CN107558512B - All-round multi-functional tunnelling arm - Google Patents
All-round multi-functional tunnelling arm Download PDFInfo
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- CN107558512B CN107558512B CN201710848312.1A CN201710848312A CN107558512B CN 107558512 B CN107558512 B CN 107558512B CN 201710848312 A CN201710848312 A CN 201710848312A CN 107558512 B CN107558512 B CN 107558512B
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Abstract
The invention relates to an all-directional multifunctional tunneling arm which comprises a connecting frame, a large arm, a rotary excavating arm, a small arm and a bucket; the front end of the large arm is connected with the rear end of the rotary excavating arm, the rear end of the large arm is connected with an excavator through a connecting frame, and a connecting assembly is arranged in the middle of the large arm; one end of the first hydraulic rod is hinged with the connecting component, and the other end of the first hydraulic rod is hinged with the connecting frame; the front end of the rotary excavating arm is connected with the rear end of the small arm, and the front end of the small arm is connected with the bucket. The big arm is connected with the excavator body through the connecting frame and then connected with the small arm through the rotary excavating arm, the first hydraulic rod is used for adjusting the angle of the elevation angle of the big arm, and the small arm drives the bucket to complete various excavating operations. The omnibearing multifunctional tunneling arm has the advantages of flexible operation, high working efficiency and large working range.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to an all-directional multifunctional tunneling arm.
Background
The excavator is important mechanical equipment in engineering construction, and the excavating arm is important accessory equipment of the excavator. The traditional tunneling arm has poor operation flexibility due to unreasonable structural design, and cannot complete the excavation task of a transverse trench or a lateral trench in a tunnel or some construction sites with small operation space.
Disclosure of Invention
The invention aims to provide an omnibearing multifunctional tunneling arm which is used for solving the defects of unreasonable structural design, poor operation flexibility, low working efficiency and small working range of the existing tunneling arm.
In order to achieve the aim, the invention provides an omnibearing multifunctional tunneling arm which comprises a connecting frame, a large arm, a rotary excavating arm, a small arm and a bucket; the front end of the large arm is connected with the rear end of the rotary excavating arm, the rear end of the large arm is connected with the connecting frame, and the middle part of the large arm is provided with a connecting assembly; the connecting assembly is connected with the connecting frame through a first hydraulic rod; the front end of the rotary excavating arm is connected with the rear end of the small arm, the front end of the small arm is connected with the bucket, and the connecting frame is hinged to an excavator body through a main shaft on the connecting frame; one ends of the two large-arm steering hydraulic rods are respectively hinged to two sides of the connecting frame, and the other ends of the two large-arm steering hydraulic rods are respectively hinged to the excavator body.
Preferably, the large arm comprises a main arm, a steering connecting frame and a second hydraulic rod; the rear end of the steering connecting frame is hinged to the front end of the main arm, the front end of the steering connecting frame is connected with the rear end of the rotary excavating arm, a connecting shaft is arranged on the steering connecting frame, one end of the second hydraulic rod is hinged to the middle of the connecting shaft, and the other end of the second hydraulic rod is hinged to the middle of the large arm.
Preferably, the slewing excavating arm comprises a large arm connecting device, a small arm connecting device and a steering device; the front end of the large arm connecting device is connected with the rear end of the steering device, and the rear end of the large arm connecting device is hinged with the front end of the steering connecting frame; the front end of the steering device is connected with the rear end of the small arm connecting device, and the steering device can drive the small arm connecting device to axially rotate; the front end of the small arm connecting device is connected with the rear end of the small arm.
Preferably, the large arm further comprises two rotary hydraulic rods, one ends of the two rotary hydraulic rods are hinged to two ends of the connecting shaft, and the other ends of the two rotary hydraulic rods are respectively hinged to the upper part of the large arm connecting device.
Preferably, the axes of the two rotary hydraulic rods form an included angle.
Preferably, the small arm comprises a fixed arm, a telescopic arm, a third hydraulic rod and a fourth hydraulic rod; the rear end of the fixed arm is hinged with the front end of the small arm connecting device; the telescopic arm is positioned in the fixed arm and can linearly extend or retract relative to the fixed arm, and the front end of the telescopic arm is hinged with the bucket; the third hydraulic rod is positioned in the telescopic arm, one end of the third hydraulic rod is hinged to the rear end of the fixed arm, and the other end of the third hydraulic rod is hinged to the front end of the telescopic arm; one end of the fourth hydraulic rod is hinged to the middle of the fixed arm, and the other end of the fourth hydraulic rod is hinged to the small arm connecting device.
Preferably, the cross sections of the fixed arm and the telescopic arm are both rectangular.
Preferably, the oil cylinder of the first hydraulic rod is hinged to the connecting frame, and the piston rod of the first hydraulic rod is hinged to the connecting assembly.
The invention has the following advantages: the big arm is connected with the excavator body through the connecting frame and then connected with the small arm through the rotary excavating arm, the first hydraulic rod is used for adjusting the angle of the elevation angle of the big arm, and the small arm drives the bucket to complete various excavating operations. The omnibearing multifunctional tunneling arm has the advantages of flexible operation, high working efficiency and large working range.
Drawings
Fig. 1 is a schematic structural view of the omnidirectional multifunctional tunneling arm.
Fig. 2 is a front view of the revolving excavating arm of the present invention.
Fig. 3 is a side view of the swivel digging arm of the present invention.
Fig. 4 is a schematic cross-sectional view of a revolving excavating arm of the present invention.
Fig. 5 is a schematic structural view of the steering apparatus of the present invention.
Fig. 6 is a schematic diagram of a transverse cross-sectional structure of the forearm of the invention.
Fig. 7 is a schematic longitudinal sectional view of the forearm of the invention.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the all-directional multifunctional arm for excavating comprises a connecting frame 1, a boom 2, a revolving excavating arm 3, a small arm 4 and a bucket 5. The large arm 2 is connected with an excavator body through the connecting frame 1 and then connected with the small arm 4 through the rotary excavating arm 3, the first hydraulic rod 22 is used for adjusting the angle of the elevation angle of the large arm 2, and the small arm 4 drives the bucket 5 to complete various excavating operations. The omnibearing multifunctional tunneling arm has the advantages of flexible operation, high working efficiency and large working range.
As shown in fig. 2, 3, 4, 5, 6 and 7, the connecting frame 1 is used for connecting the boom 2 with the excavator body, and the connecting frame 1 is hinged with the excavator body through a main shaft (not shown). Piston rods of two large-arm steering hydraulic rods (not shown) are respectively hinged on two sides of the connecting frame 1, and oil cylinders of the two large-arm steering hydraulic rods are respectively hinged on the excavator body. The large arm 2 swings left and right around the main shaft by controlling the extension and contraction of the piston rods of the two large arm steering hydraulic rods, so that the direction of the large arm 2 is changed without adjusting the direction of the excavator.
The boom 2 includes a main arm 23, a bogie 24, and a second hydraulic rod 25. The rear end of the main arm 23 is hinged to the connecting frame 1, the connecting assembly 21 is welded in the middle of the main arm 23, the piston rod of the first hydraulic rod 22 is hinged to the connecting assembly 21, the oil cylinder of the first hydraulic rod 22 is hinged to the connecting frame 1, and the main arm 23 swings around the hinged point of the main steering arm 23 and the connecting frame 1 by controlling the expansion and contraction of the piston rod of the first hydraulic rod 22. The rear end of the steering connecting frame 24 is hinged to the front end of the main arm 23, the front end of the steering connecting frame 24 is hinged to the rear end of the large arm connecting device 31 through a large arm main shaft, and the steering connecting frame 24 is provided with a connecting shaft 241. The piston rod of the second hydraulic rod 25 is hinged to the middle of the connecting shaft 241, and the oil cylinder of the second hydraulic rod 25 is hinged to the middle of the main arm 23. By controlling the extension and contraction of the piston rod of the second hydraulic rod 25, the steering connecting frame 24 drives the rotary excavating arm 3 and the small arm 4 to swing around the hinge point of the steering connecting frame 24 and the main arm 23. The large arm 2 and the small arm 4 can swing through the matching of the first hydraulic rod 22 and the second hydraulic rod 25, so that the flexibility of the all-directional multifunctional tunneling arm is increased.
Further, in order to increase the flexibility of the omnidirectional multifunctional tunneling arm, in this embodiment, the large arm 2 further includes two rotary hydraulic rods 26, the cylinders of the two rotary hydraulic rods 26 are hinged at two ends of the connecting shaft 241, and the piston rods of the two rotary hydraulic rods 26 are respectively hinged at the upper part of the large arm connecting device 31 through two steering shafts 320. The swing of the swing excavating arm 3, the arm 4 and the bucket 5 can be performed by controlling the extension and contraction of the piston rods of the two swing hydraulic rods 26.
The slewing excavating arm 3 comprises a boom attachment 31, a forearm attachment 32 and a steering device 33. The front end of the large arm connection is connected with the rear end of the steering device 33, and the front end of the steering device 33 is connected with the rear end of the small arm connection device 32. The front end of the small arm connecting device 32 is hinged with the rear end of the fixed arm and the cylinder of the fourth hydraulic rod 44 respectively. The steering device 33 is used for driving the small arm connecting device 32 to axially rotate, and the steering device 33 comprises a motor 331 and a speed reducer 332. The motor 331 is a hydraulic motor, and the motor 331 is connected to a hydraulic pump of the excavating arm through a pipeline, and the motor 331 is powered by the hydraulic pump. The motor 331 can drive the speed reducer 332 to rotate, and the speed reducer 332 drives the small arm connecting device 32 to axially rotate.
The boom connecting device 31 is used for connecting the boom 2 and the steering device 33, and the boom connecting device 31 includes a fixing plate 311, a first connecting plate 313, a second connecting plate 314, a third connecting plate 315, a fourth connecting plate 316, a fifth connecting plate 317, a boom main shaft 318, a sleeve 319, and two steering shafts 320. The fixing plate 311 has a square plate-shaped structure, a mounting hole 312 is formed in the fixing plate 311, the mounting hole 312 is located between the first connecting plate 313 and the second connecting plate 314, the mounting hole 312 is a circular hole, the outer diameter of the motor 331 matches the inner diameter of the mounting hole 312, the stator of the motor 331 is inserted into the mounting hole 312, and the fixing ring 333 of the motor 331 is fixedly mounted on the edge of the mounting hole 312 through bolts. In order to protect the rotating device, in this embodiment, a sleeve 319 is further provided, the sleeve 319 is annularly surrounded on the circumference of the power output end of the speed reducer 332, and the sleeve 319 is fixedly connected to the other surface of the fixing plate 311. The first connecting plate 313 and the second connecting plate 314 are identical in shape and have special-shaped plate-shaped structures, and the first connecting plate 313 and the second connecting plate 314 are vertically and fixedly connected to one surface of the fixing plate 311 and are parallel to each other. In this embodiment, the fixed connections are all welds. The fifth connecting plate 317 is a rectangular plate-shaped structure, the fifth connecting plate 317 is vertically and fixedly connected between the first connecting plate 313 and the second connecting plate 314, and the third connecting plate 315 and the fourth connecting plate 316 are vertically and fixedly connected to one surface of the fixing plate 311 and are parallel to the fifth connecting plate 317. One surface of the third connecting plate 315 is fixedly connected to one end of the first connecting plate 313 and one end of the second connecting plate 314, respectively, and the structural strength of the boom connecting apparatus 31 is increased by the interconnection of the four connecting plates. An upper arm spindle 318 is rotatably mounted between third link plate 315 and fifth link plate 317, and the axis of upper arm spindle 318 is perpendicular to third link plate 315 and fifth link plate 317. Two steering shafts 320 are rotatably mounted between the third connecting plate 315 and the fourth connecting plate 316, and the piston rods of the two rotary hydraulic rods are respectively hinged to the two steering shafts 320.
The arm connecting means 32 is used to connect the arm 4 with the steering means 33. The forearm connecting means 32 comprises a connecting tube 321, a steering plate 322, a first steering link plate 323, a second steering link plate 324, a forearm spindle 325 and a forearm steering shaft 326. The connecting pipe 321 is tubular, one end of the connecting pipe 321 extends radially inward to form an inner connecting ring 327 of an annular structure, the other end of the connecting pipe 321 extends radially outward to form an outer connecting ring 328 of the annular structure, a power output end of the speed reducer 332 is inserted into the connecting pipe 321 and is fixedly connected with the inner connecting ring 327 through a bolt, and the outer connecting ring 328 of the connecting pipe 321 is fixedly installed on one surface of the steering plate 322 through a bolt. While the power output end of the speed reducer 332 is actually connected with the steering plate 322 through the connecting pipe 321, the connecting pipe 321 is matched with the sleeve 319 to form a cylindrical shell to protect the steering device 33 from being corroded by soil and rain. The steering plate 322 has a profiled plate-like structure. The first and second steering link plates 323 and 324 have a right-angled trapezoidal plate-like structure, the first and second steering link plates 323 and 324 are fixedly connected to the other side of the steering link plate 322 in a perpendicular manner, the first and second steering link plates 323 and 324 are parallel, and the forearm main shaft 325 and the forearm steering shaft 326 are rotatably mounted between the first and second steering link plates 323 and 324. The cylinders of the fixed arm and the fourth hydraulic rod 44 are respectively hinged on the small arm main shaft 325 and the small arm steering shaft 326. The boom 4 is swung around the boom main shaft 325 by controlling the piston rod of the fourth hydraulic rod 44 to extend and retract. Therefore, the flexibility of the small arm 4 of the excavator is further improved, and the small arm 4 of the excavator is ensured to assist the bucket 5 to complete the dead angle which cannot be reached by the existing excavator.
The small arm 4 includes a fixed arm 41, a telescopic arm 42, a third hydraulic lever 43, and a fourth hydraulic lever 44. The telescopic arm 42 comprises a sliding arm 421 and a driven arm 422, the fixed arm 41 and the sliding arm 421 are both a longitudinally extending cylindrical structure, and the transverse cross-sectional shapes of the fixed arm 41 and the sliding arm 421 are the same. In the present embodiment, the transverse cross-sections of the fixed arm 41 and the sliding arm 421 are both rectangular, but may be trapezoidal or have other shapes. The sliding arm 421 is disposed in the fixing arm 41 and can be linearly extended or retracted relative to the fixing arm 41. The driven arm 422 is an elongated U-shaped groove, the driven arm 422 is disposed above the fixed arm 41 in the longitudinal direction, and the front end of the driven arm 422 is connected to the front end of the sliding arm 421. The driven arm 422 is arranged, so that the structural strength of the sliding arm 421 is improved, and the sliding arm 421 is prevented from being deformed due to overlarge stress in the excavating process of the excavator. Two longitudinal edges of the upper surface of the fixing arm 41 extend transversely to form two sliding rails 411. The rear end of the driven arm 422 is slidably mounted above the fixed arm 41 by a slider 412 caught on two slide rails 411. The slider 412 has a U-shaped cross section, and the sliders 412 are fixedly mounted on both sides of the follower arm 422 by bolts, respectively. By providing the slider 412 at the rear end of the driven arm 422, the driven arm 422 and the slide arm 421 slide more smoothly, wear between the slide arm 421 and the fixed arm 41 is reduced, and the life of the retractable excavating arm is extended. The third hydraulic rod 43 is arranged inside the sliding arm 421, the piston rod of the first hydraulic rod 22 is hinged with the rear end of the fixed arm 41, and the oil cylinder of the third hydraulic rod 43 is hinged with the front end of the sliding arm 421. The telescopic arm 42 is controlled to stretch by controlling the piston rod of the third hydraulic rod 43 to stretch, so that the length of the digging arm is increased, the working range of the digging arm of the excavator is enlarged, and the length of the small arm 4 can be flexibly controlled by a driver according to the construction requirement. The piston rod of the fourth hydraulic rod 44 is hinged in the middle of the fixed arm 41, and the cylinder of the fourth hydraulic rod 44 is hinged with the small arm connecting device 32. The swing of the small arm 4 around the hinge point of the fixed arm 41 and the small arm connecting device 32 is realized by controlling the extension and contraction of the piston rod of the fourth hydraulic rod 44.
Further, in order to enhance the flexibility of the bucket 5, in the present embodiment, the arm 4 further includes a fifth hydraulic lever 45. The oil cylinder of the fifth hydraulic rod 45 is hinged to the rear end of the driven arm 422, the piston of the fifth hydraulic rod 45 is hinged to the bucket 5, the bucket 5 is hinged to the front end of the sliding arm 421, and the bucket 5 is controlled to swing around the hinged point of the bucket 5 and the sliding arm 421 by controlling the extension and retraction of the piston rod of the fifth hydraulic rod 45.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (5)
1. An omnibearing multifunctional tunneling arm comprises a connecting frame, a big arm, a rotary excavating arm, a small arm and a bucket; the excavator is characterized in that the front end of the large arm is connected with the rear end of the rotary excavating arm, the rear end of the large arm is connected with the connecting frame, and the middle part of the large arm is provided with a connecting assembly; the connecting assembly is connected with the connecting frame through a first hydraulic rod; the front end of the rotary excavating arm is connected with the rear end of the small arm, the front end of the small arm is connected with the bucket, and the connecting frame is hinged to an excavator body through a main shaft on the connecting frame; one ends of the two large-arm steering hydraulic rods are respectively hinged to two sides of the connecting frame, and the other ends of the two large-arm steering hydraulic rods are respectively hinged to the excavator body;
the large arm comprises a main arm, a steering connecting frame and a second hydraulic rod; the rear end of the steering connecting frame is hinged to the front end of the main arm, the front end of the steering connecting frame is connected with the rear end of the rotary excavating arm, a connecting shaft is arranged on the steering connecting frame, one end of the second hydraulic rod is hinged to the middle of the connecting shaft, and the other end of the second hydraulic rod is hinged to the middle of the large arm;
the rotary excavating arm comprises a large arm connecting device, a small arm connecting device and a steering device; the front end of the large arm connecting device is connected with the rear end of the steering device, and the rear end of the large arm connecting device is hinged with the front end of the steering connecting frame; the front end of the steering device is connected with the rear end of the small arm connecting device, and the steering device can drive the small arm connecting device to axially rotate; the front end of the small arm connecting device is connected with the rear end of the small arm;
the large arm also comprises two rotary hydraulic rods, one ends of the two rotary hydraulic rods are respectively hinged to two ends of the connecting shaft, and the other ends of the two rotary hydraulic rods are respectively hinged to the upper part of the large arm connecting device;
the large arm connecting device comprises a fixed plate, a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate, a fifth connecting plate, a large arm main shaft, a sleeve and two steering shafts, wherein the fixed plate is of a square plate-shaped structure, the fixed plate is provided with a mounting hole, the mounting hole is positioned between the first connecting plate and the second connecting plate, the mounting hole is a circular hole, the outer diameter of the motor is matched with the inner diameter of the mounting hole, a stator of the motor is inserted into the mounting hole, a fixing ring of the motor is fixedly mounted at the edge of the mounting hole through a bolt, the sleeve is annularly wound on the circumferential direction of a power output end of the speed reducer, the sleeve is fixedly connected to the other side of the fixed plate, the first connecting plate and the second connecting plate are identical in shape and are of special-shaped plate-shaped structures, the first connecting plate and the second connecting plate are vertically and fixedly connected to one side of the fixed plate and are parallel, and the fifth connecting plate is of a rectangular plate-shaped structure, the third connecting plate and the fourth connecting plate are perpendicularly and fixedly connected between the first connecting plate and the second connecting plate, the third connecting plate and the fourth connecting plate are perpendicularly and fixedly connected to one face of the fixing plate and parallel to the fifth connecting plate, one face of the third connecting plate is fixedly connected with one end of the first connecting plate and one end of the second connecting plate respectively, the large-arm spindle is rotatably installed between the third connecting plate and the fifth connecting plate, the axis of the large-arm spindle is perpendicular to the third connecting plate and the fifth connecting plate, the two steering shafts are rotatably installed between the third connecting plate and the fourth connecting plate, and piston rods of the two rotary hydraulic rods are hinged to the two steering shafts respectively.
2. An omni-directional multifunctional ripping arm according to claim 1, wherein the axes of the two rotary hydraulic rams are at an angle.
3. The omni-directional multifunctional ripping arm according to claim 1, wherein the small arm includes a fixed arm, a telescopic arm, a third hydraulic rod, and a fourth hydraulic rod; the rear end of the fixed arm is hinged with the front end of the small arm connecting device; the telescopic arm is positioned in the fixed arm and linearly extends or retracts relative to the fixed arm, and the front end of the telescopic arm is hinged with the bucket; the third hydraulic rod is positioned in the telescopic arm, one end of the third hydraulic rod is hinged to the rear end of the fixed arm, and the other end of the third hydraulic rod is hinged to the front end of the telescopic arm; one end of the fourth hydraulic rod is hinged to the middle of the fixed arm, and the other end of the fourth hydraulic rod is hinged to the small arm connecting device.
4. An all directional multifunctional ripping arm according to claim 3, wherein the fixed arm and the telescoping arm are both rectangular in cross-section.
5. The omni-directional multifunctional tunneling arm according to claim 1, wherein the cylinder of the first hydraulic rod is hinged to the connecting frame, and the piston rod of the first hydraulic rod is hinged to the connecting assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710848312.1A CN107558512B (en) | 2017-09-19 | 2017-09-19 | All-round multi-functional tunnelling arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710848312.1A CN107558512B (en) | 2017-09-19 | 2017-09-19 | All-round multi-functional tunnelling arm |
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| Publication Number | Publication Date |
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| CN107558512A CN107558512A (en) | 2018-01-09 |
| CN107558512B true CN107558512B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710848312.1A Active CN107558512B (en) | 2017-09-19 | 2017-09-19 | All-round multi-functional tunnelling arm |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109706995A (en) * | 2019-01-23 | 2019-05-03 | 山西德源宏泰科技有限公司 | Flat shovel and excavator with same |
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| CN1104282A (en) * | 1992-07-27 | 1995-06-28 | 吉尔摩运输服务有限公司 | Coupling for heavy-duty machine |
| JP2006307498A (en) * | 2005-04-27 | 2006-11-09 | Toyota Industries Corp | Work vehicle and skid steering loader |
| CN103266639A (en) * | 2013-05-27 | 2013-08-28 | 陈景华 | Hydraulic excavator swing arm structure |
| CN103696450A (en) * | 2013-12-18 | 2014-04-02 | 许世东 | Repairing machine for broken loading roadway for coal mine |
| CN106638735A (en) * | 2015-11-02 | 2017-05-10 | 宜昌长兴机械制造有限公司 | Excavator mechanical arm and multi-function excavator |
| CN207244690U (en) * | 2017-09-19 | 2018-04-17 | 北京迈弛科技发展有限公司 | A kind of all direction multifunctional tunnels arm |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2002125C2 (en) * | 2008-07-14 | 2010-01-18 | Hudson Bay Holding B V | Mobile device. |
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2017
- 2017-09-19 CN CN201710848312.1A patent/CN107558512B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104282A (en) * | 1992-07-27 | 1995-06-28 | 吉尔摩运输服务有限公司 | Coupling for heavy-duty machine |
| JP2006307498A (en) * | 2005-04-27 | 2006-11-09 | Toyota Industries Corp | Work vehicle and skid steering loader |
| CN103266639A (en) * | 2013-05-27 | 2013-08-28 | 陈景华 | Hydraulic excavator swing arm structure |
| CN103696450A (en) * | 2013-12-18 | 2014-04-02 | 许世东 | Repairing machine for broken loading roadway for coal mine |
| CN106638735A (en) * | 2015-11-02 | 2017-05-10 | 宜昌长兴机械制造有限公司 | Excavator mechanical arm and multi-function excavator |
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