CN218991590U

CN218991590U - Escape structure of tunnel shield machine

Info

Publication number: CN218991590U
Application number: CN202320138198.4U
Authority: CN
Inventors: 李璐乾; 周锡兵; 张子龙; 胡建; 胡启明; 冉全生; 梁盛友; 周波; 谢明坤
Original assignee: China Railway No 8 Engineering Group Co Ltd
Current assignee: China Railway No 8 Engineering Group Co Ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-09
Anticipated expiration: 2033-02-07

Abstract

The utility model discloses a escape structure of a tunnel shield machine, which belongs to the technical field of tunnel construction auxiliary equipment and comprises a shield machine structure for underground tunnel tunneling, wherein the shield machine structure comprises a front shield, a middle shield and a tail shield, a cutter head is arranged on one side of the front shield, an escape assembly is arranged on the tail shield, the escape assembly comprises an oil injection groove which is arranged in the tail shield, an oil drain hole is formed in the surface of the tail shield, and one end of the oil drain hole is communicated with the surface of the oil injection groove; according to the utility model, through the cooperation of the escape assembly and the auxiliary moving assembly, when the shield machine is trapped in the tunnel, a user can fill lubricating oil into the contact position between the shield machine and the tunnel through the oil filling nozzle, the oil filling groove and the oil drain hole, and then push the tail shield through the oil cylinder to assist the escape of the shield machine, and through the arrangement of the device, the escape of the shield machine can be effectively assisted, so that the normal tunneling work of the shield machine is ensured.

Description

Escape structure of tunnel shield machine

Technical Field

The utility model relates to the technical field of tunnel construction auxiliary equipment, in particular to a escape structure of a tunnel shield machine.

Background

In the underground tunneling process of the shield machine, complex geological environments (such as sandy pebble stratum and silt stratum) are encountered, the shield machine is blocked in a tunnel due to soft geology and land collapse or the shield machine self structure fails, so that the shield machine can be trapped and cannot advance, and therefore, the tunnel shield machine escaping structure is required to be provided, and the shield machine is assisted to escape when the shield machine is trapped in the tunnel due to unexpected conditions.

Disclosure of Invention

The utility model aims to provide a escape structure of a tunnel shield machine, which has the advantage of being convenient for escape of the escape structure of the escape shield machine, so as to solve the problems in the background technology.

In order to achieve the above purpose, the utility model provides a escape structure of a tunnel shield machine, which comprises a shield machine structure for underground tunnel tunneling, wherein the shield machine structure comprises a front shield, a middle shield and a tail shield, a cutterhead is arranged on one side of the front shield, an escape assembly is arranged on the tail shield, the escape assembly comprises an oil injection groove which is formed in the tail shield, an oil drain hole is formed in the surface of the tail shield, one end of the oil drain hole is communicated with the surface of the oil injection groove, an oil injection nozzle is communicated with one end of the oil injection groove, and an auxiliary moving assembly is arranged on one side of the tail shield.

Preferably, the auxiliary moving assembly comprises a fixing frame arranged on one side of the tail shield, oil cylinders are fixedly arranged at four corners of one side of the fixing frame, pushing plates are fixedly arranged at telescopic ends of the oil cylinders, and the fixing frame is fixed in a tunnel through the positioning assembly.

Preferably, a rubber protection pad is fixedly arranged on one side, far away from the oil cylinder, of the push plate, and one side, far away from the push plate, of the rubber protection pad is in contact with the surface of the tail shield.

Preferably, the locating component comprises a mounting frame fixedly mounted at the front end and the rear end of one side of the mounting frame, a threaded pipe is rotationally connected to an inner cavity of the mounting frame, two groups of locating rods are connected to the inner cavity of the threaded pipe in a threaded mode, one ends of the locating rods sequentially penetrate through the threaded pipe and the mounting frame and extend to the outer portion of the mounting frame to fixedly mount a broken cone, and a driving component for rotating the threaded pipe is mounted on the mounting frame.

Preferably, the driving assembly comprises a fixing seat fixedly arranged on one side of the fixing frame, a driving motor is fixedly arranged on the surface of the fixing seat, a driving gear is fixedly arranged on an output shaft of the driving motor, a driven gear is meshed on one side of the driving gear, and the driven gear is fixedly arranged on the surface of the threaded pipe.

Preferably, the surfaces of the two groups of positioning rods are provided with external threads matched with the threaded pipes, and the two groups of external threads are arranged in opposite directions.

Preferably, a limiting assembly is further arranged between the positioning rod and the mounting frame, limiting plates are fixedly mounted on the upper side and the lower side of the mounting frame, limiting grooves matched with the limiting plates are formed in the surfaces of the positioning rod, and the inner walls of the limiting grooves are in sliding connection with the surfaces of the limiting plates.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the device, through the cooperation of the escape assembly and the auxiliary moving assembly, when the shield machine is trapped in a tunnel, a user can fill lubricating oil into the contact position between the shield machine and the tunnel through the oil filling nozzle, the oil filling groove and the oil drain hole, then the tail shield is pushed through the oil cylinder to assist the escape of the shield machine, and through the arrangement of the device, the escape of the shield machine can be effectively assisted, so that the normal tunneling work of the shield machine is ensured;

2. according to the utility model, the auxiliary moving assembly can be fixed in the tunnel through the arrangement of the positioning assembly so as to provide supporting force for the oil cylinder, the positioning rod can be prevented from losing the self-moving function along with the rotation of the threaded pipe through the arrangement of the limiting assembly, and the damage to the surface of the tail shield caused by the strong collision of the push plate and the tail shield in the process of pushing the tail shield can be prevented through the arrangement of the rubber protection pad.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a escaping assembly according to the present utility model;

FIG. 3 is a schematic view of an auxiliary moving assembly according to the present utility model;

FIG. 4 is a schematic diagram of a driving assembly according to the present utility model;

fig. 5 is an enlarged view of fig. 4 at a in accordance with the present utility model.

In the figure: 1. front shield; 2. middle shield; 3. tail shield; 4. a cutterhead; 5. an oil injection groove; 6. an oil drain hole; 7. an oil filling nozzle; 8. a fixing frame; 9. an oil cylinder; 10. a push plate; 11. a rubber protective pad; 12. a mounting frame; 13. a threaded tube; 14. a positioning rod; 15. a broken earth cone; 16. a fixing seat; 17. a driving motor; 18. a drive gear; 19. a driven gear; 20. a limiting plate; 21. and a limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the utility model provides a escape structure of a tunnel shield machine, which comprises a shield machine structure for underground tunnel tunneling, wherein the shield machine structure comprises a front shield 1, a middle shield 2 and a tail shield 3, a cutter head 4 is arranged on one side of the front shield 1, an escape assembly is arranged on the tail shield 3, the escape assembly comprises an oil injection groove 5 which is arranged in the tail shield 3, an oil drain hole 6 is arranged on the surface of the tail shield 3, one end of the oil drain hole 6 is communicated with the surface of the oil injection groove 5, and one end of the oil injection groove 5 is communicated with an oil injection nozzle 7;

when the shield tunneling machine is trapped in the tunnel, a user can fill lubricating oil into the oil injection groove 5 through the oil injection nozzle 7, and the lubricating oil can be discharged to the contact position between the shield tunneling machine and the tunnel through the oil discharge hole 6 under the action of pressure along with continuous injection of the lubricating oil, so that the friction force between the shield tunneling machine and the tunnel is reduced, and conditions are created for the escape of the lubricating oil;

as preferable, an auxiliary moving component is arranged on one side of the tail shield 3, the auxiliary moving component comprises a fixing frame 8 arranged on one side of the tail shield 3, oil cylinders 9 are fixedly arranged at four corners of one side of the fixing frame 8, a push plate 10 is fixedly arranged at the telescopic ends of the oil cylinders 9, a rubber protection pad 11 is fixedly arranged on one side, far away from the oil cylinders 9, of the push plate 10, and one side, far away from the push plate 10, of the rubber protection pad 11 is in contact with the surface of the tail shield 3;

after oiling is completed, a user can open the oil cylinder 9 through the external controller, the telescopic end of the oil cylinder 9 can drive the push plate 10 to move, the movement of the push plate 10 can push the shield machine to move so as to achieve escape of the shield machine, a layer of protection can be arranged between the push plate 10 and the tail shield 3 through the arrangement of the rubber protection pad 11, and the tail shield 3 is prevented from being damaged by the push plate 10 when the tail shield 3 is pushed, and the oil cylinder 9 in the embodiment is a 200T jack oil cylinder;

the fixing frame 8 is fixed in the tunnel through a positioning assembly, the positioning assembly comprises a mounting frame 12 fixedly mounted at the front end and the rear end of one side of the fixing frame 8, a threaded pipe 13 is rotatably connected to an inner cavity of the mounting frame 12, two groups of positioning rods 14 are connected to an inner cavity of the threaded pipe 13 in a threaded manner, external threads matched with the threaded pipe 13 are formed on the surfaces of the two groups of positioning rods 14, the two groups of external threads are arranged in opposite directions, one end of each positioning rod 14 sequentially penetrates through the threaded pipe 13 and the mounting frame 12 and extends to the outer portion of the mounting frame 12 to fixedly mount a ground breaking cone 15, a driving assembly for rotating the threaded pipe 13 is mounted on the fixing frame 8, the driving assembly comprises a fixing seat 16 fixedly mounted at one side of the fixing frame 8, a driving motor 17 is fixedly mounted on the surface of the fixing seat 16, a driving gear 18 is fixedly mounted on an output shaft of the driving motor 17, a driven gear 19 is meshed on one side of the driving gear 18, and the driven gear 19 is fixedly mounted on the surface of the threaded pipe 13;

through setting up of locating component, can fix the mount 8 in the inside of the tunnel, in order to provide support for the cylinder 9, when needing to use the auxiliary assembly of getting rid of the trouble to help the shield machine get rid of the trouble, the user can put the mount 8 in the corresponding place of the tail shield 3, then the user opens the driving motor 17 through the external controller, the output shaft of the driving motor 17 drives the driving gear 18 to rotate, the rotation of the driving gear 18 drives the driven gear 19 to rotate, the rotation of the driven gear 19 drives the screwed pipe 13 to rotate, because the surface of two sets of locating rods 14 is offered the external screw thread with opposite directions, can drive two sets of locating rods 14 to move when the screwed pipe 13 rotates, the movement of locating rods 14 can drive the broken cone 15 of one end to move, insert the locating rod 14 into the inside of the tunnel, in order to fix a position of use of the mount 8, and then provide support for the cylinder 9;

it is worth to say that a limiting component is further arranged between the positioning rod 14 and the mounting frame 12, limiting plates 20 are fixedly mounted on the upper side and the lower side of the mounting frame 12, limiting grooves 21 matched with the limiting plates 20 are formed in the surfaces of the positioning rod 14, and the inner walls of the limiting grooves 21 are in sliding connection with the surfaces of the limiting plates 20;

through the setting of spacing subassembly, can play spacing effect to locating lever 14, prevent that locating lever 14 from following screwed pipe 13 and rotating, locating lever 14 can drive spacing groove 21 at limiting plate 20's surface removal at the in-process that removes.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tunnel shield constructs quick-witted structure of getting rid of poverty, is including the shield constructs quick-witted structure that is used for underground tunnel tunnelling, shield constructs quick-witted structure and includes preceding shield (1), well shield (2) and tail shield (3), blade disc (4), its characterized in that are installed to one side of preceding shield (1): be provided with the subassembly that gets rid of poverty on tail shield (3), the subassembly that gets rid of poverty is including offering in tail shield (3) inside oil filler groove (5), oil drain hole (6) have been offered on the surface of tail shield (3), the one end and the surface intercommunication of oil filler groove (5) of oil drain hole (6), the one end intercommunication of oil filler groove (5) has grease nipple (7), one side of tail shield (3) is equipped with auxiliary movement subassembly.

2. The tunnel shield machine escape structure of claim 1, wherein: the auxiliary moving assembly comprises a fixing frame (8) arranged on one side of the tail shield (3), oil cylinders (9) are fixedly arranged at four corners of one side of the fixing frame (8), pushing plates (10) are fixedly arranged at the telescopic ends of the oil cylinders (9), and the fixing frame (8) is fixed in a tunnel through the positioning assembly.

3. The tunnel shield machine escape structure of claim 2, wherein: one side of the push plate (10) far away from the oil cylinder (9) is fixedly provided with a rubber protection pad (11), and one side of the rubber protection pad (11) far away from the push plate (10) is in contact with the surface of the tail shield (3).

4. The tunnel shield machine escape structure of claim 2, wherein: the locating component comprises a mounting frame (12) fixedly mounted at the front end and the rear end of one side of a fixing frame (8), a threaded pipe (13) is rotationally connected with an inner cavity of the mounting frame (12), two groups of locating rods (14) are connected with the inner cavity of the threaded pipe (13) in a threaded mode, one end of each locating rod (14) sequentially penetrates through the threaded pipe (13) and the mounting frame (12) and extends to the outer portion of the mounting frame (12) to fixedly mount a broken earth cone (15), and a driving component for rotating the threaded pipe (13) is mounted on the fixing frame (8).

5. The escape structure of the tunnel shield machine according to claim 4, wherein: the driving assembly comprises a fixing seat (16) fixedly arranged on one side of a fixing frame (8), a driving motor (17) is fixedly arranged on the surface of the fixing seat (16), a driving gear (18) is fixedly arranged on an output shaft of the driving motor (17), a driven gear (19) is meshed on one side of the driving gear (18), and the driven gear (19) is fixedly arranged on the surface of a threaded pipe (13).

6. The escape structure of the tunnel shield machine according to claim 4, wherein: external threads matched with the threaded pipe (13) are formed on the surfaces of the two groups of positioning rods (14), and the two groups of external threads are arranged in opposite directions.

7. The escape structure of the tunnel shield machine according to claim 4, wherein: still be equipped with spacing subassembly between locating lever (14) and mounting bracket (12), the upper and lower both sides of mounting bracket (12) are all fixed mounting has limiting plate (20), spacing groove (21) with limiting plate (20) looks adaptation are seted up on the surface of locating lever (14), the inner wall and the surface sliding connection of limiting plate (20) of spacing groove (21).