Tunnel secondary lining modular dismantling equipment

Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to tunnel secondary lining modular dismantling equipment which comprises a trolley body, an annular cutting mechanism, an inner cutting dismantling mechanism and an arched protective window system, and the inner cutting dismantling mechanism comprises a longitudinal cutting mechanism and a material taking mechanism. The device is reasonable in structural design, the material taking mechanism is arranged on one side of the longitudinal cutting mechanism to serve as an inner cutting and disassembling mechanism, the arched protection window system is arranged at the top of the trolley body, it can be guaranteed that only a cutting window is opened during longitudinal cutting when a secondary lining is cut and disassembled on a dangerous section, and the other arched protection window systems play a role in supporting a cut block, so that the cut block is prevented from being damaged during cutting. Meanwhile, the situation that a cutting block is unstable in stress during cutting can be effectively avoided, after longitudinal cutting is completed, the cutting block can be directly taken down through a material taking mechanism in the inner cutting and disassembling mechanism, the danger caused by traditional blasting demolition or chiseling is avoided, the construction efficiency can be effectively improved, dust caused during tunnel secondary lining dismantling can be effectively reduced, and the service life of the tunnel secondary lining is prolonged. And the safety of operators is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a modular removal device for a tunnel secondary lining. Background Art

[0002] In the development process of the transportation industry, there is a large gap between the highway operation capacity in some areas and the current actual development status, which cannot meet the needs of society. In order to solve this problem, the reconstruction and expansion of the original road has become an important project. However, the tunnel expansion in the reconstruction and expansion project has become a key and difficult project. The most prominent problem in the tunnel expansion is the removal of the lining concrete. The removal of the lining concrete is one of the key links in the tunnel expansion project, and its quality and efficiency directly affect the construction progress and safety performance of the entire tunnel. Nowadays, a circular cutting mechanism and a longitudinal cutting mechanism are generally set on the trolley as a lining cutting trolley to realize the partitioned removal of the lining. For example, a multifunctional cutting trolley is proposed in the patent announcement number CN 218659894U.

[0003] When the existing lining cutting trolley is in use, since the trolley itself does not have any protective components, when the lining is removed in sections or when cutting dangerous sections, the surrounding lining may collapse due to lack of support, causing casualties. In addition, when removing a single lining, it is necessary to manually knock it down with the help of a hammer, which has low construction efficiency and poses safety risks.

[0004] Therefore, it is necessary to propose a safe and efficient tunnel secondary lining fully automatic cutting and disassembly trolley. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a modular removal equipment for the secondary lining of a tunnel in view of the deficiencies in the above-mentioned prior art. The equipment has a reasonable structural design, a material-retrieving mechanism is arranged on one side of the longitudinal cutting mechanism as an internal cutting and removal mechanism, and an arched protective window system is arranged on the top of the trolley body, so as to ensure that when the secondary lining is removed in a dangerous section, only the cutting window is opened during longitudinal cutting, and the remaining arched protective window systems play a role in supporting the cut blocks, so as to avoid the collapse of concrete blocks during cutting, causing casualties, and at the same time effectively avoid the unstable force of the cutting blocks during cutting. After the longitudinal cutting is completed, the cutting blocks can be directly removed by the material-retrieving mechanism in the internal cutting and removal mechanism, so as to avoid the dangers brought by traditional blasting demolition or chiseling, effectively improve the construction efficiency, reduce the dust brought by the removal of the secondary lining of the tunnel, and ensure the safety of the operators.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a modular dismantling device for a tunnel secondary lining, characterized in that it comprises a trolley body, a ring cutting mechanism arranged at the front side of the trolley body and used for ring cutting the tunnel secondary lining, an inner cutting and dismantling mechanism arranged on the trolley body, and an arched protective window system arranged on the top of the trolley body, wherein the inner cutting and dismantling mechanism comprises a longitudinal cutting mechanism for longitudinally cutting the tunnel secondary lining and a material taking mechanism for removing the cut material blocks;

[0007] The trolley body is provided with an arc-shaped slide rail mechanism for slidingly installing the longitudinal cutting mechanism and the material taking mechanism, and the longitudinal cutting mechanism and the material taking mechanism are both slidably installed on the arc-shaped slide rail mechanism;

[0008] The arched protective window system comprises a front arch frame arranged at the top of the front side of the trolley body, a rear arch frame arranged at the top of the rear side of the trolley body, and a protective window assembly installed between the front arch frame and the rear arch frame and capable of being opened and closed, wherein the protective window assembly comprises a plurality of cutting windows evenly arranged along the circumference of the rear arch frame, a material taking window is arranged between two adjacent cutting windows, the cutting window and the material taking window are both slidably installed on the rear arch frame, and the arc-shaped slide rail mechanism is located between the front arch frame and the rear arch frame;

[0009] The material taking mechanism comprises a material taking frame body slidably mounted on an arc-shaped slide rail mechanism and an arc-shaped material receiving plate arranged on the material taking frame body and capable of being lifted and lowered, wherein the arc-shaped material receiving plate is provided with an electromagnet.

[0010] The above-mentioned modular removal equipment for the secondary lining of a tunnel is characterized in that: an arc-shaped circular cutting slide rail for sliding installation of a circular cutting mechanism is arranged on the front side of the trolley body, the arc-shaped circular cutting slide rail is located on the front side of the front arch frame, and the arc center line of the arc-shaped circular cutting slide rail is parallel to the front and rear direction of the trolley body. The circular cutting mechanism includes a circular cutting slide seat slidably installed on the arc-shaped circular cutting slide rail and an annular cutting blade rotatably arranged on the circular cutting slide seat, and the annular cutting blade is used to perform circular cutting on the secondary lining of the tunnel during the sliding process of the circular cutting slide seat.

[0011] The above-mentioned tunnel secondary lining modular removal equipment is characterized in that: the arc-shaped slide rail mechanism includes a front slide rail group and a rear slide rail group fixed on the trolley body, and the longitudinal cutting mechanism and the material taking mechanism are both slidably installed between the front slide rail group and the rear slide rail group.

[0012] The above-mentioned modular removal equipment for the secondary lining of a tunnel is characterized in that: the longitudinal cutting mechanism includes a longitudinal cutting frame slidably mounted on a circular arc-shaped slide rail mechanism, the longitudinal cutting frame is provided with a longitudinal guide rail, a longitudinal cutting slide is slidably mounted on the longitudinal guide rail, a longitudinal cutting blade is rotatably mounted on the longitudinal cutting slide, and the longitudinal cutting blade is used to longitudinally cut the secondary lining of the tunnel during the sliding process of the longitudinal cutting slide.

[0013] The above-mentioned modular removal equipment for the secondary lining of a tunnel is characterized in that: a swingable guide frame is hingedly installed on both sides of the material-removing frame, the middle part of the guide frame is hinged to one side of the material-removing frame, a side support plate is slidably installed in the guide frame, and a clamping plate is hinged on the top of the side support plate.

[0014] The above-mentioned modular removal equipment for the secondary lining of a tunnel is characterized in that: a C-shaped bracket is respectively arranged at the bottom of both sides of the material taking frame, and the bottoms of the two guide frames are respectively extended into the two C-shaped brackets, and the C-shaped bracket is provided with a swinging cylinder for driving the guide frame to swing and an extension cylinder for driving the side support plate to slide along the guide frame, and the side support plate is provided with a folding cylinder for folding the splint.

[0015] The above-mentioned modular removal equipment for the secondary lining of a tunnel is characterized in that: the material receiving frame is provided with a plurality of lifting cylinders for driving the arc-shaped material receiving plate to rise and fall, and the electromagnet is arranged on the lower surface of the arc-shaped material receiving plate.

[0016] The above-mentioned modular removal equipment for the secondary lining of a tunnel is characterized in that: a plurality of cutting window slide rails for slidingly installing the cutting window are evenly arranged on the rear arch frame along its circumference, a material taking window slide rail for slidingly installing the material taking window is arranged between two adjacent cutting window slide rails, a dovetail slide groove matching the cutting window slide rail is arranged on the cutting window, a dovetail slide groove matching the material taking window slide rail is arranged on the material taking window, and the cutting window slide rail is parallel to the material taking window slide rail;

[0017] A push-pull oil cylinder for driving the cutting window to slide along the cutting window slide rail is arranged on one side of the cutting window slide rail, and a push-pull oil cylinder for driving the cutting window to slide along the feeding window slide rail is arranged on one side of the feeding window slide rail.

[0018] The above-mentioned modular removal equipment for the secondary lining of a tunnel is characterized in that: the width of the material taking window is greater than the width of the cutting window, a conical head is provided on the end of the cutting window close to the front arch frame, two conical heads are provided on the end of the material taking window close to the front arch frame, and connecting holes for inserting the conical heads are provided on one side of the front arch frame close to the rear arch frame.

[0019] The above-mentioned modular dismantling equipment for the secondary lining of a tunnel is characterized in that: the front arch frame includes a left front arch frame, a top front arch frame and a right front arch frame which are hinged in sequence, and the rear arch frame includes a left rear arch frame, a top rear arch frame and a right rear arch frame which are hinged in sequence, and the left front part, left rear part, right front part and right rear part of the trolley body are respectively provided with a plurality of supporting cylinders for supporting the left front arch frame, the left rear arch frame, the right front arch frame and the right rear arch frame.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The present invention arranges a material taking mechanism as an internal cutting and dismantling mechanism on one side of the longitudinal cutting mechanism. When the longitudinal cutting mechanism cuts the tunnel secondary lining into blocks, since the cut blocks contain steel bars, the arc-shaped material receiving plates and electromagnets in the material taking mechanism can be used to absorb and dismantle the cut blocks, which can effectively solve the dangers caused by blasting, knocking and dismantling or chiseling after the traditional ring cutting is completed, effectively improve the construction efficiency, reduce the dust caused by the dismantling of the tunnel secondary lining, and ensure the safety of the operators.

[0022] 2. The present invention arranges an arched protective window system on the top of the trolley body. When the secondary lining of the tunnel is removed, the tunnel can be temporarily supported by the arched protective window system to avoid the collapse of concrete blocks in the dangerous section and cause damage to the operators or equipment, which can effectively improve the safety of the operation.

[0023] 3. The present invention forms an arched protective window system by installing a protective window assembly that can be opened and closed between the rear arch frame and the front arch frame, and the protective window assembly includes multiple cutting windows and material taking windows that are slidably installed on the rear arch frame. When performing longitudinal cutting or material taking, only a single cutting window or material taking window is opened to avoid collapse of concrete blocks during cutting or material taking, causing casualties. During cutting, other protective window assemblies also play a role in supporting the cut blocks to avoid unstable force on the cutting blocks during cutting.

[0024] In summary, the present invention has a reasonable structural design. A material-retrieving mechanism is arranged on one side of the longitudinal cutting mechanism as an internal cutting and dismantling mechanism, and an arched protective window system is arranged on the top of the trolley body. This can ensure that when the second lining is cut and dismantled at a dangerous section, only the cutting window is opened during longitudinal cutting, and the remaining arched protective window systems play a role in supporting the cut blocks, thereby avoiding the collapse of concrete blocks during cutting, causing casualties, and effectively avoiding unstable force on the cutting blocks during cutting. After the longitudinal cutting is completed, the material-retrieving mechanism in the internal cutting and dismantling mechanism can be used to directly remove the cutting blocks, thereby avoiding the dangers brought about by traditional blasting demolition or chiseling, effectively improving the construction efficiency, reducing the dust brought about by the dismantling of the second lining of the tunnel, and ensuring the safety of the operators.

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention.

[0027] Figure 2 for Figure 1 A magnified view of the structure at A.

[0028] Figure 3It is a schematic diagram of the installation structure of the circular cutting mechanism and the trolley body of the present invention.

[0029] Figure 4 It is a schematic diagram of the installation structure of the internal cutting and disassembling mechanism and the arc-shaped slide rail mechanism of the present invention.

[0030] Figure 5 It is a schematic diagram of the positional relationship between the trolley body and the front arch frame of the present invention.

[0031] Figure 6 It is a schematic diagram of the installation structure of the cutting window, the material taking window and the rear arch frame of the present invention.

[0032] Figure 7 It is a schematic diagram of the installation structure of the material taking window, the push-pull cylinder and the rear arch frame of the present invention.

[0033] Figure 8 It is a structural schematic diagram of the material taking mechanism of the present invention.

[0034] Fig. 9 It is a schematic diagram of the material taking mechanism of the present invention before taking materials.

[0035] Fig.10 It is a schematic diagram of the material taking mechanism of the present invention when taking materials.

[0036] Fig.11 It is a schematic diagram of the material taking mechanism of the present invention after taking materials.

[0037] Fig.12 It is a schematic diagram of the material taking mechanism of the present invention when unloading.

[0038] Description of reference numerals:

[0039] 1—trolley body; 2—circular cutting mechanism; 201—circular cutting slide;

[0040] 202—circumferential cutting disc; 3—arc-shaped circular cutting slide rail; 4—arc-shaped slide rail mechanism;

[0041] 401—front slide rail assembly; 402—rear slide rail assembly; 5—longitudinal cutting mechanism;

[0042] 501—longitudinal cutting frame; 502—longitudinal guide rail; 503—longitudinal cutting slide;

[0043] 504—longitudinal cutting blade; 6—feeding mechanism; 601—feeding frame;

[0044] 602—arc-shaped receiving plate; 603—electromagnet; 604—guide frame;

[0045] 605—side support plate; 606—clamp plate; 607—C-type bracket;

[0046] 608—swing cylinder; 609—extension cylinder; 610—folding cylinder;

[0047] 611—Lifting cylinder; 7—Front arch frame; 701—Left front arch frame;

[0048] 702—top front arch frame; 703—right front arch frame; 8—rear arch frame;

[0049] 801—left rear arch; 802—top rear arch; 803—right rear arch;

[0050] 9—cutting window; 10—feeding window; 11—cutting window slide rail;

[0051] 12—material taking window slide rail; 13—push-pull cylinder; 14—conical head;

[0052] 15—connection hole; 16—support cylinder; 17—base;

[0053] 18—sliding plate; 19—sliding groove; 20—lifting cylinder;

[0054] 21—Transverse cylinder; 22—Cut material blocks. DETAILED DESCRIPTION

[0055] like Figures 1 to 8 As shown, the present invention comprises a trolley body 1, a ring cutting mechanism 2 arranged at the front side of the trolley body 1 and used for ring cutting the secondary lining of the tunnel, an internal cutting and dismantling mechanism arranged on the trolley body 1, and an arched protective window system arranged on the top of the trolley body 1, wherein the internal cutting and dismantling mechanism comprises a longitudinal cutting mechanism 5 for longitudinally cutting the secondary lining of the tunnel and a material taking mechanism 6 for removing the cut material blocks 22;

[0056] The trolley body 1 is provided with an arc-shaped slide rail mechanism 4 for slidingly installing the longitudinal cutting mechanism 5 and the material taking mechanism 6. The longitudinal cutting mechanism 5 and the material taking mechanism 6 are both slidably installed on the arc-shaped slide rail mechanism 4.

[0057] The arched protective window system includes a front arch frame 7 arranged at the top of the front side of the trolley body 1, a rear arch frame 8 arranged at the top of the rear side of the trolley body 1, and a protective window assembly installed between the front arch frame 7 and the rear arch frame 8 and capable of being opened and closed. The protective window assembly includes a plurality of cutting windows 9 evenly arranged along the circumference of the rear arch frame 8, and a material taking window 10 is arranged between two adjacent cutting windows 9. The cutting window 9 and the material taking window 10 are both slidably installed on the rear arch frame 8, and the arc-shaped slide rail mechanism 4 is located between the front arch frame 7 and the rear arch frame 8;

[0058] The material picking mechanism 6 includes a material picking frame 601 slidably mounted on the arc-shaped slide rail mechanism 4 and an arc-shaped material receiving plate 602 disposed on the material picking frame 601 and capable of being lifted and lowered. An electromagnet 603 is disposed on the arc-shaped material receiving plate 602 .

[0059] In specific implementation, a material taking mechanism 6 is set on one side of the longitudinal cutting mechanism 5 as an internal cutting and dismantling mechanism. After the longitudinal cutting mechanism 5 cuts the tunnel secondary lining into blocks, since the cut material blocks 22 contain steel bars, the arc-shaped material receiving plate 602 and the electromagnet 603 in the material taking mechanism 6 can be used to adsorb and dismantle the cut material blocks 22, which can effectively solve the dangers caused by blasting, knocking and dismantling or chiseling after the traditional ring cutting is completed, can effectively improve the construction efficiency, reduce the dust caused by the dismantling of the tunnel secondary lining, and ensure the safety of the operators.

[0060] In specific implementation, by arranging an arched protective window system on the top of the trolley body 1, when the secondary lining of the tunnel is dismantled, the tunnel can be temporarily supported by the arched protective window system to avoid the collapse of concrete blocks in the dangerous section and cause damage to the operators or equipment, which can effectively improve the safety of the operation.

[0061] In specific implementation, an arched protective window system is formed by installing a protective window assembly that can be opened and closed between the rear arch frame 8 and the front arch frame 7, and the protective window assembly includes multiple cutting windows 9 and material taking windows 10 slidably installed on the rear arch frame 8. When performing longitudinal cutting or material taking, only a single cutting window 9 or material taking window 10 is opened to avoid concrete blocks collapsing and causing casualties during cutting or material taking. During cutting, other protective window assemblies also play a role of supporting the cut blocks to avoid unstable force on the cutting blocks during cutting.

[0062] During specific implementation, especially in the cutting and dismantling of long and deep tunnels, the fully automatic cutting and dismantling trolley for the tunnel's secondary lining has a high degree of automated flow operation, low pollution, and reduces the impact on the tunnel construction environment, greatly reducing the ventilation pressure of the tunnel. The cutting and dismantling construction does not affect the safety of the tunnel's air ducts, avoiding the possibility of damaging the tunnel's ventilation ducts using traditional methods.

[0063] When implementing it, Figure 2As shown, the bottom end of the trolley body 1 is generally provided with a running wheel or a running track, and is also provided with a lifting and lateral movement system. The running wheel or the running track is used to drive the trolley body 1 to travel, and the lifting and lateral movement system is used to drive the trolley body 1 to lift and move laterally. When it is necessary to perform ring cutting on the tunnel, the lifting cylinder 20 in the lifting and lateral movement system is started and extended, and the lifting cylinder 20 can drive the sliding plate 18 and the base 17 at its bottom to move downward. When the base 17 is supported on the ground, the lifting cylinder 20 is continued to be extended, so that the running wheel or the running track can be separated from the ground, and then the lateral movement cylinder 21 is started. Since the base 17 is supported on the ground, the sliding plate 18 can slide in the sliding groove 19 on the base 17, thereby driving the trolley body 1 to move and adjust in the left and right directions, and the operation is simple and convenient;

[0064] After the trolley body 1 is transversely moved into place, the lifting cylinder 20 retracts, thereby driving the trolley body 1 as a whole. When the walking wheels or walking tracks touch the ground, the lifting cylinder 20 continues to retract to drive the base 17 off the ground, and then the transverse cylinder 21 is used to restore the base to the middle position.

[0065] In this embodiment, a circular arc-shaped circular cutting slide rail 3 for slidingly installing the circular cutting mechanism 2 is provided on the front side of the trolley body 1. The circular arc-shaped circular cutting slide rail 3 is located on the front side of the front arch frame 7. The arc center line of the circular arc-shaped circular cutting slide rail 3 is parallel to the front and rear direction of the trolley body 1. The circular cutting mechanism 2 includes a circular cutting slide 201 slidably installed on the circular arc-shaped circular cutting slide rail 3 and an annular cutting piece 202 rotatably arranged on the circular cutting slide 201. The annular cutting piece 202 is used to perform circular cutting on the secondary lining of the tunnel during the sliding process of the circular cutting slide 201.

[0066] During specific implementation, the arc-shaped circular cutting slide rail 3 is provided with a first rack along the length direction, and a first gear and a first driving motor for driving the first gear to rotate are rotatably installed on the circular cutting slide 201. The first gear engages with the first rack, and the first driving motor is started to control the rotation of the first gear. The first gear can drive the circular cutting slide 201 to slide by cooperating with the first rack. The structure is simple and the operation is convenient.

[0067] During specific implementation, the circular cutting slide 201 can realize automatic depth feeding of the circular cutting blade 202 .

[0068] like Figure 4 As shown, in this embodiment, the arc-shaped slide rail mechanism 4 includes a front slide rail group 401 and a rear slide rail group 402 fixed on the trolley body 1, and the longitudinal cutting mechanism 5 and the material picking mechanism 6 are both slidably installed between the front slide rail group 401 and the rear slide rail group 402.

[0069] In a specific implementation, the front side slide rail group 401 and the rear side slide rail group 402 both include coaxially arranged inner ring slide rails and outer ring slide rails, the tops of the longitudinal cutting mechanism 5 and the material picking mechanism 6 are both slidably installed between the two outer ring slide rails, and the bottoms of the longitudinal cutting mechanism 5 and the material picking mechanism 6 are both slidably installed between the two inner ring slide rails.

[0070] In this embodiment, the longitudinal cutting mechanism 5 includes a longitudinal cutting frame 501 slidably mounted on the arc-shaped slide rail mechanism 4, and a longitudinal cutting frame 501 is provided with a longitudinal guide rail 502, and a longitudinal cutting slide 503 is slidably mounted on the longitudinal guide rail 502, and a longitudinal cutting blade 504 is rotatably mounted on the longitudinal cutting slide 503. The longitudinal cutting blade 504 is used to perform longitudinal cutting on the secondary lining of the tunnel during the sliding process of the longitudinal cutting slide 503.

[0071] During specific implementation, a second rack is provided along the length direction of the outer ring slide rail. A second gear and a second drive motor for driving the second gear to rotate are rotatably installed on the longitudinal cutting frame 501 and the material picking frame 601. The second gear engages with the second rack. By starting the two second drive motors, the two second gears can be controlled to rotate. The two second gears can drive the longitudinal cutting frame 501 and the material picking frame 601 to slide by cooperating with the second rack. The two second drive motors can be controlled separately, with a simple structure and easy operation.

[0072] During specific implementation, the arc center lines of the arc-shaped annular guide rail 3, the inner guide rail and the outer guide rail coincide with each other.

[0073] During specific implementation, the longitudinal cutting slide 503 can realize automatic depth feeding of the longitudinal cutting blade 504 .

[0074] During specific implementation, the specific structure of the circular cutting mechanism 2 and the installation structure of the longitudinal cutting blade 504 in the longitudinal cutting mechanism 5 refer to the contents disclosed in a multifunctional cutting trolley with the authorization announcement number CN 218659894U.

[0075] like Figure 8 As shown, in this embodiment, a swingable guide frame 604 is hingedly installed on both sides of the material picking rack body 601, the middle part of the guide frame 604 is hinged to one side of the material picking rack body 601, a side support plate 605 is slidably installed in the guide frame 604, and a clamping plate 606 is hinged on the top of the side support plate 605.

[0076] In a specific implementation, the guide frame 604 includes two relatively arranged slide grooves and a plurality of connecting rods connected between the two slide grooves, the side support plate 605 is slidably installed between the two slide grooves, and the clamping plate 606 is hinged to the top of the side support plate 605 by a hinge.

[0077] In this embodiment, a C-shaped bracket 607 is respectively provided at the bottom of both sides of the material picking frame 601, and the bottoms of the two guide frames 604 are respectively extended into the two C-shaped brackets 607. The C-shaped bracket 607 is provided with a swing cylinder 608 for driving the guide frame 604 to swing and an extension cylinder 609 for driving the side support plate 605 to slide along the guide frame 604. The side support plate 605 is provided with a folding cylinder 610 for folding the splint 606.

[0078] During specific implementation, the cylinder body end of the swing cylinder 608 is hinged on the side of the C-shaped bracket 607 away from the material picking rack 601, the piston rod end of the swing cylinder 608 is hinged at the bottom of the guide frame 604, the cylinder body end of the extension cylinder 609 is hinged on the side of the C-shaped bracket 607 away from the material picking rack 601, the piston rod end of the extension cylinder 609 is hinged on the hinge seat in the middle of the side support plate 605, the cylinder body end of the folding cylinder 610 is hinged on the hinge seat in the middle of the side support plate 605, the splint 606 is provided with a hinge ear, and the piston rod end of the folding cylinder 610 is hinged on the hinge ear of the splint 606.

[0079] During specific implementation, two C-shaped brackets 607 are respectively arranged on the left and right sides of the material taking frame body 601 , and two inclined rods are connected between the C-shaped bracket 607 and the material taking frame body 601 .

[0080] During specific implementation, a pressure sensor is provided on the pipeline of the extension cylinder 609 so that the extension cylinder 609 is pressure-controlled to prevent the side support plate 605 from crushing the material blocks.

[0081] In this embodiment, the material receiving frame 601 is provided with a plurality of lifting cylinders 611 for driving the arc-shaped material receiving plate 602 to rise and fall, and the electromagnet 603 is provided on the lower surface of the arc-shaped material receiving plate 602 .

[0082] In a specific implementation, there are four lifting cylinders 611 , the cylinder body end of the lifting cylinder 611 is hinged to the bottom of the material taking frame 601 , and the piston rod end of the lifting cylinder 611 is hinged to the lower surface of the arc-shaped material receiving plate 602 .

[0083] In a specific implementation, the electromagnet 603 can generate magnetism after being energized, thereby generating suction force on the steel bars in the cut material block 22, and the arc-shaped material receiving plate 602 is a metal plate.

[0084] During specific implementation, a pressure sensor is provided on the pipeline of the lifting cylinder 611, so that the lifting cylinder 611 is pressure-controlled to prevent the arc-shaped receiving plate 602 from crushing the material blocks.

[0085] In this embodiment, a plurality of cutting window slide rails 11 for slidingly installing the cutting window 9 are evenly arranged on the rear arch frame 8 along its circumference, and a material taking window slide rail 12 for slidingly installing the material taking window 10 is arranged between two adjacent cutting window slide rails 11, and a dovetail slide groove matching the cutting window slide rail 11 is arranged on the cutting window 9, and a dovetail slide groove matching the material taking window slide rail 12 is arranged on the material taking window 10, and the cutting window slide rail 11 is parallel to the material taking window slide rail 12;

[0086] A push-pull cylinder 13 is provided on one side of the cutting window slide rail 11 for driving the cutting window 9 to slide along the cutting window slide rail 11 , and a push-pull cylinder is provided on one side of the material taking window slide rail 12 for driving the material taking window 10 to slide along the material taking window slide rail 12 .

[0087] During specific implementation, both the material taking window slide rail 12 and the cutting window slide rail 11 are dovetail slide rails, and the rear arch frame 8 includes a plurality of arch rings and baffles covering the plurality of arch rings.

[0088] During specific implementation, the cylinder body of the push-pull oil cylinder 13 is hinged on the rear arch frame 8 on one side of the material taking window slide rail 12 , and the piston end of the push-pull oil cylinder 13 is hinged on the material taking window 10 .

[0089] like Figure 6 and Figure 7 As shown, in this embodiment, the width of the material collection window 10 is greater than the width of the cutting window 9, a conical head 14 is provided on the end of the cutting window 9 close to the front arch frame 7, two conical heads 14 are provided on the end of the material collection window 10 close to the front arch frame 7, and a connecting hole 15 for inserting the conical head 14 is provided on one side of the front arch frame 7 close to the rear arch frame 8.

[0090] In specific implementation, when the cutting window 9 is closed, the conical head 14 at one end of the cutting window 9 is inserted into the connecting hole 15 corresponding to the front arch frame 7; when the material collection window 10 is closed, the conical head 14 at one end of the material collection window 10 is inserted into the connecting hole 15 corresponding to the front arch frame 7.

[0091] like Figure 1 and Figure 5 As shown, in this embodiment, the front arch frame 7 includes a left front arch frame 701, a top front arch frame 702 and a right front arch frame 703 which are hinged in sequence, and the rear arch frame 8 includes a left rear arch frame 801, a top rear arch frame 802 and a right rear arch frame 803 which are hinged in sequence. The left front portion of the trolley body 1 is provided with three supporting cylinders 16 for supporting the left front arch frame 701, the left rear portion of the trolley body 1 is provided with three supporting cylinders 16 for supporting the left rear arch frame 801, the right front portion of the trolley body 1 is provided with three supporting cylinders 16 for supporting the right front arch frame 703, and the right rear portion of the trolley body 1 is provided with three supporting cylinders 16 for supporting the right rear arch frame 803.

[0092] During specific implementation, the cylinder body of the supporting cylinder 16 is hinged on the trolley body 1 , and the piston end of the supporting cylinder 16 is hinged on the corresponding left front arch frame 701 , left rear arch frame 801 , right front arch frame 703 or right rear arch frame 803 .

[0093] When the present invention is actually used, the tunnel secondary lining is removed by using a tunnel secondary lining fully automatic cutting and dismantling trolley, and the following steps are included:

[0094] Step 1: Use geological radar to scan the tunnel secondary lining and record the thickness and steel bar distribution data of the tunnel secondary lining section;

[0095] Step 2: Based on the data recorded in step 1 and in combination with the completion drawings of the tunnel construction, draw the position of the annular cutting line on the secondary lining of the tunnel;

[0096] Step 3: The trolley body 1 moves to a proper position along the tunnel axis so that the annular cutting blade 202 of the annular cutting mechanism 2 is aligned with an annular cutting line drawn in step 2, and the lifting and lateral movement system of the trolley body 1 is started so that the arc center line of the arc-shaped annular cutting slide rail 3 coincides with the center of the second lining of the tunnel;

[0097] Step 4: Control the extension of the multiple supporting cylinders 16 so that the outer arch surface of the arched protective window system fits with the tunnel surface of the secondary tunnel lining;

[0098] Step 5: Start the circumferential cutting mechanism 2 to perform circumferential cutting on the secondary lining of the tunnel;

[0099] Step 6: After the circumferential cutting is completed, the multiple supporting cylinders 16 are retracted, so that the arched protective window system is retracted, and the vehicle body 1 is controlled to descend to a specified height;

[0100] Step 7, repeating steps 3 to 6, moving the trolley body 1 forward along the tunnel axis to the next circumferential cutting line position, completing the next circumferential cutting, until all circumferential cutting is completed;

[0101] Step 8, after all the circumferential cutting is completed, the outer arch surface of the arched protection window system is fitted with the tunnel surface of the tunnel secondary lining, and the internal cutting and dismantling mechanism is used to perform longitudinal cutting and removal of the secondary lining ring by ring. When performing longitudinal cutting and removal of the secondary lining, the position of the cutting window 9 is used as a basis, and the material blocks are cut and removed one by one from the arch top of each ring of the secondary lining to both sides until the removal of all rings of the secondary lining is completed;

[0102] When cutting a single material block, the cutting windows 9 on both sides of the material block are opened, and the longitudinal cutting mechanism 5 is moved to longitudinally cut the second lining layer of the ring at the windows of the two cutting windows 9 in sequence, thereby completing the cutting of one material block;

[0103] When removing a single material block, open the material window 10 corresponding to the material block that has completed longitudinal cutting, move the material removal mechanism 6 to the bottom of the cut material block to remove the cut material block 22, and complete the removal of the cut material block 22. When the removal of the cut material block 22 is completed, close the cutting window 9 and the material removal window 10 corresponding to the material block.

[0104] In the specific implementation, in step 2, the spacing between adjacent circumferential cutting lines is controlled to be equal, and each circumferential cutting line should avoid the circumferential reinforcement in the secondary lining of the tunnel;

[0105] During the specific implementation, in step three, when the trolley body 1 moves to the appropriate position along the axial direction of the tunnel, multiple supporting cylinders 16 are in a retracted state, that is, the left front arch frame 701, the left rear arch frame 801, the right front arch frame 703 and the right rear arch frame 803 all retract toward the center of the tunnel.

[0106] In the specific implementation, in step 5, when the second lining of the tunnel is cut circumferentially, according to the fault thickness (thickness at the cutting line) scanned by the geological radar, the circumferential cutting mechanism 2 adjusts the feeding depth of the cut fault accordingly to achieve circumferential cutting of the tunnel fault;

[0107] In specific implementation, when the trolley body 1 moves to the position of the next annular cutting line, the internal cutting mechanism is just located directly below the first ring and second lining surfaces between the previous annular cutting line and the next annular cutting line, and at the same time, the outer arch surface of the arched protective window system contacts the second ring lining surface, playing a role in supporting the second ring lining.

[0108] During specific implementation, in step eight, each material block is located between two adjacent cutting windows 9 .

[0109] In specific implementation, the longitudinal cutting mechanism 5 and the material taking mechanism 6 can work simultaneously. If the material taking mechanism 6 is located on the left side of the longitudinal cutting mechanism 5, when the cut material block is located on the left side of the material block to be cut, the cut material block can be removed synchronously when the longitudinal cutting of the material block to be cut is performed; when the cut material block is located on the right side of the material block to be cut, when the longitudinal cutting of the material block to be cut is performed, the cutting window 9 corresponding to the cut material block is closed, and the material taking mechanism 6 is in a waiting state. When it is necessary to take material, the cutting window 9 and the material taking window 10 corresponding to the material block to be taken are opened;

[0110] When making longitudinal cuts on the second lining, first cut a block of the arch, and then cut crosswise to the left and right.

[0111] In specific implementation, when the material taking mechanism 6 is used to remove a single material block, before opening the material taking window 10, the two swing cylinders 608 are controlled to extend so that the two side support plates 605 are opened to a suitable angle, and then the extension cylinder 609 is controlled to extend so that the upper ends of the clamping plates 606 on the top of the two side support plates 605 are supported on the material block to be removed, such as Fig. 9 As shown; and the two clamps 606 are respectively located on both sides of the material taking window 10, and do not interfere with the material taking window 10. At this time, the clamps 606 are coplanar with the side support plates 605 and are not folded; then the material taking window 10 is opened, the lifting cylinder 611 is controlled to extend and the arc-shaped material receiving plate 602 is pressed upward on the cut material block 22. The material block is a reinforced concrete structure with a built-in steel mesh. The electromagnet 603 at the bottom of the arc-shaped material receiving plate 602 is energized to generate suction to the material block;

[0112] When the block on one side of the cut block 22 has been removed, the two extension cylinders 609 are controlled to retract, thereby separating the two side support plates 605 from the cut block 22, and then the two swing cylinders 608 are controlled to retract, so that the two side support plates 605 are respectively located on both sides of the cut block 22, and then one extension cylinder 609 is controlled to extend, so that the side support plate 605 on the side extends to one side of the cut block 22 and fits with the side of the cut block 22, as shown in FIG. Fig.10 As shown; when the blocks on both sides of the cut block 22 are not removed, the two extension cylinders 609 are controlled to retract, thereby separating the two side support plates 605 from the cut block 22, and then the two swing cylinders 608 are controlled to retract, so that the two side support plates 605 are respectively located on both sides of the cut block 22;

[0113] The lifting cylinder 611 is controlled to retract, so that the cut material block 22 slides down along the two side support plates 605 along with the arc-shaped receiving plate 602 under the suction force of the electromagnet 603 to the U-shaped groove formed by the two side support plates 605 and the arc-shaped receiving plate 602, and the folding cylinder 610 is controlled to extend, so that the two clamping plates 606 are folded and the cut material block 22 is clamped to prevent the cut material block 22 from falling when the material taking mechanism 6 moves. Fig.11 As shown;

[0114] When the cut material block 22 is unloaded, the material taking mechanism 6 moves along the arc-shaped slide rail mechanism 4 to the bottom of the arc-shaped slide rail mechanism 4, the folding cylinder 610 retracts, the clamping plate 606 unfolds, the two swinging cylinders 608 extend, the two side support plates 605 separate from the cut material block 22, the electromagnet 603 is powered off, and the cut material block 22 slides from the arc-shaped receiving plate 602 to the receiving area, as shown in FIG. Fig.12 As shown, in the material receiving area, the construction personnel operate the machine to take away the cut material blocks 22.

[0115] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A modular tunnel secondary lining removal device, characterized in that: The invention comprises a trolley body (1), a circular cutting mechanism (2) arranged at the front side of the trolley body (1) and used for circular cutting of the secondary lining of the tunnel, an internal cutting and dismantling mechanism arranged on the trolley body (1), and an arched protective window system arranged on the top of the trolley body (1), wherein the internal cutting and dismantling mechanism comprises a longitudinal cutting mechanism (5) used for longitudinal cutting of the secondary lining of the tunnel and a material taking mechanism (6) used for removing the cut material blocks (22); The trolley body (1) is provided with an arc-shaped slide rail mechanism (4) for slidingly mounting the longitudinal cutting mechanism (5) and the material taking mechanism (6), and the longitudinal cutting mechanism (5) and the material taking mechanism (6) are both slidably mounted on the arc-shaped slide rail mechanism (4); The arched protective window system comprises a front arch frame (7) arranged at the top of the front side of the trolley body (1), a rear arch frame (8) arranged at the top of the rear side of the trolley body (1), and a protective window assembly installed between the front arch frame (7) and the rear arch frame (8) and capable of being opened and closed, wherein the protective window assembly comprises a plurality of cutting windows (9) uniformly arranged along the circumference of the rear arch frame (8), a material taking window (10) is arranged between two adjacent cutting windows (9), and the cutting window (9) and the material taking window (10) are both slidably installed on the rear arch frame (8), and the arc-shaped slide rail mechanism (4) is located between the front arch frame (7) and the rear arch frame (8); The material taking mechanism (6) comprises a material taking frame (601) slidably mounted on the arc-shaped slide rail mechanism (4) and an arc-shaped material receiving plate (602) disposed on the material taking frame (601) and capable of being raised and lowered, wherein an electromagnet (603) is disposed on the arc-shaped material receiving plate (602).

2. A tunnel secondary lining modular removal device according to claim 1, characterized in that: The front side of the trolley body (1) is provided with an arc-shaped circular cutting slide rail (3) for slidingly mounting the circular cutting mechanism (2); the arc-shaped circular cutting slide rail (3) is located at the front side of the front arch frame (7); the arc center line of the arc-shaped circular cutting slide rail (3) is parallel to the front-rear direction of the trolley body (1); the circular cutting mechanism (2) comprises a circular cutting slide seat (201) slidably mounted on the arc-shaped circular cutting slide rail (3) and an annular cutting blade (202) rotatably mounted on the circular cutting slide seat (201); the annular cutting blade (202) is used to perform circular cutting on the secondary lining of the tunnel during the sliding process of the circular cutting slide seat (201).

3. A tunnel secondary lining modular removal device according to claim 1, characterized in that: The arc-shaped slide rail mechanism (4) comprises a front slide rail group (401) and a rear slide rail group (402) fixed on the trolley body (1), and the longitudinal cutting mechanism (5) and the material taking mechanism (6) are both slidably installed between the front slide rail group (401) and the rear slide rail group (402).

4. A tunnel secondary lining modular removal device according to claim 1, characterized in that: The longitudinal cutting mechanism (5) comprises a longitudinal cutting frame (501) slidably mounted on an arc-shaped slide rail mechanism (4); a longitudinal guide rail (502) is arranged on the longitudinal cutting frame (501); a longitudinal cutting slide (503) is slidably mounted on the longitudinal guide rail (502); a longitudinal cutting blade (504) is rotatably mounted on the longitudinal cutting slide (503); the longitudinal cutting blade (504) is used to longitudinally cut the secondary lining of the tunnel during the sliding process of the longitudinal cutting slide (503).

5. A tunnel secondary lining modular removal device according to claim 1, characterized in that: A swingable guide frame (604) is hingedly installed on both sides of the material taking frame (601), the middle part of the guide frame (604) is hinged to one side of the material taking frame (601), a side support plate (605) is slidably installed in the guide frame (604), and a clamping plate (606) is hinged on the top of the side support plate (605).

6. A tunnel secondary lining modular removal device according to claim 5, characterized in that: A C-shaped bracket (607) is respectively provided at the bottom of both sides of the material taking frame body (601), and the bottoms of the two guide frames (604) are respectively extended into the two C-shaped brackets (607). The C-shaped bracket (607) is provided with a swinging cylinder (608) for driving the guide frame (604) to swing and an extension cylinder (609) for driving the side support plate (605) to slide along the guide frame (604). The side support plate (605) is provided with a folding cylinder (610) for folding the clamping plate (606).

7. A tunnel secondary lining modular removal device according to claim 1, characterized in that: The material receiving frame (601) is provided with a plurality of lifting cylinders (611) for driving the arc-shaped material receiving plate (602) to rise and fall, and the electromagnet (603) is arranged on the lower surface of the arc-shaped material receiving plate (602).

8. A tunnel secondary lining modular removal device according to claim 1, characterized in that: A plurality of cutting window slide rails (11) for slidingly installing the cutting window (9) are evenly arranged on the rear arch frame (8) along its circumference, and a material taking window slide rail (12) for slidingly installing the material taking window (10) is arranged between two adjacent cutting window slide rails (11), a dovetail slide groove matching the cutting window slide rail (11) is arranged on the cutting window (9), and a dovetail slide groove matching the material taking window slide rail (12) is arranged on the material taking window (10), and the cutting window slide rail (11) is parallel to the material taking window slide rail (12); A push-pull oil cylinder (13) for driving the cutting window (9) to slide along the cutting window slide rail (11) is provided on one side of the cutting window slide rail (11), and a push-pull oil cylinder for driving the cutting window (10) to slide along the cutting window slide rail (12) is provided on one side of the material taking window slide rail (12).

9. A tunnel secondary lining modular removal device according to claim 1, characterized in that: The width of the material taking window (10) is greater than the width of the cutting window (9); a conical head (14) is provided on one end of the cutting window (9) close to the front arch frame (7); two conical heads (14) are provided on one end of the material taking window (10) close to the front arch frame (7); and connection holes (15) for inserting the conical heads (14) are provided on one side of the front arch frame (7) close to the rear arch frame (8).

10. A tunnel secondary lining modular removal device according to claim 1, characterized in that: The front arch frame (7) comprises a left front arch frame (701), a top front arch frame (702) and a right front arch frame (703) which are hinged in sequence; the rear arch frame (8) comprises a left rear arch frame (801), a top rear arch frame (802) and a right rear arch frame (803) which are hinged in sequence; and a plurality of supporting oil cylinders (16) for supporting the left front arch frame (701), the left rear arch frame (801), the right front arch frame (703) and the right rear arch frame (803) are respectively arranged at the left front part, the left rear part, the right front part and the right rear part of the trolley body (1).

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