Tunnel lagging jack mounting operation trolley

Abstract

The utility model discloses a tunnel lagging jack installation operation trolley, and belongs to the technical field of tunnel lagging jack installation. The utility model aims to cover the whole section or the section of an upper-middle pilot tunnel of step excavation and simultaneously install a plurality of steel arches. According to the technical scheme, a main portal frame is composed of multiple sets of portal type supports which are longitudinally arranged in parallel, a lifting frame is installed at the rear end of the top of the main portal frame, and a walking mechanism comprises four sets of wheels; the two first lifting guide beams are longitudinally arranged in parallel, each first lifting guide beam is fixed to the rear end of the top of the main portal through two vertical first lifting oil cylinders, and each first lifting guide beam is slidably provided with a plurality of first arch frame supporting bases. The longitudinal sliding device is mounted at the top of the main portal frame; and the two second lifting guide beams are longitudinally arranged in parallel, each second lifting guide beam is fixed to a longitudinal sliding rack in the longitudinal sliding device through two vertical second lifting oil cylinders, and each second lifting guide beam is slidably provided with a plurality of second arch support bases. The device is used for mounting the tunnel lagging jack.

Description

Technical Field

[0001] The utility model discloses a tunnel arch frame installation operation trolley, which belongs to the technical field of tunnel arch frame installation. Background Art

[0002] Arch support is a support measure for strengthening underground projects. After tunnel excavation, in order to effectively restrain and control the deformation of the surrounding rock and enhance the stability of the surrounding rock, it is necessary to erect an arch and form a composite support with anchor rods, shotcrete, and steel mesh to protect and enhance the strength and self-stabilizing ability of the surrounding rock.

[0003] In the early days, tunnel arch installation construction used manual lifting and loaders to cooperate with construction. In recent years, some have adopted three-arm arch installation vehicles. The installation vehicle is a front cantilever with an operating frame. The three arms and three frames can provide fixed operation points, but it cannot cover the entire section or the upper and middle guide pit sections. Local reinforcement and measures require repeated retraction of the cantilever and readjustment of the working position. It cannot quickly and conveniently reach any working position on the section, and can only install a single arch frame. Local adjustments also need to be made repeatedly, which has great limitations in use. Therefore, there is a need for an arch installation machine that can cover the entire section or the upper and middle guide pit sections, install multiple arch frames at the same time, and take into account the needs of other excavation operations. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a tunnel arch frame installation operation trolley that can cover the entire section or the middle guide pit section of the stepped excavation and can install multiple steel arch frames at the same time.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tunnel arch frame installation operation trolley, comprising a main portal, a lifting frame, a first lifting guide beam, a longitudinal sliding device, a second lifting guide beam and a walking mechanism, wherein the main portal frame is a plurality of portal brackets arranged in parallel longitudinally, and the bottom and top of the portal bracket are connected together by two lower longitudinal beams and a plurality of upper longitudinal beams to form an integral body, and the lifting frame for lifting the arch frame and placing it on the first lifting guide beam is installed at the rear end of the top of the main portal frame, and the walking mechanism comprises four sets of wheels, which are respectively installed at the two ends of the two lower longitudinal beams;

[0006] The two first lifting guide beams are arranged longitudinally and parallel, and each is fixed to the rear end of the top of the main portal frame through two vertical first lifting cylinders, and a plurality of first arch support seats are slidably mounted on each first lifting guide beam;

[0007] The longitudinal sliding device is installed on the top of the main portal, and the longitudinal sliding device includes two longitudinal sliding guide beams, a longitudinal sliding platform and two longitudinal sliding oil cylinders. The two longitudinal sliding guide beams are longitudinally and parallelly fixed on the top of the main portal, and the longitudinal sliding platform spans the front ends of the two longitudinal sliding guide beams and is slidably connected to the longitudinal sliding guide beams. Each longitudinal sliding guide beam is equipped with a longitudinal sliding oil cylinder. The longitudinal sliding oil cylinder is horizontally arranged, the cylinder body is connected to the rear end of the main portal, and the cylinder rod is connected to the longitudinal sliding platform;

[0008] Two second lifting guide beams are longitudinally arranged in parallel, and each is fixed on the longitudinal sliding platform through two vertical second lifting cylinders, and a plurality of second arch support seats are slidably mounted on each second lifting guide beam, and the number of the second arch support seats is the same as the number of the first arch support seats;

[0009] The rod of the longitudinal sliding cylinder is in the retracted position, the rear end of the second lifting guide beam is nested and overlapped with the front end of the first lifting guide beam, the length of the nested overlapping part is adapted to the total length of the plurality of second arch support seats, the front end of the second lifting guide beam is aligned with the front end of the main portal, and when the longitudinal sliding cylinder lever is extended, the longitudinal sliding platform drives the second lifting guide beam to extend forward.

[0010] Preferably, it also includes an integral vertical lifting device, wherein each of the four corners of the main gantry is equipped with an integral vertical lifting device, and the integral vertical lifting device is a structure in which a third lifting cylinder is fixed under the corbel.

[0011] Preferably, it also includes an integral translation and centering device, and an integral translation and centering device is arranged under each of the integral vertical lifting devices. The structure of the integral translation and centering device is as follows: the slide is slidably installed on the base, the translation and centering cylinder is horizontally arranged, the cylinder body is connected to the base, the cylinder rod is connected to the slide, and the integral vertical lifting device is fixedly installed on the slide.

[0012] Preferably, the structure of the lifting frame is: the bottom of the square frame and the cylinder body of the lifting cylinder are hinged to the top of the main portal, the lever of the lifting cylinder is hinged to the top of the square frame, a fixed pulley is also fixed on the top of the square frame, the winch is fixed on the top of the main portal, and the hook of the winch passes around the fixed pulley and then goes vertically downward.

[0013] Preferably, the number of the first arch support seats on the first lifting guide beam is 2-4, and the number of the second arch support seats on the second lifting guide beam is also 2-4 accordingly.

[0014] Preferably, the structure of the longitudinal sliding platform is: four concave sliding blocks are sleeved on the longitudinal sliding guide beam, and rollers are arranged between the outer surface of the longitudinal sliding guide beam, and the four concave sliding blocks are fixed as a whole by transverse and longitudinal steel beams.

[0015] Preferably, among the four sets of wheels of the walking mechanism, at least two sets of wheels are equipped with power mechanisms.

[0016] Preferably, upper working platforms are fixedly installed on both sides of the longitudinal sliding platform, and lower working platforms are installed on both sides of the middle part of the main portal.

[0017] Preferably, the first arch support seat and the second arch support seat are both groove-shaped, and rollers are provided at the bottom.

[0018] Compared with the prior art, the utility model has the following beneficial effects.

[0019] 1. The utility model can cover the whole section or the upper middle guide pit section, and multiple arch frames can be installed at the same time, which is easy to operate and has high work efficiency.

[0020] 2. The upper working platform and the lower working platform in the utility model provide a construction platform for construction personnel. In addition to arch installation, they can also carry out multi-process operations, such as anchoring, setting steel mesh, etc., which is safe and reliable.

[0021] 3. The integral vertical lifting device in the utility model can increase the lifting range of the utility model in the vertical direction, thereby expanding the application scope of the utility model.

[0022] 4. The integral translation centering device in the utility model realizes the centering requirement during the arch frame installation process, making the utility model more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the utility model.

[0025] Figure 2 for Figure 1 Right view of .

[0026] Figure 3 It is a structural schematic diagram of the lifting frame in the utility model.

[0027] Figure 4 It is a structural schematic diagram of the longitudinal sliding stand in the utility model.

[0028] In the figure: 1 is the main portal, 11 is the portal bracket, 12 is the lower longitudinal beam, 2 is the lifting frame, 21 is the square frame, 22 is the lifting cylinder, 23 is the fixed pulley, 24 is the winch, 25 is the hook, 3 is the first lifting guide beam, 31 is the first lifting cylinder, 32 is the first arch support seat, 4 is the longitudinal sliding device, 41 is the longitudinal sliding guide beam, 42 is the longitudinal sliding platform, 421 is the concave slider, 422 is the roller, 43 is the longitudinal sliding cylinder, 5 is the second lifting guide beam, 51 is the second lifting cylinder, 52 is the second arch support seat, 6 is the walking mechanism, 61 is the wheel, 7 is the arch, 8 is the overall vertical lifting device, 81 is the bull leg, 82 is the third lifting cylinder, 9 is the overall translation centering device, 91 is the base, 92 is the slide seat, and 93 is the translation centering cylinder. DETAILED DESCRIPTION

[0029] Combined with the drawings in the embodiments of the utility model, the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical contents disclosed by the utility model. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0031] It should be noted that, in the present invention, the direction close to the tunnel section is referred to as the front, and the direction away from the tunnel section is referred to as the rear.

[0032] The utility model provides the following embodiments.

[0033] like Figure 1 , Figure 2As shown, the utility model is a tunnel arch frame installation operation trolley, comprising a main portal frame 1, a lifting frame 2, a first lifting guide beam 3, a longitudinal sliding device 4, a second lifting guide beam 5 and a walking mechanism 6, wherein the main portal frame 1 is a plurality of portal brackets 11 arranged in parallel longitudinally, and the bottom and top of the portal bracket 11 are connected together by two lower longitudinal beams 12 and a plurality of upper longitudinal beams to form an integral body, and the lifting frame 2 for lifting the arch frame 7 and placing it on the first lifting guide beam 3 is installed at the rear end of the top of the main portal frame 1, and the walking mechanism 6 includes four sets of wheels 61, which are respectively installed at the two ends of the two lower longitudinal beams 12;

[0034] The two first lifting guide beams 3 are longitudinally arranged in parallel, and each is fixed to the rear end of the top of the main portal frame 1 through two vertical first lifting cylinders 31. A plurality of first arch frame support seats 32 are slidably mounted on each first lifting guide beam 3. Two first arch frame support seats 32 corresponding to each other on the two first lifting guide beams 3 form a group, supporting a group of arch frames 7.

[0035] The longitudinal sliding device 4 is installed on the top of the main portal 1, and the longitudinal sliding device 4 includes two longitudinal sliding guide beams 41, a longitudinal sliding platform 42 and two longitudinal sliding oil cylinders 43. The two longitudinal sliding guide beams 41 are longitudinally and parallelly fixed on the top of the main portal 1, and the longitudinal sliding platform 42 spans the front ends of the two longitudinal sliding guide beams 41 and is slidably connected to the longitudinal sliding guide beams 41. Each longitudinal sliding guide beam 41 is equipped with a longitudinal sliding oil cylinder 43. The longitudinal sliding oil cylinder 43 is horizontally arranged, the cylinder body is connected to the rear end of the main portal 1, and the cylinder rod is connected to the longitudinal sliding platform 42;

[0036] The two second lifting guide beams 5 are longitudinally arranged in parallel, and each is fixed on the longitudinal sliding platform 42 by two vertical second lifting cylinders 51. A plurality of second arch frame support seats 52 are slidably mounted on each second lifting guide beam 5. The number of the second arch frame support seats 52 is the same as the number of the first arch frame support seats 32. Two second arch frame support seats 52 corresponding to each other on the two second lifting guide beams 5 form a group to support a group of arch frames.

[0037] The cylinder rod of the longitudinal sliding cylinder 43 is in the retracted position. When the second lifting guide beam 5 is pulled to the rearmost position, the rear end of the second lifting guide beam 5 and the front end of the first lifting guide beam 3 form a nested overlap. The length of the nested overlapping part is adapted to the total length of the plurality of second arch support seats 52. The front end of the second lifting guide beam 5 is aligned with the front end of the main portal 1. When the lever of the longitudinal sliding cylinder 43 is extended, the longitudinal sliding platform 42 drives the second lifting guide beam 5 to extend forward.

[0038] The utility model also includes an integral vertical lifting device 8. An integral vertical lifting device 8 is installed at each of the four corners of the main gantry 1. The integral vertical lifting device 8 is a structure in which a third lifting cylinder 82 is fixed under a bracket 81. When the cylinder rod of the third lifting cylinder 82 is extended, the cylinder body is supported on the ground to lift the entire machine. When the cylinder rod is retracted, the entire machine descends, the cylinder body leaves the ground, and the walking mechanism 6 falls to the ground.

[0039] The utility model also includes an integral translation centering device 9, and an integral translation centering device 9 is arranged under each of the integral vertical lifting devices 8. The structure of the integral translation centering device 9 is as follows: a slide 92 is slidably installed on a base 91, a translation centering cylinder 93 is horizontally arranged, the cylinder body is connected to the base 91, the cylinder rod is connected to the slide 92, and the integral vertical lifting device 8 is fixedly installed on the slide 92.

[0040] like Figure 3 As shown, the structure of the lifting frame 2 is: the bottom of the square frame 21 and the cylinder body of the lifting cylinder 22 are hinged on the top of the main portal 1, the lever of the lifting cylinder 22 is hinged on the top of the square frame 21, and a fixed pulley 23 is fixed on the top of the square frame 21. The winch 24 is fixed on the top of the main portal 1, and the hook 25 of the winch 24 passes around the fixed pulley 23 and then goes vertically downward. When the square frame 21 is rotated to a vertical position, the highest position of the hook 25 is higher than the position of the first arch support seat 32 on the first lifting guide beam 3.

[0041] The number of the first arch support seats 32 on the first lifting guide beam 3 is 2-4, and the number of the second arch support seats 52 on the second lifting guide beam 5 is also 2-4 accordingly.

[0042] like Figure 4 As shown, the structure of the longitudinal sliding stand 42 is: four concave sliding blocks 421 are sleeved on the longitudinal sliding guide beam 41, and rollers 422 are arranged between the outer surfaces of the longitudinal sliding guide beam 41, and the four concave sliding blocks 421 are fixed as a whole by transverse and longitudinal steel beams.

[0043] Among the four sets of wheels 61 of the traveling mechanism 6, at least two sets of wheels 61 are equipped with power mechanisms.

[0044] Upper working platforms are fixedly installed on both sides of the longitudinal sliding platform 42, and lower working platforms are installed on both sides of the middle part of the main portal 1.

[0045] The first arch support seat 32 and the second arch support seat 52 are both groove-shaped structures, and rollers are provided at the bottom, so as to be in rolling contact with the arch 7 , thereby reducing the wear on the arch 7 .

[0046] The working process of the utility model is as follows: the whole machine moves to the position where the arch frame needs to be supported through the walking mechanism 6, and the overall vertical lifting device 8 is lifted to support the whole machine. The upper guide arch frame and the two middle guide arch frames are assembled on the ground, and the hook 25 in the lifting frame 2 lifts them. At this time, the first arch frame support seat 32 on the first lifting guide beam 3 is at the rear end, the first lifting cylinder 31 and the second lifting cylinder 51 are both in the lowered state, and the longitudinal sliding cylinder 43 is in the retracted state. The arch frame 7 lifted by the hook 25 is placed on the first arch frame support seat 32, the first lifting cylinder 31 is raised, and the construction personnel push the first arch frame support seat 32 forward to overlap with the second lifting guide beam 5. After the first lifting cylinder 31 is lowered, the arch frame 7 is supported by the second arch frame support seat 52 during the descent process. The construction personnel push the second arch frame support seat 52 to the front end of the second lifting guide beam 5, and the longitudinal sliding cylinder 43 is pushed out to push the longitudinal sliding platform 42 and the second lifting guide beam 5 thereon into the upper guide hole. The stroke of the longitudinal sliding cylinder 43 is 4m. After it is in place, the second lifting cylinder 51 lifts the second lifting guide beam 5 to the top of the tunnel, and the construction personnel install the arch frame 7. The installation of the lower guide arch frame can be pushed to the designated workstation using the utility model, and the construction personnel manually position and install it. The maximum lifting height of the second lifting cylinder 51 is 500mm. If the stroke of the second lifting cylinder 51 does not meet the height of the tunnel during construction, the overall vertical lifting device 8 is raised, and the maximum lifting height of its third lifting cylinder 82 is 600mm. In the utility model, there are four first arch support seats 32 and four second arch support seats 52, and four arches 7 can be transported and installed at one time, which is very efficient. In addition, the utility model also has an integral translation centering device, which can conveniently adjust the centering of the arch 7, making the installation more convenient. After the arch 7 is installed, the cylinders return to their positions, and the utility model retreats to continue excavating the tunnel.

[0047] In addition to installing the arch frame 7, the utility model can also provide a working platform for construction workers to perform multiple operations such as anchoring and laying steel mesh, which is safe and reliable.

[0048] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A tunnel arch installation operation trolley, comprising a main portal (1), a lifting frame (2), a first lifting guide beam (3), a longitudinal sliding device (4), a second lifting guide beam (5) and a walking mechanism (6), wherein the main portal (1) is a plurality of portal brackets (11) arranged in parallel longitudinally, the bottom and top of the portal brackets (11) are connected together by two lower longitudinal beams (12) and a plurality of upper longitudinal beams to form an integral body, the lifting frame (2) for lifting the arch (7) and placing it on the first lifting guide beam (3) is installed at the rear end of the top of the main portal (1), and the walking mechanism (6) comprises four sets of wheels (61) respectively installed at the two ends of the two lower longitudinal beams (12); Features: The two first lifting guide beams (3) are arranged longitudinally and parallel to each other, and are each fixed to the rear end of the top of the main portal frame (1) through two vertical first lifting cylinders (31), and a plurality of first arch support seats (32) are slidably mounted on each first lifting guide beam (3); The longitudinal sliding device (4) is installed on the top of the main portal (1), and comprises two longitudinal sliding guide beams (41), a longitudinal sliding platform (42) and two longitudinal sliding cylinders (43). The two longitudinal sliding guide beams (41) are longitudinally and parallelly fixed on the top of the main portal (1). The longitudinal sliding platform (42) spans the front ends of the two longitudinal sliding guide beams (41) and is slidably connected to the longitudinal sliding guide beams (41). Each longitudinal sliding guide beam (41) is equipped with a longitudinal sliding cylinder (43). The longitudinal sliding cylinder (43) is horizontally arranged, the cylinder body is connected to the rear end of the main portal (1), and the cylinder rod is connected to the longitudinal sliding platform (42); Two second lifting guide beams (5) are longitudinally arranged in parallel, and each is fixed on the longitudinal sliding platform (42) through two vertical second lifting cylinders (51); a plurality of second arch support seats (52) are slidably mounted on each second lifting guide beam (5), and the number of the second arch support seats (52) is the same as the number of the first arch support seats (32); The rod of the longitudinal sliding oil cylinder (43) is located in a retracted position, the rear end of the second lifting guide beam (5) and the front end of the first lifting guide beam (3) are nested and overlapped, the length of the nested and overlapping part is adapted to the total length of the plurality of second arch support seats (52), and the front end of the second lifting guide beam (5) is aligned with the front end of the main portal (1).

2. A tunnel arch installation operation trolley according to claim 1, characterized in that: It also includes an integral vertical lifting device (8), wherein each of the four corners of the main gantry (1) is equipped with an integral vertical lifting device (8), and the integral vertical lifting device (8) is a structure in which a third lifting cylinder (82) is fixed under a bracket (81).

3. A tunnel arch installation operation trolley according to claim 2, characterized in that: It also includes an integral translation centering device (9), wherein an integral translation centering device (9) is arranged below each integral vertical lifting device (8), and the structure of the integral translation centering device (9) is as follows: a slide seat (92) is slidably mounted on a base (91), a translation centering oil cylinder (93) is horizontally arranged, a cylinder body is connected to the base (91), a cylinder rod is connected to the slide seat (92), and the integral vertical lifting device (8) is fixedly mounted on the slide seat (92).

4. A tunnel arch installation operation trolley according to any one of claims 1 to 3, characterized in that: The structure of the lifting frame (2) is as follows: the bottom of the square frame (21) and the cylinder body of the lifting cylinder (22) are both hinged on the top of the main gantry (1); the lever of the lifting cylinder (22) is hinged on the top of the square frame (21); a fixed pulley (23) is also fixed on the top of the square frame (21); a winch (24) is fixed on the top of the main gantry (1); and a hook (25) of the winch (24) passes over the fixed pulley (23) and then moves vertically downward.

5. A tunnel arch installation operation trolley according to any one of claims 1 to 3, characterized in that: The number of the first arch support seats (32) on the first lifting guide beam (3) is 2-4, and the number of the second arch support seats (52) on the second lifting guide beam (5) is also correspondingly 2-4.

6. A tunnel arch installation operation trolley according to any one of claims 1 to 3, characterized in that: The structure of the longitudinal sliding platform (42) is as follows: four concave sliding blocks (421) are sleeved on the longitudinal sliding guide beam (41), and rollers (422) are arranged between the outer surfaces of the longitudinal sliding guide beam (41), and the four concave sliding blocks (421) are fixed as a whole by transverse and longitudinal steel beams.

7. A tunnel arch installation operation trolley according to any one of claims 1 to 3, characterized in that: Among the four sets of wheels (61) of the walking mechanism (6), at least two sets of wheels (61) are equipped with power mechanisms.

8. A tunnel arch installation operation trolley according to any one of claims 1 to 3, characterized in that: An upper working platform is fixedly installed on both sides of the longitudinal sliding platform (42), and a lower working platform is installed on both sides of the middle of the main door frame (1).

9. A tunnel arch installation operation trolley according to any one of claims 1 to 3, characterized in that: The first arch support seat (32) and the second arch support seat (52) are both in a groove shape, and rollers are arranged at the bottom.

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