Cable winch structure of take-up device

Abstract

The utility model belongs to the technical field of cable winding equipment, and particularly relates to a cable winch structure of a take-up device, which comprises a box body, a winch used for winding a cable is arranged in the box body, a pressure spring shaft sleeve is arranged on the outer wall of the box body in a penetrating and sliding manner, and the outer wall of the pressure spring shaft sleeve extends into the box body and is rotatably provided with a driven gear. A round groove is formed in one side of the driven gear, a ratchet wheel is fixed to the position, located in the round groove, of the outer wall of the pressure spring shaft sleeve, a plurality of pawls matched with the ratchet wheel are arranged on the inner wall of the round groove in the circumferential direction, friction plates are arranged on the outer wall of the pressure spring shaft sleeve and the outer wall of the winch, and the two friction plates make contact with each other in a friction mode. One end of an input shaft of the winch penetrates through the pressure spring shaft sleeve and is provided with an adjusting mechanism; according to the self-adaptive cable take-up and pay-off device, self-adaptive cable take-up and pay-off can be achieved through gear-ratchet-friction plate transmission, and therefore the function of protecting the cable is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable winding equipment technical field, concretely relates to a take -up cable reel cable capstan structure. BACKGROUND

[0002] The cable capstan is a kind of equipment for winding and storing cable, usually by reel, support, driving device etc. It is widely used in power, communication, construction etc. industry, and cable capstan can effectively arrange cable, prevent its disorderly winding, improve work efficiency, and also facilitate the transportation and storage of cable, protect cable from being damaged.

[0003] The existing technology has the following problems:

[0004] At present, the winding and unwinding speed of cable capstan is difficult to adaptively adjust according to the actual stress and working condition of cable, so that cable is prone to excessive tension or relaxation during winding and unwinding, and further causes the damage such as abrasion and fracture of cable, which affects the service life of cable and the normal progress of project. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a take -up cable reel cable capstan structure, can realize self -adaptation winding and unwinding cable by gear-ratchet-friction plate transmission, to play the role of protecting cable.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A take -up cable reel cable capstan structure, including the box, the inside of the box is provided with the capstan for cable winding, the outer wall of the box is slidably provided with the compression spring shaft sleeve, the outer wall of the compression spring shaft sleeve extends into the box and is rotatably installed with driven gear, the side of the driven gear is provided with a circular recess, the outer wall of the compression spring shaft sleeve and located in the circular recess is fixed with ratchet wheel, the inner wall of the circular recess is provided with a plurality of pawls matched with ratchet wheel along the circumferential direction, the outer wall of the compression spring shaft sleeve and capstan is provided with friction plate, and the two friction plates are rubbed and contacted with each other, the input shaft of the capstan is provided with adjusting mechanism through the inside of compression spring shaft sleeve.

[0008] The adjusting mechanism includes adjusting compression spring that is sleeved on the input shaft of the capstan, and the outer wall of the input shaft of the capstan is threadedly connected with adjusting nut that can adjust the adjusting compression spring.

[0009] The outer wall of the box is provided with motor, and the output shaft of the motor is provided with driving gear engaged with driven gear.

[0010] The pawl is rotatably installed in the circular recess by torsional spring, and the end of the pawl is ninety degrees and engaged with the ratchet wheel.

[0011] Reinforcing rods are arranged between the interiors of the box.

[0012] The utility model discloses the technical effect achieved is:

[0013] The utility model discloses the motor drive is used, passes through gear - ratchet - friction plate transmission, realizes the self -adaptation adjustment of cable take -up process, and the take -up speed is automatically adjusted according to the stress of cable, and the cable is effectively protected from being over -stretched or relaxed, prolongs the service life of cable, utilizes the cable gravity itself and releases the wire, reduces the dependence of external power, reduces energy consumption and equipment operation cost, and the adjusting mechanism that sets up can flexibly adjust the friction between friction plate, makes the equipment applicable to a plurality of different types and specifications of cable, improves the versatility and practicality of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the front view three -dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the internal structure schematic diagram of the utility model;

[0016] Figure 3 It is the Figure 2 The A area amplification structure schematic diagram of in;

[0017] In the drawings, the component list that each sign represents is as follows:

[0018] 1, box;2, capstan;3, motor;4, driving gear;5, driven gear;6, pawl;7, adjusting nut;8, adjusting compression spring;9, compression spring shaft sleeve;10, ratchet;11, friction plate. DETAILED DESCRIPTION

[0019] In order to make the purpose and the advantage of the utility model more clearly clear, the following is specifically explained to the utility model with example. It is understood that the following text only uses to describe one or several specific implementation modes of the utility model, and does not strictly limit the protection range of the utility model specific request.

[0020] As Figures 1-3As shown, a cable reel structure includes a housing 1, with a reel 2 for cable winding inside the housing 1. A spring sleeve 9 is slidably mounted through the outer wall of the housing 1. A driven gear 5 is rotatably mounted inside the housing 1 on the outer wall of the spring sleeve 9. A circular groove is formed on one side of the driven gear 5. A ratchet 10 is fixed on the outer wall of the spring sleeve 9 within the circular groove. Multiple pawls 6 that cooperate with the ratchet 10 are arranged circumferentially on the inner wall of the circular groove. Friction plates 11 are provided on the outer walls of both the spring sleeve 9 and the reel 2, and the two friction plates 11 are in contact with each other through friction. An adjustment mechanism is provided at one end of the input shaft of the reel 2, passing through the inside of the spring sleeve 9. The adjustment mechanism includes an adjusting spring 8 sleeved on the input shaft of the reel 2. An adjusting nut 7 that can adjust the adjusting spring 8 is threaded onto the outer wall of the input shaft of the reel 2. A motor 3 is provided on the outer wall of the housing 1, and a drive gear 4 that meshes with the driven gear 5 is provided on the output shaft of the motor 3.

[0021] According to the above structure, when the cable winch 2 is unloading, the motor 3 rotates forward. At this time, the driven gear 5 cannot drive the ratchet 10 to rotate the friction plate 11, and thus cannot drive the cable winch to rotate. At this time, the weight of the cable is used as the power to drive the cable winch 2 to rotate. When the cable winch 2 is retracting, the motor 3 rotates in reverse. It can drive the driven gear 5 to rotate through the driving gear 4. The driven gear 5 drives multiple pawls 6 to rotate. The pawls 6 cooperate with the ratchet 10 to drive the ratchet 10 to rotate. The ratchet 10 drives the rotating friction plate 11. Through the frictional contact of the two friction plates 11, the retracting winch 2 is driven to rotate in the opposite direction. When the force on the cable is less than the frictional force of the two friction plates 11, the cable will rotate at the speed driven by the motor 3. When the force on the cable is greater than the frictional force of the two friction plates 11, the cable winch 2 will slip, thereby reducing the retracting speed. By rotating the adjusting nut 7, the pitch of the adjusting spring 8 can be adjusted, thereby adjusting the mutual squeezing force of the two friction plates 11 and changing their frictional force, improving the flexibility of equipment use.

[0022] like Figures 2-3 As shown, the pawl 6 is rotatably mounted in the circular groove by a torsion spring, and the end of the pawl 6 is at a 90-degree angle to engage with the ratchet 10.

[0023] Based on the above structure, the pawl 6 is designed to engage smoothly with the ratchet 10 when it moves laterally, thus improving the practicality of the device.

[0024] like Figure 1 As shown, reinforcing bars are installed inside the housing 1, which improves the strength of the housing 1 and increases the practicality of the equipment.

[0025] The working principle of this utility model is as follows: When it is necessary to let out the cable, the motor 3 is started to rotate forward. At this time, the driven gear 5 rotates idly and cannot drive the ratchet 10 and the friction plate 11 to rotate. The cable drives the winch 2 to rotate and let out the cable under its own gravity. When it is necessary to reel in the cable, the motor 3 is started to rotate in reverse. The motor 3 drives the driven gear 5 to rotate through the driving gear 4. The driven gear 5 drives the pawl 6 to rotate. The pawl 6 drives the ratchet 10 to rotate, which in turn drives the friction plate 11 to rotate. The friction between the two friction plates 11 drives the winch 2 to rotate in the opposite direction to reel in the cable. During the reeling process, if the cable is subjected to too much force, exceeding the friction between the two friction plates 11, the winch 2 will slip, reducing the reeling speed and protecting the cable from being overstretched.

[0026] According to actual working needs, the pitch of the adjusting spring 8 can be adjusted by rotating the adjusting nut 7, thereby changing the squeezing force and friction between the two friction plates 11 to adapt to different cable winding and unwinding conditions.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A take-up reel cable capstan structure comprising a housing (1) characterised in that: The inside of the box (1) is provided with a winch (2) for cable winding, the outer wall of the box (1) is provided with a compression spring shaft sleeve (9) sliding through, the outer wall of the compression spring shaft sleeve (9) extends into the box (1) and is rotatably installed with a driven gear (5), one side of the driven gear (5) is provided with a circular recess, the outer wall of the compression spring shaft sleeve (9) and located in the circular recess is fixed with a ratchet wheel (10), the inner wall of the circular recess is provided with a plurality of pawls (6) matched with the ratchet wheel (10) in the circumferential direction, the outer walls of the compression spring shaft sleeve (9) and the winch (2) are provided with friction plates (11), and the two friction plates (11) are in friction contact with each other, one end of the input shaft of the winch (2) is provided with an adjusting mechanism through the inside of the compression spring shaft sleeve (9).

2. A line take-up cable capstan structure according to claim 1 wherein: The adjusting mechanism comprises an adjusting compression spring (8) sleeved on the input shaft of the winch (2), and the outer wall of the input shaft of the winch (2) is threadedly connected with an adjusting nut (7) capable of adjusting the adjusting compression spring (8).

3. A line take-up cable capstan structure according to claim 1 wherein: The outer wall of the box (1) is provided with a motor (3), and the output shaft of the motor (3) is provided with a driving gear (4) engaged with the driven gear (5).

4. A line take-up cable capstan structure according to claim 1 wherein: The pawl (6) is rotatably installed in the circular recess through a torsion spring, and the end of the pawl (6) is ninety degrees and engaged with the ratchet wheel (10).

5. A line take-up cable capstan structure according to claim 1 wherein: The inside of the box (1) is provided with a reinforcing rod.

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