Electric drive bridge beam truck

Abstract

This application relates to an electric drive axle beam transporter, comprising: a front beam transporter assembly, which includes a left front beam transporter and a right front beam transporter arranged side-by-side, detachably connected by a front crossbeam; both the left and right front beam transporters are equipped with an electric drive axle and a steering axle; and a rear beam transporter assembly, located behind the front beam transporter assembly, which includes a left rear beam transporter and a right rear beam transporter arranged side-by-side, detachably connected by a rear crossbeam; both the left and right rear beam transporters are equipped with an electric drive axle and a steering axle. The front and rear beam transporter assemblies of this application can form either a double-line or single-line beam transporter, improving the versatility of the beam transporter. The use of an electric drive axle enables modular design of the beam transporter, resulting in strong equipment adaptability, avoiding the impact of centralized transmission system failures on the overall vehicle operation, and improving the reliability of the beam transporter.

Description

Technical Field

[0001] This application relates to the field of beam transport vehicle technology, and in particular to an electric-driven bridge beam transport vehicle. Background Technology

[0002] As the scale of high-speed rail construction continues to expand, the terrain, geology, and environmental conditions faced are becoming increasingly complex. Often, a single high-speed rail line requires both double-track and single-track precast box girder erection. Current solutions typically employ two sets of equipment: one for erecting double-track box girders and another for erecting single-track box girders; these two sets cannot be used interchangeably. Meanwhile, the beam transport vehicle uses a diesel engine that is reduced in speed by a reducer to provide driving force for the whole vehicle. This not only results in high energy consumption, high noise, high cost, and serious pollution, but also makes it difficult to meet the efficiency and environmental protection requirements of engineering construction. Construction units have put forward new requirements for the equipment, demanding lower equipment costs and reduced operating costs. Summary of the Invention

[0003] This application provides an electric-drive bridge beam transport vehicle to solve the problems in related technologies where double-track box girders and single-track box girders cannot be used together, and where diesel engines are used to provide driving force for the whole vehicle after being reduced in speed by a reducer, resulting in high costs and serious pollution.

[0004] This application provides an electric-drive bridge girder transport vehicle, including: The front beam transport vehicle group includes a left front beam transport vehicle and a right front beam transport vehicle arranged side by side. The left front beam transport vehicle and the right front beam transport vehicle are detachably connected by a front crossbeam. Both the left front beam transport vehicle and the right front beam transport vehicle are equipped with an electric drive axle and a steering axle. The rear beam transport vehicle group is located behind the front beam transport vehicle group. The rear beam transport vehicle group includes a left rear beam transport vehicle and a right rear beam transport vehicle arranged side by side. The left rear beam transport vehicle and the right rear beam transport vehicle are detachably connected by a rear crossbeam. Both the left rear beam transport vehicle and the right rear beam transport vehicle are equipped with an electric drive axle and a steering axle.

[0005] In some embodiments: the front beam transport vehicle group further includes a double-line front beam-carrying trolley connected to the top of the left front beam transport vehicle and the right front beam transport vehicle, and the top of the left front beam transport vehicle and the right front beam transport vehicle is provided with a slide rail for slidingly connecting the double-line front beam-carrying trolley; The rear beam transport vehicle group also includes a double-line rear beam-carrying trolley connected to the top of the left and right rear beam transport vehicles. The top of the left and right rear beam transport vehicles is provided with a slide rail for slidingly connecting the double-line rear beam-carrying trolley.

[0006] In some embodiments: a single-line front beam-carrying trolley is slidably connected to the top of both the left front beam-carrying vehicle and the right front beam-carrying vehicle, and a single-line rear beam-carrying trolley is slidably connected to the top of both the left rear beam-carrying vehicle and the right rear beam-carrying vehicle.

[0007] In some embodiments, both the left front beam transport vehicle and the right front beam transport vehicle include a front vehicle body. A front driver's cab is rotatably connected to the front end of the front vehicle body, and a front vehicle power system for supplying power and / or hydraulic power to the electric drive axle and the steering axle is connected to the rear end of the front vehicle body. Both the left rear beam transport vehicle and the right rear beam transport vehicle include a rear vehicle body. A rear driver's cab is connected to the rear end of the rear vehicle body, and a rear vehicle power system for supplying power and / or hydraulic power to the electric drive axle and the steering axle is connected to the rear end of the rear vehicle body. The steering axle includes a front steering axle and a rear steering axle. There are multiple groups of electric drive axles, and the multiple groups of electric drive axles are located between the front steering axle and the rear steering axle. There are two groups of both the front steering axle and the rear steering axle.

[0008] In some embodiments, the electric drive axle includes an electric drive axle housing. A bridge housing for accommodating and installing a differential is provided in the middle of the electric drive axle housing. An electric drive assembly is connected to the bridge housing, and a clutch is provided between the electric drive assembly and the differential. The electric drive assembly includes an integrated housing connected to the bridge housing. A reduction gear and a drive motor that are传动连接 (transmitted and connected to each other) are provided in the integrated housing. The output end of the reduction gear is传动连接 (transmitted and connected) to the differential.

[0009] In some embodiments, equalizing oil cylinder mounting seats, lateral stop seats, and longitudinal stop seats are provided on the electric drive axle housing on both sides of the bridge housing. The equalizing oil cylinder mounting seats are provided on the top of the electric drive axle housing, and the lateral stop seats and the longitudinal stop seats are respectively provided on the front side and the rear side of the electric drive axle housing.

[0010] In some embodiments, the equalizing oil cylinder mounting seat includes front support ears and rear support ears that are symmetrically and spaced apart along the axis direction of the electric drive axle housing. Pin shaft holes are provided on both the front support ears and the rear support ears.

[0011] In some embodiments, the lateral stop seat includes an arc-shaped baffle and a reinforcing plate. The arc-shaped baffle is fixed on the electric drive axle housing and its convex arc surface faces the bridge housing, and the reinforcing plate is fixed on the electric drive axle housing and is connected to the concave arc surface of the arc-shaped baffle.

[0012] In some embodiments, longitudinal stop seats are provided on both the front side and the rear side of the electric drive axle housing. The cross-section of the longitudinal stop seat is a "匚"-shaped or "U"-shaped structure, and the longitudinal stop seat is fixedly connected to the electric drive axle housing to jointly form a vertical channel.

[0013] In some embodiments, there are multiple front cross beams and rear cross beams. Mounting plates are provided at both ends of the front cross beams and the rear cross beams, and multiple mounting holes are provided on the mounting plates. The left front beam transport vehicle and the right front beam transport vehicle are each provided with multiple front mounting seats that connect to the front crossbeam on the side that are close to each other, and the left rear beam transport vehicle and the right rear beam transport vehicle are each provided with multiple rear mounting seats that connect to the rear crossbeam on the side that are close to each other.

[0014] The beneficial effects of the technical solution provided in this application include: This application provides an electric drive axle beam transporter. The electric drive axle beam transporter of this application is equipped with a front beam transporter group, which includes a left front beam transporter and a right front beam transporter arranged side-by-side, detachably connected by a front crossbeam. Both the left and right front beam transporters are equipped with an electric drive axle and a steering axle. A rear beam transporter group is located behind the front beam transporter group. The rear beam transporter group includes a left rear beam transporter and a right rear beam transporter arranged side-by-side, detachably connected by a rear crossbeam. Both the left and right rear beam transporters are equipped with an electric drive axle and a steering axle.

[0015] Therefore, the front beam transport vehicle group of the electric drive bridge beam transport vehicle of this application consists of a left front beam transport vehicle and a right front beam transport vehicle arranged in parallel, and the rear beam transport vehicle group consists of a left rear beam transport vehicle and a right rear beam transport vehicle arranged in parallel. When it is necessary to transport double-track box girders, the left front beam transport vehicle and the right front beam transport vehicle are connected as one unit by the front crossbeam, and the left rear beam transport vehicle and the right rear beam transport vehicle are connected as one unit by the rear crossbeam to form a double-track beam transport vehicle for transporting double-track box girders.

[0016] When it is necessary to transport single-line box girders, the front crossbeam between the left front girder transport vehicle and the right front girder transport vehicle is removed, and the rear crossbeam between the left rear girder transport vehicle and the right rear girder transport vehicle is removed. Then, the left front girder transport vehicle and the left rear girder transport vehicle can be combined to form a single-line girder transport vehicle for transporting single-line box girders, and the right front girder transport vehicle and the right rear girder transport vehicle can be combined to form a single-line girder transport vehicle for transporting single-line box girders.

[0017] Furthermore, the left front beam transporter, right front beam transporter, left rear beam transporter, and right rear beam transporter of this application all use electric drive axles to drive the beam transporter. The power of each electric drive axle is independent of each other. The number of electric drive axles that can be configured on the beam transporter according to transportation needs can enable the beam transporter to be modularly designed, with strong equipment adaptability, avoiding the impact of centralized transmission system failure on the operation of the whole vehicle, and improving the reliability of the beam transporter. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a top view of the structure of the electric-drive bridge girder transport vehicle according to an embodiment of this application; Figure 2 This is a top view of the left front beam transport vehicle in an embodiment of this application; Figure 3 This is a top view of the structure of the left rear beam transport vehicle in an embodiment of this application; Figure 4 This is a structural cross-sectional view of the left front beam transport vehicle in an embodiment of this application; Figure 5 This is a top view of the electric drive bridge structure according to an embodiment of this application; Figure 6 This is a front view of the electric drive bridge housing according to an embodiment of this application; Figure 7 This is a top view of the electric drive bridge housing in an embodiment of this application.

[0020] Figure label: 1. Front left beam transport vehicle; 2. Front right beam transport vehicle; 3. Double-track front beam-carrying trolley; 4. Front crossbeam; 5. Rear left beam transport vehicle; 6. Double-track rear beam-carrying trolley; 7. Rear right beam transport vehicle; 8. Rear crossbeam; 11. Front body; 12. Front driver's cab; 13. Front power system; 14. Single-line front beam-carrying trolley; 15. Electric drive axle; 16. Front steering axle; 17. Rear steering axle; 18. Balance cylinder; 51. Rear body; 52. Rear driver's cab; 53. Rear power system; 54. Single-line rear beam-carrying trolley; 151. Electric drive axle housing; 152. Electric drive assembly; 153. Differential; 154. Drive motor; 155. Reducer; 156. Wheel hub; 157. Brake; 158. Axle housing; 159. Balance cylinder mounting base; 160. Lateral stop seat; 161. Longitudinal stop seat. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] This application provides an electric-drive bridge beam transport vehicle, which solves the problems in related technologies where double-track box girders and single-track box girders cannot be used together, and where diesel engines are used to provide driving force for the whole vehicle after being reduced in speed by a reducer, resulting in high costs and serious pollution.

[0023] See Figures 1 to 4 As shown in the figure, this application provides an electric-drive bridge girder transport vehicle, including: The front beam transport vehicle assembly includes a left front beam transport vehicle 1 and a right front beam transport vehicle 2 arranged side by side. The left front beam transport vehicle 1 and the right front beam transport vehicle 2 are detachably connected by a front crossbeam 4. Both the left front beam transport vehicle 1 and the right front beam transport vehicle 2 are equipped with an electric drive axle 15 and a steering axle. The electric drive axle 15 is used to drive the left front beam transport vehicle 1 and the right front beam transport vehicle 2 to move, and the steering axle provides steering for the left front beam transport vehicle 1 and the right front beam transport vehicle 2 when cornering.

[0024] The rear beam transport unit, located behind the front beam transport unit, includes a left rear beam transport vehicle 5 and a right rear beam transport vehicle 7 arranged side-by-side. The left and right rear beam transport vehicles 5 and 7 are detachably connected by a rear crossbeam 8. Both the left and right rear beam transport vehicles 5 and 7 are equipped with an electric drive axle 15 and a steering axle. The electric drive axle 15 drives the left and right rear beam transport vehicles 5 and 7, while the steering axle provides steering for the left and right rear beam transport vehicles 5 and 7 when cornering.

[0025] In this embodiment, the electric-drive bridge girder transport vehicle's front girder transport unit consists of a left front girder transport vehicle 1 and a right front girder transport vehicle 2 arranged side-by-side, while the rear girder transport unit consists of a left rear girder transport vehicle 5 and a right rear girder transport vehicle 7 arranged side-by-side. When transporting double-track box girders, the left front girder transport vehicle 1 and the right front girder transport vehicle 2 are connected as one unit via a front crossbeam 4, and the left rear girder transport vehicle 5 and the right rear girder transport vehicle 7 are connected as one unit via a rear crossbeam 8, forming a double-track girder transport vehicle for transporting double-track box girders.

[0026] When it is necessary to transport a single-line box girder, the front crossbeam 4 between the left front girder transport vehicle 1 and the right front girder transport vehicle 2 is removed, and the rear crossbeam 8 between the left rear girder transport vehicle 5 and the right rear girder transport vehicle 7 is also removed. Then, the left front girder transport vehicle 1 and the left rear girder transport vehicle 5 can be combined to form a single-line girder transport vehicle for transporting single-line box girders, and the right front girder transport vehicle 2 and the right rear girder transport vehicle 7 can be combined to form a single-line girder transport vehicle for transporting single-line box girders.

[0027] Furthermore, the left front beam transporter 1, right front beam transporter 2, left rear beam transporter 5, and right rear beam transporter 7 of the electric drive axle beam transporter of this application all use electric drive axles 15 to drive the beam transporter. The power of each electric drive axle 15 is independent of each other. The number of electric drive axles 15 configured for the beam transporter can be configured according to transportation needs, which enables the beam transporter to be modularly designed, with strong equipment adaptability, avoids the impact of centralized transmission system failure on the operation of the whole vehicle, and improves the reliability of the beam transporter.

[0028] In some alternative embodiments: see Figures 1 to 3 As shown, the application embodiment provides an electric drive bridge beam transport vehicle. The front beam transport vehicle group of the electric drive bridge beam transport vehicle also includes a double-line front beam-carrying trolley 3 connected to the top of the left front beam transport vehicle 1 and the right front beam transport vehicle 2. The top of the left front beam transport vehicle 1 and the right front beam transport vehicle 2 are provided with slides that slidably connect the double-line front beam-carrying trolley 3.

[0029] The rear beam transport vehicle group also includes a double-line rear beam-carrying trolley 6 connected to the top of the left rear beam transport vehicle 5 and the right rear beam transport vehicle 7. The top of the left rear beam transport vehicle 5 and the right rear beam transport vehicle 7 is provided with a slide rail for sliding connection of the double-line rear beam-carrying trolley 6.

[0030] The double-track front beam-carrying trolley 3 and the double-track rear beam-carrying trolley 6 are used to jointly support the double-track box girder, thereby distributing the weight load of the double-track box girder evenly to the left front beam transport vehicle 1, the right front beam transport vehicle 2, the left rear beam transport vehicle 5, and the right rear beam transport vehicle 7.

[0031] A single-line front beam-carrying trolley 14 is slidably connected to the top of both the left front beam-carrying trolley 1 and the right front beam-carrying trolley 2, and a single-line rear beam-carrying trolley 54 is slidably connected to the top of both the left rear beam-carrying trolley 5 and the right rear beam-carrying trolley 7. The single-line front beam-carrying trolley 14 and the single-line rear beam-carrying trolley 54 are used to jointly support the single-line box girder, thereby balancing and distributing the weight load of the single-line box girder to the left front beam-carrying trolley 1 and the left rear beam-carrying trolley 5, or to the right front beam-carrying trolley 2 and the right rear beam-carrying trolley 7.

[0032] In some alternative embodiments: see Figures 1 to 4 As shown, the application embodiment provides an electric drive axle beam transport vehicle. The left front beam transport vehicle 1 and the right front beam transport vehicle 2 of the electric drive axle beam transport vehicle both include a front vehicle body 11. The front front of the front vehicle body 11 is rotatably connected to the front driver's cab 12, and the rear end of the front vehicle body 11 is connected to a front vehicle power system 13 that provides power and / or hydraulic power to the electric drive axle 15 and the steering axle.

[0033] Both the left rear beam transport vehicle 5 and the right rear beam transport vehicle 7 include a rear body 51. The rear end of the rear body 51 is connected to a rear driver's cab 52. The rear end of the rear body 51 is connected to a rear vehicle power system 53 that provides power and / or hydraulic power to the electric drive axle 15 and the steering axle.

[0034] The steering axle includes a front steering axle 16 and a rear steering axle 17. Multiple sets of electric drive axles 15 are provided, located between the front steering axle 16 and the rear steering axle 17. Both the front steering axle 16 and the rear steering axle 17 have two sets. Both the front steering axle 16 and the rear steering axle 17 are connected to the front vehicle body 11 or the rear vehicle body 51 via a balancing cylinder 18 to adjust wheel steering.

[0035] The electric drive axle 15, the front steering axle 16, and the rear steering axle 17 are all connected to the front body 11 or the rear body 51 via equalizing cylinders 18, enabling the electric drive axle 15, the front steering axle 16, and the rear steering axle 17 to bear load evenly and adapt to uneven road surfaces. Depending on the transport load requirements, the number of electric drive axles 15 is usually 5 or 6 axles, and each electric drive axle 15 is an independent module, so its structure is not affected.

[0036] In some alternative embodiments: see Figures 4 to 7 As shown in the figure, the application embodiment provides an electric drive axle transport vehicle. The electric drive axle 15 of the electric drive axle transport vehicle includes an electric drive axle housing 151. The middle of the electric drive axle housing 151 is provided with an axle package 158 for accommodating and installing a differential 153. An electric drive assembly 152 is connected to the axle package 158. A clutch is provided between the electric drive assembly 152 and the differential 153. The clutch can disengage the electric drive assembly 152 from the differential 153 in the event of a drive failure, so that the vehicle can continue to travel.

[0037] A differential lock is installed on the differential 153, which can effectively prevent the vehicle from slipping and improve the vehicle's passability. The electric drive axle housing 151 has a half shaft connected to the differential 153. Both ends of the electric drive axle housing 151 have hubs 156 connected to the half shafts, and the hubs 156 are connected to brakes 157.

[0038] The electric drive assembly 152 includes an integrated housing connected to the axle housing 158. The integrated housing houses a reducer 155 and a drive motor 154 that are mutually connected. The output end of the reducer 155 is connected to a differential 153. The electric drive axle housing 151 has equalizing cylinder mounting seats 159, lateral stop seats 160, and longitudinal stop seats 161 located on the left and right sides of the axle housing 158.

[0039] The equalizing cylinder mounting seat 159 is located on the top of the electric drive axle housing 151, and the transverse stop seat 160 and the longitudinal stop seat 161 are respectively located on the front and rear sides of the electric drive axle housing 151.

[0040] The balancing cylinder mounting base 159 is connected to the balancing cylinder 18 via a pin. The balancing cylinder mounting base 159 includes a front support and a rear support that are symmetrically spaced along the axial direction of the electric drive bridge housing 151. Both the front support and the rear support are provided with pin holes.

[0041] In this embodiment, both the front and rear support ears are provided with pin holes, facilitating the rotatable connection of the end of the balancing cylinder 18 to the front and rear support ears via pins. The other end of the balancing cylinder 18 is connected to the front vehicle body 11 or the rear vehicle body 51, thereby enabling the lifting and balancing of the vertical movement of the front vehicle body 11 or the rear vehicle body 51. Two balancing cylinder mounting seats 159 are provided on the top of the electric drive axle housing 151. The two balancing cylinder mounting seats 159 are used to connect the two balancing cylinders 18, so that the electric drive axle housing 151 is evenly stressed on both sides.

[0042] In some alternative embodiments: see Figures 4 to 7 As shown in the embodiment, the application provides an electric drive bridge beam transport vehicle. The transverse stop seat 160 of the electric drive bridge beam transport vehicle includes an arc-shaped baffle and a reinforcing plate. The arc-shaped baffle is fixed on the electric drive bridge housing 151 and its convex arc surface faces the bridge housing 158. The reinforcing plate is fixed on the electric drive bridge housing 151 and connected to the concave arc surface of the arc-shaped baffle.

[0043] On the front side and the rear side of the electric drive axle housing 151 of the embodiment of the present application, transverse stop seats 160 are provided. That is, a total of four such transverse stop seats 160 are provided on the electric drive axle housing 151. The four transverse stop seats 160 are divided into two groups, and are respectively located on the left and right sides of the electric drive axle housing 151. The two transverse stop seats 160 in a group are symmetrically arranged with respect to the axis of the electric drive axle housing 151. The four transverse stop seats 160 are used to jointly limit the front vehicle body 11 or the rear vehicle body 51 transversely (i.e., in the width direction of the vehicle body).

[0044] In some alternative embodiments: Refer to Figures 4 to 7 As shown, the embodiment of the application provides an electric drive axle girder transporter. On the front side and the rear side of the electric drive axle housing 151 of the electric drive axle girder transporter, the longitudinal stop seats 161 are provided. The cross-section of the longitudinal stop seat 161 is a "C" - shaped or "U" - shaped structure. The longitudinal stop seat 161 is fixedly connected to the electric drive axle housing 151 to jointly form a vertical channel.

[0045] On the front side and the rear side of the electric drive axle housing 151 of the embodiment of the present application, longitudinal stop seats 161 are provided. That is, a total of four such longitudinal stop seats 161 are provided on the electric drive axle housing 151. The four longitudinal stop seats 161 are divided into two groups, and are respectively located on the left and right sides of the electric drive axle housing 151. The two longitudinal stop seats 161 in a group are symmetrically arranged with respect to the axis of the electric drive axle housing 151. The four longitudinal stop seats 161 are used to jointly limit the front vehicle body 11 or the rear vehicle body 51 longitudinally (i.e., in the length direction of the vehicle body), and transfer the power load of the electric drive axle 15 to the front vehicle body 11 or the rear vehicle body 51.

[0046] In some alternative embodiments: Refer to Figures 4 to 7 As shown, the embodiment of the application provides an electric drive axle girder transporter. The front cross beam 4 and the rear cross beam 8 are provided with multiple pieces. At both ends of the front cross beam 4 and the rear cross beam 8, mounting plates are provided, and a plurality of mounting holes are opened on the mounting plates; the front cross beam 4 and the rear cross beam 8 are arranged at intervals in sequence along the length direction of the girder transporter.

[0047] On the mutually approaching sides of the left front girder transporter 1 and the right front girder transporter 2, a plurality of front mounting seats connecting the front cross beam 4 are provided, and the front mounting seats are fixed on the front vehicle body 11. On the mutually approaching sides of the left rear girder transporter 5 and the right rear girder transporter 7, a plurality of rear mounting seats connecting the rear cross beam 8 are provided, and the rear mounting seats are fixed on the rear vehicle body 51.

[0048] Both ends of the front cross beam 4 are respectively fixedly connected to the front mounting seats of the left front girder transporter 1 and the right front girder transporter 2 by bolts. Both ends of the rear cross beam 8 are respectively fixedly connected to the rear mounting seats of the left rear girder transporter 5 and the right rear girder transporter 7 by bolts, thereby realizing the transportation of the double - line box girder. When transporting a single - line box girder, the front cross beam 4 and the rear cross beam 8 can be removed.

[0049] Working principle This application provides an electric drive axle beam transporter. The electric drive axle beam transporter of this application is equipped with a front beam transporter group, which includes a left front beam transporter 1 and a right front beam transporter 2 arranged side-by-side. The left front beam transporter 1 and the right front beam transporter 2 are detachably connected by a front crossbeam 4. Both the left front beam transporter 1 and the right front beam transporter 2 are equipped with an electric drive axle 15 and a steering axle. A rear beam transporter group is located behind the front beam transporter group. The rear beam transporter group includes a left rear beam transporter 5 and a right rear beam transporter 7 arranged side-by-side. The left rear beam transporter 5 and the right rear beam transporter 7 are detachably connected by a rear crossbeam 8. Both the left rear beam transporter 5 and the right rear beam transporter 7 are equipped with an electric drive axle 15 and a steering axle.

[0050] Therefore, the front beam transport vehicle group of the electric drive bridge beam transport vehicle of this application consists of a left front beam transport vehicle 1 and a right front beam transport vehicle 2 arranged in parallel, and the rear beam transport vehicle group consists of a left rear beam transport vehicle 5 and a right rear beam transport vehicle 7 arranged in parallel. When it is necessary to transport double-track box girders, the left front beam transport vehicle 1 and the right front beam transport vehicle 2 are connected as one unit by the front crossbeam 4, and the left rear beam transport vehicle 5 and the right rear beam transport vehicle 7 are connected as one unit by the rear crossbeam 8 to form a double-track beam transport vehicle for transporting double-track box girders.

[0051] When it is necessary to transport a single-line box girder, the front crossbeam 4 between the left front girder transport vehicle 1 and the right front girder transport vehicle 2 is removed, and the rear crossbeam 8 between the left rear girder transport vehicle 5 and the right rear girder transport vehicle 7 is removed. Then, the left front girder transport vehicle 1 and the left rear girder transport vehicle 5 can be combined to form a single-line girder transport vehicle for transporting single-line box girders, and the right front girder transport vehicle 2 and the right rear girder transport vehicle 7 can be combined to form a single-line girder transport vehicle for transporting single-line box girders.

[0052] Furthermore, the left front beam transporter 1, right front beam transporter 2, left rear beam transporter 5, and right rear beam transporter 7 of the electric drive axle beam transporter of this application all use electric drive axles 15 to drive the beam transporter. The power of each electric drive axle 15 is independent of each other. The number of electric drive axles 15 configured for the beam transporter can be configured according to transportation needs, which enables the beam transporter to be modularly designed, with strong equipment adaptability, avoids the impact of centralized transmission system failure on the operation of the whole vehicle, and improves the reliability of the beam transporter.

[0053] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0054] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0055] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An electrically driven bridge transport vehicle, characterized in that include: The front beam transport vehicle group includes a left front beam transport vehicle (1) and a right front beam transport vehicle (2) arranged side by side. The left front beam transport vehicle (1) and the right front beam transport vehicle (2) are detachably connected by a front crossbeam (4). Both the left front beam transport vehicle (1) and the right front beam transport vehicle (2) are equipped with an electric drive axle (15) and a steering axle. The rear beam transport vehicle group is located behind the front beam transport vehicle group. The rear beam transport vehicle group includes a left rear beam transport vehicle (5) and a right rear beam transport vehicle (7) arranged side by side. The left rear beam transport vehicle (5) and the right rear beam transport vehicle (7) are detachably connected by a rear crossbeam (8). Both the left rear beam transport vehicle (5) and the right rear beam transport vehicle (7) are equipped with an electric drive axle (15) and a steering axle.

2. The electric-drive bridge beam transporter as described in claim 1, characterized in that: The front beam transport vehicle group also includes a double-line front beam-carrying trolley (3) connected to the top of the left front beam transport vehicle (1) and the right front beam transport vehicle (2). The top of the left front beam transport vehicle (1) and the right front beam transport vehicle (2) is provided with a slide rail that slidably connects the double-line front beam-carrying trolley (3). The rear beam transport vehicle group also includes a double-line rear beam-carrying trolley (6) connected to the top of the left rear beam transport vehicle (5) and the right rear beam transport vehicle (7). The top of the left rear beam transport vehicle (5) and the right rear beam transport vehicle (7) is provided with a slide rail that slidably connects to the double-line rear beam-carrying trolley (6).

3. The electric-drive bridge beam transporter as described in claim 1, characterized in that: The top of the left front beam transport vehicle (1) and the right front beam transport vehicle (2) are slidably connected to a single-line front beam-carrying trolley (14), and the top of the left rear beam transport vehicle (5) and the right rear beam transport vehicle (7) are slidably connected to a single-line rear beam-carrying trolley (54).

4. The electric-drive bridge beam transporter as described in claim 1, characterized in that: The left front beam transport vehicle (1) and the right front beam transport vehicle (2) both include a front vehicle body (11), the front front of the front vehicle body (11) is rotatably connected to a front driver's cab (12), and the rear end of the front vehicle body (11) is connected to a front vehicle power system (13) that provides power and / or hydraulic power to the electric drive axle (15) and the steering axle. The left rear beam transport vehicle (5) and the right rear beam transport vehicle (7) both include a rear vehicle body (51), the rear end of the rear vehicle body (51) is connected to a rear driver's cab (52), and the rear end of the rear vehicle body (51) is connected to a rear vehicle power system (53) that provides power and / or hydraulic power to the electric drive axle (15) and the steering axle. The steering axle includes a front steering axle (16) and a rear steering axle (17). The electric drive axle (15) is provided in multiple sets, and the multiple sets of electric drive axles (15) are located between the front steering axle (16) and the rear steering axle (17). Both the front steering axle (16) and the rear steering axle (17) are provided in two sets.

5. An electric-drive bridge beam transporter as described in claim 1 or 4, characterized in that: The electric drive axle (15) includes an electric drive axle housing (151). A bridge housing (158) for accommodating and installing a differential (153) is provided in the middle of the electric drive axle housing (151). An electric drive assembly (152) is connected to the bridge housing (158), and a clutch is provided between the electric drive assembly (152) and the differential (153). The electric drive assembly (152) includes an integrated housing connected to the bridge housing (158). A reduction gear (155) and a drive motor (154) that are drivingly connected to each other are provided in the integrated housing. The output end of the reduction gear (155) is drivingly connected to the differential (153).

6. The electric drive axle girder carrier according to claim 5, wherein: On the electric drive axle housing (151), there are balance oil cylinder mounting seats (159), lateral stop seats (160), and longitudinal stop seats (161) located on the left and right sides of the bridge housing (158). The balance oil cylinder mounting seats (159) are arranged on the top of the electric drive axle housing (151), and the lateral stop seats (160) and the longitudinal stop seats (161) are respectively arranged on the front side and the rear side of the electric drive axle housing (151).

7. The electric drive axle girder carrier according to claim 6, wherein: The balance oil cylinder mounting seats (159) include front support ears and rear support ears that are symmetrically spaced along the axial direction of the electric drive axle housing (151). Pin shafts holes are provided on both the front support ears and the rear support ears.

8. The electric drive axle girder carrier according to claim 6, wherein: The lateral stop seat (160) includes an arc-shaped baffle and a reinforcing plate. The arc-shaped baffle is fixed on the electric drive axle housing (151) and its convex arc surface faces the bridge housing (158), and the reinforcing plate is fixed on the electric drive axle housing (151) and is connected to the concave arc surface of the arc-shaped baffle.

9. The electric drive axle girder carrier according to claim 6, wherein: Longitudinal stop seats (161) are provided on both the front side and the rear side of the electric drive axle housing (151). The cross-section of the longitudinal stop seat (161) is a "C" - shaped or "U" - shaped structure, and the longitudinal stop seat (161) is fixedly connected to the electric drive axle housing (151) to jointly form a vertical channel.

10. The electric drive axle girder carrier according to claim 1, wherein: There are multiple front cross beams (4) and rear cross beams (8). Mounting plates are provided at both ends of the front cross beams (4) and the rear cross beams (8), and multiple mounting holes are provided on the mounting plates. On the side where the left front girder carrier (1) and the right front girder carrier (2) are close to each other, there are multiple front mounting seats connecting the front cross beams (4). On the side where the left rear girder carrier (5) and the right rear girder carrier (7) are close to each other, there are multiple rear mounting seats connecting the rear cross beams (8).

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