Gradient-adaptive foldable TBM operation beam

Abstract

The present application relates to the technical field of engineering machinery tunneling machine, and particularly relates to a slope-adaptive foldable TBM (Tunnel Boring Machine) cutter beam. The cutter beam mechanism, the adjusting mechanism and the hoisting mechanism are arranged in the main body of the tunneling machine. The cutter beam mechanism comprises a first cutter beam, a second cutter beam movably connected to the first cutter beam, and the second cutter beam is capable of telescopic movement along the extension direction of the first cutter beam. The first cutter beam and the second cutter beam are connected to the main body of the tunneling machine through the adjusting mechanism, and the adjusting mechanism is capable of adjusting the inclination angle of the cutter beam according to the posture of the tunneling machine, so as to maintain the cutter beam in a horizontal state. The hoisting mechanism is slidably connected to the cutter beam mechanism, is used for hoisting the cutter, and is capable of driving the cutter to slide on the cutter beam. The slope-adaptive foldable TBM cutter beam provided by the present application optimizes the cutter beam mechanism between the main beam and the cutter disc body, so that the cutter beam has the angle adjusting function, and the problems of the hoisting structure sliding and the collision of personnel when passing through the tunneling machine at an inclination angle are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering mechanical tunneling machine, and particularly relates to a slope-adaptive foldable TBM tool carrier. BACKGROUND

[0002] TBM, full name Tunnel Boring Machine, is a tunneling machine. TBM integrates functions such as rock breaking, slagging, slagging, and supporting. TBM tool replacement and tool transportation, as one of the key processes, directly affects the construction efficiency of TBM. With the expansion of the application field of TBM, the tunnel line is becoming more and more complex, and the construction process needs to be excavated in the attitude of horizontal, large longitudinal slope uphill and large longitudinal slope downhill. The traditional TBM tool transportation system design cannot cope with different slope excavation attitudes from the main beam to the inside of the cutter head. The manhole on the main beam serves both personnel passage and tool transportation hole. The traditional tool carrier is not conducive to personnel passing through, and has a great influence on tool transportation efficiency, personnel passing safety, and tool transportation convenience.

[0003] In the prior art, such as patent CN214062959U, a tool carrier structure for an inclined shaft tunneling machine is disclosed. A rack guide with a walking mechanism is arranged at the top of the main beam, and an electric crane is connected to the walking mechanism. The transportation of the tool from the main beam to the cutter head body is realized by the movement of the electric crane along the guide. A anti-slip brake is arranged on the walking mechanism to improve the safety of transportation. The patent can realize the transportation of the tool through the meshing transmission of the gear and the rack, but it is not convenient for personnel to pass through, and the structure is complex and occupies a large space, which is not suitable for the transportation of the tool from the front end of the main beam to the inside of the cutter head.

[0004] In summary, when the existing tunneling machine faces a complex tunnel line and needs to excavate in the attitude of horizontal, uphill or downhill, the conventional TBM tool is transported to the manhole position of the main beam, and then the integrated handcart crane on the tool carrier realizes the transfer of the tool to the inside of the cutter head body. The tool carrier mechanism is fixed and cannot be adjusted. In the case of uphill or downhill, the integrated handcart crane on the tool carrier may suddenly slide down, and there is a risk of collision when personnel pass from the manhole of the main beam to the inside of the cutter head. Therefore, developing a slope-adaptive and foldable TBM tool carrier mechanism has become a problem to be solved. SUMMARY

[0005] (I) Technical problems to be solved

[0006] The present application provides a slope-adaptive foldable TBM tool carrier, which aims to solve the problem that the traditional TBM tool carrier cannot maintain horizontal during slope excavation, causing the hoisted tool to easily slide off. And the problem that the traditional TBM tool carrier occupies a large space, causing personnel to easily collide.

[0007] (II) Technical solutions

[0008] In order to achieve the above object, the application provides a slope-adaptive foldable TBM cutting beam, which comprises a cutting beam mechanism, an adjusting mechanism and a hoisting mechanism arranged in the main body of the tunneling machine. The cutting beam mechanism comprises a first cutting beam, a second cutting beam movably connected to the first cutting beam, and the second cutting beam can perform telescopic movement along the extension direction of the first cutting beam. The first cutting beam and the second cutting beam are connected to the main body of the tunneling machine through the adjusting mechanism, and the adjusting mechanism comprises a plurality of adjusting devices, each adjusting device comprising a driving member and a connecting seat, one end of the connecting seat being fixed to the main body of the tunneling machine, the other end being hinged to the driving member, and the output end of the driving member being provided with a telescopic connecting rod, the distal end of the connecting rod being hinged to the first cutting beam or the second cutting beam; the adjusting mechanism can adjust the inclination angle of the first cutting beam and the second cutting beam according to the posture of the tunneling machine, so as to maintain the first cutting beam and the second cutting beam in a horizontal state. The hoisting mechanism is slidably connected to the cutting beam mechanism and is used for hoisting a cutting tool and can drive the cutting tool to slide on the first cutting beam or the second cutting beam.

[0009] Further, the movable connection between the second cutting beam and the first cutting beam is foldable connection, and the second cutting beam can be folded into or unfolded from the first cutting beam.

[0010] Further, the first cutting beam and the second cutting beam are arranged to slide relative to each other along the extension direction of the first cutting beam, a sliding groove is arranged on the first cutting beam, and one end of the second cutting beam is provided with a sliding shaft slidably connected to the sliding groove.

[0011] Further, the first cutting beam is an I-beam, the sliding groove is arranged on the web of the I-beam, the second cutting beam comprises two C-shaped beams arranged opposite to each other, and the web is arranged in the gap between the two C-shaped beams. At one end close to the I-beam, the two C-shaped beams are connected through the sliding shaft, and at the other end away from the I-beam, the two C-shaped beams are connected through a connecting plate.

[0012] Further, a ball and a ball cover plate are arranged between the top of the C-shaped beam and the I-beam.

[0013] Further, the first cutting beam is connected to the main body of the tunneling machine through at least two adjusting devices, and the second cutting beam is connected to the main body of the tunneling machine through at least one adjusting device.

[0014] Further technical solutions are that the top of the two ends of the first cutter beam is provided with a connecting lifting lug, the connecting rod is hinged with the connecting lifting lug; the top of the second cutter beam is provided with a mounting seat, and the connecting rod is hinged with the mounting seat.

[0015] Further technical solutions are that the mounting seat is fixedly connected with a driving device, and the driving device can drive the second cutter beam to reciprocatingly slide along the sliding groove.

[0016] Further technical solutions are that along the extension direction of the second cutter beam, a straight rack is arranged on the second cutter beam, and the driving device comprises a driving motor, and the driving motor is in transmission connection with the straight rack.

[0017] (Three) beneficial effects

[0018] The beneficial effects of the present application are:

[0019] The adjusting mechanism in the present application can flexibly adjust the inclination angle of the first cutter beam and the second cutter beam according to the posture of the tunneling machine, so that the cutter beam can maintain a horizontal state when tunneling in postures such as large longitudinal slope uphill or large longitudinal slope downhill, and the adaptability of the tunneling machine in complex terrain and frequent slope change in tunnel construction is enhanced, and the sliding of the hoisting structure caused by the inclination of the cutter beam is avoided, thereby avoiding the generation of safety problems such as personnel injury. The second cutter beam in the present application can perform telescopic movement along the extension direction of the first cutter beam, which enables the cutter beam to adjust the length according to actual needs, and when it is not needed, the second cutter beam can be folded and stored in the first cutter beam, thereby saving the occupied space of the cutter beam, leaving space for personnel to pass through the main beam manhole, and effectively avoiding the risk of bumping the second cutter beam when passing through. The sliding connection design of the hoisting mechanism further improves the installation and replacement efficiency of the cutter. The present application has the functions of angle adjustment and telescopic extension while keeping the structures of the cutter head, main drive, main beam and belt machine unchanged, and has the advantages of simple structure and convenient field maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a foldable TBM cutter beam with slope adaptability.

[0021] Figure 2 It is a schematic diagram of the state of slope tunneling.

[0022] Figure 3 It is a telescopic schematic diagram of the cutter beam mechanism when personnel pass through.

[0023] Figure 4 It is a schematic diagram of the overall structure of the first cutter beam.

[0024] Figure 5 It isFigure 4 schematic diagram of the cross section of the first blade beam in

[0025] Figure 6 schematic diagram of the overall structure of the adjusting mechanism;

[0026] Figure 7 schematic diagram of the connection between the second blade beam and the adjusting mechanism;

[0027] Figure 8 schematic diagram of the top view of Figure 7

[0028] Figure 9 schematic diagram of the cross section at B in Figure 7

[0029] Figure 10 schematic diagram of the enlarged view at A in Figure 9

[0030]

Explanation of reference signs

[0031] 1: blade beam mechanism; 11: first blade beam; 111: sliding groove; 112: connecting lug; 113: ball groove; 12: second blade beam; 121: sliding shaft; 122: connecting plate; 123: straight rack; 124: rolling sleeve; 2: adjusting mechanism; 21: adjusting device; 211: driving member; 212: connecting seat; 213: connecting rod; 3: hoisting mechanism; 4: tunneling machine main body; 5: ball; 6: ball cover plate; 7: mounting seat; 8: driving device; 81: driving motor; 9: pin shaft; 10: main beam. DETAILED DESCRIPTION

[0032] In order to better explain the present application, so as to be understood, the present application is described in detail below by specific embodiments, combined with the drawings.

[0033] The present embodiment provides a slope-adaptive foldable TBM blade beam, referring to Figures 1-3 ​​​As shown, including the cutter beam mechanism 1, adjustment mechanism 2 and hoisting mechanism 3 in the tunneling machine body 4. The cutter beam mechanism 1 includes a first cutter beam 11, a second cutter beam 12 movably connected to the first cutter beam 11, and the second cutter beam 12 can be telescopic along the extension direction of the first cutter beam 11. The first cutter beam 11 and the second cutter beam 12 are connected to the tunneling machine body 4 through the adjustment mechanism 2, and the adjustment mechanism 2 can adjust the inclination angle of the first cutter beam 11 and the second cutter beam 12 according to the posture of the tunneling machine to maintain the first cutter beam 11 and the second cutter beam 12 in a horizontal state. Specifically, in this embodiment, the adjustment mechanism 2 includes a plurality of adjustment devices 21, the adjustment device 21 includes a driving member 211 and a connecting seat 212, one end of the connecting seat 212 is fixed to the tunneling machine body 4, the other end is hinged with the driving member 211, the output end of the driving member 211 is provided with a telescopic connecting rod 213, and the tail end of the connecting rod 213 is hinged with the first cutter beam 11 or the second cutter beam 12. The driving member 211 here can select any one of the linear driving devices 8 such as hydraulic cylinder, motor or air cylinder, and in this embodiment, the hydraulic cylinder is selected, and the purpose of hinging is to realize the adaptive adjustment of the first cutter beam 11 and the second cutter beam 12, and to ensure the horizontal adjustment precision. The specific hinged place is installed in the way of inserting the pin shaft 9 into the pin hole.

[0034] The hoisting mechanism 3 is slidably connected to the cutter beam mechanism 1, used for hoisting the cutter, and can drive the cutter to slide on the first cutter beam 11 or the second cutter beam 12.

[0035] Specifically, the present application optimizes the cutter conveying structure between the main beam 10 and the cutter head body, maintains the cutter head, main drive, main beam 10 and belt machine structure unchanged on the basis of the original single steel beam structure, and has the angle adjustment function, solves the problem that the hoisting mechanism 3 slips when the inclination angle is excavated, and the personnel hits the head when passing through. The specific form of the hoisting mechanism 3 here is an integrated trolley crane. The first cutter beam 11 and the second cutter beam 12 are connected to the tunneling machine body 4 through the adjustment mechanism 2, which is specifically connected to the two side plates of the belt machine. This makes the cutter beam able to adjust the inclination angle according to the posture of the tunneling machine, and ensures that the first cutter beam 11 and the second cutter beam 12 can maintain a horizontal state at any slope. Enhances the tunneling ability of the tunneling machine under complex geological conditions, especially in tunnel construction with large slope changes, can maintain stable tunneling efficiency. At the same time, the cutter installation and replacement also have better positioning accuracy. According to the external posture data of the tunneling machine, the adjustment mechanism 2 is accurately controlled, and the first cutter beam 11 and the second cutter beam 12 can be kept in a horizontal state at any time, avoiding the forward sliding or backward sliding of the hoisting mechanism 3 due to the inclination angle of the cutter beam, indirectly controlling the possibility of mechanical injury to personnel.

[0036] In this embodiment, the movable connection between the second cutter beam 12 and the first cutter beam 11 is a foldable connection, and the second cutter beam 12 can be folded and stored in or extended from the first cutter beam 11. This improves the space utilization. When excavation or cutter transportation is not required, the second cutter beam 12 can be folded and stored inside the first cutter beam 11, greatly saving space, making the structure of the entire TBM (full-face hard rock tunnel boring machine) more compact, providing more space for the main beam and manhole, and facilitating personnel to enter the cutter head through the manhole for maintenance or replacement of cutters and other tasks. The foldable connection of the second cutter beam 12 is more convenient and efficient during maintenance and replacement.

[0037] Specifically, as shown in Figures 4-5 In this embodiment, the first cutter beam 11 and the second cutter beam 12 are arranged to slide relative to each other along the extension direction of the first cutter beam 11. The first cutter beam 11 is provided with a sliding groove 111, and one end of the second cutter beam 12 is provided with a sliding shaft 121 connected with the sliding groove 111. The sliding connection of the sliding groove 111 and the sliding shaft 121 can ensure the stability of the second cutter beam 12 during sliding. Preferably, the sliding shaft 121 is provided with multiple groups, and in this embodiment, there are four groups.

[0038] Specifically, the first cutter beam 11 is an I-beam made of steel, which has excellent strength and pressure resistance, can withstand large loads and pressures, and is not easy to deform, ensuring the stability and safety of the structure of the first cutter beam 11.

[0039] ‌The sliding groove 111 is located on the web of the I-beam, and the second cutter beam 12 includes two C-shaped beams with openings arranged opposite to each other, and the web is clamped in the gap between the two C-shaped beams. At one end close to the I-beam, the two C-shaped beams are connected by the sliding shaft 121, and at the other end away from the I-beam, the two C-shaped beams are connected by a connecting plate 122.

[0040] As shown in Figures 7-10 It should be noted that the C-shaped beam is preferably a channel steel, which can be clamped into the axial notch of the I-beam and clamp the web of the I-beam. This forms a stable connection between the second cutter beam 12 and the I-beam, effectively preventing the cutter beam from shaking or shifting during use, thereby enhancing the stability of the entire structure. The structural design of the two C-shaped beams itself has high load-bearing capacity, and connecting them through the sliding shaft 121 and the connecting plate 122 further enhances this load-bearing capacity. This design enables the second cutter beam 12 to withstand greater loads, meeting the high strength requirements in excavation or cutting operations. The sliding connection design of the sliding groove 111 and the sliding shaft 121 allows the second cutter beam 12 to be easily installed on the I-beam or detached from the I-beam. This simplifies the installation and detachment process, reduces maintenance costs, and improves work efficiency.

[0041] Specifically, in this embodiment, a ball 5 and a ball cover plate 6 are arranged between the top of the C-shaped beam and the I-beam, and a ball groove 113 is arranged on the I-beam corresponding to the ball 5; a rolling sleeve 124 is sleeved on the sliding shaft 121.

[0042] The rolling of the ball 5 arranged between the C-shaped beam and the I-beam in the ball groove 113 greatly reduces the friction between the C-shaped beam and the I-beam. This rolling friction has a smaller friction coefficient than sliding friction, so it can significantly reduce wear and tear and prolong the service life of the C-shaped beam and the I-beam. The cooperation of the ball 5 and the ball groove 113 makes the movement of the C-shaped beam relative to the I-beam more flexible and has higher movement precision. The design of the ball 5 and the ball cover plate 6 not only reduces the friction, but also effectively disperses and absorbs the impact and vibration during movement, thereby enhancing the stability and reliability of the structure. The rolling sleeve 124 also plays a role in reducing friction and wear. It makes the movement of the sliding shaft 121 in the sliding groove 111 change from sliding to rolling, making it smoother, reducing energy loss, and improving the overall efficiency of the system.

[0043] As shown in Figure 2 , Figure 3 and Figure 6 , in this embodiment, the first cutter beam 11 is connected to the tunneling machine body 4 through at least two groups of adjusting devices 21, and the second cutter beam 12 is connected to the tunneling machine body 4 through at least one group of adjusting devices 21. The connection mode of multiple groups of adjusting devices 21 helps to disperse the force and vibration generated during tunneling, thereby enhancing the overall stability of the tunneling machine and reducing the shaking and deviation of the tunneling machine during operation.

[0044] In combination with Figure 4 and Figure 5 , specifically, in this embodiment, the top of both ends of the first cutter beam 11 is provided with a connecting lug 112, and the connecting rod 213 is hinged to the connecting lug 112; the connecting lug 112 is mainly used to enhance the strength of the hinge and ensure the stability of the connection of the first cutter beam 11. In combination with Figure 7 , the top of the second cutter beam 12 is provided with a mounting seat 7, and the connecting rod 213 is hinged to the mounting seat 7. The mounting seat 7 is mainly used to enhance the strength of the hinge and ensure the stability of the connection of the second cutter beam 12.

[0045] In this embodiment, the mounting seat 7 is fixedly connected with a driving device 8, which can drive the second cutter beam 12 to reciprocate along the sliding groove 111. Specifically, as shown in Figure 8As shown, the driving device 8 is an electric motor, and in practice, hydraulic structure, motor and other ways can be used to realize angle adjustment. The electric motor here can be selected as servo or step, preferably servo, and the adjustment accuracy is better. Specifically, in the embodiment, along the extension direction of the second cutter beam 12, a straight rack 123 is arranged on the second cutter beam 12, and the driving device 8 comprises a driving motor 81, and the driving motor 81 is in transmission connection with the straight rack 123. Specifically, the output end of the motor is connected with a cylindrical gear, and the cylindrical gear is in transmission connection with the straight rack 123. Compared with other complex transmission mechanisms, the gear and the rack are matched more simply, and the failure points and maintenance difficulties are reduced.

[0046] The embodiment provides an automatic way to realize the telescopic folding of the cutter beam, and in actual application, the telescopic folding of the cutter beam can be realized in a manual control mode. The cylindrical gear on the driving motor 81 is disengaged from the straight rack 123 on the second cutter beam 12, and on-site personnel can realize manual telescopic folding by pushing the second cutter beam 12.

[0047] In summary, the actual construction process of the heading machine provided with the slope-adaptive foldable TBM cutter beam of the embodiment is as follows:

[0048] When the heading machine heads to the slope route, the control room senses the heading posture.

[0049] According to the stroke feedback of the hydraulic cylinders connected to the horizontal adjustment mechanism 2 on both ends of the first cutter beam 11, the extension amounts of the two hydraulic cylinders are adjusted to appropriate positions, so that the first cutter beam 11 is kept horizontal, preventing the integrated handcart crane from suddenly sliding when heading on the slope, affecting the safety of the workers, and improving the cutter efficiency when heading on the slope.

[0050] When the personnel need to pass through the manhole on the main beam 10, the driving motor 81 is controlled to make the second cutter beam 12 shrink into the first cutter beam 11 through gear engagement transmission, preventing the danger of head collision when passing through.

[0051] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiment are only used to explain the relative positional relationship and movement condition between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0052] In addition, the description such as "first", "second" and the like in the embodiment is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the embodiment, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0053] In the present embodiment, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0054] It should be understood that the above description of specific embodiments of the present application is only for the purpose of illustrating the technical route and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, but the present application is not limited to the above specific implementation. Any changes or modifications made within the scope of the claims of the present application should be covered within the protection scope of the present application.

Claims

1. A slope-adaptive foldable TBM cutter beam, characterized in that, Includes the cutter beam mechanism (1), adjustment mechanism (2) and hoisting mechanism (3) located inside the main body (4) of the tunneling machine; The blade beam mechanism (1) includes a first blade beam (11) and a second blade beam (12) movably connected to the first blade beam (11). The second blade beam (12) is capable of telescopic movement along the extension direction of the first blade beam (11). The first cutter beam (11) and the second cutter beam (12) are connected to the tunneling machine body (4) through the adjustment mechanism (2). The adjustment mechanism (2) includes multiple sets of adjustment devices (21). The adjustment device (21) includes a drive member (211) and a connecting seat (212). One end of the connecting seat (212) is fixed to the tunneling machine body (4), and the other end is hinged to the drive member (211). The output end of the drive member (211) is provided with a telescopic connecting rod (213). The end of the connecting rod (213) is hinged to the first cutter beam (11) or the second cutter beam (12). The adjustment mechanism (2) can adjust the tilt angle of the first cutter beam (11) and the second cutter beam (12) according to the attitude of the tunneling machine to maintain the first cutter beam (11) and the second cutter beam (12) in a horizontal state. The hoisting mechanism (3) is slidably connected to the blade beam mechanism (1) for hoisting the blade and can drive the blade to slide on the first blade beam (11) or the second blade beam (12).

2. The slope-adaptive foldable TBM cutter beam as described in claim 1, characterized in that, The second blade (12) and the first blade (11) are connected by a foldable connection, and the second blade (12) can be folded in or extended from the first blade (11).

3. The slope-adaptive foldable TBM cutter beam as described in claim 2, characterized in that, The first blade (11) and the second blade (12) are slidably disposed relative to each other. Along the extension direction of the first blade (11), the first blade (11) is provided with a groove (111), and one end of the second blade (12) is provided with a sliding shaft (121) that is slidably connected to the groove (111).

4. The slope-adaptive foldable TBM cutter beam as described in claim 3, characterized in that, The first blade beam (11) is an I-beam, and the groove (111) is located on the web of the I-beam. The second blade beam (12) includes two C-shaped beams with openings facing away from each other, and the web is sandwiched in the gap between the two C-shaped beams. At one end near the I-beam, the two C-beams are connected by the sliding shaft (121), and at the other end away from the I-beam, the two C-beams are connected by the connecting plate (122).

5. The slope-adaptive foldable TBM cutter beam as described in claim 4, characterized in that, A ball bearing (5) and a ball bearing cover plate (6) are provided between the top of the C-shaped beam and the I-beam. A ball bearing groove (113) is provided on the I-beam corresponding to the ball bearing (5). A roller sleeve (124) is fitted on the sliding shaft (121).

6. The slope-adaptive foldable TBM cutter beam as described in any one of claims 3-5, characterized in that, The first cutter beam (11) is connected to the tunneling machine body (4) through at least two sets of the adjustment devices (21), and the second cutter beam (12) is connected to the tunneling machine body (4) through at least one set of the adjustment devices (21).

7. The slope-adaptive foldable TBM cutter beam as described in claim 6, characterized in that, The first blade beam (11) has connecting lugs (112) at the top of both ends, and the connecting rod (213) is hinged to the connecting lugs (112); the second blade beam (12) has a mounting base (7) at the top, and the connecting rod (213) is hinged to the mounting base (7).

8. The slope-adaptive foldable TBM cutter beam as described in claim 7, characterized in that, A drive device (8) is fixedly connected to the mounting base (7), and the drive device (8) can drive the second blade beam (12) to slide back and forth along the slide groove (111).

9. The slope-adaptive foldable TBM cutter beam as described in claim 8, characterized in that, Along the extension direction of the second blade beam (12), a straight rack (123) is provided on the second blade beam (12), and the driving device (8) includes a drive motor (81), which is connected to the straight rack (123) in a transmission connection.

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