CN205383268U - Seal structure of auto steering ware sealed cowling - Google Patents

Abstract

The utility model discloses a sealing structure of the sealing cover of the automobile steering gear, which comprises a sheath support sleeved on the input shaft of the steering gear. The rubber seal sheath I in contact with, the other end of the sheath support is installed on the steering gear housing, and the other end of the sheath support and the end face of the steering gear housing is provided with the The rubber sealing sheath II on the sheath support; the utility model through the structural design of the steering gear sealing cover, makes the matching surfaces of the entire steering gear sealing structure have rubber elastic body seals, which can effectively protect against water, dust, Exhaust gas and noise are sealed to improve the sealing performance of the vehicle and ensure the environment and noise level inside the vehicle.

Description

A sealing structure of an automobile steering gear sealing cover

technical field

The utility model relates to the technical field of steering system sealing, in particular to a sealing structure of an automobile steering gear sealing cover.

Background technique

Due to structural requirements, the steering system needs to realize steering through the through holes on the front panel of the vehicle body. The through holes on the front wall will cause water, dust, exhaust gas, noise, etc. to enter the cab, affecting the environment and noise level in the vehicle interior. With the improvement of consumers' living requirements and standards, cars are a part of people's lives, and consumers' perception of the environment and noise levels in the interior of the vehicle has become the main indicator for choosing a model. Improving the sealing level of the steering system at the through hole of the dash panel is the basis for improving the sealing level of the whole vehicle.

A structure of a steering gear seal cover through a hole on the dash panel is mainly composed of a support that is press-fitted on the steering gear housing and a soft seal cover that is press-fit on the support. The bearing and the steering gear housing are directly interference-fitted, and there is no elastomer seal, so there is a gap at the matching place, and the dustproof and sound insulation are not good. If there is no gap at the joint of this structure, the technical requirements for the joint surface of the two parts of this structure are extremely high, and the production cost of the process increases greatly.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a sealing structure of an automobile steering gear sealing cover with good sealing performance, simple structure and low cost.

In order to achieve the above object, the technical solution adopted by the utility model is:

The sealing structure of the seal cover of the automobile steering gear includes a sheath support that is sleeved on the input shaft of the steering gear, and one end of the sheath support is provided with a rubber sealing sheath I that is in sealing contact with the seal mounting plate of the cowl steering gear. , the other end of the sheath support is installed on the steering gear housing, and a rubber rubber mounted on the sheath support is provided between the other end of the sheath support and the end face of the steering gear housing end. Sealing sheath II.

The sheath support is provided with an external installation step for installing the rubber sealing sheath I.

One end surface of the rubber sealing sheath I is tightly fitted to the step surface of the external installation step, and the other end surface of the rubber sealing sheath I is pressed and fitted to the cowl steering gear sealing installation plate.

The sheath support is provided with an inner installation step for installing the rubber sealing sheath II, and a connecting sleeve connected with the steering gear housing is extended along the inner installation step on the sheath support.

One end face of the rubber sealing sheath II is tightly fitted to the step surface of the internal installation step, and the other end face of the rubber sealing sheath II is pressed and fitted to the end face of the steering gear housing.

The connection sleeve is connected with the steering gear housing by interference fit.

The rubber sealing sheath I has an oval structure.

The utility model has the advantages that: the sealing structure of the steering gear sealing cover of this kind of automobile, through the structural design of the steering gear sealing cover, the matching surfaces of the entire steering gear sealing structure have rubber elastic body seals, which can effectively protect the water , dust, exhaust gas and noise are sealed to improve the sealing level of the whole vehicle and ensure the environment and noise level inside the vehicle; meanwhile, the sealing structure of the sealing cover of the automobile steering gear is simple in structure and low in cost.

Description of drawings

The following is a brief description of the contents expressed in the accompanying drawings of the utility model specification and the marks in the figures:

Fig. 1 is the structure diagram of the seal structure of the utility model automobile steering gear seal cover.

Fig. 2 is a structural schematic diagram of the cowl steering gear seal mounting plate of the seal structure of the automobile steering gear seal cover of the present invention.

Fig. 3 is a structural schematic diagram of the rubber sealing sheath I of the sealing structure of the automobile steering gear sealing cover of the present invention.

The symbols in the above figures are:

1. Cowl steering gear seal mounting plate, 2. Steering gear input shaft, 3. Rubber seal sheath Ⅰ, 4. Sheath support, 5. Rubber seal sheath II, 6. Steering gear housing, 7. External Mounting steps, 8, internal mounting steps, 9, matching holes.

detailed description

The specific implementation of the present utility model will be described in further detail below through the description of the best embodiment with reference to the accompanying drawings.

As shown in Figure 1, the sealing structure of this kind of automotive steering gear seal cover includes a sheath support 4 sleeved on the steering gear input shaft 2, and one end of the sheath support 4 is provided with a cowl steering gear seal mounting plate 1 The rubber seal sheath I3 in sealing contact, the other end of the sheath support 4 is installed on the steering gear housing 6, and the other end of the sheath support 4 and the end face of the steering gear housing 6 is installed on the sheath support Rubber sealing sheath II5 on seat 4.

The rubber sealing sheath Ⅰ3, the sheath support 4, and the rubber sealing sheath Ⅱ5 are all hollow structures. The rubber sealing sheath Ⅰ3 is pressed on the upper surface of the sheath support 4, and the rubber sealing sheath Ⅱ5 is pressed on the sheath support. 4 the lower end; the entire assembly is press-fitted on the steering gear housing 6 through the steering gear input shaft 2 to form a steering gear sealing cover structure; the reliable sealing effect can be improved, and water, dust, exhaust gas and noise can be effectively sealed to improve the overall performance of the vehicle. The sealing level ensures the environment and noise level in the car.

The sheath support 4 is provided with an external installation step 7 for installing the rubber sealing sheath I3; the rubber sealing sheath I3 is press-fitted on the external installation step 7, the installation is convenient and reliable, and the sealing effect is good.

One end face of the rubber seal sheath I3 is tightly fitted to the step surface of the external mounting step 7, and the other end face of the rubber seal sheath I3 is pressed and fitted to the cowl steering gear seal mounting plate 1 to provide a reliable and stable sealing effect.

The sheath support 4 is provided with an internal installation step 8 for installing the rubber sealing sheath II5, and the sheath support 4 is extended along the internal installation step 8 to form a connecting sleeve connected with the steering gear housing 6 . The internal installation step 8 facilitates the assembly of the rubber sealing sheath II 5 and has a good sealing effect at the same time.

One end face of the rubber sealing sheath Ⅱ5 is tightly fitted with the step surface of the internal installation step 8, and the other end face of the rubber sealing sheath Ⅱ5 is pressed and fitted with the end face of the steering gear housing 6, providing a reliable and stable sealing effect .

The connection sleeve and the steering gear housing 6 are connected by interference fit; the sheath support 4 and the steering gear housing 6 are connected reliably and stably, and the sealing performance is good.

As shown in Figure 2 and Figure 3, the rubber sealing sheath I3 has an elliptical structure; correspondingly, the matching hole 9 of the cowl steering gear seal mounting plate 1 adopts an elliptical structure, which can effectively reduce the distance between the two parts compared with the circular matching structure. The outer dimensions further effectively increase the layout space of the vehicle and reduce the weight and cost of the vehicle.

The rubber seal sheath II5 is closely attached to the end surface of the housing at the end of the steering gear input shaft 2 and the step surface of the inner installation step 8 of the sheath support 4, and the rubber seal sheath I3 is connected to the cowl steering gear seal installation plate 1 and the sheath The support 4 is closely fitted, and the above-mentioned bonding is all surface bonding. The above-mentioned rubber sealing sheath I3 and rubber sealing sheath II5 are all elastic bodies, which can be compressed and deformed to seal the mating surfaces, so that the mating surfaces of the entire steering gear sealing structure are sealed with rubber elastomers. Therefore, the sealing cover structure can effectively seal water, dust, waste gas and noise.

When the sealing structure of this kind of automobile steering gear sealing cover is installed, firstly, the rubber sealing sheath II5 is press-fitted on the step surface of the internal installation step 8, and the combination of the above two parts is pressed by the steering gear input shaft 2 and the steering gear housing 6. Install together, and the sheath support 4 and the steering gear housing 6 are interference fit. Then press-fit the rubber sealing sheath I3 on the sheath support 4, and finally assemble all the above-mentioned component assemblies with the cowl steering gear mounting plate 1. The above-mentioned rubber sealing sheath I3 and rubber sealing sheath II5 are all elastic bodies, which can be compressed and deformed to seal the mating surfaces, so that the mating surfaces of the entire steering gear sealing structure are sealed with rubber elastomers. Therefore, the sealing structure of the sealing cover can effectively seal water, dust, waste gas and noise.

Apparently, the specific implementation of the utility model is not limited by the above methods, as long as various insubstantial improvements are made by adopting the method concepts and technical solutions of the utility model, they all fall within the protection scope of the utility model.

Claims (7)

1. A sealing structure for an automobile steering gear seal cover, characterized in that: it includes a sheath support that is sleeved on the steering gear input shaft, and one end of the sheath support is provided with a sealing contact with the cowl steering gear seal mounting plate. The rubber sealing sheath I, the other end of the sheath support is installed on the steering gear housing, and the protective cover is installed between the other end of the sheath support and the end face of the steering gear housing. The rubber sealing sheath II on the sleeve support. 2. The sealing structure of the sealing cover of the automobile steering gear according to claim 1, characterized in that: said sheath support is provided with an external installation step for installing said rubber sealing sheath I. 3. The sealing structure of the automobile steering gear sealing cover as claimed in claim 2, characterized in that: one end face of the rubber sealing sheath I and the step surface of the external installation step are pressed and fitted, and the rubber sealing sheath I The other end face of the steering wheel is press-fitted with the seal mounting plate of the cowl steering gear. 4. The sealing structure of the automobile steering gear sealing cover as claimed in claim 1, characterized in that: said sheath support is provided with an internal installation step for installing said rubber sealing sheath II, and said sheath support A connecting sleeve connected with the diverter housing is extended along the inner installation step. 5. The sealing structure of the sealing cover of the automobile steering gear as claimed in claim 4, characterized in that: one end face of the rubber sealing sheath II and the step surface of the inner installation step are tightly fitted, and the rubber sealing sheath II The other end face of the steering gear housing is press-fitted with the end face of the steering gear housing. 6 . The sealing structure of the sealing cover of the automobile steering gear according to claim 4 , characterized in that: the connection sleeve and the steering gear housing are connected with interference fit. 7 . 7. The sealing structure of the automobile steering gear sealing cover according to any one of claims 1-6, characterized in that: the rubber sealing sheath I is an elliptical structure.