Drilling mechanism for tunnel construction

Abstract

The drilling mechanism for tunnel construction comprises a bearing supporting column, a bottom plate, a first sliding seat, a second sliding seat and a third sliding seat, the bottom plate is installed at the upper end of the bearing supporting column, a side plate is vertically installed on the left side of the upper surface of the bottom plate, and the first sliding seat is installed on the right side of the upper surface of the bottom plate in a sliding mode. The second sliding seat is slidably mounted on the upper surface of the first sliding seat. In the utility model, when more soil particles are gathered in the hole and the drill bit is difficult to continuously enter, the second hydraulic cylinder drives the second sliding seat to retract to enable the drill bit to leave the hole, the third hydraulic cylinder drives the third sliding seat to move forwards to enable the outlet position of the air pipe to be close to the drilling position, and the air pump works to enable the air flow to pass through the air pipe; a part of soil gathered in the drill hole can be blown out by air flow sprayed out of the air pipe outlet; and then, the third sliding seat and the air pipe retract together, the second sliding seat and the drill bit stretch out together, the drill bit continues to enter the drilling position for drilling, and the drill bit can drill a hole with the consistent depth.

Description

TECHNICAL FIELD

[0001] The utility model relates to tunnel construction technical field, concretely is a kind of drilling mechanism for tunnel construction. BACKGROUND

[0002] The inner wall of tunnel needs to install segment, power supply contact network, side wall cable, pipeline and emergency conveying platform and electromechanical, install these equipment to need to drill a large number of installation holes on, to fix segment.Metro tunnel drilling faces the present situation that drilling quantity increases greatly, tunnel type is various, construction period is increasingly nervous, construction requirement improves year by year;Some common drilling methods of the prior art are that construction vehicle drives into tunnel, the front end of the mechanical arm of vehicle is equipped with motor and drill bit, drill bit is aimed at the inner wall of tunnel, to drill installation hole.

[0003] However, a large amount of heat is generated during drilling, which can reduce the service life of the drill bit and cause damage, and a large amount of soil particles are generated in the hole, which can block the further advancement of the drill bit, causing inconvenience to drilling.

[0004] To solve the above problems, the utility model is proposed. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model aims to provide a drilling mechanism for tunnel construction to solve the problems mentioned in the background art.

[0006] To solve the above technical problems, the utility model provides the following technical scheme.

[0007] The utility model provides a drilling mechanism for tunnel construction, which comprises a bearing support, a bottom plate, a first sliding seat, a second sliding seat and a third sliding seat, the bottom plate is installed at the upper end of the bearing support, a side plate is vertically installed on the left upper surface of the bottom plate, the first sliding seat is slidingly installed on the right upper surface of the bottom plate, the second sliding seat is slidingly installed on the upper surface of the first sliding seat, and the third sliding seat is slidingly installed on the upper surface of the second sliding seat.

[0008] A first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder are horizontally installed from bottom to top on the right side of the side plate, the telescopic rod of the first hydraulic cylinder is fixed to the side of the first sliding seat, the telescopic rod of the second hydraulic cylinder is fixed to the side of the second sliding seat, and the telescopic rod of the third hydraulic cylinder is fixed to the side of the third sliding seat.

[0009] A drill bit is horizontally arranged in the second sliding seat, a pipeline is arranged in the first sliding seat, a spray head is arranged at the front end of the pipeline, an air pipe is arranged in the third sliding seat, the spray head is aimed at the lower surface of the drill bit, and the air pipe is aimed at the upper surface of the drill bit.

[0010] Preferably, the first sliding seat is in the shape of a "Fang", the upper surface of the lower horizontal part of the first sliding seat is provided with a liquid pump and a plurality of pipe support seats, the pipes are installed in the pipe support seats, one end of the pipes is connected to the water outlet of the liquid pump, the lower surface of the upper horizontal part of the first sliding seat is provided with a liquid tank, and the liquid tank is communicated with the liquid pump through a liquid conveying pipe.

[0011] Preferably, the second sliding seat is in the shape of a "Fang", the upper surface of the lower horizontal part of the second sliding seat is provided with a motor, and one end of the drill bit is detachably connected to the driving shaft end of the motor.

[0012] Preferably, the third sliding seat is in the shape of an "L", the upper surface of the horizontal part of the third sliding seat is provided with an air pump and a plurality of air pipe support seats, the air pipes are installed in the air pipe support seats, one end of the air pipes is connected to the outlet of the air pump, and the inlet of the air pump is provided with an air inlet pipe.

[0013] Preferably, the upper surface of the right side of the bottom plate, the upper surface of the first sliding seat and the upper surface of the second sliding seat are all provided with a sliding groove.

[0014] Preferably, the lower surface of the bottom plate is symmetrically provided with mounting blocks in front and back, the mounting blocks are mounted on the front and back positions of the upper end of the bearing support column, and the lower surface of the bearing support column is provided with a flange plate.

[0015] Preferably, the upper side of the side surface of the liquid tank is provided with an angle block, and the angle block is mounted on the lower surface of the upper horizontal part of the first sliding seat through an internal hexagonal bolt.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The bearing support column can be installed at the front end of the engineering vehicle mechanical arm through the flange plate, so that the whole device can be lifted, and the drill bit faces the surface of the tunnel wall; in use, referring to the drawings, the first sliding seat is retracted, the second sliding seat and the third sliding seat are extended, the motor works to drive the drill bit to rotate, and the second hydraulic cylinder drives the second sliding seat to continue to move forward, so that the drill bit can drill into the tunnel wall.

[0018] In the drilling process, the liquid pump works to send the cooling liquid in the liquid tank into the pipes and spray it out from the spray head, and the cooling liquid adheres to the surface of the drill bit, so that the temperature of the surface of the drill bit can be reduced.

[0019] When more soil particles are gathered in the hole, the drill bit is difficult to continue to enter, the second hydraulic cylinder drives the second sliding seat to retract, so that the drill bit is away from the hole, the third hydraulic cylinder drives the third sliding seat to move forward, so that the outlet position of the air pipe is close to the drilling position, and the air pump works to make the airflow pass through the air pipe, so that the airflow sprayed out of the air pipe outlet can blow away part of the soil gathered in the drilling hole.

[0020] Then, the third sliding seat and the air pipe are retracted together, the second sliding seat and the drill bit are extended together, the drill bit continues to enter the drilling position to drill, and the drill bit can drill a hole with a depth meeting a requirement.

[0021] The drill bit of the present application can attach some cooling liquid on the surface during work, so that the temperature of the drill bit is prevented from being too high, and the soil particles in the hole are blown out, the resistance encountered by the drill bit during advancement is reduced, and the drill bit is not prone to damage and has a longer service life. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is an overall perspective view of the drill bit extension, pipeline extension and air pipe retraction of the present application;

[0023] Figure 2 It is a perspective view of the first sliding seat, pipeline support seat and pipeline of the present application;

[0024] Figure 3 It is a perspective view of the liquid tank of the present application;

[0025] Figure 4 It is an overall perspective view of the drill bit retraction, pipeline retraction and air pipe extension of the present application;

[0026] Figure 5 It is an overall front view of the drill bit retraction, pipeline retraction and air pipe extension of the present application.

[0027] In the figure: 1, bearing support post; 11, flange plate; 2, bottom plate; 21, mounting block; 22, side plate; 23, first hydraulic cylinder; 24, second hydraulic cylinder; 25, third hydraulic cylinder; 3, first sliding seat; 31, pipeline support seat; 32, liquid pump; 33, liquid delivery pipe; 34, liquid tank; 341, corner block; 35, pipeline; 36, spray head; 4, second sliding seat; 41, motor; 42, drill bit; 5, third sliding seat; 51, air pipe support seat; 52, air pump; 53, air pipe; 54, air inlet pipe; 6, sliding chute. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] As Figures 1-5 shown, a drilling mechanism for tunnel construction, comprising a bearing pillar 1, a bottom plate 2, a first sliding seat 3, a second sliding seat 4 and a third sliding seat 5, the bottom plate 2 is installed on the upper end of the bearing pillar 1, the upper surface of the bottom plate 2 is vertically installed with a side plate 22 on the left side, the first sliding seat 3 is slidingly installed on the upper surface of the right side of the bottom plate 2, the second sliding seat 4 is slidingly installed on the upper surface of the first sliding seat 3, and the third sliding seat 5 is slidingly installed on the upper surface of the second sliding seat 4.

[0031] The right side of the side plate 22 is horizontally installed with a first hydraulic cylinder 23, a second hydraulic cylinder 24 and a third hydraulic cylinder 25 from bottom to top, the telescopic rod of the first hydraulic cylinder 23 is fixed on the side of the first sliding seat 3, the telescopic rod of the second hydraulic cylinder 24 is fixed on the side of the second sliding seat 4, and the telescopic rod of the third hydraulic cylinder 25 is fixed on the side of the third sliding seat 5.

[0032] The second sliding seat 4 is horizontally provided with a drill bit 42, the first sliding seat 3 is provided with a pipeline 35, the front end of the pipeline 35 is provided with a spray head 36, the third sliding seat 5 is provided with an air pipe 53, and the spray head 36 is opposite to the lower surface of the drill bit 42, and the air pipe 53 is opposite to the upper surface of the drill bit 42.

[0033] The first sliding seat 3 is in the shape of "Fang", the upper surface of the lower horizontal part of the first sliding seat 3 is provided with a liquid pump 32 and a plurality of pipeline support seats 31, the pipeline 35 is installed in the plurality of pipeline support seats 31, one end of the pipeline 35 away from the spray head 36 is connected with the water outlet of the liquid pump 32, the lower surface of the upper horizontal part of the first sliding seat 3 is installed with a liquid tank 34, and the liquid tank 34 is communicated with the liquid pump 32 through a liquid conveying pipe 33.

[0034] The second sliding seat 4 is in the shape of "Fang", the upper surface of the lower horizontal part of the second sliding seat 4 is provided with a motor 41, and one end of the drill bit 42 is detachably installed on the driving shaft end of the motor 41.

[0035] The third sliding seat 5 is in the shape of "L", the upper surface of the horizontal part of the third sliding seat 5 is provided with an air pump 52 and a plurality of air pipe support seats 51, the air pipe 53 is installed in the air pipe support seats 51, one end of the air pipe 53 is connected with the outlet of the air pump 52, and an air inlet pipe 54 is installed on the inlet of the air pump 52.

[0036] The upper surface of the right side of the bottom plate 2, the upper surface of the first sliding seat 3 and the upper surface of the second sliding seat 4 are all provided with a sliding groove 6.

[0037] The lower surface of the bottom plate 2 is symmetrically provided with mounting blocks 21 in front and back, the mounting blocks 21 are installed on the front and back positions of the upper end of the bearing pillar 1, and the lower surface of the bearing pillar 1 is provided with a flange plate 11.

[0038] The side of the liquid tank 34 is provided with an angle block 341, which is installed on the lower surface of the upper horizontal portion of the first sliding seat 3 by means of an internal hexagonal bolt.

[0039] In summary, the bearing support 1 can be installed at the front end of the engineering vehicle mechanical arm through the flange plate 11, so that the entire device can be lifted, and the drill bit 42 can be directed to the surface of the tunnel wall; in use, referring to Figure 5 、 Figure 1 The first sliding seat 3 is retracted, the second sliding seat 4 and the third sliding seat 5 are extended, the motor 41 works to drive the drill bit 42 to rotate, and the second hydraulic cylinder 24 drives the second sliding seat 4 to continue to move forward, so that the drill bit 42 can drill into the tunnel wall;

[0040] During drilling, the liquid pump 32 works to send the cooling liquid in the liquid tank 34 into the pipeline 35 and spray it out of the spray head 36, so that the cooling liquid adheres to the surface of the drill bit 42, thereby reducing the temperature of the surface of the drill bit 42;

[0041] Referring to Figure 4 When a large number of soil particles are accumulated in the hole, it is difficult for the drill bit 42 to continue to enter, the second hydraulic cylinder 24 drives the second sliding seat 4 to retract, so that the drill bit 42 moves away from the hole, the third hydraulic cylinder 25 drives the third sliding seat 5 to move forward, so that the outlet position of the air pipe 53 is close to the drilling position, and the air pump 52 works to make the airflow pass through the air pipe 53, so that the airflow sprayed out of the outlet of the air pipe 53 can blow away a part of the soil accumulated in the hole;

[0042] Then, the third sliding seat 5 and the air pipe 53 are retracted together, the second sliding seat 4 and the drill bit 42 are extended together, and the drill bit 42 continues to enter the drilling position to drill, so that the drill bit 42 can drill a hole with a depth that meets the requirements;

[0043] The drill bit 42 of the present application can adhere to some cooling liquid on the surface during work, so as to avoid that the temperature of the drill bit is too high, and the soil particles in the hole can be blown out, so as to reduce the resistance encountered by the drill bit during advancement, and the drill bit is not easy to be damaged and has a longer service life.

[0044] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A drilling mechanism for tunnel construction, characterized by: It includes bearing pillar (1), bottom plate (2), first slide (3), second slide (4) and third slide (5), the bottom plate (2) is installed on the upper end of bearing pillar (1), the upper surface left side of bottom plate (2) is vertically installed with side plate (22), the first slide (3) is slidingly installed on the upper surface right side of bottom plate (2), the second slide (4) is slidingly installed on the upper surface of first slide (3), the third slide (5) is slidingly installed on the upper surface of second slide (4); The right side of the side plate (22) is horizontally installed with a first hydraulic cylinder (23), a second hydraulic cylinder (24) and a third hydraulic cylinder (25) from bottom to top, the telescopic rod of the first hydraulic cylinder (23) is fixed on the side of the first slide (3), the telescopic rod of the second hydraulic cylinder (24) is fixed on the side of the second slide (4), and the telescopic rod of the third hydraulic cylinder (25) is fixed on the side of the third slide (5); The second slide (4) is provided with a drill bit (42) horizontally, the first slide (3) is provided with a pipeline (35), the front end of the pipeline (35) is provided with a spray head (36), the third slide (5) is provided with an air pipe (53), the spray head (36) faces the lower surface of the drill bit (42), and the air pipe (53) faces the upper surface of the drill bit (42).

2. The drilling mechanism for tunnel construction according to claim 1, wherein: The first slide (3) is in the shape of " " type, the upper surface of the lower horizontal part of the first slide (3) is provided with a liquid pump (32) and a plurality of pipeline support seats (31), the pipeline (35) is installed in the plurality of pipeline support seats (31), one end of the pipeline (35) away from the spray head (36) is connected with the water outlet of the liquid pump (32), and the lower surface of the upper horizontal part of the first slide (3) is installed with a liquid tank (34), and the liquid tank (34) is communicated with the liquid pump (32) through a liquid delivery pipe (33).

3. The drilling mechanism for tunnel construction according to claim 1, wherein: The second slide (4) is in the shape of " " type, the upper surface of the lower horizontal part of the second slide (4) is provided with a motor (41), and one end of the drill bit (42) is detachably installed with the driving shaft end of the motor (41).

4. The drilling mechanism for tunnel construction according to claim 1, wherein: The third slide (5) is in the shape of "L", the upper surface of the horizontal part of the third slide (5) is provided with an air pump (52) and a plurality of air pipe support seats (51), the air pipe (53) is installed in the air pipe support seat (51), one end of the air pipe (53) is connected with the outlet of the air pump (52), and the inlet of the air pump (52) is installed with an air inlet pipe (54).

5. The drilling mechanism for tunnel construction according to claim 1, wherein: The upper surface right side of the bottom plate (2), the upper surface of the first slide (3) and the upper surface of the second slide (4) are all provided with a sliding groove (6).

6. The drilling mechanism for tunnel construction according to claim 1, wherein: The lower surface of the bottom plate (2) is symmetrically provided with a mounting block (21) in front and back, the mounting block (21) is installed on the front and back positions of the upper end of the bearing pillar (1), and the lower surface of the bearing pillar (1) is provided with a flange plate (11).

7. The drilling mechanism for tunnel construction according to claim 2, wherein: The upper side of the side of the liquid tank (34) is provided with an angle block (341), and the angle block (341) is installed on the lower surface of the upper horizontal part of the first slide (3) through an internal hexagonal bolt.

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