A clutch device and a winch applying the same

Abstract

The present invention discloses a clutch device, characterized in that the clutch device uses hydraulic pressure as a driving force and uses one of the first-stage ring gears of a planetary reducer as a clutch output shaft. Under hydraulic drive, the clutch control of the power transmission is achieved by fixing or floating the ring gear of the planetary reducer. The present invention also discloses a winch using the above-mentioned clutch device, which includes: a frame, a drum, a power input device, a planetary reducer, the clutch device, and a braking device. The drum is transmission-connected to the final planetary carrier of the planetary reducer. The clutch device is arranged on the first-stage ring gear of the planetary reducer and achieves transmission clutch control between the drum and the power input device by floating or fixing the first-stage ring gear. The present invention has the advantages of compact structure, convenient control, and smooth and reliable transition.

Description

Technical Field

[0001] The present invention relates to the technical field of clutch devices, and in particular to a clutch device and a winch using the same. The clutch device uses hydraulic pressure as a driving force to achieve transmission clutch control through the ring gear of a fixed or floating planetary reducer, and is particularly suitable for trailer towing winches with limited space. Background Art

[0002] A winch, also known as a hoist, is a lightweight lifting device that uses a drum wrapped around a wire rope or chain to lift or pull heavy objects. Due to its ease of operation, large rope winding capacity, and ease of mobility, it is widely used for lifting and pulling materials in construction, water conservancy projects, forestry, mining, docks, and other applications. To save time, a clutch device is installed between the winch drum and the drive mechanism when the wire rope needs to be quickly released.

[0003] A clutch is a device that quickly connects or disconnects the prime mover from the working machine, effectively disconnecting or disconnecting the power transmission from the powertrain to the transmission system. It effectively switches the engine power from the powertrain to the working machine. Traditional winches with clutches typically have the clutch mounted on the winch drum or connected to the output of a speed reducer. This results in a significantly increased clutch braking torque, increasing the number of friction plates, springs, and cylinder size. This increases the size of the clutch device, significantly reducing reliability and safety. Summary of the Invention

[0004] In order to solve the problem of oversized winch clutch design in the prior art, the first purpose of the present invention is to provide a clutch device, which uses hydraulics as the driving force and realizes the transmission clutch control between the power mechanism through the ring gear of a fixed or floating planetary reducer. It has the advantages of compact structure, easy operation, and small braking torque.

[0005] In order to achieve the above-mentioned purpose, a technical solution adopted by the present invention is: to provide a clutch device, which is used for transmission clutch control between a power input device and a power output device, and a planetary reducer with N-stage deceleration is arranged between the power input device and the power output device, characterized in that the clutch device includes a clutch power device and uses the i-th stage ring gear of the planetary reducer as the clutch output shaft. The clutch device is driven by the clutch power device and realizes transmission clutch control between the power output device and the power input device by fixing or floating the clutch output shaft, wherein N≥2 and 1≤i≤N.

[0006] Furthermore, the clutch power device includes hydraulic power.

[0007] Furthermore, the planetary reducer is a shaft-rotating planetary reducer, and the power output device is transmission-connected to the Nth-stage planetary carrier of the planetary reducer.

[0008] Furthermore, the clutch device also includes: a clutch cylinder body, a clutch piston, a friction static plate and a friction dynamic plate. A hydraulic chamber is formed inside the clutch cylinder body and is connected to the hydraulic power. The friction dynamic plate is fixedly connected to the clutch output shaft. The hydraulic power acts on the friction static plate through the clutch piston. The friction static plate has a first form in which the friction dynamic plate is loosened under the action of the hydraulic power, and a second form in which the friction dynamic plate is compressed under the action of a clutch spring. When the friction static plate is in the first form, the clutch output shaft floats, thereby disengaging the transmission between the power output device and the power input device. When the friction static plate is in the second form, the clutch output shaft is fixed, thereby connecting the power output device and the power input device through the planetary reducer. The power output device generates torque when driven by the power input device.

[0009] Furthermore, said i=1.

[0010] The second object of the present invention is to provide a winch using the above-mentioned clutch device, which has the advantages of compact structure, small footprint, and remote control. In order to achieve the above-mentioned purpose, a technical solution adopted by the present invention is to provide a winch using the above-mentioned clutch device, characterized in that the winch comprises: a frame, a drum, a power input device, a planetary reducer with N-stage reduction, and the clutch device, the drum is transmission-connected to the N-stage planetary carrier of the planetary reducer, the clutch device uses the i-th stage ring gear of the planetary reducer as the clutch output shaft, and realizes the transmission clutch control between the power input device and the drum by fixing or floating the clutch output shaft, wherein N ≥ 2 and 1 ≤ i ≤ N.

[0011] Furthermore, the power input device includes a hydraulic swing cylinder motor.

[0012] Furthermore, the winch also includes a braking device, which is arranged at the output end of the power input device.

[0013] Furthermore, said i=1.

[0014] The beneficial effects of the present invention are: 1. The step surface of the gear ring can be used to install the clutch device, which occupies a small space and has a simple structure; 2. Hydraulics are used as the driving force for clutch control, which can realize remote control; 3. The braking torque is small; 4. The transmission transition is smooth, which greatly improves the reliability and safety of the clutch device; 5. The overall mechanical structure is reasonable and compact, and easy to assemble. The hydraulic control piston is used to realize braking and clutching actions, which is convenient to operate and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0016] Figure 2 yes Figure 1 A magnified partial view of part A. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings to make the advantages and features of the present invention more easily understood by those skilled in the art, thereby more clearly defining the scope of protection of the present invention. The embodiment of the present invention is a winch with a hydraulic clutch device, which has the advantages of compact space, smooth transition, easy operation, and simple structure.

[0018] See also Figures 1-2 A winch with a hydraulic clutch device according to an embodiment of the present invention comprises: a frame 10, a drum 9, a power input device, a planetary reducer, a clutch device and a braking device.

[0019] The power input device includes a hydraulic swing cylinder motor 1, the output shaft of the hydraulic swing cylinder motor 1 is connected to the first-stage sun gear 8 of the planetary reducer through a spline sleeve 4; the planetary reducer is a shaft-rotating second-stage planetary reducer, and the reel 9 is connected to the second-stage planetary carrier 7 of the planetary reducer through a spline, thereby realizing power transmission from the hydraulic swing cylinder motor 1 to the reel 9.

[0020] The braking device is arranged at the output end of the hydraulic swing cylinder motor 1, including: a brake cylinder body 2, a brake piston 3, a brake friction plate 5 and a brake friction plate 6. After the brake cylinder body 2 is filled with oil, it pushes the brake piston 3 to move, so that the brake friction plate 6 and the brake friction plate 5 are loosened, thereby releasing the braking state. At this time, the hydraulic swing cylinder motor 1 can drive the first-stage sun gear 8 to rotate through the spline sleeve 4 to realize the power input of the winch.

[0021] The clutch device is mounted on the primary ring gear 16 of the planetary reducer. This floating or fixed primary ring gear 16 controls the transmission clutch between the hydraulic swing cylinder motor 1 and the drum 9. Specifically, it includes a clutch housing 15, a clutch cylinder 17, a clutch piston 18, a clutch end cover 19, a clutch friction plate 23, and a clutch friction plate 24. A hydraulic chamber and an oil inlet are formed within the clutch cylinder 17. The clutch friction plate 23 is fixedly connected to the primary ring gear 16, and the clutch friction plate 24 is fixedly connected to the clutch housing 15. The clutch piston 18 exerts axial thrust on the clutch friction plate 24. The principle of the winch's transmission clutch control is as follows:

[0022] State 1 (clutch closed)

[0023] Oil flows into the brake cylinder 2, pushing the brake piston 3 to operate, loosening the brake friction plate 6 and the brake friction plate 5, thereby releasing the braking state of the hydraulic swing cylinder motor 1. At this time, the hydraulic swing cylinder motor 1 works to drive the primary sun gear 8 to rotate through the spline sleeve 4. At the same time, the clutch friction plate 24, under the action of the clutch spring (not shown in the figure), presses the clutch friction plate 23 to fix the primary ring gear 16. At this time, the clutch device is in a closed state, so the primary sun gear 8 can drive the primary planet carrier 21 to rotate through the primary planet gear 20. The primary planet carrier 21 cooperates with the secondary sun gear 13, and the secondary sun gear 13 cooperates with the secondary planet gear 12. Therefore, the primary planet carrier 21 drives the secondary planet carrier 7 to rotate through the secondary sun gear 13 and the secondary planet gear 12 in sequence. The secondary planet carrier 7 then drives the spool 9 to rotate, generating torque.

[0024] State 2 (clutch open)

[0025] Oil is fed into the clutch cylinder 2 through the oil inlet, pushing the clutch piston 3 to move, loosening the clutch friction plate 24 and the clutch friction plate 23, thereby causing the primary ring gear 16 to float. Since the primary ring gear 16 is in a floating state, the secondary planetary carrier 7 and the drum 9 are both in a floating state, disconnecting the power transmission between the drum 9 and the hydraulic swing cylinder motor 1, allowing the drum 9 to move freely, facilitating the rapid removal of the wire rope.

[0026] In another embodiment of the present invention, the clutch device can also be arranged on the secondary ring gear of the planetary reducer. However, by arranging the clutch device on the primary ring gear 16, the clutch torque can be made smaller and the structure can be made more compact.

[0027] The clutch end cover 19 is supported on the step surface of the primary gear ring 16 through a bearing 22 and is fixedly connected to the clutch cylinder body 17 and the clutch housing 15 by bolts. The clutch housing 15 is then fixedly connected to the gear box housing 11 of the planetary reducer through a transition plate 14, and the gear box housing 11 is fixedly connected to the frame 10.

[0028] The clutch device of the present invention, under hydraulic power drive, realizes the clutch control of the winch through the gear ring of a fixed or floating planetary reducer, can make the transmission transition smooth and reliable, and can realize remote control through hydraulics. At the same time, it has the advantages of compact structure, small footprint, simple structure and few components.

[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A clutch device for transmission clutch control between a power input device and a power output device, wherein a planetary reducer with N-stage reduction is provided between the power input device and the power output device, characterized in that: The clutch device includes a clutch power device and uses the i-th stage ring gear of the planetary reducer as a clutch output shaft. The clutch device, driven by the clutch power device, implements transmission clutch control between the power output device and the power input device by fixing or floating the clutch output shaft, wherein N ≥ 2 and 1 ≤ i ≤ N. The clutch power device includes hydraulic power; The clutch device further includes: a clutch cylinder body, a clutch piston, a friction static plate, and a friction dynamic plate. A hydraulic chamber is formed inside the clutch cylinder body and is connected to the hydraulic power. The friction dynamic plate is fixedly connected to the clutch output shaft. The hydraulic power acts on the friction static plate through the clutch piston. The friction static plate has a first state in which the friction dynamic plate is loosened under the action of the hydraulic power, and a second state in which the friction dynamic plate is compressed under the action of a clutch spring. When the friction static plate is in the first state, the clutch output shaft floats, thereby disengaging the transmission between the power output device and the power input device. When the friction static plate is in the second state, the clutch output shaft is fixed, thereby connecting the power output device and the power input device through the planetary reducer. The power output device generates torque when driven by the power input device. The planetary reducer is a shaft-rotating planetary reducer, and the power output device is transmission-connected to the Nth-stage planet carrier of the planetary reducer.

2. A clutch device according to claim 1, characterized in that: Said i=1.

3. A winch using the clutch device according to any one of claims 1 to 2, characterized in that: The winch comprises: a frame, a drum, a power input device, a planetary reducer with N-stage reduction, and the clutch device. The drum is transmission-connected to the N-stage planetary carrier of the planetary reducer. The clutch device uses the i-th stage ring gear of the planetary reducer as a clutch output shaft and realizes transmission clutch control between the power input device and the drum by fixing or floating the clutch output shaft, wherein N≥2 and 1≤i≤N.

4. The winch of the clutch device according to claim 3, characterized in that: The power input device includes a hydraulic swing cylinder motor.

5. The winch of the clutch device according to claim 4, characterized in that: The winch further includes a braking device, which is arranged at the output end of the power input device.

6. The winch of the clutch device according to claim 3, characterized in that: Said i=1.

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