Torque calibration device of double-torque sensor

Abstract

The utility model discloses a torque calibration device for double torque sensors, which comprises a shell, the upper surface of the shell is fixedly connected with an operation box, a motor I is arranged in the operation box, a mounting plate is arranged at the bottom of the motor I, the mounting plate is fixedly connected with the top end of a sleeve, a fixing rod is arranged in the sleeve, a spring I is sleeved outside the fixing rod, and an oil storage cavity is arranged in the sleeve. The inner wall of the sleeve is fixedly connected with a partition, an oil hole is formed in the partition, the output end of a first motor is fixedly connected with a connecting shaft, one end of a telescopic rod is fixedly connected with a bearing, and a second motor is arranged on one side of the first motor. According to the utility model, the insertion rod is separated from the interior of the insertion hole through the insertion rod, thereby reducing the dismounting difficulty of the torque sensor, facilitating the subsequent maintenance and repair, absorbing and buffering the impact force through the oil in the oil storage cavity, converting the impact force into internal energy, and enhancing the damping effect of the installation plate. The situation that the torque sensor is inaccurate in result due to vibration generated by working of the motor is avoided.

Description

Technical Field

[0001] This utility model relates to the field of torque sensor technology, specifically a torque calibration device with dual torque sensors. Background Technology

[0002] Torque sensors, also known as torque sensors, torque meters, or torque meters, are divided into two main categories: dynamic and static. Their function is to detect torsional torque on various rotating or non-rotating mechanical parts. Torque sensors convert the physical changes in torque into precise electrical signals.

[0003] According to announcement number CN221612297 U, a torque calibration device for dual torque sensors is disclosed. This patent includes a main body, a connecting mechanism, and an auxiliary mechanism. The first torque sensor body and the second torque sensor body are placed facing each other on a connecting shaft. The opening of the connecting shaft is sealed by a bearing, so that the connecting shaft can drive the sensitive elements of the two torque sensors to rotate, thereby generating torque for torque calibration. The structure is optimized and consumes less energy.

[0004] However, the two torque sensor bodies in the above patent are placed on the outside of the connecting shaft, but no limiting structure is set, which leads to the potential for displacement and shaking of the torque sensor. At the same time, it is not convenient for staff to disassemble the torque sensor for maintenance and repair. In addition, the above patent reduces the amplitude generated by the motor's operation by using a shock-absorbing plate, but the shock absorption effect of the shock-absorbing plate alone is weak. Utility Model Content

[0005] The purpose of this invention is to provide a torque calibration device for dual torque sensors to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a torque calibration device for a dual torque sensor, comprising a housing, the upper surface of which is fixedly connected to an operating box, a motor I being disposed inside the operating box, an mounting plate being disposed at the bottom of the motor I, the mounting plate being fixedly connected to the top of a sleeve, a fixing rod being disposed inside the sleeve, a spring I being sleeved on the outside of the fixing rod, an oil storage chamber being disposed inside the sleeve, a partition being fixedly connected to the inner wall of the sleeve, an oil hole being provided on the partition, the output end of the motor I being fixedly connected to a connecting shaft, one end of a telescopic rod being fixedly connected to a bearing, a motor II being disposed on one side of the motor I, the output end of the motor II being fixedly connected to the connecting shaft, an insertion hole being provided on the outside of the connecting shaft, an mounting cylinder being disposed on the outside of the connecting shaft, a torque sensor being fixedly connected to the outside of the mounting cylinder, an insertion rod being disposed inside the mounting cylinder, a limiting plate being fixedly connected to the outside of the insertion rod, and a spring II being sleeved on the outside of the insertion rod.

[0007] Preferably, the upper surface of the housing is fixedly connected to two operating boxes, the first motor and the second motor are respectively located inside the operating boxes and are distributed relative to each other, and the first motor and the second motor are respectively fixedly connected to the surface of the mounting plate.

[0008] Preferably, the sleeve is slidably connected to the outside of the fixed rod, and the spring is located between the housing and the sleeve.

[0009] Preferably, the partition divides the interior of the sleeve into upper and lower cavities, the oil storage cavity is the lower cavity, the upper cavity of the sleeve is the buffer cavity, and the oil hole connects the oil storage cavity and the buffer cavity.

[0010] Preferably, the mounting cylinder has a circular through hole, the insertion hole is slidably connected to the outside of the insertion rod through a cylindrical groove, and one end of the insertion rod is movably inserted into the insertion hole.

[0011] Preferably, a cylindrical groove is formed in the insertion hole, and both the limiting plate and the second spring are located in the cylindrical groove, with the limiting plate slidably connected to the inner wall of the cylindrical groove.

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

[0013] This invention utilizes a connecting shaft, insertion holes, mounting cylinder, insertion rod, and spring. By pulling the insertion rod outward, it detaches from the insertion hole, allowing the mounting cylinder and torque sensor to be disassembled on the outside of the connecting shaft. This reduces the difficulty of disassembling and installing the torque sensor, facilitating subsequent maintenance and repair. Furthermore, the several insertion holes on the outside of the connecting shaft allow for flexible adjustment of the torque sensor's fixed position according to actual usage, enhancing the overall performance.

[0014] This invention also utilizes a mounting plate, sleeve, fixing rod, spring one, oil storage chamber, and partition plate. When the motor two vibrates during operation, it pushes the mounting plate to move, causing the sleeve to slide outside the fixing rod. This further squeezes the oil in the oil storage chamber and allows it to enter the buffer chamber above the partition plate through the oil hole. The oil absorbs and buffers the impact force and converts it into internal energy, enhancing the shock absorption effect of the mounting plate and preventing the torque sensor from producing inaccurate results due to vibrations caused by the motor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the internal structure of the control box of this utility model;

[0017] Figure 3 This is a cross-sectional view of the internal structure of the sleeve of this utility model;

[0018] Figure 4This is a schematic diagram of the connecting shaft and mounting cylinder structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the internal structure of the mounting cylinder of this utility model.

[0020] In the diagram: 1. Housing; 2. Control box; 3. Motor 1; 4. Mounting plate; 5. Sleeve; 6. Fixing rod; 7. Spring 1; 8. Oil reservoir; 9. Partition plate; 10. Oil hole; 11. Telescopic rod; 12. Bearing; 13. Motor 2; 14. Connecting shaft; 15. Insertion hole; 16. Mounting cylinder; 17. Torque sensor; 18. Insertion rod; 19. Limiting plate; 20. Spring 2. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a torque calibration device for a dual torque sensor, comprising a housing 1, the upper surface of which is welded and fixed to an operating box 2, and the bottom of which is fixedly connected to four support columns. Each support column has a rubber pad at its bottom. Inside the operating box 2, a first motor 3 and a second motor 13 are respectively installed. The output shafts of both motors 3 and 13 are located on the same horizontal line. The bottom of motor 3 is fixedly connected to a mounting plate 4 by bolts. The mounting plate 4 is welded and fixed to the top of a sleeve 5. A fixing rod 6 is installed inside the sleeve 5, and a spring 7 is sleeved on the outside of the fixing rod 6. An oil storage chamber 8 is installed inside the sleeve 5, and the inner wall of the sleeve 5 is welded and fixed to a partition plate 9. An oil hole 10 is opened on the partition plate 9. The output end of motor 3 is connected to... Shaft 14 is fixedly connected, and one end of telescopic rod 11 is fixedly connected to bearing 12. Motor 13 is installed on one side of motor 13. The output end of motor 13 is welded and fixed to connecting shaft 14. Insertion hole 15 is opened on the outside of connecting shaft 14. Connecting shaft 14 is slidably connected to the outside of mounting cylinder 16. Torque sensor 17 can be fixed to the outside of connecting shaft 14 by insertion rod 18 to prevent torque sensor 17 from shifting or loosening during rotation. At the same time, the two torque sensors 17 are used to enhance the accuracy of sensor calibration. Torque sensor 17 is welded and fixed to the outside of mounting cylinder 16. Insertion rod 18 is installed inside mounting cylinder 16. Insertion rod 18 is welded and fixed to limit plate 19 on the outside. Spring 20 is sleeved on the outside of insertion rod 18.

[0023] The upper surface of the housing 1 is welded and fixed to two operating boxes 2. Motor 1 3 and Motor 2 13 are located inside the operating boxes 2 and are distributed opposite each other. Motor 1 3 and Motor 2 13 are welded and fixed to the surface of the mounting plate 4. This achieves the shock absorption and buffering effect of Motor 1 3 and Motor 2 13, while also providing operability for torque calibration.

[0024] The sleeve 5 is slidably connected to the outside of the fixed rod 6. The spring 7 is located between the housing 1 and the sleeve 5. The partition 9 divides the inside of the sleeve 5 into upper and lower cavities. The oil storage cavity 8 is the lower cavity, and the upper cavity of the sleeve 5 is the buffer cavity. The oil hole 10 connects the oil storage cavity 8 and the buffer cavity.

[0025] A circular through hole is provided on the mounting cylinder 16. The insertion hole 15 is slidably connected to the outside of the insertion rod 18 through a cylindrical groove. One end of the insertion rod 18 is movably inserted into the insertion hole 15. A cylindrical groove is provided inside the insertion hole 15. The limiting plate 19 and the second spring 20 are both located in the cylindrical groove. The limiting plate 19 is slidably connected to the inner wall of the cylindrical groove. Vibration will cause the mounting plate 4 to push the sleeve 5 downward. By moving the sleeve 5 outside the fixed rod 6, the oil inside the oil storage chamber 8 is squeezed, thereby converting the impact force into internal energy. The oil in the oil storage chamber 8 is squeezed into the buffer chamber. At the same time, the pressure increases, and the oil in the buffer chamber is pushed back into the oil storage chamber 8 to reset.

[0026] Working Principle: During use, motor 3 drives the telescopic rod 11, causing the bearing 12 to open and close at the opening of the connecting shaft 14. Motor 2 drives the connecting shaft 14 to rotate, which in turn drives the two torque sensors 17 to rotate synchronously, generating torque for torque calibration. The operation of motors 3 and 13 generates vibration, which causes the mounting plate 4 to push the sleeve 5 downwards. The sleeve 5 moves outside the fixed rod 6, squeezing the oil inside the oil storage chamber 8 and allowing it to enter the buffer chamber above the partition plate 9 through the oil hole 10. The squeezing of the oil increases the pressure, absorbing the impact force and converting it into internal energy, thus increasing the pressure inside the buffer chamber. Subsequently, under the action of spring 7 and the pressure, the oil in the buffer chamber returns to the oil storage chamber 8 through the oil hole 10, resetting the mounting plate 4 and sleeve 5 and enhancing the buffering effect of motors 3 and 13.

[0027] By pulling the plate to disengage the insertion rod 18 from the insertion hole 15, and then removing the mounting cylinder 16 and torque sensor 17 from the outside of the connecting shaft 14, the disassembly can be completed. Subsequently, the elastic force of the second spring 20 is used to push the limiting plate 19 so that the insertion rod 18 is inserted into the corresponding position of the insertion hole 15, thereby installing and fixing the torque sensor 17, and at the same time realizing flexible position adjustment.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A torque calibration device for a dual torque sensor, comprising a housing (1) and a telescopic rod (11), characterized in that: The upper surface of the housing (1) is fixedly connected to the operating box (2). A motor (3) is installed inside the operating box (2). An mounting plate (4) is installed at the bottom of the motor (3). The mounting plate (4) is fixedly connected to the top of the sleeve (5). A fixing rod (6) is installed inside the sleeve (5). A spring (7) is sleeved on the outside of the fixing rod (6). An oil storage chamber (8) is installed inside the sleeve (5). The inner wall of the sleeve (5) is fixedly connected to a partition plate (9). An oil hole (10) is opened on the partition plate (9). The output end of the motor (3) is fixedly connected to the connecting shaft (14). One end of the telescopic rod (11) is connected and fixed to the bearing (12). A second motor (13) is provided on one side of the first motor (3). The output end of the second motor (13) is fixedly connected to the connecting shaft (14). An insertion hole (15) is opened on the outside of the connecting shaft (14). An installation cylinder (16) is provided on the outside of the connecting shaft (14). The outside of the installation cylinder (16) is fixedly connected to the torque sensor (17). An insertion rod (18) is provided inside the installation cylinder (16). The outside of the insertion rod (18) is fixedly connected to the limiting plate (19). A second spring (20) is sleeved on the outside of the insertion rod (18).

2. The torque calibration device for a dual torque sensor according to claim 1, characterized in that: The upper surface of the housing (1) is fixedly connected to two operating boxes (2). The first motor (3) and the second motor (13) are located inside the operating box (2) and are distributed relative to each other. The first motor (3) and the second motor (13) are fixedly connected to the surface of the mounting plate (4).

3. The torque calibration device for a dual torque sensor according to claim 1, characterized in that: The sleeve (5) is slidably connected to the outside of the fixed rod (6), and the spring (7) is located between the housing (1) and the sleeve (5).

4. The torque calibration device for a dual torque sensor according to claim 1, characterized in that: The partition (9) divides the inside of the sleeve (5) into two cavities, the oil storage cavity (8) is the lower cavity, the upper cavity of the sleeve (5) is the buffer cavity, and the oil hole (10) connects the oil storage cavity (8) and the buffer cavity.

5. The torque calibration device for a dual torque sensor according to claim 1, characterized in that: The mounting cylinder (16) has a circular through hole, the insertion hole (15) is slidably connected to the outside of the insertion rod (18) through a cylindrical groove, and one end of the insertion rod (18) is movably inserted into the insertion hole (15).

6. The torque calibration device for a dual torque sensor according to claim 1, characterized in that: A cylindrical groove is formed in the insertion hole (15), and the limiting plate (19) and the second spring (20) are both located in the cylindrical groove. The limiting plate (19) is slidably connected to the inner wall of the cylindrical groove.

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