Bearing multidirectional load test bench

Abstract

The utility model relates to the technical field of bearing testboards, in particular to a bearing multidirectional load testboard which comprises a supporting table, an adjusting seat is mounted in the middle of the top end of the supporting table, and a quick clamping mechanism is mounted in the middle of the upper end of the adjusting seat. The quick clamping mechanism composed of the linkage clamping plates, the first sliding groove, the two-way lead screw and the first motor is installed in the middle of the upper end of the adjusting seat, the two-way lead screw can be driven by the first motor to rotate in the testing process so that the two linkage clamping plates can synchronously approach the middle of the bearing test piece, and automatic clamping and limiting of the middle of the bearing test piece are achieved; according to the bearing test piece clamping and limiting device, the tedious operation of manual clamping and limiting is avoided, meanwhile, the design of the first load applying mechanism and the second load applying mechanism is matched, the radial load and the axial load can be automatically applied in the testing process, the tedious operation of manual load applying is omitted, and therefore the overall testing efficiency of a bearing test piece is improved.

Description

Technical Field

[0001] This application relates to the field of bearing test bench technology, and in particular to a bearing multi-directional load test bench. Background Technology

[0002] In the bearing manufacturing process, in order to control the quality of the bearings after production, it is necessary to use a multi-directional load test bench to test the bearing performance.

[0003] In existing bearing multi-directional load test benches, the bearing test piece, consisting of the bearing to be tested, a central shaft, and an outer sleeve, is first clamped and fixed in the middle using bolts. Then, both ends of the bearing test piece are connected to the test motor and the connecting shaft, respectively. Next, loads are applied to the bearing test piece radially and axially by manually adjusting the lead screw. Under the action of the test motor and the connecting shaft, the bearing test piece rotates, and the bearing performance can be tested and displayed with the help of external testing instruments while the bearing test piece is rotating.

[0004] While existing bearing multi-directional load test benches can clamp and limit bearing test pieces and apply axial and radial loads to them, the clamping and limiting of the bearing test pieces in the middle and the application of loads during the test are all achieved manually. This manual clamping and limiting and load application processes are time-consuming, resulting in low testing efficiency for the bearing test pieces. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this application is to provide a bearing multi-directional load test bench that can realize automatic clamping and limiting of the middle part of the bearing test piece, and can also realize automatic application of radial and axial loads.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A bearing multi-directional load testing bench includes a support platform. An adjusting seat is mounted at the center of the top of the support platform. A quick-clamping mechanism is mounted at the center of the upper end of the adjusting seat. The quick-clamping mechanism includes a linkage clamping plate, a first sliding groove, a double-acting lead screw, and a first motor. The first sliding groove is located at the center of the top of the adjusting seat. The double-acting lead screw is installed in the center of the first sliding groove. There are two linkage clamping plates, symmetrically mounted on two oppositely threaded sections of the double-acting lead screw. The first motor is mounted on one side wall of the adjusting seat, directly opposite the end of the double-acting lead screw. An inverted U-shaped bracket is mounted on both sides of the upper end of the adjusting seat. A load application mechanism is mounted at the center of the top of the bracket. The first load application mechanism includes an electric telescopic rod, a pressure plate, and a pressure sensor. An electric telescopic rod is installed at the top center of the support frame. The pressure plate is connected to the telescopic part of the electric telescopic rod. A pressure sensor is installed at the bottom center of the pressure plate. A load application mechanism is also installed on the support platform on one side of the adjustment seat. The load application mechanism includes a slider, a groove, a motor, a vertical plate, a pressure sensor, and a screw. The groove is located at the top center of the support platform. The screw is installed in the middle of the groove. The motor is connected to the power input end of the screw. The slider is installed at the bottom center of the adjustment seat. The vertical plate is installed on the support platform on one side of the adjustment seat. The pressure sensor is installed on the side wall of the vertical plate facing the adjustment seat. A bearing test piece is also provided between the two linkage clamps.

[0008] Optionally, a support plate is provided at the top of the support platform at one end of the bearing test piece, and a connecting shaft with a built-in coupling is installed on the support plate. A test motor is installed on the side of the support plate opposite to the connecting shaft.

[0009] Optionally, a second support plate is provided at the top of the support platform at the other end of the bearing test piece, and a second connecting shaft with a built-in coupling is rotatably installed on the side of the second support plate facing the bearing test piece.

[0010] Optionally, the bidirectional lead screw is rotatably connected to the slide groove, and the bidirectional lead screw passes through the linkage clamp and is threadedly connected to the linkage clamp.

[0011] Optionally, the linkage clamp plate is slidably engaged with the slide groove, and the linkage clamp plate is composed of a T-shaped slider with a screw hole and two clamping blocks symmetrically installed on both sides of the top of the T-shaped slider.

[0012] Optionally, the first motor is connected to the bidirectional lead screw coupling, and the first motor is bolted to the adjusting seat.

[0013] Optionally, the telescopic part of the electric telescopic rod passes through the top of the bracket and is bolted to the pressure plate, the pressure sensor is bolted to the pressure plate, and the pressure plate is located directly above the middle of the bearing test piece.

[0014] Optionally, the second motor is connected to the screw coupling, the screw passes through the slider and is threadedly connected to the slider, and the slider is bolted to the adjusting seat.

[0015] Optionally, the second pressure sensor is bolted to the vertical plate, and the second pressure sensor faces the side wall of the adjustment seat.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] This invention features a quick-clamping mechanism installed at the upper center of the adjusting seat. This mechanism consists of a linkage clamping plate, a sliding groove, a double-acting screw, and a motor. During testing, the motor drives the double-acting screw to rotate, causing the two linkage clamping plates to move synchronously towards the center of the bearing test piece. This achieves automatic clamping and limiting of the bearing test piece, avoiding the tedious manual clamping and limiting operation. Furthermore, in conjunction with the design of the first and second load application mechanisms, the radial and axial loads can be automatically applied during testing, eliminating the need for manual load application and thus improving the overall testing efficiency of the bearing test piece. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure provided in the embodiments of this application;

[0019] Figure 2 This is a schematic diagram of the structure after removing the bearing test piece, provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the linkage clamp provided in the embodiment of this application;

[0021] Figure 4 This is provided by the embodiments of this application. Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5 This is provided by the embodiments of this application. Figure 1 Enlarged view of point B in the middle.

[0023] Explanation of reference numerals in the attached drawings: 1. Bracket; 2. Bearing test piece; 3. Connecting shaft one; 4. Support plate one; 5. Test motor; 6. Support platform; 7. Quick clamp mechanism; 71. Linkage clamp plate; 72. Slide groove one; 73. Bidirectional lead screw; 74. Motor one; 8. Adjusting seat; 9. Support plate two; 10. Connecting shaft two; 11. Load application mechanism one; 111. Electric telescopic rod; 112. Pressure plate; 113. Pressure sensor one; 12. Load application mechanism two; 121. Slider; 122. Slide groove two; 123. Motor two; 124. Vertical plate; 125. Pressure sensor two; 126. Screw. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] To better understand the technical solutions presented in the embodiments of this application, the working principle of the existing bearing multi-directional load test bench will be introduced first.

[0026] In existing bearing multi-directional load test benches, the bearing test piece, consisting of the bearing to be tested, a central shaft, and an outer sleeve, is first clamped and fixed in the middle using bolts. Then, both ends of the bearing test piece are connected to the test motor and the connecting shaft, respectively. Next, loads are applied to the bearing test piece radially and axially by manually adjusting the lead screw. Under the action of the test motor and the connecting shaft, the bearing test piece rotates, and the bearing performance can be tested and displayed with the help of external testing instruments while the bearing test piece is rotating.

[0027] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5This application discloses a bearing multi-directional load testing bench, including a support platform 6. An adjusting seat 8 is installed at the center of the top of the support platform 6. A quick-clamp mechanism 7 is installed at the center of the upper end of the adjusting seat 8. The quick-clamp mechanism 7 includes a linkage clamping plate 71, a sliding groove 72, a bidirectional lead screw 73, and a motor 74. The sliding groove 72 is located at the center of the top of the adjusting seat 8. The bidirectional lead screw 73 is installed in the center of the sliding groove 72. There are two linkage clamping plates 71, symmetrically installed on two oppositely threaded sections of the bidirectional lead screw 73. The motor 74 is installed on one side wall of the adjusting seat 8, directly opposite the end of the bidirectional lead screw 73. An inverted U-shaped bracket 1 is installed on both sides of the upper end of the adjusting seat 8. A load application mechanism 11 is installed at the center of the top of the bracket 1. The load application mechanism 11 includes an electric telescopic rod 111, a pressure plate 112, and a pressure sensor 113. The telescopic mechanism is installed at the top center of the support 1. The pressure plate 112 is connected to the telescopic part of the electric telescopic rod 111. The pressure sensor 113 is installed at the bottom center of the pressure plate 112. A load application mechanism 2 12 is also installed on the support platform 6 on one side of the adjustment seat 8. The load application mechanism 2 12 includes a slider 121, a slide groove 2 122, a motor 2 123, a vertical plate 124, a pressure sensor 2 125, and a screw 126. The slide groove 2 122 is opened at the top center of the support platform 6. The screw 126 is installed in the middle of the slide groove 2 122. The motor 2 123 is connected to the power input end of the screw 126. The slider 121 is installed at the bottom center of the adjustment seat 8. The vertical plate 124 is installed on the support platform 6 on one side of the adjustment seat 8. The pressure sensor 2 125 is installed on the side wall of the vertical plate 124 facing the adjustment seat 8. A bearing test piece 2 is also provided between the two linkage clamps 71.

[0028] Specifically, when clamping and limiting the middle part of the bearing test piece 2, the middle part of the bearing test piece 2 is first placed between two linkage clamping plates 71. Then, under the action of motor 1 74, the bidirectional lead screw 73 is rotated. After the bidirectional lead screw 73 rotates, under the action of thread transmission, the two linkage clamping plates 71 move closer to the bearing test piece 2 at the same time, realizing automatic clamping and limiting of the middle part of the bearing test piece 2. During the test, under the action of electric telescopic rod 111, the pressure plate 112 is pressed on the upper side of the bearing test piece 2, which can apply a radial load to the bearing test piece 2. The magnitude of the radial load can be controlled by pressure sensor 113. Under the action of motor 2 123, screw 126 and slider 121, the adjusting seat 8 can move closer to the upright plate 124 to apply an axial load to the bearing test piece 2. The magnitude of the axial load can be controlled by pressure sensor 2 125.

[0029] Please see Figures 1-2 The top of the support platform 6 is located at one end of the bearing test piece 2, and a support plate 4 is provided. A connecting shaft 3 with a coupling is installed on the support plate 4. The test motor 5 is installed on the side of the support plate 4 facing away from the connecting shaft 3.

[0030] As one implementation method, the connecting shaft 3 is mainly used to transmit the power of the test motor 5 to the bearing test piece 2, and at the same time provide a stable rotational support for one end of the bearing test piece 2.

[0031] Please see Figures 1-2 The top of the support platform 6 is located at the other end of the bearing test piece 2, and a support plate 2 9 is provided. A connecting shaft 2 10 with a coupling is rotatably installed on the side of the support plate 2 facing the bearing test piece 2.

[0032] As one implementation, the connecting shaft 2 10 can provide stable rotational support for the other end of the bearing test piece 2 to ensure stable rotation of the bearing test piece 2 during testing.

[0033] Please see Figures 1-2 The bidirectional lead screw 73 is rotatably connected to the slide groove 72, and the bidirectional lead screw 73 passes through the linkage clamp 71 and is threadedly connected to the linkage clamp 71.

[0034] In one implementation, after the bidirectional lead screw 73 rotates, it will cause the two linkage clamping plates 71 to move closer to each other along the slide groove 72 under the action of thread transmission, so as to clamp and limit the bearing test piece 2 while the linkage clamping plates 71 move closer to each other.

[0035] Please see Figures 1-3 The linkage clamp 71 is slidably engaged with the slide groove 72. The linkage clamp 71 consists of a T-shaped slider 121 with a screw hole and two clamping blocks symmetrically installed on both sides of the top of the T-shaped slider 121.

[0036] As one implementation method, after the two clamping blocks on the linkage clamping plate 71 clamp the middle part of the bearing test piece 2, a certain external part is still reserved on the upper side of the middle part of the bearing test piece 2 to facilitate the convenient application of radial load.

[0037] Please see Figures 1-2 Motor 74 is connected to the double-acting lead screw 73 via a coupling, and motor 74 is bolted to the adjusting seat 8.

[0038] In one implementation, motor 74 is mainly used to provide power for the rotation of the bidirectional lead screw 73 to ensure that the bidirectional lead screw 73 rotates as needed.

[0039] Please see Figure 1 , Figure 2 and Figure 4 The telescopic part of the electric telescopic rod 111 passes through the top of the bracket 1 and is bolted to the pressure plate 112. The pressure sensor 113 is bolted to the pressure plate 112. The pressure plate 112 is located directly above the middle of the bearing test piece 2.

[0040] In one implementation, the electric telescopic rod 111 is mainly used to control the up and down movement of the pressure plate 112 in order to apply a radial load to the bearing test piece 2.

[0041] Please see Figure 1 , Figure 2 and Figure 5 Motor 123 is connected to screw 126 via a coupling. Screw 126 passes through slider 121 and is threadedly connected to slider 121. Slider 121 is bolted to adjusting seat 8.

[0042] In one implementation, after the motor 123 drives the screw 126 to rotate, the slider 121 can slide along the slide groove 122, so that the adjusting seat 8 can be moved while the slider 121 slides, thereby applying axial load to the bearing test piece 2.

[0043] Please see Figure 1 , Figure 2 and Figure 5 Pressure sensor 125 is bolted to the vertical plate 124, and pressure sensor 125 faces the side wall of the adjusting seat 8.

[0044] As one implementation method, the adjustment seat 8 will apply pressure to the pressure sensor 125 after it moves. The axial load of the bearing test piece 2 can be controlled by the value displayed by the pressure sensor 125 on the external testing equipment.

[0045] The specific working principle is as follows: When clamping and limiting the middle part of the bearing test piece 2, the middle part of the bearing test piece 2 is first placed between two linkage clamping plates 71. Then, under the action of motor 1 74, the bidirectional lead screw 73 rotates. After the bidirectional lead screw 73 rotates, under the action of thread transmission, the two linkage clamping plates 71 move closer to the bearing test piece 2 simultaneously, realizing automatic clamping and limiting of the middle part of the bearing test piece 2. Then, the two ends of the bearing test piece 2 are connected to connecting shaft 1 3 and connecting shaft 2 10 respectively, and the test platform is connected to an external bearing testing instrument. Then, simply start the test motor 5 to drive the bearing test piece 2 to rotate, and the bearing performance can be tested during the rotation. During the test, the pressure plate 112 is pressed by the electric telescopic rod 111. Pressing the bearing test piece 2 onto its upper side allows for the application of a radial load. The magnitude of the radial load can be controlled by pressure sensor 113. Under the action of motor 123, screw 126, and slider 121, the adjusting seat 8 can be moved closer to the vertical plate 124 to apply an axial load to the bearing test piece 2. The magnitude of the axial load can be controlled by pressure sensor 125. This enables the testing of bearing performance under different radial and axial loads. In this testing method, the clamping and limiting of the bearing test piece 2 and the application of radial and axial loads are all automatically achieved, eliminating the tedious manual operation and making the bearing testing process more continuous and efficient.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bearing multi-directional load testing bench, characterized in that: The system includes a support platform (6), an adjustment seat (8) installed at the top center of the support platform (6), and a quick-clamping mechanism (7) installed at the upper center of the adjustment seat (8). The quick-clamping mechanism (7) includes a linkage clamping plate (71), a slide groove (72), a double-acting screw (73), and a motor (74). The slide groove (72) is located at the top center of the adjustment seat (8), and the double-acting screw (73) is installed in the middle of the slide groove (72). There are two linkage clamping plates (71), which are symmetrically installed on the support platform (6). Two sections of threaded parts with opposite directions are on the bidirectional lead screw (73). The motor (74) is installed on one side wall of the adjusting seat (8) directly opposite the end of the bidirectional lead screw (73). An inverted U-shaped bracket (1) is installed on both sides of the upper end of the adjusting seat (8). A load application mechanism (11) is installed at the middle of the top of the bracket (1). The load application mechanism (11) includes an electric telescopic rod (111), a pressure plate (112), and a pressure sensor (113). The electric telescopic rod is installed at the middle of the top of the bracket (1). The pressure plate (112) is connected to the telescopic part of the electric telescopic rod (111), and the pressure sensor (113) is installed in the middle of the bottom end of the pressure plate (112); a load application mechanism (12) is also installed on the support platform (6) on one side of the adjusting seat (8). The load application mechanism (12) includes a slider (121), a slide groove (122), a motor (123), a vertical plate (124), a pressure sensor (125), and a screw (126). The slide groove (122) is opened on the top of the support platform (6). At the middle of the end, the screw (126) is installed in the middle of the slide groove (122), the motor (123) is connected to the power input end of the screw (126), the slider (121) is installed in the middle of the bottom end of the adjusting seat (8), the upright plate (124) is installed on the support platform (6) on one side of the adjusting seat (8), and the pressure sensor (125) is installed on the side wall of the upright plate (124) facing the adjusting seat (8); a bearing test piece (2) is also provided between the two linkage clamps (71).

2. The bearing multi-directional load testing bench according to claim 1, characterized in that: The top of the support platform (6) is provided with a support plate (4) at one end of the bearing test piece (2). A connecting shaft (3) with a coupling is installed on the support plate (4). A test motor (5) is installed on the side of the support plate (4) facing away from the connecting shaft (3).

3. The bearing multi-directional load testing bench according to claim 2, characterized in that: The top of the support platform (6) is provided with a support plate two (9) at the other end of the bearing test piece (2). A connecting shaft two (10) with a coupling is rotatably installed on the side of the support plate two (9) facing the bearing test piece (2).

4. The bearing multi-directional load testing bench according to claim 1, characterized in that: The bidirectional lead screw (73) is rotatably connected to the slide groove (72), and the bidirectional lead screw (73) passes through the linkage clamp (71) and is threadedly connected to the linkage clamp (71).

5. A bearing multi-directional load testing bench according to claim 4, characterized in that: The linkage clamp (71) is slidably engaged with the slide groove (72). The linkage clamp (71) is composed of a T-shaped slider (121) with a screw hole and two clamping blocks symmetrically installed on both sides of the top of the T-shaped slider (121).

6. The bearing multi-directional load testing bench according to claim 5, characterized in that: The motor (74) is connected to the bidirectional lead screw (73) by a coupling, and the motor (74) is bolted to the adjusting seat (8).

7. The bearing multi-directional load testing bench according to claim 1, characterized in that: The telescopic part of the electric telescopic rod (111) passes through the top of the bracket (1) and is bolted to the pressure plate (112). The pressure sensor (113) is bolted to the pressure plate (112). The pressure plate (112) is located directly above the middle of the bearing test piece (2).

8. A bearing multi-directional load testing bench according to claim 1, characterized in that: The second motor (123) is connected to the screw (126) by a coupling. The screw (126) passes through the slider (121) and is threadedly connected to the slider (121). The slider (121) is bolted to the adjusting seat (8).

9. A bearing multi-directional load testing bench according to claim 8, characterized in that: The second pressure sensor (125) is bolted to the vertical plate (124), and the second pressure sensor (125) faces the side wall of the adjustment seat (8).

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