CN214367657U

CN214367657U - Side seal structure of gearbox cover

Info

Publication number: CN214367657U
Application number: CN202120318378.1U
Authority: CN
Inventors: 彭宇
Original assignee: Guangzhou Turui Machinery Equipment Co ltd
Current assignee: Guangzhou Turui Machinery Equipment Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-08
Anticipated expiration: 2031-02-04

Abstract

The utility model relates to the technical field of sealing structures, in particular to a side sealing structure of a gearbox cover, which comprises a sealing component, wherein the sealing component comprises an air bag, one side of the air bag is wrapped by a rubber sleeve, and the other side of the air bag is connected with a connecting base plate; and the rubber sleeve is provided with a pipe hoop. When the gearbox cover is sealed, the sealing assembly is driven to enter a notch of the gearbox cover to be sealed through the air cylinder, the air bag is inflated and pressurized through the inflation hole by the inflation device, and primary sealing is formed after the notch of the whole gearbox cover is filled with air along with the pressurization and expansion of the air bag; and then the rubber sleeve on one side of the air bag is pressed due to the expansion of the air bag and is tightly attached to the oil way hole on the inner wall of the notch of the gearbox cover, and when the pressure is high enough, the oil way hole is sealed for the second time. Under the common cooperation of gasbag and gum cover, seal assembly has formed double-deck seal structure for the gear box lid, has strengthened the leakproofness of gear box lid greatly, has prevented the gas leakage oil leak phenomenon that oil circuit hole often appears under the traditional sealing means, security and stability when having improved the use.

Description

Side seal structure of gearbox cover

Technical Field

The utility model relates to a seal structure technical field, especially a side seal structure of gear box cover.

Background

In the prior art, the use condition of the automobile gearbox cover is harsh, and the load change is large. The structure design is very compact, and the strengthening degree is very high. During actual work, the working temperature in the box is high, so that lubricating oil in the box generates steam, the space of the box body is filled with the steam, the pressure in the box is increased, and leakage occurs. However, the sealing method in the market is too simple, the oil way hole cannot be sealed, the oil leakage phenomenon often occurs, and great potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a customized side seal structure for a transmission case cover to meet the sealing requirements of the transmission case cover.

A side seal structure of a gearbox cover comprises a sealing assembly, wherein one end of the sealing assembly is connected with a notch of the gearbox cover and is matched with the diameter of the notch, an oil way hole is formed in the inner wall of the notch, and the other end of the sealing assembly is connected with an air cylinder;

the sealing assembly comprises an air bag, one side of the air bag is wrapped by a rubber sleeve, and the other side of the air bag is connected with the connecting base plate; and the rubber sleeve is provided with a pipe hoop.

In one embodiment, the seal assembly is connected to the cylinder by an internally expanding mounting plate.

In one embodiment, the other side of the cylinder is provided with a cylinder mounting plate.

In one embodiment, the end of the connecting pad connected with the air bag is provided with a U-shaped notch.

In one embodiment, the air bag is provided with an inflation hole at the position corresponding to the U-shaped notch.

In one embodiment, the bottom of the connecting pad has a rounded protrusion.

In one embodiment, the internal expansion mounting plate is provided with a circular groove matched with the circular protrusion.

According to the side sealing structure of the gearbox cover, the sealing assembly is driven by the cylinder to enter the notch of the gearbox cover to be sealed, and the air inflation device inflates and pressurizes the air bag through the inflation hole, so that the air bag is filled in the whole notch. Meanwhile, the expanded and pressurized air bag is closely attached to the wall of the notch, the rubber sleeve on one side of the air bag is pressed tightly, and the rubber sleeve is tightly attached to the oil way hole to form a sealing structure. Under the combined action of the air bag and the rubber sleeve, the notch of the gearbox cover and the oil way hole simultaneously achieve the sealing effect.

Drawings

FIG. 1 is a front view of a side seal structure of a transmission case cover according to the present invention;

FIG. 2 is an enlarged view of the side seal assembly of the transmission case cover according to the present invention;

FIG. 3 is an enlarged view of the side seal structure transmission case cover of the transmission case cover according to the present invention;

the sealing assembly 100, the transmission case cover 200, the air cylinder 300, the air bag 110, the rubber sleeve 120, the connecting base plate 130, the pipe clamp 140, the inflation hole 150, the notch 210, the oil path hole 220, the internal expansion mounting plate 310 and the air cylinder mounting plate 320.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, 2 and 3, a side seal structure of a transmission case cover 200 comprises a seal assembly 100, wherein one end of the seal assembly 100 is connected with a notch 210 of the transmission case cover 200 and is matched with the diameter of the notch 210, an oil passage hole 220 is formed in the inner wall of the notch, and the other end of the seal assembly 100 is connected with an air cylinder 300;

the sealing assembly 100 comprises an air bag 110, one side of the air bag 110 is wrapped by a rubber sleeve 120, and the other side of the air bag is connected with a connecting cushion plate 130; the rubber sleeve 120 is provided with a pipe hoop 140.

When the airbag 110 is inflated, the notch 210 of the transmission case cover 200 forms a seal; and the rubber sleeve 120 on one side is pressed tightly, and at this time, the rubber sleeve 120 is closely attached to the oil way hole 220 to form sealing; the connecting pad 130 fixes the position of the airbag 110, and the pipe clamp 140 fixes the position of the rubber sleeve 120, so that the whole sealing assembly has a firmer sealing effect and a better sealing effect.

In one embodiment, the seal assembly 100 is coupled to the cylinder 300 by an inflatable mounting plate 310. When the cylinder 300 pushes the sealing assembly 100, the inner expanding mounting plate 310 can ensure that the two are more stable and the power device of the cylinder 300 can work smoothly.

In one embodiment, a cylinder mounting plate 320 is provided at the other side of the cylinder 300 to fix the cylinder 300.

In one embodiment, the connecting pad 130 has a U-shaped notch at the end that is connected to the airbag 110.

In one embodiment, the airbag 110 has an inflation hole 150 at a position corresponding to the U-shaped notch.

The position of the inflation hole 150 corresponds to the U-shaped notch, which facilitates the inflation device to inflate the airbag 110.

In one embodiment, the bottom of the connection pad 130 has a rounded protrusion.

In one embodiment, the inner mounting plate 310 has a circular groove thereon that fits the circular protrusion.

The rounded protrusion fits into the groove to facilitate the connection of the connection pad 130 on the seal assembly 100 to the internal expansion mounting plate 310.

In sealing the transmission cover 200, the cylinder 300 is operated to push the seal assembly 100 into the notch 210 of the transmission cover 200, and the inflator is inflated through the inflation hole 150 at the U-shaped notch of the connecting pad 130. As the airbag 110 expands under pressure, it fills the notches 210 of the entire transmission cover 200 to form a primary seal; then, the rubber sleeve 120 on one side of the airbag 110 is pressurized by the expansion of the airbag 110 and is tightly attached to the oil path hole 220 on the inner wall of the gearbox cover notch 210, and when the pressure is high enough, the oil path hole 220 is sealed for the second time.

Under the cooperation of the airbag 110 and the rubber sleeve 120, the sealing assembly 100 forms a double-layer sealing structure for the transmission case cover 200, so that the sealing performance of the transmission case cover 200 is greatly enhanced, the phenomena of air leakage and oil leakage frequently occurring in the oil passage hole 220 under the traditional sealing means are prevented, and the safety and the stability during use are improved.

Thus, the sealing assembly 100 is driven by the cylinder 300 to enter the notch 210 of the transmission case cover 200 to be sealed, and the inflator inflates and pressurizes the airbag 110 through the inflation hole 150, so that the airbag 110 fills the whole notch 210. Meanwhile, the inflated and pressurized air bag 110 is closely attached to the wall of the notch 210, the rubber sleeve 120 on one side of the notch is pressed tightly, and the rubber sleeve 120 is tightly attached to the oil passage hole 220, so that a sealing structure is formed. Under the combined action of the airbag 110 and the rubber sleeve 120, the notch 210 and the oil passage hole 220 of the transmission case cover 200 achieve the sealing effect simultaneously.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a side seal structure of gearbox lid, includes seal assembly, its characterized in that: one end of the sealing assembly is connected with a notch of the gearbox cover and is matched with the diameter of the notch, an oil way hole is formed in the inner wall of the notch, and the other end of the sealing assembly is connected with the air cylinder;

the sealing assembly comprises an air bag, one side of the air bag is wrapped by a rubber sleeve, and the other side of the air bag is connected with the connecting base plate; the rubber sleeve is provided with a rubber sleeve fixing clamp.

2. The side seal structure of a transmission case cover according to claim 1, wherein: the sealing assembly is connected with the cylinder through an inner expansion mounting plate.

3. The side seal structure of a transmission case cover according to claim 1, wherein: and a cylinder mounting plate is arranged on the other side of the cylinder.

4. The side seal structure of a transmission case cover according to claim 1, wherein: one end of the connecting base plate, which is connected with the air bag, is provided with a U-shaped notch.

5. The side seal structure of a transmission case cover according to claim 4, wherein: and the air bag is provided with a vent hole at the position corresponding to the U-shaped notch.

6. The side seal structure of a transmission case cover according to claim 2, wherein: the bottom of the connecting cushion plate is provided with a circular protrusion.

7. The side seal structure of a transmission case cover according to claim 6, wherein: the inner expansion mounting plate is provided with a circular groove matched with the circular protrusion.