CN201773719U - Dust removing device for hydraulic piston - Google Patents
Dust removing device for hydraulic piston Download PDFInfo
- Publication number
- CN201773719U CN201773719U CN201020266047XU CN201020266047U CN201773719U CN 201773719 U CN201773719 U CN 201773719U CN 201020266047X U CN201020266047X U CN 201020266047XU CN 201020266047 U CN201020266047 U CN 201020266047U CN 201773719 U CN201773719 U CN 201773719U
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- China
- Prior art keywords
- piston
- hydraulic
- dust
- dust ring
- cap
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- Expired - Lifetime
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Abstract
The utility model discloses a dust removing device for a hydraulic piston. The dust removing device for the hydraulic piston comprises a hydraulic chamber body (1), hydraulic oil and a piston (4), wherein the hydraulic oil is filled in the chamber of the hydraulic chamber body (1); and the piston (4) performs linear motion along the inner wall of the hydraulic chamber body (1); a piston cover (5) is arranged at the port, connected with the piston (4), of the hydraulic chamber body (1); the piston cover (5) is sleeved on the piston (4); and an annular groove for placing a hydraulic seal ring (2) is reserved on the piston cover (5). The dust removing device for the hydraulic piston is characterized in that: the annular groove for accommodating a dust-proof ring (3) is also reserved on the piston cover (5); and the dust-proof ring (3) is arranged in the groove and is connected with the piston (4) in a sealed way. The structure can block particulate matters attached to the piston of a hydraulic spring operating mechanism out of the hydraulic oil chamber body in reciprocating motion, and does not cause the damage of a seal to cause an oil leakage phenomenon of the mechanism.
Description
Technical field
The utility model relates to the dust cleaning apparatus of a kind of hydraulic pressure spring operating mechanism of primary cut-out, particularly a kind of hydraulic piston.
Background technology
The hydraulic pressure spring operating mechanism that primary cut-out is joined, be to finish energy transfer process, and the energy storage of hydraulic pressure spring operating mechanism promote energy storage piston compression spring by hydraulic oil and realize by the piston rod moving linearly that high-pressure and hydraulic oil pushes the work forward in the cylinder.For guaranteeing reliable operating characteristic of hydraulic pressure spring operating mechanism and stable static energy storage state, guarantee that it is vital that hydraulic mechanism has reliable movable sealing.Because the part body of rod of piston is in the air, one deck particle may be adhered in the piston extending area, if can not in time clear up, piston particle attached to it in reciprocating motion may cause piston face wearing and tearing, pull, also particle can be brought in the fluid chamber when serious, cause seal to damage, cause consequences such as mechanism's leakage of oil.
The utility model content
The purpose of this utility model provides a kind of dedusting structure of hydraulic piston, this structure can be blocked in hydraulic pressure spring operating mechanism piston particle attached to it in reciprocating motion outside the hydraulic oil liquid cavity, can not cause seal to damage, cause mechanism's oil leakage phenomenon.
The utility model is achieved by following technical proposals: a kind of dust cleaning apparatus of hydraulic piston, comprise hydraulic chamber and be arranged on the hydraulic oil of hydraulic chamber inner chamber and carry out straight-line piston along the hydraulic chamber inwall, the port that joins at described hydraulic chamber and piston is provided with piston cap, piston cap is socketed on the piston and is provided with the seal groove of placing the hydraulic packing circle on this piston cap, it is characterized in that: also be provided with the cannelure that holds dust ring on described piston cap, dust ring places this groove and piston seal to join.
The cannelure of placing dust ring on the described piston cap is arranged in the piston cap lower port along on the sidewall, and on this dust ring cannelure and the piston cap outside the seal groove of set hydraulic packing circle.
The cannelure groove depth of dust ring is greater than the groove depth of the seal groove of adjacent hydraulic packing circle on the described piston cap.
Described dust ring takes the abrasion resistant polyurethane elastomeric material to make.
The utility model is by in piston cap movable sealing hole; design a cannelure that is used to pack into except that konisphere; join the special-shaped konisphere that removes; so that dedusting; and guaranteeing to remove konisphere by its elastic construction closely contacts with the surface of piston; finally reach the dust removing effects to piston face, the protection piston face prevents the leakage of oil that hydraulic seal is damaged and causes.
Description of drawings
Fig. 1 is the example structure schematic diagram;
Fig. 2 is that Fig. 1 D is to partial enlarged drawing;
Fig. 3 is the utility model piston cap structural representation, wherein Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) be respectively the A-A of front view, front view of piston cap to the B of end view, end view to enlarged drawing.
Among the figure: 1, hydraulic chamber; 2, hydraulic packing circle; 3, dust ring; 4, piston; 5, piston cap.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
As shown in Figure 1, the dust cleaning apparatus of this hydraulic piston comprises hydraulic chamber 1 and is arranged on the hydraulic oil of hydraulic chamber 1 inner chamber and carries out straight-line piston 4 along hydraulic chamber 1 inwall, be provided with piston cap 5 at described hydraulic chamber 1 and the port that piston 4 joins, piston cap 5 is socketed on the piston 4 and is provided with the seal groove of placing hydraulic packing circle 2 on this piston cap 5, wherein: also be provided with the cannelure that holds dust ring on described piston cap 5, dust ring places this groove and piston 4 sealings to join.
The cannelure of placing dust ring 3 in the utility model on the piston cap 5 is arranged in piston cap 5 lower port along on the sidewall, and on these dust ring 3 cannelures and the piston cap 5 outside the seal groove of set hydraulic packing circle 2.This dust ring 3 can be blocked in the foreign material around piston 4 is in doing the linear running process up and down the outside of piston 4 and piston cap 5, sees shown in Figure 2.
As shown in Figure 3, be the structural representation of piston cap, wherein Fig. 3 (a), Fig. 3 (c) be respectively the A-A of front view, front view of piston cap 5 to the B of end view, end view to enlarged drawing.Further, the cannelure groove depth with dust ring 3 on the piston cap 5 is designed to its groove depth greater than the seal groove of adjacent hydraulic packing circle 2.Shown in Fig. 3 (b); this structure can prevent dust ring in cannelure inclination or reverse; prop up the stability of overfill protection dust ring in groove simultaneously; prevent that effectively pollutant from passing through the dust ring back side and invading so that dedusting; and guaranteeing to remove konisphere by elasticity closely contacts with the surface of piston; finally reach the dust removing effects to piston face when piston moves, the protection piston face prevents the leakage of oil that hydraulic seal is damaged and causes.
And dust ring 3 of the present utility model takes the abrasion resistant polyurethane elastomeric material to make.This elastomeric material can make the sealing property of dust ring 3 be improved, and further reaches the dustproof effect of piston.And finally reaching dust removing effects to piston face, the protection piston face prevents that hydraulic seal is damaged and the oil leakage phenomenon that causes takes place.
In conjunction with the foregoing description this device bare bones has been done statement, but the utility model device is not limited to above-mentioned embodiment.Above-mentioned embodiment only is schematic scheme, rather than circumscribed.Those skilled in the art not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of these type of forms under the enlightenment of using new structure, these all belong within the protection range of the present utility model.
Claims (4)
1. the dust cleaning apparatus of a hydraulic piston, comprise hydraulic chamber (1), and be arranged on the hydraulic oil of hydraulic chamber (1) inner chamber and carry out straight-line piston (4) along hydraulic chamber (1) inwall, the port that joins at described hydraulic chamber (1) and piston (4) is provided with piston cap (5), piston cap (5) is socketed on piston (4) and goes up and be provided with the seal groove of placing hydraulic packing circle (2) on this piston cap (5), it is characterized in that: also be provided with the cannelure that holds dust ring (3) on described piston cap (5), dust ring (3) places this groove and piston (4) sealing to join.
2. the dust cleaning apparatus of a kind of hydraulic piston according to claim 1, it is characterized in that: the cannelure that described piston cap (5) go up to be placed dust ring (3) is arranged in piston cap (5) lower port along on the sidewall, and this dust ring (3) cannelure is gone up the seal groove outside of set hydraulic packing circle (2) in piston cap (5).
3. the dust cleaning apparatus of a kind of hydraulic piston according to claim 1 is characterized in that: described piston cap (5) goes up the groove depth of the cannelure groove depth of dust ring (3) greater than the seal groove of adjacent hydraulic packing circle (2).
4. the dust cleaning apparatus of a kind of hydraulic piston according to claim 1, it is characterized in that: described dust ring (3) is taked the polyurethane rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020266047XU CN201773719U (en) | 2010-07-21 | 2010-07-21 | Dust removing device for hydraulic piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020266047XU CN201773719U (en) | 2010-07-21 | 2010-07-21 | Dust removing device for hydraulic piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773719U true CN201773719U (en) | 2011-03-23 |
Family
ID=43753562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020266047XU Expired - Lifetime CN201773719U (en) | 2010-07-21 | 2010-07-21 | Dust removing device for hydraulic piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201773719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852900A (en) * | 2012-09-11 | 2013-01-02 | 苏州同大机械有限公司 | Leakage oil collecting device of oil cylinder for plastic product forming machinery |
-
2010
- 2010-07-21 CN CN201020266047XU patent/CN201773719U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852900A (en) * | 2012-09-11 | 2013-01-02 | 苏州同大机械有限公司 | Leakage oil collecting device of oil cylinder for plastic product forming machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Xidian high voltage switch actuating mechanism Co., Ltd. Assignor: China XD Electronic Corporation Contract record no.: 2011610000062 Denomination of utility model: Dust removing device for hydraulic piston Granted publication date: 20110323 License type: Exclusive License Record date: 20110629 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |