CN86201033U - Jointing device for hydraulic cylinder body and external clasp of guide sleeve - Google Patents
Jointing device for hydraulic cylinder body and external clasp of guide sleeve Download PDFInfo
- Publication number
- CN86201033U CN86201033U CN 86201033 CN86201033U CN86201033U CN 86201033 U CN86201033 U CN 86201033U CN 86201033 CN86201033 CN 86201033 CN 86201033 U CN86201033 U CN 86201033U CN 86201033 U CN86201033 U CN 86201033U
- Authority
- CN
- China
- Prior art keywords
- snap ring
- cylinder body
- ring
- guide pin
- pin bushing
- 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.)
- Ceased
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a jointing device for a hydraulic cylinder body and the external clasp of a guide sleeve. The structure theory thereof is that two semi-ring n-shaped external clasps connect the cylinder body with the guide sleeve. The structure comprises the cylinder body, the guide sleeve, the external clasps, a hoop and a retaining ring. The jointing device has the advantages that good manufacturability can raise efficiency by over 5 times, easy disassembling and assembling can raise the efficiency by over 50 times, and the jointing device does not hack sealing elements.
Description
The utility model belongs to general pressurized container.
Oil hydraulic cylinder is the executive component of hydraulic system, is used for finishing straight reciprocating motion or less than 360 rotation motion, is widely used in the multiple machineries such as engineering machinery, handling machinery, mining machinery.
Oil hydraulic cylinder mainly is made up of cylinder body, piston, piston rod, guide pin bushing, cylinder cap etc.Wherein the function of guide pin bushing is guiding and support pistons reciprocating bar.Being connected of guide pin bushing and cylinder cap is an important structure.At present, majority state such as the U.S. and Russia, day, moral etc. adopt to be threaded usually in the world.In the early days of foundation, be subjected to the influence of the Soviet Union, the also employing of China is threaded more.Its shortcoming is that technology capability is relatively poor, and the coaxality of guide pin bushing and cylinder body screw thread and step is difficult for guaranteeing, the assembling difficulty.Therefore, the card key connected (Fig. 2) in China made into afterwards.Use in the past few years proves that this kind connection has following critical defect:
(1), manufacturability is very poor, it is very difficult especially to add in section chief's cylinder barrel circlip groove, and precision is difficult to guarantee.
(2), the unusual difficulty of assembling, and the interior circlip groove working surface of cut wound seal element very easily.
(3), after long-term the use, that interior card key (13) and cylinder body (11) soak is stagnant, infiltration, corrosion etc., almost forms one, can't dismantle.
Characteristics of the present utility model are exactly that technology capability is good, are convenient to installation and removal, have overcome the shortcoming of above-mentioned existing structure.
The utility model is made up of cylinder body, guide pin bushing, hoop, back-up ring, outer snap ring, dust ring, supporting ring, seal ring, O shape circle etc.Its erection sequence is earlier guide pin bushing to be packed in the cylinder body with piston rod, puts the outer snap ring of two semi-ring formulas afterwards, reinstalls hoop, at last the installation code circlip for shaft.Dismounting is then taked to carry out in proper order in contrast to this.
Structural principle of the present utility model mainly is the form that adopts outer snap ring.Its guide pin bushing is made up of the annulus that three sections external diameter differences, width do not wait.Three sections diameters are respectively D
1, D
2, D
3And D
2＞D
3＞D
1, external diameter is D
2Annulus, be positioned in the middle of, width is B
1Seal ring, supporting ring are installed between piston rod and guide pin bushing.The guide pin bushing diameter is D
1The section on be with cylinder body.Have an annular groove on the end external cylindrical surface of cylinder body, width is B
3A limit of groove is B to the distance of end
2
Guide pin bushing and cylinder body are locked by the outer snap ring that the cross section is two semi-ring formulas of ㄇ shape.It is B that outer snap ring endoporus has width
1+ B
2Groove, the other end of outer snap ring and guide pin bushing external diameter are D
3The cylndrical surface cooperate, and have an annular groove of placing back-up ring on the external cylindrical surface of this end of snap ring outside.The outer snap ring of two halves formula is by hoop institute banding.Hoop is fixed by back-up ring and outer snap ring boss.
The outer snap ring connection set of the utility model---hydraulic cylinder body and guide pin bushing has following advantage:
1, manufacturability improves.Process the interior circlip groove of processing that outer annular groove compares, can improve work efficiency more than 5 times.
2, assembly process process improves greatly.Compare with interior card key, can improve work efficiency more than 30 times.
3, not only overcome the non-dismountable property that interior card key connects, and dismounting is very easy, can improve work efficiency more than 50 times.
When 4, installing, avoided the cut wound of piston and guide pin bushing seal element.
Description of drawings is as follows:
The outer snap ring connection set of Fig. 1 hydraulic cylinder body and guide pin bushing
Wherein:
The 1-cylinder body; The 2-guide pin bushing; The 3-hoop; The 4-back-up ring;
The outer snap ring of 5-; The 6-dust ring; The 7-supporting ring; The 8-seal ring;
9-O shape circle; The 10-piston rod.
Fig. 2 oil hydraulic cylinder cylinder cap card key connection set
Wherein:
The 11-cylinder body; The 12-guide pin bushing; Card key in the 13-;
The 14-spacer; The 15-back-up ring; The 16-dust ring;
The 17-supporting ring; The 18-seal ring; 19-O shape circle.
It is the utility model most preferred embodiment below: (see figure 1)
The utility model is made up of piston rod (10), guide pin bushing (2), cylinder body (1), outer snap ring (5), hoop (3), back-up ring (4), supporting ring (7), dust ring (6), O shape circle (9).
At first piston rod (10) and guide pin bushing (2) are packed in the cylinder body (1), guide pin bushing is made up of the annulus that three sections external diameter differences, width do not wait, and three sections diameters are respectively D
1, D
2, D
3, and D
2＞D
3＞D
1, external diameter is D
2Annulus, be positioned in the middle of, width is B
1Near on the external cylindrical surface of end, have an annular groove at cylinder body (1), its width is B
3, this top end of cylinder body (1) is B to the distance between groove
2Also have an outer snap ring (5) to be enclosed within on cylinder body (1) and the guide pin bushing (2).The cross section of outer snap ring (5) is ㄇ shape, and an end of its ㄇ shape is enclosed within the groove of cylinder body (1), and width is B
3, a boss is arranged on the external cylindrical surface of this end.The intermediate portion width of the outer snap ring (5) of ㄇ shape is B
1+ B
2, outer snap ring (5) the other end and guide pin bushing (2) external diameter are D
3The cylndrical surface match, and width equates.On this end external cylindrical surface, have a groove that back-up ring (4) is installed.The outer snap ring (5) of two halves ring type is by hoop (3) banding that is enclosed within above it.Hoop (3) is fixed by the boss on back-up ring (4) and the outer snap ring (5).
Claims (6)
1, the utility model belongs to general pressurized container, the outer snap ring connection set of a kind of hydraulic cylinder body and guide pin bushing, wherein guide pin bushing [2], back-up ring [4], be sleeved on the piston rod [10], it is characterized in that cylinder body [1] and guide pin bushing [2] with after outer snap ring [5] banding, the external cylindrical surface of snap ring [5] puts hoop [3] outside.
2, device as claimed in claim 1 is characterized in that described guide pin bushing (2) is made up of the annulus that three sections external diameter differences, width do not wait.Three sections diameters are respectively D
1, D
2, D
3, and D
2＞D
3＞D
1, external diameter is D
2Annulus, be positioned in the middle of, width is B
1
3, as claim 1,2 described devices, it is characterized in that having an annular groove on the end external cylindrical surface of cylinder body (1), width is B
3
4, device as claimed in claim 3 is characterized in that outer snap ring (5) is made up of the semi-ring that two cross sections are ㄇ shape.One end of the outer snap ring (5) of ㄇ shape cooperates with the groove of cylinder body (1), and its width also is B
3, and an annular boss is arranged on the external cylindrical surface of this end; The other end of the outer snap ring (5) of ㄇ shape and the external diameter of guide pin bushing (2) are D
3The cylndrical surface cooperate, and ㄇ shape outside, have the annular groove of a placement back-up ring (4) on the external cylindrical surface of this end of snap ring (5).
5, device as claimed in claim 4, the width that it is characterized in that the middle groove of outer snap ring (5) is B
1+ B
2
6, device as claimed in claim 1 is characterized in that hoop (3) is enclosed within on the outer snap ring (5), and the two ends of hoop (3) are fixed by the outer cylinder boss of back-up ring (4) and outer snap ring (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86201033 CN86201033U (en) | 1986-02-24 | 1986-02-24 | Jointing device for hydraulic cylinder body and external clasp of guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86201033 CN86201033U (en) | 1986-02-24 | 1986-02-24 | Jointing device for hydraulic cylinder body and external clasp of guide sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86201033U true CN86201033U (en) | 1987-07-15 |
Family
ID=4804885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86201033 Ceased CN86201033U (en) | 1986-02-24 | 1986-02-24 | Jointing device for hydraulic cylinder body and external clasp of guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86201033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053954C (en) * | 1994-05-24 | 2000-06-28 | 杜长春 | Piston rod type fluid driving cylinder |
| CN1063829C (en) * | 1997-08-25 | 2001-03-28 | 马世友 | Gas pump |
-
1986
- 1986-02-24 CN CN 86201033 patent/CN86201033U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053954C (en) * | 1994-05-24 | 2000-06-28 | 杜长春 | Piston rod type fluid driving cylinder |
| CN1063829C (en) * | 1997-08-25 | 2001-03-28 | 马世友 | Gas pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| CE01 | Termination of patent right |
Termination date: 19880127 |