CN214456163U

CN214456163U - Switch hoisting device

Info

Publication number: CN214456163U
Application number: CN202022980338.1U
Authority: CN
Inventors: 蔡乾广; 杨海滨; 邵新新; 翟志鹏; 林传波
Original assignee: Nanjing Metrol Operation Co ltd
Current assignee: Nanjing Metrol Operation Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-10-22
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a switch hoisting device belongs to the track traffic field. Comprises a frame, a hanging ring, a sling and a lifting hook. The frame comprises a rectangular body frame of a flattened long frame type and limiting holes arranged at four corners of the body frame; the lifting ring is positioned at the upper part of the center of the rectangular frame; the lifting device is used for being connected with the output end of the lifting device; four suspension cables are arranged, one end of each suspension cable is connected with the suspension ring, and the other end of each suspension cable is connected with the limiting hole; the four groups of lifting hooks are respectively positioned below the limiting holes and are connected with the frame through lifting chains; used for clamping the turnout beam to be hoisted. The utility model discloses a lifting hook can catch on middle twice crossbeam simultaneously, has found switch central point on mechanics, tightens up at the hoist cable, spacing hole under the mating action, realizes switch handling process dynamic weight balance, accomplishes the handling process. The whole hoisting process does not need a specially-assigned person to operate, so that the potential safety hazard is greatly reduced.

Description

Switch hoisting device

Technical Field

The utility model belongs to the rail transit field, especially a switch hoisting device.

Background

The rail can not be separated from a healthy steel rail for long-term safe and efficient operation, wherein the turnout is an important tool for changing the track of the train, is equivalent to a visible overpass in life, and is an important component of the rail. In order to ensure the smooth running of the line, the steel rails which do not reach the use standard need to be replaced in daily maintenance. The operation of the hanger rail is an important link in the replacement of the steel rail.

The turnout is an X-shaped integral steel rail, when an existing lifting tool is used for lifting, a balance point cannot be accurately found, the existing lifting tool is shown in figure 1, the figure 1 shows that the existing lifting tool for the turnout is used for the turnout, a lifting hook is used for grabbing the middle of the turnout, then a steel cable is slowly contracted to be away from the ground, and the turnout is lifted from the ground to a flat car in three processes, namely, the turnout is vertically lifted to a certain height, horizontally transversely moved to the upper portion of the flat car and slowly placed on the flat car. In the process, a plurality of people are required to assist beside the turnout, and the turnout does not shake after being stabilized. Therefore, the applicant finds that the existing lifting appliance for the turnout has two defects, namely when the turnout leaves the ground, the lifting hook is easy to move transversely because of being not at the middle point, so that a person beside the turnout is injured by mistake; secondly, because switch self volume and weight are all big, at this motion in-process, lean on a couple bearing completely, the risk that the switch handling drops midway is great.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model provides a switch overhead hoist to solve the problem that involves among the background art.

The technical scheme is as follows: a switch lifting device comprising: the lifting device comprises a frame, a lifting ring, a sling and a lifting hook.

The frame comprises a rectangular body frame of a flattened long frame type and limiting holes arranged at four corners of the body frame;

the lifting ring is positioned at the upper part of the center of the rectangular frame; the lifting device is used for being connected with the output end of the lifting device;

four suspension cables, wherein one end of each suspension cable is connected with the suspension ring, and the other end of each suspension cable is connected with the limiting hole;

the four groups of lifting hooks are respectively positioned below the limiting holes and are connected with the frame through lifting chains; used for clamping the turnout beam to be hoisted.

In other words, based on switch overhead hoist, when the user state, rings are connected with hoisting accessory's output, will switch overhead hoist falls to switch centre of the fork twice crossbeam top, when lifting by crane, can catch on twice crossbeam in the middle of simultaneously through the lifting hook, has found switch central point in mechanics, tightens up at the hoist cable, spacing hole under the mating action, realizes switch handling process dynamic weight balance, accomplishes the handling process, unloads the hoist with the centre of the fork hoist to the destination after at last.

In a further embodiment, the hook comprises:

the straight tooth clamping component comprises an upper part and a lower part, wherein the cross section of the upper part and the lower part is similar to a U shape, and the length of the upper part is less than that of the lower part;

and the upper part of the movable clamping component is provided with a hook hole and is connected with the lifting chain, the middle part of the movable clamping component is movably arranged on the upper part of the straight tooth clamping component through a rotating shaft, and the lower part of the movable clamping component is abutted against the lower part of the straight tooth clamping component.

In a further embodiment, the upper surface of the lower part of the straight tooth clamping part is provided with a layer of sawtooth-shaped anti-slip grooves.

Based on the hook structure, the lifting hook automatically hangs down due to the gravity of the lifting hook in the lifting process, so that the cross beam is gripped under the condition that the sling is tightened.

In a further embodiment, the sling can freely stretch and retract according to obtuse-angle turnout points, rhombic turnout points and acute-angle turnout points with different forms and specifications.

In a further embodiment, the sling and the lifting chain are the same flexible piece, and a fixed point is arranged at the limiting hole.

In a further embodiment, the sling, the lifting ring and the lifting hook are detachably connected.

Has the advantages that: the utility model relates to a switch handling device can catch on middle twice crossbeam simultaneously through the lifting hook, has found the switch central point on mechanics, tightens up at the hoist cable, spacing hole under the mating reaction, realizes switch handling process dynamic weight balance, accomplishes the handling process, unloads the hoist with switch heart hoist transport to the destination after at last. The whole hoisting process does not need to be attended by too many personnel, and the whole operation can be completed by one operator for operating the crane and one matching personnel for installing the lifting hook; moreover, after the frog leaves the ground, no special person is needed to operate, and all the personnel are far away from the site, so that the potential safety hazard is greatly reduced; in addition, four lifting hooks of the lifting device are stressed independently, if one small lifting hook in one group falls off, the other lifting hook can still continue to operate, and a layer of guarantee is provided for the whole lifting fork process.

Drawings

Fig. 1 is a schematic structural diagram of a conventional hoisting tool.

Fig. 2 is a first schematic structural diagram of the present invention.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a partial enlarged view of the hook of the present invention.

The reference signs are: the lifting device comprises a frame 1, a lifting ring 2, a lifting rope 3, a lifting hook 4, a limiting hole 11, a lifting chain 41, a straight tooth clamping part 42, a movable clamping part 43, an upper part 42a, a lower part 42b, an anti-skidding groove 42c and a lifting hook hole 43 a.

Detailed Description

As shown in fig. 2 to 4, a turnout crane apparatus includes: the lifting device comprises a frame 1, a lifting ring 2, a lifting rope 3, a lifting hook 4, a limiting hole 11, a lifting chain 41, a straight tooth clamping part 42, a movable clamping part 43, an upper part 42a, a lower part 42b, an anti-skidding groove 42c and a lifting hook hole 43 a.

The main structure of the frame 1 is a flat long frame type bracket, and limiting holes 11 are formed in four corners of the body frame; the lifting ring 2 is positioned at the upper part 42a of the center of the rectangular frame 1 and is used for being connected with the output end of the lifting equipment; four slings 3 are provided, one end of each sling is connected with the lifting ring 2, and the other end of each sling is connected with the limiting hole 11; the four groups of lifting hooks 4 are respectively positioned below the limiting holes 11 and are connected with the frame 1 through lifting chains 41; used for clamping the turnout beam to be hoisted. During hoisting, the middle two cross beams can be hooked simultaneously, the center point of the turnout on mechanics is found, and the dynamic weight balance of the turnout in the hoisting process is realized; when the turnout hoisting device is in use, the hoisting rings 2 are connected with the output end of the hoisting device, the turnout hoisting device is lowered to the position above the middle two beams of the turnout center, when hoisting, the middle two beams can be hooked through the lifting hooks 4 at the same time, the center point of the turnout on mechanics is found, the dynamic weight balance of the turnout hoisting process is realized under the matching action of the hoisting ropes 3 and the limiting holes 11, the hoisting process is completed, and finally the turnout center is hoisted to a destination and then the hoisting device is unloaded.

In a further embodiment, the hook 4 comprises: a straight tooth clamping component 42 and a movable clamping component 43. The straight-tooth clamping component 42 comprises an upper part 42a and a lower part 42b, the cross section of the upper part 42a and the cross section of the lower part 42b are approximately U-shaped, and the length of the upper part 42a is smaller than that of the lower part 42 b; and a layer of sawtooth-shaped anti-slip grooves 42c is arranged on the upper surface of the lower part 42b of the straight tooth clamping component 42. The upper part 42a of the movable clamping component 43 is provided with a hook hole 43a and is connected with the lifting chain 41, the middle part of the movable clamping component is movably arranged on the upper part 42a of the straight tooth clamping component 42 through a rotating shaft, and the lower part 42b of the movable clamping component is abutted against the lower part 42b of the straight tooth clamping component 42. Based on the hook structure, the lifting hook 4 is self-hung due to the gravity of the lifting hook 4 in the lifting process, so that the cross beam is gripped under the condition that the sling 3 is tightened.

In a further embodiment, the sling 3 can freely extend and retract according to obtuse-angle turnout points, rhombic turnout points and acute-angle turnout points with different forms and specifications. The flexible suspension cable 3 can freely stretch out and draw back according to the turnout structure, meets the lifting of various turnouts and is integrally designed with a turnout beam.

In a further embodiment, the suspension cable 3 and the lifting chain 41 are the same flexible member and a fixed point is provided at the position of the limiting hole 11. The number of connecting points is reduced, and the mechanical property of the lifting device is improved.

In a further embodiment, the sling 3 is detachably connected with the hanging ring 2 and the lifting hook 4. The lifting is carried out by adopting a mode of combining the sling 3 and the lifting hook 4, the lifting hooks 4 of different types can be automatically changed according to the construction and the weight of the turnout,

in order to facilitate understanding of the technical scheme of the turnout hoisting device, the working principle of the turnout hoisting device is briefly explained: when the lifting device is in a use state, the lifting ring 2 is connected with the output end of the lifting device, 4 groups of lifting hooks 4 are checked whether to be in a closed state in a natural state or not, and lifting is started; slowly will switch overhead hoist falls to switch centre of the switch twice crossbeam top, when lifting by crane, can catch on twice crossbeam in the middle through lifting hook 4 simultaneously, found switch central point on mechanics, thereby utilize the gravity of lifting hook 4 to hang from hanging down and tightly grasp the crossbeam under the hoist cable 3 tightens up the condition, realize switch handling process dynamic weight balance, slowly promote the switch centre and break away from ground, and whether balanced at inferior inspection frame 1, then whether 4 rings 2 and switch accomplish promptly, unload the hoist after carrying the switch centre to the destination at last, and the inspection is novel switch handling instrument each connects the position and has not hard up.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

Claims

1. A switch lifting device, comprising:

2. The turnout hoisting device according to claim 1, wherein in a use state, the lifting ring is connected with the output end of the hoisting device, the turnout hoisting device is lowered to the position above the middle two beams of the turnout center, when hoisting, the middle two beams can be hooked by the lifting hook simultaneously, the mechanically central point of the turnout is found, the dynamic weight balance in the turnout hoisting process is realized under the matching action of the tightening and limiting holes of the sling, the hoisting process is completed, and finally the turnout center is hoisted to a destination and then the sling is unloaded.

3. The switch trolley as claimed in claim 1, wherein the hook comprises:

4. The turnout crane apparatus according to claim 3, wherein the upper surface of the lower part of the straight tooth clamping component is provided with a layer of sawtooth-shaped anti-skid grooves.

5. The switch trolley as claimed in claim 3 or 4, wherein the hook is self-hanging during lifting due to its weight, thereby gripping the cross beam in the event of a tight sling.

6. The turnout crane apparatus according to claim 1, wherein the sling can freely extend and retract according to turnouts of different forms and specifications, such as obtuse turnouts, rhombic turnouts and acute turnouts.

7. The turnout crane assembly of claim 1 wherein the sling and lifting chain are a single flexible member and a fixed point is provided at the position limiting hole.

8. The turnout crane apparatus of claim 1, wherein the sling, the lifting ring and the lifting hook are detachably connected.