CN202063684U - Lateral shifting and distance adjusting device for pallet fork of fork truck - Google Patents
Lateral shifting and distance adjusting device for pallet fork of fork truck Download PDFInfo
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- CN202063684U CN202063684U CN2011201660528U CN201120166052U CN202063684U CN 202063684 U CN202063684 U CN 202063684U CN 2011201660528 U CN2011201660528 U CN 2011201660528U CN 201120166052 U CN201120166052 U CN 201120166052U CN 202063684 U CN202063684 U CN 202063684U
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- oil cylinder
- pallet fork
- return pipe
- oil inlet
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Abstract
The utility model discloses a lateral shifting and distance adjusting device for a pallet fork of a fork truck. The device at least comprises an oil cylinder I, an oil cylinder II and a hydraulic pipeline, wherein both the oil cylinder I and the oil cylinder II are connected with the hydraulic pipeline; and the hydraulic pipeline at least comprises a front-end oil supply pipeline, a function switching pipeline and a multi-way valve used for connecting the hydraulic pipeline with an oil supply pipeline of the fork truck. The function switching pipeline can generate two groups of independently-working oil lines on the front-end oil supply pipeline in a combining manner, and the two groups of oil lines are in noninterference with each other. By the utilization of the lateral shifting and distance adjusting device for the pallet fork of the fork truck, only two oil cylinders and a set of oil supply pipeline are needed for a fork truck assembly to achieve lateral shifting and distance adjusting functions and further achieve the lateral shifting function of a single pallet fork, so that the distance adjusting purpose is realized through the lateral shifting of the single pallet fork, and the positioning function of the pallet fork on a pallet fork rack is also realized.
Description
Technical field
The utility model relates to a kind of pallet fork sidesway roll-setting gear of fork truck, relates in particular to the oil channel structures of this pallet fork sidesway roll-setting gear.
Background technology
The pallet fork of fork truck has the roll adjustment function, separates between the pallet fork or closes up but existing pallet fork roll adjustment function is only limited to.On August 4th, 1999 disclosed Chinese patent, patent name is the special-purpose roll-setting gear of novel forklift pallet fork, Granted publication number discloses a kind of pallet fork roll-setting gear that pallet fork closes up and separates that is used to control in the patent of CN2331651Y.At least comprise two pallet forks in this device, and a hydraulic tubing that promotes this pallet fork.Two pallet forks are movably arranged on the pallet fork assembly, and controlled by two oil cylinders.Oil cylinder and hydraulic tubing are communicated with, and the oil-feed mode of oil cylinder is all identical, and latter two oil cylinder of promptly working stretches out simultaneously or withdraws.Oil cylinder is installed on the pallet fork assembly in opposite directions, and oil cylinder stretches out then pallet fork separately simultaneously during work, and oil cylinder withdraws simultaneously then that pallet fork closes up.The pallet fork number becomes one to one relation with the oil cylinder number in the pallet fork roll-setting gear of this structure, promptly must be by pallet fork motion of an oil cylinder control.The pallet fork assembly roll adjustment function of a plurality of pallet forks be to realize like this, more oil cylinder and additional corresponding oil circuit then must be equipped with.The shortcoming that has complex structure, function singleness.
In order more to adapt to changeable operating needs, also disclose in the prior art a kind of both can roll adjustment, pallet fork sidesway roll-setting gear that again can sidesway.On September 20th, 2006 disclosed Chinese patent, patent name is an integral side displacement range regulation fork of large tonnage fork lift, Granted publication number is for disclosing the pallet fork assembly of a kind of sidesway, roll adjustment combination in the patent of CN1833994A.This integral side displacement range regulation fork of large tonnage fork lift comprises interior goods shelf, preceding goods shelf and two pallet forks, preceding goods shelf is for falling a door shape, its middle part level is provided with pallet fork load-bearing axle, two pallet fork tops socket respectively pallet fork load-bearing axle, interior goods shelf vertically is positioned at preceding goods shelf rear portion, interior goods shelf top is fixedly connected with horizontal axle sleeve, the load-bearing axle is plugged in the axle sleeve, the both sides upright arm of goods shelf before load-bearing axle two ends difference captive joint, load-bearing axle parallel beneath is provided with the sidesway oil cylinder, one end of sidesway oil cylinder is connecting preceding goods shelf one side upright arm, and the other end is connecting the axle sleeve outside; The afterbody of the roll adjustment oil cylinder that the upright arm inboard, both sides of preceding goods shelf is connecting respectively, head one end of left side roll adjustment oil cylinder is connecting right fork, and head one end of right side roll adjustment oil cylinder is connecting left pallet fork; On the inner upright mounting of interior goods shelf installation and fork truck.When sidesway was adjusted, the sidesway oil cylinder was under the oil pressure that the fork truck hydraulic efficiency pressure system provides, and goods shelf moves the sway of realization with respect to interior goods shelf by load-bearing axle and cooperating of axle sleeve before promoting.During the roll adjustment motion, left and right sides roll adjustment oil cylinder is promoting left and right sides roll adjustment fork respectively in the roll adjustment function of closing up or separating that realizes on the pallet fork load-bearing axle between the pallet fork under the oil pressure that the fork truck hydraulic efficiency pressure system provides.
Though the pallet fork sidesway roll-setting gear of said structure has played the function of sidesway and roll adjustment, must guarantee the oil circuit participation work that has two groups to work alone, promptly be used for the oil circuit of sidesway and be used for the oil circuit of roll adjustment; Also need at least three oil cylinders, promptly be used for oil cylinder of sidesway and be used for two oil cylinders of roll adjustment.So this apparatus structure complexity, the productive costs height.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of pallet fork sidesway roll-setting gear of simple in structure, fork truck that productive costs is low.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the pallet fork side shifting type roll-setting gear of this fork truck comprises oil cylinder I at least, oil cylinder II and hydraulic tubing, described oil cylinder I, oil cylinder II is connected with hydraulic tubing, described hydraulic tubing comprises the front end oil feed line at least, function is switched pipeline, described front end oil feed line comprises oil inlet I at least, oil inlet II and oil return pipe I, described oil inlet I is connected with the oil inlet of oil cylinder I, described oil inlet II is connected with the oil inlet of oil cylinder II, described oil return pipe I and oil cylinder I, the oil outlet of oil cylinder II connects, described function is switched pipeline and is comprised oil return pipe II at least, oil inlet III, oil return pipe III, the oil inlet IV, described oil return pipe II is connected with oil return pipe I, described oil inlet III is connected with oil inlet I by four-way cock, described oil inlet III is connected with oil return pipe III by four-way cock, described oil inlet IV is connected with oil inlet II by triple valve, be connected by the electromagnetism oil circuit between described four-way cock and the triple valve, described hydraulic tubing also comprises and being used for and fork truck oil feed line bonded assembly multiway valve, described oil return pipe II, oil inlet III, oil return pipe III, the oil inlet IV is connected on the multiway valve.
In the utility model function switch pipeline can be on the front end oil feed line two groups of oil circuits that work alone of combination results, and do not disturb mutually between two groups of oil circuits.Oil pressure is after forming application force on oil cylinder I, the oil cylinder II, and oil cylinder I, oil cylinder II work alone, and removable whole pallet forks behind the oil cylinder promotion pallet fork are finished roll adjustment, sidesway function, can also realize single pallet fork sidesway, and then the roll adjustment function that plays.
As of the present utility model preferred, described electromagnetism oil circuit comprises an electromagnetic valve at least, is connected by pipeline between described electromagnetic valve and the four-way cock, is connected by pipeline between described electromagnetic valve and the triple valve.
The utility model adopts technique scheme: after utilizing the pallet fork sidesway roll-setting gear of fork truck, the fork truck assembly only needs two oil cylinders and can realize sidesway, roll adjustment function once the cover oil feed line, in addition can also realize the function of single pallet fork sidesway, and then pass through the purpose that the single pallet fork of sidesway is realized roll adjustment, also realized the positioning function of pallet fork on goods shelf.The pallet fork sidesway roll-setting gear of this fork truck is simple in structure, productive costs is low, and the roll adjustment scope of realization is wide, sidesway is adjusted perfect in shape and function.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described in detail.
Fig. 1 is the constructional drawing of the pallet fork sidesway roll-setting gear of a kind of fork truck of the utility model.
The specific embodiment
Two pallet forks of fork truck are installed on the goods shelf, and oil cylinder I 1 and oil cylinder II 2 also are installed on the goods shelf, and the flexible end of oil cylinder I 1 and the flexible end of oil cylinder II 2 are in opposite directions and right.Fork truck is provided with pallet fork sidesway roll-setting gear, and this installs except that oil cylinder I 1 and oil cylinder II 2, also has a cover hydraulic tubing.As shown in Figure 1, hydraulic tubing has comprised front end oil feed line 3 and function switching pipeline 7, and one is convenient to hydraulic tubing and fork truck master oil feed line bonded assembly multiway valve 16.
Front end oil feed line 3 comprises oil inlet I 4, oil inlet II 5 and oil return pipe I 6.Oil inlet I 4 is connected on the oil inlet of oil cylinder I 1; Oil inlet II 5 is connected on the oil inlet of oil cylinder II 2; Oil return pipe I 6 is connected with the oil outlet of oil cylinder I 1, oil cylinder II 2.For the ease of connecting, oil return pipe I 6 was connected with the oil outlet of oil cylinder II 2 by a triple valve before this, connects auxiliary oil pipe then and be connected with the oil outlet of oil cylinder I 1 on triple valve.After the connection, oil inlet I 4 is communicated with the oil inlet of oil cylinder I 1; Oil inlet II 5 is communicated with the oil inlet of oil cylinder II 2; Oil return pipe I 6 is communicated with the oil outlet of oil cylinder I 1, oil cylinder II 2.
Function is switched pipeline 7 and is comprised oil return pipe II 8, oil inlet III9, oil return pipe III10, oil inlet IV 11.The end of oil return pipe II 8 is connected with one of them interface of multiway valve 16, and the other end is connected with oil return pipe I 6.The end of oil inlet III9 is connected with one of them interface of multiway valve 16, and the other end is connected with a four-way cock 12, connects oil inlet I 4 on the interface of this four-way cock 12; The end of oil return pipe III10 is connected with one of them interface of multiway valve 16, and the other end is connected on the interface of four-way cock 12.Oil inlet IV 11 1 ends are connected with one of them interface of multiway valve 16, and the other end connects a triple valve 13, and an interface of this triple valve 13 is connected with oil inlet II 5.Between this triple valve 13 and four-way cock 12, be connected with electromagnetism oil circuit 14.Comprise a bidirectional electromagnetic valve 15 in the electromagnetism oil circuit 14, an end of electromagnetic valve 15 is connected with auxiliary oil pipe, and the other end of auxiliary oil pipe is connected on the interface of triple valve 13; The other end of electromagnetic valve 15 also is connected with auxiliary oil pipe, and the other end of auxiliary oil pipe is connected on the interface of four-way cock 12.After opening, electromagnetic valve 15 is communicated with between triple valve 13 and the four-way cock 12.After the connection, oil return pipe I 6 is communicated with oil return pipe II 8; Oil inlet I4, oil inlet III9, oil return pipe III10 and electromagnetic valve 15 are communicated with auxiliary oil pipe between the four-way cock 12; Oil inlet II 5, oil inlet IV 11 and electromagnetic valve 15 are communicated with auxiliary oil pipe between the triple valve 13.
When the pallet fork sidesway was done, electromagnetic valve 15 was closed, and hydraulic oil only flows on the interface of multiway valve 16 connection oil return pipe III10, oil inlet IV 11.Hydraulic oil enters from oil inlet IV 11, and triple valve 13 backs of flowing through flow into oil inlet II 5, and hydraulic oil enters in the oil cylinder II 2 from the oil inlet of oil cylinder II 2, and the piston of oil cylinder II 2 is protruding at this moment.The hydraulic oil that flows out from the oil outlet of oil cylinder II 2 flows to the oil outlet of oil cylinder I 1 through auxiliary oil pipe, and the piston that hydraulic oil enters oil cylinder I 1 back oil cylinder I 1 inwardly shrinks.The oil inlet place of oil cylinder I 1, hydraulic oil flows to four-way cock 12, flows back to multiway valve 16 through oil return pipe III10 through oil inlet I 4.The pallet fork that is installed in like this on oil cylinder I1, the oil cylinder II 2 just begins to move to a side, and the distance between the pallet fork is constant.
When pallet fork sidesway direction was opposite, electromagnetic valve 15 was closed, and hydraulic oil only flows on the interface of multiway valve 16 connection oil return pipe III10, oil inlet IV 11.Hydraulic oil flows to from oil return pipe III10, flows to oil inlet I 4 through four-way cock 12.Hydraulic oil flows to oil cylinder I 1 from the oil inlet of oil cylinder I 1, and the piston of oil cylinder I 1 is protruding.The hydraulic oil that flows out at the oil outlet of oil cylinder I 1 flows to the oil outlet of oil cylinder II 2 through auxiliary oil pipe, and oil cylinder II 2 pistons inwardly shrink.The hydraulic oil flow oil inlet II 5 that oil cylinder II 2 oil inlets flow out, the triple valve 13 of flowing through are after oil inlet IV 11 flows back to multiway valve 16.The pallet fork that is installed in like this on oil cylinder I 1, the oil cylinder II2 just begins to move to oppositely directed direction, and the distance between the pallet fork is constant.
When pallet fork closed up, electromagnetic valve 15 was opened, and hydraulic oil only flows on the interface of multiway valve 16 connection oil return pipe II 8, oil inlet III9.Hydraulic oil enters from oil return pipe II8, and the oil return pipe I 6 back hydraulic oil of flowing through flow in oil cylinder I 1, the oil cylinder II 2 from the oil outlet of oil cylinder I 1, oil cylinder II 2 respectively.The piston of oil cylinder I 1 inwardly shrinks, the piston of oil cylinder II 2 inwardly shrinks.The hydraulic oil that flows out from oil cylinder I 1 oil inlet flows into oil inlet I4, flows to oil inlet III9 behind the four-way cock 12 of flowing through, and flows back to multiway valve 16 at last.The hydraulic oil that flows out from oil cylinder II 2 oil inlets flows into oil inlet II 5, the electromagnetic valve 15 of flowing through behind the triple valve 13 of flowing through, and the oil inlet III9 that flows through again flows back to multiway valve 16 at last.The pallet fork that is installed in like this on oil cylinder I 1, the oil cylinder II 2 just begins to move in opposite directions, and the distance between the pallet fork is dwindled.
When pallet fork separated, electromagnetic valve 15 was opened, and hydraulic oil only flows on the interface of multiway valve 16 connection oil return pipe II8, oil inlet III9.Hydraulic oil enters from oil inlet III9, and the four-way cock 12 back hydraulic pressure oil content two-way of flowing through flow, and one road oil inlet I 4 that flows through enters oil cylinder I 1, and the piston of oil cylinder I 1 is protruding, the hydraulic oil flow oil inlet and oil return pipe I 6 that flows out from the oil outlet of oil cylinder I 1; Flowing through behind the electromagnetic valve 15 in another road, flows to oil inlet II 5 through triple valve 13, and hydraulic oil enters in the oil cylinder II 2 from oil inlet, and the piston of oil cylinder II 2 is protruding, the hydraulic oil flow oil inlet and oil return pipe I 6 that flows out from the oil outlet of oil cylinder II 2.The hydraulic oil flow that flows to oil return pipe I 6 enters in the multiway valve 16 behind oil return pipe II 8.The pallet fork that is installed in like this on oil cylinder I 1, the oil cylinder II 2 just begins oppositely to move, and the distance between the pallet fork increases.
During single pallet fork sidesway, electromagnetic valve 15 is closed, and hydraulic oil only flows on multiway valve 16 connects the interface of oil return pipe II 8, oil inlet III9.Hydraulic oil flows to from oil inlet III9, oil inlet I 4 flows through behind four-way cock 12, hydraulic oil enters in the oil cylinder I 1 from the oil inlet of oil cylinder I 1, piston on the oil cylinder I 1 is protruding, hydraulic oil flow oil inlet and oil return pipe I 6 from oil cylinder I 1 oil outlet flows out flows back to behind oil return pipe II8 in the multiway valve 16.Pallet fork on the installation oil cylinder I 1 is away from the pallet fork of installing on the oil cylinder II 2 like this, and the distance between the pallet fork increases.
During the reverse sidesway of single pallet fork, electromagnetic valve 15 is closed, and hydraulic oil only flows on multiway valve 16 connects the interface of oil return pipe II 8, oil inlet III9.Hydraulic oil flows to from oil return pipe II 8, enters in the oil cylinder I 1 from oil cylinder I 1 oil outlet through oil return pipe I 6, and the piston on the oil cylinder I 1 inwardly shrinks.Hydraulic oil flows out from the oil inlet of oil cylinder I 1, flows to four-way cock 12 through oil inlet I 4, flows back to multiway valve 16 through oil inlet III9 again.The close pallet fork of installing on the oil cylinder II 2 of pallet fork on the oil cylinder I 1 is installed like this, and the distance between the pallet fork is dwindled.
In sum, the fork truck of this pallet fork sidesway roll-setting gear is installed is realized the two-way roll adjustment function of pallet fork, the unidirectional roll adjustment function of pallet fork, pallet fork sidesway function, and overlap the basis of oil feed line based on two oil cylinders and.Therefore than prior art, the pallet fork sidesway roll-setting gear of this fork truck has diverse in function, simple in structure, advantage that productive costs is low.
Claims (2)
1. the pallet fork sidesway roll-setting gear of a fork truck, this pallet fork side shifting type roll-setting gear comprises oil cylinder I (1) at least, oil cylinder II (2) and hydraulic tubing, described oil cylinder I (1), oil cylinder II (2) is connected with hydraulic tubing, it is characterized in that: described hydraulic tubing comprises front end oil feed line (3) at least, function is switched pipeline (7), described front end oil feed line (3) comprises oil inlet I (4) at least, oil inlet II (5) and oil return pipe I (6), described oil inlet I (4) is connected with the oil inlet of oil cylinder I (1), described oil inlet II (5) is connected with the oil inlet of oil cylinder II (2), described oil return pipe I (6) and oil cylinder I (1), the oil outlet of oil cylinder II (2) connects, described function is switched pipeline (7) and is comprised oil return pipe II (8) at least, oil inlet III (9), oil return pipe III (10), oil inlet IV (11), described oil return pipe II (8) is connected with oil return pipe I (6), described oil inlet III (9) is connected with oil inlet I (4) by four-way cock (12), described oil inlet III (9) is connected with oil return pipe III (10) by four-way cock (12), described oil inlet IV (11) is connected with oil inlet II (5) by triple valve (13), be connected by electromagnetism oil circuit (14) between described four-way cock (12) and the triple valve (13), described hydraulic tubing also comprises and is used for and fork truck oil feed line bonded assembly multiway valve (16) described oil return pipe II (8), oil inlet III (9), oil return pipe III (10), oil inlet IV (11) is connected on the multiway valve (16).
2. according to the pallet fork sidesway roll-setting gear of the described fork truck of claim 1, it is characterized in that: described electromagnetism oil circuit (14) comprises an electromagnetic valve (15) at least, be connected by pipeline between described electromagnetic valve (15) and the four-way cock (12), be connected by pipeline between described electromagnetic valve (15) and the triple valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201660528U CN202063684U (en) | 2011-05-23 | 2011-05-23 | Lateral shifting and distance adjusting device for pallet fork of fork truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201660528U CN202063684U (en) | 2011-05-23 | 2011-05-23 | Lateral shifting and distance adjusting device for pallet fork of fork truck |
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| Publication Number | Publication Date |
|---|---|
| CN202063684U true CN202063684U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201660528U Expired - Fee Related CN202063684U (en) | 2011-05-23 | 2011-05-23 | Lateral shifting and distance adjusting device for pallet fork of fork truck |
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| CN (1) | CN202063684U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795577A (en) * | 2011-05-23 | 2012-11-28 | 杭州友高精密机械有限公司 | Fork laterally-moving distance-adjusting device of fork truck and special-purpose fork frame assembly |
| CN102795578A (en) * | 2011-05-23 | 2012-11-28 | 杭州友高精密机械有限公司 | Fork laterally-moving distance-adjusting device of fork truck |
-
2011
- 2011-05-23 CN CN2011201660528U patent/CN202063684U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795577A (en) * | 2011-05-23 | 2012-11-28 | 杭州友高精密机械有限公司 | Fork laterally-moving distance-adjusting device of fork truck and special-purpose fork frame assembly |
| CN102795578A (en) * | 2011-05-23 | 2012-11-28 | 杭州友高精密机械有限公司 | Fork laterally-moving distance-adjusting device of fork truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20170523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |