CN112281974A - Excavator bucket with gear driven swinging and hydraulic enhanced excavating force - Google Patents
Excavator bucket with gear driven swinging and hydraulic enhanced excavating force Download PDFInfo
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- CN112281974A CN112281974A CN202011322587.XA CN202011322587A CN112281974A CN 112281974 A CN112281974 A CN 112281974A CN 202011322587 A CN202011322587 A CN 202011322587A CN 112281974 A CN112281974 A CN 112281974A
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- bucket
- gear
- connecting piece
- fixing plate
- bucket body
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
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- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
Abstract
The invention discloses a gear-driven swinging and hydraulic excavating force-enhanced bucket which comprises a bucket body, an upper fixing plate, a translational rack and a semicircular gear, wherein the semicircular gear is fixedly arranged on a gear central shaft, the translational rack is mutually meshed with the semicircular gear, and two ends of the translational rack are provided with a group of first hydraulic cylinders; the front side of the upper end of the bucket body is connected with a lower connecting piece, the front side of the lower end of the upper fixing plate is fixed with an upper connecting piece, the lower connecting piece is fixedly connected with a gear central shaft, and the gear central shaft penetrates through the upper connecting piece and can rotate relative to the upper connecting piece; the semicircular gear can rotate together with the gear central shaft under the driving of the translational rack, and simultaneously drives the bucket body to swing. The invention can lead the bucket to swing and can be used for more complicated working conditions in actual production; the enhancement of the excavating force is beneficial to the development of excavating work and improves the excavating efficiency; the optimized design of the bucket teeth and the blade plate structure can prolong the service life of the bucket and save the cost.
Description
Technical Field
The invention relates to a bucket driven by gears to swing and hydraulically enhancing excavating force, optimally designs the structure of a bucket tooth and blade plate assembly, and belongs to the technical field of engineering excavators.
Background
The bucket is an important part of the excavator, and the bucket rotates up and down to realize the functions of excavating materials and releasing the materials during working. The vertical rotation of the bucket mainly depends on the driving of a hydraulic oil cylinder on a movable arm, but when the bucket faces complex working conditions, the vertical rotation is limited, the bucket needs to swing left and right to enlarge working space, and the traditional bucket structure cannot meet the construction requirements. The main power for the bucket to work comes from a hydraulic oil cylinder on the movable arm, so that the excavating force is limited, and the working efficiency is low.
The edge plate assembly part with the edge plate and the bucket teeth connected through the welding seam directly bears the acting force of materials when the bucket works, and the position where the stress distribution of the bucket is complex is provided. The change of the angle of the blade plate influences the stress distribution of each component structure, the welding line belongs to the structure which is easy to damage in the blade plate assembly part, and the stress distribution of the welding line influences and determines the performance and the service life of the bucket.
Disclosure of Invention
Aiming at the defects of the technology, the invention aims to provide the excavator bucket which is driven by the gear to swing and hydraulically enhances the excavating force so as to realize the left-right swinging and enhance the excavating force.
A bucket driven by gears to swing and hydraulically enhance excavating force comprises a bucket body, an upper fixing plate, a translational rack and a semicircular gear, wherein the semicircular gear is fixedly arranged on a gear central shaft, the translational rack and the semicircular gear are mutually meshed, two ends of the translational rack are provided with a group of first hydraulic cylinders, one end of each first hydraulic cylinder is connected with the upper fixing plate, the other end of each first hydraulic cylinder is connected with the translational rack, and the first hydraulic cylinders are used for driving the translational rack to reciprocate in the horizontal direction; the front side of the upper end of the bucket body is connected with a lower connecting piece, the front side of the lower end of the upper fixing plate is fixed with an upper connecting piece, the lower connecting piece is fixedly connected with a gear central shaft, and the gear central shaft penetrates through the upper connecting piece and can rotate relative to the upper connecting piece; the semicircular gear can rotate together with the gear central shaft under the driving of the translational rack, and simultaneously drives the bucket body to swing.
Furthermore, a group of second hydraulic cylinders are arranged between the rear side of the upper end of the bucket body and the rear side of the lower end of the upper fixing plate, first rotating shafts are arranged between the second hydraulic cylinders and the upper fixing plate and between the second hydraulic cylinders and the bucket body, and second rotating shafts are arranged between the bucket body and the lower connecting piece.
Furthermore, a dust cover is arranged between the bucket body and the upper fixing plate, and the translational rack, the semicircular gear, the first hydraulic oil cylinder and the second hydraulic oil cylinder are all located in the dust cover.
Furthermore, the translation rack is connected with the upper fixing plate in a sliding block connection mode.
Furthermore, the lower end part of the bucket body is provided with a blade plate assembly part, the blade plate assembly part consists of a blade plate and bucket teeth welded with the front edge of the blade plate, and the front edge of the blade plate is an inclined plane. Preferably, the included angle between the inclined plane of the front edge of the blade plate and the vertical plane is 15-30 degrees.
Has the advantages that: according to the invention, the hydraulic oil cylinders are arranged at two ends of the translational rack, the rack can reciprocate left and right under the action of the hydraulic oil cylinders, and the semicircular gear is driven to rotate through gear transmission, so that the bucket can swing left and right, the working range of the bucket is expanded, and the bucket can be used in more complicated working conditions. The hydraulic oil cylinder arranged above the back of the bucket can be used as an additional power source of the bucket, and the bucket can obtain larger digging force and enlarge a digging range during working, so that the digging efficiency is improved. The optimized design of the structure of the blade plate assembly component can enable the welding seam to bear smaller stress, and the service life of the blade plate assembly component is prolonged, so that the service life of the excavator bucket is prolonged.
Drawings
FIG. 1 is a schematic view of a bucket construction;
FIG. 2 is a right side view of the bucket;
FIG. 3 is a front view of the bucket;
FIG. 4a is a schematic structural view of the blade plate assembly components;
FIG. 4b is a schematic view of the angle between the bevel and the vertical plane of the leading edge of the blade plate;
FIG. 5a is a weld stress distribution diagram corresponding to blade plate angles of 30 °, 60 °, and 90 °;
FIG. 5b is a weld stress distribution diagram corresponding to blade plate angles of 15 °, 30 °, and 45 °;
in the figure: 1-a bucket body, 2-a translation rack, 3-a semicircular gear, 4-a second hydraulic cylinder, 5-a first rotating shaft, 6-a first hydraulic cylinder, 7-a gear central shaft, 8-a lower connecting piece, 9-a second rotating shaft, 10-a dust cover, 11-an upper fixing plate and 12-an upper connecting piece; the included angle between the front inclined plane and the vertical plane of the alpha-edge plate, A-edge plate assembly part, A1-bucket tooth, A2-welding seam and A3-edge plate.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 3, a gear-driven swinging and hydraulic-force-enhanced excavating bucket comprises a bucket body 1, an upper fixing plate 11, a translational rack 2 and a semicircular gear 3, wherein the semicircular gear 3 is fixedly installed on a gear central shaft 7, the translational rack 2 is meshed with the semicircular gear 3, a group of first hydraulic cylinders 6 are arranged at two ends of the translational rack 2, one end of each first hydraulic cylinder 6 is connected with the upper fixing plate 11, the other end of each first hydraulic cylinder 6 is connected with the translational rack 2, and the first hydraulic cylinders 6 are used for driving the translational rack 2 to reciprocate in the horizontal direction; the front side of the upper end of the bucket body 1 is connected with a lower connecting piece 8, the front side of the lower end of an upper fixing plate 11 is fixed with an upper connecting piece 12, the lower connecting piece 8 is fixedly connected with a gear central shaft 7, and the gear central shaft 7 penetrates through the upper connecting piece 12 and can rotate relative to the upper connecting piece 12; the semicircular gear 3 can rotate together with the gear central shaft 7 under the driving of the translational rack 2, and simultaneously drives the bucket body 1 to swing.
The main power of the excavator bucket is from a hydraulic oil cylinder on an excavator movable arm. In the invention, a group of second hydraulic cylinders 4 are arranged between the rear side of the upper end of the bucket body 1 and the rear side of the lower end of the upper fixing plate 11, so that an additional power source is provided for the excavating force of the bucket, the bucket can be driven to act on a deeper position, and the excavating range is expanded. First rotating shafts 5 are arranged between the second hydraulic cylinder 4 and the upper fixing plate 11 and between the second hydraulic cylinder 4 and the bucket body 1, and second rotating shafts 9 are arranged between the bucket body 1 and the lower connecting piece 8.
A second rotating shaft 9 between the lower connecting piece 8 and the bucket body 1 can realize the up-and-down rotation of the bucket body 1, and the rotating direction is shown in fig. 2; the first rotating shaft 5 between the second hydraulic cylinder 4 and the bucket body 1 can help the bucket rotate by a larger angle in the process of hydraulic pressure enhancement; semicircle gear center pin 7 does not have the rotation with semicircle gear 3 and lower connecting piece 8 reciprocal anchorage, can drive the horizontal hunting of bucket body 1 when semicircle gear 3 rotates. Through the design of rotating shafts in different directions, the bucket can be better matched between vertical rotation and horizontal swing, and the working range of the bucket is remarkably expanded.
A dust cover 10 is arranged between the bucket body 1 and the upper fixing plate 11, and the translational rack 2, the semicircular gear 3, the first hydraulic oil cylinder 6 and the second hydraulic oil cylinder 4 are all located in the dust cover 10. Prevent that the material from getting into the inside gear structure and hydraulic cylinder of causing destruction of structure in the work progress.
The translation rack 2 is connected with the upper fixing plate 11 in a sliding block connection mode, and is installed from one side during installation, and the sliding block structure facilitates positioning and pre-installation of the translation rack 2.
The lower end of the bucket body 1 is provided with a blade plate assembly part, the blade plate assembly part A consists of a blade plate A3 and a bucket tooth A1 welded at the front edge of the blade plate, a welding seam A2 is arranged between the bucket tooth A1 and the blade plate A3, the front edge of the blade plate A3 is an inclined plane, correspondingly, the contact part of the bucket tooth A1 and the front edge inclined plane of the blade plate A3 is also an inclined plane, and the connecting surface of the welding seam A2 at the inclined plane with the bucket tooth A1 and the blade plate A3 is also an inclined plane.
Fig. 4a is a schematic diagram of a tooth and a partial blade in a blade assembly, and the included angle between the inclined plane of the leading edge of the blade and the vertical plane is defined as alpha as shown in fig. 4 b. When the blade plate assembly component is optimally designed, a finite element simulation method is adopted to determine the blade plate angle corresponding to the minimum stress distribution on the welding line. The invention simulates the welding stress distribution between one bucket tooth and a local blade plate, and mainly comprises the following steps:
a. establishing three-dimensional models of bucket teeth, blade plates and welding seams with different blade plate angles alpha;
b. carrying out finite element simulation on the established three-dimensional model under the same load condition;
c. and analyzing the result of the finite element analysis, and selecting the optimal welding seam angle.
The specific steps of establishing three-dimensional models of the bucket teeth, the blade plates and the welding seams with different blade plate angles are as follows:
(1) establishing a model, namely establishing a three-dimensional model according to shape parameters of the bucket teeth, the blade plate and the welding seam;
(2) and modifying the angle of the blade plate, and establishing bucket teeth, the blade plate and a weld joint model by respectively setting the angle of the blade plate at 30 degrees, 60 degrees and 90 degrees. Finite element simulation was performed on the established model under the same load, and the stress distribution on the weld was the smallest when the blade plate angle was 30 ° as shown in fig. 5 (a).
(3) According to the simulation result of the step (2), the blade plate angle is modified at intervals of 15 degrees by taking the blade plate angle of 30 degrees as a reference, a bucket tooth, the blade plate and a weld joint three-dimensional model are built, static analysis is carried out on the newly built three-dimensional model under the same load condition as that in the step (1), and the stress distribution result on the weld joint is shown in a figure 5 b.
The analysis simulation result shows that the stress distribution on the welding seam is as shown in figures 5a and 5b, the stress on the welding seam is the minimum when the angle of the blade plate is in the range of 15-30 degrees, and the whole structure is more stable. Alpha is the optimal parameter of the blade plate angle within the range of 15-30 degrees.
Claims (6)
1. The utility model provides a gear drive swing, hydraulic pressure reinforcing excavation force's bucket which characterized in that: the excavator bucket comprises an excavator bucket body (1), an upper fixing plate (11), a translation rack (2) and a semicircular gear (3), wherein the semicircular gear (3) is fixedly installed on a gear central shaft (7), the translation rack (2) is meshed with the semicircular gear (3), a group of first hydraulic cylinders (6) are arranged at two ends of the translation rack (2), one ends of the first hydraulic cylinders (6) are connected with the upper fixing plate (11), the other ends of the first hydraulic cylinders are connected with the translation rack (2), and the first hydraulic cylinders (6) are used for driving the translation rack (2) to reciprocate in the horizontal direction; the front side of the upper end of the bucket body (1) is connected with a lower connecting piece (8), the front side of the lower end of an upper fixing plate (11) is fixed with an upper connecting piece (12), the lower connecting piece (8) is fixedly connected with a gear central shaft (7), and the gear central shaft (7) penetrates through the upper connecting piece (12) and can rotate relative to the upper connecting piece (12); the semicircular gear (3) can rotate together with the gear central shaft (7) under the driving of the translational rack (2), and simultaneously drives the bucket body (1) to swing.
2. The gear driven oscillating, hydraulically enhanced digging force bucket according to claim 1 wherein: a group of second hydraulic cylinders (4) are arranged between the rear side of the upper end of the bucket body (1) and the rear side of the lower end of the upper fixing plate (11), first rotating shafts (5) are arranged between the second hydraulic cylinders (4) and the upper fixing plate (11) and between the second hydraulic cylinders (4) and the bucket body (1), and second rotating shafts (9) are arranged between the bucket body (1) and the lower connecting piece (8).
3. The gear driven oscillating, hydraulically enhanced digging force bucket according to claim 1 wherein: a dust cover (10) is arranged between the bucket body (1) and the upper fixing plate (11), and the translational rack (2), the semicircular gear (3), the first hydraulic oil cylinder (6) and the second hydraulic oil cylinder (4) are all located in the dust cover (10).
4. The gear driven oscillating, hydraulically enhanced digging force bucket according to claim 1 wherein: the translational rack (2) is connected with the upper fixing plate (11) in a sliding block connection mode.
5. The gear driven oscillating, hydraulically enhanced digging force bucket according to claim 1 wherein: the lower end part of the bucket body (1) is provided with a blade plate assembly part, the blade plate assembly part consists of a blade plate and bucket teeth welded at the front edge of the blade plate, and the front edge of the blade plate is an inclined plane.
6. The gear driven oscillating, hydraulically enhanced digging force bucket according to claim 5 wherein: the included angle between the inclined plane of the front edge of the blade plate and the vertical plane is 15-30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322587.XA CN112281974A (en) | 2020-11-23 | 2020-11-23 | Excavator bucket with gear driven swinging and hydraulic enhanced excavating force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011322587.XA CN112281974A (en) | 2020-11-23 | 2020-11-23 | Excavator bucket with gear driven swinging and hydraulic enhanced excavating force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112281974A true CN112281974A (en) | 2021-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011322587.XA Pending CN112281974A (en) | 2020-11-23 | 2020-11-23 | Excavator bucket with gear driven swinging and hydraulic enhanced excavating force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112281974A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU220257U1 (en) * | 2023-05-03 | 2023-09-05 | Публичное акционерное общество "Северсталь" (ПАО "Северсталь") | Bucket wear element |
| CN116791696A (en) * | 2023-08-15 | 2023-09-22 | 徐州巴特工程机械股份有限公司 | Multifunctional hydraulic wrist for single-machine multifunctional excavator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2732841Y (en) * | 2004-10-18 | 2005-10-12 | 王永昌 | Device for enlarging the rotation angle of excavator arm |
| JP2008095380A (en) * | 2006-10-12 | 2008-04-24 | Hokuto:Kk | Cutting device and cutting machine |
| CN204475389U (en) * | 2015-01-27 | 2015-07-15 | 莱芜致恒机械制造有限公司 | A kind of multi-faceted bucket |
| CN105431597A (en) * | 2014-06-02 | 2016-03-23 | 株式会社小松制作所 | Construction machine control system, construction machine, and construction machine control method |
| CN205776438U (en) * | 2016-04-29 | 2016-12-07 | 徐州巴特工程机械股份有限公司 | Novel swing bucket |
| CN111472411A (en) * | 2020-04-16 | 2020-07-31 | 徐州巴特工程机械股份有限公司 | Excavator bucket cutting edge plate protection structure |
| CN111809673A (en) * | 2020-08-12 | 2020-10-23 | 泉州市劲力工程机械有限公司 | Rotary bucket assembly for excavator and excavator |
-
2020
- 2020-11-23 CN CN202011322587.XA patent/CN112281974A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2732841Y (en) * | 2004-10-18 | 2005-10-12 | 王永昌 | Device for enlarging the rotation angle of excavator arm |
| JP2008095380A (en) * | 2006-10-12 | 2008-04-24 | Hokuto:Kk | Cutting device and cutting machine |
| CN105431597A (en) * | 2014-06-02 | 2016-03-23 | 株式会社小松制作所 | Construction machine control system, construction machine, and construction machine control method |
| CN204475389U (en) * | 2015-01-27 | 2015-07-15 | 莱芜致恒机械制造有限公司 | A kind of multi-faceted bucket |
| CN205776438U (en) * | 2016-04-29 | 2016-12-07 | 徐州巴特工程机械股份有限公司 | Novel swing bucket |
| CN111472411A (en) * | 2020-04-16 | 2020-07-31 | 徐州巴特工程机械股份有限公司 | Excavator bucket cutting edge plate protection structure |
| CN111809673A (en) * | 2020-08-12 | 2020-10-23 | 泉州市劲力工程机械有限公司 | Rotary bucket assembly for excavator and excavator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU220257U1 (en) * | 2023-05-03 | 2023-09-05 | Публичное акционерное общество "Северсталь" (ПАО "Северсталь") | Bucket wear element |
| CN116791696A (en) * | 2023-08-15 | 2023-09-22 | 徐州巴特工程机械股份有限公司 | Multifunctional hydraulic wrist for single-machine multifunctional excavator |
| CN116791696B (en) * | 2023-08-15 | 2023-12-08 | 徐州巴特工程机械股份有限公司 | Multifunctional hydraulic wrist for single-machine multifunctional excavator |
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