Bearing performance tester

Abstract

The utility model relates to the technical field of bearing testing, and discloses a bearing performance tester which comprises a rack, a workbench is arranged on the rack, a lifting assembly is arranged above the workbench, the lifting assembly comprises a support capable of moving along the Z axis, a measuring assembly is arranged on the support, and the measuring assembly is connected with the workbench. The measuring assembly comprises a plurality of detection heads which are distributed in the circumferential direction of the bearing, and the detection heads can move in the radial direction; through cooperative use of the workbench and the measuring assembly, the bearing is arranged on the outer side of the moving column in a sleeving mode, a shifting block is shifted to enable a rotating disc to rotate, the moving column is driven to move along a guide groove, the bearing is fixed, it is guaranteed that the bearing is located in the center of the rotating disc, and four detection heads are used for synchronous adjustment; the four point positions of the end face of the bearing can be measured at the same time, repeated measurement is not needed, operation is easy, and measurement efficiency is high.

Description

Technical Field

[0001] This application relates to the technical field of bearing testing, and particularly to a bearing performance tester. Background Art

[0002] During the production and processing of bearings, it is often necessary to test the performance of bearings. Among them, the hardness detection of bearings is relatively common. Generally, a hardness tester is used to detect multiple points of a single bearing.

[0003] When the existing hardness tester is used to detect the hardness of bearings, the operator needs to adjust the position so that the detection point is aligned with the detection head. When a certain point is detected, the bearing needs to be rotated by a certain angle manually to detect the next point, which reduces the detection efficiency. Utility Model Content

[0004] In order to solve the problem that the existing hardness tester uses single-point measurement when detecting the hardness of bearings, needs to repeatedly adjust the position of the bearing, and has low detection efficiency, this application provides a bearing performance tester.

[0005] The bearing performance tester provided by this application adopts the following technical solutions:

[0006] A bearing performance tester includes a frame. A workbench is arranged on the frame for positioning the bearing. An elevating assembly is arranged above the workbench. The elevating assembly includes a bracket that can move along the Z-axis. A measuring assembly is arranged on the bracket. The measuring assembly includes a plurality of detection heads distributed circumferentially along the bearing, and the detection heads can move radially.

[0007] Preferably, the workbench includes a tray rotatably arranged on the frame. A turntable is rotatably arranged inside the tray. A plurality of arc-shaped chutes are arranged circumferentially on the turntable. A support disk is arranged above the turntable on the tray. The support disk is provided with a plurality of guide grooves. Moving columns are slidably arranged in the guide grooves, and the moving columns are respectively slidably connected with the corresponding arc-shaped chutes.

[0008] Preferably, a chute is arranged on the side surface of the tray, and a dial is slidably arranged in the chute and connected with the turntable.

[0009] Preferably, the measuring assembly further includes a connecting plate arranged on the frame. A plurality of moving grooves are arranged on the connecting plate. The detection heads are slidably arranged in the moving grooves. A plurality of moving plates are arranged in pairs on the connecting plate, and the corresponding two moving plates can move towards and away from each other.

[0010] Preferably, a plurality of sliding grooves are arranged on the moving plates, and the detection heads are respectively slidably arranged in the corresponding sliding grooves.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] Through the coordinated use of the workbench and the measuring assembly, the bearing sleeve is arranged on the outside of the moving column, the dial block is turned to rotate the turntable, and the moving column is driven to move along the guide groove, so as to fix the bearing and ensure that the bearing is in the center of the turntable. By using the synchronous adjustment of the four detection heads, the four points on the end face of the bearing can be measured simultaneously without repeated measurements. Compared with the existing technology, it has the effects of simple operation and high measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0014] Figure 2 is a schematic diagram of a second perspective stereoscopic structure of an embodiment of the application;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure from a third perspective of an embodiment of the application.

[0016] Explanation of the reference numerals: 1. Frame; 2. Workbench; 201. Tray; 202. Turntable; 203. Support plate; 204. Moving column; 3. Lifting assembly; 301. Telescopic rod; 302. Bracket; 303. Guide rod; 4. Measuring assembly; 401. Connecting plate; 402. Moving plate; 403. Bidirectional screw; 404. Detection head; 5. Shift block. DETAILED DESCRIPTION

[0017] The following is combined with Figures 1-3 This application is described in further detail.

[0018] The present application embodiment discloses a bearing performance tester. Figures 1-3 A bearing performance tester includes a frame 1 placed at a designated position. In order to ensure the stability of the installation and the test accuracy, four leveling feet are installed at the bottom of the frame 1, and manual leveling can be performed when the installation surface is uneven;

[0019] A workbench 2 is installed on the frame 1, and the workbench 2 includes a tray 201 rotatably installed on the frame 1, a turntable 202 is rotatably installed on the inner side of the tray 201, and a plurality of arc-shaped slide grooves distributed along the circumference of the turntable 202 are provided on the turntable 202, and a support plate 203 is installed on the tray 201, which adopts a detachable design, such as fixing the support plate 203 on the tray 201 by bolts, and the support plate 203 is located on the upper side of the turntable 202, and the support plate 203 is provided with a plurality of guide grooves radially along the turntable 202, and the plurality of guide grooves are distributed in a ring shape along the circumference of the turntable 202, and movable columns 204 are slidably installed in the guide grooves, and the movable columns 204 are slidably connected with the corresponding arc-shaped slide grooves respectively, and the number of the arc-shaped slide grooves, the guide grooves and the movable columns 204 are the same, and can be set according to the configuration, and shall not be less than three, refer to Figure 2 A slide groove is provided on the side of the tray 201, and a shift block 5 is welded on the side of the turntable 202. The shift block 5 is slidably installed in the slide groove. An anti-slip pad or damping can be added at the connection between the shift block 5 and the slide groove to increase the friction between the shift block 5 and the slide groove to prevent the shift block 5 from moving arbitrarily. By arranging the bearing sleeve on the outside of the moving column 204, the shift block 5 is shifted to make the turntable 202 rotate, and the moving column 204 is driven to move along the guide groove, so that any type of bearing can be fixed, and all bearings can be ensured to be at the center of the turntable 202, simplifying subsequent adjustment operations. If necessary, the tray 201 can also be rotated to realize the rotation of the support plate 203 and the bearing, so as to realize repeated measurement.

[0020] The frame 1 is also provided with a lifting assembly 3, which includes a telescopic rod 301 mounted on the frame 1, a bracket 302 mounted on the lower end of the telescopic rod 301, a plurality of guide rods 303 mounted on the bracket 302, the upper end of the guide rod 303 passes through the frame 1 and is slidably connected to the frame 1, and the telescopic rod 301 can be driven by an air source or a servo motor as required, see Figure 1 .

[0021] The bracket 302 is provided with a measuring assembly 4, which includes a connecting plate 401 installed on the frame 1, and a plurality of moving grooves are provided on the connecting plate 401 along the radial direction of the turntable 202, and the plurality of moving grooves are distributed along the circumference of the turntable 202, and a plurality of moving plates 402 are installed in pairs on the connecting plate 401, referring to Figure 2 The connecting plate 401 is rotatably mounted with two bidirectional screws 403. The two ends of the two bidirectional screws 403 pass through the corresponding moving plates 402 and are threadedly connected to the moving plates 402. The threads at the two ends of the bidirectional screws 403 are in opposite directions and have the same pitch. The moving plate 402 is mounted with a plurality of sliding grooves. A detection head 404 is slidably mounted in the sliding groove. The detection head 404 serves as the detection end of the hardness tester to detect the hardness performance of the bearing. The detection heads 404 are respectively mounted in the corresponding moving grooves. Figure 3The number of movable slots and detection heads 404 is the same, and can be set as needed. For example, the number of movable slots and detection heads 404 is four, and the number of movable plates 402 is two. The two bidirectional screws 403 are connected by a chain transmission unit to ensure the synchronous rotation of the two bidirectional screws 403. The driving mode of the bidirectional screw 403 can be selected as manual or electric as needed. In the present application, the hand wheel is turned to adjust, and the movable plate 402 is driven to move by rotating the bidirectional screw 403, thereby driving the detection head 404 to move. The limit guide of the movable slot and the sliding slot is used to make the detection head 404 move along the radial direction of the bearing so that it is aligned with the end face of the bearing. The telescopic rod 301 is extended and retracted to make the bracket 302 and the connecting plate 401 move along the Z axis, thereby completing the contact and separation of the detection head 404 and the bearing, and realizing the bearing test.

[0022] The implementation principle of a bearing performance tester in the embodiment of the present application is:

[0023] First, the bearing to be tested is sleeved on the outside of the moving column 204 on the tray 201, and the dial block 5 is turned to rotate the turntable 202. The arc-shaped slide groove on the turntable cooperates with the moving column 204 to drive the moving column to move along the guide groove on the support plate 203 until all the moving columns evenly clamp the bearing and ensure that the bearing is located at the center of the turntable.

[0024] Then, the bracket 302 and the measuring assembly 4 thereon are placed in a suitable initial position by extending and retracting the telescopic rod 301. It is ensured that the detection head 404 in the measuring assembly 4 is located above the bearing but has not yet touched it.

[0025] Then, the hand wheel is turned or the bidirectional screw 403 is driven to rotate by electric means. Since the threads at both ends of the bidirectional screw have opposite directions, the two moving plates 402 will move toward the center or the outside at the same time. The moving plate 402 drives the detection head 404 to move along the radial direction of the bearing until the detection head is aligned with the end face of the bearing.

[0026] Finally, the detection head 404 is brought into contact with the bearing to perform a performance test by further extending and retracting the telescopic rod 301. After the test is completed, the telescopic rod is retracted and the detection head is separated from the bearing.

[0027] The detection head 404 is usually connected to a data acquisition system, which can record various performance data of the bearing in real time. The data is processed and analyzed to evaluate whether the performance of the bearing meets the requirements. If necessary, the tray 201 can be rotated so that the support plate 203 rotates with the bearing to achieve re-inspection and change-point measurement.

[0028] If more than one bearing needs to be tested, repeat the above steps until all bearings have been tested.

[0029] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0030] Second, in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0032] The above are all the preferred embodiments of this application and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A bearing performance tester, comprising a frame (1), characterized in that: A workbench (2) is arranged on the frame (1) for positioning the bearing, a lifting assembly (3) is arranged above the workbench (2), the lifting assembly (3) comprises a bracket (302) movable along the Z axis, a measuring assembly (4) is arranged on the bracket (302), the measuring assembly (4) comprises a plurality of detection heads (404) distributed along the circumference of the bearing, and the detection heads (404) are movable in the radial direction.

2. A bearing performance tester according to claim 1, characterized in that: The workbench (2) comprises a tray (201) rotatably arranged on a frame (1), a turntable (202) rotatably arranged on the inner side of the tray (201), a plurality of arc-shaped sliding grooves distributed along the circumferential direction are arranged on the turntable (202), a support plate (203) is arranged on the upper side of the turntable (202) on the tray (201), a plurality of guide grooves are arranged on the support plate (203), a movable column (204) is slidably arranged in the guide groove, and the movable column (204) is slidably connected to the corresponding arc-shaped sliding grooves respectively.

3. A bearing performance tester according to claim 2, characterized in that: A slide groove is provided on the side of the tray (201), and a shifting block (5) connected to the rotating disk (202) is slidably provided in the slide groove.

4. A bearing performance tester according to claim 1, characterized in that: The measuring assembly (4) further comprises a connecting plate (401) arranged on the frame (1), the connecting plate (401) being provided with a plurality of movable grooves, the detection head (404) being slidably arranged in the movable grooves, the connecting plate (401) being provided with a plurality of movable plates (402) arranged in pairs, and the corresponding two movable plates (402) being movable towards and away from each other.

5. A bearing performance tester according to claim 4, characterized in that: The movable plate (402) is provided with a plurality of sliding grooves, and the detection heads (404) are respectively slidably arranged in the corresponding sliding grooves.

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