Torque calibration device of torque sensor

Abstract

The utility model discloses a torque calibration device of a torque sensor, and relates to the technical field of torque sensors. The device comprises a base, the upper side of the base is fixedly connected with two sliding rods, the two sliding rods are in sliding fit with a mounting plate, and the upper side of the mounting plate is provided with a detection mechanism; mounting boxes are arranged on the upper side of the base and the lower side of the mounting plate correspondingly, and clamping mechanisms are arranged in the mounting boxes. According to the utility model, through the arrangement of the clamping mechanism, when torque sensors of different models need to be fixed, a trigger rod is pulled to enable a trigger block to extrude an extrusion block, so that a connecting plate drives a trapezoidal clamping block to be separated from a clamping groove, the calibration seat is convenient to disassemble, and a new calibration seat is selected; according to the torque sensor calibration device, the connecting blocks at the bottom are inserted into the corresponding connecting grooves, and are limited under the action of the trapezoidal clamping blocks, so that quick replacement and installation are realized, and the calibration efficiency of the torque sensor is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of torque sensors, and in particular relates to a torque calibration device for a torque sensor. Background Art

[0002] Torque sensor is a sensor that senses the torsional moment on various rotating or non-rotating mechanical parts. The torque sensor converts the physical change of torque into an accurate electrical signal. The torque sensor can be used in the manufacture of viscometers, electric (pneumatic, hydraulic) torque wrenches. It has the advantages of high precision, fast frequency response, good reliability and long life.

[0003] A Chinese patent with application number CN202322425430.5 discloses a torque calibration device for a torque sensor, including a base, a column fixedly connected to the upper side of the base, a plate slidably connected to the column, a turntable rotatably connected to the plate, a driving device for driving the turntable to rotate is provided on the plate, a calibration cover is detachably connected to the lower side of the turntable, and a calibration seat is fixedly connected to the upper side of the base.

[0004] The above scheme replaces calibration covers and calibration seats of different sizes and models by removing bolts, and is used to disassemble and replace torque sensors of different sizes and models. However, in actual use, when replacing the calibration cover and calibration seat, multiple bolts need to be disassembled and assembled, which is cumbersome and affects the calibration efficiency of the torque sensor.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a torque calibration device for a torque sensor.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A torque calibration device for a torque sensor comprises a base, two slide bars are fixedly connected to the upper side of the base, a mounting plate is slidably matched on the two slide bars, and a detection mechanism is arranged on the upper side of the mounting plate;

[0009] The upper side of the base and the lower side of the mounting plate are both equipped with mounting boxes, the interior of the mounting boxes is provided with a clamping mechanism, the opposite sides of the two mounting boxes are both provided with connecting grooves, and the inner wall of the connecting groove is provided with a calibration seat.

[0010] Optionally, the detection mechanism includes a mounting base fixedly connected to the upper side of the mounting plate, a hydraulic cylinder installed on one side of the mounting base, a push plate fixedly connected to the output end of the hydraulic cylinder, a fixed plate installed on one side of the push plate, a pressure sensor installed between the push plate and the fixed plate, a toothed plate fixedly connected to one side of the fixed plate, and an upper side of the mounting plate rotatably matched with a gear shaft meshing with the toothed plate, and the lower end of the gear shaft is fixedly connected to the upper side of the corresponding mounting box; by setting up the detection mechanism, it is used to measure the corresponding values ​​of the pressure sensor and the torque sensor, which is convenient for calibration.

[0011] Optionally, the clamping mechanism includes two connecting plates that slide and elastically fit on the inner wall of the installation box, a trapezoidal clamping block fixedly connected to the opposite side of the two connecting plates, an extrusion block fixedly connected to the opposite side of the two connecting plates, a slide groove opened on one side of the installation box, a trigger rod that slides and fits on the inner wall of the slide groove, and a trigger block fixedly connected to the end of the trigger rod, and the trigger block cooperates with the two extrusion blocks. By setting up the clamping mechanism, it is convenient to quickly disassemble and replace the calibration seat, and it is convenient to replace the torque sensor for calibration operation.

[0012] Optionally, a connection block is provided at the end of the calibration seat, and the connection block matches the connection groove. The connection block is provided to quickly install the calibration seat.

[0013] Optionally, both sides of the connection block are provided with a card slot, and two trapezoidal card blocks are slidably matched on the inner wall of the connection slot, and the trapezoidal card blocks are matched with the card slot. By setting the card slot and matching the trapezoidal card blocks, the calibration seat can be quickly fixed.

[0014] Optionally, a plurality of mounting holes are provided on the upper side of the base, and anti-slip sleeves are provided on both slide bars, and the anti-slip sleeves are fixedly connected to the mounting plate. The mounting holes are provided to mount the base, and the anti-slip sleeves are provided to increase the friction between the mounting plate and the slide bar, so as to facilitate operation.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] By setting up a clamping mechanism, when it is necessary to fix torque sensors of different models, the trigger rod is pulled to make the trigger block squeeze the extrusion block, so that the connecting plate drives the trapezoidal clamping block to separate from the clamping slot, which is convenient for removing the calibration seat. When a new calibration seat is selected, the connecting block at the bottom is inserted into the corresponding connecting slot. Under the action of the trapezoidal clamping block, it is limited to achieve rapid replacement and installation, thereby improving the calibration efficiency of the torque sensor.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a detection mechanism according to an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation box structure of an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of an installation box according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the calibration seat structure of an embodiment of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Base; 2. Slide bar; 3. Mounting plate; 4. Detection mechanism; 41. Mounting seat; 42. Hydraulic cylinder; 43. Push plate; 44. Fixing plate; 45. Pressure sensor; 46. Tooth plate; 47. Gear shaft; 5. Mounting box; 6. Clamping mechanism; 61. Connecting plate; 62. Trapezoidal clamping block; 63. Extrusion block; 64. Slide groove; 65. Trigger rod; 66. Trigger block; 7. Connecting groove; 8. Calibration seat; 9. Connecting block; 10. Clamping groove; 11. Mounting hole; 12. Anti-slip sleeve.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] The utility model will now be further described in detail with reference to the accompanying drawings.

[0028] See also Figure 1-5 As shown, in this embodiment, a torque calibration device of a torque sensor is provided, comprising a base 1, two slide bars 2 are fixedly connected to the upper side of the base 1, a mounting plate 3 is slidably matched on the two slide bars 2, and a detection mechanism 4 is arranged on the upper side of the mounting plate 3;

[0029] The upper side of the base 1 and the lower side of the mounting plate 3 are both provided with mounting boxes 5, the interior of the mounting boxes 5 is provided with a snap-in mechanism 6, the opposite sides of the two mounting boxes 5 are both provided with connecting grooves 7, the inner wall of the connecting grooves 7 is provided with a calibration seat 8.

[0030] The application of one aspect of this embodiment is: when in use, the two ends of the torque sensor are connected to the corresponding calibration seat 8. When the torque sensor is installed, the hydraulic cylinder 42 is used to drive the push plate 43 to move, and the push plate 43 drives the pressure sensor 45 and the fixed plate 44 to move, so that the tooth plate 46 drives the gear shaft 47 to rotate. When the gear shaft 47 rotates, it drives the upper installation box 5 to rotate accordingly, generating a torque force on the torque sensor. The torque sensor can be calibrated by converting the data of the torque sensor and the value detected by the pressure sensor 45. This technical solution aims to improve the calibration device. The torque sensor and the pressure sensor 45 are not within the scope of improvement. They are common equipment in the prior art and will not be described in detail.

[0031] When it is necessary to calibrate torque sensors of different specifications, the trigger rod 65 is pulled to drive the trigger block 66 to squeeze the two squeezing blocks 63, so that the squeezing blocks 63 drive the two connecting plates 61 to move to both sides, driving the trapezoidal clamping block 62 to separate from the corresponding clamping slot 10, and then the calibration seat 8 is pulled and removed, and a new calibration seat 8 is selected to insert the connecting block 9 at the bottom into the connecting slot 7. Under the action of the trapezoidal clamping block 62, it is limited to achieve rapid replacement and installation, thereby improving calibration efficiency.

[0032] By setting the clamping mechanism 6, when it is necessary to fix torque sensors of different models, the trigger rod 65 is pulled to make the trigger block 66 squeeze the squeezing block 63, so that the connecting plate 61 drives the trapezoidal clamping block 62 to separate from the clamping slot 10, so as to facilitate the removal of the calibration seat 8. When a new calibration seat 8 is selected, the connecting block 9 at the bottom is inserted into the corresponding connecting slot 7. Under the action of the trapezoidal clamping block 62, it is limited to achieve rapid replacement and installation, thereby improving the calibration efficiency of the torque sensor.

[0033] The detection mechanism 4 of this embodiment includes a mounting base 41 fixedly connected to the upper side of the mounting plate 3, a hydraulic cylinder 42 installed on one side of the mounting base 41, a push plate 43 fixedly connected to the output end of the hydraulic cylinder 42, a fixed plate 44 installed on one side of the push plate 43, a pressure sensor 45 installed between the push plate 43 and the fixed plate 44, a toothed plate 46 fixedly connected to one side of the fixed plate 44, and a gear shaft 47 rotatably engaged with the toothed plate 46 on the upper side of the mounting plate 3, and the lower end of the gear shaft 47 is fixedly connected to the upper side of the corresponding mounting box 5; by setting up the detection mechanism 4, it is used to measure the corresponding values ​​of the pressure sensor 45 and the torque sensor, which is convenient for calibration.

[0034] The clamping mechanism 6 of this embodiment includes two connecting plates 61 that slide and elastically fit on the inner wall of the installation box 5, a trapezoidal clamping block 62 fixedly connected to the opposite side of the two connecting plates 61, an extrusion block 63 fixedly connected to the opposite side of the two connecting plates 61, a slide groove 64 opened on one side of the installation box 5, a trigger rod 65 that slides and fits on the inner wall of the slide groove 64, and a trigger block 66 fixedly connected to the end of the trigger rod 65. The trigger block 66 cooperates with the two extrusion blocks 63. By setting the clamping mechanism 6, it is convenient to quickly disassemble and replace the calibration seat 8, and it is convenient to replace the torque sensor for calibration operation.

[0035] The end of the calibration seat 8 of this embodiment is equipped with a connecting block 9, and the connecting block 9 cooperates with the connecting groove 7; the connection block 9 is provided to quickly install the calibration seat 8.

[0036] In this embodiment, both sides of the connecting block 9 are provided with card slots 10, and two trapezoidal card blocks 62 are slidably fitted on the inner wall of the connecting slot 7, and the trapezoidal card blocks 62 cooperate with the card slots 10; by setting the card slots 10 and matching the trapezoidal card blocks 62, the calibration seat 8 can be quickly fixed.

[0037] A plurality of mounting holes 11 are provided on the upper side of the base 1 of the present embodiment, and anti-slip sleeves 12 are sleeved on the two slide bars 2, and the anti-slip sleeves 12 are fixedly connected to the mounting plate 3; the mounting holes 11 are provided to install the base 1, and the anti-slip sleeves 12 are provided to increase the friction between the mounting plate 3 and the slide bar 2, so as to facilitate operation.

[0038] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A torque calibration device for a torque sensor, characterized in that: include: A base (1), wherein two slide bars (2) are fixedly connected to the upper side of the base (1), a mounting plate (3) is slidably fitted on the two slide bars (2), and a detection mechanism (4) is arranged on the upper side of the mounting plate (3); The upper side of the base (1) and the lower side of the mounting plate (3) are both provided with mounting boxes (5), a clamping mechanism (6) is provided inside the mounting boxes (5), a connecting groove (7) is provided on the opposite side of the two mounting boxes (5), and a calibration seat (8) is provided on the inner wall of the connecting groove (7).

2. The torque calibration device of a torque sensor according to claim 1, characterized in that: The detection mechanism (4) comprises a mounting seat (41) fixedly connected to the upper side of the mounting plate (3), a hydraulic cylinder (42) installed on one side of the mounting seat (41), a push plate (43) fixedly connected to the output end of the hydraulic cylinder (42), a fixed plate (44) installed on one side of the push plate (43), a pressure sensor (45) installed between the push plate (43) and the fixed plate (44), a toothed plate (46) fixedly connected to one side of the fixed plate (44), and a gear shaft (47) rotatably engaged with the toothed plate (46) on the upper side of the mounting plate (3), and the lower end of the gear shaft (47) is fixedly connected to the upper side of the corresponding mounting box (5).

3. The torque calibration device of a torque sensor according to claim 1, characterized in that: The clamping mechanism (6) comprises two connecting plates (61) which are slidably and elastically matched on the inner wall of the installation box (5), a trapezoidal clamping block (62) which is fixedly connected to the opposite side of the two connecting plates (61), an extrusion block (63) which is fixedly connected to the opposite side of the two connecting plates (61), a slide groove (64) which is provided on one side of the installation box (5), a trigger rod (65) which is slidably matched on the inner wall of the slide groove (64), and a trigger block (66) which is fixedly connected to the end of the trigger rod (65), wherein the trigger block (66) is matched with the two extrusion blocks (63).

4. The torque calibration device of a torque sensor according to claim 1, characterized in that: A connecting block (9) is installed at the end of the calibration seat (8), and the connecting block (9) matches with the connecting groove (7).

5. The torque calibration device of a torque sensor according to claim 4, characterized in that: Both sides of the connection block (9) are provided with a clamping groove (10), and two trapezoidal clamping blocks (62) are slidably matched on the inner wall of the connection groove (7), and the trapezoidal clamping blocks (62) are matched with the clamping groove (10).

6. The torque calibration device of a torque sensor according to claim 1, characterized in that: A plurality of mounting holes (11) are provided on the upper side of the base (1), and anti-slip sleeves (12) are sleeved on the two slide bars (2), and the anti-slip sleeves (12) are fixedly connected to the mounting plate (3).

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