Static testing device for torque sensor

Abstract

The utility model discloses a torque sensor static testing device, including bottom plate subassembly and two loading module, bottom plate subassembly is suitable for placing torque sensor, and torque sensor is suitable for connecting external acquisition equipment, two loading module is connected in bottom plate subassembly, and two loading module symmetrical setting in the both sides of torque sensor along the first direction, and loading module includes drive module, torsion balance and coupling, and the output of drive module, torsion balance, coupling and the input shaft of torque sensor are coaxial and are connected gradually along the first direction, to rotate the input shaft of torque sensor through drive module drive, and torsion balance connects external acquisition equipment and is suitable for measuring the output torque of drive module, to simulate a variety of working conditions to torque sensor and carry out the test, and effectively improve the test efficiency of centrally arranged torque sensor.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a static testing device for a torque sensor. Background Technology

[0002] For centrally located torque sensors, the commonly used loading test method is a dynamic device, which usually has one output terminal for connecting the input shaft of the torque sensor. During testing, the two input shafts of the centrally located torque sensor need to be tested sequentially, which has the problems of long test time and limited adaptability to various working conditions. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a static testing device for a torque sensor, which can simultaneously apply torque to both input shafts of a centrally located torque sensor, simulating the testing of the torque sensor under more diverse working conditions.

[0004] This utility model provides a static testing device for a torque sensor, used for testing a centrally located torque sensor, comprising: A base plate assembly is adapted to house the torque sensor, which is adapted to be connected to an external data acquisition device; Two loading modules are connected to the base plate assembly. The two loading modules are symmetrically arranged on both sides of the torque sensor along a first direction. Each loading module includes a drive module, a torque meter, and a coupling. The output end of the drive module, the torque meter, the coupling, and the input shaft of the torque sensor are coaxial along the first direction and connected in sequence to drive the input shaft of the torque sensor to rotate through the drive module. The torque meter is connected to the external acquisition device and is adapted to measure the output torque of the drive module.

[0005] According to some embodiments of the present invention, the base plate assembly includes a base plate, and at least one of the two loading modules is slidably connected to the base plate along the first direction.

[0006] According to some embodiments of the present invention, the base plate assembly further includes a first slide module, and the loading module is slidably connected to the substrate through the first slide module.

[0007] According to some embodiments of the present invention, the base plate assembly further includes a test positioning seat, which is connected to the base plate. The test positioning seat is provided with a positioning hole and a pre-positioning groove. The positioning hole is adapted to fit the housing of the torque sensor and is coaxially arranged with the coupling. The shape of the pre-positioning groove is adapted to at least a part of the housing of the torque sensor and is suitable for supporting the torque sensor.

[0008] According to some embodiments of the present invention, the test positioning seat is slidably connected to the substrate along the first direction.

[0009] According to some embodiments of the present invention, the base plate assembly further includes a second slide module, and the test positioning seat is slidably connected to the base plate through the second slide module.

[0010] According to some embodiments of the present invention, the substrate includes a first plate and a second plate arranged sequentially along the first direction and detachably connected, the first plate being provided with the first slide module, and the second plate being provided with the second slide module.

[0011] According to some embodiments of the present invention, the loading module further includes a mounting plate, a first side of which is adapted to pre-install the drive module and the torque meter, and a second side of which is adapted to connect the base plate assembly.

[0012] According to some embodiments of the present invention, the coupling is provided with a first insertion hole and a second insertion hole arranged sequentially and connected along the first direction. The first insertion hole is adapted to be inserted into the output end of the torque meter. A connecting hole is provided through the sidewall of the first insertion hole in the radial direction of the first insertion hole. The output end of the torque meter is provided with insertion holes that match the position and number of the connecting holes. The cross-section of the second insertion hole is spline-shaped and adapted to the input shaft of the torque sensor.

[0013] According to some embodiments of the present invention, the loading module further includes a display, which is communicatively connected to the torque meter and is adapted to display the torque value measured by the torque meter; And / or, The drive module includes a hand-operated rocker wheel and a worm gear reducer. The rotation center of the hand-operated rocker wheel is connected to the input end of the worm gear reducer, and the output end of the worm gear reducer is connected to the torque meter.

[0014] The present invention has at least the following beneficial effects: by setting independent loading modules on both sides of the torque sensor, various working conditions (the input torque of the two input shafts is the same, the input torque of the two input shafts is different, one of the two input shafts has no input torque, etc.) are simulated to test the torque sensor, which effectively improves the testing efficiency of the centrally located torque sensor.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of the static testing device for the torque sensor according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the support block of the torque sensor static testing device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the positioning block of the torque sensor static testing device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the coupling structure of the torque sensor static testing device according to an embodiment of the present invention.

[0017] Figure label: 100. Base plate assembly; 110. Base plate; 111. First plate; 112. Second plate; 120. First slide module; 130. Test positioning seat; 131. Support block; 1311. Pre-positioning groove; 132. Positioning block; 1321. Positioning hole; 140. Second slide module; 200 Loading module; 210 Drive module; 220 Torque meter; 230 Coupling; 231 First insertion hole; 232 Second insertion hole; 233 Connection hole; 240 Mounting plate. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0022] Please refer to Figure 1 This utility model provides a static testing device for a torque sensor, used for testing a centrally located torque sensor. The static testing device includes a base plate assembly 100 and two loading modules 200. The base plate assembly 100 is suitable for placing the torque sensor, which is suitable for connecting to an external acquisition device. The two loading modules 200 are connected to the base plate assembly 100 and are symmetrically arranged on both sides of the torque sensor along a first direction. Each loading module 200 includes a drive module 210, a torque meter 220, and a coupling 230. The output end of the drive module 210, the torque meter 220, the coupling 230, and the input shaft of the torque sensor are coaxial along the first direction and connected in sequence to drive the input shaft of the torque sensor to rotate through the drive module 210. The torque meter 220 is connected to an external acquisition device and is suitable for measuring the output torque of the drive module 210.

[0023] According to the static testing device for torque sensors in this embodiment of the present invention, when there is a testing requirement for torque sensors, the torque sensor is placed on the base plate assembly 100, and the input shafts on both sides of the torque sensor are connected to the output end of the drive module 210 through the coupling 230 and the torque meter 220. The torque meter 220 and the torque sensor are simultaneously connected to an external acquisition device. The two drive modules 210 independently drive the different input shafts of the torque sensor to rotate, and transmit the detection data of the torque sensor and the monitoring data of the torque meter 220 to the external acquisition device in real time.

[0024] According to the static testing device for torque sensors in this embodiment of the present invention, by setting independent loading modules 200 on both sides of the torque sensor, various working conditions (the input torque of the two input shafts is the same, the input torque of the two input shafts is different, one of the two input shafts has no input torque, etc.) are simulated to test the torque sensor, which effectively improves the testing efficiency of the centrally located torque sensor.

[0025] In this embodiment, the external acquisition device can be a microcontroller, a programmable controller, a mobile terminal, etc.

[0026] In some embodiments, combined with Figure 1 As shown, the base plate assembly 100 includes a base plate 110, and at least one of the two loading modules 200 is slidably connected to the base plate 110 along a first direction.

[0027] In this embodiment, torque sensors of different lengths can be quickly adapted by sliding the loading module 200, which greatly expands the application range; at the same time, it is beneficial for loading and unloading torque sensors.

[0028] In some embodiments, combined with Figure 1 As shown, the base plate assembly 100 also includes a first slide module 120, and the loading module 200 is slidably connected to the base plate 110 through the first slide module 120.

[0029] In this embodiment, compared with cylinders (which rely on air sources, have low positioning accuracy, and are difficult to finely adjust and lock in the middle position) and lead screw modules (which are costly and complex to control), the first slide module 120 achieves stepless, smooth, and precise displacement. After being adjusted to the correct position, it can provide extremely strong torsional rigidity, ensuring the stability of the loading module 200 during the test.

[0030] In some embodiments, combined with Figures 1 to 3 As shown, the base plate assembly 100 also includes a test positioning seat 130, which is connected to the base plate 110. The test positioning seat 130 is provided with a positioning hole 1321 and a pre-positioning groove 1311. The positioning hole 1321 is adapted to fit the housing of the torque sensor and is coaxially arranged with the coupling 230. The shape of the pre-positioning groove 1311 is adapted to at least part of the housing of the torque sensor and is suitable for bearing the torque sensor.

[0031] In this embodiment, coarse positioning and load bearing are achieved through the pre-positioning slot 1311, and precise positioning with the coupling 230 is achieved through the positioning hole 1321. Together, they form an efficient and accurate installation process, which enables the torque sensor to be quickly placed and stabilized, and ensures that the input shaft of the torque sensor and the output end of the drive module 210 maintain a high degree of coaxiality, fundamentally eliminating the test error caused by installation eccentricity.

[0032] In this embodiment, the test positioning base 130 also includes a support block 131 and a positioning block 132. The support block 131 is provided with a pre-positioning groove 1311, and the positioning block 132 is provided with a positioning hole 1321. Torque sensors of different sizes can be quickly adapted by replacing the support block 131 and the positioning block 132.

[0033] In some embodiments, the test positioning seat 130 is slidably connected to the substrate 110 along a first direction. By adjusting the sliding of the test positioning seat 130, the coupling 230 and the input shaft of the torque sensor can be quickly inserted and removed, which is beneficial for loading and unloading the torque sensor. Furthermore, the distance between the loading module 200 and the test positioning seat 130 can be adjusted to accommodate torque sensors of different lengths, greatly expanding the application range.

[0034] In some embodiments, combined with Figure 1 As shown, the base plate assembly 100 also includes a second slide module 140, and the test positioning seat 130 is slidably connected to the base plate 110 via the second slide module 140. Its advantages are the same as those of the first slide module 120, and will not be repeated here.

[0035] In some embodiments, combined with Figure 1 As shown, the substrate 110 includes a first plate 111 and a second plate 112 arranged sequentially along a first direction and detachably connected. The first plate 111 is provided with a first slide module 120, and the second plate 112 is provided with a second slide module 140.

[0036] In this embodiment, the design of the first plate 111 and the second plate 112 facilitates independent optimization or repair of the parts they each carry, without having to replace the entire testing device. This not only improves the equipment's versatility and future expansion capabilities but also reduces the overall maintenance cost under multi-model testing.

[0037] In this embodiment, the first plate 111 carries a first slide module 120 and a loading module 200, and the second plate 112 carries a second slide module 140, a test positioning seat 130, and a loading module 200. Alternatively, the first slide module 120 can be positioned below the loading module 200 on the second plate 112 to enable the sliding of the loading module 200.

[0038] In some embodiments, combined with Figure 1 As shown, the loading module 200 also includes a mounting plate 240, the first side of which is adapted to pre-install the drive module 210 and the torque meter 220, and the second side of which is adapted to connect the base plate assembly 100.

[0039] In this embodiment, by pre-assembling and calibrating the drive module 210 and torque meter 220 on the same mounting plate 240, an independent loading unit is formed. This not only ensures the coaxiality of the drive module 210 and torque meter 220, but also allows the entire loading module 200 to be quickly installed, disassembled or replaced as a whole, which greatly simplifies the assembly process with the base plate assembly 100.

[0040] In some embodiments, combined with Figure 1 and Figure 4As shown, the coupling 230 is provided with a first insertion hole 231 and a second insertion hole 232 arranged sequentially and connected along a first direction. The first insertion hole 231 is suitable for insertion into the output end of the torque meter 220. A connecting hole 233 is provided through the side wall of the first insertion hole 231 along the radial direction of the first insertion hole 231. The output end of the torque meter 220 is provided with insertion holes that match the position and number of connecting holes 233. The cross-section of the second insertion hole 232 is spline-shaped and is adapted to the input shaft of the torque sensor.

[0041] In this embodiment, when installing the coupling 230, the first insertion hole 231 is inserted into the output shaft of the torque meter 220, and then the connecting hole 233 and the insertion hole are fixed by the limiting screw. The second insertion hole 232 is inserted into the input shaft of the torque sensor. The connection hole 233 and the insertion hole on the side connected to the torque meter 220 ensure a backlash-free and high rigidity connection, guaranteeing connection reliability during multiple tests. The spline fit on the side connected to the input shaft of the torque sensor cleverly combines high torque transmission capability, automatic alignment function, and quick insertion and removal function, effectively protecting the sensor's delicate input shaft from damage, thereby improving batch testing efficiency while ensuring the accuracy of test data.

[0042] In some embodiments, the loading module 200 further includes a display (not shown) that is communicatively connected to the torque meter 220 and is adapted to display the torque value measured by the torque meter 220.

[0043] In this embodiment, a display that communicates directly with the torque meter 220 is provided, which can observe and compare the real torque values ​​applied to the torque sensors by the two drive modules 210 in real time. This greatly facilitates the equipment debugging and parameter setting in the early stage of testing (such as quickly adjusting the torque on both sides to the target value) and improves the human-computer interaction between the loading module 200 and the staff.

[0044] In some embodiments, combined with Figure 1 As shown, the drive module 210 includes a hand rocker wheel (not shown in the figure) and a worm gear reducer (not shown in the figure). The rotation center of the hand rocker wheel is connected to the input end of the worm gear reducer, and the output end of the worm gear reducer is connected to the torque meter 220.

[0045] In this embodiment, the inherent large reduction ratio of the worm gear reducer can transform the operator's manual input into precise and stable torque control of the input shaft of the torque sensor. Its reverse self-locking characteristic ensures that the torque remains stable at any position, providing a crucial steady-state environment for static testing. Furthermore, combined with the real-time, highly visible feedback of the output torque on the display, the operator can intuitively and accurately adjust and lock the torque to any target value by observing the displayed values. This achieves precision comparable to automatic control, eliminating the need for a complex electronic control system, thereby reducing costs while ensuring extremely high test quality.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A static testing device for a torque sensor, used for testing a centrally located torque sensor, characterized in that, include: A base plate assembly (100) is adapted to house the torque sensor, which is adapted to be connected to an external data acquisition device; Two loading modules (200) are connected to the base plate assembly (100). The two loading modules (200) are symmetrically arranged on both sides of the torque sensor along a first direction. The loading module (200) includes a drive module (210), a torque meter (220), and a coupling (230). The output end of the drive module (210), the torque meter (220), the coupling (230), and the input shaft of the torque sensor are coaxial along the first direction and connected in sequence to drive the input shaft of the torque sensor to rotate through the drive module (210). The torque meter (220) is connected to the external acquisition device and is suitable for measuring the output torque of the drive module (210).

2. The static testing device for a torque sensor according to claim 1, characterized in that, The base plate assembly (100) includes a base plate (110), and at least one of the two loading modules (200) is slidably connected to the base plate (110) along the first direction.

3. The static testing device for a torque sensor according to claim 2, characterized in that, The base plate assembly (100) further includes a first slide module (120), and the loading module (200) is slidably connected to the base plate (110) via the first slide module (120).

4. The static testing device for a torque sensor according to claim 3, characterized in that, The base plate assembly (100) further includes a test positioning seat (130), which is connected to the base plate (110). The test positioning seat (130) is provided with a positioning hole (1321) and a pre-positioning groove (1311). The positioning hole (1321) is adapted to fit the housing of the torque sensor and is coaxially arranged with the coupling (230). The shape of the pre-positioning groove (1311) is adapted to at least a part of the housing of the torque sensor and is suitable for supporting the torque sensor.

5. The static testing device for a torque sensor according to claim 4, characterized in that, The test positioning seat (130) is slidably connected to the substrate (110) along the first direction.

6. The static testing device for a torque sensor according to claim 5, characterized in that, The base plate assembly (100) further includes a second slide module (140), and the test positioning seat (130) is slidably connected to the base plate (110) via the second slide module (140).

7. The static testing device for a torque sensor according to claim 6, characterized in that, The substrate (110) includes a first plate (111) and a second plate (112) arranged sequentially and detachably connected along the first direction. The first plate (111) is provided with the first slide module (120), and the second plate (112) is provided with the second slide module (140).

8. The static testing device for a torque sensor according to any one of claims 1 to 7, characterized in that, The loading module (200) also includes a mounting plate (240), a first side of which is adapted to pre-install the drive module (210) and the torque meter (220), and a second side of which is adapted to connect the base plate assembly (100).

9. The static testing device for a torque sensor according to any one of claims 1 to 7, characterized in that, The coupling (230) is provided with a first insertion hole (231) and a second insertion hole (232) arranged sequentially and connected along the first direction. The first insertion hole (231) is adapted to be inserted into the output end of the torque meter (220). A connecting hole (233) is provided through the side wall of the first insertion hole (231) radially along the first insertion hole (231). The output end of the torque meter (220) is provided with insertion holes that match the position and number of the connecting holes (233). The cross-section of the second insertion hole (232) is spline-shaped and adapted to the input shaft of the torque sensor.

10. The static testing device for a torque sensor according to any one of claims 1 to 7, characterized in that, The loading module (200) also includes a display, which is communicatively connected to the torque meter (220) and is adapted to display the torque value measured by the torque meter (220); And / or, The drive module (210) includes a hand rocker wheel and a worm gear reducer. The rotation center of the hand rocker wheel is connected to the input end of the worm gear reducer, and the output end of the worm gear reducer is connected to the torque meter (220).

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