Dynamic torque sensor for coupler

Abstract

The utility model discloses a dynamic torque sensor for a coupler, and belongs to the technical field of dynamic torque sensors. The sensor mainly comprises a sensor main body, wherein two ends of the sensor main body are provided with flange plates; the couplings are arranged on the two sides of the sensor main body; one side of the wireless transmission rotor is further provided with a rotating speed code disc, and the rotating speed code disc is used for measuring the rotating speed of the coupler in movement; the wireless transmission stator is arranged on the outer side of the sensor main body in a sleeving manner; and the patch area is arranged on the surface of the sensor main body, and a specific torsion measuring strain gauge is pasted at the patch area to form a Wheatstone bridge which is connected to the wireless transmission rotor. According to the dynamic torque sensor for the coupler, constraint of the electric wire in the measurement process is prevented, and the test performance is improved.

Description

Technical Field

[0001] This application relates to the technical field of dynamic torque sensors, and specifically to a dynamic torque sensor for couplings. Background Art

[0002] A dynamic torque sensor is a precision measuring instrument used to measure various torques, rotational speeds, and mechanical powers. Its application range is very wide. In the field of industrial research and development, the monitoring of engines, motors, and drive systems of various automobiles, ships, etc. is inseparable from it. When the developed products want to develop towards higher efficiency and higher safety, accurate torque measurement is essential. When the monitoring is more precise, the efficiency can be maximized while ensuring safety.

[0003] However, in the process of using the existing dynamic torque sensors, there are usually a large number of wires electrically connected to the sensors when powered on. As a result, during the measurement process, it will be restricted by the wires, which not only reduces the test performance but also increases the failure rate, affecting the test accuracy. Therefore, it is necessary to provide a dynamic torque sensor for couplings to solve the above problems.

[0004] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application. Therefore, it may include information that does not constitute the prior art. Summary of the Invention

[0005] Based on the above problems existing in the prior art, the problem to be solved by this application is to provide a dynamic torque sensor for couplings, which achieves preventing being restricted by wires during the measurement process and improves the test performance.

[0006] The technical solution adopted by this application to solve its technical problems is: A dynamic torque sensor for couplings, comprising:

[0007] A sensor body, with flange plates provided at both ends of the sensor body;

[0008] A coupling, which is installed on both sides of the sensor body;

[0009] A wireless transmission rotor, on one side of which a rotational speed code disk is also installed, and the rotational speed code disk is used to measure the rotational speed during the movement of the coupling;

[0010] A wireless transmission stator, which is sleeved outside the sensor body;

[0011] A patch area, which is provided on the surface of the sensor body. A specific torsion strain gauge is pasted at the patch area, thereby forming a Wheatstone bridge, and the Wheatstone bridge is connected to the wireless transmission rotor.

[0012] Further, mating holes are provided on both the wireless transmission rotor and the rotational speed code disk, and the mating holes are used for fixing to the flange plate.

[0013] Further, the wireless transmission rotor is provided as a two-piece splicable type, and rotor mounting holes are provided at one end where the two pieces are close to each other, and a rotor splicing plate is provided outside the rotor mounting holes.

[0014] Further, the wireless transmission stator is provided as a two-piece splicable type, and stator mounting holes are provided at one end where the two pieces are close to each other, and a stator splicing plate is provided outside the stator mounting holes.

[0015] Further, the wireless transmission stator has a bottom end, and the bottom end is used for mounting the wireless transmission stator to a fixed surface.

[0016] Further, a gasket is also provided between the coupling and the sensor body.

[0017] The beneficial effects of the present application are as follows: A dynamic torque sensor for a coupling provided by the present application forms a wireless transmission plate through the wireless transmission rotor and the wireless transmission stator, getting rid of the bondage of wires, preventing being restricted by wires during the measurement process, improving the test performance, reducing the failure rate at the same time, and ensuring the test accuracy.

[0018] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The following will refer to the drawings to make a further detailed description of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The schematic diagrams forming a part of the present application are used to provide a further understanding of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0020] Figure 1 is an overall schematic diagram of a dynamic torque sensor for a coupling in the present application;

[0021] Figure 2 is Figure 1 a side view schematic diagram of the overall structure in ;

[0022] Figure 3 is Figure 1 a separately disassembled and enlarged schematic diagram of the rotor and the stator in ;

[0023] Figure 4 is Figure 3 an enlarged schematic diagram of area A in ;

[0024] Figure 5 isFigure 1 Schematic plan view of the middle sensor body;

[0025] Figure 6 Schematic circuit diagram of a Wheatstone bridge;

[0026] Among them, each reference numeral in the figure:

[0027] 1. Sensor body; 11. Flange; 12. Coupling; 13. Gasket; 14. Bonding area;

[0028] 2. Wireless transmission rotor; 21. Revolution code disk; 22. Matching hole; 23. Rotor mounting hole; 24. Rotor splicing plate;

[0029] 3. Wireless transmission stator; 31. Bottom end; 32. Stator mounting hole; 33. Stator splicing plate;

[0030] 4. Wheatstone bridge; 41. EXC+; 42. EXC-; 43. Shiled; 44. SIG+; 45. SIG-. Specific implementation manners

[0031] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0033] As Figures 1 - 2 shown, the present application provides a dynamic torque sensor for a coupling, including a sensor body 1. Flanges 11 are fixedly installed at both ends of the sensor body 1. Multiple groups of mounting holes and avoidance holes are provided on the flanges 11, and couplings 12 are fixedly installed on both side ends of the sensor body 1 through bolts.

[0034] In order to prevent friction between the coupling 12 and the sensor body 1, a gasket 13 is further provided between the coupling 12 and the sensor body 1. When installing the coupling 12, the gasket 13 is placed on its installation surface.

[0035] Meanwhile, a wireless transmission rotor 2 and a wireless transmission stator 3 are installed on the sensor body 1. The wireless transmission rotor 2 and the wireless transmission stator 3 form a wireless transmission board, getting rid of the bondage of wires. On one side of the wireless transmission rotor 2, a speed code disk 21 is fixedly installed, and the speed code disk 21 is used to measure the rotational speed during the movement of the coupling 12.

[0036] As Figures 3 - 4 shown, in order to install the wireless transmission rotor 2 onto the sensor body 1, mating holes 22 are provided on both the wireless transmission rotor 2 and the speed code disk 21. Through the mating holes 22, it is convenient to fix them to the flange 11 with bolts, so that the wireless transmission rotor 2 and the speed code disk 21 rotate along with the sensor body 1.

[0037] In this application, the wireless transmission rotor 2 is set as a two - segment splicable type. At one end where the two segments are close to each other, a rotor mounting hole 23 is provided. At the same time, a rotor splicing plate 24 is provided outside the rotor mounting hole 23. During installation, first, the two - segment wireless transmission rotor 2 is sleeved outside the sensor body 1, then the rotor splicing plate 24 is aligned with the rotor mounting hole 23, and then fixed with bolts. Finally, it is fixed to the flange 11 through the mating holes 22.

[0038] Meanwhile, in order to fix the wireless transmission stator 3, the wireless transmission stator 3 has a bottom end 31, and it is installed on the required fixing surface through the bottom end 31. In this application, the wireless transmission stator 3 is also set as a two - segment splicable type. At one end where the two segments are close to each other, a stator mounting hole 32 is provided, and a stator splicing plate 33 is provided outside the stator mounting hole 32. During installation, first, the wireless transmission rotor 2 is fixed, then the two - segment wireless transmission stator 3 is sleeved outside the sensor body 1 and fixed with bolts, and finally the bottom end 31 is fixed.

[0039] It should be noted that the wireless transmission stator 3 is sleeved outside the sensor body 1 without contacting it, and there is a gap with a fixed distance between the wireless transmission rotor 2 and the wireless transmission stator 3.

[0040] As Figures 5 - 6 shown, in this application, a sticker area 14 is provided on the surface of the sensor body 1. A specific torsional strain gauge is pasted at the sticker area 14 with special glue, and then a Wheatstone bridge 4 is formed. The Wheatstone bridge 4 is connected to the wireless transmission rotor 2.

[0041] The Wheatstone bridge 4 includes EXC + 41, EXC - 42, Shiled 43, SIG + 44 and SIG - 45. Among them, EXC + 41 and EXC - 42 are input voltages, SIG + 44 and SIG - 45 are output signals, and Shiled 43 is a shield wire.

[0042] Subsequently, when the wireless transmission rotor 2 rotates with the sensor body 1, magnetic force cutting is generated with the wireless transmission stator 3 to form a transmission, which can directly provide power to the Wheatstone bridge 4 and collect the torsional electrical signal measured by the sensor body 1;

[0043] The rotation speed code disk 21 also transmits the measured rotation speed through this transmission. After the processed strain signal is amplified, it is then subjected to voltage / frequency conversion to become a frequency signal proportional to the torsional strain, thereby completing the detection. Therefore, it prevents being restricted by wires during the measurement process, improves the test performance, reduces the failure rate at the same time, and ensures the test accuracy.

[0044] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A dynamic torque sensor for a coupling, characterized in that: include: A sensor body (1), with flanges (11) provided at both ends of the sensor body (1); A coupling (12), the coupling (12) being mounted on both sides of the sensor body (1); A wireless transmission rotor (2), wherein a rotation speed code disk (21) is mounted on one side of the wireless transmission rotor (2), and the rotation speed code disk (21) is used to measure the rotation speed of the coupling (12) during movement; A wireless transmission stator (3), the wireless transmission stator (3) being sleeved on the outside of the sensor body (1); A patch area (14) is provided on the surface of the sensor body (1), and a specific torsion strain gauge is attached to the patch area (14), thereby forming a Wheatstone bridge (4), and the Wheatstone bridge (4) is connected to the wireless transmission rotor (2).

2. A dynamic torque sensor for a coupling according to claim 1, characterized in that: The wireless transmission rotor (2) and the speed code disc (21) are both provided with matching holes (22), and the matching holes (22) are used for fixing with the flange (11).

3. The dynamic torque sensor for a coupling according to claim 1, characterized in that: The wireless transmission rotor (2) is configured as two sections that can be spliced together, wherein a rotor mounting hole (23) is provided at one end of the two sections that are close to each other, and a rotor splicing plate (24) is provided outside the rotor mounting hole (23).

4. The dynamic torque sensor for a coupling according to claim 1, characterized in that: The wireless transmission stator (3) is configured as two sections that can be spliced together, wherein a stator mounting hole (32) is provided at one end of the two sections that are close to each other, and a stator splicing plate (33) is provided outside the stator mounting hole (32).

5. The dynamic torque sensor for a coupling according to claim 1, characterized in that: The wireless transmission stator (3) has a bottom end (31), and the bottom end (31) is used to mount the wireless transmission stator (3) on a fixed surface.

6. The dynamic torque sensor for a coupling according to claim 1, characterized in that: A gasket (13) is also provided between the coupling (12) and the sensor body (1).

Images