TWM540860U - Pneumatic and manual clutch device of power winch - Google Patents

Description

Air pressure and manual clutch device for power winch

The present invention relates to a clutch device for a power winch, and more particularly to a pneumatic and manual clutch device for a power winch having both a pneumatic clutch and a manual clutch.

According to the power winch, it is designed to be used as a hanging load or a drag load. The most common example is the "lifting hoist" used for vertical lifting of high-rise hanging goods. It is a kind of power winch; in addition, it is installed in jeep and off-road vehicles. The cable hoisting machine used to haul it (he saved) or dangerously moved out of danger (self-rescue) is also a power winch. The driving principle of the power winch is to output the forward or reverse transmission power by a power source (such as a power motor), and after a speed reduction mechanism, drive a cable wheel to rotate forward or reverse to send the cable or retract The cable, the front end of the cable is hooked by a hammer hook to load the load (heavy object, its car or anything, etc.) to move the load.

There are many types of constructions of the conventional power winch. One conventional power winch 10 has a motor 11 on one side of the power winch 10, and the power of the motor 11 is driven by the internal shaft drive. The deceleration device 12 is disposed on the other side, and the internals of the deceleration device 12 are driven by a plurality of planetary gear sets to drive a cable 13 to rotate around the cable (not shown). It can be used for releasing or retracting; one of the cable pulleys 13 is provided with a clutch device 14 in the deceleration device 12, and a handle 141 is upwardly extended. Manually operating the handle 141 to lower or raise the cable pulley 13 can The transmission between the reduction gears 12 is connected or disconnected; the cable pulley 13 is supported by a fixed seat 15 to make the overall power winch 10 transmission stable and smooth without errors.

As shown in FIG. 3 and FIG. 4 , the clutch device 14 is disposed on the inner side of the reduction gear box 121 of the reduction gear unit 12 with an inner ring tooth 142 that can be coupled with the speed reduction device 12 . The outer ring surface of the inner ring tooth 142 . There are a plurality of braking grooves 143. The top surface of the reduction box 121 is provided with a through slot 122 corresponding to the braking groove 143. The inner side of the slot 122 is provided with an internal thread 1221 (shown in the third figure). The through slot 122 is sequentially provided with a clutch lever 144 having an end portion having an internal thread groove 1441. The bottom end of the clutch lever 144 can be embedded in one of the brake grooves 143 to stop the inner ring gear 142. Rotating; a set of elastic members 145 disposed on the clutch lever 144, a sleeve 146 having an outer thread 1461 and a screw thread 1221 of the slot 122, and a sleeve 146 disposed above the sleeve 146 a handle 141 and an engaging member 147 for engaging and fixing the handle 141 and the clutch lever 144; please refer to the fifth and sixth figures, the center of the top surface of the sleeve 146 and the opposite side thereof are high. The low step faces 1460, 1461 are disposed to form a height drop.

By the assembly of the above-mentioned members, it is possible to assemble the structure as shown in the fourth figure. When used as shown in the seventh figure, the handle 141 is pulled up to be higher than the high-order surface 1460 of the sleeve 146 and rotated. When the bottom edge of the handle 141 is pressed against the high-order surface 1460 of the sleeve 146, the bottom end of the clutch lever 144 that is lifted by the handle 141 is disengaged from the latching groove 143. Therefore, the inner ring gear 142 can be freely rotated, and the action of the speed reducing device 12 is broken, and the cable pulley 13 cannot be connected to the cable wheel 13 so that the operator can pull out the steel cable for hooking and pulling objects. Conversely, when the handle 141 is returned to the lower end, the bottom end of the clutch lever 144 is re-entered into any of the braking grooves 143, so that the inner ring teeth 142 stop rotating, that is, as shown in the second figure, The power of the reduction gear 12 can be transmitted to the cable pulley 13 to pull the cable back by the power transmission to achieve the purpose of pulling the article with the cable.

The clutch device 14 provided in the above-mentioned conventional power winch 10 is a pure manual operation, and the operator must approach the power winch 10 so that the hand can touch the handle 141 of the clutch device 14 so that the handle 141 can be operated. The lifting action, of course, causes inconvenience in use. Because the installation position of the power winch may be in the front bumper of the vehicle, or on the roof of the vehicle or on the bucket, it is often a position that is not easily accessible to the operator's hand, so that the above-mentioned conventional power winch 10 is provided. The clutch device 14 does not have a real impractical defect, but it must be close to the power winch 10 in operation to be used as a missing use, and the real value is improved.

In response to the above-mentioned shortcomings, the creator insists on the spirit of excellence in the creation, and is deeply conceived in research and development and improvement.

The reason is that the main purpose of this creation is to provide a power winch that makes the operation of the clutch device more convenient.

Another main purpose of this creation is to provide a power winch that combines both pneumatic clutching and manual clutching.

In order to achieve the above objective, the present invention designs a pneumatic winch and manual clutch device for a power winch. The power winch has a motor, and the power of the motor is driven by an internal shaft drive to drive a speed reducer, and the speed reducer passes through a plurality of planetary gears. After the transmission of the group, a cable wheel is rotated, so that the wire rope wound around the cable wheel can be released or retracted. The speed reducer has a speed reducer, and the inner side of the speed reducer is provided with a gearbox. a ring gear having a plurality of brake grooves on an outer ring surface of the inner ring gear, a top surface of the reduction gear box is provided with a groove corresponding to the brake groove, and a clutch device is mounted on the groove The clutch device has a clutch lever through which the bottom end of the clutch lever can correspond to one of the brake grooves, the clutch lever is connected upwardly to a handle, and the handle is manually operated to descend or raise to connect the bottom end of the clutch lever Entering or disengaging the latch of one of the brake grooves, and connecting or disconnecting the transmission between the reduction gear and the cable wheel; characterized in that the clutch device can be driven Into the clutch device, the clutch pressure of the lifting rod from the bottom end of which a brake engaging recess, so that the joint means is disconnected from the reduction of the transmission between the cable pulley.

In the air pressure and manual clutch device of the power winch, the clutch device has a lower seat body, a clutch lever, an upper seat body and a handle, wherein the bottom portion of the lower seat body is engaged with the slot of the reduction gear box, and the lower seat body A longitudinal groove is formed in the longitudinal direction, and a positioning wall is formed at the upper portion, and a ring groove is formed at the upper portion and is inserted into an O-ring; the clutch rod is inserted into the through groove of the lower seat body, and the lower portion of the clutch rod is opened. a ring groove is encircled into an O-ring to be in close contact with the inner wall of the groove. The clutch rod extends upward to form a large disk segment, and a ring groove is formed around the ring groove and is inserted into an O-ring, and then extended upward. The diameter is reduced, and a micro groove is formed in the peripheral wall of the top section and is encircled into an O-ring. Finally, a joint groove is formed inwardly downwardly, and an elastic member is sleeved from the top to the periphery of the clutch rod. The bottom end of the elastic member abuts against the large disc segment; the bottom portion of the upper seat body is hollowed inwardly, the bottom end and the lower seat body are joined to the positioning wall, and the O-ring of the lower seat body is pressed to form a close patch. When the upper seat body extends upward, the inner wall corresponds to the large disk segment of the clutch lever and Pressing the O-ring around the large disk segment to form a close contact, and forming a lower air chamber below the large disk segment and the lower seat body, the clutch lever and the upper seat body, the peripheral wall of the upper seat body corresponding to the lower portion An air inlet is extended to the outside of the air chamber for locking a pneumatic joint, and the upper body extends upwardly to form a continuous groove inwardly for the top end of the clutch rod to protrude, and the upper wall of the upper body is squeezed Pressing the O-ring on the peripheral wall of the top portion of the clutch rod to form a close contact, the top end of the elastic member abuts against the inner top wall of the upper seat body, and the upper seat body forms an upper air chamber with the clutch rod and the large disc portion. The upper seat body defines an air passage on the peripheral wall, so that the upper air chamber is open to the outside, a muffler is locked on the outer side of the air passage, a mesh body is connected to the front end of the silencer, and a through slot is opened in the top of the handle. The upper seat body is covered, and a joint member passes through the through groove and is engaged with the engagement screw groove of the clutch rod.

With regard to the above-mentioned objects, the technical means and the achievable effects of the present invention, the following preferred embodiments are described in detail with reference to the accompanying drawings, and can be fully understood.

Referring to the eighth to tenth embodiments, the present embodiment is provided with a clutch device 24 on a power winch 20, which is similar to the conventional power winch 10 described above. The power winch 20 has a speed reducing device 22, An inner ring gear 242 is disposed on the inner side of the reduction gear box 221 of the reduction gear unit 22, and a plurality of brake grooves 243 are disposed on the outer ring surface of the inner ring gear 242. The top surface of the reduction gear box 221 is provided. A through slot 222 corresponding to the brake groove 243 is defined on the inner side of the through slot 222.

The clutch device 24 includes a lower seat body 244. The outer wall of the bottom portion has an outer thread 2441. The lower body 244 is screwed into the slot 222 of the reduction box 221 from the top to the bottom of the gear box 2441 to achieve a stable joint. Then, a positioning nut 2442 is screwed down along the outer screw 2441 to force the top surface of the reduction gear box 221 to assist in achieving close engagement between the lower base 244 and the through slot 222. The lower base 244 is 244. a longitudinal groove 2443 is formed in the longitudinal direction, a positioning wall 2444 is formed at the upper portion, and a ring groove 2445 is opened at the upper portion to enclose an O-ring 2446, and the outer wall of the top end has an external thread 2447;

A clutch lever 245 is inserted into the through slot 2443 of the lower base 244 from the top to the bottom, and the bottom end thereof can be manipulated to protrude from the bottom end of the through slot 2443 and into the one of the braking grooves 243. A ring groove 2451 is defined in the lower portion of the clutch rod 245, and an O-ring 2452 is looped to achieve a close-fitting effect on the inner wall of the through groove 2443. The clutch rod 245 is extended upward and gradually widened to form a large disk segment 2453. A ring groove 2454 is formed around the ring, and an O-ring 2455 is looped into the O-ring 2455. Then, the diameter is gradually reduced, and a micro-groove 2456 is opened on the peripheral wall of the top section, and an O-ring 2457 is inserted into the end. An engaging groove 2458 is opened, an elastic member 2459 is sleeved from the top to the periphery of the clutch rod 245, and the bottom end of the elastic member 2459 is above the large disc segment 2453;

There is a upper body 246, and the bottom portion is opened inwardly to cover the elastic member 2459, the clutch rod 245 and the top end of the lower seat body 244. The inner peripheral wall of the bottom end of the upper seat body 246 is an inclined wall, and the upper portion is provided with an inner wall. The screw 2461 is screwed into the outer screw 2447 on the outer wall of the top end of the lower base 244 such that the bottom end surface of the lower base 244 abuts the positioning wall 2444 of the lower base 244, and the inclined wall Abutting and pressing the O-ring 2446 to form a close-fitting (airtight) effect, the upper seat 246 gradually decreases in diameter as it extends upward, so that the inner wall of the large disk segment 2453 corresponding to the clutch lever 245 is offset. The O-ring 2455 is pressed and pressed to form a close-fitting (airtight) effect, and thus a space between the lower disk segment 2453 and the lower seat 244, the clutch lever 245 and the upper seat 246 forms a lower air chamber 2462. An air inlet 2463 extends from the peripheral wall of the upper body 246 to the outside of the lower air chamber 2462 for locking a pneumatic joint 2464, and the upper seat 246 is further reduced in diameter when extending upward. The top end forms a constant groove 2465 inwardly for the top end of the clutch rod 245 to protrude, and the peripheral wall of the through groove 2465 is pressed and pressed The O-ring 2457 forms a close-fitting (airtight) effect. At this time, the top end of the elastic member 2459 will abut against the inner top wall of the upper body 246, and the upper seat 246 and the clutch rod 245 and the large disc. An upper air chamber 2466 is formed between the segments 2453; the upper body 246 defines an air passage 2467 on the peripheral wall, so that the upper air chamber 2466 can be connected to the outside, and the outer side of the air passage 2467 can be locked with a muffler 2468, the muffler 2468 The front end is connected to a network body 2469; and

There is a handle 241, a through slot 2411 is defined in the top portion, and the bottom portion can cover the upper seat body 246, and is then locked by the engaging member 247 from the top to the bottom through the through slot 2411 to lock with the engaging groove 2458 of the clutch lever 245. Pick up.

After the above assembly is completed, there are two options for the clutch control of the clutch device 24, and the first option is to select the manual control clutch. Referring to the eleventh figure, the handle 241 is pulled up. When the top surface of the upper body 246 is rotated and the rotation is close to or equal to 90°, the clutch rod 245 is compressed to compress the elastic member 2459 to rise synchronously, so that the bottom end of the clutch rod 245 is disengaged from the card for the brake groove 243.掣, the inner ring tooth 242 can be freely rotated, and the action of the speed reducing device 22 is also disconnected, so the operator can pull out the steel cable very effortlessly for hooking and pulling the article; otherwise, when the handle 241 is restored When the bottom end of the clutch lever 245 is re-entered into any of the brake grooves 243, the inner ring gear 242 stops rotating, that is, the state as shown in FIG. 9 is restored, and the power of the reduction gear 22 is re-established. The cable wheel 13 is reached to pull the cable back by the power transmission to achieve the purpose of pulling the article with the cable.

The second option is to select the pneumatic control clutch. Referring to Figure 12, the air connection 2464 is sleeved with an additional air connection 30, and the air connection 30 is pumped through the pipeline. The device (not shown) is connected. Therefore, when the air pump is activated to perform the air pumping operation, the air pressure is continuously driven into the lower air chamber 2462 via the air pressure connector 2464 and the air inlet 2463, thereby lifting the clutch lever. 245 is gradually increased. At this time, the air in the upper air chamber 2466 is compressed and passed through the mesh body 2469 to the outside through the muffler 2468. In the case where the air inlet 2463 continues to be inhaled, the clutch lever 245 The bottom end of the deceleration device 22 is disengaged from the engagement of the brake groove 243, so that the deceleration device 22 transmits the power to the inner ring tooth 242 to be disconnected, so that the operator can pull out the steel cable very effortlessly to hook and drag the article. Conversely, when the pumping action of the air pumping device is stopped and the connection between the airing joint 30 and the air pressure joint 2464 is removed, the high pressure gas in the lower air chamber 2462 is reversely discharged by the air pressure joint 2464, and at the same time With the silencer 2468 Through the action of the mesh body 2469 to the outside world, the gas will quickly enter the upper air chamber 2466, and the air pressure is balanced between the upper and lower air chambers 2466 and 2462. During the process, the bottom end of the clutch lever 245 is re-entered into any brake. When the groove 243 is inside, the inner ring tooth 242 is stopped from rotating, and the state as shown in FIG. 9 is restored. At this time, the power of the speed reducing device 22 reaches the cable wheel 13 again to pull the cable back by the power transmission. To achieve the use of steel rope to haul items.

It can be seen from the above description that the present invention mainly sets the clutch device of the power winch to have two options of manual control clutch and air pressure control clutch, wherein the air pressure control clutch mode only needs to connect the air outlet joint of the air pumping device and the air pressure in the clutch device. When the joint is properly connected, the clutch device can be "off" or "closed" by starting or stopping the air pumping device even if it is standing far away from the power winch. In order to start or stop the air pumping device, it can be achieved by remote wired remote control or remote wireless remote control, so the operation can be extremely convenient.

In summary, the pressure and manual clutch device of the power winch disclosed in this creation has not been seen in the past, and it can achieve the intended purpose of creation. It has already possessed novelty and practical progress, and filed a patent application according to law. Please feel free to review and give approval.

(conventional example)
1‧‧‧Power winch
11‧‧‧Motor
12‧‧‧Deceleration device
121‧‧‧Reducing box
122‧‧‧through slot
1221‧‧‧ internal thread
13‧‧‧ cable wheel
14‧‧‧ clutch device
141‧‧‧Handle
142‧‧‧ inner ring teeth
143‧‧‧Brake groove
144‧‧‧Clutch rod
1441‧‧‧Threaded groove
145‧‧‧Flexible components
146‧‧ ‧ sleeve
1460‧‧‧High-order surface
1461‧‧‧Low-order surface
147‧‧‧Connecting parts
15‧‧‧ fixed seat
(this creation)
20‧‧‧Power winch
22‧‧‧Deceleration device
221‧‧‧ Gearbox
222‧‧‧through slot
2221‧‧‧ internal thread
24‧‧‧ clutch device
241‧‧‧Handle
2411‧‧‧through slot
242‧‧‧ Inner ring teeth
243‧‧‧Brake groove
244‧‧‧ lower body
2441‧‧‧ external helical teeth
2442‧‧‧ Positioning nut
2443‧‧‧Tough
2444‧‧‧ Positioning wall
2445‧‧‧ Ring groove
2446‧‧‧O-ring
2447‧‧‧ external helical teeth
245‧‧‧Clutch rod
2451‧‧‧ Ring groove
2452‧‧‧O-ring
2453‧‧‧large disc segment
2454‧‧‧ Ring groove
2455‧‧‧O-ring
2456‧‧‧Microslot
2457‧‧‧O-ring
2458‧‧‧Joined groove
2459‧‧‧Flexible parts
246‧‧‧The upper body
2461‧‧‧ internal thread
2462‧‧‧Air chamber
2463‧‧‧ Inlet
2464‧‧‧Pneumatic connector
2465‧‧‧ slot
2466‧‧‧Upper chamber
2467‧‧‧ Airway
2468‧‧‧Muffler
2469‧‧‧Net body
247‧‧‧Connecting parts
30‧‧‧Air connector

The first figure shows a perspective view of the appearance of a conventional power winch. The second figure shows a combined sectional view of the clutch device and the speed reducer in the conventional power winch. The third figure shows an exploded view of the clutch device and the partial reduction device in the conventional power winch. The fourth figure shows a combined sectional view of the clutch device and the partial reduction device in the conventional power winch. The fifth figure shows a partial plan view of the sleeve of the conventional power winch. The sixth figure is a cross-sectional view of a-a in the fifth figure. The seventh figure shows a schematic diagram of the use of the "off" action of the clutch device in the conventional power winch. The eighth figure shows a partial perspective view of the present embodiment. The ninth drawing shows an assembled cross-sectional view of the present embodiment. The tenth figure shows a perspective cross-sectional view of the present embodiment. The eleventh figure shows a schematic diagram of the use of the manual control clutch in the present embodiment. The twelfth figure shows a schematic diagram of the use of the pneumatic control clutch in the present embodiment.

20‧‧‧Power winch

22‧‧‧Deceleration device

24‧‧‧ clutch device

241‧‧‧Handle

2463‧‧‧ Inlet

2464‧‧‧Pneumatic connector

2468‧‧‧Muffler

2469‧‧‧Net body

247‧‧‧Connecting parts

Claims (2)

The utility model relates to a pneumatic winch and a manual clutch device for a power winch. The power winch has a motor, and the power of the motor is driven by an internal shaft drive to drive a speed reducer, and the speed reducer drives a cable wheel to rotate after passing through a plurality of planetary gear sets. The steel wire wound around the cable wheel can be used for releasing or retracting. The speed reducing device has a speed reducing box, and the inner side of the speed reducing box is provided with an inner ring tooth that can be interlocked with the speed reducing device, and the inner ring tooth is externally a plurality of brake grooves are arranged on the ring surface, a top surface of the reduction gear box is provided with a groove corresponding to the brake groove, and a clutch device is mounted on the groove, the clutch device has a clutch lever, the clutch The bottom end of the rod may correspond to one of the brake grooves through the through slot, the clutch lever is connected upwardly to a handle, and the handle is manually operated to be lowered or raised to be movable to bring the bottom end of the clutch rod into or out of one of the brake grooves The latching device is connected or disconnected between the speed reducing device and the transmission of the cable wheel; the clutch device is further capable of entering the clutch device via air pumping, and is lifted by air pressure. Departing from the bottom end of the trip lever of a brake in which the engaging recess, so that the joint means is disconnected from the reduction of the transmission between the cable pulley. According to the air pressure and manual clutch device of the power winch according to claim 1, the clutch device has a lower seat, a clutch lever, an upper seat and a handle, wherein the lower base and the reducer Through the slot joint, the lower base body has a longitudinal groove extending longitudinally, and a positioning wall is formed at the upper portion, and a ring groove is opened at the upper portion and is inserted into an O-ring; the clutch rod is inserted into the through groove of the lower seat body. a ring groove is formed in the lower part of the clutch rod and is encircled into an O-ring to be closely attached to the inner wall of the groove. The clutch rod extends upward to form a large disk segment, and a ring groove is formed around the clutch rod and is circled therein An O-ring extends upward to reduce the diameter, and a micro-groove is formed in the peripheral wall of the top section and is encircled into an O-ring. Finally, an engaging groove is formed inwardly downward, and an elastic member is sleeved from top to bottom. The bottom end of the elastic member is disposed above the large disk segment; the bottom portion of the upper body is hollowed inwardly, the bottom end and the lower seat body are joined to the positioning wall, and the lower seat is pressed The O-ring of the body forms a close contact, and the upper wall corresponds to the inner wall when the upper body extends upward Closing the large disc segment of the rod and pressing the O-ring around the large disc segment to form a close contact, and forming a lower air chamber below the large disc segment and the lower seat, the clutch lever and the upper seat, the upper seat An air inlet is extended to the outside of the body corresponding to the lower air chamber for locking a pneumatic joint, and the upper body extends upwardly and upwardly to form a continuous groove for the top end of the clutch rod to protrude. The peripheral wall of the upper body and the O-ring on the peripheral wall of the top portion of the clutch rod form a close contact, and the top end of the elastic member abuts against the inner top wall of the upper seat, the upper seat and the clutch rod and the large circle Forming an upper air chamber between the disc segments, the upper seat body opening an air passage on the peripheral wall, the upper air chamber is connected to the outside, a muffler is locked to the outside of the air passage, and a mesh body is connected to the front end of the silencer; A through slot is defined in the top of the handle, and the bottom seat covers the upper seat body, and the connecting seat is inserted from the top through the through slot to engage with the engaging slot of the clutch lever.