Modular engineering truck bogie

Abstract

The invention discloses a modular engineering truck bogie which comprises a framework module, a gearbox mounting module and a wheel pair module, and the framework module comprises side beam bodies and a cross beam used for connecting the two side beam bodies. The side beam body is divided into a main body structure, secondary spring installation blocks located on the upper surface of the middle of the main body structure, a current collector installation block located on the side face of the middle of the main body structure and an accessory device installation block located at the end of the main body structure, and the multiple secondary spring installation blocks are arranged according to different project requirements. The main body structure of the side beam body, the secondary spring mounting block, the current collector mounting block and the accessory device mounting block are assembled into a whole; a universal gear box suspender mounting seat is arranged on the cross beam; the cross beam and the side beam body adopt a structural decoupling design, and the cross beam and the side beam are welded into a whole. According to the invention, the same framework module can meet the requirement of installing different external equipment in different projects, the general rate of the engineering truck bogie framework is improved, and the test cost is reduced.

Description

Technical Field

[0001] The invention relates to a rail vehicle bogie, in particular to a modular engineering vehicle bogie. Background Art

[0002] At present, battery engineering vehicles are widely used in various subway companies for marshaling, shunting and track maintenance. The structure and overall technical solution of engineering vehicle bogies are basically the same, but due to the large differences in the technical systems of manufacturers, the different installation interfaces of suppliers' equipment, and the more or less individual needs of users, there are many types of engineering vehicle bogie solutions. The excessive variety of engineering vehicle bogies has brought huge design, manufacturing and procurement costs to vehicle manufacturers, and also brought huge spare parts procurement, storage and vehicle maintenance costs to vehicle users. It is urgent to stand at a higher level to carry out top-level planning and simplify, standardize and modularize the design of bogies.

[0003] Chinese patent CN108639090A discloses a modular bogie for rail transit vehicles, which includes a frame and a secondary suspension system arranged on the frame, and is characterized in that the crossbeam, end beam and side beam are detachably connected, and the traction seat is designed inside the crossbeam of the frame. Obviously, in this patent, only the structural components of the frame (crossbeam, end beam and side beam) are modularly designed, that is, when it is modularly assembled, only the crossbeam, end beam and side beam can be replaced as a whole, and different installation interfaces cannot be selected according to different requirements of different projects and platforms to adapt to different installation spacing requirements. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the commonality of the frame, gearbox, etc. of the traditional engineering vehicle bogie is not high, resulting in high test costs and low commonality in later maintenance. The present invention provides a modular engineering vehicle bogie to improve the commonality of the bogie frame. To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A modular engineering vehicle bogie comprises a frame module, a gearbox installation module and a wheelset module, and its structural features are:

[0006] The frame module includes two side beams arranged in parallel and a crossbeam for connecting the two side beams. The side beams are divided into: a main structure, a two-spring mounting block located on the upper surface of the middle part of the main structure, a current collector mounting block located on the side of the middle part of the main structure, and an accessory device mounting block located at the end of the main structure. The two-spring mounting block is configured in multiple blocks according to different project requirements. When the bogie is assembled, the main structure of the side beam, the two-spring mounting block, the current collector mounting block and the accessory device mounting block are assembled into one; a universal gear box hanger mounting seat is arranged on the crossbeam; the crossbeam and the side beam adopt a structural decoupling design, and the crossbeam and the side beam are welded into a whole.

[0007] The present invention divides the side beam into: a main structure, a two-spring mounting block located on the upper surface of the middle part of the main structure, a current collector mounting block located on the side of the middle part of the main structure, and an accessory device mounting block located at the end of the main structure. The two-spring mounting blocks are configured in multiple blocks according to different project requirements, and a universal gear box hanger mounting seat is provided on the crossbeam. At the same time, a structural decoupling design is adopted for the crossbeam and the side beam, so that the same frame module can meet the requirements of installing different external equipment (current collector, antenna, sensor) in different projects, and the external equipment can be easily interchangeable, thereby improving the commonality of the engineering vehicle bogie frame, reducing the test cost, and having strong commonality in later maintenance.

[0008] Preferably, the distance between the gear box boom mounting seat and the track centerline is 480-500 mm to accommodate the installation of gear boxes for different projects.

[0009] Similarly, the distance from the center of the gearbox boom of the gearbox mounting module to the center line of the bogie is 480-500 mm, and the distance from the end face of the pinion shaft to the center of the gearbox boom is 260-270 mm.

[0010] Preferably, the wheelset module includes an axle and a wheel, the strength of the wheel and the axle is calculated according to the upper limit of the axle weight of the platform to be adapted, and the wheel is first produced by using the same module to make a semi-finished wheel, and then the treads required for different projects are separately cut out during assembly. The axle is divided into an axle body, a bearing seat and a wheel seat module assembled at both ends of the axle body, and a gear seat module assembled between the axle body and the bearing seat and wheel seat module. The axle body is a fixed module suitable for each specific project in the platform, the bearing seat and wheel seat module are optional modules, one is respectively arranged at both ends of the axle body, the wheel seat center distance of the two bearing seat and wheel seat modules is set to between 1532-1541mm, and the gear seat module is flexibly designed according to different gearbox structures. In this way, the present invention can use the same mold to produce semi-finished wheels in wheelset modules of different platforms and projects, greatly saving the cost of wheel preparation. At the same time, the axle of the present invention can also be equipped with different bearing seats and wheel seat modules, gear seat modules according to the requirements of different platforms and projects for the axle, thereby achieving the use of the same axle body to adapt to different platforms and projects, greatly reducing the cost of equipment preparation.

[0011] Preferably, the current collector mounting block comprises a side beam upper mounting seat and a current collector mounting seat, the side beam upper mounting seat is fixedly connected to the main structure, and the current collector mounting seat is arranged on the side beam upper mounting seat.

[0012] Preferably, the current collector mounting seat is 1120-1130 mm away from the center line of the track, and the current collector mounting seat is drilled with threaded holes adapted to the installation of different current collector structures.

[0013] Preferably, the accessory device mounting block is provided with waist-shaped holes for accommodating the installation of various accessory devices.

[0014] Preferably, the auxiliary devices include an ATC antenna, a sand spreading device, a tread cleaning device, and a wheel rim lubrication device.

[0015] Preferably, a position for installing a noise reduction ring is reserved on the semi-finished wheel product.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) The present invention fully considers the design requirements of engineering vehicle bogies under the conditions of limits, lines, different speeds and axle weights, and adopts a modular segmentation method to reasonably segment variables and non-variables, thereby realizing the solidification of non-variables of components to be tested, reducing the test cost, realizing mass production and procurement of bogie frames, reducing the cost of production and manufacturing tooling, and improving product competitiveness.

[0018] 2) The framework structure of the present invention fully considers the unified requirements of the installation interface of the auxiliary equipment, and avoids excessive types of framework structures by reserving interfaces and adding transition equipment, thereby improving the interchangeability of auxiliary equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the modular engineering vehicle bogie of the present invention.

[0021] Figure 2 This is the structural diagram of the framework module.

[0022] Figure 3 This is a structural diagram of the side beam.

[0023] Figure 4 Structural drawing of the mounting block for the current collector.

[0024] Figure 5 This is the structural diagram of the beam.

[0025] Figure 6 This is the structural diagram of the wheelset module.

[0026] Figure 7 This is a diagram of the semi-finished structure of the wheel.

[0027] Figure 8 This is the structural diagram of the axle.

[0028] Fig. 9 This is the installation status diagram of the gearbox module. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 As shown, an embodiment of a modular engineering vehicle bogie of the present invention includes main components such as a frame module 3, a gearbox installation module 2, and a wheelset module 1.

[0033] like Figure 2 As shown, the frame module 3 is composed of a side beam body 4 and a cross beam 5 to form an H-shaped open structure. The cross beam 5 and the side beam body 4 are structurally decoupled, and the cross beam 5 and the side beam body 4 are matched through the cross beam mounting holes on the side beam body 4 and welded into a whole.

[0034] like Figure 3 As shown, the side beam body 4 is divided into: a main body structure 6, a secondary spring mounting block 9, a current collector mounting block 7, an accessory device mounting block 8, etc.

[0035] The side beam body 4 adopts a universal frame structure, and the middle upper cover plate and the secondary spring mounting seat of the universal frame structure are extracted as the optional secondary spring mounting block 9. The secondary spring mounting block 9 can be configured in multiple pieces according to different projects in the platform. For example, in this embodiment, there are secondary spring mounting blocks 9 and 10 to adapt to the rubber pile, steel spring group or hourglass spring used on bogies of different speed levels. The interfaces of each scheme in the secondary spring mounting block 9 are consistent with the interfaces in the main structure 6, and are connected to the main structure 6 by butt welds. A current collector mounting block 7 is set in the middle of the outer surface of the main structure 6. The current collector mounting block 7 includes two parts: a mounting seat 12 on the side beam and a current collector mounting seat 13 (such as Figure 4 As shown). The mounting seat 12 on the side beam is used to support the current collector mounting seat 13, so that the current collector mounting seat 13 can be connected to the main structure 6. The setting of the current collector mounting seat 13 comprehensively considers different limits and line factors (the distance between the frame mounting surface and the track center is set to 1130mm). By drilling threaded holes on the current collector mounting seat 13, different current collector structures can be installed without affecting the strength of the main structure 6 of the side beam body. An accessory device mounting block 8 is set at the end of the main structure 6, and 8 waist-shaped holes 11 are respectively set on the accessory device mounting block 8 to adapt to the installation of various accessory devices, including ATC antennas, sand spreading devices, tread cleaning devices, wheel rim lubrication devices and other equipment.

[0036] like Figure 5As shown, a universal gearbox hanger mounting seat 14 and a motor mounting seat 15 are provided on the crossbeam 5, and the distance between the gearbox hanger mounting seat 14 and the center line of the track is 490 mm, so that gearbox structures with different parameters can be configured.

[0037] like Figure 6 As shown, the wheel set module 1 includes an axle 17 and a wheel 16. The strength of the wheel 16 and the axle 17 is calculated according to the upper limit of the axle weight of the platform to be adapted, so that it can meet all project requirements within the axle weight range of the platform.

[0038] like Figure 7 As shown, during the design, the wheel 16 is cut into different items of wheel tread 18 for different projects and then solidified to form a semi-finished wheel product 19, so that the wheel blank can use the same module and reserve a noise reduction ring installation position 20. During production, the same mold can be used to process the semi-finished wheel (all wheel structures except the tread are processed), and then the tread 18 that meets the project requirements can be processed by machining.

[0039] like Figure 8 As shown, the axle 17 is divided into an axle body 21, a bearing seat and wheel seat module 22, and a gear seat module 23, wherein the axle body 21 is a fixed module, which is suitable for various specific projects in the platform; the bearing seat and wheel seat module 22 is an optional module, one of which is provided at each end of the axle body 21, and the wheel seat center distance of the two bearing seat and wheel seat modules 22 is set to be between 1532-1541mm, and specific parameters can be selected according to different wheel pair inner distances; the gear seat module 23 is a variable module, which is flexibly designed according to different gear box structures, and is located between the bearing seat and wheel seat module 22 on one side and the axle body 21.

[0040] like Fig. 9 As shown, after analyzing the gearbox parameter requirements of each project, it is determined that the distance from the center of the gearbox hanger 24 (the center line of the gearbox suspension device) in the gearbox installation module 2 to the center line of the bogie is 490mm, and the distance from the pinion shaft end face 25 to the center of the gearbox hanger 24 (the center line of the gearbox suspension device) is solidified as 265mm, thereby solidifying the interface between the gearbox and the frame, so that different gearboxes can be matched under the premise that the frame remains unchanged.

[0041] The above is only a specific implementation scheme of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the art can make many possible changes and modifications to the technical scheme of the present invention by using the technical content disclosed above without departing from the scope of the technical scheme of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical scheme of the present invention should fall within the protection scope of the technical scheme of the present invention.

Claims

1. A modular engineering vehicle bogie, comprising a frame module (3), a gearbox installation module (2), and a wheelset module (1), characterized in that: The frame module (3) comprises two side beams (4) arranged in parallel and a cross beam (5) for connecting the two side beams. The side beams are divided into: a main structure (6), a two-spring mounting block (9) located on the upper surface of the middle part of the main structure, a current collector mounting block (7) located on the side of the middle part of the main structure, and an accessory device mounting block (8) located at the end of the main structure. The two-spring mounting block is configured in multiple pieces according to different project requirements. When the bogie is assembled, the main structure (6), the two-spring mounting block (9), the current collector mounting block (7) and the accessory device mounting block (8) of the side beam are assembled into one body; a universal gear box hanger mounting seat (14) is arranged on the cross beam; the cross beam and the side beam adopt a structural decoupling design, and the cross beam and the side beam are welded into a whole.

2. The modular engineering vehicle bogie according to claim 1, characterized in that: The distance between the gear box boom mounting seat and the track centerline is 480-500 mm.

3. The modular engineering vehicle bogie according to claim 1, characterized in that: The distance from the center of the gearbox suspension rod (24) of the gearbox mounting module (2) to the center line of the bogie is 480-500 mm, and the distance from the end face of the pinion shaft (25) to the center of the gearbox suspension rod is 260-270 mm.

4. The modular engineering vehicle bogie according to claim 1, characterized in that: The wheel set module (1) comprises an axle (17) and a wheel (16). The strength of the wheel and the axle is calculated according to the upper limit of the axle weight of the platform to be adapted. When producing the wheel, the same module is first used to make a semi-finished wheel. When assembling, the tread (18) required for different projects is separately cut out. The axle is divided into an axle body (21), a bearing seat and wheel seat module (22) assembled at both ends of the axle body, and a gear seat module (23) assembled between the axle body and the bearing seat and wheel seat module. The axle body is a fixed module suitable for various specific projects in the platform. The bearing seat and wheel seat module (22) is an optional module, one of which is respectively arranged at both ends of the axle body. The wheel seat center distance of the two bearing seat and wheel seat modules is set to be between 1532-1541 mm. The gear seat module is flexibly designed according to different gear box structures.

5. The modular engineering vehicle bogie according to claim 1, characterized in that: The current collector mounting block comprises a side beam upper mounting seat (12) and a current collector mounting seat (13), the side beam upper mounting seat is fixedly connected to the main structure, and the current collector mounting seat is arranged on the side beam upper mounting seat.

6. The modular engineering vehicle bogie according to claim 2, characterized in that: The current collector mounting seat is 1120-1130 mm away from the track centerline, and threaded holes drilled on the current collector mounting seat are adapted to the installation of different current collector structures.

7. The modular engineering vehicle bogie according to claim 1, characterized in that: The accessory device mounting block is provided with a waist-shaped hole (11) for accommodating the installation of various accessory devices.

8. The modular engineering vehicle bogie according to claim 7, characterized in that: The auxiliary devices include an ATC antenna, a sand spreading device, a tread cleaning device, and a wheel rim lubricating device.

9. The modular engineering vehicle bogie according to claim 4, characterized in that: A noise reduction ring installation position (20) is reserved on the semi-finished wheel product.

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