CN101879618B - Special boring equipment - Google Patents
Special boring equipment Download PDFInfo
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- CN101879618B CN101879618B CN2010102002732A CN201010200273A CN101879618B CN 101879618 B CN101879618 B CN 101879618B CN 2010102002732 A CN2010102002732 A CN 2010102002732A CN 201010200273 A CN201010200273 A CN 201010200273A CN 101879618 B CN101879618 B CN 101879618B
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Abstract
The invention discloses special boring equipment, which comprises a positioning bracket, a plurality of positioning bases, a feeding mechanism, a boring bar mechanism, and a transmission mechanism. A frame is fixed on a working table; the plurality of positioning bases are fixed on the working table; the positioning bracket is fixed on the frame; the transmission mechanism is arranged on the positioning bracket; the feeding mechanism is fixed on the upper part of the transmission mechanism; and an upper end of the boring bar mechanism is connected with an output end of the transmission mechanism, and a lower end of the boring bar mechanism is supported on the positioning bases. The boring equipment can complete rough boring, semi-finishing boring and finishing boring at one time, and has stable processing process and high working efficiency. The special boring equipment has the advantages of compact structure, simple operation, and strong universality, and can be used for large diameter hole boring in longitudinal, transverse and other directions.
Description
Technical field
The present invention relates to a kind of process equipment, especially a kind of boring equipment of cylinder hole of diesel engine stand belongs to the metal cutting processing technique field.
Background technology
Frame is the core component of diesel engine; Cylinder jacket is installed in the cylinder-bore of frame; Piston is housed in the cylinder jacket, and the machining accuracy of cylinder-bore, perpendicularity require very high, because the frame profile is big and the cylinder-bore diameter is big; There is following point in common boring machine when adopting traditional boring cutter to its cut: the stroke of common boring machine is limited, can not No. one time clamping accomplish the processing of all cylinder-bore; Tradition boring cutter rigidity is not enough, and cutting force is beated cutter, causes the size of cylinder-bore, form and position tolerance undesirable; Influence the final assembly precision; Normal operation has very big influence to diesel engine, even can make the serious consequence of diesel engine generation scuffing of cylinder bore, and cylinder-bore adds thick, half smart, the fine finishining three process of work point; Common boring machine need be changed No. three boring cutters and process, and working (machining) efficiency is low.
Summary of the invention
The purpose of this invention is to provide that a kind of machining accuracy is high, rigidity is strong, can disposable continuous completion heavy boring, the frame special boring equipment of half right boring, the processing of right boring three process.
The present invention is achieved through following technical scheme:
A kind of special boring equipment comprises locating rack, several positioning seats, feed mechanism, boring bar mechanism, transmission mechanism, and frame is fixed on the workbench, and each hole site of the required bore hole of the corresponding frame of several positioning seats is fixed on the workbench; Said locating rack is fixed on the frame, and said transmission mechanism is fixed on the locating rack, and said feed mechanism is fixed on transmission mechanism top, and said boring bar mechanism upper end is connected with the transmission mechanism output, and bearings is passed through on positioning seat in boring bar mechanism lower end; Said transmission mechanism comprises worm-and-wheel gear, transmission case body, driving motor; Said transmission case body is fixed on the locating rack top; Said driving motor is fixed on locating rack one side through the driving motor seat, and the driving motor output shaft is connected with worm screw one end through belt transmission; Said worm-and-wheel gear comprises worm gear, worm screw, and said worm screw is arranged in the transmission case body, and said worm gear two end supports is in transmission case body, and worm gear and boring bar mechanism upper end is fixedly connected.
The object of the invention can also further realize through following technical measures.
Aforesaid a kind of special boring equipment, wherein said boring bar mechanism comprises that boring bar, cutter hub, feed screw, said cutter hub and boring bar flexibly connect, and said feed screw is arranged in the boring bar, and an end links to each other with feed mechanism.
Aforesaid a kind of special boring equipment; Wherein said feed mechanism comprises feeding motor, feeding casing, the first power transmission group, the second power transmission group, shifting fork mechanism; Said feeding motor is connected with the first power transmission group through belt transmission; The feeding casing is fixed on transmission mechanism top, and the feeding motor is fixed on feeding casing top; The said first power transmission group, the second power transmission group are arranged in the feeding casing; The said first power transmission group comprises parallel first power transmission shaft and second power transmission shaft in the feeding casing, travelling gear, the differential gear set fast of being supported on; Said first power transmission shaft upper end is stretched out the feeding casing and is linked to each other with the feeding motor, and said first power transmission shaft middle part is provided with gear.
Aforesaid a kind of special boring equipment; The wherein said second power transmission group comprises the 3rd power transmission shaft, roller gear I, roller gear II; Said the 3rd power transmission shaft upper end is connected with second power transmission shaft, differential gear set through flat key; Roller gear I and the 3rd power transmission shaft lower end are fixing to be connected, and roller gear II is fixedly connected with the feed screw upper end.
Aforesaid a kind of special boring equipment; The wherein said quick travelling gear endoporus and second power transmission shaft flexibly connect; The big end end face of travelling gear is provided with initiatively boss fast; Said differential gear set comprises first differential gearing, second differential gearing, fixed gear, and said fixed gear is fixedly connected with the feeding bottom half, and fixed gear and the 3rd power transmission shaft flexibly connect; Said second differential gearing is arranged on the fixed gear upside; First differential gearing is fixed on the second differential gearing upside; The second differential gearing end face initiatively is provided with driven boss in the boss corresponding position at quick travelling gear, and second differential gearing is connected with the second power transmission shaft lower end, the 3rd power transmission shaft upper end respectively through flat key; Said first differential gearing, second differential gearing are all identical with modulus, the number of teeth of fixed gear.
Aforesaid a kind of special boring equipment; Wherein said shifting fork mechanism comprises shift fork, handle set, slide block, alignment pin, spragging gear, backstay, locking ball; Said backstay upper and lower end is slidably disposed on respectively on feeding casing and the transmission case body, and shift fork is fixed on the backstay middle part, and spragging gear is arranged on the shift fork downside; Shift fork one side and handle set one end flexibly connect, shift fork opposite side and travelling gear flexible connection fast; Said backstay upper end cylindrical axially evenly is provided with several V-arrangement translots; Said V-arrangement translot offside is through the rotation of dive key restriction backstay; Locking ball is arranged in the locating hole of feeding casing, and the V-arrangement translot of the corresponding backstay of said locating hole is provided with spring in the locating hole; Locking ball is being stuck under the effect of spring on the V-arrangement translot, limits moving axially of backstay.
Aforesaid a kind of special boring equipment; Wherein said spragging gear upper and lower sides is respectively through shift fork and backstay step location; Said spragging gear cylindrical has one and dodges annular groove, and the spragging gear width is divided into wide tooth section, narrow tooth section two parts, said thickness of dodging the annular groove width greater than first differential gearing; Wide tooth section width equals the thickness sum of second differential gearing and fixed gear, and narrow tooth section width equates with the thickness of first differential gearing.
Aforesaid a kind of special boring equipment; Wherein said handle is fixedly connected with handle set, and said handle set is fixed in feeding casing one side, and alignment pin one end is fixed on the eccentric position of handle set; Slide block set is contained on the alignment pin other end, and said slide block one end is embedded in the fork slot.
Little, the compact conformation of volume of the present invention, positioning and rigid is strong up and down in boring bar mechanism, and feed mechanism makes the cutter hub stable cutting.Because frame is provided with the multi-cylinder hole, the present invention's ability one-time continuous is accomplished heavy boring, half right boring, the processing of right boring three process of single cylinder-bore, has shortened process time, has improved crudy, has reduced processing cost.When the present invention uses; In advance each positioning seat is required to be fixed on the workbench according to the frame pitch-row; Again frame is fixed on the workbench, then the present invention is fixed on the frame, need not centering and get final product the boring cylinder-bore; Need not the tool changing one-time continuous and accomplish heavy boring, half right boring, right boring processing, working (machining) efficiency improves than common boring machine greatly.
Advantage of the present invention and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain that these embodiment only provide with reference to accompanying drawing as an example.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is that partial schematic diagram is looked on the left side of Fig. 1;
Fig. 3 is that the A-A of Fig. 4 analyses and observe enlarged diagram;
Fig. 4 is that the B-B of Fig. 2 analyses and observe enlarged diagram;
Fig. 5 is that the C-C of Fig. 1 analyses and observe enlarged diagram.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Like Fig. 1, Fig. 2 and shown in Figure 5; The present invention includes locating rack 2, several positioning seats 8, feed mechanism 3, boring bar mechanism 4, transmission mechanism 5; Frame 6 is fixed on the workbench 7, and each hole site of several positioning seat 8 corresponding frame 6 required bore holes is fixed on the workbench 7.Locating rack 2 is fixed on frame 6 upsides, and transmission mechanism 5 is fixed on the locating rack 2, and feed mechanism 3 is fixed on transmission mechanism 5 tops.Boring bar mechanism 4 upper ends are connected with transmission mechanism 5 outputs, and bearings is passed through on positioning seat 8 in the lower end.
Like Fig. 1, Fig. 2 and shown in Figure 4; Transmission mechanism 5 comprises worm-and-wheel gear 50, transmission case body 54, driving motor 55; Transmission case body 54 is fixed on locating rack 2 tops; Driving motor seat 56 is fixed on locating rack 2 one sides, and driving motor 55 is fixed on driving motor seat 56 upsides, and driving motor 55 output shafts are connected with worm screw one end through belt transmission; Worm-and-wheel gear 50 comprises worm gear 51, worm screw 52, and the two ends of said worm screw 52 are arranged in the transmission case body 54, and worm gear 51 two ends are supported in the transmission case body 54 through bearing 53, and worm gear 51 is fixedly connected with boring bar mechanism 4 upper ends through boring bar cover 44.
As shown in Figure 1, boring bar mechanism 4 comprises boring bar 41, cutter hub 42, feed screw 43, boring bar cover 44, and cutter hub 42 is sleeved on the boring bar 41, can on boring bar 41, move, and feed screw 43 is arranged in the boring bar 41, and an end links to each other with feed mechanism 3.
Like Fig. 1, shown in Figure 4; Feed mechanism 3 comprises feeding motor 35, feeding casing 37, the first power transmission group 32, the second power transmission group 33, shifting fork mechanism 34; Feeding motor 35 drives belt pulley 36 through belt; Belt pulley 36 is connected with the first power transmission group 32 through flat key, and feeding casing 37 is fixed on transmission mechanism 5 tops, and feeding motor 35 is fixed on feeding casing 37 tops.The first power transmission group 32, the second power transmission group 33 are set in parallel in the feeding casing 37; The first power transmission group 32 comprises parallel first power transmission shaft 321 and second power transmission shaft 327, quick travelling gear 322, differential gear set 323 that is supported in the feeding casing 37; First power transmission shaft, 321 upper ends are stretched out feeding casing 37 and are connected with belt pulley 36 through flat key; First power transmission shaft, 321 middle parts are provided with gear 321-1; The travelling gear 322 and second power transmission shaft 327 flexibly connect fast, and its big end end face is provided with initiatively boss 322-1.
The second power transmission group 33 comprises the 3rd power transmission shaft 331, roller gear I 332, roller gear II 333; The 3rd power transmission shaft 331 upper ends are fixedly connected with second power transmission shaft, 327 lower ends, differential gear set 323 through flat key; The 3rd power transmission shaft 331 lower ends are fixedly connected with roller gear I 332; Roller gear II 333 is fixedly connected with feed screw 43 upper ends, roller gear I 332 and roller gear II 333 engagements.
Shifting fork mechanism 34 comprises shift fork 341, handle set 342, slide block 344, alignment pin 345, spragging gear 346, backstay 347, locking ball 348; Backstay 347 upper ends pass feeding casing 37; The lower end is positioned in the transmission case body 54, and backstay 347 can move up and down.Shift fork 341 is fixed on backstay 347 middle parts through pin 349, and spragging gear 346 is arranged on shift fork 341 downsides.Shift fork 341 1 sides flexibly connect through groove I 341-1 and handle set 342 1 ends, and opposite side flexibly connects with quick travelling gear 322 through groove II 341-2.Backstay 347 upper end cylindricals axially evenly are provided with three V-arrangement translot 347-1; V-arrangement translot 347-1 offside is through the rotation of dive key restriction backstay 347; Locking ball 348 is arranged on the locating hole of feeding casing 37, and the V-arrangement translot 347-1 position of the corresponding backstay 347 of locating hole is provided with spring 301 in the locating hole; Locking ball 348 is being stuck under the effect of spring 301 on the V-arrangement translot 347-1, limits moving axially of backstay 347.
Through shift fork 341 and backstay step 347-2 location, spragging gear 346 cylindricals have one and dodge annular groove 346-2 spragging gear 346 upper and lower sides, and the spragging gear width is divided into two sections of wide tooth section 346-1, narrow tooth section 346-3 respectively.Dodge the thickness of the width of annular groove 346-2 greater than first differential gearing 324, wide tooth section 346-1 width equals second differential gearing 325 and fixed gear 326 thickness sums, and narrow tooth section 346-3 width equates with the thickness of first differential gearing 324.
When the present invention uses, earlier each positioning seat 8 is required to be fixed on the workbench 7 according to the frame pitch-row, again frame 6 is fixed on the workbench 7, then the present invention is fixed on the frame 6.Start driving motor 55, boring bar mechanism 4 rotates under the drive of worm-and-wheel gear 50, and cutter hub 42 is not done and cut feeding and move at this moment.Then start feeding motor 35, belt pulley 36 drives first power transmission shaft 321 and rotates, and the middle part gear 321-1 of first power transmission shaft 321 drives quick travelling gear 322 rotations with its engagement, and this moment, second power transmission shaft 327 did not rotate; Locking ball 348 is stuck in the V-arrangement translot 347-1 of backstay 347 lower ends; Because spragging gear 346 wide tooth section 346-1 width equal second differential gearing 325 and fixed gear 326 thickness sums, the wide tooth section 346-1 of spragging gear 346 is meshed with fixed gear 326 with second differential gearing 325.Pull handle 343; Handle set 342 moves down through the alignment pin 345 drive slide blocks 344 promotion shift forks 341 of off-centre; Shift fork 341 promotes quick travelling gear 322 through groove II 341-2 and moves down; Driving backstay 347 simultaneously moves down; Push locking ball 348 open and make in its middle V-arrangement translot 347-1 that is stuck in backstay 347 until the following V-arrangement translot 347-1 of backstay 347, the wide tooth section 346-1 of spragging gear 346 only is meshed with fixed gear 326, and narrow tooth section 346-3 is meshed with first differential gearing 324.Pull handle 343 again; Locking ball 348 is stuck in the backstay 347 V-arrangement translot 347-1 topmost, and the active boss 322-1 on the at this moment quick travelling gear 322 and the driven boss 325-1 of second differential gearing 325 lean in same plane, and wide tooth section 346-1 and fixed gear 326 are thrown off; Narrow tooth section 346-3 is meshed with second differential gearing 325; The active boss 322-1 of travelling gear 322 promotes the driven boss 325-1 of second differential gearing 325 fast, and second differential gearing 325 is rotated, and drives second power transmission shaft 327 and 331 rotations of the 3rd power transmission shaft; Also driving first differential gearing 324 that is connected with second differential gearing 325 rotates; The spragging gear 346 that is meshed with second differential gearing 325 also rotates, and the 3rd power transmission shaft 331 drives roller gear I 332 and rotates, and drives screw mandrel 43 through the roller gear II 333 with its engagement and rotates; The feed screw nut who drives in the cutter hub 42 moves, and drives cutter hub 42 feedings cutting.After the completion to be processed, oppositely pull handle 343, backstay 347 is up moved; The quick travelling gear 322 of shift fork 341 promotions up moves, and backstay step 347-2 drives spragging gear 346 and up moves, and travelling gear 322 active boss 322-1 and second differential gearing, 325 driven boss 325-1 disengage fast; Power is thrown off, and locking ball 348 is stuck in the V-arrangement translot 347-1 in the middle of the backstay 347, its wide tooth section 346-1 elder generation and fixed gear 326 engagements in the process that spragging gear 346 up moves; In the process of engagement, owing to fixed gear 326 does not rotate, so spragging gear 346 stops operating; Spragging gear 346 narrow tooth section 346-3 and 324 engagements of first differential gearing simultaneously; First differential gearing 324 is stopped operating rapidly, thereby feed screw 43 stops operating, oppositely pull handle 343 once more; Locking ball 348 is stuck among 347 times V-arrangement translots of backstay 347-1, accomplishes the boring processing of 6 one cylinder-bore of frame.The present invention is hung out the cylinder-bore of completion of processing, hang in next cylinder-bore again, continue above operation until the boring processing of accomplishing frame 6 all cylinder-bore.
Except that the foregoing description, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (9)
1. a special boring equipment comprises locating rack, several positioning seats, feed mechanism, boring bar mechanism, transmission mechanism, and frame is fixed on the workbench, and each hole site of the required bore hole of the corresponding frame of several positioning seats is fixed on the workbench; Said locating rack is fixed on the frame, and said transmission mechanism is fixed on the locating rack, and said feed mechanism is fixed on transmission mechanism top, and said boring bar mechanism upper end is connected with the transmission mechanism output, and bearings is passed through on positioning seat in boring bar mechanism lower end; Said transmission mechanism comprises worm-and-wheel gear, transmission case body, driving motor; Said transmission case body is fixed on the locating rack top; Said driving motor is fixed on locating rack one side through the driving motor seat, and the driving motor output shaft is connected with worm screw one end through belt transmission; Said worm-and-wheel gear comprises worm gear, worm screw, and said worm screw is arranged in the transmission case body, and said worm gear two end supports is in transmission case body, and worm gear and boring bar mechanism upper end is fixedly connected.
2. a kind of special boring equipment as claimed in claim 1 is characterized in that: said boring bar mechanism comprises that boring bar, cutter hub, feed screw, said cutter hub and boring bar flexibly connect, and said feed screw is arranged in the boring bar, and an end links to each other with feed mechanism.
3. a kind of special boring equipment as claimed in claim 2; It is characterized in that: said feed mechanism comprises feeding motor, feeding casing, the first power transmission group, the second power transmission group, shifting fork mechanism; Said feeding motor is connected with the first power transmission group through belt transmission; The feeding casing is fixed on transmission mechanism top, and the feeding motor is fixed on feeding casing top; The said first power transmission group, the second power transmission group are arranged in the feeding casing; The said first power transmission group comprises parallel first power transmission shaft and second power transmission shaft in the feeding casing, travelling gear, the differential gear set fast of being supported on; Said first power transmission shaft upper end is stretched out the feeding casing and is linked to each other with the feeding motor, and said first power transmission shaft middle part is provided with gear.
4. a kind of special boring equipment as claimed in claim 3; It is characterized in that: the second power transmission group comprises the 3rd power transmission shaft, roller gear I, roller gear II; Said the 3rd power transmission shaft upper end links to each other with second power transmission shaft, differential gear set through flat key; Roller gear I is fixedly connected with the 3rd power transmission shaft lower end, and roller gear II is fixedly connected with the feed screw upper end.
5. a kind of special boring equipment as claimed in claim 3 is characterized in that: the said quick travelling gear endoporus and second power transmission shaft flexibly connect, and the big end end face of travelling gear is provided with initiatively boss fast.
6. a kind of special boring equipment as claimed in claim 4; It is characterized in that: said differential gear set comprises first differential gearing, second differential gearing, fixed gear; Said fixed gear is fixedly connected with the feeding bottom half, and fixed gear and the 3rd power transmission shaft flexibly connect; Said second differential gearing is arranged on the fixed gear upside; First differential gearing is fixed on the second differential gearing upside; The second differential gearing end face initiatively is provided with passive boss in the boss corresponding position at quick travelling gear, and second differential gearing is connected with the second power transmission shaft lower end, the 3rd power transmission shaft upper end respectively through flat key; Said first differential gearing, second differential gearing are all identical with modulus, the number of teeth of fixed gear.
7. a kind of special boring equipment as claimed in claim 6; It is characterized in that: said shifting fork mechanism comprises shift fork, handle set, slide block, alignment pin, spragging gear, backstay, locking ball; Said backstay upper and lower end is slidably disposed on respectively on feeding casing and the transmission case body, and shift fork is fixed on the backstay middle part, and spragging gear is arranged on the shift fork downside; Shift fork one side and handle set one end flexibly connect, shift fork opposite side and travelling gear flexible connection fast; Said backstay upper end cylindrical axially evenly is provided with several V-arrangement translots; Said V-arrangement translot offside is through the rotation of dive key restriction backstay; Locking ball is arranged in the locating hole of feeding casing, and the V-arrangement translot of the corresponding backstay of said locating hole is provided with spring in the locating hole; Locking ball is being stuck under the effect of spring on the V-arrangement translot, limits moving axially of backstay.
8. a kind of special boring equipment as claimed in claim 7; It is characterized in that: said spragging gear upper and lower sides is respectively through shift fork and backstay step location; Said spragging gear cylindrical has one and dodges annular groove, and the spragging gear width is divided into wide tooth section, narrow tooth section two parts, said thickness of dodging the annular groove width greater than first differential gearing; Wide tooth section width equals the thickness sum of second differential gearing and fixed gear, and narrow tooth section width equates with the thickness of first differential gearing.
9. a kind of special boring equipment as claimed in claim 7; It is characterized in that: said handle is fixedly connected with handle set; Said handle set is fixed in feeding casing one side; Alignment pin one end is fixed on the eccentric position of handle set, and slide block set is contained on the alignment pin other end, and said slide block one end is embedded in the fork slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102002732A CN101879618B (en) | 2010-06-13 | 2010-06-13 | Special boring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102002732A CN101879618B (en) | 2010-06-13 | 2010-06-13 | Special boring equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101879618A CN101879618A (en) | 2010-11-10 |
| CN101879618B true CN101879618B (en) | 2012-05-09 |
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ID=43051828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102002732A Expired - Fee Related CN101879618B (en) | 2010-06-13 | 2010-06-13 | Special boring equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN101879618B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303147B (en) * | 2011-08-25 | 2014-03-19 | 广州中船黄埔造船有限公司 | Vertical hole boring machine |
| CN105458626B (en) * | 2015-12-11 | 2017-10-10 | 中国南方航空工业(集团)有限公司 | Processing control method for aero-engine fuel nozzle part |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555965Y (en) * | 2002-07-01 | 2003-06-18 | 西安专用机床厂 | Boring mill for cylinder bush |
| JP4518059B2 (en) * | 2006-10-06 | 2010-08-04 | トヨタ自動車株式会社 | Cylinder block processing jig and processing method |
| CN201693206U (en) * | 2010-06-13 | 2011-01-05 | 镇江中船设备有限公司 | Special boring equipment |
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2010
- 2010-06-13 CN CN2010102002732A patent/CN101879618B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101879618A (en) | 2010-11-10 |
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Owner name: CSSC MARINE POWER CO., LTD. Free format text: FORMER OWNER: ZHENJIANG CME CO., LTD. Effective date: 20140603 |
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Free format text: CORRECT: ADDRESS; FROM: 212311 ZHENJIANG, JIANGSU PROVINCE TO: 212002 ZHENJIANG, JIANGSU PROVINCE |
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Effective date of registration: 20140603 Address after: Zhenjiang City, Jiangsu Province, the Yangtze River Road 212002 Runzhou District No. 402 Patentee after: Cssc Marine Power Co., Ltd. Address before: Zhenjiang City, Jiangsu Province, 212311 Kwun Tong Bridge Runzhou District Road No. 250 Patentee before: Zhenjiang Zhongchuan Equipment Co., Ltd. Effective date of registration: 20140603 Address after: Zhenjiang City, Jiangsu Province, the Yangtze River Road 212002 Runzhou District No. 402 Patentee after: Cssc Marine Power Co., Ltd. Address before: Zhenjiang City, Jiangsu Province, 212311 Kwun Tong Bridge Runzhou District Road No. 250 Patentee before: Zhenjiang Zhongchuan Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20190613 |
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| CF01 | Termination of patent right due to non-payment of annual fee |