CN207470521U - A kind of high pressure resistant hydraulic tongs oil cylinder of small size - Google Patents
A kind of high pressure resistant hydraulic tongs oil cylinder of small size Download PDFInfo
- Publication number
- CN207470521U CN207470521U CN201721555120.3U CN201721555120U CN207470521U CN 207470521 U CN207470521 U CN 207470521U CN 201721555120 U CN201721555120 U CN 201721555120U CN 207470521 U CN207470521 U CN 207470521U
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- CN
- China
- Prior art keywords
- piston
- hydraulic tongs
- cylinder body
- high pressure
- ring
- 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.)
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Abstract
The utility model discloses a kind of high pressure resistant hydraulic tongs oil cylinder of small size, including upper ear seat, piston, guide sleeve, dust-proof seal ring, the first O-ring seal, the second O-ring seal, gasket, hose coupling, fittings body, cylinder body, hole sealing ring, support ring, key, lower ear base, plug screw, screw, limit screw, baffle ring, bushing, axis pin and hydraulic tongs.The utility model oil cylinder uses many places ring structure, and good airproof performance, energy is high pressure resistant, a whole set of cylinder apparatus is compact-sized, size is small；Using nylon support ring on piston, friction coefficient is small, slides smooth；Slide-and-guide is coordinated using key on cylinder body, makes to can ensure that during hydraulic tongs opening and closing and planar moves；Seal with annular groove uses guide sleeve threaded engagement assembly method, easy easy-maintaining replacement；Suitable for the limited situation for needing the multiple hydraulic tongs of laid out in parallel in space or other restricted to the cylinder sizes but high voltage bearing occasion of need.
Description
Technical field
The utility model is related to a kind of hydraulic tongs oil cylinder, specially a kind of high pressure resistant hydraulic tongs oil cylinder of small size belongs to machine
Tool hydraulic pressure applied technical field.
Background technology
In machinery industry, the necessary requirement to be achieved when being much hydraulic device work of small size high pressure resistant oil cylinder, than
Multiple rows of hydraulic tongs arranged side by side on such as crankshaft rolling machine.At present, oil cylinder has formed standardized production supply, many professional production oil
Cylinder producer can provide polytypic selection.
Above standardization oil cylinder has the characteristics of respective difference, comparatively, existing corresponding insufficient：Appearance and size is small,
Voltage endurance capability is limited；The appearance and size of resistance to pressure is big；Not only the nonstandard customization of high pressure resistant but also small size need, it is expensive and not necessarily
It can reach expected；Oneself production cannot overcome technology to close under conventional machining assembled condition again.Therefore, it proposes regarding to the issue above
A kind of high pressure resistant hydraulic tongs oil cylinder of small size.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of small size high pressure resistant hydraulic tongs oil
Cylinder occupies little space, is good airproof performance, high pressure resistant.
The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of high pressure resistant hydraulic tongs oil cylinder of small size,
Cylinder body including hydraulic tongs and on the hydraulic tongs, the both ends internal symmetry of the cylinder body are equipped with piston, and institute
It states and is set with guide sleeve between cylinder body and the piston；It is equipped between the outer end of the guide sleeve and the piston dust-proof close
Seal；Upper ear seat is connected with positioned at the end of the piston of the cylinder body side, the piston opposite with the upper ear seat
End on lower ear base is installed；It is connected between the piston and the cylinder interior by hole sealing ring, and described in two
Support ring is set on the piston between hole sealing ring；Fittings body is installed on the cylinder body, and the fittings body with
It is connected between the cylinder body by gasket, and the end of the fittings body is equipped with hose coupling；The lower ear base and the cylinder
By key connection between body, and fixed between the key and the lower ear base by screw.
Preferably, in order to realize that sealing effect is more preferable, pass through the second O-ring seal between the guide sleeve and the cylinder body
Connection, and connected between the guide sleeve and the piston by the first O-ring seal.
Preferably, the upper ear seat is equipped with limit screw, and on the upper ear seat side wall of the piston side
Be set with bushing, and the outside of the bushing by baffle ring to axis pin axial restraint；The upper ear seat on the lower ear base with pacifying
Equipped with axis pin.
Preferably, plug screw is installed on the cylinder body.
Preferably, in order to realize that friction coefficient is small, make slip steady and smooth, the support ring is made of Nylon-1010
Support ring.
Preferably, it in order to realize the guiding to hydraulic tongs, is slidably connected between the key and the cylinder body, belongs to gap and match
It closes, and the side wall of the cylinder body is equipped with the keyway being connected with the key.
Preferably, in order to make assembling convenient and can automatic compensating coaxial degree error, between the guide sleeve and the cylinder body
It is threadedly coupled.
The beneficial effects of the utility model are：The utility model oil cylinder uses many places ring structure, and good airproof performance is resistant to
High pressure, a whole set of cylinder apparatus is compact-sized, size is small；Using nylon support ring on piston, friction coefficient is small, slides smooth；Cylinder
Slide-and-guide is coordinated using key on body, makes to can ensure that during hydraulic tongs opening and closing and planar moves；Seal with annular groove uses guide sleeve spiral shell
Line screws assembly method, easy easy-maintaining replacement；Suitable for the limited situation for needing the multiple hydraulic tongs of laid out in parallel in space (such as song
Shaft rolling machine) or other restricted to the cylinder sizes but high voltage bearing occasion of need.
Description of the drawings
Fig. 1 stretches out structure diagram for the utility model piston；
Fig. 2 is the retraction piston structure diagram of the utility model；
Fig. 3 is the A-A sectional views of the utility model；
Fig. 4 is the B-B sectional views of the utility model；
Fig. 5 is the C-C sectional views of the utility model；
Fig. 6 is enlarged drawing at the I of the utility model；
Fig. 7 is the assembling hydraulic tongs schematic diagram of the utility model.
In figure：1st, upper ear seat, 2, piston, 3, guide sleeve, 4, dust-proof seal ring, the 5, first O-ring seal, 6, second is O-shaped
Sealing ring, 7, gasket, 8, hose coupling, 9, fittings body, 10, cylinder body, 11, hole sealing ring, 12, support ring, 13, key, 14,
Lower ear base, 15, plug screw, 16, screw, 17, limit screw, 18, baffle ring, 19, bushing, 20, axis pin, 21, hydraulic tongs.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
It please refers to Fig.1 shown in -7, a kind of high pressure resistant hydraulic tongs oil cylinder of small size, including hydraulic tongs 21 and mounted on described
Cylinder body 10 on hydraulic tongs 21, the both ends internal symmetry of the cylinder body 10 are equipped with piston 2, and the cylinder body 10 and the piston
Guide sleeve 3 is set between 2；Dust-proof seal ring 4 is installed between the outer end of the guide sleeve 3 and the piston 2；Positioned at institute
The end for stating the piston 2 of 10 side of cylinder body is connected with upper ear seat 1, the end of the piston 2 opposite with the upper ear seat 1
On lower ear base 14 is installed；The piston 2 and the cylinder body are connected, and described in two between 10 inside by hole sealing ring 11
Support ring 12 is set on the piston 2 between hole sealing ring 11；Fittings body 9 is installed, and described on the cylinder body 10
It is connected between fittings body 9 and the cylinder body 10 by gasket 7, and the end of the fittings body 9 is equipped with hose coupling 8；It is described
It is connected between lower ear base 14 and the cylinder body 10 by key 13, and solid by screw 16 between the key 13 and the lower ear base 14
It is fixed.
A kind of optimal technical scheme as the utility model：Pass through the 2nd O between the guide sleeve 3 and the cylinder body 10
Type sealing ring 6 connects, and so as to reach sealing effect, and passes through the first O-ring seal 5 between the guide sleeve 3 and the piston 2
Connection, so as to reach sealing effect.
A kind of optimal technical scheme as the utility model：The upper ear seat 1 is equipped with limit screw 17, and close to institute
It states and bushing 19 is set on 1 side wall of the upper ear seat of 2 side of piston, and the outside of the bushing 19 is sealed by baffle ring 18；
Axis pin 20 is installed on the upper ear seat 1 and the lower ear base 14.
A kind of optimal technical scheme as the utility model：Plug screw 15 is installed on the cylinder body 10.
A kind of optimal technical scheme as the utility model：The support ring 12 supports made of Nylon-1010
Ring.
A kind of optimal technical scheme as the utility model：It is slidably connected between the key 13 and the cylinder body 10, and
The side wall of the cylinder body 10 is equipped with the keyway being connected with the key 13.
A kind of optimal technical scheme as the utility model：It is threadedly coupled between the guide sleeve 3 and the cylinder body 10.
When the utility model is used, the sealed end of the piston 2 makes step type, i.e. three slots, hole is filled successively with close
Seal 11, guide sleeve 3, hole sealing ring 11, when assembling, need to use special fixture；On guide sleeve 3 dress there are two O-ring seal with
One dust-proof seal ring 4.During assembling, piston 2 puts on guide sleeve 3 and is packed into cylinder holes together, by screwing guide sleeve 3 and cylinder body 10
Screw thread completes the main body assembling of oil cylinder, and then is loaded on pipe fitting, upper lower ear base etc., by hose coupling 8 into fuel-displaced, driving
Piston 2 moves；Two hole sealing ring arranged opposites on piston 2 can be born double under the squeezing action of multi-diameter shaft and casing wall
To higher oil pressure；Support ring 12 on piston 2 uses the good and wear-resisting Nylon-1010 of self lubricity, and friction coefficient is small,
Make slip steady and smooth, while also function to the anti-high pressure effect of certain sealing；Oil cylinder both ends are assembled using guide sleeve 3, not only just
It is replaced in assembling, while the threaded engagement of guide sleeve 3 and cylinder body can automatic compensating coaxial degree error；Between guide sleeve 3 and piston 2
The cooperation of two O-ring seals, is further formed that leakproofness is strong, high voltage bearing structure；Being connected to key 13 on lower ear base 14 can be
Slide-and-guide in keyway on cylinder body, it is ensured that can planar be moved during 21 opening and closing of hydraulic tongs, will not be distorted torsion.This oil
Cylinder uses many places ring structure, and good airproof performance, energy is high pressure resistant (can reach 16Mpa using N32 antiwear hydraulic oils maximum), hydraulic tongs
Maximum load power is up to 20000N, and a whole set of cylinder apparatus is compact-sized, size is small (cross section only 60 × 45), especially suitable for class
Be similar to small space on crankshaft rolling machine, multiple rows of system pressure arranged side by side, high hydraulic pressure occasion.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that by containing in the equivalent requirements of the claims is fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of high pressure resistant hydraulic tongs oil cylinder of small size, the cylinder including hydraulic tongs (21) and on the hydraulic tongs (21)
Body (10), it is characterised in that：The both ends internal symmetry of the cylinder body (10) is equipped with piston (2), and the cylinder body (10) and institute
It states and is set with guide sleeve (3) between piston (2)；；It is equipped between the outer end of the guide sleeve (3) and the piston (2) anti-
Dirt sealing ring (4)；Upper ear seat (1) is connected with positioned at the end of the piston (2) of the cylinder body (10) side, with the upper ear
Lower ear base (14) is installed on the end of the opposite piston (2) of seat (1)；The piston (2) is internal with the cylinder body (10)
Between connected by hole sealing ring (11), and be set on the piston (2) between two hole sealing rings (11)
Support ring (12)；Fittings body (9) on the cylinder body (10) is installed, and is led between the fittings body (9) and the cylinder body (10)
Gasket (7) connection is crossed, and the end of the fittings body (9) is equipped with hose coupling (8)；The lower ear base (14) and the cylinder body
(10) it is connected between by key (13), and fixed by screw (16) between the key (13) and the lower ear base (14).
2. a kind of high pressure resistant hydraulic tongs oil cylinder of small size according to claim 1, it is characterised in that：The guide sleeve (3)
Sealing effect is connected up to by the second O-ring seal (6) between the cylinder body (10), and the guide sleeve (3) with it is described
Sealing effect is connected up to by the first O-ring seal (5) between piston (2).
3. a kind of high pressure resistant hydraulic tongs oil cylinder of small size according to claim 1, it is characterised in that：The upper ear seat (1)
Limit screw (17) is equipped with, and bushing (19) is set on the upper ear seat (1) side wall of the piston (2) side,
Axis pin (20) is installed on the upper ear seat (1) and the lower ear base (14)；And pass through baffle ring on the outside of the bushing (19)
(18) to axis pin (20) axial restraint.
4. a kind of high pressure resistant hydraulic tongs oil cylinder of small size according to claim 1, it is characterised in that：On the cylinder body (10)
Plug screw (15) is installed.
5. a kind of high pressure resistant hydraulic tongs oil cylinder of small size according to claim 1, it is characterised in that：The support ring (12)
For support ring made of Nylon-1010.
6. a kind of high pressure resistant hydraulic tongs oil cylinder of small size according to claim 1, it is characterised in that：The key (13) and institute
It states and belongs to clearance fit between cylinder body (10), is slidably connected, and the side wall of the cylinder body (10) is equipped with and matches with the key (13)
Close the keyway of connection.
7. a kind of high pressure resistant hydraulic tongs oil cylinder of small size according to claim 1, it is characterised in that：The guide sleeve (3)
It is threadedly coupled between the cylinder body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555120.3U CN207470521U (en) | 2017-11-20 | 2017-11-20 | A kind of high pressure resistant hydraulic tongs oil cylinder of small size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555120.3U CN207470521U (en) | 2017-11-20 | 2017-11-20 | A kind of high pressure resistant hydraulic tongs oil cylinder of small size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470521U true CN207470521U (en) | 2018-06-08 |
Family
ID=62261593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721555120.3U Expired - Fee Related CN207470521U (en) | 2017-11-20 | 2017-11-20 | A kind of high pressure resistant hydraulic tongs oil cylinder of small size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470521U (en) |
-
2017
- 2017-11-20 CN CN201721555120.3U patent/CN207470521U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180608 Termination date: 20191120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |