CN209654054U - A kind of lining of railway tunnel two construction working rig - Google Patents

Abstract

An operating machine for the secondary lining construction of a railway tunnel, comprising a track portal frame, a trolley, a motor, a traction guide device and an electric control box, the trolley is arranged on the outside of the track portal frame, the motor and the trolley are connected by a traction rope, and the traction guide device is arranged on the track On the inner side of the mast, the traction guide device is fixedly connected with the track mast, and an electric control box is arranged on the inner side of the track mast. The utility model can ensure the smooth passage of material transportation and reduce the mutual interference between the working procedures. The track gantry meets the uninterrupted traffic of vehicles and improves the mechanization ability; The structure is simple and light, and it is easy to use and operate; steps and railings are arranged on both sides, making it safe and convenient to get on and off the trolley; the inner side of the track is covered with safety nets, making the operation safe.

Description

An operating machine for the construction of the secondary lining of a railway tunnel

technical field

The utility model relates to the technical field of tunnel construction equipment. More specifically, the utility model relates to a working machine for railway tunnel secondary lining construction.

Background technique

With the improvement of my country's economic development level and the increase of the scale of high-speed railway construction, people's awareness of safety, quality and environmental protection and energy conservation has been further enhanced. Demand needs to be further increased. In 2008, the Ministry of Railways released the "Guiding Opinions on the Configuration of Railway Tunnel Construction Machinery" No. [2008] No. 777. The construction party is actively promoting the mechanization process of tunnel construction, but the construction equipment still lags behind the construction level of other developed countries in the same period. Mechanized supporting equipment can carry out rapid mechanized construction only under the condition of good stability of hard rock or surrounding rock. Efficiency, can not form a relatively complete advanced mechanized operation line. In particular, the degree of localization of supporting machinery and equipment for the processes of shotcrete anchoring, support and secondary concrete lining (secondary lining) is extremely low, which completely restricts the progress and overall development of mechanized construction of railway tunnels in my country.

At present, the secondary lining construction of tunnels generally has a low degree of mechanization and imperfect supporting facilities. The reasons are: (1) For a long time, my country's demographic dividend and surplus cheap labor market have caused owners and construction parties to pay insufficient attention to mechanized construction. (2) One of the characteristics of engineering projects is that one-time projects implemented cannot be repeated, each project is accounted for separately, and long-term planning is not emphasized. (3) The project-based management of the assessment cost of the construction unit makes the project manager unwilling to invest too much in research on mechanization and so on.

According to the existing literature and the current preliminary investigation, the application of tunnel mechanization is relatively strong in tunnel excavation. Some key equipment, such as roadheaders and rock drilling rigs, are basically imported equipment and localized. The degree is not high. The particularity of tunnel construction has always restricted the advancement of mechanization. Although various construction units have been working hard in this area in recent years, the progress is relatively slow and homogenization is common. In terms of mechanization of the second lining of the tunnel The landmark results achieved are also unsatisfactory.

The mechanical equipment used in the secondary lining of the tunnel includes cleaning of the primary support surface, bolting of the primary support surface, geotextile laying, waterproof board laying, steel bar binding and laying, secondary lining construction, secondary lining inspection and repair, concrete secondary lining maintenance, and power supply system. Following up the laying, wind system support and maintenance, etc., some simple and targeted machines have been developed for the above-mentioned processes, but in the special narrow space of the tunnel, there is a lot of mutual interference, which affects the connection between processes, and the loss of cross-stacking is relatively large. Large, some equipment is equipped, but because of its single function, it affects other operations and is forced to be idle.

In the cleaning of the initial support surface, the bolting of the initial support surface, and the laying of geotextiles, scaffolding is used to set up a platform to install four casters at the bottom, and the operation is manually pushed to occupy the working channel; in terms of waterproof board laying and steel bar binding layout, adopt Reinforced waterproof board binding platform, low degree of mechanization; secondary lining inspection and repair, concrete secondary lining maintenance, power supply system follow-up laying, wind system support and maintenance, etc. use scaffolding with casters, and scissor-type hydraulic aerial work vehicles are also used in tunnels. The operation at the center line occupies the operation channel, which affects the cross operation. Especially in the construction of single-track railway tunnels, most of the equipment cannot be used at all due to the space occupied.

The existing technical solutions have a low degree of mechanization, a large amount of manual labor, inconvenient operation, difficult operations, great safety hazards, and low efficiency; they are only based on the single function of a certain process design, and cannot give full play to the effectiveness of the equipment. There is a lot of interference; some equipment operations occupy the passage too much, which affects the material transportation passage for the operation of the working face, resulting in a high idle rate of the configured equipment.

Utility model content

The purpose of the utility model is to provide an operating machine for railway tunnel secondary lining construction, which can overcome the defects of the prior art and solve the technical problems of inconvenient operation and low efficiency.

In order to achieve the above object, the utility model adopts the following technical scheme: an operating machine for the second lining construction of a railway tunnel, including a track portal frame, a trolley, a motor, a traction guide device and an electric control box, the trolley is arranged on the outside of the track portal frame, and the motor It is connected with the trolley through the traction rope, the traction guide device is set on the inside of the track door frame, the traction guide device is fixedly connected with the track door frame, and an electric control box is installed inside the track door frame.

In order to facilitate the movement of the trolley on the track gantry, the track gantry is equipped with two arc-shaped tracks, and the inner side of the two arc-shaped tracks is provided with a support gantry, and the arc-shaped track and the support gantry are fixedly connected. The wheelbase is equal on both sides.

The trolley is provided with a trolley chassis frame, wheels are arranged below the trolley chassis frame, a working platform is provided above the trolley chassis frame, and traction beams are provided at the front and rear ends of the trolley chassis frame.

In order to facilitate the pulling of the trolley by the traction rope and ensure the safe operation of the trolley, a guide pulley is provided at the bottom of the support mast, and a tension limiter is provided below the guide pulley. There are pinch rollers, and the traction guiding device is provided with a traction rope, which passes through the pinch rollers and is connected with the traction beam through idler rollers, guide pulleys and tension limiters.

Preferably, a moving wheel is provided at the bottom of the track gantry, and a steering wheel is provided on the moving wheel, and the moving wheel is fixedly connected with the track gantry through the steering wheel, so as to facilitate the movement and steering of the working machine.

Preferably, in order to prevent the trolley from moving to a position too low to cause danger, a limiter is provided at the bottom of the track mast.

Preferably, in order to prevent the trolley from being overloaded, a tension limiter is provided on the track portal frame, and the tension limiter is arranged at the bottom end of the support portal frame.

Preferably, in order to facilitate construction personnel to climb, step railings are provided on both sides of the track gantry.

Preferably, in order to prevent personnel from being injured by equipment during construction, a safety net is provided on the track portal frame.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

While the second lining is operating normally, it can ensure the smooth passage of construction material transportation on the front face, reduce or eliminate the problem of mutual interference between the operations between the processes; improve the mechanization ability of the second lining construction related operations; this operating machine can be used as For the platform of other operations, corresponding operating devices are installed on the platform to achieve multi-purpose; flexible, the cart can travel horizontally and vertically, the trolley can run around the tunnel contour line, there is no dead angle in the tunnel section operation, and the clearance of the track gantry meets the uninterrupted passage of vehicles ; Good safety performance, perfect protection device, simple and light structure; high degree of automation, high control positioning accuracy, easy to use and operate; stepped steps and railings are arranged on both sides of the circular track, making it safe and convenient to get on and off the trolley; Safety net, job safety.

Description of drawings

Fig. 1 is the structural representation of the operating machine used for the construction of the second lining of the railway tunnel provided by the utility model;

Fig. 2 is the side view of the operating machine used for the construction of the second lining of the railway tunnel provided by the utility model;

Fig. 3 is a structural schematic diagram of the track gantry assembly of the operating machine used for the construction of the second lining of the railway tunnel provided by the utility model;

Fig. 4 is the schematic diagram of the trolley power traction system of the operating machine used for the second lining construction of the railway tunnel provided by the utility model;

Fig. 5 is the structural schematic diagram of the trolley of the operating machine used for the construction of the second lining of the railway tunnel provided by the utility model;

Fig. 6 is a side view of the trolley of the working machine used for the construction of the second lining of the railway tunnel provided by the utility model;

Fig. 7 is a schematic diagram of the operation machine moving left in the tunnel for the construction of the second lining of the railway tunnel provided by the utility model;

Fig. 8 is a schematic diagram of rightward movement of the operating machine used for the construction of the second lining of the railway tunnel provided by the utility model.

Explanation of main component symbols

In the figure: 1. Track gantry; 1-1. Arc track; 1-2. Supporting gantry; 2. Trolley; 2-1. Wheel; 2-2. Trolley chassis; 2-3. Trolley platform; 2 -4. Traction beam; 3. Motor; 4. Traction guide device; 4-1. Guide pulley; 4-2. Roller; 4-3. Nip roller; 4-4. Traction rope; 5. Electric control box; 6. Moving wheel; 7. Limiter; 8. Tension limiter; 9. Step railing; 10. Steering wheel; 11. Safety net.

Detailed ways

Below in conjunction with accompanying drawing and the embodiment of the utility model, the technical scheme of the utility model is described in further detail.

An operating machine for the second lining construction of a railway tunnel, see Fig. 1-Fig. Track 1-1, the lower part of the two arc-shaped rails 1-1 is provided with a support door frame 1-2, and the arc-shaped track 1-1 and the support door frame 1-2 are fixed by bolts; the upper part of the track door frame 1 is provided with a trolley 2, Dolly 2 is provided with dolly chassis frame 2-2, and the bottom of dolly chassis frame 2-2 is provided with wheel 2-1, and the wheelbase on both sides is equal to two arc track 1-1 spacings, and dolly chassis frame 2-2 There is a working platform 2-3 on the top, and the front and rear ends of the trolley chassis frame 2-2 are equipped with traction beams 2-4. The motor 3 is connected with the trolley 2 through the traction rope 4-4; the bottom end of the supporting mast 1-2 is provided with guide The pulley 4-1 is provided with a tension limiter 8 under the guide pulley 4-1; the traction guide device 4 is provided above the support gate frame 1-2, and one end of the traction guide device 4 is connected with the support gate frame 1-2 through bolts, and the traction guide The other end of the device 4 is provided with an idler roller 4-2, the middle part of the traction guide device 4 is provided with a pinch roller 4-3, the traction guide device 4 is provided with a traction rope 4-4, the traction rope 4-4 passes through the pinch roller 4-3 and It is connected with the traction beam 2-4 through the supporting roller 4-2, the guide pulley 4-1 and the tension limiter 8;

Track door frame 1 bottom is provided with moving wheel 6, and moving wheel 6 is provided with steering wheel 10, and steering wheel 10 is fixed on the track door frame 1 by bolt, and track door frame 1 is provided with limiter 7. Both sides of the track door frame 1 are provided with step railings 9, and the track door frame 1 is provided with a safety net 11.

Working principle: The multi-purpose arch bridge operating machine running around the contour line of the second lining of the railway tunnel, through the arc track 1-1 on the track gantry 1 and the trolley power traction system, the trolley 2 passes through the traction beam 2-4, pulls The guiding device 4 runs along the outline of the tunnel. There is a level sensor (electronic balance pendulum) on the trolley to adjust the trolley platform to always be in a horizontal position through a feedback control circuit. The working machine can move longitudinally and laterally under the action of the moving wheel 6 and the steering wheel 10.

When in use, move the operating machine to the designated position, lower the position of the trolley 2 through the electric control box 5, place the construction materials on the trolley 2, and climb to the trolley 2 through the stepped railings 9 on both sides of the track portal frame 1, Adjust the trolley 2 to the construction position through the electric control box 5, and the construction personnel can start working.

Example 1

The overall structure of the track mast 1 is a bolted combination of steel structural parts, the operating machine is hydraulic and electric control, the moving wheel 6 and the steering wheel 10 are solid rubber tire-type electric drive devices with frequency conversion speed regulation and automatic steering; working platforms 2-3 Equipped with a self-balancing device, the level can be adjusted when the trolley 2 runs around the circular track. The working platform 2-3 consists of a basic platform and a mobile widening platform. The two-layer structure is driven by worm gear and worm and the friction surface of PTFE material Nested slide guide, traction guide device 4 is composed of two-way electric winding mechanism and rope, pulley, idler roller, pressure roller, etc.; safety device is equipped with rope tension limiter 8, trolley displacement travel limiter 7, platform level Potentiometer, working machine steering sensor, cart deflection correction device, wedge type magnetic braking device is provided between trolley 2 and arc track 1-1.

The operating machine for the construction of the second lining of the railway tunnel provided by this technical solution can ensure the smooth passage of the construction material transportation channel in front of the tunnel face while the second lining is operating normally, reducing or eliminating the problem of mutual interference between the operations between the processes; The mechanization capability of the related operations of the second lining construction; the operating machine can be used as a platform for other operations, and the corresponding operating devices are installed on the platform to achieve multi-purpose; it is flexible, the cart can run horizontally and vertically, and the trolley can run around the tunnel contour line. There is no dead angle in the section operation, and the clearance of the track gantry meets the uninterrupted traffic of vehicles; the safety performance is good, the protection device is perfect, the structure is simple and light; the degree of automation is high, the control and positioning accuracy is high, and the operation is convenient; steps and railings are arranged on both sides of the circular track, It is safe and convenient to get on and off the trolley; the inner side of the track (that is, under the trolley) is covered with safety nets, making the operation safe.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (10)

1. a kind of railway tunnel two serves as a contrast construction working rig, including trolley (2), motor (3), traction are guide device (4) and automatically controlled Case (5), it is characterised in that: further include track door frame (1), be equipped with trolley (2) outside the track door frame (1), the trolley (2) It is connect with motor (3) by traction rope (4-4), traction guide device (4), the traction is equipped on the inside of the track door frame (1) Guide device (4) is fixedly connected with track door frame (1), is equipped with electric cabinet (5) inside the track door frame (1).

2. railway tunnel two according to claim 1 serves as a contrast construction working rig, it is characterised in that: the track door frame (1) For arc.

3. railway tunnel two according to claim 2 serves as a contrast construction working rig, it is characterised in that: the track door frame (1) Including arc track (1-1) and support door frame (1-2), the support door frame (1-2) is set to arc track (1-1), the arc Shape track (1-1) is fixedly connected with support door frame (1-2).

4. railway tunnel two according to claim 3 serves as a contrast construction working rig, it is characterised in that: the trolley (2) is equipped with Dolly chassis rack (2-2), dolly chassis rack (2-2) lower section are equipped with wheel (2-1), two side wheel of wheel (2-1) Away from equal with two arc track (1-1) spacing, it is equipped with workbench (2-3) above the dolly chassis rack (2-2), it is described The dolly chassis rack rear and front end (2-2) is equipped with draw beam (2-4).

5. railway tunnel two according to claim 4 serves as a contrast construction working rig, it is characterised in that: the support door frame (1- 2) bottom end is equipped with leading block (4-1), is equipped with tension limiter (8) below the leading block (4-1).

6. railway tunnel two according to claim 5 serves as a contrast construction working rig, it is characterised in that: the traction guide device (4) one end is fixedly connected with support door frame (1-2), and traction guide device (4) other end is equipped with carrying roller (4-2), described to lead Draw and be equipped with nip rolls (4-3) in the middle part of guide device (4), the traction guide device (4) is equipped with traction rope (4-4), the traction rope (4-4) passes through nip rolls (4-3), and passes through carrying roller (4-2), leading block (4-1) and tension limiter (8) and draw beam (2-4) Connection.

7. railway tunnel two according to claim 6 serves as a contrast construction working rig, it is characterised in that: the track door frame (1) Bottom end be equipped with movable pulley (6), the movable pulley (6) be equipped with steering wheel (10), the movable pulley (6) by steering wheel (10) with Track door frame (1) is fixedly connected.

8. railway tunnel two according to claim 7 serves as a contrast construction working rig, it is characterised in that: the track door frame (1) It is equipped with limiter (7).

9. railway tunnel two according to claim 7 serves as a contrast construction working rig, it is characterised in that: the track door frame (1) It is equipped with step railing (9).

10. railway tunnel two according to claim 7 serves as a contrast construction working rig, it is characterised in that: the track door frame (1) It is equipped with safety net (11).