CN202040133U - Pressure slow increasing device - Google Patents
Pressure slow increasing device Download PDFInfo
- Publication number
- CN202040133U CN202040133U CN2011200430393U CN201120043039U CN202040133U CN 202040133 U CN202040133 U CN 202040133U CN 2011200430393 U CN2011200430393 U CN 2011200430393U CN 201120043039 U CN201120043039 U CN 201120043039U CN 202040133 U CN202040133 U CN 202040133U
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- China
- Prior art keywords
- pressure
- hydraulic
- cavity
- pneumaticpiston
- cylinder
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Abstract
The utility model discloses a pressure slow increasing device, comprising a hydraulic cylinder and a pneumatic cylinder which is fixedly connected to the hydraulic cylinder along the extending direction of a centre line. A hydraulic piston is disposed in a cavity of the hydraulic cylinder, and a pneumatic piston is disposed in a cavity of the pneumatic cylinder. A buffer spring for elastically transmitting force from the hydraulic piston to the pneumatic piston is disposed between the hydraulic piston and the pneumatic piston. A driving shaft for rigidly transmitting force from the hydraulic piston and the pneumatic piston is disposed between the hydraulic piston and the pneumatic piston. The length of the driving shaft is smaller than that of the buffer spring in the maximum stretching state and is larger than that of the buffer spring in the maximum compression state. Two ends of the pressure slow increasing device are respectively provided with an oil inlet for feeding hydraulic oil and an inflation valve for filling air in an air pressure cavity. The cavity of the hydraulic cylinder is filled with compressible air. The pressure slow increasing device resolves problem in the conventional pressurization detection process that a pressure hydraulic gauge and a pressure hydraulic piece often undergo damage for the oil pressure rises too fast, resources are wasted and producing cost is increased.
Description
Technical field
The utility model relates to the hydraulic pressure Detection range, especially a kind of slow device that increases of pressure that is used for the hydraulic pressure detection.
Background technique
Some part needs to do withstand voltage and leak test before dispatching from the factory, pressure during test is very big, and common research technique is fill with oil in part after, continues filling fittings and will produce pressure, until reaching test pressure, because the decrement of oil is very little,, even have little time to close oil pump so that pressure rises is very fast, again because be frequent test, cause hydralic pressure gauge and hydraulic parts often to damage, caused the waste of resource, increased cost of production.
Summary of the invention
The purpose of this utility model is to provide a kind of pressure the slow device that increases, and causes hydralic pressure gauge and hydraulic parts often to damage to solve in the existing resistance test process too soon because oil pressure rises, and has caused the wasting of resources, the problem that cost of production is high.
In order to address the above problem, the technical solution of the utility model is:
The slow device that increases of pressure, this device comprises oil hydraulic cylinder and the pneumatic cylinder that is connected and is provided with along its centerline length bearing of trend, be provided with hydraulic piston in the cavity of described oil hydraulic cylinder, the chamber Nei Neinei of described pneumatic cylinder is provided with pneumaticpiston, push up to be furnished with between described hydraulic piston and the pneumaticpiston and be used for the damping spring of hydraulic piston to the power transmission of pneumaticpiston elasticity, be provided with between described hydraulic piston and the pneumaticpiston and be used for the force transmission shaft of hydraulic piston to the power transmission of pneumaticpiston rigidity, the length of described force transmission shaft less than damping spring in the length under the maximum elongation state and greater than the length of damping spring under most compressed state, the slow two ends that increase device of described pressure are respectively equipped with and are used for hydraulic oil filler opening that enters and the gas charging valve that is used for to the atmospheric pressure cavity inflation, are filled with compressible gas in the cavity of described pneumatic cylinder.
This device also comprises the connection set that is used to connect oil hydraulic cylinder and pneumatic cylinder.
Described connection set is for along pneumatic cylinder centerline length bearing of trend and the direct shaft type cylinder body that is wholely set with pneumatic cylinder, and the cavity diameter of described direct shaft type cylinder body is less than the cavity diameter of described pneumatic cylinder.
The slow two ends that increase device of described pressure are respectively equipped with hydraulic cylinder and pneumatic cylinder lid, and described filler opening and gas charging valve are arranged at described hydraulic cylinder respectively and pneumatic cylinder covers.
The cavity diameter of described oil hydraulic cylinder is less than the cavity diameter of the direct shaft type cylinder body of the contact of end face with it, and described hydraulic piston comprises that the hydraulic pressure cavity that is provided with in the cavity of oil hydraulic cylinder cooperates the direct shaft type cylinder body that is provided with in the cavity of section and direct shaft type cylinder body to cooperate section.
Described pneumatic cylinder covers the fitting seat that is provided with the gas charging valve that is used for air inlet and is used to install air pressure detection table.
The pressure minimum of pneumaticpiston and described damping spring are equated the pressure maximum of pneumaticpiston described compressible gas and described compressible gas is a nitrogen.
Described force transmission shaft has two partly to constitute, the wherein a part of side of hydraulic piston that be arranged at towards pneumaticpiston, another part is arranged at the side of hydraulic piston towards pneumaticpiston, two-part length sum of described force transmission shaft less than damping spring in the length under the maximum elongation state and greater than the length of damping spring under most compressed state.
Described air pressure cylinder cap is provided with towards a side of pneumaticpiston and is used to protect that this pressure is slow increases the pneumaticpiston block that device is not burst by compressible gas.
The beneficial effects of the utility model are: this model utility provides a kind of pressure the slow device that increases, this device comprises oil hydraulic cylinder and the pneumatic cylinder that is connected and is provided with along its length direction, be provided with hydraulic piston in the cavity of described oil hydraulic cylinder, be provided with pneumaticpiston in the cavity in the described pneumatic cylinder, push up to be furnished with between described hydraulic piston and the pneumaticpiston and be used for the damping spring of hydraulic piston to the power transmission of pneumaticpiston elasticity, be provided with between described hydraulic piston and the pneumaticpiston and be used for the force transmission shaft of hydraulic piston to the power transmission of pneumaticpiston rigidity, the length of described force transmission shaft less than damping spring in the length under the maximum elongation state and greater than the length of damping spring under most compressed state, the slow two ends that increase device of described pressure are respectively equipped with and are used for hydraulic oil filler opening that enters and the gas charging valve that is used for to the atmospheric pressure cavity inflation, be filled with compressible gas in the cavity of described atmospheric pressure cavity, this pressure is slow in use increases device and is connected in parallel by filler opening and tested part, after filling with hydraulic oil in the part, more than hydraulic oil can enter into the slow device that increases of this pressure by filler opening, under pressure, hydraulic piston can move to the end away from filler opening, damping spring pressure also increases gradually, when the force transmission shaft of hydraulic piston one side with after pneumaticpiston contacts, damping spring is not in compression, damping spring reaches maximum to the pressure of pneumaticpiston, when pressure continues to increase, pneumaticpiston promotes hydraulic piston and pressurized gas, until reaching the required pressure of test, thereby reach the slow effect that increases of pressure, avoiding oil pressure to rise causes hydralic pressure gauge and hydraulic parts often to damage too soon, caused the wasting of resources, the problem that cost of production is high.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is the structural representation of pneumatic cylinder among Fig. 1;
Fig. 3 is the structural representation of air pressure cylinder cap among Fig. 1;
Fig. 4 is the structural representation of pneumaticpiston among Fig. 1;
Fig. 5 is the structural representation of hydraulic piston among Fig. 1;
Fig. 6 is the structural representation of oil hydraulic cylinder among Fig. 1;
Fig. 7 is the structural representation of hydraulic cylinder among Fig. 1;
Fig. 8 is the user mode figure of present embodiment.
Embodiment
Embodiment is shown in Fig. 1 ~ 8: the slow device 19 that increases of pressure; this device comprises oil hydraulic cylinder 3 and the pneumatic cylinder 8 that is connected and is provided with along its center line bearing of trend; be provided with hydraulic piston 2 in the described oil hydraulic cylinder 3; be provided with pneumaticpiston 7 in the described atmospheric pressure cavity 13; push up to be furnished with between hydraulic piston 2 and the pneumaticpiston 7 and be used for the damping spring 4 of pneumaticpiston 7 to hydraulic piston 2 elasticity power transmissions; be provided with between described hydraulic piston 2 and the pneumaticpiston 7 and be used for the force transmission shaft of hydraulic piston to the power transmission of pneumaticpiston rigidity; in the present embodiment; pneumatic cylinder 8 and oil hydraulic cylinder 3 link together by connection set 15; connection set 15 is for along pneumatic cylinder 8 centerline length bearing of trends and the direct shaft type cylinder body that is wholely set with pneumatic cylinder 8; connection set 15 can also be the base that is used to connect pneumatic cylinder 8 and oil hydraulic cylinder 3 in other embodiments; the cavity diameter of described oil hydraulic cylinder 3 is less than the cavity diameter of the direct shaft type cylinder body of the directed cavity 13 of the contact of end face with it; described hydraulic piston 2 comprises that the hydraulic pressure cavity that is provided with in the cavity of oil hydraulic cylinder cooperates the direct shaft type cylinder body that is provided with in section 17 and the direct shaft type cylinder body to cooperate section 14; the cavity diameter of described atmospheric pressure cavity 13 is bigger than the cavity diameter of direct shaft type cylinder body; the cavity of the cavity of atmospheric pressure cavity 13 and direct shaft type cylinder body forms stepped cavity; stepped cavity can stop hydraulic piston 2 to continue to move to the direct shaft type cylinder body; stepped cavity body structure has served as hydraulic piston 2 and has continued mobile stop configurations to directed cavity 15; stepped cavity body structure can also be to stop hydraulic piston 2 to continue other stop configurations that moves to directed cavity 15 directions in other embodiment of the present utility model; force transmission shaft has two partly to constitute in the present embodiment; wherein a part of 5 be arranged at the side of hydraulic piston 2 towards pneumaticpiston 7; another part 6 is arranged at the side of hydraulic piston 2 towards pneumaticpiston 7; two-part length sum of described force transmission shaft less than damping spring 4 in the length under the maximum elongation state and greater than the length of damping spring 4 under most compressed state; described damping spring 4 is sheathed on the described force transmission shaft; the cavity diameter of oil hydraulic cylinder 3 is less than the cavity diameter of the direct shaft type cylinder body 15 of the contact of end face with it; be filled with compressible gas in the described atmospheric pressure cavity 13; compressible gas equates the pressure maximum of 4 pairs of pneumaticpistons 7 of pressure minimum and described damping spring of pneumaticpiston 7 and described compressible gas is a nitrogen in the present embodiment; state the slow two ends that increase device of pressure and be respectively equipped with hydraulic cylinder 1 and pneumatic cylinder lid 9; the gas charging valve 10 that is respectively equipped with the filler opening 16 that is used for oil-feed on described hydraulic cylinder 1 and the pneumatic cylinder lid 9 and is used for inflating to atmospheric pressure cavity 13; also be provided with the fitting seat 11 that is used to install air pressure detection table on the air pressure cylinder cap 9; described air pressure cylinder cap 9 is provided with towards a side of pneumaticpiston 7 and is used to protect that this pressure is slow increases the pneumaticpiston block 12 that device 19 is not burst by compressible gas, and this pressure is slow in actual use increases device 19 and tested part 20 is arranged in parallel on the pressurization oil circuit of pressurizing system 18.
Claims (9)
1. the slow device that increases of pressure, it is characterized in that: this device comprises oil hydraulic cylinder and the pneumatic cylinder that is connected and is provided with along its centerline length bearing of trend, be provided with hydraulic piston in the cavity of described oil hydraulic cylinder, the chamber Nei Neinei of described pneumatic cylinder is provided with pneumaticpiston, push up to be furnished with between described hydraulic piston and the pneumaticpiston and be used for the damping spring of hydraulic piston to the power transmission of pneumaticpiston elasticity, be provided with between described hydraulic piston and the pneumaticpiston and be used for the force transmission shaft of hydraulic piston to the power transmission of pneumaticpiston rigidity, the length of described force transmission shaft less than damping spring in the length under the maximum elongation state and greater than the length of damping spring under most compressed state, the slow two ends that increase device of described pressure are respectively equipped with and are used for hydraulic oil filler opening that enters and the gas charging valve that is used for to the atmospheric pressure cavity inflation, are filled with compressible gas in the cavity of described pneumatic cylinder.
2. pressure according to claim 1 is slow to increase device, and it is characterized in that: this device also comprises the connection set that is used to connect oil hydraulic cylinder and pneumatic cylinder.
3. the slow device that increases of pressure according to claim 2, it is characterized in that: described connection set is for along pneumatic cylinder centerline length bearing of trend and the direct shaft type cylinder body that is wholely set with pneumatic cylinder, and the cavity diameter of described direct shaft type cylinder body is less than the cavity diameter of described pneumatic cylinder.
4. pressure according to claim 1 is slow to increase device, it is characterized in that: the slow two ends that increase device of described pressure are respectively equipped with hydraulic cylinder and pneumatic cylinder lid, and described filler opening and gas charging valve are arranged at described hydraulic cylinder respectively and pneumatic cylinder covers.
5. the slow device that increases of pressure according to claim 3, it is characterized in that: the cavity diameter of described oil hydraulic cylinder is less than the cavity diameter of the direct shaft type cylinder body of the contact of end face with it, and described hydraulic piston comprises that the hydraulic pressure cavity that is provided with in the cavity of oil hydraulic cylinder cooperates the direct shaft type cylinder body that is provided with in the cavity of section and direct shaft type cylinder body to cooperate section.
6. pressure according to claim 4 is slow to increase device, it is characterized in that: described pneumatic cylinder covers the fitting seat that is provided with the gas charging valve that is used for air inlet and is used to install air pressure detection table.
7. pressure according to claim 1 is slow to increase device, it is characterized in that: the pressure minimum of pneumaticpiston and described damping spring are equated the pressure maximum of pneumaticpiston described compressible gas and described compressible gas is a nitrogen.
8. the slow device that increases of pressure according to claim 1, it is characterized in that: described force transmission shaft has two partly to constitute, the wherein a part of side of hydraulic piston that be arranged at towards pneumaticpiston, another part is arranged at the side of hydraulic piston towards pneumaticpiston, two-part length sum of described force transmission shaft less than damping spring in the length under the maximum elongation state and greater than the length of damping spring under most compressed state.
9. pressure according to claim 1 is slow to increase device, it is characterized in that: described air pressure cylinder cap is provided with towards a side of pneumaticpiston and is used to protect that this pressure is slow increases the pneumaticpiston block that device is not burst by compressible gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200430393U CN202040133U (en) | 2011-02-21 | 2011-02-21 | Pressure slow increasing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200430393U CN202040133U (en) | 2011-02-21 | 2011-02-21 | Pressure slow increasing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040133U true CN202040133U (en) | 2011-11-16 |
Family
ID=44967579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200430393U Expired - Lifetime CN202040133U (en) | 2011-02-21 | 2011-02-21 | Pressure slow increasing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040133U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216494A (en) * | 2013-04-25 | 2013-07-24 | 长沙理工大学 | Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft |
| CN103216490A (en) * | 2013-04-25 | 2013-07-24 | 长沙理工大学 | Air bag type buffering slow-release cavity arranged at end of hinged pin shaft |
| CN104196795A (en) * | 2014-08-05 | 2014-12-10 | 武汉船用机械有限责任公司 | Gas and liquid compensation valve and closed loop hydraulic system with gas and liquid compensation valve |
| CN104299862A (en) * | 2014-06-27 | 2015-01-21 | 国家电网公司 | Buffer and circuit breaker operating mechanism using the same |
| CN104712595A (en) * | 2015-03-17 | 2015-06-17 | 青岛思锐科技有限公司 | Empty oil conversion supercharging device |
| CN105298978A (en) * | 2015-11-20 | 2016-02-03 | 常州海宏液压设备有限公司 | Tensile force floating buffering vertical mill hydraulic oil cylinder |
| CN109637335A (en) * | 2018-12-27 | 2019-04-16 | 金肯职业技术学院 | A kind of hydraulic and pneumatic transmission teaching aid |
-
2011
- 2011-02-21 CN CN2011200430393U patent/CN202040133U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216494A (en) * | 2013-04-25 | 2013-07-24 | 长沙理工大学 | Air chamber and spring combined buffering slow-release cavity arranged in hinged pin shaft |
| CN103216490A (en) * | 2013-04-25 | 2013-07-24 | 长沙理工大学 | Air bag type buffering slow-release cavity arranged at end of hinged pin shaft |
| CN104299862A (en) * | 2014-06-27 | 2015-01-21 | 国家电网公司 | Buffer and circuit breaker operating mechanism using the same |
| CN104196795A (en) * | 2014-08-05 | 2014-12-10 | 武汉船用机械有限责任公司 | Gas and liquid compensation valve and closed loop hydraulic system with gas and liquid compensation valve |
| CN104712595A (en) * | 2015-03-17 | 2015-06-17 | 青岛思锐科技有限公司 | Empty oil conversion supercharging device |
| CN105298978A (en) * | 2015-11-20 | 2016-02-03 | 常州海宏液压设备有限公司 | Tensile force floating buffering vertical mill hydraulic oil cylinder |
| CN109637335A (en) * | 2018-12-27 | 2019-04-16 | 金肯职业技术学院 | A kind of hydraulic and pneumatic transmission teaching aid |
| CN109637335B (en) * | 2018-12-27 | 2022-02-11 | 金肯职业技术学院 | Hydraulic and pneumatic transmission teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PINGGAO ELECTRIC CO., LTD., HENAN Free format text: FORMER OWNER: PINGGAO GROUP CO., LTD. Effective date: 20131204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 467000 PINGDINGSHAN, HENAN PROVINCE TO: 467001 PINGDINGSHAN, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131204 Address after: South East of Pingdingshan city in Henan province 467001 No. 22 Patentee after: Pinggao Electric Co., Ltd., Henan Address before: South East of Pingdingshan city in Henan province 467000 No. 22 Patentee before: Pinggao Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |