CN117819399A

CN117819399A - Bridge crane

Info

Publication number: CN117819399A
Application number: CN202410247246.2A
Authority: CN
Inventors: 黄诚; 秦书伟; 贺亚洲; 杨二超
Original assignee: Henan Tunnel Machinery Co ltd
Current assignee: Henan Tunnel Machinery Co ltd
Priority date: 2024-03-05
Filing date: 2024-03-05
Publication date: 2024-04-05
Anticipated expiration: 2044-03-05
Also published as: CN117819399B

Abstract

The invention relates to a bridge crane, which comprises a guide rail; the cross beam is arranged on the guide rail; the cross beam is provided with a movable trolley in a sliding manner; the fixed cylinder is fixed on the movable trolley, and a through hole for the steel wire rope to pass through is arranged in the fixed cylinder; the hoisting member is fixed at the lower end of the steel wire rope and comprises an upper connecting section and a lower connecting section which are in hooking fit; the fixed cylinder comprises a first connecting section, a second connecting section, a third connecting section and a fourth connecting section which are sequentially and fixedly connected from top to bottom; the third center hole and the fourth center hole are respectively matched with the hoisting structure in a guiding way; the second connecting section is provided with an upper fixing structure which can be fixedly connected with the upper connecting section so as to realize the fixed connection between the upper connecting section and the fixed cylinder; the fourth connecting section is provided with a lower fixing structure, and the lower fixing structure can be fixedly connected with the lower connecting section so as to realize the fixed connection between the lower connecting section and the fixing cylinder; the hoisting of the steel wire rope to the article is replaced by the hoisting of the fixed cylinder to the article, so that the article can be prevented from swinging in the hoisting process.

Description

Bridge crane

Technical Field

The invention belongs to the technical field of cranes, and particularly relates to a bridge crane.

Background

The bridge crane is hoisting equipment for hoisting materials in workshops, warehouses and stock yards. The bridge-like shape is obtained by sitting on tall concrete columns or metal supports at both ends. The bridge frame of the bridge crane runs longitudinally along the tracks laid on the overhead frames at the two sides, so that the space below the bridge frame can be fully utilized to hoist materials, and the bridge frame is not hindered by ground equipment. The application range is wide.

At present, the lifting structure of the indoor bridge crane is a steel wire rope, the steel wire rope is used as a flexible member, and in the process of lifting a heavy object, the steel wire rope is often caused to swing in the process of starting, stopping, accelerating or decelerating the crane; when the distance between the lifted weight and the cross beam of the bridge crane is large and the crane is suddenly started and stopped, the swinging of the weight is more severe in the situation. The violent swing of the heavy object is easy to collide with surrounding beams and columns, so that not only is the damage to the hoisted objects easy to cause, but also the danger is brought to workers working nearby the bridge crane.

Disclosure of Invention

Therefore, the invention aims to provide a bridge crane, which solves the technical problems that in the prior art, when the crane is suddenly started and stopped, the swing of a flexible steel wire rope easily causes the collision damage of a hoisting object and hidden danger is brought to the personal safety of staff nearby the bridge crane.

In order to achieve the above purpose, the technical scheme adopted by the bridge crane is as follows:

a bridge crane, comprising:

guide rail: the guide rail is used for being fixed on the supporting wall body, and the guide rail is arranged in an extending way along the front-back direction;

a cross beam: the guide is arranged on the guide rail in a sliding manner;

and (3) moving the trolley: is matched with the beam in a guiding sliding way;

and (3) a winch: the wire rope is wound on the winch;

and (3) fixing a barrel: the fixed cylinder is arranged in an extending way along the up-down direction, and a through hole for a steel wire rope to pass through is arranged in the fixed cylinder;

hoisting components: the hoisting component comprises an upper connecting section and a lower connecting section which are in hooking fit, and a lifting hook is fixed at the lower end of the lower connecting section;

the fixed cylinder comprises a first connecting section, a second connecting section, a third connecting section and a fourth connecting section which are sequentially and fixedly connected from top to bottom, wherein the first connecting section is provided with a first central hole, the second connecting section is provided with a second central hole, the third connecting section is provided with a third central hole, the fourth connecting section is provided with a fourth central hole, and the first central hole, the second central hole, the third central hole and the fourth central hole form a through hole for a steel wire rope to pass through;

the third central hole is in guide fit with the hoisting structure, and the fourth central hole is in guide fit with the hoisting structure;

the second connecting section is provided with an upper fixing structure which can be fixedly connected with the upper connecting section so as to realize the fixed connection between the upper connecting section and the fixed cylinder;

the fourth connecting section is provided with fixed knot constructs down, and fixed knot constructs down and can be with lower connecting section fixed connection to realize the fixed connection between lower connecting section and the fixed cylinder.

The beneficial effects are that: according to the invention, the fixed cylinder is fixedly arranged below the movable trolley, so that a steel wire rope on the winch passes through the fixed cylinder, the end part of the steel wire rope is provided with the hoisting member, the hoisting member comprises an upper connecting section and a lower connecting section, the lower end of the lower connecting section is fixedly provided with the lifting hook, and the hoisting structure for opening and hoisting an article comprises a flexible steel wire rope and also comprises a rigid upper connecting section and a rigid lower connecting section; when the lifting hook is required to move downwards to hook the article, the hoist unwinds the steel wire rope to enable the lifting hook to move downwards, so that the position of the lifting hook can be adjusted to hook the article through the flexible material of the steel wire rope, and hook matching between the lifting hook and the article is convenient to realize; when the hook is hooked with the article, the winch winds, the hook drives the article to move upwards, the hoisting member enters the fixed cylinder, and the degree of freedom of the hoisting member is limited through the fixed cylinder, so that the article is prevented from swinging in the hoisting process. Not only, be provided with fixed knot on the second linkage segment and construct, when last linkage segment reached the second linkage segment, can go up fixed knot structure and last linkage segment fixed connection, realize the fixed connection between upper linkage segment and the fixed section, simultaneously, the fourth linkage segment is provided with fixed knot structure down, lower fixed knot constructs can with lower linkage segment fixed connection, thereby realize fixed connection between lower linkage segment and the fixed section, like this, can be through going up fixed knot structure and lower fixed knot construct and hoisting member's connection, realize the fixed section and hoisting member's is fixed, thereby replace the hoist and mount of wire rope to article for the hoist and mount of fixed section to article, not only can avoid article to take place the swing at hoist and mount in-process, can also reduce wire rope's hoist and mount time, avoid wire rope to break the potential safety hazard that brings suddenly.

Further, the upper connecting section comprises a guide head section, a guide neck section and a guide tail section, wherein the guide head section, the guide neck section and the guide tail section are coaxially arranged, the guide neck section is fixed below the guide head section, the diameter of the guide neck section is smaller than that of the guide head section, and the diameter of the guide neck section is smaller than that of the guide tail section, so that the upper connecting section forms a structure with a thin middle part and thick upper and lower ends; offer on the second linkage segment and hold the chamber, hold chamber and second centre bore intercommunication setting, the second centre bore is fixed with the spacing cap of direction first section adaptation, fix at the direction section of spacing cap lower extreme, fix the flaring section at the direction section lower extreme, the direction section is including preceding arc section and the back arc section that the front and back symmetry set up, preceding arc section and back arc section interval setting around, go up fixed knot construct bilateral symmetry and be provided with two, fixed knot constructs in the fore-and-aft direction and set up between arc section and back arc section, two go up fixed knot constructs and hug tightly in order to realize the fixed connection of last linkage segment and fixed section of a section of thick bamboo to the direction neck section of last linkage segment.

The beneficial effects are that: after the upper connecting section is structurally arranged and can be tightly held by the upper fixing structure, the upper connecting section is limited in the upper-lower direction through the upper fixing structure, so that the connection stability between the upper fixing structure and the upper connecting section is ensured.

Further, the limiting cap comprises a cylinder section and a top plate fixed on the upper portion of the cylinder section, a through hole for a steel wire rope to pass through is formed in the top plate, and the top plate and the guide head section are in limiting fit in the up-down direction so as to limit the hoisting component.

The beneficial effects are that: the structure of the limiting cap can conveniently limit the movement of the guide head section in the up-down direction.

Further, go up fixed knot structure including can be in the flexible section of left and right directions flexible and fix the staple bolt at flexible section tip, the staple bolt be with the arc of direction neck section outer peripheral face adaptation, after direction head section and spacing cap adaptation, the staple bolt holds tightly the direction neck section so that the staple bolt carries out spacingly to last linkage segment from top to bottom.

The beneficial effects are that: the setting of going up fixed knot constructs can be through stretching out of flexible section, makes the staple bolt hold tightly the direction neck section in the left and right directions, realizes fixed connection of going up fixed knot construct and direction neck section.

Further, be fixed with the mounting panel that the level set up on the second linkage segment, be fixed with the otic placode on the mounting panel, go up fixed knot structure's flexible section and connect on the otic placode, be provided with the guide bar in holding the chamber, flexible section sets up between two guide bars.

The beneficial effects are that: the setting of flexible section is convenient, and the direction of flexible section flexible is more accurate through the guide effect of guide bar.

The guide tail section of the upper connecting section is fixedly provided with an upper hanging ring, the top end of the lower connecting section is fixedly provided with a lower hanging ring, the upper hanging ring is in hooking fit with the lower hanging ring, and the lower connecting section is a cylindrical section.

The beneficial effects are that: the upper connecting section and the lower connecting section are connected through the hook cooperation of the upper hanging ring and the lower hanging ring, so that the freedom degree of the hoisting member is increased, when the hoisting member is used for hoisting an article, the hook cooperation of the hoisting member and the article is facilitated, meanwhile, the hoisting member further comprises the upper connecting section and the lower connecting section, after the hoisting member enters the fixed cylinder, the upper connecting section and the lower connecting section of the hoisting member are respectively matched with the guide of the fixed cylinder, the fixed cylinder limits the movable freedom degree of the upper connecting section and the lower connecting section, and therefore the swing of the article in the hoisting process is reduced.

Further, set up left installation cavity and right installation cavity with fourth centre bore intercommunication on the fourth linkage segment, left installation cavity and right installation cavity bilateral symmetry set up, left installation cavity include with the first cavity of fourth centre bore intercommunication and with the second cavity of first cavity intercommunication, fixed knot constructs including actuating structure, transmission structure, execution structure down, actuating structure carries out the structure action through the transmission structure drive, execution structure holds tightly the cylinder section in order to realize the fixed connection between lower linkage segment and the fixed cylinder.

The beneficial effects are that: the cylindrical section of the lower connecting section can be held tightly through the driving structure and the actuating structure, so that the fixed connection between the lower connecting section and the fixed cylinder is realized, and the connection strength between the hoisting member and the fixed cylinder is ensured.

The diameter of the fourth connecting section is larger than that of the third connecting section so as to form a ring table at the joint of the third connecting section and the fourth connecting section, and the driving structure is a hydraulic cylinder fixed on the ring table; the end part of the telescopic shaft of the hydraulic cylinder is fixedly provided with a disc which is in guiding fit with the peripheral surface of the third connecting section, and the hydraulic cylinder stretches and contracts in the up-down direction to drive the disc to move up and down along the third connecting section; the transmission structure comprises a first connecting rod fixedly connected with the disc and extending along the up-down direction, one end of the first connecting rod is fixedly connected with the disc, the other end of the first connecting rod stretches into the second cavity, the lower end of the first connecting rod is hinged with a second connection, one end, far away from the first connecting rod, of the second connecting rod is hinged with a third connecting rod, and the third connecting rod is hinged with a fourth connecting rod which is fixed in the second cavity and is horizontally arranged; the second connecting rod is obliquely arranged from top to bottom along the radial direction of the fourth connecting section, and the third connecting rod is obliquely arranged from top to bottom along the radial direction of the fourth connecting section; the executing structure comprises an arc friction plate positioned in the first cavity, a vertical transmission rod positioned in the second cavity and a fixed rod fixedly connected between the arc friction plate and the vertical transmission rod; the vertical transmission rod is respectively connected with the second connecting rod and the third connecting rod in a transmission way.

The beneficial effects are that: the transmission part structure can be driven to move through the up-down expansion of the hydraulic cylinder, so that the actuating structure is driven to move left and right through the transmission structure, the arc friction plate of the actuating structure moves left and right to hold the cylindrical section of the lower connecting section tightly, and the fixed connection between the lower fixing structure and the lower connecting section is realized.

Further, a first guide long hole and a second guide long hole are formed in the vertical transmission rod, the extending directions of the first guide long hole and the second guide long hole are the same as that of the vertical transmission rod, a first pin matched with the first guide long hole in a guiding mode is fixed on the second connecting rod, and a second pin matched with the second guide long hole in a guiding mode is fixed on the third connecting rod.

The beneficial effects are that: the first connecting rod can be driven to move up and down through the hydraulic cylinder, so that the included angle between the second connecting rod and the third connecting rod is changed, the positions of the first pin and the second pin in the left-right direction are changed through the change of the included angle between the second connecting rod and the third connecting rod, the first pin and the second pin push-pull execution structure are enabled to move left and right, and the execution structure is fixed to the lower connecting section in a clasping mode.

Further, a horizontal communication hole is arranged between the first chamber and the second chamber, the fixed rod is in guide sliding fit with the communication hole, and a spring is sleeved on the fixed rod.

The beneficial effects are that: the arrangement of the springs enables the execution structure to have a certain buffering effect when the execution structure moves left and right to hold the lower connecting section tightly.

Drawings

FIG. 1 is a schematic illustration of a bridge crane lifting member and stationary drum of the present invention;

FIG. 2 is a schematic view of another state of a bridge crane lifting member and stationary drum of the present invention;

FIG. 3 is an enlarged view of a portion of one of the bridge cranes of FIG. 2;

FIG. 4 is a schematic view of the structure of the lifting member of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

FIG. 6 is a cross-sectional view of the second connecting section of FIG. 2;

FIG. 7 is a left side view of FIG. 2 with the lifting member and upper securing structure omitted;

fig. 8 is a schematic structural view of the lower fixing structure of fig. 2.

Reference numerals: 1-a cross beam; 2-a mobile trolley; 3-a first connection section; 4-a second connection section; 5-a third connecting section; 6-a fourth connecting section; 7-an upper connecting section; 8-a lower connecting section; 9-upper fixing structure; 10-lower fixing structure; 11-a winch; 12-a steel wire rope; 13-lifting hooks; 14-a guide head section; 15-guiding neck section; 16-guiding tail section; 17-hanging rings; 18-lower hanging ring; 19-a first central bore; 20-limiting caps; 21-a guide section; 22-flaring segment; 23-mounting plates; 24-ear plate; 25-telescoping sections; 26-a guide bar; 27-hoops; 28-perforating; 29-a first chamber; 30-a second chamber; 31-a drive structure; 32-a disc; 33-a first link; 34-a second link; 35-a third link; 36-fourth link; 37-a vertical transmission rod; 38-fixing rod; 39-arc friction plate; 40-guiding long holes; 41-spring.

Detailed Description

The bridge crane according to the invention is described in further detail below with reference to the accompanying drawings and the detailed description:

as shown in fig. 1, the bridge crane comprises guide rails fixed on a supporting wall body, wherein two guide rails are arranged in parallel at intervals left and right, and the guide rails extend along the front and rear directions. The guide rail is provided with a cross beam 1 extending in the left-right direction in a guiding and sliding manner. In the embodiment, two moving trolleys 2 are arranged on the cross beam 1 at left and right intervals, and the moving trolleys 2 are in guiding sliding fit with the cross beam 1.

The movable trolley 2 is provided with a winch 11, the winch 11 is wound with a flexible steel wire rope 12, the movable trolley 2 is also fixedly provided with a fixed cylinder, the fixed cylinder is fixed at the bottom of the movable trolley 2, the fixed cylinder is arranged in a vertically corresponding manner with the winch 11, the fixed cylinder extends in the vertical direction, and a through hole for the steel wire rope 12 to pass through is arranged in the fixed cylinder.

In this embodiment, the fixed cylinder includes from the top down fixed connection's first linkage segment 3, second linkage segment 4, third linkage segment 5, fourth linkage segment 6 in proper order, and first centre bore 19 has been seted up to first linkage segment 3, and the second centre bore has been seted up to second linkage segment 4, and the third centre bore has been seted up to third linkage segment 5, and the fourth centre bore has been seted up to fourth linkage segment 6, and first centre bore 19, second centre bore, third centre bore, fourth centre bore form the via hole that supplies wire rope 12 to pass. In order to facilitate the wire rope 12 to enter the via hole from the hoist 11, in this embodiment, a tapered hole with a large upper end and a small lower end is provided at the top end of the first central hole 19, so that the wire rope 12 on the hoist 11 can enter the via hole of the fixed barrel.

A hoisting member is fixed at the lower end of the steel wire rope 12, the hoisting member comprises an upper connecting section 7 and a lower connecting section 8 which are in hooking fit, an upper hanging ring 17 is fixed at the lower end of the upper connecting section 7, a lower hanging ring 18 is fixed at the top end of the lower connecting section 8, and the upper hanging ring 17 is in hooking fit with the lower hanging ring 18.

In this embodiment, the third central hole of the fixed cylinder is in guiding fit with the hoisting structure, and the fourth central hole is in guiding fit with the hoisting structure. The second connecting section 4 is provided with an upper fixing structure 9, the upper fixing structure 9 can be fixedly connected with the upper connecting section 7 so as to realize the fixed connection between the upper connecting section 7 and the fixed cylinder, the fourth connecting section 6 is provided with a lower fixing structure 10, and the lower fixing structure 10 is fixedly connected with the lower connecting section 8 so as to realize the fixed connection between the lower connecting section 8 and the fixed cylinder.

Specifically, the upper connecting section 7 includes a coaxially arranged guiding head section 14, a guiding neck section 15 fixed below the guiding head section 14, and a guiding tail section 16 fixed below the guiding neck section 15, wherein the diameter of the guiding neck section 15 is smaller than that of the guiding head section 14, and the diameter of the guiding diameter section is smaller than that of the guiding tail section 16, so that the upper connecting section 7 forms a structure with a thin middle and thick upper and lower ends. The second connecting section 4 is provided with an accommodating cavity which is communicated with a second center hole, and the second center hole is fixedly provided with a limiting cap 20 which is matched with the guiding head end, a guiding section 21 which is fixedly arranged at the lower end of the limiting cap 20 and a flaring section 22 which is fixedly arranged at the lower end of the guiding section 21.

Specifically, the limiting cap 20 includes a cylindrical section and a top plate fixed on the upper portion of the cylindrical section, a through hole 28 for the steel wire rope 12 to pass through is formed in the top plate, and the top plate is in limiting fit with the guiding head section 14 in the up-down direction so as to limit the hoisting member. The guide section 21 comprises a front arc section and a rear arc section which are arranged in a front-back symmetrical mode, the front arc section and the rear arc section are arranged in a front-back interval mode, the front arc section and the rear arc section are respectively fixed below the limiting cap 20, and the front arc section and the rear arc section are respectively fixed above the flaring section 22.

The left and right fixing structures 9 are symmetrically arranged between the front arc-shaped section and the rear arc-shaped section, and the left and right fixing structures 9 tightly hold the guide neck section 15 of the upper connecting section 7 to realize the fixed connection between the upper connecting section 7 and the fixed cylinder.

Specifically, the upper fixing structure 9 comprises a telescopic section 25 capable of stretching in the left-right direction and a hoop 27 fixed at the end part of the telescopic section 25, the hoop 27 is an arc plate matched with the outer peripheral surface of the guide neck section 15, the second connecting section 4 is fixedly provided with a horizontally arranged mounting plate 23, the mounting plate 23 is fixedly provided with an ear plate 24, the telescopic section 25 is connected to the ear plate 24, a guide rod 26 is arranged in the accommodating cavity, the guide rods 26 are arranged in pairs in the front-back direction, and the telescopic section 25 is arranged between the two guide rods 26 so as to position the telescopic rods through the guide rods 26. In this embodiment, the telescopic section 25 is a telescopic hydraulic cylinder. After the guide head section 14 is matched with the limiting cap 20, the hoop 27 is tightly held against the guide neck section 15, so that the hoop 27 limits the upper connecting section 7 in the up-down direction.

In the embodiment, the lower connecting section 8 is a cylindrical section, the lower end of the cylindrical section is fixedly provided with a lifting hook 13, and the lifting hook 13 is used for hooking and matching with a material to be lifted; a left mounting cavity and a right mounting cavity which are communicated with the fourth center hole are formed in the fourth connecting section 6, the left mounting cavity and the right mounting cavity are symmetrically arranged left and right, and the left mounting cavity comprises a first cavity 29 communicated with the fourth center hole and a second cavity 30 communicated with the first cavity 29.

The lower fixing structure 10 comprises a driving structure 31, a transmission structure and an executing structure, wherein the driving structure 31 drives the executing structure to act through the transmission structure, so that the executing structure tightly holds the cylindrical section of the lower connecting section 8 to realize the fixed connection between the lower connecting section 8 and the fixed cylinder.

In this embodiment, the diameter of the fourth connecting section 6 is larger than the diameter of the third connecting section 5, so that a ring table is formed at the connection position between the third connecting section 5 and the fourth connecting section 6, and the driving structure 31 is fixed on the ring table, in this embodiment, the driving structure 31 is a hydraulic cylinder. The end part of the telescopic shaft of the hydraulic cylinder is fixed with a disc 32 which is in guiding fit with the outer peripheral surface of the third connecting section 5, and the hydraulic cylinder drives the disc 32 to move up and down in a guiding way along the third connecting section 5 in an up-and-down reverse telescopic way.

The transmission structure comprises a first connecting rod 33 fixedly connected with the disc 32 and extending along the up-down direction, one end of the first connecting rod 33 is fixedly connected with the disc 32, the other end of the first connecting rod 33 stretches into the second chamber 30, the lower end of the first connecting rod 33 is hinged with a second connecting rod 34, one end, far away from the first connecting rod 33, of the second connecting rod 34 is hinged with a third connecting rod 35, and the third connecting rod 35 is hinged with a fourth connecting rod 36 which is fixedly arranged in the second chamber 30 and horizontally. In this embodiment, the second connecting rod 34 is disposed obliquely from top to bottom along the radial direction of the fourth connecting section 6, and the third connecting rod 35 is disposed obliquely from top to bottom along the radial direction of the fourth connecting section 6, so that an included angle is formed between the second connecting rod 34 and the third connecting rod 35. The executing structure comprises an arc friction plate 39 positioned in the first chamber 29, a vertical transmission rod 37 positioned in the second chamber 30, and a fixed rod 38 fixedly connected between the arc friction plate 39 and the vertical transmission rod 37; in this embodiment, a horizontal communication hole is provided between the first chamber 29 and the second chamber 30, and the fixing rod 38 is in guiding sliding fit with the guide hole.

In this embodiment, the vertical transmission rod 37 is in transmission connection with the second link 34 and the third link 35 respectively, and specifically, a first guiding long hole and a second guiding long hole 40 are provided on the vertical transmission rod 37, and the extending directions of the first guiding long hole and the second guiding long hole 40 are the same as the extending directions of the vertical transmission rod 37. The second link 34 is fixed with a first pin that is in guiding engagement with the first long guide hole, and the third link 35 is fixed with a second pin that is in guiding engagement with the second long guide hole 40. The first connecting rod 33 can be driven to move up and down through the hydraulic cylinder, so that the included angle between the second connecting rod 34 and the third connecting rod 35 is changed, the positions of the first pin and the second pin in the left-right direction are changed through the change of the included angle between the second connecting rod 34 and the third connecting rod 35, and the first pin and the second pin push-pull execution structure move left and right, so that the execution structure is tightly held and fixed on the lower connecting section 8.

In order to cushion the movement of the actuating structure in the left-right direction, in this embodiment, the fixing rod 38 is sleeved with a spring 41, the spring 41 is located in the second chamber 30, one end of the spring 41 abuts against the vertical transmission rod 37, and the other end of the spring 41 abuts against the side surface of the second chamber 30 facing away from the first chamber 29.

In order to facilitate the hoisting member to enter the fixed cylinder, in this embodiment, a conical hole with a large lower end opening and a small upper end opening is formed at the lower end of the fourth central hole of the fourth connecting section 6 of the fixed cylinder, and the diameter of the upper end of the conical hole is equal to that of the fourth central hole.

According to the invention, a fixed cylinder is fixedly arranged below a movable trolley 2, so that a steel wire rope 12 on a winch 11 passes through the fixed cylinder, the end part of the steel wire rope 12 is provided with a hoisting member, the hoisting member comprises an upper connecting section 7 and a lower connecting section 8, a lifting hook 13 is fixed at the lower end of the lower connecting section 8, and a hoisting structure for hoisting an article comprises a flexible steel wire rope 12, and further comprises a rigid upper connecting section 7 and a rigid lower connecting section 8; when the hanging hook 13 is required to move downwards to hook an article, the hoist 11 unwinds the steel wire rope 12 to enable the hanging hook 13 to move downwards, so that the position of the hanging hook 13 can be adjusted to hook the article through the flexible material of the steel wire rope 12, and the hooking cooperation between the hanging hook 13 and the article is conveniently realized; when the hook 13 is hooked with the article, the winch 11 is wound, the hook 13 drives the article to move upwards, the hoisting member enters the fixed cylinder, and the degree of freedom of the hoisting member is limited through the fixed cylinder, so that the article is prevented from swinging in the hoisting process. Moreover, be provided with fixed knot structure 9 on the second linkage segment 4, when last linkage segment 7 reached second linkage segment 4, can go up fixed knot structure 9 and go up linkage segment 7 fixed connection, realize the fixed connection between upper linkage segment 7 and the fixed section of thick bamboo, simultaneously, fourth linkage segment 6 is provided with fixed knot structure 10 down, fixed knot structure 10 can with lower linkage segment 8 fixed connection down, thereby realize fixed connection between lower linkage segment 8 and the fixed section of thick bamboo, like this, can be through last fixed knot structure 9 and be connected of fixed knot structure 10 and hoisting member down, realize the fixed section of thick bamboo and hoisting member's fixed, thereby replace the hoist and mount of fixed section of thick bamboo to article with wire rope 12, can avoid article in hoist and mount in-process to take place the swing, can also reduce wire rope 12's hoist and mount time, avoid the potential safety hazard that wire rope 12 suddenly breaks and bring.

In the above embodiment, an upper hanging ring is fixed on the guiding tail section of the upper connecting section, a lower hanging ring is fixed on the top end of the lower connecting section, and the upper hanging ring is hooked and matched with the lower hanging ring; in other embodiments, an upper hook is fixed on the guide tail section of the upper connecting section, a lower hook is fixed on the top end of the lower connecting section, and the upper hook is hooked and matched with the lower hook; or the upper connecting section is hinged with the lower connecting section.

In the above embodiment, the fixing rod is sleeved with the spring, and in other embodiments, the spring may not be provided.

Claims

1. A bridge crane, comprising:

a cross beam: the guide is arranged on the guide rail in a sliding manner;

and (3) moving the trolley: is matched with the beam in a guiding sliding way;

and (3) a winch: the wire rope is wound on the winch;

and (3) fixing a barrel: the fixed cylinder is arranged in an extending way along the up-down direction, and a through hole for the steel wire rope to pass through is arranged in the fixed cylinder;

2. The bridge crane of claim 1, wherein the upper connecting section comprises a coaxially arranged guide head section, a guide neck section fixed below the guide head section, and a guide tail section fixed below the guide neck section, the diameter of the guide neck section is smaller than that of the guide head section, and the diameter of the guide neck section is smaller than that of the guide tail section, so that the upper connecting section forms a structure with a thin middle and thick upper and lower ends; offer on the second linkage segment and hold the chamber, hold chamber and second centre bore intercommunication setting, the second centre bore is fixed with the spacing cap of direction first section adaptation, fix at the direction section of spacing cap lower extreme, fix the flaring section at the direction section lower extreme, the direction section is including preceding arc section and the back arc section that the front and back symmetry set up, preceding arc section and back arc section interval setting around, go up fixed knot construct bilateral symmetry and be provided with two, fixed knot constructs in the fore-and-aft direction and set up between arc section and back arc section, two go up fixed knot constructs and hug tightly in order to realize the fixed connection of last linkage segment and fixed section of a section of thick bamboo to the direction neck section of last linkage segment.

3. The bridge crane of claim 2, wherein the limit cap comprises a cylindrical section and a top plate fixed on the upper part of the cylindrical section, the top plate is provided with a through hole for a steel wire rope to pass through, and the top plate is in limit fit with the guide head section in the up-down direction so as to limit the hoisting member.

4. The bridge crane of claim 3, wherein the upper fixing structure comprises a telescopic section capable of stretching in the left-right direction and a hoop fixed at the end part of the telescopic section, the hoop is an arc-shaped plate matched with the outer circumferential surface of the guide neck section, and when the guide head section is matched with the limit cap, the hoop tightly holds the guide neck section so that the hoop limits the upper connecting section in the up-down direction.

5. The bridge crane of claim 4, wherein the second connecting section is fixedly provided with a horizontally arranged mounting plate, the mounting plate is fixedly provided with an ear plate, the telescopic section of the upper fixing structure is connected to the ear plate, the guide rods are arranged in the accommodating cavity, and the telescopic section is arranged between the two guide rods.

6. The bridge crane according to any one of claims 1-5, wherein an upper hanging ring is fixed on the guiding tail section of the upper connecting section, a lower hanging ring is fixed on the top end of the lower connecting section, the upper hanging ring is hooked and matched with the lower hanging ring, and the lower connecting section is a cylindrical section.

7. The bridge crane of claim 6, wherein the fourth connecting section is provided with a left mounting cavity and a right mounting cavity which are communicated with the fourth central hole, the left mounting cavity and the right mounting cavity are symmetrically arranged left and right, the left mounting cavity comprises a first cavity communicated with the fourth central hole and a second cavity communicated with the first cavity, the lower fixing structure comprises a driving structure, a transmission structure and an executing structure, the driving structure drives the executing structure to act through the transmission structure, and the executing structure holds the cylindrical section tightly so as to realize the fixed connection between the lower connecting section and the fixing cylinder.

8. The bridge crane of claim 7, wherein the fourth connecting section has a diameter greater than the diameter of the third connecting section to form a ring at the junction of the third and fourth connecting sections, and the drive structure is a hydraulic cylinder secured to the ring; the end part of the telescopic shaft of the hydraulic cylinder is fixedly provided with a disc which is in guiding fit with the peripheral surface of the third connecting section, and the hydraulic cylinder stretches and contracts in the up-down direction to drive the disc to move up and down along the third connecting section; the transmission structure comprises a first connecting rod fixedly connected with the disc and extending along the up-down direction, one end of the first connecting rod is fixedly connected with the disc, the other end of the first connecting rod stretches into the second cavity, the lower end of the first connecting rod is hinged with a second connecting rod, one end, far away from the first connecting rod, of the second connecting rod is hinged with a third connecting rod, and the third connecting rod is hinged with a fourth connecting rod which is fixed in the second cavity and is horizontally arranged; the second connecting rod is obliquely arranged from top to bottom along the radial direction of the fourth connecting section, and the third connecting rod is obliquely arranged from top to bottom along the radial direction of the fourth connecting section; the executing structure comprises an arc friction plate positioned in the first cavity, a vertical transmission rod positioned in the second cavity and a fixed rod fixedly connected between the arc friction plate and the vertical transmission rod; the vertical transmission rod is respectively connected with the second connecting rod and the third connecting rod in a transmission way.

9. The bridge crane of claim 8, wherein the vertical transmission rod is provided with a first guide long hole and a second guide long hole, the extending directions of the first guide long hole and the second guide long hole are the same as the extending direction of the vertical transmission rod, the second connecting rod is fixed with a first pin in guide fit with the first guide long hole, and the third connecting rod is fixed with a second pin in guide fit with the second guide long hole.

10. The bridge crane of claim 9, wherein a horizontally arranged communication hole is arranged between the first chamber and the second chamber, the fixed rod is in guiding sliding fit with the communication hole, and a spring is sleeved on the fixed rod.