CN209924002U

CN209924002U - Loader-digger

Info

Publication number: CN209924002U
Application number: CN201920537041.2U
Authority: CN
Inventors: 王力; 金伟伟; 耿彦波
Original assignee: Jiangsu Xugong Construction Machinery Research Institute Co ltd
Current assignee: Jiangsu Xugong Construction Machinery Research Institute Co ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-01-10
Anticipated expiration: 2029-04-19

Abstract

The utility model relates to a backhoe loader, including loader main part, scraper bowl, crossbeam (2) and two at least movable arms (1), install movable arm (1) in the loader main part and with the scraper bowl is connected, and movable arm (1) is used for driving the scraper bowl motion, crossbeam (2) are connected two between movable arm (1), just the transversal rectangle of personally submitting of crossbeam (2). The utility model connects two movable arms through the beam, which can keep the consistency of the actions of the two movable arms, and can also improve the stability of the movable arms and the structural strength; and the cross section of the beam is rectangular, compared with the shapes such as round and the like, the cross beam has higher structural strength and higher bearing capacity, and can effectively protect the hood from being scratched when lateral load is applied.

Description

Loader-digger

Technical Field

The utility model relates to an engineering machine tool technical field especially relates to a loaderdigger.

Background

The excavating loader, commonly called as 'two ends busy', integrates excavating and loading. The loader end of the backhoe loader is limited to the mounting position of the engine and the hood, and the structural form thereof is greatly different from that of the loader. The left side and the right side of the loading end of the loader digger are respectively provided with a movable arm, the hood is positioned between the two movable arms, the movable arms on the two sides keep consistent in action during working, the important effect is achieved on the digging performance of the loader digger, and the structural rigidity and the bearing capacity of the movable arms are also important for improving the product quality.

At present, the structural design of swing arm is not too reasonable among the prior art, and structural strength is not enough, and bearing capacity is relatively weak, leads to structural stress great in the actual work, can appear the condition of scraping the aircraft bonnet in some abominable operating modes.

It is noted that the information disclosed in this background section of the invention is only for enhancement of understanding of the general background of the invention, and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a loaderdigger effectively improves loaderdigger's structural strength.

In order to achieve the above object, the utility model provides a loaderdigger, include:

a loader body;

a bucket;

the at least two movable arms are arranged on the loader main body, connected with the bucket and used for driving the bucket to move; and

the crossbeam is connected between the two movable arms, and the cross section of the crossbeam is rectangular.

Optionally, the cross beam is a hollow structure.

Optionally, the crossbeam includes first plate and second plate, and first plate and second plate all are the U type, and first plate and second plate dock each other and form the closed box.

Optionally, the first plate and the second plate are welded together.

Optionally, the cross beam is welded to the boom.

Optionally, the backhoe loader further comprises a first reinforcement plate mounted on the boom and located at a side of the cross member to fix the cross member.

Optionally, a first hinge hole is formed in the movable arm, the movable arm is connected with the bucket through the first hinge hole, a first boss extending from the surface of the movable arm to a direction far away from the movable arm is arranged at the first hinge hole, and the first reinforcing plate is arranged between the first boss and the cross beam and is in contact with the first boss and the cross beam respectively.

Optionally, the first reinforcing plate is provided with a first arc-shaped notch, and the first reinforcing plate is wrapped around the outer periphery of the first boss through the first arc-shaped notch.

Optionally, two adjacent side surfaces of the cross beam are in smooth transition, the first reinforcing plate is provided with a second arc-shaped notch, and the first reinforcing plate is wrapped on the periphery of the cross beam through the second arc-shaped notch.

Optionally, the backhoe loader further comprises a rocker and a second reinforcing plate, the second reinforcing plate is mounted on the movable arm and located on the side face of the cross beam to fix the cross beam, a second hinge hole is formed in the movable arm, the movable arm is connected with the rocker through the second hinge hole, the rocker is connected with the bucket, a second boss extending from the surface of the movable arm to the direction far away from the movable arm is arranged at the second hinge hole, and the second reinforcing plate is arranged between the second boss and the cross beam.

Based on the technical scheme, the embodiment of the utility model provides an in be equipped with the crossbeam, connect two swing arms through the crossbeam, can keep the uniformity of two swing arm actions, also can improve the stability of swing arm, improve structural strength; and the cross section of the beam is rectangular, compared with the shapes such as round and the like, the structural strength is higher, the bearing capacity is higher, the deformation amount can be reduced when the lateral load is applied, and the hood is effectively protected from being scratched.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a partial schematic structural view of an embodiment of the backhoe loader of the present invention.

Fig. 2 is a partial structural schematic diagram of fig. 1.

In the figure:

1. a movable arm; 2. a cross beam; 3. a first reinforcing plate; 4. a second reinforcing plate;

11. a first hinge hole; 12. a second hinge hole; 13. a third hinge hole; 14. a fourth hinge hole; 15. a fifth hinge hole;

21. a first plate member; 22. a second plate member;

31. a first arcuate recess; 32. a second arcuate recess;

41. a third arcuate recess; 42. a fourth arcuate notch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention.

As shown in fig. 1, in an exemplary embodiment of the backhoe loader provided by the present invention, the backhoe loader includes a loader main body, a bucket, a beam 2 and at least two movable arms 1, wherein the at least two movable arms 1 are installed on the loader main body and connected with the bucket, the movable arms 1 are used for driving the bucket to move, the beam 2 is connected between the two movable arms 1, and the cross section of the beam 2 is rectangular.

In the above exemplary embodiment, the backhoe loader includes the cross beam 2, and the two movable arms 1 are connected by the cross beam 2, so that the consistency of the motions of the two movable arms 1 can be maintained, the stability of the movable arms 1 can be improved, and the structural strength can be improved; and the cross section of the beam 2 is rectangular, compared with the shapes such as round and the like, the structural strength is higher, the bearing capacity is higher, the deformation can be reduced when lateral load is applied, and the hood is effectively protected from being scratched.

Optionally, the cross beam 2 is a hollow structure. This reduces the weight of the cross member 2 and thus the overall weight of the backhoe loader.

As shown in fig. 2, the cross beam 2 includes a first plate 21 and a second plate 22, the first plate 21 and the second plate 22 are both U-shaped, and the first plate 21 and the second plate 22 are butted against each other to form a closed box. By adopting the structure, the number of parts is less, and the assembly is convenient.

The horizontal portion of the first plate member 21 is disposed opposite to the horizontal portion of the second plate member 22, and the vertical portion of the first plate member 21 is butted against the vertical portion of the second plate member 22, so that a circumferential closed box body which is hollow and open at both ends is formed.

Alternatively, the first plate 21 and the second plate 22 are welded. The beam 2 and the movable arm 1 can also be connected by welding.

Optionally, the backhoe loader further includes a first reinforcement plate 3, the first reinforcement plate 3 is mounted on the boom 1, and the first reinforcement plate 3 is located at a side of the cross member 2 to fix the cross member 2.

The first reinforcing plate 3 may be connected to the boom 1 by welding. Through setting up first reinforcing plate 3, can fix crossbeam 2, be favorable to strengthening the connection of first plate 21 and second plate 22 simultaneously, strengthen crossbeam 2's structural strength and stability.

Further, be equipped with first hinge hole 11 on the swing arm 1, swing arm 1 is connected with the scraper bowl through first hinge hole 11, and first hinge hole 11 department is equipped with the first boss that extends to the direction of keeping away from swing arm 1 from the surface of swing arm 1, and first reinforcing plate 3 sets up between first boss and crossbeam 2 and respectively with first boss and crossbeam 2 contact.

Through setting up first reinforcing plate 3 between first boss and crossbeam 2, can fix the horizontal position of crossbeam 2 through first boss and first reinforcing plate 3, prevent that crossbeam 2 from taking place horizontal drunkenness, improve joint strength.

Further, the first reinforcing plate 3 is provided with a first arc-shaped notch 31, and the first reinforcing plate 3 is wrapped around the outer periphery of the first boss by the first arc-shaped notch 31. Therefore, the first reinforcing plate 3 can be tightly attached to the first boss, and the fixing performance of the relative position is effectively kept.

Alternatively, two adjacent side surfaces of the cross beam 2 are in smooth transition, the first reinforcing plate 3 is provided with a second arc-shaped notch 32, and the cross beam 2 is wrapped on the outer periphery of the cross beam 2 through the second arc-shaped notch 32. Through setting up second arc notch 32, except can guaranteeing that first reinforcing plate 3 can be laminated in order to prevent crossbeam 2 horizontal drunkenness with crossbeam 2 closely, can also fix crossbeam 2 from vertical direction, prevent crossbeam 2 vertical drunkenness. The horizontal direction is a direction parallel to the extending direction of the boom 1, and the vertical direction is a direction perpendicular to the extending direction of the boom 1.

Optionally, the cross section of the beam 2 is a rectangle with four rounded corners.

The backhoe loader further comprises a rocker and a second reinforcing plate 4, the second reinforcing plate 4 is installed on the movable arm 1, the second reinforcing plate 4 is located on the side face of the cross beam 2 to fix the cross beam 2, a second hinge hole 12 is formed in the movable arm 1, the movable arm 1 is connected with the rocker through the second hinge hole 12, the rocker is connected with a bucket, a second boss extending from the surface of the movable arm 1 to the direction far away from the movable arm 1 is arranged at the position of the second hinge hole 12, and the second reinforcing plate 4 is arranged between the second boss and the cross beam 2 and is in contact with the second boss and the cross beam 2 respectively.

Similarly, the second reinforcing plate 4 may be provided with a third arc-shaped notch 41 and a fourth arc-shaped notch 42, and the second reinforcing plate 4 is wrapped around the outer periphery of the second boss by the third arc-shaped notch 41 and is wrapped around the outer periphery of the cross beam 2 by the fourth arc-shaped notch 42 to fix the cross beam 2 from both the transverse direction and the vertical direction.

As shown in fig. 1, the movable arm 1 is further provided with a third hinge hole 13, a fourth hinge hole 14 and a fifth hinge hole 15, wherein the movable arm 1 is connected to a movable arm cylinder through the third hinge hole 13, the movable arm cylinder is used for driving the movable arm 1 to move, the movable arm 1 is connected to the middle of the bent plate through the fourth hinge hole 14, and the movable arm 1 is connected to the loader body through the fifth hinge hole 15. One end of the bent plate is connected with the large top oil cylinder, the driving end of the large top oil cylinder is connected with the rocker, and the large top oil cylinder is used for driving the rocker to move. The other end of the bent plate is connected with the rotating device.

Through right the utility model discloses the explanation of loader digger's a plurality of embodiments can see the utility model discloses loader digger embodiment is through setting up the crossbeam to improve the cross section structure of crossbeam, make the structural strength of crossbeam and swing arm strengthen greatly, effectively improve bearing capacity, reduce the deflection, even receive transverse load, also can effectively guarantee that the aircraft bonnet is not cut to the scratch, increase of service life by the scissors.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A backhoe loader comprising:

a loader body;

a bucket;

the at least two movable arms (1) are arranged on the loader body, connected with the bucket and used for driving the bucket to move; and

and the cross beam (2) is connected between the two movable arms (1), and the cross section of the cross beam (2) is rectangular.

2. The backhoe loader of claim 1, wherein the cross member (2) is a hollow structure.

3. The backhoe loader of claim 1, wherein the cross beam (2) comprises a first plate (21) and a second plate (22), the first plate (21) and the second plate (22) each having a U-shape, the first plate (21) and the second plate (22) abutting each other to form a closed box.

4. The backhoe loader of claim 3, wherein the first plate (21) and the second plate (22) are welded.

5. The backhoe loader of claim 1, wherein the cross member (2) is welded to the boom (1).

6. The backhoe loader of claim 1, further comprising a first reinforcement plate (3), wherein the first reinforcement plate (3) is mounted on the boom (1), and the first reinforcement plate (3) is located at a side of the cross member (2) to fix the cross member (2).

7. The backhoe loader of claim 6, wherein the movable arm (1) is provided with a first hinge hole (11), the movable arm (1) is connected to the bucket through the first hinge hole (11), the first hinge hole (11) is provided with a first boss extending from a surface of the movable arm (1) in a direction away from the movable arm (1), and the first reinforcement plate (3) is disposed between the first boss and the cross member (2) and is in contact with the first boss and the cross member (2), respectively.

8. The backhoe loader of claim 7, wherein the first reinforcement plate (3) is provided with a first arc-shaped notch (31), and the first reinforcement plate (3) is wrapped around the outer periphery of the first boss by the first arc-shaped notch (31).

9. The backhoe loader of claim 6, wherein adjacent two sides of the cross member (2) are smoothly transitioned, and the first reinforcement plate (3) is provided with a second arc-shaped notch (32), and the first reinforcement plate (3) is wrapped around the outer periphery of the cross member (2) by the second arc-shaped notch (32).

10. The backhoe loader of claim 1, further comprising a rocker and a second reinforcement plate (4), wherein the second reinforcement plate (4) is mounted on the boom (1), the second reinforcement plate (4) is located on a side surface of the cross member (2) to fix the cross member (2), a second hinge hole (12) is formed in the boom (1), the boom (1) is connected to the rocker through the second hinge hole (12), the rocker is connected to the bucket, a second boss extending from a surface of the boom (1) in a direction away from the boom (1) is provided at the second hinge hole (12), and the second reinforcement plate (4) is provided between the second boss and the cross member (2).