Anti-rolling device of shield tunneling machine

By designing a shield machine anti-rolling device including multiple adjustment devices, the correcting cylinder drives the arc-shaped connecting plate and the cylinder fixing ring to control the angle and posture of the auxiliary push cylinder, the problem of the shield body easily rolling is solved, and the stability and cost-effectiveness are improved.

CN223048809UActive Publication Date: 2025-07-01WUHAN POWER EQUIP WORKS
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Patent Information

Application Number
CN202422287167.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-19
Publication Date
2025-07-01
Estimated Expiration
2034-09-19

AI Technical Summary

Technical Problem

The existing shields are prone to rolling, and the existing anti-rolling structure is costly, complex control methods and easily cause the propulsion cylinder to be stuck.

Method used

A shield mechanism anti-rolling device including multiple adjustment devices is designed. Each adjustment device consists of an arc-shaped connecting plate, a cylinder fixing ring and an auxiliary pushing cylinder. By correcting the oil cylinder, the arc-shaped connecting plate and the oil cylinder fixing ring are driven to rotate, and the angle and attitude of the auxiliary pushing cylinder are controlled to balance the torque caused by the reaction force of the cutter plate.

Benefits of technology

The stability of the shield machine is achieved, the rolling phenomenon is avoided, the control method is simple, the cost is low, and the maintenance is convenient.

✦ Generated by Eureka AI based on patent content.

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Abstract

An anti-rolling device of a shield tunneling machine comprises a plurality of adjusting devices, the adjusting devices are arranged in the circumferential direction of a shield body of the shield tunneling machine, each adjusting device comprises a circular-arc-shaped connecting plate and at least one oil cylinder fixing ring, and the circular-arc-shaped connecting plates can rotate with the central axis of the shield body of the shield tunneling machine as the center. The arc-shaped connecting plate is fixedly connected with the bottom of the oil cylinder fixing ring, a mounting hole is formed in the middle of the oil cylinder fixing ring, a baffle is fixedly arranged on the front portion of the oil cylinder fixing ring and matched with the outer wall of a cylinder body of the auxiliary pushing oil cylinder in a limiting mode, the front end of the cylinder body of the auxiliary pushing oil cylinder is located in the mounting hole, and the rear end of the cylinder body of the auxiliary pushing oil cylinder is hinged to a shield body of the shield tunneling machine. According to the design, shield body rolling caused by counter-acting force generated in the cutterhead operation process can be avoided, the structure is reliable, and the control mode is simple.
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Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering machinery, in particular to an anti-rolling device for a shield machine, and specifically applicable to preventing the shield body of the shield machine from rolling. Background Technique

[0002] In the field of tunnel boring machinery, the shield full-face rock tunnel boring machine (TBM), as an efficient and automated tunnel excavation equipment, is widely used in the tunnel construction of various rock formations. Its core working principle depends on the propulsion system fixed inside the shield body. The propulsion cylinders provide a powerful propulsion force for the cutter head at the front end. However, when the cutter head encounters complex and changeable geological conditions, it will inevitably generate a reaction force, which directly acts on the shield structure, thereby causing the shield body to roll.

[0003] In order to solve the problem of shield body rolling, the invention patent with the publication number of CN103742161A and the publication date of April 23, 2014 discloses a dual-mode shield machine. By setting deflection cylinders and return cylinders, the deflection cylinders are used to adjust the front end of the propulsion cylinders to move along the tangent direction of the circumference, and the return cylinders are used to adjust the front end of the propulsion cylinders to move along the radial direction of the circumference, playing the role of correcting and preventing rolling. However, this solution requires installing a large number of deflection cylinders and return cylinders, with high costs, and each propulsion cylinder is controlled individually. It is difficult to effectively unify the control of each propulsion cylinder, which is prone to causing the propulsion cylinders to get stuck, and the control method is complex. Summary of the Invention

[0004] The purpose of the utility model is to overcome the problems existing in the prior art that the shield body of the shield machine is prone to rolling, and the existing anti-rolling structure has high costs, complex control methods and is prone to causing the propulsion cylinders to get stuck, and provides an anti-rolling device for a shield machine with a reliable structure and a simple control method.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] An anti-rolling device for a shield machine, the anti-rolling device includes a plurality of adjusting devices, and the plurality of adjusting devices are arranged along the circumferential direction of the shield body of the shield machine;

[0007] Each adjusting device includes an arc-shaped connecting plate and at least one oil cylinder fixing ring. The arc-shaped connecting plate can rotate around the central axis of the shield body of the shield machine. The arc-shaped connecting plate is fixedly connected to the bottom of the oil cylinder fixing ring. An installation hole is arranged in the middle of the oil cylinder fixing ring. A baffle is fixedly arranged at the front part of the oil cylinder fixing ring. The baffle is in limit fit with the outer wall of the cylinder body of the auxiliary propulsion oil cylinder. The front end of the cylinder body of the auxiliary propulsion oil cylinder is located in the installation hole, and the rear end of the cylinder body of the auxiliary propulsion oil cylinder is hinged to the shield body of the shield machine.

[0008] The oil cylinder fixing ring includes a double oil cylinder fixing ring and a single oil cylinder fixing ring. The baffle plate includes a first baffle plate and a second baffle plate. The mounting holes include a first mounting hole and a second mounting hole;

[0009] The double oil cylinder fixing ring is composed of a first upper half ring and a first lower half ring. The bottom of the first lower half ring is fixedly connected to the arc-shaped connecting plate. The two sides of the top of the first lower half ring are connected to the two sides of the bottom of the first upper half through fastening bolts. Two first mounting holes are formed between the first lower half ring and the first upper half ring. The front end of the first upper half ring is fixedly connected to the rear end of the first baffle plate. The first baffle plate is located between the two first mounting holes. The first baffle plate is in limit fit with two auxiliary pushing oil cylinders respectively arranged in the two first mounting holes;

[0010] The single oil cylinder fixing ring is composed of a second upper half ring and a second lower half ring. The bottom of the second lower half ring is fixedly connected to the arc-shaped connecting plate. The two sides of the top of the second lower half ring are connected to the two sides of the bottom of the second upper half through fastening bolts. A second mounting hole is formed between the second lower half ring and the second upper half ring. The front end of the second upper half is fixedly connected to the rear end of the second baffle plate. The second baffle plate is in limit fit with the auxiliary pushing oil cylinder arranged in the second mounting hole.

[0011] Polyester cushion blocks are arranged on the inner surfaces of the first mounting hole and the second mounting hole.

[0012] The anti-rolling device further includes a rectifying oil cylinder. The cylinder body of the rectifying oil cylinder is hinged to the oil cylinder seat. The oil cylinder seat is fixedly connected to the shield body of the shield machine. The piston rod of the rectifying oil cylinder is hinged to the connecting seat. The connecting seat is fixedly connected to the arc-shaped connecting plate. At least two waist-shaped holes are formed in the arc-shaped connecting plate. A guiding sliding seat is arranged in each waist-shaped hole. The guiding sliding seat is fixedly connected to the shield body of the shield machine.

[0013] In the cross-section of the arc-shaped connecting plate, the waist-shaped hole includes two opposite concentric arc edges. The two ends of the two concentric arc edges are respectively connected by two opposite semi-circular arc edges. The centers of the two concentric arc edges coincide with the center of the arc-shaped connecting plate. The center of the arc-shaped connecting plate is located on the central axis of the shield body of the shield machine;

[0014] The cylinder body of the rectifying oil cylinder is hinged to the oil cylinder seat through a first hinge shaft. The piston rod of the rectifying oil cylinder is hinged to the connecting seat through a second hinge shaft;

[0015] The first hinge shaft is perpendicular to the second hinge shaft.

[0016] The anti-rolling device includes four adjusting devices, which are respectively arranged on the top, bottom and both sides of the shield body of the shield machine.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. The anti-rolling device of a shield machine of the utility model comprises a plurality of adjusting devices. Each adjusting device includes an arc-shaped connecting plate and at least one oil cylinder fixing ring. Among them, the arc-shaped connecting plate can move circumferentially along the shield body of the shield machine driven by the deviation rectifying oil cylinder. The arc-shaped connecting plate is fixedly connected to the bottom of the oil cylinder fixing ring. An installation hole is arranged in the middle of the oil cylinder fixing ring, and an auxiliary pushing oil cylinder is arranged in the installation hole. The front end of the cylinder body of the auxiliary pushing oil cylinder is in limit fit with the inner wall of the installation hole, the rear end of the cylinder body of the auxiliary pushing oil cylinder is hinged to the shield body of the shield machine, and the outer wall of the cylinder body of the auxiliary pushing oil cylinder is in limit fit with the baffle. Through one deviation rectifying oil cylinder, the oil cylinder fixing ring on one arc-shaped connecting plate can be driven to move circumferentially along the shield body of the shield machine, and each oil cylinder fixing ring can drive the auxiliary pushing oil cylinder arranged therein to rotate accordingly. The control method is simple. At the same time, the anti-rolling device controls the actions of the four adjusting devices through a unified mechanical structure, and has a lower failure rate and a shorter installation period compared with using electrical components for control. Therefore, in this design, by controlling the expansion and contraction of one deviation rectifying oil cylinder, the rotation of the auxiliary pushing oil cylinder connected to the arc-shaped connecting plate can be driven. The control structure is simple and reliable, the installation period is short, and the control method is simple and the cost is low.

[0019] 2. The oil cylinder fixing ring in the anti-rolling device of a shield machine of the utility model comprises an upper half ring and a lower half ring, and the upper and lower half rings are connected by bolts. Therefore, when overhauling the anti-rolling device, the oil cylinder fixing ring can be directly disassembled and overhauled without removing the auxiliary pushing oil cylinder, and the overhaul of the anti-rolling device is convenient. At the same time, a polyester cushion block is arranged on the inner surface of the installation hole in the middle of the oil cylinder fixing ring. The elastic polyester cushion block enables the auxiliary pushing oil cylinder to have a certain movement margin in the installation hole and can also prevent the auxiliary pushing oil cylinder from being damaged when rotating. Therefore, in this design, the upper half ring and the lower half ring are connected by bolts to form an oil cylinder fixing ring. When overhauling, the anti-rolling device can be removed without removing the auxiliary pushing oil cylinder, and the overhaul of the anti-rolling device is convenient. At the same time, a polyester cushion block is arranged on the inner surface of the installation hole to prevent the auxiliary pushing oil cylinder from being damaged when twisting.

[0020] 3. In the anti-rolling device of a shield machine of the utility model, four adjusting devices are respectively arranged at the top, bottom and both sides of the shield body of the shield machine. Each adjusting device includes an arc-shaped connecting plate and a plurality of oil cylinder fixing rings fixed on the arc-shaped connecting plate. By respectively controlling the sliding of the four adjusting devices through four deviation rectifying oil cylinders, the unified angle control of a plurality of auxiliary pushing oil cylinders installed on the shield body of the shield machine can be carried out, and the torsion of each auxiliary pushing oil cylinder can be coordinated. Therefore, in this design, by respectively controlling the sliding of the four adjusting devices through four deviation rectifying oil cylinders, the unified control and coordination of a plurality of auxiliary pushing oil cylinders installed on the shield body of the shield machine can be carried out, and the control method is simple.

[0021] 4. In the anti-rolling device of a shield machine of the present utility model, two first mounting holes are provided in the middle of the double-cylinder fixing ring. A first baffle is provided at the top of the double-cylinder fixing ring. The rear part of the first baffle is fixedly connected to the front part of the double-cylinder fixing ring. The bottom of the first baffle is simultaneously in limit fit with the cylinder bodies of two auxiliary pushing cylinders respectively arranged in the two first mounting holes. At the same time, a second mounting hole is provided in the middle of the single-cylinder fixing ring. A second baffle is provided at the top of the second mounting hole. The rear part of the second baffle is fixedly connected to the front part of the single-cylinder fixing ring. The second baffle is in limit fit with the cylinder body of the auxiliary pushing cylinder arranged in the second mounting hole. When the auxiliary pushing cylinder rotates along the axial direction of the shield body of the shield machine, the first baffle and the second baffle can limit the rotation position of the auxiliary pushing cylinder within a certain range, avoiding the auxiliary pushing cylinder from being stuck during rotation. Therefore, in this design, by adding a baffle on the cylinder fixing ring, the auxiliary pushing cylinder can be prevented from being stuck during rotation, improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural view of the anti-rolling device of the shield machine of the present utility model.

[0023] Figure 2 is a schematic side view structure of the anti-rolling device of the shield machine.

[0024] Figure 3 is a schematic structural view of the adjusting device.

[0025] Figure 4 is another schematic structural view of the adjusting device.

[0026] Figure 5 is still another schematic structural view of the adjusting device.

[0027] Figure 6 is a schematic structural view of the double-cylinder fixing ring.

[0028] Figure 7 is a schematic side view structure of the double-cylinder fixing ring.

[0029] Figure 8 is a schematic side view structure of the single-cylinder fixing ring.

[0030] In the figure: arc-shaped connecting plate 1, waist-shaped hole 11, guiding sliding seat 12, cylinder fixing ring 2, double-cylinder fixing ring 21, first upper half ring 211, first lower half ring 212, single-cylinder fixing ring 22, second upper half ring 221, second lower half ring 222, auxiliary pushing cylinder 3, baffle 4, first baffle 41, second baffle 42, mounting hole 5, first mounting hole 51, second mounting hole 52, deviation rectifying cylinder 6, cylinder seat 61, connecting seat 62, first hinge shaft 63, second hinge shaft 64, polyester cushion block 7. DETAILED IMPLEMENTATION MANNER

[0031] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] See Figure 1 , an anti-rolling device for a shield machine, the anti-rolling device includes four adjusting devices respectively arranged on the top, bottom and both sides of the shield body of the shield machine.

[0033] Each of the adjusting devices includes an arc-shaped connecting plate 1 and at least one oil cylinder fixing ring 2. The arc-shaped connecting plate 1 can rotate around the central axis of the shield body of the shield machine. The arc-shaped connecting plate 1 is fixedly connected to the bottom of the oil cylinder fixing ring 2. A baffle 4 is arranged on the top of the oil cylinder fixing ring 2, and an installation hole 5 is arranged in the middle of the oil cylinder fixing ring 2. A secondary pushing oil cylinder 3 is arranged in the installation hole 5. As Figure 2 shown, the front end of the cylinder body of the secondary pushing oil cylinder 3 is in limit fit with the inner wall of the installation hole 5, the rear end of the cylinder body of the secondary pushing oil cylinder 3 is hinged to the shield body of the shield machine, and the outer wall of the cylinder body of the secondary pushing oil cylinder 3 is in limit fit with the baffle 4.

[0034] When the arc-shaped connecting plate 1 rotates around the central axis of the shield body of the shield machine, it drives the oil cylinder fixing ring 2 fixed thereon to rotate synchronously. The oil cylinder fixing ring 2 drives the front end of the secondary pushing oil cylinder 3 located in the installation hole 5 to twist, so as to change the angle and posture of the secondary pushing oil cylinder 3, and further balance the torque caused by the reaction force of the cutter head, avoiding the rolling of the shield body of the shield machine.

[0035] Since a baffle 4 is fixedly arranged at the front part of the oil cylinder fixing ring 2, and the bottom of the baffle 4 is in fit with the outer wall of the secondary pushing oil cylinder 3 in the oil cylinder fixing ring 2, the added baffle 4 is equivalent to increasing the axial length of the oil cylinder fixing ring, reducing the movement margin of the secondary pushing oil cylinder 3. When the secondary pushing oil cylinder 3 rotates, the baffle 4 prevents the secondary pushing oil cylinder 3 from rotating too large an angle, thereby causing an obvious angle deviation between multiple secondary pushing oil cylinders 3. Therefore, the setting of the baffle 4 can prevent the rotation directions of the secondary pushing oil cylinders in the oil cylinder fixing ring 2 from being too different and getting stuck.

[0036] There are two types of the oil cylinder fixing rings 2, namely a double oil cylinder fixing ring 21 and a single oil cylinder fixing ring 22; the baffle 4 includes a first baffle 41 on the double oil cylinder fixing ring 21 and a second baffle 42 on the single oil cylinder fixing ring 22; the installation hole 5 includes a first installation hole 51 on the double oil cylinder fixing ring 21 and a second installation hole 52 on the single oil cylinder fixing ring 22.

[0037] As Figure 3As shown, the double-cylinder fixed ring 21 is composed of a first upper half-ring 211 and a first lower half-ring 212. The bottom of the first lower half-ring 212 is fixedly connected to the arc-shaped connecting plate 1. The two sides of the top of the first lower half-ring 212 are connected to the two sides of the bottom of the first upper half-ring 211 through fastening bolts. Two first mounting holes 51 are formed between the first lower half-ring 212 and the first upper half-ring 211. The front end of the first upper half-ring 211 is fixedly connected to the rear end of the first baffle 41. The first baffle 41 is located between the two first mounting holes 51, and the first baffle 41 is in limit fit with two auxiliary push cylinders 3 respectively arranged in the two first mounting holes 51.

[0038] Specifically, as Figure 6 , Figure 7 shown, wing plates are provided on both sides of the top of the first lower half-ring 212 and both sides of the bottom of the first upper half-ring 211. Bolt holes for connection are formed in the wing plates. The first lower half-ring 212 and the first upper half-ring 211 can be connected and fixed into a complete double-cylinder fixed ring 21 through the bolt holes and the fastening bolts. At the same time, the first baffle 41 is welded to the front part of the first upper half-ring 211.

[0039] As Figure 4 shown, the single-cylinder fixed ring 22 is composed of a second upper half-ring 221 and a second lower half-ring 222. The bottom of the second lower half-ring 222 is fixedly connected to the arc-shaped connecting plate 1. The two sides of the top of the second lower half-ring 222 are connected to the two sides of the bottom of the second upper half-ring 221 through fastening bolts. A second mounting hole 52 is formed between the second lower half-ring 222 and the second upper half-ring 221. The front end of the second upper half-ring 221 is fixedly connected to the rear end of the second baffle 42. The second baffle 42 is in limit fit with the auxiliary push cylinder 3 arranged in the second mounting hole 52.

[0040] Specifically, as Figure 4 , Figure 8 shown, wing plates are provided on both sides of the top of the second lower half-ring 222 and both sides of the bottom of the second upper half-ring 221. Bolt holes for connection are formed in the wing plates. The second lower half-ring 222 and the second upper half-ring 221 can be connected and fixed into a complete single-cylinder fixed ring 22 through the bolt holes and the fastening bolts. At the same time, the second baffle 42 is welded to the front part of the second upper half-ring 221.

[0041] To ensure the operation of the equipment, lubricating grease needs to be applied to each cylinder fixed ring 2 and baffle 4.

[0042] As Figure 1As shown in the figure, a total of 20 auxiliary propulsion cylinders 3 are arranged along the circumference on the shield body of the shield machine. For the convenience of control, these 20 auxiliary propulsion cylinders 3 are divided into four groups: upper, lower, left, and right, and the angle control is carried out through four of the said adjusting devices. For the convenience of fixing and controlling each auxiliary propulsion cylinder 3, a total of two types of fixing rings are provided: double-cylinder fixing rings 21 and single-cylinder fixing rings 22. Among them, the double-cylinder fixing ring 21 can fix the front ends of the cylinder bodies of two auxiliary propulsion cylinders 3 at the same time, and the single-cylinder fixing ring 22 can only fix the front end of the cylinder body of one auxiliary propulsion cylinder 3.

[0043] One adjusting device is arranged at the top, bottom, and both sides of the shield body of the shield machine, and a total of four adjusting devices are provided. A certain number of double-cylinder fixing rings 21 and / or single-cylinder fixing rings 22 are fixedly arranged on the arc-shaped connecting plate 1 in each adjusting device according to requirements. The auxiliary propulsion cylinders 3 installed in the shield body of the shield machine can be divided into four groups according to different installation positions, and coordinated control is carried out through four adjusting devices. The control structure is simple and reliable, and the control method is simple.

[0044] In this embodiment, as Figure 1 shown, a total of twenty auxiliary propulsion cylinders 3 are arranged on the shield body of the shield machine. These auxiliary propulsion cylinders 3 are divided into four groups according to the installation positions and are respectively controlled by four adjusting devices.

[0045] Specifically, as Figure 1 、 Figure 3 shown, in the adjusting device arranged at the top of the shield body of the shield machine, it includes two double-cylinder fixing rings 21 symmetrically arranged on the arc-shaped connecting plate 1. The adjusting device arranged at the top of the shield body of the shield machine can control the rotation of the four auxiliary propulsion cylinders 3 located within the above two double-cylinder fixing rings 21.

[0046] As Figure 1 、 Figure 4 shown, in the adjusting device arranged at the bottom of the shield body of the shield machine, it includes two double-cylinder fixing rings 21 symmetrically arranged on the arc-shaped connecting plate 1, and two single-cylinder fixing rings 22 symmetrically arranged on the arc-shaped connecting plate 1. The adjusting device arranged at the bottom of the shield body of the shield machine can control the rotation of the six auxiliary propulsion cylinders 3 located within the above two double-cylinder fixing rings 21 and two single-cylinder fixing rings 22.

[0047] As Figure 1 、 Figure 5 shown, in any one of the adjusting devices arranged on both sides of the shield body of the shield machine, it includes two double-cylinder fixing rings 21 symmetrically arranged on the arc-shaped connecting plate 1, and a single-cylinder fixing ring 22 arranged between the two double-cylinder fixing rings 21. The adjusting device arranged on the side of the shield body of the shield machine can control the rotation of the five auxiliary propulsion cylinders 3 located within the above two double-cylinder fixing rings 21 and a single-cylinder fixing ring 22.

[0048] As shown Figure 6 in the figure, polyester cushion blocks 7 are provided on the inner surfaces of the first mounting hole 51 and the second mounting hole 52, and the polyester cushion blocks 7 are evenly attached to the inner surfaces of the mounting holes. After the front end of the auxiliary pushing oil cylinder 3 cylinder body is installed into the first mounting hole 51 or the second mounting hole 52, there are polyester cushion blocks 7 between the inner surface of the mounting hole and the outer wall of the auxiliary pushing oil cylinder 3 cylinder body. The elastic polyester cushion blocks 7 enable the front end of the auxiliary pushing oil cylinder 3 to have a certain movement margin in the first mounting hole 51 and the second mounting hole 52, and at the same time prevent the auxiliary pushing oil cylinder 3 from being damaged during the twisting process.

[0049] The anti-rolling device further includes a rectifying oil cylinder 6. The cylinder body of the rectifying oil cylinder 6 is hinged to the oil cylinder seat 61. The oil cylinder seat 61 is fixedly connected to the shield body of the shield machine. The piston rod of the rectifying oil cylinder 6 is hinged to the connecting seat 62. The connecting seat 62 is fixedly connected to the arc-shaped connecting plate 1. At least two waist-shaped holes 11 are provided on the arc-shaped connecting plate 1. A guiding sliding seat 12 is arranged in each waist-shaped hole 11. The guiding sliding seat 12 is fixedly connected to the shield body of the shield machine.

[0050] To ensure the smooth rotation of the arc-shaped connecting plate 1, lubricating grease needs to be applied between the waist-shaped holes 11 and the guiding sliding seats 12.

[0051] The cylinder body of the rectifying oil cylinder 6 is hinged to the oil cylinder seat 61 through a first hinge shaft 63, and the piston rod of the rectifying oil cylinder 6 is hinged to the connecting seat 62 through a second hinge shaft 64;

[0052] The first hinge shaft 63 is arranged perpendicular to the second hinge shaft 64.

[0053] By controlling the telescopic movement of the rectifying oil cylinder 6, the purpose of controlling the arc-shaped connecting plate 1 to rotate back and forth by a certain angle around the central axis of the shield body of the shield machine can be achieved, so as to realize the change of the angle of the auxiliary pushing oil cylinder 3.

[0054] In the cross-section of the arc-shaped connecting plate 1, the waist-shaped hole 11 includes two opposite concentric arc edges. The two ends of the two concentric arc edges are respectively connected by two opposite semi-circular arc edges. The centers of the two concentric arc edges coincide with the center of the arc-shaped connecting plate 1. The center of the arc-shaped connecting plate 1 is located on the central axis of the shield body of the shield machine;

[0055] The waist-shaped hole 11 is used to guide the rotation of the arc-shaped connecting plate 1 around the central axis of the shield body of the shield machine. The angle of the two concentric arc edges 112 of the waist-shaped hole 11 is the maximum angle that the arc-shaped connecting plate 1 can rotate.

[0056] The principle of the present utility model is described as follows:

[0057] During the operation of the shield machine, the propulsion cylinders provide the propulsion force for the cutter head at the front end to break and cut the rock ahead. During the cutting process, the cutter head generates a reaction force acting on the shield structure. To avoid the shield rolling phenomenon caused by this reaction force, by controlling the telescoping of the deviation correction cylinder 6, the adjusting device arranged circumferentially on the shield of the shield machine is actuated. The arc-shaped connecting plate 1 in the adjusting device rotates around the central axis of the shield of the shield machine, thereby driving the posture of the cylinder fixing ring and the auxiliary propulsion cylinder 3 arranged in the cylinder fixing ring, and further balancing the torque caused by the cutter head reaction force, so that the shield remains in a relatively stable state and avoids the rolling of the shield of the shield machine.

[0058] Embodiment 1:

[0059] An anti-rolling device for a shield machine, the anti-rolling device includes a plurality of adjusting devices, and the plurality of adjusting devices are arranged along the circumferential direction of the shield body of the shield machine; each adjusting device includes an arc-shaped connecting plate 1 and at least one oil cylinder fixing ring 2, the arc-shaped connecting plate 1 can rotate around the central axis of the shield body of the shield machine, the arc-shaped connecting plate 1 is fixedly connected to the bottom of the oil cylinder fixing ring 2, an installation hole 5 is arranged in the middle of the oil cylinder fixing ring 2, a baffle 4 is fixedly arranged at the front of the oil cylinder fixing ring 2, the baffle 4 is in limit fit with the outer wall of the cylinder body of the auxiliary push oil cylinder 3, the front end of the cylinder body of the auxiliary push oil cylinder 3 is located in the installation hole 5, and the rear end of the cylinder body of the auxiliary push oil cylinder 3 is hinged to the shield body of the shield machine; the oil cylinder fixing ring 2 includes a double oil cylinder fixing ring 21 and a single oil cylinder fixing ring 22, the baffle 4 includes a first baffle 41 and a second baffle 42, and the installation hole 5 includes a first installation hole 51 and a second installation hole 52; the double oil cylinder fixing ring 21 is composed of a first upper half ring 211 and a first lower half ring 212, the bottom of the first lower half ring 212 is fixedly connected to the arc-shaped connecting plate 1, the two sides of the top of the first lower half ring 212 are connected to the two sides of the bottom of the first upper half ring 211 through fastening bolts, two first installation holes 51 are formed between the first lower half ring 212 and the first upper half ring 211, the front end of the first upper half ring 211 is fixedly connected to the rear end of the first baffle 41, the first baffle 41 is located between the two first installation holes 51, and the first baffle 41 is in limit fit with the two auxiliary push oil cylinders 3 respectively arranged in the two first installation holes 51; the single oil cylinder fixing ring 22 is composed of a second upper half ring 221 and a second lower half ring 222, the bottom of the second lower half ring 222 is fixedly connected to the arc-shaped connecting plate 1, the two sides of the top of the second lower half ring 222 are connected to the two sides of the bottom of the second upper half ring 221 through fastening bolts, a second installation hole 52 is formed between the second lower half ring 222 and the second upper half ring 221, the front end of the second upper half ring 221 is fixedly connected to the rear end of the second baffle 42, and the second baffle 42 is in limit fit with the auxiliary push oil cylinder 3 arranged in the second installation hole 52; polyester pads 7 are arranged on the inner surfaces of the first installation hole 51 and the second installation hole 52.

[0060] Embodiment 2:

[0061] Embodiment 2 is basically the same as Embodiment 1, and the difference is:

[0062] The anti-rolling device further includes a deviation rectifying oil cylinder 6. The cylinder block of the deviation rectifying oil cylinder 6 is hinged to an oil cylinder seat 61 through a first hinge shaft 63. The oil cylinder seat 61 is fixedly connected to the shield body of the shield machine. The piston rod of the deviation rectifying oil cylinder 6 is hinged to a connecting seat 62 through a second hinge shaft 64. The first hinge shaft 63 is arranged perpendicular to the second hinge shaft 64. The connecting seat 62 is fixedly connected to the arc-shaped connecting plate 1. At least two waist-shaped holes 11 are formed in the arc-shaped connecting plate 1. A guiding sliding seat 12 is arranged in each waist-shaped hole 11. The guiding sliding seat 12 is fixedly connected to the shield body of the shield machine. In the cross-section of the arc-shaped connecting plate 1, the waist-shaped hole 11 includes two opposite concentric arc edges. The two ends of the two concentric arc edges are respectively connected by two opposite semi-circular arc edges. The centers of the two concentric arc edges coincide with the center of the arc-shaped connecting plate 1. The center of the arc-shaped connecting plate 1 is located on the central axis of the shield body of the shield machine.

[0063] Embodiment 3:

[0064] Embodiment 3 is basically the same as Embodiment 2, and the difference lies in that:

[0065] The anti-rolling device includes four adjusting devices, and the four adjusting devices are respectively arranged at the top, bottom and both sides of the shield body of the shield machine.

[0066] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modification or change made by those of ordinary skill in the art according to the content disclosed by the present invention shall be included in the protection scope recorded in the claims.

Claims

1. An anti-rolling device for a shield machine, characterized in that: The anti-roll device includes a plurality of adjustment devices, and the plurality of adjustment devices are arranged along the circumference of the shield body of the shield machine; Each of the adjustment devices comprises an arc-shaped connecting plate (1) and at least one cylinder fixing ring (2); the arc-shaped connecting plate (1) can rotate around the central axis of the shield body of the shield machine; the arc-shaped connecting plate (1) is fixedly connected to the bottom of the cylinder fixing ring (2); a mounting hole (5) is provided in the middle of the cylinder fixing ring (2); a baffle (4) is fixedly provided at the front of the cylinder fixing ring (2); the baffle (4) is limitedly matched with the outer wall of the cylinder body of the auxiliary thrust cylinder (3); the front end of the cylinder body of the auxiliary thrust cylinder (3) is located in the mounting hole (5); and the rear end of the cylinder body of the auxiliary thrust cylinder (3) is hinged to the shield body of the shield machine.

2. The anti-rolling device of a shield machine according to claim 1, characterized in that: The anti-roll device comprises four adjusting devices, and the four adjusting devices are respectively arranged on the top, bottom and both sides of the shield body of the shield machine.

3. The anti-rolling device of a shield machine according to claim 1, characterized in that: The oil cylinder fixing ring (2) comprises a double oil cylinder fixing ring (21) and a single oil cylinder fixing ring (22); the baffle plate (4) comprises a first baffle plate (41) and a second baffle plate (42); and the mounting hole (5) comprises a first mounting hole (51) and a second mounting hole (52); The double oil cylinder fixing ring (21) is composed of a first upper half ring (211) and a first lower half ring (212), the bottom of the first lower half ring (212) is fixedly connected to the arc-shaped connecting plate (1), the top two sides of the first lower half ring (212) are connected to the bottom two sides of the first upper half ring (211) by fastening bolts, two first mounting holes (51) are formed between the first lower half ring (212) and the first upper half ring (211), the front part of the first upper half ring (211) is fixedly connected to the rear part of the first baffle (41), and the first baffle (41) is simultaneously limitedly matched with the outer wall of the cylinder body of two auxiliary thrust oil cylinders (3) respectively arranged in the two first mounting holes (51); The single oil cylinder fixing ring (22) is composed of a second upper half ring (221) and a second lower half ring (222); the bottom of the second lower half ring (222) is fixedly connected to the arc-shaped connecting plate (1); the top two sides of the second lower half ring (222) are connected to the bottom two sides of the second upper half ring (221) by fastening bolts; a second mounting hole (52) is formed between the second lower half ring (222) and the second upper half ring (221); the front part of the second upper half ring (221) is fixedly connected to the rear part of the second baffle plate (42); the second baffle plate (42) is limitedly matched with the outer wall of the cylinder body of the auxiliary thrust oil cylinder (3) arranged in the second mounting hole (52).

4. The anti-rolling device of a shield machine according to claim 3, characterized in that: The inner surface of the first mounting hole (51) and the inner surface of the second mounting hole (52) are provided with a polyester pad (7).

5. An anti-rolling device for a shield machine according to any one of claims 1 to 4, characterized in that: The anti-roll device further comprises a deviation-correcting oil cylinder (6), the cylinder body of the deviation-correcting oil cylinder (6) being hinged to the oil cylinder seat (61), the oil cylinder seat (61) being fixedly connected to the shield body of the shield machine, the piston rod of the deviation-correcting oil cylinder (6) being hinged to the connecting seat (62), and the connecting seat (62) being fixedly connected to the arc-shaped connecting plate (1); The arc-shaped connecting plate (1) is provided with at least two waist-shaped holes (11) which penetrate from front to back, and a guide slide seat (12) is arranged in each waist-shaped hole (11), and the guide slide seat (12) is fixedly connected to the shield body of the shield machine.

6. The anti-rolling device of a shield machine according to claim 5, characterized in that: In the cross section of the arc-shaped connecting plate (1), the waist-shaped hole (11) comprises two opposite concentric arc edges, the two ends of the two concentric arc edges are respectively connected by two opposite semicircular arc edges, the center of the two concentric arc edges coincides with the center of the arc-shaped connecting plate (1), and the center of the arc-shaped connecting plate (1) is located on the central axis of the shield body of the shield machine.

7. The anti-rolling device of a shield machine according to claim 5, characterized in that: The cylinder body of the deviation-correcting oil cylinder (6) is hinged to the oil cylinder seat (61) via a first hinge shaft (63), and the piston rod of the deviation-correcting oil cylinder (6) is hinged to the connecting seat (62) via a second hinge shaft (64); The first hinge axis (63) is arranged perpendicular to the second hinge axis (64).

Citation Information

Patent Citations

  • Dual-mode shield tunneling machine

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