![]() Sleeper-tamping machine
专利摘要:
A track leveling and ballast tamping machine comprises a standard vehicle capable of being coupled to a train, two undercarriages supporting the frame for movement in an operating direction along a track and a drive for moving the frame along the track. A ballast tamping unit is connected to the frame between the undercarriages and a track lifting unit is connected to the frame between the undercarriages ahead of the ballast tamping unit in the operating direction, a track leveling reference system controlling the lifting of the track by the track lifting unit. A ballast receiving and storage container is mounted on the frame ahead of the ballast tamping and track lifting units in a forward portion thereof, the container having adjustable outlet ports for distributing ballast in respective ones of the cribs, and a ballast conveyor is arranged on the frame for conveying ballast to the ballast receiving and storage container in the forward portion of the frame, in the operating direction. 公开号:SU1558304A3 申请号:SU874028914 申请日:1987-02-04 公开日:1990-04-15 发明作者:Тойрер Йозеф 申请人:Франц Плассер Банбаумашинен Индустригезельшафт Мбх (Фирма); IPC主号:
专利说明:
The invention relates to railway transport and can be used in the repair of railway tracks. The purpose of the invention is to enhance the functionality by providing an adjustment of the position of the track. FIG. 1 shows a schematic representation of a tamping machine as part of a performance train; in fig. 2 — node I in FIG. one; in fig. 3 - the same plan view; in fig. 4 - tamping machine as part of a train for loading and transporting rubble; in fig. 5 - the same, in the composition of a rubble-free train; in fig. 6 - the same, in composition with a machine for supplying rubble; in fig. 7 is a view A of FIG. 6 The tamping machine 1 (Figures 1-3) with the frame 3 supported on the carriage 2 can move along the track formed from the rails 4 and the track concrete sleepers 5. The frame 3 of the machine for use in the train, connected to the track train 6, continuously movable and created to replace the rails 4 and the sleepers 5, is formed from two, mounted one behind the other in the longitudinal direction of the machine, connected to each other by a hinge of 7 parts 8 and 9. On the rear relative to the working direction indicated by the arrow 10, part 9 of the frame, there is a tamping unit 11 with vibrating and transversely movable taps 12, as well as a lifting and leveling mechanism 13. In front of the vertically movable tamping block 11 provides a rubble hopper 14d, having adjustable outflow hatches 15 for ballasting the inter-hatchbox 16. The outlet hatches 15 are connected to hydraulic gates 17, 00 00 % C / 4 can be drawn on an axis perpendicular to the longitudinal axis of the machine. For transportation of rubble, a transport device 18 mounted on the frame 3 of the machine is provided, which is formed from several frames of belt conveyors 19 that are located one behind the other over each part 8 and 9, which are a continuation of the system of belt conveyors 20 of the track train 6. Above the bunker 14 for a shebna is installed rotatably on an axis extending transversely to the longitudinal axis of the machine, the damper 21 due to which crushed stone transported by means of the conveying device 18 can be selectively diverted into the bin for chopping 14 or bare belt conveyors 22. The vertically movable tamping unit 11, the lifting and leveling mechanism 13 are mounted on guiding machines passing in the longitudinal direction and they move from one mezhdushpalny box 16 to another by means of a longitudinal movement actuator 23 in the direction indicated by arrows 24. Between the unit 11 and mechanism 13 is installed subordinate to the base frame 25, the contact roller 26, which forks covers the reference chord attached to the ends of the contact rollers. Directly behind the block 11 and the mechanism 13 are located the cab 27 of the operator with the central control device 28 and the cab 29 of the driver. For unloading track train 6, there is provided its own travel drive 30. Under the driver's cab 29, the tracker device 31 is mounted on the frame 3 of the machine, provided with a vertically movable and rotating around an axis passing in the machine’s transverse direction, a track brush 32. Before this tracker there is a transverse belt conveyor 33. On the front part 8 of the frame 3 of the machine 2, a number of subframe cabins 34 and belt vibrating conveyors 35 are provided for metal products used for fastening sleepers and rails. The composite netherm train 6, which is connected to the spindle by the crushing machine 1, consists of two parts, reinforced by struts with 0 five ABOUT five 0 five 0 five 0 five using the actuator 36 of the main frame 37 with a vertically movable chain-escapement belt connected to the belt conveyor system 20 for receiving and leveling rubble 39, as well as with devices 40 and 41 for cleaning old sleepers and unloading new ones. For transporting old and new sleepers, a gantry crane is provided, moving in the longitudinal direction of the machine through the crane runway. Outlet hatches 15 (Fig. 3) of the rubble hopper 14 are formed by four outlet channels 42 provided to be located above the inter-bed holder and installed in the longitudinal direction of the sleepers adjacent to each other. To distribute the rubble in the middle of the path, an additional discharge chute 43 is provided, located in the working direction. For transporting rubble into the hopper 14 (Fig. 5), a transport device 44 is provided that extends to the front end of the machine. The transport device 44 comprises a vertically movable elevator mounted with a protrusion forward on the frame of the machine, made in the form of a conveyor belt 45 for transporting rubble. This elevator contains a center-mounted plow 46 for leveling backfilling of inter-shpal boxes higher than the level of sleepers, and flaps 47 mounted on the sides for direction of rubble. The discharge chutes 42 (Fig. 6) are movable along the longitudinal guide 48 of the hopper 14 and connected by means of a connecting rod 49 (Fig. 7) with a frame for working members. In the front-end area of the hopper, a rubble 50 dispenser 50 is provided, made in the form of a sliding gate 51 connected to a hydraulic actuator 52, driven by a limit switch 53. For independent use of the working machine 54, made, for example, in the form of a rubble cleaning machine and containing sliding or retractable belt conveyors for supplying rubble, the transport device 44 for supplying crushed stone to the hopper 15 in the front end area of the machine is provided with a vertically movable pathway device 31. An endless high-lift belt conveyor 55 is provided between the track-removal device 31 and the rubble hopper 14 as a transport device. Continuously advancing in the working direction, the track train 6 dismantles the old path consisting of rails fastened with wooden sleepers, after which it clears the rubble in the groove formed in the way and using the chain evacuation conveyor 38 receives excess rubble. This received rubble using the connected belt conveyor system 20 through the device 41 for unloading new sleepers is fed to the conveyor device 18 connected to the track train 6 of the continuously movable tacking machine 1. From the belt conveyor system 20 shown in FIG. .21 $ crushed stone is completely dumped into bunker 14 below for crushed stone. The operator, who is in the working cabin 27, controls the process of submerging the tamping unit 11 into the ballast layer, as well as the subsequent cyclical movement of both tamping, lifting and leveling mechanism 13 provided for each rail, while the entire track train 6s the connected tamping machine 1 continuously advances. The operator, closely observing the amount of rubble in the tamping area in front of the bunker 14, affects also on the size of the exit hatches 15 of the bunker, pushing the gates 17 in pairs using a hydraulic actuator with a small consumption of rubble and shifting them with a large demand for rubble. Consequently, the rubble in the bunker 14 through the exhaust channels 42 located on both sides of each rail 4 in the area of the under-bed bases and through the middle outlet channel 43 (FIG. 3) falls between the loosely laid sleepers 5 and ballasts them as needed. Such ballasting provides a sufficient amount of rubble for tamping following ballasting with a periodically or cyclically movable tamping unit 11 of a continuously movable sleeper. Q 5 0 5 0 0 50 five Thanks to the fact that the bunker 14 is located in front, regardless of the state of the ballast layer at the time of reconstruction of the track, it is possible to prepare uniform ballasting of the track and to create uniform, uniform and durable under-heel bases with a single operation. By means of a road-harvesting device 31, located at the rear end of the machine 1, excess crushed stone, under certain conditions, on concrete sleepers 5, is transported to the transverse belt conveyor 33 and discharged from it to the flanks of the ballast layer. The entire transportation of rubble by the chain evacuation conveyor 38 to the bunker 14 is carried out without adversely affecting the working devices and mechanisms underneath the transporting devices. Thus, operators, also in subframe cabins 34, can freely fix the fasteners designed to fasten the newly laid rail 4 with sleepers 5. As soon as the hopper 14 is completely filled with crushed stone, the valve 21 is moved forward into the working direction, so that all rubble raised by the evacuation conveyor 38 is now transported by other belt conveyors 22 over the tamping machine 1 and at the end of the train is dropped, for example, into agon for bulk materials. However, if the flap 21 is in the middle position, the rubble will be dumped into both the hopper 14 and the next belt conveyor 22. The tamping machine (Fig. 5) can be used directly behind a continuously moving rubble cleaning machine without using the ballast prism itself. A tamping machine solves the problem of leveling the different amounts of dumped cleaned rubble caused by different notches in height, so that in areas with a very large amount of broken rubble, the excess rubble takes the belt conveyor 45 installed in front and stores it in the hopper 14. In those In places where a very small amount of crushed rubble comes from the rubble, the rubble in the hopper of the tamping and punching machine is discharged onto the path through the exhaust chutes as needed. In this way, in the area of the next block, an already uniformly baled path is created to obtain strong base staples. At the same time, even distribution of rubble has a particular advantage, since as a result of complete removal of the ballast layer using a chain evacuation conveyor 56, the new ballast layer is not fully compacted and tamping requires correspondingly a lot of rubble to fill the inter-sleeper boxes. Therefore, in this regard, the use of the mechanism for tamping two sleepers has the advantage of increasing productivity — labor productivity. If there is very little rubble in the rubble bunker, then new rubble can be discharged into the bunker via belt conveyor 22 from the wagons with rubble behind the machine. The tamping machine shown in FIG. 6, is provided for continuous use behind a working machine 54, made, for example, in the form of a crushed stone. The rubble, located above the level of the sleepers, is loaded onto a high-lift belt conveyor 55 by means of a track-laying device 31 installed on the front and transported from it to a bunker. The outlet chute 42 located on the underside of the hopper 14, due to its connection with the frame for the working bodies, together with the tamping blocks 11 of the mechanisms 13, cyclically moves from one place of the tamping to another. At the same time, in the extreme position of the discharge chute 42, indicated by dash-dotted lines, the hydraulic actuator 52 is turned on by the stop switch 53, which then moves the slide valve 51 to the position indicated by the dot-dash lines (Fig. 7) and thereby opens the outlet 15 of the bunker . The consequence of this is the eruption of rubble from the bunker into the outlet gutter 42 under it and, at the same time, the gravel falls into two adjacent inter-sleeper pans through the smaller discharge gaps of the gutter. In order to avoid rubble on the sleeper, provide five 0 five 0 five 0 five 0 five Renovating the V-shaped deflector 57. As soon as the exhaust chute 42 is filled with the necessary amount of rubble, the hydraulic actuator 52 begins to work in the opposite direction, as a result of which the slide gate 51 moves and closes the exhaust hatch 15. By removing the discharge chute 42 from the tamping unit 11 to a distance corresponding to multiple distances between the sleepers axes, while the tamping unit 11 for tamping the sleepers located ahead of the outlet gutter, the hatches are located directly above the two interdushal boxes. During the continuous working movement of the tamping machine, the exhaust chutes 42 are displaced along the longitudinal guide 48, as a result of which the rubble is always located above the inter-row horn. In practice, the discharge chute 42 is discharged before reaching its extreme rear position (Fig. 6). As soon as the tamper frame with the intake body is completed (the chute 42 is moved to the front starting position, the filling and tamping workflow described begins anew. Since there are a total of four installed on both sides of the rail in the area of the under- bed base of the exhaust chutes 42 (Fig. 7), each of which contains two outlets, it is possible to have a large discharge capacity With the tracker 31 located at the rear end of the machine, possible excess gravel is immersed again on the transverse belt conveyor 33 and transported from there to the flank of the ballast layer. an independent machine equipped with ballast prism planners and a flank. For example, when using a working machine 54 installed on the front or a scrubber, for example, when cleaning not heavily contaminated rubble, too much cleaned rubble is obtained and the crushed stone hopper is full, then this rubble moves the conveyor belt of a crushed-stone cleaning machine to the crushed stone hopper , it is possible to drop directly onto the belt conveyor shown behind the hopper. From the conveyor belt, this excess crushed stone can be dumped, for example, into wagons for bulk materials installed behind the machine. If, however, a crushed j machine produces little crushed stone, then, if necessary, it is again discharged directly into the crushed stone bunker. But even when a small amount of rubble is coming in from a rubble cleaning machine 1, new rubble from rear mounted or possibly attached cars can be transported directly to the bunker by the dashed belt conveyor.2 In addition, the proposed sleeper can also be used as a regular, periodically moved from one sleeper to another machine.
权利要求:
Claims (9) [1] 1. A tamping machine, comprising a platform with control cabins in the front and end parts, mounted on the platform frame between the undercarriage mounted on its ends, a tamping block with a list of pivoting and vibrating drives of the pads, mounted on the frame in front of a tamping block in the direction of movement of the rubble hopper with discharge hatches and installation of adjustable drive gates in them, transporting device, including a conveyor, one end of which is located above the bunker 4, a track-harvesting device mounted on a frame with a possibility of lifting and including a brush rotating around an axis transverse to the longitudinal direction of the machine, characterized in that C, in order to expand the functionality by providing an adjustment of the position of the track, it is equipped with on the frame is a basic reference system, lifting and leveling mechanism, and the second end of the conveyor is placed in front of the machine. [2] 2.Kashina according to claim 1, that is, so that the exhaust hatches are formed by the corresponding four grooves located in the transverse direction of the machine above the tamping zones, the sleepers. [3] 3. The machine according to claim 1, characterized in that it is provided with an additional conveyor mounted behind said one and installed at its front end 3, with an ejector to guide rubble into the bunker or onto an additional conveyor, wherein said conveyors are reversible. [4] 4. Machine pop.1, characterized by the fact that the specified conveyor has an inclined receiving section, and the tamping unit, the lifting and trimming mechanism are mounted on an additional frame, which is mounted on the specified frame with the possibility of longitudinal movement by a drive. [5] 5. The machine according to claim 2, distinguished by the fact that the bunker is made with an additional exhaust hatch with an additional gate formed by an additional chute located behind the specified hatches along the longitudinal axis of the machine. [6] 6. The machine according to claim 2, distinguished by the fact that it is equipped with four additional discharge hatches formed by four additional channels located behind said discharge hatches in the machine transverse direction above the sleepers tamping zones. [7] 7. The machine according to claim 2, characterized in that the discharge chutes are installed with the possibility of longitudinal movement of the longitudinal drive move extra frame. [8] 8. The machine according to claim 4, characterized in that it is provided with shields for guiding rubble to the conveyor mounted at its receiving end, the tamping unit being configured to tamper two sleepers. [9] 9. The machine according to claim 5, characterized in that it is equipped with limit switches mounted on a hopper for interacting with said closures for controlling the actuators of the closures. // .. TIL Ttc / I I / 7 I I x W39 0 5 P 27 15 K CHE # Fie.2 f J D - // -: - ft; rfl - op.4pi- -n t-n 4 -T "-CH L i i T n i i - {fT-3 J Mr jH J Ohno t 35 8 35 . / I I / 7 I I x 39 0 5 P 27 15 K CHE # Fie.2 f J D - // -: - ft; rfl -n 4 “-Hi i jH J J t IB / ade kokevd and / 3 v /..гЧЧ 5 Л: .. ---: .. 33 32 3J J / AND Lg TSH 7.1 fill n m FIG. 3 rFPi 11 H P P- 5 23 T ij J I p T jl -t IX j -IT1 I l zz ran JLJUUL Lvf vf til r o s o 00 LO 1O df J, ipf 51 P W FIG. 7 Vida
类似技术:
公开号 | 公开日 | 专利标题 SU1558304A3|1990-04-15|Sleeper-tamping machine RU1777615C|1992-11-23|Machine for redistributing broken stone in ballast section of railway track US4479439A|1984-10-30|Mobile arrangement and method for improving a track bed US4576538A|1986-03-18|Box car RU2106451C1|1998-03-10|Device for recovering ballast layer base of railway track CA2102007C|2002-03-26|A loading wagon for the transport of bulk material US4799430A|1989-01-24|Mobile ballast cleaning apparatus US5364221A|1994-11-15|Track-bound freight car AU635111B2|1993-03-11|Bulk goods waggon GB2080375A|1982-02-03|A travelling machine and process for reconditioning the bed of railway tracks US4813488A|1989-03-21|Ballast cleaning machine US5090484A|1992-02-25|Mobile ballast cleaning machine arrangement SK278172B6|1996-03-06|The traveling machine for continual changing or track removing GB1587802A|1981-04-08|Travelling machine for laying sleepers US5394944A|1995-03-07|Installation for the continuous rehabilitation of a ballast bed US4004524A|1977-01-25|Method of renewal of a railroad track and train therefor US5727474A|1998-03-17|Freight car for storage of bulk material US6073561A|2000-06-13|Box car for transporting bulk material RU1817795C|1993-05-23|Crushed stone ballast bed distribution and levelling machine CA2137012C|2004-09-14|A machine installation for treating the ballast bed of a track RU2030500C1|1995-03-10|Device for picking-up, accumulation and distribution of track large ballast US4774890A|1988-10-04|Mobile track renewal installation GB2097846A|1982-11-10|Apparatus for forming a protective layer between the sub- grade and ballast of railway track RU2228983C2|2004-05-20|Rail track repair machine EP1614805A2|2006-01-11|Method and apparatus for laying railway tracks
同族专利:
公开号 | 公开日 GB2186307A|1987-08-12| AT389336B|1989-11-27| ATA35886A|1989-04-15| CN86106434A|1987-08-26| SE8700444D0|1987-02-06| AU574279B2|1988-06-30| GB8625424D0|1986-11-26| SE8700444L|1987-08-13| SK89287A3|1997-03-05| DD253268A5|1988-01-13| CA1287264C|1991-08-06| HU197604B|1989-04-28| GB2186307B|1989-11-01| SE464476B|1991-04-29| CN1005638B|1989-11-01| US4794862A|1989-01-03| SK278394B6|1997-03-05| DE3634399A1|1987-08-13| DE3634399C2|1997-07-17| ES2004370A6|1989-01-01| CZ89287A3|1994-02-16| CZ279791B6|1995-06-14| AU6395086A|1987-08-13| HUT46383A|1988-10-28|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 RU2619145C2|2012-05-30|2017-05-12|Матиса Материел Индустриел Са|Method, tamping machine, as well as composition of machines for tamping railway track|AT197302B|1956-05-25|1958-04-25|Schwermaschb Heinrich Rau Wild|Machine for cleaning the ballast from track beds| US3315616A|1964-02-24|1967-04-25|Bessemer And Lake Erie Railroa|Motor actuated drop-bottom hopper car doors| AT306774B|1968-10-25|1973-04-25|Plasser Bahnbaumasch Franz|Mobile device for the treatment of tracks| US3877160A|1971-05-24|1975-04-15|Plasser Bahnbaumasch Franz|Mobile apparatus for distributing and shaping the ballast of a railroad bed| IT1028620B|1975-03-28|1979-02-10|Donno Ferruccio De|SCREENING MACHINE FOR THE PURIFICATION OF STONE, IN PARTICULAR FOR THE PURIFICATION OF STONE OF THE RAILWAY MASSAGES| AT346887B|1976-10-15|1978-04-15|Plasser Bahnbaumasch Franz|MOBILE DEVICE FOR CONTINUOUSLY REPLACING A RAILWAY consisting of RAILS AND CROSS-SLEEPERS| AT358086B|1977-05-06|1980-08-25|Plasser Bahnbaumasch Franz|DEVICE FOR REPLACING THE RAIL FASTENERS AND IF NECESSARY OF THE RAILS OF A TRACK| AT359111B|1977-10-04|1980-10-27|Plasser Bahnbaumasch Franz|MACHINE ARRANGEMENT FOR MACHINING THE TRACK, ESPECIALLY WITH A BULLET BED CLEANING MACHINE| AT353820B|1977-11-25|1979-12-10|Plasser Bahnbaumasch Franz|ROLLER BRUSH FOR DRIVING TRACK MACHINERY| AT363115B|1978-05-09|1981-07-10|Plasser Bahnbaumasch Franz|SELF-DRIVING TRACK BED CLEANING MACHINE WITH STORAGE DEVICE| AT372721B|1980-02-25|1983-11-10|Plasser Bahnbaumasch Franz|MOBILE SYSTEM AND METHOD FOR CLEANING THE GRAVEL BED OF RAILWAYS| FR2498220B1|1981-01-22|1983-08-12|Sotramef| AT372724B|1981-02-27|1983-11-10|Plasser Bahnbaumasch Franz|MOBILE MACHINE SYSTEM WITH MULTIPLE, INDEPENDENTLY TRAVELABLE RAILWAY MACHINES| AT379176B|1981-12-22|1985-11-25|Plasser Bahnbaumasch Franz|DRIVABLE PLANT AND METHOD FOR CONTINUOUSLY PROGRESSIVE RENOVATION OF THE RAILWAYS| AT376259B|1982-09-09|1984-10-25|Plasser Bahnbaumasch Franz|TOOL ARRANGEMENT FOR A COMPLETE TRACK CORRECTION| GB2135369B|1982-09-09|1986-02-12|Plasser Bahnbaumasch Franz|Travelling railway track tamping machine with two pivotally interconnected machine frames| AT375426B|1982-09-20|1984-08-10|Plasser Bahnbaumasch Franz|FOERDER- OR ROOM CHAIN ARRANGEMENT FOR A TRACKING MACHINE| AT381127B|1983-09-28|1986-08-25|Plasser Bahnbaumasch Franz|CONTINUOUSLY TRAVELABLE TRACK-LEVELING AND LEVELING MACHINE| AT380281B|1983-10-05|1986-05-12|Plasser Bahnbaumasch Franz|MOBILE TRACK LEVELING AND LEVELING MACHINE|EP0436757B1|1990-01-10|1992-12-30|Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.|Railway track tamping machine| AT400160B|1990-03-21|1995-10-25|Plasser Bahnbaumasch Franz|MACHINE FOR DISTRIBUTING AND PLANNING BEDS| AT404039B|1990-03-21|1998-07-27|Plasser Bahnbaumasch Franz|MACHINE FOR DISTRIBUTING AND PLANNING THE BED| AT395876B|1990-03-21|1993-03-25|Plasser Bahnbaumasch Franz|TRACKABLE MACHINE FOR DISTRIBUTING AND PROFILING THE BEDGING BALL| AT398097B|1991-11-13|1994-09-26|Plasser Bahnbaumasch Franz|SYSTEM FOR PRODUCING A PLANUM PROTECTIVE LAYER| US5201127A|1992-02-19|1993-04-13|Keshaw Manufacturing Company, Inc.|Self metering ballast system| AT398096B|1992-04-29|1994-09-26|Plasser Bahnbaumasch Franz|PLANT FOR THE CONTINUOUS RESTORATION OF A GRAVEL BED OF A TRACK| EP0599799B1|1992-11-18|1996-12-18|Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.|Loading wagon for transporting bulk material| DE59307342D1|1993-01-29|1997-10-16|Plasser Bahnbaumasch Franz|Machine for renewing or cleaning a ballast bed| US5937763A|1996-04-23|1999-08-17|Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H.|Machine and method of distributing ballast| AT404947B|1997-02-12|1999-03-25|Plasser Bahnbaumasch Franz|TROLLEYS FOR THE GRADUATION OF A TRACK| AT405165B|1997-05-28|1999-06-25|Plasser Bahnbaumasch Franz|BULK LOADING WAGON| AT3876U3|2000-06-09|2001-02-26|Plasser Bahnbaumasch Franz|METHOD AND MACHINE FOR FILLING A TRACK| ITMI20041909A1|2004-10-08|2005-01-08|Cesare Rossanigo|CASE OF RAILWAY TRUCKS FROM PIETRISCO TRANSPORT AND OTHER MATERIALS PARTICULARLY FOR RAILWAY MACHINES CARRIAGE FOR RAILWAYS OF RAILWAYS INCLUDING THE CASSONE AND PROCEDURE TO CARRY OUT THAT CARRO| DE102007037441B3|2007-08-08|2009-01-22|Deutsche Gleis- Und Tiefbau Gmbh|Track-transportable bulk freight wagon| CN102154963B|2010-02-11|2014-07-23|襄樊金鹰轨道车辆有限责任公司|Construction machine for replacing ballasts of rail| US8875635B2|2011-03-04|2014-11-04|Georgetown Rail Equipment Company|Ballast delivery and computation system and method| ES2397739B1|2011-11-25|2013-11-26|José Antonio IBÁÑEZ LATORRE| Machine and method of maintenance of railway track for leveling, alignment, compaction and stabilization of track, with the ability to operate without interruption in its progress.| CN109505203B|2018-11-30|2020-04-21|西华大学|Road bed construction all-in-one|
法律状态:
2007-09-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20050205 |
优先权:
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申请号 | 申请日 | 专利标题 AT0035886A|AT389336B|1986-02-12|1986-02-12|TRACKING MACHINE WITH LIFTING, STOPPING AND, IF NECESSARY, DIRECTIONAL UNIT| 相关专利
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