A gap testing device

Abstract

This utility model discloses a gap testing device, including a base with a worktable on it for placing the workpiece to be tested; a vertical support frame mounted on the worktable, on which a helical pressure device is mounted, and an adjustable testing fixture is mounted on the helical pressure device; a tension / compression sensor is installed between the helical pressure device and the adjustable testing fixture; and an axial support plate mounted on the worktable, on which an axial helical pressure device is mounted, and an axially adjustable testing fixture is mounted on the axial helical pressure device; an axial tension / compression sensor is installed between the axial helical pressure device and the axially adjustable testing fixture. The adjustable testing fixture includes a connecting plate with a connecting rod for connecting to the workpiece to be tested. This device features a simple structure, low production cost, and the ability to effectively, conveniently, and practically test the gap of the output shaft of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of engineering measurement technology, specifically to a gap testing device. Background Technology

[0002] In the photovoltaic industry, the application of rotary reducers can improve the power generation efficiency of photovoltaic panels. Generally, this type of reducer has a long service life and can withstand large loads. When under load, the clearance of the output shaft will change. Manually testing the clearance of the rotary reducer is relatively troublesome and has low accuracy and stability. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a clearance testing device, which has a simple structure, low production cost, and can effectively, conveniently, and practically test the clearance of the reducer output shaft.

[0004] This utility model provides a gap testing device, including

[0005] A base, on which a worktable is provided, the worktable being used to place the workpiece to be tested;

[0006] A vertical support frame is mounted on a workbench. A spiral pressure device is mounted on the vertical support frame. An adjustable testing fixture is provided on the spiral pressure device. A tension / compression sensor is installed between the spiral pressure device and the adjustable testing fixture.

[0007] An axial support plate is mounted on a workbench. An axial spiral pressure device is mounted on the axial support plate. An axially adjustable test fixture is provided on the axial spiral pressure device. An axial tension and compression sensor is installed between the axial spiral pressure device and the axially adjustable test fixture.

[0008] The adjustable testing fixture includes a connecting plate, on which a connecting rod is provided, which is used to connect to the workpiece to be tested.

[0009] Preferably, the connecting plate is square, and a connecting rod is provided at each of the four corners of the square, and the connecting rod is hinged to the connecting plate.

[0010] Preferably, the vertical support frame is provided with a first mounting base, the first mounting base is fixedly connected to the vertical support frame, and the first mounting base is threadedly connected to the spiral pressure device.

[0011] Preferably, the axial support plate is provided with a second mounting seat, the second mounting seat is fixedly connected to the axial support plate, and the second mounting seat is threadedly connected to the axial spiral pressure device.

[0012] Preferably, the axial support plate has a first through groove for the axial spiral pressure device to pass through the axial support plate and connect to the rotating shaft of the workpiece to be tested. The second mounting base is fixed to the axial support plate by bolts and nuts. Second through grooves are respectively provided on both sides of the first through groove, and the bolts pass through the second through grooves and are connected to the nuts.

[0013] Preferably, the helical pressure device is a T-shaped lead screw, and the axial helical pressure device is a T-shaped lead screw.

[0014] Compared with the prior art, this utility model has the following technical effects: the utility model has a simple structure and low production cost, and can effectively, conveniently and practically test the clearance of the reducer output shaft.

[0015] The screw pressure device applies tension (compression) to the output shaft of the reducer of the workpiece under test. The tension and compression sensor can monitor the magnitude of the tension (compression) in real time. The screw pressure device uses a T-shaped screw drive and has a self-locking function, which can maintain the applied force and facilitate sensor detection.

[0016] By monitoring the change in output shaft before and after applying tension (compression) to the workpiece, the clearance test of the reducer output shaft can be completed. Tension / compression sensors ensure the consistency of the applied force in each test, thereby reducing errors from purely manual measurements.

[0017] The axial, radial, and overturning (tilting) clearances of the reducer's output shaft can be measured separately. Taking the radial test as an example: During the test, a helical pressure device is used to apply a radial force to the reducer's output shaft. The first force is applied downwards. When the set load is reached, a dial indicator is used to record the position of the reducer's output shaft. The opposite force is applied again, and when the set load is reached, the position of the dial indicator is recorded again. The change in the dial indicator is the radial clearance of the reducer.

[0018] Similarly, the axial clearance of the reducer can be measured by applying an axial force to the output shaft; the overturning (horizontal flipping) clearance of the reducer's output shaft can be measured by applying an overturning (horizontal flipping) force to the reducer. When measuring the overturning (flipping) clearance, the adjustable test fixture of the reducer needs to be adjusted according to the applied force. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 Rear view;

[0022] Figure 3 This is a structural schematic diagram of the present invention from another angle;

[0023] Figure 4 This is a schematic diagram of the structure for measuring the overturning clearance of this utility model;

[0024] 1. Base; 2. Workbench; 3. Vertical support frame; 31. First mounting base; 32. Spiral pressure device; 33. Adjustable testing fixture; 33. Connecting plate; 331. Connecting rod; 332. Tension / compression sensor; 34. Axial support plate; 41. Axial spiral pressure device; 42. Axial adjustable testing fixture; 43. Axial tension / compression sensor; 44. Second mounting base; 45. First through slot; 46. Second through slot; 5. Workpiece to be tested. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model 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 this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] 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 or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] like Figure 1-4 As shown, a gap testing device includes a base 1, on which a worktable 2 is provided, the worktable 2 being used to place the workpiece 5 (rotary reducer) to be tested.

[0029] A vertical support frame 3 is mounted on the workbench 2. A first mounting base 31 is provided on the vertical support frame 3, and the first mounting base 31 is fixedly connected to the vertical support frame 3. A spiral pressure device 32 (a T-shaped lead screw is used in this embodiment) is mounted on the first mounting base 31, and the first mounting base 31 is threadedly connected to the spiral pressure device 32. An adjustable testing fixture 33 is provided on the spiral pressure device 32, and a tension / compression sensor 33 is installed between the spiral pressure device 32 and the adjustable testing fixture 33. The adjustable testing fixture 33 includes a connecting plate 331, which is square. Connecting rods 332 are provided on the connecting plate 331, with one connecting rod 332 at each of the four corners of the square shape. The connecting rods 332 are hinged to the connecting plate 331. The connecting rods 332 are used to connect to the workpiece 5 to be tested. A tension / compression sensor 34 is installed between the connecting plate 331 and the spiral pressure device 32. The tension / compression sensor 34 can detect the tension or pressure applied to the workpiece 5 by the spiral pressure device.

[0030] An axial support plate 4 is mounted on a workbench 2. An axial spiral pressure device 41 (a T-shaped lead screw is used in this embodiment) is mounted on the axial support plate 4. An axially adjustable test fixture 42 is provided on the axial spiral pressure device 41. An axial tension and pressure sensor 43 is installed between the axial spiral pressure device 41 and the axially adjustable test fixture 42.

[0031] Specifically, an axial spiral pressure device 41 is mounted on the axial support plate 4 via a second mounting base 44. A first through groove 45 is provided on the axial support plate 4. The first through groove 45 is used for the axial spiral pressure device 41 to pass through the axial support plate 4 and connect to the rotating shaft of the workpiece 5 to be tested. The second mounting base 44 is fixed to the axial support plate 4 by bolts and nuts. Second through grooves 46 are provided on both sides of the first through groove 45. The bolts pass through the second through grooves 46 and are connected to the nuts.

[0032] The screw pressure device applies tension (compression) to the output shaft of the reducer of the workpiece under test. The tension and compression sensor can monitor the magnitude of the tension (compression) in real time. The screw pressure device uses a T-shaped screw drive and has a self-locking function, which can maintain the applied force and facilitate sensor detection.

[0033] By monitoring the change in output shaft before and after applying tension (compression) to the workpiece, the clearance test of the output shaft can be completed. Tension / compression sensors ensure consistency of the applied force in each test, thereby reducing errors from purely manual measurements.

[0034] It can measure the axial, radial, and tilting (overturning) clearance of the output shaft of the workpiece under test.

[0035] Taking radial testing as an example: When conducting the test, a helical pressure device is used to first apply radial force to the output shaft of the workpiece to be tested. The first force is applied downwards. When the set load is reached, a dial indicator is used to record the position of the output shaft of the workpiece to be tested. Then, a force in the opposite direction is applied again. When the set load is reached, the position of the dial indicator is recorded again. The change in the dial indicator is the radial clearance of the workpiece to be tested.

[0036] Similarly, applying an axial force to the output shaft can measure the axial clearance of the workpiece under test; applying an overturning (horizontal flipping) force to the workpiece under test can measure the overturning clearance of the output shaft of the workpiece under test.

[0037] When measuring the overturning (tumbling) gap, the adjustable test fixture of the workpiece to be tested needs to be adjusted according to the force applied.

[0038] The tension and compression sensors can monitor the applied load in real time; the helical compression has a self-locking characteristic, which can maintain the applied load size; it can measure the axial, radial, and overturning (tumbling) clearance of the output shaft of the workpiece under test; it is suitable for measuring various models of photovoltaic products;

[0039] 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 gap testing device, characterized in that, include A base, on which a worktable is provided, the worktable being used to place the workpiece to be tested; A vertical support frame is mounted on a workbench. A spiral pressure device is mounted on the vertical support frame. An adjustable testing fixture is provided on the spiral pressure device. A tension / compression sensor is installed between the spiral pressure device and the adjustable testing fixture. An axial support plate is mounted on a workbench. An axial spiral pressure device is mounted on the axial support plate. An axially adjustable test fixture is provided on the axial spiral pressure device. An axial pressure sensor or an axial tension sensor is installed between the axial spiral pressure device and the axially adjustable test fixture.

2. The gap testing device according to claim 1, characterized in that, The adjustable testing fixture includes a connecting plate, on which a connecting rod is provided, which is used to connect to the workpiece to be tested.

3. The gap testing device according to claim 2, characterized in that, The connecting plate is square, and a connecting rod is provided at each of the four corners of the square, and the connecting rod is hinged to the connecting plate.

4. The gap testing device according to claim 1, characterized in that, The vertical support frame is provided with a first mounting base, which is fixedly connected to the vertical support frame and threadedly connected to the spiral pressure device.

5. The gap testing device according to claim 1, characterized in that, The axial support plate is provided with a second mounting seat, which is fixedly connected to the axial support plate and threadedly connected to the axial spiral pressure device.

6. The gap testing device according to claim 5, characterized in that, The axial support plate has a first through groove, which is used for the axial spiral pressure device to pass through the axial support plate and connect to the rotating shaft of the workpiece to be tested. The second mounting base is fixed to the axial support plate by bolts and nuts. The first through groove has a second through groove on each side, and the bolt passes through the second through groove and is connected to the nut.

7. The gap testing device according to claim 1, characterized in that, The spiral pressure device is a T-shaped lead screw, and the axial spiral pressure device is a T-shaped lead screw.

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