Turnout automatic lubrication system

Abstract

The present invention discloses an automatic lubrication system for a turnout, which is mainly composed of a pump station, a slide bed, an oil pipe 3, an oil pipe 4, an oil pipe 5, a single-line distributor, a first connecting rod, a sleeper, a point rail, a basic rail, a wheel pressure pump, and a diverter. The point rail and the basic rail are both installed at the left and right ends of the sleeper; the slide bed is fixedly installed on the inner side of the basic rail, and the point rail is placed on the slide bed; the first connecting rod connects the two point rails to ensure that the point rails move left and right synchronously, and the first connecting rod is connected to the switch machine. The present invention adopts a non-energy method for lubrication, which has no effect on the turnout signal equipment; the diverter controls the flow direction of the oil channel, and the pressure oil can only be pressed outward and cannot flow back, and the other two oil ports are connected; the grease enters between the bottom of the point rail and the slide bed through the oil groove on the slide bed to complete the oil filling process; the metering is accurate.

Description

Technical Field

[0001] The invention relates to the technical field of railway driving safety, more specifically to the field of turnout lubrication systems, and more specifically to an automatic turnout lubrication system. Background Art

[0002] The current lubrication method used for turnouts is: manually carry an oil barrel and apply lubricating oil to the slide bed with a brush regularly. If it rains, the lubricating oil on the surface of the slide bed will be washed away, so it is necessary to apply it frequently to ensure the lubrication of the slide bed and the bottom of the rail. However, the distance between turnouts is far, the number is large, the labor intensity is very high, and the manual maintenance cost is high. In addition, manual lubrication can only apply lubricating oil to the surface of the slide bed. When the point rail and the movable heart rail move left and right, the applied lubricating oil may be scraped off the slide bed, so it cannot play a lubricating role. If the driving is interrupted due to a turnout failure, the indirect losses and the impact caused are even more difficult to estimate. Therefore, the development of an automatic lubrication system for energy-free turnouts is very necessary. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an automatic turnout lubrication system and a grease distributor rotary valve, which can complete the process of oil filling and oil return without energy and system unloading, thereby ensuring that the equipment has sufficient lubrication and does not waste lubricating oil, has strong environmental adaptability, accurate metering, high sensitivity, is maintenance-free, and reduces labor costs.

[0004] To achieve the above-mentioned invention objectives, the present invention adopts the following technical solutions: A turnout automatic lubrication system mainly consists of a pump station, a slide plate, oil pipe 3, oil pipe 4, oil pipe 5, a single-line distributor, a first connecting rod, a sleeper, a switch rail, a stock rail, a wheel pressure pump, and a wheel pressure pump diverter; the switch rail and the stock rail are both installed at the left and right ends of the sleeper; the slide plate is fixedly installed inside the stock rail, and the switch rail is placed on the slide plate; the first connecting rod connects the two switch rails to ensure synchronous left and right movement of the switch rails, and the first connecting rod is connected to the point machine; it is characterized in that: the pump station is arranged on the outer side of one side of the stock rail and is connected to the main oil passage of the single-line distributor through oil pipe 3; the single-line distributor is a cuboid, and a reversing valve core is arranged at the axial center position, and one end of the reversing valve core is fixedly connected to a rocker arm; a hinged roller is arranged at the end of the rocker arm; through holes perpendicular to the reversing valve core are arranged at the upper and lower ends of the single-line distributor; distributor springs and metering plungers are installed in the through holes in a left-right mirror image; one-way valve joints are respectively installed at the left and right ends of the through holes; a distributor oil passage 2 which is inclined and communicated with the main oil passage of the reversing valve core is arranged in the through hole; a main oil passage is arranged at the axis center of the reversing valve core, and a distributor oil passage 1 communicated with the main oil passage is arranged on the side wall of the reversing valve core; the distributor oil passage 1 is communicated with the upper and lower through holes; the single-line distributor contacts the pressing plate at the middle position of the first connecting rod through a cross beam installed on the stock rail; an inclined plate is arranged on one side of the pressing plate; the inclined surface of the inclined plate contacts the roller on the rocker arm; one ends of oil pipe 4 and oil pipe 5 are respectively communicated with the lubrication points in contact with the slide plate and the switch rail, and the other ends are respectively connected to the one-way valve joints of the single-line distributor; the pump station is a hollow cylinder, an oil outlet joint is arranged on the front side wall, and a wheel pressure pump connection flange inclined to the horizontal plane is arranged on the top; inside the oil station, a spring energy storage device and a piston are arranged, and the piston is connected and cooperates with the spring energy storage device to provide potential energy for the lubricating grease in the oil station; a diverter fixing seat is arranged on the inner wall of the oil station corresponding to the axis of the wheel pressure pump connection flange.

[0005] The aforementioned turnout automatic lubrication system is characterized in that: the wheel pressure pump consists of a wheel pressure pump piston cylinder, a wheel pressure pump mounting seat, a wheel pressure pump spring, a wheel pressure pump piston, and a wheel pressure pump diverter. The top of the wheel pressure pump piston cylinder is a circular arc-shaped dome, and the wheel pressure pump spring and the wheel pressure pump piston are sequentially installed inside the wheel pressure pump piston cylinder; the axial section of the wheel pressure pump piston is in the shape of a Chinese character 'zhong', and a through wheel pressure pump oil outlet is arranged at the axis; the wheel pressure pump diverter is a rectangular block, a fixing hole connected to the tail of the wheel pressure pump piston is arranged on the upper surface, and a protruding boss is arranged on the lower surface; the boss is connected to the diverter fixing seat; the wheel pressure pump mounting seat is installed on the outer wall at the front end of the wheel pressure pump piston cylinder, a flange for fixing with the wheel pressure pump connection flange is arranged at the bottom, and a connecting frame for fixing with the outer wall of the stock rail is arranged at the front end.

[0006] The aforementioned turnout automatic lubrication system is characterized in that the height of the wheel pressure pump is greater than the height of the base rail, and the distance between the wheel pressure pump and the base rail is such that the outer edge of the train wheel can be pressed when passing through.

[0007] The aforementioned automatic turnout lubrication system is characterized in that: the wheel pressure pump diverter is equipped with a diverter one-way three-way joint, and a diverter safety valve is arranged on the side wall, and the diverter one-way three-way joint and the diverter safety valve are both connected to the oil channel inside the wheel pressure pump diverter.

[0008] The aforementioned turnout automatic lubrication system and grease distributor rotary valve are characterized in that the piston stroke can be constrained by changing the length of the distributor metering piston push rod, the oil chamber volume can be accurately controlled, and thus the oil output can be accurately controlled.

[0009] The patent of the present invention adopts energy-free lubrication and has no effect on the turnout signal equipment; the diverter controls the flow direction of the oil channel, the pressure oil can only be pressed outward and cannot flow back, and the other two oil ports are connected; the grease enters between the bottom of the point rail and the slide bed through the oil groove on the slide bed plate to complete the oil filling process; the metering is accurate; the piston stroke can be constrained by changing the length of the distributor metering piston push rod, the oil chamber volume can be accurately controlled, and thus the oil output can be accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention.

[0011] Figure 2 It is a stereogram of the present invention.

[0012] Figure 3 It is a schematic diagram of the structure of a single-line distributor of the present invention.

[0013] Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle.

[0014] Figure 5 This is a schematic structural diagram of the single-line distributor of the present invention when filling oil.

[0015] Figure 6 It is a structural schematic diagram of the single-line distributor of the present invention when returning oil.

[0016] Figure 7 It is a three-dimensional diagram of the pump stand of the present invention.

[0017] Figure 8 It is a cross-sectional view of the pump station of the present invention.

[0018] Fig. 9 It is a schematic diagram of the structure of the wheel pressure pump diverter of the present invention.

[0019] Fig.10 It is a schematic diagram of the wheel pressure pump structure of the present invention.

[0020] 1. Pump station, 2. Sliding bed plate, 3. Oil pipe 3, 4. Oil pipe 4, 5. Oil pipe 5, 6. Single-line distributor, 7. First connecting rod, 8. Sleeper, 9. Point rail, 10. Basic rail, 11. Wheel pressure pump, 12. Wheel pressure pump diverter, 13. Rocker arm, 14. Roller, 15. Reversing valve core, 16. Distributor spring, 17. Metering plunger, 18. One-way valve connector, 19. Distributor oil channel 2, 20. Main oil channel, 21. Distributor oil channel 1, 22. Crossbeam, 23. Pressure plate, 24. Tilt plate , 25. Oil outlet connector, 26. Wheel pressure pump connecting flange, 27. Spring accumulator, 28. Piston, 29. Diverter fixing seat, 30. Wheel pressure pump piston cylinder, 31. Wheel pressure pump mounting seat, 32. Wheel pressure pump spring, 33. Wheel pressure pump piston, 34. Wheel pressure pump oil outlet, 35. Fixing hole, 36. Boss, 37. Connecting frame, 38. Diverter one-way three-way connector, 39. Diverter safety valve, 40. Distributor-oil tank 3, 41. Distributor-metering chamber, 42. Distributor-oil pressure chamber. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] The automatic lubrication system for turnouts mainly consists of a pump station, slide plates, oil pipe 3, oil pipe 4, oil pipe 5, single-line distributor, first connecting rod, sleeper, switch rail, stock rail, wheel pressure pump, and diverter. The switch rail and the stock rail are both installed at the left and right ends of the sleeper; the slide plates are fixedly installed on the inner side of the stock rail, and the switch rail is placed on the slide plates; the first connecting rod connects the two switch rails to ensure synchronous left and right movement of the switch rails, and the first connecting rod is connected to the point machine; it is characterized in that: the pump station is arranged on the outer side of one side of the stock rail and is connected to the main oil passage of the single-line distributor through oil pipe 3; the single-line distributor is a cuboid, and a reversing spool is arranged at the axial center position, and one end of the reversing spool is fixedly connected to the rocker arm; the end of the rocker arm has a hinged roller; through holes perpendicular to the reversing spool are arranged at the upper and lower ends of the single-line distributor; distributor springs and metering plungers are symmetrically installed on the left and right inside the through holes; one-way valve joints are respectively installed at the left and right ends of the through holes; a distributor oil passage 2 which is inclined and communicates with the main oil passage of the reversing spool is arranged inside the through hole; a main oil passage is arranged at the axis center of the reversing spool, and a distributor oil passage 1 communicating with the main oil passage is arranged on the side wall of the reversing spool; the distributor oil passage 1 communicates with the upper and lower through holes; the single-line distributor contacts the pressing plate at the middle position of the first connecting rod through a cross beam installed on the stock rail; an inclined plate is arranged on one side of the pressing plate; the inclined surface of the inclined plate contacts the roller on the rocker arm; one ends of oil pipe 4 and oil pipe 5 are respectively communicated with the lubrication points in contact with the slide plates and the switch rails, and the other ends are respectively connected to the one-way valve joints of the single-line distributor; the pump station is a hollow cylinder, an oil outlet joint is arranged on the front side wall, and a wheel pressure pump connection flange inclined to the horizontal plane is arranged on the top; inside the oil station, a spring energy storage device and a piston are arranged, and the piston is connected and cooperates with the spring energy storage device to provide potential energy for the lubricating grease in the oil station; a diverter fixing seat is arranged on the inner wall of the oil station corresponding to the axis of the wheel pressure pump connection flange.

[0023] The automatic lubrication system for turnouts as described above is characterized in that: the wheel pressure pump consists of a wheel pressure pump piston cylinder, a wheel pressure pump mounting seat, a wheel pressure pump spring, a wheel pressure pump piston, and a wheel pressure pump diverter. The top of the wheel pressure pump piston cylinder is a circular arc-shaped dome, and the wheel pressure pump spring and the wheel pressure pump piston are sequentially installed inside the wheel pressure pump piston cylinder; the axial section of the wheel pressure pump piston is in the shape of a Chinese character 'zhong', and a through wheel pressure pump oil outlet is arranged at the axis; the wheel pressure pump diverter is a rectangular block, a fixing hole connected to the tail of the wheel pressure pump piston is arranged on the upper surface, and a protruding boss is arranged on the lower surface; the boss is connected to the diverter fixing seat; the wheel pressure pump mounting seat is installed on the outer wall at the front end of the wheel pressure pump piston cylinder, a flange for fixing with the wheel pressure pump connection flange is arranged at the bottom, and a connecting frame for fixing with the outer wall of the stock rail is arranged at the front end.

[0024] The aforementioned turnout automatic lubrication system is characterized in that the height of the wheel pressure pump is greater than the height of the base rail, and the distance between the wheel pressure pump and the base rail is such that the outer edge of the train wheel can be pressed when passing through.

[0025] The aforementioned automatic turnout lubrication system is characterized in that: the wheel pressure pump diverter is equipped with a diverter one-way three-way joint, and a diverter safety valve is arranged on the side wall, and the diverter one-way three-way joint and the diverter safety valve are both connected to the oil channel inside the wheel pressure pump diverter.

[0026] When the switch machine is started, the first connecting rod moves downward, pushing the distributor-rocker wall to rotate upward, and the reversing valve core rotates counterclockwise. After rotating to a certain angle, the accumulator delivers the pressure oil to the reversing valve-main oil channel through the oil pipe 3. The one-way valve of the reversing valve-valve core is opened, and the grease is injected through the distributor-main oil channel, the distributor-oil channel 1, and the distributor-pressure oil chamber, pushing the distributor-metering piston to move outward, and the distributor-spring is compressed (the distance the metering piston moves is determined by the amount of oil required at the oil filling point). The grease in the distributor-metering chamber is delivered to each oil filling point through the distributor-one-way valve joint and the oil pipe.

[0027] Oil return: When the switch machine is started in reverse, the first connecting rod moves upward, driving the swing wall to rotate downward, and the distributor-reversing valve core rotates clockwise. After rotating to a certain angle, the distributor-main oil circuit and the distributor-oil channel 1 are closed. After they are in place, the distributor-pressure oil chamber, distributor-oil channel 1, distributor-oil groove 3, and distributor-oil channel 2 are connected. Under the action of the distributor-spring, the grease in the distributor-pressure oil chamber passes through the distributor-oil channel 1, distributor-oil groove 3, and distributor-oil channel 2 into the distributor-metering chamber. The oil return process is completed and ready for the next oil injection.

[0028] The device of the present invention:

[0029] Lubrication is carried out in a non-energy-consuming manner and has no effect on the turnout signal equipment.

[0030] When a vehicle passes by, the moving wheelset presses down the wheel pressure pump-cylinder body, and the lubricating oil inside the cylinder body is pressed out through the A port of the wheel pressure pump-piston, and enters the accumulator through the one-way three-way valve to complete the oil pressing process. At the moment when the moving wheelset leaves the top of the wheel pressure pump-cylinder body, the wheel pressure pump-cylinder body rises under the action of the spring force, and negative pressure is generated inside the cylinder body. When the wheel pressure pump-cylinder body rises to the B port and opens, the lubricating oil is sucked into the wheel pressure pump-cylinder body under the action of the negative pressure in the cylinder body. In this way, the lubricating oil continuously injects high-pressure oil into the accumulator. When the pressure of the accumulator reaches the set value, the excess lubricating oil is unloaded through the pressure regulating valve and returned to the oil tank.

[0031] The wheel pressure pump-diverter is installed at the lower end of the wheel pressure pump-piston of the wheel pressure pump to control the flow direction of the oil channel. The pressure oil can only be pressed outward and cannot flow back. The other two oil ports are connected.

[0032] When the switch machine is activated, the first connecting rod moves downward, pushing the distributor-rocker wall to rotate upward, and the reversing valve core rotates counterclockwise. After rotating to a certain angle, the accumulator sends the pressurized lubricating oil to the distributor-main oil channel through the oil pipe 3. After the oil is distributed by the distributor, it is injected into each lubrication point through the oil pipe from the distributor-check valve joint. The grease enters the space between the bottom of the point rail and the slide bed through the oil groove on the slide bed, completing the oil filling process.

[0033] The piston stroke can be constrained by changing the length of the distributor metering piston push rod, and the oil chamber volume can be accurately controlled, thereby accurately controlling the oil output.

Claims

1. The turnout automatic lubrication system mainly consists of a pump station, an oil station, a slide bed, oil pipe 3, oil pipe 4, oil pipe 5, a single-line distributor, a first connecting rod, a sleeper, a point rail, a base rail, a wheel pressure pump, and a diverter. The point rail and the base rail are both installed at the left and right ends of the sleeper; the slide bed is fixedly installed on the inner side of the base rail, and the point rail is placed on the slide bed; the first connecting rod connects the two point rails to ensure that the point rails move left and right synchronously, and the first connecting rod is connected to the switch machine, characterized in that: The pump station is arranged on the outer side of one side of the basic rail and is connected to the main oil passage of the single-line distributor through the third oil pipe; the single-line distributor is a cuboid, and a reversing spool is arranged at the axial center position, and one end of the reversing spool is fixedly connected to the rocker arm; a roller is hinged at the end of the rocker arm; through holes perpendicular to the reversing spool are arranged at the upper and lower ends of the single-line distributor; distributor springs and metering plungers are installed in the through holes in a left-right mirror image; one-way valve joints are installed at the left and right ends of the through holes respectively; a distributor oil passage two which is inclined and communicated with the main oil passage of the reversing spool is arranged in the through hole; a main oil passage is arranged at the axis of the reversing spool, and a distributor oil passage one which penetrates through the side wall of the reversing spool is arranged on the side wall of the reversing spool; the distributor oil passage one is communicated with the upper and lower through holes; the single-line distributor contacts the pressing plate at the middle position of the first connecting rod through the cross beam installed on the basic rail; an inclined plate is arranged on one side of the pressing plate; the inclined surface of the inclined plate contacts the roller on the rocker arm; one ends of the fourth oil pipe and the fifth oil pipe are respectively communicated with the lubrication points where the slide plate and the switch rail contact, and the other ends are respectively connected to the one-way valve joints of the single-line distributor; the oil station is a cylindrical cavity, an oil outlet joint is arranged on the front side wall, and a wheel pressure pump connecting flange inclined to the horizontal plane is arranged on the top; a spring accumulator and a piston are arranged inside the oil station, and the piston is connected and cooperates with the spring accumulator to work to provide potential energy for the grease in the oil station; a diverter fixing seat is arranged on the inner wall of the oil station corresponding to the axis of the wheel pressure pump connecting flange; the wheel pressure pump is composed of a wheel pressure pump piston cylinder, a wheel pressure pump mounting seat, a wheel pressure pump spring, a wheel pressure pump piston and a wheel pressure pump diverter; the top of the wheel pressure pump piston cylinder is a circular arc-shaped dome, and the wheel pressure pump spring and the wheel pressure pump piston are sequentially installed inside the wheel pressure pump piston cylinder; the axial section of the wheel pressure pump piston is in the shape of a Chinese character 'zhong', and a through wheel pressure pump oil outlet is arranged at the axis; the wheel pressure pump diverter is a rectangular block, a fixing hole connected to the tail of the wheel pressure pump piston is arranged on the upper surface, and a protruding boss is arranged on the lower surface; the boss is connected to the diverter fixing seat; the wheel pressure pump mounting seat is installed on the outer wall at the front end of the wheel pressure pump piston cylinder, a flange fixedly connected to the wheel pressure pump connecting flange is arranged at the bottom, and a connecting frame fixedly connected to the outer wall of the basic rail is arranged at the front end; the height of the wheel pressure pump is greater than the height of the basic rail, and the distance between it and the basic rail is such that it can be pressed when the outer edge of the train wheel passes by.

2. The turnout automatic lubrication system according to claim 1, characterized in that: The wheel pressure pump diverter is installed with a diverter one-way three-way joint, and a diverter safety valve is arranged on the side wall. Both the diverter one-way three-way joint and the diverter safety valve are communicated with the oil passage inside the wheel pressure pump diverter.

3. The turnout automatic lubrication system according to claim 1, characterized in that: By changing the length of the ejector rod of the distributor metering piston to restrict the piston stroke and accurately control the oil cavity volume, the oil output can be accurately controlled.

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