TWI638152B - Power detector - Google Patents

Abstract

The power detecting machine of the present invention comprises: an electronic control unit; a speed reducer comprising a rotating shaft, an outer ring member rotatably disposed around the rotating shaft, and a speed reducing mechanism coupled between the rotating shaft and the outer ring member, One of the rotating shaft and the outer ring member is coaxially coupled to the output shaft of the device under test; a rotary damper coaxially coupled to the other of the rotating shaft and the outer ring member by The electronic control unit rotates in reverse with the output shaft according to a signal control corresponding to an output power; a sensor is connected to the electronic control unit to sense a power critical condition of the reducer, and the power critical condition is defined a critical state that the rotating shaft and the outer ring member are not rotated or reversed when being driven by the rotating damper and the output shaft; wherein the electronic control unit is in accordance with the power reducing condition of the speed reducer The output power of one of the devices to be tested should be calculated by the output power of the electronic control unit.

Description

Power detector

The present invention relates to a detector, and more particularly to a power detector.

Today's power machinery uses "power" as a measure of performance. Therefore, how to develop a more accurate and efficient measuring device under the existing measurement method has become a subject worthy of our consideration.

For example, a digital motor torque meter device disclosed in TWM462856 has an input force input terminal and a reducer output end. However, the invention mainly provides an accurate digital display torque value and accurately sets the torque of the shear pin. The demand for value, this does not belong to a high energy efficiency / power detector with the use of new reducer is inevitable related technology. Furthermore, high energy efficiency is equivalent to a reduction in the electricity bill consumed.

Therefore, it is necessary to provide a novel and progressive power detector to solve the above problems.

The main object of the present invention is to provide a power detector capable of effectively detecting the power of a device to be tested.

In order to achieve the above object, the present invention provides a power detecting machine comprising: an electronic control unit; a speed reducer comprising a rotating shaft, a rotatably disposed outer ring member around the rotating shaft, and a coupling to the rotating shaft and the outer ring a speed reduction mechanism between the components, one of the rotating shaft and the outer ring member for coaxially connecting with an output shaft of a device to be tested; a rotary damper coaxially coupled with the rotating shaft and the outer ring member One is connected to the same, and the electronic control unit rotates in reverse with the output shaft according to a signal control corresponding to an output power; a sensor is connected to the electronic control unit to sense a power threshold of the reducer a condition that the power critical condition is defined as a critical state in which the rotating shaft and the outer ring member are not rotated or reversed by the rotating damper and the output shaft; wherein the electronic control unit is based on the speed reducer Under the power critical condition, the output power of the electronic control unit is matched, and the output power of one of the devices to be tested is calculated.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to FIGS. 1 through 3, there is shown a preferred embodiment of the present invention. The power detector 1 of the present invention includes an electronic control unit 10, a speed reducer 20, a rotary damper 30, and a sensor 40.

The speed reducer 20 includes a rotating shaft 21, an outer ring member 22 rotatably disposed around the rotating shaft 21, and a speed reducing mechanism 23 coupled between the rotating shaft 21 and the outer ring member 22. The rotating shaft 21 and the outer ring One of the components 22 is coaxially coupled to the output shaft 24 of a device under test. The rotary damper 30 is coaxially coupled to the other of the rotating shaft 21 and the outer ring member 22, and is rotated in the opposite direction from the output shaft 24 by the electronic control unit 10 according to a signal control corresponding to an output power. The sensor 40 is coupled to the electronic control unit 10 and senses a power critical condition of the reducer 20, the power critical condition being defined as the rotating shaft 21 that is driven by the rotating damper 30 and the output shaft 24 And the outer ring member 22 reaches a critical state of no rotation or reversal. The electronic control unit 10 calculates the output power of one of the devices to be tested according to the output power of the electronic control unit 10 corresponding to the power reducer under the power critical condition. Thereby, the output power of the device under test can be detected directly and simply.

The electronic control unit 10 includes a setter 11 and a recorder 12, the setter 11 can set the output power, and the recorder 12 can record the output power and the power critical condition from the sensor 40.

The speed reducer 20 is, for example, a harmonic reducer 2, which can be of a smaller size, and of course other types. The power detecting machine 1 further includes a plurality of cam members 231 and a plurality of internal gears 232. The inner portion of the outer ring member 22 includes at least one external gear 233. The outer periphery of the rotating shaft 21 is provided with a plurality of cam coupling portions 234, and the plurality of cam members 231 respectively Provided in the plurality of cam joints 234 and synchronously rotated with a spindle 235, at least two of the plurality of cam members 231 have an angular phase difference of a value other than zero, and the plurality of internal gears 232 are rigid materials, and the plurality The gears 232 are respectively sleeved on the plurality of cam members 231 and do not rotate with the plurality of cam members 231, and the plurality of internal teeth 232 are partially meshed with the at least one external gear 233, respectively. Preferably, the speed reducer 20 has a reduction ratio of not less than 1:3 (for example, 1:8), which can reduce the power requirement specification of the rotary damper 30, is small in size, and is economical.

The shaft 21 is further connected with a shaft joint mechanism 60 coaxially coupled to the output shaft 24 of the device to be tested. The shaft joint mechanism 60 extends axially from the outer ring member 22, and the rotary damper 30 and the outer shaft The ring member 22 is connected to the same. The shafting mechanism 60 is provided with a plurality of holes 61 for connecting with the output shaft 24 of the device to be tested by a plurality of fastening members 25 for convenient disassembly. It can be understood that the rotary damper 30 can also be coaxially connected with the rotating shaft 21, and the outer ring member 22 is rotatably connected with the output shaft 24 of the device to be tested.

In the present embodiment, the rotary damper 30 is a motor (such as a servo motor), but other forms of dampers, such as friction dampers, torsion trip mechanisms or the like, may be used.

The sensor 40 can be a contact or non-contact sensor, which is a non-contact sensor in the embodiment and is disposed on the outer side of the outer ring member 22, and does not affect the output of the device under test. Power detection.

In the present embodiment, the power detecting device 1 further includes a body 50. The electronic control unit 10, the rotating damper and the sensor are disposed on the body 50. The body 50 is further provided with a plurality of supporting structures 51. At least one of the plurality of support structures 51 can be moved and adjusted relative to the body 50, and preferably all of them are adjustable, and can be stably supported according to the requirements of different working environments. The supporting structure 51 includes a boom pivotally connected to the body 50 and a leg adjustably coupled to the arm. The length of the leg relative to the arm is variable, and the appropriate height can be adjusted according to the working environment. Preferably, the body 50 is further provided with at least one wheel set 52 for convenient movement.

1‧‧‧Power detector

10‧‧‧Electronic control unit

20‧‧‧Reducer

30‧‧‧Rotary damper

40‧‧‧ sensor

50‧‧‧ body

21‧‧‧ shaft

22‧‧‧Outer ring parts

23‧‧‧Deceleration mechanism

24‧‧‧ Output shaft

25‧‧‧Fixed parts

11‧‧‧Setter

12‧‧‧ Recorder

51‧‧‧Support structure

52‧‧‧ Wheel set

2‧‧‧ harmonic reducer

231‧‧‧Cam parts

232‧‧‧Internal gear

233‧‧‧External gear

234‧‧‧Cam joint

235‧‧‧ mandrel

60‧‧‧ shaft joint mechanism

61‧‧‧ hole department

1 is a perspective view of a preferred embodiment of the present invention. Figure 2 is a cross-sectional view of a preferred embodiment of the present invention. 3 is a cross-sectional view of a speed reducer in accordance with a preferred embodiment of the present invention.

Claims (9)

A power detecting machine includes: an electronic control unit; a speed reducer including a rotating shaft, an outer ring member rotatably disposed around the rotating shaft, and a speed reducing mechanism coupled between the rotating shaft and the outer ring member, One of the rotating shaft and the outer ring member is coaxially coupled to the output shaft of the device under test; the rotary damper is coaxially coupled to the other of the rotating shaft and the outer ring member, The electronic control unit rotates in reverse with the output shaft according to a signal control corresponding to an output power; a sensor is coupled to the electronic control unit to sense a power critical condition of the reducer, and the power critical condition is defined as When the rotating damper and the output shaft are driven by the rotating shaft, the rotating shaft and the outer ring member are in a critical state of not rotating or reversing; wherein the electronic control unit is corresponding to the power reducer under the power critical condition The output power of the electronic control unit is calculated, and the output power of one of the devices to be tested is calculated; further comprising a plurality of cam members and a plurality of internal gears, the inner portion of the outer ring member comprising at least one external gear, the outer circumference of the rotating shaft a plurality of cam joints respectively disposed at the plurality of cam joints and rotating synchronously with a spindle, at least two of the plurality of cam members having an angular phase difference of a value other than zero, the plurality of internal gears being a rigid material, the plurality of internal gears are respectively sleeved on the plurality of cam members and are not rotated with the plurality of cam members, and the plurality of internal teeth are respectively engaged with the at least one external gear portion. The power detector of claim 1, wherein the electronic control unit comprises a setter and a recorder, the setter can set the output power, and the recorder can record the output power and the power from the sensor Critical condition. The power detector of claim 1, wherein the speed reducer is a harmonic reducer. The power detecting machine of claim 1, wherein the rotating shaft is further connected with a shafting mechanism coaxially connected to the output shaft of the device to be tested, and the shafting mechanism axially extends out of the outer ring member. The rotary damper is rotatably coupled to the outer ring member. The power detector of claim 1, wherein the sensor is a contact or non-contact sensor. The power detector of claim 1, wherein the electronic control unit comprises a setter and a recorder, the setter can set the output power, and the recorder can record the output power and the power from the sensor a critical condition; the reduction ratio of the reducer is not less than 1:3; the shaft is further connected with a shaft joint mechanism coaxially connected to the output shaft of the device to be tested, and the shaft joint extends axially out of the outer ring. a plurality of holes, the plurality of holes are connected to the output shaft of the device to be tested by a plurality of fixing members, the rotating damper being a motor and being rotatably connected with the outer ring member; The sensor is a non-contact sensor and is disposed on an outer side of the outer ring member. The power detector of any one of claims 1 to 6, further comprising a body, the electronic control unit, the rotary damper and the sensor are disposed on the body, and the body is further provided with a plurality of support structures, At least one of the plurality of support structures is adjustable relative to the body movement. The power detector of claim 7, wherein the support structure comprises a boom pivoted to the body and a leg adjustably coupled to the boom, the leg being variable in length relative to the boom . The power detector of claim 7, wherein the body is further provided with at least one wheel set.