Tunnel floor stand trolley

Abstract

The utility model relates to a tunnel vertical frame trolley which comprises a trolley body and an arch frame carrying trolley installed on the top of the trolley body. The two sides of the rear end of the trolley body are each provided with an arch frame lifting unit. Any arch frame lifting unit comprises a lifting longitudinal beam, a translation longitudinal beam, a lifting longitudinal beam, hoisting equipment, at least one first jacking oil cylinder and at least one vertical guide rail; two ends of any guide rail are respectively positioned at the top and the bottom of the trolley main body; a lifting trolley is installed on any guide rail, one end of a lifting longitudinal beam is fixed to the lifting trolley, and the other end of the lifting longitudinal beam backwards extends out of the trolley body. A translation trolley is mounted on the lifting longitudinal beam, and the translation longitudinal beam is fixed on the translation trolley; the lifting longitudinal beam is located on one side of the upper end of the guide rail and driven by the first jacking oil cylinder to ascend and descend. The hoisting equipment is used for driving the lifting longitudinal beam to lift; in the process of transferring the top lagging jack, the top lagging jack moves stably and does not shake, and the safety risk is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field, concretely relates to a tunnel vertical frame trolley. BACKGROUND

[0002] In prior art, in the process of tunnel excavation and support construction, when using trolley type equipment to install top arch frame, first, drive the trolley to the arch frame installation area close to the tunnel face, use the transport vehicle to transport the top arch frame to the tunnel ground near the end of the trolley close to the tunnel entrance; then, use the arch frame lifting device on the trolley to lift the top arch frame above the installation trolley, then, transfer the top arch frame to the arch frame carrying trolley on the top of the trolley, use the carrying trolley to transport the top arch frame forward to the installation position below the front end of the trolley, finally, use the jacking device on the trolley to jack the arch frame to the installation height, then, fix the arch frame on the excavated tunnel wall by anchor rod; the arch frame lifting device in prior art is usually a cantilever crane, which lifts the top arch frame by steel wire rope, during lifting, the top arch frame is easy to shake, for example, the steel wire rope is loose, the lifting load is unevenly distributed or the lifting is suddenly stopped or started, etc., all of which will cause the top arch frame to shake, which may cause the top arch frame to collide with the surrounding structure, and even may cause the sling to unhook, which has safety risk, and due to the shaking of the top arch frame, the top arch frame cannot be accurately positioned on the arch frame carrying trolley, which needs to increase the position adjustment time, affecting the construction efficiency; in addition, the cantilever crane can only lift one set of top arch frame at a time, which is low in efficiency. SUMMARY

[0003] The utility model aims at: in prior art, when using trolley type equipment to install tunnel top arch frame, using cantilever crane to lift the top arch frame, the top arch frame is easy to shake, which may cause the top arch frame to collide with the surrounding structure, the sling to unhook, etc., which has safety risk, provide a tunnel vertical frame trolley.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A tunnel vertical frame trolley, comprising a trolley main body and an arch frame carrying trolley installed on the top of the trolley main body, the arch frame carrying trolley can move along the longitudinal direction between the front end and the rear end on the top of the trolley main body; the rear end of the trolley main body is provided with an arch frame lifting unit on each side; any arch frame lifting unit comprises a lifting longitudinal beam, a translation longitudinal beam, a lifting longitudinal beam, a hoisting device, at least one first jacking cylinder and at least one vertical guide rail; the two ends of any guide rail are located on the top and the bottom of the trolley main body respectively; a lifting trolley is installed on any guide rail, one end of the lifting longitudinal beam is fixed on the lifting trolley, and the other end extends out of the trolley main body; a translation trolley is installed on the lifting longitudinal beam, and the translation longitudinal beam is fixed on the translation trolley; the lifting longitudinal beam is located on one side of the upper end of the guide rail and is driven to lift based on the first jacking cylinder; the hoisting device is used to drive the lifting longitudinal beam to lift.

[0006] The utility model discloses adopt the technical scheme, when needing the top arch from tunnel ground shift to arch carrying trolley, two arch lifting units synchronous operation, first through hoisting equipment with the lifting longitudinal beam is lowered to the lower end of guide rail, with the translation longitudinal beam is removed to the rear end of lifting longitudinal beam, then the top arch is placed on two translation longitudinal beams, again through hoisting equipment with the lifting longitudinal beam is raised to the upper end of guide rail, then with the translation longitudinal beam is removed to the front end of lifting longitudinal beam, then through the first jacking cylinder jacking lifting longitudinal beam, through lifting longitudinal beam with the top arch is lifted to higher height, the top arch with translation longitudinal beam is separated from this time, afterwards, remove arch carrying trolley to the trolley main body rear end and be located below the top arch, then through the first jacking cylinder lower lifting longitudinal beam and top arch, until the top arch is placed on arch carrying trolley, compared with prior art in the tunnel top arch installation of trolley type equipment, utilize cantilever crane to lift the top arch, and the top arch is easy to produce the shaking, can lead to top arch to collide surrounding structure, the phenomena such as cable harness unhooking, the utility model discloses the process of top arch from tunnel ground shift to arch carrying trolley, and the top arch is transversely carried on two translation longitudinal beams or lifting longitudinal beam all the time, and all the time translation moves, and the top arch moves stably, will not produce the shaking, greatly reduced the security risk, and, the top arch of stable movement is easy to accurately fall in position to arch carrying trolley, need not increase position adjustment time, improve the construction efficiency, can simultaneously shift multiple top arch, improve the construction efficiency.

[0007] Further, any arch lifting unit includes two guide rails, two guide rails are arranged in front of and behind each other; two lifting trolleys are arranged on the two guide rails, and one end of the lifting longitudinal beam is fixed on the two lifting trolleys. Compared with only one guide rail, the lifting longitudinal beam moves more stably, which is conducive to the stable lifting of the top arch.

[0008] Further, any arch lifting unit includes two first jacking cylinders, and the two first jacking cylinders are arranged in front of and behind each other. The extension ends of the two first jacking cylinders are hingedly connected to the lifting longitudinal beam. In this way, the lifting longitudinal beam moves stably, which is conducive to the stable lifting of the top arch. At the same time, since the first jacking cylinders are hingedly connected to the lifting longitudinal beam, if the two first jacking cylinders extend by different distances due to insufficient control accuracy, the hinged connection provides a degree of freedom for the rotation of the lifting longitudinal beam, thereby avoiding damage caused by stress concentration at the connection between the first jacking cylinders and the lifting longitudinal beam.

[0009] Further, the guide rail is an I-beam, and the lifting trolley includes a connecting section and a supporting section connected to each other. The connecting section has a C-shaped structure, and a first roller is arranged in the C-shaped structure. One side wing plate of the guide rail is embedded in the C-shaped structure. One end of the lifting longitudinal beam is fixedly connected to the supporting section. The guide rail and the lifting trolley have a simple structure, are easy to manufacture, and are reliable in connection.

[0010] Further, the translation trolley is in C-shaped structure, and a second roller is arranged in the trolley; the lifting longitudinal beam is an I-shaped steel, which comprises a first wing plate and a second wing plate, the first wing plate is fixedly overlapped on the top of the support section, and the second wing plate is embedded in the translation trolley; the translation longitudinal beam is fixedly overlapped on the top of the translation trolley; the lifting longitudinal beam and the translation trolley are simple in structure, easy to manufacture, and reliable in connection.

[0011] Further, two parallel longitudinal beams are arranged between the front end and the rear end of the top of the trolley body, and sliding bases are arranged on the two sides of the bottom of the arch carrying trolley, and the sliding bases on the two sides are respectively slidably arranged on the two longitudinal beams; in this way, the arch carrying trolley can stably move along the longitudinal direction on the top of the trolley body, and the stability of the movement of the top arch is ensured.

[0012] Further, the arch carrying trolley comprises two lifting cross beams and two lifting longitudinal beams arranged between the two lifting cross beams, a plurality of translation trolleys are arranged on each lifting longitudinal beam, and the two lifting cross beams are driven to lift based on the second lifting oil cylinders at the two ends; two carrying trolleys are arranged on each lifting cross beam, and the two ends of each lifting longitudinal beam are carried by one carrying trolley; the top arch is placed on the translation trolleys of the two lifting longitudinal beams, the top arch can move on the lifting longitudinal beams along with the translation trolleys to adjust the longitudinal position, the lifting longitudinal beams can move on the lifting cross beams along with the carrying trolleys to adjust the transverse position of the top arch, when the arch carrying trolley is located at the front end of the trolley body, and the longitudinal and transverse positions of the top arch are adjusted to the positions, the second lifting oil cylinders drive the lifting cross beams to rise, so that the top arch is lifted to the top of the tunnel.

[0013] Further, the hoisting equipment is a winch; the winch directly pulls the lifting longitudinal beam through a steel wire rope, or the winch cooperates with a pulley block to pull the lifting longitudinal beam, so that the lifting longitudinal beam can stably move up and down.

[0014] Further, the trolley body is in a multi-layer structure, any layer except the bottom layer can move along the longitudinal direction compared with the next layer, and the any layer can move to protrude from the front end of the next layer; the arch carrying trolley is arranged on the top layer of the trolley body, and can move along the longitudinal direction between the front end and the rear end of the top layer; in this way, when the top arch is erected, the trolley body can be elongated along the longitudinal direction to be in a stepped shape, so as to be suitable for the construction conditions of the micro-step, three-step construction method.

[0015] Compared with the prior art, the tunnel arch carrying trolley has the beneficial effects that: during the process of transferring the top arch from the tunnel ground to the tunnel arch carrying trolley, the top arch is horizontally carried on the two translation longitudinal beams or the lifting longitudinal beam in the whole process, and is translationally moved in the whole process, so that the top arch is stably moved and cannot shake, and the safety risk is greatly reduced; and the stably moved top arch can be accurately positioned on the tunnel arch carrying trolley, and the position adjustment time is not required, and the construction efficiency is improved; and multiple top arches can be simultaneously transferred, and the construction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a structural schematic view of the arch carrying trolley;

[0018] Figure 3 It is a structural schematic view of the trolley main body;

[0019] Figure 4 It is Figure 3 It is an enlarged view of A in the middle.

[0020] Marked in the figure: 1-trolley main body, 2-arch carrying trolley, 3-arch lifting unit, 4-lifting longitudinal beam, 5-translation longitudinal beam, 6-lifting longitudinal beam, 7-lifting equipment, 8-first jacking oil cylinder, 9-guide rail, 10-lifting trolley, 11-translation trolley, 12-longitudinal beam, 13-sliding base, 14-jacking cross beam, 15-jacking longitudinal beam, 16-longitudinal translation trolley, 17-second jacking oil cylinder, 18-carrying trolley, 19-trolley lower layer, 20-trolley middle layer, 21-trolley upper layer. DETAILED DESCRIPTION

[0021] The utility model will be described in detail below in combination with the drawings.

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0023] The utility model discloses an embodiment provides a kind of tunnel vertical frame trolley, including trolley main body 1 and the arch frame carrying trolley 2 of installation in trolley main body 1 top, arch frame carrying trolley 2 can be moved between the front and rear ends of trolley main body 1 top along longitudinal direction;Trolley main body 1 rear end two sides each are equipped with an arch frame lifting unit 3;Any arch frame lifting unit 3 includes lifting longitudinal beam 4, translation longitudinal beam 5, lifting longitudinal beam 6, hoisting equipment 7, at least one first jacking cylinder 8 and at least one vertical guide rail 9;Two ends of any guide rail 9 are located at the top and bottom of trolley main body 1 respectively;Lifting trolley 10 is installed on any guide rail 9, one end of lifting longitudinal beam 4 is fixed on lifting trolley 10, and the other end stretches out trolley main body 1 rearward;Translation trolley 11 is installed on lifting longitudinal beam 4, and translation longitudinal beam 5 is fixed on translation trolley 11;Lifting longitudinal beam 6 is located on the side of the upper end of guide rail 9, and is driven to lift based on first jacking cylinder 8;Hoisting equipment 7 is used to drive lifting longitudinal beam 4 to lift;Any arch frame lifting unit 3 includes two guide rails 9, and two guide rails 9 are arranged with interval between front and rear;Any arch frame lifting unit 3 includes two first jacking cylinders 8, and two first jacking cylinders 8 are arranged with interval between front and rear;The telescopic end of two first jacking cylinders 8 is hinged with lifting longitudinal beam 6;Guide rail 9 and first jacking cylinder 8 are all fixedly connected at the rear end of trolley main body 1;

[0024] Guide rail 9 is I-steel, and lifting trolley 10 includes connecting section and support section connected with each other;Connecting section is C-shaped structure, and first roller is arranged in the inside of connecting section, and one side wing plate of guide rail 9 is embedded in C-shaped structure;One end of lifting longitudinal beam 4 is fixedly overlapped on support section;

[0025] Translation trolley 11 is C-shaped structure, and second roller is arranged in the inside of translation trolley 11;Lifting longitudinal beam 4 is I-steel, and lifting longitudinal beam 4 includes first wing plate and second wing plate, and first wing plate is fixedly overlapped on the top of support section, and second wing plate is embedded in translation trolley 11;Translation longitudinal beam 5 is fixedly overlapped on the top of translation trolley 11;Support section and translation longitudinal beam 5 are all I-steel;

[0026] Two parallel longitudinal beams 12 are arranged between the front and rear ends of the top of trolley main body 1, and sliding base 13 is arranged on the both sides of the bottom of arch frame carrying trolley 2, and the sliding base 13 on the both sides is slidably installed on two longitudinal beams 12 respectively;

[0027] Arch frame carrying trolley 2 includes two jacking cross beams 14 and two jacking longitudinal beams 15 arranged between the two jacking cross beams 14, a plurality of longitudinal moving trolleys 16 are arranged on each jacking longitudinal beam 15, and the two jacking cross beams 14 are driven to lift based on the second jacking cylinder 17 arranged at each end;Two carrying trolleys 18 are arranged on each jacking cross beam 14, and the two ends of each jacking longitudinal beam 15 are carried by one carrying trolley 18;

[0028] Hoisting equipment 7 is winch;Winch directly pulls lifting longitudinal beam 4 through steel wire rope, or winch and pulley block cooperate to pull lifting longitudinal beam 4, so that lifting longitudinal beam 4 can stably lift and move.

[0029] The trolley main body 1 is a multi-layer structure, any layer except the bottom layer can move longitudinally compared with the next layer, and any layer can move to the front end of the next layer; the arch carrying trolley 2 is installed on the top layer of the trolley main body 1, and can move longitudinally between the front and rear ends of the top layer; generally, the trolley main body 1 can be a two-layer structure or a three-layer structure, in this embodiment, the three-layer structure is selected, the trolley main body 1 includes a trolley lower layer 19, a trolley middle layer 20 and a trolley upper layer 21, two longitudinal beams 12 are arranged on the trolley upper layer 21, and two arch lifting units are arranged at the rear end of the trolley lower layer 19.

[0030] When the top arch needs to be transferred from the tunnel ground to the arch carrying trolley 2, the two arch lifting units 3 operate synchronously, the lifting longitudinal beam 6 is first lowered to the lower end of the guide rail 9 through the hoisting equipment 7, the translation longitudinal beam 5 is moved to the rear end of the lifting longitudinal beam 4, then the top arch is placed on the two translation longitudinal beams 5, the lifting longitudinal beam 4 is then raised to the upper end of the guide rail 9 through the hoisting equipment 7, then the translation longitudinal beam 5 is moved to the front end of the lifting longitudinal beam 4, then the lifting longitudinal beam 6 is jacked up through the first jacking oil cylinder 8, and the top arch is jacked up to a higher height through the lifting longitudinal beam 6, at this time, the top arch is separated from the translation longitudinal beam 5, then the arch carrying trolley 2 is moved to the rear end of the trolley main body and below the top arch, then the lifting longitudinal beam 6 and the top arch are lowered through the first jacking oil cylinder 8 until the top arch is placed on the arch carrying trolley 2; compared with the prior art, when the tunnel top arch is installed by using the trolley device, the top arch is lifted by the cantilever crane, the top arch is easy to shake, which may cause the top arch to collide with the surrounding structure, the sling to be unhooked and other phenomena, and the safety risk problem, in the process of transferring the top arch from the tunnel ground to the arch carrying trolley, the top arch is horizontally carried on the two translation longitudinal beams or the lifting longitudinal beam all the time, and moves translationally all the time, the top arch moves stably and will not shake, which greatly reduces the safety risk; and the stably moving top arch is easy to be accurately positioned on the arch carrying trolley, without the need to increase the position adjustment time, and the construction efficiency is improved; a plurality of top arches can be transferred at the same time, and the construction efficiency is improved.

[0031] The above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tunnel gantry trolley comprising a trolley body (1) and an arch carrier trolley (2) mounted on the top of the trolley body (1), the arch carrier trolley (2) being movable in the longitudinal direction between the front and rear ends on the top of the trolley body (1); characterized in that, The rear end of the trolley main body (1) is provided with an arch lifting unit (3) on each side; any arch lifting unit (3) comprises a lifting longitudinal beam (4), a translation longitudinal beam (5), a lifting longitudinal beam (6), a hoisting device (7), at least one first jacking cylinder (8) and at least one vertical guide rail (9); the two ends of any guide rail (9) are located at the top and bottom of the trolley main body (1) respectively; a lifting trolley (10) is installed on any guide rail (9), one end of the lifting longitudinal beam (4) is fixed on the lifting trolley (10), and the other end extends out of the trolley main body (1); a translation trolley (11) is installed on the lifting longitudinal beam (4), and the translation longitudinal beam (5) is fixed on the translation trolley (11); the lifting longitudinal beam (6) is located on one side of the upper end of the guide rail (9) and is driven to lift based on the first jacking cylinder (8); the hoisting device (7) is used to drive the lifting longitudinal beam (4) to lift.

2. The tunnel stand cart of claim 1, wherein, Any arch lifting unit (3) comprises two guide rails (9), and the two guide rails (9) are arranged in front of and behind each other.

3. The tunnel stand cart of claim 1, wherein, Any arch lifting unit (3) comprises two first jacking cylinders (8), and the two first jacking cylinders (8) are arranged in front of and behind each other; the telescopic ends of the two first jacking cylinders (8) are both hinged to the lifting longitudinal beam (6).

4. The tunnel stand cart of claim 1, wherein, The guide rail (9) is an I-beam, the lifting trolley (10) comprises a connecting section and a supporting section connected together; the connecting section is in a C-shaped structure, a first roller is arranged in the inside of the C-shaped structure, and one side wing plate of the guide rail (9) is embedded in the C-shaped structure; one end of the lifting longitudinal beam (4) is fixedly lapped on the supporting section.

5. The tunnel stand cart of claim 4, wherein, The translation trolley (11) is in a C-shaped structure, and a second roller is arranged in the inside of the C-shaped structure; the lifting longitudinal beam (4) is an I-beam, comprising a first wing plate and a second wing plate, the first wing plate is fixedly lapped on the top of the supporting section, and the second wing plate is embedded in the translation trolley (11); the translation longitudinal beam (5) is fixedly lapped on the top of the translation trolley (11).

6. The tunnel stand cart of claim 1, wherein, Two parallel longitudinal beams (12) are arranged between the front end and the rear end of the top of the trolley main body (1), and the bottom of the arch carrying trolley (2) is provided with a sliding base (13) on each side; the sliding bases (13) on the two sides are respectively slidably installed on the two longitudinal beams (12).

7. The tunnel stand cart of claim 1, wherein, The arch carrying trolley (2) comprises two lifting transverse beams (14) and two lifting longitudinal beams (15) arranged between the two lifting transverse beams (14), a plurality of longitudinal moving trolleys (16) are arranged on each lifting longitudinal beam (15), and the two lifting transverse beams (14) are driven to lift based on one second jacking cylinder (17) at each end; two carrying trolleys (18) are arranged on each lifting transverse beam (14), and the two ends of each lifting longitudinal beam (15) are carried by one carrying trolley (18).

8. The tunnel stand cart of claim 1, wherein, The hoisting device (7) is a winch.

9. The tunnel stand cart of claim 1, wherein, The trolley main body (1) is a multi-layer structure, any layer except the bottom layer can move longitudinally relative to the next layer, and the any layer can move to the front end of the next layer; the arch carrying trolley (2) is installed on the top layer of the trolley main body (1) and can move longitudinally between the front end and the rear end of the top layer.

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