CN205557617U - Hydraulic shovel's forearm structure - Google Patents
Hydraulic shovel's forearm structure Download PDFInfo
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- CN205557617U CN205557617U CN201620294994.7U CN201620294994U CN205557617U CN 205557617 U CN205557617 U CN 205557617U CN 201620294994 U CN201620294994 U CN 201620294994U CN 205557617 U CN205557617 U CN 205557617U
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Abstract
The utility model provides a hydraulic shovel's forearm structure, including the first arm body and the second arm body, the above -mentioned the first arm body and the second arm body all are strip hollow structure, it is external that above -mentioned second arm is physically located with the mode movable sleeve that slides along second arm axial direction physically to above -mentioned the first arm, and the first end tip of the axial of the above -mentioned second arm body is in outside the first end tip of axial of the first arm body, be equipped with the big arm connection structure who supplies the big arm erection joint of excavator on the first end tip of axial of the above -mentioned second arm body, be equipped with the bucket connection structure of the bucket erection joint of confession excavator on the axial second end tip of the above -mentioned the first arm body, the internal hydraulic cylinder who installs the control the first arm and personally experience sth. Part of the body and slide of above -mentioned second arm. Compared with the prior art, it can make whole length stretch out and draw back and adjust so that the bucket of excavator can be to the operation area operation, the digging action in the narrow space of specially adapted, and gathering range is wide, nimble to it is simple and easy to have overall structure, assembles conveniently easy to maintain's advantage.
Description
Technical field
This utility model relates to hydraulic construction machine field, particularly to a kind of forearm being arranged on hydraulic crawler excavator.
Background technology
Hydraulic crawler excavator is a kind of multi-functional mechanical, it is widely used in hydraulic engineering at present, transportation, in the mechanical execution such as power engineering and mine excavation, it is alleviating heavy physical work, ensureing construction quality, Accelerating The Construction speed and aspect of raising labour productivity play a very important role；Then hydraulic crawler excavator has multi-functional, the feature such as high-quality and high efficiency.Therefore, hydraulic crawler excavator receives the favor of vast construction operation unit.
Hydraulic crawler excavator generallys include walking mechanism, OPS, large arm, forearm and bucket, wherein one end of forearm is connected with large arm, and it is in the lower section of large arm, setting in a certain angle with large arm, bucket is movably articulated on the other end of forearm, during digging operation, walking mechanism stops walking, and the telescopic adjustment passing through large arm can realize bucket and the different parts of walking mechanism periphery is carried out digging action；Use flexibly, convenient.
But, it is known that, the monnolithic case volume of hydraulic crawler excavator is bigger, typically hydraulic crawler excavator is rested on outside narrow space when digging operation is carried out for narrow space, then realize operation, then in stretching into narrow space by large arm; the length of forearm is changeless; the operation height making bucket is limited, so that the bucket of hydraulic crawler excavator has certain limitation in narrow space during operation, even cannot operation.
In view of this, the problems referred to above are furtherd investigate by the present inventor, are then produced by this case.
Utility model content
The purpose of this utility model is to provide the forearm structure of a kind of hydraulic crawler excavator, it is capable of the regulation of entire length, enabling excavator-type shovel clamshell excavator that the operating area of differing heights is carried out operation, job area is wide, makes hydraulic crawler excavator be applicable to the digging action of narrow space.
This utility model be employed technical scheme comprise that such: the forearm structure of a kind of hydraulic crawler excavator, including the first arm body and the second arm body, above-mentioned first arm body and the second arm body are all in strip hollow structure, it is external that above-mentioned first arm body is movably set in above-mentioned second arm in the way of the axial direction along the second arm body slides, and the axial first end end of above-mentioned second arm body is in outside the axial first end end of the first arm body, the axial first end end of above-mentioned second arm body is provided with installs, for big arm of digger, the large arm attachment structure connected, the axial second end end of above-mentioned first arm body is provided with installs, for excavator bucket, the bucket attachment structure connected, it is provided with in above-mentioned second arm body and controls the hydraulic jack that the first arm body slides.
The cylinder body of above-mentioned hydraulic jack is fixed in axial first end of above-mentioned second arm body, the piston rod free end end of above-mentioned hydraulic jack is stretched in the first arm body, and extend in axial second end of the first arm body, being convexly equipped with piston mounting blocks in axial second end of above-mentioned first arm body, the piston rod free end end of above-mentioned hydraulic jack links together with above-mentioned piston mounting blocks.
The upper projection that the inside top surface wall with above-mentioned first arm body contacts it is convexly equipped with, the bar shaped projection that above-mentioned upper projection extends in the length direction along the second arm body on the end face lateral wall of above-mentioned second arm body；The lower convexity that on the inside bottom surface wall of above-mentioned first arm body, the convex outer side bottom surface wall being provided with above-mentioned second arm body contacts, the bar shaped projection that above-mentioned lower convexity extends in the length direction along the first arm body.
Above-mentioned upper projection is provided with two, and on two, the protruding width along the second arm body is spaced and arranges, and above-mentioned lower convexity is provided with two, and two lower convexity are spaced setting along the width of the first arm body.
Axial first medial wall, end end two of above-mentioned first arm body be mounted on the first ball that the lateral wall of several its partial portions and the second arm body contacts at two up and down, axial second lateral wall, end end two of above-mentioned second arm body be mounted on the second ball that the medial wall of several its partial portions and the first arm body contacts at two up and down.
After using technique scheme, the forearm structure of a kind of hydraulic crawler excavator of the present utility model, utilize large arm attachment structure and bucket attachment structure to make the second arm body of forearm be connected with the large arm of excavator during installation, the first arm body is connected with excavator bucket；During use, if excavator bucket cannot touch operating area, start hydraulic jack, the piston rod of hydraulic jack stretches out, stretching out of hydraulic cylinder piston rod promotes the first arm body to slide along the direction of the second arm body dorsad, sliding of first arm body makes the total length of the first arm body and the second arm body extend, the i.e. entire length of forearm is elongated, and then enable excavator bucket to operating area operation, and then make excavator be applicable to the digging action of narrow space, use region is wide, and carry out adapting to regulation according to different operating areas when enabling excavator-type shovel clamshell excavator operation by the collapsing length of hydraulic jack, job area is wide, operating flexibility, and it is simple to have overall structure, easy to assembly, the advantage being easily maintained.
Accompanying drawing explanation
Fig. 1 is axonometric chart of the present utility model；
Fig. 2 is the axonometric chart of another angle of this utility model；
Fig. 3 is contraction state schematic diagram of the present utility model；
Fig. 4 is deployed condition schematic diagram of the present utility model.
In figure:
First arm body 1 bucket attachment structure 11
Piston mounting blocks 12 lower convexity 13
Second arm body 2 large arm attachment structure 21
Upper protruding 22 hydraulic jacks 3
Cylinder body 31 piston rod 32
First ball 4 second ball 5
Detailed description of the invention
nullThe forearm structure of a kind of hydraulic crawler excavator of the present utility model，As Figure 1-4，Including the first arm body 1 and the second arm body 2，First arm body 1 and the second arm body 2 are all in strip hollow structure，First arm body 1 is movably set in outside the second arm body 2 in the way of the length direction along the second arm body 2 slides，And second the axial first end end of arm body 2 be in outside the axial first end end of the first arm body 1，The axial first end end of the second arm body 2 is provided with installs, for big arm of digger, the large arm attachment structure 21 connected，This large arm attachment structure 21 is the connection sheet of the width relative spacing setting along the second arm body 2，Symmetrical installing hole is offered on two connection sheets，The end of big arm of digger is stretched between two connection sheets，And cooperating together by bolts and nuts，The axial second end end of the first described arm body 1 is provided with installs, for excavator bucket, the bucket attachment structure 11 connected，This bucket attachment structure 11 and large arm attachment structure 21 are known features，Tire out the most one by one at this and state.
It is provided with in the second described arm body 2 and controls the hydraulic jack 3 that the first arm body 1 slides；Preferably: the cylinder body 31 of this hydraulic jack 3 is fixed in axial first end of the second arm body 2, and the oil-in of cylinder body 31 stretches out outside the second arm body 2, the piston rod 32 free end end of hydraulic jack 3 is stretched in the first arm body 1, and extend in axial second end of the first arm body 1, being convexly equipped with piston mounting blocks 12 in axial second end of the first arm body 1, the piston rod 32 free end end of hydraulic jack 3 links together with piston mounting blocks 12.
The forearm structure of a kind of hydraulic crawler excavator of the present utility model, utilizes large arm attachment structure 21 and bucket attachment structure 11 to make the second arm body 2 of forearm be connected with the large arm of excavator during installation, the first arm body 1 is connected with excavator bucket；During use, if excavator bucket cannot touch operating area, start hydraulic jack 3, the piston rod 32 of hydraulic jack 3 stretches out, stretching out of hydraulic jack 3 piston rod 32 promotes the first arm body 1 to slide along the length direction of the second arm body 2 dorsad, sliding of first arm body 1 makes the total length of the first arm body 1 and the second arm body 2 extend, the i.e. entire length of forearm is elongated, and then enable excavator bucket to operating area operation, and then make excavator be applicable to the digging action of narrow space, use region is wide, and carry out adapting to regulation according to different operating areas when enabling excavator-type shovel clamshell excavator operation by the collapsing length of hydraulic jack, job area is wide, operating flexibility, and it is simple to have overall structure, easy to assembly, the advantage being easily maintained.
Of the present utility model another the most preferably: the end face lateral wall of the second arm body 2 is convexly equipped with upper protruding 22 that the inside top surface wall with the first arm body 1 contacts, the upper protruding 22 bar shaped projections extended in the length direction along the second arm body 2, upper protruding 22 most preferably arrange two, and on two, projection 22 is spaced setting along the width of the second arm body 2；The lower convexity 13 that the convex outer side bottom surface wall being provided with the second arm body 2 of the inside bottom surface wall of the first arm body 1 contacts, the bar shaped projection that lower convexity 13 extends in the length direction along the first arm body 1, lower convexity 13 is most preferably provided with two, and two lower convexity 13 are spaced setting along the width of the first arm body 1；So, by upper protruding 22 with lower convexity 13 make the first arm body 1 and the second arm body 2 to touch area less, reduce the first arm body 1 and relative wear of the second arm body 2, the contact area avoiding the first arm body 1 and the second arm body 2 causes greatly the first arm body 1 and the second arm body 2 relative wear big, and the problem causing forearm bulk strength step-down.In this utility model, it is mounted on, at upper and lower two of axial first medial wall, end end two of first arm body 1, the first ball 4 that the lateral wall of several its partial portions and the second arm body 2 contacts, each first ball 4 at each region is arranged in arrays, being mounted on, on upper and lower two of axial second lateral wall, end end two of second arm body 2, the second ball 5 that the medial wall of several its partial portions and the first arm body 1 contacts, each second ball 5 at each region is arranged in arrays；So, the first ball 4 and the second ball 5 by each region make the first arm body 1 remain straight-line travelling when sliding, and guide effect is played in the slip to the first arm body 1.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, suitably change that it is done by any person of an ordinary skill in the technical field or modify, all should be regarded as without departing from patent category of the present utility model.
Claims (5)
1. the forearm structure of a hydraulic crawler excavator, it is characterised in that: include the first arm body and the second arm
Body, above-mentioned first arm body and the second arm body are all in strip hollow structure, and above-mentioned first arm body is with along second
It is external that the mode that the axial direction of arm body slides is movably set in above-mentioned second arm, and above-mentioned second arm body
Axial first end end be in outside the axial first end end of the first arm body, the axle of above-mentioned second arm body
It is provided with to the first end end, for big arm of digger, the large arm attachment structure connected, above-mentioned first arm is installed
The axial second end end of body is provided with installs, for excavator bucket, the bucket attachment structure connected, on
It is provided with in stating the second arm body and controls the hydraulic jack that the first arm body slides.
The forearm structure of a kind of hydraulic crawler excavator the most according to claim 1, it is characterised in that:
The cylinder body of above-mentioned hydraulic jack is fixed in axial first end of above-mentioned second arm body, above-mentioned hydraulic jack
Piston rod free end end stretch in the first arm body, and extend in axial second end of the first arm body,
It is convexly equipped with piston mounting blocks, the piston rod of above-mentioned hydraulic jack in axial second end of above-mentioned first arm body
Free end end links together with above-mentioned piston mounting blocks.
The forearm structure of a kind of hydraulic crawler excavator the most according to claim 1, it is characterised in that:
It is convexly equipped with the inside top surface wall with above-mentioned first arm body on the end face lateral wall of above-mentioned second arm body to contact
Upper projection, above-mentioned upper projection in along the second arm body length direction extend bar shaped projection；Above-mentioned
On the inside bottom surface wall of one arm body, the convex outer side bottom surface wall being provided with above-mentioned second arm body contacts
Lower convexity, the bar shaped projection that above-mentioned lower convexity extends in the length direction along the first arm body.
The forearm structure of a kind of hydraulic crawler excavator the most according to claim 3, it is characterised in that:
Above-mentioned upper projection is provided with two, and on two, the protruding width along the second arm body is spaced and arranges, above-mentioned
Lower convexity is provided with two, and two lower convexity are spaced setting along the width of the first arm body.
The forearm structure of a kind of hydraulic crawler excavator the most according to claim 1, it is characterised in that:
Axial first medial wall, end end two of above-mentioned first arm body be mounted on several its portions at two up and down
The first ball that the lateral wall of Divisional and the second arm body contacts, above-mentioned second axial second end of arm body
Lateral wall, end two be mounted on several its partial portions and the inner side of the first arm body at two up and down
The second ball that wall contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620294994.7U CN205557617U (en) | 2016-04-11 | 2016-04-11 | Hydraulic shovel's forearm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620294994.7U CN205557617U (en) | 2016-04-11 | 2016-04-11 | Hydraulic shovel's forearm structure |
Publications (1)
| Publication Number | Publication Date |
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| CN205557617U true CN205557617U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620294994.7U Active CN205557617U (en) | 2016-04-11 | 2016-04-11 | Hydraulic shovel's forearm structure |
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| CN (1) | CN205557617U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026027A (en) * | 2018-09-19 | 2018-12-18 | 四川省创力隧道机械设备有限公司 | Three-level telescopic arm tunneling machine |
| CN109440855A (en) * | 2018-10-30 | 2019-03-08 | 柳州柳工挖掘机有限公司 | A kind of excavator working efficiency detection method and system |
-
2016
- 2016-04-11 CN CN201620294994.7U patent/CN205557617U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026027A (en) * | 2018-09-19 | 2018-12-18 | 四川省创力隧道机械设备有限公司 | Three-level telescopic arm tunneling machine |
| CN109440855A (en) * | 2018-10-30 | 2019-03-08 | 柳州柳工挖掘机有限公司 | A kind of excavator working efficiency detection method and system |
| CN109440855B (en) * | 2018-10-30 | 2020-11-20 | 柳州柳工挖掘机有限公司 | Excavator working efficiency detection method and system |
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