CN203756631U - Hydraulic cylinder capable of reducing liquid compression influences - Google Patents
Hydraulic cylinder capable of reducing liquid compression influences Download PDFInfo
- Publication number
- CN203756631U CN203756631U CN201420155957.9U CN201420155957U CN203756631U CN 203756631 U CN203756631 U CN 203756631U CN 201420155957 U CN201420155957 U CN 201420155957U CN 203756631 U CN203756631 U CN 203756631U
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- cylinder body
- main piston
- piston
- subsidiary
- master cylinder
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Abstract
Disclosed is a hydraulic cylinder capable of reducing liquid compression influences. The hydraulic cylinder capable of reducing the liquid compression influences comprises a master cylinder body, wherein a main piston is arranged in the master cylinder body, one end of the master cylinder body is connected with a subsidiary cylinder body, the axis of the master cylinder body and the axis of the subsidiary cylinder body vertically intersect and thereby form a T shape, a first oil mouth and a second oil mouth are respectively arranged at two ends of the subsidiary cylinder body, a subsidiary piston is arranged in the subsidiary cylinder body, the subsidiary piston is located between the master cylinder body and the first oil mouth, a radial direction oil hole and an axial direction oil hole are formed in the main piston, the radial direction oil hole is communicated with the axial direction oil hole, an opening of the radial direction oil hole is formed in the side face of the main piston, and an opening of the axial direction oil hole is formed in the bottom face of the main piston. According to the hydraulic cylinder capable of reducing the liquid compression influences, oil is injected into the first oil mouth of the subsidiary cylinder body, the subsidiary piston is pushed by oil pressure so as to move towards the master cylinder body, the subsidiary piston transmits pressure to the bottom face of the main piston through hydraulic oil between the subsidiary piston and the main piston, and then pushes the main piston to rise, and stability in space and ability in bearing instant impact of a bearing structure can be guaranteed by using pressure in the radial direction of the subsidiary piston, which is generated when the subsidiary piston bears the weight of the main piston, and furthermore the liquid compression influences are eliminated.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to hydraulics, particularly a kind of oil hydraulic cylinder of subduing liquid compression impact.
Background technique:
Oil hydraulic cylinder is widely used in industrial production.Wherein, piston rod does straight line motion with respect to cylinder body.In certain applications occasion, require the structure that piston rod supports in space, to there is stability, and can bear the impact of moment.Due to the compressibility of the leakage in hydraulic transmission and liquid, oil hydraulic cylinder of the prior art is difficult to realize above-mentioned requirements.
Summary of the invention:
The purpose of this utility model is to provide a kind of oil hydraulic cylinder of subduing liquid compression impact, and the described this oil hydraulic cylinder of subduing liquid compression impact will solve the compressibility of liquid in prior art and cause oil hydraulic cylinder to be not enough to ensure the stability of bearing structure in space and the technical problem that can bear moment impact.
This oil hydraulic cylinder of subduing liquid compression impact of the present utility model, comprise a Master cylinder body, in described Master cylinder body, be provided with a main piston and a main piston rod, described main piston rod is coaxial with Master cylinder body, one end of main piston rod is connected with described main piston, Master cylinder body is stretched out from one end of Master cylinder body in one end of main piston rod, wherein, the other end of described Master cylinder body is connected with a subsidiary cylinder, the axis of the axis of described Master cylinder body and described subsidiary cylinder is T-shaped and intersects vertically, the two ends of subsidiary cylinder are provided with first hydraulic fluid port and second hydraulic fluid port separately, in subsidiary cylinder, be provided with a sub-piston, described sub-piston is between Master cylinder body and described the first hydraulic fluid port, in described main piston, be provided with a radial direction oil hole and an axial oilhole, described radial direction oil hole and axially oilhole are blind hole, the blind hole end of radial direction oil hole communicates with the blind hole end of axial oilhole, the other end opening of radial direction oil hole at main piston in the side of sub-piston, axially the other end opening of oilhole is in the bottom surface of main piston.
Further, the bottom surface of main piston is arc surface, the outer wall form fit of the bottom shape of main piston and sub-piston.
Working principle of the present utility model is: second hydraulic fluid port of closing subsidiary cylinder, to oiling in the first hydraulic fluid port of subsidiary cylinder, oil pressure promotes sub-piston and moves to Master cylinder body, sub-piston is by the hydraulic oil between sub-piston and main piston, transfer the pressure to the bottom surface of main piston, promotion main piston rises, after sub-piston moves under the bottom surface of main piston, from the second hydraulic fluid port emptying of subsidiary cylinder, the pressure that main piston rod is subject to by main piston in the axial direction, sub-piston is delivered to Master cylinder body diametrically, can ensure the stability of bearing structure in space and can bear moment impact.To oiling in the second hydraulic fluid port of subsidiary cylinder, emptying in the first hydraulic fluid port of subsidiary cylinder, oil pressure promotes sub-piston and resets, and main piston resets under Gravitative Loads.
The utility model and prior art are compared, and its effect is actively with obvious.The utility model arranges subsidiary cylinder in one end of oil hydraulic cylinder, utilizes sub-piston to carry diametrically the pressure of main piston, can ensure the stability of bearing structure in space and can bear moment impact, has eliminated the impact of liquid compressibility.
Brief description of the drawings:
Fig. 1 is the principle schematic of the oil hydraulic cylinder of subduing liquid compression impact of the present utility model.
Fig. 2 is the principle schematic of the working state of the oil hydraulic cylinder of subduing liquid compression impact of the present utility model.
Embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, the oil hydraulic cylinder of subduing liquid compression impact of the present utility model, comprise a Master cylinder body 1, in described Master cylinder body 1, be provided with a main piston 2 and a main piston rod 3, described main piston rod 3 is coaxial with Master cylinder body 1, one end of main piston rod 3 is connected with described main piston 2, Master cylinder body 1 is stretched out from one end of Master cylinder body 1 in one end of main piston rod 3, wherein, the other end of described Master cylinder body 1 is connected with a subsidiary cylinder 4, the axis of the axis of described Master cylinder body 1 and described subsidiary cylinder 4 is T-shaped and intersects vertically, the two ends of subsidiary cylinder 4 are provided with first hydraulic fluid port 5 and second hydraulic fluid port 6 separately, in subsidiary cylinder 4, be provided with a sub-piston 9, described sub-piston 9 is between Master cylinder body 1 and described the first hydraulic fluid port 5, in described main piston 2, be provided with a radial direction oil hole 7 and an axial oilhole 8, described radial direction oil hole 7 and axially oilhole 8 are blind hole, the blind hole end of radial direction oil hole 7 communicates with the blind hole end of axial oilhole 8, the other end opening of radial direction oil hole 7 at main piston 2 in the side of sub-piston 9, axially the other end opening of oilhole 8 is in the bottom surface of main piston 2.
Further, the bottom surface of main piston 2 is arc surface, the outer wall form fit of the bottom shape of main piston 2 and sub-piston 9.
The working principle of the present embodiment is: second hydraulic fluid port 6 of closing subsidiary cylinder 4, to the interior oiling of the first hydraulic fluid port 5 of subsidiary cylinder 4, oil pressure promotes sub-piston 9 and moves to Master cylinder body 1, sub-piston 9 is by the hydraulic oil between sub-piston 9 and main piston 2, transfer the pressure to the bottom surface of main piston 2, promoting main piston 2 rises, after sub-piston 9 moves under the bottom surface of main piston 2, from the second hydraulic fluid port 6 emptyings of subsidiary cylinder 4, the pressure that main piston rod 3 is subject to by main piston 2 in the axial direction, sub-piston 9 is delivered to Master cylinder body 1 diametrically, the stability of bearing structure in space can be ensured and moment impact can be born.To the interior oiling of the second hydraulic fluid port 6 of subsidiary cylinder 4, at the interior emptying of the first hydraulic fluid port 5 of subsidiary cylinder 4, oil pressure promotes sub-piston 9 and resets, and main piston 2 resets under Gravitative Loads.
Claims (2)
1. can subdue the oil hydraulic cylinder of liquid compression impact for one kind, comprise a Master cylinder body, in described Master cylinder body, be provided with a main piston and a main piston rod, described main piston rod is coaxial with Master cylinder body, one end of main piston rod is connected with described main piston, Master cylinder body is stretched out from one end of Master cylinder body in one end of main piston rod, it is characterized in that: the other end of described Master cylinder body is connected with a subsidiary cylinder, the axis of the axis of described Master cylinder body and described subsidiary cylinder is T-shaped and intersects vertically, the two ends of subsidiary cylinder are provided with first hydraulic fluid port and second hydraulic fluid port separately, in subsidiary cylinder, be provided with a sub-piston, described sub-piston is between Master cylinder body and described the first hydraulic fluid port, in described main piston, be provided with a radial direction oil hole and an axial oilhole, described radial direction oil hole and axially oilhole are blind hole, the blind hole end of radial direction oil hole communicates with the blind hole end of axial oilhole, the other end opening of radial direction oil hole at main piston in the side of sub-piston, axially the other end opening of oilhole is in the bottom surface of main piston.
2. the oil hydraulic cylinder of subduing liquid compression impact as claimed in claim 1, is characterized in that: the bottom surface of main piston is arc surface the outer wall form fit of the bottom shape of main piston and sub-piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155957.9U CN203756631U (en) | 2014-04-01 | 2014-04-01 | Hydraulic cylinder capable of reducing liquid compression influences |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420155957.9U CN203756631U (en) | 2014-04-01 | 2014-04-01 | Hydraulic cylinder capable of reducing liquid compression influences |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756631U true CN203756631U (en) | 2014-08-06 |
Family
ID=51251912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420155957.9U Expired - Fee Related CN203756631U (en) | 2014-04-01 | 2014-04-01 | Hydraulic cylinder capable of reducing liquid compression influences |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404467A (en) * | 2018-12-10 | 2019-03-01 | 新昌县万合机械有限公司 | A kind of hydraulic shock-absorbing cylinder |
-
2014
- 2014-04-01 CN CN201420155957.9U patent/CN203756631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404467A (en) * | 2018-12-10 | 2019-03-01 | 新昌县万合机械有限公司 | A kind of hydraulic shock-absorbing cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20200401 |