CN208829198U - A kind of forklift automatic hydraulic levelling device - Google Patents
A kind of forklift automatic hydraulic levelling device Download PDFInfo
- Publication number
- CN208829198U CN208829198U CN201821650320.1U CN201821650320U CN208829198U CN 208829198 U CN208829198 U CN 208829198U CN 201821650320 U CN201821650320 U CN 201821650320U CN 208829198 U CN208829198 U CN 208829198U
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- oil cylinder
- working arm
- leveling cyclinder
- vehicle frame
- 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.)
- Active
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to a kind of forklift automatic hydraulic levelling devices, it includes vehicle frame, working arm, palette fork, leveling cyclinder and overturning oil cylinder, and one end of working arm is hinged by pin shaft B and vehicle frame, and the other end of working arm is hinged by pin shaft D and palette fork；Hinged by pin shaft C equipped with leveling cyclinder, the piston rod end earrings of leveling cyclinder and working arm tail portion between working arm and vehicle frame, the cylinder bottom end earrings of leveling cyclinder is connected on vehicle frame by pin shaft A with vehicle frame；Connecting rod is arranged on pin shaft D in the palette fork, the other end of connecting rod is connected with the piston rod end earrings of overturning oil cylinder by pin shaft F, and the cylinder bottom end earrings of overturning oil cylinder is connected with working arm by pin shaft E；The rodless cavity of the leveling cyclinder is connected with the rodless cavity of overturning oil cylinder by high-pressure hose I, and the rod chamber of leveling cyclinder is connected with the rod chamber of overturning oil cylinder by high-pressure hose II；The structure solves the problems, such as that electro-hydraulic leveling brings manufacture and maintenance cost to increase.
Description
Technical field
The utility model belongs to field of mechanical technique, and in particular to a kind of forklift automatic hydraulic levelling device.
Background technique
It is well known that the levelling mechanism of existing forklift palette fork mostly uses electro-hydraulic leveling mode, no matter electro-hydraulic automatic leveling
Or electric-hydraulic proportion leveling, leveling process is continuous, steady, and control precision is high, and leveling performance is good, and response is fast.
The shortcomings that prior art:
Although electro-hydraulic leveling mode leveling precision is high, leveling is stable and reliable for performance, and complete machine is required to increase leveling sensing
A series of electrical components such as device.In addition, failure is not easy investigation and solves, manufacture during entire levelling function is realized
Cost and maintenance cost increase more.
Utility model content
A kind of forklift automatic hydraulic leveling dress is provided the purpose of the utility model is to overcome the deficiencies in the prior art
It sets, which forklift leveling cyclinder and overturning oil cylinder parameter and piping connection are arranged using Triangle Principle and rationally, solve
Electro-hydraulic leveling brings the problem of manufacture and maintenance cost increase.
In order to achieve the above object, the utility model adopts the following technical solution:
The utility model provides a kind of forklift automatic hydraulic levelling device, it include vehicle frame, working arm, palette fork,
Leveling cyclinder and overturning oil cylinder, one end of working arm is hinged by pin shaft B and vehicle frame, the other end of working arm by pin shaft D and
Palette fork is hinged；Working arm close to the side of vehicle frame is equipped with working arm tail portion, and leveling is equipped between working arm tail portion and vehicle frame
Oil cylinder, the piston rod end earrings of leveling cyclinder and working arm tail portion are hinged by pin shaft C, the cylinder bottom end earrings of leveling cyclinder
It is connected on vehicle frame by pin shaft A with vehicle frame, forms triangular structure between pin shaft A, pin shaft B and pin shaft C；In the palette fork
Pin shaft D on be arranged with connecting rod, the other end of connecting rod is connected with the piston rod end earrings of overturning oil cylinder by pin shaft F,
The cylinder bottom end earrings of overturning oil cylinder is connected with working arm by pin shaft E；Triangle is formed between pin shaft D, pin shaft E and pin shaft F
Shape structure；The rodless cavity of the leveling cyclinder is connected with the rodless cavity of overturning oil cylinder by high-pressure hose I, and leveling cyclinder has bar
Chamber is connected with the rod chamber of overturning oil cylinder by high-pressure hose II, and high-pressure hose I and high-pressure hose II are by leveling cyclinder and overturning
Oil cylinder forms closed-loop system.
According to above-mentioned forklift automatic hydraulic levelling device, the leveling cyclinder and overturning oil cylinder are same specification oil
The overhang of cylinder, leveling cyclinder is identical with overturning oil cylinder retraction amount.
According to above-mentioned forklift automatic hydraulic levelling device, the working arm end close to the side of palette fork is to roll over downwards
The top of curved bending structure, the bending part of bending structure is equipped with pin shaft E.
Pin shaft D and connecting rod one according to above-mentioned forklift automatic hydraulic levelling device, on described connecting rod one end
Pin shaft F on end, which is embedded in, to be arranged on the fixed part of palette fork.
Compared with prior art, the utility model obtain the utility model has the advantages that
The utility model structure is by utilizing Triangle Principle, and reasonable Arrangement leveling cyclinder and overturning oil cylinder are in complete machine
Position of articulating point, it is unified specification parameter that leveling cyclinder and overturning oil cylinder, which is arranged, by the rodless cavity of leveling cyclinder and overturning oil cylinder
Rodless cavity is connected, and the rod chamber of leveling cyclinder is connected with the rod chamber of overturning oil cylinder；The structure do not increase complete machine manufacture at
On the basis of this, ensure that forklift in the entire motion process of working arm, palette fork it is hydraulic self-leveling continuous reliable.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Referring to Fig.1 shown in, the utility model provides a kind of forklift automatic hydraulic levelling device, it include vehicle frame 1,
One end of working arm 2, palette fork 3, leveling cyclinder 4 and overturning oil cylinder 5, working arm 2 is hinged by pin shaft B and vehicle frame 1, working arm 2
The other end it is hinged by pin shaft D and palette fork 3；Working arm close to the side of vehicle frame is equipped with working arm tail portion 6, working arm tail
Leveling cyclinder 4 is equipped between portion 6 and vehicle frame 1, the piston rod end earrings of leveling cyclinder 4 and working arm tail portion 6 pass through pin shaft
C103 is hinged, and the cylinder bottom end earrings of leveling cyclinder 4 is connected on vehicle frame by pin shaft A101 with vehicle frame 1, pin shaft A101, pin
Triangular structure is formed between axis B102 and pin shaft C103；It is arranged with connecting rod 7 on pin shaft D104 in the palette fork 3, connects
The other end of bar 7 is connected with the piston rod end earrings of overturning oil cylinder 5 by pin shaft F, the cylinder bottom end earrings of overturning oil cylinder 5 with
Working arm 2 is connected by pin shaft E105；Triangular structure is formed between pin shaft D104, pin shaft E105 and pin shaft F106；It is described
The rodless cavity of leveling cyclinder is connected with the rodless cavity of overturning oil cylinder by high-pressure hose I8, the rod chamber and overturning oil of leveling cyclinder
The rod chamber of cylinder is connected by high-pressure hose II9, and high-pressure hose I8 and high-pressure hose II9 form leveling cyclinder and overturning oil cylinder
Closed-loop system, leveling cyclinder 4 and overturning oil cylinder 5 are same specification oil cylinder, the retraction of the overhang and overturning oil cylinder 5 of leveling cyclinder 4
It measures identical.
The pin shaft F on 7 one end pin shaft D and connecting rod in order to realize operating stably for palette fork, on described 7 one end of connecting rod
Insertion is arranged on the fixed part of palette fork 3, and the working arm end close to the side of palette fork is the bending structure of downward bending, folding
The top of the bending part of kinking structure is equipped with pin shaft E.
The working principle of the utility model structure:
Triangle ABC where two oil cylinder hinges and triangle EDF in reference to the accompanying drawings are two reciprocal congruences three
Angular design, when working arm rises, working arm and horizontal plane angle α increase, and palette fork angle with horizontal plane β reduces, i.e. AB=ED,
When BC=DF, ∠ ABC increase, ∠ EDF is synchronous to be reduced, and makes the side AC of triangle ABC in most short and longest state in always
On line, and then guarantee that angle angle α incrementss and angle beta reduction amount are approximately equal, to realize that palette fork begins in working arm uphill process
It keeps eventually horizontal.Similarly, when working arm declines.Under the premise of not increasing any manufacturing cost, palette fork is finally realized
Hydraulic automatic leveling in the entire motion process of working arm.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as
The protection scope of the utility model.
Claims (4)
1. a kind of forklift automatic hydraulic levelling device, it is characterised in that it includes vehicle frame, working arm, palette fork, leveling cyclinder
And overturning oil cylinder, one end of working arm is hinged by pin shaft B and vehicle frame, and the other end of working arm is hinged by pin shaft D and palette fork；
Working arm close to the side of vehicle frame is equipped with working arm tail portion, and leveling cyclinder, leveling are equipped between working arm tail portion and vehicle frame
The piston rod end earrings of oil cylinder and working arm tail portion are hinged by pin shaft C, and the cylinder bottom end earrings and vehicle frame of leveling cyclinder exist
It is connected on vehicle frame by pin shaft A, forms triangular structure between pin shaft A, pin shaft B and pin shaft C；Pin shaft D in the palette fork
On be arranged with connecting rod, the other end of connecting rod is connected with the piston rod end earrings of overturning oil cylinder by pin shaft F, overturning oil cylinder
Cylinder bottom end earrings be connected with working arm by pin shaft E；Triangular structure is formed between pin shaft D, pin shaft E and pin shaft F；Institute
The rodless cavity for stating leveling cyclinder is connected with the rodless cavity of overturning oil cylinder by high-pressure hose I, the rod chamber of leveling cyclinder and overturning
The rod chamber of oil cylinder is connected by high-pressure hose II, and high-pressure hose I and high-pressure hose II form leveling cyclinder and overturning oil cylinder
Closed-loop system.
2. forklift according to claim 1 automatic hydraulic levelling device, it is characterised in that: the leveling cyclinder and turn over
Turning oil cylinder is same specification oil cylinder, and the overhang of leveling cyclinder is identical with overturning oil cylinder retraction amount.
3. forklift according to claim 1 automatic hydraulic levelling device, it is characterised in that: close to the side of palette fork
Working arm end is the bending structure of downward bending, and the top of the bending part of bending structure is equipped with pin shaft E.
4. forklift according to claim 1 automatic hydraulic levelling device, it is characterised in that: on described connecting rod one end
Pin shaft D and connecting rod one end on pin shaft F be embedded in and be arranged on the fixed part of palette fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821650320.1U CN208829198U (en) | 2018-10-11 | 2018-10-11 | A kind of forklift automatic hydraulic levelling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821650320.1U CN208829198U (en) | 2018-10-11 | 2018-10-11 | A kind of forklift automatic hydraulic levelling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208829198U true CN208829198U (en) | 2019-05-07 |
Family
ID=66318898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821650320.1U Active CN208829198U (en) | 2018-10-11 | 2018-10-11 | A kind of forklift automatic hydraulic levelling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208829198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052237A (en) * | 2018-10-11 | 2018-12-21 | 河南垣发专用车辆集团有限公司 | A kind of forklift automatic hydraulic levelling device |
-
2018
- 2018-10-11 CN CN201821650320.1U patent/CN208829198U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052237A (en) * | 2018-10-11 | 2018-12-21 | 河南垣发专用车辆集团有限公司 | A kind of forklift automatic hydraulic levelling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101298311B (en) | High-lift operation vehicle working bucket leveling mechanism | |
| WO2021259254A1 (en) | Crane telescopic boom and crane | |
| CN208829198U (en) | A kind of forklift automatic hydraulic levelling device | |
| CN105366604A (en) | Working bucket leveling mechanism of hydraulic aerial cage | |
| CN109052237A (en) | A kind of forklift automatic hydraulic levelling device | |
| CN105819384B (en) | Connecting rod amplifying type lifting mechanism | |
| CN203724673U (en) | Leveling device, rotary table leveling system and fire fighting truck | |
| CN109268052B (en) | Drawer type hydraulic support of scissor fork mechanism | |
| CN103771287A (en) | Multi-cylinder synchronous lifting mechanism | |
| CN107140557B (en) | Special arm support structure for wind power and crane | |
| CN205740104U (en) | A kind of novel variable cross section truss arm standard knot | |
| CN203022353U (en) | Folding boom of concrete pump truck | |
| CN106185657B (en) | A kind of extending formula crane gear balance weight mechanism | |
| CN205527451U (en) | Hoist is with full closed -type hydraulic system | |
| CN209618741U (en) | A kind of fixed bracket of crane | |
| CN208034628U (en) | A kind of levelling mechanism of engineering machinery | |
| CN111377381A (en) | Leveling method and device for high-altitude working platform | |
| CN201209109Y (en) | Working bucket leveling mechanism for aerial platform truck | |
| CN205170326U (en) | Working bucket leveling mechanism for aerial platform truck | |
| CN109896444B (en) | Tower crane innovative luffing structure | |
| CN209837133U (en) | Movable arm gravity counteracting mechanism of excavator | |
| CN201209107Y (en) | Working bucket leveling mechanism for aerial platform truck | |
| CN205663220U (en) | Pump truck is with 5 sections cantilever cranes | |
| CN203558766U (en) | Multipoint variable-amplitude lorry-mounted crane | |
| CN209065309U (en) | A kind of spliced climbing mechanism applied to derrick crane for building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |