An intelligent lifting device for a steel spring floating slab track bed and its usage method

Abstract

The present invention relates to the technical field of jacking devices, and specifically to an intelligent jacking device for a steel spring floating slab track bed, which includes a floating slab and a track arranged on the floating slab, and further includes a transport flatbed truck provided with an electric hydraulic pump station; a number of vibration isolators, including an outer sleeve, an inner sleeve and adjustment gaskets; a number of jacks, the jacks are arranged in pairs on both sides of the track, the bottom of the jacks is inserted into the vibration isolators and connected to the floating slab track bed, a number of limiting blocks are arranged in the middle of the jacks, and the jacks are connected to the electric hydraulic pump station of the transport flatbed truck through hydraulic pipelines for controlling the synchronous jacking of a number of jacks. Compared with the prior art, the advantages of the present invention are as follows: it realizes informatization and mechanized control, realizes the one-time jacking of a single track bed slab, improves the construction efficiency and liberates the manpower; the jacking data can be interacted at any time, can be stored and exported, and is quantitatively accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of jacking devices, and more specifically, to an intelligent jacking device for a steel spring floating slab track bed. Background Art

[0002] The noise generated during subway operation will have an impact on the surrounding people and facilities. Therefore, technical measures need to be taken to reduce vibration and noise. The steel spring floating slab track is a new type of track structure with good vibration and noise reduction effects. In the construction operation of the steel spring floating slab track bed, jacking is a key process.

[0003] The current jacking operation is mainly completed manually, adopting a jacking method of sequentially pointing points, symmetric left and right, from front to back, jacking 1 - 2 mm each time, and jacking three times in total. Due to the high requirement for error precision, it is difficult to control the construction quality by manual jacking. At the same time, the construction efficiency is low and the potential safety hazards are large. Therefore, there is an urgent need to develop an intelligent jacking system.

[0004] Chinese Patent, Patent No. ZL201420031476.7 discloses a vibration isolator and a floating track bed vibration isolation structure including the vibration isolator, which includes a vibration isolator cylinder body and a vibration isolator top cover. Along the circumferential direction of the inner wall of the vibration isolator cylinder body, three radially protruding fixing blocks are uniformly arranged. The vibration isolator top cover includes a top cover base body, on which there is a bolt hole and two circular columns extending downward from the top cover base body. Installation holes matching the circular columns are respectively arranged on two of the three fixing blocks, and the vibration isolator top cover is threadedly connected to the other fixing block through a bolt passing through the through hole. The above patent discloses a vibration isolator with good insulation and flame retardant effects and is convenient to use. However, the floating track bed of the track system using the above vibration isolator cannot achieve jacking and synchronous jacking, so that when the track is overhauled and jacked, other connecting structures need to be additionally arranged, wasting manpower and material resources. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies of the prior art and provide an intelligent jacking device that can perform real-time data interaction and can control the simultaneous jacking of the entire track slab through an operation platform.

[0006] To achieve the above object, an intelligent lifting device for a steel spring floating slab track bed is designed, which includes a floating slab and a track arranged on the floating slab, and also includes a transport flatbed truck provided with an electric hydraulic pump station; a number of vibration isolators, including an outer sleeve, an inner sleeve and an adjusting gasket. The bottom of the vibration isolator is connected to the floating slab through the outer sleeve, and a spring is also provided at the bottom of the outer sleeve. A number of sleeve support plates are arranged on the upper surface of the outer sleeve along the circumferential direction. The inner sleeve is arranged on the top of the spring. A number of sleeve support angles are arranged on the upper surface of the inner sleeve along the circumferential direction. The adjusting gasket is arranged on the upper surface of the inner sleeve; a number of jacks, which are arranged in pairs on both sides of the track. The bottom of the jack is inserted into the vibration isolator and connected to the floating slab track bed. A number of limit blocks are arranged in the middle of the jack. The jack is connected to the electric hydraulic pump station of the transport flatbed truck through a hydraulic pipeline for controlling the synchronous lifting of a number of jacks.

[0007] Preferably: The electric hydraulic pump station is arranged at one end of the transport flatbed truck. A number of hydraulic pipeline connection ports are arranged on the surface of the electric hydraulic pump station, and an industrial control computer, a control valve group, a hydraulic cylinder, a displacement monitoring device, a pressure monitoring device and an electrical control device are arranged inside.

[0008] Preferably: The transport flatbed truck includes a vehicle body and a running device, and also includes a normally open to normally closed mechanism. The normally open to normally closed mechanism includes a brake handle, a steel wire rope, a sleeve and a push handle. The push handle is connected to the vehicle body through the sleeve. The sleeve is arranged at the bottom of the push handle. The sleeve is connected to the brake handle through the steel wire rope; a hydraulic braking device. The hydraulic disc braking system includes a brake disc, a brake caliper, a small oil pump and a piston. The piston is arranged outside the wheel and connected to the brake handle. The brake disc is sleeved on the axle. The brake caliper is arranged outside the brake disc. The brake caliper is connected to the piston through the small oil pump; an electromagnetic braking device. The electromagnetic braking device at least includes an in-wheel magnet and an electromagnetic brake. The electromagnetic brake includes a connecting disc, a brake disc, a brake pad and a fixed electromagnet. The fixed electromagnet is arranged inside the wheel. A brake pad is arranged on one side of the fixed electromagnet. The connecting disc and the brake disc are sleeved on the axle.

[0009] Preferably: It also includes a pump station generator, which is arranged on the other side of the transport flatbed truck and is connected to the electric hydraulic pump station.

[0010] Preferably: It also includes a wire reel and a power battery. The wire reel is arranged on the surface of the transport flatbed truck. The power battery is arranged at the bottom of the transport flatbed truck. The wire reel can automatically wind up the hydraulic pipeline.

[0011] The present invention also includes a using method of the intelligent lifting device for a steel spring floating slab track bed:

[0012] (1) Drive the steel spring floating plate track bed intelligent jacking device to the construction section to be jacked, lock the driving wheel group with the foot brake after it stops, then place the iron shoe on the rail to clamp the driving wheel group, and finally fix the safety rope to the rail to complete the parking of the flatbed transport vehicle;

[0013] (2) After placing the adjustment gasket next to the isolator sleeve, first place the adjustment gasket in the sleeve, then place the jack, and rotate the jack as a whole so that several of its limit blocks are located below the sleeve support plate;

[0014] (3) Start the electric hydraulic pump station and the generator, select a certain jacking jack to lift alone or all jacks to lift synchronously according to the status of the roadbed plate, and then start lifting. At this time, the pressure height of the vibration isolator in the sleeve is reduced, and there is a certain gap between the three supporting corners of the vibration isolator and the sleeve supporting plate. Use an iron rod to move the adjustment gasket so that its three corners are located below the sleeve supporting plate;

[0015] (4) After recording and storing the lifting height and pressure data, perform the pressure relief operation. After the operation is completed, the vibration isolator rebounds, the adjustment gasket is tightly pressed against the sleeve support plate, and the jack is lifted out of the sleeve;

[0016] (5) Repeat processes (2) to (4), and place a number of adjustment gaskets in each sleeve. The reaction force generated by the isolator acts on the floating plate through the sleeve, causing the floating plate ballast to slowly float up;

[0017] (6) Record the jacking data, shut down the electric hydraulic pump station and the generator, then remove the hydraulic pipelines connecting the hydraulic jack and the electric hydraulic pump station, and retract and release them neatly using the automatic hose reel.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Realize information and mechanized control, realize one-time lifting of a single roadbed plate, improve construction efficiency and liberate manpower;

[0020] 2. The lifting data can be interacted at any time, stored and exported, with precise quantitative data, which is conducive to the maintenance of the steel spring floating plate track bed in the future;

[0021] 3. It is controlled by the operating program inside the industrial computer to realize multiple control modes of single action and linkage of the jack;

[0022] 4. The entire system is installed online on a rail construction service vehicle driven by new energy batteries. It is easy to operate during operation, occupies a small space, and is easy to arrange and evacuate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front view of the present invention;

[0024] Figure 2Left view of the present invention;

[0025] Figure 3 Top view of the present invention;

[0026] Figure 4 On-site schematic diagram of the present invention;

[0027] Figure 5 Structural diagram of the electro-hydraulic pump station of the present invention;

[0028] Figure 6 Exploded view of the jack and shock absorber of the present invention;

[0029] Figure 7 Stereoscopic top view of the assembly of the jack and shock absorber of the present invention;

[0030] In the figure: 1. Transport flatbed truck, 2. Electro-hydraulic pump station, 3. Pump station generator, 4. Jack, 5. Power battery, 6. Control panel, 7. Display, 8. Hydraulic pipeline connection port, 9. Motor, 10. Hydraulic disc brake, 11. Caster brake, 12. Rail clamp, 13. Safety rope, 14. Electric motor, 15. Transmission shaft, 16. Driving wheel set, 17. Floating slab track bed, 18. Reel, 19. Outer sleeve, 20. Adjusting gasket, 21. Inner sleeve, 22. Hydraulic cylinder, 23. Industrial control computer, 24. Electrical control device, 25. Control valve group, 26. Displacement monitoring device, 27. Pressure monitoring device. Detailed implementation manners

[0031] Embodiment 1

[0032] Referring to Figure 1 、 Figure 2 and Figure 3 , the intelligent jacking device designed by the present invention mainly consists of a transport flatbed truck, an electro-hydraulic pump station, a pump station generator, a jack, a shock absorber, a reel and a power battery. The transport flatbed truck adopts a self-braking anti-slip flatbed transport vehicle, which is a self-braking anti-slip flatbed truck using a normally closed hydraulic disc brake system, integrating multiple protection measures such as a self-braking hydraulic disc brake, a caster brake, a rail clamp and a safety rope, and its braking and protection system is stable and reliable.

[0033] The transport flatbed truck mainly consists of a vehicle body frame, a pushing handle, a caster brake, a wheel set, a safety rope, a hydraulic braking device and an electromagnetic braking device. The vehicle body frame is in the shape of a rectangular plate, welded by horizontally and vertically arranged channel steels and an upper steel plate, and is used to load materials. A rail clamp placement rack and a safety rope are welded on its side for placing auxiliary braking devices. The wheel set is installed through a wheel set bracket welded under the vehicle frame and is used for the running of the transport flatbed truck.

[0034] The pushing handle is connected to the vehicle body through a sleeve and a pushing handle bracket. The pushing handle limiter is used to limit the position of the pushing handle, keeping the hydraulic braking device normally closed. The sleeve is connected to the braking handle through a steel wire rope. The braking handle is connected to the frame through a braking handle mounting bracket and is equipped with a spring for reset. The hydraulic braking device consists of a brake disc mounting disc, a brake disc, a brake caliper, and a piston. The brake disc is sleeved on the axle, and the piston is arranged outside the wheel. The brake disc is clamped by the brake caliper to achieve parking braking.

[0035] The electromagnetic over-speed braking system includes a speed measuring device, an electromagnetic brake, and an integrated control chip. The speed measuring device is a speed measuring chip and an in-wheel magnet. The speed measuring device uses the Hall effect as the speed measuring principle. When the in-wheel magnet approaches the speed measuring chip, the speed measuring chip sends a signal to the integrated control chip. The integrated control chip calculates the running speed of the flatbed truck based on the number of signals received per unit time and the wheel radius. The electromagnetic brake consists of a connecting disc, a brake disc, brake pads, and a fixed electromagnet. When the measured speed is greater than the preset speed value of the flatbed truck, the integrated control chip will send a signal to the electromagnetic brake. After receiving the signal, the electromagnetic brake is energized, and the fixed electromagnet will adsorb the brake disc, making it close to the brake pads, and braking the wheel through the connecting disc until the speed is zero. The integrated control chip is a system-built program for speed discrimination and issuing brake commands.

[0036] The auxiliary braking system mainly consists of a pedal-type caster brake and a safety rope. The pedal-type caster brake includes a long pedal, a pressure plate, and a braking pedal. When the rail service vehicle is about to park, step on the long pedal, and the wheel can be locked through the pressure plate and the braking pedal to achieve braking. Before use, step on the short pedal, and the pressure plate and the braking pedal will rise to release the braking. The safety rope is installed on both sides of the vehicle through a fixing bracket and is used to fix it on the elastic strip after the flatbed truck parks to achieve auxiliary braking.

[0037] The specific working process of the above trolley is as follows:

[0038] When the transport flatbed truck parks without working, its pushing handle remains vertical under the action of the pushing handle limiter. At this time, the piston is in a compressed state, and the brake caliper clamps the brake disc 3-4 installed on the wheel, and the vehicle is in a safe braking state.

[0039] During work, place the material on the frame, untie the safety rope fixed to the rail side, and step on the short pedal of the caster brake. The operator pulls / pushes the pushing handle, and the braking handle is pulled open by the steel wire rope, which in turn opens the piston 3-7, and the brake caliper releases the brake disc, making the wheel set in a free state, releasing the braking state of the transport flatbed truck, and the transport flatbed truck starts to run in the track.

[0040] During the operation of the transport flatbed truck, the speed measuring device located at the rear side of the frame will monitor the rotational speed of the wheels in real time through the magnets installed inside the wheel sets, calculate the forward speed of the vehicle based on the radius of the wheel sets, and send a signal to the electromagnetic braking device to brake the vehicle when the actual speed is greater than the preset speed. At this time, the brake disc will adsorb to the friction plate until the vehicle stops.

[0041] After the transport flatbed truck reaches the designated position, release the pushing handle. At this time, the braking handle will return to its initial position under the action of the spring, the piston will be closed, and the brake caliper will clamp the brake disc again to achieve the braking of the vehicle.

[0042] Furthermore, step on the long foot brake pedal above the wheel set and fix the safety rope to the fixed point on the track side to perform further auxiliary braking to ensure the safety and reliability of the transport flatbed truck when parked. When long-term parking is required, the transport flatbed truck can be restricted from parking by placing an iron shoe in front of the wheel set. The iron shoe can be placed on the iron shoe rack when the transport flatbed truck is driving.

[0043] See Figure 4 、 Figure 5 、 Figure 6 and Figure 7 On the surface of the electric hydraulic pump station, there are a control panel, a display, hydraulic pipeline connection ports, and a motor. Inside, there are an industrial control computer, a control valve group, a hydraulic cylinder, a displacement monitoring device, a pressure monitoring device, and an electrical control device. The hydraulic pipeline connects the electric hydraulic pump station and the hydraulic jack through the hydraulic pipeline connection port. The jacking speed can be controlled through the electrical control console, and the high-precision synchronization of jacking can be ensured through displacement sensors, pressure sensors, and equalizing valves. The internal operating system of the industrial control computer can control one or more jacks to synchronously jack up. The electrical control device transmits the jacking data to the industrial control computer through the internal wireless communication transmission module. The industrial control computer can store and export all the data of the current operation; the industrial control computer is connected to the display to display the synchronous jacking data in real time.

[0044] The vibration isolator of the present invention includes an outer sleeve, an inner sleeve, and an adjustment gasket. The bottom of the vibration isolator is connected to the floating slab through the outer sleeve. A spring is also provided at the bottom of the outer sleeve. Along the circumferential direction on the upper surface of the outer sleeve, there are several sleeve support plates. The inner sleeve is arranged on the top of the spring. Along the circumferential direction on the upper surface of the inner sleeve, there are several sleeve support angles. The adjustment gasket is arranged on the upper surface of the inner sleeve; it also includes jacks. The jacks are arranged in pairs on both sides of the track. The bottom of the jacks is inserted into the vibration isolator and connected to the floating slab track bed. There are several limit blocks in the middle of the jacks. The jacks are connected to the electric hydraulic pump station of the transport flatbed truck through hydraulic pipelines to control the synchronous jacking of several jacks.

[0045] The pump station generator serves as the power source of the electric hydraulic pump station and is powered by a diesel generator.

[0046] As the power source of the flatbed transporter, the power battery adopts a new energy battery. It takes power through an inverter circuit and converts it into alternating current. The power is transmitted to the drive wheel set through a motor, a reducer, and a drive shaft to control the vehicle to move forward or backward.

[0047] Embodiment 2

[0048] A method for using an intelligent jacking device for a steel spring floating slab track bed:

[0049] First, drive the intelligent jacking device for the steel spring floating slab track bed to the construction section to be jacked. Before starting the operation, check whether all components of the device are operating normally. After ensuring that the faults are excluded, first connect the hydraulic jacking jack to the electric hydraulic pump station through a hydraulic pipeline via the hydraulic pipeline connection port. Then, turn on the electric hydraulic pump station, input commands to the industrial control computer on the control panel, and the industrial control computer transmits the commands to the electrical control device. When starting the jacking, select to jack a certain jacking jack individually or synchronously jack all the jacks according to the state of the track bed slab. The electrical control console transmits the pressure and displacement of the jacks during the jacking process to the industrial control computer, and the industrial control computer displays and stores all the data of the current operation.

[0050] When the preset jacking height is reached, the industrial control computer stores the jacking data, turns off the electric hydraulic pump station and the generator, then removes the hydraulic pipeline connecting the hydraulic jack and the electric hydraulic pump station, and neatly winds and unwinds it by the automatic pipe reel. Finally, drive the transport flatbed vehicle, and the whole set of equipment leaves the operation site.

[0051] Embodiment 3

[0052] Specific steps for using an intelligent jacking device for a steel spring floating slab track bed:

[0053] (1) Drive the intelligent jacking device for the steel spring floating slab track bed to the construction section to be jacked. After stopping steadily, lock the drive wheel set with the foot brake, then place the rail shoes on the rails to block the drive wheel set, and finally fix the safety rope to the rails to complete the parking of the flatbed transporter.

[0054] (2) After placing the adjusting shims beside the floating slab sleeve, first place the adjusting shims inside the sleeve, and then place the jack. Rotate the jack as a whole so that its three limit blocks are below the sleeve support plate.

[0055] (3) Start the electric hydraulic pump station and the generator, check whether all components of the device are operating normally. After the check, select to jack a certain jacking jack individually or synchronously jack all the jacks according to the state of the track bed slab. Input the jacking command on the control panel and start the jacking. At this time, the compression height of the vibration isolator inside the sleeve decreases, and there is a gap of more than 12 mm between the three support angles of the vibration isolator and the sleeve support plate. The construction workers use an iron rod to move the adjusting shims so that their three corners are below the sleeve support plate.

[0056] (4) After recording and storing the jacking height and pressure data, perform the pressure relief operation. After the operation is completed, the vibration isolator rebounds, tightly pressing the adjustment shim against the sleeve support plate, and then remove the jack from the sleeve;

[0057] (5) Repeat processes (2) to (4). Place 3 pieces of 12-mm adjustment shims in each sleeve. The reaction force generated by the vibration isolator acts on the floating slab through the sleeve, slowly jacking up the floating slab track bed;

[0058] (6) Record the jacking data, check whether the jacking height of the floating slab meets the requirements. After the inspection is completed, turn off the electric hydraulic pump station and the generator, then remove the hydraulic pipeline connecting the hydraulic jack and the electric hydraulic pump station, and neatly wind it up by the cable reel;

[0059] (7) Check whether there are any tools left at the site. After completion, unlock the foot brake, the rail anchors and the safety rope of the transport flatbed truck, drive the transport flatbed truck, and move the entire set of equipment away from the work site.

[0060] The above is only a specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and the concept of the new model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A method of using an intelligent lifting device for a steel spring floating slab track bed. The intelligent lifting device for a steel spring floating slab track bed includes a floating slab and a track provided on the floating slab, and further includes a transport flatbed truck, and the transport flatbed truck is provided with an electric hydraulic pump station; a plurality of vibration isolators, including an outer sleeve, an inner sleeve and an adjustment gasket. The bottom of the vibration isolator is connected to the floating slab through the outer sleeve. A spring is further provided at the bottom of the outer sleeve. A plurality of sleeve support plates are provided on the upper surface of the outer sleeve along the circumferential direction. The inner sleeve is arranged on the top of the spring. A plurality of sleeve support angles are provided on the upper surface of the inner sleeve along the circumferential direction. The adjustment gasket is arranged on the upper surface of the inner sleeve; a plurality of jacks. The jacks are arranged in pairs on both sides of the track. The bottom of the jacks is inserted into the vibration isolators to be connected to the floating slab track bed. A plurality of limit blocks are provided in the middle of the jacks. The jacks are connected to the electric hydraulic pump station of the transport flatbed truck through hydraulic pipelines for controlling the synchronous lifting of the plurality of jacks; The method of use specifically includes: (1)Drive the intelligent jacking device for the steel spring floating slab track bed to the construction section to be jacked. After stopping stably, lock the driving wheel set with the foot brake, then place the rail shoes on the rail to block the driving wheel set, and finally fix the safety rope to the rail to complete the parking of the flatbed truck. (2)After placing the adjusting shims beside the shock absorber sleeve, first place the adjusting shims inside the sleeve, and then place the jack. Rotate the jack as a whole so that several limit blocks are located below the sleeve support plate. (3)Start the electric hydraulic pump station and the generator. Select to jack a single jacking jack or synchronously jack all the jacks according to the state of the track bed slab, and then start jacking. At this time, the compressed height of the shock absorber in the sleeve decreases, and there is a certain gap between the three support angles of the shock absorber and the sleeve support plate. Use an iron rod to move the adjusting shim so that its three corners are located below the sleeve support plate. (4)After recording and storing the jacking height and pressure data, perform the pressure relief operation. After the operation is completed, the shock absorber rebounds, tightly presses the adjusting shim against the sleeve support plate, and lift the jack out of the sleeve. (5)Repeat processes (2) to (4). Place several adjusting shims in each sleeve. The reaction force generated by the shock absorber acts on the floating slab through the sleeve, causing the floating slab track bed to slowly float up. (6)Record the jacking data, turn off the electric hydraulic pump station and the generator, then remove the hydraulic pipeline connecting the hydraulic jack and the electric hydraulic pump station, and neatly wind and unwind it by the automatic pipe coiler.

2. The method of using an intelligent lifting device for a steel spring floating slab track bed according to claim 1, wherein The electric hydraulic pump station is arranged at one end of the transport flatbed truck. The surface of the electric hydraulic pump station is provided with several hydraulic pipeline connection ports, and inside there are an industrial control computer, a control valve group, a hydraulic cylinder, a displacement monitoring device, a pressure monitoring device and an electrical control device.

3. The method of using an intelligent lifting device for a steel spring floating slab track bed according to claim 1, wherein The transport flatbed truck includes a vehicle body and a running device, and also includes a normally open to normally closed mechanism. The normally open to normally closed mechanism includes a brake handle, a steel wire rope, a sleeve and a push handle. The push handle is connected to the vehicle body through the sleeve. The sleeve is arranged at the bottom of the push handle, and the sleeve is connected to the brake handle through the steel wire rope; a hydraulic braking device. The hydraulic disc braking system includes a brake disc, a brake caliper, a small oil pump and a piston. The piston is arranged outside the wheel and connected to the brake handle. The brake disc is sleeved on the axle, and the brake caliper is arranged outside the brake disc. The brake caliper is connected to the piston through the small oil pump; an electromagnetic braking device. The electromagnetic braking device at least includes an in-wheel magnet and an electromagnetic brake. The electromagnetic brake includes a connecting disc, a brake disc, a brake pad and a fixed electromagnet. The fixed electromagnet is arranged inside the wheel. A brake pad is arranged on one side of the fixed electromagnet. The connecting disc and the brake disc are sleeved on the axle.

4. The method of using an intelligent lifting device for a steel spring floating slab track bed according to claim 1, wherein The intelligent jacking device for the steel spring floating slab track bed also includes a pump station generator. The pump station generator is arranged on the other side of the transport flatbed truck and is connected to the electric hydraulic pump station.

5. The method of using an intelligent lifting device for a steel spring floating slab track bed according to claim 1, wherein The intelligent jacking device for the steel spring floating slab track bed also includes a wire coiler and a power battery. The wire coiler is arranged on the surface of the transport flatbed truck, and the power battery is arranged at the bottom of the transport flatbed truck. The wire coiler can automatically wind and unwind the hydraulic pipeline.

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