Shield tunneling machine cooling device facilitating assembly

Abstract

The application discloses a shield machine cooling device convenient to assemble, which comprises a fan cooler body, a main walking wheel group installed at the bottom of the fan cooler body and used for moving the fan cooler body in the shield machine, and at least two locking mechanisms installed at the outer side of the fan cooler body and used for locking the fan cooler body at a specific position in the shield machine. Each locking mechanism comprises an extension rod fixed to the outer side of the fan cooler body and a locking plate fixed to the extension end of the extension rod and used for abutting against the inner wall of the shield machine. The shield machine cooling device convenient to assemble can adjust the position of the cooling device according to the part needing to be cooled in the shield machine, and the locking installation process and the contact locking process are relatively simple and fast.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring machine (TBM) cooling technology, and more specifically to a cooling device for TBMs that is easy to assemble. Background Technology

[0002] Currently, most cooling devices for tunnel boring machines on the market are fixedly installed, meaning they are directly installed at the location where cooling is needed, such as the rear of the cutterhead. This makes it difficult to flexibly adjust the position of the cooling device, and assembly and disassembly are quite complicated. Therefore, there is an urgent need for a cooling device for tunnel boring machines that is easy to assemble and can solve the above-mentioned technical defects. Summary of the Invention

[0003] The present invention provides a cooling device for a tunnel boring machine that is easy to assemble. The device can be locked in position by means of a telescopic rod and a locking plate. It can also be released from the locking plate and the inner wall of the tunnel boring machine by means of a telescopic rod, and the position of the cooling device can be adjusted after the lock is released.

[0004] The present invention discloses a cooling device for a tunnel boring machine (TBM) that is easy to assemble, comprising: an air cooler body on which a fan is mounted; a main traveling wheel assembly installed at the bottom of the air cooler body for the air cooler body to travel along the axial direction of the TBM inside the TBM; and a locking mechanism installed on the outside of the air cooler body for locking the air cooler body at a specific traveling position inside the TBM, the locking mechanism comprising a telescopic rod fixed to the outside of the air cooler body and capable of radial extension and retraction along the TBM, and a locking plate disposed at the telescopic end of the telescopic rod for abutting against the inner wall of the TBM.

[0005] A further improvement of the present invention is that the locking plate is an arc-shaped plate, and the curvature of the arc-shaped plate is adapted to the inner wall of the tunnel boring machine.

[0006] A further improvement of the present invention is that it also includes at least two auxiliary traveling wheels installed on the outside of the air cooler body. The auxiliary traveling wheels can switch between an extended state and a retracted state. When in the extended state, the auxiliary traveling wheels roll against the inner wall of the tunnel boring machine; when in the retracted state, the auxiliary traveling wheels disengage from the inner wall of the tunnel boring machine.

[0007] A further improvement of the present invention is that at least two movable frames are installed on the outside of the air cooler body, and each of the auxiliary walking wheels is installed on the outside of the air cooler body through one of the movable frames. Each movable frame includes: a pair of limiting plates fixed to the outside of the air cooler body; a bidirectional lead screw rotatably passing through the pair of limiting plates; a drive motor fixed to the outside of the air cooler body, the drive end of the drive motor being coaxially fixed to one end of the lead screw; a pair of threaded blocks, the pair of threaded blocks being respectively screwed to two opposite threaded sections of the bidirectional lead screw, and the pair of threaded blocks being located between the pair of limiting plates; a pair of hinge rods, the first ends of the pair of hinge rods being respectively hinged to the pair of threaded blocks; a wheel seat, a hinge shaft being fixedly passed through the wheel seat, the second ends of the pair of hinge rods being hinged to the hinge shaft, and the auxiliary walking wheel being fixed to the side of the wheel seat away from the air cooler body.

[0008] A further improvement of the present invention is that it also includes a base installed at the bottom of the air cooler body, the base comprising: a base plate fixed to the bottom of the air cooler body, the main travel wheel assembly being installed at the bottom of the base plate; a second drive motor fixed to the bottom of the base plate, the drive end of the second drive motor being arranged in a vertical direction, and a first gear being coaxially fixed at the end of the drive end; and a wheel axle rotatably connected to the bottom of the base plate, the wheel axle being arranged in a horizontal direction, the main travel wheel assembly being fixedly passed through the wheel axle, and a second gear being fixedly passed through the wheel axle, the second gear, the main travel wheel assembly, and the wheel axle being coaxially arranged, and the second gear meshing with the first gear.

[0009] A further improvement of the present invention is that the telescopic rod is a linear cylinder.

[0010] This invention provides a cooling device for tunnel boring machines that is easy to assemble. The device can be locked in position by the cooperation of a telescopic rod and a locking plate. It can also be released from the locking plate and the inner wall of the tunnel boring machine by the telescopic rod. After the lock is released, the position of the cooling device can be adjusted. It is flexible in use and can be adjusted according to the parts of the tunnel boring machine that need to be cooled. The locking and installation process and the locking process are both simple and quick. Attached Figure Description

[0011] Figure 1 This is a schematic cross-sectional view of the cooling device of the present invention; Figure 2 This is a schematic diagram of the main walking wheel assembly structure of the present invention; Figure 3 This is a schematic diagram of the movable frame and auxiliary walking wheels of the present invention; Figure 4 This is a schematic diagram showing the distribution of the cylinder seat according to the present invention.

[0012] 1. Air cooler body; 2. Fan; 3. Movable frame; 4. Cylinder seat; 5. Base; 51. Base plate; 6. Second drive motor; 7. Drive end; 8. Main travel wheel set; 9. Wheel axle; 10. First gear; 11. Second gear; 12. Auxiliary travel wheel; 13. Wheel seat; 14. Hinge rod; 15. Limiting plate; 16. Threaded block; 17. Two-way lead screw; 18. Base plate; 19. First drive motor; 20. Telescopic rod; 21. Locking plate; 22. Hinge shaft. Detailed Implementation

[0014] The present invention provides a cooling device for tunnel boring machines that is easy to assemble, which can solve the problems of existing cooling devices having unadjustable positions and being difficult to assemble or disassemble.

[0015] like Figures 1-4 As shown, the present invention provides a cooling device for a tunnel boring machine that is easy to assemble, comprising: an air cooler body 1, on which a fan 2 is mounted; a main traveling wheel assembly 8 installed at the bottom of the air cooler body 1 for the air cooler body 1 to travel along the axial direction of the tunnel boring machine inside the machine; and a locking mechanism installed on the outside of the air cooler body 1 for locking the air cooler body 1 at a specific traveling position inside the tunnel boring machine, the locking mechanism comprising a telescopic rod 20 fixed to the outside of the air cooler body 1 and capable of radial extension and retraction along the tunnel boring machine, and a locking plate 21 disposed at the telescopic end of the telescopic rod 20 and used to abut against the inner wall of the tunnel boring machine.

[0016] like Figure 1 , Figure 4 As shown, the locking plate 21 is an arc-shaped plate, and the curvature of the arc-shaped plate is adapted to the inner wall of the tunnel boring machine.

[0017] like Figure 3 As shown, it also includes at least two auxiliary traveling wheels 12 installed on the outside of the air cooler body 1. The auxiliary traveling wheels 12 can switch between an extended state and a retracted state. When in the extended state, the auxiliary traveling wheels 12 roll against the inner wall of the tunnel boring machine; when in the retracted state, the auxiliary traveling wheels 12 disengage from the inner wall of the tunnel boring machine.

[0018] like Figure 3At least two movable frames 3 are installed on the outside of the air cooler body 1. Each auxiliary walking wheel 12 is installed on the outside of the air cooler body 1 through one of the movable frames 3. Each movable frame 3 includes: a pair of limiting plates 15 fixed to the outside of the air cooler body 1; a bidirectional lead screw 17 rotatably passing through the pair of limiting plates 15; a first drive motor 19 fixed to the outside of the air cooler body 1, the drive end of the first drive motor 19 being coaxially fixed to one end of the bidirectional lead screw 17; and a pair of threaded blocks. 16, a pair of threaded blocks 16 are respectively screwed into two opposite threaded sections of the bidirectional lead screw 17, and the pair of threaded blocks 16 are both located between a pair of limiting plates 15; a pair of hinge rods 14, the first ends of the pair of hinge rods 14 are respectively hinged to the pair of threaded blocks 16; wheel seat 13, a hinge shaft 22 is fixedly passed through the wheel seat 13, the second ends of the pair of hinge rods 14 are both hinged to the hinge shaft 22, and the auxiliary walking wheel 12 is fixed to the side of the wheel seat 13 away from the air cooler body 1.

[0019] Preferably, in this embodiment, as Figure 3 As shown, a pair of limiting plates 15 are connected by a base plate 18.

[0020] By setting the movable frame 3, when it is necessary to move the air cooler body 1, the drive end of the first drive motor 19 can be rotated in the first direction, thereby causing a pair of threaded blocks 16 to move closer to each other under the drive of the bidirectional lead screw 17, thereby reducing the included angle between the two hinge rods 14. At the same time, the wheel seat 13 drives the auxiliary traveling wheel 12 to move away from the shield machine body until the auxiliary traveling wheel 12 is in the extended state and contacts the inner wall of the shield machine, ensuring that the air cooler body 1 can move along the axial direction of the shield machine. When the movable air cooler body 1 is locked, the drive end of the first drive motor 19 can be rotated in the second direction opposite to the first direction, thereby achieving the opposite effect and causing the auxiliary traveling wheel 12 to disengage from the inner wall of the shield machine. Preferably, the bidirectional lead screw 17 is arranged tangentially along the tunnel boring machine to drive the auxiliary traveling wheel 12 to move axially along the tunnel boring machine.

[0021] like Figure 2As shown, it also includes a base 5 installed at the bottom of the air cooler body 1. The base 5 includes: a base plate 51 fixed to the bottom of the air cooler body 1, the main travel wheel set 8 installed at the bottom of the base plate 23; a second drive motor 6 fixed to the bottom of the base plate 23, the drive end 7 of the second drive motor 6 being arranged in a vertical direction, and a first gear 10 being coaxially fixed at the end of the drive end 7; and a wheel axle 9 rotatably connected to the bottom of the base plate 51, the wheel axle 9 being arranged in a horizontal direction, the main travel wheel set 8 being fixedly passed through the wheel axle 9, and a second gear 11 being fixedly passed through the wheel axle 9. The second gear 11, the main travel wheel set 8, and the wheel axle 9 are all coaxially arranged, and the second gear 11 meshes with the first gear 10.

[0022] Preferably, in this embodiment, both the second gear 11 and the first gear 10 are bevel gears.

[0023] Preferably, in this embodiment, as Figure 2 As shown, the base plate 51 is convex, and the middle part of the base plate protrudes towards the side close to the air cooler body 1 to form a slot. The second drive motor 6 is installed in the slot, and the drive end 7 extends out of the slot.

[0024] In this example, when the air cooler body 1 needs to move, the drive end 7 of the second drive motor 6 rotates, which in turn drives the first gear 10 to rotate. The first gear 10 drives the second gear 11, which meshes with it, to rotate, which in turn drives the wheel axle 9 and the main travel wheel set 8 to rotate.

[0025] like Figure 1 , Figure 4 As shown, the telescopic rod 20 is a linear cylinder, which is installed on the air cooler body 1 through the cylinder seat 4. The locking plate 21 can be flexibly controlled through the linear cylinder. When it is necessary to lock the air cooler body 1, the telescopic end of the linear cylinder is extended, and the locking plate 21 can be tightly pressed against the inner wall of the tunnel boring machine to achieve the effect of locking. When it is necessary to lock, the telescopic end of the linear cylinder is retracted.

[0026] In this example, the linear cylinder extends and retracts radially along the tunnel boring machine.

[0027] Preferably, in this embodiment, if the telescopic rod 20 or the movable frame 3 conflicts with the structure or equipment inside the tunnel boring machine during the process of moving the air cooler body 1, the telescopic rod 20 or the movable frame 3 can be temporarily retracted to avoid conflict.

[0028] Preferably, the air cooler body 1 is in the shape of a polygonal prism, the fan 2 is disposed on the air cooler body 1 and is positioned facing the direction of travel of the air cooler body 1, and an opening is provided at the front of the air cooler body 1, through which the fan 2 communicates with the outside to ensure that the fan 2 can cool the equipment in front of the air cooler body 1; the movable frame 3 and the locking mechanism are evenly distributed on the side edges of the polygonal prism.

[0029] Better, such as Figure 1 , Figure 4 As shown, in this embodiment, the air cooler body 1 is an octagonal prism, and the base 5 is fixed on the side edge directly below the air cooler body 1. A total of six locking mechanisms are provided on the outside of the air cooler body 1. The six locking mechanisms are divided into two groups of three. The three locking mechanisms in each group are located on the top and side edges of the air cooler body 1, respectively. The three locking mechanisms and the base together form a cross support structure, which further enhances the overall stability. The number of locking mechanisms can be adjusted according to actual needs to enhance the stability of the air cooling device after locking. The four movable frames 3 are evenly distributed on the remaining four side edges of the air cooler body 1, and the four movable frames 3 are spaced apart between the three locking mechanisms and the base 5.

[0030] The present invention has the following beneficial effects: 1. By using the locking mechanism to hold the inner wall of the tunnel boring machine, the air cooler body 1 will be locked and cannot be moved. Since the tunnel boring machine will generate strong vibrations during the process of cutting the soil and advancing the shield shell, the locking mechanism will support and form a stable reaction force, so that the air cooler body 1 can remain stable under high-intensity vibration environment. When it needs to be removed, it can be directly contacted to lock the state.

[0031] 2. The main traveling wheels, auxiliary traveling wheels, and air cooler body 1 can be easily moved inside the tunnel boring machine. The position of air cooler body 1 can be flexibly adjusted so that it can be moved to the rear of the components that need to be cooled on the inner wall of the tunnel boring machine.

[0032] Finally, it should be noted that the above are merely preferred embodiments 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 foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cooling device for a tunnel boring machine that is easy to assemble, characterized in that, include: The air cooler body is equipped with a fan; a main traveling wheel assembly is installed at the bottom of the air cooler body for the air cooler body to travel along the axial direction of the tunnel boring machine inside the machine; a locking mechanism is installed on the outside of the air cooler body for locking the air cooler body at a specific traveling position inside the tunnel boring machine, the locking mechanism including a telescopic rod fixed to the outside of the air cooler body and capable of radial extension and retraction along the tunnel boring machine, and a locking plate provided at the telescopic end of the telescopic rod for abutting against the inner wall of the tunnel boring machine.

2. The easily assembled cooling device for tunnel boring machines as described in claim 1, characterized in that, The locking plate is an arc-shaped plate, and the curvature of the arc-shaped plate is adapted to the inner wall of the tunnel boring machine.

3. The easily assembled cooling device for tunnel boring machines as described in claim 1, characterized in that, It also includes at least two auxiliary traveling wheels installed on the outside of the air cooler body. The auxiliary traveling wheels can switch between an extended state and a retracted state. When in the extended state, the auxiliary traveling wheels roll against the inner wall of the tunnel boring machine; when in the retracted state, the auxiliary traveling wheels disengage from the inner wall of the tunnel boring machine.

4. The easily assembled cooling device for tunnel boring machines as described in claim 3, characterized in that, At least two movable frames are installed on the outside of the air cooler body. Each auxiliary walking wheel is installed on the outside of the air cooler body through one of the movable frames. Each movable frame includes: a pair of limiting plates fixed to the outside of the air cooler body; a bidirectional lead screw rotatably passing through the pair of limiting plates; a first drive motor fixed to the outside of the air cooler body, the drive end of the first drive motor being coaxially fixed to one end of the lead screw; a pair of threaded blocks, the pair of threaded blocks being respectively screwed to two opposite threaded sections of the bidirectional lead screw, and the pair of threaded blocks being located between the pair of limiting plates; a pair of hinge rods, the first ends of the pair of hinge rods being respectively hinged to the pair of threaded blocks; a wheel seat, on which a hinge shaft is fixedly passed, the second ends of the pair of hinge rods being hinged to the hinge shaft, and the auxiliary walking wheel being fixed to the side of the wheel seat away from the air cooler body.

5. The easily assembled cooling device for tunnel boring machines as described in claim 1, characterized in that, It also includes a base installed at the bottom of the air cooler body, the base comprising: a base plate fixed to the bottom of the air cooler body, the main travel wheel assembly being installed at the bottom of the base plate; a second drive motor fixed to the bottom of the base plate, the drive end of the second drive motor being arranged vertically, and a first gear being coaxially fixed at the end of the drive end; and a wheel axle rotatably connected to the bottom of the base plate, the wheel axle being arranged horizontally, the main travel wheel assembly being fixedly passed through the wheel axle, and a second gear being fixedly passed through the wheel axle, the second gear, the main travel wheel assembly, and the wheel axle being coaxially arranged, and the second gear meshing with the first gear.

6. The easily assembled cooling device for tunnel boring machines as described in claim 1, characterized in that, The telescopic rod is a linear cylinder.

Images