CN101962962A - Front drive axle of wheel-type small-sized excavator - Google Patents
Front drive axle of wheel-type small-sized excavator Download PDFInfo
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- CN101962962A CN101962962A CN 201010507345 CN201010507345A CN101962962A CN 101962962 A CN101962962 A CN 101962962A CN 201010507345 CN201010507345 CN 201010507345 CN 201010507345 A CN201010507345 A CN 201010507345A CN 101962962 A CN101962962 A CN 101962962A
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- spring
- front axle
- spring housing
- fixedly connected
- axle
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Abstract
The invention relates to a front drive axle of a wheel-type small-sized excavator, which comprises a front axle body and a chassis cross beam, and is characterized in that an elastic support mechanism is arranged between the front axle body and the chassis cross beam, and is mainly composed of a spring housing, a spring seat, a spring and a pressed cover, wherein, the spring housing is fixedly connected with the chassis cross beam; the spring seat is fixedly connected with the front axle body; the spring is arranged in the inner circle of the spring housing; and the pressed cover is fixedly connected with the upper end of the spring housing. The front drive axle has the beneficial effects that two springs are arranged on a rear axle at the distance of 860, increasing the supporting points, so that the bending moment at the connection part of a front axle speed changing box and a girder is lightened, and the oil is prevented from leaking at the part and the front axle can realize low costs and great profits, and is convenient for producing new vehicles and transforming old products.
Description
Technical field
The invention belongs to excavator, relate in particular to a kind of drive front axle of small-sized wheeled digger.
Background technology
Along with the develop rapidly of Chinese national economy, wheel excavator development also very rapidly.But because wheel excavator work operating mode is jolted seriously, cause the moment of flexure that increases the weight of propons gearbox and beam junction, form by three parts because of propons again leakage of oil easily takes place.Application number: 200820229157.1 disclose a kind of drive front axle of small-sized wheeled digger relates to excavator mechanism, comprise pontic, knuckle, wheel hub, turn to oil cylinder, balancing cylinder, supporting base form, it is characterized in that pontic is that the universal joint that the Double half axle double-pin in deceleration assembly, axle housing, the knuckle constitutes is formed, two balancing cylinders directly are fixed on the chassis, the pontic middle part is provided with supporting base, extends horizontal axis on the chassis and directly is inserted in the supporting base hole movingly.Advantage is that the mini-excavator propons adopts the driving propons, structure is that car drive front axle is combined and simplification rationally with present mini-excavator propons, the present crossbeam of deletion mini-excavator, the balancing cylinder top directly is connected with the chassis, supporting seat is set directly on the pontic, whole center of gravity descends good stability.Can move freely in the building site that geological condition is relatively poor.This technical pattern complexity especially is unsuitable for the transformation of existing product.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, and a kind of drive front axle of small-sized wheeled digger is provided, put two springs at a distance of 860 places, increase the strong point, alleviate the moment of flexure of propons gearbox and beam junction, prevent leakage of oil herein at back axle.
The present invention for achieving the above object, by the following technical solutions: a kind of drive front axle of small-sized wheeled digger, pontic and chassis crossrail before comprising, it is characterized in that: be provided with elastic support mechanism between pontic and the chassis crossrail before described, described elastic support mechanism mainly is made of spring housing, spring base, spring and gland, and fast spring housing of institute and chassis crossrail are affixed, and spring base and preceding pontic are affixed, described spring places circle in the spring housing, and described gland and spring housing upper end are affixed.
Beneficial effect: put two springs at back axle at a distance of 860 places, increase the strong point, alleviate the moment of flexure of propons gearbox and beam junction, prevent leakage of oil herein.Spend very low-costly, income is very big.All very convenient for producing new car and transforming old product.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the plan structure figure on chassis;
Fig. 3-Fig. 8 is a propons force analysis sketch.
The specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing and preferred embodiment.As shown in the figure,
A kind of drive front axle of small-sized wheeled digger, pontic and chassis crossrail before comprising, be provided with elastic support mechanism between pontic 1 and the chassis crossrail 2 before described, described elastic support mechanism mainly is made of spring housing 3, spring base 4, spring 5 and gland 6, described spring housing and chassis crossrail are affixed, spring base and preceding pontic are affixed by bolt 7, and described spring places circle in the spring housing, and described gland and spring housing upper end are affixed.
Operating principle:
Its structure diagram such as Fig. 3-8:
Original structure is calculated:
Its stressed sketch is as shown in Figure 4: because of the stressed equalization of two-wheeled: RA=RB=6/2=3t
Calculate shearing: Q1=RA=3t (0＜x1＜921.5)
Q2=-RB=-3t (0＜x1＜921.5) draws shear force diagram, as shown in Figure 5
M1＝RAxX1(0≤x1≤921.5)M1max＝3x921.5＝2.8tm，M1min＝0tm
Draw bending moment diagram shown in Fig. 8 fine line
M2＝RAxX1(0≤x1≤921.5)M2max＝3x921.5＝2.8tm，M2min＝0tm
Draw bending moment diagram shown in Fig. 8 fine line
After the transformation
RA=RB=3t is put two springs at back axle at a distance of 860 places, increases the strong point, alleviates the moment of flexure of 2 of F, G, in case leakage of oil herein, now selecting maximum working pressure (MWP) for use is two springs of 1.07t
So P '=6-1.07X2=3.86t
So P '=6-1.07X2=3.86t
Each section result of calculation table
At F, 2 of G locate the bending moment ratio that the bolt group born and reduced in the past approximately: (2.8-2.3)/2.8=18% the above, only be preferred embodiment of the present invention, be not that structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. drive front axle of small-sized wheeled digger, pontic and chassis crossrail before comprising, it is characterized in that: be provided with elastic support mechanism between pontic and the chassis crossrail before described, described elastic support mechanism mainly is made of spring housing, spring base, spring and gland, described spring housing and chassis crossrail are affixed, spring base and preceding pontic are affixed, and described spring places circle in the spring housing, and described gland and spring housing upper end are affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507345 CN101962962A (en) | 2010-10-14 | 2010-10-14 | Front drive axle of wheel-type small-sized excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010507345 CN101962962A (en) | 2010-10-14 | 2010-10-14 | Front drive axle of wheel-type small-sized excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101962962A true CN101962962A (en) | 2011-02-02 |
Family
ID=43516003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010507345 Pending CN101962962A (en) | 2010-10-14 | 2010-10-14 | Front drive axle of wheel-type small-sized excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101962962A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4152004A (en) * | 1976-06-08 | 1979-05-01 | Leibherr Hydraulikbagger Gmbh | Building machine, particularly an excavator |
| DE19624288C1 (en) * | 1996-06-18 | 1998-01-22 | Neunkirchener Maschinen Und Ac | Axle for wheel excavator with lamella brake in wheel hub |
| GB2430750A (en) * | 2005-10-03 | 2007-04-04 | Tt Electronics Technology Ltd | Position sensing apparatus and method |
| CN101412346A (en) * | 2008-11-26 | 2009-04-22 | 晋江市连盛液压机械有限公司 | Drive front axle of small-sized wheeled digger |
| CN201833844U (en) * | 2010-10-14 | 2011-05-18 | 天津玖丰重工机械有限公司 | Driving front axle for small wheeled excavator |
-
2010
- 2010-10-14 CN CN 201010507345 patent/CN101962962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4152004A (en) * | 1976-06-08 | 1979-05-01 | Leibherr Hydraulikbagger Gmbh | Building machine, particularly an excavator |
| DE19624288C1 (en) * | 1996-06-18 | 1998-01-22 | Neunkirchener Maschinen Und Ac | Axle for wheel excavator with lamella brake in wheel hub |
| GB2430750A (en) * | 2005-10-03 | 2007-04-04 | Tt Electronics Technology Ltd | Position sensing apparatus and method |
| CN101412346A (en) * | 2008-11-26 | 2009-04-22 | 晋江市连盛液压机械有限公司 | Drive front axle of small-sized wheeled digger |
| CN201833844U (en) * | 2010-10-14 | 2011-05-18 | 天津玖丰重工机械有限公司 | Driving front axle for small wheeled excavator |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110202 |