Vehicle-mounted dynamic torque sensor based on CAN bus transmission

By designing an on-board dynamic torque sensor based on CAN bus transmission, the problems of inaccurate torque measurement and unstable signal at high speeds were solved, achieving stable signal transmission and wear monitoring in harsh environments, and improving the reliability and maintenance efficiency of the sensor.

CN223581231UActive Publication Date: 2025-11-21ZHEJIANG SOUTH-OCEAN SENSOR MFG CO LTD
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Patent Information

Application Number
CN202423242216.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-11-21
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing vehicle-mounted dynamic torque sensors cannot effectively test torque at high speeds, have low signal transmission stability, and are easily affected by electromagnetic pollution. The speed detection components wear out severely after prolonged use, making timely replacement and maintenance difficult.

Method used

The vehicle-mounted dynamic torque sensor design, based on CAN bus transmission, includes a housing assembly, an elastomer assembly, a wear monitoring assembly, and a wireless receiving module. It utilizes a high-precision bearing and dustproof plate structure to improve stability, achieves signal transmission through a CAN bus communication system, and uses the wear monitoring assembly to detect the wear of the rotating gear ring in real time.

Benefits of technology

At high speeds, the stability of the sensor and the reliability of signal transmission are improved, enabling timely monitoring and replacement of worn parts to avoid affecting speed detection, adapting to harsh environments, and reducing the impact of electromagnetic interference.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of strain sensors, in particular to a vehicle-mounted dynamic torque sensor based on CAN bus transmission, and solves the problems that the torque of transmission equipment cannot be tested and measured by the vehicle-mounted dynamic torque sensor under the condition of high rotating speed, the signal transmission stability is not high, the vehicle-mounted equipment has a large amount of electromagnetic pollution, and the cost is low. The problems that in the prior art, a sensor is required to have high anti-interference capacity, a rotating speed detection assembly is prone to being abraded after being used for a long time, the rotating speed detection assembly is difficult to continuously monitor and replace and maintain in the first time are solved, and the rotating speed detection assembly comprises a shell assembly, and a side baffle assembly is arranged on one side of the shell assembly; a wireless receiving module is arranged at the bottom end of the shell assembly, a bottom cover assembly is arranged at the bottom end of the wireless receiving module, and an elastic body assembly is arranged in the shell assembly. The operation stability of the sensor in a high rotating speed state is improved through low rotational inertia of the first bearing and the second bearing.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of strain sensors, in particular to a vehicle-mounted dynamic torque sensor based on CAN bus transmission. BACKGROUND

[0002] A torque sensor, also known as a moment sensor, a torsion sensor, a rotation torque sensor or a torque meter, is divided into dynamic and static two categories, wherein the dynamic torque sensor can also be called a rotation torque sensor, a rotation torque speed sensor, a non-contact torque sensor or a rotary torque sensor. The torque sensor is a detection of the perception of the torsional moment on various rotating or non-rotating mechanical parts. The torque sensor converts the physical change of the torsion into an accurate electrical signal. The torque sensor can be applied to the manufacture of viscosity meters, electric (pneumatic, hydraulic) torque wrenches, and has the advantages of high precision, fast frequency response, good reliability and long service life.

[0003] However, the existing vehicle-mounted dynamic torque sensor cannot test and measure the torque of the transmission equipment under high speed, the signal transmission stability is not high, the vehicle-mounted equipment has a large amount of electromagnetic pollution, the sensor is required to have high anti-interference ability, and the rotation speed detection assembly is prone to wear after long-time use, so that it is difficult to continuously monitor and replace and maintain in the first time. Therefore, it does not meet the existing demand, and for this purpose, a vehicle-mounted dynamic torque sensor based on CAN bus transmission is proposed. SUMMARY

[0004] The application aims to provide a vehicle-mounted dynamic torque sensor based on CAN bus transmission, so as to solve the problems of the vehicle-mounted dynamic torque sensor in the background art, such as the inability to test and measure the torque of the transmission equipment under high speed, the low signal transmission stability, the large amount of electromagnetic pollution of the vehicle-mounted equipment, the requirement of the sensor to have high anti-interference ability, and the wear of the rotation speed detection assembly after long-time use, which makes it difficult to continuously monitor and replace and maintain in the first time.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a vehicle-mounted dynamic torque sensor based on CAN bus transmission, comprising a shell assembly, a side baffle assembly is arranged on one side of the shell assembly, a wireless receiving module is arranged at the bottom end of the shell assembly, a bottom cover assembly is arranged at the bottom end of the wireless receiving module, an elastomer assembly is arranged in the shell assembly, wear monitoring assemblies are arranged at both ends of the elastomer assembly, a connector is arranged on one side of the shell assembly, and the connector is provided with a CAN bus communication system.

[0006] The elastic body assembly comprises an elastic body, a wired collection mechanism, a positioning ring, a gear ring baffle, a first positioning boss, a speed measuring gear ring, a positioning ring limiting column, a bearing positioning column and a resonant coil, two ends of the elastic body are divided into a power input end and a power output end, two wired collection mechanisms are movably installed on one side of the elastic body close to the power output end, the wired collection mechanism is provided with a positioning ring on one side, four threaded holes are arranged on one side of the positioning ring close to the wired collection mechanism, the wired collection mechanism and the positioning ring are connected in a threaded manner through the threaded holes, a wireless transmission module is connected in a threaded manner on the surface of the positioning ring through the threaded holes, a gear ring baffle is fixedly installed on one side of the positioning ring, a first positioning boss is fixedly installed on one side of the gear ring baffle, a positioning ring limiting column is arranged on one side of the first positioning boss, a bearing positioning column is fixedly installed on one side of the positioning ring limiting column, a bearing positioning column is fixedly installed on one side of the positioning ring close to the wired collection mechanism, the outer diameters of the positioning ring, the gear ring baffle, the first positioning boss, the positioning ring limiting column and the bearing positioning column gradually decrease, a speed measuring gear ring is pasted on one side of the gear ring baffle close to the first positioning boss through strong glue, and a resonant coil is pasted on one side of the first positioning boss close to the bearing positioning column through strong glue.

[0007] Preferably, the elastic body assembly further comprises a first bearing, a lead hole, a leveling groove, a threaded hole, a second bearing and a key groove, the two ends of the elastic body are respectively provided with the first bearing and the second bearing, the first bearing and the second bearing are both rotatably connected with the elastic body through the bearing positioning column, the outer surface of the positioning ring limiting column is provided with four threaded holes, the first positioning boss and the positioning ring limiting column are connected in a threaded manner through the threaded holes, the two ends of the elastic body are provided with key grooves, the outer surface of the first positioning boss is provided with two leveling grooves, and the inner surfaces of the leveling grooves are both provided with lead holes.

[0008] Preferably, the shell assembly comprises a bottom cover connecting hole, a module connecting hole, a wire slot, a vibrating coil positioning groove, a dust shield, a second positioning boss, a connector plug-in hole, a connector connecting hole, a side shield mounting hole, a side shield connecting hole and a shell, four end corner positions of the bottom end surface of the shell are provided with bottom cover connecting holes, the two sides of the bottom cover connecting hole are respectively provided as an input port and an output port, the input port position of the bottom cover connecting hole is fixedly installed with a dust shield, the outer surface of the dust shield is fixedly installed with a second positioning boss, the outer side of the second positioning boss is provided with a vibrating coil positioning groove, the top end of the shell is provided with a square mounting groove near the input port and the output port, the inside of the square mounting groove is provided with two module connecting holes, the surface of the square mounting groove near the output port is provided with a wire slot, the wire slot is connected with the vibrating coil positioning groove, one side of the inner wall of the shell is provided with a connector plug-in hole, the outer side of the connector plug-in hole is provided with four connector connecting holes, the position of the input port is provided with a side shield mounting hole, the outer side of the side shield mounting hole is provided with four side shield connecting holes, the inside of the vibrating coil positioning groove is provided with a vibrating coil.

[0009] Preferably, the wear monitoring assembly comprises a monitoring ring, a movable rod, a mounting base, a monitoring probe, a spring groove, a compression spring, an arc-shaped support table and a ball, two monitoring rings are movably installed at both end positions of the elastic body, the bottom end of the monitoring ring is fixedly installed with a mounting base, the inner wall of the monitoring ring is movably installed with two movable rods, the opposite side of the two monitoring rings is provided with four monitoring probes, the inner wall surface of the monitoring ring is provided with two spring grooves, the movable rod is slidably inserted into the inside of the spring groove, two compression springs are movably installed between the movable rod and the inside of the spring groove, the outer end surface of the movable rod is fixedly installed with an arc-shaped support table, the outer surface of the arc-shaped support table is movably installed with a plurality of balls, and the balls are attached to the outer surface of the elastic body.

[0010] Preferably, the side shield assembly comprises a shell mounting ring, a shell positioning hole, a shield mounting ring, a dust shield and a side shield, the side shield is movably installed on one side of the output port of the shell, the side of the side shield close to the shell is fixedly installed with a shell mounting ring, the inside of the shell mounting ring is fixedly installed with a shield mounting ring, the inside of the shield mounting ring is fixedly installed with a dust shield, and the outer surface of the side shield is provided with four shell positioning holes close to the outer side of the shell mounting ring.

[0011] Preferably, the bottom cover assembly comprises a conical countersunk hole, an assembly through hole and a shell bottom cover, the shell bottom cover is movably installed at the bottom end of the shell, the surface of the shell bottom cover is provided with four conical countersunk holes, and the outer side of the conical countersunk hole is provided with an assembly through hole.

[0012] Preferably, the wireless receiving module comprises a module positioning hole, an optical speed sensor and a mounting plate, the mounting plate is movably mounted on the bottom end surface of the shell, four end corners of the mounting plate are provided with module positioning holes, and the top end of the mounting plate is fixedly provided with the optical speed sensor.

[0013] Preferably, the shell bottom cover is connected with the shell by screwing into the interior of the conical countersunk hole and the bottom cover connecting hole, the mounting plate is connected with the shell by screwing into the interior of the module positioning hole and the module connecting hole, the shell mounting ring is movably inserted into the interior of the side baffle mounting hole, and the side baffle is threadedly connected with the shell by screwing into the interior of the shell positioning hole and the side baffle connecting hole.

[0014] Preferably, the surface of the positioning ring is provided with a notch, the middle of the positioning ring is provided with a wiring through hole, the wired acquisition mechanism, the resonant coil and the wireless transmitting module are connected through wires, the wires pass through the interior of the wiring through hole and are movably clamped into the interior of the notch, the wires movably pass through the interior of the lead wire hole, the first positioning boss is flatly attached to the resonant coil, the first bearing and the second bearing are high-precision bearings, the mounting base is movably inserted into the interior of the shell, the mounting base is in interference fit with the shell, and the resonant coil is clamped into the interior of the vibration coil.

[0015] Preferably, the connector plug-in hole is movably provided with a connector on the outside, and the connector is connected with the shell by screwing into the connector connecting hole.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The dustproof plate and the dust baffle cooperate to prevent dust from entering the interior of the shell when the device is in use, so that the device can be used in a relatively harsh environment, and the influence of the harsh environment on the use of the first bearing and the second bearing is avoided.

[0018] 2. The first bearing and the second bearing cooperate to improve the stability of the sensor in a high-speed state when the device is in use.

[0019] 3. The movable rod and the mounting base cooperate to enable the elastic body to be inserted into the monitoring ring when the elastic body assembly is installed, so that the elastic body can be supported by the arc-shaped support table, the elastic body is more stable in the shell, and the wear of the speed detecting gear ring can be observed in the first time through the monitoring probe, so that the influence of the wear of the speed detecting gear ring on the rotation speed detection of the device is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure diagram of the whole application;

[0021] Figure 2 Structure diagram of the whole application;

[0022] Figure 3 Structure diagram of the whole application;

[0023] Figure 4 Structure diagram of the whole application;

[0024] Figure 5 Structure diagram of the whole application;

[0025] Figure 6 Structure diagram of the whole application;

[0026] Figure 7 Structure diagram of the whole application;

[0027] Figure 8 Structure diagram of the whole application;

[0028] Figure: 1, side baffle assembly; 101, shell mounting ring; 102, shell positioning hole; 103, baffle mounting ring; 104, dustproof plate; 105, side baffle; 2, bottom cover assembly; 201, conical countersunk hole; 202, assembly through hole; 203, shell bottom cover; 3, wireless receiving module; 301, module positioning hole; 302, photoelectric speed sensor; 303, mounting plate; 4, elastomer assembly; 401, elastomer; 402, first bearing; 403, wired acquisition mechanism; 404, positioning ring; 405, gear ring baffle; 406, lead hole; 407, leveling groove; 408, first positioning boss; 409, speed measuring gear ring; 410, positioning ring limiting column; 411, threaded hole; 412, bearing positioning column; 413, resonant coil; 414, second bearing; 415, key groove; 5, shell assembly; 501, bottom cover connecting hole; 502, module connecting hole; 503, wire arranging groove; 504, vibration starting coil positioning groove; 505, dustproof plate; 506, second positioning boss; 507, connector plug-in hole; 508, connector connecting hole; 509, side baffle mounting hole; 510, side baffle connecting hole; 511, shell; 512, square mounting groove; 6, wear monitoring assembly; 601, monitoring ring; 602, movable rod; 603, mounting base; 604, monitoring probe; 605, spring groove; 606, compression spring; 607, arc-shaped support table; 608, ball. DETAILED DESCRIPTION

[0029] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0030] Please refer to Figures 1 to 8 An embodiment provided by the present application: a vehicle-mounted dynamic torque sensor based on CAN bus transmission, comprising a shell assembly 5, one side of the shell assembly 5 is provided with a side baffle assembly 1, the bottom end of the shell assembly 5 is provided with a wireless receiving module 3, the bottom end of the wireless receiving module 3 is provided with a bottom cover assembly 2, the inside of the shell assembly 5 is provided with an elastomer assembly 4, both ends of the elastomer assembly 4 are provided with wear monitoring assemblies 6, one side of the shell assembly 5 is provided with a connector, and the connector is loaded with a CAN bus communication system.

[0031] The elastomer assembly 4 comprises an elastomer 401, a wired collection mechanism 403, a positioning ring 404, a gear ring baffle 405, a first positioning boss 408, a speed measuring gear ring 409, a positioning ring limiting column 410, a bearing positioning column 412 and a resonant coil 413, both ends of the elastomer 401 are divided into a power input end and a power output end, two wired collection mechanisms 403 are movably installed on one side of the elastomer 401 close to the power output end, the positioning ring 404 is provided on one side of the wired collection mechanism 403, four threaded holes are provided on one side of the positioning ring 404 close to the wired collection mechanism 403, the wired collection mechanism 403 and the positioning ring 404 are threadedly connected by inserting bolts into the threaded holes, a wireless transmitting module is threadedly connected to the surface of the positioning ring 404 through the threaded holes, the gear ring baffle 405 is fixedly installed on one side of the positioning ring 404, the first positioning boss 408 is fixedly installed on one side of the gear ring baffle 405, the positioning ring limiting column 410 is provided on one side of the first positioning boss 408, the bearing positioning column 412 is fixedly installed on one side of the positioning ring limiting column 410, the bearing positioning column 412 is fixedly installed on one side of the positioning ring 404 close to the wired collection mechanism 403, the outer diameter sizes of the positioning ring 404, the gear ring baffle 405, the first positioning boss 408, the positioning ring limiting column 410 and the bearing positioning column 412 gradually decrease, the speed measuring gear ring 409 is pasted on one side of the gear ring baffle 405 close to the first positioning boss 408 through strong glue, and the resonant coil 413 is pasted on one side of the first positioning boss 408 close to the bearing positioning column 412 through strong glue.

[0032] The elastomer assembly 4 further comprises a first bearing 402, a lead hole 406, a leveling groove 407, a threaded hole 411, a second bearing 414 and a key groove 415, both ends of the elastomer 401 are respectively provided with the first bearing 402 and the second bearing 414, the first bearing 402 and the second bearing 414 are both rotationally connected with the elastomer 401 through the bearing positioning column 412, the outer surface of the positioning ring limiting column 410 is provided with four threaded holes 411, the first positioning boss 408 is threadedly connected with the positioning ring limiting column 410 by inserting bolts into the threaded holes 411, both ends of the elastomer 401 are provided with key grooves 415, the outer surface of the first positioning boss 408 is provided with two leveling grooves 407, and the inner surfaces of the leveling grooves 407 are both provided with lead holes 406.

[0033] Through cooperation of the first bearing 402 and the second bearing 414, when the device is used, the lower rotational inertia of the first bearing 402 and the second bearing 414 can improve the stability of the sensor operating at a high rotational speed.

[0034] The shell assembly 5 comprises a bottom cover connecting hole 501, a module connecting hole 502, a wire slot 503, a vibration coil positioning groove 504, a dust shield 505, a second positioning boss 506, a connector plug-in hole 507, a connector connecting hole 508, a side baffle mounting hole 509, a side baffle connecting hole 510 and a shell 511, the bottom end surface of the shell 511 is provided with a bottom cover connecting hole 501 at each of the four corner positions, the two sides of the bottom cover connecting hole 501 are respectively provided as an input port and an output port, the input port position of the bottom cover connecting hole 501 is fixedly installed with the dust shield 505, the outer surface of the dust shield 505 is fixedly installed with the second positioning boss 506, the outer side of the second positioning boss 506 is provided with the vibration coil positioning groove 504, the top end of the shell 511 is provided with a square mounting groove 512 near the input port and the output port, the square mounting groove 512 is provided with two module connecting holes 502 inside, the surface of the square mounting groove 512 near the output port is provided with the wire slot 503, the wire slot 503 is connected with the vibration coil positioning groove 504 in a penetrating manner, one side of the inner wall of the shell 511 is provided with the connector plug-in hole 507, the outer side of the connector plug-in hole 507 is provided with four connector connecting holes 508, the position of the input port is provided with the side baffle mounting hole 509, the outer side of the side baffle mounting hole 509 is provided with four side baffle connecting holes 510, and the vibration coil positioning groove 504 is provided with a vibration coil inside.

[0035] Through cooperation of the dustproof plate 104 and the dust shield 505, when the device is used, the dustproof plate 104 and the dust shield 505 can be used for dustproof and dustproof treatment of the inside of the shell 511, so that the device can be used in a relatively harsh environment, and the influence of the harsh environment on the use of the first bearing 402 and the second bearing 414 is avoided.

[0036] The wear monitoring assembly 6 comprises two monitoring rings 601, two movable rods 602, two mounting bases 603, four monitoring probes 604, two spring grooves 605, two compression springs 606, two arc-shaped support tables 607 and a plurality of rolling balls 608, the two monitoring rings 601 are movably arranged at the two ends of the elastic body 401, the bottom end of each monitoring ring 601 is fixedly provided with a mounting base 603, the inner wall of each monitoring ring 601 is movably provided with two movable rods 602, the opposite side of each monitoring ring 601 is provided with four monitoring probes 604, the inner wall surface of each monitoring ring 601 is provided with two spring grooves 605, the movable rod 602 is slidably inserted into the spring groove 605, the movable rod 602 and the spring groove 605 are movably provided with two compression springs 606, the outer end surface of the movable rod 602 is fixedly provided with an arc-shaped support table 607, and the outer surface of the arc-shaped support table 607 is movably provided with a plurality of rolling balls 608, and the rolling balls 608 are in close contact with the outer surface of the elastic body 401.

[0037] Through the cooperation of the movable rod 602 and the mounting base 603, when the elastic body assembly 4 is installed, the elastic body 401 can be inserted into the monitoring ring 601, so that the elastic body 401 can be supported by the arc-shaped support table 607, and the elastic body 401 is more stable in the shell 511, and the monitoring probe 604 can monitor the speed measuring gear ring 409, so that the wear of the speed measuring gear ring 409 can be observed in the first time when the speed measuring gear ring 409 is worn after a long time of use, thereby avoiding the influence of serious wear of the speed measuring gear ring 409 on the rotation speed detection of the device.

[0038] The rolling balls 608 reduce the friction between the arc-shaped support table 607 and the elastic body 401, and prevent the elastic body 401 from being seriously worn.

[0039] The side baffle assembly 1 comprises a shell mounting ring 101, a shell positioning hole 102, a baffle mounting ring 103, a dust plate 104 and a side baffle 105, the side baffle 105 is movably arranged at one side of the output port of the shell 511, the side baffle 105 is fixedly provided with the shell mounting ring 101 on the side close to the shell 511, the shell mounting ring 101 is fixedly provided with the baffle mounting ring 103 in the inside, the baffle mounting ring 103 is fixedly provided with the dust plate 104 in the inside, and the outer surface of the side baffle 105 is provided with four shell positioning holes 102 close to the outer side of the shell mounting ring 101.

[0040] The bottom cover assembly 2 comprises a conical countersunk hole 201, an assembly through hole 202 and a shell bottom cover 203, the shell bottom cover 203 is movably arranged at the bottom end of the shell 511, the surface of the shell bottom cover 203 is provided with four conical countersunk holes 201, and the outer side of each conical countersunk hole 201 is provided with an assembly through hole 202.

[0041] The wireless receiving module 3 comprises a module positioning hole 301, an optical speed sensor 302 and a mounting plate 303, the mounting plate 303 is movably mounted on the bottom end surface of the shell 511, the four end corners of the mounting plate 303 are provided with the module positioning hole 301, and the top end of the mounting plate 303 is fixedly provided with the optical speed sensor 302.

[0042] The shell bottom cover 203 is connected with the shell 511 by screwing into the interior of the conical countersunk hole 201 and the bottom cover connecting hole 501, the mounting plate 303 is connected with the shell 511 by screwing into the interior of the module positioning hole 301 and the module connecting hole 502, the shell mounting ring 101 is movably inserted into the interior of the side baffle mounting hole 509, and the side baffle 105 is screw-connected with the shell 511 by screwing into the interior of the shell positioning hole 102 and the side baffle connecting hole 510.

[0043] The surface of the positioning ring 404 is provided with a notch, and the middle of the positioning ring 404 is provided with a wire connecting hole, the wired collection mechanism 403, the resonant coil 413 and the wireless transmitting module are connected through wires, the wires pass through the interior of the wire connecting hole and are movably clamped into the interior of the notch, the wires movably pass through the interior of the lead hole 406, the first positioning boss 408 is flatly attached to the resonant coil 413, the first bearing 402 and the second bearing 414 are high-precision bearings, the mounting base 603 is movably inserted into the interior of the shell 511, the mounting base 603 is in interference fit with the shell 511, and the resonant coil 413 is clamped into the interior of the vibration coil.

[0044] The connector is movably mounted on the outside of the connector plug-in hole 507, and the connector is connected with the shell 511 by screwing into the connector connecting hole 508.

[0045] The vehicle-mounted dynamic torque sensor based on CAN bus transmission is used, first, the transmission device is connected with the power input end of the elastic body 401 through the shaft coupling, and the transmission device is powered, at this time, the elastic body assembly 4 rotates at high speed in the inside of the shell 511 through the first bearing 402 and the second bearing 414, and the wireless receiving module 3 starts to supply voltage to the vibration coil through the circuit modulation process, at this time, the oscillation circuit is formed between the vibration coil and the resonance coil 413, the resonance coil 413 on the positioning ring 404 receives the resonance voltage and starts to supply voltage to the wired collection mechanism 403 and the wireless transmitting module through the lead wire passing through the lead hole 406, then the wired collection mechanism 403 collects the torque strain signal of the torque sensing change area of the elastic body 401, and transmits the collected strain signal to the bottom cover assembly 2 through the wireless transmitting module, at the same time, the speed measuring gear 409 is in the central position of the photoelectric speed sensor 302 and rotates to block the photoelectric signal, then the strain signal and the speed signal are transmitted to the wireless receiving module 3 for signal packaging processing, conversion and modulation, and through the connector, the speed signal and the torque signal in the form of CAN signal are outputted, so that the signal transmission is efficient and stable

[0046] When the device is in use, the inside of the shell 511 can be dustproof and dustproof through the dustproof plate 104 and the dustproof plate 505, so that the device can be used in a more harsh environment, avoiding the influence of the harsh environment on the use of the first bearing 402 and the second bearing 414, and the lower rotational inertia of the first bearing 402 and the second bearing 414 can improve the stability of the sensor in the high speed state

[0047] When the device is installed with the elastic body assembly 4, the elastic body 401 can be inserted into the inside of the monitoring ring 601, so that the elastic body 401 can be supported by the arc-shaped support table 607, and the elastic body 401 is more stable in the inside of the shell 511, and the monitoring probe 604 can monitor the speed measuring gear 409, when the speed measuring gear 409 is worn after long time use, the wear of the speed measuring gear 409 can be observed by the monitoring probe 604 in the first time, so as to avoid that the wear of the speed measuring gear 409 seriously affects the rotation speed detection of the device.

[0048] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A vehicle mounted dynamic torque sensor based on CAN bus transmission comprising a housing assembly (5) characterized by: One side of the shell assembly (5) is provided with a side baffle assembly (1), the bottom end of the shell assembly (5) is provided with a wireless receiving module (3), the bottom end of the wireless receiving module (3) is provided with a bottom cover assembly (2), the inside of the shell assembly (5) is provided with an elastomer assembly (4), both ends of the elastomer assembly (4) are provided with wear monitoring assemblies (6), one side of the shell assembly (5) is provided with a connector, the connector is provided with a CAN bus communication system; The elastomer assembly (4) comprises an elastomer (401), a wired acquisition mechanism (403), a positioning ring (404), a gear ring baffle (405), a first positioning boss (408), a speed measuring gear ring (409), a positioning ring limiting column (410), a bearing positioning column (412) and a resonant coil (413), both ends of the elastomer (401) are divided into a power input end and a power output end, two wired acquisition mechanisms (403) are movably installed on one side of the elastomer (401) close to the power output end, a positioning ring (404) is arranged on one side of the wired acquisition mechanism (403), four threaded holes are arranged on one side of the positioning ring (404) close to the wired acquisition mechanism (403), the wired acquisition mechanism (403) and the positioning ring (404) are connected in a threaded manner through the threaded holes, a wireless transmitting module is threadedly connected to the surface of the positioning ring (404) through the threaded holes, a gear ring baffle (405) is fixedly installed on one side of the positioning ring (404), a first positioning boss (408) is fixedly installed on one side of the gear ring baffle (405), a positioning ring limiting column (410) is arranged on one side of the first positioning boss (408), a bearing positioning column (412) is fixedly installed on one side of the positioning ring limiting column (410), the bearing positioning column (412) is fixedly installed on one side of the positioning ring (404) close to the wired acquisition mechanism (403), the outer diameters of the positioning ring (404), the gear ring baffle (405), the first positioning boss (408), the positioning ring limiting column (410) and the bearing positioning column (412) gradually decrease, a speed measuring gear ring (409) is pasted on one side of the gear ring baffle (405) close to the first positioning boss (408) through strong glue, and a resonant coil (413) is pasted on one side of the first positioning boss (408) close to the bearing positioning column (412) through strong glue.

2. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 1, characterized in that: The elastomer assembly (4) further comprises a first bearing (402), a lead hole (406), a leveling groove (407), a threaded hole (411), a second bearing (414) and a key groove (415), both ends of the elastomer (401) are respectively provided with the first bearing (402) and the second bearing (414), the first bearing (402) and the second bearing (414) are both rotationally connected with the elastomer (401) through the bearing positioning column (412), the outer surface of the positioning ring limiting column (410) is provided with four threaded holes (411), the first positioning boss (408) and the positioning ring limiting column (410) are screwedly connected through the bolt inserted into the threaded hole (411), both ends of the elastomer (401) are provided with the key groove (415), the outer surface of the first positioning boss (408) is provided with two leveling grooves (407), and the inner surfaces of the leveling grooves (407) are all provided with lead holes (406).

3. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 2, characterized in that: The shell assembly (5) comprises a bottom cover connecting hole (501), a module connecting hole (502), a wire slot (503), a vibration coil positioning groove (504), a dust shield (505), a second positioning boss (506), a connector plug-in hole (507), a connector connecting hole (508), a side shield mounting hole (509), a side shield connecting hole (510) and a shell (511), four end corner positions of the bottom end surface of the shell (511) are all provided with the bottom cover connecting hole (501), the two sides of the bottom cover connecting hole (501) are provided with an input port and an output port respectively, the input port position of the bottom cover connecting hole (501) is fixedly installed with the dust shield (505), the outer surface of the dust shield (505) is fixedly installed with the second positioning boss (506), the outer side of the second positioning boss (506) is provided with the vibration coil positioning groove (504), the top end of the shell (511) is provided with a square mounting groove (512) near the input port and the output port, the square mounting groove (512) is internally provided with two module connecting holes (502), the surface of the square mounting groove (512) near the output port is provided with the wire slot (503), the wire slot (503) is in through connection with the vibration coil positioning groove (504), one side of the inner wall of the shell (511) is provided with the connector plug-in hole (507), the outer side of the connector plug-in hole (507) is provided with four connector connecting holes (508), the position of the input port is provided with the side shield mounting hole (509), the outer side of the side shield mounting hole (509) is provided with four side shield connecting holes (510), and the vibration coil positioning groove (504) is internally provided with a vibration coil.

4. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 3, characterized in that: The wear monitoring assembly (6) comprises monitoring rings (601), movable rods (602), mounting bases (603), monitoring probes (604), spring grooves (605), compression springs (606), arc-shaped support tables (607) and balls (608), two monitoring rings (601) are movably installed at the positions of the two ends of the elastic body (401) respectively, the bottom end of each monitoring ring (601) is fixedly installed with a mounting base (603), the inner wall of each monitoring ring (601) is movably installed with two movable rods (602), the opposite side of each monitoring ring (601) is provided with four monitoring probes (604), the inner wall surface of each monitoring ring (601) is provided with two spring grooves (605), the movable rod (602) is slidably inserted into the inside of the spring groove (605), two compression springs (606) are movably installed between the movable rod (602) and the inside of the spring groove (605), the outer end surface of the movable rod (602) is fixedly installed with an arc-shaped support table (607), the outer surface of the arc-shaped support table (607) is movably installed with a plurality of balls (608), and the balls (608) are attached to the outer surface of the elastic body (401).

5. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 4, characterized in that: The side baffle assembly (1) comprises a shell mounting ring (101), a shell positioning hole (102), a baffle mounting ring (103), a dust plate (104) and a side baffle (105), the side baffle (105) is movably installed on one side of the output port of the shell (511), the side baffle (105) is fixedly installed with a shell mounting ring (101) on the side close to the shell (511), the shell mounting ring (101) is fixedly installed with a baffle mounting ring (103) in the inside, the baffle mounting ring (103) is fixedly installed with a dust plate (104) in the inside, and four shell positioning holes (102) are arranged on the outer side of the shell mounting ring (101) and close to the outer surface of the side baffle (105).

6. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 5, characterized in that: The bottom cover assembly (2) comprises a conical countersunk hole (201), an assembly through hole (202) and a shell bottom cover (203), the shell bottom cover (203) is movably installed at the bottom end of the shell (511), the surface of the shell bottom cover (203) is provided with four conical countersunk holes (201), and the outer side of each conical countersunk hole (201) is provided with an assembly through hole (202).

7. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 6, characterized in that: The wireless receiving module (3) comprises a module positioning hole (301), an optical speed sensor (302) and a mounting plate (303), the mounting plate (303) is movably installed on the bottom end surface of the shell (511), the four corner angles of the mounting plate (303) are provided with module positioning holes (301), and the top end of the mounting plate (303) is fixedly installed with an optical speed sensor (302).

8. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 7, characterized in that: The shell bottom cover (203) is connected with the shell (511) by screwing into the inside of the conical countersunk hole (201) and the bottom cover connecting hole (501), the mounting plate (303) is connected with the shell (511) by screwing into the inside of the module positioning hole (301) and the module connecting hole (502), the shell mounting ring (101) is movably inserted into the inside of the side baffle mounting hole (509), and the side baffle (105) is screwedly connected with the shell (511) by screwing into the inside of the shell positioning hole (102) and the side baffle connecting hole (510).

9. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 8, characterized in that: The surface of the positioning ring (404) is provided with a notch, the middle of the positioning ring (404) is provided with a wiring through hole, the wired collection mechanism (403), the resonant coil (413) and the wireless transmission module are connected through wires, the wires penetrate the inside of the wiring through hole and are movably clamped into the inside of the notch, the wires movably penetrate the inside of the lead hole (406), the first positioning boss (408) is attached to the resonant coil (413), the first bearing (402) and the second bearing (414) are high-precision bearings, the mounting base (603) is movably inserted into the inside of the shell (511), the mounting base (603) is in interference fit with the shell (511), and the resonant coil (413) is clamped into the inside of the vibration coil.

10. The vehicle-mounted dynamic torque sensor based on CAN bus transmission according to claim 9, characterized in that: The outside of the connector plug hole (507) movably has a connector mounted thereon, and the connector is connected with the shell (511) by screwing into the connector connecting hole (508).