CN102358058B - Hydraulic coal bar machine - Google Patents
Hydraulic coal bar machine Download PDFInfo
- Publication number
- CN102358058B CN102358058B CN201110305098.8A CN201110305098A CN102358058B CN 102358058 B CN102358058 B CN 102358058B CN 201110305098 A CN201110305098 A CN 201110305098A CN 102358058 B CN102358058 B CN 102358058B
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- CN
- China
- Prior art keywords
- push rod
- rod
- gripper shoe
- oil cylinder
- bar machine
- 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.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 32
- 239000003921 oil Substances 0.000 claims description 46
- 238000007906 compression Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 235000009854 Cucurbita moschata Nutrition 0.000 description 1
- 240000001980 Cucurbita pepo Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000020354 squash Nutrition 0.000 description 1
Images
Abstract
The invention relates to a hydraulic coal bar machine. The hydraulic coal bar machine is mainly used for solving the technical problem that normal production is influenced by the deformation of a piston rod easily caused by a traditional hydraulic coal bar machine. The technical scheme is that the hydraulic coal bar machine comprises an integrated base (22), more than three supporting plates (5) and a pushing rod, wherein a charging device (6) is mounted between two adjacent supporting plates (5) at the front end; a pushing rod through hole, in which the pushing rod is inserted, is formed in the middle of each of the supporting plates (5); more than two connecting rod through holes are correspondingly formed around the pushing rod through hole; from back to forth, the pushing rod which is formed by fixedly connecting a front pushing rod (9) and a rear pushing rod (17) respectively passes through the pushing rod through hole formed in the middle of each of the supporting plates and an extruding sleeve (7) and is in clearance fit connection with a sleeve (4) at the front end; and more than two frame connecting rods (10) are fixed after respectively passing through the connecting rod through holes formed on the supporting plates (5). The hydraulic coal bar machine greatly promotes the reliability of products, is conveniently mounted and maintained and is suitable for various powdered coal bar-making processes.
Description
Technical field
The present invention relates to the special equipment of a kind of fine coal rod processed.
Background technology
Machine for producing coal bars is a kind of extrusion principle that utilizes, and will be mixed with the equipment of the coal dust extrusion modling of sodium humate bonding agent, once in the early 1980s of extensive use in the small-sized nitrogen of China, phosphorus, potash fertilizer chemical enterprise.But because its output is little, efficiency is low, be not suitable with large-scale industrial production, be eliminated gradually.Along with rising steadily of current market lump coal price, each nitrogen, phosphorus, potash fertilizer chemical enterprise, under the pressure of the pressure of surviving, are heavily walked again the road of the relatively low type coal gas of cost one after another.The coal rod spiral squeezing type machine for producing coal bars adopting mainly contains 3 kinds of forms such as spiral squeezing type, pneumatic extrusion type and hydraulic pressure squash type, the power of extruding of spiral squeezing type machine for producing coal bars is pushed fine coal by helical blade to discharge opening, because only having portion of energy in rotary course, helical blade is converted into axial propelling movement power, in head place, produce to extrude power limited, briquette prod difficult quality is up to standard, and there is the defects such as power consumption is large, failure rate of machinery is high, and complete machine cost is high, consumable accessory consumption is large, production environment is severe.Pneumatic extrusion type machine for producing coal bars is to adopt the cylinder of air compressor to push the work forward, as Shifeng District, zhuzhou, hunan province city Zhou Jia pool casual household's No. 2 Wang Guang is better than " high-efficiency energy-saving pneumatic extrusion type machine for producing coal bars " (notification number: CN1903557 of application on July 31st, 2006 patent of invention, number of patent application: 200610032043.3), it discloses a kind of machine for producing coal bars that adopts Pneumatic extrusion mode to operate, because its extruding promotes the motive force of cylinder from the compressed air of air compressor, and the maximum pressure that cylinder can bear is conventionally in 1Mpa; Be subject to the restriction of its pressure, the cylinder bore of the energy-saving pneumatic extrusion type machine for producing coal bars that production capacity is 3～4t/h reaches 600mm conventionally, and the cylinder bore of the energy-saving pneumatic extrusion type machine for producing coal bars that production capacity is 5～8t/h reaches 700mm conventionally; But be subject to the condition restriction such as the use material of cylinder and manufacturing and processing equipment, the cylinder manufacture difficulty that maximum gauge is greater than 700mm is large, and cost is high; And energy-saving pneumatic extrusion type machine for producing coal bars need be equipped with the corollary equipments such as screw-rod air compressor, air accumulator and gs-oil separator, subscriber equipment cost and maintenance cost have greatly been increased.And because head is divided into left and right two parts, tens discharging sleeves are housed between left head and right head, for guaranteeing the correct assembling of discharging sleeve in the middle of left head and right head, require the tolerance of pitch-row between left head and right head assembling discharging sleeve ground reference hole to be ± 0.025mm, required precision is very high, its processing and assembling have been put forward to very high requirement, general common metal cutting processing mechanical apparatus cannot reach its requirement, need to adopt the processing of numerical control metal cutting processing mechanical apparatus, cause processing cost high, be difficult to realize normal production, operate also very inconvenient.This application people used again hydraulic transmission mode afterwards instead, and on December 04th, 2007, applied for utility model patent " efficient energy-saving hydraulic coal rod squeezer " (notification number: CN201128243, number of patent application: 200720065305.6), it comprises circular cylinder body, be placed in pressurizing unit in circular cylinder body, be arranged at the head in circular cylinder body exit, pressurizing unit adopts fluid pressure drive device, is controlled at work in cylindrical shell comes and goes rectilinear motion by control device for hydraulic system.Though effect improves to some extent, because it is to adopt single cylinder list piston form to drive, because the distance of operation is longer, piston rod is easily out of shape.Impact is normal produces, and machinery is easily damaged, by the experiment of 2 years, is also difficult to by realizing industrialization on this technical scheme basis.
Summary of the invention
For solving technique scheme in the technical problem existing aspect practical application, the present invention is directed to prior art and carried out improvement technology, provide a kind of operation to use convenient, the more rational hydraulic coal bar machine of structure.
The technical solution adopted for the present invention to solve the technical problems is: comprise the pressurizing unit being placed in circular cylinder body, the head that is arranged at circular cylinder body exit and fluid pressure drive device, it also comprises 22,3 above gripper shoe 5, stand connecting rod 10, compression sleeve 7 and push rods of an overall base, on overall base 22, be longitudinally fixed with more than 3 gripper shoe bases 23, each piece gripper shoe 5 is packed in respectively on gripper shoe base 23; In 2 adjacent gripper shoes of front end 5, feeding device 6 is installed, with gripper shoe 5 Joints of the affixed piston cylinder adpting flange of feeding device 63 with front end, 2nd piece gripper shoe 5 Joints adjacent with front end gripper shoe 5 with the affixed compression sleeve 7 of feeding device 6, and the sleeve 4 matching with push rod at the interior suit of piston cylinder adpting flange 3, at the front end of sleeve 4, coordinate and be fixedly mounted with head 1; The push rod through hole of suit push rod is set at the middle part of every gripper shoe 5, simultaneously, around push rod through hole, correspondence is provided with more than 2 connecting rod through holes, by the affixed push rod forming of front push rod 9 and rear push-rod 17, by the backward front push rod through hole arranging through each piece gripper shoe middle part respectively and 4 one-tenth movable cooperations of compression sleeve 7 and front end sleeve, connected, the rear end of push rod is connected with oil cylinder 21, and 2 above stand connecting rod 10 are passed respectively the connecting rod through hole arranging in gripper shoe 5 and are fixed.
Also compression sleeve 7 can be arranged in the push rod through hole of the 2nd gripper shoe, and be fixedly mounted with gland 8 in the rear end of compression sleeve 7 and the 2nd gripper shoe.
Also push rod adpting flange 12 before can arranging in front push rod connector 11 rear ends of front push rod 9, the rear push-rod adpting flange 14 matching with front push rod adpting flange 12 in the front end setting of rear push-rod 17, front push rod adpting flange 12 matches affixed with rear push-rod adpting flange 14.And be equipped with push rod sliding sleeve 15 near the junction of front push rod 9 and rear push-rod 17; Also oiling device 16 can be set on push rod sliding sleeve 15.
The link 18 of putting back-end adopts flange arrangement to match with the oil cylinder link flange 19 of oil cylinder 21 front ends and is fixedly connected with, on oil cylinder 21, be provided with oil path in oil cylinder connectivity port 20, on oil cylinder pedestal 25, set firmly oil cylinder bracing frame 26, oil cylinder 21 is fixedly mounted on oil cylinder bracing frame 26, and oil cylinder 21 front portions are sleeved in the gripper shoe of rearmost end.
The present invention's hoop 2 that also can the periphery engage sleeves between head 1 and sleeve 4 be installed.Described fluid pressure drive device comprises oil cylinder, choke valve, solenoid directional control valve, overflow valve, cooler, pump, fuel tank, motor air filter, net filter oil ga(u)ge, net filter, motor, pressure meter switch, Pressure gauge, counter and journey controller, and high pressure liquid force feed is provided by hydraulic oil pumping plant.
Beneficial effect of the present invention is: it has solved the various deficiencies that single cylinder list piston actuated in use exists well, by a plurality of gripper shoes are set, and lead and fix by 2 above stand connecting rod, can solve preferably piston rod is easily out of shape and the normal problem of producing or causing the aspects such as mechanical failure of impact, greatly improved the unfailing performance of product, also easily installation and maintenance.It is applicable to each big-and-middle-sized chemical industry, steam power plant, smelting, pottery, coal gas enterprise fine coal system rod technique.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention;
Fig. 2 is cross-sectional view of the present invention;
Fig. 3 is control device for hydraulic system fundamental diagram of the present invention.
In figure: 1-head, 2-clip, 3-piston cylinder adpting flange, 4-sleeve, 5-gripper shoe, 6-feeding device, 7-compression sleeve, 8-gland, push rod before 9-, 10-stand connecting rod, push rod connector before 11-, push rod adpting flange before 12-, 14-rear push-rod adpting flange, 15-push rod sliding sleeve, 16-oiling device, 17-rear push-rod, the rear end link of 18-push rod, 19-oil cylinder link flange, 20-oil path in oil cylinder connectivity port, 21-oil cylinder, 22-pedestal, 23-gripper shoe base, 24-bolt, 25-oil cylinder pedestal, 26-oil cylinder bracing frame.
The specific embodiment
Embodiment 1: as shown in Figures 1 to 3, the present invention includes 22,3 above gripper shoe 5, stand connecting rod 10, compression sleeve 7 and push rod and fluid pressure drive devices of an overall base, on overall base 22, be longitudinally fixed with more than 3 gripper shoe bases 23, each piece gripper shoe 5 is packed in respectively on gripper shoe base 23; In 2 adjacent gripper shoes of front end 5, feeding device 6 is installed, with gripper shoe 5 Joints of the affixed piston cylinder adpting flange of feeding device 63 with front end, 2nd piece gripper shoe 5 Joints adjacent with front end gripper shoe 5 with the affixed compression sleeve 7 of feeding device 6, and the sleeve 4 matching with push rod at the interior suit of piston cylinder adpting flange 3, at the front end of sleeve 4, coordinate and be fixedly mounted with head 1; The push rod through hole of suit push rod is set at the middle part of every gripper shoe 5, simultaneously, around push rod through hole, correspondence is provided with more than 2 connecting rod through holes, by the affixed push rod forming of front push rod 9 and rear push-rod 17, by the backward front push rod through hole arranging through each piece gripper shoe middle part respectively and 4 one-tenth movable cooperations of compression sleeve 7 and front end sleeve, connected, the rear end of push rod is connected with oil cylinder 21, and 2 above stand connecting rod 10 are passed respectively the connecting rod through hole arranging in gripper shoe 5 and are fixed.By a plurality of gripper shoes are set, and lead and fix by 2 above stand connecting rod, can solve preferably piston rod and easily be out of shape and the normal problem of producing or causing the aspects such as mechanical failure of impact, greatly improve the unfailing performance of product, also easily installation and maintenance.Consult Fig. 1 to Fig. 3.
Embodiment 2, and the present invention also can be arranged on compression sleeve 7 in the push rod through hole of the 2nd gripper shoe, and are fixedly mounted with gland 8 in the rear end of compression sleeve 7 and the 2nd gripper shoe.Consult Fig. 1 to Fig. 3, all the other are with embodiment 1.
Embodiment 3, push rod adpting flange 12 before the present invention also can arrange in front push rod connector 11 rear ends of front push rod 9, the rear push-rod adpting flange 14 matching with front push rod adpting flange 12 in the front end setting of rear push-rod 17, front push rod adpting flange 12 matches affixed with rear push-rod adpting flange 14.And be equipped with push rod sliding sleeve 15 near the junction of front push rod 9 and rear push-rod 17; Also oiling device 16 can be set on push rod sliding sleeve 15.Consult Fig. 1 to 3, all the other same above-described embodiments.
Embodiment 4, the link 18 of putting back-end of the present invention adopts flange arrangement to match with the oil cylinder link flange 19 of oil cylinder 21 front ends and is fixedly connected with, on oil cylinder 21, be provided with oil path in oil cylinder connectivity port 20, on oil cylinder pedestal 25, set firmly oil cylinder bracing frame 26, oil cylinder 21 is fixedly mounted on oil cylinder bracing frame 26, and oil cylinder 21 front portions are sleeved in the gripper shoe of rearmost end.Consult Fig. 1 to 3, all the other same above-described embodiments.
Embodiment 6, fluid pressure drive device of the present invention comprises oil cylinder, choke valve, solenoid directional control valve, overflow valve, cooler, pump, fuel tank, motor air filter, net filter oil ga(u)ge, net filter, motor, pressure meter switch, Pressure gauge, counter and journey controller, and high pressure liquid force feed is provided by hydraulic oil pumping plant.Consult Fig. 1 to 3, all the other same above-described embodiments.
Claims (8)
1. a hydraulic coal bar machine, comprise the pressurizing unit being placed in circular cylinder body, the head that is arranged at circular cylinder body exit and fluid pressure drive device, it is characterized in that: it comprises an overall base (22), 3 above gripper shoe (5), stand connecting rod (10), compression sleeve (7) and push rods, on overall base (22), be longitudinally fixed with more than 3 gripper shoe bases (23), each piece gripper shoe (5) is packed in respectively on gripper shoe base (23); In 2 adjacent gripper shoes of front end (5), feeding device (6) is installed, with gripper shoe (5) Joint of the affixed piston cylinder adpting flange (3) of feeding device (6) with front end, 2nd piece gripper shoe (5) Joint adjacent with front end gripper shoe (5) with the affixed compression sleeve (7) of feeding device (6), and in piston cylinder adpting flange (3) sleeve (4) that matches with push rod of suit, in the front end cooperation of sleeve (4), be fixedly mounted with head (1); The push rod through hole of suit push rod is set at the middle part of every gripper shoe (5), simultaneously, around push rod through hole, correspondence is provided with more than 2 connecting rod through holes, by front push rod (9), by the backward front push rod through hole arranging through each piece gripper shoe middle part respectively and compression sleeve (7), become movable cooperation to connect with the affixed push rod forming of rear push-rod (17) with front end sleeve (4), the rear end of push rod is connected with oil cylinder (21), and 2 above stand connecting rod (10) are passed respectively the upper connecting rod through hole arranging of gripper shoe (5) and are fixed.
2. hydraulic coal bar machine according to claim 1, is characterized in that: compression sleeve (7) is arranged in the push rod through hole of the 2nd gripper shoe, and is fixedly mounted with gland (8) in the rear end of compression sleeve (7) and the 2nd gripper shoe.
3. hydraulic coal bar machine according to claim 1, it is characterized in that: front push rod connector (11) rear end at front push rod (9) is provided with front push rod adpting flange (12), front end at rear push-rod (17) is provided with the rear push-rod adpting flange (14) matching with front push rod adpting flange (12), and front push rod adpting flange (12) matches affixed with rear push-rod adpting flange (14).
4. hydraulic coal bar machine according to claim 1, is characterized in that: near the junction of front push rod (9) and rear push-rod (17), be equipped with push rod sliding sleeve (15).
5. hydraulic coal bar machine according to claim 4, is characterized in that: oiling device (16) is set on push rod sliding sleeve (15).
6. hydraulic coal bar machine according to claim 1, it is characterized in that: the link of putting back-end (18) adopts flange arrangement to match with the oil cylinder link flange (19) of oil cylinder (21) front end and is fixedly connected with, on oil cylinder (21), be provided with oil path in oil cylinder connectivity port (20), on oil cylinder pedestal (25), set firmly oil cylinder bracing frame (26), it is upper that oil cylinder (21) is fixedly mounted on oil cylinder bracing frame (26), and oil cylinder (21) front portion is sleeved in the gripper shoe of rearmost end.
7. hydraulic coal bar machine according to claim 1, is characterized in that: the hoop (2) that is installed of the periphery engage sleeves between head (1) and sleeve (4).
8. hydraulic coal bar machine according to claim 1, it is characterized in that: described fluid pressure drive device comprises oil cylinder, choke valve, solenoid directional control valve, overflow valve, cooler, pump, fuel tank, motor air filter, net filter oil ga(u)ge, net filter, motor, pressure meter switch, Pressure gauge, counter and journey controller, and high pressure liquid force feed is provided by hydraulic oil pumping plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110305098.8A CN102358058B (en) | 2011-10-11 | 2011-10-11 | Hydraulic coal bar machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110305098.8A CN102358058B (en) | 2011-10-11 | 2011-10-11 | Hydraulic coal bar machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102358058A CN102358058A (en) | 2012-02-22 |
| CN102358058B true CN102358058B (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110305098.8A Expired - Fee Related CN102358058B (en) | 2011-10-11 | 2011-10-11 | Hydraulic coal bar machine |
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| Country | Link |
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| CN (1) | CN102358058B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE684338C (en) * | 1936-10-04 | 1939-11-25 | Schloemann Akt Ges | Horizontal hydraulic metal extrusion press |
| WO1992019435A1 (en) * | 1991-04-25 | 1992-11-12 | Wk Worek Kunststofftechnik Gmbh | Paste extruder |
| US5346713A (en) * | 1993-01-21 | 1994-09-13 | Leader Robert G | Method for forming a compressed bar from an oil seed crop |
| CN2488680Y (en) * | 2001-07-11 | 2002-05-01 | 昆明市格雷柏科技有限公司 | Full-automatic hydraulic rod-pressing machine |
| CN201128243Y (en) * | 2007-12-04 | 2008-10-08 | 王光胜 | Efficient energy-saving hydraulic coal rod squeezer |
| CN202264411U (en) * | 2011-10-11 | 2012-06-06 | 湖南力威液压设备有限公司 | Hydraulic coal rod machine |
-
2011
- 2011-10-11 CN CN201110305098.8A patent/CN102358058B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE684338C (en) * | 1936-10-04 | 1939-11-25 | Schloemann Akt Ges | Horizontal hydraulic metal extrusion press |
| WO1992019435A1 (en) * | 1991-04-25 | 1992-11-12 | Wk Worek Kunststofftechnik Gmbh | Paste extruder |
| US5346713A (en) * | 1993-01-21 | 1994-09-13 | Leader Robert G | Method for forming a compressed bar from an oil seed crop |
| CN2488680Y (en) * | 2001-07-11 | 2002-05-01 | 昆明市格雷柏科技有限公司 | Full-automatic hydraulic rod-pressing machine |
| CN201128243Y (en) * | 2007-12-04 | 2008-10-08 | 王光胜 | Efficient energy-saving hydraulic coal rod squeezer |
| CN202264411U (en) * | 2011-10-11 | 2012-06-06 | 湖南力威液压设备有限公司 | Hydraulic coal rod machine |
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| CN102358058A (en) | 2012-02-22 |
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Denomination of invention: Hydraulic coal bar machine Effective date of registration: 20180719 Granted publication date: 20140416 Pledgee: Xiangtan enterprise financing Company limited by guarantee Pledgor: HUNAN LIWEI HYDRAULIC EQUIPMENT Co.,Ltd. Registration number: 2018430000045 |
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Address after: 411228 south of parrot Road, east of Hehua Road, Yisuhe Town, Xiangtan County, Xiangtan City, Hunan Province (68 parrot Road, tianyijingkai District) Patentee after: Hunan Liwei Hydraulic Equipment Co.,Ltd. Address before: Xiangtan County, Hunan province 411228 Xiangtan Yisuhe Begonia Road Power Company Patentee before: HUNAN LIWEI HYDRAULIC EQUIPMENT Co.,Ltd. |
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Date of cancellation: 20200813 Granted publication date: 20140416 Pledgee: Xiangtan enterprise financing Company limited by guarantee Pledgor: HUNAN LIWEI HYDRAULIC EQUIPMENT Co.,Ltd. Registration number: 2018430000045 |
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Denomination of invention: A hydraulic coal rod machine Effective date of registration: 20200904 Granted publication date: 20140416 Pledgee: Xiangtan small and medium sized micro Financing Guarantee Co.,Ltd. Pledgor: Hunan Liwei Hydraulic Equipment Co.,Ltd. Registration number: Y2020980005700 |
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Date of cancellation: 20230720 Granted publication date: 20140416 Pledgee: Xiangtan small and medium sized micro Financing Guarantee Co.,Ltd. Pledgor: Hunan Liwei Hydraulic Equipment Co.,Ltd. Registration number: Y2020980005700 |
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