CN221433588U - High-viscosity grease pneumatic control spraying oiling machine for steel rail bolts - Google Patents

Abstract

The utility model discloses a high-viscosity grease pneumatic control spraying oiling machine for steel rail bolts, which comprises a frame, a PLC (programmable logic controller), a hydraulic pneumatic system and a plurality of spraying systems, wherein the hydraulic pneumatic system is arranged on the frame; each spraying system comprises two groups of oil injection units, and the hydro-pneumatic system comprises a motor, an air compressor, an air storage tank, an oil circuit and an air circuit; the oil circuit loop comprises an oil tank and a pneumatic diaphragm pump, the outlet end of the air storage tank is connected with an air inlet pipeline of the pneumatic diaphragm pump, the oil tank is connected with an oil inlet pipeline of the pneumatic diaphragm pump, the oil outlet of the pneumatic diaphragm pump is connected with a fluid inlet pipeline of each fluid pneumatic control valve, and the fluid outlet of the fluid pneumatic control valve is connected with a nozzle pipeline. The hydro-pneumatic system of the utility model adopts the method of controlling the high viscosity fluid by the low viscosity fluid to control and spray the high viscosity grease oil, and the scheme of directly controlling the high viscosity grease by the electromagnetic valve is abandoned, thereby reducing the failure rate of the system and greatly improving the robustness of the system.

Description

High-viscosity grease pneumatic control spraying oiling machine for steel rail bolts

Technical Field

The utility model belongs to the field of railway track maintenance, and relates to a high-viscosity oil gas control spraying oiling machine for steel rail bolts.

Background

The railway rail is fixed on the ground through bolts, and oil coating is needed to be carried out on the bolts to prevent the bolts from rusting in the maintenance process of the rail. One of the traditional bolt oiling modes is to use a manual oiling mode, so that the efficiency is low, the oiling is uneven, and labor are wasted. The other is that the oiling machine is used for oiling the bolts beside the track in the whole process, and the automatic degree is low and the working efficiency is low although the labor force is liberated to a certain extent. The high-viscosity grease has good rust-proof effect on the steel rail bolts, but most of the high-viscosity grease working is stopped at the manual working stage at present, and the time and the labor are wasted.

The utility model patent with the application number of 202121390729.6 and the publication number of CN 215042790U discloses a full-automatic oil sprayer for steel rail bolts, which takes a PLC control module as a core, wherein the PLC control module sends an oil spraying instruction to an electromagnetic valve of a hydraulic system, the electromagnetic valve is opened, and lubricating oil is sprayed to the steel rail bolts instantaneously through an oil spray nozzle. The oil-spraying hydraulic system comprises an oil tank, an overflow valve, an oil pump, a one-way valve, an energy accumulator and two electromagnetic valves, wherein the oil tank, the overflow valve, the oil pump, the one-way valve, the energy accumulator and the two electromagnetic valves are communicated with each other through an oil path; the oil pump divides oil into two paths after extracting from the oil tank, one path passes through the overflow valve to the oil tank, and the other path passes through the one-way valve and then respectively enters the energy accumulator and the two electromagnetic valves, and the corresponding oil nozzle is controlled by each electromagnetic valve. However, this patent has disadvantages, for the following reasons: aiming at high-viscosity grease, the scheme of controlling the on-off of an oil way by an electromagnetic valve cannot meet the requirements, on one hand, the oil way in the electromagnetic valve is too small to enable grease to pass smoothly and cannot reach a theoretical output value, on the other hand, the high-viscosity grease easily blocks an oil way channel, the electromagnetic valve cannot obtain switching force for overcoming the viscous force of the grease, a solenoid valve coil is easy to burn, and the scheme of directly controlling the on-off of the oil way by the electromagnetic valve based on the reasons of the two aspects cannot be used for spraying the high-viscosity grease.

Disclosure of Invention

The utility model aims to provide a high-viscosity grease pneumatic control spraying oiling machine for steel rail bolts, which abandons the technology of controlling nozzle oil injection by an electromagnetic valve, adopts a PLC controller to control a hydro-pneumatic system, and automatically controls the nozzle to finish spraying of high-viscosity grease oil by corresponding actions.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme.

The high-viscosity grease pneumatic control spraying oiling machine for the steel rail bolts comprises a frame, a PLC (programmable logic controller), a hydro-pneumatic system and a plurality of spraying systems;

Each set of spraying system comprises two groups of oil spraying units, and each group of oil spraying unit comprises a nozzle and a fluid pneumatic control valve; the fluid pneumatic control valve comprises a valve body and a cylinder, wherein a fluid inlet and a fluid outlet are formed in the valve body, and two air holes are formed in the cylinder;

The hydraulic pneumatic system comprises a motor, an air compressor, an air storage tank, an oil circuit and an air circuit; the motor is connected with the air compressor; the outlet end of the air compressor is connected with the inlet end of the air storage tank through a pipeline; the pipeline is divided into two paths from the outlet end of the gas storage tank, one path is communicated with the oil path loop, and the other path is communicated with the gas path loop; the oil circuit loop comprises an oil tank and a pneumatic diaphragm pump, the outlet end of the air storage tank is connected with an air inlet pipeline of the pneumatic diaphragm pump, the oil tank is connected with an oil inlet pipeline of the pneumatic diaphragm pump, the oil outlet of the pneumatic diaphragm pump is connected with a fluid inlet pipeline of each fluid pneumatic control valve, and the fluid outlet of the fluid pneumatic control valve is connected with a nozzle pipeline.

In the high-viscosity oil gas control spraying oiling machine for the steel rail bolts, a valve cavity is arranged in the valve body, and the fluid inlet, the fluid outlet and the valve cavity are communicated; the two air holes on the air cylinder are a first air hole and a second air hole respectively, the first air hole is communicated with the front cavity of the air cylinder, and the second air hole is communicated with the rear cavity of the air cylinder.

In the high-viscosity grease pneumatic control spraying oiling machine for the steel rail bolts, the gas circuit loop comprises a plurality of two-position two-way electromagnetic valves and a plurality of two-position five-way electromagnetic valves; the two-position two-way electromagnetic valve, the two-position five-way electromagnetic valve and the oil injection unit are equal in number; one oil injection unit corresponds to one two-position two-way electromagnetic valve, and one oil injection unit corresponds to one two-position five-way electromagnetic valve; the outlet end of the air storage tank is respectively connected with each two-position two-way electromagnetic valve and each two-position five-way electromagnetic valve pipeline, each two-position two-way electromagnetic valve is connected with the corresponding nozzle pipeline, and the two working ports of each two-position five-way electromagnetic valve are connected with the two air hole pipelines of the corresponding fluid pneumatic control valve.

In the high-viscosity oil gas control spraying oiling machine for the steel rail bolts, the motor, the two-position two-way electromagnetic valve and the two-position five-way electromagnetic valve are respectively controlled by the PLC.

In the high-viscosity oil gas control spraying oiling machine for the steel rail bolts, the plurality of spraying systems are respectively arranged at the left side and the right side of the bottom of the frame; each spraying system further comprises an electric push rod and a transverse mounting plate, one end of the electric push rod is fixed at the bottom of the frame, and the other end of the electric push rod is fixed with the transverse mounting plate; the two groups of oil injection units are respectively arranged at the left end and the right end of the transverse mounting plate; the electric push rod is controlled by the PLC controller.

In the high-viscosity oil gas control spraying oiling machine for the steel rail bolts, a plurality of sets of detection systems are arranged at the bottom of the frame, the number of the detection systems is the same as that of the spraying systems, and one set of detection systems corresponds to one set of spraying system; the detection system comprises a sensor, a sensor expansion block and a right-angle folding bracket; the right-angle folding bracket is fixed at the bottom of the frame, and the sensor is arranged on the right-angle folding bracket; and a sensor expansion block is arranged on a contact of the sensor.

In the high-viscosity oil gas control spraying oiling machine for the steel rail bolts, the bottom of the frame is provided with a plurality of travelling wheels; all or part of the travelling wheels are provided with driving devices; the driving device comprises a stepping motor and a speed reducer, the stepping motor is connected with the speed reducer, and the speed reducer is connected with a wheel transmission shaft of the travelling wheel through a key; the stepping motor is controlled by a PLC controller.

The beneficial effects of the utility model are as follows:

The hydro-pneumatic system of the utility model adopts the method of controlling the high viscosity fluid (oil) by the low viscosity fluid (gas) to control and spray the high viscosity oil, and the scheme of directly controlling the high viscosity oil by the electromagnetic valve is abandoned, thereby reducing the failure rate of the system and greatly improving the robustness of the system.

The utility model adopts a low-pressure air spraying mode to finish grease spraying action, reduces the overall pressure of a hydraulic system, ensures the work under the safe environment of human bodies, and greatly improves the safety of the system.

3. According to the utility model, the PLC is adopted to control the hydro-pneumatic system, the hydro-pneumatic system performs corresponding action, the on-off of the high-viscosity oil is controlled by controlling the action of the cylinder of the fluid pneumatic control valve, the fluid channel of the fluid pneumatic control valve is wider, the high-viscosity oil is not easy to block, the oil can smoothly pass through, and the output oil quantity is stable.

4. The hydropneumatic system controls the work of the pneumatic diaphragm pump by delivering compressed gas, and the pneumatic diaphragm pump has incomparable advantages compared with gear pumps, centrifugal pumps, vane pumps and the like in the aspect of sucking high-viscosity grease liquid, and has the following specific advantages: firstly, the pneumatic diaphragm pump is more suitable for liquid with higher viscosity, the diaphragm pump is not easy to wear, and the service life of the pneumatic diaphragm pump is greatly prolonged compared with that of a gear pump, a centrifugal pump and a vane pump when the pneumatic diaphragm pump is used for high-viscosity grease with impurities; secondly, an electric diaphragm pump is abandoned by using the pneumatic diaphragm pump, the service life of the pump is prolonged, and the power of a whole system is reduced; thirdly, the pneumatic diaphragm pump is used, so that the utilization rate of gas is increased, the redundancy rate of the pneumatic system is reduced, the pneumatic system is fully used, the control medium of three large blocks of oil supply, oil control and oil injection is unified, and the whole machine control scheme is unified.

5. The detection system, the hydraulic pneumatic system and the spraying system are mutually matched, the matching is accurate, the oil spraying work is automatically completed, and the spraying is accurate and free of errors; and the oiling machine does not need to stop when spraying.

Drawings

FIG. 1 is a front view of a pneumatic spray coating applicator of the present utility model;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic illustration of the spray system of the present utility model in an oiling machine;

FIG. 5 is a schematic view of the structure of a fluid pneumatic valve in the oiling machine of the present utility model;

FIG. 6 is a schematic diagram of the hydropneumatic system of the oiling machine of the present utility model; (the solid line in the figure represents the oil circuit, and the broken line represents the gas circuit)

FIG. 7 is a schematic diagram of a detection system in the oiling machine according to the present utility model;

FIG. 8 is a schematic view of the travelling wheel and drive arrangement of the oiling machine of the present utility model;

FIG. 9 is a schematic view of the structure of the first component tank of the oiling machine of the present utility model disposed on the frame;

Fig. 10 is a functional block diagram of a PLC controller in the oiling machine of the present utility model.

In the figure:

1. A detection system; 101. a sensor; 102. a sensor expansion block; 103. a mounting block; 104. a right-angle folding bracket; 105. a spring; 106. a contact;

2. A spray system; 201. an electric push rod; 202. a transverse mounting plate; 203. a nozzle; 204. a fluid pneumatic valve; 205. a spraying unit; 2041. a valve body; 2042. a cylinder; 2043. a fluid inlet; 2044. a fluid outlet; 2045. a piston; 2046. a piston rod; 2047. a front chamber; 2048. a rear chamber; 2049. a first air hole; 2050. a second air hole;

301. a walking wheel; 302. a support plate; 303. a stepping motor; 304. a speed reducer; 305. a wheel drive shaft;

4. A display screen of the PLC controller; 5. a frame;

6. A hydropneumatic system; 601. a motor; 602. an air compressor; 603. a gas storage tank; 604. an exhaust valve; 605. a first pressure regulating valve; 606. a second pressure regulating valve; 607. an oil tank; 608. a pneumatic diaphragm pump; 609. an overflow valve; 610. two-position two-way electromagnetic valve; 611. two-position five-way electromagnetic valve; 612. a pressure gauge; 613. a first pipe; 614. a second pipe; 615. a third conduit; 616. a fourth conduit;

7. A seat; 8. a first component box; 9. a second component box; 10. and a third component box.

Detailed Description

As shown in fig. 1, 2 and 3, the utility model provides a high-viscosity grease pneumatic control spraying oiling machine for steel rail bolts, which comprises a frame 5, a PLC controller, a hydro-pneumatic system 6, a plurality of travelling wheels 301, a plurality of detection systems 1 and a plurality of spraying systems 2. All the road wheels 301, all the detection systems 1 and all the spraying systems 2 are arranged at the bottom of the frame 5.

As shown in fig. 2, a plurality of sets of spraying systems 2 are respectively provided at the left and right sides of the bottom of the frame 5. As shown in fig. 4, each spray system 2 includes an electric push rod 201, a transverse mounting plate 202, and two sets of fuel injection units 205; one end of the electric push rod 201 is fixed at the bottom of the frame 5, and the other end is fixed with a transverse mounting plate 202; the electric push rod 201 can be lengthened and shortened and is controlled by a PLC controller; two sets of fuel injection units 205 are respectively arranged at the left and right ends of the transverse mounting plate 202. Each set of fuel injection units 205 includes a nozzle 203 and a fluid pneumatic valve 204.

As shown in fig. 5, the fluid pneumatic valve 204 includes a valve body 2041 and a cylinder 2042; the valve body 2041 is provided with a fluid inlet 2043 and a fluid outlet 2044, a valve cavity is arranged in the valve body 2041, and the fluid inlet 2043, the fluid outlet 2044 and the valve cavity are communicated; disposed within the cylinder 2042 are a piston 2045 and a piston rod 2046, the piston 2045 dividing the interior of the cylinder 2042 into a front chamber 2047 and a rear chamber 2048; the cylinder 2042 is further provided with a first air hole 2049 and a second air hole 2050, the first air hole 2049 being in communication with the front chamber 2047, and the second air hole 2050 being in communication with the rear chamber 2048. The fluid pneumatic valve 204 can be purchased directly from the market, and the manufacturer is: the De Li xi electric Co., ltd, the product model is: q22HD-15.

As shown in fig. 6, the hydro-pneumatic system 6 includes a motor 601, an air compressor 602, an air tank 603, an oil circuit, and an air circuit. The motor 601 is connected with the air compressor 602; the outlet end of the air compressor 602 is connected with the inlet end of the air storage tank 603 through a pipeline. The pipeline is divided into two paths from the outlet end of the air storage tank 603, one path is communicated with the oil circuit through a first pipeline 613, and the other path is communicated with the gas circuit through a third pipeline 615. The oil circuit comprises an oil tank 607 and a pneumatic diaphragm pump 608, the oil tank 607 is filled with high-viscosity oil and fat liquid, the outlet end of the air storage tank 603 is connected with the air inlet of the pneumatic diaphragm pump 608 through a first pipeline 613, the oil tank 607 is connected with the oil inlet pipeline of the pneumatic diaphragm pump 608, the oil outlet of the pneumatic diaphragm pump 608 is connected with a second pipeline 614, the second pipeline 614 is further branched and connected with the fluid inlet 2043 pipeline of each fluid pneumatic control valve 204, and the fluid outlet 2044 of the fluid pneumatic control valve 204 is connected with the nozzle 203 pipeline. The gas circuit loop comprises a plurality of two-position two-way electromagnetic valves 610 and a plurality of two-position five-way electromagnetic valves 611; the two-position two-way electromagnetic valve 610, the two-position five-way electromagnetic valve 611 and the oil injection unit 205 are equal in number; one fuel injection unit 205 corresponds to one two-position two-way solenoid valve 610, and one fuel injection unit 205 corresponds to one two-position five-way solenoid valve 611; the outlet end of the air storage tank 603 is connected with a third pipeline 615, the third pipeline 615 is further branched and connected with each two-position two-way electromagnetic valve 610 and each two-position five-way electromagnetic valve 611 in a pipeline way, each two-position two-way electromagnetic valve 610 is further connected with the corresponding nozzle 203 in a pipeline way, and two working ports of each two-position five-way electromagnetic valve 611 are further connected with two air holes (a first air hole 2049 and a second air hole 2050) of the corresponding fluid pneumatic control valve 204 in a pipeline way.

Both the two-position two-way solenoid valve 610 and the two-position five-way solenoid valve 611 are commercially available; the manufacturer and product model of the two-position two-way solenoid valve 610 are: adenoki 2V025-08-B; the manufacturer and the product model of the two-position five-way electromagnetic valve 611 are as follows: adand 4V 210-06-B.

In addition, an exhaust valve 604 is provided at the outlet end position of the air tank 603 at the junction of the first duct 613 and the third duct 615. In the oil circuit, a first pressure regulating valve 605 is provided on a first pipe 613, and a pressure gauge 612 is provided on a second pipe 614; a fourth pipe 616 is connected between the oil tank 607 and the oil outlet of the air-operated diaphragm pump 608, and an overflow valve 609 is provided in the fourth pipe 616. In the gas circuit, a second pressure regulating valve 606 is provided on the third pipe 615.

The method for spraying the steel rail screws by using the hydro-pneumatic system 6 and the spraying system 2 comprises the following steps:

as shown in fig. 6 and 10, the PLC controller controls the motor 601 to operate, the motor 601 drives the air compressor 602 to move, the air compressor 602 provides an air source and compresses air, and then the compressed air is delivered to the air storage tank 603 for storage; from the outlet end of the air storage tank, the pipeline is divided into two paths, one path is led to the oil circuit, and the other path is led to the gas circuit.

The outlet end of the air storage tank 603 supplies compressed air to the pneumatic diaphragm pump 608 through the first pipeline 613, and the air pressure required by the pneumatic diaphragm pump 608 is regulated through the first pressure regulating valve 605. When compressed gas enters the pneumatic diaphragm pump 608, one diaphragm is pushed to move towards the other direction, so that negative pressure is generated in one chamber of the pneumatic diaphragm pump 608, a suction valve is opened, and high-viscosity grease in the oil tank 607 is sucked into the pneumatic diaphragm pump 608 through a pipeline. Then, the compressed air passes through the pneumatic valve of the pneumatic diaphragm pump 608 to drive the other diaphragm to move in the opposite direction, and at this time, the diaphragm in the chamber where the negative pressure is generated moves, so that the oil is discharged from the pneumatic diaphragm pump 608 through the discharge valve under pressure. With the continuous switching of the pneumatic valves in the pneumatic section of the pneumatic diaphragm pump 608, the two diaphragms reciprocate alternately, achieving continuous and uninterrupted delivery of oil. When the oil reaches the fluid inlets 2043 of the respective fluid pneumatic valves 204 through the pneumatic diaphragm pump 608, the two-position two-way solenoid valve 610 is in a closed state, and the two-position five-way solenoid valve 611 is in a power-off state. Compressed air in the air storage tank 603 flows into the second air hole 2050 of the fluid air control valve 204 through the third pipeline 615 and the branch pipeline thereof and through the two-position five-way electromagnetic valve 611, the air in the rear chamber 2048 increases, the piston rod 2046 stretches out, the redundant air in the front chamber 2047 is discharged from the first air hole 2049, the end head of the piston rod 2046 plugs the valve cavity of the valve body 2041, at this time, the valve body 2041 is in a closed state, and oil cannot pass through the valve body 2041 at the fluid inlet 2043 of the valve body 2041. Since the two-position two-way solenoid valve 610 is in the closed state, no gas passes through the two-position two-way solenoid valve 610.

When the PLC controller receives the spraying signal, the PLC controller controls the two-position five-way solenoid valve 611 to be electrified, and at this time, the compressed gas delivered from the gas tank 603 passes through the third pipe 615 and the branch pipe thereof, and passes through the two-position five-way solenoid valve 611, the gas flows into the first gas hole 2049 of the fluid gas control valve pump 204 and flows into the front chamber 2047, the piston rod 2046 is retracted, the redundant gas in the rear chamber 2048 is discharged from the second gas hole 2050, the valve body 2041 is opened, and the oil at the fluid inlet 2043 directly flows into the nozzle 203 through the valve body 2041; after a certain time, the oil is filled in the inner cavity of the nozzle 203, the PLC controls the two-position five-way electromagnetic valve 611 to lose electricity, the valve body 2041 of the fluid pneumatic control valve pump 204 is closed, and the oil is stopped being provided for the nozzle 203; meanwhile, the PLC controls the two-position two-way electromagnetic valve 610 to be electrified, the two-position two-way electromagnetic valve 610 is opened, gas passes through the two-position two-way electromagnetic valve 610 and flows to the nozzle 203, and oil in the nozzle 203 is sprayed out under the pressure of the gas to spray the steel rail bolts.

In addition, when the gas tank 603 supplies compressed gas to the gas circuit, the gas pressure required for the gas circuit is regulated by the second regulating valve 606. The two-position two-way electromagnetic valve 610, the two-position five-way electromagnetic valve 611, the nozzle 203 and the fluid pneumatic control valve 204 of each path can be independently controlled, and the two-position two-way electromagnetic valve, the nozzle 203 and the fluid pneumatic control valve are not mutually affected during operation.

The gas pressure required by the pneumatic diaphragm pump 608 is different from the gas pressure in the pipeline after the second pressure regulating valve 606, different pressure thresholds are required to be set according to target requirements, the oil way matching conditions under different pressure combinations are different, and the set pressures are different under different working conditions. Therefore, the pneumatic pressure required for the pneumatic diaphragm pump 608 is regulated by the first regulating valve 605, and the gas pressure in the third pipe 615 and its branch pipe is regulated by the second regulating valve 606.

Furthermore, in the oil circuit, the relief valve 609 arranged on the fourth pipeline 616 can ensure the safety of the oil circuit system, when the oil pressure in the oil circuit exceeds the preset pressure, the relief valve 609 is automatically opened, and the excessive oil flows back to the oil tank 607, so as to ensure the stability of the oil pressure in the oil circuit. The pressure gauge 612 arranged on the second pipeline 614 can monitor the oil pressure of the oil way in real time.

After the whole oil injection process of the oiling machine is finished, the exhaust valve 604 is opened, so that the gas in the gas storage tank 603, the first pipeline 613 and the gas circuit is quickly decompressed, the gas pressure in the gas storage tank 603 is zero, and the water in the compressed gas can be discharged.

As shown in fig. 1, 2, 3 and 7, a plurality of sets of detection systems 1 are further arranged at the bottom of the rack 5, the number of the detection systems 1 is the same as that of the spraying systems 2, and one set of detection systems 1 corresponds to one set of spraying systems 2; the detection system 1 comprises a sensor 101, a sensor expansion block 102 and a right-angle folding bracket 104; the right-angle folding bracket 104 is fixed at the bottom of the frame 5, and the sensor 101 is arranged on the right-angle folding bracket 104 through the mounting block 103; the sensor extension block 102 is provided on the contact 106 of the sensor 101. When the right angle folding bracket 104 is fully unfolded, the spring 105 and contact 106 of the sensor 101 are oriented vertically to the ground. When the oiling machine works, if the sensor expansion block 102 touches the steel rail bolt, the sensor 101 sends a spraying signal to the PLC, and after the PLC receives the signal, the hydraulic pneumatic system 6 and the spraying system 2 are controlled to spray the steel rail bolt. The manufacturer and model of the sensor 101 are ohm-Dragon WLNJ-TH-N, the sensor expansion block 102 is a flat block-shaped structure body arranged at the tail end of the contact 106 of the sensor 101, the wide surface of the sensor expansion block is perpendicular to the steel rail, the detection range of the sensor is widened, the induction stability is improved, and all bolts can be smoothly detected during operation.

As shown in fig. 1, 2, 3 and 8, a plurality of travelling wheels 301 are arranged at the bottom of the frame 5, and the plurality of travelling wheels 301 are symmetrically arranged at the bottom of the frame 5. Specifically, the travelling wheel 301 is suspended and fixed on a supporting plate 302, and the supporting plate 302 is fixed at the bottom of the frame 5 through bolts. All or part of the travelling wheels 301 are provided with driving devices, each driving device comprises a stepping motor 303 and a speed reducer 304, each stepping motor 303 is connected with each speed reducer 304, and each speed reducer 304 is connected with a wheel transmission shaft 305 of each travelling wheel 301 through a key.

As shown in fig. 10, when the pneumatic spraying oiling machine works, the stepping motor 303 is controlled by the PLC controller, the PLC controller controls the stepping motor 303 to start working, and after the stepping motor 303 is decelerated by the speed reducer 304, the driving force is transmitted to the travelling wheel 301 through the key transmission torque, so as to drive the travelling wheel 301 to rotate, and the travelling function of the oiling machine is realized. After the work is finished, the PLC controls the stepping motor 303 to stop working, the travelling wheel 301 does not rotate any more, and the whole oiling machine stops walking. In addition, the driving device may be mounted on all the travelling wheels 301, or the driving device may be mounted on part of the travelling wheels 301, for example: the driving device is installed only on the two traveling wheels 301 at the forefront of the frame 5, as shown in fig. 2.

As shown in fig. 1, three component boxes, a first component box 8, a second component box 9, and a third component box 10, are fixed to the frame 5. As shown in fig. 9, the air compressor 602, the air tank 603, the air diaphragm pump 608, and the oil tank 607 are placed in the first component tank 8 and fixed to the bottom of the first component tank 8. The motor 601, all the two-position two-way solenoid valves 610, and all the two-position five-way solenoid valves 611 are collectively placed in the second component case 9. The PLC controller is placed in the third component box 10. As shown in fig. 3, a first component box 8 is fixed on the frame 5, a seat 7 is also fixed on the first component box 8, and a PLC controller display screen 4 is arranged in front of the seat 7; when the oiling machine works, a worker sits on the seat 7 and operates on the display screen 4 of the PLC to control the PLC, and then the advancing, retreating and oil spraying conditions of the oiling machine are controlled. The manufacturer and model of the PLC are Mitsubishi FX3U-32MT.

The method for spraying the steel rail bolt by using the oiling machine comprises the following steps:

In the step 1, the method comprises the following steps,

When the oiling machine is ready to work, the right-angle folding bracket 104 of the detection system 1 is fully unfolded, the spring 105 and the contact 106 of the sensor 101 are vertically directed to the ground, and then the position of the sensor 101 is adjusted, so that the sensor expansion block 102 can touch the steel rail bolts in the running process of the oiling machine. After the positions of the sensor 101 and the sensor expansion block 102 are adjusted, the PLC controller controls the electric pushrods 201 of all the spraying systems 2 to extend simultaneously, the oil spraying units 205 descend to the proper positions, and at the moment, the nozzles 203 are lower than the upper surfaces of the steel rails, so that the nozzles 203 can realize ideal spraying states.

Step 2 of the method, in which the step 2,

After the preparation work is finished, the PLC controller controls the stepping motor 303 to start working, after the stepping motor 303 is decelerated by the speed reducer 304, driving force is transmitted to the travelling wheel 301 through key transmission torque, the travelling wheel 301 is driven to rotate, and the oiling machine starts to walk on a steel rail and starts formal work.

Step 3 of the method, in which the step 3,

3.1 When the oiling machine starts to walk, the PLC controller controls the motor 601 to work, the air compressor 602 provides an air source and compresses air, the compressed air is conveyed to the air storage tank 603 for storage, and the air storage tank 603 conveys the compressed air to the pneumatic diaphragm pump 608 and the air circuit;

3.2 after compressed gas enters the pneumatic diaphragm pump 608, high-viscosity grease oil in the oil tank 607 is sucked into the pneumatic diaphragm pump 608; at this time, the two-position two-way electromagnetic valve 610 is in a closed state, the two-position five-way electromagnetic valve 611 is in a power-off state, and the valve body 2041 of the fluid pneumatic valve 204 is closed; the pneumatic diaphragm pump 608 delivers oil to the fluid inlet 2043 of the valve body 2041 but not through the valve body 2041; nor gas passes through the two-position two-way solenoid valve 610;

3.3 in the running process of the oiling machine, if the sensor expansion block 102 touches a steel rail bolt, the sensor 101 sends a spraying signal to the PLC controller, the PLC controller controls the two-position five-way electromagnetic valve 611 to obtain electricity after receiving the signal, the valve body 2041 of the fluid pneumatic valve 204 is opened, and the oil at the fluid inlet 2043 directly flows into the nozzle 203 through the valve body 2041; after a certain time, the oil is filled in the inner cavity of the nozzle 203, the PLC controls the two-position five-way electromagnetic valve 611 to lose electricity, the valve body 2041 of the fluid pneumatic control valve pump 204 is closed, and the oil is stopped being provided for the nozzle 203; meanwhile, the PLC controls the two-position two-way electromagnetic valve 610 to be electrified, the two-position two-way electromagnetic valve 610 is opened, gas passes through the two-position two-way electromagnetic valve 610 and flows to the nozzle 203, and oil in the nozzle 203 is sprayed out under the pressure of the gas to spray the steel rail bolts.

Step 4 of the process, in which,

After the first batch of steel rail bolts are sprayed, the oil in the inner cavity of the nozzle 203 is used up, and the pneumatic diaphragm pump 608 continuously conveys the oil to the position of the fluid inlet 2043 of the valve body 2041; when the sensor expansion block 102 touches the next batch of steel rail bolts, the sensor 101 sends a spraying signal to the PLC again, and after the PLC receives the signal, the PLC controls the two-position two-way electromagnetic valve 610 and the two-position five-way electromagnetic valve 611 to finish the spraying operation of the nozzle 203 again.

In the step 5, the step of the method,

After the spraying work of the whole steel rail bolt is finished, the right-angle folding bracket 104 of the detection system 1 is retracted and folded, so that the spring 105 and the contact 106 of the sensor 101 are in a horizontal state, and the detection system 1 is prevented from being contacted with other objects to generate friction collision. Meanwhile, the PLC controls the electric push rods 201 of all the spraying systems 2 to retract, so that the nozzles 203 are higher than the upper surfaces of the steel rails and higher than the travelling wheels 301, the nozzles 203 are prevented from being damaged, and the safety of devices is ensured. Finally, the vent valve 604 is opened to rapidly release the gas in the gas tank 603, the first pipe 613 and the gas circuit, the gas pressure in the gas tank 603 is zero, and the moisture in the compressed gas is discharged.

Claims (8)

1. A high viscous grease pneumatic control spraying oiling machine for rail bolt, its characterized in that: comprises a frame (5),

A PLC controller, a hydro-pneumatic system (6) and a plurality of sets of spraying systems (2);

Each set of spraying system (2) comprises two groups of oil spraying units (205), and each group of oil spraying units (205) comprises a nozzle (203) and a fluid pneumatic control valve (204); the fluid pneumatic control valve (204) comprises a valve body (2041) and a cylinder (2042), wherein a fluid inlet (2043) and a fluid outlet (2044) are formed in the valve body (2041), and two air holes are formed in the cylinder (2042);

The hydro-pneumatic system (6) comprises a motor (601), an air compressor (602), an air storage tank (603), an oil circuit and an air circuit; the motor (601) is connected with the air compressor (602); the outlet end of the air compressor (602) is connected with the inlet end of the air storage tank (603) through a pipeline; the pipeline is divided into two paths from the outlet end of the air storage tank (603), one path is communicated with the oil path loop, and the other path is communicated with the air path loop; the oil circuit loop comprises an oil tank (607) and a pneumatic diaphragm pump (608), the outlet end of the air storage tank (603) is connected with an air inlet pipeline of the pneumatic diaphragm pump (608), the oil tank (607) is connected with an oil inlet pipeline of the pneumatic diaphragm pump (608), the oil outlet of the pneumatic diaphragm pump (608) is connected with a fluid inlet pipeline (2043) of each fluid pneumatic control valve (204), and a fluid outlet pipeline (2044) of each fluid pneumatic control valve (204) is connected with a nozzle (203) pipeline.

2. The high viscosity grease pneumatic control coating applicator for rail bolts of claim 1, wherein: a valve cavity is arranged in the valve body (2041), and the fluid inlet (2043), the fluid outlet (2044) and the valve cavity are communicated; the two air holes on the cylinder (2042) are a first air hole (2049) and a second air hole (2050), wherein the first air hole (2049) is communicated with the front chamber (2047) of the cylinder (2042), and the second air hole (2050) is communicated with the rear chamber (2048) of the cylinder (2042).

3. The high viscosity grease pneumatic control coating applicator for rail bolts of claim 2, wherein: the gas circuit loop comprises a plurality of two-position two-way electromagnetic valves (610) and a plurality of two-position five-way electromagnetic valves (611); the two-position two-way electromagnetic valve (610), the two-position five-way electromagnetic valve (611) and the oil injection unit (205) are equal in number; one oil injection unit (205) corresponds to a two-position two-way electromagnetic valve (610), and one oil injection unit (205) corresponds to a two-position five-way electromagnetic valve (611); the outlet end of the air storage tank (603) is respectively connected with two-position two-way electromagnetic valves (610) and two-position five-way electromagnetic valves (611) through pipelines, each two-position two-way electromagnetic valve (610) is connected with a corresponding nozzle (203) through a pipeline, and two working ports of each two-position five-way electromagnetic valve (611) are connected with two air hole pipelines of a corresponding fluid pneumatic control valve (204).

4. A high viscosity grease pneumatic control spray applicator for rail bolts according to claim 3, wherein: the motor (601), the two-position two-way electromagnetic valve (610) and the two-position five-way electromagnetic valve (611) are respectively controlled by the PLC.

5. The high viscosity grease pneumatic control coating applicator for rail bolts of claim 1, wherein: the spraying systems (2) are respectively arranged at the left side and the right side of the bottom of the frame (5); each set of spraying system (2) further comprises an electric push rod (201) and a transverse mounting plate (202), one end of the electric push rod (201) is fixed at the bottom of the frame (5), and the other end of the electric push rod is fixed with the transverse mounting plate (202); the two groups of oil injection units (205) are respectively arranged at the left end and the right end of the transverse mounting plate (202); the electric push rod (201) is controlled by a PLC controller.

6. The high viscosity grease pneumatic control coating applicator for rail bolts of claim 1, wherein: a plurality of sets of detection systems (1) are arranged at the bottom of the frame (5), the number of the detection systems (1) is the same as that of the spraying systems (2), and one set of detection systems (1) corresponds to one set of spraying systems (2); the detection system (1) comprises a sensor (101), a sensor expansion block (102) and a right-angle folding bracket (104); the right-angle folding bracket (104) is fixed at the bottom of the frame (5), and the sensor (101) is arranged on the right-angle folding bracket (104); a sensor expansion block (102) is arranged on a contact (106) of the sensor (101).

7. The high viscosity grease pneumatic control coating applicator for rail bolts of claim 1, wherein: a plurality of travelling wheels (301) are arranged at the bottom of the frame (5); all or part of the travelling wheels (301) are provided with driving devices; the driving device comprises a stepping motor (303) and a speed reducer (304), wherein the stepping motor (303) is connected with the speed reducer (304), and the speed reducer (304) is connected with a wheel transmission shaft (305) of the travelling wheel (301) through a key; the stepper motor (303) is controlled by a PLC controller.

8. The high viscosity grease pneumatic control coating applicator for rail bolts of claim 1, wherein: a valve cavity is arranged in the valve body (2041), and the fluid inlet (2043), the fluid outlet (2044) and the valve cavity are communicated; two air holes on the cylinder (2042) are a first air hole (2049) and a second air hole (2050), wherein the first air hole (2049) is communicated with a front chamber (2047) of the cylinder (2042), and the second air hole (2050) is communicated with a rear chamber (2048) of the cylinder (2042);

The gas circuit loop comprises a plurality of two-position two-way electromagnetic valves (610) and a plurality of two-position five-way electromagnetic valves (611); the two-position two-way electromagnetic valve (610), the two-position five-way electromagnetic valve (611) and the oil injection unit (205) are equal in number; one oil injection unit (205) corresponds to a two-position two-way electromagnetic valve (610), and one oil injection unit (205) corresponds to a two-position five-way electromagnetic valve (611); the outlet end of the air storage tank (603) is respectively connected with each two-position two-way electromagnetic valve (610) and each two-position five-way electromagnetic valve (611) through pipelines, each two-position two-way electromagnetic valve (610) is connected with the corresponding nozzle (203) through a pipeline, and two working ports of each two-position five-way electromagnetic valve (611) are connected with two air hole pipelines of the corresponding fluid pneumatic control valve (204);

The spraying systems (2) are respectively arranged at the left side and the right side of the bottom of the frame (5); each set of spraying system (2) further comprises an electric push rod (201) and a transverse mounting plate (202), one end of the electric push rod (201) is fixed at the bottom of the frame (5), and the other end of the electric push rod is fixed with the transverse mounting plate (202); the two groups of oil injection units (205) are respectively arranged at the left end and the right end of the transverse mounting plate (202);

A plurality of sets of detection systems (1) are arranged at the bottom of the frame (5), the number of the detection systems (1) is the same as that of the spraying systems (2), and one set of detection systems (1) corresponds to one set of spraying systems (2); the detection system (1) comprises a sensor (101) and a sensor expansion block (102); a sensor expansion block (102) is arranged on a contact (106) of the sensor (101);

a plurality of travelling wheels (301) are arranged at the bottom of the frame (5), and driving devices are arranged on all or part of the travelling wheels (301);

The motor (601), the two-position two-way electromagnetic valve (610), the two-position five-way electromagnetic valve (611) and the electric push rod (201) are respectively controlled by a PLC controller.