CN111663515A - Roadbed repressing device for railway roadbed construction and implementation method thereof - Google Patents
Roadbed repressing device for railway roadbed construction and implementation method thereof Download PDFInfo
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- CN111663515A CN111663515A CN202010523373.2A CN202010523373A CN111663515A CN 111663515 A CN111663515 A CN 111663515A CN 202010523373 A CN202010523373 A CN 202010523373A CN 111663515 A CN111663515 A CN 111663515A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
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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
- E01B2/00—General structure of permanent way
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Agronomy & Crop Science (AREA)
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Abstract
The invention discloses a roadbed repressing device for railway roadbed construction and an implementation method thereof, the roadbed repressing device comprises a machine body, a driving box, a cab, a driving wheel and a compacting wheel, the roadbed repressing device starts a driving motor, the driving motor drives a driving shaft to rotate, the driving shaft rotates to drive a driven shaft to descend, the driven shaft descends through a connecting plate to drive a limiting column to descend in a hollow frame body, the driven shaft descends to drive an upper column body to descend, the upper column body drives an outer frame body to depress, an inner movable column ascends in the inner frame body, an outer plate is depressed, a first spring compresses to buffer the depressing acting force, the depressing force is more moderate, the inner frame body depresses a connecting rod through a bearing plate, the connecting rod depresses an inner frame seat through a cross rod, a second spring compresses to increase the compacting acting force of a compacting outer frame on a roadbed, the device can repressurize and regulate the pressure simultaneously, the flatness of the compacted pavement is maintained.
Description
Technical Field
The invention relates to the technical field of railway roadbed construction, in particular to a roadbed repressing device for railway roadbed construction and an implementation method thereof.
Background
The civil engineering facilities on the railway also refer to the technologies applied in the survey design, construction, maintenance and reconstruction at each stage of railway construction. Railroad work initially includes civil, rail, roadbed, bridge, tunnel, yard, mechanical locomotive, vehicle and signal related works associated with railroads. With the development of construction and further division of technology, some of the projects are gradually formed into independent disciplines, such as locomotive projects, vehicle projects, signal projects; other projects gradually fall under their own subjects, such as bridge projects and tunnel projects. The term railroad engineering has only narrowly meant: railway route selection, railway tracks, roadbed, railway station yard and hub.
A roadbed in a railway is a foundation of a track or a road surface, and is an earth structure formed by excavation or filling. The roadbed mainly has the functions of providing necessary conditions for track or road surface laying and train or traveling operation, bearing static load and dynamic load of track and locomotive vehicle or road surface and traffic load, and transmitting and diffusing the load to the deep part of the foundation. On the longitudinal section, the roadbed must ensure the required elevation of the line; on the plane, the roadbed, the bridge and the tunnel are connected to form a complete through line. In civil engineering, the subgrade occupies an important position in the aspects of construction quantity, floor area and investment.
In the work progress to the railway roadbed, need carry out the repressing to the road bed, but at the in-process discovery that carries out the repressing to current road bed, when carrying out the repressing to different road surfaces, according to the difference of geology, the dynamics that need the repressing is also different, but the dynamics of the unable convenient regulation compaction of current repressing device.
Disclosure of Invention
The invention aims to provide a roadbed repressing device for railway roadbed construction and an implementation method thereof, wherein a driving device in a starting machine body drives a driving wheel, the driving wheel drives a compaction outer frame to compact a roadbed, when the roadbed is uneven, the compaction outer frame needs to be pressed downwards to increase the force, a driving motor is started, the driving motor drives a driving shaft to rotate, inclined threads on a driven shaft and inclined threads on the driving shaft are meshed with each other, the driving shaft rotates to drive the driven shaft to descend, the driven shaft descends to drive a limiting column to descend in the hollow frame body through a connecting plate, the descending of the driven shaft drives an upper column body to descend, the upper column body drives an outer frame body to press downwards, an inner movable column ascends in the inner frame body, an outer plate is pressed downwards, a first spring is compressed to buffer the acting force of pressing downwards, the pressing force is more moderate, the inner frame body presses a connecting rod through a bearing plate simultaneously, the connecting rod pushes down the inner frame seat through the cross rod, the second spring compresses, the compaction acting force of the compaction outer frame to the roadbed is increased, the device can adjust the pressure while carrying out repressing, and the smoothness of the compacted pavement is kept so as to solve the problem provided in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a roadbed repressing device for railway roadbed construction comprises a machine body, a driving box, a cab, driving wheels and compacting wheels, wherein the driving box is arranged at the top end of the machine body, the cab is arranged behind the driving box, the driving wheels are arranged at the bottom of the machine body, and the compacting wheels are arranged between the two driving wheels;
the drive box includes box, driving motor, driving shaft, bearing frame, driven shaft, posting and spliced pole, the inside of box is equipped with driving motor, driving motor's one end is connected with the driving shaft, driving motor's one end movable mounting is kept away from in the bearing frame to the driving shaft, the outside of driving shaft is equipped with the driven shaft, the last oblique screw thread of driven shaft and the mutual interlock of the last oblique screw thread of driving shaft, the top of driven shaft is equipped with the posting, the bottom fixedly connected with spliced pole of driven shaft.
Preferably, the locating frame comprises a hollow frame body, a limiting column and a connecting plate, the hollow frame body is fixedly installed on the box body, the limiting column is arranged inside the hollow frame body, the bottom end of the limiting column is fixedly connected with the connecting plate, and the bottom end of the connecting plate is fixedly connected with the driven shaft.
Preferably, the spliced pole includes cylinder, outer frame and stable frame, the bottom fixedly connected with outer frame of cylinder, the inside of outer frame is equipped with stable frame.
Preferably, the stabilizing frame comprises an inner frame body, an inner movable column, an externally-arranged plate, a first spring, a bearing plate and a connecting rod, wherein the top end of the inner frame body is fixedly arranged on the outer frame body, the inner movable column is arranged inside the inner frame body, the externally-arranged plate is fixedly connected to the bottom end of the inner frame body, the inner movable column penetrates through the externally-arranged plate, the first spring is wound on the outer side of the inner movable column, the top end of the first spring is fixedly connected to the externally-arranged plate, the bottom end of the first spring is fixedly arranged on the bearing plate, and the connecting rod is fixedly connected to the bottom end of the bearing plate.
Preferably, the compaction wheel includes horizontal pole, interior cushion socket, compaction frame and interior gyro wheel, the both ends of horizontal pole all with connecting rod fixed connection, two cushion socket in the fixedly connected with between the horizontal pole, the outside of interior cushion socket is equipped with the compaction frame, movable mounting has interior gyro wheel on the inner wall of compaction frame.
Preferably, the inner buffer seat comprises an inner frame seat, a second spring and a mounting seat, the second spring is fixedly connected to the inner wall of the inner frame seat, one end, far away from the inner frame seat, of the second spring is fixedly connected to the mounting seat, and the mounting seat is fixedly mounted on the cross rod.
The invention provides another technical scheme, and an implementation method of a roadbed re-pressing device for railway roadbed construction comprises the following steps:
the method comprises the following steps: starting a driving device in the machine body to drive a driving wheel, wherein the driving wheel drives the compaction outer frame to compact the road base, and when the road surface is uneven, the compaction outer frame needs to be pressed downwards to increase the force;
step two: starting a driving motor, driving the driving shaft to rotate by the driving motor, driving the driven shaft to descend by the rotation of the driving shaft through the mutual engagement of the inclined threads on the driven shaft and the inclined threads on the driving shaft, and driving the limiting column to descend in the hollow frame body by the descending of the driven shaft through the connecting plate;
step three: meanwhile, the descending of the driven shaft drives the upper column body to descend, the upper column body drives the outer frame body to press down, the inner movable column rises in the inner frame body, the outer plate is pressed down, the first spring is compressed, the pressing-down acting force is buffered, and the pressing-down force is more moderate;
step four: the connecting rod is pushed down through accepting the board simultaneously to interior framework, and the connecting rod pushes down through the horizontal pole to the inner frame seat, and the compression takes place for the second spring, increases the compaction effort of compaction frame to the road bed.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a roadbed repressing device for railway roadbed construction and an implementation method thereof, wherein a driving device in a starting machine body drives a driving wheel, the driving wheel drives a compaction outer frame to compact a roadbed, when the roadbed is rough, the compaction outer frame needs to be pressed downwards to increase the force, a driving motor is started, the driving motor drives a driving shaft to rotate, inclined threads on the driven shaft and inclined threads on the driving shaft are meshed with each other, the driving shaft drives a driven shaft to descend, the driven shaft descends to drive a limiting column to descend in the hollow frame body through a connecting plate, the descending of the driven shaft drives an upper column body to descend, the upper column body drives an outer frame body to press downwards, an inner movable column ascends in the inner frame body, an outer plate is pressed downwards, a first spring is compressed to buffer the acting force of the pressing downwards, the pressing force is more moderate, the inner frame body presses a connecting rod through a bearing plate simultaneously, the connecting rod pushes down the inner frame seat through the cross rod, the second spring compresses, the compaction acting force of the compaction outer frame to the roadbed is increased, and the device can adjust the pressure while carrying out repressing and keep the smoothness of a compacted pavement.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of a positioning frame of the present invention;
FIG. 4 is a cross-sectional view of the connecting column of the present invention;
FIG. 5 is a schematic structural diagram of a stabilizing frame according to the present invention;
FIG. 6 is a cross-sectional view of the compaction wheel of the invention;
FIG. 7 is a cross-sectional view of an inner cushion socket of the present invention.
In the figure: 1. a body; 2. a drive box; 21. a box body; 22. a drive motor; 23. a drive shaft; 24. a bearing seat; 25. a driven shaft; 26. a positioning frame; 261. a hollow frame body; 262. a limiting column; 263. a connecting plate; 27. connecting columns; 271. an upper column; 272. an outer frame body; 273. a stabilizing frame; 2731. an inner frame body; 2732. an inner movable column; 2733. an external plate; 2734. a first spring; 2735. a bearing plate; 2736. a connecting rod; 3. a cab; 4. a drive wheel; 5. compacting wheels; 51. a cross bar; 52. an inner cushion seat; 521. an inner frame seat; 522. a second spring; 523. a mounting seat; 53. compacting the outer frame; 54. and an inner roller.
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.
Referring to fig. 1-2, a roadbed re-pressing device for railway roadbed construction comprises a machine body 1, a driving box 2, a cab 3, driving wheels 4 and a pressing wheel 5, wherein the driving box 2 is arranged at the top end of the machine body 1, the cab 3 is arranged behind the driving box 2, the driving wheels 4 are arranged at the bottom of the machine body 1, the pressing wheel 5 is arranged between the two driving wheels 4, the driving box 2 comprises a box body 21 and a driving motor 22, the box body 21 is internally provided with a driving motor 22, one end of the driving motor 22 is connected with the driving shaft 23, one end, far away from the driving motor 22, of the driving shaft 23 is movably installed in the bearing seat 24, the driven shaft 25 is arranged on the outer side of the driving shaft 23, oblique threads on the driven shaft 25 are meshed with oblique threads on the driving shaft 23, the top end of the driven shaft 25 is provided with the positioning frame 26, and the bottom end of the driven shaft 25 is fixedly connected with the connecting column 27.
Referring to fig. 3-5, the positioning frame 26 includes a hollow frame 261, a limiting post 262 and a connecting plate 263, the hollow frame 261 is fixedly installed on the box 21, the limiting post 262 is disposed inside the hollow frame 261, the bottom end of the limiting post 262 is fixedly connected with the connecting plate 263, the bottom end of the connecting plate 263 is fixedly connected with the driven shaft 25, the connecting post 27 includes an upper cylinder 271, an outer frame 272 and a stabilizing frame 273, the bottom end of the upper cylinder 271 is fixedly connected with the outer frame 272, the stabilizing frame 272 is internally provided with the stabilizing frame 273, the stabilizing frame 273 includes an inner frame 2731, an inner movable post 2732, an outer plate 2733, a first spring 2734, a bearing plate 2735 and a connecting rod 2736, the top end of the inner frame 2731 is fixedly installed on the outer frame 272, the inner movable post 2732 is disposed inside the inner frame 2731, the bottom end of the inner frame 2731 is fixedly connected with the outer plate 2733, the inner movable post 2732 penetrates through the outer plate 2733, the first spring, the top end of the first spring 2734 is fixedly connected to the external plate 2733, the bottom end of the first spring 2734 is fixedly mounted on the receiving plate 2735, and the bottom end of the receiving plate 2735 is fixedly connected to the connecting rod 2736.
Referring to fig. 6-7, the compacting wheel 5 includes a cross bar 51, an inner buffer seat 52, a compacting outer frame 53 and an inner roller 54, both ends of the cross bar 51 are fixedly connected to a connecting rod 2736, the inner buffer seat 52 is fixedly connected between the two cross bars 51, the compacting outer frame 53 is disposed on the outer side of the inner buffer seat 52, the inner roller 54 is movably mounted on the inner wall of the compacting outer frame 53, the inner buffer seat 52 includes an inner frame seat 521, a second spring 522 and a mounting seat 523, the inner wall of the inner frame seat 521 is fixedly connected to the second spring 522, one end of the second spring 522 away from the inner frame seat 521 is fixedly connected to the mounting seat 523, and the mounting seat 523 is fixedly mounted on the cross bar 51.
In order to better show the implementation process of the roadbed re-pressing device for railway roadbed construction, the embodiment provides an implementation method of the roadbed re-pressing device for railway roadbed construction, which comprises the following steps:
the method comprises the following steps: starting a driving device in the machine body 1 to drive a driving wheel 4, wherein the driving wheel 4 drives a compaction outer frame 53 to compact the road base, and when the road surface is uneven, the compaction outer frame 53 needs to be pressed downwards to increase the force;
step two: the driving motor 22 is started, the driving motor 22 drives the driving shaft 23 to rotate, the inclined threads on the driven shaft 25 are meshed with the inclined threads on the driving shaft 23, the driving shaft 23 rotates to drive the driven shaft 25 to descend, and the descending of the driven shaft 25 drives the limiting column 262 to descend in the hollow frame 261 through the connecting plate 263;
step three: meanwhile, the descending of the driven shaft 25 drives the upper column 271 to descend, the upper column 271 drives the outer frame 272 to press down, the inner movable column 2732 ascends in the inner frame 2731, the outer plate 2733 is pressed down, the first spring 2734 is compressed, the pressing action force is buffered, and the pressing force is more moderate;
step four: inner frame 2731 pushes down connecting rod 2736 through receiving plate 2735 simultaneously, connecting rod 2736 pushes down inner frame seat 521 through horizontal pole 51, and second spring 522 compresses, increases the compaction effort of compaction frame 53 to the road bed.
The working principle of the invention is as follows: the driving device in the machine body 1 is started to drive the driving wheel 4, the driving wheel 4 drives the compaction outer frame 53 to compact the road base, when the road surface is uneven, the compaction outer frame 53 needs to be pressed down to increase the force, the driving motor 22 is started, the driving motor 22 drives the driving shaft 23 to rotate, the inclined threads on the driven shaft 25 are meshed with the inclined threads on the driving shaft 23, the driving shaft 23 rotates to drive the driven shaft 25 to descend, the driven shaft 25 descends through the connecting plate 263 to drive the limit column 262 to descend in the hollow frame 261, meanwhile, the descending of the driven shaft 25 drives the upper column 271 to descend, the upper column 271 drives the outer frame 272 to press down, the inner movable column 2732 ascends in the inner frame 2731, the external plate 2733 is pressed down, the first spring 2734 is compressed to buffer the downward pressing force, the downward pressure is more moderate, the inner frame 2731 simultaneously presses down the connecting rod 2736 through the bearing plate 2735, the connecting rod 2736 presses down the inner frame base 521 through the cross rod 51, and the second spring 522 is compressed, so that the compaction acting force of the compaction outer frame 53 on the roadbed is increased.
In summary, the following steps: the driving device in the machine body 1 is started to drive the driving wheel 4, the driving wheel 4 drives the compaction outer frame 53 to compact the road base, when the road surface is uneven, the compaction outer frame 53 needs to be pressed down to increase the force, the driving motor 22 is started, the driving motor 22 drives the driving shaft 23 to rotate, the inclined threads on the driven shaft 25 are meshed with the inclined threads on the driving shaft 23, the driving shaft 23 rotates to drive the driven shaft 25 to descend, the driven shaft 25 descends through the connecting plate 263 to drive the limit column 262 to descend in the hollow frame 261, meanwhile, the descending of the driven shaft 25 drives the upper column 271 to descend, the upper column 271 drives the outer frame 272 to press down, the inner movable column 2732 ascends in the inner frame 2731, the external plate 2733 is pressed down, the first spring 2734 is compressed to buffer the downward pressing force, the downward pressure is more moderate, the inner frame 2731 simultaneously presses down the connecting rod 2736 through the bearing plate 2735, the connecting rod 2736 presses down the inner frame seat 521 through the cross rod 51, the second spring 522 is compressed, the compaction acting force of the compaction outer frame 53 on the roadbed is increased, and the device can adjust the pressure while carrying out re-compaction, so that the flatness of a compacted road surface is kept.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (7)
1. A roadbed repressing device for railway roadbed construction comprises a machine body (1), a driving box (2), a cab (3), driving wheels (4) and compacting wheels (5), and is characterized in that the driving box (2) is arranged at the top end of the machine body (1), the cab (3) is arranged behind the driving box (2), the driving wheels (4) are arranged at the bottom of the machine body (1), and the compacting wheels (5) are arranged between the two driving wheels (4);
drive case (2) include box (21), driving motor (22), driving shaft (23), bearing frame (24), driven shaft (25), posting (26) and spliced pole (27), the inside of box (21) is equipped with driving motor (22), the one end of driving motor (22) is connected with driving shaft (23), the one end movable mounting that driving motor (22) were kept away from in bearing frame (24) in driving shaft (23), the outside of driving shaft (23) is equipped with driven shaft (25), the oblique screw thread on driven shaft (25) and the mutual interlock of oblique screw thread on driving shaft (23), the top of driven shaft (25) is equipped with posting (26), the bottom fixedly connected with spliced pole (27) of driven shaft (25).
2. The roadbed repressurization device for the railway roadbed construction according to claim 1, wherein the positioning frame (26) comprises a hollow frame body (261), a limiting column (262) and a connecting plate (263), the hollow frame body (261) is fixedly installed on the box body (21), the limiting column (262) is arranged inside the hollow frame body (261), the connecting plate (263) is fixedly connected to the bottom end of the limiting column (262), and the driven shaft (25) is fixedly connected to the bottom end of the connecting plate (263).
3. A roadbed repressurization device for railway roadbed construction according to claim 1, characterized in that the connection column (27) comprises an upper column (271), an outer frame (272) and a stabilization frame (273), the outer frame (272) is fixedly connected to the bottom end of the upper column (271), and the stabilization frame (273) is arranged inside the outer frame (272).
4. A roadbed re-pressing device for railway roadbed construction, which is characterized in that, the stabilizing frame (273) comprises an inner frame body (2731), an inner movable column (2732), an external plate (2733), a first spring (2734), a bearing plate (2735) and a connecting rod (2736), the top end of the inner frame body (2731) is fixedly arranged on the outer frame body (272), an inner movable column (2732) is arranged inside the inner frame body (2731), the bottom end of the inner frame body (2731) is fixedly connected with an external plate (2733), the inner movable column (2732) penetrates through the external plate (2733), a first spring (2734) is wound on the outer side of the inner movable column (2732), the top end of the first spring (2734) is fixedly connected to the external plate (2733), the bottom end of the first spring (2734) is fixedly installed on the bearing plate (2735), and the bottom end of the bearing plate (2735) is fixedly connected with a connecting rod (2736).
5. The roadbed repressing device for railway roadbed construction as claimed in claim 1, wherein the compacting wheel (5) comprises a cross bar (51), an inner buffer seat (52), a compacting outer frame (53) and inner rollers (54), both ends of the cross bar (51) are fixedly connected with a connecting rod (2736), the inner buffer seat (52) is fixedly connected between the two cross bars (51), the compacting outer frame (53) is arranged on the outer side of the inner buffer seat (52), and the inner rollers (54) are movably mounted on the inner wall of the compacting outer frame (53).
6. A roadbed re-pressing device for railway roadbed construction according to claim 5, characterized in that the inner buffer seat (52) comprises an inner frame seat (521), a second spring (522) and a mounting seat (523), the second spring (522) is fixedly connected to the inner wall of the inner frame seat (521), one end of the second spring (522) far away from the inner frame seat (521) is fixedly connected to the mounting seat (523), and the mounting seat (523) is fixedly mounted on the cross bar (51).
7. A method for implementing a roadbed re-pressing device for railway roadbed construction according to the claim 1-6, characterized by comprising the following steps:
s1: starting a driving device in the machine body (1) to drive a driving wheel (4), wherein the driving wheel (4) drives a compaction outer frame (53) to compact the road base, and when the road surface is uneven, the compaction outer frame (53) needs to be pressed downwards to increase the force;
s2: starting a driving motor (22), wherein the driving motor (22) drives a driving shaft (23) to rotate, oblique threads on a driven shaft (25) are meshed with oblique threads on the driving shaft (23), the driving shaft (23) rotates to drive the driven shaft (25) to descend, and the driven shaft (25) descends to drive a limiting column (262) to descend in the hollow frame body (261) through a connecting plate (263);
s3: meanwhile, the descending of the driven shaft (25) drives the upper column (271) to descend, the upper column (271) drives the outer frame (272) to press down, the inner movable column (2732) ascends in the inner frame (2731), the outer plate (2733) is pressed down, the first spring (2734) is compressed, the buffering of the pressing-down acting force is realized, and the pressing-down force is more moderate;
s4: interior framework (2731) pushes down connecting rod (2736) through accepting board (2735) simultaneously, and connecting rod (2736) pushes down inner frame seat (521) through horizontal pole (51), and second spring (522) take place the compression, increase the compaction effort of compaction frame (53) to the road bed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010523373.2A CN111663515A (en) | 2020-06-10 | 2020-06-10 | Roadbed repressing device for railway roadbed construction and implementation method thereof |
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| CN202010523373.2A CN111663515A (en) | 2020-06-10 | 2020-06-10 | Roadbed repressing device for railway roadbed construction and implementation method thereof |
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| CN112647484A (en) * | 2020-12-15 | 2021-04-13 | 陈云涛 | Intelligent foundation compaction equipment capable of automatically adjusting compaction force |
| CN114855557A (en) * | 2022-06-23 | 2022-08-05 | 张传永 | Highway construction road bed road surface compaction device |
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|---|---|---|---|---|
| CN112647484A (en) * | 2020-12-15 | 2021-04-13 | 陈云涛 | Intelligent foundation compaction equipment capable of automatically adjusting compaction force |
| CN114855557A (en) * | 2022-06-23 | 2022-08-05 | 张传永 | Highway construction road bed road surface compaction device |
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Application publication date: 20200915 |
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