CN203370608U - Specific pulverizer supported by rolling bearings - Google Patents
Specific pulverizer supported by rolling bearings Download PDFInfo
- Publication number
- CN203370608U CN203370608U CN201320384127.9U CN201320384127U CN203370608U CN 203370608 U CN203370608 U CN 203370608U CN 201320384127 U CN201320384127 U CN 201320384127U CN 203370608 U CN203370608 U CN 203370608U
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- China
- Prior art keywords
- quill shaft
- bearing
- discharge end
- roller bearings
- flour mill
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- 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
- 238000005096 rolling process Methods 0.000 title claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- 235000013312 flour Nutrition 0.000 claims description 40
- 210000004907 gland Anatomy 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 27
- 239000004519 grease Substances 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 239000003082 abrasive agent Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000000227 grinding Methods 0.000 description 7
- 238000005461 lubrication Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 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 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a specific pulverizer supported by rolling bearings. The specific pulverizer comprises a feeding part, a rotating part, a discharging part, a transmission part and a driving part, wherein the rotating part comprises a barrel body, cone end covers arranged on the two ends of the barrel body, a feeding end hollow shaft and a discharging end hollow shaft fixedly which are connected with the cone end covers, wherein the feeding end hollow shaft and the discharging end hollow shaft are respectively provided with the rolling bearings; the upper and lower parts of the rolling bearings are respectively provided with bearing covers and bearing bases, the two ends of the rolling bearings are also respectively provided with seal pressing covers, and spaces formed by the bearing covers, the bearing bases and the seal pressing covers are filled by lubricating greases; one end of the rolling bearing arranged on the discharging end hollow shaft closely abuts against the discharging end hollow shaft, the other end of the rolling bearing arranged on the discharging end hollow shaft is compressed by one end of a top ring sleeved on the discharging end hollow shaft, the discharging end hollow shaft is internally provided with a discharge port, the discharge hole compresses the other end of the top ring, and a driven gear is connected with the top ring; the top ring is connected with the discharging end hollow shaft through a key, and the discharging end hollow shaft is driven to rotate.
Description
Technical field
The utility model relates to a kind of milling equipment, particularly relates to a kind of specific flour mill by roller bearings.
Background technology
At present, in the process of the comprehensive recycling of alumina crust block, adopted flour mill as crushing and grinding equipment.Transmission and the supporting way of the existing grinding machine for the comprehensive recycling of alumina crust block are: main motor drives driving gear after slowing down by decelerator and rotates, driving gear and the engagement of driven gear ring, the drive rotating part rotates, and rotating part is supported by sliding bearing.Wherein, sliding bearing is furnished with the high-low pressure lubrication station, with high pressure jack-up rotating part, in turning course, between base bearing, hollow axle journal and rotating part, forms oil film.
This grinding machine also has following inconvenience and defect at present in structure and use procedure, urgently is further improved:
One, the processing and manufacturing difficulty of spherical bush in sliding bearing needs to be scraped watt in installation process;
Two,, in grinding machine, need to install the pipeline that is connected high-low pressure lubricating oil and cooling water circulation, equipment installation and maintenance complexity between high-low pressure lubrication station and spherical bush;
Three, in the mill running process, easily occur poorly sealedly, rotating part jack-up amount not easily causes the problems such as tile kilning;
Four, the spherical bush repair and replacement more complicated in sliding bearing, maintenance cost is high.
In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but have no for a long time applicable design always, by development, completed, and common product does not have appropriate structure to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of specific flour mill of use roller bearings of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The purpose of this utility model is, overcome the defect that existing grinding machine exists, and provide a kind of specific flour mill of use roller bearings of new structure, technical problem to be solved is to make it by changing hollow axis structure, uses rolling bearing to replace sliding bearing, and use grease lubrication in rolling bearing, compact conformation, easy to maintenance, cost is low, is very suitable for practicality.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of specific flour mill by roller bearings the utility model proposes, it comprises: feeding part, rotating part, output section, running part and drive part; Wherein said rotating part comprises: cylindrical shell, be arranged at respectively the cone end cap at described cylindrical shell two ends, the feed end quill shaft be connected with the described cone end cap of described cylindrical shell one end, and the discharge end quill shaft be connected with the described cone end cap of the described cylindrical shell other end; Described feed end quill shaft is connected with described feeding part, and described discharge end quill shaft is connected with described output section; Be respectively equipped with rolling bearing on described feed end quill shaft and described discharge end quill shaft; Described rolling bearing be respectively equipped with up and down bearing cap and bearing block, also be respectively equipped with sealing gland at the two ends of described rolling bearing; And be filled with lubricating grease in the space formed at described bearing cap, described bearing block and described sealing gland; Wherein, be arranged at an end of the described rolling bearing on described discharge end quill shaft near described discharge end quill shaft, it is tight that the other end is set in a side pressure of the collar on described discharge end quill shaft; Be provided with discharging opening in described discharge end quill shaft, described discharging opening compresses the other end of described collar; The driven gear of described running part is connected with described collar, and described collar is connected with described discharge end quill shaft by key, drives described discharge end quill shaft and rotates.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
The aforesaid specific flour mill by roller bearings, the described rolling bearing wherein be arranged on described discharge end quill shaft is fixed, and the described sealing gland that its two ends arrange is the stiff end sealing gland; The described rolling bearing be arranged on described feed end quill shaft moves about, and the described sealing gland that its two ends arrange is the free end sealing gland.
The aforesaid specific flour mill by roller bearings, the tight described rolling bearing of a side pressure of wherein said collar, the other end and described driven gear, closing, are connected with described discharge end quill shaft by described key in the inside of described collar.
The aforesaid specific flour mill by roller bearings wherein is provided with ring-shaped groove on described sealing gland, in described ring-shaped groove, is filled with lubricating grease.
The aforesaid specific flour mill by roller bearings, wherein said bearing cap and described bearing block are to locate by alignment pin, and are bolted fastening.
The aforesaid specific flour mill by roller bearings, one end of wherein said discharge end quill shaft is to be connected with described cone end cap by bolt, described discharging opening is to be connected with the other end of described discharge end quill shaft by bolt, and compresses described discharge end quill shaft and described collar.
The aforesaid specific flour mill by roller bearings, wherein be provided with the shell liner of rare earth alloy in the inboard of described cylindrical shell, be provided with the end cap liner plate of rare earth alloy on a side of described cylindrical shell at described cone end cap; Also be provided with the lifting strip of high-abrasive material in the inboard of described cylindrical shell, described end cap liner plate is with projection.
The aforesaid specific flour mill by roller bearings, wherein said bearing cap is provided with lubricating cup.
The aforesaid specific flour mill by roller bearings, wherein said running part also comprises: decelerator and driving gear; Described driving gear is connected with the output of described decelerator, and meshes with described driven gear.
The aforesaid specific flour mill by roller bearings, wherein said drive part comprises: main motor reaches drive unit at a slow speed; The output of described drive unit at a slow speed is connected with the input of described main motor, and the output of described main motor is connected with the input of described decelerator.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of specific flour mill by roller bearings of the utility model at least has following advantages and beneficial effect:
One, the rotating part of the utility model flour mill adopts roller bearings, and wherein rolling bearing can be selected standard component, reduces the cost of equipment, and the lubricated employing grease lubrication of rolling bearing is simple in structure, convenient for installation and maintenance.
Two, flour mill of the present utility model is without the high-low pressure lubrication station, and the cooling water circulation pipeline, reduced cost, Whole Equipment simple in structure.
Three, the driven gear of the utility model flour mill by bolt, will move and transmission of torque to collar, collar will move and the quill shaft of transmission of torque to discharge end by key again, secure and reliable connection, and the centering that key connects is good, mounting or dismounting are convenient, positioning precision is higher, can bear certain impact.
Four, the rolling bearing two ends of the utility model flour mill all are provided with sealing gland, and have ring-shaped groove on sealing gland, are filled with lubricating grease in ring-shaped groove, can the lift-off seal effect.
Five, the gear wheel of the utility model flour mill is arranged on the hollow axle journal of discharge end, is different from existing grinding machine and is arranged on the structure on cylindrical shell, is meeting under the prerequisite of using, and has saved occupation of land space and the equipment consumptive material of equipment.
In sum, the utility model has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, and for above and other purpose of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model with specific flour mill one preferred embodiment of roller bearings.
Fig. 2 is the partial sectional view of the utility model with the rotating part of the specific flour mill of roller bearings.
10: feeding part 20: rotating part
21: cylindrical shell 22: shell liner
23: cone end cap 24: the end cap liner plate
25: feed end quill shaft 26: the discharge end quill shaft
27: collar 28: key
29: discharging opening 30: output section
40: base bearing 41: rolling bearing
42: bearing cap 43: bearing block
44: free end shaft pressure cap 45: the stiff end bearing gland
46: lubricating cup 47: alignment pin
48: connecting bolt 51: driving gear
52: driven gear 53: main reducing gear
61: main motor 62: drive unit at a slow speed
The specific embodiment
For further setting forth the utility model, be to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, a kind of its specific embodiment of specific flour mill, structure, feature and effect thereof by roller bearings to according to the utility model proposes, be described in detail as follows.
Relevant aforementioned and other technology contents of the present utility model, Characteristic can be known and present in the following detailed description coordinated with reference to graphic preferred embodiment.Explanation by the specific embodiment, should be to reach technological means and the effect that predetermined purpose takes to obtain one more deeply and concrete understanding to the utility model, yet appended graphic only being to provide with reference to the use with explanation, not be used for the utility model is limited.
Referring to shown in Fig. 1, is the structural representation of the utility model with specific flour mill one preferred embodiment of roller bearings.The utility model mainly is comprised of feeding part 10, rotating part 20, output section 30, running part and drive part with the specific flour mill of roller bearings.Wherein, running part can comprise: driving gear 51, driven gear 52 and main reducing gear 53, drive part can comprise: main motor 61 and drive unit 62 at a slow speed, drive unit 62 mainly uses in maintenance with when liner plate is installed at a slow speed.As shown in Figure 1, the output of drive unit 62 is connected with the input of main motor 61 at a slow speed, and the output of main motor 61 is connected with the input of decelerator 51, and driving gear 52 is connected with the output of decelerator 51, and meshes with driven gear 53.
Referring to shown in Fig. 2, is the partial sectional view of the utility model with the rotating part of the specific flour mill of roller bearings.The utility model comprises with the rotating part 20 of the specific flour mill of roller bearings: cylindrical shell 21, be arranged at respectively the cone end cap 23 at cylindrical shell 21 two ends, the feed end quill shaft 25 be connected with the cone end cap 23 of cylindrical shell 21 1 ends, and the discharge end quill shaft 26 be connected with the cone end cap 23 of cylindrical shell 21 other ends.Wherein, feed end quill shaft 25 is connected with feeding part 10, and discharge end quill shaft 26 is connected with output section 30, on feed end quill shaft 25 and discharge end quill shaft 26, is respectively equipped with base bearing 40(as shown in Figure 1), base bearing 40 is rolling bearing 41.
Be provided with the shell liner of rare earth alloy in the inboard of described cylindrical shell, be provided with the end cap liner plate of rare earth alloy at described cone end cap towards a side of described cylindrical shell; Also be provided with the lifting strip of high-abrasive material in the inboard of described cylindrical shell, described end cap liner plate is with projection.
As shown in Figure 2, be arranged at an end of the rolling bearing 41 on discharge end quill shaft 26 near discharge end quill shaft 26, it is tight that the other end is set in a side pressure of the collar 27 on discharge end quill shaft 26.Be provided with discharging opening 29 in discharge end quill shaft 26, discharging opening 29 compresses the other end of collar 27.The driven gear 53 of running part is connected with collar 27, and collar 27 is connected with discharge end quill shaft 26 by key 28, drives discharge end quill shaft 26 and rotates.
Wherein, an end of discharge end quill shaft 26 is to be connected with cone end cap 23 by bolt, and discharging opening 29 is to be connected with the other end of discharge end quill shaft 26 by bolt, and compresses discharge end quill shaft 26 and collar 27.One end of collar 27 is to compress rolling bearing 41, and the other end is to close by the bolt handle with driven gear 53, and key 28 is to connect collar 27 and discharge end quill shaft 26 in the inside of collar 27.Therefore when main motor 61 drives driven gear 53 to rotate by decelerator 51 and driving gear 52, driven gear 53 drives collar 27 by bolt and rotates, 27 of collars will move by key 28 and moment of torsion is delivered on discharge end quill shaft 26, then drive cylindrical shell 21 rotations by bolt.
The utility model transmits motion and torque by key 28, secure and reliable connection, and this mode compact conformation that is in transmission connection, and mounting or dismounting are convenient, and positioning precision is higher, can bear certain impact.Wherein driven gear 53 is put together on collar 27 by bolt, the driven gear that this structure is different from ball mill commonly used is fixed on the connected mode on cylindrical shell, can reduce as required the diameter of driven gear, saves material and cost.
As shown in Figure 2, the utility model is respectively equipped with bearing cap 42 and bearing block 43 up and down rolling bearing 41, at the two ends of rolling bearing 41, also is respectively equipped with sealing gland.The rolling bearing 41 wherein be arranged on feed end quill shaft 25 moves about, and the sealing gland that its two ends arrange is free end sealing gland 44.The rolling bearing 41 be arranged on discharge end quill shaft 26 is fixed, and the sealing gland that its two ends arrange is stiff end sealing gland 45.Wherein stiff end sealing gland 45 is to be pressed on bearing outer ring, and by bolted on bearing cap 42 and bearing block 43.
Be filled with lubricating grease in the space that the utility model forms at bearing cap 42, bearing block 43 and sealing gland.And be equipped with ring-shaped groove on free end sealing gland 44 and stiff end sealing gland 45, also be filled with lubricating grease in ring-shaped groove, thereby can prevent that dust and foreign material from entering infringement rolling bearing 41 in bearing cap.
The utility model also is provided with lubricating cup 46 in the upper end of bearing cap 42, can regularly in bearing, add lubricating grease, effectively extends the service life of bearing.
Bearing cap 42 of the present utility model is first by alignment pin 47, to be located, then is fixed on bearing block 43 closing by bolt 48, and bearing block 43 is to be fastened on the pedestal of flour mill by foundation bolt.
The utility model adopts roller bearings with the specific flour mill of roller bearings, lubricated simple and convenient, can regularly by lubricating cup 46, in bearing, add lubricating grease, can when rolling, play bearing roller lubrication, used unnecessary lubricating grease can be filled in the groove of sealing gland again, play sealing function.Overcome the supporting way that existing grinding machine adopts dynamic and hydrostatic bearing, the spherical bush complex structure, difficulty of processing is high, required precision is high, need to be equipped with the defect of high-low pressure lubrication station, and the rolling bearing that the utility model adopts can the selection standard rolling bearing, cost is low, and type selecting is convenient.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. the specific flour mill by roller bearings, it comprises: feeding part, rotating part, output section, running part and drive part; It is characterized in that:
Described rotating part comprises: cylindrical shell is arranged at respectively the cone end cap at described cylindrical shell two ends, the feed end quill shaft be connected with the described cone end cap of described cylindrical shell one end, and the discharge end quill shaft be connected with the described cone end cap of the described cylindrical shell other end; Wherein said feed end quill shaft is connected with described feeding part, and described discharge end quill shaft is connected with described output section;
Be respectively equipped with rolling bearing on described feed end quill shaft and described discharge end quill shaft; Described rolling bearing be respectively equipped with up and down bearing cap and bearing block, also be respectively equipped with sealing gland at the two ends of described rolling bearing; And be filled with lubricating grease in the space formed at described bearing cap, described bearing block and described sealing gland;
Wherein, be arranged at an end of the described rolling bearing on described discharge end quill shaft near described discharge end quill shaft, it is tight that the other end is set in a side pressure of the collar on described discharge end quill shaft; Be provided with discharging opening in described discharge end quill shaft, described discharging opening compresses the other end of described collar; The driven gear of described running part is connected with described collar, and described collar is connected with described discharge end quill shaft by key, drives described discharge end quill shaft and rotates.
2. the specific flour mill by roller bearings according to claim 1, is characterized in that the described rolling bearing wherein be arranged on described discharge end quill shaft fixes, and the described sealing gland that its two ends arrange is the stiff end sealing gland; The described rolling bearing be arranged on described feed end quill shaft moves about, and the described sealing gland that its two ends arrange is the free end sealing gland.
3. the specific flour mill by roller bearings according to claim 1, the tight described rolling bearing of a side pressure that it is characterized in that wherein said collar, the other end and described driven gear, closing, are connected with described discharge end quill shaft by described key in the inside of described collar.
4. the specific flour mill by roller bearings according to claim 1, is characterized in that wherein on described sealing gland, being provided with ring-shaped groove, in described ring-shaped groove, is filled with lubricating grease.
5. the specific flour mill by roller bearings according to claim 1, is characterized in that wherein said bearing cap and described bearing block are to locate by alignment pin, and be bolted fastening.
6. the specific flour mill by roller bearings according to claim 1, an end that it is characterized in that wherein said discharge end quill shaft is to be connected with described cone end cap by bolt, described discharging opening is to be connected with the other end of described discharge end quill shaft by bolt, and compresses described discharge end quill shaft and described collar.
7. the specific flour mill by roller bearings according to claim 1, is characterized in that wherein in the inboard of described cylindrical shell, being provided with the shell liner of rare earth alloy being provided with the end cap liner plate of rare earth alloy at described cone end cap on a side of described cylindrical shell; Also be provided with the lifting strip of high-abrasive material in the inboard of described cylindrical shell, described end cap liner plate is with projection.
8. the specific flour mill by roller bearings according to claim 1, is characterized in that wherein said bearing cap is provided with lubricating cup.
9. the specific flour mill by roller bearings according to claim 1, is characterized in that wherein said running part also comprises: decelerator and driving gear; Described driving gear is connected with the output of described decelerator, and meshes with described driven gear.
10. the specific flour mill by roller bearings according to claim 9 is characterized in that wherein said drive part comprises: main motor and drive unit at a slow speed; The output of described drive unit at a slow speed is connected with the input of described main motor, and the output of described main motor is connected with the input of described decelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384127.9U CN203370608U (en) | 2013-06-28 | 2013-06-28 | Specific pulverizer supported by rolling bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384127.9U CN203370608U (en) | 2013-06-28 | 2013-06-28 | Specific pulverizer supported by rolling bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203370608U true CN203370608U (en) | 2014-01-01 |
Family
ID=49833165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320384127.9U Expired - Fee Related CN203370608U (en) | 2013-06-28 | 2013-06-28 | Specific pulverizer supported by rolling bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203370608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846127A (en) * | 2013-06-28 | 2014-06-11 | 洛阳宇航重工机械有限公司 | Specific pulverizer supported by rolling bearing |
-
2013
- 2013-06-28 CN CN201320384127.9U patent/CN203370608U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846127A (en) * | 2013-06-28 | 2014-06-11 | 洛阳宇航重工机械有限公司 | Specific pulverizer supported by rolling bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471003 Qinghua science park, hi tech Development Zone, Henan, Luoyang Patentee after: LUOYANG YUHANG HEAVY INDUSTRY TECHNOLOGY CO.,LTD. Address before: 471003 Qinghua science park, hi tech Development Zone, Henan, Luoyang Patentee before: LUOYANG YUHANG HEAVY MACHINERY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 14, 2023, the expiration and termination of 39 volumes and 2802 issues of the patent Number: 28-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 |