Pneumatic winch

Abstract

The utility model relates to the technical field of winches, and discloses a pneumatic winch which comprises a control motor, a base and a winding device arranged on the base, the winding device is arranged on the base and comprises a protective cover and a drum frame, the two sides of the protective cover are fixed on side breast boards, the drum frame is arranged in the protective cover, and the middle of the drum frame is sleeved on a rotating shaft between the two side breast boards. And a limiting device is arranged in the rolling barrel frame and is pressed and covered on a steel wire rope wound and twisted on the rolling barrel frame. According to the device, the protective cover is arranged on the winding barrel frame, when the device is used for winding and twisting the steel wire rope, the winding barrel frame is covered with the protective cover, the safety in the steel wire rope winding and unwinding process can be improved, the limiting device is arranged on the winding barrel frame, and the steel wire rope can be prevented from being excessively wound and twisted and overflowing out of the winding barrel frame.

Description

Technical Field

[0001] This utility model relates to the field of winches, and in particular to a pneumatic winch. Background Technology

[0002] Currently, pneumatic winches are widely used on ships. During operation, pneumatic winches generally use an electrically controlled drum frame to wind the wire rope, leaving the wire rope exposed, which makes the winding process unsafe.

[0003] Patent application CN 104495670B discloses a wire rope winch winding device, including a wire rope winch for winding rope and a wire rope coil. The wire rope coil is fixed to a tensioning mechanism through a central shaft hole. The tensioning mechanism includes a fixed frame on one side and a movable frame on the other side. The fixed frame and the movable frame are each equipped with a rotating insert plate, which has a gripper for inserting the wire rope coil. The rotating shaft of the insert plate is sequentially connected to a speed-increasing mechanism, an electromagnetic brake, and a gear pump via gear transmission. The oil supply end of the gear pump is connected to an oil tank, and the oil outlet end is connected back to the oil tank via a pipeline through a pilot-operated overflow valve.

[0004] The existing technology leaves the steel wire exposed during the winding operation, which poses a safety risk.

[0005] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide a pneumatic winch with a protective cover on the drum frame. When the device is winding the wire rope, the drum frame is covered by the protective cover, which can improve the safety of the wire rope winding process. In addition, a limiting device is set on the drum frame to prevent the wire rope from over-winding and overflowing from the drum frame.

[0007] The technical solution adopted in this utility model is:

[0008] A pneumatic winch includes a control motor, a base, and a winding device mounted on the base. The winding device, mounted on the base, includes a protective cover and a drum frame. The protective cover is fixed to the side rails on both sides. The drum frame is located inside the protective cover and is fitted onto a rotating shaft between the two side rails in the middle. A limiting device is provided inside the drum frame, and the limiting device presses against the wire rope being wound on the drum frame.

[0009] By adopting the above structure and installing a protective cover on the drum frame, the drum frame is covered inside the protective cover when the device is winding the wire rope, which can improve the safety of the wire rope winding process. In addition, the installation of a limiting device on the drum frame can prevent the wire rope from over-winding and overflowing from the drum frame.

[0010] Preferably, the limiting device includes a limiting pressure plate and a return spring. The limiting pressure plate is horizontally disposed inside the guard plates on both sides of the drum frame. The end of the limiting pressure plate is stabilized by the return spring, which is located at both ends of the limiting pressure plate and is disposed near the outer edge of the guard plate.

[0011] By adopting the above structure, a limiting device is set by a limiting pressure plate and a return spring. The structure is simple and easy to operate, and it can prevent the wire rope from overflowing the drum frame when winding.

[0012] Preferably, the drum frame includes two side guards and a central drum, the surface of which is provided with an arc-shaped groove, and the drum is sleeved on a pivot between the two side guards.

[0013] By adopting the above structure and setting the arc-shaped slot, the wire rope winding is more uniform.

[0014] Preferably, the inner sides of the guard plates on both sides of the drum frame are provided with limiting slots, and the ends of the limiting pressure plates on both sides are movably locked in the limiting slots by the return springs. The edge of the guard plate is provided with a pressure alarm at the bottom of the return spring.

[0015] By adopting the above structure, the limiting pressure plate is fixed by the return spring and can move outward as the wire rope is wound up. The pressure of the return spring is monitored by the pressure alarm to limit the amount of wire rope winding.

[0016] Preferably, the side panels are vertically fixed to the base, and a pivot is provided between the side panels. The protective cover is fitted inside the two side panels and rests on the pivot. The protective cover is a metal cover and is fixed to the side panel by bolts. The side of the protective cover has a rope outlet.

[0017] By adopting the above structure, the protective cover is fixed to the two side plates with bolts, and the structure is stable.

[0018] Preferably, one end of the rotating shaft is connected to a control motor located outside the side panel, and the control motor is equipped with a control handle.

[0019] Preferably, the control motor is connected to the pneumatic triplet via a hose.

[0020] By adopting the above structure, the device is controlled by a pneumatic triplet and a control motor, making operation more convenient.

[0021] Compared with the prior art, this utility model has the following advantages:

[0022] 1. The device of this utility model is equipped with a protective cover on the drum frame. When the device is winding the wire rope, the drum frame is covered inside the protective cover, which can improve the safety of the wire rope winding process. In addition, the device on the drum frame is equipped with a limiting device to prevent the wire rope from over-winding and overflowing from the drum frame.

[0023] 2. The device of this utility model sets a limiting device through a limiting pressure plate and a return spring. It has a simple structure and is easy to operate. The limiting pressure plate is fixed by the return spring and can move outward as the wire rope is wound. The pressure of the return spring is monitored by a pressure alarm, which can prevent the wire rope from overflowing the drum frame during winding and limit the amount of wire rope winding.

[0024] 3. The protective cover of this utility model device is fixed to the two side plates with bolts, which makes the structure stable. The device is controlled by a pneumatic triple unit and a control motor, making operation more convenient. Attached Figure Description

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a top view of the present invention;

[0028] Figure 3 This is a side view of the present invention;

[0029] Figure 4 This is a schematic diagram of the upper limit device for the drum rack of this utility model.

[0030] The components include: 1. Control handle; 2. Side panel; 3. Protective cover; 4. Drum rack; 5. Drum; 6. Guard plate; 7. Wire rope; 8. Base; 9. Control motor; 10. Hose; 11. Arc-shaped slot; 12. Rope outlet; 13. Pneumatic triplet; 14. Limiting device; 15. Limiting pressure plate; 16. Return spring; 17. Limiting slot; 18. Rotating shaft; 19. Pressure alarm. Implementation

[0031] like Figure 1-4 As shown, a pneumatic winch includes a control motor 9, a base 8, and a winding device mounted on the base 8. The winding device, mounted on the base 8, includes a protective cover 3 and a drum frame 4. The protective cover 3 is fixed to the side rails 2 on both sides. The drum frame 4 is located inside the protective cover 3 and is fitted in the middle onto a rotating shaft 18 between the two side rails 2. A limiting device 14 is provided inside the drum frame 4, which presses against the wire rope 7 being wound on the drum frame 4. The protective cover 3 on the drum frame 4 improves safety during the winding and unwinding of the wire rope 7 by covering the drum frame 4 with the protective cover 3 during the winding of the wire rope 7. Furthermore, the limiting device 14 on the drum frame 4 prevents the wire rope 7 from over-winding and overflowing from the drum frame 4.

[0032] The limiting device 14 includes a limiting pressure plate 15 and a return spring 16. The limiting pressure plate 15 is laterally disposed within the guard plates 6 on both sides of the drum frame 4. The ends of the limiting pressure plate 15 are stabilized by the return spring 16, which is located at both ends of the limiting pressure plate 15 and is positioned near the outer edge of the guard plate 6. The drum frame 4 includes two side guard plates 6 and a central drum 5. The surface of the drum 5 is provided with an arc-shaped groove 11, and the drum 5 is sleeved on the pivot 18 between the two side guard plates 2. The inner sides of the guard plates 6 on both sides of the drum frame 4 are provided with limiting slots 17. The ends of the limiting pressure plate 15 are movably locked into the limiting slots 17 by the return spring 16. A pressure alarm 19 is provided at the bottom of the return spring 16 on the edge of the guard plate 6. The device is equipped with a limiting device through a limiting pressure plate 15 and a return spring 16. It has a simple structure and is easy to operate. The limiting pressure plate 15 is fixed by the return spring 16 and can move outward as the wire rope 7 is wound. The pressure of the return spring 16 is monitored by the pressure alarm 19, which can prevent the wire rope 7 from overflowing the drum frame 4 when it is wound and limit the amount of wire rope 7 wound.

[0033] The side panels 2 are vertically fixed to the base 8. A pivot 18 is installed between the side panels 2. A protective cover 3 is fitted inside the two side panels 2 and rests on the pivot 18. The protective cover 3 is a metal cover and is fixed to the side panels 2 with bolts. A rope outlet 12 is provided on the side of the protective cover 3. One end of the pivot 18 is connected to a control motor 9 located outside the side panels 2. The control motor 9 is equipped with a control handle 1. The control motor 9 is connected to a pneumatic triplet 13 through a flexible hose 10. The protective cover 3 is fixed to the two side panels 2 with bolts, ensuring structural stability. The device is controlled by the pneumatic triplet 13 and the control motor 9, making operation more convenient.

[0034] When using this device, ensure that the hose 10, pneumatic triplet 13, and control motor 9 are accurately connected, and ensure that the limit device 14 can be used smoothly. Fix the protective cover 3 to the side plate with bolts, and then adjust the control handle 1 to wind up the wire rope 7. When the pressure alarm 19 is subjected to pressure to the critical value, it will sound an alarm, and the winding is completed.

[0035] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should be included within the scope of protection defined by the claims of the present utility model.

Claims

1. A pneumatic winch, comprising a control motor, a base, and a winding device disposed on the base, characterized in that: The winding device is mounted on the base and includes a protective cover and a drum frame. The protective cover is fixed to the side rails on both sides. The drum frame is placed inside the protective cover and is fitted in the middle onto the pivot between the two side rails. A limiting device is provided inside the drum frame, and the limiting device presses against the wire rope being wound on the drum frame.

2. A pneumatic winch according to claim 1, characterized in that: The limiting device includes a limiting pressure plate and a return spring. The limiting pressure plate is horizontally disposed inside the guard plates on both sides of the drum frame. The end of the limiting pressure plate is stabilized by the return spring, which is located at both ends of the limiting pressure plate and is set near the outer edge of the guard plate.

3. A pneumatic winch according to claim 1, characterized in that: The drum frame includes two side guards and a central drum. The surface of the drum is provided with an arc-shaped groove, and the drum is sleeved on the pivot between the two side guards.

4. A pneumatic winch according to claim 3, characterized in that: The inner sides of the guard plates on both sides of the drum frame are provided with limiting slots. The ends of the limiting pressure plates on both sides are movably locked in the limiting slots by the return springs. The edge of the guard plate is provided with a pressure alarm at the bottom of the return spring.

5. A pneumatic winch according to claim 1, characterized in that: The side rails are vertically fixed to the base, and a pivot is provided between the side rails. The protective cover is fitted inside the two side rails and rests on the pivot. The protective cover is a metal cover and is fixed to the side panel by bolts. The side of the protective cover has a rope outlet.

6. A pneumatic winch according to claim 1, characterized in that: One end of the rotating shaft is connected to a control motor located outside the side rail, and the control motor is equipped with a control handle.

7. A pneumatic winch according to claim 6, characterized in that: The control motor is connected to the pneumatic triple unit via a hose.

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