Inclined shaft TBM and heading machine main machine
By configuring a propulsion cylinder for each shoe support mechanism, the problem of insufficient thrust of the double shoe support mechanism under large uphill conditions is solved, and the stability and rock-breaking efficiency of the boring machine main machine are improved.
Patent Information
- Application Number
- CN202422098349.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In the prior art, the double-shoe boot mechanism is insufficient in the large uphill working conditions, resulting in low rock breaking efficiency and insufficient safety.
At least one propulsion cylinder is provided for each shoe mechanism, so that each shoe mechanism can be moved and changed independently, and provides additional propulsion power to the main beam.
It improves the stability and safety of the boring machine main machine, increases the propulsion power under large uphill conditions, and improves the rock breaking efficiency.
Smart Images

Figure CN222976818U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of tunnel excavation equipment, and particularly relates to an inclined shaft TBM and a mainframe of a roadheader. Background Technique
[0002] During the tunneling process of the mainframe of a TBM (hard rock tunnel boring machine), the support shoes at the tail of the mainframe are tightened against the tunnel wall, and the propulsion cylinders connected between the support shoes and the main girder of the mainframe can drive the mainframe forward. The support shoes provide support for the propulsion of the mainframe. During the tunneling of the inclined shaft, the component force of the self-weight of the TBM in the tunnel axis direction will affect the propulsion of the mainframe. Therefore, it is necessary to increase the support shoes or add safety devices to prevent the TBM from slipping down under the action of its own weight and improve the stability of the TBM.
[0003] For example, a Chinese invention patent application with the publication number of CN114876470A and the publication date of August 9, 2022 discloses an inclined shaft TBM. The inclined shaft TBM includes a TBM mainframe, an ABS device and a rear support system. There are two ABS devices arranged front and back and connected to each other. The front ABS device is connected to the TBM mainframe, and the rear ABS device is connected to the rear support system. The TBM mainframe includes a cutter head and a box-shaped main girder. The cutter head is connected to the main drive arranged on the box-shaped main girder, and the main drive provides the power for the rotation of the cutter head. A support shoe support device capable of moving back and forth along the box-shaped main girder is arranged on the box-shaped main girder. There are two support shoe support devices and they are fixed together to form a double support shoe mechanism. A propulsion cylinder is arranged between the double support shoe mechanism and the box-shaped main girder.
[0004] Generally, the double support shoe mechanism, the front ABS device and the rear ABS device can retract the support shoes in sequence for step change. When the support shoes of the double support shoe mechanism are retracted for step change, they rely on the front ABS device and the rear ABS device to tighten against the tunnel wall. When the support shoes of the front ABS device are retracted for step change, they rely on the double support shoe mechanism and the rear ABS device to tighten against the tunnel wall. When the support shoes of the rear ABS device are retracted for step change, they rely on the double support shoe mechanism and the front ABS device to tighten against the tunnel wall. In this way, it can ensure that the inclined shaft TBM has higher stability during the step change process.
[0005] When the double support shoe mechanism in the prior art changes steps, all the support shoes of the double support shoe mechanism are retracted simultaneously. At this time, only relying on the first safety device and the second safety device to tighten against the tunnel wall, it is difficult to provide reliable support for the TBM under the working condition of a large uphill slope, and the safety is still insufficient. In addition, only one propulsion cylinder is arranged between one of the support shoe support devices of the double support shoe mechanism in the prior art and the main girder, and the thrust required for rock breaking is only provided by this propulsion cylinder. There is a problem that the thrust is insufficient during construction under the working condition of a large uphill slope and it is difficult to effectively break the rock. Content of the Utility Model
[0006] One of the purposes of the present utility model is to provide a mainframe of a roadheader, so as to solve the technical problems of insufficient safety caused by relying only on the first safety device and the second installation device to support the tunnel wall tightly during the step change of the double support shoe mechanism in the prior art, and the technical problems of insufficient driving force for the forward movement of the mainframe and low rock breaking efficiency under the condition of a large uphill due to only arranging a propulsion oil cylinder between the rear support shoe mechanism and the main beam in the double support shoe mechanism.
[0007] Another purpose of the present utility model is to provide an inclined shaft TBM to solve the above technical problems.
[0008] To achieve the above purpose, the technical solution of the mainframe of the roadheader provided by the present utility model is:
[0009] A mainframe of a roadheader includes a main beam or an inner shell. At least two support shoe mechanisms are arranged at the rear of the main beam or the inner shell from front to back. Each support shoe mechanism is configured with at least one propulsion oil cylinder. The support shoe mechanism includes a support shoe frame and a top support structure connected to the support shoe frame for tightly supporting the tunnel wall. One end of the propulsion oil cylinder is connected to the corresponding support shoe frame, and the other end is connected to the main beam or the inner shell. Each propulsion oil cylinder is a propulsion synchronous oil cylinder for synchronously propelling the main beam or the inner shell.
[0010] As a further improvement, the propulsion oil cylinder is located at the front side of the corresponding support shoe frame.
[0011] As a further improvement, the cylinder body of the propulsion oil cylinder is connected to the corresponding support shoe frame, and the piston rod of the propulsion oil cylinder is connected to the main beam or the inner shell.
[0012] As a further improvement, the support shoe frame is of a rectangular frame structure and is sleeved on the main beam or the inner shell.
[0013] As a further improvement, each support shoe mechanism is configured with at least two propulsion oil cylinders, and the propulsion oil cylinders configured for each support shoe mechanism are evenly distributed in the circumferential direction of the main beam or the inner shell.
[0014] The beneficial effects are as follows: The mainframe of the roadheader provided by the present utility model belongs to an invention and creation with changed elements. Compared with the prior art, in the present utility model, each support shoe mechanism is configured with a propulsion oil cylinder. On the one hand, each support shoe mechanism can independently move along the main beam or the inner shell by using its own propulsion oil cylinder, so that each support shoe mechanism can independently change steps. When one support shoe mechanism changes steps, the remaining support shoe mechanisms can keep supporting the tunnel wall tightly, thereby further improving the stability of the mainframe of the roadheader and ensuring high safety during the construction process. On the other hand, the propulsion oil cylinders configured for each support shoe mechanism can all provide power for the forward movement of the main beam or the inner shell. Therefore, compared with the prior art, the forward power of the main beam or the inner shell and the mainframe of the roadheader is increased several times, ensuring sufficient driving force for the forward movement of the mainframe of the roadheader under the condition of a large uphill and improving the rock breaking efficiency.
[0015] To achieve the above object, the technical solution of the inclined shaft TBM provided by the present utility model is as follows:
[0016] An inclined shaft TBM includes a main tunneling machine and a rear support system located behind the main tunneling machine. The main tunneling machine includes a main beam or an inner shell. At least two shoe support mechanisms are arranged at the rear of the main beam or the inner shell from front to back. Each shoe support mechanism is configured with at least one propulsion cylinder. The shoe support mechanism includes a shoe support frame and a top support structure connected to the shoe support frame for tightly supporting the tunnel wall. One end of the propulsion cylinder is connected to the corresponding shoe support frame, and the other end is connected to the main beam or the inner shell. Each propulsion cylinder is a propulsion synchronous cylinder for synchronously propelling the main beam or the inner shell.
[0017] As a further improvement, the propulsion cylinder is located on the front side of the corresponding shoe support frame.
[0018] As a further improvement, the cylinder body of the propulsion cylinder is connected to the corresponding shoe support frame, and the piston rod of the propulsion cylinder is connected to the main beam or the inner shell.
[0019] As a further improvement, the shoe support frame is of a rectangular frame structure and is sleeved on the main beam or the inner shell.
[0020] As a further improvement, each shoe support mechanism is configured with at least two propulsion cylinders, and the propulsion cylinders configured for each shoe support mechanism are evenly distributed in the circumferential direction of the main beam or the inner shell.
[0021] The beneficial effects are as follows: The inclined shaft TBM provided by the present utility model belongs to an invention creation with changed elements. Compared with the prior art, in the present utility model, each shoe support mechanism is configured with a propulsion cylinder. On the one hand, each shoe support mechanism can independently move along the main beam or the inner shell by using its own propulsion cylinder, so that each shoe support mechanism can independently change steps. When one shoe support mechanism changes steps, the remaining shoe support mechanisms can keep tightly supporting the tunnel wall, thereby further improving the stability of the inclined shaft TBM and ensuring high safety during the construction process. On the other hand, the propulsion cylinders configured for each shoe support mechanism can all provide forward power for the main beam or the inner shell. Therefore, compared with the prior art, the forward power of the main beam or the inner shell and the main tunneling machine is increased several times, ensuring sufficient forward driving force for the main tunneling machine under the condition of a large uphill working condition and improving the rock breaking efficiency. Description of the Drawings
[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the inclined shaft TBM in the present utility model;
[0023] Figure 2 It is a schematic diagram of the process of the first shoe support mechanism changing steps in an embodiment of the inclined shaft TBM in the present utility model;
[0024] Figure 3Schematic diagram of the process of changing steps of the second support shoe mechanism in an embodiment of the inclined shaft TBM of the present invention;
[0025] Figure 4 Schematic diagram of the process of changing steps of the first ABS system in an embodiment of the inclined shaft TBM of the present invention;
[0026] Figure 5 Schematic diagram of the process of changing steps of the second ABS system in an embodiment of the inclined shaft TBM of the present invention.
[0027] Description of reference numerals:
[0028] 1. Main beam; 2. Shield body; 3. First support shoe mechanism; 31. First support shoe frame; 32. First support shoe oil cylinder; 33. First support shoe plate; 4. Second support shoe mechanism; 41. Second support shoe frame; 42. Second support shoe oil cylinder; 43. Second support shoe plate; 5. First ABS system; 51. Third support shoe frame; 52. Third support shoe oil cylinder; 53. Third support shoe plate; 6. Second ABS system; 61. Fourth support shoe frame; 62. Fourth support shoe oil cylinder; 63. Fourth support shoe plate; 7. First propulsion oil cylinder; 8. Second propulsion oil cylinder; 9. First towing oil cylinder; 10. Second towing oil cylinder; 11. Rear support; 12. Rear matching trailer; 13. Tunnel wall. Detailed implementation manners
[0029] The following further describes the present invention in detail with reference to embodiments.
[0030] To solve the problems in the prior art, the basic concept of the present invention is to configure a propulsion oil cylinder for each support shoe mechanism. On the one hand, it can enable each support shoe system to change steps independently, improving the safety during the step-changing process; on the other hand, each support shoe system can provide driving force for the forward movement of the main beam or the inner shell through the propulsion oil cylinder, improving the rock-breaking efficiency.
[0031] Specific embodiments of the inclined shaft TBM provided by the present invention:
[0032] An inclined shaft TBM, see the attached Figure 1 , including a roadheader main machine and two ABS systems and a rear matching system connected in sequence behind the roadheader main machine.
[0033] The roadheader main machine includes a main beam 1, a cutter head and a shield body 2 arranged at the front of the main beam 1, two support shoe mechanisms arranged at the rear of the main beam 1, and a rear support 11. The cutter head, the shield body 2 and the rear support 11 are all prior arts and will not be elaborated here.
[0034] The two support shoe mechanisms are respectively the first support shoe mechanism 3 and the second support shoe mechanism 4, and the first support shoe mechanism 3 is located in front of the second support shoe mechanism 4. The first support shoe mechanism 3 includes a first support shoe frame 31 and a first jacking structure connected to the first support shoe frame 31 for tightening the hole wall 13. Specifically, the first jacking structure includes two first support shoe cylinders 32 connected to the first support shoe frame 31 and a first support shoe plate 33 connected to the first support shoe cylinders 32. When the first support shoe cylinders 32 extend, the first support shoe plate 33 can be tightened against the hole wall 13 to fix the position of the first support shoe mechanism 3.
[0035] The first support shoe frame 31 is of a rectangular frame structure. The first support shoe frame 31 is sleeved on the main beam 1 and is slidably matched with the main beam 1 in the front-back direction. Each support shoe mechanism is equipped with two propulsion cylinders. The propulsion cylinders configured for the first support shoe mechanism 3 are the first propulsion cylinders 7, and the propulsion cylinders configured for the second support shoe mechanism 4 are the second propulsion cylinders 8. The two first propulsion cylinders 7 are both located on the front side of the first support shoe frame 31. The two first propulsion cylinders 7 are respectively located on the left and right sides of the main beam 1. The cylinder end of the first propulsion cylinder 7 is hinged to the first support shoe frame 31, and connecting lugs are provided on the main beam 1. The piston rod end of the first propulsion cylinder 7 is hinged to the corresponding connecting lug.
[0036] The first propulsion cylinders 7 and the second propulsion cylinders 8 are propulsion synchronous cylinders. A propulsion synchronous cylinder means that they extend synchronously when the main beam is propelled and do not retract synchronously during the step change.
[0037] The second support shoe mechanism 4 includes a second support shoe frame 41 and a second jacking structure connected to the second support shoe frame 41 for tightening the hole wall 13. Specifically, the second jacking structure includes two second support shoe cylinders 42 connected to the second support shoe frame 41 and a second support shoe plate 43 connected to the second support shoe cylinders 42. When the second support shoe cylinders 42 extend, the second support shoe plate 43 can be tightened against the hole wall 13 to fix the position of the second support shoe mechanism 4. The second support shoe frame 41 is also of a rectangular frame structure. The second support shoe frame 41 is sleeved on the main beam 1 and is slidably matched with the main beam 1 in the front-back direction. The two second propulsion cylinders 8 are both located on the front side of the second support shoe frame 41. The two second propulsion cylinders 8 are respectively located on the left and right sides of the main beam 1. The cylinder end of the second propulsion cylinder 8 is hinged to the second support shoe frame 41, and the piston rod end of the second propulsion cylinder 8 is hinged to the corresponding connecting lug.
[0038] The two ABS systems are respectively the first ABS system 5 and the second ABS system 6. The first ABS system 5 is located in front of the second ABS system 6. A first towing cylinder 9 is connected between the first ABS system 5 and the tail end of the main beam 1. A second towing cylinder 10 is connected between the second ABS system 6 and the first ABS system 5.
[0039] The first ABS system 5 includes a third shoe support frame 51, a third shoe support oil cylinder 52 connected to the third shoe support frame 51, and a third shoe support plate 53 connected to the third shoe support oil cylinder 52. The second ABS system 6 includes a fourth shoe support frame 61, a fourth shoe support oil cylinder 62 connected to the fourth shoe support frame 61, and a fourth shoe support plate 63 connected to the fourth shoe support oil cylinder 62. When the third shoe support oil cylinder 52 extends, the third shoe support plate 53 can be tightened against the tunnel wall 13 to fix the position of the first ABS system 5. When the fourth shoe support oil cylinder 62 extends, the fourth shoe support plate 63 can be propped against the tunnel wall 13 to fix the position of the second ABS system 6.
[0040] The two ABS systems use independent hydraulic sources. When faults occur in the two shoe support mechanisms, the ABS systems can ensure that the inclined shaft TBM will not slide down.
[0041] The rear support system includes a plurality of sequentially connected rear support trailers 12. The foremost rear support trailer 12 is connected to the fourth shoe support frame 61 in a hinged manner.
[0042] During the tunneling process of the inclined shaft TBM, the first shoe support oil cylinder 32, the second shoe support oil cylinder 42, the third shoe support oil cylinder 52, and the fourth shoe support oil cylinder 62 all remain in the extended state, so that the first shoe support plate 33, the second shoe support plate 43, the third shoe support plate 53, and the fourth shoe support plate 63 are all tightened against the tunnel wall 13. The first propulsion oil cylinder 7 and the second propulsion oil cylinder 8 extend to push the main beam 1 connected thereto forward, and thus the entire tunneling machine is pushed forward. During this process, the first towing oil cylinder 9 extends followingly, and the second towing oil cylinder 10 remains in the retracted state. During the propulsion of the tunneling machine, the oil cylinder of the rear support 11 is in the retracted state.
[0043] The process of changing steps is divided into four steps, namely the step change of the first shoe support mechanism 3, the step change of the second shoe support mechanism 4, the step change of the first ABS system 5, and the step change of the second ABS system 6. During the step change process, the oil cylinder of the rear support 11 is in the extended state.
[0044] The process of the step change of the first shoe support mechanism 3 is as follows: Refer to the appendix Figure 2 , the first shoe support oil cylinder 32 retracts, so that the first shoe support plate 33 no longer tightens against the tunnel wall 13, while the second shoe support plate 43, the third shoe support plate 53, and the fourth shoe support plate 63 still remain tightened against the tunnel wall 13; then the first propulsion oil cylinder 7 retracts, driving the first shoe support frame 31 to move forward. After the first shoe support frame 31 moves forward in place, the first shoe support oil cylinder 32 extends again so that the first shoe support plate 33 tightens against the tunnel wall 13; during this process, the second propulsion oil cylinder 8 and the first towing oil cylinder 9 remain in the extended state, and the second towing oil cylinder 10 remains in the retracted state.
[0045] The process of the step change of the second shoe support mechanism 4 is as follows: Refer to the appendix Figure 3, the second support shoe cylinder 42 retracts, causing the second support shoe plate 43 to no longer press tightly against the tunnel wall 13, while the first support shoe plate 33, the third support shoe plate 53, and the fourth support shoe plate 63 still remain pressing tightly against the tunnel wall 13; then the second propulsion cylinder 8 retracts, driving the second support shoe frame 41 to move forward. After the second support shoe frame 41 moves forward in place, the second support shoe cylinder 42 extends again so that the second support shoe plate 43 presses tightly against the tunnel wall 13; during this process, the first propulsion cylinder 7 and the second towing cylinder 10 remain in the retracted state, and the first towing cylinder 9 remains in the extended state.
[0046] The process of the first ABS system 5 changing steps is as follows: Refer to the appendix Figure 4 , the third support shoe cylinder 52 retracts, causing the third support shoe plate 53 to no longer press tightly against the tunnel wall 13, while the first support shoe plate 33, the second support shoe plate 43, and the fourth support shoe plate 63 still remain pressing tightly against the tunnel wall 13; then the first towing cylinder 9 retracts and at the same time the second towing cylinder 10 extends as it moves, driving the third support shoe frame 51 to move forward. After the third support shoe frame 51 moves forward in place, the third support shoe cylinder 52 extends again so that the third support shoe plate 53 presses tightly against the tunnel wall 13; during this process, the first propulsion cylinder 7 and the second propulsion cylinder 8 remain in the retracted state.
[0047] The process of the second ABS system 6 changing steps is as follows: Refer to the appendix Figure 5 , the fourth support shoe cylinder 62 retracts, causing the fourth support shoe plate 63 to no longer press tightly against the tunnel wall 13, while the first support shoe plate 33, the second support shoe plate 43, and the third support shoe plate 53 still remain pressing tightly against the tunnel wall 13; then the second towing cylinder 10 retracts, driving the fourth support shoe frame 61 to move forward and at the same time driving the rear support system to move forward. After the fourth support shoe frame 61 moves forward in place, the fourth support shoe cylinder 62 extends again so that the fourth support shoe plate 63 presses tightly against the tunnel wall 13; during this process, the first propulsion cylinder 7, the second propulsion cylinder 8, and the first towing cylinder 9 all remain in the retracted state.
[0048] Compared with the prior art, both of the two support shoe mechanisms of this inclined shaft TBM are configured with propulsion cylinders. Therefore, both of the two support shoe mechanisms can independently change steps. During the tunneling and step-changing process, this inclined shaft TBM can ensure that at least three pairs of support shoe plates press tightly against the tunnel wall 13, effectively improving the stability of this inclined shaft TBM during the step-changing process and ensuring construction safety. In addition, because both of the two support shoe mechanisms are configured with propulsion cylinders, compared with the prior art, the propulsion force received by the main beam 1 increases exponentially, and it can provide a greater thrust for the inclined shaft TBM under the working condition of a large uphill slope to efficiently break rocks.
[0049] In other embodiments, the number of propulsion cylinders configured for each support shoe mechanism can also be three or four. In this embodiment, the propulsion cylinders are evenly distributed in the circumferential direction of the main beam to ensure uniform force on the main beam.
[0050] In the above embodiments, the support shoe frame is a rectangular frame structure, which can facilitate the support shoe frame to be sleeved on the main beam and slidably cooperate with the main beam. In other embodiments, the support shoe frame can also be a U-shaped structure, and in this embodiment, the support shoe frame can be sleeved on the main beam from bottom to top.
[0051] In the above embodiments, the cylinder block of the propulsion oil cylinder is connected to the corresponding support shoe frame, and the piston rod of the propulsion oil cylinder is connected to the main beam, which is for facilitating the layout of the hydraulic pipeline. In other embodiments, the cylinder block of the propulsion oil cylinder can also be connected to the main beam, and the piston rod of the propulsion oil cylinder is connected to the corresponding support shoe frame.
[0052] In the above embodiments, the propulsion oil cylinder is arranged on the front side of the corresponding support shoe frame, so that the propulsion oil cylinder drives the main beam to advance by using the jacking force. The jacking force that the driving oil cylinder can provide is greater than the pulling force it can provide. Therefore, the above embodiments can make full use of the power of the propulsion oil cylinder. In other embodiments, the propulsion oil cylinder can also be arranged on the rear side of the corresponding support shoe frame. In this embodiment, the propulsion oil cylinder drives the main beam to advance by using the pulling force. To ensure sufficient driving force, an oil cylinder with a higher power can be used. When the propulsion oil cylinder is arranged on the rear side of the corresponding support shoe frame, the propulsion oil cylinder retracts synchronously when advancing the main beam and does not extend synchronously during the step change.
[0053] In other embodiments, the support shoe mechanism can also be added as needed. The number of support shoe mechanisms can be three or four, and each support shoe mechanism is still arranged along the extension direction of the main beam.
[0054] In other embodiments, the number of ABS systems can also be reduced or the ABS system can be not provided as needed. When the ABS system is not provided, the most forward trailing trailer is directly connected to the rear end of the main beam. When the ABS system is not provided, a part of the support shoe mechanisms can be used with different hydraulic sources separately from another part of the support shoe mechanisms to improve the reliability of the inclined shaft TBM.
[0055] The inclined shaft TBM in the above embodiments belongs to the main beam type rock tunnel boring machine. However, the setting method of the support shoe mechanism in the above embodiments can also be applied to the Kelly type rock tunnel boring machine, and the only difference is that the main beam is replaced with an inner Kelly, which will not be elaborated here.
[0056] Specific embodiments of the mainframe of the tunneling machine provided by the present utility model:
[0057] The mainframe of the tunneling machine is the mainframe of the above-mentioned inclined shaft TBM, which will not be elaborated here.
[0058] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative efforts, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A main machine of a tunnel boring machine, characterized in that: The invention comprises a main beam (1) or an inner frame, wherein at least two shoe support mechanisms are arranged at the rear of the main beam (1) or the inner frame from front to rear, each shoe support mechanism is equipped with at least one propulsion cylinder, the shoe support mechanism comprises a shoe support frame and a top support structure connected to the shoe support frame for supporting the hole wall (13), one end of the propulsion cylinder is connected to the corresponding shoe support frame, and the other end is connected to the main beam (1) or the inner frame, and each propulsion cylinder is a propulsion synchronization cylinder for synchronously propulsing the main beam (1) or the inner frame.
2. The main machine of the tunnel boring machine according to claim 1, characterized in that: The thrust cylinder is located on the front side of the corresponding shoe support.
3. The main machine of the tunnel boring machine according to claim 1 or 2, characterized in that: The cylinder body of the propulsion oil cylinder is connected to the corresponding shoe support frame, and the piston rod of the propulsion oil cylinder is connected to the main beam (1) or the inner cover.
4. The main machine of the tunnel boring machine according to claim 1 or 2, characterized in that: The shoe support frame is a rectangular frame structure and is sleeved on the main beam (1) or the inner cover.
5. The main machine of the tunnel boring machine according to claim 1 or 2, characterized in that: Each support shoe mechanism is equipped with at least two propulsion cylinders, and the propulsion cylinders equipped with each support shoe mechanism are distributed on both sides of the main beam (1) or the inner deck.
6. A TBM for inclined shafts, characterized in that: The invention comprises a main machine of a tunnel boring machine and a rear supporting system located at the rear of the main machine of the tunnel boring machine. The main machine of the tunnel boring machine comprises a main beam (1) or an inner frame. At least two shoe support mechanisms are arranged at the rear of the main beam (1) or the inner frame from front to rear. Each shoe support mechanism is equipped with at least one propulsion cylinder. The shoe support mechanism comprises a shoe support frame and a top support structure connected to the shoe support frame for supporting the tunnel wall (13). One end of the propulsion cylinder is connected to the corresponding shoe support frame, and the other end is connected to the main beam (1) or the inner frame. Each propulsion cylinder is a propulsion synchronization cylinder for synchronously propulsing the main beam (1) or the inner frame.
7. The inclined shaft TBM according to claim 6, characterized in that: The thrust cylinder is located on the front side of the corresponding shoe support.
8. The inclined shaft TBM according to claim 6 or 7, characterized in that: The cylinder body of the propulsion oil cylinder is connected to the corresponding shoe support frame, and the piston rod of the propulsion oil cylinder is connected to the main beam (1) or the inner cover.
9. The inclined shaft TBM according to claim 6 or 7, characterized in that: The shoe support frame is a rectangular frame structure and is sleeved on the main beam (1) or the inner cover.
10. The inclined shaft TBM according to claim 6 or 7, characterized in that: Each support shoe mechanism is equipped with at least two propulsion cylinders, and the propulsion cylinders equipped with each support shoe mechanism are evenly distributed in the peripheral direction of the main beam (1) or the inner shell.
Citation Information
Patent Citations
Hydropower station diversion inclined shaft TBM inclined shaft construction system and construction method
CN114876470A
Cited By
Inclined shaft hard rock tunneling main machine, tunneling machine and tunneling method thereof
CN122215765A