A double-track segment hoist for a shield tunneling machine and a processing method thereof

Abstract

This invention relates to the field of tunnel segment hoisting technology, and discloses a double-rail tunnel segment hoist for a tunnel boring machine and its processing method. The hoist includes a guide rail, an active trolley, and a driven trolley. Both the driven and active trolleys are slidably mounted on the guide rail surface. An adjustment assembly is located inside the driven trolley, and a winding assembly is slidably connected inside the adjustment assembly. A hook is located on the lower side of the winding assembly, which includes a winding box. The winding box contains two symmetrical limiting rings, and a set of circumferentially arranged limiting blocks are located on the side of the two limiting rings that are close to each other. The distance between the distance sensor and the guide rail is detected in real time by a distance sensor, and adjustments are made accordingly. When the overall position of the driven trolley changes due to vibration, the winding assembly is moved in the opposite direction to generate an opposing force that cancels out the vibration, preventing severe vibration and cable breakage.

Description

Technical Field

[0001] This invention relates to the field of tunnel segment hoisting technology, and in particular to a double-rail tunnel segment hoist for a tunnel boring machine and its processing method. Background Technology

[0002] In subway tunnel construction, the shield tunneling machine's double-rail segment crane is used to lift segments from the segment transport vehicle to the assembly position of the shield tunneling machine, providing necessary support for the assembly of tunnel segments. The shield tunneling machine's double-rail segment crane is usually composed of double rails and traveling wheels. The traveling wheels run on the double rails, which can realize the longitudinal movement of the crane inside the shield tunneling machine so as to carry out segment lifting operations at different positions.

[0003] Chinese Patent Publication No. CN109987516A discloses a segment hoist and a segment hoist anti-sway control system, including a traveling mechanism and a lifting mechanism. The traveling mechanism is mounted on a guide rail and is movable along the guide rail. The lifting mechanism is rotatably connected to the traveling mechanism and is used to fix and connect the segment. The lifting mechanism includes a slewing component and a swing component. The swing component is rotatably connected to the traveling mechanism. The slewing component is mounted on the swing component and is used to fix and connect the segment. The slewing component is movable relative to the swing component. Although this segment hoist can realize the automated hoisting of segments and greatly improve the hoisting efficiency of segments, vibration cannot be avoided during transportation.

[0004] Chinese patent CN114291745A discloses a segment hoist, including a traveling frame with a tilt adjustment mechanism. A vacuum suction cup is located at the lower part of the tilt adjustment mechanism, and the vacuum suction cup has an anti-drop mechanism for supporting the segments. The tilt adjustment mechanism includes a support arm fixed to the traveling frame, with a telescopic arm hinged to the support arm. The telescopic arm is hinged to a lifting cylinder hinged to the support arm, and the telescopic arm, lifting cylinder, and support arm form a triangular structure. The telescopic end of the telescopic arm has a rotating hinge, and the vacuum suction cup is connected to the telescopic arm through the rotating hinge. Although this segment hoist can reduce swaying, it cannot reduce the pressure of the cable on the winding box when going uphill or downhill, leading to breakage.

[0005] In the aforementioned prior art, due to prolonged use of the track, some debris may adhere to the surface or some dents may appear. During the transportation of the segment crane, a certain amount of vibration will occur. Under the action of vibration, the nuts may gradually loosen, resulting in a decrease in the tightness of the connection between the segments. At the same time, after the upward vibration, due to the presence of the heavy object, after the force disappears, the weight of the segment itself plus the downward impact will cause an impact on the cable, which may lead to breakage in severe cases.

[0006] Therefore, it is necessary to solve the above problems by developing a double-rail segment hoist for tunnel boring machines and its processing method. Summary of the Invention

[0007] The purpose of this invention is to provide a shield tunneling machine double-rail segment hoist and its processing method to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a shield tunneling machine double-rail segment crane, comprising a guide rail, an active trolley and a driven trolley, wherein the driven trolley and the active trolley are slidably disposed on the surface of the guide rail, the driven trolley is provided with an adjustment component inside, the adjustment component is slidably connected with a winding component inside, and the winding component is provided with a hook on its lower side;

[0009] The winding assembly includes a winding box, inside which are provided two symmetrical limiting rings. On the side of the two limiting rings that are close to each other, there is a set of limiting blocks arranged in a circle. Two symmetrical moving rings are sleeved on the outer surface of the winding box, and two symmetrical arc grooves are opened on the outer surface of the winding box.

[0010] The adjustment assembly includes two symmetrical sleeves. A first push rod is slidably connected inside the sleeve. The lower end of the first push rod is fixedly connected to the outer surface of the moving ring. An air inlet pipe is provided at the upper end of the first push rod. A pressure valve is provided at the upper end of the air inlet pipe. A second push rod is slidably connected inside the air inlet pipe. The second push rod passes through an arc-shaped groove. A first sliding groove for the limit block to pass through is provided at the lower end of the second push rod.

[0011] By adjusting the components, the position of the winding component can be changed. When the overall position of the driven trolley changes due to vibration, the vibration is counteracted by moving the winding component in the opposite direction, thus avoiding severe vibration that could cause the cable to break.

[0012] Preferably, the adjustment assembly further includes an n-shaped positioning frame, with two symmetrical sleeves disposed on the upper surface of the positioning frame, and a fan disposed in the middle of the upper surface of the positioning frame, with the two output ends of the fan respectively connected to the two sleeves.

[0013] Preferably, the inner bottom wall of the sleeve is provided with a spring, the upper end of the spring is fixedly connected to the upper end of the first push rod, a distance sensor is provided on the right side of the upper surface of the positioning frame, a wire inlet frame is provided at the lower end of the winding box, and pressure sensors are provided on the front and rear side walls of the wire inlet frame.

[0014] Preferably, a rotating roller is rotatably connected to the right side wall of the winding box, and a cable is provided on the outer surface of the rotating roller. The lower end of the cable is fixedly connected to the upper surface of the hook. A first motor is provided on the left side of the winding box, and the output shaft of the first motor is fixedly connected to the left end of the rotating roller.

[0015] Preferably, the outer surface of the hook is hinged with a limiting plate to prevent disengagement via a pin, and a torsion spring is provided between the limiting plate and the hook, with the torsion spring sleeved on the surface of the pin.

[0016] Preferably, the left and right sidewalls of the positioning frame are provided with second slide grooves for the winding assembly to slide up and down, and each second slide groove is slidably connected to a slider, and each slider is rotatably connected to the winding assembly.

[0017] Preferably, there are only two guide rails, one active trolley and one passive trolley. The bottom surface of the guide rail is provided with a chain. The upper part of the left and right side walls of the passive trolley and the active trolley are provided with a plurality of first guide wheels and second guide wheels. Each first guide wheel is in contact with the upper surface of the guide rail, and each second guide wheel is in contact with the side of the guide rail.

[0018] Preferably, the left side wall of the active trolley is provided with a rotating shaft, and a gear is provided in the middle of the outer surface of the rotating shaft. The gear meshes with a chain. The right side wall of the active trolley is provided with a second motor. The output shaft of the second motor is fixedly connected to the other end of the rotating shaft. A connecting group is provided between the active trolley and the driven trolley.

[0019] This invention also provides a processing method for a tunnel boring machine's double-rail segment hoist, the specific operation steps of which are as follows:

[0020] S1. Lower the position of the hooks using the winding assembly, and use two hooks to fix the tube segments;

[0021] S2. The tube segment is raised to the specified height by the winding assembly, and the active trolley is started to drive the driven trolley to move, thus moving the tube segment;

[0022] S3. The distance between the distance sensor and the guide rail is detected by the distance sensor. The vibration amplitude of the driven trolley is determined by the distance between the two. Then, the position of the hook is changed by adjusting the component, so that the vibration is canceled out by the reverse force.

[0023] S4. The pressure sensor determines the pressure being applied to the pressure sensor, and the tilt angle of the track is determined by the pressure. Then, the constraint on the winding assembly is released by the adjustment component, so that the winding assembly can rotate after being subjected to force, thus preventing the cable from directly hitting the inner wall of the winding assembly when transported on the tilted guide rail.

[0024] S5. Transport the tunnel segments to the processing location, use specific tools to splice the transported tunnel segments with the installed tunnel segments, and then fix them by welding.

[0025] Technical effects of the present invention:

[0026] 1. The present invention utilizes the cooperation of the fan, sleeve and first push rod to lower the winding assembly when the fan delivers air and raise the winding assembly when the fan exhausts air. This allows the height of the winding assembly to be changed to prevent the tube sheet from contacting the bottom surface and causing damage due to vertical vibration during transportation.

[0027] 2. The present invention, through the cooperation of the second push rod and the fan, can change the position of the first slide groove, so that the limiting block passes through the inside of the first slide groove, thereby releasing the constraint on the position of the winding box, so that the winding box can rotate when subjected to external force, thereby avoiding the pressure of the cable on the winding box when going uphill or downhill, and thus preventing breakage.

[0028] 3. This invention uses a distance sensor to detect the distance between the distance sensor and the guide rail in real time, and makes corresponding adjustments based on the distance between the two. When the overall position of the driven trolley changes due to vibration, the winding assembly moves in the opposite direction to generate an opposite force to cancel out the vibration, thus avoiding severe vibration that could cause the cable to break. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0031] Figure 3 This is a schematic diagram of the cross-sectional structure of the driven trolley of the present invention;

[0032] Figure 4 This is a schematic diagram of the cross-sectional structure of the positioning frame of the present invention;

[0033] Figure 5 This is a schematic diagram of the positioning frame structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the cross-sectional structure of the winding box of the present invention;

[0035] Figure 7 This is a schematic diagram of the sleeve structure of the present invention;

[0036] Figure 8 This is a schematic diagram of the cross-sectional structure of the sleeve of the present invention;

[0037] Figure 9 This is a schematic diagram of the hook structure of the present invention.

[0038] In the diagram: 1. Guide rail; 2. Active trolley; 3. Driven trolley; 4. Adjustment assembly; 401. Sleeve; 402. First push rod; 403. Air inlet pipe; 404. Second push rod; 405. First slide groove; 406. Positioning frame; 407. Fan; 408. Second slide groove; 409. Slider; 5. Rewinding assembly; 501. Rewinding box; 502. Limiting ring; 503. Limiting block; 504. Moving ring; 505. Arc groove; 506. Cable inlet frame; 507. Rotating roller; 508. Cable; 6. Hook; 7. Limiting plate; 8. Chain; 9. First guide wheel; 10. Second guide wheel; 11. Rotating shaft; 12. Gear; 13. Connecting assembly. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example

[0040] like Figures 1 to 9 As shown, this embodiment discloses a shield tunneling machine double-rail segment hoist, including a guide rail 1, an active trolley 2, and a driven trolley 3. The cross-section of the guide rail 1 is convex. Both the driven trolley 3 and the active trolley 2 are slidably mounted on the surface of the guide rail 1. An adjustment component 4 is provided inside the driven trolley. The adjustment component 4 can change the position of the winding component 5. When the driven trolley 3 passes through the convex part of the track and generates upward vibration, the adjustment component 4 causes the winding component 5 to descend. The upward vibration force is counteracted by using a reverse force, thereby reducing the vibration and preventing the segment fixed by the hook 6 from vibrating violently. The winding component 5 is slidably connected inside the adjustment component 4. The winding component 5 can wind up the cable 508, thereby changing the position of the hook 6 and lifting the segment. The hook 6 is provided on the lower side of the winding component 5.

[0041] The winding assembly 5 includes a winding box 501. Inside the winding box 501, there are two symmetrical limiting rings 502. On the side of the two limiting rings 502 that are close to each other, there is a set of circumferentially arranged limiting blocks 503. Through the cooperation of the limiting rings 502 and the limiting blocks 503, the position of the winding box 501 can be constrained to prevent the winding box 501 from rotating under force. Two symmetrical moving rings 504 are sleeved on the outer surface of the winding box 501. Two symmetrical arc-shaped grooves 505 are opened on the outer surface of the winding box 501.

[0042] Adjustment component 4 includes two symmetrical sleeves 401. A first push rod 402 is slidably connected inside each sleeve 401. The position of the winding box 501 can be freely changed via the first push rod 402. When the position of the winding box 501 changes, it can drive the lower hook 6 to move, thereby freely changing the height of the segment lifted by the hook 6. The lower side of the first push rod 402 is filled with gas, which provides a certain supporting effect under air pressure. The lower end of the first push rod 402 is fixedly connected to the outer surface of the moving ring 504. An air inlet pipe 403 is provided at the upper end of the push rod 402. A pressure valve is provided at the upper end of the air inlet pipe 403. A second push rod 404 is slidably connected inside the air inlet pipe 403. The second push rod 404 passes through the arc-shaped groove 505. A first sliding groove 405 for the limit block 503 to pass through is provided at the lower end of the second push rod 404. By changing the position of the second push rod 404, the limit block 503 can pass through the first sliding groove 405, thereby releasing the constraint on the position of the winding box 501 and allowing the winding box 501 to rotate when subjected to external force.

[0043] The adjustment component 4 also includes an n-shaped positioning frame 406, with two symmetrical sleeves 401 disposed on the upper surface of the positioning frame 406. A fan 407 is provided in the middle of the upper surface of the positioning frame 406, and the two output ends of the fan 407 are respectively connected to the two sleeves 401.

[0044] It should be noted that the number of fans 407 is the same as the number of adjustment components 4. Each guide rail 1 has a separate fan 407 on its lower side to provide corresponding power to the adjustment components 4. The fans 407 can not only send air into the two sleeves 401 to increase the air pressure inside the sleeves 401, but also draw out the gas inside the two sleeves 401 to create negative pressure inside.

[0045] A spring is provided on the inner bottom wall of the sleeve 401. The upper end of the spring is fixedly connected to the upper end of the first push rod 402. When slight vibration occurs, the spring can cancel the vibration force, preventing the vibration force from being transmitted to the lower tube segment and affecting the transmission efficiency of the tube segment. A distance sensor is provided on the right side of the upper surface of the positioning frame 406. The distance sensor detects the distance between the distance sensor and the guide rail 1 in real time. When the detected distance is equal to the threshold, it indicates that there is no abnormality in the guide rail 1. When it is lower than the threshold, it indicates that there is a foreign object on the surface of the guide rail 1, causing the driven trolley 3 to rise as a whole, thus generating vibration. When it is greater than the threshold, it indicates that there is a depression on the surface of the guide rail 1, causing the driven trolley 3 to fall as a whole, thus generating vibration again. Based on the above three situations, corresponding adjustments are made to cancel the vibration.

[0046] The lower end of the take-up box 501 is provided with a cable inlet frame 506. Pressure sensors are provided on the front and rear side walls of the cable inlet frame 506. The pressure sensors detect the pressure of the cable 508 on the pressure sensor in real time. When the detected pressure reaches the threshold, it indicates that the tube segment is gradually being transported upward or downward. At this time, due to the inclination of the track, the tube segment drives the cable 508 to be perpendicular to the horizontal plane under the action of gravity, so that the cable 508 is always squeezed against the inner wall of the cable inlet frame 506. In extreme cases, it may break. At this time, by releasing the position constraint of the take-up box 501, the take-up box 501 can rotate with the cable 508, so as to avoid the cable 508 constantly squeezing the inner wall of the cable inlet frame 506 and causing the cable 508 to break.

[0047] A rotating roller 507 is rotatably connected to the right side wall of the winding box 501. A cable 508 is provided on the outer surface of the rotating roller 507. When the rotating roller 507 rotates in the forward direction, it can wind up the cable 508, thereby lifting the tube segment to achieve the purpose of picking up the material. When the rotating roller 507 rotates in the reverse direction, it can unwind the cable 508, thereby lowering the tube segment to achieve the purpose of unloading the material. A counterweight is provided on the lower side of the outer surface of the cable 508. Under the action of the counterweight, the cable 508 descends vertically to avoid bending. The lower end of the cable 508 is fixedly connected to the upper surface of the hook 6. A first motor is provided on the left side of the winding box 501. The output shaft of the first motor is fixedly connected to the left end of the rotating roller 507. When the first motor is started, it can rotate in the forward or reverse direction to achieve the purpose of winding and unloading the material.

[0048] The outer surface of the hook 6 is hinged with a limiting plate 7 to prevent disengagement via a pin. The size of the limiting plate 7 is larger than the size of the opening of the hook 6, so that the limiting plate 7 cannot open when subjected to force from the inside out. The limiting plate 7 can only be flipped inward by force from the outside in, so that the opening can be opened and the clip of the pipe segment can pass through, thereby achieving the purpose of fixing the pipe segment. A torsion spring is provided between the limiting plate 7 and the hook 6, and the torsion spring is sleeved on the surface of the pin. At the same time, under the action of the torsion spring, the limiting plate 7 can return to its original position, thereby achieving the purpose of resetting.

[0049] The left and right side walls of the positioning frame 406 are provided with second slide grooves 408 for the winding assembly 5 to slide up and down. Each second slide groove 408 is slidably connected to a slider 409, and each slider 409 is rotatably connected to the winding assembly 5.

[0050] It should be noted that the slider 409 can slide inside the second groove 408 to avoid misalignment. At the same time, the slider 409 and the winding assembly 5 are rotatably connected, which allows the winding assembly 5 to rotate along the connection point of the slider 409.

[0051] There are exactly two guide rails 1, driving trolley 2, and driven trolley 3. By providing two symmetrical hooks 6, the force point can be divided into two parts, which is more stable than a single force point. At the same time, it can lift a larger weight. The bottom surface of the guide rail 1 is provided with a chain 8. The upper part of the left and right side walls of the driven trolley 3 and the driving trolley 2 are provided with several first guide wheels 9 and second guide wheels 10. The first guide wheels 9 are perpendicular to the upper surface of the guide rail 1 and mainly serve the purpose of sliding transportation. The second guide wheels 10 are perpendicular to the side of the guide rail 1. The two second guide wheels 10 can effectively clamp the guide rail 1 directly to the driven trolley 3 to avoid the side tipping during transportation. Each first guide wheel 9 is in contact with the upper surface of the guide rail 1, and each second guide wheel 10 is in contact with the side of the guide rail 1.

[0052] The left side wall of the active trolley 2 is provided with a rotating shaft 11, and a gear 12 is provided in the middle of the outer surface of the rotating shaft 11. The gear 12 meshes with the chain 8. The right side wall of the active trolley 2 is provided with a second motor. The output shaft of the second motor is fixedly connected to the other end of the rotating shaft 11. When the second motor is started, it can drive the gear 12 to rotate. Under the action of meshing, the active trolley 2 is slid on the surface of the guide rail 1, which drives the driven trolley 3 to move and transport the lifted tube segment. A connecting group 13 is provided between the active trolley 2 and the driven trolley 3. The connecting group 13 can combine the active trolley 2 and the driven trolley 3 together so that the two can move synchronously.

[0053] During use, both first motors are started simultaneously. Under normal conditions, the two first motors rotate synchronously to prevent the pipe segment from tipping over when lifting it. The two first motors then reverse simultaneously, causing the rotating roller 507 to reverse as well. This loosens the cable 508 wrapped around the surface of the rotating roller 507. Under the action of the counterweight, the hook 6 gradually moves downward. The limit plate 7 on the surface of the hook 6 is manually pressed to make it flip inward, opening the opening of the hook 6 so that the clip of the pipe segment can pass through, thereby achieving the purpose of fixing the pipe segment (the surface of the pipe segment is equipped with clips for easy transportation).

[0054] Once the fixing is complete, the two first motors are restarted to make them rotate forward. Under the action of the output shaft of the first motor, the rotating roller 507 is driven to rotate forward, gradually winding the cable 508 around the surface of the rotating roller 507, driving the two hooks 6 to rise, thereby effectively lifting the tunnel segment. When the specified height is reached, the two first motors stop rotating and self-lock to prevent the cable 508 from loosening and causing the tunnel segment to tilt.

[0055] After the tube segment is lifted, two second motors are started simultaneously. Under the action of the output shaft of the second motor, the rotating shaft 11 can be driven to rotate. Under the action of the rotating shaft 11, the gear 12 is driven to rotate. Under the action of meshing, the gear 12 moves along the track of the chain 8, causing the active carriage 2 to move. Under the action of the connecting group 13, the active carriage 2 and the driven carriage 3 can be combined together, so that the two can move synchronously.

[0056] During transportation, the distance sensor detects the distance between the distance sensor and the guide rail 1 in real time and makes corresponding adjustments based on the distance between them.

[0057] When the values ​​detected by the two distance sensors are equal to or close to the threshold, it indicates that there is no abnormality on the surface of the guide rail 1 and normal transportation can be carried out. The vibration can be offset by the spring inside the sleeve 401.

[0058] When the values ​​detected by the two distance sensors are below the threshold, it indicates that there is a foreign object on the surface of guide rail 1, causing the driven trolley 3 to rise as a whole, thereby generating vibration. Therefore, the following adjustments are required:

[0059] Start the blower 407 to generate airflow, which simultaneously introduces gas into the two sleeves 401 through the output end, gradually increasing the air pressure at the upper end of the sleeves 401. Under the action of air pressure, the first push rod 402 is pushed down gradually. Under the constraint of the motion ring 504, the winding box 501 moves downward until the distance detection value reaches the threshold again, thereby generating a force opposite to the upward vibration, which can effectively cancel the vibration force and prevent violent vibration from breaking the cable 508. After canceling the force, start the blower 407 to generate suction, which re-extracts the gas that was just injected. Under the action of negative pressure, the first push rod 402 is pushed up. Under the constraint of the motion ring 504, the winding box 501 is moved back to the initial position, preparing for the next adjustment.

[0060] When the values ​​detected by the two distance sensors exceed the threshold, it indicates that a depression has appeared on the surface of guide rail 1, causing the driven trolley 3 to descend as a whole, thus generating vibration. Therefore, the following adjustments are required:

[0061] Start the fan 407 to generate suction, which draws out the gas from the upper end of the sleeve 401. Under the action of negative pressure, the first push rod 402 is driven to rise gradually. Under the constraint of the motion ring 504, the winding box 501 is driven to rise until the distance detection value reaches the threshold again, thereby generating a force opposite to the downward vibration, which can cancel the vibration force and avoid violent vibration, causing the cable 508 to fall and break. After canceling the force, the above operation is repeated in reverse to reset the first push rod 402.

[0062] When the values ​​detected by the two distance sensors are different (high and low), it indicates that one guide rail 1 has a bulge and the other guide rail 1 has a dent, resulting in a tipping over. The following adjustments are required:

[0063] The fan 407 on the side with the higher value detected by the distance sensor is activated, causing the fan 407 to generate wind force. Under the action of the wind force, the first push rod 402 is lowered, causing the higher position of the winding box 501 to descend.

[0064] The fan 407 on the side where the distance sensor detects a lower value is activated, causing the fan 407 to generate suction. Under the action of negative pressure, the first push rod 402 is pushed up, causing the lower winding box 501 to rise, so that the two winding boxes 501 are at the same height, thus preventing them from tipping over and affecting transmission efficiency.

[0065] In extreme cases, if there is still a gap between the two distance sensors and the threshold after the above adjustments, the lower motor inside the winding box 501 on the side with the higher distance sensor detection value is activated, causing the first motor to reverse. Under the action of the output shaft of the first motor, the rotating roller 507 is driven to reverse, gradually loosening the cable 508 wrapped on the surface of the rotating roller 507, driving the hook 6 to descend, thereby effectively lowering this side of the tube segment, causing the tilted tube segment to gradually become parallel to the ground, the first motor stops rotating, and at the same time, it self-locks.

[0066] When the pressure detected by the pressure sensor reaches the threshold, it indicates that the segment is gradually being transported upwards or downwards. To prevent the cable 508 from being squeezed into the wire frame 506, the following adjustments are required:

[0067] Start the fan 407 and adjust its power to the maximum. Under the action of the wind, push the first push rod 402 down. Under the constraint of the motion ring 504, the position of the winding box 501 is lowered, thereby lowering the position of the segment lifted by the hook 6, so as to avoid the segment slipping and being damaged during the inclined transport of the track.

[0068] With the continuous injection of wind, the air pressure gradually increases, causing the pressure valve to open and allowing gas to enter the air intake pipe 403. Under the action of air pressure, the second push rod 404 is pushed to move downwards, causing the first slide groove 405 at the lower end of the second push rod 404 to move to the movement trajectory of the limit block 503. This allows the limit block 503 to pass through the first slide groove 405, thereby releasing the constraint on the winding box 501. At this time, under the squeezing force of the cable 508, the winding box 501 is caused to rotate, and part of the slider 409 passes through the first slide groove 405, so that the winding box 501 is also relatively perpendicular to the horizontal plane and parallel to the cable 508, thereby avoiding the cable 508 from being constantly squeezed into the wire frame 506 and causing the cable 508 to break.

[0069] Once the rotation angle is adjusted, the winding box 501 can be repositioned to prevent it from swinging freely during transportation, thus preventing the suspended tube segments from swinging back and forth. When the inclined track encounters a depression or protrusion, the above process can also be used to compensate for the damage and prevent severe vibration. Example

[0070] This embodiment discloses a processing method for a double-rail segment hoist for a tunnel boring machine, the specific steps of which are as follows:

[0071] S1. Lower the position of the hook 6 using the winding assembly 5, and use two hooks 6 to fix the tube segment.

[0072] S2. The tube segment is raised to the specified height by the winding assembly 5, and the active trolley 2 is started to drive the driven trolley 3 to move the tube segment.

[0073] S3. The distance between the distance sensor and the guide rail 1 is detected by the distance sensor. The vibration amplitude of the driven trolley 3 is determined by the distance between the two. Then, the position of the hook 6 is changed by adjusting the component 4, so that the vibration is canceled out by the reverse force.

[0074] S4. The pressure sensor determines the pressure force applied to it, and the inclination angle of the track is determined by the pressure force. Then, the constraint on the winding assembly 5 is released by the adjustment component 4, so that the winding assembly 5 can rotate after being subjected to force, thus preventing the cable 508 from directly hitting the inner wall of the winding assembly 5 when it is transported on the inclined guide rail 1.

[0075] S5. Transport the tunnel segments to the processing location, use specific tools to splice the transported tunnel segments with the installed tunnel segments, and then fix them by welding.

[0076] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double track segment erector for a tunneling machine, characterized in that, It includes a guide rail (1), an active trolley (2) and a driven trolley (3). Both the driven trolley (3) and the active trolley (2) are slidably disposed on the surface of the guide rail (1). An adjustment component (4) is provided inside the driven trolley. A winding component (5) is slidably connected inside the adjustment component (4). A hook (6) is provided on the lower side of the winding component (5). The winding assembly (5) includes a winding box (501), inside which are provided two symmetrical limiting rings (502), and on the side of the two limiting rings (502) that are close to each other, there is a set of circumferentially arranged limiting blocks (503). Two symmetrical moving rings (504) are sleeved on the outer surface of the winding box (501), and two symmetrical arc grooves (505) are opened on the outer surface of the winding box (501). The adjustment assembly (4) includes two symmetrical sleeves (401). A first push rod (402) is slidably connected inside the sleeve (401). The lower end of the first push rod (402) is fixedly connected to the outer surface of the moving ring (504). An air inlet pipe (403) is provided at the upper end of the first push rod (402). A pressure valve is provided at the upper end of the air inlet pipe (403). A second push rod (404) is slidably connected inside the air inlet pipe (403). The second push rod (404) passes through an arc-shaped groove (505). A first sliding groove (405) for the limit block (503) to pass through is provided at the lower end of the second push rod (404). (4) It also includes an n-shaped positioning frame (406), two symmetrical sleeves (401) are set on the upper surface of the positioning frame (406), a fan (407) is provided in the middle of the upper surface of the positioning frame (406), and the two output ends of the fan (407) are respectively connected to the two sleeves (401); a spring is provided on the inner bottom wall of the sleeve (401), the upper end of the spring is fixedly connected to the upper end of the first push rod (402), a distance sensor is provided on the right side of the upper surface of the positioning frame (406), and a wire inlet frame (506) is provided at the lower end of the winding box (501), and pressure sensors are provided on the front and rear side walls of the wire inlet frame (506); There are only two guide rails (1), active trolleys (2) and driven trolleys (3). The bottom surface of the guide rail (1) is provided with a chain (8). The upper part of the left and right side walls of the driven trolleys (3) and the active trolleys (2) are provided with several first guide wheels (9) and second guide wheels (10). Each first guide wheel (9) is in contact with the upper surface of the guide rail (1), and each second guide wheel (10) is in contact with the side of the guide rail (1).

2. The shield tunneling machine double-rail segment hoist according to claim 1, characterized in that, A rotating roller (507) is rotatably connected to the right side wall of the winding box (501). A cable (508) is provided on the outer surface of the rotating roller (507). The lower end of the cable (508) is fixedly connected to the upper surface of the hook (6). A first motor is provided on the left side of the winding box (501). The output shaft of the first motor is fixedly connected to the left end of the rotating roller (507).

3. A shield tunneling machine double-rail segment hoist according to claim 2, characterized in that, The outer surface of the hook (6) is hinged with a limiting plate (7) to prevent disengagement via a pin. A torsion spring is provided between the limiting plate (7) and the hook (6), and the torsion spring is sleeved on the pin surface.

4. A shield tunneling machine double-rail segment hoist according to claim 3, characterized in that, The left and right side walls of the positioning frame (406) are provided with second slide grooves (408) for the winding assembly (5) to slide up and down. Each second slide groove (408) is slidably connected to a slider (409), and each slider (409) is rotatably connected to the winding assembly (5).

5. A shield tunneling machine double-rail segment hoist according to claim 1, characterized in that, The left side wall of the active trolley (2) is provided with a rotating shaft (11), and a gear (12) is provided in the middle of the outer surface of the rotating shaft (11). The gear (12) meshes with the chain (8). The right side wall of the active trolley (2) is provided with a second motor. The output shaft of the second motor is fixedly connected to the other end of the rotating shaft (11). A connecting group (13) is provided between the active trolley (2) and the driven trolley (3).

6. A processing method for a shield tunneling machine double-rail segment hoist as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Lower the position of the hook (6) by using the winding assembly (5) and use two hooks (6) to fix the tube segment; S2. The tube segment is raised to the specified height by the winding assembly (5), and the active trolley (2) is started to drive the driven trolley (3) to move the tube segment. S3. The distance between the distance sensor and the guide rail (1) is detected by the distance sensor. The vibration amplitude of the driven trolley (3) is determined by the distance between the two. Then, the position of the hook (6) is changed by adjusting the component (4), so that the vibration is canceled by the reverse force. S4. The pressure sensor is subjected to the pressure force, and the inclination angle of the track is determined by the pressure force. Then, the constraint on the winding assembly (5) is released by the adjustment component (4), so that the winding assembly (5) can rotate after being subjected to force, and the cable (508) is prevented from directly hitting the inner wall of the winding assembly (5) when it is transported on the inclined guide rail (1). S5. Transport the tunnel segments to the processing location, use specific tools to splice the transported tunnel segments with the installed tunnel segments, and then fix them by welding.

Images