CN111593621B - Movable pump pipe concrete pouring system for ballastless track integral ballast bed - Google Patents
Movable pump pipe concrete pouring system for ballastless track integral ballast bed Download PDFInfo
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- CN111593621B CN111593621B CN202010412787.8A CN202010412787A CN111593621B CN 111593621 B CN111593621 B CN 111593621B CN 202010412787 A CN202010412787 A CN 202010412787A CN 111593621 B CN111593621 B CN 111593621B
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- 239000004567 concrete Substances 0.000 title claims abstract description 208
- 238000005086 pumping Methods 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 49
- 239000010959 steel Substances 0.000 claims description 49
- 210000001503 joint Anatomy 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 241001669679 Eleotris Species 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
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- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention provides a movable pump pipe concrete pouring system for an integral ballast bed of a ballastless track. The concrete pouring system comprises a mobile concrete pumping machine, a pump pipe, a mobile concrete pouring device and a plurality of pump pipe pushing trolleys, wherein the mobile concrete pouring device comprises a walking underframe, a supporting frame, a supporting platform fixedly welded at the top of the supporting frame, a rotating platform arranged on the supporting platform through a rotating mechanism and a concrete pouring bent pipe fixedly arranged on the rotating platform, a feeding port of the pump pipe is in sealing connection with a discharging end of the mobile concrete pumping machine, the discharging end extends into the bottom of the mobile concrete pouring device and is vertically upwards in sealing connection with the placing concrete pouring bent pipe in a rotating mode, and the pump pipe pushing trolleys are equidistantly arranged below the pump pipe. The invention solves the problem of long-distance accurate concrete pouring in railway traffic intervals, realizes multi-angle accurate feeding, and improves the maneuverability and concrete pouring efficiency of the pumping device.
Description
Technical Field
The invention belongs to the field of ballast track bed concrete pouring, and particularly relates to a movable pump pipe concrete pouring system for an integral ballast track bed.
Background
Ballastless tracks are mostly adopted in high-speed rails, subways and the like in China at present. The track engineering construction process comprises the steps of firstly pouring a track bed, laying sleepers, installing fasteners, installing steel rails, finely adjusting the steel rails through a support frame, and finally performing concrete pouring on the track bed by utilizing a ground pump or a concrete carrier (walking on a track). Locking the steel rail to form the final ballastless track bed structure.
The concrete carrier is high in cost for concreting the ballast bed, and a plurality of areas with narrow working spaces, such as track installation in a tunnel, cannot be reached by the concrete tank truck. The ground pump is used for pouring concrete, and the ground pump and the pump pipe are used for pouring concrete, so that the pump pipe cannot be arranged above the track because the pump pipe is greatly disturbed when being used for pouring concrete; the method is characterized in that the ground pump pipe is fixed in the middle of a sleeper or on the side face of the sleeper, and concrete is pumped by the ground pump at a feed opening or under a bridge after the track fine adjustment is finished. The existing manner of pouring concrete by a ground pump has the following defects: 1. the assembly is carried out section by section, so that the operation efficiency is low; 2. the ground pump sprays concrete at an excessively high speed, the impact force is large, the concrete discharging size is difficult to control, and the sprayed concrete has serious pollution to steel rails, fasteners and sleeper; 3. the ground pump and the conveying pipe are heavy, and the pumping pipe is required to be spliced and poured aiming at long-distance ballast bed pouring, so that the work efficiency is low; 4. the pouring range of the ground pump pipe is small, the edge part cannot be directly poured in place, manual concrete transportation is often utilized, and the construction efficiency is low; 5. the ground pump has poor maneuverability and is unfavorable for pouring the ballast bed in a long-distance interval.
In addition, a track bed concrete pouring mode is adopted, a track laying gantry crane is utilized to convey a hopper to the site, then manual pouring is utilized to pour concrete, a track is needed to be installed in advance, the quantity of concrete materials poured once is small, the operation efficiency is lower, and after the hopper discharging is finished, the cleaning of the concrete attached to the inner wall of the hopper is difficult.
Disclosure of Invention
The invention provides a movable pump pipe concrete pouring system for an integral ballast bed of a ballastless track, which aims at the problem of long-distance concrete pouring in a railway traffic zone, and the pouring system is used for pouring a ground pump and a concrete pouring device on the track, so that the problem of long-distance concrete accurate pouring in the railway traffic zone is solved, the maneuverability of the pumping device is improved, multi-angle accurate feeding can be achieved, and the concrete pouring efficiency is improved.
In order to solve the technical problems, the invention provides a movable pump pipe concrete pouring system for an integral ballast bed of a ballastless track, which comprises a movable concrete pumping machine, a pump pipe, a movable concrete pouring device and a plurality of pump pipe pushing trolleys, wherein the movable concrete pumping machine comprises a movable platform and a concrete ground pump arranged on the movable platform, and platform travelling wheels matched with steel rails of the ballastless track are arranged at the bottom of the movable platform; the movable concrete pouring device comprises a walking underframe, a supporting frame, a supporting platform, a rotating platform and a concrete pouring bent pipe, wherein an underframe travelling wheel matched with a steel rail of a ballastless track is arranged at the bottom of the walking underframe, the supporting frame is a supporting frame body with a small upper part and a large lower part, the bottom of the supporting frame body is welded on the walking underframe, the supporting platform is fixedly welded at the top of the supporting frame, the rotating platform is arranged on the supporting platform through a rotating mechanism and rotates along the supporting platform under the action of the rotating mechanism, a concrete discharging hole is formed in the rotating platform, a pump pipe butt joint hole is correspondingly formed in the supporting platform, the concrete pouring bent pipe is fixedly arranged on the rotating platform, a feeding hole of the concrete pouring bent pipe is in sealing butt joint with an upper port of the concrete discharging hole of the rotating platform, one end of a pump pipe is in sealing butt joint with a discharging hole of a concrete pump, and the other end of the pump pipe extends to the bottom of the movable concrete pouring device and vertically upwards penetrates through the supporting frame and the supporting platform to be in rotary sealing connection with the concrete discharging hole of the rotating platform; the pump pipe pushing trolley comprises a strip-shaped pump pipe supporting frame and pump pipe pushing travelling wheels symmetrically arranged at the bottom of the pump pipe supporting frame, a pump pipe fixing piece is arranged above the pump pipe supporting frame, and a plurality of pump pipe pushing trolleys are arranged at the bottom of the pump pipe between the mobile concrete pumping machine and the mobile concrete pouring device in a dispersing mode.
The invention further adopts the technical scheme that: the walking underframe is a square underframe, four underframe walking wheels are arranged at the bottom of the square underframe, the square underframe comprises two driving wheels and two driven wheels, each driving wheel is provided with a driving motor in a matching way, a motor control box is arranged on the walking underframe, and the driving motors of the two driving wheels are controlled to synchronously work through the motor control box; the walking chassis is connected with a pump pipe pushing trolley adjacent to the mobile concrete pouring device through two parallel first dowel bars, and the mobile platform is connected with a pump pipe pushing trolley adjacent to the mobile concrete pumping machine through two parallel second dowel bars.
The invention has the preferable technical scheme that: the plurality of pump pipe pushing trolleys are equidistantly distributed at the bottom of the pump pipe between the mobile concrete pumping machine and the mobile concrete pouring device, and the distance between two adjacent pump pipe pushing trolleys is 5-8 m.
The invention has the preferable technical scheme that: the rotating mechanism comprises a rotating motor, a driving gear and a transmission gear, wherein the rotating motor is arranged on the supporting platform, and an output shaft of the rotating motor extends out of the supporting platform; the driving gear is arranged on an output shaft of the rotating motor, the transmission gear is arranged at the bottom of the rotating platform and meshed with the driving gear, the rotating platform is driven to rotate by the driving gear and the transmission gear under the control of the rotating motor, a protective shell is arranged outside the rotating motor, a sleeve is arranged in the middle of the protective shell, and the pump pipe penetrates out of the sleeve from the sleeve to be in rotary sealing connection with a concrete discharge hole on the rotating platform; and a distribution box is arranged on the rotary platform and is used for supplying power to the rotary motor.
The invention has the preferable technical scheme that: the pump pipe is in rotary sealing connection with the rotary platform through a rotary sleeve assembly, the rotary sleeve assembly comprises a rotary sleeve fixedly installed in a concrete discharging hole in the middle of the rotary platform and a fixed sleeve fixedly arranged on the supporting platform, and the upper end of the rotary sleeve extends out of the rotary platform and is in sealing connection with a feed inlet of the concrete pouring elbow through a connecting flange plate; the lower end of the fixed sleeve is in sealing butt joint with the pump pipe, the upper end of the fixed sleeve is provided with a rotary groove, and the lower end of the rotary sleeve is inserted into the rotary groove of the fixed sleeve and is in rotary connection with the rotary groove through a rolling bearing.
The invention further adopts the technical scheme that: the width of the walking chassis is larger than the distance between the two tracks of the ballastless track and smaller than the sleeper length of the ballastless track, and the chassis walking wheels at the bottom of the walking chassis are arranged on the two tracks of the ballastless track and walk along the two tracks in the use process; the support frame comprises four main support steel frames and a plurality of transverse support frames, the four main support steel frames are obliquely arranged from bottom to top along the periphery to the middle, the support platform is a circular platform, and the support platform is welded at the top ends of the four main support steel frames.
The invention has the preferable technical scheme that: the rotary platform consists of a middle circular platform and strip-shaped platforms symmetrically arranged on two sides of the circular platform, and the two strip-shaped platforms are on the same straight line; the concrete pouring elbow is an elbow structure which is formed by splicing one or two or more ninety-degree elbows according to any angle and extends out of the walking chassis, and a concrete pouring hose installation joint is arranged at a discharge hole of the concrete pouring elbow; the concrete pouring bent pipe arranged on the upper part of the rotary platform is parallel to one side of the strip-shaped platform and is connected with the strip-shaped platform through a supporting piece, a traction steel wire is arranged between the transverse bent pipe and the vertical bent pipe, and the distribution box is arranged on the other side of the rotary platform and is provided with a tool box.
The invention further adopts the technical scheme that: the movable platform is a square platform, platform travelling wheels are respectively arranged at the four corners of the bottom of the movable platform, the width of the movable platform is larger than the width between two tracks of the ballastless track and smaller than the sleeper length of the ballastless track, and the platform travelling wheels at the bottom of the movable platform are arranged on the two tracks of the ballastless track in the use process and travel along the two tracks.
The invention further adopts the technical scheme that: the pump pipe support frame is made of channel steel, and the length of the pump pipe support frame is larger than the distance between two steel rails of the ballastless track and smaller than the length of a sleeper of the ballastless track; the pump pipe pushing travelling wheels are fixedly arranged at the bottom of the pump pipe supporting frame through the angle steel supporting frame, and the two pump pipe pushing travelling wheels at the bottom of the pump pipe supporting frame are respectively arranged on two steel rails of the ballastless track and travel along the two steel rails in the use process; the pump pipe mounting is U type snap ring, sets up in the middle part of pump pipe support frame.
The invention further adopts the technical scheme that: the two ends of the first dowel bar are respectively connected with the walking underframe and a pump pipe pushing trolley adjacent to the mobile concrete pouring device in a hinged manner; and two ends of the second dowel bar are respectively connected with the mobile platform and a pump pipe pushing trolley adjacent to the mobile concrete pumping machine in a hinged manner.
According to the invention, the concrete pouring device can walk on a track by itself, a plurality of pump pipe supporting trolleys and a movable ground pump can be driven to move together by utilizing the pump pipes, the concrete pouring device can realize pouring of concrete through the concrete pouring bent pipe after the pump pipes are lifted up by the supporting frame, the pump pipes vertically rise to the rotating platform and are connected with the concrete pouring bent pipe, the concrete pouring bent pipe is vertically upwards and horizontally and forwards extended for a section after being vertically and downwards bent for 90 degrees, and is bent leftwards or rightwards after being vertically and downwards bent for 90 degrees, the pumping speed of concrete is reduced in a mode of multiple rising and falling and turning angles, a joint of a concrete pouring hose is arranged at a discharge hole of the concrete pouring bent pipe, a plastic hose can be installed, the direction and the extending length of the discharge are arbitrarily controlled, and the rotating platform of the concrete pouring device is matched, so that the effect of 360-degree pouring is achieved.
The invention has the beneficial effects that:
1. The invention comprises a movable ground pump, a pump pipe supporting trolley and a concrete pouring device, wherein the whole system is changed from a fixed type to a movable type, so that the concrete can be poured on a track in a movable way, the trouble of assembling the pump pipe is reduced, the working efficiency is increased, and the maneuverability of the pumping device is improved;
2. According to the invention, the pump pipe is vertically elevated upwards from the horizontal direction by the support frame of the movable concrete pouring device, and a plurality of bent pipes are added, so that the pumping speed is reduced, and the pollution of rails, fasteners and sleepers caused by high-speed concrete spraying is avoided;
3. According to the invention, the distribution box and the tool box are used for balancing the concrete pouring bent pipe, so that the whole movable concrete pouring device can be kept balanced, the distribution box can be used for providing power for the whole system, and the tool box can be used for storing common tools, so that the movable concrete pouring device is convenient to disassemble and wash;
4. the pouring platform of the movable concrete pouring device can rotate and is matched with the hose pouring, so that 360 dead angle-free accurate feeding is achieved, and the pollution of concrete to structures such as steel rails is further avoided;
5. according to the invention, the pump pipe is supported by the pump pipe supporting trolley, so that the pump pipe, the concrete pouring device and the ground pump can be conveniently moved integrally, and the large disturbance of the vibration of the pump pipe to the track in the concrete pumping process can be avoided.
The concrete pouring device is simple in integral structure and convenient to use, can achieve multi-angle accurate feeding, solves the problem of long-distance accurate concrete pouring in railway traffic intervals, and improves the maneuverability and concrete pouring efficiency of the pumping device.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIGS. 2 and 3 are schematic views of the structure of the present invention on a track;
FIG. 4 is a schematic view in the direction A of FIG. 2;
FIG. 5 is a top view of the mobile concrete placement device of the present invention;
FIG. 6 is a schematic diagram showing the front structure of the mobile concrete pouring device according to the present invention;
FIG. 7 is a schematic structural view of a connection part of a pump pipe and a concrete pouring bent pipe in the invention;
FIG. 8 is a schematic view of the construction of the rotating sleeve assembly of the present invention;
FIG. 9 is a longitudinal cross-sectional view of the rotatable sleeve assembly of the present invention;
FIG. 10 is a cross-sectional view of a pump tube pushing cart according to the present invention;
FIG. 11 is a schematic side view of a pump tube pushing cart according to the present invention;
FIG. 12 is a top view of a pump tube pushing cart according to the present invention;
fig. 13 is a view showing a state of use of the pump tube pushing cart according to the present invention.
In the figure: 1-mobile concrete pumping machine, 100-mobile platform, 101-concrete pump, 102-platform travelling wheel, 2-pump pipe, 3-mobile concrete pouring device, 300-travelling chassis, 301-support frame, 302-support platform, 303-rotary platform, 304-concrete pouring elbow, 305-chassis travelling wheel, 306-rotary mechanism, 3060-rotary motor, 3061-driving gear, 3062-driving gear, 307-protective casing, 308-rotary sleeve, 309-fixed sleeve, 310-rotary groove, 311-rolling bearing, 312-pouring hose installation joint, 313-driving motor, 314-motor control box, 315-distribution box, 316-support piece, 317-traction steel wire, 318-tool box, 4-pump pipe pushing trolley, 400-pump pipe support frame, 401-pump pipe pushing travelling wheel, 402-pump pipe fixing piece, 403-first dowel bar, 404-second dowel bar, 405-angle steel support frame, 5-steel rail, 6-sleeper, 7-tunnel wall surface.
Detailed Description
The invention is further described below with reference to the drawings and examples. Fig. 1 to 13 are drawings of embodiments, which are drawn in a simplified manner, for the purpose of clearly and concisely explaining embodiments of the present invention. The following technical solutions presented in the drawings are specific to embodiments of the present invention and are not intended to limit the scope of the claimed invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present invention.
The embodiment provides a movable pump pipe concrete pouring system for an integral ballast bed of a ballastless track, which is shown in fig. 1 to 3 and comprises a movable concrete pumping machine 1, a pump pipe 2, a movable concrete pouring device 3 and a plurality of pump pipe pushing trolleys 4. In the ballast bed pouring process of the ballastless track in the tunnel, the movable concrete pouring device 3 is arranged at the forefront, the movable concrete pumping machine 1 is arranged at the rearrear, the plurality of pump pipe pushing trolleys 4 are equidistantly dispersed at the bottom of the pump pipe 2 between the movable concrete pumping machine 1 and the movable concrete pouring device 3, and the distance between two adjacent pump pipe pushing trolleys 4 is 5-8 m. The first pump pipe pushing trolley 4 adjacent to the mobile concrete pumping machine 1 is connected with the mobile concrete pumping machine 1 through two parallel second dowel bars 404, the last pump pipe pushing trolley 4 adjacent to the mobile concrete pouring device 3 is connected with the mobile concrete pouring device 3 through two parallel first dowel bars 403, and in order not to influence the running and turning of the whole pouring system, two ends of the first dowel bars 403 are respectively connected with the running underframe 300 and the pump pipe pushing trolley 4 adjacent to the mobile concrete pouring device 3 through hinges; two ends of the second dowel bar 404 are respectively hinged with the mobile platform 100 and the pump pipe pushing trolley 4 adjacent to the mobile concrete pumping machine 1. One end of the pump pipe 2 is in sealing butt joint with a discharge hole of the concrete pump 101, the other end of the pump pipe 2 extends to a feed inlet of the movable concrete pouring device 3, the middle of the pump pipe 2 is fixed on a plurality of pump pipe pushing trolleys 4, the movable concrete pouring device 3 can be driven by itself, and the movable concrete pumping machine 1 and the plurality of pump pipe pushing trolleys 4 are driven to move along the steel rail 5 simultaneously through the traction of the pump pipe 2, the first dowel steel 403 and the second dowel steel 404, so that the whole device is changed from fixed type to movable type.
The concrete pouring system according to the embodiment, as shown in fig. 1 and fig. 2, the mobile concrete pumping machine 1 includes a mobile platform 100 and a concrete pump 101 mounted on the mobile platform 100, the mobile platform 100 is a square platform, platform travelling wheels 102 matched with the rails 5 of the ballastless track are respectively disposed at the four corners of the bottom of the mobile platform 100, the width of the mobile platform 100 is greater than the distance between the two rails 5 of the ballastless track and less than the length of the sleeper 6 of the ballastless track, and the platform travelling wheels 102 at the bottom of the mobile platform 100 are disposed on the two rails 5 of the ballastless track and can travel along the two rails 5 in the use process. As shown in fig. 10 to 13, the pump pipe pushing trolley 4 includes a long pump pipe support 400 and pump pipe pushing travelling wheels 401 symmetrically disposed at the bottom of the pump pipe support 400, a pump pipe fixing member 402 is disposed above the pump pipe support 400, the pump pipe support 400 is made of channel steel, and the length of the pump pipe support 400 is greater than the distance between two steel rails 5 of the ballastless track and less than the length of a sleeper 6 of the ballastless track; the pump pipe pushing travelling wheels 401 are fixedly arranged at the bottom of the pump pipe supporting frame 400 through angle steel supporting frames 405, and each side of the pump pipe pushing travelling wheels 401 comprises two wheel bodies which are arranged on the angle steel supporting frames 405 side by side; two pump pipe pushing travelling wheels 401 at the bottom of the pump pipe support 400 are respectively arranged on two steel rails 5 of the ballastless track in the use process and travel along the two steel rails 5; the pump tube fixing member 402 is a U-shaped snap ring, and is disposed in the middle of the pump tube support 400. As shown in fig. 4, the mobile concrete pouring device 3 includes a walking chassis 300, a support frame 301, a support platform 302, a rotating platform 303 and a concrete pouring elbow 304, where the walking chassis 300 is a square chassis, the width of the walking chassis is greater than the distance between two rails 5 of the ballastless track and less than the length of a sleeper 6 of the ballastless track, four chassis travelling wheels 305 matched with the rails 5 of the ballastless track are provided at the bottom of the walking chassis, and the chassis travelling wheels 305 at the bottom of the walking chassis 300 are placed on the two rails 5 of the ballastless track and travel along the two rails 5 in the use process. As shown in fig. 1 to 3, one end of the pump pipe 2 is in sealing butt joint with a discharge hole of the concrete pump 101, and the other end of the pump pipe extends to the bottom of the movable concrete pouring device 3 and is vertically upwards in rotary sealing connection with the concrete pouring bent pipe 304; the four chassis traveling wheels 305 of the movable concrete pouring device 3 comprise two driving wheels and two driven wheels, each driving wheel is provided with a driving motor 313 in a matching way, the driving motors 313 are connected with the corresponding driving wheels through transmission mechanisms, motor control boxes 314 are arranged on the traveling chassis 300, and the driving motors 313 of the two driving wheels are controlled to synchronously work through the motor control boxes 314 to drive the two driving wheels to move simultaneously.
The concrete structure of the movable concrete pouring device 3 in the embodiment is shown in fig. 4 to 6, the supporting frame 301 is composed of four main supporting steel frames and a plurality of transverse supporting frames, the four main supporting steel frames are obliquely arranged from bottom to top along the periphery to the middle to form a supporting frame body with a small upper part and a large lower part, and the plurality of transverse supporting frames are arranged among the four main supporting steel frames. The supporting platform 302 is a circular platform, and is welded to the top end of the supporting frame 301. The rotating platform 303 consists of a middle circular platform and strip-shaped platforms symmetrically arranged on two sides of the circular platform, and the two strip-shaped platforms are on the same straight line; the middle circular portion of the rotation platform 303 is mounted on the support platform 302 by a rotation mechanism 306 and rotates along the support platform 302 by the rotation mechanism 306. A concrete discharging hole is formed in the middle of the rotary platform 303, a pump pipe butt joint hole is correspondingly formed in the supporting platform 302, as shown in fig. 7, a rotary sleeve 308 is fixedly arranged in the concrete discharging hole, and the upper end of the rotary sleeve 308 extends out of the rotary platform 303 and is in sealing connection with a feed inlet of a concrete pouring elbow 304 through a connecting flange plate; a fixed sleeve 309 is installed in the pump pipe butt joint hole, the lower end of the fixed sleeve 309 is in sealing butt joint with the pump pipe 2, and the upper end is provided with a rotary groove 310. As shown in fig. 8 and 9, the lower end of the rotary sleeve 308 is inserted into a rotary groove 310 of the fixed sleeve 309, and is rotatably connected with the rotary groove 310 through a rolling bearing 311, and can drive the rotary sleeve 308 to rotate in the fixed sleeve 309 during the rotation process of the rotary platform 303, and the rotary sleeve 308 and the fixed sleeve 309 form a rotary sleeve assembly; the upper port of the rotary sleeve 308 is in sealing butt joint with the feed inlet of the concrete pouring elbow 304, and the lower port of the fixed sleeve 309 is in sealing butt joint with the discharge outlet of the pump pipe 2.
In actual manufacturing, the connecting part of the fixed sleeve 309 and the rotary sleeve 308 can be directly arranged into a structure similar to a finished rolling bearing, a first flange plate is welded at the bottom of an outer sleeve of the rolling bearing, the diameter of an inner hole of the first flange plate is smaller than the inner diameter of an inner sleeve of the rolling bearing, then a sleeve is welded at the inner hole of the first flange plate to extend downwards, a second flange plate is welded to form a fixed sleeve 309, the fixed sleeve plate is in sealing butt joint with a discharge hole of the pump pipe 2 through the second flange plate at the bottom of the fixed sleeve 309, the first flange plate at the upper part is used for being fixed on the protective shell 7, and the height of the upper end of the inner sleeve plate welded at the inner hole of the first flange plate is higher than the height of an inner sleeve and an outer sleeve of the rolling bearing, so that concrete can be prevented from flowing backwards into the rolling bearing; a cylinder structure with the same diameter as the inner sleeve is welded on the upper part of the inner sleeve of the rolling bearing to form a rotary sleeve 308, and a third flange plate is welded on the upper port of the rotary sleeve 308 and is used for being fixed on the rotary platform 303 and being in butt joint with a feed inlet of the concrete pouring elbow 304.
In the embodiment, the movable concrete pouring device 3 is provided, the concrete pouring elbow 304 is formed by splicing three ninety-degree elbows and a straight pipe, as shown in fig. 4 to 7, one elbow is vertically fixed on the rotating platform 303, the feed inlet of the elbow is in sealing butt joint with the upper port of the rotating sleeve 308, then the elbow horizontally extends to extend out of the traveling chassis 300 through the straight pipe, then vertically extends downwards through the second elbow, finally horizontally faces or backwards through the third elbow, and the discharge port of the third elbow is provided with a concrete pouring hose installation joint 312, which can be used for connecting a plastic hose to realize the concrete pouring process of any angle. The concrete pouring bent pipe 304 arranged at the upper part of the rotary platform 303 is parallel to one side of the strip-shaped platform and is connected with the strip-shaped platform through a supporting piece 316, and a traction steel wire 317 is arranged between the transverse bent pipe and the vertical bent pipe; the distribution box 315 and the tool box 318 are arranged on the strip-shaped platform on the other side of the rotary platform 303, the distribution box 315 and the tool box 318 can play a role in balancing, the distribution box 315 is utilized to provide power for the whole system, and the tool box 318 can be used for storing some common tools, so that the movable concrete pouring device can be disassembled and washed conveniently.
In the embodiment, the rotating mechanism 306 of the movable concrete pouring device 3 is shown in fig. 7, and comprises a rotating motor 3060, a driving gear 3061 and a transmission gear 3062, wherein the rotating motor 3060 is arranged on the bottom surface of the supporting platform 302, and an output shaft of the rotating motor 3060 extends out of the supporting platform; the driving gear 3061 is installed on the output shaft of the rotating motor 3060, the transmission gear 3062 is installed at the bottom of the rotating platform 303 and meshed with the driving gear 3061, the rotating platform 303 is driven to rotate through the driving gear 3061 and the transmission gear 3062 under the control of the rotating motor 3060, a protective housing 307 is arranged outside the rotating motor 3060, the protective housing 307 is fixedly connected with the supporting platform 302, and the fixed sleeve 309 is arranged in the middle of the protective housing 307 and the supporting platform 302.
When the system is particularly used, as shown in fig. 2 and 3, the whole system is transported to a ballastless track in a tunnel, the movable concrete pouring device 3 is arranged at the forefront, the movable concrete pumping machine 1 is arranged at the rearrear, the plurality of pump pipe pushing trolleys 4 are equidistantly dispersed at the bottom of the pump pipe 2 between the movable concrete pumping machine 1 and the movable concrete pouring device 3, and the distance between two adjacent pump pipe pushing trolleys 4 is 5-8 m. The first pump pipe pushing trolley 4 close to the mobile concrete pumping machine 1 is hinged with the mobile platform 100 of the mobile concrete pumping machine 1 through two parallel second dowel bars 404, the last pump pipe pushing trolley 4 close to the mobile concrete pouring device 3 is hinged with the traveling underframe 300 of the mobile concrete pouring device 3 through two parallel first dowel bars 403, one end of the pump pipe 2 is in sealed butt joint with a discharge hole of the concrete pump 101, the other end of the pump pipe extends to the bottom of the mobile concrete pouring device 3 and is vertically upwards connected with the lower end of a fixed sleeve 309 of a rotary sleeve assembly in a sealed mode, a driving wheel at the bottom of the mobile concrete pouring device 3 provides power for the whole system, and then the whole system can travel along a track under the traction of the pump pipe 2, the first dowel bars 403 and the second dowel bars 404. Stopping pouring in the walking process, when pouring concrete, pumping concrete to the mobile concrete pouring device 3 through the mobile concrete pumping machine 1 and the pump pipe 2, enabling the concrete to vertically and upwards enter the concrete pouring elbow 304 from the discharge hole of the pump pipe 2, turning up and down through the concrete pouring elbow 304, reducing the discharge speed of the concrete, and finally enabling concrete pouring to be carried out through a plastic hose connected to the discharge hole of the concrete pouring elbow 304. When the concrete casting of one section is finished, the whole casting system can be pushed or driven to advance through the driving wheel, and casting operation is carried out on the next section. The pump pipe and the rotary sleeve assembly, the concrete pouring elbow 304 and the connection parts of the concrete pouring elbow 304 and other pipe joints are all connected in a sealing way by adopting flange plates, and rubber gaskets can be arranged at the connection parts to increase the sealing effect.
In summary, the present invention is not limited to the above embodiments, but may be implemented by any similar or identical means.
Claims (10)
1. The utility model provides a ballastless track is portable pump pipe concrete placement system for whole railway roadbed which characterized in that: the concrete pouring system comprises a mobile concrete pumping machine (1), a pump pipe (2), a mobile concrete pouring device (3) and a plurality of pump pipe pushing trolleys (4), wherein the mobile concrete pumping machine (1) comprises a mobile platform (100) and a concrete ground pump (101) arranged on the mobile platform (100), and platform travelling wheels (102) matched with steel rails (5) of ballastless tracks are arranged at the bottom of the mobile platform (100); the movable concrete pouring device (3) comprises a walking chassis (300), a supporting frame (301), a supporting platform (302), a rotating platform (303) and a concrete pouring bent pipe (304), wherein the bottom of the walking chassis (300) is provided with a chassis walking wheel (305) matched with a steel rail (5) of a ballastless track, the supporting frame (301) is a supporting frame body with a small upper part and a large lower part, the bottom of the supporting frame body is welded on the walking chassis (300), the supporting platform (302) is fixedly welded on the top of the supporting frame (301), the rotating platform (303) is installed on the supporting platform (302) through a rotating mechanism (306) and rotates along the supporting platform (302) under the action of the rotating mechanism (306), a concrete discharging hole is formed in the rotating platform (303), a pump pipe butt joint hole is correspondingly formed in the supporting platform (302), the concrete pouring bent pipe (304) is fixedly installed on the rotating platform (303), the feeding hole is in sealing butt joint with the upper end of the concrete discharging hole of the rotating platform (303), one end of the pump pipe (2) is in sealing connection with the bottom of the concrete discharging hole of the rotating platform (303), and the other end of the pump pipe (2) is in sealing connection with the concrete discharging hole of the rotating platform (303), and the other end of the pump pipe extends to the rotating platform (101) and extends to the other end of the concrete discharging hole (101) in sealing mode; pump line propelling movement dolly (4) are including rectangular pump line support frame (400) and symmetry pump line propelling movement walking wheel (401) that set up pump line support frame (400) bottom, are equipped with pump line mounting (402) in pump line support frame (400) top, and a plurality of pump line propelling movement dolly (4) disperse and set up pump line (2) bottom between portable concrete pumping machine (1) and portable concrete placement device (3).
2. The movable pump pipe concrete pouring system for the ballastless track integral ballast bed of claim 1, wherein the movable pump pipe concrete pouring system is characterized in that: the walking chassis (300) is a square chassis, four chassis walking wheels (305) are arranged at the bottom of the square chassis, the square chassis comprises two driving wheels and two driven wheels, each driving wheel is provided with a driving motor (313) in a matching way, a motor control box (314) is arranged on the walking chassis (300), and the driving motors (313) of the two driving wheels are controlled to synchronously work through the motor control box (314); the walking chassis (300) is connected with a pump pipe pushing trolley (4) adjacent to the mobile concrete pouring device (3) through two parallel first dowel bars (403), and the mobile platform (100) is connected with the pump pipe pushing trolley (4) adjacent to the mobile concrete pumping machine (1) through two parallel second dowel bars (404).
3. The movable pump pipe concrete pouring system for the ballastless track integral track bed according to claim 1 or 2, wherein the movable pump pipe concrete pouring system is characterized in that: the plurality of pump pipe pushing trolleys (4) are equidistantly distributed at the bottom of the pump pipe (2) between the mobile concrete pumping machine (1) and the mobile concrete pouring device (3), and the distance between two adjacent pump pipe pushing trolleys (4) is 5-8 m.
4. The movable pump pipe concrete pouring system for the ballastless track integral track bed according to claim 1 or 2, wherein the movable pump pipe concrete pouring system is characterized in that: the rotating mechanism (306) comprises a rotating motor (3060), a driving gear (3061) and a transmission gear (3062), wherein the rotating motor (3060) is arranged on the supporting platform (302), and an output shaft of the rotating motor extends out of the supporting platform upwards; the driving gear (3061) is arranged on an output shaft of the rotating motor (3060), the transmission gear (3062) is arranged at the bottom of the rotating platform (303) and meshed with the driving gear (3061), the rotating platform (303) is driven to rotate by the driving gear (3061) and the transmission gear (3062) under the control of the rotating motor (3060), a protective shell (307) is arranged outside the rotating motor (3060), a sleeve is arranged in the middle of the protective shell (307), and the pump pipe (2) penetrates out of the sleeve and is in rotary sealing connection with a concrete discharge hole on the rotating platform (303); and a distribution box (315) is arranged on the rotary platform (303), and the power is supplied to the rotary motor (3060) through the distribution box (315).
5. The movable pump pipe concrete pouring system for the ballastless track integral track bed according to claim 1 or 2, wherein the movable pump pipe concrete pouring system is characterized in that: the pump pipe (2) is in rotary sealing connection with the rotary platform (303) through a rotary sleeve assembly, the rotary sleeve assembly comprises a rotary sleeve (308) fixedly installed in a concrete discharging hole in the middle of the rotary platform (303) and a fixed sleeve (309) fixedly arranged on the supporting platform (302), and the upper end of the rotary sleeve (308) extends out of the rotary platform (303) and is in sealing connection with a feed inlet of the concrete pouring elbow (304) through a connecting flange plate; the lower end of the fixed sleeve (309) is in sealing butt joint with the pump pipe (2), the upper end of the fixed sleeve is provided with a rotary groove (310), and the lower end of the rotary sleeve (308) is inserted into the rotary groove (310) of the fixed sleeve (309) and is in rotary connection with the rotary groove (310) through a rolling bearing (311).
6. The movable pump pipe concrete pouring system for the ballastless track integral track bed according to claim 1 or 2, wherein the movable pump pipe concrete pouring system is characterized in that: the width of the walking chassis (300) is larger than the distance between two steel rails (5) of the ballastless track and smaller than the length of a sleeper (6) of the ballastless track, and chassis walking wheels (305) at the bottom of the walking chassis (300) are arranged on the two steel rails (5) of the ballastless track in the use process and walk along the two steel rails (5); the support frame (301) is composed of four main support steel frames and a plurality of transverse support frames, the four main support steel frames are obliquely arranged from bottom to top along the periphery to the middle, the support platform (302) is a circular platform, and the support platform (302) is welded at the top ends of the four main support steel frames.
7. The movable pump pipe concrete pouring system for the ballastless track integral ballast bed of claim 4, wherein the movable pump pipe concrete pouring system is characterized in that: the rotary platform (303) consists of a circular platform in the middle and strip-shaped platforms symmetrically arranged on two sides of the circular platform, and the two strip-shaped platforms are on the same straight line; the concrete pouring elbow (304) is an elbow structure which is formed by splicing one or two or more ninety-degree elbows according to any angle and extends out of the walking chassis (300), and a concrete pouring hose installation joint (312) is arranged at a discharge hole of the concrete pouring elbow (304); the concrete pouring bent pipe (304) arranged on the upper part of the rotary platform (303) is parallel to one side of the strip-shaped platform and is connected with the strip-shaped platform through a supporting piece (316), a traction steel wire (317) is arranged between the transverse bent pipe and the vertical bent pipe, and the distribution box (315) is arranged on the other side of the rotary platform (303) and is provided with a tool box (318).
8. The movable pump pipe concrete pouring system for the ballastless track integral track bed according to claim 1 or 2, wherein the movable pump pipe concrete pouring system is characterized in that: the movable platform (100) is a square platform, platform travelling wheels (102) are respectively arranged at the four corners of the bottom of the movable platform (100), the width of the movable platform (100) is larger than the distance between two steel rails (5) of the ballastless track and smaller than the length of a sleeper (6) of the ballastless track, and the platform travelling wheels (102) at the bottom of the movable platform (100) are arranged on the two steel rails (5) of the ballastless track in the use process and travel along the two steel rails (5).
9. The movable pump pipe concrete pouring system for the ballastless track integral track bed according to claim 1 or 2, wherein the movable pump pipe concrete pouring system is characterized in that: the pump pipe support frame (400) is made of channel steel, and the length of the pump pipe support frame is larger than the distance between two steel rails (5) of the ballastless track and smaller than the length of a sleeper (6) of the ballastless track; the pump pipe pushing travelling wheels (401) are fixedly arranged at the bottom of the pump pipe supporting frame (400) through angle steel supporting frames (405), and the two pump pipe pushing travelling wheels (401) at the bottom of the pump pipe supporting frame (400) are respectively arranged on two steel rails (5) of the ballastless track and travel along the two steel rails (5) in the use process; the pump pipe fixing piece (402) is a U-shaped clamping ring and is arranged in the middle of the pump pipe supporting frame (400).
10. The movable pump pipe concrete pouring system for the ballastless track integral track bed of claim 2, wherein the movable pump pipe concrete pouring system is characterized in that: two ends of the first dowel bar (403) are respectively connected with the walking underframe (300) and a pump pipe pushing trolley (4) adjacent to the movable concrete pouring device (3) in a hinged manner; two ends of the second dowel bar (404) are respectively connected with the mobile platform (100) and the pump pipe pushing trolley (4) adjacent to the mobile concrete pumping machine (1) in a hinged manner.
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| CN112144876B (en) * | 2020-08-29 | 2021-12-21 | 大昌建设集团有限公司 | Concrete low-loss construction process |
| CN112324143A (en) * | 2020-11-14 | 2021-02-05 | 深圳市罗湖建筑安装工程有限公司 | Concrete pouring construction equipment and method |
| CN114775534A (en) * | 2022-05-26 | 2022-07-22 | 中国科学院生态环境研究中心 | River course slope protection equipment for water ecological restoration and slope protection method thereof |
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