CN218088650U

CN218088650U - Lifting and slag turning device for TBM construction

Info

Publication number: CN218088650U
Application number: CN202222489392.5U
Authority: CN
Inventors: 谢希杰; 张艳军; 曾勇; 许全; 杨新举; 马朋超; 张善立
Original assignee: China Railway Tunnel Stock Co Ltd
Current assignee: China Railway Tunnel Stock Co Ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2022-12-20
Anticipated expiration: 2032-09-20

Abstract

The utility model discloses a hoisting slag-turning device for TBM construction, which aims to solve the technical problems that the transportation cost is high and the cleaning efficiency is low when a large amount of sludge is accumulated in the main beam area base and the inverted arch block installation area in a TBM tunnel and a flat car is used; the device comprises a bracket, a plurality of sliding rails/grooves arranged on the bracket and a hoisting piece matched and connected with the sliding rails/grooves; the top of the bracket is provided with a cross beam, the slide rail/groove is arranged on the cross beam, and an inclined strut is arranged between the cross beam and the slide rail/groove; the utility model discloses conveying efficiency is high, the cost of transportation is low, has promoted the efficiency that the TBM construction was tunneled greatly.

Description

Lifting slag turning device for TBM construction

Technical Field

The application relates to the technical field of TBM shield construction, in particular to a hoisting slag-turning device for TBM construction.

Background

With the rapid development of economy and the increase of population in China, ground transportation cannot meet the requirements of people for living and going out, underground is used as a safe, convenient and wide available space, and the development and utilization of underground urban rail transit is an important trend of the development of the world at present. In the construction of a hard rock tunnel, two methods, i.e., a drilling and blasting method and a TBM (tunnel boring and blasting) method, are basically adopted. The drilling and blasting method has the advantages of low cost, flexible construction and the like, and has the defects of low efficiency, poor construction conditions and large potential safety hazard. Compared with a drilling and blasting method, the TBM method is a rapid, safe and efficient tunnel forming method which utilizes a full-face tunnel boring machine to form in one step, and has strong adaptability to a tunneling rock stratum, high production efficiency and high construction safety.

Because the tonnage of slag transportation is higher and is different from slag transportation by a drilling and blasting method, and in consideration of continuous running speed, technical reliability and economic rationality, a special mining low-pollution diesel locomotive is adopted for traction, and the special mining low-pollution diesel locomotive comprises a rail transportation system consisting of a slag-tapping mine car, a flat material car, a concrete tank car and a personnel car; when a TBM machine tunnels in a weak and broken stratum, the amount of generated muck is large, so that a large amount of mud is accumulated on the base of a main beam area and an inverted arch block installation area, and the construction process is influenced; the current mode of clearing up dregs is mostly the workman scarfing cinder, is subject to the manual work height and can't directly pack the mud sediment into the mine car of slagging tap, and transports the mud sediment to the sediment fill on the flatbed, transports outside the hole by the locomotive again, because the tunnel fortune is long apart from longer, the sediment fill capacity is less, leads to that mud sediment cleaning efficiency is not high, influence construction progress, increases the cost of transportation.

The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

Disclosure of Invention

According to one aspect of the disclosure, a hoisting slag-turning device for TBM construction is provided, which comprises a bracket, a plurality of slide rails/grooves arranged on the bracket, and at least two hoisting pieces which are in sliding connection with the slide rails/grooves in a matching way and are used for realizing hoisting and turning of corresponding slag buckets in a matching way; the top of the support is provided with a cross beam, the sliding rail/groove is arranged on the cross beam, and an inclined strut is arranged between the cross beam and the sliding rail/groove.

In some embodiments of the present disclosure, a top cover is provided on top of the slide/channel.

In some embodiments of the present disclosure, the sliding rail/groove is an i-shaped steel, and two ends of the i-shaped steel are respectively provided with a limiting baffle.

In some embodiments of the disclosure, the sling is a gourd chain.

In some embodiments of the present disclosure, a reinforcing plate rib is provided at the bottom of the bracket.

One or more technical solutions provided in the embodiments of the present application have at least any one of the following technical effects or advantages:

set up a support that spanes the transportation orbit in the TBM tunnel to set up the slide rail that the crossbeam was laid for the fixed connection level at the top of support, through the slag bucket that sets up calabash chain hoist and mount flatbed on the slide rail to the mine car height of slagging tap, and overturn, unload the sediment, effectively solved among the prior art need utilize the less flatbed slag bucket of volume many times to slag tap and lead to the technical problem that conveying efficiency is low, the cost of transportation is high, and then promoted the efficiency of slagging tap, shorten construction cycle.

Drawings

Fig. 1 is a schematic structural diagram of a hoisting slag-turning device for TBM construction in an embodiment of the present application.

Fig. 2 is a schematic structural diagram (without a top cover) of a hoisting slag-turning device for TBM construction according to an embodiment of the present application.

Fig. 3 is a schematic view of a connection structure of a hoist chain block and an i-shaped steel in an embodiment of the present application.

In the above figures, 1, a support; 11. a cross beam; 12. reinforcing ribs; 2. h-shaped steel; 21. a limit baffle; 22. a cushion block; 3. chain rewinding of the gourd; 4. and a top cover.

Detailed Description

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application. References in this application to "first," "second," etc. are used to distinguish between the objects described and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application includes both direct and indirect connections (couplings), unless otherwise specified.

The embodiment of the application provides a lift by crane and turn over sediment device for TBM construction, has solved among the prior art artifical scarfing cinder operation height limited, can't directly clear up the mud sediment to the bulky mine car of slagging tap in, leads to frequently by the technical problem that the cost of transportation that the flatbed transportation caused is high, conveying efficiency is low.

In order to solve the problem that the height of the manual slag removal operation is limited, the technical scheme in the embodiment of the application has the following general idea:

a support is arranged on a TBM main machine, two sides of the support cross a rail transportation track in a hole, a cross beam is arranged at the top of the support, three I-steel-shaped slide rails are arranged on the cross beam, hoist chain blocks matched with the three I-steel-shaped slide rails are arranged on the slide rails, mud is manually cleaned to a slag hopper of a flat car, the slag hopper of the flat car is lifted by the hoist chain blocks to the height of the slag hopper of the slag car, meanwhile, the three hoist chain blocks are matched with each other, the hoist chain blocks in charge of overturning continue to ascend to the height, and the other two hoist chain blocks descend to the height of the hoist chain blocks to form a height difference, so that the slag hopper of the flat car is overturned, and the dumped mud enters the slag hopper of the slag car; then, lowering the slag hopper of the flat car to the original position by a hoist chain block, and waiting for the mud slag in the slag hopper of the next flat car to dump; the volume of the slag hopper of the slag-tapping mine car is full, then the slag-tapping mine car carries out slag-tapping transportation, the transportation frequency of slag tapping by the flat car is greatly reduced, the transportation cost is reduced, and the slag-tapping efficiency is improved.

In order to better understand the technical scheme of the application, the technical scheme is described in detail in the following with reference to the accompanying drawings and specific embodiments.

Example one

The embodiment discloses a hoisting slag-turning device for TBM construction, which comprises a bracket 1, a plurality of slide rails/grooves arranged on the bracket 1 and hoisting pieces matched and connected with the slide rails/grooves, and is shown in figure 2.

The support 1 comprises an upright post for supporting the whole weight of the device, a cross beam 11 fixedly connected to the top of the upright post for mounting a slide rail, and a reinforcing rib 12 arranged at the fixed connection intersection of the upright post and the cross beam 11; the upright columns comprise vertical upright columns and Z-shaped structural upright columns, and the upright columns are made of Q235 material steel, so that the manufacturing cost is low, the structural stability is high, and the strength requirement is met; the upright columns on one side are manufactured into a Z-shaped structure, a continuous belt conveyor is installed in the TBM tunnel, and the Z-shaped structure needs to be provided with a certain inclination angle to meet the installation requirement in order to meet the space use requirement; and a reinforcing rib 12 is arranged at the bottom of the bracket 1 and used for preventing the bottom of the bracket 1 from deforming under stress.

The sliding rails are uniformly distributed on the cross beam 11 at the top of the bracket 1 along the horizontal direction, and the sliding rails arranged in the middle are slightly higher than the sliding rails on the two sides in the vertical direction through the cushion blocks 22, so that the lifting piece arranged on the sliding rails can lift and turn over the slag hopper of the flat car; the sliding rail is made of I-shaped steel 2, and two ends of the I-shaped steel 2 are respectively provided with a limiting baffle 21 so as to prevent a lifting piece matched with the sliding rail from falling off in the moving process; reinforcing ribs 12 are arranged at the fixed connection points of the I-shaped steel 2 and the cross beam 11 to ensure the structural stability and the stress supporting strength of the I-shaped steel 2.

The hoist and mount piece is calabash chain block 3, see fig. 3, calabash chain block 3 is in through cooperating the roll setting with spout on the I-shaped steel 2 the top of support 1, calabash chain block 3 independently controls respectively to the realization is to functions such as the lifting of sediment fill, upset.

A top cover 4 is welded on the top of the I-shaped steel 2 in a top fixing mode, and referring to fig. 1, the phenomenon that the slag body on the top of the tunnel falls to damage workers and equipment is avoided.

The operation and use method/principle of the hoisting slag-turning device for TBM construction is as follows:

(1) Manually transferring a large amount of sludge accumulated on the base of the main beam area and the inverted arch block installation area into a slag hopper of the flat car;

(2) After the slag hopper of the flat car moves to the position of the slag hopper transport crane, a hoist chain block 3 arranged on the I-shaped steel 2 synchronously lifts the slag hopper to the height of the slag discharging mine car;

(3) Wherein the hoist chain block 3 on one side of the slag bucket continuously rises, and the hoist chain block 3 on the other side descends to form a height difference, so that the slag bucket turns over and unloads slag;

(4) The slag bucket is reset through the hoist chain block 3 to wait for the hoisting of the next slag bucket.

Although preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims

1. A lifting slag-turning device for TBM construction is characterized by comprising a bracket, a plurality of slide rails/grooves arranged on the bracket and at least two lifting pieces which are matched with the slide rails/grooves and are in sliding connection and used for lifting and turning corresponding slag buckets; the top of the support is provided with a cross beam, the sliding rail/groove is arranged on the cross beam, and an inclined strut is arranged between the cross beam and the sliding rail/groove.

2. The hoisting slag turning device for TBM construction according to claim 1, wherein a top cover is arranged on the top of the slide rail/groove.

3. The hoisting slag-turning device for TBM construction according to claim 1, wherein the slide rail/groove is an I-shaped steel, and two ends of the I-shaped steel are respectively provided with a limit baffle.

4. The hoisting slag turning device for TBM construction according to claim 1, wherein the hoisting piece is a hoist chain block.

5. The hoisting slag turning device for TBM construction according to claim 1, wherein a reinforcing plate rib is arranged at the bottom of the bracket.