CN202468522U - Hydraulic system for digital hydraulic cylinder - Google Patents
Hydraulic system for digital hydraulic cylinder Download PDFInfo
- Publication number
- CN202468522U CN202468522U CN2012200942292U CN201220094229U CN202468522U CN 202468522 U CN202468522 U CN 202468522U CN 2012200942292 U CN2012200942292 U CN 2012200942292U CN 201220094229 U CN201220094229 U CN 201220094229U CN 202468522 U CN202468522 U CN 202468522U
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- Prior art keywords
- plunger
- chamber
- cylinder
- hydraulic
- piston
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Abstract
The utility model belongs to the technical field of digital hydraulic cylinders, and discloses a hydraulic system for a digital hydraulic cylinder, which comprises a cylinder chamber, wherein a piston, which separates the cylinder chamber into a left cylinder chamber and a right cylinder chamber, is arranged in the cylinder chamber; and the piston is evenly distributed with two sets of small plungers which are in opposite directions and can implement hydraulic function. The utility model has the advantages of compact structure, small size, high precision and the like, and is convenient to maintain and simple to control.
Description
Technical field
The utility model relates to a kind of technical field of hydraulic press, particularly a kind of hydraulic system of digital oil hydraulic cylinder.
Background technique
Oil hydraulic cylinder is the executive component that hydraulic system is the most generally used, and it is the device that hydraulic pressure can be converted into mechanical energy, specifically is can convert hydraulic pressure into reciprocal straight line motion, ouput force and speed.At present; The numeral research of Hydraulic Field mainly is the research of Direct Digital control valve both at home and abroad; And mainly contain two kinds to digital oil hydraulic cylinder: a kind of is the internal feedback numeral oil hydraulic cylinder that can export numeral or analogue signal, and another kind is to use the open loop control figure oil hydraulic cylinder of Digital Signals movement velocity and displacement.Though they possess flow regulating function, still need the conventional hydraulic energy source device could form complete hydraulic system.Existing digital oil hydraulic cylinder can not to system temperature, pressure load, in let out and factor such as dead band compensates the influence that speed and displacement cause.
The model utility content
To above-mentioned technological deficiency, the technical problem that the utility model will solve provides a kind of compact structure, volume is little, easy to maintenance, control is simple and the hydraulic system of the digital oil hydraulic cylinder that precision is good.
The technological scheme that realizes the utility model is: a kind of hydraulic system of digital oil hydraulic cylinder; Comprise cylinder chamber; Be provided with the piston that cylinder chamber is divided into chamber, a cylinder body left side and the right chamber of cylinder body in the cylinder chamber, on piston, be evenly equipped with two prescriptions on the contrary and can realize the small plunger of hydraulic function.
Further: in the hydraulic system of above-mentioned digital oil hydraulic cylinder; Described small plunger comprises plunger cavity; In plunger cavity, be provided with the plunger piston that plunger cavity is divided into plunger chamber, a left side and the right chamber of plunger; The plunger piston is connected with electromagnet through plunger connecting rod, on the plunger piston, is provided with to prevent the cancel each other type of the carving baffle plate of power of two groups of small plungers in the opposite direction.Described electromagnet is connected with digital processing unit DSP.Described hydraulic system precision is 0.02mm.
Compared with prior art, the hydraulic system of above-mentioned digital oil hydraulic cylinder comprises the cylinder chamber, is provided with the piston that cylinder chamber is divided into chamber, a cylinder body left side and the right chamber of cylinder body in the cylinder chamber, on piston, is evenly equipped with two prescriptions on the contrary and can realize the small plunger of hydraulic function.When electromagnet energising acting, hydraulic oil flows into the right chamber of cylinder body or flows into chamber, a cylinder body left side from the right chamber of the cylinder body of oil hydraulic cylinder through the chamber, a cylinder body left side of small plunger from oil hydraulic cylinder, thereby drives the oil hydraulic cylinder acting.Whole hydraulic system need not extra oil hydraulic pump and hydraulic circuit, hydraulic oil when acting flow process short, make liquid when flowing viscous friction produced reduces much along the stroke pressure loss; Hydraulic system structure is simple, makes hydraulic oil flow through the number of times of the local device such as elbow, pipe joint, abrupt-change cross section and valve port of pipeline seldom, makes the local pressure loss of oil hydraulic cylinder in the acting process also seldom.In control, control the motion of oil hydraulic cylinder through the break-make electricity of DSP control electromagnet.Owing to two prescriptions are arranged in oil hydraulic cylinder to opposite small plunger, through work group on the control plunger, just can control the operative orientation of oil hydraulic cylinder, also saved directional control valve.
So the utility model and existing technology relatively have following advantage:
(1) the digital oil hydraulic cylinder of interior circulation of using the system of pressure system of the utility model adopts unique design, and the integrated nearly all function of Hydraulic power units, executive component and control unit has advantages such as compact structure, volume is little, easy to maintenance, control is simple.(2) utilize digital pulse, directly control direction, speed and the displacement of oil hydraulic cylinder.Under the operating conditions of maximum load, the oil suction of small plunger and oil extraction process can be accomplished in 5ms, and the control accuracy of system is 0.02mm.(3) this system can realize various motion cycle processes under the machinery and the cooperation of electromagnetism, will bring brand-new vigor for hydraulics and control technique.
Description of drawings
Fig. 1 dissects structure diagram for the utility model hydraulic system,
Fig. 2 dissects structure diagram for small plunger,
Wherein chamber, 1 a cylinder body left side, the right chamber of 2 cylinder bodies, 3 pistons, 4 small plungers, chamber, 5 a plungers left side, the right chamber of 6 plungers, 7 plunger pistons, 8 plunger connecting rods, 9 electromagnet, 10 are carved type baffle plate, 11 one-way valves
Embodiment
For the ease of those skilled in the art's understanding, the utility model sky spring is further specified below in conjunction with accompanying drawing and embodiment:
Shown in accompanying drawing 1-2, a kind of hydraulic system of digital oil hydraulic cylinder comprises cylinder chamber, is provided with the piston 3 that cylinder chamber is divided into chamber, a cylinder body left side 1 and the right chamber 2 of cylinder body in the cylinder chamber, on piston 3, is evenly equipped with two prescriptions to opposite and can realize the small plunger 4 of hydraulic function.Described small plunger 4 comprises plunger cavity; In plunger cavity, be provided with the plunger piston 7 that plunger cavity is divided into chamber 5, a plunger left side and the right chamber 6 of plunger; Plunger piston 7 is connected with electromagnet 9 through plunger connecting rod 8, on plunger piston 7, is provided with to prevent the cancel each other type of the carving baffle plate 10 of power of two groups of small plungers in the opposite direction.Described electromagnet is connected with digital processing unit DSP.Described hydraulic system precision is 0.02mm.
Like accompanying drawing 1: when electromagnet energising acting, hydraulic oil flows into the right chamber 2 of cylinder body or flows into chamber 1, a cylinder bodies left side from the right chamber 2 of the cylinder body of oil hydraulic cylinder through the chamber, a cylinder body left side 1 of small plunger 4 from oil hydraulic cylinder, thereby drives the oil hydraulic cylinder acting.Accompanying drawing 2 shows the structural principle of plunger.Control lower electromagnet 9 at impulsive current promotes plunger piston 7 to left movement, chamber, a plunger left side 5 smaller volume, and the right cavity volume of plunger becomes big.The hydraulic oil in chamber 5, a plunger left side is discharged to the right chamber 2 of cylinder body through one-way valve 11; The promotion oil hydraulic cylinder moves right; The volume that when structural design, guarantees chamber 5, a plunger left side, the right chamber 6 of plunger changes synchronously; The hydraulic oil in chamber 1, a cylinder body left side just can temporarily be stored in the right chamber 6 of plunger in electromagnet 9 actings, prevents entrap phenomenon to occur because of the hydraulic oil compression.After acting was accomplished, under the effect of electromagnet 9 spring forces, piston 3 moved to right, and the oil in the right chamber 6 of plunger is inhaled chamber 5, a prop drawing plug left side through chamber 1, a cylinder body left side, one-way valve 11, accomplishes oil-absorbing process.Utilize the PWM PWM output of digital processing unit DSP to produce the break-make that five road waveforms are controlled five electromagnet respectively; Can the effective waveform of every road waveform and the value in cycle thereof have just determined rulyly to work successively between each small plunger 4, and it is worth by time or determining positions.
The hydraulic system of above-mentioned digital oil hydraulic cylinder has that compact structure, volume are little, easy to maintenance, control is simple, the control accuracy advantages of higher.
The above is a preferred embodiment of the utility model, and under the situation that does not break away from the utility model inventive concept, any conspicuous distortion and the replacement carried out all belong within the utility model protection domain.
Claims (4)
1. the hydraulic system of a digital oil hydraulic cylinder; Comprise cylinder chamber, be provided with the piston (3) that cylinder chamber is divided into chamber (1), a cylinder body left side and the right chamber of cylinder body (2) in the cylinder chamber and it is characterized in that: on piston (3), be evenly equipped with two prescriptions on the contrary and can realize the small plunger (4) of hydraulic function.
2. the hydraulic system of digital oil hydraulic cylinder according to claim 1; It is characterized in that: described small plunger (4) comprises plunger cavity; In plunger cavity, be provided with the plunger piston (7) that plunger cavity is divided into plunger chamber (5), a left side and the right chamber of plunger (6); Plunger piston (7) is connected with electromagnet (9) through plunger connecting rod (8), on plunger piston (7), is provided with to prevent the cancel each other type of the carving baffle plate (10) of power of two groups of small plungers in the opposite direction.
3. the hydraulic system of digital oil hydraulic cylinder according to claim 2, it is characterized in that: described electromagnet is connected with digital processing unit DSP.
4. according to the hydraulic system of any described digital oil hydraulic cylinder among the claim 1-3, it is characterized in that: described hydraulic system precision is 0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200942292U CN202468522U (en) | 2012-03-06 | 2012-03-06 | Hydraulic system for digital hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200942292U CN202468522U (en) | 2012-03-06 | 2012-03-06 | Hydraulic system for digital hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468522U true CN202468522U (en) | 2012-10-03 |
Family
ID=46916682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200942292U Expired - Fee Related CN202468522U (en) | 2012-03-06 | 2012-03-06 | Hydraulic system for digital hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536946A (en) * | 2012-03-06 | 2012-07-04 | 肇庆市志成气动有限公司 | Hydraulic system of digital hydraulic cylinder |
-
2012
- 2012-03-06 CN CN2012200942292U patent/CN202468522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536946A (en) * | 2012-03-06 | 2012-07-04 | 肇庆市志成气动有限公司 | Hydraulic system of digital hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130306 |