CN105240354B - One kind combination Inner expandings prestressing force provides device - Google Patents
One kind combination Inner expandings prestressing force provides device Download PDFInfo
- Publication number
- CN105240354B CN105240354B CN201510709521.9A CN201510709521A CN105240354B CN 105240354 B CN105240354 B CN 105240354B CN 201510709521 A CN201510709521 A CN 201510709521A CN 105240354 B CN105240354 B CN 105240354B
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- pretension
- container
- compressor
- expandings
- tightening apparatus
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention relates to one kind combination Inner expandings prestressing force to provide device, it includes pre-tightening apparatus and clamping device, the pre-tightening apparatus of three or more than three is uniformly arranged on the outer surface for treating preload piece, the pre-tightening apparatus includes compressor, pressure gauge and pretension container, the pretension container is thin-walled elastic container, the inner surface of the pretension container is pretension face, the outer surface of its pretension face pre-stressed position corresponding with preload piece is treated matches and to be interference fitted, compressor provides compressed media into pretension container, and the pressure gauge is arranged between compressor and pretension container；The clamping device is the rigid cylindrical housing of an one end open, and the side surface of the inner surface and pretension container of rigid cylindrical housing matches.The present invention, respectively to providing compressed media in pretension container cavity, different stress constraints is carried out so as to treat each pretension outer surface of preload piece by different compressors, only need to be by adjusting the pressure of compressor, so as to reach the size of regulation pretightning force.
Description
Technical field
The present invention relates to one kind combination Inner expandings prestressing force to provide device.
Technical background
Pretightning force is before by service load, in order to strengthen the reliability of connection and compactness, to prevent from being carried
The power for occurring gap or Relative sliding between lotus rear connectors and adding in advance.Prestressing force is implemented all to be that application one is fixed at present
Product is completely fixed in a fixed mount by power, and the size for so allowing for pretightning force is a steady state value, not only unfavorable
In the control of product prestressing force size, and dismounting is likely to cause product a certain degree of damage every time, adds dimension
Protect cost.
The content of the invention
It is an object of the invention to provide a kind of pretightning force is adjustable, pretension reliably combines Inner expandings prestressing force and provides dress
Put.
To achieve these goals, the technical scheme is that, one kind combination Inner expandings prestressing force provides device, and it is wrapped
Pre-tightening apparatus and clamping device are included, the pre-tightening apparatus of three or more than three is uniformly arranged on the outer surface for treating preload piece, described
Pre-tightening apparatus includes compressor, pressure gauge and pretension container, and the pretension container is thin-walled elastic container, the pretension container
Inner surface is pretension face, and the outer surface of its pretension face pre-stressed position corresponding with preload piece is treated matches and to be interference fitted,
Compressor provides compressed media into pretension container, and the pressure gauge is arranged between compressor and pretension container；The clamping
Device is the rigid cylindrical housing of an one end open, the inner surface of rigid cylindrical housing and the side surface phase of pretension container
Match somebody with somebody.
Preferably, the clamping device includes overcoat, inner sleeve and dowel, and the overcoat is the rigid cylindrical of one end open
Housing, the inner sleeve are the rigid cylindrical housing of at least one end open, the inner surface of inner sleeve and the side surface phase of pretension container
Match somebody with somebody, the external diameter of the inner sleeve is less than the internal diameter of overcoat, and overcoat is connected to one with inner sleeve by the dowel of three or more than three
Rise.
Preferably, the dowel is " work " font.
Preferably, the dowel is " dovetail " font.
The method have the benefit that treat preload piece using the Inner expanding prestressing apparatus of three or more than three
Outside pretension is carried out, by different compressors respectively to providing compressed media in pretension container cavity so that pretension container it is every
Different degrees of dilatancy occurs for individual cavity, and different stress constraints is carried out so as to treat each pretension outer surface of preload piece,
Complete to treat the pretension of preload piece, only need to be by adjusting the pressure of compressor, so as to reach the size of regulation pretightning force.
Brief description of the drawings
Fig. 1 is structural representation of the embodiment of the present invention；
Fig. 2 is pre-tightening apparatus structural representation；
Fig. 3 is Fig. 1 A-A sectional views.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to the drawings, a kind of combination Inner expandings prestressing force provides device, and it includes pre-tightening apparatus 2 and clamping device 3, three
Pre-tightening apparatus 2 is uniformly arranged on the outer surface for treating preload piece 1, and the pre-tightening apparatus 2 is including compressor 2-1, pressure gauge 2-2 and in advance
Tight container 2-3, the pretension container 2-3 are thin-walled elastic container, and the inner surface of the pretension container 2-3 is pretension face, and its is pre-
Tight face and treat that the outer surface of 1 corresponding pre-stressed position of preload piece matches and for interference fit, compressor 2-1 is to pretension container
Compressed media is provided in 2-3, the pressure gauge 2-2 is arranged between compressor 2-1 and pretension container 2-3；The clamping device 3
For the rigid cylindrical housing of an one end open, the side surface of the inner surface and pretension container 2-3 of clamping device 3 matches, institute
It is the rigid cylindrical shell of one end open to state clamping device 3 to include overcoat 3-1, inner sleeve 3-2 and dowel 3-3, the overcoat 3-1
Body, the inner sleeve 3-2 be one end open rigid cylindrical housing, the side surface phase of inner sleeve 3-2 inner surface and pretension container 2-3
Matching, the external diameter of the inner sleeve 3-2 are less than overcoat 3-1 internal diameter, and overcoat 3-1 is connected with inner sleeve 3-2 by 12 dowel 3-3
Together, the dowel 3-3 is " work " font.
The explanation of above example is only intended to help the method and its core concept for understanding the present invention.It should be pointed out that pair
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (3)
1. one kind combination Inner expandings prestressing force provides device, it is characterised in that it includes pre-tightening apparatus and clamping device, three or
The pre-tightening apparatus of more than three is uniformly arranged on the outer surface for treating preload piece, the pre-tightening apparatus include compressor, pressure gauge and
Pretension container, the pretension container are thin-walled elastic container, and the inner surface of the pretension container is pretension face, its pretension face and are treated
The outer surface of the corresponding pre-stressed position of preload piece matches and compression is provided into pretension container and is situated between for interference fit, compressor
Matter, the pressure gauge are arranged between compressor and pretension container；The clamping device is the rigid cylindrical of an one end open
Housing, the side surface of the inner surface and pretension container of rigid cylindrical housing match；The clamping device include overcoat, inner sleeve and
Dowel, the overcoat are the rigid cylindrical housing of one end open, and the inner sleeve is the rigid cylindrical housing of at least one end open,
The side surface of the inner surface of inner sleeve and pretension container matches, and the external diameter of the inner sleeve is less than the internal diameter of overcoat, overcoat and inner sleeve
Linked together by the dowel of three or more than three.
2. a kind of combination Inner expandings prestressing force according to claim 1 provides device, it is characterised in that the dowel is
" work " font.
3. a kind of combination Inner expandings prestressing force according to claim 1 provides device, it is characterised in that the dowel is
Dovetail font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709521.9A CN105240354B (en) | 2015-10-28 | 2015-10-28 | One kind combination Inner expandings prestressing force provides device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709521.9A CN105240354B (en) | 2015-10-28 | 2015-10-28 | One kind combination Inner expandings prestressing force provides device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105240354A CN105240354A (en) | 2016-01-13 |
| CN105240354B true CN105240354B (en) | 2017-12-12 |
Family
ID=55038130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510709521.9A Active CN105240354B (en) | 2015-10-28 | 2015-10-28 | One kind combination Inner expandings prestressing force provides device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105240354B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2646511B1 (en) * | 1989-04-27 | 1991-07-12 | Gaso Philippe | DEVICE FOR MEASURING THE NUMBER OF TURNS PERFORMED BY A ROTATING SHAFT |
| GB0507913D0 (en) * | 2005-04-20 | 2005-05-25 | Marine Current Turbines Ltd | Improvements in or relating to mounting articles |
| DE102007001440A1 (en) * | 2007-01-09 | 2008-07-10 | Marzell Maier | Hydraulic pipe union has external clamp seals within external bush |
| CN201168915Y (en) * | 2008-03-26 | 2008-12-24 | 许世雄 | Pre-tightening rocker compensating gear of grinding head feed air bag |
| CN203560216U (en) * | 2013-10-29 | 2014-04-23 | 安徽卓诚文化传媒（集团）有限公司 | Advertising board fixing device for cylindrical advertising board printing |
| CN205136246U (en) * | 2015-10-28 | 2016-04-06 | 湘潭电机股份有限公司 | Expanding prestressing force provides device in combination |
-
2015
- 2015-10-28 CN CN201510709521.9A patent/CN105240354B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105240354A (en) | 2016-01-13 |
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