CN102900104A - Telescopic excavation end working device for backhoe loader - Google Patents

Telescopic excavation end working device for backhoe loader Download PDF

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Publication number
CN102900104A
CN102900104A CN2012104405262A CN201210440526A CN102900104A CN 102900104 A CN102900104 A CN 102900104A CN 2012104405262 A CN2012104405262 A CN 2012104405262A CN 201210440526 A CN201210440526 A CN 201210440526A CN 102900104 A CN102900104 A CN 102900104A
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CN
China
Prior art keywords
dipper
point
swing arm
telescopic
articulated
Prior art date
Application number
CN2012104405262A
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Chinese (zh)
Inventor
刘寅
刘巧珍
贾志伟
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江苏柳工机械有限公司
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Application filed by 江苏柳工机械有限公司 filed Critical 江苏柳工机械有限公司
Priority to CN2012104405262A priority Critical patent/CN102900104A/en
Publication of CN102900104A publication Critical patent/CN102900104A/en

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Abstract

The invention discloses a telescopic excavation end working device for a backhoe loader. The telescopic excavation end working device comprises a rotary support, a movable arm, a bucket rod component, a rocker and an excavation bucket, wherein the movable arm is hinged to a frame of the whole backhoe loader through the rotary support; the bucket rod component comprises a bucket rod body and a telescopic bucket rod; and the telescopic bucket rod is arranged in the bucket rod body. The telescopic excavation end working device is high in stability and compact in structure; the weight of the working device is reduced, so that the working efficiency is improved; through the function of a telescopic arm, an aim of increasing the excavation radius in a certain range is fulfilled; and by optimizing positions of hinge joints, the performance of the excavation end working device is improved, and excavation force of the bucket rod is increased by 10 percent under the condition of the same output power of the motor.

Description

The telescopic excacation device of loader-digger

Technical field

The present invention relates to the telescopic excacation device of a kind of digging end equipment of loader-digger, particularly a kind of loader-digger, belong to technical field of engineering machinery.

Background technology

The loader-digger front and back end is respectively load terminal and digging end, and a same complete machine can be realized loading and data mining duty, therefore is commonly called as to be " two is busy ".

The excacation device of loader-digger can be divided into oil cylinder formula from beginning to end and two kinds of forms of oil cylinder eclipsed form according to the type of attachment of oil cylinder at present; Can be divided into two kinds of straight swing arm and curved swing arms according to the boom structure form; Stretch two kinds of formula and extending types in can being divided into according to the form of structure of expansion link; Be divided into according to the relation of swing arm and dipper that swing arm is built in dipper and dipper is built in two kinds of forms of swing arm; Be divided into according to the relation of pivoting support and swing arm that pivoting support is built in swing arm and swing arm is built in two kinds of forms of pivoting support.

The at present typical telescopic equipment of loader-digger mainly contains three kinds: stretch the formula dipper in the curved swing arm of JCB's oil cylinder eclipsed form, swing arm is built in dipper, pivoting support is built in the curved swing arm extending type of the oil cylinder formula from beginning to end dipper of swing arm and U.S. Ka Tebile, dipper is built in swing arm, swing arm is built in pivoting support and the straight swing arm of U.S.'s Keyes's oil cylinder formula from beginning to end stretches the formula dipper, dipper is built in swing arm, and pivoting support is built in swing arm.

Summary of the invention

Goal of the invention: in order to optimize the performance of loader-digger digging end equipment, in the identical situation of engine output, obtain larger dipper digging force, the invention provides a kind of pin joint through the telescopic excacation device of loader-digger of optimal design, this excacation device characteristic is to stretch the formula dipper in the straight swing arm of oil cylinder eclipsed form, the dipper that is arranged as of hinged place is built in swing arm, and swing arm is built in pivoting support; All not identical with common excavation boom structure layout, structural stability is strong, and compact conformation alleviates equipment weight, so that operating efficiency improves, can realize increasing within the specific limits by the telescopic arm function again simultaneously the purpose of digging radius.

Technical scheme: the telescopic excacation device of a kind of loader-digger, comprise pivoting support, swing arm, dipper assembly, rocking bar and Excavating bucket, described swing arm is articulated on the complete machine vehicle frame by pivoting support, described dipper assembly comprises dipper body and flexible dipper, and described flexible dipper is built in the dipper body; Described swing arm and pivoting support are articulated in the A point, are provided with boom cylinder between described swing arm and the pivoting support, and boom cylinder and pivoting support and swing arm are articulated in respectively B point and C point, and described swing arm is built in pivoting support; Described dipper body and swing arm are articulated in the D point, and hinged place dipper body is built in swing arm; Be provided with bucket arm cylinder between described swing arm and the dipper body, described bucket arm cylinder is articulated in respectively E point and F point with swing arm and dipper body respectively; Be provided with telescopic oil cylinder between described dipper body and the flexible dipper, along dipper body length direction stretching motion, described telescopic oil cylinder and dipper body are articulated in the G point to flexible dipper under the effect of telescopic oil cylinder; Described flexible dipper and rocking bar are articulated in the H point, are provided with rotary ink tank between described flexible dipper and the rocking bar, and described rotary ink tank and flexible dipper and rocking bar are articulated in respectively I point and J point; Described flexible dipper and Excavating bucket are articulated in the K point, are provided with connecting rod between described rocking bar and the Excavating bucket, and described connecting rod and rocking bar and Excavating bucket are articulated in respectively L point and M point.This excacation device characteristic is to stretch the formula dipper in the straight swing arm of oil cylinder eclipsed form, and the dipper that is arranged as of hinged place is built in swing arm, and swing arm is built in pivoting support; All not identical with common excavation boom structure layout, structural stability is strong, and compact conformation alleviates equipment weight, so that operating efficiency improves, can realize increasing within the specific limits by the telescopic arm function again simultaneously the purpose of digging radius.

The optimization of digging end equipment mainly is the optimization of each linkage pin joint position, in order further to optimize the performance of digging end equipment, in the identical situation of engine output, obtain larger dipper digging force, the point position of described each pin joint relation is as follows: make that datum length is 1, JL=1 then, 4.1<AB<4.3,9<AE<9.1,14.8<AC<15,19.8<AD<20,12.4<DE<12.6,1.6<FG<1.7,3.7<DF<3.85,4.3<DG<4.4,11.8<HI<12,3<JH<3.2,3<LM<3.12,2.7<MK<2.8,2.1<HK<2.2,3.1<HL<3.2, I point to the distance at telescopic oil cylinder center is between 1.1 to 1.25, the BC collapsing length is between 10.5 to 19, the EF collapsing length is between 9.5 to 16, and the telescopic oil cylinder collapsing length is between 8.5 to 15, and the IJ collapsing length is between 13 to 22.5.

As preference, the some position of described each pin joint relation is as follows: make that datum length is 1, then JL=1, AB=4.2, AE=9.06, AC=14.88, AD=19.82, DE=12.53, FG=1.64, DF=3.79, DG=4.35, HI=11.9, JH=3.1, LM=3.09, MK=2.75, HK=2.17, HL=3.17, I point to the distance at telescopic oil cylinder center is 1.19, the BC collapsing length is between 10.83 to 18.74, the EF collapsing length is between 9.52 to 15.83, and the telescopic oil cylinder collapsing length is between 8.9 to 14.52, and the IJ collapsing length is between 13.25 to 22.48.

Beneficial effect: digging end equipment structural stability of the present invention is strong, and compact conformation alleviates equipment weight, so that operating efficiency improves, can realize increasing within the specific limits by the telescopic arm function again simultaneously the purpose of digging radius; By the performance to the optimization and improvement digging end equipment of the some position of each pin joint, the dipper digging force increases by 10% in the identical situation of engine output.

Description of drawings

Structural representation when Fig. 1 is digging end equipment contraction of the present invention;

Structural representation when Fig. 2 is digging end equipment stretching, extension of the present invention.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

As illustrated in fig. 1 and 2, the telescopic excacation device of a kind of loader-digger, comprise pivoting support 1, swing arm 2, dipper assembly 3, rocking bar 4 and Excavating bucket 5, described swing arm 2 is articulated on the complete machine vehicle frame by pivoting support 1, described dipper assembly 3 comprises dipper body 31 and flexible dipper 32, and described flexible dipper 32 is built in dipper body 31; Described swing arm 2 is articulated in the A point with pivoting support 1, is provided with boom cylinder 6 between described swing arm 2 and the pivoting support 1, and boom cylinder 6 is articulated in respectively B point and C point with pivoting support 1 and swing arm 2, and described swing arm 2 is built in pivoting support 1; Described dipper body 31 is articulated in the D point with swing arm 2, and hinged place dipper body 31 is built in swing arm 2; Be provided with bucket arm cylinder 7 between described swing arm 2 and the dipper body 31, described bucket arm cylinder 7 is articulated in respectively E point and F point with swing arm 2 and dipper body 31 respectively; Be provided with telescopic oil cylinder 8 between described dipper body 31 and the flexible dipper 32, along dipper body 31 length direction stretching motions, described telescopic oil cylinder 8 is articulated in the G point with dipper body 31 to flexible dipper 32 under the effect of telescopic oil cylinder 8; Described flexible dipper 32 is articulated in the H point with rocking bar 4, is provided with rotary ink tank 9 between described flexible dipper 32 and the rocking bar 4, and described rotary ink tank 9 is articulated in respectively I point and J point with flexible dipper 32 and rocking bar 4; Described flexible dipper 32 is articulated in the K point with Excavating bucket 5, is provided with connecting rod 10 between described rocking bar 4 and the Excavating bucket 5, and described connecting rod 10 is articulated in respectively L point and M point with rocking bar 4 and Excavating bucket 5.This excacation device characteristic is to stretch formula dipper assembly 3 in the straight swing arm 2 of oil cylinder eclipsed form, and the dipper assembly 3 that is arranged as of hinged place is built in swing arm 2, and swing arm built-in 2 is in pivoting support 1; All not identical with common excavation boom structure layout, structural stability is strong, and compact conformation alleviates equipment weight, so that operating efficiency improves, can realize increasing within the specific limits by the telescopic arm function again simultaneously the purpose of digging radius.

The optimization of digging end equipment mainly is the optimization of each linkage pin joint position, in order further to optimize the performance of digging end equipment, in the identical situation of engine output, obtain larger dipper digging force, the point position of described each pin joint relation is as follows: make that datum length is 1, JL=1 then, 4.1<AB<4.3,9<AE<9.1,14.8<AC<15,19.8<AD<20,12.4<DE<12.6,1.6<FG<1.7,3.7<DF<3.85,4.3<DG<4.4,11.8<HI<12,3<JH<3.2,3<LM<3.12,2.7<MK<2.8,2.1<HK<2.2,3.1<HL<3.2, I point to the distance at telescopic oil cylinder 8 centers is between 1.1 to 1.25, the BC collapsing length is between 10.5 to 19, the EF collapsing length is between 9.5 to 16, and telescopic oil cylinder 8 collapsing lengths are between 8.5 to 15, and the IJ collapsing length is between 13 to 22.5.

As preference, the some position of described each pin joint relation is as follows: make that datum length is 1, then JL=1, AB=4.2, AE=9.06, AC=14.88, AD=19.82, DE=12.53, FG=1.64, DF=3.79, DG=4.35, HI=11.9, JH=3.1, LM=3.09, MK=2.75, HK=2.17, HL=3.17, I point to the distance at telescopic oil cylinder 8 centers is 1.19, the BC collapsing length is between 10.83 to 18.74, the EF collapsing length is between 9.52 to 15.83, and telescopic oil cylinder 8 collapsing lengths are between 8.9 to 14.52, and the IJ collapsing length is between 13.25 to 22.48.

Claims (3)

1. telescopic excacation device of loader-digger, comprise pivoting support (1), swing arm (2), dipper assembly (3), rocking bar (4) and Excavating bucket (5), described swing arm (2) is articulated on the complete machine vehicle frame by pivoting support (1), it is characterized in that: described dipper assembly (3) comprises dipper body (31) and flexible dipper (32), and described flexible dipper (32) is built in dipper body (31); Described swing arm (2) is articulated in the A point with pivoting support (1), be provided with boom cylinder (6) between described swing arm (2) and the pivoting support (1), boom cylinder (6) is articulated in respectively B point and C point with pivoting support (1) and swing arm (2), and described swing arm (2) is built in pivoting support (1); Described dipper body (31) is articulated in the D point with swing arm (2), and hinged place dipper body (31) is built in swing arm (2); Be provided with bucket arm cylinder (7) between described swing arm (2) and the dipper body (31), described bucket arm cylinder (7) is articulated in respectively E point and F point with swing arm (2) and dipper body (31) respectively; Be provided with telescopic oil cylinder (8) between described dipper body (31) and the flexible dipper (32), along dipper body (31) length direction stretching motion, described telescopic oil cylinder (8) is articulated in the G point with dipper body (31) to flexible dipper (32) under the effect of telescopic oil cylinder (8); Described flexible dipper (32) is articulated in the H point with rocking bar (4), is provided with rotary ink tank (9) between described flexible dipper (32) and the rocking bar (4), and described rotary ink tank (9) is articulated in respectively I point and J point with flexible dipper (32) and rocking bar (4); Described flexible dipper (32) is articulated in the K point with Excavating bucket (5), is provided with connecting rod (10) between described rocking bar (4) and the Excavating bucket (5), and described connecting rod (10) is articulated in respectively L point and M point with rocking bar (4) and Excavating bucket (5).
2. the telescopic excacation device of loader-digger as claimed in claim 1, it is characterized in that: the some position of described each pin joint relation is as follows: make that datum length is 1, JL=1 then, 4.1<AB<4.3,9<AE<9.1,14.8<AC<15,19.8<AD<20,12.4<DE<12.6,1.6<FG<1.7,3.7<DF<3.85,4.3<DG<4.4,11.8<HI<12,3<JH<3.2,3<LM<3.12,2.7<MK<2.8,2.1<HK<2.2,3.1<HL<3.2, I point to the distance at telescopic oil cylinder (8) center is between 1.1 to 1.25, the BC collapsing length is between 10.5 to 19, the EF collapsing length is between 9.5 to 16, and telescopic oil cylinder (8) collapsing length is between 8.5 to 15, and the IJ collapsing length is between 13 to 22.5.
3. the telescopic excacation device of loader-digger as claimed in claim 2 is characterized in that: the some position relation of described each pin joint is as follows: make that datum length is 1, then JL=1, AB=4.2, AE=9.06, AC=14.88, AD=19.82, DE=12.53, FG=1.64, DF=3.79, DG=4.35, HI=11.9, JH=3.1, LM=3.09, MK=2.75, HK=2.17, HL=3.17, I point to the distance at telescopic oil cylinder (8) center is 1.19, the BC collapsing length is between 10.83 to 18.74, the EF collapsing length is between 9.52 to 15.83, and telescopic oil cylinder (8) collapsing length is between 8.9 to 14.52, and the IJ collapsing length is between 13.25 to 22.48.
CN2012104405262A 2012-11-07 2012-11-07 Telescopic excavation end working device for backhoe loader CN102900104A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103726536A (en) * 2014-01-10 2014-04-16 徐工集团工程机械股份有限公司道路机械分公司 Four-support-leg walking type excavator
CN104831765A (en) * 2015-05-28 2015-08-12 南宁远卓新能源科技有限公司 Excavator with arc arm
CN105133679A (en) * 2015-08-03 2015-12-09 广西大学 Bucket rod telescopic excavating mechanism capable of expanding excavation depth through control of crank sliding block
CN105231951A (en) * 2015-10-23 2016-01-13 上海普英特高层设备有限公司 Ultra-large type window-cleaning equipment having retractable folding arm

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006283352A (en) * 2005-03-31 2006-10-19 Hitachi Constr Mach Co Ltd Working device for construction machine
CN201826338U (en) * 2010-06-29 2011-05-11 常林股份有限公司 Telescopic-arm excavating device for excavating loader
CN201843154U (en) * 2010-10-27 2011-05-25 陕西奥力信工程机械有限公司 Oil-electricity mixed wheel-type semi-rotary excavator
CN202865883U (en) * 2012-11-07 2013-04-10 江苏柳工机械有限公司 Retractable evacuating device for loader-digger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006283352A (en) * 2005-03-31 2006-10-19 Hitachi Constr Mach Co Ltd Working device for construction machine
CN201826338U (en) * 2010-06-29 2011-05-11 常林股份有限公司 Telescopic-arm excavating device for excavating loader
CN201843154U (en) * 2010-10-27 2011-05-25 陕西奥力信工程机械有限公司 Oil-electricity mixed wheel-type semi-rotary excavator
CN202865883U (en) * 2012-11-07 2013-04-10 江苏柳工机械有限公司 Retractable evacuating device for loader-digger

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103726536A (en) * 2014-01-10 2014-04-16 徐工集团工程机械股份有限公司道路机械分公司 Four-support-leg walking type excavator
CN103726536B (en) * 2014-01-10 2016-04-06 徐工集团工程机械股份有限公司道路机械分公司 A kind of four supporting leg walking type excavators
CN104831765A (en) * 2015-05-28 2015-08-12 南宁远卓新能源科技有限公司 Excavator with arc arm
CN104831765B (en) * 2015-05-28 2017-07-28 南宁远卓新能源科技有限公司 A kind of excavator with arc arm
CN105133679A (en) * 2015-08-03 2015-12-09 广西大学 Bucket rod telescopic excavating mechanism capable of expanding excavation depth through control of crank sliding block
CN105231951A (en) * 2015-10-23 2016-01-13 上海普英特高层设备有限公司 Ultra-large type window-cleaning equipment having retractable folding arm
CN105231951B (en) * 2015-10-23 2018-05-04 上海普英特高层设备股份有限公司 The telescopic ultra-large type window cleaning equipment of folding arm

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Application publication date: 20130130