CN103541400A - Leg cylinder protection mechanism of backhoe loader - Google Patents
Leg cylinder protection mechanism of backhoe loader Download PDFInfo
- Publication number
- CN103541400A CN103541400A CN201310490083.2A CN201310490083A CN103541400A CN 103541400 A CN103541400 A CN 103541400A CN 201310490083 A CN201310490083 A CN 201310490083A CN 103541400 A CN103541400 A CN 103541400A
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- oil cylinder
- leg cylinder
- support oil
- backplate
- leg
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Abstract
The invention discloses a leg cylinder protection mechanism of a backhoe loader. The leg cylinder protection mechanism comprises a leg assembly (7), a leg cylinder (6), a protection plate (5) and a slider (2). The leg assembly (7) is hinged to the leg cylinder (6) by a hinge pin (1), slide grooves are formed in the inner sides of the protection plate (5), one end of the protection plate (5) is hinged to the leg assembly (7) by the hinge pin (1), and the slider (2) is fixed onto the leg cylinder (6) and is nested in the slide groove in the inner side of the other end of the protection plate (5). The leg cylinder protection mechanism has the advantages that the protection plate is added onto the leg cylinder, the slider is fixed onto the leg cylinder, the protection plate covers the slider, and the slider is in frictional contact with the protection plate when the leg cylinder telescopes, so that hard articles such as gravels can be prevented from being in contact with a push rod of the leg cylinder to damage the push rod of the leg cylinder, and the service life of the leg cylinder can be prolonged.
Description
Technical field
The present invention relates to a kind of loader-digger support oil cylinder protection mechanism, belong to loader component technology field.
Background technology
It is busy that loader-digger is commonly called as two, is a kind of collection to excavate the Versatile Construction Machinery that is loaded into one.Complete machine rational and compact, handsome in appearance, operation comfort and convenient, turning radius is little, favorable working performance, cost performance are high.It is widely used in the construction of the object of construction production such as municipal administration, building, oil field, water conservancy, forest farm, military engineering, can be engaged in the several work such as excavation, shovel dress, delivery and smooth location, is the desirable type of realizing a tractor serves several purposes.Yet in actual use, the direct kiss the earth of supporting leg, support oil cylinder push rod and hydraulic lock are easy to be damaged by materials such as sandstones, cause the scuffing of colliding with of push rod and hydraulic lock, and then cause the often problem such as inoperative of oil cylinder leakage of oil, hydraulic lock, shorten greatly the application life of oil cylinder and hydraulic lock, strengthened the maintenance cost of complete machine.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of loader-digger support oil cylinder protection mechanism, prevents that the hard things such as sandstone from damaging support oil cylinder push rod, extended the support oil cylinder life-span.
To achieve these goals; the technical solution used in the present invention is: a kind of loader-digger support oil cylinder protection mechanism; comprise supporting leg assembly and support oil cylinder; supporting leg assembly and support oil cylinder are hinged by bearing pin; also comprise backplate and slide block, backplate inner side has chute, and backplate one end is hinged on supporting leg assembly by bearing pin; slide block is fixed on support oil cylinder, and chute and the slide block of backplate other end inner side are nested.
Further, backplate is comprised of bent plate, stiffener and baffle plate, and the both sides, one end of bent plate are welded with baffle plate, between two baffle plates, are welded with stiffener.
Further, the material of slide block is nylon material.
Compared with prior art: the present invention has added backplate on support oil cylinder, on support oil cylinder, fixed slide block, backplate covers on slide block, slide block and backplate CONTACT WITH FRICTION when support oil cylinder is flexible, prevent that the hard things such as sandstone from contacting damage support oil cylinder push rod with support oil cylinder push rod, extended the support oil cylinder life-span.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is backplate front view of the present invention;
Fig. 3 is backplate top view of the present invention;
Fig. 4 is backplate lateral view of the present invention.
In figure: 1, bearing pin, 2, slide block, 3, baffle plate, 4, stiffener, 5, backplate, 6, support oil cylinder, 7, supporting leg assembly, 8, bent plate.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1; this loader-digger support oil cylinder protection mechanism; comprise supporting leg assembly 7 and support oil cylinder 6; supporting leg assembly 7 and support oil cylinder 6 are hinged by bearing pin 1; also comprise backplate 5 and slide block 2, backplate 5 inner sides have chute, and backplate 5 one end are hinged on supporting leg assembly 7 by bearing pin 1; slide block 2 is fixed on support oil cylinder 6, and chute and the slide block 2 of backplate 5 other end inner sides are nested.
On support oil cylinder 6, added backplate 5, on support oil cylinder 6, fixed slide block 2, backplate 5 covers on slide block 2, slide block 2 CONTACT WITH FRICTION in the chute of backplate 5 when support oil cylinder 6 is flexible, all the time guarantee the spacing between backplate 5 and support oil cylinder 6 push rods, and can, by the moving angle of bearing pin 1 self-regulating rotary to follow support oil cylinder 6 actions, prevent that the hard things such as sandstone from contacting the push rod that damages support oil cylinder 6 with support oil cylinder 6 push rods, extended 6 life-spans of support oil cylinder.
As shown in Figures 2 to 4, backplate 5 is comprised of bent plate 8, stiffener 4 and baffle plate 3, and the both sides, one end of bent plate 8 are welded with between baffle plate 3, two baffle plates 3 and are welded with stiffener 4.
In order further to improve the effect of slide block 2 and backplate 5 protection support oil cylinders 6, the material of slide block 2 is nylon material.
Claims (3)
1. a loader-digger support oil cylinder protection mechanism; comprise supporting leg assembly (7) and support oil cylinder (6); supporting leg assembly (7) and support oil cylinder (6) are hinged by bearing pin (1); it is characterized in that; also comprise backplate (5) and slide block (2), backplate (5) inner side has chute, and backplate (5) one end is hinged on supporting leg assembly (7) by bearing pin (1); it is upper that slide block (2) is fixed on support oil cylinder (6), and chute and the slide block (2) of backplate (5) other end inner side are nested.
2. a kind of loader-digger support oil cylinder protection mechanism according to claim 1; it is characterized in that; described backplate (5) is comprised of bent plate (8), stiffener (4) and baffle plate (3); the both sides, one end of bent plate (8) are welded with baffle plate (3), are welded with stiffener (4) between two baffle plates (3).
3. a kind of loader-digger support oil cylinder protection mechanism according to claim 2, is characterized in that, the material of described slide block (2) is nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310490083.2A CN103541400B (en) | 2013-10-18 | 2013-10-18 | A kind of loader-digger support oil cylinder protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310490083.2A CN103541400B (en) | 2013-10-18 | 2013-10-18 | A kind of loader-digger support oil cylinder protection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103541400A true CN103541400A (en) | 2014-01-29 |
| CN103541400B CN103541400B (en) | 2016-04-27 |
Family
ID=49965222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310490083.2A Active CN103541400B (en) | 2013-10-18 | 2013-10-18 | A kind of loader-digger support oil cylinder protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103541400B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790453A (en) * | 2015-05-07 | 2015-07-22 | 安徽新园矿山设备制造有限责任公司 | Breaking hammer oil port protection device |
| CN113550373A (en) * | 2021-06-29 | 2021-10-26 | 徐州徐工挖掘机械有限公司 | Hydro-cylinder backplate device and hydraulic shovel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122368A1 (en) * | 1999-04-21 | 2001-08-08 | Hitachi Construction Machinery Co., Ltd. | Construction machinery |
| CN201050082Y (en) * | 2007-06-15 | 2008-04-23 | 龙工(上海)机械制造有限公司 | Protecting device for oil cylinder |
| CN202401506U (en) * | 2012-01-05 | 2012-08-29 | 江苏柳工机械有限公司 | Supporting device for centrally-mounted excavating and loading machine |
| CN202418084U (en) * | 2012-01-19 | 2012-09-05 | 山东德立信液压有限公司 | Support oil cylinder of wheel excavator |
| CN202767147U (en) * | 2012-07-27 | 2013-03-06 | 徐州徐工挖掘机械有限公司 | Wheel excavator landing legs and dozer blade installation assembly |
| CN203613594U (en) * | 2013-10-18 | 2014-05-28 | 徐州徐工特种工程机械有限公司 | Supporting leg oil cylinder protection mechanism for loader-digger |
-
2013
- 2013-10-18 CN CN201310490083.2A patent/CN103541400B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1122368A1 (en) * | 1999-04-21 | 2001-08-08 | Hitachi Construction Machinery Co., Ltd. | Construction machinery |
| CN201050082Y (en) * | 2007-06-15 | 2008-04-23 | 龙工(上海)机械制造有限公司 | Protecting device for oil cylinder |
| CN202401506U (en) * | 2012-01-05 | 2012-08-29 | 江苏柳工机械有限公司 | Supporting device for centrally-mounted excavating and loading machine |
| CN202418084U (en) * | 2012-01-19 | 2012-09-05 | 山东德立信液压有限公司 | Support oil cylinder of wheel excavator |
| CN202767147U (en) * | 2012-07-27 | 2013-03-06 | 徐州徐工挖掘机械有限公司 | Wheel excavator landing legs and dozer blade installation assembly |
| CN203613594U (en) * | 2013-10-18 | 2014-05-28 | 徐州徐工特种工程机械有限公司 | Supporting leg oil cylinder protection mechanism for loader-digger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104790453A (en) * | 2015-05-07 | 2015-07-22 | 安徽新园矿山设备制造有限责任公司 | Breaking hammer oil port protection device |
| CN113550373A (en) * | 2021-06-29 | 2021-10-26 | 徐州徐工挖掘机械有限公司 | Hydro-cylinder backplate device and hydraulic shovel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103541400B (en) | 2016-04-27 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220815 Address after: No. 99, Kunpeng North Road, Xuzhou Economic and Technological Development Zone, Jiangsu Province, 221004 Patentee after: XCMG CONSTRUCTION MACHINERY Co.,Ltd. SCIENCE AND TECHNOLOGY BRANCH Address before: No. 99, Guangde Road, Economic Development Zone, Xuzhou City, Jiangsu Province, 221004 Patentee before: XUZHOU XUGONG SPECIAL CONSTRUCTION MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |