Split type self-lubricating carbon slide plate

Abstract

The utility model discloses a split type self-lubricating carbon slide plate which comprises a carbon strip assembly, a slide plate bracket assembly, a fixing bolt set and an exhaust assembly, the fixing bolt set is arranged at the bottom of the slide plate bracket assembly and used for fixing the carbon slide plate on a pantograph, and the carbon strip assembly is arranged at the top of the slide plate bracket assembly and used for being connected with a contact net; the carbon strip assembly comprises side carbon strips and a middle carbon strip, the two sides of the middle carbon strip are detachably connected with the side carbon strips respectively and fixed to the sliding plate bracket assembly, an exhaust assembly is arranged in the middle carbon strip and used for achieving automatic pantograph descending, and the side face of the middle carbon strip is filled with a lubricating agent so as to achieve automatic lubrication of the carbon strip. The pantograph sliding plate has the advantages of being compact in structure, convenient to disassemble and assemble, low in cost and the like, has a self-lubricating effect and solves the problems that an existing pantograph sliding plate needs to be replaced integrally after being abraded, and abrasion of the sliding plate is aggravated under the severe working condition.

Description

Technical Field

[0001] The utility model belongs to the technical field of pantograph slide plates for rail transit vehicles, and in particular relates to a split self-lubricating carbon slide plate. Background Art

[0002] The pantograph slide is a key component of rail transit vehicles. It is located on the top of the train pantograph and directly contacts the contact network. It transmits power through sliding contact, provides the required power source for the vehicle, and ensures the safe and efficient operation of the vehicle. Among them, the carbon slide is a key vulnerable component on the pantograph. Due to its frequent contact with the contact network, it wears relatively quickly, so it must be replaced regularly to ensure the normal operation of the train.

[0003] However, due to the characteristics of the line design and the interaction between the pantograph and the contact network, the carbon slide will show an uneven wear pattern during use. Specifically, the wear in the middle area of ​​the carbon slide is more serious, while the edge part is relatively less worn. And under harsh working conditions, due to factors such as mechanical wear, the wear in the middle area of ​​the carbon slide will be further aggravated, and even breakage may occur. This uneven wear pattern means that when replacing the carbon strip, even if the edge part is still usable, it must be replaced as a whole. Because it is impossible to replace only the severely worn middle area, this "one-size-fits-all" replacement method undoubtedly increases unnecessary material and labor costs, significantly increasing the operating costs of the locomotive. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a carbon fiber composite material slide plate with a compact structure, multi-stage, easy to disassemble and self-lubricating effect, in view of the problem that the existing pantograph slide plate needs to be replaced as a whole after being worn, and the slide plate wears more under harsh working conditions. To achieve the above purpose, the utility model can adopt the following technical solutions:

[0005] A split self-lubricating carbon skateboard comprises: a carbon bar assembly, a skateboard bracket assembly, a fixing bolt group, a tightening bolt and an exhaust assembly, wherein the fixing bolt group is arranged at the bottom of the skateboard bracket assembly and is used to fix the carbon skateboard on the pantograph, and the carbon bar assembly is arranged at the top of the skateboard bracket assembly and is used to connect to the contact network; the carbon bar assembly comprises side carbon bars and a middle carbon bar, and the two sides of the middle carbon bar are detachably connected to the side carbon bars and fixed to the skateboard bracket assembly, and an exhaust assembly is arranged inside the middle carbon bar for realizing automatic bow lowering, and the side of the middle carbon bar is filled with lubricant for realizing automatic lubrication of the carbon bar.

[0006] As a further improvement of the utility model, the two side surfaces of the middle carbon bar are symmetrically provided with oblique grooves facing the center of the middle carbon bar, and the openings of the oblique grooves face the connecting surfaces of the side carbon bars. The oblique grooves are filled with lubricant and the openings of the oblique grooves are sealed; when the top of the middle carbon bar is worn to the oblique groove, the lubricant lubricates the middle carbon bar.

[0007] As a further improvement of the present invention, the length of the inclined groove exceeds the carbon slide pull-out value range of 1mm to 3mm.

[0008] As a further improvement of the utility model, a groove is provided at the lower inner side of the middle carbon strip, and an exhaust assembly is provided in the groove.

[0009] As a further improvement of the utility model, the exhaust assembly includes an airway tube and an air nozzle, one end of the airway tube is placed in the groove, and the other end of the airway tube is connected to the air nozzle.

[0010] As a further improvement of the present invention, the skateboard bracket assembly includes an "L"-shaped skateboard bracket and a "T"-shaped skateboard bracket, the "L"-shaped skateboard bracket matches the side carbon bar, the "T"-shaped skateboard bracket matches the middle carbon bar, and the two sides of the "T"-shaped skateboard bracket are respectively overlapped with the "L"-shaped skateboard bracket and fixed by tightening bolts.

[0011] As a further improvement of the present invention, the "L"-shaped skateboard bracket and the "T"-shaped skateboard bracket both adopt a dovetail groove structure, the groove edge and the bottom plate are an integrated structure, and the groove edge is recessed inward by 60° to 80°.

[0012] As a further improvement of the utility model, the groove edge height of the dovetail groove is 1 mm to 2 mm higher than the groove.

[0013] As a further improvement of the utility model, the middle carbon strip is prepared by using a carbon fiber composite material, and the carbon fiber composite material is a continuous porous mesh structure formed by weaving carbon fibers and a copper mesh, and the mesh holes are filled with copper particles.

[0014] As a further improvement of the utility model, conductive adhesive is applied to the connection between the side carbon strip and the middle carbon strip, and to the connection between the "L"-shaped skateboard bracket and the "T"-shaped skateboard bracket.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] The split self-lubricating carbon slide board of the utility model comprises a split carbon strip assembly through a middle carbon strip and a side carbon strip. Especially when the carbon slide board interacts with the contact network, the place where severe wear occurs is the middle carbon strip pull-out position. During maintenance, only the middle carbon strip in the corresponding severely worn area needs to be replaced without replacing the entire carbon strip, thus shortening the replacement cycle and avoiding the waste of carbon slide board materials and labor costs. At the same time, lubricant is filled on the side of the middle carbon strip, which can achieve a self-lubricating effect on the carbon strip pull-out position, thereby effectively reducing the wear of the carbon slide board and extending the service life of the carbon slide board, which is conducive to further reducing maintenance costs. By arranging an exhaust assembly inside the middle carbon strip, the exhaust assembly can be used to realize automatic bow lowering, which can also extend the overall service life of the carbon slide board during train operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure principle of the split self-lubricating carbon slide in a specific embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the side structure principle of the split self-lubricating carbon slide board in a specific embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the bottom surface structure principle of the split self-lubricating carbon slide in a specific embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the main structure principle of a "T"-shaped skateboard bracket in a specific embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the main structure principle of an "L"-shaped skateboard bracket in a specific embodiment of the utility model;

[0022] Figure 6 It is a cross-sectional schematic diagram of the middle carbon strip in a specific embodiment of the utility model;

[0023] Figure 7 It is a cross-sectional schematic diagram of the middle carbon strip in a specific embodiment of the utility model;

[0024] Figure 8 It is a schematic diagram of the pull-out value of the carbon slide in a specific embodiment of the utility model;

[0025] Legend: 1. Carbon bar assembly; 101. Side carbon bar; 102. Middle carbon bar; 103. Bevel groove; 104. Groove; 2. Slide plate bracket assembly; 201. “L” type slide plate bracket; 202. “T” type slide plate bracket; 3. Fixing bolt group; 4. Fastening bolt; 5. Exhaust assembly; 501. Airway tube; 502. Air nozzle. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0027] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 a limitation to the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0029] Example

[0030] like Figures 1 to 8 As shown, the split self-lubricating carbon slide of the utility model comprises: a carbon bar assembly 1, a slide bracket assembly 2, a fixing bolt group 3 and an exhaust assembly 5. The fixing bolt group 3 is arranged at the bottom of the slide bracket assembly 2, and the fixing bolt group 3 is composed of bolts and fixing blocks, so as to fix the carbon slide on the pantograph. The carbon bar assembly 1 is arranged at the top of the slide bracket assembly 2, so as to connect the contact network. The carbon bar assembly 1 comprises a side carbon bar 101 and a middle carbon bar 102, and the two sides of the middle carbon bar 102 are detachably connected to the side carbon bar 101 respectively, and are fixed on the slide bracket assembly 2, and an exhaust assembly 5 is arranged inside the middle carbon bar 102 for realizing automatic bow lowering, and the side of the middle carbon bar 102 is filled with lubricant for realizing automatic lubrication of the carbon bar.

[0031] In this embodiment, the split carbon bar assembly 1 is formed by the middle carbon bar 102 and the side carbon bar 101. In particular, when the carbon slide plate interacts with the contact network, the place where severe wear occurs is the pull-out position of the middle carbon bar 102. When repairing, it is only necessary to replace the middle carbon bar 102 in the corresponding severely worn area, without replacing the entire carbon bar, which shortens the replacement cycle and avoids the waste of carbon slide plate materials and labor costs. At the same time, filling the side of the middle carbon bar 102 with lubricant can have a self-lubricating effect on the pull-out position of the carbon bar, thereby effectively reducing the wear of the carbon slide plate, extending the service life of the carbon slide plate, and helping to further reduce maintenance costs; by setting an exhaust assembly 5 inside the middle carbon bar 102, the exhaust assembly 5 can be used to achieve automatic bow lowering, which can also extend the overall service life of the carbon slide plate during train operation.

[0032] like Figure 7 As shown, both sides of the middle carbon bar 102 are symmetrically provided with oblique grooves 103 facing the center of the middle carbon bar 102, the opening of the oblique grooves 103 faces the connecting surface of the side carbon bar 101, the oblique grooves 103 are filled with lubricant, and the opening of the oblique grooves 103 is sealed by a sealant. When the top of the middle carbon bar 102 is worn to the oblique grooves 103, the lubricant lubricates the middle carbon bar 102. In this embodiment, the lubricant can be paraffin, which has the characteristics of low price and good lubrication effect.

[0033] like Figure 8 As shown in , the pull-out value range of the carbon slide is ±250mm~300mm, and the length of the inclined groove 103 should exceed the pull-out value range of the carbon slide by 1mm~3mm. Under the interaction between the contact network and the carbon slide, after the top of the middle carbon strip 102 wears to the inclined groove 103, the lubricant has a self-lubricating effect on the carbon strip, thereby reducing the wear of the middle carbon strip 102 and further improving the service life of the carbon slide.

[0034] like Figure 7 As shown, a groove 104 is provided at the inner lower part of the middle carbon strip 102 , and an exhaust assembly 5 is provided in the groove 104 .

[0035] like Figure 6 As shown, the exhaust assembly 5 includes an airway pipe 501 and an air nozzle 502. One end of the airway pipe 501 is placed in the groove 104, and the other end of the airway pipe 501 is connected to the air nozzle 502. Specifically, the airway pipe 501 is a copper tube, which has an automatic bow lowering function. This structural design can extend the overall service life of the carbon slide during train operation.

[0036] like Figure 3 , Figure 4 and Figure 5As shown, the skateboard bracket assembly 2 includes an "L"-shaped skateboard bracket 201 and a "T"-shaped skateboard bracket 202. The "L"-shaped skateboard bracket 201 matches the side carbon strip 101, and the "T"-shaped skateboard bracket 202 matches the middle carbon strip 102. The connection position between the "L"-shaped skateboard bracket 201 and the "T"-shaped skateboard bracket 202 is designed to be overlapped, and the two sides of the "T"-shaped skateboard bracket 202 are overlapped with the "L"-shaped skateboard bracket 201 respectively, and fixed by fastening bolts 4. Specifically, the connection between the "L"-shaped skateboard brackets 201 on both sides and the middle "T"-shaped skateboard bracket 202 is overlapped, and corresponding threaded through holes are opened in the middle position of the connection, and they are connected by fastening bolts 4. The skateboard bracket adopts a three-section split structure, which is consistent with the carbon strip structure. The three-section split skateboard brackets are fixedly connected together by fastening bolts 4, which is convenient for the disassembly, assembly and replacement of the three-section split carbon skateboard, further simplifying the maintenance difficulty and reducing the relevant costs.

[0037] like Figure 2 As shown, the slide bracket assembly 2 is made of aluminum alloy, and the structure is set as a dovetail groove structure, which is convenient for enveloping the carbon bar, and a T-shaped support frame is set below the dovetail groove. Specifically, the "L"-shaped slide bracket 201 and the "T"-shaped slide bracket 202 both adopt a dovetail groove structure, the groove edge and the bottom plate are an integrated structure, and the groove edge is recessed inward by 60° to 80° to form a dovetail shape, which plays a role in limiting the carbon bar and preventing the carbon bar from slipping along the direction of the train.

[0038] Furthermore, the groove edge height of the dovetail groove is 1 mm to 2 mm higher than the groove 104 to ensure the maximum travel of the carbon strip wear degree.

[0039] In this embodiment, the skateboard bracket assembly 2 adopts a dovetail groove design, and the groove edge is recessed inward at a certain angle, which can limit the carbon strip assembly 1 and prevent the carbon strip from falling off when the conductive adhesive falls off. At the same time, the carbon strip is also convenient to disassemble and assemble, and it is also easier to replace the worn middle carbon strip 102, and the "T"-shaped skateboard bracket 202 can also be reused, which is equivalent to only replacing the worn carbon strip, and the bonding of the carbon strips on both sides and the skateboard bracket can be reused. In this embodiment, the side carbon strip 101 is made of carbon fiber material or metal-impregnated material; the middle carbon strip 102 is prepared by carbon fiber composite material, and the carbon fiber composite material is a continuous porous mesh structure formed by weaving carbon fiber and copper mesh to improve the conductivity of the overall structure; at the same time, copper particles are filled in the mesh holes to enhance the wear resistance of the material, and optimize the continuity of the woven structure and the density of the material, further improve the conductivity, reduce the wear of the carbon strip, and thus improve the wear resistance of the carbon skateboard.

[0040] In this embodiment, conductive adhesive is applied at the connection between the side carbon strip 101 and the middle carbon strip 102, and then they are sequentially abutted to form an integral skateboard; conductive adhesive is applied at the connection between the "L"-shaped skateboard bracket 201 and the "T"-shaped skateboard bracket 202 to ensure the overall conductive performance of the carbon skateboard.

[0041] like Figure 8 As shown, the adaptive split carbon slide board of this embodiment is only for the pull-out value area of ​​the carbon slide board. When the carbon slide board is worn, the wear of the pull-out value area is generally greater than that of other wear areas, and a downward concave circular groove will be formed at this position. When the pantograph interacts with the contact network, the contact network will be concave downward when it works to the pull-out value position, and mechanical wear will occur with the edge of the pull-out value position when it is swept out, thereby increasing the wear on the slide board and gradually evolving into severe wear. In this embodiment, a split carbon bar assembly 1 and a split dovetail groove structured slide board bracket assembly 2 are used, and the operation of replacing the carbon bar is simple and convenient, which not only ensures the safety of the carbon slide board, but also saves manpower and material resources.

[0042] Although the utility model is disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the utility model without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A split self-lubricating carbon slide plate, characterized in that: include: A carbon bar assembly (1), a slide bracket assembly (2), a fixing bolt assembly (3) and an exhaust assembly (5), wherein the fixing bolt assembly (3) is arranged at the bottom of the slide bracket assembly (2) and is used to fix the carbon slide on the pantograph, and the carbon bar assembly (1) is arranged at the top of the slide bracket assembly (2) and is used to connect to the contact network; the carbon bar assembly (1) comprises a side carbon bar (101) and a middle carbon bar (102), both sides of the middle carbon bar (102) are detachably connected to the side carbon bars (101) and are fixed to the slide bracket assembly (2), and an exhaust assembly (5) is arranged inside the middle carbon bar (102) for realizing automatic pantograph lowering, and a lubricant is filled on the side of the middle carbon bar (102) for realizing automatic lubrication of the carbon bar.

2. The split self-lubricating carbon slide plate according to claim 1, characterized in that: The two side surfaces of the middle carbon bar (102) are symmetrically provided with oblique grooves (103) facing the center of the middle carbon bar (102), the opening of the oblique groove (103) facing the connection surface of the side carbon bar (101), the oblique groove (103) is filled with lubricant, and the opening of the oblique groove (103) is sealed; when the top of the middle carbon bar (102) is worn to the oblique groove (103), the lubricant lubricates the middle carbon bar (102).

3. The split self-lubricating carbon slide plate according to claim 2, characterized in that: The length of the inclined groove (103) exceeds the carbon slide plate pull-out value range of 1 mm to 3 mm.

4. The split self-lubricating carbon slide plate according to claim 2, characterized in that: A groove (104) is provided at the lower inner portion of the middle carbon strip (102), and an exhaust assembly (5) is provided in the groove (104).

5. The split self-lubricating carbon slide plate according to claim 4, characterized in that: The exhaust assembly (5) comprises an airway tube (501) and an air nozzle (502), one end of the airway tube (501) is placed in the groove (104), and the other end of the airway tube (501) is connected to the air nozzle (502).

6. The split self-lubricating carbon slide plate according to claim 4, characterized in that: The skateboard bracket assembly (2) comprises an "L"-shaped skateboard bracket (201) and a "T"-shaped skateboard bracket (202), wherein the "L"-shaped skateboard bracket (201) matches the side carbon bar (101), and the "T"-shaped skateboard bracket (202) matches the middle carbon bar (102), and the two sides of the "T"-shaped skateboard bracket (202) are overlapped with the "L"-shaped skateboard bracket (201) and fixed by fastening bolts (4).

7. The split self-lubricating carbon slide plate according to claim 6, characterized in that: The "L"-shaped skateboard bracket (201) and the "T"-shaped skateboard bracket (202) both adopt a dovetail groove structure, the groove edge and the bottom plate are an integrated structure, and the groove edge is recessed inwardly by 60° to 80°.

8. The split self-lubricating carbon slide plate according to claim 7, characterized in that: The groove edge height of the dovetail groove is 1 mm to 2 mm higher than the groove (104).

9. The split self-lubricating carbon slide plate according to claim 6, characterized in that: The middle carbon strip (102) is prepared from a carbon fiber composite material, wherein the carbon fiber composite material is a continuous porous mesh structure formed by weaving carbon fibers and a copper mesh, and the mesh holes are filled with copper particles.

10. The split self-lubricating carbon slide plate according to claim 6, characterized in that: Conductive adhesive is applied to the connection between the side carbon strip (101) and the middle carbon strip (102), and to the connection between the "L"-shaped slide bracket (201) and the "T"-shaped slide bracket (202).

Images