Beam transporting vehicle shared by single line and double lines

Abstract

The utility model belongs to the technical field of girder transporting equipment, and discloses a girder transporting vehicle shared by a single line and double lines, which can be matched with various types of bridge erecting machines for use and has multiple purposes, and two rows of double-line positions and two rows of single-line positions positioned on the inner sides of the two rows of double-line positions are arranged on two sides of a frame along a first direction. The beam transporting vehicle shared by the single line and the double lines has a single-line mode and a double-line mode, in the single-line mode, the multiple walking devices are installed at the multiple single-line positions in a one-to-one correspondence mode so as to transport single-line beams, and in the double-line mode, the multiple walking devices are installed at the multiple double-line positions in a one-to-one correspondence mode so as to transport double-line beams. The beam transporting vehicle shared by the single line and the double lines has a single-line mode and a double-line mode, transportation of single-line beams and double-line beams can be met, universality is high, vehicle use is saved, and construction cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to beam conveying equipment technical field especially, it relates to a single double line shared beam conveying vehicle. BACKGROUND

[0002] The beam conveying vehicle is also called bridge conveying vehicle or beam carrying vehicle, which is a heavy vehicle specially used for conveying large prefabricated bridge components (such as beams, plates, etc.), and is widely used in the fields of highway, railway construction and urban infrastructure construction.

[0003] With the rapid development of China's high-speed rail industry, the conversion between original high-speed rail trunk lines, the conversion connection between station lines and high-speed rail trunk lines and existing general rail lines is upgraded from the original T beam to single-line beam, and the beam has single-line and double-line distinction, but most of the existing beam conveying vehicles can only meet the single-beam conveying construction, that is, single-line beam conveying vehicles can only convey single-line beams, and double-line beam conveying vehicles can only convey double-line beams, the application range is relatively narrow, and it is impossible to simultaneously meet the conveying of single-line and double-line beams, so two or more sets of different conveying vehicles need to be invested in the construction process, resulting in increased cost of equipment investment. SUMMARY

[0004] The utility model discloses a single double line shared beam conveying vehicle, can satisfy the transportation of single-line beam and double-line beam, and the universality is strong, saves the vehicle use, reduces the construction cost.

[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0006] A single double line shared beam conveying vehicle comprises:

[0007] A vehicle frame and multiple walking devices, the vehicle frame is provided with two double-line positions along a first direction and two single-line positions inside the double-line positions, the single double line shared beam conveying vehicle has a single-line mode and a double-line mode, in the single-line mode, multiple walking devices are sequentially installed in multiple single-line positions to transport single-line beams, in the double-line mode, multiple walking devices are sequentially installed in multiple double-line positions to transport double-line beams, and the first direction is the length direction of the vehicle frame.

[0008] Preferably, the vehicle frame comprises a main beam, and the single-line positions are arranged at the bottom of the main beam.

[0009] Preferably, the main beam comprises a driver end and a power end, the power end is provided with two groups of first positions X and a group of second positions Y, the driver end is provided with a group of third positions Z and a group of fourth positions M, the first positions X and the third positions Z are located on the side wall of the main beam, and the second positions Y and the fourth positions M are located at the bottom of the main beam.

[0010] The single-double line shared beam transport vehicle further comprises a jacking device, in the single line mode, the jacking device comprises two groups, which are respectively installed at the second position Y and the fourth position M, in the double line mode, the jacking device comprises three groups, two groups of the jacking device are respectively installed at two groups of the first positions X, and the other group of the jacking device is installed at the third position Z.

[0011] As preferred, the vehicle frame further comprises a plurality of connecting frames located at the two side walls of the main beam, and a plurality of the double line positions are correspondingly arranged at the bottom of the connecting frames.

[0012] As preferred, two groups of the single line positions are correspondingly arranged, and the two corresponding single line positions are arranged in staggered mode.

[0013] As preferred, the vehicle frame further comprises a cab, a first connecting seat is installed at the side wall of one end of the vehicle frame, and a second connecting seat is installed at the front side of one end of the vehicle frame, in the single line mode, the cab is installed at the first connecting seat, and in the double line mode, the cab is installed at the second connecting seat.

[0014] As preferred, the jacking device comprises two supporting legs which are detachably connected to the vehicle frame and a jacking piece which is installed at the supporting leg.

[0015] As preferred, the single-double line shared beam transport vehicle further comprises a beam carrying device, the beam carrying device comprises a driving assembly, a first sliding plate and a second sliding plate, the first sliding plate and the second sliding plate are slidably installed at the top of the vehicle frame along the first direction, and the two ends of the single line beam or the two ends of the double line beam are respectively placed on the first sliding plate and the second sliding plate, the driving assembly is used for driving the first sliding plate to slide, so as to drive the single line beam or the double line beam to be transported into or out of the vehicle frame.

[0016] As preferred, the driving assembly comprises a chain, a sprocket and a driving piece, the chain is arranged at the top of the vehicle frame along the first direction, the sprocket is engaged with the chain, and the driving piece is connected to the first sliding plate and used for driving the sprocket to rotate along the chain, so as to drive the first sliding plate to slide.

[0017] As preferred, a plurality of the walking devices are arranged in groups, and each group of the walking devices is connected through a connecting rod mechanism, the connecting rod mechanism comprises a steering oil cylinder and a connecting rod, the connecting rod is rotationally connected between adjacent two walking devices, and the steering oil cylinder drives one of the walking devices to rotate, so that the walking devices in the same group are synchronously rotated through the connecting rod.

[0018] The utility model discloses the beneficial effects of:

[0019] 1. This utility model can be used in conjunction with various types of bridge erecting machines, making it a multi-purpose machine;

[0020] 2. This utility model can switch between single-line mode and double-line mode by installing multiple walking devices one-to-one at multiple single-line positions or multiple double-line positions, thus achieving high versatility.

[0021] 3. This utility model can quickly switch between single-line and double-line modes by setting up a lifting device to raise the vehicle frame and using support columns to stably support the vehicle frame at a preset height, without the need for a large-tonnage crane, and is simple and convenient to operate;

[0022] 4. This utility model, by setting the positions of two rows of single lines in a staggered manner, can balance the local load on the top cover plate of the frame and improve safety;

[0023] 5. This utility model reduces the overall vehicle height by setting a first sliding plate and a second sliding plate to drive the beam to be transported in and out, thus meeting the requirements for tunnel passage;

[0024] 6. This utility model achieves overall steering by setting a linkage mechanism, reducing potential points of failure during operation and facilitating later maintenance. In addition, by setting a self-lubricating joint bearing inside the linkage mechanism, the number of disassembly and maintenance points is reduced, saving time on disassembly and conversion and later timed maintenance. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of a beam transport vehicle that can be used for both single and double tracks, provided in an embodiment of this utility model;

[0026] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 3 This is a top view of the vehicle frame provided in this embodiment of the utility model;

[0028] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0029] Figure 5 This is a schematic diagram of the frame structure provided in an embodiment of the present utility model;

[0030] Figure 6 This is a bottom view of a beam transport vehicle in single-line mode with both single and double lines provided in this embodiment of the utility model;

[0031] Figure 7 This is a top view of a beam transport vehicle in a dual-track mode that uses both single and dual tracks, as provided in an embodiment of this utility model.

[0032] Figure 8is a top view of part structure of the walking device provided by the embodiment of the utility model;

[0033] Figure 9 is a side view of part structure of the walking device provided by the embodiment of the utility model;

[0034] Figure 10 is Figure 9 is the local enlarged view of C in the middle;

[0035] Figure 11 is the structure schematic view of the power end provided by the embodiment of the utility model;

[0036] Figure 12 is the structure schematic view of the driver end provided by the embodiment of the utility model;

[0037] Figure 13 is the side view of the beam transport vehicle shared by single line and double line provided by the embodiment of the utility model;

[0038] Figure 14 is Figure 13 is the local enlarged view of D in the middle;

[0039] Figure 15 is the front view of the beam transport vehicle shared by single line and double line provided by the embodiment of the utility model;

[0040] Figure 16 is the structure schematic view of the beam carrying device provided by the embodiment of the utility model;

[0041] Figure 17 is the structure schematic view of the first sliding plate provided by the embodiment of the utility model;

[0042] Figure 18 is the structure schematic view of the second sliding plate provided by the embodiment of the utility model;

[0043] Figure 19 is the schematic diagram of the single-double line switching process provided by the embodiment of the utility model Figure 1 ;

[0044] Figure 20 is the schematic diagram of the single-double line switching process provided by the embodiment of the utility model Figure 2 .

[0045] in the drawing:

[0046] 1, frame;11, subsection;12, opposite pull screw;13, connecting piece;131, mounting hole;14, single line position;15, double line position;16, connecting frame;17, first connecting seat;18, second connecting seat;19, sliding rail;

[0047] 21, wheel set; 211, axle shaft; 212, tire; 22, suspension assembly; 221, chassis; 222, swivel plate; 2221, steering plate; 223, suspension member; 224, hinged member; 231, steering cylinder; 232, connecting rod;

[0048] 3, jacking device; 31, support leg; 32, jacking member;

[0049] 4, cab; 401, support member;

[0050] 5, riding beam device; 511, chain; 512, driving member; 513, connecting rod; 52, first sliding plate; 521, first groove; 53, second sliding plate; 531, second groove;

[0051] 6, support column;

[0052] X, first position; Y, second position; Z, third position; M, fourth position. DETAILED DESCRIPTION

[0053] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and are not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0054] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0055] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0056] In the description of the present embodiment, the terms "upper", "lower", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0057] The present embodiment provides a single-double line shared beam transport vehicle, which has a single line mode and a double line mode, transports a single line beam in the single line mode, and transports a double line beam in the double line mode. The present embodiment can simultaneously meet the transportation of single line beams and double line beams, has strong versatility, saves vehicle use, and reduces construction cost.

[0058] It should be noted that the present embodiment can be used in cooperation with various forms of bridge erection machines, for example, cooperating with an 800t single-double line bridge erection machine to erect 800t and below double line beams and 500t and below single line beams; cooperating with a 900t bridge erection machine and a 1000t bridge erection machine to perform double line 800t and below box beam construction; and cooperating with a bridge erection machine single line beam erection construction. The present embodiment is used for transporting prestressed reinforced concrete beam pieces of 32m and below span of high-speed railway box beams. One set of equipment simultaneously meets the erection of high-speed railway single and double line box beams and beam pieces of intercity railways (such as 35m urban railway beams).

[0059] Please refer to Figures 1-18 A single-double line shared beam transport vehicle includes a vehicle frame 1, which is used to load a single line beam or a double line beam.

[0060] The vehicle frame 1 provided by the present embodiment is a segmented assembly structure, which is adapted to different specifications of single line beams or double line beams.

[0061] For example, please refer to Figures 3-5 The present embodiment provides a segmented assembly structure of a vehicle frame 1, which is formed by a plurality of segments 11 connected end to end. Please continue to refer to Figure 4 The adjacent two segments 11 are connected through a plurality of opposite pulling screws 12.

[0062] Specifically, please continue to refer to Figure 5 The adjacent two segments 11 are connected through two connecting pieces 13 at two ends close to each other, and the two connecting pieces 13 are connected through a plurality of opposite pulling screws 12.

[0063] Please continue to refer to Figure 5The front end and the rear end of each segment 11 are provided with mounting slots, and the connecting piece 13 is embedded in the mounting slots, and the connecting piece 13 is circumferentially welded to the slot wall of the corresponding mounting slot. Further preferably, a plurality of mounting holes 131 are arranged on the connecting piece 13, the mounting holes 131 are arranged in the thickness direction of the connecting piece 13, and a plurality of tension rods 12 pass through the mounting holes 131 on the connecting piece 13 of one of the two adjacent segments 11, and are screwed to the corresponding mounting holes 131 on the connecting piece 13 of the other segment 11, thereby completing the assembly between the two adjacent segments 11.

[0064] In the embodiment, the plurality of mounting holes 131 on the connecting piece 13 are arranged in two rows, which can improve the connection strength between the segments 11. In other feasible embodiments, the mounting holes 131 on the connecting piece 13 can also be arranged in other ways, which are not limited here.

[0065] Please refer to Figure 2 The embodiment also includes a plurality of walking devices, which are installed on the frame 1 and are used to realize the movement of the frame 1. The single-double line shared beam transport vehicle has a single line mode and a double line mode, and the walking devices are installed at different positions of the frame 1 in the single line mode and the double line mode.

[0066] Specifically, please refer to Figure 3 and Figure 6 The frame 1 is provided with two rows of single line positions 14 in the first direction, and each row is provided with a plurality of single line positions 14. In the single line mode, the plurality of walking devices are arranged in two rows and are installed on the two rows of single line positions 14. It should be noted that the first direction is the length direction of the frame 1, and the single line positions 14 are arranged at the bottom of the frame 1.

[0067] Preferably, the frame 1 includes a main beam, and the single line positions 14 are arranged at the bottom of the main beam. Further preferably, a flange is arranged on the single line position 14, and the flange of the walking device is connected to the main beam.

[0068] Preferably, the two rows of single line positions 14 are arranged in one-to-one correspondence on the main beam, the distance between the adjacent two single line positions 14 in the same row is the same, and the distance between the plurality of single line positions 14 and the symmetry axis of the main beam parallel to the first direction is equal. After the plurality of walking devices are installed on the plurality of single line positions 14, the local load of the single line beam on the top cover plate of the main beam during the beam transport process is balanced, and the stability of the construction support is improved.

[0069] Further, in the single line mode of the single-double line shared beam transport vehicle provided in the embodiment, the edge of the single line beam extends out of the frame 1, please refer to Figure 6At this time, the walking device is installed at the two rows of single-line positions 14 at the bottom of the main beam, that is, the orthographic projection of the single-line beam falls on the outside of the main beam, resulting in that the stress of the single-line beam is concentrated on the top cover plate of the main beam, and the local load of the top cover plate of the main beam is too high. Therefore, referring to Figure 6 and Figure 7 , the two rows of single-line positions 14 at the bottom of the main beam are staggered, that is, after the plurality of walking devices are installed at the plurality of single-line positions 14, the two walking devices on the two sides are staggered to balance the local load of the top cover plate of the main beam, ensure that the local load of the top cover plate of the main beam is within a safe range during the transportation of the single-line beam, avoid overload, and ensure safety.

[0070] The distance between the axes of the two single-line positions 14 is 150mm-250mm, preferably, the distance between the axes of the two single-line positions 14 is 200mm, thereby achieving the best effect of balancing the local load of the top cover plate of the main beam.

[0071] Specifically, referring to Figure 6 , the frame 1 is further provided with two rows of double-line positions 15 on the two sides in the first direction, and each row is provided with a plurality of double-line positions 15, referring to Figure 7 , in the double-line mode, the plurality of walking devices are installed at the two rows of double-line positions 15 in a one-to-one correspondence by setting the plurality of double-line positions 15. It should be noted that the two rows of single-line positions 14 are located on the inside of the two rows of double-line positions 15.

[0072] Optionally, referring to Figure 6 , the main beam is provided with a plurality of connecting frames 16 on the two side walls in the first direction, the plurality of connecting frames 16 on the same side are provided in the first direction, the connecting frame 16 extends away from the frame 1, and the two rows of double-line positions 15 are installed at the bottom of the two connecting frames 16 in a one-to-one correspondence. Further preferably, a flange is installed on the double-line position 15, and the flange of the walking device is connected to the connecting frame 16.

[0073] Preferably, the two rows of double-line positions 15 are provided in a one-to-one correspondence, the distance between the two adjacent double-line positions 15 in the same row is the same, and the distance between the plurality of double-line positions 15 and the symmetry axis of the main beam parallel to the first direction is equal. After the plurality of walking devices are installed at the plurality of double-line positions 15, the local load of the top cover plate of the main beam by the double-line beam during the beam transportation is balanced, and the stability of the construction support is improved.

[0074] The single-double line shared beam transport vehicle provided in the embodiment corresponds to the single line mode, and the plurality of walking devices are installed in the plurality of single line positions 14 to transport the single line beam. Since the width of the double line beam is much larger than the width of the single line beam, the single-double line shared beam transport vehicle provided in the embodiment corresponds to the double line mode, and the plurality of walking devices are installed in the plurality of double line positions 15 to transport the double line beam, so as to ensure that the frame 1 can stably support the double line beam.

[0075] Please refer to Figure 2 The single-double line shared beam transport vehicle further comprises a cab 4 installed on the frame 1, and the operator operates in the cab 4.

[0076] Since the widths of the single line beam and the double line beam are different, the overall structure occupies different spaces during transportation. In order to ensure the driving field of view, the installation positions of the cab 4 in the single line mode and the double line mode are different, that is, the position of the cab 4 in the width direction of the frame 1 is adjusted.

[0077] For example, please refer to Figure 1 and Figure 2 The side wall of the end of the frame 1 in the first direction is provided with a first connecting seat 17, and the front side of the end is provided with a second connecting seat 18. Preferably, the second connecting seat 18 is installed on the connecting frame 16 of the end, and the first connecting seat 17 and the second connecting seat 18 are located at one end of the frame 1 in the first direction. In the single line mode, the cab 4 is installed on the first connecting seat 17, and in the double line mode, the cab 4 is installed on the second connecting seat 18, so as to achieve the purpose of adjusting the position of the cab 4 in the width direction of the frame 1. By installing the second connecting seat 18 on the front side of the first connecting seat 17, the installation of the cab 4 in the single line mode can also be avoided by the connecting frame 16.

[0078] Preferably, please refer to 2, the back of the cab 4 is provided with a support 401, and the end of the support 401 is rotatably installed on the first connecting seat 17 or the second connecting seat 18 through a pin shaft, and the axis of the pin shaft is vertically arranged. Through the above setting, the single line beam or the double line beam is transported into or out of the frame 1 from one end of the frame 1, and the cab 4 close to the end is rotated to avoid the single line beam or the double line beam. In the single line mode, the single line beam is transported into or out of the frame 1 from one end of the frame 1, and the connecting frame 16 close to the cab 4 is disassembled, so that the cab 4 at the end can be normally rotated to avoid it.

[0079] Please refer to Figure 1 and Figure 6 The two ends of the main beam in the first direction are the driver end and the power end respectively. Correspondingly, the embodiment comprises two cabs 4, and the two cabs 4 are located at the driver end and the power end respectively. When the frame 1 advances in different directions, the operator is located in the corresponding cab 4.

[0080] Please refer to Figure 6 and Figure 8 , the walking device comprises a suspension assembly 22 mounted on the frame 1 and a wheel set 21 mounted on the suspension assembly, a plurality of walking devices are arranged at intervals along the first direction, in single-line mode, one end of each of the plurality of suspension assemblies 22 is correspondingly mounted on a plurality of single-line positions 14 to transport a single-line beam, and in double-line mode, one end of each of the plurality of suspension assemblies 22 is correspondingly mounted on a plurality of double-line positions 15 to transport a double-line beam.

[0081] Specifically, please refer to Figure 9 and Figure 10 , the suspension assembly 22 comprises a chassis 221 and a rotating disc 222, a flange plate is arranged on the top of the chassis 221, the chassis 221 is connected to the single-line position 14 or the double-line position 15 through the flange plate, the rotating disc 222 is rotatably mounted on the bottom of the chassis 221, the rotation axis of the rotating disc 222 is vertical, and the wheel set 21 is mounted on the rotating disc 222. Through the above arrangement, the rotating disc 222 is driven to rotate along its rotation axis, so as to realize the rotation of the corresponding wheel set 21, and further realize the steering of the frame 1.

[0082] Further, the suspension assembly 22 further comprises a suspension piece 223 and a hinged piece 224. One end of the suspension piece 223 is mounted on the bottom of the rotating disc 222, one end of the hinged piece 224 is hingedly connected to the other end of the suspension piece 223 through a pin shaft, and the other end of the hinged piece 224 is connected to the corresponding wheel set 21. Preferably, the axis of the pin shaft is horizontal, that is, the rotation axis of the hinged piece 224 is horizontally arranged.

[0083] Still further, the walking device further comprises a rotation driving piece, the rotation driving piece is mounted on the suspension assembly 22, and the rotation driving piece is configured to drive the hinged piece 224 to rotate along its rotation axis. Preferably, the rotation driving piece is mounted on the suspension piece 223 of the suspension assembly 22, and the driving end of the rotation driving piece is connected to the hinged piece 224, or the rotation driving piece is mounted on the hinged piece 224 of the suspension assembly 22, and the driving end of the rotation driving piece is connected to the suspension piece 223, which is not specifically limited here as long as the rotation of the hinged piece 224 along the axis of the pin shaft can be realized.

[0084] By the above arrangement, on the one hand, the rotation recovery and rotation lowering of the wheel set 21 can be realized to adapt to the switching of the single-line mode and the double-line mode. For example, in the embodiment, the height of the double-line position 15 is higher than that of the single-line position 14. When the flange of the chassis 221 is connected to the single-line position 14, the rotation driving member drives the hinged member 224 to rotate along the axis of the pin shaft, thereby shortening the distance between the wheel set 21 and the chassis 221, that is, shortening the height of the walking device to adapt to the distance between the single-line position 14 and the ground. When the flange of the chassis 221 is connected to the double-line position 15, the rotation driving member drives the hinged member 224 to rotate reversely along the axis of the pin shaft, thereby lengthening the distance between the wheel set 21 and the chassis 221, that is, lengthening the height of the walking device to adapt to the distance between the double-line position 15 and the ground. On the other hand, when walking on a slope or passing through a bumpy road, the rotation driving member can automatically provide compensation adjustment, automatically adapt to the road conditions, and automatically adjust the load on the ground to be uniform and consistent, thereby avoiding deformation of the vehicle frame 1.

[0085] Preferably, the distance adjustment range between the wheel set 21 and the chassis 221 is ±300 mm.

[0086] Optionally, referring to Figures 9-14 , the wheel set 21 comprises a connecting shaft 211 and tires 212 rotatably mounted on the connecting shaft 211, and the connecting shaft 211 is mounted on the corresponding suspension assembly 22. For example, the wheel set 21 comprises four tires 212 coaxially arranged and rotatably mounted on the connecting shaft 211, and the other end of the hinged member 224 is connected to the middle region of the connecting shaft 211. Among them, two tires 212 are mounted on one side of the hinged member 224, and the other two tires 212 are mounted on the other side of the hinged member 224, so as to improve the stability of the wheel set 21 and prevent it from falling during transportation. In other feasible embodiments, each wheel set 21 can also be provided with a different number of tires 212, which is not limited here.

[0087] Referring to Figure 8 , the plurality of walking devices are arranged in groups, and each group of walking devices is connected by a connecting rod mechanism. By arranging the connecting rod mechanism, the overall steering modes such as straight driving, eight-character steering, and small-angle oblique driving can be realized. The connecting rod mechanism comprises a steering oil cylinder 231 and a plurality of connecting rods 232. The plurality of connecting rods 232 are respectively hinged to the rotating discs 222 of the suspension assemblies 22 of the adjacent two walking devices. The steering oil cylinder 231 drives the rotating disc 222 of one of the suspension assemblies 22, thereby driving the plurality of rotating discs 222 and the wheel sets 21 thereon to synchronously steer. By arranging the connecting rod mechanism to realize synchronous rotation, the electric control parts for driving steering are reduced, thereby reducing potential failure points during operation, reducing disassembly and maintenance points, and facilitating later maintenance.

[0088] The steering plate 2221 is arranged on the side of the rotating disc 222 away from the chassis 221, and the two ends of the connecting rod 232 are hingedly connected to the two adjacent steering plates 2221, and the steering oil cylinder 231 is drivingly connected to one of the steering plates 2221, and the steering oil cylinder 231 is extended or retracted to push the one steering plate 2221 and the rotating disc 222 connected thereto to rotate, thereby driving the corresponding walking device to steer, and in the process, the one steering plate 2221 drives the connecting rod 232 hingedly connected thereto to move, and the connecting rod 232 drives the adjacent walking device to rotate, thereby realizing the synchronous rotation of the walking devices in the same group.

[0089] Preferably, the two ends of the connecting rod 232 are hingedly connected to the two adjacent steering plates 2221 through self-lubricating joint bearings, thereby saving the cost of later disassembly and maintenance.

[0090] The walking devices in the embodiment are divided into four groups, forming four steering areas, and the four steering areas are arranged in a matrix manner, one connecting rod mechanism is arranged in each steering area, and the plurality of walking devices in each steering area are synchronously steered by one connecting rod mechanism.

[0091] Referring to Figure 1 and Figure 15 , the embodiment also includes jacking devices 3, and the jacking devices 3 are mounted on the vehicle frame 1 and can be lifted relative to the vehicle frame 1 to lift the overall structure and assist in switching between the single-line mode and the double-line mode.

[0092] Referring to Figure 6 and Figure 12 , the jacking device 3 includes two support legs 31 detachably connected to the vehicle frame 1, and a jacking member 32 is mounted on each support leg 31, and the two support legs 31 are distributed along a second direction to balance the load in the lifting process, the jacking member 32 is selected from a jack, and the second direction is the width direction of the vehicle frame 1. Preferably, the opposite side walls of the support leg 31 are each provided with a connecting hole, and a flange is arranged at the top of the support leg 31.

[0093] During the working process of the jacking member 32, a steel plate or a wooden pad is placed under the supporting surface of the jacking member 32 to increase the contact area and protect the lower disc of the jacking member 32.

[0094] Referring to Figure 3 , Figure 11 and Figure 12 , the power end of the main girder in the embodiment has two groups of first positions X and one group of second positions Y, the driver end has one group of third positions Z and one group of fourth positions M, the first positions X and the third positions Z are located on the side walls of the main girder, and the second positions Y and the fourth positions M are located on the bottom of the main girder.

[0095] In the single-line mode, the jacking device 3 includes two groups, which are installed at the second position Y and the fourth position M respectively. Specifically, the top of the support leg 31 of the two groups of jacking device is flange connected to the bottom of the main beam.

[0096] In the double-line mode, the jacking device 3 includes three groups, two of which are installed at the two groups of first position X, and the other is installed at the third position Z. The side wall of the support leg 31 of the three groups of jacking device is bolted to the side wall of the main beam through the connecting hole reserved thereon.

[0097] It should be noted that when switching from the double-line mode to the single-line mode, the jacking device 3 at the third position Z at the driver's end needs to be removed to avoid affecting the swing of the cab 4 at the driver's end.

[0098] In addition, in the double-line mode, if a double-line beam with a carrying specification of 32.6m, 800t is needed, the three groups of jacking device 3 work simultaneously to support and lift the frame 1; if a double-line beam with a carrying specification below 32.6m, 800t is needed, only the jacking device 3 at the first position X and the jacking device 3 at the third position Z work to support and lift the frame 1.

[0099] The single-double-line shared beam transport vehicle further includes a beam carrying device 5 installed on the frame 1, which is used to cooperate with the bridge erecting machine to assist in transporting the single-line beam or the double-line beam into or out of the frame 1.

[0100] Please refer to Figure 2 , Figure 13 , Figure 14 and Figure 16 , the beam carrying device 5 includes a driving assembly, a first sliding plate 52 and a second sliding plate 53, which are slidingly installed on the top of the frame 1 along the first direction. During transportation, the two ends of the single-line beam or the two ends of the double-line beam are respectively placed on the first sliding plate 52 and the second sliding plate 53. The driving assembly drives the first sliding plate 52 to slide, thereby driving the single-line beam or the double-line beam to be transported into or out of the frame 1 along the length direction of the frame 1.

[0101] Preferably, the height of the first sliding plate 52 and the second sliding plate 53 is 0.2-0.3m. By setting the first sliding plate 52 and the second sliding plate 53, on the one hand, the convenience of transporting the single-line beam or the double-line beam into the frame 1 is improved, and it is ensured that the single-line beam or the double-line beam can be stably placed on the frame 1; on the other hand, by setting the first sliding plate 52 and the second sliding plate 53 with a relatively low height, the overall vehicle tunnel height is reduced.

[0102] Further, rubber pads are arranged on the top of the two ends of the first sliding plate 52 and the two ends of the second sliding plate 53 to buffer the pressure of the single-line beam or the double-line beam on the first sliding plate 52 and the second sliding plate 53.

[0103] Specifically, referring to Figure 2 and Figure 14 , the top of the main beam is provided with two slide rails 19, both of which are arranged along the first direction, and the two ends of the first slide plate 52 are respectively connected to the two slide rails 19, and the two ends of the second slide plate 53 are respectively connected to the two slide rails 19. There is no other device in the operating range of the girder carrying device 5 except the slide rails 19, which ensures smooth feeding of the girder.

[0104] Preferably, referring to Figure 17 and Figure 18 , the bottom of the first slide plate 52 is provided with two first grooves 521, and the two slide rails 19 are respectively clamped in the two first grooves 521 at the bottom of the first slide plate 52, and the outer wall of the slide rail 19 is circumferentially abutted to the groove wall of the first groove 521; similarly, the bottom of the second slide plate 53 is provided with two second grooves 531, and the two slide rails 19 are respectively clamped in the two second grooves 531 at the bottom of the second slide plate 53, and the outer wall of the slide rail 19 is circumferentially abutted to the groove wall of the second groove 531. Further preferably, the cross section of the slide rail 19 is rectangular.

[0105] For example, the two ends of the slide rail 19 respectively extend to the two ends of the main beam in the length direction, improving the utilization rate of the length space of the vehicle frame 1, so as to ensure that a single-line girder or a double-line girder can be loaded on the vehicle frame 1 as a whole, preventing the end of the single-line girder or the double-line girder from being suspended.

[0106] Preferably, the side of the first slide plate 52 and the second slide plate 53 close to each other is respectively provided with a buckle and a clamping groove, and the buckle is clamped in the clamping groove, thereby realizing the connection of the first slide plate 52 and the second slide plate 53. In the idle state, the first slide plate 52 is driven to slide, and the first slide plate 52 and the second slide plate 53 are connected through the buckle and the clamping groove structure, and the first slide plate 52 is further driven to slide, driving the second slide plate 53 to slide to the front end of the vehicle frame 1 together, so as to achieve the effect of storage and adjustment of the position of the second slide plate 53.

[0107] Referring to Figure 16 , the driving assembly includes a chain 511, a sprocket and a driving member 512. The chain 511 is arranged on the top of the vehicle frame 1 along the first direction, one end of the chain 511 is fixed to one end of the vehicle frame 1 in the first direction, the other end of the chain 511 is fixed to the other end of the vehicle frame 1 in the first direction, the sprocket is engaged with the chain 511, that is, the teeth of the sprocket are engaged with the tooth grooves of the chain 511, and the pitch of the chain 511 and the pitch of the sprocket are matched, and the driving member 512 is drivingly connected to the shaft center of the sprocket, and the driving member 512 is used to drive the sprocket to rotate. Through the above arrangement, since the position of the chain 511 is fixed, the teeth on the sprocket can be sequentially engaged with the tooth grooves on the chain 511 during the rotation of the sprocket, thereby realizing the rotation of the sprocket along the chain 511.

[0108] Preferably, fixed seats are installed at both ends of the frame 1 along its length, and the two ends of the chain 511 are fixed to the corresponding fixed seats to improve the installation strength of the chain 511 and ensure the tension of the chain 511.

[0109] Specifically, both the chain 511 and the fixing seat are located on the top of the main beam.

[0110] For example, this embodiment provides two chains 511, and correspondingly, two sprockets are provided to match each of the two chains 511. The two sprockets move synchronously, thereby improving transmission stability. Optionally, the rotation of the two sprockets is achieved by one driving member 512 or two driving members 512. When only one driving member 512 is provided, the two sprockets are connected by a rotating shaft, and the driving member 512 is driven and connected to the rotating shaft. When two driving members 512 are provided, the two driving members 512 are respectively driven and connected to the shafts of the two sprockets. The number of driving members 512 is not specifically limited here, as long as it can achieve synchronous movement of the sprockets.

[0111] Preferably, the drive component 512 is a variable frequency motor reducer, which has smooth operation and good synchronization.

[0112] The drive assembly also includes a housing, with the drive unit 512 and the sprocket both located inside the housing. Furthermore, a through groove is provided at the bottom of the housing, and the bottom of the sprocket extends out of the through groove to ensure that the sprocket can smoothly engage with the chain 511.

[0113] Preferably, the first slide plate 52 is connected to the housing, thereby connecting the drive assembly and the first slide plate 52, so that the drive assembly drives the first slide plate 52 to slide along the slide rail 19. For a further preferred embodiment, please refer to [link to preferred embodiment]. Figure 17 The first slide plate 52 is connected to the outer shell via a connecting rod 513. One end of the connecting rod 513 is connected to the outer shell, and the other end is connected to the first slide plate 52. Multiple connecting rods 513 can be provided to improve the connection stability between the outer shell and the first slide plate 52. The specific number depends on the actual situation and is not specifically limited here.

[0114] The process by which the beam-carrying device 5 transports a single-line beam or a double-line beam into or out of the frame 1 is as follows:

[0115] According to the specifications of the beam to be transported, the positions of the first sliding plate 52 and the second sliding plate 53 are adjusted, so that the distance between the center position a of the line connecting the first sliding plate 52 and the second sliding plate 53 and the center position b of the vehicle frame 1 satisfies a predetermined range, while ensuring that the distance between the first sliding plate 52 and the second sliding plate 53 is equal to the length of the beam to be transported, thereby ensuring uniform load distribution on the cover plate of the vehicle frame 1 and stable transportation of the beam to be transported. The bridge girder machine places one end of the single-line beam or the double-line beam on the first sliding plate 52 and stably places the other end of the single-line beam or the double-line beam on the second sliding plate 53. The driving assembly drives the first sliding plate 52 to slide along the sliding rail 19, thereby gradually transporting the single-line beam or the double-line beam into or out of the vehicle frame 1 following the first sliding plate 52. After completion, the first sliding plate 52 and the second sliding plate 53 are withdrawn to the corresponding positions according to the specifications of the next piece of beam to be transported.

[0116] Optionally, the distance between a and b can be 0, i.e., the distance between a and b is 0, and further optionally, it can also be 2800-3500mm, preferably 3000mm. For different length specifications of the beam to be transported, an applicable predetermined range is set to ensure more uniform load distribution and more stable beam transportation by the beam transport vehicle.

[0117] The embodiment sets the beam carrying device 5, which on the one hand facilitates the transportation of the single-line beam or the double-line beam into or out of the vehicle frame 1, and on the other hand, the driving member drives the first sliding plate 52 to slide along the chain 511, thereby reducing the overall vehicle height and greatly reducing the overall vehicle tunnel height.

[0118] It should be noted that before the single-line beam or the double-line beam is transported in or out, a stop block needs to be placed on the outer side of the two wheel sets 21 at one end of the first direction and on the outer side of the two wheel sets 21 at the other end of the first direction, thereby preventing the beam transport vehicle from moving during the process.

[0119] The embodiment also provides a single-double-line switching method for a beam transport vehicle, which is applied to the single-double-line shared beam transport vehicle described above and can realize quick switching between the single-line mode and the double-line mode of the single-double-line shared beam transport vehicle, and the operation is simple and convenient.

[0120] The single-double-line switching method for a beam transport vehicle provided by the embodiment includes the following steps:

[0121] S1, the output end of the jacking device 3 is extended to jack up the vehicle frame 1, and then the support column 6 is supported at the middle region of the bottom of the vehicle frame 1, and the height of the support column 6 is the same as the height of the vehicle frame 1 jacked up by the jacking device 3;

[0122] S2, the output end of the jacking device 3 is retracted, the support column 6 is placed below the output end of the jacking device 3, the output end of the jacking device 3 is again extended to jack up the vehicle frame 1, and the support column 6 is additionally installed on the support column 6 at the middle region of the bottom of the vehicle frame 1, and the step is repeated until the vehicle frame 1 is raised to a predetermined height.

[0123] S3, dismount the walking device connected to the single-line position 14 or the double-line position 15, and install it to the double-line position 15 or the single-line position 14 to be switched;

[0124] S4, retract the output end of the jacking device 3, remove the support column 6 below the output end of the jacking device 3, then extend the output end of the jacking device 3 again and support it on the support column 6, remove the support column 6 in the middle area of the bottom of the vehicle frame 1, and repeat the step until all the support columns 6 are removed, completing the single-double line switching.

[0125] Specifically, please refer to Figures 1-20 , the jacking device 3 lifts the vehicle frame 1 in multiple stages, ensuring the stable lifting of the vehicle frame 1 while reducing the working pressure of the jacking device 3.

[0126] First, place a steel plate or wooden pad under the support surface of the jacking member 32, and simultaneously work two groups of jacking devices 3 or three groups of jacking devices 3, extend the output end of the jacking member 32 of the jacking device 3 to lift the vehicle frame 1, and install a support column 6 in the middle area of the bottom of the vehicle frame 1, the height of the support column 6 is the same as the height of the jacking member 32 lifting the vehicle frame 1, ensuring the stability of the vehicle frame 1;

[0127] Further, retract the output end of the jacking member 32, and install a support column 6 below the jacking member 32 to stabilize the vehicle frame 1 at the first height, then extend the output end of the jacking member 32 to lift the vehicle frame 1, similarly, install a support column 6 again in the middle area of the bottom of the vehicle frame 1, and repeat the step until the vehicle frame 1 is lifted to the preset height. Optionally, the preset height of the vehicle frame 1 in this embodiment is 1000-2000mm.

[0128] In this embodiment, the overflow pressure output value of the jacking member 32 during the lifting of the vehicle frame 1 is 25Mpa, and the overflow pressure output value of the jacking member 32 during the transportation of the vehicle frame 1 into or out of the single-line beam or double-line beam is 21Mpa, and the maximum support force of the jacking member 32 is 65t.

[0129] After lifting the vehicle frame 1 to the preset height, rotate the driving member to drive the hinged member 224 to rotate along the axis of the pin shaft, shorten the distance between the tire 212 and the chassis 221 to the minimum, dismount the suspension assembly 22 installed at each single-line position 14 or double-line position 15, and install a plurality of suspension assemblies 22 one by one on a plurality of double-line positions 15 or a plurality of single-line positions 14 to be switched, and rotate the driving member to drive the hinged member 224 to reverse rotation along the axis of the pin shaft, and lengthen the distance between the tire 212 and the chassis 221.

[0130] Finally, the vehicle frame 1 below the jacking device 3 is lowered in multiple stages, specifically:

[0131] The output end of the jacking member 32 is retracted, the support column 6 below the output end of the jacking member 32 is removed, and then the output end of the jacking member 32 is extended again and supported on the support column 6. The support column 6 in the middle region of the bottom of the vehicle frame 1 is removed, and the step is repeated until all the support columns 6 are removed. The tire 212 can be stably supported on the ground, and the vehicle frame 1 is lowered, and the single-double line switching is completed.

[0132] It should be noted that the position switching of the jacking device is also included when the single-double line switching is performed, and specifically:

[0133] In the process of switching from the double-line mode to the single-line mode, the two groups of jacking devices 3 installed at the first position X of the power end and the group of jacking devices 3 installed at the third position Z of the driver end are removed, and the support legs 31 of the two groups of jacking devices 3 are connected to the second position Y of the power end and the fourth position M of the driver end through the flanges at the top, supporting and lifting the vehicle frame 1. Through the above setting, the swinging of the cab 4 located at the driver end is avoided.

[0134] In the process of switching from the single-line mode to the double-line mode, the group of jacking devices 3 installed at the second position Y of the power end and the group of jacking devices 3 installed at the fourth position M of the driver end are removed, and the support legs 31 of the two groups of jacking devices 3 are installed in the two groups of first position X of the power end through the connecting holes, and the support legs 31 of the other group of jacking devices 3 are installed in the third position Z of the driver end through the connecting holes.

[0135] In addition, if a double-line beam with a carrying specification of 32.6m, 800t is required in the double-line mode, the three groups of jacking devices 3 work simultaneously, and if a double-line beam with a carrying specification below 32.6m, 800t is required, only the group of jacking devices 3 located at the first position X and the group of jacking devices 3 located at the third position Z are controlled to work.

[0136] When the single-double line switching is performed, the position switching of the cab 4 is also included, and specifically:

[0137] In the single-line mode, the cab 4 is installed in the first connecting seat 17, and in the double-line mode, the cab 4 is installed in the second connecting seat 18. When switching from the double-line mode to the single-line mode, the reverse operation is performed.

[0138] Further, the transportation step of the beam is also included, and specifically:

[0139] According to the specification of the beam to be transported, the positions of the first sliding plate 52 and the second sliding plate 53 are adjusted so that the distance between the center position a of the line connecting the first sliding plate 52 and the second sliding plate 53 and the center position b of the vehicle frame 1 satisfies a preset range, the bridge girder machine places one end of the beam to be transported on the first sliding plate 52, and the other end of the beam to be transported is stably placed on the second sliding plate 53. The preset range of the distance between a and b can be 0, or 2800-3500mm, preferably 3000mm, and the suitable preset range is set for the beam to be transported with different length specifications, so as to ensure more uniform load distribution and more stable beam transporting vehicle.

[0140] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the utility model. Here, all the embodiments cannot be exhausted. Any modification, equivalent substitution and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A beam transport vehicle shared by single and double lines, characterized by, The utility model relates to a single-double line shared beam transport vehicle, comprising a frame and a plurality of walking devices, the frame is equipped with two rows of double line positions (15) along the first direction and two rows of single line positions (14) inside the two rows of double line positions (15), the single-double line shared beam transport vehicle has a single line mode and a double line mode, in the single line mode, a plurality of walking devices are sequentially installed in a plurality of single line positions (14) to transport a single line beam, in the double line mode, a plurality of walking devices are sequentially installed in a plurality of double line positions (15) to transport a double line beam, and the first direction is the length direction of the frame (1). The frame (1) comprises a main beam, and the single line position (14) is arranged at the bottom of the main beam.

2. The beam transport vehicle according to claim 1, wherein The main beam comprises a driver end and a power end, the power end is provided with two groups of first positions (X) and a group of second positions (Y), the driver end is provided with a group of third positions (Z) and a group of fourth positions (M), the first position (X) and the third position (Z) are located on the side wall of the main beam, and the second position (Y) and the fourth position (M) are located on the bottom of the main beam.

3. The single-double line shared beam transport vehicle according to claim 2, characterized in that, The single-double line shared beam transport vehicle further comprises a jacking device (3), in the single line mode, the jacking device (3) comprises two groups, which are respectively installed in the second position (Y) and the fourth position (M), in the double line mode, the jacking device (3) comprises three groups, two groups of the jacking device (3) are respectively installed in two groups of the first position (X), and the other group of the jacking device (3) is installed in the third position (Z). The frame (1) further comprises a plurality of connecting frames (16) located on the two side walls of the main beam, and a plurality of double line positions (15) are correspondingly arranged at the bottom of the plurality of connecting frames (16).

4. The single-double line shared beam transport vehicle according to claim 2, wherein, Two rows of single line positions (14) are correspondingly arranged, and two single line positions (14) corresponding to each other are arranged in a staggered manner.

5. The single-double line shared beam transport vehicle according to claim 1, characterized in that, Further comprising a cab (4), a first connecting seat (17) is arranged on the side wall of one end of the frame (1), a second connecting seat (18) is arranged on the front side of one end of the frame (1), in the single line mode, the cab (4) is installed on the first connecting seat (17), and in the double line mode, the cab (4) is installed on the second connecting seat (18).

6. The single-double line shared beam transport vehicle according to claim 1, characterized in that, The jacking device (3) comprises two supporting legs (31) which can be detachably connected to the frame (1) and a jacking piece (32) installed on the supporting leg (31).

7. The single-double line shared beam transport vehicle according to claim 3, characterized in that, The single-double line shared beam transport vehicle further comprises a beam carrying device (5), the beam carrying device (5) comprises a driving assembly, a first sliding plate (52) and a second sliding plate (53), the first sliding plate (52) and the second sliding plate (53) are slidably arranged on the top of the frame (1) along the first direction, and the two ends of the single line beam or the two ends of the double line beam are respectively placed on the first sliding plate (52) and the second sliding plate (53), and the driving assembly is used for driving the first sliding plate (52) to slide, so that the single line beam or the double line beam is transported into or out of the frame (1).

8. The single-double line shared beam transport vehicle according to claim 1, characterized in that, ​ 9. The single-double line shared beam transport vehicle according to claim 8, characterized in that, The driving assembly comprises a chain (511), a sprocket and a driving member (512), the chain (511) is arranged on the top of the frame (1) along the first direction, the sprocket is engaged with the chain (511), and the driving member (512) is connected to the first sliding plate (52) and used for driving the sprocket to rotate along the chain (511) so as to drive the first sliding plate (52) to slide.

10. The single-double track shared beam transport vehicle according to any one of claims 1-9, characterized in that, A plurality of the walking devices are arranged in groups, and each group of the walking devices is connected through a linkage mechanism, the linkage mechanism comprises a steering oil cylinder (231) and a connecting rod (232), the connecting rod (232) is rotatably connected between two adjacent walking devices, and the steering oil cylinder (231) drives one of the walking devices to rotate, so that the walking devices in the same group are synchronously rotated through the connecting rod (232).

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