Torque sensor integrated speed reducer

Abstract

The utility model discloses a torque sensor integrated speed reducer, which is characterized in that an output shaft of the speed reducer is utilized to manufacture a torque sensor, a strain gauge on the output shaft is deformed to cause current signals to change, and a signal transmitting plate acquires signals, processes the signals and transmits the signals to a first coil plate; the first coil plate and the second coil plate are in wireless connection and transmit signals; meanwhile, the first coil plate and the second coil plate rotate relatively, and the coils are cut to generate inductance; when the load torque at one end of the output shaft of the speed reducer needs to be tested, the motor is loaded at one end of the input shaft of the speed reducer, and the torque of the output end of the speed reducer can be detected through signals returned by the second coil plate. The torque sensor has the advantages of being simple in structure, convenient to achieve, low in cost and small and exquisite in structure, the built-in microprocessor processes signals in real time in a high-frequency and high-resolution mode, torque sensor signals are output through wireless digital transmission, the resolution is higher, and the frequency response is higher. And when faults occur, maintenance and replacement are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, and more specifically, particularly to a torque sensor integrated reducer. Background Art

[0002] Commonly used reducers on the market are divided into planetary reducers and harmonic reducers. When the torque at the output end (load end) of the reducer needs to be obtained, a separate structure needs to be designed to achieve detection, which increases the difficulty of structural design and the cost. In addition, adding a torque detection structure at the output end of the reducer can not only fail to guarantee the torque test accuracy, but also bring certain difficulties to maintenance and maintenance. Utility Model Content

[0003] The utility model provides a torque sensor integrated reducer to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solutions: a torque sensor integrated reducer, including a housing, an input shaft and an output shaft are rotatably provided on the housing, and the input shaft and the output shaft are connected by a reduction assembly; a first mounting seat is provided at the front end of the housing, and a first coil plate is provided on the first mounting seat; a second mounting seat, a third mounting seat and a strain gauge are provided on the output shaft; a second coil plate is provided on the second mounting seat, and a signal transmitting plate is provided on the third mounting seat, the strain gauge is electrically connected to the signal transmitting plate, and the signal transmitting plate is electrically connected to the second coil plate; the first coil plate and the second coil plate are arranged opposite to each other, and are used for wireless power supply and wireless transmission between the first coil plate and the second coil plate.

[0004] Preferably, the first mounting seat is fixedly connected to the box body, the first coil plate is fixedly connected to the first mounting seat, the first coil plate is provided with a through hole for the output shaft to pass through, and the first coil plate and the output shaft can rotate relative to each other.

[0005] Preferably, a first coil is wound on the first coil plate, and a second coil is wound on the second coil plate, and the first coil and the second coil are arranged in relative coupling; the signal transmitting board is used to monitor the current signal data of the strain gauge and transmit the voltage signal data to the first coil, and the first coil transmits the voltage signal data to the second coil by wireless transmission; the second coil transmits electrical energy to the first coil, and the first coil supplies power to the signal transmitting board.

[0006] Preferably, a control device is further included, and the control device is connected to the first coil board via a cable; the control device supplies power to the first coil board and receives a signal sent by the first coil board.

[0007] Preferably, a microprocessor is provided on the signal transmitting board, and the microprocessor is used to digitally process the current signal generated by the strain gauge due to deformation, and transmit the processed data to the first coil board in a wired connection manner, and the first coil board transmits the data to the second coil board in a wireless connection manner, and the second coil board transmits the data to the control device in a wired connection manner.

[0008] Preferably, a display device connected to the control device is further included, the display device includes a display screen and control buttons, and the display screen is used to display parameter information output by the control device.

[0009] Preferably, a wireless communication module is provided in the control device, and the wireless communication module is any one or a combination of a Bluetooth module, a ZigBee module, a WiFi module and a mobile communication module.

[0010] Preferably, the housing comprises a front shell, a middle cylinder and a rear shell, the reduction assembly is installed in the middle cylinder, the input shaft is rotatably installed on the rear shell, and the output shaft is rotatably installed on the front shell; the first mounting seat is connected to the front shell.

[0011] Preferably, a protective cover is further provided at the front end of the front shell, and the protective cover wraps the first mounting seat, the second mounting seat, the third mounting seat and the strain gauge.

[0012] Preferably, the reduction assembly is a planetary gear reduction assembly.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model uses the output shaft of the reducer to make a torque sensor, and the current signal changes by generating deformation on the strain gauge on the output shaft, and the signal transmitter collects the signal and transmits it to the first coil plate after processing, and the first coil plate and the second coil plate are wirelessly connected and transmit the signal; at the same time, the first coil plate and the second coil plate rotate relative to each other, and the coil cutting generates inductance; when it is necessary to test the load torque at one end of the output shaft of the reducer, the motor is loaded at one end of the input shaft of the reducer, and the torque at the output end of the reducer can be detected by the signal transmitted back by the second coil plate; the utility model has the advantages of simple structure, convenient implementation, low cost and compact structure, and the built-in microprocessor processes the signal in real time with high frequency and high resolution, and outputs the torque sensor signal through wireless digital transmission, with higher resolution and higher frequency response. When encountering a fault, maintenance and replacement are also more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a torque sensor integrated reducer according to an embodiment of the utility model;

[0015] exist Figure 1In the figure, the corresponding relationship between the names of the components and the numbers of the drawings is as follows:

[0016] 1--housing, 2--input shaft, 3--output shaft, 4--reduction assembly, 5--first mounting seat, 6--first coil plate, 7--second mounting seat, 8--third mounting seat, 9--strain gauge, 10--second coil plate, 11--signal transmitting board. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The attached drawings are only for reference and explanation purposes and are not used to limit the disclosed embodiments. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0018] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Please refer to Figure 1The utility model provides a torque sensor integrated reducer, including a housing 1, on which an input shaft 2 and an output shaft 3 are rotatably provided, and the input shaft 2 and the output shaft 3 are transmission-connected via a reduction assembly 4; a first mounting seat 5 is provided at the front end of the housing 1, and a first coil plate 6 is provided on the first mounting seat 5; a second mounting seat 7, a third mounting seat 8 and a strain gauge 9 are provided on the output shaft 3; a second coil plate 10 is provided on the second mounting seat 7, and a signal transmitting plate 11 is provided on the third mounting seat 8, the strain gauge 9 is electrically connected to the signal transmitting plate 11, and the signal transmitting plate 11 is electrically connected to the second coil plate 10; the first coil plate 6 and the second coil plate 10 are arranged opposite to each other, and are used for wireless power supply and wireless transmission between the first coil plate 6 and the second coil plate 10.

[0021] In the embodiment of the utility model, the first coil plate 6 and the second coil plate 10 are circuit boards covered with coils. The first coil plate 6 is fixed in the first mounting seat 5, and the first mounting seat 5 is fixed and connected to the box body 1. The second coil plate 10 is mounted on the output shaft 3 through the second mounting seat 7 and rotates with the output shaft 3. Therefore, when the output shaft 3 rotates, the second coil plate 10 rotates accordingly. The strain gauge 9 is mounted on the output shaft 3, and the signal of the strain gauge 9 is connected to the signal transmitting board 11. When the output shaft 3 rotates, the strain gauge 9 is deformed to cause the current signal to change. After the signal is processed by the signal transmitting board 11, it is transmitted through the wireless connection between the second coil plate 10 and the second coil plate 10. At the same time, when the second coil plate 10 and the first coil plate 6 rotate relative to each other, the coil cutting generates inductance, and this signal is also transmitted to the main control device, control unit or host computer of the reducer by wired connection, completing the signal acquisition and real-time display parameters.

[0022] When it is necessary to detect the load torque at the 3rd end of the reducer output shaft, load the motor at the 2nd end of the reducer input shaft to detect the torque at the output end of the reducer.

[0023] Preferably, the first mounting seat 5 is fixedly connected to the box body 1, the first coil plate 6 is fixedly connected to the first mounting seat 5, the first coil plate 6 is provided with a through hole for the output shaft 3 to pass through, and the first coil plate 6 and the output shaft 3 can rotate relative to each other.

[0024] Preferably, a first coil is wound on the first coil plate 6, and a second coil is wound on the second coil plate 10, and the first coil and the second coil are arranged in relative coupling; the signal transmitting board 11 is used to monitor the current signal data of the strain gauge 9 and transmit the voltage signal data to the first coil, and the first coil transmits the voltage signal data to the second coil by wireless transmission; the second coil transmits electrical energy to the first coil, and the first coil supplies power to the signal transmitting board 11.

[0025] In this embodiment, the first coil and the second coil are arranged to be coupled relative to each other, and the two form a resonant coupling network, which can realize data transmission while transmitting electrical energy.

[0026] Preferably, a control device is further included, and the control device is connected to the first coil plate 6 via a cable; the control device supplies power to the first coil plate 6 and receives a signal sent by the first coil plate 6. In this embodiment, the control device and the second coil plate 10 are connected by wire, and the control device supplies power to the second coil plate 10 via a cable, and the second coil plate 10 supplies power to the first coil plate 6 wirelessly.

[0027] Preferably, the signal transmitting board 11 is provided with a microprocessor, and the microprocessor is used to digitally process the current signal generated by the strain gauge 9 due to deformation, and transmit the processed data to the first coil plate 6 in a wired connection manner, and the first coil plate 6 transmits the data to the second coil plate 10 in a wireless connection manner, and the second coil plate 10 transmits the data to the control device in a wired connection manner. In this embodiment, the signal generated by the strain gauge 9 is first digitally processed by the microprocessor inside the signal transmitting board 11 and then sent out wirelessly through the first coil plate 6, and a single set of coils is used to realize the two-way transmission of digital signals and power.

[0028] Preferably, a display device connected to the control device is also included, the display device includes a display screen and a control button, and the display screen is used to display the parameter information output by the control device. Through the above structural design, the control button can set the working parameters or the parameter type to be displayed, and the display screen can display the torque and speed of the reducer in real time.

[0029] Preferably, the control device is provided with a wireless communication module, and the wireless communication module is any one or a combination of a Bluetooth module, a ZigBee module, a WiFi module and a mobile communication module. By providing the wireless communication module, the signal data generated by the strain gauge 9 and the inductance signal generated by the first coil plate 6 and the second coil plate 10 can be uploaded to the server or the host computer through the wireless communication module after processing, and the user can remotely access the data through a smart terminal or a mobile phone.

[0030] Preferably, the housing 1 comprises a front shell, a middle cylinder and a rear shell, the reduction assembly 4 is installed in the middle cylinder, the input shaft 2 is rotatably installed on the rear shell, and the output shaft 3 is rotatably installed on the front shell; the first mounting seat 5 is connected to the front shell.

[0031] Preferably, a protective cover is further provided at the front end of the front shell, and the protective cover wraps the first mounting seat 5, the second mounting seat 7, the third mounting seat 8 and the strain gauge 9. In this embodiment, the protective cover is provided at the front end of the front shell and protects various functional components at one end of the sensor.

[0032] Preferably, the reduction assembly 4 is a planetary gear reduction assembly.

[0033] Compared with the prior art, the utility model has the following beneficial effects: the utility model uses the output shaft of the reducer to make a torque sensor, and the current signal changes by generating deformation on the strain gauge on the output shaft, and the signal transmitter collects the signal and transmits it to the first coil plate after processing, and the first coil plate and the second coil plate are wirelessly connected and transmit the signal; at the same time, the first coil plate and the second coil plate rotate relative to each other, and the coil cutting generates inductance; when it is necessary to test the load torque at one end of the output shaft of the reducer, the motor is loaded at one end of the input shaft of the reducer, and the torque at the output end of the reducer can be detected by the signal transmitted back by the second coil plate; the utility model has the advantages of simple structure, convenient implementation, low cost and compact structure, and the built-in microprocessor processes the signal in real time with high frequency and high resolution, and outputs the torque sensor signal through wireless digital transmission, with higher resolution and higher frequency response. When encountering a fault, maintenance and replacement are also more convenient.

[0034] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A torque sensor integrated reducer, characterized in that: The invention comprises a housing (1), on which an input shaft (2) and an output shaft (3) are rotatably arranged, and the input shaft and the output shaft are transmission-connected via a reduction assembly (4); a first mounting seat (5) is arranged at the front end of the housing, and a first coil plate (6) is arranged on the first mounting seat; a second mounting seat (7), a third mounting seat (8) and a strain gauge (9) are arranged on the output shaft; a second coil plate (10) is arranged on the second mounting seat, and a signal transmitting plate (11) is arranged on the third mounting seat, the strain gauge is electrically connected to the signal transmitting plate, and the signal transmitting plate is electrically connected to the second coil plate; the first coil plate and the second coil plate are arranged opposite to each other, and are used for wireless power supply and wireless transmission between the first coil plate and the second coil plate.

2. The torque sensor integrated reducer according to claim 1, characterized in that: The first mounting seat is fixedly connected to the box body, the first coil plate is fixedly connected to the first mounting seat, a through hole is provided on the first coil plate for the output shaft to pass through, and the first coil plate and the output shaft can rotate relative to each other.

3. The torque sensor integrated reducer according to claim 1, characterized in that: A first coil is wound on the first coil plate, and a second coil is wound on the second coil plate, and the first coil and the second coil are arranged to be coupled relative to each other; the signal transmitting board is used to monitor the current signal data of the strain gauge and transmit the current signal data to the first coil, and the first coil transmits the current signal data to the second coil by wireless transmission; the second coil transmits electric energy to the first coil, and the first coil supplies power to the signal transmitting board.

4. The torque sensor integrated reducer according to claim 1, characterized in that: A control device is also included, and the control device is connected to the first coil plate through a cable; the control device supplies power to the first coil plate and receives a signal sent by the first coil plate.

5. The torque sensor integrated reducer according to claim 4, characterized in that: A microprocessor is provided on the signal transmitting board, and the microprocessor is used to digitally process the current signal generated by the strain gauge due to deformation, and transmit the processed data to the first coil board in a wired connection manner. The first coil board transmits the data to the second coil board in a wireless connection manner, and the second coil board transmits the data to the control device in a wired connection manner.

6. The torque sensor integrated reducer according to claim 4, characterized in that: It also includes a display device connected to the control device, the display device includes a display screen and control buttons, and the display screen is used to display parameter information output by the control device.

7. The torque sensor integrated reducer according to claim 4, characterized in that: The control device is provided with a wireless communication module, and the wireless communication module is any one or a combination of a Bluetooth module, a ZigBee module, a WiFi module and a mobile communication module.

8. The torque sensor integrated reducer according to claim 1, characterized in that: The housing includes a front shell, a middle cylinder and a rear shell. The reduction assembly is installed in the middle cylinder. The input shaft is rotatably installed on the rear shell. The output shaft is rotatably installed on the front shell. The first mounting seat is connected to the front shell.

9. The torque sensor integrated reducer according to claim 8, characterized in that: A protective cover is also provided at the front end of the front shell, and the protective cover wraps the first mounting seat, the second mounting seat, the third mounting seat and the strain gauge.

10. The torque sensor integrated reducer according to any one of claims 1 to 9, characterized in that: The reduction assembly is a planetary gear reduction assembly.

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