Pantograph with high safety

Abstract

The utility model discloses a pantograph high in safety, and belongs to the technical field of pantographs, and the pantograph high in safety is characterized in that the pantograph high in safety comprises two insulation supporting pieces used for being connected with the top of a locomotive; the supporting framework is arranged at the tops of the two insulating supporting pieces and is used for connecting and supporting the two insulating supporting pieces; the elastic part is installed at the top of the supporting framework, a sliding connecting plate is installed at the top of the elastic part, a contact copper bar is installed on the sliding connecting plate, and a power transmission cable is arranged on the side face of the contact copper bar. The two elastic parts are mounted on the supporting framework to support the sliding connecting plate, so that upward pressure is applied to the sliding connecting plate through the elastic parts, and a contact copper bar at the top of the sliding connecting plate is in contact with a contact cable above a locomotive all the time; the pushing force of the elastic part can enable the contact copper bar to continuously keep the contact area with the contact cable, and the power receiving stability is improved.

Description

Technical Field

[0001] This application belongs to the technical field of pantographs, and more specifically, it relates to a pantograph with high safety. Background Art

[0002] A pantograph is an electrical device for an electric locomotive to obtain electric energy from an overhead contact line. When the pantograph is working, it mainly conducts electricity by contacting the overhead conductive part with the contact cable arranged above the locomotive to charge the locomotive.

[0003] The running track of the locomotive is not completely horizontal, and the conductive part of the pantograph is fixedly installed. During the operation of the locomotive, due to the change of the track plane, the contact area between the conductive part and the contact cable may change, resulting in unstable power reception. When the conductive part is away from the contact cable, the contact area will become smaller, resulting in an increase in resistance. The sudden increase in resistance is likely to cause potential safety hazards for the locomotive's power consumption, and the existing pantographs generally do not adjust the height of the power reception surface of the pantograph according to the change of the track at any time.

[0004] Therefore, this application proposes a pantograph with high safety to improve the stability of power reception of the pantograph. Utility Model Content

[0005] Aiming at the deficiencies of the existing technology, the purpose of this utility model is to provide a pantograph with high safety, and its advantage lies in improving the stability of power reception of the pantograph.

[0006] To achieve the above purpose, this utility model provides the following technical solutions: A pantograph with high safety, comprising:

[0007] Insulating supports, there are two of the insulating supports, which are used to connect to the top of the locomotive;

[0008] Supporting framework, the supporting framework is arranged on the top of the two insulating supports and is used to connect and support the two insulating supports;

[0009] Elastic part, the elastic part is installed on the top of the supporting framework, a sliding connecting plate is installed on the top of the elastic part, a contact copper bar is installed on the sliding connecting plate, a power transmission cable is arranged on the side of the contact copper bar, the power transmission cable is connected to the power supply part of the locomotive, and the contact copper bar is lapped with the contact cable above the locomotive to supply power to the locomotive;

[0010] The elastic part can be telescoped up and down and applies an upward thrust, and the elastic part pushes the contact copper bar to always be in stable contact with the contact cable.

[0011] In a preferred embodiment: Protective covers are sleeved on the outer surfaces of the two insulating supports, and the inner top of the protective cover is connected to the supporting framework.

[0012] In a preferred embodiment: The elastic part includes a sliding rod, a connecting sleeve is sleeved on the outer surface of the lower part of the sliding rod, and a mounting plate is arranged on the upper part of the sliding rod;

[0013] A connecting flange is arranged at the top of the connecting sleeve, and an elastic member sleeved on the outer surface of the sliding rod is arranged between the connecting flange and the mounting plate;

[0014] The connecting sleeve extends into the inside of the protective cover, the connecting flange is fixed to the top of the protective cover in cooperation with bolts, and the top of the mounting plate is fixedly connected to the bottom of the sliding connecting plate.

[0015] In a preferred embodiment: A connecting frame is arranged at the top of the mounting plate, the connecting frame is hinged to the top of the sliding rod, and the connecting frame extends into the inside of the sliding connecting plate;

[0016] The diameter of the hole through which the mounting plate and the connecting frame are penetrated by the sliding rod is larger than the diameter of the sliding rod.

[0017] In a preferred embodiment: A waterproof box is arranged on the side surface of the sliding connecting plate, and the contact copper bar and the power transmission cable are connected inside the waterproof box.

[0018] In a preferred embodiment: Drag reduction parts are arranged on both the front and rear sides of the sliding connecting plate, and the drag reduction parts are streamlined curved surfaces.

[0019] In a preferred embodiment: The drag reduction part includes a wind guide plate, a bending connecting strip is arranged at the top of the wind guide plate, and the bending connecting strip is connected to the side surface of the sliding connecting plate by bolts;

[0020] A gap is left between the inner wall of the wind guide plate and the outer surface of the protective cover.

[0021] In a preferred embodiment: The wind guide plate is elastic, a support foot facing the protective cover is arranged at the bottom of the wind guide plate, and the support foot is lapped on the outer surface of the protective cover.

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

[0023] 1. By installing two elastic parts on the support skeleton to support the sliding connecting plate, an upward pressure is applied to the sliding connecting plate through the elastic parts, so that the contact copper bar on the top of the sliding connecting plate is always in contact with the contact cable above the locomotive. When the track goes down, the thrust of the elastic part can make the contact copper bar continue to maintain the contact area with the contact cable, achieving the effect of improving the power receiving stability;

[0024] 2. By setting a waterproof box on the side of the sliding connection plate and extending both the contact copper bar and the power transmission cable into the waterproof box for wiring and sealing, risks such as electric leakage, short - circuit, and accelerated aging caused by rain at the connection of the contact copper bar and the power transmission cable can be avoided. At the same time, a protective cover is set above the insulating support to cover the connection between the insulating support and the locomotive, so as to avoid water seepage at the connection, achieving the effect of improving safety;

[0025] 3. By setting resistance - reducing parts on both sides of the sliding connection plate, the wind resistance can be reduced during the running of the locomotive. When the locomotive runs at high speed, the resistance - reducing parts can also cooperate with the outer surface of the protective cover to provide additional supporting force for the elastic part, so as to reduce the traction force received by the elastic part, achieving the effect of extending the service life. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of this embodiment;

[0027] Figure 2 is the side view of the overall structure of this embodiment;

[0028] Figure 3 is the cross - sectional view of the protective cover structure of this embodiment;

[0029] Figure 4 is the exploded structural view of this embodiment;

[0030] Figure 5 is the structural schematic diagram of the elastic part of this embodiment;

[0031] Figure 6 is the structural schematic diagram of the resistance - reducing part of this embodiment.

[0032] Description of the Reference Numerals: 1. Insulating support; 2. Support skeleton; 3. Protective cover; 4. Elastic part; 401. Sliding rod; 402. Connecting sleeve; 403. Connecting flange; 404. Mounting plate; 405. Connecting frame; 406. Elastic member; 5. Sliding connection plate; 6. Contact copper bar; 7. Power transmission cable; 8. Waterproof box; 9. Resistance - reducing part; 901. Wind - guiding plate; 902. Bending connection bar; 903. Support foot. Detailed Embodiment

[0033] The following further elaborates on the present utility model in conjunction with the drawings.

[0034] A pantograph with high safety, as Figures 1-4As shown in the figure, it includes an insulating support 1, a support framework 2 and an elastic part 4. The number of insulating supports 1 is two and they are arranged oppositely. Both of the two insulating supports 1 are installed on the top of the locomotive and are used to play the roles of support and insulation. The support framework 2 is arranged on the top of the two insulating supports 1 and is used to connect and support the two insulating supports 1, and enable an installation platform for installing other equipment to be formed between the two insulating supports 1.

[0035] On the basis of the above embodiment, the elastic part 4 is installed on the top of the support framework 2, and a sliding connection plate 5 is installed on the top of the elastic part 4. The sliding connection plate 5 is an insulating rectangular object, and a cavity is arranged inside the sliding connection plate 5. A contact copper bar 6 is installed on the sliding connection plate 5, and the contact copper bar 6 is overlapped with the contact cable above the locomotive to achieve conduction. A power transmission cable 7 is arranged on the side of the contact copper bar 6, and the power transmission cable 7 is connected to the power supply part of the locomotive. When the contact copper bar 6 is electrified, the current will be led to the energy storage device inside the locomotive along the power transmission cable 7 to achieve charging.

[0036] The elastic part 4 can stretch up and down and apply an upward thrust. The elastic part 4 pushes the contact copper bar 6 to always be in stable contact with the contact cable. When the locomotive track floats, the contact cable will apply a pressure to the contact copper bar 6, and the pressure will cause the elastic part 4 to be compressed and drive the contact copper bar 6 to descend, so as to avoid damaging the cable due to excessive pressure on the contact cable. When the locomotive track sinks, the pressure of the contact cable on the contact copper bar 6 will weaken. At this time, the elastic part 4 will apply a thrust to the sliding connection plate 5 to keep the contact area between the contact copper bar 6 and the contact cable, and avoid an increase in resistance caused by a reduction in the contact area. It has the effect of automatically adjusting the contact pressure between the contact copper bar 6 and the contact cable according to the flatness of the locomotive track.

[0037] As Figure 4 and Figure 5 shown in the figure, the elastic part 4 includes a sliding rod 401. A connection sleeve 402 is sleeved on the outer surface of the lower part of the sliding rod 401, and a mounting plate 404 is arranged on the upper part of the sliding rod 401. When the connection sleeve 402 is fixed, the sliding rod 401 can slide up and down inside the connection sleeve 402.

[0038] The top of the connecting sleeve 402 is provided with a connecting flange 403. The connecting flange 403 is fixed to the top of the protective cover 3 by bolts, thereby supporting and limiting the sliding rod 401. An elastic member 406 sleeved on the outer surface of the sliding rod 401 is arranged between the connecting flange 403 and the mounting plate 404. When the mounting plate 404 is subjected to pressure, the elastic member 406 will be compressed accordingly. When the force on the mounting plate 404 is less than the elasticity of the elastic member 406, the elastic member 406 will push up the mounting plate 404. Therefore, the sliding connecting plate 5 connected to the mounting plate 404 by bolts can adjust its own height according to the pressure received by the contact copper bar 6, improving the stability of the contact between the contact copper bar 6 and the contact cable.

[0039] The connecting sleeve 402 extends into the protective cover 3, so that there is space for the lower end of the sliding rod 401 to move downward. At the same time, the bottom of the sliding rod 401 is provided with a head with a diameter larger than the inner diameter of the connecting sleeve 402 to prevent the sliding rod 401 from detaching from the inside of the connecting sleeve 402. The connecting sleeve 402 is fixed to the top of the protective cover 3 through the cooperation of the connecting flange 403 and bolts. The top of the mounting plate 404 is fixedly connected to the bottom of the sliding connecting plate 5, enabling the sliding rod 401 to support the sliding connecting plate 5 and enabling the sliding connecting plate 5 to change its height with the telescopic movement of the sliding rod 401.

[0040] On the basis of the above embodiment, a connecting frame 405 is arranged on the top of the mounting plate 404. The connecting frame 405 is hinged to the top of the sliding rod 401, and the connecting frame 405 extends into the sliding connecting plate 5. The sliding rod 401 and the connecting frame 405 are installed in a hinged manner, so that the sliding rod 401 and the mounting plate 404 can be disassembled, improving the convenience of maintenance. When the connecting frame 405 is subjected to pressure, the pressure will exert force on the sliding rod 401 through the hinge.

[0041] The diameter of the hole through which the mounting plate 404 and the connecting frame 405 are penetrated by the sliding rod 401 is larger than the diameter of the sliding rod 401. This enables the mounting plate 404 to make a small-angle change around the hinge axis on the outer surface of the sliding rod 401. During the operation of the locomotive, because the connecting frame 405 can swing, the contact copper bar 6 can always be in parallel contact with the contact cable, improving the stability of power reception.

[0042] In one specific embodiment, as Figure 4 shown, the outer surfaces of two insulating support members 1 are sleeved with a protective cover 3. The inner top of the protective cover 3 is connected to the support skeleton 2. The protective cover 3 is used to protect the insulating support members 1 and the support skeleton 2. In rainy days, it can play a certain role in rain shielding, reducing the possibility of rainwater seeping from the connection between the insulating support members 1 and the locomotive.

[0043] In one specific embodiment, as Figure 4 shown, a waterproof box 8 is provided on the side of the sliding connection plate 5, and the contact copper bar 6 and the power transmission cable 7 are connected inside the waterproof box 8. The waterproof box 8 is used to further improve safety and avoid problems such as short circuit, electric leakage, and accelerated corrosion at the connection between the contact copper bar 6 and the power transmission cable 7 when rain, snow, etc. come into contact with the connection during rainy and snowy weather.

[0044] In one specific embodiment, as Figure 4 shown, drag reduction parts 9 are provided on both the front and rear sides of the sliding connection plate 5. The drag reduction parts 9 are streamlined curved surfaces. During the operation of the locomotive, the drag reduction parts 9 can reduce wind resistance to avoid excessive pressure on the elastic part 4 caused by wind resistance. At the same time, after the drag reduction parts 9 are stressed, they will contact the outer surface of the protective cover 3, thereby increasing the support strength for the elastic part 4 and preventing the elastic part 4 from bending, deforming, and reducing its service life.

[0045] Specifically, as shown in Figure 6 , the drag reduction part 9 includes a wind guiding plate 901, and the outer surface of the wind guiding plate 901 is an inclined curved surface. A bent connection bar 902 is provided at the top of the wind guiding plate 901, and the bent connection bar 902 is connected to the side of the sliding connection plate 5 by bolts. Using bolts to connect the wind guiding plate 901 enables the wind guiding plate 901 to be disassembled and assembled as needed. There is a gap between the inner wall of the wind guiding plate 901 and the outer surface of the protective cover 3. When the height of the sliding connection plate 5 changes due to pressure, the gap between the wind guiding plate 901 and the protective cover 3 allows the wind guiding plate 901 to rise and fall with the sliding connection plate 5, avoiding movement interference.

[0046] It should be noted that the wind guiding plate 901 is elastic, and a support foot 903 facing the protective cover 3 is provided at the bottom of the wind guiding plate 901, and the support foot 903 overlaps with the outer surface of the protective cover 3. Setting the support foot 903 to overlap with the outer surface of the protective cover 3 can prevent the wind guiding plate 901 from swinging excessively after being stressed and improve the stability of the elastic part 4. During the lifting and lowering process of the wind guiding plate 901, the support foot 903 will always contact the outer surface of the protective cover 3 due to the elasticity of the wind guiding plate 901 to obtain support, improving the protection ability for the elastic part 4.

[0047] The working process and beneficial effects of the present utility model are as follows: During operation, when the locomotive track floats, the contact cable will exert pressure on the contact copper bar 6, and this pressure will compress the elastic part 4 and drive the contact copper bar 6 to descend, so as to avoid damaging the cable due to excessive pressure on the contact cable. When the locomotive track sinks, the pressure of the contact cable on the contact copper bar 6 will weaken. At this time, the elastic part 4 will exert a thrust on the sliding connecting plate 5 to keep the contact area between the contact copper bar 6 and the contact cable, avoiding an increase in resistance caused by a reduction in the contact area. In this way, the contact pressure between the contact copper bar 6 and the contact cable can be automatically adjusted according to the flatness of the locomotive track.

[0048] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pantograph with high safety, characterized in that: include: Insulating support members (1), two of which are used to be connected to the top of the locomotive; A support frame (2), the support frame (2) being arranged on top of the two insulating support members (1) and being used for connecting and supporting the two insulating support members (1); An elastic part (4), the elastic part (4) is mounted on the top of the support frame (2), a sliding connection plate (5) is mounted on the top of the elastic part (4), a contact copper bar (6) is mounted on the sliding connection plate (5), a power transmission cable (7) is arranged on the side of the contact copper bar (6), the power transmission cable (7) is connected to the power supply part of the locomotive, and the contact copper bar (6) is overlapped with the contact cable above the locomotive to supply power to the locomotive; The elastic part (4) can be extended and retracted up and down and exert a thrust upwards, and the elastic part (4) pushes the contact copper bus (6) to always be in stable contact with the contact cable.

2. A pantograph with high safety according to claim 1, characterized in that: The outer surfaces of the two insulating support members (1) are covered with protective covers (3), and the inner tops of the protective covers (3) are connected to the supporting frame (2).

3. A pantograph with high safety according to claim 2, characterized in that: The elastic part (4) comprises a sliding rod (401), a connecting sleeve (402) is sleeved on the outer surface of the lower part of the sliding rod (401), and a mounting plate (404) is arranged on the upper part of the sliding rod (401); A connecting flange (403) is provided at the top of the connecting sleeve (402), and an elastic member (406) sleeved on the outer surface of the sliding rod (401) is provided between the connecting flange (403) and the mounting plate (404); The connecting sleeve (402) extends to the interior of the protective cover (3), the connecting flange (403) is fixed to the top of the protective cover (3) in cooperation with bolts, and the top of the mounting plate (404) is fixedly connected to the bottom of the sliding connecting plate (5).

4. A pantograph with high safety according to claim 3, characterized in that: A connecting frame (405) is provided on the top of the mounting plate (404), the connecting frame (405) is hinged to the top of the sliding rod (401), and the connecting frame (405) extends to the inside of the sliding connecting plate (5); The diameter of the hole through which the sliding rod (401) penetrates the mounting plate (404) and the connecting frame (405) is larger than the diameter of the sliding rod (401).

5. A pantograph with high safety according to claim 4, characterized in that: A waterproof box (8) is provided on the side of the sliding connection plate (5), and the contact copper bus (6) and the power transmission cable (7) are connected inside the waterproof box (8).

6. A pantograph with high safety according to any one of claims 2 to 5, characterized in that: The front and rear sides of the sliding connection plate (5) are both provided with drag reduction parts (9), and the drag reduction parts (9) are streamlined curved surfaces.

7. A pantograph with high safety according to claim 6, characterized in that: The drag reduction portion (9) comprises an air guide plate (901), a bent connecting strip (902) is provided on the top of the air guide plate (901), and the bent connecting strip (902) is connected to the side of the sliding connecting plate (5) via bolts; A gap is left between the inner wall of the air guide plate (901) and the outer surface of the protective cover (3).

8. A pantograph with high safety according to claim 7, characterized in that: The wind guide plate (901) is elastic, and a supporting foot (903) facing the protective cover (3) is provided at the bottom of the wind guide plate (901), and the supporting foot (903) overlaps the outer surface of the protective cover (3).

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