JP3237174U - Clutch type transmission device and its torque detection module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a torque detection module capable of knowing an accurate torque value of an output torque of a clutch type transmission device. A torque detection module for a clutch-type transmission device includes a fixed outer cylinder, a planetary gear set, a transmission shaft, and a torque sensing assembler. A fixed outer cylinder is installed between the power source input shaft and the clutch power output assembler. The planetary gearset is connected to a clutch-type power output assembler. The transmission shaft connects the power source input shaft and the clutch-type power output assembler along the axial direction. The transmission shaft is housed in the torque strain cylinder of the torque sensing assembler. The strain gauge of the torque sensing assembler is installed in the torque strain cylinder perpendicular to the axial direction, and the planetary gear set senses the amount of strain shear force applied to the torque strain cylinder at an axial deviation angle of 45 degrees, and the planetary gear set. The output torque to be output to the clutch type power output assembler is calculated from. [Selection diagram] Fig. 2

Description

The present invention relates to a device and its module, and more particularly to a clutch type transmission device and its torque detection module.

The electric screw driver is supplied with rotational driving force by a power source input shaft and outputs rotational kinetic energy via a clutch-type power output assembler. Generally, it is applied to equipment that requires locking and mechanical torque locks, and by supplying rotational driving force with the power source input shaft, it is possible to omit the rotation operation by human power, shorten the locking time, and operate efficiency. Is improved.

The traditional electric screwdriver of the conventional technique allows the user to adjust the torque with a clutch type torque tuner exposed to the outside, but since the above adjustment is an approximate value, the torque value of the output torque is not known accurately. ..

Also, according to the prior art, there is an electric driver that utilizes a strain gauge to detect the torque value, in which the strain gauge is installed in the torque strain cylinder along the axial direction and the strain gauge bends. ) Detects the torque value. Since the strain gauges are installed in the torque strain cylinder along the axial direction, not only are normally four strain gauges installed, but the torque strain cylinder configuration corresponds to the four strain gauges described above. Since it is designed, the process becomes more complicated and the cost increases. Further, due to the configuration of the torque strain cylinder described above, bending becomes more concentrated, so that there is a risk of explosion easily. Therefore, the prior art is not practical.

The torque strain cylinder bursts due to the fact that the torque value of the output torque of the conventional electric screwdriver is not known accurately, the process is complicated, the cost is high, and the bending is more concentrated. In order to solve the problem of the present invention, the present invention provides a torque detection module of a clutch type transmission device.

In order to solve the problems of the prior art, the present invention provides a torque detection module for a clutch type transmission device, which is installed on a power source input shaft and a clutch type power output assembler, and has a fixed outer cylinder, a planetary gear set, a transmission shaft and a transmission shaft. , Torque sensing assembler is included.

A fixed outer cylinder is installed between the power source input shaft and the clutch power output assembler. The planetary gearset is connected to a clutch-type power output assembler. The transmission shaft connects the power source input shaft and the clutch type power output assembler along the axial direction. The torque sensing assembler includes a torque strain cylinder and at least one strain gauge. Both sides of the torque strain cylinder in which the transmission shaft is housed are fixed to the fixed outer cylinder and the planetary gear set, respectively. The strain gauge is installed in the torque strain cylinder so that it is perpendicular to the axial direction.

Among them, when the clutch mechanism of the clutch type power output assembler is in a separated state, the strain gauge has at least one 45 degree angle with respect to the axial direction applied to the torque strain cylinder by the planetary gear set. The amount of strain shear force is sensed, and the output torque output from the planetary gear set to the clutch type power output assembler is calculated.

According to the present invention, the torque detection module of the clutch type transmission device further includes a display interface, and the display interface is electrically connected to the torque sensing assembler to display the torque value of the output torque.

According to the present invention, the torque detection module of the clutch type transmission device further includes a processing unit, and the processing unit is electrically connected to the torque sensing assembler, so that the torque value of the output torque and the rotation circle of the output torque are formed. Process the numerical value and the action time value of the output torque.

According to the present invention, the torque detection module of the clutch type transmission device further includes a warning unit, and the warning information when the warning unit is electrically connected to the processing unit and the output torque triggers the warning condition. To generate.

According to the present invention, the torque detection module of the clutch type transmission device further includes a storage unit, in which the storage unit is electrically connected to the processing unit, and the torque value of the output torque described above and the torque value described above and the above. The rotation circle value of the output torque and the action time value of the above output torque are stored.

According to the present invention, the torque detection module of the clutch type transmission device further includes a communication unit, and the communication unit is electrically connected to the processing unit, so that the torque value of the above output torque and the above output torque are obtained. At least one of the rotation circle numerical value and the action time value of the above output torque is transmitted.

According to the present invention, the torque detection module of the clutch type transmission device includes an upper cylinder holder, a lower cylinder holder, and an extension cylinder portion in the torque strain cylinder. The upper cylinder holder is located beside the power source input shaft. The lower cylinder holder is located beside the clutch-type power output assembler. The extension cylinder portion has a hollow cylinder shape, and the upper cylinder holder and the lower cylinder holder are connected along the axial direction, and there is a circumferential wall for installing a strain gauge.

According to the present invention, the torque strain cylinder in the torque detection module of the clutch type transmission device includes an upper cylinder holder, a lower cylinder holder, and an extension portion. The upper cylinder holder is located beside the power source input shaft. The lower cylinder holder is located beside the clutch-type power output assembler. The stretched part is hollow, connects the upper cylinder holder and the lower cylinder holder along the axial direction, has two facing installation surfaces and two facing finished surfaces, and a strain gauge is installed on the installation surface. Will be done.

According to the present invention, each of the stretched portions in the torque detection module of the clutch type transmission device has recesses formed on the finished surface, and the recesses extend to the upper cylinder holder and the lower cylinder holder, respectively.

According to the present invention, each of the stretched portions in the torque detection module of the clutch type transmission device has a through hole formed on the finished surface, and the hole passes through the stretched portion as described above.

According to the present invention, the installation surfaces of the torque detection module of the clutch type transmission device are parallel to each other, and the finished surfaces are parallel to each other.

The present invention provides a clutch type transmission device for solving the problems of the prior art, and includes a power source, a clutch type power output assembler, and a torque detection module. The power source has a power source input shaft. The torque detection module is installed on the power source input shaft and clutch type power output assembler, and includes a fixed outer cylinder, a planetary gear set, a transmission shaft, and a torque detection assembler.

A fixed outer cylinder is installed between the power source input shaft and the clutch power output assembler. A clutch-type power output assembler is connected to the planetary gear set. In the transmission shaft, the power source input shaft and the clutch type power output assembler are connected along the axial direction. The torque sensing assembler includes a torque strain cylinder and at least one strain gauge. The torque strain cylinder houses the transmission shaft, and both sides are fixed to the fixed outer cylinder and the planetary gear set, respectively. The strain gauge is installed in the torque strain cylinder so that it is perpendicular to the axial direction. Among them, when one clutch mechanism of the clutch type power output assembler is in a separated state, the strain gauge has at least one 45 degree angle with respect to the axial direction applied to the torque strain cylinder by the planetary gear set. The amount of strain shear force is sensed, and the output torque output from the planetary gear set to the clutch type power output assembler is calculated.

As described above, the clutch type transmission device and its torque detection module according to the present invention are strain gauges as compared with the prior art by installing a torque strain cylinder so that the strain gauges are perpendicular to the axial direction. , The planetary gear set senses the amount of strain shear force applied to the torque strain cylinder at a 45 degree angle with respect to the axial direction, and calculates the output torque output from the planetary gear set to the clutch-type power output assembler. According to the present invention, the torque strain cylinder is hollow and the number of strain gauges is small, so that the process can be simplified and the cost can be reduced. In addition, the concentration of force is reduced, and the risk of bursting of the torque strain cylinder is lower than that of the prior art, so that the service life is extended. Further, according to the present invention, in the stretched portion of the torque strain cylinder, recesses and through holes are further formed on the finished surface, so that the cross-sectional area is reduced and the amount of deformation is improved even under the same torque. Therefore, the output torque calculated by the strain gauge becomes more accurate.

The present invention can actually achieve the intended function and purpose, and a person skilled in the art can carry out it accordingly by a detailed description, but can explain the features and spirit of the present invention more clearly. Expected and does not limit the scope of the present invention. The above embodiments are used only to illustrate the present invention, and all modifications in the equivalent structure still do not deviate from the scope of the present invention.

It is a three-dimensional view of the clutch type transmission device which concerns on the 1st Embodiment of this invention. It is an exploded view of the clutch type transmission device which concerns on 1st Embodiment of this invention. It is a cross-sectional view of AA local part of FIG. It is a cross-sectional conceptual diagram when the clutch type power output assembler is in a separated state. It is a cross-sectional view taken along the line BB of FIG. It is a conceptual diagram of the torque detection assembler of the torque detection module of the clutch type transmission device which concerns on 1st Embodiment of this invention. It is a conceptual diagram of the strain shear force amount generated in the strain gauge of the torque sensing assembler of the torque detection module of the clutch type transmission device which concerns on 1st Embodiment of this invention. It is a front view of the clutch type transmission device which concerns on 1st Embodiment of this invention. It is a block diagram of the torque detection module of the clutch type transmission device which concerns on 1st Embodiment of this invention. It is a three-dimensional view of the torque sensing assembler which concerns on the 2nd Embodiment of this invention. FIG. 10 is a cross-sectional view taken along the line C—C of FIG. It is a three-dimensional view of the torque sensing assembler which concerns on the 3rd Embodiment of this invention. 12 is a cross-sectional view taken along the line D—D of FIG.

Hereinafter, the present invention will be described in detail with reference to a conceptual diagram with specific embodiments. The following description and scope of requirements will give you a good idea of the advantages and features of the present invention. It should be noted that the diagram is simplified for convenience of explanation and may not be in exact proportion.

With reference to FIGS. 1 to 7, FIG. 1 is a three-dimensional view of the clutch-type transmission device according to the first embodiment of the present invention, and FIG. 2 is a three-dimensional view of the clutch-type transmission device according to the first embodiment of the present invention. It is an exploded view, FIG. 3 is a local cross-sectional view taken along the line A-A of FIG. 1, FIG. 4 is a cross-sectional conceptual view when the clutch type power output assembler is in a separated state, and FIG. 5 is a cross-sectional conceptual view. BB cross-sectional view, FIG. 6 is a conceptual diagram of a torque sensing assembler of the torque detection module of the clutch type transmission device according to the first embodiment of the present invention, and FIG. 7 is the first embodiment of the present invention. It is a conceptual diagram of the strain shear force amount generated in the strain gauge of the torque sensing assembler of the torque detection module of the clutch type transmission device which concerns on embodiment.

As shown in the figure, the clutch type transmission device 100 includes a torque detection module 1, a power source 3, a clutch type power output assembler 4, an output end housing 5, a main housing 6, a signal transmission line assembler 7, and a display box 8. .. The torque detection module 1 is installed between the power source 3 and the clutch type power output assembler 4, and includes a fixed outer cylinder 11, a planetary gear set 12, a torque detection assembler 13, and a transmission shaft 14.

The fixed outer cylinder 11 is installed between the power source input shaft of the power source 3 and the clutch type power output assembler 4. The planetary gear set 12 is connected to the clutch type power output assembler 4. In the transmission shaft 14, the power source input shaft and the clutch type power output assembler 4 are connected along the axial direction D1.

The torque sensing assembler 13 includes a torque strain cylinder 131 and at least one strain gauge, and the diagram is a conceptual diagram showing two strain gauges 132a and 132b. Both sides of the torque strain cylinder 131 in which the transmission shaft 14 is housed are fixed to the fixed outer cylinder 11 and the planetary gear set 12, respectively. The strain gauges 132a and 132b are installed in the torque strain cylinder 131 so as to be perpendicular to the axial direction D1. The strain gauges 132a and 132b are flake-shaped, and in geometry, they belong to the "plane" and in the axial direction D1, they belong to the "line", where the "strain gauges 132a and 132b are in the axial direction D1". "Installed in the torque strain cylinder 131 so as to be vertical" means that the normal vectors of the strain gauges 132a and 132b are perpendicular to the direction vector in the axial direction D1.

Further, the torque detection module 1, the power source 3, and the clutch type power output assembler 4 are located in the output end housing 5, the main housing 6, and the display box 8. The signal transmission line assembler 7 is connected to the main housing 6 and the display box 8.

The open / closed configuration of the clutch-type power output assembler 4 is in a coupled state, and as shown in FIG. 3, the output torque of the clutch-type power output assembler 4 is output from the planetary gear set 12 to the clutch-type power output assembler 4. It is torque.

When the open / closed configuration of the clutch type power output assembler 4 is in a separated state, as shown in FIG. 4, the clutch type power output assembler 4 has a gap S formed and the power source 3 stops operating as compared with FIG. At this time, the strain gauges 132a and 132b sense the amount of strain shear force applied to the torque strain cylinder 131 by the planetary gear set 12, and output the output torque output from the planetary gear set 12 to the clutch type power output assembler 4. calculate.

The planetary gear set 12 also includes a sun gear 121, a plurality of planetary gears 122 (one of which is shown in the figure), and a ring gear 123, as shown in FIG. The radius of the sun gear 121 is r _s , the radius of the planetary gear 122 is r _p , the radius of the ring gear 123 is r _r , and the centripetal distance between the sun gear 121 and the planetary gear 122 is r. _{At o} , the output torque is _To , the force received at the center of the planetary gear 122 is F _p , the force received by the ring gear 123 at the pitch circular radius is F _r , and the pitch of the sun gear 121. The force received on the radius of the circle is F _s , and the reaction force torque is T _r .

Output torque T _o = F _p * r _o , F _p = 2F _r = 2F _s , r _r = r _s + 2r _p , r _o = r _s + r _p , reaction torque T _r = F _r * r _r , Therefore, T _r = (F _p / 2) * (r _s + 2r _p ) = [T _o / 2 * (r _s + r _p )] * (r _s + 2r _p ). As described above, the strain gauges 132a and 132b sense the reaction torque (T _r ) of the ring gear 123 of the planetary gear set 12 and calculate the output torque (T _o ). The above symbols are for easy estimation of the formula, and are simplified in the diagram.

When the above output torque is output from the planetary gear set 12 to the clutch type power output assembler 4, the strain gauge 132a senses the amount of strain shear force. The deformation direction of the amount of strain shear force and the axial direction D1 form an angle of 45 degrees, as shown in FIG. 7. When the output torque is generated, the strain gauge 132a senses the amount of strain shear force and is deformed into the strain gauge 132a'by the amount of strain shear force, as shown in FIGS. 6 and 7. Since the strain gauge 132b is similar, the description thereof is omitted here. Therefore, the strain gauges 132a and 132b sense the amount of strain shear force applied to the torque strain cylinder 131 from the planetary gear set 12 in the axial direction D1 and the 45 degree angle, and the clutch type power output assembler from the planetary gear set 12. Calculate the output torque to be output to 4.

The torque strain cylinder 131 includes an upper cylinder holder 1311, a lower cylinder holder 1312, and an extension cylinder portion 1313. The upper cylinder holder 1311 is located near the power source input shaft of the power source 3. The lower cylinder holder 1312 is located beside the clutch-type power output assembler 4. The extension cylinder portion 1313 connects the upper cylinder holder 1311 and the lower cylinder holder 1312 along the axial direction D1. In this embodiment, the stretched cylinder portion 1313 has a hollow cylinder shape and has a circumferential wall. The strain gauges 132a and 132b are installed on the above-mentioned circumferential wall. In general, the upper cylinder holder 1311 is the fixed end and the lower cylinder holder 1312 is the output rotating end.

More specifically, when the lower cylinder holder 1312 receives torque (torque) along the first direction D2, the upper cylinder holder 1311 receives the torque in the second direction D2'in the opposite direction of the first direction D2. Receive. At this time, the upper left corner of the strain gauge 132a receives the strain shear force amount along the deformation direction D3, and the lower right corner of the strain gauge 132a receives the strain shear force amount along the deformation direction D4, and the lower left corner of the strain gauge 132a. The strain gauge 132a is deformed into the strain gauge 132a'because it receives the strain shear force in the corner along the deformation direction D5 and the strain shear force in the upper right corner of the strain gauge 132a along the deformation direction D6. do. Compared with the prior art, according to the present invention, the deflection angle between the deformation directions D3 and D5 of the strain shear force amount and the axial direction D1'is 45 degrees, and the deformation directions D4 and D6 of the strain shear force amount and the axial direction D1. It was detected that the angle of curvature was 45 degrees.

Compared with the prior art, in this embodiment, the stretching cylinder portion 1313 has a hollow cylinder shape, but the number of strain gauges 132a and 132b is smaller, so that the process is simpler and the cost is lower. .. Further, since the concentration of force is also less than that of the conventional technique, the present invention has a lower risk of bursting of the torque strain cylinder 131 than the conventional technique and a longer service life than the conventional technique.

Further, with reference to FIGS. 2, 8 and 9, FIG. 8 is a front view of the clutch type transmission device according to the first embodiment of the present invention, and FIG. 9 is a front view of the first embodiment of the present invention. It is a block diagram of the torque detection module of a clutch type transmission device. As shown in the figure, the torque detection module 1 further includes a display interface 15, a processing unit 16, a warning unit 17, a storage unit 18, and a communication unit 19.

The processing unit 16 is electrically connected to the torque sensing assembler 13 to process the torque value of the output torque, the rotation circle value of the output torque, and the action time value of the output torque. Further, the action time value here is the time for outputting the above output torque from the planetary gear set 12 to the clutch type power output assembler 4.

Further, the sensing signals of the strain gauges 132a and 132b of the torque sensing assembler 13 (only the strain gauge 132a is shown in FIG. 9) pass through the Wheatstone bridge 20, the signal amplification electric circuit 21, the filter 22, and the digital filter 23. Is sent to the processing unit 16.

Further, when the strain shear force amount is generated, the electric resistance of the strain gauges 132a and 132b changes. The Wheatstone bridge 20 converts changes in electrical resistance into voltage change signals. Since the pressure difference of the above voltage change signal is very small, the signal amplification electric circuit 21 amplifies the voltage and the pressure difference. Generally, the amplification factor is 500 times or more. Therefore, the sensed signal is amplified by the signal amplification electric circuit 21, and then the noise is filtered by the filter 22 for the first time. The Wheatstone bridge 20, the signal amplification electric circuit 21 and the filter 22 described above are usually installed in the output end housing 5 and the main housing 6.

Then, the sense signal after the noise is first filtered by the filter 22 is transmitted to the processing unit 16 via the signal transmission line assembler 7. When transmitting via the signal transmission line assembler 7, when the line is heavy load, the signal quality is affected by the generated electromagnetic waves, so that the sensed signal passes through the signal transmission line assembler 7. The signal quality and stability of the sensed signal is improved through the digital filter 23 before being transmitted to the processing unit 16. The digital filter 23 and the processing unit 16 described above are usually installed in the display box 8.

The display interface 15 displays the torque value of the above output torque, but is not limited by it. The display interface 15 also displays the rotation circle value and the action time value of the output torque. Practically, the display interface 15 is installed on the outer surface of one of the display boxes 8. In the present embodiment, the torque detection module 1 further includes a push button assembler 24, and the user can switch the information displayed on the display interface 15 according to the display interface 15.

The warning unit 17 is electrically connected to the processing unit 16 and generates warning information when the output torque triggers a warning condition. The warning condition is a torque value, a rotation circle value, or an action time value. For example, when the torque value does not reach the target torque value or when the torque value does not reach the torque lower limit value, the torque value is the torque upper limit. When the value is exceeded, when the rotation circle value is lower than the rotation speed lower limit value, when the rotation circle value is higher than the rotation speed upper limit value, when the action time value is lower than the time lower limit value, and when the action time value is higher than the time upper limit value. Time etc. The warning information is information that can warn the user by voice, characters, vibration, or other users.

The storage unit 18 is electrically connected to the processing unit 16 and stores the torque value, the rotation circle value, and the action time value processed by the processing unit 16.

The communication unit 19 is electrically connected to the processing unit 16 and transmits the torque value, the rotation circle value, and the action time value processed by the processing unit 16. The communication unit 19 can transmit the above information to a mobile device, a cloud database, or other device that can receive the above materials. The communication unit 19 can transmit the above materials through a communication interface such as Wi-Fi, Bluetooth (registered trademark), RS232, RS485, USB, RJ45, etc. In this embodiment, the processing unit 16, the warning unit 17, the storage unit 18, and the communication unit 19 are all installed in the display box 8.

In this embodiment, the strain gauges 132a and 132b are installed in the torque strain cylinder 131 so as to be perpendicular to the axial direction D1 as compared with the prior art, and the shaft applied by the planetary gear set 12 to the torque strain cylinder 131. The amount of strain and shear force at a 45-degree angle with direction D1 is sensed, and the output torque output from the planetary gear set 12 to the clutch-type power output assembler 4 is calculated.

Further, with reference to FIGS. 2, 10 and 11, FIG. 10 is a three-dimensional view of the torque sensing assembler according to the second embodiment of the present invention, and FIG. 11 is a sectional view taken along the line CC of FIG. .. As shown in the figure, the torque sensing assembler 13a includes a torque strain cylinder 131a and strain gauges 132a and 132b, and among them, the strain gauges 132a and 132b have the installation mode of the first embodiment and the strain shear force sensing method. Are the same, so the description thereof is omitted here.

The torque strain cylinder 131a includes an upper cylinder holder 1311a, a lower cylinder holder 1312a, and an extension portion 1313a. In the stretched portion 1313a, the upper cylinder holder 1311a and the lower cylinder holder 1312a are connected along the axial direction D1, and the two opposing installation surfaces S1a and S1b and the two opposing finished surfaces S2a and S2b are connected. be. As shown in FIG. 11, the stretched portion 1313a is hollow, and the installation surface S1a is parallel to the installation surface S1b, and the finished surface S2a is parallel to the finished surface S2b.

In this embodiment, the strain gauge 132a is installed on the installation surface S1a, and the strain gauge 132b is installed on the installation surface S1b. In the torque strain cylinder 131a, a concave portion Ta and a concave portion Tb are formed on the finished surface S2a and the finished surface S2b, respectively, and the concave portions Ta and Tb extend to the upper cylinder holder 1311a and the lower cylinder holder 1312a, respectively. .. After the recesses Ta and Tb are formed in the torque strain cylinder 131a, the cross-sectional area is reduced and the amount of deformation under the same torque is increased, so that the amount of strain shear force sensed by the strain gauges 132a and 132b becomes larger. , More accurate output torque can be calculated.

Finally, with reference to FIGS. 2, 12, and 13, FIG. 12 is a three-dimensional view of the torque sensing assembler according to the third embodiment of the present invention, and FIG. 13 is a sectional view taken along the line D to FIG. be. As shown in the figure, the torque sensing assembler 13b includes a torque strain cylinder 131b and strain gauges 132a and 132b, in which the strain gauges 132a and 132b have the installation mode and strain shear force of the first embodiment. Since the sensing method is the same, the description thereof will be omitted here.

The torque strain cylinder 131b includes an upper cylinder holder 1311b, a lower cylinder holder 1312b, and a stretched portion 1313b. In the stretched portion 1313b, the upper cylinder holder 1311b and the lower cylinder holder 1312b are connected along the axial direction D1, and there are two facing installation surfaces S1a and S1b and two opposing finished surfaces S2a and S2b. As shown in FIG. 13, the stretched portion 1313b is hollow, and the installation surface S1a is parallel to the installation surface S1b, and the finished surface S2a is parallel to the finished surface S2b.

In this embodiment, the strain gauge 132a is installed on the installation surface S1a, and the strain gauge 132b is installed on the installation surface S1b. In the present embodiment, in the torque strain cylinder 131b, a through hole Ha and a through hole Hb are formed on the finished surface S2a and the finished surface S2b, respectively, and the through holes Ha and Hb have an extension portion 1313b, respectively. Go through. Unlike the second embodiment, the through holes Ha and Hb do not extend to the upper cylinder holder 1311b and the lower cylinder holder 1312b. Since the through holes Ha and Hb have a weakening effect, the output torque calculated by the strain gauges 132a and 132b becomes more accurate.

As described above, the clutch type transmission device and its torque detection module according to the present invention are installed in the torque strain cylinder so that the strain gauge is perpendicular to the axial direction. According to the present invention, the strain gauge is a planetary gear set. Torque The output torque output from the planetary gear set to the clutch-type power output assembler is calculated by sensing the amount of strain shear force applied to the strain cylinder at a 45-degree angle in the axial direction. According to the present invention, the structure of the torque strain cylinder is hollow and the number of strain gauges is small, so that the process can be simplified and the cost can be reduced. In addition, the concentration of force is reduced, and the risk of bursting of the torque strain cylinder is lower than that of the prior art, so that the service life is extended. Further, according to the present invention, in the stretched portion of the torque strain cylinder, recesses and through holes are further formed on the finished surface, so that the cross-sectional area is reduced and the amount of deformation is improved even under the same torque. Therefore, the output torque calculated by the strain gauge becomes more accurate.

Although the features and spirit of the present invention will be well understood by explaining the above-mentioned better concrete examples in detail, the claims of the present invention are not limited by the above-mentioned better concrete examples. It also represents that various equivalent changes and changes are included in the claims of the present invention.

1 Torque detection module
11 Fixed outer cylinder
12 planetary gear set
13, 13a, 13b Torque sensing assembler
14 Transmission axis
15 Display interface
16 Processing unit
17 Warning unit
18 storage unit
19 Communication unit
100 Clutch type transmission
121 Sun gear
122 planetary gears
123 Ring gear
131, 131a, 131b Torque strain cylinder
132a, 132a', 132b Strain gauge
1311, 1311a, 1311b Upper cylinder holder
1312, 1312a, 1312b Lower cylinder holder
1313 Stretching cylinder part
1313a, 1313b Stretched part
20 Wheatstone bridge
21 Signal amplification electric circuit
22 Filter
23 Digital filter
24 Pushbutton assembler
3 Power source
4 Clutch type power output assembler
5 Output end housing
6 Main housing
7 Signal transmission line assembler
8 Display box
D1, D1'Axial direction
D2 first direction
D2'second direction
D3, D4, D5, D6 Deformation direction
Ha, Hb through hole
S gap
S1a, S1b installation surface
S2a, S2b Finished surface
Ta, Tb recess

Claims (12)

It is a torque detection module of the clutch type transmission device installed in the power source input shaft and the clutch type power output assembler.
A fixed outer cylinder installed between the power source input shaft and the clutch type power output assembler,
The planetary gear set connected to the clutch type power output assembler,
A transmission shaft to which the power source input shaft and the clutch type power output assembler are connected along the axial direction.
A torque strain cylinder in which the transmission shaft is housed and both sides are fixed to the fixed outer cylinder and the planetary gear set, respectively.
A torque sensing assembler, including at least one strain gauge, installed in the torque strain cylinder so as to be perpendicular to the axial direction.
Is included,
When the clutch mechanism of the clutch-type power output assembler is in a separated state, the at least one strain gauge is applied to the torque strain cylinder by the planetary gear set at least 45 degrees with respect to the axial direction. Calculates the output torque that is output from the planetary gear set to the clutch-type power output assembler by sensing the strain shear force of the angle.
A torque detection module for a clutch-type transmission that features this. The clutch type according to claim 1, further comprising a display interface, wherein the display interface is electrically connected to the torque sensing assembler to display the torque value of the output torque. Torque detection module for transmission. Further, a processing unit is included, and the processing unit is electrically connected to the torque sensing assembler to process the torque value of the output torque, the rotation circle value of the output torque, and the action time value of the output torque. The torque detection module of the clutch type transmission device according to claim 1, wherein the torque detection module is characterized in that. The third aspect of the invention further comprises a warning unit, wherein the warning unit is electrically connected to the processing unit and generates warning information when the output torque triggers a warning condition. The torque detection module of the clutch type transmission described. Further, a storage unit is included, and the storage unit is electrically connected to the processing unit, and the torque value of the above output torque, the rotation circle value of the above output torque, and the action time of the above output torque are included. The torque detection module for a clutch-type transmission according to claim 3, wherein the value is stored. Further, a communication unit is included, and the communication unit is electrically connected to the processing unit, and at least the torque value of the output torque, the rotation circle value of the output torque, and the action time value of the output torque are at least. The torque detection module of the clutch type transmission device according to claim 3, wherein one is transmitted. The torque strain cylinder has
The upper cylinder holder located near the power source input shaft,
The lower cylinder holder located near the clutch-type power output assembler,
A stretched cylinder portion having a hollow cylinder shape, in which the upper cylinder holder and the lower cylinder holder are connected along the axial direction and has a circumferential wall for installing the at least one strain gauge.
The torque detection module of the clutch type transmission device according to claim 1, wherein the torque detection module is included. Among them, the torque strain cylinder is
The upper cylinder holder located near the power source input shaft,
The lower cylinder holder located near the clutch-type power output assembler,
It is hollow and the upper cylinder holder and the lower cylinder holder are connected along the axial direction, and there are two facing installation surfaces and two facing finished surfaces, and the installation surface thereof is the said. The torque detection module for a clutch-type transmission according to claim 1, wherein at least one strain gauge is installed, and the extension portion is included. The stretched portion is described in claim 8, wherein a recess is formed in the finished surface thereof, and the recess extends to the upper cylinder holder and the lower cylinder holder. Cylinder type transmission device torque detection module. Among them, the torque detection module of the clutch type transmission device according to claim 8, wherein a through hole is formed in the stretched portion and in each of the finished surfaces thereof to pass through the stretched portion. .. Among them, the torque detection module of the clutch type transmission device according to claim 8, wherein the installation surfaces thereof are parallel to each other, and the finished surfaces thereof are parallel to each other. .. With a power source, which has a power source input shaft,
Clutch type power output assembler and
It is installed in the power source and the clutch type power output assembler, and is connected to the clutch type power output assembler and the fixed outer cylinder installed between the power source input shaft and the clutch type power output assembler. The transmission shaft to which the planetary gear set, the power source input shaft and the clutch type power output assembler are connected along the axial direction, and the transmission shaft are housed, and both sides are the fixed outer cylinders, respectively. A torque detection module having a torque strain cylinder fixed to the planetary gear set and at least one strain gauge installed in the torque strain cylinder so as to be perpendicular to the axial direction.
Is included,
When the clutch mechanism of the clutch-type power output assembler is in a separated state, the at least one strain gauge is applied to the torque strain cylinder by the planetary gear set at least 45 degrees with respect to the axial direction. A clutch-type transmission device characterized in that it senses the amount of strain and shear force of a vehicle, outputs it from the planetary gear set to the clutch-type power output assembler, and calculates the output torque.

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