CN202729711U - Wide visual field forklift portal frame - Google Patents
Wide visual field forklift portal frame Download PDFInfo
- Publication number
- CN202729711U CN202729711U CN 201220057317 CN201220057317U CN202729711U CN 202729711 U CN202729711 U CN 202729711U CN 201220057317 CN201220057317 CN 201220057317 CN 201220057317 U CN201220057317 U CN 201220057317U CN 202729711 U CN202729711 U CN 202729711U
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- CN
- China
- Prior art keywords
- portal frame
- door frame
- outer mast
- chain
- inner upright
- 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 - Fee Related
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model discloses a wide visual field forklift portal frame which comprises an inner portal frame and an outer portal frame. The outer portal frame is provided with an outer portal frame guide rail; the inner portal frame is provided with an inner portal frame guide rail; the inner portal frame can move along the inner portal frame guide rail; the outer portal frame is provided with a portal frame supporting rotating shaft; the outer portal frame is connected with a fork arm carrier with a rail; the rail of the fork arm carrier is connected with a pair of forks; the fork arm carrier is lifted and descended along the inner portal frame rail; each portal frame is provided with a lifting oil cylinder with a piston rod and a lifting chain which are connected with each other; each lifting oil cylinder is connected with a hydraulic system; each lifting chain is connected with the fork arm carrier; the lifting oil cylinders and the lifting chains are externally arranged outside left and right outer uprights of the outer portal frame; the portal frame supporting rotating shaft is arranged at the bottom of the outer portal frame; and the vertical center line of the portal frame supporting rotating shaft is coincided with the vertical center lines of the outer uprights of the outer portal frame and the vertical center lines of the lifting oil cylinders. According to the utility model, the visual field of an operator is widened and the lateral stability and the use reliability in the process of lifting cargoes are also improved.
Description
Technical field
The utility model relates to the forklift door frame of fork truck, particularly relates to the wide visual field fork lift door frame of range of observation broadness.
Background technology
Fork truck is one of visual plant of carrying vehicle, and described forklift door frame is very important in a fork truck equipment main component, and described forklift door frame structure technology level will directly have influence on performance and the result of use of fork truck equipment.At present, the both at home and abroad lift oil tank of similar forklift door frame and the back of the door frame column that the hoisting chain majority is built in forklift door frame, its shortcoming is the part visual field that has stopped the operator, affects the quality of operational sequence.
The utility model content
Technical problem to be solved in the utility model is exactly in order to overcome the weak point of above-mentioned situation, a kind of wide visual field fork lift door frame of widening the operator visual field to be provided.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of wide visual field fork lift door frame, comprise that a band is left, the inner upright mounting of right inside column and a band are left, the outer mast of right outside column, described outer mast is provided with the outer mast guide rail, described inner upright mounting is provided with the inner upright mounting guide rail, described inner upright mounting can be along described outer mast guide rail movement, described outer mast is provided with the door frame supporting revolving shaft, described outer mast connects the goods shelf of a belt track, described goods shelf track connects a pair of pallet fork, described goods shelf is along the lifting of described inner upright mounting track, described door frame is provided with interconnective lift oil tank with piston rod and the chain that hoists, described lift oil tank is connected with hydraulic efficiency pressure system, the described chain that hoists is connected with described goods shelf, it is characterized in that, described lift oil tank and the chain that hoists are placed on the left side of described outer mast, the outside of right outside column; Described door frame supporting shaft is arranged on the bottom of described outer mast, and the vertical center line of the vertical center line of described door frame supporting revolving shaft and the outer column of described outer mast, the vertical center line of described lift oil tank coincide.
The described chain that hoists disposes sprocket wheel, and described sprocket wheel disposes chain pulley seat, and described chain pulley seat is fixed on the crossbeam at described inner upright mounting top, and described chain pulley seat is connected with the top of the piston rod of described oil cylinder.
One end of the described chain that hoists is connected with described goods shelf, and the other end of the described chain that hoists is connected with described outer mast upper end.
Compared with prior art, the utility model has the advantage of, widened operator's the visual field, the lateral stability when having improved simultaneously cargo lifting and reliability of service.The utlity model has simple for structure rationally, the kinematic accuracy of flexible movements, door frame is high, the advantage of long service life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is schematic perspective view of the present utility model.
Fig. 4 is the right side view of Fig. 1.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 to Fig. 4 has provided the specific embodiment of the wide visual field fork lift door frame of the utility model.This wide visual field fork lift door frame comprises with the inner upright mounting 10 of left and right column 11 and an outer mast 20 with left and right outer column 21.One hoist chain 40 and lift oil tank 30 respectively is set in the outside of the left and right outer column 21 of outer mast 20.
The vertical center line of the left and right outer column 21 of the vertical center line of door frame supporting shaft 23 and outer mast 20, the vertical center line of lift oil tank 30 coincide.It has solved inner upright mounting 10 in the existing forklift door frame and the large problem of manufacture difficulty of outer mast 20, makes technique simple, and productive costs reduces.Simultaneously solve again inner upright mounting 10 and goods shelf 50 stuck phenomenon when zero load descends, improved the kinematic accuracy of door frame.Be exactly improved preferably door frame and oil cylinder when heavily loaded stressed in addition, prolonged the service life of door frame track and roller.Lift oil tank 30 and the chain that hoists are placed on the door frame both sides, have improved the stressing conditions of lift oil tank 30, reduced the wearing and tearing of lift oil tank, the lateral stability when having improved cargo lifting has been widened operator's the visual field.Door frame supporting shaft 23 is arranged the bottom centre of outer mast 20 left and right outer pillars 21, can be larger reduce door frame and do the hypsokinesis campaign time pulling force, make that stressed on the lift oil tank of inclination reduces, ILS.
The principle of work of the wide visual field fork lift door frame of the utility model is: the goods shelf 50 that is connected with outer mast 20 is linked in together by roller 60 and inner upright mounting 10, and goods shelf 50 can be along inner orbit 12 liftings of inner upright mounting 10.Roller 60 is equipped with in the upper end of the lower end of inner upright mounting 10 and outer mast 20, makes the inner upright mounting 10 can be along outer guide 22 liftings of outer mast 20, and pallet fork 51 is contained on the track of goods shelf 50, but and direction along ng a path adjust distance between two pallet forks 51.
When the oil inlet of pressure oil below lift oil tank 30 of hydraulic efficiency pressure system enters lift oil tank 30, under the effect of pressure oil, pushing piston bar 31 upward movements, both sides chain pulley seat 42 on the inner upright mounting 10 links to each other with the top of piston rod 31, this moment is under the promotion of piston rod 31, inner upright mounting 1 is along outer guide 22 upward movements of outer mast 20, and this moment, the lifting velocity of inner upright mounting 1 race was consistent with the ascending velocity of piston rod 31.
The sprocket wheel 41 that drives on the crossbeam 13 that is contained in inner upright mounting 10 when inner upright mounting 10 rises rises together, hoist chain 40 on sprocket wheel 41, hoist two of chain 40 two ends and connect first end and link to each other with chain stays 52 on the goods shelf 50, the other end links to each other with the chain stays 24 of outer mast 20 upper ends, when rising with inner upright mounting 10, sprocket wheel 41 rotates simultaneously, the drive chain stays 52 that chain 40 links to each other with goods shelf 50 that hoists rises, under the pulling of chain force, goods shelf 50 rises along inner upright mounting 10, pallet fork 51 together rises with goods shelf 50, and this moment, the speed of pallet fork 51 and goods shelf 5 was twices of piston rod 31 ascending velocity in the lift oil tank 30.
The wide visual field fork lift door frame structure of the utility model compares with at present domestic and international similar forklift door frame, and difference is that the lift oil tank of this door frame and the chain that hoists are placed on the dual-side of door frame column; The supporting-point of door frame is in the bottom at door frame column center, makes the structure of door frame more succinct, and is stressed more reasonable, the easier assurance of the kinematic accuracy of door frame, and production technology is simpler can to reduce cost of manufacture again.
Claims (3)
1. wide visual field fork lift door frame, comprise that a band is left, the inner upright mounting of right inside column and a band are left, the outer mast of right outside column, described outer mast is provided with the outer mast guide rail, described inner upright mounting is provided with the inner upright mounting guide rail, described inner upright mounting can be along described outer mast guide rail movement, described outer mast is provided with the door frame supporting revolving shaft, described outer mast connects the goods shelf of a belt track, described goods shelf track connects a pair of pallet fork, described goods shelf is along the lifting of described inner upright mounting track, described door frame is provided with interconnective lift oil tank with piston rod and the chain that hoists, described lift oil tank is connected with hydraulic efficiency pressure system, the described chain that hoists is connected with described goods shelf, it is characterized in that, described lift oil tank and the chain that hoists are placed on the left side of described outer mast, the outside of right outside column; Described door frame supporting shaft is arranged on the bottom of described outer mast, and the vertical center line of the vertical center line of described door frame supporting revolving shaft and the outer column of described outer mast, the vertical center line of described lift oil tank coincide.
2. a kind of wide visual field fork lift door frame as claimed in claim 1, it is characterized in that the described chain that hoists disposes sprocket wheel, described sprocket wheel disposes chain pulley seat, described chain pulley seat is fixed on the crossbeam at described inner upright mounting top, and described chain pulley seat is connected with the top of the piston rod of described oil cylinder.
3. a kind of wide visual field fork lift door frame as claimed in claim 1 is characterized in that, an end of the described chain that hoists is connected with described goods shelf, and the other end of the described chain that hoists is connected with described outer mast upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220057317 CN202729711U (en) | 2012-02-21 | 2012-02-21 | Wide visual field forklift portal frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220057317 CN202729711U (en) | 2012-02-21 | 2012-02-21 | Wide visual field forklift portal frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202729711U true CN202729711U (en) | 2013-02-13 |
Family
ID=47655432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220057317 Expired - Fee Related CN202729711U (en) | 2012-02-21 | 2012-02-21 | Wide visual field forklift portal frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202729711U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342317A (en) * | 2013-07-31 | 2013-10-09 | 安徽合力股份有限公司 | Two-joint completely free portal frame of forklift truck without disturbance of visual field |
| CN103407940A (en) * | 2013-08-22 | 2013-11-27 | 安徽合力股份有限公司 | Wide-view forklift two-stage all-free portal frame |
| CN105129681A (en) * | 2015-08-26 | 2015-12-09 | 陈松涛 | Multi-spader parallel lifting device |
-
2012
- 2012-02-21 CN CN 201220057317 patent/CN202729711U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342317A (en) * | 2013-07-31 | 2013-10-09 | 安徽合力股份有限公司 | Two-joint completely free portal frame of forklift truck without disturbance of visual field |
| CN103342317B (en) * | 2013-07-31 | 2015-06-03 | 安徽合力股份有限公司 | Two-joint completely free portal frame of forklift truck without disturbance of visual field |
| CN103407940A (en) * | 2013-08-22 | 2013-11-27 | 安徽合力股份有限公司 | Wide-view forklift two-stage all-free portal frame |
| CN103407940B (en) * | 2013-08-22 | 2015-08-12 | 安徽合力股份有限公司 | There is the full free gantry of fork truck two-stage in the wide visual field |
| CN105129681A (en) * | 2015-08-26 | 2015-12-09 | 陈松涛 | Multi-spader parallel lifting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20130221 |