CN205075002U - Wear -resisting retaining ring mounting tool - Google Patents
Wear -resisting retaining ring mounting tool Download PDFInfo
- Publication number
- CN205075002U CN205075002U CN201520651007.XU CN201520651007U CN205075002U CN 205075002 U CN205075002 U CN 205075002U CN 201520651007 U CN201520651007 U CN 201520651007U CN 205075002 U CN205075002 U CN 205075002U
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- China
- Prior art keywords
- block
- wear
- ring
- jacking block
- conical surface
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a wear -resisting retaining ring mounting tool, including mandrel, kicking block, spacing elasticity ring, top jack panel and a plurality of supporting shoe, wherein: it has an axially extended guide way in edge to correspond processing at the middle part of mandrel with every supporting shoe, and the left side processing of guide way has an annular spacing step, and the right -hand member of spacing step is a conical surface, the kicking block cover is established attentively epaxial, and the outer wall of the left end of kicking block is a conical surface, the lower extreme of supporting shoe be with guide way complex guide block, the left and right sides that the lower surface of supporting shoe is located the guide block is the conical surface with the cone combined with of the conical surface of spacing step, kicking block respectively, the middle part processing of supporting shoe upper surface has a fixed slot, and the diameter of the outer wall of the left and right sides of fixed slot reduces to form a plurality of support steps gradually, and spacing elastic ring sleeve is in the ring channel. The utility model provides a do not damage wear -resisting retaining ring in mounting tool labour saving and time saving, the installation, do not carry out evenly expansion operation with the wear -resisting retaining ring to different diameters.
Description
Technical field
The utility model relates to technical field of mechanical equipment, in particular to the wear-resisting back-up ring erecting tools of one.
Background technology
The combination sealing mode of wear-resisting back-up ring and O shape rubber ring is applied on the kinematic pair of hydraulic system, usually as oil cylinder piston, kinematic axis etc.Wherein wear-resisting back-up ring adopts ptfe composite, has high rigidity and high-wearing feature, and prevents O shape circle to be extruded under elevated pressure conditions, and O shape circle provides enough sealabilities, to the wearing and tearing redeeming of back-up ring.Need in application to be installed in seal groove after expanding for wear-resisting back-up ring elder generation, then natural shrinking, thus reach sealing effectiveness.But the hardness of wear-resisting back-up ring is very large, and expanding installation is very difficult.The common installation method of sealing group first installs O shape rubber ring, then with the wear-resisting back-up ring of oil heating, after wear-resisting back-up ring deliquescing in the expanding seal groove be installed on axle.Owing to there is no special hole enlargement tool, time expanding, conventional method is mainly by blunt instruments such as several screwdrivers, by force wear-resisting back-up ring is pried in groove, expanding mode like this operates suitable effort, expanding effect is uneven, and very easily formed in the place contacted with blunt to extrude or scratch and destroy, thus combination sealing is caused to lose efficacy.
Utility model content
Technical problem to be solved in the utility model is, provides in a kind of time saving and energy saving, installation process and does not damage wear-resisting back-up ring, to carry out the erecting tools of uniform expansion operation to the wear-resisting back-up ring of different-diameter.
Therefore, the technical solution of the utility model is as follows:
A kind of wear-resisting back-up ring erecting tools, comprises axle, jacking block, spacing elastic ring, holds out against nut and multiple back-up block, wherein:
Correspondingly with each described back-up block at the middle part of described axle be processed with a gathering sill extended vertically, multiple described gathering sill is uniformly distributed circumferentially, the left side of described gathering sill is processed with the limited step of an annular, and the right-hand member of described limited step is a conical surface;
Described jacking block to be set in described axle and to be positioned at the right side of described gathering sill, and the outer wall of the left end of described jacking block is a conical surface, described in hold out against nut by screw thread be arranged on described axle right-hand member, for promoting described jacking block to left movement when screwing in;
The lower end of described back-up block is the guide pad coordinated with described gathering sill, and the left and right sides that the lower surface of described back-up block is positioned at described guide pad is respectively the inner conical surface with the cone match of the conical surface of described limited step, described jacking block;
The middle part of described back-up block upper surface is processed with a holddown groove, the outer diameter of the left and right sides of described holddown groove reduces to form multiple support level gradually, multiple described back-up block is arranged on bonded to each other between back-up block adjacent after in corresponding described gathering sill and described multiple described holddown groove and is spliced between a complete cannelure and described support level and is spliced into multiple annular brace step, and described spacing elastic ring is enclosed within described cannelure.
Further, in described axle, the right side of described gathering sill is provided with a limited step, and the right-hand member of the inwall of described jacking block is processed with the flange of an annular, and described limited step coordinates to limit the distance that described jacking block is moved to the left with described annular flange flange.In this technical scheme, utilize limited step jacking block can be avoided to be moved to the left too much with coordinating of annular flange flange, ensure the reliability of whole tool work better.
Further, in described axle, the right side of described limited step is processed with outer six sides of preset length vertically, the inwall of described annular flange flange is six sides in coordinating with described outer six sides, the described left end holding out against nut inner wall is processed with an annular groove, and the internal diameter of described annular groove is greater than the maximum outside diameter of described outer six sides.In this technical scheme, adopt six sides to coordinate between jacking block with axle and can prevent jacking block from rotating, jacking block only moves vertically under the promotion holding out against nut, ensure that jacking block expands outwardly by means of only promoting back-up block in axially-movable, avoid relatively rotating between jacking block and back-up block and produce extra friction, ensure the expansion effect of whole instrument to wear-resisting back-up ring better.
Described spacing elastic ring is the spring of an annular.
The quantity of described back-up block can be eight, can ensure that wear-resisting back-up ring is expanded more uniformly.
In the utility model, utilize screw thread to carry out axis and hold out against very laborsaving; Wear-resisting back-up ring can uniform expansion, can not damage wear-resisting back-up ring; Dilation procedure can be carried out to the wear-resisting back-up ring of different-diameter.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wear-resisting back-up ring erecting tools original state according to the utility model embodiment
Fig. 2 is the structural representation that in Fig. 1, wear-resisting back-up ring erecting tools holds out against state.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As depicted in figs. 1 and 2, according to the wear-resisting back-up ring erecting tools of embodiment of the present utility model, comprise axle 1, jacking block 4, spacing elastic ring, hold out against nut 5 and multiple back-up block 2, wherein:
Correspondingly with each described back-up block 2 at the middle part of described axle 1 be processed with a gathering sill extended vertically 11, multiple described gathering sill 11 is uniformly distributed circumferentially, the left side of described gathering sill 11 is processed with the limited step 12 of an annular, and the right-hand member of described limited step 12 is a conical surface;
Described jacking block 4 to be set in described axle 1 and to be positioned at the right side of described gathering sill 11, the outer wall of the left end of described jacking block 4 is a conical surface, described in hold out against nut 5 by screw thread be arranged on described axle 1 right-hand member, for screw in time promote described jacking block 4 to left movement;
The lower end of described back-up block 2 is the guide pad 21 coordinated with described gathering sill 11, and the left and right sides that the lower surface of described back-up block 2 is positioned at described guide pad 21 is respectively the inner conical surface 22 with the conical surface of described limited step 12, the cone match of described jacking block 4;
The middle part of described back-up block 2 upper surface is processed with a holddown groove 23, the outer diameter of the left and right sides of described holddown groove 23 reduces to form multiple support level 24 gradually, multiple described back-up block 2 is arranged on bonded to each other between back-up block 2 adjacent after in corresponding described gathering sill 11 and described multiple described holddown groove 23 and is spliced between a complete cannelure and described support level 24 and is spliced into multiple annular brace step, and described spacing elastic ring is enclosed within described cannelure.
Further, in described axle 1, the right side of described gathering sill 11 is provided with a limited step 12, the right-hand member of the inwall of described jacking block 4 is processed with the flange 41 of an annular, and described limited step 12 coordinates to limit the distance that described jacking block 4 is moved to the left with described annular flange flange 41.In this technical scheme, utilize limited step 12 jacking block 4 can be avoided to be moved to the left too much with coordinating of annular flange flange 41, ensure the reliability of whole tool work better.
Further, in described axle 1, the right side of described limited step 12 is processed with outer six sides 13 of preset length vertically, the inwall of described annular flange flange 41 is for coordinating interior six sides with described outer six sides 13, the described left end holding out against nut 5 inwall is processed with an annular groove 51, and the internal diameter of described annular groove 51 is greater than the maximum outside diameter of described outer six sides 13.In this technical scheme, adopt six sides to coordinate between jacking block 4 with axle 1 and can prevent jacking block 4 from rotating, jacking block 4 only moves vertically under the promotion holding out against nut 5, ensure that jacking block 4 expands outwardly by means of only promoting back-up block 2 in axially-movable, avoid relatively rotating between jacking block 4 and back-up block 2 producing extra friction, ensure the expansion effect of whole instrument to wear-resisting back-up ring better.
Described spacing elastic ring is the spring 3 of an annular, and employing spring 3 is simple, cost is low.
The quantity of described back-up block 2 can be eight, can ensure that wear-resisting back-up ring is expanded more uniformly.
Wherein, jacking block 4 center can be hexagonal hole, and the part that axle 1 coordinates with jacking block 4 is outer six sides, can ensure that holding out against nut 5 promotes to ensure when jacking block 4 moves that jacking block 4 only moves vertically.Will need expansion wear-resisting back-up ring 6 be arranged on the support level 24 of the 2-in-1 suitable size of back-up block, jacking block 4 to during left movement by cone match promote back-up block 2 radially move thus realize wear-resisting hold power 6 uniform expansion.
In the utility model, utilize support levels 24 different on different back-up blocks 2 can carry out dilation procedure to the wear-resisting back-up ring of different-diameter, after axle installs with wear-resisting back-up ring, wear-resisting back-up ring is contained in the support level 24 of corresponding diameter on back-up block 2, the inner conical surface 22 of back-up block 2 lower surface both sides is ridden on the conical surface of limited step 12 and jacking block 4, with spring 3, multiple back-up block 2 is gathered, then turn holds out against nut 5 and is promoted on the left of axle 1 by jacking block 4, effect is gathered due to spring 3 pairs of back-up blocks 2, back-up block 2 can along the inner conical surface 22 of both sides to radial dilatation, can support large by wear-resisting back-up ring uniform expansion like this, to load in the groove on kinematic axis.In the utility model, utilize screw thread to carry out axis and hold out against very laborsaving; Wear-resisting back-up ring can uniform expansion, can not damage wear-resisting back-up ring; Dilation procedure can be carried out to the wear-resisting back-up ring of different-diameter.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but this embodiment is all included within scope of the present utility model.
Claims (5)
1. a wear-resisting back-up ring erecting tools, is characterized in that, comprises axle (1), jacking block (4), spacing elastic ring, holds out against nut (5) and multiple back-up block (2), wherein:
Correspondingly with each described back-up block (2) at the middle part of described axle (1) be processed with a gathering sill extended vertically (11), multiple described gathering sill (11) is uniformly distributed circumferentially, the left side of described gathering sill (11) is processed with the limited step (12) of an annular, and the right-hand member of described limited step (12) is a conical surface;
The described axle (1) that is set in described jacking block (4) goes up and the right side being positioned at described gathering sill (11), the outer wall of the left end of described jacking block (4) is a conical surface, described in hold out against nut (5) by screw thread be arranged on described axle (1) right-hand member, for screw in time promote described jacking block (4) to left movement;
The lower end of described back-up block (2) is the guide pad (21) coordinated with described gathering sill (11), and the left and right sides that the lower surface of described back-up block (2) is positioned at described guide pad (21) is respectively the inner conical surface (22) with the cone match of the conical surface of described limited step (12), described jacking block (4);
The middle part of described back-up block (2) upper surface is processed with a holddown groove (23), the outer diameter of the left and right sides of described holddown groove (23) reduces to form multiple support level (24) gradually, multiple described back-up block (2) is arranged on bonded to each other between back-up block (2) adjacent after in corresponding described gathering sill (11) and described multiple described holddown groove (23) and is spliced between a complete cannelure and described support level (24) and is spliced into multiple annular brace step, and described spacing elastic ring is enclosed within described cannelure.
2. wear-resisting back-up ring erecting tools according to claim 1, it is characterized in that, right side that is upper in described axle (1), described gathering sill (11) is provided with a limited step (12), the right-hand member of the inwall of described jacking block (4) is processed with the flange (41) of an annular, and described limited step (12) coordinates to limit the distance that described jacking block (4) is moved to the left with described annular flange flange (41).
3. wear-resisting back-up ring erecting tools according to claim 2, it is characterized in that, right side that is upper in described axle (1), described limited step (12) is processed with outer six sides (13) of preset length vertically, the inwall of described annular flange flange (41) is six sides in coordinating with described outer six sides (13), the described left end holding out against nut (5) inwall is processed with an annular groove (51), and the internal diameter of described annular groove (51) is greater than the maximum outside diameter of described outer six sides (13).
4. wear-resisting back-up ring erecting tools according to any one of claim 1 to 3, is characterized in that, described spacing elastic ring is the spring (3) of an annular.
5. wear-resisting back-up ring erecting tools according to any one of claim 1 to 3, is characterized in that, the quantity of described back-up block (2) is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651007.XU CN205075002U (en) | 2015-08-26 | 2015-08-26 | Wear -resisting retaining ring mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520651007.XU CN205075002U (en) | 2015-08-26 | 2015-08-26 | Wear -resisting retaining ring mounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205075002U true CN205075002U (en) | 2016-03-09 |
Family
ID=55427439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520651007.XU Withdrawn - After Issue CN205075002U (en) | 2015-08-26 | 2015-08-26 | Wear -resisting retaining ring mounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205075002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033940A (en) * | 2015-08-26 | 2015-11-11 | 中国石油集团渤海钻探工程有限公司 | Mounting tool of wear-resisting check ring |
-
2015
- 2015-08-26 CN CN201520651007.XU patent/CN205075002U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033940A (en) * | 2015-08-26 | 2015-11-11 | 中国石油集团渤海钻探工程有限公司 | Mounting tool of wear-resisting check ring |
| CN105033940B (en) * | 2015-08-26 | 2017-03-22 | 中国石油集团渤海钻探工程有限公司 | Mounting tool of wear-resisting check ring |
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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 |
Granted publication date: 20160309 Effective date of abandoning: 20170322 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |