Open-type TBM auxiliary gripper shoe device

Abstract

The invention relates to the technical field of TBM auxiliary supporting shoes, and discloses an open type TBM auxiliary supporting shoe device which comprises a main beam, first hydraulic rods are symmetrically and fixedly connected to the outer wall of one side of the main beam, main supporting shoes are fixedly connected to the outer ends of the two first hydraulic rods, and first side face supporting rods are symmetrically hinged to the outer walls of the two main supporting shoes; the other ends of the first side face supporting rods are hinged to the outer wall of the main beam. And an auxiliary supporting mechanism is further included, the auxiliary supporting mechanism comprises two sets of second hydraulic rods, the two sets of second hydraulic rods are fixedly connected to the outer wall of the other side of the main beam, and the second hydraulic rods and the first hydraulic rods are horizontally arranged. Under the counter-acting force of the supporting blocks in the auxiliary supporting shoe mechanism and the interior of a tunnel, the multiple sets of inserting rods can be synchronously driven to rotationally drill the inner wall of the tunnel, so that the tunnel can be better inserted into the inner wall of the tunnel, the friction force between the auxiliary supporting shoe mechanism and the inner wall of the tunnel is conveniently improved, and the overall stability of equipment is guaranteed; and stable support is provided for the propelling mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of TBM auxiliary grippers, and in particular to an open TBM auxiliary gripper device. Background Art

[0002] The main gripper and auxiliary gripper together constitute the gripper device of the tunnel boring machine. They work together to provide the necessary support and stability for the tunnel boring machine. Its main function is to transmit the torque generated by the rotation of the cutterhead to excavate the rock wall and the thrust of the whole machine. The support form of the main beam TBM is horizontal floating support, and the number of grippers is usually two, one on each side.

[0003] In the case of weak and broken surrounding rock, the rock bears less pressure, which requires the shoe area to be large enough to reduce the shoe ground pressure (the contact pressure between the shoe and the surrounding rock). In order to meet the requirements of special geological excavation and prevent the terrain from loosening, auxiliary shoes will be set on the side of the main shoe to strengthen the positioning of the terrain. During the excavation process, the use of the main shoe and the auxiliary shoe can be flexibly adjusted according to the different geological conditions and excavation requirements to achieve the best excavation effect.

[0004] However, when supporting soft and broken surrounding rocks, in existing equipment, when the auxiliary support shoe is in direct contact with the inner wall of the shaft, there is a lack of effective supporting components between the two, resulting in less friction, thereby reducing the use value of the support shoe. Summary of the invention

[0005] In order to solve the technical problem in the background technology that the auxiliary support shoes of the existing equipment have small friction with the inner wall when supporting soft and broken surrounding rocks, thereby reducing the use effect of the support shoes, the present invention provides an open TBM auxiliary support shoe device.

[0006] The present invention is implemented by the following technical scheme: an open-type TBM auxiliary support shoe device, comprising a main beam, a hydraulic rod one is symmetrically fixedly connected to the outer wall of one side of the main beam, and the outer ends of two groups of hydraulic rods one are fixedly connected to the main support shoes, the outer walls of the two groups of main support shoes are symmetrically hinged with side support rods one, and the other ends of the two groups of side support rods one are hinged to the outer wall of the main beam;

[0007] It also includes a secondary support mechanism, which includes two groups of hydraulic rods 2, the two groups of hydraulic rods 2 are fixedly connected to the outer wall of the other side of the main beam, and the hydraulic rods 2 and the hydraulic rods 1 are arranged horizontally, the outer sides of the two groups of hydraulic rods 2 are fixedly connected to the limit plates, the outer walls of the two groups of limit plates are symmetrically hinged with side support rods 2, and the other ends of the two groups of side support rods 2 are hinged to the outer wall of the main beam;

[0008] The limiting mechanism is arranged in the limiting plate, including a supporting assembly and a vibrating assembly, the supporting assembly including supporting blocks that slide symmetrically on both sides of the limiting plate, the outer ends of the two groups of supporting blocks are evenly provided with circular protrusions, the inner sides of the two groups of supporting blocks are fixedly connected with inner plates, the inner walls of one side of the two groups of inner plates are fixedly connected with rack plates 2, the two groups of rack plates 2 are meshed with gears, the middle parts of the two groups of gears are fixedly connected with rotating rods, the middle parts of the two groups of rotating rods are symmetrically rotatably connected with rotating sleeve blocks, the bottom ends of the two groups of rotating sleeve blocks are fixedly connected with the inner wall of the limiting plate, the other sides of the two groups of gears are meshed with rack plates 1, the inner sides of the two groups of rack plates 1 are fixedly connected with movable plates, and the movable plates slide vertically relative to each other in the limiting plate.

[0009] Through the above technical solution, by utilizing the limiting mechanism in the auxiliary support mechanism, the reaction force generated during abutment when contacting the inner wall of the tunnel can be utilized to drive the internal support assembly to start, further puncture and locate the inner wall of the tunnel, and enable the auxiliary support shoe to provide further inward support for the main beam.

[0010] As a further improvement of the above scheme, the limiting mechanism also includes multiple groups of circular protrusions evenly and fixedly connected to the outer end of the limiting plate, the multiple groups of circular protrusions are rotatably connected to the insertion rods, and the outer walls of the multiple groups of insertion rods are provided with guide grooves.

[0011] As a further improvement of the above solution, the top of the limit plate is matched with multiple groups of insertion rods to open multiple groups of movable openings, and round blocks are fixedly connected in the multiple groups of movable openings, and the round blocks are slidably connected to the guide grooves.

[0012] Through the above technical solution, by utilizing the sliding connection between the circular protrusion and the guide groove, when the movable plate is displaced, multiple groups of plungers can be rotated and more easily enter deep into the inner wall of the tunnel, thereby effectively improving friction.

[0013] As a further improvement of the above solution, the middle parts of the inner walls of the two groups of inner plates are fixedly connected with support plates, and the middle parts of the two groups of support plates and the limiting plates are elastically connected with strong springs.

[0014] Through the above technical solution, a strong spring is used to reset the support block and drive the vibration component to move.

[0015] As a further improvement of the above solution, vertical slide bars are symmetrically fixedly connected to the inner wall of the limit plate, and two groups of the vertical slide bars are vertically slidably connected to the two sides of the movable plate.

[0016] The above technical solution is used to ensure stable relative vertical displacement of the movable plate.

[0017] As a further improvement of the above scheme, the vibration components are two groups symmetrically arranged on both sides of the inner wall of the limiting plate, each group of vibration components includes two groups of springs symmetrically fixedly connected to one side of the inner wall of the limiting plate, and the other sides of the two groups of springs are fixedly connected to side plates, the other sides of the two groups of side plates are symmetrically fixedly connected to two groups of cross plates, the other sides of the two groups of cross plates are fixedly connected to impact plates, and the two groups of impact plates are abutted against the side wall of the movable plate, wherein the elasticity of spring two is less than the elasticity of strong spring one.

[0018] Through the above technical solution, the strong spring 1 can push the vibration component to move.

[0019] As a further improvement of the above solution, a push plate is fixedly connected to one side of the impact plate, and the push plate is arranged away from the gear, and the push plate is arranged with a slope near the movable plate.

[0020] Through the above technical solution, it is convenient to better push the push plate to move when the convex rod rotates, and release the elasticity to impact the movable plate after the spring 2 is compressed, so as to vibrate the soil attached to the outer end of the insertion rod and the limit plate.

[0021] As a further improvement of the above scheme, the push plate is slidably abutted against a convex rod near the movable plate, and a circular ring block is fixedly connected to the other side of the convex rod. A plurality of groups of inclined protrusions are evenly and fixedly connected to the inner wall of the circular ring block, and the circular ring block is rotatably connected to the outer wall of the adjacent rotating sleeve block.

[0022] As a further improvement of the above solution, the middle portion of the circular ring block is rotatably connected to the rotating rod, and the outer wall of the rotating rod is located inside the circular ring block and is evenly and fixedly connected with multiple groups of spring sheets.

[0023] As a further improvement of the above solution, multiple groups of spring leaves rotate forward to be slidably connected with one side of the inclined protrusion, and multiple groups of spring leaves rotate backward to abut against the other side of the inclined protrusion.

[0024] Through the above technical solution, by rotating the rotating rod and coordinating the positive and negative connection methods between the spring sheet and the inclined protrusion, the driving ring block can be rotated when the strong spring contracts, and the protruding rod can push the push plate to change its displacement.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The present invention utilizes the support block in the auxiliary support shoe mechanism and the reaction force inside the tunnel to synchronously drive multiple groups of plungers to rotate and drill into the inner wall of the tunnel, so as to better penetrate into the inner wall of the tunnel, thereby facilitating the improvement of the friction between the auxiliary support shoe mechanism and the inner wall of the tunnel, thereby ensuring the overall stability of the equipment and providing stable support for the propulsion mechanism.

[0027] (ii) The present invention utilizes the different effects of the forward and reverse rotation of the spring sheet and the inclined protrusion to perform vibration cleaning on multiple groups of plunger assemblies that have been recovered, thereby ensuring the normal operation of subsequent plunger assemblies, increasing their service life, and reducing the frequency of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the overall structure of an open-type TBM auxiliary gripper device provided in Example 1 of the present invention;

[0029] Figure 2 It is a side cross-sectional structural schematic diagram of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal connection structure of the limiting mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the top view structure of the limiting mechanism of the present invention;

[0032] Figure 5 For the present invention Figure 3 A schematic diagram of the structure enlargement at the center A;

[0033] Figure 6 For the present invention Figure 3 A schematic diagram of the structure enlarged at B in the middle;

[0034] Figure 7 For the present invention Figure 4 Enlarged schematic diagram of the structure at C in the middle.

[0035] Description of main symbols:

[0036] 1. Main beam; 2. Hydraulic rod 1; 3. Main support shoe; 4. Side support rod 1; 5. Hydraulic rod 2; 6. Limit plate; 7. Side support rod 2; 8. Movable plate; 9. Insert rod; 10. Guide groove; 11. Movable opening; 12. Rack plate 1; 13. Gear; 14. Turn rod; 15. Rotating sleeve block; 16. Rack plate 2; 17. Inner plate; 18. Support block; 19. Support plate; 20. Power spring 1; 21. Circular ring block; 22. Oblique protrusion; 23. Spring sheet; 24. Protruding rod; 25. Push plate; 26. Horizontal plate; 27. Side plate; 28. Spring 2; 29. ​​Impact plate. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0038] Example 1: Please combine Figure 1-Figure 5, an open type TBM auxiliary support shoe device of this embodiment comprises a main beam 1, a hydraulic rod 2 is symmetrically fixedly connected to the outer wall of one side of the main beam 1, and the outer ends of two groups of hydraulic rods 2 are fixedly connected to main support shoes 3, and the outer walls of the two groups of main support shoes 3 are symmetrically hinged with side support rods 4, and the other ends of the two groups of side support rods 4 are hinged to the outer wall of the main beam 1;

[0039] It also includes a secondary support mechanism, which includes two groups of hydraulic rods 25, which are fixedly connected to the outer wall of the other side of the main beam 1, and the hydraulic rods 25 and the hydraulic rods 12 are arranged horizontally, and the outer sides of the two groups of hydraulic rods 25 are fixedly connected to the limit plates 6, and the outer walls of the two groups of limit plates 6 are symmetrically hinged with side support rods 27, and the other ends of the two groups of side support rods 27 are hinged to the outer wall of the main beam 1;

[0040] The limiting mechanism is arranged in the limiting plate 6, and includes a supporting assembly and a vibration assembly. The supporting assembly includes supporting blocks 18 that slide symmetrically on both sides of the limiting plate 6. The outer ends of the two groups of supporting blocks 18 are evenly provided with circular protrusions. The inner sides of the two groups of supporting blocks 18 are fixedly connected with inner plates 17. The inner walls of one side of the two groups of inner plates 17 are fixedly connected with rack plates 16. The two groups of rack plates 16 are meshed with gears 13. The middle parts of the two groups of gears 13 are fixedly connected with rotating rods 14. The middle parts of the two groups of rotating rods 14 are symmetrically rotatably connected with rotating sleeve blocks 15. The bottom ends of the two groups of rotating sleeve blocks 15 are fixedly connected to the inner wall of the limiting plate 6. The other sides of the two groups of gears 13 are meshed with rack plates 12. The inner sides of the two groups of rack plates 12 are fixedly connected with movable plates 8. The movable plates 8 slide relatively vertically in the limiting plate 6.

[0041] The limiting mechanism also includes a plurality of groups of circular protrusions evenly and fixedly connected to the outer end of the limiting plate 6, the plurality of groups of circular protrusions are rotatably connected to the insertion rods 9, and the outer walls of the plurality of groups of insertion rods 9 are provided with guide grooves 10.

[0042] The top of the limiting plate 6 matches the multiple groups of insertion rods 9 to form multiple groups of movable openings 11 , and round blocks are fixedly connected in the multiple groups of movable openings 11 , and the round blocks are slidably connected to the guide grooves 10 .

[0043] The middle parts of the inner walls of the two groups of inner plates 17 are fixedly connected with support plates 19, and the middle parts of the two groups of support plates 19 and the limiting plates 6 are elastically connected with strong springs 20.

[0044] The inner wall of the limiting plate 6 is symmetrically fixedly connected with vertical slide bars, and two groups of vertical slide bars are vertically slidably connected with the two sides of the movable plate 8.

[0045] The implementation principle of an open TBM auxiliary shoe device in the embodiment of the present application is:

[0046] Normally, the two groups of hydraulic rods 2 are driven to push the main support shoe 3 to fit the inner wall of the tunnel for support and limitation. When the support friction is insufficient and the auxiliary support shoe is needed for support operation, the two groups of hydraulic rods 2 5 are first driven synchronously to extend and retract outward, and the side support rods 2 7 on both sides follow and support the limit plate 6, so that the two groups of support blocks 18 will contact the inner wall of the tunnel first, and under the reaction force, the two groups of support blocks 18 slide in the opposite direction, and then when the support blocks 18 slide, the inner plate 17 will be driven to move, and under the meshing connection of the inner plate 17, the gear 13 and the rack plate 12, the entire movable plate 8 can be displaced and slid toward the inner wall of the tunnel under the action of the vertical slide bar.

[0047] As the movable plate 8 moves, the multiple groups of rods 9 are driven to move synchronously toward the inner wall of the tunnel, the multiple groups of rods 9 can rotate synchronously due to the sliding of the round block at the movable opening 11 and the guide groove 10, and can better penetrate the inner wall of the tunnel and further provide stable support for the main beam 1 to advance the operation.

[0048] Example 2: Combination Figure 2 and Figure 3 as well as Figure 6 and Figure 7 Based on Example 1, this embodiment is further improved in that:

[0049] The vibration components are two groups symmetrically arranged on both sides of the inner wall of the limit plate 6, and each group of vibration components includes two groups of springs 28 symmetrically fixedly connected to one side of the inner wall of the limit plate 6, and the other sides of the two groups of springs 28 are fixedly connected to the side plates 27, and the other sides of the two groups of side plates 27 are symmetrically fixedly connected to two groups of cross plates 26, and the other sides of the two groups of cross plates 26 are fixedly connected to impact plates 29, and the two groups of impact plates 29 are abutted against the side walls of the movable plate 8.

[0050] A push plate 25 is fixedly connected to one side of the impact plate 29 , and the push plate 25 is arranged away from the gear 13 , and the push plate 25 is arranged with a slope near the movable plate 8 .

[0051] The push plate 25 is slidably abutted against a convex rod 24 near the movable plate 8, and a circular ring block 21 is fixedly connected to the other side of the convex rod 24. The inner wall of the circular ring block 21 is evenly fixedly connected with multiple groups of inclined protrusions 22, and the circular ring block 21 is rotatably connected to the outer wall of the adjacent rotating sleeve block 15.

[0052] The middle part of the circular ring block 21 is rotatably connected to the rotating rod 14 , and the outer wall of the rotating rod 14 is located inside the circular ring block 21 and is evenly and fixedly connected with multiple groups of spring sheets 23 .

[0053] The multiple groups of spring leaves 23 rotate forward to be slidably connected with one side of the inclined protrusion 22 , and the multiple groups of spring leaves 23 rotate backward to abut against the other side of the inclined protrusion 22 .

[0054] The implementation principle of an open TBM auxiliary shoe device in the embodiment of the present application is:

[0055] When the support block 18 is displaced under the reaction force, the rotation of the rotating rod 14 drives the spring sheet 23 and the inclined protrusion 22 to be in a sliding connection state, so that the circular ring block 21 will not rotate. When the auxiliary support shoe mechanism completes the supporting operation, the hydraulic rod 25 and the side support rod 27 are adaptively contracted, and the two groups of support blocks 18 can be pushed back to their original positions under the elastic potential energy of the two groups of strong springs 1 20, and the rotating rod 14 is driven to rotate in the opposite direction under the meshing connection between the rack plate 2 16 and the gear 13. At this time, the spring sheet 23 can abut against the inclined protrusion 22 under the rotation of the rotating rod 14, and push the circular ring block 21 and the rotating sleeve block 15 to rotate under the rotation connection, and drive the convex rod 24 to intermittently push the push plate 25 to slide outward, and shrink as the two groups of springs 28 slide outward. Finally, when the convex rod 24 is released from the sliding contact with the push plate 25, the elastic potential energy of the spring 28 is released to push the impact plate 29 to impact the movable plate 8, thereby vibrating the soil adhering to the recovered plug rod 9.

[0056] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An open type TBM auxiliary gripper device, comprising: A main beam, wherein a hydraulic rod 1 is symmetrically fixedly connected to the outer wall of one side of the main beam, and the outer ends of two groups of hydraulic rods 1 are fixedly connected to main support shoes, and the outer walls of the two groups of main support shoes are symmetrically hinged with side support rods 1, and the other ends of the two groups of side support rods 1 are hinged to the outer wall of the main beam; It is characterized by further comprising: A secondary support mechanism, the secondary support mechanism includes two groups of hydraulic rods 2, the two groups of hydraulic rods 2 are fixedly connected to the outer wall of the other side of the main beam, and the hydraulic rods 2 and the hydraulic rods 1 are arranged horizontally, the outer sides of the two groups of hydraulic rods 2 are fixedly connected to the limit plates, the outer walls of the two groups of limit plates are symmetrically hinged with side support rods 2, and the other ends of the two groups of side support rods 2 are hinged to the outer wall of the main beam; The limiting mechanism is arranged in the limiting plate, including a supporting assembly and a vibrating assembly, the supporting assembly including supporting blocks that slide symmetrically on both sides of the limiting plate, the outer ends of the two groups of supporting blocks are evenly provided with circular protrusions, the inner sides of the two groups of supporting blocks are fixedly connected with inner plates, the inner walls of one side of the two groups of inner plates are fixedly connected with rack plates 2, the two groups of rack plates 2 are meshed with gears, the middle parts of the two groups of gears are fixedly connected with rotating rods, the middle parts of the two groups of rotating rods are symmetrically rotatably connected with rotating sleeve blocks, the bottom ends of the two groups of rotating sleeve blocks are fixedly connected with the inner wall of the limiting plate, the other sides of the two groups of gears are meshed with rack plates 1, the inner sides of the two groups of rack plates 1 are fixedly connected with movable plates, and the movable plates slide vertically relative to each other in the limiting plate.

2. An open type TBM auxiliary gripper device according to claim 1, characterized in that: The limiting mechanism also includes a plurality of groups of circular protrusions evenly and fixedly connected to the outer ends of the limiting plates, the plurality of groups of circular protrusions are rotatably connected to plug rods, and the outer walls of the plurality of groups of plug rods are provided with guide grooves.

3. An open type TBM auxiliary gripper device according to claim 2, characterized in that: The top of the limit plate is matched with multiple groups of insertion rods to form multiple groups of movable openings, and round blocks are fixedly connected in the multiple groups of movable openings, and the round blocks are slidably connected to the guide grooves.

4. The open type TBM auxiliary gripper device according to claim 1, characterized in that: The middle parts of the inner walls of the two groups of inner plates are fixedly connected with support plates, and the middle parts of the two groups of support plates and the limiting plates are elastically connected with strong springs 1.

5. The open type TBM auxiliary gripper device according to claim 3, characterized in that: The inner wall of the limit plate is symmetrically fixedly connected with vertical slide bars, and two groups of the vertical slide bars are vertically slidably connected with the two sides of the movable plate.

6. The open type TBM auxiliary gripper device according to claim 1, characterized in that: The vibration components are symmetrically arranged in two groups on both sides of the inner wall of the limiting plate, and each group of vibration components includes two groups of springs symmetrically fixedly connected to one side of the inner wall of the limiting plate, and the other sides of the two groups of springs are fixedly connected to the side plates, the other sides of the two groups of side plates are symmetrically fixedly connected to two groups of cross plates, the other sides of the two groups of cross plates are fixedly connected to impact plates, and the two groups of impact plates are in contact with the side walls of the movable plate.

7. An open type TBM auxiliary gripper device according to claim 6, characterized in that: A push plate is fixedly connected to one side of the impact plate, and the push plate is arranged far away from the gear, and the push plate is arranged with a slope near the movable plate.

8. An open type TBM auxiliary gripper device according to claim 7, characterized in that: The push plate is slidably abutted against a convex rod near the movable plate, and a circular ring block is fixedly connected to the other side of the convex rod. The inner wall of the circular ring block is evenly fixedly connected with multiple groups of oblique protrusions, and the circular ring block is rotatably connected to the outer wall of the adjacent rotating sleeve block.

9. An open type TBM auxiliary gripper device according to claim 8, characterized in that: The middle part of the circular ring block is rotatably connected to the rotating rod, and the outer wall of the rotating rod is located inside the circular ring block and is evenly and fixedly connected with multiple groups of spring sheets.

10. An open type TBM auxiliary gripper device according to claim 9, characterized in that: A plurality of groups of spring sheets rotate forward to be slidably connected with one side of the inclined protrusion, and a plurality of groups of spring sheets rotate backward to abut against the other side of the inclined protrusion.

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