CN103612107A - Universal tool capable of quickly disassembling various components - Google Patents
Universal tool capable of quickly disassembling various components Download PDFInfo
- Publication number
- CN103612107A CN103612107A CN201310599579.3A CN201310599579A CN103612107A CN 103612107 A CN103612107 A CN 103612107A CN 201310599579 A CN201310599579 A CN 201310599579A CN 103612107 A CN103612107 A CN 103612107A
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- hydraulic cylinder
- push rod
- hydraulic
- baffle plate
- mandrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/025—For detaching only
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a universal tool capable of quickly disassembling various components, and belongs to the technical field of maintenance tools. The universal tool is used for quickly disassembling the various components such as jaws of work rolls, motor connectors and journal gears. The technical scheme includes that a hydraulic pump station and a hydraulic cylinder height adjusting support are fixed onto a movable trolley, a cylinder body of a hydraulic cylinder is mounted on the hydraulic cylinder height adjusting support, a hydraulic pipeline of the hydraulic pump station is connected with the hydraulic cylinder, and a push rod of the hydraulic cylinder is connected with a disassembling device; a connecting ring of the disassembling device is connected with the hydraulic cylinder, connecting rods are connected between the connecting ring and a fixture, and an ejector rod is positioned between the push rod of the hydraulic cylinder and a disassembled component; the fixture is a mandrel or a barrier. The universal tool has the advantages that the universal tool is simple in structure and convenient to use; the maximum designed press-in force F can reach 200T, so that requirements of fields can be completely met, the jaws of the work rolls, the motor connectors, the journal gears, belt pulleys and the like can be quickly disassembled, damage to machines can be prevented, the production cost can be reduced, and the universal tool has an obvious economic benefit and is high in practicality.
Description
Technical field
The present invention relates to a kind of quick release and rectify the instrument of the multiple parts such as roller machine working roll jaw, motor catcher, axle journal gear, belong to maintenance tool technical field.
Background technology
In metallurgy industry, working roller of straightening machine jaw, motor catcher, axle journal gear and belt pulley etc. need frequent replacing, remove.The method for dismounting generally adopting at present has two kinds, the first is artificial gas cutting heating dismounting method, and this method is when removing above-mentioned part, and the parts that needs are removed are used acetylene homogeneous heating to 200 degree Celsius left and right, cause parts endoporus to expand and become large, then struck down with sledgehammer; Second method is jack stand dismounting method, this method is according to component shape size and jack length dimension used, make in advance a kind of removal bracket, jack with need to remove parts and be put into same level position, direction is vertical, support casing, in jack and parts outside, is suppressed or rotated jack and parts can be pulled down.
These two kinds of methods respectively have pluses and minuses.First method is not easy to operate, and security is not high, due to acetylene heating-up temperature and the bad control of heated perimeter, very easily cause the interior axle of parts or installing component scrap and can not use, spare parts cost increases considerably, and is only applicable to the less situation of member profile, if parts are crossed senior general, cannot heat.Second method is simple to operate, but need to make in advance removal bracket, fabrication cycle is longer, and removal force is little, once run into parts and the excessive situation of interior axle use level, to be difficult to pull down, component sizes shape is different simultaneously, and every kind of removal bracket can only be used on a kind of parts, all makes removal bracket cost too high, choose and use difficulty, be difficult for realizing.Because above-mentioned two kinds of methods all can not meet the needs of production, it is very necessary designing a kind of universal instrument that can dismantle safely and fast multiple parts.
Summary of the invention
Technical problem to be solved by this invention is to provide the general utility tool of the multiple parts of a kind of quick release, this instrument has enough large removal force, can directly dismantle the multiple parts such as working roller of straightening machine jaw, motor catcher, axle journal gear, easy to use, can not cause damage to machinery, reach the object that reduces production costs, reduces maintenance load and labour intensity.
The technical scheme solving the problems of the technologies described above is:
The general utility tool of the multiple parts of a kind of quick release, it is comprised of travelling car, fluid pressure drive device, provision for disengagement three parts, fluid pressure drive device comprises that hydraulic power unit, hydraulic cylinder height regulate support, hydraulic cylinder, hydraulic power unit and hydraulic cylinder height regulate support to be fixed on travelling car, the cylinder body of hydraulic cylinder is arranged on hydraulic cylinder height and regulates on support, the fluid pressure line of hydraulic power unit is connected with hydraulic cylinder, and the push rod of hydraulic cylinder is connected with provision for disengagement.
The general utility tool of the multiple parts of above-mentioned quick release, described provision for disengagement comprises connecting ring, connecting rod, push rod and jig, the inner hole wall of connecting ring has screw thread, on the outer wall of hydraulic cylinder front end, there is screw thread, the endoporus of connecting ring is spun on the outer wall of hydraulic cylinder front end, on the anchor ring of the both sides of connecting ring, there is connecting hole, the connecting hole that connecting ring both sides are passed respectively in one end of two connecting rods is by fastening nuts, the other end of two connecting rods is connected with jig, one end of push rod is connected with fluid pressure drive device, and the other end of push rod is with to be disassembled parts relative.
The general utility tool of the multiple parts of above-mentioned quick release, described jig is mandrel, the middle part of mandrel is cylinder, and cylinder matches with the entry of the working roll jaw one end being disassembled, and the cylindrical two ends of mandrel are welded with respectively baffle plate, on baffle plate, there is connecting hole, the other end of connecting rod is through connecting hole by fastening nuts, and there is jogger hole at the center of mandrel, and push rod is through jogger hole, one end of push rod is connected with the push rod front end of hydraulic cylinder, and the other end of push rod is relative with the working roll that jaw is installed.
The general utility tool of the multiple parts of above-mentioned quick release, described jig is baffle plate, baffle plate is rectangular slab, middle part one side of baffle plate has U-shaped opening, on the plate face of U-shaped opening both sides, have equidistant connecting hole, two connecting rods pass respectively connecting hole by fastening nuts, and push rod is through the U-shaped opening of baffle plate, one end of push rod is connected with the push rod front end of hydraulic cylinder, and the other end of push rod is relative with the motor shaft that installation is disassembled motor catcher.
The invention has the beneficial effects as follows:
Provision for disengagement of the present invention is connected with hydraulic cylinder, the jig of provision for disengagement be disassembled parts and be connected, push rod through jig with to be disassembled parts relative, hydraulic cylinder push rod promotes push rod and withstands on the front end that is disassembled parts, to be disassembled parts dismounting, hydraulic cylinder height regulates height that support can regulator solution cylinder pressure and to be disassembled parts height suitable, travelling car can movable hydraulic drive unit with provision for disengagement and a plurality of positions to be disassembled parts corresponding.The present invention is reasonable in design, simple in structure, easy to use, and design pressing-in force F maximum can reach 200T, meets on-the-spot demand completely.The present invention can quick-detachment working roll jaw, motor catcher, axle journal gear and belt pulley etc., can not damage machinery simultaneously, and some parts under dismounting can be reused, reduced production cost, maintenance load and labor strength have been reduced, there is significant economic benefit, be worthy of popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is another kind of structural representation of the present invention
Fig. 3 is the structural representation of travelling car and fluid pressure drive device;
Fig. 4 is a kind of structural representation of provision for disengagement
Fig. 5 is the structural representation of another kind of provision for disengagement;
Fig. 6 is the structural representation of connecting ring;
Fig. 7 is the structural representation of mandrel;
Fig. 8 is the structural representation of baffle plate.
In figure, mark is as follows: travelling car 1, hydraulic power unit 2, hydraulic cylinder height regulate support 3, hydraulic cylinder 4, connecting ring 5, connecting rod 6, mandrel 7, push rod 8, jaw 9, working roll 10, oil-in 11, oil return opening 12, adjusting nut 13, baffle plate 14, motor catcher 15, motor shaft 16.
The specific embodiment
The present invention is a kind of general utility tool of dismantling multiple component of machine, can directly dismantle the multiple parts such as working roller of straightening machine jaw, motor catcher, axle journal gear.
The present invention is comprised of travelling car 1, fluid pressure drive device, provision for disengagement three parts.
Fluid pressure drive device is fixed on travelling car 1, provision for disengagement is connected with fluid pressure drive device, fluid pressure drive device drives provision for disengagement that the multiple parts such as working roll jaw 9, motor catcher 15, axle journal gear are pulled down, travelling car 1 can movable hydraulic drive unit with provision for disengagement and a plurality of diverse locations to be disassembled parts corresponding.
In figure, show, fluid pressure drive device comprises that hydraulic power unit 2, hydraulic cylinder height regulate support 3, hydraulic cylinder 4.Hydraulic power unit 2 and hydraulic cylinder height regulate support 3 to be fixed on travelling car 1, the cylinder body of hydraulic cylinder 4 is arranged on hydraulic cylinder height and regulates on support 3, hydraulic cylinder 4 can regulate support 3 move up and down at hydraulic cylinder height by adjusting nut 13, and hydraulic cylinder height regulates the height that support 3 can regulator solution cylinder pressure 4 suitable with the height that is disassembled parts.The fluid pressure line of hydraulic power unit 2 is connected with hydraulic cylinder 4, has oil-in 11, oil return opening 12 on hydraulic cylinder 4, and the push rod of hydraulic cylinder 4 promotes provision for disengagement and carries out field-strip.
Provision for disengagement of the present invention can be divided into two classes according to being disassembled parts, and a class is working roller of straightening machine jaw, and another kind of is motor catcher and gear, belt pulley etc.
Working roller of straightening machine jaw 9 is arranged on working roll 10 axle heads, adopts slide block type to connect with universal-joint spindle.Working roll axle journal and jaw are interference fit, the magnitude of interference δ max=0.028mm that it is maximum, length of fit is 240mm, pressing-in force F is very large, be 138.2T as calculated, by jack stand dismounting method and artificial gas cutting heating dismounting method, cannot remove, originally change working roller of straightening machine is all to cut off jaw by air gun at every turn, both waste of manpower, strengthens cost and easily damages again the working roll diameter of axle.
In figure, show, the device of dismounting working roller of straightening machine jaw class of the present invention comprises connecting ring 5, connecting rod 6, push rod 8 and jig.The inner hole wall of connecting ring 5 has screw thread, on the outer wall of hydraulic cylinder 4 front ends, there is screw thread, the endoporus of connecting ring 5 is spun on the outer wall of hydraulic cylinder 4 front ends, on the anchor ring of the both sides of connecting ring 5, there is connecting hole, the connecting hole that connecting ring 5 both sides are passed respectively in one end of two connecting rods 6 is by fastening nuts, the other end of two connecting rods 6 is connected with jig, and one end of push rod 8 is connected with fluid pressure drive device, and the other end of push rod 8 is with to be disassembled parts relative.
Jig is mandrel 7, and the effect of mandrel 7 is location jaws 9, sideslip not in loading process.The middle part of mandrel 7 is cylinder, and cylinder matches with the entry of jaw 9 one end that are disassembled, and cylinder top is designed with circular positioning table, the location for mandrel 7 at the vertical direction of jaw.The cylindrical two ends of mandrel 7 are welded with respectively baffle plate, have connecting hole on baffle plate, and the other end of connecting rod 6 passes connecting hole by fastening nuts.Push rod 8 is cylinder axis, by the through hole at mandrel 7 centers, be arranged on the center of whole provision for disengagement, be mainly used in the driving force of transmission fluid cylinder pressure 4, the push rod of one end connecting fluid cylinder pressure 4 of push rod 8, the other end is relative with the working roll 10 that jaw 9 is installed, and by hydraulic cylinder 4, drives push rod 8, can realize the quick-detachment of jaw 9.
In figure, show, the device of dismounting motor catcher 15 of the present invention, gear, belt pulley class comprises connecting ring 5, connecting rod 6, push rod 8 and jig equally.The structure of connecting ring 5, connecting rod 6, push rod 8 and mounting means are identical with connecting ring 5, connecting rod 6, the push rod 8 of the device of dismounting working roller of straightening machine jaw, and jig is different according to the structure that is disassembled parts.
Jig is baffle plate 14, and baffle plate 14 is rectangular slab, and middle part one side of baffle plate 14 has U-shaped opening, on the plate face of U-shaped opening both sides, has equidistant connecting hole, and two connecting rods 6 pass respectively connecting hole by fastening nuts.Push rod 8 is through the U-shaped opening of baffle plate 14, and one end of push rod 8 is connected with the push rod front end of hydraulic cylinder 4, and the other end of push rod 8 is relative with the motor shaft 16 that installation is disassembled motor catcher 15.Connecting rod 6 is used in conjunction with baffle plate 14, and the U-shaped open card of baffle plate 14 is at the boss position of motor catcher 15, and for extracting gear, motor catcher 15 or belt pulley etc., connecting rod 6 is realized the adjusting of length by the nut of adjustment end.
Using method of the present invention is as follows:
The using method of dismounting working roller of straightening machine prong device:
With overhead traveling crane, smoothing roll (containing jaw) is hung to correct position, require jaw direction 2m with interior clear, shift hydraulic trolley 1 onto jaw the place ahead, by hydraulic cylinder, regulate the adjusting nut 13 on height bracket 3, fast the plunger center of hydraulic cylinder 4 is risen to jaw 9 centers to same level line.The mode that connecting ring 5 is threaded connection is assembled on the cylinder body of hydraulic cylinder 4, mandrel 7 is inserted into jaw 9 inside, utilize connecting rod 6 that connecting ring 5 and mandrel 7 are linked to be to a stressed integral body, center by push rod 8 through mandrel 7, be placed in the middle of hydraulic cylinder 4 and working roll 10, electric button in operation hydraulic trolley 1, moves forward hydraulic cylinder 4 push rods, drives push rod 8 that jaw 9 is extracted from working roll 10.
The using method of the devices such as dismounting motor catcher, gear, belt pulley:
With overhead traveling crane, motor (containing motor catcher 15) is hung to correct position, require motor catcher direction 2m with interior clear, shift hydraulic trolley 1 onto motor and take over 15 the place aheads, by regulator solution cylinder pressure height, regulate the adjusting nut 13 on support 3, fast the push rod center of hydraulic cylinder 4 is risen to motor shaft 16 centers to same level line.The mode that connecting ring 5 is threaded connection is assembled on the cylinder body of hydraulic cylinder 4, boss position by the U-shaped open card of baffle plate 14 at motor catcher 15, utilize connecting rod 6 that connecting ring 5 and baffle plate 14 are linked to be to a stressed integral body, push rod 8 is placed in to the centre of hydraulic cylinder 4 and motor shaft 16, electric button in operation hydraulic trolley 1, the push rod of hydraulic cylinder 4 is moved forward, drive push rod 8 that motor catcher 15 is extracted from motor shaft 16.
Claims (4)
1. the general utility tool of the multiple parts of quick release, it is characterized in that: it is by travelling car (1), fluid pressure drive device, provision for disengagement three parts form, fluid pressure drive device comprises hydraulic power unit (2), hydraulic cylinder height regulates support (3), hydraulic cylinder (4), hydraulic power unit (2) and hydraulic cylinder height regulate support (3) to be fixed on travelling car (1), the cylinder body of hydraulic cylinder (4) is arranged on hydraulic cylinder height and regulates on support (4), the fluid pressure line of hydraulic power unit (2) is connected with hydraulic cylinder (4), the push rod of hydraulic cylinder (4) is connected with provision for disengagement.
2. the general utility tool of the multiple parts of quick release according to claim 1, it is characterized in that: described provision for disengagement comprises connecting ring (5), connecting rod (6), push rod (8) and jig, the inner hole wall of connecting ring (5) has screw thread, on the outer wall of hydraulic cylinder (4) front end, there is screw thread, the endoporus of connecting ring (5) is spun on the outer wall of hydraulic cylinder (4) front end, on the anchor ring of the both sides of connecting ring (5), there is connecting hole, the connecting hole that connecting ring (5) both sides are passed respectively in one end of two connecting rods (6) is by fastening nuts, the other end of two connecting rods (6) is connected with jig, one end of push rod (8) is connected with fluid pressure drive device, the other end of push rod (8) is with to be disassembled parts relative.
3. the general utility tool of the multiple parts of quick release according to claim 2, it is characterized in that: described jig is mandrel (7), the middle part of mandrel (7) is cylinder, cylinder matches with the entry of working roll jaw (9) one end being disassembled, the cylindrical two ends of mandrel (7) are welded with respectively baffle plate, on baffle plate, there is connecting hole, the other end of connecting rod (6) passes connecting hole by fastening nuts, there is jogger hole at the center of mandrel (7), push rod (8) is through jogger hole, one end of push rod (8) is connected with the push rod front end of hydraulic cylinder (4), the other end of push rod (8) is relative with the working roll (10) that jaw (9) is installed.
4. the general utility tool of the multiple parts of quick release according to claim 2, it is characterized in that: described jig is baffle plate (14), baffle plate (14) is rectangular slab, middle part one side of baffle plate (14) has U-shaped opening, on the plate face of U-shaped opening both sides, there is equidistant connecting hole, two connecting rods (6) pass respectively connecting hole by fastening nuts, push rod (8) is through the U-shaped opening of baffle plate (14), one end of push rod (8) is connected with the push rod front end of hydraulic cylinder (4), the other end of push rod (8) is relative with the motor shaft (16) that installation is disassembled motor catcher (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599579.3A CN103612107B (en) | 2013-11-25 | 2013-11-25 | The general utility tool of the multiple parts of a kind of quick release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310599579.3A CN103612107B (en) | 2013-11-25 | 2013-11-25 | The general utility tool of the multiple parts of a kind of quick release |
Publications (2)
| Publication Number | Publication Date |
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| CN103612107A true CN103612107A (en) | 2014-03-05 |
| CN103612107B CN103612107B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310599579.3A Expired - Fee Related CN103612107B (en) | 2013-11-25 | 2013-11-25 | The general utility tool of the multiple parts of a kind of quick release |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339139A (en) * | 2014-10-23 | 2015-02-11 | 山东钢铁股份有限公司 | Device and method for disassembling external member from internal member |
| CN106195440A (en) * | 2016-08-25 | 2016-12-07 | 中国水利水电第十三工程局有限公司 | Water supply line construction pipe drawing device and tube drawing construction method |
| CN108620849A (en) * | 2018-05-10 | 2018-10-09 | 中国化学工程第三建设有限公司 | A kind of reciprocating compressor crosshead pin punching machine |
| CN108705285A (en) * | 2018-07-13 | 2018-10-26 | 中铝瑞闽股份有限公司 | A kind of machine row Coupling provision for disengagement and its working method |
| CN108927652A (en) * | 2017-05-26 | 2018-12-04 | 宝山钢铁股份有限公司 | Bearing assembly dismounts tooling |
| CN109262238A (en) * | 2018-10-19 | 2019-01-25 | 中车长春轨道客车股份有限公司 | Rail vehicle wears away bushing dismounting device and method for dismounting |
| CN109940550A (en) * | 2019-03-29 | 2019-06-28 | 江苏核电有限公司 | A kind of rolling bearing disassembly general utility tool |
| CN111940510A (en) * | 2019-05-17 | 2020-11-17 | 宝武特种冶金有限公司 | Dismounting device and method for seamless steel pipe cold rolling expansion plug |
| CN111992939A (en) * | 2020-08-27 | 2020-11-27 | 无锡市新莱珂机械有限公司 | Welding expansion core, limiting installation mechanism of welding expansion core and stripping mechanism of welding expansion core |
| CN112264959A (en) * | 2020-10-29 | 2021-01-26 | 江西和美陶瓷有限公司 | Device and method for automatically disassembling pulley of brick walking line of wall and floor tiles |
| CN113523768A (en) * | 2021-07-20 | 2021-10-22 | 成都中车电机有限公司 | Test gear disassembling device and using method thereof |
| CN114083227A (en) * | 2021-12-08 | 2022-02-25 | 二重（德阳）重型装备有限公司 | Flat head cover assembly and disassembly tools |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339139A (en) * | 2014-10-23 | 2015-02-11 | 山东钢铁股份有限公司 | Device and method for disassembling external member from internal member |
| CN106195440A (en) * | 2016-08-25 | 2016-12-07 | 中国水利水电第十三工程局有限公司 | Water supply line construction pipe drawing device and tube drawing construction method |
| CN106195440B (en) * | 2016-08-25 | 2018-08-21 | 中国水利水电第十三工程局有限公司 | Water supply line construction pipe drawing device and tube drawing construction method |
| CN108927652B (en) * | 2017-05-26 | 2020-09-25 | 宝山钢铁股份有限公司 | Bearing assembly dismounting tool |
| CN108927652A (en) * | 2017-05-26 | 2018-12-04 | 宝山钢铁股份有限公司 | Bearing assembly dismounts tooling |
| CN108620849A (en) * | 2018-05-10 | 2018-10-09 | 中国化学工程第三建设有限公司 | A kind of reciprocating compressor crosshead pin punching machine |
| CN108705285A (en) * | 2018-07-13 | 2018-10-26 | 中铝瑞闽股份有限公司 | A kind of machine row Coupling provision for disengagement and its working method |
| CN108705285B (en) * | 2018-07-13 | 2023-10-13 | 中铝瑞闽股份有限公司 | Disassembling device for machine socket connector and working method thereof |
| CN109262238A (en) * | 2018-10-19 | 2019-01-25 | 中车长春轨道客车股份有限公司 | Rail vehicle wears away bushing dismounting device and method for dismounting |
| CN109940550A (en) * | 2019-03-29 | 2019-06-28 | 江苏核电有限公司 | A kind of rolling bearing disassembly general utility tool |
| CN111940510A (en) * | 2019-05-17 | 2020-11-17 | 宝武特种冶金有限公司 | Dismounting device and method for seamless steel pipe cold rolling expansion plug |
| CN111940510B (en) * | 2019-05-17 | 2022-09-23 | 宝武特种冶金有限公司 | Dismounting device and method for seamless steel pipe cold rolling expansion plug |
| CN111992939A (en) * | 2020-08-27 | 2020-11-27 | 无锡市新莱珂机械有限公司 | Welding expansion core, limiting installation mechanism of welding expansion core and stripping mechanism of welding expansion core |
| CN112264959A (en) * | 2020-10-29 | 2021-01-26 | 江西和美陶瓷有限公司 | Device and method for automatically disassembling pulley of brick walking line of wall and floor tiles |
| CN113523768A (en) * | 2021-07-20 | 2021-10-22 | 成都中车电机有限公司 | Test gear disassembling device and using method thereof |
| CN114083227A (en) * | 2021-12-08 | 2022-02-25 | 二重（德阳）重型装备有限公司 | Flat head cover assembly and disassembly tools |
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| Publication number | Publication date |
|---|---|
| CN103612107B (en) | 2016-01-20 |
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Address after: 056015 Fuxing Road, Hebei, Handan, No. 232 Patentee after: Handan Branch of Hegang Co.,Ltd. Address before: 056015 Fuxing Road, Hebei, Handan, No. 232 Patentee before: HEBEI IRON & STEEL Co.,Ltd.HANDAN BRANCH |
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Effective date of registration: 20180409 Address after: 056015 Fuxing Road, Hebei, Handan, No. 232 Co-patentee after: HANDAN RUIDA KINETIC ENERGY CO.,LTD. Patentee after: Handan Branch of Hegang Co.,Ltd. Address before: 056015 Fuxing Road, Hebei, Handan, No. 232 Patentee before: Handan Branch of Hegang Co.,Ltd. |
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