CN111229375A - A roller crusher adjustment mechanism - Google Patents

Abstract

The invention relates to the field of crushers and discloses an adjusting mechanism of a roller crusher, which comprises a rack, an eccentric rotor, an arc crushing wall and an adjusting device, wherein the arc crushing wall is installed on a rack rotating shaft of the rack and can rotate along the rack rotating shaft; one end of the adjusting rod is rotatably connected with the lower part of the arc-shaped crushing wall, and the other end of the adjusting rod is connected with the cross beam. The invention realizes convenient adjustment of the ore discharge port and effective protection of relevant parts during iron passing and overload, so that the crusher can eliminate unbalance loading and operate efficiently. Compared with the prior art, the invention has simple and compact structure, can independently connect the module with the equipment host, is convenient to install, has low requirements on the size and the strength of relevant parts of the host, obviously reduces the appearance size and the manufacturing cost of the host, and is beneficial to large-scale transportation, assembly and maintenance of the equipment.

Description

A roller crusher adjustment mechanism

technical field

The invention relates to the field of crushers, in particular to an adjusting mechanism of a roller crusher.

Background technique

The well-known eccentric roller crusher is mainly composed of a frame body, an arc-shaped crushing wall rotatably connected to the upper part of the frame body, a horizontal eccentric roller body connected to the frame body and eccentrically rotatable, and a discharge port adjusting device. The eccentric rotor The outer arc surface and the inner arc surface of the arc-shaped crushing wall form a crushing cavity whose mutual distance gradually decreases. When the eccentric rotor rotates, the outer arc surface periodically approaches and moves away from the inner arc surface of the arc-shaped crushing wall. 's broken. The advantages of the principle of eccentric roller crusher are: 1. The crushing eccentricity is the same in the entire crushing chamber, which is similar to the common jaw crusher, cone crusher and gyratory crusher. The eccentricity gradually decreases along the crushing chamber. 2. The crushing cavity formed by the inner arc surface of the arc-shaped crushing wall and the outer circle of the eccentrically rotating roller makes the minerals in the crushing process bend, More shearing and breaking, low energy consumption.

Crushing equipment will inevitably enter difficult-to-break objects during use. If it is not handled properly, it will cause great damage to related parts and even cause downtime, affecting production. The existing eccentric roller crusher has many shortcomings in the discharge opening adjustment device, which causes the poor use effect of this equipment and limits the development of its advanced crushing principle. Some use a complex lever structure with many fault points; some use an electromagnet form, which cannot guarantee the reliability of the action; Therefore, the position of the arc-shaped crushing wall changes, and then the discharge port is changed. This structure needs to overcome a lot of resistance when pulling with load, resulting in large size of the hydraulic cylinder, and the entire adjustment device has many parts and complex structures, and The frame body, the fixed beam and the connection between the fixed beam and the frame body have large size requirements and high strength requirements, which make the whole machine high in manufacturing cost and difficult to install and maintain.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a roller crusher adjustment mechanism, so as to solve the aforementioned problems existing in the prior art.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

An adjustment mechanism for a roller crusher, comprising a frame (1), an eccentric rotor (2), an arc mounted on a frame rotating shaft (3) of the frame (1) and capable of rotating along the frame rotating shaft (3) A shape crushing wall (4) and an adjusting device (5), the adjusting device (5) includes a beam (5-2) and an adjusting rod (5-3), and both ends of the beam (5-2) are provided with tension plates (5). -1), one end of the tension plate (5-1) is connected to the beam (5-2), the other end of the tension plate (5-1) is fixedly connected to the frame (1); one end of the adjusting rod (5-3) The lower part of the arc-shaped crushing wall (4) is rotatably connected, and the other end of the adjusting rod (5-3) is connected with the beam (5-2).

When the crushing force acting on the arc-shaped crushing wall (4) is transmitted to the adjusting rod (5-3), the corresponding reaction force will be provided by the adjusting rod (5-3), so as to ensure the fixed size of the discharge opening. The adjusting device (5) provided in the present invention has the function of over-iron protection. When a difficult-to-break object enters the equipment, the adjusting rod can be retracted to enlarge the crushing cavity. The present invention is also provided with a breaking pin, which acts as a protective mechanism. Due to the function of the structure, when encountering difficult-to-break objects during the concession process, the breaking pin can be cut to remove the difficult-to-break objects, timely and effectively protect the relevant parts, and ensure the overall safety of the equipment.

Further, the other end of the adjusting rod (5-3) is rotatably connected to the beam (5-2), and both ends of the beam (5-2) are fixedly connected to the tension plate (5-1).

Further, the other end of the adjusting rod (5-3) is fixedly connected to the beam (5-2), and the two ends of the beam (5-2) are rotatably connected to the tension plate (5-1).

Further, the adjustment device (5) has overload protection.

Further, the overload protection has a mechanical break point.

Further, the overload protection has a hydraulic valve.

The present invention is provided with overload protection, and the overload protection has a mechanical predetermined breakpoint and a hydraulic valve. When the crushing force is large and exceeds the range that can be adjusted by the adjusting device (5), the present invention can realize the protection of related parts through overload protection. effective protection.

Further, the length value of the adjusting rod (5-3) can be continuously adjusted between the first position and the second position.

Further, the adjusting rod (5-3) is a spring structure.

Further, the number of adjustment rods (5-3) is at least one.

When the adjusting rod (5-3) corresponds to the hydraulic cylinder, the first position and the second position are respectively the fully retracted and fully extended states of the cylinder of the hydraulic cylinder; when the adjusting rod (5-3) is a spring structure , the first position and the second position are the fully retracted and fully extended states of the spring, respectively. For the case where the width of the eccentric rotor (2) is relatively large, the corresponding width of the arc-shaped crushing wall (4) will also be set relatively large, and the overall frame structure is more sensitive to eccentric load, which will affect the eccentric rotor (2). ) The parallelism of the outer arc surface busbar and the inner arc surface busbar of the arc-shaped crushing wall (4), thus affecting the discharge granularity, and the eccentric load will cause the arc-shaped crushing wall (4) and other components to be stressed. In order to eliminate the eccentric load, the present invention provides a plurality of adjustment rods (5-3) along the width direction of the arc-shaped crushing wall, and the adjustment rods (5-3) are thrust hydraulic cylinders or spring structures, which together support the arc-shaped crushing wall (4). ), to ensure the parallelism of the discharge port, to eliminate the influence of eccentric load on the discharge particle size and the impact on the arc-shaped crushing wall (4) and other related components.

The beneficial effects of the invention are as follows: the convenient adjustment of the ore discharge port is realized, and the relevant parts are effectively protected when iron is passed, so that the crusher can operate efficiently. In addition, eccentric load is unavoidable when crushing materials. The adjusting device of the present invention can eliminate the impact of eccentric load on the arc-shaped crushing wall, so that the busbar of the inner arc surface of the arc-shaped crushing wall is always parallel to the busbar of the outer arc surface of the eccentric rotor. So that the particle size of the equipment discharge remains stable. In addition, compared with the prior art, the adjusting device adopted in the present invention has a simple and compact structure, and can be independently connected to the equipment host as a module, which is easy to install, and has low requirements on the size and strength of the related parts of the host, and significantly reduces the appearance of the host. size and manufacturing cost, and facilitate the large-scale transportation, assembly and maintenance of the equipment.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic structural diagram of a frame, an arc-shaped crushing wall and an adjustment device.

Figure 3 is a schematic diagram of the frame structure.

Figure 4 is a schematic diagram of the structure of the arc-shaped crushing wall.

Figure 5 is a schematic view of the structure of the adjustment device.

FIG. 6 is a schematic diagram of the beam structure of the adjusting device.

1. Rack, 1-1, side plate 1, 1-2, side plate 1 pin hole, 1-3, side plate 2, 1-4, side plate 2 pin hole, 1-5, rack side Plate connecting beam, 2. Eccentric rotor, 3. Rack shaft, 4. Arc-shaped crushing wall, 4-1, Crushing liner, 4-2, Convex 1, 4-3, Convex 2, 4-4 Arc Shape crushing wall pin hole, 5. Adjusting device, 5-1, Tension plate, 5-2, Beam, 5-3, Adjusting rod, 5-4, Beam, 5-5, Convex, 5-6, Adjustment Rod seat plate, 5-7, bolt holes.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Embodiment 1, a roller crusher adjustment mechanism, as shown in Figures 1 and 2, includes a frame 1, an eccentric rotor 2, and is installed on the frame shaft 3 of the frame 1 and can be adjusted around the frame shaft 3. Rotating arc-shaped crushing wall 4 and adjusting device 5. The frame 1 includes a side plate 1-1 and a side plate 2 1-3. The side plate 1-1 and the side plate 2 1-3 are connected by the frame side plate connecting beams 1-5 to form the whole frame (see image 3). As shown in Figure 4, the arc-shaped crushing wall 4 is provided with a crushing lining plate 4-1, and the setting of the crushing lining plate helps to improve the crushing efficiency of the crusher, increase the output, and reduce the metal consumption. The adjusting device 5 includes a beam 5-2 and an adjusting rod 5-3.

As shown in FIG. 5 , both ends of the beam 5-2 are provided with tension plates 5-1. In this embodiment, the number of the tension plates is two, and each tension plate is triangular and is located at the left end of the beam 5-2. and the right end. One end of the two tension plates 5-1 is respectively provided with a circular hole, and the circular holes of the two tension plates are concentric with each other. 5-2 Turnable connection. The other end of the tension plate 5-1 is fixedly connected to the frame 1, the other end of each tension plate is provided with two pin holes, the two pin holes of the tension plate at the left end of the beam 5-2 and a pin on the side plate The shaft holes 1-2 correspond to each other, and the two pin shaft holes of the tension plate located at the right end of the beam 5-2 correspond to the two pin shaft holes 1-4 of the side plate.

As shown in Figure 6, the beam 5-4 of the cross beam 5-2 is provided with an adjusting rod seat plate 5-6, the adjusting rod seat plate 5-6 is provided with a bolt hole 5-7, and one end of the adjusting rod 5-3 is provided with a bolt The assembly is fixedly connected with the adjusting rod seat plate 5-6, the adjusting rod 5-3, the adjusting rod seat plate 5-6 and the beam 5-2 form a whole, and this whole can be along the concentric mutually concentric on the two tension plates 5-1. The circular hole rotates, the lower part of the arc-shaped crushing wall 4 is provided with an arc-shaped crushing wall pin shaft hole 4-4, and the other end of the adjusting rod 5-3 is rotatably connected to the lower part of the arc-shaped crushing wall 4.

The arc-shaped crushing wall 4 is connected to the rotating shaft 3 of the frame 1 through the convex shaft one 4-2 and the convex shaft two 4-3 on the arc-shaped crushing wall 4, so that the entire arc-shaped crushing wall can rotate along the rotating shaft 3, and the eccentric rotor 2. The outer arc surface and the inner arc surface of the arc-shaped crushing wall 4 form a crushing cavity with a gradually decreasing distance. When the eccentric rotor 2 rotates, the outer arc surface of the eccentric rotor 2 and the inner arc surface of the arc-shaped crushing wall 4 periodically approach and move away, thereby crushing the ore. The adjusting rod 5-3 adopts a thrust hydraulic cylinder structure, the thrust provided by the adjusting rod 5-3 and the crushing force of the crushed ore acting on the arc-shaped crushing wall 4 cancel each other, and keep the discharge port constant. When the equipment passes through the hard-to-break objects, the hydraulic cylinder can make the ore discharge port appropriately enlarged by retreating and discharge the hard-to-break objects.

From the perspective of the force of the parts, the crushing force acts on the round hole on the tension plate 5-1 through the whole formed by the arc-shaped crushing wall 4, the adjusting rod 5-3 and the beam 5-2. The other end of the tension plate 5-1 is connected and fixed on the frame 1, so the tension plate 5-1 is always subjected to the tension force, and there will be no instability under compression, so the tension plate 5-1 can be lightweight. The adjusting rod 5-3 adopts a thrust hydraulic cylinder structure. Compared with the pulling force cylinder used in the prior art, the diameter of the hydraulic cylinder is smaller, so that the structure of the whole crusher is more simplified and compact.

The regulating device 5 has overload protection with hydraulic valves and mechanical breakpoints.

The adjusting rod 5-3 in the first embodiment is a thrust hydraulic cylinder, and the length value of the adjusting rod 5-3 can be continuously performed between the first position (the cylinder is fully retracted) and the second position (the cylinder is fully extended). adjust. The adjusting rod 5-3 can also be a spring structure, and the first position and the second position correspond to the fully retracted and fully extended states of the spring, respectively.

In the first embodiment, the eccentric load generated by the crushing force on the arc-shaped crushing wall can be absorbed by the torsional rigidity of the beam 5-2. In addition, according to the width of the arc-shaped crushing wall 4, a plurality of adjustment rods can be set, and the plurality of adjustment rods work together on the arc-shaped crushing wall 4, so as to better eliminate the eccentric load. The plurality of adjusting rods 5-1 all use thrust hydraulic cylinders, and the adjusting rods 5-1 can be connected to the oil circuit, and the oil is supplemented and discharged by the same oil circuit, so that the hydraulic system is greatly simplified and the reliability is improved.

The second embodiment is an adjustment mechanism of a roller crusher. The other end of the adjustment rod 5-3 is rotatably connected to the beam 5-2, and the two ends of the beam 5-2 are fixedly connected to the tension plate 5-1. The tension plate 5-1 and the beam 5-2 form a whole, and the whole can be rotatably connected with the other end of the adjusting rod 5-3. The rest of the structure of the second embodiment is the same as that of the first embodiment.

The adjustment device 5 has overload protection, and the overload protection has a mechanical predetermined breakpoint and a hydraulic valve. When the crushing force is large and exceeds the range that the adjustment device 5 can adjust, the present invention can effectively protect the relevant parts through the overload protection. . If the adjustment rod 5-1 judges through the pressure detection that the hard-to-break objects have not been discharged within a certain period of time, the adjustment rod 5-1 will be fully decompressed and quickly and greatly retracted under the action of the crushing force, making the arc-shaped crushing The wall 4 rotates counterclockwise relative to the frame rotating shaft 3 rapidly and at a large angle, and the arc-shaped crushing wall 4 moves away from the eccentric rotor 2 rapidly and greatly, so as to realize the discharge of difficult-to-break objects, thereby protecting the relevant parts from damage and realizing the function of over-iron protection. .

By adopting the above-mentioned technical solutions disclosed in the present invention, the following beneficial effects are obtained: the present invention realizes the convenient adjustment of the ore discharge port, and effectively protects the relevant parts during iron passing and overloading, so that the crusher can eliminate the partial load, and the high-efficiency run. Compared with the prior art, the adjusting device adopted in the present invention has a simple and compact structure, and can be connected to the main machine of the equipment independently as a module, which is easy to install, and has low requirements on the size and strength of the relevant parts of the main machine, and significantly reduces the overall size and size of the main machine. Manufacturing costs, and facilitate the large-scale transportation, assembly and maintenance of the equipment.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be regarded as protection scope of the present invention.

Claims (9)

1. The adjusting mechanism of the roller crusher comprises a rack (1), an eccentric rotor (2), an arc-shaped crushing wall (4) and an adjusting device (5), wherein the arc-shaped crushing wall (4) and the adjusting device (5) are mounted on a rack rotating shaft (3) of the rack (1) and can rotate along the rack rotating shaft (3), the adjusting device (5) comprises a cross beam (5-2) and an adjusting rod (5-3), tension plates (5-1) are arranged at two ends of the cross beam (5-2), one end of each tension plate (5-1) is connected with the cross beam (5-2), and the other end of each tension plate (5-1) is fixedly connected with the rack (1); one end of the adjusting rod (5-3) is rotatably connected with the lower part of the arc-shaped crushing wall (4), and the other end of the adjusting rod (5-3) is connected with the cross beam (5-2).

2. A roller crusher adjustment mechanism according to claim 1, characterized in that the other end of the adjustment bar (5-3) is rotatably connected to the cross beam (5-2), and that both ends of the cross beam (5-2) are fixedly connected to the tension plate (5-1).

3. A roller crusher adjustment mechanism according to claim 1, characterized in that the other end of the adjustment bar (5-3) is fixedly connected to the cross beam (5-2), and that both ends of the cross beam (5-2) are rotatably connected to the tension plate (5-1).

4. A roller crusher adjustment mechanism according to claim 2 or 3, characterized in that the adjustment device (5) has overload protection.

5. A roller crusher adjustment mechanism according to claim 4, characterized in that the overload protection has a mechanical break point.

6. A roller crusher adjustment mechanism according to claim 5, characterized in that the overload protection has a hydraulic valve.

7. A roller crusher adjustment mechanism according to claim 1, characterized in that the length value of the adjustment bar (5-3) is continuously adjustable between the first position and the second position.

8. A roller crusher adjustment mechanism according to claim 1, characterized in that the adjustment bar (5-3) is of a spring construction.

9. A roller crusher adjustment mechanism according to claim 1, characterized in that the number of adjustment bars (5-3) is at least one.

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