Axial position self-adjusting bearing set

Abstract

The utility model relates to the field of bearings, and in particular to an axial position self-adjusting bearing group, comprising two bearing bodies arranged at intervals, the bearing body comprising an outer sleeve and an inner sleeve, the outer sleeve and the inner sleeve being rotatably connected, a first step being arranged on the outer sleeve, the first step comprising a first wave surface, a second wave surface being arranged on the end surface of the inner sleeve, the first wave surface and the second wave surface being consistent in shape, and the first wave surface and the second wave surface not being in contact, an adjustment ring being slidably arranged on the inner sleeve, the adjustment ring comprising a rotating ring and a rubber ring, the rotating ring being fixedly connected to the rubber ring, the outer sleeve being further provided with a second step, and the adjustment ring being in contact with the side wall surface of the second step. The utility model arranges the adjustment ring, the first wave surface and the second wave surface, so that when a radial displacement occurs, the rotating shaft can be returned to its original position through the elasticity of the rubber ring and the contact between the first wave surface and the second wave surface.

Description

Technical Field

[0001] The utility model relates to the field of bearings, in particular to an axial position self-adjusting bearing group. Background Art

[0002] Self-lubricating sliding bearings are a common type of bearing. As a sliding bearing, it does not contain rolling parts such as rollers. It relies on the oil film formed in the gap between the bearing and the shaft to achieve self-lubrication, smooth rotation, and carry radial force. For sliding bearings, they mainly carry radial force, which can only be borne by the static friction between the bearing and the shaft. Once the radial force exceeds the static friction limit, the position between the bearing and the shaft will change, affecting its use.

[0003] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an axial position self-adjusting bearing group. The utility model is achieved through the following technical solutions:

[0005] An axial position self-adjusting bearing group includes two bearing bodies arranged at intervals, the bearing body includes an outer sleeve and an inner sleeve, the outer sleeve and the inner sleeve are rotatably connected, the outer sleeve is provided with a first step, the first step includes a first wave surface, the inner sleeve end surface is provided with a second wave surface, the first wave surface and the second wave surface have the same shape, and the first wave surface and the second wave surface do not contact, the inner sleeve is also slidably provided with an adjustment ring, the adjustment ring includes a rotating ring and a rubber ring, the rotating ring is fixedly connected to the rubber ring, the outer sleeve is also provided with a second step, and the adjustment ring contacts the side wall surface of the second step.

[0006] In the above technical solution: the bearing body is used to realize the structure; the setting of the outer sleeve and the inner sleeve enables the two to rotate relative to each other, thereby realizing the basic function of the bearing; the first step is used to set the first wave surface; the first wave surface and the second wave surface cooperate to achieve return to the original position when a small axial displacement occurs; the adjustment ring is used to fix the position of the shaft, so that the shaft can be in its original position when no radial force is applied.

[0007] The utility model is further configured as follows: a connecting ring groove is arranged on the outer wall surface of the inner sleeve, and the adjusting ring is arranged in the connecting ring groove.

[0008] In the above technical solution: the connecting ring groove is used to limit the extreme position of the adjusting ring.

[0009] The utility model is further configured as follows: at least one sliding groove is provided on the bottom surface of the connecting ring groove, at least one sliding block is provided on the rotating ring, the sliding block is slidably arranged with the sliding groove, and the direction of the sliding groove is consistent with the direction of the central axis of the inner sleeve.

[0010] In the above technical solution: the sliding groove and the sliding block cooperate to realize the sliding of the rotating ring in the axial direction of the inner sleeve.

[0011] The utility model is further configured as follows: a limiting ring is fixedly arranged on the inner sleeve, the limiting ring is arranged on one side of the connecting ring groove, and the outer diameter of the limiting ring is consistent with the outer diameter of the inner sleeve.

[0012] In the above technical solution: the limiting ring is used for adjusting the installation of the ring.

[0013] The utility model is further configured as follows: the two bearing bodies are symmetrically arranged.

[0014] In the above technical solution: the two bearing bodies are symmetrically arranged, so that self-adjustment can be achieved no matter which side the radial force is directed to.

[0015] The utility model is further configured as follows: the first wave surface is a toroidal surface, and the central axis of the first wave surface coincides with the rotation axis of the inner sleeve.

[0016] The utility model is further configured as follows: the second wave surface is a toroidal surface, and the central axis of the second wave surface coincides with the rotation axis of the outer sleeve.

[0017] In the above technical solution: the second wave surface can be aligned with the first wave surface.

[0018] The utility model discloses an axial position self-adjusting bearing group, compared with the prior art:

[0019] 1. The utility model sets an adjustment ring, a first wave surface and a second wave surface, so that when the rotating shaft undergoes radial displacement, it can return to its original position through the elasticity of the rubber ring and the contact between the first wave surface and the second wave surface; 2. The utility model also sets a rotating ring and a rubber ring, so that when no displacement occurs, the first wave surface and the second wave surface do not contact each other, thereby avoiding excessive resistance and affecting the rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the bearing body of the utility model;

[0021] Figure 2 It is a cross-sectional view of the bearing body of the utility model;

[0022] Figure 3 A three-dimensional diagram of the jacket of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the inner sleeve of the utility model;

[0024] Figure 5 It is a three-dimensional diagram of the limiting ring of the utility model;

[0025] Figure 6 It is a schematic diagram of the utility model after installation.

[0026] The corresponding component names represented by the numbers and letters in the figure are: 10-bearing body; 20-outer sleeve; 201-first step; 201a-first wave surface; 202-second step; 30-inner sleeve; 301-second wave surface; 302-connecting ring groove; 302a-sliding groove; 303-limiting ring; 40-adjusting ring; 401-rotating ring; 401a-sliding block; 402-rubber ring. DETAILED DESCRIPTION

[0027] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0028] like Figure 1-6 As shown, an axial position self-adjusting bearing group proposed by the utility model comprises two bearing bodies 10 arranged at intervals, the bearing body 10 comprises an outer sleeve 20 and an inner sleeve 30, the outer sleeve 20 and the inner sleeve 30 are rotatably connected, the outer sleeve 20 is provided with a first step 201, the first step 201 comprises a first wave surface 201a, the end surface of the inner sleeve 30 is provided with a second wave surface 301, the first wave surface 201a and the second wave surface 301 have the same shape, and the first wave surface 201a and the second wave surface 301 do not contact, the inner sleeve 30 is also slidably provided with an adjustment ring 40, the adjustment ring 40 comprises a rotating ring 401 and a rubber ring 402, the rotating ring 401 is fixedly connected to the rubber ring 402, the outer sleeve 20 is also provided with a second step 202, and the adjustment ring 40 contacts the side wall surface of the second step 202. Wherein, the first wave surface 201a comprises a concave portion and a convex portion, and the concave portion and the convex portion are arranged alternately.

[0029] like Figure 1-6 As shown, the utility model proposes an axial position self-adjusting bearing group, the outer wall surface of the inner sleeve 30 is provided with a connecting ring groove 302, and the adjusting ring 40 is arranged in the connecting ring groove 302. The length of the adjusting ring 40 is smaller than the width of the connecting ring groove 302.

[0030] like Figure 1-6As shown, the utility model proposes an axial position self-adjusting bearing group, at least one sliding groove 302a is provided on the bottom surface of the connecting ring groove 302, at least one sliding block 401a is provided on the rotating ring 401, the sliding block 401a is slidably arranged with the sliding groove 302a, and the direction of the sliding groove 302a is consistent with the direction of the central axis of the inner sleeve 30. Preferably, the number of the sliding grooves 302a is eight; the number of the sliding blocks 401a is consistent with the number of the sliding grooves 302a.

[0031] like Figure 1-6 As shown, the utility model proposes an axial position self-adjusting bearing group, and a limit ring 303 is fixedly arranged on the inner sleeve 30. The limit ring 303 is arranged on one side of the connecting ring groove 302, and the outer diameter of the limit ring 303 is consistent with the outer diameter of the inner sleeve 30.

[0032] like Figure 1-6 As shown, the utility model proposes an axial position self-adjusting bearing group, and the two bearing bodies 10 are symmetrically arranged.

[0033] like Figure 1-6 As shown, the utility model proposes an axial position self-adjusting bearing group, the first wave surface 201a is a ring surface, and the central axis of the first wave surface 201a coincides with the rotation axis of the inner sleeve 30.

[0034] like Figure 1-6 As shown, the utility model proposes an axial position self-adjusting bearing group, the second wave surface 301 is a ring surface, and the central axis of the second wave surface 301 coincides with the rotation axis of the outer sleeve 20.

[0035] The working principle of the utility model is:

[0036] a) Install and fix the rotating shaft and the inner sleeve;

[0037] b) Fix the outer sleeve to the bearing seat;

[0038] c) Install the inner sleeve and the outer sleeve together and fix the limit ring;

[0039] d) Install another bearing body on the rotating shaft according to steps a)-c);

[0040] e) When the rotating shaft is not subjected to radial force, the first wave surface and the second wave surface are not in contact, and the rubber ring is not deformed;

[0041] f) When the rotating shaft is subjected to radial force causing axial displacement;

[0042] g) Due to the obstruction of the second step, the relative position between the rotating ring on the inner sleeve and the outer sleeve on one side cannot be changed;

[0043] h) The rotating ring slides with the inner sleeve, causing the rubber ring to deform;

[0044] i) At the same time, the first wave surface and the second wave surface of the first bearing body are in contact, and a return thrust is generated with the rotation; j) the inner sleeve and the rotating shaft return to their original positions.

[0045] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. An axial position self-adjusting bearing assembly, characterized in that: The invention comprises two bearing bodies (10) arranged at intervals, wherein the bearing body (10) comprises an outer sleeve (20) and an inner sleeve (30), wherein the outer sleeve (20) and the inner sleeve (30) are rotatably connected, wherein a first step (201) is arranged on the outer sleeve (20), wherein the first step (201) comprises a first wave surface (201a), and wherein a second wave surface (301) is arranged on the end surface of the inner sleeve (30), wherein the first wave surface (201a) and the second wave surface (301) are The shapes of the first wave surface (201a) and the second wave surface (301) are consistent, and the first wave surface (201a) and the second wave surface (301) are not in contact. The inner sleeve (30) is also slidably provided with an adjustment ring (40), and the adjustment ring (40) comprises a rotating ring (401) and a rubber ring (402). The rotating ring (401) is fixedly connected to the rubber ring (402). The outer sleeve (20) is also provided with a second step (202), and the adjustment ring (40) is in contact with the side wall surface of the second step (202).

2. The axial position self-adjusting bearing assembly according to claim 1, characterized in that: A connecting ring groove (302) is provided on the outer wall surface of the inner sleeve (30), and the adjusting ring (40) is arranged in the connecting ring groove (302).

3. The axial position self-adjusting bearing assembly according to claim 2, characterized in that: At least one sliding groove (302a) is arranged on the bottom surface of the connecting ring groove (302), and at least one sliding block (401a) is arranged on the rotating ring (401). The sliding block (401a) is slidably arranged with the sliding groove (302a), and the direction of the sliding groove (302a) is consistent with the direction of the central axis of the inner sleeve (30).

4. The axial position self-adjusting bearing assembly according to claim 3, characterized in that: A limiting ring (303) is also fixedly arranged on the inner sleeve (30), the limiting ring (303) is arranged on one side of the connecting ring groove (302), and the outer diameter of the limiting ring (303) is consistent with the outer diameter of the inner sleeve (30).

5. The axial position self-adjusting bearing assembly according to claim 4, characterized in that: The two bearing bodies (10) are symmetrically arranged.

6. The axial position self-adjusting bearing assembly according to claim 5, characterized in that: The first wave surface (201a) is an annular surface, and the central axis of the first wave surface (201a) coincides with the rotation axis of the inner sleeve (30).

7. The axial position self-adjusting bearing assembly according to claim 6, characterized in that: The second wavy surface (301) is an annular surface, and the central axis of the second wavy surface (301) coincides with the rotation axis of the outer sleeve (20).

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