A pantograph lifting device for a locomotive

Abstract

The utility model discloses a locomotive pantograph ascending device, including base (1), double -layer air bag (2), front support (3), base (1) is sealedly connected with double -layer air bag (2) one side, front support (3) is sealedly connected with the other side of double -layer air bag (2), be equipped with the inflation interface (101) on base (1), double -layer air bag (2) is equipped with limiting part (4). Base (1) includes circular bottom plate one (105), two riser (104), circular pipe (103), square tube (102);Front support (3) includes circular bottom plate two (301), Y type support (302), front beam (303);Limiting part (4) includes limiting rod (401), screw rod (402) etc. Simple structure is convenient for installation, and is equipped with limiting device limit air bag maximum expansion, avoid the risk of ascending arch overtravel caused by overinflation.

Description

Technical Field

[0001] This utility model relates to a pantograph for an electric locomotive, and more particularly to a pantograph raising device for a locomotive. Background Technology

[0002] Currently, the pantograph is a device that provides power to electric locomotives, and the pantograph raising device is a component of the pantograph, providing power for raising and lowering the pantograph.

[0003] Existing bow lifting devices are complex in structure, inconvenient to install, and pose a risk of over-extension due to excessive inflation.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pantograph raising device for locomotives to solve the aforementioned technical problems in the prior art.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] The locomotive pantograph raising device of this utility model includes a base 1, a double-layer airbag 2, and a front bracket 3. The base 1 is sealed to one side of the double-layer airbag 2, and the front bracket 3 is sealed to the other side of the double-layer airbag 2. The base 1 is provided with an inflation port 101, and the double-layer airbag 2 is provided with a limiting component 4.

[0008] Compared with the prior art, the pantograph raising device for locomotives provided by this utility model has a simple structure, is easy to install, and is equipped with a limiting device to limit the maximum inflation of the airbag, thus avoiding the risk of pantograph overtravel due to over-inflation. Attached Figure Description

[0009] Figure 1 Schematic diagram of the pantograph raising device for locomotives provided in this embodiment of the utility model Figure 1 .

[0010] Figure 2 Schematic diagram of the pantograph raising device for locomotives provided in this embodiment of the utility model Figure 2 .

[0011] In the picture:

[0012] 1-Base, 2-Double-layer airbag, 3-Front bracket, 4-Limiting component;

[0013] 101-Inflation connector, 102-Square tube, 103-Round tube, 104-Vertical plate, 105-Circular base plate one;

[0014] 301 - Circular base plate II; 302 - Y-shaped bracket; 303 - Front beam;

[0015] 401 - Limit rod, 402 - Screw. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments, which do not constitute a limitation on the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] First, the following explanations are provided for the terms that may be used in this article:

[0018] The terms "comprising," "including," "containing," "having," or other similar semantic descriptions should be interpreted as non-exclusive inclusion. For example, including a technical feature element (such as raw material, component, ingredient, carrier, dosage form, material, size, part, component, mechanism, device, step, process, method, reaction conditions, processing conditions, parameter, algorithm, signal, data, product or article of manufacture, etc.) should be interpreted as including not only the expressly listed technical feature element, but also other technical feature elements that are not expressly listed and are well-known in the art.

[0019] The term "composed of" excludes any technical features not expressly listed. When used in a claim, it closes the claim to exclude all technical features other than those expressly listed, except for associated conventional impurities. If the term appears only in a clause of a claim, it limits the claim to the elements expressly listed in that clause; elements recited in other clauses are not excluded from the overall claim.

[0020] Unless otherwise explicitly specified or limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this document according to the specific circumstances.

[0021] The contents not described in detail in the embodiments of this utility model are existing technologies known to those skilled in the art. Where specific conditions are not specified in the embodiments of this utility model, they shall be performed according to conventional conditions in the art or conditions recommended by the manufacturer. Reagents or instruments used in the embodiments of this utility model whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0022] The locomotive pantograph raising device of this utility model includes a base 1, a double-layer airbag 2, and a front bracket 3. The base 1 is sealed to one side of the double-layer airbag 2, and the front bracket 3 is sealed to the other side of the double-layer airbag 2. The base 1 is provided with an inflation port 101, and the double-layer airbag 2 is provided with a limiting component 4.

[0023] The base 1 includes a circular base plate 105, two upright plates 104, a circular tube 103, and a square tube 102. The two upright plates 104 are symmetrically welded to the circular base plate 105. The upright plates 104 are provided with circular holes and square holes. The circular tube 103 passes through the circular hole and is welded and fixed. The square tube 102 passes through the square hole and is welded and fixed. The inflation interface 101 is welded and fixed to the circular base plate 105. The two ends of the square tube 102 are provided with two symmetrical slots. The circular base plate 105 is sealed and connected to one side of the double-layer airbag 2.

[0024] The front support 3 includes a circular base plate 301, a Y-shaped support 302, and a front beam 303. One end of the opening of the Y-shaped support 302 is welded to the circular base plate 301, and the other end of the Y-shaped support 302 is welded to the front beam 303. The front beam 303 has two symmetrical slots at both ends. The circular base plate 301 is sealed to the other side of the double-layer airbag 2.

[0025] The limiting component 4 includes a limiting rod 401. The limiting rod 401 has two symmetrical slots at both ends. The limiting rod 401 passes through the open triangular hole area of ​​the Y-shaped bracket 302. The slots at both ends of the limiting rod 401 pass through screws 402 and are fixed to the limiting rod 401 with two nuts respectively. The other ends of the two screws 402 pass through the slots at both ends of the square tube 102 on the base 1 and are fixed to the square tube 102 with two nuts respectively.

[0026] The Y-shaped bracket 302 is made of two opposing bent sheet metal welded together and has multiple arc-shaped weight-reducing holes, and the limiting rod 401 is made of square tube.

[0027] In summary, the pantograph raising device of this embodiment of the invention uses an external air source to inject gas into the double-layered airbags through the inflation port on the base. The gas filling causes the double-layered airbags to inflate. Since both sides are sealed and fixed to the base and the front support respectively, an outward thrust is generated during the expansion process. This thrust is transmitted to the pantograph through the front support, driving the pantograph to complete the raising action. The limiting rod mechanically limits the maximum inflation amount of the airbags, avoiding the risk of over-extension during pantograph raising.

[0028] To more clearly demonstrate the technical solution and effects provided by this utility model, the following detailed description of the embodiments of this utility model is provided with reference to specific examples.

[0029] Example 1

[0030] As shown in the figure:

[0031] It mainly consists of a base, a double-layer airbag, a front bracket, and a limiting rod; the base is sealed to one side of the double-layer airbag, and the front bracket is sealed to the other side of the double-layer airbag; the base is equipped with an inflation port.

[0032] The base mainly consists of a circular base plate, uprights, round tubes, square tubes, and an inflation port. Two uprights are symmetrically welded to the circular base plate. The uprights have round and square holes; the round holes are for welding through the round tubes, and the square holes are for welding through the square tubes. The inflation port is welded to the circular base plate. The square tubes have two symmetrical slots on each side. The front support mainly consists of a circular base plate, a Y-shaped support, and a front beam. One end of the Y-shaped support is welded to the circular base plate, and the other end is welded to the front beam. The Y-shaped support is made of two opposing bent sheet metal sections and has multiple arc-shaped weight-reducing holes. The front beam has two symmetrical slots. The limiting rod is made of square tube and has two symmetrical slots. The main connection method of the lifting device is as follows: the base is sealed to one side of the double-layer airbag, and the front bracket is sealed to the other side of the double-layer airbag. The limiting rod passes through the triangular hole area of ​​the front bracket, and the slots on both sides pass through two screws, each fixed to the limiting rod with two nuts. The other side of the two screws passes through the slots on the square tube of the base, each fixed to the square tube with two nuts. When the double-layer airbag inflates, it drives the front bracket to move. When the circular base plate of the front bracket contacts the limiting rod, it stops moving due to the obstruction of the limiting rod, thus limiting the maximum inflation amount of the airbag.

[0033] The beneficial effects of this utility model's technical solution are:

[0034] This utility model has a simple structure and is easy to install. It is equipped with a limiting device to limit the maximum expansion of the airbag and avoid the risk of excessive arch extension due to over-inflation.

[0035] The key technical points and points to be protected in this utility model are as follows:

[0036] The locomotive pantograph raising device mainly consists of a base, a double-layer airbag, a front support, and a limiting rod. The base is sealed to one side of the double-layer airbag, and the front support is sealed to the other side of the double-layer airbag. The base is equipped with an inflation port. The limiting rod mechanically limits the maximum inflation of the airbag. The base is sealed to one side of the double-layer airbag, and the front support is sealed to the other side of the double-layer airbag. The limiting rod passes through the triangular hole area of ​​the front support, and two screws pass through the slots on both sides, each fixed to the limiting rod with two nuts. The other side of the two screws passes through the slots on the square tube of the base, each fixed to the square tube with two nuts.

[0037] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims. The information disclosed in the background section is intended only to enhance the understanding of the overall background technology of this utility model and should not be construed as an admission or implication in any way that such information constitutes prior art known to those skilled in the art.

Claims

1. A pantograph raising device for locomotives, characterized in that, It includes a base (1), a double-layer airbag (2), and a front bracket (3). The base (1) is sealed to one side of the double-layer airbag (2), and the front bracket (3) is sealed to the other side of the double-layer airbag (2). The base (1) is provided with an inflation port (101), and the double-layer airbag (2) is provided with a limiting component (4).

2. The locomotive pantograph raising device according to claim 1, characterized in that, The base (1) includes a circular base plate (105), two upright plates (104), a round tube (103), and a square tube (102). The two upright plates (104) are symmetrically welded to the circular base plate (105). The upright plates (104) are provided with round holes and square holes. The round tube (103) passes through the round hole and is welded and fixed. The square tube (102) passes through the square hole and is welded and fixed. The inflation interface (101) is welded and fixed to the circular base plate (105). The two ends of the square tube (102) are provided with two symmetrical slots. The circular base plate (105) is sealed and connected to one side of the double-layer airbag (2).

3. The locomotive pantograph raising device according to claim 2, characterized in that, The front support (3) includes a circular base plate (301), a Y-shaped support (302), and a front beam (303). One end of the opening of the Y-shaped support (302) is welded to the circular base plate (301), and the other end of the Y-shaped support (302) is welded to the front beam (303). The front beam (303) has two symmetrical slots at both ends. The circular base plate (301) is sealed to the other side of the double-layer airbag (2).

4. The locomotive pantograph raising device according to claim 3, characterized in that, The limiting component (4) includes a limiting rod (401). The limiting rod (401) has two symmetrical slots at both ends. The limiting rod (401) passes through the open triangular hole area of ​​the Y-shaped bracket (302). The slots at both ends of the limiting rod (401) pass through the screws (402) and are fixed to the limiting rod (401) with two nuts respectively. The other ends of the two screws (402) pass through the slots at both ends of the square tube (102) on the base (1) and are fixed to the square tube (102) with two nuts respectively.

5. The locomotive pantograph raising device according to claim 4, characterized in that, The Y-shaped bracket (302) is made of two opposing bent sheet metal welded together and has multiple arc-shaped weight-reducing holes. The limiting rod (401) is made of square tube.

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