CN108532383B - Fine adjustment trolley for plate ballast bed - Google Patents
Fine adjustment trolley for plate ballast bed Download PDFInfo
- Publication number
- CN108532383B CN108532383B CN201810248085.3A CN201810248085A CN108532383B CN 108532383 B CN108532383 B CN 108532383B CN 201810248085 A CN201810248085 A CN 201810248085A CN 108532383 B CN108532383 B CN 108532383B
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- plate
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- mounting groove
- telescopic
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- 238000005192 partition Methods 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 238000007667 floating Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2203/00—Devices for working the railway-superstructure
- E01B2203/14—Way of locomotion or support
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Railway Tracks (AREA)
Abstract
The invention relates to a fine adjustment trolley for a plate ballast bed, which comprises a lower trolley body (a), wherein the lower trolley body (a) is connected with a movable plate (b) in a scattered manner, and is characterized in that: a group of jacking oil cylinders (4 a), a group of wheels (3 a) and a group of telescopic oil cylinders (5 d) are arranged in the lower vehicle body (a), a group of partition plates (2 a) are further arranged in the lower vehicle body (a), corresponding wheel mounting grooves (3), jacking oil cylinder mounting grooves (4), telescopic oil cylinder mounting grooves (5), driven plate mounting grooves (6) and a cable access groove (7) are formed in a partition mode through the partition plates (2 a), a group of jacking oil cylinders (12 a) are uniformly distributed on the driven plate (b), and a circle of wall plates (9) corresponding to the lower vehicle body (a) are further arranged on the driven plate (b). The invention has simple structure, convenient manufacture and high structural strength of the lower vehicle body, and all parts in the lower vehicle body can not interfere with each other when working, thereby avoiding the situation that sundries are clamped between the driven plate and the lower vehicle body.
Description
Technical field:
The invention relates to the field of track traffic construction equipment, in particular to a fine adjustment trolley for a plate-type ballast bed.
The background technology is as follows:
in construction of a floating slab track, a prefabricated slab track bed is required to be spliced and assembled into the floating track bed. At present, the splicing of the prefabricated slab ballast mainly depends on the placement of hoisting equipment, and is matched with manual work to carry out accurate position adjustment, because the weight of the prefabricated slab ballast is larger, the inertia is large, the shaking amplitude is larger, the placement error of the hoisting equipment is larger, the manual adjustment is time-consuming and labor-consuming, the prefabricated slab ballast is often required to be hoisted repeatedly to fall down, and especially after the short prefabricated slab ballast is adopted, the splicing frequency in construction is greatly increased, so that a new bottleneck for restricting the construction speed is formed, and meanwhile, a lot of manpower and material resources are consumed, and the construction cost is increased.
Therefore, the company applied for a pallet truck with the application number 201610418277.5 for laying a prefabricated slab track bed, but when the pallet truck is used, due to complex construction site environment, more sundries are often contained in the space between the pallet truck and the truck body, so that the angle of the pallet truck cannot be accurately adjusted or the pallet truck can be directly clamped to prevent the pallet truck from working, and even the movable components in the pallet truck are directly damaged. In addition, the pallet truck for laying the prefabricated slab ballast bed has the problems that the internal space of the truck body is small, and all movable parts are easy to interfere with each other during working.
The invention comprises the following steps:
The invention aims to overcome the defects in the prior art and provides a fine adjustment trolley for a plate ballast bed.
The invention provides the following technical scheme:
the utility model provides a fine tuning dolly of plate ballast bed, it includes the automobile body down, is connected with fly leaf, its characterized in that in the automobile body loose down: the lower vehicle body comprises a bottom plate, a circle of coaming is arranged on the bottom plate, a group of partition plates are arranged on the inner side of the coaming, and a group of wheel mounting grooves, a group of jacking oil cylinder mounting grooves, a group of telescopic oil cylinder mounting grooves, a driven plate mounting groove and a cable access groove are formed in the inner side of the coaming through the partition plates;
Wheels are arranged in each wheel mounting groove, a jacking oil cylinder is arranged in each jacking oil cylinder mounting groove, a telescopic oil cylinder fixing pin is arranged in each telescopic oil cylinder mounting groove, a telescopic oil cylinder is hinged on the telescopic oil cylinder fixing pin, a first opening is further arranged on the telescopic oil cylinder mounting groove on one side of the telescopic oil cylinder fixing pin, a pin hole which corresponds to the first opening is arranged at the extending end of the telescopic oil cylinder, a driven plate is arranged in the driven plate mounting groove, a protruding connecting rod is arranged on the driven plate, at least one second opening is arranged on the bottom of the driven plate mounting groove, and the connecting rod extends out of the second opening;
The movable plate comprises a plate body, a circle of wall plates corresponding to the outer shape of the plate body are arranged on the plate surface on one side of the plate body, a group of through holes are uniformly distributed on the plate body on the inner side of the wall plates, a group of lifting oil cylinder seats which are coaxially distributed are arranged on the plate body on one side of the through holes, lifting oil cylinders are uniformly arranged on the lifting oil cylinder seats, lifting plates matched with the output shafts of the lifting oil cylinders are arranged in the through holes, a group of connecting pins are uniformly distributed on the plate body in the wall plates, the connecting pins penetrate through corresponding first holes and then are connected with pin holes on the extending ends of corresponding telescopic oil cylinders to be matched with the connecting rods, and at least one yielding notch corresponding to the cable access grooves is arranged on the wall plates.
On the basis of the technical scheme, the following further technical scheme is also available:
at least one notch is arranged on the groove walls of the jacking oil cylinder mounting groove, the telescopic oil cylinder mounting groove, the driven plate mounting groove and the cable access groove.
And a connecting seat which is correspondingly matched with the drag chain is arranged at the outer side of the cable access groove.
The upper end of the coaming is provided with a cover plate corresponding to the shape of the bottom plate, and a group of relief notches corresponding to the wheel mounting grooves and the jacking cylinder mounting grooves are uniformly distributed on the cover plate.
The invention has the advantages that:
The invention has simple structure and convenient use, so that sundries can not be clamped in the gap between the driven plate and the lower vehicle body, and the working efficiency of the plate-type ballast bed plate transfer vehicle is effectively ensured. In addition, because the lifting oil cylinder is arranged on the driven plate, the space in the lower vehicle body is greatly saved, so that each part in the lower vehicle body works more smoothly, each part on the vehicle underframe is arranged in each mounting groove, the problem of mutual interference during the working of the parts is avoided, and the maintenance difficulty of each part in the lower vehicle body is also reduced.
Description of the drawings:
fig. 1 is a schematic view of the structure of a lower vehicle body in the present invention;
FIG. 2 is a schematic view of the structure of the movable plate in the present invention;
FIG. 3 is a schematic view of the structure of the top of the invention;
fig. 4 is a schematic view of the structure of the inventive vehicle bottom.
The specific embodiment is as follows:
As shown in figures 1-4, the fine adjustment trolley for the slab track bed comprises a lower trolley body a, wherein a driven plate b is connected to the lower trolley body a in a scattered manner. The lower car body a comprises a bottom plate 1, the bottom plate 1 is composed of a rectangular main body a1 and rectangular extension parts a2 which extend outwards on two side width edges of the rectangular main body a1, and the connecting corners of the rectangular main body a1 and the extension parts a2 are excessive through round corners a 3.
A circle of coaming 2 is arranged on the upper surface of the bottom plate 1 along the thickness end surface of the bottom plate 1, and the coaming 2 is perpendicular to the upper surface of the bottom plate 1. A longitudinal partition plate 2b is arranged at the junction of a rectangular extension part a2 of a bottom plate 1 at the inner side of the coaming plate 2 and a rectangular main body a1, and a cable access groove 7 and a groove body 7a symmetrically distributed with the cable access groove are divided by the longitudinal partition plate 2b and the coaming plate 2.
Four wheel mounting grooves 3, four jacking cylinder mounting grooves 4, four telescopic cylinder mounting grooves 5 and a driven plate mounting groove 6 are divided by a group of baffle plates 2a which are mutually connected in the range of a rectangular main body a1 on the inner side of the coaming plate 2.
The wheel mounting grooves 3 are respectively distributed at four corners of the rectangular main body a1, the outer walls of two sides connected with the wheel mounting grooves 3 are formed by part of the coaming 2, and the inner walls of the other two sides are formed by the partition plates 2a, so that the wheel mounting grooves 3 are of square structures, each wheel mounting groove 3 is provided with a wheel 3a, and part of the wheel surface of each wheel 3a extends out of the top end of the coaming 2.
A square jacking oil cylinder mounting groove 4 is distributed on one side of each wheel mounting groove 3, one side groove wall of each jacking oil cylinder mounting groove 4 is a part of the coaming 2, the two jacking oil cylinder mounting grooves 4 distributed along the width direction of the bottom plate 1 are symmetrical with each other along the width central line of the bottom plate 1, and the two jacking oil cylinder mounting grooves 4 distributed along the length direction of the bottom plate 1 are symmetrical with each other along the length central line of the bottom plate 1.
A jacking cylinder 4a is provided in each jacking cylinder mounting groove 4. The output shaft of the jacking cylinder 4a is mutually perpendicular to the bottom plate 1, a round supporting seat is arranged at the output end, and a rubber pad 4b is also arranged on the supporting seat. When the lower car body moves to a proper position, the output end of the jacking cylinder stretches out of the rubber pad on the supporting leg to be in contact with the ground, and then the output shaft of the jacking cylinder continuously stretches out, so that the whole lower car body is jacked up, wheels leave the ground, and the integral stability of the fine adjustment trolley on the adjustment plate type ballast bed is ensured.
A rectangular telescopic oil cylinder mounting groove 5 is distributed on one side of each jacking oil cylinder mounting groove 4, and the groove wall on one side of each telescopic oil cylinder mounting groove 5 in the width direction is a part of the coaming 2. Two telescopic cylinder mounting grooves 5 distributed along one diagonal of the rectangular main body a1 are transversely distributed, and the other two telescopic cylinder mounting grooves 5 distributed along the other diagonal are longitudinally distributed. This makes the adjacent two telescopic cylinder mounting grooves 5 vertically distributed in the same horizontal plane, and the distance between the two telescopic cylinder mounting grooves 5 is also a certain distance, and a cable distribution groove 5c is formed at the distance through the partition plate 2 a.
The bottom plate 1 at the bottom of each telescopic oil cylinder installation groove 5 is provided with a vertical convex telescopic oil cylinder fixing pin 5a, the telescopic oil cylinder fixing pin 5a is hinged with a telescopic oil cylinder 5d, a first opening 5b is further arranged at a position spaced by a certain distance on one side of the telescopic oil cylinder fixing pin 5a, four corners of the first opening 5b are all fillets excessive, and a pin hole 5e corresponding to the first opening 5b is arranged at the extending end of the telescopic oil cylinder 5 d.
The driven plate mounting grooves 6 are arranged in the middle of the bottom plate 1 on the inner side of the coaming plate 2 and are longitudinally distributed, and two sides of the driven plate mounting grooves 6 are respectively adjacent to the two telescopic oil cylinder mounting grooves 5 and the one cable distribution groove 5 c. Two square second open holes 6d are arranged in the driven plate mounting groove 6 along the axis of the length direction, a certain interval is reserved between the two square second open holes 6d, and four corners of each square second open hole 6d are excessive in rounded corners. A driven plate 6a is arranged in the driven plate mounting groove 6, two convex connecting rods 6c are arranged on the driven plate 6a, and one ends of the connecting rods 6c are inserted into corresponding second holes 6d to extend out of the bottom plate 1.
A notch 8 is provided in the side wall formed by the partition plate 2a inside each jack cylinder mounting groove 4 so that the jack cylinder mounting groove 4 communicates with the adjacent telescopic cylinder mounting groove 5. On both sides of each telescopic cylinder mounting groove 5, a notch 8 is respectively arranged on the side wall formed by the partition plates 2a, wherein one notch enables the telescopic cylinder mounting groove 5 to be communicated with the adjacent driven plate mounting groove 6, and the other notch enables the telescopic cylinder mounting groove 5 to be communicated with the adjacent cable distribution groove 5 c.
On both sides of the middle part of the driven plate installation groove 6, a notch 8 communicated with the cable distribution grooves 5c on the left side and the right side is also arranged on the side wall formed by the partition plates 2a, and a notch 8 communicated with the adjacent cable access groove 7 is also arranged on one side of the cable distribution groove 5c on the right side and the side wall formed by the longitudinal partition plates 2 b. So that all jack cylinders and all telescoping cylinder control cables (not shown) can be connected and mated with cable connectors as described below by being introduced into the cable access channel through the notches in the bulkhead and the notches in the longitudinal bulkhead.
Two connecting seats 16 are arranged on the outer side of the coaming 2 on the outer side of the cable access groove 7, and a group of cable connectors communicated with the inside of the cable access groove 7 are further arranged on the coaming 2 between the two connecting seats 16. A cable access notch 7b is provided on each of the coaming plates 2 constituting the side walls on the other two sides of the cable access groove 7.
The coaming plate 2 is provided with a cover plate 17 which has the same appearance as the bottom plate 1, a group of abdication notches 17a corresponding to the wheel mounting grooves and the jacking cylinder mounting grooves are uniformly distributed on the cover plate 17 so that part of the wheel surface of the wheel can extend out of the cover plate, and a supporting seat at the output end of the jacking cylinder extends out of the cover plate under the action of the jacking cylinder, so that the wheel can drive the lower vehicle body to move, and the supporting feet can prop up the lower vehicle body.
The movable plate b comprises a plate body 10, a group of connecting pins 13 which are distributed corresponding to the first holes 5b are uniformly distributed on the plate body 10, and one end of each connecting pin 13 is inserted into the corresponding first hole 5b and then is connected and matched with a pin hole 5e on the extending end of a telescopic cylinder 5d in the telescopic cylinder mounting groove 5. The movable plate b is driven to rotate by the extension and retraction of the extension ends of different extension oil cylinders in the lower vehicle body.
A pair of link sockets 14 corresponding to the links 6c are further provided at the middle of the plate body 10, and the upper ends of the links 6c protruding from the second openings 6d are inserted into the corresponding link sockets 14. When the movable plate b rotates, the driven plate in the lower vehicle body is driven to move through the connecting rod, so that the rotating process of the movable plate b is more stable.
A ring-shaped lifting cylinder seat 12 is arranged on the movable plate b outside each round angle a3 of the lower vehicle body, a lifting cylinder 12a is arranged at the lower end of the lifting cylinder seat 12, and a control cable (not shown in the figure) of the lifting cylinder 12a is led into the cable access groove 7 through the cable access notch 7b and is communicated with the corresponding cable connector 11.
The upper end of the lifting oil cylinder seat 12 is provided with a through hole 11 penetrating through the plate body 10, the through hole 11 and the lifting oil cylinder seat 12 are coaxially distributed, the through hole 11 and the lifting oil cylinder seat 12 are mutually communicated, the lifting disc 11a is arranged in the through hole 11, and the upper end of an output shaft of the lifting oil cylinder 12a is connected with the bottom of the lifting disc 11 a. The lifting oil cylinder drives the lifting disc to lift the plate ballast bed placed on the plate body.
A circle of wall plates 9 corresponding to the shape of the plate body 10 are arranged on the plate surface on the outer side of the lifting cylinder seat 12, the wall plates 9 are perpendicular to the plate body 10, and the wall plates 9 are positioned on the outer side of the thickness end face of the lower vehicle body and are spaced a certain distance from the lower vehicle body. Because the wallboard shields the gap between the lower surface of the board body and the upper surface of the lower car body, the condition that sundries enter between the lower surface of the board body and the upper surface of the lower car body is effectively avoided.
The wall plate 9 is provided with a relief notch 17a corresponding to the cable insertion groove 7 and the groove body 7a. The cable connector 11 and the connection base 10 extend from the relief notch 17a, so as to be connected with a drag chain and a cable, which are not shown in the figure.
Claims (1)
1. The utility model provides a fine tuning dolly of plate ballast bed, it includes automobile body (a) down, is connected with fly leaf (b) on automobile body (a) down, its characterized in that: the lower vehicle body (a) comprises a bottom plate (1), a circle of coaming (2) is arranged on the bottom plate (1), a group of partition plates (2 a) are arranged on the inner side of the coaming (2), and a group of wheel mounting grooves (3), a group of jacking cylinder mounting grooves (4), a group of telescopic cylinder mounting grooves (5), a driven plate mounting groove (6) and a cable access groove (7) are formed in the inner side of the coaming (2) through the partition plates (2 a);
The wheel lifting device comprises wheels (3 a) arranged in each wheel mounting groove (3), lifting cylinders (4 a) arranged in each lifting cylinder mounting groove (4), telescopic cylinder fixing pins (5 a) arranged in each telescopic cylinder mounting groove (5), telescopic cylinders (5 d) hinged to the telescopic cylinder fixing pins (5 a), first holes (5 b) arranged on the telescopic cylinder mounting grooves (5) on one side of the telescopic cylinder fixing pins (5 a), pin holes (5 e) correspondingly matched with the first holes (5 b) arranged on the extending ends of the telescopic cylinders (5 d), a driven plate (6 a) arranged in the driven plate mounting grooves (6), a protruding connecting rod (6 c) arranged on the driven plate (6 a), and at least one second hole (6 d) arranged on the bottom of the driven plate mounting grooves (6), wherein the connecting rod (6 c) extends out of the second holes (6 d), a rubber pad extending out of the output end of each lifting cylinder contacts with the ground when the lower body moves to a proper position, and then the whole lifting cylinder extends out of the output shaft of the supporting foot, so that the whole lifting cylinder continuously leaves a fine-tuning bed, and the whole wheel is enabled to be continuously adjusted and stable;
The movable plate (b) comprises a plate body (10), a circle of wall plates (9) perpendicular to the appearance of the plate body (10) are arranged on the plate surface on one side of the plate body (10), a group of through holes (11) are uniformly distributed on the plate body (10) on the inner side of the wall plates (9), a group of lifting cylinder seats (12) which are coaxially distributed are arranged on the plate body (10) on one side of the through holes (11), lifting cylinders (12 a) are arranged on the lifting cylinder seats (12), and lifting discs (11 a) which are matched with the output shafts of the lifting cylinders are arranged in the through holes (11), and the lifting cylinders drive the lifting discs to be used for lifting plate ballast beds placed on the plate body;
A group of connecting pins (13) are uniformly distributed on a plate body (10) in the wall plate (9), the connecting pins (13) penetrate through corresponding first holes (5 b) and then are connected and matched with pin holes (5 e) on the extending end of a corresponding telescopic oil cylinder (5 d), at least one connecting rod socket (14) which is correspondingly matched with a connecting rod (6 c) is also arranged on the plate body (10), at least one yielding gap (17 a) which is correspondingly matched with a cable access groove (7) is arranged on the wall plate (9), a cover plate (17) which is corresponding to the shape of the bottom plate (1) is arranged at one end part of the surrounding plate (2), and a group of yielding gaps (17 a) which are corresponding to the wheel mounting groove and the jacking oil cylinder mounting groove are arranged on the cover plate (17);
At least one notch (8) is arranged on the groove walls of the jacking oil cylinder mounting groove (4), the telescopic oil cylinder mounting groove (5), the driven plate mounting groove (6) and the cable access groove (7);
And a connecting seat (16) correspondingly matched with the drag chain is arranged at the outer side of the cable access groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248085.3A CN108532383B (en) | 2018-03-24 | 2018-03-24 | Fine adjustment trolley for plate ballast bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248085.3A CN108532383B (en) | 2018-03-24 | 2018-03-24 | Fine adjustment trolley for plate ballast bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108532383A CN108532383A (en) | 2018-09-14 |
| CN108532383B true CN108532383B (en) | 2024-04-19 |
Family
ID=63484657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810248085.3A Active CN108532383B (en) | 2018-03-24 | 2018-03-24 | Fine adjustment trolley for plate ballast bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108532383B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252087A (en) * | 2020-12-08 | 2021-01-22 | 安徽兴宇轨道装备有限公司 | Precast slab ballast bed construction method |
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|---|---|---|---|---|
| KR20010085112A (en) * | 2001-08-10 | 2001-09-07 | 이무식 | Apparatus for replacing a railroad tie |
| DE10152601A1 (en) * | 2001-09-18 | 2003-04-17 | Weco Bahnueberwege Und Auffang | Railway track cover comprises panels or grids mounted on either side of and between the rails on U-profiled supports attached to base plates fitting under rails and held in position by L-profiles |
| RU108455U1 (en) * | 2011-05-05 | 2011-09-20 | Общество с ограниченной ответственностью "ЭЛАСТОИМПЭКС" | SYSTEM FOR STRENGTHENING THE BALLAST PRISM OF THE RAILWAY |
| CN103806402A (en) * | 2014-02-28 | 2014-05-21 | 昆明中铁大型养路机械集团有限公司 | Two-way trailer wagon for railway ballast bed operation device |
| CN203774705U (en) * | 2014-02-24 | 2014-08-13 | 青岛四方川崎车辆技术有限公司 | Novel railway vehicle wire slot |
| CN105937195A (en) * | 2016-06-15 | 2016-09-14 | 安徽兴宇轨道装备有限公司 | Plate adjusting trolley for laying prefabricated plate ballast bed |
| CN106379373A (en) * | 2016-10-31 | 2017-02-08 | 安徽兴宇轨道装备有限公司 | Vehicle frame lifting device for track construction vehicle |
| CN208201518U (en) * | 2018-03-24 | 2018-12-07 | 安徽兴宇轨道装备有限公司 | A kind of accurate adjustment trolley of integrated sleeper bed |
-
2018
- 2018-03-24 CN CN201810248085.3A patent/CN108532383B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010085112A (en) * | 2001-08-10 | 2001-09-07 | 이무식 | Apparatus for replacing a railroad tie |
| DE10152601A1 (en) * | 2001-09-18 | 2003-04-17 | Weco Bahnueberwege Und Auffang | Railway track cover comprises panels or grids mounted on either side of and between the rails on U-profiled supports attached to base plates fitting under rails and held in position by L-profiles |
| RU108455U1 (en) * | 2011-05-05 | 2011-09-20 | Общество с ограниченной ответственностью "ЭЛАСТОИМПЭКС" | SYSTEM FOR STRENGTHENING THE BALLAST PRISM OF THE RAILWAY |
| CN203774705U (en) * | 2014-02-24 | 2014-08-13 | 青岛四方川崎车辆技术有限公司 | Novel railway vehicle wire slot |
| CN103806402A (en) * | 2014-02-28 | 2014-05-21 | 昆明中铁大型养路机械集团有限公司 | Two-way trailer wagon for railway ballast bed operation device |
| CN105937195A (en) * | 2016-06-15 | 2016-09-14 | 安徽兴宇轨道装备有限公司 | Plate adjusting trolley for laying prefabricated plate ballast bed |
| CN106379373A (en) * | 2016-10-31 | 2017-02-08 | 安徽兴宇轨道装备有限公司 | Vehicle frame lifting device for track construction vehicle |
| CN208201518U (en) * | 2018-03-24 | 2018-12-07 | 安徽兴宇轨道装备有限公司 | A kind of accurate adjustment trolley of integrated sleeper bed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108532383A (en) | 2018-09-14 |
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