CN200967726Y - Fluid operated fork lifter - Google Patents
Fluid operated fork lifter Download PDFInfo
- Publication number
- CN200967726Y CN200967726Y CN 200620156204 CN200620156204U CN200967726Y CN 200967726 Y CN200967726 Y CN 200967726Y CN 200620156204 CN200620156204 CN 200620156204 CN 200620156204 U CN200620156204 U CN 200620156204U CN 200967726 Y CN200967726 Y CN 200967726Y
- Authority
- CN
- China
- Prior art keywords
- chassis
- door frame
- overhead guard
- outer mast
- 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.)
- Expired - Fee Related
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model is a hydraulic operating fork lift and relates to a fork lift whose fork arm can make the tilted lifting movement ageist the chassis. The utility model solves the problem that the fork arm is easy to sway when operating. The fork lift has a chassis; four wheels, a set of drive and hydraulic operating equipment and a fork arm which is used to make the lifting operation and the lifting movement are provided on the chassis; the front end of the chassis is connected with a lifting door frame which consists of an inside door frame, a outside door frame and a lifting oil cylinder; the lifting oil cylinder is provided between the inside door frame and the outside door frame; the fork arm is provided on the inside door frame; the bottom of the outside door frame is provided with a tilted shaft which is transversely hinged with the front end of the chassis; a top protective frame is provided on the chassis; the tilted oil cylinder is provided between the top frame of the top protective frame and the upper part of the outside door frame by the way of hinging. Because the outside door frame is supported by the top protective frame during the movement, the installation position of the tilted oil cylinder is far from the tilted shaft of the outside door frame, so even the loaded weight of the fork arm is made relatively large, the swaying angel is small.
Description
Technical field
The utility model relates to pallet fork and carries out the fork truck that inclined lift is moved in the chassis relatively.
Background technology
Existing fork truck all has a chassis, and four wheels, a cover actuating device and for playing the pallet fork that retry is vertically moved are installed on the chassis.For load-carrying capacity and action radius and the dexterity of action that increases pallet fork, pallet fork be installed in one with the joining door frame that hoists in chassis on.On the hydraulic operated fork truck of representative type, the door frame that hoists is made up of inner upright mounting, outer mast and lift oil tank, lift oil tank is installed between inner upright mounting and the outer mast, and pallet fork is installed on the inner upright mounting, and the outer mast bottom establishes horizontal tilting axis and chassis front end is laterally hinged.Under the hydraulic oil effect, the piston rod of lift oil tank is made the relative outer mast with pallet fork of fore and aft motion drive inner upright mounting and is carried out dipping and heaving.In addition, between the bottom of the front vehicle wheel mudwing on chassis and outer mast dump ram is installed, under the hydraulic oil effect, the piston rod of dump ram is made fore and aft motion and is driven the wallowing motion that outer mast, the relative chassis with pallet fork of inner upright mounting carry out fore-and-aft direction.Because the installation site of dump ram is near the tilting axis of outer mast, and the front vehicle wheel mudwing intensity on chassis is limited, when the weight of pallet fork carrying was big, pallet fork can produce bigger rocking in motion process.
The utility model content
The utility model aim to provide a kind of in motion process when the weight of pallet fork carrying is big, pallet fork can not produce the hydraulic operated fork truck that rocks more greatly yet.
The technical solution of the utility model is: a kind of hydraulic operated fork truck, a chassis is arranged, and four wheels, a cover driving and hydraulic control unit are installed on the chassis reach to playing the pallet fork of retry dipping and heaving; The front end on chassis connects the door frame of being made up of inner upright mounting, outer mast and lift oil tank that hoists; Lift oil tank is installed between inner upright mounting and the outer mast, and pallet fork is installed on the inner upright mounting, and the outer mast bottom establishes tilting axis and chassis front end is laterally hinged; Overhead guard is installed on the chassis, and dump ram is installed between the top of the top frame of overhead guard and outer mast in the pivotally attached mode.Under the hydraulic oil effect, the piston rod of lift oil tank is made the relative outer mast with pallet fork of fore and aft motion drive inner upright mounting and is carried out dipping and heaving, and the piston rod of dump ram is made fore and aft motion drive outer mast, inner upright mounting and pallet fork relative tilt axle and carried out wallowing motion.Because outer mast is subjected to the support of overhead guard in motion process, and the installation site of dump ram is away from the tilting axis of outer mast, even the weight of pallet fork carrying is bigger, the angle of rocking is also very little.
The top frame of described overhead guard and four root posts adopt welding to connect.Adopt welding to improve the overall mechanical strength of overhead guard, help the amplitude that reduces to rock.
Each is hingedly fixed in four root posts of described overhead guard on the chassis by a bearing pin.Be convenient to Assembly ﹠Disassembly overhead guard on the chassis, help maintenance.
Hydraulic operated fork truck of the present utility model is installed dump ram between the top of the top frame of overhead guard and outer mast in the pivotally attached mode.Utilize mechanical strength to bear the transverse load of the door frame heeling condition that hoists than higher overhead guard, the installation site of dump ram is away from the tilting axis of outer mast in addition, rocking significantly of pallet fork reduced when the stressed leg-of-mutton stability of amplifying made loading and unloading operation, and the working stability of complete machine obviously improves.Overhead guard is whole to adopt welding to connect, and each is hingedly fixed on the chassis by a bearing pin at four root posts; The mechanical strength height, and take out each bearing pin and just can make that dump ram separates with overhead guard, overhead guard separates with the chassis, be convenient to maintenance.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the hydraulic operated fork truck of the utility model.
Fig. 2 is the overhead guard longitudinal profile structural representation of Fig. 1 embodiment.
Fig. 3 is the overhead guard plan structure scheme drawing of Fig. 1 embodiment.
The specific embodiment
The structure of an embodiment of the hydraulic operated fork truck of the utility model, as shown in Figure 1.Four wheels 2 and a cover driving and a hydraulic control unit 3 are installed on the chassis 1 of this fork truck.The front end on chassis 1 connects the door frame of being made up of inner upright mounting, outer mast and lift oil tank 4 that hoists.Lift oil tank is installed between the bottom of the bottom of outer mast and inner upright mounting, make inner upright mounting relatively outer mast move along the lifting direction, the pallet fork 41 that plays retry is fixedly mounted on the leading flank bottom of inner upright mounting.Hoisting, tilting axis is established in the outer mast bottom of door frame 4 and chassis 1 front end is laterally hinged.A lug 42 is respectively established on the hoist outer mast both side surface top of door frame 4.An overhead guard 5 has been installed on chassis 1.
The structure of overhead guard 5 is please referring to Fig. 2 and Fig. 3, the top frame 50 of overhead guard 5 both sides longitudinally respectively has a rectangular steel pipe 501 heavy in section, be provided with between the leading section of two rectangular steel pipes 501 between the rearward end of 502, two rectangular steel pipes 501 of a horizontal rectangular steel pipe heavy in section prismatic horizontal rectangular steel pipe 503 in is set; Laterally between rectangular steel pipe 502 and the horizontal rectangular steel pipe 503 two horizontal rectangular steel pipes 504 that the cross section is smaller slightly are being set equidistantly, they are welded into " order " word shape rectangle integral body jointly.In each space of top frame 50, five vertical rectangular steel pipes 505 that the cross section is less are set equidistantly.Respectively weld a lug 51 at the two ends of horizontal steel pipe 502 front side surfaces of top frame 50 front ends and the leading section inner surface intersection of two vertical steel pipes 501.Each lug 51 is provided with the hinged axis hole 511 of a lateral direction penetrating, and each lug 51 front portion cuts out an opening 512 that opens wide forward from top to bottom.The leading section downside of two vertical steel pipes 501 of top frame 50 respectively welds an A-pillar 52 that extends to the front lower place.The connection place of two A-pillar 52 upper ends and top frame 50 is respectively welded one and is strengthened gusset 507.The rearward end downside of two vertical steel pipes 501 of top frame 50 respectively welds a rear column 53 that extends to the back lower place.The connection place of two rear column 53 upper ends and top frame 50 is respectively welded one and is strengthened gusset 508.The each several part of overhead guard 5 adopts welding to be connected into a firm integral body.The bottom of two A-pillars 52 of overhead guard 5 respectively is hingedly fixed in the front portion on chassis 1 respectively by a bearing pin 54, each is hingedly fixed in the rear portion on chassis 1 respectively the bottom of two rear columns 53 of overhead guard 5 by a bearing pin 55.
In the lug 51 of the top frame 50 front end both sides of overhead guard 5 dump ram 6 is installed respectively, the cylinder sleeve follower head of each dump ram 6 is inserted in the opening 512 of a lug 51, insert the hinged axis hole 511 of this lug 51 and the axis hole of these dump ram 6 cylinder sleeve follower heads with a minor axis, they are hinged together.The piston rod front end of two dump rams 6 is inserted in respectively in the lug 42 on outer mast both side surface top of the door frame 4 that hoists, and is hinged together with the piston rod front end and the lug 42 of minor axis with cooresponding dump ram 6 respectively.
During hoisting operation: handle the lifting push rod of driving and hydraulic control unit 3, under the hydraulic oil effect, the lift oil tank piston rod of the door frame 4 that hoists is made fore and aft motion drive inner upright mounting and is carried out dipping and heaving with pallet fork 41 relative outer masts.Handle the inclination push rod of driving and hydraulic control unit 3, under the hydraulic oil effect, the piston rod of dump ram 6 is made fore and aft motion and is driven the tilting axis swing of door frame 4 around the outer mast bottom that hoist.The door frame 4 that hoists relies on and is fixed on The One On The Chassis overhead guard 5, and pallet fork 41 can carry out the inclined lift motion reposefully.Because the installation site of dump ram 6 is away from the tilting axis of outer mast, the outer mast of door frame 4 of hoisting is subjected to the support of overhead guard 5, the stressed leg-of-mutton stability of amplifying makes no matter rotate in the process of fork truck motion at four wheels 2, still the pallet fork 41 of door frame 4 of hoisting carries out the inclined lift motion, even when the weight of pallet fork 41 carrying is big, pallet fork 41 to rock angle all very little.
The above, it only is the utility model preferred embodiment, do not limit the scope that the utility model is implemented with this, the equivalence of doing according to the technical solution of the utility model and description changes and modification, for example only use a dump ram or the shape of the top frame of overhead guard is changed into ellipse or made overhead guard or the like with pipe or channel-section steel by rectangle, all should belong to the scope that the utility model is contained.
Claims (3)
1. a hydraulic operated fork truck has a chassis, four wheels, a cover driving and hydraulic control unit is installed on the chassis reaches to playing the pallet fork of retry dipping and heaving; The front end on chassis connects the door frame of being made up of inner upright mounting, outer mast and lift oil tank that hoists; Lift oil tank is installed between inner upright mounting and the outer mast, and pallet fork is installed on the inner upright mounting, and the outer mast bottom establishes tilting axis and chassis front end is laterally hinged; It is characterized in that: overhead guard is installed on the chassis, dump ram in the pivotally attached mode between the top of top frame that overhead guard is installed and outer mast.
2. a kind of hydraulic operated fork truck according to claim 1 is characterized in that: the top frame of described overhead guard and four root posts adopt welding to connect.
3. a kind of hydraulic operated fork truck according to claim 2 is characterized in that: each is hingedly fixed in four root posts of described overhead guard on the chassis by a bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620156204 CN200967726Y (en) | 2006-11-01 | 2006-11-01 | Fluid operated fork lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620156204 CN200967726Y (en) | 2006-11-01 | 2006-11-01 | Fluid operated fork lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200967726Y true CN200967726Y (en) | 2007-10-31 |
Family
ID=38967294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620156204 Expired - Fee Related CN200967726Y (en) | 2006-11-01 | 2006-11-01 | Fluid operated fork lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200967726Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444950A (en) * | 2014-11-25 | 2015-03-25 | 苏州先锋物流装备科技有限公司 | Fan-shaped overhead guard applied to forklift |
| CN105460838A (en) * | 2014-08-07 | 2016-04-06 | 雷蒙德股份有限公司 | System and method for improving lift cylinder buckling resistance |
| CN106744534A (en) * | 2016-12-06 | 2017-05-31 | 宁波海迈克动力科技有限公司 | A kind of forklift door frame control device |
| CN108147318A (en) * | 2017-12-22 | 2018-06-12 | 张建勋 | A kind of novel solar energy fork truck |
-
2006
- 2006-11-01 CN CN 200620156204 patent/CN200967726Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460838A (en) * | 2014-08-07 | 2016-04-06 | 雷蒙德股份有限公司 | System and method for improving lift cylinder buckling resistance |
| CN105460838B (en) * | 2014-08-07 | 2020-06-16 | 雷蒙德股份有限公司 | System and method for improving bending resistance of a lift cylinder |
| CN104444950A (en) * | 2014-11-25 | 2015-03-25 | 苏州先锋物流装备科技有限公司 | Fan-shaped overhead guard applied to forklift |
| CN106744534A (en) * | 2016-12-06 | 2017-05-31 | 宁波海迈克动力科技有限公司 | A kind of forklift door frame control device |
| CN108147318A (en) * | 2017-12-22 | 2018-06-12 | 张建勋 | A kind of novel solar energy fork truck |
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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: 20071031 Termination date: 20091201 |