CN103586675B - A kind of press-loading device hydraulic system - Google Patents
A kind of press-loading device hydraulic system Download PDFInfo
- Publication number
- CN103586675B CN103586675B CN201310596541.0A CN201310596541A CN103586675B CN 103586675 B CN103586675 B CN 103586675B CN 201310596541 A CN201310596541 A CN 201310596541A CN 103586675 B CN103586675 B CN 103586675B
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- CN
- China
- Prior art keywords
- press
- fit
- valve
- branch road
- loop
- Prior art date
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- 238000005086 pumping Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 38
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of press-loading device hydraulic system, comprise and press-fit loop, support loop and pumping source, press-fiting loop and supporting loop is connected between the fuel-displaced branch road of pumping source and oil return branch road, in the present invention, pumping source adopts constant pressure variable plunger pump, once whole hydraulic system pressure reaches the pressure of need of work, constant pressure variable plunger pump can change swashplate angle automatically, flow vanishing, doing so avoids spill losses; Press-fit loop and superpose electromagnetic throttle valve, charged when press-fiting solenoid directional control valve, press-fit electromagnetic throttle valve charged, press-fit cylinder and press-fit cylinder downstream rate by two unidirectional electromagnetism throttle valve adjustment; When press-fiting solenoid directional control valve dead electricity, press-fiting cylinder and press-fiting speed by press-fiting electromagnetic throttle valve adjustment.Press-loading device downstream rate of the prior art and to press-fit speed be a speed, the present invention program is downstream rate and press-fit speed and carried out arranging respectively, regulates.
Description
Technical field
The invention belongs to technical field of hydraulic equipment, is a kind of press-loading device hydraulic system.
Background technology
Press-loading device hydraulic system on current domestic automobile assembly line, can only arrange one and press-fit speed press-fiting in process, and Speed Setting can produce very large impact to press-fiting product too soon, Speed Setting crosses the production efficiency that will reduce whole production line slowly.In addition, the pressurize of the shoring in hydraulic system generally adopt hydraulic control one-way valve or electromagnet long charged, hydraulic control one-way valve has leakage can not pressurize for a long time, the long charged easy heating of electromagnet and not energy-conservation.
Press-loading device of the prior art, what the downstream rate press-fiting cylinder was whole press mounting system press-fits speed, and actual production has different requirements to both, the excessive velocities that press-fits of press mounting system can to press-fiting the very large impact of product generation, the Speed Setting press-fiting the downstream rate of cylinder crosses the production efficiency that will reduce whole production line slowly, and the present invention program is downstream rate and press-fit speed and carried out arranging respectively, regulates respectively, can ensure to press-fit quality, can enhance productivity again.
Press-fiting in process to ensure in addition, shoring keeps constant support force, the present invention adopt bag type accumulator and support hydraulic control one-way valve carry out pressurize, and arrange support overflow valve carry out pressure protect, prevent support circuit pressure too high.
Summary of the invention
The problem to be solved in the present invention is: need to provide a kind of structure simple, and press-fiting speed can Secondary Control, the hydraulic system of shoring pressure stability.
Technical scheme of the present invention is: a kind of press-loading device hydraulic system, comprises and press-fits loop, support loop and pumping source, press-fits loop and support loop to be connected between the fuel-displaced branch road of pumping source and oil return branch road, wherein
Pumping source comprises fuel tank, constant pressure variable plunger pump and motor, and fuel-displaced branch road is connected fuel tank with oil return branch road, and constant pressure variable plunger pump is arranged on fuel-displaced branch road, and motor drives constant pressure variable plunger pump;
Support loop comprise shoring, bag type accumulator, support solenoid directional control valve and support hydraulic control one-way valve, the fluid of fuel-displaced branch road flows into bag type accumulator and shoring through supporting solenoid directional control valve, and shoring connects oil return branch road through supporting hydraulic control one-way valve;
Press-fit loop to comprise and press-fit cylinder, press-fit solenoid directional control valve, two unidirectional electromagnetic throttle valve, press-fit electromagnetic throttle valve and hydraulic control one-way valve, the fluid of fuel-displaced branch road through press-fiting solenoid directional control valve, hydraulic control one-way valve, press-fit electromagnetic throttle valve, two unidirectional electromagnetic throttle valve flows into and press-fits cylinder epicoele, press-fits cylinder cavity of resorption fluid through two unidirectional electromagnetic throttle valve with press-fit electromagnetic throttle valve and flow back to fuel tank by oil return branch road.
The fuel tank of pumping source is provided with liquid level relay, liquid level thermometer and air filter, fuel-displaced branch road sets gradually oil absorption filter, constant pressure variable plunger pump, fuel-displaced Pressure gauge, oil circuit overflow valve, oil circuit solenoid directional control valve and oil circuit check valve, oil return branch road is provided with return filter and Air cooler.
Support in loop, be provided with before supporting solenoid directional control valve and support pressure-reducing valve and abutment pressure table, be provided with between shoring and support hydraulic control one-way valve and support overflow valve and abutment pressure relay.Described support overflow valve is Superimposed relief valve structure.
Press-fit in loop, be provided with before press-fiting solenoid directional control valve and press-fit pressure-reducing valve and press-fit Pressure gauge.
In the present invention, pumping source adopts constant pressure variable plunger pump, once whole hydraulic system pressure reaches the pressure of need of work, constant pressure variable plunger pump can change swashplate angle automatically, and flow vanishing, doing so avoids spill losses.
In order to realize press-fiting cylinder fast downlink, press mounting system press-fits product low speed, press-fits loop and has superposed electromagnetic throttle valve, charged when press-fiting solenoid directional control valve, press-fit electromagnetic throttle valve charged, press-fit cylinder and press-fit cylinder downstream rate by two unidirectional electromagnetism throttle valve adjustment; In order to improve the efficiency of press mounting system, fast downlink when press-fiting, then low speed press-fits, and when press-fiting electromagnetic throttle valve dead electricity, press-fiting cylinder and press-fiting speed by press-fiting electromagnetic throttle valve adjustment.
Accompanying drawing explanation
Fig. 1 is hydraulic system structure schematic diagram of the present invention.
Fig. 2 is parts action sequence diagram in the present invention.
Fig. 3 is the structural representation that the present invention supports overflow valve.
Detailed description of the invention
As shown in Figure 1, the present invention includes and press-fit loop 300, support loop 200 and pumping source 100, press-fit loop 300 and support loop 200 and be connected between the fuel-displaced branch road of pumping source 100 and oil return branch road, wherein
Pumping source 100 comprises fuel tank 1, constant pressure variable plunger pump 6 and motor 7, and fuel-displaced branch road is connected fuel tank 1 with oil return branch road, and constant pressure variable plunger pump 6 is arranged on fuel-displaced branch road, and motor 7 drives constant pressure variable plunger pump 6; The fuel tank of pumping source is provided with liquid level relay 2, liquid level thermometer 3 and air filter 5, fuel-displaced branch road sets gradually oil absorption filter 4, constant pressure variable plunger pump 6, fuel-displaced Pressure gauge 11.1, oil circuit overflow valve 12, oil circuit solenoid directional control valve 13 and oil circuit check valve 14, oil return branch road is provided with return filter 8 and Air cooler 9.Constant pressure variable plunger pump 6 can set the maximum working pressure of hydraulic system, the effect of oil circuit solenoid directional control valve 13 makes the non-loaded startup of hydraulic system, oil circuit overflow valve 12 can arrange the safe pressure of hydraulic system, the pressure that this safe pressure sets slightly larger than constant pressure variable plunger pump, fuel-displaced Pressure gauge 11.1 shows the pressure of hydraulic system in real time, after oil circuit check valve 14 is arranged on oil circuit overflow valve 12, prevent from fluid from flowing backwards on the one hand to have an impact to constant pressure variable plunger pump 6, if oil circuit check valve 14 breaks down on the other hand, system pressure can through oil circuit overflow valve 12 overflow, ensure safety.
Support loop 200 to comprise shoring, bag type accumulator 15, support solenoid directional control valve 19.1 and support hydraulic control one-way valve 18, the fluid of fuel-displaced branch road flows into bag type accumulator 15 and shoring through supporting solenoid directional control valve 19.1, and shoring connects oil return branch road through supporting hydraulic control one-way valve 18; Further, be provided with before supporting solenoid directional control valve 19.1 and support pressure-reducing valve 17.1 and abutment pressure table 11.2, be provided with between shoring and support hydraulic control one-way valve 18 and support overflow valve 20 and abutment pressure relay 16.Pressure oil enters support solenoid directional control valve 19.1 through supporting pressure-reducing valve 17.1, support solenoid directional control valve 19.1 right electromagnet Y2 charged, pressure oil by supporting the right position of solenoid directional control valve 19.1 to bag type accumulator 15 topping up, and enters shoring cavity of resorption, produces support force.Now support solenoid directional control valve 19.1 right electromagnet Y2 dead electricity, support solenoid directional control valve 19.1 times metas, shoring relies on support hydraulic control one-way valve 18 and bag type accumulator 15 pairs of shorings to carry out pressurize, abutment pressure relay 16 pairs of abutment pressures are monitored in real time, support overflow valve 20 and prevent shoring hypertonia.Press-fit rear support solenoid directional control valve 19.1 left electromagnet Y3 charged, support solenoid directional control valve 19.1 left conductings, pressure oil is opened supporting hydraulic control one-way valve 18 through oil circuit, supports loop pressure release.
Press-fit loop 300 to comprise and press-fit cylinder, press-fit solenoid directional control valve 19.2, two unidirectional electromagnetic throttle valve 21, press-fit electromagnetic throttle valve 22 and hydraulic control one-way valve 23, the fluid of fuel-displaced branch road through press-fiting solenoid directional control valve 19.2, hydraulic control one-way valve 23, press-fit electromagnetic throttle valve 22, two unidirectional electromagnetic throttle valve 21 flows into and press-fits cylinder epicoele, press-fit the two unidirectional electromagnetic throttle valve 21 of cylinder cavity of resorption fluid warp and press-fit electromagnetic throttle valve 22 and flow back to fuel tank 1 by oil return branch road, be provided with before press-fiting solenoid directional control valve 19.2 and press-fit pressure-reducing valve 17.2 and press-fit Pressure gauge 11.3.During work, pressure oil enters press-fit solenoid directional control valve 19.2 through press-fiting pressure-reducing valve 17.2, press-fit solenoid directional control valve 19.2 left electromagnet Y5 charged, the left position of reversal valve, the electromagnet Y6 press-fiting electromagnetic throttle valve 22 is charged, press-fit the left position of electromagnetic throttle valve 22, pressure oil is through hydraulic control one-way valve 23, the unidirectional valve pocket of two unidirectional electromagnetic throttle valves 21, enter and press-fit cylinder epicoele, press-fit solenoid directional control valve 19.2 right electromagnet Y4 charged, press-fit cylinder cavity of resorption fluid through two unidirectional electromagnetic throttle valve 21 throttling chamber, press-fit electromagnetic throttle valve 22 through oil return branch road oil return box 1, press-fit speed to be regulated by two unidirectional electromagnetic throttle valve 21.When press-fiting the electromagnet Y6 dead electricity of electromagnetic throttle valve 22, press-fiting cylinder cavity of resorption fluid not only will through two unidirectional electromagnetic throttle valve 21 throttling chamber, also will through press-fiting electromagnetic throttle valve 22 throttling chamber oil return box, now press-fit speed, main pressured dress electromagnetic throttle valve 22 regulates, and concrete electromagnet sequence of movement table is see Fig. 2.Wherein Y1 ~ Y6 represents the electromagnet that hydraulic valve is different, Y1 is the electromagnet of oil circuit solenoid directional control valve 13, Y2 is for supporting solenoid directional control valve 19.1 right electromagnet, Y3 is for supporting solenoid directional control valve 19.1 left electromagnet, Y4 is for press-fiting solenoid directional control valve 19.2 right electromagnet, Y5 is for press-fiting solenoid directional control valve 19.2 left electromagnet, and Y6 is the electromagnet press-fiting electromagnetic throttle valve 22.
The hydraulic oil of last oil return branch road is through Air cooler 9, and return filter 8 oil return box 1, return filter 8 has bypass circulation, and during filter core blocking, oil return can pass through check valve oil return box.
The support overflow valve 20 that the present invention preferably supports loop is Superimposed relief valve structure, Superimposed relief valve is prior art, no longer describe in detail, its internal structure is fairly simple, it is the combination carried out according to actual condition plug-in mounting overflow valve and safety valve block, as shown in Figure 3, be the Superimposed relief valve structure that a kind of overflow valve 201 forms with overflow valve block 202, this design makes the present invention more convenient when integral valve block is installed.
Claims (5)
1. a press-loading device hydraulic system, it is characterized in that comprising and press-fit loop (300), support loop (200) and pumping source (100), press-fit loop (300) and support between loop (200) the fuel-displaced branch road that is connected to pumping source (100) and oil return branch road, wherein
Pumping source (100) comprises fuel tank (1), constant pressure variable plunger pump (6) and motor (7), fuel-displaced branch road is connected fuel tank (1) with oil return branch road, constant pressure variable plunger pump (6) is arranged on fuel-displaced branch road, and motor (7) drives constant pressure variable plunger pump (6);
Support loop (200) to comprise shoring, bag type accumulator (15), support solenoid directional control valve (19.1) and support hydraulic control one-way valve (18), the fluid of fuel-displaced branch road flows into bag type accumulator (15) and shoring through supporting solenoid directional control valve (19.1), and shoring connects oil return branch road through supporting hydraulic control one-way valve (18);
Press-fit loop (300) to comprise and press-fit cylinder, press-fit solenoid directional control valve (19.2), two unidirectional electromagnetic throttle valve (21), press-fit electromagnetic throttle valve (22) and hydraulic control one-way valve (23), the fluid of fuel-displaced branch road through press-fiting solenoid directional control valve (19.2), hydraulic control one-way valve (23), press-fit electromagnetic throttle valve (22), two unidirectional electromagnetic throttle valve (21) flows into and press-fits cylinder epicoele, press-fits cylinder cavity of resorption fluid through two unidirectional electromagnetic throttle valve (21) with press-fit electromagnetic throttle valve (22) and flow back to fuel tank (1) by oil return branch road.
2. a kind of press-loading device hydraulic system according to claim 1, it is characterized in that the fuel tank of pumping source (100) is provided with liquid level relay (2), liquid level thermometer (3) and air filter (5), fuel-displaced branch road sets gradually oil absorption filter (4), constant pressure variable plunger pump (6), fuel-displaced Pressure gauge (11.1), oil circuit overflow valve (12), oil circuit solenoid directional control valve (13) and oil circuit check valve (14), oil return branch road is provided with return filter (8) and Air cooler (9).
3. a kind of press-loading device hydraulic system according to claim 1, it is characterized in that supporting in loop (200), support front being provided with of solenoid directional control valve (19.1) and support pressure-reducing valve (17.1) and abutment pressure table (11.2), be provided with between shoring and support hydraulic control one-way valve (18) and support overflow valve (20) and abutment pressure relay (16).
4. a kind of press-loading device hydraulic system according to claim 3, is characterized in that described support overflow valve (20) is Superimposed relief valve structure.
5. a kind of press-loading device hydraulic system according to claim 1, it is characterized in that press-fiting in loop (300), press-fit front being provided with of solenoid directional control valve (19.2) and press-fit pressure-reducing valve (17.2) and press-fit Pressure gauge (11.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596541.0A CN103586675B (en) | 2013-11-22 | 2013-11-22 | A kind of press-loading device hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310596541.0A CN103586675B (en) | 2013-11-22 | 2013-11-22 | A kind of press-loading device hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN103586675A CN103586675A (en) | 2014-02-19 |
| CN103586675B true CN103586675B (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310596541.0A Active CN103586675B (en) | 2013-11-22 | 2013-11-22 | A kind of press-loading device hydraulic system |
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| CN (1) | CN103586675B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088863B (en) * | 2014-06-16 | 2017-01-04 | 阜新澳科液压气动设备制造厂 | Single pump dual-speed hydraulic system |
| CN114183415A (en) * | 2021-12-13 | 2022-03-15 | 杭州越达图谱科技有限公司 | Efficient heavy-load press-fitting machine hydraulic system |
| CN117381377B (en) * | 2023-10-30 | 2024-05-24 | 江苏奕隆机电科技有限公司 | ABS hydraulic regulator energy accumulator assembly line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916499A (en) * | 1975-01-09 | 1975-11-04 | Chambersburg Eng Co | Hydraulic bearing mounting press |
| CN2241788Y (en) * | 1995-08-18 | 1996-12-04 | 刘晓军 | Low-noise liquid control system for double cylinder single-purpose pump |
| CN1688820A (en) * | 2002-11-07 | 2005-10-26 | 博世力士乐股份有限公司 | Double-circuit hydraulic system |
| CN201493653U (en) * | 2009-09-11 | 2010-06-02 | 中国石化集团第十建设公司 | Oil cylinder sealing head piston disassembling and assembling machine |
| CN201783807U (en) * | 2010-09-06 | 2011-04-06 | 阜新液压油泵厂 | Automatic hydraulic press-mounting machine |
| CN203579138U (en) * | 2013-11-22 | 2014-05-07 | 南京埃尔法电液技术有限公司 | Press-fitting equipment hydraulic system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107833A (en) * | 1982-12-10 | 1984-06-22 | Hakko Denki Seisakusho:Kk | Monitoring device for forced insertion |
| JP5122906B2 (en) * | 2007-10-11 | 2013-01-16 | 東芝機械株式会社 | Load-sensing hydraulic control system for construction machinery |
-
2013
- 2013-11-22 CN CN201310596541.0A patent/CN103586675B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916499A (en) * | 1975-01-09 | 1975-11-04 | Chambersburg Eng Co | Hydraulic bearing mounting press |
| CN2241788Y (en) * | 1995-08-18 | 1996-12-04 | 刘晓军 | Low-noise liquid control system for double cylinder single-purpose pump |
| CN1688820A (en) * | 2002-11-07 | 2005-10-26 | 博世力士乐股份有限公司 | Double-circuit hydraulic system |
| CN201493653U (en) * | 2009-09-11 | 2010-06-02 | 中国石化集团第十建设公司 | Oil cylinder sealing head piston disassembling and assembling machine |
| CN201783807U (en) * | 2010-09-06 | 2011-04-06 | 阜新液压油泵厂 | Automatic hydraulic press-mounting machine |
| CN203579138U (en) * | 2013-11-22 | 2014-05-07 | 南京埃尔法电液技术有限公司 | Press-fitting equipment hydraulic system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103586675A (en) | 2014-02-19 |
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| SE01 | Entry into force of request for substantive examination | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20151020 Address after: 211100 Jiangning Economic Development Zone, Jiangsu Province, general Avenue, No. 155, No. Applicant after: NANJING ESTUN AUTOMATION Co. Address before: 211102 No. 178 Yan Hu Road, Jiangning Development Zone, Jiangsu, Nanjing, China Applicant before: Nanjing Alpha Electro-hydraulic Technology Co.,Ltd. Applicant before: NANJING ESTUN AUTOMATION Co. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A hydraulic system of pressing equipment Effective date of registration: 20220803 Granted publication date: 20151216 Pledgee: Nanjing Branch of Jiangsu Bank Co.,Ltd. Pledgor: NANJING ESTUN AUTOMATION Co. Registration number: Y2022320000430 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230630 Granted publication date: 20151216 Pledgee: Nanjing Branch of Jiangsu Bank Co.,Ltd. Pledgor: NANJING ESTUN AUTOMATION Co. Registration number: Y2022320000430 |