TBM gripper shoe lifting device in tunnel

Abstract

The utility model discloses a TBM (Tunnel Boring Machine) gripper shoe hoisting device in a tunnel, which solves the problems of poor adaptability, more working procedures, long consumed time and low efficiency when an anchor rod hoisting point is used for hoisting a gripper shoe in the tunnel in the prior art. The utility model discloses a TBM (Tunnel Boring Machine) gripper shoe lifting device in a tunnel. The TBM gripper shoe lifting device comprises an upper support frame, a lifting connecting piece, a direction adjusting connecting piece and a fixed fulcrum piece, wherein the lifting connecting piece and the direction adjusting connecting piece are arranged on a gripper shoe; a lifting power piece is arranged between the upper supporting frame and the lifting connecting piece, and a direction adjusting power piece is arranged between the direction adjusting connecting piece and the fixed fulcrum piece. The TBM gripper shoe lifting device in the tunnel solves the problems that in the prior art, when an anchor rod lifting point is depended on, the working procedures are complicated, the adaptability to surrounding rock is poor, and the lifting efficiency is low. Therefore, on the basis of ensuring the safety and the operation convenience of tunnel construction, the lifting time of the supporting shoe is greatly reduced, the maintenance efficiency of equipment is greatly improved, the construction cost is reduced, and the construction progress is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to TBM technical field, especially a kind of TBM prop shoe hoisting device. BACKGROUND

[0002] TBM prop shoe is the key component of providing reaction force in the process of excavation, once prop shoe fails in hole, TBM cannot excavate, and at this time, prop shoe needs to be disassembled and repaired, and hoisting of prop shoe is involved in the process of repair. Prop shoe is generally heavy, and its hoisting often uses traditional lifting equipment such as crane and gantry crane, but the space in hole is narrow, and traditional lifting equipment cannot be used.

[0003] For the hoisting of prop shoe in hole, the method of setting anchor rod on hole wall is currently used, as recorded in the document "Large-diameter main beam type TBM prop shoe cylinder hole replacement technology" journal (Railway Construction Technology, No. 6, 2016), which needs to arrange mortar anchor rod lifting point above prop shoe cylinder first, then carry out pull-out test after mortar reaches age, and finally hoist prop shoe after test meets requirements. The method of anchor rod lifting point has problems of many procedures, long time consumption and low efficiency, and when surrounding rock is broken, lifting point cannot meet the strength requirement of hoisting. Therefore, it is necessary to design a non-anchor rod hoisting device and hoisting method. SUMMARY

[0004] In view of the deficiencies in the above background art, the utility model provides a tunnel TBM prop shoe hoisting device, which solves the problems of poor adaptability, many procedures, long time consumption and low efficiency in the prior art of hoisting prop shoe in tunnel using anchor rod lifting point.

[0005] The technical scheme of the utility model is implemented as follows: a tunnel TBM prop shoe hoisting device, comprising upper support frame, hoisting connecting piece and direction adjusting connecting piece arranged on prop shoe, and fixed fulcrum piece arranged on hole wall; hoisting dynamic piece is arranged between upper support frame and hoisting connecting piece, and direction adjusting dynamic piece is arranged between direction adjusting connecting piece and fixed fulcrum piece. Hoisting dynamic piece provides main power for hoisting prop shoe, and direction adjusting dynamic piece is used for adjusting the direction of hoisted prop shoe, facilitating disassembly and assembly.

[0006] Further preferably, the upper support frame is arranged on TBM main beam, and the upper support frame is in contact with hole wall to provide side support for the upper support frame. TBM main beam provides main support for the upper support frame, and cooperates with hole wall to ensure the stability of the upper support frame, so as to provide stable support for the hoisting device.

[0007] Further preferably, the upper support frame comprises a front sub-support frame and a rear sub-support frame, and the front and rear sub-support frames are connected by a connecting beam frame. The front and rear sub-support frames are arranged on the TBM main beam along the tunnel axis, thereby increasing the span and forming a stable three-dimensional support body through the connecting beam frame, ensuring the stability of the upper support frame itself and meeting the lifting requirements of the support shoe.

[0008] Further preferably, the front and rear sub-support frames each comprise a main horizontal beam and a main vertical beam, and the main horizontal beam and the main vertical beam are arranged in a T shape; the lower part of the main horizontal beam is provided with a short support rod matched with the top of the TBM main beam, the front end of the lower part of the main horizontal beam is provided with a side inclined support matched with the side wall of the TBM main beam, and the upper part of the main horizontal beam is provided with a cable-stayed rod between the main horizontal beam and the main vertical beam.

[0009] Further preferably, the cable-stayed rod comprises a first cable-stayed rod and a second cable-stayed rod, and the side of the main horizontal beam close to the main vertical beam is provided with a front inclined support rod. The cable-stayed rod forms a triangular structure between the main horizontal beam and the main vertical beam, thereby improving the stability and bearing capacity thereof, and the short support rod cooperates with the front inclined support rod to further improve the stability of the support frame.

[0010] Further preferably, one end of the main horizontal beam close to the tunnel wall is provided with an arc surface support block matched with the tunnel wall, and the main horizontal beam is provided with an end lifting lug. The arc surface support block is attached to the tunnel wall to prevent shaking and improve the stability of the support frame, and the end lifting lug improves the lifting point support of the lifting power element.

[0011] Further preferably, the main horizontal beam, the main vertical beam, the side inclined support and the short support rod are all telescopic rods; the telescopic rod comprises an outer sleeve and an inner sleeve rod, and the inner sleeve rod is connected to the outer sleeve by a pin shaft or a thread. The design of the telescopic rod enables the upper support frame to be attached to the TBM main beam and the tunnel wall, thereby improving the stability and adaptability of the device to different diameters of the tunnel wall.

[0012] Further preferably, the end lifting lug on the main horizontal beam of the front sub-support frame is a first end lifting lug, and the end lifting lug on the main horizontal beam of the rear sub-support frame is a second end lifting lug. Further preferably, the lifting connecting element is a front lifting lug and a rear lifting lug arranged at the top end of the support shoe, and the orientation connecting element is a left orientation lug seat arranged on the left end face of the support shoe and a right orientation lug seat arranged on the right end face of the support shoe. The first end lifting lug corresponds to the front lifting lug, and the second end lifting lug corresponds to the rear lifting lug, and the lifting power element provides lifting power. The fixed fulcrum element comprises a left fixed lifting lug and a right fixed lifting lug, and the left fixed lifting lug corresponds to the left orientation lug seat, and the right fixed lifting lug corresponds to the right orientation lug seat. The orientation power element provides attitude adjustment power for the lifting support shoe.

[0013] Further preferably, the lifting power element is a hand-operated hoist or an electric hoist, and the orientation power element is a hand-operated hoist or an electric hoist.

[0014] The utility model discloses a beneficial effect is: in the utility model's support boot hoist device, utilize equipment girder as the support boot hoist device's bearing base, through steel support frame directly transmits the hoisting load to the main girder, avoided the uncertainty of traditional anchor rod hoisting point relying on the surrounding rock bearing, eliminated the influence of surrounding rock condition to hoisting safety. Steel support frame support compares the anchor rod hoisting point and needs the complex process such as drilling, grouting, consolidation, greatly reduces construction preparation time, and can fast installation and disassembly. In addition, the utility model new upper support frame length and height can be telescopic adjustment, to adapt to the hoisting operation of different hole diameter. The utility model through the synergistic effect of chain hoist, can realize the accurate movement of support boot in the narrow space in the hole in multiple degrees of freedom, and the chain hoist provides vertical lifting power, and is mainly used for vertical hoisting. The chain hoist adjusts the horizontal position of support boot, to avoid the collision of support boot with the hole wall in the process of lifting.

[0015] Compared with the prior art, the utility model discloses tunnel inner TBM support boot hoist device, solved the process negative miscellaneous of existing technology when relying on anchor rod hoisting point, and the problem of poor surrounding rock adaptability, low hoisting efficiency. Therefore, the utility model guarantees the tunnel construction safety and the operation convenience on the basis, makes support boot hoisting time greatly reduce, greatly improves the equipment maintenance efficiency, reduces the construction cost, and guarantees the construction progress. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the utility model embodiment, the following will be needed to use the drawings in the embodiment description briefly introduced, obviously, the following description in the drawings only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 It is the front view of the utility model support boot hoist device;

[0018] Figure 2 It is the front view of the upper support frame;

[0019] Figure 3 It is the telescopic structure diagram of the telescopic length of the upper support frame;

[0020] Figure 4 It is the vertical lifting state schematic drawing of support boot;

[0021] Figure 5 It is the horizontal direction adjustment state schematic drawing of support boot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] As shown in Figure 1 Embodiment 1, a tunnel TBM support shoe hoisting device, comprising an upper support frame 1, a hoisting connecting piece 6 and a direction adjusting connecting piece 7 arranged on the support shoe 8 and a fixed fulcrum piece 4 arranged on the tunnel wall. The upper support frame 1 is the main hoisting support component of the whole hoisting device, the hoisting connecting piece 6 and the direction adjusting connecting piece 7 are the hoisting connecting points on the support shoe, used for connecting the hoisting power piece and the direction adjusting power piece. The hoisting connecting piece 6 and the direction adjusting connecting piece 7 are arranged between the upper support frame 1 and the hoisting connecting piece 6, and the hoisting power piece 2 is arranged between the hoisting connecting piece 6 and the direction adjusting connecting piece 7. The hoisting power piece provides power for the hoisting of the support shoe. The direction adjusting power piece 5 is arranged between the direction adjusting connecting piece 7 and the fixed fulcrum piece 4. The direction adjusting power piece 5 provides the direction adjusting power for the hoisting of the support shoe, and is used for adjusting the pose of the support shoe. In the embodiment, the hoisting power piece 2 is a hand-operated hoist or an electric hoist, and the direction adjusting power piece 5 is a hand-operated hoist or an electric hoist. The hoisting power piece realizes the up-down movement of the support shoe in the vertical direction through the hoisting connecting piece 6 on the support shoe. The direction adjusting power piece realizes the left-right movement of the support shoe in the horizontal direction through the direction adjusting connecting piece on the support shoe, and solves the problems of poor adaptability, many procedures, long time consumption and low efficiency in the prior art when the support shoe is hoisted by using the anchor rod hoisting point in the tunnel.

[0024] According to the hoisting device of the utility model, the hoisting of the support shoe can be realized in the tunnel, especially in the case that the anchor rod hoisting point cannot be set due to the broken surrounding rock. By arranging the hoisting device on the equipment girder, the hoisting operation efficiency of the support shoe can be greatly improved, and the safety of the on-site operation can be improved. The rapid hoisting and repair of the support shoe can also indirectly reduce the construction cost and ensure the overall progress of the tunnel project.

[0025] As shown in Figure 2 Embodiment 2, a tunnel TBM support shoe hoisting device, based on embodiment 1, in the embodiment, the upper support frame 1 is arranged on the TBM girder 9, and the upper support frame 1 is in contact with the tunnel wall to provide side support for the upper support frame 1. The upper support frame can be a steel support frame, and then the equipment girder is used as the force bearing basis of the support shoe hoisting device. The hoisting load is directly transmitted to the girder through the steel support frame, avoiding the uncertainty of the traditional anchor rod hoisting point relying on the surrounding rock bearing, and eliminating the influence of the surrounding rock condition on the hoisting safety. In addition, the side of the upper support frame is in contact with the tunnel wall, ensuring the stability of the upper support frame, and at the same time, the upper support frame transmits part of the force to the tunnel wall during the hoisting of the support shoe, reducing the stress on the upper support frame and improving the safety of the upper support frame.

[0026] The upper support frame 1 in the embodiment comprises a front sub-support frame and a rear sub-support frame, and the two sub-support frames are connected by a connecting beam frame 120. The front sub-support frame and the rear sub-support frame are arranged on the TBM main beam along the tunnel axis, thereby increasing the span and forming a stable three-dimensional support body through the connecting beam frame, ensuring the stability of the upper support frame itself and meeting the lifting requirements of the support shoe. Specifically, the two sub-support frames each comprise a main horizontal beam 17 and a main vertical beam 11, and the main horizontal beam 17 and the main vertical beam 11 are arranged in a T-shaped welding manner; the lower part of the main horizontal beam 17 is provided with a short support rod 13 matched with the top of the TBM main beam 9; the main vertical beam 11 and the short support rod 13 can be connected to the TBM main beam by welding; the lower front end of the main horizontal beam 17 is provided with a side inclined support 14 matched with the side wall of the TBM main beam 9, and the side inclined support can also be connected to the side wall of the TBM main beam by welding; and a diagonal rod is arranged between the upper part of the main horizontal beam 17 and the main vertical beam 11. As a preferred option, the diagonal rod comprises a first diagonal rod 18 and a second diagonal rod 19, and the side of the main horizontal beam 17 close to the main vertical beam 11 is provided with a front inclined support rod 12. The diagonal rod forms a triangular structure between the main horizontal beam and the main vertical beam, thereby improving the stability and bearing capacity thereof, and the short support rod cooperates with the front inclined support rod to further improve the stability of the support frame. It should be noted that the structural members of the steel support frame can be connected by welding or by bolts.

[0027] In the embodiment, one end of the main horizontal beam 17 close to the tunnel wall is provided with an arc surface support block 16 matched with the tunnel wall, and the end part of the main horizontal beam 17 is provided with an end lifting lug 15. The arc surface support block is attached to the tunnel wall to prevent shaking and improve the stability of the support frame, and the end lifting lug improves the support of the lifting point as a lifting power member. The steel support is connected by welding, which greatly reduces the construction preparation time compared with the complex procedures such as drilling, grouting and consolidation required for anchor lifting points, and can be quickly installed and disassembled.

[0028] In embodiment 3, a TBM support shoe lifting device in a tunnel, based on embodiments 1 or 2, the main horizontal beam 17, the main vertical beam 11, the side inclined support 14 and the short support rod are all telescopic rods, which can realize the lifting of the support shoe in different hole diameters. In the embodiment, the telescopic rod comprises an outer sleeve 101 and an inner sleeve rod 103, and the inner sleeve rod 103 is connected to the outer sleeve 101 by a pin shaft 102 or a thread. As shown in Figure 3 when the pin shaft is used, a plurality of positioning holes are formed in the outer sleeve, and a group of positioning holes are formed in the inner sleeve rod 103, and the extension length is adjusted by the cooperation of the positioning holes in the inner sleeve rod and the positioning holes in the outer sleeve and the locking of the pin shaft. When the thread is used, an external thread is formed on the inner sleeve rod, and an internal thread is formed on the outer sleeve, and the extension length of the inner sleeve rod is adjusted by the cooperation of the internal and external threads.

[0029] The end lifting lug 15 located on the main cross beam 17 of the front sub support frame is a first end lifting lug 151, and the end lifting lug 15 located on the main cross beam 17 of the rear sub support frame is a second end lifting lug 152. The lifting connecting piece 6 is a front lifting lug 61 and a rear lifting lug 62 arranged at the top end of the support shoe 8; the first end lifting lug 151 corresponds to the front lifting lug 61, and the second end lifting lug 152 corresponds to the rear lifting lug 62. In the embodiment, the lifting power piece 2 includes a first hand-operated hoist 21 and a second hand-operated hoist 22; one end of the first hand-operated hoist 21 is hung at the first end lifting lug 151, and the other end is connected with the front lifting lug 61; one end of the second hand-operated hoist 22 is hung at the second end lifting lug 152, and the other end is connected with the rear lifting lug 62; the support shoe is moved up and down in the vertical direction, and is mainly used for lifting the support shoe in the vertical direction.

[0030] In the embodiment, the direction adjusting connecting piece 7 is a left direction adjusting lug seat 71 arranged on the left end face of the support shoe 8 and a right direction adjusting lug seat 72 arranged on the right end face of the support shoe 8. The fixed support point piece 4 includes a left fixed lifting lug 41 and a right fixed lifting lug 42; the left fixed lifting lug 41 corresponds to the left direction adjusting lug seat 71, and the right fixed lifting lug 42 corresponds to the right direction adjusting lug seat 72. In the embodiment, the direction adjusting power piece 5 includes a hand-operated hoist A 51 and a hand-operated hoist B 52; one end of the hand-operated hoist A 51 is hung at the left fixed lifting lug 41, and the other end is connected with the left direction adjusting lug seat 71; one end of the hand-operated hoist B 52 is hung at the right fixed lifting lug 42, and the other end is connected with the right direction adjusting lug seat 72; the support shoe is moved left and right in the horizontal direction; and collision between the support shoe and the hole wall during lifting of the support shoe is avoided.

[0031] The support shoe lifting device is used for lifting the support shoe, and mainly includes the following steps:

[0032] (1) Upper support frame fixing: according to the positioning points, the main vertical beam 11 and the short support rod 13 are fixed with the TBM main beam 9 by welding, then the main cross beam 17 is welded and fixed with the main vertical beam 11 and the short support rod 13, then the front inclined support rod 12, the side inclined support rod 14, the first pull rod 18 and the second pull rod 19 are welded and fixed, and finally the end lifting lug 15 and the end lifting lug reinforcing plate are welded and fixed on the main cross beam 17.

[0033] (2) Power piece suspension connection: one end of the first hand-operated hoist 21 is hung at the first end lifting lug 151, and the other end is connected with the front lifting lug 61; one end of the second hand-operated hoist 22 is hung at the second end lifting lug 152, and the other end is connected with the rear lifting lug 62. As shown in Figure 4

[0034] One end of the hand-operated hoist A 51 is hung at the left fixed lifting lug 41, and the other end is connected with the left direction adjusting lug seat 71; one end of the hand-operated hoist B 52 is hung at the right fixed lifting lug 42, and the other end is connected with the right direction adjusting lug seat 72. As shown in Figure 5 .​

[0035] (4) Vertical lifting of the support shoe: the personnel slowly and uniformly lift the support shoe 8 by tightening the chain 211 of the first chain hoist and the chain 221 of the second chain hoist, and the lifting speed is less than 0.5 m / min.

[0036] (5) Horizontal adjustment of the support shoe: when the support shoe 8 deviates to the left, the personnel tighten the chain 521 on the chain hoist B52 to make the support shoe 8 return to the right; similarly, when the support shoe 8 deviates to the right, the personnel tighten the chain 511 on the chain hoist A51 to make the support shoe 8 return to the left. During the adjustment, the chain hoist is kept in a slightly tensioned state to prevent the support shoe from shaking.

[0037] (6) Installation of the support shoe: repeat steps (4) and (5) until the support shoe 8 reaches the target position, and then connect and install the support shoe 8 with the support shoe oil cylinder 3.

[0038] (7) Disassembly of the device: after the support shoe 8 is installed, disassemble the first chain hoist 21, the second chain hoist 22, the chain hoist A51 and the chain hoist B52, and separate the upper support frame 1 from the TBM main beam 9; to realize the reuse of the support shoe lifting device.

[0039] Compared with the prior art, the tunnel TBM support shoe lifting device and hoisting method solve the problems of process interference, poor surrounding rock adaptability and low hoisting efficiency in the prior art when relying on the anchor rod lifting point. Therefore, the present application greatly reduces the hoisting time of the support shoe, greatly improves the maintenance efficiency of the equipment, reduces the construction cost, and ensures the construction progress on the basis of ensuring the safety and convenience of tunnel construction.

[0040] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A TBM shield lifting device within a tunnel, characterized by: The utility model relates to a tunnel roof support device, including upper support frame (1), set up on the support shoe (8) hoist connecting piece (6) and adjust the direction connecting piece (7) and set up on the hole wall fixed fulcrum piece (4), be equipped with hoist power element (2) between upper support frame (1) and hoist connecting piece (6), be equipped with adjust the direction power element (5) between the direction connecting piece (7) and fixed fulcrum piece (4).

2. The in-tunnel TBM shore shoe lifting device of claim 1, wherein: The upper support frame (1) is arranged on the TBM main beam (9), and the upper support frame (1) is in contact with the hole wall to provide side support for the upper support frame (1).

3. A TBM shoe lifting device within a tunnel as claimed in claim 1 or 2, characterised in that: The upper support frame (1) comprises a front sub-support frame and a rear sub-support frame, and the front and rear sub-support frames are connected through a connecting beam frame (120).

4. The in-tunnel TBM shoe lifting device of claim 3, wherein: The front and rear sub-support frames each comprise a main horizontal beam (17) and a main vertical beam (11), and the main horizontal beam (17) and the main vertical beam (11) are arranged in a T shape; the lower part of the main horizontal beam (17) is provided with a short support rod (13) matched with the top of the TBM main beam (9), the lower front end of the main horizontal beam (17) is provided with a side inclined support (14) matched with the side wall of the TBM main beam (9), and the upper part of the main horizontal beam (17) is provided with an inclined pull rod between the main horizontal beam (17) and the main vertical beam (11).

5. The in-tunnel TBM shore shoe lifting device of claim 4, wherein: The inclined pull rod comprises a first inclined pull rod (18) and a second inclined pull rod (19), and the side of the main horizontal beam (17) close to the main vertical beam (11) is provided with a front inclined support rod (12).

6. The in-tunnel TBM shore shoe lifting device of claim 5, wherein: The end of the main horizontal beam (17) close to the hole wall is provided with an arc surface support block (16) matched with the hole wall, and the main horizontal beam (17) is provided with an end lifting lug (15).

7. A TBM shoe lifting device within a tunnel as claimed in claim 5 or 6, characterised in that: The main horizontal beam (17), the main vertical beam (11), the side inclined support (14), and the short support rod are all telescopic rods; the telescopic rod comprises an outer sleeve (101) and an inner sleeve rod (103), and the inner sleeve rod (103) is connected with the outer sleeve (101) through a pin shaft (102) or a thread.

8. The in-tunnel TBM shoe lifting device of claim 6, wherein: The end lifting lug (15) on the main horizontal beam (17) of the front sub-support frame is a first end lifting lug (151), and the end lifting lug (15) on the main horizontal beam (17) of the rear sub-support frame is a second end lifting lug (152); the hoist connecting piece (6) is a front lifting lug (61) and a rear lifting lug (62) arranged at the top end of the support shoe (8); the first end lifting lug (151) corresponds to the front lifting lug (61), and the second end lifting lug (152) corresponds to the rear lifting lug (62).

9. The TBM shoe lifting device within a tunnel of claim 1 or 8, wherein: The direction connecting piece (7) is a left direction lug seat (71) arranged on the left end face of the support shoe (8) and a right direction lug seat (72) arranged on the right end face of the support shoe (8); the fixed fulcrum piece (4) comprises a left fixed lifting lug (41) and a right fixed lifting lug (42), the left fixed lifting lug (41) corresponds to the left direction lug seat (71), and the right fixed lifting lug (42) corresponds to the right direction lug seat (72).

10. The in-tunnel TBM shoe lifting device of claim 9, wherein: The hoist power element (2) is a hand-operated hoist or an electric hoist, and the direction power element (5) is a hand-operated hoist or an electric hoist.

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