CN2407162Y - Electric hydraulic pump - Google Patents
Electric hydraulic pump Download PDFInfo
- Publication number
- CN2407162Y CN2407162Y CN 00203553 CN00203553U CN2407162Y CN 2407162 Y CN2407162 Y CN 2407162Y CN 00203553 CN00203553 CN 00203553 CN 00203553 U CN00203553 U CN 00203553U CN 2407162 Y CN2407162 Y CN 2407162Y
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- CN
- China
- Prior art keywords
- valve
- electric motor
- motor
- plate seat
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to an electric hydraulic pump, which is composed of an electric motor, a gear pump, a valve seat, a cushion valve, etc., wherein, the valve seat is arranged between an oil tank and the electric motor; the valve seat is provided with a plugging type oil return valve, a one-way valve, a safety valve and a cushion valve; an input shaft of the gear pump is penetrated into the valve seat; the input shaft of the gear pump is connected with an output shaft of the electric motor; the cushion valve is arranged in a vertical face hole of the valve seat; both side surfaces of the valve seat are respectively provided with the safety, the one-way valve and the oil return valve; the oil return valve is provided with an operation rod. When the cushion vale drives the electric motor to start with loading, the operation rod can function as load pressure and time delaying. Thereby, the utility model can prevent the electric motor burning out because of excess starting current and relieve hydraulic impact to protect the normal running of the electric motor.
Description
The utility model relates to Hydraulic for lifting load machinery field, is a kind of electric hydraulic pump of control hoisting system.
At present, hydraulic hoist, lifting machine are used in mechanical industry widely, and it is by motor rotation driven gear pump work, electric energy are converted into a kind of working pump of hydraulic pressure energy.But in same working principle, owe rationally, will cause operating phenomenons such as inconvenient, difficult and supporting because of the structural design of complete machine.
The purpose of this utility model is, a kind of electric hydraulic pump is provided, and the complete machine structure design is owed rationally to solve, operation inconvenience, problem such as difficult and supporting, satisfies the demand in market.
This electric hydraulic pump design proposal is such: it closely links together fuel tank, motor, hydraulic operator etc., motor rotation driven gear pump work, oil pump in the fuel tank is gone into the valve plate seat, in the valve plate seat, be provided with have oil return, the assembly of unidirectional, safety, pooling feature, and being provided with the operating handle of easy operating, the volume of fuel tank is made as two kinds of the square bodily form that is vacant and cuboid shapes according to the capacity of this pump.When the motor bringing onto load started, its starting current was excessive, might burn out motor, and in order to address this problem, the effect protection motor by trimmer valve makes the electric hydraulic pump safe operation.
Its advantage is that function distribution is reasonable, compact structure, easily and like product supporting.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic representation after the utility model assembling;
Fig. 3 is the fundamental diagram of hydraulic circuit.
The sequence number explanation:
1, motor, 2, nut, 3, operating handle, 4, scavenger valve, 5, the fuel feeding swivel nut, 6, the valve plate seat, 7, gear pump, 8, fuel tank, 9, one-way valve, 10, tooth coupling band, 11, the safety valve blind nut, 12, safety valve, 13, trimmer valve, 14, bolt, 15, bolt, 16, lifting actuator (belong to electric hydraulic pump outside execution actuating member), 17, theory diagram, 18, oil-filter pipe.
Referring now to above schematic representation, feature is done following narration: this pump is by motor 1, gear pump 7, compositions such as scavenger valve 4, valve plate seat 6, one-way valve 9, safety valve 12, trimmer valve 13, valve plate seat 6 is arranged between fuel tank 8 and the motor 1, be provided with scavenger valve 4, one-way valve 9, safety valve 12, trimmer valve 13 in valve plate seat 6, the input shaft of gear pump 7 penetrates valve plate seat 6, is connected by the output shaft of tooth coupling band 10 with motor 1.In the vertical plane hole of valve plate seat 6 trimmer valve 13 is set, in its two lateral aperture, safety valve 12, one-way valve 9 and scavenger valve 4 is set respectively, on scavenger valve 4, be provided with operating handle 3.Fuel tank 8 is two kinds of the square bodily form that is vacant and cuboid shapes.
The electric hydraulic pump working principle: this electric hydraulic pump is by 7 work of motor 1 rotation driven gear pump, electric energy is changed into the process of hydraulic pressure energy.After concrete working procedure is the motor switch energising; motor 1 rotation is by tooth cover and gear pump connecting band moving gear pump work; low pressure oil in the fuel tank is become high pressure oil; output to the valve plate seat (hydraulic operator) of control usefulness, safety valve, trimmer valve, one-way valve, scavenger valve (unloading valve) etc. that plug-in type is installed on the control valve panel seat play the effect of oily work done of pilot pressure or protective system element.When especially trimmer valve makes the starting of motor bringing onto load, play the induced pressure time-lag action, thereby prevent that motor from burning because of starting current is excessive, and alleviate hydraulic shock, lifting actuator 16 work of control work done are implemented in the normal operation of protection motor.Its Maximum operating pressure: 20MPa; Opening pressure of safety valve: 15.2MPa; Working pressure: 13.2MPa; Wechselstrommotor parameter: voltage 115V/208-230V; Frequency 60 (hertz) HZ; Electric current 10.0/5.0,5.0/7.5AMP (ampere); Power: 1HP (horsepower) (0.75KW), and is single-phase; Rotating speed: 3450RPM (rpm); Volume of fuel tank: about 4.5 liters or 11.5 liters.
Claims (3)
1, electric hydraulic pump is by motor rotation driven gear pump work, electric energy is converted into a kind of working pump of hydraulic pressure energy, this pump is by motor (1), scavenger valve (4), valve plate seat (6), one-way valve (9), safety valve (12), trimmer valve compositions such as (13), it is characterized in that valve plate seat (6) is arranged between fuel tank (8) and the motor (1), in valve plate seat (6), be provided with the scavenger valve (4) of plug-in type, one-way valve (9), safety valve (12), trimmer valve (13), the input shaft of gear pump (7) penetrate valve plate seat (6) and are connected through the output shaft of tooth coupling band (10) with motor (1).
2, electric hydraulic pump according to claim 1, it is characterized in that in the vertical plane hole of valve plate seat (6) trimmer valve (13) being set, safety valve (12), one-way valve (9) and scavenger valve (4) are set in its two lateral aperture, on scavenger valve (4), are provided with operating handle (3).
3, electric hydraulic pump according to claim 1 is characterized in that fuel tank (8) is the vacant square bodily form and cuboid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203553 CN2407162Y (en) | 2000-02-12 | 2000-02-12 | Electric hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203553 CN2407162Y (en) | 2000-02-12 | 2000-02-12 | Electric hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2407162Y true CN2407162Y (en) | 2000-11-22 |
Family
ID=33572210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00203553 Expired - Lifetime CN2407162Y (en) | 2000-02-12 | 2000-02-12 | Electric hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2407162Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953299A (en) * | 2018-08-04 | 2018-12-07 | 安徽盛美金属科技有限公司 | A kind of small-sized hydraulic power unit |
-
2000
- 2000-02-12 CN CN 00203553 patent/CN2407162Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953299A (en) * | 2018-08-04 | 2018-12-07 | 安徽盛美金属科技有限公司 | A kind of small-sized hydraulic power unit |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20001122 |