CN218708787U - Valve control speed regulating winch - Google Patents

Abstract

The utility model discloses a valve accuse speed governing winch, including motor, main shaft, the motor is used for driving the main shaft and rotates, the main shaft is used for twining wire rope, still includes the switching-over valve, the motor is provided with two, the switching-over valve intercommunication just is used for controlling the fuel feeding of two motors between the oil circuit of two motors, the switching-over valve can change the fuel feeding mode of two motors, adjust the operating condition regulation that the parallelly connected fuel feeding mode of series connection realized the motor between the motor through the switching-over valve, be an oil circuit of two motor commoning during the motor is established ties promptly, fluid returns in the oil circuit and supplies with two motors simultaneously, the oil mass that the motor passes through is big, the rotational speed is very fast under the tandem state, two motors are supplied oil respectively by two branch roads when parallelly connected, the oil mass that passes through of two motors reduces, but two motors are initiative rotating state, parallel state pull-down force is great.

Description

Valve control speed regulating winch

Technical Field

The utility model belongs to the technical field of the hoist machine equipment technique and specifically relates to a valve accuse speed governing winch is related to.

Background

Need go up and down or the flat field that drags to the material at building, pier, forestry etc, the workman uses steel wire and pulley to hoist the material usually, and the thick wire rope that uses during the hoist and mount is for keeping intensity, and weight is often great, therefore people are comparatively hard when wearing the take out with wire rope between the pulley, and the operation is comparatively inconvenient.

CN2786082Y discloses a steel rope winch, which is a general name of a winch, and uses a motor to drive a main shaft to tighten and loosen a steel wire rope, so as to improve the working efficiency.

SUMMERY OF THE UTILITY MODEL

For solving the steel wire winch and only having a pulling speed, when the weight of not having hoist and mount material or material on the wire rope is less, the pulling speed of winch is still slower, influences work efficiency's problem, this application provides a valve accuse speed governing winch, and the concrete scheme is as follows:

the valve control speed regulation winch comprises motors, a main shaft and a base, wherein the motors are used for driving the main shaft to rotate, the motors and the main shaft are installed on the base, the valve control speed regulation winch further comprises two reversing valves, the reversing valves are communicated on motor oil paths of the two motors, and the motor oil paths regulate the two motors to be in parallel or serial oil supply states through the reversing valves.

By adopting the technical scheme, the two motors are used for driving the main shaft, the motors are driven by hydraulic oil, the reversing valve can change the oil supply modes of the two motors, the rotating speed and the power of the motors driven by the hydraulic oil can be influenced by the amount of oil, the working state of the motors can be adjusted by adjusting the oil supply modes of the two motors in series and parallel connection through the reversing valve, the motors share one oil circuit when being connected in series, oil returns in the oil circuit and is supplied to the two motors simultaneously, the oil quantity passed by the motors is large, so that the rotating speed can be improved in the series state, the two motors are respectively supplied with oil by two branches when being connected in parallel, the oil quantity passing through the two motors is reduced, but the two motors are in an active rotating state, so that the pulling force can be improved in the parallel state, therefore, the hoisting speed can be adjusted by controlling the oil supply modes of the two motors, the condition that the hoisting speed is still slow when heavy objects are pulled is reduced, and the working efficiency is improved.

Optionally, the rotating shafts of the two motors are provided with pinions, the main shaft is provided with a bull gear, the pinions of the two motors are respectively meshed with two sides of the bull gear, and the two motors are in the same steering direction.

Through adopting above-mentioned technical scheme, through the epaxial gear of motor commentaries on classics and the epaxial gear engagement of main, the motor can drive gear revolve, main epaxial gear also can drive the gear of another motor to a certain extent through the transmission, when the switching-over valve switches to the tandem state, the motor that oil was passed through earlier is as the initiative motor, the motor that back was passed through is as driven motor, driven motor's rotational speed probably is less than the initiative motor, rotate and connect between two motors, the initiative motor drives driven motor and rotates, the different circumstances that influence the hoist of two motor rotational speeds, two motors syntropy rotate, drive the gear of middle main shaft simultaneously, the rotation efficiency of main shaft is improved, the gear also can provide certain power for the motor when two motors drive gear revolve, the rotation efficiency of motor has also been improved, stability after the gear engagement is better, can improve the efficiency of hoist.

Optionally, the device further comprises two rollers, wherein the two rollers are arranged on the main shaft and are sleeved on the main shaft and are in circumferential linkage with the main shaft.

Through adopting above-mentioned technical scheme, through cylinder and main shaft circumference linkage, the main shaft can drive the cylinder, and the volume of cylinder is greater than the main shaft, and the efficiency that wire rope convoluteed the hoist on the cylinder is higher, is provided with a plurality of cylinders on the main shaft, can hoist many bundles of wire rope simultaneously, improves the suitability, promotes work efficiency.

Optionally, a clutch is further arranged on the main shaft and is arranged in a one-to-one manner with the roller, an external spline is arranged on the position, corresponding to the roller, of the main shaft, an internal spline corresponding to the external spline on the main shaft is arranged on the inner side, close to the main shaft, of the clutch, the main shaft is connected with the clutch spline, an external spline is arranged on the outer side, far away from the main shaft, of the clutch and is located at the same end as the internal spline on the clutch, an internal spline is arranged on one end, close to the clutch, of the roller, corresponding to the clutch, the clutch is connected with the roller spline, the clutch is connected with the main shaft in a sliding manner, and a push-pull rod for pulling the clutch is further arranged on the clutch.

By adopting the technical scheme, the clutch is simultaneously connected with the main shaft and the roller spline, the clutch is driven to rotate when the main shaft rotates, the clutch also drives the roller to rotate, the turnover linkage of the roller and the main shaft is realized, the spline has large bearing torque under the same shaft diameter, uniform stress, small stress concentration and long service life, the stability of the winch is improved, the service life of the winch is prolonged, the turnover linkage of the roller and the main shaft can be disconnected through the push-pull rod sliding clutch, the roller can be in turnover linkage with the main shaft according to working conditions, the condition that the power loss of the roller is not needed to be used can be reduced, and the winch efficiency is improved.

Optionally, the two ends of the roller are provided with winding disks, the two winding disks are matched to form a winding area for winding the steel wire, and the winding disks and the roller are integrally arranged.

Through set up the rolling dish on the main shaft, two rolling dish cooperations form the rolling district, and behind the wire rope winding in rolling district, the rolling dish can play spacing effect to the wire rope in rolling district, reduces the condition that wire rope deviates from to both sides.

Optionally, a brake is arranged on the base and comprises a brake hoop and a chassis, the chassis is fixedly connected with the base, the brake hoop is sleeved on the outer side of the main shaft, an adjusting assembly used for adjusting the tightness of the brake hoop is arranged on the chassis, and the adjusting assembly can adjust the brake hoop to clamp the main shaft.

Through taking above-mentioned technical scheme, the brake hoop can be adjusted and inwards retract through adjusting part, can press from both sides tight main shaft after the brake hoop retracts, and the brake hoop of fixing on the chassis consequently can restrict the circumferential direction of main shaft, supplementary main shaft braking.

Optionally, the adjusting part includes lead screw, knee lever, pulling rod, it has the sliding tray to open on the chassis, the pulling rod is with the help of sliding tray and chassis sliding connection, braking hoop one end and chassis fixed connection, the other end is articulated with the pulling rod, the one end that the braking hoop was kept away from to the pulling rod is articulated with the knee lever, the middle part and the chassis of knee lever rotate to be connected, the one end that the pulling rod was kept away from to the knee lever is equipped with the sleeve, the sleeve inboard is equipped with the screw thread, the sleeve is articulated with the knee lever, the lead screw rotates with the chassis to be connected, the lead screw passes the sleeve and its threaded connection.

Through taking above-mentioned technical scheme, because lead screw one end is connected with the chassis rotation, can not reciprocate when the lead screw rotates, consequently can rotate the sleeve of being connected with the lead screw rotation, through setting up and curved bar articulated sleeve, the sleeve can reciprocate and do not influence the removal about the curved bar, can drive the pulling rod when the curved bar rotates and slide in the sliding tray, the elasticity of braking hoop then can be changed in the sliding tray pulling to the regulation of braking hoop elasticity has been realized.

Optionally, a rotating ring is arranged at the upper end of the screw rod, and the rotating ring is fixedly connected with the screw rod.

Through adopting above-mentioned technical scheme, the upper end of lead screw is equipped with fixed connection's swivel becket, and the operator rotates the swivel becket and can rotate the lead screw to the realization is convenient for the operator rotation to the regulation of braking hoop elasticity, cyclic annular setting, has improved work efficiency.

Optionally, the reversing valve is a manual reversing valve or an electromagnetic reversing valve.

Through taking above-mentioned technical scheme, the manual directional control valve operation is convenient, need not the too much professional knowledge of operator, and the manual directional control valve is mechanical structure, uses the manual directional control valve can reduce sea water or rainwater and cause the influence and cause the condition of regulation failure to the switching-over valve, is applicable to boats and ships, hydraulic works, and the electromagnetic directional control valve adopts automatically controlled, and is more sensitive to the regulation of switching-over, and is more convenient during the regulation, improves work efficiency, is applicable to the mining etc. and need not the operating mode with water contact.

Optionally, a plurality of supporting plates are evenly arranged on the inner side of the roller in the circumferential direction, and the supporting plates are abutted to the main shaft.

Through adopting above-mentioned technical scheme, backup pad butt main shaft, the backup pad of butt main shaft have the power towards the cylinder, have improved the bearing capacity of cylinder to a certain extent for the longer wire rope can be hoist to the cylinder.

In summary, the present application has at least the following beneficial effects:

1. the application has solved steel wire winch only has a pulling speed, when the weight that does not have hoist and mount material or material on the wire rope is less, the pulling speed of winch is still slower, influence work efficiency's problem, adjust the fuel feeding mode through the switching-over valve, divide into the parallelly connected fuel feeding mode of series connection, two motors share an oil circuit when the motor is established ties, fluid supplies two motors simultaneously in the oil circuit, the oil mass that the motor passes through is big, and the motor that passes through afterwards is mainly as driven motor, the power that provides is less, therefore the rotational speed can obtain promoting but power is less under the tandem state, two motors supply oil respectively by two branches when parallelly connected, the oil mass that passes through of two motors reduces, but two motors are initiative rotation state, consequently, pulling force can obtain promoting under the parallel state, consequently can adjust hoist speed and power through the switching-over valve.

2. This application passes through the gear and rotates two motors to be connected, two motors can be the transmission of each other, increase hoist efficiency, when the fuel feeding mode of motor is for establishing ties, the motor that fluid passes through earlier in the oil circuit is as the initiative motor, the motor that passes through behind the fluid is as driven motor, driven motor's work efficiency often is not as the initiative motor, consequently the initiative motor can drive driven motor, the condition that driven motor slew rate crossed low influence main shaft rotational speed has been reduced, the hoist effect has been improved.

3. This application is provided with the stopper, because hydraulic motor lasts the during operation, hydraulic oil can have the omission, and the winch can not continue to operate and make the material keep unsettled state, sets up the stopper then can be with the main shaft chucking to restrict the rotation of main shaft, when needs stop the hoist with the material suspension empty, can stop the work back of motor through stopper braking main shaft stall, reduce the condition of the motor oil leak of continuously working, when stopping hoist work, the stopper also can assist and brake.

Drawings

Fig. 1 is a sectional view of the present embodiment.

Fig. 2 is a cross-sectional view of the present embodiment, mainly showing a top view.

Fig. 3 is a diagram of the motor oil path in the present embodiment, mainly showing the serial state.

Fig. 4 shows the motor oil path in the present embodiment, which mainly shows the parallel connection state.

Fig. 5 is a sectional view of the present embodiment, mainly showing the spindle and the motor.

Fig. 6 is a cross-sectional view of the brake hoop of the present embodiment.

Description of the reference numerals:

1. a motor; 2. a main shaft; 3. a base; 4. a support; 5. a manual directional control valve; 6. a motor oil path; 7. an external spline; 8. a drum; 9. a support plate; 10. an internal spline; 11. a clutch; 12. a winding disc; 13. a brake; 14. a brake hoop; 15. a brake disc; 16. an adjustment assembly; 17. a chassis; 18. a screw rod; 19. a curved bar; 20. pulling a rod; 21. a sleeve; 22. a rotating ring; 23. a pinion gear; 24. a bull gear; 25. a winding area; 26. a sliding groove.

Detailed Description

The present application is described in further detail below by way of specific examples in conjunction with figures 1-4.

Example one

A valve control speed regulating winch is shown in figures 1 and 2 and comprises a motor 1, a main shaft 2 and a base 3 which are driven by hydraulic oil, wherein supports 4 used for placing the main shaft 2 are arranged on two sides of the base 3, the main shaft 2 is rotatably connected to the supports 4, a small gear 23 is arranged on a rotating shaft of the motor 1, a large gear 24 is arranged on the main shaft 2, the small gear 23 and the large gear 24 are in meshing transmission, the motor 1 can drive the main shaft 2 to rotate, and in the concrete implementation, a rope head clamp is arranged on the supports 4 and used for fixing a steel wire rope. The motors 1 are provided with two motors, the small gears 23 of the two motors 1 are respectively meshed with two sides of the large gear 24, and the steering directions of the two motors 1 are the same, so that the large gear 24 is driven to rotate together.

As shown in fig. 3 and 4, oil is supplied between the two motors 1 through the motor oil path 6, the hydraulic drive system further includes a reversing valve, the reversing valve is disposed between the oil paths of the two motors 1, and the reversing valve can adjust positions of the reversing valve to provide two oil supply modes for the oil paths, and since the motors 1 are driven by hydraulic oil, the passing oil amount can affect the rotating speed and power of the motors, when the motors 1 are connected in series, the two motors 1 share one motor oil path 6, and the oil returns in the motor oil path 6, along the route of the motor oil path 6 in fig. 3, the oil can be simultaneously supplied to the two motors 1, the motor 1 passing the oil first serves as an active motor, and the motor 1 passing the oil later serves as a transmission motor, since the oil amount of the transmission motor is consumed during specific implementation, the transmission motor mainly depends on the active motor to drive, which is equivalent to drive the rotation of the main shaft 2 by the active motor, so that the rotating speed of the main shaft 2 can be increased, and this state is suitable for the condition of lighter materials. As shown in fig. 4, when the two motors 1 are connected in parallel, the two branches supply oil respectively, although the oil passing amount of the two motors 1 is reduced, the two motors 1 are driven by hydraulic oil to rotate along the route in the figure, and the two motors 1 simultaneously drive the main shaft 2 to rotate, so that the tension can be improved in the parallel state, and the two states can be suitable for different working conditions. The reversing valve adopts the manual reversing valve 5 and is installed on the motor 1, and the operator just can realize the regulation of 2 speeds of main shaft through manual regulation reversing valve, and the manual structure is difficult to be influenced by external environment, can be applicable to multiple occasion, like the condition of multiple needs such as boats and ships, hydraulic engineering with water contact.

As shown in fig. 5, two drums 8 are arranged on a main shaft 2, the drums 8 are sleeved on the main shaft 2, the drums 8 are in transmission connection with the main shaft 2, a plurality of supporting plates 9 are evenly distributed on the inner side of each drum 8 in the circumferential direction, the supporting plates 9 are abutted to the main shaft 2, the bearing capacity of each drum 8 is improved to a certain extent, winding discs 12 are arranged at two ends of each drum 8, the winding discs 12 and the drums 8 are integrally arranged, the two winding discs 12 are matched to form a winding area 25, after the steel wire ropes are wound on the winding area 25, the winding discs 12 can limit the steel wire ropes of the winding area 25, the situation that the steel wire ropes are separated towards two sides is reduced, different steel wire ropes can be wound on the drums 8 respectively in specific implementation, the steel wire ropes can be wound on the drums 8 to achieve different winding effects, the adaptability is improved, the size of the drums 8 is larger, the steel wire ropes with longer distance can be wound under the same number of turns in rotation, and the winding efficiency is improved.

As shown in fig. 5, an external spline 7 is disposed on the main shaft 2 at a position corresponding to the drum 8, a clutch 11 is disposed on the main shaft 2, an internal spline 10 corresponding to the external spline 7 is disposed on the inner side of the clutch 11 close to the main shaft 2, an external spline 7 is also disposed on the outer side of the clutch 11 away from the main shaft 2, an internal spline 10 corresponding to the clutch 11 is disposed on the drum 8, the clutch 11 can be in spline connection with the drum 8, the clutch 11 is sleeved on the main shaft 2 and is in sliding connection with the main shaft 2, the clutch 11 can move axially along the main shaft 2, an integrally disposed push-pull rod is further disposed on the clutch 11, the push-pull rod can drive the clutch 11 to slide on the main shaft 2, the internal spline 10 of the clutch 11 can be in spline connection with the external spline 7 of the main shaft 2 in a sliding manner, the clutch 11 is in spline connection with the drum 8 after sliding, so that the main shaft 2 can drive the drum 8 to rotate together, the drum 8 is provided with the clutch 11 by the spline, the movable clutch 11 can adjust connection between the drum 8 and the drum 8, power loss can be reduced by the spline connection with the drum 8, and the electromagnet can be further provided by the spline connection with the external spline 10 in other embodiments, and the electromagnet can improve the stability of the clutch 11.

As shown in fig. 2 and 6, a brake 13 is arranged on the main shaft 2, the brake 13 includes a chassis 17, the chassis 17 is fixedly connected with the base 3, the brake 13 further includes a brake disc 15 and an adjustable brake hoop 14, the brake disc 15 and the chassis 17 are integrally arranged, the chassis 17 is fixedly mounted on the base 3, the brake hoop 14 is arranged on one side of the brake disc 15 close to the main shaft, the brake hoop 14 is sleeved on the main shaft 2, the brake disc 15 mainly serves as a mounting base of the brake hoop 14, the brake hoop 14 is an elastic annular body, beryllium bronze with good strength, hardness, wear resistance and fatigue resistance can be obtained in specific implementation, the elasticity of the beryllium bronze is also excellent, an adjusting component 16 for adjusting the tightness of the brake hoop 14 is further arranged on the brake 13, the brake hoop 14 can abut against the main shaft 2 after being adjusted, so as to limit circumferential rotation of the main shaft 2, in specific implementation, a frosted surface can be arranged on a surface of the inner side of the brake hoop 14 abutting against the main shaft 2, and a braking effect of the brake 13 is further improved by increasing friction force. In other embodiments, a tension screw and brake pads may also be used as the brake 13, the brake pads are disposed on both sides of the main shaft 2, and the tension screw pushes the brake pads on both sides of the main shaft 2 to clamp the main shaft 2.

As shown in fig. 6, the adjusting assembly 16 includes a screw rod 18, a curved rod 19, and a pulling rod 20, the adjusting assembly 16 is mounted on a chassis 17, a sliding groove 26 is formed on the chassis 17, the pulling rod 20 is slidably connected to the chassis 17 by means of the sliding groove 26, one end of the pulling rod 20 is hinged to the brake hoop 14, the other end of the pulling rod 20 is hinged to the curved rod 19, the curved rod 19 is in an "L" shape, the middle of the curved rod 19 is rotatably connected to the chassis 17, one end of the curved rod 19 away from the pulling rod 20 is provided with a vertical sleeve 21, the sleeve 21 is hinged to the curved rod 19, the inner side of the sleeve 21 is provided with a thread, a through hole is formed in a position of the chassis 17 corresponding to the sleeve 21, the screw rod 18 penetrates through the through hole and is in threaded connection with the curved rod 19 by means of the sleeve 21, the upper end of the screw rod 18 is rotatably connected to the chassis 17, the screw rod 18 is idle rotation on the chassis 17 and cannot move up and down, so that the screw rod 18 can drive the sleeve 21 to move up and down, the curved rod 19 to rotate, the pulling rod 19 rotates and then drives the pulling rod 20 to move along the sliding groove 26 to move towards the chassis 17, thereby pulling hoop 14 to press the brake hoop 14, the upper end of the screw rod 18 is provided with a fixed ring 22, which is connected to improve the rotation efficiency of the screw rod 18, and the operator, and the spindle 18.

The working principle is as follows: the steel wire rope is wound and fixed on two rollers 8 and is positioned on a winding area 25 between winding disks 12 after being wound, when one roller 8 needs to be used, an inner spline 10 is connected with an outer spline 7 on a main shaft 2 in a clamping mode through a movable clutch 11, so that the main shaft 2 can drive the rollers 8 to rotate, the working states of different rollers 8 can be adjusted through the clutch 11, the steel wire rope is wound, the working is stopped or materials are suspended, a rotating ring 22 of a brake 13 can be rotated, a brake hoop 14 is tightened to press a brake disk 15, braking is carried out, the condition of hydraulic oil overflow and leakage when the motor 1 continuously works is reduced, when speed adjustment is needed, the serial-parallel connection state of oil paths of the motor 1 is switched through adjusting a manual reversing valve 5, the rotating speed and the power of the motor 1 are influenced by the oil supply amount, when the motors 1 are connected in series, one motor 1 serves as an active motor to drive the other motor 1, the rotating speed of the active motor is large, the rotating speed of the motor 1 can be increased, but the rotating speed of the main shaft 1 is reduced by adjusting one motor 1 which passes through the oil supply, the two motors which pass through the manual reversing valve 5, the main shaft 2, the oil supply is not large oil supply, the oil supply, only when the main shaft 2 is connected in parallel, the main shaft 2, and the two motors 1 which passes through the speed adjustment, the two motors which passes through the speed adjustment, and the speed adjustment motor 1, and the two motors which passes through the speed adjustment motor 1, the speed adjustment is reduced by the main shaft 2, and the speed adjustment.

Example two

The second embodiment of the valve-controlled speed regulating winch is different from the first embodiment of the valve-controlled speed regulating winch in that the reversing valve of the second embodiment is an electromagnetic reversing valve. A plurality of electromagnetic directional valves and the motors 1 can be arranged according to specific working conditions in specific implementation, the electromagnetic directional valves can supply oil more sensitively and adjust the oil, a more flexible oil supply mode can be provided, and the passing oil quantity of each motor 1 is independently controlled, so that multi-stage speed regulation is realized.

The working principle is as follows: the steel wire rope is wound and fixed on the roller 8 and then hoisted, the oil supply state of the two motors 1 is changed by adjusting the electrically controlled electromagnetic directional valve, and the electromagnetic directional valve is easy to be damaged by water entering in the working condition of contacting with water, so that the electromagnetic directional valve is generally used in the working condition of not easy to contact with water, such as mining, and the like, is more convenient to operate, and related circuits and programs can be designed to realize automatic adjustment.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a valve accuse speed governing winch, includes motor (1), main shaft (2), base (3) by hydraulic drive, motor (1) are used for driving main shaft (2) and rotate, install on base (3) motor (1) and main shaft (2), its characterized in that: the motor oil circuit comprises two motors (1), the two motors (1) are communicated with motor oil circuits (6) of the two motors (1), and the motor oil circuits (6) adjust the two motors (1) to be in parallel or series oil supply states through the reversing valves.

2. The valve-controlled governor winch of claim 1, wherein: be equipped with pinion (23) in the pivot of two motor (1), be equipped with gear wheel (24) on main shaft (2), two pinion (23) of motor (1) mesh respectively in the both sides of gear wheel (24), two motor (1) turns to the same.

3. The valve-controlled governor winch of claim 1, wherein: the two rollers (8) are arranged on the main shaft (2), and the two rollers (8) are sleeved on the main shaft (2) and are in circumferential linkage with the main shaft (2).

4. The valve-controlled governor winch of claim 3, wherein: the spindle (2) is further provided with a clutch (11) and arranged in a one-to-one mode with the drum (8), an external spline (7) is arranged on the spindle (2) corresponding to the drum (8), an internal spline (10) corresponding to the external spline (7) on the spindle is arranged on the inner side, close to the spindle (2), of the clutch (11), the spindle (2) is in splined connection with the clutch (11), the external spline (7) is arranged on the outer side, far away from the spindle, of the clutch (11) and located at the same end as the internal spline (10), one end, close to the clutch (11), of the drum (8) is provided with the internal spline (10) corresponding to the clutch (11), the clutch (11) is in splined connection with the drum (8), the clutch (11) is in sliding connection with the spindle (2), and the clutch (11) is further provided with a push-pull rod used for pulling the clutch (11).

5. The valve-controlled governor winch of claim 3, wherein: the two ends of the roller (8) are provided with winding disks (12), the two winding disks (12) are matched to form a winding area (25) for winding steel wires, and the winding disks (12) and the roller (8) are integrally arranged.

6. The valve-controlled governor winch of claim 1, wherein: be equipped with stopper (13) on base (3), stopper (13) are including braking hoop (14), chassis (17) and base (3) fixed connection, braking hoop (14) cover is in main shaft (2) outside, be equipped with the adjusting part that is used for adjusting braking hoop (14) elasticity on chassis (17), the adjusting part can adjust braking hoop (14) and press from both sides tight main shaft (2).

7. The valve-controlled governor winch of claim 6, wherein: the adjusting part comprises a screw rod (18), a crank rod (19) and a pulling rod (20), a sliding groove (26) is formed in the chassis (17), the pulling rod (20) is connected with the chassis (17) in a sliding mode through the sliding groove (26), one end of a brake hoop (14) is fixedly connected with the chassis (17), the other end of the brake hoop is hinged to the pulling rod (20), one end, far away from the brake hoop (14), of the pulling rod (20) is hinged to the crank rod (19), the middle of the crank rod (19) is connected with the chassis (17) in a rotating mode, one end, far away from the pulling rod (20), of the crank rod (19) is provided with a sleeve (21), threads are arranged on the inner side of the sleeve (21), the sleeve (21) is hinged to the crank rod (19), the screw rod (18) is connected with the chassis (17) in a rotating mode, and the screw rod (18) penetrates through the sleeve (21) and is connected with the threads.

8. The valve-controlled governor winch of claim 7, wherein: the upper end of the screw rod (18) is provided with a rotating ring (22), and the rotating ring (22) is fixedly connected with the screw rod (18).

9. The valve-controlled governor winch of claim 1, wherein: the reversing valve is a manual reversing valve (5) and an electromagnetic reversing valve.

10. The valve-controlled governor winch of claim 3, wherein: a plurality of supporting plates (9) are evenly arranged on the inner side of the roller (8) in the circumferential direction, and the supporting plates (9) are abutted to the main shaft (2).

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