阅读说明：本技术 一种轨枕螺栓自动喷涂油装置和喷涂油方法 (Automatic sleeper bolt oil spraying device and method ) 是由 刘宇 杜志兵 辛亚东 蔡楠 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种轨枕螺栓自动喷涂油装置和喷涂油方法,安装支架安装在捣固车的起拨道装置上；安装底板固定安装在安装支架上,安装支架开设有腔体,丝杠转动安装在腔体内,电机安装在安装支架的一端,且电机与丝杠连接；滑块设置在腔体内且与丝杠螺纹连接,限位件贴合设置在安装底板的一侧,且限位件与滑块连接；限位件具有向下的安装柱,第三接近开关和喷油嘴安装在安装柱上；油路风路系统与喷油嘴连接；控制系统与第一接近开关、第二接近开关、第三接近开关和油路风路系统连接。本发明通过第三接近开关实现对轨枕螺栓的自动定位、控制系统控制喷油嘴对轨枕螺栓进行自动喷涂,达到对轨枕螺栓自动化喷涂的目的。(The invention discloses an automatic sleeper bolt oil spraying device and an automatic sleeper bolt oil spraying method.A mounting bracket is arranged on a track lifting and lining device of a tamping car; the mounting bottom plate is fixedly mounted on the mounting bracket, the mounting bracket is provided with a cavity, the screw rod is rotatably mounted in the cavity, the motor is mounted at one end of the mounting bracket, and the motor is connected with the screw rod; the sliding block is arranged in the cavity and is in threaded connection with the lead screw, the limiting piece is attached to one side of the mounting base plate and is connected with the sliding block; the limiting piece is provided with a downward mounting column, and the third proximity switch and the oil nozzle are mounted on the mounting column; the oil path air path system is connected with the oil nozzle; the control system is connected with the first proximity switch, the second proximity switch, the third proximity switch and the oil path and air path system. According to the automatic spraying device, the automatic positioning of the sleeper bolt is realized through the third proximity switch, the oil nozzle is controlled by the control system to automatically spray the sleeper bolt, and the purpose of automatically spraying the sleeper bolt is achieved.)

1. The utility model provides an automatic oil spraying device of sleeper bolt which characterized in that: the device comprises a mounting bracket (1), a sliding table assembly (2), a control system (3) and an oil path and air path system (4);

the mounting bracket (1) is mounted on a track lifting and shifting device of the tamping vehicle; two ends of the mounting bracket (1) extend out of the track lifting and lining device; the two ends of the mounting bracket (1) are respectively provided with the sliding table assembly (2);

the sliding table assembly (2) comprises an installation bottom plate (21), a sliding block (23), a lead screw (22), a limiting piece (24), a first proximity switch (26), a second proximity switch (27), a third proximity switch (28), an oil nozzle (29) and a motor (25);

the mounting base plate (21) is fixedly mounted on the mounting bracket (1), the mounting bracket (1) is provided with a cavity, a screw rod is rotatably mounted in the cavity, the motor (25) is mounted at one end of the mounting bracket (1), and the motor (25) is connected with the screw rod; the sliding block (23) is arranged in the cavity and is in threaded connection with the lead screw, the limiting piece (24) is attached to one side of the mounting base plate (21), and the limiting piece (24) is connected with the sliding block (23);

the first proximity switch (26) and the second proximity switch (27) are respectively installed at two ends of the side surface of the installation bottom plate (21) where the limiting piece (24) is arranged; the stop member (24) has a downwardly directed mounting post on which the third proximity switch (28) and the fuel injector (29) are mounted;

the oil path air path system (4) is connected with the oil nozzle (29);

the control system (3) is connected with the first proximity switch (26), the second proximity switch (27), the third proximity switch (28) and the oil path air path system (4).

2. The automatic sleeper bolt oiling device that sprays of claim 1, characterized in that: the mounting bracket (1) is provided with two mounting brackets (1) which are horizontally arranged.

3. The automatic sleeper bolt oiling device that sprays of claim 1, characterized in that: the control system (3) comprises a power supply (31), a controller (32) and a driver (33);

the power supply (31) is respectively connected with the controller (32) and the driver (33), the controller (32) is connected with the driver (33), and the driver (33) is connected with the stepping motor (25); the controller (32) is connected to the first proximity switch (26), the second proximity switch (27), and the third proximity switch (28), respectively.

4. Automatic sleeper bolt spraying oil device of claim 3, characterized in that: the power supply (31) is a power supply of the tamping vehicle.

5. The automatic sleeper bolt oiling device that sprays of claim 1, characterized in that: the oil path air path system (4) comprises an oil tank (41), a pressure reducing valve (42) and an electromagnetic valve (43);

the oil tank (41) is communicated with the oil nozzle (29) through an oil pipe; one end of the pressure reducing valve (42) is communicated with an air source, the other end of the pressure reducing valve is connected with the oil spray nozzle (29) through an air pipe, the electromagnetic valve (43) is arranged between the pressure reducing valve (42) and the oil spray nozzle (29), and the electromagnetic valve (43) is connected with the controller (32).

6. Automatic sleeper bolt spraying oil device of claim 5, characterized in that: the air source is an air source on the tamping car.

7. Automatic sleeper bolt spraying oil device of claim 5, characterized in that: the oil path air path system (4) comprises a filter, and the filter is installed at one end, connected with the air source, of the pressure reducing valve (42).

8. The automatic sleeper bolt oiling device that sprays of claim 1, characterized in that: the lead screw (22) is a ball screw.

9. The automatic sleeper bolt oiling device that sprays of claim 1, characterized in that: the motor (25) is a stepping motor.

10. A method of applying oil by using the automatic sleeper bolt oil applying apparatus as claimed in claims 1 to 9, characterized in that: the method comprises the following steps:

s1, when the slide block (23) moves from the first proximity switch (26) to the second proximity switch (27)

The initial position of the sliding block (23) is at a first proximity switch (26), when the tamping vehicle has a down-insertion tamping action, an action signal of a control system (3) is provided, the control system (3) controls a motor (25) to start, the motor (25) drives a lead screw (22) to rotate, the lead screw (22) rotates to drive the sliding block (23) to move towards a second proximity switch (27) so as to drive an oil nozzle (29) and a third proximity switch (28) to move together, during the moving process, when the third proximity switch (28) senses a bolt, the third proximity switch (28) sends a sensing signal to a controller (32), the controller (32) controls the motor (25) to pause through a driver (33) so as to enable the sliding block (23) to pause the moving, and simultaneously a timer in the controller (32) is conducted so as to control an electromagnetic valve (43) to be conducted so as to enable the oil nozzle (29) to spray oil, after 0.5S, the timer is turned off, the electromagnetic valve (43) is turned off, and the oil nozzle (29) finishes oil injection; then the control system (3) controls the motor (25) to continue rotating, the sliding block (23) continues moving towards the second proximity switch (27) until the sliding block (23) moves to the second proximity switch (27), a sensing signal of the second proximity switch (27) is transmitted to the controller (32), and the controller (32) controls the motor (25) to stop through the driver (33);

s2, when the slide block (23) moves from the second proximity switch (27) to the first proximity switch (26)

When the tamping vehicle moves to the next sleeper and carries out the lower inserting tamping action, an action signal of a control system (3) is provided, the control system (3) controls a motor (25) to rotate reversely, the reverse rotation of a ball screw (22) drives a sliding block (23) to move towards a first proximity switch (26), in the moving process, when a third proximity switch (28) senses a bolt, the third proximity switch (28) sends a sensing signal to a controller (32), the controller (32) controls the motor (25) to pause through a driver (33), so that the sliding block (23) pauses to move, meanwhile, a timer in the controller (32) is switched on, so that an electromagnetic valve (43) is controlled to be switched on, so that an oil nozzle (29) injects oil, the timer is switched off after 0.5S, the electromagnetic valve (43) is switched off, and the oil injection nozzle (29) finishes oil injection; and then the control system (3) controls the motor (25) to continue to rotate reversely, the sliding block (23) continues to move towards the first proximity switch (26) until the sliding block (23) moves to the first proximity switch (26), a sensing signal of the first proximity switch (26) is transmitted to the controller (32), and the controller (32) controls the motor (25) to stop through the driver (33).

Technical Field

The invention relates to the technical field of railway line maintenance tools, in particular to an automatic sleeper bolt oil spraying device and an oil spraying method.

Background

In the existing railway line, a bolt is a key part for connecting and fixing a sleeper and a rail, plays an important role in guaranteeing driving safety, but is easy to corrode and rust due to the influence of the external environment, so that the bolt is broken, and finally railway safety accidents are caused; therefore, the bolt needs to be regularly oiled and maintained, the bolt and the nut are prevented from being adhered together, and the service life of the bolt is prolonged.

In the prior art, the sleeper bolt is usually maintained by manually oiling, so that the working efficiency is low, the labor cost is high, and the maintenance cost is increased; and the train operation interval is utilized to carry out manual operation, so that personal safety risks exist.

The invention patent application with the publication number of CN104308789B discloses a sleeper bolt oiling wrench, which can realize the impact rotation of a hexagonal wrench head at the lower end through an impact device, can control an oil injector to inject oil by holding a brake handle by a hand, is simple and convenient to use and operate and can be operated by a single person. Although the application improves the manual oil spraying efficiency, the manual oil spraying efficiency still needs to be operated by manpower, and the manual oil spraying efficiency is not safe enough and lacks of automation.

Disclosure of Invention

The invention aims to solve the technical problem of how to design efficient and safe automatic sleeper bolt oiling equipment and an automatic sleeper bolt oiling spraying method.

In order to solve the technical problems, the invention provides the following technical scheme:

an automatic sleeper bolt oil spraying device comprises a mounting bracket, a sliding table assembly, a control system and an oil way and air path system;

the mounting bracket is mounted on a track lifting and shifting device of the tamping vehicle; two ends of the mounting bracket extend out of the track lifting and lining device; the two ends of the mounting bracket are respectively provided with the sliding table assembly;

the sliding table assembly comprises an installation bottom plate, a sliding block, a screw rod, a limiting piece, a first proximity switch, a second proximity switch, a third proximity switch, an oil nozzle and a motor;

the mounting bottom plate is fixedly mounted on the mounting bracket, the mounting bracket is provided with a cavity, the screw rod is rotatably mounted in the cavity, the motor is mounted at one end of the mounting bracket, and the motor is connected with the screw rod; the sliding block is arranged in the cavity and is in threaded connection with the lead screw, the limiting piece is attached to one side of the mounting base plate and is connected with the sliding block;

the first proximity switch and the second proximity switch are respectively installed at two ends of the side face, provided with the limiting piece, of the installation bottom plate; the limiting piece is provided with a downward mounting column, and the third proximity switch and the oil nozzle are mounted on the mounting column;

the oil path air path system is connected with the oil nozzle;

the control system is connected with the first proximity switch, the second proximity switch, the third proximity switch and the oil path and air path system.

The advantages are that: according to the automatic spraying device, the automatic positioning of the sleeper bolt is realized through the third proximity switch, the oil nozzle is controlled by the control system to automatically spray the sleeper bolt, and the purpose of automatically spraying the sleeper bolt is achieved.

Preferably, the mounting brackets are provided with two and two mounting brackets are arranged horizontally.

Preferably, the control system comprises a power supply, a controller and a driver;

the power supply is respectively connected with the controller and the driver, the controller is connected with the driver, and the driver is connected with the stepping motor; the controller is respectively connected with the first proximity switch, the second proximity switch and the third proximity switch.

Preferably, the power supply is a power supply of the tamping vehicle.

Preferably, the oil path air path system comprises an oil tank, a pressure reducing valve and an electromagnetic valve;

the oil tank is communicated with the oil nozzle through an oil pipe; one end of the pressure reducing valve is communicated with an air source, the other end of the pressure reducing valve is connected with the oil spray nozzle through an air pipe, the electromagnetic valve is arranged between the pressure reducing valve and the oil spray nozzle, and the electromagnetic valve is connected with the controller.

Preferably, the air source is an air source on the tamping vehicle.

Preferably, the oil path air path system includes a filter, and the filter is installed at one end of the pressure reducing valve connected to the air source.

Preferably, the screw is a ball screw.

Preferably, the motor is a stepper motor.

An automatic oil spraying method for sleeper bolts comprises the following steps:

s1, when the slide block moves from the first proximity switch to the second proximity switch

The initial position of the sliding block is at the first proximity switch, when the tamping vehicle performs a lower insertion tamping action, a control system action signal is provided, the control system controls the motor to start, the motor drives the lead screw to rotate, the lead screw rotates to drive the sliding block to move towards the second proximity switch, so that the oil nozzle and the third proximity switch are driven to move together, when the third proximity switch senses a bolt in the moving process, the third proximity switch sends a sensing signal to the controller, the controller controls the motor to pause through the driver, so that the sliding block pauses to move, meanwhile, the timer in the controller is switched on, so that the electromagnetic valve is controlled to be switched on, so that the oil nozzle sprays oil, the timer is switched off after 0.5S, the electromagnetic valve is switched off, and the oil nozzle finishes oil spraying; then the control system controls the motor to continue rotating, the sliding block continues moving towards the second proximity switch until the sliding block moves to the second proximity switch, an induction signal of the second proximity switch is transmitted to the controller, and the controller controls the motor to stop through the driver;

s2, when the slide block moves from the second proximity switch to the first proximity switch

When the tamping vehicle moves to the next sleeper and carries out the lower inserting tamping action, a control system action signal is provided, the control system controls the motor to rotate reversely, the reverse rotation of the ball screw drives the sliding block to move towards the first proximity switch, in the moving process, when the third proximity switch senses the bolt, the third proximity switch sends a sensing signal to the controller, the controller controls the motor to pause through the driver, so that the sliding block stops moving, meanwhile, the timer in the controller is switched on, so that the electromagnetic valve is controlled to be switched on, so that the oil nozzle sprays oil, the timer is switched off after 0.5S, the electromagnetic valve is switched off, and the oil nozzle finishes spraying oil; and then the control system controls the motor to continuously rotate reversely, the sliding block continuously moves towards the first proximity switch until the sliding block moves to the first proximity switch, the sensing signal of the first proximity switch is transmitted to the controller, and the controller controls the motor to stop through the driver.

Compared with the prior art, the invention has the beneficial effects that:

(1) the oiling device is integrated on the tamping car, so that oiling operation is carried out while tamping operation of the tamping car is carried out, two different maintenance projects with two similar railway maintenance periods are integrated together, and the working hour investment is reduced.

(2) According to the automatic spraying device, the automatic positioning of the sleeper bolt is realized through the third proximity switch, the oil nozzle is controlled by the control system to automatically spray the sleeper bolt, and the purpose of automatically spraying the sleeper bolt is achieved. The device completely replaces manpower and reduces personal safety risks.

(3) According to the automatic oil spraying method for the sleeper bolts, the sleeper bolts are sprayed with oil in a timed and quantitative mode through the timer, the fact that the oil spraying amount of each sleeper bolt is approximately the same is guaranteed, meanwhile, the oil spraying amount of the sleeper bolts can reach the optimal state through adjusting the time of the timer, and the phenomenon that the sleeper bolts are rusted due to the fact that the oil spraying amount is too small and the oil is wasted due to the fact that the oil spraying amount is too large is avoided.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a top view of an embodiment of the present invention;

FIG. 3 is a schematic wiring diagram of a control system of an embodiment of the present invention;

fig. 4 is a schematic diagram of an oil path system according to an embodiment of the present invention.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating 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 the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 4, the embodiment discloses an automatic sleeper bolt oil spraying device, which includes a mounting bracket 1, a sliding table assembly 2, a control system 3, and an oil path and air path system 4;

the mounting bracket 1 is mounted on a track lifting and shifting device of the tamping vehicle; the mounting bracket 1 is provided with two and two mounting brackets 1 arranged horizontally.

Referring to fig. 1 and 2, the slide table assembly 2 includes a mounting base plate 21, a slide block 23, a lead screw 22, a limiting member 24, a first proximity switch 26, a second proximity switch 27, a third proximity switch 28, an oil nozzle 29, and a motor 25.

Two ends of the mounting bottom plate 21 are respectively mounted on the two mounting brackets 1, the mounting brackets 1 are provided with cavities 211, the transverse lead screw 22 is rotatably mounted in the cavities 211, the sliding block 23 is arranged inside the mounting bottom plate 21, the sliding block 23 and the lead screw 22 are connected in a threaded manner, the motor 25 is mounted at one end of the mounting bottom plate 21, and the motor 25 is connected with the lead screw and drives the lead screw 22 to rotate. The limiting member 24 is attached to one side of the mounting base plate 21, and the limiting member 24 is connected to the slider 23.

The first proximity switch 26 and the second proximity switch 27 are respectively installed at two ends of the side surface of the installation bottom plate 21 where the limiting member 24 is provided; the stop 24 has a downwardly directed mounting post on which a third proximity switch 28 and an oil jet 29 are mounted.

Wherein, to ensure the effect of the device, the motor 25 is selected as a stepping motor, and the screw 22 is selected as a ball screw.

When the tamping car is used for tamping, the tamping picks which vibrate in high frequency in pairs are simultaneously inserted into the ballast on two sides of the sleeper, the ballast is tamped by relative clamping action at a specified depth position, and the ballast flows, gathers and recombines, so that the functions of stabilizing the position of the track after shifting the track, improving the buffering capacity of the track bed, eliminating certain track diseases (such as empty hanging plates and the like) and the like are achieved. The tamping vehicle thus remains for a certain period of time at each sleeper during the tamping operation. This device passes through installing support 1 and installs on the device of dialling the track of tamping car, at first carries out preliminary location through the back-and-forth movement of dialling the track device to the position of nozzle for when tamping car tamping operation parking clearance, in the removal stroke of slider 23, sleeper bolt can be sensed all the time to third proximity switch 28.

In the specific design of the embodiment, the maximum value of the distance between adjacent sleeper bolts on site is 760mm, and the minimum value is 525mm, so that the theoretical minimum stroke of the sliding block 23 is 235mm, and the stroke of the lead screw 22 is 300mm to ensure the practicability of site use.

The specification of the double-lead screw is 1605 by checking the relevant data, namely the diameter of the lead screw 22 is 16mm, the thread pitch is 5mm, the lead is 10mm, and the thread pitch of the lead screw is 1000/integer, so that the controller 32 can control the distance accurately, and if the thread pitch of the lead screw 22 is too large, the control accuracy is reduced, and the service life is influenced. And selecting a fully-closed dustproof sliding table module according to the field use condition.

Referring to fig. 3, the control system 3 includes a power supply 31, a controller 32, and a driver 33.

The power supply 31 adopts a 24V power supply of the tamping vehicle, the power supply 31 is respectively connected with the controller 32 and the driver 33 to supply power for the controller 32 and the driver 33, the controller 32 is connected with the driver 33, and the driver 33 is connected with the motor 25. The controller 32 is connected with the first proximity switch 26, the second proximity switch 27 and the third proximity switch 28 and receives signals of the first proximity switch 26, the second proximity switch 27 and the third proximity switch 28, when the signal of the first proximity switch 26 is received, the controller 32 sends a signal to the driver 33 to control the motor 25 to rotate reversely, when the signal of the second proximity switch 27 is received, the controller 32 generates a signal to the driver 33 to control the motor 25 to rotate normally, and when the signal of the third proximity switch 28 is received, the controller 32 sends a signal to the driver 33 to suspend the motor 25.

In the specific design process of the present embodiment, the type of the motor 25 is selected: the larger the rotating speed of the motor 25 is, the smaller the output torque (force) of the motor 25 is, the actual rotating speed of the useful torque is below 1800 rpm, and the moving speed of the sliding table is measured, namely the rotating speed is less than 60 rpm. According to the fact that the time interval from the beginning and the completion of the tamping action to the movement of the vehicle is only about 4 seconds, the maximum effective stroke is 200mm, the limit time is 2 seconds to complete the linear motion, the lead of the lead screw 22 is 10mm, and the rotating speed of the motor 25 is 10 revolutions per second, namely 600 revolutions per minute, less than 1800 revolutions per minute, and is within the useful torque range of the motor 25. The horizontal load is within 5 kg.

The motor 25 is selected to be a two-phase 57-step motor, the torque is 2.8N.m, the step angle is 1.8 degrees, the phase number is 2 phases, the rated current is 4.2A, and the insulation grade is B grade.

The controller 32 selects the type: the higher the subdivision, the finer (not precise) the motor 25, but neither the higher the subdivision the better. The subdivision is an algorithmic derivation of the drive 33, the higher the subdivision, the less stable the drive 33 control. It is generally recommended that the subdivision not exceed 16 subdivisions (3200). The controller 32 may be selected to subdivide up to 256 subdivisions, depending on the pulse frequency setting of the controller 32.

The controller 32 and the driver 33 can select the matched products of the professional manufacturer according to the requirements, the pulse frequency of the controller 32 needs to meet the driving requirements, the controller 32 needs to be programmable, the requirements of the mechanism on action, such as programming control reversing, variable-pitch movement, time delay, output control of the electromagnetic valve 43 and the like are met, the current of the driver 33 is not less than 4.5A, and the requirement on the working current of the motor 25 is met.

Referring to fig. 4, the oil passage-air passage system 4 includes an oil tank 41, a pressure reducing valve 42, and a solenoid valve 43.

The oil tank 41 is communicated with the oil nozzle 29 through an oil pipe, an air source on the tamping car is used as a power source of an oil injection air path system, the air source is connected with one end of a pressure reducing valve 42 through an air pipe, the other end of the pressure reducing valve 42 is connected with the oil nozzle 29 through an air pipe, an electromagnetic valve 43 is arranged between the pressure reducing valve 42 and the oil nozzle 29, and the electromagnetic valve 43 is connected with the controller 32.

The controller 32 controls the on-off of the air path by controlling the on-off of the electromagnetic valve 43, specifically, a timer built in the controller 32 is turned on when receiving a signal of the third proximity switch 28, when the timer is turned on, the electromagnetic valve 43 in the oil path air path system 4 is turned on, at this time, the air path from the air source to the oil nozzle 29 is turned on, and negative pressure is formed at the oil nozzle 29 to spray oil; the timer is turned off after 0.5S, so that the solenoid valve 43 is turned off and the oil nozzle 29 finishes injecting oil. Therefore use the timer to carry out the oil spout of timing ration to the sleeper bolt, guarantee that every sleeper bolt fuel injection quantity is roughly the same, still can make sleeper bolt's fuel injection quantity reach the optimum condition through adjusting the timer simultaneously, avoid the fuel injection quantity too little to lead to the sleeper bolt to rust and the waste of fuel injection quantity too much to lead to fluid.

Meanwhile, the pressure reducing valve 42 is arranged for adjusting the air pressure in the air path, so that the oil nozzle 29 achieves a better spraying state.

The oil spraying method of the automatic oil spraying device comprises the following steps:

(1) the slider 23 moves from the first proximity switch 26 to the second proximity switch 27

The initial position of the sliding block 23 is at the first proximity switch 26, when the tamping vehicle has a down-insertion tamping action, an action signal of the control system 3 is provided, the control system 3 controls the motor 25 to start, the motor 25 drives the lead screw 22 to rotate, the lead screw 22 rotates to drive the sliding block 23 to move towards the second proximity switch 27, so as to drive the oil nozzle 29 and the third proximity switch 28 to move together, in the moving process, when the third proximity switch 28 senses a bolt, the third proximity switch 28 sends a sensing signal to the controller 32, the controller 32 controls the motor 25 to pause through the driver 33, so as to enable the sliding block 23 to pause, and simultaneously the timer in the controller 32 is switched on, so as to control the electromagnetic valve 43 to be switched on, so that the oil nozzle 29 sprays oil, the timer is switched off after 0.5S, the electromagnetic valve 43 is switched off, and the oil nozzle 29 finishes oil spraying. Then the control system 3 controls the motor 25 to continue rotating, and the sliding block 23 continues moving towards the second proximity switch 27 until the sliding block 23 moves to the second proximity switch 27, the sensing signal of the second proximity switch 27 is transmitted to the controller 32, and the controller 32 controls the motor 25 to stop through the driver 33.

(2) The slider 23 moves from the second proximity switch 27 to the first proximity switch 26

When the tamping vehicle moves to the next sleeper and carries out the lower tamping operation, an operation signal of the control system 3 is provided, the control system 3 controls the motor 25 to reversely rotate, the reverse rotation of the ball screw 22 drives the sliding block 23 to move towards the first proximity switch 26, in the moving process, when the third proximity switch 28 senses a bolt, the third proximity switch 28 sends the sensing signal to the controller 32, the controller 32 controls the motor 25 to pause through the driver 33, so that the sliding block 23 stops moving, meanwhile, the timer in the controller 32 is switched on, so that the electromagnetic valve 43 is controlled to be switched on, so that the oil nozzle 29 sprays oil, the timer is switched off after 0.5S, the electromagnetic valve 43 is switched off, and the oil nozzle 29 finishes oil spraying. Subsequently, the control system 3 controls the motor 25 to continue to rotate reversely, the sliding block 23 continues to move towards the first proximity switch 26 until the sliding block 23 moves to the first proximity switch 26, the sensing signal of the first proximity switch 26 is transmitted to the controller 32, and the controller 32 controls the motor 25 to stop through the driver 33.

The action (1) and the action (2) are combined into one action cycle, and the automatic oil injection operation of the sleeper bolt is completed by the device in the working process of the tamping vehicle through the alternate action of the action (1) and the action (2).

In order to ensure the use safety of the device and not influence the normal work of the tamping vehicle, safety measures are taken on the circuit, the gas circuit and the oil circuit of the device: the circuit is connected with a safety device in series, so that the circuit of the device can be automatically powered off when the circuit is abnormal in work; the gas path entering the oil injection system is connected with a cock in a pipeline and can be closed at any time; the valve is connected in the oil pipeline, and the oil supply can be stopped at any time.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The above-mentioned embodiments only represent embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the concept of the present invention, and these embodiments are all within the protection scope of the present invention.