CN211255061U

CN211255061U - Two-section telescopic suspension arm capable of enlarging operation range

Info

Publication number: CN211255061U
Application number: CN201922206051.0U
Authority: CN
Inventors: 吾甲民
Original assignee: Yixing Grapple Forestry Machinery Co ltd
Current assignee: Yixing Grapple Forestry Machinery Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-08-14
Anticipated expiration: 2029-12-10

Abstract

The utility model relates to a two-section telescopic suspension arm for expanding the operation range, which comprises a slewing gear; the slewing device comprises a gear box and a steering oil cylinder; a steering oil cylinder is arranged on the gear box; the upright post is movably arranged on the gear box; a lifting oil cylinder is arranged on the inner side of the upright post; one end of the upright post is hinged with the large arm through a first connecting mechanism; the lower part of the big arm is connected with a piston rod of the lifting oil cylinder; a pair of first connecting plates are fixed at the upper part of the large arm; the pair of first connecting plates are connected with the overturning oil cylinder through a pin shaft; a piston rod of the overturning oil cylinder is connected with a second connecting mechanism; the large arm is hinged with the small arm through a second connecting mechanism; the upper part of the small arm is provided with a first stroke oil cylinder; a telescopic arm is sleeved in the small arm; the piston rod of the first stroke oil cylinder pushes or retracts the telescopic arm. The utility model discloses greatly improved the operation scope of davit.

Description

Two-section telescopic suspension arm capable of enlarging operation range

Technical Field

The utility model relates to a mechanical equipment makes technical field, in particular to enlarge two sections telescopic boom of working range.

Background

In the processes of cutting, mining and transporting wood, the use of the log grab is omitted, and the log grab plays an important role in the existing engineering construction and old area transformation if the wood is transported and dragged away. But one would consider the log grab to be impractical and consider that other mechanical devices could be substituted for it. And some people think that the use of the log grab can influence the normal operation of the traffic in the city, and actually, the performance of the log grab is still good, the machine body is small, the occupied space is not large, and the operation is also good. In the market, the utilization rate of the method is high.

The application number is CN201520691445.9, the name is "a hydraulic suspension arm", the document discloses a current hydraulic suspension arm, including base and davit, the one end of davit is connected with the base, wherein, still include power device and controller, the davit includes first davit, second davit and execution davit, execution davit is through pivot respectively with first davit, second davit swing joint, first davit and second davit are all fixed on the base, power device is connected with the second davit, the controller is installed in the base, be equipped with the angle of turning sensor in the pivot, all be equipped with displacement sensor on first davit and the second davit, angle of turning sensor and displacement sensor all are connected with the controller.

The prior suspension arm has the following disadvantages: 1. due to the fact that the installation position of the lifting arm cannot be used for lifting operation of 360 degrees, the swing radius range of the lifting arm is narrow during lifting operation, and limitation is large. 2. The hoisting weight is relatively limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a two sections telescopic boom who enlarges the operation scope to prior art not enough.

The utility model discloses the technical scheme who adopts as follows:

a two-section telescopic suspension arm for expanding the operation range comprises a slewing gear; the slewing device comprises a gear box and a steering oil cylinder; the steering oil cylinder is arranged on the gear box; an upright post is movably arranged on the gear box; a lifting oil cylinder is arranged on the inner side of the upright post; one end of the upright post is hinged with the large arm through a first connecting mechanism; the lower part of the big arm is connected with a piston rod of the lifting oil cylinder; a pair of first connecting plates are fixed at the upper part of the large arm; the pair of first connecting plates are connected with a turnover oil cylinder through a pin shaft; a piston rod of the overturning oil cylinder is connected with a second connecting mechanism; the large arm is hinged with the small arm through the second connecting mechanism; a first stroke oil cylinder is arranged at the upper part of the small arm; the telescopic arm is sleeved in the small arm; and a piston rod of the first stroke oil cylinder pushes or retracts the telescopic arm.

The method is further characterized in that: the first connecting mechanism comprises a pair of second connecting plates; a pair of second connecting plates is provided with a plurality of groups of pin holes; a pin shaft sequentially penetrates through the pin holes to hinge the stand column and the second connecting plate; the pair of second connecting plates clamps the large arm, and a pin shaft is used for hinging the pair of second connecting plates and the large arm.

The method is further characterized in that: the second connecting mechanism comprises a pair of first connecting rods and a pair of second connecting rods; the first end of the first connecting rod and the first end of the second connecting rod are simultaneously fixed on a piston rod of the turnover oil cylinder; an included angle is formed between the first connecting rod and the second connecting rod; the pair of first connecting rods are correspondingly and movably connected to the pair of third connecting plates; the pair of second connecting rods are correspondingly and movably connected to the pair of fourth connecting plates; the third connecting plate is hinged with the fourth connecting plate; the pair of third connecting plates clamps the small arm; the pair of third connecting plates are connected with the first stroke oil cylinder through a pin shaft; the pair of fourth connecting plates is fixed to the left and right sides of the large arm.

The method is further characterized in that: the telescopic arm comprises a bottom section and a top section which are mutually embedded; the bottom section is embedded in the small arm; a bracket is fixed on the bottom section; a piston rod of the first stroke oil cylinder is connected with the bracket; a second stroke oil cylinder is arranged in the cavity of the bottom section; and a piston rod of the second stroke oil cylinder is connected with the top section.

The utility model has the advantages as follows:

when the steering mechanism works, the steering oil cylinder drives the stand column to rotate left and right on the gear box, and the stand column drives the large arm to rotate, so that the small arm and the telescopic arm are driven to rotate. And the lifting or descending of the lifting oil cylinder drives the lifting or descending of the big arm, and the lifting or descending of the big arm drives the lifting or descending of the small arm and the telescopic arm. Meanwhile, the small arm and the telescopic arm are pushed to rotate up and down through the overturning oil cylinder. The first stroke oil cylinder and the second stroke oil cylinder push the bottom section of the telescopic arm and the top section of the telescopic arm to sequentially stretch and retract section by section.

The utility model discloses a big arm is short, and the flexible armlength of two sections has greatly improved the operation scope of davit, makes the davit can work at more scope, and hoist and mount weight does not receive the restriction of operating mode, greatly improves work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a diagram of the telescopic operation range of the present invention.

In the figure: 1. a gear case; 2. a steering cylinder; 3. a column; 4. lifting the oil cylinder; 5. a large arm; 6. a first connecting plate; 7. turning over the oil cylinder; 8. a small arm; 9. a first stroke cylinder; 10. a telescopic arm; 11. a second connecting plate; 12. a first connecting rod; 13. a second connecting rod; 14. a third connecting plate; 15. a fourth connecting plate; 16. and (4) a bracket.

Detailed Description

The foregoing and other features, aspects and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Therefore, the directional terminology used is for the purpose of describing, but not limiting, the invention, and moreover, like reference numerals designate like elements throughout the embodiments.

The following describes a specific embodiment of the present embodiment with reference to the drawings.

Fig. 1 is a schematic structural view of the present invention, and fig. 2 is a front view of the present invention. Referring to fig. 1 and 2, a two-section telescopic boom for enlarging the working range comprises a slewing device. The slewing device comprises a gear box 1 and a steering cylinder 2. The gear box 1 is provided with a steering oil cylinder 2. The upright post 3 is movably arranged on the gear box 1. And a lifting oil cylinder 4 is arranged on the inner side of the upright post 3. One end of the upright post 3 is hinged with a large arm 5 through a first connecting mechanism. The first connecting mechanism includes a pair of second connecting plates 11. The pair of second connecting plates 11 is provided with a plurality of groups of pin holes. The pin shaft sequentially penetrates through the pin holes to hinge the upright post 3 and the second connecting plate 11. The pair of second connecting plates 11 clamps the large arm 5, and the pair of second connecting plates 11 and the large arm 5 are hinged by a pin shaft. The lower part of the large arm 5 is connected with the piston rod of the lifting cylinder 4.

A pair of first link plates 6 are fixed to the upper portion of the large arm 5. The pair of first connecting plates 6 are connected with a turnover oil cylinder 7 through a pin shaft. And a piston rod of the overturning oil cylinder 7 is connected with a second connecting mechanism. The big arm 5 is hinged with the small arm 8 through a second connecting mechanism. The second connecting mechanism includes a pair of first connecting rods 12 and a pair of second connecting rods 13. The first end of the first connecting rod 12 and the first end of the second connecting rod 13 are fixed on the piston rod of the turnover cylinder 7 at the same time. An included angle is formed between the first connecting rod 12 and the second connecting rod 13. A pair of first connecting rods 12 are movably connected to a pair of third connecting plates 14, respectively. The pair of second connecting rods 13 are correspondingly movably connected to the pair of fourth connecting plates 15. The third connecting plate 14 and the fourth connecting plate 15 are hinged. A pair of third webs 14 clamp the small arms 8. The pair of third connecting plates 14 are connected with the first stroke oil cylinder 9 through a pin shaft. A pair of fourth connecting plates 15 are fixed to the left and right sides of the large arm 5. The upper part of the small arm 8 is provided with a first stroke oil cylinder 9. The telescopic arm 10 is sleeved in the small arm 8. The piston rod of the first stroke cylinder 9 pushes or retracts the telescopic arm 10.

The telescopic arm 10 includes a bottom section and a top section which are fitted to each other. The bottom section is embedded in the small arm 8. The bottom section is fixed with a bracket 16. The piston rod of the first stroke cylinder 9 is connected with the bracket 16. The bracket 16 is fixed with a drag chain guide groove. A second stroke cylinder (not shown in the figure) is arranged in the cavity of the bottom section. And a piston rod of the second stroke oil cylinder is connected with the top section. The end part of the top section is provided with a connecting piece for installing the gripping apparatus, and the suspension arm is matched with different types of gripping apparatuses to realize different functions.

The working principle of the utility model is as follows:

fig. 3 is a diagram of the telescopic operation range of the present invention. As shown in fig. 3, in operation, the steering cylinder 2 drives the upright column 3 to rotate left and right on the gear box 1, and the upright column 3 drives the large arm 5 to rotate, so as to drive the small arm 8 and the telescopic arm 10 to rotate. And the large arm 5 is driven to lift or descend by the lifting or descending of the lifting oil cylinder 4, and the small arm 8 and the telescopic arm 10 are driven to lift or descend by the lifting or descending of the large arm 5. Meanwhile, the small arm 8 and the telescopic arm 10 are pushed to rotate up and down through the overturning oil cylinder 7. The first stroke oil cylinder 9 and the second stroke oil cylinder push the bottom section of the telescopic arm 10 and the top section of the telescopic arm 10 to sequentially stretch and retract section by section. The utility model discloses greatly improved the working range radius of davit.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made without departing from the basic structure of the invention.

Claims

1. The utility model provides an enlarge two sections telescopic boom of working range which characterized in that: comprises a rotating device; the slewing device comprises a gear box (1) and a steering oil cylinder (2); the gear box (1) is provided with the steering oil cylinder (2); an upright post (3) is movably arranged on the gear box (1); a lifting oil cylinder (4) is arranged on the inner side of the upright post (3); one end of the upright post (3) is hinged with the large arm (5) through a first connecting mechanism; the lower part of the large arm (5) is connected with a piston rod of the lifting oil cylinder (4); a pair of first connecting plates (6) is fixed at the upper part of the large arm (5); the pair of first connecting plates (6) are connected with a turnover oil cylinder (7) through a pin shaft; a piston rod of the overturning oil cylinder (7) is connected with a second connecting mechanism; the large arm (5) is hinged with the small arm (8) through the second connecting mechanism; a first stroke oil cylinder (9) is arranged at the upper part of the small arm (8); a telescopic arm (10) is sleeved in the small arm (8); and a piston rod of the first stroke oil cylinder (9) pushes or retracts the telescopic arm (10).

2. The two-section telescopic boom for enlarging the working range according to claim 1, wherein: the first connecting mechanism comprises a pair of second connecting plates (11); a plurality of groups of pin holes are formed in the pair of second connecting plates (11); a pin shaft sequentially penetrates through the pin holes to hinge the upright post (3) and the second connecting plate (11); the pair of second connecting plates (11) clamps the large arm (5), and a pin shaft is used for hinging the pair of second connecting plates (11) and the large arm (5).

3. The two-section telescopic boom for enlarging the working range according to claim 1, wherein: the second connecting mechanism comprises a pair of first connecting rods (12) and a pair of second connecting rods (13); the first end of the first connecting rod (12) and the first end of the second connecting rod (13) are simultaneously fixed on a piston rod of the overturning oil cylinder (7); an included angle is formed between the first connecting rod (12) and the second connecting rod (13); the pair of first connecting rods (12) are correspondingly and movably connected to the pair of third connecting plates (14); the pair of second connecting rods (13) are correspondingly and movably connected to the pair of fourth connecting plates (15); the third connecting plate (14) and the fourth connecting plate (15) are hinged; a pair of said third connecting plates (14) clamping said small arms (8); the pair of third connecting plates (14) is connected with the first stroke oil cylinder (9) through a pin shaft; the pair of fourth connecting plates (15) are fixed to the left and right sides of the large arm (5).

4. The two-section telescopic boom for enlarging the working range according to claim 1, wherein: the telescopic arm (10) comprises a bottom section and a top section which are mutually embedded; the bottom section is embedded in the small arm (8); the bottom section is provided with a fixed bracket (16); a piston rod of the first stroke oil cylinder (9) is connected with the bracket (16); a second stroke oil cylinder is arranged in the cavity of the bottom section; and a piston rod of the second stroke oil cylinder is connected with the top section.