Miniature shield tunneling machine structure

Abstract

The utility model discloses a miniature shield tunneling machine structure which comprises a shield tunneling machine body, a driving mechanism, a cutter head and an air pressure bin. The shield tunneling machine main body comprises a front shield, a middle shield and a tail shield which are connected in sequence; a first partition plate is arranged in the front shield, and an opening is formed in the position, deviating from the middle, of the first partition plate. The driving mechanism is arranged in the middle of the first partition plate, and the output end of the driving mechanism is connected with the cutter head; a soil bin is defined by the cutter head, the first partition plate and the front shield. A second partition plate is arranged in the middle shield; the air pressure bin is fixed to the second partition plate, and door plates are arranged on the two sides of the air pressure bin. A through hole corresponding to the door plate is formed in the second partition plate. The utility model relates to the technical field of shield tunneling machine air pressure bins, through the arrangement, a miniature shield tunneling machine can also have the function of under-pressure bin opening operation, and the application safety and reliability of the shield tunneling machine are improved.

Description

Technical Field

[0001] The utility model belongs to the field of shield machines, relates to a pneumatic chamber technology, and is specifically a micro shield machine structure. Background Art

[0002] At present, when the cutterhead tools of a shield machine are damaged due to the terrain during the shield construction process, and the operator needs to replace or repair the cutterhead tools, in order to ensure construction safety, it is necessary to first pressurize the soil in front of the cutterhead with gas to maintain pressure balance and ensure that the soil will not collapse. Then the operator completes the repair or replacement of the cutterhead tools under this pressure to ensure that the shield machine can continue to tunnel normally. At present, medium and large shield machines mainly add an air pressure chamber device above the drive mechanism to perform air pressurization operations on the soil to ensure construction safety. However, this arrangement has certain limitations. Specifically, the drive mechanism and the air pressure chamber device are arranged together, and the space occupied by the two in the vertical direction is relatively large, which cannot meet the application of micro shield machines.

[0003] Therefore, a micro shield machine structure is needed to solve the above problems. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a micro shield machine structure so that the micro shield machine can also have the function of pressure-opening operation, thereby improving the safety and reliability of the shield machine application. The present invention provides a driving mechanism and a pneumatic chamber, and independently arranges the driving mechanism and the pneumatic chamber inside the front shield and the middle shield respectively, so as to avoid the technical defects caused by the driving mechanism and the pneumatic chamber being arranged together, and by providing an opening on the first partition, a door panel on the pneumatic chamber, and a through hole corresponding to the door panel on the second partition, so that when the cutterhead needs to be replaced, the operator can pass through the door panel, the through hole and the opening of the pneumatic chamber in sequence to enter the soil chamber for operation, that is, the shield machine can realize the function of pressure-opening operation while meeting the micro requirements, so as to effectively improve the safety and reliability of the shield machine application.

[0005] To achieve the above-mentioned object, the first aspect of the present invention provides a micro shield machine structure, including a shield machine body, a drive mechanism, a cutter head and an air pressure chamber;

[0006] The shield machine body includes a front shield, a middle shield and a tail shield connected in sequence;

[0007] The front shield is provided with a first partition plate, and an opening is provided at a position deviating from the middle of the first partition plate;

[0008] The driving mechanism is arranged in the middle of the first partition, and the output end is connected to the cutter head;

[0009] A soil bin is formed between the cutterhead, the first partition plate and the front shield;

[0010] The middle shield is built with a second partition;

[0011] The air pressure chamber is fixed on the second partition plate, and is provided with door panels on both sides;

[0012] Wherein, the second partition plate is provided with a through hole corresponding to the door panel.

[0013] Furthermore, the front shield and the middle shield, as well as the middle shield and the tail shield are connected via articulated cylinders.

[0014] Furthermore, the first partition plate and the second partition plate are both configured as circular structures.

[0015] Furthermore, the air pressure chamber is arranged at a position where the second partition deviates from the center of the circle.

[0016] Furthermore, the tail shield has a built-in assembly machine.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] By setting up a driving mechanism and a pneumatic chamber, and independently setting the driving mechanism and the pneumatic chamber inside the front shield and the middle shield respectively, the technical defects caused by setting the driving mechanism and the pneumatic chamber together are avoided, and by setting an opening on the first partition, a door panel on the pneumatic chamber and a through hole corresponding to the door panel on the second partition, when the cutter head needs to be replaced, the operator can pass through the door panel, through hole and opening of the pneumatic chamber in turn to enter the soil chamber for operation, so that the shield machine can realize the function of opening the chamber under pressure while meeting the micro needs. Therefore, the scope of application and applicable scenarios of the shield machine can be effectively improved, thereby meeting the application needs of personnel entering the chamber for pressure work under complex formation working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a micro shield machine structure in one embodiment of the present utility model;

[0021] Figure 2 For this utility model Figure 1 Cross-sectional view in the A direction.

[0022] Figure Number:

[0023] 1. Shield machine body; 11. Front shield; 12. Middle shield; 13. Tail shield; 2. Drive mechanism; 3. Cutterhead; 4. Air pressure chamber; 41. Door panel; 5. First partition; 51. Opening; 6. Soil chamber; 7. Second partition; 71. Through hole; 8. Articulated cylinder; 9. Assembly machine. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 and Figure 2 The first embodiment of the present invention provides a micro shield machine structure, including a shield machine body 1, a drive mechanism 2, a cutter head 3 and an air pressure chamber 4.

[0026] The shield machine body 1 includes a front shield 11, a middle shield 12 and a tail shield 13 connected in sequence.

[0027] Furthermore, the front shield 11 has a built-in first partition 5 , and an opening 51 is provided at a position offset from the center of the first partition 5 .

[0028] The driving mechanism 2 is arranged in the middle of the first partition 5 , and the output end is connected to the cutter head 3 .

[0029] It should be noted that a soil bin 6 is formed between the cutter disc 3 , the first partition plate 5 and the front shield 11 , so an operator can move through the opening 51 into the soil bin 6 to repair or replace the cutter disc 3 .

[0030] In addition, the opening 51 can also be used for transmitting the gas output by the air pressure chamber 4 to ensure that the soil in the soil chamber 6 and in front of the cutter head 3 will not collapse, thereby improving safety.

[0031] In addition, the middle shield 12 has a built-in second partition 7, and the air pressure chamber 4 is fixed on the second partition 7, so that the air pressure chamber 4 and the driving mechanism 2 are respectively located at different positions of the shield machine body 1, so as to avoid the defect of the existing technology that the driving mechanism 2 and the air pressure chamber 4 are arranged together and occupy a large space.

[0032] The air pressure chamber 4 is provided with door panels 41 on both sides, and the second partition plate 7 is provided with through holes 71 corresponding to the door panels 41. Therefore, when the door panels 41 on both sides of the air pressure chamber 4 are in the open state, the operator can sequentially pass through the door panels 41, through holes 71, and opening 51 of the air pressure chamber 4 to enter the soil chamber 6 to replace or repair the cutterhead 3. This ensures that the arrangement of the drive mechanism 2 and the air pressure chamber 4 does not interfere with the inspection and maintenance of the cutterhead 3. This enables the shield machine to meet the needs of micro-scale while also being able to perform pressurized chamber opening operations.

[0033] This device is provided with a driving mechanism 2 and a pneumatic chamber 4, and the driving mechanism 2 and the pneumatic chamber 4 are independently arranged inside the front shield 11 and the middle shield 12 respectively, so as to avoid the technical defects caused by the driving mechanism 2 and the pneumatic chamber 4 being arranged together, and by arranging an opening 51 on the first partition 5, a door panel 41 on the pneumatic chamber 4 and a through hole 71 corresponding to the door panel 41 on the second partition 7, so that when the cutter head 3 needs to be replaced, the operator can pass through the door panel 41, the through hole 71 and the opening 51 of the pneumatic chamber 4 in sequence to enter the soil chamber 6 to perform operations, so that the shield machine can realize the function of opening the chamber under pressure while meeting the micro requirements, so it can effectively improve the scope of application and applicable scenarios of the shield machine, thereby meeting the application requirements of personnel entering the chamber under pressure to work under complex formation working conditions.

[0034] In this embodiment, the front shield 11 and the middle shield 12 as well as the middle shield 12 and the tail shield 13 are connected via an articulated oil cylinder 8 to improve connection strength.

[0035] like Figure 2 As shown, the first partition plate 5 and the second partition plate 7 are both configured as circular structures.

[0036] The air pressure chamber 4 is arranged at a position away from the center of the second partition 7 so that a large space (such as Figure 2 Between the bottom wall of the middle air pressure chamber 4 and the bottom wall of the middle shield 12) to assist in installing other electronic equipment.

[0037] In other embodiments, the tail shield 13 is equipped with an assembling machine 9 for rapid installation of segments. This is a prior art and will not be described in detail here.

[0038] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A micro shield machine structure, characterized in that: It comprises a shield machine body (1), a driving mechanism (2), a cutterhead (3) and an air pressure chamber (4); The shield machine body (1) comprises a front shield (11), a middle shield (12) and a tail shield (13) which are connected in sequence; The front shield (11) is internally provided with a first partition (5), and an opening (51) is provided at a position deviating from the middle of the first partition (5); The driving mechanism (2) is arranged in the middle of the first partition (5), and the output end is connected to the cutter head (3); A soil bin (6) is formed between the cutter head (3), the first partition plate (5), and the front shield (11); The middle shield (12) is internally provided with a second partition (7); The air pressure chamber (4) is fixed on the second partition (7), and door panels (41) are provided on both sides; Wherein, a through hole (71) corresponding to the door panel (41) is provided on the second partition plate (7).

2. The micro shield machine structure according to claim 1, characterized in that: The front shield (11) and the middle shield (12), as well as the middle shield (12) and the tail shield (13), are connected via an articulated oil cylinder (8).

3. The micro shield machine structure according to claim 1, characterized in that: The first partition plate (5) and the second partition plate (7) are both configured as circular structures.

4. The micro shield machine structure according to claim 3, characterized in that: The air pressure chamber (4) is arranged at a position deviating from the center of the second partition (7).

5. The micro shield machine structure according to claim 1, characterized in that: The tail shield (13) is equipped with an assembling machine (9).

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