CN208618475U - Excavator telescopic boom - Google Patents
Excavator telescopic boom Download PDFInfo
- Publication number
- CN208618475U CN208618475U CN201821059917.9U CN201821059917U CN208618475U CN 208618475 U CN208618475 U CN 208618475U CN 201821059917 U CN201821059917 U CN 201821059917U CN 208618475 U CN208618475 U CN 208618475U
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- wirerope
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- 238000005192 partition Methods 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a kind of excavator telescopic booms, including support tube arm, second telescopic arm, third telescopic arm, wirerope one, wirerope two, wirerope three, oil cylinder, wirerope four, it is characterized in that being equipped with one frame of fixed wheel, one frame of driving wheel, two frame of fixed wheel, two frame of driving wheel, three frame of fixed wheel, four frame of driving wheel, fixed wheel one, driving wheel one, fixed wheel two, driving wheel two, fixed wheel three, driving wheel four, sliding block one and sliding block two, the second telescopic arm is equipped in retracting cylinder, third telescopic arm is equipped in second telescopic arm, second telescopic arm is slidably connected through sliding block one with retracting cylinder, third telescopic arm is slidably connected through sliding block two and the second telescopic arm, upper end is fixed with three frame of fixed wheel in second telescopic arm, three frame of fixed wheel is equipped with fixed wheel three, the sliding of third telescopic arm inner cavity is equipped with four frame of driving wheel, the heart channel of Hang-Shaoyin strut is fixedly connected with three frame of fixed wheel in four frame of driving wheel, Four frame of driving wheel is equipped with driving wheel four, has many advantages, such as that structure novel, flexible stroke is big, can arbitrarily convert bearing capacity as needed.
Description
Technical field
The utility model relates to excavator, specifically a kind of excavator telescopic boom.
Background technique
There are mainly two types of excavator telescopic devices used at present: the first is external telescopic oil cylinder, cunning on telescopic arm
Wheel group, wirerope and track, this technology exist following substantive insufficient: first is that since the connection of pulley is all individual wire
Rope, in order to meet design dipper capacity, so can only quantity of the overstriking wirerope without can increase wirerope, diameter of pulley again can not
Unlimited increasing, thus cause wirerope bending radius inadequate, service life of steel wire rope is directly affected, safety accident is easily caused
Occur.Second is that oil cylinder, pulley blocks, wirerope, track, exposed to be easy to collide with, unnecessary economic loss, but also shadow are caused
Ring exterior appearance.
Be for second pulley blocks telescopic arm stroke how long, telescopic oil cylinder just need to design how long stroke.
This technology there are insurmountable technological difficulties, due to telescopic oil cylinder overlength design in use
When full stretching, hydraulic stem can generate bending, thus high-frequency uses, and pulls hydraulic stem soon, pulls cylinder body, finally can not
Normal work causes serious financial consequences.
Summary of the invention
Utility model aims to solve the deficiencies in the prior art, realize built-in extension oil cylinder, pulley, steel wire
Rope, has accomplished that telescopic oil cylinder stroke is small, and telescopic arm stroke is big, can Fast synchronization it is flexible, can also be according to the practical need of dipper capacity
It wants, increases the quantity of wirerope, to ensure that the safety coefficient of wirerope, the design requirements such as bending radius are truly realized equipped super
The features such as big dipper capacity grab bucket, operating efficiency is high, finally solves current telescopic arm design disadvantage, has reached energy-saving high-efficiency environment-friendly
Purpose
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of mechanical-stretching arm, including support tube arm, the second telescopic arm, third telescopic arm, wirerope one, wirerope two,
Wirerope three, oil cylinder, wirerope four, it is characterised in that be equipped with one frame of fixed wheel, one frame of driving wheel, two frame of fixed wheel, two frame of driving wheel, fixed wheel
Three framves, four frame of driving wheel, fixed wheel one, driving wheel one, fixed wheel two, driving wheel two, fixed wheel three, driving wheel four, sliding block one and sliding block two, the branch
Support cylinder arm is axially arranged with partition, and support tube arm is divided into telescoping cylinder track tube and retracting cylinder, the telescoping cylinder rail by the partition
Road cylinder upper end is higher than retracting cylinder upper end, and upper end is fixed with two frame of fixed wheel in the telescoping cylinder track tube, and lower end is fixed with fixed wheel one
Frame, successively sliding is equipped with one frame of driving wheel, two frame of driving wheel in the telescoping cylinder track tube, and the cylinder tube is secured across driving wheel two
Frame, one end are fixedly connected with one frame of driving wheel, and the other end is fixedly connected through telescopic rod with two frame of fixed wheel, and one frame of fixed wheel is equipped with
Fixed wheel one, two frame of fixed wheel are equipped with fixed wheel two, and one frame of driving wheel is equipped with driving wheel one, and two frame of driving wheel is equipped with dynamic
Wheel two, the partition between one frame of fixed wheel and one frame of driving wheel are perforated equipped with wirerope one；
It is equipped with the second telescopic arm in the retracting cylinder, is equipped with third telescopic arm in second telescopic arm, described second stretches
Contracting arm is slidably connected through sliding block one with retracting cylinder, and the third telescopic arm is slidably connected through sliding block two and the second telescopic arm, described
Upper end is fixed with three frame of fixed wheel in second telescopic arm, and three frame of fixed wheel is equipped with fixed wheel three, and third telescopic arm lower end is set
There is connector, the sliding of third telescopic arm inner cavity is equipped with four frame of driving wheel, the heart channel of Hang-Shaoyin strut and three frame of fixed wheel in four frame of driving wheel
It being fixedly connected, four frame of driving wheel is equipped with driving wheel four,
Described one one end of wirerope is fixedly connected with one frame of fixed wheel, is then successively bypassed the driving wheel one on one frame of driving wheel, is determined
It takes turns and passes through after the fixed wheel one on a frame after wirerope one perforates, the other end is fixedly connected with the second telescopic arm upper end outer wall；
Described two one end of wirerope is fixedly connected with two frame of fixed wheel, after then successively bypassing driving wheel two, fixed wheel two, the other end
It is fixedly connected with the second telescopic arm upper end；
Described three one end of wirerope is fixedly connected with third telescopic arm upper end, is then passed around fixed wheel three and is penetrated into second and stretches
Contracting arm inner cavity is fixedly connected with the second telescopic arm lower part；
Described four one end of wirerope is fixedly connected with partition top, then successively penetrates the second telescopic arm, third telescopic arm
And around after driving wheel four, the other end is fixedly connected with third telescopic arm upper end.
The utility model can be equipped with one tensioning apparatus 33 of wirerope on one frame of fixed wheel comprising connection wire rod, company
Joint chair and fixture nut, the connection wire rod upper end are fixedly connected with wirerope one, the connection wire rod and are fixed on fixed wheel one
Attachment base on frame is fixed after being threadedly coupled through fixture nut.
The utility model can slide between two frame of two frame of driving wheel in the telescoping cylinder track tube and fixed wheel is equipped with wirerope
Two tensioning apparatus comprising tensioning block one, tensioning lead screw and locking nut, one lower end of tensioning block and the fixed company of wirerope two
It connecing, upper end is fixedly connected with tensioning lead screw, after the tensioning lead screw top is threadedly coupled with the threaded hole that two frame of fixed wheel is equipped with,
Through locking nut screw-threaded coupling on two frame of driving wheel, in favor of adjusting the tensioning of wirerope two by two tensioning apparatus of wirerope
Degree.
The utility model can be equipped with four tensioning apparatus of wirerope on the partition top comprising link block one, connecting filament
Bar one, fixing seat one and locking nut one, described link block one end are fixedly connected with wirerope four, the other end and connection wire rod one
It is fixedly connected, the connection wire rod one is threadedly coupled with the fixing seat one being fixed on partition and is locked at through locking nut one solid
In reservation one, in favor of adjusting the length or rate of tension of wirerope four by four tensioning apparatus of wirerope.
The utility model can be equipped with three tensioning apparatus of wirerope in second telescopic arm lower part comprising link block two,
Connection wire rod two, fixing seat two and locking nut two, described two one end of link block are fixedly connected with wirerope four, the other end and company
It connects screw rod two to be fixedly connected, the connection wire rod two is threadedly coupled with the fixing seat two being fixed on partition and through locking nut two
It is locked in fixing seat two, in favor of adjusting the length or rate of tension of wirerope four by four tensioning apparatus of wirerope.
One frame two sides of fixed wheel described in the utility model are fixedly connected through bearing, axis with fixed wheel one respectively, the utility model institute
It states two frame two sides of fixed wheel to be fixedly connected through bearing, axis with fixed wheel two respectively, the three frame two sides of fixed wheel through bearing, axis and are determined respectively
Wheel three is fixedly connected, and the four frame two sides of fixed wheel are fixedly connected through bearing, axis with fixed wheel four respectively, the one frame two sides of driving wheel point
It is not fixedly connected through bearing, axis with driving wheel one, the two frame two sides of driving wheel are fixedly connected through bearing, axis with driving wheel two respectively, institute
Four frame two sides of driving wheel are stated to be fixedly connected through bearing, axis with driving wheel four respectively, the fixed wheel one, driving wheel one, fixed wheel two, driving wheel two,
Fixed wheel three, driving wheel four are corresponding respectively in axial direction to be equipped at intervals with wirerope connection concave ring, in favor of increasing by two according to different loading capacity
The wirerope of item or two or more, substantially increase the bearing capacity of excavator, extend the service life of wirerope.
When the utility model stretching, extension when, oil cylinder is shunk upwards, oil cylinder drive one frame of driving wheel, two frame of driving wheel along driving cylinder to
Upper movement, so that wirerope one pulls the second telescopic arm to move down under the drive of one frame of driving wheel, meanwhile, wirerope two is in driving wheel two
To drive the second telescopic arm to move down in proportion and relative to 2 times of strokes of oil cylinder stroke under the drive of frame, at the same time, wirerope
Four and wirerope three then drive third telescopic arm to move downward simultaneously, similarly, oil cylinder counter motion, that is, drive the second telescopic arm and
For third telescopic arm synchronous into retracting cylinder, the utility model not only solves telescopic arm steel wire in carrying or use process
Rope is easy to the technical issues of colliding with, and exterior appearance；It is also solved simultaneously since above equipment is for small tonnage lifting
When machine or hoister in large tonnage, the crane of different model can only be selected, and steel wire can not be loaded in same mechanical-stretching arm
The technical issues of restricting and increasing bearing capacity.
Structure novel, flexible stroke is big, can arbitrarily convert as needed due to using the above structure, having for the utility model
The advantages that bearing capacity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the enlarged drawing of A in Fig. 1.
Fig. 3 is the enlarged drawing of B in Fig. 1.
Fig. 4 is the cross-sectional view of the left view of expansion rail cylinder in Fig. 2.
Appended drawing reference: the second telescopic arm 1, third telescopic arm 2, wirerope 1, wirerope 24, wirerope 35, oil cylinder 6,
Wirerope 47, one frame 8 of fixed wheel, two frame 10 of fixed wheel, two frame 11 of driving wheel, three frame 12 of fixed wheel, four frame 13 of driving wheel, are determined one frame 9 of driving wheel
Take turns one 14, driving wheel 1, fixed wheel 2 16, driving wheel 2 17, fixed wheel 3 18, driving wheel 4 19, connector 20, sliding block 1, sliding block two
22, partition 23, telescoping cylinder track tube 24, retracting cylinder 25, two tensioning apparatus 26 of wirerope, four tensioning apparatus 27 of wirerope, steel wire
Restrict three tensioning apparatus 28, strut 29, tensioning block 1, tensioning lead screw 31, locking nut 32.
Specific embodiment
The utility model is illustrated with reference to the accompanying drawings and examples.
As shown in the picture, a kind of mechanical-stretching arm, including support tube arm, the second telescopic arm 1, third telescopic arm 2, wirerope
One 3, wirerope 24, wirerope 35, oil cylinder 6, wirerope 47, it is characterised in that be equipped with one frame 8 of fixed wheel, one frame 9 of driving wheel, determine
Take turns two framves 10, two frame 11 of driving wheel, three frame 12 of fixed wheel, four frame 13 of driving wheel, fixed wheel 1, driving wheel 1, fixed wheel 2 16, driving wheel two
17, fixed wheel 3 18, driving wheel 4 19, sliding block 1 and sliding block 2 22, the support tube arm are axially arranged with partition 23, the partition 23
Support tube arm is divided into telescoping cylinder track tube 24 and retracting cylinder 25,24 upper end of telescoping cylinder track tube is higher than on retracting cylinder 25
It holds, upper end is fixed with two frame 10 of fixed wheel in the telescoping cylinder track tube 24, and lower end is fixed with one frame 8 of fixed wheel, the telescoping cylinder rail
Successively sliding is equipped with one frame 9 of driving wheel, two frame 11 of driving wheel in road cylinder 24, and 6 cylinder barrel of oil cylinder is secured across two frame 11 of driving wheel, one end
It is fixedly connected with one frame 9 of driving wheel, the other end is fixedly connected through telescopic rod with two frame 10 of fixed wheel, and one frame 8 of fixed wheel is equipped with fixed
1 are taken turns, two frame 10 of fixed wheel is equipped with fixed wheel 2 16, and one frame 9 of driving wheel is equipped with driving wheel 1, two frame of driving wheel
11 are equipped with driving wheel 2 17, and the partition 23 between one frame 8 of fixed wheel and one frame 9 of driving wheel is perforated equipped with wirerope one；
It is equipped with the second telescopic arm 1 in the retracting cylinder 25, is equipped with third telescopic arm 2 in second telescopic arm 1, described the
Two telescopic arms 1 are slidably connected through sliding block 1 and retracting cylinder 25, and the third telescopic arm 2 is through sliding block 2 22 and the second telescopic arm 1
It is slidably connected, upper end is fixed with three frame 12 of fixed wheel in second telescopic arm 1, and three frame of fixed wheel is equipped with fixed wheel 3 18, institute
2 lower end of third telescopic arm is stated equipped with connector 20,2 inner cavity of the third telescopic arm sliding is equipped with four frame 13 of driving wheel, the driving wheel
The heart channel of Hang-Shaoyin strut 29 is fixedly connected with three frame of fixed wheel in four framves, and four frame 13 of driving wheel is equipped with driving wheel 4 13,
Described one 3 one end of wirerope is fixedly connected with one frame 8 of fixed wheel, then successively around the driving wheel one on one frame 9 of driving wheel
15, after passing through the perforation of wirerope one after the fixed wheel 1 on one frame 8 of fixed wheel, the other end is fixed with 1 upper end outer wall of the second telescopic arm
Connection；
Described 24 one end of wirerope is fixedly connected with two frame 10 of fixed wheel, then successively bypasses driving wheel 2 17, fixed wheel 2 16
Afterwards, the other end is fixedly connected with 1 upper end of the second telescopic arm；
Described 35 one end of wirerope is fixedly connected with 2 upper end of third telescopic arm, is then passed around fixed wheel 3 18 and is penetrated into
Two telescopic arms, 1 inner cavity is fixedly connected with 1 lower part of the second telescopic arm；
Described 45 one end of wirerope is fixedly connected with 23 top of partition, then successively penetrates the second telescopic arm 1, third is stretched
Contracting arm 2 and around after driving wheel 4 19, the other end is fixedly connected with 2 upper end of third telescopic arm.
The utility model can be equipped with one tensioning apparatus 33 of wirerope on one frame of fixed wheel comprising connection wire rod, company
Joint chair and fixture nut, the connection wire rod upper end are fixedly connected with wirerope one, the connection wire rod and are fixed on fixed wheel one
Attachment base on frame is fixed after being threadedly coupled through fixture nut.
The utility model can slide between two frame 10 of two frame 11 of driving wheel in the telescoping cylinder track tube and fixed wheel is equipped with steel
Two tensioning apparatus 26 of cord comprising tensioning block 1, tensioning lead screw 31 and locking nut 32, one 26 lower end of tensioning block with
Wirerope 24 is fixedly connected, and upper end is fixedly connected with tensioning lead screw, what the tensioning lead screw top was equipped with two frame 10 of fixed wheel
After threaded hole is threadedly coupled, through locking nut screw-threaded coupling on two frame 11 of driving wheel, in favor of passing through two tensioning apparatus of wirerope
Adjust the length or rate of tension of wirerope two.
The utility model can be equipped with four tensioning apparatus 27 of wirerope on 23 top of partition comprising link block one connects
Screw rod one, fixing seat one and locking nut one are connect, described link block one end is fixedly connected with wirerope four, the other end and connecting filament
Bar one is fixedly connected, and the connection wire rod one is threadedly coupled with the fixing seat one being fixed on partition and locks through locking nut one
In fixing seat one, in favor of adjusting the length or rate of tension of wirerope four by four tensioning apparatus of wirerope.
The utility model can be equipped with three tensioning apparatus 28 of wirerope in second telescopic arm lower part comprising link block
Two, connection wire rod two, fixing seat two and locking nut two, described two one end of link block are fixedly connected with wirerope four, the other end
It is fixedly connected with connection wire rod two, the connection wire rod two is threadedly coupled and with the fixing seat two being fixed on partition through locking screw
Mother two is locked in fixing seat two, in favor of adjusting the length or rate of tension of wirerope four by four tensioning apparatus of wirerope.
One frame two sides of fixed wheel described in the utility model are fixedly connected through bearing, axis with fixed wheel one respectively, the utility model institute
It states two frame two sides of fixed wheel to be fixedly connected through bearing, axis with fixed wheel two respectively, the three frame two sides of fixed wheel through bearing, axis and are determined respectively
Wheel three is fixedly connected, and the four frame two sides of fixed wheel are fixedly connected through bearing, axis with fixed wheel four respectively, the one frame two sides of driving wheel point
It is not fixedly connected through bearing, axis with driving wheel one, the two frame two sides of driving wheel are fixedly connected through bearing, axis with driving wheel two respectively, institute
Four frame two sides of driving wheel are stated to be fixedly connected through bearing, axis with driving wheel four respectively, the fixed wheel one, driving wheel one, fixed wheel two, driving wheel two,
Fixed wheel three, driving wheel four are corresponding respectively in axial direction to be equipped at intervals with wirerope connection concave ring, in favor of increasing by two according to different loading capacity
The wirerope of item or two or more, substantially increase the bearing capacity of excavator, extend the service life of wirerope.
When the utility model stretching, extension, oil cylinder is shunk upwards, and oil cylinder drives one frame of driving wheel, two frame of driving wheel along telescoping cylinder rail
Road cylinder moves up, so that wirerope one pulls the second telescopic arm to move down under the drive of one frame of driving wheel, meanwhile, wirerope two exists
To drive the second telescopic arm to move down in proportion and relative to 2 times of strokes of oil cylinder stroke under the drive of two frame of driving wheel, at the same time,
Wirerope four and wirerope three then drive third telescopic arm to move downward simultaneously, and similarly, oil cylinder counter motion drives second to stretch
Into retracting cylinder, the utility model not only solves telescopic arm in carrying or use process for contracting arm and third telescopic arm synchronous
Middle wirerope is easy to the technical issues of colliding with, and exterior appearance；It also solves and can not be loaded in same telescopic arm simultaneously
Wirerope and the technical issues of increase bearing capacity.
Structure novel, flexible stroke is big, can arbitrarily convert as needed due to using the above structure, having for the utility model
The advantages that bearing capacity.
Claims (6)
1. a kind of excavator telescopic boom, including support tube arm, the second telescopic arm, third telescopic arm, wirerope one, wirerope two,
Wirerope three, oil cylinder, wirerope four, it is characterised in that be equipped with one frame of fixed wheel, one frame of driving wheel, two frame of fixed wheel, two frame of driving wheel, fixed wheel
Three framves, four frame of driving wheel, fixed wheel one, driving wheel one, fixed wheel two, driving wheel two, fixed wheel three, driving wheel four, sliding block one and sliding block two, the branch
Support cylinder arm is axially arranged with partition, and support tube arm is divided into telescoping cylinder track tube and retracting cylinder, the telescoping cylinder rail by the partition
Road cylinder upper end is higher than retracting cylinder upper end, is fixed with two frame of fixed wheel in the telescoping cylinder track tube, lower end is fixed with one frame of fixed wheel, institute
It states in telescoping cylinder track tube successively sliding and is equipped with one frame of driving wheel, two frame of driving wheel, the cylinder tube is secured across two frame of driving wheel, and one
End is fixedly connected with one frame of driving wheel, and the other end is fixedly connected through telescopic rod with two frame of fixed wheel, and one frame of fixed wheel is equipped with fixed wheel
One, two frame of fixed wheel is equipped with fixed wheel two, and one frame of driving wheel is equipped with driving wheel one, and two frame of driving wheel is equipped with driving wheel
Two, the partition between one frame of fixed wheel and one frame of driving wheel is perforated equipped with wirerope one；
It is equipped with the second telescopic arm in the retracting cylinder, is equipped with third telescopic arm, second telescopic arm in second telescopic arm
It being slidably connected through sliding block one with retracting cylinder, the third telescopic arm is slidably connected through sliding block two and the second telescopic arm, and described second
Upper end is fixed with three frame of fixed wheel in telescopic arm, and three frame of fixed wheel is equipped with fixed wheel three, and third telescopic arm lower end, which is equipped with, to be connected
Fitting, the sliding of third telescopic arm inner cavity are equipped with four frame of driving wheel, and the heart channel of Hang-Shaoyin strut is fixed with three frame of fixed wheel in four frame of driving wheel
Connection, four frame of driving wheel are equipped with driving wheel four,
Described one one end of wirerope is fixedly connected with one frame of fixed wheel, then successively around driving wheel one, the fixed wheel one on one frame of driving wheel
After passing through the perforation of wirerope one after fixed wheel one on frame, the other end is fixedly connected with the second telescopic arm upper end outer wall；
Described two one end of wirerope is fixedly connected with two frame of fixed wheel, then successively around driving wheel two, after fixed wheel two, the other end and the
Two telescopic arm upper ends are fixedly connected；
Described three one end of wirerope is fixedly connected with third telescopic arm upper end, is then passed around fixed wheel three and is penetrated into the second telescopic arm
Inner cavity is fixedly connected with the second telescopic arm lower part；
Described four one end of wirerope is fixedly connected with partition top, then successively penetrate the second telescopic arm, third telescopic arm and around
After crossing driving wheel four, the other end is fixedly connected with third telescopic arm upper end.
2. a kind of excavator telescopic boom according to claim 1, it is characterised in that one frame of fixed wheel is equipped with wirerope
One tensioning apparatus comprising connection wire rod, attachment base and fixture nut, the connection wire rod upper end and wirerope one are fixed to be connected
It connects, the connection wire rod is fixed after being threadedly coupled with the attachment base being fixed on one frame of fixed wheel through fixture nut.
3. a kind of excavator telescopic boom according to claim 1, it is characterised in that the driving wheel in the telescoping cylinder track tube
Sliding is equipped with two tensioning apparatus of wirerope between two frame of two framves and fixed wheel comprising tensioning block one, tensioning lead screw and locking nut, institute
One lower end of tensioning block is stated to be fixedly connected with wirerope two, upper end with tensioning lead screw be fixedly connected, the tensioning lead screw top with calmly
After taking turns the threaded hole threaded connection that two framves are equipped with, through locking nut screw-threaded coupling on two frame of driving wheel.
4. a kind of excavator telescopic boom according to claim 1 or 2 or 3, it is characterised in that the partition top is equipped with steel
Four tensioning apparatus of cord comprising link block one, connection wire rod one, fixing seat one and locking nut one, described link block one end
Be fixedly connected with wirerope four, the other end is fixedly connected with connection wire rod one, the connection wire rod one be fixed on partition
Fixing seat one is threadedly coupled and is locked in fixing seat one through locking nut one, in favor of being adjusted by four tensioning apparatus of wirerope
The length or rate of tension of wirerope four.
5. a kind of excavator telescopic boom according to claim 4, it is characterised in that second telescopic arm lower part is equipped with steel
Three tensioning apparatus of cord comprising link block two, connection wire rod two, fixing seat two and locking nut two, the link block 21
End is fixedly connected with wirerope four, and the other end is fixedly connected with connection wire rod two, the connection wire rod two and is fixed on partition
Fixing seat two be threadedly coupled and be locked in fixing seat two through locking nut two.
6. a kind of excavator telescopic boom according to claim 1, it is characterised in that the fixed wheel one, driving wheel one, fixed wheel two,
Pulley blocks are respectively adopted in driving wheel two, fixed wheel three, driving wheel four.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820791219 | 2018-05-25 | ||
| CN2018207912191 | 2018-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208618475U true CN208618475U (en) | 2019-03-19 |
Family
ID=65704814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821059917.9U Expired - Fee Related CN208618475U (en) | 2018-05-25 | 2018-07-05 | Excavator telescopic boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208618475U (en) |
-
2018
- 2018-07-05 CN CN201821059917.9U patent/CN208618475U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 |