Railway bolt oiling operation method

Abstract

The application discloses a kind of vehicle-mounted rail bolt oiling operation method, when carrying out oiling operation, locking mechanism is operated and controlled to perform unlocking action, after unlocking, lifting mechanism is operated by control system, and detection executing mechanism is lowered to operation position.In the process of rail engineering vehicle, pressurizing device is sucked from the grease tank and pressurized to the required pressure.When the sleeper bolt detection sensor detects the sleeper bolt, a signal is sent to the control system, and the control system determines the delay time according to the collected vehicle speed, and outputs a signal after the delay time, and controls the spray gun to open.The high-pressure grease is sprayed onto the sleeper bolt through the spray gun, and the amount of grease sprayed is adjusted by controlling the spraying time.The application can solve the technical problems that the existing oiling operation method cannot effectively spray the rail bolt in all directions, and the oiling operation quality is not high.

Description

Technical Field

[0001] This application relates to the field of railway engineering machinery technology, and in particular to a method for applying oil to onboard rail bolts. Background Technology

[0002] With the construction of rail transit, the increase in railway speed, and the development of heavy-haul transportation, the workload of track maintenance is constantly increasing, and the requirements for maintenance quality are also constantly rising. Among them, as an important part of railway maintenance, track sleeper bolts need to be regularly coated with oil for rust prevention. At present, the oiling of railway fasteners is usually done manually or using some small hand-push bolt oiling equipment for semi-manual work, which has low work efficiency and the quality of oiling cannot be maintained consistently.

[0003] Existing technologies typically use hydraulic solenoid valves to directly control the start and stop of the spraying medium. However, due to the performance limitations of these valves, they are generally unsuitable for spraying high-viscosity rust-preventive greases and are only suitable for using lower-viscosity and less fluid rust-preventive oils in automatic oiling operations. Therefore, most existing automatic oiling equipment is only suitable for spraying rust-preventive oils, while using rust-preventive grease for spraying in actual oiling operations provides better rust prevention. Furthermore, existing spraying methods cannot achieve the high-frequency on / off control of atomized spraying of rust-preventive grease, and most existing methods use nozzles to spray vertically downwards onto sleeper bolts (or fasteners), failing to effectively spray the cylindrical surface of the bolts from all directions.

[0004] The following documents are relevant to this application in the prior art:

[0005] Prior art 1 is a Chinese invention application filed by Huainan Mining (Group) Co., Ltd. on September 24, 2021, and published on December 10, 2021, with publication number CN113769920A. This application discloses an automatic oil spraying device and method for railway sleeper bolts. The automatic oil spraying device is installed on the track-setting device of a tamping machine and includes a mounting bracket, a lead screw, a motor, a limit block, a bolt detection sensor, an oil circuit, and an air circuit. The mounting bracket is installed on the track-setting device of the tamping machine. A mounting base plate is fixedly installed on the mounting bracket, which has a cavity. The lead screw is rotatably installed in the cavity, and the motor is installed at one end of the mounting bracket and connected to the lead screw. A slider is disposed in the cavity and threadedly connected to the lead screw. A limit member is fitted against one side of the mounting base plate and connected to the slider. The limit member has a downward-facing mounting post, and a third proximity switch and an oil nozzle are installed on the mounting post. The oil circuit and air circuit system are connected to the oil nozzle. The control system is connected to the first proximity switch, the second proximity switch, the third proximity switch, and the oil and air circuit system. This device is used for step-by-step operations; the vehicle must be stationary during operation. A motor drives a lead screw to move a bolt detection sensor and a nozzle positioning bolt, and then grease is sprayed through the oil and air circuits. However, the automatic grease spraying device in this application lacks a pressurization device in its oil circuit; it uses compressed gas to atomize and spray the grease, resulting in poor spraying effect and low work quality.

[0006] Prior art 2 is a Chinese invention application filed by Zhuzhou Times Electronic Technology Co., Ltd. on July 11, 2022, and published on October 18, 2022, with publication number CN115198582A. This application discloses a sleeper bolt oiling device and a railway engineering work vehicle including the device. The sleeper bolt oiling device is installed in the middle of the work vehicle, away from the wheels, and mainly includes a lifting drive mechanism, a main frame, a rail-mounted oiling mechanism, and a locking mechanism. The main frame includes a first fixed frame and a crossbeam. The first fixed frame is installed at the bottom of the vehicle frame. The upper part of the lifting drive mechanism is connected to the vehicle frame, and the lower part is connected to the crossbeam. The crossbeam can move up and down relative to the first fixed frame under the drive of the lifting drive mechanism. The rail-mounted oiling mechanism is installed on the left and right sides of the crossbeam to realize rail-mounted travel and bolt oiling operations. When a sleeper bolt signal is detected, the rail-mounted oiling mechanism performs oiling operations on the sleeper bolts. This application mainly addresses the technical problem of the oiling device being positioned close to the rail during operation on curved sections when it is in the middle of the vehicle, but the structure of this oiling device is relatively complex.

[0007] Prior art 3 is a Chinese utility model patent applied for by Xi'an Yishengda Technology Co., Ltd. on January 28, 2021, and published on October 22, 2021, with publication number CN214467762U. This patent discloses an automatic tightening and oiling integrated device for railway sleeper bolt fasteners, comprising a protective cover, air pump, oil tank, pressure regulating valve, positioning seat, optical shaft, cylinder, travel motor, linear bearing, and positioning seat arranged sequentially along one direction on the upper part of a bottom frame. It also includes casters, drive wheels, an air tank, and driven wheels located at the lower part of the bottom frame. This device pressurizes the grease by directly injecting compressed air into the oil tank, and uses an air-assisted spraying method for application. However, this spraying device is only suitable for applying rust-preventive oil to sleeper bolts; it cannot perform high-frequency on / off control for atomized spraying of rust-preventive grease. Summary of the Invention

[0008] In view of this, the purpose of this application is to provide a method for applying oil to vehicle-mounted rail bolts, so as to solve the technical problem that the existing oiling methods cannot effectively spray the rail bolts from all directions and the oiling quality is not high.

[0009] To achieve the aforementioned objectives, this application specifically provides a technical solution for a method of applying oil to vehicle-mounted rail bolts. The oiling device includes: a detection and execution mechanism, a grease tank, a pressurizing device, and a control system. The detection and execution mechanism includes a sleeper bolt detection sensor and a spray gun, and is equipped with a lifting mechanism and a locking mechanism. The method includes the following steps:

[0010] During the oiling operation, the locking mechanism is operated and controlled to unlock. After unlocking, the lifting mechanism is operated via the control system, and the actuator is detected to descend to the working position. During the movement of the rail engineering vehicle, the pressurizing device draws grease from the grease tank and pressurizes it to the required pressure. When the sleeper bolt detection sensor detects a sleeper bolt, it sends a signal to the control system. The control system determines the delay time based on the collected vehicle speed, outputs a signal, and after the delay, controls the spray gun to open. High-pressure grease is sprayed onto the sleeper bolt through the spray gun, and the amount of grease sprayed is adjusted by controlling the spraying time.

[0011] Furthermore, the detection execution mechanism includes: a mounting bracket; an upper fixed plate and a lower fixed plate disposed on the mounting bracket; a guide rod disposed between the upper fixed plate and the lower fixed plate; and a lifting frame movably disposed on the guide rod. The lifting mechanism employs a lifting cylinder, one end of which is fixed to the mounting bracket, and the other end to the lifting frame. The sleeper bolt detection sensor is disposed at the bottom front end of the lifting frame. The spray guns are disposed at the bottom of the lifting frame, arranged in pairs facing each other laterally, and symmetrically arranged at an angle to each other longitudinally. During the oiling operation, the same sleeper bolt is sprayed with oil in the front-to-back direction using the spray guns.

[0012] Furthermore, a limiting ring is provided on the guide rod. The limiting ring can move up and down along the length of the guide rod and is fixed at different height positions on the guide rod to limit the descent height of the lifting frame, so that the sleeper bolt detection sensor and the spray gun are within the set height range.

[0013] Furthermore, an adjusting spring is also provided on the guide rod, and the adjusting spring is located above the limiting ring.

[0014] During oiling operations, the lifting frame descends, and the downward pressure provided by the lifting cylinder compresses the adjusting spring, thereby fine-tuning the height of the lifting frame to meet the requirements of the oiling operation. When the track engineering vehicle is performing oiling operations on a curved section, the control system controls the lifting cylinder to release the downward pressure. Under the action of the adjusting spring, the detection actuator rises to a certain height to compensate for the height impact caused by the side tilt of the track engineering vehicle.

[0015] Furthermore, the detection actuator also includes a rising position detection sensor and a locking position detection sensor. The locking mechanism includes a locking cylinder, a stop spring, and a locking pin. Both the rising position detection sensor and the locking position detection sensor are mounted on the upper fixed plate. The fixed end of the locking cylinder is mounted on the upper fixed plate, and the movable end is fitted with a stop spring and connected to the locking pin.

[0016] When the detection actuator is not in operation, it is raised to the traveling position by the lifting cylinder. The locking cylinder drives the locking pin to lock the upper locking part of the lifting frame to the upper fixed plate. The anti-reverse spring ensures that the locking pin remains locked even when the locking cylinder cuts off the air supply in the locked state. When the locking position detection sensor detects the signal from the locking pin, the locking cylinder locks the mechanism in place.

[0017] When the detection actuator is in working condition, the locking cylinder pushes the locking pin to unlock, and under the action of the lifting cylinder, the detection actuator descends to the working position.

[0018] Furthermore, the detection actuator also includes an obstacle avoidance mechanism, which comprises a spring mounting plate, a return spring, a rotating pin, and a guide pin. The spring mounting plate is mounted on the lifting frame, one end of the return spring is fixed to the spring mounting plate, and the other end is fixed to the guide pin. An arc-shaped groove is formed on the lifting frame, and the sleeper bolt detection sensor is movably mounted on the lifting frame via the rotating pin. The guide pin is rotatably connected to the sleeper bolt detection sensor and is located within the arc-shaped groove. The sleeper bolt detection sensor can rotate around the rotating pin, and the guide pin limits the rotation range of the sleeper bolt detection sensor.

[0019] When the sleeper bolt detection sensor collides with a sleeper bolt, the sleeper bolt detection sensor automatically swings to avoid the obstacle. After the obstacle avoidance action is completed, the return spring pulls the guide pin to automatically reset the sleeper bolt detection sensor.

[0020] Furthermore, the obstacle avoidance mechanism also includes a plunger mounted on the lifting frame. When the rail engineering vehicle travels at high speed, the plunger locks the sleeper bolt detection sensor, preventing the sensor from swinging.

[0021] Furthermore, the detection actuator of the oiling device is installed close to the wheels of the rail engineering vehicle.

[0022] Furthermore, the grease tank, pressurizing device, and control system of the oiling operation device are installed on the frame of the rail engineering vehicle or in the driver's cab.

[0023] Furthermore, the detection actuator is installed on the bogie of the track engineering vehicle or the end beam of the satellite trolley.

[0024] Furthermore, the grease tank is equipped with an oil level window, a heater, a temperature sensor, a filler port, an oil suction filter, a three-way valve, and a ball valve. The heater is inserted into the grease tank for heating the grease, and the oil level window is used to observe the grease level in the tank.

[0025] When the temperature sensor detects that the grease temperature is lower than the set temperature, the heater heats the grease to the set temperature and then stops heating, increasing the grease's fluidity when the ambient temperature is low. When the ball valve is open, the three-way valve connects to the oil inlet of the suction filter and the pressurizing device in sequence through the pipeline. The pressurizing device draws out the grease through the suction filter and pressurizes it.

[0026] By implementing the technical solution of the on-board rail bolt oiling operation method provided in this application, the following beneficial effects are achieved:

[0027] (1) The method for applying oil to rail bolts in this application uses a pressurizing device to pressurize the rust-preventive grease to the pressure required for atomization. The on / off control of the air source of the automatic spray gun is used to control the spraying of the rust-preventive grease. The high-pressure rust-preventive grease is then atomized and sprayed out through the spray gun, which can spray the rail bolts in an all-round, effective and high-quality manner.

[0028] (2) The method for applying oil to rail bolts in this application achieves good atomization spraying effect of the rust-preventive grease by controlling the on-off state of the rust-preventive grease at high frequency. When the spray gun moves with the vehicle to perform continuous spraying, the sprayed rust-preventive grease can effectively cover the surface of the rail bolts in all directions, which greatly improves the efficiency of the oiling operation.

[0029] (3) The method for applying oil to rail bolts in this application uses two spray guns arranged at a certain angle to apply oil to a target rail sleeper bolt at the same time, which solves the technical problem that some of the sprayed anti-rust grease is blocked by the upper end face of the rail sleeper bolt, resulting in insufficient coverage of the cylindrical surface of the rail sleeper bolt.

[0030] (4) The method for applying oil to rail bolts in this application uses a detection and execution mechanism that is installed close to the wheel position, which avoids the technical problem that the oiling device cannot be aligned with the rail when it is installed in the middle of the vehicle, and at the same time greatly simplifies the structure of the oiling device. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram illustrating the principle of a specific embodiment of the method for applying oil to vehicle-mounted rail bolts according to this application;

[0033] Figure 2 This is a schematic diagram of a specific embodiment of the vehicle-mounted rail bolt oiling device and rail engineering vehicle on which the operation method of this application is based;

[0034] Figure 3 This is a front view of the installation structure of the actuator in a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0035] Figure 4This is a side view of the installation structure of the actuator in a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0036] Figure 5 This is a front view of the structure in operation of a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0037] Figure 6 This is a side view of the structure in operation of a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0038] Figure 7 This is a schematic diagram of the installation structure of the pressurizing device in a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0039] Figure 8 This is a three-dimensional structural schematic diagram of the actuator in a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0040] Figure 9 This is a front structural schematic diagram of the actuator in a specific embodiment of the vehicle-mounted rail bolt oiling device upon which the operation method of this application is based;

[0041] Figure 10 This is a side view of the actuator in a specific embodiment of the vehicle-mounted rail bolt oiling device upon which the operation method of this application is based;

[0042] Figure 11 This is a partial cross-sectional structural schematic diagram of the actuator in a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0043] Figure 12 This is a partial structural diagram of the actuator in a specific embodiment of the vehicle-mounted rail bolt oiling device upon which the operation method of this application is based;

[0044] Figure 13 This is a schematic diagram of the obstacle avoidance mechanism in a specific embodiment of the vehicle-mounted rail bolt oiling device upon which the operation method of this application is based;

[0045] Figure 14 This is a schematic diagram of the front structure of the grease tank in a specific embodiment of the vehicle-mounted rail bolt oiling device on which the operation method of this application is based;

[0046] Figure 15 This is a side view of the grease tank in a specific embodiment of the vehicle-mounted rail bolt lubrication device on which the operation method of this application is based;

[0047] Figure 16This is a schematic diagram of the operating state of the actuator in a specific embodiment of the method for applying oil to vehicle-mounted rail bolts according to this application. Figure 1 ;

[0048] Figure 17 This is a schematic diagram of the operating state of the actuator in a specific embodiment of the method for applying oil to vehicle-mounted rail bolts according to this application. Figure 2 ;

[0049] Figure 18 This is a schematic diagram of the operating state of the actuator in a specific embodiment of the method for applying oil to vehicle-mounted rail bolts according to this application. Figure 3 ;

[0050] In the diagram: 1-Detection actuator, 2-Grease tank, 3-Pressure device, 4-Control system, 5-Bogie, 6-Rail, 7-Sleeper, 8-Sleeper bolt, 9-Wheel, 10-Lubrication device, 11-Solenoid valve, 12-Air circuit, 13-Oil circuit, 14-Frame, 15-End beam, 16-Driver's cab, 101-Mounting bracket, 102-Lifting cylinder, 103-Lifting frame, 104-Sleeper bolt detection sensor, 105-Spray gun, 106-Locking cylinder, 107-Guide rod, 108-Adjusting spring, 109-Limit ring, 110-Mounting plate, 111-Shock damping pad. 112-Rising position detection sensor, 113-Locking position detection sensor, 114-Air distribution block, 115-Spring mounting plate, 116-Reset spring, 117-Rotating pin, 118-Anti-reverse spring, 119-Locking pin, 120-Plunger, 121-Guide pin, 122-Arc groove, 123-Upper fixing plate, 124-Lower fixing plate, 125-Locking part, 201-Oil level window, 202-Heater, 203-Temperature sensor, 204-Oil filler port, 205-Oil suction filter, 206-Three-way valve, 207-Ball valve, 100-Railway engineering vehicle. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] As attached Figure 1 To be continued Figure 18 As shown, a specific embodiment of the method for applying oil to vehicle-mounted rail bolts according to this application is given. The application will be further described below with reference to the accompanying drawings and specific embodiments.

[0053] The following specific embodiments use a track-changing vehicle as an example to describe the technical solution of this application in detail. The method for applying oil to the vehicle-mounted track bolts described in the specific embodiments of this application can be applied to large and medium-sized track engineering vehicles, as well as to the oiling operation of small track trolleys.

[0054] Example 1

[0055] As attached Figure 1 As shown in the attached figure, an embodiment of the method for applying oil to vehicle-mounted rail bolts according to this application is described. Figure 1 To be continued Figure 7 As shown, the oiling device 10 includes: a detection actuator 1, a grease tank 2, a pressurizing device 3, and a control system 4. The detection actuator 1 further includes a sleeper bolt detection sensor 104 and a spray gun 105. The detection actuator 1 is equipped with a lifting mechanism and a locking mechanism. The method specifically includes the following steps:

[0056] During the oiling operation, the locking mechanism is operated and controlled to unlock. After unlocking, the lifting mechanism is operated via the control system 4, and the actuator 1 is detected to descend to the working position. During the movement of the track engineering vehicle 100, the pressurizing device 3 draws grease from the grease tank 2 and pressurizes it to the required pressure. When the sleeper bolt detection sensor 104 detects the sleeper bolt 8, it sends a signal to the control system 4. The control system 4 determines the delay time based on the collected vehicle speed and controls the timing of the solenoid valve 11 opening the (automatic) spray gun 105. After a delay, the output signal controls the spray gun 105 to open, and high-pressure grease is sprayed onto the sleeper bolt 8 through the spray gun 105, ensuring accurate coating. The amount of grease sprayed is adjusted by controlling the spraying time. (See attached image) Figure 16 The image shows the moment when sleeper bolt 8 was detected, as shown in the attached image. Figure 17 The image shows the timing of the grease spraying operation, as shown in the attached image. Figure 18 The figure shows the end time of the grease spraying operation. In the attached figure, L indicates the direction of travel of the rail engineering vehicle 100.

[0057] As attached Figure 8 To be continued Figure 10 As shown, the detection actuator 1 further includes: a mounting bracket 101; an upper fixing plate 123 and a lower fixing plate 124 disposed on the mounting bracket 101; a guide rod 107 disposed between the upper fixing plate 123 and the lower fixing plate 124; and a lifting frame 103 movably disposed on the guide rod 107.

[0058] The lifting mechanism further employs a lifting cylinder 102, one end of which is fixed to the mounting bracket 101, and the other end to the lifting frame 103. A sleeper bolt detection sensor 104 is positioned at the bottom front end of the lifting frame 103. Spray guns 105 are positioned at the bottom of the lifting frame 103, arranged in pairs facing each other laterally, and also symmetrically at an angle to each other longitudinally. During oiling operations, the same sleeper bolt 8 is sprayed with oil in the front-to-back direction using the spray guns 105.

[0059] A limiting ring 109 is further provided on the guide rod 107. The limiting ring 109 can move up and down along the length of the guide rod 107 and is fixed at different height positions on the guide rod 107 to limit the descent height of the lifting frame 103, so that the sleeper bolt detection sensor 104 and the spray gun 105 are within the set height range. An adjusting spring 108 is also further provided on the guide rod 107, and the adjusting spring 108 is located above the limiting ring 109.

[0060] When applying oil, the lifting frame 103 descends, and the downward pressure provided by the lifting cylinder 102 compresses the adjusting spring 108, thereby fine-tuning the height of the lifting frame 103 to meet the requirements of the oiling operation. When the track engineering vehicle 100 is performing oiling operations on a curved section, the lifting cylinder 102 is released by the control system 4, and under the action of the adjusting spring 108, the detection actuator 1 rises to a certain height to compensate for the height impact caused by the side tilt of the track engineering vehicle 100.

[0061] As attached Figure 11 As shown, the detection actuator 1 also includes a rising position detection sensor 112 and a locking position detection sensor 113. The locking mechanism further includes a locking cylinder 106, a backstop spring 118, and a locking pin 119. The rising position detection sensor 112 and the locking position detection sensor 113 are both mounted on the upper fixed plate 123. The fixed end of the locking cylinder 106 is mounted on the upper fixed plate 123, and the movable end is connected to the locking pin 119 after being fitted with a backstop spring 118.

[0062] When the detection actuator 1 is in a non-operating state, it is raised to the traveling position by the lifting cylinder 102. The locking cylinder 106 drives the locking pin 119 to lock the locking part 125 on the upper part of the lifting frame 103 to the upper fixed plate 123. The anti-return spring 118 ensures that the locking pin 119 remains locked even when the air supply to the locking cylinder 106 is cut off in the locked state. When the locking position detection sensor 113 detects the signal from the locking pin 119, the locking cylinder 106 locks the actuator in place. When the detection actuator 1 is in an operating state, the locking cylinder 106 pushes the locking pin 119 to unlock it, and the detection actuator 1 descends to the working position under the action of the lifting cylinder 102.

[0063] As attached Figure 13 As shown, the detection actuator 1 also includes an obstacle avoidance mechanism, which further includes a spring mounting plate 115, a return spring 116, a rotating pin 117, and a guide pin 121. The spring mounting plate 115 is mounted on the lifting frame 103, and one end of the return spring 116 is fixed to the spring mounting plate 115, while the other end is fixed to the guide pin 121. An arc-shaped groove 122 is provided on the lifting frame 103, and the sleeper bolt detection sensor 104 is movably mounted on the lifting frame 103 via the rotating pin 117. The guide pin 121 is rotatably connected to the sleeper bolt detection sensor 104, and the guide pin 121 is located in the arc-shaped groove 122. The sleeper bolt detection sensor 104 can rotate around the rotating pin 117, and the guide pin 121 limits the rotation range of the sleeper bolt detection sensor 104.

[0064] When the sleeper bolt detection sensor 104 collides with the sleeper bolt 8, the sleeper bolt detection sensor 104 automatically swings to avoid the obstacle. After the obstacle avoidance action is completed, the reset spring 116 pulls the guide pin 121 to automatically reset the sleeper bolt detection sensor 104.

[0065] The obstacle avoidance mechanism also includes a plunger 120, which is mounted on the lifting frame 103. When the rail engineering vehicle 100 travels at high speed, the plunger 120 locks the sleeper bolt detection sensor 104 to prevent the sleeper bolt detection sensor 104 from swinging.

[0066] Install the detection actuator 1 of the oiling device 10 near the wheel 9 of the rail engineering vehicle 100. Install the grease tank 2, pressurizing device 3, and control system 4 of the oiling device 10 on the frame 14 or inside the driver's cab 16 of the rail engineering vehicle 100. Install the detection actuator 1 on the bogie 5 of the rail engineering vehicle 100 or the end beam 15 of the satellite trolley.

[0067] As attached Figure 14 and attached Figure 15As shown, the grease tank 2 is further equipped with an oil level viewing window 201, a heater 202, a temperature sensor 203, an oil filler port 204, an oil suction filter 205, a three-way valve 206, and a ball valve 207. The heater 202 is inserted into the grease tank 2 for heating the grease. The oil level viewing window 201 is used to observe the grease level in the grease tank 2. When the temperature sensor 203 detects that the grease temperature is lower than the set temperature, the heater 202 heats the grease to the set temperature and then stops heating, increasing the fluidity of the grease when the ambient temperature is low. When the ball valve 207 is open, the three-way valve 206 is connected to the oil suction filter 205 and the oil inlet of the pressurizing device 3 via a pipeline. The pressurizing device 3 draws out the grease through the oil suction filter 205 and pressurizes it.

[0068] This embodiment employs a pneumatically controlled automatic spray gun. The solenoid valve 11 in the air circuit 12 controls the on / off state of the spray gun 105. This method is suitable for atomizing and applying anti-rust and anti-corrosion grease specifically for railway sleeper bolts. It also enables higher-frequency on / off control, significantly improving the efficiency of the oiling device 10. The oiling device 10 described in Embodiment 2 has a simple structure and is suitable for automatic application of high-viscosity anti-rust grease, offering advantages such as fast operation speed and good oiling effect.

[0069] Example 2

[0070] As attached Figure 1 To be continued Figure 7 As shown, one embodiment of the method described in Example 1 is based on an on-board rail bolt lubrication device 10. The lubrication device 10 runs on the rail 6 with the rail engineering vehicle 100 and specifically includes: a detection actuator 1, a grease tank 2, a pressurizing device 3, and a control system 4. The installation positions of each component are shown in the attached diagram. Figure 2 As shown. The detection actuator 1 further includes a sleeper bolt detection sensor 104 and a spray gun 105. The detection actuator 1 is installed on the bogie 5 near the wheel 9. In this embodiment, it is installed on the end beam 15 of the bogie 5. The sleeper bolt detection sensor 104 is installed at the lowest part of the detection actuator 1. Its main function is to detect the position of the railway track spikes (i.e., sleeper bolts 8) and transmit the detection signal to the control system 4. The grease in the grease tank 2 is connected to the oil passage 13 of the spray gun 105 through the pressurizing device 3. When the grease is applied, the compressed air of the vehicle is used as power. The pressurizing device 3 draws grease from the grease tank 2 and pressurizes it to the required pressure. When the sleeper bolt detection sensor 104 (passing above the sleeper bolt 8) detects the sleeper bolt 8, it sends a signal to the control system 4. The control system 4 determines the delay time according to the collected vehicle speed. After the delay, the output signal controls the air passage 12 to open through the solenoid valve 11. The high-pressure grease is sprayed onto the target sleeper bolt 8 of the sleeper 7 through the spray gun 105.

[0071] As attached Figure 8 To be continued Figure 10 As shown, the detection actuator 1 has functions such as lifting, locking, road stud detection, spraying, and sensor obstacle avoidance, and further includes:

[0072] Mounting bracket 101; Mounting bracket 101 is the main mounting body of the detection actuator 1. All other components of the detection actuator 1 are connected to the vehicle body through mounting bracket 101; Mounting bracket 101 is mounted on mounting plate 110 of end beam 15 by bolts. Shock-absorbing pads 111 are also fitted on the bolts between mounting bracket 101 and mounting plate 110.

[0073] The upper fixing plate 123 and the lower fixing plate 124 are provided on the mounting bracket 101;

[0074] The guide rod 107 is disposed between the upper fixed plate 123 and the lower fixed plate 124; the guide rod 107 is fixed on the mounting bracket 101, the two guide rods 107 are arranged in parallel, and the guide rod 107 provides guidance for the lifting and lowering movement of the other components of the actuator;

[0075] A lifting frame 103 is movably mounted on the guide rod 107; a sliding sleeve may also be mounted on the lifting frame 103, and the sliding sleeve and the guide rod 107 form a kinematic relationship to realize the lifting action;

[0076] A lifting cylinder 102, with one end fixed to the mounting bracket 101 and the other end fixed to the lifting frame 103, provides power for the lifting movement of the detection actuator 1.

[0077] Sleeper bolt detection sensor 104 is installed at the bottom front end of the lifting frame 103;

[0078] Located at the bottom of the lifting frame 103, and along the horizontal direction (as shown in the attached diagram). Figure 9 The spray guns 105, arranged opposite each other in pairs (as shown in direction A), are positioned longitudinally (as shown in the attached diagram). Figure 10The spray guns 105, arranged symmetrically at an angle (as shown in direction B), spray the same sleeper bolt 8. To achieve a good coating effect on the surface of the sleeper bolt 8, two spray guns 105 are arranged symmetrically at an angle along the working direction to perform cross-spraying on the same sleeper bolt 8. As a typical specific embodiment of the present invention, one detection actuator 1 is equipped with four spray guns 105, and a total of eight spray guns 105 are equipped on the detection actuators 1 corresponding to the two sides of the track 6. The high-pressure oil pipes of the four (automatic) spray guns 105 of the same detection actuator 1 can be connected in series. In addition, oil supply to the four spray guns 105 can also be achieved by using a parallel connection through pipeline installation changes. However, compared with parallel oil supply, the series oil supply method significantly reduces the amount of oil pipe used. The method of spraying the same sleeper bolt with two spray guns 105 arranged symmetrically at an angle in this embodiment has a better coating effect than the prior art of using one nozzle to spray the sleeper bolt 8 vertically.

[0079] A limit ring 109 is provided on the guide rod 107. The limit ring 109 can move up and down along the length of the guide rod 107 and is fixed at different height positions on the guide rod 107 to limit the descent height of the lifting frame 103, so that the sleeper bolt detection sensor 104 and the spray gun 105 are within the set height range, thereby meeting the operation requirements under different track conditions.

[0080] An adjusting spring 108 is also provided on the guide rod 107, and the adjusting spring 108 is located above the limiting ring 109. When oiling is performed, the lifting frame 103 descends, and the downward pressure provided by the lifting cylinder 102 compresses the adjusting spring 108. By controlling the presence or absence of the downward pressure of the lifting cylinder 102, the extension and retraction of the adjusting spring 108 can be achieved, thereby fine-tuning the height of the lifting frame 103 to meet the requirements of the oiling operation.

[0081] As attached Figure 11As shown, the detection and execution mechanism 1 also includes a locking mechanism, a rising position detection sensor 112, and a locking position detection sensor 113. The locking mechanism further includes a locking cylinder 106, a stop spring 118, and a locking pin 119. Both the rising position detection sensor 112 and the locking position detection sensor 113 are mounted on the upper fixed plate 123. The fixed end of the locking cylinder 106 is mounted on the upper fixed plate 123, and the movable end is externally fitted with the stop spring 118 and connected to the locking pin 119. The function of the rising position detection sensor 112 is to detect whether the lifting frame 103 has risen to the correct position. Only after the rising position detection sensor 112 detects that the lifting frame 103 has risen to the correct position will the locking action be executed; otherwise, the locking action cannot be triggered, and the control system 4 will display a fault and issue an alarm. The locking cylinder 106 provides power for the locking action, pushing the locking pin 119 to move, thus realizing the locking and unlocking functions. When the detection actuator 1 is not in operation, under the action of the lifting cylinder 102, the detection actuator 1 is lifted to the driving position. The locking mechanism can lock the moving parts to ensure that they remain stationary in the driving position, thereby ensuring driving safety. The locking cylinder 106 drives the locking pin 119 to achieve the locking between the locking part 125 on the upper part of the lifting frame 103 and the upper fixed plate 123. (See attached...) Figure 12 As shown, the lifting frame 103 is equipped with an air distribution block 114, which distributes the air source controlled by the solenoid valve group to different spray guns 105, providing a power source for the opening and closing of the spray guns 105. The anti-lock spring 118 ensures that the locking pin 119 remains locked even when the locking cylinder 106 cuts off the air source in the locked state, ensuring reliable locking. The control system 4 only considers the locking cylinder 106 to be locked when the locking position detection sensor 113 detects the signal from the locking pin 119; otherwise, a fault alarm will be triggered. When the detection actuator 1 is in working condition, the locking cylinder 106 pushes the locking pin 119 to unlock, and under the action of the lifting cylinder 102, the detection actuator 1 descends to the working position.

[0082] When the track engineering vehicle 100 is performing oiling operations, the sleeper bolt detection sensor 104 is located below the rail surface of the track 6, close to the sleeper bolts 8. If there is an error in the height of the sleeper bolts 8 or if there are foreign objects on the track, the sleeper bolt detection sensor 104 may collide with the obstacle, causing damage to the sensor. (See attached image) Figure 13As shown, the detection actuator 1 also includes an obstacle avoidance mechanism, which further includes a spring mounting plate 115, a return spring 116, a rotating pin 117, a plunger 120, and a guide pin 121. The obstacle avoidance mechanism allows the sleeper bolt detection sensor 104 to swing and pass over obstacles when it encounters one, reducing collision damage to the sleeper bolt detection sensor 104. The spring mounting plate 115 is mounted on the lifting frame 103. One end of the return spring 116 is fixed to the spring mounting plate 115, and the other end is fixed to the guide pin 121. An arc-shaped groove 122 is provided on the lifting frame 103, and the sleeper bolt detection sensor 104 is movably mounted on the lifting frame 103 via the rotating pin 117. The guide pin 121 is rotatably connected to the sleeper bolt detection sensor 104 and is located within the arc-shaped groove 122. The sleeper bolt detection sensor 104 can rotate around the rotating pin 117, and the guide pin 121 limits the rotation range of the sleeper bolt detection sensor 104. When the sleeper bolt detection sensor 104 collides with the sleeper bolt 8, the sleeper bolt detection sensor 104 can automatically swing to avoid the obstacle. After the obstacle avoidance action is completed, the return spring 116 pulls the guide pin 121 to automatically reset the sleeper bolt detection sensor 104. The plunger 120 is set on the lifting frame 103. When the track engineering vehicle 100 is traveling at high speed, the plunger 120 locks the sleeper bolt detection sensor 104 to prevent the sleeper bolt detection sensor 104 from swinging.

[0083] As attached Figure 14 and attached Figure 15 As shown, the grease tank 2 is further equipped with an oil level viewing window 201, a heater 202, a temperature sensor 203, a filler port 204, a suction filter 205, a three-way valve 206, and a ball valve 207. The oil level viewing window 201 is located on the side of the grease tank 2 and is used to observe the grease level inside. The heater 202 is inserted into the grease tank 2 for heating the grease. The temperature sensor 203 is installed on the side of the grease tank 2 for detecting the temperature of the grease inside. The filler port 204 is located on the side of the grease tank for adding grease. The suction filter 205, the three-way valve 206, and the ball valve 207 are installed on the front of the grease tank 2. When the temperature sensor 203 detects that the grease temperature is lower than the set temperature, the heater 202 heats the grease to the set temperature and then stops heating, increasing the fluidity of the grease when the ambient temperature is low. When the ball valve 207 is in the open state, the three-way valve 206 is connected to the oil inlet of the pressurizing device 3 through a pipeline, and the pressurizing device 3 draws out the grease and pressurizes it through the oil suction filter 205.

[0084] Example 3

[0085] As attached Figure 2As shown, one embodiment of the method described in Example 1 is based on a rail engineering vehicle 100, specifically including: an on-board rail bolt oiling device as described in Example 2, wherein the detection actuator 1 of the oiling device 10 is installed near the wheel 9 of the rail engineering vehicle 100. As a typical specific embodiment of the present invention, the rail engineering vehicle 100 is further configured as a rail-changing vehicle.

[0086] The grease tank 2, pressurizing device 3, and control system 4 of the oiling operation device 10 are installed on the frame 14 of the rail-changing car or inside the driver's cab 16. The detection actuator 1 is installed on the bogie 5 of the rail-changing car or the end beam 15 of the satellite trolley.

[0087] In this embodiment, the oiling device 10 is integrated and installed on the rail-changing vehicle, enabling oiling operations to be performed simultaneously with rail work, greatly improving work efficiency. Furthermore, the oiling device 10 has a simple structure, small size, and light weight, making it suitable for oiling operations under continuous train travel, with fast operation speed and high efficiency.

[0088] It should be noted that, in the embodiments of this application, the lifting cylinder 102 and the locking cylinder 106 can also adopt similar drive structures such as hydraulic cylinders, electric cylinders, lead screws, and rack and pinion gears, all of which are within the scope of protection claimed in this application. Furthermore, the pressurizing device 3 in this embodiment can adopt a pneumatic plunger pump, electric pump, gear pump, or other structural types, and the motion mechanism of the cylindrical guide rod 107 cooperating with the sliding sleeve can also be replaced by guide rails of other structures.

[0089] In the description of this application, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly set on the other element or indirectly set on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0090] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0091] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0092] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0093] By implementing the technical solution of the on-board rail bolt oiling operation method described in the specific embodiments of this application, the following technical effects can be achieved:

[0094] (1) The method for applying oil to rail bolts described in the specific embodiments of this application uses a pressurizing device to pressurize the rust-preventive grease to the pressure required for atomization. Then, the air source of the automatic spray gun is controlled by a solenoid valve to control the on / off of the rust-preventive grease spraying. The high-pressure rust-preventive grease is then atomized and sprayed out through the spray gun. This solves the technical problem that the hydraulic solenoid valve cannot control the rust-preventive grease at high frequency, and enables high-quality spraying of rail bolts in an all-round and effective manner.

[0095] (2) The method for applying oil to vehicle track bolts described in the specific embodiments of this application achieves good atomization spraying effect of the rust-preventive grease by controlling the on and off of the rust-preventive grease at high frequency. When the spray gun moves with the vehicle to perform continuous spraying, the sprayed rust-preventive grease can effectively cover the surface of the track bolts in all directions, which greatly improves the efficiency of the oiling operation.

[0096] (3) The method for applying oil to rail bolts in the specific embodiments of this application uses two spray guns arranged at a certain angle to apply oil to a target rail sleeper bolt at the same time, which solves the technical problem that some of the sprayed anti-rust grease is blocked by the upper end face of the rail sleeper bolt, resulting in insufficient coverage of the cylindrical surface of the rail sleeper bolt.

[0097] (4) The vehicle-mounted rail bolt oiling operation method described in the specific embodiments of this application uses a detection execution mechanism installed close to the wheel position, which avoids the technical problem that the oiling operation device cannot be aligned with the rail when installed in the middle of the vehicle, and at the same time greatly simplifies the structure of the oiling operation device.

[0098] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0099] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with reference to preferred embodiments, it is not intended to limit this application. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this application using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the spirit and technical essence of this application. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solutions of this application shall still fall within the protection scope of the technical solutions of this application.

Claims

1. A method for applying oil to vehicle-mounted rail bolts, characterized in that, The oiling device (10) includes: a detection actuator (1), a grease tank (2), a pressurizing device (3), and a control system (4); the detection actuator (1) includes a sleeper bolt detection sensor (104) and a spray gun (105), and the detection actuator (1) is equipped with a lifting mechanism and a locking mechanism; the method includes the following steps: When applying oil, the locking mechanism is operated and controlled to perform the unlocking action. After unlocking, the lifting mechanism is operated through the control system (4) to detect the execution mechanism (1) to descend to the working position. During the movement of the track engineering vehicle (100), the pressurizing device (3) draws oil from the grease tank (2) and pressurizes it to the required pressure. When the sleeper bolt detection sensor (104) detects the sleeper bolt (8), it sends a signal to the control system (4). The control system (4) determines the delay time according to the collected vehicle speed, outputs the signal, and controls the spray gun (105) to open after the delay. The high-pressure grease is sprayed onto the sleeper bolt (8) through the spray gun (105). The amount of grease sprayed is adjusted by controlling the spraying time. The detection execution mechanism (1) includes: a mounting bracket (101); an upper fixing plate (123) and a lower fixing plate (124) disposed on the mounting bracket (101); a guide rod (107) disposed between the upper fixing plate (123) and the lower fixing plate (124); and a lifting frame (103) movably disposed on the guide rod (107). The lifting mechanism adopts a lifting cylinder (102), one end of which is fixed to the mounting bracket (101) and the other end is fixed to the lifting frame (103). The sleeper bolt detection sensor (104) is disposed at the bottom front end of the lifting frame (103). The spray gun (105) is disposed at the bottom of the lifting frame (103) and is arranged opposite to each other in the transverse direction. The spray guns (105) are arranged opposite to each other in the longitudinal direction and are also arranged at a symmetrical angle. When the oiling operation is performed, the same sleeper bolt (8) is sprayed in the front-back direction through the spray gun (105). The detection actuator (1) further includes a rising position detection sensor (112) and a locking position detection sensor (113). The locking mechanism includes a locking cylinder (106), a backstop spring (118), and a locking pin (119). The rising position detection sensor (112) and the locking position detection sensor (113) are both mounted on the upper fixed plate (123). The fixed end of the locking cylinder (106) is mounted on the upper fixed plate (123), and the movable end is fitted with a backstop spring (118) and connected to the locking pin (119). When the detection actuator (1) is in a non-working state, under the action of the lifting cylinder (102), the detection actuator (1) is lifted to the position of the driving state; the locking cylinder (106) drives the locking pin (119) to achieve the locking between the locking part (125) on the upper part of the lifting frame (103) and the upper fixed plate (123); the anti-reverse spring (118) can keep the locking pin (119) in the locked state when the locking cylinder (106) cuts off the air source; when the locking position detection sensor (113) detects the signal of the locking pin (119), the locking cylinder (106) locks in place; when the detection actuator (1) is in a working state, the locking cylinder (106) pushes the locking pin (119) to unlock, and under the action of the lifting cylinder (102), the detection actuator (1) descends to the working position.

2. The method for applying oil to vehicle-mounted rail bolts according to claim 1, characterized in that: A limiting ring (109) is provided on the guide rod (107). The limiting ring (109) can move up and down along the length of the guide rod (107) and be fixed at different height positions on the guide rod (107) to limit the descent height of the lifting frame (103) so that the sleeper bolt detection sensor (104) and the spray gun (105) are within the set height range.

3. The method for applying oil to vehicle-mounted rail bolts according to claim 2, characterized in that: An adjusting spring (108) is also provided on the guide rod (107), and the adjusting spring (108) is located above the limiting ring (109); When the oiling operation is performed, the lifting frame (103) descends, and the downward pressure provided by the lifting cylinder (102) compresses the adjusting spring (108), thereby finely adjusting the height of the lifting frame (103) to meet the requirements of the oiling operation. When the track engineering vehicle (100) performs the oiling operation on the curve section, the lifting cylinder (102) is controlled by the control system (4) to release the downward pressure. Under the action of the adjusting spring (108), the detection actuator (1) rises to a certain height to compensate for the height effect caused by the tilt of the track engineering vehicle (100).

4. The method for applying oil to vehicle-mounted rail bolts according to claim 1, 2, or 3, characterized in that: The detection actuator (1) further includes an obstacle avoidance mechanism, which includes a spring mounting plate (115), a return spring (116), a rotating pin (117), and a guide pin (121). The spring mounting plate (115) is mounted on the lifting frame (103), and one end of the return spring (116) is fixed to the spring mounting plate (115), while the other end is fixed to the guide pin (121). An arc-shaped groove (122) is provided on the lifting frame (103), and the sleeper... The bolt detection sensor (104) is movably mounted on the lifting frame (103) via a rotating pin (117); the guide pin (121) is rotatably connected to the sleeper bolt detection sensor (104), and the guide pin (121) is located in the arc groove (122); the sleeper bolt detection sensor (104) can rotate around the rotating pin (117), and the guide pin (121) limits the rotation range of the sleeper bolt detection sensor (104); When the sleeper bolt detection sensor (104) collides with the sleeper bolt (8), the sleeper bolt detection sensor (104) automatically swings to avoid the obstacle. After the obstacle avoidance action is completed, the reset spring (116) pulls the guide pin (121) to automatically reset the sleeper bolt detection sensor (104).

5. The method for applying oil to vehicle-mounted rail bolts according to claim 4, characterized in that: The obstacle avoidance mechanism also includes a plunger (120), which is mounted on the lifting frame (103). When the track engineering vehicle (100) is traveling at high speed, the plunger (120) locks the sleeper bolt detection sensor (104) to prevent the sleeper bolt detection sensor (104) from swinging.

6. The method for applying oil to vehicle-mounted rail bolts according to claim 1, 2, 3 or 5, characterized in that: The detection actuator (1) of the oiling device (10) is installed near the wheel (9) of the rail engineering vehicle (100).

7. The method for applying oil to vehicle-mounted rail bolts according to claim 6, characterized in that: The grease tank (2), pressurizing device (3) and control system (4) of the oiling operation device (10) are installed on the frame (14) of the rail engineering vehicle (100) or in the driver's cab (16).

8. The method for applying oil to vehicle-mounted rail bolts according to claim 7, characterized in that: The detection actuator (1) is installed on the bogie (5) of the track engineering vehicle (100) or the end beam (15) of the satellite vehicle.

9. The method for applying oil to vehicle-mounted rail bolts according to claim 1, 2, 3, 5, 7 or 8, characterized in that: The grease tank (2) is equipped with an oil level window (201), a heater (202), a temperature sensor (203), a filler port (204), an oil suction filter (205), a three-way valve (206), and a ball valve (207); the heater (202) is inserted into the grease tank (2) for heating the grease in the grease tank (2), and the oil level window (201) is used to observe the liquid level of the grease in the grease tank (2); When the temperature sensor (203) detects that the grease temperature is lower than the set temperature, the heater (202) heats the grease to the set temperature and then stops heating, increasing the fluidity of the grease when the ambient temperature is low; when the ball valve (207) is in the open state, the three-way valve (206) is connected to the oil inlet of the oil suction filter (205) and the pressurizing device (3) in sequence through the pipeline, and the pressurizing device (3) sucks out the grease and pressurizes it through the oil suction filter (205).

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