CN215333965U

CN215333965U - Thrust bearing for automobile steering knuckle

Info

Publication number: CN215333965U
Application number: CN202121395405.1U
Authority: CN
Inventors: 高峰
Original assignee: Xiangyang Tangfu Electromechanical Technology Co ltd
Current assignee: Xiangyang Tangfu Electromechanical Technology Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-28
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a thrust bearing for an automobile steering knuckle, which relates to the technical field of bearings and comprises a shell, wherein sealing grooves are formed in the upper surface and the lower surface of the shell, a first sealing mechanism is arranged on the inner wall of each sealing groove, one side, far away from the sealing grooves, of each first sealing mechanism is arranged on one side of an L-shaped ring, a limiting sealing mechanism is arranged on the inner side curved surface of the L-shaped ring, and a first ball is arranged on the inner side curved surface, far away from the L-shaped ring, of each limiting sealing mechanism. According to the utility model, the first sealing protection is carried out on the first ball in the middle of the thrust bearing through the third sealing ring in the limiting sealing mechanism, and the second sealing treatment to the middle of the thrust bearing is realized through the first sealing mechanism connected between the L-shaped ring and the shell and the connecting mechanism between the upper L-shaped ring and the lower L-shaped ring, so that the sealing effect of the thrust bearing is improved, and the problem that the thrust bearing fails prematurely due to the sealing difference is reduced.

Description

Thrust bearing for automobile steering knuckle

Technical Field

The utility model relates to the technical field of bearings, in particular to a thrust bearing for an automobile steering knuckle.

Background

The thrust bearing mainly comprises a shell, a fixed ring and a movable ring which are coaxially arranged in the shell, and rolling bodies arranged between the fixed ring and the movable ring.

The existing thrust bearing has poor sealing effect and is easy to cause early failure of sealing; the patent with the application number of CN201720466217.0 discloses a car knuckle thrust bearing, and it is equipped with annular oil blanket through the last border cover of shell, and the inside wall of annular oil blanket is closely filled up and is established between shell and stationary ring, and the top of annular oil blanket sets up the annular groove assorted seal lip with front axle connecting portion lower extreme terminal surface, comes to carry out the whole seal to knuckle thrust bearing, but this thrust bearing's leakproofness is not enough.

Therefore, the thrust bearing for the automobile steering knuckle solves the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to make up the defects of the prior art and provides a thrust bearing for an automobile steering knuckle.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a thrust bearing for steering knuckle, includes the shell, the seal groove has all been seted up to the upper and lower surface of shell, the inner wall of seal groove is provided with first sealing mechanism, one side that first sealing mechanism kept away from the seal groove sets up the one side at L type circle, the inboard curved surface of L type circle is provided with spacing sealing mechanism, the inboard curved surface that L type circle one side was kept away from to spacing sealing mechanism is provided with first ball, the outside curved surface sliding connection of first ball has the spacing collar, the outside circle of spacing collar is provided with limiting mechanism, one side of spacing collar inboard circle is provided with coupling mechanism, one side that coupling mechanism kept away from the spacing collar is provided with the inner circle, the outside curved surface of inner circle and the inboard circle sliding connection of L type circle.

Further, first sealing mechanism includes first sealing washer, a side surface of first sealing washer and the inside one side fixed surface of seal groove are connected, a side fixed surface of keeping away from the seal groove inner wall of first sealing washer is connected with first L type ring, one side of first L type ring and one side fixed connection of seal groove inner wall.

Further, one side fixedly connected with second sealing washer of seal groove is kept away from to first L type ring, the inner wall fixed connection of one side and L type ring that first L type ring was kept away from to the second sealing washer, a side surface of L type ring inside is connected with a side surface fixed connection of first L type ring, the outside curved surface fixedly connected with second L type ring of first L type ring.

Furthermore, spacing sealing mechanism includes the retainer plate, the equal fixedly connected with third sealing washer of retainer plate inboard circle and outside circle, inboard circle one side of third sealing washer and the inboard curved surface fixed connection of L type circle, the outer lane one side of third sealing washer and the inboard curved surface fixed connection of shell.

Further, coupling mechanism includes the go-between, the outside curved surface fixed connection of the inside circle of go-between and inner circle, the outside circle of go-between and the inside circle fixed connection of spacing collar, the equal fixedly connected with swivel becket in upper and lower surface of go-between, one side sliding connection that the swivel becket kept away from the go-between has the fourth sealing washer, one side fixed surface that the swivel becket was kept away from to the fourth sealing washer is connected at a side surface of spacing inslot portion, one side of spacing groove and one side fixed surface of L type circle are connected.

Further, the limiting mechanism comprises a fixing ring, the inner side ring of the fixing ring is fixedly connected with the outer side ring of the limiting ring, the outer side ring of the fixing ring is meshed with the limiting ring, one side of the limiting ring, far away from the fixing ring, is slidably connected with a fifth sealing ring, and the outer side curved surface of the fifth sealing ring is fixedly connected with one side of the inner part of the shell.

Furthermore, the upper surface and the lower surface of the limiting ring are both provided with sliding grooves, the inner sides of the sliding grooves are connected with second balls in a sliding mode, and the outer side curved surfaces of the second balls are connected with one side surface inside the shell in a sliding mode.

Furthermore, one side fixed surface of retainer plate is connected with the arc circle, the inboard curved surface sliding connection of arc circle has first ball, spacing hole has been seted up to one side surface that the retainer plate was kept away from to the arc circle.

Compared with the prior art, the thrust bearing for the automobile steering knuckle has the following beneficial effects:

according to the utility model, the first sealing protection is carried out on the first ball in the middle of the thrust bearing through the third sealing ring in the limiting sealing mechanism, and the second sealing treatment to the middle of the thrust bearing is realized through the first sealing mechanism connected between the L-shaped ring and the shell and the connecting mechanism between the upper L-shaped ring and the lower L-shaped ring, so that the sealing effect of the thrust bearing is improved, and the problem that the thrust bearing fails prematurely due to the sealing difference is reduced.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 3 according to the present invention.

In the figure: the sealing device comprises a shell 1, a sealing groove 2, a first sealing mechanism 3, a first sealing ring 301, a first L-shaped ring 302, a second sealing ring 303, a second L-shaped ring 304, a 4L-shaped ring, a limiting sealing mechanism 5, a fixing ring 501, a third sealing ring 502, an arc-shaped ring 503, a limiting hole 504, a limiting ring 6, a first ball 7, a connecting mechanism 8, a connecting ring 801, a rotating ring 802, a fourth sealing ring 803, an inner ring 9, a limiting groove 10, a limiting mechanism 11, a second ball 1101, a limiting ring 1102, a fifth sealing ring 1103, a fixing ring 1104 and a sliding groove 1105.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

The embodiment provides a thrust bearing for a steering knuckle, and the thrust bearing for the steering knuckle realizes forming two sealing lines to the thrust bearing middle part through a third sealing ring and a connecting mechanism and a first sealing mechanism in a limiting sealing mechanism, so that the sealing effect of the thrust bearing is improved, and the purpose of premature failure of the thrust bearing due to poor sealing is reduced.

Referring to fig. 1, the thrust bearing for the automobile steering knuckle comprises a housing 1, wherein the upper surface and the lower surface of the housing 1 are both provided with a sealing groove 2, the inner wall of the sealing groove 2 is provided with a first sealing mechanism 3, and one side, far away from the sealing groove 2, of the first sealing mechanism 3 is arranged on one side of an L-shaped ring 4.

Referring to fig. 2, 3, and 4, in this embodiment, the first sealing mechanism 3 includes a first sealing ring 301, a side surface of the first sealing ring 301 is fixedly connected to a side surface inside the sealing groove 2, a side surface of the first sealing ring 301 away from an inner wall of the sealing groove 2 is fixedly connected to a first L-shaped ring 302, a side of the first L-shaped ring 302 is fixedly connected to a side of the inner wall of the sealing groove 2, a side of the first L-shaped ring 302 away from the sealing groove 2 is fixedly connected to a second sealing ring 303, a side of the second sealing ring 303 away from the first L-shaped ring 302 is fixedly connected to an inner wall of the L-shaped ring 4, a side surface inside the L-shaped ring 4 is fixedly connected to a side surface of the first L-shaped ring 302, and an outer curved surface of the first L-shaped ring 302 is fixedly connected to a second L-shaped ring 304.

In the utility model, the number of the L-shaped rings 4 is set to be two, the two L-shaped rings 4 are distributed in an up-and-down symmetrical mode about the middle of the thrust bearing, the surface of the second L-shaped ring 304 positioned at the lowest part is coplanar with the surface of one side of the L-shaped ring 4 positioned at the lowest part, the diameter of the outer curved surface of the outer ring of the second L-shaped ring 304 is the same as that of the outer curved surface of the outer ring of the shell 1, and the first sealing ring 301 and the second sealing ring 303 are both in static sealing.

Through the transition of second L type ring 304, make thrust bearing's outside surface more smooth, connect between L type ring 4 and the shell 1 through first sealing washer 301 and second sealing washer 303 simultaneously, make to form one between L type ring 4 and the shell 1 sealed, realize sealed effect to thrust bearing.

Referring to fig. 2, the inner side curved surface of the L-shaped ring 4 is provided with a limiting sealing mechanism 5, which includes a fixing ring 501, the inner side ring and the outer side ring of the fixing ring 501 are both fixedly connected with a third sealing ring 502, one side of the third sealing ring 502 of the inner side ring is fixedly connected with the inner side curved surface of the L-shaped ring 4, and one side of the third sealing ring 502 of the outer ring is fixedly connected with the inner side curved surface of the housing 1. Wherein, there are two third sealing washer 502 quantity, and all adopt static seal.

Through setting up third sealing washer 502 at retainer plate 501 inside circle and outside circle, it is sealed at the junction that the retainer plate 501 inserted in shell 1 and L type circle 4, realizes forming sealed effect one inside thrust bearing, is convenient for improve thrust bearing and seals the effect.

In addition, referring to fig. 2, 3 and 4, a first ball 7 is arranged on the inner curved surface of the limit sealing mechanism 5 on the side far away from the L-shaped ring 4; one side fixed surface of retainer plate 501 is connected with arc circle 503, and arc circle 503's inboard curved surface sliding connection has first ball 7, and arc circle 503 keeps away from one side surface of retainer plate 501 and has seted up spacing hole 504.

Specifically, the number of the arc rings 503 is set to be two, two arc rings 503 are symmetrically distributed about the middle of the thrust bearing, the number of the limiting holes 504 is several, and the angle between two adjacent limiting holes 504 is 30 degrees.

First ball 7 is wrapped by upper and lower two arc rings 503, and a track for limiting up-and-down movement of first ball 7 is formed at the same time, so that first ball 7 rotates inside arc rings 503, and stability of first ball 7 during rotation is improved.

The outside curved surface sliding connection of first ball 7 has spacing collar 6, and the outside circle of spacing collar 6 is provided with limiting mechanism 11, keeps away from one side contact of retainer plate 501 through the upper and lower surface of spacing collar 6 and arc 503, improves the precision to the restriction of first ball 7, plays the effect that supports spacing collar 6 simultaneously.

Referring to fig. 2, 3 and 4, in an embodiment, the limiting mechanism 11 includes a fixing ring 1104, an inner ring of the fixing ring 1104 is fixedly connected with an outer ring of the position-limiting ring 6, an outer ring of the fixing ring 1104 is engaged with a limiting ring 1102, a side of the limiting ring 1102 away from the fixing ring 1104 is slidably connected with a fifth sealing ring 1103, and an outer curved surface of the fifth sealing ring 1103 is fixedly connected with a side surface of the inside of the housing 1.

The fifth sealing ring 1103 adopts rotary sealing, a trapezoidal groove is formed in one side of the limiting ring 1102, and a trapezoidal bump is matched with the limiting ring 1102 on one side of the fixing ring 1104; the fixing ring 1104 is fixedly connected with the spacing ring 6, and the limiting ring 1102 and the fixing ring 1104 are meshed and connected with each other, so that the stability of the spacing ring 6 during rotation is maintained.

Referring to fig. 2, 3 and 4, in the embodiment, the upper and lower surfaces of the limit ring 1102 are respectively provided with a sliding groove 1105, the inner side of the sliding groove 1105 is slidably connected with a second ball 1101, and the outer curved surface of the second ball 1101 is slidably connected with one side surface of the inside of the housing 1.

Two groups of second balls 1101 are arranged, the two groups of second balls 1101 are symmetrically distributed around the middle part of the limiting ring 6, and the limiting ring 6 is positioned in the middle part of the thrust bearing; the friction when the confinement rings 1102 rotate is reduced by the two sets of second balls 1101, and the stability of the confinement rings 1102 is improved.

Referring to fig. 2, 3 and 4, a connecting mechanism 8 is arranged on one side of the inner side ring of the limiting ring 6, an inner ring 9 is arranged on one side of the connecting mechanism 8 far away from the limiting ring 6, and the outer side curved surface of the inner ring 9 is connected with the inner side ring of the L-shaped ring 4 in a sliding manner; specifically, the connecting mechanism 8 includes a connecting ring 801, an inner side ring of the connecting ring 801 is fixedly connected with an outer side curved surface of the inner ring 9, an outer side ring of the connecting ring 801 is fixedly connected with an inner side ring of the spacing ring 6, upper and lower surfaces of the connecting ring 801 are fixedly connected with a rotating ring 802, one side of the rotating ring 802 away from the connecting ring 801 is slidably connected with a fourth sealing ring 803, one side of the fourth sealing ring 803 away from the rotating ring 802 is fixedly connected with one side surface of the inside of the spacing groove 10, and one side of the spacing groove 10 is fixedly connected with one side surface of the L-shaped ring 4.

Here, the fourth sealing ring 803 is a rotary seal, and the number of the fourth sealing ring 803 is two and is distributed up and down symmetrically about the middle of the thrust bearing.

The upper L-shaped ring 4 and the lower L-shaped ring 4 are kept in sealing connection through the fourth sealing ring 803, so that the sealing effect of the thrust bearing is kept, the limiting ring 6 and the outer inner ring 9 are connected through the connecting mechanism 8, and meanwhile, the stabilizing effect is achieved when the limiting ring 6 rotates.

During the specific use, the spacing sealing mechanism 5 that sets up through both sides about first ball 7 earlier, spacing sealing mechanism 5 inboard and outside are passed through third sealing washer 502 and are connected with the inboard and L type circle 4 of shell 1, the realization is sealed to the inside first way of thrust bearing, L type circle 4 and shell 1 are connected through first sealing mechanism 3, first sealing washer 301 and second sealing washer 303 through the both sides setting of first L type circle 302 in the first sealing mechanism 3, realize the sealing connection between shell 1 and the L type circle 4, the realization is sealed to the inside second of thrust bearing, reach the effect that improves thrust bearing's leakproofness, connect through coupling mechanism 8 between two upper and lower L type circles 4 simultaneously, coupling mechanism 8 carries out sealing connection through fourth sealing washer 803, further optimize thrust bearing's sealed effect.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. Thrust bearing for automobile steering knuckle includes shell (1), its characterized in that: the upper surface and the lower surface of the shell (1) are both provided with a sealing groove (2), the inner wall of the sealing groove (2) is provided with a first sealing mechanism (3), one side of the first sealing mechanism (3) far away from the sealing groove (2) is arranged on one side of the L-shaped ring (4), a limiting sealing mechanism (5) is arranged on the inner side curved surface of the L-shaped ring (4), a first ball (7) is arranged on the inner side curved surface of one side, far away from the L-shaped ring (4), of the limiting sealing mechanism (5), the outer side curved surface of the first ball (7) is connected with a spacing ring (6) in a sliding way, a limiting mechanism (11) is arranged on the outer side ring of the limiting ring (6), a connecting mechanism (8) is arranged on one side of the inner side ring of the limiting ring (6), an inner ring (9) is arranged on one side of the connecting mechanism (8) far away from the limiting ring (6), the outer side curved surface of the inner ring (9) is connected with the inner side ring of the L-shaped ring (4) in a sliding mode.

2. The thrust bearing for an automobile knuckle according to claim 1, characterized in that: first sealing mechanism (3) include first sealing washer (301), a side surface and the inside one side fixed surface of seal groove (2) of first sealing washer (301) are connected, one side fixed surface of keeping away from seal groove (2) inner wall of first sealing washer (301) is connected with first L type ring (302), one side of first L type ring (302) and one side fixed connection of seal groove (2) inner wall.

3. The thrust bearing for an automobile knuckle according to claim 2, characterized in that: one side fixedly connected with second sealing washer (303) of seal groove (2) are kept away from to first L type ring (302), the inner wall fixed connection of one side and L type ring (4) of first L type ring (302) is kept away from in second sealing washer (303), one side surface of L type ring (4) inside is connected with one side fixed surface of first L type ring (302), the outside curved surface fixedly connected with second L type ring (304) of first L type ring (302).

4. The thrust bearing for an automobile knuckle according to claim 1, characterized in that: spacing sealing mechanism (5) include retainer plate (501), the equal fixedly connected with third sealing washer (502) of retainer plate (501) inboard circle and outside circle, inboard circle one side of third sealing washer (502) and the inboard curved surface fixed connection of L type circle (4), the outer lane one side of third sealing washer (502) and the inboard curved surface fixed connection of shell (1).

5. The thrust bearing for an automobile knuckle according to claim 1, characterized in that: the connecting mechanism (8) comprises a connecting ring (801), the inner side ring of the connecting ring (801) is fixedly connected with the outer side curved surface of the inner ring (9), the outer side ring of the connecting ring (801) is fixedly connected with the inner side ring of the limiting ring (6), and the upper surface and the lower surface of the connecting ring (801) are fixedly connected with rotating rings (802).

6. The thrust bearing for an automobile steering knuckle according to claim 5, characterized in that: one side of the rotating ring (802), which is far away from the connecting ring (801), is connected with a fourth sealing ring (803) in a sliding mode, one side surface of the fourth sealing ring (803), which is far away from the rotating ring (802), is fixedly connected to one side surface of the inner portion of the limiting groove (10), and one side of the limiting groove (10) is fixedly connected with one side surface of the L-shaped ring (4).

7. The thrust bearing for an automobile knuckle according to claim 1, characterized in that: limiting mechanism (11) are including solid fixed ring (1104), the outside circle fixed connection of the inboard circle of solid fixed ring (1104) and spacing collar (6), the outside circle meshing of solid fixed ring (1104) is connected with limit ring (1102), one side sliding connection that solid fixed ring (1104) was kept away from in limit ring (1102) has fifth sealing washer (1103), the outside curved surface and the inside one side fixed surface of shell (1) of fifth sealing washer (1103) are connected.

8. The thrust bearing for an automobile steering knuckle according to claim 7, characterized in that: the upper surface and the lower surface of the limiting ring (1102) are both provided with sliding grooves (1105), the inner sides of the sliding grooves (1105) are connected with second balls (1101) in a sliding mode, and the outer side curved surfaces of the second balls (1101) are connected with one side surface of the inner portion of the shell (1) in a sliding mode.

9. The thrust bearing for an automobile steering knuckle according to claim 4, characterized in that: one side fixed surface of retainer plate (501) is connected with arc circle (503), the inboard curved surface sliding connection of arc circle (503) has first ball (7), spacing hole (504) have been seted up to one side surface that retainer plate (501) was kept away from in arc circle (503).