CN113060665A

CN113060665A - Double-speed winch capable of switching on and off

Info

Publication number: CN113060665A
Application number: CN202110447640.7A
Authority: CN
Inventors: 俞芷琳; 戴林吉; 张小彬; 叶岭
Original assignee: Zhejiang Runhua Mechanical & Electrical Co ltd
Current assignee: Zhejiang Runhua Mechanical & Electrical Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-07-02
Anticipated expiration: 2041-04-25
Also published as: CN113060665B

Abstract

The invention discloses a double-speed winch capable of switching on and off, which comprises a motor assembly, a roller and a speed reducer assembly, wherein the roller is arranged between the motor assembly and the speed reducer assembly, the roller is hollow, a hexagonal transmission rod is arranged in the middle of the roller, one end of the hexagonal transmission rod is connected with a brake assembly, the brake assembly is connected with the motor assembly through a coupler, the other end of the hexagonal transmission rod is connected with the speed reducer assembly, and a manual clutch assembly and an electric clutch assembly are arranged in the speed reducer assembly; the electric clutch assembly comprises a first motor and a second motor, a cam is arranged on a motor shaft of the first motor, and the cam can push the first sun gear assembly to move along the direction of the hexagonal transmission rod, so that the speed of the winch can be changed by controlling the positions of the first sun gear assembly and the hexagonal transmission rod; meanwhile, the cam pushes a third retainer ring or a fourth retainer ring on the hexagonal transmission rod to control the clutch state of the winch.

Description

Double-speed winch capable of switching on and off

Technical Field

The invention belongs to the field of electric winches, and particularly relates to a double-speed winch with switchable clutching.

Background

Currently, in the winches in the prior art, the clutch on the winch speed reducer is usually in a manual clutch mode. When a common winch is used for outdoor rescue, a wireless remote controller is usually used for controlling the rope winding and unwinding of the winch when the winch encounters a severe environment. At this time, the winch needs to be started, and the winch on the market basically adopts a manual clutch mode to start or close the clutch, which indicates that when the winch is started, the winch is required to be started, and the clutch is manually operated, so that the winch is inconvenient to use. After the electric clutch is arranged, the clutch can be controlled to be opened or closed through the wireless remote controller, and then an instruction is continuously sent to the remote controller to control the rotation of the winch; the wireless remote controller is used for controlling the winch abroad, but the wireless remote controller has the problem of co-frequency interference, and sometimes the situation that the winch cannot be controlled by the remote controller occurs, and the novel winch still keeps the original mechanical structure of manual clutch and can control the winch to be opened or closed by the manual clutch; the process of rope reeling of the winch is generally slow, and sometimes the situation is urgent, and the winch needs to be quickly reeled out of the use environment. The existing winch works by adopting a speed ratio, and the design of the winch which can be switched between a fast speed and a slow speed can be said to be a great improvement on the rope winding and unwinding of the winch.

Disclosure of Invention

Aiming at the problems in the prior art, the invention designs the double-speed winch with switchable clutching, the winch is additionally provided with the electric clutching device on the basis of the existing winch, the manual clutching device of the original winch is reserved, and the position relation between the sun gear and the planetary gear on the winch speed reducer is controlled through the electric clutching, so that the two states of the clutching and the clutching of the winch are controlled; meanwhile, a hexagonal transmission rod for connecting a motor and a speed reducer in the original winch is improved, and a first-stage sun gear is also improved, so that the electric clutch assembly can control the meshing state between the first-stage sun gear and the first-stage planet gear, and the speed change of the winch is realized.

The invention aims to be realized by the following technical scheme: a double-speed winch capable of switching on and off comprises a motor assembly, a roller and a speed reducer assembly, wherein the motor assembly is connected with the speed reducer assembly through a lifting handle rod, the roller is installed between the motor assembly and the speed reducer assembly, the roller is hollow, a hexagonal transmission rod is arranged in the middle of the roller, one end of the hexagonal transmission rod is connected with a brake assembly, the brake assembly is connected with the motor assembly through a coupler, the other end of the hexagonal transmission rod is connected with the speed reducer assembly, a manual clutch assembly and an electric clutch assembly are arranged in the speed reducer assembly, the electric clutch assembly comprises a first motor and a second motor, a cam is arranged on a motor shaft of the first motor and can push the first sun gear assembly to move along the direction of the hexagonal transmission rod, a gear is arranged on a motor shaft of the second motor, the gear is meshed with the rack, the rack is fixedly connected with the first motor, and the first motor can move along the direction of the rack through the rotation of the gear on the second motor; the first motor is provided with a first motor bracket, the first motor bracket is connected with the armature, the armature is clamped on the first sliding groove in the mounting groove, and the iron core on the mounting groove can attract the armature after being electrified, so that the first motor can be controlled to move along the direction of the hexagonal transmission rod; the hexagonal transmission rod is also provided with a third check ring and a fourth check ring, the third check ring is also provided with a thimble, and the cam can push the third check ring and the fourth check ring in the rotating process, so that the hexagonal transmission rod can be controlled to be at different working positions; the armature is provided with a pulley and a pin shaft, and the pin shaft sequentially penetrates through the armature and the pulley and then clamps the armature in the first chute; a connecting rod is arranged on the armature, a second spring is arranged on the outer layer of the connecting rod, one end of the second spring is connected with the armature, and the other end of the second spring is fixed on the mounting bottom plate; one end of the connecting rod is fixed with the armature, and the other end of the connecting rod is attached to the mounting bottom plate and is not fixed; and the second motor is fixed on the mounting bottom plate through a second motor bracket.

Through setting up electronic clutch assembly, can let the separation and reunion state of capstan winch remove control through wireless remote control, need not the manual separation and reunion of going the operation, remain original manual separation and reunion structure simultaneously, can guarantee that the wireless remote control of capstan winch can be through the manual separation and reunion of going to open or close in the trouble.

Preferably, the cam surface is provided with a first side face, the cam moves between a first retainer ring and a second retainer ring, when the first side face and the first retainer ring are perpendicular to the surface of the hexagonal transmission rod and parallel, the cam is at an initial position, the first side face and the surface of the first retainer ring are mutually attached, the cam can prop against a first-stage sun wheel assembly, the first-stage sun wheel assembly is provided with a first-stage sun wheel, and the first-stage sun wheel is completely meshed with the first-stage planet wheel; the first motor starts to rotate to drive the cam to rotate, and when the first side face is parallel to the horizontal plane and the first side face is above the second side face, the cam is located at a second position; in the process that the cam rotates from the initial position to the second position, the cam pushes the second retainer ring; the second retainer ring can drive the first-stage sun gear to separate from the first-stage planet gear.

The cam can form an initial position and a second position after moving through the rotation of the first motor, and the first retaining ring and the second retaining ring are pushed through the cam, so that the primary sun wheel assembly can also keep two states of the initial position and the second position; simultaneously, go to withstand the surface of first retaining ring or second retaining ring through the cam, can let one-level sun gear subassembly all keep the stationary state when initial position and second position to can let one-level sun gear and the better meshing of one-level planet wheel, the process of meshing all remains stable simultaneously, has realized the reduction gear like this and has switched fast and slow-speed between.

Preferably, the primary sun gear assembly comprises a first retainer ring and a second retainer ring, and the primary sun gear is connected with the first retainer ring through a connecting section.

Preferably, the cam is provided with a circular groove, and a cylindrical magnet is arranged in the circular groove; the magnet is used for sensing a first Hall switch positioned on the surface of a first motor, two first Hall switches with the same specification and model are arranged on the front side of the first motor, one of the first Hall switches is positioned right above a central motor shaft, the other Hall switch is positioned by taking the central motor shaft as a rotating shaft, and the other Hall switch is positioned by rotating the Hall switch positioned right above the motor shaft by 90 degrees anticlockwise; the surface of the second motor is provided with two second Hall switches, a gear connected with a motor shaft of the second motor is also provided with a magnet, the magnet and the second Hall switches on the surface of the second motor are induced, and the positions of the two second Hall switches with the same specification and model are the same as the position of the first Hall switch on the surface of the first motor; one of the Hall switches is positioned right above a motor shaft of the second motor, and the position of the other Hall switch can be obtained by rotating the Hall switch right above by 90 degrees anticlockwise; when all the Hall switches are nearest to the magnet, the circuit of the motor is disconnected, and the motor stops rotating.

Through set up magnet on cam and gear, can let magnet and hall switch respond to. After magnet on the cam and first hall switch responded to, first motor is at the rotation in-process, and when the cam position arrived to nearest with first hall switch, first motor will stall, just so can set up the initial position and the second position of cam, the position of cam just can accurate location like this. Similarly, the second hall switch on the second motor and the magnet on the gear are induced, and also for controlling the rotation of the second motor, the second motor is provided with the gear and the rack, the rack is connected with the first motor, and the position of the first motor can be accurately controlled by controlling the rotation or stop of the second motor.

Preferably, the cam moves from the initial position to the second position to enable the first-stage sun gear to move along the direction of the sixth-stage transmission rod, and the displacement generated by the movement of the first-stage sun gear is the same as the thickness of the first-stage planet gears.

The cam is rotated to enable the first-stage sun gear to move, and when the first-stage sun gear rotates to a second position from an initial position along with the cam, the first-stage sun gear can be just meshed with the first-stage planet gear to be disconnected from the first-stage planet gear, so that the winch is switched from a slow state to a fast state; switching of the capstan from the fast state to the slow state can be achieved when the cam position moves from the second position to the initial position.

Preferably, when the second motor rotates, the first motor moves along the direction of the rack, and the moving stroke is controlled by a second hall switch on the surface of the second motor, so that the first motor can move from a position close to the hexagonal transmission rod to the direction of the mounting groove; the maximum displacement generated by the movement of the first motor along the direction of the rack is necessarily larger than the radius of the first retainer ring; the first retainer ring and the second retainer ring have the same diameter, and the third retainer ring and the fourth retainer ring have the same diameter; the diameter of the first retainer ring is larger than that of the large third retainer ring.

The first motor can be ensured to be far away from the hexagonal transmission rod under the driving of the second motor by reasonably setting the movement displacement of the first motor in the direction of the rack, when the first motor is far away from the hexagonal transmission rod, the first motor keeps static, and when the maximum movement is larger than the radius of the first retainer ring, the cam is rotated again, so that the cam cannot interfere with the first retainer ring or the second retainer ring; the phenomenon that the cam pushes the first-stage sun wheel component in the process of controlling the clutch is avoided, and the phenomenon that the first-stage sun wheel is not meshed with the first-stage planet wheel in place is avoided.

Preferably, rotating the cam switches the capstan between slow and fast speeds when the cam is between the first and second races; when the cam is positioned between the third retaining ring and the fourth retaining ring, the clutch state of the winch can be controlled by rotating the cam; when the first motor is driven by the rack to move away from the hexagonal transmission rod along the direction of the second chute 621, the first motor rotates the cam at the moment and does not interfere with the first retaining ring and the second retaining ring when the first motor moves to the maximum displacement; when the first motor moves to the maximum displacement along the direction of the second sliding chute, the first motor can keep static under the induction of a second Hall switch on the second motor and does not move; the armature is provided with a connecting rod and a second spring, the second spring is initially kept in a stretching state, and the armature is propped against the surface of the mounting bottom plate through the connecting rod; when the coil on the surface of the iron core is electrified, the coil is attracted with the iron core, a second sliding groove is formed in the armature, a sliding block is arranged in the second sliding groove, the sliding block is connected with a first motor support, and the first motor support is fixed with a first motor; when the iron core is electrified and attracted by the armature, the second spring continues to stretch, and one end of the connecting rod is separated from the mounting base plate; the armature can generate displacement in the first sliding groove, so that the cam can be switched back and forth in an interlayer formed between the first retaining ring and the second retaining ring and an interlayer formed between the third retaining ring and the fourth retaining ring.

Through setting up armature and iron core structure, can let the position of first motor switch back and forth at the intermediate layer between first retaining ring and the second retaining ring and the intermediate layer between third retaining ring and the fourth retaining ring to switching each other of reality capstan winch separation and reunion operating condition and capstan winch variable speed operating condition.

Preferably, the hexagonal transmission rod is fixed with the third-stage sun gear, and when the manual clutch assembly works, the third-stage sun gear is disengaged or engaged with the third-stage planet gear by pushing one end of the hexagonal transmission rod, so that the clutch state of the winch is controlled; in the same way, when the cam of the motor winch rotates in the interlayer between the third retaining ring and the fourth retaining ring, the cam can drive the six-stage transmission rod to move, so that the movement of the three-stage sun gear is controlled.

The third retainer ring and the fourth retainer ring are arranged on the hexagonal transmission rod, and the three-stage sun gear and the hexagonal transmission rod are kept fixed, so that the working states of manual clutch and electric clutch cannot interfere with each other.

Preferably, the winch is provided with a control module, the control module is provided with a relay, and the relay is electrically connected with the motor assembly; the control module is also provided with a first motor module and a second motor module, and the first motor module is electrically connected with the first motor and the first Hall switch; the second motor module is electrically connected with the second motor and the second Hall switch; the control module is also provided with a remote controller receiving module for receiving an instruction sent by the wireless remote control handle; and meanwhile, the coil on the iron core is also electrically connected with the control module.

Compared with the prior art, the invention has the following beneficial effects: the double-speed winch with the switchable clutch has a manual clutch and motor clutch integrated structure, and can be controlled to be in clutch through the wireless remote controller, so that a user can conveniently control the winch. Meanwhile, the speed reducer part of the winch is improved, the winch can be switched between slow speed and fast rotation by matching with motor clutch, meanwhile, the cam position on the electric clutch is positioned through the Hall switch, the cam position can be accurately controlled, and therefore the position of the first-level sun gear can be accurately positioned, and therefore the gear alignment in the slow speed and fast switching process can be more accurate.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the half-section of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the electric clutch assembly of the present invention;

FIG. 4 is a schematic view of the electrical clutch assembly of FIG. 3 from another perspective;

FIG. 5 is a schematic view of the configuration of the electric clutch assembly and the planetary gear;

FIG. 6 is a schematic view of the structure of FIG. 5 from another perspective;

FIG. 7 is a schematic view of the initial position of the primary sun gear assembly and the cam;

FIG. 8 is a front view of FIG. 7;

the labels in the figure are: 1. a drum; 2. a retarder assembly; 21. a third planet wheel support; 22. a third planet wheel; 23. a secondary planet wheel support; 24. a secondary planet wheel; 25. a primary planet wheel support; 26. a primary planet wheel; 27. a hexagonal transmission rod; 28. a third-stage sun gear; 29. a first-level nylon cushion; 210. a reducer housing; 3. a motor assembly; 31. a rotor; 32. a carbon brush; 33. a motor housing; 4. a brake assembly; 41. a first coupling; 42. a rectangular spring; 43. a first spring; 44. a second coupling; 5. a manual clutch assembly; 51. a clutch handle; 52. a clutch shaft sleeve; 53. a clutch slide block; 6. an electric clutch assembly; 61. a pulley; 62. a pin shaft; 63. an armature; 64. a slider; 65. a first motor bracket; 66. a first motor; 67. a first Hall switch; 68. a cam; 681. a first side surface; 682. a second side surface; 683. a circular groove; 684. a magnet; 69. a rack; 610. a gear; 611. a second Hall switch; 612. a second motor support; 613. a connecting rod; 614. a second spring; 615. mounting a bottom plate; 616. a second motor; 617. an iron core; 618. installing a groove; 619. a coil; 620. a first chute; 621. a second chute; 7. a handle bar; 8. a sealing cover; 9. a primary sun gear assembly; 91. a first retainer ring; 92. a second retainer ring; 93. a connecting section; 94. a primary sun gear; 10. a third retainer ring; 11. a fourth retainer ring; 12. and (4) a thimble.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings to which:

example 1

As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, the double-speed winch with switchable clutch comprises a motor assembly 3, a roller 1 and a reducer assembly 2, wherein the motor assembly 3 and the reducer assembly 2 are connected through a handle rod 7, the roller 1 is installed between the motor assembly 3 and the reducer assembly 2, the roller 1 is hollow in the middle and is provided with a hexagonal transmission rod 27, one end of the hexagonal transmission rod 27 is connected with a brake assembly 4, and the brake assembly 4 is connected with the motor assembly 3 through a coupler; the brake assembly 4 comprises a first coupler 41, a rectangular spring 42, a first spring 43 and a second coupler 44; the first coupler 41 and the second coupler 44 are matched with each other, and a rectangular spring 42 is arranged between the first coupler 41 and the second coupler 44; a first spring 43 is arranged in the hollow groove of the second coupling 44, and the hexagonal transmission rod 27 penetrates through the hollow groove of the second coupling 44 and extrudes the first spring 43 in the groove; the first shaft connector 41 is connected with the motor component 3; the motor component 3 comprises a rotor 31, a carbon brush 32 and a motor shell 33; the rotor 31 is connected with the first coupler 41, the carbon brush 32 is fixed on the motor shell 33, and the motor shell 33 is connected with the speed reducer assembly 2 through the connecting handle rod 7; when the motor stops rotating, because a displacement difference is formed between the inertial first coupling 41 and the second coupling 44, under the action of the rectangular spring 42, the larger the displacement difference is, the larger the torque between the first coupling 41 and the second coupling 44 is, so that a braking effect is generated; the motor rotor 31 is sequentially connected with the brake assembly 4, the hexagonal transmission rod 27 and the reducer assembly 2, so that the electronic rotor 31 can be decelerated through a planetary wheel assembly in the reducer assembly 2 after running at a high speed; and a three-stage planet wheel support 21 in the speed reducer assembly 2 is meshed with the internal teeth of the roller 1, so that the roller 1 is driven to rotate.

The manual clutch assembly 5 and the electric clutch assembly 6 are arranged in the speed reducer assembly 2, the speed reducer assembly 2 comprises a speed reducer shell 210, a sealing cover 8 is arranged on the reducer shell 210, and a third-stage planet wheel support 21, a second-stage planet wheel support 23 and a first-stage planet wheel support 25 are sequentially arranged in the speed reducer shell 210; the three-stage planet wheel support 21 is provided with three-stage planet wheels 22, the secondary planet wheel support 23 is provided with three secondary planet wheels 24, and the primary planet wheel support 25 is provided with three primary planet wheels 26; the surface of the primary planet wheel 26 is attached to a primary nylon cushion 29, the primary planet wheel 26 is further meshed with a primary sun wheel assembly 9, and the primary sun wheel assembly 9 comprises a first retainer ring 91, a second retainer ring 92, a connecting section 93 and a primary sun wheel 94; the hexagonal transmission rod 27 is provided with a third-stage sun gear 28, a third retainer ring 10 and a fourth retainer ring 11, the third retainer ring 10 is also provided with a thimble 12, and the hexagonal transmission rod 27 is pushed by the manual clutch assembly 5 or the electric clutch assembly 6, so that the third-stage sun gear 28 and the third-stage planet gear 22 can be in two states of engagement and disengagement; when the third-stage planet wheel 22 is meshed with the third-stage sun wheel 28, the thimble 12 on the third retainer ring 10 pushes the second retainer ring 92 on the first-stage sun wheel component 9, so that the first-stage sun wheel 94 and the first-stage planet wheel 26 are also in a meshed state, and the winch clutch is in a closed state; meanwhile, when the tertiary sun gear 28 is disengaged from the tertiary planet gears 22, the winch clutch is in an open state.

The electric clutch assembly 6 comprises a first motor 66, a second motor 616, an armature 63, a core 617 and a mounting groove 618; the first motor 66 is provided with a first motor bracket 65, the first motor bracket 65 is provided with a sliding block 64, and the sliding block 64 and the first motor bracket 65 are integrally clamped in the second sliding groove 621 of the armature 63; the armature 63 is provided with a pulley 61 and a pin 62, and the armature 63 is fixed in the first chute 620 through the pin 62; the iron core 617 is fixed in the mounting groove 618, and a coil 619 is wound on the iron core 617; when the coil 619 is energized, the iron core 617 attracts the armature 63, and the armature 63 moves in the first sliding slot 620 via the pulley 61, so that the armature 63 drives the first motor 66 to move along the hexagonal transmission rod 27; the armature 63 is further provided with a connecting rod 613 and a second spring 614, one end of the second spring 614 is fixed on the surface of the armature 63, and the other end of the second spring 614 is fixed on the mounting base plate 615; one end of the connecting rod 613 is fixed on the surface of the armature 63, and the other end of the connecting rod is propped against the surface of the mounting bottom plate 615 and is not fixedly kept with the mounting bottom plate 615; a cam 68 is arranged on a motor shaft of the first motor 66, and the cam 68 comprises a first side surface 681, a second side surface 682, a circular groove 683 and a magnet 684; when the coil 619 of the core 617 is not energized, the second spring 614 of the armature 63 is initially in a stretched state, the armature 63 abuts against the surface of the mounting base plate 615 by the connecting rod 613, and the armature 63 is closest to the mounting base plate 615, and the first motor 66 is also closest to the mounting base plate 615. The cam 68 on the first motor 66 rotates, and when the first side 681 on the cam 68 is parallel to the surface of the first retainer 91 on the primary sun gear assembly 9 and the first side 681 is attached to the surface of the first retainer 91, the cam 68 is at the initial position; cam 68 continues to rotate, with cam 68 in the second position when side one 681 is parallel to the horizontal and side one 681 is above side two 682; during the process of rotating the cam 68 from the initial position to the second position, the cam 68 pushes the second stop ring 92; the second ring gear 92 drives the primary sun gear 94 off of the primary planet gears 26. A circular groove 683 is arranged on the cam 68, and a cylindrical magnet 684 is arranged in the circular groove 683; the magnet 684 is used for sensing a first hall switch 67 located on the surface of the first motor 66, two first hall switches 67 with the same specification and model are arranged on the front surface of the first motor 66, one of the first hall switches is located right above a central motor shaft, the other hall switch is located by taking the central motor shaft as a rotating shaft, and the other hall switch is located by rotating the hall switch located right above the motor shaft by 90 degrees anticlockwise; the surface of the second motor 616 is provided with two second hall switches 611, a gear 610 connected with a motor shaft of the second motor 616 is also provided with a magnet 684, the magnet 684 and the second hall switches 611 on the surface of the second motor 616 are induced, and the positions of the two second hall switches 611 with the same specification and model are the same as the position of the first hall switch 67 on the surface of the first motor 66; one of the hall switches is located right above a motor shaft of the second motor 616, and the position of the other hall switch can be obtained by rotating the hall switch right above by 90 degrees counterclockwise; when all the Hall switches are nearest to the position of the magnet 684, the circuit of the motor is disconnected, and the motor stops rotating. The cam 68 moves from the initial position to the second position, so that the first-stage sun gear 94 moves along the direction of the sixth-stage transmission rod 27, and the displacement generated by the movement of the first-stage sun gear 94 is the same as the thickness of the first-stage planet gears 26; this arrangement ensures that when the cam 68 is in the initial position, the primary sun gear 94 and the primary planet gear 26 are in mesh with each other, and the speed reducer assembly 2 is in the slow gear state; when the cam 68 is in the second position, the cam 68 pushes the second gear ring 92, so that the first sun gear 94 and the first planet gears 26 are disengaged, and the speed reducer assembly 2 is in the fast gear state. A rack 69 is arranged on the surface of the first motor 66, the rack 69 is meshed with a gear 610, the gear 610 is fixed on a motor shaft of a second motor 616, and the second motor 616 is fixed on a mounting base plate 615 through a second motor bracket 612; the surface of the second motor 616 is provided with a second hall switch 611, and the rotation or disconnection state of the second motor 616 can be controlled by the induction of the second hall switch 611 and the magnet 684 on the gear 610, so that the first motor support 65 connected with the first motor 66 moves in the second sliding groove 621. When the cam 68 of the first motor 66 is located closest to the hexagonal transmission rod 27 during the movement of the first motor 66, the first motor 66 is in the initial state at this time, and when the cam 68 of the first motor 66 is located the maximum distance from the hexagonal transmission rod 27, the first motor 66 is in the end state at this time. The precise position of the first motor 66 can be determined by the open or closed state of the second hall switch 611 on the second motor 616, as the first motor 66 switches from the initial state to the final state. When the first motor 66 is switched from the initial state to the end state, the first motor 66 is at the farthest distance from the hexagonal transmission rod 27 as a whole; then, the coil 619 of the iron core 617 in the mounting groove 618 is energized, and the iron core 617 generates magnetism to attract the armature 63, so as to drive the first motor 66 to move in the first sliding chute 620; the first motor 66 is now positioned furthest from the mounting plate 615, and the cam 68 on the first motor 66 is now positioned just between the third retaining ring 10 and the fourth retaining ring 11; and then the second motor 616 is controlled to work, the cam 68 is close to the hexagonal transmission rod 27, when the cam 68 is positioned closest to the hexagonal transmission rod 27, and then the first motor 66 is rotated, the cam 68 pushes the third retainer 10 and the fourth retainer 11, so as to drive the hexagonal transmission rod 27 to move, and the third-stage sun gear 28 on the hexagonal transmission rod 27 is meshed with or separated from the third-stage planet gear 22, so as to control the clutch state of the winch. The speed reducer shell 210 is also provided with a manual clutch assembly 5, and the manual clutch assembly 5 comprises a clutch handle 51, a clutch shaft sleeve 52 and a clutch slider 53; by rotating the clutch handle 51, the clutch slider 53 pushes the hexagonal transmission rod 27, thereby controlling the clutch state of the winch.

Specifically, the winch is controlled by the transmitter of the wireless remote controller, the winch is powered on and then presses the transmitter to send an instruction to the control module on the winch, the cam 68 of the first motor 66 is made to push the third retainer ring and the fourth retainer ring 11, and the clutch of the winch is made to be closed; at the moment, when an instruction is sent to the wireless remote controller, the winch can normally receive and release the rope; in the operation process, the rotating speed of the winch needs to be changed, the manual clutch handle 51 is firstly rotated to close the clutch of the winch, and then the wireless remote controller sends instructions to the first motor 66 and the second motor 616, so that the cam 68 on the first motor 66 can push the first retainer ring 91 or the second retainer ring 92 on the hexagonal transmission rod 27, the meshing and disengaging state of the first-stage sun gear 94 and the first-stage planet gear 26 is controlled, and the winch is switched between the slow state and the fast state.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A double-speed winch with switchable clutch comprises a motor assembly (3), a roller (1) and a speed reducer assembly (2), and is characterized in that the motor assembly and the speed reducer assembly are connected through a handle rod (7), the roller is installed between the motor assembly and the speed reducer assembly, the roller is hollow, a hexagonal transmission rod (27) is arranged in the middle of the roller, one end of the hexagonal transmission rod is connected with a brake assembly (4), the brake assembly is connected with the motor assembly through a coupler, the other end of the hexagonal transmission rod is connected with the speed reducer assembly, a manual clutch assembly (5) and an electric clutch assembly (6) are arranged in the speed reducer assembly, the electric clutch assembly comprises a first motor (66) and a second motor (616), a cam (68) is arranged on a motor shaft of the first motor, and the cam can push a first sun gear assembly (9) to move along the direction of the hexagonal transmission rod, a gear (610) is arranged on a motor shaft of the second motor (616), the gear is meshed with a rack (69), the rack is fixedly connected with the first motor, and the first motor can move along the direction of the rack through the rotation of the gear on the second motor; the first motor is provided with a first motor bracket (65), the first motor bracket is connected with the armature (63), the armature is clamped on a first sliding groove (620) in the mounting groove (618), and an iron core (617) on the mounting groove attracts the armature after being electrified, so that the first motor can be controlled to move along the direction of the hexagonal transmission rod; the hexagonal transmission rod is also provided with a third retaining ring (10) and a fourth retaining ring (11), the third retaining ring is provided with a thimble (12), and the cam can push the third retaining ring and the fourth retaining ring in the rotating process so as to control the hexagonal transmission rod to be at different working positions; a pulley (61) and a pin shaft (62) are arranged on the armature, the pin shaft sequentially penetrates through the armature and the pulley, and then the armature is clamped in the first sliding groove; a connecting rod (613) is arranged on the armature, a second spring (614) is arranged on the outer layer of the connecting rod, one end of the second spring is connected with the armature, and the other end of the second spring is fixed on the mounting bottom plate (615); one end of the connecting rod is fixed with the armature, and the other end of the connecting rod is attached to the mounting bottom plate and is not fixed; the second motor (616) is fixed on the mounting base plate (615) through a second motor bracket (612).

2. The two-speed winch with switchable clutching as claimed in claim 1, wherein the cam surface is provided with a first side (681), when the cam moves between the first retaining ring (91) and the second retaining ring (92), the first side is parallel to the surface of the first retaining ring perpendicular to the hexagonal transmission rod, when the cam is in the initial position, the first side is attached to the surface of the first retaining ring, the cam abuts against the primary sun gear assembly (9), the primary sun gear assembly is provided with a primary sun gear (94), and when the primary sun gear is completely engaged with the primary planet gear (26); the first motor starts to rotate to drive the cam to rotate, and when the first side face is parallel to the horizontal plane and the first side face is above the second side face (682), the cam is in a second position; in the process that the cam rotates from the initial position to the second position, the cam pushes the second retainer ring; the second retainer ring can drive the first-stage sun gear to separate from the first-stage planet gear.

3. A two-speed winch according to claim 2, characterised in that said primary sun assembly comprises a first collar and a second collar, said primary sun being connected to said first collar by means of a connecting section (93).

4. A two speed winch with switchable clutching as claimed in claim 1 wherein said cam is provided with a circular recess (683) in which is located a cylindrical magnet (684); the magnet is used for sensing a first Hall switch (67) positioned on the surface of the first motor, two first Hall switches with the same specification and model are arranged on the front surface of the first motor, one of the first Hall switches is positioned right above a central motor shaft, the position of the other Hall switch takes the central motor shaft as a rotating shaft, and the other Hall switch is positioned at the position of the other Hall switch by rotating the Hall switch positioned right above the motor shaft by 90 degrees anticlockwise; the surface of the second motor is provided with two second Hall switches (611), a gear connected with a motor shaft of the second motor is also provided with a magnet, the magnet and the second Hall switches on the surface of the second motor are induced, and the positions of the two second Hall switches with the same specification and model are the same as the position of the first Hall switch on the surface of the first motor; one of the Hall switches is positioned right above a motor shaft of the second motor, and the position of the other Hall switch can be obtained by rotating the Hall switch right above by 90 degrees anticlockwise; when all the Hall switches are nearest to the magnet, the circuit of the motor is disconnected, and the motor stops rotating.

5. The two speed winch of claim 1, wherein the cam is moved from the initial position to the second position to move the first sun gear along the sixth drive shaft, wherein the displacement of the first sun gear is the same as the thickness of the first planet gears.

6. The two-speed winch with switchable clutching as claimed in claim 1, wherein when the second motor rotates, the first motor moves along the direction of the rack, and the travel of the movement is controlled by the second hall switch on the surface of the second motor, so that the first motor can move from a position close to the hexagonal transmission rod to the direction of the installation groove; the maximum differential displacement of the first motor moving along the direction of the rack is necessarily larger than the radius of the first retainer ring; the first retainer ring and the second retainer ring have the same diameter, and the third retainer ring and the fourth retainer ring have the same diameter; the diameter of the first retainer ring is larger than that of the large third retainer ring.

7. The two-speed winch of claim 1, wherein when the cam is between the first and second stops, rotating the cam causes the winch to switch between slow and fast speeds; when the cam is positioned between the third retaining ring and the fourth retaining ring, the clutch state of the winch can be controlled by rotating the cam; when the first motor is driven by the rack to be far away from the hexagonal transmission rod along the direction of the second sliding groove (621), and when the first motor moves to the maximum displacement, the first motor rotates the cam, so that the first motor cannot interfere with the first retaining ring and the second retaining ring; when the first motor moves to the maximum displacement along the direction of the second sliding chute, the first motor can keep still under the induction of a second Hall switch on the second motor and does not move any more; the armature is provided with a connecting rod and a second spring, the second spring is initially kept in a stretching state, and the armature is propped against the surface of the mounting bottom plate through the connecting rod; when a coil (619) on the surface of the iron core (617) is communicated, the coil and the iron core are attracted, a second sliding groove is formed in the armature, a sliding block (64) is arranged in the second sliding groove, the sliding block is connected with a first motor support, and the first motor support is fixed with a first motor; when the iron core is electrified and attracted by the armature, the second spring continues to stretch, and one end of the connecting rod is separated from the mounting base plate; the armature can generate displacement in the first sliding groove, so that the cam can be switched back and forth in an interlayer formed between the first retaining ring and the second retaining ring and an interlayer formed between the third retaining ring and the fourth retaining ring.

8. The double-speed winch with switchable clutching function as claimed in claim 1, wherein the hexagonal transmission rod is fixed to the third-stage sun gear, and when the manual clutching assembly works, the third-stage sun gear is disengaged or engaged with the third-stage planet gear by pushing one end of the hexagonal transmission rod, so that the clutching state of the winch is controlled; in the same way, when the cam of the motor winch rotates in the interlayer between the third retaining ring and the fourth retaining ring, the cam can drive the six-stage transmission rod to move, so that the movement of the three-stage sun gear is controlled.

9. The double-speed winch with switchable clutching as claimed in claim 1, wherein a control module is provided on the winch, a relay is provided on the control module, and the relay is electrically connected with the motor assembly; the control module is also provided with a first motor module and a second motor module, and the first motor module is electrically connected with the first motor and the first Hall switch; the second motor module is electrically connected with the second motor and the second Hall switch; the control module is also provided with a remote controller receiving module for receiving an instruction sent by the wireless remote control handle; and meanwhile, the coil on the iron core is also electrically connected with the control module.