CN110284381B - Hydraulic drive's robot rail equipment of polishing - Google Patents
Hydraulic drive's robot rail equipment of polishing Download PDFInfo
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- CN110284381B CN110284381B CN201910609230.0A CN201910609230A CN110284381B CN 110284381 B CN110284381 B CN 110284381B CN 201910609230 A CN201910609230 A CN 201910609230A CN 110284381 B CN110284381 B CN 110284381B
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- 238000005498 polishing Methods 0.000 title claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 43
- 238000006073 displacement reaction Methods 0.000 claims description 29
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims 1
- 238000010992 reflux Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 23
- 230000000694 effects Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000306 component Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses hydraulic-driven robot steel rail polishing equipment, which comprises a polishing head, a hydraulic motor, an axial telescopic oil cylinder, a radial rotary oil cylinder, a horizontal moving oil cylinder and an oil tank, wherein the hydraulic motor is arranged on the polishing head; the oil tank is used for supplying oil for the hydraulic motor, the axial telescopic oil cylinder, the radial rotary oil cylinder and the horizontal moving oil cylinder; the horizontal movement hydro-cylinder is connected with mount and adjustable shelf respectively, the adjustable shelf bottom is connected with rotary platform through the hoist and mount frame, rotary platform is connected with radial rotary hydro-cylinder and promotes rotatoryly through radial rotary hydro-cylinder, radial rotary hydro-cylinder passes through the hinge and is connected with the adjustable shelf, be provided with axial telescopic hydro-cylinder and direction subassembly on the rotary platform, axial telescopic hydro-cylinder and direction subassembly all are connected with feeding platform, be provided with hydraulic motor on the feeding platform. The invention reduces the demand for electric energy, and has low cost, stability and reliability.
Description
Technical Field
The invention relates to the field of rail polishing maintenance, in particular to hydraulic-driven robotic steel rail polishing equipment.
Background
After the rail transit is opened and operated, the steel rail is in a severe environment for a long time, and the steel rail is often damaged due to the power action of a train, the natural environment, the quality of the steel rail and the like, such as cracks, abrasion and the like, so that the service life of the steel rail is reduced, the maintenance workload is increased, the maintenance cost is increased, and even the driving safety is seriously influenced.
Therefore, the rail damage must be eliminated or repaired in time to avoid affecting the safety of rail traffic. Such repair measures as rail oiling, rail grinding, etc., wherein rail grinding is widely used by railways of countries around the world due to its high efficiency.
The existing steel rail polishing equipment adopts the components such as an electric cylinder matched with a motor to perform angle adjustment and provide polishing power, so that a polishing vehicle is required to have enough electric energy and voltage, and therefore, higher requirements are provided for a generator and a power distribution control part, the cost is high, and the control difficulty is high.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the hydraulic-driven robot steel rail polishing equipment which reduces the requirement for electric energy, and has the advantages of low cost, stability and reliability.
In order to solve the technical problems, the invention provides hydraulic-driven robot steel rail polishing equipment, which comprises a polishing head, a hydraulic motor, an axial telescopic oil cylinder, a radial rotary oil cylinder, a horizontal moving oil cylinder and an oil tank;
the oil tank is used for supplying oil for the hydraulic motor, the axial telescopic oil cylinder, the radial rotary oil cylinder and the horizontal moving oil cylinder;
the horizontal movement hydro-cylinder is connected with mount and adjustable shelf respectively, the adjustable shelf bottom is connected with rotary platform through the hoist and mount frame, rotary platform is connected with radial rotary hydro-cylinder and promotes rotatoryly through radial rotary hydro-cylinder, radial rotary hydro-cylinder passes through the hinge and is connected with the adjustable shelf, be provided with axial telescopic hydro-cylinder and direction subassembly on the rotary platform, axial telescopic hydro-cylinder and direction subassembly all are connected with feeding platform, be provided with hydraulic motor on the feeding platform.
Further, the polishing head is connected with the hydraulic motor and provides polishing power through the hydraulic motor;
the oil tank is connected with two oil interfaces of the hydraulic motor through a first oil outlet pipe and a first oil return pipe, a first servo valve is arranged on the two oil interfaces of the hydraulic motor, a first liquid inlet one-way valve is arranged on the first oil outlet pipe, a first energy accumulator is arranged between the first liquid inlet one-way valve and the first servo valve, and a rotating speed sensor is arranged on the hydraulic motor;
and a liquid outlet end of the first liquid inlet one-way valve is provided with a backflow overflow valve.
Further, the axial telescopic oil cylinder provides power for the polishing head to extend out to tightly prop against the steel rail and keep away from the steel rail;
the oil tank is connected with two oil interfaces of the axial telescopic oil cylinder through a second oil outlet pipe and a second oil return pipe, a second reversing valve is arranged on the two oil interfaces of the axial telescopic oil cylinder, a second liquid inlet one-way valve is arranged on the second oil outlet pipe, a second energy accumulator and a pressure relay are arranged between the second liquid inlet one-way valve and a second servo valve, a pilot overflow valve is further arranged on the second oil outlet pipe between the second liquid inlet one-way valve and the oil tank, a second displacement sensor is arranged on the axial telescopic oil cylinder, and a speed regulating valve is further arranged between the axial telescopic oil cylinder and the second reversing valve.
Further, the radial rotary oil cylinder provides power for adjusting the relative included angle between the polishing head and the steel rail;
the oil tank is connected with two oil interfaces of the radial rotary oil cylinder through a third oil outlet pipe and a third oil return pipe, a third servo valve is arranged on the two oil interfaces of the radial rotary oil cylinder, a third liquid inlet one-way valve is arranged on the third oil outlet pipe, and a third displacement sensor is also arranged on the radial rotary oil cylinder;
and a liquid outlet end of the third liquid inlet one-way valve is provided with a backflow overflow valve.
Further, the horizontal moving oil cylinder provides displacement power for the polishing head to move along the two sides of the steel rail;
the oil tank is connected with two oil interfaces of the horizontal moving oil cylinder through a fourth oil outlet pipe and a fourth oil return pipe, a fourth servo valve is arranged on the two oil interfaces of the radial rotating oil cylinder, a fourth liquid inlet one-way valve is arranged on the fourth oil outlet pipe, and the horizontal moving oil cylinder is provided with two fourth displacement sensors in the displacement direction and is also provided with a speed sensor for detecting the moving speed;
and a liquid outlet end of the fourth liquid inlet one-way valve is provided with a backflow overflow valve.
Further, a first stop valve is arranged between the first energy accumulator and the first oil outlet pipe, and a first thermometer and a first pressure gauge are further arranged between the first energy accumulator and the first stop valve.
Further, the number of the axial telescopic cylinders is 2, the second axial telescopic cylinder is connected with a second servo valve, the second servo valve is connected with a second oil outlet pipe and a second oil return pipe, and second displacement sensors are arranged on the two axial telescopic cylinders.
Further, a second thermometer, a plurality of filters and a plurality of coolers which are connected in a matching way are also arranged in the oil tank.
Further, a guide sliding rail is arranged between the fixed frame and the movable frame.
The invention has the beneficial effects that:
the hydraulic mode is adopted to drive the polishing head to conduct autorotation, swing and telescopic movement, the hydraulic polishing head has the advantage of low power consumption, a high-power generator is not required to be used for supporting, the hydraulic mode has the advantage of high stability, and the whole preparation cost is low.
Drawings
FIG. 1 is a schematic view of a hydraulic sanding configuration of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic view of the overall oil circuit structure of the present invention;
FIG. 4 is a schematic view of the oil circuit of the hydraulic motor of the present invention;
FIG. 5 is a schematic view of the oil path of the axial telescopic cylinder of the present invention;
FIG. 6 is a schematic view of the oil path of the horizontal displacement cylinder of the present invention;
FIG. 7 is a schematic view of the present invention when the top surface of the rail is polished;
FIG. 8 is a schematic view of the outboard arc of the polished rail of the present invention;
fig. 9 is a schematic view of the present invention for grinding the inner arcuate edge of a rail.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1 and 2, an embodiment of the hydraulically driven robotic steel rail polishing apparatus of the present invention includes a polishing head 1, a hydraulic motor 2, an axially telescopic cylinder 3, a radially rotary cylinder 4, an oil tank 5, and a horizontally movable cylinder 21, where the steel rail mainly polishes three locations, namely, the top edge, the outer arc edge, and the inner arc edge of the steel rail, so that the horizontally movable cylinder is respectively connected to a fixed frame 28 and a movable frame 29 according to polishing characteristics, the fixed frame can be fixedly connected to a frame of a polishing vehicle, or can be considered as a frame structure, the bottom of the movable frame is connected to a rotary platform 31 through a lifting frame 30, the rotary platform is connected to the radially rotary cylinder and is pushed to rotate by the radially rotary cylinder, the radially rotary cylinder is connected to the movable frame through a hinge 311, the axially telescopic cylinder 3 and a guide assembly 32 are disposed on the rotary platform, and the axially telescopic cylinder 3 and the guide assembly are both connected to a feeding platform 33, and a hydraulic motor is disposed on the feeding platform. A guide sliding rail 34 is arranged between the fixed frame and the movable frame, so that an effective guide movement effect is realized.
Referring to fig. 3 to 6, the polishing head is connected with a hydraulic motor and provides polishing power through the hydraulic motor, the axial telescopic cylinder 3 provides power for the polishing head to extend out to abut against the steel rail and away from the steel rail, the radial rotary cylinder provides power for adjusting the relative included angle between the polishing head and the steel rail, and the oil tank supplies oil for the hydraulic motor, the axial telescopic cylinder 3, the radial rotary cylinder and the horizontal moving cylinder; the hydraulic pump 6 is arranged in the oil tank, provides hydraulic pressure and conveys oil into each oil path;
firstly, a loop for independently controlling a hydraulic motor is arranged in a hydraulic system, and the loop relates to the rotating speed and the torque of a polishing head, so that the loop is a core link of polishing equipment, and an accumulator is arranged on a branch to serve as an auxiliary power source for ensuring good polishing effect, so that the rotating speed of the polishing head is controlled in a stable range; furthermore, the sanding head requires at least two movements to be coordinated during normal use, so that a hydraulic circuit should also be designed in each case. For a longitudinal circuit (i.e. axial movement of the sanding head), the hydraulic motor is carried with the sanding head (and possibly other brackets) to move axially, which is loaded more, an accumulator is added to the circuit to supplement leakage and pressure holding to maintain stable pressure and provide grinding force; there is also a hydraulic circuit for the rotary motion (i.e. radial rotary motion, i.e. yaw motion of the sanding head), which circuit is only required if the piston rod pushes the hydraulic motor to achieve the rotary effect, the force required being generally small.
Specifically, the oil tank is connected with two oil interfaces of the hydraulic motor through a first oil outlet pipe and a first oil return pipe, a first servo valve 7 is arranged on the two oil interfaces of the hydraulic motor, a first liquid inlet one-way valve 8 is arranged on the first oil outlet pipe, a first energy accumulator 9 is arranged between the first liquid inlet one-way valve and the first servo valve, a first reversing valve 91 is arranged on the first energy accumulator, and a rotating speed sensor 10 is arranged on the hydraulic motor; a first shut-off valve 28 is arranged between the first accumulator and the first oil outlet pipe, and a first thermometer and a first pressure gauge are also arranged between the first accumulator and the first shut-off valve.
After the hydraulic pump works, oil enters the first servo valve through the filter, the cooler and the first liquid inlet one-way valve, wherein a backflow overflow valve on the branch road controls the pressure of the oil entering the first servo valve, and the set value of the oil is slightly larger than the working pressure of the hydraulic motor in consideration of certain pressure loss generated when the oil passes through the first servo valve. When the first servo valve is electrified, the hydraulic motor starts to work and can rotate at the rotating speed of 4000 r/s; when the first servo valve is deenergized, the hydraulic motor stops acting.
The hydraulic motor is a core component of the polishing equipment, and the monitoring and control of the working state of the hydraulic motor are important. The branch is provided with a first energy accumulator, an electromagnetic ball valve is arranged at the inlet of the first energy accumulator, and when the electromagnetic ball valve is powered, the energy accumulator starts to supplement oil in order to ensure that the first energy accumulator can accurately supplement leakage; when the electromagnetic ball valve is powered off, the accumulator stops oil supplementing. In addition, in order to be convenient for detect the maintenance to first energy storage ware, begin to go out to install a first stop valve at the branch road to cut off the connection of first energy storage ware and main oil circuit, and assist first thermometer and first manometer, monitor the operating condition of first energy storage ware in real time. When the hydraulic motor works, the rotating speed sensor monitors the rotating speed in the whole process and transmits data to the first servo valve, the first servo valve controls the pressure and flow of oil entering the hydraulic motor by changing the valve port size, and further controls the output torque and rotating speed of the hydraulic motor, and the first energy accumulator is used as an auxiliary power source for releasing the oil after energy storage and when the hydraulic motor operates so as to supplement the pressure in the main oil way and ensure that the rotating speed of the polishing head is controlled in a stable range. The hydraulic motor is guaranteed to be precisely, timely and effectively controlled through a dual monitoring mechanism of the first energy accumulator and the first servo valve.
The oil tank is connected with two oil interfaces of the axial telescopic oil cylinder 3 through a second oil outlet pipe and a second oil return pipe, a second reversing valve 11 is arranged on the two oil interfaces of the axial telescopic oil cylinder 3, a second liquid inlet one-way valve 12 is arranged on the second oil outlet pipe, a second energy accumulator 13 and a pressure relay 14 are arranged between the second liquid inlet one-way valve and the second servo valve, a pilot overflow valve 15 is also arranged on the second oil outlet pipe between the second liquid inlet one-way valve and the oil tank, a second displacement sensor 16 is arranged on the axial telescopic oil cylinder 3, and a speed regulating valve 17 is also arranged between the axial telescopic oil cylinder 3 and the second reversing valve, so that oil enters the axial telescopic oil cylinder 3 through the speed regulating valve when the axial telescopic oil cylinder 3 stretches out and moves;
when in action, oil enters the axial telescopic oil cylinder 3 through the second liquid inlet one-way valve, the second reversing valve and the speed regulating valve. In order to ensure the reliability and stability of the operation, the double hydraulic cylinders are adopted for driving, so that the number of the axial telescopic cylinders 3 is 2, the second axial telescopic cylinder 3 is connected with a second servo valve 27, the second servo valve is connected with a second oil outlet pipe and a second oil return pipe, and the two axial telescopic cylinders 3 are respectively provided with a second displacement sensor.
A pilot overflow valve is arranged on a pipeline before the oil flows in the second liquid inlet one-way valve, so that pressure oil with too high inflow pressure is avoided. In addition, a second energy accumulator is arranged in the middle of the oil way, and the second energy accumulator can be used as an auxiliary power source for releasing oil so as to supplement the pressure in the main oil way and avoid the shaking of the hydraulic cylinder caused by pressure fluctuation. A second stop valve 281 is arranged at the upstream of the second energy accumulator, so that the second energy accumulator is convenient to install, detect and maintain; the pressure relay at the downstream of the second accumulator is used as an automatic switch, when the loop pressure reaches a certain value, the oil directly flows back to the oil tank through the pilot overflow valve, and the main oil way is supplied with pressure oil by the accumulator; when the pressure decreases, the oil continues to supply oil to the main oil passage and the second accumulator.
When the hydraulic motor is driven to axially move, the pressure and the speed change before and after the guide rail contact, and finally the pressure is kept at a certain value and the speed is 0, so that a speed regulating valve is arranged at the upstream of one axial telescopic cylinder 3. The hydraulic motor starts to move downwards at a certain speed, the load is continuously increased in the process of contacting the edge of the steel rail, the valve port of the speed regulating valve is reduced until the valve port is closed, and the hydraulic motor stops moving, so that a constant pressure exists between the grinding wheel and the rail, and the grinding efficiency is improved; and at the same time, the pressure relay can trigger the pilot overflow valve to work under the pressure, and the loop is pressurized by the energy accumulator. The second reversing valve and the second servo valve for controlling the movement of the two axial telescopic cylinders 3 adopt an oil delivery pipe, second displacement sensors are arranged at the piston rods of the two axial telescopic cylinders 3, when the two axial telescopic cylinders 3 move, the two second displacement sensors transmit measurement results to the second servo valve, and the second servo valve adjusts the size of a valve port of the second servo valve by comparing the difference value of the transmission values of the two second displacement sensors so as to realize synchronous movement of the piston rods of the two cylinders.
The oil tank is connected with two oil interfaces of the radial rotary oil cylinder through a third oil outlet pipe and a third oil return pipe, a third servo valve 18 is arranged on the two oil interfaces of the radial rotary oil cylinder, a third liquid inlet one-way valve 19 is arranged on the third oil outlet pipe, and a third displacement sensor 20 is also arranged on the radial rotary oil cylinder.
In the rotary motion loop, oil directly enters the radial rotary oil cylinder through a third liquid inlet one-way valve and a third servo valve. The hydraulic motor is pushed to move clockwise or pushed to move anticlockwise by controlling oil to enter the left cavity of the hydraulic cylinder or enter the right cavity of the hydraulic cylinder. The amount of movement of which is monitored by a third displacement sensor. When the radial rotary oil cylinder works, the third displacement sensor transmits the measured displacement of the piston rod to the third servo valve, the third servo valve analyzes the data, and the rotation angle of the hydraulic motor and the linear displacement of the radial rotary oil cylinder are in one-to-one correspondence through mathematical formula conversion, so that the rotation angle of the hydraulic motor is judged.
The horizontal moving oil cylinder provides displacement power for the polishing head to move along the two sides of the steel rail, and the polishing head can also transversely move, so that the polishing head can directly polish three directions of the steel rail through the displacement of the horizontal moving oil cylinder; the oil tank is connected with two oil interfaces of the horizontal movement oil cylinder through a fourth oil outlet pipe and a fourth oil return pipe, a fourth servo valve 22 is arranged on the two oil interfaces of the radial rotation oil cylinder, a fourth liquid inlet one-way valve 23 is arranged on the fourth oil outlet pipe, and the horizontal movement oil cylinder is provided with two fourth displacement sensors 24 in the displacement direction and also provided with a speed sensor 25 for detecting the movement speed.
The oil enters the horizontal moving oil cylinder through the fourth liquid inlet one-way valve and the fourth servo valve, and the motion relates to a cyclic reciprocating polishing process, so that the loop can adopt a double-rod hydraulic cylinder mode to save working space, and the whole structure is more compact; the left side and the right side of the horizontal movement oil cylinder are respectively provided with a fourth displacement sensor. To achieve the effect of a reciprocating motion by triggering two fourth displacement sensors.
In the process of moving the horizontal moving oil cylinder, the backflow overflow valve controls the oil pressure flowing into the loop, the speed sensor is arranged at the piston rod, the speed of the piston rod is monitored in real time, the detection result is transmitted to the fourth servo valve, the fourth servo valve compares the result with a set value, and the comparison result is reflected on the size of the valve port, so that the movement speed of the piston rod is controlled, the movement speed of the piston rod is kept in a relatively stable numerical range, and further, the transverse stable movement is realized. Because the horizontal moving oil cylinder is used for realizing the left and right feeding movement when the hydraulic motor polishes the side edge of the track, the speed change is not needed, and the speed regulating device is not installed in the loop.
Specifically, the backflow overflow valve 26 is installed at the liquid outlet ends of the first liquid inlet check valve, the third liquid inlet check valve and the fourth liquid inlet check valve.
Referring to fig. 7, when the top edge of the steel rail needs to be polished, the movable frame is driven to move to the upper part of the top edge of the steel rail by the horizontal moving oil cylinder, the movable frame moves to the upper part of the top edge with the bottom component, at the moment, the rotating angle of the rotating platform is adjusted by the radial rotating oil cylinder, the polishing end face of the polishing head is parallel to the top edge, the polishing head is driven to rotate by the hydraulic motor, then the axial telescopic oil cylinder 3 moves towards the steel rail with the feeding platform, and finally the polishing head is abutted to the top edge of the steel rail.
Referring to fig. 8, when the outer arc edge of the steel rail needs to be polished, the movable frame is driven to move to the outer side part of the steel rail through the horizontal moving oil cylinder, the movable frame moves to the outer side with the bottom component, at the moment, the rotating angle of the rotating platform is adjusted through the radial rotating oil cylinder, the polishing end face of the polishing head is opposite to the outer arc edge part needing to be polished, the polishing head is driven to rotate through the hydraulic motor, then the feeding platform is driven to move towards the steel rail through the axial telescopic oil cylinder 3, and finally the polishing head abutting effect on the outer arc edge of the steel rail is achieved.
Referring to fig. 9, when the inner arc edge of the steel rail needs to be polished, the movable frame is driven to move to the inner part of the steel rail through the horizontal moving oil cylinder, the movable frame moves to the inner side with the components at the bottom, at the moment, the rotating angle of the rotating platform is adjusted through the radial rotating oil cylinder, the polishing end face of the polishing head is opposite to the inner arc edge part needing to be polished, the polishing head is driven to rotate through the hydraulic motor, then the feeding platform is driven to move towards the steel rail through the axial telescopic oil cylinder 3, and finally the polishing head is abutted to the inner arc edge of the steel rail to polish.
The invention adopts pure oil liquid to provide power required by polishing, has single and reliable effect in the aspect of control design, reduces the requirement for electric energy, reduces the use cost and maintenance cost of the electric assembly, and has the advantages of stability, reliability and easy popularization.
The above embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (4)
1. The hydraulic-driven robot steel rail polishing equipment is characterized by comprising a polishing head, a hydraulic motor, an axial telescopic oil cylinder, a radial rotary oil cylinder, a horizontal moving oil cylinder and an oil tank;
the oil tank is used for supplying oil for the hydraulic motor, the axial telescopic oil cylinder, the radial rotary oil cylinder and the horizontal moving oil cylinder;
the horizontal moving oil cylinder is respectively connected with the fixed frame and the movable frame, the bottom of the movable frame is connected with the rotary platform through the hoisting frame, the rotary platform is connected with the radial rotary oil cylinder and is pushed to rotate through the radial rotary oil cylinder, the radial rotary oil cylinder is connected with the movable frame through a hinge, the rotary platform is provided with an axial telescopic oil cylinder and a guide assembly, the axial telescopic oil cylinder and the guide assembly are both connected with the feeding platform, and the feeding platform is provided with a hydraulic motor; the polishing head is connected with the hydraulic motor and provides polishing power through the hydraulic motor;
the oil tank is connected with two oil interfaces of the hydraulic motor through a first oil outlet pipe and a first oil return pipe, a first servo valve is arranged on the two oil interfaces of the hydraulic motor, a first liquid inlet one-way valve is arranged on the first oil outlet pipe, a first energy accumulator is arranged between the first liquid inlet one-way valve and the first servo valve, and a rotating speed sensor is arranged on the hydraulic motor;
a liquid outlet end of the first liquid inlet one-way valve is provided with a backflow overflow valve;
the axial telescopic oil cylinder provides power for the polishing head to extend out to abut against the steel rail and be far away from the steel rail;
the oil tank is connected with two oil interfaces of the axial telescopic oil cylinder through a second oil outlet pipe and a second oil return pipe, a second reversing valve is arranged on the two oil interfaces of the axial telescopic oil cylinder, a second liquid inlet one-way valve is arranged on the second oil outlet pipe, a second energy accumulator and a pressure relay are arranged between the second liquid inlet one-way valve and a second servo valve, a pilot overflow valve is also arranged on the second oil outlet pipe between the second liquid inlet one-way valve and the oil tank, a second displacement sensor is arranged on the axial telescopic oil cylinder, and a speed regulating valve is also arranged between the axial telescopic oil cylinder and the second reversing valve;
the radial rotary oil cylinder provides power for adjusting the relative included angle between the polishing head and the steel rail;
the oil tank is connected with two oil interfaces of the radial rotary oil cylinder through a third oil outlet pipe and a third oil return pipe, a third servo valve is arranged on the two oil interfaces of the radial rotary oil cylinder, a third liquid inlet one-way valve is arranged on the third oil outlet pipe, and a third displacement sensor is also arranged on the radial rotary oil cylinder;
a liquid outlet end of the third liquid inlet one-way valve is provided with a backflow overflow valve;
the horizontal moving oil cylinder provides displacement power for the polishing head to move along the two sides of the steel rail;
the oil tank is connected with two oil interfaces of the horizontal moving oil cylinder through a fourth oil outlet pipe and a fourth oil return pipe, a fourth servo valve is arranged on the two oil interfaces of the radial rotating oil cylinder, a fourth liquid inlet one-way valve is arranged on the fourth oil outlet pipe, and the horizontal moving oil cylinder is provided with two fourth displacement sensors in the displacement direction and is also provided with a speed sensor for detecting the moving speed;
a liquid outlet end of the fourth liquid inlet one-way valve is provided with a reflux overflow valve;
a first stop valve is arranged between the first energy accumulator and the first oil outlet pipe, and a first thermometer and a first pressure gauge are further arranged between the first energy accumulator and the first stop valve.
2. The hydraulically driven robotic rail grinding device of claim 1, wherein the number of axially telescoping cylinders is 2, a second axially telescoping cylinder is connected to a second servo valve, the second servo valve is connected to a second oil outlet pipe and a second oil return pipe, and second displacement sensors are provided on both axially telescoping cylinders.
3. A hydraulically driven robotic rail grinding device as defined in claim 1, wherein a second thermometer, a plurality of filters and a plurality of coolers are also provided in the tank in mating connection.
4. A hydraulically driven robotic rail grinding apparatus as defined in claim 1, wherein guide rails are provided between the fixed and movable frames.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910609230.0A CN110284381B (en) | 2019-07-08 | 2019-07-08 | Hydraulic drive's robot rail equipment of polishing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910609230.0A CN110284381B (en) | 2019-07-08 | 2019-07-08 | Hydraulic drive's robot rail equipment of polishing |
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| CN110284381A CN110284381A (en) | 2019-09-27 |
| CN110284381B true CN110284381B (en) | 2024-03-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US12257663B2 (en) * | 2019-04-02 | 2025-03-25 | Ge-Hitachi Nuclear Energy Americas Llc | Remote surface treatment systems and methods |
| CN110804911B (en) * | 2019-11-25 | 2021-07-30 | 株洲时代电子技术有限公司 | Steel rail polishing unit |
| CN112357636B (en) * | 2020-09-28 | 2022-05-20 | 广州粤研智能装备股份有限公司 | High-synchronization material pressing system and method of automatic sheet stacking turnover machine |
| CN112917339A (en) * | 2021-02-01 | 2021-06-08 | 上海应用技术大学 | Novel grinding machine |
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| CN202556200U (en) * | 2011-12-02 | 2012-11-28 | 江南大学 | Novel steel rail belt sanding vehicle |
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| CN104625930A (en) * | 2015-03-11 | 2015-05-20 | 戚恒 | Steel rail grinding machine |
| CN109958010A (en) * | 2017-12-22 | 2019-07-02 | 中车北京二七机车有限公司 | Rail grinding machine |
| CN210657831U (en) * | 2019-07-08 | 2020-06-02 | 苏州睿友智能装备有限公司 | Hydraulically driven robot rail equipment of polishing |
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2019
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| CN202556200U (en) * | 2011-12-02 | 2012-11-28 | 江南大学 | Novel steel rail belt sanding vehicle |
| CN202809416U (en) * | 2012-07-03 | 2013-03-20 | 北京二七轨道交通装备有限责任公司 | Control device for angle of operation mechanism of grinding wagon |
| CN103015279A (en) * | 2013-01-11 | 2013-04-03 | 成都市新筑路桥机械股份有限公司 | High-speed grinding train for rails |
| CN104625930A (en) * | 2015-03-11 | 2015-05-20 | 戚恒 | Steel rail grinding machine |
| CN109958010A (en) * | 2017-12-22 | 2019-07-02 | 中车北京二七机车有限公司 | Rail grinding machine |
| CN210657831U (en) * | 2019-07-08 | 2020-06-02 | 苏州睿友智能装备有限公司 | Hydraulically driven robot rail equipment of polishing |
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| CN110284381A (en) | 2019-09-27 |
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