Tunnel steel arch mounting auxiliary device

Abstract

The invention discloses a tunnel steel arch mounting auxiliary device, and belongs to the technical field of tunnel construction, the tunnel steel arch mounting auxiliary device comprises a counterweight base, the top of the counterweight base is rotatably provided with a rotary mounting seat, and the top of the counterweight base is provided with a first rotating mechanism for driving the rotary mounting seat to rotate; a telescopic arm is rotationally installed in the rotary installation base, and a first hydraulic rod is installed between the telescopic arm and the balance weight base in a hinged mode. Through the arrangement of the centering positioning and supporting mechanism, the steel arch can be stably supported, and the steel arch can be centered and limited, so that the middle position of the steel arch is located between the two clamping mechanisms, and the stability of the steel arch can be guaranteed in the subsequent clamping and fixing process of the clamping mechanisms on the steel arch; and the situation that a worker holds the high-lift steel arch by hands in the whole process can be avoided, and the situation that arms of the worker are swollen and fatigue due to the fact that the worker holds the high-lift steel arch by hands for a long time is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel steel arch frame installation auxiliary device. Background Art

[0002] The tunnel structure system is mainly divided into two parts: primary support and secondary lining. The main function of the primary support is to bear the pressure of the surrounding rock and maintain the stability of the tunnel structure; the main function of the secondary lining is aesthetics and force reserve. The most important structure in the initial support of the tunnel is the steel support arch frame, which is mainly made of I-beams or grid steel arch frames. It is produced in units in the processing plant and assembled and installed manually at the construction site. In the process of erecting the steel support arch frame, it is usually necessary to use the steel support arch frame installation auxiliary device. Using large equipment (such as arch frame installation machine) for fixing in the limited space of a small tunnel is not conducive to construction operations and increases the workload. Therefore, when installing the steel support arch frame in a small tunnel, small installation auxiliary devices are often used.

[0003] For example, the Chinese patent with application number: 202410261683.X discloses a tunnel steel arch frame installation auxiliary device, which belongs to the field of tunnel construction technology. The tunnel steel arch frame installation auxiliary device includes a main column with adjustable length, a secondary column is inserted at the top of the main column, a column spring is arranged between the main column and the secondary column, lower clamping blocks are slidably arranged on both sides of the top of the main column, a support rod is penetrated at the outer end of the lower clamping block, an upper clamping block is installed at the top of the support rod, a threaded rod is connected to the inner side of the support rod, the threaded rod is located below the lower clamping block, a threaded sleeve is provided on the inner end of the threaded rod, and the threaded sleeve is rotatably installed on the secondary column, a first strip-shaped through groove is opened on both sides of the main column, the threaded sleeve passes through the first strip-shaped through groove, and a tooth groove distributed along the circumferential direction is opened on the outside of the threaded sleeve, and a rack for engaging the tooth groove is fixedly arranged on the side of the main column. The invention has the advantages of realizing rapid installation of steel supports, saving labor, and improving construction efficiency.

[0004] When the above patent is actually used, it lacks the function of centering positioning support, and cannot center-position and assist in supporting the steel arch frame to be installed, which is not conducive to the subsequent efficient centering clamping of the steel arch frame. When the workers clamp and fix the steel arch frame to be installed on the fixing auxiliary device, they need to hold the steel arch frame high for a long time, and then use the clamping parts of the fixing auxiliary device to clamp and fix the steel arch frame before performing subsequent installation operations of the steel arch frame. During the clamping and fixing process of the steel arch frame, the workers hold the steel arch frame high for a long time, which not only easily causes soreness and fatigue of the arms, but is not conducive to long-term installation of the steel arch frame. In addition, it is difficult for the workers to maintain the stability of the steel arch frame when holding the high-raised steel arch frame, and it is easy to tilt, which is not conducive to the smooth clamping and fixing of the steel arch frame to be installed by the fixing auxiliary device. It may be clamped crookedly and it is difficult to center-clamp the steel arch frame to be installed. If the clamping position is not the middle position of the steel arch frame, the position of the steel arch frame has to be repeatedly adjusted during the subsequent installation, which is not conducive to the efficient installation of the steel arch frame and affects the installation efficiency of the steel arch frame.

[0005] Therefore, it is necessary to provide a tunnel steel arch frame installation auxiliary device to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a tunnel steel arch installation auxiliary device to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tunnel steel arch frame installation auxiliary device, including a counterweight base, a rotating mounting seat is rotatably installed on the top of the counterweight base, and a rotating mechanism 1 for driving the rotating mounting seat to rotate is arranged on the top of the counterweight base, a telescopic arm is rotatably installed inside the rotating mounting seat, a hydraulic rod 1 is hingedly installed between the telescopic arm and the counterweight base, and a rotating mechanism 2 is fixedly installed on one end of the telescopic arm away from the rotating mounting seat, a double-axis hydraulic rod is fixedly installed on the side of the rotating mechanism 2 away from the telescopic arm, a clamping mechanism is fixedly installed on the two piston rods of the double-axis hydraulic rod, and the rotating mechanism 2 is used to drive the two clamping mechanisms to rotate;

[0008] A centering positioning support mechanism is fixedly installed on the top of the counterweight base and on both sides of the clamping mechanism, and the centering positioning support mechanism is used to center the steel arch frame and provide auxiliary support;

[0009] By setting up two center positioning support mechanisms, the steel arch frame can be stably supported and can be center limited so that the middle position of the steel arch frame is between the two clamping mechanisms. In this way, during the process of clamping and fixing the steel arch frame by the subsequent clamping mechanisms, the stability of the steel arch frame can be guaranteed, so that the subsequent clamping mechanisms can complete the center clamping and fixing of the steel arch frame at one time, and workers can avoid holding the steel arch frame in their hands throughout the whole process, thereby reducing the workload of workers and avoiding soreness and fatigue of the arms caused by workers holding the steel arch frame for a long time.

[0010] As a further description of the above technical solution: the rotating mechanism 1 includes a rotating motor 1 fixedly mounted on the top of the counterweight base, the output end of the rotating motor 1 is fixedly connected to a rotating shaft 1, the outer surface of the rotating shaft 1 is fixedly sleeved with a worm gear 1, the outer surface of the worm gear 1 is meshed with a worm wheel 1, and the worm wheel 1 is fixedly sleeved on the outer surface of the rotating mounting seat. The rotating mechanism 1 is used to drive the rotating mounting seat to adjust the horizontal angle, thereby indirectly adjusting the horizontal installation angle of the steel arch frame through the cooperation of structures such as the telescopic arm and the clamping mechanism.

[0011] As a further description of the above technical solution: the telescopic arm includes a support arm rotatably mounted inside a rotating mounting seat, an end of the inner wall of the support arm close to the rotating mounting seat is fixedly connected to a load-bearing frame, a side of the load-bearing frame close to the rotating mounting seat is fixedly mounted with a driving motor, an output end of the driving motor is fixedly connected to a threaded rod, an outer surface of the threaded rod is threadedly connected to a moving block, the moving block is slidably mounted inside the support arm, and a moving arm is fixedly mounted on a side of the moving block away from the load-bearing frame, and the setting of the telescopic arm can drive the clamping mechanism to clamp and fix the steel arch frame to adjust its position along the length direction of the telescopic arm.

[0012] As a further description of the above technical solution: the rotating mechanism 2 includes a fixed frame fixedly mounted on an end of the moving arm away from the rotating mounting seat, a rotating motor 2 is fixedly mounted on the top of the fixed frame, the output end of the rotating motor 2 is fixedly connected to a rotating shaft 2, the outer surface of the rotating shaft 2 is fixedly sleeved with a worm 2, the outer surface of the worm 2 is meshed with a worm wheel 2, the interior of the worm wheel 2 is coaxially fixedly connected with a rotating shaft 3, the rotating shaft 3 is rotatably mounted on the inner wall of the fixed frame, and the other end of the rotating shaft 3 is fixedly connected to the mounting frame, the double-axis hydraulic rod is fixedly mounted on a side of the mounting frame away from the fixed frame, and the rotating mechanism 2 is arranged to drive the double-axis hydraulic rod and the clamping mechanism to rotate, thereby realizing the vertical angle adjustment of the steel arch frame clamped and fixed on the clamping mechanism.

[0013] As a further description of the above technical solution: the clamping mechanism includes a movable plate, which is fixedly mounted on the piston rod of the dual-axis hydraulic rod, and an arc-shaped clamping plate is fixedly connected to the movable plate, an air injection component is fixedly installed inside the arc-shaped clamping plate, and rubber clamping blocks are fixedly connected on both sides of the arc-shaped clamping plate, an inflation opening is opened on the side of the rubber clamping block close to the arc-shaped clamping plate, and a rubber block is fixedly connected on the side of the arc-shaped clamping plate away from the movable plate.

[0014] As a further description of the above technical solution: the gas injection assembly includes a piston cylinder fixedly installed through an arc-shaped clamping plate, the interior of the piston cylinder is movably connected with a piston block, and the piston block is interference fit with the inner wall of the piston cylinder, the side of the piston block away from the arc-shaped clamping plate is fixedly connected with an extrusion rod, the other end of the extrusion rod movably passes through the piston cylinder and extends to the outside of the piston cylinder, and the side of the piston block close to the arc-shaped clamping plate is fixedly connected with a return spring, the other end of the return spring is fixedly connected to the inner wall of the piston cylinder, and the end of the outer surface of the piston cylinder close to the arc-shaped clamping plate is fixedly connected to two gas injection pipes.

[0015] As a further description of the above technical solution: the two gas injection pipes are respectively connected to the inflation openings on the two arc-shaped clamping plates.

[0016] As a further description of the above technical solution: the centering positioning support mechanism includes a horizontal frame fixedly installed on the top of the counterweight base, the horizontal frame is rotatably installed with a rotating shaft four, the top of the rotating shaft four is fixedly connected with an arc-shaped centering positioning support frame, the outer surface of the rotating shaft four and located between the horizontal frame and the arc-shaped centering positioning support frame is fixedly connected with a fan-shaped limit plate, the fan-shaped limit plate is provided with two limit holes, and the limit assembly is fixedly installed on the horizontal frame.

[0017] As a further description of the above technical solution: the limit assembly includes a fixed block fixedly installed on a horizontal frame, a limit pin is movably installed on the fixed block, the bottom end of the limit pin is fixedly connected with a pull block, and a limit spring is fixedly connected between the top of the pull block and the bottom of the fixed block and located on the outside of the limit pin.

[0018] As a further description of the above technical solution: movable wheels are arranged at the four corners of the bottom of the counterweight base, and hydraulic support mechanisms are fixedly installed on all four sides of the counterweight base. The hydraulic support mechanism includes two hydraulic rods fixedly installed on the counterweight base, and the telescopic end of the two hydraulic rods is fixedly connected to a support block.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention can stably support the steel arch frame and center the steel arch frame by setting two centering positioning support mechanisms, so that the middle position of the steel arch frame is between the two clamping mechanisms, so that in the process of clamping and fixing the steel arch frame by the subsequent clamping mechanisms, the stability of the steel arch frame can be guaranteed, so that the subsequent clamping mechanisms can complete the centering clamping and fixing of the steel arch frame at one time, and it can also avoid workers holding up the steel arch frame throughout the whole process, thereby reducing the workers' workload and avoiding soreness and fatigue of the arms caused by workers holding up the steel arch frame for a long time.

[0021] 2. The present invention drives the two arc-shaped clamping plates to move to opposite sides through the contraction of the double-axis hydraulic rod. In the process of clamping and fixing the steel arch frame on the arc-shaped center positioning support frame, the air injection component can be driven to inject air into the inflation opening inside the rubber clamping block, so that the internal pressure inside the rubber clamping block increases, and then the rubber clamping block expands to limit and fix the steel arch frame. The two arc-shaped clamping plates move to opposite sides and can also clamp and fix the steel arch frame, thereby realizing double clamping and fixing of the steel arch frame, improving the effect of clamping and fixing the steel arch frame, and the setting of the rubber block can increase the friction between the arc-shaped clamping plate and the steel arch frame, further improving the clamping stability of the steel arch frame.

[0022] 3. The present invention can adjust the steel arch frame to be installed, which is clamped and fixed by the clamping mechanism, at multiple angles through the arrangement of rotating mechanism 1, rotating mechanism 2, hydraulic rod 1 and telescopic arm, so as to assist in the installation of the steel arch frame on the top or side wall of the tunnel according to installation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the overall structure of the tunnel steel arch frame installation auxiliary device proposed by the present invention from another angle;

[0025] Figure 3 A three-dimensional schematic diagram of the structure of the counterweight base and the rotating mounting seat of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0026] Figure 4 A three-dimensional schematic diagram of the hydraulic rod 1 and telescopic arm of the tunnel steel arch installation auxiliary device proposed by the present invention;

[0027] Figure 5 A three-dimensional schematic diagram of the telescopic arm structure of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0028] Figure 6 A three-dimensional schematic diagram of the structures such as the double-axis hydraulic rod and the movable plate of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0029] Figure 7 This is an exploded view of the structures of the worm gear 2 and worm gear 2 of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0030] Figure 8 A schematic longitudinal section diagram of the structure of the arc-shaped clamping plate and the gas injection assembly of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0031] Fig. 9 A three-dimensional schematic diagram of the rotating mechanism 1 and the cross frame and other structures of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0032] Fig.10 A bottom view of the centering positioning support mechanism of the tunnel steel arch frame installation auxiliary device proposed by the present invention;

[0033] Fig.11 This is a three-dimensional schematic diagram of the limiting component structure of the tunnel steel arch frame installation auxiliary device proposed by the present invention.

[0034] In the figure:

[0035] 1. Counterweight base; 2. Rotating mounting base;

[0036] 3. Rotating mechanism 1; 301. Rotating motor 1; 302. Rotating shaft 1; 303. Worm 1; 304. Worm wheel 1;

[0037] 4. telescopic arm; 401. supporting arm; 402. load-bearing frame; 403. driving motor; 404. threaded rod; 405. moving block; 406. moving arm;

[0038] 5. Hydraulic rod 1;

[0039] 6. Rotating mechanism 2; 601. Fixed frame; 602. Rotating motor 2; 603. Rotating shaft 2; 604. Worm 2; 605. Worm wheel 2; 606. Rotating shaft 3; 607. Mounting frame;

[0040] 7. Double-axis hydraulic rod;

[0041] 8. Clamping mechanism; 801. Moving plate; 802. Arc clamping plate; 803. Gas injection assembly; 8031. Piston cylinder; 8032. Piston block; 8033. Extrusion rod; 8034. Return spring; 8035. Gas injection pipe; 804. Rubber clamping block; 805. Gas filling opening; 806. Rubber block;

[0042] 9. Centering positioning support mechanism; 901. Horizontal frame; 902. Rotating shaft four; 903. Arc-shaped centering positioning support frame; 904. Fan-shaped limiting plate; 905. Limiting jack; 906. Limiting assembly; 9061. Fixed block; 9062. Limiting pin; 9063. Pulling block; 9064. Limiting spring;

[0043] 10. Moving wheels;

[0044] 11. Hydraulic support mechanism; 1101. Hydraulic rod 2; 1102. Support block. DETAILED DESCRIPTION

[0045] 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.

[0046] As attached Figure 1 To Attachment Fig.11 As shown:

[0047] Embodiment 1: The present invention provides a tunnel steel arch installation auxiliary device, comprising a counterweight base 1, a rotating mounting seat 2 is rotatably mounted on the top of the counterweight base 1, and a rotating mechanism 3 for driving the rotating mounting seat 2 to rotate is arranged on the top of the counterweight base 1, a telescopic arm 4 is rotatably mounted inside the rotating mounting seat 2, a hydraulic rod 5 is hingedly mounted between the telescopic arm 4 and the counterweight base 1, a piston end of the hydraulic rod 5 located outside the cylinder body is hinged to the telescopic arm 4, and one end of the cylinder body of the hydraulic rod 5 is hinged to the counterweight base 1, and a rotating mechanism 2 6 is fixedly mounted on one end of the telescopic arm 4 away from the rotating mounting seat 2, a double-axis hydraulic rod 7 is fixedly mounted on the side of the rotating mechanism 2 6 away from the telescopic arm 4, and a clamping mechanism 8 is fixedly mounted on the two piston rods of the double-axis hydraulic rod 7, and the rotating mechanism 2 6 is used to drive the two clamping mechanisms 8 to rotate;

[0048] A centering positioning support mechanism 9 is fixedly installed on the top of the counterweight base 1 and on both sides of the clamping mechanism 8. The centering positioning support mechanism 9 is used for centering and auxiliary supporting the steel arch frame.

[0049] The rotating mechanism 3 includes a rotating motor 301 fixedly mounted on the top of the counterweight base 1, the output end of the rotating motor 301 is fixedly connected to a rotating shaft 302, the outer surface of the rotating shaft 302 is fixedly sleeved with a worm 303, the outer surface of the worm 303 is meshed with a worm wheel 304, and the worm wheel 304 is fixedly sleeved on the outer surface of the rotating mounting seat 2. By starting the rotating motor 301, the output end thereof rotates clockwise or counterclockwise, driving the rotating shaft 302 and the worm 303 to rotate, and then driving the worm wheel 304 meshed with the worm 303 to rotate, thereby driving the rotating mounting seat 2 to rotate, thereby indirectly driving the steel arch frame to adjust the horizontal angle.

[0050] The telescopic arm 4 includes a support arm 401 rotatably mounted inside the rotating mounting seat 2, a load-bearing frame 402 is fixedly connected to one end of the inner wall of the support arm 401 close to the rotating mounting seat 2, a driving motor 403 is fixedly mounted on one side of the load-bearing frame 402 close to the rotating mounting seat 2, a threaded rod 404 is fixedly connected to the output end of the driving motor 403, a moving block 405 is threadedly connected to the outer surface of the threaded rod 404, the moving block 405 is slidably mounted inside the support arm 401, and a moving arm 406 is fixedly mounted on one side of the moving block 405 away from the load-bearing frame 402;

[0051] By starting the driving motor 403 to rotate its output end clockwise or counterclockwise, the threaded rod 404 is driven to rotate, and under the limiting action of the support arm 401 on the moving block 405, the moving block 405 moves along the length direction of the support arm 401, thereby driving the moving arm 406 to move, thereby indirectly driving the steel arch frame to move along the length direction of the telescopic arm 4.

[0052] The clamping mechanism 8 includes a movable plate 801, which is fixedly mounted on the piston rod of the double-axis hydraulic rod 7, and an arc-shaped clamping plate 802 is fixedly connected to the movable plate 801, and an air injection component 803 is fixedly installed inside the arc-shaped clamping plate 802, and both sides of the arc-shaped clamping plate 802 are fixedly connected to rubber clamping blocks 804, and a charging opening 805 is provided on the side of the rubber clamping block 804 close to the arc-shaped clamping plate 802, and a rubber block 806 is fixedly connected to the side of the arc-shaped clamping plate 802 away from the movable plate 801, and the air injection component 803 includes a piston cylinder 8031 ​​fixedly installed on the arc-shaped clamping plate 802, and a piston block 8032 is movably connected inside the piston cylinder 8031, and The piston block 8032 is arranged with interference fit with the inner wall of the piston cylinder 8031, and the side of the piston block 8032 away from the arc clamping plate 802 is fixedly connected with an extrusion rod 8033, and the other end of the extrusion rod 8033 movably penetrates the piston cylinder 8031 ​​and extends to the outside of the piston cylinder 8031, and the side of the piston block 8032 close to the arc clamping plate 802 is fixedly connected with a return spring 8034, and the other end of the return spring 8034 is fixedly connected to the inner wall of the piston cylinder 8031, and one end of the outer surface of the piston cylinder 8031 ​​close to the arc clamping plate 802 is fixedly connected with two gas injection pipes 8035, and the two gas injection pipes 8035 are respectively connected with the inflation openings 805 on the two arc clamping plates 802;

[0053] The contraction of the dual-axis hydraulic rod 7 drives the two arc-shaped clamping plates 802 to move to the opposite side. In the process of clamping and fixing the steel arch frame on the arc-shaped center positioning support frame 903, the gas injection component 803 can be driven to inject gas into the inflation opening 805 inside the rubber clamping block 804, so that the internal pressure inside the rubber clamping block 804 increases, and then the rubber clamping block 804 expands to limit and fix the steel arch frame. The two arc-shaped clamping plates 802 move to the opposite side and can also clamp and fix the steel arch frame, thereby realizing double clamping and fixing of the steel arch frame, improving the effect of clamping and fixing the steel arch frame, and the setting of the rubber block 806 can increase the friction between the arc-shaped clamping plate 802 and the steel arch frame, further improving the clamping stability of the steel arch frame.

[0054] The centering positioning support mechanism 9 includes a cross frame 901 fixedly installed on the top of the counterweight base 1, and the cross frame 901 is rotatably installed with a rotating shaft 4 902, and the top of the rotating shaft 4 902 is fixedly connected with an arc-shaped centering positioning support frame 903. The upper part of the longitudinal section of the arc-shaped centering positioning support frame 903 is trapezoidal, and the lower part is rectangular (the length of the rectangular part is less than the width of the inner wall of the I-shaped steel arch frame, so that when the hydraulic rod 1 5 is extended to lift and rotate the telescopic arm 4 and the steel arch frame upward, they are not restricted by the arc-shaped centering positioning support frame 903). The outer surface of the rotating shaft 4 902 is fixedly connected with a fan-shaped limit plate 904 located between the cross frame 901 and the arc-shaped centering positioning support frame 903. The fan-shaped limit plate 904 is provided with two limit sockets 905, and a limit component 906 is fixedly installed on the cross frame 901.

[0055] The limiting assembly 906 includes a fixing block 9061 fixedly mounted on the horizontal frame 901, a limiting latch 9062 movably penetrated and installed on the fixing block 9061, a pull block 9063 is fixedly connected to the bottom end of the limiting latch 9062, and a limiting spring 9064 is fixedly connected between the top of the pull block 9063 and the bottom of the fixing block 9061 and located outside the limiting latch 9062;

[0056] When the device is not needed for the installation of the steel arch frame, the worker holds the pull block 9063 and pulls it down, driving the limit pin 9062 to withdraw from the limit socket 905, so that the limit pin 9062 releases the limit fixation on the fan-shaped limit plate 904. At this time, the arc-shaped center positioning support frame 903 is rotated toward the side close to the counterweight base 1, and the pull block 9063 is released during the rotation process. The limit spring 9064 pulls the limit pin 9062 and the fan-shaped limit plate 904 through the elastic force of the limit spring When the other limiting socket 905 on the fan-shaped limiting plate 904 rotates to be opposite to the limiting pin 9062, the limiting pin 9062 is pulled into the limiting socket 905 by the elastic force of the limiting spring 9064, so that the arc-shaped centering positioning support frame 903 is once again limited and fixed by the limiting pin 9062, completing the folding and storage of the arc-shaped centering positioning support frame 903, reducing the overall volume of the device, and facilitating the transportation, movement or storage of the device.

[0057] Working principle: When it is necessary to install the steel arch frame in the limited space of a small tunnel, due to the small space in the tunnel, large equipment (such as arch frame installation machine) cannot be brought in for operation, and the small tunnel steel arch frame installation auxiliary device is often used to install the steel arch frame;

[0058] When using the device for auxiliary installation of the steel arch frame, the staff first places the steel arch frame between the two arc-shaped center positioning support frames 903, supports the steel arch frame through the two arc-shaped center positioning support frames 903, and limits the two ends of the inner wall of the steel arch frame to be installed at the two ends of the arc-shaped center positioning support frames 903, so that the middle position of the steel arch frame is just between the two clamping mechanisms 8, so that the arc-shaped center positioning support frame 903 can not only stably support the steel arch frame, so that in the process of subsequent clamping and fixing of the steel arch frame by the clamping mechanism 8, the stability of the steel arch frame can be guaranteed, so that the subsequent clamping mechanism 8 can complete the clamping and fixing of the steel arch frame at one time, and can also avoid workers holding the steel arch frame in the hand throughout the whole process, reducing the workload of workers and avoiding workers holding the steel arch frame for a long time. The soreness and fatigue of the arms caused by holding the steel arch frame in the hand, and the coordinated use of the two arc-shaped center positioning support frames can also play the effect of centering the steel arch frame, so that the subsequent clamping mechanism 8 can smoothly center the steel arch frame;

[0059] Subsequently, by starting the double-axis hydraulic rod 7, the two piston rods thereof are retracted to the opposite side, driving the two movable plates 801 to move to the opposite side, so that the two clamping mechanisms 8 are moved to the inside of the steel arch frame, and the squeezing rod 8033 in the clamping mechanism 8 first abuts against the inner wall of the steel arch frame, and then the piston rod of the double-axis hydraulic rod 7 continues to retract. Due to the limitation of the squeezing rod 8033 by the steel arch frame, it cannot move further, so that the piston cylinder 8031 ​​moves relative to the piston block 8032, and the piston block 8032 injects the gas in the piston cylinder 8031 ​​through the gas injection pipe 8035. The rubber block 806 is inserted into the inflation opening 805 inside the rubber clamping block 804, thereby increasing the pressure inside the inflation opening 805 inside the rubber clamping block 804, thereby causing the rubber clamping block 804 to expand and limit the steel arch frame. At the same time, the two arc-shaped clamping plates 802 move to the opposite side, and can also clamp and fix the steel arch frame, thereby realizing double clamping and fixing of the steel arch frame, improving the effect of clamping and fixing the steel arch frame, and the setting of the rubber block 806 can increase the friction between the arc-shaped clamping plate 802 and the steel arch frame, further improving the clamping stability of the steel arch frame;

[0060] After the clamping mechanism 8 clamps and fixes the steel arch frame in the center, the extension of the hydraulic rod 1 5 can push the telescopic arm 4 to rotate upward, and the setting of the telescopic arm 4 can drive the steel arch frame to move along the length direction of the telescopic arm 4. The setting of the rotating mechanism 1 3 can drive the rotating mounting seat 2, the telescopic arm 4, the clamping mechanism 8 and the steel arch frame to be installed to rotate in the horizontal direction, and the setting of the rotating mechanism 2 6 can drive the double-axis hydraulic rod 7, the clamping mechanism 8 and the steel arch frame to be installed to rotate in the vertical direction, so as to adjust the steel arch frame to be installed to a suitable position for installation according to installation requirements;

[0061] When installing the steel arch frame in actual application, the rotating mounting seat 2 is aligned with the position of the steel arch frame to be installed. After the steel arch frame to be installed is clamped and fixed in the center by the clamping mechanism 8, the telescopic arm 4 is pushed up to an appropriate height by the hydraulic rod 1 5, so that the position of the steel arch frame to be installed is on the extension line of the telescopic arm 4, and then the horizontal and vertical angles of the steel arch frame are adjusted by the rotating mechanism 1 3 and the rotating mechanism 2 6 to make it opposite to the position of the steel arch frame to be installed. Subsequently, the steel arch frame is driven to move to the desired installation position by the extension of the telescopic arm 4 to carry out the installation operation of the steel arch frame.

[0062] Embodiment 2: This embodiment is basically the same as the previous embodiment, with the difference that the rotating mechanism 2 6 includes a fixed frame 601 fixedly mounted on the end of the movable arm 406 away from the rotating mounting seat 2, a rotating motor 2 602 is fixedly mounted on the top of the fixed frame 601, the output end of the rotating motor 2 602 is fixedly connected with a rotating shaft 2 603, a worm 2 604 is fixedly sleeved on the outer surface of the rotating shaft 2 603, a worm 2 604 is meshed with a worm wheel 2 605 on the outer surface of the worm 2 604, a rotating shaft 3 606 is coaxially fixedly connected inside the worm wheel 2 605, the rotating shaft 3 606 is rotatably mounted on the inner wall of the fixed frame 601, and the other end of the rotating shaft 3 606 is fixedly connected to a mounting frame 607, and the dual-axis hydraulic rod 7 is fixedly mounted on the side of the mounting frame 607 away from the fixed frame 601.

[0063] By rotating the output end of the second rotating motor 602 clockwise or counterclockwise, the second rotating shaft 603 and the second worm 604 are driven to rotate synchronously, and the second worm wheel 605 meshing with the second worm 604 is driven to rotate synchronously, thereby driving the third rotating shaft 606 and the mounting frame 607 to rotate, thereby driving the dual-axis hydraulic rod 7, the clamping mechanism 8 and the steel arch frame to rotate, so as to realize the vertical angle adjustment of the steel arch frame.

[0064] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that movable wheels 10 are provided at the four corners of the bottom of the counterweight base 1, and hydraulic support mechanisms 11 are fixedly installed on all four sides of the counterweight base 1. The hydraulic support mechanism 11 includes a hydraulic rod 1101 fixedly installed on the counterweight base 1, and the telescopic end of the hydraulic rod 1101 is fixedly connected to a support block 1102.

[0065] The arrangement of the moving wheel 10 facilitates the movement of the installation auxiliary device. When the installation auxiliary device is moved to the working area, the support block 1102 is driven downward by extending the hydraulic rod 1101 until the support block 1102 abuts against the tunnel surface. The hydraulic rod 1101 continues to extend to prop the moving wheel 10 off the ground, thereby improving the stability of the installation auxiliary device and facilitating the smooth installation of the steel arch frame using the fixed auxiliary device.

[0066] 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 tunnel steel arch installation auxiliary device, comprising a counterweight base (1), characterized in that: A rotating mounting seat (2) is rotatably mounted on the top of the counterweight base (1), and a rotating mechanism (3) for driving the rotating mounting seat (2) to rotate is arranged on the top of the counterweight base (1), a telescopic arm (4) is rotatably mounted inside the rotating mounting seat (2), a hydraulic rod (5) is hingedly mounted between the telescopic arm (4) and the counterweight base (1), and a rotating mechanism (6) is fixedly mounted on one end of the telescopic arm (4) away from the rotating mounting seat (2), a double-axis hydraulic rod (7) is fixedly mounted on the side of the rotating mechanism (6) away from the telescopic arm (4), a clamping mechanism (8) is fixedly mounted on the two piston rods of the double-axis hydraulic rod (7), and the rotating mechanism (6) is used to drive the two clamping mechanisms (8) to rotate; A centering positioning support mechanism (9) is fixedly installed on the top of the counterweight base (1) and on both sides of the clamping mechanism (8), and the centering positioning support mechanism (9) is used to perform centering positioning and auxiliary support on the steel arch frame.

2. The tunnel steel arch installation auxiliary device according to claim 1 is characterized in that: The rotating mechanism (3) comprises a rotating motor (301) fixedly mounted on the top of the counterweight base (1); the output end of the rotating motor (301) is fixedly connected to a rotating shaft (302); a worm (303) is fixedly sleeved on the outer surface of the rotating shaft (302); a worm gear (304) is meshed on the outer surface of the worm gear (303); and the worm gear (304) is fixedly sleeved on the outer surface of the rotating mounting seat (2).

3. The tunnel steel arch installation auxiliary device according to claim 1 is characterized in that: The telescopic arm (4) comprises a support arm (401) rotatably mounted inside a rotating mounting seat (2); an end of an inner wall of the support arm (401) close to the rotating mounting seat (2) is fixedly connected to a load-bearing frame (402); a driving motor (403) is fixedly mounted on a side of the load-bearing frame (402) close to the rotating mounting seat (2); an output end of the driving motor (403) is fixedly connected to a threaded rod (404); an outer surface of the threaded rod (404) is threadedly connected to a moving block (405); the moving block (405) is slidably mounted inside the support arm (401); and a moving arm (406) is fixedly mounted on a side of the moving block (405) away from the load-bearing frame (402).

4. The tunnel steel arch installation auxiliary device according to claim 3 is characterized in that: The second rotating mechanism (6) comprises a fixed frame (601) fixedly mounted on one end of the moving arm (406) away from the rotating mounting seat (2); a second rotating motor (602) is fixedly mounted on the top of the fixed frame (601); an output end of the second rotating motor (602) is fixedly connected to a second rotating shaft (603); a second worm (604) is fixedly sleeved on the outer surface of the second rotating shaft (603); a second worm gear (605) is meshed on the outer surface of the second worm gear (604); a third rotating shaft (606) is coaxially fixedly connected inside the second worm gear (605); the third rotating shaft (606) is rotatably mounted on the inner wall of the fixed frame (601); and the other end of the third rotating shaft (606) is fixedly connected to a mounting frame (607); and the double-axis hydraulic rod (7) is fixedly mounted on a side of the mounting frame (607) away from the fixed frame (601).

5. The tunnel steel arch installation auxiliary device according to claim 1 is characterized in that: The clamping mechanism (8) comprises a movable plate (801), wherein the movable plate (801) is fixedly mounted on the piston rod of the dual-axis hydraulic rod (7), an arc-shaped clamping plate (802) is fixedly connected to the movable plate (801), an air injection assembly (803) is fixedly installed and penetrated inside the arc-shaped clamping plate (802), and rubber clamping blocks (804) are fixedly connected to both sides of the arc-shaped clamping plate (802), an air filling opening (805) is provided on a side of the rubber clamping block (804) close to the arc-shaped clamping plate (802), and a rubber block (806) is fixedly connected to a side of the arc-shaped clamping plate (802) away from the movable plate (801).

6. The tunnel steel arch installation auxiliary device according to claim 5 is characterized in that: The gas injection assembly (803) includes a piston cylinder (8031) fixedly installed through the arc-shaped clamping plate (802), the interior of the piston cylinder (8031) is movably connected with a piston block (8032), and the piston block (8032) is arranged with an interference fit with the inner wall of the piston cylinder (8031), the side of the piston block (8032) away from the arc-shaped clamping plate (802) is fixedly connected with an extrusion rod (8033), the other end of the extrusion rod (8033) movably passes through the piston cylinder (8031) and extends to the outside of the piston cylinder (8031), and the side of the piston block (8032) close to the arc-shaped clamping plate (802) is fixedly connected with a return spring (8034), the other end of the return spring (8034) is fixedly connected to the inner wall of the piston cylinder (8031), and the outer surface of the piston cylinder (8031) is fixedly connected to one end close to the arc-shaped clamping plate (802) with two gas injection pipes (8035).

7. The tunnel steel arch installation auxiliary device according to claim 6 is characterized in that: The two gas injection pipes (8035) are respectively connected to the gas charging openings (805) on the two arc-shaped clamping plates (802).

8. The tunnel steel arch installation auxiliary device according to claim 1 is characterized in that: The centering positioning support mechanism (9) comprises a cross frame (901) fixedly mounted on the top of the counterweight base (1); the cross frame (901) is rotatably mounted with a rotating shaft (902); the top of the rotating shaft (902) is fixedly connected with an arc-shaped centering positioning support frame (903); the outer surface of the rotating shaft (902) is fixedly connected with a fan-shaped limit plate (904) located between the cross frame (901) and the arc-shaped centering positioning support frame (903); the fan-shaped limit plate (904) is provided with two limit plug holes (905); and a limit assembly (906) is fixedly mounted on the cross frame (901).

9. The tunnel steel arch installation auxiliary device according to claim 8, characterized in that: The limit assembly (906) comprises a fixed block (9061) fixedly mounted on the cross frame (901); a limit pin (9062) is movably installed on the fixed block (9061); a pull block (9063) is fixedly connected to the bottom end of the limit pin (9062); a limit spring (9064) is fixedly connected between the top of the pull block (9063) and the bottom of the fixed block (9061) and located on the outside of the limit pin (9062).

10. The tunnel steel arch installation auxiliary device according to claim 1, characterized in that: The four corners of the bottom of the counterweight base (1) are provided with movable wheels (10), and hydraulic support mechanisms (11) are fixedly installed around the counterweight base (1), and the hydraulic support mechanism (11) comprises a second hydraulic rod (1101) fixedly installed on the counterweight base (1), and the telescopic end of the second hydraulic rod (1101) is fixedly connected to a support block (1102).

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