CN102954063A - Outward-pushed hydraulic cylinder - Google Patents
Outward-pushed hydraulic cylinder Download PDFInfo
- Publication number
- CN102954063A CN102954063A CN2012100931004A CN201210093100A CN102954063A CN 102954063 A CN102954063 A CN 102954063A CN 2012100931004 A CN2012100931004 A CN 2012100931004A CN 201210093100 A CN201210093100 A CN 201210093100A CN 102954063 A CN102954063 A CN 102954063A
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- CN
- China
- Prior art keywords
- cylinder groove
- cylinder
- soft band
- roller bearing
- groove
- 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.)
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Abstract
The invention provides an outward-pushed hydraulic cylinder. The hydraulic cylinder is composed of a cylinder groove and a soft belt, wherein the cylinder groove is hermetically engaged with the edge of the soft belt, and forced liquid in the cylinder groove and separated from the soft belt pushes an external rolling shaft to move forwards; and a fixing device externally connected with the rolling shaft is externally connected with components such as a connecting rod and the like so as to transmit motive power. According to the invention, the surface of the cylinder groove is easy to form through machining in comparison with the inner wall of a cylinder body of a common hydraulic cylinder, and especially, the process difficulty of the cylinder groove with a large length is lower than that of a cylinder body with the same length. The cylinder groove can be bent and even rotated, but the cylinder body only can be straight. Compared with a piston structure, a rolling shaft structure is easy to disassemble, assemble and maintain. A rolling friction mode is mainly adopted between the rolling shaft and the soft belt, and the abrasion and energy consumption of rolling friction are smaller than those of sliding friction between a piston and the cylinder body.
Description
Technical field
The present invention relates to a kind of hydraulic transmission.
Background technique
At present, oil hydraulic cylinder all is comprised of parts such as cylinder body and pistons.The inner circle of cylinder body processes that often technical difficulty is larger.Piston and cylinder body to cooperate with friction also be a technical barrier.Simultaneously, having oil leakage phenomenon exists.
Summary of the invention
The invention provides a kind of hydraulic transmission, it is characterized in that: oil hydraulic cylinder is comprised of cylinder groove and soft band.The cylinder groove engages sealing with soft belt edge, and roller bearing is pressed onto soft band in the cylinder groove closely.Pressure flow body between soft band and the cylinder groove travels forward across the roller bearing that soft band promotes the outside.The parts transferring power such as the outer connective pole of fixing device that roller bearing is external.
Advantage of the present invention: cylinder rooved face of the present invention is easy to machine shaping than common hydraulic cylinder body inwall, and the cylinder groove that especially length is larger is lower compared with the cylinder body technology difficulty of equal length.The cylinder groove can be crooked even rotation, and cylinder body can only be straight.Rolling shaft structure is easy to dismounting and maintenance than piston structure.Mainly be rolling friction between roller bearing and the soft band, this wearing and tearing and energy consumption than the sliding friction between piston and the cylinder body is little.
Description of drawings
Fig. 1 is embodiment 1 sectional view;
Fig. 2 is embodiment 1 plan view;
Embodiment
Cylinder groove (1) links together by fixing device (3) with the edge of soft band (2).Be tightly connected between the two.Soft band fits tightly with the cylinder groove but without being connected except the attachment portion.Roller bearing (4) is anchored on the cylinder groove by tightening device (5).Tightening device can move along the cylinder groove.Roller bearing is pressed onto soft band in the cylinder groove, makes close contact between the soft band in roller bearing place and the cylinder groove and seals.After the pressure flow body enters between cylinder groove and the soft band the soft band of roller bearing front heave with the cylinder groove in be formed with the pressure cavity.The cambered surface of joint of heaving rear soft band and cylinder groove is substantially tangent.Pressure flow body in the cavity promotes roller bearing across soft band and advances.The parts outputting powers such as the outer connective pole of tightening device.
Claims (7)
1. hydraulic transmission, it is characterized in that: cylinder body is sealed to form by cylinder groove and soft band, and roller bearing is pressed onto soft band on the cylinder groove and seals, and the pressure flow body promotes the roller bearing motion of outside across soft band, and roller bearing drives tightening device and moves the tightening device outputting power.
2. according to the described cylinder groove of claim 1, it is characterized in that: the axis shape can be curve.
3. according to the described soft band of claim 1, it is characterized in that: formed by membrane structure material, fiber reinforcing material, high strength fabric or variability thin-walled material.
4. according to the described soft band of claim 1, it is characterized in that: the cambered surface of heaving rear and cylinder groove joint is substantially tangent.
5. according to the described soft band of claim 1, it is characterized in that: the internal surface area of soft band sealing cylinder groove equals the internal surface area after the cylinder groove is sealed by soft band.
6. according to the described roller bearing of claim 1, it is characterized in that: the cross section camber line of profile camber line and cylinder groove can coincide.
7. according to the described tightening device of claim 1, it is characterized in that: can move along the cylinder groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100931004A CN102954063A (en) | 2012-03-31 | 2012-03-31 | Outward-pushed hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100931004A CN102954063A (en) | 2012-03-31 | 2012-03-31 | Outward-pushed hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102954063A true CN102954063A (en) | 2013-03-06 |
Family
ID=47763302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100931004A Pending CN102954063A (en) | 2012-03-31 | 2012-03-31 | Outward-pushed hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102954063A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5045180A (en) * | 1973-08-28 | 1975-04-23 | ||
| JPS5780675U (en) * | 1980-11-05 | 1982-05-18 | ||
| DE3302444A1 (en) * | 1983-01-26 | 1984-07-26 | Rudolf Dipl.-Ing. 3000 Hannover Goldin | Pneumatic or hydraulic linear drive |
| JPS61248902A (en) * | 1985-04-26 | 1986-11-06 | Haamo:Kk | Rodless cylinder |
-
2012
- 2012-03-31 CN CN2012100931004A patent/CN102954063A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5045180A (en) * | 1973-08-28 | 1975-04-23 | ||
| JPS5780675U (en) * | 1980-11-05 | 1982-05-18 | ||
| DE3302444A1 (en) * | 1983-01-26 | 1984-07-26 | Rudolf Dipl.-Ing. 3000 Hannover Goldin | Pneumatic or hydraulic linear drive |
| JPS61248902A (en) * | 1985-04-26 | 1986-11-06 | Haamo:Kk | Rodless cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |