Torsion measuring device

Abstract

The utility model relates to the technical field of torsion measurement, and discloses a torsion measuring device, which comprises a measuring table and a connecting rod, a positioning mechanism is arranged on the measuring table, and an installation mechanism is arranged on the connecting rod. The screw rod is rotated by rotating the hand screwing block, so that the arc-shaped clamping plate moves and clamps and fixes the plastic gear, anti-slip teeth arranged in the arc-shaped clamping plate can prevent the plastic gear from slipping and rotating during torsion measurement, and plastic gears of different sizes can be positioned and clamped; a connecting sleeve on a clamping block matched with a to-be-measured plastic gear is connected with a connecting rod in a sleeving mode, then a fixing bolt and a nut are used, and the connecting sleeve and the connecting rod are connected in a fastening mode in cooperation with a fixing hole, so that the device can correspondingly disassemble, assemble and replace the clamping block according to plastic gears of different sizes, and the working efficiency is improved. The installation process is simple and convenient, the application range of the device is greatly widened, and unnecessary cost expenditure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of torque measurement, in particular to a torque measurement device. Background Art

[0002] Plastic gears are widely used in transmission structures due to their strong plasticity, strong resistance to chemical corrosion, and good insulation. However, the stability of the plastic gear structure is slightly inferior to that of metal gears. Before use, it is necessary to measure the torque that the plastic gear teeth can withstand to ensure that the plastic gear teeth will not break due to excessive torque during use, thereby causing the entire transmission structure to fail to work properly.

[0003] The Chinese patent provides a torque measuring device for mechanical metrology, the publication number is CN212483214U, including a bottom plate, a torque structure and a positioning structure, a torque structure is vertically installed on one side of the top surface of the bottom plate, and a slider is welded in the middle of the other side of the top surface of the bottom plate, and a positioning structure is slidably installed on the slider on the top surface of the bottom plate, the torque structure includes a bearing seat, a bearing and a rotating structure, and the bearing seat is vertically welded on the top surface of the bottom plate, a bearing is fixedly installed in the bearing seat, and a rotating structure is horizontally rotated and plugged in the bearing. The utility model can position and clamp plastic gears, accurately display the torque borne by the plastic gears, thereby improving the measurement accuracy.

[0004] The above-mentioned device has the effect of being able to position and clamp plastic gears and accurately display the torque borne by the plastic gears. However, the device is only suitable for positioning, clamping and torque measurement of plastic gears of fixed sizes. The scope of use is too limited. When measuring the torque of plastic gears of different sizes, an adaptive measuring device is required, which results in excessive cost of torque measurement. Therefore, it is necessary to provide a torque measuring device. Utility Model Content

[0005] The utility model aims to provide a torque measuring device to solve the problem that the existing device cannot perform positioning, clamping and torque measurement on plastic gears of different sizes.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a torque measuring device, comprising a measuring platform and a connecting rod, a positioning mechanism is arranged on the measuring platform, and a mounting mechanism is arranged on the connecting rod; the positioning mechanism comprises a positioning plate and a screw rod, a ball nut is fixedly arranged on the bottom end of the positioning plate, the screw rod is threadedly connected to the ball nut, an arc clamping plate is arranged in the positioning plate, anti-slip teeth are fixedly arranged in the arc clamping plate, a fixing block is fixedly arranged on the arc clamping plate, a screw is rotatably connected to the fixing block, an end of the screw away from the fixing block is threadedly penetrates the positioning plate and is fixedly connected to the hand-tightening block; the mounting mechanism comprises a clamping block, a connecting sleeve is fixedly arranged on one end of the clamping block, the connecting sleeve is sleeved with the connecting rod, fixing holes are opened on the connecting sleeve and the connecting rod, a nut is fixedly arranged on the bottom end of the connecting sleeve, a fixing bolt is inserted in the fixing hole, the fixing bolt passes through the fixing hole and is threadedly connected to the nut.

[0007] Preferably, a fixing plate is fixedly provided on the measuring platform, the screw rod is rotatably provided on the fixing plate, and a hand wheel is fixedly provided on one end of the screw rod away from the fixing plate.

[0008] Preferably, a limiting slider is fixedly provided at the bottom end of the positioning plate, a slide rail adapted to the limiting slider is fixedly provided on the measuring platform, and the limiting slider is slidably connected to the slide rail.

[0009] Preferably, a limiting rod is fixedly provided on the arc-shaped clamping plate, and one end of the limiting rod away from the arc-shaped clamping plate slides through the positioning plate and extends to the outer end of the positioning plate.

[0010] Preferably, a support base is fixedly provided on the measuring platform, a motor is fixedly provided on the support base, a coupling is fixedly provided on the rotating shaft of the motor, the rotating shaft of the motor is connected to a connecting rod through a coupling, a torque sensor is fixedly sleeved on the connecting rod, a bracket fixedly connected to the support base is fixedly provided on the measuring platform, and the connecting rod is rotatably connected to the bracket.

[0011] Preferably, a display screen is fixedly provided on the measuring platform, the display screen is connected to the torque sensor via a transmission line, and a supporting foot pad is fixedly provided at the bottom end of the measuring platform.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1) The torque measuring device rotates the screw by rotating the hand-tightening block. Under the threaded connection between the screw and the positioning plate, the arc-shaped clamping plate moves under the guidance and limitation of the limiting rod until the two limiting clamping plates clamp and fix the two ends of the plastic gear. The anti-slip teeth arranged in the arc-shaped clamping plate can improve the tightness of the clamping of the plastic gear and prevent the plastic gear from slipping during torque measurement, thereby realizing the positioning and clamping of plastic gears of different sizes.

[0014] 2) The torque measuring device is configured to connect the connecting sleeve on the block that is adapted to the plastic gear to be measured with the connecting rod, and then use fixing bolts and nuts to fasten the connecting sleeve and the connecting rod in conjunction with the fixing holes, so that the device can disassemble, assemble and replace the block according to plastic gears of different sizes. The installation process is simple and convenient, which greatly improves the scope of application of the device and reduces unnecessary cost expenditure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a torque measuring device in an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the positioning mechanism in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning plate in the embodiment of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the installation mechanism in the embodiment of the utility model.

[0019] In the figure: 1. Measuring table; 2. Support foot pad; 3. Positioning mechanism; 301. Positioning plate; 302. Ball nut; 303. Fixing plate; 304. Screw; 305. Handwheel; 306. Limiting slider; 307. Slide rail; 308. Arc clamp; 309. Anti-skid teeth; 310. Fixing block; 311. Screw; 312. Hand-tightening block; 313. Limiting rod; 4. Motor; 5. Coupling; 6. Connecting rod; 7. Torque sensor; 8. Mounting mechanism; 801. Block; 802. Connecting sleeve; 803. Fixing hole; 804. Fixing bolt; 805. Nut; 9. Support seat; 10. Bracket; 11. Display screen. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] Combination Figure 1-Figure 4 A torque measuring device includes a measuring platform 1 and a connecting rod 6. A support seat 9 is fixedly arranged on the measuring platform 1. A motor 4 is fixedly arranged on the support seat 9. A coupling 5 is fixedly arranged on the rotating shaft of the motor 4. The rotating shaft of the motor 4 is connected to the connecting rod 6 through the coupling 5. A torque sensor 7 is fixedly sleeved on the connecting rod 6. A bracket 10 fixedly connected to the support seat 9 is fixedly arranged on the measuring platform 1. The connecting rod 6 is rotatably connected to the bracket 10. A display screen 11 is fixedly arranged on the measuring platform 1. The display screen 11 and the torque sensor 7 are connected through a transmission line. A supporting foot pad 2 is fixedly arranged at the bottom end of the measuring platform 1. A positioning mechanism 3 is arranged on the measuring platform 1. A mounting mechanism 8 is arranged on the connecting rod 6.

[0023] See also Figure 2 and Figure 3 , it is further obtained that the positioning mechanism 3 includes a positioning plate 301 and a screw rod 304, a ball nut 302 is fixedly provided at the bottom end of the positioning plate 301, the screw rod 304 is threadedly connected to the ball nut 302, an arc clamping plate 308 is provided in the positioning plate 301, an anti-slip tooth 309 is fixedly provided in the arc clamping plate 308, a fixed block 310 is fixedly provided on the arc clamping plate 308, a screw rod 311 is rotatably connected to the fixed block 310, and one end of the screw rod 311 away from the fixed block 310 is threadedly penetrated through the positioning plate 301 and fixedly connected to a hand-tightening block 312; measuring platform 1 A fixing plate 303 is fixedly arranged on the upper part, a screw rod 304 is rotatably arranged on the fixing plate 303, a hand wheel 305 is fixedly arranged on the end of the screw rod 304 away from the fixing plate 303, a limiting slider 306 is fixedly arranged on the bottom end of the positioning plate 301, a slide rail 307 adapted to the limiting slider 306 is fixedly arranged on the measuring platform 1, the limiting slider 306 is slidably connected with the slide rail 307, a limiting rod 313 is fixedly arranged on the arc clamping plate 308, and the end of the limiting rod 313 away from the arc clamping plate 308 slides through the positioning plate 301 and extends to the outer end of the positioning plate 301.

[0024] Specifically, the screw 311 is rotated by rotating the hand-tightening block 312, and under the threaded connection between the screw 311 and the positioning plate 301, the arc clamping plate 308 moves under the guidance and limitation of the limiting rod 313 until the two limiting clamping plates 308 clamp the two ends of the plastic gear. The anti-slip teeth 309 arranged in the arc clamping plate 308 can improve the tightness of the plastic gear clamping and prevent the plastic gear from slipping during torque measurement, thereby realizing the positioning and clamping of plastic gears of different sizes.

[0025] Embodiment 2

[0026] See also Figure 4 It is further obtained that the installation mechanism 8 includes a clamping block 801, one end of which is fixedly provided with a connecting sleeve 802, the connecting sleeve 802 is sleeved with the connecting rod 6, and fixing holes 803 are provided on the connecting sleeve 802 and the connecting rod 6, a nut 805 is fixedly provided at the bottom end of the connecting sleeve 802, a fixing bolt 804 is inserted into the fixing hole 803, and the fixing bolt 804 passes through the fixing hole 803 and is threadedly connected with the nut 805.

[0027] Specifically, by socketing the connecting sleeve 802 on the block 801 that is adapted to the plastic gear to be measured with the connecting rod 6, and then using the fixing bolts 804 and the nuts 805, and cooperating with the fixing holes 803 to fasten the connecting sleeve 802 and the connecting rod 6, the device can disassemble, assemble and replace the block 801 according to the plastic gears of different sizes. The installation process is simple and convenient, which greatly improves the scope of application of the device and reduces unnecessary cost expenditure.

[0028] In actual operation, the plastic gear to be measured is placed in the positioning plate 301, and then the screw 311 is rotated by rotating the hand-tightening block 312. Under the threaded connection between the screw 311 and the positioning plate 301, the arc clamping plate 308 is moved under the guidance and limitation of the limiting rod 313 until the two limiting clamping plates 308 clamp and fix the two ends of the plastic gear. The anti-slip teeth 309 arranged in the arc clamping plate 308 can improve the tightness of the plastic gear clamping and prevent the plastic gear from slipping during torque measurement, thereby achieving the positioning clamping of the plastic gear.

[0029] After the plastic gear is clamped, the connecting sleeve 802 on the block 801 adapted to the plastic gear to be measured is sleeved with the connecting rod 6, and then the fixing bolt 804 and the nut 805 are used to fasten the connecting sleeve 802 and the connecting rod 6 in conjunction with the fixing hole 803. After installation, the screw rod 304 is rotated by the hand wheel 305, so that the ball nut 302 threadedly connected to the screw rod 304 can drive the positioning plate 301 to move, and the positioning plate 301 moves toward the block 801 under the limit guidance of the limit slider 306 and the slide rail 307 until the inner ring of the clamped plastic gear is engaged with the block 801, so as to facilitate the subsequent rotation of the inner ring of the plastic gear, start the motor 4 to make the coupling 5 drive the connecting rod 6 to rotate, and the connecting rod 6 gives the plastic gear a rotating force through the block 801, and the maximum torque borne by the plastic gear is monitored in real time by the torque sensor 7, and the measured data is transmitted to the display screen 11 for observation by the staff.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A torque measuring device, comprising a measuring platform (1) and a connecting rod (6), characterized in that: The measuring platform (1) is provided with a positioning mechanism (3), and the connecting rod (6) is provided with a mounting mechanism (8); The positioning mechanism (3) comprises a positioning plate (301) and a screw rod (304); a ball nut (302) is fixedly provided at the bottom end of the positioning plate (301); the screw rod (304) is threadedly connected to the ball nut (302); an arc-shaped clamping plate (308) is provided inside the positioning plate (301); anti-slip teeth (309) are fixedly provided inside the arc-shaped clamping plate (308); a fixing block (310) is fixedly provided on the arc-shaped clamping plate (308); a screw rod (311) is rotatably connected to the fixing block (310); an end of the screw rod (311) away from the fixing block (310) is threadedly penetrated through the positioning plate (301) and is fixedly connected to a hand-tightening block (312); The mounting mechanism (8) comprises a clamping block (801), one end of which is fixedly provided with a connecting sleeve (802), the connecting sleeve (802) being sleeved with a connecting rod (6), the connecting sleeve (802) and the connecting rod (6) both being provided with fixing holes (803), a nut (805) being fixedly provided at the bottom end of the connecting sleeve (802), a fixing bolt (804) being inserted into the fixing hole (803), the fixing bolt (804) passing through the fixing hole (803) and being threadedly connected with the nut (805).

2. A torque measuring device according to claim 1, characterized in that: A fixing plate (303) is fixedly arranged on the measuring platform (1), the screw rod (304) is rotatably arranged on the fixing plate (303), and a hand wheel (305) is fixedly arranged on one end of the screw rod (304) away from the fixing plate (303).

3. A torque measuring device according to claim 2, characterized in that: A limit slider (306) is fixedly arranged at the bottom end of the positioning plate (301), a slide rail (307) adapted to the limit slider (306) is fixedly arranged on the measuring platform (1), and the limit slider (306) is slidably connected to the slide rail (307).

4. A torque measuring device according to claim 3, characterized in that: A limiting rod (313) is fixedly arranged on the arc-shaped clamping plate (308), and one end of the limiting rod (313) away from the arc-shaped clamping plate (308) slides through the positioning plate (301) and extends to the outer end of the positioning plate (301).

5. A torque measuring device according to claim 1, characterized in that: A support seat (9) is fixedly arranged on the measuring platform (1), a motor (4) is fixedly arranged on the support seat (9), a coupling (5) is fixedly arranged on the rotating shaft of the motor (4), the rotating shaft of the motor (4) is connected to a connecting rod (6) through the coupling (5), a torque sensor (7) is fixedly sleeved on the connecting rod (6), a bracket (10) fixedly connected to the support seat (9) is fixedly arranged on the measuring platform (1), and the connecting rod (6) is rotatably connected to the bracket (10).

6. A torque measuring device according to claim 5, characterized in that: A display screen (11) is fixedly arranged on the measuring platform (1), the display screen (11) is connected to the torque sensor (7) via a transmission line, and a supporting foot pad (2) is fixedly arranged at the bottom end of the measuring platform (1).

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