CN209976931U - Hydraulic power unit with descending speed function for lifting platform - Google Patents
Hydraulic power unit with descending speed function for lifting platform Download PDFInfo
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- CN209976931U CN209976931U CN201920472413.8U CN201920472413U CN209976931U CN 209976931 U CN209976931 U CN 209976931U CN 201920472413 U CN201920472413 U CN 201920472413U CN 209976931 U CN209976931 U CN 209976931U
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Abstract
The utility model discloses a hydraulic power unit for elevating platform with decline fast and slow speed function, the on-line screen storage device comprises a base, through bolt fixedly connected with oil tank on the base, respectively fixedly connected with oil filler hole and oil discharge outlet on the upper end of oil tank and the front, the top one end fixedly connected with fixing base of oil tank, be connected with slow decline governing valve and slow oil return solenoid valve on another oil circuit between pneumatic cylinder and the check valve. The device is through adjusting slow oil return solenoid valve and quick oil return solenoid valve, the dead weight of control elevating platform falls back, and it is convenient to descend fast and slow speed regulation, the elevating platform is at the in-process that descends, through automatically controlled regulation slow speed governing valve that descends and the fast speed governing valve that descends, realize the fast and slow speed automatic switch-over of elevating platform, the impact that causes when having alleviated the elevating platform greatly descends, the work stationarity has been improved, the life of elevating platform has been prolonged, the emergent decline function has simultaneously, the reliability and the suitability of product have been improved.
Description
Technical Field
The utility model belongs to the technical field of jacking equipment, concretely relates to hydraulic power unit for elevating platform with decline fast slow-speed function.
Background
The scissor-fork type lifting platform has the characteristics of self-height of equipment, prominent lifting stroke amplification effect and simple and reliable structure, is mostly used for the structures of lifting platforms of theater lifting orchestra pools or lifting stages and other occasions, the lifting function of products is mainly realized by oil pressure, but the impact force is large when the existing scissor-fork type lifting platform descends, the descending speed is not easy to control, the working stability is poor, the service life of the existing scissor-fork type lifting platform is not prolonged, and the improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic power unit for elevating platform with decline fast slow-speed function to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic power unit with fast and slow descending functions for a lifting platform comprises a base, wherein an oil tank is fixedly connected to the base through bolts, an oil leakage port is formed in the top of the oil tank, an oil filling port and an oil discharging port are respectively and fixedly connected to the upper end and the front of the oil tank, a fixed seat is fixedly connected to one end of the top of the oil tank, a pressure regulating valve and a one-way valve are respectively and fixedly connected to the front and the side of the fixed seat, the upper end of the fixed seat is integrally connected with a support, a slow descending speed regulating valve and a fast descending speed regulating valve are fixedly installed on the front of the support, a slow oil return electromagnetic valve and a fast oil return electromagnetic valve are fixedly installed on the back of the support, and an; the hydraulic control system is characterized in that an alternating current motor is fixedly connected to the other end of the top of the oil tank, the output end of the alternating current motor penetrates through the inside of the oil tank and is fixedly connected with a hydraulic pump, the oil suction end of the hydraulic pump is connected with the oil tank, two oil ways are arranged on the hydraulic pump, a pressure regulating valve is connected to one oil way of the hydraulic pump, the oil outlet of the pressure regulating valve is connected to the oil tank, a hydraulic cylinder is connected to the other oil way of the hydraulic pump through a one-way valve, two oil ways are arranged between the hydraulic cylinder and the one-way valve and are connected to the oil tank, a fast descending speed regulating valve and a fast oil returning electromagnetic valve are connected to one oil way between the hydraulic cylinder and the.
This setting is through adjusting slow oil return solenoid valve and quick oil return solenoid valve, the dead weight of control elevating platform falls back, and it is convenient to descend fast and slow speed regulation, the elevating platform is at the in-process that descends, through automatically controlled regulation slow speed governing valve that descends and the governing valve that descends fast, realize the fast and slow speed automatic switch-over of elevating platform, the impact that causes when having alleviated the elevating platform greatly, the work stationarity has been improved, the life of elevating platform has been prolonged, the emergent decline function has simultaneously, the reliability and the suitability of product have been improved.
Preferably, the front surface of the oil tank is fixedly connected with an oil pointer.
This setting is convenient for observe the inside oil mass in-service behavior of oil tank.
Preferably, a pressure gauge is connected in parallel between the one-way valve and the pressure regulating valve.
The pressure value is convenient to display and the observation operation is convenient.
Preferably, the hydraulic pump is a gear pump.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a left side schematic view of the present invention;
fig. 3 is a schematic top view of the present invention;
fig. 4 is a schematic diagram of the system of the present invention.
In the figure: 1. a base; 2. an oil tank; 3. an alternating current motor; 4. an oil filler; 5. an oil discharge port; 6. oil marks; 7. a fixed seat; 8. a support; 9. a pressure regulating valve; 10. a one-way valve; 11. a slow descent speed regulation valve; 12. a fast descent speed regulation valve; 13. a slow oil return electromagnetic valve; 14. a quick oil return electromagnetic valve; 15. an oil outlet; 16. an oil leakage port; 17. a hydraulic pump; 18. a hydraulic cylinder; 19. and a pressure gauge.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-4, a hydraulic power unit for a lifting platform with fast and slow descending functions comprises a base 1, wherein an oil tank 2 is fixedly connected to the base 1 through bolts, an oil leakage port 16 is arranged on the top of the oil tank 2, an oil filling port 4 and an oil discharging port 5 are respectively and fixedly connected to the upper end and the front of the oil tank 2, a fixed seat 7 is fixedly connected to one end of the top of the oil tank 2, a pressure regulating valve 9 and a one-way valve 10 are respectively and fixedly connected to the front and the side of the fixed seat 7, a support 8 is integrally connected to the upper end of the fixed seat 7, a slow descending speed regulating valve 11 and a fast descending speed regulating valve 12 are fixedly installed on the front of the support 8, a slow oil returning electromagnetic valve 13 and a fast oil returning electromagnetic valve 14 are fixedly installed on the back of the support 8, and; the hydraulic control system is characterized in that an alternating current motor 3 is fixedly connected to the other end of the top of the oil tank 2, the output end of the alternating current motor 3 penetrates through the inside of the oil tank 2 and is fixedly connected with a hydraulic pump 17, the oil suction end of the hydraulic pump 17 is connected with the oil tank 2, two oil ways are arranged on the hydraulic pump 17, a pressure regulating valve 9 is connected to one oil way of the hydraulic pump 17, the oil outlet of the pressure regulating valve 9 is connected to the oil tank 2, a hydraulic cylinder 18 is connected to the other oil way of the hydraulic pump 17 through a one-way valve 10, two oil ways are arranged between the hydraulic cylinder 18 and the one-way valve 10 and are connected to the oil tank 2, a fast descending speed regulating valve 12 and a fast oil returning electromagnetic valve 14 are connected to one oil way between the hydraulic cylinder 18 and the one-way.
The front surface of the oil tank 2 is fixedly connected with an oil pointer 6; the oil quantity using condition inside the oil tank 2 is convenient to observe.
A pressure gauge 19 is connected in parallel between the one-way valve 10 and the pressure regulating valve 9; the pressure value is convenient to display, and the observation operation is convenient.
The hydraulic pump 17 is a gear pump.
Specifically, during the use, electronic components that the device used all with the main control system electric connection of elevating platform, the elevating platform is connected with 18 output shafts of pneumatic cylinder, through adjusting slow oil return solenoid valve 13 and quick oil return solenoid valve 14, the dead weight of control elevating platform falls back, and it is convenient to descend fast and slow speed regulation, the elevating platform is at the descending in-process, through automatically controlled regulation slow speed governing valve 11 that descends and fast speed governing valve 12 that descends, realize elevating platform fast and slow speed automatic switch-over, the impact that causes when having alleviated the elevating platform and descend greatly, the work stationarity has been improved, the life of elevating platform has been prolonged, have emergent decline function simultaneously, the reliability and the suitability of product have been improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (4)
1. The utility model provides a hydraulic power unit for elevating platform with decline fast slow-speed function, includes base (1), its characterized in that: an oil tank (2) is fixedly connected to the base (1) through bolts, a leakage oil port (16) is formed in the top of the oil tank (2), an oil filling port (4) and an oil discharging port (5) are fixedly connected to the upper end and the front of the oil tank (2) respectively, a fixed seat (7) is fixedly connected to one end of the top of the oil tank (2), a pressure regulating valve (9) and a one-way valve (10) are fixedly connected to the front and the side of the fixed seat (7) respectively, a support (8) is integrally connected to the upper end of the fixed seat (7), a slow-descending speed regulating valve (11) and a fast-descending speed regulating valve (12) are fixedly installed on the front of the support (8), a slow-speed oil return electromagnetic valve (13) and a fast-oil return electromagnetic valve (14) are fixedly installed on the back of the support (8); the utility model discloses a hydraulic pump, including oil tank (2), hydraulic pump (17), air pressure regulator valve (18), pneumatic cylinder (10), pneumatic cylinder (18) and check valve (10), the top other end fixedly connected with AC motor (3) of oil tank (2), the output of AC motor (3) runs through inside and hydraulic pump (17) fixed connection to oil tank (2), the oil absorption end of hydraulic pump (17) connects oil tank (2), be equipped with two oil circuits on hydraulic pump (17), be connected with air-vent valve (9) on one oil circuit of hydraulic pump (17), the oil-outlet of air-vent valve (9) is connected to oil tank (2), be connected with fast decline governing valve (12) and fast oil return solenoid valve (14) on another oil circuit between pneumatic cylinder (18) and check valve (10), be connected with slow speed decline governing valve (12) on another oil circuit between pneumatic cylinder (18) and check valve (10) A valve (11) and a slow oil return electromagnetic valve (13).
2. The hydraulic power unit with descending fast and slow speed function for the lifting platform of claim 1, is characterized in that: the front surface of the oil tank (2) is fixedly connected with an oil pointer (6).
3. The hydraulic power unit with descending fast and slow speed function for the lifting platform of claim 1, is characterized in that: and a pressure gauge (19) is connected in parallel between the one-way valve (10) and the pressure regulating valve (9).
4. The hydraulic power unit with descending fast and slow speed function for the lifting platform of claim 1, is characterized in that: the hydraulic pump (17) is a gear pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472413.8U CN209976931U (en) | 2019-04-10 | 2019-04-10 | Hydraulic power unit with descending speed function for lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472413.8U CN209976931U (en) | 2019-04-10 | 2019-04-10 | Hydraulic power unit with descending speed function for lifting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209976931U true CN209976931U (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920472413.8U Active CN209976931U (en) | 2019-04-10 | 2019-04-10 | Hydraulic power unit with descending speed function for lifting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209976931U (en) |
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2019
- 2019-04-10 CN CN201920472413.8U patent/CN209976931U/en active Active
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