CN203421172U - Novel dynamic sealing structure - Google Patents
Novel dynamic sealing structure Download PDFInfo
- Publication number
- CN203421172U CN203421172U CN201320407271.XU CN201320407271U CN203421172U CN 203421172 U CN203421172 U CN 203421172U CN 201320407271 U CN201320407271 U CN 201320407271U CN 203421172 U CN203421172 U CN 203421172U
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- groove
- sealing
- annular
- movement parts
- ring
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Abstract
The utility model discloses a novel dynamic sealing structure which comprises a first motion part, a second motion part and a sealing part. An installation hole allowing the second motion part to be installed is formed in the first motion part, an annular sealing groove for allowing the sealing part to be installed is formed in the hole wall of the installation hole, an annular pressing ring groove which is larger than the annular sealing groove in width is formed in the axial direction of the hole wall of the installation hole, one end of the annular pressing ring groove is communicated with the annular sealing groove, a groove opening is formed in the position, arranged on the end face of the first motion part, of the other end of the annular pressing ring groove, a pressing ring is arranged, and the pressing ring is arranged on the annular pressing ring groove. The splitting type annular sealing structure is adopted to replace an existing integrated annular sealing structure, the problem existing in the machining and measuring of a traditional annular sealing groove can be better solved, and the structure has the advantages that the machining size is easy to control, installation is easy and convenient, and the sealing effect is better.
Description
Technical field
The utility model relates to a kind of movable sealing structure that has relative movement, is specifically related to a kind of all hydraulic and pneumatic Novel movable sealing configuration with circular groove sealing of being particularly useful for.
Background technique
As shown in Figure 1 to Figure 3, for existing the first movement parts 1(that has relative movement as oil hydraulic pump pressure regulation valve housing) and the second movement parts 2(as the rotating shaft of oil hydraulic pump pressure regulator valve), its movable sealing structure is at the interior mounting hole 11 arranging for the second movement parts 2 installations of the first movement parts 1, and on the hole wall of mounting hole, is provided with the annular seal groove 12 of installing for Sealing 3.This movable sealing structure is than being easier to solve gas-liquid sealing problem in theory.But, for this internal bore groove of annular seal groove 12, normally adopt deep-hole boring cutter to process, but will accurately process and measure its size, Shortcomings part: for from aperture the seal groove close to can measure by certain frock measurer, but there is certain error; And for the seal groove away from from aperture, adopt current processing and detection means more difficult.Be illustrated in figure 2 the pressure regulator obturator figure of existing pressure shut-off valve, movable sealing structure to this position, traditional design and manufacturing process rely on lathe scale to guarantee its dimensional accuracy (the groove width B of annular seal groove and groove external diameter (groove depth) A) and roughness C conventionally, yet, in actual course of working, usually because boring cutter moves, the reason such as scale mistake and tool setting error, cause the deviation of groove processing dimension; And existing measurer also cannot detect aperture ring shaped slot.
In addition, existing movable sealing structure also brings difficulty to the installation of Sealing: because the seal groove of existing movable sealing structure is designed to internal bore groove form, and for high-pressure situations, generally all can install in the inner side of Sealing 3 back-up ring 4 additional to meet the needs of high pressure.For convenient, install, before assembling, need Sealing and back-up ring to curve by force special-shaped shape 34 as shown in Figure 3, easily Sealing and back-up ring are damaged.
In sum, the movable sealing structure of existing internal bore groove form, because deviation and the roughness of processing dimension is difficult to ensure card, and while installing, easily Sealing (and back-up ring) is damaged again, make great majority adopt the product of this movable sealing structure easily at sealing position, to occur Seepage when test or use.
Model utility content
The purpose of this utility model is to provide a kind of Novel movable sealing configuration that improves structure, to solve the deficiencies in the prior art part.
For achieving the above object, the utility model adopts following technological scheme:
A sealing configuration, comprises the first movement parts, the second movement parts and Sealing, and described the first movement parts is provided with the mounting hole of installing for the second movement parts, and the hole wall of described mounting hole is provided with the annular seal groove of installing for Sealing; On the hole wall of described mounting hole, axially form the annular compression ring groove that a groove width is greater than annular seal groove, described annular compression ring groove one end is communicated with described annular seal groove, and its other end forms notch on the end face of the first movement parts; And have a pressure ring, be arranged on described annular compression ring groove.
Further, the utility model also comprises at least one packing ring, is arranged in described annular compression ring groove.
Further, the utility model also comprises a back-up ring, is arranged in the annular seal groove of Sealing inner side.
As a kind of selection, described the first movement parts and the second movement parts are hydraulic element.
The utility model adopts split type ring packing structure to replace existing integral type ring packing structure, can solve better traditional endless seal groove in processing and the problem existing in measuring, there is the advantages such as easily control of processing dimension, simple installation, sealing effect is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing movable sealing structure.
Fig. 2 is the sectional structure schematic diagram of the first movement parts of existing movable sealing structure.
Fig. 3 is the structural representation before existing Sealing (or back-up ring) is installed.
Fig. 4 is structural representation of the present utility model.
Fig. 5 is the sectional structure schematic diagram of the first movement parts of the present utility model.
Fig. 6 is the STRUCTURE DECOMPOSITION figure of pressure ring of the present utility model, Sealing, back-up ring and packing ring and the first movement parts.
In figure:
The 1-the first movement parts; 11-mounting hole; 12-annular seal groove; 13-annular compression ring groove; The 2-the second movement parts; 3-Sealing; 4-back-up ring; 5-pressure ring; 6-packing ring.
Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail.
Embodiment
As shown in Figures 4 to 6, a kind of Novel movable sealing configuration described in the utility model, is mainly comprised of the first movement parts 1, the second movement parts 2, Sealing 3, back-up ring 4, pressure ring 5 and packing ring 6.Wherein:
The housing of the pressure regulator that the first described movement parts 1 is pressure shut-off valve, the rotating shaft of the pressure regulator that the second movement parts is pressure shut-off valve.The first movement parts 1 offers the mounting hole 11 of installing for the second movement parts 2 in it, and circular groove on mounting hole 11 hole walls is divided into annular seal groove 12 and annular compression ring groove 13, and annular seal groove 12 is formed on the darker hole wall of mounting hole; And annular compression ring groove 13 is along on the hole wall of the axial formation mounting hole of mounting hole 11, one end of annular compression ring groove 13 is communicated with annular seal groove 12, and its other end forms notch on the end face of the first movement parts 1.Described packing ring 6, back-up ring 4 and Sealing 3 are sequentially placed in annular seal groove 12, and 5 of pressure rings are placed in annular compression ring groove 13.
As shown in Figure 5 and Figure 6, because the circular groove on mounting hole 11 adopts open type design, the outside dimension A of annular seal groove and groove width B be processing and measurement easily, and the D outer diameter of annular compression ring groove and degree of depth F are also easy to processing and control, and dimensional accuracy and roughness C easily guarantee.In addition, packing ring 6 and pressure ring 5 are processed in addition, and thickness and outside dimension precision easily guarantee.Also have, back-up ring and Sealing are installed need not bend distortion by force, installs easily, can not damage back-up ring and Sealing.Packing ring and pressure ring are all installed by step type, and after installation, recruitment is contained between workpiece and pressure ring and presses and make pressure ring fixing.The utility model is easily processed each size, precision easily guarantees, roughness is also easily measured and controls, thereby has improved the up-to-standard rate of product, has also improved the quality of product, in the repeatedly adjusting and use of equipment, does not find the phenomenon of leakage of oil.
Claims (4)
1. a Novel movable sealing configuration, comprise the first movement parts, the second movement parts and Sealing, described the first movement parts is provided with the mounting hole of installing for the second movement parts, the hole wall of described mounting hole is provided with the annular seal groove of installing for Sealing, it is characterized in that, on the hole wall of described mounting hole, axially form the annular compression ring groove that a groove width is greater than annular seal groove, described annular compression ring groove one end is communicated with described annular seal groove, and its other end forms notch on the end face of the first movement parts; And have a pressure ring, be arranged on described annular compression ring groove.
2. a kind of Novel movable sealing configuration according to claim 1, is characterized in that, also comprises at least one packing ring, is arranged in described annular compression ring groove.
3. a kind of Novel movable sealing configuration according to claim 1 and 2, is characterized in that, also comprises a back-up ring, is arranged in the annular seal groove of Sealing inner side.
4. a kind of Novel movable sealing configuration according to claim 1, is characterized in that, described the first movement parts and the second movement parts are hydraulic element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320407271.XU CN203421172U (en) | 2013-07-09 | 2013-07-09 | Novel dynamic sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320407271.XU CN203421172U (en) | 2013-07-09 | 2013-07-09 | Novel dynamic sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421172U true CN203421172U (en) | 2014-02-05 |
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ID=50020271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320407271.XU Expired - Fee Related CN203421172U (en) | 2013-07-09 | 2013-07-09 | Novel dynamic sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831491A (en) * | 2014-02-27 | 2014-06-04 | 西安工业大学 | Electrolytic machining sealing device of air inlet of whole closed turbine disc |
-
2013
- 2013-07-09 CN CN201320407271.XU patent/CN203421172U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103831491A (en) * | 2014-02-27 | 2014-06-04 | 西安工业大学 | Electrolytic machining sealing device of air inlet of whole closed turbine disc |
| CN103831491B (en) * | 2014-02-27 | 2016-03-09 | 西安工业大学 | The Electrolyzed Processing sealing device of closed type integrated turbine disk air inlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20170709 |