CN105650057B - Dustproof device of working roller balance oil cylinder self-defense block - Google Patents
Dustproof device of working roller balance oil cylinder self-defense block Download PDFInfo
- Publication number
- CN105650057B CN105650057B CN201610203859.1A CN201610203859A CN105650057B CN 105650057 B CN105650057 B CN 105650057B CN 201610203859 A CN201610203859 A CN 201610203859A CN 105650057 B CN105650057 B CN 105650057B
- Authority
- CN
- China
- Prior art keywords
- self
- rubber sleeve
- seal rubber
- gland
- annular
- 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.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a dustproof device of a working roller balance oil cylinder self-defense block. According to the technical scheme, the self-defense block (5) is a coaxial whole formed by a self-defense block adjusting section and a self-defense block working section, and the diameter of the self-defense block adjusting section is larger than the self-defense block working section. The dustproof device comprises a sealing rubber sleeve (1) and a gland (2), wherein the sealing rubber sleeve (1) is concentrically embedded into the gland (2); the sealing rubber sleeve (1) tightly sleeves the cylindrical face of the self-defense block working section, the upper end face of the sealing rubber sleeve (1) closely attaches to the annular end face of the self-defense block adjusting section, and the gland (2) is fixedly connected with the end face of a piston rod (4) through a screw (3). The dustproof device has the advantages that the problems caused by the fact that an O-shaped sealing ring is used during a dustproof process in the prior art can be effectively solved, and the dustproof device is convenient to mount and demount, long in service life and good in dustproof effect.
Description
Technical field
The invention belongs to working roll balancing cylinder self-defence block technical field.A kind of working roll balancing cylinder is related generally to defend oneself
The dust guard of block.
Background technology
With the raising of the market demand, the production capacity of milling train also constantly strengthens, but during the use of milling train, work
The service life of roller balancing cylinder is short, serious wear, leakage the problems such as more protrude.Wherein, due to dust-proof not in place, equilibrium oil
Cylinder after a period of operation, impurity is entered in self-defence block and the gap of piston rod, causes the components such as self-defence block, piston rod to grind
Damage, reduce the service life of balancing cylinder.The working roll balancing cylinder self-defence block of existing a part of milling train uses dust-tight manner,
Annular groove is provided with the adjustment section of self-defence block, O-ring seals are installed in annular groove, squeezed using the elasticity of O-ring seals
Means of press seals is dust-proof.Though this dust-tight manner simple structure, is primarily present following shortcoming：
1st, impurity is easily piled up near O-ring seals, and with the accumulation of impurity, the abrasion of O-ring seals can aggravate, drop
The low service life of O-ring seals and component.
2nd, O-ring seals are directly contacted with foreign matter, easy to wear, and dust-proof effect is bad.
3rd, after O-ring seals abrasion, it is impossible to automatic compensation, self-regulation effect is influenceed.
When the 4th, installing, the concentricity that self-defence block is arranged in piston rod is bad.
The content of the invention
It is contemplated that overcoming the defect of prior art, it is therefore an objective to provide one kind be convenient to mount and dismount, long service life and dust-proof
The dust guard of the good working roll balancing cylinder self-defence block of effect.
To achieve the above object, the technical solution adopted by the present invention：The self-defence block is by self-defence block adjustment section and self-defence
Block active section composition coaxial line entirety, self-defence block adjustment section with diameter greater than self-defence block active section diameter.The dust guard
It is made up of seal rubber sleeve and gland, seal rubber sleeve is concentrically mutually embedded in gland.The seal rubber sleeve is tightly placed in self-defence block work
Make the face of cylinder of section, the annular end face of self-defence block adjustment section is close in the upper surface of seal rubber sleeve, and the gland passes through screw and work
Stopper rod end face is fixedly connected.
The gland is hollow circular block, and the upper plane of hollow circular block is concentrically provided with annular boss, annular boss
Outside diameter it is identical with the inner diameter of piston rod, the middle position of the gland inwall is provided with annular positioning groove.
The seal rubber sleeve is short circular tube shaped, and the length of seal rubber sleeve is 0.6 ~ 0.7 times of self-defence block work segment length H,
Seal rubber sleeve outer diameter is equal with the nominal size of piston rod inner diameter；The outer wall of seal rubber sleeve is provided with twice annular groove.
The seal rubber sleeve twice annular fluted shaft to annular outer wall it is mutually embedding with the annular positioning groove of the gland.
The axial length L1 of the contact surface of seal rubber sleeve and piston rod inwall with the gland annular boss height L2 it
And equal between self-defence block adjustment section and piston rod end face apart from L.
The cross sectional shape of the twice annular groove of the seal rubber sleeve is identical, is rectangular recess；The two of the seal rubber sleeve
The width of road annular groove is equal with the width of the annular inner wall of the annular positioning groove both sides of the gland；The two of the seal rubber sleeve
The width of the annular outer wall between road annular groove axial direction is equal with the width of the annular positioning groove of the gland.
The seal rubber sleeve is nitrile rubber.
There is advantages below compared with prior art due to using above-mentioned technical proposal, the present invention：
1st, sealed preventing dust device of the invention, effectively prevent accumulation of the impurity in sealing surface, reduce abrasion, improve
The service life of seal rubber sleeve, reduces use cost.
2nd, the present invention is difficult impurity using the dust-tight manner for increasing seal rubber sleeve and self-defence block axially and radially contact surface
Into in the gap of piston rod and self-defence block, good dustproof effect.During use, seal rubber sleeve is because of fretting wear caused by stress
Can be by the adaptive equalization of seal rubber sleeve and self-defence block contact surface, it is ensured that dust-proof effect.
3rd, the axially facing surface between seal rubber sleeve of the invention and self-defence block is long, can be accurate with piston rod when self-defence block is installed
Really with one heart, it is ensured that piston rod does not produce skewed relative with cylinder barrel.
4th, the present invention is fixedly connected using screw, and convenient disassembly is conducive to the replacing of seal rubber sleeve.
Therefore, the present invention have be convenient to mount and dismount, long service life and the characteristics of good dustproof effect.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the invention；
Fig. 2 is the close-up schematic view of Fig. 1.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and detailed description, not to the limit of its protection domain
System.
Embodiment 1
A kind of dust guard of working roll balancing cylinder self-defence block.As shown in figure 1, the self-defence block 5 is adjusted by self-defence block
Whole section and self-defence block active section composition coaxial line entirety, self-defence block adjustment section with diameter greater than self-defence block active section diameter.Institute
State dust guard to be made up of seal rubber sleeve 1 and gland 2, seal rubber sleeve 1 is concentrically mutually embedded in gland 2.The seal rubber sleeve 1
The face of cylinder of self-defence block active section is tightly placed in, the annular end face of self-defence block adjustment section, the pressure are close in the upper surface of seal rubber sleeve 1
Lid 2 is fixedly connected by screw 3 with the end face of piston rod 4.
As shown in figure 1, the gland 2 is hollow circular block, the upper plane of hollow circular block is concentrically provided with convex annular
Platform, the outside diameter of annular boss is identical with the inner diameter of piston rod 4, and the middle position of the inwall of the gland 2 is provided with
Annular positioning groove.
As shown in figure 1, the seal rubber sleeve 1 is short circular tube shaped, the length of seal rubber sleeve 1 is self-defence block work segment length H
0.6 ~ 0.65 times, the outer diameter of seal rubber sleeve 1 is equal with the nominal size of the inner diameter of piston rod 4；The outer wall of seal rubber sleeve 1
It is provided with twice annular groove.
As shown in figure 1, the twice annular fluted shaft of the seal rubber sleeve 1 to annular outer wall and the gland 2 annular
Locating slot is mutually embedding.
As shown in Fig. 2 the axial length L1 of the contact surface of seal rubber sleeve 1 and the inwall of piston rod 4 is with the convex annular of the gland 2
The height L2 sums of platform be equal between self-defence block adjustment section and the end face of piston rod 4 apart from L.
As shown in figure 1, the cross sectional shape of the twice annular groove of the seal rubber sleeve 1 is identical, rectangular recess is；It is described close
The width of the twice annular groove of sealing set 1 is equal with the width of the annular inner wall of the annular positioning groove both sides of the gland 2；It is described
Seal rubber sleeve 1 twice annular fluted shaft to annular outer wall width it is equal with the width of the annular positioning groove of the gland 2.
The seal rubber sleeve 1 is nitrile rubber.
Embodiment 2
A kind of dust guard of working roll balancing cylinder self-defence block.In addition to following technical parameters, remaining is with embodiment 1：
The length of seal rubber sleeve 1 is 0.65 ~ 0.7 times of self-defence block work segment length H.
This specific embodiment has advantages below compared with prior art：
1st, the sealed preventing dust device of this specific embodiment, effectively prevent accumulation of the impurity in sealing surface, reduce
Abrasion, improves the service life of seal rubber sleeve 1, reduces use cost.
2nd, this specific embodiment is using the dust-tight manner for increasing seal rubber sleeve 1 and self-defence block 5 axially and radially contact surface,
In impurity is hardly entered the gap of piston rod 4 and self-defence block 5, good dustproof effect.During use, seal rubber sleeve 1 is because of stress
Caused fretting wear can be by the adaptive equalization of seal rubber sleeve 1 and the contact surface of self-defence block 5, it is ensured that dust-proof effect.
3rd, the axially facing surface between the seal rubber sleeve 1 and self-defence block 5 of this specific embodiment is long, when self-defence block 5 is installed
Can be with the true concentric of piston rod 4, it is ensured that piston rod does not produce skewed relative with cylinder barrel.
4th, this specific embodiment is fixedly connected using screw, convenient disassembly, is conducive to the replacing of seal rubber sleeve 1.
Therefore, this specific embodiment have be convenient to mount and dismount, long service life and the characteristics of good dustproof effect.
Claims (3)
1. a kind of dust guard of working roll balancing cylinder self-defence block, the self-defence block (5) is by self-defence block adjustment section and self-defence
Block active section composition coaxial line entirety, self-defence block adjustment section with diameter greater than self-defence block active section diameter, it is characterised in that institute
State dust guard to be made up of seal rubber sleeve (1) and gland (2), seal rubber sleeve (1) is concentrically mutually embedded in gland (2)；It is described
Seal rubber sleeve (1) is tightly placed in the face of cylinder of self-defence block active section, and the ring of self-defence block adjustment section is close in the upper surface of seal rubber sleeve (1)
Shape end face, the gland (2) is fixedly connected by screw (3) with piston rod (4) end face；
The gland (2) is hollow circular block, and the upper plane of hollow circular block is concentrically provided with annular boss, annular boss
Outside diameter is identical with the inner diameter of piston rod (4), and the middle position of gland (2) inwall is provided with annular positioning groove；
The seal rubber sleeve (1) is short circular tube shaped, and the length of seal rubber sleeve (1) is the 0.6~0.7 of self-defence block work segment length H
Times, seal rubber sleeve (1) outer diameter is equal with the nominal size of piston rod (4) inner diameter；The outer wall of seal rubber sleeve (1) is provided with
Twice annular groove；
The seal rubber sleeve (1) twice annular fluted shaft to annular outer wall it is mutually embedding with the annular positioning groove of the gland (2)；
The axial length L1 of the contact surface of seal rubber sleeve (1) and piston rod (4) inwall with the gland (2) annular boss height
L2 sums be equal between self-defence block adjustment section and piston rod (4) end face apart from L.
2. the dust guard of working roll balancing cylinder self-defence block according to claim 1, it is characterised in that the fluid sealant
The cross sectional shape for covering the twice annular groove of (1) is identical, is rectangular recess；The width of the twice annular groove of the seal rubber sleeve (1)
Degree is equal with the width of the annular inner wall of the annular positioning groove both sides of the gland (2)；The twice annular of the seal rubber sleeve (1)
Fluted shaft to annular outer wall width it is equal with the width of the annular positioning groove of the gland (2).
3. the dust guard of working roll balancing cylinder self-defence block according to claim 1, it is characterised in that the fluid sealant
Set (1) is nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203859.1A CN105650057B (en) | 2016-04-01 | 2016-04-01 | Dustproof device of working roller balance oil cylinder self-defense block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203859.1A CN105650057B (en) | 2016-04-01 | 2016-04-01 | Dustproof device of working roller balance oil cylinder self-defense block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105650057A CN105650057A (en) | 2016-06-08 |
| CN105650057B true CN105650057B (en) | 2017-05-24 |
Family
ID=56496934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610203859.1A Expired - Fee Related CN105650057B (en) | 2016-04-01 | 2016-04-01 | Dustproof device of working roller balance oil cylinder self-defense block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105650057B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027261B (en) * | 2018-10-10 | 2024-05-28 | 德清恒升管件有限公司 | Pneumatic angle seat valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6695064B2 (en) * | 2001-12-19 | 2004-02-24 | L. Murray Dallas | Slip spool and method of using same |
| CN201092988Y (en) * | 2007-09-10 | 2008-07-30 | 夏善海 | Hydraulic oil cylinder |
| CN103470764A (en) * | 2013-09-17 | 2013-12-25 | 常州液压成套设备厂有限公司 | Oil cylinder easy for adjusting compression amount of sealing ring |
| CN204164086U (en) * | 2014-09-26 | 2015-02-18 | 三一汽车制造有限公司 | The oil hydraulic cylinder of waterproof oil sealing, pumping mechanism and concrete pump |
| CN205446260U (en) * | 2016-04-01 | 2016-08-10 | 武汉科技大学 | A compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2138495B1 (en) * | 1996-07-22 | 2000-08-16 | Aleaciones De Metales Sinteriz | PISTON STRUCTURE FOR IMPACT SHOCK ABSORBER. |
-
2016
- 2016-04-01 CN CN201610203859.1A patent/CN105650057B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6695064B2 (en) * | 2001-12-19 | 2004-02-24 | L. Murray Dallas | Slip spool and method of using same |
| CN201092988Y (en) * | 2007-09-10 | 2008-07-30 | 夏善海 | Hydraulic oil cylinder |
| CN103470764A (en) * | 2013-09-17 | 2013-12-25 | 常州液压成套设备厂有限公司 | Oil cylinder easy for adjusting compression amount of sealing ring |
| CN204164086U (en) * | 2014-09-26 | 2015-02-18 | 三一汽车制造有限公司 | The oil hydraulic cylinder of waterproof oil sealing, pumping mechanism and concrete pump |
| CN205446260U (en) * | 2016-04-01 | 2016-08-10 | 武汉科技大学 | A compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105650057A (en) | 2016-06-08 |
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| PB01 | Publication | ||
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20190401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |