CN102642794A - Movable arm lifting device of forklift loader - Google Patents
Movable arm lifting device of forklift loader Download PDFInfo
- Publication number
- CN102642794A CN102642794A CN2012101317255A CN201210131725A CN102642794A CN 102642794 A CN102642794 A CN 102642794A CN 2012101317255 A CN2012101317255 A CN 2012101317255A CN 201210131725 A CN201210131725 A CN 201210131725A CN 102642794 A CN102642794 A CN 102642794A
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- cylinders
- movable arm
- piston rods
- swing arm
- translation
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a movable arm lifting device of a forklift loader. The movable arm lifting device comprises a movable arm. Three pairs of cylinders used for keeping a horizontal angle of a pallet fork unchanged during lifting are connected onto the movable arm, tipping cylinders are mounted in front of the movable arm, piston rods are pivotally connected with the pallet fork, and the other ends of the piston rods are fixed onto the movable arm; piston rods of translation cylinders and piston rods of movable arm cylinders are fixed onto the movable arm, and the other ends of the piston rods of the translation cylinders and the other ends of the piston rods of the movable arm cylinders are mounted on a frame; and front cavities of the tipping cylinders are connected with front cavities of the translation cylinders in parallel by oil pipes, and rear cavities of the tipping cylinders are connected with rear cavities of the translation cylinders in parallel by oil pipes. When the movable arm is lifted, the piston rods of the translation cylinders extend out, hydraulic oil in the front cavities of the translation cylinders is supplemented to the front cavities of the tipping cylinders, accordingly, the piston rods of the tipping cylinders retract, and the angle of the pallet fork keeps unchanged when the movable arm is lifted. When lifted, the carried goods are horizontally taken and placed safely and effectively.
Description
Technical field
The present invention relates to field of engineering technology, particularly a kind of fork installation moved arm lifting device.
Background technology
Along with expanding economy; China is increasing to the needs of fork installation in all trades and professions, such as: fields such as airport, aerospace, petrochemical complex, machine up, electric power, military project, boats and ships, harbour, mine, hotel property, supermarket storage, logistics carrying, municipal and environment-friendly, building operation, automobile.
Existing fork installation lifting device comprises swing arm, pallet fork; Car body wherein also is equipped with rocking arm, pull bar, during work on the swing arm; Moved arm lifting, and pallet fork is fixed on the swing arm, a little is that circular motion is done in the center of circle so swing arm connects to ground with swing arm together with pallet fork; After pallet fork raise, its angle more and more tilted, and might have following problem:
One, because pallet fork is a bevelled, the goods among this drops easily, causes safety problem; In some occasion, can't realize the requirement that the goods pulsation-free is placed;
Two, rocker-type blocks driver vision easily, is not easy operation.
Summary of the invention
The object of the present invention is to provide a kind of fork installation moved arm lifting device, the level angle of pallet fork is not changed, and the operation visual field of chaufeur is openr.
In order to reach above-mentioned purpose, the solution that the present invention taked is following:
A kind of fork installation moved arm lifting device comprises swing arm, dump ram, boom cylinder, translation oil cylinder; Wherein, dump ram is installed in the swing arm front portion, and the piston rod of dump ram and pallet fork articulate, and the other end of dump ram is fixed on the swing arm; And the piston rod of translation oil cylinder and boom cylinder is fixed on the swing arm, and the other end is installed on the vehicle frame; The ante-chamber of dump ram and translation oil cylinder and ante-chamber, back cavity are parallelly connected with oil pipe with back cavity.
As preferably, oil pipe is fixed on the swing arm.
As preferably, dump ram is consistent with the directivity of swing arm forearm.
Adopt after the technique scheme, when swing arm promoted, the piston rod of translation oil cylinder stretched out; Hydraulic oil in the oil cylinder ante-chamber is compressed the ante-chamber that is supplemented to dump ram; Thereby make the piston rod indentation of dump ram, when reaching the swing arm lifting, the horizontal angle of pallet fork remains unchanged.
The beneficial effect that the present invention has is:
When having realized transporting goods lifting, flat making even put, and the visual field of chaufeur is openr, so more safe and effective.
Description of drawings
Fig. 1 is the not scheme drawing during lifting of swing arm
Fig. 3 is the exploded view of Fig. 1
Scheme drawing when Fig. 2 is moved arm lifting
Dump ram 21
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further described.
As shown in Figure 2, a kind of fork installation moved arm lifting device comprises swing arm 1, dump ram 21, translation oil cylinder 22, boom cylinder 23; Wherein, dump ram 21 is installed in swing arm 1 front portion, and piston rod 3 articulates with pallet fork 4, when the piston rod 3 of dump ram 21 stretches out, promote pallet fork 4 with swing arm 1 pivoting point be that circular motion is done in the center of circle; The other end is fixed on the swing arm 1, and is consistent with the directivity of swing arm 1 forearm; The piston rod 3 of dump ram 21 and boom cylinder 23 is fixed on the swing arm 1, and the other end is installed on the vehicle frame 12; The ante-chamber of dump ram 21 and dump ram 22 and ante-chamber, back cavity are parallelly connected with oil pipe 5 with back cavity, and hydraulic oil can pass through oil pipe 5 free-flowing between two oil cylinders.
As shown in Figure 4, when forklift truck begins lifting, earlier through hydraulic oil being pressed into the back cavity of boom cylinder 23; The piston rod 3 of boom cylinder 23 stretches out gradually, and swing arm 1 begins to promote, and the piston rod 3 that drives dump ram 22 stretches out; Hydraulic oil in dump ram 22 ante-chambers is compressed the ante-chamber that is supplemented to dump ram 21; Thereby make piston rod 3 indentations of dump ram 21, when reaching swing arm 1 lifting, the horizontal angle of pallet fork 4 remains unchanged.
Because swing arm 1 needs the range-amplitude display of lifting than higher; The volume ratio of boom cylinder 23 is bigger, so the present invention is not that to say that boom cylinder 23 and dump ram 21 carry out parallelly connected, but through the less dump ram 22 of a volumes is installed; Through shortening the move distance of dump ram 22 piston rods 3; The move distance that promotes pallet fork 4 with dump ram 21 is complementary, thereby realizes swing arm of the present invention when promoting, and the level angle of pallet fork remains unchanged.
As preferably, oil pipe 5 is fixed on the swing arm 1, and hydraulic oil is flowing between each oil cylinder more smoothly.
Above-mentionedly be merely specific embodiment of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (3)
1. a fork installation moved arm lifting device is characterized in that: comprise swing arm, dump ram, boom cylinder, translation oil cylinder; Wherein, dump ram is installed in the swing arm front portion, and piston rod and pallet fork articulate, and the other end is fixed on the swing arm; The piston rod of translation oil cylinder and boom cylinder is fixed on the swing arm, and the other end is installed on the vehicle frame; The ante-chamber of dump ram and translation oil cylinder and ante-chamber, back cavity are parallelly connected with oil pipe with back cavity.
2. a kind of fork installation moved arm lifting device according to claim 1, it is characterized in that: oil pipe is fixed on oil cylinder and the swing arm.
3. a kind of fork installation moved arm lifting device according to claim 1, it is characterized in that: dump ram is consistent with the directivity of swing arm forearm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101317255A CN102642794A (en) | 2012-05-02 | 2012-05-02 | Movable arm lifting device of forklift loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101317255A CN102642794A (en) | 2012-05-02 | 2012-05-02 | Movable arm lifting device of forklift loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102642794A true CN102642794A (en) | 2012-08-22 |
Family
ID=46655927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101317255A Pending CN102642794A (en) | 2012-05-02 | 2012-05-02 | Movable arm lifting device of forklift loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102642794A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828749A (en) * | 2015-05-08 | 2015-08-12 | 福建晋工机械有限公司 | Driving arm mechanism for wheel type forking machine |
| CN104846862A (en) * | 2015-05-08 | 2015-08-19 | 福建晋工机械有限公司 | Wheel type fork loader |
| CN107055412A (en) * | 2016-12-15 | 2017-08-18 | 荣成中磊石材有限公司 | A kind of lifting device for pitching installation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3843004A (en) * | 1973-07-20 | 1974-10-22 | Toyo Umpanki Co Ltd | Loading tool control apparatus for loading vehicles |
| CN201334343Y (en) * | 2008-12-30 | 2009-10-28 | 上海太腾机械设备有限公司 | Self-leveling device for attachment of telescopic boom forklift truck |
| CN101734576A (en) * | 2009-12-29 | 2010-06-16 | 中国人民解放军总后勤部建筑工程研究所 | All-terrain high-speed telescopic arm forklift truck |
| CN201525732U (en) * | 2009-09-23 | 2010-07-14 | 湖南山河智能机械股份有限公司 | Telescopic arm forklift fork automatic leveling device |
| CN102180428A (en) * | 2011-04-29 | 2011-09-14 | 中国人民解放军总后勤部建筑工程研究所 | Mini multifunctional cross-country forktruck |
| CN202558561U (en) * | 2012-05-02 | 2012-11-28 | 厦门市嘉盛工程机械有限公司 | Forklift loader movable arm lifting device |
-
2012
- 2012-05-02 CN CN2012101317255A patent/CN102642794A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3843004A (en) * | 1973-07-20 | 1974-10-22 | Toyo Umpanki Co Ltd | Loading tool control apparatus for loading vehicles |
| CN201334343Y (en) * | 2008-12-30 | 2009-10-28 | 上海太腾机械设备有限公司 | Self-leveling device for attachment of telescopic boom forklift truck |
| CN201525732U (en) * | 2009-09-23 | 2010-07-14 | 湖南山河智能机械股份有限公司 | Telescopic arm forklift fork automatic leveling device |
| CN101734576A (en) * | 2009-12-29 | 2010-06-16 | 中国人民解放军总后勤部建筑工程研究所 | All-terrain high-speed telescopic arm forklift truck |
| CN102180428A (en) * | 2011-04-29 | 2011-09-14 | 中国人民解放军总后勤部建筑工程研究所 | Mini multifunctional cross-country forktruck |
| CN202558561U (en) * | 2012-05-02 | 2012-11-28 | 厦门市嘉盛工程机械有限公司 | Forklift loader movable arm lifting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828749A (en) * | 2015-05-08 | 2015-08-12 | 福建晋工机械有限公司 | Driving arm mechanism for wheel type forking machine |
| CN104846862A (en) * | 2015-05-08 | 2015-08-19 | 福建晋工机械有限公司 | Wheel type fork loader |
| CN107055412A (en) * | 2016-12-15 | 2017-08-18 | 荣成中磊石材有限公司 | A kind of lifting device for pitching installation |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |