High-rotating-speed dynamic torque sensor based on wireless acquisition, processing and transmission signals

Abstract

The utility model relates to the technical field of strain sensors, in particular to a high-rotating-speed dynamic torque sensor based on wireless acquisition, processing and transmission signals, and solves the problems that when an existing slip ring type torque sensor and an existing sleeve winding type torque sensor are used for torque monitoring, friction contact occurs between sensor wires, copper wire winding is troublesome, and the torque monitoring accuracy is high. The axial run-out monitoring device solves the problems that in the prior art, axial run-out monitoring is inconvenient in the torque monitoring process, and then the abrasion degree of a torque sensor is inconvenient to detect, and comprises a sensor installation mechanism, a transmission maintaining mechanism and an axial run-out monitoring mechanism, and the transmission maintaining mechanism is installed on the inner side of the sensor installation mechanism; and a wireless receiving module is mounted on the inner side of the upper end of the sensor mounting mechanism. According to the invention, the rotating speed and the torque of the sensor can be dynamically monitored in a wireless power supply mode, the axial runout of the sensor can be synchronously monitored, and the abrasion loss of the sensor during high-speed rotation can be conveniently detected.

Description

Technical Field

[0001] This invention relates to the field of strain sensor technology, specifically to a high-speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals. Background Technology

[0002] When torque sensors are used in certain precision fields such as testing and measurement, mechanical experiments, automation, and the automotive industry, they are sensitive to the requirements of experimental equipment and measurement environment. The sensors are required to be as convenient as possible, and the integrity of the original structure of the measurement equipment and environment must be ensured. Currently, the power supply circuit of the torque sensing change area of ​​most torque sensors in the torque sensor industry is mainly realized by winding copper wire on slip rings and bushings. The power supply circuit of the torque sensing change area of ​​slip ring type torque sensors mainly relies on the copper wire connection between two relatively moving thin slip rings to achieve the power supply function.

[0003] The copper wire-wound torque sensor on the bushing achieves power supply to the torque sensing change area through the resonance principle of the coil between two relatively moving bushings. This is a technology that integrates wireless power supply, wired signal acquisition, wireless signal transmission, and wireless signal acquisition, reception, and processing. The copper wire-wound torque sensor on the bushing can avoid increasing the workload of workers welding circuits.

[0004] Existing slip ring torque sensors and wound wire torque sensors suffer from frictional contact between sensor wires during torque monitoring, resulting in cumbersome copper wire winding and making it difficult to monitor axial runout during torque monitoring, which in turn hinders the detection of wear on the torque sensor. Therefore, they do not meet current requirements. To address this, we propose a high-speed dynamic torque sensor based on wireless acquisition, processing, and transmission of signals. Summary of the Invention

[0005] The purpose of this invention is to provide a high-speed dynamic torque sensor based on wireless acquisition, processing and transmission signals, so as to solve the problems mentioned in the background art, where existing slip ring type torque sensors and wound wire type torque sensors have frictional contact between sensor wires during torque monitoring, copper wire winding is troublesome, and it is not convenient to monitor axial runout during torque monitoring, thus making it inconvenient to detect the wear degree of torque sensor.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-speed dynamic torque sensor based on wireless acquisition, processing and transmission signals, comprising a sensor mounting mechanism, a transmission holding mechanism and an axial runout monitoring mechanism. The transmission holding mechanism is mounted on the inner side of the sensor mounting mechanism, and a wireless receiving module is mounted on the inner side of the upper end of the sensor mounting mechanism. Axial runout monitoring mechanisms are mounted on both sides of the sensor mounting mechanism, and the two axial runout monitoring mechanisms are symmetrically mounted relative to the sensor mounting mechanism. The sensor mounting mechanism includes a sensor housing, and a sensor cover is fixedly mounted on the upper end of the sensor housing.

[0007] The axial runout monitoring mechanism includes a sealing cover, which is fixedly connected to the sensor housing. A mounting box is installed on one side of the sealing cover. A limiting corner block is slidably connected to the inner side of the upper end of the mounting box. A positioning seat is slidably connected to one side of the limiting corner block. Positioning racks are installed on both sides of the positioning seat. An mounting arc plate is installed between the two positioning racks. A transmission plate is installed on the lower end face of the mounting arc plate. Multiple resistance strips are installed between the transmission plate and the mounting arc plate. A support spring is provided on the lower end face of the transmission plate. A ball joint is installed on the inner side of the support spring. Pressure monitoring units are installed on both sides of the ball joint. A ball bearing mounting block is installed on the outer side of the bottom end of the ball joint. Contact balls are installed between both ends of the ball bearing mounting block and the mounting box.

[0008] Preferably, the sensor mounting mechanism further includes bearing retaining rings that are fixedly connected to the inner sides of both ends of the sensor housing, one of the bearing retaining rings having a first bearing mounting hole on one side, and the other bearing retaining ring having a second bearing mounting hole on one side, and the upper end face of the sensor housing having a lower plate positioning groove.

[0009] Preferably, the transmission holding mechanism includes an elastic shaft, which is rotatably connected to the sensor housing. An inner positioning bushing is fixedly installed on the outer side of the middle part of the elastic shaft. An outer positioning bushing is rotatably connected to the outer side of the inner positioning bushing. A third elastic retaining ring is installed at the front end of the inner positioning bushing. A speed testing gear ring is installed on the front end face of the third elastic retaining ring. A second elastic retaining ring is installed in front of the speed testing gear ring on the outer side of the elastic shaft. An input end transmission bearing is installed on the front end face of the second elastic retaining ring. A first elastic retaining ring is installed on the front end face of the input end transmission bearing. A resonant coil is installed on the rear end face of the outer positioning bushing. An oscillation coil is installed on the rear end face of the resonant coil. A fourth elastic retaining ring is installed on the rear end face of the oscillation coil. An output end transmission bearing is installed on the rear end face of the fourth elastic retaining ring.

[0010] Preferably, the wireless receiving module includes an upper power-connecting plate, and a lower power-connecting plate is installed below the upper power-connecting plate. The upper power-connecting plate and the lower power-connecting plate are fixedly connected by multiple overlapping copper pillars. A photoelectric speed sensor is fixedly installed on the lower end face of the lower power-connecting plate. The lower power-connecting plate is inserted into the inner side of the positioning groove of the lower plate. The sensor housing and sensor cover are fitted and installed on the outer side of the upper power-connecting plate and the lower power-connecting plate. The upper power-connecting plate, the lower power-connecting plate, the photoelectric speed sensor, and the multiple overlapping copper pillars are electrically connected. The bottom end of the photoelectric speed sensor passes through the positioning groove of the lower plate and fits on the outer side of the upper end of the speed testing gear ring.

[0011] Preferably, the two pressure monitoring units are symmetrically installed relative to the ball joint. Each pressure monitoring unit includes a connecting cross seat, a threaded mounting sleeve is installed in the middle of the connecting cross seat, a pressure sensor is fixedly installed on the inner side of the threaded mounting sleeve, the threaded mounting sleeve and the connecting cross seat are connected by threads, and the threaded mounting sleeve and the pressure sensor slide linearly back and forth along the center of the connecting cross seat.

[0012] Preferably, the two ends of the elastic shaft are rotatably connected to the sensor housing via an input-end transmission bearing and an output-end transmission bearing, respectively. The axis of the elastic shaft coincides with that of the sensor housing. The input-end transmission bearing is limited to the elastic shaft via a first elastic retaining ring and a second elastic retaining ring. Both the input-end transmission bearing and the output-end transmission bearing are limited to the sensor housing via bearing retaining rings. The output-end transmission bearing is limited to the elastic shaft via a fourth elastic retaining ring.

[0013] Preferably, a wired acquisition module and a wireless transmission module are provided between the inner positioning bushing and the outer positioning bushing. The wired acquisition module and the wireless transmission module are electrically connected, and the wireless transmission module and the wireless receiving module communicate wirelessly.

[0014] Preferably, the oscillation coil is fixedly installed on the inner wall of the sensor housing, and the inner positioning bushing, outer positioning bushing and resonant coil are all fixedly connected to the elastic shaft. The resonant coil generates an oscillation circuit by resonating with the elastic shaft relative to the oscillation coil when the elastic shaft rotates relative to the oscillation coil, and supplies power to the wired acquisition module and the wireless transmission module. The wired acquisition module performs real-time strain signal acquisition on the strain sensing change area of ​​the elastic shaft.

[0015] Preferably, the sensor housing and the two mounting boxes are fixedly connected by a sealing cover, the mounting box is movably connected to the contact ball, the bottom end of the ball head is inserted into the inner side of the middle of the ball mounting block, the ball head is rotatably connected to the ball mounting block, the ball head is connected to the transmission plate by a support spring, and the two ends of the ball mounting block are spaced at the same distance from the two pressure sensors.

[0016] Preferably, the plurality of resistor strips are arranged circumferentially relative to the axis of the mounting arc plate, the transmission plate is slidably connected to the plurality of mounting arc plates, both sides of the mounting arc plate are connected to the two positioning racks through inter-tooth meshing, and the mounting arc plate and the positioning seat are slidably connected through the two positioning racks.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention provides a wired acquisition module and a wireless transmission module between the inner and outer positioning bushings. When the resonant coil rotates relative to the starting coil through the elastic shaft, it generates an oscillation circuit and supplies power to the wired acquisition module and the wireless transmission module. The wired acquisition module collects strain signals in real time from the strain sensing change area of ​​the elastic shaft and transmits the monitoring data wirelessly to the wireless receiving module through the wireless transmission module. At the same time, the bottom end of the photoelectric speed sensor passes through the positioning groove of the lower plate and fits on the outside of the speed testing gear ring. When the elastic shaft drives the speed testing gear ring to rotate inside the photoelectric speed sensor, the photoelectric speed sensor can monitor the speed of the speed testing gear ring, thereby enabling wireless monitoring of the speed and dynamic torque of the elastic shaft in high-speed rotation.

[0019] 2. This invention generates axial runout when the elastic shaft rotates, which is transmitted to the contact balls via the input end transmission bearing. This causes adjacent contact balls to swing the ball mounting block outside the ball head post. Two pressure sensors monitor the swing of the ball mounting block, thereby detecting the axial runout of the elastic shaft. The ball head post, affected by the vibration of the ball mounting block, slides relative to multiple resistance bars along the radial direction of the mounting arc plate via a support spring. Changes in the resistance value of the resistance bars monitor the sliding amount of the transmission plate, thus detecting the axial runout frequency when the elastic shaft rotates. By adjusting the mounting position of the mounting arc plate relative to the two positioning racks, the elastic contraction of the support spring can be controlled, thereby adjusting the pressure of the ball mounting block on the contact balls, thus controlling the monitoring sensitivity of the axial runout monitoring mechanism. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the wireless receiving module of the present invention;

[0023] Figure 4 This is a schematic diagram of the installation structure of the axial runout monitoring mechanism of the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of the sensor housing of the present invention;

[0025] Figure 6 This is a schematic diagram of the axial runout monitoring mechanism of the present invention;

[0026] Figure 7 This is a cross-sectional structural diagram of the axial runout monitoring mechanism of the present invention;

[0027] Figure 8 This is an exploded structural diagram of the positioning seat of the present invention;

[0028] Figure 9 This is a schematic diagram of the installation structure of the resistor strip of the present invention.

[0029] In the diagram: 1. Sensor mounting mechanism; 101. Sensor top cover; 102. Sensor housing; 103. First bearing mounting hole; 104. Bearing retaining ring; 105. Lower plate positioning groove; 106. Second bearing mounting hole; 2. Transmission holding mechanism; 201. Elastic shaft; 202. First elastic snap ring; 203. Input end transmission bearing; 204. Second elastic snap ring; 205. Speed ​​testing gear ring; 206. Third elastic snap ring; 207. Inner positioning bushing; 208. Outer positioning bushing; 209. Resonant coil; 210. Oscillation coil; 211. Fourth elastic snap ring; 21 2. Output end transmission bearing; 3. Wireless receiving module; 301. Upper power connection board; 302. Lower power connection board; 303. Overlapping copper column; 304. Photoelectric speed sensor; 4. Axial runout monitoring mechanism; 401. Sealing cover; 402. Mounting box; 403. Contact ball; 404. Ball mounting block; 405. Pressure sensor; 406. Threaded mounting sleeve; 407. Connecting cross seat; 408. Ball head column; 409. Transmission plate; 410. Mounting arc plate; 411. Positioning seat; 412. Limiting corner block; 413. Positioning rack; 414. Resistance bar; 415. Support spring. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Please see Figure 1 and Figure 4The present invention provides an embodiment of a high-speed dynamic torque sensor based on wireless acquisition, processing and transmission signals, including a sensor mounting mechanism 1, a transmission holding mechanism 2 and an axial runout monitoring mechanism 4. The sensor mounting mechanism 1 includes a sensor housing 102, a sensor cover 101 fixedly mounted on the upper end of the sensor housing 102, and bearing retaining rings 104 fixedly mounted on the inner sides of both ends of the sensor housing 102. One side of one bearing retaining ring 104 is provided with a first bearing mounting hole 103, and one side of the other bearing retaining ring 104 is provided with a second bearing mounting hole 106. The upper end face of the sensor housing 102 is provided with a lower plate positioning groove 105. The sensor cover 101 and the sensor housing 102 are fixedly connected to facilitate the sealing and protection of the wireless receiving module 3.

[0032] Please see Figure 1 and Figure 2 A transmission holding mechanism 2 is installed inside the sensor mounting mechanism 1. The transmission holding mechanism 2 includes an elastic shaft 201, which is rotatably connected to the sensor housing 102. An inner positioning bushing 207 is fixedly installed on the outer side of the middle part of the elastic shaft 201. An outer positioning bushing 208 is rotatably connected to the outer side of the inner positioning bushing 207. A third elastic retaining ring 206 is installed at the front end of the inner positioning bushing 207. A speed testing gear ring 205 is installed on the front end face of the third elastic retaining ring 206. The front of the speed testing gear ring 205 is located outside the elastic shaft 201. A second elastic retaining ring 204 is installed on the side. An input end transmission bearing 203 is installed on the front end face of the second elastic retaining ring 204. A first elastic retaining ring 202 is installed on the front end face of the input end transmission bearing 203. The elastic shaft 201 coincides with the axis of the sensor housing 102. The input end transmission bearing 203 and the elastic shaft 201 are limited and connected by the first elastic retaining ring 202 and the second elastic retaining ring 204. The input end transmission bearing 203 and the output end transmission bearing 212 are positioned and installed by two first bearing mounting holes 103 and bearing retaining rings 104.

[0033] A resonant coil 209 is mounted on the rear end face of the outer positioning bushing 208, and an oscillation coil 210 is mounted on the rear end face of the resonant coil 209. A wired acquisition module and a wireless transmission module are provided between the inner positioning bushing 207 and the outer positioning bushing 208. The wired acquisition module and the wireless transmission module are electrically connected, and the wireless transmission module communicates wirelessly with the wireless receiving module 3. The oscillation coil 210 and the outer positioning bushing 208 are fixedly installed on the inner wall of the sensor housing 102. Both the inner positioning bushing 207 and the resonant coil 209 are fixedly connected to the elastic shaft 201. The oscillation coil 210 is fixedly installed on the inner wall of the sensor housing 102. The inner positioning bushing 207, the outer positioning bushing 208 and the resonant coil 209 are all fixedly connected to the elastic shaft 201. The resonant coil 209 generates an oscillation circuit by resonating with the elastic shaft 201 when it rotates relative to the oscillation coil 210, and supplies power to the wired acquisition module and the wireless transmission module. The wired acquisition module collects the strain signal of the strain sensing change area of ​​the elastic shaft 201 in real time and transmits the monitoring data wirelessly to the wireless receiving module 3 through the wireless transmission module.

[0034] A fourth elastic retaining ring 211 is installed on the rear end face of the starting coil 210. An output end transmission bearing 212 is installed on the rear end face of the fourth elastic retaining ring 211. The two ends of the elastic shaft 201 are rotatably connected to the sensor housing 102 through the input end transmission bearing 203 and the output end transmission bearing 212, respectively. The input end transmission bearing 203 and the output end transmission bearing 212 are both limited to the sensor housing 102 through the bearing retaining ring 104. The output end transmission bearing 212 is limited to the elastic shaft 201 through the fourth elastic retaining ring 211, so that the elastic shaft 201 maintains high-speed rotation under the support of the input end transmission bearing 203 and the output end transmission bearing 212.

[0035] Please see Figure 2 and Figure 3A wireless receiving module 3 is installed on the inner side of the upper end of the sensor mounting mechanism 1. The wireless receiving module 3 includes an upper power receiving plate 301 and a lower power receiving plate 302 installed below the upper power receiving plate 301. The upper power receiving plate 301 and the lower power receiving plate 302 are fixedly connected by multiple overlapping copper pillars 303. A photoelectric speed sensor 304 is fixedly installed on the lower end face of the lower power receiving plate 302. The lower power receiving plate 302 is inserted into the inner side of the lower plate positioning groove 105. The sensor housing 102 and the sensor cover 101 are fitted together on the outer side of the upper power receiving plate 301 and the lower power receiving plate 302. The upper electrical plate 301, the lower electrical plate 302, the photoelectric speed sensor 304, and multiple overlapping copper pillars 303 are electrically connected. The bottom end of the photoelectric speed sensor 304 passes through the positioning groove 105 of the lower plate and fits on the outer side of the upper end of the speed testing gear ring 205. When the elastic shaft 201 drives the speed testing gear ring 205 to rotate inside the photoelectric speed sensor 304, the photoelectric speed sensor 304 can monitor the speed of the speed testing gear ring 205, thereby enabling wireless monitoring of the speed and dynamic torque of the elastic shaft 201 in high-speed rotation.

[0036] Please see Figures 4 to 9 Axial runout monitoring mechanisms 4 are installed on both sides of the sensor mounting mechanism 1. The two axial runout monitoring mechanisms 4 are symmetrically installed relative to the sensor mounting mechanism 1. The axial runout monitoring mechanism 4 includes a sealing cover 401, which is fixedly connected to the sensor housing 102. A mounting box 402 is installed on one side of the sealing cover 401. A limiting corner block 412 is slidably connected to the inner side of the upper end of the mounting box 402. A positioning seat 411 is slidably connected to one side of the limiting corner block 412. Positioning racks 413 are installed on both sides of the positioning seat 411. An installation arc plate 410 is installed between the two positioning racks 413. A transmission plate 409 is installed on the lower end face of the installation arc plate 410. The transmission plate 409 and the installation arc plate 410 are connected. Multiple resistance bars 414 are installed between 0 and 0. The multiple resistance bars 414 are arranged in a circle relative to the axis of the mounting arc plate 410. The transmission plate 409 is slidably connected to the multiple mounting arc plates 410. Both sides of the mounting arc plate 410 are connected to the two positioning racks 413 through inter-tooth meshing. The mounting arc plate 410 and the positioning seat 411 are slidably connected through the two positioning racks 413. The sliding amount of the transmission plate 409 can be monitored by the change of resistance value on the resistance bars 414, and then the axial runout frequency when the elastic shaft 201 rotates can be detected. By adjusting the installation position of the mounting arc plate 410 relative to the two positioning racks 413, the monitoring sensitivity of the axial runout monitoring mechanism 4 can be controlled.

[0037] A support spring 415 is provided on the lower end face of the transmission plate 409. A ball head post 408 is installed on the inner side of the support spring 415. The bottom end of the ball head post 408 is inserted into the inner side of the middle part of the ball mounting block 404. The ball head post 408 and the ball mounting block 404 are rotatably connected. The ball head post 408 and the transmission plate 409 are connected through the support spring 415. A ball mounting block 404 is installed on the outer side of the bottom end of the ball head post 408. Contact balls 403 are installed between both ends of the ball mounting block 404 and the mounting box 402. The sensor housing 102 and the two mounting boxes 402 are fixedly connected through the sealing cover 401. The mounting box 402 is movably connected to the contact balls 403. When the elastic shaft 201 rotates, it generates axial runout and drives the contact balls 403 through the input end transmission bearing 203. Then, the two adjacent contact balls 403 drive the ball mounting block 404 to swing on the outer side of the ball head post 408.

[0038] Pressure monitoring units are installed on both sides of the ball head 408. The two pressure monitoring units are symmetrically installed relative to the ball head 408. Each pressure monitoring unit includes a connecting cross seat 407. A threaded mounting sleeve 406 is installed in the middle of the connecting cross seat 407. A pressure sensor 405 is fixedly installed on the inner side of the threaded mounting sleeve 406. The distance between the two ends of the ball mounting block 404 and the two pressure sensors 405 is the same. The threaded mounting sleeve 406 and the connecting cross seat 407 are connected by threads. The threaded mounting sleeve 406 and the pressure sensor 405 slide linearly back and forth along the center of the connecting cross seat 407. The two pressure sensors 405 can monitor the amount of oscillation of the ball mounting block 404, and thus detect the axial runout of the elastic shaft 201.

[0039] In use, when detecting torque, the input end transmission bearing 203, the speed test gear ring 205, the inner positioning bushing 207, and the output end transmission bearing 212 are installed sequentially from front to back on the outer side of the elastic shaft 201. The speed test gear ring 205 is limited and installed to the elastic shaft 201 by the third elastic snap ring 206. The elastic shaft 201 is inserted into the inner side of the sensor housing 102, so that the input end transmission bearing 203 and the output end transmission bearing 212 are positioned and installed through the two first bearing mounting holes 103 and the bearing retaining ring 104. Then, the sensor cover 101 and the sensor housing 102 are fixedly connected to facilitate the sealing and protection of the wireless receiving module 3.

[0040] When the power is turned on, the elastic shaft 201 is powered by inputting power to the front end, so that the elastic shaft 201 is kept rotating at high speed under the support of the input end transmission bearing 203 and the output end transmission bearing 212. A wired acquisition module and a wireless transmission module are provided between the inner positioning bushing 207 and the outer positioning bushing 208. The wired acquisition module and the wireless transmission module are electrically connected. The resonant coil 209 generates an oscillation circuit by resonating when the elastic shaft 201 rotates relative to the oscillation coil 210, and supplies power to the wired acquisition module and the wireless transmission module. The wired acquisition module collects the strain signal of the strain sensing change area of ​​the elastic shaft 201 in real time and transmits the monitoring data wirelessly to the wireless receiving module 3 through the wireless transmission module.

[0041] Meanwhile, the bottom end of the photoelectric speed sensor 304 passes through the positioning groove 105 of the lower plate and is fitted onto the outside of the speed testing gear ring 205. This allows the photoelectric speed sensor 304 to monitor the speed of the speed testing gear ring 205 when the elastic shaft 201 drives the speed testing gear ring 205 to rotate inside the photoelectric speed sensor 304. This enables wireless monitoring of the speed and dynamic torque of the elastic shaft 201 in high-speed rotation.

[0042] During the rotation of the elastic shaft 201, radial monitoring is performed by two symmetrically installed axial runout monitoring mechanisms 4. Specifically, the bottom end of the contact ball 403 penetrates the mounting box 402 and contacts the outer surface of the input end transmission bearing 203. When the elastic shaft 201 rotates, axial runout is generated and transmitted to the contact ball 403 through the input end transmission bearing 203. Then, two adjacent contact balls 403 drive the ball mounting block 404 to swing outside the ball head post 408. The distance between the two ends of the ball mounting block 404 and the two pressure sensors 405 is consistent. Then, the two pressure sensors 405 can monitor the swing of the ball mounting block 404, and thus detect the axial runout of the elastic shaft 201.

[0043] Meanwhile, the ball joint 408 and the transmission plate 409 are connected by a support spring 415. This allows the ball joint 408 to be affected by the vibration of the ball mounting block 404, which in turn drives the transmission plate 409 to slide radially relative to multiple resistance bars 414 along the mounting arc plate 410 via the support spring 415. By energizing the resistance bars 414 and the transmission plate 409, the sliding amount of the transmission plate 409 can be monitored by the change in resistance value on the resistance bars 414. This allows for the detection of the axial runout frequency when the elastic shaft 201 rotates. By adjusting the mounting position of the mounting arc plate 410 relative to the two positioning racks 413, the elastic contraction of the support spring 415 can be controlled. Consequently, the pressure of the ball mounting block 404 on the contact ball 403 can be adjusted, thereby controlling the monitoring sensitivity of the axial runout monitoring mechanism 4.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high rotational speed dynamic torque sensor based on wireless acquisition processing transmission signal, comprising a sensor mounting mechanism (1), a transmission retaining mechanism (2) and an axial runout monitoring mechanism (4), characterized in that: The inner side of the sensor mounting mechanism (1) is provided with a transmission retaining mechanism (2), the inner side of the upper end of the sensor mounting mechanism (1) is provided with a wireless receiving module (3), both sides of the sensor mounting mechanism (1) are provided with an axial jump monitoring mechanism (4), the two axial jump monitoring mechanisms (4) are symmetrically installed relative to the sensor mounting mechanism (1), the sensor mounting mechanism (1) comprises a sensor shell (102), and the upper end of the sensor shell (102) is fixedly provided with a sensor upper cover (101); The axial jump monitoring mechanism (4) comprises a sealing cover (401), the sealing cover (401) is fixedly connected with the sensor shell (102), one side of the sealing cover (401) is provided with a mounting box (402), the inner side of the upper end of the mounting box (402) is slidably connected with a limiting angle block (412), one side of the limiting angle block (412) is slidably connected with a positioning seat (411), both sides of the positioning seat (411) are provided with positioning racks (413), one mounting arc piece (410) is installed between the two positioning racks (413), the lower end surface of the mounting arc piece (410) is provided with a transmission piece (409), a plurality of resistance strips (414) are installed between the transmission piece (409) and the mounting arc piece (410), the lower end surface of the transmission piece (409) is provided with a supporting spring (415), the inner side of the supporting spring (415) is provided with a ball head column (408), both sides of the ball head column (408) are provided with pressure monitoring units, the outer side of the bottom end of the ball head column (408) is provided with a ball mounting block (404), and the ball mounting block (404) is provided with contact balls (403) between both ends and the mounting box (402).

2. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 1, characterized in that: The sensor mounting mechanism (1) further comprises a bearing check ring (104) fixedly connected with the inner side of both ends of the sensor shell (102), one side of one of the bearing check rings (104) is provided with a first bearing mounting hole (103), one side of the other bearing check ring (104) is provided with a second bearing mounting hole (106), and the upper end surface of the sensor shell (102) is provided with a lower plate positioning groove (105).

3. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 2, characterized in that: The transmission retaining mechanism (2) comprises a elastic shaft body (201), the elastic shaft body (201) is rotatably connected with the sensor shell (102), the outer side of the middle part of the elastic shaft body (201) is fixedly installed with an inner positioning bushing (207), the outer side of the inner positioning bushing (207) is rotatably connected with an outer positioning bushing (208), the front end of the inner positioning bushing (207) is installed with a third elastic clasp (206), the front end surface of the third elastic clasp (206) is installed with a rotating speed test gear ring (205), the front of the rotating speed test gear ring (205) is installed with a second elastic clasp (204) on the outer side of the elastic shaft body (201), the front end surface of the second elastic clasp (204) is installed with an input end transmission bearing (203), the front end surface of the input end transmission bearing (203) is installed with a first elastic clasp (202), the rear end surface of the outer positioning bushing (208) is installed with a resonant coil (209), the rear end surface of the resonant coil (209) is installed with a vibration coil (210), the rear end surface of the vibration coil (210) is installed with a fourth elastic clasp (211), and the rear end surface of the fourth elastic clasp (211) is installed with an output end transmission bearing (212).

4. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 3, characterized in that: The wireless receiving module (3) comprises an electricity receiving upper layer plate (301), an electricity receiving lower layer plate (302) is installed below the electricity receiving upper layer plate (301), the electricity receiving upper layer plate (301) and the electricity receiving lower layer plate (302) are fixedly connected through a plurality of lapping copper columns (303), an optoelectronic speed sensor (304) is fixedly installed on the lower end surface of the electricity receiving lower layer plate (302), the electricity receiving lower layer plate (302) is inserted into the inner side of the lower layer plate positioning groove (105), the sensor shell (102) and the sensor upper cover (101) are sleeved and installed on the outer sides of the electricity receiving upper layer plate (301) and the electricity receiving lower layer plate (302), the electricity receiving upper layer plate (301), the electricity receiving lower layer plate (302), the optoelectronic speed sensor (304) and the plurality of lapping copper columns (303) are electrically connected, and the bottom end of the optoelectronic speed sensor (304) penetrates through the lower layer plate positioning groove (105) and is sleeved on the outer side of the upper end of the rotating speed test gear ring (205).

5. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 4, characterized in that: The two pressure monitoring units are symmetrically installed relative to the ball head column (408), the pressure monitoring unit comprises a connecting cross seat (407), a threaded mounting sleeve (406) is installed in the middle part of the connecting cross seat (407), a pressure sensor (405) is fixedly installed on the inner side of the threaded mounting sleeve (406), the threaded mounting sleeve (406) is connected with the connecting cross seat (407) through threads, and the threaded mounting sleeve (406) and the pressure sensor (405) linearly reciprocate along the center of the connecting cross seat (407).

6. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 5, characterized in that: Both ends of the elastic shaft body (201) are rotatably connected with the sensor shell (102) through an input end transmission bearing (203) and an output end transmission bearing (212) respectively, the elastic shaft body (201) is coincident with the axis of the sensor shell (102), the input end transmission bearing (203) is limitingly connected with the elastic shaft body (201) through a first elastic clasp (202) and a second elastic clasp (204), the input end transmission bearing (203) and the output end transmission bearing (212) are limitingly connected with the sensor shell (102) through a bearing blocking ring (104), and the output end transmission bearing (212) is limitingly connected with the elastic shaft body (201) through a fourth elastic clasp (211).

7. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 6, characterized in that: The wired acquisition module and the wireless transmission module are arranged between the inner positioning bushing (207) and the outer positioning bushing (208), the wired acquisition module and the wireless transmission module are electrically connected, and the wireless transmission module and the wireless receiving module (3) are in wireless communication.

8. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 7, characterized in that: The vibration coil (210) is fixedly installed on the inner wall of the sensor shell (102), the inner positioning bushing (207), the outer positioning bushing (208) and the resonance coil (209) are fixedly connected with the elastic shaft body (201), the resonance coil (209) generates a vibration circuit and supplies power to the wired acquisition module and the wireless transmission module when the elastic shaft body (201) rotates relative to the vibration coil (210) and generates a resonance effect, and the wired acquisition module collects strain signals of the strain sensing change area of the elastic shaft body (201) in real time.

9. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 8, characterized in that: The sensor shell (102) and the two mounting boxes (402) are fixedly connected through sealing covers (401), the mounting box (402) is movably connected with the contact ball (403), the bottom end of the ball head column (408) is inserted into the inner side of the middle part of the ball mounting block (404), the ball head column (408) is rotatably connected with the ball mounting block (404), the ball head column (408) is connected with the transmission piece (409) through the supporting spring (415), and the two ends of the ball mounting block (404) are consistent with the spacing of the two pressure sensors (405).

10. The high rotational speed dynamic torque sensor based on wireless acquisition, processing and transmission of signals according to claim 9, characterized in that: The plurality of resistance strips (414) are arranged in a circle relative to the axis of the mounting arc piece (410), the transmission piece (409) is slidably connected with the plurality of mounting arc pieces (410), the two sides of the mounting arc piece (410) are connected with the two positioning racks (413) through intermeshing, and the mounting arc piece (410) is slidably connected with the positioning seat (411) through the two positioning racks (413).

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