CN207063016U - A kind of three joint arms - Google Patents
A kind of three joint arms Download PDFInfo
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- CN207063016U CN207063016U CN201720877633.XU CN201720877633U CN207063016U CN 207063016 U CN207063016 U CN 207063016U CN 201720877633 U CN201720877633 U CN 201720877633U CN 207063016 U CN207063016 U CN 207063016U
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- arm
- intermediate arm
- dipper
- articulated
- plate
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Abstract
The utility model discloses a kind of three joint arms, including swing arm, intermediate arm and dipper, and boom cylinder, the intermediate arm oil cylinder of driving intermediate arm action, the bucket arm cylinder of driving dipper action and the annex oil cylinder for driving the annex for shoveling, filling or grab to act that driving swing arm acts, the both ends of swing arm, intermediate arm and dipper are respectively narrow end and wide end, the narrow end of swing arm is articulated with body, the narrow end of dipper is articulated with annex, the narrow end of intermediate arm is articulated with the wide end of dipper, and the wide end of intermediate arm is articulated with the wide end of swing arm；Using three joint arms towards ground one side to be following, relative one side is above, and boom cylinder is articulated with below swing arm, and bucket arm cylinder is articulated with above intermediate arm, and intermediate arm oil cylinder is articulated with below intermediate arm, and annex oil cylinder is articulated with above dipper.By the way that the wide end of swing arm and the wide end of intermediate arm be hinged, the wide end of the narrow end of intermediate arm and dipper is hinged, increase the rigidity and stability of this three joint arms.
Description
Technical field
Building engineering field is the utility model is related to, more specifically to a kind of three joint arms.
Background technology
Traditional excavation charging crane, including driving car, two joint arms and scraper bowl, two joint arms include swing arm and dipper, swing arm
Both ends are cut with scissors loaded on driving car and dipper respectively, and scraper bowl hinge is loaded on dipper, drive and the dynamic of driving swing arm action is hinged with car
Arm oil cylinder, the bucket arm cylinder of driving dipper action is hinged with swing arm, the bucket cylinder of driving dipper motion is hinged with dipper.
This excavates charging crane and there was only two joint arms, so as to cause the sliding scale of scraper bowl small, causes use range more narrow.
Based on this, three joint arms formula being designed regarding to the issue above and excavates charging crane, as Chinese patent is a kind of, " three joint arms are excavated
Charging crane ", Application No. " 2012201978003 ", as shown in figure 1, it includes driving car, swing arm 1 ' and dipper 2 ', swing arm and
Intermediate arm 3 ' is provided between dipper, the front end of swing arm 1 ' is hinged with the rear end section of intermediate arm 3 ', the rear end section of dipper 2 ' with
The front end of intermediate arm 3 ' is hinged；The bucket arm cylinder 21 ' of driving dipper action is hinged with intermediate arm 3 ', drive is hinged with swing arm 1 '
The intermediate arm oil cylinder 31 ' that dynamic intermediate arm 3 ' acts.Using said structure, it is narrow to solve two joint arms excavation charging crane use range
Problem, still, as a result of three joint arms formula, and three joint arms are only hinged successively respectively, so three joint arms excavate charging crane
Less stable, easily rock in operation.
Utility model content
The purpose of this utility model is to provide a kind of three joint arms, and it is operated flexibly, and excavation, handling scope are wide, and rigidity is strong, surely
It is qualitative good.
To reach above-mentioned purpose, solution of the present utility model is：
A kind of three joint arms, including swing arm, intermediate arm and dipper, and the boom cylinder of the driving swing arm action, driving
The bucket arm cylinder and drive attached for what is shoveled, fill or grab that intermediate arm oil cylinder, the driving dipper of the intermediate arm action act
The annex oil cylinder of part action, the both ends of the swing arm, the intermediate arm and the dipper be respectively narrow end and wide end, described to move
The narrow end of arm is articulated with body, and the narrow end of the dipper is articulated with the annex, and the narrow end of the intermediate arm is articulated with institute
State in the wide end of dipper, the wide end of the intermediate arm is articulated with the wide end of the swing arm；One side with three joint arms towards ground
To be following, relative one side is above, the boom cylinder is articulated with below the swing arm, and the bucket arm cylinder is articulated with institute
State above intermediate arm, the intermediate arm oil cylinder is articulated with below the intermediate arm, and the annex oil cylinder is articulated with the bucket
Above bar.
The both ends of the boom cylinder are corresponding respectively to be articulated with the body and in the wide end of the swing arm, the annex
The both ends of oil cylinder are corresponded to be articulated with the annex and the dipper respectively, and the both ends of the bucket arm cylinder correspond to respectively to be articulated with
In the wide end of the intermediate arm and in the wide end of the dipper, the both ends of the intermediate arm oil cylinder correspond to respectively is articulated with described move
In the wide end of arm and the intermediate arm.
Right-hand side during using operator positioned at driving in-house operation is the right side of three joint arms, and left-hand side is left side, in described
Between arm surrounded by epipleural, right plate, lower side panel and left plate, the left plate and the right plate are respectively provided with narrow end and width
End, the wide end of the wide end of the left plate and the right plate form the wide end of the intermediate arm, the narrow end of the left plate and
The narrow end of the right plate forms the narrow end of the intermediate arm, is provided with the wide end of the right plate and is connected with the left plate
Connecting pole, and the connecting pole is to having a spacing between the wide end end of the intermediate arm, the one end of the epipleural and
The one end of the lower side panel is connected respectively on the connecting pole, and the epipleural and the lower side panel are located in institute
State between left plate and the right plate.
Correspond between the left plate and the right plate between the epipleural and the lower side panel formed with upper
Cavity, and supply the intermediate arm oil cylinder corresponding to the formed below of the lower side panel between the left plate and the right plate
Part be positioned over interior lower channel.
Using the hinged place of the swing arm and the intermediate arm as the first pin joint, first pin joint is in the left side
Correspond to the close wide end of the left plate beyond the connecting pole, also, the left plate between plate and the right plate
Correspond between the right plate and oil pipe passage is formed between the connecting pole and first pin joint；From the intermediate arm
The oil pipe that oil cylinder is drawn, a part is in the lower channel, and another part passes through from the oil pipe passage, through the swing arm
It is connected to above on the body.
The lower side panel has upper hang plate, lower hang plate and a transverse slat, upper hang plate described in the transverse slat and described has a down dip
Swash plate links together, the upper hang plate and the junction of the transverse slat and the junction of the lower hang plate and the transverse slat
It is arc-shaped transition.
Be provided with two relative hole seats above the dipper, one end of the annex oil cylinder by bearing pin be movably hinged in
Between two hole seats.
The annex is that scraper bowl, the grab bucket of snatch material or snatch material grab folder.
After said structure, the utility model has the advantages that：Pass through the wide end of swing arm and the width of intermediate arm
Hold the wide end of the be hinged, narrow end of intermediate arm and dipper to be hinged, increase the rigidity and stability of this three joint arms；Also, pass through installing
Intermediate arm oil cylinder adjusts the angle between intermediate arm and swing arm, because intermediate arm oil cylinder is in below intermediate arm, compared to existing
There is the intermediate arm oil cylinder being installed in above, the scope of angle adjustment is bigger between intermediate arm and swing arm of the present utility model.
Further, because the major part of intermediate arm oil cylinder is hidden in lower channel, the volume of three joint arms is reduced, and
Because a part for oil pipe is in lower channel, another part passes through the oil pipe passage, through entering body above swing arm
Relevant position, when three joint arms act oil pipe can be avoided mutually to be collided with three joint arms.
Further, by the setting of lower side panel, intermediate arm is separated into upper middle cavity and lower channel, due to lower side panel
Shape, improve the space availability ratio of lower channel；Also, due to the setting of upper middle cavity, filled out compared to existing by solid
Fill, this intermediate arm is light, intensity is also high.
Brief description of the drawings
Fig. 1 is the structural representation of prior art.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the utility model fragmentary, perspective view (oil pipe of display intermediate arm oil cylinder is laid).
In figure：
1 '-swing arm 2 '-dipper
21 '-bucket arm cylinder 3 '-intermediate arm
31 '-intermediate arm oil cylinder
1- swing arm 11- boom cylinders
2- intermediate arm 21- intermediate arm oil cylinders
Cavity on 22- epipleurals 23-
24- lower channel 3- dippers
31- bucket arm cylinder 32- hole seats
51- bucket cylinders the first pin joints of 61-
7- lower side panel 8- oil pipes
9- connecting poles
Embodiment
In order to which the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment
Row elaborates.
A kind of three joint arms, as Figure 2-3, three joint arms include swing arm 1, intermediate arm 2 and dipper 3, and between them according to
It is secondary be hinged.Wherein, the both ends of swing arm 1, intermediate arm 2 and dipper 3 are respectively narrow end and wide end.
For convenience of description, using three joint arms towards ground one side as three joint arms below, relative one side is three joint arms
Above, for right-hand side during using operator positioned at driving in-house operation as the right side of three joint arms, left-hand side is the left side of three joint arms.
By hinge in excavating on charging crane, the narrow end of dipper 3 is filled the narrow end of swing arm 1 by hinge in excavation
On the annex to unload the goods from the airplane, in the present embodiment, annex is scraper bowl, and swing arm 1, intermediate arm 2 and dipper 3 correspond to the wide end point of their own
Not formed with lower corner and upper corner, the narrow end of intermediate arm 2 is by hinge in the lower edge of dipper 3, the width of intermediate arm 2
The upper corner at end is by hinge in the upper edge of the wide end of swing arm 1.
Three joint arms also include the boom cylinder 11 that driving swing arm 1 acts, and the intermediate arm oil cylinder 21 of driving intermediate arm action, drive
The dipper beam hanger 31 and the scraper bowl beam hanger 51 of driving dipper motion that dynamic dipper 3 acts.Also, boom cylinder 11 is articulated with swing arm 1
Below, intermediate arm oil cylinder 21 is articulated with below intermediate arm 2, and dipper beam hanger 31 is articulated with above intermediate arm 2, bucket cylinder
51 are articulated with above dipper 3.
Specifically, the both ends of boom cylinder 11 are corresponded to by hinge on above-mentioned excavation charging crane and swing arm respectively
Below 1 wide end, the both ends of intermediate arm oil cylinder 21 are corresponded to by hinge in the lower edge and intermediate arm of swing arm 1 respectively
Below 2, the both ends of bucket arm cylinder 31 correspond to the upper edge by hinge above intermediate arm 2 with dipper 3 respectively,
The both ends of bucket cylinder 51 correspond to by hinge on dipper 3 and on scraper bowl respectively, are wherein equiped with two above dipper 3
Individual hole seat 32, and two hole seats 32 are oppositely arranged, one end of above-mentioned bucket cylinder 51 by hinge in two hole seats 32 it
Between.Wherein, the narrow end of dipper 3 offers axis hole, and this scraper bowl is by hinge on this axis hole, and the narrow end of dipper is close to axle
The sensing equipment of control dipper motion is equiped with hole, and this sensing equipment is equipment commonly used in the art.
Further, intermediate arm 2 is surrounded by epipleural 22, left plate, lower side panel 7 and right plate, left plate and right plate
Be respectively provided with narrow end and wide end, and the narrow end of left plate and the narrow end of right plate form the narrow end of intermediate arm 2, the wide end of left plate with
The wide end of right plate forms the wide end of intermediate arm 2, is provided with what is be connected with left plate in the usual way at the wide end of right plate
Connecting pole 9, lower side panel 7 are connected to the downside of connecting pole 9, one end of the epipleural 22 close to swing arm 1 close to the one end of swing arm 1
The upside of connecting pole 9 is connected to, also, epipleural 22 and lower side panel 7 are located between left plate and right plate.Wherein, even
Post 9 is connect to having spacing between the wide end portion of intermediate arm 2.Also, correspond to epipleural 22 between left plate and right plate with
Formed with upper middle cavity 23 between side plate 7, corresponding to the lower channel formed below of lower side panel 7 between left plate and right plate
24, one end of intermediate arm oil cylinder 21 is hinged in lower channel 24, and the other end is articulated with the lower edge of swing arm 1, makes intermediate arm oily
The major part of cylinder 21 is hidden in lower channel 24, this ensures that, the flexibility during action of intermediate arm oil cylinder 21, stability and just
Property.
Further, using the hinged place of swing arm 1 and intermediate arm 2 as the first pin joint 61, this first pin joint 61 is positioned at a left side
Correspond between side plate and right plate beyond connecting pole 9 close to the wide end of left plate.It is and right between left plate and right plate
Oil pipe passage should be formed between the pin joint of connecting pole 9 and first, a part for the oil pipe 8 drawn from intermediate arm oil cylinder 21 is under
The length direction of passage 24 is layed in lower channel 24, and another part passes through oil pipe passage, is layed in above swing arm 1, finally
Into the related device for excavating charging crane, so, when excavating charging crane work, oil pipe 8 is avoided to collide the part of three joint arms.
In addition, boom cylinder 11, bucket arm cylinder 31 and bucket cylinder 51 lay oil pipes in the usual way.
In the present embodiment, left plate and right plate are in triangular shape.
Preferably, lower side panel 7 has upper hang plate, lower hang plate and transverse slat, and the both ends of this transverse slat are connected respectively
Hang plate and lower hang plate, and above-mentioned lower side panel 7 is close to the one end as above end of hang plate, and updip of swing arm 1
The junction of swash plate and transverse slat is arc-shaped transition, and the junction of lower hang plate and transverse slat is also arc-shaped transition.Pass through lower side panel 7
Shape, lower channel 24 is more convenient in intermediate arm oil cylinder 21 is positioned over, improve space occupancy rate, and reduce this three joint arms
Volume；It is additionally, since in intermediate arm 2 formed with upper middle cavity 23, therefore intermediate arm 2 is light, and intensity is strong.
It is be hinged by the way of the bearing pin and mounting hole of routine between each part in the utility model.
In the utility model, this three joint arms can also be used in materials-taking machine, and this annex can also be snatch material
Grab bucket or grab folder etc..
It the foregoing is only the preferred embodiment of the present embodiment, all equalizations done with the utility model claims scope
Change and modification, all should belong to right of the present utility model.
Claims (8)
1. a kind of three joint arms, including swing arm, intermediate arm and dipper, and the boom cylinder of the driving swing arm action, driving institute
State the intermediate arm oil cylinder of intermediate arm action, the bucket arm cylinder of the driving dipper action and drive the annex for shoveling, filling or grab
The annex oil cylinder of action, it is characterised in that：The both ends of the swing arm, the intermediate arm and the dipper are respectively narrow end and width
End, the narrow end of the swing arm are articulated with body, and the narrow end of the dipper is articulated with the annex, the narrow end of the intermediate arm
It is articulated with the wide end of the dipper, the wide end of the intermediate arm is articulated with the wide end of the swing arm；With three joint arms direction ground
The one side in face is following, relative one side for above, the boom cylinder is articulated with below the swing arm, the bucket arm cylinder
It is articulated with above the intermediate arm, the intermediate arm oil cylinder is articulated with below the intermediate arm, and the annex oil cylinder is hinged
Above the dipper.
A kind of 2. three joint arms according to claim 1, it is characterised in that：The both ends of the boom cylinder correspond to be hinged respectively
In on the body and in the wide end of the swing arm, the both ends of the annex oil cylinder correspond to respectively is articulated with the annex and described
On dipper, the both ends of the bucket arm cylinder are corresponding respectively to be articulated with the wide end of the intermediate arm and in the wide end of the dipper,
The both ends of the intermediate arm oil cylinder correspond to be articulated with the wide end and the intermediate arm of the swing arm respectively.
A kind of 3. three joint arms according to claim 1 or 2, it is characterised in that：During with operator positioned at driving in-house operation
Right-hand side be three joint arms right side, left-hand side is left side, and the intermediate arm is by epipleural, right plate, lower side panel and left plate
Surround, the left plate is respectively provided with the width of narrow end and wide end, the wide end of the left plate and the right plate with the right plate
End forms the wide end of the intermediate arm, and the narrow end of the narrow end of the left plate and the right plate forms the narrow of the intermediate arm
End, is provided with the connecting pole being connected with the left plate in the wide end of the right plate, and the connecting pole is to the intermediate arm
Wide end end between there is spacing, the one end of the one end of the epipleural and the lower side panel is connected respectively in institute
State on connecting pole, the epipleural and the lower side panel are located between the left plate and the right plate.
A kind of 4. three joint arms according to claim 3, it is characterised in that：It is corresponding between the left plate and the right plate
Formed with upper middle cavity between the epipleural and the lower side panel, and correspond between the left plate and the right plate
The part formed below for the intermediate arm oil cylinder of the lower side panel is positioned over interior lower channel.
A kind of 5. three joint arms according to claim 4, it is characterised in that：With the hinged place of the swing arm and the intermediate arm
For the first pin joint, first pin joint, which is between the left plate and the right plate, to be corresponded to beyond the connecting pole
Correspond to the connecting pole and described close to the wide end of the left plate, also, between the left plate and the right plate
Oil pipe passage is formed between first pin joint；The oil pipe drawn from the intermediate arm oil cylinder, a part are in the lower channel,
Another part passes through from the oil pipe passage, through being connected to above the swing arm on the body.
A kind of 6. three joint arms according to claim 3, it is characterised in that：The lower side panel has upper hang plate, lower inclination
Plate and transverse slat, upper hang plate and the lower hang plate link together described in the transverse slat, the upper hang plate and the transverse slat
Junction and the junction of the lower hang plate and the transverse slat be arc-shaped transition.
A kind of 7. three joint arms according to claim 1, it is characterised in that：Two relative holes are provided with above the dipper
Seat, one end of the annex oil cylinder is movably hinged between two hole seats by bearing pin.
A kind of 8. three joint arms according to claim 1 or 2, it is characterised in that：The annex is scraper bowl, snatch material
Grab bucket or snatch material grab folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720877633.XU CN207063016U (en) | 2017-07-19 | 2017-07-19 | A kind of three joint arms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720877633.XU CN207063016U (en) | 2017-07-19 | 2017-07-19 | A kind of three joint arms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207063016U true CN207063016U (en) | 2018-03-02 |
Family
ID=61510887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720877633.XU Active CN207063016U (en) | 2017-07-19 | 2017-07-19 | A kind of three joint arms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207063016U (en) |
-
2017
- 2017-07-19 CN CN201720877633.XU patent/CN207063016U/en active Active
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