CN205136185U - Synchronous initiative hydraulic control system of many hydro -cylinders rigidity - Google Patents
Synchronous initiative hydraulic control system of many hydro -cylinders rigidity Download PDFInfo
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- CN205136185U CN205136185U CN201520950091.5U CN201520950091U CN205136185U CN 205136185 U CN205136185 U CN 205136185U CN 201520950091 U CN201520950091 U CN 201520950091U CN 205136185 U CN205136185 U CN 205136185U
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Abstract
The utility model discloses a synchronous initiative hydraulic control system of many hydro -cylinders rigidity for among the hydraulic control system of hydraulic press work crossbeam, every main hydraulic cylinder is connected with a decline synchro -driven major loop, adopts the independent initiative drive of servo pump package and adjusts, every leveling control jar is connected with the synchronous return circuit of a leveling control jar, and the synchronous return circuit of leveling control jar includes the decline passive synchronization compensation oil circuit and the synchro -driven working connection that rises, and the simultaneous error who compensates the leveling control jar through decline passive synchronization compensation oil circuit passively adopts the initiative of servo pump package to drive and adjust the synchronous working of leveling control jar with the synchro -driven working connection that rises, still install grating chi vector control subsystem on the work crossbeam, the utility model discloses the method of passive leveling of useful combination and initiative leveling can further shorten the system response time, through grating chi vector control subsystem, vows quantization control to each hydro -cylinder, can guarantee the reliability of synchro control accuracy and work simultaneously.
Description
Technical field
The utility model relates to a kind of hydraulic system, specifically relates to a kind of Multi-cylinder rigid water hammer initiatively hydraulic control system.
Background technique
Along with the development of machine building industry, the application of the synchronous Drive Control Technique of hydraulic rigid is more and more wider, no matter is metalworking machinery, engineering machinery, or aerospace appts etc., more and more higher to the requirement of rigid water hammer drived control precision.Not only structure is simple for the synchronous drived control of hydraulic rigid, composition is convenient, more easily realize high-power control and the Automated condtrol of hydraulic equipment, usually control for the synchronous driving of some large working platformes of large and medium-sized precision stamping hydraulic press and various main equipment platform and worktable balance in the industry.The balance that the synchronous drived control of hydraulic rigid can not only realize hydraulic press working cross beam controls, more be conducive to the force-bearing situation improving hydraulic press frame, extend the working life of hydraulic press, therefore the application in the industrial production of the synchronous drived control of hydraulic rigid gets more and more.
In Hydraulic Power Transmission System, the application of synchronization control is very general, but the synchronization control of large discharge, highi degree of accuracy, multi-execution component, be the technical issues that need to address in Hydraulic Industry always.Due to the feature such as liquid compression, leakage, damping of hydraulic system, under comparatively large and that year power constantly changes the outward factor of power of carrying especially outside, the high-precise synchronization realizing multiple oil hydraulic cylinder controls there is great difficulty.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of Multi-cylinder rigid water hammer initiatively hydraulic control system, can realize the high-precision synchronization control of multi-hydraulic-cylinder of rigidity parallel connection.
For solving the problems of the technologies described above, the technical solution of the utility model is: Multi-cylinder rigid water hammer is hydraulic control system initiatively, comprise decline and synchronously drive major loop, leveling control cylinder synchronizing circuit and repairing control loop, grating scale vector control subtense angle, in hydraulic control system for hydraulic press working cross beam, the multiple parallel master hydraulic cylinder of vector control and leveling control cylinder synchronous working, each master hydraulic cylinder is connected with a decline and synchronously drives major loop, adopts independently active drive and the adjustment of servopump group; Each leveling control cylinder is connected with a leveling control cylinder synchronizing circuit, described leveling control cylinder synchronizing circuit comprises decline passive and synchronous compensation oil circuit and rising synchronous driving working connection, by the synchronization error of the passive and synchronous compensation oil circuit passive compensation leveling control cylinder that declines, drive working connection to adopt servopump group active drive by rising synchronous and regulate the synchronous working of leveling control cylinder.
As the preferred technological scheme of one, described master hydraulic cylinder quantity can be expanded according to the actual requirements, and when quantity is even number, symmetry is arranged on the upside of working cross beam.
As the preferred technological scheme of one, described master hydraulic cylinder quantity can be expanded according to the actual requirements, and when quantity is odd number, a master hydraulic cylinder is arranged on the neutral position of working cross beam, other master hydraulic cylinders are symmetrical.
As the preferred technological scheme of one, the servopump group that described decline synchronously drives major loop to comprise to be connected with fuel tank, described servopump group is connected with master hydraulic cylinder by one-way valve, otherly between described servopump group and one-way valve is connected to relief valve.
As the preferred technological scheme of one, the passive and synchronous compensation oil circuit of described decline comprises the solenoid-operated proportional sutaining valve be connected with leveling control cylinder, described solenoid-operated proportional sutaining valve is communicated with high pressure filter, described high pressure filter is communicated with two-position three-way electromagnetic Proportional valve, and described two-position three-way electromagnetic Proportional valve is communicated in fuel tank.
As the preferred technological scheme of one, described rising synchronous drives working connection to comprise servopump group, described servopump group oil outlet is connected with one-way valve, described one-way valve is connected with solenoid-operated proportional sutaining valve by an one-way valve, between two described one-way valves, side is connected to electricity liquid ratio relief valve, and described solenoid-operated proportional sutaining valve is communicated with described leveling control cylinder.
As the preferred technological scheme of one, described grating scale vector control subtense angle comprises the left grating scale and right grating scale that are arranged on described working cross beam both sides.
Owing to have employed technique scheme, in the hydraulic control system for hydraulic press working cross beam, control multiple parallel master hydraulic cylinder and leveling control cylinder synchronous working; Each master hydraulic cylinder is connected with a decline and synchronously drives major loop, adopts independently active drive and the adjustment of servopump group; Each leveling control cylinder is connected with a leveling control cylinder synchronizing circuit, described leveling control cylinder synchronizing circuit comprises decline passive and synchronous compensation oil circuit and rising synchronous driving working connection, by the synchronization error of the passive and synchronous compensation oil circuit passive compensation leveling control cylinder that declines, rising synchronous drives working connection to adopt servopump group active drive and regulates the synchronous working of leveling control cylinder; Working cross beam is also provided with grating scale vector control subtense angle; Useful for the method for passive leveling with initiatively leveling, system response time can be shortened further, by information gathering and the feedback of grating scale vector control subtense angle, vector quantization intelligent control is carried out to each oil cylinder, the reliability that synchronization control is accurate and work can be ensured simultaneously; Native system introduces Green design concept, decreases hydraulic element number as much as possible, compact structure, reduces the energy consumption of system works.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the schematic diagram of the utility model embodiment;
Fig. 2 is that the decline of the utility model embodiment synchronously drives major loop schematic diagram;
Fig. 3 is the leveling control cylinder synchronizing circuit schematic diagram of the utility model embodiment;
Fig. 4 is the decline passive and synchronous compensation asphalt principle figure of the utility model embodiment;
Fig. 5 is that the rising synchronous of the utility model embodiment drives working connection schematic diagram;
Fig. 6 is the servopump group schematic diagram of the utility model embodiment;
In figure: 1, 59-fuel tank, 2, 3, 4, 5, 6, 7, 27, 28-servopump group, 8, 9, 10, 11, 12, 13, 24-relief valve, 14, 15, 16, 17, 18, 19, 23, 29, 30, 34, 55-one-way valve, 20-oil purifier, the automatically controlled metering pump group of 21-, 22-pressure gauge, 25, 26-two-position four-way solenoid directional control valve, 31, 57-bi-bit bi-pass electromagnetic proportional valve, 32, 56-high pressure filter, 33, 54-electricity liquid ratio relief valve, 35, 53-solenoid-operated proportional sutaining valve, 36-one-way throttle valve, 37, 52-grating scale, 38, 51-leveling control cylinder, 39, 41, 43, 45, 47, 49-master hydraulic cylinder, 40, 42, 44, 46, 48, 50-Pilot operated check valve, 58-working cross beam.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
As shown in Figure 1, Multi-cylinder rigid water hammer is hydraulic control system initiatively, in hydraulic control system for hydraulic press working cross beam 58, described working cross beam 58 is symmetrically installed with multiple master hydraulic cylinder 39,41,43,45,47,49, each described master hydraulic cylinder is connected with a decline and synchronously drives major loop, each described master hydraulic cylinder 39,41,43,45, be all connected with Pilot operated check valve 40,42,44,46,48,50 between 47,49 and fuel tank 59; Described working cross beam 58 is symmetrically installed with leveling control cylinder 38,51, each described leveling control cylinder 38,51 is connected with a leveling control cylinder synchronizing circuit, and described Pilot operated check valve 40,42,44,46,48,50 is connected with repairing control loop; The both sides of described working cross beam 58 are also provided with grating scale vector control subtense angle.
Described master hydraulic cylinder quantity can be expanded according to the actual requirements, and when its quantity is even number, symmetry is arranged on the upside of working cross beam 58; When quantity is odd number, a master hydraulic cylinder is arranged on the neutral position of working cross beam 58, other master hydraulic cylinders are symmetrical.Be provided with six master hydraulic cylinders in the present embodiment, be respectively master hydraulic cylinder 39,41,43,45,47,49, the balance decline work of the crossbeam 58 that pushes the work forward.
As shown in Figure 2, the servopump group 7 that described decline corresponding to described master hydraulic cylinder 39 synchronously drives major loop to comprise to be connected with fuel tank, described servopump group 7 is connected with master hydraulic cylinder 39 by one-way valve 19, and between described servopump group 7 and one-way valve 19, side is connected to relief valve 13; Decline corresponding to described master hydraulic cylinder 49,47,45,43,41,39 synchronously drives major loop building form identical.The corresponding decline of each master hydraulic cylinder 49,47,45,43,41,39 synchronously drives major loop, independently controlled as power source by servopump group 2,3,4,5,6,7, make the ratio adjustment of fuel delivery according to the position coordinate feedback information of master hydraulic cylinder 49,47,45,43,41,39.
As shown in Figure 3, described leveling control cylinder synchronizing circuit comprises decline passive and synchronous compensation oil circuit and rising synchronous driving working connection; As shown in Figure 4, the passive and synchronous compensation oil circuit of described decline corresponding to leveling control cylinder 51 comprises the solenoid-operated proportional sutaining valve 53 be connected with leveling control cylinder 51, described solenoid-operated proportional sutaining valve 53 is communicated with high pressure filter 56, described high pressure filter 56 is communicated with bi-bit bi-pass electromagnetic proportional valve 57, and described bi-bit bi-pass electromagnetic proportional valve 57 is communicated in fuel tank 1; The building form of the decline passive and synchronous compensation oil circuit corresponding to described leveling control cylinder 38,51 is identical.When described bi-bit bi-pass electromagnetic proportional valve 31,57 is in right position, valve port opening regulates according to control signal, and the passive flow regulating the passive and synchronous compensation oil circuit that declines, compensates the synchronization error between leveling control cylinder 38,51; When being in left position, loop disconnects, bi-bit bi-pass electromagnetic proportional valve 31,57 zero leakage state.
As shown in Figure 5, described rising synchronous corresponding to described leveling control cylinder 51 drives working connection to comprise servopump group 28, described servopump group 28 is connected with solenoid-operated proportional sutaining valve 53 by two one-way valves 30,55, described solenoid-operated proportional sutaining valve 53 is communicated with described leveling control cylinder 51, and between two described one-way valves 30,55, side is connected to electricity liquid ratio relief valve 54.Rising synchronous corresponding to described leveling control cylinder 38,51 drives the building form of working connection identical.Described servopump group 27,28, as power source, according to the position coordinate feedback information initiatively independent regulation fuel supply flow rate of leveling control cylinder 38,51, controls the synchronous working between each leveling control cylinder 38,51.The hydraulic oil that described servopump group 27,28 drives flows through solenoid-operated proportional and supports one-way valve in 35,53 to drive leveling control cylinder 38,51.
As shown in Figure 6, described decline synchronously drives major loop and rising synchronous to drive the servopump group 2,3,4,5,6,7,27,28 adopted in working connection to be made up of actuating motor and metering pump.
Described leveling control cylinder synchronizing circuit is provided with solenoid-operated proportional sutaining valve 35,53, and described solenoid-operated proportional sutaining valve 35,53, according to the back pressure of system load electromagnetic valve for adjusting, keeps its oil outlet to have stable low oil pressure.
Described repairing control loop comprises automatically controlled metering pump group 21, described automatically controlled metering pump group 21 is connected with two-position four-way solenoid directional control valve 25 by one-way valve 23, described two-position four-way solenoid directional control valve 25 is connected with one-way throttle valve 36, and the output terminal of described one-way throttle valve 36 is connected with the control port of described Pilot operated check valve 40,42,44,46,48,50; Between described one-way valve 23 and described two-position four-way solenoid directional control valve 25, side is connected to relief valve 24 and two-position four-way solenoid directional control valve 26.Described repairing control loop is by automatically controlled metering pump group 21 fuel feeding, the connected state of Pilot operated check valve 40,42,44,46,48,50 is controlled, to control repairing and the oil extraction of described master hydraulic cylinder 39,41,43,45,47,49 by two-position four-way solenoid directional control valve 25.
Described grating scale vector control subtense angle comprises and is arranged on left grating scale 52 on described working cross beam 58 and right grating scale 37, described left grating scale 52 and right grating scale 37 pairs of all hydraulic cylinders carry out location parameter collection, algorithm through presetting processes parameter, for servopump group and the bi-bit bi-pass electromagnetic proportional valve declined in passive and synchronous compensation oil circuit provide vector control parameter, the vector quantization realizing system controls.
See Fig. 1, working principle of the present utility model is:
When working cross beam 58 works, the location coordinate information of the left grating scale 52 of grating scale vector control subtense angle, right grating scale 37 pairs of hydraulic jacks gathers, and control system provides controling parameters by the vector control algorithm preset for servopump group 2,3,4,5,6,7,27,28 and bi-bit bi-pass electromagnetic proportional valve 31,57.
Working cross beam 58 declines work: when working cross beam 58 declines fast, decline fast under the effect of himself gravity, master hydraulic cylinder 39,41,43,45,47,49 by Pilot operated check valve 40,42,44,46,48,50 from fuel tank 59 replenisher force feed.During working cross beam 58 descending at slow speed, described each decline synchronously drives major loop to pass through its servopump group and drives master hydraulic cylinder 49,47,45,43,41,39 synchronous working, the crossbeam 58 that pushes the work forward declines work, servopump group 2,3,4,5,6,7 is according to the position feedback information of corresponding master hydraulic cylinder, independently make the adjustment of fuel delivery, control the synchronous working of described multiple master hydraulic cylinder.
Meanwhile, solenoid-operated proportional sutaining valve 35,53 keeps its oil outlet to be low oil pressure, bi-bit bi-pass electromagnetic proportional valve 31,57 is in right position, the hydraulic oil of leveling control cylinder 38,51 flows into fuel tank by the passive and synchronous compensation oil circuit that declines, in the process, bi-bit bi-pass electromagnetic proportional valve 31,57 with position sensor regulates valve port opening in real time according to the control signal of control system, the synchronous working of passive adjustment leveling control cylinder 38,51.
Working cross beam 58 rise work time: repairing control loop controls Pilot operated check valve 40,42,44,46,48,50 and opens and to two-way circulate state, and master hydraulic cylinder 39,41,43,45,47,49 oil extraction is to fuel tank 59.Described servopump group 27,28 drives hydraulic oil to drive working connection to enter leveling control cylinder 38,51 through rising synchronous, realizes the quick rising of working cross beam 58.In uphill process, feedback control parameters ACTIVE CONTROL leveling control cylinder 38,51 synchronous working according to control system of servopump group 27,28.Bi-bit bi-pass electromagnetic proportional valve 31,57 is in left position, is in zero leakage state.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. Multi-cylinder rigid water hammer initiatively hydraulic control system, it is characterized in that: comprise decline and synchronously drive major loop, leveling control cylinder synchronizing circuit and repairing control loop, grating scale vector control subtense angle, in hydraulic control system for hydraulic press working cross beam, the multiple parallel master hydraulic cylinder of vector control and leveling control cylinder synchronous working, each master hydraulic cylinder is connected with a decline and synchronously drives major loop, adopts independently active drive and the adjustment of servopump group; Each leveling control cylinder is connected with a leveling control cylinder synchronizing circuit, described leveling control cylinder synchronizing circuit comprises decline passive and synchronous compensation oil circuit and rising synchronous driving working connection, by the synchronization error of the passive and synchronous compensation oil circuit passive compensation leveling control cylinder that declines, drive working connection to adopt servopump group active drive by rising synchronous and regulate the synchronous working of leveling control cylinder.
2. Multi-cylinder rigid water hammer as claimed in claim 1 initiatively hydraulic control system, is characterized in that: described master hydraulic cylinder quantity can be expanded according to the actual requirements, and when quantity is even number, symmetry is arranged on the upside of working cross beam.
3. Multi-cylinder rigid water hammer as claimed in claim 1 initiatively hydraulic control system, it is characterized in that: described master hydraulic cylinder quantity can be expanded according to the actual requirements, when quantity is odd number, a master hydraulic cylinder is arranged on the neutral position of working cross beam, other master hydraulic cylinders are symmetrical.
4. Multi-cylinder rigid water hammer as claimed in claim 1 initiatively hydraulic control system, it is characterized in that: the servopump group that described decline synchronously drives major loop to comprise to be connected with fuel tank, described servopump group is connected with master hydraulic cylinder by one-way valve, and between described servopump group and one-way valve, side is connected to relief valve.
5. Multi-cylinder rigid water hammer as claimed in claim 1 initiatively hydraulic control system, it is characterized in that: the passive and synchronous compensation oil circuit of described decline comprises the solenoid-operated proportional sutaining valve be connected with leveling control cylinder, described solenoid-operated proportional sutaining valve is communicated with high pressure filter, described high pressure filter is communicated with two-position three-way electromagnetic Proportional valve, and described two-position three-way electromagnetic Proportional valve is communicated in fuel tank.
6. Multi-cylinder rigid water hammer as claimed in claim 1 initiatively hydraulic control system, it is characterized in that: described rising synchronous drives working connection to comprise servopump group, described servopump group oil outlet is connected with one-way valve, described one-way valve is connected with solenoid-operated proportional sutaining valve by an one-way valve, between two described one-way valves, side is connected to electricity liquid ratio relief valve, and described solenoid-operated proportional sutaining valve is communicated with described leveling control cylinder.
7. the Multi-cylinder rigid water hammer as described in claim as arbitrary in claim 1 to 6 is hydraulic control system initiatively, it is characterized in that: described grating scale vector control subtense angle comprises the left grating scale and right grating scale that are arranged on described working cross beam both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520950091.5U CN205136185U (en) | 2015-11-25 | 2015-11-25 | Synchronous initiative hydraulic control system of many hydro -cylinders rigidity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520950091.5U CN205136185U (en) | 2015-11-25 | 2015-11-25 | Synchronous initiative hydraulic control system of many hydro -cylinders rigidity |
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| CN205136185U true CN205136185U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520950091.5U Withdrawn - After Issue CN205136185U (en) | 2015-11-25 | 2015-11-25 | Synchronous initiative hydraulic control system of many hydro -cylinders rigidity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351267A (en) * | 2015-11-25 | 2016-02-24 | 日照海卓液压有限公司 | Multi-oil-cylinder vector control rigid active synchronous hydraulic system |
| CN109424594A (en) * | 2017-09-01 | 2019-03-05 | 无锡福艾德自动化科技有限公司 | A kind of Multi-cylinder control hydraulic system for wire stripper |
| CN110848189A (en) * | 2019-11-18 | 2020-02-28 | 北京特种机械研究所 | Hydraulic synchronous control method for multiple two-stage cylinders |
-
2015
- 2015-11-25 CN CN201520950091.5U patent/CN205136185U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351267A (en) * | 2015-11-25 | 2016-02-24 | 日照海卓液压有限公司 | Multi-oil-cylinder vector control rigid active synchronous hydraulic system |
| CN109424594A (en) * | 2017-09-01 | 2019-03-05 | 无锡福艾德自动化科技有限公司 | A kind of Multi-cylinder control hydraulic system for wire stripper |
| CN110848189A (en) * | 2019-11-18 | 2020-02-28 | 北京特种机械研究所 | Hydraulic synchronous control method for multiple two-stage cylinders |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20170329 |
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| AV01 | Patent right actively abandoned |