CN205436617U - Novel PQF tandem mill spiale - Google Patents
Novel PQF tandem mill spiale Download PDFInfo
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- CN205436617U CN205436617U CN201521113434.9U CN201521113434U CN205436617U CN 205436617 U CN205436617 U CN 205436617U CN 201521113434 U CN201521113434 U CN 201521113434U CN 205436617 U CN205436617 U CN 205436617U
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Abstract
The utility model discloses a novel PQF tandem mill spiale, it includes roller end subassembly, increment subassembly, and it still includes an axle subassembly, and the left end of axle subassembly is connected with the roller end subassembly through the gear pair, and its right -hand member passes through the fastener and links to each other with the increment subassembly, the roller end subassembly includes roller end ring gear, big connection pad, rises and tightly encircles device, big dabber, the axle subassembly includes left kicking block, dissection gland, big external tooth axle sleeve, spline housing, integral key shaft, spacer, location snap ring device, spring unit, axle head subassembly, right kicking block. The utility model discloses a novel spiale of PQF tandem mill, it can realize that big displacement is flexible to can realize reseing fast, guarantee the high efficiency of production. Simultaneously, it can satisfy on -the -spot production high accuracy, high quality seamless steel pipe's requirement.
Description
Technical field
This utility model relates to the novel spindle of one of PQF tandem mill, can be widely used for the connection between roll and the gear-box of three roll structure tandem rolling tube machine production scenes.
Background technology
Two roller axial rolling tandem rolling tube machines, since coming out, have quickly grown, and obtain the favor of people with its good quality and high output, low consumption, and have become the main flow of seamless steel tube production.But the intensification two roller tube-rolling techniques recognized along with people and the understanding to production practices, find that two roller continuous pipe rolling mills exist a great problem, i.e. in the operation of rolling, mass defect can be produced because of metal inhomogeneous deformation, and along with raising the problems referred to above of the alloy ratio of pass size, diameter-wall-rate and rolling stock become increasingly severe, part high-end product rate of growth only has 50%, to this end, experts and scholars are finding the approach solving this difficult problem both at home and abroad.
Along with extensively application such as China's infrastructure construction propelling and the structural member of energy conduit Facilities Construction and machine components etc., increasing to the demand in seamless steel pipe product market.Through the effort of China and foreign countries expert, solve an above difficult problem in developing three-roller type continuous rolling-tube unit at the beginning of 21 century.Three roll structure tandem rolling tube machines (i.e. PREMIUMQUALITYFINISHING is called for short PQF milling train) are compared with two roller continuous rolling process, thickness of steel pipe is uniform, precision is high, instrument consumes low, high alloy, large diameter-ratio kind can be produced, crop end loss can be reduced, recovery rate is high, and wherein the situation of transmission connecting shaft directly influences the production of seamless steel pipe.The shortcoming of PQF extension shaft for rolling mill is at present: 1, during roller-changing, realized movement and the reset of shaft assembly in spindle, inefficiency by reverse-flighted screw；2, when needs roll change shifts, mandrel can remove from spring, and when it resets, mandrel reenters during spring inner ring extremely difficult, and speed is extremely slow, also can produce simultaneously and rock；Therefore, also make it cannot realize big displacement to stretch；3, spline pair connects the backlash produced and tip clearance can not eliminate well, have impact on the quality of seamless steel pipe.
Utility model content
Problem to be solved in the utility model is to provide the novel spindle of one of PQF tandem mill, and it can realize big displacement and stretch, and can realize Rapid reset, it is ensured that the high efficiency of production.Meanwhile, it can meet produced on-site high accuracy, the requirement of high-quality seamless steel pipe.
A kind of novel PQF tandem mill spindle of this utility model, it includes roller end assembly, increment assembly, and it also includes shaft assembly, and the left end of shaft assembly is connected with roller end assembly by gear pair, and its right-hand member is connected with increment assembly by securing member；Roller end assembly includes roller end ring gear, Dalian flange, tension ring device, big mandrel；Roller end ring gear is enclosed within roll E；Dalian flange is fixed on inside roller end ring gear by tension ring device, and is fastened on the right side of roll E by connecting bolt, and Dalian flange is provided with big mandrel；Shaft assembly includes left jacking block, subdivision gland, big externality shaft, spline housing, splined shaft, spacer, locator card loop device, spring assembly, axle head assembly, right jacking block；The big external tooth of externality shaft left end is meshed with the internal tooth of roller end ring gear, and its right-hand member is connected with spline housing by spline；Subdivision gland is enclosed within big externality shaft, and is pressed on the left side of spline housing by securing member；Splined shaft left end is connected with spline housing by spline, and right-hand member is connected with spacer, axle head assembly；Spring assembly includes positioning core axle and spring, and it is arranged in the endoporus of big externality shaft, spline housing and splined shaft three；Spacer is contained on the step of splined shaft right-hand member, and the flange end on its left side is provided with connecting bolt, nut；Locator card loop device is enclosed within the groove of splined shaft, and is fastened on the right side of spacer；Left jacking block is arranged in the stepped hole of positioning core axle left end, and right jacking block is arranged in the hole of splined shaft right-hand member.
During roll change, bracket F stirs the annular groove wall of spline housing, spline housing is made to drive externality shaft to move toward gear box side, externality shaft holddown spring, externality shaft disengages with the internal tooth of roller end ring gear, after spline housing right flange end face contacts with spacer, is fixed on spacer by spline housing by connecting bolt, nut, roll stand entirety can remove replacing roll E (now, spring is reduced to the shortest position)；After roll E changes, unclamp connecting bolt, nut, spring promotes externality shaft by its own resilient, externality shaft drives spline housing together toward roll side shifting, after left jacking block contacts with big mandrel, externality shaft stops mobile, enter normal operating conditions (now, spring returns to initial position).
This utility model is by novel shaft assembly structure so that shaft assembly reset time balance, smooth and easy, any rocking will not be produced, state during work can be rapidly returned back to, i.e. achieve Rapid reset, be achieved so that the big displacement of whole shaft assembly is flexible, it is ensured that the high efficiency of production.Simultaneously, owing to this utility model can ensure that the stability of gear pivot angle, and spline pair and the tip clearance of spline pair and backlash can be eliminated, in addition spring stably will not make axis body produce impact thus ensure spindle smooth running, and therefore this utility model spindle can meet produced on-site high accuracy, the requirement of high-quality seamless steel pipe.
This utility model PQF tandem mill spindle is capable of expansion and contraction, the most convenient and swift, can effectively shorten again replacing roll downtime, reduce labor intensity, meet the requirement of continuous-rolling work characteristics.Meanwhile, this utility model is that seamless steel tube production factory improves product quality, it is ensured that produces and is smoothed out, creates benefit.
Accompanying drawing explanation
Fig. 1 is structural representation during this utility model PQF tandem mill spindle duty；
Enlarged diagram above line B-B when Fig. 1-1 is this utility model PQF tandem mill spindle duty；
Enlarged diagram between line B-B to line A-A when Fig. 1-2 is this utility model PQF tandem mill spindle duty；
Enlarged diagram below line A-A when Fig. 1-3 is this utility model PQF tandem mill spindle duty；
Fig. 2 is the sectional view of X-X line along Fig. 1-3；
Fig. 3 is structural representation during this utility model PQF tandem mill spindle roll change compressive state；
Fig. 4 is that the spindle of PQF tandem mill arranges schematic diagram.
Detailed description of the invention
Knowable to accompanying drawing, a kind of novel PQF tandem rolling spindle of this utility model, it includes roller end assembly 10, increment assembly 40, shaft assembly 20；The left end of shaft assembly is connected with roller end assembly 10 by gear pair, and its right-hand member is connected with increment assembly 40 by securing member.Concrete structure is as follows:
(1) roller end assembly 10 includes roller end ring gear, Dalian flange 103, tension ring device 104, big mandrel 105；Roller end ring gear is enclosed within roll E, and Dalian flange 103 is fixed on inside roller end ring gear by tension ring device 104, and is fastened on the right side of roll E by connecting bolt 107, and Dalian flange 103 is provided with big mandrel 105；
(2) shaft assembly 20 includes left jacking block 201, subdivision gland 203, big externality shaft 204, spline housing 205, splined shaft 208, spacer 211, locator card loop device 212, spring assembly, axle head assembly, right jacking block 218；The big external tooth of externality shaft 204 left end is meshed with the internal tooth of roller end ring gear, and its right-hand member is connected with spline housing 205 by spline；Subdivision gland 203 is enclosed within big externality shaft 204, and is pressed on the left side of spline housing 205 by securing member 224；Splined shaft 208 left end is connected with spline housing 205 by spline, and right-hand member is connected with spacer 211, axle head assembly；Spring assembly includes positioning core axle 206 and spring 239, and it is arranged in the endoporus of big externality shaft 204, spline housing 205 and splined shaft 208 three；Spacer 211 is contained on the step of splined shaft 208, and the flange end on its left side is provided with connecting bolt 230, nut 229；Locator card loop device 212 is enclosed within splined shaft 208 groove, and is fastened on the right side of spacer 211；Left jacking block 201 is arranged in the stepped hole of positioning core axle 206 left end, and right jacking block 218 is arranged in the hole of splined shaft 208 right-hand member；
(3) increment assembly 40 includes axle sleeve 402, cover plate 401, and axle sleeve 402 is enclosed within the axle shaft G of gear-box, and cover plate 401 is fastened on the end face of output shaft G by bolt 406.
Wherein, the left, center, right section of positioning core axle 206 is respectively in the endoporus of big externality shaft 204, spline housing 205 and splined shaft 208 three, its left end is connected with the left end of big externality shaft 204 by securing member 222, spring 239 is enclosed within positioning core axle 206, and its right-hand member is locked by spacer 240 and the nut 241 being enclosed within positioning core axle 206.Owing to the left end of spring 239 contacts with the endoporus of externality shaft 204, its right-hand member contacts with the endoporus of splined shaft 208, and so when tandem mill normally works, spring 239 will not produce and rock, ensure that the stability of spindle, thus ensure that the high-quality of seamless steel pipe.
As a kind of improved procedure of the present utility model, left section of positioning core axle 206 is enlarged diameter section, and the endoporus of splined shaft 208 is stepped hole, and spring 239 is between the step surface of positioning core axle 206 and the step surface of splined shaft 208 endoporus.So, when externality shaft 204 moves left and right, the step surface at two ends can ensure that the stability of spring 239, do not haves and rock, it is achieved that Rapid reset, the most therefore can realize big displacement and stretch, it is ensured that the high efficiency of production.
Wherein, axle head assembly includes left gland 214, right gland 215, slide block 216, little externality shaft 217, ring gear 220, little connection dish 221, small core shaft 242, black box 233；Little externality shaft 217 is connected with the right-hand member spline of splined shaft 208 by internal spline, and is engaged with ring gear 220 by external tooth；Slide block 216 is enclosed within little externality shaft 217, and its cylindrical is contained in right gland 215, and left gland 214, black box 233, right gland 215 are connected to each other by bolt 232 and are fixed on the left side of ring gear 220；Little connection dish 221 is fixed in ring gear 220 by snap ring 235, and little connection dish 221 is provided with small core shaft 242；Ring gear 220 is connected with increment assembly 40 by securing member；Small core shaft 242 contacts with right jacking block 218.Axle head assembly can play and eliminate the backlash and tip clearance produced when splined shaft 208 is connected by spline pair with spline housing 205, it is ensured that stability when work and relative motion.
As a kind of improved procedure of the present utility model, the contact surface between slide block 216 and externality shaft 217 is sphere.The advantage taking sphere-contact mode is: both can ensure that the stability of corner when gear engages, backlash and tip clearance when gear pair coordinates can also be eliminated further, the axial float of splined shaft 208 can also be eliminated, thus ensure the stability of spindle when tandem mill works, it is ensured that the high-quality of seamless steel pipe.
As a kind of improved procedure of the present utility model, shaft assembly also includes fairlead 207, support ring 209, gland 210, sealing 228, pressing plate 219；Fairlead 207 is enclosed within the left end of splined shaft 208, and is fixed by screw 226, its cylindrical and spline housing 205 endoporus contact slide；Support ring 209 is arranged on the right of spline housing 205 between the radial direction of flange end and splined shaft 208, contacts with both of which；Gland 210 is contained on splined shaft 208, and is pressed on the end face of support ring 209, and is fixed in spline housing 205 by screw 227, seals 228 and is arranged in gland 210, and is enclosed within splined shaft 208；Pressing plate 219 is fixed on splined shaft 208 by screw 234, and compresses externality shaft 217.Wherein, be conducive to spline housing 205 relative to the slip of spline housing 205 by fairlead 207, support ring 209, facilitate roll change；Backlash and tip clearance when spline pair coordinates can also be eliminated further, it is ensured that the stability of spindle during tandem mill work, it is ensured that the high-quality of seamless steel pipe.
As a kind of improved procedure of the present utility model, roller end ring gear includes ring gear body 101, liner plate 102；Liner plate 102 is fixed in the endoporus of ring gear body 101 by screw 106, and contacts with roll E.Roller end ring gear both can use monolithic construction can also use split-type structural.When using split-type structural, can independent dismounting and change after consumable accessory liner plate A2 abrasion, it is to avoid integral replacing ring gear.
As a kind of improved procedure of the present utility model, PQF tandem rolling spindle also includes first protective cover the 108, second protective cover the 202, the 3rd protective cover 213；Second protective cover 202 is enclosed within outside roller end ring gear, and is connected with subdivision gland 203 by screw 225, and sealing ring 223 is arranged in the second protective cover 202；First protective cover 108 is enclosed within outside roller end ring gear and the second protective cover 202；3rd protective cover 213 is enclosed within outside gland 215, and is fixed on the right side of spacer 211 by screw 231.Above-mentioned preventer can avoid the foreign body such as dust, water to enter in spindle, and in preventing gear pair, lubricating oil throws away simultaneously, thus extends the service life of spindle.
As a kind of improved procedure of the present utility model, PQF tandem rolling spindle also includes coupling sleeve 30, the left end flange end of coupling sleeve 30 is connected with ring gear 220 by connecting bolt 238, spring washer 237, nut 236, and its right-hand member flange is connected with increment assembly 40 by connecting bolt 405, spring washer 404, nut 403.So, when splined shaft 208 is shorter, the connection with increment assembly 40 can be realized by coupling sleeve 30；When splined shaft 208 is longer, it may not be necessary to coupling sleeve 30, directly it is connected with increment assembly 40.
When scene needs to change roll according to rolling kind difference, bracket F stirs the annular groove wall of spline housing 205, spline housing 205 is made to drive externality shaft 204 to move toward gear box side, externality shaft 204 holddown spring 239, externality shaft 204 disengages with the internal tooth of roller end ring gear, after spline housing 205 right flange end face contacts with spacer 211, by connecting bolt 230, nut 229, spline housing 205 is fixed on spacer 211, roll stand entirety can remove replacing roll E (now, spring 239 is reduced to the shortest position)；After roll E changes, unclamp connecting bolt 230, nut 229, spring 239 promotes externality shaft 204 by its own resilient, externality shaft 204 drives spline housing 205 together toward roll side shifting, after left jacking block 201 contacts with big mandrel 105, externality shaft 204 stops mobile, enter normal operating conditions (now, spring 239 returns to initial position).
This utility model forms novel shaft assembly structure by externality shaft 204, spring assembly and splined shaft 208 etc., i.e. spring 239 is stably between the step surface of positioning core axle 206 and the step surface of splined shaft 208 endoporus, when making spline housing 205 drive externality shaft 204 to move to the left or to the right, spring 239 is stably enclosed within positioning core axle 206, therefore any rocking will not be produced when resetting, state during work can be rapidly returned back to, i.e. achieve Rapid reset.Reliable mobile due to spring 239 so that the big displacement of whole shaft assembly is flexible to be achieved, it is ensured that the high efficiency of production.Simultaneously, owing to this utility model can ensure that the stability of gear pivot angle, and spline pair tip clearance and backlash can be eliminated, in addition spring stably will not make axis body produce impact so that spindle smooth running, and therefore this utility model spindle can meet produced on-site high accuracy, the requirement of high-quality seamless steel pipe.
Therefore this utility model PQF tandem mill spindle is capable of expansion and contraction, the most convenient and swift, can effectively shorten again replacing roll downtime, reduce labor intensity, meet the requirement of continuous-rolling work characteristics.Meanwhile, this utility model is that seamless steel tube production factory improves product quality, it is ensured that produces and is smoothed out, creates benefit.
This utility model is not limited to be used on the power transmission shaft of seamless steel tube production chain main transmission, it is possible to being widely used in other needs to realize that Quick release, big displacement be flexible, on the main transmission spindle of Rapid reset.
Claims (11)
1. a novel PQF tandem mill spindle, it includes roller end assembly (10), increment assembly (40), it is characterized in that: further comprising shaft assembly (20), the left end of shaft assembly is connected with roller end assembly (10) by gear pair, and its right-hand member is connected with increment assembly (40) by securing member；Roller end assembly (10) includes roller end ring gear, Dalian flange (103), tension ring device (104), big mandrel (105)；Roller end ring gear is enclosed within roll E, Dalian flange (103) is fixed on inside roller end ring gear by tension ring device (104), and be fastened on the right side of roll E by connecting bolt (107), Dalian flange (103) is provided with big mandrel (105)；Shaft assembly (20) includes left jacking block (201), subdivision gland (203), big externality shaft (204), spline housing (205), splined shaft (208), spacer (211), locator card loop device (212), spring assembly, axle head assembly, right jacking block (218)；The big external tooth of externality shaft (204) left end is meshed with the internal tooth of roller end ring gear, and its right-hand member is connected with spline housing (205) by spline；Subdivision gland (203) is enclosed within big externality shaft (204), and is pressed on the left side of spline housing (205) by securing member (224)；Splined shaft (208) left end is connected with spline housing (205) by spline, and right-hand member is connected with spacer (211), axle head assembly；Spring assembly includes positioning core axle (206) and spring (239), and it is arranged in the endoporus of big externality shaft (204), spline housing (205) and splined shaft (208) three；Spacer (211) is contained on the step of splined shaft (208) right-hand member, and the flange end on its left side is provided with connecting bolt (230), nut (229)；Locator card loop device (212) is enclosed within the groove of splined shaft (208), and is fastened on the right side of spacer (211)；Left jacking block (201) is arranged in the stepped hole of positioning core axle (206) left end, and right jacking block (218) is arranged in the hole of splined shaft (208) right-hand member.
A kind of novel PQF tandem mill spindle the most according to claim 1, it is characterized in that: the left, center, right section of positioning core axle (206) is respectively in the endoporus of big externality shaft (204), spline housing (205) and splined shaft (208) three, its left end is connected with the left end of big externality shaft (204) by securing member (222), spring (239) is enclosed within positioning core axle (206), and its right-hand member is locked by the spacer (240) being enclosed within positioning core axle (206) and nut (241).
A kind of novel PQF tandem mill spindle the most according to claim 2, it is characterized in that: left section of positioning core axle (206) is enlarged diameter section, the endoporus of splined shaft (208) is stepped hole, and spring (239) is between the step surface of positioning core axle (206) and the step surface of splined shaft (208) endoporus.
4. according to a kind of novel PQF tandem mill spindle described in claim 1-3 any claim, it is characterized in that: axle head assembly includes left gland (214), right gland (215), slide block (216), little externality shaft (217), ring gear (220), little connection dish (221), small core shaft (242), black box (233)；Little externality shaft (217) is connected with the right-hand member spline of splined shaft (208) by internal spline, and is engaged with ring gear (220) by external tooth；Slide block (216) is enclosed within little externality shaft (217), its cylindrical is contained in right gland (215), and left gland (214), black box (233), right gland (215) are connected to each other by bolt (232) and are fixed on the left side of ring gear (220)；Little connection dish (221) is fixed in ring gear (220) by snap ring (235), and little connection dish (221) is provided with small core shaft (242)；Ring gear (220) is connected with increment assembly (40) by securing member；Small core shaft (242) contacts with right jacking block (218).
A kind of novel PQF tandem mill spindle the most according to claim 4, is characterized in that: the contact surface between slide block (216) and externality shaft (217) is sphere.
6. according to a kind of novel PQF tandem mill spindle described in claim 1-3 any claim, it is characterized in that: shaft assembly also includes fairlead (207), support ring (209), gland (210), seals (228), pressing plate (219)；Fairlead (207) is enclosed within the left end of splined shaft (208), and is fixed by screw (226), its cylindrical and spline housing (205) endoporus contact slide；Support ring (209) is arranged between spline housing (205) the right flange end and the radial direction of splined shaft (208), contacts with both of which；Gland (210) is contained on splined shaft (208), and be pressed on the end face of support ring (209), and be fixed in spline housing (205) by screw (227), seal (228) to be arranged in gland (210), and be enclosed within splined shaft (208)；Pressing plate (219) is fixed on splined shaft (208) by screw (234), and compresses externality shaft (217).
A kind of novel PQF tandem mill spindle the most according to claim 4, is characterized in that: shaft assembly also includes fairlead (207), support ring (209), gland (210), seals (228), pressing plate (219)；Fairlead (207) is enclosed within the left end of splined shaft (208), and is fixed by screw (226), its cylindrical and spline housing (205) endoporus contact slide；Support ring (209) is arranged between spline housing (205) the right flange end and the radial direction of splined shaft (208), contacts with both of which；Gland (210) is contained on splined shaft (208), and be pressed on the end face of support ring (209), and be fixed in spline housing (205) by screw (227), seal (228) to be arranged in gland (210), and be enclosed within splined shaft (208)；Pressing plate (219) is fixed on splined shaft (208) by screw (234), and compresses externality shaft (217).
A kind of novel PQF tandem mill spindle the most according to claim 5, is characterized in that: shaft assembly also includes fairlead (207), support ring (209), gland (210), seals (228), pressing plate (219)；Fairlead (207) is enclosed within the left end of splined shaft (208), and is fixed by screw (226), its cylindrical and spline housing (205) endoporus contact slide；Support ring (209) is arranged between spline housing (205) the right flange end and the radial direction of splined shaft (208), contacts with both of which；Gland (210) is contained on splined shaft (208), and be pressed on the end face of support ring (209), and be fixed in spline housing (205) by screw (227), seal (228) to be arranged in gland (210), and be enclosed within splined shaft (208)；Pressing plate (219) is fixed on splined shaft (208) by screw (234), and compresses externality shaft (217).
A kind of novel PQF tandem mill spindle the most according to claim 1, is characterized in that: roller end ring gear includes ring gear body (101), liner plate (102)；Liner plate (102) is fixed in the endoporus of ring gear body (101) by screw (106), and contacts with roll E.
A kind of novel PQF tandem mill spindle the most according to claim 1, is characterized in that: PQF tandem rolling spindle also includes the first protective cover (108), the second protective cover (202), the 3rd protective cover (213)；Second protective cover (202) is enclosed within outside roller end ring gear, and is connected with subdivision gland (203) by screw (225), and sealing ring (223) is arranged in the second protective cover (202)；First protective cover (108) is enclosed within roller end ring gear and the second protective cover (202) outward；3rd protective cover (213) is enclosed within gland (215) outward, and is fixed on the right side of spacer (211) by screw (231).
11. a kind of novel PQF tandem mill spindles according to claim 1, it is characterized in that: PQF tandem rolling spindle also includes coupling sleeve (30), the left end flange end of coupling sleeve (30) is connected with ring gear (220) by connecting bolt (238), spring washer (237), nut (236), and its right-hand member flange is connected with increment assembly (40) by connecting bolt (405), spring washer 404, nut (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113434.9U CN205436617U (en) | 2015-12-28 | 2015-12-28 | Novel PQF tandem mill spiale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113434.9U CN205436617U (en) | 2015-12-28 | 2015-12-28 | Novel PQF tandem mill spiale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205436617U true CN205436617U (en) | 2016-08-10 |
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ID=56573013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521113434.9U Withdrawn - After Issue CN205436617U (en) | 2015-12-28 | 2015-12-28 | Novel PQF tandem mill spiale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205436617U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583234A (en) * | 2015-12-28 | 2016-05-18 | 泰尔重工股份有限公司 | Novel premium quality finishing (PQF) continuous mill connecting shaft and roll changing method |
| CN106424153A (en) * | 2016-10-31 | 2017-02-22 | 泰尔重工股份有限公司 | Modified thin oil lubrication drum-shaped tooth type coupling |
-
2015
- 2015-12-28 CN CN201521113434.9U patent/CN205436617U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583234A (en) * | 2015-12-28 | 2016-05-18 | 泰尔重工股份有限公司 | Novel premium quality finishing (PQF) continuous mill connecting shaft and roll changing method |
| CN105583234B (en) * | 2015-12-28 | 2018-04-13 | 泰尔重工股份有限公司 | A kind of PQF tandem mills spindle and its roll-changing method |
| CN106424153A (en) * | 2016-10-31 | 2017-02-22 | 泰尔重工股份有限公司 | Modified thin oil lubrication drum-shaped tooth type coupling |
| CN106424153B (en) * | 2016-10-31 | 2017-09-12 | 泰尔重工股份有限公司 | A kind of thin oil lubricating drum gear coupling of optimization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20180413 |
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| AV01 | Patent right actively abandoned |