Shield machine propulsion device and method

Abstract

The present invention discloses a shield machine propulsion device and method, including a bracket, one side of the bracket is fixedly connected to a vertical rod, the vertical rod is symmetrically fixedly connected to two arc guide rails, each of the arc guide rails is slidably connected to a sliding seat, the sliding seat is provided with a hydraulic jack, and at least two laser lamps are arranged at intervals on the outer arc surface of the arc guide rail; the sliding seat is driven to slide on the arc guide rail by a suspension device. The present invention provides a first cushion block and a second cushion block of two heights, and all of them are quickly raised by rotating a swing rod and inserting them into a limit groove. On the one hand, it is easy to put it in place due to the guidance, and on the other hand, no manual cushion is required, thereby improving safety and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of shield machine propulsion, and in particular to a shield machine propulsion device and method. Background Art

[0002] Shield tunneling is the main method used in urban subway construction. However, when encountering some complex geological conditions, other construction methods are needed to construct tunnels. When the shield machine reaches the excavated tunnel, it is necessary to push the shield machine through the excavated tunnel section. Two hydraulic jacks are used as the shield propulsion power.

[0003] The two existing hydraulic jacks are generally placed at the bottom of the shield machine. The two hydraulic jacks may be pushed forward or deflected by the influence of the tunnel. The position of the hydraulic jacks is not easy to adjust, and the advancement amount of the hydraulic jacks needs to be adjusted separately, which is not convenient for timely correction of the pushing direction. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a shield machine propulsion device and method, thereby solving the problems existing in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A shield machine propulsion device, comprising a bracket, one side of the bracket is fixedly connected to a vertical rod, the vertical rod is symmetrically fixedly connected to two arc guide rails, each of the arc guide rails is slidably connected to a sliding seat, the sliding seat is provided with a hydraulic jack, and at least two laser lamps are arranged at intervals on the outer arc surface of the arc guide rail;

[0007] The sliding seat is driven to slide on the arc-shaped guide rail by a suspension device.

[0008] Preferably, the sliding seat is in an I-shape, the arc-shaped guide rail is provided with an arc-shaped through groove, and the sliding seat slides in the arc-shaped through groove.

[0009] Preferably, the suspension device includes a round rod, the vertical rod is fixedly connected to the round rod, the round rod is rotatably connected to two support rods, the two support rods are fixedly connected to two sliding seats in a one-to-one correspondence, the upper end of the vertical rod is fixedly connected to a cross rod, the cross rod is fixedly connected to two traction devices, the upper side of the support rod is fixedly connected to a hanging ear, and the traction device is connected to the hanging ear.

[0010] Preferably, a limiting groove is provided at the bottom of the sliding seat, the telescopic rod of the hydraulic jack is slidably connected to the sliding seat and extends into the limiting groove, a buffer spring is fixedly connected between the telescopic rod of the hydraulic jack and the inner wall of the limiting groove, the outer side of the telescopic rod of the hydraulic jack is fixedly connected to a boss, a first pad or a second pad is installed between the boss and the inner wall of the limiting groove, and the thickness of the first pad is greater than that of the second pad.

[0011] Preferably, an avoidance groove is provided on one side of the first cushion block or the second cushion block respectively.

[0012] Preferably, the round rod is rotatably connected to a swing rod, the swing rod is provided with a rotation shaft, both ends of the rotation shaft are respectively fixedly connected to a support rod, and the first cushion block and the second cushion block are respectively fixedly connected to the corresponding end of the support rod.

[0013] A shield machine propulsion method adopts the above-mentioned propulsion device to propel the shield machine.

[0014] The advantages of the present invention are as follows: a shield machine propulsion device and method provided by the present invention adjusts the position by sliding a sliding seat on an arc guide rail, performs supplementary jacking from a corresponding inclined position, and timely adjusts the deflection of the shield machine, thereby avoiding the jacking deviation of the shield machine and facilitating the shield machine to smoothly enter the tunnel; the support rod can be swapped with the rotation axis as a reference, and a first pad and a second pad of two heights are set, and all of them are quickly raised by rotating a swing rod and inserting them into a limit groove. On the one hand, it is easy to put it into place due to the guidance, and on the other hand, no manual pad is required, thereby improving safety and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a basic structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the connection structure of the hydraulic jack in the present invention;

[0017] Figure 3 It is a schematic diagram of the connection structure between the first cushion block and the hydraulic jack in the present invention;

[0018] Figure 4 yes Figure 3 A local enlarged view of point E in FIG.

[0019] Figure 5 This is a schematic diagram of the propulsion of the shield machine. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figure 1-5As shown, a shield machine propulsion device provided by the present invention includes a bracket 1, one side of the bracket 1 is fixedly connected to a vertical rod 2, the vertical rod 2 is symmetrically fixedly connected to two arc guide rails 3, a sink 21 is arranged on one side of the vertical rod 2, the arc guide rail 3 is fixed in the sink 21, so as to improve the supporting force, each arc guide rail 3 is slidably connected to a sliding seat 4, the sliding seat 4 is provided with a hydraulic jack 5, at least two laser lamps 6 are arranged at intervals on the outer arc surface of the arc guide rail 3, the laser lamp 6 emits a straight red laser line, and the red laser line is correspondingly irradiated to the end face of the tunnel, when the shield machine is deflected, the red laser line shines on the body of the shield machine, indicating that the shield machine is offset beyond the tolerance and needs to be adjusted; the sliding seat 4 is driven to slide on the arc guide rail 3 by the suspension device 7.

[0022] The sliding seat 4 slides on the arc guide rail 3 to adjust its position, performs supplementary jacking from the corresponding inclined position, and timely adjusts the deflection of the shield machine, thereby avoiding the jacking deviation of the shield machine and facilitating the shield machine to smoothly enter the tunnel.

[0023] The sliding seat 4 is in an I-shape, and the arc-shaped guide rail 3 is provided with an arc-shaped through groove 31, and the sliding seat 4 slides in the arc-shaped through groove 31; the suspension device 7 includes a round rod 71, and the vertical rod 2 is fixedly connected to the round rod 71, and the round rod 71 is rotatably connected to two support rods 72, and the two support rods 72 are fixedly connected to the two sliding seats 4 in a one-to-one correspondence, and the upper end of the vertical rod 2 is fixedly connected to the cross rod 73, and the cross rod 73 is fixedly connected to two traction devices 74, and the upper side of the support rod 72 is fixedly connected to the hanging ear 75, and the traction device 74 is connected to the hanging ear 75; the traction device 74 is a manual or electric hoist, which is hung on the hanging ear 75 through the hook of the chain lock, and the sliding seat 4 can be adjusted respectively through the two support rods 72. The two hydraulic jacks 5 can stay at different positions of the arc-shaped guide rail 3 under the action of gravity, which is convenient for jacking different positions of the shield machine.

[0024] A limiting groove 41 is set at the bottom of the sliding seat 4, the telescopic rod of the hydraulic jack 5 is slidably connected to the sliding seat 4 and extends into the limiting groove 41, a buffer spring 42 is fixedly connected between the telescopic rod of the hydraulic jack 5 and the inner wall of the limiting groove 41, and a boss 43 is fixedly connected to the outer side of the telescopic rod of the hydraulic jack 5. A first cushion block 44 or a second cushion block 45 is installed between the boss 43 and the inner wall of the limiting groove 41. The thickness of the first cushion block 44 is greater than that of the second cushion block 45, and an avoidance groove is respectively set on one side of the first cushion block 44 or the second cushion block 45.

[0025] When advancement deviation is found, the hydraulic jack 5 first retracts a certain distance, and then the first cushion block 44 or the second cushion block 45 is inserted between the boss 43 and the inner wall of the limit groove 41, so that the initial positions of the two hydraulic jacks 5 are changed. Therefore, during the process of advancing again, the position of the deviated side of the shield machine is additionally raised to facilitate immediate correction.

[0026] The round rod 71 is rotatably connected to the swing rod 46, and the swing rod 46 is installed with a rotating shaft 47. The two ends of the rotating shaft 47 are respectively fixedly connected to a support rod 48, and the first cushion block 44 and the second cushion block 45 are respectively fixedly connected to the corresponding end of the support rod 48; the two support rods 48 can be swapped with the rotating shaft 47 as a reference, and by setting the first cushion block 44 and the second cushion block 45 of two heights, and all of them are quickly raised by rotating and inserting them into the limit groove 41. On the one hand, it is easy to put it into place due to the guidance, and on the other hand, no manual padding is required, which improves safety and efficiency.

[0027] The invention also discloses a shield machine propulsion method, which adopts the propulsion device to propel the shield machine.

[0028] During operation, the sliding seat 4 slides and adjusts on the arc guide rail 3, supplements the jacking from the corresponding inclined position, and adjusts the deflection of the shield machine in time, thereby avoiding the jacking deviation of the shield machine and facilitating the shield machine to enter the tunnel smoothly; the support rod 48 can be swapped with the rotating shaft 47 as a reference, and by setting a first cushion block 44 and a second cushion block 45 of two heights, and all of them are quickly raised by rotating the swing rod 46 and inserting them into the limit groove 41. On the one hand, it is easy to put it into place due to the guidance, and on the other hand, no manual padding is required, which improves safety and efficiency.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shield machine propulsion device, comprising a bracket (1), one side of the bracket (1) being fixedly connected to a vertical rod (2), characterized in that: The vertical rod (2) is symmetrically fixedly connected to two arc-shaped guide rails (3); each of the arc-shaped guide rails (3) is slidably connected to a sliding seat (4); the sliding seat (4) is provided with a hydraulic jack (5); at least two laser lamps (6) are arranged at intervals on the outer arc surface of the arc-shaped guide rail (3); the sliding seat (4) is driven to slide on the arc-shaped guide rail (3) by a suspension device (7); The sliding seat (4) is in an I-shape, the arc-shaped guide rail (3) is provided with an arc-shaped through groove (31), and the sliding seat (4) slides in the arc-shaped through groove (31); The suspension device (7) comprises a round rod (71), the vertical rod (2) is fixedly connected to the round rod (71), the round rod (71) is rotatably connected to two support rods (72), the two support rods (72) are fixedly connected to two sliding seats (4) in a one-to-one correspondence, the upper end of the vertical rod (2) is fixedly connected to a cross rod (73), the cross rod (73) is fixedly connected to two tractors (74), the upper side of the support rod (72) is fixedly connected to a hanging ear (75), and the tractor (74) is connected to the hanging ear (75).

2. A shield machine propulsion device according to claim 1, characterized in that: A limiting groove (41) is arranged at the bottom of the sliding seat (4); the telescopic rod of the hydraulic jack (5) is slidably connected to the sliding seat (4) and extends into the limiting groove (41); a buffer spring (42) is fixedly connected between the telescopic rod of the hydraulic jack (5) and the inner wall of the limiting groove (41); a boss (43) is fixedly connected to the outer side of the telescopic rod of the hydraulic jack (5); a first cushion block (44) or a second cushion block (45) is arranged between the boss (43) and the inner wall of the limiting groove (41); and the thickness of the first cushion block (44) is greater than that of the second cushion block (45).

3. A shield machine propulsion device according to claim 2, characterized in that: An avoidance groove is respectively provided on one side of the first cushion block (44) or the second cushion block (45).

4. A shield machine propulsion device according to claim 3, characterized in that: The round rod (71) is rotatably connected to the swing rod (46), the swing rod (46) is provided with a rotation shaft (47), both ends of the rotation shaft (47) are respectively fixedly connected to a support rod (48), and the first cushion block (44) and the second cushion block (45) are respectively fixedly connected to the corresponding ends of the support rod (48).

5. A shield machine propulsion method, characterized in that: The shield machine is propelled by using the propulsion device according to any one of claims 1 to 4.

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