CN206468617U - A kind of hydraulic cushion oil cylinder - Google Patents
A kind of hydraulic cushion oil cylinder Download PDFInfo
- Publication number
- CN206468617U CN206468617U CN201720134505.6U CN201720134505U CN206468617U CN 206468617 U CN206468617 U CN 206468617U CN 201720134505 U CN201720134505 U CN 201720134505U CN 206468617 U CN206468617 U CN 206468617U
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- piston
- piston rod
- diameter
- cylinder body
- sealing
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- Expired - Fee Related
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Abstract
The utility model provides a kind of hydraulic cushion oil cylinder, including：Cylinder body, piston rod, piston, piston pad, seal gasket, sealing ring and sealing seal receptacle, piston rod is moving up and down to be arranged in cylinder body, the lower end and piston of piston rod, riveted tightly between piston pad by rivet, the lower end of piston rod includes big cylindrical portion and small column portion, the diameter of bore of piston is more than the small column portion diameter of piston-rod lower end head, the diameter of bore of piston is less than the big cylindrical portion diameter of piston-rod lower end head, seal seal receptacle and be arranged on piston rod upper end and cylinder body contact position, seal the outside environmental sealing circle of seal receptacle, seal gasket is arranged on the bottom of sealing seal receptacle.This hydraulic cushion oil cylinder by the configuration of buffer solution can reach obvious slow effect under the newton pressure above of high intensity 500 or pulling force, and can normally be used under pressure more than 500 newton for a long time, not fail.
Description
Technical field
The utility model is related to a kind of oil cylinder, and in particular to a kind of hydraulic cushion oil cylinder.
Background technology
In hydraulic system, hydraulic jack is one of essential Hydraulic Elements, in order to prevent piston in running
Collided during end of a period with end cap, cause noise, influenceed workpiece accuracy or damage hydraulic cylinder, often cover setting in cylinder ends
There is buffer unit, so that piston movement slows down gradually to stopping to speed when being ended soon close to stroke.Existing buffer unit shape
Formula is buffer plunger, cushion collar, buffering ring and trimmer valve etc., and these buffer units stretch out hydraulic jack acting in reply piston rod
When, good buffer protection function can be played, but piston rod is when retraction hydraulic jack does work, on the one hand piston rod is pushed up
The pressure of portion's workbench, is exactly on the other hand to move downward plus piston rod itself, retraction can produce larger speed, now buffer
The effect that device is played is restricted, and can be produced very big surge and noise to cylinder body during retraction, be caused mechanical collision, damage
Seal inside bad system, destruction hydraulic jack, makes the using effect of hydraulic jack have a greatly reduced quality, reduces hydraulic jack
Service life.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of hydraulic cushion oil cylinder, can be in the newton of high intensity 500
Obvious slow effect is reached by the configuration of buffer solution under pressure above, and can it is long-term under pressure more than 500 newton just
Often use, do not fail.
To realize above-mentioned technical proposal, the utility model provides a kind of pressurized hydraulic cushion cylinder, including：Cylinder body, work
Stopper rod, piston, piston pad, seal gasket, sealing ring and sealing seal receptacle, the piston rod is moving up and down to be arranged on cylinder
In vivo, the upper end of piston rod is extended on the outside of cylinder body, and riveting is passed through between the lower end and piston, piston pad of the piston rod
Nail is riveted tightly, and the lower end of the piston rod includes big cylindrical portion and small column portion, and the diameter of bore of the piston is more than piston rod
The small column portion diameter of lower end, the diameter of bore of the piston is less than the big cylindrical portion diameter of piston-rod lower end head, the envelope
Mouth seal receptacle is arranged on piston rod upper end and cylinder body contact position, seals the outside environmental sealing circle of seal receptacle, seal gasket peace
Mounted in the bottom of sealing seal receptacle.
In the above-mentioned technical solutions, when piston rod tension, piston moves down under the pressure-driven of oil circuit, due to work
The lower end small column portion diameter of stopper rod is less than piston inner hole diameter, and small column portion and the piston inner hole of piston rod form space,
Formed toward light draining during pull-up.Oil cylinder be under pressure work when, the big cylindrical portion of piston rod blocks piston inner hole, oil circuit only
Space draining that can be between piston and cylinder body, consequently, it is possible to when cylinder efficient is stressed, can only be by between piston and cylinder body
Space draining, by larger flowed friction when piston rod is moved down, so that compression buffering effect is reached, and it is light during by pulling force
Pine up pulls return.Meanwhile, can be with multi-ensuring cylinder by the cooperation between seal gasket, sealing ring and sealing seal receptacle
Internal hydraulic oil is even if by will not also be leaked during larger pressure.
It is preferred that, cylinder body lower end outer surface is provided with screw thread, and this hydraulic cushion oil cylinder can be facilitated by screw thread
Fast Installation.
It is preferred that, the piston rod upper end is provided with connection through hole, and piston rod can be facilitated and outer by connecting through hole
Portion's workpiece connection.
The utility model additionally provides a kind of pulling force hydraulic cushion oil cylinder, including：Cylinder body, piston rod, piston, piston pad
Piece, seal gasket, sealing ring and sealing seal receptacle, the piston rod it is moving up and down be arranged on cylinder body in, piston rod it is upper
Termination is extended on the outside of cylinder body, and the lower end of the piston rod includes big cylindrical portion and small column portion, and the endoporus of the piston is straight
Footpath is more than the small column portion diameter of piston-rod lower end head, and the diameter of bore of the piston is less than the big cylindrical portion of piston-rod lower end head
Diameter, the piston pad is riveted on the bottom in piston-rod lower end head small column portion, and piston is riveted on piston-rod lower end head great circle
The outside in post portion, the diameter of bore of the piston, which is less than above the external diameter of piston pad, the big cylindrical portion of piston rod, to be provided with
Step position, the sealing seal receptacle is arranged on piston rod upper end and cylinder body contact position, seals the outside environmental sealing of seal receptacle
Circle, seal gasket is arranged on the bottom of sealing seal receptacle.
In the above-mentioned technical solutions, when piston rod is by pressure, piston is up moved under the pressure of oil circuit, piston rod
With piston inner hole formation space, light draining when formation is pressed down, and the maximum moved down by step locator qualification piston rod
Distance, piston pad is damaged when preventing by significant stress.When oil cylinder under tension works, because the diameter of bore of piston is small
In the external diameter of piston pad, piston inner hole is blocked when piston pad is moved upwards, hydraulic oil can only be between piston and cylinder body
Space draining, consequently, it is possible to which when cylinder efficient is by pulling force, the space draining between piston and cylinder body, piston rod can only be passed through
By larger flowed friction when moving up, so as to reach tension buffering effect, and by easily being moved down back during pressure
Position.Meanwhile, can be with the hydraulic oil in multi-ensuring cylinder body by the cooperation between seal gasket, sealing ring and sealing seal receptacle
Even if by will not also be leaked during larger pulling force.
It is preferred that, cylinder body lower end outer surface is provided with screw thread, and this hydraulic cushion oil cylinder can be facilitated by screw thread
Fast Installation.
It is preferred that, the piston rod upper end is provided with connection through hole, and piston rod can be facilitated and outer by connecting through hole
Portion's workpiece connection.
Relative to prior art, a kind of beneficial effect for hydraulic cushion oil cylinder that the utility model is provided is：This hydraulic pressure
Cushion cylinder is lightweight, simple in construction, and working stability is easy for installation, can be in the newton of high intensity 500 with upper pulling force or pressure
Obvious slow effect is reached by the configuration of buffer solution, and with good sealing property, letting out for hydraulic oil can be prevented
Leakage, and can normally be used under pressure more than 500 newton for a long time, do not fail.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Fig. 2 is the schematic diagram of pressurized hydraulic cushion cylinder.
Fig. 3 is the schematic diagram of pulling force hydraulic cushion oil cylinder.
In figure：10th, cylinder body；11st, screw thread；20th, piston rod；21st, through hole is connected；22nd, big cylindrical portion；23rd, small column portion；
24th, step position；30th, piston；40th, piston pad；50th, seal gasket；60th, sealing ring；70th, seal receptacle is sealed.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clear, complete description, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.The every other embodiment that this area ordinary person is obtained under the premise of creative work is not made, is belonged to
Protection domain of the present utility model.
Embodiment 1：A kind of pressurized hydraulic cushion cylinder.
It is shown referring to Figures 1 and 2, a kind of pressurized hydraulic cushion cylinder, including：Cylinder body 10, piston rod 20, piston 30, work
Choker block piece 40, seal gasket 50, sealing ring 60 and sealing seal receptacle 70, the piston rod 20 is moving up and down to be arranged on cylinder body
In 10, the upper end of piston rod 20 extends to the outside of cylinder body 10, lower end and piston 30, the piston pad 40 of the piston rod 20
Between riveted tightly by rivet, the lower end of the piston rod 20 includes big cylindrical portion 22 and small column portion 23, the piston 30
Diameter of bore is more than the diameter of small column portion 23 of the lower end of piston rod 20, and the diameter of bore of the piston 30 is less than under piston rod 20
The diameter of big cylindrical portion 22 of termination, the sealing seal receptacle 70 is arranged on the upper end of piston rod 20 and the contact position of cylinder body 10, sealing
The outside environmental sealing circle 60 of seal receptacle 70, seal gasket 50 is arranged on the bottom of sealing seal receptacle 70.
In the present embodiment, when 20 tension of piston rod, piston 30 moves down under the pressure-driven of oil circuit, due to piston
The diameter of lower end small column portion 23 of bar 20 is less than the diameter of bore of piston 30, small column portion 23 and the endoporus of piston 30 of piston rod 20
Space is formed, is formed toward light draining during pull-up.Oil cylinder be under pressure work when, the big cylindrical portion 22 of piston rod 20 is piston 30
Endoporus is blocked, the space draining that oil circuit can only be between piston 30 and cylinder body 10, consequently, it is possible to when cylinder efficient is stressed, only
Can be by the space draining between piston 30 and cylinder body 10, by larger flowed friction when piston rod 20 is moved down, so as to reach
To compression buffering effect, and return is easily up pulled during by pulling force.Meanwhile, pass through seal gasket 50, sealing ring 60 and sealing
Cooperation between seal receptacle 70, can be with the hydraulic oil in multi-ensuring cylinder body 10 even if by will not also be let out during larger pressure
Leakage.
Shown in reference picture 1, the lower end outer surface of cylinder body 10 is provided with screw thread 11, and this hydraulic pressure can be facilitated by screw thread 11
The Fast Installation of cushion cylinder.
Shown in reference picture 2, the upper end of piston rod 20 is provided with connection through hole 21, can be facilitated by connecting through hole 21
Piston rod 20 is connected with outside workpiece.
Embodiment 2：A kind of pulling force hydraulic cushion oil cylinder.
Shown in reference picture 1 and Fig. 3, a kind of pulling force hydraulic cushion oil cylinder, including：Cylinder body 10, piston rod 20, piston 30, work
Choker block piece 40, seal gasket 50, sealing ring 60 and sealing seal receptacle 70, the piston rod 20 is moving up and down to be arranged on cylinder body
In 10, the upper end of piston rod 20 extends to the outside of cylinder body 10, and the lower end of the piston rod 20 includes big cylindrical portion 22 and small
Cylindrical portion 23, the diameter of bore of the piston 30 is more than the diameter of small column portion 23 of the lower end of piston rod 20, the piston 30
Diameter of bore is less than the diameter of big cylindrical portion 22 of the lower end of piston rod 20, and the piston pad 40 is riveted on the lower end of piston rod 20
The bottom in small column portion 23, piston 30 is riveted on the outside of the big cylindrical portion 22 of piston-rod lower end head, and the endoporus of the piston 30 is straight
Footpath is less than the external diameter of piston pad 40, and the big top of cylindrical portion 22 of piston rod 20 is provided with step position 24, the sealing sealing
Seat 70 is arranged on the upper end of piston rod 20 and the contact position of cylinder body 10, seals the outside environmental sealing circle 60 of seal receptacle 70, sealing mat
Piece 50 is arranged on the bottom of sealing seal receptacle 70.
In the present embodiment, when piston rod 20 is by pressure, piston 30 is up moved under the pressure of oil circuit, piston rod 20
With the endoporus of piston 30 formation space, light draining when formation is pressed down, and moved down by the restriction piston rod 20 of step position 24
Ultimate range, prevent by during significant stress damage piston pad 40.When oil cylinder under tension works, due to piston 30
Diameter of bore is less than the external diameter of piston pad 40, and piston pad 40 blocks the endoporus of piston 30 when moving upwards, and hydraulic oil can only
Space draining between piston 30 and cylinder body 10, consequently, it is possible to which when cylinder efficient is by pulling force, piston 30 and cylinder can only be passed through
Space draining between body 10, by larger flowed friction when piston rod 20 is moved up, so that tension buffering effect is reached, and
By the return that easily moved down during pressure.Meanwhile, pass through matching somebody with somebody between seal gasket 50, sealing ring 60 and sealing seal receptacle 70
Close, can be with the hydraulic oil in multi-ensuring cylinder body 10 even if by will not also be leaked during larger pulling force.
Shown in reference picture 1, the lower end outer surface of cylinder body 10 is provided with screw thread 11, and this hydraulic pressure can be facilitated by screw thread 11
The Fast Installation of cushion cylinder.
Shown in reference picture 3, the upper end of piston rod 20 is provided with connection through hole 21, can be facilitated by connecting through hole 21
Piston rod 20 is connected with outside workpiece.
It is described above be preferred embodiment of the present utility model, but the utility model should not be limited to the embodiment and
Accompanying drawing disclosure of that, so every do not depart from the lower equivalent or modification completed of spirit disclosed in the utility model, all falls
Enter the scope of the utility model protection.
Claims (6)
1. a kind of hydraulic cushion oil cylinder, it is characterised in that including：Cylinder body (10), piston rod (20), piston (30), piston pad
(40), seal gasket (50), sealing ring (60) and sealing seal receptacle (70), the piston rod (20) is moving up and down to be arranged on
In cylinder body (10), the upper end of piston rod (20) is extended on the outside of cylinder body (10), the lower end and piston of the piston rod (20)
(30), riveted tightly between piston pad (40) by rivet, the lower end of the piston rod (20) includes big cylindrical portion (22) and small
Cylindrical portion (23), the diameter of bore of the piston (30) is more than small column portion (23) diameter of piston rod (20) lower end, described
The diameter of bore of piston (30) is less than big cylindrical portion (22) diameter of piston rod (20) lower end, sealing seal receptacle (70) peace
Mounted in piston rod (20) upper end and cylinder body (10) contact position, the outside environmental sealing circle (60) of sealing seal receptacle (70), sealing
Pad (50) is arranged on the bottom of sealing seal receptacle (70).
2. hydraulic cushion oil cylinder as claimed in claim 1, it is characterised in that：Cylinder body (10) the lower end outer surface is provided with spiral shell
Line (11).
3. hydraulic cushion oil cylinder as claimed in claim 1 or 2, it is characterised in that：Piston rod (20) upper end is provided with
Connect through hole (21).
4. a kind of hydraulic cushion oil cylinder, it is characterised in that including：Cylinder body (10), piston rod (20), piston (30), piston pad
(40), seal gasket (50), sealing ring (60) and sealing seal receptacle (70), the piston rod (20) is moving up and down to be arranged on
In cylinder body (10), the upper end of piston rod (20) is extended on the outside of cylinder body (10), and the lower end of the piston rod (20) is included greatly
Cylindrical portion (22) and small column portion (23), the diameter of bore of the piston (30) are more than the small column portion of piston rod (20) lower end
(23) diameter, the diameter of bore of the piston (30) is less than big cylindrical portion (22) diameter of piston rod (20) lower end, the work
Choker block piece (40) is riveted on the bottom in piston rod (20) lower end small column portion (23), and piston (30) is riveted on piston-rod lower end head
The outside of big cylindrical portion (22), the diameter of bore of the piston (30) is less than the external diameter of piston pad (40), the piston rod
(20) step position (24) is provided with above big cylindrical portion (22), the sealing seal receptacle (70) is arranged on piston rod (20) upper end
With cylinder body (10) contact position, the outside environmental sealing circle (60) of sealing seal receptacle (70), seal gasket (50), which is arranged on, seals close
Seal the bottom of seat (70).
5. hydraulic cushion oil cylinder as claimed in claim 4, it is characterised in that：Cylinder body (10) the lower end outer surface is provided with spiral shell
Line (11).
6. the hydraulic cushion oil cylinder as described in claim 4 or 5, it is characterised in that：Piston rod (20) upper end is provided with
Connect through hole (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720134505.6U CN206468617U (en) | 2017-02-15 | 2017-02-15 | A kind of hydraulic cushion oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720134505.6U CN206468617U (en) | 2017-02-15 | 2017-02-15 | A kind of hydraulic cushion oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468617U true CN206468617U (en) | 2017-09-05 |
Family
ID=59707156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720134505.6U Expired - Fee Related CN206468617U (en) | 2017-02-15 | 2017-02-15 | A kind of hydraulic cushion oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468617U (en) |
-
2017
- 2017-02-15 CN CN201720134505.6U patent/CN206468617U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20200215 |