Torsion measuring equipment

Abstract

The utility model provides torsion measuring equipment, and relates to the technical field of torsion measurement, the torsion measuring equipment comprises a supporting assembly, the supporting assembly comprises a supporting frame and a supporting plate, the first end of the supporting frame is fixed on a workbench, and the supporting plate is arranged at the second end of the supporting frame; the fixing piece is arranged on the supporting plate and is used for fixing the first end of a measured object; the clamping piece is used for clamping the second end of the measured object; and the driving mechanism is arranged on the workbench and connected with the clamping piece, and drives the clamping piece to rotate through the driving mechanism so as to apply torsion to the measured object. According to the invention, the driving mechanism drives the measured object to rotate, so that the torsion measurement efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of measuring equipment, and in particular to a torque measuring device. Background Technology

[0002] Torque, the shear stress generated by torque on the cross-section of an object, is a key indicator for evaluating the reliability of a part's structural design. It reflects the object's ability to withstand torsional loads without failure and is crucial for the safety of manufacturing.

[0003] In related technologies, torque is usually measured by manually applying torque to the object being measured by an operator, but this method of torque measurement is inefficient. Utility Model Content

[0004] In view of this, this application provides a torque measuring device to overcome the deficiencies of at least one of the above aspects.

[0005] In a first aspect, embodiments of this application provide a torque measuring device, the torque measuring device comprising: a support assembly including a support frame and a support plate, wherein a first end of the support frame is fixed to a workbench and the support plate is disposed at a second end of the support frame; a fixing member disposed on the support plate for fixing the first end of the object to be measured; a clamping member for clamping the second end of the object to be measured; and a driving mechanism disposed on the workbench and connected to the clamping member, wherein the driving mechanism drives the clamping member to rotate to apply torque to the object to be measured.

[0006] Preferably, the driving mechanism includes a motor, the motor shaft of which is connected to the clamping member so as to drive the clamping member to rotate via the motor.

[0007] Preferably, a first through hole is formed on the support plate, and the fixing member includes a torque meter, wherein the torque meter includes: a housing, a gripper formed at the first end of the housing for clamping the first end of the object to be measured for fixing, a torque sensor disposed in the housing, the first end of the torque sensor being connected to the gripper so that the torque sensor detects the torque value borne by the second end of the object to be measured when it is twisted through the gripper, and a display element formed at the second end of the housing and disposed at the first through hole of the support plate for displaying the torque value detected by the torque sensor.

[0008] Preferably, the torque measuring device further includes: a first auxiliary plate disposed between the front end cover of the motor and the clamping member, and the first auxiliary plate being fixedly connected to the support frame, wherein a second through hole is formed on the first auxiliary plate; a second auxiliary plate disposed above the first auxiliary plate, and the second auxiliary plate being fixedly connected to the support frame, wherein the upper surface of the second auxiliary plate is in contact with the clamping member, and a third through hole is formed on the second auxiliary plate so that the rotating shaft of the motor passes through the second through hole and the third through hole and connects to the clamping member; and a spring sleeved on the rotating shaft and located between the first auxiliary plate and the second auxiliary plate.

[0009] Preferably, the torque measuring device further includes a height adjustment mechanism disposed between the support frame and the support plate, for adjusting the position of the support plate in the vertical direction.

[0010] Preferably, the support plate has a threaded through hole in the vertical direction, and the second end of the support frame has a bent portion that bends toward the support plate. The height adjustment mechanism includes: a screw that passes through the threaded through hole and is threadedly connected to the threaded through hole; and an adjustment knob that is disposed on the outer bending surface of the bent portion and connected to the screw. By rotating the adjustment knob, the screw drives the support plate to move.

[0011] Preferably, the torque measuring device further includes: a limiting block disposed at one end of the support frame away from the adjusting knob, the limiting block having a fourth through hole, and the end of the screw away from the adjusting knob passing through the fourth through hole.

[0012] Preferably, the height adjustment mechanism further includes: a scale plate, which is fixedly connected to the support frame. The outer surface of the scale plate is provided with scale lines and a scale pointer. The scale pointer is disposed on a first side end of the support plate and can extend to a second side of the scale plate in the length direction, so as to indicate the height position of the support plate by means of the scale pointer when the support plate is moved.

[0013] Preferably, the torque measuring device further includes: a touch screen for receiving motor speed input by a user; and a processor electrically connected to the touch screen and the motor, for controlling the motor to operate according to the motor speed received from the touch screen.

[0014] Preferably, the torque measuring device further includes a control box, which is movably placed on the workbench, wherein the first end of the support frame is fixed to the control box, the touch screen is disposed on the control box, the processor is disposed inside the control box, and wiring is laid inside the control box between the processor and the touch screen, and between the processor and the motor.

[0015] This application provides a torque measuring device, relating to the technical field of torque measurement. The torque measuring device includes a support assembly, comprising a support frame and a support plate. The first end of the support frame is fixed to a worktable, and the support plate is disposed at the second end of the support frame. A fixing member is disposed on the support plate for fixing the first end of the object being measured. A clamping member is used to clamp the second end of the object being measured. A driving mechanism is disposed on the worktable and connected to the clamping member. The driving mechanism drives the clamping member to rotate, thereby applying torque to the object being measured. This application improves the efficiency of torque measurement by using a driving mechanism to drive the object being measured to rotate.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 One of the structural schematic diagrams of the torque measuring device provided in the embodiments of this application is shown;

[0019] Figure 2 The second schematic diagram of the torque measuring device provided in the embodiment of this application is shown.

[0020] Reference numerals: 101-Touchscreen; 102-Control box; 103-Fume hood; 2-Support assembly; 201-Support frame; 202-Support plate; 2031-First auxiliary plate; 2032-Second auxiliary plate; 3-Torque meter; 301-Grip clamp; 302-Display component; 4-Clamping component; 501-Motor; 502-Spring; 6-Height adjustment mechanism; 601-Limit block; 602-Screw; 6021-Adjustment knob; 603-Scale plate; 604-Scale pointer; 7-Protective cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0022] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or component 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 the utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Existing torque measurement devices are generally operated manually. However, the manual torque method makes it difficult to maintain a constant torque speed, affecting the accuracy and stability of torque measurement. In addition, existing devices lack the function of quantitatively setting the torque speed, which means that users cannot accurately control the test conditions, thus limiting the accuracy of torque measurement. At the same time, the fixed height of existing torque measurement devices makes them unable to flexibly adapt to objects of different lengths. Furthermore, relying on manual naked-eye recording of measurement results during torque recording is not only inefficient, but also introduces large errors due to human factors, making it difficult to meet the requirements of high-precision measurement.

[0026] To address at least one of the problems mentioned above, this application provides a torque measuring device, which aims to solve at least one of the problems that the torsional speed is difficult to keep constant, cannot be quantified, and cannot be adapted to objects of different lengths. Specific embodiments are described below.

[0027] Example:

[0028] Figure 1 One of the structural schematic diagrams of the torque measuring device provided in the embodiments of this application is shown.

[0029] like Figure 1 As shown, the torque measuring device provided in this application embodiment includes a support component 2, a fixing component, a clamping component 4, and a drive mechanism.

[0030] Specifically, the support assembly 2 includes a support frame 201 and a support plate 202. The first end of the support frame 201 is fixed to the workbench. The support assembly 2 serves as the base and support structure for the entire device. The support frame 201 can be a structure that provides support and stability, such as a table frame or tripod. The support plate 202 is installed at one end of the support frame 201, providing a flat surface for mounting other components. The support plate 202 is located at the second end of the support frame 201. In this embodiment, the support assembly 2 includes a rectangular base, a rectangular back plate, and a triangular support frame. The triangular support frame is perpendicular to both the rectangular base and the rectangular back plate, forming a stable support structure.

[0031] The fixing component is mounted on the support plate 202 and is used to fix the first end of the object under test. The fixing component is used to fix the first end (the static end) of the object under test so as to perform torque testing and ensure that the object under test will not move or leave the test position due to torque during the test.

[0032] The clamping member 4 is used to clamp the second end of the object being measured. The clamping member 4 is used to clamp the second end (the dynamic end) of the object being measured so that torque can be applied through the drive mechanism, ensuring that the torque is effectively transmitted to the object being measured, while allowing the object to rotate freely under torque. The clamping member 4 can be an adjustable pair of pliers, a chuck, or a collet. In this embodiment, the clamping member 4 includes a circular base, an L-shaped fixed end, and a rectangular movable end. The top end of the object being measured is placed between the L-shaped fixed end and the rectangular movable end, and the clamping function of the top end of the object being measured is achieved by rotating the bolt.

[0033] The drive mechanism is mounted on the worktable and connected to the clamping member 4. The drive mechanism drives the clamping member 4 to rotate, thereby measuring the torque of the object being measured. The drive mechanism is the component that provides rotational power, i.e., torque. It is typically connected to the clamping member 4 and is used to drive the object being measured to rotate. The drive mechanism can include a motor 501, a reducer, a transmission device, etc., and is used to control the second end of the object being measured to rotate at a uniform speed. In this embodiment, the drive mechanism is a motor 501. The motor 501 includes a cuboid base mounted on the worktable. The outer shell of the motor 501 is cylindrical. The rotating shaft of the motor 501 is connected to the clamping member 4, so that the motor 501 drives the clamping member 4 to rotate.

[0034] In some embodiments, this application can also directly measure and obtain torque values ​​using torque meter 3.

[0035] like Figure 1 As shown, the fixing component includes a torque meter 3, which includes a housing, a gripper 301, a torque sensor, and a display 302. The torque meter 3 is an instrument for measuring torque. It converts torque into a quantifiable numerical value for display through an internal mechanism. The housing of the torque meter 3 is used to protect the interior of the torque meter 3 and can be made of a strong and durable material.

[0036] Specifically, a gripper 301 is formed at the first end of the outer casing and is used to clamp the first end of the object to be measured for fixation. The gripper 301 is located at the first end of the outer casing and functions similarly to a clamp or pliers. The gripper 301 can be designed as a stable and easy-to-operate structure to tightly clamp the object or component to be measured to ensure stable measurement when torque is applied. The shape of the gripper 301 can flexibly adapt to adjustable grippers of objects of different sizes to achieve torque measurement.

[0037] Specifically, a torque sensor is housed within the housing to detect the torque value experienced by the second end of the object being measured when it is twisted. The torque sensor is connected to the gripper, and this connection mechanism includes, but is not limited to, pins, bolts, or other fasteners to ensure that the torque sensor can accurately sense the torque changes transmitted from the gripper. When the object being measured is clamped in the gripper and begins to rotate under the drive of a motor, the gripper generates torque, which is transmitted to the torque sensor through the connection mechanism. The torque sensor contains highly sensitive elements that can convert the received torque into electrical signals or other forms of measurable signals. These signals can then be captured and processed by a data acquisition system to obtain the torque value experienced by the object being measured.

[0038] Specifically, the display element 302 is formed at the second end of the housing and arranged at the first through hole of the support plate 202. It is used to display the torque value detected by the torque sensor. The display element 302 can be a scale, and the operator records the torque value according to the data pointed to by the pointer on the scale. In addition, the display element 302 can also be an electronic display screen, which can directly output the measurement results of the torque meter 3.

[0039] like Figure 1 As shown, the torque measuring device also includes a first auxiliary plate 2031, a second auxiliary plate 2032, and a spring 502.

[0040] Specifically, the first auxiliary plate 2031 is disposed between the front end cover of the motor 501 and the clamping member 4, and one end of the first auxiliary plate 2031 is fixedly connected to the support frame 201. A second through hole is formed on the first auxiliary plate 2031. The second auxiliary plate 2032 is disposed above the first auxiliary plate 2031, and one end of the second auxiliary plate 2032 is fixedly connected to the support frame 201. The upper surface of the second auxiliary plate 2032 is in contact with the clamping member 4. A third through hole is formed on the second auxiliary plate 2032 so that the rotating shaft of the motor 501 passes through the second through hole and the third through hole to connect with the clamping member 4. A rectangular block for stabilization is also disposed between the first auxiliary plate 2031 and the second auxiliary plate 2032.

[0041] Specifically, spring 502 is sleeved on the rotating shaft and located between the first auxiliary plate 2031 and the second auxiliary plate 2032. The main function of spring 502 is to buffer and dampen vibration. By sleeved on the rotating shaft, the clamping member 4 and the rotating shaft of motor 501 form a certain elastic connection between the second through hole and the third through hole through spring 502. The spring acts as an isolation layer, which can reduce the impact of vibration of motor 501 rotating shaft directly transmitted to clamping member 4 on subsequent measurements, thereby reducing the interference of vibration on measurement results.

[0042] In some embodiments, the torque measuring device further includes a height adjustment mechanism 6, which includes a screw 602, an adjustment knob 6021, a limit block 601, a scale plate 603, and a scale pointer 604. The height adjustment mechanism 6 is a mechanism for adjusting the vertical position of the support plate 202, and can be implemented through a threaded connection, a slide rail, or other mechanical structure. This allows the height adjustment mechanism 6 to adjust the height of the support plate 202 according to the size, shape, or testing requirements of the object being measured, ensuring the accuracy and stability of the test.

[0043] In one example, the support plate 202 is L-shaped. The horizontal plate of the L-shaped plate is used to fix the torque meter 3. A threaded through hole is formed in the vertical direction of the vertical plate of the L-shaped plate. A screw 602 passes through the threaded through hole and is threadedly connected to it. An adjusting knob 6021 is located on the outer bending surface of the bent portion of the support frame 201 away from the worktable and is connected to the screw 602. Rotating the adjusting knob 6021 rotates the screw 602, thereby moving the support plate 202 along the axial direction of the screw 602 via the threaded connection. In the threaded height adjustment mechanism 6, the screw 602 is connected to the support frame 201 and the support plate 202 via a threaded connection. When the screw 602 rotates, it moves linearly along its own axial direction, thereby raising or lowering the support plate 202. The adjusting knob 6021 is a manually operated component that can be connected to the screw 602 or other rotating components for convenient rotation of these components.

[0044] Specifically, a limiting block 601 is located at the end of the screw 602 furthest from the adjusting knob 6021 and is fixedly connected to the support frame 201. A fourth through hole is formed on the limiting block 601, through which the screw 602 passes. The limiting block 601, located at the end of the screw 602 furthest from the adjusting knob 6021 and fixedly connected to the support frame 201, allows the screw 602 to pass through through the fourth through hole, but restricts the range of movement of the support frame 201 along the axial direction of the screw 602, thereby preventing the support plate 202 from being excessively raised or lowered.

[0045] In another example, a pair of parallel slide rails can be installed on both sides of the support frame 201 along its axial direction, and the support plate 202 can be equipped with a slider that matches the slide rails on the side near the support frame, allowing it to slide along the slide rails. This slide rail and slider structure design allows the support plate 202 to slide smoothly and without obstruction on the support frame 201 along the extension direction of the slide rails. At the same time, in order to limit the sliding range of the support plate 202 and prevent it from disengaging from the slide rails due to excessive lifting or lowering, a limiting block 601 can be fixedly connected to the end of the support frame 201 away from the adjusting knob 6021. When the support plate 202 descends to a certain position along the slide rails, the limiting block 601 will contact the support plate 202, thereby preventing it from continuing to move and ensuring that damage or safety hazards caused by excessive adjustment of the support plate 202 are avoided.

[0046] Specifically, the scale plate 603 is rectangular. A first side of the scale plate 603 along its length is fixedly connected to the support frame 201. The outer surface of the scale plate 603 has scale lines. A scale pointer 604 is positioned on the first side of the vertical plate of the L-shaped plate, and the scale pointer 604 can contact the second side of the scale plate 603 along its length. This allows the scale pointer 604 to indicate the height position of the support plate 202 when it is moved. The scale plate 603 can be a flat plate with scale lines, and the scale pointer 604 is an indicating component used in conjunction with the scale plate 603 to indicate the current value. The scale plate 603 is fixed to the side of the support frame 201 to display the height position of the support plate 202, while the scale pointer 604 is positioned on the vertical plate of the L-shaped plate and moves with the support plate 202 to indicate the current height value.

[0047] In some embodiments, this application may also include adjustable settings for motor speed and running time.

[0048] Figure 2 The second schematic diagram of the torque measuring device provided in the embodiment of this application is shown.

[0049] like Figure 2 As shown, the torque measuring device also includes a touch screen 101, a processor, a control box 102, and a protective cover 7.

[0050] Specifically, the touchscreen 101 is used to receive the rotational speed of the motor 501 input by the user. The torque measuring device that automatically measures torque can provide a user interface on the touchscreen 101, allowing the operator to input test parameters, such as rotational speed and test time, via the touchscreen. After input, the controller receives the command and starts the motor 501 to rotate one end of the object under test at the set speed. The torque meter 3 measures the torque experienced by the object under test during rotation. The torque meter 3 includes a torque sensor and a data processing unit. The torque sensor senses the torque change, and the data processing unit converts the signal into a readable value and displays the measurement result on the touchscreen 101. Alternatively, a CCD module can be added to the display 302 of the torque meter 3 to record the real-time fluctuation of the pointer on the display 302, calculate the position fluctuation of the pointer on the torque meter 3, output the torque versus time curve, the maximum value and average value of the torque, and send them to the touchscreen 101. In addition, the height adjustment mechanism 6 can also be adjusted by inputting parameters through the touch screen 101 to stabilize the position of the object being measured. Specifically, after the system is started, the height adjustment mechanism 6 is initialized to an initial position according to the preset value. A position sensor can be installed on the fixed part to detect the position information of the fixed part in real time. When the fixed part moves close to the target position, the position sensor will start to work and feed back the detected position information to the processor. The processor compares the feedback position information with the preset target position, calculates the deviation value, and controls the height adjustment mechanism 6 to make fine adjustments until the object being measured is stable in the target position.

[0051] Specifically, the processor is connected to both the touchscreen 101 and the motor 501 to control the motor 501's movement based on the motor 501's rotational speed received from the touchscreen 101. The processor processes input commands from the screen assembly, controls the height adjustment mechanism 6, and controls the operation of the motor 501 to ensure the smooth operation of the entire measurement process. The placement of the processor depends on the specific requirements of the system design. For example, the processor can be integrated inside the torsional force measuring device, or placed inside a storage box or in a nearby fume hood 103. The specific placement needs to consider factors such as heat dissipation, ease of maintenance, and electromagnetic interference.

[0052] Specifically, the control box 102 is movably placed on the workbench. The first end of the support frame 201 is fixed to the control box 102. The touch screen 101 is mounted on the control box 102. The processor is arranged inside the control box 102. Wiring between the processor and the touch screen 101, and between the processor and the motor 501, is laid out inside the control box 102. A protective cover is installed outside the motor 501 and spring 502 to protect them from external damage and contamination, and also helps reduce the noise of the motor 501 during operation. The control box 102 is a closed container used to install and protect various control components and wiring to ensure the safe and stable operation of the equipment. The control box 102 provides space for installing components such as the touch screen 101 and the processor, allowing these components to connect and communicate via internal wiring. It also provides protection against dust, water, and electromagnetic interference. The control box 102 can be made of metal or plastic, with a robust casing and suitable heat dissipation design. Inside, circuit boards, connectors, cables, and other components are arranged according to the needs of the equipment to realize the connection and control between the touch screen 101, the processor, and the motor 501. The control box 102 can be moved and placed on a workbench for easy adjustment and operation by the user as needed. The control box is also equipped with three knobs for setting the motor switch and speed. The motor 501 can be started by pressing the first button, and the second and third knobs can be used to adjust the speed of the motor 501.

[0053] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A torque measuring device, characterized in that, The torque measuring device includes: A support assembly includes a support frame and a support plate, wherein a first end of the support frame is fixed to a workbench and the support plate is disposed at a second end of the support frame; A fixing element, provided on the support plate, is used to fix the first end of the object being measured; A clamping element for holding the second end of the object being measured; A drive mechanism is mounted on the worktable and connected to the clamping member. The drive mechanism drives the clamping member to rotate so as to apply torque to the object being measured.

2. The torque measuring device according to claim 1, characterized in that, The driving mechanism includes a motor, the motor shaft of which is connected to the clamping member so as to drive the clamping member to rotate via the motor.

3. The torque measuring device according to claim 2, characterized in that, A first through hole is formed in the support plate, and the fixing member includes a torque meter. The torque meter includes: outer shell, A gripper, formed at the first end of the outer casing, is used to clamp the first end of the object being measured for fixation. A torque sensor is disposed within the housing. A first end of the torque sensor is connected to the gripper, allowing the torque sensor to detect the torque value experienced by the second end of the object being measured when it is twisted. A display element is formed at the second end of the housing and disposed at the first through hole of the support plate for displaying the torque value detected by the torque sensor.

4. The torque measuring device according to claim 2, characterized in that, The torque measuring device also includes: A first auxiliary plate is disposed between the front end cover of the motor and the clamping member, and the first auxiliary plate is fixedly connected to the support frame. A second through hole is formed on the first auxiliary plate. The second auxiliary plate is disposed above the first auxiliary plate and is fixedly connected to the support frame. The upper surface of the second auxiliary plate is in contact with the clamping member. A third through hole is formed on the second auxiliary plate so that the rotating shaft of the motor passes through the second through hole and the third through hole to connect with the clamping member. A spring is sleeved on the rotating shaft and located between the first auxiliary plate and the second auxiliary plate.

5. The torque measuring device according to claim 1, characterized in that, The torque measuring device also includes: A height adjustment mechanism is provided between the support frame and the support plate to adjust the position of the support plate in the vertical direction.

6. The torque measuring device according to claim 5, characterized in that, The support plate has a threaded through hole in the vertical direction, and the second end of the support frame has a bent portion that bends toward the support plate. The height adjustment mechanism includes: A screw rod, which passes through the threaded through hole and is threadedly connected to the threaded through hole. An adjustment knob is disposed on the outer bending surface of the bent portion and connected to the screw. By rotating the adjustment knob, the screw drives the support plate to move.

7. The torque measuring device according to claim 6, characterized in that, The torque measuring device also includes: A limiting block is disposed at the end of the support frame away from the adjusting knob. A fourth through hole is formed on the limiting block, and the end of the screw away from the adjusting knob passes through the fourth through hole.

8. The torque measuring device according to claim 7, characterized in that, The height adjustment mechanism also includes: A scale plate, which is fixedly connected to the support frame, has scale lines on its outer surface. A scale pointer is disposed on a first side end of the support plate and extends to a second side of the scale plate in the length direction, so as to indicate the height position of the support plate when the support plate is moved.

9. The torque measuring device according to claim 2, characterized in that, The torque measuring device also includes: The touchscreen is used to receive user input of the motor speed. The processor is electrically connected to both the touchscreen and the motor, and is used to control the motor to operate based on the motor speed received from the touchscreen.

10. The torque measuring device according to claim 9, characterized in that, The torque measuring device also includes a control box, which is movably placed on the worktable. The first end of the support frame is fixed to the control box, the touch screen is mounted on the control box, the processor is arranged inside the control box, and wiring is laid out inside the control box between the processor and the touch screen, and between the processor and the motor.

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