CN203594655U - Axial positioning mechanism - Google Patents
Axial positioning mechanism Download PDFInfo
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- CN203594655U CN203594655U CN201320624150.0U CN201320624150U CN203594655U CN 203594655 U CN203594655 U CN 203594655U CN 201320624150 U CN201320624150 U CN 201320624150U CN 203594655 U CN203594655 U CN 203594655U
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- Prior art keywords
- hole
- positioning mechanism
- axial positioning
- ring
- guide cylinder
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- 239000013013 elastic material Substances 0.000 claims description 5
- 239000011796 hollow space material Substances 0.000 claims description 2
- 239000013536 elastomeric material Substances 0.000 abstract 2
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model provides an axial positioning mechanism which comprises an expansion ring made of elastomeric material, a pushing ring and a guide cylinder. A frustum-shaped recessed chamber is arranged in one internal side of the expansion ring, the other internal side is provided with a first through hole, and a plurality of screwed holes are arranged on the periphery of the first through hole. One side of the pushing ring is provided with a cylindrical recessed chamber, and the other side is provided with a second through hole and a plurality of pushing connection through holes corresponding to the screwed holes. An annular boss is arranged on the external surface of the guide cylinder, and a plurality of guiding connection through holes corresponding to the pushing connection through holes are arranged in the annular boss. The expansion ring, the pushing ring and the guide cylinder are assembled together through a plurality of screws. The pushing ring is embedded in the frustum-shaped recessed chamber, the annular boss is embedded in the cylindrical recessed chamber, and one end of the guide cylinder sequentially passes through the first through hole and the second through hole. The screw sequentially passes the guiding connection through holes and the pushing connection through holes and is screwed in the screwed holes. and elastomeric material generates elastic deformation and expands and extrudes the inner wall of the cylinder to realize the axial positioning purpose.
Description
Technical field
The utility model relates to Machine Design and manufactures field, relates in particular to a kind of axial positioning mechanism, and it utilizes stiction to be stopped at the axial of cylinder interior.
Background technique
Relate in manufacturing at machinery, have and component need to be arranged on to the situation in cylinder, this just requires the part to packing in cylinder to carry out axially locating.
At present, there is the localization method of a lot of routines, for example, at cylinder inner wall processing draw-in groove, then use engaging position, hole.This method ratio is easier to dismounting, but is not suitable for axial impact and the larger operating mode of load.
For another example, on cylindrical wall, open tapped hole, use Cock screw location; The same easily dismounting of this structure, but it relies on stiction location, can not bear larger axial impact and load, and need additionally cylindrical piece to be processed, also can destroy the sealing of total.
Arranging that expansion pawl makes it be stuck on cylinder inner wall and then realize axially locating is also very general localization method.EXPANSION ANCHOR BOLTS is exactly most typical example, common EXPANSION ANCHOR BOLTS, formed by king-rod, expansion tube and nut, king-rod one end is for expanding drift, expand drift and be one with level and smooth tapering solid of rotation, diameter is increased gradually by identical with king-rod, its end diameter is greater than expansion tube, expansion tube is that tubular is enclosed within on king-rod, expansion tube one end is prolonged its length direction and is split into multiple expansion pawls, and expansion pawl is wrapped in and expands on drift, and king-rod surface has long screw thread, on king-rod, be connected with nut, the expansion tube the other end is spacing by nut.When use, EXPANSION ANCHOR BOLTS is placed in to the cylinder inner wall that needs connection, thereby turn nut makes it expand drift jack-up expansion pawl, king-rod is fixed and body of wall, stretch out outside cylinder inner wall the threaded one end of king-rod can connect other external structures.Once after the greatest problem of this structure and similar structure thereof is to install, king-rod sinks into expand in pawl and is stuck in cylinder inner wall and cannot dismantles, and can only be destroyed, and also can damage cylinder inner wall simultaneously.
Utilize in addition expansion piece extrusion cylinder inwall to produce larger stiction and then realize the structure of axially locating, to adopt bolt to be screwed in or taper pin pushes in the member that elastic material makes its outer wall expansion extrusion cylinder inwall is realized mostly, more this dismounting is cumbersome, and the expansion producing is less, and wayward expansion amplitude.
Model utility content
For addressing the above problem, the purpose of this utility model is to provide a kind of axial positioning mechanism, utilizes elastic material to produce after elastic strain and expands extrusion cylinder inwall to reach the object of axially locating.
The technical solution adopted in the utility model is that a kind of axial positioning mechanism, comprising:
One expanding ring, for elastic material is made, one side inside has a cone table shape cavity, and opposite side inside has one first through hole, and the first through hole is provided with some tapped holes around;
One pushing ring, one side has a column cavity, and opposite side has one second through hole and some propelling connecting through holes corresponding with aforementioned threads hole;
One guide cylinder, its outer surface is provided with an annular boss, has the corresponding guiding connecting through hole of some and aforementioned propelling connecting through hole on annular boss;
Described expanding ring, pushing ring and guide cylinder are assembled together by some screws, described pushing ring embeds cone table shape cavity, described annular boss embeds column cavity, one end of described guide cylinder is successively through the first through hole and the second through hole, and described screw passes successively guiding connecting through hole and advances connecting through hole and screw in tapped hole.
Further, described frustum cavity is normal cone platform shape, and described column cavity is cylindric.
Further, described expanding ring outer surface is a cylndrical surface.
Further, described expanding ring, pushing ring and guide cylinder three dead in line.
Further, the axis of described frustum cavity, the first through hole, column cavity, the second through hole and annular boss also overlaps mutually.
Further, described frustum cavity and expanding ring dead in line.
Further, described tapped hole is uniform centered by expanding ring axis.
Further, the quantity of described tapped hole, propelling connecting through hole, guiding connecting through hole and screw is 3-12.
Further, described guide cylinder has a hollow space.
Further, described the first through hole and tapped hole staggered positions evenly have some triangular cuts.
By adopting said structure, the utility model is positioned in cylinder, and expanding ring and cylinder inner wall have certain gap, turn screw, produce pulling force and promote pushing ring and then extrusion expansion ring, expanding ring is expanded, extrusion cylinder inwall, thus stiction produced, realize the axially locating in cylinder.Expose outside cylinder one end of guide cylinder, can connect other external members.Its positioning stablity, accurate.When dismounting simultaneously, only screw need to be screwed back to original position, can not damage cylinder inner wall, dismounting is convenient.In addition, the length that screws in tapped hole by adjusting screw can be adjusted the expansion amplitude of expanding ring, and then is applicable to different positioning requirements, can be used for several the interior axially locating of cylinder that specification is close.
Accompanying drawing explanation
Fig. 1 is the utility model one embodiment's structural representation.
In figure: 1-guide cylinder; 2-pushing ring; 3-expanding ring; 4-screw.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate appended graphic being described in detail below.
Embodiment 1:
Axial positioning mechanism as shown in Figure 1, comprise: expanding ring, pushing ring and guide cylinder, expanding ring is that elastic material is made, its outer surface is a cylndrical surface, one side inside has a cone table shape cavity, described frustum cavity is normal cone platform shape, and opposite side inside has one first through hole, and the first through hole is evenly equipped with 3 tapped holes around centered by expanding ring axis; One side of pushing ring has a column cavity, and described column cavity is cylindric, and opposite side has one second through hole and uniform 3 propelling connecting through holes corresponding with aforementioned threads hole site; The inner hollow of guide cylinder, its outer surface is provided with an annular boss, has uniform 3 guiding connecting through holes corresponding with aforementioned propelling connecting through hole position on annular boss; Described expanding ring, pushing ring and guide cylinder are assembled together by some screws, described pushing ring embeds cone table shape cavity, described annular boss embeds column cavity, one end of described guide cylinder is successively through the first through hole and the second through hole, and described screw passes successively guiding connecting through hole and advances connecting through hole and screw in tapped hole.The axis of described expanding ring, pushing ring, guide cylinder frustum cavity, the first through hole, column cavity, the second through hole and annular boss also overlaps mutually.
This mechanism is positioned in cylinder, and expanding ring and cylinder inner wall have certain gap, turn screw, produce pulling force and promote pushing ring and then extrusion expansion ring, and expanding ring is expanded, extrusion cylinder inwall, thus produce stiction, realize the axially locating in cylinder.Expose outside cylinder one end of guide cylinder, can connect other external members.
Embodiment 2:
On embodiment 1 basis, barrel bore is larger, when axial positioning mechanism Dimensions is also large, by tapped hole, advance the quantity of connecting through hole and guiding connecting through hole to change 12 into, connects more reliably expanding ring, pushing ring and guide cylinder.
Embodiment 3:
On embodiment 1 basis, barrel bore is larger, when axial positioning mechanism Dimensions is also large, by tapped hole, advance the quantity of connecting through hole and guiding connecting through hole to change 6 into, connects more reliably expanding ring, pushing ring and guide cylinder.
Embodiment 4:
On embodiment 1 basis, described guide cylinder has a hollow via-hole, and in the time that the present embodiment is applied to borehole instruments, hollow via-hole can be used as fluid passage to be passed through for fluid.
Embodiment 5:
On embodiment 1 basis, on expanding ring, the surrounding of the first through hole evenly offers some triangular cuts, promote pushing ring and then extrusion expansion ring when producing pulling force, when expanding ring is expanded, the first through hole is positioned at expanding ring inside, and breach produces closed trend, not only can increase the stability of expansion, can also further lock the part of guide cylinder through the first through hole.Make the mechanism of mechanism more reasonable.
Although the utility model is described as above with aforesaid embodiment, it can not be in order to limit the utility model.Those of ordinary skill under the utility model in technical field, not departing from spirit and scope of the present utility model, does a little change and modification, all in protection domain of the present utility model.Therefore protection domain of the present utility model when with claim the person of being defined be as the criterion.
Claims (10)
1. an axial positioning mechanism, is characterized in that, comprising:
One expanding ring, for elastic material is made, one side inside has a cone table shape cavity, and opposite side inside has one first through hole, and the first through hole is provided with some tapped holes around;
One pushing ring, one side has a column cavity, and opposite side has one second through hole and some propelling connecting through holes corresponding with aforementioned threads hole;
One guide cylinder, its outer surface is provided with an annular boss, has the corresponding guiding connecting through hole of some and aforementioned propelling connecting through hole on annular boss;
Described expanding ring, pushing ring and guide cylinder are assembled together by some screws, described pushing ring embeds cone table shape cavity, described annular boss embeds column cavity, one end of described guide cylinder is successively through the first through hole and the second through hole, and described screw passes successively guiding connecting through hole and advances connecting through hole and screw in tapped hole.
2. according to the axial positioning mechanism described in claims 1, it is characterized in that, described frustum cavity is normal cone platform shape, and described column cavity is cylindric.
3. according to the axial positioning mechanism described in claims 1, it is characterized in that, described expanding ring outer surface is a cylndrical surface.
4. according to the axial positioning mechanism described in claims 1, it is characterized in that described expanding ring, pushing ring and guide cylinder three dead in line.
5. according to the axial positioning mechanism described in claims 1, it is characterized in that, the axis of described frustum cavity, the first through hole, column cavity, the second through hole and annular boss also overlaps mutually.
6. according to the axial positioning mechanism described in claims 1, it is characterized in that described frustum cavity and expanding ring dead in line.
7. according to the axial positioning mechanism described in claims 1, it is characterized in that, described tapped hole is uniform centered by expanding ring axis.
8. according to the axial positioning mechanism described in claims 1, it is characterized in that, the quantity of described tapped hole, propelling connecting through hole, guiding connecting through hole and screw is 3-12.
9. according to the axial positioning mechanism described in claims 1, it is characterized in that, described guide cylinder has a hollow space.
10. according to the axial positioning mechanism described in claims 1, it is characterized in that, described the first through hole and tapped hole staggered positions evenly have some triangular cuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624150.0U CN203594655U (en) | 2013-10-10 | 2013-10-10 | Axial positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320624150.0U CN203594655U (en) | 2013-10-10 | 2013-10-10 | Axial positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594655U true CN203594655U (en) | 2014-05-14 |
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ID=50675548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320624150.0U Expired - Lifetime CN203594655U (en) | 2013-10-10 | 2013-10-10 | Axial positioning mechanism |
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| Country | Link |
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| CN (1) | CN203594655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136255A (en) * | 2021-11-30 | 2022-03-04 | 重庆大学 | Measurement point self-locking structure and multipoint displacement meter with same |
-
2013
- 2013-10-10 CN CN201320624150.0U patent/CN203594655U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114136255A (en) * | 2021-11-30 | 2022-03-04 | 重庆大学 | Measurement point self-locking structure and multipoint displacement meter with same |
| CN114136255B (en) * | 2021-11-30 | 2024-02-02 | 重庆大学 | Measuring point self-locking structure and multi-point displacement meter with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201120 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Patentee after: AEROSPACE SCIENCE AND INDUSTRY INERTIAL TECHNOLOGY Co.,Ltd. Address before: 100070 Beijing city Fengtai District Haiying Road No. 1 Building No. 2 hospital three Patentee before: AEROSPACE SCIENCE AND INDUSTRY INERTIAL TECHNOLOGY Co.,Ltd. Patentee before: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |