CN212101621U

CN212101621U - Lifting appliance for underground excavation trolley

Info

Publication number: CN212101621U
Application number: CN202020701340.8U
Authority: CN
Inventors: 贾体锋; 杜祥虎; 赵兴寅; 梁凤远
Original assignee: Xuzhou XCMG Railway Equipment Co Ltd
Current assignee: Xuzhou XCMG Railway Equipment Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-08
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a hoist for secretly dig platform truck, including hanger plate, preceding connecting piece, back connecting piece, first connecting rod, second connecting rod, when this hoist device needs during operation, wherein two second connecting rods are along the width direction parallel arrangement who secretly digs the platform truck, and the both ends of second connecting rod are located to two first connecting rods cover respectively, and the quadrangle that constitutes is located the top of secretly digging the platform truck, in the both sides of secretly digging the platform truck, all is provided with a preceding connecting piece and a back connecting piece, on the second connecting rod was located to preceding connecting piece upper end cover, the lower extreme and the front end fixed connection of track beam, back connecting piece upper end cover were located on the second connecting rod, the lower extreme and the rear end fixed connection of track beam. The four hanging plates are respectively sleeved at the end part of the second connecting rod and then are fastened by nuts and gaskets. And a steel wire rope is arranged on the hanging plate in a penetrating way and is used for being connected with the hoisting device. The utility model discloses can improve the efficiency that the tunnel working face was transported to the undercut platform truck, the security is good.

Description

Lifting appliance for underground excavation trolley

Technical Field

The utility model relates to an undercut platform truck technical field, concretely relates to hoist for undercut equipment.

Background

At present, two types of shield and underground excavation are mainly adopted in the subway construction process. The shield is a subway construction method with high mechanization degree, but the shield can only excavate a standard section due to poor flexibility, a channel with large curvature cannot be completed, and the shield occupies a large space, so that the application of the shield is limited to a certain extent. Underground excavation construction technology is mostly adopted in subway transfer stations, station entrances and exits, transfer passages and relatively short subway tunnels among urban station areas, approximately accounts for 45% of the total construction proportion, the construction technology is mature, the degree of mechanization is low, main processes are completed by manpower, and construction of partial processes can be completed by a small number of applied engineering machines. For realizing that the mechanized construction of undercut replaces the manpower construction, mechanical equipment must possess the ability that can realize digging in narrow and small space, adorn, mill, the anchor, multiple functions such as auxiliary support, the overall dimension of this kind of equipment can be great, and need lift by crane the equipment through the shaft (the degree of depth exceeds 20 meters) and transport the construction section, shaft size headroom is less, undercut platform truck overall dimension is great, the equipment can't transport the construction section after flat hanging through the wire rope, if break down the well with the equipment, because the equipment of lifting by crane in the pit is limited, complete machine assembling process is comparatively complicated, and assembly quality can't guarantee, can lead to appearing more trouble in the equipment use, and assemble at vertical well mouth, influence construction side construction progress in the assembling process, cause the shutdown, cause the loss for the construction unit.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hoist for secretly dig platform truck makes secretly dig the platform truck when need not dismantle the part or dismantle the part less, transports the construction section from the shaft to use manpower sparingly, improve the efficiency of construction.

In order to achieve the above object, the utility model discloses a lifting appliance for underground excavation trolley, including hanger plate, preceding connecting piece, back connecting piece, first connecting rod and second connecting rod, when this lifting appliance device need work, wherein two second connecting rods are arranged along the width direction parallel of underground excavation trolley, two first connecting rods are respectively overlap and are located the both ends of second connecting rod, the quadrangle that constitutes is arranged in the top of underground excavation trolley; a front connecting piece and a rear connecting piece are arranged on two sides of the underground excavation trolley, the upper end of the front connecting piece is sleeved on the second connecting rod, the lower end of the front connecting piece is fixedly connected with the front end of the track beam, the upper end of the rear connecting piece is sleeved on the second connecting rod, and the lower end of the rear connecting piece is fixedly connected with the rear end of the track beam; the four hanging plates are respectively sleeved at the end part of the second connecting rod and then are fastened by nuts and gaskets; and a steel wire rope is arranged on the hanging plate in a penetrating way and is used for being connected with the hoisting device.

Further, the cross section of the second connecting rod is circular or square.

Further, the length of the front connecting piece is greater than or equal to the length of the rear connecting piece.

Furthermore, the lower ends of the front connecting piece and the rear connecting piece are fixedly connected with the crawler beam through pin shafts.

Further, the lower ends of the front connecting piece and the rear connecting piece are fixedly connected with the crawler beam through bolts.

Furthermore, the lower ends of the front connecting piece and the rear connecting piece are connected with lifting lugs of the underground excavation trolley through shackles, and the lifting lugs are positioned on the crawler beams.

Further, the front connecting piece and the rear connecting piece are rod pieces.

Further, the front connecting piece and the rear connecting piece are steel wire ropes.

The utility model has the advantages that: the utility model discloses a built-up connection of member can transport the shaft with the undercut platform truck smoothly and go, need not dismantle the part of undercut platform truck or dismantle less, can improve the efficiency of construction like this. The rod pieces are connected in a bolt or pin shaft mode, so that the installation and the disassembly are convenient, and the safety is good.

Drawings

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

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic perspective view of the present invention;

in the figure, 1-hanging plate, 2-front connecting piece, 3-rear connecting piece, 4-first connecting rod, 5-second connecting rod and 6-steel wire rope.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, a lifting device for a subsurface-excavation trolley comprises a lifting plate 1, a front connecting piece 2, a rear connecting piece 3, a first connecting rod 4 and a second connecting rod 5, wherein when the lifting device needs to work, the two second connecting rods 5 are arranged in parallel along the width direction of the subsurface-excavation trolley, the two ends of the second connecting rods 5 are respectively sleeved with the two first connecting rods 4, a formed quadrangle is positioned above the subsurface-excavation trolley, the two sides of the subsurface-excavation trolley are respectively provided with the front connecting piece 2 and the rear connecting piece 3, the upper end of the front connecting piece 2 is sleeved on the second connecting rod 3, the lower end of the front connecting piece is fixedly connected with the front end of a track beam, the upper end of the rear connecting piece 3 is sleeved on the second connecting rod 5, and the lower end of the rear connecting piece is fixedly connected with the rear. The four hanging plates 1 are respectively sleeved on the end parts of the second connecting rods 5 and then are fastened by nuts and gaskets. The steel wire rope penetrates through the hanging plate 1 and is used for being connected with the lifting device. The cross section of the second connecting rod 5 is round or square, so that the sleeving and installation of other rod pieces are facilitated. In this embodiment, the length of the front link 2 is greater than that of the rear link 3, so that the front end of the underground excavation truck is inclined downward, facilitating access to a shaft of a relatively small size. Of course, if the size of the shaft is large, the front connecting piece 2 and the rear connecting piece 3 with the same size can be selected to allow the underground excavation trolley to be placed in the shaft in a horizontal posture.

In order to improve the working efficiency, the lifting appliance can be improved in the dismounting and mounting process, the lower ends of the front connecting piece 2 and the rear connecting piece 3 are connected with the track beam by adopting pin shafts, and the connecting mode can be dismounted at a higher speed and can also adopt a bolt connecting mode. The front connecting piece 2 and the rear connecting piece 3 of the embodiment are rod pieces, and the mode of the rod pieces is selected, so that the manufacturing is convenient, the interference of parts of the underground excavation trolley can be easily bypassed, and the assembly is easy. Certainly, when the hoist is assembled, also can change preceding connecting piece 2 and back connecting piece 3 into wire rope, as long as select suitable size can, for local materials, conveniently assemble, can adopt the lower extreme of preceding connecting piece 2 and back connecting piece 3 to be connected with the lug of undercut platform truck through the shackle, the lug is located the track roof beam. Shackles, also called connecting rings, are connecting devices commonly used in mechanical engineering.

The lifting appliance can enable the underground excavation trolley to be kept horizontal to the ground or form a certain inclination angle with the ground to lift, so that the underground excavation trolley can adapt to vertical shafts of different sizes, and the adaptability of the underground excavation trolley is improved. Because the mode of often adopting the dismantlement among the prior art is sent to the shaft in, then assembles, not only influences the construction progress like this, also can influence the equipment quality of undercut platform truck, brings the potential safety hazard for the construction. By adopting the lifting appliance, only a few non-key components need to be disassembled, which is equivalent to the whole lifting appliance is conveyed to a vertical shaft, and the lifting appliance is very convenient to assemble before use and disassemble after use and has very good operability.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes that can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art can be made within the scope of the claims of the present invention.

Claims

1. The utility model provides a hoist for undercut platform truck which characterized in that: the lifting appliance device comprises a lifting plate (1), a front connecting piece (2), a rear connecting piece (3), first connecting rods (4) and second connecting rods (5), wherein when the lifting appliance device needs to work, the two second connecting rods (5) are arranged in parallel along the width direction of the underground excavation trolley, the two first connecting rods (4) are respectively sleeved at the two ends of the second connecting rods (5), and a formed quadrangle is arranged above the underground excavation trolley; a front connecting piece (2) and a rear connecting piece (3) are arranged on two sides of the underground excavation trolley, the upper end of the front connecting piece (2) is sleeved on the second connecting rod (5), the lower end of the front connecting piece is fixedly connected with the front end of the track beam, the upper end of the rear connecting piece (3) is sleeved on the second connecting rod (5), and the lower end of the rear connecting piece is fixedly connected with the rear end of the track beam; the four hanging plates (1) are respectively sleeved at the end part of the second connecting rod (5) and then are fastened by nuts and gaskets; the steel wire rope (6) is arranged on the hanging plate (1) in a penetrating mode and is used for being connected with the lifting device.

2. A spreader for an undercut trolley according to claim 1 wherein: the cross section of the second connecting rod (5) is circular or square.

3. The undermining trolley spreader of claim 1, wherein: the length of the front connecting piece (2) is greater than or equal to that of the rear connecting piece (3).

4. A spreader for an undercut trolley according to claim 1 wherein: the lower ends of the front connecting piece (2) and the rear connecting piece (3) are fixedly connected with the crawler beam through pin shafts.

5. A spreader for an undercut trolley according to claim 1 wherein: the lower ends of the front connecting piece (2) and the rear connecting piece (3) are fixedly connected with the crawler beam through bolts.

6. A spreader for an undercut trolley according to claim 1 wherein: the lower ends of the front connecting piece (2) and the rear connecting piece (3) are connected with lifting lugs of the underground excavation trolley through shackles, and the lifting lugs are located on the track beams.

7. A spreader for an undercut trolley according to claim 1 wherein: the front connecting piece (2) and the rear connecting piece (3) are rod pieces.

8. A spreader for an undercut trolley according to claim 1 wherein: the front connecting piece (2) and the rear connecting piece (3) are steel wire ropes.