Hydraulic anti-collision beam for shield tunneling machine trailer

Abstract

A hydraulic anti-collision beam for a shield tunneling machine trailer relates to the technical field of shield tunneling machines and is mounted at the bottom of the last section of trailer frame body of the shield tunneling machine. The device comprises a beam body, a supporting seat and a driving device, one end of the beam body is correspondingly hinged to the bottom of the trailer frame body through a hinge shaft, and a driving device used for driving the beam body to deflect along the hinge shaft is installed at the bottom of the trailer frame body. A supporting base capable of blocking the beam body is arranged on the side, away from the hinged shaft, of the bottom of the trailer frame body. Two braking devices are arranged on the beam body at intervals; the device is simple in structure, is installed at the bottom of the last section of trailer frame body of the shield tunneling machine, and does not cause interference on entering and exiting of operators from the trailer frame body; the two braking devices are arranged on the beam body in a spaced mode, the slag car is braked through the braking devices, then the slag car is prevented from directly colliding with the beam body, and the loss is reduced to the maximum extent while the protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a hydraulic anti-collision beam for a shield machine trailer. Background Art

[0002] During the tunneling process of the shield machine, the muck truck needs to be used to continuously transport the muck out of the tunnel; the muck truck runs on the track of the shield machine trailer, and the operators also need to splice the track, clean up the fallen muck and drain the water in the trailer. There is a risk of cross-operation between the battery muck truck and the operators; often when the operators need to work, they need to stop the muck truck behind the last trailer and brake the battery muck truck; but sometimes the tunnel has a downward excavation trend, forming a downhill slope, and the muck truck has the potential energy to move into the shield machine trailer, which poses a certain risk to the operators in front; therefore, it is necessary to set an anti-collision beam on the last trailer of the shield machine to prevent the muck truck from accidentally slipping into the shield machine trailer and causing a safety accident;

[0003] For example, a Chinese patent (publication number: CN116044421A) discloses an anti-collision device for a shield machine, which includes a crossbeam arranged at the entrance of a trailer at the rear of the shield machine, the entrance includes a first column, the crossbeam is rotatably connected to the outer side of the first column through a rotating shaft, and a driving device is also provided on the first column, the driving device is used to drive the crossbeam to rotate around the rotating shaft; the crossbeam of the patent is arranged at the entrance of the last trailer section of the shield machine, which can achieve the technical effect of blocking the muck truck and preventing the muck truck from accidentally slipping into the trailer room of the shield machine; but it also interferes with the entry and exit of the operator, affecting the operator's entry and exit of the trailer; in addition, when the patent structure blocks the muck truck, the muck truck directly collides with the crossbeam, and the crossbeam will transmit the collision force to the trailer frame, which will directly cause damage to the muck truck or the trailer frame, resulting in unnecessary losses. Summary of the invention

[0004] In order to overcome the deficiencies in the background technology, the utility model discloses a hydraulic anti-collision beam for a shield machine trailer.

[0005] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0006] A hydraulic anti-collision beam for a shield machine trailer is installed at the bottom of the last trailer frame of the shield machine; it comprises a beam body, a support seat and a driving device; one end of the beam body is correspondingly hinged to the bottom of the trailer frame body through a hinge shaft, and a driving device for driving the beam body to deflect along the hinge shaft is installed at the bottom of the trailer frame body; a support seat capable of blocking the beam body is provided on the side of the bottom of the trailer frame body away from the hinge shaft; two braking devices are provided at intervals between the beam body and the beam body.

[0007] Preferably, the braking device includes two first guide columns vertically fastened to the corresponding beam body, the first guide column body is slidably matched with a slider, and the column body between the first guide column corresponding to the slider and the beam body is sleeved with a first spring; one side of the slider is vertically slidably matched with a brake iron shoe, and a second spring is provided between the slider and the brake iron shoe for making the brake iron shoe float upward.

[0008] Preferably, the brake shoe is slidably matched with one side of the slider, and the other side of the slider is vertically guided and slidably matched with a second guide column through a guide sleeve. The top of the second guide column is fastened to the brake shoe through a connecting piece, and the second guide column corresponds to the column body sleeve between the guide sleeve and the connecting piece and is provided with a second spring.

[0009] Preferably, a wear-resistant rubber pad is provided at the bottom of the brake iron shoe.

[0010] Preferably, an anti-falling piece for preventing the sliding block from falling off is provided at one end of the first guide column away from the beam body.

[0011] Preferably, the beam body is provided with a plurality of anti-collision buffer pads at intervals along the length direction.

[0012] Preferably, the driving device is a pneumatic cylinder or a hydraulic cylinder.

[0013] Preferably, the beam body is provided with a warning sign.

[0014] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0015] The utility model discloses a hydraulic anti-collision beam for a shield machine trailer. The beam has a simple structure and is installed at the bottom of the last trailer frame of the shield machine. It will not interfere with the operator entering or exiting the trailer frame. Two braking devices are arranged at intervals between the beam body, and the two braking devices are respectively located on two tracks of the shield machine. When a muck truck accidentally slips, the wheels on both sides of the muck truck first contact the two braking devices, and the muck truck is braked by the braking devices, thereby preventing the muck truck from directly colliding with the beam body, thereby minimizing the loss. The beam body can be used as a second laying line to directly block the muck truck, thereby further improving the installation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 It is the structural schematic diagram of the beam body;

[0019] Figure 4 It is a schematic diagram of the structure of the braking device.

[0020] In the figure: 1. trailer frame; 2. beam body; 3. support seat; 4. driving device; 5. articulated shaft; 6. braking device; 6-1. first spring; 6-2. sliding block; 6-3. first guide post; 6-4. second spring; 6-5. guide sleeve; 6-6. second guide post; 6-7. wear-resistant rubber pad; 6-8. anti-slip part; 6-9. brake iron shoe; 7. anti-collision buffer pad. DETAILED DESCRIPTION

[0021] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.

[0022] Embodiment 1, in combination with Figures 1 to 4 , a hydraulic anti-collision beam for a shield machine trailer, installed at the bottom of the last trailer frame 1 of the shield machine; comprising a beam body 2, a support seat 3 and a driving device 4; one end of the beam body 2 is correspondingly hinged to the bottom of the trailer frame 1 through a hinge shaft 5, and a driving device 4 for driving the beam body 2 to deflect along the hinge shaft is installed at the bottom of the trailer frame 1, that is, the beam body 2 can be driven to deflect along the hinge shaft by the driving device 4. Since the trailer frame 1 needs to move along the shield machine track, it is necessary to ensure that the driving device 4 and the beam body 2 are higher than the shield machine track and do not interfere with the shield machine track at all times; a support seat 3 capable of blocking the beam body 2 is provided on the side of the bottom of the trailer frame 1 away from the hinge shaft 5;

[0023] When the beam 2 is parallel to the shield machine track, the beam 2 is in an open state, and the muck truck can walk along the shield machine track to enter the trailer frame 1 to remove the muck; when the staff needs to perform other work tasks in the trailer frame 1, the driving device 4 drives the beam 2 to deflect along the hinge axis until the beam 2 is perpendicular to the shield machine track. At this time, the beam 2 is in a closed state, and the end of the beam 2 away from the hinge axis 5 contacts the support seat 3. The support seat 3 and the hinge axis 5 jointly provide blocking support force for the beam 2 to prevent the muck truck from accidentally slipping into the trailer frame 1 and causing a safety accident.

[0024] The driving device 4 is a cylinder or a hydraulic cylinder, that is, one end of the cylinder or the hydraulic cylinder is hinged to the trailer frame 1, and the other end is hinged to one end of the hinge shaft 5 corresponding to the beam 2, and the beam 2 is deflected by the extension and contraction of the cylinder or the hydraulic cylinder, thereby realizing the action of opening or closing the beam 2;

[0025] Two brake devices 6 are arranged at intervals on the beam body 2. The two brake devices 6 are respectively located on the two tracks of the shield machine. When the muck truck slips unexpectedly, the wheels on both sides of the muck truck first contact the two brake devices 6, and the muck truck is braked by the brake devices 6, thereby preventing the muck truck from directly colliding with the beam body 2, thereby minimizing the loss;

[0026] It should be noted that if the brake device 6 fails unexpectedly, the beam body 2 can be used as a second release line to directly stop the muck truck, further improving the installation performance;

[0027] As attached Figure 4 As shown, the braking device 6 comprises two first guide posts 6-3 which are vertically fastened to the corresponding beam body 2, the first guide post 6-3 column body is slidably matched with a slider 6-2, and the first guide post 6-3 corresponds to the column body between the slider 6-2 and the beam body 2 and is provided with a first spring 6-1; a brake shoe 6-9 is vertically slidably matched with one side of the slider 6-2, and a second spring 6-4 is provided between the slider 6-2 and the brake shoe 6-9 for making the brake shoe 6-9 float upward, that is, during the deflection process of the beam body 2, the brake shoe 6-9 can be moved under the action of the second spring 6-4. Floating above the shield machine track, the brake shoe 6-9 is prevented from interfering with the opening or closing of the beam body 2; when the muck truck accidentally slips, the wheel of the muck truck can first contact the brake shoe 6-9, compress the brake shoe 6-9 with the second spring 6-4 and stick it to the corresponding track of the shield machine, and the brake shoe 6-9 is in friction contact with the corresponding track of the shield machine, so that the muck truck can be effectively braked. At the same time, in the process of braking the muck truck, the brake shoe 6-9 can drive the slider 6-2 to move along the first guide column 6-3 close to the beam body 2, providing a buffer zone for braking the muck truck;

[0028] The brake shoe 6-9 is slidably matched with one side of the slider 6-2, and the other side of the slider 6-2 is vertically guided and slidably matched with a second guide column 6-6 through a guide sleeve 6-5. The top of the second guide column 6-6 is fastened to the brake shoe 6-9 through a connecting piece, and the second guide column 6-6 corresponds to the column body between the guide sleeve 6-5 and the connecting piece. A second spring 6-4 is provided. The structure is simple, the design is ingenious, and the cost of use is greatly reduced.

[0029] Embodiment 2, although the above embodiment can effectively prevent the muck truck from accidentally slipping, it is found in actual use that the braking distance of the brake iron shoes 6-9 is relatively long, and the muck truck still has the risk of colliding with the beam body 2; in order to solve the above technical problems, this embodiment is further improved;

[0030] Combined with Figures 1 to 4, a hydraulic anti-collision beam for a shield machine trailer, which is different from Example 1 in that, on the basis of Example 1, a wear-resistant rubber pad 6-7 is provided at the bottom of the brake iron shoe 6-9, that is, after the wheel of the muck truck hits the brake iron shoe 6-9, the brake iron shoe 6-9 is in friction contact with the corresponding track of the shield machine through the wear-resistant rubber pad 6-7, thereby effectively shortening the braking distance and improving the braking effect;

[0031] In addition, the end of the first guide column 6-3 facing away from the beam body 2 is provided with an anti-dropping member 6-8 for preventing the slider 6-2 from falling off, that is, the anti-dropping member 6-8 can prevent the slider 6-2 from accidentally falling off during the deflection process of opening or closing the beam body 2; it should be noted that the anti-dropping member 6-8 can be a nut or a limit pin.

[0032] Embodiment 3, in combination with Figures 1 to 4 , a hydraulic anti-collision beam for a shield machine trailer, based on embodiment 1 or 2, the beam body 2 is provided with a plurality of anti-collision buffer pads 7 at intervals along the length direction, if the brake device 6 fails unexpectedly, the beam body 2 needs to block the muck truck as the second line of defense, at this time, the anti-collision buffer pad 7 can play a buffering role, reducing the impact force between the muck truck and the beam body 2;

[0033] The beam body 2 is provided with a warning sign, which can remind the operator to pay attention to the state of the beam body 2 and avoid being tripped by the beam body 2.

[0034] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A hydraulic anti-collision beam for a shield machine trailer, installed at the bottom of the last trailer frame (1) of the shield machine; its characteristics are: The invention comprises a beam body (2), a support seat (3) and a driving device (4); one end of the beam body (2) is correspondingly hinged to the bottom of the trailer frame body (1) via a hinge shaft (5), and the bottom of the trailer frame body (1) is provided with a driving device (4) for driving the beam body (2) to deflect along the hinge shaft; a support seat (3) capable of blocking the beam body (2) is provided on the side of the bottom of the trailer frame body (1) away from the hinge shaft (5); and two braking devices (6) are provided at intervals on the beam body of the beam body (2).

2. The hydraulic anti-collision beam for a shield machine trailer according to claim 1, characterized in that: The braking device (6) comprises two first guide columns (6-3) vertically fastened to the corresponding beam body (2); the column body of the first guide column (6-3) is slidably matched with a slider (6-2); the column body between the first guide column (6-3) and the corresponding slider (6-2) and the beam body (2) is sleeved with a first spring (6-1); one side of the slider (6-2) is vertically slidably matched with a brake iron shoe (6-9), and a second spring (6-4) for making the brake iron shoe (6-9) float upward is provided between the slider (6-2) and the brake iron shoe (6-9).

3. The hydraulic anti-collision beam for a shield machine trailer as claimed in claim 2, characterized in that: The brake iron shoe (6-9) is slidably matched with one side of the slider (6-2); the other side of the slider (6-2) is vertically guided and slidably matched with a second guide column (6-6) through a guide sleeve (6-5); the top of the second guide column (6-6) is tightly connected to the brake iron shoe (6-9) through a connecting piece; and the second guide column (6-6) is provided with a second spring (6-4) on the column body between the corresponding guide sleeve (6-5) and the connecting piece.

4. The hydraulic anti-collision beam for a shield machine trailer as claimed in claim 2, characterized in that: A wear-resistant rubber pad (6-7) is provided at the bottom of the brake iron shoe (6-9).

5. The hydraulic anti-collision beam for a shield machine trailer as claimed in claim 2, characterized in that: An anti-dropping piece (6-8) for preventing the sliding block (6-2) from falling off is provided at one end of the first guide column (6-3) facing away from the beam body (2).

6. The hydraulic anti-collision beam for a shield machine trailer according to claim 1 or 2, characterized in that: The beam body (2) is provided with a plurality of anti-collision buffer pads (7) at intervals along the length direction.

7. The hydraulic anti-collision beam for a shield machine trailer according to claim 1 or 2, characterized in that: The driving device (4) is a pneumatic cylinder or a hydraulic cylinder.

8. The hydraulic anti-collision beam for a shield machine trailer according to claim 1 or 2, characterized in that: The beam body (2) is provided with a warning mark.

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