CN105650057A - 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
- CN105650057A CN105650057A CN201610203859.1A CN201610203859A CN105650057A CN 105650057 A CN105650057 A CN 105650057A CN 201610203859 A CN201610203859 A CN 201610203859A CN 105650057 A CN105650057 A CN 105650057A
- Authority
- CN
- China
- Prior art keywords
- self
- rubber sleeve
- seal rubber
- annular
- defence block
- 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.)
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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. Relate generally to the dust guard of a kind of working roll balancing cylinder self-defence block.
Background technology
Along with the raising of the market demand, the production capacity of milling train also constantly strengthens, but in the use procedure of milling train, and the problem such as the service life of working roll balancing cylinder is short, serious wear, leakage is comparatively prominent. Wherein, due to dust-proof not in place, balancing cylinder after a period of operation, enters impurity in self-defence block and the gap of piston rod, causes the component wear such as self-defence block, piston rod, reduce the service life of balancing cylinder. The working roll balancing cylinder self-defence block of existing a part of milling train adopts dust-tight manner, namely has cannelure in the adjustment section of self-defence block, installs O-ring seals in cannelure, and the elastic crush seal utilizing O-ring seals is dust-proof. Though this dust-tight manner simple in construction, but it is primarily present following shortcoming:
1, impurity is easily piled up near O-ring seals, and along with the accumulation of impurity, the abrasion of O-ring seals can aggravate, and reduces the service life of O-ring seals and assembly.
2, O-ring seals directly contacts with foreign matter, and easy to wear, dust-proof effect is bad.
3, after O-ring seals abrasion, it is impossible to automatically compensate, affect self-regulation effect.
When 4, installing, the concentricity that self-defence block is arranged in piston rod is bad.
Summary of the invention
It is contemplated that overcome the defect of prior art, it is therefore an objective to provide the dust guard of the working roll balancing cylinder self-defence block of a kind of mounting or dismounting convenience, long service life and good dustproof effect.
For achieving the above object, the technical solution used in the present invention: the coaxial line that described self-defence block is made up of self-defence block adjustment section and self-defence block active section is overall, self-defence block adjusts the diameter of section more than self-defence block active section diameter. Described dust guard is made up of seal rubber sleeve and gland, and seal rubber sleeve is embedded in gland concentrically mutually. Described seal rubber sleeve is tightly placed in the face of cylinder of self-defence block active section, and the upper surface of seal rubber sleeve is close to self-defence block and is adjusted the annular end face of section, and described gland is connected by screw and piston rod end face are fixing.
Described gland is hollow circular block, and the upper plane of hollow circular block is provided with annular boss concentrically, and the outside diameter of annular boss is identical with the inner diameter with piston rod, and the middle position of described gland inwall has annular positioning groove.
Described 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 active section length H, and seal rubber sleeve outer diameter is equal with the nominal size of piston rod inner diameter; The outer wall of seal rubber sleeve has twice cannelure.
The twice annular fluted shaft of described seal rubber sleeve to annular outer wall mutually embedding with the annular positioning groove of described gland.
The axial length L1 of the contact surface of seal rubber sleeve and piston rod inwall is equal to self-defence block with the height L2 sum of described gland annular boss and adjusts the distance L between section and piston rod end face.
The cross sectional shape of the twice cannelure of described seal rubber sleeve is identical, is rectangular recess; The width of the twice cannelure of described seal rubber sleeve is equal with the width of the annular inner wall of the annular positioning groove both sides of described gland; The twice annular fluted shaft of described seal rubber sleeve to the width of annular outer wall equal with the width of the annular positioning groove of described gland.
Described seal rubber sleeve is nitrile rubber.
Owing to adopting technique scheme, the present invention compared with prior art has the advantage that
1, the sealed preventing dust device of the present invention, effectively prevent the impurity accumulation at sealing surface, decreases abrasion, improve the service life of seal rubber sleeve, reduce use cost.
2, the present invention adopts the dust-tight manner strengthening seal rubber sleeve with self-defence block axially and radially contact surface, makes impurity hardly enter in the gap of piston rod and self-defence block, good dustproof effect. In use procedure, seal rubber sleeve can by the adaptive equalization of seal rubber sleeve with self-defence block contact surface because of the fretting wear that stress causes, it is ensured that dust-proof effect.
3, the axially contact face length between the seal rubber sleeve of the present invention and self-defence block, can with piston rod true concentric when self-defence block is installed, it is ensured that piston rod and cylinder barrel do not produce skewed relative.
4, the present invention adopts and is screwed connection, and easy accessibility is conducive to the replacing of seal rubber sleeve.
Therefore, the present invention has the feature of mounting or dismounting convenience, long service life and good dustproof effect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the close-up schematic view of Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, not the restriction to its protection domain.
Embodiment 1
A kind of dust guard of working roll balancing cylinder self-defence block. As it is shown in figure 1, the coaxial line that described self-defence block 5 is made up of self-defence block adjustment section and self-defence block active section is overall, self-defence block adjusts the diameter of section more than self-defence block active section diameter. Described dust guard is made up of seal rubber sleeve 1 and gland 2, and seal rubber sleeve 1 is embedded in gland 2 concentrically mutually. Described seal rubber sleeve 1 is tightly placed in the face of cylinder of self-defence block active section, and the upper surface of seal rubber sleeve 1 is close to self-defence block and is adjusted the annular end face of section, and described gland 2 is connected by screw 3 and piston rod 4 end face are fixing.
As it is shown in figure 1, described gland 2 is hollow circular block, the upper plane of hollow circular block is provided with annular boss concentrically, and the outside diameter of annular boss is identical with the inner diameter of piston rod 4, and the middle position of described gland 2 inwall has annular positioning groove.
As it is shown in figure 1, described seal rubber sleeve 1 is short circular tube shaped, the length of seal rubber sleeve 1 is 0.6 ~ 0.65 times of self-defence block active section length H, and 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 has twice cannelure.
As it is shown in figure 1, the twice annular fluted shaft of described seal rubber sleeve 1 to annular outer wall mutually embedding with the annular positioning groove of described gland 2.
As in figure 2 it is shown, the axial length L1 of the contact surface of seal rubber sleeve 1 and piston rod 4 inwall is equal to self-defence block with the height L2 sum of described gland 2 annular boss adjusts the distance L between section and piston rod 4 end face.
As it is shown in figure 1, the cross sectional shape of the twice cannelure of described seal rubber sleeve 1 is identical, it is rectangular recess; The width of the twice cannelure of described seal rubber sleeve 1 is equal with the width of the annular inner wall of the annular positioning groove both sides of described gland 2; The twice annular fluted shaft of described seal rubber sleeve 1 to the width of annular outer wall equal with the width of the annular positioning groove of described gland 2.
Described seal rubber sleeve 1 is nitrile rubber.
Embodiment 2
A kind of dust guard of working roll balancing cylinder self-defence block. Except following technical parameter, all the other are with embodiment 1:
The length of seal rubber sleeve 1 is 0.65 ~ 0.7 times of self-defence block active section length H.
This detailed description of the invention compared with prior art has the advantage that
1, the sealed preventing dust device of this detailed description of the invention, effectively prevent the impurity accumulation at sealing surface, decreases abrasion, improve the service life of seal rubber sleeve 1, reduce use cost.
2, this detailed description of the invention adopts the dust-tight manner strengthening seal rubber sleeve 1 with self-defence block 5 axially and radially contact surface, makes impurity hardly enter in the gap of piston rod 4 and self-defence block 5, good dustproof effect. In use procedure, seal rubber sleeve 1 can by the adaptive equalization of seal rubber sleeve 1 with self-defence block 5 contact surface because of the fretting wear that stress causes, it is ensured that dust-proof effect.
3, the axially contact face length between the seal rubber sleeve 1 of this detailed description of the invention and self-defence block 5, can with piston rod 4 true concentric when self-defence block 5 is installed, it is ensured that piston rod and cylinder barrel do not produce skewed relative.
4, this detailed description of the invention is adopted and is screwed connection, and easy accessibility is conducive to the replacing of seal rubber sleeve 1.
Therefore, this detailed description of the invention has the feature of mounting or dismounting convenience, long service life and good dustproof effect.
Claims (3)
1. the dust guard of a working roll balancing cylinder self-defence block, the coaxial line that described self-defence block (5) is made up of self-defence block adjustment section and self-defence block active section is overall, self-defence block adjusts the diameter of section more than self-defence block active section diameter, it is characterized in that described dust guard is made up of seal rubber sleeve (1) and gland (2), seal rubber sleeve (1) is embedded in gland (2) concentrically mutually; Described seal rubber sleeve (1) is tightly placed in the face of cylinder of self-defence block active section, the upper surface of seal rubber sleeve (1) is close to self-defence block and is adjusted the annular end face of section, and described gland (2) is connected by screw (3) and piston rod (4) end face are fixing;
Described gland (2) is hollow circular block, the upper plane of hollow circular block is provided with annular boss concentrically, the outside diameter of annular boss is identical with the inner diameter of piston rod (4), and the middle position of described gland (2) inwall has annular positioning groove;
Described seal rubber sleeve (1) is short circular tube shaped, the length of seal rubber sleeve (1) is 0.6��0.7 times of self-defence block active section length H, and 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) has twice cannelure;
The twice annular fluted shaft of described seal rubber sleeve (1) to annular outer wall mutually embedding with the annular positioning groove of described gland (2);
The axial length L1 of the contact surface of seal rubber sleeve (1) and piston rod (4) inwall is equal to self-defence block with the height L2 sum of described gland (2) annular boss and adjusts the distance L between section and piston rod (4) end face.
2. the dust guard of working roll balancing cylinder self-defence block according to claim 1, it is characterised in that the cross sectional shape of the twice cannelure of described seal rubber sleeve (1) is identical, is rectangular recess; The width of the twice cannelure of described seal rubber sleeve (1) is equal with the width of the annular inner wall of the annular positioning groove both sides of described gland (2); The twice annular fluted shaft of described seal rubber sleeve (1) to the width of annular outer wall equal with the width of the annular positioning groove of described gland (2).
3. the dust guard of working roll balancing cylinder self-defence block according to claim 1, it is characterised in that described seal rubber sleeve (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 true CN105650057A (en) | 2016-06-08 |
| CN105650057B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027261A (en) * | 2018-10-10 | 2018-12-18 | 德清恒升管件有限公司 | A kind of pneumatic angle pedestal valve door |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1073140A (en) * | 1996-07-22 | 1998-03-17 | Aleaciones De Metales Sinterisados Sa | Piston for shock absorber |
| 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 |
-
2016
- 2016-04-01 CN CN201610203859.1A patent/CN105650057B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1073140A (en) * | 1996-07-22 | 1998-03-17 | Aleaciones De Metales Sinterisados Sa | Piston for shock absorber |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027261A (en) * | 2018-10-10 | 2018-12-18 | 德清恒升管件有限公司 | A kind of pneumatic angle pedestal valve door |
| CN109027261B (en) * | 2018-10-10 | 2024-05-28 | 德清恒升管件有限公司 | Pneumatic angle seat valve |
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| Publication number | Publication date |
|---|---|
| CN105650057B (en) | 2017-05-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170524 Termination date: 20190401 |