CN201090719Y - Back-up bearing lubricating structure of wheel type loader power shift gear box - Google Patents
Back-up bearing lubricating structure of wheel type loader power shift gear box Download PDFInfo
- Publication number
- CN201090719Y CN201090719Y CNU2007200711102U CN200720071110U CN201090719Y CN 201090719 Y CN201090719 Y CN 201090719Y CN U2007200711102 U CNU2007200711102 U CN U2007200711102U CN 200720071110 U CN200720071110 U CN 200720071110U CN 201090719 Y CN201090719 Y CN 201090719Y
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- China
- Prior art keywords
- oil
- block bearing
- gear box
- clutch shaft
- power shift
- 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.)
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Abstract
The utility model relates to a lubrication structure for the bearing of a power shift gear box of a wheel loader. The utility model comprises a clutch, an output assembly, an output gear shaft, an oil storage area and a gearbox, and is characterized in that the circulating lubricating oil outside the gearbox is connected to an oil inlet hole on an end cap through an oil pipe; the main oil hole on a clutch shaft is the same as the oil inlet hole on the end cap; an oil sink loaded with a seal ring is arranged at the end of the clutch shaft; the main oil hole of the clutch shaft is communicated with the oil sink on a shaft sleeve; the oil sinks are provided with inclined oil holes which face the bearing. The lubrication structure has the advantages that the structure can improve lubrication effect and can reduce the burnout rate of the bearing of the power shift gear box of the wheel loader.
Description
Technical field
The utility model relates to a kind of wheel loader dynamic power shift gear box block bearing lubricating structure, can be used for the clutch assembly of wheel loader dynamic power shift gear box, for block bearing provides lubricant oil,, improve working life specially to reduce the fault of bearing burnt.Belong to wheel loader dynamic power shift gear box bearing lubrication technical field.
Background technique
Wheel loader is a kind of Engineering Work machine that shovels the material shipment, is widely used in the infrastructures such as city, traffic, water conservancy, is called as " multi-functional mechanical ".Powershift transmission is positioned at the chassis of wheel loader, and its major function realizes speed change and advance and retreat exactly, is made up of friction disk clutch, control valve, casing etc., and block bearing is located in the two ends of clutch.As shown in Figure 1, be former wheel loader dynamic power shift gear box block bearing lubricating structure, have three groups in the gearbox 8, clutch shaft 1, clutch 3, axle sleeve 4 and output shaft assembly 5, control forward-reverse direction retaining and three speed retainings respectively, the gearbox bottom is a reserve 7, the gear 6 of output shaft assembly has 1/2 to immerse in the pasta of reserve 7, when output shaft assembly 5 rotates, driven gear 6 together rotates, under effect of inertia, the tooth portion that is immersed in the oil up splashes oil, thereby lubricates the block bearing 2 of three groups of clutches 3 successively, this splash lubrication structure effect in actual use is undesirable, its former because:
1, influenced by usage mode: loader is mainly used in the shovel fortune loading and unloading of the earthwork, silt, the cubic meter of stone etc., often is in low speed or original place operation, and the low or stall of gear rotational speed causes the fluid splash lubrication insufficient even unlubricated, causes faults such as block bearing scaling loss;
2, influenced by locations of structures: the loader dynamic power shift gear box is in order to adapt to the chassis structure requirement of complete machine, need the design wheelbase, the input shaft end that is gearbox has certain distance with the output axle head, cause input clutch farthest from pasta, the effect of splash lubrication is relatively poor, easily causes faults such as input clutch block bearing scaling loss;
3, be subjected to the influence of lubricant oil.Because the oil of splash lubrication is from the reserve of gearbox bottom, the oil here is through each use partly in the gearbox, and when being pooled to reserve at last, its turbidity test are relatively poor, and temperature is also than higher, and the lubricated cooling effect of bearing is reduced greatly.
Summary of the invention
The purpose of this utility model provides a kind of lubricated effect that improves, and reduces the wheel loader dynamic power shift gear box block bearing lubricating structure of wheel loader dynamic power shift gear box bearing burnt rate of fault.
For realizing above purpose, the technical solution of the utility model provides a kind of wheel loader dynamic power shift gear box block bearing lubricating structure, comprise clutch, the output shaft assembly, output shaft gear, reserve and gear box, it is characterized in that, be provided with three groups of centres that connect by output shaft gear in the gear box oilhole is arranged, two ends are provided with the clutch shaft of inclined oil hole of air, there is the block bearing of two side oilholes to be positioned at the two ends of clutch shaft, block bearing inner ring and clutch shaft transition fit, outer ring and gear box transition fit, block bearing and clutch are by having an oil groove, and there are two inclined oil hole of air to be connected with the axle sleeve that it communicates, two inclined oil hole of air on the axle sleeve communicate with two side oilholes of block bearing, the inclined oil hole of air at clutch shaft two ends is pressed close to two side oilholes at block bearing place, the oilhole of clutch shaft communicates with the axle sleeve finishing bathtray, the clutch shaft termination is provided with the end cap of bringing oilhole into, the clutch shaft main oil-hole communicates with the end cap oil inlet hole, the oil groove of clutch axle head is provided with seal ring, reserve is connected with the gear-box lubricating oil liquid external circulating system of being located at the fuel tank outside, and the end cap oil inlet hole communicates with gear-box lubricating oil liquid external circulating system by oil pipe.
The utility model is provided with oilhole on clutch shaft, block bearing and axle sleeve, and end cap and gear-box lubricating oil liquid external circulating system have been increased, for the gearbox block bearing has formed the lubricated cooling structure of a cover, can improve bearing working life, reduce the rate of fault of wheel loader dynamic power shift gear box bearing burnt.
The advantage of the utility model structure is:
1, there is special oil circuit to come the block bearing of pressure lubrication cooled clutch;
2, as long as engine start, this lubricating oil path is with regard to fuel feeding, and no matter loader is in bottom gear or neutral is former
The ground state;
3, this lubricant oil is filtered and cooling processing through smart, the turbidity test height, and temperature is low, and lubricated cooling effect is good.
Description of drawings
Fig. 1 is former wheel loader dynamic power shift gear box block bearing lubricating structure schematic representation;
Fig. 2 is the utility model wheel loader dynamic power shift gear box block bearing lubricating structure schematic representation.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
As shown in Figure 2, be the utility model wheel loader dynamic power shift gear box block bearing lubricating structure schematic representation, described wheel loader dynamic power shift gear box block bearing lubricating structure is made up of clutch 3, output shaft assembly 5, output shaft gear 6, reserve 7, gear box 8, clutch shaft 9, block bearing 10, gear-box lubricating oil liquid external circulating system 11, axle sleeve 12, seal ring 13 and end cap 14.
Three groups of clutch shafts 9 that connect by output shaft gear 6 are installed in the gear box 8, are had oilhole in the middle of the clutch shaft 9, the aperture is
Two ends have inclined oil hole of air, and pore size is
Block bearing 10 is positioned at the two ends of clutch shaft 9, block bearing 10 inner rings and clutch shaft 9 transition fit, and outer ring and gear box 8 transition fit play the swivel bearing effect; Block bearing 10 is connected by axle sleeve 12 with clutch 3, has oil groove on the axle sleeve 12 and has two inclined oil hole of air to communicate with it, two inclined oil hole of air on the axle sleeve 12
Two side oilholes with block bearing 10
Communicate, the inclined oil hole of air at clutch shaft 9 two ends is pressed close to two side oilholes at block bearing 10 places, clutch shaft 9
Oilhole communicates with axle sleeve 12 finishing bathtray, the end cap 14 of clutch shaft 9 termination mounting strap oil inlet holes, end cap 14 is fixed on the gear box 10, clutch shaft 9 main oil-holes communicate with end cap 14 oil inlet holes, clutch shaft 9 ends have grooving and seal ring 13 are housed and prevent oil leak, reserve 7 is connected with the gear-box lubricating oil liquid external circulating system 11 of being located at the fuel tank outside, end cap 14 oil inlet holes communicate with gear-box lubricating oil liquid external circulating system 11 by oil pipe, gear-box lubricating oil liquid external circulating system 11 is by pump, secondary filter and cooler are formed, pump is connected with secondary filter by valve, secondary filter is connected with cooler, the outer end of filler opening is by pipeline and secondary filter, the cooling oil circuit communicates, inner and clutch shaft 9 oilholes
Communicate.
Operating conditions of the present utility model is:
1, Lubricants pressure 0-0.5Mp;
2, operating temperature-30 is ℃-140 ℃;
3, Applicable media oil, water and weak erosive liquid.
During work, the power of loader diesel engine output is through fluid torque converter, the speed change of gearbox and ransaxle increases square driving force is passed to tire, and do along rotating counterclockwise, thereby realize advancing and falling back of loader, in lubricating structure, when clutch shaft 9 is the Zhi Chengzuo circular movement with block bearing 10, clutch 3 and axle sleeve 12 are also along with making circular movement together, after engine start, pass through pump, secondary filter, cooler, valve, the pressure lubrication oil that the outer circulation lubricating oil system 11 that elements such as oil pipe are formed will clean cooling is input to end cap 6 oil inlet holes, enters clutch shaft 9 oilholes again
Pass through the inclined hole of axle sleeve 12 at last
Lubricated to block bearing 10, can produce centrifugal force when rotating with clutch assembly because of lubricant oil, axle sleeve 12 inclined oil hole of air become 60 ° of angles and are symmetrically distributed with axis be the comparatively desirable lubricated angle that draws after experiment, can sufficient lubrication arrive block bearing 10, the oilhole on axle sleeve 12 and the clutch shaft 9 in addition
With
Be the comparatively desirable lubricated angular aperture that obtains through experiment, to the not influence of pressure of former outer circulation lubrication system.
The utility model sealing configuration also is applicable to similar places such as other engineering machinery, building machinery, load-carrying vehicle except that being used for loading machine gearbox.
Claims (5)
1. wheel loader dynamic power shift gear box block bearing lubricating structure, comprise clutch (3), output shaft assembly (5), output shaft gear (6), reserve (7) and gear box (8), it is characterized in that, be provided with three groups of centres that connect by output shaft gear (6) in the gear box (8) oilhole is arranged, two ends are provided with the clutch shaft (9) of inclined oil hole of air, there is the block bearing (10) of two side oilholes to be positioned at the two ends of clutch shaft (9), block bearing (10) inner ring and clutch shaft (9) transition fit, outer ring and gear box (8) transition fit, block bearing (10) and clutch (3) are by having an oil groove, and there are two inclined oil hole of air to be connected with its axle sleeve that communicates (12), two inclined oil hole of air on the axle sleeve (12) communicate with two side oilholes of block bearing (10), the inclined oil hole of air at clutch shaft (9) two ends is pressed close to two side oilholes that block bearing (10) is located, the oilhole of clutch shaft (9) communicates with axle sleeve (12) finishing bathtray, clutch shaft (9) termination is by being provided with the end cap (14) of bringing oilhole into, clutch shaft (9) main oil-hole communicates with end cap (14) oil inlet hole, the oil groove of clutch shaft (9) end is provided with seal ring (13), reserve (7) is connected with the gear-box lubricating oil liquid external circulating system (11) of being located at the fuel tank outside, and end cap (14) oil inlet hole communicates with gear-box lubricating oil liquid external circulating system (11) by oil pipe.
2. wheel loader dynamic power shift gear box block bearing lubricating structure according to claim 1 is characterized in that the main lubricant oil aperture of described clutch shaft (9) is
The pore size of 8, two side oilholes is
4.
3. wheel loader dynamic power shift gear box block bearing lubricating structure according to claim 1 is characterized in that, the aperture of (10) two side oilholes of described block bearing is
3.
4. wheel loader dynamic power shift gear box block bearing lubricating structure according to claim 1, it is characterized in that, described gear-box lubricating oil liquid external circulating system (11) is made up of pump, secondary filter and cooler, and pump is connected with secondary filter by valve, and secondary filter is connected with cooler.
5. wheel loader dynamic power shift gear box block bearing lubricating structure according to claim 1 is characterized in that two inclined oil hole of air pore sizes of described axle sleeve (12) are
3, inclined oil hole of air becomes 60 ° of angles and is symmetrically distributed with axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200711102U CN201090719Y (en) | 2007-06-15 | 2007-06-15 | Back-up bearing lubricating structure of wheel type loader power shift gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200711102U CN201090719Y (en) | 2007-06-15 | 2007-06-15 | Back-up bearing lubricating structure of wheel type loader power shift gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090719Y true CN201090719Y (en) | 2008-07-23 |
Family
ID=39862480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200711102U Expired - Fee Related CN201090719Y (en) | 2007-06-15 | 2007-06-15 | Back-up bearing lubricating structure of wheel type loader power shift gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090719Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836167A (en) * | 2012-11-27 | 2014-06-04 | 重庆大学 | Dynamic coupling device cooling and lubricating system of hybrid electric vehicle |
| CN104864082A (en) * | 2015-05-15 | 2015-08-26 | 江苏林海动力机械集团公司 | Engine gearbox engine oil circulating system |
| CN114321341A (en) * | 2021-11-30 | 2022-04-12 | 江苏汇智高端工程机械创新中心有限公司 | Transfer case lubricating structure |
-
2007
- 2007-06-15 CN CNU2007200711102U patent/CN201090719Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836167A (en) * | 2012-11-27 | 2014-06-04 | 重庆大学 | Dynamic coupling device cooling and lubricating system of hybrid electric vehicle |
| CN103836167B (en) * | 2012-11-27 | 2016-02-03 | 重庆大学 | A kind of dynamic coupling device cooling and lubricating system of hybrid vehicle |
| CN104864082A (en) * | 2015-05-15 | 2015-08-26 | 江苏林海动力机械集团公司 | Engine gearbox engine oil circulating system |
| CN114321341A (en) * | 2021-11-30 | 2022-04-12 | 江苏汇智高端工程机械创新中心有限公司 | Transfer case lubricating structure |
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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: 20080723 Termination date: 20140615 |
|
| EXPY | Termination of patent right or utility model |