CN212740544U

CN212740544U - Chain driving suspender machine special for stage

Info

Publication number: CN212740544U
Application number: CN202021707723.2U
Authority: CN
Inventors: 胡小华
Original assignee: Hangzhou Yuhua Stage Equipment Co ltd
Current assignee: Hangzhou Yuhua Stage Equipment Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-19
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a special chain drive jib machine of stage, which comprises a frame (1), the one end of frame (1) is equipped with motor (2), the other end fixedly connected with fixed pulley group (3) of frame (1), be equipped with between motor (2) and fixed pulley group (3) along movable dolly (4) that frame (1) removed, be equipped with movable pulley group on movable dolly (4), the output of motor (2) is connected with reel (22) through reduction gear (21), be connected through double-row chain (23) between the one end of reel (22) and movable dolly (4), it has wire rope (41) to convolute between the other end of movable dolly (4) and fixed pulley group (3), wire rope (41) are walked around fixed pulley group (3) and downwardly extending, end-to-end connection jib (5) of wire rope (41). The utility model has the characteristics of occupation space is little, application scope is wide, wire rope safety in utilization is high.

Description

Chain driving suspender machine special for stage

Technical Field

The utility model relates to a jib machine, especially a special chain drive jib machine of stage.

Background

At present, most of the known stage boom machines are installed on a power platform, a steering wheel set is additionally arranged to steer a steel wire rope to a lifting point wheel, and then the steel wire rope is used for hoisting lamplight, scenery, curtain and the like required by stage performance. The existing stage suspender machine needs a large installation space, the space requirement is not available for every building site, and particularly, the space of stages in multi-layer buildings is limited, so that the sites cannot be selected by the stage suspender machine and are limited in use; in addition, in the structural form of the existing stage suspender, steel wire ropes are usually adopted for hoisting objects, the steel wire ropes are stacked and wound on the drum in multiple layers, the steel wire ropes between the layers are not regularly arranged and are mutually extruded and embedded, the abrasion is easily generated in the extrusion process, the service life of the steel wire ropes is shortened, the steel wire ropes can be broken by friction seriously, safety accidents are caused, the steel wire ropes are also easily separated from the drum in the operation process, and the reliability and the safety of the steel wire ropes in the operation process are reduced. Therefore, the existing stage suspender has the problems of large occupied space, limited use and low use safety of the steel wire rope.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special chain drive jib machine of stage. The utility model has the characteristics of occupation space is little, application scope is wide, wire rope safety in utilization is high.

The technical scheme of the utility model: special chain drive jib machine of stage, which comprises a frame, the one end of frame is equipped with the motor, the other end fixedly connected with fixed pulley group of frame, be equipped with the movable trolley that removes along the frame between motor and the fixed pulley group, be equipped with the running block on the movable trolley, the output of motor has the reel through retarder connection, be connected through the double-row chain between the one end of reel and movable trolley, it has wire rope to coil between the other end of movable trolley and the fixed pulley group, wire rope walks around fixed pulley group and downwardly extending, wire rope's end-to-end connection jib.

In the chain-driven boom machine special for the stage, the motor is a three-phase asynchronous electromagnetic braking motor, and the reducer is a worm gear-worm reducer.

In the stage-dedicated chain-driven boom machine, one end of the double-row chain is wound on the winding drum, and the other end of the double-row chain is wound around a movable pulley in the movable trolley and is fixedly connected with a fixing piece on the speed reducer.

In the chain-driven boom machine special for a stage, one end of the steel wire rope is connected with the positioning piece at the side of the fixed pulley block, and the other end of the steel wire rope sequentially bypasses the plurality of movable pulleys on the movable trolley and the plurality of fixed pulleys in the fixed pulley block.

In the aforementioned special chain drive jib machine for stage, be equipped with the bumper shock absorber between wire rope and the jib, the bumper shock absorber includes shell body and interior casing, is equipped with the shock pad between shell body and the interior casing, is equipped with a pair of fly leaf that distributes from top to bottom in the interior casing, is equipped with the last movable rod that stretches out the shell body on the fly leaf of upside, is equipped with the lower movable rod that stretches out the shell body on the fly leaf of downside, is equipped with the slider of sliding connection on the inner wall of casing both sides and including the distribution including between two fly leaves, all passes through spring coupling between slider and fly leaf and.

In the chain-driven hanging rod machine special for the stage, the inner shell is further internally provided with a hinged shaft, the hinged shaft is connected with connecting rods which are obliquely distributed through torsional springs, and two ends of each connecting rod are respectively connected with the sliding blocks on two sides.

Compared with the prior art, the double-row chain, the movable trolley, the fixed pulley block and the steel wire rope are arranged at the same height, the structure is compact, the occupied space is small, the installation space is not limited, the double-row chain, the movable trolley, the fixed pulley block and the steel wire rope can be used on stages at all positions, and the application range is wide; when the lifting device is used, the motor drives the double-row chain to drag the movable trolley to move on the frame, so that the steel wire rope is driven to drag the lifting rod to move up and down, the control is convenient, the steel wire rope is wound between the movable pulleys and the fixed pulleys, the multilayer overlapping winding condition does not exist, the mutual extrusion cannot be generated, the abrasion of the steel wire rope is avoided, the service life of the steel wire rope is prolonged, the phenomenon that the steel wire rope is disorderly grooved and separated in the operation process is also avoided, the use safety is improved, the noise is low in the working process, and the working is reliable.

Therefore, the utility model has the characteristics of occupation space is little, application scope is wide, wire rope safety in utilization is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of a linkage structure of a double-strand chain;

FIG. 3 is a schematic view of a connection structure of a steel wire rope;

FIG. 4 is a schematic view of the structure of the gantry;

fig. 5 is a schematic view of the structure of the shock absorber.

The labels in the figures are: 1. a frame; 2. an electric motor; 21. a speed reducer; 22. a reel; 23. double-row chains; 3. a fixed pulley block; 31. a positioning member; 4. a movable trolley; 41. a wire rope; 5. a boom; 6. a shock absorber; 61. an outer housing; 62. an inner housing; 621. a shock pad; 63. a movable plate; 64. an upper movable rod; 65. a movable rod is lowered; 66. a slider; 67. a spring; 68. hinging a shaft; 69. a connecting rod.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given.

As shown in fig. 1-5, the chain-driven boom machine special for stage comprises a frame 1, wherein a motor 2 is arranged at one end of the frame 1, a fixed pulley block 3 is fixedly connected at the other end of the frame 1, a movable trolley 4 moving along the frame 1 is arranged between the motor 2 and the fixed pulley block 3, a movable pulley block is arranged on the movable trolley 4, an output end of the motor 2 is connected with a winding drum 22 through a speed reducer 21, the winding drum 22 is connected with one end of the movable trolley 4 through a double-row chain 23, a steel wire rope 41 is wound between the other end of the movable trolley 4 and the fixed pulley block 3, the steel wire rope 41 bypasses the fixed pulley block 3 and extends downwards, and the tail.

The fixed pulley block 3 comprises a plurality of fixed pulleys, and the movable pulley block comprises a plurality of movable pulleys.

The motor 2 adopts a three-phase asynchronous electromagnetic braking motor, and the speed reducer 21 adopts a worm gear-worm speed reducer.

One end of the double-row chain 23 is wound on the winding drum 22, and the other end of the double-row chain 23 bypasses a movable pulley in the movable trolley 4 and is fixedly connected with a fixing piece on the speed reducer.

One end of the steel wire rope 41 is connected with the positioning part 31 at the side of the fixed pulley block 3, and the other end of the steel wire rope 41 sequentially bypasses a plurality of movable pulleys on the movable trolley 4 and a plurality of fixed pulleys in the fixed pulley block 3.

Be equipped with bumper shock absorber 6 between wire rope 41 and the jib 5, bumper shock absorber 6 includes shell body 61 and interior casing 62, is equipped with shock pad 621 between shell body 61 and the interior casing 62, is equipped with a pair of fly leaf 63 that distributes from top to bottom in the interior casing 62, is equipped with the last movable rod 64 that stretches out shell body 61 on the fly leaf 63 of upside, is equipped with the lower movable rod 65 that stretches out shell body 61 on the fly leaf of downside, is equipped with the slider 66 that distributes including casing 62 both sides and sliding connection on the inner wall of shell body 62 including between two fly leaves 63, all is connected through spring 67 between slider 66 and fly leaf 63 and the adjacent slider 66. A hinged shaft 68 is further arranged in the inner shell 62, a connecting rod 69 which is obliquely distributed is connected to the hinged shaft 68 through a torsion spring, and two ends of the connecting rod 69 are respectively connected with the sliding blocks 66 on two sides. In this embodiment, two connecting rods are adopted, and the two connecting rods are distributed in a crossed manner.

The sliding block 66 is slidably connected with the inner housing 62 through a dovetail groove or an I-shaped groove, and is connected with a connecting rod 69 through a spring 67, so that the sliding block 66 is prevented from being separated from the sliding groove.

The working principle is as follows: the double-row chain 23, the movable trolley 4, the fixed pulley block 3 and the steel wire rope 41 are arranged at the same height, the structure is compact, the occupied space is small, the installation space is not limited, the double-row chain can be used on stages at all positions, and the application range is wide; when the double-row chain type lifting device is used, the motor 2 drives the double-row chain 23 to drag the movable trolley 4 to move on the rack 1, so that the steel wire rope 41 is driven to drag the lifting rod 5 to move up and down, the control is convenient, the steel wire rope 41 is wound between the movable pulleys and the fixed pulleys, the multilayer overlapping winding condition does not exist, the mutual extrusion cannot be generated, the abrasion of the steel wire rope 41 is reduced, the service life of the steel wire rope 41 is prolonged, the phenomena of messy grooves and separation of the steel wire rope 41 in the operation process are avoided, the use safety is improved, the double braking is realized through the motor 2 and the speed reducer 21, and the safety. Further, a damper 6 is provided between the wire rope 41 and the boom 5, an upper movable rod 64 of the damper 6 is connected to the wire rope 41, a lower movable rod 65 is connected to the boom 5, and multiple damping is performed by a plurality of springs 67, torsion springs, and a damper pad 621 by cooperation of the springs 67, the link 69, and the slider 66. The whole boom machine has low noise, reliable working and running and good damping performance in the working process.

The part of the utility model not detailed is prior art.

Claims

1. Special chain drive jib machine of stage, its characterized in that: including frame (1), the one end of frame (1) is equipped with motor (2), the other end fixedly connected with fixed pulley group (3) of frame (1), be equipped with between motor (2) and fixed pulley group (3) along movable trolley (4) that frame (1) removed, be equipped with movable pulley group on movable trolley (4), the output of motor (2) is connected with reel (22) through reduction gear (21), be connected through double-row chain (23) between reel (22) and the one end of movable trolley (4), it has wire rope (41) to coil between the other end of movable trolley (4) and fixed pulley group (3), wire rope (41) are walked around fixed pulley group (3) and downwardly extending, end-to-end connection jib (5) of wire rope (41).

2. A stage-specific chain-driven boom machine according to claim 1, characterized in that: the motor (2) adopts a three-phase asynchronous electromagnetic braking motor, and the reducer (21) adopts a worm gear-worm reducer.

3. A stage-specific chain-driven boom machine according to claim 1, characterized in that: one end of the double-row chain (23) is wound on the winding drum (22), and the other end of the double-row chain (23) bypasses a movable pulley in the movable trolley (4) and is fixedly connected with a fixing piece on the speed reducer.

4. A stage-specific chain-driven boom machine according to claim 1, characterized in that: one end of the steel wire rope (41) is connected with the positioning part (31) on the side of the fixed pulley block (3), and the other end of the steel wire rope (41) sequentially bypasses a plurality of movable pulleys on the movable trolley (4) and a plurality of fixed pulleys in the fixed pulley block (3).

5. A stage-specific chain-driven boom machine according to claim 1, characterized in that: be equipped with between wire rope (41) and jib (5) bumper shock absorber (6), bumper shock absorber (6) are including shell body (61) and interior casing (62), are equipped with shock pad (621) between shell body (61) and interior casing (62), are equipped with a pair of fly leaf (63) in interior casing (62), are equipped with last movable rod (64) and lower movable rod (65) that stretch out shell body (61) on fly leaf (63) respectively, be equipped with between two fly leaf (63) distribute including casing (62) both sides and including on the inner wall of casing (62) sliding connection's slider (66), all be connected through spring (67) between slider (66) and fly leaf (63) and adjacent slider (66).

6. The stage-specific chain-driven boom machine according to claim 5, wherein: still be equipped with articulated shaft (68) in interior casing (62), be connected with connecting rod (69) that the slope distributes through the torsional spring on articulated shaft (68), the both ends of connecting rod (69) are connected with slider (66) of both sides respectively.