CN204387043U - Jackscrew locking anti-back bearing pin - Google Patents
Jackscrew locking anti-back bearing pin Download PDFInfo
- Publication number
- CN204387043U CN204387043U CN201420845925.1U CN201420845925U CN204387043U CN 204387043 U CN204387043 U CN 204387043U CN 201420845925 U CN201420845925 U CN 201420845925U CN 204387043 U CN204387043 U CN 204387043U
- Authority
- CN
- China
- Prior art keywords
- bearing pin
- pin
- jackscrew
- hole
- locking anti
- 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.)
- Active
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Jackscrew locking anti-back bearing pin, comprises bearing pin, jackscrew and pin.Bearing pin is cylindrical, and jackscrew is the nose cone of band fluting, and pin is circular arc head; Bore the through hole of four square crossings in the cylndrical surface of bearing pin, interior device four pins, be Spielpassung between each pin and through hole, jackscrew head does not expose the end face of bearing pin.Pin is stainless steel, and processing roughness is 3.2 ~ 1.6 μm; Four cotter length equalizations, each length 2 ~ 3mm shorter in bearing pin radius size; End part of pin shaft ream (40 ~ 45mm) × (20 ~ 25mm) counterbore.The utility model reliable lock, installing/dismounting is simple to operate.
Description
Technical field
The utility model belongs to mechanical parts, is the locking bearing pin of a kind of novel anti-back.
Background technique
Steel plant continuous casting power traction spindle blade is saved by more piece dummy ingot and forms, and is connected between every two joints by common cylinder bearing pin.In order to prevent exiting of bearing pin, adopting between bearing pin and dummy ingot save and joining holes drilled through and intert cylindrical elastomer barrel bolt and fix.But dummy bar and bearing pin can, by water shower, cause the fitting surface of cylindrical elastomer barrel bolt to be bondd by corrosion when producing.When changing bearing pin, cylindrical elastomer barrel bolt can unload out due to corrosion, and bearing pin also just cannot draw off and change.At this moment often only have and adopt gas cutting penetrating method destruction removal to change again, this brings great puzzlement, also cost of idleness of wasting time and energy to the maintenance of equipment.
Model utility content
The utility model aims to provide a kind of jackscrew locking anti-back bearing pin, as long as moved back and conveniently can draw off bearing pin by jackscrew pine when dismounting or replacing.
The technical solution of the utility model:
Jackscrew locking anti-back bearing pin, comprises bearing pin, jackscrew and pin.Bearing pin is cylindrical, and jackscrew is the nose cone of band fluting, and pin is circular arc head; Bore the through hole of four square crossings in the cylndrical surface of bearing pin, device four pins in through hole, be Spielpassung between each pin and through hole, jackscrew head does not expose the end face of bearing pin.
Further, described pin is preferably stainless steel, and processing roughness is 3.2 ~ 1.6um; Four cotter length equalizations, each length 2 ~ 3mm. shorter in bearing pin radius size
Further, described end part of pin shaft ream (40 ~ 45mm) × (20 ~ 25mm) counterbore.
The nose cone stainless steel jackscrew utilizing end face to load during use screws generation and moves axially, and touches the pin of circular arc head, makes pin produce radial displacement, thus reaches and hold out against fixing effect.
The progressive effect of model utility: owing to only bearing positive pressure when dummy bar works, can not produce the power that bearing pin is moved back toward both sides pine, so the pressure of 4 pins only need bear vibration force own when dummy bar runs; Travel forward because dummy bar only produces in operation production process, there is no teeter, so bearing pin can not bear axial force.So the utility model reliable lock, installing/dismounting is simple to operate.
Accompanying drawing explanation
Fig. 1 is model utility structural representation.
Fig. 2 is A-A sectional view.
Fig. 3 is jackscrew structural representation.
Fig. 4 is pin shaft structure schematic diagram.
In figure: 1-bearing pin, 2-dummy bar, 3-jackscrew, 4-pin, 5-through hole.
embodiment:
Embodiment below in conjunction with accompanying drawing further illustrates the content of model utility.
As shown in the figure, jackscrew locking anti-back bearing pin, comprises the pin 4 that cylindrical bearing pin 1, nose cone jackscrew 3 and two ends are circular arc head.On the cylndrical surface of cylindrical bearing pin 1, square crossing gets out 4 through holes vertically crossed 5, loads the pin 4 of four stainless steel circular arc heads in through hole 5.4 through holes 5 of bearing pin 1 end face center of circle drilling and tapping and arc surface cross.The nose cone stainless steel jackscrew 3 utilizing end face to load during use screws generation and moves axially, and touches circular arc head pin 4, makes pin produce radial displacement, thus reaches and hold out against fixing effect.
The processing roughness of bearing pin 1 is 3.2 ~ 1.6um, and jackscrew 3 and pin 4 adopt stainless steel.
Described bearing pin 1 end ream (40 ~ 45mm) × (20 ~ 25mm) counterbore, jackscrew 3 is not appeared.
During installation, loaded by four pins 4 in 4 square crossing through holes 5 of cylindrical bearing pin 1 arc surface, owing to temporarily not installing nose cone jackscrew 3, also just do not have the power of jackscrew 3, pin 4 all can not be appeared.Then bearing pin 1 is loaded dummy bar 2, nose cone jackscrew 3 is screwed in end face screw thread, jackscrew 3 is contacted with pin 4, then make pin 4 radial displacement, reach the object held out against.Jackscrew 3 locks to prevent jackscrew 3 pine from moving back by last available nut.
During dismounting bearing pin 1, moved back by nose cone jackscrew 3 pine, the pressure of circular arc head pin 4 is eliminated, and the coupling mechanism force of bearing pin 1 also eliminates, and bearing pin 1 can split out like a cork from dummy bar 2.
Claims (3)
1. jackscrew locking anti-back bearing pin, comprise bearing pin, jackscrew and pin, it is characterized in that: bearing pin is cylindrical, jackscrew is the nose cone of band fluting, and pin is circular arc head; Bore the through hole of four square crossings in the cylndrical surface of bearing pin, device four pins in through hole, be Spielpassung between each pin and through hole, jackscrew head does not expose the end face of bearing pin.
2. jackscrew locking anti-back bearing pin according to claim 1, it is characterized in that: pin is stainless steel, processing roughness is 3.2 ~ 1.6um; Four cotter length equalizations, each length 2 ~ 3mm shorter in bearing pin radius size.
3. jackscrew locking anti-back bearing pin according to claim 1, is characterized in that: described end part of pin shaft ream (~ 45mm) × (20 ~ 25mm) counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845925.1U CN204387043U (en) | 2014-12-29 | 2014-12-29 | Jackscrew locking anti-back bearing pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420845925.1U CN204387043U (en) | 2014-12-29 | 2014-12-29 | Jackscrew locking anti-back bearing pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387043U true CN204387043U (en) | 2015-06-10 |
Family
ID=53359766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420845925.1U Active CN204387043U (en) | 2014-12-29 | 2014-12-29 | Jackscrew locking anti-back bearing pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331822A (en) * | 2018-04-25 | 2018-07-27 | 莱芜钢铁集团有限公司 | A kind of special gatherer and introduction method of Fast Installation axis pin |
-
2014
- 2014-12-29 CN CN201420845925.1U patent/CN204387043U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331822A (en) * | 2018-04-25 | 2018-07-27 | 莱芜钢铁集团有限公司 | A kind of special gatherer and introduction method of Fast Installation axis pin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203171535U (en) | Axial withdrawal tool of hinge pin | |
| CN204387043U (en) | Jackscrew locking anti-back bearing pin | |
| CN102019548A (en) | Bearing-disassembling composite set | |
| CN202387811U (en) | Wheel carrier structure | |
| CN202129764U (en) | Top-drive righting bearing dismounting craft equipment | |
| CN103846860A (en) | Multi-stage pump shaft sleeve quick disassembling device | |
| CN105014609A (en) | Wind turbine blade maintaining device | |
| CN203779435U (en) | Quick disassembling device for multi-stage pump shaft sleeve | |
| CN202015927U (en) | Bearing disassembly combined device | |
| CN201960541U (en) | Flange distance expanding device | |
| CN202753100U (en) | Auxiliary device for mounting and dismounting of roller drill pressuring chain | |
| CN202326606U (en) | Fastening device for pin shaft | |
| CN203031550U (en) | Expander of pipeline flange | |
| CN204628052U (en) | For the main shaft modified node method of water pump drive group | |
| CN203062711U (en) | Special tool for dismantling bearing | |
| CN203887480U (en) | Mounting device for runner blade of axial-flow kaplan turbine | |
| CN203197832U (en) | Locating pin pulling device | |
| CN202991762U (en) | Demountable and reusable expansion screw | |
| CN201599243U (en) | Novel impeller part with anti-loosing function | |
| CN201335054Y (en) | Hydraulic cylinder connecting device | |
| CN203670521U (en) | Withdrawal sleeve | |
| CN203495883U (en) | Novel hydraulic expansion device | |
| CN204082644U (en) | A kind of rotor part of sewage MODEL VERTICAL MULTISTAGE PUMP | |
| CN205154979U (en) | Have that dismounting device's take tapering braked wheel | |
| CN203726090U (en) | Drilling device applied to steam turbine main throttle valve bolt of nuclear power station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |