CN106400869B - It is a kind of can be to the excavator that side coil is excavated - Google Patents

It is a kind of can be to the excavator that side coil is excavated Download PDF

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Publication number
CN106400869B
CN106400869B CN201610829898.2A CN201610829898A CN106400869B CN 106400869 B CN106400869 B CN 106400869B CN 201610829898 A CN201610829898 A CN 201610829898A CN 106400869 B CN106400869 B CN 106400869B
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China
Prior art keywords
revolute pair
telescopic rod
forearm
scraper bowl
arm
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CN201610829898.2A
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Chinese (zh)
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CN106400869A (en
Inventor
莫善奎
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Guangxi University
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Guangxi University
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Priority to CN201610829898.2A priority Critical patent/CN106400869B/en
Publication of CN106400869A publication Critical patent/CN106400869A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/34Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36Component parts
    • E02F3/38Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms

Abstract

It can be to the excavator that side coil is excavated, large arm one end is connected on pedestal, the large arm other end is connect with middle arm one end, the middle arm other end is connect with rear forearm one end, the forearm other end is connect with preceding forearm one end afterwards, the preceding forearm other end is connected on scraper bowl, the Plane of rotation of revolute pair three is vertical with the Plane of rotation of revolute pair one, the Plane of rotation of revolute pair five is vertical with the Plane of rotation of revolute pair four, the pedestal is equipped with the groove of vertical direction, bottom portion of groove is equipped with jack, it supports on the jack of stake installation in a groove, second telescopic rod one end is connected in support stake, the second telescopic rod other end is connected in large arm.Required movement when loading easy to accomplish of the invention, control is simple, and maintenance is convenient, energy saving, and rigidity is high, bearing capacity is strong, error accumulation is small, and movement inertia is small, and dynamic performance is good.

Description

It is a kind of can be to the excavator that side coil is excavated
Technical field
The present invention relates to machinery field, it is specifically a kind of can be to the excavator that side coil is excavated.
Background technique
Excavator, also known as excavating machinery are to be excavated to be higher or lower than the material for holding machine side with scraper bowl, and be packed into haulage vehicle Or it unloads to the earthmoving machinery of rickyard.The material that excavator excavates is mainly soil, coal, silt and the soil after pre- pine And rock.From the point of view of the development of engineering machinery in recent years, the development of excavator is relatively fast, and excavator has become engineering construction In one of most important engineering machinery.Divide according to scraper bowl, excavator can be divided into forward shovel, backacter, drawing again Shovel excavator and clam shell excavator.Forward shovel is chiefly used in excavating the material of earth's surface or more, and backacter is chiefly used in excavating Earth's surface material below.It is most common that backacter backhoe type is that we met, and backward downwards, soil is cut in pressure, can be used for Shut down work surface excavation below, elemental operation mode has: ditch end is excavated, ditch side is excavated, straight line excavates, curve excavates, is kept Certain angle excavation, super deep trench excavation and the excavation of ditch slope etc..The shovel soil action form of forward shovel, its main feature is that " advance to On, soil is cut in pressure ".Crowd shovel digging force is big, can excavate the soil in shutdown face or more, is preferably used for the drying base that excavation height is greater than 2m Hole, but must setting up and down ramp.The bucket of crowd shovel is larger than the bucket of the excavator of the backhoe of same equivalent, can excavate water content One no more than 27% is native to three classes, and completes entire excavation hauling operation with dump truck cooperation, and it is dry can also to excavate large size Dry foundation pit and mound etc..The digging mode of face shovel is dug according to the difference for the relative position for excavating route and haulage vehicle Soil and the mode for unloading soil have following two: forward direction is cut the earth, and soil is laterally unloaded;Forward direction is cut the earth, and soil is reversely unloaded.
According to above-mentioned classification, present excavator is all one of mentioned kind, when construction site needs crowd shovel to excavate A forward shovel must be looked for when machine, a backacter must be looked for when construction site needs backacter, when need When being used alternatingly, it is necessary to which two different excavators are constructed, this is because the unicity of excavator function makes Construction cost increases, and the service efficiency of separate unit excavator is lower, and the rotation of big arm of digger, forearm and scraper bowl at present is all In the same plane, front can only be excavated, spatial degrees of freedom is lower.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides one kind can be to the excavator that side coil is excavated.
To achieve the goals above, the invention adopts the following technical scheme:
It can be to the excavator that side coil is excavated, including pedestal, large arm, middle arm, rear forearm, preceding forearm, scraper bowl, second Telescopic rod, support stake, jack, third telescopic rod, the 4th telescopic rod, support frame, sliding sleeve, the first telescopic rod, scraper bowl pull rod with And scraper bowl strut,
Large arm one end is connected on pedestal by revolute pair one, and the large arm other end is connected by revolute pair three and middle arm one end It connects, the middle arm other end is connect by revolute pair four with rear forearm one end, and the rear forearm other end passes through revolute pair five and preceding forearm one End connection, the preceding forearm other end are connected on scraper bowl by revolute pair six, the Plane of rotation of revolute pair three and the rotation of revolute pair one Turning that plane is vertical, the Plane of rotation of revolute pair five is vertical with the Plane of rotation of revolute pair four,
The pedestal is equipped with the groove of vertical direction, and bottom portion of groove is equipped with jack, and support stake is installed in a groove On jack, second telescopic rod one end is connected in support stake by revolute pair seven, and the second telescopic rod other end passes through revolute pair Eight are connected in large arm,
Before being connected to by revolute pair 13 on middle arm, the third telescopic rod other end passes through revolute pair for third telescopic rod one end 14 are connected on rear forearm, and the 4th telescopic rod one end is connected on the support frame, before support frame is fixed on by revolute pair 15 On middle arm, the 4th telescopic rod other end is connected on sliding sleeve by revolute pair 16, and sliding sleeve is sleeved on third telescopic rod,
Before first telescopic rod one end is connected to by revolute pair 17 on forearm, the first telescopic rod other end passes through revolute pair 18 connect with scraper bowl pull rod one end, and the scraper bowl pull rod other end is connected on scraper bowl by revolute pair 19, scraper bowl strut one end Before being connected to by revolute pair 20 on forearm, the scraper bowl strut other end is drawn by revolute pair 18 and the first telescopic rod and scraper bowl Bar connects simultaneously.
Compared with prior art, the present invention have the utility model has the advantages that
Forearm of the invention is made of rear forearm and preceding forearm, and the two is connected by revolute pair five, and rotary motion pair five can To change the direction of scraper bowl, crowd shovel is become by backhoe;Middle arm is made of rear middle arm and preceding middle arm, and the two passes through revolute pair revolute pair Three connections, the side that forearm can be moved to large arm by rotary motion pair three is excavated.First telescopic rod is for adjusting forearm The angle between middle arm, when forearm and middle arm form straight line, i.e. the dead-centre position that is in of forearm and middle arm, using the Two telescopic rods apply thrust to the first telescopic rod and forearm are rotated to the top of middle arm, or applying pulling force is during forearm returns The lower section of arm.Required movement when loading easy to accomplish of the invention, control is simple, and maintenance is convenient, energy saving, rigidity Height, bearing capacity is strong, error accumulation is small, and movement inertia is small, and dynamic performance is good.
Detailed description of the invention
Fig. 1 be it is of the present invention can be to the structural schematic diagram for the excavator that side coil is excavated.
Fig. 2 be it is of the present invention can the first telescopic rod and the second telescopic rod to the excavator that side coil is excavated dress With stereoscopic schematic diagram.
Fig. 3 be it is of the present invention can rear forearm, middle arm and third telescopic rod to the excavator that side coil is excavated Assembling schematic diagram.
Specific embodiment
Technical solution of the present invention is further elaborated below by embodiment.
Embodiment 1
Including pedestal 21, large arm 1, middle arm 3, rear forearm 4, preceding forearm 5, scraper bowl 6, the second telescopic rod 7, support stake 8, very heavy Top 9, third telescopic rod 14, the 4th telescopic rod 15, support frame 16, sliding sleeve 17, the first telescopic rod 18, scraper bowl pull rod 19 and scraper bowl Strut 20,
1 one end of large arm is connected on pedestal 21 by revolute pair 1, and 1 other end of large arm is by revolute pair 3 103 in The connection of 3 one end of arm, middle 3 other end of arm are connect by revolute pair 4 104 with rear 4 one end of forearm, and rear 4 other end of forearm passes through rotation Pair 5 105 is connect with preceding 5 one end of forearm, and preceding 5 other end of forearm is connected on scraper bowl 6 by revolute pair 6 106, revolute pair three 103 Plane of rotation is vertical with the Plane of rotation of revolute pair 1, Plane of rotation and the revolute pair 4 104 of revolute pair 5 105 Plane of rotation is vertical,
The pedestal 21 is equipped with the groove of vertical direction, and bottom portion of groove is equipped with jack 9, and support stake 8 is mounted on groove In jack 9 on, 7 one end of the second telescopic rod by revolute pair 7 107 be connected to support stake 8 on, 7 other end of the second telescopic rod It is connected in large arm 1 by revolute pair 8 108,
For 14 one end of third telescopic rod before being connected to by revolute pair 13 on middle arm 3,14 other end of third telescopic rod is logical It crosses revolute pair 14 to be connected on rear forearm 4,15 one end of the 4th telescopic rod is connected to support frame by revolute pair 15 On 16, for support frame 16 before being fixed on middle arm 3,15 other end of the 4th telescopic rod is connected to sliding sleeve 17 by revolute pair 16 On, sliding sleeve 17 is sleeved on third telescopic rod 14,
Before first telescopic rod, 18 one end is connected to by revolute pair 17 on forearm 5,18 other end of the first telescopic rod is logical It crosses revolute pair 18 to connect with 19 one end of scraper bowl pull rod, 19 other end of scraper bowl pull rod is connected to shovel by revolute pair 19 On bucket 6, before 20 one end of scraper bowl strut is connected to by revolute pair 20 on forearm 5,20 other end of scraper bowl strut passes through rotation Pair 18 is connect simultaneously with the first telescopic rod 18 and scraper bowl pull rod 19.
Shown in Fig. 3, middle 3 front end of arm is the fork pockets shape of two teeth, and third telescopic rod 14 is mounted on fork pockets center, changes previous dig Pick machine telescopic rod is all mounted on the form above dipper, this is in order to enable rear forearm 4 can be moved to fork around revolute pair four The activity space of operation above or below slot, rear 4 fork pockets either above or below of forearm is symmetrical.
The present invention also by the big arm hydraulic cylinder 7 for controlling 1 angle of large arm be connected to can in movable support stake 8, this be for Large arm 1 is set with revolute pair 1 to be to be rotated in the range of the center of circle carries out 180 °, if without movable support stake 8, when large arm 1 is biased to the other side of support stake 2, the angle between big arm hydraulic cylinder 7 and pedestal 21 understands very little, big arm hydraulic cylinder The 7 angles also very littles formed with large arm 1, big arm hydraulic cylinder 7, pedestal 21 and the very big at an angle obtuse angle three of 1 shape of large arm Angular, big arm hydraulic cylinder 7 and large arm 1 are almost conllinear, and so big arm hydraulic cylinder 7 needs to bear huge pulling force, the stabilization of large arm 1 Property decline, can be good at solving the problems, such as this using movable support stake 8, when large arm 1 need be biased to support 8 other side of stake When, support stake 8 increases, and big arm hydraulic cylinder 7 is changed into pulling force by original pressure support and supports.Second telescopic rod can be specially Big arm hydraulic cylinder.

Claims (1)

1. can be to the excavator that side coil is excavated, which is characterized in that including pedestal, large arm, middle arm, rear forearm, preceding forearm, Scraper bowl, the second telescopic rod, support stake, jack, third telescopic rod, the 4th telescopic rod, support frame, sliding sleeve, the first telescopic rod, shovel Struggle against pull rod and scraper bowl strut,
Large arm one end is connected on pedestal by revolute pair one, and the large arm other end is connect by revolute pair three with middle arm one end, in The arm other end is connect by revolute pair four with rear forearm one end, and the rear forearm other end is connected by revolute pair five and preceding forearm one end It connects, the preceding forearm other end is connected on scraper bowl by revolute pair six, the Plane of rotation of revolute pair three and the rotary flat of revolute pair one Face is vertical, and the Plane of rotation of revolute pair five is vertical with the Plane of rotation of revolute pair four,
The pedestal is equipped with the groove of vertical direction, and bottom portion of groove is equipped with jack, support stake installation in a groove very heavy On top, second telescopic rod one end is connected in support stake by revolute pair seven, and the second telescopic rod other end is connected by revolute pair eight It connects in large arm,
Before being connected to by revolute pair 13 on middle arm, the third telescopic rod other end passes through revolute pair 14 for third telescopic rod one end It is connected on rear forearm, the 4th telescopic rod one end is connected on the support frame by revolute pair 15, support frame middle arm before being fixed on On, the 4th telescopic rod other end is connected on sliding sleeve by revolute pair 16, and sliding sleeve is sleeved on third telescopic rod,
Before first telescopic rod one end is connected to by revolute pair 17 on forearm, the first telescopic rod other end passes through revolute pair 18 It is connect with scraper bowl pull rod one end, the scraper bowl pull rod other end is connected on scraper bowl by revolute pair 19, and scraper bowl strut one end passes through Before revolute pair 20 is connected on forearm, the scraper bowl strut other end is same by revolute pair 18 and the first telescopic rod and scraper bowl pull rod When connect.
CN201610829898.2A 2016-09-18 2016-09-18 It is a kind of can be to the excavator that side coil is excavated Active CN106400869B (en)

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Application Number Priority Date Filing Date Title
CN201610829898.2A CN106400869B (en) 2016-09-18 2016-09-18 It is a kind of can be to the excavator that side coil is excavated

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Application Number Priority Date Filing Date Title
CN201610829898.2A CN106400869B (en) 2016-09-18 2016-09-18 It is a kind of can be to the excavator that side coil is excavated

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CN106400869B true CN106400869B (en) 2019-01-08

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CN113152547A (en) * 2021-03-09 2021-07-23 山东鲁桥建设有限公司 Rapid foundation pit excavation equipment and excavation method

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* Cited by examiner, † Cited by third party
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CN102720227B (en) * 2012-06-01 2014-12-24 燕山大学 Motion redundancy face shovel excavating mechanism containing lengthened arm
CN202706074U (en) * 2012-06-01 2013-01-30 燕山大学 Motion redundancy face-shovel excavation mechanism
CN104594400A (en) * 2014-12-25 2015-05-06 广西大学 Rotatable multiple-connecting-rod controllable excavating mechanism having metamorphic function
CN205134401U (en) * 2015-11-10 2016-04-06 覃煦 Multi freedom connecting rod formula pile up neatly arm

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