CN209906257U

CN209906257U - Bridge crane with double-brake structure

Info

Publication number: CN209906257U
Application number: CN201920832989.0U
Authority: CN
Inventors: 韩际峰
Original assignee: Henan Expedition Lifting Machinery Co Ltd
Current assignee: Henan Expedition Lifting Machinery Co Ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-01-07
Anticipated expiration: 2029-06-04

Abstract

The utility model belongs to the technical field of the hoist, specifically be a bridge crane with two braking structures, which comprises a bracket, be equipped with the reel in the support, fixedly connected with second servo motor on the lateral wall of support, the terminal fixedly connected with bull stick of output shaft of second servo motor, the one end that second servo motor was kept away from to the bull stick runs through support and reel in proper order and rotates with the support inside wall to be connected, the bull stick is connected for rotating with the support, the equal fixedly connected with connecting block in both sides of reel, the fixed cover of connecting block is equipped with on the bull stick, one side fixedly connected with brake disc of reel is kept away from to the connecting block, the fixed cover of brake disc is equipped with on the bull stick, the equal fixedly connected with mounting bracket in both sides of support, the first servo motor of fixedly connected with on the mounting. The utility model discloses a two arrestment mechanisms's setting effectively prevents the emergence of swift current hook phenomenon, improves the security performance, prevents that the goods and the equipment of being hoisted from damaging.

Description

Bridge crane with double-brake structure

Technical Field

The utility model relates to a hoist technical field, concretely relates to bridge crane with two braking structures.

Background

The bridge crane is a hoisting device which is transversely erected above workshops, warehouses and material yards for hoisting materials, because the two ends of the bridge crane are located on high cement columns or metal supports and are shaped like a bridge, the bridge frame of the bridge crane longitudinally runs along rails laid on the elevated frames on the two sides, the space below the bridge frame can be fully utilized for hoisting the materials, the bridge crane is not hindered by ground equipment, and the bridge crane is a hoisting machine with the widest application range and the largest quantity.

The existing crane generally only has a single braking structure, so that due to the single braking structure, when the crane hoists heavier goods or equipment, the crane is easy to slip a hook, so that safety accidents occur, and the goods or the equipment are damaged.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the bridge crane with the double-brake structure is provided, the occurrence of the hook slipping phenomenon is effectively prevented through the arrangement of the double-brake mechanism, the safety performance is improved, and the hoisted goods and equipment are prevented from being damaged.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a bridge crane with double-brake structure, which comprises a bracket, wherein a winding drum is arranged in the bracket, a second servo motor is fixedly connected on the outer side wall of the bracket, the output shaft end of the second servo motor is fixedly connected with a rotating rod, one end of the rotating rod, which is far away from the second servo motor, sequentially penetrates through the bracket and the winding drum and is rotationally connected with the inner side wall of the bracket, the rotating rod is rotationally connected with the bracket, connecting blocks are fixedly connected with both sides of the winding drum, the connecting blocks are fixedly sleeved on the rotating rod, one side of the connecting blocks, which is far away from the winding drum, is fixedly connected with a brake disc, the brake disc is fixedly sleeved on the rotating rod, mounting frames are fixedly connected with both sides of the bracket, a first servo motor is fixedly connected on the inner side wall of the mounting frames, a, the brake disc comprises a support and is characterized in that mounting blocks are arranged on opposite side walls in the support, sliding grooves are formed in the mounting blocks, two moving blocks are arranged in the sliding grooves, hollow grooves communicated with the sliding grooves are formed in the outer side wall of the support, one end, far away from a first servo motor, of a screw penetrates through the hollow grooves and the two moving blocks in sequence and is connected with the inner side wall of the sliding grooves in a rotating mode, internal threads opposite to the screw are arranged in the two moving blocks respectively, sliding openings communicated with the sliding grooves are formed in the lower ends of the mounting blocks, the lower ends of the two moving blocks penetrate through the sliding openings and are fixedly connected with fixing blocks, the two fixing blocks are located on two sides of a brake disc respectively.

Furthermore, the brake pad is made of ceramic.

Furthermore, a sliding rod is arranged between the two moving blocks, two ends of the sliding rod respectively penetrate through the moving blocks and are fixedly connected with the opposite side walls in the sliding block, and the sliding rod is in sliding connection with the moving blocks.

Furthermore, a groove is formed in the upper end of the moving block, a ball is arranged in the groove, and the ball abuts against the side wall of the inner top end of the sliding groove.

Furthermore, a bearing is fixedly sleeved on the screw rod and fixed in the hollow groove.

Furthermore, the screw rod is fixedly sleeved with a fixing ring, and the fixing ring is rotatably connected with the outer side wall of the support.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) the second servo motor is started to rotate to drive the rotating rod, the rotating rod drives the winding drum to rotate, goods are hoisted through the lifting rope in the winding drum, when braking is needed, the two first servo motors are started to rotate to drive the screw rods, the screw rods are arranged through opposite thread meshing, the two moving blocks are made to move in opposite directions, and the moving blocks drive the brake pads to brake the brake disc through the fixed blocks, so that the winding drum stops rotating. The utility model effectively prevents the occurrence of the hook slipping phenomenon through the arrangement of the double braking mechanisms, improves the safety performance, and prevents the hoisted goods and the equipment from being damaged;

2) simultaneously, the material of brake block is pottery, can improve the life of brake block, through the setting of slide bar, can improve the stability when the movable block removes, through the setting of ball, can reduce the frictional force between movable block and the spout inside wall, reduces the moving resistance, through the setting of bearing, stability when can strengthen the screw rod and rotate, through solid fixed ring's setting, stability when can further improve the screw rod and rotate.

Drawings

Fig. 1 is a schematic structural diagram of a bridge crane with a dual-braking structure according to the present invention.

Fig. 2 is a schematic structural diagram of a position a of the bridge crane with a dual-braking structure according to the present invention.

The brake comprises a support 1, a connecting block 2, a winding drum 3, a brake disc 4, a first servo motor 5, a bearing 6, a screw rod 7, a mounting block 8, a moving block 9, a fixing ring 10, a mounting frame 11, a rotating rod 12, a second servo motor 13, a brake pad 14, a ball 15, a sliding rod 16 and a fixing block 17.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, a bridge crane with a dual-brake structure comprises a support 1, a winding drum 3 is disposed in the support 1, a second servo motor 13 is fixedly connected to an outer side wall of the support 1 for driving a rotating rod 12, a rotating rod 12 is fixedly connected to an end of an output shaft of the second servo motor 13 for driving the winding drum 3, one end of the rotating rod 12, far away from the second servo motor 13, sequentially penetrates through the support 1 and the winding drum 3 and is rotatably connected to an inner side wall of the support 1, the rotating rod 1 is rotatably connected to the support 1, connecting blocks 2 are fixedly connected to both sides of the winding drum 3 for connecting brake discs 4, the connecting blocks 2 are fixedly sleeved on the rotating rod 12, a brake disc 4 is fixedly connected to one side of the connecting blocks 2, far away from the winding drum 3, for driving the winding drum 3 to stop, the brake disc 4 is fixedly sleeved on the rotating, the servo mechanism is used for installing a first servo motor 5, the inner side wall of a mounting frame 11 is fixedly connected with the first servo motor 5 and used for driving a screw 7, the tail end of an output shaft of the first servo motor 5 is fixedly connected with the screw 7 and used for driving moving blocks 9, the opposite side walls in a support 1 are respectively provided with an installation block 8 and used for installing the moving blocks 9, a sliding groove is arranged in the installation block 8, two moving blocks 9 are arranged in the sliding groove and used for driving a fixed block 17, the outer side wall of the support 1 is provided with a hollow groove communicated with the sliding groove, one end of the screw 7, far away from the first servo motor 5, sequentially penetrates through the hollow grooves and the two moving blocks 9 and is rotatably connected with the inner side wall of the sliding groove, internal threads opposite to the screw 7 are respectively arranged in the two moving blocks 9, the lower end of the installation block 8 is provided with a sliding, the two fixing blocks 17 are respectively located at two sides of the brake disc 4, and the opposite side walls of the two fixing blocks 17 are fixedly connected with the brake pads 14 for rubbing with the brake disc 4 to stop the brake disc 4 from rotating.

The brake pad 14 is made of ceramic, the service life of the brake pad 14 is prolonged, a sliding rod 16 is arranged between two moving blocks 9, two ends of the sliding rod 16 penetrate through the moving blocks 9 respectively and are fixedly connected with opposite side walls in a sliding opening, the sliding rod 16 is connected with the moving blocks 9 in a sliding mode and is used for improving the stability of the moving blocks 9 when the moving blocks 9 move, a groove is formed in the upper end of each moving block 9, balls 15 are arranged in the groove and abut against the side walls of the top end in the sliding groove, the friction force between the moving blocks 9 and the inner side walls of the sliding groove is reduced, the moving resistance is reduced, a bearing 6 is fixedly sleeved on each screw 7, the bearing 6 is fixed in a hollow groove and is used for enhancing the stability of the screw 7 when the screw 7 rotates, a fixing ring 10 is fixedly sleeved on the screw 7, and the.

The utility model provides a bridge crane with two braking structures, during the use, start second servo motor 13 and rotate and drive bull stick 12, bull stick 12 drives reel 3 and rotates, hoist the goods through the lifting rope in the reel 3, when needing the braking, start two first servo motor 5 and rotate and drive screw rod 7, screw rod 7 is through opposite thread engagement's setting, make two movable blocks 9 toward relative direction removal, movable block 9 movable blocks pass through fixed block 17 and drive brake block 14 and brake disc 4, thereby make reel 3 stall. The utility model discloses a two arrestment mechanisms's setting effectively prevents the emergence of swift current hook phenomenon, improves the security performance, prevents that the goods and the equipment of being hoisted from damaging.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. Bridge crane with double braking structure, comprising a support (1), characterized in that: the winding drum is characterized in that a winding drum (3) is arranged in the support (1), a second servo motor (13) is fixedly connected to the outer side wall of the support (1), a rotating rod (12) is fixedly connected to the tail end of an output shaft of the second servo motor (13), one end, far away from the second servo motor (13), of the rotating rod (12) sequentially penetrates through the support (1) and the winding drum (3) and is rotatably connected with the inner side wall of the support (1), the rotating rod (12) is rotatably connected with the support (1), connecting blocks (2) are fixedly connected to the two sides of the winding drum (3), the connecting blocks (2) are fixedly sleeved on the rotating rod (12), a brake disc (4) is fixedly connected to one side, far away from the winding drum (3), of the brake disc (4) is fixedly sleeved on the rotating rod (12), and mounting frames (11) are fixedly connected to the two sides of the support (, a first servo motor (5) is fixedly connected to the inner side wall of the mounting frame (11), a screw rod (7) is fixedly connected to the tail end of an output shaft of the first servo motor (5), mounting blocks (8) are arranged on the opposite side walls in the support (1), a sliding groove is formed in each mounting block (8), two moving blocks (9) are arranged in each sliding groove, a hollow groove communicated with each sliding groove is formed in the outer side wall of the support (1), one end, far away from the first servo motor (5), of each screw rod (7) penetrates through the hollow groove and the two moving blocks (9) in sequence and is rotatably connected with the inner side wall of each sliding groove, internal threads opposite to the screw rods (7) are arranged in the two moving blocks (9) respectively, a sliding opening communicated with each sliding groove is formed in the lower end of each mounting block (8), and the lower ends of the two moving blocks (9) penetrate through the, two fixed block (17) are located the both sides of brake disc (4) respectively, two equal fixedly connected with brake block (14) on the relative lateral wall of fixed block (17).

2. A bridge crane with a dual braking arrangement as claimed in claim 1, wherein: the brake pad (14) is made of ceramic.

3. A bridge crane with a dual braking arrangement as claimed in claim 1, wherein: a sliding rod (16) is arranged between the two moving blocks (9), two ends of the sliding rod (16) respectively penetrate through the moving blocks (9) and are fixedly connected with the opposite side walls in the sliding port, and the sliding rod (16) is in sliding connection with the moving blocks (9).

4. A bridge crane with a dual braking arrangement as claimed in claim 1, wherein: the upper end of the moving block (9) is provided with a groove, a ball (15) is arranged in the groove, and the ball (15) is abutted to the side wall of the inner top end of the sliding groove.

5. A bridge crane with a dual braking arrangement as claimed in claim 1, wherein: the screw rod (7) is fixedly sleeved with a bearing (6), and the bearing (6) is fixed in the hollow groove.

6. A bridge crane with a dual braking arrangement as claimed in claim 1, wherein: the screw rod (7) is fixedly sleeved with a fixing ring (10), and the fixing ring (10) is rotatably connected with the outer side wall of the support (1).