Auxiliary fixing device for shield tunneling machine steel sleeve and using method of auxiliary fixing device

Abstract

The invention relates to the technical field of shield construction, and discloses an auxiliary fixing device for a shield tunneling machine steel sleeve and a using method thereof.The auxiliary fixing device comprises a clamping mechanism, the clamping mechanism further comprises a base, a portal frame is fixedly connected to the top of the base, and two arc-shaped clamping blocks are arranged on the side wall of the portal frame; a motor is started to drive a two-way threaded rod to rotate, so that two arc-shaped clamping blocks are close to each other and move towards the steel sleeve, when the arc-shaped clamping blocks move, inserting blocks are driven to move to make contact with the steel sleeve, the inserting blocks are extruded to retreat, at the moment, inclined panels make contact with blocking plates, the inclined panels are extruded, and the inclined panels move longitudinally; the spring plate moves longitudinally, and the insertion block is driven to move longitudinally, so that the insertion block slides on the outer wall of the steel sleeve until the insertion block slides into the reinforcing grid of the steel sleeve, the connection strength between the upper steel sleeve and the lower steel sleeve is effectively enhanced, the steel sleeves are kept stable when the shield tunneling machine runs, and the connection stability of the steel sleeves is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of shield construction equipment, in particular to an auxiliary fixing device for a steel sleeve of a shield machine and a use method thereof. Background Art

[0002] The shield machine is a special engineering machinery for tunnel excavation. It has the functions of excavating and cutting soil, transporting earth and ballast, assembling tunnel lining, measuring and guiding and correcting deviations. The more commonly used method in the shield machine receiving process is the steel sleeve receiving method. Based on the concept of balanced arrival, a closed steel sleeve with a diameter slightly larger than the shield machine and a length slightly longer than the shield machine is manufactured and tightly connected to the tunnel portal of the receiving shaft. Soil is poured into the steel sleeve to achieve a pressure balanced with the surrounding soil layer, so that the shield machine is advanced in the soil inside the steel sleeve, exchanging a small space for a large space, allowing the shield machine to pass directly through the tunnel portal and enter the steel sleeve safely.

[0003] The steel sleeve is usually assembled from multiple sections of the cylinder, and each section of the cylinder is also assembled from two upper and lower semicircular steel plates. In order to maintain the stability of the steel sleeve, a support frame is usually used to provide additional support for the steel sleeve. However, in order to facilitate the installation and disassembly of the support frame, bolts are usually used to connect the connection points of the support frame together. However, when the shield machine is running, vibrations will be generated, and the bolts may be affected by the vibration and may gradually loosen, affecting the stability of the support for the steel sleeve. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an auxiliary fixing device for a steel sleeve of a shield machine, comprising a clamping mechanism, the clamping mechanism also comprising a base, the top of the base is fixedly connected to a gantry, two arc-shaped clamping blocks are arranged on the side walls of the gantry, and the parts contained in the two arc-shaped clamping blocks are the same; The laminating mechanism comprises a fixing frame slidably connected to the inner wall of the arc-shaped clamping block, a moving groove is provided on the inner wall of the arc-shaped clamping block, and an extrusion plate is slidably connected to the inner wall of the moving groove; The pushing mechanism comprises three oil pipelines fixedly connected to the side wall of the arc-shaped clamping block, the inner walls of the three oil pipelines are all slidably connected with piston rod 1, and the inner walls of the three oil pipelines are all slidably connected with piston rod 2.

[0005] Preferably, the clamping mechanism further comprises a steel sleeve fixedly connected to the top of the base, a motor is fixedly connected to the side wall of the gantry, a bidirectional threaded rod is rotatably connected to the inner wall of the gantry, and the side wall of the bidirectional threaded rod is fixedly connected to the output end of the side wall of the motor; Among them, the outer wall of the bidirectional threaded rod is threadedly connected to the inner wall of the arc-shaped clamping block, and two limit rods are fixedly connected to the side wall of the gantry. The two limit rods are slidingly connected to the inner wall of the arc-shaped clamping block. The base is first fixed at the hole position, and then the steel sleeve is installed on the base. After the steel sleeve is installed, the motor is started to drive the bidirectional threaded rod to rotate, so that the two arc-shaped clamping blocks approach each other and move toward the direction of the steel sleeve. When the arc-shaped clamping block moves.

[0006] Preferably, the clamping mechanism further comprises a spring plate slidably connected to the inner wall of the arc-shaped clamping block, ten plug blocks are slidably connected to the inner wall of the arc-shaped clamping block, ten spring return rods 1 are fixedly connected to the side wall of the spring plate, and sliding grooves are provided on the inner walls of the ten plug blocks, and the inner walls of the ten sliding grooves are slidably connected to the outer wall of the spring return rod 1; Among them, the top of the base is slidably connected to two blocking plates, the inner walls of the two blocking plates are slidably connected with spring return rods 2, the outer walls of the two spring return rods 2 are fixedly connected to the side walls of the gantry, and the side walls of the spring plates are fixedly connected with inclined panels, which will drive the plug block to move and contact with the steel sleeve, and the plug block will be squeezed and retreat, and at the same time squeeze the spring return rod 1, so that the spring return rod 1 accumulates resilience. At this time, the inclined panel will contact the blocking plate. Since the contact surfaces of the inclined panel and the blocking plate are both inclined surfaces, the blocking plate will squeeze the inclined panel to move the inclined panel longitudinally, allowing the spring plate to move longitudinally and accumulate resilience. When the spring plate moves longitudinally, the spring return rod 1 drives the plug block to move longitudinally, so that the plug block slides on the outer wall of the steel sleeve. Until the plug slides into the reinforced grid at the outer wall of the steel sleeve, at this time, the rebound force of the spring return rod 1 will be released, pushing the plug into the reinforced grid between the joints of the steel sleeves, and plugging the steel sleeves. When the plug enters the reinforced grid, the spring plate cannot move, and the inclined plate will squeeze the blocking plate to move the blocking plate, stretching the spring return rod 2, so that the arc-shaped clamping block can move forward smoothly and contact the steel sleeve, clamping the joint of the steel sleeve, and further reinforcing the grid by inserting the plug. The insertion of the plug can effectively enhance the connection strength between the upper and lower steel sleeves, prevent the bolts from loosening due to vibration, resulting in unstable connection, so that the steel sleeve remains stable during the operation of the shield machine, ensuring the stability of the steel sleeve connection.

[0007] Preferably, the fitting mechanism also includes an arc plate 1 rotatably connected to the outer wall of a fixing frame 1, an arc plate 2 is rotatably connected to the outer wall of the fixing frame 1, and rubber folding blocks are fixedly connected to the inner walls of the arc plate 1 and the arc plate 2. The side walls of the three piston rods 1 are fixedly connected to the side walls of the extrusion plate. The force of the arc clamping block moves. When the arc clamping block moves close to the steel sleeve, the arc plate 1 and the arc plate 2 will contact the upper semicircular outer wall of the steel sleeve, so that the arc plate 1 and the arc plate 2 are squeezed and rotated to fit the upper semicircular outer wall of the steel sleeve.

[0008] Preferably, the fitting mechanism also includes an air pipe that is connected through the outer wall of the rubber folding block, the outer walls of the two air pipes are connected through the inner wall of the extrusion plate, and the inner walls of the ten plug blocks are slidably connected with two pushing blocks, so that the rubber folding block is fitted with the outer wall of the upper semicircle of the steel sleeve at the same time. When the rubber folding block is fitted with the outer wall of the steel sleeve, the arc-shaped clamping block continues to move, and the arc-shaped plate 1 and the arc-shaped plate 2 are affected by the extrusion force, so they will push the fixing frame 1 to move. When the fixing frame 1 moves, it will drive the extrusion plate to move, squeezing the gas in the moving groove. The squeezed gas will enter the rubber folding block through the air pipe, causing the rubber folding block to expand and squeeze the steel sleeve, continuously squeezing the upper semicircle of the steel sleeve to provide uniform clamping force.

[0009] Preferably, the pushing mechanism further comprises an air delivery groove provided on the inner wall of the plug block, the inner walls of the ten sliding grooves are rotatably connected with air blocking plates, the side walls of the spring plate are fixedly connected with ten pushing rods, and the top and bottom of the spring plate are fixedly connected with connecting rods; Among them, hydraulic oil is provided on the inner walls of the three oil pipelines, and the four connecting rods are grouped in twos. The side walls of the two groups of connecting rods are fixedly connected with a fixed frame 2. The force of the movement of the extrusion plate is utilized. When the extrusion plate moves, it will drive the piston rod 1 to move. When the piston rod 1 moves, it will squeeze the hydraulic oil in the oil pipeline. The hydraulic oil will push the piston rod 2 to move, push the spring plate close to the steel sleeve, and squeeze the spring reset rod 1 at the same time. When the spring reset rod 1 moves, at this time, since the plug block has been inserted into the reinforced grid, the plug block is in a stationary state. When the spring plate moves, it will also drive the push rod to move. When the spring reset rod 1 moves, it will squeeze the gas in the sliding groove.

[0010] Preferably, the pushing mechanism further comprises two beating rollers arranged on the inner wall of the arc-shaped clamping block, the outer walls of the two beating rollers are fixedly connected with springs, the outer walls of the beating rollers are rotatably connected with the inner wall of the second fixing frame, and the side walls of the two beating rollers are fixedly connected with gears; Among them, the top and bottom of the arc-shaped clamping block are fixedly connected with racks, and the outer walls of the two gears are meshed with the side walls of the racks. By utilizing the force of the movement of the spring plate, when the spring plate moves close to the steel sleeve, the spring plate will push the fixed frame 2 to move close to the steel sleeve, driving the flapping roller and the gear to move. When the gear moves, it will mesh with the rack, causing the gear to rotate during the movement process, driving the flapping roller to rotate. When the flapping roller rotates, the clockwork spring will be tightened, causing the clockwork spring to accumulate rebound force. As the gear continues to move, it will separate from the rack, the limit on the gear will disappear, and the accumulated rebound force of the clockwork spring will be released.

[0011] A method for using an auxiliary fixing device for a shield machine steel sleeve comprises the following steps: S1: First fix the base at the hole position, then install the steel sleeve on the base. After the steel sleeve is installed, start the motor to drive the bidirectional threaded rod to rotate, so that the two arc-shaped clamping blocks approach each other and move toward the steel sleeve. When the arc-shaped clamping blocks move; S2: The insert block will be driven to move and contact the steel sleeve. The insert block will be squeezed and retreated, and at the same time, the spring return rod 1 will be squeezed to allow the spring return rod 1 to accumulate resilience. At this time, the inclined plate will contact the blocking plate. Since the contact surfaces of the inclined plate and the blocking plate are both inclined surfaces, the blocking plate will squeeze the inclined plate to make the inclined plate move longitudinally. S3: Let the spring plate move longitudinally to accumulate resilience. When the spring plate moves longitudinally, the spring reset rod drives the insert block to move longitudinally, so that the insert block slides on the outer wall of the steel sleeve until the insert block slides into the reinforced grid at the outer wall of the steel sleeve.

[0012] The present invention has the following beneficial effects: (1) When the present invention is used, the base is first fixed at the position of the hole, and then the steel sleeve is installed on the base. After the steel sleeve is installed, the motor is started to drive the bidirectional threaded rod to rotate, so that the two arc-shaped clamping blocks are close to each other and move toward the steel sleeve. When the arc-shaped clamping block moves, it will drive the plug block to move and contact the steel sleeve. The plug block will be squeezed and retreated, and at the same time, the spring return rod 1 will be squeezed to allow the spring return rod 1 to accumulate rebound force. At this time, the inclined plate will contact the blocking plate. Since the contact surfaces of the inclined plate and the blocking plate are both inclined surfaces, the blocking plate will squeeze the inclined plate to make the inclined plate move longitudinally, allowing the spring plate to move longitudinally to accumulate rebound force. When the spring plate moves longitudinally, the spring return rod 1 drives the plug block to move longitudinally, so that the plug block is on the outer wall of the steel sleeve. The spring plate is unable to move, and the inclined plate squeezes the blocking plate to move the blocking plate, stretching the spring return rod 2 so that the arc-shaped clamping block can smoothly move forward and contact the steel sleeve, clamping the joint of the steel sleeve, and further reinforcing the grid by inserting the block. The insertion of the block can effectively enhance the connection strength between the upper and lower steel sleeves, prevent the bolts from loosening due to vibration, and cause unstable connection, so that the steel sleeve remains stable during the operation of the shield machine, ensuring the stability of the steel sleeve connection.

[0013] (2) The present invention utilizes the force of the arc clamping block moving. When the arc clamping block moves close to the steel sleeve, the arc plate 1 and the arc plate 2 will contact the upper semicircular outer wall of the steel sleeve, so that the arc plate 1 and the arc plate 2 are squeezed and rotated to fit the upper semicircular outer wall of the steel sleeve. At the same time, the rubber folding block fits the upper semicircular outer wall of the steel sleeve. When the rubber folding block fits the outer wall of the steel sleeve, the arc clamping block continues to move. The arc plate 1 and the arc plate 2 are affected by the squeezing force and push the fixing frame 1 to move. When the fixing frame 1 moves, it drives the squeezing plate to move and squeezes the gas in the moving groove. The squeezed gas enters the rubber folding block through the gas pipe, causing the rubber folding block to expand and squeeze the steel sleeve. The upper semicircle of the steel sleeve is continuously squeezed to provide a uniform clamping force, so that the squeezing force of the shield machine on the steel sleeve is evenly distributed, so that the steel sleeve remains stable during use.

[0014] (3) The present invention utilizes the force of the extrusion plate moving. When the extrusion plate moves, it will drive the piston rod 1 to move. When the piston rod 1 moves, it will squeeze the hydraulic oil in the oil pipeline. The hydraulic oil will push the piston rod 2 to move, push the spring plate close to the steel sleeve, and squeeze the spring return rod 1 at the same time. When the spring return rod 1 moves, at this time, since the plug block has been inserted into the reinforced grid, the plug block is in a stationary state. When the spring plate moves, it will also drive the push rod to move. When the spring return rod 1 moves, it will squeeze the gas in the sliding groove. At this time, the gas will be blocked by the air blocking plate. As the push rod moves, it will contact the air blocking plate, pushing the air blocking plate to rotate, allowing high-pressure gas to enter the bottom of the push block through the gas delivery groove, pushing the push block out, allowing the push block to contact the reinforced grid, filling the gap between the plug block and the reinforced grid, so that the plug block and the reinforced grid are tightly attached to make the fixation more firm. The close contact of the plug block can reduce the impact of vibration and impact on the steel sleeve, thereby improving the stability during operation.

[0015] (4) The present invention utilizes the force of the spring plate to move. When the spring plate moves in the direction close to the steel sleeve, the spring plate will push the fixed frame 2 to move close to the steel sleeve, driving the flapping roller and the gear to move. When the gear moves, it will mesh with the rack, causing the gear to rotate during the movement process, driving the flapping roller to rotate. When the flapping roller rotates, it will tighten the clockwork spring, causing the clockwork spring to accumulate resilience. As the gear continues to move, it will separate from the rack, the limit on the gear disappears, and the resilience accumulated in the clockwork spring will be released, driving the flapping roller to rotate. At this time, the flapping roller will also contact the steel sleeve. When the flapping roller rotates, it will briefly and lightly flap the steel sleeve. The short-term flapping can help disperse the local stress caused by clamping and reduce stress concentration. The overall structure of the steel sleeve is more stable, which helps to resist the vibration generated by the operation of the shield machine during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a top cross-sectional schematic diagram of the arc-shaped clamping block of the present invention; Figure 4 It is a cross-sectional schematic diagram of the arc-shaped clamping block of the present invention; Figure 5 For the present invention Figure 4 A is an enlarged schematic diagram; Figure 6 For the present invention Figure 4 A magnified schematic diagram of B; Figure 7 For the present invention Figure 4 A magnified schematic diagram of middle C; Figure 8 It is a rear cross-sectional schematic diagram of the arc-shaped clamping block of the present invention; Fig. 9 For the present invention Figure 8 A magnified schematic diagram of D in the middle; Fig.10 It is a schematic diagram of the working process of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. Clamping mechanism; 101. Base; 102. Gantry; 103. Arc clamping block; 104. Steel sleeve; 105. Motor; 106. Bidirectional threaded rod; 107. Spring plate; 108. Insert block; 109. Spring return rod 1; 110. Block plate; 111. Spring return rod 2; 112. Inclined plate; 113. Sliding groove; 2. Laminating mechanism; 201. Fixed frame 1; 202. Moving groove; 203. Extrusion Plate; 204, arc plate one; 205, arc plate two; 206, rubber folding block; 207, gas pipe; 3, pushing mechanism; 301, oil pipe; 302, piston rod one; 303, piston rod two; 304, pushing block; 305, gas trough; 306, air blocking plate; 307, pushing rod; 308, connecting rod; 309, fixing frame two; 310, clockwork spring; 311, beating roller; 312, gear; 313, rack. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For example, see Figure 1 - Figure 5 The present invention is an auxiliary fixing device for a steel sleeve of a shield machine, comprising a clamping mechanism 1, wherein the clamping mechanism 1 further comprises a base 101, a gantry 102 is fixedly connected to the top of the base 101, two arc-shaped clamping blocks 103 are arranged on the side walls of the gantry 102, and the parts contained in the two arc-shaped clamping blocks 103 are the same; The laminating mechanism 2 includes a fixing frame 201 slidably connected to the inner wall of the arc-shaped clamping block 103, a moving groove 202 is provided on the inner wall of the arc-shaped clamping block 103, and a pressing plate 203 is slidably connected to the inner wall of the moving groove 202; The pushing mechanism 3 includes three oil pipes 301 fixedly connected to the side wall of the arc-shaped clamping block 103, the inner walls of the three oil pipes 301 are all slidably connected with piston rod 1 302, and the inner walls of the three oil pipes 301 are all slidably connected with piston rod 2 303.

[0021] The clamping mechanism 1 also includes a steel sleeve 104 fixedly connected to the top of the base 101, a motor 105 is fixedly connected to the side wall of the gantry 102, a bidirectional threaded rod 106 is rotatably connected to the inner wall of the gantry 102, and the side wall of the bidirectional threaded rod 106 is fixedly connected to the output end of the side wall of the motor 105; Among them, the outer wall of the bidirectional threaded rod 106 is threadedly connected to the inner wall of the arc-shaped clamping block 103, and two limit rods are fixedly connected to the side wall of the gantry 102. The two limit rods are slidingly connected to the inner wall of the arc-shaped clamping block 103. The base 101 is first fixed at the hole position, and then the steel sleeve 104 is installed on the base 101. After the steel sleeve 104 is installed, the motor 105 is started to drive the bidirectional threaded rod 106 to rotate, so that the two arc-shaped clamping blocks 103 approach each other and move toward the steel sleeve 104. When the arc-shaped clamping block 103 moves.

[0022] The clamping mechanism 1 also includes a spring plate 107 slidably connected to the inner wall of the arc-shaped clamping block 103, ten plug blocks 108 are slidably connected to the inner wall of the arc-shaped clamping block 103, ten spring return rods 109 are fixedly connected to the side wall of the spring plate 107, and the inner walls of the ten plug blocks 108 are all provided with sliding grooves 113, and the inner walls of the ten sliding grooves 113 are all slidably connected to the outer wall of the spring return rod 109; Among them, the top of the base 101 is slidably connected with two blocking plates 110, and the inner walls of the two blocking plates 110 are slidably connected with spring return rods 111. The outer walls of the two spring return rods 111 are fixedly connected to the side walls of the gantry 102. The side walls of the spring plate 107 are fixedly connected with inclined panels 112, which will drive the plug block 108 to move and contact the steel sleeve 104. The plug block 108 will be squeezed and retreated, and at the same time squeeze the spring return rod 109. The spring return rod 109 accumulates the resilience. At this time, the inclined plate 112 will contact the blocking plate 110. Since the contact surfaces of the inclined plate 112 and the blocking plate 110 are both inclined surfaces, the blocking plate 110 will squeeze the inclined plate 112 to make the inclined plate 112 move longitudinally, so that the spring plate 107 moves longitudinally to accumulate the resilience. When the spring plate 107 moves longitudinally, the spring return rod 109 drives the plug 108 to move longitudinally, so that the plug 108 is in the steel sleeve 10 4, until the plug block 108 slides into the reinforced grid at the outer wall of the steel sleeve 104, at this time, the resilience of the spring return rod 109 will be released, pushing the plug block 108 into the reinforced grid between the joints of the steel sleeve 104, and plugging the steel sleeve 104. When the plug block 108 enters the reinforced grid, the spring plate 107 cannot move, and the inclined plate 112 will squeeze the blocking plate 110 to move the blocking plate 110, stretching the spring return rod 2 111, so that the arc clamping block 103 can smoothly move forward and contact the steel sleeve 104, clamping the joint of the steel sleeve 104, and further strengthening the grid by inserting the plug block 108. The insertion of the plug block 108 can effectively enhance the connection strength between the upper and lower steel sleeves 104, prevent the bolts from loosening due to vibration, resulting in unstable connection, so that the steel sleeve 104 remains stable during the operation of the shield machine, ensuring the stability of the connection of the steel sleeve 104.

[0023] For example 2, please refer to Figure 6 - Fig.10 The present invention is an auxiliary fixing device for a steel sleeve of a shield machine. On the basis of the first embodiment, the fitting mechanism 2 also includes an arc plate 204 rotatably connected to the outer wall of a fixing frame 201, and an arc plate 205 is rotatably connected to the outer wall of the fixing frame 201. The inner walls of the arc plate 204 and the arc plate 205 are fixedly connected with rubber folding blocks 206. The side walls of the three piston rods 302 are fixedly connected to the side walls of the extrusion plate 203. The force of the arc clamping block 103 moving, when the arc clamping block 103 moves close to the steel sleeve 104, the arc plate 104 and the arc plate 205 will contact the upper semicircular outer wall of the steel sleeve 104, so that the arc plate 104 and the arc plate 205 are squeezed and rotated to fit the upper semicircular outer wall of the steel sleeve 104.

[0024] The fitting mechanism 2 also includes an air pipe 207 that is connected to the outer wall of the rubber folding block 206. The outer walls of the two air pipes 207 are connected to the inner wall of the extrusion plate 203. The inner walls of the ten plug blocks 108 are slidably connected with two pushing blocks 304, so that the rubber folding block 206 is fitted with the outer wall of the upper semicircle of the steel sleeve 104. When the rubber folding block 206 is fitted with the outer wall of the steel sleeve 104, the arc clamping block 103 continues to move, and the arc plate 1 204 and the arc plate 2 205 are affected by the extrusion force, which will push the fixing frame 1 201 to move. When the fixing frame 1 201 moves, it will drive the extrusion plate 203 to move, squeezing the gas in the moving groove 202. The squeezed gas will enter the rubber folding block 206 through the air pipe 207, causing the rubber folding block 206 to expand and squeeze the steel sleeve 104, continuously squeezing the upper semicircle of the steel sleeve 104, and providing uniform clamping force.

[0025] The pushing mechanism 3 also includes an air delivery groove 305 provided on the inner wall of the insert block 108, the inner walls of the ten sliding grooves 113 are rotatably connected with air blocking plates 306, the side walls of the spring plate 107 are fixedly connected with ten pushing rods 307, and the top and bottom of the spring plate 107 are fixedly connected with connecting rods 308; Among them, hydraulic oil is provided on the inner walls of the three oil pipelines 301, and four connecting rods 308 are grouped in pairs. The side walls of the two groups of connecting rods 308 are fixedly connected with a fixing frame 2 309. The force of the extrusion plate 203 moving is utilized. When the extrusion plate 203 moves, the piston rod 1 302 will be driven to move. When the piston rod 1 302 moves, the hydraulic oil in the oil pipeline 301 will be squeezed. The hydraulic oil will push the piston rod 2 303 to move, push the spring plate 107 close to the steel sleeve 104, and squeeze the spring return rod 109 at the same time. When the spring return rod 109 moves, at this time, since the plug block 108 has been inserted into the reinforced grid, the plug block 108 is in a stationary state. When the spring plate 107 moves, it will also drive the push rod 307 to move. When the spring return rod 109 moves, it will squeeze the gas in the sliding groove 113.

[0026] The pushing mechanism 3 also includes two beating rollers 311 arranged on the inner wall of the arc-shaped clamping block 103, the outer walls of the two beating rollers 311 are fixedly connected with a spring spring 310, the outer walls of the beating rollers 311 are rotatably connected with the inner wall of the second fixing frame 309, and the side walls of the two beating rollers 311 are fixedly connected with a gear 312; Among them, the top and bottom of the arc-shaped clamping block 103 are fixedly connected with a rack 313, and the outer walls of the two gears 312 are meshed with the side walls of the rack 313. By utilizing the force of the movement of the spring plate 107, when the spring plate 107 moves toward the steel sleeve 104, the spring plate 107 will push the fixed frame 309 to move close to the steel sleeve 104, driving the slapping roller 311 and the gear 312 to move. When the gear 312 moves, it will mesh with the rack 313, so that the gear 312 rotates during the movement, driving the slapping roller 311 to rotate. When the slapping roller 311 rotates, the clockwork spring 310 will be tightened, so that the clockwork spring 310 accumulates resilience. As the gear 312 continues to move, it will separate from the rack 313, the limit on the gear 312 disappears, and the resilience accumulated in the clockwork spring 310 will be released.

[0027] There is no limitation on the number of the above components, and relevant technicians in the field can freely set them according to actual needs, as long as the above components are installed at corresponding component connection positions with equal spacing.

[0028] The method for using the auxiliary fixing device for the steel sleeve of the shield machine includes the following steps: S1: First fix the base 101 at the hole position, then install the steel sleeve 104 on the base 101. After the steel sleeve 104 is installed, start the motor 105 to drive the bidirectional threaded rod 106 to rotate, so that the two arc-shaped clamping blocks 103 approach each other and move toward the steel sleeve 104. When the arc-shaped clamping blocks 103 move; S2: The insert block 108 will be driven to move and contact the steel sleeve 104. The insert block 108 will be squeezed and retreated, and at the same time, the spring return rod 109 will be squeezed, so that the spring return rod 109 will accumulate resilience. At this time, the inclined plate 112 will contact the blocking plate 110. Since the contact surfaces of the inclined plate 112 and the blocking plate 110 are both inclined surfaces, the blocking plate 110 will squeeze the inclined plate 112, so that the inclined plate 112 moves longitudinally. S3: Let the spring plate 107 move longitudinally to accumulate resilience. When the spring plate 107 moves longitudinally, the spring return rod 109 drives the plug 108 to move longitudinally, so that the plug 108 slides on the outer wall of the steel sleeve 104 until the plug 108 slides into the reinforced grid on the outer wall of the steel sleeve 104.

[0029] A specific application of this embodiment is as follows: when the present invention is used, the base 101 is first fixed at the position of the hole, and then the steel sleeve 104 is installed on the base 101. After the steel sleeve 104 is installed, the motor 105 is started to drive the bidirectional threaded rod 106 to rotate, so that the two arc-shaped clamping blocks 103 are close to each other and move toward the steel sleeve 104. When the arc-shaped clamping block 103 moves, it will drive the plug block 108 to move and contact the steel sleeve 104. The plug block 108 will be squeezed and then The spring plate 107 moves longitudinally, and the spring return rod 109 is pressed to accumulate the resilience. At this time, the inclined plate 112 contacts the blocking plate 110. Since the contact surfaces of the inclined plate 112 and the blocking plate 110 are both inclined surfaces, the blocking plate 110 presses the inclined plate 112 to make the inclined plate 112 move longitudinally, so that the spring plate 107 moves longitudinally to accumulate the resilience. When the spring plate 107 moves longitudinally, the spring return rod 109 drives the insert block 108 to move longitudinally, so that The plug block 108 slides on the outer wall of the steel sleeve 104 until the plug block 108 slides into the reinforced grid at the outer wall of the steel sleeve 104. At this time, the resilience of the spring return rod 109 will be released, pushing the plug block 108 into the reinforced grid between the joints of the steel sleeve 104, and plugging the steel sleeve 104. When the plug block 108 enters the reinforced grid, the spring plate 107 cannot move, and the inclined plate 112 will squeeze the blocking plate 110 to move the blocking plate 110. The spring return rod 111 is stretched to allow the arc-shaped clamping block 103 to smoothly move forward and contact the steel sleeve 104, clamp the joint of the steel sleeve 104, and further strengthen the grid by inserting the plug block 108. The insertion of the plug block 108 can effectively enhance the connection strength between the upper and lower steel sleeves 104, prevent the bolts from loosening due to vibration, and cause an unstable connection, so that the steel sleeve 104 remains stable when the shield machine is running, ensuring the stability of the connection of the steel sleeve 104; Secondly, when the arc clamping block 103 moves close to the steel sleeve 104, the arc plate 1 204 and the arc plate 2 205 will contact the upper semicircular outer wall of the steel sleeve 104, so that the arc plate 1 204 and the arc plate 2 205 are squeezed and rotated to fit the upper semicircular outer wall of the steel sleeve 104, and at the same time, the rubber folding block 206 fits the upper semicircular outer wall of the steel sleeve 104. When the rubber folding block 206 fits the outer wall of the steel sleeve 104, the arc clamping block 103 continues to move, and the arc plate 1 204 and the arc plate 205 are rotated to fit the upper semicircular outer wall of the steel sleeve 104. When the plate 205 is affected by the squeezing force, it will push the fixing frame 1 201 to move. When the fixing frame 1 201 moves, it will drive the squeezing plate 203 to move, squeezing the gas in the moving groove 202. The squeezed gas will enter the rubber folding block 206 through the gas pipe 207, so that the rubber folding block 206 will expand and squeeze the steel sleeve 104. The upper semicircle of the steel sleeve 104 is continuously squeezed to provide a uniform clamping force, so that the squeezing force of the shield machine on the steel sleeve 104 can be evenly distributed, so that the steel sleeve 104 can remain stable during use; Secondly, when the extrusion plate 203 moves, it will drive the piston rod 302 to move. When the piston rod 302 moves, it will squeeze the hydraulic oil in the oil pipe 301. The hydraulic oil will push the piston rod 303 to move, push the spring plate 107 close to the steel sleeve 104, and squeeze the spring return rod 109 at the same time. When the spring return rod 109 moves, at this time, since the plug block 108 has been inserted into the reinforced grid, the plug block 108 is in a stationary state. When the spring plate 107 moves, it will also drive the push rod 307 to move. When the spring return rod 109 moves, it will squeeze the sliding groove 1 13, at this time, the gas will be blocked by the air blocking plate 306, and as the push rod 307 moves, it will contact the air blocking plate 306, pushing the air blocking plate 306 to rotate, allowing the high-pressure gas to enter the bottom of the push block 304 through the gas delivery groove 305, pushing the push block 304 out, allowing the push block 304 to contact the enhanced grid, filling the gap between the plug block 108 and the enhanced grid, so that the plug block 108 is closely attached to the enhanced grid, making the fixation more firm, and the close contact of the plug block 108 can reduce the impact of vibration and impact on the steel sleeve 104, and improve the stability during operation; Secondly, when the spring plate 107 moves toward the steel sleeve 104, the spring plate 107 will push the fixing frame 309 to move toward the steel sleeve 104, driving the beating roller 311 and the gear 312 to move. When the gear 312 moves, it will mesh with the rack 313, causing the gear 312 to rotate during the movement, driving the beating roller 311 to rotate. When the beating roller 311 rotates, it will tighten the clockwork spring 310, so that the clockwork spring 310 accumulates resilience, and as the gear 312 continues to move, it will mesh with the rack 313. The rack 313 separates, the limit on the gear 312 disappears, and the resilience accumulated in the clockwork spring 310 is released, driving the beating roller 311 to rotate. At this time, the beating roller 104 will also contact the steel sleeve 104. When the beating roller 311 rotates, it will briefly and slightly beat the steel sleeve 104. The short-term beating can help disperse the local stress caused by clamping and reduce stress concentration. The overall structure of the steel sleeve 104 is more stable, which helps to resist the vibration generated by the operation of the shield machine during operation.

[0030] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An auxiliary fixing device for a steel sleeve of a shield machine, comprising a clamping mechanism (1), wherein the clamping mechanism (1) further comprises a base (101), the top of the base (101) is fixedly connected to a gantry (102), two arc-shaped clamping blocks (103) are arranged on the side walls of the gantry (102), and the parts contained in the two arc-shaped clamping blocks (103) are the same, characterized in that: Also includes: A laminating mechanism (2), the laminating mechanism (2) comprising a fixing frame (201) slidably connected to the inner wall of the arc-shaped clamping block (103), a moving groove (202) being provided on the inner wall of the arc-shaped clamping block (103), and an extrusion plate (203) being slidably connected to the inner wall of the moving groove (202); A pushing mechanism (3), the pushing mechanism (3) comprising three oil delivery pipes (301) fixedly connected to the side wall of the arc-shaped clamping block (103), the inner walls of the three oil delivery pipes (301) being slidably connected to piston rod 1 (302), and the inner walls of the three oil delivery pipes (301) being slidably connected to piston rod 2 (303).

2. The auxiliary fixing device for a shield machine steel sleeve according to claim 1, characterized in that: The clamping mechanism (1) further comprises a steel sleeve (104) fixedly connected to the top of the base (101); a motor (105) is fixedly connected to the side wall of the gantry (102); a bidirectional threaded rod (106) is rotatably connected to the inner wall of the gantry (102); and the side wall of the bidirectional threaded rod (106) is fixedly connected to the output end of the side wall of the motor (105); The outer wall of the bidirectional threaded rod (106) is threadedly connected to the inner wall of the arc-shaped clamping block (103), and two limit rods are fixedly connected to the side wall of the gantry (102), and the two limit rods are slidably connected to the inner wall of the arc-shaped clamping block (103).

3. The auxiliary fixing device for a shield machine steel sleeve according to claim 2, characterized in that: The clamping mechanism (1) further comprises a spring plate (107) slidably connected to the inner wall of the arc-shaped clamping block (103); ten plug blocks (108) are slidably connected to the inner wall of the arc-shaped clamping block (103); ten spring return rods (109) are fixedly connected to the side wall of the spring plate (107); sliding grooves (113) are formed on the inner walls of the ten plug blocks (108); and the inner walls of the ten sliding grooves (113) are slidably connected to the outer wall of the spring return rod (109); The top of the base (101) is slidably connected to two blocking plates (110), the inner walls of the two blocking plates (110) are slidably connected to spring return rods (111), the outer walls of the two spring return rods (111) are fixedly connected to the side walls of the gantry (102), and the side walls of the spring plate (107) are fixedly connected to an inclined panel (112).

4. The auxiliary fixing device for a shield machine steel sleeve according to claim 3, characterized in that: The laminating mechanism (2) further comprises an arc plate 1 (204) rotatably connected to the outer wall of the fixing frame 1 (201); an arc plate 2 (205) rotatably connected to the outer wall of the fixing frame 1 (201); a rubber folding block (206) is fixedly connected to the inner walls of the arc plate 1 (204) and the arc plate 2 (205); and the side walls of the three piston rods 1 (302) are fixedly connected to the side walls of the extrusion plate (203).

5. The auxiliary fixing device for a shield machine steel sleeve according to claim 4, characterized in that: The laminating mechanism (2) further comprises an air pipe (207) penetratingly connected to the outer wall of the rubber folding block (206), the outer walls of the two air pipes (207) being penetratingly connected to the inner wall of the extrusion plate (203), and the inner walls of the ten inserting blocks (108) being slidably connected to two pushing blocks (304).

6. The auxiliary fixing device for a shield machine steel sleeve according to claim 5, characterized in that: The pushing mechanism (3) further comprises an air delivery groove (305) provided on the inner wall of the insert block (108), the inner walls of the ten sliding grooves (113) are rotatably connected to air blocking plates (306), the side walls of the spring plate (107) are fixedly connected to ten pushing rods (307), and the top and bottom of the spring plate (107) are fixedly connected to connecting rods (308); The inner walls of the three oil delivery pipes (301) are provided with hydraulic oil, the four connecting rods (308) are arranged in groups of two, and the side walls of the two groups of connecting rods (308) are fixedly connected to a second fixing frame (309).

7. The auxiliary fixing device for a shield machine steel sleeve according to claim 6, characterized in that: The pushing mechanism (3) further comprises two beating rollers (311) arranged on the inner wall of the arc-shaped clamping block (103), the outer walls of the two beating rollers (311) are fixedly connected to a clockwork spring (310), the outer walls of the two beating rollers (311) are rotatably connected to the inner wall of the second fixing frame (309), and the side walls of the two beating rollers (311) are fixedly connected to a gear (312); The top and bottom of the arc-shaped clamping block (103) are fixedly connected to a rack (313), and the outer walls of the two gears (312) are meshedly connected to the side walls of the rack (313).

8. A method for using an auxiliary fixing device for a shield machine steel sleeve, using the auxiliary fixing device for a shield machine steel sleeve as claimed in claim 7, characterized in that: The following steps are included: S1: First, fix the base (101) at the position of the hole, and then install the steel sleeve (104) on the base (101). After the steel sleeve (104) is installed, start the motor (105) to drive the bidirectional threaded rod (106) to rotate, so that the two arc-shaped clamping blocks (103) approach each other and move toward the steel sleeve (104). When the arc-shaped clamping blocks (103) move; S2: The insert block (108) will be driven to move and contact the steel sleeve (104), and the insert block (108) will be squeezed and retreated, and at the same time, the spring return rod (109) will be squeezed, so that the spring return rod (109) accumulates a rebound force. At this time, the inclined plate (112) will contact the blocking plate (110). Since the contact surfaces of the inclined plate (112) and the blocking plate (110) are both inclined surfaces, the blocking plate (110) will squeeze the inclined plate (112), so that the inclined plate (112) moves longitudinally; S3: The spring plate (107) is moved longitudinally to accumulate a rebound force. When the spring plate (107) moves longitudinally, the spring return rod (109) drives the insert block (108) to move longitudinally, so that the insert block (108) slides on the outer wall of the steel sleeve (104) until the insert block (108) slides into the reinforced grid at the outer wall of the steel sleeve (104).

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