Automobile clutch release bearing

Abstract

The utility model discloses an automobile clutch release bearing, which belongs to the technical field of bearings, and comprises an outer cylinder, an inner cylinder, a plurality of rolling bodies, a limiting shell and a lubricating mechanism, the lubricating mechanism comprises an oil injection hole and two sealing rings, and the two sealing rings are arranged between the inner cylinder and the outer cylinder and are respectively positioned on two sides of the rolling bodies; the oil injection hole is formed in the side wall of the outer barrel and communicated with a cavity between the inner barrel and the outer barrel, and a plug is arranged on the oil injection hole. The two sealing rings are arranged between the inner cylinder and the outer cylinder and located on the two sides of the rolling body respectively, lubricating oil can be effectively prevented from leaking, external impurities can be effectively prevented from entering the bearing, and cleanliness of the interior of the bearing and the performance of the lubricating oil are kept; during oil injection, the plug can be pressed, then lubricating oil is smoothly injected into the oil storage cavity between the inner cylinder and the outer cylinder through the oil injection channel and the oil outlet, and when the plug is not pressed, the spring resets the plug, so that the oil outlet is isolated from the oil storage cavity by the inner plug disc, and the convenience of oil injection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing technical field, concretely relates to a kind of automobile clutch release bearing. BACKGROUND

[0002] Automobile release bearing is between clutch and transmission, and it is the key component of control clutch engagement and separation.When driver steps down clutch pedal, release bearing pushes away pressure disc and friction plate, and cut off engine power transmission, realize smooth gear shifting.Release bearing is subjected to high pressure and friction in clutch operation for a long time, and lack of lubrication can accelerate wear, resulting in shortened life.Therefore, it needs to be regularly supplemented lubrication. SUMMARY

[0003] In view of the above technical deficiencies, the utility model aims at providing a kind of automobile clutch release bearing, by setting oil hole and sealing ring, prevent lubricating oil from leaking out while it is convenient to inject lubricating oil into release bearing.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a kind of automobile clutch release bearing, comprising:

[0005] The inner side of the outer cylinder is provided with a first groove;

[0006] The inner cylinder is inserted into the outer cylinder, and a second groove is formed on the outer wall of the inner cylinder;

[0007] A plurality of rolling elements are arranged between the first groove and the second groove;

[0008] The limiting shell is covered on the outer side of the outer cylinder, and is used to limit the inner cylinder in the outer cylinder;

[0009] The lubricating mechanism comprises an oil hole and two sealing rings, the two sealing rings are arranged between the inner cylinder and the outer cylinder and are located on the two sides of the rolling element respectively, the oil hole is formed on the side wall of the outer cylinder and is communicated with the cavity between the inner cylinder and the outer cylinder, and a plug is arranged on the oil hole.

[0010] Preferably, a step is arranged in the oil hole, a hollow cylinder is screw-mounted in the oil hole, a convex edge is arranged on the end of the cylinder away from the inner cylinder, and a sealing pad is arranged on the cylinder between the convex edge and the step.

[0011] Preferably, the plug is slidingly mounted in the cylinder, the two ends of the plug extend out of the upper and lower ends of the cylinder respectively, an outward turning edge is arranged on the top of the plug, and an inner plug disc is arranged on the bottom of the plug for plugging the cylinder.

[0012] Preferably, a spring is arranged on the plug between the outward turning edge and the convex edge.

[0013] Preferably, an oil injection channel is formed in the plug, and an oil outlet is formed in one end of the plug close to the inner plug disc and communicates with the oil injection channel.

[0014] Preferably, the inner wall of the outer cylinder is stepped, and the first groove is formed in the inner wall with a larger diameter.

[0015] Preferably, the outer wall of the inner cylinder is provided with a convex ring, and the second groove is formed in the convex ring.

[0016] Preferably, two sealing rings are respectively sleeved on the inner cylinder at two ends of the convex ring, the outer cylinder abuts against one of the sealing rings via the convex ring, and the limiting shell abuts against the other sealing ring via the convex ring.

[0017] Preferably, one end of the inner cylinder protrudes out of the outer cylinder, and the other end is located inside the outer cylinder.

[0018] Preferably, the utility model also comprises a retainer which covers the side surface of the rolling body and is used for maintaining the spacing between the rolling bodies.

[0019] The utility model discloses the beneficial effect lies in:

[0020] The utility model discloses a lubricating mechanism which comprises an oil injection hole and two sealing rings, the oil injection hole is formed in the side wall of the outer cylinder and communicates with the cavity between the inner cylinder and the outer cylinder, lubricating oil can be conveniently injected into the cavity, good lubricating conditions are provided for the rolling bodies, friction of the rolling bodies in the movement process is reduced, wear is reduced, and the running efficiency and service life of the bearing are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0022] Figure 1 A left view perspective view of an automobile clutch release bearing is provided for the embodiments of the utility model.

[0023] Figure 2 A right view perspective view of the automobile clutch release bearing is provided for the embodiment of the utility model.

[0024] Figure 3 A top view of the automobile clutch release bearing is provided for the embodiment of the utility model.

[0025] Figure 4 For Figure 3 The sectional view at A-A.

[0026] Figure 5 For Figure 4 The local enlarged view at A.

[0027] Figure 6 A structure schematic view when the oil outlet is communicated with the oil storage cavity after the plug is pressed down in the automobile clutch release bearing provided by the embodiment of the utility model.

[0028] Mark explanation:

[0029] 1, outer cylinder, 2, inner cylinder, 3, rolling body, 4, limit shell, 5, oil injection hole, 6, sealing ring, 7, plug, 8, step, 9, cylinder body, 10, convex edge, 11, sealing pad, 12, outward flange, 13, inner plug disc, 14, spring, 15, oil injection channel, 16, oil outlet, 17, convex ring, 18, retainer. Specific implementation

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] Embodiment one:

[0032] As Figures 1 to 6 shown, the utility model embodiment one provides a kind of automobile clutch release bearing, including outer cylinder 1, inner cylinder 2, multiple rolling body 3, limit shell 4 and lubricating mechanism. Wherein the inner wall of outer cylinder 1 is ladder-shaped, and first recess is set on the inner wall with larger diameter thereof. Inner cylinder 2 is inserted into outer cylinder 1, and one end of inner cylinder 2 extends outside outer cylinder 1, and the other end is located in outer cylinder 1. In this way, when the yoke of differential mechanism is resisted on outer cylinder 1, it does not contact with inner cylinder 2. Convex ring 17 is provided on the outer wall of inner cylinder 2, and second recess is set on convex ring 17. Multiple rolling body 3 is installed between first recess and second recess and rolls, so that relative rolling between inner cylinder 2 and outer cylinder 1 can be realized.

[0033] As Figure 4As shown, the limiting shell 4 covers the outside of the outer cylinder 1. The shape of the limiting shell 4 is adapted to the shape of the outer cylinder 1, and the limiting shell 4 can tightly wrap around the circumferential surface of the outer cylinder 1, thereby firmly fixing it to the outer cylinder 1. The limiting shell 4 is also provided with a limiting part, which can abut against one side of the inner cylinder 2, restricting the inner cylinder 2 within the outer cylinder 1. This ensures the relative position stability between the inner cylinder 2 and the outer cylinder 1, prevents excessive axial or radial displacement of the inner cylinder 2 within the outer cylinder 1, and improves the reliability and service life of the bearing.

[0034] The lubrication mechanism of this invention includes an oil injection hole 5 and two sealing rings 6. The two sealing rings 6 are positioned between the inner cylinder 2 and the outer cylinder 1, respectively on both sides of the rolling element 3. The two sealing rings 6, together with the inner cylinder 2 and the outer cylinder 1, form an oil storage cavity, effectively preventing lubricating oil leakage and the entry of external impurities into the bearing, maintaining the cleanliness of the bearing interior and the performance of the lubricating oil. The two sealing rings 6 are respectively fitted onto the inner cylinder 2 at both ends of the convex ring 17. The outer cylinder 1, in conjunction with the convex ring 17, abuts against one of the sealing rings 6, and the limiting shell 4, in conjunction with the convex ring 17, abuts against the other sealing ring 6, further enhancing the sealing effect. The oil injection hole 5 is located on the side wall of the outer cylinder 1 and passes through the limiting shell 4. The oil injection hole 5 communicates with the oil storage cavity between the inner cylinder 2 and the outer cylinder 1, allowing lubricating oil to be conveniently injected into the oil storage cavity, providing good lubrication conditions for the rolling element 3, reducing friction during movement, reducing wear, and improving the bearing's operating efficiency and lifespan.

[0035] To prevent impurities from entering the oil storage chamber through the oil filling hole 5, a plug 7 is installed on the oil filling hole 5. During oil filling, the plug 7 can be manually pressed to allow lubricating oil to enter the cavity between the inner cylinder 2 and the outer cylinder 1 through the oil filling hole 5. When the plug 7 is not pressed, it seals the oil filling hole 5 under its own elasticity, preventing lubricating oil leakage.

[0036] Example 2:

[0037] Based on Embodiment 1, this utility model further optimizes the lubrication mechanism. For example... Figure 5 As shown, a step 8 is provided inside the oil filling hole 5, and a hollow cylinder 9 is threadedly installed inside the oil filling hole 5. A protruding edge 10 is fixed to the end of the cylinder 9 away from the inner cylinder 2, and a sealing gasket 11 is fitted on the cylinder 9 between the protruding edge 10 and the step 8. By threading the cylinder 9 into the oil filling hole 5 and using the sealing gasket 11 to seal the gap between the cylinder 9 and the inner wall of the oil filling hole 5, lubricating oil can only pass through the hollow part of the cylinder 9, providing conditions for the installation of the plug 7.

[0038] The plug 7 is slidably installed inside the cylinder 9, and the axial length of the plug 7 is greater than the axial length of the cylinder 9. Both ends of the plug 7 extend outwards from the upper and lower ends of the cylinder 9, respectively. The top of the plug 7 has an outwardly flanged edge 12, and the bottom has an inner plug plate 13 for sealing the cylinder 9. The plug 7 has an axially oriented oil inlet channel 15, and a transverse oil outlet 16 is located at the end of the oil inlet channel 15 near the inner dial. The diameter of the inner plug plate 13 is larger than the inner diameter of the hollow portion of the cylinder 9, so that the cylinder 9 is sealed when the inner plug plate 13 abuts against the bottom of the cylinder 9. When the inner plug plate 13 moves downwards, it disengages from the lower end of the cylinder 9, allowing the oil outlet 16 to connect with the oil storage chamber. At this time, lubricating oil can be injected into the oil inlet channel 15, and the lubricating oil can enter the oil storage chamber.

[0039] Example 3:

[0040] Based on Embodiments 1 and 2, this utility model, in order to make the oil filling operation more convenient, provides a spring 14 fitted on the plug 7 between the outer flange 12 and the convex edge 10. For example... Figure 6 As shown, during oil filling, pressing down on the plug 7 compresses the spring 14, causing the plug 7 to slide downwards and the inner plug plate 13 to move away from the oil outlet 16. Lubricating oil can then be smoothly injected into the oil storage chamber between the inner cylinder 2 and the outer cylinder 1 through the cylinder 9, the oil filling channel 15 inside the plug 7, and the oil outlet 16. When the plug 7 is not pressed down, the spring 14 returns to its original position and lifts the plug 7, causing the inner plug plate 13 to press against the bottom of the cylinder 9 again, isolating the oil outlet 16 from the oil storage chamber, preventing lubricating oil leakage, and improving the convenience of oil filling.

[0041] To improve the smoothness of the rotation of the rolling elements 3, this invention adds a cage 18. The cage 18 is located inside the oil reservoir and covers the sides of the rolling elements 3, maintaining the distance between the rolling elements 3 and ensuring that the rolling elements 3 will not collide or squeeze each other during operation, thereby improving the service life of the bearing.

[0042] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A release bearing for an automotive clutch, characterized in that, include: The outer cylinder has a first groove on its inner side; An inner cylinder is inserted into an outer cylinder, and a second groove is provided on the outer wall of the inner cylinder; Multiple rolling elements are disposed between the first groove and the second groove; The limiting shell, which covers the outside of the outer cylinder, is used to confine the inner cylinder within the outer cylinder; The lubrication mechanism includes an oil injection hole and two sealing rings. The two sealing rings are disposed between the inner cylinder and the outer cylinder and are located on both sides of the rolling element. The oil injection hole is opened on the side wall of the outer cylinder and communicates with the cavity between the inner cylinder and the outer cylinder. A plug is provided on the oil injection hole.

2. The automotive clutch release bearing as described in claim 1, characterized in that, The oil injection hole has a step inside, and a hollow cylinder is threaded into the oil injection hole. The end of the cylinder away from the inner cylinder has a protruding edge, and a sealing gasket is fitted on the cylinder between the protruding edge and the step.

3. The automotive clutch release bearing as described in claim 2, characterized in that, The plug is slidably installed inside the cylinder, with its two ends extending out of the upper and lower ends of the cylinder, respectively. The top of the plug is provided with an outward-flared edge, and the bottom of the plug is provided with an inner plug plate for sealing the cylinder.

4. The automotive clutch release bearing as described in claim 3, characterized in that, A spring is fitted onto the plug between the outward-facing flange and the convex flange.

5. The automotive clutch release bearing as described in claim 3, characterized in that, The plug has an oil injection channel inside, and an oil outlet connected to the oil injection channel is opened at one end of the plug near the inner plug plate.

6. The automotive clutch release bearing as described in claim 1, characterized in that, The inner wall of the outer cylinder is stepped, and the first groove is formed on the inner wall of the outer cylinder with a larger diameter.

7. The automotive clutch release bearing as described in claim 1, characterized in that, The outer wall of the inner cylinder is provided with a raised ring, and the second groove is formed on the raised ring.

8. The automotive clutch release bearing as described in claim 7, characterized in that, The two sealing rings are respectively fitted onto the inner cylinders at both ends of the convex ring. The outer cylinder cooperates with the convex ring to abut against one of the sealing rings, and the limiting shell cooperates with the convex ring to abut against the other sealing ring.

9. The automotive clutch release bearing as described in claim 1, characterized in that, One end of the inner cylinder extends out of the outer cylinder, and the other end is located inside the outer cylinder.

10. The automotive clutch release bearing as described in claim 1, characterized in that, It also includes a cage, which covers the sides of the rolling elements to maintain the spacing between the rolling elements.

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