CN111827380A - Long-distance excavator movable arm suitable for river course operation - Google Patents
Long-distance excavator movable arm suitable for river course operation Download PDFInfo
- Publication number
- CN111827380A CN111827380A CN202010761721.XA CN202010761721A CN111827380A CN 111827380 A CN111827380 A CN 111827380A CN 202010761721 A CN202010761721 A CN 202010761721A CN 111827380 A CN111827380 A CN 111827380A
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- Prior art keywords
- hinged
- connecting seat
- arm
- linkage rod
- bucket
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
- E02F3/382—Connections to the frame; Supports for booms or arms
Abstract
The invention discloses a movable arm of a long-distance excavator suitable for river channel operation, wherein one end of the movable arm is hinged with a base through a first pin shaft, the other end of the movable arm is hinged with the end part of a second arm, the other end of the second arm is hinged with one end part of a third arm, the free end of the third arm is connected with a bucket through a bucket connecting piece, a second connecting seat is arranged on one side edge of the hinged end of the movable arm and the base, a first connecting seat is arranged close to the middle part of the other side edge of the movable arm relative to the second connecting seat, a second linkage rod is hinged on the first connecting seat, the free end of the second linkage rod is hinged with a first linkage rod, and the free end of the first linkage rod is rotatably connected to the base through a third pin shaft; the base is hinged to the first linkage rod through a first pin shaft, and the base is hinged to the second linkage rod through a second pin shaft. The invention is suitable for river channel operation.
Description
Technical Field
The invention relates to engineering machinery, in particular to a long-distance excavator movable arm suitable for river course operation.
Background
The excavator is an important engineering machine, and can be used for excavating soil, coal, silt, loose blocky rocks and other materials or loading the materials into a transport vehicle. Generally, excavators can be classified into a crawler excavator and a wheel excavator according to a traveling manner. And can be divided into hydraulic excavators and mechanical excavators according to the transmission mode. Fig. 1 is a schematic structural diagram of a general hydraulic excavator, and as shown in fig. 1, the general hydraulic excavator generally includes a vehicle body 200 and a boom 100 disposed on the vehicle body 200, while the existing boom generally includes a bucket connecting arm 102 directly connected to a bucket 101 of the prior art, and a power arm 103 hinged to the bucket connecting arm 102, the power arm 103 is driven by a first power arm hydraulic rod 105 and a second power arm hydraulic rod 106, and the bucket connecting arm 102 is also provided with a connecting arm hydraulic rod for driving the bucket, and the bucket 101 of the prior art is pivotally connected to the bucket connecting arm by a first bucket rotating pin 1011 and a second bucket rotating pin 1012. The raising and forward extension of the entire boom can be achieved by the driving of the first power arm hydraulic lever 105 and the second power arm hydraulic lever 106, whereas the driving of the link arm hydraulic lever 104 is relied upon to operate the bucket 101 of the prior art for the excavation. In fact, the driving principle is basically similar at the boom actuation level, regardless of the crawler excavator or the wheel excavator, as long as the excavator belongs to a hydraulic driving excavator. However, in some special conditions, the structure of the boom may be very different, for example, for general earth excavation, the conventional excavator shown in fig. 1 can be well implemented. However, for river work, a special lengthened boom is required to realize the operation, or a ship is relied on or a temporary bearing platform is built to bear the excavator body. For example, chinese patent application CN103046587A discloses a backhoe loader having an elongated arm, which includes a boom and a frame, wherein the lower end of the boom is hinged to the frame, the upper end of the boom is hinged to one end of the elongated arm, the other end of the elongated arm is hinged to one end of a bucket rod, and the other end of the bucket rod is hinged to a bucket. In fact, in the patent, the lifting height is increased by adding an extension arm between the arm and the boom, but the structure cannot realize long-distance operation similar to river operation.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a long-reach excavator boom suitable for river work.
In order to achieve the above purpose, one end of the long-distance excavator movable arm suitable for river channel operation provided by the invention is hinged with a base through a first pin shaft, the other end of the long-distance excavator movable arm is hinged with the end part of a second arm, the other end of the second arm is hinged with one end part of a third arm, the free end of the third arm is connected with a bucket through a bucket connecting piece, wherein a second connecting seat is arranged on one side edge of the hinged end of the movable arm and the base, a first connecting seat is arranged close to the middle part of the other side edge of the movable arm relative to the second connecting seat, a second linkage rod is hinged on the first connecting seat, the free end of the second linkage rod is hinged with a first linkage rod, and the free end of the first linkage rod is rotatably connected to the base through a third pin shaft; the base is hinged to the first linkage rod through a first pin shaft, and the base is hinged to the second linkage rod through a second pin shaft.
Preferably, the position of the second pin shaft on the base is located between the first pin shaft and the third pin shaft, so that when the fourth hydraulic rod is actuated, an included angle between the first linkage rod and the second linkage rod is changed.
Preferably, a third connecting seat is arranged on the second arm on the same side relative to the second connecting seat, and a third hydraulic rod is arranged between the second connecting seat and the third connecting seat; the second arm and the third connecting seat are positioned on the same side, and a fourth connecting seat is further arranged on the second arm; a sixth connecting seat is arranged on the third arm at the same side relative to the fourth connecting seat, and a second hydraulic rod is arranged between the sixth connecting seat and the fourth connecting seat; and a fifth connecting seat is arranged on the other side, opposite to the sixth connecting seat, of the third arm, a first hydraulic rod is hinged to the fifth connecting seat, and the other end of the first hydraulic rod is hinged to the bucket connecting piece.
Preferably, the bucket connecting piece comprises a body and a linkage mechanism hinged to the body, the linkage mechanism comprises a third linkage rod and a fourth linkage rod, the end parts of the third linkage rod and the fourth linkage rod are mutually hinged through an eighth pin shaft, and the other end of the third linkage rod is hinged to the body through a fifth pin shaft; the third arm is hinged to the bucket connecting piece through a fourth pin shaft, a seventh connecting seat is further arranged on the side edge of the hinged end of the third arm and the bucket connecting piece, the seventh connecting seat is on the same side as the fifth connecting seat and is hinged to the other end of the fourth linkage rod, and the first hydraulic rod is hinged to the hinged position of the third linkage rod and the fourth linkage rod, so that when the first hydraulic rod actuates, an included angle between the third linkage rod and the fourth linkage rod is changed.
Preferably, the bucket comprises a bucket body and a bucket digging part formed on one side of the bucket body, and a connecting part hinged with the bucket connecting piece through a sixth pin shaft and a seventh pin shaft is arranged on the bucket body on the side opposite to the bucket digging part.
Preferably, a reinforcing rib is provided between the connecting portion and the bucket body.
Preferably, the first linkage rod and the second linkage rod are symmetrically provided with two linkage rods and hinged through the same pin shaft.
Preferably, the third linkage rod and the fourth linkage rod are symmetrically provided with two linkage rods and hinged through an eighth pin shaft.
Preferably, the bucket connecting piece comprises a first side plate and a second side plate which are arranged oppositely, the first side plate and the second side plate are identical in structure, a middle plate is arranged between the first side plate and the second side plate, a vertical mounting plate is perpendicularly arranged on the surface of the middle plate, a rotating connecting mechanism with an adjustable angle is connected onto the vertical mounting plate, and the rotating connecting mechanism is rotatably meshed with the seventh pin shaft and the tenth pin shaft respectively.
Preferably, the rotary connecting mechanism comprises a sleeve, and a first ball head connecting piece and a second ball head connecting piece which are inserted at two ends of the sleeve respectively, the first ball head connecting piece is rotatably connected to the vertical mounting plate, the second ball head connecting piece is rotatably connected with a rotatable connecting piece, and two ends of the rotatable connecting piece are rotatably meshed with the seventh pin shaft and the tenth pin shaft respectively.
Compared with the prior art, the long-distance excavator movable arm suitable for river channel operation provided by the invention has the advantages that through the arrangement of the first linkage rod and the second linkage rod, the fourth hydraulic rod acts on the hinged position of the first linkage rod and the second linkage rod, the excavator arm can be stably controlled to horizontally extend out, the long-distance operation of the excavator is realized, and the long-distance excavator movable arm is particularly suitable for river channel excavation or dredging operation. And compared with the traditional excavator arm, the excavator arm can work at a large distance, so that the excavator can be arranged in a relatively safe zone on the river bank, and a temporary water work platform does not need to be built.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.
Drawings
Fig. 1 is a schematic structural diagram of an excavator and a boom thereof (including an excavator body) according to the prior art.
Fig. 2 is a schematic structural diagram of a boom of a long-distance excavator suitable for river work according to the present invention.
Fig. 3 is a schematic perspective view (including a partially enlarged view) of a boom of a long-distance excavator suitable for river work according to the present invention.
Fig. 4 is a top view of a bucket attachment for a long reach excavator boom suitable for use in river operations in accordance with the present invention.
Fig. 5 is a schematic sectional view taken along the line a-a in fig. 4.
Fig. 6 is a schematic view (including no parts) of the internal structure of the bucket attachment of the long-reach excavator boom suitable for river work according to the present invention.
Description of the main reference numerals:
the prior art is as follows:
100-boom, 200-body, 101-prior art bucket, 102-bucket link arm, 103-power arm, 104-link arm hydraulic lever, 105-first power arm hydraulic lever, 106-second power arm hydraulic lever, 1011-first bucket pivot pin, 1012-second bucket pivot pin;
the invention comprises the following steps:
1-base, 2-movable arm, 3-second arm, 4-third arm, 5-bucket connector, 6-bucket, 7-first hydraulic rod, 8-second hydraulic rod, 9-third hydraulic rod, 10-fourth hydraulic rod, 11-first link rod, 12-second link rod, 13-base body, 131-first pin, 132-second pin, 133-third pin, 21-first connecting seat, 22-second connecting seat, 31-third connecting seat, 32-fourth connecting seat, 41-fifth connecting seat, 42-sixth connecting seat, 43-seventh connecting seat, 44-hinge point, 51-third link rod, 52-fourth link rod, 53-fourth pin, 54-fifth pin, 55-a sixth pin shaft, 56-a seventh pin shaft, 57-an eighth pin shaft, 61-a bucket body, 62-a bucket digging part, 63-a connecting part, 64-a reinforcing rib plate, 501-a first side plate, 502-a second side plate, 503-a rotary connecting mechanism, 504-a middle plate, 505-a vertical mounting plate, 5011-a top plate, 5012-a bottom plate, 5031-a first ball head connector, 5032-a second ball head connector, 5033-a spring, 5034-a sleeve, 5035-a rotatable clamping connector, 5036-a ball shell, 5037-a ninth pin shaft, 5038-a tenth pin shaft, 50121-a first bayonet, 50122-a second bayonet, 50351-a limiting protrusion and 50352-a bending part.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.
As shown in fig. 2 and 3, an embodiment of the invention provides a long-distance excavator boom 2 suitable for river course operation, one end of which is hinged to a base 1 through a first pin 131, and the base 1 can be mounted on a traveling vehicle, which is not shown in the drawings, but it can be understood that the technical solution of the invention can be implemented by a conventional crawler-type traveling vehicle or a conventional wheeled vehicle. The other end of the movable arm 2 is hinged to the end of a second arm 3, the other end of the second arm 3 is hinged to one end of a third arm 4, the free end of the third arm 4 is connected with a bucket 6 through a bucket connecting piece 5, wherein a second connecting seat 22 is arranged on one side edge of the hinged end of the movable arm 2 and the base 1, a first connecting seat 21 is arranged on the other side edge of the movable arm relative to the second connecting seat 22 close to the middle, a second linkage rod 12 is hinged to the first connecting seat 21, the free end of the second linkage rod 12 is hinged to a first linkage rod 11, and the free end of the first linkage rod 11 is rotatably connected to the base 1 through a third pin shaft 133; the hydraulic support further comprises a fourth hydraulic rod 10 (a movable arm cylinder), one end of the fourth hydraulic rod 10 is hinged to the base 1 through a second pin shaft 132, and the other end of the fourth hydraulic rod is hinged to the hinged portion of the first linkage rod 11 and the second linkage rod 12. As a result, in the embodiment of the present invention, the actuation control of the boom 2 can be realized by the actuation of the fourth hydraulic lever 10. Specifically, as shown in fig. 2 and fig. 3, the position of the second pin 132 on the base 1 is located between the first pin 131 and the third pin 133, so that when the fourth hydraulic lever 10 is actuated, the included angle between the first linking lever 11 and the second linking lever 12 is changed. More specifically, as shown in fig. 2, when the included angle between the first linking rod 11 and the second linking rod 12 becomes smaller, the movable arm 2 will drive the second arm 3 and the third arm 4 to retract, and the bucket 6 is retracted accordingly. And when the included angle between the first linkage rod 11 and the second linkage rod becomes larger, the movable arm 2 drives the second arm 3 and the third arm 4 to horizontally extend forwards, so that long-distance river channel operation is realized.
In some embodiments, specifically, as shown in fig. 2 and 3, a third connecting seat 31 is provided on the second arm 3 on the same side relative to the second connecting seat 22, and a third hydraulic rod 9 is provided between the second connecting seat 22 and the third connecting seat 33; the second arm 3 and the third connecting seat 31 are positioned at the same side, and a fourth connecting seat 32 is further arranged; a sixth connecting seat 42 is arranged on the third arm 4 on the same side relative to the fourth connecting seat 32, and a second hydraulic rod 8 is arranged between the sixth connecting seat 42 and the fourth connecting seat 32; a fifth connecting seat 41 is arranged on the other side, opposite to the sixth connecting seat 42, of the third arm 4, a first hydraulic rod 7 is hinged to the fifth connecting seat 41, and the other end of the first hydraulic rod 7 is hinged to the bucket connecting piece 5. It can be seen that, in practice, the third hydraulic lever 9, the second hydraulic lever 8 and the first hydraulic lever 7 realize the actuation control of the second arm 3 and the third arm 4. There is room for improvement in the control of this part alone. In order to further increase the working distance. As shown in fig. 2 to 6, the bucket connecting member 5 includes a body (not labeled) and a linkage mechanism (not labeled) hinged to the body, the linkage mechanism includes a third linkage rod 51 and a fourth linkage rod 52, ends of which are hinged to each other through an eighth pin 57, and the other end of the third linkage rod 51 is hinged to the body through a fifth pin 54; the third arm 4 is hinged to the bucket connecting piece 5 through a fourth pin 53, a seventh connecting seat 43 is further disposed on a side edge of a hinged end of the third arm 4 and the bucket connecting piece 5, the seventh connecting seat 43 is located on the same side as the fifth connecting seat 41 and is hinged to the other end of the fourth linkage rod 52, and the first hydraulic rod 7 is hinged to a hinged position of the third linkage rod 51 and the fourth linkage rod 52, so that when the first hydraulic rod 7 is actuated, an included angle between the third linkage rod 51 and the fourth linkage rod 52 is changed. The third linking lever 51 and the fourth linking lever 52 are provided to have functions substantially similar to those of the first linking lever 11 and the second linking lever 12, and both realize the increase of the horizontal working distance by means of linking, and have certain stability. In a further improvement, as shown in fig. 3, preferably, the first linkage rod 11 and the second linkage rod 12 are symmetrically arranged and hinged by a same pin. Similarly, the third trace 51 and the fourth trace 52 may also be symmetrically disposed and hinged by an eighth pin 67.
In the present invention, as shown in fig. 2 and 3, it is preferable that the bucket 6 includes a bucket body 61 and a bucket digging portion 62 formed on one side of the bucket body 61, and a connecting portion 63 hinged to the bucket attachment 5 by a sixth pin 55 and a seventh pin 56 is provided on the bucket body 61 on the side opposite to the bucket digging portion 62. Since the bucket attachment 5 is in fact rotatable about the fourth pin shaft 53, the bucket 6 and the bucket attachment 5 are here connected by both the sixth pin shaft 55 and the seventh pin shaft 56, with the aim that there is no relative rotation between the two. In addition, since the bucket 6 is a main load component during operation and load is concentrated at the connection part 63 and the bucket body 61, in some embodiments, a reinforcing rib 64 is provided between the connection part 63 and the bucket body 61.
Fig. 4 to 6 show an exemplary structure of the bucket link according to the present invention, as shown in fig. 4 to 6, the bucket link may include a first side plate 501 and a second side plate 502 which are oppositely disposed, the first side plate 501 and the second side plate 502 have the same structure, an intermediate plate 504 is disposed between the first side plate 501 and the second side plate 502, a vertical mounting plate 505 is disposed perpendicular to the plate surface of the intermediate plate 504, a rotation connection hole 5051 is disposed on the vertical mounting plate 505 for an angle-adjustable connection of a rotation connection mechanism 503, and the rotation connection mechanism 503 is rotatably engaged with the seventh pin 56 and a tenth pin 5038 respectively. The tenth pin 5038 is hinged between the first side plate 501 and the second side plate 502. Taking the first side plate 501 as an example, as shown in fig. 5, in this embodiment, actually, the first side plate 501 includes a top plate 5011 and a bottom plate 5012, and the bayonets are disposed on the bottom plate 5012, specifically, the first side plate 501 is disposed with a first bayonet 50121 and a second bayonet 50122, wherein the first bayonet 50121 is inclined upward to fit the sixth pin 55, and the first bayonet 50121 is inclined downward to fit the seventh pin 56.
Still further, specifically, the rotating connection mechanism 503 includes a sleeve 5034, and a first ball head connector 5031 and a second ball head connector 5032 respectively inserted into two ends of the sleeve 5034, where the first ball head connector 5031 is rotatably connected to the vertical mounting plate 505, the second ball head connector 5032 is rotatably connected to a rotatable connector 5035, the rotatable connector is rotatably fixed between the first side plate 501 and the second side plate 502 by a ninth pin 5037, and two ends of the rotatable connector are respectively configured to be capable of engaging with the seventh pin 56 and the tenth pin 5038. In other modifications, as shown in fig. 5, a spring 5033 may be further disposed in the sleeve 5034, and the spring may dynamically change the distance between the first ball joint 5031 and the second ball joint 5032 when the bucket joint 5 rotates, so that the seventh pin 56 rotates smoothly and the bucket 6 is lifted or lowered smoothly. Still further, as shown in fig. 5, a limiting protrusion 50351 may be further disposed on the rotatable connector 5035 to prevent an accidental situation caused by a loose occlusion, and referring to fig. 5, the limiting protrusion 50351 is specifically inclined toward the tenth pin 5038, and when the loose occlusion occurs, the limiting protrusion 50351 may be locked with the tenth pin 5038. On the other hand, the seventh pin 56 is specifically adapted to the second bayonet 50122, in order to prevent the portion from being separated, the rotatable connector 5035 is located at one side of the second bayonet 50122 and is provided with a bent portion 50352, and the bent portion 50352 is matched with the second bayonet 50122 to form a relatively narrow outlet, so that the seventh pin 56 is difficult to be separated.
While there has been described what are believed to be the preferred embodiments of the present invention, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the principles of the invention, and it is intended to cover all such changes and modifications as fall within the true scope of the invention.
Claims (10)
1. The movable arm of the long-distance excavator is suitable for river channel operation, one end of the movable arm is hinged with a base through a first pin shaft, the other end of the movable arm is hinged with the end part of a second arm, the other end of the second arm is hinged with one end part of a third arm, the free end of the third arm is connected with a bucket through a bucket connecting piece, a second connecting seat is arranged on one side edge of the hinged end of the movable arm and the base, a first connecting seat is arranged close to the middle part of the other side edge of the movable arm relative to the second connecting seat, a second linkage rod is hinged to the first connecting seat, the free end of the second linkage rod is hinged with a first linkage rod, and the free end of the first linkage rod is rotatably connected to the base through a third pin shaft; the base is hinged to the first linkage rod through a first pin shaft, and the base is hinged to the second linkage rod through a second pin shaft.
2. The long-distance excavator movable arm suitable for river channel operation of claim 1, wherein the second pin is located between the first pin and the third pin on the base, so that when the fourth hydraulic rod is actuated, an included angle between the first linkage rod and the second linkage rod is changed.
3. The long-distance excavator movable arm suitable for river channel operation of claim 1, wherein a third connecting seat is arranged on the second arm on the same side relative to the second connecting seat, and a third hydraulic rod is arranged between the second connecting seat and the third connecting seat; the second arm and the third connecting seat are positioned on the same side, and a fourth connecting seat is further arranged on the second arm; a sixth connecting seat is arranged on the third arm at the same side relative to the fourth connecting seat, and a second hydraulic rod is arranged between the sixth connecting seat and the fourth connecting seat; and a fifth connecting seat is arranged on the other side, opposite to the sixth connecting seat, of the third arm, a first hydraulic rod is hinged to the fifth connecting seat, and the other end of the first hydraulic rod is hinged to the bucket connecting piece.
4. The long-distance excavator movable arm suitable for river channel operation as claimed in claim 3, wherein the bucket connecting member comprises a body and a linkage mechanism hinged to the body, the linkage mechanism comprises a third linkage rod and a fourth linkage rod, the ends of the third linkage rod and the fourth linkage rod are hinged to each other through an eighth pin shaft, and the other end of the third linkage rod is hinged to the body through a fifth pin shaft; the third arm is hinged to the bucket connecting piece through a fourth pin shaft, a seventh connecting seat is further arranged on the side edge of the hinged end of the third arm and the bucket connecting piece, the seventh connecting seat is on the same side as the fifth connecting seat and is hinged to the other end of the fourth linkage rod, and the first hydraulic rod is hinged to the hinged position of the third linkage rod and the fourth linkage rod, so that when the first hydraulic rod actuates, an included angle between the third linkage rod and the fourth linkage rod is changed.
5. The long distance excavator boom suitable for river course working as claimed in claim 1, wherein the bucket comprises a bucket body and a bucket digging part formed at one side of the bucket body, and a connecting part hinged to the bucket connecting member by a sixth pin and a seventh pin is provided at the bucket body at the side opposite to the bucket digging part.
6. The long-distance excavator boom suitable for the river work according to claim 5, wherein a reinforcing rib is provided between the connecting portion and the bucket body.
7. The long-distance excavator movable arm suitable for river channel operation as claimed in claim 1, wherein the first linkage rod and the second linkage rod are symmetrically arranged and hinged through the same pin.
8. The long-distance excavator movable arm suitable for river channel operation as claimed in claim 4, wherein the third linkage and the fourth linkage are symmetrically arranged and hinged through an eighth pin.
9. The long-distance excavator boom suitable for river course operation of claim 4, wherein the bucket connecting member comprises a first side plate and a second side plate which are oppositely arranged, the first side plate and the second side plate are identical in structure, a middle plate is arranged between the first side plate and the second side plate, a vertical mounting plate is arranged perpendicular to the surface of the middle plate, and an angle-adjustable rotation connecting mechanism is connected to the vertical mounting plate and is rotatably meshed with the seventh pin shaft and a tenth pin shaft respectively.
10. The long reach excavator boom suitable for use in river operations of claim 9, wherein said rotatable connection mechanism comprises a sleeve and a first ball joint member and a second ball joint member inserted into two ends of said sleeve, respectively, said first ball joint member being rotatably connected to said vertical mounting plate, said second ball joint member being rotatably connected to a rotatable connection member, two ends of said rotatable connection member being rotatably engaged with said seventh pin and a tenth pin, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761721.XA CN111827380A (en) | 2020-07-31 | 2020-07-31 | Long-distance excavator movable arm suitable for river course operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761721.XA CN111827380A (en) | 2020-07-31 | 2020-07-31 | Long-distance excavator movable arm suitable for river course operation |
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| CN111827380A true CN111827380A (en) | 2020-10-27 |
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| CN202010761721.XA Pending CN111827380A (en) | 2020-07-31 | 2020-07-31 | Long-distance excavator movable arm suitable for river course operation |
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| US5584643A (en) * | 1992-09-30 | 1996-12-17 | Kabushiki Kaisha Komatsu Seisakusho | Working tool unit of construction machine |
| EP1245739A1 (en) * | 2001-03-29 | 2002-10-02 | Groupe Mecalac | Construction machine |
| KR20090069564A (en) * | 2007-12-26 | 2009-07-01 | 주식회사 에버다임 | Attachment coupling device for heavy industrial equipment |
| CN201546246U (en) * | 2009-11-07 | 2010-08-11 | 李小祥 | Novel digging mechanism for loader-digger |
| CN102400696A (en) * | 2011-11-09 | 2012-04-04 | 三一重型装备有限公司 | Timbering machine and tunneling machine applying same |
| CN204401667U (en) * | 2014-10-30 | 2015-06-17 | 山东冠县鲁牛工程机械有限公司 | A kind of three joint arm wheel excavators |
| CN108442430A (en) * | 2018-04-10 | 2018-08-24 | 马鞍山市润启新材料科技有限公司 | A kind of foldable retractable excavator |
| CN211690485U (en) * | 2020-02-15 | 2020-10-16 | 山西阳城阳泰集团宇昌煤业有限公司 | Long-distance coal mine excavator arm |
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Application publication date: 20201027 |
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