CN205446260U - A compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself - Google Patents
A compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself Download PDFInfo
- Publication number
- CN205446260U CN205446260U CN201620268603.4U CN201620268603U CN205446260U CN 205446260 U CN205446260 U CN 205446260U CN 201620268603 U CN201620268603 U CN 201620268603U CN 205446260 U CN205446260 U CN 205446260U
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- China
- Prior art keywords
- rubber sleeve
- self
- seal rubber
- annular
- defence block
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Abstract
The utility model relates to a compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself. Its technical scheme is: the piece (5) of defending oneself is whole with the coaxial line of the piece active section constitution of defending oneself for self -defence piece regulator section, and the diameter of the piece regulator section of defending oneself is greater than an active section diameter of defending oneself. Compound dirt proof boot comprises sealed gum cover (1) and gland (2), and concentricityly inlay mutually in gland (2) sealed gum cover (1). Sealed gum cover (1) tight cover is on the face of cylinder of defending oneself the piece active section, and the annular terminal surface of the piece regulator section of defending oneself is hugged closely to the up end of sealed gum cover (1), gland (2) are through screw (3) and piston rod (4) terminal surface fixed connection. The utility model discloses can effectively solve the problem that adopts the dustproof in -process of O shape sealing washer to appear among the prior art, have the convenience installed and removed, long service life and dustproof effectual characteristics.
Description
Technical field
This utility model belongs to working roll balancing cylinder self-defence block technical field.Relate generally to a kind of composite dust-proof set for working roll balancing cylinder self-defence block.
Background technology
Along with the raising of the market demand, the production capacity of milling train the most constantly strengthens, but during the use of milling train, and the problem such as the service life of working roll balancing cylinder is short, serious wear, leakage is the most 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 uses dust-tight manner, i.e. 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
This utility model is intended to overcome the defect of prior art, it is therefore an objective to provide a kind of be convenient to mount and dismount, length in service life and the composite dust-proof set for working roll balancing cylinder self-defence block of good dustproof effect.
For achieving the above object, the technical solution adopted in the utility model: 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 composite dust-proof set is made up of seal rubber sleeve and gland, and seal rubber sleeve is embedded in gland 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 0.6 ~ 0.7 times of a length of self-defence block active section length H of seal rubber sleeve, 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.
Axial length L1 of the contact surface of seal rubber sleeve and piston rod inwall adjusts distance L between section and piston rod end face with the height L2 sum of described gland annular boss equal to self-defence block.
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 using technique scheme, this utility model compared with prior art has the advantage that
1, closed composite dust-proof set of the present utility model, effectively prevent the impurity accumulation at sealing surface, decreases abrasion, improve the service life of seal rubber sleeve, reduce use cost.
2, this utility model uses 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.During use, seal rubber sleeve can be 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 seal rubber sleeve of the present utility model and self-defence block, can be 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, this utility model is adopted and is screwed connection, the replacing of easy accessibility, beneficially seal rubber sleeve.
Therefore, this utility model have be convenient to mount and dismount, length in service life and the feature of good dustproof effect.
Accompanying drawing illustrates:
Fig. 1 is a kind of structural representation of the present utility model；
Fig. 2 is the close-up schematic view of Fig. 1.
Detailed description of the invention:
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings, not the restriction to its protection domain.
Embodiment 1
A kind of composite dust-proof set for 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 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, 0.6 ~ 0.65 times of a length of self-defence block active section length H of seal rubber sleeve 1, 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, axial length L1 of the contact surface of seal rubber sleeve 1 and piston rod 4 inwall adjusts distance L between section and piston rod 4 end face with the height L2 sum of described gland 2 annular boss equal to self-defence block.
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 composite dust-proof set for working roll balancing cylinder self-defence block.In addition to following technical parameter, remaining is with embodiment 1:
0.65 ~ 0.7 times of a length of self-defence block active section length H of seal rubber sleeve 1.
This detailed description of the invention compared with prior art has the advantage that
1, the closed composite dust-proof set 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 uses 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.During use, seal rubber sleeve 1 can be 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 be 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, easy accessibility, beneficially the replacing of seal rubber sleeve 1.
Therefore, this detailed description of the invention have be convenient to mount and dismount, length in service life and the feature of good dustproof effect.
Claims (3)
1. the composite dust-proof set for 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 composite dust-proof set is made up of seal rubber sleeve (1) and gland (2), seal rubber sleeve (1) is embedded in gland (2) 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, 0.6～0.7 times of a length of self-defence block active section length H of seal rubber sleeve (1), 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)；
Axial length L1 of the contact surface of seal rubber sleeve (1) and piston rod (4) inwall adjusts distance L between section and piston rod (4) end face with the height L2 sum of described gland (2) annular boss equal to self-defence block.
Composite dust-proof set for working roll balancing cylinder self-defence block the most 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).
Composite dust-proof set for working roll balancing cylinder self-defence block the most 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 |
|---|---|---|---|
| CN201620268603.4U CN205446260U (en) | 2016-04-01 | 2016-04-01 | A compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620268603.4U CN205446260U (en) | 2016-04-01 | 2016-04-01 | A compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446260U true CN205446260U (en) | 2016-08-10 |
Family
ID=56609458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620268603.4U Withdrawn - After Issue CN205446260U (en) | 2016-04-01 | 2016-04-01 | A compound dirt proof boot that is used for balanced hydro -cylinder of working roll piece of defending oneself |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650057A (en) * | 2016-04-01 | 2016-06-08 | 武汉科技大学 | Dustproof device of working roller balance oil cylinder self-defense block |
-
2016
- 2016-04-01 CN CN201620268603.4U patent/CN205446260U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650057A (en) * | 2016-04-01 | 2016-06-08 | 武汉科技大学 | Dustproof device of working roller balance oil cylinder self-defense block |
| CN105650057B (en) * | 2016-04-01 | 2017-05-24 | 武汉科技大学 | Dustproof device of working roller balance oil cylinder self-defense block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160810 Effective date of abandoning: 20170524 |