Steel wire rope unwinding mechanism of hydraulic winch

Abstract

The utility model belongs to the technical field of hydraulic winches, and particularly relates to a steel wire rope unwinding mechanism of a hydraulic winch, which comprises a bottom plate, an over-unwinding prevention mechanism is arranged above the bottom plate, and a guide limiting mechanism is arranged on one side of the over-unwinding prevention mechanism. Through the arranged over-unwinding prevention mechanism, over-unwinding of the steel wire rope is effectively prevented, through the wire twisting disc and the unwinding roller which are arranged on the opposite faces of the bearing plate, the unwinding roller is driven by the power assembly to rotate, so that the steel wire rope is rotationally unwound, an arranged electric hydraulic telescopic rod drives an L-shaped pushing plate to move, and an over-unwinding prevention moving plate and a clamping plate are pushed to move relatively; and meanwhile, the wire twisting disc is clamped and stopped, an over-unwinding prevention moving plate has certain elasticity through a strong telescopic spring, a turn number distance sensor is started, the number of unwinding turns is detected, unwinding is completed, and when the wire twisting disc rotates, a supporting shaft is pushed to ascend through a lifting hydraulic cylinder, the over-unwinding prevention moving plate is driven to ascend by a certain angle, and then the wire twisting disc is wound. The steel wire rope unwinding effect is guaranteed, and the steel wire rope unwinding efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic winches, and in particular relates to a steel wire rope unwinding mechanism of a hydraulic winch. Background Art

[0002] Hydraulic winch is a small and light lifting equipment that uses a drum to wind a wire rope or chain to lift or pull heavy objects. It is also called a hoist. The winch can be used alone or as a component of machinery such as lifting, road construction and mine hoisting. It is widely used in material lifting or flat towing in marine engineering, construction, water conservancy engineering, forestry, mining, docks, etc.

[0003] After searching, the Chinese utility model patent application document with Chinese patent authorization announcement number CN217894987U discloses a wire rope unwinding mechanism of a hydraulic winch that prevents over-release, which includes a winch drum fixedly mounted on the output shaft of the hydraulic winch body. When in use, the output shaft of the hydraulic winch body controls the rotation of the wire rope to release the wire rope, thereby causing the object hoisted on the wire rope to descend. When the object descends to contact the ground, if the hydraulic winch body is still working at this time, the inclination sensor will detect that the angle of the wire rope is abnormal, and the microcontroller will control the hydraulic winch body to shut down and stop working, and the transmission rod is driven to rotate through the output shaft of the motor, thereby driving all hollow worm gears to rotate, and then each worm gear meshing therewith drives its own rotating shaft to rotate, so that each rotating shaft drives all cooling fan blades to rotate for cooling.

[0004] In view of the above-mentioned related technologies, the device is equipped with an anti-over-release device and an inclination sensor. When the output shaft of the hydraulic winch body controls the rotation of the wire rope to release the wire rope, it cannot effectively prevent the wire rope from being over-released. Therefore, it is urgent to design a wire rope unwinding mechanism for a hydraulic winch to deal with these problems. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model discloses a steel wire rope unwinding mechanism of a hydraulic winch.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A wire rope unwinding mechanism of a hydraulic winch comprises a bottom plate, an over-release prevention mechanism is arranged above the bottom plate, and a guide limiting mechanism is arranged on one side of the over-release prevention mechanism.

[0008] The over-discharge prevention mechanism includes a bearing plate arranged above the bottom plate, a reel is installed on the opposite side of the bearing plate, a wire drum is installed at both ends of the reel, a power assembly is arranged at one end of the reel, an over-discharge prevention moving plate is arranged on both sides of the wire drum, a clamp is installed on the opposite side above the anti-over-discharge moving plate, a strong telescopic spring is arranged on one side of the clamp, an L-shaped pushing plate is arranged below the anti-over-discharge moving plate, an electric hydraulic telescopic rod is arranged on one side of the L-shaped pushing plate, a support shaft is arranged on the opposite side of the anti-over-discharge moving plate, a lifting hydraulic cylinder is arranged on one side of the support shaft, and a circle distance sensor is arranged on one side of the bearing plate.

[0009] Preferably, the guide limiting mechanism includes a vertical plate arranged on one side of the anti-over-release mechanism, a moving component is arranged on the inner side of the vertical plate, a damping spring device is arranged above the moving component, an L-shaped support frame is installed above the damping spring device, a limited rotation component is installed on the opposite surface of the L-shaped support frame, and a position sensor is installed on one side of the vertical plate.

[0010] Preferably, a cleaning assembly is provided above the unwinding roller.

[0011] Preferably, a rubber buffer pad is installed on one side of the L-shaped push plate, and the distance between the clamping plate and the winch drum is set to 10-20MM.

[0012] Preferably, the moving assembly includes a ball screw arranged on the inner side of the vertical plate, a driving motor is installed at one end of the ball screw, and a moving platform is installed on the outer surface of the ball screw.

[0013] Preferably, the limited rotation assembly comprises a supporting rotation shaft arranged on the opposite side of the L-shaped support frame, and a limited roller is installed on the outer surface of the supporting rotation shaft.

[0014] The beneficial effects are:

[0015] The utility model discloses a wire rope unwinding mechanism of a hydraulic winch, which effectively prevents the wire rope from being over-released by means of an anti-over-release mechanism, and drives the unwinding roller to rotate through a power component by means of a winch drum and an unwinding roller arranged on opposite sides of a bearing plate, so that the wire rope is rotated and unwound, and an electric hydraulic telescopic rod drives an L-shaped pushing plate to move, and drives an anti-over-release moving plate and a clamping plate to move relative to each other, and at the same time clamps and stops the winch drum, and makes the anti-over-release moving plate have a certain elasticity through a strong telescopic spring, and turns a distance sensor is turned on to detect the number of unwinding turns, and when the unwinding is completed, the supporting shaft is pushed up through a lifting hydraulic cylinder, and drives the anti-over-release moving plate to rise a certain angle, thereby ensuring the wire rope unwinding effect and improving the efficiency and accuracy of the wire rope unwinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the shaft side structure of the utility model;

[0017] Figure 2It is a front view structural schematic diagram of the utility model;

[0018] Figure 3 It is a first structural schematic diagram of the utility model;

[0019] Figure 4 It is a second structural schematic diagram of the utility model;

[0020] Figure 5 yes Figure 4 Schematic diagram of the structure at A in the middle.

[0021] In the figure: 1. bottom plate;

[0022] 2. Guide and limit mechanism; 201. Vertical plate; 202. Ball screw; 203. Moving table; 204. Driving motor; 205. Damping spring; 206. L-shaped support frame; 207. Reinforcement rib; 208. Limit roller; 2081. Supporting rotating shaft; 209. Position sensor;

[0023] 3. Anti-overdischarge mechanism; 301. Load-bearing plate; 302. Capstan; 303. Unwinding roller; 304. Power assembly; 305. Anti-overdischarge moving plate; 3051. Clamp; 306. Strong telescopic spring; 307. Electric hydraulic telescopic rod; 3071. L-shaped push plate; 308. Lifting hydraulic cylinder; 309. Support shaft; 310. Turn distance sensor; 311. Cleaning assembly. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Reference Figure 1-5 The utility model provides an embodiment: a wire rope unwinding mechanism of a hydraulic winch, comprising a bottom plate 1, an over-release prevention mechanism 3 is arranged above the bottom plate 1, and a guide limiting mechanism 2 is arranged on one side of the over-release prevention mechanism 3.

[0028] In this embodiment: the guide limit mechanism 2 includes a vertical plate 201 arranged on one side of the over-discharge prevention mechanism 3, a moving assembly is arranged on the inner side of the vertical plate 201, a damping spring device 205 is arranged above the moving assembly, an L-shaped support frame 206 is installed above the damping spring device 205, a limited rotation assembly is installed on the opposite surface of the L-shaped support frame 206, and a position sensor 209 is installed on one side of the vertical plate 201. The moving assembly includes a ball screw 202 arranged on the inner side of the vertical plate 201, a driving motor 204 is installed at one end of the ball screw 202, and a moving platform 203 is installed on the outer surface of the ball screw 202. The limited rotation assembly includes a support rotation shaft 2081 arranged on the opposite surface of the L-shaped support frame 206, and a limited roller 208 is installed on the outer surface of the support rotation shaft 2081. The limited roller 208 is used to limit the movement of the wire rope. A soft brush is installed on the outer surface of the limited roller 208 to clean the dust on the outer surface of the wire rope. A reinforcing rib 207 is installed on one side of the L-shaped support frame 206. The reinforcing rib 207 is used to support the L-shaped support frame 206.

[0029] In this embodiment: the over-discharge prevention mechanism 3 includes a bearing plate 301 arranged above the bottom plate 1, a reel 303 is installed on the opposite side of the bearing plate 301, a wire drum 302 is installed at both ends of the reel 303, a power assembly 304 is arranged at one end of the reel 303, the power assembly 304 is used to drive the reel 303 to rotate, the power assembly 304 includes a belt arranged at one end of the reel 303, and a power motor output end is arranged on one side of the belt. Over-discharge prevention moving plates 305 are arranged on both sides of the wire drum 302, a clamping plate 3051 is installed on the opposite side above the anti-over-discharge moving plate 305, a strong telescopic spring 306 is arranged on one side of the clamping plate 3051, and the clamping plate 3051 is used to clamp the wire drum 302. An L-shaped push plate 3071 is arranged below the anti-over-discharge moving plate 305, an electric hydraulic telescopic rod 307 is arranged on one side of the L-shaped push plate 3071, a support shaft 309 is arranged on the opposite side of the anti-over-discharge moving plate 305, a lifting hydraulic cylinder 308 is arranged on one side of the support shaft 309, and a circle distance sensor 310 is arranged on one side of the bearing plate 301. A cleaning component 311 is arranged above the unwinding roller 303. The cleaning component 311 includes a cleaning water tank arranged above the bearing plate 301, a cleaning spray row is arranged below the cleaning water tank, and a waste water tank is arranged below the cleaning spray row. The cleaning component 311 is used to clean the steel wire rope on the outer surface of the unwinding roller 303. A rubber buffer pad is installed on one side of the L-shaped push plate 3071, and the distance between the clamping plate 3051 and the winch drum 302 is set to 10-20MM.

[0030] Working principle: When in use, first place the mechanism in a suitable position, start the power assembly 304, drive the unwinding roller 303 and the winch drum 302 to rotate, and drive the wire rope on the outer surface of the unwinding roller 303 to rotate, pass one end of the wire rope through the opposite surfaces of the two sets of limit rollers 208, start the drive motor 204, drive the ball screw 202 to rotate, and drive the moving platform 203 to move, and at the same time, the limit roller 208 installed above the moving platform 203 and the wire rope on the opposite surface move, and the position sensor 209 is set to detect the moving position of the wire rope, so that the two sets of limit rollers 208 move smoothly. When the circle distance sensor 310 detects that the wire rope has been released to a predetermined number of circles, the electric hydraulic is turned on. The telescopic rod 307 is pressed to drive the L-shaped pushing plate 3071. Through the strong telescopic spring 306, the anti-over-discharge movable plate 305 and the clamping plate 3051 jointly move and clamp the winch drum 302, so that the wire rope on the outer surface of the unwinding roller 303 stops unwinding. If rewinding is required, the electric hydraulic telescopic rod 307 drives the L-shaped pushing plate 3071 in the reverse direction, so that the anti-over-discharge movable plate 305 and the clamping plate 3051 leave the winch drum 302, and the lifting hydraulic cylinder 308 is started to push the support shaft 309, so as to drive the anti-over-discharge movable plate 305 and the clamping plate 3051 to be lifted up and away from the winch drum 302. When the wire rope needs to be cleaned, the cleaning component 311 can be started to clean it.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire rope unwinding mechanism for a hydraulic winch, characterized in that: It comprises a bottom plate, an over-discharge prevention mechanism is arranged above the bottom plate, and a guide limit mechanism is arranged on one side of the over-discharge prevention mechanism; The anti-over-discharge mechanism includes a bearing plate arranged above the bottom plate, a reel is installed on the opposite side of the bearing plate, a wire drum is installed at both ends of the reel, a power assembly is arranged at one end of the reel, anti-over-discharge moving plates are arranged on both sides of the wire drum, a clamp is installed on the opposite side above the anti-over-discharge moving plate, a strong telescopic spring is arranged on one side of the clamp, an L-shaped pushing plate is arranged below the anti-over-discharge moving plate, an electric hydraulic telescopic rod is arranged on one side of the L-shaped pushing plate, a support shaft is arranged on the opposite side of the anti-over-discharge moving plate, a lifting hydraulic cylinder is arranged on one side of the support shaft, and a turn distance sensor is arranged on one side of the bearing plate.

2. The wire rope unwinding mechanism of a hydraulic winch according to claim 1, characterized in that: The guide limiting mechanism includes a vertical plate arranged on one side of the anti-over-discharge mechanism, a moving component is arranged on the inner side of the vertical plate, a damping spring device is arranged above the moving component, an L-shaped support frame is installed above the damping spring device, a limited rotation component is installed on the opposite surface of the L-shaped support frame, and a position sensor is installed on one side of the vertical plate.

3. The wire rope unwinding mechanism of a hydraulic winch according to claim 1, characterized in that: A cleaning component is arranged above the unwinding roller.

4. The wire rope unwinding mechanism of a hydraulic winch according to claim 1, characterized in that: A rubber buffer pad is installed on one side of the L-shaped pushing plate, and the distance between the clamping plate and the winch drum is set to 10-20MM.

5. The wire rope unwinding mechanism of a hydraulic winch according to claim 2, characterized in that: The moving assembly includes a ball screw arranged on the inner side of the vertical plate, a driving motor is installed at one end of the ball screw, and a moving platform is installed on the outer surface of the ball screw.

6. The wire rope unwinding mechanism of a hydraulic winch according to claim 2, characterized in that: The position-limiting rotation assembly comprises a support rotation shaft arranged on the opposite side of the L-shaped support frame, and a position-limiting roller is installed on the outer surface of the support rotation shaft.

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