Replacing device of shield tunneling machine trolley walking wheel

Abstract

The utility model relates to the technical field of tunnel engineering, in particular to a replacing device of a shield tunneling machine trolley walking wheel, the shortest length of the replacing device is smaller than the distance from the bottom of a shield tunneling machine trolley to the inner wall of a tunnel when the shield tunneling machine trolley walks, and the longest length of the replacing device is larger than the distance from the bottom of the shield tunneling machine trolley to the inner wall of the tunnel when the shield tunneling machine trolley walks. The replacing device comprises an outer supporting arm, an inner supporting arm and a driving unit, the outer supporting arm is used for being installed at the bottom of a shield tunneling machine trolley, the inner supporting arm is installed in the outer supporting arm in a sliding mode, the bottom of the inner supporting arm is matched with the radian of the inner wall of a tunnel, and the driving unit is located in the inner supporting arm. The first end of the driving unit is fixed to the inner supporting arm, the second end of the driving unit is fixed to the outer supporting arm, and the driving unit drives the inner supporting arm to slide in the outer supporting arm. The replacing device solves the technical problems that in the prior art, a replacing device for the rubber coating wheel of the trolley is tedious in use process and low in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, and particularly relates to a replacement device for a traveling wheel of a shield machine trolley. Background Art

[0002] Affected by the actual structural form of the shield machine trolley and construction working conditions, etc., some of the trailing trolleys of the shield machine trolley usually need to use rubber-tyred wheels to travel on the inner wall of the tunnel to follow the shield machine trolley and continuously move forward, providing corresponding supporting mechanisms for the shield machine trolley. At present, the commonly used rubber-tyred wheels of the trolley have a complex structure design. When they are damaged, it is relatively difficult to disassemble and replace them. An independent replacement tooling needs to be additionally configured. Moreover, when replacing, it needs to be installed temporarily and then removed after the installation is completed, resulting in low replacement efficiency.

[0003] In summary, there is an urgent need for a replacement device that can improve the replacement efficiency of the rubber-tyred wheels of the trolley to solve the problems existing in the prior art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a replacement device for a traveling wheel of a shield machine trolley to solve the technical problem of the cumbersome and low-efficiency use of the replacement device for the rubber-tyred wheels of the trolley in the prior art. The specific technical solutions are as follows:

[0005] The utility model provides a replacement device for a traveling wheel of a shield machine trolley. The shortest length of the replacement device is less than the distance from the bottom of the shield machine trolley when it is traveling to the inner wall of the tunnel, and the longest length of the replacement device is greater than the distance from the bottom of the shield machine trolley when it is traveling to the inner wall of the tunnel. The replacement device includes an outer support arm, an inner support arm, and a driving unit. The outer support arm is used to be installed at the bottom of the shield machine trolley. The inner support arm is slidably installed inside the outer support arm. The bottom of the inner support arm is adapted to the radian of the inner wall of the tunnel. The driving unit is located inside the inner support arm. The first end of the driving unit is fixed to the inner support arm, and the second end of the driving unit is fixed to the outer support arm. The driving unit drives the inner support arm to slide inside the outer support arm.

[0006] A further improvement of the replacement device for the traveling wheel of the shield machine trolley of the utility model lies in that a concave platform for fixing the first end of the driving unit is provided inside the inner support arm.

[0007] A further improvement of the replacement device for the traveling wheel of the shield machine trolley of the utility model lies in that an outer limit seat extends outward from the bottom of the outer support arm, and an inner limit seat extends outward from the outer periphery of the inner support arm corresponding to the position of the concave platform. Threaded through holes are respectively provided in the inner limit seat and the outer limit seat.

[0008] A further improvement of the replacement device for the traveling wheel of the shield machine trolley of the utility model lies in that a pull plate is provided on the side of the inner support arm and below the inner limit seat, and a pull hole is provided on the pull plate.

[0009] A further improvement of the device for replacing the traveling wheels of the shield machine trolley of the utility model is that it also includes a support beam, a first end of which is fixed to the side of the outer support arm, and a second end of which is used to be fixed to the opposite support beam.

[0010] A further improvement of the device for replacing the traveling wheels of the shield machine trolley of the utility model is that it also comprises an inclined support, which is used to be fixed between the bottom of the shield machine trolley and the outer support arm.

[0011] A further improvement of the device for replacing the traveling wheels of the shield machine trolley of the utility model lies in that a supporting base for mounting the oblique support is provided on the side of the outer supporting arm.

[0012] A further improvement of the device for replacing the traveling wheels of the shield machine trolley of the utility model is that a supporting shoe plate is provided at the bottom of the inner supporting arm, and the curvature of the supporting shoe plate is adapted to the curvature of the inner wall of the tunnel.

[0013] A further improvement of the device for replacing the traveling wheels of the shield machine trolley of the utility model lies in that a wire passage opening for the pipeline of the driving unit to pass through is provided on the side surface of the outer supporting arm.

[0014] A further improvement of the device for replacing the traveling wheels of the shield machine trolley of the utility model lies in that a mounting seat for mounting on the bottom of the shield machine trolley is provided on the top of the outer support arm.

[0015] The application of the technical solution of the utility model has the following beneficial effects:

[0016] The replacement device of the shield machine trolley walking wheel of the utility model is directly installed at the bottom of the shield machine trolley and moves with the trolley during tunnel construction. When replacing the rubber-coated wheels of the trolley, the trolley is directly supported by extending the driving unit to separate the rubber-coated wheels of the trolley from the inner wall of the tunnel, thereby facilitating the replacement of the rubber-coated wheels. After the replacement is completed, the driving unit retracts and lowers the trolley, thereby completing the replacement of the rubber-coated wheels of the trolley. The technical problems of complicated and inefficient use of the rubber-coated wheel replacement device of the trolley in the prior art are solved, the situation of carrying the rubber-coated wheel replacement device separately and the operation of temporarily installing and disassembling the replacement device are avoided, the labor intensity when replacing the rubber-coated wheels is reduced, and the replacement efficiency is improved.

[0017] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a side view of the replacement device for the traveling wheels of the shield machine trolley installed on the shield machine trolley;

[0020] Figure 2 is a front view of the replacement device for the traveling wheels of the shield machine trolley when towing the feeding machine in the traveling state of the shield machine trolley;

[0021] Figure 3 is a front view of the replacement device for the traveling wheels of the shield machine trolley when jacking up the shield machine trolley in the maintenance state of the shield machine trolley;

[0022] Figure 4 is a perspective view of the replacement device for the traveling wheels of the shield machine trolley;

[0023] Figure 5 is a longitudinal sectional view of the replacement device for the traveling wheels of the shield machine trolley;

[0024] Figure 6 is an internal schematic view of the outer support arm of the replacement device for the traveling wheels of the shield machine trolley;

[0025] Figure 7 is an internal schematic view of the inner support arm of the replacement device for the traveling wheels of the shield machine trolley;

[0026] Figure 8 is a longitudinal sectional view of the replacement device for the traveling wheels of the shield machine trolley in the extended state;

[0027] Figure 9 is a schematic view of the replacement device for the traveling wheels of the shield machine trolley in the extended state when the shield machine trolley is in the maintenance state;

[0028] Figure 10 is a top view of the replacement device for the traveling wheels of the shield machine trolley when towing the feeding machine in the traveling state of the shield machine trolley;

[0029] Figure 11 is a top view of the replacement device for the traveling wheels of the shield machine trolley when jacking up the shield machine trolley in the maintenance state of the shield machine trolley.

[0030] Among them, 1. Outer support arm; 101. Fixed plate; 102. Upper concave platform; 103; Outer limit seat; 104. Support base; 105. Wire passing opening; 106. Inclined support; 2. Inner support arm; 201. Inner limit seat; 202. Lower concave platform; 203. Pulling plate; 204. Support shoe plate; 205. Support beam; 3. Driving unit; 4. Shield machine trolley; 5. Control unit; 6. Hydraulic pump station; 7. Rubber-coated wheel; 8. Towing assembly; 9. Feeding machine; 10. Tunnel; 11. Segment; A. Driving direction; H. Elongation distance set by the replacement device; △H. Set distance between the rubber-coated wheel and the tunnel wall after the replacement device extends. Detailed implementation mode

[0031] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0032] See Figures 1 to 11 As shown, a replacement device for the traveling wheels of a shield machine trolley, the shortest length of the replacement device is less than the distance from the bottom of the shield machine trolley 4 to the inner wall of the tunnel 10 when it travels, the longest length of the replacement device is greater than the distance from the bottom of the shield machine trolley 4 to the inner wall of the tunnel 10 when it travels, the replacement device includes an outer support arm 1, an inner support arm 2 and a driving unit 3, the outer support arm 1 is used to be installed at the bottom of the shield machine trolley 4, the inner support arm 2 is slidably installed inside the outer support arm 1, the bottom of the inner support arm 2 is adapted to the radian of the inner wall of the tunnel 10, the driving unit 3 is located inside the inner support arm 2, the first end of the driving unit 3 is fixed to the inner support arm 2, the second end of the driving unit 3 is fixed to the outer support arm 1, and the driving unit 3 drives the inner support arm 2 to slide inside the outer support arm 1.

[0033] Specifically, as Figure 5 and Figure 8 shown, the driving unit 3 can adopt a hydraulic cylinder. To ensure that the hydraulic oil pipe is relatively stationary with respect to the outer support arm 1, in this embodiment, the cylinder barrel end of the hydraulic cylinder is set as the upper end, and the piston end is set as the lower end, and they are detachably fixed to the outer support arm 1 and the inner support arm 2 respectively. As Figure 6 and Figure 7 shown, both the outer support arm 1 and the inner support arm 2 are hollow structures.

[0034] Preferably, as Figures 4 to 8 shown, the inner support arm 2 is internally provided with a lower concave platform 202 for fixing the first end of the driving unit 3. The lower concave platform 202 is provided with a plurality of threaded holes, and the piston end of the hydraulic cylinder can be fixed to the lower concave platform 202 by screwing bolts into the threaded holes.

[0035] Preferably, the bottom of the outer support arm 1 extends outward to form an outer limit seat 103, and the outer periphery of the inner support arm 2 extends outward to form an inner limit seat 201 corresponding to the position of the lower concave platform 202. Threaded through holes are respectively provided in the inner limit seat 201 and the outer limit seat 103. During the driving process of the shield machine trolley 4, the threaded through holes of the inner limit seat 201 and the outer limit seat 103 are screwed and fixed by bolts to prevent the inner support arm 2 and the outer support arm 1 from disengaging and affecting the driving safety. Wear-resistant layers are provided around the outer wall of the inner support arm 2 above the inner limit seat 201, and it is slidably matched with the hollow part of the outer support arm 1. The gap between the two sliding contact surfaces is set to 1-5 mm. After the driving unit 3 is installed, its extended set stroke is H. When it retracts to the set position, the inner limit seat 201 and the outer limit seat 103 just match and limit each other.

[0036] Preferably, as Figure 4 , Figure 5 and Figure 7 shown, a pull plate 203 is provided on the side of the inner support arm 2 and below the inner limit seat 201, and a pull hole is provided on the pull plate 203. Referring to Figure 10 , the tablet feeder 9 is arranged on the wall of the tunnel 10 below the shield body, and can be connected between the pull hole and the tablet feeder 9 through the dragging assembly 8. When the shield machine trolley 4 is normally tunneling, the replacement device drags the dragging assembly 8, and then drives the tablet feeder 9 to move forward together; referring to Figure 11 , when the shield machine trolley 4 needs to be overhauled or the rubber-coated wheel 7 needs to be replaced, it is necessary to stop the machine first, disconnect the connection between the dragging assembly 8 and the pull plate 203, and then perform the replacement and overhaul operations. The setting of the pull plate 203 enables no additional driving parts to be provided on the tablet feeder 9, saving costs. The tablet feeder 9 is used to transport the tunnel segments 11 from the end of the primary segment crane to the initial grasping position of the segment assembling machine. At least one haunch plate is fixed between the pull plate 203 and the inner support arm 2 to improve the stability and strength of the pull plate 203.

[0037] Preferably, as Figure 3 , Figure 9 and Figure 11 shown, the first end of the support beam 205 is fixed to the side of the outer support arm 1, and the second end of the support beam 205 is used to be fixed to the opposite support beam 205. When the replacement device of the present invention is under construction, two groups of replacement devices are installed at the bottom of the shield machine trolley 4. The two groups of replacement devices are respectively located on both sides of the shield machine trolley 4, and each group contains multiple replacement devices. The replacement devices in the two groups are arranged corresponding to each other. When the shield machine trolley 4 needs to be overhauled or the rubber-coated wheel 7 needs to be replaced, the support beams 205 of the two opposite replacement devices are connected by bolts to jointly limit and reinforce the inner support arms 2 of the two groups of replacement devices that are symmetric left and right.

[0038] Preferably, as Figure 4As shown, it further includes an inclined support 106, which is used to be fixed between the bottom of the shield machine trolley 4 and the outer support arm 1. In this embodiment, both the outer support arm 1 and the inner support arm 2 are square columns. Three inclined supports 106 are fixed on each outer support arm 1. Except for the side far from the center of the shield machine trolley 4 where no inclined support 106 is provided, the inclined supports 106 can be detachably fixed on the other three sides. Both the inclined support 106 and the support beam 205 are made of section steel, and fixing plates 101 are fixed at both ends of the section steel. A plurality of threaded through holes are provided on the fixing plates 101, and the two ends of the inclined support 106 and the support beam 205 are connected by bolts.

[0039] Preferably, as Figure 6 shown, a support base 104 for installing the inclined support 106 is provided on the side surface of the outer support arm 1. A plurality of threaded holes corresponding to the threaded through holes on the fixing plate 101 are provided on the support base 104 for realizing the bolt connection of the inclined support 106. A connection base for installing the support beam 205 is provided at a position on the inner support arm 2 close to the center of the shield machine trolley 4, and a threaded hole for connecting the support beam 205 is provided on the connection base.

[0040] Preferably, as Figure 7 shown, a support shoe plate 204 is provided at the bottom of the inner support arm 2, and the radian of the support shoe plate 204 is adapted to the radian of the inner wall of the tunnel 10. The support shoe plate 204 is fixed at an inclined shape at the bottom of the inner support, and its area is larger than the area of the inclined section of the inner support, so as to increase the contact area between the inner support arm 2 and the inner wall of the tunnel 10, and improve the stability of the support of the replacement device during maintenance or replacement of accessories.

[0041] Preferably, as Figure 6 shown, a wire passing port 105 for the pipeline of the driving unit 3 to pass through is provided on the side surface of the outer support arm 1. In this embodiment, wire passing ports 105 are provided on both sides of the outer support arm 1 (corresponding to the support bases 104 on the opposite side), the number of the wire passing ports 105 is two, and the wire passing ports 105 are used for the pipeline to pass through and there is no relative movement therewith, that is, the pipeline of the driving unit 3 remains relatively stationary with the outer support arm 1.

[0042] Preferably, an installation seat for installing on the bottom of the shield machine trolley 4 is provided at the top of the outer support arm 1. The area of the installation seat is larger than the cross-sectional area of the outer support arm 1. A plurality of threaded through holes are provided at the position where the installation seat extends out of the outer support arm 1 for bolt connection to the bottom of the shield machine trolley 4. An upper concave platform 102 is provided in the middle of the installation seat, and a week of threaded through holes are arranged along the central axis on the upper concave platform 102, which is convenient for installing one end of the driving unit 3.

[0043] As Figure 1 shown, a control unit 5 is provided on the shield machine trolley 4, and the driving unit 3 of the replacement device is controlled by the control unit 5 to drive the hydraulic pump station 6. AsFigure 3 and Figure 11 As shown, when it is necessary to inspect or replace the running wheel, disconnect the connection between the towing assembly 8 and the pull plate 203, remove the connecting bolts between the inner limit seat 201 and the outer limit seat 103, and install the upper support beam 205 (check that the other systems and components are normal), and then start the hydraulic pump station 6 by the control system to synchronously drive the drive units 3 in all replacement devices to extend the inner support arm 2 times the length H together to ensure that all support shoe plates 204 are fully matched on the inner wall of the tunnel 10, and lift the entire section of the shield machine trolley 4 to the set distance, so that all rubber-coated wheels 7 are suspended after being △H away from the inner wall of the tunnel 10, and all replacement devices are synchronously interlocked (to avoid misoperation and ensure safety);

[0044] When all replacement devices are interlocked, the operator inspects and replaces the rubber-covered wheel 7 according to the actual situation;

[0045] like Figure 2 and Figure 10 As shown, after the maintenance is completed, the interlock is released (check that the other systems and components are normal), and the control system starts the hydraulic pump station 6 again, synchronously drives the drive units 3 in all replacement devices, and synchronously and slowly retracts the inner support arm 2H length to ensure that all inner / outer limit seats 103 are matched, so that all rubber-coated wheels 7 are fully matched with the tunnel 10 wall, install the bolts between the inner limit seat 201 and the outer limit seat 103, then remove the support beam 205, and finally tighten the connection between the towing assembly 8 and the pull plate 203, and start the shield machine to dig normally along the excavation direction A.

[0046] The replacement device of the shield machine trolley walking wheel of the utility model is directly installed at the bottom of the shield machine trolley 4, and moves with the trolley during the construction of the tunnel 10. When replacing the rubber-coated wheels 7 of the trolley, the trolley is directly supported by extending the driving unit 3 to make the rubber-coated wheels 7 of the trolley separate from the inner wall of the tunnel 10, so as to facilitate the replacement of the rubber-coated wheels 7. After the replacement is completed, the driving unit 3 retracts and lowers the trolley, and the replacement of the rubber-coated wheels 7 of the trolley is completed. The technical problem of cumbersome and low efficiency in the use process of the replacement device of the rubber-coated wheels 7 of the trolley in the prior art is solved, the situation of carrying the rubber-coated wheel 7 replacement device separately, and the operation of temporarily installing and disassembling the replacement device are avoided, the labor intensity when replacing the rubber-coated wheels 7 is reduced, and the replacement efficiency is improved.

[0047] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A replacement device for the traveling wheels of a shield machine trolley, characterized in that, The shortest length of the replacement device is less than the distance from the bottom of the shield machine trolley (4) to the inner wall of the tunnel (10) when it moves, and the longest length of the replacement device is greater than the distance from the bottom of the shield machine trolley (4) to the inner wall of the tunnel (10) when it moves. The replacement device includes an outer support arm (1), an inner support arm (2) and a driving unit (3). The outer support arm (1) is used to be installed at the bottom of the shield machine trolley (4). The inner support arm (2) is slidably installed inside the outer support arm (1). The bottom of the inner support arm (2) is adapted to the radian of the inner wall of the tunnel (10). The driving unit (3) is located inside the inner support arm (2). The first end of the driving unit (3) is fixed to the inner support arm (2), and the second end of the driving unit (3) is fixed to the outer support arm (1). The driving unit (3) drives the inner support arm (2) to slide inside the outer support arm (1).

2. The replacement device for the traveling wheel of the shield machine trolley according to claim 1, wherein A concave platform (202) for fixing the first end of the driving unit (3) is provided inside the inner support arm (2).

3. The replacement device for the traveling wheels of the shield machine trolley according to claim 2, characterized in that, An outer limit seat (103) extends outward from the bottom of the outer support arm (1). An inner limit seat (201) extends outward from the outer periphery of the inner support arm (2) at a position corresponding to the concave platform (202). Threaded through holes are respectively provided in the inner limit seat (201) and the outer limit seat (103).

4. The replacement device for the traveling wheels of the shield machine trolley according to claim 3, characterized in that, A pull plate (203) is provided on the side of the inner support arm (2) and below the inner limit seat (201). A pull hole is provided on the pull plate (203).

5. The replacement device for the traveling wheels of the shield machine trolley according to claim 1, characterized in that, It further includes a support beam (205). The first end of the support beam (205) is fixed to the side of the outer support arm (1), and the second end of the support beam (205) is used to be fixed to the opposite support beam (205).

6. The replacement device for the traveling wheels of the shield machine trolley according to claim 1, characterized in that, It further includes an inclined support (106). The inclined support (106) is used to be fixed between the bottom of the shield machine trolley (4) and the outer support arm (1).

7. The replacement device for the traveling wheels of the shield machine trolley according to claim 6, characterized in that, A support base (104) for installing the inclined support (106) is provided on the side of the outer support arm (1).

8. The replacement device for the traveling wheels of the shield machine trolley according to claim 1, characterized in that A support shoe plate (204) is provided at the bottom of the inner support arm (2). The radian of the support shoe plate (204) is adapted to the radian of the inner wall of the tunnel (10).

9. The replacement device for the traveling wheels of the shield machine trolley according to claim 1, characterized in that, A wire passing port (105) for the pipeline of the driving unit (3) to pass through is provided on the side of the outer support arm (1).

10. The replacement device for the traveling wheel of the shield machine trolley according to claim 1, characterized in that, An installation seat for installing on the bottom of the shield machine trolley (4) is provided at the top of the outer support arm (1).

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