Bearing friction and wear test tool with lubricating device

Abstract

A bearing friction wear test tool with a lubricating device belongs to the technical field of bearing inspection equipment and comprises a workbench, a motor seat, a bearing seat, a bearing ring, the lubricating device, a clamp and a rolling body, the lubricating device is an oil pool filled with lubricating oil, and the motor seat and the bearing seat are arranged on the left side and the right side of the upper surface of the workbench respectively. An oil pool is arranged between the motor base and the bearing seat, a motor of the motor base is connected with a rotating main shaft, the rotating main shaft transversely penetrates through the oil pool and then is matched with the bearing seat, the rotating main shaft located in the oil pool is sleeved with a bearing sleeve, a clamp is vertically arranged above the oil pool, the lower portion of the clamp penetrates into the oil pool, and a rolling body is arranged at the bottom of the clamp. And the rolling body is in contact with the bearing ring. The tool is simple in structure, low in manufacturing cost and high in stability, the outer arc surface of the rolling body is in contact fit with the V-shaped block and is pressed through the set screw, the stability is higher, the lubricating oil pool can meet the lubricating requirement of a friction wear test, sealing is tight, and oil drainage is convenient and fast.

Description

Technical Field

[0001] This utility model belongs to the technical field of bearing inspection equipment, specifically relating to a bearing friction test fixture with a lubrication device. Background Technology

[0002] In the bearing R&D and manufacturing industry, it is usually necessary to conduct friction and wear tests on newly developed bearing materials or newly designed bearing samples to verify the wear resistance of the new products. The test process involves rotating the bearing race, fixing a bearing rolling element, and rubbing it against the raceway surface of the race. After the test, the contact surface is inspected to verify its wear resistance. Currently, there are few friction and wear testing devices on the market, and they cannot provide lubrication conditions. Furthermore, fixing cylindrical bearing rolling elements is a challenge. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to propose a bearing friction and wear testing fixture with a lubrication device, so as to solve the clamping problem of cylindrical rolling element test workpieces mentioned in the background art, and to provide lubrication conditions for the test process.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a bearing friction and wear testing fixture with a lubrication device, comprising a worktable, a motor base, a bearing housing, a bearing ring, a lubrication device, a clamp, and rolling elements. The lubrication device is an oil sump filled with lubricating oil. The left and right sides of the upper surface of the worktable are respectively provided with a motor base and a bearing housing, and an oil sump is provided between the motor base and the bearing housing. The motor of the motor base is connected to a rotating spindle, which transversely passes through the oil sump and engages with the bearing housing. The bearing ring is fitted onto the rotating spindle located inside the oil sump. A clamp is vertically arranged above the oil sump, and the lower part of the clamp extends into the oil sump. A rolling element is provided at the bottom of the clamp, and the rolling element contacts the bearing ring.

[0005] The fixture includes a support rod, a U-shaped frame, a fixing frame, a set screw, a cylindrical pin, a V-block, and a countersunk screw. The support rod is a cylindrical rod structure with its upper end mounted on the machine tool and a groove at its lower end. The U-shaped frame is housed in the groove and secured with a countersunk screw. The fixing frame is located inside the U-shaped frame, and its two ends are connected to the U-shaped frame by cylindrical pins. The fixing frame contains a V-block and a rolling element, which are pressed together with a set screw.

[0006] The oil sump includes a housing, end caps, sealing rings, and screw plugs. The housing has symmetrical circular holes A on its left and right sides, which are coaxial with the rotating spindle. The circular holes A are fitted with circular end caps, and the center of the end caps has circular holes B that match the diameter of the rotating spindle. The rotating spindle passes through the circular holes B on the end caps. A sealing ring is provided between the rotating spindle and the circular holes B. A threaded hole is provided on the lower front side of the housing, and a screw plug is provided on the threaded hole to control the discharge of lubricating oil.

[0007] The box body is provided with a cover plate. There are two cover plates, which are symmetrically installed on the top of the box body by screws. The cover plate holes are provided at the joint of the two cover plates, and the diameter of the cover plate holes matches that of the support rods provided by the clamp.

[0008] The V-shaped block is a rectangular block structure with a "V" shaped groove, and the rolling element is a circular block structure with the opening of the "V" shaped groove facing downwards and the two sides of the "V" shaped groove being tangent to the outer arc surface of the rolling element.

[0009] The axis of the support rod intersects perpendicularly with the axis of the rotating spindle, and the lower end face of the rolling element contacts the raceway surface of the bearing ring.

[0010] The beneficial effects of this utility model are: the test fixture has a simple structure, low processing difficulty, low manufacturing cost, and strong stability; the rolling element is in tangential contact with the "V" shaped surface of the V-block and is pressed by the set screw, which enhances stability; the lubricating oil pool can meet the lubrication requirements of the friction and wear test, is tightly sealed, and has convenient and quick oil drainage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 for Figure 1 Enlarged view of part A.

[0013] Figure 3 This is an exploded view of the fixture of this utility model.

[0014] Figure 4 A schematic diagram of the assembly of the U-shaped frame and the fixed frame.

[0015] Figure 5 This is a schematic diagram of an oil tank explosion according to this utility model.

[0016] In the diagram: 1. Workbench, 2. Bearing ring, 3. Oil sump, 31. Housing, 311. Housing hole, 312. Oil drain hole, 32. Cover plate, 321. Cover plate hole, 33. End cover, 331. End cover hole, 34. Sealing ring, 35. Plug, 4. Fixture, 41. Support rod, 42. U-shaped frame, 43. Fixing frame, 44. Set screw, 45. Cylindrical pin, 46. V-block, 47. Countersunk screw, 5. Rolling element, 6. Motor base, 7. Bearing housing, 8. Rotary spindle. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] Please see Figures 1-5A bearing friction and wear testing fixture with a lubrication device includes a worktable 1, a motor base 6, a bearing housing 7, a bearing ring 2, a lubrication device, a clamp 4, and rolling elements 5. The lubrication device is an oil tank 3 internally filled with lubricating oil. The motor base 6 and the bearing housing 7 are respectively located on the left and right sides of the upper surface of the worktable 1. The oil tank 3 is located between the motor base 6 and the bearing housing 7. The motor of the motor base 6 is connected to a rotating spindle 8. The rotating spindle 8 passes through the oil tank 3 laterally and engages with the bearing housing 7. The bearing ring 2 is fitted on the rotating spindle 8 located inside the oil tank 3. The clamp 4 is vertically arranged above the oil tank 3. The lower part of the clamp 4 extends into the oil tank 3. The bottom of the clamp 4 is provided with rolling elements 5, which contact the bearing ring 2. The fixture 4 includes a support rod 41, a U-shaped frame 42, a fixing frame 43, a set screw 44, a cylindrical pin 45, a V-block 46, and a countersunk screw 47. The support rod 41 is a cylindrical rod structure. The upper end of the support rod 41 is mounted on the machine tool, and a groove is provided at its lower end. The width of the groove matches the width of the U-shaped frame 42. The U-shaped frame 42 is housed in the groove and is fastened by the countersunk screw 47. The fixing frame 43 is housed within the U-shaped frame 42. The two ends of the fixing frame 43 are connected to the U-shaped frame 42 by cylindrical pins 45. To ensure that the angle can be adjusted after the fixing frame 43 and the U-shaped frame 42 are assembled, so that the rolling element 5 of the bearing and the raceway surface of the bearing ring 2 can make better contact, the dimension H1 in the U-shaped frame 42 needs to be larger than the dimension H2 in the fixing frame 43. The fixing frame 43 houses the V-block 46 and the rolling element 5, which are clamped together by the set screw 44. The oil sump 3 includes a housing 31, an end cap 32, a sealing ring 34, and a screw plug 35. The housing 31 has symmetrical circular holes 311 on its left and right sides. The circular holes 311 are coaxial with the rotating spindle 8. The circular holes 311 are provided with circular end caps 33 that mate with them. The center of the end cap 33 has an end cap circular hole 331 that matches the diameter of the rotating spindle 8. The rotating spindle 8 passes through the end cap circular hole 331 provided by the end cap 33. A sealing ring 34 is provided between the rotating spindle 8 and the end cap circular hole 331. An oil drain hole 312 is provided on the lower front side of the housing 31. A screw plug 35 is provided on the oil drain hole 312 to control the discharge of lubricating oil. The housing 31 is provided with a cover plate 32. There are two cover plates 32, which allow the support rod 41 to pass through the cover plate 32 easily and improve the seal between the oil tank cover plate 32 and the clamp support rod 41. The two cover plates 32 are symmetrically installed on the top of the housing 31 by screws. The joint of the two cover plates 32 is provided with a cover plate hole 321, which matches the diameter of the support rod 41 of the clamp 4.

[0019] The V-shaped block 46 is a rectangular block structure with a "V"-shaped groove, and the rolling element 5 is a circular block structure with the opening of the "V"-shaped groove facing downwards. The two sides of the "V"-shaped groove are tangent to the outer arc surface of the rolling element 5. The axis of the support rod 41 intersects perpendicularly with the axis of the rotating spindle 8, and the lower end face of the rolling element 5 contacts and engages with the raceway surface of the bearing ring 2.

[0020] When using this utility model:

[0021] Install all components as shown in the diagram, with the cover plate 32 installed last. Add lubricating oil to the appropriate height inside the housing 31. Operate the machine tool to make the rolling element 5 at the lower end of the fixture 4 contact the raceway surface of the bearing ring 2 on the rotating spindle 8. Install the cover plate 32 and drive the rotating spindle 8 to rotate via the motor. The bearing ring 2 rotates together with the rotating spindle 8, generating friction between the rolling element 5 and the bearing ring 2. The friction and wear test begins. After the test, unscrew the plug 35 to drain the lubricating oil from the housing 31. Then, disassemble the bearing ring 2 to inspect the contact surface, thereby verifying its wear resistance.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0023] The parts of this utility model not described in detail are existing technologies.

Claims

1. A bearing friction and wear testing fixture with a lubrication device, comprising a worktable (1), a motor base (6), a bearing housing (7), bearing rings (2), a lubrication device, a fixture (4), and rolling elements (5), characterized in that: The lubrication device is an oil tank (3) with internal lubricating oil. The upper surface of the workbench (1) is provided with a motor seat (6) and a bearing seat (7) on the left and right sides respectively. The oil tank (3) is provided between the motor seat (6) and the bearing seat (7). The motor of the motor seat (6) is connected to a rotating spindle (8). The rotating spindle (8) passes through the oil tank (3) laterally and then cooperates with the bearing seat (7). The bearing ring (2) is fitted on the rotating spindle (8) inside the oil tank (3). A clamp (4) is vertically provided above the oil tank (3). The lower part of the clamp (4) passes into the oil tank (3). A rolling element (5) is provided at the bottom of the clamp (4). The rolling element (5) contacts the bearing ring (2).

2. The bearing friction and wear testing fixture with a lubrication device according to claim 1, characterized in that: The fixture (4) includes a support rod (41), a U-shaped frame (42), a fixing frame (43), a set screw (44), a cylindrical pin (45), a V-block (46), and a countersunk screw (47). The support rod (41) is a cylindrical rod structure. The upper end of the support rod (41) is mounted on the machine tool, and a groove is provided at its lower end. The U-shaped frame (42) is provided in the groove. The U-shaped frame (42) is fastened by the countersunk screw (47). The fixing frame (43) is provided in the U-shaped frame (42). The two ends of the fixing frame (43) are connected to the U-shaped frame (42) by cylindrical pins (45). The fixing frame (43) is provided with a V-block (46) and a rolling element (5). The V-block (46) and the rolling element (5) are pressed together by the set screw (44).

3. The bearing friction and wear testing fixture with a lubrication device according to claim 1, characterized in that: The oil sump (3) includes a housing (31), an end cap (33), a sealing ring (34), and a screw plug (35). The housing (31) has a housing round hole (311) symmetrically arranged on the left and right sides. The housing round hole (311) is coaxial with the rotating spindle (8). The housing round hole (311) is provided with a circular end cap (33) that matches it. The end cap (33) has an end cap round hole (331) in the center that matches the diameter of the rotating spindle (8). The rotating spindle (8) passes through the end cap round hole (331) provided by the end cap (33). A sealing ring (34) is provided between the rotating spindle (8) and the end cap round hole (331). A threaded hole (312) is provided on the lower front side of the housing (31). A screw plug (35) is provided on the threaded hole (312) to control the discharge of lubricating oil.

4. The bearing friction and wear testing fixture with a lubrication device according to claim 3, characterized in that: The box (31) is provided with a cover plate (32). There are two cover plates (32), which are symmetrically installed on the top of the box (31) by screws. The two cover plates (32) are provided with a cover plate hole (321) at the joint. The cover plate hole is matched with the diameter of the support rod (41) provided by the clamp (4).

5. The bearing friction and wear testing fixture with a lubrication device according to claim 2, characterized in that: The V-shaped block (46) is a rectangular block structure with a "V" shaped groove, and the rolling body (5) is a circular block structure with the opening of the "V" shaped groove facing downwards. The two sides of the "V" shaped groove are tangent to the outer arc surface of the rolling body (5).

6. The bearing friction and wear testing fixture with a lubrication device according to claim 2, characterized in that: The axis of the support rod (41) intersects perpendicularly with the axis of the rotating spindle (8), and the lower end face of the rolling element (5) contacts the raceway surface of the bearing ring (2).

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