Stable double-beam bridge crane

Abstract

The utility model relates to the technical field of cranes, in particular to a stable double-beam bridge crane. According to the technical scheme, the device comprises two fixing frames and two beam bridge rails fixedly installed between the two fixing frames, and hoisting assemblies and protection assemblies are arranged on the fixing frames; the hoisting assembly comprises a fixing box slidably mounted on the inner sides of the two beam bridge rails, two threaded rods are rotatably mounted between the two fixing frames and located on the inner sides of the two beam bridge rails correspondingly, and the front side and the rear side of the fixing box are fixedly connected with two fixing blocks correspondingly. Every two fixing blocks extend to the inner side of one beam bridge track and are installed on the beam bridge track in a sliding mode. According to the hoisting device, the beam bridge track, the track wheels, the threaded rod, the fixed disc and the movable column are matched with one another, so that the fixed box can move stably, the stability during use is improved, the winch can be stopped suddenly, and the situation that hoisted materials fall rapidly when the winch breaks down is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hoist, concretely to a stable double-beam bridge crane. BACKGROUND

[0002] The crane refers to the multi-action hoisting machinery of vertical lifting and horizontal carrying heavy objects in a certain range, also called the crane, when carrying the material, needs to utilize the crane to hoist the material, needs to utilize the stable double-beam bridge crane when hoisting the material.

[0003] In the prior art, the problems are as follows:

[0004] The traditional crane has poor stability, and when hoisting the material, the crane is prone to shaking, and when the winch fails, it is not convenient to quickly release the cable, and the winch is prone to failure, which causes the hoisted material to drop rapidly. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a stable double-beam bridge crane to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a stable double-beam bridge crane, comprising two fixed frames and two beam bridge tracks fixedly installed between the two fixed frames, the fixed frame is provided with a hoisting assembly and a protection assembly; the hoisting assembly comprises a fixed box slidingly installed on the inner side of the two beam bridge tracks, two threaded rods are rotatably installed between the two fixed frames, the two threaded rods are located on the inner side of the two beam bridge tracks, the front side and the rear side of the fixed box are fixedly connected with two fixed blocks, every two fixed blocks extend to the inner side of a beam bridge track and are slidingly installed between the beam bridge track, the top and the bottom of each fixed block are rotatably installed with two track wheels, the track wheels rollingly support the beam bridge track, each threaded rod penetrates through two fixed blocks and is threadedly connected with the fixed blocks, the inner side of the fixed box is fixedly installed with two support frames, a winch is rotatably installed between the two support frames, and a cable is wound around the periphery of the winch; the protection assembly comprises a fixed disc arranged on the front side of the support frame, the shaft center of the winch extends out of the support frame and is fixedly connected with the shaft center of the fixed disc, a plurality of movable grooves are formed in the inner side of the fixed disc, one movable column is movably installed in the inner side of each movable groove, a plurality of support rollers are rotatably installed on the inner wall of each movable groove, and the plurality of support rollers rollingly support the outer side of the movable column, a fixed seat is fixedly installed on the front side of the support frame, and the fixed seat is located above the fixed disc.

[0007] By driving two threaded rods to rotate synchronously, the fixed block can be driven to move left and right by meshing with the threaded rods, and the fixed box can be driven to move left and right synchronously, the track wheels can be driven to roll along the beam bridge track by the fixed block, the fixed box can be stably moved, and the stability during use is improved, the material to be hoisted is fixed at one end of the cable, the cable is reeled in by driving the winch to rotate, the material at one end of the cable is moved upward, hoisting operation of the material is facilitated, when the winch rotates slowly, the fixed disc is driven to rotate slowly synchronously, when the fixed disc drives the movable column to extend to the upper side, the movable column can be automatically retracted into the movable groove by the weight of the movable column, the fixed disc can be conveniently rotated, when the winch is loosened to the cable due to rapid rotation caused by failure, the fixed disc is driven to rotate rapidly synchronously, the centrifugal force generated by the movable column driven by the fixed disc can make the movable column extend out of the movable groove, the movable column is blocked by the fixed seat, the fixed disc is blocked synchronously, the winch can be stopped urgently, and the hoisted material is prevented from falling rapidly due to failure of the winch, and the movable column is supported by the supporting roller, and the movable column is prevented from being stuck.

[0008] Preferably, one end of the threaded rod extends to the inside of a fixed frame and is fixedly connected with the output end of the first motor, and the first motor is fixedly installed on the inside of the fixed frame through a mounting piece. One threaded rod can be driven to rotate by the first motor.

[0009] Preferably, the two threaded rods are connected through a belt drive, and the belt is located on the inside of a fixed frame. The two threaded rods can be driven to rotate synchronously through the belt drive.

[0010] Preferably, the shaft of the winch extends out of the rear side of the support frame and is fixedly connected with the output end of the second motor, and the second motor is fixedly installed on the rear side of the support frame through a mounting piece. The winch can be driven to rotate by the second motor.

[0011] Preferably, a fixed plate is fixedly installed at the inside end of each movable column, each fixed plate is located on the inside of a movable groove and is in sliding connection with the movable groove, a limiting frame is fixedly installed on the inner wall of each movable groove, and the limiting frame corresponds to the fixed plate. The movable column can be limited by the fixed plate and the limiting frame, and the movable column is prevented from being separated from the movable groove.

[0012] Preferably, one end of the cable is fixedly connected with the winch, and the other end of the cable extends out of the bottom of the fixed box. One end of the cable can be driven to move up and down by the winch when the winch rotates.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] Through the cooperation between the beam bridge track, the track wheel, the threaded rod, the fixed disc and the movable column, the threaded rod is driven to rotate, the fixed block is engaged with the threaded rod, the fixed block can be driven to move left and right, the fixed box is synchronously driven to move left and right, the track wheel can be driven to roll along the beam bridge track through the fixed block, the fixed box can be stably moved, the stability during use is improved, when the winch is rapidly rotated to release the cable due to failure, the fixed disc can be synchronously rapidly rotated, the movable column can be driven to generate centrifugal force by the fixed disc, the movable column can be extended out of the movable groove, the movable column can be blocked by the fixed seat, the fixed disc can be synchronously blocked, the winch can be rapidly stopped, and the hoisted material can be prevented from rapidly falling due to failure of the winch. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is a fixed frame overhead cut structure schematic diagram of the utility model;

[0017] Figure 3 It is a fixed box overhead cut structure schematic diagram of the utility model;

[0018] Figure 4 It is a support frame structure schematic diagram of the utility model;

[0019] Figure 5 It is a fixed disc cut structure schematic diagram of the utility model.

[0020] In the drawing: 1, fixed frame; 2, beam bridge track; 3, threaded rod; 4, fixed box; 5, fixed block; 6, first motor; 7, belt; 8, support frame; 9, winch; 10, cable; 11, second motor; 12, fixed seat; 13, fixed disc; 14, track wheel; 15, movable groove; 16, movable column; 17, fixed plate; 18, limiting frame; 19, support roller. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model is further explained below in combination with the drawings and specific embodiments.

[0022] The utility model provides Figures 1-5The stable double-beam bridge crane shown comprises two fixed frames 1 and two beam bridge tracks 2 fixedly installed between the two fixed frames 1, the fixed frame 1 is provided with a hoisting assembly and a protection assembly; the hoisting assembly comprises a fixed box 4 slidingly installed inside the two beam bridge tracks 2, two threaded rods 3 are rotatably installed between the two fixed frames 1, the two threaded rods 3 are respectively located inside the two beam bridge tracks 2, the front side and the rear side of the fixed box 4 are fixedly connected with two fixed blocks 5, every two fixed blocks 5 extend to the inside of one beam bridge track 2 and are slidingly installed with the beam bridge track 2, the top and the bottom of each fixed block 5 are rotatably installed with two track wheels 14, the track wheels 14 rollingly support the beam bridge track 2, each threaded rod 3 penetrates through the two fixed blocks 5 and is threadedly connected with the fixed blocks 5, the inside of the fixed box 4 is fixedly installed with two support frames 8, a winch 9 is rotatably installed between the two support frames 8, the periphery of the winch 9 is wound with a cable 10; the protection assembly comprises a fixed disc 13 arranged at the front side of the support frame 8, the shaft center of the winch 9 extends out of the support frame 8 and is fixedly connected with the shaft center of the fixed disc 13, the inside of the fixed disc 13 is provided with a plurality of movable grooves 15, the inside of each movable groove 15 is movably installed with a movable column 16, the inner wall of each movable groove 15 is rotatably installed with a plurality of support rollers 19, the plurality of support rollers 19 respectively rollingly support the outside of the movable column 16, the front side of the support frame 8 is fixedly installed with a fixed seat 12, the fixed seat 12 is located above the fixed disc 13;

[0023] One end of one threaded rod 3 extends to the inside of one fixed frame 1 and is fixedly connected with the output end of the first motor 6, the first motor 6 is fixedly installed inside the fixed frame 1 through a mounting piece;

[0024] The two threaded rods 3 are drivingly connected through a belt 7, the belt 7 is located inside one fixed frame 1;

[0025] The shaft center of the winch 9 extends out of the rear side of the support frame 8 and is fixedly connected with the output end of the second motor 11, the second motor 11 is fixedly installed at the rear side of the support frame 8 through a mounting piece;

[0026] The inside of one end of the plurality of movable columns 16 is fixedly installed with a fixed plate 17, each fixed plate 17 is located inside one movable groove 15 and is slidingly connected with the movable groove 15, the inner wall of each movable groove 15 is fixedly installed with a limiting frame 18, the limiting frame 18 corresponds to the fixed plate 17;

[0027] One end of the cable 10 is fixedly connected with the winch 9, the other end of the cable 10 extends out of the bottom of the fixed box 4.

[0028] The working principle of the stable double-beam bridge crane based on the embodiment is that: the first motor 6 is started to drive the threaded rod 3 to rotate, the belt 7 is used for transmission to make the two threaded rods 3 rotate synchronously, the fixed block 5 is engaged with the threaded rod 3 to drive the fixed block 5 to move left and right, synchronously drive the fixed box 4 to move left and right, the track wheel 14 is driven to roll along the beam bridge track 2 through the fixed block 5, the fixed box 4 is stably moved to improve the stability during use, and the material to be hoisted is fixed at one end of the cable 10;

[0029] The second motor 11 is started to drive the winch 9 to rotate, the winch 9 is used for winding the cable 10 to make one end of the cable 10 move upward to carry the material, so that the hoisting operation of the material is facilitated, and when the winch 9 rotates slowly, the fixed disc 13 is synchronously driven to rotate slowly, when the fixed disc 13 drives the movable column 16 to extend to the upper side, the movable column 16 is automatically retracted into the movable groove 15 by using the weight of the movable column 16, so that the rotation of the fixed disc 13 is facilitated;

[0030] When the winch 9 is rapidly rotated to release the cable 10 due to a fault, the fixed disc 13 is synchronously rapidly rotated, the movable column 16 is extended out of the movable groove 15 by the centrifugal force generated by the fixed disc 13, the movable column 16 is blocked by the fixed seat 12, the fixed disc 13 is synchronously blocked, the winch 9 is rapidly stopped, the hoisted material is prevented from rapidly falling due to the fault of the winch 9, and the movable column 16 is supported by the supporting roller 19 to prevent the movable column 16 from being stuck.

[0031] The above specific embodiments are only several preferred embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A stable double-beam bridge crane comprising two fixed frames (1) and two beam bridge tracks (2) fixedly installed between the two fixed frames (1), characterized in that: The fixed frame (1) is provided with a lifting assembly and a protection assembly; The lifting assembly comprises a fixed box (4) slidingly installed on the inner side of two beam bridge tracks (2), two threaded rods (3) rotatably installed between the two fixed frames (1), the two threaded rods (3) respectively located on the inner side of the two beam bridge tracks (2), two fixed blocks (5) fixedly connected to the front side and the rear side of the fixed box (4), every two fixed blocks (5) extending to the inner side of one beam bridge track (2) and slidingly installed between the fixed blocks (5) and the beam bridge track (2), two track wheels (14) rotatably installed on the top and the bottom of each fixed block (5), the track wheels (14) rollingly supporting the beam bridge track (2), each threaded rod (3) penetrating through the two fixed blocks (5) and threadedly connected with the fixed blocks (5), and two support frames (8) fixedly installed on the inner side of the fixed box (4), a winch (9) rotatably installed between the two support frames (8), and a cable (10) wound around the outer periphery of the winch (9). The protection assembly comprises a fixed disc (13) arranged on the front side of the support frame (8), the shaft center of the winch (9) extending out of the support frame (8) and fixedly connected with the shaft center of the fixed disc (13), a plurality of movable grooves (15) formed in the inner side of the fixed disc (13), one movable column (16) movably installed in the inner side of each movable groove (15), a plurality of support rollers (19) rotatably installed on the inner wall of each movable groove (15), and the plurality of support rollers (19) respectively rollingly supporting the outer side of the movable column (16), a fixed seat (12) fixedly installed on the front side of the support frame (8), and the fixed seat (12) located above the fixed disc (13).

2. A stable double-girder bridge crane according to claim 1, characterized in that: One end of one threaded rod (3) extends to the inner side of one fixed frame (1) and is fixedly connected with the output end of a first motor (6), and the first motor (6) is fixedly installed on the inner side of the fixed frame (1) through a mounting piece.

3. A stable double-girder bridge crane according to claim 1, characterized in that: The two threaded rods (3) are drivingly connected through a belt (7), and the belt (7) is located on the inner side of one fixed frame (1).

4. A stable double-girder bridge crane according to claim 1, characterized in that: The shaft center of the winch (9) extends out of the rear side of the support frame (8) and is fixedly connected with the output end of a second motor (11), and the second motor (11) is fixedly installed on the rear side of the support frame (8) through a mounting piece.

5. A stable double-girder bridge crane according to claim 1, characterized in that: The inner side of one end of each movable column (16) is fixedly installed with a fixed plate (17), each fixed plate (17) is located on the inner side of one movable groove (15) and is slidingly connected with the movable groove (15), and the inner wall of each movable groove (15) is fixedly installed with a limiting frame (18), and the limiting frame (18) corresponds to the fixed plate (17).

6. A stable double-girder bridge crane according to claim 1, characterized in that: One end of the cable (10) is fixedly connected with the winch (9), and the other end of the cable (10) extends out of the bottom of the fixed box (4).

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