CN204662531U - Excavator rapid telescopic arm - Google Patents
Excavator rapid telescopic arm Download PDFInfo
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- CN204662531U CN204662531U CN201520313987.2U CN201520313987U CN204662531U CN 204662531 U CN204662531 U CN 204662531U CN 201520313987 U CN201520313987 U CN 201520313987U CN 204662531 U CN204662531 U CN 204662531U
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- lever arm
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- excavator
- oil cylinder
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Abstract
The utility model relates to a kind of excavator rapid telescopic arm.Its feature comprises the first lever arm, the second lever arm and the 3rd lever arm, and the first lever arm and the second lever arm are the hollow tubular of both ends open.Described second lever arm is positioned at the first lever arm, and the second lever arm coordinates in flexible shape with the first lever arm.Described 3rd lever arm is positioned at the second lever arm, and the 3rd lever arm coordinates in flexible shape with the second lever arm.This rapid telescopic arm is arranged on that pole arm excavator replacing be connected with scraper bowl, greatly can improves scraper bowl and stretch into the degree of depth of holding machine side, meet the user demand of user, it takes up room little simultaneously, and operational security is higher.
Description
Technical field
The utility model relates to a kind of excavator assembly, is specifically excavator to be connected with motion arm, for carrying the rapid telescopic arm of scraper bowl.
Background technology
Excavator, also known as excavation machinery, is excavate higher or lower than the material holding machine side with scraper bowl, and loads haulage vehicle or unload the earth moving plant to rickyard, its material mainly soil, coal, silt and Soil and Rock after pre-pine excavated.From the development of engineering machinery in recent years, the development of excavator is relatively very fast, and excavator has become one of topmost engineering machinery in engineering construction.
Traditional excavator is crank arm type structure, and namely it is for carrying the assembly of scraper bowl for cranking arm, and cranking arm is that two lever arms utilizing oil cylinder pushing mutually hinged rotate along pin joint, thus realize cranking arm bending and stretching, its operating principle is similar to the arm of people.This crank arm type structure can only be applicable to operation among a small circle, and namely to stretch into the degree of depth of holding machine side limited for its conveying scraper bowl, even if lengthen its job area of cranking arm still be difficult to meet the degree of depth that user requires, moreover crank arm lengthen after take up room large, operation is dangerous.
Utility model content
Problem to be solved in the utility model is to provide a kind of excavator rapid telescopic arm, this rapid telescopic arm is arranged on that pole arm excavator replacing be connected with scraper bowl, greatly can improve scraper bowl and stretch into the degree of depth of holding machine side, meet the user demand of user, it takes up room little simultaneously, and operational security is higher.
For solving the problem, take following technical scheme:
The feature of excavator rapid telescopic arm of the present utility model comprises the first lever arm, the second lever arm and the 3rd lever arm, and the first lever arm and the second lever arm are the hollow tubular of both ends open.Described second lever arm is positioned at the first lever arm, and the second lever arm coordinates in flexible shape with the first lever arm.Described 3rd lever arm is positioned at the second lever arm, and the 3rd lever arm coordinates in flexible shape with the second lever arm.
Further improvement of the utility model scheme is that the side of described first lever arm has oil cylinder cover, and have oil cylinder in this oil cylinder cover, this oil cylinder is longitudinally arranged along the first lever arm, and in being fixedly connected with between the cylinder body of oil cylinder with the first lever arm; The overhanging end of described cylinder piston rod is hinged with gear, and the first lever arm corresponding to the stroke range of cylinder piston rod overhanging end has opening, the oily inboard wall of cylinder liner that opening is relative is fixed with the first tooth bar, the second lever arm side that opening is corresponding is fixed with the second tooth bar, and the first tooth bar, the second tooth bar are all meshed with described gear.Further, described gear is concentric gear, and the gear ring that on concentric gear, radius is less is meshed with the first tooth bar, and the gear ring that on concentric gear, radius is larger is meshed with the second tooth bar.This structure is while utilizing oil cylinder pushing (with one heart) gear reciprocating to move, by being fixed on the first tooth bar in the first lever arm oil cylinder cover, being fixed on the second tooth bar on the second lever arm and the gear motion between (concentric) gear, make the translational speed of the second lever arm outer room in the first lever arm substantially exceed the translational speed of cylinder piston rod, thus achieve the quick-expansion of the second lever arm.
Further improvement of the utility model scheme be described second lever arm external part on have the first sprocket wheel, there is the second sprocket wheel that one end that the second lever arm is positioned at the first lever arm.There are the first chain and the second chain in first lever arm one end that described second lever arm external part is corresponding, one end of first chain with the first lever arm in being fixedly connected with, the other end of the first chain is positioned at that one end of the second lever arm in being fixedly connected with the 3rd lever arm outside the first lever arm after the first sprocket wheel is covert, one end of second chain is with the first lever arm in being fixedly connected with, and the other end of the second chain is positioned at that one end of the second lever arm in being fixedly connected with the 3rd lever arm inside the first lever arm after the second sprocket wheel is covert.This structure realizes the linkage telescopic of the 3rd lever arm outer room in the second lever arm, thus improves the responsiveness of this telescopic arm while the second lever arm outer room in the first lever arm can be made flexible.
Wherein, the outside of described first lever arm is fixed with Connection Block, and this Connection Block is used for being connected with the motion arm of excavator.
Take such scheme, have the following advantages:
Because the second lever arm of excavator rapid telescopic arm of the present utility model is positioned at the first lever arm, and the second lever arm coordinates in flexible shape with the first lever arm, and the 3rd lever arm is positioned at the second lever arm, and the 3rd lever arm coordinates in flexible shape with the second lever arm.Installed on board a dredger by this rapid telescopic arm, replace that pole arm be connected with scraper bowl, greatly can improve scraper bowl and stretch into the degree of depth of holding machine side, meet the user demand of user, it takes up room little simultaneously, and operational security is higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of excavator rapid telescopic arm of the present utility model;
View when Fig. 2 is the first lever arm in Fig. 1, the second lever arm stretches out;
Fig. 3 be in Fig. 2 A-A to view;
Fig. 4 be in Fig. 3 chain move towards enlarged diagram;
Fig. 5 is the using state schematic diagram of excavator rapid telescopic arm of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figures 1 to 4, excavator rapid telescopic arm of the present utility model comprises the hollow tubular that the first lever arm 3, second lever arm 2 and the 3rd lever arm 1, first lever arm 3 and the second lever arm 2 are both ends open.Described second lever arm 2 is positioned at the first lever arm 3, and the second lever arm 2 coordinates in flexible shape with the first lever arm 3.Described 3rd lever arm 1 is positioned at the second lever arm 2, and the 3rd lever arm 1 coordinates in flexible shape with the second lever arm 2.
As depicted in figs. 1 and 2, the side of described first lever arm 3 has oil cylinder to overlap 6, and have oil cylinder 7 in this oil cylinder cover 6, this oil cylinder 7 is longitudinally arranged along the first lever arm 3, and in being fixedly connected with between the cylinder body of oil cylinder 7 with the first lever arm 3.The overhanging end of described oil cylinder 7 piston rod is hinged with gear 5, and the first lever arm 3 corresponding to the stroke range of oil cylinder 7 piston rod overhanging end has opening, the oil cylinder that opening is relative overlaps on 6 inwalls and is fixed with the first tooth bar 4, the second lever arm 2 side that opening is corresponding is fixed with the second tooth bar 8, first tooth bar 4, second tooth bar 8 and is all meshed with described gear 5.Described gear 5 is concentric gear, and the gear ring that on concentric gear, radius is less is meshed with the first tooth bar 4, and the gear ring that on concentric gear, radius is larger is meshed with the second tooth bar 8.
As shown in Figure 3 and Figure 4, that one end external part of described second lever arm 2 having the first sprocket wheel 12, second lever arm 2 be positioned at the first lever arm 3 there is the second sprocket wheel 9.There is the first chain 11 and the second chain 10 first lever arm 3 one end that described second lever arm 2 external part is corresponding, one end of first chain 11 with the first lever arm 3 in being fixedly connected with, the other end of the first chain 11 is positioned at that one end of the second lever arm 2 in being fixedly connected with the 3rd lever arm 1 outside the first lever arm 3 after the first sprocket wheel 12 is covert, one end of second chain 10 is with the first lever arm 3 in being fixedly connected with, and the other end of the second chain 10 is positioned at that one end of the second lever arm 2 in being fixedly connected with the 3rd lever arm 1 inside the first lever arm 3 after the second sprocket wheel 9 is covert.
As shown in Figure 3, the outside of described first lever arm 3 is fixed with Connection Block 13, and this Connection Block 13 is for being connected with the motion arm of excavator.
As shown in Figure 5, during use, Connection Block 13 on first lever arm 3 in excavator rapid telescopic arm of the present utility model is connected with the actuating arm of excavator, scraper bowl is arranged on the external part of the 3rd lever arm 1 simultaneously, namely replaces that pole arm be connected with scraper bowl in prior art with this rapid telescopic arm.This rapid telescopic arm can stretch arbitrarily according to the demand of digging operation, and compared with prior art, it stretches into the degree of depth of holding machine side and greatly improves.
Claims (5)
1. excavator rapid telescopic arm, it is characterized in that comprising the first lever arm (3), the second lever arm (2) and the 3rd lever arm (1), the first lever arm (3) and the second lever arm (2) are the hollow tubular of both ends open; Described second lever arm (2) is positioned at the first lever arm (3), and the second lever arm (2) coordinates in flexible shape with the first lever arm (3); Described 3rd lever arm (1) is positioned at the second lever arm (2), and the 3rd lever arm (1) coordinates in flexible shape with the second lever arm (2).
2. excavator rapid telescopic arm as claimed in claim 1, it is characterized in that there is oil cylinder cover (6) side of described first lever arm (3), oil cylinder (7) is had in this oil cylinder cover (6), this oil cylinder (7) is longitudinally arranged along the first lever arm (3), and in being fixedly connected with between the cylinder body of oil cylinder (7) with the first lever arm (3); The overhanging end of described oil cylinder (7) piston rod is hinged with gear (5), and the first lever arm (3) corresponding to the stroke range of oil cylinder (7) piston rod overhanging end has opening, oil cylinder cover (6) inwall that opening is relative is fixed with the first tooth bar (4), the second lever arm (2) side that opening is corresponding is fixed with the second tooth bar (8), and the first tooth bar (4), the second tooth bar (8) are all meshed with described gear (5).
3. excavator rapid telescopic arm as claimed in claim 2, it is characterized in that described gear (5) is concentric gear, the gear ring that on concentric gear, radius is less is meshed with the first tooth bar (4), and the gear ring that on concentric gear, radius is larger is meshed with the second tooth bar (8).
4. excavator rapid telescopic arm as claimed in claim 1, the external part that it is characterized in that described second lever arm (2) has the first sprocket wheel (12), and there is the second sprocket wheel (9) that one end that the second lever arm (2) is positioned at the first lever arm (3), there are the first chain (11) and the second chain (10) in the first lever arm (3) one end that described second lever arm (2) external part is corresponding, one end of first chain (11) with the first lever arm (3) in being fixedly connected with, the other end of the first chain (11) is positioned at that one end of second lever arm (2) in be fixedly connected with the 3rd lever arm (1) from the first lever arm (3) outside after the first sprocket wheel (12) is covert, one end of second chain (10) with the first lever arm (3) in being fixedly connected with, the other end of the second chain (10) is positioned at that one end of second lever arm (2) in be fixedly connected with the 3rd lever arm (1) from the first lever arm (3) inner side after the second sprocket wheel (9) is covert.
5. the excavator rapid telescopic arm according to any one of Claims 1-4, it is characterized in that the outside of described first lever arm (3) is fixed with Connection Block (13), this Connection Block (13) is for being connected with the motion arm of excavator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313987.2U CN204662531U (en) | 2015-05-15 | 2015-05-15 | Excavator rapid telescopic arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520313987.2U CN204662531U (en) | 2015-05-15 | 2015-05-15 | Excavator rapid telescopic arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204662531U true CN204662531U (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520313987.2U Active CN204662531U (en) | 2015-05-15 | 2015-05-15 | Excavator rapid telescopic arm |
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| Country | Link |
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| CN (1) | CN204662531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831767A (en) * | 2015-05-15 | 2015-08-12 | 江苏蓝力重工科技有限公司 | Quick telescopic arm for excavator |
| CN107700562A (en) * | 2017-09-15 | 2018-02-16 | 安徽合矿环境科技股份有限公司 | A kind of gear slider device |
-
2015
- 2015-05-15 CN CN201520313987.2U patent/CN204662531U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831767A (en) * | 2015-05-15 | 2015-08-12 | 江苏蓝力重工科技有限公司 | Quick telescopic arm for excavator |
| CN107700562A (en) * | 2017-09-15 | 2018-02-16 | 安徽合矿环境科技股份有限公司 | A kind of gear slider device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |