Automatic dipping equipment for high-speed rail pantograph slide plate material

Abstract

The invention discloses automatic dipping equipment for a high-speed rail pantograph slide plate material, and relates to the technical field of dipping equipment, the automatic dipping equipment comprises a dipping furnace, a furnace cover, a material loading vehicle, a crucible, a backflow assembly, a lifting assembly, a cover plate, a material extrusion assembly, a fixed disc, a deformable body and a second material cavity inner wall, and the upper surface of the fixed disc and the wall surface of the deformable body define a turbulent flow cavity; an overflow opening is formed in the top of the deformable body, a plurality of deformation joints penetrating through the overflow opening are formed in the periphery of the deformable body, and the overflow opening is communicated with the backflow assembly. According to the asphalt mixing device, the sliding plate is placed in the second material cavity, asphalt liquid in the first material cavity and the second material cavity is extruded by the material extruding assembly, the asphalt liquid enters the backflow assembly through the overflow opening, meanwhile, the asphalt liquid generates turbulent flow in the turbulent flow cavity, and under the influence of the turbulent flow, the fluidity of the asphalt liquid is good; and the downward face of the pantograph slide plate can be impacted, so that the asphalt liquid flows on the downward face of the pantograph slide plate, and then the dipping efficiency of the pantograph slide plate is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of impregnation equipment, and particularly to an automatic impregnation equipment for high-speed rail pantograph slider materials. Background Art

[0002] A pantograph is an electrical device that obtains electrical energy from an overhead contact line and is installed on the roof of a locomotive or multiple unit. Pantographs can be divided into single-arm pantographs and double-arm pantographs, both of which are composed of components such as a slider, an upper frame, a lower arm rod (a lower frame for a double-arm pantograph), a chassis, a lifting spring, a transmission cylinder, and a support insulator. The diamond pantograph, also known as the diamond-shaped pantograph, was very common in the past, but it has gradually been phased out due to high maintenance costs and the risk of breaking the overhead contact line during a fault. In recent years, single-arm pantographs have been widely used (see the figure). The smoothness of the load current passing through the contact surface between the contact line and the pantograph slider is related to the contact pressure, transition resistance, and contact area between the slider and the contact line, and depends on the interaction between the pantograph and the overhead contact line. Asphalt impregnation is an important densification treatment technology in the production of carbon materials. Its purpose is to reduce the porosity in carbon products, thereby improving the mechanical strength, electrical conductivity, and corrosion resistance of the materials. Carbon materials (such as pantograph carbon sliders) usually have a large number of pores, which will reduce the mechanical strength of the materials, increase the resistivity, and affect their stability in high-temperature environments. By impregnating with asphalt, these pores can be filled, making the materials more dense and thus improving their overall performance. The asphalt impregnation technology can significantly improve the following properties of the carbon slider: Improve mechanical strength: After the asphalt fills the pores, the material becomes more dense, and the impact resistance and wear resistance are significantly enhanced. Reduce resistivity: The reduction of pores and the densification of the material improve the electrical conductivity and reduce power loss. Improve high-temperature resistance: The material after asphalt impregnation is more stable in high-temperature environments, and the oxidation rate slows down. Enhance self-lubrication: Asphalt itself has a certain lubricating effect, which can reduce the friction between the carbon slider and the overhead contact line.

[0003] In the prior art, when using an impregnation device to impregnate the slider with asphalt, pressure needs to be applied to make the asphalt enter the pores of the slider. Currently, the pressure is mainly applied to the asphalt by means of gas pressure. Since the gas applies pressure to the asphalt liquid surface when pressurizing the asphalt, the fluidity of the asphalt is poor during pressurization, and the asphalt hardly flows on the surface of the slider. This may lead to poor impregnation effect at local positions of the slider, resulting in uneven asphalt impregnation. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic impregnation equipment for high-speed rail pantograph slider materials to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: An automatic impregnation device for a pantograph slider material of high-speed rail, including an impregnation furnace and a furnace cover hinged to one side of the impregnation furnace. A loading cart is arranged in the impregnation furnace, and further includes: A crucible placed on the loading cart. The crucible is successively provided with a first material cavity and a second material cavity that communicate with each other from top to bottom. The inner diameter of the second material cavity decreases successively from top to bottom. A reflux assembly is arranged in the crucible; A lifting assembly arranged on the inner wall of the impregnation furnace. The lifting assembly is drivingly connected with a cover plate, and the cover plate is provided with a squeezing assembly; A fixed disk fixedly connected to the lower inner wall of the second material cavity. The fixed disk is coaxially fixedly connected with a deformable body. The outer diameter of the deformable body increases successively from top to bottom. A turbulent flow cavity is formed by the inner wall of the second material cavity, the upper surface of the fixed disk and the wall surface of the deformable body. An overflow port is opened at the top of the deformable body, and a plurality of deformation seams penetrating the overflow port are opened on the periphery of the deformable body. The overflow port communicates with the reflux assembly.

[0006] Through the above technical solution, the slider is placed in the second material cavity, and the squeezing assembly squeezes the asphalt liquid in the first material cavity and the second material cavity. The asphalt liquid will enter the reflux assembly from the overflow port, and at the same time, the asphalt liquid will generate turbulent flow in the turbulent flow cavity. Under the influence of the turbulent flow, the asphalt liquid has good fluidity and can impact the lower surface of the pantograph slider, so that the asphalt liquid flows on the lower surface of the pantograph slider, thereby improving the impregnation efficiency of the pantograph slider.

[0007] Further, the reflux assembly includes a communication cavity opened in the impregnation furnace. The communication cavity communicates with the second material cavity. A first reflux hole, a second reflux hole and a third reflux hole that are successively communicated from beginning to end are opened in the impregnation furnace. The first reflux hole communicates with the communication cavity, and the third reflux hole communicates with the first material cavity.

[0008] Through the above technical solution, the asphalt liquid enters the communication cavity from the overflow port, and then flows back to the first material cavity successively through the first reflux hole, the second reflux hole and the third reflux hole. On the one hand, it enables the asphalt to flow in the crucible, so that the flowing asphalt can fully contact the surface of the pantograph slider, improving the contact between the asphalt and the pores of the pantograph slider. On the other hand, the asphalt flows back into the first material cavity, enabling it to re-enter the second material cavity to impregnate the pantograph slider.

[0009] Further, an asphalt discharge pipe is arranged on the outer wall surface of the crucible. The asphalt discharge pipe communicates with the first reflux hole, and a quick connector is installed at the opening.

[0010] Through the above technical solution, after the impregnation is completed, the asphalt in the crucible can be discharged into the external asphalt collection pipeline through the asphalt discharge pipe.

[0011] Further, the material extrusion assembly includes a motor installed on the top of the cover plate. The motor is drivingly connected to a driving shaft extending downward. A sliding sleeve is slidably sleeved on the periphery of the driving shaft. The sliding sleeve is key-connected to the driving shaft. A spiral auger is fixedly sleeved on the periphery of the sliding sleeve. The nominal diameter of the spiral auger matches the inner diameter of the first material cavity. The cover plate is provided with a floating unit, which is used to drive the sliding sleeve to move vertically when the deformable body elastically contracts in place, so as to adjust the longitudinal distance between the spiral auger and the second material cavity.

[0012] Through the above technical solution, the motor rotates, causing the driving shaft to rotate. When the driving shaft rotates, since the sliding sleeve and the driving shaft are key-connected, the sliding sleeve can be driven to rotate, and the spiral auger can squeeze the asphalt in the first material cavity, and then squeeze the asphalt into the second material cavity, thereby realizing pressurization of the asphalt.

[0013] Further, the floating unit includes an adjusting cylinder vertically installed on the cover plate. The upper end of the sliding sleeve is rotatably sleeved with a floating plate, and the floating plate is drivingly connected to the adjusting cylinder.

[0014] Through the above technical solution, the adjusting cylinder drives the floating plate to move up and down, causing the floating plate to drive the sliding sleeve to move vertically on the driving shaft, and then increasing the longitudinal distance between the spiral auger and the second material cavity, so that the extrusion force of the spiral auger on the asphalt in the second material cavity decreases, avoiding excessive extrusion force of the spiral auger on the asphalt in the second material cavity.

[0015] Further, the lifting assembly includes a lifting cylinder vertically installed on the inner wall of the impregnation furnace. The lifting cylinder is drivingly connected to the cover plate.

[0016] Through the above technical solution, the telescopic movement of the cylinder rod of the lifting cylinder drives the cover plate to move up and down, so that the cover plate can move downward to seal the mouth of the crucible.

[0017] Further, an annular protrusion is fixedly connected to the inner wall of the second material cavity, and the annular protrusion is located above the deformable body.

[0018] Through the above technical solution, the two ends of the pantograph slide plate are placed on the upper end surface of the annular protrusion, and then the pantograph slide plate can be horizontally placed in the second material cavity to provide a certain degree of limitation for the pantograph slide plate.

[0019] Further, the cover plate is provided with an asphalt feed pipe, and a control valve is installed on the asphalt feed pipe.

[0020] Through the above technical solution, the external asphalt conveying system can convey asphalt into the first material cavity through the asphalt feed pipe, and the control valve can disconnect the connection state between the asphalt feed pipe and the external asphalt conveying system.

[0021] Furthermore, a fixed plug is coaxially fixedly installed in the connecting cavity, the fixed plug is located above the first return hole, and a plurality of connecting grooves are provided on the end face of the fixed plug; a sliding plug is coaxially slidably installed in the connecting cavity, the sliding plug is located above the fixed plug, and a connecting hole is provided on the end face of the sliding plug, the connecting hole and the connecting groove are staggered, and a connecting unit is provided between the deformable body and the sliding plug, so that when the deformable body is elastically deformed, the sliding plug is driven to move vertically.

[0022] Through the above technical scheme, when the asphalt in the second material chamber is subjected to a greater pressure and the impregnation process begins to maintain pressure, the asphalt will generate an extrusion force on the periphery of the deformable body, causing the deformable body to undergo elastic contraction deformation, thereby triggering the connection unit to move and drive the sliding plug to move in the direction of the fixed plug, so that the end face of the sliding plug and the end face of the fixed plug are abutted against each other. After the abutment, the asphalt in the second material chamber will not flow back to the first material chamber, thereby helping to maintain the pressure of the asphalt in the second material chamber and achieve pressure maintenance during the asphalt impregnation process, so as to improve the efficiency of the asphalt entering the pores of the pantograph slide plate.

[0023] Furthermore, the connection unit includes a plurality of hinge rods hinged to the end surface of the sliding plug, and the upper ends of the hinge rods are hinged to the inner walls of the plurality of elastic petals into which the deformable body is divided by a plurality of deformation seams.

[0024] Through the above technical solution, when the deformable body undergoes elastic contraction or elastic expansion, the hinge rod will drive the sliding plug to move, so that the sliding plug can move relative to the fixed plug.

[0025] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the slide plate is placed in the second material cavity, and the extrusion component squeezes the asphalt liquid in the first material cavity and the second material cavity, and the asphalt liquid enters the reflux component from the overflow port, and at the same time, the asphalt liquid generates turbulence in the turbulent cavity. Under the influence of the turbulence, the asphalt liquid has good fluidity and can impact the downward side of the pantograph slide plate, so that the asphalt liquid flows on the downward side of the pantograph slide plate, thereby improving the impregnation efficiency of the pantograph slide plate; 2. In the present invention, the asphalt liquid enters the connecting cavity from the overflow port, and then flows back to the first material cavity through the first reflux hole, the second reflux hole and the third reflux hole in sequence. On the one hand, the asphalt can flow in the crucible so that the flowing asphalt can fully contact the surface of the pantograph slide plate, thereby improving the contact between the asphalt and the pores of the pantograph slide plate. On the other hand, the asphalt flows back into the first material cavity so that it can re-enter the second material cavity to perform an impregnation treatment on the pantograph slide plate. 3. In the present invention, when the pressure on the asphalt in the second material chamber is relatively high and the pressure holding for the impregnation process starts, the asphalt will exert a squeezing pressure on the periphery of the deformable body, causing the deformable body to undergo elastic shrinkage deformation. As a result, the connection unit is triggered to act and can drive the sliding plug to move towards the fixed plug, making the end face of the sliding plug and the end face of the fixed plug abut against each other. After abutting, the asphalt in the second material chamber will not flow back to the first material chamber, which helps to maintain the pressure of the asphalt in the second material chamber and achieve pressure holding in the asphalt impregnation process, so as to improve the efficiency of asphalt entering the pores of the pantograph slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an automatic impregnation device for a pantograph slide material in the present invention; Figure 2 is Figure 1 a schematic diagram of the positional relationship from another perspective in; Figure 3 is Figure 1 a schematic diagram of the positional relationship after omitting the impregnation furnace and the furnace cover in; Figure 4 is Figure 3 a schematic diagram of the positional relationship after partially cutting open the structure in; Figure 5 is Figure 4 a schematic diagram of the positional relationship from another perspective in; Figure 6 is Figure 5 an enlarged schematic diagram of the partial structure at A in; Figure 7 is a schematic diagram of the sectional structure after the crucible and the deformable body are assembled in the present invention; Figure 8 is Figure 7 an enlarged schematic diagram of the partial structure at B in; Figure 9 is a schematic diagram of the positional relationship after the fixed disk and the deformable body are assembled in the present invention; Figure 10 is Figure 9 a schematic diagram of the positional relationship from another perspective in.

[0027] In the figure, the reference numerals in each figure are explained as follows: 1. furnace cover; 2. dipping furnace; 3. vacuum extraction port; 4. material-carrying vehicle; 5. crucible; 6. cover plate; 7. motor; 8. lifting cylinder; 9. adjusting cylinder; 10. limit block; 11. asphalt discharge pipe; 12. quick connector; 13. floating plate; 14. control valve; 15. fixed disk; 16. first reflux hole; 17. second reflux hole; 18. screw auger; 19. third reflux hole; 20. sliding sleeve; 21. drive shaft; 22. first material chamber; 23. second material chamber; 24. sliding plug; 25. fixed plug; 26. annular protrusion; 27. deformation joint; 28. deformable body; 29. turbulent chamber; 30. hinge rod; 31. communication chamber; 32. communication hole; 33. communication groove; 34. overflow port. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 - 10 , the present invention provides a technical solution: an automatic dipping device for a pantograph slide material of high-speed rail, including a dipping furnace 2 and a furnace cover 1 hinged to one side of the dipping furnace 2. A hydraulic driving device (not shown in the figure) is installed on the dipping furnace 2, and the hydraulic driving device is used to drive the furnace cover 1 to rotate so that the furnace cover 1 can close the mouth of the dipping furnace 2. An annular pipeline is installed in the dipping furnace 2, and heat-conducting oil flows in the annular pipeline, so as to heat the inner cavity of the dipping furnace 2. Two guide rails are welded on the inner wall of the dipping furnace 2, and a material-carrying vehicle 4 is arranged on the two guide rails. The material-carrying vehicle 4 can move on the guide rails and move towards the inner side of the dipping furnace 2. A vacuum extraction port 3 is also arranged at the top of the dipping furnace 2, and the vacuum extraction port 3 is connected to an external vacuum extraction system through a pipeline; A crucible 5 is placed on the material-carrying vehicle 4. A plurality of limit blocks 10 are fixedly connected to the top surface of the material-carrying vehicle 4 in an array along the center line of the material-carrying vehicle 4. A clamping cavity is formed between the plurality of limit blocks 10. The crucible 5 is placed in the clamping cavity and is limited by the limit blocks 10. The crucible 5 is successively provided with a first material chamber 22 and a second material chamber 23 that communicate with each other from top to bottom. The inner diameter of the second material chamber 23 decreases successively from top to bottom. A communication chamber 31 is opened in the dipping furnace 2, and the communication chamber 31 communicates with the second material chamber 23. A first reflux hole 16, a second reflux hole 17 and a third reflux hole 19 that are successively connected end to end are opened in the dipping furnace 2. The first reflux hole 16 communicates with the communication chamber 31, and the third reflux hole 19 communicates with the first material chamber 22. An annular protrusion 26 is fixedly connected to the inner wall of the second material chamber 23, and the annular protrusion 26 is located above the deformable body 28; A fixed plate 15 is coaxially fixed to the inner wall of the lower side of the second material chamber 23, and a deformable body 28 is coaxially fixed to the fixed plate 15. The outer diameter of the deformable body 28 increases from top to bottom. The inner wall of the second material chamber 23, the upper surface of the fixed plate 15 and the wall of the deformable body 28 form a turbulent chamber 29. An overflow port 34 is provided on the top of the deformable body 28. A plurality of deformation seams 27 penetrating the overflow port 34 are provided on the periphery of the deformable body 28. The overflow port 34 is connected to the reflux component. An asphalt discharge pipe 11 is provided on the outer wall of the crucible 5. The asphalt discharge pipe 11 is connected to the first reflux hole 16, and a quick connector 12 is installed at the mouth. When the loading vehicle 4 moves into the impregnation furnace 2, the quick connector 12 is connected to the external asphalt collection pipeline, so that the asphalt discharge pipe 11 is connected to the external asphalt collection pipeline. In addition, an electromagnetic valve is installed on the external asphalt collection pipeline, and the electromagnetic valve is used to control the connection state between the external asphalt collection pipeline and the asphalt discharge pipe 11. A lifting cylinder 8 is vertically installed on the top wall of the inner cavity of the impregnation furnace 2. The number of lifting cylinders 8 can be arranged in groups of two. The cylinder rods of the lifting cylinders 8 are commonly fixed with a cover plate 6. The cover plate 6 is provided with an asphalt feed pipe. The asphalt feed pipe is installed with a control valve 14. The asphalt feed pipe is connected to an external asphalt conveying system through a pipeline. The asphalt conveying system can convey asphalt liquid to the first material cavity 22 through the asphalt feed pipe. A motor 7 is installed on the top of the cover plate 6. The motor 7 is driven and connected to a driving shaft 21 extending downward. The driving shaft 21 is slidably covered with a sliding sleeve 20 at its periphery. The sliding sleeve 20 is key-connected to the driving shaft 21. A spiral auger 18 is fixedly sleeved on the periphery of the sliding sleeve 20. The nominal diameter of the spiral auger 18 matches the inner diameter of the first material cavity 22. An adjusting cylinder 9 is vertically mounted on the cover plate 6, and a floating plate 13 is rotatably sleeved on the upper end of the sliding sleeve 20. The floating plate 13 is drivingly connected to the adjusting cylinder 9, and the cylinder rod of the adjusting cylinder 9 is extended and retracted, thereby driving the floating plate 13 to move up and down.

[0030] A fixed plug 25 is coaxially fixedly installed in the connecting cavity 31, and the fixed plug 25 is located above the first return hole 16. A plurality of connecting grooves 33 are provided on the end face of the fixed plug 25. A sliding plug 24 is coaxially slidably installed in the connecting cavity 31, and the sliding plug 24 is located above the fixed plug 25. A connecting hole 32 is provided on the end face of the sliding plug 24. The connecting hole 32 and the connecting groove 33 are staggered, and when the end faces of the fixed plug 25 and the sliding plug 24 abut against each other, the abutting surfaces of the two have a sealing effect. A plurality of hinge rods 30 are hinged on the end face of the sliding plug 24, and the upper ends of the hinge rods 30 are hinged on the inner walls of the plurality of elastic petal bodies into which the deformable body 28 is divided by a plurality of deformation seams 27.

[0031] The working principle of this embodiment: Place the pantograph slider on the upper end face of the annular protrusion 26 of the crucible 5. The two ends of the pantograph slider are placed on the annular protrusion 26 so that the pantograph slider can be placed in the second material cavity 23. The material carrier 4 moves on the guide rail and enters the inside of the impregnation furnace 2. After moving into place, connect the quick connector 12 to the external asphalt collection pipeline. At the same time, the solenoid valve on the asphalt collection pipeline is in the off state, that is, the asphalt collection pipeline is disconnected from the first return hole 16. Additionally, at this time, the cover plate 6 is located directly above the crucible 5. Start the external hydraulic drive device, and the hydraulic drive device drives the furnace cover 1 to rotate, so that the furnace cover 1 closes the opening of the impregnation furnace 2. Then start the external vacuum pumping system, and evacuate the inner cavity of the impregnation furnace 2 through the vacuum pumping port 3. At this time, the air in the pores on the surface of the pantograph slider will be pumped out; Start the lifting cylinder 8, and the cylinder rod of the lifting cylinder 8 extends to drive the cover plate 6 to move downward, so that the cover plate 6 covers the opening of the crucible 5. The external asphalt delivery system delivers the high-temperature softened asphalt to the asphalt feed pipe, and then enters the first material cavity 22. Start the motor 7, and the motor shaft of the motor 7 rotates and drives the drive shaft 21 to rotate. The drive shaft 21 is key-connected to the sliding sleeve 20, so the sliding sleeve 20 will be synchronously driven to rotate. When the sliding sleeve 20 rotates, it will cause the spiral auger 18 to rotate. The spiral auger 18 squeezes and delivers the asphalt in the first material cavity 22 to the second material cavity 23. When the second material cavity 23 is filled with asphalt, the spiral auger 18 continues to rotate, so that the pressure of the asphalt in the second material cavity 23 increased by the squeezing force of the spiral auger 18. The asphalt will enter the communication cavity 31 from the overflow port 34 of the deformable body 28, and then sequentially enter the first return hole 16 through the communication hole 32 and the communication groove 33, and then return to the first material cavity 22 from the first return hole 16, the second return hole 17, and the third return hole 19, causing the asphalt to flow. During the flow process, the asphalt can flow on the surface of the pantograph slider, increasing the contact probability between the asphalt and the pores on the surface of the pantograph slider, so that the asphalt can fully enter the pores; Due to the flow of asphalt, part of the asphalt enters the turbulent cavity 29 along the inner wall of the second material cavity 23. The asphalt flows upward along the inner wall of the turbulent cavity 29 and impacts the downward-facing surface of the pantograph slider. This enables the downward-facing surface of the pantograph slider to come into relatively full contact with the asphalt. During the pressurized flow of the asphalt, since the upward-facing surface of the pantograph slider is in relatively full contact with the flowing asphalt compared to the downward-facing surface, in this embodiment, by providing the turbulent cavity 29, the asphalt can impact the downward-facing surface of the pantograph slider along the inner walls of the second material cavity 23 and the turbulent cavity 29, ensuring that the flowing asphalt comes into full contact with the downward-facing surface of the pantograph. At this time, during the pressurized conveying process of the asphalt, the extrusion force exerted by the spiral auger 18 on the asphalt in the second material cavity 23 is relatively small, and the pressure exerted on the deformable body 28 by the asphalt sliding from the inner wall of the second material cavity 23 to the inner wall of the turbulent cavity 29 is small, causing the deformable body 28 to be in an elastically expanded deformation state at this time, and the orifice of the overflow port 34 is in a flared state. The asphalt in the second material cavity 23 will enter the communication cavity 31 through the overflow port 34. At this time, the fixed plug 25 and the sliding plug 24 move relatively away from each other, and the end faces of the two are separated from the abutting state, allowing the asphalt to enter the first return hole 16 through the communication hole 32 of the sliding plug 24 and the communication groove 33 of the fixed plug 25, and then flow back to the first material cavity 22 through the first return hole 16, the second return hole 17, and the third return hole 19 in sequence; When performing pressure-holding impregnation, the rotational speed of the motor 7 increases, causing the rotational speed of the drive shaft 21 to increase. Since the asphalt is in a softened fluid state, the extrusion pressure of the spiral auger 18 on the asphalt in the second material chamber 23 increases, and the extrusion pressure of the asphalt on the periphery of the deformable body 28 increases, causing the deformable body 28 to start to produce elastic shrinkage deformation. The orifice of the overflow port 34 shrinks, reducing the rate at which the asphalt in the second material chamber 23 flows back to the first return hole 16. This causes the pressure of the asphalt in the second material chamber 23 to become larger and larger, enabling the asphalt to fully enter the pores on the surface of the pantograph slider under a large pressure. At the same time, it can also keep the asphalt in a certain slow-flowing state, preventing the asphalt from solidifying on the surface of the pantograph slider and affecting the infiltration of the asphalt into the pores on the surface of the pantograph slider. Since when the rotational speed of the spiral auger 18 reaches a certain range, the extrusion pressure on the asphalt will not change significantly, a pressure-holding effect on the asphalt will be achieved at this time. Additionally, further, a hydraulic sensor can be provided in the crucible 5 (the hydraulic sensor is used to detect liquid pressure, which is a structure of the prior art and will not be elaborated here). The hydraulic sensor collects the asphalt pressure in the second material chamber 23. When the pressure exceeds the threshold, the regulating cylinder 9 is activated. The regulating cylinder 9 drives the floating plate 13 to move upward, causing the floating plate 13 to drive the sliding sleeve 20 to move upward, and further increasing the longitudinal distance between the spiral auger 18 and the second material chamber 23. Since the longitudinal distance between the spiral auger 18 and the second material chamber 23 increases, the extrusion pressure of the spiral auger 18 on the asphalt in the second material chamber 23 decreases, causing the pressure on the asphalt in the second material chamber 23 to decrease by a relatively small amount, avoiding affecting the impregnation effect of the asphalt and also preventing the pressure on the asphalt from being too large, which may cause bubbles to form in the pores on the surface of the pantograph slider. These bubbles will reduce the density and uniformity of the pores on the surface of the pantograph slider, and at the same time, excessive pressure may cause the asphalt to be unevenly distributed in the pores on the surface of the pantograph slider; After reaching the predetermined impregnation time, the impregnation ends. The solenoid valve on the external asphalt collection pipeline is opened, allowing the asphalt in the crucible 5 to enter the asphalt collection pipeline. Then, through the vacuum extraction port 3, the pressure in the impregnation furnace 2 is relieved. After the pressure relief is completed, the lifting cylinder 8 resets, causing the cover plate 6 to move upward and reset. Then, the loading vehicle 4 moves in the direction outside the mouth of the impregnation furnace 2, facilitating the staff to open the furnace cover 1 to take out the pantograph slider in the crucible 5.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic impregnation device for the pantograph slide material of high-speed rail, comprising an impregnation furnace (2) and a furnace cover (1) hinged to one side of the impregnation furnace (2), wherein a loading cart (4) is arranged in the impregnation furnace (2), and it is characterized in that, It further includes: A crucible (5) placed on the material carrier vehicle (4). The crucible (5) is successively provided with a first material cavity (22) and a second material cavity (23) that communicate with each other from top to bottom. The inner diameter of the second material cavity (23) gradually decreases from top to bottom. A reflux component is provided in the crucible (5). A lifting component provided on the inner wall of the impregnation furnace (2). The lifting component is drivingly connected to a cover plate (6), and the cover plate (6) is provided with a material squeezing component. A fixed disk (15) fixedly connected to the lower inner wall of the second material cavity (23). The fixed disk (15) is coaxially fixedly connected with a deformable body (28). The outer diameter of the deformable body (28) gradually increases from top to bottom. A turbulent flow cavity (29) is formed by the inner wall of the second material cavity (23), the upper surface of the fixed disk (15), and the wall surface of the deformable body (28). An overflow port (34) is opened at the top of the deformable body (28). A plurality of deformation seams (27) penetrating the overflow port (34) are opened on the periphery of the deformable body (28). The overflow port (34) communicates with the reflux component.

2. An automatic impregnation device for a pantograph slider material of high-speed railway, characterized in that, The reflux component includes a communication cavity (31) opened in the impregnation furnace (2). The communication cavity (31) communicates with the second material cavity (23). A first reflux hole (16), a second reflux hole (17), and a third reflux hole (19) that are successively communicated end to end are opened in the impregnation furnace (2). The first reflux hole (16) communicates with the communication cavity (31), and the third reflux hole (19) communicates with the first material cavity (22).

3. An automatic impregnation device for the pantograph slider material of high-speed railways, according to claim 2, characterized in that, An asphalt discharge pipe (11) is provided on the outer wall surface of the crucible (5). The asphalt discharge pipe (11) communicates with the first reflux hole (16), and a quick connector (12) is installed at the opening.

4. An automatic impregnation device for the pantograph slider material of high-speed railways, characterized in that, The material squeezing component includes a motor (7) installed on the top of the cover plate (6). The motor (7) is drivingly connected to a driving shaft (21) extending downward. A sliding sleeve (20) is slidably sleeved on the periphery of the driving shaft (21). The sliding sleeve (20) is key-connected to the driving shaft (21). A spiral auger (18) is fixedly sleeved on the periphery of the sliding sleeve (20). The nominal diameter of the spiral auger (18) matches the inner diameter of the first material cavity (22). The cover plate (6) is provided with a floating unit, and the floating unit is used to drive the sliding sleeve (20) to move vertically when the deformable body (28) elastically contracts in place, so as to adjust the longitudinal distance between the spiral auger (18) and the second material cavity (23).

5. An automatic impregnation device for a pantograph slider material of a high-speed rail, characterized in that, The floating unit includes an adjusting cylinder (9) vertically installed on the cover plate (6). The upper end of the sliding sleeve (20) is rotatably sleeved with a floating plate (13), and the floating plate (13) is drivingly connected to the adjusting cylinder (9).

6. An automatic impregnation device for the pantograph slider material of high-speed rail, characterized in that, The lifting component includes a lifting cylinder (8) vertically installed on the inner wall of the impregnation furnace (2). The lifting cylinder (8) is drivingly connected to the cover plate (6).

7. An automatic impregnation device for the pantograph slider material of high-speed rail, according to claim 1, characterized in that, An annular protrusion (26) is fixedly connected to the inner wall of the second material cavity (23). The annular protrusion (26) is located above the deformable body (28).

8. An automated impregnation device for a pantograph slider material of high-speed rail, characterized in that, The cover plate (6) is provided with an asphalt feed pipe, and a control valve (14) is installed on the asphalt feed pipe.

9. An automated impregnation device for the pantograph slide material of high-speed rail, according to claim 1, characterized in that, A fixed plug (25) is coaxially fixedly mounted in the communication cavity (31), the fixed plug (25) is located above the first return hole (16), and a plurality of connecting grooves (33) are provided on the end surface of the fixed plug (25). A sliding plug (24) is coaxially slidably mounted in the communication cavity (31), the sliding plug (24) is located above the fixed plug (25), and a connecting hole (32) is provided on the end surface of the sliding plug (24), the connecting hole (32) and the connecting groove (33) are staggered, and a connecting unit is provided between the deformable body (28) and the sliding plug (24), so that when the deformable body (28) is elastically deformed, the sliding plug (24) is driven to move vertically.

10. An automated impregnation device for the pantograph slider material of high-speed rail, according to claim 9, characterized in that, The connection unit comprises a plurality of hinge rods (30) hinged to the end surface of the sliding plug (24), and the upper ends of the hinge rods (30) are hinged to the inner walls of a plurality of elastic petals divided by a plurality of deformation seams (27) of the deformation body (28).

Images