A clutch winch reset structure

Abstract

The utility model relates to the technical field of clutch winches, a clutch winch reset structure, including a winch bracket, a motor, a gear box, at least two sets of planetary gear sets, a transmission shaft and a knob assembly; an elastic reset assembly is arranged between the transmission shaft and the motor; the right end of the transmission shaft is connected to the rightmost planetary gear set; a one-way bearing is sleeved in the middle of the right end face of the rightmost planetary gear set; a reset drive is fixedly sleeved on the one-way bearing; at least one reset protrusion is arranged on the reset drive; a push fork block is arranged between the reset drive and the gear box, and the push fork block abuts against the right end of the transmission shaft through the elastic reset assembly; the knob assembly is used to drive the push fork block to rotate. The advantage of the utility model is that the device realizes the automatic reset of the clutch winch to the closed state, and there is no need to manually dial back the knob assembly, which is convenient and quick to use, saves time and effort, and improves the user's feeling of use.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch winches, in particular to a clutch winch resetting structure. Background Art

[0002] The existing clutch winches all achieve the clutch between the winch drum and the planetary gear by manually rotating the toggle switch back and forth. During use, the user first turns the knob to the disengaged state, so that the spline on the transmission shaft is separated from the planetary gear, thereby separating the winch drum on the spline from the planetary gear, and then the winch can be put into an idling state. This makes it convenient to pull out the rope and fix it in the specified position. The user also needs to return to the winch and turn the switch back to the engaged state, so that the spline on the transmission shaft is meshed with the planetary gear, thereby cooperating with the winch drum on the spline and the planetary gear transmission, so that the winch can output power.

[0003] During use, after the rope is fixed, it is necessary to return to the winch and then manually turn the switch to make the winch motor rotate normally. This requires the user to manually adjust back and forth, which is troublesome to use and affects the user's experience. Utility Model Content

[0004] The utility model aims to solve the technical problem that the existing clutch winch needs to manually turn the switch back to the engaged state, which is cumbersome and inconvenient to operate. The utility model provides a clutch winch resetting structure which can directly rotate the planetary gear through a motor, and drive the switch back to the engaged state through the planetary gear, so that the planetary gear drives the winch drum to output power. The user does not need to go back to the winch to manually turn the switch back. The use is convenient and fast, saves time and effort, and greatly improves the user experience.

[0005] For the purpose of this utility model, the following technical solutions are adopted:

[0006] A clutch winch reset structure comprises a winch bracket, a motor, a gear box, at least two sets of planetary gear sets, a transmission shaft and a knob assembly; the motor and the gear box are respectively arranged on the left and right sides of the winch bracket, the planetary gear set is installed in the gear box, and the two ends of the transmission shaft are respectively connected to the motor and the planetary gear set; the left end of the transmission shaft cooperates with the motor for circumferential transmission, and the transmission shaft is axially movable and connected to the motor; an elastic reset assembly is arranged between the transmission shaft and the motor; the elastic reset assembly has a tendency to move the transmission shaft axially to the right; the right end of the transmission shaft is transmission-connected to the rightmost planetary gear set; a one-way bearing is fixedly sleeved in the middle of the right side plate of the planet on the rightmost planetary gear set, and a reset drive member is fixedly sleeved on the one-way bearing, And the reset drive member realizes one-way transmission through a one-way bearing; at least one reset protrusion is circumferentially arranged on the reset drive member; a pushing fork block for driving the transmission shaft to move axially is arranged between the reset drive member and the gear box; the pushing fork block abuts against the right end of the transmission shaft through an elastic reset component, and a fork rod is circumferentially arranged on the pushing fork block for transmission cooperation with the reset protrusion, and under the transmission cooperation between the reset protrusion and the fork rod and the action of the elastic reset component, the transmission shaft pushes the pushing fork block axially to the right and resets; the knob assembly is rotationally connected to the gear box, and the knob assembly is transmission-connected to the pushing fork block, the knob assembly is used to drive the pushing fork block to rotate, and the pushing fork block pushes the transmission shaft axially to the left. The structure can manually push the transmission shaft to the left by rotating the knob assembly, and put the elastic reset assembly in a compressed state. When the winch needs to work, the transmission shaft is driven to rotate by rotating the motor, so that the transmission shaft drives the right side plate of the planetary gear set on the planetary gear set to drive the one-way bearing to rotate, so that the one-way bearing drives the reset drive member to rotate in one direction, and makes the reset protrusion on the reset drive member press against the fork rod on the pushing fork block, and finally drives the knob assembly back to its original state by pushing the fork block, and through the restoring force of the elastic reset assembly, the transmission shaft is pushed out to the right, so that the winch drum is meshed with the planetary gear set for transmission cooperation, thereby realizing automatic reset of the clutch winch, and there is no need to manually turn back the knob assembly. It is convenient and quick to use, saving time and effort, and And it greatly improves the user experience; and through the one-way bearing, one-way idling can be achieved between the reset drive member and the right side plate of the planet, so that when the right side plate of the planet rotates counterclockwise, it can drive the reset drive member to rotate, and when the right side plate of the planet rotates clockwise, it can form one-way idling with the reset drive member, so that when the right side plate of the planet is pressed and pushed in, after the right side plate of the planet is driven by the motor to rotate clockwise, it will not drive the reset drive member to rotate, and then the reset protrusion and the pushing fork block will not collide during the rotation process, and finally prevent the reset protrusion on the reset drive member from colliding with the pushing fork block by mistake when the capstan is in the closed state, causing wear or damage, thereby further improving the integrity, safety and service life of the entire structure.

[0007] Preferably, a plurality of radial drive inclined surfaces are arranged in the circumferential direction in the gear box; the right end of each fork rod abuts against the corresponding radial drive inclined surface; the knob assembly is transmission-connected with the push fork block, and the knob assembly is used to drive the push fork block to rotate, and make the push fork block axially push the transmission shaft along the trajectory of the radial drive inclined surface. The fork rod rotates along the radial drive inclined surface, so that the axial back-and-forth movement can be achieved under the action of the radial drive inclined surface.

[0008] Preferably, a first positioning portion and a second positioning portion for sliding positioning of the fork rod are respectively provided at both ends of the radial drive bevel; the radial drive bevel comprises a horizontal separation section from shallow to deep, an inclined transition section and a horizontal meshing section; the first positioning portion is an axially protruding positioning boss; the first positioning portion is arranged on the separation section away from the transition section; in the separated state, the fork rod is located on the separation section, and is limited at the first positioning portion; the second positioning portion is an axially protruding positioning boss; the second positioning portion is arranged on the meshing section away from the transition section; in the engaged state, the fork rod is located on the meshing section, and is limited at the second positioning portion.

[0009] Preferably, the reset driver is provided with an axial screw hole that penetrates axially; a connecting screw is fixedly connected to the reset driver through the axial screw hole, and the right end of the connecting screw protrudes axially from the reset driver to form the reset protrusion. The axial protrusion is achieved by the connecting screw, which is convenient for disassembly, assembly and maintenance.

[0010] Preferably, the knob assembly includes a positioning sleeve and a rotating dial; the positioning sleeve is arranged at the right end of the transmission shaft, and the positioning sleeve is fixedly connected to the inner wall of the gear box; the positioning sleeve wraps the reset protrusion inside, and a plurality of arc-shaped sliding holes penetrating axially are arranged on the positioning sleeve along the circumferential direction; each reset protrusion is located in the area corresponding to each arc-shaped sliding hole; the pushing fork block is arranged coaxially with the transmission shaft, and the left side wall of the pushing fork block abuts against the right end of the transmission shaft; each fork rod slides in each arc-shaped sliding hole, and the end of the fork rod is in transmission cooperation with the reset protrusion; the rotating dial is connected to the gear box, and the rotating dial is connected to the pushing fork block and drives the pushing fork block to rotate. The sliding trajectory can be determined by the arc-shaped sliding hole on the positioning sleeve, so that the fork rod can be stably slid back and forth in the arc-shaped sliding hole, and the pushing fork block can be driven to rotate by rotating the dial wheel to realize manual separation.

[0011] Preferably, a fork piece installation cavity for pushing the fork block to move axially is provided in the middle of the rotating dial wheel; a fork rod groove distributed along the axial direction is provided on the outer peripheral wall of the rotating dial wheel, and the fork rod is engaged in the fork rod groove, so that the rotating dial wheel and the pushing fork block can realize synchronous rotation, and the fork rod moves along the radial driving inclined surface to make the pushing fork block move axially in the fork piece installation cavity. The fork rod groove can ensure that the pushing fork block is driven to rotate, and the fork piece installation cavity can also ensure that the pushing fork block can realize axial movement, so as to facilitate the automatic clutch of the capstan.

[0012] Preferably, the knob assembly further comprises a rotary switch; a positioning slot is provided on the right end face of the rotary dial; a positioning block is provided on the rotary switch; the positioning block is connected to the positioning slot, and the rotary switch is fixedly connected to the rotary dial by screws, and the rotary switch is rotatably connected to the right side wall of the gear box. The rotary switch can be convenient for users to switch, which is more labor-saving and convenient to use.

[0013] Preferably, the elastic reset assembly includes a coupling sleeve, a spring and a spring positioning snap ring; the left end of the coupling sleeve is connected to the output shaft of the motor, and the right end of the coupling sleeve is provided with a hexagonal socket; the transmission shaft is axially movable and connected in the hexagonal socket; the spring positioning snap ring is fixedly clamped on the transmission shaft; the spring sleeve is provided on the transmission shaft, and the left end of the spring abuts against the right end surface of the coupling sleeve, and the right end of the spring abuts against the spring positioning snap ring. The spring positioning snap ring and the coupling sleeve facilitate the positioning of the two ends of the spring, and at the same time, it can ensure that the axial movement of the transmission shaft is achieved under the action of the spring.

[0014] Preferably, three sets of planetary gear sets are arranged in the gearbox; a spline sleeve is connected to the rotating sleeve of the middle section of the transmission shaft; the spline sleeve is matched with the planetary gear set on the far left, and in the disengaged state, the spline sleeve is separated from the spline groove in the center of the planetary gear set on the far left; in the engaged state, the spline sleeve is meshed with the spline groove in the center of the planetary gear set on the far left; spline positioning grooves are arranged on both sides of the spline sleeve on the transmission shaft; a spline positioning snap ring is fixedly connected to the spline positioning groove; the left and right end faces of the spline sleeve are respectively against the end faces of the two spline positioning snap rings. The spline sleeve facilitates the clutching with the planetary gear set, and the spline positioning snap ring facilitates the better positioning of the spline sleeve, which can ensure that the axial displacement does not occur when the spline sleeve rotates.

[0015] Preferably, it also includes a winch drum; the winch drum is rotatably connected to the capstan bracket and is sleeved outside the transmission shaft, and a spline matching through hole is provided at the right end of the winch drum; the spline sleeve is axially movable and connected in the spline matching through hole, and the spline sleeve drives the winch drum to rotate synchronously.

[0016] To sum up, the advantage of the utility model is that the structure can manually push the transmission shaft to the left by rotating the knob assembly, and put the elastic reset assembly in a compressed state. When the winch needs to work, the transmission shaft is driven to rotate by rotating the motor, so that the transmission shaft drives the planetary right side plate on the planetary gear set to drive the one-way bearing to rotate, so that the one-way bearing drives the reset drive member to rotate one-way, and the reset protrusion on the reset drive member is pressed against the fork rod on the pushing fork block, and finally the knob assembly is driven back to the original state by pushing the fork block, and the restoring force of the elastic reset assembly is used to push the transmission shaft to the right, so that the winch drum is meshed with the planetary gear set for transmission cooperation, thereby realizing automatic reset of the clutch winch, and there is no need to manually turn back the knob assembly, which is convenient and quick to use. , saving time and effort, and greatly improving the user experience; and through the one-way bearing, one-way idling can be achieved between the reset drive member and the right side plate of the planet, so that when the right side plate of the planet rotates counterclockwise, it can drive the reset drive member to rotate, and when the right side plate of the planet rotates clockwise, it can form a one-way idling with the reset drive member, so that when the right side plate of the planet is pressed and pushed in, after the right side plate of the planet is driven by the motor to rotate clockwise, it will not drive the reset drive member to rotate, and then the reset protrusion and the pushing fork block will not collide during the rotation process, and finally prevent the reset protrusion on the reset drive member from colliding with the pushing fork block by mistake when the capstan is in the closed state, causing wear or damage, thereby further improving the integrity, safety and service life of the entire structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the device of the clutch winch resetting structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the device of the transmission shaft in the utility model.

[0019] Figure 3 It is a schematic diagram of the device of the elastic connection component and the spline sleeve in the utility model.

[0020] Figure 4 It is a cross-sectional view of the knob assembly in the utility model.

[0021] Figure 5 It is a schematic diagram of the device of the knob assembly in the utility model.

[0022] Figure 6 It is a schematic diagram of the device inside the knob assembly of the utility model.

[0023] Figure 7 It is a schematic diagram of the device inside the end cover of the utility model.

[0024] Figure 8 It is an exploded view of the knob assembly of the present invention from the left side perspective.

[0025] Fig. 9 It is an exploded view of the knob assembly of the utility model from the right side perspective.

[0026] Among them: 1. Winch bracket; 2. Motor; 3. Planetary gear housing; 4. Planetary gear set; 40. Planetary right side plate; 41. Spline groove; 5. Transmission shaft; 50. Elastic reset assembly; 501. Coupling sleeve; 502. Spring; 503. Spring positioning snap ring; 504. Hexagonal socket; 51. Spline sleeve; 511. Spline positioning slot; 512. Spline positioning snap ring; 52. One-way bearing; 53. Reset drive member; 531. Reset protrusion; 55. Connecting screw; 6. End cover; 61. Radial drive bevel; 611, separation section; 612, transition section; 613, engagement section; 614, first positioning portion; 615, second positioning portion; 7, knob assembly; 71, positioning sleeve; 711, arc-shaped sliding hole; 72, pushing fork block; 721, fork rod; 7211, radial portion; 7212, axial portion; 73, rotating dial; 730, fork blade mounting cavity; 731, fork rod groove; 732, positioning card slot; 74, rotary switch; 741, positioning card block; 75, switch screw; 8, winch cylinder; 81, spline matching through hole. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 9As shown, a clutch winch reset structure includes a winch bracket 1, a motor 2, a gear box, at least two sets of planetary gear sets 4, a transmission shaft 5 and a knob assembly 7. The gear box can be integrally formed or divided into a planetary gear housing 3 and an end cover 6. In this embodiment, a detachably connected planetary gear housing 3 and an end cover 6 are used to facilitate installation and maintenance. The winch bracket 1 is formed by connecting the support plates on the left and right sides and multiple horizontal connecting rods in the middle. The motor 2 and the planetary gear housing 3 are respectively arranged on the left and right sides of the winch bracket 1, the planetary gear set 4 is installed in the planetary gear housing 3, and the two ends of the transmission shaft 5 are respectively connected to the motor 2 and the planetary gear set 4; the end cover 6 is fixedly connected to the right side of the planetary gear housing 3 by the end cover connecting screws, and the planetary gear housing 3 is closed. The knob assembly 7 is rotatably connected to the right side of the end cover 6; the left end of the transmission shaft 5 is matched with the motor 2 for circumferential transmission, and the transmission shaft 5 is matched with the motor 2 for axial movement; an elastic reset assembly 50 is arranged between the transmission shaft 5 and the motor 2; the elastic reset assembly 50 has a tendency to make the transmission shaft 5 move axially to the right; when the elastic reset assembly 50 is compressed, it is in a separated state, and when the elastic reset assembly 50 is in a normal state, it is in a meshed state. The right end of the transmission shaft 5 is connected to the planetary gear set 4 on the far right; the middle part of the planetary right side plate 40 in the planetary gear set 4 on the far right is fixedly sleeved with a one-way bearing 52, and a reset driving member 53 is fixedly sleeved on the one-way bearing 52. Through the internal rotating structure of the one-way bearing 52 itself, the reset driving member 53 can realize idling when rotating clockwise, and the reset driving member 53 can rotate synchronously with the planetary right side plate 40 when rotating counterclockwise. The reset driving member 53 is a hollow turntable structure, and a plurality of reset protrusions 531 are arranged circumferentially on the upper edge of the right end surface of the reset driving member 53. The one-way bearing 52 can realize one-way idling between the reset drive member 53 and the planetary right side plate 40, so that the planetary right side plate 40 can drive the reset drive member 53 to rotate when it rotates counterclockwise, and can form one-way idling between the reset drive member 53 when the planetary right side plate 40 rotates clockwise, so that when the planetary right side plate 40 is pressed and pushed in, after the motor 2 drives the planetary right side plate 40 to rotate clockwise, it will not drive the reset drive member 53 to rotate, and then the reset protrusion 531 will not collide with the push fork block 72 during the rotation process, and finally prevent the reset protrusion 531 on the reset drive member 53 from colliding with the push fork block 72 when the capstan is in the closed state by mistake. The situation of wear or damage is further improved, and the integrity, safety and service life of the entire structure. The reset drive member 53 is provided with an axial screw hole that runs axially through; a connecting screw 55 is fixedly connected through the axial screw hole, and the right end of the connecting screw 55 axially protrudes from the reset drive member 53 to form a reset protrusion 531. The axial protrusion is achieved by connecting the screws 55, and at the same time it is convenient for disassembly, assembly and maintenance.A pushing fork block 72 for driving the transmission shaft 5 to move axially is arranged between the reset driving member 53 and the end cover 6; the pushing fork block 72 abuts against the right end of the transmission shaft 5 through the elastic reset assembly 50, and a plurality of fork rods 721 for transmission cooperation with the reset protrusion 531 are arranged circumferentially on the pushing fork block 72, and a plurality of radial driving inclined surfaces 61 are arranged circumferentially inside the end cover 6; the right end of each fork rod 721 abuts against the corresponding radial driving inclined surface 61, and the two ends of the radial driving inclined surface 61 are respectively provided with a first positioning portion 614 and a second positioning portion 615 for sliding positioning of the fork rod 721; The over-reset protrusion 531 presses against the fork rod 721 to make the pushing fork block 72 rotate along the radial driving inclined surface 61, and the transmission shaft 5 is reset by moving axially to the right under the action of the elastic reset component 50; thereby, the spline sleeve 51 on the transmission shaft 5 is meshed with the planetary gear set 4, and then the winch drum 8 mounted on the spline sleeve 51 is matched with the planetary gear set 4 for transmission, and finally power output is realized; the knob assembly 7 is transmission-connected with the pushing fork block 72, and the knob assembly 7 is used to drive the pushing fork block 72 to rotate, and make the pushing fork block 72 axially push the transmission shaft 5 along the trajectory of the radial driving inclined surface 61. The device can manually push the transmission shaft 5 to the left by rotating the knob assembly 7, and put the elastic reset assembly 50 in a compressed state. When the winch needs to work, the transmission shaft 5 is driven to rotate by rotating the motor 2, so that the transmission shaft 5 drives the planetary right side plate 40 in the planetary gear set 4 to drive the one-way bearing 52 to rotate, and the one-way bearing 52 drives the reset drive member 53 to rotate, and the reset protrusion 531 on the reset drive member 53 is pressed against the fork rod 721 on the pushing fork block 72, so that the fork rod 721 rotates along the radial driving inclined surface 61, and finally the knob assembly 7 is driven back to its original state by pushing the fork block 72, and the restoring force of the elastic reset assembly 50 is used to make the winch drum 8 mesh with the leftmost planetary gear set 4, thereby realizing automatic reset of the clutch winch, and there is no need to manually turn back the knob assembly 7. It is convenient and quick to use, saves time and effort, and greatly improves the user experience.

[0029] like Figure 7 and Figure 8 As shown, the radial driving slope 61 includes a horizontal separation section 611 from shallow to deep, an inclined transition section 612 and a horizontal meshing section 613; the first positioning portion 614 is an axially protruding positioning boss; the first positioning portion 614 is arranged on the separation section 611 away from the transition section 612; in the separated state, the fork rod 721 is located on the separation section 611, and is limited at the first positioning portion 614; the second positioning portion 615 is an axially protruding positioning boss; the second positioning portion 615 is arranged on the meshing section 613 away from the transition section 612; in the engaged state, the fork rod 721 is located on the meshing section 613, and is limited at the second positioning portion 615.

[0030] like Figures 4 to 9As shown, the knob assembly 7 includes a positioning sleeve 71 and a rotating dial 73; the positioning sleeve 71 is sleeved on the right end of the transmission shaft 5, and the positioning sleeve 71 is fixedly connected to the inner wall of the end cover 6; relative fixation is achieved by matching three equally spaced axially distributed snap-ons on the positioning sleeve 71 with three equally spaced circumferentially distributed blocks on the inner wall of the end cover 6. The positioning sleeve 71 wraps the reset protrusion 531, and a plurality of arc-shaped sliding holes 711 are circumferentially arranged on the positioning sleeve 71, each reset protrusion 531 is located in the area corresponding to each arc-shaped sliding hole 711; the pushing fork block 72 is coaxially arranged with the transmission shaft 5, and the left side wall of the pushing fork block 72 abuts against the right end of the transmission shaft 5; each fork rod 721 is slidably fitted in each arc-shaped sliding hole 711, and the end of the fork rod 721 is transmission-matched with the reset protrusion 531; the rotating dial 73 is connected to the end cover 6, and the rotating dial 73 is connected to the pushing fork block 72, and drives the pushing fork block 72 to rotate. The sliding trajectory can be determined by the arc-shaped sliding hole 711 on the positioning sleeve 71, so that the fork rod 721 can be stabilized in the arc-shaped sliding hole 711 to slide back and forth, and the pushing fork block 72 can be driven to rotate by rotating the dial 73 to achieve manual separation. A fork installation cavity 730 for pushing the fork block 72 to move axially is provided in the middle of the rotating dial wheel 73; a fork rod groove 731 distributed along the axial direction is provided on the outer peripheral wall of the rotating dial wheel 73, and the fork rod 721 is snap-fitted in the fork rod groove 731, so that the rotating dial wheel 73 and the pushing fork block 72 can achieve synchronous rotation, and the fork rod 721 moves along the radial driving inclined surface 61 to push the fork block 72 to move axially in the fork installation cavity 730.

[0031] like Figures 4 to 9 As shown, three arc-shaped sliding holes 711 are arranged at equal intervals along the circumference on the positioning sleeve 71; three reset protrusions 531 are arranged at equal intervals along the circumference on the right end surface of the reset driving member 53; three L-shaped fork rods 721 are arranged at equal intervals along the circumference on the pushing fork block 72; three radial driving inclined surfaces 61 matching with the fork rod 721 are arranged at equal intervals along the circumference on the end cover 6; three fork rod grooves 731 are arranged at equal intervals along the circumference on the rotating dial wheel 73; the radial portion 7211 of the fork rod 721 is plugged and matched with the fork rod groove 731, and the axial portion 7212 of the fork rod 721 is axially inserted into the arc-shaped sliding hole 711, the first positioning portion 614 is located between two adjacent radial driving inclined surfaces 61, and the second positioning portion 615 is located between two adjacent radial driving inclined surfaces 61. By arranging three in the circumference, the stability and coaxiality of rotation can be guaranteed, and the rotation matching degree and transmission accuracy can be ensured.

[0032] like Figures 4 to 9As shown, the knob assembly 7 also includes a rotary switch 74; a positioning slot 732 is provided on the right end face of the rotary dial 73; a positioning block 741 is provided on the rotary switch 74; the positioning block 741 is snapped into the positioning slot 732, and the rotary switch 74 is fixedly connected to the rotary dial 73 through a switch screw 75, and the rotary switch 74 is rotatably connected to the right side wall of the end cover 6.

[0033] like Figure 2 and Figure 3 As shown, the elastic reset assembly 50 includes a coupling sleeve 501, a spring 502 and a spring positioning snap ring 503; the left end of the coupling sleeve 501 is connected to the output shaft of the motor 2, and the right end of the coupling sleeve 501 is provided with a hexagonal socket 504; the transmission shaft 5 is axially movable and connected in the hexagonal socket 504; the spring positioning snap ring 503 is fixedly clamped on the transmission shaft 5; the spring 502 is sleeved on the transmission shaft 5, and the left end of the spring 502 abuts on the right end surface of the coupling sleeve 501, and the right end of the spring 502 abuts on the spring positioning snap ring 503. The spring positioning snap ring 503 and the coupling sleeve 501 are convenient for limiting the two ends of the spring 502, and at the same time, it can ensure that the axial movement of the transmission shaft 5 is achieved under the action of the spring 502.

[0034] like Figures 2 to 4 As shown, three sets of planetary gear sets 4 are arranged in the planetary gear housing 3; the middle section of the transmission shaft 5 is rotatably sleeved with a spline sleeve 51; the spline sleeve 51 is in transmission cooperation with the planetary gear set 4 on the far left, and in the disengaged state, the spline sleeve 51 is separated from the spline groove 41 at the center of the planetary gear set 4 on the far left; in the engaged state, the spline sleeve 51 is meshed with the spline groove 41 at the center of the planetary gear set 4 on the far left; the right end of the transmission shaft 5 is connected to and passes through the planetary gear set 4 on the far right; spline positioning grooves 511 are arranged on the left and right sides of the spline sleeve 51 on the transmission shaft 5; a spline positioning snap ring 512 is fixedly sleeved on the spline positioning groove 511; the left and right end faces of the spline sleeve 51 are respectively against the end faces of the two spline positioning snap rings 512. The spline sleeve 51 is convenient for realizing the clutch with the planetary gear set 4, and the spline positioning snap ring 512 is convenient for better limiting the spline sleeve 51, so as to ensure that the spline sleeve 51 does not cause axial displacement while rotating.

[0035] like Figures 1 to 3As shown, it also includes a winch drum 8; the winch drum 8 is rotatably connected to the capstan bracket 1 and sleeved outside the transmission shaft 5, and a spline matching through hole 81 is provided at the right end of the winch drum 8; the spline sleeve 51 is axially movable and connected in the spline matching through hole 81, and the spline sleeve 51 drives the winch drum 8 to rotate synchronously. The spline sleeve 51 always drives the winch drum 8 to rotate. In the closed state, the left side of the spline sleeve 51 is located in the spline matching through hole 81, and the right side of the spline sleeve 51 is meshed with the spline groove 41 at the center of the planetary gear set 4. In the disengaged state, the right side of the entire spline sleeve 51 is away from the spline groove 41 and moves toward the spline matching through hole 81, so that the entire spline sleeve 51 is located in the spline matching through hole 81.

[0036] When in use, first turn the rotary switch 74 on the knob assembly 7 clockwise, so that the rotary switch 74 drives the rotary dial wheel 73 to rotate, and the rotary dial wheel 73 drives the fork rod 721 on the pushing fork block 72 to slide from the meshing section 613 to the separation section 611 along the radial driving inclined surface 61 under the limit of the arc-shaped sliding hole 711. During the sliding process, due to the height difference, the pushing fork block 72 is pushed leftward, so that the pushing fork block 72 is transmitted to the transmission shaft 5, thereby pushing the transmission shaft 5 to the left, so that the spline sleeve 51 on the transmission shaft 5 is separated from the spline groove 41 in the center of the planetary gear set 4, and then the winch drum 8 sleeved on the spline sleeve 51 is separated from the center of the leftmost planetary gear set 4, and the planetary gear set 4 cannot transmit to the winch drum 8, and finally the winch drum 8 is realized to idle, so that the user can pull out the rope on the winch and hang it on the tree or pole at the original location;

[0037] After the rope is fixed, the motor 2 is directly driven counterclockwise by remote control, and the transmission shaft 5 is driven counterclockwise by the driving motor 2, so that the transmission shaft 5 drives the planetary right side plate 40 on the rightmost planetary gear set 4 to rotate, and then the one-way bearing 52 of the planetary right side plate 40 drives the reset driving member 53 to rotate, so that the reset driving member 53 also rotates synchronously counterclockwise, and the reset protrusion 531 on the right side of the reset driving member 53 pushes against the fork rod 721 on the fork block 72, thereby driving the fork rod 721 to rotate counterclockwise, and And under the limitation of the arc-shaped sliding hole 711, it slides along the radial driving inclined surface 61 from the separation section 611 to the meshing section 613. During the sliding process, due to the height difference and the action of the spring 502 in the elastic reset assembly 50, the pushing fork block 72 and the transmission shaft 5 move to the right synchronously, so that the spline sleeve 51 on the transmission shaft 5 is engaged with the spline groove 41 in the center of the planetary gear set 4, so that the planetary gear set 4 on the far left drives the winch drum 8 on the spline sleeve 51 to rotate, and finally realizes the power output of the winch drum 8 to enable the normal operation of the winch.

[0038] To sum up, the advantage of the utility model is that the device can manually push the transmission shaft 5 to the left by rotating the knob assembly 7, and put the elastic reset assembly 50 in a compressed state. When the winch needs to work, the transmission shaft 5 is driven to rotate by rotating the motor 2, so that the transmission shaft 5 drives the one-way bearing 52 on the planetary right side plate 40 in the planetary gear set 4 to rotate, and makes the reset protrusion 531 on the reset drive member 53 press against the fork rod 721 on the pushing fork block 72, so that the fork rod 721 rotates along the radial driving inclined surface 61, and finally drives the knob assembly 7 back to its original state by pushing the fork block 72, and through the restoring force of the elastic reset assembly 50, the transmission shaft 5 is pushed to the right, thereby realizing automatic engagement of the clutch winch, and there is no need to manually turn back the knob assembly 7. It is convenient and quick to use, saves time and effort, and greatly improves the user experience.

[0039] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A clutch winch resetting structure, characterized in that: The invention comprises a winch bracket (1), a motor (2), a gear box, at least two sets of planetary gear sets (4), a transmission shaft (5) and a knob assembly (7); the motor (2) and the gear box are respectively arranged on the left and right sides of the winch bracket (1); the planetary gear set (4) is installed in the gear box; the two ends of the transmission shaft (5) are respectively connected to the motor (2) and the planetary gear set (4); the left end of the transmission shaft (5) is matched with the motor (2) for circumferential transmission, and the transmission shaft (5) is matched with the motor (2) for axial movement. 2); an elastic reset component (50) is arranged between the transmission shaft (5) and the motor (2); the elastic reset component (50) has a tendency to cause the transmission shaft (5) to move axially to the right; the right end of the transmission shaft (5) is transmission-connected to the rightmost planetary gear set (4); a one-way bearing (52) is fixedly sleeved in the middle of the planetary right plate (40) on the rightmost planetary gear set (4), and a reset driving member (53) is fixedly sleeved on the one-way bearing (52), so that the reset driving member (53) One-way transmission is achieved through a one-way bearing (52); at least one reset protrusion (531) is circumferentially arranged on the reset driving member (53); a pushing fork block (72) for driving the transmission shaft (5) to move axially is arranged between the reset driving member (53) and the gear box; the pushing fork block (72) is in contact with the right end of the transmission shaft (5) through an elastic reset component (50), and a fork rod (72) is circumferentially arranged on the pushing fork block (72) for transmission cooperation with the reset protrusion (531). 1), and under the transmission cooperation between the reset protrusion (531) and the fork rod (721) and the action of the elastic reset component (50), the transmission shaft (5) pushes the pushing fork block (72) axially to the right and resets; the knob component (7) is rotationally connected to the gear box, and the knob component (7) is transmission-connected to the pushing fork block (72), and the knob component (7) is used to drive the pushing fork block (72) to rotate, and the pushing fork block (72) pushes the transmission shaft (5) axially to the left.

2. The clutch winch resetting structure according to claim 1, characterized in that: At least one radial driving inclined surface (61) is arranged on the inner wall of the gear box along the circumferential direction; the right end of each fork rod (721) abuts against the corresponding radial driving inclined surface (61); the knob assembly (7) is transmission-connected with the pushing fork block (72); and the knob assembly (7) is used to drive the pushing fork block (72) to rotate, and enables the pushing fork block (72) to axially push the transmission shaft (5) along the trajectory of the radial driving inclined surface (61).

3. The clutch winch resetting structure according to claim 2, characterized in that: The two ends of the radial driving inclined surface (61) are respectively provided with a first positioning portion (614) and a second positioning portion (615) for sliding positioning of the fork rod (721); the radial driving inclined surface (61) comprises a horizontal separation section (611) from shallow to deep, an inclined transition section (612) and a horizontal meshing section (613); the first positioning portion (614) is an axially protruding positioning boss; the first positioning portion (614) is arranged on the separation section (611) away from the fork rod (721). on the side of the transition section (612); in the detached state, the fork rod (721) is located on the separation section (611) and is limited at the first positioning portion (614); the second positioning portion (615) is an axially protruding positioning boss; the second positioning portion (615) is arranged on the meshing section (613) away from the side of the transition section (612); in the engaged state, the fork rod (721) is located on the meshing section (613) and is limited at the second positioning portion (615).

4. The clutch winch resetting structure according to claim 1, characterized in that: The reset driving member (53) is provided with an axial screw hole which penetrates axially; a connecting screw (55) is fixedly connected to the reset driving member (53) through the axial screw hole, and the right end of the connecting screw (55) protrudes axially from the reset driving member (53) to form the reset protrusion (531).

5. The clutch winch resetting structure according to claim 1, characterized in that: The knob assembly (7) comprises a positioning sleeve (71) and a rotating dial (73); the positioning sleeve (71) is sleeved on the right end of the transmission shaft (5), and the positioning sleeve (71) is fixedly connected to the inner wall of the gear box; the positioning sleeve (71) wraps the reset protrusion (531) inside, and the positioning sleeve (71) is provided with a plurality of axially penetrating circular arc sliding holes (711) along the circumferential direction; each reset protrusion (531) is located in a region corresponding to each circular arc sliding hole (711); The pushing fork block (72) is coaxially arranged with the transmission shaft (5), and the left side wall of the pushing fork block (72) abuts against the right end of the transmission shaft (5); each fork rod (721) is slidably fitted in each of the arc-shaped sliding holes (711), and the end of the fork rod (721) is transmission-matched with the reset protrusion (531); the rotating dial (73) is rotatably connected to the gear box, and the rotating dial (73) is connected to the pushing fork block (72) and drives the pushing fork block (72) to rotate.

6. The clutch winch resetting structure according to claim 5, characterized in that: A fork piece installation cavity (730) for pushing the fork block (72) to move axially is arranged in the middle of the rotating dial wheel (73); a fork rod groove (731) distributed along the axial direction is arranged on the outer peripheral wall of the rotating dial wheel (73); the fork rod (721) is snap-fitted into the fork rod groove (731) so that the rotating dial wheel (73) and the pushing fork block (72) can realize synchronous rotation, and the fork rod (721) can move along the radial driving inclined surface (61) so that the pushing fork block (72) can move axially in the fork piece installation cavity (730).

7. The clutch winch resetting structure according to claim 6, characterized in that: The knob assembly (7) further comprises a rotary switch (74); a positioning slot (732) is provided on the right end surface of the rotary dial (73); a positioning block (741) is provided on the rotary switch (74); the positioning block (741) is snapped into the positioning slot (732), and the rotary switch (74) is fixedly connected to the rotary dial (73) by a switch screw (75), and the rotary switch (74) is rotatably connected to the right side wall of the gear box.

8. The clutch winch resetting structure according to claim 1, characterized in that: The elastic reset assembly (50) comprises a coupling sleeve (501), a spring (502) and a spring positioning snap ring (503); the left end of the coupling sleeve (501) is connected to the output shaft of the motor (2), and the right end of the coupling sleeve (501) is provided with a hexagonal socket (504); the transmission shaft (5) is axially movably connected in the hexagonal socket (504); the spring positioning snap ring (503) is fixedly clamped on the transmission shaft (5); the spring (502) is sleeved on the transmission shaft (5), and the left end of the spring (502) abuts against the right end surface of the coupling sleeve (501), and the right end of the spring (502) abuts against the spring positioning snap ring (503).

9. The clutch winch resetting structure according to claim 1, characterized in that: Three sets of planetary gear sets (4) are arranged in the gear box; a spline sleeve (51) is rotatably sleeved on the middle section of the transmission shaft (5); the spline sleeve (51) is in transmission cooperation with the planetary gear set (4) on the leftmost side; in a disengaged state, the spline sleeve (51) is separated from the spline groove (41) at the center of the planetary gear set (4) on the leftmost side; in a engaged state, the spline sleeve (51) is meshed with the spline groove (41) at the center of the planetary gear set (4) on the leftmost side; spline positioning grooves (511) are arranged on the left and right sides of the spline sleeve (51) on the transmission shaft (5); a spline positioning snap ring (512) is fixedly sleeved on the spline positioning groove (511); and the left and right end surfaces of the spline sleeve (51) are respectively abutted against the end surfaces of two spline positioning snap rings (512).

10. The clutch winch resetting structure according to claim 9, characterized in that: The invention also comprises a hoisting drum (8); the hoisting drum (8) is rotatably connected to the capstan bracket (1) and sleeved outside the transmission shaft (5); a spline matching through hole (81) is provided at the right end of the hoisting drum (8); the spline sleeve (51) is axially movable and connected in the spline matching through hole (81), and the spline sleeve (51) drives the hoisting drum (8) to rotate synchronously.

Images