A rotational speed and torque sensor and a transmission

Abstract

The application relates to the technical field of sensors, and provides a rotating speed and torque sensor and a transmission device. The rotating speed and torque sensor comprises a stator, a rotor, a mounting piece, a torque measurement assembly and a rotating speed measurement assembly. The stator has a containing cavity, the rotor is rotatably connected to the stator, the mounting piece is arranged in the containing cavity and is sleeved on the outer periphery of the rotor, the torque measurement assembly is arranged in the containing cavity and is connected to at least one of the rotor and / or the mounting piece, the rotating speed measurement assembly is arranged in the containing cavity, the rotating speed measurement assembly is clamped between the mounting piece and the stator along the radial direction of the rotor, and the rotating speed measurement assembly is arranged at the end, away from the rotor, of the torque measurement assembly along the radial direction of the rotor. The application can solve the problem that the rotating speed and torque sensor has a large volume, which can cause the occupied space among a driving device, the rotating speed and torque sensor and a rotating equipment to be too large.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and in particular to a speed and torque sensor and a transmission device. Background Technology

[0002] A speed and torque sensor is a device installed between a drive unit and a rotating equipment.

[0003] The speed and torque sensor includes a stator, a rotor, a speed measurement module, and a torque measurement module. The rotor, speed measurement module, and torque measurement module are all located inside the stator. The rotor is connected to the drive device and the rotating equipment respectively.

[0004] In related technologies, speed and torque sensors have the problem of large size, which leads to excessive space occupation between the drive device, speed and torque sensor and rotating equipment. Summary of the Invention

[0005] This application provides a speed and torque sensor and a transmission device, which can solve the problem of the large size of the speed and torque sensor, which leads to excessive space occupation between the drive device, the speed and torque sensor and the rotating equipment.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] In a first aspect, this application provides a speed and torque sensor, comprising:

[0008] Stator, the stator having a receiving cavity;

[0009] The rotor is rotatably connected to the stator;

[0010] The mounting component is located within the receiving cavity and is fitted onto the outer periphery of the rotor;

[0011] A torque measuring component is disposed within the receiving cavity, and the torque measuring component is connected to at least one of the rotor and / or the mounting component;

[0012] A speed measuring component is disposed within the receiving cavity along the radial direction of the rotor, and the speed measuring component is sandwiched between the mounting component and the stator;

[0013] Along the radial direction of the rotor, the speed measuring component is spaced apart at the end of the torque measuring component away from the rotor.

[0014] In some embodiments, the torque measurement component includes:

[0015] Strain gauges are attached to the rotor;

[0016] A control element is disposed on the mounting element and electrically connected to the strain gauge;

[0017] The first coil is insulated and sleeved on the mounting component and electrically connected to the control component;

[0018] The second coil is arranged in a ring around the receiving cavity and is electrically connected to the power supply;

[0019] Along the radial direction of the rotor, the second coil and the first coil are spaced apart.

[0020] In some embodiments, a measuring part is provided on the outer wall of the mounting member on the side opposite to the rotor. Multiple measuring parts are provided and spaced apart along the circumferential direction of the rotor.

[0021] The rotational speed measurement component includes:

[0022] A speed sensor is disposed within the receiving cavity along the radial direction of the rotor, and the speed sensor and the mounting component are spaced apart.

[0023] The speed sensor and the measuring unit are configured together.

[0024] In some implementations, it also includes:

[0025] A wireless transmitter is disposed on the rotor and electrically connected to the control unit;

[0026] A wireless receiver is disposed in the receiving cavity and is configured in conjunction with the wireless transmitter;

[0027] The wireless transmitter and the first coil are spaced apart along the axial direction of the rotor.

[0028] In some implementations, it also includes:

[0029] An electromagnetic shielding assembly is sleeved on the rotor along the axial direction of the rotor, and the electromagnetic shielding assembly is located between the wireless transmitter and the first coil;

[0030] Along the axial direction of the rotor, the wireless transmitter, the electromagnetic shielding assembly, and the first coil are arranged sequentially at intervals.

[0031] Alternatively, along the axial direction of the rotor, the first coil, the electromagnetic shielding assembly, and the wireless transmitter are arranged sequentially at intervals.

[0032] In some embodiments, the electromagnetic shielding assembly includes:

[0033] A fixing member is detachably sleeved on the rotor, and the fixing member has a first limiting part;

[0034] A metal sleeve having a second limiting part and a third limiting part, the first limiting part and the second limiting part being configured to cooperate; the mounting member having a fourth limiting part, the fourth limiting part and the third limiting part being configured to cooperate;

[0035] Along the axial direction of the rotor, the metal sleeve is sandwiched between the fixing member and the mounting member, and is connected to the fixing member and the mounting member respectively;

[0036] Alternatively, along the axial direction of the rotor, the metal sleeve is detachably fitted onto the fixing member, and the metal sleeve abuts against the mounting member.

[0037] In some implementations, it also includes:

[0038] An insulating component is sleeved on at least one of the fixing member and / or the mounting member and is fastened to the metal sleeve. The insulating component has an insulating cavity for accommodating the first coil or one of the wireless transmitters.

[0039] In some embodiments, two insulating components are provided, with the two insulating components respectively disposed at both ends of the metal sleeve along the axial direction of the rotor;

[0040] Two insulating cavities are provided, spaced apart along the axial direction of the rotor;

[0041] The first coil and the wireless transmitter are respectively disposed in the two insulating cavities.

[0042] In some embodiments, the insulating component includes:

[0043] A first insulating sleeve is fitted onto at least one of the fixing member and / or the mounting member;

[0044] The second insulating sleeve is fitted around the outer periphery of the first insulating sleeve and is fastened to the metal sleeve.

[0045] The first insulating sleeve and the second insulating sleeve together form the insulating cavity.

[0046] Secondly, this application provides a transmission device, including a speed and torque sensor.

[0047] This speed and torque sensor, with its mounting components, can support both the torque measurement component and the speed measurement component. The torque measurement component measures the rotor's torque, and the speed measurement component measures the rotor's speed. By positioning the speed measurement component at intervals along the rotor's radial direction, away from the torque measurement component, the space occupied by the speed and torque sensor can be reduced. Compared to having two bearings on the rotor, this speed and torque sensor does not have bearings, further reducing its space requirements. In some embodiments, the absence of bearings allows for faster rotor rotation, thereby improving the performance of the speed and torque sensor.

[0048] Therefore, the speed and torque sensor provided in the embodiments of this application can solve the problem of the large size of the speed and torque sensor, which leads to excessive space occupation between the drive device, the speed and torque sensor and the rotating equipment. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 A schematic diagram of the main structure of the speed and torque sensor provided in the embodiments of this application;

[0051] Figure 2 for Figure 1 Sectional view at point AA;

[0052] Figure 3 An exploded view of the speed and torque sensor provided for an embodiment of this application;

[0053] Figure 4 A schematic diagram of the connection structure of the fasteners and mounting components provided in the embodiments of this application.

[0054] Explanation of reference numerals in the attached figures:

[0055] 100-Stator;

[0056] 200-rotor;

[0057] 300 - Mounting component; 301 - Measuring section;

[0058] 400 - Torque measurement assembly; 401 - Strain gauge; 402 - Control unit; 403 - First coil; 404 - Second coil;

[0059] 500 - Speed ​​measurement component; 501 - Speed ​​sensor;

[0060] 600 - Wireless transmitter; 601 - Wireless receiver;

[0061] 700 - Electromagnetic shielding assembly; 701 - Fixing component; 7011 - First fixing component; 7012 - Second fixing component; 702 - Metal sleeve;

[0062] 800 - Insulation component; 801 - First insulating sleeve; 802 - Second insulating sleeve; 8021 - First sub-insulating sleeve; 8022 - Second sub-insulating sleeve;

[0063] 900 - Output frame; 901 - First cover plate; 902 - Second cover plate. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0065] In existing technologies, speed and torque sensors also include: bearings, with the inner ring of the bearing fitted around the outer circumference of the rotor and the outer ring fitted around the inner wall of the stator. The rotor rotates under the drive of the output shaft of the drive device, thereby causing the inner ring of the bearing to rotate relative to the outer ring. The bearings allow the rotor to be rotatably connected to the stator and also provide support for the rotor.

[0066] Furthermore, there are two bearings, located at both ends of the rotor along the axial direction. The two bearings are used to support the rotor, so that the connection between the rotor and the stator is more stable.

[0067] However, the bearing installation will increase the size of the speed and torque sensor, and when the rotor speed is 20,000 rpm or higher, the bearing installation will limit the increase of the rotor speed.

[0068] To overcome the shortcomings of the prior art, a mounting component can be provided to support the torque measurement component and the speed measurement component. By providing the torque measurement component, the torque of the rotor can be measured, and by providing the speed measurement component, the speed of the rotor can be measured. By spaced the speed measurement component at the end of the torque measurement component away from the rotor along the radial direction of the rotor, the space occupied by the speed and torque sensor can be reduced. Compared to providing two bearings on the rotor, the speed and torque sensor of this application does not provide bearings, which can reduce the space occupied by the speed and torque sensor. Moreover, in some embodiments, the absence of bearings can make the rotor rotate faster, thereby improving the performance of the speed and torque sensor.

[0069] Therefore, the speed and torque sensor provided in the embodiments of this application can solve the problem of the large size of the speed and torque sensor, which leads to excessive space occupation between the drive device, the speed and torque sensor and the rotating equipment.

[0070] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0071] like Figure 1 and Figure 2 As shown, this application embodiment provides a speed and torque sensor, including: a stator 100, a rotor 200, a mounting member 300, a torque measuring component 400, and a speed measuring component 500. The stator 100 has a receiving cavity, the rotor 200 is rotatably connected to the stator 100, the mounting member 300 is disposed in the receiving cavity and sleeved on the outer periphery of the rotor 200, the torque measuring component 400 is disposed in the receiving cavity and is connected to at least one of the rotor 200 and / or the mounting member 300, the speed measuring component 500 is disposed in the receiving cavity, and along the radial direction of the rotor 200, the speed measuring component 500 is sandwiched between the mounting member 300 and the stator 100, and along the radial direction of the rotor 200, the speed measuring component 500 is spaced apart at the end of the torque measuring component 400 away from the rotor 200.

[0072] The following sections provide detailed descriptions of the specific structures of grounding devices and substations, as well as various possible implementation methods.

[0073] It should be noted that, along the axial direction of rotor 200, one end of rotor 200 is used to connect the output shaft of an external drive device, and the other end of rotor 200 is used to connect the rotating shaft of an external rotating device. The speed and torque sensor can detect the speed and torque of rotor 200.

[0074] It should be noted that the torque or torque of the rotating shaft or the output shaft of the drive device during rotation will be transmitted to the rotor 200.

[0075] The torque measurement assembly 400 provided in the embodiments of this application includes: a strain gauge 401, a control element 402, a first coil 403, and a second coil 404. The strain gauge 401 is attached to the rotor 200. The control element 402 is disposed on the mounting member 300 and electrically connected to the strain gauge 401. The first coil 403 is insulatedly disposed on the mounting member 300 and electrically connected to the control element 402. The second coil 404 is arranged in a ring around the receiving cavity and electrically connected to the power supply. The second coil 404 and the first coil 403 are spaced apart along the radial direction of the rotor 200.

[0076] Understandably, by setting the strain gauge 401 and the control component 402, the mechanical deformation of the rotor 200 can be converted into an electrical signal by the control component 402. By placing the strain gauge 401, control component 402, and mounting component 300 on the rotor 200, the rotor 200 can drive the strain gauge 401, control component 402, and mounting component 300 to rotate synchronously, thereby achieving torque measurement of the rotor 200. When the rotor 200 rotates, it drives the first coil 403 on the mounting component 300 to rotate synchronously. The alternating current from the power supply passes through the second coil 404, generating a high-frequency alternating magnetic field. This magnetic field passes through the gap between the first coil 403 and the second coil 404 and couples to the first coil 403 on the rotor 200. According to Faraday's law of electromagnetic induction, the changing magnetic field induces an alternating voltage in the rotating first coil 403. This alternating voltage can be used as the excitation voltage for a Wheatstone bridge circuit. By insulating the first coil 403 and placing it on the mounting part 300, leakage between the first coil 403 and the mounting part 300 can be avoided, thereby providing leakage protection for the speed and torque sensor.

[0077] It should be noted that the control unit 402 is internally equipped with a Wheatstone bridge circuit. When the rotor 200 undergoes slight torsional deformation under torque, the resistance value of the strain gauge 401 changes accordingly. The Wheatstone bridge circuit converts the resistance change into a voltage signal, which is proportional to the applied torque.

[0078] It should be noted that the strain gauge 401 is attached to the outer peripheral wall of the rotor 200. The mechanical deformation generated by the rotor 200 will be transmitted to the surface of the strain gauge 401. When the strain gauge 401 undergoes mechanical deformation, the resistance value of the strain gauge 401 will change, thereby causing the internal current or voltage of the control component 402 to change.

[0079] It should be noted that there are multiple strain gauges 401, which are spaced apart along the circumference of the rotor 200, and each strain gauge 401 is electrically connected to the control unit 402.

[0080] Furthermore, the number of strain gauges 401 can be 1, 2, 3, 4, or other values ​​greater than or equal to 1, without any restrictions, and can be selected according to actual usage requirements.

[0081] Understandably, the cooperation between strain gauge 401 and control unit 402 can convert the mechanical deformation generated by rotor 200 into an electrical signal. Increasing the number of strain gauges 401 can improve the sensitivity of the speed and torque sensor.

[0082] In one embodiment, four strain gauges 401 are provided, and the multiple strain gauges 401 are arranged at intervals along the circumference of the rotor 200, and the multiple strain gauges 401 are electrically connected to the control unit 402 respectively.

[0083] Understandably, the cooperation between strain gauge 401 and control unit 402 can convert the mechanical deformation generated by rotor 200 into an electrical signal. Increasing the number of strain gauges 401 can improve the sensitivity of the speed and torque sensor.

[0084] like Figure 3 and Figure 4 As shown, in the embodiments of this application, the mounting member 300 is provided with a measuring part 301 on the outer wall of the side opposite to the rotor 200. Multiple measuring parts 301 are provided and are spaced apart along the circumferential direction of the rotor 200. The speed measuring assembly 500 includes a speed sensor 501, which is located in the receiving cavity and is spaced apart along the radial direction of the rotor 200. The speed sensor 501 and the mounting member 300 are arranged in cooperation.

[0085] It is understandable that when the rotor 200 rotates, it will drive the mounting part 300 to rotate synchronously, so that the measuring part 301 can alternately appear in the measuring range of the speed sensor 501, thereby enabling the speed sensor 501 to measure the rotation speed of the mounting part 300, and thus obtain the rotation speed of the rotor 200.

[0086] In one embodiment, the measuring unit 301 is a reflective strip, which is attached to the mounting member 300. The speed sensor 501 has a transmitting end and a receiving end. The transmitting end is used to emit light signals toward the reflective strip, and the receiving end is used to receive light signals reflected by the reflective strip.

[0087] It is understood that, through the above implementation method, the reflective strip, the mounting component 300 and the receiving end can cooperate to periodically block or reflect light signals, so that the speed sensor 501 can output pulse signals, and the speed can be obtained by calculating the pulse frequency.

[0088] The speed and torque sensor provided in the embodiments of this application further includes: a wireless transmitter 600 and a wireless receiver 601. The wireless transmitter 600 is disposed on the rotor 200 and electrically connected to the control unit 402. The wireless receiver 601 is disposed in the receiving cavity and is configured in cooperation with the wireless transmitter 600. The wireless transmitter 600 and the first coil 403 are spaced apart along the axial direction of the rotor 200.

[0089] It is understandable that by setting up a wireless transmitter 600 and a wireless receiver 601, and electrically connecting the wireless transmitter 600 and the control unit 402, the signal received by the strain gauge 401 by the control unit 402 can be transmitted to the wireless receiver 601 through the wireless transmitter 600.

[0090] It should be noted that the wireless transmitter 600 and the wireless receiver 601 have several different configuration methods. The configuration methods of the wireless transmitter 600 and the wireless receiver 601 will be illustrated with examples below.

[0091] In one embodiment, the wireless transmitter 600 is a transmitting tube, the wireless receiver 601 is a receiving tube, the transmitting tube is electrically connected to the control unit 402, and the receiving tube converts the optical signal received by the receiving tube into a preset signal output through the receiving board.

[0092] Furthermore, the preset signal can be a wave signal or an electrical signal, without restriction, and can be selected according to actual usage requirements.

[0093] Understandably, the control unit 402 can control the emission intensity or output power of the transmitting tube, enabling the transmitting tube to output a corresponding optical signal. The receiving tube can receive the optical signal from the transmitting tube, and the receiving board can output the optical signal received by the receiving tube as a preset output signal, thereby realizing the measurement of the torque of the rotor 200.

[0094] In one embodiment, the wireless transmitter 600 is a primary coil, and the wireless receiver is a secondary coil. The primary coil is connected to the controller 402, and the secondary coils are configured in cooperation. The secondary coil converts the magnetic signal received by the secondary coil into a preset signal output through a resolver-to-digital converter.

[0095] Furthermore, the preset signal can be a digital signal or an analog signal; there are no restrictions, and it can be selected according to actual usage requirements.

[0096] Understandably, the primary and secondary coils are coupled by a magnetic field, which enables the measurement of the torque of the rotor 200 by the signal received by the strain gauge 401 from the control unit 402 after passing through the primary coil, secondary coil and resolver digital converter.

[0097] It is understandable that there are no restrictions on the specific configuration of the wireless transmitter 600 and the wireless receiver 601, and they can be selected according to actual usage requirements.

[0098] The speed and torque sensor provided in the embodiments of this application further includes an electromagnetic shielding component 700, which is sleeved on the rotor 200 and located between the wireless transmitter 600 and the first coil 403 along the axial direction of the rotor 200.

[0099] It is understandable that by setting the electromagnetic shielding component 700, electromagnetic isolation can be achieved between the first coil 403 and the wireless transmitter 600, thereby reducing interference between the first coil 403 and the wireless transmitter 600, and making the operation of the speed and torque sensor more stable.

[0100] In one embodiment, the wireless transmitter 600, the electromagnetic shielding assembly 700, and the first coil 403 are arranged sequentially at intervals along the axial direction of the rotor 200.

[0101] It is understandable that by setting the electromagnetic shielding component 700, electromagnetic isolation can be achieved between the first coil 403 and the wireless transmitter 600, thereby reducing interference between the first coil 403 and the wireless transmitter 600, and making the operation of the speed and torque sensor more stable.

[0102] In one embodiment, the first coil 403, the electromagnetic shielding assembly 700, and the wireless transmitter 600 are arranged sequentially at intervals along the axial direction of the rotor 200.

[0103] It is understandable that by setting the electromagnetic shielding component 700, electromagnetic isolation can be achieved between the first coil 403 and the wireless transmitter 600, thereby reducing interference between the first coil 403 and the wireless transmitter 600, and making the operation of the speed and torque sensor more stable.

[0104] The electromagnetic shielding assembly 700 provided in the embodiments of this application includes: a fixing member 701 and a metal sleeve 702. The fixing member 701 is detachably sleeved on the rotor 200. The fixing member 701 has a first limiting part. The metal sleeve 702 has a second limiting part and a third limiting part. The first limiting part and the second limiting part are configured to cooperate. The mounting member 300 has a fourth limiting part. The fourth limiting part and the third limiting part are configured to cooperate.

[0105] Understandably, by setting the fixing member 701 and the metal sleeve 702, the mounting member 300 can be detachably installed on the rotor 200 through the fixing member 701 and the metal sleeve 702, thereby reducing the installation difficulty between the mounting member 300 and the rotor 200. Furthermore, the metal sleeve 702 also enables electromagnetic isolation between the first coil 403 and the wireless transmitter 600, thereby reducing interference between the first coil 403 and the wireless transmitter 600, and thus making the operation of the speed and torque sensor more stable.

[0106] It should be noted that the first limiting part can be a first limiting groove, and the second limiting part can be a first limiting protrusion. The first limiting groove and the first limiting protrusion are configured to cooperate. Alternatively, the first limiting part can be a first limiting protrusion, and the second limiting part can be a first limiting groove. The first limiting groove and the first limiting protrusion are configured to cooperate. There are no restrictions here, and the choice can be made according to actual usage requirements.

[0107] It should be noted that the third limiting part can be the second limiting groove, and the fourth limiting part can be the second limiting protrusion. The second limiting groove and the second limiting protrusion are configured to cooperate. Alternatively, the third limiting part can be the second limiting protrusion, and the fourth limiting part can be the second limiting groove. The second limiting groove and the second limiting protrusion are configured to cooperate. There are no restrictions here, and the choice can be made according to the actual use requirements.

[0108] In one embodiment, the rotor 200 has a threaded hole, and the fixing member 701 has a threaded through hole. The threaded through hole and the threaded hole are connected. The fixing member 701 and the rotor 200 are connected by bolts. The bolts pass through the threaded through hole and are threadedly connected to the threaded hole.

[0109] It is understood that the above-described embodiments facilitate the disassembly and installation of the rotor 200 and the fixing member 701.

[0110] In one embodiment, along the axial direction of the rotor 200, a metal sleeve 702 is sandwiched between the fixing member 701 and the mounting member 300, and is connected to the fixing member 701 and the mounting member 300 respectively.

[0111] Furthermore, the end of the mounting piece 300 away from the metal sleeve 702 abuts against the rotor 200.

[0112] It is understood that, through the above-described embodiments, the metal sleeve 702 and the fixing member 701 can limit the mounting member 300, thereby reducing the movement of the mounting member 300 along the axial direction of the rotor 200.

[0113] In one embodiment, along the axial direction of the rotor 200, the metal sleeve 702 is detachably sleeved on the fixing member 701, and the metal sleeve 702 abuts against the mounting member 300.

[0114] It is understood that, through the above-described embodiments, the metal sleeve 702 and the fixing member 701 can limit the mounting member 300, thereby reducing the movement of the mounting member 300 along the axial direction of the rotor 200.

[0115] Furthermore, when the metal sleeve 702 is detachably fitted onto the fixing member 701, the fixing member 701 includes a first fixing sub-member 7011 and a second fixing sub-member 7012, which are connected together. One of the first fixing sub-member 7011 and the second fixing sub-member 7012 is detachably connected to the rotor 200, and the other of the first fixing sub-member 7011 and the second fixing sub-member 7012 abuts against the mounting member 300. The first fixing sub-member 7011 and the second fixing sub-member 7012 are respectively connected to the metal sleeve 702.

[0116] It is understood that the above-described embodiments facilitate the fitting of the metal sleeve 702 onto the fixing member 701.

[0117] The speed and torque sensor provided in the embodiments of this application further includes: an insulating component 800, which is sleeved on at least one of the fixing member 701 and / or the mounting member 300 and is fastened to the metal sleeve 702. The insulating component 800 has an insulating cavity for accommodating one of the first coil 403 or the wireless transmitter 600.

[0118] Understandably, by setting the insulating component 800, the first coil 403 or the wireless transmitter 600 can be insulated from the rotor 200, thereby providing safety protection for the speed and torque sensor. Furthermore, by placing the first coil 403 or the wireless transmitter 600 within the insulating cavity, the insulating component 800 can also protect the first coil 403 or the wireless transmitter 600.

[0119] It should be noted that the insulation component 800 has a variety of different installation positions, and the installation positions of the insulation component 800 will be illustrated in the following examples.

[0120] In one embodiment, an insulating component 800 is fitted onto a fixing member 701, and an insulating cavity is used to accommodate a first coil 403 or a wireless transmitter 600.

[0121] It is understood that, through the above-described embodiments, the first coil 403 or the wireless transmitter 600 can be insulated from the fixing member 701, thereby providing safety protection for the speed and torque sensor. By placing the first coil 403 or the wireless transmitter 600 inside the insulating cavity, the insulating assembly 800 can also protect the first coil 403 or the wireless transmitter 600.

[0122] In one embodiment, an insulating component 800 is fitted onto a mounting member 300, and an insulating cavity is used to accommodate a first coil 403 or a wireless transmitter 600.

[0123] It is understood that, through the above-described embodiments, the first coil 403 or the wireless transmitter 600 can be insulated from the mounting component 300, thereby providing safety protection for the speed and torque sensor. By placing the first coil 403 or the wireless transmitter 600 within the insulating cavity, the insulating component 800 can also protect the first coil 403 or the wireless transmitter 600.

[0124] In one embodiment, two insulating components 800 are provided along the axial direction of the rotor 200, and the two insulating components 800 are respectively disposed at both ends of the metal sleeve 702. Two insulating cavities are provided along the axial direction of the rotor 200, and the two insulating cavities are spaced apart. The first coil 403 and the wireless transmitter 600 are respectively disposed in the two insulating cavities.

[0125] It is understood that, through the above-described embodiments, the first coil 403 or the wireless transmitter 600 can be insulated from the rotor 200, thereby providing safety protection for the speed and torque sensor. By placing the first coil 403 and the wireless transmitter 600 in two insulating cavities, the two insulating components 800 can also protect the first coil 403 and the wireless transmitter 600 respectively.

[0126] The insulating component 800 provided in the embodiments of this application includes: a first insulating sleeve 801 and a second insulating sleeve 802. The first insulating sleeve 801 is sleeved on at least one of the fixing member 701 and / or the mounting member 300. The second insulating sleeve 802 is sleeved on the outer periphery of the first insulating sleeve 801 and is fastened to the metal sleeve 702. The first insulating sleeve 801 and the second insulating sleeve 802 form an insulating cavity.

[0127] It is understood that, through the above-described embodiments, the first insulating sleeve 801 and the second insulating sleeve 802 can be arranged to form an insulating cavity, and by separating the first insulating sleeve 801 and the second insulating sleeve 802, it is convenient to place the first coil 403 and the wireless transmitter 600 into the insulating cavity.

[0128] In some embodiments, the speed and torque sensor provided in the present application further includes: an output frame 900, the inner ring of the output frame 900 being sleeved on the outer periphery of the fixing member 701, and the inner ring of the first insulating sleeve 801 being sleeved on the outer periphery of the output frame 900.

[0129] It is understandable that by setting the output frame 900, the fixing part 701 and the first insulating sleeve 801 can be connected respectively, and the first insulating sleeve 801 can also be protected.

[0130] It should be noted that when the insulating component 800 is sleeved on the fixing member 701, the first insulating sleeve 801 is sleeved on the fixing member 701.

[0131] It should be noted that when the insulating component 800 is fitted onto the mounting component 300, the first insulating sleeve 801 is fitted onto the mounting component 300.

[0132] It should be noted that the first coil 403 is sleeved on the first insulating sleeve 801.

[0133] It should be noted that when the wireless transmitter 600 is a primary coil, the primary coil is sleeved on the first insulating sleeve 801.

[0134] In one embodiment, the second insulating sleeve 802 includes a first sub-insulating sleeve 8021 and a second sub-insulating sleeve 8022 connected together. Along the axial direction of the rotor 200, the first insulating sleeve 801 is sandwiched between the first sub-insulating sleeve 8021 and the second sub-insulating sleeve 8022.

[0135] It is understood that the above-described implementation method facilitates the installation and removal of the second insulating sleeve 802.

[0136] In some embodiments, the speed and torque sensor provided in this application further includes: a first cover plate 901 and a second cover plate 902, wherein the first cover plate 901 is disposed on the end of the mounting member 300 away from the first insulating sleeve 801, and the second cover plate 902 is disposed on the end of the fixing member 701 away from the metal sleeve 702.

[0137] Understandably, the first cover plate 901 is used to protect the mounting component 300, and the second fixing component 701 is used to protect the fixing component 701. By setting the first cover plate 901 and the second cover plate 902, the internal components of the speed and torque sensor can be protected.

[0138] This application provides a transmission device, including the speed and torque sensor provided in any of the above embodiments.

[0139] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0140] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0141] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0142] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A rotational speed and torque sensor, characterized in that include: Stator (100), said stator (100) having a receiving cavity; The rotor (200) is rotatably connected to the stator (100). The mounting component (300) is disposed within the receiving cavity and sleeved on the outer periphery of the rotor (200); A torque measuring assembly (400) is disposed within the receiving cavity, and the torque measuring assembly (400) is connected to at least one of the rotor (200) and / or the mounting member (300); A speed measuring component (500) is disposed in the receiving cavity along the radial direction of the rotor (200), and the speed measuring component (500) is sandwiched between the mounting member (300) and the stator (100); Along the radial direction of the rotor (200), the speed measuring component (500) is spaced apart at one end of the torque measuring component (400) away from the rotor (200).

2. The speed and torque sensor according to claim 1, characterized in that, The torque measurement component (400) includes: Strain gauge (401) is attached to the rotor (200). A control element (402) is disposed on the mounting element (300) and electrically connected to the strain gauge (401); The first coil (403) is insulated and sleeved on the mounting component (300) and electrically connected to the control component (402); The second coil (404) is arranged in a ring around the receiving cavity and is electrically connected to the power supply; Along the radial direction of the rotor (200), the second coil (404) and the first coil (403) are spaced apart.

3. The speed and torque sensor according to claim 1, characterized in that, A measuring part (301) is provided on the outer wall of the mounting part (300) facing away from the rotor (200). Multiple measuring parts (301) are provided, and multiple measuring parts (301) are spaced apart along the circumferential direction of the rotor (200). The rotational speed measuring component (500) includes: A speed sensor (501) is disposed in the receiving cavity along the radial direction of the rotor (200), and the speed sensor (501) and the mounting member (300) are spaced apart; The speed sensor (501) and the measuring unit (301) are configured together.

4. The speed and torque sensor according to any one of claims 1-3, characterized in that, Also includes: A wireless transmitter (600) is disposed on the rotor (200) and electrically connected to the control unit (402); A wireless receiver (601) is disposed in the receiving cavity and is configured in conjunction with the wireless transmitter (600); The wireless transmitter (600) and the first coil (403) are spaced apart along the axial direction of the rotor (200).

5. The speed and torque sensor according to claim 4, characterized in that, Also includes: An electromagnetic shielding assembly (700) is sleeved on the rotor (200) along the axial direction of the rotor (200), and the electromagnetic shielding assembly (700) is located between the wireless transmitter (600) and the first coil (403). Along the axial direction of the rotor (200), the wireless transmitter (600), the electromagnetic shielding assembly (700), and the first coil (403) are arranged sequentially at intervals; Alternatively, along the axial direction of the rotor (200), the first coil (403), the electromagnetic shielding assembly (700), and the wireless transmitter (600) are arranged sequentially at intervals.

6. The speed and torque sensor according to claim 5, characterized in that, The electromagnetic shielding assembly (700) includes: A fixing member (701) is detachably sleeved on the rotor (200), and the fixing member (701) has a first limiting part; The metal sleeve (702) has a second limiting part and a third limiting part, the first limiting part and the second limiting part being configured to cooperate; the mounting part (300) has a fourth limiting part, the fourth limiting part and the third limiting part being configured to cooperate; Along the axial direction of the rotor (200), the metal sleeve (702) is sandwiched between the fixing member (701) and the mounting member (300), and is connected to the fixing member (701) and the mounting member (300) respectively; Alternatively, along the axial direction of the rotor (200), the metal sleeve (702) is detachably fitted onto the fixing member (701), and the metal sleeve (702) abuts against the mounting member (300).

7. The speed and torque sensor according to claim 6, characterized in that, Also includes: An insulating component (800) is sleeved on at least one of the fixing member (701) and / or the mounting member (300) and is fastened to the metal sleeve (702). The insulating component (800) has an insulating cavity for accommodating one of the first coil (403) or the wireless transmitter (600).

8. The speed and torque sensor according to claim 7, characterized in that, Two insulating components (800) are provided, and along the axial direction of the rotor (200), the two insulating components (800) are respectively disposed at both ends of the metal sleeve (702); Two insulating cavities are provided, and the two insulating cavities are spaced apart along the axial direction of the rotor (200); The first coil (403) and the wireless transmitter (600) are respectively disposed in the two insulating cavities.

9. The speed and torque sensor according to claim 7 or 8, characterized in that, The insulating component (800) includes: A first insulating sleeve (801) is fitted onto at least one of the fixing member (701) and / or the mounting member (300); The second insulating sleeve (802) is sleeved on the outer periphery of the first insulating sleeve (801) and is fastened to the metal sleeve (702); The first insulating sleeve (801) and the second insulating sleeve (802) enclose and form the insulating cavity.

10. A transmission device, characterized in that, The invention includes a speed and torque sensor according to any one of claims 1-9.

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