CN202023757U - Novel taper sleeve - Google Patents
Novel taper sleeve Download PDFInfo
- Publication number
- CN202023757U CN202023757U CN2011200515086U CN201120051508U CN202023757U CN 202023757 U CN202023757 U CN 202023757U CN 2011200515086 U CN2011200515086 U CN 2011200515086U CN 201120051508 U CN201120051508 U CN 201120051508U CN 202023757 U CN202023757 U CN 202023757U
- Authority
- CN
- China
- Prior art keywords
- taper sleeve
- sleeve body
- hub
- tapered sleeve
- novel
- 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 novel taper sleeve, which comprises a taper sleeve body, wherein one end of the taper sleeve body is provided with threads, a cylindrical hole is formed at the middle part of the taper sleeve body, key grooves are processed in the cylindrical hole and the tapered outer surface of the taper sleeve body respectively, and a narrow through groove enabling the diameter of the taper sleeve body to change in the elastic range is arranged on the taper sleeve body. During the installation, the taper sleeve body is first mounted in a hub, and then the taper sleeve is mounted on a shaft together with the hub; after the hub is mounted in a required position, a big nut is screwed to be propped against the hub at first and further screwed, so as to pull the taper sleeve into the taper hole of the hub, and the taper sleeve body tightly embraces the shaft and tightly braces the hub under the action of the inclined plane. As the screwing force of the nut can change the magnitude of interference between the taper sleeve body and the shaft and the hub, the labor intensity of workers is reduced, the assembling time is shortened, and the production cost is reduced. The novel taper sleeve has adjustable magnitude of interference, is convenient to mount and dismount, requires no special equipment utilizing pressing-in method and temperature differential method, is convenient to maintain, and improves the service performance of the product.
Description
Technical field
The utility model relates to a kind of tapered sleeve, and particularly relating to a kind of magnitude of interference can regulate, easy to loading and unloading, does not need the special equipment of plunging and temperature differential method, novel tapered sleeve easy to maintenance.
Background technique
In production practices, often run into axle and being connected of wheel hub, for transfer larger torque, often adopt interference fit.Plunging and temperature differential method are generally adopted in the assembling of interference fit.Plunging is that axle directly is pressed in the wheel hub, and in process of press in, the peak point of matching surface microcosmic injustice is inevitably abraded or flattens, thereby has reduced the tightness that connects.Temperature differential method is heating wheel hub or cooling axle, makes it to form the gap and is convenient to assembling.Therefore because difficulty all compare in the large-scale part heating and cooling, it is bigger to use difficulty, maintain and replace especially in use, and it is bigger to install and remove difficulty.But can design a kind of transfer larger torque and easy-to-dismount mounting structure and be the urgent demand in producing.
Fig. 1 is one of the schematic representation of the installation method of traditional pump shaft and impeller hub.Fig. 2 be traditional pump shaft and impeller hub installation method schematic representation two.Now generally adopt cylindrical interference Placement (as shown in Figure 1), or adopt the circular cone mode (as shown in Figure 2) that is connected.Cylindrical interference Placement exists some above-mentioned shortcomings, installing/dismounting difficulty; Though it is more convenient that the circular cone mode of being connected is loaded and unloaded, because inevitably there are error in a wheel bore and the manufacturing of axle circular cone size, thereby wheel hub installed to after axle goes up, the axial position of wheel hub and axle is uncertain, influences the installation precision and the usability of product.
The model utility content
At the problems referred to above, main purpose of the present utility model is to provide a kind of magnitude of interference to regulate, and is easy to loading and unloading, do not need the special equipment of plunging and temperature differential method, novel tapered sleeve easy to maintenance.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of novel tapered sleeve, described tapered sleeve comprises that an end of tapered sleeve body, tapered sleeve body is a screw thread, the centre is a cylindrical hole, in cylindrical hole and the external conical surface of tapered sleeve body process keyway respectively, on the tapered sleeve body, open a narrow groove that the tapered sleeve body is changed in the elastic range inner diameter size.
In specific embodiment of the utility model, the outer surface of described tapered sleeve body is that tapering is 1: 15 a cone.
In specific embodiment of the utility model, after being enclosed within on the pump shaft, described tapered sleeve body is installed on the impeller hub.
Positive progressive effect of the present utility model is: what the utility model provided has the following advantages from novel tapered sleeve: the utility model installs to the tapered sleeve body in the wheel hub earlier when mounted, install on the axle together with wheel hub then, wheel hub is installed to the position that needs, turn big nut, nut is close to wheel hub earlier, is rotated further big nut, just taper sheath can be spurred in the wheel hub taper hole, under the effect on inclined-plane, the tapered sleeve body is held axle tightly, with the wheel hub stretching.The screwing force of nut can change tapered sleeve body and the magnitude of interference of axle with wheel hub.Alleviate working strength of workers, shortened installation time, reduced cost of production.Magnitude of interference of the present utility model can be regulated, and is easy to loading and unloading, do not need the special equipment of plunging and temperature differential method, easy to maintenance, promoted the usability of product.
Description of drawings
Fig. 1 is one of the schematic representation of the installation method of traditional pump shaft and impeller hub.
Fig. 2 be traditional pump shaft and impeller hub installation method schematic representation two.
Fig. 3 is an overall structure schematic representation of the present utility model.
Fig. 4 is installed in structural representation in the wheel hub with novel taper sheath.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 3 is an overall structure schematic representation of the present utility model, as shown in Figure 3, the utility model comprises that an end of tapered sleeve body 100, tapered sleeve body 100 is screw threads 101, the centre is a cylindrical hole 102, in cylindrical hole 102 and the external conical surface of tapered sleeve body 100 process keyway 103 respectively, on tapered sleeve body 100, open a narrow groove 104 that tapered sleeve body 100 is changed in the elastic range inner diameter size.The outer surface of tapered sleeve body 100 is that tapering is 1: 15 a cone.Tapered sleeve body 100 is installed on the impeller hub 200 after being enclosed within on the pump shaft 300.
Compare traditional cylindrical interference Placement (as shown in Figure 1) and adopt the circular cone cylindrical interference Placement of mode (as shown in Figure 2) that is connected to have some shortcomings, the installing/dismounting difficulty.Though it is more convenient that the circular cone mode of being connected is loaded and unloaded, but because inevitably there are error in the hole of wheel hub 200 and the manufacturing of axle circular cone size, thereby after installing to wheel hub 200 on the axle 300, the axial position of wheel hub 200 and axle 300 is uncertain, influences the installation precision and the usability of product.
The utility model can transfer larger torque, and again can the installing/dismounting more convenient axle and the linkage structure form of wheel hub alleviate working strength of workers.
Fig. 4 is installed in structural representation in the wheel hub with novel taper sheath.The utility model installs to tapered sleeve body 100 in the wheel hub 200 earlier when mounted, install to together on the axle 300 with wheel hub 200 then, wheel hub 200 is installed to the position that needs, turn big nut 400, big nut 400 is close to wheel hub 200 earlier, is rotated further big nut 400, just tapered sleeve body 100 can be spurred in the taper hole of wheel hub 200, under the effect on inclined-plane, tapered sleeve body 100 is held axle 300 tightly, with wheel hub 200 stretchings.The screwing force of nut can change tapered sleeve body and the magnitude of interference of axle with wheel hub.Alleviate working strength of workers, shortened installation time, reduced cost of production.Magnitude of interference of the present utility model can be regulated, and is easy to loading and unloading, do not need the special equipment of plunging and temperature differential method, easy to maintenance, promoted the usability of product.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. novel tapered sleeve, it is characterized in that: described tapered sleeve comprises that an end of tapered sleeve body (100), described tapered sleeve body (100) is screw thread (101), the centre is a cylindrical hole (102), processes keyway (103) respectively with the external conical surface of tapered sleeve body (100) in cylindrical hole (102), open a narrow groove (104) that tapered sleeve body (100) is changed in the elastic range inner diameter size on tapered sleeve body (100).
2. novel tapered sleeve according to claim 1 is characterized in that: the outer surface of described tapered sleeve body (100) is that tapering is 1: 15 a cone.
3. novel tapered sleeve according to claim 1 is characterized in that: described tapered sleeve body (100) is enclosed within and is installed on the impeller hub (200) after pump shaft (300) is gone up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200515086U CN202023757U (en) | 2011-03-01 | 2011-03-01 | Novel taper sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200515086U CN202023757U (en) | 2011-03-01 | 2011-03-01 | Novel taper sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023757U true CN202023757U (en) | 2011-11-02 |
Family
ID=44848708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200515086U Expired - Fee Related CN202023757U (en) | 2011-03-01 | 2011-03-01 | Novel taper sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023757U (en) |
-
2011
- 2011-03-01 CN CN2011200515086U patent/CN202023757U/en not_active Expired - Fee Related
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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: 20111102 Termination date: 20120301 |