Single-drum multi-rope hoist

Abstract

The utility model relates to the technical field of hoist, disclose a single drum multiple rope hoist, its characterized in that, include: servo motor, servo motor output shaft is connected with transmission shaft through reduction gear box, a pair of support is fixed with reduction gear box, and a pair of support is detachably connected each other, and the operation interval is limited between a pair of support, the drum is rotatably connected in the operation interval, and the one end of transmission shaft enters the operation interval and is fixed with the drum, is equipped with a plurality of wire grooves on the outer circumferential side of drum, and the steel wire rope is wound in the wire groove, and the steel wire rope is distributed along the drum center and is stacked outward layer by layer, can provide the hanging structure of single drum multiple rope, realizes the stable winding and unwinding operation, and the overall structure is good, and the occupied space is small.

Description

Technical Field

[0001] This utility model relates to the field of winch technology, and in particular to a single-drum multi-rope winch. Background Technology

[0002] Light poles commonly found in theaters are typically hoisted using winches to ensure stability during hoisting and adjustment. However, most existing single-drum winches have long drum structures and can only wind and unwind a single wire rope. The wire rope is wound spirally along the drum, which causes the wire rope to sway during hoisting and winding due to the guide rod moving along the length of the single drum. This results in unstable raising and lowering of the light pole. Furthermore, the need for multiple wire ropes to secure the light pole, coupled with the long structure of most existing single-drum winches, increases the space occupied by the winch, wasting limited indoor space. Therefore, there is an urgent need for a single-drum, multi-rope winch to solve these problems. Utility Model Content

[0003] The purpose of this utility model is to provide a single-drum multi-rope winch to solve the problems existing in the prior art. It can provide a single-drum multi-rope suspension structure to achieve stable winding and unwinding operations, and has good overall structure and occupies little space.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides a single-drum multi-rope winch, characterized in that it includes: A servo motor, wherein the output shaft of the servo motor is connected to a drive shaft via a reduction gearbox; A pair of supports are fixedly connected to the reduction gearbox, and the pair of supports are detachably connected to each other, with a working area defined between the pair of supports; A drum is rotatably connected within the working area. One end of the drive shaft extends into the working area and is fixed to the drum. Several grooves are provided on the outer periphery of the drum, and steel wire ropes are wound in the grooves. The steel wire ropes are stacked layer by layer from the center of the drum outward.

[0005] Preferably, the width of the groove is 1.01 to 1.1 times the diameter of the wire rope.

[0006] Preferably, the support is an A-shaped structure, and a top rod is provided between the top and bottom sides of the pair of supports. The two ends of the top rod abut against the pair of supports. The two ends of the top rod are respectively fixed with screws. The two screws pass through the pair of supports in opposite directions, and the part of the screws extending out of the support is threaded with a nut.

[0007] Preferably, the top rod has an interchangeable length.

[0008] Preferably, the side wall of the reduction gearbox is fixedly connected to the adjacent support via a bushing, one end of the drive shaft extending out of the reduction gearbox passes through the bushing and is rotatably connected to the bushing, and the drive shaft is connected to the drum key.

[0009] Preferably, a flat key is fixedly connected to the portion of the drive shaft that extends into the working area, a through groove is provided in the center of the drum, a connecting sleeve is fixedly connected in the through groove, a keyway is provided on the inner ring side of the connecting sleeve, and the flat key is key-connected to the keyway.

[0010] Preferably, the two ends of the connecting sleeve pass through a pair of supports in opposite directions, and a roller bearing is fitted on the portion of the connecting sleeve that passes through the supports, with the outer ring side of the roller bearing being fixedly connected to the supports.

[0011] Preferably, the end of the drive shaft away from the support extends out of the reduction gearbox, a support plate is fixedly connected to the side wall of the reduction gearbox, a height limiter is installed on the support plate, and the stroke detection shaft of the height limiter is coaxially fixedly connected to the drive shaft.

[0012] The present invention discloses the following technical effects: This invention utilizes a servo motor and a reduction gearbox to achieve high torque driving the transmission shaft to rotate. A pair of supports are fixed to the reduction gearbox, and the transmission shaft, through its rotatable connection to the reduction gearbox, extends into the working area and rotates. The transmission shaft, fixed to the drum, drives the drum to rotate. Several grooves are opened on the outer circumference of the drum, and steel wire ropes are wound one-to-one in the grooves. The steel wire ropes are coiled outward from the center of the drum into the grooves, forming a layered stacking distribution. Compared with the traditional flat spiral winding method of winches, this invention can effectively store multiple steel wire ropes in the grooves and guide and position them during the winding and unwinding process. Multiple steel wire ropes are used to hoist and fix the suspended object, ensuring stability during the lifting and lowering process. Furthermore, it reduces the length of the drum structure required for winding the steel wire ropes, enabling multiple ropes to be produced simultaneously from a single drum, improving the overall structural integrity and reducing space occupation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a diagram showing the positional relationship between the servo motor and the reduction gearbox in this utility model; Figure 2 This is a diagram showing the positional relationship between the height limiter and the reduction gearbox in this utility model; Figure 3 This is a diagram showing the connection relationship between the central bushing and the support in this utility model. Figure 4 This is a diagram showing the connection relationship between the transmission rod and the connecting sleeve in this utility model; Figure 5 This is a diagram showing the connection relationship between the drum and the roller bearing in this utility model; Figure 6 This is a diagram showing the connection relationship between the wire rope and the drum in this utility model; The components include: 1. Servo motor; 2. Reduction gearbox; 3. Drive shaft; 4. Support; 5. Drum; 6. Wire rope; 7. Trough; 8. Top rod; 9. Screw; 10. Nut; 11. Bushing; 12. Flat key; 13. Connecting sleeve; 14. Roller bearing; 15. Support plate; and 16. Height limiter. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Reference Figures 1-6 This utility model provides a single-drum multi-rope winch, characterized in that it includes: Servo motor 1, the output shaft of servo motor 1 is connected to drive shaft 3 through reduction gearbox 2; A pair of supports 4 are fixedly connected to the reduction gearbox 2, and the pair of supports 4 are detachably connected to each other, with a working area defined between the pair of supports 4; The drum 5 is rotatably connected within the working area. One end of the drive shaft 3 extends into the working area and is fixed to the drum 5. Several grooves 7 are provided on the outer periphery of the drum 5. Steel wire ropes 6 are wound in the grooves 7 and are stacked layer by layer from the center of the drum 5 outward.

[0018] This invention utilizes a servo motor 1 and a reduction gearbox 2 to achieve high torque driving the rotation of the transmission shaft 3. A pair of supports 4 are fixed to the reduction gearbox 2, and the transmission shaft 3, through its rotatable connection with the reduction gearbox 2, extends into the working area and rotates. The transmission shaft 3 is fixed to the drum 5, driving the drum 5 to rotate. Several grooves 7 are opened on the outer periphery of the drum 5, and steel wire ropes 6 are wound one-to-one in the grooves 7. The steel wire ropes 6 are coiled outward from the center of the drum 5 in the grooves 7, forming a layered stacking distribution of steel wire ropes 6. Compared with the traditional flat spiral winding method of winches, this invention can effectively store multiple steel wire ropes 6 in the grooves 7, and the grooves 7 form a guide and positioning for the steel wire ropes 6 during the winding and unwinding process. Multiple steel wire ropes 6 are used to hoist and fix the suspended object, ensuring the stability of the object during lifting and lowering. Moreover, it reduces the length of the drum structure required for winding the steel wire ropes 6, realizes multiple ropes to be produced simultaneously on a single drum 5, improves the overall structure, and reduces space occupation.

[0019] Furthermore, the width of the trough 7 is 1.01 to 1.1 times the diameter of the wire rope 6.

[0020] By controlling the groove 7 to be 1.01 to 1.1 times the diameter of the wire rope 6, the groove 7 can just accommodate a single wire rope 6. The end of the wire rope 6 is fixed in the groove 7. During the winding and unwinding process, several wire ropes 6 extend synchronously along the outer periphery of the drum 5, realizing the smooth movement of the suspended items. Moreover, the wire ropes 6 are coiled and stacked in the groove 7, which effectively reduces the length of the wire rope 6 required to be wound on the drum 5.

[0021] Furthermore, the support 4 has an A-shaped structure, and a top rod 8 is provided between the top and bottom sides of the pair of supports 4. The two ends of the top rod 8 abut against the pair of supports 4, and the two ends of the top rod 8 are respectively fixed with screw rods 9. The two screw rods 9 pass through the pair of supports 4 in opposite directions, and the part of the screw rod 9 that extends out of the support 4 is threaded with a nut 10.

[0022] By designing the support 4 into an A-shaped structure and using the top rod 8 and the screws 9 and nuts 10 at both ends of the top rod 8 to fix the three ends of the support 4, and the top rod 8 and the support 4 are detachably connected, depending on the actual situation, at the position where the wire rope 6 extends relative to the drum 5, the adjacent top rod 8 makes sliding contact with the extended wire rope 6 to form a guiding effect when the wire rope 6 extends or extends from the drum 5, thereby improving the effect of smooth winding and unwinding of several wire ropes 6.

[0023] Understandably, the drum 5 and the push rod 8 do not come into contact.

[0024] In one embodiment of this technical solution, the bottom ends of a pair of supports 4 extend in a direction that approaches each other, thereby forming a horizontal support structure. By opening through holes in the support structure, it is easy to connect and fix the supports 4 to the indoor structure. A channel is formed between the bottom end of the supports 4 and the drum 5. With the help of the top rod 8, the wire rope 6 is limited at the top of the channel, so that the wire rope 6 can be wound and unwound along the channel, improving the stability of the wire rope 6 winding and unwound process.

[0025] Furthermore, the push rod 8 has an interchangeable length.

[0026] By increasing the length of the drum 5, the number of grooves 7 opened on the drum 5 is increased, and the spacing between the pair of supports 4 is also increased accordingly. By setting a top rod 8 with an interchangeable length, the spacing between the pair of supports 4 can be easily adjusted, ensuring the fixed stability of the pair of supports 4.

[0027] Furthermore, the side wall of the reduction gearbox 2 is fixed to the adjacent support 4 through the bushing 11, and the end of the drive shaft 3 extending out of the reduction gearbox 2 passes through the bushing 11 and is rotatably connected to the bushing 11. The drive shaft 3 is keyed to the drum 5.

[0028] The support 4 and the reduction gearbox 2 are fixedly connected by the bushing 11, and the pair of supports 4 are fixed to each other to form a fixed support for the drum 5. At the same time, the drive shaft 3 passes through the support 4 and the bushing 11, and is keyed to the drum 5 to realize that the drive shaft 3 drives the drum 5 to rotate and wind up and unwind the wire rope 6.

[0029] Furthermore, a flat key 12 is fixedly connected to the part of the drive shaft 3 that extends into the working area, and a through groove is opened in the center of the drum 5. A connecting sleeve 13 is fixedly connected in the through groove, and a keyway is opened on the inner ring side of the connecting sleeve 13. The flat key 12 is connected to the keyway.

[0030] By fixing a flat key 12 to the drive shaft 3 and opening a keyway in the connecting sleeve 13 fixed inside the drum 5, the drive shaft 3 and the connecting sleeve 13 are keyed together, so that the drive shaft 3 drives the drum 5 to rotate for winding and unwinding.

[0031] Furthermore, a pair of supports 4 are passed through the two ends of the connecting sleeve 13 in opposite directions, and a roller bearing 14 is sleeved on the part of the connecting sleeve 13 that passes through the support 4, with the outer ring side of the roller bearing 14 fixedly connected to the support 4.

[0032] By installing a roller bearing 14 on the outer sleeve of the connecting sleeve 13, the connecting sleeve 13 is rotatably connected to a pair of supports 4. Under the action of the key connection between the drive shaft 3 and the connecting sleeve 13, the connecting sleeve 13 drives the drum 5 to rotate and connect with the supports 4.

[0033] Furthermore, the end of the drive shaft 3 away from the support 4 extends out of the reduction gearbox 2. A support plate 15 is fixedly connected to the side wall of the reduction gearbox 2. A height limiter 16 is installed on the support plate 15. The stroke detection shaft of the height limiter 16 is coaxially fixedly connected to the drive shaft 3.

[0034] By fixing a support plate 15 to the side of the reduction gearbox 2 away from the support 4, the height limiter 16 is installed and fixed on the reduction gearbox 2 through the support plate 15, and the end of the drive shaft 3 away from the support 4 extends toward the height limiter 16. The stroke detection shaft of the height limiter 16 is fixed to the drive shaft 3 to realize the detection of the rotation stroke of the drive shaft 3. Combined with the start and stop control of the servo motor 1, the precise control of the winding and unwinding distance of the wire rope 6 is realized.

[0035] In this technical solution, an external computer is connected to the height limiter 16 and the servo motor 1 respectively. The height limiter 16 detects the rotation stroke of the transmission shaft 3. After the transmission shaft 3 rotates a corresponding number of times, the external computer can directly remotely control the servo motor 1 to shut down. The reduction gearbox 2 adopts a common worm gear reduction structure, which keeps the transmission shaft 3 stable after the servo motor 1 stops, thus stabilizing the drum 5.

[0036] This utility model provides a working principle for a single-drum multi-rope winch: By extending several steel wire ropes 6 vertically downwards from the winch onto the support 4 and fixing them to the light pole at the same horizontal height, and fixing the servo motor 1 to the indoor ceiling, the hanging height of the light pole can be adjusted. The support 4 is used to rotate and support the drum 5 and the connecting sleeve 13. The drive shaft 3 extends from the reduction gearbox 2 and is keyed to the connecting sleeve 13, so that the servo motor 1 drives the drum 5 to rotate for winding and unwinding. At the same time, by opening several grooves 7 on the side wall of the drum 5, and winding the steel wire rope 6 one by one in the grooves 7, unlike the traditional drum structure, the width of the grooves 7 is set to 1.05 times the width of the steel wire rope 6, so that the steel wire rope 6 is coiled and stacked in the grooves 7, reducing the space ratio of the drum structure, and using the grooves 7 to guide the winding and unwinding of the steel wire rope 6, meeting the requirement of providing a single drum 5 with multiple ropes for suspension, and achieving stable winding and unwinding.

[0037] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] 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. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A single-drum multi-rope winch, characterized in that, include: Servo motor (1), the output shaft of the servo motor (1) is connected to a transmission shaft (3) through a reduction gearbox (2); A pair of supports (4) are fixedly connected to the reduction gearbox (2), and the pair of supports (4) are detachably connected to each other, and a working area is defined between the pair of supports (4); The drum (5) is rotatably connected within the working area. One end of the drive shaft (3) extends into the working area and is fixed to the drum (5). Several grooves (7) are provided on the outer periphery of the drum (5). A steel wire rope (6) is wound in the groove (7), and the steel wire rope (6) is stacked layer by layer from the center of the drum (5) outward.

2. The single-drum multi-rope winch according to claim 1, characterized in that: The width of the groove (7) is 1.01 to 1.1 times the diameter of the wire rope (6).

3. The single-drum multi-rope winch according to claim 1, characterized in that: The support (4) has an A-shaped structure, and a top rod (8) is provided between the top and bottom sides of the pair of supports (4). The two ends of the top rod (8) abut against the pair of supports (4), and the two ends of the top rod (8) are respectively fixed with screws (9). The two screws (9) pass through the pair of supports (4) in opposite directions, and the part of the screw (9) extending out of the support (4) is threaded with a nut (10).

4. The single-drum multi-rope winch according to claim 3, characterized in that: The top rod (8) has an interchangeable length.

5. The single-drum multi-rope winch according to claim 1, characterized in that: The side wall of the reduction gearbox (2) is fixed to the adjacent support (4) through the bushing (11). The end of the drive shaft (3) extending out of the reduction gearbox (2) passes through the bushing (11) and is rotated with the bushing (11). The drive shaft (3) is keyed to the drum (5).

6. The single-drum multi-rope winch according to claim 1, characterized in that: A flat key (12) is fixedly connected to the part of the drive shaft (3) that extends into the working area. A through groove is provided in the center of the drum (5). A connecting sleeve (13) is fixedly connected in the through groove. A keyway is provided on the inner ring side of the connecting sleeve (13). The flat key (12) is key-connected to the keyway.

7. The single-drum multi-rope winch according to claim 6, characterized in that: The two ends of the connecting sleeve (13) pass through a pair of supports (4) in opposite directions, and a roller bearing (14) is sleeved on the part of the connecting sleeve (13) that passes through the support (4), and the outer ring side of the roller bearing (14) is fixedly connected to the support (4).

8. The single-drum multi-rope winch according to claim 1, characterized in that: The end of the drive shaft (3) away from the support (4) extends out of the reduction gearbox (2). A support plate (15) is fixedly connected to the side wall of the reduction gearbox (2). A height limiter (16) is installed on the support plate (15). The stroke detection shaft of the height limiter (16) is coaxially fixedly connected to the drive shaft (3).

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