CN205151669U - Energy -saving fork truck hydraulic system - Google Patents
Energy -saving fork truck hydraulic system Download PDFInfo
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- CN205151669U CN205151669U CN201520830409.6U CN201520830409U CN205151669U CN 205151669 U CN205151669 U CN 205151669U CN 201520830409 U CN201520830409 U CN 201520830409U CN 205151669 U CN205151669 U CN 205151669U
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Abstract
The utility model relates to an energy -saving fork truck hydraulic system. The utility model discloses an energy dissipation problem to slope or accessory action cause provides an energy -saving fork truck hydraulic system, aims at improving flowing in the hydraulic oil flow that the slope allies oneself with or the accessory allies oneself with to reduce the loss of pressure among the hydraulic system, reach energy saving and emission reduction, the purpose in increase fork truck life -span. The utility model provides a: energy -saving fork truck hydraulic system has hydraulic tank, gear pump I, gear pump II, multiple unit valve, plays to rise hydro -cylinder, tilting cylinder and accessory hydro -cylinder, the multiple unit valve is tribit six and leads to the multiple unit valve, including playing to rise to ally oneself with case, slope antithetical couplet case, accessory antithetical couplet case and flow valve, wherein: play to rise to ally oneself with the case by gear pump I and II direct fuel feeding of gear pump, and gear pump I refurnishes slope antithetical couplet case or accessory antithetical couplet case earlier with another road binders liquid that gear pump II provided behind the flow valve. The utility model is suitable for a 5 -10t's economical fork truck.
Description
Technical field
The utility model relates to fork truck technical field, especially a kind of energy-saving type forklift hydraulic efficiency pressure system.Be applicable to the economical fork truck of 5-10t.
Background technology
At present, the economical fork truck of domestic 5-10t mostly adopts the fixed dilivery hydraulic system of two gear type pump fuel feeding, multiway valve distributes to the connection that hoists, the power oil sources maximum flow of tilt connection and accessory connection is about 120-140L, and in fact tilts or accessory action only needs the flow of 80-90L just can meet normally to work.Current inclination connection or the unnecessary oil of accessory connection oil circuit all get back to hydraulic reservoir by by pass valve, cause system energy loss, cause hydraulic oil generate heat, can accelerate the aging of packing element in hydraulic efficiency pressure system, shortening fork truck service life, waste energy.
Summary of the invention
The technical problems to be solved in the utility model is: for the energy dissipation problem tilted or accessory action causes, a kind of energy-saving type forklift hydraulic efficiency pressure system is provided, be intended to improve the hydraulic fluid flow rate flowing into connection or accessory connection, thus the loss of pressure in reduction hydraulic efficiency pressure system, reach energy-saving and emission-reduction, increase the object in fork truck life-span.
The technical scheme that the utility model adopts is: energy-saving type forklift hydraulic efficiency pressure system, there is hydraulic reservoir, gear type pump I, gear type pump II, multiway valve, lift oil tank, dump ram and accessory oil cylinder, it is characterized in that: described multiway valve is three six logical multiway valve, include the connection spool that hoists, tilt to join spool, accessory joins spool and flow valve, wherein: the connection spool that hoists is by gear type pump I and gear type pump II DFF Direct Fuel Feed; And another road binders liquid that gear type pump I and gear type pump II provide first resupplies connection spool or accessory connection spool after flow valve.
The beneficial effects of the utility model are: the utility model reasonable distribution flow into the connection that hoists, the fluid of the connection that tilts, accessory connection, the fluid that duplex geared pump the pumps connection that only hoists directly enters, inclination connection and accessory connection are all by entering work again after flow valve, this improves the flow entering connection and accessory connection, eliminate the system energy loss that unnecessary fluid is back to hydraulic reservoir, while realizing energy-saving and emission-reduction, can oil temperature in hydraulic system be reduced, extend the service life of Hydraulic Elements and even fork truck.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, the present embodiment energy-saving type forklift hydraulic efficiency pressure system, has hydraulic reservoir 1, gear type pump I 2, gear type pump II 3, multiway valve 4, lift oil tank 5, dump ram 6 and accessory oil cylinder 7 that common forklift all possesses.Feature of the present utility model is this multiway valve 4 is three six logical multiway valve, and it includes the connection spool S that hoists, the connection spool U that tilts, accessory connection spool V and flow valve T, wherein: the connection spool S that hoists is by gear type pump I 2 and gear type pump II 3 DFF Direct Fuel Feed; And another road binders liquid that gear type pump I 2 and gear type pump II 3 provide first resupplies connection spool U or accessory connection spool V after flow valve T.Also by reference to the accompanying drawings the utility model is described below by instantiation:
One, forklift door frame system does not work
The connection spool S that hoists of multiway valve 4 is in meta, and the connection spool U that tilts is in meta, and accessory connection spool V is in meta.The A mouth of connection spool S of hoisting is connected with B mouth, and the G mouth and the H mouth that tilt to join spool U are connected, and accessory joins the M mouth of spool V and N mouth is connected.Gear type pump I 2 and gear type pump II 3 are hydraulic oil sucking-off from hydraulic reservoir 1, and the hydraulic oil that two gear type pumps provide flow back into hydraulic reservoir 1 after multiway valve 4 collaborates, and forklift door frame system is failure to actuate.
Two, forklift door frame system hoists connection work
1, the connection spool S that hoists of multiway valve 4 is in right position, and the connection spool U that tilts is in meta, and accessory connection spool V is in meta.The hoist C mouth of connection spool S and D mouth is connected.Gear type pump I 2 and gear type pump II 3 are hydraulic oil sucking-off from hydraulic reservoir 1, and the hydraulic oil that two gear type pumps provide flows to the rodless cavity of lift oil tank 5 after multiway valve 4 collaborates, and oil cylinder stretches out, and forklift door frame hoists.
2, the connection spool S that hoists of multiway valve 4 is in left position, and the connection spool U that tilts is in meta, and accessory connection spool V is in meta.The hoist A mouth of connection spool S and B mouth is connected, and E mouth and D mouth are connected, and G mouth and H mouth are connected, and M mouth and N mouth are connected.Gear type pump I 2 and gear type pump II 3 are hydraulic oil sucking-off from hydraulic reservoir 1, the hydraulic oil that two gear type pumps provide flow back into hydraulic reservoir 1 after multiway valve 4 collaborates, lift oil tank 5 is because of door frame deadweight, in-oil cylinder fluid to reflux hydraulic reservoir 1 through multiway valve 4, lift oil tank 5 is retracted, and forklift door frame declines.
Three, forklift door frame system tilt connection work
1, the connection spool S that hoists of multiway valve 4 is in meta, and the connection spool U that tilts is in right position, and accessory connection spool V is in meta.The I mouth and the J mouth that tilt to join spool U are connected, and K mouth and L mouth are connected.Gear type pump I 2 and gear type pump II 3 are hydraulic oil sucking-off from hydraulic reservoir 1, and the hydraulic oil that two gear type pumps provide collaborates at multiway valve 4, and through the rodless cavity of flow valve T to dump ram 6, dump ram 6 stretches out, and forklift door frame leans forward.
2, the connection spool S that hoists of multiway valve 4 is in meta, and the connection spool U that tilts is in left position, and accessory connection spool V is in meta.The K mouth and the J mouth that tilt to join spool U are connected, and I mouth and L mouth are connected.Gear type pump I 2 and gear type pump II 3 are hydraulic oil sucking-off from hydraulic reservoir 1, and the hydraulic oil that two gear type pumps provide collaborates at multiway valve 4, and through the rod chamber of flow valve T to dump ram 6, dump ram 6 is retracted, forklift door frame hypsokinesis.
Four, forklift door frame system accessory connection work
1, the connection spool S that hoists of multiway valve 4 is in meta, and the connection spool U that tilts is in meta, and accessory connection spool V is in right position.O mouth and the P mouth of accessory connection spool V are connected, and Q mouth and R mouth are connected.Gear type pump I 2 and gear type pump II 3 are hydraulic oil sucking-off from hydraulic reservoir 1, and the hydraulic oil that two gear type pumps provide collaborates at multiway valve 4, and through the rodless cavity of flow valve T to accessory oil cylinder 7, accessory oil cylinder 7 stretches out, the action of forklift door frame accessory.
2, the connection spool S that hoists of multiway valve 4 is in meta, and the connection spool U that tilts is in meta, and accessory connection spool V is in left position.Q mouth and the P mouth of accessory connection spool V are connected, and O mouth and R mouth are connected.Gear type pump I 2 and gear type pump II 3 are hydraulic oil sucking-off from hydraulic reservoir 1, and the hydraulic oil that two gear type pumps provide collaborates at multiway valve 4, and through the rod chamber of flow valve T to accessory oil cylinder 7, accessory oil cylinder 7 is retracted, the action of forklift door frame accessory.
Claims (1)
1. an energy-saving type forklift hydraulic efficiency pressure system, there is hydraulic reservoir (1), gear type pump I (2), gear type pump II (3), multiway valve (4), lift oil tank (5), dump ram (6) and accessory oil cylinder (7), it is characterized in that: described multiway valve (4) is three six logical multiway valve, include connection spool (S) that hoists, tilt to join spool (U), accessory connection spool (V) and flow valve (T), wherein: connection spool (S) that hoists is by gear type pump I (2) and gear type pump II (3) DFF Direct Fuel Feed; And another road binders liquid that gear type pump I (2) and gear type pump II (3) provide first resupplies connection spool (U) or accessory connection spool (V) after flow valve (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830409.6U CN205151669U (en) | 2015-10-23 | 2015-10-23 | Energy -saving fork truck hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520830409.6U CN205151669U (en) | 2015-10-23 | 2015-10-23 | Energy -saving fork truck hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205151669U true CN205151669U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520830409.6U Active CN205151669U (en) | 2015-10-23 | 2015-10-23 | Energy -saving fork truck hydraulic system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205151669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757651A (en) * | 2018-08-20 | 2018-11-06 | 杭叉集团股份有限公司 | Electri forklift and its hydraulic control system |
| CN110615392A (en) * | 2019-10-22 | 2019-12-27 | 徐州圣诺动力传动机械有限公司 | High-safety scissor-fork type hydraulic system for aerial work platform |
-
2015
- 2015-10-23 CN CN201520830409.6U patent/CN205151669U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757651A (en) * | 2018-08-20 | 2018-11-06 | 杭叉集团股份有限公司 | Electri forklift and its hydraulic control system |
| CN110615392A (en) * | 2019-10-22 | 2019-12-27 | 徐州圣诺动力传动机械有限公司 | High-safety scissor-fork type hydraulic system for aerial work platform |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |