CN108105176A - A kind of hydraulic circuit of liftable vice bench - Google Patents
A kind of hydraulic circuit of liftable vice bench Download PDFInfo
- Publication number
- CN108105176A CN108105176A CN201611053867.9A CN201611053867A CN108105176A CN 108105176 A CN108105176 A CN 108105176A CN 201611053867 A CN201611053867 A CN 201611053867A CN 108105176 A CN108105176 A CN 108105176A
- Authority
- CN
- China
- Prior art keywords
- way valve
- hydraulic circuit
- valve
- liftable
- fluid
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
- B25H1/16—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in height
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of hydraulic circuit of liftable vice bench easily can set a fixation pressure using fluid valve, ensure that workbench smoothly lifts.The hydraulic circuit can guarantee different self-locking requirements using the different Median Functions of various check valves and reversal valve, using throttle valve lifting platform can be made to switch over (stepless speed regulation) between different speed.
Description
Technical field
The present invention relates to a kind of hydraulic circuit of liftable vice bench, suitable for machinery field.
Background technology
Pincers worker at work, because everyone height is different, need to workbench also height differs.Particularly scraping pincers worker,
There is no the workbench of proper height, work together and feel gruelling.If using the method for manual adjustment, the labor of worker can be increased
Fatigue resistance reduces production efficiency.
The content of the invention
The present invention proposes a kind of hydraulic circuit of liftable vice bench, and easily one can be set using fluid valve
A fixation pressure ensures that workbench smoothly lifts.
The technical solution adopted in the present invention is：
The lifting platform Hydraulic Power Transmission System includes ascent stage, stop phase and decline stage.
In the oil return circuit of the hydraulic circuit, when fluid is constantly toward rod chamber movement, and oil liquid pressure reaches enough
Energy reverse opening hydraulic control one-way valve 6, fluid is from rodless cavity through hydraulic control one-way valve 6 through 3 oil return box of overflow valve.So as to fulfill under desktop
Drop process.
In the hydraulic circuit, when 1DT and 2DT is powered off, three position five-way valve 12 and three-position four-way valve 13 reset respectively,
Fluid is through pump to 13 middle position of three-position four-way valve, through 3 oil return box of overflow valve.Fluid is in hydraulic control one-way valve 6 and three-position four-way valve 13
Realize that self-locking stops under the action of median function.
The beneficial effects of the invention are as follows：The hydraulic circuit can be protected using the different Median Functions of various check valves and reversal valve
Different self-locking requirements are demonstrate,proved, using throttle valve lifting platform can be made to switch over (stepless speed regulation) between different speed.
Description of the drawings
Fig. 1 is the lifting platform hydraulic circuit of the present invention.
Fig. 2 is the entire control principle drawing of the testing stand of the present invention.
In figure：1. hydraulic pump；2. motor；3. overflow valve；4th, 10,11. check valve；5th, 8,9. throttle valve；6. hydraulic control list
To valve；7. hydraulic cylinder；12. 3 position-5 way solenoid directional control valve；13. 3-position 4-way hydraulic directional valve.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, lifting platform Hydraulic Power Transmission System includes ascent stage, stop phase and decline stage.
Into oil return line：Fluid is 1 from fuel tank to hydraulic pump, and when 1DT is powered, three position five-way valve 12 moves to right, fluid due to by
4 resistance of check valve, fluid to 12 left position of three position five-way valve, so as to which fluid promotes three-position four-way valve 13 to move to right.Fluid is through three four
7 rodless cavity of hydraulic cylinder is arrived in 13 left position of port valve through hydraulic control one-way valve 6.
Oil return circuit：From 7 rod chamber of hydraulic cylinder through throttle valve 5 to 13 left side of three-position four-way valve, through 3 oil return box of overflow valve.
Process is moved up so as to fulfill desktop.The effect of wherein check valve 4 is to form a pressure differential, so that fluid can flow to three five
Port valve 120
The effect of overflow valve 3：Make a counterbalance valve, raising and lowering is enable steadily to carry out.
Into oil return line：Fluid is 1 from fuel tank to hydraulic pump, and when 2DT is powered, three position five-way valve 12 moves to left, fluid due to by
4 drag effect of check valve, fluid to 12 right position of three position five-way valve promote three-position four-way valve 13 to move to left after throttle valve 8.It is so oily
Liquid is directly from pumping through check valve 4 to 13 right position of three-position four-way valve through throttle valve 5 to 7 rod chamber of hydraulic cylinder.
Oil return circuit：When fluid is constantly toward rod chamber movement, and oil liquid pressure reaches energy reverse opening hydraulic control list enough
To valve 6, fluid is from rodless cavity through hydraulic control one-way valve 6 through 3 oil return box of overflow valve.Decline process so as to fulfill desktop.
When 1DT and 2DT are powered off, three position five-way valve 12 and three-position four-way valve 13 reset respectively.Fluid is through pumping to three
13 middle position of four-way valve, through 3 oil return box of overflow valve.Fluid is under the action of 13 Median Function of hydraulic control one-way valve 6 and three-position four-way valve
Realize that self-locking stops.
Such as Fig. 2, when pressing SB1, KM1 coils is made to be powered, No. 1 KM1 is closed, and so as to fulfill the self-locking of KMl, No. 3 KM1 break
It opens, No. 7 KM1 are disconnected, and No. 5 KM1 are closed, and 1DT is made to be powered.3 position-5 way solenoid directional control valve moves to right, and testing stand rises；
When pressing SB3, each electrical equipment resets.Testing stand self-locking rests on present level；
Pressing SB2 makes KM2 coils be powered, and No. 4 KM2 are closed, and realizes self-locking, and No. 2 KM2 are disconnected, and No. 6 KM2 are disconnected, and No. 8 KM2 are closed
It closes, 2DT is powered.3 position-5 way solenoid directional control valve moves to left, and testing stand declines；
SQ1, SQ2 are upper and lower travel switch in figure.When testing stand moves past design runlength, travel switch is encountered, then stroke
Switch will will disconnect related circuit, and testing stand is made to rest on current location.
Because in the circuit of design, motor power (output) is smaller, power grid is impacted little.Therefore motor in main circuit
It is directly initiated and stopped using contactor；
QS switches are closed first, and when pressing sB4 buttons, KM buttons coil is powered, and KM main contacts are closed, and motor rotates forward, KM
Normally open contact is closed self-locking；
When pressing SB5 buttons, KM button coil blackouts, KM main contacts disconnect, and motor stops, and KM normally open contacts disconnect multiple
Position；
Contactor directly initiates the latching circuit of control circuit, and motor can not only continuously moved but also with under-voltage and mistake
Press (zero-pressure) protective effect.
Claims (3)
1. a kind of hydraulic circuit of liftable vice bench, it is characterized in that：The lifting platform Hydraulic Power Transmission System include ascent stage,
Stop phase and decline stage.
2. a kind of hydraulic circuit of liftable vice bench according to claim 1, it is characterized in that：The hydraulic circuit returns
In oil return line, when fluid is constantly toward rod chamber movement, and oil liquid pressure reaches energy reverse opening hydraulic control one-way valve 6 enough, oil
Liquid from rodless cavity through hydraulic control one-way valve 6 through 3 oil return box of overflow valve, decline process so as to fulfill desktop.
3. a kind of hydraulic circuit of liftable vice bench according to claim 1, it is characterized in that：In the hydraulic circuit,
When 1DT and 2DT are powered off, three position five-way valve 12 and three-position four-way valve 13 reset respectively, and fluid is through pump to three-position four-way valve 13
Middle position, through 3 oil return box of overflow valve, fluid realizes self-locking under the action of 13 Median Function of hydraulic control one-way valve 6 and three-position four-way valve
Stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053867.9A CN108105176A (en) | 2016-11-25 | 2016-11-25 | A kind of hydraulic circuit of liftable vice bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053867.9A CN108105176A (en) | 2016-11-25 | 2016-11-25 | A kind of hydraulic circuit of liftable vice bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108105176A true CN108105176A (en) | 2018-06-01 |
Family
ID=62204223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611053867.9A Pending CN108105176A (en) | 2016-11-25 | 2016-11-25 | A kind of hydraulic circuit of liftable vice bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015607A (en) * | 2019-12-25 | 2020-04-17 | 安徽双骏智能科技有限公司 | Auto-parts is with electric rotary worktable with self-lubricate function |
-
2016
- 2016-11-25 CN CN201611053867.9A patent/CN108105176A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111015607A (en) * | 2019-12-25 | 2020-04-17 | 安徽双骏智能科技有限公司 | Auto-parts is with electric rotary worktable with self-lubricate function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180601 |