A vibration damping base for a tunneling machine and its vibration control method

Abstract

This invention discloses a shock-absorbing base for a tunneling machine and its shock-absorbing control method. The shock-absorbing base includes a fixed support plate installed at the bottom of a cantilever tunneling machine. Below the fixed support plate, from top to bottom, are a fixed mounting plate, a support base, and a suspension. This invention uses a shock-absorbing base installed at the bottom of a cantilever tunneling machine, lowering its bottom to the ground during operation. The resulting swaying is absorbed by the shock-absorbing mechanism, and its height can be adjusted in real time according to actual working conditions. It is guided by a guide mechanism and ground rails. When the buffer spring is compressed, the resulting force is partially offset, thus reducing the swaying amplitude during tunneling machine operation and increasing the stability of the tunneling machine on the base. Furthermore, when the support force at the bottom of the shock-absorbing base is insufficient, the height can be adjusted to ensure the shock-absorbing effect of the base. Both stability and safety are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical vibration reduction technology, and in particular to a vibration reduction base for a tunneling machine and its vibration reduction control method. Background Technology

[0002] The cutting stability of a tunneling machine (TBM) is crucial. Adding a vibration-damping base to the TBM chassis ensures smooth tunneling operations. In the complex and ever-changing underground environment, its unique design and materials effectively absorb and disperse vibrations and impacts generated during tunneling. The superior performance of the vibration-damping base not only significantly improves the stability and service life of the TBM but also drastically reduces noise levels during operation, providing a more comfortable working environment for operators. Furthermore, by reducing the impact of vibration on precision components, it indirectly improves the machining accuracy and efficiency of the TBM, playing an irreplaceable role in ensuring smooth tunneling operations and enhancing overall operational efficiency.

[0003] In existing technologies, the operational stability of tunneling machines (TBMs) under complex geological conditions is often challenged, especially when operating in hard rock or unstable strata. Vibration of the machine not only affects tunneling efficiency but can also threaten equipment and personnel safety. For TBM vibration damping bases and their control methods, lifting and lowering actions are performed according to the TBM's operating conditions and the support force provided by the ground. Due to the rigid programming of the vibration damping technology and the lack of awareness of surrounding conditions, it cannot continue to perform its tasks in the event of an emergency, resulting in poor vibration damping performance. When using TBMs to cut coal face, they are equipped with bases for fixed support. However, the TBM inevitably sways during operation, which affects the bottom support of the TBM, causing a lack of stability in the overall machine operation.

[0004] Therefore, it is necessary to develop a vibration damping base for tunneling machines and its vibration control method to solve the above problems. Summary of the Invention

[0005] This invention provides a vibration damping base for a tunneling machine and a vibration damping control method thereof to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tunneling machine vibration damping base includes a tunneling machine fixed support plate installed at the bottom of a cantilever tunneling machine. A fixed plate, a support base, and a suspension are arranged sequentially from top to bottom below the tunneling machine fixed support plate. The fixed plate, the support base, and the suspension are all coaxially distributed with the tunneling machine fixed support plate. Support legs are fixedly connected to both sides of the support base.

[0008] The support base is rotatably connected to the fixed plate, and a drive mechanism is installed on the fixed plate to make the support base and the fixed plate rotate relative to each other.

[0009] A shock-absorbing mechanism is provided between the fixed mounting plate and the fixed support plate of the tunneling machine to provide buffering when the cantilever tunneling machine is positioned and supported.

[0010] The suspension is equipped with a guiding mechanism to guide the cantilever tunneling machine along a preset trajectory during operation, thereby improving the stability of the cantilever tunneling machine during operation.

[0011] As a further improvement to this technical solution: a positioning shaft is fixedly connected to the center of the support base, and a positioning hole matching the positioning shaft is opened at the center of the fixed plate. An annular groove is opened at the top of the support base, and an annular block is embedded in and slidably connected to the annular groove. The annular block is fixedly connected to the fixed plate, so that the fixed plate can rotate stably on the support base.

[0012] As a further improvement to this technical solution: the driving mechanism includes a drive motor fixed on a fixed mounting plate. The output shaft of the drive motor is connected to a drive gear. The positioning shaft extends to the top of the fixed mounting plate and is fitted with a washer. The top of the positioning shaft is provided with a driven gear that meshes with the drive gear. A one-way bearing is provided between the driven gear and the positioning shaft. When actively driven, the output shaft of the drive motor drives the drive gear, causing the driven gear and the positioning shaft to rotate, thereby driving the bottom support base to twist to adapt to trajectory changes. During travel, if the drive motor is not started, auxiliary direction change is performed, that is, the one-way bearing enables the driven gear and the positioning shaft to rotate in one direction, facilitating automatic angle adjustment during flexible movement.

[0013] As a further improvement to this technical solution: the shock absorption mechanism includes multiple hydraulic shock absorbers arranged in a ring array, and multiple first hydraulic cylinders arranged in a ring array are fixedly connected to the top of the fixed support plate. The multiple hydraulic shock absorbers are fixed one-to-one with the output ends of the multiple first hydraulic cylinders. The top of the hydraulic shock absorber is detachably installed from the fixed support plate of the tunneling machine, which facilitates the disassembly and maintenance of the tunneling machine shock absorption base.

[0014] As a further improvement to this technical solution: the outer side of the tunneling machine fixed support plate is integrally provided with a pocket plate, and the inner side of the pocket plate is fixedly connected with a plurality of second hydraulic cylinders arranged in a ring array. The tunneling machine fixed support plate has a plurality of through holes matching the second hydraulic cylinders. The output end of the second hydraulic cylinder is fixedly connected with a plate, and the plate is detachably installed from the cantilever tunneling machine by bolts.

[0015] As a further improvement to this technical solution: the guiding mechanism includes guide piles fixed on both sides of the suspension. A buffer pad is fixedly connected to the top of the guide pile. A T-shaped groove is opened on the outer side of the guide pile, and a T-shaped block is slidably connected in the T-shaped groove. A guide clamp is fixedly connected to the outer side of the T-block. A screw rod is provided in the T-shaped groove and is rotatably connected to the guide pile. The screw rod passes through the T-shaped block and is threadedly connected to the through hole. A ground rail is installed in the guiding space formed between the two sets of guide piles and the guide clamp. By rotating the screw rod, the T-shaped block moves in the T-shaped groove, thereby driving the guide clamp to rise and fall, adjusting the size of the guiding space, and facilitating the positioning and installation of the guiding mechanism and the ground rail.

[0016] As a further improvement to this technical solution: multiple storage cylinders are fixedly connected to the bottom of the support base, and a sliding rod is movably connected inside the storage cylinder. A buffer spring is sleeved on the inner side of the sliding rod and the bottom end of the sliding rod is fixedly connected to the suspension, which facilitates the adjustment and buffering of the guiding mechanism and allows the guiding mechanism to better cooperate with the ground rail.

[0017] As a further improvement to this technical solution: a distance sensor is installed at the bottom of the fixed support plate of the tunneling machine to sense the distance between the fixed support plate and the fixed support plate of the tunneling machine; a pressure sensor is installed at the bottom of the support leg; and an alarm is installed on the support leg.

[0018] The tunneling machine's vibration damping base also includes a control system, which includes a controller and a sensing module. The sensing module is used to collect working face information of the tunneling face and obtain ground track information.

[0019] The sensing module includes a camera unit, an inertial navigation unit, and a ranging radar unit;

[0020] The first hydraulic cylinder and the second hydraulic cylinder are both equipped with hydraulic drive mechanisms for providing kinetic energy at their connection ends. The input and output ends of the controller are electrically connected to an A / D converter and a D / A converter, respectively. The ranging sensor, pressure sensor and sensing module are all electrically connected to the A / D converter. The alarm, drive motor and hydraulic drive mechanism are all electrically connected to the D / A converter.

[0021] A vibration control method for a tunneling machine vibration damping base includes the following steps:

[0022] S1. Before the cantilever tunneling machine stops moving to cut, issue a command to lower the tunneling machine's shock-absorbing base;

[0023] S2. The controller controls multiple second hydraulic cylinders to extend synchronously through the hydraulic drive mechanism, so that the bottom of the tunneling machine's shock-absorbing base contacts the ground. With the cooperation of the pressure sensor, after the pressure information reaches the appropriate range, the guide mechanism is combined with the ground rail for travel guidance.

[0024] S3. The cantilever tunneling machine begins drilling or lateral movement. During this process, the pressure sensor continuously senses and feeds back pressure information. Based on the pressure fluctuation value sensed by the pressure sensor, the controller controls multiple first hydraulic cylinders to extend and retract synchronously through the hydraulic drive mechanism. This is further coordinated with the distance sensor and hydraulic shock absorber for secondary lifting and lowering operations for adjustment.

[0025] S4. If the pressure sensor detects that the pressure is again outside the normal range, the controller will control the alarm to issue an alarm signal and communicate with the control host of the cantilever tunneling machine to disconnect the corresponding shock-absorbing base running system and gradually shut down the cantilever tunneling machine.

[0026] S5. Inspect the cause of the fault and perform troubleshooting and maintenance. After maintenance, return to S1 and continue the startup process.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] The shock-absorbing base is installed at the bottom of the cantilever tunneling machine. During operation, its bottom end is lowered to the ground. The swaying generated during operation is absorbed by the shock-absorbing mechanism, and its height can be adjusted in real time according to the actual working conditions. It works in conjunction with the guide mechanism and ground rail for guidance. When the buffer spring is compressed, the force generated is partially offset, thereby reducing the swaying amplitude generated during tunneling machine operation and increasing the stability of the tunneling machine on the base. Furthermore, when the support force at the bottom of the shock-absorbing base is insufficient, the height can be adjusted to ensure the shock absorption effect of the shock-absorbing base. Both stability and safety are significantly improved. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a first-view perspective perspective view of the tunneling machine vibration damping base proposed in this invention;

[0031] Figure 2 This is a second-view perspective view of the tunneling machine vibration damping base proposed in this invention.

[0032] Figure 3 This is a front view of the tunneling machine vibration damping base proposed in this invention;

[0033] Figure 4 This is a left view of the tunneling machine vibration damping base proposed in this invention;

[0034] Figure 5 For the present invention Figure 3 A schematic diagram of the AA cross-sectional structure shown;

[0035] Figure 6 For the present invention Figure 4 A schematic diagram of the BB cross-sectional structure shown;

[0036] Figure 7 For the present invention Figure 3 First-view perspective perspective of the AA-direction section structure shown in the diagram;

[0037] Figure 8 For the present invention Figure 3 A second-view perspective perspective of the AA-direction section structure shown in the diagram;

[0038] Figure 9 For the present invention Figure 4 A three-dimensional view of the BB-direction section of the structure shown.

[0039] Figure 10 This is a diagram showing the effect of the shock-absorbing base for tunneling machines proposed in this invention on a cantilever tunneling machine.

[0040] Figure 11 This is a system control flowchart of the vibration control method for the tunneling machine vibration damping base proposed in this invention.

[0041] In the picture:

[0042] Tunneling machine fixed support plate-1; fixed ramp plate-2; support base-3; suspension-4; support leg-5; drive mechanism-6; cantilever tunneling machine-7; shock absorption mechanism-8; guide mechanism-9; positioning shaft-10; ring block-11; sump plate-12; second hydraulic cylinder-13; mounting plate-14; ground rail-15; storage cylinder-16; slide bar-17; buffer spring-18; distance sensor-19; pressure sensor-20; alarm-21; controller-22; sensing module-23;

[0043] Drive motor - 601; Drive gear - 602; Shim - 603; Driven gear - 604; One-way bearing - 605;

[0044] Hydraulic shock absorber-801; First hydraulic cylinder-802;

[0045] Guide post-901; buffer pad-902; T-slot-903; T-block-904; guide clamp-905; screw rod-906. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0047] In the description of this invention, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this invention. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of this invention.

[0048] like Figure 1-11 As shown, a tunneling machine vibration damping base includes a tunneling machine fixed support plate 1 installed at the bottom of a cantilever tunneling machine 7. A fixed mounting plate 2, a support base 3, and a suspension 4 are arranged sequentially from top to bottom below the tunneling machine fixed support plate 1. The fixed mounting plate 2, the support base 3, and the suspension 4 are all coaxially distributed with the tunneling machine fixed support plate 1. Support legs 5 are fixedly connected to both sides of the support base 3, and the support legs 5 support the tunneling machine vibration damping base.

[0049] The support base 3 is rotatably connected to the fixed plate 2, and the fixed plate 2 is equipped with a drive mechanism 6 for making the support base 3 and the fixed plate 2 rotate relative to each other.

[0050] A shock-absorbing mechanism 8 is provided between the fixed support plate 2 and the fixed support plate 1 of the tunneling machine, which is used to buffer the cantilever tunneling machine 7 when it is positioned and supported;

[0051] The suspension 4 is equipped with a guide mechanism 9, which is used to guide the cantilever tunneling machine 7 to travel along a preset trajectory during operation.

[0052] As a further improvement to this technical solution: a positioning shaft 10 is fixedly connected at the center of the support base 3, and a positioning hole matching the positioning shaft 10 is opened at the center of the fixed plate 2. An annular groove is opened at the top of the support base 3, and an annular block 11 is embedded in and slidably connected to the annular groove, and the annular block 11 is fixedly connected to the fixed plate 2.

[0053] As a further improvement to this technical solution: the drive mechanism 6 includes a drive motor 601 fixed on the fixed mounting plate 2. The output shaft of the drive motor 601 is connected to a drive gear 602. The positioning shaft 10 extends to the top of the fixed mounting plate 2 and is fitted with a gasket 603. The top of the positioning shaft 10 is provided with a driven gear 604 that meshes with the drive gear 602. A one-way bearing 605 is provided between the driven gear 604 and the positioning shaft 10.

[0054] As a further improvement to this technical solution: the shock absorption mechanism 8 includes multiple hydraulic shock absorbers 801 arranged in a ring array, and multiple first hydraulic cylinders 802 arranged in a ring array are fixedly connected to the top of the fixed support plate 2. The multiple hydraulic shock absorbers 801 are fixed one-to-one with the output ends of the multiple first hydraulic cylinders 802. The top of the hydraulic shock absorber 801 is detachably installed from the fixed support plate 1 of the tunneling machine.

[0055] As a further improvement to this technical solution: a pocket plate 12 is integrally provided on the outer side of the tunneling machine fixed support plate 1, and multiple second hydraulic cylinders 13 arranged in a ring array are fixedly connected to the inner side of the pocket plate 12. Multiple through holes matching the second hydraulic cylinders 13 are passed through the tunneling machine fixed support plate 1. A plate 14 is fixedly connected to the output end of the second hydraulic cylinder 13, and the plate 14 and the cantilever tunneling machine 7 can be detachably installed by bolts.

[0056] As a further improvement to this technical solution: the guiding mechanism 9 includes guide piles 901 fixed on both sides of the suspension 4. A buffer pad 902 is fixedly connected to the top of the guide pile 901. A T-shaped groove 903 is opened on the outer side of the guide pile 901, and a T-shaped block 904 is slidably connected in the T-shaped groove 903. A guide clamp 905 is fixedly connected to the outer side of the T-shaped block 904. A screw rod 906 is provided in the T-shaped groove 903 and is rotatably connected to the guide pile 901. The screw rod 906 passes through the T-shaped block 904 and is threadedly connected to the through hole. A ground rail 15 is installed in the guiding space formed between the two sets of guide piles 901 and the guide clamp 905.

[0057] As a further improvement to this technical solution: multiple storage cylinders 16 are fixedly connected to the bottom of the support base 3, and a sliding rod 17 is movably connected inside the storage cylinder 16. A buffer spring 18 is sleeved on the inner side of the sliding rod 17 and the bottom end of the sliding rod 17 is fixedly connected to the suspension 4.

[0058] As a further improvement to this technical solution: a distance sensor 19 is installed at the bottom of the fixed support plate 1 of the tunneling machine to sense the distance between the fixed support plate 2 and the fixed support plate 1 of the tunneling machine; a pressure sensor 20 is installed at the bottom of the support leg 5; and an alarm 21 is installed on the support leg 5. The alarm 21 can issue a warning to prevent unauthorized personnel from approaching and causing injury when there is a safety hazard.

[0059] The tunneling machine vibration damping base also includes a control system, which includes a controller 22 and a sensing module 23. The sensing module 23 is used to collect working face information of the tunneling face and obtain trajectory information of the ground rail 15.

[0060] The control system in this embodiment can acquire information from the pressure sensor 20 through the sensing module 23, and remotely control the tunneling machine's vibration damping base by cooperating with the remote terminal through the controller 22. The system is simple to build and easy to design and implement.

[0061] The sensing module 23 includes a camera unit, an inertial navigation unit, and a ranging radar unit. The camera unit includes a camera to collect trajectory information of the ground track 15. The inertial navigation unit includes an accelerometer, a gyroscope, and an inertial navigation controller, configured to receive and process acceleration, angular velocity, and direction information monitored by the accelerometer and gyroscope. The ranging radar unit includes multiple ultrasonic ranging radar probes mounted on the tunneling machine body to monitor the distance between the tunneling machine body and the working environment. Specifically, the inertial navigation unit used in this embodiment... As a current inertial navigation device, it uses its internal accelerometers and gyroscopes to collect real-time acceleration and angular velocity data of the tunnel boring machine in three-dimensional space. Based on the filtering, integration, and calculation algorithms built into the inertial navigation device, the inertial navigation unit can provide high position and attitude measurement accuracy. It can be understood that through the inertial navigation unit and the ranging radar unit, navigation function can be achieved without relying on external signal sources, and data can be collected and processed in real time to realize real-time detection of the tunnel boring machine's position and attitude. It has high reliability, good stability, and is conducive to design and implementation.

[0062] The connection ends of the first hydraulic cylinder 802 and the second hydraulic cylinder 13 are both equipped with hydraulic drive mechanisms for providing kinetic energy. The input and output ends of the controller 22 are electrically connected to an A / D converter and a D / A converter, respectively. The ranging sensor 19, the pressure sensor 20, and the sensing module 23 are all electrically connected to the A / D converter. The alarm 21, the drive motor 601, and the hydraulic drive mechanism are all electrically connected to the D / A converter.

[0063] The tunneling machine control system in this embodiment includes two control methods: local control of the tunneling machine via controller 22 and remote control of the tunneling machine via remote terminal. Both of these control methods can achieve independent control of the tunneling machine.

[0064] In addition, as a preferred embodiment, the remote terminal in this example includes an operation interface, which comprises a remote monitoring interface, a sensor interface, a cutting condition monitoring interface, a remote control interface, and a voice communication interface. The operation interface is used to control the tunneling machine's actions via the controller 22 and to display the collected sensor information.

[0065] A vibration control method for a tunneling machine vibration damping base includes the following steps:

[0066] S1. Before the cantilever tunneling machine 7 stops moving to cut, issue a command to lower the tunneling machine's shock-absorbing base;

[0067] S2, the controller 22 controls multiple second hydraulic cylinders 13 to extend synchronously through the hydraulic drive mechanism, so that the bottom of the tunneling machine's shock-absorbing base contacts the ground. With the cooperation of the pressure sensor 20, after the pressure information is fed back to a suitable range, the guide mechanism 9 and the ground rail 15 are combined and installed for travel guidance.

[0068] S3. The cantilever tunneling machine 7 begins drilling or lateral movement. During this process, the pressure sensor 20 continuously senses and feeds back pressure information. The controller 22 controls multiple first hydraulic cylinders 802 to extend and retract synchronously through the hydraulic drive mechanism based on the pressure fluctuation value sensed by the pressure sensor 20. This is further coordinated with the distance sensor 19 and the hydraulic shock absorber 801 for secondary lifting and lowering operations for adjustment.

[0069] S4. If the pressure sensor 20 senses that the pressure is again outside the normal range, the controller 22 controls the alarm 21 to issue an alarm signal and communicates with the control host of the cantilever tunneling machine 7 to disconnect the corresponding shock-absorbing base running system and gradually shut down the cantilever tunneling machine 7.

[0070] S5. Inspect the cause of the fault and perform troubleshooting and maintenance. After maintenance, return to S1 and continue the startup process.

[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Those skilled in the art can readily implement the present invention based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the present invention, using the disclosed technical content, are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, or variations made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the present invention.

Claims

1. A vibration damping base for a tunneling machine, comprising a tunneling machine fixed support plate (1) installed at the bottom of a cantilever tunneling machine (7), characterized in that, The fixed support plate (1) of the tunneling machine is provided with a fixed plate (2), a support base (3) and a suspension (4) arranged from top to bottom below it. The fixed plate (2), the support base (3) and the suspension (4) are all coaxially distributed with the fixed support plate (1) of the tunneling machine. The support base (3) is fixedly connected to support legs (5) on both sides. The support base (3) is rotatably connected to the fixed plate (2), and a drive mechanism (6) is installed on the fixed plate (2) to make the support base (3) and the fixed plate (2) rotate relative to each other; A shock-absorbing mechanism (8) is provided between the fixed support plate (2) and the fixed support plate (1) of the tunneling machine, which is used to buffer the cantilever tunneling machine (7) when it is positioned and supported; The suspension (4) is equipped with a guide mechanism (9) for guiding the cantilever tunneling machine (7) along a preset trajectory during operation; The tunneling machine fixed support plate (1) is integrally provided with a pocket plate (12) on the outside, and a plurality of second hydraulic cylinders (13) arranged in a ring array are fixedly connected to the inside of the pocket plate (12). The tunneling machine fixed support plate (1) has a plurality of through holes matching the second hydraulic cylinders (13). The output end of the second hydraulic cylinder (13) is fixedly connected to a plate (14), and the plate (14) and the cantilever tunneling machine (7) can be detachably installed by bolts. The guiding mechanism (9) includes guide posts (901) fixed on both sides of the suspension (4). A buffer pad (902) is fixedly connected to the top of the guide post (901). A T-shaped groove (903) is opened on the outside of the guide post (901), and a T-shaped block (904) is slidably connected in the T-shaped groove (903). A guide clamp (905) is fixedly connected to the outside of the T-shaped block (904). A screw rod (906) is provided in the T-shaped groove (903) and is rotatably connected to the guide post (901). The screw rod (906) passes through the T-shaped block (904) and is threadedly connected to the through hole. A ground rail (15) is installed in the guiding space formed between the two sets of guide posts (901) and the guide clamp (905). The bottom of the support base (3) is fixedly connected to a plurality of storage tubes (16), and a sliding rod (17) is movably connected inside the storage tube (16). A buffer spring (18) is sleeved on the inner side of the sliding rod (17) and the bottom end of the sliding rod (17) is fixedly connected to the suspension (4).

2. The tunneling machine vibration damping base according to claim 1, characterized in that, The support base (3) is fixedly connected to a positioning shaft (10) at its axis, and the fixed plate (2) has a positioning hole that matches the positioning shaft (10) at its axis. The support base (3) has an annular groove at its top, and an annular block (11) is embedded in and slidably connected to it. The annular block (11) is fixedly connected to the fixed plate (2).

3. The tunneling machine vibration damping base according to claim 2, characterized in that, The drive mechanism (6) includes a drive motor (601) fixed on the fixed plate (2). The output shaft of the drive motor (601) is connected to a drive gear (602). The positioning shaft (10) extends to the top of the fixed plate (2) and is fitted with a gasket (603). The top of the positioning shaft (10) is provided with a driven gear (604) that meshes with the drive gear (602). A one-way bearing (605) is provided between the driven gear (604) and the positioning shaft (10).

4. The tunneling machine vibration damping base according to claim 3, characterized in that, The shock absorption mechanism (8) includes multiple hydraulic shock absorbers (801) arranged in a ring array. Multiple first hydraulic cylinders (802) arranged in a ring array are fixedly connected to the top of the fixed support plate (2). The multiple hydraulic shock absorbers (801) are fixed one-to-one with the output end of the multiple first hydraulic cylinders (802). The top of the hydraulic shock absorber (801) is detachably installed from the fixed support plate (1) of the tunneling machine.

5. A tunneling machine vibration damping base according to claim 4, characterized in that, The bottom of the tunneling machine fixed support plate (1) is equipped with a distance sensor (19) for sensing the distance between the fixed support plate (2) and the tunneling machine fixed support plate (1). The bottom of the support leg (5) is equipped with a pressure sensor (20) and an alarm (21) is installed on the support leg (5).

6. A vibration damping base for a tunneling machine according to claim 5, characterized in that, It also includes a control system, which includes a controller (22) and a sensing module (23). The sensing module (23) is used to collect working face information of the tunneling face and obtain track information of the ground rail (15). The sensing module (23) includes a camera unit, an inertial navigation unit, and a ranging radar unit; The first hydraulic cylinder (802) and the second hydraulic cylinder (13) are both provided with hydraulic drive mechanisms for providing kinetic energy at their connection ends. The input and output ends of the controller (22) are electrically connected to an A / D converter and a D / A converter, respectively. The ranging sensor (19), the pressure sensor (20) and the sensing module (23) are all electrically connected to the A / D converter. The alarm (21), the drive motor (601) and the hydraulic drive mechanism are all electrically connected to the D / A converter.

7. The vibration control method for a tunneling machine vibration damping base according to claim 6, characterized in that, Includes the following steps: S1. Before the cantilever tunneling machine (7) stops moving to cut, it issues a command to lower the tunneling machine's shock-absorbing base; S2. The controller (22) controls multiple second hydraulic cylinders (13) to extend synchronously through the hydraulic drive mechanism, so that the bottom of the tunneling machine's shock-absorbing base contacts the ground. Under the sensing and cooperation of the pressure sensor (20), after the feedback pressure information reaches a suitable range, the guide mechanism (9) and the ground rail (15) are combined and installed for travel guidance. S3. The cantilever tunneling machine (7) begins drilling or lateral movement. During the process, the pressure sensor (20) continuously senses and feeds back pressure information. The controller (22) controls multiple first hydraulic cylinders (802) to extend and retract synchronously through the hydraulic drive mechanism based on the pressure fluctuation value sensed by the pressure sensor (20). It further coordinates with the distance sensor (19) and the hydraulic shock absorber (801) for secondary lifting and lowering operation to make adjustments. S4. If the pressure sensor (20) senses that the pressure is abnormal again, the controller (22) controls the alarm (21) to issue an alarm signal and communicates with the control host of the cantilever tunneling machine (7) to cut off the corresponding shock-absorbing base running system and gradually shut down the cantilever tunneling machine (7). S5. Inspect the cause of the fault and perform troubleshooting and maintenance. After maintenance, return to S1 and continue the startup process.

Images