CN203009445U - Electro-hydraulic pressure cylinder - Google Patents
Electro-hydraulic pressure cylinder Download PDFInfo
- Publication number
- CN203009445U CN203009445U CN 201220623224 CN201220623224U CN203009445U CN 203009445 U CN203009445 U CN 203009445U CN 201220623224 CN201220623224 CN 201220623224 CN 201220623224 U CN201220623224 U CN 201220623224U CN 203009445 U CN203009445 U CN 203009445U
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- cylinder piston
- plunger
- oil pocket
- electric
- oil chamber
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Abstract
The utility model provides an electro-hydraulic pressure cylinder enables the rotation of a screw nut to convert to linear reciprocating motion and a press device equipped with the electro-hydraulic pressure cylinder. A motor is provided with an electric cylinder piston at the other end of the nut through the lead screw; a pre-pressurization oil chamber I, a plunger oil chamber II and a pressurization oil chamber III are outwardly arranged in sequence on the electric cylinder piston; a plunger is arranged at one end of the electric cylinder piston and penetrates through the pre-pressurization oil chamber I, the plunger oil chamber II and the pressurization oil chamber III through connecting rods; a pressure cylinder piston is arranged at the top of a connecting rod outside the pressurization oil chamber III; a pressure head is arranged outside the pressure cylinder piston and extends out of a cylinder body; and the pre-pressurization oil chamber I is connected with an oil reservoir. The electro-hydraulic pressure cylinder has large output force, the operation is convenient, the hydraulic transmission is stable, and requirements of a punch forming or press fitting technology are met; and the press device achieves the effect of increasing the pressure to a plurality of times or dozens of times by the aid of the ratios of the stressed cross section areas of different sizes of electro-hydraulic pressure cylinders.
Description
Technical field
The utility model relate to a kind of impact briquetting for numerous industries such as machinery, automobile, electrical equipment, five metals, assembling, blanking,, the electronic pressurized cylinder of the operation such as flange, riveted joint, calking, impression and the press apparatus of electric liquid pressurized cylinder is installed.
background technique
Electric cylinder (also claiming electric pushrod) is that rotatablely moving of motor is converted into to straight reciprocating motion by a pair of feed screw nut.The main feature of electric cylinder be simple in structure, easy to operate, be easy to safeguard, working environment totally, especially synchronism is better, can realize distant control, centralized control, as long as connect electricity, just can operate.
Moreover in frequency of okperation low situation, the cost of cylinder, oil hydraulic cylinder is also high, needs configuration source of the gas or pumping plant.General electric cylinder stroke standardization, special stroke can be customized according to the design of different application conditional request.The electric cylinder load can require to design according to different application load the electric cylinder of different pressures, but, due to reasons such as screw-nut structure, material and power transmissions, its maximum ouput force is restricted.
summary of the invention
The utility model provides a kind of electric liquid pressurized cylinder and the press apparatus of electric liquid pressurized cylinder is installed, and can adapt to the requirement of impact briquetting or technology of pressure mounting.
For this reason, the technical solution of the utility model, a kind of electric liquid pressurized cylinder, comprise motor 1 and cylinder body 9, motor is arranged on an end of cylinder body 9, the front end of motor 1 is provided with leading screw 2, on leading screw 2, cover has nut 3, the outside of nut 3 is provided with guide pin bushing 4, it is characterized in that: the other end at nut 3 is provided with electric cylinder piston 5, electric cylinder piston 5 outwards is provided with pre-pumping cavity I, plunger oil pocket II and supercharging oil pocket III successively, and wherein electric cylinder piston 5 ends are provided with plunger 6, and plunger 6 runs through pre-pumping cavity I, plunger oil pocket II and supercharging oil pocket III by coupling rod 7; Outside supercharging oil pocket III, the top of coupling rod 7 is provided with pressurized cylinder piston 8, pressurized cylinder piston 8 is outer is provided with pressure head 10, pressure head 10 stretches out outside cylinder body 9 again; Pre-pumping cavity I is connected with oil conservator 13.
Improvement to such scheme is: it is same moving link that nut 3, guide pin bushing 4, electric cylinder piston 5, plunger 6, coupling rod 7 connect firmly together.
Improvement to such scheme is: coupling rod 7 and pressurized cylinder piston 8 are for being slidably connected or flexibly connecting.
Improvement to such scheme is: pre-pumping cavity I is combined into one by plunger oil pocket II and supercharging oil pocket III.
Improvement to such scheme is: supercharging oil pocket III is provided with Protective valve and pressure gauge outward.
A kind of press apparatus that electric liquid pressurized cylinder is installed, comprise frame and control system, it is characterized in that: described electric liquid pressurized cylinder is arranged on frame, and corresponding frame is provided with table top and fixture, and electric liquid pressurized cylinder is connected to control system.
Beneficial effect:
The utility model is electric cylinder and fluid pressurized cylinder to be combined simultaneously, nut, guide pin bushing, electric cylinder piston, plunger, coupling rod connect firmly together as same moving link, and it has the easy to operate advantage of electric cylinder and hydraulic transmission advantage stably simultaneously.
Coupling rod and pressurized cylinder piston have not only been protected pressurized cylinder piston for being slidably connected or flexibly connecting, and have also protected coupling rod.
Pre-pumping cavity I and supercharging oil pocket III are combined into one to make and install and process easier for installation and reliable.
Pre-pumping cavity I is provided with oil conservator outward, and after plunger enters plunger oil pocket II, the oil in pre-pumping cavity I flows into oil conservator.
Supercharging oil pocket III is provided with Protective valve and pressure gauge outward, for the pressure of avoiding pressurized cylinder to move when the supercharging is crossed holocaust mould or workpiece, so that effective overload protection.
The utility model electricity liquid pressurized cylinder has not only overcome the shortcoming of electric cylinder, oil hydraulic cylinder, pneumohydraulic pressure-cylinder, but also combines the advantage of electric cylinder, oil hydraulic cylinder, pneumohydraulic pressure-cylinder.Electricity liquid pressurized cylinder has following central characteristics:
1) Input Forces is little, High power output, and high working efficiency, energy-conservation;
2) mechanical, electrical, liquid integrated full-closed structure, be active in one's movements, and noise is little, and the precompressed soft landing can effectively slow down external impact force, does not damage workpiece, and fault is few;
3) housing structure is simple, and work fluid is circulated in the cylinder barrel of sealing, and volume is little, oil-proof, without oil pollution, is convenient to installation and maintenance.Not dust suction under rugged environment, do not intake, not corrosion of inside, long service life;
4) Stroke Control is accurate, has reliable automatic overload protection function and auto-lock function;
5) invest little.
Cylinder need be built expensive air compressor plant, and leak the pneumatic tube Louis, and air pressure is unstable, and noise is high; Oil hydraulic cylinder, electric fluid cylinder all need oil hydraulic pump; And electric liquid pressurized cylinder only need switch on power and can use.
Electricity liquid pressurized cylinder has scientifically been realized manufacturing process reasonably is divided into to three processes (being idle stroke, supercharging stroke, backhaul) according to the variation of outer load, and outer load applies respectively different active pressures to the difference of various process, thus this technology be widely used in numerous industries such as five metals, electronics, electrical equipment, automobile, machinery, clock and watch, instrument assembling, blanking, cutting, moulding, flange, be pressed into, the operations such as riveted joint, calking, calibration and impression.
The accompanying drawing explanation
Fig. 1 electricity liquid pressurized cylinder A structural representation.
Fig. 2 is that electric liquid pressurized cylinder A is arranged on the schematic diagram on press apparatus.
The 1st, motor, the 2nd, leading screw, the 3rd, nut, the 4th, guide pin bushing, the 5th, electric cylinder piston, the 6th, plunger, the 7th, coupling rod, the 8th, pressurized cylinder piston, the 9th, cylinder body, the 10th, pressure head, the 11st, spring, the 12nd, Protective valve and pressure gauge, the 13rd, oil conservator, the 14th, table top and fixture, the 15th, frame, the 16th, control system; pre-pumping cavity I, plunger oil pocket II, supercharging oil pocket III, A is electric liquid pressurized cylinder.
Embodiment
The utility model as shown in Figure 1, 2.
A kind of electric liquid pressurized cylinder, comprise motor 1 and cylinder body 9, motor is arranged on an end of cylinder body 9, the front end of motor 1 is provided with leading screw 2, and on leading screw 2, cover has nut 3, and the outside of nut 3 is provided with guide pin bushing 4, the other end at nut 3 is provided with electric cylinder piston 5, electric cylinder piston 5 outwards is provided with pre-pumping cavity I, plunger oil pocket II and supercharging oil pocket III successively, and wherein electric cylinder piston 5 ends are provided with plunger 6, and plunger 6 runs through pre-pumping cavity I, plunger oil pocket II and supercharging oil pocket III by coupling rod 7; Outside supercharging oil pocket III, the top of coupling rod 7 is provided with pressurized cylinder piston 8, pressurized cylinder piston 8 is outer is provided with pressure head 10, pressure head 10 stretches out outside cylinder body 9 again; Pre-pumping cavity I is connected with oil conservator 13.
It is same moving link that nut 3, guide pin bushing 4, electric cylinder piston 5, plunger 6, coupling rod 7 connect firmly together.
Pre-pumping cavity I and plunger oil pocket II and supercharging oil pocket III are combined into one.
Supercharging oil pocket III is provided with Protective valve and pressure gauge 12 outward.
Pre-pumping cavity I is provided with oil conservator 13 outward.
A kind of press apparatus that electric liquid pressurized cylinder is installed, comprise frame 15 and control system 16, and described electric liquid pressurized cylinder A is arranged on frame 15, and corresponding frame 15 is provided with table top and fixture 14, and electric liquid pressurized cylinder A is connected to control system 16; Control motor 1, piston, pressure head 10 coordination automatic operations, detection of dynamic shows pressure and displacement simultaneously.Electricity liquid supercharging press is the ratio that utilizes the pressurized section area that varies in size of electric liquid pressurized cylinder, thereby reaches the pressure result of pressure being brought up to several times or decades of times.
The working principle of electricity liquid pressurized cylinder:
Pressurized cylinder is lower pressure can be inputted, with the hydraulic pressure inverting element of elevated pressures output,
Pre-pumping cavity I is combined into one by plunger oil pocket (II) and supercharging oil pocket III, electric cylinder piston 5 is pushed the fluid in pre-pumping cavity I to supercharging oil pocket III, because electric cylinder piston 5 pressure are constant, plunger 6 enters in plunger oil pocket II, form oil closed cavity in supercharging oil pocket III, when compression area from large to small the time, pressure also can be with varying in size and change, when with load balance, according to pascal's principle " liquid of sealing can the pressure size of external pressurized unchangeably to all directions transmission ", as disregard surface friction drag, by electric cylinder piston stress balance, try to achieve supercharging oil pocket oil pressure P
2, the following formula of foundation:
π/4（?
D 1 2 ?P
2）=π/4（d
2?P
2）
P
2= （D 1 2? /d 2 ） * P 1
P in formula
1---input electric cylinder piston pressure;
P
2---the oil pressure of pressurized cylinder;
d 1 ---the electric cylinder piston diameter;
d 2 ---the pressurized cylinder piston diameter;
D---electric cylinder plunger diameter.
D
1/ d is called pressure ratio, the D that the oil pressure of supercharging oil pocket is the electric cylinder piston pressure as can be seen here
1/ d times, D
1/ d is larger, and pressure ratio is also larger.If D
1=D
2, D
1/ d=D/d.Utilize the ratio of the pressurized section area that varies in size of pressurized machine, thereby reach the pressure result of pressure being brought up to several times or decades of times.
The action step of electricity liquid pressurized cylinder:
During the work of electricity liquid pressurized cylinder, be to realize after utilizing motor 1 clockwise and anticlockwise to transform by a pair of leading screw 2 nuts 3 that the pressurized cylinder piston bar does straight reciprocating motion.Starting electrical machinery 1, during forward, 5 motions of electric cylinder piston, hydraulic oil in pre-pumping cavity I can flow in supercharging oil pocket III by plunger oil pocket II under plunger 6 effects, the pressurized cylinder piston 8 that now hydraulic oil can promote rapidly to be fixed together with pressure head 10 is done displacement, after the precompression stroke finishes, electric cylinder plunger 6 enters in plunger oil pocket II, form oil closed cavity in supercharging oil pocket III, electric cylinder piston 5 moves forward with electric cylinder plunger 6, now the supercharging oil pocket produces high pressure oil and promotes pressure head output more energetically, thereby has reached the purpose of punching press or assembling.During backhaul, motor 1 reversion, the pressurized cylinder piston bar is return, until electric liquid pressurized cylinder completes an actuation cycle, finishes, and works on and can enter next circulation.
Claims (5)
1. an electric liquid pressurized cylinder, comprise motor (1) and cylinder body (9), motor is arranged on an end of cylinder body (9), the front end of motor (1) is provided with leading screw (2), the upper cover of leading screw (2) has nut (3), the outside of nut (3) is provided with guide pin bushing (4), it is characterized in that: the other end at nut (3) is provided with electric cylinder piston (5), electric cylinder piston (5) outwards is provided with pre-pumping cavity I successively, plunger oil pocket II and supercharging oil pocket III, wherein electric cylinder piston (5) end is provided with plunger (6), plunger (6) runs through pre-pumping cavity I by coupling rod (7), plunger oil pocket II and supercharging oil pocket III, outside supercharging oil pocket III, the top of coupling rod (7) is provided with pressurized cylinder piston (8), pressurized cylinder piston (8) is outer is provided with pressure head (10), pressure head (10) stretches out outside cylinder body (9) again, pre-pumping cavity I is externally connected with oil conservator (13).
2. a kind of electric liquid pressurized cylinder according to claim 1 is characterized in that: it is same moving link that nut (3), guide pin bushing (4), electric cylinder piston (5), plunger (6), coupling rod (7) connect firmly together.
3. a kind of electric liquid pressurized cylinder according to claim 1 and 2 is characterized in that: coupling rod (7) with pressurized cylinder piston (8) for being slidably connected or flexibly connecting.
4. a kind of electric liquid pressurized cylinder according to claim 1 is characterized in that: pre-pumping cavity I is combined into one by plunger oil pocket II and supercharging oil pocket III.
5. according to the described a kind of electric liquid pressurized cylinder of claim 1 or 4, it is characterized in that: supercharging oil pocket III is provided with Protective valve and pressure gauge (12) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623224 CN203009445U (en) | 2012-11-23 | 2012-11-23 | Electro-hydraulic pressure cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623224 CN203009445U (en) | 2012-11-23 | 2012-11-23 | Electro-hydraulic pressure cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009445U true CN203009445U (en) | 2013-06-19 |
Family
ID=48601042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220623224 Expired - Fee Related CN203009445U (en) | 2012-11-23 | 2012-11-23 | Electro-hydraulic pressure cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913509A (en) * | 2012-11-23 | 2013-02-06 | 湖北汽车工业学院 | Electrohydraulic pressurizing cylinder and pressing machine equipment with same |
| CN104289649A (en) * | 2013-07-19 | 2015-01-21 | 泰州市恒源建材机械有限公司 | Upsetting machine with gas-liquid supercharger |
-
2012
- 2012-11-23 CN CN 201220623224 patent/CN203009445U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913509A (en) * | 2012-11-23 | 2013-02-06 | 湖北汽车工业学院 | Electrohydraulic pressurizing cylinder and pressing machine equipment with same |
| CN104289649A (en) * | 2013-07-19 | 2015-01-21 | 泰州市恒源建材机械有限公司 | Upsetting machine with gas-liquid supercharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20151123 |