Urban rail vehicle chassis based on rapid pre-assembly

Abstract

The invention is suitable for the technical field of urban rail equipment, and provides an urban rail vehicle chassis based on rapid pre-assembly. Comprising a chassis; the middle high-voltage wire duct module and the middle low-voltage wire duct module are arranged on the bottom frame and are arranged on the two sides of the transverse center line of the bottom frame; the middle high-voltage line groove module comprises a middle high-voltage line groove. Two sides of the middle high-voltage line groove are respectively provided with a plurality of middle low-voltage line grooves. The middle low-voltage wire duct module comprises a middle low-voltage wire duct. Two sides of the middle low-voltage wire duct are respectively provided with a plurality of middle low-voltage wire ducts. The opening position of the middle low-voltage wire duct is detachably provided with a plurality of middle low-voltage wire duct cover plates which are arranged along the length direction of the middle low-voltage wire duct. The two pillow areas of the bottom frame are each provided with two pillow passing line groove modules, and each pillow passing line groove module comprises a pillow outer line groove, a pillow lower line groove and a pillow inner line groove. And the two sealing modules are arranged at the two ends of the middle low-voltage wire duct module.

Description

Technical Field

[0001] The invention relates to the technical field of urban rail equipment, in particular to an urban rail vehicle underframe based on rapid preassembly. Background Art

[0002] At present, the underframe wiring of urban rail vehicles is carried out using underframe cable troughs. The advantage of this type of wiring is that it makes the laying of wire harnesses and cables more standardized and rational, meets the requirements of heat dissipation and electromagnetic compatibility, and is also convenient for later maintenance. At the same time, it can unlock the wiring process and assembly process in vehicle production, solving the problem that operators rely on the vehicle underframe for on-site wiring during vehicle construction. However, with the development of the current mechanized production line, although the existing underframe wiring method can achieve process unlocking, the wiring process still consumes a lot of man-hours, and its structure cannot be quickly adapted to the tooling to achieve rapid wiring operations. At the same time, its structure is relatively complex, which is not convenient for construction personnel to perform cable laying operations. In order to solve this technical problem, an urban rail vehicle underframe based on rapid pre-assembly is proposed. Summary of the invention

[0003] The object of the present invention is to provide a rapid pre-assembled urban rail vehicle underframe to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: An urban rail vehicle underframe based on rapid pre-assembly, comprising: an underframe; A central high-voltage wire trough module and a central low-voltage wire trough module are arranged on the chassis, and the central high-voltage wire trough module and the central low-voltage wire trough module are arranged on both sides of the transverse center line of the chassis; the central high-voltage wire trough module includes a central high-voltage wire trough, and a plurality of wire trough hangers are respectively arranged on both sides of the central high-voltage wire trough; the central low-voltage wire trough module includes a central low-voltage wire trough, and a plurality of wire trough hangers are respectively arranged on both sides of the central low-voltage wire trough; the central low-voltage wire trough opening position is detachably provided with a plurality of central low-voltage wire trough cover plates, and the plurality of central low-voltage wire trough cover plates are arranged along the length direction of the central low-voltage wire trough; The two pillow areas of the chassis are each provided with two groups of pillow-passing wire trough modules, and the two groups of pillow-passing wire trough modules each include a pillow outer wire trough, a pillow lower wire trough, and a pillow inner wire trough; the pillow outer wire trough is arranged outside the pillow area, the pillow lower wire trough is arranged under the pillow, and the pillow inner wire trough is arranged inside the pillow; the two groups of pillow-passing wire trough modules correspond to the middle high-voltage wire trough module and the middle low-voltage wire trough module respectively; and two sealing modules arranged at both ends of the middle low-voltage wire duct module; the sealing modules are detachable structures.

[0005] As a further solution of the present invention: a wire tie plate is arranged inside the middle low-voltage wire duct, and the wire tie plate is arranged on a side close to the frame.

[0006] As a further solution of the present invention: three body profile slide grooves are arranged on the chassis; the body profile slide grooves are arranged along the length direction of the chassis; the three body profile slide grooves are arranged in parallel; body profile slide grooves are arranged on both sides of the middle low-voltage wire trough, and body profile slide grooves are also arranged on both sides of the middle high-voltage wire trough; the middle low-voltage wire trough is slidably arranged in the adjacent body profile slide grooves.

[0007] As a further solution of the present invention: the cable trough hanger is installed on the middle high-voltage cable trough or the middle low-voltage cable trough by bolts.

[0008] As a further solution of the present invention: a T-bolt is arranged on one side of the wire trough hanger adjacent to the car body profile slide slot, and the T-bolt is slidably arranged in a slide slot on the car body profile slide slot.

[0009] As a further solution of the present invention: a hose branch module passes through the inside of the sleeper wire trough module close to the middle low-voltage wire trough module; the low-voltage cable passes through the middle low-voltage wire trough module and the hose branch module.

[0010] As a further solution of the present invention: the sealing module includes a sealing frame, a sealing assembly and a pressure strip; the sealing frame is fixedly installed inside the middle low-voltage wire trough, a hose passes through the inside of the sealing frame, the sealing assembly is filled between the hose and the sealing frame, the pressure strip is arranged at the opening position of the sealing frame, and the pressure strip is in contact with the sealing assembly.

[0011] As a further solution of the present invention: the middle low-voltage wire duct and the middle high-voltage wire duct are both supported by aluminum alloy profiles.

[0012] As a further solution of the present invention: four chambers are arranged inside the middle low-voltage wire trough and the middle high-voltage wire trough for laying cables of different types and voltage levels.

[0013] As a further solution of the present invention: the middle high-voltage wire duct is a semi-closed wire duct with an opening at the top and heat dissipation holes at the bottom.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the middle high-voltage wire trough module and the middle low-voltage wire trough module are arranged on the chassis; the cables are laid under the wire binding bracket, and the low-voltage wire trough and the wire binding bracket are turned over as a whole during ground wiring, and the cables are placed therein for bundling. After the laying is completed, the wire trough is turned over as a whole by turning over the tooling, so that the installation is very convenient; and during later maintenance, the bottom sealing cover plate can be directly opened for maintenance and adding wires. The middle low-voltage wire trough adopts a segmented sealing cover plate at the bottom, and the middle low-voltage wire trough cover plate can be disassembled and replaced for one section alone, which is convenient for later maintenance and modification. The middle low-voltage wire trough module adopts a detachable sealing module for end sealing, and there is no need to pass the cables in the wire trough through any holes, and it can be laid directly, which is simple and fast. In the bogie bolster area, a bolster wire trough module is set, which adopts a three-section wire trough method and is installed under the bolster. The three-section wire troughs on the upper and lower sides are completely consistent, which reduces the types and quantities and facilitates the pre-assembly of ground wiring. By using the middle wire duct, three-section wire duct, sealing module, hose, and vehicle end box back plate in coordination during ground wiring, a chassis wiring module with low operating difficulty and fast operation is formed, completing the rapid pre-assembly of the entire ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention is a schematic structural diagram of an urban rail vehicle underframe based on rapid pre-assembly according to an embodiment of the present invention.

[0016] Figure 2 The present invention is a schematic structural diagram of a middle high-voltage wire duct module and a middle low-voltage wire duct module in an urban rail vehicle chassis based on rapid preassembly according to an embodiment of the present invention.

[0017] Figure 3 The present invention is a schematic structural diagram of a low-voltage wire duct module in the middle of a city rail vehicle chassis based on rapid pre-assembly according to an embodiment of the present invention.

[0018] Figure 4 The present invention is a schematic structural diagram of a low-voltage cable duct in the middle of a city rail vehicle chassis based on rapid pre-assembly according to an embodiment of the present invention.

[0019] Figure 5 The present invention is a schematic diagram of the arrangement of a sleeper duct module in an urban rail vehicle chassis based on rapid pre-assembly according to an embodiment of the present invention.

[0020] Figure 6 The present invention is a schematic diagram of matching a vehicle body slide groove and a T-bolt in an urban rail vehicle underframe based on rapid preassembly according to an embodiment of the present invention.

[0021] Figure 7 The present invention is a schematic structural diagram of a sealing module in an underframe of an urban rail vehicle based on rapid preassembly according to an embodiment of the present invention.

[0022] Figure 8The present invention is a schematic diagram of the end structure of a low-voltage wire duct module in the middle of an urban rail vehicle chassis based on rapid pre-assembly according to an embodiment of the present invention.

[0023] In the figure: 10- chassis, 20- middle high-voltage wire duct module, 30- middle low-voltage wire duct module, 40- pillow wire duct module, 50- hose branch module, 60- sealing module, 101-car body profile slide, 102-car body side beam equipment mounting seat, 201-Central high voltage cable duct, 301-middle low-voltage wire duct, 302-middle low-voltage wire duct cover, 303-wire duct hanger, 304-wire tie plate, 401-outside pillow wire duct, 402-under pillow wire duct, 403-inside pillow wire duct, 501-Hose, 601-sealing frame, 602-sealing assembly, 603-pressing strip. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1 See also Figures 1 to 8, a structural diagram of a rapid pre-assembled urban rail vehicle chassis provided in Example 1 of the present invention, the rapid pre-assembled urban rail vehicle chassis includes: a chassis 10, the chassis 10 is provided with a central high-voltage wire trough module 20 and a central low-voltage wire trough module 30, the central high-voltage wire trough module 20 and the central low-voltage wire trough module 30 are arranged on both sides of the transverse center line of the chassis 10; both ends of the central low-voltage wire trough module 30 are provided with sealing modules 60; the two pillow areas of the chassis 10 are provided with two groups of pillow-passing wire trough modules 40, and the two groups of pillow-passing wire trough modules 40 include pillow outer wire troughs 401, pillow lower wire troughs 402 and pillow inner wire troughs 403; the pillow outer wire troughs 401 are arranged outside the pillow area, the pillow lower wire troughs 402 are arranged under the pillow, and the pillow inner wire troughs 403 are arranged inside the pillow; the two groups of pillow-passing wire trough modules 40 are respectively connected to the central high-voltage wire trough module 2 0 corresponds to the middle low-voltage wire trough module 30 so that the low-voltage cables and the high-voltage cables can pass through respectively; the middle high-voltage wire trough module 20 includes a middle high-voltage wire trough 201, and a plurality of wire trough hangers 303 are respectively arranged on both sides of the middle high-voltage wire trough 201; the middle low-voltage wire trough module 30 includes a middle low-voltage wire trough 301, and a plurality of wire trough hangers 303 are respectively arranged on both sides of the middle low-voltage wire trough 301; three car body profile chutes 101 are arranged on the chassis 10; the car body profile chutes 101 are arranged along the length direction of the chassis 10; the three car body profile chutes 101 are arranged in parallel; car body profile chutes 101 are arranged on both sides of the middle low-voltage wire trough 301, and car body profile chutes 101 are also arranged on both sides of the middle high-voltage wire trough 201; the wire trough hangers 303 are slidably arranged in adjacent car body profile chutes 101.

[0026] In some embodiments, the sealing module 60 is a detachable structure.

[0027] See also Figure 3 and Figure 4 In some embodiments, the opening position of the middle low-voltage wire trough 301 is detachably provided with a plurality of middle low-voltage wire trough covers 302, and the plurality of middle low-voltage wire trough covers 302 are arranged along the length direction of the middle low-voltage wire trough 301. The middle low-voltage wire trough covers 302 are segmented fixed structures, which are convenient for later disassembly and maintenance.

[0028] In some embodiments, a cable tie plate 304 is disposed inside the middle low-voltage cable trough 301, and the cable tie plate 304 is disposed on a side close to the vehicle frame. The cable tie plate 304 is used to fix the cables.

[0029] By arranging the cable tie plate 304 close to the frame side, it is convenient to tie the cables together during installation. Figure 4 After the laying is completed, the middle low-voltage cable duct cover 302 is installed, turned 180 degrees as a whole, and fixed under the vehicle chassis for easy operation.

[0030] The central high-voltage wire trough module 20 and the central low-voltage wire trough module 30 of the present invention are arranged on the chassis 10; the cables are laid under the wire binding bracket. When wiring on the ground, the low-voltage wire trough and the wire binding bracket are turned 180 degrees as a whole, and the cables are placed therein for bundling. After the laying is completed, the wire trough is turned 180 degrees as a whole by turning the tooling, and the installation is very convenient; and during later maintenance, the bottom sealing cover plate can be directly opened for maintenance and adding wires. The bottom of the central low-voltage wire trough 301 adopts a segmented sealing cover plate and a central low-voltage wire trough cover plate 302, which can be disassembled and replaced for one section alone, which is convenient for later maintenance and modification. The central low-voltage wire trough module 30 adopts a detachable sealing module 60 for end sealing. There is no need to insert the cables in the wire trough into any holes, and it can be directly laid, which is simple and fast. In the bogie bolster area, a bolster wire trough module 40 is set, which adopts a three-section wire trough method and is installed under the bolster. The three-section wire troughs on the upper and lower sides are completely consistent, which reduces the types and quantities and facilitates the pre-assembly of ground wiring. By using the middle wire duct, three-section wire duct, sealing module, hose, and vehicle end box back plate in coordination during ground wiring, a chassis wiring module with low operating difficulty and fast operation is formed, completing the rapid pre-assembly of the entire ground.

[0031] In some embodiments, the cable trough hanger 303 can be installed on the middle high-voltage cable trough 201 or the middle low-voltage cable trough 301 by bolts; the cable trough hanger 303 is a triangular structure.

[0032] like Figure 4 As shown, in some embodiments, a T-bolt is provided on one side of the wire trough hanger 303 adjacent to the body profile chute 101, and the T-bolt is slidably disposed in a chute on the body profile chute 101. By using a special T-bolt, the wiring module and the body profile chute 101 can be quickly assembled.

[0033] In some embodiments, vehicle body side beam equipment mounting seats 102 are also provided on both sides of the base frame 10 .

[0034] In some embodiments, a hose branch module 50 passes through the inner part of the pillow wire duct module 40 near the middle low-voltage wire duct module 30; the low-voltage cable passes through the middle low-voltage wire duct module 30 and the hose branch module 50. The hose branch module 50 includes a plurality of hoses 501.

[0035] like Figure 7 and Figure 8As shown, in some embodiments, the sealing module 60 includes a sealing frame 601, a sealing assembly 602 and a pressure strip 603; the sealing frame 601 is fixedly installed inside the middle low-voltage wire trough 301, a hose 501 passes through the inside of the sealing frame 601, and the sealing assembly 602 is filled between the hose 501 and the sealing frame 601, and the pressure strip 603 is arranged at the opening position of the sealing frame 601, and the pressure strip 603 abuts against the sealing assembly 602, and is used to fix the sealing assembly 602 in the sealing frame 601, and the sealing module 60 is arranged to seal the end of the middle low-voltage wire trough module 30. The sealing module is used for sealing at the end of the middle low-voltage wire trough module 30 to improve the convenience and flexibility of ground pre-assembly. By setting the sealing module 60 and the hose for use in combination, the internal space of the wire trough is not sacrificed.

[0036] In some embodiments, the sealing frame 601 can be fixed in the middle low-voltage cable duct 301 by bolts.

[0037] In some embodiments, the middle low-voltage wire trough 301 and the middle high-voltage wire trough 201 are both supported by aluminum alloy profiles. The middle low-voltage wire trough 301 and the middle high-voltage wire trough 201 can be provided with four chambers for laying cables of different types and voltage levels. There is a certain gap between the middle low-voltage wire trough 301 and the middle high-voltage wire trough 201 and the chassis 10 to adapt to the change in the deflection of the vehicle body and the wire trough.

[0038] In some embodiments, the middle high-voltage cable duct 201 is a semi-enclosed cable duct with an opening at the top and heat dissipation holes at the bottom to facilitate heat dissipation of the high-voltage cable and fixation with cable ties.

[0039] In some embodiments, the middle low-voltage cable trough 301 is a fully enclosed cable trough with an opening at the bottom. Below it is a cable trough cover plate, which is also connected to the cable trough by T-bolts. The cover plate adopts a segmented structure to facilitate installation and subsequent maintenance. A wire binding bracket is provided on the top to fix the cables.

[0040] In some embodiments, a detachable mounting back plate is provided behind the vehicle end box of the chassis 10, and the back plate is pre-assembled during the ground wiring process, which makes it easier to install the entire module under the vehicle chassis, thereby avoiding repeated adjustments during the installation process due to the wiring module being too long.

[0041] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A rapid pre-assembled urban rail vehicle underframe, characterized in that: include: Base frame (10); A middle high-voltage wire trough module (20) and a middle low-voltage wire trough module (30) are arranged on the base frame (10), and the middle high-voltage wire trough module (20) and the middle low-voltage wire trough module (30) are arranged on both sides of the transverse center line of the base frame (10); the middle high-voltage wire trough module (20) comprises a middle high-voltage wire trough (201), and a plurality of wire trough hangers (303) are respectively arranged on both sides of the middle high-voltage wire trough (201); the middle low-voltage wire trough module (30) comprises a middle low-voltage wire trough (301), and a plurality of wire trough hangers (303) are respectively arranged on both sides of the middle low-voltage wire trough (301); a plurality of middle low-voltage wire trough cover plates (302) are detachably arranged at the opening position of the middle low-voltage wire trough (301), and the plurality of middle low-voltage wire trough cover plates (302) are arranged along the length direction of the middle low-voltage wire trough (301); The two pillow areas of the base frame (10) are each provided with two groups of pillow-passing wire duct modules (40), and the two groups of pillow-passing wire duct modules (40) each include a pillow-external wire duct (401), a pillow-under-wire duct (402), and a pillow-inner wire duct (403); the pillow-external wire duct (401) is arranged outside the pillow area, the pillow-under-wire duct (402) is arranged under the pillow, and the pillow-inner wire duct (403) is arranged inside the pillow; the two groups of pillow-passing wire duct modules (40) correspond to the middle high-voltage wire duct module (20) and the middle low-voltage wire duct module (30), respectively; and two sealing modules (60) arranged at both ends of the middle low-voltage wire duct module (30); the sealing modules (60) are detachable structures.

2. The urban rail vehicle underframe based on rapid pre-assembly according to claim 1 is characterized in that: A wire tie plate (304) is arranged inside the middle low-voltage wire duct (301), and the wire tie plate (304) is arranged on a side close to the vehicle frame.

3. The urban rail vehicle underframe based on rapid preassembly according to claim 1, characterized in that: The chassis (10) is provided with three car body profile slide grooves (101); the car body profile slide grooves (101) are arranged along the length direction of the chassis (10); the three car body profile slide grooves (101) are arranged in parallel; both sides of the middle low-voltage wire duct (301) are provided with car body profile slide grooves (101), and both sides of the middle high-voltage wire duct (201) are also provided with car body profile slide grooves (101); the middle low-voltage wire duct (301) is slidably arranged in adjacent car body profile slide grooves (101).

4. The urban rail vehicle underframe based on rapid preassembly according to claim 1, characterized in that: The cable trough hanger (303) is installed on the middle high-voltage cable trough (201) or the middle low-voltage cable trough (301) by means of bolts.

5. The urban rail vehicle underframe based on rapid pre-assembly according to claim 3 is characterized in that: A T-bolt is provided on one side of the wire trough hanger (303) adjacent to the vehicle body profile slide groove (101), and the T-bolt is slidably arranged in a slide groove on the vehicle body profile slide groove (101).

6. The urban rail vehicle underframe based on rapid preassembly according to claim 1, characterized in that: A hose branch module (50) passes through the interior of the pillow wire trough module (40) close to the middle low-voltage wire trough module (30); and the low-voltage cable passes through the middle low-voltage wire trough module (30) and the hose branch module (50).

7. The urban rail vehicle underframe based on rapid preassembly according to claim 1, characterized in that: The sealing module (60) comprises a sealing frame (601), a sealing assembly (602) and a pressure strip (603); the sealing frame (601) is fixedly installed inside the middle low-voltage wire duct (301); a hose (501) passes through the sealing frame (601); the sealing assembly (602) is filled between the hose (501) and the sealing frame (601); the pressure strip (603) is arranged at an opening position of the sealing frame (601); and the pressure strip (603) abuts against the sealing assembly (602).

8. The urban rail vehicle underframe based on rapid preassembly according to claim 1, characterized in that: The middle low-voltage wire duct (301) and the middle high-voltage wire duct (201) are both supported by aluminum alloy profiles.

9. The urban rail vehicle underframe based on rapid preassembly according to claim 1, characterized in that: The middle low-voltage cable duct (301) and the middle high-voltage cable duct (201) are each provided with four chambers for laying cables of different types and voltage levels.

10. The urban rail vehicle underframe based on rapid preassembly according to claim 9, characterized in that: The middle high-voltage wire duct (201) is a semi-enclosed wire duct with an opening at the top and heat dissipation holes at the bottom.

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