CN207030862U - The full free lifting gate rack of three-level - Google Patents
The full free lifting gate rack of three-level Download PDFInfo
- Publication number
- CN207030862U CN207030862U CN201720925573.4U CN201720925573U CN207030862U CN 207030862 U CN207030862 U CN 207030862U CN 201720925573 U CN201720925573 U CN 201720925573U CN 207030862 U CN207030862 U CN 207030862U
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- China
- Prior art keywords
- door frame
- oil tank
- outer mast
- middle door
- lift oil
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- 239000003921 oil Substances 0.000 claims abstract description 66
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 239000000446 fuel Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a kind of full free lifting gate rack of three-level, outer mast (1) is hinged by hinge (11) and dump ram (6) with fork truck body, and dump ram (6) is used for controlling the angle of inclination of vehicle frame；It is connected between middle door frame (2) and inner upright mounting (3) provided with top in chain wheel and puts lift oil tank (4), after chain bypasses chain wheel, one end is fixed on middle door frame (2), the other end is fixed on inner upright mounting (3), in put lift oil tank (4) rise when jack up chain wheel, make chain pull inner upright mounting (3) move up；The raising of door frame (2) in setting side to put lift oil tank (5) between middle door frame (2) and outer mast (1) and being realized by same chain wheel and link chain mechanism.When lifting goods, can put lift oil tank in and the hydraulic oil that lift oil tank provides identical pressure is put on side, using the difference and inside and outside door frame weight difference of oil cylinder sectional area come realize first move in put oil cylinder and move side again and put oil cylinder.When the height for needing to rise is relatively low, inner upright mounting (3) is only acted, reduces the abrasion of equipment.
Description
Technical field
The present invention relates to a kind of forklift lifting goods device, more specifically to forklift lifting door frame.
Background technology
The mechanism of forklift lifting goods, also known as door frame.By inner upright mounting, outer mast, goods shelf, pallet fork, sprocket wheel, chain,
Lift oil tank and dump ram etc. form.Forklift door frame is the major bearing structures of fork truck load-engaging device.Traditional two-stage door frame
It is made up of inner upright mounting and outer mast, the pallet fork and crotch being suspended on crotch are moved down by means of crotch roller along inner upright mounting together
It is dynamic, drive cargo lifting or decline.Inner upright mounting is also oriented to by lift oil tank driving lifting by roller.The both sides at door frame rear are set
There is dump ram, door frame can be made to lean forward or swing back.But this traditional two-stage door frame can not meet to limit without space simultaneously
In the case of rise higher height, and in the case where there is space limitation, door frame can fall and by short Ku Men or enter
Enter short job space.
The content of the invention
The present invention provides a kind of full free lifting gate rack of three-level, can meet goods can be brought up to higher height when rising
Degree, and can be by by short Ku Men after falling, or worked under conditions of short.
In order to achieve the above object, the present invention provides a kind of full free lifting gate rack of three-level, by outer mast, middle door frame, interior
Door frame forms, and is relatively set with slideway on the inside of the outer mast, the middle door frame Basolateral is symmetrical arranged and the outer mast
The bearing being engaged；
It is provided with the inside of the middle door frame and accommodates the inner upright mounting and can slideway that separately inner upright mounting slides up and down；
The lower end both sides of the outer mast are respectively articulated with side and put lift oil tank, and the top point of lift oil tank is put in two side
Not Lian Jie both sides one-level chain wheel, two chains bypass both sides one-level chain wheel respectively, and one end is separately fixed at the external door
The two bottom sides of frame, the other end are separately fixed at the middle door frame bottom both ends；
Lift oil tank is put in being hinged in the middle part of the lower end of the middle door frame, the top connection two-stage chain of lift oil tank is put in described
Bar wheel, chain bypass the two level chain wheel, and one end is fixed in the base cross members of the middle door frame, and the other end is fixed on described
In the base cross members of inner upright mounting；
The cross-sectional area that lift oil tank internal piston is put in described puts lift oil tank internal piston more than or equal to the side
Cross-sectional area summation.
A kind of above-mentioned full free lifting gate rack of three-level, under preferred embodiment, lift oil tank is put in described and puts raising oil with side
The fuel feed hole of cylinder is connected, and is connected on hydraulic oil pipeline.
A kind of above-mentioned full free lifting gate rack of three-level, under preferred embodiment, the both ends of the one-level chain and two level chain
It is connected provided with thread segment, and by this thread segment with door frame.
A kind of above-mentioned full free lifting gate rack of three-level, under preferred embodiment, limitation institute is provided with the top of the outer mast
State the limiting mechanism that middle door frame rises to highest order；The limitation inner upright mounting is provided with the top of the middle door frame and rises to highest order
Limiting mechanism.
A kind of above-mentioned full free lifting gate rack of three-level, under preferred embodiment, the limiting mechanism is to be arranged on the external door
Limitation crossbeam on frame or on the middle door frame.
A kind of above-mentioned full free lifting gate rack of three-level, under preferred embodiment, the outer mast passes through hinge and dump ram
It is hinged on fork truck body.
A kind of above-mentioned full free lifting gate rack of three-level, under preferred embodiment, the dump ram bottom is hinged on the fork
On car body, piston rod top is hinged on outer mast.
It is an advantage of the current invention that compared to traditional two-stage portal-framed structure, the full free lifting gate rack of three-level of the present invention can
Meet fork truck have environment that space limits can with operation simultaneously in the environment of being limited without space and can by freight lifting to one
Fixed height.When lifting goods, lift oil tank can be put in simultaneously and the hydraulic oil that lift oil tank provides identical pressure is put on side,
Using the difference and inside and outside door frame weight difference of oil cylinder sectional area come cleverly realize first move in put oil cylinder again move side put oil cylinder, from
And realize the lifting sequence of movement of shelf, inner upright mounting, middle door frame.When the height for needing to rise is relatively low, inner upright mounting is only acted, this
Sample just reduces the usage time of middle door frame, reduces abrasion.
Brief description of the drawings
Fig. 1 is outer mast, middle door frame, the assembling schematic diagram of inner upright mounting；
Fig. 2 is the three-dimensional structure diagram of outer mast；
Fig. 3 is the three-dimensional structure diagram of middle door frame；
Fig. 4 is the three-dimensional structure diagram of inner upright mounting；
Fig. 5 puts the three-dimensional structure diagram of lift oil tank in being；
Fig. 6 is the three-dimensional structure diagram that lift oil tank is put on side；
Fig. 7 is the schematic perspective view that chain bypasses chain wheel；
Fig. 8 is the dimensional structure diagram of dump ram.
In figure, 1, outer mast, 2, middle door frame, 3, inner upright mounting, 4, in put lift oil tank, 5, side put lift oil tank, 6, tilt
Oil cylinder, 11, hinge, 12, outer mast slideway, 22, middle door frame slideway.
Embodiment
As shown in Figures 1 to 4, the full free lifting gate rack of a kind of three-level, it is made up of outer mast 1, middle door frame 2, inner upright mounting 3,
The inner side of outer mast 1 is relatively set with outer mast slideway 12, and the middle Basolateral of door frame 2 is symmetrical arranged to be engaged with the outer mast 1
Bearing wheel；The inner side of middle door frame 2, which is provided with, accommodates the inner upright mounting 3 and can middle door frame slideway 22 that separately inner upright mounting 3 slides up and down；
As shown in Fig. 5 to Fig. 8, the lower end both sides of outer mast 1 are respectively articulated with side and put lift oil tank 5, and raising oil is put in two sides
The top of cylinder 5 connects the one-level chain wheel of both sides respectively, and two chains bypass both sides one-level chain wheel respectively, and one end is fixed respectively
In the two bottom sides of the outer mast, the other end is that working end is separately fixed at the middle door frame bottom both ends；
In the middle part of the lower end of middle door frame 2 it is be hinged in put lift oil tank 4, in put the top connection two level chain wheel of lift oil tank 4,
Chain bypasses the two level chain wheel, and one end is fixed in the base cross members of the middle door frame 2, and the other end is fixed on the inside door
In the base cross members of frame 3.
On the basis of above-mentioned, in put the cross-sectional area of the internal piston of lift oil tank 4 and put raising more than or equal to the side
The summation of the cross-sectional area of the internal piston of oil cylinder 5.In put lift oil tank 4 fuel feed hole of lift oil tank 5 put with side and be connected, and even
It is connected on hydraulic oil pipeline.
The both ends of one-level chain and two level chain are provided with thread segment, and are connected by this thread segment with door frame.
The limiting mechanism for limiting the middle door frame 2 and rising to highest order is provided with the top of outer mast 1；Pushed up in middle door frame 2
Portion, which is provided with, limits the limiting mechanism that the inner upright mounting 1 rises to highest order.Limiting mechanism is is arranged on the outer mast 1 or institute
State the limitation crossbeam on door frame 2.
Outer mast 1 is hinged on fork truck body by hinge 11.The bottom of dump ram 6 is hinged on the fork truck body,
The piston rod top of dump ram 6 is hinged on outer mast 1.
When rising door frame, lift oil tank 4 and side can be put in simultaneously put the fuel feed hole of lift oil tank 5 and be passed through identical pressure
Hydraulic oil, if in put the cross-sectional area of the internal piston of lift oil tank 4 and put the transversal of the internal piston of lift oil tank 5 equal to the side
The summation of area, therefore in the case that internally hydraulic oil pressure is equal, lifting force also must be equal.Lift oil tank 4 is put due in
Act only on inner upright mounting, and lift oil tank 5 is put on the side of both sides while acts on inner upright mounting and outer mast, thus in put lift oil tank meeting
First inner upright mounting (3) is jacked up, when inner upright mounting (3) rises to restriction site, the side of both sides puts lift oil tank and starts to act, by
Door frame (2) jacks up simultaneously with inner upright mounting (3).If the cross-sectional area that the internal piston of lift oil tank 4 is put in puts raising oil more than side
The summation of the cross-sectional area of the internal piston of cylinder 5, then in put lift oil tank (4) lifting force be more than both sides side put lift oil tank
(5) summation of lifting force, and the weight of inner upright mounting (3) is necessarily smaller than the summation of inner upright mounting (3) and middle door frame (2) weight, therefore still
It is so that inner upright mounting (3) first rises.
Central to promote chain wheel to move up first when putting lift oil tank 4 and being raised above, chain is wound on chain wheel, and one
End is fixed on middle door frame (2), and the other end is that working end is fixed on inner upright mounting.After chain wheel moves up, working end is driven
Move up, chain wheel is similar to movable pulley, and when chain wheel moves up a unit height, then the working end of chain drives
The inner upright mounting (3) being attached thereto rises two unit heights.
Put principle and described above original of the door frame (2) with inner upright mounting (3) in lift oil tank raising in the side of outer mast (1) both sides
Manage identical, will not be repeated here.
Outer mast (1) is hinged on fork truck body by hinge (11), is set and is inclined again between fork truck body and outer mast (1)
Oblique oil cylinder (6) can adjust the overall gradient of door frame, facilitate the slotting of goods to take and put down.
The full free lifting gate rack of three-level is to meet that fork truck can be with operation simultaneously without sky in the environment for having space limitation
Between limit in the environment of and can freight lifting to certain height is designed.
It by full free cylinder (middle oil cylinder), two sides put lift cylinder, inner upright mounting, middle door frame, outer mast, goods shelf and
Other annexes form.
It completes lifting by full free cylinder, lift oil tank relay.Equivalent to one inverted movable pulley of its running part,
One end of chain is fixed, and the other end is working end.Oil cylinder among chain often raises a height, and the working end of chain is just
Lift two height.Pipeline pressure is identical, and oil cylinder is put in utilization and the difference of oil cylinder sectional area and inside and outside door frame weight difference are put in side
Not come cleverly realize first move in put oil cylinder again move side put oil cylinder, so as to realize shelf, inner upright mounting, middle door frame lifting action it is suitable
Sequence.Such structure and hydraulic operation logic just determine that its realization is freely lifted.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of full free lifting gate rack of three-level, it is made up of outer mast (1), middle door frame (2), inner upright mounting (3), the outer mast
(1) inner side is relatively set with outer mast slideway (12), and middle door frame (2) Basolateral is symmetrical arranged and the outer mast (1)
The bearing wheel being engaged；
It is provided with the inside of the middle door frame (2) and accommodates the inner upright mounting (3) and can middle door frame that separately inner upright mounting (3) slides up and down
Slideway (22)；
The lower end both sides of the outer mast (1) are respectively articulated with side and put lift oil tank (5), and lift oil tank (5) is put in two side
Top connects the one-level chain wheel of both sides respectively, and two chains bypass both sides one-level chain wheel respectively, and one end is separately fixed at institute
The two bottom sides of outer mast are stated, the other end is separately fixed at the middle door frame bottom both ends；
Lift oil tank (4) is put in being hinged in the middle part of the lower end of the middle door frame (2), the top connection of lift oil tank (4) is put in described
Two level chain wheel, chain bypass the two level chain wheel, and one end is fixed in the base cross members of the middle door frame (2), the other end
It is fixed in the base cross members of the inner upright mounting (3), it is characterised in that：
The cross-sectional area that lift oil tank (4) internal piston is put in described puts the work of lift oil tank (5) inside more than or equal to the side
The summation of the cross-sectional area of plug.
2. the full free lifting gate rack of three-level according to claim 1, it is characterised in that put in described lift oil tank (4) with
While the fuel feed hole for putting lift oil tank (5) is connected, and it is connected on hydraulic oil pipeline.
3. the full free lifting gate rack of three-level according to claim 1, it is characterised in that the one-level chain and two level chain
Both ends be provided with thread segment, and be connected by this thread segment with door frame.
4. the full free lifting gate rack of three-level according to claim 1, it is characterised in that at the top of the outer mast (1)
The limiting mechanism of highest order is risen to provided with the limitation middle door frame (2)；It is provided with and is limited in described at the top of the middle door frame (2)
Door frame (1) rises to the limiting mechanism of highest order.
5. the full free lifting gate rack of three-level according to claim 4, it is characterised in that the limiting mechanism is is arranged on
State the limitation crossbeam on outer mast (1) or on the middle door frame (2).
6. the full free lifting gate rack of three-level according to claim 1, it is characterised in that the outer mast (1) passes through hinge
(11) and dump ram (6) is hinged on fork truck body.
7. the full free lifting gate rack of three-level according to claim 6, it is characterised in that dump ram (6) the bottom hinge
It is connected on the fork truck body, piston rod top is hinged on outer mast (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925573.4U CN207030862U (en) | 2017-07-27 | 2017-07-27 | The full free lifting gate rack of three-level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720925573.4U CN207030862U (en) | 2017-07-27 | 2017-07-27 | The full free lifting gate rack of three-level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207030862U true CN207030862U (en) | 2018-02-23 |
Family
ID=61462237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720925573.4U Active CN207030862U (en) | 2017-07-27 | 2017-07-27 | The full free lifting gate rack of three-level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207030862U (en) |
-
2017
- 2017-07-27 CN CN201720925573.4U patent/CN207030862U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Three level fully free lifting gantry Granted publication date: 20180223 Pledgee: Agricultural Bank of China Limited Dalian Lvshunkou Sub-branch Pledgor: DALIAN YIXINDA MACHINERY MANUFACTURING Co.,Ltd. Registration number: Y2024980007353 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |