Voltage stabilization power unit

Abstract

The utility model discloses a pressure stabilizing power unit which comprises an oil tank, an oil pump and a motor, the oil pump is connected with a one-way valve, the oil pump is connected with a first high-pressure oil way and a second high-pressure oil way through the one-way valve, and the first high-pressure oil way is provided with a two-way electromagnetic ball valve and a first oil using connector. The hydraulic system is provided with two high-pressure oil ways, one high-pressure oil way can achieve pressure regulation and control output pressure through the pressure regulating valve, the other high-pressure oil way is provided with the energy accumulator, and when the motor stops working, the energy accumulator is connected with the two-way electromagnetic ball valve through the two-way electromagnetic ball valve, and the two-way electromagnetic ball valve is connected with the two-way electromagnetic ball valve through the two-way electromagnetic ball valve, and the two-way electromagnetic ball valve is connected with the two-way electromagnetic ball valve through the two-way electromagnetic ball valve. And the pressure stability in the oil path is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hydraulic pump, more particularly relates to a stable pressure power unit. BACKGROUND

[0002] The film laminating machine can be divided into two categories: coating type film laminating machine and pre-coating type film laminating machine. It is a special equipment for paper and film. The coating type film laminating machine includes three parts: gluing, drying and hot pressing. It has wide application range, stable and reliable processing performance, and is widely used in China at present. The pre-coating type film laminating machine has no gluing and drying part, small size, low cost and flexible operation. It is not only suitable for laminating processing of large quantities of printed matter, but also suitable for laminating processing of small quantities and scattered printed matter of automatic desktop office system.

[0003] The hydraulic unit of the full-automatic film laminating machine disclosed in Chinese patent No. CN208216276U includes an oil storage device, characterized in that: the oil storage device is connected with a driving device through a main valve block, an electromagnetic valve is arranged on the main valve block, a pressure compensation device is connected to the upper part of the main valve block through a transition integrated block, the other end of the transition integrated block opposite to the pressure compensation device is connected with an external first oil cylinder through a first oil cylinder connecting hole group, the other end of the transition integrated block opposite to the main valve block is connected with an external second oil cylinder through a second oil cylinder connecting hole, and the first oil cylinder connecting hole group and the second oil cylinder connecting hole are respectively in communication with the main valve block.

[0004] It describes how to control the lifting of the driving roller or the lifting of the mold (lifting platform) of the film laminating machine through the hydraulic unit, but it cannot quickly adjust the oil pressure according to the lifting speed required by the lifting platform. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a two-way high-pressure oil circuit, one of which can realize pressure regulation through a pressure regulating valve to control the output pressure, and the other has an accumulator to ensure stable pressure in the oil circuit when the motor stops working.

[0006] To achieve the above object, the utility model provides the following technical scheme: a stable pressure power unit, comprising an oil tank, an oil pump and a motor, the oil pump is connected with a check valve, the oil pump is connected with a first high-pressure oil circuit and a second high-pressure oil circuit through the check valve, a two-way electromagnetic ball valve and a first oil outlet are arranged on the first high-pressure oil circuit, an accumulator is arranged between the two-way electromagnetic ball valve and the oil outlet, and a pressure regulating valve and a second oil outlet are arranged on the second high-pressure oil circuit.

[0007] Further, a cartridge type overflow valve is arranged between the outlet of the oil pump and the oil tank.

[0008] Further, a one-way electromagnetic ball valve is arranged between the first high-pressure oil path and the oil tank, and the one-way electromagnetic ball valve is arranged between the one-way valve and the two-way electromagnetic ball valve.

[0009] Further, a stop valve is arranged after the second high-pressure oil path corresponds to the pressure regulating valve.

[0010] Further, an oil suction filter screen is arranged in the oil tank, and an air cleaner is arranged on the oil tank.

[0011] Further, the first oil interface is provided with a plurality of.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: through the arrangement of different oil paths, two valves are adopted to control two circuits, one of which is connected to the lifting platform and can adjust the oil pressure at any time to change the speed of the lifting platform; the other one has an accumulator and can ensure the pressure stability of the oil equipment when the motor is stopped, and the circuit has a two-way electromagnetic ball valve and a one-way electromagnetic ball valve to achieve double cut-off control circuit, which is more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the oil path principle drawing of the utility model steady voltage power unit;

[0014] Figure 2 It is the utility model steady voltage power unit's three-dimensional structure drawing.

[0015] Mark: 1, oil tank; 2, oil suction filter screen; 3, air cleaner; 4, motor; 5, oil pump; 6, plug-in type overflow valve; 7, one-way valve; 8, one-way electromagnetic ball valve; 9, two-way electromagnetic ball valve; 10, accumulator; 11, stop valve; 12, pressure regulating valve; 13, first oil interface; 14, second oil interface. DETAILED DESCRIPTION

[0016] Reference Figure 1 And 2 The embodiment of the utility model steady voltage power unit is further described.

[0017] In the description of the utility model, it should be explained that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0019] A voltage-stabilized power unit includes an oil tank 1, an oil pump 5, and a motor 4. The oil pump 5 is connected to a one-way valve 7 and is connected to a first high-pressure oil circuit and a second high-pressure oil circuit through the one-way valve 7. The first high-pressure oil circuit is provided with a bidirectional electromagnetic ball valve 9 and a first oil inlet 13 (P1-P4). An accumulator 10 is provided between the bidirectional electromagnetic ball valve 9 and the oil inlet. The second high-pressure oil circuit is provided with a pressure regulating valve 12 and a second oil inlet 14 (P01).

[0020] When applied to an automatic laminating machine, the second oil inlet 14 is connected to the lifting platform, and the first oil inlet 13 is connected to other oil-using components. The operating speed of the lifting platform can be adjusted at any time by adjusting the pressure regulating valve 12.

[0021] When the motor 4 stops running, the first high-pressure oil circuit can maintain pressure through the accumulator 10 to ensure that the oil pressure in the first high-pressure oil circuit does not drop within a certain period of time.

[0022] In this embodiment, the accumulator 10 has a metal casing and a high-pressure air bladder inside. Nitrogen is filled into the high-pressure air bladder. When the motor 4 is working, the pressure in the first high-pressure oil circuit is high, and the high-pressure air bladder is compressed. When the motor 4 stops, the bidirectional electromagnetic ball valve 9 closes, and the high-pressure air bladder releases pressure to maintain the pressure of the first high-pressure oil circuit.

[0023] Preferably, a shut-off valve 11 is provided after the pressure regulating valve 12 in the second high-pressure oil circuit.

[0024] In this embodiment, the two high-pressure oil circuits are each controlled by a separate valve, and the two high-pressure oil circuits do not interfere with each other.

[0025] In this preferred embodiment, a cartridge-type overflow valve 6 is provided between the outlet of the oil pump 5 and the oil tank 1.

[0026] When the pressure in the high-pressure oil circuit is too high, the oil can be returned to the oil tank 1 through the cartridge-type relief valve 6 to ensure the safety of the entire power unit.

[0027] like Figure 1 As shown, in this preferred embodiment, a one-way electromagnetic ball valve 8 is provided between the first high-pressure oil circuit and the oil tank 1, and the one-way electromagnetic ball valve 8 is located between the one-way valve 7 and the two-way electromagnetic ball valve 9.

[0028] The cooperation of the one-way electromagnetic ball valve 8 and the two-way electromagnetic ball valve 9 realizes double cut-off control of the second high-pressure oil way, is more stable and reliable, and guarantees the pressure stability of the second high-pressure oil way.

[0029] The oil tank 1 is preferably provided with an oil suction filter screen 2, and the oil tank 1 is provided with an air filter 3.

[0030] The first oil connection 13 is preferably provided with a plurality of first oil connections 13, and the plurality of first oil connections 13 can simultaneously connect a plurality of oil using components.

[0031] The preferred embodiments of the utility model are described above, the protection scope of the utility model is not only limited to the above-mentioned embodiments, and all technical solutions belonging to the utility model idea are within the protection scope of the utility model. It should be pointed out that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the utility model are also regarded as the protection scope of the utility model.

Claims

1. A regulated power unit comprising an oil tank, an oil pump and an electric motor, characterized in that: The oil pump is connected with a one-way valve, the oil pump is connected with a first high-pressure oil path and a second high-pressure oil path through the one-way valve, a two-way electromagnetic ball valve and a first oil use interface are arranged on the first high-pressure oil path, an energy accumulator is arranged between the two-way electromagnetic ball valve and the oil use interface, a pressure regulating valve and a second oil use interface are arranged on the second high-pressure oil path.

2. The regulated power unit of claim 1, wherein: An insertion type overflow valve is arranged between the outlet of the oil pump and the oil tank.

3. The regulated power unit of claim 2, wherein: A one-way electromagnetic ball valve is arranged between the one-way valve and the two-way electromagnetic ball valve.

4. The regulated power unit of claim 3, wherein: A stop valve is arranged after the pressure regulating valve corresponding to the second high-pressure oil path.

5. The regulated power unit of claim 4, wherein: An oil suction filter screen is arranged in the oil tank, and an air filter is arranged on the oil tank.

6. The regulated power unit of claim 1, wherein: The first oil use interface is provided with a plurality of first oil use interfaces.

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