CN207364005U - Reciprocating oil cylinder seal assembly - Google Patents
Reciprocating oil cylinder seal assembly Download PDFInfo
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- CN207364005U CN207364005U CN201721462458.4U CN201721462458U CN207364005U CN 207364005 U CN207364005 U CN 207364005U CN 201721462458 U CN201721462458 U CN 201721462458U CN 207364005 U CN207364005 U CN 207364005U
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- seal
- oil cylinder
- oil
- hole
- stepped hole
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Abstract
The utility model discloses a kind of reciprocating oil cylinder seal assembly, including oil cylinder seat and the seal and locking head that are arranged at its inner cavity, the inner cavity of oil cylinder seat is stepped hole, seal is installed in the major diameter section of stepped hole and is locked by locking head, piston rod sequentially passes through the path section of stepped hole, seal and locking head, seal assembly is removably connected to the outer end of reciprocating oil cylinder cylinder body with oil cylinder seat, the side wall of the seal is equipped with the drainback passage connected through wall thickness with the stepped hole, the end of seal is equipped with the annular groove for being used for installing sealing ring, the oil cylinder seat, which corresponds to, is equipped with oil return hole at the position of oil outlet, oil return hole is externally provided with the oil return pipe connected with fuel tank.The sealing ring of seal ends seals in-oil cylinder hydraulic oil, make the hydraulic oil no pressure for oozing the sealing ring, then it is back to by drainback passage, oil return hole and oil return pipe in fuel tank, the recycling of leakage hydraulic oil can be also realized while sealing effect is improved.
Description
Technical field
It the utility model is related to a kind of seal assembly, more particularly to a kind of reciprocating oil cylinder seal assembly.
Background technology
Surface grinding machine equipment is old, partial component unreasonable structure, and the sealing structure of particularly workbench reciprocating oil cylinder is set
Count it is unreasonable, using combined seal ring individual layer seal, as shown in Figure 4.Since cylinder piston rod is back and forth run very frequently, sealing
Circle is particularly easy to wear, and often leakage to ground, not only easily causes environmental pollution, but also exist very to the hydraulic oil of oil cylinder exudation
Big security risk.After replacing Xinmi City's seal, be worn oil leak again quickly, forms oil leak persistent ailment, it has also become maintenance personal and Sheng
Produce the insoluble problem of site administrator.
Utility model content
It is good the purpose of this utility model is to provide a kind of sealing effect, the reciprocal oil of leakage hydraulic oil can be recycled
Cylinder seal assembly.
The utility model provides a kind of reciprocating oil cylinder seal assembly, including oil cylinder seat and the sealing for being arranged at its inner cavity
Part and locking head, the inner cavity of oil cylinder seat is stepped hole, and seal is installed in the major diameter section of stepped hole and is locked by locking head, living
Stopper rod sequentially passes through path section, seal and the locking head of stepped hole, and seal assembly is removably connected to reciprocal oil with oil cylinder seat
The outer end of cylinder cylinder body, the side wall of the seal are equipped with the drainback passage, the seal that are connected through wall thickness with the stepped hole
End be equipped with and be used to the annular groove of sealing ring be installed, the oil cylinder seat, which corresponds to, is equipped with oil return hole, oil return at the position of oil outlet
Hole is externally provided with the oil return pipe connected with fuel tank.
In a detailed embodiment, it is column to make the seal, and the drainback passage was included along seal week
To the oil-recovery tank opened up and it is arranged at oil return groove bottom, the oil outlet through seal wall thickness.
In order to improve sealing effect, the annular groove for embedded sealing ring is equipped with the axial both ends of the seal.
In a detailed embodiment, it is equipped with internal thread in the inner wall of the stepped hole major diameter section of the oil cylinder seat.
In a detailed embodiment, it is the screw thread being threadedly connected in the stepped hole major diameter section to make the locking head
Head.
For the utility model when piston rod moves back and forth, the sealing ring of seal ends carries out one to in-oil cylinder hydraulic oil
Secondary sealing, oozed the hydraulic oil no pressure of the sealing ring, and hydraulic oil is buffered in the axial center hole of seal, then by returning
Oily passage, oil return hole and oil return pipe are back in fuel tank, and returning for leakage hydraulic oil can be also realized while sealing effect is improved
Receive and utilize.
Brief description of the drawings
Fig. 1 is the use state schematic cross-sectional view of one preferred embodiment of the utility model.
Fig. 2 is the enlarged diagram at I in Fig. 1.
Fig. 3 is the enlarged diagram of seal in Fig. 1.
Fig. 4 is prior art schematic cross-sectional view.
Illustrate sequence number：
1-oil cylinder seat, 2-locking head, 3-seal, 4-oil return pipe, 5-cylinder block, 6-cylinder piston rod, 7-
Sealing ring, 11-oil return hole, 31-oil-recovery tank, 32-oil outlet, 33-annular groove.
Embodiment
As shown in Figure 1 and Figure 2, this reciprocating oil cylinder seal assembly provided in this embodiment, including oil cylinder seat 1, locking head
2nd, seal 3 and oil return pipe 4.
The axial centre of oil cylinder seat 1 is equipped with stepped hole, and the inner wall of stepped hole major diameter section, which is equipped with, to be used to connect the interior of locking head 2
Screw thread, the side wall of oil cylinder seat 1 are equipped with oil return hole 11, and oil cylinder seat is bolted to the outer end of cylinder block 5.
The axial centre of locking head 2 is equipped with through hole, its aperture is matched with the outside diameter of cylinder piston rod 6.
Seal 3 as shown in Figure 3 is column, its axial centre is equipped with through hole, drainback passage is additionally provided with seal, is returned
Oily passage includes the oil-recovery tank 31 circumferentially opened up along seal and is arranged at oil return groove bottom, the oil outlet through seal wall thickness
32；Oil outlet is connected with the stepped hole of oil cylinder seat, and the axial both ends of seal are equipped with the annular groove for embedded sealing ring 7
33。
In use, oil cylinder seat is bolted to the outer end of cylinder block, and the piston rod of oil cylinder passes through oil cylinder
Seat, seal are lock onto in oil cylinder seat by locking head and complete to seal between piston rod and oil cylinder seat.
After the completion of assembling, when cylinder piston rod moves back and forth, one end sealing ring carries out in-oil cylinder hydraulic oil once close
Envelope, makes the hydraulic oil no pressure for oozing sealing ring；Blocked again by the sealing ring of the other end, make the hydraulic oil of exudation can only pass through
Oil outlet, oil-recovery tank, oil return hole, oil return pipe are flow in oil cylinder, and the circulation profit of hydraulic oil is realized while improving sealing effect
With.
The present embodiment is especially suitable on surface grinding machine workbench, when applying at this：First, selection is matched somebody with somebody with piston rod
Cover the standard y-type seal ring two used；Then two sealing rings are flush-mounted in the annular groove at seal both ends respectively；Then
Seal is placed in the inner cavity of oil cylinder seat and is locked by thread head；Finally oil cylinder seat is bolted in outside cylinder block.
In-oil cylinder hydraulic oil has certain pressure during use, and when flowing through sealing ring, due to the resistance of sealing ring, hydraulic oil is
No pressure, then the closure by offside sealing ring, hydraulic oil at this time can only flow into drainback passage, then by oil return hole and outside
The oil return pipe connect flows back to fuel tank again, so as to achieve the purpose that to recycle, can effectively improve sealing effect, fundamentally
Solves the persistent ailment of flat stone mill workbench reciprocating oil cylinder oil leak.
It is economical and seal assembly needed for the present embodiment is easy to purchase and voluntarily processes, and reduces production and application cost
Material benefit.After ring wear oil leak, the locking head of side need to be only unclamped, replaces sealing ring.It is less with parts, add
Work precision is easy to ensure, dismantles, is easy to operate, on the basis of leakage of oil is avoided, being more advantageous to producing.Xinmi City's sealing assembly is wear-resisting
Property has been far longer than original combination sealing ring type structure, and original structure is as shown in Figure 4.
Claims (5)
1. a kind of reciprocating oil cylinder seal assembly, including oil cylinder seat and the seal and locking head that are arranged at its inner cavity, oil cylinder seat
Inner cavity be stepped hole, seal is installed in the major diameter section of stepped hole and is locked by locking head, and piston rod sequentially passes through ladder
Path section, seal and the locking head in hole, seal assembly are removably connected to the outer end of reciprocating oil cylinder cylinder body with oil cylinder seat, it is special
Sign is：The side wall of the seal is equipped with the drainback passage connected through wall thickness with the stepped hole, the end of seal
Equipped with the annular groove for installing sealing ring, the oil cylinder seat, which corresponds to, is equipped with oil return hole, oil return hole peripheral hardware at the position of oil outlet
There is the oil return pipe connected with fuel tank.
2. reciprocating oil cylinder seal assembly according to claim 1, it is characterised in that：The seal is column, institute
Stating drainback passage includes the oil-recovery tank that is circumferentially opened up along seal and is arranged at oil return groove bottom, through the fuel-displaced of seal wall thickness
Hole.
3. reciprocating oil cylinder seal assembly according to claim 2, it is characterised in that：The axial both ends of the seal are equal
Equipped with the annular groove for embedded sealing ring.
4. reciprocating oil cylinder seal assembly according to claim 1, it is characterised in that：The stepped hole major diameter of the oil cylinder seat
The inner wall of section is equipped with internal thread.
5. reciprocating oil cylinder seal assembly according to claim 4, it is characterised in that：The locking head is to be threadedly connected to
Thread head in the stepped hole major diameter section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721462458.4U CN207364005U (en) | 2017-11-06 | 2017-11-06 | Reciprocating oil cylinder seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721462458.4U CN207364005U (en) | 2017-11-06 | 2017-11-06 | Reciprocating oil cylinder seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207364005U true CN207364005U (en) | 2018-05-15 |
Family
ID=62345594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721462458.4U Active CN207364005U (en) | 2017-11-06 | 2017-11-06 | Reciprocating oil cylinder seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207364005U (en) |
-
2017
- 2017-11-06 CN CN201721462458.4U patent/CN207364005U/en active Active
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| GR01 | Patent grant |