CN205155149U - Two -way seal structure of bumper jar - Google Patents
Two -way seal structure of bumper jar Download PDFInfo
- Publication number
- CN205155149U CN205155149U CN201520916490.XU CN201520916490U CN205155149U CN 205155149 U CN205155149 U CN 205155149U CN 201520916490 U CN201520916490 U CN 201520916490U CN 205155149 U CN205155149 U CN 205155149U
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Abstract
The utility model discloses a two -way seal structure of bumper jar, include the mandrel and set up the urceolus on the attentive off -axial wall, be provided with the ring channel on the urceolus inner wall, be provided with sealing device in the ring channel, sealing device include retaining ring, Y type sealing ring and support ring, the annular boss gomphosis of Y type sealing ring one end is in the annular groove of support ring, the other end is provided with two seal lips symmetrically, one side of seal lip be provided with the pressurization face, its opposite side is provided with the low pressure seal face. The utility model discloses a when the high -low pressure two way seal was realized to the seal lip of Y type sealing ring, this seal lip still had the function of scraping mud. Therefore, the utility model is not only simple in structure, the cost of manufacture is low, collects the high -low pressure two way seal moreover and scrapes mud function in an organic whole to greatly reduced the cost of manufacture, and be convenient for the assembly and later maintenance.
Description
Technical field
The utility model relates to a kind of Bidirectional seal structure, particularly relates to a kind of bumper jar Bidirectional seal structure.
Background technique
In drillng operation, because complicated geological, technical measures are improper, drilling tool usually occurs and is hampered and occurs bit freezing phenomenon, bumper jar is one of effective tool removing lock of tool drilling.Because bumper jar is in the middle of mud in the course of the work all the time, and the pressure at axle two ends is different, therefore while the different pressures sealing of guarantee axle two ends, also needs to avoid mud to enter in axle.Existing bumper jar sealing configuration is on the outer wall of axle, arrange two groups of sealings, one group is used for sealing low pressure, one group is used for sealing high pressure, also be provided with mud-scraping ring, although this sealing means can reach sealing and scrape the effect of mud, but sealing component is too many simultaneously, die sinking is respectively needed to make, product axial distance require longer, cause cost of production higher, and assembling and later maintenance also inconvenient.
Model utility content
The purpose of this utility model is to provide that a kind of structure is simple, fabricating cost is low, integrate high low pressure two way sealed and scrape the bumper jar sealing configuration of mud function, to overcome the deficiencies in the prior art.
The technical solution of the utility model: a kind of bumper jar Bidirectional seal structure, comprise axle and be arranged on the urceolus on axle outer wall, outer tube inner wall is provided with toroidal cavity, seal arrangement is provided with in circular groove, described seal arrangement comprises Y type seal ring and support ring, the annular boss of Y type seal ring one end is entrenched in the annular groove of support ring, the other end is provided with two sealing lips symmetrically, the side of described sealing lip is provided with high pressure sealing face, and its opposite side is provided with low pressure seal face.
Described high pressure sealing face and the angle of horizontal plane are greater than the angle of low pressure seal face and horizontal plane.
Described low pressure seal face and the angle α of horizontal plane are 20 ~ 30 °, and the angle β of described high pressure sealing face and horizontal plane is 60 ~ 70 °.
The both sides of described seal arrangement are provided with back-up ring, play a protective role to seal arrangement.
Owing to have employed technique scheme, the utility model has the advantage of: while the utility model realizes high low pressure two way sealed by the sealing lip of Y type seal ring, sealing lip also has the function of scraping mud.Therefore, not only structure is simple for the utility model, fabricating cost is low, and integrates sealing and scrape mud function, thus greatly reduces fabricating cost, and is convenient to assembling and later maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the assembling schematic diagram of Y type seal ring and support ring in the utility model;
Fig. 3 is the structural representation of Y type seal ring in the utility model.
Description of reference numerals: 1-axle, 2-urceolus, 3-circular groove, 4-back-up ring, 5-Y type seal ring, 5.1-annular boss, 5.2-sealing lip, 5.3-high pressure sealing face, 5.4-low pressure seal face, 6-support ring, 6.1-annular groove.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment of the present utility model: the structural representation of bumper jar sealing configuration as shown in Figure 1, comprise axle 1 and be arranged on the urceolus 2 on axle 1 outer wall, urceolus 2 inwall is provided with circular groove 3, seal arrangement is provided with in circular groove 3, described seal arrangement comprises Y type seal ring 5 and support ring 6, is also provided with back-up ring 4 at seal arrangement two ends simultaneously; See Fig. 2, in described seal arrangement, the annular boss 5.1 of Y type seal ring 5 one end is entrenched in the annular groove 6.1 of support ring 6, the other end is provided with two sealing lips 5.2 symmetrically, the side of described sealing lip 5.2 is provided with high pressure sealing face 5.3, for sealing the highly pressurised liquid of hyperbaric chamber, its opposite side is provided with low pressure seal face 5.4, for sealing the low pressure liquid of low-pressure cavity; When bumper jar works, axle 1 to-and-fro motion in mud, the lip of now described sealing lip 5.2 also has scrapes mud function.See Fig. 3, described high pressure sealing face 5.3 and the angle of horizontal plane are greater than the angle of low pressure seal face 5.4 and horizontal plane, and namely low pressure seal face 5.4 is 30 ° with the angle α of horizontal plane, and high pressure sealing face 5.3 is 60 ° with the angle β of horizontal plane.
Claims (4)
1. a bumper jar Bidirectional seal structure, comprise axle (1) and be arranged on the urceolus (2) on axle (1) outer wall, it is characterized in that: on urceolus (2) inwall, be provided with circular groove (3), seal arrangement is provided with in circular groove (3), described seal arrangement comprises Y type seal ring (5) and support ring (6), the annular boss (5.1) of Y type seal ring (5) one end is entrenched in the annular groove (6.1) of support ring (6), the other end is provided with two sealing lips (5.2) symmetrically, the side of described sealing lip (5.2) is provided with high pressure sealing face (5.3), its opposite side is provided with low pressure seal face (5.4).
2. bumper jar Bidirectional seal structure according to claim 1, is characterized in that: described high pressure sealing face (5.3) is greater than the angle of low pressure seal face (5.4) and horizontal plane with the angle of horizontal plane.
3. bumper jar Bidirectional seal structure according to claim 2, is characterized in that: described low pressure seal face (5.4) is 20 ~ 30 ° with the angle α of horizontal plane, and described high pressure sealing face (5.3) is 60 ~ 70 ° with the angle β of horizontal plane.
4. bumper jar Bidirectional seal structure according to claim 1, is characterized in that: the both sides of described seal arrangement are provided with back-up ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916490.XU CN205155149U (en) | 2015-11-17 | 2015-11-17 | Two -way seal structure of bumper jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916490.XU CN205155149U (en) | 2015-11-17 | 2015-11-17 | Two -way seal structure of bumper jar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205155149U true CN205155149U (en) | 2016-04-13 |
Family
ID=55690843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520916490.XU Active CN205155149U (en) | 2015-11-17 | 2015-11-17 | Two -way seal structure of bumper jar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205155149U (en) |
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2015
- 2015-11-17 CN CN201520916490.XU patent/CN205155149U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |