CN202099828U - Bucket arm connecting barrel for mining excavator - Google Patents
Bucket arm connecting barrel for mining excavator Download PDFInfo
- Publication number
- CN202099828U CN202099828U CN2011201852566U CN201120185256U CN202099828U CN 202099828 U CN202099828 U CN 202099828U CN 2011201852566 U CN2011201852566 U CN 2011201852566U CN 201120185256 U CN201120185256 U CN 201120185256U CN 202099828 U CN202099828 U CN 202099828U
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- CN
- China
- Prior art keywords
- connecting barrel
- connecting cylinder
- bucket arm
- steel plate
- excavator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a bucket arm connecting barrel for a mining excavator, which relates to the mining excavator and is used for solving the problem that an elliptical connecting barrel cannot meet the using requirement of a large-sized excavator and a circular connecting barrel is difficult to manufacture. The bucket arm connecting barrel is formed by jointing two semicircular steel plates, arranging a base plate at a jointing position by welding. By adopting the bucket arm connecting barrel, the torsion resistance and rigidity of a bucket arm are enhanced, the resilience force of a bent steel plate is reduced, the manufacturing difficulty is lowered, and the bending resistance of the connecting barrel is enhanced; and the bucket arm connecting barrel is suitable for large-sized mining excavators.
Description
Technical field
The utility model relates to mine excavator, particularly a kind of dipper connecting cylinder of mine excavator.
Background technology
The pushing mode of mine excavator is divided into two kinds: a kind of is gear-tooth bar pushing, and another kind is the wire rope pushing.What the pushing of gear-tooth bar was adopted is the twin-bucket bar, as shown in Figure 1: left dipper 2, right dipper 3 connect together through connecting cylinder 1, thereby guarantee the parallelism and the resistance to torsion of left and right dipper.At present, the dipper connecting cylinder of excavator generally adopts ellipsoidal structure, promptly is welded into oval connecting cylinder by two curved plates.Along with the continuous increase of excavator bucket capacity, the intensity of oval connecting cylinder and torsional property have satisfied not the instructions for use of large excavator.Facts have proved, connecting cylinder is manufactured resistance to torsion and the intensity that circle can improve dipper.In order to satisfy the requirements at the higher level of large excavator to dipper connecting cylinder intensity and torsional property, prior art attempts to adopt circular dipper connecting cylinder.Because the requirement of design strength, large excavator dipper connecting cylinder need be used the high strength steel plate manufacturing of wall thickness greater than 60mm.The operation of high-strength steel plate circumflexion is difficulty very, and simultaneously, the elastic deformation behind the steel plate bending is bigger, and promptly bending springback power is bigger, causes connecting cylinder butt weld cracking easily, also causes connecting cylinder and left and right dipper weld stress raisers easily.Prior art does not still have ripe technology aspect the making of the circular connecting cylinder of excavator boom.
Summary of the invention
The purpose of the utility model is to overcome the shortcoming of prior art; A kind of dipper connecting cylinder of mine excavator is provided; Connecting cylinder adopts the circular cross section structure; The intensity and the torsional property that solve existing oval connecting cylinder have satisfied not the large excavator instructions for use, and solve the problem that circular connecting cylinder is made difficulty.
The utility model is realized through following technical scheme:
A kind of dipper connecting cylinder of mine excavator; Be left dipper, right dipper is flatly welded together with connecting cylinder; Said connecting cylinder is welded by two curved plates; It is characterized in that: two said curved plates are semicircle steel plate: upper semi-circle steel plate, lower half circle steel plate, said upper semi-circle steel plate and lower half circle steel plate dock, and at joint the backing plate welding are set.
The utility model compared with prior art owing to adopt circular connecting cylinder structure, has improved the resistance to torsion and the rigidity of dipper; Because manufacture craft is taked the semicircle steel plates butt joint of two bendings, reduced screen resilience behind the steel plate bending, and reduced manufacture difficulty.
Description of drawings
Fig. 1 connecting cylinder installation drawing
Fig. 2 connecting cylinder sectional view
Fig. 3 is a connecting cylinder butt weld direction sketch map
The utility model is further described through embodiment below in conjunction with accompanying drawing
The specific embodiment
Like Fig. 1,2, shown in 3; A kind of dipper connecting cylinder of mine excavator; Be with connecting cylinder 1 that left dipper 2, right dipper 3 is flatly welded together, said connecting cylinder 1 is welded by two curved plates, and two said curved plates are semicircle steel plate: upper semi-circle steel plate 1-1, lower half circle steel plate 1-2; Said upper semi-circle steel plate 1-1 and lower half circle steel plate 1-2 dock, and at joint backing plate 4 welding are set.
Claims (1)
1. the dipper connecting cylinder of a mine excavator; Be left dipper (2), right dipper (3) is flatly welded together with connecting cylinder (1); Said connecting cylinder (1) is welded by two curved plates; It is characterized in that: two said curved plates are semicircle steel plate: upper semi-circle steel plate (1-1), lower half circle steel plate (1-2), said upper semi-circle steel plate (1-1) and lower half circle steel plate (1-2) dock, and at joint backing plate (4) welding are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201852566U CN202099828U (en) | 2011-05-31 | 2011-05-31 | Bucket arm connecting barrel for mining excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201852566U CN202099828U (en) | 2011-05-31 | 2011-05-31 | Bucket arm connecting barrel for mining excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202099828U true CN202099828U (en) | 2012-01-04 |
Family
ID=45385847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201852566U Expired - Fee Related CN202099828U (en) | 2011-05-31 | 2011-05-31 | Bucket arm connecting barrel for mining excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202099828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296659A (en) * | 2011-05-31 | 2011-12-28 | 太原重工股份有限公司 | Bucket arm connecting cylinder of mine excavator and manufacturing method of bucket arm connecting cylinder |
-
2011
- 2011-05-31 CN CN2011201852566U patent/CN202099828U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296659A (en) * | 2011-05-31 | 2011-12-28 | 太原重工股份有限公司 | Bucket arm connecting cylinder of mine excavator and manufacturing method of bucket arm connecting cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140531 |