Automatic control stop device for winch

Abstract

The utility model discloses an automatic control stop device for a winch, which comprises a brake assembly, the brake assembly comprises a brake bottom plate, a ratchet gear, a pawl and a pawl rising and falling control unit, the brake bottom plate is fixedly connected with a winch support, and the ratchet gear is fixedly connected with a winch drum; one end of the pawl is mounted on the brake bottom plate through a pawl connecting seat and rotates relative to the pawl connecting seat, and the other end of the pawl is matched with the ratchet gear; the pawl rising and falling control unit is installed on the brake bottom plate through the connecting base, one end of the pawl rising and falling control unit rotates relative to the connecting base, and the other end of the pawl rising and falling control unit is connected with the pawl. The brake function is achieved through the ratchet wheel and the ratchet structure, the problem that intermittent motion is difficult to achieve through automatic control is solved, the space size of a winch brake system is optimized, and the problem that a brake pad is abraded and replaced frequently is solved. And through cooperation of the electric cylinder and the gas spring, the reliability of the braking effect of the device is guaranteed, the structure is simple, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to ship winch brake technology field especially a kind of automatic control stop device for winch. BACKGROUND

[0002] Winch is widely used in marine scientific investigation, and can be used in underwater tow system, offshore drilling, deep sea oil and gas exploration and development and scientific investigation and other marine operating environment, and different winches have different use purposes. During the use of winch, brake system is an important system to ensure safety, and general winch brake system includes motor brake and mechanical brake, motor brake mainly relies on brake motor, and the drum is braked by speed reducer, but the response is slow when winch is intermittently started and stopped by this kind of brake mode;Mechanical brake mainly adopts band brake, but the design size of band brake is too large, and brake pad needs to be frequently replaced, and the applicability for large winch is poor. SUMMARY

[0003] In order to overcome the above problems existing in the prior art, the utility model provides an automatic control stop device for winch.

[0004] The technical scheme adopted by the utility model to solve its technical problems is: an automatic control stop device for winch, comprising a brake assembly, the brake assembly comprises a brake base plate, a ratchet gear, a pawl, a pawl lifting control unit, the brake base plate is fixedly connected with a winch support, and the ratchet gear is fixedly connected with a winch drum;One end of the pawl is installed on the brake base plate through a pawl connecting seat, and rotates relative to the pawl connecting seat, and the other end is matched with the ratchet gear;The pawl lifting control unit is installed on the brake base plate through a connecting seat, one end of the pawl lifting control unit rotates relative to the connecting seat, and the other end is connected with the pawl.

[0005] The automatic control stop device for winch, reinforcing ribs are arranged on the ratchet gear along the ratchet.

[0006] The automatic control stop device for winch, the pawl lifting control unit is one of electric cylinder or air cylinder.

[0007] The automatic control stop device for winch, an arc-shaped sliding groove is arranged on the pawl, and the end of the pawl lifting control unit away from the brake base plate is fixedly connected with a pin shaft sliding along the arc-shaped sliding groove.

[0008] The automatic control stop device for winch, an air spring is further arranged on the pawl, the bottom of the air spring is connected with the brake base plate through an air spring connecting seat, the bottom of the air spring rotates relative to the air spring connecting seat, and the other end of the air spring is connected with the pawl.

[0009] The pawl is provided with an ear, and the top end of the gas spring is connected with the ear.

[0010] The utility model discloses the beneficial effect is, the utility model discloses a brake function is realized through ratchet wheel and ratchet structure, solves intermittent motion and is difficult to realize through automation control, optimizes the space size of winch brake system, avoids the problem of frequent replacement of brake pad wear. Through the cooperation of electric cylinder and gas spring, the reliability of the device braking effect is guaranteed. The utility model discloses simple structure, and the practicality is strong. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the utility model schematic diagram;

[0012] Figure 2 It is the utility model brake assembly part schematic diagram;

[0013] Figure 3 It is the utility model braking state schematic diagram;

[0014] Figure 4 It is the utility model release brake state schematic diagram.

[0015] Among them, 1. ratchet gear, 2. winch drum, 3. pawl, 4. gas spring, 5. pawl lift control unit, 6. brake base plate, 7. pawl pin shaft, 8. arc slide groove. DETAILED DESCRIPTION

[0016] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model is explained in detail below in combination with the drawings and specific embodiments.

[0017] As Figures 1-2 Shown, the embodiment discloses an automatic control stopping device for winch, including brake assembly, brake assembly includes brake base plate 6, ratchet gear 1, pawl 3, pawl lift control unit 5, gas spring 4, the bottom of gas spring 4 is connected with brake base plate through gas spring connecting seat, the bottom of gas spring is connected with gas spring connecting seat through gas spring pin shaft, gas spring can rotate around pin shaft, the other end of gas spring is connected with pawl 3. Brake base plate 6 is welded with winch support, and ratchet gear 1 is fixedly connected with winch drum 2. Pawl connecting seat is welded on brake base plate, one end of pawl 3 is connected with pawl connecting seat through pawl pin shaft 7, and pawl 3 can rotate around pawl pin shaft, and the other end of pawl is matched with ratchet gear. The pawl lift control unit is installed on the brake base plate through the connecting seat, one end of the pawl lift control unit is rotated relative to the connecting seat, and the other end is connected with the pawl.

[0018] In the embodiment, an ear is welded on the pawl, and the top end of the gas spring is connected with the ear.

[0019] In order to ensure the reliability of the braking unit, prevent the large winch from being subjected to a large force and causing the braking device to fail, a reinforcing rib is arranged on the ratchet wheel along the ratchet.

[0020] The pawl lifting control unit is an electric cylinder or a pneumatic cylinder, and in the embodiment, the pawl lifting control unit is an electric cylinder. An arc-shaped sliding groove is arranged on the pawl, and the extension rod of the electric cylinder is fixedly connected with a pin shaft sliding along the arc-shaped sliding groove 8. When the extension rod is actuated, the pawl can be rotated.

[0021] The working process of the automatic control stopping device in the embodiment is as follows: when the winch needs to be braked during stopping, the stopping device in the braking state is controlled by the console to implement the ratchet braking, at this time, the extension rod of the electric cylinder is extended, the pawl is rotated around the pawl pin shaft under the pushing of the air spring and the extension rod of the electric cylinder, when the extension rod of the electric cylinder is completely extended, the pawl is always pushed by the air spring, so that the pawl is tightly attached to the ratchet of the ratchet wheel, and the braking can be implemented, at this time, the winch system is locked. Figure 3

[0022] When the winch needs to be unbraked, the stopping device in the unbraking state is controlled by the console to control the extension rod of the electric cylinder to be retracted, and the pawl is pulled away from the ratchet of the ratchet wheel, when the extension rod of the electric cylinder is completely retracted, the pawl is completely separated from the ratchet, at this time, the winch system is unbraked. Figure 4

[0023] The above embodiment is only an exemplary embodiment of the utility model, and is not used to limit the utility model. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the spirit and protection scope of the utility model, and the modification or equivalent replacement should also be regarded as falling within the protection scope of the utility model.​​

Claims

1. An automatic controlled stop device for a winch, characterized in that, The brake assembly comprises a brake base plate, a ratchet gear, a pawl, a pawl lifting control unit, the brake base plate is fixedly connected with a winch support, and the ratchet gear is fixedly connected with a winch drum.

2. An automatic controlled stop device for a winch as claimed in claim 1, characterised in that, The ratchet gear is provided with a reinforcing rib along the ratchet.

3. An automatic controlled stop device for a winch as claimed in claim 1, wherein, The pawl lifting control unit is one of an electric cylinder or a pneumatic cylinder.

4. An automatic controlled stop device for a winch as claimed in claim 1, wherein, The pawl is provided with an arc-shaped sliding groove, and the end of the pawl lifting control unit away from the brake base plate is fixedly connected with a pin shaft sliding along the arc-shaped sliding groove.

5. An automatic controlled stop device for a winch as claimed in claim 1, wherein, The pawl is further provided with a gas spring, the bottom of the gas spring is connected with the brake base plate through a gas spring connecting seat, the bottom of the gas spring rotates relative to the gas spring connecting seat, and the other end of the gas spring is connected with the pawl.

6. An automatic controlled stop device for a winch as claimed in claim 5, characterised in that, The pawl is provided with an eye, and the top end of the gas spring is connected with the eye.

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