CN204082953U - A kind of hydraulic expanding cover - Google Patents
A kind of hydraulic expanding cover Download PDFInfo
- Publication number
- CN204082953U CN204082953U CN201420264007.XU CN201420264007U CN204082953U CN 204082953 U CN204082953 U CN 204082953U CN 201420264007 U CN201420264007 U CN 201420264007U CN 204082953 U CN204082953 U CN 204082953U
- Authority
- CN
- China
- Prior art keywords
- oil
- overcoat
- dismounting
- grease
- inner sleeve
- 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 discloses a kind of hydraulic expanding cover, include the inner sleeve and overcoat that are welded as a whole, annular oil cavity is formed between described inner sleeve and overcoat, the oil hole and oil outlet that are provided with and are communicated with annular oil cavity is respectively put outside described, described oil hole is provided with grease nipple, described oil outlet is provided with dismounting oil stifled, during installation, grease gun is utilized to be pressed in annular oil cavity by lubricating grease, when the pressure gauge show value on grease gun reaches working pressure.The utility model has following beneficial effect: overcoat and inner sleeve are structure as a whole, and processing, installation, maintenance are conveniently; Fitting operation only needs leader to move grease gun can to realize, and only need during dismounting with inner hexagon spanner by the one-way valve opens in stifled for dismounting oil, internal oil pressure is discharged, convenient and swift, registration; And without sliding axially when installing, avoiding the damage to axle and wheel hub, can repeatedly install and use, extending its working life.
Description
Technical field
The utility model relates to mechanical connection basic part, specifically a kind of hydraulic expanding cover.
Background technique
Connection in current mechanical transmission is generally connected by key transmits motion, adopt key Placement, because needs process keyway on axle and wheel hub, thus reduce the intensity of workpiece, and bearing capacity is subject to the shearing of key itself and the restriction of crushing strength again.Because key coupling shaft is to poor location, shaft hole matching often selects interference fit, needs heating, more need professional drawbench during dismounting during installation, even destructive dismounting.Due to this reason, abroad five, the sixties develop a kind of Novel connection type, that is: expansion set connects.Expansion set is connect without key, inner sleeve and overcoat coordinate with axle and wheel hub respectively, by tightening high-strength screw, make to swell respectively with the jacket and inner sleeve of cone match and reduce, thus produce magnitude of interference with axle and wheel hub, the huge frictional force relying on expansion set and the pressure between axle and wheel hub to produce come transmitting torque, axial force or both with joint efforts.When disassembly is desired, by demounting bolt by the conical surface of inner-outer sleeve separately.Therefore China has formulated the NBS of expansion set, but mechanical type expansion set also also exists number of drawbacks:
1, mechanical type expansion set is at least made up of two pieces, and even nearly five that have, manufacturing is very complicated;
2, the installation of mechanical type expansion set needs to tighten multiple high-strength bolt, and installation is wasted time and energy;
3, when mechanical type expansion set is installed, between expansion set self conical surface, between expansion set and axle, between expansion set and wheel hub, there is relative movement, if do not cleaned out when installing, can produce between surface of contact and grind wound, cause dismounting very difficult, cannot dismantle time serious;
4, the wall thickness of mechanical type expansion set is uneven, and after bolt tightening, a thinner end margin can produce stress and concentrate, and axle can be made to crack and even rupture;
5, need to smear rust preventive oil when expansion set is installed, otherwise expansion set cannot be dismantled after getting rusty.
Summary of the invention
For solving the technical problem of above-mentioned existence, the utility model provides a kind of hydraulic expanding cover, integral structure, installs and only needs leader to move grease gun, only need an inner hexagon spanner during dismounting, convenient and swift, long service life.
For achieving the above object, the technological scheme that the utility model adopts is:
A kind of hydraulic expanding cover, include the inner sleeve and overcoat that are welded as a whole, annular oil cavity is formed between described inner sleeve and overcoat, the oil hole and oil outlet that are provided with and are communicated with annular oil cavity is respectively put outside described, described oil hole is provided with grease nipple, described oil outlet is provided with dismounting oil stifled, during installation, grease gun is utilized to be pressed in annular oil cavity by lubricating grease, when the pressure gauge show value on grease gun reaches working pressure, only need stifled for dismounting oil interior one-way valve opens during dismounting with inner hexagon spanner.
Described grease nipple and dismounting oil is stifled be connected with overcoat between be respectively arranged with seal washer a and seal washer b.
Described overcoat is the sleeve with flange.
Described overcoat cylindrical and flange connections are provided with compensating groove.
The utility model has following beneficial effect: overcoat and inner sleeve are structure as a whole, and processing, installation, maintenance are conveniently; Fitting operation only needs leader to move grease gun can to realize, only need stifled for dismounting oil interior one-way valve opens during dismounting with inner hexagon spanner, internal oil pressure is discharged, inner-outer sleeve recovers distortion, gap is there is in hydraulic expanding cover between axle and wheel hub, thus pull down hydraulic expanding cover smoothly, and convenient and swift, registration; And without sliding axially when installing, avoiding the damage to axle and wheel hub, can repeatedly install and use, extending its working life; Sealing gasket is set, prevents leakage of oil situation.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail:
Be illustrated in figure 1 a specific embodiment of the present utility model, this hydraulic expanding cover, include the inner sleeve 1 and overcoat 2 that are welded as a whole, annular oil cavity 3 is formed between described inner sleeve 1 and overcoat 2, described overcoat 2 is provided with the oil hole A and oil outlet B that are communicated with annular oil cavity 3 respectively, described oil hole A is provided with grease nipple 4, described oil outlet B is provided with dismounting oil stifled 7, during installation, grease gun is utilized to be pressed into by lubricating grease in annular oil cavity 3, when the pressure gauge show value on grease gun reaches working pressure.
As preferred mode, be respectively arranged with fine copper seal washer a5 and fine copper seal washer b6 between described grease nipple 4 and dismounting oil stifled 7 are connected with overcoat 2, good sealing effect, prevents hydraulic fluid leak.
As preferred mode, described overcoat 2 is the sleeve with flange, and further, cylindrical and the flange connections of described overcoat 2 are provided with compensating groove, avoids the stress because distortion produces overcoat 2 and affects working life of overcoat 2.
First by the endoporus of the inner sleeve 1 of hydraulic expanding cover, the cylindrical of overcoat 2 and corresponding axle and wheel hub wiped clean during installation, then hydraulic expanding cover entirety is screwed in gently, utilize the fitted shaft of end face of flange and wheel hub to positioning hydraulic expansion set, after being in place, grease gun is connected with grease nipple 4, when the pressure gauge show value on grease gun reaches job requirement and detachable grease gun.
Now hydraulic expanding cover inner-outer sleeve under internal oil pressure effect reduces respectively and swells, thus axle and wheel hub is connected as one, transmitting torque, axial force or both make a concerted effort.
As shown in Figure 2, dismounting oil gets lodged in installs hydraulic expanding cover and hydraulic expanding cover when normally working, dismounting oil is stifled is in locking state, steel ball 12 is compressed by interior hexagonal cylindrical end Cock screw 10, interior hexagonal flush end Cock screw 9 compresses interior hexagonal cylindrical end Cock screw 10 and plays locking effect, and the conical surface in steel ball 12 is stifled with dismounting oil is formed and seals.
First with inner hexagon spanner, hexagonal flush end Cock screw 9 in stifled for dismounting oil outside is taken off during dismounting, then with inner hexagon spanner, interior hexagonal cylindrical end Cock screw 10 is unscrewed, steel ball 12 rises under the effect of hydraulic expanding cover internal pressure, one-way valve opens, internal high pressure oil is discharged by horizontal oil outlet 11, the now recoverable force of hydraulic expanding cover inner-outer sleeve, expansion set and occur gap between axle and wheel hub, can pull down hydraulic expanding cover.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (1)
1. a hydraulic expanding cover, include the inner sleeve (1) and overcoat (2) that are welded as a whole, annular oil cavity (3) is formed between described inner sleeve (1) and overcoat (2), it is characterized in that, described overcoat (2) is provided with the oil hole and oil outlet that are communicated with annular oil cavity (3) respectively, described oil hole is provided with grease nipple (4), described oil outlet is provided with dismounting oil stifled (7), during installation, grease gun is utilized to be pressed into by lubricating grease in annular oil cavity (3), when the pressure gauge show value on grease gun reaches working pressure, described overcoat (2) cylindrical and flange connections are provided with compensating groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264007.XU CN204082953U (en) | 2014-05-22 | 2014-05-22 | A kind of hydraulic expanding cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420264007.XU CN204082953U (en) | 2014-05-22 | 2014-05-22 | A kind of hydraulic expanding cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082953U true CN204082953U (en) | 2015-01-07 |
Family
ID=52175676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420264007.XU Expired - Fee Related CN204082953U (en) | 2014-05-22 | 2014-05-22 | A kind of hydraulic expanding cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082953U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704388A (en) * | 2015-08-03 | 2017-05-24 | 李会敬 | Bearing adapter sleeve |
| CN113790218A (en) * | 2021-09-28 | 2021-12-14 | 李宏亮 | Hydraulic adjustable expansion connecting sleeve and assembling method |
| US11312176B2 (en) | 2017-05-31 | 2022-04-26 | Compagnie Generale Des Etablissements Michelin | Wheel assembly for vehicle wheel adjustment having hub with two ports |
-
2014
- 2014-05-22 CN CN201420264007.XU patent/CN204082953U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704388A (en) * | 2015-08-03 | 2017-05-24 | 李会敬 | Bearing adapter sleeve |
| CN106704388B (en) * | 2015-08-03 | 2024-02-06 | 大同市巴什卡机械制造有限公司 | Bearing adapter sleeve |
| US11312176B2 (en) | 2017-05-31 | 2022-04-26 | Compagnie Generale Des Etablissements Michelin | Wheel assembly for vehicle wheel adjustment having hub with two ports |
| CN113790218A (en) * | 2021-09-28 | 2021-12-14 | 李宏亮 | Hydraulic adjustable expansion connecting sleeve and assembling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |