CN202245956U - Lifting device of forklift loader - Google Patents
Lifting device of forklift loader Download PDFInfo
- Publication number
- CN202245956U CN202245956U CN2011203205946U CN201120320594U CN202245956U CN 202245956 U CN202245956 U CN 202245956U CN 2011203205946 U CN2011203205946 U CN 2011203205946U CN 201120320594 U CN201120320594 U CN 201120320594U CN 202245956 U CN202245956 U CN 202245956U
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- CN
- China
- Prior art keywords
- movable arm
- swing arm
- oil cylinder
- installation
- fork
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a lifting device of a forklift loader. The lifting device comprises a fork, a movable arm and a movable arm oil cylinder, wherein the two ends of the movable arm are respectively articulated on the vehicle frame of the forklift loader and the lower part of the fork; the movable arm oil cylinder is a single lug type oil cylinder and is provided with a cylinder body and a piston rod; two ends of the cylinder body are articulated to the vehicle frame of the forklift loader through a hinged shaft; the piston rod is articulated on the movable arm through the lug arranged at the end part of the piston rod, and the hinged joint is located between the hinged joints of the two ends of the movable arm. In the lifting device of the novel forklift loader, with the adoption of the middle hinged shaft connection mode, the movable arm oil cylinder ensures that the movable arm has bigger lifting force in the range of the whole height; through the middle hinged shaft connection mode, the movable arm oil cylinder ensures that the mechanical stability of the movable arm oil cylinder during extending is better than that of the double-lug type oil cylinder which is articulated to the forklift loader through the lugs arranged at the end parts of the cylinder body.
Description
Technical field
The utility model relates to a kind of fork installation, particularly relates to a kind of bont of pitching installation.
Background technology
Shown in Fig. 1-2, the bont of existing fork installation, comprise an end be hinged on swing arm 2 ' on the vehicle frame of fork installation, be hinged on the goods bucket 1 ' of the swing arm 2 ' other end, in order to drive the boom cylinder 3 ' that goods bucket 1 ' goes up and down; Boom cylinder 3 ' adopts ears ring type oil cylinder; The earrings of its cylinder body one end is hinged on the vehicle frame of fork installation; The earrings of its piston rod one end is hinged on the swing arm 2 ' and hinge-point is positioned between the hinge-point at swing arm 2 ' two ends, and boom cylinder 3 ' can adopt vertical mounting means horizontal or as shown in Figure 2 as shown in Figure 1.The concrete structure of the bont of existing fork installation and the fit in the fork installation thereof are all continued to use the swing arm bont of existing loader.
But the bont of fork installation is continued to use the bont of loader and unreasonable; Loader be the requirement equipment in that bigger rise power is arranged below one meter, after the scraper bowl of loader left bank, the material of scraper bowl was heavy, swing arm does not need very big rise power when a high position; And the job specification of fork installation is the vehicle that the loading and unloading material is used, and requires swing arm that bigger rise power all will be arranged on omnidistance height; Because the boom cylinder 3 ' in the fork installation adopts the long ears ring type oil cylinder of axial dimension; Moment when satisfying low level; The installation hinge that boom cylinder 3 ' is positioned at cylinder ends is provided with as far as possible backward; Like this when boom cylinder 3 ' when extreme lower position is threaded to the extreme higher position, the installation hinge of swing arm 2 ' on the vehicle frame of fork installation is that so-called moment B1, B2 sharply drop to A1, A2 to the distance of boom cylinder 3 ' axis; Rotating torque A1, the A2 of back swing arm 2 ' descend too much because swing arm 2 ' raises, so when fork installation material was in a high position, the load-carrying capacity of fork installation declined to a great extent.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of bont that makes pallet fork has high-bearing capacity when a high position fork installation.
In order to reach above-mentioned purpose, the solution of the utility model is:
A kind of bont of pitching installation comprises pallet fork, swing arm and boom cylinder; The two ends of this swing arm are hinged on the vehicle frame of pitching installation respectively and the bottom of this pallet fork; Wherein: said boom cylinder is a monaural ring type oil cylinder; Said boom cylinder has cylinder body and piston rod; Be hinged on the vehicle frame of fork installation through hinge between the two ends of this cylinder body, the earrings that this piston rod is provided with through its end be hinged on the said swing arm and hinge-point between the hinge-point at said swing arm two ends.
After adopting said structure; The bont of the utility model fork installation has following beneficial effect: boom cylinder adopts monaural ring type oil cylinder; Earrings on the piston rod of boom cylinder is hinged on the swing arm; Along with the expanding-contracting action of the piston rod of boom cylinder, promote swing arm and on the installation hinge of one of which end, screw off and drive the pallet fork that its other end installs and carry out lift work; Boom cylinder is assemblied on the vehicle frame of fork installation through the hinge between its cylinder body two ends; The installation hinge of boom cylinder in fork installation dwindles to itself and the distance between the swing arm hinge-point greatly, and the cylinder body that can correspondingly widen boom cylinder is being pitched the distance between the installation hinge on installing at installation hinge in the fork installation and swing arm; When swing arm is threaded to when height from low level; The installation hinge of swing arm in the fork installation is that so-called torque ratio existing structure reduces fewly to the distance between the distance of boom cylinder line of centers, and the hoisting force of swing arm when a high position is high by about 60% more than existing structure like this; That is to say that under the oil pressure and diameter of piston same case of boom cylinder, the boom cylinder of middle hinge shaft connection mode makes swing arm in omnidistance altitude range, all have bigger hoisting force; And boom cylinder is through middle hinge connection mode, and the earrings that the mechanical stability of boom cylinder when elongation also is better than through its cylinder ends is hinged on the ears ring type oil cylinder in the fork installation.
Description of drawings
Fig. 1 is the structural representation that has the bont of horizontal fork installation now;
Fig. 2 is the structural representation that has the bont of vertical fork installation now;
Fig. 3 is the structure of the bont of the utility model fork installation and the moment variations scheme drawing of boom cylinder wherein;
Fig. 4 is definite scheme drawing that the boom cylinder in the utility model is installed hinge.
Among the figure:
Goods bucket 1 ' swing arm 2 '
Boom cylinder 3 ' goods bucket 1
The specific embodiment
In order further to explain the technical scheme of the utility model, come the utility model is set forth in detail through specific embodiment below.
As shown in Figure 3, the bont of the utility model fork installation comprises pallet fork 1, swing arm 2 and boom cylinder 3.The two ends of swing arm 2 are hinged on the vehicle frame of pitching installation respectively and the bottom of pallet fork 1; Boom cylinder 3 is a monaural ring type oil cylinder; Boom cylinder 3 has cylinder body and piston rod; Be hinged on the vehicle frame of fork installation through hinge between the two ends of above-mentioned cylinder body, the earrings that above-mentioned piston rod is provided with through its end be hinged on the swing arm 2 and hinge-point between the hinge-point at swing arm 2 two ends.
The purpose of the utility model mainly is in order to improve the motion characteristics of boom cylinder 3; Adopt the less monaural ring type oil cylinder of axial dimension; And utilize hinge hinged in the centre of its cylinder body, the cylinder body that widens boom cylinder 3 is in installation hinge in the fork installation and the distance of swing arm 2 between the installation hinge in the fork installation.As shown in Figure 3, when boom cylinder 3 when extreme lower position is threaded to the extreme higher position, the installation hinge of swing arm 2 on the vehicle frame of fork installation is that so-called moment is changed to A3 by B3 to the distance of boom cylinder 3 axis; Along with the rising of swing arm 2, moment reduces lessly by B3 to A3, that is to say under the identical situation of the structure of boom cylinder 3, and the swing arm 2 in the utility model has when a high position much larger than the hoisting force of the existing arm of force 2 '.Wherein the concrete structure of pallet fork 1, swing arm 2, above-mentioned monaural ring type oil cylinder and all adopt prior art with the fit of fork installation vehicle frame etc. as known technology, repeats no more at this.
Definite method of the installation hinge of boom cylinder 3 is as shown in Figure 4; On swing arm 2, tentatively confirm the attachment point of the piston rod end earrings of a boom cylinder 3 earlier earlier; With this earrings attachment point is the center of circle; The maximum installation dimension R1 of the boom cylinder 3 when being in the extreme higher position with swing arm 2 is that radius is drawn circle, and the minimum installation dimension R2 of the boom cylinder 3 when being in extreme lower position with swing arm 2 is that radius is drawn circle, and the intersection point of two circles is exactly the attachment point of the above-mentioned hinge on the boom cylinder 3; See presence of interference earlier, adjust hoisting force then and adjust again.
The product form and the style of the foregoing description and accompanying drawing and non-limiting the utility model, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from the patent category of the utility model to its suitable variation or modification of doing.
Claims (1)
1. a bont of pitching installation comprises pallet fork, swing arm and boom cylinder; The two ends of this swing arm are hinged on the vehicle frame of pitching installation respectively and the bottom of this pallet fork; It is characterized in that: said boom cylinder is a monaural ring type oil cylinder; Said boom cylinder has cylinder body and piston rod; Be hinged on the vehicle frame of fork installation through hinge between the two ends of this cylinder body, the earrings that this piston rod is provided with through its end be hinged on the said swing arm and hinge-point between the hinge-point at said swing arm two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203205946U CN202245956U (en) | 2011-08-30 | 2011-08-30 | Lifting device of forklift loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203205946U CN202245956U (en) | 2011-08-30 | 2011-08-30 | Lifting device of forklift loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202245956U true CN202245956U (en) | 2012-05-30 |
Family
ID=46107229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203205946U Expired - Lifetime CN202245956U (en) | 2011-08-30 | 2011-08-30 | Lifting device of forklift loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202245956U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746028A (en) * | 2017-11-24 | 2018-03-02 | 芜湖金泉智能装备有限公司 | A kind of Portable forklift hoisting mechanism |
| CN107915172A (en) * | 2017-11-24 | 2018-04-17 | 芜湖金泉智能装备有限公司 | A kind of Portable forklift seat |
| CN107934853A (en) * | 2017-11-24 | 2018-04-20 | 芜湖金泉智能装备有限公司 | A kind of Portable forklift |
-
2011
- 2011-08-30 CN CN2011203205946U patent/CN202245956U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107746028A (en) * | 2017-11-24 | 2018-03-02 | 芜湖金泉智能装备有限公司 | A kind of Portable forklift hoisting mechanism |
| CN107915172A (en) * | 2017-11-24 | 2018-04-17 | 芜湖金泉智能装备有限公司 | A kind of Portable forklift seat |
| CN107934853A (en) * | 2017-11-24 | 2018-04-20 | 芜湖金泉智能装备有限公司 | A kind of Portable forklift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Lifting device of forklift loader Effective date of registration: 20161101 Granted publication date: 20120530 Pledgee: Industrial Bank, Limited by Share Ltd, Jinjiang, Anhai branch Pledgor: Fujian Jingong Machinery Co., Ltd. Registration number: 2016350000124 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |