CN107416736A - A kind of hydraulic forklift adjusting means - Google Patents
A kind of hydraulic forklift adjusting means Download PDFInfo
- Publication number
- CN107416736A CN107416736A CN201710750278.4A CN201710750278A CN107416736A CN 107416736 A CN107416736 A CN 107416736A CN 201710750278 A CN201710750278 A CN 201710750278A CN 107416736 A CN107416736 A CN 107416736A
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- CN
- China
- Prior art keywords
- oil
- oil groove
- hydraulic
- adjusting means
- valve
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Geology (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a kind of hydraulic forklift adjusting means, mainly solves the problem of driving force present in prior art is poor, and lifting weight is small.The adjusting means includes the oil groove of built-in hydraulic oil, the gear pump that import is arranged in oil groove, suppressed for hydraulic oil, the non-return valve of gear pump outlet is arranged on, import is connected with non-return valve, exports the three position four-way directional control valve being connected with oil groove, and the oil cylinder being connected with reversal valve.One piece of filter screen for being used to filter oil return is vertically arranged in oil groove, the spiracle that an oiling is vented is set at the top of the oil groove.By such scheme, the present invention has the advantages that driving force is strong, operation is quick, raising is steady, has very high practical value and promotional value in crane gear field.
Description
Technical field
The present invention relates to crane gear field, especially a kind of hydraulic forklift adjusting means.
Background technology
Fork truck is industrial transportation vehicle, refers to load and unload member pallet cargo, stacking and short distance hauling operation
Various wheeled carrying vehicles.Fork truck includes bodywork system, drive system, electrical source of power, pallet fork, door type frame, hoisting mechanism etc..
During use, pallet fork is used to support object, promotes fork truck to can be achieved to carry, its structure is relatively simple, carries laborsaving, efficiency
It is improved significantly, is widely used in the places such as station, harbour, airport, factory, warehouse.At present, most fork truck uses
Motor drive chain, pallet fork raising is thus driven, it is disadvantageous in that, driving force is poor, and lifting weight is small.
The content of the invention
It is an object of the invention to provide a kind of hydraulic forklift adjusting means, mainly solves to drive present in prior art
Ability, the problem of lifting weight is small.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of hydraulic forklift adjusting means, includes the oil groove of built-in hydraulic oil, and import is arranged in oil groove, for hydraulic oil
The gear pump suppressed, is arranged on the non-return valve of gear pump outlet, and import is connected with non-return valve, exports three four be connected with oil groove
Logical reversal valve, and the oil cylinder being connected with reversal valve, wherein, the end of oil cylinder is connected with pallet fork.
Preferably, one piece of filter screen for being used to filter oil return is vertically arranged in oil groove, sets an oiling to arrange at the top of the oil groove
The spiracle of gas.
Further, oil cylinder includes the upper oil gun F being connected respectively with three position four-way directional control valve and lower oil gun E.
Compared with prior art, the invention has the advantages that：
(1) present invention takes full advantage of the characteristics of hydraulic oil compression small volume, and the side of lifting pallet fork is suppressed by gear pump
Formula realizes Articles transfer, and it lifts driving force and is obviously improved compared with chain mode, moreover, during driving required power of motor compared with
It is small, realize energy saving.Moreover, by setting three position four-way directional control valve, its operation is quicker, there is provided handling efficiency.
(2) on the other hand, filter screen is set in oil groove, filters hydraulic oil oil return, the problem of effectively oil circuit being avoided to block,
Make fork truck lifting process more steady.The spiracle for setting an oiling to be vented at the top of oil groove, convenient detection oil, is the later stage
Addition or replacing hydraulic oil provide safeguard.The present invention has the advantages that driving force is strong, operation is quick, raising is steady, is rising
Heavy equipment field has very high practical value and promotional value.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In above-mentioned accompanying drawing, component names are as follows corresponding to reference：
1- oil grooves, 2- gear pumps, 3- oil cylinders, 4- non-return valves, 5- three position four-way directional control valves, 6- filter screens, 7- spiracles.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include but is not limited to
The following example.
Embodiment
As shown in figure 1, a kind of hydraulic forklift adjusting means, include the oil groove 1 of built-in hydraulic oil, import is arranged on oil groove 1
Gear pump 2 that is interior, being suppressed for hydraulic oil, is arranged on the non-return valve 4 of gear pump outlet, import is connected with non-return valve 4, export with
The three position four-way directional control valve 5 that oil groove 1 connects, and the oil cylinder 3 being connected with reversal valve 5.Oil cylinder 3 is connected with pallet fork, passes through oil cylinder 3
The flexible lifting for realizing pallet fork.
One piece of filter screen 6 for being used to filter oil return is vertically arranged in the oil groove 1 of the adjusting means, one is set at the top of the oil groove
The spiracle 7 of oiling exhaust.
The oil cylinder 3 of the adjusting means includes the upper oil gun F being connected respectively with three position four-way directional control valve 5 and lower oil gun E
The lifting process of oil cylinder 3 is briefly described below：
First, the valve element of three position four-way directional control valve 5 is moved to the left, and the A of three position four-way directional control valve 5 connects with P, B with T.
Secondly, the progress of starter receiver pump 2 hydraulic oil is suppressed, and hydraulic oil is successively by gear pump 2, non-return valve 4,3-position 4-way
The B and T of reversal valve 5, into the lower oil gun E of oil cylinder 3.
Then, upper oil gun F oil return enters the bottom of oil groove 1 by the P and A of three position four-way directional control valve 5, and lifting terminates, tooth
Wheel pump 2 is out of service, and oil circuit is blocked in the runback of three position four-way directional control valve 5.
Finally, when oil cylinder 3 declines, the valve element of three position four-way directional control valve 5 moves right, now, three position four-way directional control valve 5
A connects with T, B with P.The hydraulic oil that gear pump 2 is suppressed is successively by non-return valve 4, the B and P of three position four-way directional control valve 5, into oil
The upper oil gun F of cylinder 3.T and A of the hydraulic oil oil return of oil cylinder 3 through three position four-way directional control valve 5, into the bottom of oil groove 1, complete oil
Cylinder 3.
Above-described embodiment is only the preferred embodiments of the present invention, not limiting the scope of the invention, as long as using
The design principle of the present invention, and the change for carrying out non-creativeness work on this basis and making, all should belong to the present invention's
Within protection domain.
Claims (3)
1. a kind of hydraulic forklift adjusting means, it is characterised in that the oil groove (1) including built-in hydraulic oil, import is arranged on oil groove
(1) gear pump (2) that is interior, being suppressed for hydraulic oil, is arranged on the non-return valve (4) of gear pump outlet, and import connects with non-return valve (4)
Connect, export the three position four-way directional control valve (5) being connected with oil groove (1), and the oil cylinder (3) being connected with reversal valve (5).
2. a kind of hydraulic forklift adjusting means according to claim 1, it is characterised in that vertically set in the oil groove (1)
One piece of filter screen (6) for being used to filter oil return is put, the spiracle (7) that an oiling is vented is set at the top of the oil groove.
3. a kind of hydraulic forklift adjusting means according to claim 1, it is characterised in that the oil cylinder (3) includes difference
The upper oil gun F and lower oil gun E being connected with three position four-way directional control valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750278.4A CN107416736A (en) | 2017-08-28 | 2017-08-28 | A kind of hydraulic forklift adjusting means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750278.4A CN107416736A (en) | 2017-08-28 | 2017-08-28 | A kind of hydraulic forklift adjusting means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107416736A true CN107416736A (en) | 2017-12-01 |
Family
ID=60434983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710750278.4A Pending CN107416736A (en) | 2017-08-28 | 2017-08-28 | A kind of hydraulic forklift adjusting means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107416736A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0812298A (en) * | 1994-07-05 | 1996-01-16 | Toyota Autom Loom Works Ltd | Cargo handling control device for battery type industrial vehicle |
| CN204942114U (en) * | 2015-07-15 | 2016-01-06 | 邵阳明华液压阀门有限公司 | The special oil distrbuting box of a kind of double hydraulic system elevation scheme brake hydraulic station |
| CN107032265A (en) * | 2017-05-04 | 2017-08-11 | 西华大学 | It is a kind of to be used for the direct electric drive pump control energy conserving system of double mast forklift trucks |
| CN207361717U (en) * | 2017-08-28 | 2018-05-15 | 成都翰道科技有限公司 | A kind of hydraulic forklift regulating device |
-
2017
- 2017-08-28 CN CN201710750278.4A patent/CN107416736A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0812298A (en) * | 1994-07-05 | 1996-01-16 | Toyota Autom Loom Works Ltd | Cargo handling control device for battery type industrial vehicle |
| CN204942114U (en) * | 2015-07-15 | 2016-01-06 | 邵阳明华液压阀门有限公司 | The special oil distrbuting box of a kind of double hydraulic system elevation scheme brake hydraulic station |
| CN107032265A (en) * | 2017-05-04 | 2017-08-11 | 西华大学 | It is a kind of to be used for the direct electric drive pump control energy conserving system of double mast forklift trucks |
| CN207361717U (en) * | 2017-08-28 | 2018-05-15 | 成都翰道科技有限公司 | A kind of hydraulic forklift regulating device |
Non-Patent Citations (1)
| Title |
|---|
| 湛从昌等编著: "《液压可靠性与故障诊断》", 31 August 2009, 冶金工业出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |