CN101943238B - Double-overflow hydraulic damper - Google Patents
Double-overflow hydraulic damper Download PDFInfo
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- CN101943238B CN101943238B CN201010274960A CN201010274960A CN101943238B CN 101943238 B CN101943238 B CN 101943238B CN 201010274960 A CN201010274960 A CN 201010274960A CN 201010274960 A CN201010274960 A CN 201010274960A CN 101943238 B CN101943238 B CN 101943238B
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- end cap
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- hydraulic jack
- piston
- way valve
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Abstract
The invention discloses a double-overflow hydraulic damper, comprising a hydraulic cylinder, a first piston rod, a second piston rod, a piston, a left end cover, a right end cover and an oil tank, wherein the left end cover is provided with a first check valve and a first overflow valve; the right end cover is provided with a second check valve and a second overflow valve; the oil tank is arranged outside the hydraulic cylinder and is connected with the left end cover and the right end cover respectively by an oil pipe; the outlet of the first check valve and the inlet of the first overflow valve are communicated with a first working cavity of the hydraulic cylinder; the inlet of the first check valve and the outlet of the first overflow valve are communicated with the oil tank; the outlet of the second check valve and the inlet of the second overflow valve are communicated with a second working cavity of the hydraulic cylinder; the inlet of the second check valve and the outlet of the second overflow valve are communicated with the oil tank; and the inlet of the first check valve is communicated with the inlet of the second check valve. The hydraulic damper is convenient to process and can ensure the stability of the working load.
Description
Technical field
The present invention relates to a kind of damper, especially a kind of hydraulic damper.
Background technique
At present, hydraulic damper applies to bridge, building and other fields widely, improves constantly along with what antidetonation such as bridge, building and damping required; The market demand to hydraulic damper also constantly increases thereupon, and the performance requirement to hydraulic damper also can progressively improve simultaneously, and its working principle is: left assembly department and right assembly department are two mounting points of hydraulic damper; They are installed on two has on the object or building structure that relative movement maybe possibly produce relative movement; When left assembly department is fixed, when right assembly department produced relative movement, the fluid in hydraulic damper first active chamber, second active chamber, two chambeies was realized flowing each other through the damping hole that is installed on the piston; And produce certain damping force; Consume both kinergeties, because the size of its damping force is relevant with many factors such as size, shape and movement velocity of damping hole, this has brought very big difficulty just for the design and the manufacturing of hydraulic damper; In addition, the size of movement velocity can directly influence the size of damping force.So; Have only at present through obtaining the damping force of hydraulic damper under certain speed and the comparison proper data of energy consumption after testing apparatus test special use, expensive; Therefore the design and the difficulty of processing of hydraulic damper are big, and can not guarantee the stability of damping force.
Summary of the invention
The object of the present invention is to provide a kind of processing of being convenient to, can guarantee the double overflow hydraulic damper of the stability of work loads.
In order to achieve the above object, first kind of technological scheme of the present invention's employing is: a kind of double overflow hydraulic damper comprises hydraulic jack, first piston bar, second piston rod, piston, left end cap, right end cap and fuel tank; The first piston bar and second piston rod all are fixedly connected on the piston, and are positioned at hydraulic jack, and piston can slippage in hydraulic jack; Left end cap is fixedly connected on the left side of hydraulic jack; Right end cap is fixedly connected on the right side of hydraulic jack, and piston is divided into first active chamber and second active chamber to hydraulic jack, and the outside of right end cap also has the piston rod accommodating cylinder; One end of second piston rod passes second active chamber of hydraulic jack; And stretch in the piston rod accommodating cylinder, an end of second piston rod passes the piston hole of the right end cap of hydraulic jack, and stretches in the piston rod accommodating cylinder; One end of first piston bar passes the piston hole of the left end cap of hydraulic jack; And the end is fixedly connected with first assembly department, and the right-hand member of piston rod accommodating cylinder is fixedly connected with second assembly department, and first one-way valve and first relief valve are housed on the left end cap; Second one-way valve and second relief valve are housed on the right end cap; Hydraulic jack also is provided with fuel tank outward, and fuel tank is connected with right end cap with left end cap respectively through oil pipe; The import of the outlet of first one-way valve and first relief valve all is communicated with first active chamber of hydraulic jack, and the outlet of the import of first one-way valve and first relief valve all is communicated with fuel tank; The import of the outlet of second one-way valve and second relief valve all is communicated with second active chamber of hydraulic jack, and the outlet of the import of second one-way valve and second relief valve all is communicated with fuel tank; The import of the import of first one-way valve and second one-way valve is interconnected.
Has first annular groove in the piston hole of said left end cap; Also have the first-class through hole and second intercommunicating pore on the left end cap; First active chamber of hydraulic jack is communicated with first annular groove; First annular groove is communicated with first-class through hole, and an end of first one-way valve and first relief valve all is communicated with first-class through hole, and the other end all is communicated with second intercommunicating pore; Has second annular groove in the piston hole of said right end cap; Also have the 3rd opening and the 4th opening on the right end cap; Second active chamber of hydraulic jack is communicated with second annular groove; Second annular groove is communicated with the 3rd opening, and an end of second one-way valve and second relief valve all is communicated with the 3rd opening, equal the 4th opening of the other end be communicated with.
First one-way valve on the said left end cap and first relief valve are communicated with fuel tank through first-class siphunculus; Second one-way valve on the right end cap and second relief valve are communicated with fuel tank through second runner pipe, and second intercommunicating pore on the left end cap is communicated with through second runner pipe with the 4th opening on the right end cap.
Said left end cap is fixedly connected with hydraulic jack through screw with right end cap, and the piston rod accommodating cylinder is fixedly connected with right end cap through screw.
After adopting said structure, owing on the left end cap first one-way valve and first relief valve are housed; Second one-way valve and second relief valve are housed on the right end cap; Hydraulic jack also is provided with fuel tank outward; Fuel tank is connected with right end cap with left end cap respectively through oil pipe; The import of the outlet of first one-way valve and first relief valve all is communicated with first active chamber of hydraulic jack; The outlet of the import of first one-way valve and first relief valve all is communicated with fuel tank, and the import of the outlet of second one-way valve and second relief valve all is communicated with second active chamber of hydraulic jack, and the outlet of the import of second one-way valve and second relief valve all is communicated with fuel tank; The import of the import of first one-way valve and second one-way valve is interconnected, therefore, set cracking pressure for first, second relief valve after; Oil pressure under high loading in first active chamber or second active chamber reaches the cracking pressure that relief valve is set; The oil of first active chamber and second active chamber just can be realized convection current through relief valve with constant resistance, realizes limit for tonnage power consumption and damping energy dissipation, thereby need not on piston, to make damping hole; Thereby reduced design difficulty, be convenient to processing; Again because the cracking pressure of the setting of relief valve is certain, thereby guaranteed the stability of damping force.
Description of drawings
The embodiment who provides below in conjunction with accompanying drawing does explanation in further detail to the present invention.
Fig. 1 is a structure sectional view of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is a schematic diagram of the present invention.
Embodiment
Like Fig. 1,2,3,4, shown in 5, a kind of double overflow hydraulic damper comprises hydraulic jack 1, first piston bar 2, second piston rod 2 ', piston 3, left end cap 4, right end cap 5 and fuel tank 6; The first piston bar 2 and second piston rod 2 ' all are fixedly connected on the piston 3, and are positioned at hydraulic jack 1, and piston 3 can slippage in hydraulic jack 1; Left end cap 4 is fixedly connected on the left side of hydraulic jack 1; Right end cap 5 is fixedly connected on the right side of hydraulic jack 1, and piston 3 is divided into the first active chamber 1-1 and the second active chamber 1-2 to hydraulic jack 1, and the outside of right end cap 5 also has piston rod accommodating cylinder 7; One end of second piston rod 2 ' passes the piston hole of the right end cap 5 of hydraulic jack 1; And stretch in the piston rod accommodating cylinder 7, an end of first piston bar 2 passes the piston hole of the left end cap 4 of hydraulic jack 1, and the end is fixedly connected with first assembly department 8; The right-hand member of piston rod accommodating cylinder 7 is fixedly connected with second assembly department 9, and first one-way valve 10 and first relief valve 13 are housed on the left end cap 4; Second one-way valve 11 and second relief valve 14 are housed on the right end cap 5; The hydraulic jack 1 outer fuel tank 6 that also is provided with, fuel tank 6 is connected with right end cap 5 with left end cap 4 respectively through oil pipe; The import of the outlet of first one-way valve 10 and first relief valve 13 all is communicated with the first active chamber 1-1 of hydraulic jack 1, and the outlet of the import of first one-way valve 10 and first relief valve 13 all is communicated with fuel tank 6; The import of the outlet of second one-way valve 11 and second relief valve 14 all is communicated with the second active chamber 1-2 of hydraulic jack 1, and the outlet of the import of second one-way valve 11 and second relief valve 14 all is communicated with fuel tank 6; The import of the import of first one-way valve 10 and second one-way valve 11 is interconnected.
Like Fig. 1,3, shown in 4; For rational in infrastructure, be convenient to processing, have the first annular groove 4-1 in the piston hole of said left end cap 4, also have the first-class through hole 4-2 and the second intercommunicating pore 4-3 on the left end cap 4; The first active chamber 1-1 of hydraulic jack 1 is communicated with the first annular groove 4-1; The first annular groove 4-1 is communicated with first-class through hole 4-2, and an end of first one-way valve 10 and first relief valve 13 all is communicated with first-class through hole 4-2, and the other end all is communicated with the second intercommunicating pore 4-3; Has the second annular groove 5-1 in the piston hole of said right end cap 5; Also have the 3rd opening 5-2 and the 4th opening 5-3 on the right end cap 5; The second active chamber 1-2 of hydraulic jack 1 is communicated with the second annular groove 5-1; The second annular groove 5-1 is communicated with the 3rd opening 5-2, and an end of second one-way valve 11 and second relief valve 14 all is communicated with the 3rd opening 5-2, equal the 4th opening 5-3 of the other end be communicated with.
Like Fig. 1,2,3, shown in 4; In order to make more reasonable structure, compactness; First one-way valve 10 on the said left end cap 4 and first relief valve 13 are communicated with fuel tank 6 through first-class siphunculus 15; Second one-way valve 11 on the right end cap 5 and second relief valve 14 are communicated with fuel tank 6 through second runner pipe 16, and the second intercommunicating pore 4-3 on the left end cap 4 is communicated with through second runner pipe 17 with the 4th opening 5-3 on the right end cap 5.
As shown in Figure 1, for the ease of processing and assembling, said left end cap 4 is fixedly connected with hydraulic jack 1 through screw 19 with right end cap 5, and piston rod accommodating cylinder 7 is fixedly connected with right end cap 5 through screw 19.
Like Fig. 1, shown in 5; When the present invention uses; First assembly department 8 and second assembly department 9 are separately fixed on two objects or building that can produce relative movement, and second assembly department 9 has certain function power to the right, when the oil pressure that forms at the first active chamber 1-1 when this active force reaches the cracking pressure that first relief valve 13 sets; The fluid of the first active chamber 1-1 just can be through first relief valve 13, second one-way valve 11 of flowing through again; Get back to the second active chamber 1-2, second assembly department 9 will move right under the effect of certain resistance, and the product of this resistance and move distance is the energy of hydraulic damper consumption when moving right.Equally; Under the situation that first assembly department 8 is fixed; Second assembly department 9 has certain function power left; When the oil pressure that forms at the second active chamber 1-2 when this active force reached the cracking pressure that second relief valve 14 sets, the fluid of the second active chamber 1-2 just can pass through second relief valve 14, and first one-way valve 10 of flowing through is again got back to the first active chamber 1-1; Second assembly department 9 will be to left movement under the effect of certain resistance, and the product of this resistance and move distance is the energy that this hydraulic damper consumes when left movement; Because the cracking pressure that first relief valve 13, second relief valve 14 are set is certain, between first assembly department 8 and second assembly department 9 speed of related movement one regularly, the power that this hydraulic damper consumed is certain.Fuel tank 6 can absorb or discharge fluid, eliminates the influence of ambient temperature to this hydraulic damper body interior fluid change in volume.
Claims (4)
1. double overflow hydraulic damper; Comprise hydraulic jack (1), first piston bar (2), second piston rod (2 '), piston (3), left end cap (4), right end cap (5) and fuel tank (6); The first piston bar (2) and second piston rod (2 ') all are fixedly connected on the piston (3), and piston (3) is positioned at hydraulic jack (1), and piston (3) can slippage in hydraulic jack (1); Left end cap (4) is fixedly connected on the left side of hydraulic jack (1); Right end cap (5) is fixedly connected on the right side of hydraulic jack (1), and piston (3) is divided into first active chamber (1-1) and second active chamber (1-2) to hydraulic jack (1), and the outside of right end cap (5) also has piston rod accommodating cylinder (7); One end of second piston rod (2 ') passes the piston hole of the right end cap (5) of hydraulic jack (1); And stretch in the piston rod accommodating cylinder (7), an end of first piston bar (2) passes the piston hole of the left end cap (4) of hydraulic jack (1), and the end is fixedly connected with first assembly department (8); The right-hand member of piston rod accommodating cylinder (7) is fixedly connected with second assembly department (9), it is characterized in that:
First one-way valve (10) and first relief valve (13) are housed on a, the left end cap (4);
Second one-way valve (11) and second relief valve (14) are housed on b, the right end cap (5);
C, the outer fuel tank (6) that also is provided with of hydraulic jack (1), fuel tank (6) is connected with right end cap (5) with left end cap (4) respectively through oil pipe;
The import of the outlet of d, first one-way valve (10) and first relief valve (13) all is communicated with first active chamber (1-1) of hydraulic jack (1), and the outlet of the import of first one-way valve (10) and first relief valve (13) all is communicated with fuel tank (6);
The import of the outlet of e, second one-way valve (11) and second relief valve (14) all is communicated with second active chamber (1-2) of hydraulic jack (1), and the outlet of the import of second one-way valve (11) and second relief valve (14) all is communicated with fuel tank (6);
The import of the import of f, first one-way valve (10) and second one-way valve (11) is interconnected.
2. double overflow hydraulic damper according to claim 1; It is characterized in that: have first annular groove (4-1) in the piston hole of said left end cap (4); Also have first-class through hole (4-2) and second intercommunicating pore (4-3) on the left end cap (4); First active chamber (1-1) of hydraulic jack (1) is communicated with first annular groove (4-1); First annular groove (4-1) is communicated with first-class through hole (4-2), and an end of first one-way valve (10) and first relief valve (13) all is communicated with first-class through hole (4-2), and the other end all is communicated with second intercommunicating pore (4-3); Has second annular groove (5-1) in the piston hole of said right end cap (5); Also have the 3rd opening (5-2) and the 4th opening (5-3) on the right end cap (5); Second active chamber (1-2) of hydraulic jack (1) is communicated with second annular groove (5-1); Second annular groove (5-1) is communicated with the 3rd opening (5-2), and an end of second one-way valve (11) and second relief valve (14) all is communicated with the 3rd opening (5-2), equal the 4th opening of the other end (5-3) be communicated with.
3. double overflow hydraulic damper according to claim 2; It is characterized in that: first one-way valve (10) on the said left end cap (4) and first relief valve (13) are communicated with fuel tank (6) through first-class siphunculus (15); Second one-way valve (11) on the right end cap (5) and second relief valve (14) are communicated with fuel tank (6) through second runner pipe (16), and second intercommunicating pore (4-3) on the left end cap (4) is communicated with through second runner pipe (17) with the 4th opening (5-3) on the right end cap (5).
4. double overflow hydraulic damper according to claim 1 is characterized in that: said left end cap (4) is fixedly connected with hydraulic jack (1) through screw (19) with right end cap (5), and piston rod accommodating cylinder (7) is fixedly connected with right end cap (5) through screw (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010274960A CN101943238B (en) | 2010-09-08 | 2010-09-08 | Double-overflow hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010274960A CN101943238B (en) | 2010-09-08 | 2010-09-08 | Double-overflow hydraulic damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943238A CN101943238A (en) | 2011-01-12 |
| CN101943238B true CN101943238B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010274960A Active CN101943238B (en) | 2010-09-08 | 2010-09-08 | Double-overflow hydraulic damper |
Country Status (1)
| Country | Link |
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| CN (1) | CN101943238B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537179B (en) * | 2012-01-20 | 2014-03-12 | 河海大学常州校区 | Master control hydraulic damper |
| CN102537174B (en) * | 2012-02-10 | 2014-06-11 | 河海大学常州校区 | Overflow constant-load hydraulic rotary damper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2171035Y (en) * | 1993-07-05 | 1994-07-06 | 王杰 | Hydraulic buffer |
| DE202007013300U1 (en) * | 2007-09-21 | 2009-02-12 | Liebherr-Aerospace Lindenberg Gmbh | Active hydraulic damper and hydraulic actuator |
| CN201310595Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Hydraulic damping device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000046095A (en) * | 1998-07-28 | 2000-02-15 | Tokico Ltd | Hydraulic shock absorber |
| US7441638B2 (en) * | 2004-12-09 | 2008-10-28 | Kayaba Industry Co., Ltd. | Front fork |
-
2010
- 2010-09-08 CN CN201010274960A patent/CN101943238B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2171035Y (en) * | 1993-07-05 | 1994-07-06 | 王杰 | Hydraulic buffer |
| DE202007013300U1 (en) * | 2007-09-21 | 2009-02-12 | Liebherr-Aerospace Lindenberg Gmbh | Active hydraulic damper and hydraulic actuator |
| CN201310595Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Hydraulic damping device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-46095A 2000.02.15 |
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| CN101943238A (en) | 2011-01-12 |
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Inventor after: Qian Xuesong Inventor after: Qian Zifan Inventor before: Qian Xuesong |
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Free format text: CORRECT: INVENTOR; FROM: QIAN XUESONG TO: QIAN XUESONG QIAN ZIFAN |
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Effective date of registration: 20151106 Address after: 213000, Changzhou District, Jiangsu City, Wujin province Hengshan bridge Hengshan town industrial concentration area Patentee after: GELIN (CHANGZHOU) ELECTRICAL POWER MACHINE-BUILDING CO.,LTD. Address before: 213022 Jiangsu, North District, Changzhou Jin Ling North Road, No. 200 Patentee before: CHANGZHOU CAMPUS OF HOHAI University |