TW201250217A - Torque sensor and method thereof - Google Patents

Abstract

The invention relates to a torque sensor and a method thereof. The torque sensor includes a pipe and a rotation shaft. The pipe is penetrated by the rotation shaft and includes at least two ball bearings between the two opposite sides and the rotation shaft. The torque sensor further includes a changeable signal element, a transverse moving device, a signal line or a wireless transmission device and an insulated base. The changeable signal element is disposed in the pipe, penetrated by the rotation shaft and contacted with the transverse moving device. The transverse moving device is disposed adjacent to the changeable signal element in the pipe, penetrated and driven by the rotation shaft and contacted with the changeable signal element. A sleeve bearing is disposed between the transverse moving device and the rotation shaft. The signal line or the wireless transmission device forms a signal output loop with the changeable signal element and the transverse moving device, or the whole vehicular frame. The insulated base is disposed at two sides of the changeable signal element and the transverse moving device to insulate the pipe for forming the signal output loop. A crankshaft is disposed at two ends of the rotation shaft to calculate torque value and consumed energy, initiate motor, start a motor and adjust the outputted torque of the motor.

Description

201250217 VI. Description of the Invention: [Technical Field] The present invention relates to a torsion sensor, which is mainly for sensing the magnitude of the torsion force when a rotating shaft is driven to rotate.

[Prior Art] I

[0002] According to the conventional torque sensing mechanism, it is often necessary to use a complex planetary bevel gear set to generate a differential effect, and then convert the relative angular displacement of the differential into a sensed value of the torque, and the above-described torque sensing mechanism For example, the Republic of China new patent No. 092205249 (bicycle torque detecting device) is a planetary gear unit with a displacement measuring component. When the gear ring of the planetary gear unit is subjected to a large torque, it can be shaken. The rod generates a slight oscillation and causes a relative displacement between the magnetic unit and the displacement measuring component, and the relative displacement generated by the displacement measuring component causes the sensing end of the displacement measuring component to induce an electromotive force, and the electromotive force system It can be used as an inductive control signal to further control the signal to start the power for electric drive purposes. The above-mentioned planetary bevel gear set mechanism is not cheap, and requires a lot of transmission parts to form a rather complicated mechanism, such as China. The invention of the invention patent No. 881 14867 (the torque detector for bicycles and the crankshaft coupling portion for bicycles) Although this torque detection function has been integrated into the five-way shaft related mechanism, this creation requires four sets of pressure detectors to sense the amount of torque generated when the bicycle pedal is stepped on, and the related components are processed with precision and complexity. Moreover, there is still room for improvement in the assembly process. [Summary of the Invention] 100120815 Form No. A0101 Page 3 / Total 32 Pages 1002035202-0 201250217 [0003] (To solve the technical problem) Therefore, if a torque sensing device with a simple structure can be provided In addition to greatly reducing the production cost of the power-assisted electric vehicle, it can also reduce the difficulty of the assembly process, and should be the best solution in line with the current industry. (Technical means to solve the problem) Accordingly, the main purpose of the present invention It is a torsion sensor that provides a simplified structure. In view of this, the present inventors have invented a torsion sensor according to the concept of a long-term torsion sensor, which comprises: a tube body and a rotating shaft, a through hole is radially penetrated therearound, and The pipe body is penetrated by the rotating shaft, and at least two ball bearings are disposed between the two sides of the pipe body and the rotating shaft; a variable signal component is installed in the pipe body and is penetrated and traversed by the rotating shaft Pressing; a traverse device is mounted on the side of the variable signal member inside the pipe body, and is driven by the rotating shaft and driven by the rotating shaft to press against the variable signal member, and the traverse device and the rotating shaft Between the bushing bearing (also known as DU bearing); a signal line or wireless signal transmitting device, and the above-mentioned variable signal device and traverse device (or even the entire frame) constitute a signal output circuit; and an insulation The socket is mounted on the two sides of the variable signal component and the traverse device, thereby blocking the pipe body to form a signal output circuit; the pipe body described above has a through hole radially extending around the pipe body, and the pipe body There is a horizontal groove around, and the horizontal direction The groove and the through hole are formed in a vertical shape; and one end of the pipe body is provided with a cover body; one end of the pipe body is provided with a cover body; and the variable signal member and the traverse device are arranged between the above Thrust bearing; 100120815 Form No. A0101 Page 4 / Total 32 pages 1002035202-0 201250217 The traverse device described above is further provided with an active member and a passive member, and between the active member and the passive member. At least the group of slopes; the traverse device described above is further provided with a __ active member and a passive member, and at least a group (four) and a ball are disposed between the active member and the face member; An active member and a passive member are disposed, and at least a set of protrusions and cam grooves are disposed between the active member and the passive member; the variable signal member described above is placed in the insulating seat;

A terminal ring with a conducting function is disposed between the variable signal member and the insulating socket, and the terminal ring is connected to the signal line. The invention also relates to a torque sensing method, comprising the steps of: (a) a through hole running through a pipe body in a radial direction, and the pipe body is penetrated by a rotating shaft and between the two sides of the pipe body and the rotating shaft Having at least two ball bearings; (b) sequentially mounting an insulating socket, a variable signal member, a traverse device, a lining according to the first, fifth, sixth or seventh aspect of the pipe body a set of bearings, both of which are penetrated by the aforementioned shaft; (c) a signal line or wireless vanadium emitting device' and the aforementioned variable signal component and traverse device output circuit; (d) the traverse device Driven by the rotating shaft, so that the variable signal device is laterally squeezed, so that the variable signal device has the effect of having a wheel-out variable and signal; (e) by the signal line or the wireless signal transmitting device According to the measured or used torque signal value of the shaft. The invention can also be another aspect of the torsion sensor, which comprises a tube body and a rotating shaft, which are penetrated by the rotating shaft, and at least two ball bearings are arranged between the two sides of the tube body and the rotating shaft. a toothed disc rotating shaft is mounted on one side of the inner side of the technical body, and is driven by the rotating shaft and driven by the rotating sleeve. A plurality of strain gauges are mounted on the rotating shaft of the toothed disc and are connected with the signal Line or no 100120815 line signal transmitting device for electrical connection; and a signal line or wireless air number publication number A0101 page 5 / total 32 pages 10 Qing 35202-0 201250217 and the output device, and the above multiple strains Standard electrical connection, strain gauge signal. (Compared with the effects of the prior art) It is to be understood from the above description that the present invention achieves the following effects compared to the prior art: The present invention utilizes a traverse device and a variable signal member inside the tube body, and the traverse The device (ie, the frame) and the variable signal component are respectively connected to the signal line to form a signal output circuit; and the traverse device is driven by the rotating shaft, so that the traverse device is laterally pressed with the variable signal component located beside it to enable The various signals forming the signal output circuit are used to calculate the torque value and energy consumption of the rotating shaft, and to start the motor, adjust the torque output of the motor, etc., and also apply a plurality of strain gauges on the rotating shaft of the toothed disc, and the signal line or wireless signal The transmitting device is electrically connected, so that the strain gauge can be used to sense the change of the torque value of the rotating shaft to output the signal by wire or wirelessly, and the torque value and the energy consumption of the rotating shaft can be calculated, and the function of starting the motor and adjusting the torque output of the motor can also be achieved. . [Embodiment] In order to achieve the above object of the present invention, the technical means employed, and the effects thereof, the present invention will be described with reference to a preferred embodiment of the preferred embodiment and four traverse devices 4. First, as shown in FIGS. 1 to 3 and 9, the present invention relates to a five-way shaft A including a torsion sensor, which is attached to a five-way tube 71 of a bicycle frame 7 ( The Bottom Bracket includes: a tube body 1, a rotating shaft 2, a variable signal member 3, a traverse device 4, a signal line 5, and an insulating socket 52; wherein the tube body 1 is hollow tubular And the shaft 2 is penetrated, and in the tube 100120815 Form No. A0101 Page 6 / Total 32 Page 1002035202-0 201250217 Two ball bearings 6, 60 are disposed between the two sides of the body 1 and the rotating shaft 2; The whole body includes a body 10 and a cover body, and a first chamber 101 and a second chamber 102 are disposed inside the body 1 , and the internal thread 112 of the cover 11 is screwed to the tube. An external thread 106 is provided at one end of the body 1 of the body 1; a flange 111, 103 is provided on each of the outer ends of the body 11 and the body 1', and the flange 1〇3 of the body 1〇 is an octagonal head. And a through hole 104 is radially penetrated around the body 10 and a horizontal groove 105 is provided. The horizontal groove 1〇5 and the through hole 1〇4 are perpendicular to each other. Like;

100120815 The rotating shaft 2 is formed into a round rod shape and has a square socket end 21 at each of its two ends. Further, two rotating grooves 22 are formed on the surface of the round rod body adjacent to the square socket end 21, and A slot portion 24 is disposed at a middle portion of the round rod body; the variable signal member 3 may be a conductive rubber (Piductive RUbber), a piezoelectric (Piez〇electricity) material or a piezoresistive material, and the variable signal member 3 is Different signals are output during the extrusion process; if the variable signal component 3 is a conductive adhesive, it is a ring-shaped cone and is added with rubber as a main material - such as carbon black or graphite, graphite fiber, metal powder a conductive filler such as a conductive member; therefore, the side of the variable signal member 3 must be cracked in the insulating socket 52 to block the contact between the tubular body 1 and the variable signal member 3, and then Installed between the tubular body 丨 and the rotating shaft 2' and the other side of the variable signal member 3 is pressed against the thrust bearing 61 by the thrust bearing 61, and the traverse device 4, the signal line 5 and the entire vehicle The frame 7 constitutes a signal wheel circuit; and the variable signal member 3 has to be laterally pressed as the bearing shaft 2 is subjected to a large torque J. In order to output the characteristics of the variable signal; if it is a piezoelectric electrical material, it is a material that exchanges mechanical energy and electrical energy, and the extrusion process towel will lose the same voltage value. Please refer to Fig. 2 and Fig. 4 The traverse device 4 includes a 1002035202-0 form number A0101 S 7 pages/32 pages total 201250217

The driving member 41 and a passive member 42 are mounted together on the side of the thrust bearing 61 inside the tubular body 1 and the traverse device 4 is hollow and is penetrated by the rotating shaft 2, and the flange 421 of the passive member 42 Exposed to an outer side of the pipe body 1, and a bushing bearing 62 (also referred to as a DU bearing) is disposed between the passive member 42 and the rotating shaft 2; wherein the driving member 41 is provided with a bolt hole 411 to make the driving member 41 The pin groove portion 24' disposed on the rotating shaft 2 causes the driving member 41 and the rotating shaft 2 to be linked together, and indirectly drives the passive member 42. Referring to Fig. 5, the active member 41 and the passive member 42 are disposed. There are inclined faces 412, 422. However, only the active member 41 can be traversed in the assembly of the traverse device 4, so the active member 41 has both the rotating and traversing movements' and the active member 41 can be traversed completely depending on the torque of the rotating shaft 2 When the friction between the driving member 41 and the passive member 42 and the friction between the passive member 42 and the rotating shaft 2, the sliding surfaces 412 and 422 of the driving member 41 and the passive member 42 are relatively slid, thereby causing the driving member 41 to traverse. And squeezing the thrust bearing 61;

The active member 41 of the traverse device is moved by the relative sliding of the two inclined surfaces 412 and 422. The active member 41 and the passive member 42 are respectively provided with a set of external threads 422a and internal threads 412a, as shown in FIG. The driving member 41 is provided with a bolt hole 411 and an internally threaded hole 412a. The bolt hole 411 is formed in the bolt groove portion 24 of the rotating shaft 2, so that the rotating shaft 2 and the driving member 21 rotate together, and the passive member 42 In addition to the original flange 421, corresponding to the female screw hole 412a, the external thread 422a' is inserted through the female screw hole 412a and the external thread 422a, so that the active member 41 can be traversed; The driving member 41 and the passive member 42 are slid in the manner that the driving member 41 is provided with a bolt hole 411 and at least one cam groove 412c. The bolt hole 411 is coupled to the bolt groove portion 24 of the rotating shaft 2 to cause the rotating shaft 2 and The active member 21 rotates in conjunction with each other' and the passive member 42 is provided with a uniform through hole 422c. Another convex 100120815 is used. Form No. A0101 Page 8 / Total 32 pages 1002035202-0 201250217

Ο 100120815 column 44 and its front end respectively penetrates the cam groove 412c of the driving member and the through hole 422c of the passive member 42, and the protruding post 44 is fixed to the passive member 42 and protrudes to the passive member 42 and is embedded in the cam groove 412c. The manner in which the protrusions 44 and the cam grooves 412 are matched can also cause the active member 41 to traverse; as shown in FIG. 8, the manner in which the active member 41 and the passive member 42 slide can also be set for the active member 41. There is a bolt hole 411 and three arcuate grooves 412b at the end surface thereof, wherein the bolt hole 411 is assembled on the bolt groove portion 24 of the rotating shaft 2, so that the rotating shaft 2 and the driving member 21 rotate together, and the rotating shaft 2 The depth of the groove 412b is different, that is, the bottom surface of the groove 412b has an oblique curved surface, and the groove 422b of the passive member 42 corresponding to the groove 412b is also disposed in the same manner, and then in each of the two grooves 412b, A ball 43 is further disposed between the 422b, and the groove 412b of the driving member 41 is rotated through the rotating shaft 2. When the ball 43 is rolled to the shallow portion of the grooves 412b and 422b, the driving member 41 can be traversed. The driving member 41 is pushed to squeeze the thrust bearing 61; as shown in Fig. 2, the signal wire 5 is inserted into the tube The through hole 1〇4 of the 1 and the through hole of the insulating socket 52 form a signal output circuit with the variable signal component 3 and the traverse device 4 (or even the entire frame 7); in particular, the signal line 5 A terminal ring 51 is connected to one end, and the terminal ring 51 is disposed between the variable signal component 3 and the insulating socket 52 and is in contact with each other to output a signal through the signal line 5; The wireless signal transmitting device 50 can also be used in the present invention. The wireless signal transmitting device 50 is a circuit module and is disposed in the first chamber 101' of the pipe body 1 and the variable signal device 3 and the signal line. The terminal ring 51 of the 5 is electrically connected to transmit a signal through the wireless signal transmitting device 50. The insulating socket 52 is mounted on one side of the variable signal member 3, wherein the insulating socket 52 is provided with a variable The signal member 3 is configured to block the tube body 1 form form number A0101 page 9 / 32 pages 1002035202-0 201250217 into a signal output circuit ' and the insulating socket 52 is provided with a recess corresponding to the terminal ring 51 of the signal line 5 a slot for the terminal ring 51 to be inserted; see Figure 2, Figure 2a and Figure 9, borrow The second housing 1 2 of the body 10 of the tubular body 1 is accommodated with an insulating socket 5, a variable signal member 3, a thrust bearing 61, an active member 41, a follower member 42, and a ball. The carrier 6 (in the case of a wireless output signal, the wireless signal transmitting device 5 is disposed in the first chamber 101) and then penetrated by the rotating shaft 2; and a ball bearing is disposed on the non-flange end of the body 1〇, the ball The bearing is fastened to the C-shaped buckle groove 22 of the rotating shaft 2 through the two C-shaped buckles 62, and the ball bearing is positioned on the rotating shaft 2, and then the cover body 丨丨, that is, the internal thread 112 provided by the cover body u is placed. Screwed on the external thread 1〇6 of the body 10, and then a hexagonal nut 26 and a slip washer are screwed to the side end faces of the rotating shaft 2 and the cover u, so that the assembly can be completed with the torque of the present invention. The five-way shaft of the bicycle (commonly known as the bb axis). However, if the five-way shaft A containing the torque sensor of the present invention is to be mounted on the five-way tube 71 of the bicycle frame 7, the cover body u must be disassembled first, and then the body of the tube body 1 and its body When the internal component, the 2 and the ball bearing 6 are inserted into the five-way pipe 71, and then the cover u is locked, the five-way shaft A containing the torque sensor is mounted on the frame 7 of the frame 7 The inside of the pipe 71 and the flanges 111, 1〇3 of the pipe body 1 will be exposed on the two-end side of the five-way pipe (four) of the frame 7; finally, the toothed disk of the bicycle is placed on the passive part of the five-way _a of the base The convex edge and the edge 1 H of the 41 are respectively assembled on the square socket end 2 of the two ends of the rotating shaft 2 to make the rotating shaft 2 'moving through the footstep of the user's footsteps; The material of the invention can also be applied to the five-way tube 7G1 of the sports equipment 70, as shown in Fig. 1. 100120815 However, the torque sensing principle of the form number A0101 of the present invention is that the signal line 5 penetrates into the pipe body j. Page 10/32 pages 1002035202-0 201250217

100120815 The through hole 104 and the insulating socket 52 are through holes and form a signal output circuit, or the wireless signal transmitting module 50 and the variable signal component, with the aforementioned variable signal component 3 and the traverse device 4 (or even the entire frame 7). 3 and the traverse device 4 (or even the entire frame Ό constitutes a signal output circuit, and the variable signal device 3 can be regarded as an output variable signal. When the user steps on the two pedals of the bicycle, the rotary shaft 2 directly drives the horizontal The active member 41 of the shifting device 4, the active member 41 must rotate faster than the passive member 42, that is, the torque of the rotating shaft 2 is greater than the friction between the active member 41 and the passive member 42 and the friction between the passive member 42 and the rotating shaft 2. When the driving member 41 and the slanting surfaces 412 and 422 of the passive member 42 generate a reaction force to linearly move the driving member 41, the thrust bearing 61 is pressed and the variable signal member 3 is laterally pressed. Moreover, the greater the force applied by the variable signal member 3, the greater the torque experienced by the rotating shaft 2, so the principle can be applied to control the timing of the opening and closing of the motor assist of the Eletric Bikes; Can use this principle to change the power supply to the motor The flow size 'is to control the output of the motor, thereby improving the maneuverability of the torque output of the motor. For example, the size of the force of the user of the moped can be used to change the amount of compression of the variable signal member 3, and the amount of compression is large. When the output of the control voltage or current value becomes larger, the output of the motor becomes larger, so that the moped is suitable for driving the climbing section, and the appropriate motor assist is provided at the right time. When the variable amount of the variable signal member 3 is small or constant, the voltage is Or the current value is a general voltage or current value output, so that the motor output is normal or no force, so that the moped is suitable for driving on a flat road section. In the same case, the invention is also used for sports equipment as shown in Fig. 10. Referring to FIG. 11 , in combination with the above, the present invention may also define the following method: (a) a through hole penetrating in a radial direction of the pipe body, and the pipe body is penetrated by a rotating shaft and is in the pipe body Between the two sides and the rotating shaft, at least form number A0101, page 1 / total 32 pages 1002035202-0 201250217 two ball bearings; (b) an insulating socket, a variable inside the tube body Signal, The traverse device, a bushing bearing according to item 5, 6 or 7 of the specification, and both of which are penetrated by the aforementioned rotating shaft; (c) a signal line or a wireless signal transmitting device, and the aforementioned variable The signal component and the traverse device form a signal output circuit; (d) the traverse device is driven by the rotating shaft, thereby laterally squeezing the variable signal component, so that the variable signal component has the effect of outputting a variable signal; (e) by means of the signal line or the wireless signal transmitting device output signal, according to which the shaft torque value signal is measured or used. Referring to Figure 12, the user of the present invention uses a riding tool or a moving device. Rotating the rotating shaft 2 on the toothed disc or the rotating wheel in a stepwise manner, thereby interlocking the driving member 41 of the traverse device 4, due to the inclined surface between the driving member 41 and the passive member 42, the external thread & internal thread, The reaction force generated by the ball & groove, cam & the column, according to the side pressure variable signal device 3, the torque signal generated by the variable signal device 3 is transmitted through the wire or the heart ^ infrared, radio, etc. Output this signal to the motor, riding tool Or the display panel of the sports equipment, personal computer, smart phone, etc., according to the control of the motor on and off, the size control of the motor output, and the display of the torque value and the calorific value. Please refer to FIG. 13 and FIG. η for another possible embodiment of the present invention, which includes: a tube body 1 and a rotating shaft 2, which are penetrated by the rotating shaft 2 and are in the tube body 1. Between the two sides and the rotating shaft 2, at least two ball bearings 6 and 30 are provided; the sprocket rotating shaft 8 is disposed on one side of the inner portion of the tubular body, and is penetrated by the rotating shaft 2 and the rotating shaft 2 is Driving; a plurality of strain gauges 9 are mounted on the spur shaft 8 and electrically connected to the signal line 5 or the wireless signal transmitting device 50; and a signal line 5 or a wireless signal transmitting device 5 〇 The plurality of strain gauges 9 are electrically connected, and the output strain gauge 9 is 100120815 Form No. A0101 Page 12 / 32 100 10 Coffee 35202-0 201250217 Signal; with all the above components, the strain gauge 9 senses the shaft 2 The torque value is changed by wired or RFID, infrared, radio, etc., and the signal is output to the display panel of the motor, riding tool or sports equipment, personal computer, smart phone, etc., according to which the motor is separately controlled. And off, the size control of the motor output, and the torque value, Display heat consumption values. BRIEF DESCRIPTION OF THE DRAWINGS [0005] Fig. 1 is an external view of a five-way rotating shaft including a torque sensor according to a preferred embodiment of the present invention. Fig. 2 is a cross-sectional view showing a five-way rotating shaft of a torque sensor according to a preferred embodiment of the present invention. Figure 2a is a cross-sectional view of a five-way rotating shaft including a wireless torque sensor in accordance with a preferred embodiment of the present invention. Figure 3 is an exploded view of a five-way shaft containing a torque sensor in accordance with a preferred embodiment of the present invention. Fig. 4 is a perspective view showing the three-dimensional combination of the traverse device of the torque sensor of the preferred embodiment of the present invention. Fig. 5 is a schematic view showing the operation of the traverse device of Fig. 4. Figure 6 is an exploded view of an externally threaded and internally threaded traverse device of another torque sensor embodiment of the present invention. Figure 7 is an exploded view of the yoke and cam groove traverse device of another torque sensor embodiment of the present invention. Figure 8 is an exploded view of a grooved, ball-type traverse device of another torque sensor embodiment of the present invention. Figure 9 is a view of the torque sensor applied to the bicycle frame of the present invention 100120815 Form No. A0101 Page 13 / Total 32 pages 1002035202-0 201250217 The torque sensor of the present invention is applied to the sports equipment frame Figure 10: Sample image. Figure 11 is a flow chart of the method of the present invention. Figure 12 is a block diagram of the circuit of the present invention. Figure 13 is a partial cross-sectional view showing a possible embodiment of the present invention. Figure 14 is a block diagram of a circuit of a possible embodiment of the present invention. [Major component symbol description] Five-way shaft A pipe body 1 body 10 first chamber 101 second chamber 102 flange 103 through hole 104 horizontal groove 105 external thread 1 0 6 cover 11 flange 111 Internal thread 112 Rotary shaft 2 Square socket end 21 C-shaped buckle groove 22 Bolt groove 24 Hexagon nut 26 Variable signal member 3 Traverse device 4 Active member 41 Bolt hole 411 Bevel 412 Internal thread 412 a Groove 412b Cam groove 412c Passive member 42 Flange 421 Bevel 422 External thread 4 2 2 a Groove 422b Through hole 422c Ball 4 3 Post 44 Signal line 5 Wireless signal transmitter 50 Terminal ring 51 Insulating socket 52 Ball bearing 6, 60 Form number A0101 14 pages / total 32 pages 100120815 1002035202-0 201250217 thrust bearing 61 bushing bearing 63 sports equipment frame 70 five-way tube 701 strain gauge 9 steps (a), (b), C-shaped buckle 62 bicycle frame 7 five-way Tube 71 sprocket shaft 8 (c), (d), (e)

Ο 100120815 Form No. Α0101 Page 15 of 32 1002035202-0

Claims (1)

201250217 VII. Patent application scope: 1. A torsion sensor comprising: a tube body and a rotating shaft, which is penetrated by the rotating shaft, and at least two ball bearings are arranged between the two sides of the tube body and the rotating shaft; The variable signal component is mounted on the inside of the pipe body and is pressed by the rotating shaft through and the traverse device; a traverse device is mounted on the side of the variable signal component inside the pipe body, and is received by the rotating shaft Passing through and rotating by the rotating shaft to press the variable signal member, and providing a bushing bearing between the traverse device and the rotating shaft; a signal line or a wireless signal transmitting device, and the variable signal device and the horizontal signal The shifting device constitutes a signal output circuit; and an insulating socket is mounted on the two sides of the variable signal component and the traverse device, thereby blocking the pipe body to form a signal output circuit. 2. The torsion sensor according to claim 1, wherein a through hole is radially penetrated around the pipe body, and a horizontal groove is formed around the pipe body, and the horizontal groove is further Forming a vertical shape with the through hole; and one end of the tube body is provided with a cover. 3. The torque sensor of claim 1, wherein the variable signal member is a conductive rubber, a piezoelectric material or a piezoresistive material. 4. The torsion sensor according to claim 1, wherein a thrust bearing is provided between the variable signal member and the traverse device. [5] according to claim 1 The torsion sensor, wherein the traverse device further comprises an active member and a passive member, and at least one set of inclined surfaces or threaded slopes is disposed between the active member and the passive member. 6. The torque sensor according to claim 1, wherein the traverse device further comprises an active member and a passive member, and the active member and the passive member are 100120815. Form number A0101 is 16/32 At least one set of grooves and balls, or at least one set of studs and cam grooves are provided between pages 1002035202-0 201250217. The torque sensor according to any one of claims 1 to 6, wherein the variable signal member is placed in an insulating socket. 8. The torsion sensor according to claim 7, wherein a terminal ring having a conducting function is disposed between the variable signal member and the insulating socket, and the terminal ring is connected to the signal line. 9. A torque sensing method comprising the steps of: (a) a through hole extending radially in a pipe body, the pipe body being penetrated by a rotating shaft, and being disposed between the two sides of the pipe body and the rotating shaft At least two ball bearings; (b) an insulating socket, a variable signal member, a traverse device, a bushing according to the patent scope 1, 5, 6 or 7 are arranged in the interior of the pipe body The bearing is penetrated by the aforementioned rotating shaft; (c) a signal line or a wireless signal transmitting device, and the variable signal device and the traverse device constitute a signal output circuit; (d) the traverse device is subjected to a rotating shaft Driving, thereby laterally squeezing the variable signal component to cause the variable signal component to have the effect of outputting a variable signal; (e) transmitting the signal through the signal line or the wireless signal transmitting device, thereby measuring or applying the signal The shaft torque value signal. U 10 . - A torsion sensor comprising: a tube body and a rotating shaft, the shaft is penetrated by the shaft, and at least two ball bearings are arranged between the two sides of the tube body and the rotating shaft; Mounted on one side of the inner side of the pipe body, and is driven by the rotating shaft and driven by the rotating shaft; a plurality of strain gauges are mounted on the rotating shaft of the toothed disc and electrically connected to the signal line or the wireless signal transmitting device And a signal line or wireless signal transmitting device, and electrically connected with the plurality of strain gauges described above, and outputs a signal of the strain gauge. 100120815 Form No. A0101 Page 17 of 32 1002035202-0