CN203594643U - Series-connection telescopic oil cylinder - Google Patents
Series-connection telescopic oil cylinder Download PDFInfo
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- CN203594643U CN203594643U CN201320738127.4U CN201320738127U CN203594643U CN 203594643 U CN203594643 U CN 203594643U CN 201320738127 U CN201320738127 U CN 201320738127U CN 203594643 U CN203594643 U CN 203594643U
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- oil cylinder
- telescopic oil
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- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009975 flexible effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a series-connection telescopic oil cylinder and belongs to a telescopic oil cylinder. The series-connection telescopic oil cylinder comprises a first telescopic oil cylinder body, a second telescopic oil cylinder body, a hinge pin I, a hinge pin II and the like. The first telescopic oil cylinder body is inverted and the head portion of a barrel of the second telescopic oil cylinder body is connected with the tail portion of a barrel of the first telescopic oil cylinder body through the hinge pin I. The tail portion of the barrel of the second telescopic oil cylinder body is connected with the head portion of the first telescopic oil cylinder body through the hinge pin II. The two oil cylinder bodies are connected compactly, occupy little space and are good in stress conditions. An oil opening A of the tail portion of the barrel of the first telescopic oil cylinder body is connected with an oil opening A1 of the tail portion of the barrel of the second telescopic oil cylinder body. An oil opening B of the head portion of the barrel of the first telescopic oil cylinder body is connected with an oil opening B1 of the head portion of the barrel of the second telescopic oil cylinder body to achieve the aim of connecting oil circuits in series. The series-connection telescopic oil cylinder has the advantages of being small in shape size, high in connecting strength, convenient to manufacture and high in reliability. The structures of the two oil cylinder bodies are compact, when the oil cylinder bodies work, the eccentric distance between the two oil cylinder bodies is relatively small and the stress on the oil cylinder bodies is favored.
Description
Technical field
The utility model relates to a kind of telescopic oil cylinder, particularly a kind of series connection telescopic oil cylinder.
Background technique
Series connection telescopic oil cylinder is a kind of two oil cylinders to be linked together, and oil circuit " twins " oil cylinder of mutually connecting, and it is long that it has stroke, and hydraulic pipe line is simple, can reduce the advantages such as hydraulic system complexity, is widely used in the two-stage such as arm and the supporting leg field of stretching.
Two oil cylinders of existing series connection telescopic oil cylinder utilize Bolt Connection together more, this connecting mode needs cylinder block that Bolt Connection face is provided, cause between two oil cylinders and certainly exist some gaps, thereby the monnolithic case size of the telescopic oil cylinder that causes connecting is larger, but series connection telescopic oil cylinder is placed in the inside configuration such as arm or supporting leg more, the installing space providing is limited, so the boundary dimension of the telescopic oil cylinder that reduces to connect has positive meaning to the application of series connection telescopic oil cylinder.In addition, in the situation that cylinder force is larger, the application of Bolt Connection also can be restricted, and when cylinder force is larger, the intensity of attachment bolt and Bolt Connection face all may be on the hazard.
Need that a kind of boundary dimension is little, linking intensity is high badly, be convenient to the novel series connection telescopic oil cylinder manufactured, reliability is high.
Model utility content
The series connection telescopic oil cylinder that the purpose of this utility model is to provide a kind of boundary dimension of oil cylinder little, linking intensity is high, be convenient to manufacture, reliability is high.
To achieve these goals, the utility model proposes so a kind of series connection telescopic oil cylinder, comprise the first telescopic oil cylinder, the second telescopic oil cylinder, bearing pin I, bearing pin II, the first telescopic oil cylinder is inverted, the head of the second telescopic oil cylinder cylinder barrel connects by bearing pin I with the afterbody of the first telescopic oil cylinder cylinder barrel, and the afterbody of the second telescopic oil cylinder cylinder barrel connects by bearing pin II with the head of the first telescopic oil cylinder cylinder barrel; The A hydraulic fluid port of the first telescopic oil cylinder cylinder barrel afterbody is connected with the A1 hydraulic fluid port of the second telescopic oil cylinder cylinder barrel afterbody, and the B hydraulic fluid port of the first telescopic oil cylinder cylinder barrel head is connected with the B1 hydraulic fluid port of the second telescopic oil cylinder cylinder barrel head.
The first described telescopic oil cylinder comprises cylinder bar, cylinder barrel and pulley, is provided with hinge a on cylinder bar, for connecting with basic arm, is provided with hinge hole b, c and d on cylinder barrel, is respectively used to connect two semi-girders and the second telescopic oil cylinder, and pulley is connected on cylinder barrel.
Described the second telescopic oil cylinder comprises cylinder barrel and cylinder bar, and cylinder barrel arranges hinge hole a and b, and for connecting the first telescopic oil cylinder, cylinder bar arranges hinge hole c, for connecting two semi-girders.
Beneficial effect, owing to having adopted such scheme, can realize the sequential telescopic of serial oil cylinders.The extend action of oil cylinder: the A hydraulic fluid port to the first telescopic oil cylinder is oil-filled, fluid enters the rodless cavity of the first telescopic oil cylinder and realizes stretching out of the first telescopic oil cylinder, when the rodless cavity of the first telescopic oil cylinder is full of after fluid, the rodless cavity that the fluid that continues to be filled with to A hydraulic fluid port enters the second telescopic oil cylinder by A1 hydraulic fluid port is realized stretching out of the second telescopic oil cylinder.The retract action of oil cylinder: the B hydraulic fluid port to the first telescopic oil cylinder is oil-filled, the rod chamber that fluid enters the first telescopic oil cylinder is realized the retraction of the first telescopic oil cylinder, when the rod chamber of the first telescopic oil cylinder is full of after fluid, continue rod chamber that the fluid that is filled with to B hydraulic fluid port enters the second telescopic oil cylinder by B1 hydraulic fluid port and realize the retraction of the second telescopic oil cylinder.The two-stage flexible parts such as telescopic oil cylinder and arm or supporting leg of this can being connected assemble, and can realize the flexible effect of two-stage to reach a pair of oil circuit, and oil cylinder stable working, and can bear very large external force.
Advantage: the utility model boundary dimension is little, linking intensity is high, be convenient to manufacture, reliability is high.In two cylinder structure compactnesses, in the time of work, the throw of eccentric between two oil cylinders is relatively little, makes the stressed of oil cylinder be tending towards favourable.
Accompanying drawing explanation
Fig. 1 is the structural drawing of facing of telescopic oil cylinder of connecting in prior art.
Fig. 2 is the structural drawing of facing of the utility model series connection telescopic oil cylinder.
Fig. 3 is the plan structure figure of the utility model series connection telescopic oil cylinder.
Fig. 4 is the structural drawing of facing of the utility model series connection telescopic oil cylinder the first telescopic oil cylinder.
Fig. 5 is the structural drawing of facing of the utility model series connection telescopic oil cylinder the second telescopic oil cylinder.
Fig. 6 is that analysing and observe of telescopic oil cylinder of the utility model series connection faced structural drawing.
In figure, 1, the first telescopic oil cylinder; 2, the second telescopic oil cylinder; 3, bearing pin I; 4, bearing pin II; 5, basic arm; 6, a semi-girder; 7, two semi-girders; 11, cylinder bar; 12, cylinder barrel; 13, pulley; 21, cylinder barrel; 22; Cylinder bar.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in embodiment is clearly and completely described.Obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on embodiment of the present utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1: this series connection telescopic oil cylinder comprises: the first telescopic oil cylinder 1, the second telescopic oil cylinder 2, bearing pin I 3, bearing pin II 4, the first telescopic oil cylinder 1 is inverted, the head of the second telescopic oil cylinder 2 cylinder barrels connects by bearing pin I 3 with the afterbody of the first telescopic oil cylinder 1 cylinder barrel, the afterbody of the second telescopic oil cylinder 2 cylinder barrels connects by bearing pin II 4 with the head of the first telescopic oil cylinder 1 cylinder barrel, two oil cylinders connect compact, take up room little, and stressing conditions is good; The A hydraulic fluid port of the first telescopic oil cylinder 1 cylinder barrel afterbody is connected with the A1 hydraulic fluid port of the second telescopic oil cylinder 2 cylinder barrel afterbodys, and the B hydraulic fluid port of the first telescopic oil cylinder 1 cylinder barrel head is connected with the B1 hydraulic fluid port of the second telescopic oil cylinder 2 cylinder barrel heads, has reached the object of oil circuit series connection.
The first described telescopic oil cylinder 1 comprises cylinder bar 11, cylinder barrel 12 and pulley 13, on cylinder bar 11, be provided with hinge a, for connecting with basic arm, on cylinder barrel, be provided with hinge hole b, c and d, be respectively used to connect two semi-girders and the second telescopic oil cylinder 2, pulley 13 is connected on cylinder barrel 12, is supported on arm body internal surface, keeps the stability of oil cylinder.
Described the second telescopic oil cylinder 2 comprises cylinder barrel 21 and cylinder bar 22, and cylinder barrel 21 arranges hinge hole a and b, and for connecting the first telescopic oil cylinder 1, cylinder bar 22 arranges hinge hole c, for connecting two semi-girders.
Fig. 1 is the front view of telescopic oil cylinder of connecting in prior art, two oil cylinders are by Bolt Connection, and the gap between two oil cylinders is larger, and the overall dimensions of the telescopic oil cylinder that causes connecting is larger, and when cylinder force is larger, the intensity of attachment bolt and Bolt Connection face all may be on the hazard.
Fig. 2 is the front view of the utility model series connection telescopic oil cylinder, comprise the first telescopic oil cylinder 1, the second telescopic oil cylinder 2, bearing pin I 3, bearing pin II 4 etc., the first telescopic oil cylinder 1 is inverted, the head of the second telescopic oil cylinder 2 cylinder barrels connects by bearing pin I 3 with the afterbody of the first telescopic oil cylinder 1 cylinder barrel, the afterbody of the second telescopic oil cylinder 2 cylinder barrels connects by bearing pin II 4 with the head of the first telescopic oil cylinder 1 cylinder barrel, two oil cylinders connect compactness, take up room little, and stressing conditions are good; The A hydraulic fluid port of the first telescopic oil cylinder 1 cylinder barrel afterbody is connected with the A1 hydraulic fluid port of the second telescopic oil cylinder 2 cylinder barrel afterbodys, and the B hydraulic fluid port of the first telescopic oil cylinder 1 cylinder barrel head is connected with the B1 hydraulic fluid port of the second telescopic oil cylinder 2 cylinder barrel heads, has reached the object of oil circuit series connection.
Fig. 3 is the plan view of the utility model series connection telescopic oil cylinder, can see clearly the position of each hydraulic fluid port in figure, and the connection situation of bearing pin II 4, and the connecting mode of the connecting mode of bearing pin I 3 and bearing pin II 4 is similar.
Fig. 4 is the front view of the utility model series connection telescopic oil cylinder the first telescopic oil cylinder, comprise cylinder bar 11, cylinder barrel 12 and pulley 13, on cylinder bar 11, be provided with hinge a, for connecting with basic arm, on cylinder barrel, be provided with hinge hole b, c and d, be respectively used to connect two semi-girders and the second telescopic oil cylinder 2, pulley 13 is connected on cylinder barrel 12, be supported on arm body internal surface, keep the stability of oil cylinder.
Fig. 5 is the front view of the utility model series connection telescopic oil cylinder the second telescopic oil cylinder, comprises cylinder barrel 21 and cylinder bar 22, and cylinder barrel 21 arranges hinge hole a and b, and for connecting the first telescopic oil cylinder 1, cylinder bar 22 arranges hinge hole c, for connecting two semi-girders.
Fig. 6 the utility model series connection telescopic oil cylinder embodiment's front view, the present embodiment is the embodiment that series connection telescopic oil cylinder is applied to secondary telescopic boom, secondary telescopic boom comprises basic arm 5, a semi-girder 6 and two semi-girders 7, wherein the first telescopic oil cylinder 1 cylinder club head of the utility model series connection telescopic oil cylinder connects by hinge a with basic arm 5, the first telescopic oil cylinder 1 cylinder barrel head connects by hinge b with a semi-girder 6, and the second telescopic oil cylinder 2 cylinder club heads connect by hinge c with two semi-girders 7.Drive a semi-girder 6 and two semi-girders 7 to stretch by the expanding-contracting action of two oil cylinders, realize the flexible effect of secondary to realize a group oil cylinder.
Series connection telescopic oil cylinder of the present utility model is not limited to above-mentioned structural type, and any safe and reliable connecting mode all can be realized the function of this device, and is conducive to save space-efficient structural type all at protection domain of the present utility model.
Other relevant concrete structures of series connection telescopic oil cylinder that the utility model is related, are those of ordinary skills and are familiar with, and are no longer described in detail at this.
In conjunction with most preferred embodiment, the utility model is described above, but the utility model is not limited to the embodiment of above announcement, and should contains the various modifications of carrying out according to essence of the present utility model, equivalent combinations.
Claims (3)
1. a series connection telescopic oil cylinder, it is characterized in that: comprise the first telescopic oil cylinder, the second telescopic oil cylinder, bearing pin I, bearing pin II etc., the first telescopic oil cylinder is inverted, the head of the second telescopic oil cylinder cylinder barrel connects by bearing pin I with the afterbody of the first telescopic oil cylinder cylinder barrel, and the afterbody of the second telescopic oil cylinder cylinder barrel connects by bearing pin II with the head of the first telescopic oil cylinder cylinder barrel; The A hydraulic fluid port of the first telescopic oil cylinder cylinder barrel afterbody is connected with the A1 hydraulic fluid port of the second telescopic oil cylinder cylinder barrel afterbody, and the B hydraulic fluid port of the first telescopic oil cylinder cylinder barrel head is connected with the B1 hydraulic fluid port of the second telescopic oil cylinder cylinder barrel head.
2. novel series connection telescopic oil cylinder according to claim 1, it is characterized in that: the first described telescopic oil cylinder comprises cylinder bar, cylinder barrel and pulley, on cylinder bar, be provided with hinge a, for connecting with basic arm, on cylinder barrel, be provided with hinge hole b, c and d, be respectively used to connect two semi-girders and the second telescopic oil cylinder, pulley is connected on cylinder barrel.
3. novel series connection telescopic oil cylinder according to claim 1, is characterized in that: described the second telescopic oil cylinder comprises cylinder barrel and cylinder bar, and cylinder barrel arranges hinge hole a and b, for connecting the first telescopic oil cylinder, cylinder bar arranges hinge hole c, for connecting two semi-girders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738127.4U CN203594643U (en) | 2013-11-21 | 2013-11-21 | Series-connection telescopic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738127.4U CN203594643U (en) | 2013-11-21 | 2013-11-21 | Series-connection telescopic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594643U true CN203594643U (en) | 2014-05-14 |
Family
ID=50675536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738127.4U Expired - Lifetime CN203594643U (en) | 2013-11-21 | 2013-11-21 | Series-connection telescopic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275626A (en) * | 2018-02-27 | 2018-07-13 | 徐州徐工随车起重机有限公司 | A kind of aerial lift device with insulated arm working bucket lifting structure |
-
2013
- 2013-11-21 CN CN201320738127.4U patent/CN203594643U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275626A (en) * | 2018-02-27 | 2018-07-13 | 徐州徐工随车起重机有限公司 | A kind of aerial lift device with insulated arm working bucket lifting structure |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
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| CX01 | Expiry of patent term |