CN221003697U - Sealing structure of adjusting arm - Google Patents
Sealing structure of adjusting arm Download PDFInfo
- Publication number
- CN221003697U CN221003697U CN202322360495.6U CN202322360495U CN221003697U CN 221003697 U CN221003697 U CN 221003697U CN 202322360495 U CN202322360495 U CN 202322360495U CN 221003697 U CN221003697 U CN 221003697U
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- Prior art keywords
- worm
- adjusting arm
- hole
- worm wheel
- cover plate
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- 238000007789 sealing Methods 0.000 title claims abstract description 36
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 7
- 239000013049 sediment Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000000994 depressogenic effect Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a sealing structure of an adjusting arm, which comprises an adjusting arm shell, a worm wheel and a worm, wherein a worm hole is formed in the side surface of the adjusting arm shell, a worm wheel hole is longitudinally formed in the adjusting arm shell, a worm wheel is arranged in the worm wheel hole, a worm connected with the worm wheel in a meshed mode is arranged in the worm hole, a nut is arranged at one end, extending out of the adjusting arm shell, of the worm, a dustproof pad is arranged between the nut and the side surface of the adjusting arm shell, the dustproof pad is abutted against the side surface of the adjusting arm shell, concave portions are formed in the upper surface and the lower surface of the adjusting arm shell, which are positioned outside the worm wheel hole, a plurality of first screw holes are formed in the concave portions, and a rear dustproof cover plate is arranged on the concave portions. According to the utility model, through the matching arrangement of the dustproof cover plate and the sealing ring, the penetration of sediment and dust can be effectively prevented, so that the whole adjusting arm has a good sealing effect, and the phenomena of rust and corrosion in the adjusting arm are avoided, thereby prolonging the service life of the adjusting arm.
Description
Technical Field
The utility model relates to the technical field of adjusting arms, in particular to a sealing structure of an adjusting arm.
Background
The brake adjusting arm is an important component of a vehicle braking system, and the brake adjusting arm in the prior art is generally formed by assembling a shell, a worm wheel, a bushing and other parts, and the specific structure of the brake adjusting arm is shown in patent number 201020184022.5.
Currently, the adjusting arm consists of an adjusting arm shell, and a worm wheel, a worm and a worm shaft which are arranged in the adjusting arm shell; and a positioning protrusion is arranged on one side of the stop ring, and a positioning groove corresponding to the stop ring seat is arranged on the stop ring seat. The two end faces of the worm wheel with the old structure are directly sealed by the cover plates at the two end faces of the adjusting arm, so that the sealing performance is poor, and because the worm wheel and the cover plates are always provided with gaps, and the cover plate stamping parts can be manufactured to be uneven, the thickness dimension of the worm wheel is provided with tolerance, so that the gaps between the worm wheel and the cover plates are difficult to control. Then, due to poor sealing, dust and sediment can enter, even enter the meshing position of the worm and the worm wheel, and the adjustment difficulty and the blocking phenomenon can be caused for a long time. In addition, because the entering of silt still can lead to the inside rust and the corrosion phenomenon of adjustment arm, also can bring wearing and tearing aggravation and be difficult to adjust scheduling problem equally, makes adjustment arm life-span shorten by a wide margin, and the wearing and tearing are serious will appear in the time soon, and the quality decline, needs to change the product, even presents the traffic accident problem.
In view of the above, a sealing structure of an adjusting arm is proposed to solve the above problems.
Disclosure of Invention
The utility model aims to provide a sealing structure of an adjusting arm, which is used for solving the problems in the background art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
The utility model provides a seal structure of adjustment arm, includes adjustment arm casing, worm wheel and worm, the worm hole has been seted up to adjustment arm casing side, the worm wheel hole has been vertically seted up to adjustment arm casing, be provided with the worm wheel in the worm wheel hole, install the worm that is connected with the worm wheel meshing in the worm hole, the one end that the worm extends to outside the adjustment arm casing is provided with the nut, be provided with dustproof pad between nut and the adjustment arm casing side, dustproof pad and the butt of adjustment arm casing side are located the worm wheel hole outside all seted up the depressed part on adjustment arm casing upper surface and the lower surface, a plurality of first screw have been seted up on the depressed part, all set up back dustproof apron on the depressed part.
Preferably, the worm is provided with a meshing part meshed with the worm wheel, a linkage chamber communicated with the worm hole is formed in the adjusting arm shell outside the meshing part, bearings are arranged on the worm at two ends of the linkage chamber, the worm is connected with the worm hole in a supporting mode through the bearings, sealing rings are arranged on the worm close to the bearings, and the two sealing rings are respectively located on one side of the side faces of the two bearings, wherein the two side faces are opposite to each other.
Preferably, a clamping strip is arranged on the outer surface of the sealing ring, the clamping strip is an annular clamping strip, and the clamping strip can be inserted into the inner surface of the worm hole.
Preferably, the sealing ring is made of polytetrafluoroethylene.
Preferably, a plurality of second screw holes corresponding to the first screw holes arranged on the concave part are formed in the dustproof cover plate, a first through hole corresponding to the worm wheel hole is formed in the dustproof cover plate, a round dustproof table capable of being inserted into the worm wheel hole is arranged on the dustproof cover plate outside the first through hole, and a rubber pad matched with the dustproof cover plate is arranged on the dustproof cover plate outside the round dustproof table.
Preferably, a plurality of third screw holes corresponding to the second screw holes are formed in the rubber pad, and a second through hole for the round dust-proof table to pass through is formed in the rubber pad.
The beneficial effects of the utility model are as follows:
According to the utility model, the sealing rings are arranged on the worms at the two sides of the meshing part, the clamping strips which can be inserted into the inner surfaces of the worm wheel holes are arranged on the outer surfaces of the sealing rings, meanwhile, the sealing rings are made of polytetrafluoroethylene, and the characteristics of low friction coefficient of polytetrafluoroethylene are utilized, so that excessive rotation resistance is not brought, deformation of the sealing rings is not influenced, sediment and dust infiltration can be effectively prevented, the sealing performance can be effectively improved, the maintenance period is prolonged, and the service life of the whole adjusting arm is further prolonged; the upper surface and the lower surface of the adjusting arm shell are respectively provided with a concave part, a dustproof cover plate is arranged in the concave parts, and a rubber pad is arranged between the dustproof cover plate and the concave parts, so that the sealing effect of the whole adjusting arm can be further improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a part of the structure of the present utility model;
FIG. 3 is a schematic view of the structure of the dust cover plate of the present utility model;
fig. 4 is a schematic structural view of the rubber pad of the present utility model.
Detailed Description
In order to provide a better understanding of the present utility model, the present utility model will be further described in detail with reference to the drawings and embodiments.
As shown in fig. 1-4, a sealing structure of an adjusting arm comprises an adjusting arm shell 1, a worm wheel 2 and a worm 3, wherein a worm hole 15 is formed in the side surface of the adjusting arm shell 1, a worm wheel hole 16 is longitudinally formed in the adjusting arm shell 1, the worm wheel 2 is arranged in the worm wheel hole 16, the worm 3 engaged and connected with the worm wheel 2 is installed in the worm hole 15, a nut 32 is arranged at one end of the worm 3 extending out of the adjusting arm shell 1, a dustproof pad 31 is arranged between the nut 32 and the side surface of the adjusting arm shell 1, the dustproof pad 31 is abutted against the side surface of the adjusting arm shell 1, concave parts 11 are formed in the upper surface and the lower surface of the adjusting arm shell 1, a plurality of first screw holes 12 are formed in the concave parts 11, and a rear dustproof cover plate 4 is arranged on the concave parts 11.
The worm 3 is provided with a meshing part 35 meshed with the worm wheel 2, a linkage chamber 14 communicated with the worm hole 15 is formed in the adjusting arm shell 1 positioned at the outer side of the meshing part 35, bearings 34 are arranged on the worm 3 positioned at two ends of the linkage chamber 14, the worm 3 is supported and connected with the worm hole 15 through the bearings 34, a sealing ring 33 is arranged on the worm 3 close to the bearings 34, and the two sealing rings 33 are respectively positioned at one side of the opposite side surfaces of the two bearings 34.
The outer surface of the sealing ring 33 is provided with a clamping strip 331, the clamping strip 331 is an annular clamping strip, and the clamping strip 331 can be inserted into the inner surface of the worm hole 15.
The seal ring 33 is a polytetrafluoroethylene seal ring.
The dustproof cover plate 4 is provided with a plurality of second screw holes 42 corresponding to the first screw holes 12 arranged on the concave parts, the dustproof cover plate 4 is provided with a first through hole 43 corresponding to the worm wheel hole 16, the dustproof cover plate 4 positioned outside the first through hole 43 is provided with a round dustproof table 41 which can be inserted into the worm wheel hole 16, and the dustproof cover plate 4 positioned outside the round dustproof table 41 is provided with a rubber pad 44 matched with the dustproof cover plate 4.
The rubber pad 44 is provided with a plurality of third screw holes 46 corresponding to the second screw holes 42, and the rubber pad 44 is provided with a second through hole 45 for the round dust-proof table 41 to pass through.
The working principle is used: the worm on two sides of the meshing part is provided with the sealing ring, the outer surface of the sealing ring is provided with the clamping strip which can be inserted into the inner surface of the worm wheel hole, meanwhile, the sealing ring is made of polytetrafluoroethylene, and the characteristics of low friction coefficient of polytetrafluoroethylene are utilized, so that excessive rotation resistance cannot be brought, deformation of the sealing ring cannot be influenced, infiltration of sediment and dust can be effectively prevented, sealing performance can be effectively improved, maintenance period is prolonged, and the service life of the whole adjusting arm is further prolonged; the upper surface and the lower surface of the adjusting arm shell are respectively provided with a concave part, a dustproof cover plate is arranged in the concave parts, and a rubber pad is arranged between the dustproof cover plate and the concave parts, so that the sealing effect of the whole adjusting arm can be further improved. The utility model has simple structure and convenient operation, and can effectively prevent the penetration of sediment and dust through the matching arrangement of the dustproof cover plate and the sealing ring, so that the whole adjusting arm has good sealing effect, and the service life of the adjusting arm can be greatly prolonged because the sediment and dust are prevented from entering the adjusting arm and the phenomena of rust and corrosion in the adjusting arm are not caused.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a seal structure of adjustment arm, includes adjustment arm casing (1), worm wheel (2) and worm (3), its characterized in that: the novel adjustable arm comprises an adjusting arm shell body (1), and is characterized in that a worm hole (15) is formed in the side face of the adjusting arm shell body (1), a worm wheel hole (16) is longitudinally formed in the adjusting arm shell body (1), a worm wheel (2) is arranged in the worm wheel hole (16), a worm (3) connected with the worm wheel (2) in a meshed mode is arranged in the worm hole (15), one end, outside the adjusting arm shell body (1), of the worm (3) is provided with a nut (32), a dustproof pad (31) is arranged between the nut (32) and the side face of the adjusting arm shell body (1), the dustproof pad (31) is in butt joint with the side face of the adjusting arm shell body (1), concave portions (11) are formed in the upper surface and the lower surface of the adjusting arm shell body (1), a plurality of first screw holes (12) are formed in the concave portions (11), and a rear dustproof cover plate (4) is arranged on the concave portions (11).
2. The seal structure of an adjustment arm according to claim 1, wherein: be provided with on worm (3) with worm wheel (2) meshing portion (35) of being connected, be located the meshing portion (35) outside inside set up link chamber (14) that link up with worm hole (15) of adjusting arm casing (1), be located on worm (3) at link chamber (14) both ends all be provided with bearing (34), worm (3) are connected with worm hole (15) support through bearing (34) be provided with sealing washer (33) on worm (3) near bearing (34), two sealing washer (33) are located side one side that two bearings (34) are on the back of the body respectively.
3. The seal structure of an adjusting arm according to claim 2, wherein: the outer surface of the sealing ring (33) is provided with a clamping strip (331), the clamping strip (331) is an annular clamping strip, and the clamping strip (331) can be inserted into the inner surface of the worm hole (15).
4. The seal structure of an adjusting arm according to claim 2, wherein: the sealing ring (33) is made of polytetrafluoroethylene.
5. The seal structure of an adjustment arm according to claim 1, wherein: the dustproof cover plate (4) is provided with a plurality of second screw holes (42) corresponding to the first screw holes (12) arranged on the concave parts, the dustproof cover plate (4) is provided with first through holes (43) corresponding to the worm wheel holes (16), the dustproof cover plate (4) arranged outside the first through holes (43) is provided with a round dustproof table (41) which can be inserted into the worm wheel holes (16), and the dustproof cover plate (4) arranged outside the round dustproof table (41) is provided with a rubber pad (44) matched with the dustproof cover plate (4).
6. The seal structure of an adjustment arm of claim 5, wherein: a plurality of third screw holes (46) corresponding to the second screw holes (42) are formed in the rubber pad (44), and a second through hole (45) for the round dust-proof table (41) to pass through is formed in the rubber pad (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322360495.6U CN221003697U (en) | 2023-08-31 | 2023-08-31 | Sealing structure of adjusting arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322360495.6U CN221003697U (en) | 2023-08-31 | 2023-08-31 | Sealing structure of adjusting arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221003697U true CN221003697U (en) | 2024-05-24 |
Family
ID=91090087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322360495.6U Active CN221003697U (en) | 2023-08-31 | 2023-08-31 | Sealing structure of adjusting arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221003697U (en) |
-
2023
- 2023-08-31 CN CN202322360495.6U patent/CN221003697U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |