CN202170904U - Sleeve spacing retainer ring device of telescopic sleeve hydraulic cylinder - Google Patents
Sleeve spacing retainer ring device of telescopic sleeve hydraulic cylinder Download PDFInfo
- Publication number
- CN202170904U CN202170904U CN2011202751399U CN201120275139U CN202170904U CN 202170904 U CN202170904 U CN 202170904U CN 2011202751399 U CN2011202751399 U CN 2011202751399U CN 201120275139 U CN201120275139 U CN 201120275139U CN 202170904 U CN202170904 U CN 202170904U
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- China
- Prior art keywords
- spacing
- ring
- retainer ring
- limited
- sleeve
- Prior art date
- 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.)
- Expired - Fee Related
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- 125000006850 spacer group Chemical group 0.000 abstract 4
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a sleeve spacing retainer ring device of a telescopic sleeve hydraulic cylinder, which comprises a spacer. The spacer is provided with a spaced member which lifts in the spacer. An inner wall of the spacer is provided with an annular keyway. A spacing retainer ring is inserted into the annular keyway. The spaced member is also provided with an annular keyway in which a spaced retainer ring that is matched with the spacing retainer ring is inserted. The spacing retainer ring is provided with a spacing surface. The spacing retainer ring is provided with a spaced surface which is matched with the spacing surface. The spacing surface is an inner conical surface, and the spaced surface is an outer conical surface. Because the conical surface is adopted as the spacing surface, the contact surface is enlarged at a state that the dimension is unchanged. Fatigue failure of the contact surface does not occur easily. The spacing retainer ring does not easily bend to deformation or break. A component force which is vertical to the direction of the sleeve causes firmer combination between the spacing retainer ring and no easy separation. The sleeve spacing retainer ring device of a telescopic sleeve hydraulic cylinder has the following advantages: low failure rate, high safety and high reliability.
Description
Technical field
The utility model relates to a kind of sleeve run distance caging device of telscoping hydaulic cylinder.
Background technique
As shown in Figure 1 is a kind of telscoping hydaulic cylinder commonly used at present; Comprise the plunger 1, sleeve 2 and the cylinder barrel 3 that are sleeved on together; Plunger 1 and sleeve 2 lifting successively, plunger 1 and sleeve 2 can be spacing and stop lifting by next stage sleeve 2 or cylinder barrel 3 after giving rise to predetermined stroke, and wherein plunger 1 is as just limited; Sleeve 2 both as bounding means also as limited, cylinder barrel 3 is as just bounding means.The spacing of bounding means and limited is to be realized by the limit stoper that is separately positioned between the two.
The limit stoper that adopts for the existing technology telscoping hydaulic cylinder as shown in Figures 2 and 3; This limit stoper comprises the original limited step 11 ' that is arranged on the bounding means inwall; Be arranged on the original spacing shaft shoulder 21 ' on limited, said original limited step 11 ' is provided with confined planes, and said original spacing shaft shoulder 21 ' is provided with limited; Said confined planes and said limited are planar annular perpendicular to hydraulic cylinder axis, and its shortcoming is:
1. surface of contact is little, and the load that stressed back surface of contact bears is big, is easy to generate local fatigue and loses efficacy; Therefore distortion even obscission appear in limit stoper easily; Gently then cause scuffing of cylinder bore, influence the working life of equipment, delay production; Heavy then cause spacing inoperatively, the serious accident that the cylinder phenomenon causes car crash appears pulling out.
2. when limited generation is crooked, can not make limited bottom obtain restriction and rectification.
3. be about to when spacing, shutoff hydraulic oil easily between the limited step and the spacing shaft shoulder makes the oil hydraulic cylinder lifting not in place.
The model utility content
The utility model technical problem to be solved provides a kind of rational in infrastructure, telscoping hydaulic cylinder sleeve limiting block coil apparatus that rate of fault is low, safe and reliable.
For solving the problems of the technologies described above; The technological scheme of the utility model is: telscoping hydaulic cylinder sleeve limiting block coil apparatus, comprise bounding means, and be equipped with limited that in said bounding means, goes up and down on the said bounding means; Said bounding means inwall is provided with annular keyway; Said annular keyway is embedded in spacing back-up ring is installed, and said limited is provided with annular keyway, and said annular keyway is embedded in the limited back-up ring that matches with said spacing back-up ring is installed; Said spacing back-up ring is provided with confined planes, and said limited back-up ring is provided with limited that cooperates with said confined planes, and said confined planes is an internal conical surface, and said limited is outer conical surface.
As optimized technical scheme, the drift angle angle of said internal conical surface and said outer conical surface is 120 °～160 °.
As optimized technical scheme, the drift angle angle of said internal conical surface and said outer conical surface is 150 °.
Owing to adopted technique scheme; Telscoping hydaulic cylinder sleeve limiting block coil apparatus comprises bounding means, is equipped with limited that in said bounding means, goes up and down on the said bounding means; Said bounding means inwall is provided with annular keyway; Said annular keyway is embedded in spacing back-up ring is installed, and said limited is provided with annular keyway, and said annular keyway is embedded in the limited back-up ring that matches with said spacing back-up ring is installed; Said spacing back-up ring is provided with confined planes, and said limited back-up ring is provided with limited that cooperates with said confined planes, and said confined planes is an internal conical surface, and said limited is outer conical surface.Because said confined planes and said limited employing conical surface; Under the situation of size constancy; Area of contact is able to increase, and the surface of contact indefatigability was lost efficacy, and two conical surfaces in the course of the work can be along with break-in the cooperation situation of self-improvement surface of contact; Spacing back-up ring and limited back-up ring are difficult for bending deflection, more not frangible; It is more firm to make that perpendicular to the component of sleeve direction said spacing back-up ring and limited back-up ring combine with sleeve lining, when bearing pressure, and not yielding coming off; The utlity model has rate of fault low, safe and reliable advantage.
Description of drawings
Fig. 1 is the structural representation of telscoping hydaulic cylinder in the background technique;
Fig. 2 is the enlarged view of the spacing back-up ring in I place and limited back-up ring among Fig. 1;
Fig. 3 is the enlarged view of the spacing back-up ring in II place and limited back-up ring among Fig. 1;
Fig. 4 is the enlarged view of spacing back-up ring and limited back-up ring between plunger and the sleeve among the utility model embodiment;
Fig. 5 is between the sleeve and sleeve among the utility model embodiment, the enlarged view of spacing back-up ring and limited back-up ring between sleeve and the cylinder barrel;
Fig. 6 is the structural representation of spacing back-up ring among the utility model embodiment;
Fig. 7 is the sectional view of Fig. 6;
Fig. 8 is the structural representation of limited back-up ring among the utility model embodiment;
Fig. 9 is the sectional view of Fig. 8.
Among the figure: the 1-plunger; The 2-sleeve; The 3-cylinder barrel; 11 '-original limited step; The spacing back-up ring of 12-; 21 '-original spacing shaft shoulder; The limited back-up ring of 22-.
Embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model.In the detailed description below, some example embodiment of the utility model has only been described through the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under the situation of spirit that does not depart from the utility model and scope, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used to limit the protection domain of claim.
Like Fig. 4 and shown in Figure 5; Telscoping hydaulic cylinder sleeve limiting block coil apparatus comprises bounding means, is equipped with limited that in said bounding means, goes up and down on the said bounding means; Said bounding means inwall is provided with annular keyway; Said annular keyway is embedded in spacing back-up ring 12 is installed, and said limited is provided with annular keyway, and said annular keyway is embedded in the limited back-up ring 22 that matches with said spacing back-up ring 12 is installed; Said spacing back-up ring 12 is provided with confined planes, and said limited back-up ring 22 is provided with limited that cooperates with said confined planes, and said confined planes is an internal conical surface, and said limited is outer conical surface; The drift angle angle of said internal conical surface and said outer conical surface is 120 °～160 °, and in the present embodiment, the drift angle angle of said internal conical surface and said outer conical surface is 150 °.Like Fig. 6 and shown in Figure 7, said spacing back-up ring 12 is the annular retaining ring of opening; Like Fig. 8 and shown in Figure 9, said limited back-up ring 22 is the annular retaining ring of opening.
The advantage of present embodiment is:
1. the confined planes area of contact is able to increase; The load that the unit surface of contact bears after stressed is less; The reliability of spacing back-up ring and limited back-up ring strengthens greatly, and the surface of contact indefatigability was lost efficacy, and two conical surfaces in the course of the work can be along with break-in the cooperation situation of self-improvement surface of contact; Spacing back-up ring and limited back-up ring are difficult for bending deflection, more not frangible;
2. when limited generation was crooked, the taper confined planes made limited bottom obtain restriction and corrects.
3. be about to when spacing, the slit between spacing back-up ring and the limited back-up ring is identical with oil pocket, and the oil hydraulic cylinder lifting puts in place gently.
The split type limit structure that this and said plunger 1, sleeve 2 and cylinder barrel 3 are separated promptly adopts the mode of spacing back-up ring 12 and limited back-up ring 22, when making plunger 1, sleeve 2 and cylinder barrel 3; Need on plunger 1, sleeve 2 and cylinder barrel 3, not process and be used for spacing staircase structural model; Can adopt the thin material of wall thickness, higher to the utilization ratio of material, and split type spacing back-up ring 12 and limited back-up ring 22; Can adopt than the harder material of weldless tube of making plunger 1, sleeve 2 and cylinder barrel 3; Can obtain higher intensity through spacing back-up ring after the heat treatment 12 and limited back-up ring 22, the situation that reduces fatigue failure occurs, and increases the service life; High-intensity spacing back-up ring 12 does not come off with limited back-up ring 22 is yielding, has improved Security.
From force analysis; Act on pressure on the surface of contact of spacing back-up ring 12 along the radial component of sleeve 2 radial directions; Spacing back-up ring 12 is pressed to the inwall of outside sleeve 2; It is more firm to make that spacing back-up ring 12 combines with the inwall of outside sleeve 2, and spacing back-up ring 12 is difficult for bending deflection even comes off when bearing pressure; In like manner, it is also more firm that limited back-up ring 22 combines with the outer wall of inboard sleeve 2, when bearing pressure, and also not yielding coming off; Therefore, also reduce rate of fault, improved reliability.
More than show and described the advantage of basic principle, major character and the utility model of the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. telscoping hydaulic cylinder sleeve limiting block coil apparatus; Comprise bounding means; Be equipped with limited that in said bounding means, goes up and down on the said bounding means, said bounding means inwall is provided with annular keyway, and said annular keyway is embedded in spacing back-up ring is installed; Said limited is provided with annular keyway, and said annular keyway is embedded in the limited back-up ring that matches with said spacing back-up ring is installed; Said spacing back-up ring is provided with confined planes, and said limited back-up ring is provided with limited that cooperates with said confined planes, it is characterized in that: said confined planes is an internal conical surface, and said limited is outer conical surface.
2. telscoping hydaulic cylinder sleeve limiting block coil apparatus as claimed in claim 1 is characterized in that: the drift angle angle of said internal conical surface and said outer conical surface is 120 °～160 °.
3. telscoping hydaulic cylinder sleeve limiting block coil apparatus as claimed in claim 2, it is characterized in that: the drift angle angle of said internal conical surface and said outer conical surface is 150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202751399U CN202170904U (en) | 2011-08-01 | 2011-08-01 | Sleeve spacing retainer ring device of telescopic sleeve hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202751399U CN202170904U (en) | 2011-08-01 | 2011-08-01 | Sleeve spacing retainer ring device of telescopic sleeve hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170904U true CN202170904U (en) | 2012-03-21 |
Family
ID=45829100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202751399U Expired - Fee Related CN202170904U (en) | 2011-08-01 | 2011-08-01 | Sleeve spacing retainer ring device of telescopic sleeve hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252005A (en) * | 2011-08-01 | 2011-11-23 | 王万法 | Limiting retainer ring device for sleeve of telescopic-sleeve hydraulic cylinder |
-
2011
- 2011-08-01 CN CN2011202751399U patent/CN202170904U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252005A (en) * | 2011-08-01 | 2011-11-23 | 王万法 | Limiting retainer ring device for sleeve of telescopic-sleeve hydraulic cylinder |
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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: Shandong Wantong Hydraulic Machinery Co., Ltd. Assignor: Wang Wanfa Contract record no.: 2012370000080 Denomination of utility model: Limiting retainer ring device for sleeve of telescopic-sleeve hydraulic cylinder Granted publication date: 20120321 License type: Exclusive License Record date: 20120411 |
|
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG WANTONG HYDRAULIC MACHINERY CO., LTD. Free format text: FORMER OWNER: WANG WANFA Effective date: 20140306 |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140306 Address after: 262313 Shandong province Rizhao City Wulian County High Town Shandong Wantong Hydraulic Machinery Co., Ltd. Patentee after: Shandong Wantong Hydraulic Machinery Co., Ltd. Address before: 262313 Shandong province Rizhao City Wulian County High Town Shandong Wantong Hydraulic Machinery Co., Ltd. Patentee before: Wang Wanfa |
|
| TR01 | Transfer of patent right | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Shandong Wantong Hydraulic Machinery Co., Ltd. Assignor: Wang Wanfa Contract record no.: 2012370000080 Date of cancellation: 20140208 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 262313 Shandong province Rizhao City Wulian County High Town Shandong Wantong hydraulic Limited by Share Ltd Patentee after: SHANDONG WANTONG HYDRAULIC MACHINERY CO., LTD. Address before: 262313 Shandong province Rizhao City Wulian County High Town Shandong Wantong Hydraulic Machinery Co., Ltd. Patentee before: Shandong Wantong Hydraulic Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20140801 |
|
| EXPY | Termination of patent right or utility model |