CN203717491U - Double suction port hydraulic power unit for lifting platform - Google Patents
Double suction port hydraulic power unit for lifting platform Download PDFInfo
- Publication number
- CN203717491U CN203717491U CN201420070300.2U CN201420070300U CN203717491U CN 203717491 U CN203717491 U CN 203717491U CN 201420070300 U CN201420070300 U CN 201420070300U CN 203717491 U CN203717491 U CN 203717491U
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- China
- Prior art keywords
- pump seat
- oil circuit
- function
- power unit
- face
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- 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
Links
- 239000002828 fuel tank Substances 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 55
- 239000010720 hydraulic oil Substances 0.000 description 5
- 230000003028 elevating effect Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model belongs to the field of hydraulic lift equipment, and relates to a power device used for a hydraulic lift, in particular to a double suction port hydraulic power unit for a lifting platform. The double suction port hydraulic power unit comprises a pump seat; a servo alternating-current motor is fixed to the rear end face of the pump seat; a gear pump is fixed to the front end face of the pump seat; the output shaft end of the servo alternating-current motor is connected with the input end of the gear pump through a coupler; the bottom of the pump seat is fixedly provided with an oil tank; the upper end of the oil tank is in sealed connection with the front end face of the pump seat. The double suction port hydraulic power unit is simple in structure and reasonable in design, the flow of a system can be effectively improved in the using process, insufficient oil suction is avoided, the noise of the system is reduced, the principles of low pollution and high utilization of a hydraulic system are followed, and the market competitiveness and the share of the power unit for the lifting platform are greatly improved.
Description
Technical field
The utility model belongs to hydraulic lift apparatus field, relates to the power plant that hydraulic lift uses, specifically a kind of hydraulic power unit of middle discharge capacity high pressure.
Background technique
Along with scientific and technological progress, the occasion that client uses for hydraulic elevating platform is more and more, requires more and more highlyer, has proposed new requirement thus for the high efficiency of lift platform hydraulic power system.Traditional hydraulic elevating platform power unit, exists the problems such as underfed, noise are large, and stroke is large, the very high occasion of environmental requirement using, and application is subject to significant limitation, is difficult to meet the demand of niche market.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, ingenious, rational double suction hydraulic fluid port lift platform hydraulic power unit is provided, and this power unit can effectively improve flow system flow, reduces action noise.
The technological scheme providing according to the utility model: a kind of double suction hydraulic fluid port lift platform hydraulic power unit, be characterised in that: comprise pump seat, servo AC motor is fixed on described pump seat ear end face, gear pump is fixed on described pump seat front-end face, and the output shaft end of described servo AC motor and the input end of gear pump are connected by coupling; Pump seat bottom is also fixed with fuel tank, the front-end face of described fuel tank and pump seat is tightly connected, on described pump seat, offer the first function oil circuit, the second function oil circuit that twice are arranged in parallel, and described the first function oil circuit and the second function oil circuit divide and occupy coupling both sides.
As further improvement of the utility model, be fixed with system relief valve at pump seat end face, described system relief valve front end valve port is connected the first function oil circuit; On pump seat, be also fixed with one-way valve, the front end of described one-way valve is connected the first function oil circuit; On pump seat, also offer oil groove, described oil groove is connected with the first function oil circuit and the second function oil circuit, and oil groove is respectively perpendicular to the first function oil circuit, the second function oil circuit, described oil groove one end is provided with oil outlet, and described oil outlet and system relief valve are positioned at the same side, and the other end is provided with oil-draining screw; On pump seat, be provided with throttle valve corresponding to the position between oil outlet and system relief valve, described throttle valve front end is connected the second function oil circuit; Described pump seat end face is also fixed with 2/2-way solenoid directional control valve, and described 2/2-way solenoid directional control valve front end is connected the second function oil circuit.
As further improvement of the utility model, described gear pump bottom has two filler openings, and each described filler opening connects respectively a fuel sucking pipe, and described fuel sucking pipe lower end connects filter and stretches into fuel tank bottom.
The utility model compared with prior art, advantage is: the utility model is simple in structure, reasonable in design, in use can effectively improve flow system flow, avoid oil suction deficiency to reduce system noise, accomplish the low pollution of hydraulic system, the principle that usury is used, greatly improved the market competitiveness and the share of hydraulic elevating platform power unit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 hydraulic system principle figure of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Fig. 1 ~ 3, comprise fuel tank 1, oil inlet pipe 2, gear pump 3, the multiplex integrated package of pump seat 4(), servo AC motor 5,2/2-way solenoid directional control valve 6, return tube 7, oil absorption filter 8, system relief valve 9, throttle valve 10, the second function oil circuit 11, oil outlet 12, one-way valve 13, oil-draining screw 14, oil groove 15, coupling 16, the first function oil circuit 17 etc.
As shown in Figure 1 and 2, a kind of lift platform hydraulic power unit of the utility model, comprise pump seat 4, servo AC motor 5 is fixed on described pump seat 4 ear end faces, gear pump 3 is fixed on described pump seat 4 front-end faces, and the output shaft end of described servo AC motor 5 is connected by coupling 16 with the input end of gear pump 3; Pump seat 4 front-end faces are also fixed with fuel tank 1, and be tightly connected between fuel tank 1 upper end and pump seat 4 front-end faces, on described pump seat 4, offer the first function oil circuit 17, the second function oil circuit 11 that twice are arranged in parallel, and 11 points of described the first function oil circuit 17 and the second function oil circuits occupy coupling 16 both sides.
Be fixed with system relief valve 9 at pump seat 4 end faces, described system relief valve 9 front end valve ports are connected the first function oil circuit 17; On pump seat 4, be also fixed with one-way valve 13, the front end of described one-way valve 13 is connected the first function oil circuit 17; On pump seat 4, also offer oil groove 15, described oil groove 15 is connected with the first function oil circuit 17 and the second function oil circuit 11, and oil groove 15 is respectively perpendicular to the first function oil circuit 17, the second function oil circuit 11, described oil groove 15 one end are provided with oil outlet 12, and described oil outlet 12 is positioned at the same side with system relief valve 9, and the other end is provided with oil-draining screw 14; On pump seat 4, be provided with throttle valve 10 corresponding to the position between oil outlet 12 and system relief valve 9, described throttle valve 10 front ends are connected the second function oil circuit 11; Described pump seat 4 end faces are also fixed with 2/2-way solenoid directional control valve 6, and described 2/2-way solenoid directional control valve 6 front ends are connected the second function oil circuit 11.
Described gear pump 3 bottoms have two filler openings, each described filler opening connects respectively a fuel sucking pipe 2, fuel tank 1 bottom is stretched in described fuel sucking pipe 2 lower ends, and be connected with oil absorption filter 8 in the underpart of oil inlet pipe 2 and stretch into fuel tank bottom, on the return opening on pump seat 4 front-end faces, be connected with return tube 7 and stretch in fuel tank.
As shown in Figure 3, working principle of the present utility model is as follows: ac power supply provides the servo AC motor 5 of electric drive to rotate, by coupling 16 connection teeth wheel pumps 3, after gear pump 3 rotations, produce the poor formation suction of turnover oil pressure and pass through oil absorption filter 8, oil inlet pipe 2 from the interior oil suction of fuel tank 1, hydraulic oil enters pump seat 4 after by gear pump 3, fuel-displaced from oil outlet 12 by being arranged on one-way valve 13 in pump seat 4, and promote lift platform hydraulic cylinder piston rod and start action.Move to after specified position at cylinder piston rod, close servo AC motor 5, one-way valve 13 and 6 pressurizes of 2/2-way solenoid directional control valve, lift platform hydraulic cylinder piston rod stops, and platform is to top.In the time of operation that lift platform need decline, close servo AC motor 5, specifically can realize by two kinds of modes the decline process of lift platform: one, 2/2-way solenoid valve 6 obtains electric, spool commutation is opened, lift platform is due to self load gravity, hydraulic oil is got back in fuel tank 1 by 2/2-way solenoid valve 6 and throttle valve 10 and the return tube 7 opened, and cylinder piston rod is retracted, and lift platform declines and resets; Two, in the time that lift platform rises, running into the reasons such as power failure causes the 2/2-way solenoid directional control valve 6 can not conducting, regulate fuel dump screw 14, equally due under platform self load Action of Gravity Field, hydraulic oil is got back in fuel tank 1 by technique oil groove, hydraulic elevating platform declines, this decline process is that fuel dump is enabled, without speed regulating action.
In the time that oil cylinder overload or load exceed relief valve 9 setting pressure, the fluid that gear pump 3 is discharged directly overflows in fuel tank 1 through system relief valve 9, plays the effect of safety protection.
Gear pump 3 in the utility model product adopts double suction hydraulic fluid port gear pump, the noise that the air pocket of effectively avoiding existing product to cause due to the reason of oil suction deficiency produces, two inlet ports are respectively main inlet port and secondary inlet port, and the fuel sucking pipe being connected on main inlet port gos deep in hydraulic oil; Secondary inlet port is fixedly connected with fuel sucking pipe by fastening elbow, and this fuel sucking pipe also gos deep in hydraulic oil.
The servo AC motor 5 adopting in the utility model product, its diameter is larger, and length is less, can effectively reach the effect that strengthens balancing moment, and can reduce well noise.
Claims (3)
1. a double suction hydraulic fluid port lift platform hydraulic power unit, it is characterized in that: comprise pump seat (4), servo AC motor (5) is fixed on described pump seat (4) ear end face, gear pump (3) is fixed on described pump seat (4) front-end face, and the output shaft end of described servo AC motor (5) is connected by coupling (16) with the input end of gear pump (3); Pump seat (4) front-end face is also fixed with fuel tank (1), and fuel tank (1) upper end and pump seat front-end face are tightly connected, on described pump seat (4), offer the first function oil circuit (17), the second function oil circuit (11) that twice are arranged in parallel, and described the first function oil circuit (17) occupy coupling (16) both sides with the second function oil circuit (11) point.
2. double suction hydraulic fluid port lift platform hydraulic power unit as claimed in claim 1, is characterized in that: be fixed with system relief valve (9) at pump seat (4) end face, described system relief valve (9) front end valve port is connected the first function oil circuit (17); On pump seat (4), be also fixed with one-way valve (13), the front end of described one-way valve (13) is connected the first function oil circuit (17); On pump seat (4), also offer oil groove (15), described oil groove (15) is connected with the first function oil circuit (17) and the second function oil circuit (11), and oil groove (15) is respectively perpendicular to the first function oil circuit (17), the second function oil circuit (11), described oil groove (15) one end is provided with oil outlet (12), and described oil outlet (12) is positioned at the same side with system relief valve (9), and the other end is provided with oil-draining screw (14); Above be provided with throttle valve (10) corresponding to the position between oil outlet (12) and system relief valve (9) at pump seat (4), described throttle valve (10) front end is connected the second function oil circuit (11); Described pump seat (4) end face is also fixed with 2/2-way solenoid directional control valve (6), and described 2/2-way solenoid directional control valve (6) front end is connected the second function oil circuit (11).
3. double suction hydraulic fluid port lift platform hydraulic power unit as claimed in claim 1, it is characterized in that: described gear pump (3) bottom has two filler openings, each described filler opening connects respectively a fuel sucking pipe (2), and fuel tank (1) bottom is stretched in described fuel sucking pipe (2) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070300.2U CN203717491U (en) | 2014-02-18 | 2014-02-18 | Double suction port hydraulic power unit for lifting platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070300.2U CN203717491U (en) | 2014-02-18 | 2014-02-18 | Double suction port hydraulic power unit for lifting platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717491U true CN203717491U (en) | 2014-07-16 |
Family
ID=51156650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070300.2U Expired - Lifetime CN203717491U (en) | 2014-02-18 | 2014-02-18 | Double suction port hydraulic power unit for lifting platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150463A (en) * | 2018-02-01 | 2018-06-12 | 浙江微力电动科技有限公司 | Integral electric hydraulic system |
| CN112901599A (en) * | 2021-01-26 | 2021-06-04 | 中车青岛四方机车车辆股份有限公司 | Hydraulic power unit, carriage lifting system and rail vehicle |
-
2014
- 2014-02-18 CN CN201420070300.2U patent/CN203717491U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150463A (en) * | 2018-02-01 | 2018-06-12 | 浙江微力电动科技有限公司 | Integral electric hydraulic system |
| CN112901599A (en) * | 2021-01-26 | 2021-06-04 | 中车青岛四方机车车辆股份有限公司 | Hydraulic power unit, carriage lifting system and rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214112 225, Jiangsu, Wuxi, New Town Industrial Zone Patentee after: Buch Hydraulic (Wuxi) Co.,Ltd. Address before: 214112 No. 225, tin Tai Road, Mei Village, Wuxi New District, Jiangsu Patentee before: WUXI DELI FLUID TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |