CN106594280B - A kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure and its manufacturing method - Google Patents
A kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure and its manufacturing method Download PDFInfo
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- CN106594280B CN106594280B CN201611249365.3A CN201611249365A CN106594280B CN 106594280 B CN106594280 B CN 106594280B CN 201611249365 A CN201611249365 A CN 201611249365A CN 106594280 B CN106594280 B CN 106594280B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Abstract
The invention discloses a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structures, including the axial piston for being fitted to valve body, valve body includes rear valve chamber and coaxial expansion is formed on the preceding valve chamber of rear valve chamber, piston includes rear segment body and coaxial expansion is formed on the preceding segment body of rear segment body, preceding segment body, which slides, is set on preceding valve chamber, segment body, which slides, afterwards is set on rear valve chamber, and preceding valve chamber is laterally provided with oiler with rear valve chamber intersection；Preceding segment body includes the first seal groove of segment body before being located on, and valve body is further included set on rear the second seal groove of valve chamber inner wall, and the first seal groove is fitted with the first sealing ring, and the second seal groove is fitted with the second sealing ring.Preceding segment body forms liquid storage cylinder with preceding valve chamber, after the high-voltage oil liquid of oiler enters liquid storage cylinder, as liquid storage cylinder hydraulic pressure increases, piston can be pushed to be moved along, first sealing ring and the second sealing ring can prevent from leaking in gap of the high-voltage oil liquid between piston and valve body, and the present invention additionally provides a kind of manufacturing method of hydraulic pressure Dynamic Seal combination formula high pressure seal structure simultaneously.
Description
Technical field
The present invention relates to hydraulic packing field, specifically a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure and its
Manufacturing method.
Background technology
Hydraulic piston is common product, because its is simple in structure, the features such as static sealing performance is good, high temperature resistant, in engineering
The extensive utilizations such as machinery, petroleum machinery, coal mine machinery.The structure of hydraulic piston is also required to consider sealing problem, adopts mostly
With O-ring seal sealing because its section is using round, on the one hand, would generally distort when mounted, influence sealing effect；The opposing party
Face, when being sealed using O-ring seal, when oil pressure reaches a certain level, O-ring seal is deformed and as fit clearance is squeezed
It presses, so as to generate oil leak.The defects of in order to overcome O-ring seal, the prior art can use X-shaped sealing ring, can be very big
Twisted phenomena when avoiding installing in degree, distortion resistance is strong, and leakproofness is preferable, and frictional resistance is small, but sends out in practical applications
Existing, X-shaped sealing ring can be also deformed on sliding surface, and after piston long-time service when piston stroke is big, X-shaped sealing ring
It can increase with the frictional force of sliding contact surface, in piston motion, inevitably be distorted and generate oil leak.
Invention content
The technical problems to be solved by the invention be in view of the above-mentioned state of the art, and provide topology layout rationally,
A kind of hydraulic pressure Dynamic Seal combination formula high pressure sealing that each mechanism cooperation is ingenious, operates steadily and can enhance high-voltage oil liquid sealing performance
Structure and its manufacturing method.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of hydraulic pressure Dynamic Seal combination formula high pressure sealing
Structure, including the axial piston for being fitted to valve body, valve body includes rear valve chamber and coaxial expansion is formed on the preceding valve chamber of rear valve chamber, piston packet
It including rear segment body and coaxial expansion is formed on the preceding segment body of rear segment body, preceding segment body, which slides, is set on preceding valve chamber, and rear segment body, which slides, is set on rear valve chamber,
Preceding valve chamber is laterally provided with oiler with rear valve chamber intersection；Preceding segment body includes the first seal groove of segment body before being located on, and valve body is also
Including being set on rear the second seal groove of valve chamber inner wall, the first seal groove is fitted with the first sealing ring, and the second seal groove is fitted with second
Sealing ring.
To optimize above-mentioned technical proposal, the measure taken further includes：
The first above-mentioned sealing ring includes baffle ring, the first X-shaped sealing ring and first on be sequentially superimposed from top to bottom first
Lower baffle ring；Second sealing ring includes baffle ring, the second X-shaped sealing ring and second time baffle ring on be sequentially superimposed from top to bottom second.
Embodiment two：On the basis of above-described embodiment, preceding segment body includes being opened respectively in the first seal groove upper wall and lower wall
First on guide hole and first time guide hole；Baffle ring includes sliding the first upper guide post being placed on first in guide hole on first, the
Once baffle ring includes sliding first time guide post being placed in first time guide hole；Valve body includes being opened respectively in the second seal groove upper wall
With the second of lower wall on guide hole and second time guide hole；Baffle ring includes sliding and be led on second be placed on second in guide hole on second
Column, second time baffle ring include sliding second time guide post being placed in second time guide hole.
The peripheral direction of segment body before the end of guide hole and the end of first time guide hole favour respectively on above-mentioned first, the
The axle center extension line of guide hole and first time guide hole is intersected in internal piston on one；The end of guide hole and second time guide hole on second
End favours rear valve chamber direction respectively；The axle center extension line of guide hole and second time guide hole is intersected in outside rear valve chamber on second.
Guide hole on above-mentioned first, first time guide hole, guide hole and second time guide hole are respectively round platform tapered bore on second；
First upper guide post, first time guide post, the second upper guide post and second time guide post are respectively tapered round platform column.
Above-mentioned the first upper guide post, first time guide post, the second upper guide post and second time guide post is respectively anti-deformation round platform column.
Above-mentioned the first upper guide post, first time guide post, the second upper guide post and second time guide post distinguishes clearance fit in first
Upper guide hole, first time guide hole, guide hole and second time guide hole on second；Baffle ring and first time baffle ring are slided respectively set on first
The upper and lower surface of one seal groove；Baffle ring and second time baffle ring slide the upper and lower surface set on the second seal groove respectively on second.
Baffle ring on above-mentioned first, first time baffle ring, baffle ring and second time baffle ring are anti-shape-changing material on second；On first
Guide hole and first time guide hole are projected as being arranged at intervals on the same cross section of piston；Guide hole and second time guide hole are in work on second
The projection on same cross section is filled in also to be arranged at intervals.
Embodiment three：On the basis of embodiment two, the inside of the inside of the first X-shaped sealing ring and the second X-shaped sealing ring
It is respectively equipped with the first connection ring and the second connection ring；The lower edges of first connection ring are respectively connected on first under baffle ring and first
Baffle ring, the lower edges of the second connection ring are respectively connected to baffle ring and second time baffle ring on second.
A kind of manufacturing method of hydraulic pressure Dynamic Seal combination formula high pressure seal structure, step are：
The first step goes out the germule of valve body and piston with lathe car, reserves the finishing thickness of 1mm；
Second step, from the periphery wall of preceding segment body to internal drilling, the direction of drilling should respectively with guide hole on first and first
Lower guide hole is consistent, drills from the internal perisporium of rear valve chamber to valve body, the direction of drilling should respectively under guide hole on second and second
Guide hole is consistent；
Third walks, and the boring weldering that the periphery wall of segment body preceding in second step exposes is sealed；
4th step, respectively by the germule smart car of valve body and piston into the size of final products；
Baffle ring on pre-fabricated first and first time baffle ring are affixed on the upper following table of the first seal groove by the 5th step respectively
Face so that guide hole in the first upper guide post alignment first, first time guide post, first time guide hole of alignment, while by the first X-shaped sealing ring
It fills on first between baffle ring and first time baffle ring；Baffle ring on pre-fabricated second and second time baffle ring are affixed on second respectively
The upper and lower surface of seal groove so that guide hole in the second upper guide post alignment second, second time guide post is directed at second time guide hole, simultaneously will
Second X-shaped sealing ring plug is on second between baffle ring and second time baffle ring；
6th step completes piston and valve body cooperation.
Compared with prior art, a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure of the invention, including axial equipped
In the piston of valve body, valve body includes rear valve chamber and coaxially expands the preceding valve chamber for being formed on rear valve chamber, and piston includes rear segment body and coaxial expansion
The preceding segment body of rear segment body is formed on, preceding segment body, which slides, is set on preceding valve chamber, and rear segment body, which slides, is set on rear valve chamber, and preceding valve chamber is handed over rear valve chamber
Oiler is laterally provided at boundary；Preceding segment body includes the first seal groove of segment body before being located on, and valve body is further included in rear valve chamber
The second seal groove of wall, the first seal groove are fitted with the first sealing ring, and the second seal groove is fitted with the second sealing ring.Preceding segment body is with before
Valve chamber forms liquid storage cylinder, after the high-voltage oil liquid of oiler enters liquid storage cylinder, as liquid storage cylinder hydraulic pressure increases, can push piston forward
Mobile, the first sealing ring and the second sealing ring can prevent from leaking in gap of the high-voltage oil liquid between piston and valve body.The present invention
Additionally provide a kind of manufacturing method of hydraulic pressure Dynamic Seal combination formula high pressure seal structure simultaneously.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the present invention；
Fig. 2 is the decomposition diagram of Fig. 1；
Fig. 3 is A portions structure diagram in Fig. 1；
Fig. 4 is B portions structure diagram in Fig. 1；
Fig. 5 is the structure diagram of embodiment two；
Fig. 6 is C portions structure diagram in Fig. 5；
Fig. 7 is D portions structure diagram in Fig. 5；
Fig. 8 is the decomposition diagram of preceding segment body and the first sealing ring in Fig. 6；
Fig. 9 is the decomposition diagram of valve body and the second sealing ring in Fig. 7；
Figure 10 is the preceding segment body of embodiment three and the structure diagram of the first sealing ring；
Figure 11 is the valve body of embodiment three and the structure diagram of the second sealing ring.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Fig. 1 to Figure 11 is the structure diagram of the present invention.
Reference numeral therein is：Valve chamber before valve chamber, 1b after 1 valve body, 1a, the second seal grooves of 1c, guide hole, 1e on 1d second
Second time guide hole, 2 pistons, the first seal grooves of 2a, segment body, 3 before segment body, 22 behind guide hole, first time guide hole of 2c, 21 on 2b first
One sealing ring is led under baffle ring, 311 first upper guide posts, 32 first X-shaped sealing rings, 33 first time baffle ring, 331 first on 31 first
Column, 34 first connection rings, 4 second sealing rings, baffle ring, 411 second upper guide posts, 42 second X-shaped sealing rings, 43 second on 41 second
Lower baffle ring, 431 second time guide post, 44 second connection rings, 5 oilers, 6 liquid storage cylinders.
Fig. 1 to Figure 11 is the structure diagram of the present invention, as shown in the figure, a kind of hydraulic pressure Dynamic Seal combination formula of the present invention is high
Pressure sealing structure, including the axial piston 2 for being fitted to valve body 1, valve body 1 includes rear valve chamber 1a and coaxial expansion is formed on rear valve chamber 1a's
Preceding valve chamber 1b, piston 2 includes rear segment body 21 and coaxial expansion is formed on the preceding segment body 22 of rear segment body 21, and preceding segment body 22, which slides, is set on preceding valve
Chamber 1b, rear segment body 21, which slides, is set on rear valve chamber 1a, and preceding valve chamber 1b is laterally provided with oiler 5 with rear valve chamber 1a intersections；Preceding segment body
22 include the first seal groove 2a of segment body 22 before being located on, and valve body 1 is further included set on rear valve chamber 1a inner walls the second seal groove 1c, the
One seal groove 2a is fitted with the first sealing ring 3, and the second seal groove 1c is fitted with the second sealing ring 4.Preceding segment body 22 and preceding valve chamber 1b
Liquid storage cylinder 6 is formed, after the high-voltage oil liquid of oiler 5 enters liquid storage cylinder 6, as 6 hydraulic pressure of liquid storage cylinder increases, piston 2 can be pushed past
Preceding movement, the first sealing ring 3 and the second sealing ring 4 can prevent from leaking in gap of the high-voltage oil liquid between piston 2 and valve body 1.
First baffle ring includes baffle ring 31 and first time baffle ring 33 on first, and the second baffle ring includes baffle ring 41 and second time baffle ring on second
43。
In embodiment, as shown in Figure 1,2,3, 4, the first sealing ring 3 includes baffle ring on be sequentially superimposed from top to bottom first
31st, the first X-shaped sealing ring 32 and first time baffle ring 33；Second sealing ring 4 includes baffle ring on be sequentially superimposed from top to bottom second
41st, the second X-shaped sealing ring 42 and second time baffle ring 43.When piston 2 moves, baffle ring 31, first time baffle ring 33, second on first
Upper baffle ring 41 and second time baffle ring 43 receive pressure, apply axial direction to the first X-shaped sealing ring 32 and the second X-shaped sealing ring 42 respectively
Pressure so that the first X-shaped sealing ring 32 and the second X-shaped sealing ring 42 generate transversely deforming respectively, so that the first X-type seals
Circle 32 can not can not also pass through the second baffle ring and rear valve by the gap of the first baffle ring and preceding valve chamber 1b, the second X-shaped sealing ring 42
The gap of chamber 1a can effectively prevent the first X-shaped sealing ring 32 and the second X-shaped sealing ring 42 during equipment long-time service in this way
It is stuck in the handing-over seam of piston 2 and valve body 1, when installation also ensures that the first X-shaped sealing ring 32 and the second X-shaped sealing ring 42 will not
Generate twisted phenomena.
Embodiment two：As shown in Fig. 5,6,7,8,9, on the basis of embodiment one, preceding segment body 22 includes being opened respectively in the
Guide hole 2b and first time guide hole 2c on the first of one seal groove 2a upper walls and lower wall；Baffle ring 31, which includes sliding, on first is placed on the
The first upper guide post 311 on one in guide hole 2b, first time baffle ring 33, which includes sliding, to be placed under first in first time guide hole 2c
Guide post 331；Valve body 1 includes being opened respectively in guide hole 1d and second time guide hole 1e on the second of the second seal groove 1c upper walls and lower wall；
Baffle ring 41 includes sliding the second upper guide post 411 being placed on second in guide hole 1d on second, and second time baffle ring 43 includes sliding
The second time guide post 431 being placed in second time guide hole 1e.First upper guide post 311, first time guide post 331, the second upper guide post 411
It can prevent the first baffle ring and the second baffle ring from coming off respectively with second time guide post 431.
In embodiment two, as shown in Fig. 5,6,7,8,9, the end of guide hole 2b and the end of first time guide hole 2c point on first
The peripheral direction of preceding segment body 22 is not favoured, and the axle center extension line of guide hole 2b and first time guide hole 2c are intersected in piston 2 on first
It is internal；The end of guide hole 1d and the end of second time guide hole 1e favour rear valve chamber 1a directions respectively on second；Guide hole on second
The axle center extension line of 1d and second time guide hole 1e are intersected in outside rear valve chamber 1a.After 6 hydraulic pressure of liquid storage cylinder rises, piston 2 is forward
22 direction of segment body（I.e. up）Mobile, during this, preceding valve chamber 1b inner walls respectively seal baffle ring 31, the first X-type on first
Circle 32 and first time baffle ring 33 generate downward frictional force, and preceding valve chamber 1b inner walls generate the first X-shaped sealing ring 32 torsion of overturning
Power, and on first baffle ring 31 and first time baffle ring 33 while by preceding valve chamber 1b inner walls downward frictional force also by first on lead
The constraint of column 311 and first time guide post 331 so that baffle ring 31 and first time baffle ring 33 make slight shifting outside respectively inwards on first
Dynamic, the moving direction of baffle ring 31 and first time baffle ring 33 is overturn with the generation of the first X-shaped sealing ring 32 on first direction is on the contrary, the
Baffle ring 31 and first time baffle ring 33 counteract the trend of the first X-shaped sealing ring 32 overturning on one, avoid the first X-shaped sealing ring 32
Deformation；Similarly the principle of the second sealing ring 4 is identical with the principle of the first sealing ring 3.
In embodiment two, as shown in Figure 8 and Figure 9, guide hole 2b on first, first time guide hole 2c, guide hole 1d and on second
Two times guide hole 1e are respectively round platform tapered bore；First upper guide post 311, first time guide post 331, the second upper guide post 411 and second
Lower guide post 431 is respectively tapered round platform column, and such structure is conducive to fully coordinate, and prevents the first sealing ring 3 and second close
Seal 4 loosens.
In embodiment two, the first upper guide post 311, first time guide post 331, the second upper guide post 411 and second time guide post 431 divide
Not Wei anti-deformation round platform column, prevent they respective matching hole internal cause be bent or expand cause it is stuck.
In embodiment two, the first upper guide post 311, first time guide post 331, the second upper guide post 411 and second time guide post 431 divide
Other clearance fit guide hole 2b, first time guide hole 2c, guide hole 1d and second time guide hole 1e on second on first；Baffle ring 31 on first
Slide the upper and lower surface set on the first seal groove 2a respectively with first time baffle ring 33；Baffle ring 41 and second time baffle ring 43 divide on second
The upper and lower surface of the second seal groove 1c Hua Dong be set on.
In embodiment two, as shown in the figure, baffle ring 31 on first, 41 and second lower block of baffle ring on first time baffle ring 33, second
Circle 43 is anti-shape-changing material；Be projected as intervals of the guide hole 2b and first time guide hole 2c on 2 same cross section of piston is set on first
It puts；Projections of the guide hole 1d and second time guide hole 1e on 2 same cross section of piston is also to be arranged at intervals on second.Guide hole on first
2b and first time guide hole 2c stagger setting are avoided that 2 rigidity of piston is unbalanced on the different warps of piston 2, guide hole 1d on second
It is avoided that 1 rigidity of valve body is unbalanced on the different warps of valve body 1 with second time guide hole 1e stagger setting.
Embodiment three：On the basis of embodiment two, the inside of the first X-shaped sealing ring 32 and the second X-shaped sealing ring 42
Inside is respectively equipped with the first connection ring 34 and the second connection ring 44；The lower edges of first connection ring 34 are respectively connected to keep off on first
Circle 31 and first time baffle ring 33, the lower edges of the second connection ring 44 are respectively connected to baffle ring 41 and second time baffle ring 43 on second.
First connection ring 34 can guarantee the linkage of baffle ring 31 and first time baffle ring 33 on first, and similarly the second connection ring 44 can guarantee second
The linkage of upper baffle ring 41 and second time baffle ring 43.
A kind of manufacturing method of hydraulic pressure Dynamic Seal combination formula high pressure seal structure, step are：
The first step goes out the germule of valve body 1 and piston 2 with lathe car, reserves the finishing thickness of 1mm；
Second step, from the periphery wall of preceding segment body 22 to internal drilling, the direction of drilling should respectively with guide hole 2b on first and
First time guide hole 2c is consistent, drills from the internal perisporium of rear valve chamber 1a to valve body 1, the direction of drilling should respectively with guide hole on second
1d and second time guide hole 1e are consistent；
Third walks, and the boring weldering that the periphery wall of segment body 22 preceding in second step exposes is sealed；
4th step, respectively by the germule smart car of valve body 1 and piston 2 into the size of final products；
Baffle ring 31 on pre-fabricated first and first time baffle ring 33 are affixed on the upper of the first seal groove 2a by the 5th step respectively
Lower surface so that guide hole 2b in the first upper guide post 311 alignment first, first time guide post 331 is directed at first time guide hole 2c, simultaneously will
First X-shaped sealing ring 32 is filled on first between baffle ring 31 and first time baffle ring 33；By 41 He of baffle ring on pre-fabricated second
Second time baffle ring 43 is affixed on the upper and lower surface of the second seal groove 1c respectively so that guide hole 1d in the second upper guide post 411 alignment second,
Second time guide post 431 is directed at second time guide hole 1e, while the second X-shaped sealing ring 42 is filled in 41 and second lower block of baffle ring on second
Between circle 43；
Piston 2 and valve body 1 are coordinated completion by the 6th step.
Highly preferred embodiment of the present invention has illustrated, and the various change or remodeling made by those of ordinary skill in the art are not
It can depart from the scope of the present invention.
Claims (7)
1. a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure, including the axial piston (2) for being fitted to valve body (1), feature
It is：The valve body (1) is formed on the preceding valve chamber (1b) of rear valve chamber (1a), the piston including rear valve chamber (1a) and coaxial expansion
(2) the preceding segment body (22) of rear segment body (21) is formed on including rear segment body (21) and coaxial expansion, the preceding segment body (22) slip is set on
The preceding valve chamber (1b), the rear segment body (21) slide be set on the rear valve chamber (1a), the preceding valve chamber (1b) with
Described rear valve chamber (1a) intersection is laterally provided with oiler (5)；The preceding segment body (22) is including being located on preceding segment body (22)
The first seal groove (2a), the valve body (1) further included set on rear valve chamber (1a) the second seal groove of inner wall (1c), described
One seal groove (2a) is fitted with the first sealing ring (3), and second seal groove (1c) is fitted with the second sealing ring (4)；
First sealing ring (3) including be sequentially superimposed from top to bottom first on baffle ring (31), the first X-shaped sealing ring (32)
With first time baffle ring (33)；Second sealing ring (4) including be sequentially superimposed from top to bottom second on baffle ring (41), second
X-shaped sealing ring (42) and second time baffle ring (43)；
The preceding segment body (22) is including opening respectively in guide hole (2b) and on the first of the first seal groove (2a) upper wall and lower wall
Guide hole (2c) once；Baffle ring (31) is including sliding on be placed on described first in guide hole (2b) first on described first
Guide post (311), first time baffle ring (33) under sliding be placed in first time guide hole (2c) first including leading
Column (331)；The valve body (1) is including opening respectively in guide hole (1d) and on the second of the second seal groove (1c) upper wall and lower wall
Two times guide holes (1e)；Baffle ring (41) is including sliding on be placed on described second in guide hole (1d) second on described second
Guide post (411), second time baffle ring (43) under sliding be placed in second time guide hole (1e) second including leading
Column (431)；
On described first end of guide hole (2b) and the end of first time guide hole (2c) favour respectively it is described before
The peripheral direction of segment body (22), the axle center extension line of guide hole (2b) and first time guide hole (2c) crosses on described first
It is internal in the piston (2)；The end of guide hole (1d) and the end of second time guide hole (1e) point on described second
Described rear valve chamber (1a) direction is not favoured；The axle center of guide hole (1d) and second time guide hole (1e) on described second
It is external that extension line is intersected in the rear valve chamber (1a).
2. a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure according to claim 1, it is characterized in that：Described first
Upper guide hole (2b), first time guide hole (2c), guide hole (1d) and second time guide hole (1e) are respectively round platform tapered bore on second；Institute
The first upper guide post (311), first time guide post (331), the second upper guide post (411) and the second time guide post (431) stated are respectively gradually
Contracting shape round platform column.
3. a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure according to claim 2, it is characterized in that：Described first
Upper guide post (311), first time guide post (331), the second upper guide post (411) and second time guide post (431) are respectively anti-deformation round platform
Column.
4. a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure according to claim 3, it is characterized in that：Described first
Upper guide post (311), first time guide post (331), the second upper guide post (411) and second time guide post (431) difference clearance fit are in institute
Guide hole (2b) on first stated, first time guide hole (2c), guide hole (1d) and second time guide hole (1e) on second；On described first
Baffle ring (31) and first time baffle ring (33) slide the upper and lower surface set on first seal groove (2a) respectively；It is described
Second on baffle ring (41) and second time baffle ring (43) slide respectively set on second seal groove (1c) up and down
Surface.
5. a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure according to claim 4, it is characterized in that：Described first
Upper baffle ring (31), first time baffle ring (33), baffle ring (41) and second time baffle ring (43) are anti-shape-changing material on second；Described
Guide hole (2b) and first time guide hole (2c) are projected as being arranged at intervals on piston (2) same cross section on one；Described second
The projection of upper guide hole (1d) and second time guide hole (1e) on piston (2) same cross section is also to be arranged at intervals.
6. a kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure according to claim 5, it is characterized in that：Described first
The first connection ring (34) and are respectively equipped on the inside of the inside of X-shaped sealing ring (32) and second X-shaped sealing ring (42)
Two connection rings (44)；The lower edges of first connection ring (34) are respectively connected to baffle ring (31) and first on described first
Lower baffle ring (33), the lower edges of second connection ring (44) are respectively connected on described second under baffle ring (41) and second
Baffle ring (43).
7. a kind of manufacturing method of hydraulic pressure Dynamic Seal combination formula high pressure seal structure according to claim 6, step are：
The first step goes out the germule of valve body (1) and piston (2) with lathe car, reserves the finishing thickness of 1mm；
Second step, from the periphery wall of preceding segment body (22) to internal drilling, the direction of drilling should respectively with guide hole on first (2b) and
First time guide hole (2c) unanimously, from the internal perisporium of rear valve chamber (1a) to valve body (1) drills, and the direction of drilling should be respectively with second
Upper guide hole (1d) is consistent with second time guide hole (1e)；
Third walks, and the boring weldering that the periphery wall of segment body (22) preceding in second step exposes is sealed；
4th step, respectively by the germule smart car of valve body (1) and piston (2) into the size of final products；
Baffle ring (31) on pre-fabricated first and first time baffle ring (33) are affixed on first seal groove by the 5th step respectively
The upper and lower surface of (2a) so that guide hole (2b) in the first upper guide post (311) alignment first, first time guide post (331) alignment first
Lower guide hole (2c), while the first X-shaped sealing ring (32) is filled on first between baffle ring (31) and first time baffle ring (33)；It will be pre-
Baffle ring (41) and second time baffle ring (43) are affixed on the upper and lower surface of second seal groove (1c) respectively on second first made,
So that guide hole (1d) in the second upper guide post (411) alignment second, second time guide post (431) is directed at second time guide hole (1e), simultaneously
By the second X-shaped sealing ring (42) plug on second between baffle ring (41) and second time baffle ring (43)；
6th step completes piston (2) and valve body (1) cooperation.
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| CN201611249365.3A CN106594280B (en) | 2016-12-29 | 2016-12-29 | A kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure and its manufacturing method |
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| CN201611249365.3A CN106594280B (en) | 2016-12-29 | 2016-12-29 | A kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure and its manufacturing method |
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| CN106594280B true CN106594280B (en) | 2018-06-26 |
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| CN108194638B (en) * | 2018-01-09 | 2022-05-03 | 上海康晟航材科技股份有限公司 | Mechanical sealing device and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358000A (en) * | 1980-11-10 | 1982-11-09 | Rockwell International Corporation | Multiple piston friction brake |
| CN102345695A (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Normally open brake of hydraulic transmission device |
| CN203374806U (en) * | 2013-07-12 | 2014-01-01 | 艾志（南京）环保管接技术股份有限公司 | Anti-deformation hook-embedded connection type combined sealing ring for hydraulic cylinder and air cylinder |
| CN204213215U (en) * | 2014-09-28 | 2015-03-18 | 宁波广天赛克思液压有限公司 | A kind of multiple disc hydraulic break for transmission shaft braking |
| CN206320294U (en) * | 2016-12-29 | 2017-07-11 | 赛克思液压科技股份有限公司 | A kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure |
-
2016
- 2016-12-29 CN CN201611249365.3A patent/CN106594280B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358000A (en) * | 1980-11-10 | 1982-11-09 | Rockwell International Corporation | Multiple piston friction brake |
| CN102345695A (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Normally open brake of hydraulic transmission device |
| CN203374806U (en) * | 2013-07-12 | 2014-01-01 | 艾志（南京）环保管接技术股份有限公司 | Anti-deformation hook-embedded connection type combined sealing ring for hydraulic cylinder and air cylinder |
| CN204213215U (en) * | 2014-09-28 | 2015-03-18 | 宁波广天赛克思液压有限公司 | A kind of multiple disc hydraulic break for transmission shaft braking |
| CN206320294U (en) * | 2016-12-29 | 2017-07-11 | 赛克思液压科技股份有限公司 | A kind of hydraulic pressure Dynamic Seal combination formula high pressure seal structure |
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| Publication number | Publication date |
|---|---|
| CN106594280A (en) | 2017-04-26 |
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