Tunnel track laying machine and hydraulic cylinder support arm for track laying machine

Abstract

A tunnel track laying machine and a hydraulic cylinder support arm for the track laying machine, including a hydraulic cylinder support arm for the tunnel track laying machine and an auxiliary track laying machine, the tunnel track laying machine includes a lower end beam arranged at intervals horizontally, the bottom ends of the two ends of the lower end beam are respectively provided with a walking mechanism, the top end of the lower end beam is fixed with a vertically arranged support leg, the top end of the support leg is fixed with an upper end beam parallel to the lower end beam, a main beam of the track laying machine is arranged between the two upper end beams, the two ends of the main beam are respectively fixed to the upper end of the upper end beam, the bottom end of the main beam is fixed with a support beam arranged at intervals in parallel, and a lifting mechanism is arranged on the main beam; the hydraulic cylinder support arm includes a rectangular chassis, the four corners of the top end of the chassis are provided with a lower support arm, a hydraulic cylinder is arranged in the lower support arm, the hydraulic cylinder is hinged to the bottom end of the lower support arm, and the free end of the hydraulic cylinder is hinged to the bottom end of the upper support arm. The invention has a simple structure, is easy to operate, and improves the working efficiency of tunnel track laying.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel lifting machinery design, in particular to a tunnel track laying machine and a hydraulic cylinder support arm for the track laying machine. Background Art

[0002] In the process of tunnel traffic construction, the track paving project is in the middle of the civil engineering project and the equipment installation project in terms of the construction schedule. It is the next process of the civil engineering project and the first process of other equipment installation projects. The progress of tunnel track paving has a huge impact on the progress of subsequent equipment installation and commissioning. Among the various processes of tunnel track installation engineering construction, track laying and concrete pouring in the tunnel are key processes, and are also the most important and difficult to control part of the production progress. As the most critical equipment in this link, the technical performance of the tunnel track laying machine plays a vital role in the smooth progress of the entire operation process. At present, the forms of the roadbed in the tunnel generally alternate between integral roadbed, T-type sleeper roadbed, steel spring floating plate roadbed, etc.; the main changes in tunnel structure are: shield, horseshoe, rectangle, platform, civil air defense door, etc. In order to adapt to various tunnel structures and roadbed forms, the structure and span of the tunnel track laying machine must be changed accordingly to achieve machine laying. The space in the tunnel is small, and the tunnel track laying machine has many unfavorable factors such as many dangerous factors, inconvenient operation, and long operation time when changing the span and structure in the tunnel. Once the tunnel track laying machine in the tunnel stops using, the entire track laying process will stagnate, resulting in idle work. In the existing technical center, the tunnel track laying machine needs to be lifted by a gantry crane to change the span when changing the span, or the tunnel track laying machine needs to be disassembled when changing the span, which is very inefficient; and the working face often changes during the construction process. Each time the work face changes, the gantry crane needs to be disassembled and reassembled, affecting the progress of the project. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a tunnel track laying machine and a hydraulic cylinder support arm for the track laying machine. The track laying machine can automatically change the span in the tunnel, raise or lower the height of the track laying machine to adapt to the changeable construction conditions in the tunnel, and at the same time can adjust the inclination angle of the wheels to adapt to the arc angle of the inner wall of the tunnel.

[0004] The technical solution adopted by the present invention to solve the problems of difficult span change and loading and unloading of tunnel track laying machines is to provide a tunnel track laying machine and a hydraulic cylinder support arm for the track laying machine, including a hydraulic cylinder support arm for the tunnel track laying machine and an auxiliary track laying machine, the tunnel track laying machine includes a lower end beam arranged at a horizontal interval, and the bottom ends of the two ends of the lower end beam are respectively provided with a walking mechanism, the walking mechanism includes a walking wheel bracket, the walking wheel bracket is provided with a bearing, and the walking wheel bracket is rotatably connected to a transmission shaft through the bearing, and the transmission shaft is rotatable relative to the walking wheel bracket. Walking wheel brackets are extended from both ends of the transmission shaft, and walking wheels are fixed at both ends of the transmission shaft. A variable frequency motor is fixed on the outer side of the walking wheel bracket, and the transmission output shaft of the variable frequency motor is connected to the walking wheel for transmission, and the variable frequency motor provides power for the walking wheel. A pressure sensor is provided between the walking wheel and the transmission shaft, and the pressure sensor can sense the size of the supporting force on the walking wheel. An articulated seat is fixed to the upper end of the traveling wheel bracket, and the traveling wheel bracket is hinged to the bottom end of the lower end beam through the articulated seat; a first electric cylinder is provided between the traveling wheel bracket and the lower end beam, a fixed end of the first electric cylinder is hinged to the lower end beam, and a free end of the first electric cylinder is hinged to the traveling wheel bracket, and the first electric cylinder can adjust the angle of the traveling wheel bracket, thereby changing the fulcrum of the traveling wheel to adapt to the arc angle of the inner wall of the tunnel.

[0005] A vertically arranged support leg is fixed to the top of the end of the lower end beam, and an upper end beam parallel to the lower end beam is fixed to the top of the support leg. The support leg includes a column vertically fixed to the lower end beam, and a sleeve is sleeved on the upper end of the column. The top of the sleeve is fixed to the upper end beam. The column and the sleeve are respectively provided with through holes evenly spaced, and a detachable pin is inserted into the through hole. The column and the sleeve are detachably and fixedly connected through the pin. A main beam of the track laying machine is arranged between the two upper end beams, and the two ends of the main beam are respectively fixed to the upper ends of the upper end beams. The main beam includes a box beam arranged between the two upper end beams, and telescopic beams are respectively sleeved on the two ends of the box beam. Telescopic beam flanges are respectively provided at the outer ends of the telescopic beams, and the telescopic beam is fixedly connected to the upper end beam through the telescopic beam flanges. Second electric cylinders are respectively arranged below the two ends of the main beam, and the fixed end of the second electric cylinder is hinged to the side wall of the upper end beam, and the free end of the second electric cylinder is hinged to the lower end of the box beam. The telescopic beam and the box beam are both provided with assembly holes, and pins are also inserted in the assembly holes. The telescopic beam and the box beam are detachably fixedly connected by the pins. A support beam arranged in parallel and at intervals is fixed at the bottom end of the main beam. The main beam is provided with a lifting mechanism, which includes a lifting motor symmetrically fixed on the box beam, and the end of the transmission output shaft of the lifting motor is connected to a drum in a transmission manner, and a steel wire rope is arranged on the drum. A sling is provided below the box beam, and a group of pulley blocks are respectively fixed at both ends of the sling, and the pulley blocks are connected to the drum in a transmission manner through a steel wire rope.

[0006] The hydraulic cylinder support arm includes a chassis, and a vertically arranged lower support arm with a hollow interior is provided at the top of the chassis. The lower support arm includes a first lower support arm, a second lower support arm, a third lower support arm and a fourth lower support arm, and the first lower support arm, the second lower support arm, the third lower support arm and the fourth lower support arm form a rectangular cube. The bottom ends of the first lower support arm, the second lower support arm, the third lower support arm and the fourth lower support arm are respectively hinged to the chassis through a hinge seat. The upper ends of the first lower support arm, the second lower support arm, the third lower support arm and the fourth lower support arm are all sleeved with an upper support arm, and the top ends of the upper support arms are respectively detachably fixed with a U-shaped support frame, and the support frame is clamped and matched with the support beam. The upper support arm is respectively sleeved inside the first lower support arm, the second lower support arm, the third lower support arm and the fourth lower support arm. A vertically arranged height adjustment hydraulic cylinder is provided in each of the first lower arm, the second lower arm, the third lower arm and the fourth lower arm, and the fixed ends of the height adjustment hydraulic cylinder are respectively hinged to the inner bottom ends of the first lower arm, the second lower arm, the third lower arm and the fourth lower arm, and the free ends of the height adjustment hydraulic cylinder are respectively hinged to the bottom ends of the upper arms. An angle adjustment hydraulic cylinder is provided between the first lower arm and the second lower arm, and the fixed end of the angle adjustment hydraulic cylinder is hinged to the bottom end of the second lower arm, and the free end of the angle adjustment hydraulic cylinder is hinged to the upper end of the first lower arm. An angle adjustment hydraulic cylinder is also provided between the third lower arm and the fourth lower arm, and the fixed end of the angle adjustment hydraulic cylinder is hinged to the lower end of the third lower arm, and the free end of the angle adjustment hydraulic cylinder is hinged to the upper end of the fourth lower arm.

[0007] A horizontally arranged articulated beam is provided between the first lower arm and the second lower arm, one end of the articulated beam is articulated to the upper end of the first lower arm through an articulated seat, the other end of the articulated beam is connected to the upper end of the second lower arm through an articulated seat, and the articulated beam is located above the angle adjustment hydraulic cylinder. A horizontally arranged articulated beam is also provided between the third lower arm and the fourth lower arm, one end of the articulated beam is articulated to the upper end of the third lower arm through an articulated seat, the other end of the articulated beam is connected to the upper end of the fourth lower arm through an articulated seat, and the articulated beam is located above the angle adjustment hydraulic cylinder.

[0008] A vertically arranged fixing plate is provided between the first lower arm and the fourth lower arm, and the two corners of the lower end of the fixing plate are respectively hinged to the lower ends of the first lower arm and the fourth lower arm, and the two corners of the upper end of the fixing plate are respectively hinged to the upper ends of the first lower arm and the fourth lower arm. A vertically arranged fixing plate is also provided between the second lower arm and the third lower arm, and the two corners of the lower end of the fixing plate are respectively hinged to the lower ends of the second lower arm and the third lower arm, and the two corners of the upper end of the fixing plate are respectively hinged to the upper ends of the second lower arm and the third lower arm.

[0009] Preferably, when the track laying machine changes its span, the top end of the upper arm of the hydraulic cylinder arm is engaged with the support beam on the track laying machine.

[0010] Preferably, the tunnel track laying machine and the hydraulic cylinder support arm for the track laying machine also include a control system, and the height adjustment hydraulic cylinder, angle adjustment hydraulic cylinder, frequency conversion motor, lifting motor, pressure sensor, first electric cylinder and second electric cylinder are connected to the control system via wires.

[0011] By adopting the above technical solution, the present invention has the following advantages:

[0012] The pressure sensor installed in the walking mechanism can transmit the pressure signal borne by the walking wheel to the controller, and then the controller controls the first electric cylinder to adjust the angle of the walking wheel bracket to adapt to the arc angle of the inner wall of the tunnel; the main beam of the track laying machine includes a box beam and a telescopic beam, and the telescopic beam and the box beam are detachably fixedly connected to change the span of the track laying machine; the setting of the second electric cylinder can automatically assist in adjusting the main beam to change the span; the angle adjustment hydraulic cylinder articulated between the first lower arm and the second lower arm is used to adjust the inclination of the first lower arm and the second lower arm; the angle adjustment hydraulic cylinder articulated between the third lower arm and the fourth lower arm is used to adjust the inclination of the third lower arm and the fourth lower arm; the setting of the articulated beam not only plays a connecting and fixing role, but also plays a traction role during adjustment; the height adjustment hydraulic cylinder arranged in the lower arm has a lifting effect on the upper arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 It is a structural schematic diagram of the track laying machine of the present invention;

[0015] Figure 3 This is a front view of the hydraulic cylinder support arm of the present invention;

[0016] Figure 4 It is a right side view of the hydraulic cylinder support arm of the present invention;

[0017] Figure 5 A top view of the hydraulic cylinder support arm of the present invention;

[0018] Figure 6 for Figure 1 Enlarged view of part A.

[0019] Figure numerals: 1, tunnel track laying machine; 2, hydraulic cylinder arm; 3, walking mechanism; 4, supporting leg; 5, lifting mechanism; 6, lower arm; 7, upper arm; 8, operating platform; 9, control system; 11, lower end beam; 12, upper end beam; 13, main beam; 131, box beam; 132, telescopic beam; 133, telescopic beam flange; 14, second electric cylinder; 15, supporting beam; 21, chassis; 22, height adjustment hydraulic cylinder; 23 , angle adjustment hydraulic cylinder; 24, hinged beam; 25, fixed plate; 31, travel wheel bracket; 32, transmission shaft; 33, travel wheel; 34, frequency conversion motor; 35, pressure sensor; 36, first electric cylinder; 41, column; 42, casing; 51, lifting motor; 52, pulley block; 53, hoisting device; 61, first lower arm; 62, second lower arm; 63, third lower arm; 64, fourth lower arm; 71, support frame. DETAILED DESCRIPTION

[0020] like Figure 1-6 As shown, a tunnel track paving machine and a hydraulic cylinder support arm for the track paving machine include a tunnel track paving machine 1 and a hydraulic cylinder support arm 2 for an auxiliary track paving machine, wherein the tunnel track paving machine 1 includes a lower end beam 11 arranged at intervals horizontally, and a traveling mechanism 3 is respectively arranged at the bottom of both ends of the lower end beam 11, and the traveling mechanism 3 includes a traveling wheel bracket 31, and the traveling wheel bracket 31 is provided with a bearing, and the traveling wheel bracket 31 is rotatably connected to a transmission shaft 32 through the bearing, and the transmission shaft 32 is rotatable relative to the traveling wheel bracket 31. The two ends of the transmission shaft 32 extend out of the traveling wheel bracket 31, and the two ends of the transmission shaft 32 are respectively fixed with traveling wheels 33, and a variable frequency motor 34 is fixed on the outer side of the traveling wheel bracket 31, and the transmission output shaft of the variable frequency motor 34 is transmission-connected with the traveling wheel 33, and the variable frequency motor 34 provides power for the traveling wheel 33. A pressure sensor 35 is arranged between the traveling wheel 33 and the transmission shaft 32, and the pressure sensor 35 can sense the size of the supporting force exerted on the traveling wheel 33. An articulated seat is fixed to the upper end of the travel wheel bracket 31, and the travel wheel bracket 31 is hinged to the bottom end of the lower end beam 11 through the articulated seat. A first electric cylinder 36 is provided between the travel wheel bracket 31 and the lower end beam 11, and a fixed end of the first electric cylinder 36 is hinged to the lower end beam 11, and a free end of the first electric cylinder 36 is hinged to the travel wheel bracket 31. The first electric cylinder 36 can adjust the angle of the travel wheel bracket 31, thereby changing the force point of the travel wheel 33 to adapt to the arc angle of the inner wall of the tunnel.

[0021] A vertically arranged support leg 4 is fixed to the top end of the lower end beam 11, and an upper end beam 12 parallel to the lower end beam 11 is fixed to the top end of the support leg 4. The support leg 4 includes a column 41 vertically fixed on the lower end beam 11, and a sleeve 42 is sleeved on the upper end of the column 41. The top end of the sleeve 42 is fixed to the upper end beam 12. The column 41 and the sleeve 42 are respectively provided with through holes evenly spaced, and detachable pins are inserted in the through holes. The column 41 and the sleeve 42 are detachably fixedly connected by the pins, and there are at least two groups of through holes with pins inserted in them. A main beam 13 of the track laying machine is provided between the two upper end beams 12, and the two ends of the main beam 13 are respectively fixed to the upper ends of the upper end beams 12. The main beam 13 includes a box beam 131 provided between the two upper end beams 12, and the two ends of the box beam 131 are respectively sleeved with telescopic beams 132, and the outer ends of the telescopic beams 132 are respectively provided with telescopic beam flanges 133, and the telescopic beam 132 is fixedly connected to the upper end beams 12 through the telescopic beam flanges 133. A second electric cylinder 14 is respectively provided below the two ends of the main beam 13, and the fixed end of the second electric cylinder 14 is hinged to the side wall of the upper end beam 12, and the free end of the second electric cylinder 14 is hinged to the lower end of the box beam 131. Assembly holes are provided on the telescopic beam 132 and the box beam 131, and pins are also inserted in the assembly holes. The telescopic beam 132 and the box beam 131 are detachably fixedly connected through the pins, and at least two groups of assembly holes are inserted with pins. A support beam 15 arranged in parallel and spaced apart is fixed at the bottom end of the main beam 13, and the support beam 15 plays the role of fixed support for the tunnel track laying machine 1. A lifting mechanism 5 is provided on the main beam 13, and the lifting mechanism 5 includes a lifting motor 51 symmetrically fixed on the box beam 131, and a drum is drivingly connected to the end of the transmission output shaft of the lifting motor 51, and a steel wire rope is arranged on the drum, and a sling 53 is provided below the box beam 131, and pulley blocks 52 are respectively fixed at both ends of the sling 53, and the pulley blocks 52 are drivingly connected to the drum through steel wire ropes.

[0022] The hydraulic cylinder arm includes a chassis 21, and a vertically arranged lower arm 6 with a hollow interior is provided at the top of the chassis 21. The lower arm 6 includes a first lower arm 61, a second lower arm 62, a third lower arm 63 and a fourth lower arm 64, and the first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64 form a rectangular cube. The bottom ends of the first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64 are respectively hinged to the chassis 21 through a hinge seat. The upper ends of the first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64 are all sleeved with an upper arm 7, and the top ends of the upper arms 7 are respectively detachably fixed with a U-shaped support frame 71, and the support frame 71 is clamped and matched with the support beam 15. The upper arm 7 is respectively sleeved inside the first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64. The first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64 are each provided with a vertically arranged height adjustment hydraulic cylinder 22, the fixed ends of the height adjustment hydraulic cylinder 22 are respectively hinged to the inner bottom ends of the first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64, and the free ends of the height adjustment hydraulic cylinder 22 are respectively hinged to the bottom ends of the upper arm 7. An angle-adjusting hydraulic cylinder 23 is provided between the first lower arm 61 and the second lower arm 62, the fixed end of the angle-adjusting hydraulic cylinder 23 is hinged to the bottom end of the second lower arm 61, and the free end of the angle-adjusting hydraulic cylinder 23 is hinged to the upper end of the first lower arm 61. An angle-adjusting hydraulic cylinder 23 is also provided between the third lower arm 63 and the fourth lower arm 64, the fixed end of the angle-adjusting hydraulic cylinder 23 is hinged to the lower end of the third lower arm 63, and the free end of the angle-adjusting hydraulic cylinder 23 is hinged to the upper end of the fourth lower arm 64.

[0023] A horizontally arranged articulated beam 24 is provided between the first lower arm 61 and the second lower arm 62, one end of the articulated beam 24 is articulated to the upper end of the first lower arm 61 through an articulated seat, the other end of the articulated beam 24 is connected to the upper end of the second lower arm 62 through an articulated seat, and the articulated beam is located above the angle adjustment hydraulic cylinder 23. A horizontally arranged articulated beam 24 is also provided between the third lower arm 63 and the fourth lower arm 64, one end of the articulated beam 24 is articulated to the upper end of the third lower arm 63 through an articulated seat, the other end of the articulated beam 24 is connected to the upper end of the fourth lower arm 64 through an articulated seat, and the articulated beam 24 is located above the angle adjustment hydraulic cylinder 23.

[0024] A vertically arranged fixing plate 25 for fixing is provided between the first lower arm 61 and the fourth lower arm 64. The two corners of the lower end of the fixing plate 25 are respectively hinged to the lower ends of the first lower arm 61 and the fourth lower arm 64, and the two corners of the upper end of the fixing plate 25 are respectively hinged to the upper ends of the first lower arm 61 and the fourth lower arm 64. A vertically arranged fixing plate 25 for fixing is also provided between the second lower arm 62 and the third lower arm 63. The two corners of the lower end of the fixing plate 25 are respectively hinged to the lower ends of the second lower arm 62 and the third lower arm 63, and the two corners of the upper end of the fixing plate 25 are respectively hinged to the upper ends of the second lower arm 62 and the third lower arm 63.

[0025] When the track laying machine changes span, the top end of the upper arm 7 of the hydraulic cylinder arm 2 is engaged with the support beam 15 on the tunnel track laying machine 1 .

[0026] The tunnel track laying machine and the hydraulic cylinder support arm for the track laying machine also include a control system 9, which includes a controller and a power distribution cabinet. The height adjustment hydraulic cylinder 22, the angle adjustment hydraulic cylinder 23, the variable frequency motor 34, the lifting motor 51, the pressure sensor 35, the first electric cylinder 36 and the second electric cylinder 14 are connected to the control system 9 through wires, and the control system 9 is connected to the operating platform 8 through wires.

[0027] Usage process:

[0028] When in use, the hydraulic cylinder arm 2 is transported to the bottom of the tunnel track paving machine 1, and the height adjustment hydraulic cylinder 22 in the first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64 are started at the same time. The free end of the height adjustment hydraulic cylinder 22 moves upward slowly and uniformly, and the upper arm 7 moves upward at a uniform speed under the support of the free end of the height adjustment hydraulic cylinder 22. The support frame 71 at the top of the upper arm 7 moves to the bottom of the support beam 15 on the tunnel track paving machine 1. Then, the angle adjustment hydraulic cylinder 23 between the first lower arm 61 and the second lower arm 62 is started through the operating platform 8, and the angle adjustment hydraulic cylinder 23 between the third lower arm 63 and the fourth lower arm 64 is started at the same time. The first lower arm 61 and the fourth lower arm 64 are pushed to the left by the free end of the angle adjustment hydraulic cylinder 23, and the second lower arm 62 and the third lower arm 63 are also pulled to the left by the articulated beam 24. After the position is adjusted, the height adjustment hydraulic cylinder 22 in the first lower arm 61, the second lower arm 62, the third lower arm 63 and the fourth lower arm 64 is started at the same time through the operating platform 8, so that the support frame 71 is engaged with the support beam 15. The height adjustment hydraulic cylinder 22 continues to work, and then the tunnel track laying machine 1 is lifted up. After the tunnel track laying machine 1 is lifted up, the span changing operation can be performed on the tunnel track laying machine 1. First, the pin shaft between the box beam 131 and the telescopic beam 132 is pulled out so that the telescopic beam 132 and the box beam 131 can slide relative to each other. Then, the second electric cylinder 14 is controlled through the operating platform 8. The second electric cylinder 14 drives the telescopic beam 132 to move in the box beam 131. After moving to a suitable position, the telescopic beam 131 and the box beam 132 are detachably fixedly connected with the pin shaft.

[0029] When the height of the tunnel track paving machine 1 needs to be adjusted, first pull out the pin between the column 41 and the sleeve 42, so that the column 41 can move freely in the sleeve 42. When the hydraulic cylinder support arm 2 lifts the tunnel track paving machine 1 to a suitable position, the pin is used to detachably and fixedly connect the column 41 and the sleeve 42, thereby realizing the height adjustment of the tunnel track paving machine 1.

[0030] During the construction of the tunnel, there is an arc angle on the inner wall of the tunnel. Therefore, when the running wheel 33 is subjected to uneven force, the running wheel 33 transmits the pressure to the pressure sensor 35. The pressure sensor 35 transmits the pressure signal to the control system 9. The control system 9 starts the first electric cylinder 36. The first electric cylinder 36 adjusts the angle of the running wheel bracket 31, thereby adjusting the running wheel 33 to an arc angle suitable for the inner wall of the tunnel.

[0031] When the tunnel track laying machine 1 needs to be transported, the transport trolley is moved to the bottom of the raised tunnel track laying machine 1, and the hydraulic cylinders in the first lower support arm 61, the second lower support arm 62, the third lower support arm 63 and the fourth lower support arm 64 are started at the same time, so that the free end of the height adjustment hydraulic cylinder 22 slowly and evenly falls until the tunnel track laying machine 1 falls onto the uniform speed trolley.

[0032] In the description of the present invention, it is necessary to understand that the terms "up", "down", "left", "right", "top", "bottom", "horizontal", "vertical", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A tunnel track laying machine, comprising a hydraulic cylinder support arm for assisting the track laying machine, characterized in that: It also includes a lower end beam arranged at intervals horizontally, the bottom ends of the two ends of the lower end beam are respectively provided with a walking mechanism, the top end of the lower end beam is fixed with a vertically arranged support leg, the top end of the support leg is fixed with an upper end beam parallel to the lower end beam, a main beam of the track laying machine is arranged between the two upper end beams, the two ends of the main beam are respectively fixed to the upper end of the upper end beam, the bottom end of the main beam is fixed with a support beam arranged in parallel and at intervals, and a lifting mechanism is arranged on the main beam; The hydraulic cylinder support arm includes a chassis, and the chassis is respectively provided with a vertically arranged internal hollow lower support arm, and the lower support arm includes a first lower support arm, a second lower support arm, a third lower support arm and a fourth lower support arm, and the bottom ends of the first lower support arm, the second lower support arm, the third lower support arm and the fourth lower support arm are respectively hinged to the chassis through a hinge seat, and the upper ends of the first lower support arm, the second lower support arm, the third lower support arm and the fourth lower support arm are all sleeved with an upper support arm, and the first lower support arm, the second lower support arm, the third lower arm and the fourth lower arm are all provided with a vertically arranged height adjustment hydraulic cylinder, and the height adjustment hydraulic The fixed end of the cylinder is hinged to the bottom end of the corresponding lower support arm, and the free end of the height adjustment hydraulic cylinder is hinged to the bottom end of the corresponding upper support arm; an angle adjustment hydraulic cylinder is provided between the first lower support arm and the second lower support arm, the fixed end of the angle adjustment hydraulic cylinder is hinged to the bottom end of the second lower support arm, and the free end of the angle adjustment hydraulic cylinder is hinged to the upper end of the first lower support arm; an angle adjustment hydraulic cylinder is also provided between the third lower support arm and the fourth lower support arm, the fixed end of the angle adjustment hydraulic cylinder is hinged to the lower end of the third lower support arm, and the free end of the angle adjustment hydraulic cylinder is hinged to the upper end of the fourth lower support arm; When the track laying machine changes span, the top end of the upper arm of the hydraulic cylinder arm is engaged with the support beam on the track laying machine; The walking mechanism includes a walking wheel bracket, a transmission shaft is rotatably connected to the walking wheel bracket through a bearing, walking wheel brackets are extended from both ends of the transmission shaft, walking wheels are fixed to both ends of the transmission shaft, a frequency conversion motor is fixed to the outside of the walking wheel bracket, and the transmission output shaft of the frequency conversion motor is connected to the walking wheel; a pressure sensor is provided between the walking wheel and the transmission shaft, an articulated seat is fixed to the upper end of the walking wheel bracket, and the walking wheel bracket is hinged to the bottom end of the lower end beam through the articulated seat; a first electric cylinder is provided between the walking wheel bracket and the lower end beam, the fixed end of the first electric cylinder is hinged to the lower end beam, and the free end of the first electric cylinder is hinged to the walking wheel bracket; The support leg comprises a column vertically fixed on the lower end beam, a sleeve is sleeved on the upper end of the column, the top end of the sleeve is fixed to the upper end beam, the column and the sleeve are respectively provided with through holes arranged at even intervals, a detachable pin is inserted into the through hole, and the column and the sleeve are detachably fixedly connected via the pin; A horizontally arranged articulated beam is provided between the first lower arm and the second lower arm, one end of the articulated beam is articulated to the upper end of the first lower arm through an articulated seat, the other end of the articulated beam is connected to the upper end of the second lower arm through an articulated seat, and the articulated beam is located above the hydraulic cylinder; a horizontally arranged articulated beam is also provided between the third lower arm and the fourth lower arm, one end of the articulated beam is articulated to the upper end of the third lower arm through an articulated seat, the other end of the articulated beam is connected to the upper end of the fourth lower arm through an articulated seat, and the articulated beam is located above the hydraulic cylinder; It also includes a control system, which is connected to the operating platform through wires, and the hydraulic cylinder, the variable frequency motor, and the first electric cylinder are connected to the control system through wires.

2. The tunnel track laying machine according to claim 1, characterized in that :The main beam includes a box beam arranged between two upper end beams, and telescopic beams are respectively sleeved on both ends of the box beam. Telescopic beam flanges are respectively provided on the outer ends of the telescopic beams, and the telescopic beams are fixedly connected to the upper end beams through the telescopic beam flanges; assembly holes are opened on the telescopic beam and the box beam, and pins are inserted in the assembly holes. The telescopic beam and the box beam are detachably fixedly connected through the pins.

3. The tunnel track laying machine according to claim 2, characterized in that The lifting mechanism includes a lifting motor symmetrically fixed on the box beam, the power output end of the lifting motor is connected to the drum through transmission, a sling is provided under the box beam, and a group of pulley blocks are fixed at both ends of the sling, and the pulley blocks are connected to the drum through transmission by a steel wire rope.

4. The tunnel track laying machine according to claim 3, characterized in that : A second electric cylinder is respectively provided below the two ends of the main beam, the fixed end of the second electric cylinder is hinged to the side wall of the upper end beam, and the free end of the second electric cylinder is hinged to the lower end of the box beam.

5. The tunnel track laying machine according to claim 1, characterized in that : A vertically arranged fixing plate is provided between the first lower arm and the fourth lower arm, and the two corners of the lower end of the fixing plate are hinged to the lower ends of the first lower arm and the fourth lower arm respectively, and the two corners of the upper end of the fixing plate are hinged to the upper ends of the first lower arm and the fourth lower arm respectively; a vertically arranged fixing plate is also provided between the second lower arm and the third lower arm, and the two corners of the lower end of the fixing plate are hinged to the lower ends of the second lower arm and the third lower arm respectively, and the two corners of the upper end of the fixing plate are hinged to the upper ends of the second lower arm and the third lower arm respectively.

6. The tunnel track laying machine according to claim 5, characterized in that The top ends of the upper supporting arms are respectively detachably fixed with U-shaped supporting frames.

7. The tunnel track laying machine according to claim 4, characterized in that: The lifting motor and the second electric cylinder are connected to the control system via wires.

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