A test fixture for bearing performance testing

Abstract

This utility model relates to the field of bearing performance testing technology and discloses a test fixture for bearing performance testing, comprising: a mounting mechanism including a test bench, adjusting rails fixed to both ends of the top of the test bench, a movable stage slidably connected within the adjusting rails, a clamping stage fixed to the top of the movable stage, and an inner ring clamping assembly mounted on the left side of the clamping stage near the center. This utility model, through the setting of the inner ring clamping assembly, fits the inner wall of the bearing inner ring to be tested onto the outside of the mounting column near the clamping stage. Rotating the adjusting sleeve moves the position of the mounting sleeve closer to the clamping stage, and through the cooperation of the adjusting frame, moves the position of the clamping block away from the center of the mounting sleeve, thereby fixing the bearing from the inner wall and testing the performance of the bearing outer ring.

Description

Technical Field

[0001] This utility model relates to the field of bearing performance testing technology, specifically a test fixture for bearing performance testing. Background Technology

[0002] A bearing is a special type of sliding bearing, mainly composed of an inner ring with an outer spherical surface and an outer race with an inner spherical surface. It is widely used in the connection of oscillating components in mechanical engineering, aircraft, and other fields.

[0003] An existing application with application number 202222938808.7 discloses a test fixture for bearing performance testing, comprising two sets of bases, each with a bearing seat fixedly mounted on its top. A first fixture and a third fixture are respectively arranged within the two sets of bearing seats, with a second fixture positioned between the first and third fixtures. The second fixture is assembled with the first and third fixtures using an interference fit. A mandrel is disposed within the second fixture, and a positioning sleeve is provided on the surface of the mandrel. The mandrel and positioning sleeve are used to clamp the bearing to be tested. A water-cooling structure is connected to both the X-axis swing flange and the water-cooled flange. The sample fixing sleeve and the fixture are fitted together for easy assembly and placement of the test bearing. This invention enables the testing of the wear amount of various spherical plain bearing gaskets and the dynamic and static performance under high-temperature conditions. It is applicable to the friction and wear life testing of small radial spherical plain bearings, external thread rod end spherical plain bearings, and internal thread rod end spherical plain bearings.

[0004] Existing test fixtures can only clamp and fix bearings locally through a single clamping result. However, bearing testing requires testing the inner and outer rings separately, which necessitates fixing the inner and outer rings separately. Fixing the outer ring is relatively simple, while fixing the inner ring is more difficult. Therefore, it is impossible to simultaneously clamp and fix the inner and outer rings. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given the difficulty in clamping the inner and outer rings in the existing technology, it is difficult to test the inner and outer rings separately.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A test fixture for bearing performance testing, comprising: The installation mechanism includes a test bench, adjusting rails fixed to both ends of the top of the test bench, a movable platform slidably connected to the adjusting rails, a clamping platform fixed to the top of the movable platform, an inner ring clamping assembly installed on the left side of the clamping platform near the center, and an outer ring clamping assembly installed on the right side of the clamping platform. The adjustment mechanism includes an adjusting screw rotatably connected inside the adjusting rail and a rotating buckle fixed to one end of the adjusting screw.

[0008] As a further embodiment of this utility model: the inner ring clamping assembly includes a mounting post fixed to one end of the clamping platform on the left side, a mounting sleeve sleeved on the outside of the mounting post, and an adjusting sleeve threadedly connected to the outside of the mounting post on the side near the center of the test platform.

[0009] As a further embodiment of this utility model: the inner surface of the mounting sleeve is in contact with the outer surface of the mounting post, and the mounting sleeve forms a horizontally movable structure with the adjusting sleeve.

[0010] As a further embodiment of this utility model: the mounting sleeve is configured as a hexagonal prism, with connecting buckles evenly distributed on the outside of the hexagonal prism, an adjustment frame connected to the side of the connecting buckle away from the center of the hexagonal prism, a clamping block hinged to the side of the adjustment frame away from the center of the test platform, and a gasket fixed to the side of the clamping block away from the center of the clamping platform.

[0011] As a further embodiment of this utility model: the clamping platform has an adjustment groove equidistantly provided inside on the side of the test platform near the center, and the clamping block is slidably connected to the inside of the adjustment groove on the side away from the center of the test platform. A limit rod is fixed inside the adjustment groove, and the limit rod passes through the inside of the clamping block.

[0012] As a further embodiment of this utility model: the outer ring clamping assembly includes a placement opening, which is opened inside the clamping platform located on the right side, clamping arc plates are equidistantly distributed in the placement opening, adjusting screws are fixed at both ends on the side of the clamping arc plates away from the center of the clamping platform, and adjusting screw sleeves are sleeved on the outside of the side of the adjusting screws away from the center of the clamping platform.

[0013] As a further embodiment of this utility model: a rotating bevel gear is fixed on the side of the adjusting screw sleeve away from the center of the placement port, a linkage gear ring is engaged with the rotating bevel gear on the side of the rotating bevel gear near the center of the clamping platform, a tooth groove is opened at the center of the outer side of the linkage gear ring, an adjusting gear is engaged on one side of the tooth groove, and an adjusting buckle is fixed at the center of the top of the adjusting gear.

[0014] As a further embodiment of this utility model: the linkage gear ring forms a rotating structure with the clamping table through the tooth groove and the adjusting gear, and the clamping arc plate forms a locally movable structure through the adjusting screw and the adjusting sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of the inner ring clamping assembly, fits the inner wall of the bearing inner ring that needs to be tested onto the outside of the mounting column near the clamping table. By rotating the adjusting sleeve, the position of the mounting sleeve is moved closer to the clamping table. With the cooperation of the adjusting frame, the position of the clamping block is moved away from the center of the mounting sleeve, thereby fixing the bearing from the inner wall and testing the performance of the bearing outer ring.

[0016] 2. This utility model, through the setting of the outer ring clamping assembly, places the bearing at the inner center of the placement port, and makes the outer wall of the bearing outer ring fit against the surface of the clamping arc plate. Through the cooperation of the linkage gear ring and the rotating bevel gear, the adjusting screw sleeve is driven to rotate, and the adjusting screw sleeve drives the adjusting screw and the clamping arc plate to move towards the center of the placement port, thereby fixing the clamping arc plate to the outer surface of the bearing outer ring, and testing the performance of the bearing inner ring. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a test fixture for testing bearing performance. Figure 2 This is a schematic diagram of a test fixture for testing bearing performance. Figure 3 This is a schematic diagram of a test fixture for testing bearing performance. Figure 4 This is a schematic diagram of a test fixture for testing bearing performance. Figure 5 This is a schematic diagram of a test fixture for testing bearing performance.

[0018] In the diagram: 100, Installation mechanism; 101, Test bench; 102, Adjustment rail; 103, Moving table; 104, Clamping table; 105, Inner ring clamping assembly; 1051, Mounting column; 1052, Mounting sleeve; 1053, Adjustment sleeve; 1054, Limiting rod; 1055, Connecting buckle; 1056, Adjustment frame; 1057, Clamping block; 1058, Shim; 106, Outer ring clamping assembly; 1061, Clamping arc plate; 1062, Adjusting screw; 1063, Adjusting screw sleeve; 1064, Rotating bevel gear; 1065, Linkage gear ring; 1066, Gear groove; 1067, Adjusting gear; 1068, Adjustment buckle; 200, Adjustment mechanism; 201, Adjusting screw; 202, Rotating buckle. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0022] Example 1: Please see Figures 1-3 This is the first embodiment of the present invention. This embodiment provides a test fixture for bearing performance testing, including: The mounting mechanism 100 includes a test bench 101, an adjustment rail 102 fixed to both ends of the top of the test bench 101, a movable platform 103 slidably connected to the adjustment rail 102, a clamping platform 104 fixed to the top of the movable platform 103, an inner ring clamping assembly 105 installed on the left side of the clamping platform 104 near the center, and an outer ring clamping assembly 106 installed in the right side of the clamping platform 104. The adjustment mechanism 200 includes an adjustment screw 201 rotatably connected inside the adjustment rail 102 and a rotating buckle 202 fixed to one end of the adjustment screw 201.

[0023] Specifically, the inner ring clamping assembly 105 includes a mounting post 1051 fixed to one end of the clamping platform 104 located on the left side, a mounting sleeve 1052 sleeved on the outside of the mounting post 1051, and an adjusting sleeve 1053 threadedly connected to the outside of the mounting post 1051 on the side near the center of the test bench 101.

[0024] Specifically, the inner surface of the mounting sleeve 1052 is in contact with the outer surface of the mounting post 1051, and the mounting sleeve 1052 forms a horizontally movable structure with the adjusting sleeve 1053.

[0025] Specifically, the mounting sleeve 1052 is configured as a hexagonal prism, with connecting buckles 1055 evenly distributed on the outside of the hexagonal prism, an adjustment frame 1056 connected to the connecting buckle 1055 on the side away from the center of the hexagonal prism, a clamping block 1057 hinged to the side of the adjustment frame 1056 away from the center of the test bench 101, and a gasket 1058 fixed to the side of the clamping block 1057 away from the center of the clamping table 104.

[0026] Specifically, the clamping table 104 has an adjustment groove equidistantly provided inside the side of the test table 101 near the center. The clamping block 1057 is slidably connected to the inside of the adjustment groove on the side away from the center of the test table 101. A limit rod 1054 is fixed inside the adjustment groove and passes through the inside of the clamping block 1057.

[0027] Furthermore, when it is necessary to test the performance of the outer ring of the bearing, the inner ring of the bearing needs to be fixed. The inner ring of the bearing is fitted onto the outside of the mounting post 1051 near the clamping table 104, and onto the outside of the clamping block 1057. By rotating the adjusting sleeve 1053, the position of the adjusting sleeve 1053 outside the mounting post 1051 is moved, and the position of the mounting sleeve 1052 is pushed closer to the clamping table 104. Since the two ends of the adjusting frame 1056 are rotatably connected to the clamping block 1057 and the mounting sleeve 1052 respectively, the position of the clamping block 1057 can be pushed to move inside the adjusting groove, and the shim 1058 is moved closer to the inner wall of the bearing inner ring, thereby completing the clamping and fixing of the bearing inner ring.

[0028] In use, the inner ring of the bearing is first fitted inside the clamping block 1057. By adjusting the position of the adjusting sleeve 1053 outside the mounting post 1051, the position of the mounting sleeve 1052 is adjusted accordingly. Through the cooperation of the mounting sleeve 1052 and the adjusting bracket 1056, the position of the clamping block 1057 can be adjusted until the surface of the clamping block 1057 is tightly fitted with the inner wall of the bearing inner ring. The bearing is then fixedly clamped from the inner wall of the bearing inner ring by the clamping block 1057.

[0029] In summary, when it is necessary to test the performance of the bearing outer ring, the bearing inner ring should be clamped and fixed first. During the performance test, the bearing inner ring is stationary, while the outer ring can rotate normally, thereby completing the performance test of the bearing outer ring.

[0030] Example 2: Please see Figure 1 and Figure 4 as well as Figure 5 This is the second embodiment of the present utility model.

[0031] Specifically, the outer ring clamping assembly 106 includes a placement opening, which is opened inside the clamping platform 104 located on the right side. Clamping arc plates 1061 are equidistantly distributed in the placement opening. Adjusting screws 1062 are fixed to both ends of the clamping arc plates 1061 on the side away from the center of the clamping platform 104. Adjusting sleeves 1063 are sleeved on the outside of the adjusting screws 1062 on the side away from the center of the clamping platform 104.

[0032] Specifically, a rotating bevel gear 1064 is fixed on the side of the adjusting screw sleeve 1063 away from the center of the placement port, a linkage gear ring 1065 is engaged with the rotating bevel gear 1064 on the side of the rotating bevel gear 1064 near the center of the clamping table 104, a tooth groove 1066 is opened at the center of the outer side of the linkage gear ring 1065, an adjusting gear 1067 is engaged with the side of the tooth groove 1066, and an adjusting buckle 1068 is fixed at the center of the top of the adjusting gear 1067.

[0033] Specifically, the linkage gear ring 1065 forms a rotating structure with the clamping table 104 through the tooth groove 1066 and the adjusting gear 1067, and the clamping arc plate 1061 forms a local moving structure through the adjusting screw 1062 and the adjusting sleeve 1063.

[0034] Furthermore, the outer ring of the bearing is placed at the center of the placement opening, and the outer surface of the outer ring of the bearing is made to fit against the surface of the clamping arc plate 1061. Then, the adjusting buckle 1068 is rotated, which drives the adjusting gear 1067 to rotate. Through the meshing structure between the adjusting gear 1067 and the tooth groove 1066, the linkage gear ring 1065 is driven to rotate. Through the meshing structure between the linkage gear ring 1065 and the rotating bevel gear 1064, the adjusting screw sleeve 1063 is driven to rotate. Since the inner surface of the adjusting screw sleeve 1063 is threadedly connected to the outer surface of the adjusting screw 1062, the position of the adjusting screw 1062 and the clamping arc plate 1061 can be moved closer to the center of the bearing, and the outer ring of the bearing is clamped and fixed by the clamping arc plate 1061.

[0035] In use, after placing the outer ring of the bearing at the center of the placement port, the adjusting sleeve 1063 is driven to rotate synchronously by the action of the linkage gear ring 1065. This setting allows the adjusting sleeves 1063 to rotate synchronously, and through the synchronous rotation of the adjusting sleeves 1063, the clamping arc plate 1061 can be tightly fitted with the outer surface of the bearing outer ring, thereby completing the fixation of the bearing outer ring.

[0036] In summary, by rotating the meshing structure between the bevel gear 1064 and the linkage gear ring 1065, the adjusting screw sleeve 1063 can rotate synchronously, thereby driving the clamping arc plate 1061 to move synchronously towards the center, thus completing the clamping and fixing of the outer ring of the bearing. With the outer ring of the bearing stationary, the performance of the inner ring of the bearing can be tested.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A test fixture for bearing performance testing, characterized by: include: The mounting mechanism (100) includes a test bench (101), an adjustment rail (102) fixed to both ends of the top of the test bench (101), a movable stage (103) slidably connected to the adjustment rail (102), a clamping stage (104) fixed to the top of the movable stage (103), an inner ring clamping assembly (105) installed on the left side of the clamping stage (104) near the center, and an outer ring clamping assembly (106) installed on the right side of the clamping stage (104). The adjustment mechanism (200) is rotatably connected to the adjustment screw (201) inside the adjustment rail (102), and the rotating buckle (202) is fixed to one end of the adjustment screw (201).

2. The test fixture of claim 1, wherein: The inner ring clamping assembly (105) includes a mounting post (1051) fixed to one end of the clamping platform (104) on the left side, a mounting sleeve (1052) sleeved on the outside of the mounting post (1051), and an adjusting sleeve (1053) threaded to the outside of the mounting post (1051) on the side near the center of the test platform (101).

3. The test fixture of claim 2, wherein: The inner surface of the mounting sleeve (1052) is in contact with the outer surface of the mounting post (1051), and the mounting sleeve (1052) forms a horizontal moving structure with the mounting sleeve (1052) through the adjusting sleeve (1053).

4. The test fixture of claim 3, wherein: The mounting sleeve (1052) is configured as a hexagonal prism, with connecting buckles (1055) evenly distributed outside the hexagonal prism. An adjustment frame (1056) is connected to the side of the connecting buckle (1055) away from the center of the hexagonal prism. A clamping block (1057) is hinged to the side of the adjustment frame (1056) away from the center of the test table (101). A gasket (1058) is fixed to the side of the clamping block (1057) away from the center of the clamping table (104).

5. A test fixture for bearing performance testing according to claim 4, characterized in that: The clamping platform (104) has an adjustment groove equidistantly provided on the side of the test platform (101) near the center. The clamping block (1057) is slidably connected to the inside of the adjustment groove on the side away from the center of the test platform (101). A limit rod (1054) is fixed inside the adjustment groove and passes through the inside of the clamping block (1057).

6. The test fixture of claim 1, wherein: The outer ring clamping assembly (106) includes a placement opening, which is opened inside the clamping platform (104) located on the right side. Clamping arc plates (1061) are evenly distributed in the placement opening. Adjusting screws (1062) are fixed at both ends of the clamping arc plates (1061) on the side away from the center of the clamping platform (104). Adjusting sleeves (1063) are sleeved on the outside of the adjusting screws (1062) on the side away from the center of the clamping platform (104).

7. A test fixture for bearing performance testing according to claim 6, characterized in that: A rotating bevel gear (1064) is fixed on the side of the adjusting sleeve (1063) away from the center of the placement port. A linkage gear ring (1065) meshes with the rotating bevel gear (1064) inside the side near the center of the clamping table (104). A tooth groove (1066) is opened at the center of the outer side of the linkage gear ring (1065). An adjusting gear (1067) meshes with the side of the tooth groove (1066). An adjusting buckle (1068) is fixed at the center of the top of the adjusting gear (1067).

8. The test fixture of claim 7, wherein: The linkage gear ring (1065) forms a rotating structure with the clamping table (104) through the tooth groove (1066) and the adjusting gear (1067), and the clamping arc plate (1061) forms a local moving structure through the adjusting screw (1062) and the adjusting sleeve (1063).

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