A side forced guide rail type rubber-tyred train traction converter

Abstract

The utility model discloses a side part forces guide rail type rubber -tyred train traction converter, including the cabinet body, the adapter beam, and the cabinet body is installed in the rubber -tyred train vehicle bottom through the adapter beam, the input distribution storehouse of circuit breaker subassembly, fuse subassembly, AC contactor subassembly, adapter terminal subassembly for installing in cabinet body is set gradually, rectifier module storehouse for installing rectifier module, the heat dissipation fan storehouse for installing centrifugal fan, traction module storehouse for installing traction module, wherein rectifier module and traction module's installation with the cabinet body is realized through the loose bolt, compared with prior art, the utility model discloses the mode of module integration, each module is independent, and convenient dismounts and installs, and adopts adjustable loose bolt design, and effectively solves the problem of fixed thread hole misalignment caused by cabinet welding deformation.

Description

Technical Field

[0001] This utility model belongs to the field of rail transit, and in particular is a side-guided guide rail type rubber-tired train traction converter. Background Technology

[0002] In the current rail transit sector, in addition to the most conventional urban rail trains (whether underground or elevated, the vast majority of which use standard steel wheel hubs to run on the track), there are also some high-passenger-volume train models that use special line designs, such as suspended type and straddle type, and some train lines use rubber-tired running methods.

[0003] Rubber-tired trains have certain advantages over conventional steel-wheeled trains in terms of noise control, climbing ability, turning flexibility, road adaptability, and track construction costs.

[0004] Compared to the traction converters required for subway vehicles, the traction converters for rubber-tired trains need to be smaller and lighter. Furthermore, compared to the internal space of conventional subway traction converters, the installation space for rubber-tired train traction converters is even smaller and more compact, while also requiring maintainability. Therefore, the size and design layout of existing conventional subway traction converters do not meet the installation requirements of rubber-tired trains. Utility Model Content

[0005] The purpose of this utility model is to provide a side-guided rail type traction converter for rubber-tired trains. It is a traction converter designed specifically for rubber-tired trains, featuring a compact layout, lightweight design, and maintainable operating space.

[0006] The technical solution to achieve the purpose of this utility model is as follows: a side-guided rail type traction converter for rubber-tired trains, including a cabinet and a transfer beam. The cabinet is installed at the bottom of the rubber-tired train vehicle through the transfer beam. Inside the cabinet, there are sequentially arranged an input power distribution compartment for installing circuit breaker components, fuse components, AC contactor components, and transfer terminal components; a rectifier module compartment for installing rectifier modules; a cooling fan compartment for installing centrifugal fans; and a traction module compartment for installing traction modules. The rectifier modules and traction modules are installed to the cabinet by non-detachable bolts.

[0007] Compared with the prior art, the significant advantages of this utility model are:

[0008] (1) This utility model adopts a modular integration approach, with each module being independent and easy to disassemble and install. The main vulnerable or visible areas can be operated without removing the modules from the whole machine. For example, when disassembling the sensor assembly of the rectifier module, it is not necessary to first disassemble the entire rectifier module and remove it from the cabinet. The sensor assembly can be removed directly on the module, which greatly reduces the time and complexity of disassembly and assembly.

[0009] (2) This utility model fixes the cabinet to the bottom of the rubber-tired train vehicle through the transfer beam, which is convenient for disassembly and assembly. Moreover, by simply changing the structural dimensions and structural form of the transfer beam, it can meet the installation requirements of different rubber-tired trains.

[0010] (3) This utility model adopts an adjustable non-detachable bolt design, which effectively solves the problem of misalignment of the fixed threaded holes caused by the deformation of the cabinet welding; it can completely avoid the problem of bolts falling off during conventional bolt disassembly or installation. At the same time, this structural form greatly reduces the inaccuracy of the installation hole spacing and product inconsistency during the cabinet welding process, thereby reducing the difficulty and cost of production and improving the tolerance of later module installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the rubber-tired train traction converter of this utility model. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the overall structure of the rubber-tired train traction converter of this utility model. Figure 2 ;

[0013] Figure 3 for Figure 2 Enlarged view of region I in the middle;

[0014] Figure 4 This is a schematic diagram of the air inlet and outlet of the traction converter for rubber-tired trains according to this utility model;

[0015] Figure 5 This is a schematic diagram of the rectifier module in the traction converter for rubber-tired trains of this utility model;

[0016] Figure 6 This diagram illustrates the installation steps for rectifier module 7. Figure 1 ;

[0017] Figure 7 for Figure 6 Enlarged view of the adjustable waist hole area;

[0018] Figure 8 This diagram illustrates the installation steps for rectifier module 7. Figure 2 ;

[0019] Figure 9This diagram illustrates the installation steps for rectifier module 7. Figure 3 ;

[0020] Figure 10 This diagram illustrates the installation steps for rectifier module 7. Figure 4 ;

[0021] Figure 11 This diagram illustrates the installation steps for rectifier module 7. Figure 5 ;

[0022] Figure 12 This diagram illustrates the installation steps for rectifier module 7. Figure 6 . Detailed Implementation

[0023] The terminology used in this utility model is for illustrative purposes only and is not intended to limit the scope of the utility model. The following description, in conjunction with the appendix, further clarifies this utility model. Figure 1-6 The following is a detailed description of some embodiments of this utility model.

[0024] This utility model discloses a side-mounted guide rail type traction converter for rubber-tired trains, which is mainly divided into a cabinet 1 and a transfer beam 2. The cabinet 1 is installed at the bottom of the rubber-tired train vehicle through the transfer beam 2, which is convenient for disassembly and assembly. Moreover, by simply changing the structural dimensions and structural form of the transfer beam, it can meet the installation requirements of different rubber-tired trains.

[0025] Cabinet 1 is formed by cutting and bending the sheet material into a top panel, bottom panel, left and right side panels, and then welding them together. It is lightweight and has high strength.

[0026] Each compartment inside cabinet 1 is equipped with a mounting plate made of bent steel plate, which is used to install and fix circuit breaker assembly 3, fuse assembly 4, AC contactor assembly 5, adapter terminal assembly 6, rectifier module 7, centrifugal fan 8, and traction module 9.

[0027] The interior of cabinet 1 is divided into four compartments, from left to right: input power distribution compartment, rectifier module compartment, cooling fan compartment, and traction module compartment;

[0028] The input distribution compartment is equipped with components such as circuit breaker assembly 3, fuse assembly 4, AC contactor assembly 5, and adapter terminal assembly 6.

[0029] The circuit breaker assembly 3 includes an electrical circuit breaker and a steel mounting plate; the electrical circuit breaker is fixed on the steel mounting plate, and the steel mounting plate is installed on the cabinet 1 by nuts, washers, etc.; the circuit breaker assembly 3 mainly performs functions such as cutting off, connecting, and protecting the input circuit;

[0030] The fuse assembly 4 is used to protect the input circuit. The fuse assembly 4 includes: an electrical fuse, a conductive busbar, a fuse mounting plate, and an insulator. The electrical fuse is connected to the conductive busbar by bolts. The lower end of the insulator is connected to the fuse mounting plate by bolts, and the upper end is connected to the conductive busbar by bolts. As a whole, one end of the fuse is connected to the circuit breaker assembly 3, and the other end is connected to the AC contactor assembly 5. It is installed in the bottom area of ​​the cabinet 1 by nuts, washers, etc.

[0031] The AC contactor assembly 5 includes an AC contactor, a mounting plate, and a conductive busbar; one end of the conductive busbar is bolted to the connection point of the AC contactor, while the contactor is fastened to the mounting plate with long screws; the conductive busbar installed at the lower end of the AC contactor is connected to the fuse assembly 4; the entire assembly is mounted on the cabinet 1 using nuts and washers; its main functions are circuit switching and control, and undervoltage and overload protection.

[0032] The adapter terminal assembly 6 includes terminals, guide rails, and mounting plates. The guide rails are secured to the mounting plates with screws, and the terminals are snapped onto the guide rails. The mounting plates are fastened to the cabinet 1 with nuts, washers, etc. After the wires of the control circuit are connected, they are branched out.

[0033] The rectifier module compartment contains a rectifier module 7, which is connected to three AC wires from the reactor at its front end. After rectification, it outputs positive and negative terminals and is connected to the traction module 9 via a busbar.

[0034] The rectifier module compartment of cabinet 1 is equipped with guide bars 1-1 for positioning the rectifier module 7 during installation;

[0035] When the rectifier module 7 is pushed to the back of the rectifier module compartment, it is fixed by the non-detachable bolt 7-23; the non-detachable bolt 7-23 can be adjusted up and down to compensate for the deviation in the size of the mounting thread hole caused by the welding deformation of the cabinet 1.

[0036] Specifically, the rectifier module 7 includes: a heat sink 7-1, and an upper extension bracket 7-2, a lower extension bracket 7-3, an AC sensor mounting assembly 7-4, a DC sensor mounting assembly 7-5, a driver board mounting assembly 7-6, a power module mounting assembly 7-7, a left support frame 7-8, a right support frame 7-9, an input stacked busbar 7-10, an output stacked busbar 7-11, an insulating cable tie plate 7-12, an insulating support column 7-13, an IGBT (i.e., an insulated gate bipolar transistor) 7-14, an insulator 7-15, an insulator pad 7-16, a first capacitor mounting bracket 7-17, a second capacitor mounting bracket 7-18, a main control board assembly 7-19, a capacitor fixing insulating plate 7-20, a sliding pad 7-21, a threaded block 7-22, a non-detachable bolt 7-23, a supporting capacitor 7-24, and several bolts;

[0037] The positions, installation relationships, and installation steps of the components in rectifier module 7 are as follows:

[0038] (1) First, fasten the IGBT 7-14 and the insulator pad 7-16 to the radiator 7-1 with bolts; similarly, fasten the upper extension bracket 7-2 and the lower extension bracket 7-3 to the radiator 7-1 with bolts; then screw the 13 insulating support columns 7-13 into the corresponding positions of the radiator 7-1, and similarly fix the insulator pad 7-16 to the radiator 7-1 with bolts; then screw the 2 insulators 7-15 into the rivet screws of the insulator pad 7-16; similarly, fasten the threaded block 7-22 to the radiator 7-1 with screws (the threaded block 7-22 has a waist-shaped through hole, and the radiator 7-1 has a corresponding threaded hole); then screw the non-detachable bolt 7-23 into the threaded block 7-22.

[0039] (2) Next, the input stacked busbar 7-10 and the output stacked busbar 7-11 are fastened to the IGBT 7-14 by bolts; then the AC sensor mounting assembly 7-4 is passed through the input stacked busbar 7-10 and fastened to the upper extension bracket 7-2 by bolts; similarly, the insulating cable tie plate 7-12 is fastened to the insulating support column 7-13 by screws.

[0040] (3) Next, fasten the left support frame 7-8 and the right support frame 7-9 to the radiator 7-1 with bolts; insert the capacitor fixing insulating plate 7-20 into the support capacitor 7-24, and fasten the second capacitor mounting frame 7-18 to the tail end of the support capacitor 7-24 with nuts to form an assembly of four capacitors together, and connect it to the first capacitor mounting frame 7-17 with bolts; then fasten the positive and negative terminals of the support capacitor 7-24 to the output stacked busbar 7-11 with bolts, and at the same time fasten the left and right sides of the first capacitor mounting frame 7-17 to the left support frame 7-8 and the right support frame 7-9 with screws;

[0041] (4) Secure the drive board mounting assembly 7-6 to the left support frame 7-8 and the right support frame 7-9 with screws; pass the DC sensor mounting assembly 7-5 through the output stack busbar 7-11 and secure it to the right support frame 7-9; secure the power module mounting assembly 7-7 to the first capacitor mounting frame 7-17 with bolts.

[0042] (5) Finally, countersunk screws are used to fasten the two sliding pads 7-21 to the left support frame 7-8 and the right support frame 7-9; the main control board assembly 7-19 is fastened to the first capacitor mounting bracket 7-17 with screws, and the assembly of the rectification module is completed.

[0043] (7) Finally, use the lifting platform vehicle to lift the rectifier module 7 to a position similar to the slide groove of the cabinet 1, and then push it in.

[0044] The threaded block 7-22 has two oblong holes for mounting the threaded block 7-22 onto the radiator 7-1 with screws (the radiator 7-1 has corresponding threaded holes). The threaded block 7-22 also has a threaded hole, which corresponds to an oblong through hole on the radiator 7-1. The non-detachable bolt 7-23 is screwed through the threaded hole on the threaded block 7-22 and the oblong through hole on the radiator 7-1, and engages with the threaded hole on the cabinet 1 to connect the rectifier module 7 to the cabinet.

[0045] When the four captive bolts 7-23 of the rectifier module 7 cannot be matched with the corresponding threaded holes on the cabinet 1, the two screws on the threaded block 7-22 can be loosened and the threaded block 7-22 can be adjusted up and down to ensure that the four captive bolts 7-23 can be smoothly tightened into the threaded holes on the cabinet 1.

[0046] The cooling fan compartment is mainly equipped with centrifugal fans 8 for heat dissipation. Centrifugal fans 8 are located in the middle area between rectifier module 7 and traction module 9. When the fan is working, it generates suction to remove the heat from rectifier module 7 and traction module 9, and finally throws it out from the bottom of the cabinet through centrifugal fans 8.

[0047] Centrifugal fan 8 is an externally purchased component used for forced air cooling of the traction module and rectifier module.

[0048] The traction module compartment is equipped with a traction module 9. The input terminal of the traction module 9 is connected to the positive and negative poles (i.e. the output terminal of the rectifier module 7), and then inverts it to produce three-phase AC power, which is connected to the traction motor through wires. Its main heat sink is equipped with two sets of traction modules, which are divided into two three-phase AC power supply to two sets of traction motors.

[0049] The traction module compartment of cabinet 1 is equipped with guide bars 1-1 for positioning the traction module 9 during installation;

[0050] When the traction module 9 is pushed to the back of the traction module compartment, it is also secured by the threaded block 7-22 and the non-detachable bolt 7-23.

[0051] The traction module and the rectifier module have similar structures, but different principles. The traction module takes DC power as input and converts it into AC power, while the rectifier module takes AC power as input and converts it into DC power as output.

[0052] The assembly process of a side-guided guide rail type rubber-tired train traction converter disclosed in this utility model is as follows:

[0053] (1) Installation in the power distribution compartment: The circuit breaker and other devices in the power distribution compartment are fastened to the mounting plate with bolts to form the circuit breaker assembly 3; the fuse and other devices are fastened to the mounting plate (steel plate bent and formed) with bolts to form the fuse assembly 4; the AC contactor is fastened to the mounting plate (steel plate bent and formed) with bolts to form the AC contactor assembly 5; multiple adapter terminals are fastened to the mounting plate (steel plate bent and formed) with guide rails to form the adapter terminal assembly 6; then, nuts and washers are used to press them into the power distribution compartment of cabinet 1 in sequence, and then the interconnection is carried out by wires or busbars;

[0054] (2) Installation of rectifier module 7 inside the rectifier module compartment: The rectifier module 7 is lifted to the edge of the cabinet 1 door frame by a lifting platform vehicle, and then gradually pushed into the cabinet 1. Under the positioning of the guide bar 1-1, it is pushed into the back of the rectifier module compartment. Then, the loose bolts 7-23 around the rectifier module 7 are tightened by a socket tool. Finally, the corresponding wires and bus copper plates are connected to form a conductive circuit.

[0055] (3) Install the cooling centrifugal fan 8 into the fan compartment in the middle of the cabinet 1, tighten it with bolts, and connect the wires accordingly to form a conductive path;

[0056] (4) Similarly, using the lifting platform vehicle, the traction module 9 is raised to the edge of the cabinet door frame and then gradually pushed into the cabinet 1. Under the positioning of the cabinet module guide strip 1-1, it is pushed all the way in. Then, the loose bolts 7-23 around the traction module 9 are tightened by the socket tool. Finally, the corresponding wires and bus copper plates are connected to form a conductive circuit.

[0057] (5) Connect all related internal devices with wires or busbars, and connect the control wires to the main control board of each module to complete the assembly of the whole machine.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A side-guided guide rail type rubber-tired train traction converter, characterized in that, The system includes a cabinet (1) and a transfer beam (2). The cabinet (1) is installed at the bottom of the rubber-tired train vehicle via the transfer beam. Inside the cabinet (1), there are sequentially arranged an input distribution compartment for installing circuit breaker components, fuse components, AC contactor components, and transfer terminal components; a rectifier module compartment for installing rectifier modules; a cooling fan compartment for installing centrifugal fans; and a traction module compartment for installing traction modules. The rectifier modules and traction modules are installed in the cabinet via non-detachable bolts.

2. The side-guided guide rail type rubber-tired train traction converter according to claim 1, characterized in that, The circuit breaker assembly (3) includes an electrical circuit breaker and a steel mounting plate; the electrical circuit breaker is fixed on the steel mounting plate, and the steel mounting plate is installed on the cabinet (1); the circuit breaker assembly (3) serves to cut off, connect, and protect the input circuit; The fuse assembly (4) is used to protect the input circuit. The fuse assembly (4) is installed in the bottom area of ​​the cabinet (1). One end of the fuse in the fuse assembly (4) is connected to the circuit breaker assembly (3), and the other end is connected to the AC contactor assembly (5). The AC contactor assembly (5) realizes the circuit switching and control, and provides protection against undervoltage and overload; the lower end of the AC contactor in the AC contactor assembly (5) is connected to the fuse assembly (4); The adapter terminal assembly (6) is installed on the cabinet (1) for connecting the wires of the control circuit and branching them out.

3. The side-guided guide rail type rubber-tired train traction converter according to claim 1, characterized in that, The rectifier module (7) includes: a heat sink (7-1), and an upper extension bracket (7-2), a lower extension bracket (7-3), an AC sensor mounting assembly (7-4), a DC sensor mounting assembly (7-5), a driver board mounting assembly (7-6), a power module mounting assembly (7-7), a left support frame (7-8), a right support frame (7-9), an input stacked busbar (7-10), an output stacked busbar (7-11), an insulating cable tie plate (7-12), an insulating support column (7-13), an IGBT (7-14), an insulator (7-15), an insulator pad (7-16), a first capacitor mounting bracket (7-17), a second capacitor mounting bracket (7-18), a main control board assembly (7-19), a capacitor fixing insulating plate (7-20), a sliding pad (7-21), and a supporting capacitor (7-24); The positions and installation relationships of the components in the rectifier module (7) are as follows: (1) Secure the IGBT (7-14) and insulator pad (7-16) to the radiator (7-1); secure the upper extension bracket (7-2) and lower extension bracket (7-3) to the radiator (7-1); then screw the insulating support column (7-13) into the radiator (7-1), and similarly fix the insulator pad (7-16) to the radiator (7-1) with bolts, and then screw the insulator (7-15) into the rivet screw of the insulator pad (7-16); similarly, secure the threaded block (7-22) to the radiator (7-1), and then screw the captive bolt (7-23) into the threaded block (7-22); (2) Secure the input stacked busbar (7-10) and output stacked busbar (7-11) to the IGBT (7-14); pass the AC sensor mounting assembly (7-4) through the input stacked busbar (7-10) and secure it to the upper extension bracket (7-2); secure the insulating cable tie plate (7-12) to the insulating support column (7-13); (3) Secure the left support frame (7-8) and the right support frame (7-9) to the heat sink (7-1); insert the capacitor fixing insulating plate (7-20) into the support capacitor (7-24), and secure the second capacitor mounting frame (7-18) to the tail end of the support capacitor (7-24) to form an assembly of four capacitors together, and connect it to the first capacitor mounting frame (7-17); secure the positive and negative terminals of the support capacitor (7-24) to the output stacked busbar (7-11), and at the same time secure the left and right sides of the first capacitor mounting frame (7-17) to the left support frame (7-8) and the right support frame (7-9); (4) Secure the driver board mounting assembly (7-6) to the left support frame (7-8) and the right support frame (7-9); pass the DC sensor mounting assembly (7-5) through the output stack busbar (7-11) and secure it to the right support frame (7-9); secure the power module mounting assembly (7-7) to the first capacitor mounting frame (7-17); (5) The two sliding pads (7-21) are fastened to the left support frame (7-8) and the right support frame (7-9); the main control board assembly (7-19) is fastened to the first capacitor mounting bracket (7-17); (7) Use a lifting platform vehicle to lift the rectifier module to a position similar to the cabinet slide, and then push it in.

4. The side-guided guide rail type rubber-tired train traction converter according to claim 3, characterized in that, The rectifier module is connected to the cabinet via a threaded block and a self-locking bolt. The threaded block has two oblong holes for mounting to the radiator with screws. The threaded block also has a threaded hole, which corresponds to an oblong through hole on the radiator. The self-locking bolt is screwed through the threaded hole on the threaded block and the oblong through hole on the radiator, and then engages with the threaded hole on the cabinet to connect the rectifier module to the cabinet.

5. The side-guided guide rail type rubber-tired train traction converter according to claim 1, characterized in that, The rectifier module compartment of the cabinet is equipped with guide bars for positioning and guiding the rectifier module during installation.

6. The side-guided guide rail type rubber-tired train traction converter according to claim 1, characterized in that, The traction module compartment of the cabinet is equipped with guide bars for positioning and guiding the traction module during installation.

7. The side-guided guide rail type rubber-tired train traction converter according to claim 1, characterized in that, The cabinet is made by cutting and bending the sheet metal into a top panel, bottom panel, and left and right side panels; and then assembled and welded together.

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