TWM444249U - Force multiplying apparatus - Google Patents

Description

Double force device

The present invention relates to a device for increasing the torque output, and more particularly to a double force device.

As shown in FIG. 1 and FIG. 2, a torsion multiplier (Taiwan Patent No. M397882) includes a housing 1 having a ring gear portion 101, a rotatably disposed on the housing 1 and having an outer casing protruding outwardly. The connecting end 201 of the first gear 201 and the input shaft 2 of the sun gear portion 202 are rotatably disposed on the outer casing 1 and have a planetary arm frame 3 projecting outwardly from the output shaft 301 of the outer casing 1 The planetary ledge 3 is simultaneously meshed with the planetary gear 4 of the sun gear portion 202 and the ring gear portion 101, a torque sensor 5 disposed on the output shaft 301, and a signal pickup disposed on the output shaft 301 6. The signal pickup 6 has an inner ring 601 coupled to the output shaft 301 and rotating therewith, a middle ring 602 coupled to the outer side of the inner ring 601, and a set of outer rings 603 connected to the outer side of the inner ring 602. 602 has a plurality of contact conductors 604 electrically coupled to the torsion sensor 5, the outer ring 603 having a plurality of signal connection conductors 605 in contact with the contact conductors 604.

Thereby, when the user drives the connecting end 201 of the input shaft 2 with a torque tool (such as a hand tool, a pneumatic tool or a power tool) when the outer casing 101 is fixed, the sun gear of the input shaft 2 The portion 202 can drive the planetary gears 4 to rotate and revolve with respect to the ring gear portion 101, thereby driving the planetary boom 3 to rotate and reduce the torque output, so that the output shaft 301 of the planetary boom 3 can drive a lose A tool (such as a sleeve) is used to lock a screw-locking element, although in the process, the torque sensor 5 senses the torque output of the output shaft 301 and connects via the contact conductor 604 of the center ring 602. The signal of the outer ring 603 is connected to the conductor 605, and a torque value signal is output for reference by the user. However, since the torque sensor 5 is disposed on the output shaft 301, the output shaft 301 rotates with the output shaft 301. Such a torque multiplier must be provided with a complicated three-ring signal pickup 6 to output the sensed torque value signal.

In addition, another type of booster (such as Taiwan's new patents M406494 and M406495) has been proposed. This type of booster is designed to lengthen the output shaft of its planetary boom, so that its output shaft is exposed to a large section. In addition to the outer casing, it is convenient for a modular torque sensor to be installed. However, since the length of the output shaft of the power multiplier is greatly increased, not only the overall space is occupied, but also in use and installation. It is also inconvenient, and the length of the output shaft is increased, and it is also subjected to a larger bending moment in use, and is more susceptible to damage by force. In addition, since the torque sensor also rotates with the output shaft. Therefore, the user does not easily read the torque value displayed by the torque sensor.

Therefore, the purpose of the present invention is to provide a power absorbing device that is easy to output a torque value signal and is easy to use.

Therefore, the new power absorbing device comprises a fixed unit, an input unit, an output unit, and a strain sensing unit. The fixing unit has a barrel body and a fixed arm connected to the barrel body, and the barrel body has a surrounding body An inner peripheral surface of a through hole, and a ring gear portion provided on the inner peripheral surface. The input unit is rotatably disposed in the through hole and has an input end and a sun gear portion opposite to the input end. The output unit is rotatably disposed in the through hole, the output unit has a planetary boom, and a plurality of planetary gears respectively pivoted on the planetary boom and simultaneously meshed with the sun gear portion and the ring gear portion, the planet The boom has an output end opposite to the planetary gears. The strain sensing unit is disposed on the barrel of the fixing unit.

The above and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIG. 3, FIG. 4 and FIG. 5, a preferred embodiment of the power absorbing device of the present invention comprises: a fixed unit 10, an input unit 20, an output unit 30, a strain sensing unit 40, and a display. Unit 50, and a housing 60.

The fixing unit 10 has a barrel 11 and a fixed arm 12 connected to the barrel 11.

The barrel body 11 has an inner peripheral surface 13 surrounding a through hole 131, a ring gear portion 14 disposed on the inner peripheral surface 13, a joint portion 15, a large diameter portion 16 opposite to the joint portion 15, and a a ring shoulder portion 17 connected to the joint portion 15, and a small diameter portion 18 connected between the large diameter portion 16 and the ring shoulder portion 17, the outer diameter of the large diameter portion 16 and the ring shoulder portion 17 being larger than The small diameter section 18.

In the present embodiment, the joint section 15 has a non-circular cross section, and the shoulder section 17 has a avoidance groove 171.

In this embodiment, the fixed arm 12 is detachably coupled to the joint portion 15 of the barrel body 11. The fixed arm 12 has a coupling hole 121 having a non-circular cross section, and a positioning groove 122. The coupling portion 15 is detachably coupled to the coupling hole 121. It is to be noted that the cross section of the coupling portion 15 and the coupling hole 121 is preferably polygonal, for example, hexagonal; in addition, the coupling portion 15 is also A plurality of square teeth are provided, and the joint holes 121 are formed into a single socket hole, and the cross sections of the two can also be matched with each other to be more polygonal than six sides.

It can be understood that when the fixed arm 12 is connected to the barrel 11 and the fixed arm 12 is mounted and positioned, the fixed arm 12 can restrict the rotation of the barrel 11 and, in addition, in response to different installation environments. The fixed arm 12 can have different shapes and specifications, such as those disclosed in the prior art Taiwan Model No. M397882, M406494 or M406495.

The input unit 20 is rotatably disposed in the through hole 131 and has an input end portion 21 and a sun gear portion 22 opposite to the input end portion 21. In the embodiment, the input unit 20 serves as an input shaft, and the input end portion 21 extends out of the through hole 131 and has a working hole 211.

The output unit 30 is rotatably disposed in the through hole 131. The output unit 30 has a planetary arm frame 31, and is respectively pivotally mounted on the planetary arm frame 31 and simultaneously meshed with the sun gear portion 22 and the ring gear portion. Planetary gear 32 of 14 has an output end 311 opposite to the planetary gears 32. In the present embodiment, the planetary boom 31 serves as an output shaft, and the output end portion 311 extends through the through hole 131.

The strain sensing unit 40 is disposed on the barrel 11 of the fixing unit 10. In the present embodiment, the strain sensing unit 40 has a plurality of strain gauges 41 respectively disposed on the outer peripheral surface of the small diameter section 18. It can be understood that the strain gauges 41 can be electrically connected to each other to form a Wyeth bridge.

The display unit 50 is disposed on the barrel 11 and electrically connected to the strain sensing unit 40. The display unit 50 has a base 51 spanning between the large diameter section 16 and the shoulder shoulder 17 and embedded in the avoidance slot 171, a circuit board 52 disposed on the inner side of the base 51, and a circuit board 52 disposed on the base 51 The circuit board 52 is electrically connected to the strain sensing unit 40, a display 53 disposed on the circuit board 52, and at least one battery 55 disposed on the base 51 and electrically connected to the circuit board 52. And the operation keys 56 provided on the circuit board 52.

In this embodiment, the pedestal 51 has a transparent area 511 for viewing the display 54. The number of the batteries 55 is two. The operation keys 56 protrude from the permeable area 511 and are connected to each other to form A button board.

The outer casing 60 is sleeved on the large diameter section 16 and the annular shoulder section 17 of the barrel body 11 and surrounds the display unit 50. The outer casing 60 has an opening 61 corresponding to the transparent area 511 through which the user passes the opening 61. The information displayed by the display 54 can be read with the permeable area 511.

Therefore, as shown in FIG. 5 and FIG. 6 , after the user fixes the fixed arm 12 , the fixing arm 12 is locked and fixed by, for example, a positioning component 100 passing through the positioning slot 122 of the fixed arm 12 . Located on a working surface 200, the fixed arm 12 can restrict the rotation of the barrel 11. At this time, the user can utilize a torque tool 300 (such as a hand tool, a pneumatic tool or a power tool) and the working hole 211. The input end portion 21 of the input unit 20 is driven to be combined, and the sun gear portion 22 of the input unit 20 drives the planetary gears. The wheel 32 generates rotation and revolution with respect to the ring gear portion 14, thereby driving the planetary boom 31 to rotate and decelerating to increase the torque output. Thus, the output end portion 311 of the planetary boom 31 can drive an output tool 400 (for example, a sleeve). The cartridge) is used to lock a screw lock member 500 to the working surface 200. During this process, the reaction torque generated by the screw lock member 500 on the output end portion 311 of the planetary boom 31 passes through the planetary boom 31. The planetary gears 32 and the ring gear portion 14 are transmitted to the tubular body 11 so that the tubular body 11 is strained by the torque of the planetary gears 32, and the strain sensing unit 40 can sense the tubular body 11 The strain value is transmitted to the microprocessor 53 of the display unit 50. The built-in program of the microprocessor 53 can convert the torque output of the output end portion 311 of the planetary boom 31 according to the strain value, and torque the torque. Values are displayed on the display 54 for user reference.

Through the above description, the advantages of the new model can be summarized as follows:

1. The strain sensing unit 40 and the display unit 50 of the present invention are both disposed on the barrel 11 that does not rotate, and does not rotate with the output end 311 of the planetary boom 31. The strain sensing unit The display unit 50 can be easily electrically connected to each other. Therefore, the strain sensing unit 40 can directly output the torque value signal to the display unit 50 without using a complicated signal transmission structure. .

2. The strain sensing unit 40 and the display unit 50 of the present invention are both disposed on the barrel 11 that does not rotate, instead of being disposed at the output end 311 of the planetary boom 31. The present invention does not need to specifically The planetary boom 31 is designed to be lengthened. Therefore, compared with the prior art, the overall structure of the present invention is compact and does not occupy space, and is convenient for the user to operate and can be easily installed by the user. The fixed arm 12 is located to simplify the shape design of the fixed arm 12. In addition, the display unit 50 that does not rotate is more convenient for the user to read the torque value.

It is worth mentioning that the above embodiment uses a single-stage planetary gear train as the output of the multiple force. In order to more enlarge the output ratio, a multi-stage planetary gear train can be connected in series, for example, the input end portion 21 of the input unit 20 and the sun gear. The portion 22 is formed directly on the output shaft of a front stage planetary boom (not shown).

In summary, the power doubling device of the present invention not only can conveniently output the torque value signal to the display unit, but also facilitates the user to use and read the torque value, so the purpose of the present invention can be achieved.

However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change and modification made by the novel patent application scope and the novel description content, All remain within the scope of this new patent.

10‧‧‧Fixed unit

11‧‧‧

12‧‧‧Fixed arm

121‧‧‧Contact hole

122‧‧‧ positioning slot

13‧‧‧ inner circumference

131‧‧‧through hole

14‧‧‧Ring Gear Department

15‧‧‧Combined section

16‧‧‧ Large diameter section

17‧‧‧ ring shoulder

171‧‧‧ escaping slot

18‧‧‧Small path

20‧‧‧ input unit

21‧‧‧ Input end

211‧‧‧Working holes

22‧‧‧Sun Gear Department

30‧‧‧Output unit

31‧‧‧ Planetary boom

311‧‧‧ Output end

32‧‧‧ planetary gear

40‧‧‧Strain sensing unit

41‧‧‧Strain gauge

50‧‧‧ display unit

51‧‧‧Base

511‧‧‧Through area

52‧‧‧ boards

53‧‧‧Microprocessor

54‧‧‧ display

55‧‧‧Battery

56‧‧‧ operation keys

60‧‧‧ Shell

61‧‧‧ openings

100‧‧‧ Positioning components

200‧‧‧ work surface

300‧‧‧Torque Tools

400‧‧‧ Output Tools

500‧‧‧ screw lock components

1 is a schematic exploded perspective view of a conventional torque multiplier; FIG. 2 is a schematic cross-sectional view of a signal pickup of the torque multiplier; FIG. 3 is a perspective view of a preferred embodiment of the power doubling device of the present invention. 4 is a schematic exploded perspective view of the preferred embodiment; FIG. 5 is a cross-sectional view of the VV cut line in FIG. 3; and FIG. 6 is a cross-sectional view of the VI-VI cut line in FIG. The state of use of the preferred embodiment.

10‧‧‧Fixed unit

11‧‧‧

12‧‧‧Fixed arm

121‧‧‧Contact hole

13‧‧‧ inner circumference

131‧‧‧through hole

14‧‧‧Ring Gear Department

15‧‧‧Combined section

16‧‧‧ Large diameter section

17‧‧‧ ring shoulder

171‧‧‧ escaping slot

18‧‧‧Small path

20‧‧‧ input unit

21‧‧‧ Input end

211‧‧‧Working holes

22‧‧‧Sun Gear Department

30‧‧‧Output unit

31‧‧‧ Planetary boom

311‧‧‧ Output end

32‧‧‧ planetary gear

40‧‧‧Strain sensing unit

41‧‧‧Strain gauge

50‧‧‧ display unit

51‧‧‧Base

511‧‧‧Through area

52‧‧‧ boards

53‧‧‧Microprocessor

54‧‧‧ display

56‧‧‧ operation keys

60‧‧‧ Shell

61‧‧‧ openings

Claims (10)

A double force device comprising: a fixing unit having a barrel body and a fixed arm connected to the barrel body, the barrel body having an inner circumferential surface surrounding a through hole, and a inner circumferential surface disposed on the inner circumference surface a ring gear portion; an input unit rotatably disposed in the through hole, and having an input end portion and a sun gear portion opposite to the input end portion; an output unit rotatably disposed in the through hole The output unit has a planetary boom, and a plurality of planetary gears respectively pivoted on the planetary boom and simultaneously meshed with the sun gear portion and the ring gear portion, the planetary boom having an opposite to the planetary gears An output end portion; and a strain sensing unit disposed on the barrel of the fixed unit. The power doubling device according to claim 1, further comprising a display unit disposed on the barrel and electrically connected to the strain sensing unit. The doubling device according to claim 2, wherein the barrel further has a coupling section, a large diameter section opposite to the coupling section, a ring shoulder section connected to the coupling section, and a connection The small diameter section between the large diameter section and the annular shoulder section, the outer diameter of the large diameter section and the annular shoulder section is larger than the small diameter section, and the strain sensing unit is disposed on the small diameter section. The force-applying device according to claim 3, wherein the strain sensing unit has a plurality of strain gauges respectively disposed on an outer peripheral surface of the small-diameter section. According to the doubling device of claim 3, wherein the solid The fixed arm is detachably coupled to the joint portion of the barrel. The force-receiving device according to claim 5, wherein the joint portion of the barrel has a non-circular cross section, and the fixed arm has a non-circular joint hole in a cross section, and the joint portion can be The detaching ground is engaged with the coupling hole. The power doubling device of claim 3, wherein the shoulder portion of the barrel body has a escaping groove, and the display unit has a straddle between the large diameter portion and the ring shoulder portion and is embedded a base of the avoidance slot, a circuit board disposed inside the base, a microprocessor disposed on the circuit board and electrically connected to the strain sensing unit, a display disposed on the circuit board, and at least A battery disposed on the base and electrically connected to the circuit board. A power doubling device according to claim 7 wherein the susceptor has a permeable area for viewing the display. The power doubling device of claim 8, wherein the display unit further has an operation key disposed on the circuit board and protruding from the permeable area. The urging device of claim 9, further comprising a casing, the casing being sleeved on the large diameter section and the ring shoulder section of the barrel, and surrounding the display unit, the casing having a corresponding one The opening of the empty area.