CN203817721U - Disassembling device for heavy-load hinge pins - Google Patents
Disassembling device for heavy-load hinge pins Download PDFInfo
- Publication number
- CN203817721U CN203817721U CN201320809709.7U CN201320809709U CN203817721U CN 203817721 U CN203817721 U CN 203817721U CN 201320809709 U CN201320809709 U CN 201320809709U CN 203817721 U CN203817721 U CN 203817721U
- Authority
- CN
- China
- Prior art keywords
- bearing pin
- liquid nitrogen
- snap joint
- bearing
- copper pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 26
- 239000010949 copper Substances 0.000 claims abstract description 26
- 238000005461 lubrication Methods 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract 6
- 238000010168 coupling process Methods 0.000 abstract 6
- 238000005859 coupling reaction Methods 0.000 abstract 6
- 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 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model provides a disassembling device for heavy-load hinge pins. The disassembling device is composed of a hinge pin ejection device for ejecting the hinge pin out of a hinge pin pedestal and a hinge pin liquid nitrogen cooling device inserted into a lubricating oil hole at the center of the hinge pin. The hinge pin liquid nitrogen cooling device comprises a liquid nitrogen tank, a hand-pinching liquid absorbing ball, a liquid nitrogen discharge quick coupling, a safety vent valve, a rubber hose, a copper tube quick coupling, a copper tube and a plug screw, wherein the plug screw is screwed into the screw hole of the lubricating oil hole at the center of the hinge pin; the copper tube is mounted in a hole at the middle part of the plug screw, the right end of the copper tube is inserted into the lubricating oil hole at the center of the hinge pin to be 10mm away from the right end of the lubricating oil hole, and the copper tube quick coupling is mounted on the left end of the copper tube; the hand-pinching liquid absorbing ball, the liquid nitrogen discharge quick coupling and the safety vent valve are arranged on the liquid nitrogen tank, and the liquid nitrogen discharge quick coupling is connected with the copper tube quick coupling through the rubber hose.
Description
Technical field
The utility model relates to machinery maintenance field, relates in particular to a kind of provision for disengagement of heavily loaded bearing pin.
Background technology
Due to the needs of maintenance of equipment, general hinging pin shaft needs often dismounting, and the dismounting of heavily loaded hinging pin shaft is a difficult problem always.Heavy duty hinging pin shaft tighter with coordinating of bearing hole, have or even interference fit, add the effect that is subject to for a long time heavy load, bearing pin surface may produce local plastic deformation and oxidation corrosion, causes dismounting hinge pin very difficult.Chinese patent 201310293413.9 discloses a kind of detaching device for pin shaft, bearing pin is ejected with jack at a door-shaped frame of bearing pin bearing one side weldering, if jack top is motionless, just can only adopt the flame method of cutting off to cut off.There is following problem in this method for dismounting: 1, directly on bearing pin bearing, welding door-shaped frame can affect the intensity of bearing pin bearing, and one side top pressure can make bearing pin seat structure produce distortion, has also further increased removal force simultaneously; 2, removal force is often very large, owing to being subject to site space restriction, conventionally need to adopt large-tonnage special type jack, as dismantled stepped plate bearing pin in 2250 hot continuous rolling unit maintenance, first adopt 50 tons of jack to push, have to 160 tons of slim jack of urgent buying and just ejected; 3, while adopting the flame method of cutting off to cut off, because bearing pin is longer, cut off difficulty large, the time is long, as cuts off blast furnace gun rotary cylinder bearing pin needs several hours, and the maintenance of blast furnace gun needs to seize every minute and second.Therefore this kind of method cannot meet current maintenance duration and quality requirement.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of provision for disengagement of heavily loaded bearing pin, and this device only needs less removal force just can fast bearing pin be ejected, and does not affect bearing pin bearing intensity, can handled easily, can ensure safety again.
For solving the problems of the technologies described above, the utility model provides a kind of provision for disengagement of heavily loaded bearing pin, by for the bearing pin jack unit of bearing pin knock pin shaft stool and the bearing pin cooled with liquid nitrogen device that inserts bearing pin central lubrication oilhole are formed.
Described bearing pin cooled with liquid nitrogen device comprises that liquid nitrogen container, hand are pinched Liquid absorption ball, liquid nitrogen discharges snap joint, safety exhaust, rubber hose, copper pipe snap joint, copper pipe, plug screw, and wherein plug screw is spun in the screw of bearing pin central lubrication oilhole; Copper pipe is contained in plug screw mider hole, and right-hand member puts in from bearing pin central lubrication oilhole right-hand member 10 ㎜ places, and left end is equipped with copper pipe snap joint; On liquid nitrogen container, be furnished with hand and pinch Liquid absorption ball, liquid nitrogen discharge snap joint and safety exhaust, by rubber hose, snap joint is connected with copper pipe in its liquid nitrogen discharge snap joint.
Described bearing pin jack unit comprises stay-bolt, nut, baffle plate, footstock, separated type hydraulic jack, supporting plate, adjusting seat, adjustment bolt; Described footstock passes through stay-bolt, nut and baffle plate clamping on bearing pin bearing; Supporting plate is placed in footstock, regulates its height by adjusting seat and adjustment bolt; Separated type hydraulic jack is placed on the supporting plate in footstock, its center and bearing pin central alignment.
Design principle of the present utility model is: according to the principle of expanding with heat and contracting with cold of metal, utilize liquid nitrogen to carry out cooling fast by bearing pin cooling device to bearing pin 7, bearing pin 7 sizes are dwindled, from becoming compared with loose fit compared with tight fit of original and bearing pin bearing 4, so only need less removal force just bearing pin 7 can be ejected; Adopt monoblock type footstock 8 structures, and by stay-bolt 1 and baffle plate 3 clampings on bearing pin bearing 4, both eliminated and on bearing pin bearing 4, welded the impact of door-shaped frame on bearing pin bearing semi-finals degree, also avoided because of monolateral stressed distortion and the damage that causes bearing pin bearing 4.
The utility model dismantlement work process is: pull down bearing pin 7 left end central lubrication oilhole lubricating cups, remove the lubricating oil in bearing pin 7 central lubrication oilholes, bearing pin cooled with liquid nitrogen device is arranged on bearing pin 7 central lubrication oilholes, then by bearing pin jack unit clamping on bearing pin bearing 4; Highly make separated type hydraulic jack 9 centers and bearing pin 7 central alignments by the supporting plate 10 of adjusting in footstock 8, press separated type hydraulic jack 9 hand oil pumps bearing pin 7 is pushed up in advance; Pinch Liquid absorption ball 14(or foot-operated cylinder by the hand on liquid nitrogen container 13) by the liquid nitrogen supercharging in liquid nitrogen container 13, making liquid nitrogen in liquid nitrogen container 13 discharge snap joint 15, rubber hose 17, copper pipe snap joint 18 and copper pipe 19 by liquid nitrogen is delivered directly to bearing pin 7 central lubrication oilhole right parts and enters bearing pin central lubrication oilhole, bearing pin 7 is carried out cooling fast, the nitrogen after gasification by plug screw 20 upper discharge hole discharge; In the time that becoming flexible appears in bearing pin 7, stop, for liquid nitrogen, pressing fast separated type hydraulic jack 9 hand oil pumps bearing pin 7 being ejected.Owing to being provided with adjustable supporting plate 10 in footstock 8, not only easy to operate, while also avoiding dismounting to finish, jack directly falls down, and produces potential safety hazard.After bearing pin 7 shrinkages, eject, there will not be owing to pushing up by force to press and cause pulling of bearing pin and bearing pin bearing hole surface, ensured repair quality.
The utility model has the advantages that: this device adopts monoblock type footstock, and by stay-bolt and baffle plate clamping on bearing pin bearing, eliminated and on bearing pin bearing, welded the impact of door-shaped frame on bearing pin bearing intensity; Adopt bearing pin cooled with liquid nitrogen device, only need less removal force just bearing pin can be ejected, without adopting large-tonnage special type jack; Adopt adjustable supporting plate, both facilitated operation, ensured again safety; After bearing pin shrinkage, eject, there will not be owing to pushing up by force to press and cause pulling of bearing pin and bearing pin bearing hole surface, ensured repair quality.This apparatus structure is simply novel, and fitting operation is convenient.The difficult problem that this device has solved heavily loaded difficulty tears dismounting hinge pin open, adopts cooled with liquid nitrogen device, and liquid nitrogen consumption is few, and cost is low, directly and indirect benefit considerable.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is elaborated.
Fig. 1: the utility model top view.
Fig. 2: the front view of the utility model bearing pin jack unit.
Fig. 3: the schematic diagram of the utility model bearing pin cooled with liquid nitrogen device liquid nitrogen container.
Fig. 4: the cutaway view of the utility model bearing pin cooled with liquid nitrogen device.
In figure: 1 stay-bolt, 2 nuts, 3 baffle plates, 4 bearing pin bearings, 5 homalocephalus, 6 pin sleeves, 7 bearing pins, 8 footstocks, 9 separated type hydraulic jacks, 10 supporting plates, 11 adjusting seats, 12 adjust bolt, 13 liquid nitrogen containers, 14 hands are pinched Liquid absorption ball, 15 liquid nitrogen discharge snap joints, 16 safety exhausts, 17 rubber hose, 18 copper pipe snap joints, 19 copper pipes, 20 plug screws, 21 central lubrication oilholes, 22 steam vents.
Detailed description of the invention
From Fig. 1, Fig. 2, Fig. 3, Fig. 4, the provision for disengagement of a kind of heavily loaded bearing pin of the utility model, comprises bearing pin jack unit and bearing pin cooled with liquid nitrogen device.Bearing pin jack unit comprises stay-bolt 1, nut 2, baffle plate 3, footstock 8, separated type hydraulic jack 9, supporting plate 10, adjusting seat 11, adjusts bolt 12, and wherein footstock 8 passes through stay-bolt 1, nut 2 and baffle plate 3 clampings on bearing pin bearing 4; Supporting plate 10 is placed in footstock 8, regulates its height by adjusting seat 11 and adjustment bolt 12; Separated type hydraulic jack 9 is placed on the supporting plate 10 in footstock 8, its center and bearing pin 7 central alignments.Bearing pin cooled with liquid nitrogen device comprises that liquid nitrogen container 13, hand are pinched Liquid absorption ball 14, liquid nitrogen discharges snap joint 15, safety exhaust 16, rubber hose 17, copper pipe snap joint 18, copper pipe 19, plug screw 20, wherein plug screw 20 is spun in the screw of bearing pin 7 left end central lubrication oilholes 21, oilhole depth requirements is identical with bearing pin bearing length of fit with bearing pin, and top is drilled with steam vent 22; Copper pipe 19 is contained in plug screw 20 mider holes, and right-hand member puts in from bearing pin 7 central lubrication oilhole right-hand member 10 ㎜ places, and left end is equipped with copper pipe snap joint 18; On liquid nitrogen container 13, be furnished with hand and pinch Liquid absorption ball 14, liquid nitrogen discharge snap joint 15 and safety exhaust 16, its liquid nitrogen discharge snap joint 15 is connected with copper pipe snap joint 18 by rubber hose 17.
Claims (2)
1. a provision for disengagement for heavily loaded bearing pin, is characterized in that: described provision for disengagement is by for forming the bearing pin jack unit of bearing pin knock pin shaft stool and the bearing pin cooled with liquid nitrogen device that inserts bearing pin central lubrication oilhole;
Described bearing pin cooled with liquid nitrogen device comprises that liquid nitrogen container, hand are pinched Liquid absorption ball, liquid nitrogen discharges snap joint, safety exhaust, rubber hose, copper pipe snap joint, copper pipe, plug screw, and wherein plug screw is spun in the screw of bearing pin central lubrication oilhole; Copper pipe is contained in plug screw mider hole, and right-hand member puts in from bearing pin central lubrication oilhole right-hand member 10 ㎜ places, and left end is equipped with copper pipe snap joint; On liquid nitrogen container, be furnished with hand and pinch Liquid absorption ball, liquid nitrogen discharge snap joint and safety exhaust, by rubber hose, snap joint is connected with copper pipe in its liquid nitrogen discharge snap joint;
Described bearing pin jack unit comprises stay-bolt, nut, baffle plate, footstock, separated type hydraulic jack, supporting plate, adjusting seat, adjustment bolt; Described footstock passes through stay-bolt, nut and baffle plate clamping on bearing pin bearing; Supporting plate is placed in footstock, regulates its height by adjusting seat and adjustment bolt; Separated type hydraulic jack is placed on the supporting plate in footstock, its center and bearing pin central alignment.
2. the provision for disengagement of heavily loaded bearing pin as claimed in claim 1, is characterized in that: described bearing pin central lubrication oilhole depth requirements is identical with bearing pin bearing length of fit with bearing pin, and top is drilled with steam vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809709.7U CN203817721U (en) | 2013-12-11 | 2013-12-11 | Disassembling device for heavy-load hinge pins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320809709.7U CN203817721U (en) | 2013-12-11 | 2013-12-11 | Disassembling device for heavy-load hinge pins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203817721U true CN203817721U (en) | 2014-09-10 |
Family
ID=51473264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320809709.7U Expired - Lifetime CN203817721U (en) | 2013-12-11 | 2013-12-11 | Disassembling device for heavy-load hinge pins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203817721U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353988A (en) * | 2014-10-19 | 2015-02-18 | 车晋绥 | Cold and hot temperature difference assembled and disassembled gear device |
| CN105414884A (en) * | 2015-11-04 | 2016-03-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for replacing pin roll of external adjustment sheet |
| CN108188702A (en) * | 2017-12-29 | 2018-06-22 | 江苏百崮钢结构工程有限公司 | A kind of gate bottom flatcar disassembling system and its technique |
| CN108453662A (en) * | 2017-02-22 | 2018-08-28 | 湖南大学 | A kind of thin-wall shaft sleeve disassembling apparatus and disassembling method |
| CN111451715A (en) * | 2020-04-17 | 2020-07-28 | 攀钢集团西昌钢钒有限公司 | Pin shaft dismounting tool and method |
| CN113334310A (en) * | 2021-05-12 | 2021-09-03 | 浙江省建设工程机械集团有限公司 | Pin shaft dismounting device |
| CN113814701A (en) * | 2021-10-25 | 2021-12-21 | 山东里能鲁西矿业有限公司 | Mining coal mining hydraulic pin dismounting device and matched dismounting method |
| CN113977253A (en) * | 2021-11-29 | 2022-01-28 | 广东华电韶关热电有限公司 | Rapid turbine coupling bolt disassembling tool and using method |
| CN114055104A (en) * | 2020-07-31 | 2022-02-18 | 宝武装备智能科技有限公司 | Dismounting device for mud beating mechanism of iron-making blast furnace |
| CN114260687A (en) * | 2022-02-10 | 2022-04-01 | 山东科技大学 | Hydraulic support round pin axle assembly and disassembly equipment |
-
2013
- 2013-12-11 CN CN201320809709.7U patent/CN203817721U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353988A (en) * | 2014-10-19 | 2015-02-18 | 车晋绥 | Cold and hot temperature difference assembled and disassembled gear device |
| CN105414884A (en) * | 2015-11-04 | 2016-03-23 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for replacing pin roll of external adjustment sheet |
| CN105414884B (en) * | 2015-11-04 | 2017-11-21 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of method that outer adjustment sheet changes bearing pin |
| CN108453662A (en) * | 2017-02-22 | 2018-08-28 | 湖南大学 | A kind of thin-wall shaft sleeve disassembling apparatus and disassembling method |
| CN108188702A (en) * | 2017-12-29 | 2018-06-22 | 江苏百崮钢结构工程有限公司 | A kind of gate bottom flatcar disassembling system and its technique |
| CN111451715A (en) * | 2020-04-17 | 2020-07-28 | 攀钢集团西昌钢钒有限公司 | Pin shaft dismounting tool and method |
| CN114055104A (en) * | 2020-07-31 | 2022-02-18 | 宝武装备智能科技有限公司 | Dismounting device for mud beating mechanism of iron-making blast furnace |
| CN114055104B (en) * | 2020-07-31 | 2023-11-17 | 宝武装备智能科技有限公司 | Dismounting method of dismounting device of mud beating mechanism of iron-smelting blast furnace |
| CN113334310A (en) * | 2021-05-12 | 2021-09-03 | 浙江省建设工程机械集团有限公司 | Pin shaft dismounting device |
| CN113814701A (en) * | 2021-10-25 | 2021-12-21 | 山东里能鲁西矿业有限公司 | Mining coal mining hydraulic pin dismounting device and matched dismounting method |
| CN113977253A (en) * | 2021-11-29 | 2022-01-28 | 广东华电韶关热电有限公司 | Rapid turbine coupling bolt disassembling tool and using method |
| CN114260687A (en) * | 2022-02-10 | 2022-04-01 | 山东科技大学 | Hydraulic support round pin axle assembly and disassembly equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |