CN201998129U - Detaching device for rear pushing guide sleeve of two-stage pushing centrifuge - Google Patents
Detaching device for rear pushing guide sleeve of two-stage pushing centrifuge Download PDFInfo
- Publication number
- CN201998129U CN201998129U CN2011201363818U CN201120136381U CN201998129U CN 201998129 U CN201998129 U CN 201998129U CN 2011201363818 U CN2011201363818 U CN 2011201363818U CN 201120136381 U CN201120136381 U CN 201120136381U CN 201998129 U CN201998129 U CN 201998129U
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- fairlead
- guide post
- pusher
- limiting cover
- 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 - Fee Related
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Abstract
The utility model relates to a detaching device for a rear pushing guide sleeve of a two-stage pushing centrifuge, and solves the problem that the rear pushing guide sleeve of the two-stage pushing centrifuge is hard to detach in the prior art. The detaching device comprises a guide rod, a round table-shaped stop fixed on the end part of the guide rod, an expansion sleeve sleeved on the guide rod and matched with the inner hole of the guide sleeve, wherein the expansion sleeve is matched with the round table surface of the stop; threads are formed at the outer periphery of the guide rod; a limiting cover matched with the end part of a hollow shaft is sleeved on the thread section of the guide rod; the expansion sleeve is sleeved on the thread section of the guide rod; and a hook which is turned outwards and matched with the end face of the guide sleeve is arranged on the edge of the end part of the expansion sleeve. When the guide sleeve is pulled out, the guide sleeve is stressed uniformly and cannot be blocked in the hollow shaft; and after the guide sleeve is detached by the detaching device, the guide sleeve is integrally intact, the recyclability of parts is improved, the use cost is saved, and the detaching device is convenient to use and can generate large pullout force.
Description
Technical field
The utility model relates to a kind of dismounting frock in the centrifuge technical field, the provision for disengagement of pusher fairlead behind especially a kind of twin-stage pusher centrifuge.
Background technology
Centrifuge is to borrow the centrifugal inertial force effect, utilize heavy-fluid in centrifugal force separating solids (crystal is granular or fibrous) and liquid or the emulsion and a kind of equipment of light liquid, rotary drum of telling rotation by driven by motor is arranged, screen cloth is housed in the rotary drum, liquid is discharged through screen cloth, solid is discharged from hopper under centrifugal force and self or the continuous thrust of external force, reaches the purpose of Separation of Solid and Liquid.One of them part of double-clicking in the pusher centrifuge is by pusher shaft hollow axle, bearing block etc. form axle and parts of bearings, in pusher shaft hollow axle, be provided with back pusher fairlead, this fairlead is in the blind hole position of hollow shaft, and guiding polite formula hollow shaft belongs to interference fits, bring bigger difficulty to maintenance, if using extension bar pounds out fairlead to come from hollow shaft firmly, cause fairlead to be out of shape easily owing to beaing, can destroy the tolerance grade of part and the fineness on surface like this, make the possibility of utilizing once more reduce, cause economic loss.
Patent Office of the People's Republic of China has announced a CN 201067887Y name on June 4th, 2008 and has been called automobile one spindle guide to bearing or cover provision for disengagement, comprise arm of force disk, fairlead, the guiding rotating shaft, adjusting rod, supporting seat, two arm of force disks are fixed by fixed axis, fairlead is a hollow circular cylinder, lower external face is provided with screw thread, the cylinder both sides respectively have a guide chute, the guiding rotating shaft is a cylinder, be positioned at fairlead, the bottom surface is provided with screwed hole, and top is provided with bearing cross hole, the guiding rotating shaft flexibly connects by bearing and two arm of force disks, adjusting rod is a cylinder, and top is provided with threaded rod, and the bottom is provided with stopping means, adjusting rod is rotatably connected with the guiding rotating shaft by threaded rod, supporting seat is a hollow circular cylinder, and inner surface is provided with screw thread, and supporting seat is rotatably connected with fairlead by screw thread.But this device not too is fit to be used for dismantling fairlead.
On September 23rd, 2009 disclosed a CN101537608A and the invention provides a kind of multifunctional blind hole bearing detacher, it has guide post, guide post one end has retaining head, the other end to be connected on the end of tightening cover, the other end of tightening cover is equipped with the bolt that end is the little taper of outer imperial palace by screw thread, the outside of bolt is set with expansion sleeve, the outer imperial palace of expansion sleeve inner chamber is little, and the expansion sleeve end has axial slotted eye, retaining head and tighten on the guide post between the cover and be set with impact block.This shaft bearing replacer, simple in structure, easy to use, safe, need not heat gentle cutting under the bad situation, can easily bearing or axle sleeve taken out, and simple and reasonable, low cost of manufacture is not subjected to the restriction of casing or case material during use, can not damage casing or housing.This device uses frictional force to dismantle bearing holder (housing, cover), but frictional force is uncontrollable, not too is fit to the back pusher fairlead of dismounting twin-stage pusher centrifuge, and uses the mode of bump to produce axial force, and axial force is less, and efficient is also lower.
Summary of the invention
The purpose of this utility model is the relatively more difficult problem of back pusher fairlead dismounting of double-clicking pusher centrifuge in the prior art in order to solve, and a kind of delicate structure is provided, the provision for disengagement of pusher fairlead behind the relatively more rational twin-stage pusher centrifuge of dismounting mode.
The utility model has also solved available technology adopting bump generation axial force and has caused axial force less, the defective that removal efficiency is lower, provide a kind of screw thread rotation of using to produce bigger axial force, the provision for disengagement of pusher fairlead behind the higher twin-stage pusher centrifuge of removal efficiency.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the provision for disengagement of pusher fairlead behind a kind of twin-stage pusher centrifuge, comprise guide post, be fixed on the guide post end truncated cone-shaped the retaining head and be nested with the expansion sleeve that on guide post, matches with the fairlead endoporus, expansion sleeve matches with the round table surface of retaining head, the guide post periphery is provided with screw thread, be equipped with the position-limiting cover that cooperates with the hollow shaft end on the thread segment of guide post, expansion sleeve is nested with on the thread segment of guide post, and the end edge of expansion sleeve is provided with the grab that matches with end face fairlead that turn up.Thereby can expand and change the diameter of this end in the end of expansion sleeve, this also is for expansion sleeve being put into the needs in the fairlead endoporus, when preventing that expansion sleeve from putting into the fairlead endoporus fairlead endoporus is caused cut, after expansion sleeve is put into the endoporus of fairlead, the end that expansion sleeve can expand matches with the round platform position of retaining head, expanding end with expansion sleeve struts enlarged diameter gradually, make the grab of expansion sleeve end snap onto the end face of fairlead, by the screw thread on the guide post, can change guide post and stretch into the interior length of fairlead, thereby make the distance between expansion sleeve and the position-limiting cover shorten, just can extract fairlead by grab this moment in the blind hole of hollow shaft, the diameter of expansion sleeve is an even variation when increasing, the strength that is applied on the fairlead of grab is more even like this, the direction that expansion sleeve moves is parallel with the axis direction of guide post, like this, the moving direction that fairlead is extracted also parallels with the axis direction of guide post, also just parallel with the axis direction of hollow shaft, thereby prevent fairlead since the unbalance stress clamping stagnation in hollow shaft, just can know that the grab of expansion sleeve extend into the length of fairlead inside if be provided with scale on the expansion sleeve, thereby grab accurately can be located, use more simple and efficient, use this provision for disengagement, stability is relatively good, can guarantee whole harmless when fairlead is extracted, improve the Li Yongxing again of fairlead, reduced use cost.
As preferably, the periphery of the bigger diameter end of retaining head is provided with rib, and the side of rib contacts with the end of expansion sleeve.The round table surface of retaining head struts enlarged diameter with the end of expansion sleeve, and rib withstands the expanding end of expansion sleeve, and the retaining head is along with the same moved further of guide post, and under the effect of rib, expansion sleeve and then moves simultaneously, and gradually fairlead is extracted.
As preferably, the external diameter of expansion sleeve is less than the internal diameter of fairlead, and expansion sleeve penetrates into and forms matched in clearance in the fairlead.Diameter Relationship between expansion sleeve and the fairlead makes expansion sleeve to put in the fairlead quickly and easily, but this gap to control rationally, can not be too big, otherwise grab is along with expanding and can't contact with the end of fairlead in the end of expansion sleeve.
As preferably, expansion sleeve is cylindric, and the axial cross section of expansion sleeve takes the shape of the letter U, and the open end of U-shaped is provided with axial slit, and this slit is evenly arranged on the circumference of expansion sleeve, and the wall thickness of expansion sleeve gap location is less than the wall thickness at all the other positions.The expansion sleeve end axis to the slit can be so that enlarged diameter under the effect of expansion sleeve at retaining head, the cylindric grab of expansion sleeve end and the fairlead of making all fitted, and be stressed even.
As preferably, expansion sleeve and position-limiting cover and guide post are matched in clearance, and guide post is provided with two groups of nuts and pad, and each group nut is distinguished corresponding position-limiting cover and expansion sleeve with pad.Nut cooperates with pad can control position-limiting cover or the position of expansion sleeve on guide post, rotate the nut corresponding with expansion sleeve, thereby change the distance between retaining head and the expansion sleeve, enlarge the diameter of expansion sleeve end and make grab and fairlead connect, and the rib of retaining head blocks the grab position; Rotate the nut corresponding, guide post integral body is extracted out from hollow shaft is inner, thereby make hollow shaft and fairlead produce opposite force, fairlead is extracted from hollow shaft inside with position-limiting cover.
As preferably, position-limiting cover is cylindrical, and the axial cross section of position-limiting cover takes the shape of the letter U, and the external diameter of position-limiting cover is greater than the external diameter of fairlead, the end face of the corresponding hollow shaft of the U-shaped openend of position-limiting cover.Position-limiting cover withstands the end face of hollow shaft, and the active force of guide post is delivered on the hollow shaft by position-limiting cover, and the opposite force that makes the generation of hollow shaft and fairlead is conveniently extracted fairlead.
Effective effect of the present utility model is: can accurately locate in hollow shaft blind hole position, fairlead is stressed evenly when pulling out fairlead, fairlead can clamping stagnation in hollow shaft, also can avoid the traditional mode of beaing destruction to fairlead or hollow shaft surface, can guarantee after adopting this provision for disengagement with the fairlead dismounting that fairlead is whole harmless, improve the recycling property of part, save use cost, and very easy to use, can produce bigger pull-out force.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of user mode schematic diagram of the present utility model.
Among the figure: 1, hollow shaft, 2, fairlead, 3, position-limiting cover, 4, pad, 5, nut, 6, guide post, 7, expansion sleeve, 8, the retaining head, 9, grab, 10, rib.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the provision for disengagement of pusher fairlead (referring to accompanying drawing 1) behind a kind of twin-stage pusher centrifuge, comprise guide post 6, be fixed on the guide post end truncated cone-shaped retaining 8 and be nested with the expansion sleeve 7 that on guide post, matches with fairlead 2 endoporus, guide post is cylindric, the periphery of guide post is provided with screw thread and guide post is divided into thread segment and polished rod section, the retaining head is fixed on the end of polished rod section, the axis of retaining head and the dead in line of guide post, be rotary with two groups of nuts 5 and pad 4 on the thread segment, be equipped with position-limiting cover 3 and expansion sleeve 7 on the guide post, wherein one group of nut and pad are corresponding with position-limiting cover, other one group of nut and pad are corresponding with expansion sleeve, position-limiting cover and expansion sleeve are cylindric, axial cross section takes the shape of the letter U, wherein the U-shaped internal diameter of position-limiting cover is greater than the external diameter of fairlead, the external diameter of expansion sleeve is less than the internal diameter of fairlead, the centre position of position-limiting cover and expansion sleeve is provided with circular hole, the diameter of circular hole is greater than the external diameter of guide post thread segment, the U-shaped openend of expansion sleeve is provided with axial slit, this slit is evenly arranged on the circumference of expansion sleeve, the wall thickness of expansion sleeve gap location is less than the wall thickness at all the other positions, the end edge of expansion sleeve is provided with the grab 9 that matches with end face fairlead that turn up, the external diameter of grab is less than the internal diameter of fairlead, the bigger diameter end of retaining head is provided with rib 10, the external diameter of rib is less than the internal diameter of fairlead, and grab is corresponding with the round table surface of retaining head.
Expansion sleeve is nested with on guide post and fixes with pad and nut, the U-shaped openend of expansion sleeve withstands the round table surface of retaining head, be nested with position-limiting cover on the guide post, position-limiting cover is by nut and pad location, retaining head and expansion sleeve extend in the fairlead simultaneously, the grab alignment guide cover of expansion sleeve cooperates the inner indentation, there of formation with hollow shaft 1, then position-limiting cover is withstood the end face of hollow shaft, rotate the nut of corresponding expansion sleeve, make the contraction in length of the guide post in the expansion sleeve, the retaining head moves to the hollow shaft outer end, and gradually the end of expansion sleeve is strutted the diameter that enlarges this position, the end that grab snaps onto the indentation, there of hollow shaft inside gradually and hooks fairlead, the nut corresponding with position-limiting cover then rotated in the side that the rib of retaining head also blocks grab, shortens the length that extend into fairlead inside, fairlead is finally extracted (referring to accompanying drawing 2) with fairlead gradually along with expansion sleeve and retaining head move to the end of hollow shaft synchronously from hollow shaft inside.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any structure after the simple transformation of the present utility model, technology is all belonged to protection domain of the present utility model.
Claims (6)
1. the provision for disengagement of pusher fairlead behind the twin-stage pusher centrifuge, comprise guide post, be fixed on the guide post end truncated cone-shaped the retaining head and be nested with the expansion sleeve that on guide post, matches with the fairlead endoporus, expansion sleeve matches with the round table surface of retaining head, it is characterized in that the guide post periphery is provided with screw thread, be equipped with the position-limiting cover that cooperates with the hollow shaft end on the thread segment of guide post, expansion sleeve is nested with on the thread segment of guide post, and the end edge of expansion sleeve is provided with the grab that matches with end face fairlead that turn up.
2. the provision for disengagement of pusher fairlead behind the twin-stage pusher centrifuge according to claim 1, the periphery that it is characterized in that keeping off the bigger diameter end of head is provided with rib, and the side of rib contacts with the end of expansion sleeve.
3. the provision for disengagement of pusher fairlead behind the twin-stage pusher centrifuge according to claim 1 is characterized in that the internal diameter of the external diameter of expansion sleeve less than fairlead, and expansion sleeve penetrates into and forms matched in clearance in the fairlead.
4. according to the provision for disengagement of pusher fairlead behind claim 1 or the 2 or 3 described twin-stage pusher centrifuges, it is characterized in that expansion sleeve is cylindric, the axial cross section of expansion sleeve takes the shape of the letter U, the open end of U-shaped is provided with axial slit, this slit is evenly arranged on the circumference of expansion sleeve, and the wall thickness of expansion sleeve gap location is less than the wall thickness at all the other positions.
5. according to the provision for disengagement of pusher fairlead behind claim 1 or the 2 or 3 described twin-stage pusher centrifuges, it is characterized in that expansion sleeve and position-limiting cover and guide post are matched in clearance, guide post is provided with two groups of nuts and pad, each group nut and pad corresponding position-limiting cover of difference and expansion sleeve.
6. according to the provision for disengagement of pusher fairlead behind claim 1 or the 2 or 3 described twin-stage pusher centrifuges, it is characterized in that position-limiting cover is cylindrical, the axial cross section of position-limiting cover takes the shape of the letter U, and the external diameter of position-limiting cover is greater than the external diameter of fairlead, the end face of the corresponding hollow shaft of the U-shaped openend of position-limiting cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201363818U CN201998129U (en) | 2011-05-04 | 2011-05-04 | Detaching device for rear pushing guide sleeve of two-stage pushing centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201363818U CN201998129U (en) | 2011-05-04 | 2011-05-04 | Detaching device for rear pushing guide sleeve of two-stage pushing centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201998129U true CN201998129U (en) | 2011-10-05 |
Family
ID=44700902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201363818U Expired - Fee Related CN201998129U (en) | 2011-05-04 | 2011-05-04 | Detaching device for rear pushing guide sleeve of two-stage pushing centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201998129U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976038A (en) * | 2017-04-12 | 2017-07-25 | 广州飞机维修工程有限公司 | A kind of large diameter thin wall bushing extracting apparatus |
| CN107160473A (en) * | 2017-06-20 | 2017-09-15 | 安徽祥利机械有限公司 | A kind of feed device that neck bush is sealed for motorcycle |
| CN111015585A (en) * | 2019-12-23 | 2020-04-17 | 攀钢集团西昌钢钒有限公司 | Plug-in valve plug-in components extractor |
| CN111702722A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Nuclear-grade plunger pump check valve seat dismounting device and dismounting method |
-
2011
- 2011-05-04 CN CN2011201363818U patent/CN201998129U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976038A (en) * | 2017-04-12 | 2017-07-25 | 广州飞机维修工程有限公司 | A kind of large diameter thin wall bushing extracting apparatus |
| CN107160473A (en) * | 2017-06-20 | 2017-09-15 | 安徽祥利机械有限公司 | A kind of feed device that neck bush is sealed for motorcycle |
| CN107160473B (en) * | 2017-06-20 | 2022-08-19 | 安徽祥利机械有限公司 | Feeding device for sealing shaft bushing of motorcycle |
| CN111015585A (en) * | 2019-12-23 | 2020-04-17 | 攀钢集团西昌钢钒有限公司 | Plug-in valve plug-in components extractor |
| CN111702722A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Nuclear-grade plunger pump check valve seat dismounting device and dismounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140504 |