Wiring device between bogie and vehicle body and vehicle

Abstract

The invention discloses a wiring device between a bogie and a vehicle body and a vehicle, the wiring device between the bogie and the vehicle body comprises a bogie frame and the vehicle body, a traction device mounting plate is mounted below an underframe sleeper beam of the vehicle body, and the traction device mounting plate is connected with the bogie frame through a traction rod; a junction box is arranged below the traction device mounting plate, and the center of the junction box is located on the rotating axis of the bogie frame; the junction box is provided with a first threading hole, a high-voltage area and a low-voltage area are arranged in the junction box, the high-voltage area is provided with a high-voltage connecting terminal, and the low-voltage area is provided with a low-voltage connecting terminal. According to the invention, in the rotation process of the bogie, the swing amplitude of the cable reaches the minimum value, and the cable only swings slightly, so that the fatigue of the cable and branches hung beside a rail are avoided, and the fatigue life of the cable is not influenced even if a metal shielding material is added on the cable.

Description

Technical Field

[0001] The invention relates to a rail vehicle, in particular to a wiring device between a bogie and a vehicle body and a vehicle. Background Art

[0002] The bogies of rail vehicles are generally equipped with traction motors, speed sensors, axle temperature sensors, motor temperature sensors and other equipment. These equipment are connected to the traction converter, axle temperature alarm host, brake system host and other on-board equipment installed on the car body through power cables and signal cables. At present, when these devices on the bogie are connected to the equipment on the car body through cables, the cables are scattered in multiple places on the bogie, resulting in the following problems:

[0003] (1) When the bogie is connected or separated from the car body, cables need to be connected at multiple locations on the bogie, which is a complicated operation. In addition, the space under the car is small, and a maintenance site with a trench is required to perform the above operations. Therefore, a lot of time and resources are consumed, which is seriously contrary to the requirement of quickly replacing the bogie during vehicle operation.

[0004] (2) During the operation of the vehicle, the car body and the bogie are in long-term relative motion, causing the cables connecting the bogie and the car body distributed in various parts of the bogie to swing continuously, which may lead to: fatigue failure due to swinging, breakage of the cable due to contact with branches and other debris on both sides of the road during swinging, and wear of the cable due to contact with the bogie or equipment on the vehicle during long-term operation.

[0005] (3) In order to ensure that the cables connecting the bogie and the vehicle body equipment do not rub against the bogie and vehicle parts under various operating conditions of the vehicle, it is often necessary to simulate various operating conditions of the vehicle (including extreme turning radius, bogie air spring deflation, vehicle climbing, etc.) on a rotating test bench after the connection between the vehicle body and the bogie is completed, and then determine the cable length that can meet all the above operating conditions on site based on the test results. This test wastes a lot of resources and time.

[0006] (4) Since the current flowing through the traction motor cable will radiate electromagnetic waves, it is easy to cause the vehicle's external radiation to exceed the standard. Therefore, the traction motor cable is often required to be shielded with metal materials. After the metal shielding treatment of the cable that frequently swings greatly increases the hardness of the cable, it weakens the fatigue resistance of the cable and accelerates the fatigue fracture of the cable. Summary of the invention

[0007] The technical problem to be solved by the present invention is that it is difficult to realize the rapid connection and separation of the connecting cables between the bogie equipment and the car body equipment in existing vehicles, and the cables are prone to breakage, and a large amount of resources are required to verify the cable length. The present invention provides a wiring device and a vehicle between the bogie and the car body, which can realize the rapid connection and separation of the connecting cables between the bogie equipment and the car body equipment, and the cables are not easy to break, and do not require a large amount of resources to verify the cable length.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A wiring device between a bogie and a car body, comprising a bogie frame and a car body, wherein a traction device mounting plate is mounted below a bottom frame bolster of the car body, and the traction device mounting plate is connected to the bogie frame through a traction rod;

[0010] A junction box is arranged below the traction device mounting plate, and the center of the junction box is located on the rotation axis of the bogie frame;

[0011] The junction box is provided with a first threading hole, and a high-voltage area and a low-voltage area are provided in the junction box. The high-voltage area is provided with a high-voltage connection terminal, and the low-voltage area is provided with a low-voltage connection terminal.

[0012] The present invention arranges a junction box below the traction device mounting plate, and the center of the junction box is located on the rotation axis of the bogie frame, and a first threading hole is arranged on the junction box, and a high-voltage area and a low-voltage area are arranged in the junction box, a high-voltage connection terminal is arranged in the high-voltage area, and a low-voltage connection terminal is arranged in the low-voltage area, so that the cable of the equipment on the bogie can be connected to the junction box, and then connected to the corresponding equipment on the car body through the junction box and the adapter cable, so that the wiring between the bogie and the car body is concentrated at the junction box, so that not only when the bogie is connected or separated from the car body, the connection or separation of the connecting cable can be realized quickly and efficiently; and because the center of the junction box coincides with the rotation axis of the bogie (the center of the junction box is located on the rotation axis of the bogie frame), the swing amplitude of the connecting cable on the junction box is very small, and the length of the connecting cable can be set to be short enough, so that the swing amplitude of the connecting cable is too large and the length is too long to prevent fatigue fracture or the cable from touching the bogie and car body parts and being worn, and the cable length verification link can be omitted to save production costs. At the same time, wrapping the metal shielding material on the connecting cable for electromagnetic protection will not affect the fatigue resistance of the cable.

[0013] Preferably, a second threading hole for leading the cable to the vehicle body is provided on the frame bolster located above the junction box, an operating hole is provided on the traction device mounting plate, and the second threading hole is connected to the operating hole, so that the adapter cable can directly enter the vehicle body through the operating hole and the second threading hole.

[0014] Preferably, the second threading hole is arranged just above the operating hole, so that the connecting cable can enter the vehicle body in the shortest path, and the cables in the junction box can be conveniently inspected and maintained through the second threading hole and the operating hole.

[0015] Preferably, the traction device mounting plate is mounted on the center line of the chassis bolster.

[0016] Preferably, a waterproof seal is provided on the first threading hole to prevent rainwater from entering the junction box and to avoid short circuits caused by rainwater.

[0017] Preferably, a partition plate is provided inside the junction box, and the partition plate divides the junction box into a high-voltage area and a low-voltage area.

[0018] Preferably, the high-voltage connection terminals are integrated on the terminal block, and the low-voltage connection terminals are integrated on the connector, so that the wiring in the junction box is more regular.

[0019] Preferably, a power cable clamp for fixing the cable is installed near the first wiring hole connected to the high-voltage area, and a signal cable clamp for fixing the cable is installed near the first wiring hole connected to the low-voltage area to further reduce the swing of the cable.

[0020] Preferably, the vehicle body is installed with an interior floor, and an inspection plate is provided on the interior floor corresponding to the second wire threading hole to facilitate maintenance of the wiring in the junction box inside the vehicle body.

[0021] Based on the same inventive concept, the present invention also provides a vehicle, which includes the wiring device between the bogie and the vehicle body.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] a) The center of the junction box of the present invention coincides with the rotation axis of the bogie, ensuring that the swing amplitude of the cable reaches the minimum value during the rotation of the bogie, and the cable only swings slightly, thereby avoiding cable fatigue and hanging on branches beside the track, etc. At the same time, even if metal shielding material is added to the cable, it will not affect the fatigue life of the cable.

[0024] b) After adopting the present invention, the cable on the junction box only swings slightly, and the cable clamps are arranged near the junction box to fix it, so that the length of the active part of the cable is very small. Therefore, it is not necessary to determine the precise length of the cable on a rotating test bench, thereby avoiding the waste of human and material resources during the test process.

[0025] c) The present invention allows all cables on the bogie to be loaded onto the vehicle from a junction box, and the junction box is provided with a terminal block and a connector, so that operators can find the cables more quickly and operate quickly.

[0026] d) The present invention opens an inspection hole on the car body, so that operators can connect and disassemble the cables without a trench, thereby realizing rapid replacement of the bogie. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 The figure is a schematic diagram of the installation structure of the wiring device between the bogie and the car body of the present invention.

[0029] Figure 2 It is the upper structural diagram of the wiring device between the bogie and the car body of the present invention.

[0030] Figure 3 It is a bottom structural diagram of the wiring device between the bogie and the car body of the present invention.

[0031] Figure 4 This is a diagram of installing the wiring device between the bogie and the car body on the car body bolster of the present invention.

[0032] Figure 5 Schematic diagram of threading the bogie cables onto the car body.

[0033] Figure 6 Schematic diagram of the interior floor of the vehicle body.

[0034] In the figure: 1-traction device mounting plate; 2-traction motor power cable; 3-power cable line card; 4-signal cable line card; 5-signal cable; 6-signal transfer cable; 7-connector; 8-terminal block; 9-partition plate; 10-junction box; 11-waterproof seal; 12-traction rod; 13-fastener; 14-car body frame bolster; 15-signal wire trough; 16-power wire trough; 17-car body; 18-inspection panel; 19-interior floor; 20-speed sensor; 21-temperature sensor; 22-traction motor; 23-first threading hole; 24-bogie frame; 25-rotating shaft; 26-traction motor power transfer cable; 27-operating hole; 28-second threading hole. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] See also Figure 1 - Figure 4 An embodiment of the wiring device between the bogie and the car body of the present invention includes a traction device mounting plate 1 arranged on the vehicle, the traction device mounting plate 1 is installed on the center line of the car body bottom frame bolster 14 through a fastener 13, and the traction device mounting plate 1 is connected to the bogie frame 24 through a traction rod 12, so that the bogie frame 24 is connected to the car body 17, so as to achieve the purpose of the bogie pulling the car body 17 forward.

[0039] The bogie frame 24 is equipped with a traction motor 22 , a speed sensor 20 , and a temperature sensor 21 .

[0040] A junction box 10 is arranged below the traction device mounting plate 1, and the center of the junction box 10 is located on the rotation axis 25 of the bogie frame 24. A circular first threading hole 23 is provided on the side of the junction box 10, and a waterproof seal 11 is provided on the first threading hole 23. A partition plate 9 is provided inside the junction box 10 to divide the junction box 10 into two parts, a high-voltage area and a low-voltage area. The high-voltage area is provided with a terminal row 8 (or a connector), and the low-voltage area is provided with a connector 7. An operation hole 27 is provided at a position corresponding to the traction device mounting plate 1 just above the terminal row 8 and the connector 7, which is used to observe and operate the connector 7 in the junction box 10 and the cable connected to the terminal row 8.

[0041] The traction motor power cable 2 is routed along the bogie from the traction motor 22 connection point, passes through the waterproof seal 11 on the first threading hole 23, enters the high-voltage area in the junction box 10, and is connected to the terminal block 8; the signal cable 5 is routed along the bogie from the speed sensor 20 and the temperature sensor 21 connection points, passes through the waterproof seal 11 on the first threading hole 23, enters the low-voltage area in the junction box 10, and is connected to the connector 7. The high-voltage area cable and the low-voltage area cable are separated by a partition plate 9 to prevent electromagnetic interference.

[0042] A power cable clamp 3 or a signal cable clamp 4 is arranged near the first threading hole 23 of the junction box 10 for fixing the cable. During the operation of the vehicle, the bogie frame 24 swings around the rotating shaft 25. Since the center of the junction box 10 coincides with the rotating axis 25 (the center of the junction box 10 is located on the rotating axis 25 of the bogie frame 24), the relative movement between the junction box 10 and the power cable clamp 3 and the signal cable clamp 4 near it is very slight. Therefore, the cable swing amplitude between the waterproof seal 11 and the power cable clamp 3 and the signal cable clamp 4 is very small, and the cable length can be set short enough, which not only avoids determining the precise length of the cable on the rotating test bench and the waste of human and material resources during the test, but also prevents the cable from swinging too much and being too long, resulting in fatigue fracture, or the cable touching the parts of the bogie and the car body and being worn. In addition, the cable can also be wrapped with metal shielding material for electromagnetic protection, and the anti-fatigue performance of the cable will not be affected by the wrapping of the metal shielding material.

[0043] like Figure 5 As shown, a second threading hole 28 is provided on the body frame bolster 14 corresponding to the operating hole 27 on the traction device mounting plate 1. After the traction motor power cable 2 and the signal cable 5 are respectively connected to the terminal block 8 and the connector 7, they are passed through the traction motor power transfer cable 26 and the signal transfer cable 27, through the upper operating hole 27 and the second threading hole 28 on the body frame bolster 14, and enter the upper side of the body 17. The signal cable trough 15 and the power cable trough 16 are provided on the upper side of the body 17. The cables are laid along these two cable troughs to the corresponding equipment on the vehicle for connection.

[0044] like Figure 6 As shown, the car body 17 is provided with an interior floor 19, and the signal line duct 15 and the power line duct 16 are installed between the car body 17 and the interior floor 19. The interior floor 19 is provided with an inspection plate 18 corresponding to the second threading hole 28 on the car body chassis bolster 14. In this way, under the working condition that there is no trench in the vehicle maintenance depot, the operator only needs to open the inspection plate 18 from the car body 17 to see all the cables connecting the car body 17 and the bogie, so as to realize the rapid inspection of the cables and the installation or removal of the bogie electrical connection lines, so as to quickly replace the bogie.

[0045] 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 wiring device between a bogie and a car body, comprising a bogie frame and a car body, a traction device mounting plate is installed under the bottom frame bolster of the car body, and the traction device mounting plate is connected to the bogie frame through a traction rod, characterized in that: A junction box is arranged below the traction device mounting plate, and the center of the junction box is located on the rotation axis of the bogie frame; The junction box is provided with a first threading hole, and a high-voltage area and a low-voltage area are provided in the junction box. The high-voltage area is provided with a high-voltage connection terminal, and the low-voltage area is provided with a low-voltage connection terminal.

2. The wiring device between the bogie and the car body according to claim 1, characterized in that: A second threading hole for leading cables to the vehicle body is provided on the frame bolster above the junction box, an operating hole is provided on the traction device mounting plate, and the second threading hole is communicated with the operating hole.

3. The wiring device between the bogie and the car body according to claim 1, characterized in that: The traction device mounting plate is mounted on the center line of the chassis bolster.

4. The wiring device between the bogie and the car body according to claim 1, characterized in that: A waterproof sealing member is provided on the first threading hole.

5. The wiring device between the bogie and the car body according to claim 1, characterized in that: A partition plate is arranged inside the junction box, and the partition plate divides the junction box into a high-voltage area and a low-voltage area.

6. The wiring device between the bogie and the car body according to claim 1, characterized in that: The high-voltage connection terminals are integrated on the terminal block, and the low-voltage connection terminals are integrated on the connector.

7. The wiring device between the bogie and the car body according to claim 1, characterized in that: A power cable line card for fixing cables is installed near the first wiring hole connected to the high-voltage area, and a signal cable line card for fixing cables is installed near the first wiring hole connected to the low-voltage area.

8. The wiring device between the bogie and the car body according to claim 2, characterized in that: The second threading hole is opened just above the operating hole.

9. The wiring device between the bogie and the car body according to claim 2, characterized in that: The vehicle body is provided with an interior floor, and an inspection plate is arranged on the interior floor corresponding to the second threading hole.

10. A vehicle, characterized in that It comprises the wiring device between the bogie and the car body as claimed in any one of claims 1 to 9.

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