CN108068840B - Inclined block type push head car pusher for refractory material kiln car transfer electric trailer and use method - Google Patents
Inclined block type push head car pusher for refractory material kiln car transfer electric trailer and use method Download PDFInfo
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- CN108068840B CN108068840B CN201711374114.2A CN201711374114A CN108068840B CN 108068840 B CN108068840 B CN 108068840B CN 201711374114 A CN201711374114 A CN 201711374114A CN 108068840 B CN108068840 B CN 108068840B
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- type push
- inclined block
- car
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61J—SHIFTING OR SHUNTING OF RAIL VEHICLES
- B61J3/00—Shunting or short-distance haulage devices; Similar devices for hauling trains on steep gradients or as starting aids; Car propelling devices therefor
- B61J3/12—Self-propelled tractors or pushing vehicles, e.g. mules
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
- F27D3/123—Furnace cars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Charging Or Discharging (AREA)
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Abstract
The inclined block type push head car pusher for the refractory material kiln car transferring electric trailer comprises a hydraulic car pusher, a car pusher oil cylinder and a car pusher guide rail; the hydraulic car pusher comprises a car pusher frame, a reversing oil cylinder, an inclined block type push head and a reversing convex block, wherein two inclined block type push heads are symmetrically arranged on the car pusher frame, the inclined block type push heads are hinged on the car pusher frame and naturally form a vertical state under the action of gravity, and in the state, the inclined block type push heads are attached to the contact inclined plane of the car pusher and the bottom surface of the car pusher; one end of the reversing oil cylinder is fixed on the car pusher frame, the other end of the reversing oil cylinder is connected with the reversing convex block, and when the reversing convex block stretches into the bottom of the inclined block type push head, the inclined block type push head is pushed to one side. According to the invention, dozens of fully loaded kiln cars can be pushed to move on the track; simple structure, convenient maintenance and large thrust. The method is beneficial to the process arrangement of refractory factories and saves investment.
Description
Technical Field
The invention relates to a kiln car pusher, in particular to a tilting block type pusher for a refractory kiln car transfer electric trailer and a use method thereof.
Background
Electric trailers are widely used in refractory plants to transport kiln cars. The kiln car can be filled with refractory bricks or can be empty. According to the process requirement, the kiln car is transported to different sections of calcination, cooling, drying, salt leaching and the like. The kiln car moves on the track of the kiln car, and the electric trailer is provided with a transverse extension rail which is the same as the track of the kiln car. The electric trailer is used for the upper and lower electric trailers of kiln cars. In the electric trailer track, a one-way or two-way hydraulic car puller is arranged. The device is used for pushing the kiln car out of the electric trailer or pulling the kiln car onto the electric trailer.
Due to the small space between the two rails of the electric trailer, the space is usually only about 1200 mm. Two push-pull cylinders, two reversing cylinders and a push head device are required to be arranged. The contact surface between the stop block which causes the contact of the push head and the kiln car end plate is small, and the compression resistance and the tensile resistance are not strong. Kiln cars with a maximum capacity of 3 full refractory bricks are typically pushed and pulled. When more kiln cars need to be pushed, a large-thrust fixed car pusher is arranged on the ground of the electric trailer, which is opposite to the direction of the car, so that the car pushing process is finished. Therefore, equipment is added, and meanwhile, the position of the high-thrust fixed car pusher cannot be arranged with rails, so that the whole process arrangement is not facilitated. The use efficiency of the land in the factory building is reduced.
Disclosure of Invention
The invention aims to provide an inclined block type push head car pusher for a refractory material kiln car transferring electric trailer and a using method thereof, wherein the car pusher is arranged on the electric trailer and is used for pulling the kiln car on a ground track into the electric trailer or pushing the kiln car on the electric trailer onto the ground track; the main part of the push head part adopts an inclined block push head stop block; the inclined block type push head stop block is lifted under the action of gravity, and is put down through the insertion of the reversing cutting block; the contact area between the inclined block type push head stop block and the kiln car is large. Several tens of fully loaded kiln cars can be pushed to move on the track; the car pusher has the advantages of simple structure, convenient maintenance and large thrust. The method is beneficial to the process arrangement of refractory factories and saves investment.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the inclined block type push head car puller for the refractory material kiln car transferring electric trailer comprises a hydraulic car puller, a car puller oil cylinder and a car puller guide rail; the hydraulic car pusher comprises a car pusher frame, a reversing oil cylinder, an inclined block type push head and a reversing convex block, wherein two inclined block type push heads are symmetrically arranged on the car pusher frame, the inclined block type push heads are hinged on the car pusher frame and naturally form a vertical state under the action of gravity, and in the state, the inclined block type push heads are attached to the contact inclined plane of the car pusher and the bottom surface of the car pusher; one end of the reversing oil cylinder is fixed on the car pusher frame, the other end of the reversing oil cylinder is connected with the reversing convex block, and when the reversing convex block stretches into the bottom of the inclined block type push head, the inclined block type push head is pushed to one side.
The inclined block type push head is provided with an inclined block type push head central shaft hole, and the lower part of the inclined block type push head central shaft hole is heavy and the upper part is light; one side of the inclined block type push head is provided with a curved inclined plane which is in smooth transition from bottom to top, the inclined plane is an inclined block type push head pressure head collision surface, the bottom of the inclined block type push head is provided with two inclined planes which are respectively an inclined block type push head contact inclined plane with a car pusher and an inclined block type push head reversing convex block guiding inclined plane, the two inclined planes are in smooth transition, one end face of the inclined block type push head is perpendicular to a central shaft hole of the inclined block type push head, and the end face is an inclined block type push head push car plane.
And the two sides of the car pusher frame are provided with car pusher guide wheels.
The car pusher hydraulic station is also included.
The application method of the inclined block type push head car pusher for the electric trailer for transferring the refractory material kiln car comprises the following steps:
1) The pushing process comprises the following steps: starting a car pusher hydraulic station, controlling a reversing oil cylinder to enable a reversing convex block to extend out, enabling the reversing convex block to move to the lower part of a pulling car inclined block type push head, and enabling the pulling car inclined block type push head to be in a lifting state due to the action of gravity and enabling the pulling car inclined block type push head to be in a putting down state; controlling an engine oil cylinder of the trolley to extend out, and driving the hydraulic trolley to move to one side by the engine oil cylinder of the trolley, and driving the kiln car to move by a trolley inclined block type push head on the hydraulic trolley to reach a specified stroke; the engine oil cylinder of the trolley is retracted, the collision surface of the inclined block type push head pressure head of the inclined block type push head of the trolley collides with the kiln car, and the inclined block type push head of the trolley is pressed down, so that the hydraulic car puller returns to the original position under the condition of not driving the kiln car; the whole cart is completed;
2) And (3) a pulling process: starting a car pusher hydraulic station, controlling a reversing oil cylinder to enable a reversing convex block to extend out and move to the lower part of a car pusher inclined block type push head, wherein the car puller inclined block type push head is in a lifting state due to the action of gravity, and the car pusher inclined block type push head is in a lowering state; controlling an engine oil cylinder of the trolley to extend out, and driving the hydraulic trolley to move by an oil cylinder of the trolley to reach a specified stroke; in the process, the collision surface of the inclined block type push head pressure head of the pull car inclined block type push head collides with the kiln car, and the pull car inclined block type push head is pressed down, so that the hydraulic car pusher reaches a specified position under the condition of not driving the kiln car; then the engine oil cylinder of the trolley is retracted, and the trolley pulling inclined block type push head on the hydraulic trolley machine pulls the kiln car to move rightwards until the kiln car is pulled to the electric trailer; the whole pulling action is completed.
Compared with the prior art, the invention has the beneficial effects that:
1) The contact area between the push head of the existing car pusher and the kiln car end plate is small, and the compression resistance and the tensile resistance are not strong. Kiln cars with a maximum capacity of 3 full refractory bricks are typically pushed and pulled. The invention relates to a sloping block type push head car pusher, wherein the main part of the push head part adopts a sloping block type push head stop block. The stop block is lifted by gravity, and the push head stop block is put down by inserting the reversing cut block. The contact area of the push head stop block and the kiln car is large. Several tens of fully loaded kiln cars can be pushed to move on the track.
2) The existing pushing head and reversing device of the car pusher are complex in structure, the pushing head is reversed by adopting a mode of matching a spring with a sliding plate, and the number of parts is large. The failure rate is high. Particularly, the upright spring of the push head is difficult to put down due to the adoption of the spring with large force, and the push head cannot be sprung up to reset due to the fact that the spring with small force is frequently failed. The invention adopts a method for inserting and removing the reversing convex block at the lower part of the inclined block type push head stop block. Effectively avoid the phenomenon that the push head is not in place.
3) The two inclined block type car pusher can be bidirectionally arranged in the kiln car track and is used for pushing or pulling the kiln car in two directions perpendicular to the electric trailer, and the two-way electric car pusher has the characteristics of large pushing force, compact structure, few parts, easiness in maintenance and the like. Is beneficial to the process arrangement of refractory factories and can save the total investment.
Drawings
Fig. 1 is a front view of a bevel block type pusher for a refractory kiln car transfer electric trailer of the present invention.
Fig. 2 is a left side view of a bevel block type pusher for a refractory kiln car transfer electric trailer of the present invention.
Fig. 3 is a top view of a sloping block type pusher for a refractory kiln car transfer electric trailer of the present invention.
Fig. 4 is a front view of a bevel block pusher in accordance with the present invention.
Fig. 5 is a left side view of fig. 4.
In the figure: 1. an electric trailer; 2. kiln car; 3. a hydraulic car pusher; 4. a car pusher cylinder; 5. kiln car tracks; 6. the car pusher hydraulic station; 7. pulling the oblique block type push head; 8. a reversing convex block; 9. inclined block type pushing head of trolley; 10. a reversing oil cylinder; 11. a ground track; 12. car pusher guide rail; 13. guide wheels of the car pusher; 14. the central shaft of the inclined block type push head; 15. oblique block type push head; 16. oblique block type push head material removing hole; 17. inclined block type push head trolley plane; 18. the inclined block type push head presses the collision surface; 19. a central shaft hole of the inclined block type push head; 20. the inclined block type push head is contacted with the inclined surface of the car pusher; 21. the inclined block type push head changes the direction of the convex block leading-in inclined surface.
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
referring to fig. 1-5, the inclined block type push head car puller for the refractory kiln car transfer electric trailer comprises a hydraulic car puller 3, a car puller oil cylinder 4 and a car puller guide rail 12; the hydraulic car pusher 3 comprises a car pusher frame, a reversing oil cylinder 10, an inclined block type push head 15 and a reversing convex block 8, wherein two inclined block type push heads 15 are symmetrically arranged on the car pusher frame, namely a pulling inclined block type push head 7 and a pushing inclined block type push head 9, the inclined block type push heads 15 are hinged on the car pusher frame and naturally form a vertical state under the action of gravity, and in the state, the inclined block type push heads are attached to the contact inclined surface 20 of the car pusher and the bottom surface of the car pusher; one end of the reversing oil cylinder 10 is fixed on the car pusher frame, the other end of the reversing oil cylinder is connected with the reversing convex block 8, and when the reversing convex block 8 stretches into the bottom of the inclined block type push head 15, the inclined block type push head 15 is pushed to one side.
The inclined block type pushing head 15 is provided with an inclined block type pushing head central shaft hole 16, the upper end of the inclined block type pushing head central shaft hole 16 is provided with an inclined block type pushing head material removing hole 16 for reducing the weight of the upper part of the inclined block type pushing head, and the lower part of the inclined block type pushing head central shaft hole 16 is heavy and the upper part is light; one side of the inclined block type push head 15 is provided with a curved inclined plane which is in smooth transition from bottom to top, the inclined plane is an inclined block type push head pressure head collision surface 18, the bottom of the inclined block type push head 15 is provided with two inclined planes which are an inclined block type push head and car pusher contact inclined plane 20 and an inclined block type push head reversing convex block leading-in inclined plane 21 respectively, the two inclined planes are in smooth transition, one end face of the inclined block type push head 15 is perpendicular to an inclined block type push head central shaft hole 16, and the end face is an inclined block type push head push car plane 17.
And the two sides of the car pusher frame are provided with car pusher guide wheels 13. And 3 groups of 6 car pusher guide wheels 13 are arranged on two sides of the car pusher frame and used for pushing a car under heavy load, so as to prevent the instability of an engine oil cylinder of the car.
And a car puller hydraulic station 6. The car puller hydraulic station 6 is fixed at a convenient position on the electric trailer 1 and is connected with the car puller oil cylinder 4 and the reversing oil cylinder 10 through hydraulic hoses.
The hydraulic car puller 3 is arranged in a kiln car track 5 on the electric trailer 1, and a car puller guiding track 12 is welded and fixed on a steel plate on the electric trailer 1. The car pusher oil cylinder 4 is arranged in the middle of the car pusher guide rail 12, one end of the car pusher oil cylinder 4 is fixed on a steel plate of the electric trailer 1, the other end of the car pusher oil cylinder is connected with the head of the hydraulic car pusher frame, the car pusher oil cylinder 4 pushes the car pusher frame to advance or retreat along the car pusher guide rail 12, and the hydraulic car pusher 3 walks on the car pusher guide rail 12.
Two inclined block type push head central shafts 14 are arranged on the frame of the car pusher, inclined block type push head central shaft holes 16 are formed in the inclined block type push heads 15, and the inclined block type push heads 15 are connected with the frame of the car pusher through the inclined block type push head central shafts 14.
The central shaft 14 of the inclined block type push head passes through the central shaft hole 16 of the inclined block type push head, and the inclined block type push head 15 has a heavy lower part and a light upper part, so that the inclined block type push head and the car pusher contact inclined plane 20 are attached to the bottom plate of the car pusher in a natural state. At this time, the inclined block type push head 15 is in a lifted state, and the inclined block type push head trolley plane 17 is at a high position, so that the kiln car 2 can be pushed.
The reversing convex block 8 is arranged at the bottom of the inclined block type push head 15, and the reversing oil cylinder 10 can push the reversing convex block 8 to slide into the lower part of the inclined block type push head and car pusher contact inclined plane 20 through the inclined block type push head reversing convex block guide inclined plane 21, so that the inclined block type push head 15 tilts to one side around the inclined block type push head central shaft 14.
The invention relates to an inclined block type push head car pusher for a refractory material kiln car transferring electric trailer, which is used for pulling 1 kiln car 2 on a ground track into an electric trailer 1 or pushing the kiln car 2 on the electric trailer 1 onto a ground track 11 and pushing a string of kiln cars 2 to advance along the direction of the ground track 11.
Referring to fig. 2, two hydraulic car pushers 3 are arranged in a kiln car track 5 in a bidirectional manner, and the use method of pushing out and pulling up the kiln car 2 on the electric trailer 1 by taking the left hydraulic car pushers in fig. 2 as an example is as follows:
1) The pushing process comprises the following steps: starting a car puller hydraulic station 6, controlling a reversing oil cylinder 10 to enable a left reversing convex block 8 to extend, enabling the reversing convex block 8 to move to the lower part of a left pulling inclined block type push head 7, and enabling the left pulling inclined block type push head 9 to be in a lifting state due to the action of gravity and enabling the left pulling inclined block type push head 7 to be in a lowering state; the car pusher oil cylinder 4 is controlled to extend, the car pusher oil cylinder 4 drives the hydraulic car pusher 3 to move leftwards, and the left car pusher inclined block type push head 9 on the car pusher pushes the kiln car 2 to move leftwards until a specified stroke is reached; the car pusher oil cylinder 4 is retracted, the inclined block type push head pressure head collision surface 18 of the left side car pusher inclined block type push head 9 collides with the kiln car 2, and as the inclined block type push head pressure head collision surface 18 is a curved inclined surface which is smoothly transited from bottom to top, the contact between the kiln car 2 and the inclined block type push head pressure head collision surface 18 is sliding contact, the left side car pusher inclined block type push head 9 is pressed in the process of relative movement, so that the hydraulic car pusher 3 returns to the original position under the condition of not driving the kiln car 2; the whole cart is completed.
2) And (3) a pulling process: starting a car pusher hydraulic station 6, controlling a reversing oil cylinder 10 to extend a left reversing convex block 8 and move to the lower part of a left car oblique block type push head 9, wherein the left car oblique block type push head 7 is in a lifting state under the action of gravity, and the left car oblique block type push head 9 is in a lowering state; the car pusher oil cylinder 4 is controlled to extend out, and the car pusher oil cylinder 4 drives the hydraulic car pusher 3 to move leftwards to reach a specified stroke; in the process, the inclined block type push head pressure head collision surface 18 of the inclined block type push head 7 of the left pull car collides with the kiln car 2, and the inclined block type push head 7 of the left pull car is pressed down, so that the hydraulic car pusher 3 reaches a specified position under the condition of not driving the kiln car 2; then the car puller oil cylinder 4 is retracted, and the left car puller inclined block type push head 7 on the car puller pulls the kiln car 2 to move rightwards until the kiln car 2 is pulled onto the electric trailer 1; the whole pulling action is completed.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (5)
1. The inclined block type push head car puller for the refractory material kiln car transferring electric trailer comprises a hydraulic car puller, a car puller oil cylinder and a car puller guide rail; the hydraulic car pusher is characterized by comprising a car pusher frame, a reversing oil cylinder, inclined block type push heads and reversing convex blocks, wherein the two inclined block type push heads are symmetrically arranged on the car pusher frame and are hinged to the car pusher frame and naturally form a vertical state under the action of gravity, and in the state, the inclined block type push heads are attached to the contact inclined plane of the car pusher and the bottom surface of the car pusher; one end of the reversing oil cylinder is fixed on the car pusher frame, the other end of the reversing oil cylinder is connected with the reversing convex block, and when the reversing convex block stretches into the bottom of the inclined block type push head, the inclined block type push head is pushed to one side.
2. The inclined block type push head car pusher for the refractory kiln car transferring electric trailer according to claim 1, wherein the inclined block type push head is provided with an inclined block type push head central shaft hole, and the lower part of the inclined block type push head central shaft hole is heavy and the upper part is light; one side of the inclined block type push head is provided with a curved inclined plane which is in smooth transition from bottom to top, the inclined plane is an inclined block type push head pressure head collision surface, the bottom of the inclined block type push head is provided with two inclined planes which are respectively an inclined block type push head contact inclined plane with a car pusher and an inclined block type push head reversing convex block guiding inclined plane, the two inclined planes are in smooth transition, one end face of the inclined block type push head is perpendicular to a central shaft hole of the inclined block type push head, and the end face is an inclined block type push head push car plane.
3. The inclined block type pusher for a refractory kiln car transfer electric trailer according to claim 2, wherein pusher guide wheels are arranged on two sides of the pusher frame.
4. The inclined block type pusher for a refractory kiln car transfer electric trailer of claim 3, further comprising a pusher hydraulic station.
5. The method for using the inclined block type push head car pusher for the refractory kiln car transferring electric trailer as claimed in claim 4, which is characterized by comprising the following steps:
1) The pushing process comprises the following steps: the two inclined block type push heads are respectively a trolley inclined block type push head and a trolley inclined block type push head, a trolley hydraulic station is started, a reversing oil cylinder is controlled to enable a reversing convex block to extend out, the reversing convex block moves to the lower part of the trolley inclined block type push head, at the moment, the trolley inclined block type push head is in a lifting state due to the action of gravity, and the trolley inclined block type push head is in a lowering state; controlling an engine oil cylinder of the trolley to extend out, and driving the hydraulic trolley to move to one side by the engine oil cylinder of the trolley, and driving the kiln car to move by a trolley inclined block type push head on the hydraulic trolley to reach a specified stroke; the trolley oil cylinder is retracted, the collision surface of the inclined block type push head pressure head of the inclined block type push head of the trolley collides with the kiln car, and the inclined block type push head of the trolley is pressed down, so that the hydraulic car puller returns to the original position under the condition of not driving the kiln car; the whole cart is completed;
2) And (3) a pulling process: starting a car pusher hydraulic station, controlling a reversing oil cylinder to enable a reversing convex block to extend out and move to the lower part of a car pusher inclined block type push head, wherein the car puller inclined block type push head is in a lifting state due to the action of gravity, and the car pusher inclined block type push head is in a lowering state; controlling an engine oil cylinder of the trolley to extend out, and driving the hydraulic trolley to move by an oil cylinder of the trolley to reach a specified stroke; in the process, the collision surface of the inclined block type push head pressure head of the pull car inclined block type push head collides with the kiln car, and the pull car inclined block type push head is pressed down, so that the hydraulic car pusher reaches a specified position under the condition of not driving the kiln car; then the engine oil cylinder of the trolley is retracted, and the trolley pulling inclined block type push head on the hydraulic trolley machine pulls the kiln car to move rightwards until the kiln car is pulled to the electric trailer; the whole pulling action is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374114.2A CN108068840B (en) | 2017-12-19 | 2017-12-19 | Inclined block type push head car pusher for refractory material kiln car transfer electric trailer and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374114.2A CN108068840B (en) | 2017-12-19 | 2017-12-19 | Inclined block type push head car pusher for refractory material kiln car transfer electric trailer and use method |
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| CN108068840A CN108068840A (en) | 2018-05-25 |
| CN108068840B true CN108068840B (en) | 2023-09-19 |
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| CN114852123B (en) * | 2022-06-27 | 2023-12-22 | 江苏沃力菲电子科技有限公司 | Push head assembly, push section and push machine |
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| CN203496933U (en) * | 2013-08-08 | 2014-03-26 | 江苏中矿科汇矿业科技有限公司 | Fixed-point lifting device for dispatching mine cart |
| CN205220668U (en) * | 2015-12-07 | 2016-05-11 | 贵州修文坤泰绿色有限公司 | A trailer for driving kiln car motion |
| CA2933213A1 (en) * | 2016-02-27 | 2016-08-15 | Usnr/Kockums Cancar Company | Kiln cart pusher |
| CN205571371U (en) * | 2016-04-12 | 2016-09-14 | 武钢集团昆明钢铁股份有限公司 | A propelling movement machine for continuous casting square billet is carried |
| CN107328243A (en) * | 2017-08-11 | 2017-11-07 | 中冶焦耐(大连)工程技术有限公司 | A kind of electric trailer tracks positioned correcting device and method |
| CN207737298U (en) * | 2017-12-19 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | Refractory material kiln car transports electric trailer and is cut somebody's hair car puller with sloping block type |
-
2017
- 2017-12-19 CN CN201711374114.2A patent/CN108068840B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203496933U (en) * | 2013-08-08 | 2014-03-26 | 江苏中矿科汇矿业科技有限公司 | Fixed-point lifting device for dispatching mine cart |
| CN205220668U (en) * | 2015-12-07 | 2016-05-11 | 贵州修文坤泰绿色有限公司 | A trailer for driving kiln car motion |
| CA2933213A1 (en) * | 2016-02-27 | 2016-08-15 | Usnr/Kockums Cancar Company | Kiln cart pusher |
| CN205571371U (en) * | 2016-04-12 | 2016-09-14 | 武钢集团昆明钢铁股份有限公司 | A propelling movement machine for continuous casting square billet is carried |
| CN107328243A (en) * | 2017-08-11 | 2017-11-07 | 中冶焦耐(大连)工程技术有限公司 | A kind of electric trailer tracks positioned correcting device and method |
| CN207737298U (en) * | 2017-12-19 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | Refractory material kiln car transports electric trailer and is cut somebody's hair car puller with sloping block type |
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| CN108068840A (en) | 2018-05-25 |
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