CN206144892U - Expansion device of controllable swelling capacity of superhigh pressure - Google Patents
Expansion device of controllable swelling capacity of superhigh pressure Download PDFInfo
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- CN206144892U CN206144892U CN201621094046.5U CN201621094046U CN206144892U CN 206144892 U CN206144892 U CN 206144892U CN 201621094046 U CN201621094046 U CN 201621094046U CN 206144892 U CN206144892 U CN 206144892U
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- 230000008961 swelling Effects 0.000 title abstract 5
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract 7
- 239000003921 oil Substances 0.000 description 60
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 206010008469 Chest discomfort Diseases 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009510 drug design Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model relates to an expansion device of controllable swelling capacity of superhigh pressure, at the bottom of hydro -cylinder, hydro -cylinder, piston, expansion loop and locking device, set up at the bottom of the hydro -cylinder in the bottom of hydro -cylinder, the piston stretches into inside the hydro -cylinder, be provided with the oil through on it, the expansion loop set up in the inside cover of hydro -cylinder is in on the piston, the expansion loop includes that the plane is sealed, primary seal and oil pocket, the oil through with the oil pocket is linked together, locking device is fixed the expansion loop with the piston. The utility model provides an expansion device of controllable swelling capacity of superhigh pressure, the structure of reasonable design expansion loop, the swelling capacity of having realized primary seal position on the expansion loop with the swelling capacity of hydro -cylinder keeps the unanimity, prevents that the primary seal from extruding the inefficacy.
Description
Technical field
This utility model is related to a kind of technical field of mechanical equipment, in particular it relates to a kind of expansion of supertension controllable expansion amount
Device.
Background technology
At present, high pressure expansion loop on market, as shown in figure 1, including sealing ring and expansion loop, sealing ring is in " Y " font, should
The expansion loop ring for planting structure is suffered from the drawback that：1st, expansion loop inner circle is straight hole, and wall thickness is uniform；2nd, the cylindrical upper nothing of expansion loop
Non-metal guide element；3rd, expansion loop and the equal infinite place of primary seal are fixed.Therefore the swell increment of expansion loop outer wall is also uniform
, contacting to be oriented to by expansion loop outer wall with oil cylinder inner wall, swell increment is uncontrollable, easily causes scuffing of cylinder bore and expansion loop and primary seal
The phenomenons such as vibration.Therefore, it is necessary to propose a kind of novel ultrahigh pressure expansion loop, problem above is solved.
The utility model proposes a kind of expansion gear of super supertension controllable expansion amount, its swell increment is controllable, prevents from leading close
The phenomenon of envelope extrusion failure and scuffing of cylinder bore occurs.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of expansion gear of supertension controllable expansion amount, its expansion
Amount is controllable, prevents primary seal extrusion failure and the phenomenon of scuffing of cylinder bore from occurring.
In order to solve above-mentioned technical problem, the utility model proposes a kind of expansion gear of supertension controllable expansion amount, bag
Oil cylinder, oil cylinder bottom, piston, expansion loop and locking device are included, the oil cylinder bottom is arranged at the bottom of the oil cylinder, the piston
Stretch into inside the oil cylinder, be provided with oil through；
The expansion loop is arranged inside the oil cylinder and is enclosed within the piston, the expansion loop include flat seal,
Primary seal and oil pocket, the oil through are connected with the oil pocket, and the locking device fixes the expansion loop and the work
Plug.
Preferably, the piston is in " convex " font integrative-structure, including first component and second component；
The first component and second component are cylindrical, and the diameter of the first component is less than the second component
Diameter；
A ledge structure is constituted between the first component and the second component.
Preferably, the first component includes blind hole and oil through, and the blind hole is internally prolonged by the top of first component
Stretch, the depth of the blind hole is less than the height of the first component；
The oil through is through hole, is arranged on the side wall of the first component, extends to institute by the inwall of the blind hole
The outer wall of first component is stated, the quantity of the oil through is four.
Preferably, the internal diameter of the expansion loop gradually increases from two ends toward centre, and the flat seal is arranged at described swollen
One end of tensioner ring, on the face contacted with the ledge structure, the primary seal is arranged at the side of the expansion loop, the oil pocket
It is arranged at the inwall of the expansion loop.
Preferably, the expansion loop is enclosed within the first component of the piston, and minimum diameter and the institute of the expansion loop
The equal diameters of first component are stated, its thickness is more than the ledge structure constituted between the first component and the second component
Thickness.
Preferably, the oil pocket is the groove being arranged on the expansion loop inwall, and its section is in arc-shaped, its position with
The position of the oil through matches.
Preferably, the expansion loop also includes guidance tape and wear ring, and the guidance tape is arranged at the side of the expansion loop
Face, its quantity are two, respectively the first guidance tape and the second guidance tape.
Preferably, the side of the expansion loop, sets gradually described first toward the direction away from the flat seal and is oriented to
Band, the primary seal, second guidance tape and the wear ring.
Preferably, the locking device is locking nut.
Preferably, the locking nut includes screw and lock washer.
Compared with prior art, the beneficial effects of the utility model are：
1st, the expansion gear of the supertension controllable expansion amount that this utility model is provided, the structure of rational design expansion loop,
Realize the swell increment of major seal on expansion loop to be consistent with the swell increment of the oil cylinder, prevent primary seal extrusion from losing
Effect.
2nd, the expansion gear of the supertension controllable expansion amount that this utility model is provided, due to the two ends internal diameter of the expansion loop
Less than middle internal diameter, so as to prevent the generation of pull-cylinder phenomena.
3rd, the expansion gear of the supertension controllable expansion amount that this utility model is provided, the both sides of primary seal are provided with guiding
Band, piston be subject to guide effect in in-oil cylinder moving back and forth, and improve the service life of primary seal.
4th, the expansion gear of the supertension controllable expansion amount that this utility model is provided, the screw and the lock washer phase
Mutually coordinate, prevent the locking nut from loosening.
Description of the drawings
Structural representations of the Fig. 1 for the expansion gear of this utility model supertension controllable expansion amount；
Structural representations of the Fig. 2 for the expansion loop of the expansion gear of this utility model supertension controllable expansion amount.
Specific embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings with it is excellent
The utility model is described in further detail to select embodiment.
As illustrated in fig. 1 and 2, a kind of expansion gear of supertension controllable expansion amount, including oil cylinder 1, oil cylinder bottom 2, piston 3,
Expansion loop 4 and locking device 5, the oil cylinder bottom 2 are arranged at the bottom of the oil cylinder, and the piston 3 is stretched in the oil cylinder 1
Portion, is provided with oil through 31, and the expansion loop 4 is annular in shape, is arranged inside the oil cylinder 1 and is enclosed within the piston 3,
Including flat seal 41, primary seal 42 and oil pocket 43, the oil through 31 is connected with the oil pocket 43, the locking device
5 fix the expansion loop 4 and the piston 3.
Backhaul oilhole 11 is provided with the side wall of the oil cylinder 1, the oil cylinder bottom 2 is arranged at the bottom of the oil cylinder 1.
The piston 3 is in " convex " font integrative-structure, including first component 32 and second component 33, the first component 32
It is cylindrical with second component 33, the diameter of the diameter of the first component 32 less than the second component 33, described first
A ledge structure 34 is constituted between part 32 and the second component 33.The first component 32 includes blind hole 321 and logical oil
Hole 31, the blind hole 321 are extended inward by the top of first component 32, and the depth of the blind hole 321 is less than described first
The height of part 32；The oil through 31 is through hole, is arranged on the side wall of the first component, by the inwall of the blind hole 321
The outer wall of the first component is extended to, in the present embodiment, the quantity of the oil through is four, in other embodiments, described
The quantity of oil through can also be two or six, be not limited to the present embodiment.The diameter of the second component 33 is equal to the oil
The internal diameter of cylinder 1, the backhaul oilhole 11 are located on cylinder side wall, on the position corresponding with the second component.
A high pressure chest 6 is formed between oil cylinder bottom 2 of the present utility model and the piston 3, after injection hydraulic oil, institute is promoted
State piston 3 to move.
The expansion loop 4 is enclosed within the first component 32 of the piston 3, and the minimum diameter of the expansion loop 4 with it is described
The equal diameters of first component 32, its thickness is more than the Step-edge Junction constituted between the first component 32 and the second component 33
The maximum gauge sum of the diameter of the thickness of structure 34, i.e. first component and two expansion loops is equal to the internal diameter of the oil cylinder.
The expansion loop 4 is annular in shape, and its internal diameter gradually increases from two ends toward centre, including flat seal 41, primary seal 42
And oil pocket 43, the flat seal 41 is arranged at one end of the expansion loop 4, and the primary seal 42 is arranged at the expansion loop
Side, the oil pocket 43 is arranged at the inwall of the expansion loop.
The primary seal 42 is arranged at the centre position of 4 side of the expansion loop, prevents the hydraulic oil Jing inside high pressure chest 6
Flow in the gap between the second component 33 and the oil cylinder 1 in the gap crossed between the oil cylinder 1 and the expansion loop 4；
The flat seal 41 is arranged at one end of the expansion loop 4, on the face contacted with the ledge structure 34, for preventing hydraulic pressure
Flow to described second in gap of the oil from the oil pocket 43 between 4 inwall of the expansion loop and the first component 32 of the piston 3
In gap between part 33 and the oil cylinder 1；The oil pocket 43 is to be arranged at groove on the expansion loop inwall, its section
In arc-shaped, its position is matched with the position of the oil through 31, i.e., by logical between described high pressure chest 6 and the oil pocket 43
Oilhole 31 realizes connection.
Further, the expansion loop 4 also includes guidance tape 44 and wear ring 45, and the guidance tape 44 is arranged at described swollen
The side of tensioner ring 4, the expansion loop 4 for fairlead on the piston 3 move along a straight line, and prevents because discontinuity is caused
Piston wanders off to be caused internal hemorrhage due to trauma and reduces seal durability.In the present embodiment, the quantity of the guidance tape 44 is two, respectively
For the first guidance tape 441 and the second guidance tape 442；The primary seal 42 is led positioned at first guidance tape 441 and described second
To the centre of band 442；The wear ring 45 is arranged at the side of the expansion loop 4, for extending the oil cylinder 1 with the expansion
The friction life-span between ring 4.That is the side of the expansion loop 4, is disposed with the toward the direction away from the flat seal 41
One guidance tape 441, primary seal 42, the second guidance tape 442 and wear ring 45, are provided with guidance tape on the both sides of primary seal 42
44, piston be subject to guide effect in in-oil cylinder moving back and forth, and improves the service life of primary seal.
The locking device 5 is that locking nut is used to fix the expansion loop 4 and the piston 3, including screw and locking
Packing ring, the screw are used to fix the piston and locking nut, and loosening packing ring is used to prevent screw loosening, in the present embodiment
The screw is cooperated with the lock washer, prevents the locking nut from loosening.
The expansion gear of the supertension controllable expansion amount that this utility model is provided, during work pressurization：On hydraulic oil Jing pistons
Oil through enter expansion loop oil pocket, act on expansion loop inwall, no pressure inside backhaul oilhole more than primary seal is swollen
There is pressure part below tensioner ring outer wall only primary seal toward oil cylinder bottom direction, so the lifting surface area of expansion loop outer wall is much smaller than
Lifting surface area on inwall, does so the pressure on expansion loop outer wall much smaller than the pressure acted on inwall, in interior external pressure
In the presence of power difference, expansion loop can follow oil cylinder to expand outward.
As shown in Fig. 2 the distance between the face on the primary seal 42 and the expansion loop 4 away from the ledge structure is
L2, the maximum inside radius of the expansion loop 4 and minimum inside radius to difference are a, the top of 43 edge of the oil pocket and the expansion loop 4
The distance between portion is b, and the height of the oil pocket is c, and the minimum diameter of the expansion loop is φ d, with finite element technique point
Analysis is calculated, as long as by five size designs of L2, φ d, a, b, c in expansion loop rationally, it is ensured that primary seal both sides on expansion loop
The swell increment of step is consistent with the swell increment of oil cylinder all the time, prevents primary seal extrusion failure；Simultaneously as the expansion loop
Two ends internal diameter less than middle internal diameter, so as to prevent the generation of pull-cylinder phenomena.
Compared with prior art, the beneficial effects of the utility model are：
1st, the expansion gear of the supertension controllable expansion amount that this utility model is provided, the structure of rational design expansion loop,
Realize the swell increment of major seal on expansion loop to be consistent with the swell increment of the oil cylinder, prevent primary seal extrusion from losing
Effect.
2nd, the expansion gear of the supertension controllable expansion amount that this utility model is provided, due to the two ends internal diameter of the expansion loop
Less than middle internal diameter, so as to prevent the generation of pull-cylinder phenomena.
3rd, the expansion gear of the supertension controllable expansion amount that this utility model is provided, the both sides of primary seal are provided with guiding
Band, piston be subject to guide effect in in-oil cylinder moving back and forth, and improve the service life of primary seal.
4th, the expansion gear of the supertension controllable expansion amount that this utility model is provided, the screw and the lock washer phase
Mutually coordinate, prevent the locking nut from loosening.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and moisten
Decorations are also considered as protection domain of the present utility model.
Claims (10)
1. a kind of expansion gear of supertension controllable expansion amount, it is characterised in that including oil cylinder, oil cylinder bottom, piston, expansion loop with
And locking device, the oil cylinder bottom is arranged at the bottom of the oil cylinder, and the piston is stretched into inside the oil cylinder, is provided with
Oil through；
The expansion loop is arranged inside the oil cylinder and is enclosed within the piston, and the expansion loop includes that flat seal, master are close
Envelope and oil pocket, the oil through are connected with the oil pocket, and the locking device fixes the expansion loop and the piston.
2. the expansion gear of supertension controllable expansion amount according to claim 1, it is characterised in that the piston is in " convex "
Font integrative-structure, including first component and second component；
The first component and second component are cylindrical, and the diameter of the first component is straight less than the second component
Footpath；
A ledge structure is constituted between the first component and the second component.
3. the expansion gear of supertension controllable expansion amount according to claim 2, it is characterised in that the first component bag
Blind hole and oil through are included, by extending inward at the top of first component, the depth of the blind hole is less than described first to the blind hole
The height of part；
The oil through is through hole, is arranged on the side wall of the first component, extends to described the by the inwall of the blind hole
The outer wall of one part, the quantity of the oil through is four.
4. the expansion gear of supertension controllable expansion amount according to claim 2, it is characterised in that the expansion loop it is interior
Footpath gradually increases from two ends toward centre, and the flat seal is arranged at one end of the expansion loop, contacts with the ledge structure
Face on, the primary seal is arranged at the side of the expansion loop, and the oil pocket is arranged at the inwall of the expansion loop.
5. the expansion gear of supertension controllable expansion amount according to claim 4, it is characterised in that the expansion loop is enclosed within
On the first component of the piston, and the equal diameters of the minimum diameter of the expansion loop and the first component, its thickness is big
The thickness of the ledge structure constituted between the first component and the second component.
6. the expansion gear of supertension controllable expansion amount according to claim 1, it is characterised in that the oil pocket is to arrange
Groove on the expansion loop inwall, its section are in arc-shaped, and its position is matched with the position of the oil through.
7. the expansion gear of supertension controllable expansion amount according to claim 1, it is characterised in that the expansion loop is also wrapped
Guidance tape and wear ring are included, the guidance tape is arranged at the side of the expansion loop, its quantity is two, and respectively first is oriented to
Band and the second guidance tape.
8. the expansion gear of supertension controllable expansion amount according to claim 7, it is characterised in that the side of the expansion loop
Face, sets gradually first guidance tape toward the direction away from the flat seal, the primary seal, second guidance tape with
And the wear ring.
9. the expansion gear of supertension controllable expansion amount according to claim 1, it is characterised in that the locking device is
Locking nut.
10. the expansion gear of supertension controllable expansion amount according to claim 9, it is characterised in that the locking nut
Including screw and lock washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621094046.5U CN206144892U (en) | 2016-09-30 | 2016-09-30 | Expansion device of controllable swelling capacity of superhigh pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621094046.5U CN206144892U (en) | 2016-09-30 | 2016-09-30 | Expansion device of controllable swelling capacity of superhigh pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144892U true CN206144892U (en) | 2017-05-03 |
Family
ID=58620461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621094046.5U Active CN206144892U (en) | 2016-09-30 | 2016-09-30 | Expansion device of controllable swelling capacity of superhigh pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645131A (en) * | 2022-03-21 | 2022-06-21 | 温州为尚机械有限公司 | Die assembly for controlling heat treatment deformation of bearing ring |
| CN115059661A (en) * | 2022-07-02 | 2022-09-16 | 安徽工程大学 | Multistage stretching type hydraulic cylinder structure with stroke locking function |
-
2016
- 2016-09-30 CN CN201621094046.5U patent/CN206144892U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645131A (en) * | 2022-03-21 | 2022-06-21 | 温州为尚机械有限公司 | Die assembly for controlling heat treatment deformation of bearing ring |
| CN114645131B (en) * | 2022-03-21 | 2023-12-05 | 温州为尚机械有限公司 | Compression molding device for controlling heat treatment deformation of bearing ring |
| CN115059661A (en) * | 2022-07-02 | 2022-09-16 | 安徽工程大学 | Multistage stretching type hydraulic cylinder structure with stroke locking function |
| CN115059661B (en) * | 2022-07-02 | 2024-05-28 | 安徽工程大学 | Multistage extending hydraulic cylinder structure with travel locking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.1, Huanzhen West Road, Guanglong Industrial Park, Chencun Town, Shunde District, Foshan City, Guangdong Province Patentee after: Keda Manufacturing Co., Ltd Address before: 528313, No. 1, West Road, Guang Long Industrial Park, Chencun Town, Shunde District, Guangdong, Foshan Patentee before: KEDA CLEAN ENERGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |