CN202811655U - Power-off protection hydraulic power unit - Google Patents
Power-off protection hydraulic power unit Download PDFInfo
- Publication number
- CN202811655U CN202811655U CN 201220386981 CN201220386981U CN202811655U CN 202811655 U CN202811655 U CN 202811655U CN 201220386981 CN201220386981 CN 201220386981 CN 201220386981 U CN201220386981 U CN 201220386981U CN 202811655 U CN202811655 U CN 202811655U
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- CN
- China
- Prior art keywords
- hydraulic power
- protection
- valve piece
- power unit
- power
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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 - Fee Related
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Abstract
The utility model discloses a power-off protection hydraulic power unit which comprises a valve block, a motor and a fuel tank which are respectively arranged on the two sides of the valve block and a gear pump and a fuel return pipe are arranged on the end surface of a inner valve block of the fuel tank, wherein the gear pump is connected with a fuel suction pipe, a fuel outlet and a decompression valve regulator are arranged on one side of the valve block, and a control device fixing on the other side of the valve block. The control device comprises a maneuvering box, a cylinder rotary block which is in a flexible connection with the maneuvering box, a joystick which is fixed on the rotary block, a magnetic valve which controls the on and off of the valve block oil-way, a microswitch A which controls the on and off of the motor, a microswitch B which controls the on and off of the valve block oil-way and a microswitch C which controls the on and off of the magnetic valve. The power-off protection hydraulic power unit has the advantages that the utilization is convenient and swift, the working efficiency is high, the sudden lost operation and faulty operation are avoided, and the working safety is guaranteed.
Description
Technical field
The utility model relates to the hydraulics field, is specifically related to a kind of hydraulic power unit with power-off protection.
Background technique
In the machinery industry, because the advantage such as hydraulic transmission is lightweight, volume is little, motional inertia is little, reaction velocity is fast, so many products all need to provide power by hydraulics.Because hydraulic pressure can bear larger pressure and can keeping a period of time, so after hydraulic power unit provides certain power, just can no longer work by powered-down.But at present a lot of hydraulic power units do not have power-off protection; can cause after the suddenly outage of hydraulic power unit or powering-off state operator misoperation and power can't keep, cause device damage, even cause some security incidents; bring inconvenience to work, brought safely hidden danger for life.
Summary of the invention
The purpose of this utility model is: overcoming the deficiencies in the prior art, provide a kind of and can not open valve piece oil circuit because of operator's misoperation under powering-off state, is the hydraulic power unit that power can't keep.
Technical solution adopted in the utility model is:
A kind of hydraulic power unit with power-off protection; comprise the valve piece; be individually fixed in the motor at valve piece two ends; fuel tank; end face at fuel tank internal valve piece is provided with gear pump and the return tube that is connected with fuel sucking pipe; and the oil outlet of being located at valve piece one side; Decompression valves regulator and the control gear that is fixed in valve piece opposite side, described control gear comprises manipulating box; be movably connected on the switch block in the manipulating box; be fixed in the operating handle of switch block; the sensitive switch A of the solenoid valve that control valve piece oil circuit opens and closes and control motor; the sensitive switch C of the sensitive switch B that control valve piece oil circuit opens and closes and control solenoid valve.
The further improvement project of the utility model is that described switch block is cylindrical body.
The utility model further improvement project is, the arc surface of switch block is provided with groove a, groove b and groove c, contacts with the feeler lever B ' of feeler lever A ', the sensitive switch B of sensitive switch A and the feeler lever C ' of sensitive switch C respectively.
The utility model further improvement project is that the top of described manipulating box is provided with cover plate.
The utility model further improvement project is that described cover plate center is provided with oblong through hole.
The utility model further improvement project is that described operating handle passes the through hole of cover plate, and fixes by the set tapped hole of switch block arc surface.
The utility model further improvement project is that fuel tank cambered surface top is provided with oil filler.
The beneficial effects of the utility model are:
When using the utility model, behind the utility model plugged, stir operating handle, open simultaneously sensitive switch A, sensitive switch B, sensitive switch C, the electric motor starting running, the valve of valve piece oil circuit is all opened, and oil circuit becomes path, and hydraulic power unit provides power, after the outage, the sensitive switch C of electronic lock is energising not, even the operating handle misoperation, also can't make solenoid valve open valve piece oil circuit.From above-mentioned working procedure as can be known, provide hydraulic power with the utility model, not only convenient and swift, but also can guarantee safety.
Description of drawings
Fig. 1 is that the utility model master looks schematic representation.
Fig. 2 is the utility model schematic top plan view.
Fig. 3 is switch block enlarged diagram among Fig. 1.
Fig. 4 is switch block enlarged diagram among Fig. 2.
Embodiment
In conjunction with Fig. 1, shown in Figure 2, the utility model comprises valve piece 1, be individually fixed in the motor 3 at valve piece 1 two ends, fuel tank 4, end face at fuel tank 4 internal valve pieces 1 is provided with gear pump 9 and the return tube 25 that is connected with fuel sucking pipe 14, and the oil outlet 24 of being located at valve piece 1 one sides, Decompression valves regulator 26 and the control gear that is fixed in valve piece 1 opposite side, it is characterized in that: described control gear comprises manipulating box 6, be movably connected on the cylindrical body switch block 2 in the manipulating box 6, be fixed in the operating handle 5 of switch block 2, the sensitive switch A10 that the solenoid valve 8 that control valve piece 1 oil circuit opens and closes and control motor 3 open and close, the sensitive switch C7 that the sensitive switch B12 that control valve piece 1 oil circuit opens and closes and control solenoid valve 8 open and close; The top of described manipulating box 6 is provided with cover plate 11, and cover plate 11 centers are provided with oblong through hole 15, and described operating handle 5 passes through hole 15, and fixing by the set tapped hole 16 of switch block 2 arc surfaces; Fuel tank 4 cambered surface tops are provided with oil filler 23.
In conjunction with Fig. 3, shown in Figure 4, in the utility model, the arc surface of described switch block 2 is provided with groove a17, groove b18 and groove c19, contacts with the feeler lever B ' 21 of feeler lever A ' 20, the sensitive switch B12 of sensitive switch A10 and the feeler lever C ' 22 of sensitive switch C7 respectively; After stirring operating handle 5 along through hole 15, switch block 2 turns over several angle, makes the end face of feeler lever A ', feeler lever B ' and feeler lever C ' leave simultaneously respectively groove a, groove b and the groove c of switch block 2, contacts with the arc surface of switch block 2; Namely stir operating handle 5 after the energising, opened simultaneously corresponding sensitive switch A, sensitive switch B and sensitive switch C, thereby the oil circuit that makes motor 3 start running, valve piece becomes path, the utility model normally provides power; After the outage, stir operating handle 5, although opened corresponding sensitive switch A, sensitive switch B and sensitive switch C, because the electronic lock of sensitive switch C is not switched on, the unlatching of sensitive switch C also can't make solenoid valve 8 energisings open, so the oil circuit of valve piece 1 is not path; Although so motor 3 fails to start running equally, can not cause hydraulic power unit to run out of steam suddenly because of misoperation operating handle 5 yet.
Claims (7)
1. hydraulic power unit with power-off protection; comprise valve piece (1); be individually fixed in the motor (3) at valve piece (1) two ends; fuel tank (4); end face at fuel tank (4) internal valve piece (1) is provided with gear pump (9) and the return tube (25) that is connected with fuel sucking pipe (14); and the oil outlet (24) of being located at valve piece (1) one side; Decompression valves regulator (26) and be fixed in the control gear of valve piece (1) opposite side, it is characterized in that: described control gear comprises manipulating box (6); be movably connected on the switch block (2) in the manipulating box (6); be fixed in the operating handle (5) of switch block (2); the sensitive switch A(10 that the solenoid valve (8) that control valve piece (1) oil circuit opens and closes and control motor (3) open and close); the sensitive switch B(12 that control valve piece (1) oil circuit opens and closes) and the sensitive switch C(7 of control solenoid valve (8) switching).
2. a kind of hydraulic power unit with power-off protection as claimed in claim 1, it is characterized in that: described switch block (2) is cylindrical body.
3. a kind of hydraulic power unit with power-off protection as claimed in claim 2; it is characterized in that: the arc surface of switch block (2) is provided with groove a(17), groove b(18) and groove c(19), respectively with sensitive switch A(10) feeler lever A ' (20), sensitive switch B(12) feeler lever B ' (21) and sensitive switch C(7) feeler lever C ' (22) contact.
4. a kind of hydraulic power unit with power-off protection as claimed in claim 1, it is characterized in that: the top of described manipulating box (6) is provided with cover plate (11).
5. a kind of hydraulic power unit with power-off protection as claimed in claim 4, it is characterized in that: described cover plate (11) center is provided with oblong through hole (15).
6. such as claim 1 or 5 described a kind of hydraulic power units with power-off protection, it is characterized in that: described operating handle (5) passes the through hole (15) of cover plate (11), and fixing by the set tapped hole (16) of switch block (2) arc surface.
7. a kind of hydraulic power unit with power-off protection as claimed in claim 1, it is characterized in that: the cambered surface top of fuel tank (4) is provided with oil filler (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386981 CN202811655U (en) | 2012-08-07 | 2012-08-07 | Power-off protection hydraulic power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220386981 CN202811655U (en) | 2012-08-07 | 2012-08-07 | Power-off protection hydraulic power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811655U true CN202811655U (en) | 2013-03-20 |
Family
ID=47870537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220386981 Expired - Fee Related CN202811655U (en) | 2012-08-07 | 2012-08-07 | Power-off protection hydraulic power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958814A (en) * | 2017-12-29 | 2018-04-24 | 合肥和旭继电科技有限公司 | One kind is based on hydraulicdriven integrated relay |
-
2012
- 2012-08-07 CN CN 201220386981 patent/CN202811655U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107958814A (en) * | 2017-12-29 | 2018-04-24 | 合肥和旭继电科技有限公司 | One kind is based on hydraulicdriven integrated relay |
| CN107958814B (en) * | 2017-12-29 | 2019-09-06 | 合肥和旭继电科技有限公司 | One kind being based on hydraulicdriven integrated relay |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130807 |