CN111441200A - Polyurethane curing roadbed construction walking device with self-walking and pressure maintaining functions - Google Patents

Abstract

The invention provides a polyurethane solidified track bed construction traveling device with self-traveling and pressure maintaining functions, which is improved from the aspects of the traveling system reconnection self-traveling control and the hydraulic pressure maintaining system realization of line real-time pressure maintaining control, the upgrading and updating of a braking system, the optimization of a frame structural form and the like, is mainly used for carrying out the pouring and pressure maintaining of polyurethane materials on ballast track beds and suspended track slabs in normal lines and turnout areas, solves the problems of difficult downhill braking, uncontrollable line pressure maintaining forming, difficult moving after vehicle decompiling and the like of polyurethane solidified track bed construction equipment aiming at the existing polyurethane solidified track bed construction equipment, ensures that the equipment carried pouring system realizes the pouring, pressure maintaining and short-distance transportation of the lines, improves the utilization rate of the equipment, greatly improves the construction efficiency, and ensures the high efficiency and high quality of the polyurethane solidified track bed, High standard construction requirement.

Description

Polyurethane curing roadbed construction walking device with self-walking and pressure maintaining functions

Technical Field

The invention belongs to the technical field of railway construction equipment, and particularly relates to a polyurethane curing track bed construction running gear with self-running and pressure maintaining functions.

Background

The polyurethane solidified integral track bed is a third track structure between a ballast track and a ballastless track, and is formed by pouring liquid polyurethane material (formed by combining isocyanate, polyether and catalyst) into a ballast track bed which has reached stability, wherein the polyurethane material mixed according to a certain proportion can be foamed and expanded quickly after being poured into the track bed, gaps between the ballasts are fully extruded, and the track bed forms an elastic integral structure after being expanded and solidified. The polyurethane curing integral ballast bed construction equipment used in China at present is large equipment mainly comprising a material storage system, a premixing system, a pouring trolley, a drying and cooling trolley, a folding type getting-on and getting-off device, a pouring system generator set, a drying generator set and the like, and can meet the construction operation requirements of long lines and bridges of state railways. After pouring equipment fills liquid polyurethane materials into a gap of a track bed, the polyurethane materials are filled into a gap of a ballast track bed or a gap below a track plate, smoothness and height of a railway line are guaranteed not to be out of tolerance, an original method applies pressure to the track by means of self weight of a vehicle, so that smoothness and height of the railway line are guaranteed not to be out of tolerance, pressure maintaining pressure is not adjustable by the original pressure maintaining method, smoothness of the line is difficult to guarantee, therefore, a self-adaptive pressure maintaining device capable of adapting to unevenness of the track is needed, on one hand, pressure is applied to the line filled with the polyurethane materials, and on the other hand, filling of the polyurethane materials in the track bed can be better guaranteed. The invention discloses a roadbed solidification casting device, which is named as a self-propelled integral roadbed solidification casting device with the patent number of CN201720722971.6, and comprises wheel pairs and a frame, wherein the wheel pairs used by a casting system flat car and a storage system flat car in the patent are rigidly connected, the elastic buffer performance is poor, the riding comfort of personnel is affected, the vehicle running vibration is large, certain influence is caused on the device on the vehicle, and the vehicle trafficability is reduced; in addition, in this patent on the railway roadbed solidification pressurize structure, what adopted is that vehicle self several groups wheel are to carrying out the pressurize, adopts the vehicle dead weight to exert pressure to polyurethane curing material, and this kind of pressurize pressure is unchangeable, and the pressurize effect can only form according to vehicle gravity nature, and the pressurize limitation is big, and can not carry out regional pressurize to the switch district. There is therefore a need for improvements.

Disclosure of Invention

The technical problems solved by the invention are as follows: the invention provides a polyurethane curing track bed construction traveling device with self-traveling and pressure maintaining functions, which is improved from the aspects of repeated self-traveling control of a traveling system and realization of real-time pressure maintaining control of a line, upgrading and updating of a braking system, optimization of a frame structural form and the like of a hydraulic pressure maintaining system.

The technical scheme adopted by the invention is as follows: the polyurethane curing track bed construction traveling device with self-walking and pressure maintaining functions comprises a storage system flat car and a pouring system flat car, wherein the front end of the storage system flat car is in traction connection with the rear end of the pouring system flat car, the storage system flat car comprises a storage system flat car frame, the pouring system flat car comprises a pouring system flat car frame, a driving wheel pair and a driven wheel pair are respectively arranged at the two ends of the lower part of the storage system flat car frame and the lower part of the pouring system flat car frame, the driving wheel pair and the driven wheel pair adopt a guide frame type elastic suspension structure, a power system for driving the driving wheel pair to travel is connected onto the driving wheel pair, and the driving wheel pair and the driven wheel pair are both provided with air brake systems; a tool box is arranged in the middle of the lower portion of the storage system flat car frame, a general control platform is arranged at the front end of the upper portion of the storage system flat car frame, a storage tank is arranged in the middle of the upper portion of the storage system flat car frame, and a generator set and an air compressor are arranged at the rear end of the upper portion of the storage system flat car frame; the middle of the lower portion of the flatcar frame of the pouring system is provided with a hydraulic pressure maintaining wheel set and a pressure maintaining hydraulic system pump station, and the upper portion of the flatcar frame of the pouring system is provided with the pouring system.

Further inject above-mentioned technical scheme, hydraulic pressure maintaining wheelset includes the vertical pressurize hydraulic cylinder that is fixed in the casting system flatcar frame lower part, pressurize hydraulic cylinder passes through hydraulic pressure oil pipe with pressurize hydraulic system pump station and is connected, pressurize hydraulic cylinder lower extreme is equipped with the landing leg cylinder liner, landing leg cylinder liner lower extreme rotates through the round pin axle and supports there is the pressure retaining wheel.

Further inject above-mentioned technical scheme, the initiative wheel is to including the axletree and locate wheel and axle box at axletree both ends, the axle box includes the axle box body with frame fixed connection, axle box body both sides all are equipped with damping spring and wearing and tearing board, be equipped with vertical bumper shock absorber, front end housing and rear end cap on the axle box body.

The power system comprises an axle gear box arranged on an axle, the input end of the axle gear box is connected with a traction motor, and the axle gear box is fixed on a corresponding frame through a pull arm.

The technical scheme is further limited, the air braking system comprises a basic brake and an air bag, the basic brake is in a proper position for protecting the wheels, the air bag is fixed below the corresponding frame, the air bag is connected with an air compressor, and the air bag is connected with the basic brake through a brake pipeline; the foundation brake comprises a brake shoe hanging seat, a brake cylinder and a brake shoe are arranged on the brake shoe hanging seat, and the two brake shoes are connected through a brake pull rod.

Further inject above-mentioned technical scheme, the front and back end of storage system flatcar and the gating system flatcar all is equipped with draw gear, be equipped with vehicle lighting system and pilot on storage system flatcar and the gating system flatcar.

Compared with the prior art, the invention has the advantages that:

1. the two flatcars of the material storage system and the flatcar of the pouring system have the electric transmission self-walking function, can independently walk or reconnect to control walking through a control console or wireless remote control, and carry out replacement of a braking system into the functions of air braking and resistance braking, and optimize the structural form of a car frame, thereby fundamentally solving the problems of difficult braking of polyurethane curing track bed construction equipment on long and large downhill, difficult movement of the car after decompiling and the like, realizing the operation of railway special sections of long and large ramps and small-area construction, and meeting the operation construction requirements of the long and large ramps;

2. in the scheme, the driving wheel pair and the driven wheel pair are connected with the frame by adopting a guide frame type elastic suspension structure, so that the vehicle has good elastic buffer performance, the riding comfort of personnel is improved, the running vibration of the vehicle is small, the influence on various devices on the vehicle is reduced, the passing performance of the vehicle is improved, and the long-distance transportation of the vehicle is realized;

3. by adopting the hydraulic pressure maintaining wheel set, the vehicle support can be realized, the vehicle stability is improved, the adjustable track pressure maintaining function is realized, the pressure maintaining support leg combination and the pressure change can be controlled through an operating console or a wireless remote control according to the line condition, the full-section pressure maintaining of a straight line and a turnout area and the pressure maintaining of various turnout areas are realized, the effects of controllable pressure of a hydraulic pressure maintaining system and full pressure maintaining of the turnout area are ensured, the low-constant-speed operation can be carried out, the construction is not stopped, the traditional construction is not stopped, the working mode of the traveling and non-construction is broken, and the working efficiency is improved;

4. the invention not only arranges the gating system on the upper part of the flatcar frame of the gating system to realize the functions of line pouring and pressure maintaining, but also has the advantages of self-powered, integrated and miniaturized structure, convenient disassembly and combination of the car group and each functional assembly, and convenient long-distance transportation of equipment and flexible maneuvering of construction; the design of low-emission and low-noise model selection is adopted, and the environmental protection requirements of subway and urban rail construction are met.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an air brake system according to the present invention;

FIG. 3 is a schematic structural view of a driving wheel pair, a power system and a foundation brake in the present invention;

FIG. 4 is a schematic structural view of an axle housing according to the present invention;

fig. 5 is a schematic structural view of a hydraulic pressure maintaining wheel set according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one.. said element does not exclude the presence of other like elements in the process, method, article or apparatus that comprises the element.

Embodiments of the present invention are described in detail with reference to FIGS. 1-5:

the polyurethane curing track bed construction traveling device with the functions of self-walking and pressure maintaining comprises a storage system flat car 1 and a pouring system flat car 2, wherein the front end of the storage system flat car 1 is connected with the rear end of the pouring system flat car 2 in a traction manner, as shown in figure 1. The front end and the rear end of the storage system flat car 1 and the front end and the rear end of the pouring system flat car 2 are respectively provided with a traction device 17, and the storage system flat car 1 and the pouring system flat car 2 are respectively provided with a vehicle lighting system 19 and a barrier removal device 18.

Storage system flatcar 1 includes storage system flatcar frame 3, gating system flatcar 2 includes gating system flatcar frame 12, be equipped with toolbox 6 in the middle of the 3 lower parts of storage system flatcar frame, the 3 upper portion front ends of storage system flatcar frame are equipped with total control platform 11, be equipped with storage tank 10 in the middle of the 3 upper portions of storage system flatcar frame, the 3 upper portion rear ends of storage system flatcar frame are equipped with generating set 8 and air compressor machine 9.

And a driving wheel pair 4 and a driven wheel pair 13 are respectively arranged at the two ends of the lower part of the material storage system flatcar frame 3 and the lower part of the casting system flatcar frame 12. As shown in fig. 3, the driving wheel pair 4 and the driven wheel pair 13 adopt a pedestal type elastic suspension structure, and the driving wheel pair 4 comprises an axle 4-2 and wheels 4-1 and an axle box 4-3 arranged at two ends of the axle 4-2. As shown in FIG. 4, the axle box 4-3 includes an axle box body 4-3-1 fixedly connected to a vehicle frame, a damping spring 4-3-2 and a wear plate 4-3-3 are disposed on both sides of the axle box body 4-3-1, and a vertical damper 4-3-4, a front end cap 4-3-5 and a rear end cap 4-3-6 are disposed on the axle box body 4-3-1. The driving wheel pair 4 can be replaced by a small bogie. The driven wheel pair 13 has the same structure as the driving wheel pair 4.

The driving wheel pair 4 is connected with a power system 5 for driving the driving wheel pair to run, as shown in fig. 3, the power system 5 comprises an axle gear box 5-2 arranged on an axle 4-2, the input end of the axle gear box 5-2 is connected with a traction motor 5-3, and the axle gear box 5-2 is fixed on a corresponding frame through a pull arm 5-1. The generator set 8 supplies power to the traction motors 5-3, and the speed of the vehicle is controlled and adjusted by adopting frequency conversion control. The traction motor 5-3 can be powered by a storage battery.

The driving wheel pair 4 and the driven wheel pair 13 are both provided with an air brake system 7, as shown in fig. 2, the air brake system 7 comprises a foundation brake 7-1 which keeps a proper position with a wheel 4-1 and an air bag 7-3 which is fixed below a corresponding frame, the air bag 7-3 is connected with an air compressor 9, and the air bag 7-3 is connected with the foundation brake 7-1 through a brake pipeline 7-2. As shown in FIG. 3, the foundation brake 7-1 comprises a brake shoe hanger 7-1-2, a brake cylinder 7-1-1 and a brake shoe 7-1-3 are arranged on the brake shoe hanger 7-1-2, and the two brake shoes 7-1-3 are connected through a brake pull rod 7-1-4. The air compressor 9 supplies air to the air supply bag 7-3, the air supply bag 7-3 plays a role in storing air, then the air is sent to the basic brake 7-1, and the braking of the vehicle is realized through the control device of the master control console 11.

The storage system flat car 1 and the pouring system flat car 2 both have an electric transmission self-walking function, and can independently walk or reconnect to control walking through a control console or wireless remote control. The braking system is replaced by an air braking function and a resistance braking function, the structural form of the vehicle frame is optimized, the problems that the polyurethane curing ballast bed construction equipment is difficult to brake when the road is long and downhill, the vehicles are difficult to move after being disassembled and woven and the like are fundamentally solved, the operation of the construction of a long and long ramp railway special section and a small area is realized, and the operation construction requirement of the long and long ramp is met. The driving wheel set 4 and the driven wheel set 13 are connected with the frame through guide frame type elastic suspension structures, so that the vehicle has good elastic buffer performance, the riding comfort of personnel is improved, the running vibration of the vehicle is small, the influence on various devices on the vehicle is reduced, the passing performance of the vehicle is improved, and long-distance transportation of the vehicle is realized.

The upper portion of the flatcar frame 12 of the pouring system is provided with a container, the pouring system 16 is arranged in the container, the pouring system 16 comprises subsystems such as a raw material premixing system, a double-gun high-pressure foaming machine, a raw material pretreatment tank and a cooling and heating unit, heating, heat preservation and conveying of raw materials are achieved, and therefore conveying of construction raw materials of the pouring system is met. And a hydraulic pressure maintaining wheel set 14 and a pressure maintaining hydraulic system pump station 15 are arranged in the middle of the lower part of the flatcar frame 12 of the pouring system, and the pressure maintaining hydraulic system pump station 15 realizes pressure maintaining on the track bed through the hydraulic pressure maintaining wheel set 14. As shown in fig. 5, the hydraulic pressure maintaining wheel set 14 comprises a pressure maintaining hydraulic cylinder 14-3 vertically fixed at the lower part of the casting system flatcar frame 12, the pressure maintaining hydraulic cylinder 14-3 is connected with a pressure maintaining hydraulic system pump station 15 through a hydraulic oil pipe, a supporting leg cylinder sleeve 14-2 is arranged at the lower end of the pressure maintaining hydraulic cylinder 14-3, and a pressure maintaining wheel 14-1 is rotatably supported at the lower end of the supporting leg cylinder sleeve 14-2 through a pin shaft. Adopt hydraulic pressure pressurize wheelset 14, not only can realize the vehicle supports, improve vehicle stability, realize adjustable track pressurize function moreover, can be according to the circuit condition, through operation panel or wireless remote control pressurize landing leg combination and pressure variation, realize keeping pressure to straight line and switch district full section and to the regional pressurize of various switches, it is controllable to have guaranteed hydraulic pressure pressurize system pressure, the abundant effect of switch district pressurize, and can also carry out low constant speed operation, make the construction not stop, break the past construction not walk the line, walk the work pattern of not constructing, improve work efficiency.

The invention not only has the functions of line pouring and pressure maintaining, but also has self-power, is integrated and modeled, is convenient for the disassembly and combination of a vehicle group and each functional assembly, and is convenient for the long-distance transportation of equipment and the flexible maneuvering and construction; the low-emission and low-noise model selection design is adopted, the environment-friendly requirements of subway and urban rail construction are met, and the high-efficiency, high-quality and high-standard construction requirements are ensured.

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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. Polyurethane solidification railway roadbed construction walking device with from walking and pressurize function, including storage system flatcar (1) and gating system flatcar (2), storage system flatcar (1) front end and gating system flatcar (2) rear end traction connection, its characterized in that: the material storage system flat wagon (1) comprises a material storage system flat wagon frame (3), the pouring system flat wagon (2) comprises a pouring system flat wagon frame (12), two ends of the lower portion of the material storage system flat wagon frame (3) and the lower portion of the pouring system flat wagon frame (12) are respectively provided with a driving wheel set (4) and a driven wheel set (13), the driving wheel set (4) and the driven wheel set (13) adopt a guide frame type elastic suspension structure, the driving wheel set (4) is connected with a power system (5) for driving the driving wheel set to travel, and the driving wheel set (4) and the driven wheel set (13) are both provided with an air braking system (7); the front end of the upper part of the material storage system flatcar frame (3) is provided with a general control platform (11), the middle of the upper part of the material storage system flatcar frame (3) is provided with a material storage tank (10), and the rear end of the upper part of the material storage system flatcar frame (3) is provided with a generator set (8) and an air compressor (9); the hydraulic pressure maintaining wheel set (14) and the pressure maintaining hydraulic system pump station (15) are arranged in the middle of the lower portion of the casting system flatcar frame (12), and the casting system (16) is arranged on the upper portion of the casting system flatcar frame (12).

2. The polyurethane curing roadbed construction running gear with self-walking and pressure maintaining functions as claimed in claim 1, wherein the polyurethane curing roadbed construction running gear comprises: the hydraulic pressure maintaining wheel set (14) comprises a pressure maintaining hydraulic oil cylinder (14-3) vertically fixed at the lower part of a casting system flatcar frame (12), the pressure maintaining hydraulic oil cylinder (14-3) is connected with a pressure maintaining hydraulic system pump station (15) through a hydraulic oil pipe, a supporting leg cylinder sleeve (14-2) is arranged at the lower end of the pressure maintaining hydraulic oil cylinder (14-3), and a pressure maintaining wheel (14-1) is rotatably supported at the lower end of the supporting leg cylinder sleeve (14-2) through a pin shaft.

3. The polyurethane curing roadbed construction running gear with self-walking and pressure maintaining functions as claimed in claim 1, wherein the polyurethane curing roadbed construction running gear comprises: the driving wheel pair (4) comprises an axle (4-2), wheels (4-1) and axle boxes (4-3) which are arranged at two ends of the axle (4-2), the axle boxes (4-3) comprise axle box bodies (4-3-1) which are fixedly connected with a vehicle frame, damping springs (4-3-2) and abrasion plates (4-3-3) are arranged on two sides of each axle box body (4-3-1), and vertical dampers (4-3-4), front end covers (4-3-5) and rear end covers (4-3-6) are arranged on the axle box bodies (4-3-1).

4. The polyurethane curing roadbed construction running gear with self-walking and pressure maintaining functions as claimed in claim 3, wherein the polyurethane curing roadbed construction running gear comprises: the power system (5) comprises an axle gear box (5-2) arranged on an axle (4-2), the input end of the axle gear box (5-2) is connected with a traction motor (5-3), and the axle gear box (5-2) is fixed on a corresponding frame through a pull arm (5-1).

5. The polyurethane curing roadbed construction running gear with self-walking and pressure maintaining functions as claimed in claim 3, wherein the polyurethane curing roadbed construction running gear comprises: the air brake system (7) comprises a basic brake (7-1) which is kept in a proper position with the wheel (4-1) and an air bag (7-3) fixed below a corresponding frame, the air bag (7-3) is connected with an air compressor (9), and the air bag (7-3) is connected with the basic brake (7-1) through a brake pipeline (7-2); the basic brake (7-1) comprises a brake shoe hanging seat (7-1-2), a brake cylinder (7-1-1) and a brake shoe (7-1-3) are arranged on the brake shoe hanging seat (7-1-2), and the two brake shoes (7-1-3) are connected through a brake pull rod (7-1-4).

6. The polyurethane curing roadbed construction running gear with self-walking and pressure maintaining functions as claimed in claim 1, wherein the polyurethane curing roadbed construction running gear comprises: the front end and the rear end of the storage system flat car (1) and the pouring system flat car (2) are respectively provided with a traction device (17), the storage system flat car (1) and the pouring system flat car (2) are provided with a vehicle lighting system (19) and a barrier removing device (18), and a tool box (6) is arranged in the middle of the lower portion of the storage system flat car frame (3).

Images