Detachable maintenance type bearing

Abstract

The utility model provides a detachable maintenance type bearing, belongs to the field of thrust ball bearings, and aims to solve the problems that the whole bearing is inconvenient to detach and scatter, steel balls are burnt at high temperature due to insufficient lubrication, and the concentricity deviates. Load steel balls are connected to the top end face of the bearing bottom ring in a sliding mode, the load steel balls are rotationally connected into the bearing retainer in an annular array mode, the number of the load steel balls is twelve, the tops of the load steel balls are connected into the bottom end face of the bearing top ring in a sliding mode, and an outer protection ring is connected to the outer side wall of the bearing top ring in a threaded mode. According to the detachable maintenance type bearing, the flow guide ring grooves are formed in the side walls of the steel ball rolling grooves of the bearing retainer, so that when the load steel balls rotate, lubricating liquid attached to the surfaces of the load steel balls can circulate in the upper space and the lower space of the bearing retainer, and the lubricating effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thrust ball bearings, in particular to a detachable and maintainable bearing. Background Art

[0002] Thrust ball bearings are an important component widely used in the field of mechanical transmission. Thrust ball bearings are designed to withstand thrust loads when running at high speeds. They are composed of a washer-shaped ring with a raceway groove for the balls to roll on. This type of bearing can withstand axial loads but not radial loads. Existing thrust ball bearings usually adopt an integral structure. When running at high speeds, they are affected by centrifugal force and the cage, and it is extremely difficult for lubricating oil to adhere to the surface of the steel balls. As a result, the steel balls lack lubrication and have high temperature problems. Once a failure occurs or maintenance is required, the entire bearing often needs to be replaced due to the difficulty in disassembly, which will greatly affect the cost. In addition, as the steel balls wear, the bearings will have problems with different axes, which will affect the concentricity of the bearings. Utility Model Content

[0003] The purpose of the utility model is to provide a detachable and maintainable bearing to solve the problem proposed in the above background technology that the existing thrust ball bearings usually adopt an integral structure, are affected by centrifugal force and the retaining frame during high-speed operation, and it is extremely difficult for lubricating oil to adhere to the surface of the steel ball, so that the steel ball lacks lubrication and has a high temperature problem. In addition, once a failure occurs or maintenance is required, the entire bearing often needs to be replaced due to the difficulty in disassembly, which greatly affects the cost. In addition, as the steel ball wears, the bearing will have the problem of misalignment, thereby affecting the concentricity of the bearing during use.

[0004] The purpose and function of the removable and maintainable bearing of this utility model are achieved by the following specific technical means:

[0005] A detachable and maintainable bearing, wherein the detachable and maintainable bearing includes a bearing bottom ring; a load steel ball is slidably connected to the top end surface of the bearing bottom ring, and the load steel balls are rotatably connected to the bearing retainer in an annular array, there are twelve load steel balls in the annular array, the top of the load steel balls is slidably connected to the bottom end surface of the bearing top ring, and an outer protective ring is threadedly connected to the outer wall of the bearing top ring.

[0006] Furthermore, three concave bottom heat dissipation grooves are opened at medium distances on the bottom end surface of the bearing bottom ring, a concave bottom raceway groove is opened in the middle of the top end surface of the bearing bottom ring, a load steel ball is slidably connected to the top of the bottom raceway groove, an alignment protrusion is fixedly connected to the inner side of the top end surface of the bearing bottom ring, the alignment protrusion is annular, and an annular concave connecting ring groove is opened in the middle of the outer wall of the bearing bottom ring.

[0007] Furthermore, the bearing retainer is in the shape of a flat ring, and twelve steel ball rolling grooves are provided in a circular array in the upper and lower end faces of the bearing retainer, and eight concave guide ring grooves are provided in a circular array in the outer wall of the steel ball rolling groove, and load steel balls are rotatably connected in the steel ball rolling groove.

[0008] Furthermore, three concave top heat dissipation grooves are provided at medium distances on the top end surface of the bearing top ring, hexagonal concave adjustment connection holes are provided in two planes between the three top heat dissipation grooves on the top of the bearing top ring, and four groups of adjustment connection holes are provided in a circular array. An external connecting thread is provided in the outer wall of the bearing top ring, and a "Y"-shaped oil injection hole is provided at the bottom of the top heat dissipation groove of the bearing top ring, and four oil injection holes are provided in a circular array.

[0009] Furthermore, a concave top raceway groove is provided in the bottom end surface of the bearing top ring, and the top raceway groove is slidably connected to the top of the load steel ball. A fitting ring groove is provided at the bottom of the inner side wall of the bearing top ring, and the fitting ring groove and the alignment protrusion on the inner side of the top of the bearing bottom ring are slidably fitted, and the bottom end of the oil filling hole is provided between the top raceway groove and the fitting ring groove.

[0010] Furthermore, an internal connecting thread is provided at the top of the inner wall of the outer protective ring, which is connected to the external connecting thread of the outer wall of the bearing top ring. A fitting ring convex is fixedly connected to the bottom of the inner wall of the outer protective ring, and the fitting ring convex is slidably connected to the connecting ring groove of the bearing bottom ring.

[0011] The utility model provides a detachable and maintainable bearing, which has the following beneficial effects:

[0012] 1. A guide ring groove is provided on the side wall of the steel ball rolling groove of the bearing retainer, so that when the load steel ball rotates, the lubricating fluid attached to the surface of the load steel ball can circulate in the upper and lower spaces of the bearing retainer, so as to further improve the lubrication effect. A hexagonal concave adjustment connection hole is provided in the top plane of the bearing top ring, so that when the bearing is repaired, the position of the bearing top ring can be fixed with a tool to prevent the bearing top ring from rotating arbitrarily. The bearing top ring is slidably fitted with the alignment protrusion on the inner side of the top of the bearing bottom ring through the fitting ring groove and the bearing bottom ring, thereby avoiding the problem of misaligned rotation of the bearing top ring and the bearing bottom ring, so as to improve the stability of the bearing during rotation. In addition, the "Y"-shaped oil filling hole provided in the bearing top ring can more conveniently determine the filling amount when adding lubricating oil.

[0013] 2. The outer protective ring is connected to the outer connecting thread of the outer wall of the bearing top ring through the inner connecting thread, and the fitting ring convex at the bottom of the inner wall of the outer protective ring is slidably connected to the connecting ring groove of the bearing bottom ring, so that the bearing top ring and the bearing bottom ring are connected from the outside, which further improves the concentricity without affecting the convenience of disassembly of the bearing top ring and the bearing bottom ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the shaft side structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the overall cutaway structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the bearing bottom ring, bearing retainer and load steel ball of the utility model;

[0018] Figure 5 This is a schematic diagram of the cross-section structure of the bearing bottom ring of the utility model;

[0019] Figure 6 This is a schematic diagram of the cross-section structure of the bearing top ring of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0021] 1. Bearing bottom ring; 101. Bottom heat dissipation groove; 102. Bottom raceway groove; 103. Alignment protrusion; 104. Connecting ring groove; 2. Bearing retainer; 201. Steel ball rolling groove; 202. Guide ring groove; 3. Load steel ball; 4. Bearing top ring; 401. Top heat dissipation groove; 402. Top raceway groove; 403. Matching ring groove; 404. Oil filling hole; 405. Adjustment connection hole; 406. External connecting thread; 5. Outer protective ring; 501. Internal connecting thread; 502. Matching ring protrusion. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. Example 1:

[0023] As attached Figure 1 To the attached Figure 6 As shown:

[0024] The utility model provides a detachable and maintainable bearing, comprising: a bearing bottom ring 1; a load steel ball 3 is slidably connected to the top end surface of the bearing bottom ring 1, the load steel ball 3 is rotatably connected to the bearing retainer 2 in an annular array, and there are twelve load steel balls 3 in an annular array. The top of the load steel ball 3 is slidably connected to the bottom end surface of the bearing top ring 4, and an outer protective ring 5 is threadedly connected to the outer wall of the bearing top ring 4. Three concave bottom heat dissipation grooves 101 are opened at an intermediate distance on the bottom end surface of the bearing bottom ring 1, a concave bottom raceway groove 102 is opened in the middle of the top end surface of the bearing bottom ring 1, and the load steel ball 3 is slidably connected to the top of the bottom raceway groove 102. The inner side of the top end surface of the bearing bottom ring 1 is fixedly connected to an alignment protrusion 103, and the alignment protrusion 103 is annular. The outer wall of the bearing bottom ring 1 An annular concave connecting ring groove 104 is opened in the middle, three concave top heat dissipation grooves 401 are opened at a medium distance on the top end face of the bearing top ring 4, and a concave top raceway groove 402 is opened in the bottom end face of the bearing top ring 4. The top raceway groove 402 is slidably connected to the top of the load steel ball 3. The specific function is to open three annular bottom heat dissipation grooves 101 and top heat dissipation grooves 401 at equal distances at the bottom of the bearing bottom ring 1 and the top of the bearing top ring 4 to improve the heat dissipation effect of the bearing bottom ring 1 and the bearing top ring 4, avoid heat wear of the load steel ball 3 due to excessive rotation, so as to further improve the service life of the bearing, and the bottom raceway grooves 102 and the top raceway grooves 402 opened at the top of the bearing bottom ring 1 and the bottom of the bearing top ring 4 cooperate to guide the load steel ball 3.

[0025] Among them, the bearing retainer 2 is in the shape of a flat ring, and twelve steel ball rolling grooves 201 are opened in a circular array in the upper and lower end surfaces of the bearing retainer 2, and eight concave guide ring grooves 202 are opened in a circular array in the outer wall of the steel ball rolling groove 201. The load steel ball 3 is rotatably connected in the steel ball rolling groove 201. The specific function is that the guide ring groove 202 is opened on the side wall of the steel ball rolling groove 201 of the bearing retainer 2, so that when the load steel ball 3 rotates, the lubricating fluid attached to the surface of the load steel ball 3 can circulate in the upper and lower spaces of the bearing retainer 2, so as to further improve the lubrication effect.

[0026] Among them, hexagonal concave adjustment connection holes 405 are opened in the two planes between the three top heat dissipation grooves 401 on the top of the bearing top ring 4, and four groups of adjustment connection holes 405 are opened in a circular array. An external connection thread 406 is opened in the outer wall of the bearing top ring 4, and a "Y"-shaped oil injection hole 404 is opened at the bottom of the top heat dissipation groove 401 of the bearing top ring 4. There are four oil injection holes 404 in a circular array. A fitting ring groove 403 is opened at the bottom of the inner side wall of the bearing top ring 4, and the fitting ring groove 403 and the alignment protrusion 103 on the inner side of the top of the bearing bottom ring 1 are slidably fitted. The bottom end of the oil injection hole 404 is opened in the top raceway groove 4 02 and the fitting ring groove 403, the specific function is to open a hexagonal concave adjustment connection hole 405 in the top plane of the bearing top ring 4, so that when the bearing is repaired, the position of the bearing top ring 4 can be fixed with a tool to prevent the bearing top ring 4 from rotating arbitrarily, and the bearing top ring 4 slides and fits with the alignment protrusion 103 on the top inner side of the fitting ring groove 403 and the bearing bottom ring 1, thereby avoiding the problem of misaligned rotation of the bearing top ring 4 and the bearing bottom ring 1, so as to improve the stability of the bearing during rotation, and the "Y"-shaped oil filling hole 404 opened in the bearing top ring 4 can more conveniently determine the filling amount when adding lubricating oil.

[0027] Among them, an internal connecting thread 501 is provided at the top of the inner wall of the outer protective ring 5, and the internal connecting thread 501 is connected to the external connecting thread 406 of the outer wall of the bearing top ring 4, and the bottom of the inner wall of the outer protective ring 5 is fixedly connected with a fitting ring protrusion 502, and the fitting ring protrusion 502 is slidably connected to the connecting ring groove 104 of the bearing bottom ring 1. The specific function is that the outer protective ring 5 is connected to the external connecting thread 406 of the outer wall of the bearing top ring 4 through the internal connecting thread 501, and the fitting ring protrusion 502 at the bottom of the inner wall of the outer protective ring 5 is slidably connected to the connecting ring groove 104 of the bearing bottom ring 1, so that the bearing top ring 4 and the bearing bottom ring 1 are connected from the outside, thereby further improving the concentricity without affecting the convenience of disassembly of the bearing top ring 4 and the bearing bottom ring 1.

[0028] The specific usage and function of this embodiment are as follows:

[0029] When the detachable and maintainable bearing is used, three annular bottom heat dissipation grooves 101 and top heat dissipation grooves 401 are opened at equal distances at the bottom of the bearing bottom ring 1 and the top of the bearing top ring 4 to improve the heat dissipation effect of the bearing bottom ring 1 and the bearing top ring 4, and to avoid heat wear of the load steel ball 3 due to excessive rotation, so as to further improve the service life of the bearing, and the bottom raceway grooves 102 and the top raceway grooves 402 opened at the top of the bearing bottom ring 1 and the bottom of the bearing top ring 4 cooperate to guide the load steel ball 3, and a guide ring groove 202 is opened on the side wall of the steel ball rolling groove 201 of the bearing retainer 2, so that when the load steel ball 3 rotates, the lubricating fluid attached to the surface of the load steel ball 3 can circulate in the upper and lower spaces of the bearing retainer 2, and a hexagonal concave adjustment connection hole 405 is opened in the top plane of the bearing top ring 4, so that When inspecting the bearing, a tool is used to fix the position of the bearing top ring 4 to prevent the bearing top ring 4 from rotating arbitrarily. The bearing top ring 4 slides in engagement with the alignment protrusion 103 on the inner side of the top of the bearing bottom ring 1 through the engaging ring groove 403, thereby avoiding the problem of misaligned rotation of the bearing top ring 4 and the bearing bottom ring 1, so as to improve the stability of the bearing during rotation. The "Y"-shaped oil filling hole 404 opened in the bearing top ring 4 can more conveniently determine the filling amount when adding lubricating oil. The outer protective ring 5 is connected to the outer connecting thread 406 on the outer wall of the bearing top ring 4 through the inner connecting thread 501, and the engaging ring protrusion 502 at the bottom of the inner wall of the outer protective ring 5 is slidably connected to the connecting ring groove 104 of the bearing bottom ring 1, so that the bearing top ring 4 and the bearing bottom ring 1 are sleeved from the outside, thereby further improving the concentricity without affecting the convenience of disassembly of the bearing top ring 4 and the bearing bottom ring 1. Example 2:

[0030] By replacing the internal connecting thread 501 and the external connecting thread 406 of the outer protective ring 5 and the bearing top ring 4 with an insert and a slot connection, the bearing can be further disassembled and maintained more conveniently.

Claims

1. A detachable and maintainable bearing, characterized in that: The invention comprises a bearing bottom ring (1); a load steel ball (3) is slidably connected to the top end surface of the bearing bottom ring (1); the load steel ball (3) is rotatably connected to the bearing retainer (2) in an annular array; there are twelve load steel balls (3) in the annular array; the top of the load steel ball (3) is slidably connected to the bottom end surface of the bearing top ring (4); and an outer protective ring (5) is threadedly connected to the outer wall of the bearing top ring (4).

2. A detachable and maintainable bearing according to claim 1, characterized in that: The bottom end surface of the bearing bottom ring (1) is provided with three concave bottom heat dissipation grooves (101) at an intermediate distance, the middle of the top end surface of the bearing bottom ring (1) is provided with a concave bottom raceway groove (102), the top of the bottom raceway groove (102) is slidably connected with a load steel ball (3), the inner side of the top end surface of the bearing bottom ring (1) is fixedly connected with an alignment protrusion (103), the alignment protrusion (103) is annular, and the middle of the outer side wall of the bearing bottom ring (1) is provided with an annular concave connecting ring groove (104).

3. The detachable and maintainable bearing according to claim 1, characterized in that: The bearing retainer (2) is in the shape of a flat ring. Twelve steel ball rolling grooves (201) are provided in an annular array on the upper and lower end surfaces of the bearing retainer (2). Eight inwardly concave guide ring grooves (202) are provided in an annular array on the outer side walls of the steel ball rolling grooves (201). Load steel balls (3) are rotatably connected in the steel ball rolling grooves (201).

4. The detachable and maintainable bearing according to claim 1, characterized in that: Three inward-concave top heat dissipation grooves (401) are provided at medium distances on the top end surface of the bearing top ring (4); hexagonal inward-concave adjustment connection holes (405) are provided in two planes between the three top heat dissipation grooves (401) on the top of the bearing top ring (4); four groups of adjustment connection holes (405) are provided in a circular array; an external connection thread (406) is provided in the outer wall of the bearing top ring (4); a "Y"-shaped oil injection through hole (404) is provided at the bottom of the top heat dissipation groove (401) of the bearing top ring (4); four oil injection through holes (404) are provided in a circular array.

5. The detachable and maintainable bearing according to claim 1, characterized in that: The bottom end surface of the bearing top ring (4) is provided with an inwardly concave top raceway groove (402), the top raceway groove (402) is slidably connected to the top of the load steel ball (3), the bottom of the inner side wall of the bearing top ring (4) is provided with a fitting ring groove (403), the fitting ring groove (403) and the alignment protrusion (103) on the inner side of the top of the bearing bottom ring (1) are slidably fitted, and the bottom end of the oil injection hole (404) is provided between the top raceway groove (402) and the fitting ring groove (403).

6. The detachable and maintainable bearing according to claim 1, characterized in that: An inner connecting thread (501) is provided at the top of the inner side wall of the outer protective ring (5), and the inner connecting thread (501) is connected to the outer connecting thread (406) of the outer side wall of the bearing top ring (4). A fitting annular protrusion (502) is fixedly connected to the bottom of the inner side wall of the outer protective ring (5), and the fitting annular protrusion (502) is slidably connected to the connecting annular groove (104) of the bearing bottom ring (1).

Images