Round jacking pipe muck discharging single-arm lifting and exchanging device

Abstract

The utility model discloses a round jacking pipe muck discharging single-arm lifting and exchanging device which comprises two parallel rails laid in a jacking pipe and used for transporting muck buckets and muck and a transport trolley located on the rails, and is characterized in that a lifting mechanism and a pushing mechanism are further arranged in the jacking pipe; the lifting mechanism is provided with a door-shaped support and a lifting assembly installed on the top of the door-shaped support, the outer sides of the two parallel rails are located in the door-shaped support, the lifting assembly is provided with a winch and a steel wire rope, one end of the steel wire rope is connected with the winch, and the other end of the steel wire rope is limited in the middle of the door-shaped support through a pulley. The free ends of the steel wire ropes are provided with hooks; the pushing mechanism comprises jacks arranged on the outer sides of the two parallel rails, the total width of the muck hopper is larger than the distance between the jacks on the two sides and smaller than the width of the inner side of the door-shaped support, and the width of the conveying trolley is smaller than the distance between the jacks on the two sides. According to the utility model, the muck conveying efficiency is greatly improved, and the pipe jacking construction progress is accelerated.

Description

Technical Field

[0001] The utility model belongs to the technical field of track engineering construction, and in particular relates to a circular jacking pipe slag discharge single-arm lifting and exchanging device. Background Art

[0002] At present, most of the slag discharge of earth pressure balance pipe jacking machines uses winches in combination with rail transport vehicles. The winches pull the transport trolley by retracting and releasing the wire rope. With the development of science and technology, electric rail transport vehicles have emerged and are now also used for pipe jacking slag transportation. In the prior art, both of these slag discharge transportation methods are used. The winch can be used for short distances, but it is unsafe to use the winch for long distances. The electric rail transport vehicle has high transportation efficiency and comes with a brake anti-slip system, which greatly improves safety. However, in fact, the space inside the earth pressure balance pipe jacking machine only allows one transport track to be laid. During the transportation of slag, only one transport vehicle is allowed to travel, and one vehicle can only transport one slag bucket. The slag bucket filled with slag is transported from the head of the pipe jacking machine to the outside of the starting tunnel, and then the empty slag bucket is transported from the outside of the starting tunnel to the head of the pipe jacking machine. The slag discharge speed determines the progress of the pipe jacking construction. As the excavation distance of the earth pressure balance pipe jacking machine increases, the slag discharge and back-and-forth transportation distance also increases, which reduces the efficiency of the pipe jacking construction. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a circular jacking pipe slag discharge single-arm lifting and exchanging device to solve the problem that the existing jacking machine can only be equipped with one transport trolley to transport the slag bucket back and forth, which reduces the efficiency of jacking construction.

[0004] In order to achieve the above technical effects, the technical solution adopted by the utility model is:

[0005] A single-arm lifting and exchange device for slag discharge from a circular jacking pipe comprises two parallel tracks laid in the jacking pipe for transporting a slag bucket and slag and a transport trolley located on the tracks, characterized in that a lifting mechanism and a pushing mechanism are also provided in the jacking pipe, the lifting mechanism is provided with a portal bracket and a lifting assembly installed on the top of the portal bracket, the outer sides of the two parallel tracks are located in the portal bracket, the lifting assembly is provided with a winch and a steel wire rope connected to the winch at one end, the other end of the steel wire rope is limited in the middle of the portal bracket by a pulley, and a hook is provided at the free end of the steel wire rope; the pushing mechanism comprises a jack arranged on the outer sides of the two parallel tracks, the total width of the slag bucket is greater than the spacing between the jacks on both sides and less than the inner width of the portal bracket, and the width of the transport trolley is less than the spacing between the jacks on both sides.

[0006] Furthermore, track sleepers are laid at intervals on the inner bottom of the top tube, and track seats and buckling pieces are symmetrically installed at both ends of the track sleepers. Two parallel tracks are arranged on the track seats and fixedly connected to the track seats through buckling pieces.

[0007] Further, a pushing cross beam is installed on the outer sides of the track seats at both ends of multiple adjacent track sleepers in the jacking pipe, and jacks are installed at both ends of the upper surface of the pushing cross beam.

[0008] Further, a lifting ring is provided at the free end of the steel wire rope, and two lifting ropes with hooks installed at both ends are threaded through the lifting ring.

[0009] Further, four lifting lugs are provided on both sides of the top of the muck bucket, with one at the front and one at the rear on each side.

[0010] Further, the portal frame is provided with columns and a top beam. Bracket seats are fixedly installed at both ends of one of the track sleepers in the jacking pipe. The bracket seats are also fixedly connected to the track seats through L-shaped stoppers. The columns are installed on the bracket seats, and the tops of the columns on both sides of the track are fixedly connected through the top beam to form a portal frame. The winch and the pulley are both fixed on the top beam.

[0011] Further, bracket seats are also fixedly installed at both ends of the two track sleepers on the front and rear sides of the columns. A lifting cross beam is erected on the three bracket seats on the same side of the track sleepers, and the columns are installed on the lifting cross beam.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By arranging a lifting mechanism and a pushing mechanism in the jacking pipe, the present utility model can arrange two transport trolleys on the track in the jacking pipe, and exchange the empty muck bucket and the full muck bucket with each other during the transportation process. The empty muck bucket is lifted by the lifting mechanism at the portal frame to vacate the lower passage for the convenient passage of the transport trolley filled with muck. The full muck bucket is jacked up at the pushing mechanism, and then the transport trolleys are exchanged. The outer transport trolley transports the full muck bucket outside the starting hole, and the inner transport trolley transports the empty muck bucket to the jacking pipe head, improving the muck transportation efficiency.

[0014] The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2This is the state diagram of the lifting mechanism of the present utility model when lifting the empty muck bucket;

[0017] Figure 3 It is Figure 2 the enlarged view of part A;

[0018] Figure 4 This is the state diagram of the pushing mechanism of the present utility model when pushing the muck bucket on the transport trolley.

[0019] The labels and corresponding names in the figure are as follows:

[0020] 1. Jacking pipe, 21. Track sleeper, 22. Track seat,

[0021] 23. Track, 24. Fastening piece, 3. Lifting mechanism,

[0022] 31. Gantry bracket, 311. Column, 312. Top beam,

[0023] 313. Bracket seat, 314. Lifting cross beam, 315. Stop block,

[0024] 32. Lifting assembly, 321. Winch, 322. Steel wire rope,

[0025] 323. Pulley, 324. Suspension ring, 325. Suspension rope,

[0026] 326. Hook, 4. Pushing mechanism, 41. Pushing cross beam,

[0027] 42. Jack, 5. Transport trolley, 6. Muck bucket,

[0028] 61. Suspension lug. Detailed implementation mode

[0029] Such as Figures 1-4As shown in the figure, a single-arm lifting and exchanging device for slag discharge of a circular pipe jacking 1 includes two parallel tracks 23 laid in the pipe jacking 1 for transporting slag, a lifting mechanism 3 and a jacking mechanism 4 installed in the pipe jacking 1, and a transport trolley 5 arranged on the tracks 23. Among them, track sleepers 21 are laid at intervals on the inner bottom of the pipe jacking 1. Track seats 22 and clamping members 24 are symmetrically installed at both ends of the track sleepers 21. The two parallel tracks 23 are arranged on the track seats 22 and are fixedly connected to the track seats 22 through the clamping members 24. The lifting mechanism 3 is provided with a gantry bracket 31 and a lifting assembly 32 installed on the top of the gantry bracket 31. The outer sides of the two parallel tracks 23 are located inside the gantry bracket 31. The gantry bracket 31 is provided with columns 311 and a top beam 312. Bracket seats 313 are fixedly installed at both ends of one of the track sleepers 21 in the pipe jacking 1. The bracket seats 313 are also fixedly connected to the track seats 22 through L-shaped stoppers 315. The columns 311 are installed on the bracket seats 313. The tops of the columns 311 on both sides of the track 23 are fixedly connected through the top beam 312 to form the gantry bracket 31. To ensure the stability of the gantry bracket 31, bracket seats 313 are also fixedly installed at both ends of the two track sleepers 21 on the front and rear sides of the columns 311. A lifting cross beam 314 is erected on the three bracket seats 313 on the same side of the track sleepers 21, and the columns 311 are installed on the lifting cross beam 314. The lifting assembly 32 is provided with a winch 321, a pulley 3231, and a steel wire rope 322 with one end connected to the winch 321. The winch 321 and the pulley 323 are both fixed on the top beam 312. The other end (free end) of the steel wire rope 322 is limited in the middle of the gantry bracket 31 through the pulley 323. A sling 324 is provided at the free end of the steel wire rope 322, and two sling ropes 325 with hooks 326 installed at both ends are passed through the sling 324. The jacking mechanism 4 includes a jacking cross beam 41 and a jack 42. The jacking cross beam 41 is erected on the outer ends of the track seats 22 at both ends of multiple adjacent track sleepers 21 in the pipe jacking 1. The jacks 42 are installed at both ends of the upper surface of the jacking cross beam 41. The length of the jacking cross beam 41 is close to the length of the slag bucket 6. The total width of the slag bucket 6 is greater than the distance between the two jacks 42 on both sides and less than the inner width of the gantry bracket 31. The width of the transport trolley 5 is less than the distance between the two jacks 42 on both sides. Four lifting lugs 61 are provided on both sides of the top of the slag bucket 6, and one is provided at the front and rear ends of each side.

[0030] When the utility model is implemented, two transport trolleys are placed on the track, and the lifting mechanism and the pushing mechanism can be set at any position in the jacking pipe. Preferably, the lifting mechanism and the pushing mechanism are set close to the middle of the track. The lifting mechanism and the pushing mechanism are spaced apart by the distance of one to two transport trolleys, and the front and rear order of the lifting mechanism and the pushing mechanism is irrelevant. When in use, the transport trolley close to the starting tunnel entrance first transports the empty slag bucket to the lifting mechanism. The lifting mechanism hooks the four lifting ears of the slag bucket through four hooks to lift the empty slag bucket to a certain height (the height should be sufficient to allow the transport trolley and the slag bucket full of slag above it to pass smoothly from under it). The transport trolley close to the jacking head transports the slag bucket loaded with slag to the pushing mechanism. Four jacks work at the same time to lift the slag bucket loaded with slag and separate it from the transport trolley below. Then the transport trolley moves to the lifting mechanism to receive the empty slag bucket and transport it to the jacking head. Another transport trolley receives the slag bucket loaded with slag and transports it to the outside of the starting tunnel entrance.

[0031] The utility model arranges a lifting mechanism and a pushing mechanism in the jacking pipe, so that two transport trolleys can realize the mutual exchange of the slag buckets thereon in the jacking pipe, thereby greatly improving the slag transportation efficiency and accelerating the jacking construction progress.

[0032] The present invention is not limited to the above-mentioned specific implementation modes. For ordinary technicians in this field, various changes made based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. A circular jacking pipe slag discharge single-arm lifting and exchanging device, comprising two parallel tracks laid in the jacking pipe for transporting the slag bucket and slag and a transport trolley located on the tracks, characterized in that: A lifting mechanism and a pushing mechanism are also provided in the jacking pipe. The lifting mechanism is provided with a gate-type bracket and a lifting assembly installed on the top of the gate-type bracket. The outer sides of the two parallel tracks are located in the gate-type bracket. The lifting assembly is provided with a winch and a steel wire rope connected to the winch at one end. The other end of the steel wire rope is limited in the middle of the gate-type bracket by a pulley, and a hook is provided at the free end of the steel wire rope. The pushing mechanism includes a jack arranged on the outer sides of the two parallel tracks. The total width of the slag bucket is greater than the spacing between the jacks on both sides and less than the inner width of the gate-type bracket. The width of the transport trolley is less than the spacing between the jacks on both sides.

2. A circular jacking slag discharge single-arm lifting exchange device according to claim 1, characterized in that: Track sleepers are laid at intervals on the bottom inner side of the top pipe, and track seats and buckling pieces are symmetrically installed at both ends of the track sleepers. Two parallel tracks are arranged on the track seats and fixedly connected to the track seats through the buckling pieces.

3. A circular jacking pipe slag discharge single-arm lifting exchange device according to claim 2, characterized in that: A jacking beam is installed on the outer ends of the rail seats at both ends of one of the adjacent multiple rail sleepers in the jacking pipe, and jacks are installed on both ends of the upper surface of the jacking beam.

4. A circular jacking slag discharge single-arm lifting exchange device according to claim 1, characterized in that: A lifting ring is arranged at the free end of the steel wire rope, and two lifting ropes with hooks installed at both ends are passed through the lifting ring.

5. A circular jacking slag discharge single-arm lifting and exchanging device according to claim 4, characterized in that: Four lifting ears are arranged on both sides of the top of the slag bucket, and one is arranged at the front and rear ends of each side.

6. A circular jacking pipe slag discharge single-arm lifting and exchanging device according to claim 2, characterized in that: The gate-type bracket is provided with columns and a top beam, and bracket seats are fixedly installed at both ends of one of the track sleepers in the top tube. The bracket seat is also fixedly connected to the track seat through an L-shaped block. The columns are installed on the bracket seat, and the tops of the columns on both sides of the track are fixedly connected through the top beam to form a gate-type bracket, and the winch and pulley are fixed on the top beam.

7. A circular jacking slag discharge single-arm lifting and exchanging device according to claim 6, characterized in that: The two ends of the two rail sleepers on the front and rear sides of the column are also fixedly installed with support seats, and the three support seats located on the same side of the rail sleepers are provided with lifting beams, and the column is installed on the lifting beams.

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