A rail maintenance vehicle

Abstract

A rail maintenance vehicle comprises a vehicle body, a cross frame, and guide rails, wherein the vehicle body is located above the guide rails, and a cross frame is supported above the vehicle body; the vehicle body comprises a main shaft, a left plate, a right plate, gears, upper wheels, lower wheels, a driving unit, a first secondary shaft, and a second secondary shaft, wherein the driving unit drives the main shaft to rotate, the main shaft passes through a left plate and a right plate, two upper wheels are arranged between the left plate and the right plate, the gear is arranged between the two upper wheels, the two upper wheels and the gear are sleeved on the main shaft, the first secondary shaft passes through the left plate, the second secondary shaft passes through the right plate, and the lower wheels are sleeved on the first and second secondary shafts.

Description

Technical Field

[0001] The invention relates to the field of tunnel secondary lining concrete maintenance, and in particular to a maintenance track vehicle. Background Art

[0002] In recent years, with the continuous investment in large-scale infrastructure construction in my country, various highway and railway projects have been started one after another. Among these projects, tunnel engineering is an extremely critical part, especially in the central and western regions of my country. There are many long and large tunnels in various geological conditions. Their construction is difficult and has high quality requirements, especially for high-speed railway tunnels, which have more stringent construction quality requirements.

[0003] In order to ensure the safe operation of high-speed trains, the secondary lining structure in the tunnel must be safe and reliable, and no concrete blocks should fall under the strong wind tunnel effect. This requires that the construction process and engineering quality of the secondary lining of the tunnel must meet the design requirements. The maintenance of the secondary lining plays a vital role in the engineering quality.

[0004] Traditional tunnel secondary lining concrete is basically maintained by manual watering. This maintenance method depends largely on people's work attitude and sense of responsibility, which may cause problems such as insufficient maintenance time and maintenance frequency, regional omissions, etc., resulting in substandard concrete quality. In addition, due to the use of manual maintenance, the labor intensity of workers is high, water resources are wasted, and ground water is accumulated, which is not conducive to civilized construction. Therefore, this field is committed to the research of automatic cleaning and maintenance equipment.

[0005] In actual practice, there are the following problems:

[0006] 1. China Railway No. 5 Engineering Group Guizhou Company developed equipment to add water to the bracket through a water pump, and then set up a nozzle above the bracket to spray water to water the second lining for maintenance. However, there are different winds in tunnels of different environments, lengths, and directions. In the absence of wind, the nozzle is easy to evenly cover and spray, but in a strong wind environment, the nozzle will spray to one side and cannot evenly cover and spray for maintenance; and maintenance work cannot accurately judge the time of no wind in complex situations, and the maintenance schedule cannot be completely formulated based on whether there is wind or no wind, so many times we have to face wind environment maintenance.

[0007] 2. Guizhou Company has taken measures to shorten the spraying distance to prevent wind to solve the above problem. Shortening the spraying distance reduces the impact of wind, but shortening the spraying distance leads to a smaller spray diffusion ratio and a smaller spray coverage area.

[0008] 3. The nozzles in the prior art have multiple modes of switching, which is easy to achieve. The switching can be achieved by manually or electrically applying power to the turntable. However, in tunnel maintenance work, there are many nozzles, and it is cumbersome to operate and switch each nozzle individually. In addition, the nozzles are close to the top surface of the tunnel and are at a high height. Even with a trolley as a bracket, it is extremely inconvenient to operate. If an electric operation method is used, due to the structural limitations of the nozzles, an extremely complex structure is required to achieve it. In addition, wires must be laid for the electric source of each nozzle. Due to the water spraying environment of the nozzles, the wires must also have a waterproof protection structure, which greatly increases the cost.

[0009] Fourth, as mentioned above, even if the spray mode can be switched, how to trigger the switch is a problem that needs to be solved. Generally speaking, a sensor is used as a trigger switch, and a signal is transmitted to the switching module through a wireless communication module. This solution also requires increased costs and the aforementioned waterproof protection.

[0010] 5. Guizhou Company used water line switching to solve the switching and triggering problems, but faced with numerous sprinkler heads, how to lay out the wiring so that each sprinkler head can switch the water line requires laying out two water lines for each sprinkler head. The lines are complex, the cost is high, and the risk of problems is high. Summary of the invention

[0011] In order to overcome the above problems, the present invention proposes a solution to solve the above multiple problems at the same time.

[0012] The technical solution adopted by the present invention to solve its technical problems is: a rail maintenance vehicle, including a vehicle body, a cross frame, a guide rail, a lifting device, a pipe rack, a trigger module, and a nozzle, wherein the vehicle body is located above the guide rail, a cross frame is supported above the vehicle body, a lifting device is arranged above the cross frame, the pipe rack is arranged above the lifting device, the trigger module is arranged above the pipe rack, and the nozzle is also arranged on the pipe rack; the pipe rack includes a straight pipe section, and an arc-shaped pipe section is arranged at each end of the straight pipe section; an arc-shaped pipe section is connected to each of the two ends of the cross frame, and the pipe rack includes an outer shell and an inner tube, a first flow channel is formed in the inner tube, a second flow channel is formed between the outer shell and the inner tube, a pipe joint passes through the outer shell to connect the nozzle with the inner tube, and a seal is formed between the outer shell and the pipe joint;

[0013] The vehicle body comprises a main shaft, a left plate, a right plate, a gear, an upper wheel, a lower wheel, a driving unit, a first secondary shaft and a second secondary shaft. The driving unit drives the main shaft to rotate. The main shaft passes through the left plate and the right plate. Two upper wheels are arranged between the left plate and the right plate. The gear is arranged between the two upper wheels. The two upper wheels and the gear are sleeved on the main shaft. The first secondary shaft passes through the left plate, the second secondary shaft passes through the right plate, and the lower wheels are sleeved on the first and second secondary shafts. The guide rail comprises an upper plate, a vertical beam, a lower plate and a rack. The rack, the upper plate, the vertical beam and the lower plate are connected in sequence from top to bottom. The upper wheel contacts the upper surface of the upper plate, and the lower wheel contacts the lower surface of the upper plate. The gear cooperates with the rack for transmission.

[0014] The trigger module comprises a closing plate, a trigger rod, a pressure plate, a neck, a top plate, a hemisphere, a sleeve and a spring. The closing plate is located in the straight tube section. A through hole is provided on the tube wall of the inner tube. The trigger rod is connected to the closing plate above, the pressure plate is connected to the trigger rod above, the neck is connected to the pressure plate above, the neck is connected to the top plate above, the hemisphere is connected to the top plate above, the sleeve is provided above the straight tube section, the trigger rod and the pressure plate can move up and down along the sleeve, and the spring is provided below the pressure plate. In a first state, the upper surface of the closing plate abuts against the inner wall of the inner tube and closes the through hole. In a second state, the closing plate leaves the inner wall of the inner tube, and the first flow channel and the second flow channel are connected through the through hole.

[0015] The nozzle includes a main body, a spray ring, a sealing ring, a hose, a secondary flow channel, a diffusion chamber, a limit rod and a limit block; a main cone is formed above the main body, an upper cone is formed above the spray ring, and a lower cone is formed below the spray ring; the sealing ring is connected to the main body, a secondary flow channel, a diffusion chamber and a limit chamber are arranged in the wall of the main body, the hose connects the second flow channel and the secondary flow channel, the limit rod is connected below the lower cone, the limit block is connected below the limit rod, the limit block includes an inclined upper surface, and the limit rod and the limit block are located in the limit chamber; in the first state, the lower cone abuts against the main cone, and the sealing ring seals the junction between the lower cone and the main cone; in the second state, the fluid passes through the first flow channel, the through hole, the second flow channel, the hose, the secondary flow channel and the diffusion chamber in sequence to impact and lift the spray ring.

[0016] Preferably, the number of the springs is two, and the diffusion chamber extends along the circumference of the main body.

[0017] Preferably, the through hole is a long hole.

[0018] Preferably, the nozzle comprises a central axis.

[0019] Preferably, the angle between the lower conical surface and the central axis is greater than the angle between the upper conical surface and the central axis.

[0020] Preferably, in the first state, the limiting block is located at the bottom of the limiting cavity.

[0021] Preferably, the limiting cavity comprises an inclined surface.

[0022] Preferably, the water source is in communication with the inner tube.

[0023] Preferably, the number of the limiting rods and the number of the limiting blocks are both two.

[0024] Preferably, in the second state, the water flow is sprayed out from between the lower cone surface and the main cone surface, and simultaneously sprayed out from above the nozzle.

[0025] The beneficial effects of the present invention are:

[0026] 1. In response to the first point raised in the background technology, the following solution is adopted: water is added to the annular pipe rack which is kept at a certain distance from the second lining surface through a water pump, and the water is sprayed onto the second lining surface through a nozzle installed on the annular pipe rack. The shape of the annular pipe rack is adapted to the second lining surface, thereby realizing the maintenance of the concrete; when there is strong wind, the lifting device under the annular pipe rack lifts the annular pipe rack, so that the distance between the nozzle and the second lining surface is closer, and the sprayed water flow is less disturbed by the strong wind.

[0027] 2. In response to the second point raised in the background technology, the nozzle is provided with two spray modes. The second spray mode sprays upward and in a circumferential direction at the same time, and a larger spray cone angle is set to expand the spray diffusion ratio and increase the spray coverage.

[0028] 3. In response to the third point raised in the background technology, the nozzle is configured to include a main body, a spray ring, and a sealing ring. The inner cavity of the main body is the main flow channel, and a secondary flow channel is arranged in the main body cylinder wall. The secondary flow channel can lift the spray ring to realize mode switching. A constraint is also arranged in the main body cylinder wall to limit the moving distance of the spray ring.

[0029] The restraining member and the secondary flow channel are arranged separately to overcome the problem that the wall thickness of the main body tube is not enough to be arranged on one side at the same time.

[0030] The secondary flow channel is only arranged in the upper part of the main body to avoid the excessively long flow channel reducing the strength of the main body cylinder wall, and the flow channel in the lower part is supplemented by a hose outside.

[0031] The sealing ring ensures the sealing between the main body and the spray ring in the first spray mode.

[0032] The diffusion chamber above the secondary flow channel increases the lifting effect area.

[0033] 4. In response to the fourth point raised in the background technology, a trigger rod is provided. The trigger rod is provided above the annular pipe rack. When the lifting device lifts the annular pipe rack, the trigger rod also contacts the second lining surface as it is lifted and is subjected to downward pressure, so that the trigger rod moves downward to open the second water channel, thereby connecting the secondary flow channel through the second water channel and lifting the spray ring to realize the mode switching of the nozzle.

[0034] The hemisphere on the top of the trigger lever is convenient for matching with the shape of the second lining surface.

[0035] The annular pipe rack comprises a straight pipe section and arc-shaped pipe sections on both sides, and the straight pipe section is convenient for installing the trigger mechanism.

[0036] 5. In response to the fifth point raised in the background technology, a sleeve pipe is provided in the straight pipe section and the arc pipe section to form a first flow channel and a second flow channel. The second flow channel is annular, and extends to each nozzle through the first and second flow channels. The inner cavity of the nozzle body is connected with the first flow channel, and the secondary flow channel of the nozzle is connected with the second flow channel through a hose; therefore, it is only necessary to install a short hose for each nozzle, and there is no need to arrange a large number of water pipelines.

[0037] Note: The above designs are not listed in any particular order, and each one makes the present invention distinctive and significantly advanced compared to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0039] Figure 1 This is a schematic diagram of the pipe rack spraying of the present invention

[0040] Figure 2 The present invention Figure 1 Enlarged diagram of position A in the middle

[0041] Figure 3 The present invention Figure 1 Sectional view of the nozzle in the first state at position B

[0042] Figure 4 The present invention Figure 1 Sectional view of the nozzle in the second state at position B

[0043] Figure 5 This is a schematic diagram of the associated parts of the rail vehicle of the present invention.

[0044] Figure 6 The present invention Figure 5 Enlarged view of the rail car body at position C in the middle

[0045] Figure 7 It is a side view of the rail vehicle of the present invention

[0046] In the figure, the reference numerals are as follows:

[0047] 1. Lifting device, 2. Pipe rack, 3. Trigger module, 4. Second lining, 5. Lifting rod, 6. Straight pipe section, 7. First flow channel, 8. Second flow channel, 9. Closing plate, 10. Trigger rod, 11. Press plate, 12. Neck, 13. Top plate, 14. Hemisphere, 15. Sleeve, 16. Spring, 17. Inner pipe, 18. Main body, 19. Spray ring, 20. Sealing ring, 21. Hose, 22. Secondary flow channel, 23 , diffusion chamber, 24, limit rod, 25, limit block, 26, upper cone surface, 27, lower cone surface, 28, main cone surface, 29, cross frame, 30, main shaft, 31, left plate, 32, right plate, 33, guide rail, 34, upper plate, 35, vertical beam, 36, lower plate, 37, rack, 38, gear, 39, upper wheel, 40, lower wheel, 41, side wheel, 42, car body, 43, first secondary shaft, 44, second secondary shaft. DETAILED DESCRIPTION

[0048] As shown in the figure: a rail maintenance vehicle, including a vehicle body, a cross frame, guide rails, a lifting device, a pipe rack, a trigger module, and a nozzle, and the guide rails are located above a common trolley.

[0049] The vehicle body is located above the guide rail, a cross frame is supported above the vehicle body, a lifting device is arranged above the cross frame, the pipe rack is arranged above the lifting device, the trigger module is arranged above the pipe rack, and the nozzle is also arranged on the pipe rack; the pipe rack includes a straight pipe section, and an arc pipe section is arranged at each end of the straight pipe section; an arc pipe section is connected to each of the two ends of the cross frame, and the pipe rack includes an outer shell and an inner tube, a first flow channel is formed in the inner tube, a second flow channel is formed between the outer shell and the inner tube, a pipe joint passes through the outer shell to connect the nozzle and the inner tube, and a seal is formed between the outer shell and the pipe joint;

[0050] The vehicle body comprises a main shaft, a left plate, a right plate, a gear, an upper wheel, a lower wheel, a driving unit, a first secondary shaft and a second secondary shaft. The driving unit drives the main shaft to rotate. The main shaft passes through the left plate and the right plate. Two upper wheels are arranged between the left plate and the right plate. The gear is arranged between the two upper wheels. The two upper wheels and the gear are sleeved on the main shaft. The first secondary shaft passes through the left plate, the second secondary shaft passes through the right plate, and the lower wheels are sleeved on the first and second secondary shafts. The guide rail comprises an upper plate, a vertical beam, a lower plate and a rack. The rack, the upper plate, the vertical beam and the lower plate are connected in sequence from top to bottom. The upper wheel contacts the upper surface of the upper plate, and the lower wheel contacts the lower surface of the upper plate. The gear cooperates with the rack for transmission.

[0051] The trigger module comprises a closing plate, a trigger rod, a pressure plate, a neck, a top plate, a hemisphere, a sleeve and a spring. The closing plate is located in the straight tube section. A through hole is provided on the tube wall of the inner tube. The trigger rod is connected to the closing plate above, the pressure plate is connected to the trigger rod above, the neck is connected to the pressure plate above, the neck is connected to the top plate above, the hemisphere is connected to the top plate above, the sleeve is provided above the straight tube section, the trigger rod and the pressure plate can move up and down along the sleeve, and the spring is provided below the pressure plate. In a first state, the upper surface of the closing plate abuts against the inner wall of the inner tube and closes the through hole. In a second state, the closing plate leaves the inner wall of the inner tube, and the first flow channel and the second flow channel are connected through the through hole.

[0052] The nozzle includes a main body, a spray ring, a sealing ring, a hose, a secondary flow channel, a diffusion chamber, a limit rod and a limit block; a main cone is formed above the main body, an upper cone is formed above the spray ring, and a lower cone is formed below the spray ring; the sealing ring is connected to the main body, a secondary flow channel, a diffusion chamber and a limit chamber are arranged in the wall of the main body, the hose connects the second flow channel and the secondary flow channel, the limit rod is connected below the lower cone, the limit block is connected below the limit rod, the limit block includes an inclined upper surface, and the limit rod and the limit block are located in the limit chamber; in the first state, the lower cone abuts against the main cone, and the sealing ring seals the junction between the lower cone and the main cone; in the second state, the fluid passes through the first flow channel, the through hole, the second flow channel, the hose, the secondary flow channel and the diffusion chamber in sequence to impact and lift the spray ring.

[0053] As shown in the figure: the number of the springs is two, and the diffusion chamber extends along the circumference of the main body. The through hole is a long hole. The nozzle includes a central axis. The angle between the lower cone and the central axis is greater than the angle between the upper cone and the central axis. In the first state, the limit block is located at the bottom of the limit cavity. The limit cavity includes an inclined surface. The water source is connected to the inner tube. The number of the limit rod and the limit block are both two. In the second state, the water flow is ejected from between the lower cone and the main cone, and at the same time ejected from the top of the nozzle.

[0054] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not deviate from the present invention should be included in the patent scope of this case.

Claims

1. A rail maintenance vehicle, characterized in that: It includes a vehicle body, a cross frame, a guide rail, a lifting device, a pipe rack, a trigger module, and a nozzle. The vehicle body is located above the guide rail, a cross frame is supported above the vehicle body, a lifting device is arranged above the cross frame, the pipe rack is arranged above the lifting device, the trigger module is arranged above the pipe rack, and the nozzle is also arranged on the pipe rack; the pipe rack includes a straight pipe section, and an arc pipe section is arranged at each end of the straight pipe section; an arc pipe section is connected to each of the two ends of the cross frame, and the pipe rack includes an outer shell and an inner tube, a first flow channel is formed in the inner tube, a second flow channel is formed between the outer shell and the inner tube, a pipe joint passes through the outer shell to connect the nozzle and the inner tube, and a seal is formed between the outer shell and the pipe joint; The vehicle body comprises a main shaft, a left plate, a right plate, a gear, an upper wheel, a lower wheel, a driving unit, a first secondary shaft and a second secondary shaft. The driving unit drives the main shaft to rotate. The main shaft passes through the left plate and the right plate. Two upper wheels are arranged between the left plate and the right plate. The gear is arranged between the two upper wheels. The two upper wheels and the gear are sleeved on the main shaft. The first secondary shaft passes through the left plate, the second secondary shaft passes through the right plate, and the lower wheels are sleeved on the first and second secondary shafts. The guide rail comprises an upper plate, a vertical beam, a lower plate and a rack. The rack, the upper plate, the vertical beam and the lower plate are connected in sequence from top to bottom. The upper wheel contacts the upper surface of the upper plate, and the lower wheel contacts the lower surface of the upper plate. The gear cooperates with the rack for transmission. The trigger module comprises a closing plate, a trigger rod, a pressure plate, a neck, a top plate, a hemisphere, a sleeve and a spring. The closing plate is located in the straight tube section. A through hole is provided on the tube wall of the inner tube. The trigger rod is connected to the closing plate above, the pressure plate is connected to the trigger rod above, the neck is connected to the pressure plate above, the neck is connected to the top plate above, the hemisphere is connected to the top plate above, the sleeve is provided above the straight tube section, the trigger rod and the pressure plate can move up and down along the sleeve, and the spring is provided below the pressure plate. In a first state, the upper surface of the closing plate abuts against the inner wall of the inner tube and closes the through hole. In a second state, the closing plate leaves the inner wall of the inner tube, and the first flow channel and the second flow channel are connected through the through hole. The nozzle includes a main body, a spray ring, a sealing ring, a hose, a secondary flow channel, a diffusion chamber, a limit rod and a limit block; a main cone is formed above the main body, an upper cone is formed above the spray ring, and a lower cone is formed below the spray ring; the sealing ring is connected to the main body, a secondary flow channel, a diffusion chamber and a limit chamber are arranged in the wall of the main body, the hose connects the second flow channel and the secondary flow channel, the limit rod is connected below the lower cone, the limit block is connected below the limit rod, the limit block includes an inclined upper surface, and the limit rod and the limit block are located in the limit chamber; in the first state, the lower cone abuts against the main cone, and the sealing ring seals the junction between the lower cone and the main cone; in the second state, the fluid passes through the first flow channel, the through hole, the second flow channel, the hose, the secondary flow channel and the diffusion chamber in sequence to impact and lift the spray ring.

2. A rail maintenance vehicle according to claim 1, characterized in that: The number of the springs is two, and the diffusion chamber extends along the circumference of the main body.

3. A rail maintenance vehicle according to claim 1, characterized in that: The through hole is a long hole.

4. A rail maintenance vehicle according to claim 1, characterized in that: The spray head includes a central axis.

5. A rail maintenance vehicle according to claim 4, characterized in that: The included angle between the lower conical surface and the central axis is greater than the included angle between the upper conical surface and the central axis.

6. A rail maintenance vehicle according to claim 1, characterized in that: In the first state, the limiting block is located at the bottom of the limiting cavity.

7. A rail maintenance vehicle according to claim 1, characterized in that: The limiting cavity includes an inclined surface.

8. The track maintenance vehicle according to claim 1, characterized in that: The water source is connected to the inner pipe.

9. The track maintenance vehicle according to claim 1, characterized in that: The number of the limiting rods and the number of the limiting blocks are both two.

10. A rail maintenance vehicle according to claim 1, characterized in that: In the second state, the water flows out from between the lower cone surface and the main cone surface, and at the same time, flows out from the top of the nozzle.

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