CN201196255Y - Improved structure of differential gear for wheel type loader - Google Patents
Improved structure of differential gear for wheel type loader Download PDFInfo
- Publication number
- CN201196255Y CN201196255Y CNU2008201022686U CN200820102268U CN201196255Y CN 201196255 Y CN201196255 Y CN 201196255Y CN U2008201022686 U CNU2008201022686 U CN U2008201022686U CN 200820102268 U CN200820102268 U CN 200820102268U CN 201196255 Y CN201196255 Y CN 201196255Y
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- CN
- China
- Prior art keywords
- bevel gear
- bevel
- planet gear
- axle
- gear
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- 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 discloses an improvement structure of a differential device for a wheel type loader, which comprises a differential mechanism right shell, a semi-axle bevel gear, a planet bevel gear, a differential device left shell, a semi-axle bevel gear gasket, a cross shaft and a planet bevel gear gasket, wherein two gaskets which are respectively sleeved on the two heads of the cross shaft through a shaft hole sleeve are arranged, and a small end of the planet bevel gear is outwardly extended with a ring boss which surrounds a shaft hole along an axial direction of the shaft hole. Because the improvement structure is equipped with a boss on a small end surface of a prior planet bevel gear, when the diameter of a word shaft is increased and the diameter of an inner hole of the planet bevel gear is correspondingly increased, the thickness of the wall of the small end surface of the planet bevel gear can be still kept not to change, and the strength of the planet bevel gear can not be weakened. The improvement structure has the advantages that when the diameter of the cross shaft and the diameter of the inner hole of a planet gear are increased, the size of the differential device is kept not to change, the structure is improved in a lowest cost, and the reliability, the structure strength and the service life of the differential device are increased.
Description
Technical field
The utility model relates to a kind of part of wheel loader, particularly relates to the improvement structure of a kind of wheel loader with differential mechanism.
Background technique
The ransaxle differential mechanism that domestic many zl50 loaders are used is to continue to use the differential mechanism that ZL40 uses, and the differential mechanism that this ZL40 uses (as shown in Figure 1 and Figure 2) is made up of differential right casing 1 ', semi-axle bevel gear 2 ', bevel planet gear 3 ', differential left shell 4 ', semi-axle bevel gear pad 5 ', cross axle 6 ', bevel planet gear pad 7 '.Described cross axle 6 ' diameter is φ 25mm.But along with the raising of loader tractive force, load increases, and the fracture of cross axle 6 ' premature wear often occurs.For this reason, at present differential mechanism (as shown in Figure 3) is with cross axle 6 " diameter change into about φ 28mm; but because the increase of cross axle 6 ' diameter; must bring bevel planet gear 3 " diameter of bore increases (as shown in Figure 4), if keep bevel planet gear 3 " gear parameter is constant, then bevel planet gear 3 " the small end face wall thickness is thin partially, bevel planet gear 3 " intensity reduces; and cause bevel planet gear 3 easily " the early stage damage, reduce working life.
The model utility content
The purpose of this utility model is to provide the improvement structure of the higher wheel loader of a kind of longer service life, structural strength with differential mechanism.It keeps existing bevel planet gear gear parameter constant when changing the cross axle diameter into the φ 28mm left and right sides for φ 25mm, keeps still when the bevel planet gear endoporus strengthens that bevel planet gear small end face wall thickness is constant, intensity is constant.
In order to reach above-mentioned purpose, solution of the present utility model is:
The utility model is the improvement structure of a kind of wheel loader with differential mechanism, and it is made up of differential right casing 1, semi-axle bevel gear 2, bevel planet gear 3, differential left shell 4, semi-axle bevel gear pad 5, cross axle 6, bevel planet gear pad 7; Described differential right casing 1 and differential left shell 4 snappings constitute the holding cavity of ccontaining each part, and described semi-axle bevel gear 2, bevel planet gear 3, cross axle 6 all are installed in this holding cavity; Described semi-axle bevel gear 2 and bevel planet gear 3 engagements are provided with semi-axle bevel gear pad 5 between semi-axle bevel gear 2 and holding cavity, be provided with bevel planet gear pad 7 between bevel planet gear 3 and holding cavity; Described bevel planet gear 3 has two two that are socketed in cross axle 6 respectively by axis hole 31; Extend outward an annular boss 32 around axis hole 31 at the small end of described bevel planet gear 3 along the axial direction of axis hole 31.
Because the utility model is to have increased boss on existing small end face at bevel planet gear, this makes that the cross axle diameter increases, during the corresponding increase of bevel planet gear diameter of bore, still can keep bevel planet gear small end face wall thickness constant, the intensity of bevel planet gear can not weaken.Its advantage is when being to have strengthened cross axle diameter and bevel planet gear diameter of bore, keeps the size constancy of differential mechanism, improves reliability, structural strength and the working life of having improved differential mechanism with minimum cost.The improvement of this structure is applied to the ransaxle differential mechanism that zl50 loader is used, and the cross axle diameter is changed into about φ 28mm by φ 25mm, and the bevel planet gear diameter of bore is corresponding to be increased to about φ 28mm, still can keep existing bevel planet gear gear parameter constant.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Description of drawings
Fig. 1 is the organigram of the differential mechanism of early stage technology;
Fig. 2 is the zoomed-in view of the bevel planet gear of early stage technology;
Fig. 3 is the organigram of the differential mechanism of prior art;
Fig. 4 is the zoomed-in view of the bevel planet gear of prior art;
Fig. 5 is the organigram of the utility model differential mechanism;
Fig. 6 is the zoomed-in view of bevel planet gear of the present utility model.
Embodiment
As shown in Figure 5, the utility model is a kind of differential mechanism, and it is made up of differential right casing 1, semi-axle bevel gear 2, bevel planet gear 3, differential left shell 4, semi-axle bevel gear pad 5, cross axle 6, bevel planet gear pad 7.
Described differential right casing 1 and differential left shell 4 snappings constitute the holding cavity 14 of ccontaining each part.Described semi-axle bevel gear 2, bevel planet gear 3, cross axle 6 all are installed in this holding cavity 14.Described semi-axle bevel gear 2 and bevel planet gear 3 engagements.Between semi-axle bevel gear 2 and holding cavity 14, be provided with semi-axle bevel gear pad 5, between bevel planet gear 3 and holding cavity 14, be provided with bevel planet gear pad 7.
With reference to shown in Figure 5, described bevel planet gear 3 has axis hole 31 as Fig. 6, extends outward an annular boss 32 around axis hole at the small end of bevel planet gear 3 along the axle direction of axis hole 31, and these annular boss 32 thickness are the thickness that bevel planet gear 3 is faced the wall and meditated.Bevel planet gear 3 has two, is socketed in two of cross axle 6 respectively by axis hole 31.
Structural principle of the present utility model:
The foregoing description only is used for further specifying the improvement of a kind of wheel loader of the present utility model with ransaxle differential mechanism bevel planet gear; but the utility model is not limited to this embodiment; every foundation technical spirit of the present utility model all falls in the protection domain of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Emphasis of the present invention just is: the small end at bevel planet gear increases a boss.
Claims (1)
1. a wheel loader is with the improvement structure of differential mechanism, and it is made up of differential right casing (1), semi-axle bevel gear (2), bevel planet gear (3), differential left shell (4), semi-axle bevel gear pad (5), cross axle (6), bevel planet gear pad (7); Described differential right casing (1) and differential left shell (4) snapping constitute the holding cavity of ccontaining each part, and described semi-axle bevel gear (2), bevel planet gear (3), cross axle (6) all are installed in this holding cavity; Described semi-axle bevel gear (2) and bevel planet gear (3) engagement are provided with semi-axle bevel gear pad (5) between semi-axle bevel gear (2) and holding cavity, be provided with bevel planet gear pad (7) between bevel planet gear (3) and holding cavity; Described bevel planet gear (3) has two two that are socketed in cross axle (6) respectively by axis hole (31); It is characterized in that: extend outward an annular boss around axis hole (31) (32) along the axial direction of axis hole (31) at the small end of described bevel planet gear (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201022686U CN201196255Y (en) | 2008-05-08 | 2008-05-08 | Improved structure of differential gear for wheel type loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201022686U CN201196255Y (en) | 2008-05-08 | 2008-05-08 | Improved structure of differential gear for wheel type loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196255Y true CN201196255Y (en) | 2009-02-18 |
Family
ID=40415891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201022686U Expired - Fee Related CN201196255Y (en) | 2008-05-08 | 2008-05-08 | Improved structure of differential gear for wheel type loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196255Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104508329A (en) * | 2012-07-25 | 2015-04-08 | 丰田自动车株式会社 | Differential gear for vehicle |
-
2008
- 2008-05-08 CN CNU2008201022686U patent/CN201196255Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104508329A (en) * | 2012-07-25 | 2015-04-08 | 丰田自动车株式会社 | Differential gear for vehicle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20160508 |