CN209724846U - A kind of low friction high-speed oil cylinder - Google Patents
A kind of low friction high-speed oil cylinder Download PDFInfo
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- CN209724846U CN209724846U CN201920395794.4U CN201920395794U CN209724846U CN 209724846 U CN209724846 U CN 209724846U CN 201920395794 U CN201920395794 U CN 201920395794U CN 209724846 U CN209724846 U CN 209724846U
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Abstract
The utility model relates to technical field of hydraulic oil cylinder more particularly to a kind of low friction high-speed oil cylinders.Currently, cylinder cap and cylinder body use static seal in oil cylinder, need cylinder cap when assembling cylinder cap by being threaded into cylinder body, static seal and cylinder body spin friction, static seal is prone to wear, and then leads to oil cylinder decompression oil leak.The utility model, which passes through, is arranged gear oil piston in piston rod side, gear oil piston is connect by connecting shaft with piston rod, sliding plunger is arranged on connecting shaft outer diameter, sliding plunger is slidably and sealingly connected with by O-ring and connecting shaft, Y-shaped ring outward opening sets on sliding plunger outer diameter installing, the setting of second wear ring is on gear oil piston outer diameter, gear oil piston is slidably connected by the second wear ring with cylinder inner bore, end cap is connect by end cap seal circle with cylinder body static seal, frictional resistance is significantly reduced, speed is improved.The utility model is mainly used for hydraulic cylinder.
Description
Technical field
The utility model relates to technical field of hydraulic oil cylinder more particularly to a kind of low friction high-speed oil cylinders.
Background technique
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, does straight reciprocating motion or the hydraulic of pendulum motion executes member
Part.Its structure is simple, reliable operation.Deceleration device when realizing reciprocating motion, can be removed from it, and do not have drive gap,
Movement is steady, therefore is used widely in the hydraulic system of various machinery.Currently, fast servo rank of the oil cylinder in zero load
Section, the sealing ring on piston rod is tightly pressed against on inboard wall of cylinder block under the extruding of hydraulic oil, causes resistance to increase the rate of climb slow.
Utility model content
In order to solve the above technical problems, the purpose of the utility model is to provide that a kind of structure is simple and frictional resistance is small is low
Rub high-speed oil cylinder.
The technical solution of the utility model is as follows:
A kind of low friction high-speed oil cylinder, including cylinder body 1, the first wear ring 2, connecting shaft 3, piston rod 4, piston rod seals
5, end cap 6, Y-shaped ring 8, O-ring 9, the second wear ring 10, gear oil piston 11, sliding plunger 12, end cap seal circle 13；The end
In 1 opening of cylinder body, the piston rod 4 is arranged in 1 inner hole of cylinder body the setting of lid 6 through end cap 6, and the piston rod 4 passes through the
One wear ring 2 is slidably connected with 1 inner hole of cylinder body, and the piston rod 4 is slidably and sealingly connected with by piston rod seals 5 with end cap 6,
The setting of gear oil piston 11 is in 4 side of piston rod, and the gear oil piston 11 is connect by connecting shaft 3 with piston rod 4, the cunning
Piston 12 is arranged on 3 outer diameter of connecting shaft, and the sliding plunger 12 is slidably and sealingly connected with by O-ring 9 with connecting shaft 3, institute
It states 8 outward opening of Y-shaped ring to set on 12 outer diameter of sliding plunger installing, the setting of the second wear ring 10 is outside gear oil piston 11
On diameter, the gear oil piston 11 is slidably connected by the second wear ring 10 and 1 inner hole of cylinder body, and the end cap 6 passes through end cap seal
Circle 13 is connect with cylinder body static seal, so that hydraulic oil, which enters, can first push directly on gear oil piston in cylinder body, and then passes through connection
Axis pushes piston rod to rise, while hydraulic oil is crossed the second wear ring and penetrated between sliding plunger and gear oil piston on a small quantity, Y shape circle
Smaller with inboard wall of cylinder block resistance, when piston rod jacking is to weight, hydraulic oil is quickly filled between sliding plunger and gear oil piston
Space, significantly reduce frictional resistance, improve speed.
Preferably, it is equipped with buffer stopper 7 in 12 two sides of sliding plunger, is higher by sliding plunger 125 on the outside of the buffer stopper 7
Millimeter effectively improves the service life of sliding plunger so that sliding plunger is not hit directly with piston rod, gear oil piston.
Preferably, the material of the buffer stopper 7 is rubber or polyurethane, and the hardness of the buffer stopper 7 is HSA75, is made
Obtaining buffer stopper has enough intensity and elasticity, effectively improves buffering effect.
Preferably, Y-shaped ring seal groove 121 is equipped on 12 outer diameter of sliding plunger, in 12 two sides of sliding plunger
Equipped with buffer stopper mounting groove 122, O-ring seal groove 123 is equipped in 12 inner hole of sliding plunger, the setting of Y-shaped ring 8 exists
Y-shaped ring seal groove 121, the O-ring 9 are arranged in O-ring seal groove 123, and the buffer stopper 7 is arranged in buffer stopper mounting groove
In 122, so that the outer wall and inner hole of sliding plunger can be sealed, sealing effect is effectively improved.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the main view of sliding plunger in the utility model；
In figure: cylinder body 1, the first wear ring 2, connecting shaft 3, piston rod 4, piston rod seals 5, end cap 6, buffer stopper 7, Y
Type circle 8, O-ring 9, the second wear ring 10, gear oil piston 11, sliding plunger 12, end cap seal circle 13, Y-shaped ring seal groove 121,
Buffer stopper mounting groove 122, O-ring seal groove 123.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As illustrated in fig. 1 and 2, a preferred embodiment of the utility model, the low friction high-speed oil cylinder, including cylinder body 1,
One wear ring 2, connecting shaft 3, piston rod 4, piston rod seals 5, end cap 6, Y-shaped ring 8, O-ring 9, the second wear ring 10, gear oil
Piston 11, sliding plunger 12, end cap seal circle 13；The setting of end cap 6 is arranged in 1 opening of cylinder body, piston rod 4 through end cap 6
In 1 inner hole of cylinder body, piston rod 4 is slidably connected by the first wear ring 2 and 1 inner hole of cylinder body, and piston rod 4 passes through piston rod seals
5 are slidably and sealingly connected with end cap 6, and the setting of gear oil piston 11 keeps off oil piston 11 and pass through connecting shaft 3 and piston in 4 side of piston rod
Bar 4 connects, and sliding plunger 12 is arranged on 3 outer diameter of connecting shaft, and sliding plunger 12 passes through O-ring 9 and 3 company of being slidingly sealed of connecting shaft
It connects, 8 outward opening of Y-shaped ring sets on 12 outer diameter of sliding plunger installing, and the setting of the second wear ring 10 is in gear 11 outer diameter of oil piston
On, gear oil piston 11 is slidably connected by the second wear ring 10 and 1 inner hole of cylinder body, and end cap 6 passes through end cap seal circle 13 and cylinder body
Static seal connection, so that hydraulic oil, which enters, can first push directly on gear oil piston in cylinder body, and then pushes piston by connecting shaft
Bar rises, while hydraulic oil is crossed the second wear ring and penetrated between sliding plunger and gear oil piston on a small quantity, Y shape circle and inboard wall of cylinder block
Resistance is smaller, and when piston rod jacking is to weight, hydraulic oil quickly fills with sliding plunger and keeps off the space between oil piston, effectively
Ground reduces frictional resistance, improves speed.It is equipped with buffer stopper 7 in 12 two sides of sliding plunger, sliding is higher by the outside of buffer stopper 7 and is lived
125 millimeters of plug effectively improves the use of sliding plunger so that sliding plunger is not hit directly with piston rod, gear oil piston
Service life.The material of buffer stopper 7 is rubber or polyurethane, and the hardness of buffer stopper 7 is HSA75 so that buffer stopper have it is enough strong
Degree and elasticity, effectively improve buffering effect.Y-shaped ring seal groove 121 is equipped on 12 outer diameter of sliding plunger, in sliding plunger
12 two sides are equipped with buffer stopper mounting groove 122, and O-ring seal groove 123 is equipped in 12 inner hole of sliding plunger, and Y-shaped ring 8 is arranged in Y
Type circle seal groove 121, O-ring 9 are arranged in O-ring seal groove 123, and buffer stopper 7 is arranged in buffer stopper mounting groove 122, make
The outer wall and inner hole for obtaining sliding plunger can be sealed, and sealing effect is effectively improved.
Working principle is as follows:
Hydraulic oil, which enters, can first push directly on gear oil piston in cylinder body, and then push piston rod to rise by connecting shaft,
Hydraulic oil is crossed the second wear ring and is penetrated between sliding plunger and gear oil piston on a small quantity simultaneously, Y shape circle and inboard wall of cylinder block resistance compared with
Small, when piston rod jacking is to weight, the space that hydraulic oil quickly fills with sliding plunger and keeps off between oil piston is jacked.
Above are merely preferred embodiments of the utility model, it is not intended to limit the utility model, it is noted that for
For those skilled in the art, without deviating from the technical principle of the utility model, if can also make
Dry improvement and modification, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (4)
1. a kind of low friction high-speed oil cylinder, it is characterised in that: including cylinder body (1), the first wear ring (2), connecting shaft (3), piston
Bar (4), piston rod seals (5), end cap (6), Y-shaped ring (8), O-ring (9), the second wear ring (10), gear oil piston (11),
Sliding plunger (12), end cap seal circle (13)；The end cap (6) is arranged in cylinder body (1) opening, and the piston rod (4) is run through
End cap (6) is arranged in cylinder body (1) inner hole, and the piston rod (4) is connected by the first wear ring (2) and the sliding of cylinder body (1) inner hole
It connects, the piston rod (4) is slidably and sealingly connected with by piston rod seals (5) with end cap (6), gear oil piston (11) setting
In piston rod (4) side, the gear oil piston (11) is connect by connecting shaft (3) with piston rod (4), the sliding plunger (12)
It is arranged on connecting shaft (3) outer diameter, the sliding plunger (12) is slidably and sealingly connected with by O-ring (9) with connecting shaft (3), institute
It states Y-shaped ring (8) outward opening to set on sliding plunger (12) outer diameter installing, the second wear ring (10) setting is living in gear oil
It fills on (11) outer diameter, the gear oil piston (11) is slidably connected by the second wear ring (10) and cylinder body (1) inner hole, the end cap
(6) it is connect by end cap seal circle (13) with cylinder body static seal.
2. a kind of low friction high-speed oil cylinder according to claim 1, it is characterised in that: in the sliding plunger (12) two
Side is equipped with buffer stopper (7), is higher by (12) 5 millimeters of sliding plunger on the outside of the buffer stopper (7).
3. a kind of low friction high-speed oil cylinder according to claim 2, it is characterised in that: the material of the buffer stopper (7)
For rubber or polyurethane, the hardness of the buffer stopper (7) is HSA75.
4. a kind of low friction high-speed oil cylinder according to claim 1, it is characterised in that: the sliding plunger (12) outside
Diameter is equipped with Y-shaped ring seal groove (121), buffer stopper mounting groove (122) is equipped in the sliding plunger (12) two sides, in the cunning
O-ring seal groove (123) are equipped in piston (12) inner hole, the Y-shaped ring (8) is arranged in Y-shaped ring seal groove (121), the O
Type circle (9) is arranged in O-ring seal groove (123), and the buffer stopper (7) is arranged in buffer stopper mounting groove (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395794.4U CN209724846U (en) | 2019-03-26 | 2019-03-26 | A kind of low friction high-speed oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395794.4U CN209724846U (en) | 2019-03-26 | 2019-03-26 | A kind of low friction high-speed oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209724846U true CN209724846U (en) | 2019-12-03 |
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ID=68688746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920395794.4U Active CN209724846U (en) | 2019-03-26 | 2019-03-26 | A kind of low friction high-speed oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209724846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706571A (en) * | 2020-06-27 | 2020-09-25 | 孙钟 | Oil cylinder piston with high strength and good sealing performance for trailer pump air extraction unit |
-
2019
- 2019-03-26 CN CN201920395794.4U patent/CN209724846U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706571A (en) * | 2020-06-27 | 2020-09-25 | 孙钟 | Oil cylinder piston with high strength and good sealing performance for trailer pump air extraction unit |
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