A torque sensor adjustment structure

Abstract

This utility model relates to the field of sensor adjustment technology, and provides a torque sensor adjustment structure, including a main housing, a force-bearing rod rotatably connected to the bottom of the main housing, a force-bearing plate fixedly connected to the bottom of the force-bearing rod, a rod sleeve provided on the outer surface of the force-bearing rod, and a force-applying rod provided on the inner surface of the rod sleeve; a torque limiting component is provided on one side of the rod sleeve; and a maximum torque adjusting component is provided on the top of the rod sleeve. This utility model, with its torque limiting component, precisely controls the upper limit range of torque to protect equipment, workpieces, and sensors. When the torque reaches a preset threshold, it prevents the torque from continuing to rise by slipping, disengaging, or cutting off power transmission, thereby protecting the sensor.

Description

Technical Field

[0001] This utility model relates to the field of sensor adjustment technology, and in particular to a torque sensor adjustment structure. Background Technology

[0002] Torque sensor adjustment structure is an indispensable component of torque sensor system. Its core function is to ensure that the sensor can accurately and stably measure torque under various operating conditions through mechanical, electronic or software adjustments. Torque sensor adjustment structure connects and ensures the accuracy, stability and flexibility of torque measurement by calibrating accuracy, adapting to scenarios, resisting interference and simplifying debugging. It is widely used in automotive engine testing, industrial robot joints, precision machine tools and other fields. However, existing technology cannot protect the sensor by limiting the maximum output torque.

[0003] However, existing technologies, such as Chinese Patent Publication No. CN111947816A, "A Torque Sensor," disclose a torque sensor characterized by comprising a base, an input shaft, an output shaft, an elastic plate, a strain gauge, and a circuit board. The input and output shafts are rotatably mounted on the base. The elastic plate is positioned between the input and output shafts to connect them. A Wheatstone bridge strain gauge is installed on the elastic plate to sense minute deformations during operation. The circuit board includes a signal conditioning circuit to normalize the discrete output signals of the strain gauge to a uniform output range. This invention enables precise torque control and reliably ensures assembly quality.

[0004] However, this device lacks a torque limiting component, making it unable to precisely control the upper limit of torque to protect equipment, workpieces, and sensors. It also cannot prevent the torque from continuing to rise when the torque reaches a preset threshold by slipping, disengaging, or cutting off power transmission, thus protecting the sensors. Furthermore, the device lacks a maximum torque adjustment component, making it impossible to flexibly adjust the maximum torque threshold that the device can withstand or monitor to adapt to the needs of different sensors. Consequently, it cannot simultaneously ensure safety, adaptability, and measurement accuracy, and cannot guarantee the device's adaptability to different scenarios. Utility Model Content The purpose of this invention is to address the shortcomings of existing technologies, such as the inability to precisely control the upper limit of torque to protect equipment, workpieces, and sensors; the inability to prevent torque from rising further by slipping, disengaging, or cutting off power transmission when the torque reaches a preset threshold, thus protecting the sensors; the lack of a maximum torque adjustment component, preventing flexible adjustment of the maximum torque threshold that the device can withstand or monitor to adapt to the needs of different sensors; and the inability to simultaneously ensure safety, adaptability, and measurement accuracy, thus failing to guarantee the device's adaptability to different scenarios.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a torque sensor adjustment structure, including a main housing, a force-bearing rod rotatably connected to the bottom of the main housing, a force-bearing plate fixedly connected to the bottom of the force-bearing rod, a rod sleeve provided on the outer surface of the force-bearing rod, and a force-applying rod provided on the inner surface of the rod sleeve; A torque limiting component is provided on one side of the rod sleeve; The top of the rod sleeve is equipped with a maximum torque adjustment component.

[0006] The technical effect of adopting the above-mentioned further solution is that the torque sensor converts the mechanical deformation caused by torque into a measurable electrical signal, and obtains the torque value through signal processing.

[0007] In a preferred embodiment, the torque limiting component includes a force-receiving groove, which is formed at the bottom of the rod sleeve. A first extension rod is fixedly connected to the outer surface of the force-receiving rod, and the outer surface of the first extension rod is disposed inside the force-receiving groove.

[0008] The technical effect of adopting the above-mentioned further solution is that when a torque is applied to the force plate, the torque will drive the force rod to rotate at the bottom of the main housing, and at the same time, the force applied by the first outstretched rod to the force groove will drive the rod sleeve to rotate.

[0009] In a preferred embodiment, a protective groove is provided on the side of the rod sleeve near the force-bearing groove, and a second extension rod is fixedly connected to the outer surface of the force-applying rod, with the outer surface of the second extension rod disposed inside the protective groove.

[0010] The technical effect of adopting the above-mentioned further solution is that, under the force applied by the protective groove to the second extension rod, the force-applying rod will be driven to rotate.

[0011] In a preferred embodiment, the maximum torque adjustment assembly includes a wear-resistant plate, the bottom of which is fixedly connected to the top of the rod sleeve. A spring is provided on the top of the wear-resistant plate, and an adjustment plate is fixedly connected to the top of the spring. Limiting strips are fixedly connected to both sides of the adjustment plate. Limiting grooves are formed on both sides of the inner surface of the main housing, and the outer surfaces of the two limiting strips are movably embedded in the limiting grooves.

[0012] The technical effect of adopting the above-mentioned further solution is that the adjusting plate and the limiting strip move along the slotting direction of the limiting groove and compress the spring at the bottom to change the thrust applied by the spring push rod sleeve. Therefore, only by generating a larger torque can the first extension rod be disengaged from the force groove.

[0013] In a preferred embodiment, a rotating rod is rotatably connected inside the main housing, and an auxiliary rod of the rotating rod extends out at one end. Two cranks are fixedly connected to the outer surface of the rotating rod. A connecting rod is rotatably connected to the end of each of the two cranks away from the rotating rod. The end of each of the two connecting rods away from the cranks is rotatably connected to the top of the adjusting plate through a bearing seat.

[0014] The technical effect of adopting the above-mentioned further solution is that the crank that follows the rotation of the rotating rod will drive one end of the connecting rod, and the other end of the connecting rod will push the adjusting plate through the shaft block.

[0015] In a preferred embodiment, a worm gear is fixedly connected to one end of the auxiliary rotating rod, and a worm is meshed with the outer surface of the worm gear.

[0016] The technical effect of adopting the above-mentioned further solution is that, under the meshing action of the worm and the worm wheel, the rotating rod will be driven to rotate inside the main housing.

[0017] In a preferred embodiment, a protective shell is rotatably connected to the outer surface of the worm gear, and an auxiliary rod of the worm gear extends out at one end. One side of the protective shell is fixedly connected to the outer surface of the main housing, and a knob is fixedly connected to the extended end of the auxiliary rod of the worm gear.

[0018] The technical effect of adopting the above-mentioned further solution is that the worm gear is driven to rotate inside the protective shell by the knob.

[0019] In a preferred embodiment, the top of the force-applying rod is provided with a square groove, and a torque sensor is movably embedded inside the square groove. Mounting plates are fixedly connected to both sides of the torque sensor, and the bottoms of the two mounting plates are fixedly connected to the top of the main housing.

[0020] The technical effect of adopting the above-mentioned further solution is that the torque sensor is installed on the top of the main unit housing through the mounting plate, and the detection head of the torque sensor is embedded in the square groove. The function of the torque sensor is to convert the mechanical deformation caused by torque into a measurable electrical signal.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model includes a torque limiting component that precisely controls the upper limit of torque to protect equipment, workpieces, and sensors. When the torque reaches a preset threshold, it prevents the torque from continuing to rise by slipping, disengaging, or cutting off power transmission, thereby protecting the sensors.

[0022] 2. The present invention provides a device with a maximum torque adjustment component. By flexibly adjusting the maximum torque threshold that the device can withstand or monitor, it can adapt to the needs of different sensors, while taking into account safety, adaptability and measurement accuracy, and ensuring the adaptability of the device to different scenarios. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a torque sensor adjustment structure provided by this utility model; Figure 2 A disassembled anatomical diagram of a torque sensor adjustment structure provided by this utility model; Figure 3 A cross-sectional structural diagram of a torque sensor adjustment structure provided by this utility model; Figure 4 A cross-sectional structural diagram of a torque sensor adjustment structure provided by this utility model; Figure 5 This is a disassembly diagram of a torque sensor adjustment structure provided by this utility model.

[0024] Legend: 1. Main casing; 2. Force-bearing rod; 3. Force-bearing plate; 4. Rod sleeve; 5. Force-applying rod; 6. Force-bearing groove; 7. First outrigger; 8. Protective groove; 9. Second outrigger; 10. Wear-resistant plate; 11. Spring; 12. Adjusting plate; 13. Limiting strip; 14. Limiting groove; 15. Rotating rod; 16. Crank; 17. Connecting rod; 18. Worm gear; 19. Worm; 20. Protective shell; 21. Knob; 22. Square groove; 23. Torque sensor; 24. Mounting plate. Detailed Implementation

[0025] 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.

[0026] Example 1, please refer to Figures 1 to 5 This utility model provides a technical solution: a torque sensor adjustment structure, including a main housing 1, a force-bearing rod 2 rotatably connected to the bottom of the main housing 1, a force-bearing plate 3 fixedly connected to the bottom of the force-bearing rod 2, a rod sleeve 4 provided on the outer surface of the force-bearing rod 2, and a force-applying rod 5 provided on the inner surface of the rod sleeve 4; a torque limiting component provided on one side of the rod sleeve 4; a maximum torque adjusting component provided on the top of the rod sleeve 4, the torque limiting component including a force groove 6, the force groove 6 being opened at the bottom of the rod sleeve 4, a first extension rod 7 fixedly connected to the outer surface of the force-bearing rod 2, the outer surface of the first extension rod 7 being disposed inside the force groove 6, a protective groove 8 being opened on the side of the rod sleeve 4 near the force groove 6, and a second extension rod 9 fixedly connected to the outer surface of the force-applying rod 5, the outer surface of the second extension rod 9 being disposed inside the protective groove 8.

[0027] In this embodiment, the torque sensor 23 is mounted on the top of the main housing 1 via the mounting plate 24, and the detection head of the torque sensor 23 is embedded inside the square groove 22. When torque is applied to the force plate 3, the torque will cause the force rod 2 to rotate at the bottom of the main housing 1. At the same time, the first extension rod 7 will cause the rod sleeve 4 to rotate under the force applied to the force groove 6, and the force applied to the second extension rod 9 under the force applied to the protective groove 8 will cause the force rod 5 to rotate. The torque is transmitted to the torque sensor 23. The function of the torque sensor 23 is to convert the mechanical deformation caused by torque into a measurable electrical signal, and obtain the torque value through signal processing.

[0028] Example 2, please refer to Figures 1 to 5 The maximum torque adjustment assembly includes a wear-resistant plate 10, the bottom of which is fixedly connected to the top of the rod sleeve 4. A spring 11 is provided on the top of the wear-resistant plate 10, and an adjustment plate 12 is fixedly connected to the top of the spring 11. Limiting strips 13 are fixedly connected to both sides of the adjustment plate 12. Limiting grooves 14 are provided on both sides of the inner surface of the main housing 1. The outer surfaces of the two limiting strips 13 are movably embedded in the limiting grooves 14. A rotating rod 15 is rotatably connected inside the main housing 1, and an auxiliary rod of the rotating rod 15 extends out at one end. Two cranks 16 are fixedly connected to the outer surface of the rotating rod 15. Connecting rods 17 are rotatably connected to the ends of the two cranks 16 away from the rotating rod 15. One end of the handle 16 is rotatably connected to the top of the adjusting plate 12 via a bearing seat. The end of the auxiliary rod of the rotating rod 15 is fixedly connected to the worm gear 18. The outer surface of the worm gear 18 is meshed with the worm 19. The outer surface of the worm 19 is rotatably connected to the protective shell 20, and one end of the auxiliary rod of the worm 19 extends out. One side of the protective shell 20 is fixedly connected to the outer surface of the main housing 1. The end of the auxiliary rod of the worm 19 is fixedly connected to the knob 21. The top of the force rod 5 is provided with a square groove 22. The inside of the square groove 22 is movably embedded with a torque sensor 23. Both sides of the torque sensor 23 are fixedly connected to mounting plates 24. The bottom of the two mounting plates 24 are fixedly connected to the top of the main housing 1.

[0029] In this embodiment, when the torque is too high, the first extension rod 7 will slide out of the force-receiving groove 6, and the second extension rod 9 will simultaneously be placed below the protective groove 8, compressing the spring 11 between the wear-resistant plate 10 and the adjusting plate 12. This prevents the force-receiving rod 2 from transmitting torque to the rod sleeve 4, thus protecting the torque sensor 23 from overload. When different torque sensors 23 have different maximum acceptable torques, this can be adjusted by adjusting the thrust applied by the spring 11. The knob 21 drives the worm gear 19 in the protective shell 20. Internal rotation, under the meshing action of worm gear 19 and worm wheel 18, will drive the rotating rod 15 to rotate inside the main housing 1. The crank 16 that rotates with the rotating rod 15 will drive one end of the connecting rod 17. The other end of the connecting rod 17 will push the adjusting plate 12 through the shaft block, so that the adjusting plate 12 and the limiting strip 13 move along the slotting direction of the limiting groove 14 and compress the spring 11 at the bottom to change the thrust applied by the spring 11 push rod sleeve 4. Therefore, only by generating a larger torque will the first outstretched rod 7 disengage from the force groove 6.

[0030] Working principle: First, the torque sensor 23 is installed on the top of the main housing 1 via the mounting plate 24. Simultaneously, the detection head of the torque sensor 23 is embedded inside the square groove 22. When torque is applied to the force plate 3, the torque causes the force rod 2 to rotate at the bottom of the main housing 1. Simultaneously, the force exerted by the first extended rod 7 on the force groove 6 causes the rod sleeve 4 to rotate. At the same time, the force exerted by the protective groove 8 on the second extended rod 9 causes the force rod 5 to rotate, transmitting the torque to the torque sensor 23. The torque sensor 23 converts the mechanical deformation caused by torque into a measurable electrical signal. The torque value is obtained through signal processing. However, when the torque is too high, the first extended rod 7 will slide out of the force groove 6, and the second extended rod 9 will simultaneously be positioned below the protective groove 8, compressing the wear-resistant plate 10 and the adjusting plate 1. Spring 11 between 2 prevents the force-bearing rod 2 from transmitting torque to the rod sleeve 4, thus protecting the torque sensor 23 from overload. When different torque sensors 23 have different maximum acceptable torque, the adjustment can be made by adjusting the thrust applied by spring 11. The knob 21 drives the worm 19 to rotate inside the protective shell 20. Under the meshing action of the worm 19 and the worm wheel 18, the rotating rod 15 will rotate inside the main housing 1. The crank 16 that rotates with the rotating rod 15 will drive one end of the connecting rod 17. The other end of the connecting rod 17 will push the adjusting plate 12 through the shaft block, so that the adjusting plate 12 and the limiting strip 13 move down along the slotting direction of the limiting groove 14 and compress the spring 11 at the bottom to change the thrust applied by the spring 11 push rod sleeve 4. Therefore, only by generating a larger torque will the first outstretched rod 7 disengage from the force-bearing groove 6.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A torque sensor adjusting structure comprising a main housing (1), characterized in that, The bottom of the main housing (1) is rotatably connected to a force-bearing rod (2), the bottom of the force-bearing rod (2) is fixedly connected to a force-bearing plate (3), the outer surface of the force-bearing rod (2) is provided with a rod sleeve (4), and the inner surface of the rod sleeve (4) is provided with a force-applying rod (5). A torque limiting component is provided on one side of the sleeve (4); The top of the sleeve (4) is provided with a maximum torque adjustment component.

2. The torque sensor adjustment structure according to claim 1, characterized by: The torque limiting component includes a force groove (6), which is opened at the bottom of the sleeve (4). A first extension rod (7) is fixedly connected to the outer surface of the force rod (2), and the outer surface of the first extension rod (7) is set inside the force groove (6).

3. The torque sensor adjustment structure of claim 2, wherein: The sleeve (4) has a protective groove (8) on the side near the force groove (6), and the outer surface of the force-applying rod (5) is fixedly connected to a second extension rod (9), the outer surface of the second extension rod (9) is set inside the protective groove (8).

4. The torque sensor adjustment structure of claim 1, wherein: The maximum torque adjustment assembly includes a wear-resistant plate (10), the bottom of which is fixedly connected to the top of the rod sleeve (4). A spring (11) is provided on the top of the wear-resistant plate (10), and an adjustment plate (12) is fixedly connected to the top of the spring (11). Limiting strips (13) are fixedly connected to both sides of the adjustment plate (12). Limiting grooves (14) are opened on both sides of the inner surface of the main housing (1). The outer surfaces of the two limiting strips (13) are movably embedded in the limiting grooves (14).

5. The torque sensor adjustment structure of claim 4, wherein: The main housing (1) is rotatably connected to a rotating rod (15), and an auxiliary rod of the rotating rod (15) extends out one end. Two cranks (16) are fixedly connected to the outer surface of the rotating rod (15). The ends of the two cranks (16) away from the rotating rod (15) are rotatably connected to connecting rods (17). The ends of the two connecting rods (17) away from the cranks (16) are rotatably connected to the top of the adjusting plate (12) through a bearing seat.

6. The torque sensor adjustment structure of claim 5, wherein: One end of the auxiliary rod of the rotating rod (15) is fixedly connected to a worm gear (18), and a worm (19) is meshed with the outer surface of the worm gear (18).

7. The torque sensor adjustment structure according to claim 6, characterized in that: The outer surface of the worm (19) is rotatably connected to a protective shell (20), and one end of the auxiliary rod of the worm (19) extends out. One side of the protective shell (20) is fixedly connected to the outer surface of the main body shell (1), and a knob (21) is fixedly connected to the end of the auxiliary rod of the worm (19).

8. The torque sensor adjustment structure according to claim 1, characterized in that: The top of the force-applying rod (5) is provided with a square groove (22), and a torque sensor (23) is movably embedded inside the square groove (22). Mounting plates (24) are fixedly connected to both sides of the torque sensor (23), and the bottoms of the two mounting plates (24) are fixedly connected to the top of the main housing (1).

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