CN113859269B - Mining double-electric-rack-line rack rail traction system - Google Patents
Mining double-electric-rack-line rack rail traction system Download PDFInfo
- Publication number
- CN113859269B CN113859269B CN202111110615.6A CN202111110615A CN113859269B CN 113859269 B CN113859269 B CN 113859269B CN 202111110615 A CN202111110615 A CN 202111110615A CN 113859269 B CN113859269 B CN 113859269B
- Authority
- CN
- China
- Prior art keywords
- traction
- rail
- deviation adjusting
- quick
- track
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B15/00—Combinations of railway systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a mining double-electric-rack-line toothed-rail traction system which is applied to underground mines and comprises a track tractor, wherein the track tractor is driven by using electric power of a storage battery or a stringing system as a power source and can move on a track system; the vehicle-mounted deviation adjusting device is arranged on the rail tractor and is provided with a damping device capable of moving transversely; the rail deviation adjusting device is arranged on the rail system, and a traction seat capable of moving transversely is arranged on the rail deviation adjusting device; the front end of the traction rod is movably connected with the damping device, and the rear end of the traction rod is movably connected with the traction seat; a trackless rubber-tyred vehicle is provided with a quick-change connecting column which is used for realizing quick connection and separation with a traction seat. The system can realize the compensation and deviation adjustment operation of the transverse position of the railed vehicle and the trackless vehicle in the traction process.
Description
Technical Field
The invention belongs to the technical field of trackless auxiliary transportation of inclined shafts of coal mines, and particularly relates to a mining double-electric-tooth-track traction system.
Background
In the coal mine construction process, the auxiliary transportation distance is continuously increased along with the increase of the coal mining depth. The long-distance large-gradient transportation working condition appears in the field of coal mines. The transportation system at the present stage mostly adopts rail transportation or trackless auxiliary transportation as the transportation mode, and the transportation distance is increased due to the fact that the adhesion force is limited and the transportation gradient is small. The existing transportation mode is not suitable for the transportation working condition of long distance and large gradient. The trackless transportation is convenient and flexible, can realize continuous transportation, and becomes the trend of coal mine auxiliary transportation. However, the application of the connecting device between the rail-bound tractor and the trackless rubber-tyred vehicle in the underground long-distance and large-gradient transportation working condition is not reported.
Disclosure of Invention
The present invention has been made in view of the above problems. The invention aims to provide a mining double-electric-rack-line toothed rail traction system which can perform compensation and deviation adjustment operation on transverse positions generated in the traction process of a rail tractor and a trackless rubber-tyred vehicle.
In order to solve the technical problems, the invention adopts the technical scheme that: a mining double-electric-rack-line toothed-rail traction system is applied to the underground of a mine and comprises:
the rail-bound tractor is driven by using electric power of a storage battery or a stringing system as a power source and can move on the rail system;
the vehicle-mounted deviation adjusting device is arranged on the rail tractor and is provided with a damping device capable of moving transversely;
the rail deviation adjusting device is arranged on the rail system, and a traction seat capable of moving transversely is arranged on the rail deviation adjusting device;
the front end of the traction rod is movably connected with the damping device, and the rear end of the traction rod is movably connected with the traction seat;
a trackless rubber-tyred vehicle is provided with a quick-change connecting column which is used for realizing quick connection and separation with a traction seat.
Preferably, the vehicle-mounted deviation adjusting device comprises a bearing frame, the damping device is arranged in the bearing frame, the damping device comprises two mutually parallel slide rails, a deviation adjusting oil cylinder and an energy accumulator, each slide rail is provided with a roller sliding block connected with the slide rail, and the upper side and the lower side of each slide rail are provided with pulleys; the roller sliding blocks on the sliding rail on the front side of the vehicle-mounted deviation adjusting device are connected with a piston rod of a deviation adjusting oil cylinder, an oil port of the deviation adjusting oil cylinder is communicated with a pressure outlet of the energy accumulator, and the two roller sliding blocks and the four pulleys are connected through a rope, so that the two roller sliding blocks can slide along the guide rail under the traction of the rope.
Preferably, the track tuningout device includes glide machanism, link, damping spring and carrier wheel, and glide machanism includes slide plate and lower slide plate, the traction seat is fixed at the top of last slide plate, goes up and is equipped with a plurality of with bellied crossbeam on the slide plate, is equipped with the recess that matches with the crossbeam on the slide plate down, can follow lateral sliding after going up slide plate and lower slide plate lock, and the link is installed on the outside axletree that is located two carrier wheels of homonymy, is equipped with the opening that can supply lower slide plate to pass on the link, and the link is equipped with the supporting part that stretches out to the outside below the open-ended, and a plurality of damping spring installs side by side between the bottom of supporting part and link.
Preferably, the traction seat comprises a quick-change connecting disc, a control lever, a traction base and a hinge pin shaft, the quick-change connecting disc is connected with the traction base through the hinge pin shaft, the quick-change connecting disc can swing along the circumferential direction of the hinge pin shaft, and the control lever is used for controlling quick connection and separation of the quick-change connecting column and the quick-change connecting disc.
Preferably, the front end and the rear end of the traction rod are provided with universal hinge devices.
Preferably, the track system comprises a middle track and two side tracks, wherein a part of the middle track is installed in the inclined shaft branch hole, and the track system adopts a hidden track.
Compared with the prior art, the invention has the following beneficial effects.
The quick connecting column can realize quick connection and separation operation between the trackless rubber-tyred vehicle and the rail tractor, and has high connection efficiency and stable operation. The vehicle-mounted deviation adjusting device and the track deviation adjusting device can realize the compensation deviation adjusting operation of the transverse position of the track and the trackless vehicle in the traction process. The track system adopts the hidden track, the running track of the track-guided tractor does not influence the passing of the rubber-tyred vehicle, and the convenient running of the track-guided vehicle and the trackless vehicle is realized.
Drawings
Fig. 1 is a working state diagram of a mining dual-power-line rack-and-rail traction system according to an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of the vehicle-mounted deviation adjusting device and the track deviation adjusting device according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a first internal structure of the vehicle-mounted offset adjustment apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a second internal structure of the vehicle-mounted offset adjustment apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a third internal structure of the vehicle-mounted offset adjustment apparatus according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a drawbar according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a track deviation adjusting device according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a sliding mechanism according to an embodiment of the present invention.
Fig. 9 is a top view of a quick-change connector pad provided in an embodiment of the invention.
Fig. 10 is a side view of a quick-change connector disc according to an embodiment of the present invention.
Figure 11 is a side view of a railcar tractor, according to one embodiment of the present invention.
Fig. 12 is a layout diagram of a track system according to an embodiment of the present invention.
In the figure, 3-a rail-bound tractor; 4-a rail system; 5-vehicle offset adjusting device; 6, a traction rod; 7-a track deviation adjusting device; 8-trackless rubber-tyred vehicle; 5.1-carrying frame; 5.2-sliding rail; 5.3-pulley; 5.4-roller sliding block; 5.5-deviation adjusting oil cylinder; 5.6-energy accumulator; 5.7-rope, 6.1-connecting rod; 6.2-universal hinge; 7.1-a traction seat; 7.2-upper sliding plate; 7.3-connecting frame; 7.4-damping spring; 7.5-carrying wheel; 7.6-guide wheel; 7.1.1-quick change connecting disc; 7.1.2-joy stick; 7.1.3-traction base; 7.1.4-hinge pin; 8.1-quick change connecting column.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a working state diagram of a mining dual-power-line rack-and-rail traction system according to an embodiment of the present invention. Referring to fig. 1, 2, 3, 7 and 11, the mining double-electric-rack-line toothed-rail traction system of the embodiment of the invention is applied to the underground of a mine, and comprises a rail tractor 3, a vehicle-mounted deviation adjusting device 5, a rail deviation adjusting device 7, a traction rod 6 and a trackless rubber-tyred vehicle 8, wherein the rail tractor 3 is driven by using electric power of a storage battery or a trolley line system as a power source and can move on a rail system 4; the vehicle-mounted deviation adjusting device 5 is arranged on the track tractor 3, and a damping device capable of moving transversely is arranged on the vehicle-mounted deviation adjusting device 5; the rail deviation adjusting device 7 is arranged on the rail system 4, and a traction seat 7.1 capable of moving transversely is arranged on the rail deviation adjusting device 7; the front end of the traction rod 6 is movably connected with the damping device, and the rear end of the traction rod 6 is movably connected with a traction seat 7.1; the trackless rubber-tyred vehicle 8 is provided with a quick-change connecting column 8.1 on the trackless rubber-tyred vehicle 8, and the quick-change connecting column 8.1 is used for realizing quick connection and separation with a traction seat 7.1.
It can be understood that the track-bound tractor 3 adopts a double-trolley mode, power is provided by electric power of a storage battery and a trolley system, zero emission and no pollution are realized, free switching between two kinds of power can be realized, the trolley system is used for vehicle running under the condition of long distance and large slope, the storage battery realizes a power source under the emergency condition of the vehicle and is simultaneously used for vehicle running in a non-trolley area.
The mining double-electric-rack-line toothed rail traction system in the embodiment of the invention can realize the compensation and deviation adjustment operation of the transverse positions of the track tractor and the trackless rubber-tyred vehicle in the traction process through the vehicle-mounted deviation adjustment device and the rail deviation adjustment device. The mining double-electric-rack-line toothed-rail traction system provided by the embodiment of the invention is provided with the quick-change connecting column, can realize quick connection and separation operation between the trackless rubber-tyred vehicle and the rail tractor, and is high in connection efficiency and stable in operation.
In an embodiment of the invention, referring to fig. 3-5, the vehicle-mounted deviation adjusting device 5 comprises a bearing frame 5.1, a damping device is arranged in the bearing frame 5.1, the damping device comprises two mutually parallel slide rails 5.2, a deviation adjusting oil cylinder 5.5 and an energy accumulator 5.6, each slide rail 5.2 is provided with a roller sliding block 5.4 connected with the slide rail, and the upper side and the lower side of each slide rail 5.2 are provided with pulleys 5.2; the roller sliding blocks 5.4 on the sliding rail 5.2 positioned on the front side of the vehicle-mounted deviation adjusting device 5 are connected with a piston rod of a deviation adjusting oil cylinder 5.5, an oil port of the deviation adjusting oil cylinder 5.5 is communicated with a pressure outlet of an energy accumulator 5.6, and the two roller sliding blocks 5.4 are connected with the four pulleys 5.3 through ropes 5.7, so that the two roller sliding blocks 5.4 can slide along the guide rail 5.2 under the traction of the ropes 5.7. And a roller sliding block 5.4 on a sliding rail 5.2 positioned at the rear side of the vehicle-mounted deviation adjusting device 5 is hinged with the traction rod 6.
In an embodiment of the invention, referring to fig. 7 and 8, the rail deviation adjusting device 7 includes a sliding mechanism, a connecting frame 7.3, a damping spring 7.4 and a bearing wheel 7.5, the sliding mechanism includes an upper sliding plate 7.2 and a lower sliding plate, a traction seat 7.1 is fixed on the top of the upper sliding plate 7.2, a plurality of protruding beams are arranged on the upper sliding plate 7.2, a groove matched with the beams is arranged on the lower sliding plate, the upper sliding plate 7.2 and the lower sliding plate can slide along the transverse direction after being buckled, the connecting frame 7.3 is arranged on the outer axle of two bearing wheels 7.5 positioned on the same side, an opening for the lower sliding plate to pass through is arranged on the connecting frame 7.3, a supporting part extending outwards is arranged below the opening of the connecting frame 7.3, and a plurality of damping springs 7.4 are arranged side by side between the supporting part and the bottom of the connecting frame 7.3. A guide wheel 7.6 is mounted in front of the front carrier wheel 7.5, and a guide wheel 7.6 is also mounted behind the rear carrier wheel 7.5. The bearing wheels 7.5 and the guide wheels 7.6 can realize the bearing and guiding fixation of the track deviation adjusting device.
It will be appreciated that the glide mechanism 7.2 can be adjusted laterally by sliding between the cross beam and the groove; the damping spring 7.4 adopts a spring with higher rigidity, and can realize damping.
In an embodiment of the invention, referring to fig. 9 and 10, the traction seat 7.1 includes a quick-change connection disc 7.1.1, a control lever 7.1.2, a traction base 7.1.3 and a hinge pin 7.1.4, the quick-change connection disc 7.1.1 and the traction base 7.1.3 are coupled through the hinge pin 7.1.4, the quick-change connection disc 7.1.1 can swing along the circumferential direction of the hinge pin 7.1.4, and the control lever 7.1.2 is used for controlling quick connection and disconnection between the quick-change connection post 8.1 and the quick-change connection disc 7.1.1. When the operating rod is pulled out, the quick separation is realized, and after the quick-change connecting column is inserted into the quick-change connecting disc, the automatic quick connection can be realized. The fifth wheel 7.1 can be implemented with the solutions of the fifth wheel of heavy trucks known in the art.
In one embodiment of the invention, referring to fig. 6, the tow bar 6 is provided with universal hinges 6.2 at both front and rear ends to allow flexibility in the tow connection.
In one embodiment of the present invention, referring to fig. 1 and 12, the track system 4 comprises a middle track and two side tracks, wherein a portion of the middle track is installed in a branch hole of a slant well, and the track system 4 adopts a dark track. The system tracks 4 can realize the free switching function between different tracks, the middle track is used for the quick connection and transportation work between the rail tractor and the trackless rubber-tyred vehicle, and the tracks on the two sides are used for the storage of the rail tractor so as to facilitate the maintenance work. The hidden rail is adopted, the running rail of the rail tractor does not influence the passing of the rubber-tyred vehicle, and the convenient running of the rail and the trackless vehicle is realized.
The mining double-electric-rack-line toothed-rail traction system in the embodiment of the invention can be applied to the traction operation of a trackless rubber-tyred vehicle under the condition of large gradient, so that the trackless rubber-tyred vehicle can adapt to the working condition of large gradient without transferring and realize continuous transportation.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (6)
1. The utility model provides a mining two electric wire rack racks rack rail traction system which characterized in that: the application is in the pit, includes:
the track-bound tractor (3) is driven by using the electric power of a storage battery or a stringing system as a power source and can move on the track system (4);
the vehicle-mounted deviation adjusting device (5) is arranged on the track tractor (3), and a damping device capable of moving transversely is arranged on the vehicle-mounted deviation adjusting device (5);
the rail deviation adjusting device (7) is arranged on the rail system (4), and a traction seat (7.1) capable of moving transversely is arranged on the rail deviation adjusting device (7);
the front end of the traction rod (6) is movably connected with the damping device, and the rear end of the traction rod (6) is movably connected with the traction seat (7.1);
the trackless rubber-tyred car (8) is provided with a quick-change connecting column (8.1) on the trackless rubber-tyred car (8), and the quick-change connecting column (8.1) is used for realizing quick connection and separation with a traction seat (7.1).
2. The mining dual-rack-line rack rail traction system according to claim 1, characterized in that: the vehicle-mounted deviation adjusting device (5) comprises a bearing frame (5.1), the damping device is arranged in the bearing frame (5.1), the damping device comprises two mutually parallel slide rails (5.2), a deviation adjusting oil cylinder (5.5) and an energy accumulator (5.6), each slide rail (5.2) is provided with a roller sliding block (5.4) connected with the slide rail, and the upper side and the lower side of each slide rail (5.2) are provided with pulleys (5-3); the roller sliding blocks (5.4) on the sliding rails (5.2) on the front side of the vehicle-mounted deviation adjusting device (5) are connected with piston rods of deviation adjusting oil cylinders (5.5), oil ports of the deviation adjusting oil cylinders (5.5) are communicated with pressure outlets of energy accumulators (5.6), and the two roller sliding blocks (5.4) are connected with the four pulleys (5.3) through ropes (5.7) so that the two roller sliding blocks (5.4) can slide along the sliding rails (5.2) under the traction of the ropes (5.7).
3. The mining dual-power-line rack traction system according to claim 1, characterized in that: the rail deviation adjusting device (7) comprises a sliding mechanism, a connecting frame (7.3), damping springs (7.4) and bearing wheels (7.5), the sliding mechanism comprises an upper sliding plate (7.2) and a lower sliding plate, a traction seat (7.1) is fixed at the top of the upper sliding plate (7.2), a plurality of convex cross beams are arranged on the upper sliding plate (7.2), grooves matched with the cross beams are formed in the lower sliding plate, the upper sliding plate (7.2) and the lower sliding plate can slide transversely after being buckled, the connecting frame (7.3) is installed on an outer axle of two bearing wheels (7.5) positioned on the same side, an opening through which the lower sliding plate can pass is formed in the connecting frame (7.3), a supporting part extending outwards is arranged below the opening, and the damping springs (7.4) are installed side by side between the bottom of the supporting part and the connecting frame (7.3).
4. The mining dual-rack-line rack rail traction system according to claim 1, characterized in that: the traction seat (7.1) comprises a quick-change connecting disc (7.1.1), an operating rod (7.1.2), a traction base (7.1.3) and a hinge pin (7.1.4), the quick-change connecting disc (7.1.1) and the traction base (7.1.3) are connected through the hinge pin (7.1.4), the quick-change connecting disc (7.1.1) can swing along the circumferential direction of the hinge pin (7.1.4), and the operating rod (7.1.2) is used for controlling the quick-change connecting column (8.1) and the quick-change connecting disc (7.1.1) to be quickly connected and separated.
5. The mining dual-power-line rack traction system according to claim 1, characterized in that: the front end and the rear end of the traction rod (6) are provided with universal hinging devices (6.2).
6. The mining dual-power-line rack traction system according to claim 1, characterized in that: the track system (4) comprises a middle track and two side tracks, wherein one part of the middle track is arranged in the inclined shaft branch hole, and the track system (4) adopts a hidden track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111110615.6A CN113859269B (en) | 2021-09-23 | 2021-09-23 | Mining double-electric-rack-line rack rail traction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111110615.6A CN113859269B (en) | 2021-09-23 | 2021-09-23 | Mining double-electric-rack-line rack rail traction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113859269A CN113859269A (en) | 2021-12-31 |
| CN113859269B true CN113859269B (en) | 2022-09-02 |
Family
ID=78993297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111110615.6A Active CN113859269B (en) | 2021-09-23 | 2021-09-23 | Mining double-electric-rack-line rack rail traction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113859269B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI860450A0 (en) * | 1985-01-31 | 1986-01-30 | Metallgesellschaft Ag | RAELSFRITT ELMOTORDRIVET LEDFORDON FOER ANVAENDNING I GRUVOR. |
| CN105438189A (en) * | 2015-12-29 | 2016-03-30 | 中国煤炭科工集团太原研究院有限公司 | Traction rubber wheel type car of four-wheeled steering rail tramcar |
| CN105599782A (en) * | 2015-12-29 | 2016-05-25 | 中国煤炭科工集团太原研究院有限公司 | Rubber-tired track mine car traction device with offset compensation function |
| CN209683463U (en) * | 2018-12-19 | 2019-11-26 | 河南帕菲特搬运设备有限公司 | The two-way rail carry vehicle of trackless multiple linkage |
| CN211314258U (en) * | 2019-11-28 | 2020-08-21 | 神华国能集团有限公司 | Equipment train for mine |
| CN111942411A (en) * | 2020-07-23 | 2020-11-17 | 中国煤炭科工集团太原研究院有限公司 | Ferrying transportation method for underground coal mine large-gradient trackless rubber-tyred vehicle |
-
2021
- 2021-09-23 CN CN202111110615.6A patent/CN113859269B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI860450A0 (en) * | 1985-01-31 | 1986-01-30 | Metallgesellschaft Ag | RAELSFRITT ELMOTORDRIVET LEDFORDON FOER ANVAENDNING I GRUVOR. |
| CN105438189A (en) * | 2015-12-29 | 2016-03-30 | 中国煤炭科工集团太原研究院有限公司 | Traction rubber wheel type car of four-wheeled steering rail tramcar |
| CN105599782A (en) * | 2015-12-29 | 2016-05-25 | 中国煤炭科工集团太原研究院有限公司 | Rubber-tired track mine car traction device with offset compensation function |
| CN209683463U (en) * | 2018-12-19 | 2019-11-26 | 河南帕菲特搬运设备有限公司 | The two-way rail carry vehicle of trackless multiple linkage |
| CN211314258U (en) * | 2019-11-28 | 2020-08-21 | 神华国能集团有限公司 | Equipment train for mine |
| CN111942411A (en) * | 2020-07-23 | 2020-11-17 | 中国煤炭科工集团太原研究院有限公司 | Ferrying transportation method for underground coal mine large-gradient trackless rubber-tyred vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113859269A (en) | 2021-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103332081B (en) | Highway-railway dual-purpose motor tractor | |
| CN112277974A (en) | Transmission mechanism for coal mine heavy-gradient track tractor | |
| CN103244175B (en) | A kind of underground coal mine trackless step type is from moving device train | |
| CN104139787A (en) | Tractor for magnetic levitation traffic installation routing inspection rescue | |
| CN113859269B (en) | Mining double-electric-rack-line rack rail traction system | |
| CN105905128B (en) | SQ-1200 endless rope series tractor gets rid of the technology of shunting the multilevel transport inclined gallery of mine | |
| CN203418943U (en) | Narrow wheel track guide bridge device | |
| NL2029644B1 (en) | Overhead monorail driving unit group realizing mechanical fast power distribution | |
| CN114132355B (en) | Traction rescue vehicle for side-guided rail-running vehicle and guiding advancing method thereof | |
| CN202243482U (en) | Mining hydraulic self-advance trackless equipment train | |
| CN105599782B (en) | A kind of rubber wheel type orbit mine car draw-gear with offset compensation function | |
| CN212685533U (en) | Ultra-high speed superconducting magnetic suspension rail transit system | |
| CN107512273A (en) | Power running gear and rubber tire guide rail electric car | |
| CN109941299B (en) | Movable grounding device for railway wagon | |
| CN203020329U (en) | Self-moving system of equipment trains for fully mechanized coal face | |
| CN220996048U (en) | Loader platform tractor for railway | |
| CN221366951U (en) | Bidirectional emergency braking device of low-speed heavy vehicle for coal mine | |
| CN217995744U (en) | Electricity supplying mechanism of compactor device | |
| CN215705512U (en) | Two-class chassis for highway and railway dual-purpose running | |
| CN219706989U (en) | Adjustable turning device of continuous tractor | |
| CN206265064U (en) | SQ-1200 endless rope series tractor gets rid of the technology of shunting the multilevel transport inclined gallery of mine | |
| CN219385829U (en) | Rail exchanging operation system | |
| CN215971520U (en) | Wear-resisting arresting gear for track traffic | |
| CN219079970U (en) | Rail car passes through bend auxiliary device | |
| CN107512272A (en) | Non-powered running gear and rubber tire guide rail electric car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |