CN212503717U - Crawler crane for coal mine - Google Patents
Crawler crane for coal mine Download PDFInfo
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- CN212503717U CN212503717U CN202021424211.5U CN202021424211U CN212503717U CN 212503717 U CN212503717 U CN 212503717U CN 202021424211 U CN202021424211 U CN 202021424211U CN 212503717 U CN212503717 U CN 212503717U
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- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 230000000712 assembly Effects 0.000 claims abstract description 4
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- 239000000725 suspension Substances 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 8
- 230000008602 contraction Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses a crawler crane for coal mine, which comprises a working mechanism, a supporting leg mechanism, a swing mechanism, a walking mechanism, a power chamber and a supporting device; the walking mechanism consists of a crawler assembly and a crawler connecting beam; the two crawler assemblies are connected together through the three crawler connecting beams; the front end and the rear end of the walking mechanism are respectively provided with a connecting square box for connecting the supporting leg mechanism; the swing mechanism and the power chamber are both arranged at the upper end of the crawler connecting beam, and the supporting mechanism is arranged in the power chamber; the working mechanism is connected to the slewing mechanism. The utility model discloses can improve efficiency, reduce cost effectively, the safety of protection production personnel and equipment to and alleviate heavy manual labor, can obtain very high economic benefits for coal mine equipment application industry.
Description
Technical Field
The utility model relates to a mining machinery technical field specifically is a crawler crane for coal mine.
Background
Along with the improvement of high-yield and high-efficiency development modes and technologies, the coal mine excavation equipment is gradually enlarged and developed, so that the requirement on mechanical special equipment in the coal mine installation and removal work is increased gradually. The development of the crawler crane for coal mines replaces the prior chain block, cancels heavy physical labor such as manual lifting, pulling, carrying and the like, is mainly used for mounting and withdrawing the whole machine and parts of mechanical equipment of a mining working face, can effectively improve work efficiency, increase yield, reduce cost, reduce loss, protect the safety of production personnel and equipment, reduce heavy physical labor and obtain high economic benefit for coal mines.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a crawler crane for coal mine to solve the problem that proposes among the above-mentioned background art.
A crawler crane for coal mines comprises a working mechanism, a supporting leg mechanism, a swing mechanism, a traveling mechanism, a power chamber and a supporting device;
the walking mechanism consists of a crawler assembly and a crawler connecting beam; the two crawler assemblies are connected together through the three crawler connecting beams;
the front end and the rear end of the travelling mechanism are respectively provided with a connecting square box for connecting the supporting leg mechanism;
the slewing mechanism and the power chamber are both arranged at the upper end of the crawler connecting beam, and the supporting mechanism is arranged in the power chamber;
the working mechanism is connected with the rotating mechanism.
The crawler crane for the coal mine has the preferred scheme that the working mechanism comprises a suspension arm consisting of a basic arm and a telescopic arm, a zipper oil cylinder, a lifting chain and a lifting hook, wherein the telescopic arm is arranged in an inner cavity of the basic arm; a telescopic oil cylinder barrel arranged in the inner cavity of the basic arm is connected with a telescopic oil cylinder piston rod arranged in the inner cavity of the telescopic arm; the zipper oil cylinder is arranged on the upper end surface of the basic arm, one end of a hoisting chain connected with the lifting hook is connected with the oil cylinder, the other end of the hoisting chain is arranged on a chain wheel at the front end of the basic arm, and the hoisting chain is driven to hoist on the chain wheel through the expansion and contraction of the oil cylinder;
the rotary mechanism comprises a rotary base, a rotary support, a rotary flange, an operating platform and a seat;
the rotary base is welded on the crawler connecting beam, the rotary support is connected on the rotary base through a bolt, and the rotary flange is connected on the rotary support through a bolt;
the rotary flange is welded with an installation lug seat, and the tail part of the basic arm is provided with a pin shaft hole which is connected to the installation lug seat through a pin shaft;
the large arm in the middle of the basic arm is provided with a telescopic oil cylinder, the front end of the mounting lug seat is provided with an oil cylinder barrel, and the suspension arm is lifted up through the extension of the oil cylinder.
The power chamber comprises a rear shell, a bottom plate and a supporting device;
the bottom plate is fixed on the crawler connecting beam and is arranged behind the swing mechanism;
the upper end face of the tail end of the rear shell is provided with two openings, and the rear shell is buckled on the bottom plate to form a cavity;
the explosion-proof switch, the cooling fan, the oil tank, the motor, the operating valve, the pump and the supporting device are all fixed on the bottom plate in the cavity through bolts, and the supporting device extends out of the opening and is arranged outside the upper end face of the rear shell.
The crawler crane for the coal mine has the preferable scheme that the supporting device comprises a supporting top inner square box and a supporting top outer square box; the inner square box of the support top is provided with a telescopic oil cylinder piston rod, and the outer square box of the support top is provided with an oil cylinder body; the piston rod extends upwards in the cylinder body of the oil cylinder until the piston rod firmly props against the top plate of the roadway.
The crawler crane for the coal mine has the preferred scheme that the supporting leg mechanism comprises a horizontal supporting leg, a vertical supporting leg and a traction hook;
the flat-extending supporting leg is divided into a flat-extending supporting leg inner square box and a flat-extending supporting leg outer square box; two horizontal extension oil cylinder bodies are arranged in the horizontal extension leg outer square box, a horizontal extension oil cylinder piston rod is arranged in the horizontal extension leg inner square box, and the horizontal extension leg inner square box and the horizontal extension leg outer square box are connected together through an oil cylinder;
the vertical supporting leg is divided into a vertical supporting leg inner square box and a vertical supporting leg outer square box; a vertical oil cylinder piston rod is arranged in the inner square box of the vertical supporting leg, and a vertical oil cylinder body is arranged in the outer square box of the vertical supporting leg; connecting the inner square box of the vertical supporting leg with the outer square box of the vertical supporting leg through an oil cylinder;
the vertical supporting legs are arranged at two ends of the horizontally extending supporting legs, and the horizontally extending supporting leg inner square box and the vertical supporting leg outer square box are welded together; the oil cylinder stretches to realize the extension and retraction of the vertical supporting leg and the horizontal supporting leg;
the traction hook is welded on the outer square box of the flat-extending supporting leg, the lifting chain or the steel wire rope can be connected with the freight flat car through the pin shaft, the traction effect is achieved, and the whole tractor can be used as a tractor.
The crawler crane for the coal mine has the preferable scheme that the suspension arm can be lifted by 30 degrees, and the slewing mechanism can horizontally rotate by 180 degrees.
The crawler crane for the coal mine is preferably applicable to the ground of the coal mine and an underground roadway.
The working process of the crawler crane for the coal mine is as follows: before lifting a heavy object, firstly extending out the supporting leg mechanisms to ensure that the four supporting legs are completely and firmly grounded, and suspending the track assembly in the air, wherein when the ground is a soft ground, sleepers are arranged below the supporting legs to increase the contact area between the supporting legs and the ground; and simultaneously adopting a supporting device to firmly connect the roof; supporting the top: pulling the supporting and jacking control valve, extending the supporting and jacking device upwards until the supporting and jacking device firmly props against the top plate, and then carrying out hoisting operation, if the length of the supporting and jacking device is insufficient and does not contact the top plate, installing a lengthened sleeve on the supporting and jacking device and reliably locking the same until the supporting and jacking device firmly props against the top plate; when the lifting device works, the basic arm and the telescopic arm are matched for use, the telescopic arm control valve is controlled, the telescopic arm is firstly extended out, the suspension arm is rotated to be above a lifted object, the suspension arm is dropped, a lifting chain on the suspension arm is released by extending out of a hydraulic cylinder fixed above the basic arm, the lifted object is bound, the suspension arm is lifted, the lifting chain is contracted, the object is lifted, the suspension arm is rotated to the supporting position of the lifted object, the suspension arm is slowly dropped, the lifting chain is extended out, and the direction and the position of the lifted object are adjusted for placing.
The utility model has the advantages that: compared with the prior art, the utility model discloses a landing leg mechanism when having guaranteed to lift by crane the heavy object the organism does not take place to empty, and the track assembly only is used for the walking. The supporting device is another safety guarantee for guaranteeing the crane to lift the overweight objects, and the machine body does not topple when the supporting device is vertically connected to the top plate to lift the overweight objects. The mode of hoisting the heavy object through the lifting chain and the lifting hook can reduce the labor intensity of operating personnel, greatly improve the working efficiency, prevent the heavy object from falling, and ensure the safety of the operating personnel and the object to be hoisted to be not damaged. To sum up, the utility model discloses can improve efficiency, reduce cost effectively, the safety of protection production personnel and equipment to and alleviate heavy manual labor, can obtain very high economic benefits for coal mine equipment application industry.
Drawings
FIG. 1 is a diagram of a crawler crane for coal mines;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of the connection between the revolving structure and the traveling mechanism;
FIG. 4 is a schematic structural view of a working mechanism;
FIG. 5 is a schematic view of the internal structure of the supporting device;
fig. 6 is a schematic view of the internal structure of the leg mechanism.
In the figure, 1, a working mechanism; 2. a leg mechanism; 3. a swing mechanism; 4. a traveling mechanism; 5. a power chamber; 6. a supporting device; 7. a lamp; 8. a towing hook; 9. a track assembly; 10. a track connecting beam; 11. connecting the square boxes; 12. a base arm; 13. a telescopic arm; 14. a zipper oil cylinder; 15. a hoisting chain; 16. a hook; 17. a large arm; 18. a pin shaft hole; 19 telescopic cylinder barrel; 20. a telescopic oil cylinder piston rod; 21. a rotating base; 22, a rotary support; 23. a rotary flange; 24. an operation table; 25. a seat; 26. mounting an ear seat; 27. a large arm oil cylinder piston rod; 28. a cylinder barrel of the large arm oil cylinder; 29. a rear housing; 30. a base plate; 31. supporting an inner square box; 32 top outer square boxes; 33. supporting a piston rod of the oil cylinder; 34 supporting top cylinder bodies; 35 a flat extending leg; 36. a vertical leg; 37. a square box is arranged in the horizontally extending supporting leg; 38. a horizontally extending outer square box of the supporting leg; 39. a cylinder body of the horizontal extending oil cylinder; 40. a piston rod of the horizontal extension oil cylinder; 41. a vertical support leg inner square box; 42. a vertical leg outer box; 43. a vertical cylinder piston rod; 44. and a vertical oil cylinder body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The crawler crane for the coal mine as shown in the figures 1-6 comprises a working mechanism 1, a supporting leg mechanism 2, a slewing mechanism 3, a travelling mechanism 4, a power chamber 5 and a supporting device 6;
the walking mechanism 4 consists of a crawler belt assembly 9 and a crawler belt connecting beam 10; two crawler assemblies 9 are connected together by three crawler connecting beams 10;
the front end and the rear end of the travelling mechanism 4 are respectively provided with a connecting square box 11 for connecting the supporting leg mechanism 2;
the slewing mechanism 3 and the power chamber 5 are both arranged at the upper end of the crawler connecting beam 10, and the jacking mechanism 6 is arranged in the cavity of the power chamber 5;
the working mechanism 1 is connected to the slewing mechanism 3.
The working mechanism 1 comprises a suspension arm consisting of a basic arm 12 and a telescopic arm 13, a zipper oil cylinder 14, a lifting chain 15 and a lifting hook 16, wherein the telescopic arm 13 is arranged in an inner cavity of the basic arm 12; a telescopic oil cylinder barrel 19 arranged in the inner cavity of the basic arm 12 is connected with a telescopic oil cylinder piston rod 20 arranged in the inner cavity of the telescopic arm 13; a zipper oil cylinder 14 is arranged on the upper end surface of the basic arm 12, one end of a hoisting chain 15 connected with a lifting hook 16 is connected with the oil cylinder, the other end of the hoisting chain is arranged on a chain wheel at the front end of the basic arm 12, and the hoisting chain 15 is driven to hoist on the chain wheel through the expansion and contraction of the oil cylinder;
the slewing mechanism 3 comprises a slewing base 21, a slewing support 22, a slewing flange 23, an operating platform 24 and a seat 25;
the rotary base 21 is welded on the crawler connecting beam 10, the rotary support 22 is connected on the rotary base 21 through bolts, and the rotary flange 23 is connected on the rotary support 22 through bolts;
the rotary flange 23 is welded with an installation lug seat 26, and the tail part of the basic arm is provided with a pin shaft hole 18 which is connected to the installation lug seat 26 through a pin shaft;
the large arm 17 in the middle of the basic arm 12 is provided with a large arm telescopic oil cylinder 27, the front end of the mounting lug seat 26 is provided with a large arm oil cylinder barrel 28, and the suspension arm is lifted up through the extension of the oil cylinder.
The power chamber 5 comprises a rear shell 29, a bottom plate 30 and a supporting device 6;
the bottom plate 30 is fixed on the crawler connecting beam 10 and is arranged behind the swing mechanism 3;
the upper end face of the tail end of the rear shell 29 is provided with two openings, and the rear shell 29 is buckled on the bottom plate 30 to form a cavity;
the explosion-proof switch, the cooling fan, the oil tank, the motor, the operating valve, the pump and the supporting device 6 are all fixed on the bottom plate 30 in the cavity through bolts, and the supporting device 6 extends out of the opening and is arranged outside the upper end face of the rear shell 29.
The supporting device 6 comprises a supporting top inner square box 31 and a supporting top outer square box 32; the supporting top inner square box 31 is provided with a supporting top oil cylinder piston rod 33, and the supporting top outer square box is provided with a supporting top oil cylinder body 34; the piston rod extends upwards in the cylinder body of the oil cylinder until the piston rod firmly props against the top plate of the roadway.
The supporting leg mechanism 2 comprises a flat supporting leg 35, a vertical supporting leg 36 and a towing hook 8;
the flat-extending supporting leg 35 is divided into a flat-extending supporting leg inner square box 37 and a flat-extending supporting leg outer square box 38; two horizontal extension oil cylinder bodies 39 are arranged in the horizontal extension leg outer square box, a horizontal extension oil cylinder piston rod 40 is arranged in the horizontal extension leg inner square box 37, and the horizontal extension leg inner square box 37 and the horizontal extension leg outer square box 38 are connected together through the extension and contraction of the oil cylinders;
the vertical leg 36 is divided into a vertical leg inner box 41 and a vertical leg outer box 42; the vertical leg inner square box 41 is provided with a vertical oil cylinder piston rod 43, and the vertical leg outer square box 42 is provided with a vertical oil cylinder body 44; the vertical supporting leg inner square box 41 and the vertical supporting leg outer square box 42 are connected together through the expansion and contraction of the oil cylinders;
the vertical supporting legs 36 are arranged at two ends of the flat supporting leg 35, and the flat supporting leg inner square box 37 and the vertical supporting leg outer square box 42 are welded together; the oil cylinder is communicated with the oil cylinder to stretch and retract so as to stretch and retract the vertical supporting leg 36 and the horizontal supporting leg 35;
the traction hook 8 is welded on the square box 38 outside the flat-extending supporting leg, and can be connected with a lifting chain or a steel wire rope through a pin shaft to be connected with a freight flat car, so that the traction effect is achieved, and the whole tractor can be used as a tractor.
The suspension arm can be lifted by 30 degrees, and the swing mechanism can horizontally rotate by 180 degrees.
The crawler crane is suitable for coal mine ground and underground roadways.
The working process of the crawler crane for the coal mine is as follows: before lifting a heavy object, extending out the supporting leg mechanism to ensure that the four supporting legs are completely and firmly grounded, suspending the track assembly in the air, and when the ground is a soft ground, putting sleepers on the lower surfaces of the supporting legs to increase the contact area between the supporting legs and the ground; and simultaneously adopting a supporting device to firmly connect the roof; supporting the top: pulling the supporting and jacking control valve, extending the supporting and jacking device upwards until the supporting and jacking device firmly props against the top plate, and then carrying out hoisting operation, if the length of the supporting and jacking device is insufficient and does not contact the top plate, installing a lengthened sleeve on the supporting and jacking device and reliably locking the same until the supporting and jacking device firmly props against the top plate; when the lifting device works, the basic arm and the telescopic arm are matched for use, the telescopic arm control valve is controlled, the telescopic arm is firstly extended out, the suspension arm is rotated to the position above a lifted object, the suspension arm is dropped, a lifting chain on the suspension arm is released by extending out of a hydraulic cylinder fixed above the basic arm, the lifted object is bound, the suspension arm is lifted, the lifting chain is contracted, an object is lifted, the suspension arm is rotated to the formulated position of the lifted object, the suspension arm is slowly dropped, the lifting chain is extended out, and the direction and the installation position of the lifted object are adjusted for placing.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.
Claims (7)
1. The utility model provides a crawler crane for coal mine which characterized in that: comprises a working mechanism, a supporting leg mechanism, a swing mechanism, a walking mechanism, a power chamber and a supporting device;
the walking mechanism consists of a crawler assembly and a crawler connecting beam; the two crawler assemblies are connected together through the three crawler connecting beams;
the front end and the rear end of the travelling mechanism are respectively provided with a connecting square box for connecting the supporting leg mechanism;
the slewing mechanism and the power chamber are both arranged at the upper end of the crawler connecting beam, and the supporting mechanism is arranged in the cavity of the power chamber;
the working mechanism is connected to the slewing mechanism.
2. The crawler crane for coal mines as set forth in claim 1, wherein: the working mechanism comprises a suspension arm consisting of a basic arm and a telescopic arm, a zipper oil cylinder, a suspension chain and a lifting hook, wherein the telescopic arm is arranged in an inner cavity of the basic arm; a telescopic oil cylinder barrel arranged in the inner cavity of the basic arm is connected with a telescopic oil cylinder piston rod arranged in the inner cavity of the telescopic arm; the zipper oil cylinder is arranged on the upper end surface of the basic arm, one end of a hoisting chain connected with the lifting hook is connected with the oil cylinder, the other end of the hoisting chain is arranged on a chain wheel at the front end of the basic arm, and the hoisting chain is driven to hoist on the chain wheel through the expansion and contraction of the oil cylinder;
the rotary mechanism comprises a rotary base, a rotary support, a rotary flange, an operating platform and a seat;
the rotary base is welded on the crawler connecting beam, the rotary support is connected on the rotary base through a bolt, and the rotary flange is connected on the rotary support through a bolt;
the rotary flange is welded with an installation lug seat, and the tail part of the basic arm is provided with a pin shaft hole which is connected to the installation lug seat through a pin shaft;
and a large arm telescopic oil cylinder is arranged on the large arm in the middle of the basic arm, a large arm oil cylinder barrel is arranged at the front end of the mounting lug seat, and the suspension arm is lifted up through the extension of the oil cylinder.
3. The crawler crane for coal mines as set forth in claim 1, wherein: the power chamber comprises a rear shell, a bottom plate and a supporting device;
the bottom plate is fixed on the crawler connecting beam and is arranged behind the swing mechanism;
the upper end face of the tail end of the rear shell is provided with two openings, and the rear shell is buckled on the bottom plate to form a cavity;
the explosion-proof switch, the cooling fan, the oil tank, the motor, the operating valve, the pump and the supporting device are all fixed on the bottom plate in the cavity through bolts, and the supporting device extends out of the opening and is arranged outside the upper end face of the rear shell;
and a lamp is arranged at the top end of the power chamber.
4. The crawler crane for coal mines as set forth in claim 1, wherein: the supporting device comprises a supporting top inner square box and a supporting top outer square box; a supporting top telescopic oil cylinder piston rod is arranged in the supporting top inner square box, and a supporting top oil cylinder body is arranged in the supporting top outer square box; the piston rod extends upwards in the cylinder body of the oil cylinder until the piston rod firmly props against the top plate of the roadway.
5. The crawler crane for coal mines as set forth in claim 1, wherein: the supporting leg mechanism comprises a horizontally extending supporting leg, a vertical supporting leg and a traction hook;
the flat-extending supporting leg is divided into a flat-extending supporting leg inner square box and a flat-extending supporting leg outer square box; two horizontal extension oil cylinder bodies are arranged in the horizontal extension leg outer square box, a horizontal extension oil cylinder piston rod is arranged in the horizontal extension leg inner square box, and the horizontal extension leg inner square box and the horizontal extension leg outer square box are connected together through an oil cylinder;
the vertical supporting leg is divided into a vertical supporting leg inner square box and a vertical supporting leg outer square box; a vertical oil cylinder piston rod is arranged in the inner square box of the vertical supporting leg, and a vertical oil cylinder body is arranged in the outer square box of the vertical supporting leg; connecting the inner square box of the vertical supporting leg with the outer square box of the vertical supporting leg through an oil cylinder;
the vertical supporting legs are arranged at two ends of the horizontally extending supporting legs, and the horizontally extending supporting leg inner square box and the vertical supporting leg outer square box are welded together; the oil cylinder stretches to realize the extension and retraction of the vertical supporting leg and the horizontal supporting leg;
the traction hook is welded on the square box outside the flat-extending supporting leg, the lifting chain or the steel wire rope can be connected with the freight flat car through the pin shaft, the traction effect is achieved, and the whole tractor can be used as a tractor.
6. The crawler crane for coal mines as set forth in claim 2, wherein: the suspension arm can be lifted by 30 degrees, and the swing mechanism can horizontally rotate by 180 degrees.
7. The crawler crane for coal mines as set forth in claim 1, wherein: the crawler crane is suitable for coal mine ground and underground roadways.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021424211.5U CN212503717U (en) | 2020-07-20 | 2020-07-20 | Crawler crane for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021424211.5U CN212503717U (en) | 2020-07-20 | 2020-07-20 | Crawler crane for coal mine |
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| Publication Number | Publication Date |
|---|---|
| CN212503717U true CN212503717U (en) | 2021-02-09 |
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ID=74437445
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021424211.5U Active CN212503717U (en) | 2020-07-20 | 2020-07-20 | Crawler crane for coal mine |
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| CN (1) | CN212503717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117923321A (en) * | 2024-03-25 | 2024-04-26 | 福建华南重工机械制造有限公司 | Multi-degree-of-freedom mining hydraulic arm support type lifting device |
-
2020
- 2020-07-20 CN CN202021424211.5U patent/CN212503717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117923321A (en) * | 2024-03-25 | 2024-04-26 | 福建华南重工机械制造有限公司 | Multi-degree-of-freedom mining hydraulic arm support type lifting device |
| CN117923321B (en) * | 2024-03-25 | 2024-06-11 | 福建华南重工机械制造有限公司 | Multi-degree-of-freedom mining hydraulic arm support type lifting device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220316 Address after: 112700 Tieling Tiaobingshan South Development Zone, Liaoning Province Patentee after: LIAONING XINFENG MINING (Group) Co.,Ltd. Address before: No.1-2, Kaifa South 26th Road, Shenyang Economic and Technological Development Zone, Liaoning Province, 110027 Patentee before: Liaoning Fengde mining (Group) Co.,Ltd. |
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| TR01 | Transfer of patent right |