CN103223866B - For having the change-speed box of the Work machine of attaching hydraulic fluid pump - Google Patents
For having the change-speed box of the Work machine of attaching hydraulic fluid pump Download PDFInfo
- Publication number
- CN103223866B CN103223866B CN201310036530.7A CN201310036530A CN103223866B CN 103223866 B CN103223866 B CN 103223866B CN 201310036530 A CN201310036530 A CN 201310036530A CN 103223866 B CN103223866 B CN 103223866B
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- Prior art keywords
- pump
- change
- menifold
- housing
- speed box
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Abstract
For the transmission assembly of Work machine (10), comprise the change-speed box (16) with case of transmission (18), the menifold housing (20) being attached to case of transmission (18) and be configured to be connected to the Hydraulic Pump (22) of menifold housing (20).
Description
Technical field
The present invention relates to Work machine, and relate more specifically to the change-speed box for such Work machine.
Background technology
Such as the Work machine of agricultural traction engine or building trac. and so on comprises internal combustion (IC) machine, and input power is provided to change-speed box by it, and change-speed box to be then coupled with back axle by rear end diff and to drive back axle.Change-speed box, rear end diff and back axle are sometimes referred to as " rear end " of Work machine.
Trac. has hydraulic efficiency pressure system, and it comprises Hydraulic Pump, and pressurized hydraulic fluid is fed to various apply device by this Hydraulic Pump.These devices comprise suspension, are connected to the selection control cock (SCV) of hydraulic actuating cylinder, steering hardware, brake equipment and change-speed box, and this change-speed box comprises fluid control valve and hydrodynamic lubrication pipeline.Suspension is positioned at the rear portion of vehicle, and SCV is positioned at middle part and the rear portion of vehicle.Some hydraulic actuating cylinders are for being operationally connected to the instrument of vehicle rear.
These Hydraulic Pumps are generally gear type pump form and are installed to as described pump provides on the driving engine of power.Typically, hydraulic efficiency pressure system comprises the apply device of the suitable distance of distance pump, this needs each hydraulic efficiency pressure system to connect multiple flexible pipe, conduit and assembly parts, the useful space that these flexible pipes, conduit and assembly parts need productive costs, provide potential leakage approach and expend on trac..
It is desirable that a kind of trac. with hydraulic efficiency pressure system in prior art, this hydraulic efficiency pressure system efficiency is high, save space of tractor and minimize the exposure of hydraulic unit.
Summary of the invention
A kind of form of the present invention relates to a kind of menifold housing for Work machine.Described menifold comprises outside face and multiple internal channel, and described outside face is configured the outside face being connected to change-speed box.Described menifold also comprises multiple isolated port, and each isolated port is connected at least one in described multiple internal channel.
Another kind of form of the present invention relates to Work machine, it rear end comprising driving engine and be connected with driving engine.Described rear end comprises the change-speed box with case of transmission, the menifold housing being attached to case of transmission and Hydraulic Pump.Described Hydraulic Pump is configured to be connected to described menifold housing.
Accompanying drawing explanation
Fig. 1 comprises the top partial view diagram of the present invention for the change-speed box of an embodiment of the menifold housing of agricultural traction engine;
Fig. 2 is the partial perspective view of the cut-away section of the change-speed box of Fig. 1;
Fig. 3 is the partial perspective view of the change-speed box of Fig. 1, and it illustrates the pump gear for being contained in Hydraulic Pump in menifold housing;
Fig. 4 is the partial perspective view of the cut-away section of the change-speed box of Fig. 1, and it illustrates in greater detail transmission output gear;
Fig. 5 is the block diagram of the menifold housing of the change-speed box of Fig. 1, and it illustrates in greater detail the front portion of menifold housing;
Fig. 6 is the block diagram of the semi-sictional view of the menifold housing of the change-speed box of Fig. 1, and it is shown in further detail the attaching parts for filter cartridge; And
Fig. 7 is the block diagram of the menifold housing of the change-speed box of Fig. 5, and it illustrates in greater detail the rear portion of menifold housing.
Detailed description of the invention
According to the present invention and with reference to figure 1, Work machine 10 is shown.Work machine 10 comprises driving engine 12(and illustrates to simplify box form) and be coupled to driving engine 12 rear end 14(part illustrate).Work machine 10 can be such as the form of agricultural traction engine or construction vehicle.Rear end 14 comprises the change-speed box 16 with case of transmission 18.Rear end also comprises the menifold housing 20 being attached to case of transmission 18 and the Hydraulic Pump 22 being connected to menifold housing 20.
Also illustrate in Fig. 1, Work machine 10 also comprises filter cartridge 24.The hydraulic fluid of filter cartridge 24 for polluting in the hydraulic fluid system of filtration operation machinery 10.As shown in Figure 1, menifold housing 20 comprises the outside face 26 for receiving filter cartridge 24.Filter cartridge 24 comprises to be cooperated with the outside face 26 of menifold housing and holds the housing of hydraulic fluid wherein.The filter cartridge 24 with structure so does not need independent filter cap to lead to the filter in box.The Hydraulic Pump 22 of Work machine 10 is interior Hydraulic Pumps.Interior Hydraulic Pump 22 is placed in menifold housing 20.
Pressurized hydraulic fluid can be fed to each apply device (not shown) by Hydraulic Pump 22, such as brake system, change-speed box, steering swivel system, suspension (such as the trifilar suspension of agricultural traction engine) and be connected to the selection control cock (SCV) of hydraulic actuating cylinder.Work machine 10 also comprises the second Hydraulic Pump of near-end Hydraulic Pump 28 form, and it is connected to menifold housing 20 at the outside face 30 of menifold housing 20.Work machine 10 also comprises the 3rd Hydraulic Pump of far-end Hydraulic Pump 32 form being attached to the outer Hydraulic Pump 28 of near-end.Near-end Hydraulic Pump 28 and far-end Hydraulic Pump 32 can be the Hydraulic Pumps of any type, such as, can be vane pump or gear type pump.Typically, near-end Hydraulic Pump 28 and far-end Hydraulic Pump 32 are gear type pumps.
With reference now to Fig. 2, menifold housing 20 comprises multiple interior conduit 34 and multiple isolated external port 36.Each in multiple isolated external port 36 is connected at least one in multiple internal channel 34.Passage 34 and port 36 are for directing into pump 22,28 and 32 by flow of hydraulic fluid from filter cartridge 24 and directing into filter cartridge 24 from pump 22,28 and 32.Such as, as shown in Figure 2, menifold housing 20 comprises the first internal channel 38 extending to filter inner port 42 from SCV return port 40.Menifold housing also comprises the second internal channel 44 extending to interior pump discharge 48 from filter outlet 46.
As shown in Figure 2, interior Hydraulic Pump 22 is gear type pump forms, and is positioned at the second internal channel 44 of menifold housing 20.Interior Hydraulic Pump 22 is driven by change-speed box 16.Change-speed box 16 comprises the input gear 50 of driver output gear 52.Output gear 52 longitudinally axis 54 rotates.As shown in Figure 2, interior Hydraulic Pump 22 comprises output or driven wheel 56 and driven gear 58.Internal channel 44 is used as hydraulic accumulator to hold hydraulic fluid, and this hydraulic fluid is also used as the direct lubricant of the bearing 59 of the driven wheel 56 supporting interior Hydraulic Pump 22.Similar bearing (not shown) can support interior Hydraulic Pump 22 driven gear 58 and can be lubricated similarly.Therefore, Hydraulic Pump input gear 56 rotates around the longitudinal axis 54 of the output gear 52 of change-speed box 16.Use interior Hydraulic Pump 22 provide the space minimized in rear end 14 Hydraulic Pump and closer to hydraulic power demand parts, such as, change-speed box 16, and location pump.
In addition and as shown in Figure 2, interior Hydraulic Pump 22 is also for being delivered to near-end Hydraulic Pump 28 by power from change-speed box 16.The driven wheel 56 of interior Hydraulic Pump 22 comprises the female splines 60 engaged with the input shaft 62 of near-end Hydraulic Pump 28.Therefore, input gear 62 rotates around the longitudinal axis 54 of the output gear 52 of change-speed box 16.Like this, interior Hydraulic Pump is also as the coupler between the axle on the output gear 52 of change-speed box 16 and the input shaft 62 of near-end Hydraulic Pump 28.Interior Hydraulic Pump 22 is as the dual-use conserve space of pump and coupler and cost.
As shown in Figure 2, rear end 14 also comprises the 3rd pump or the outer pump 32 of far-end.The outer pump 32 of far-end is installed to the outer pump 28 of near-end.Near-end Hydraulic Pump 28 comprises the female splines 68 engaged with the male splines 70 on the input shaft 72 of far-end pump 68.The outer pump 32 of far-end and the outer pump 28 of near-end may be used for pressurized hydraulic fluid to be provided to one or more apply device, such as brake system, change-speed box, steering swivel system, suspension and multiple SCV.Because at least suspension and SCV are positioned at the rear portion of trac., trac. is caused to have less or shorter hydraulic hose and conduit and less hydraulic pressure assembly parts than the position of the existing pump be installed on the driving engine pump 28 and 32 of position more rearward.
With reference to figure 3,4 and 5, the pump driver gear 56 illustrated and pump driven gear 58 are arranged in the internal channel 44 of menifold housing 20, to form interior Hydraulic Pump 22.Interior Hydraulic Pump 22 is connected to near-end Hydraulic Pump 28 by internal channel, and near-end Hydraulic Pump 28 is connected to far-end Hydraulic Pump 32 by internal channel again.Hydraulic Pump 22,28 and 32 uses thus and shares entrance.The shared entrance of three Hydraulic Pumps 22,28 and 32 provides pump to be interconnected by hydraulic pressure.Three Hydraulic Pumps 22,28 and 32 utilize the shared suction part of composition internal channel, therefore, do not need outside pipe arrangement to provide suction part.Three Hydraulic Pumps 22,28 and 32 do not need the outside pipe arrangement that sucks reduce the probability of component count and leakage and save space and cost.Like this, inject problem for priming of pump, all hydraulic pump 22,28 and 32 is helped each other.Sharing entrance allows all hydraulic pump 22,28 and 32 to be connected to shared storage tank 88.In addition, the fluid in these pumps 22,28 and 32 can be filtered by same filter (that is, strum box 24).Also closely, compared with existing design, it uses less space of tractor and less and simple components to such pump structure.
Refer again to Fig. 2, illustrate in greater detail filter cartridge 24.As shown in Figure 2, filter cartridge 24 comprises housing 78, and it limits the negative thread 80 engaged with the outside thread 82 that menifold housing 20 is formed.Filter cartridge 24 also comprises and returns filter cell 84 and suck flow elernent 85.Hydraulic fluid for three pumps 22,28 and 32 is supplied from the tank port 86 of the storage tank 88 of change-speed box 16 by filter cartridge 24.From the hydraulic fluid of storage tank 88 through tank port 86, the inwall 90 entering filter cartridge 24 and the passage 89 returned between filter cell 84, by returning filter cell 84, by port 46, then enter the second internal channel 44 of menifold housing 20.
Return port 40 from the hydraulic return fluid performing hydraulic actuating cylinder etc. from SCV, through internal channel 38, arrive filter inlet 42, return filter cell 84 through filter cartridge 24, by filter outlet 46, then arrive the second internal channel 44 of menifold housing 20.SCV returns to the exposed to contact outside that port 40 is positioned at menifold housing 20.Equally, the port on near-end Hydraulic Pump 28 and far-end Hydraulic Pump 32 is positioned at the exposed to contact outside of pump 28 and 32.The position that SCV returns the port of port 40 and pump 28 and 32 provides the driving engine installation avoiding comprising existing Hydraulic Pump may be 90 degree of necessary bending assembly parts and the structure of the complicated hydraulic assembly parts of " T " adaptor union.Hydraulic fluid for these three pumps 22,28 and 32 returns port 40 from SCV supply from storage tank 88 thus.Filter cartridge 24 filters and returns port 40 from SCV and be fed to the fluid of pump 22,28 and 32 and be fed to the fluid of pump 22,28 and 32 from storage tank 88.
Filter cartridge 24 is arranged on menifold housing 20, and menifold housing 20 is arranged on change-speed box 16.Menifold housing 20 comprises the tank port 86 for being communicated with storage tank 88 fluid in change-speed box 16.When change-speed box 16 does not run, the storage tank 88 that the fluid in it will be discharged into by tank port 86 in case of transmission 18.Filter cartridge 24 is so located relative to change-speed box 16, menifold housing 20 and storage tank 88, make when change-speed box does not run, most of hydraulic fluid in filter cartridge 24 will flow to storage tank 88 from filter cartridge 24 by menifold housing 22, make filter cartridge 24 can totally and effectively remove and change.
With reference now to Fig. 2,5,6 and 7, be shown in further detail port and the passage for providing path from the fluid of menifold housing 20, filter cartridge 24 and storage tank 88.When the driving engine 12 of Work machine 10 does not run, change-speed box 16 non rotating and pump 22,28 and 32 do not rotate.When pump 22,28 and 32 does not rotate, fluid no longer pressurizes and fluid is discharged by gravity.Filter cartridge 24 horizontal setting, the fluid drainage in permission box 24 is in menifold housing 20.Fluid in menifold housing can be discharged in storage tank 88.Flowing opposite recited above when the flow being discharged into menifold housing 20 from pump 22,28 and 32 and be discharged into menifold housing 20 from box 24 usually and pump 22,28 and 32 rotates.Filter cartridge 24 is discharged when pump does not rotate, and then can remove and change.
Although describe preferred embodiment, clearly various amendment can be made when not departing from the scope that the claims in the present invention are advocated.
Claims (2)
1., for a menifold housing for Work machine, comprising:
One outside face, it is configured the outside face being connected to a change-speed box;
Multiple internal channel;
Multiple isolated port, each in described multiple isolated port is connected at least one in described multiple internal channel; And
In one, Hydraulic Pump is arranged in described manifold housings, the outside face that one outer Hydraulic Pump is arranged on described manifold housings is attached to described interior Hydraulic Pump, and described interior Hydraulic Pump is used as the coupler between the output gear of described change-speed box and the input shaft of described outer Hydraulic Pump.
2. menifold housing according to claim 1, wherein, described menifold housing also comprises one second outside face, and it is configured to receive a filter cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310036530.7A CN103223866B (en) | 2008-07-07 | 2008-07-07 | For having the change-speed box of the Work machine of attaching hydraulic fluid pump |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310036530.7A CN103223866B (en) | 2008-07-07 | 2008-07-07 | For having the change-speed box of the Work machine of attaching hydraulic fluid pump |
| CN200880130258.6A CN102084156B (en) | 2008-07-07 | 2008-07-07 | For having the speed changer of the Work machine of attaching hydraulic fluid pump |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880130258.6A Division CN102084156B (en) | 2008-07-07 | 2008-07-07 | For having the speed changer of the Work machine of attaching hydraulic fluid pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103223866A CN103223866A (en) | 2013-07-31 |
| CN103223866B true CN103223866B (en) | 2016-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310036530.7A Expired - Fee Related CN103223866B (en) | 2008-07-07 | 2008-07-07 | For having the change-speed box of the Work machine of attaching hydraulic fluid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103223866B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02109057U (en) * | 1989-02-16 | 1990-08-30 | ||
| US5092736A (en) * | 1987-11-17 | 1992-03-03 | Zahnradfabrik Friedrichshafen Ag | Pump arrangement in a transmission |
| US5713203A (en) * | 1996-06-18 | 1998-02-03 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Charge pump for a hydrostatic transmission |
| JPH1054461A (en) * | 1996-08-09 | 1998-02-24 | Kubota Corp | Continuously variable transmission for working machine |
| JP2005199888A (en) * | 2004-01-16 | 2005-07-28 | Mitsubishi Agricult Mach Co Ltd | Hydraulic circuit of working vehicle |
| JP2005280383A (en) * | 2004-03-26 | 2005-10-13 | Kubota Corp | Hydraulic pump mounting device for traveling vehicle |
-
2008
- 2008-07-07 CN CN201310036530.7A patent/CN103223866B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5092736A (en) * | 1987-11-17 | 1992-03-03 | Zahnradfabrik Friedrichshafen Ag | Pump arrangement in a transmission |
| JPH02109057U (en) * | 1989-02-16 | 1990-08-30 | ||
| US5713203A (en) * | 1996-06-18 | 1998-02-03 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Charge pump for a hydrostatic transmission |
| JPH1054461A (en) * | 1996-08-09 | 1998-02-24 | Kubota Corp | Continuously variable transmission for working machine |
| JP2005199888A (en) * | 2004-01-16 | 2005-07-28 | Mitsubishi Agricult Mach Co Ltd | Hydraulic circuit of working vehicle |
| JP2005280383A (en) * | 2004-03-26 | 2005-10-13 | Kubota Corp | Hydraulic pump mounting device for traveling vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103223866A (en) | 2013-07-31 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20210707 |