Tunnel component transport vehicle with folding arm crane

Abstract

The utility model belongs to the technical field of motor vehicles, and particularly relates to a tunnel component transport vehicle with a folding arm crane, which comprises a vehicle frame, a first supporting piece for supporting a box culvert or a duct piece is rotatably assembled on the vehicle frame, and a rotation driving piece for driving the first supporting piece to rotate by 90 degrees is mounted on the vehicle frame; second supporting pieces used for supporting the box culvert or the duct piece are arranged on the portions, on the two sides of the first supporting piece, of the vehicle frame correspondingly and movably assembled on the vehicle frame in the length direction of the vehicle frame. And the frame is also provided with a folding arm crane for hoisting an object. The tunnel component transport vehicle with the folding arm crane not only can realize the rotation function of transported tunnel components, but also can realize the hoisting function of materials for construction in a tunnel, and improves the construction efficiency of the tunnel.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the motor vehicle technical field, concretely relates to a tunnel component transport vehicle with a folding arm crane. BACKGROUND

[0002] With the gradual acceleration of urbanization construction, the tunnels to be built also gradually increase. The tunnels can relieve ground traffic pressure, improve traffic safety, and also can concentrate municipal pipeline laying and integrate underground space utilization. At present, the shield machine, an automatic tunneling equipment, is usually used to excavate tunnels. After the tunnel excavation is completed, prefabricated cement segments are laid on the inner wall of the tunnel as the key structure of the tunnel support system. In the tunnel constructed by the shield method, the segments are assembled on the inner wall of the tunnel in a ring-by-ring manner and bear the pressure of the surrounding soil, underground water pressure and various loads such as upper buildings. The box culvert is usually located at the lower layer of the tunnel, and the tunnel inner wall formed by the segments surrounds the upper and surrounding of the box culvert to provide a relatively closed and stable space environment for the box culvert, so that the box culvert can focus on playing the function of internal transportation and maintenance channel.

[0003] The segments and the box culvert are usually transported by the box culvert segment transport vehicle disclosed in the Chinese patent application file with the application publication number CN108216424A. The vehicle frame assembly of the box culvert segment transport vehicle includes a main vehicle frame located at the upper layer, and a front auxiliary vehicle frame and a rear auxiliary vehicle frame respectively installed below the main vehicle frame by the hinged manner. A plurality of groups of segment supports and box culvert supports for supporting the segments are arranged on the top surface of the main vehicle frame in a longitudinal manner. In each transportation of the box culvert or the segments, either the segments or the box culvert is transported, and they are not mixed. The site of the box culvert segment transport vehicle is generally narrow. In order to facilitate the transportation of the box culvert or the segments, the box culvert or the segments are generally placed along the length direction of the vehicle, so that after the transportation of the box culvert or the segments is completed, the box culvert or the segments needs to be rotated by 90°. The above-mentioned box culvert segment transport vehicle itself cannot adjust the direction of the transported components, and the box culvert crane matched with part of the shield machine does not have the horizontal rotation function of the box culvert. When the box culvert is transported, the external rotation equipment needs to be used, which is time-consuming. In addition, the work of installing the working pipe behind the shield machine and cleaning the sundries needs other engineering vehicles to enter the cooperation, which causes the parallel operation with the segment box culvert transport vehicle. At this time, traffic coordination and avoidance work need to be carried out, which is time-consuming and affects the operation efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a tunnel component transport vehicle with a folding arm crane to solve the technical problem of low tunnel construction operation efficiency.

[0005] To solve the above-mentioned problems, the utility model provides a tunnel component transport vehicle with a folding arm crane which adopts the following technical scheme:

[0006] The utility model provides a tunnel component transport vehicle with a folding arm crane, comprising a frame, a first support for supporting a box culvert or a segment rotatably mounted on the frame, a rotary drive for driving the first support to rotate 90 DEG, a second support for supporting a box culvert or a segment movably mounted on the frame on both sides of the first support, and a folding arm crane mounted on the frame.

[0007] The utility model discloses a tunnel component transport vehicle with a folding arm crane, comprising a frame, a first support for supporting a box culvert or a segment rotatably mounted on the frame, a rotary drive for driving the first support to rotate 90 DEG, a second support for supporting a box culvert or a segment movably mounted on the frame on both sides of the first support, and a folding arm crane mounted on the frame.

[0008] Preferably, the frame has a downwardly recessed groove, the first support is located in the groove, and the second support is located outside the groove.

[0009] When the box culvert or the segment is placed on the first support, the contact part of the first support with the box culvert or the segment is located below the top of the frame, thereby reducing the space occupation in the height direction of the vehicle to adapt to the height of the tunnel.

[0010] Further, the first support has an arc-shaped support surface adapted to the shape of the bottom of the box culvert or the outer shape of the segment, and the second support has a support inclined surface.

[0011] The arc-shaped support surface on the first support has a larger contact area with the box culvert or the segment. Since the second support is movable, the inclined surface can adjust the contact angle and the contact position according to the curvature of the bottom of the segment or the box culvert.

[0012] Further, the support inclined surface is provided with a rubber protective pad.

[0013] The rubber protective pad can avoid the rigid contact between the second support and the segment or the box culvert, thereby avoiding damaging the surface of the segment or the box culvert.

[0014] Preferably, the rotary driving member is located at the lower side of the first support, the lower side of the first support is connected with a rotary bearing, and the first support is further connected with a hinged base; the rotary driving member has a driving end capable of moving linearly, the driving end is hinged with the hinged base, and the fixed end of the rotary driving member is hinged with the frame.

[0015] Beneficial effects: the rotary driving member realizes the rotation of the first support through linear movement, and the form is simple without the need to set a complex rotating mechanism.

[0016] Further, the hinged base is provided with two hinged bases arranged at intervals in the circumferential direction of the first support; and the driving end of the rotary driving member is detachably connected with the corresponding hinged base through a pin shaft.

[0017] Beneficial effects: the rotary driving member with a smaller driving end activity stroke is selected, when the rotary driving member pushes one of the hinged bases to rotate to a set position, the pin shaft between the hinged base and the rotary driving member is removed, and then the rotary driving member is connected with the other hinged base, at this time, the rotary driving member can continue to drive the first support to rotate until the first support rotates to 90°. This design can make full use of the limited structural space, reduce the economic cost of the rotary driving member, and also save the installation space.

[0018] Further, the frame is provided with a linear driving member and a sliding guide seat corresponding to the second support one by one, the second support and the sliding guide seat are guided and slidably connected in the length direction of the frame, and the driving end of the linear driving member is connected with the second support.

[0019] Beneficial effects: the second support is driven by the linear driving member, the structure form is convenient for installation and reduces the personnel pushing; at the same time, under the guidance of the sliding guide seat, the second support can stably move linearly, thereby ensuring stable contact with the box culvert or the segment.

[0020] Further, the sliding guide seat is provided with a guide long slot extending along the length direction of the frame, and the second support is provided with a guide shaft penetrating through the guide long slot and slidably connected with the guide long slot.

[0021] Beneficial effects: the structure of the guide shaft and the guide sliding slot in cooperation for guidance is simpler and has high reliability.

[0022] Further, the folding arm crane is detachably connected with the frame.

[0023] Beneficial effects: when the folding arm crane is not used, a structure for supporting the box culvert or the segment can be arranged at the installation position of the folding arm crane, thereby realizing a larger number of one-time transported box culverts or segments.

[0024] Further, the folding arm crane comprises a mounting frame, a fixed support leg assembled on the mounting frame, a hydraulic support leg movably assembled on the fixed support leg in a horizontal direction, an inner arm assembly, an outer arm assembly, a rotary support rotatably assembled on the mounting frame, and a rotating table assembly mounted on the rotary support, a first luffing oil cylinder being hinged between the rotating table assembly and the inner arm assembly, a second luffing oil cylinder being hinged between the inner arm assembly and the outer arm assembly, and an extension oil cylinder being arranged on the outer arm assembly.

[0025] Beneficial effects: The folding arm crane is convenient to mount and dismount.

[0026] Further, the hydraulic support leg is located below the vehicle frame.

[0027] Beneficial effects: When the folding arm crane is working, the hydraulic support leg can be supported on the ground, and the load of the folding arm crane and the hoisted object can be mostly transmitted to the ground, so that the maximum load capacity of the vehicle frame can be reduced, and the manufacturing cost of the vehicle frame can be reduced; in addition, when the folding arm crane is used, the hydraulic support leg located below the vehicle frame does not increase the occupied space in the vertical direction, so that interference with the top of the tunnel can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation. Like or corresponding reference numerals in the drawings and description denote like or corresponding parts.

[0029] Figure 1 is a schematic view of the tunnel component transport vehicle with the folding arm crane in the present application when transporting a box girder;

[0030] Figure 2 is a schematic view of the tunnel component transport vehicle with the folding arm crane in the present application when transporting a segment;

[0031] Figure 3 is a structural schematic view of the vehicle frame of the tunnel component transport vehicle with the folding arm crane in the present application;

[0032] Figure 4 is a top view of the first support before rotation;

[0033] Figure 5 is a top view of the first support after rotation by 90°;

[0034] Figure 6The assembly schematic view between the second support, the linear driving element and the vehicle frame;

[0035] Figure 7 The assembly schematic view between the folding arm crane and the vehicle frame;

[0036] Figure 8 The structure schematic view of the folding arm crane.

[0037] Explanation of reference signs:

[0038] 1, vehicle frame; 2, first support; 3, second support; 4, rotary driving element; 5, linear driving element; 6, folding arm crane; 7, rotary bearing; 8, hinge base; 9, pin shaft; 10, oil cylinder fixing base one; 11, rotary bearing mounting seat; 12, sliding guide seat; 13, oil cylinder fixing base two; 14, groove; 15, fastening screw; 16, pad; 17, fastening nut; 18, outrigger oil cylinder; 19, hydraulic outrigger; 20, horizontal oil cylinder; 21, fixed outrigger; 22, rotary support; 23, central rotary body; 24, turntable assembly; 25, first luffing oil cylinder; 26, inner arm assembly; 27, second luffing oil cylinder; 28, telescopic oil cylinder; 29, outer arm assembly; 30, valve frame; 31, hydraulic rotary device; 32, mounting frame; 33, box culvert; 34, pipe piece; 35, guide long groove; 36, guide shaft; 37, rubber protection pad. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be known by those skilled in the art that the embodiments described below are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0040] The principles and spirits of the present application will be explained in detail below with reference to several representative embodiments of the present application.

[0041] Embodiment 1 of the tunnel component transport vehicle with a folding arm crane provided by the present application:

[0042] As shown in Figure 1 , the tunnel component transport vehicle with a folding arm crane is a "mechanical-electrical-hydraulic" integrated product, which comprises a vehicle frame 1, and a transport vehicle hydraulic system composed of a walking driving hydraulic system, a steering hydraulic system, a suspension hydraulic system, a heat dissipation system and an auxiliary hydraulic system is installed on the vehicle frame 1. In this embodiment, the length direction of the vehicle frame 1 is taken as the front-rear direction for convenience of description.

[0043] A cab is arranged on each of the front and rear sides of the vehicle frame 1, such as Figure 2 andFigure 3 As shown in the drawings, the frame 1 has a downwardly concave groove 14 near the cab on the front side, and a first support 2 for supporting a box culvert 33 or a pipe segment 34 is rotatably arranged in the groove 14. The first support 2 is in the form of a bracket and can carry the box culvert 33 or the pipe segment 34. The bottom of the first support 2 is connected with a rotary bearing 7 by bolts, and the rotary bearing 7 is rotatably arranged on the frame 1. The lower part of the rotary bearing 7 is connected with a rotary bearing mounting seat 11 by bolts, and the rotary bearing mounting seat 11 is fixed on the frame 1.

[0044] As shown in the drawings, Figure 3 and Figure 4 two hinge seats 8 are connected with the first support 2, and the two hinge seats 8 are arranged at intervals in the circumferential direction of the first support 2. The frame 1 is provided with a cylinder mounting seat 10 beside the rotary bearing mounting seat 11, and a rotary drive 4 is hingedly connected between one of the hinge seats 8 and the cylinder mounting seat 10. In this embodiment, the rotary drive 4 is a cylinder, the fixed end of the cylinder is hingedly connected with the cylinder mounting seat 10, and the driving end of the cylinder is hingedly connected with one of the hinge seats 8 through a pin shaft 9. The pin shaft 9 can be removed, and after the removal, the driving end of the cylinder can be connected with the other hinge seat 8. Since the driving end of the rotary drive 4 has a limited travel range, when the rotary drive 4 pushes one of the hinge seats 8 to rotate to the limit position, the pin shaft 9 between the hinge seat 8 and the rotary drive 4 is removed, and then the rotary drive 4 is connected with the other hinge seat 8. At this time, the rotary drive 4 can continue to drive the first support 2 to rotate until the first support 2 is rotated to 90°. This design can reduce the requirements for the rotary drive 4, and a rotary drive 4 with a smaller travel range can be selected. The limited structural space of the frame 1 can be fully utilized, the economic cost of the rotary drive 4 is reduced, and the installation space is also saved. The first support 2 supports tunnel members such as the box culvert 33 or the pipe segment 34, and therefore under the action of the rotary drive 4, the rotation of the transported tunnel members can be realized. The schematic view after rotation is shown in Figure 4 .

[0045] In this embodiment, as shown in the drawings, Figure 2 and Figure 3 the first support 2 is in the form of a bracket, which is composed of four bottom beams arranged at intervals and four top beams arranged at intervals and connected at the top of each bottom beam. The top beam has an arc-shaped support surface which is adapted to the shape of the bottom of the box culvert 33 or the outer shape of the pipe segment 34.

[0046] As shown in the drawings, Figure 3 and Figure 6As shown, to ensure the stability of the box culvert 33 or the pipe segment 34 during transportation, the vehicle frame 1 is further provided with a pair of second supporting members 3 on the front and rear sides of the recess 14 respectively, and the two second supporting members 3 in each pair are arranged in the left-right direction. The vehicle frame 1 is provided with a linear drive member 5 and a sliding guide seat 12 corresponding to each second supporting member 3. The linear drive member 5 is also an oil cylinder, and the fixed end of the linear drive member 5 is fixed on the vehicle frame 1 through an oil cylinder fixing seat 13. The sliding guide seat 12 is provided with a guide long groove 35 extending in the front-rear direction, and the second supporting member 3 is provided with a guide shaft 36 penetrating through the guide long groove 35 and slidingly matched with the guide long groove 35. The driving end of the linear drive member 5 is connected with the second supporting member 3 to drive the second supporting member 3 to move in the front-rear direction. After the second supporting member 3 is moved to the position, the second supporting member 3 can be in supporting contact with the box culvert 33 or the pipe segment 34, and the four second supporting members 3 can provide four supporting points to ensure the stability of the box culvert 33 or the pipe segment 34. In the embodiment, the second supporting member 3 is provided with a supporting inclined surface, and a rubber protective pad 37 is mounted on the supporting inclined surface. A counterbore is formed in the rubber protective pad 37, and a bolt is arranged in the counterbore to fix the rubber protective pad 37 on the second supporting member 3. The rubber protective pad 37 is not in rigid contact with the box culvert 33 or the pipe segment 34, so it will not cause damage to the surface of the box culvert 33 or the pipe segment 34. Of course, the arc-shaped supporting surface of the first supporting member 2 can also be provided with a rubber protective pad.

[0047] As shown in Figure 1 and Figure 2 A folding arm crane 6 for hoisting objects is detachably arranged on the vehicle frame 1 near the cab on the rear side. Figure 7 and Figure 8As shown, the folding arm crane 6 comprises a mounting frame 32, a fixed support leg 21 assembled on the mounting frame 32, a hydraulic support leg 19 movably assembled on the fixed support leg 21 in a horizontal direction, an inner arm assembly 26, an outer arm assembly 29, a central rotary body 23 rotatably assembled on the mounting frame 32, a rotary support 22 mounted on the central rotary body 23, and a rotating table assembly 24 mounted on the rotary support 22. The mounting frame 32 is located above the vehicle frame 1, and a plurality of fastening screws 15 are arranged between the mounting frame 32 and the vehicle frame 1, both ends of the fastening screw 15 are sleeved with a pad plate 16 for pressing the mounting frame 32 and the vehicle frame 1, and both ends of the fastening screw 15 are threadedly connected with a fastening nut 17 for pressing the corresponding pad plate 16. The central rotary body 23 is rotated by a hydraulic rotary device 31. One end of the inner arm assembly 26 is hingedly connected with the top end of the rotating table assembly 24, and a first luffing oil cylinder 25 is hingedly connected between the inner arm assembly 26 and the rotating table assembly 24, and under the drive of the first luffing oil cylinder 25, the inner arm assembly 26 can be flipped up and down about the hinged position with the rotating table assembly 24. The other end of the inner arm assembly 26 is hingedly connected with the outer arm assembly 29, and a second luffing oil cylinder 27 is further hingedly connected between the inner arm assembly 26 and the outer arm assembly 29, and under the drive of the second luffing oil cylinder 27, the outer arm assembly 29 can be rotated relative to the inner arm assembly 26. The outer arm assembly 29 has a telescopic lifting arm which is driven by a telescopic oil cylinder 28. A valve frame 30 is further arranged on the mounting frame 32, and a plurality of valves corresponding to the above-mentioned oil cylinders are arranged on the valve frame 30. The hydraulic support leg 19 is located below the vehicle frame 1, and is realized by a support oil cylinder 18 to realize up and down telescopic, and is realized by a horizontal oil cylinder 20 to realize relative to the fixed support leg 21 horizontal telescopic. The structure of the folding arm crane 6 is relatively conventional, and only a brief description is made here.

[0048] The tunnel component transport vehicle with the folding arm crane transports the box culvert 33 or the segment 34, and when the segment 34 is transported, as shown in the figure, Figure 2 The first support 2 and the second support 3 support the segment 34 at the same time; when the box culvert 33 is transported, as shown in the figure, Figure 1 After the tunnel component transport vehicle with the folding arm crane is transported to the position, the four second supports 3 are driven to retreat by the linear driving member 5, and are separated from the support of the segment 34 or the box culvert 33, and then the box culvert 33 or the segment 34 is rotated by 90 degrees through the jacking of the rotary driving member 4; at the same time, the folding arm crane 6 can meet the cleaning and moving of the pipeline and sundries in the tunnel, and other operation vehicles are not needed to enter, so that the time-consuming problem of vehicle avoidance is avoided, and the construction efficiency of the tunnel is improved.

[0049] The embodiment 2 of the tunnel component transport vehicle with the folding arm crane provided by the utility model:

[0050] The difference between the embodiment 1 and the embodiment 2 is mainly that:

[0051] In the embodiment 1, the rotary driving member adopts the form of an oil cylinder, and the rotation of the first support is realized by linear telescopic.

[0052] In the embodiment, the rotary driving member is in the form of a motor, at this time, a transmission shaft is arranged at the bottom of the first support member, the transmission shaft is assembled with the frame through a bearing, and a gear set transmission structure, or a belt pulley transmission structure, or a chain wheel and chain transmission structure is arranged between the motor and the transmission shaft, so that the rotation of the first support member can be realized.

[0053] The embodiment 3 of the tunnel component transport vehicle with the folding arm crane provided by the utility model mainly differs from the embodiment 1 in that:

[0054] The difference between the embodiment 1 and the embodiment 3 is mainly that:

[0055] In the embodiment 1, the first support member is provided with an arc-shaped support surface.

[0056] In the embodiment, the first support member is provided with a V-shaped support surface.

[0057] In the description of the present specification, the meaning of "a plurality of" is at least two, for example, two, three or more, etc., unless otherwise specifically limited.

[0058] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tunnel component transport vehicle with a built-in folding arm crane, comprising a frame, characterized in that, The frame is rotatably equipped with a first support member for supporting the box culvert or tunnel segments, and the frame is equipped with a rotary drive member for driving the first support member to rotate 90°; the frame is provided with second support members on both sides of the first support member for supporting the box culvert or tunnel segments, and the second support members are movably assembled on the frame along the length direction of the frame; the frame is also provided with a folding arm crane for lifting objects.

2. The tunnel component transport vehicle with a built-in folding arm crane according to claim 1, characterized in that, The frame has a downwardly recessed groove, with the first support member located inside the groove and the second support member located outside the groove.

3. A tunnel component transport vehicle with a built-in folding arm crane according to claim 1, characterized in that, The first support member has an arc-shaped support surface that is adapted to the bottom shape of the box culvert or the shape of the tunnel segment, and the second support member has a support slope.

4. A tunnel component transport vehicle with a built-in folding arm crane according to claim 3, characterized in that, A rubber protective pad is installed on the inclined support surface.

5. A tunnel component transport vehicle with a built-in folding arm crane according to claim 1, characterized in that, The rotary drive is located below the first support, and a rotary bearing is connected to the lower side of the first support. A hinge seat is also connected to the first support. The rotary drive has a drive end that can move linearly, which is hinged to the hinge seat. The fixed end of the rotary drive is hinged to the vehicle frame.

6. A tunnel component transport vehicle with a built-in folding arm crane according to claim 5, characterized in that, Two hinge seats are provided and are arranged at intervals in the circumferential direction of the first support member; the driving end of the rotary drive member is detachably connected to the corresponding hinge seat by a pin.

7. A tunnel component transport vehicle with a built-in folding arm crane according to any one of claims 1-6, characterized in that, The frame is provided with linear drive members and sliding guide seats that correspond one-to-one with the second support members. The second support members and the sliding guide seats are guided and slidably engaged in the length direction of the frame. The drive end of the linear drive member is connected to the second support member.

8. A tunnel component transport vehicle with a built-in folding arm crane according to claim 7, characterized in that, The sliding guide seat is provided with a guide groove extending along the length of the frame, and the second support member is provided with a guide shaft that passes through the guide groove and slides in cooperation with the guide groove.

9. A tunnel component transport vehicle with a built-in folding arm crane according to any one of claims 1-6, characterized in that, The folding boom crane is detachably connected to the vehicle frame.

10. A tunnel component transport vehicle with a built-in folding arm crane according to claim 9, characterized in that, The articulated boom crane includes a mounting frame, fixed outriggers mounted on the mounting frame, hydraulic outriggers mounted on the fixed outriggers in a horizontal direction, an inner boom assembly, an outer boom assembly, a central slewing body rotatably mounted on the mounting frame, a slewing support mounted on the central slewing body, and a turntable assembly mounted on the slewing support. A first luffing cylinder is hinged between the turntable assembly and the inner boom assembly, and a second luffing cylinder is hinged between the inner boom assembly and the outer boom assembly. A telescopic cylinder is provided on the outer boom assembly. The mounting frame is located above the vehicle frame, and multiple fastening screws pass through the mounting frame and the vehicle frame. Each end of the fastening screw is fitted with a pad for pressing the mounting frame and the vehicle frame. Each end of the fastening screw is threaded with a fastening nut, which presses the corresponding pad.

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