CN113684880A

CN113684880A - Front frame of land leveler and land leveler

Info

Publication number: CN113684880A
Application number: CN202111094901.8A
Authority: CN
Inventors: 李贺德; 雷宁宁; 陈天野; 王应品; 李瑜; 李兴波
Original assignee: Shantui Chutian Construction Machinery Co Ltd
Current assignee: Shantui Chutian Construction Machinery Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2021-11-23
Anticipated expiration: 2041-09-17
Also published as: CN113684880B

Abstract

The invention belongs to the technical field of engineering, and discloses a land leveler front frame and a land leveler, wherein the land leveler front frame comprises a front mounting seat, a cross beam and a cab mounting seat, and the front mounting seat is provided with a working device mounting hole and a front axle mounting hole; integrally processing and molding a cross beam, wherein the cross beam comprises a first end part and a second end part, and the first end part of the cross beam is connected to the front mounting seat; an oil cylinder mounting hole is formed in the cab mounting seat, and the cab mounting seat is connected to the second end portion of the cross beam. The front frame of the land leveler is of a three-section structure, the cross beam is integrally formed to replace the existing splicing structure of the front beam and the rear beam, the front mounting seat, the cross beam and the cab mounting seat are processed into a single whole before synthesis, and finally, the whole assembly is carried out, the influence of the welding deformation in the middle of the cross beam on the whole structure is eliminated by integrally forming the cross beam, the modular production and manufacturing are facilitated, and the precision of the mounting positions of the front axle, the working device, the oil cylinder and the cab can be ensured.

Description

Front frame of land leveler and land leveler

Technical Field

The invention relates to the technical field of engineering, in particular to a front frame of a land leveler.

Background

A grader is an earth-moving machine that levels the ground with a blade. The cab-forward grader includes a front frame and a rear frame. The front frame comprises a front beam and a rear beam which are of a two-section structure, the cab mounting seat and the rear beam are integrally arranged, the front beam and the rear beam are spliced, and the last process of welding the front frame is completed. Before front beam and back beam concatenation, need weld front axle mounting panel and equipment mounting panel on the front beam earlier, be convenient for install front axle and scraper, welding hydro-cylinder mounting panel on the driver's cabin mount pad, be convenient for install the hydro-cylinder, let front beam and back beam welding at last, the welding tolerance of welding process in earlier stage at this moment is accumulated, the panel dislocation appears easily in the welding between front beam and the back beam, welding seam intensity reduces to the structural strength of preceding frame has been reduced. In addition, in the two-section type front frame structure, after the front beam and the rear beam are welded, the accuracy of the mounting positions of the front axle, the working device, the oil cylinder and the cab cannot be ensured, and the subsequent mounting of the front axle, the working device, the oil cylinder and the cab is inconvenient.

Disclosure of Invention

An object of the present invention is to provide a front frame of a grader, which improves the accuracy of the installation positions of a front axle, a working device, a cylinder, and a cab while ensuring the structural strength of the front frame.

In order to achieve the purpose, the invention adopts the following technical scheme:

a grader front frame comprising:

the front mounting seat is provided with a working device mounting hole and a front axle mounting hole;

the cross beam is integrally machined and formed and comprises a first end part and a second end part, and the first end part is connected to the front mounting seat;

the cab mounting seat is provided with an oil cylinder mounting hole, and the cab mounting seat is connected to the second end part of the cross beam.

Preferably, the front mount includes:

a counterweight mounting plate;

the two abutting plates are oppositely arranged and are vertically connected to the counterweight mounting plate;

the mounting panel subassembly, seted up on the mounting panel subassembly the equipment mounting hole with the front axle mounting hole, counter weight mounting panel, two the butt plate with the mounting panel subassembly encloses to be established into and holds the chamber, first end sets up hold the intracavity, and connect respectively in two the butt plate.

Preferably, the mounting plate assembly includes:

the working device mounting plate is arranged between the two abutting plates, two ends of the working device mounting plate are respectively connected to the two abutting plates, and the working device mounting plate is provided with a working device mounting hole;

the front axle mounting panel, the front axle mounting panel connect in the equipment mounting panel, just the front axle mounting panel sets up in two the below of butt joint board, seted up on the front axle mounting panel the front axle mounting hole.

Preferably, the front mounting seat further comprises a reinforcing member for reinforcing the structural strength of the two abutting plates.

Preferably, the cab mount includes:

the first mounting seat is provided with a cab mounting hole and a rear frame hinge hole;

the second mount pad, the second mount pad sets up the below of first mount pad and connect in first mount pad, the second mount pad includes the welding part, the crossbeam the second end connect in the welding part.

Preferably, the welding part includes a first welding plate and a second welding plate connected to the first welding plate, the second end portion corresponds to the first welding plate and the second welding plate is provided with a third welding plate and a fourth welding plate connected to the third welding plate, the third welding plate is welded to the first welding plate, and the fourth welding plate is welded to the second welding plate.

Preferably, the first welding plate and the second welding plate are arranged at a certain included angle.

Preferably, the included angle between the first welding plate and the second welding plate is an obtuse angle.

Preferably, the second mounting seat is connected with an oil cylinder mounting plate, and the oil cylinder mounting plate is provided with the oil cylinder mounting holes.

It is another object of the present invention to provide a motor grader including a rear frame coupled to the cab mount and a front frame of the motor grader as described above.

The invention has the beneficial effects that:

the front frame of the grader is of a three-section structure, the cross beam is integrally formed to replace the existing splicing structure of the front beam and the rear beam, the front mounting seat and the cab mounting seat are respectively arranged at the two ends of the cross beam, the front mounting seat, the cross beam and the cab mounting seat are firstly processed into a single whole before being integrally assembled, and finally, the whole assembly is processed into the front frame of the grader. The integral forming of the cross beam not only eliminates the influence of welding deformation in the middle of the cross beam on the whole structure, but also is beneficial to modular production and manufacturing and is convenient for batch production. The welding seam is not arranged in the middle of the cross beam, the welding seam is transferred to the two ends of the cross beam, the size precision of the front frame of the grader after welding is improved, products can be guaranteed by manufacturing in sections and then grouping, and the quality and the precision of the installation positions of a front axle, a working device, an oil cylinder and a cab can be guaranteed.

The invention also provides a land leveler which comprises a rear frame and the land leveler front frame, wherein a rear frame hinge hole is formed in the first mounting seat of the cab mounting seat, and the rear frame is connected to the first mounting seat of the cab mounting seat, so that the connection between the land leveler front frame and the rear frame is realized. According to the land leveler, the land leveler front frame is adopted, the size precision of the welded front frame is improved, modular production and batch production are facilitated, and the quality of products is improved due to the fact that the front frame is manufactured in sections and then assembled.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the front frame embodiment of the grader;

FIG. 2 is a schematic structural view of a front mount provided by an embodiment of a grader front frame of the present invention;

FIG. 3 is a schematic structural view of a cross-beam provided by a front frame embodiment of the grader;

fig. 4 is a schematic structural view of a cab mount provided by an embodiment of a grader front frame of the present invention.

In the figure:

1. a front mounting base; 11. a counterweight mounting plate; 12. a butt joint plate; 13. mounting the plate assembly; 131. a working device mounting plate; 1311. a working device mounting hole; 132. a front axle mounting plate; 1321. a front axle mounting hole; 14. a reinforcement;

2. a cross beam; 21. a first end portion; 22. a second end portion; 221. a third weld plate; 222. a fourth weld plate; 23. a wire harness is provided with a hole; 24. a reinforcing plate;

3. a cab mount; 31. a first mounting seat; 311. a cab mounting hole; 312. a rear frame hinge hole; 32. a second mounting seat; 321. welding the part; 3211. a first weld plate; 3212. a second weld plate; 322. an oil cylinder mounting plate;

4. and a bending plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the embodiments of the present invention, the terms "upper", "lower", "right", and the like are used in an orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The front frame in the prior art comprises a front beam and a rear beam which are of a two-section structure, a cab mounting seat and the rear beam are integrally machined and formed, and the front beam and the rear beam are spliced to finish the last process of welding the front frame. Before the front beam and the rear beam are spliced, a front axle mounting plate and a working device mounting plate need to be welded on the front beam, so that the front axle and a scraper can be conveniently installed, and an oil cylinder mounting plate is welded on a cab mounting seat so as to conveniently install an oil cylinder. And finally, the front beam and the rear beam are welded, the welding tolerance of the earlier welding process is accumulated, the welding between the front beam and the rear beam is easy to cause plate dislocation, and the strength of a welding seam is reduced, so that the structural strength of the front frame is reduced. In addition, in the two-section type front frame structure, after the front beam and the rear beam are welded, the accuracy of the mounting positions of the front axle, the working device, the oil cylinder and the cab cannot be ensured, and the subsequent mounting of the front axle, the working device, the oil cylinder and the cab is inconvenient.

In order to solve the above problems, the embodiment provides a front frame of a grader, which relates to the technical field of engineering, and as shown in fig. 1 to 4, the front frame of the grader comprises a front mounting seat 1, a cross beam 2 and a cab mounting seat 3, and the front mounting seat 1 is provided with a working device mounting hole 1311 and a front axle mounting hole 1321, so that a working device and a front axle can be conveniently mounted; integrally processing and molding a cross beam 2, wherein the cross beam 2 comprises a first end part 21 and a second end part 22, and the first end part 21 of the cross beam 2 is connected with the front mounting seat 1; an oil cylinder mounting hole is formed in the cab mounting base 3, so that an oil cylinder can be conveniently mounted, and the cab mounting base 3 is connected to the second end portion 22 of the cross beam 2.

The front frame of the grader that this embodiment provided is the syllogic structure, replaces current front-axle beam and back-axle beam mosaic structure with 2 integrated into one piece on the crossbeam to set up preceding mount pad 1 and driver's cabin mount pad 3 respectively at two tip of crossbeam 2, preceding mount pad 1, crossbeam 2 and driver's cabin mount pad 3 process into single whole before whole team, carry out whole group pair at last and process into the front frame of the grader. The beam 2 is integrally formed, so that the influence of welding deformation in the middle of the beam 2 on the whole structure is eliminated, and the modular production and manufacturing are facilitated, and the mass production is facilitated. The welding seam is not arranged in the middle of the cross beam 2, the welding seam is transferred to the two ends of the cross beam 2, the size precision of the front frame of the grader after welding is improved, and the front axle, the working device, the oil cylinder and the cab can be guaranteed to be accurate in installation positions due to the fact that the front frame of the grader is manufactured in sections and then assembled.

Further, as shown in fig. 2 and 3, the front mounting base 1 includes a counterweight mounting plate 11, two abutting plates 12 and a mounting plate assembly 13, wherein the two abutting plates 12 are oppositely arranged and are vertically connected to the counterweight mounting plate 11; the mounting plate component 13 is provided with a working device mounting hole 1311 and a front axle mounting hole 1321, so that a working device and a front axle can be conveniently mounted, the counterweight mounting plate 11, the two abutting plates 12 and the mounting plate component 13 are enclosed to form a containing cavity, the first end portion 21 of the cross beam 2 is inserted between the two abutting plates 12, the counterweight mounting plate 11, the two abutting plates 12 and the mounting plate component 13 are arranged in the containing cavity, two side surfaces of the first end portion 21 are respectively connected to the two abutting plates 12, and the cross beam 2 and the front mounting seat 1 are connected. More specifically, both side surfaces of the first end portion 21 are welded to the two abutting plates 12, respectively, and the connection strength and the connection stability of the first end portion 21 and the front mount 1 are ensured. When the first end portion 21 is disposed in the accommodation cavity, the first end portion 21 can abut against the counterweight mounting plate 11, and the counterweight mounting plate 11 plays a certain role in limiting the first end portion 21.

Optionally, a counterweight mounting bolt hole is formed in the counterweight mounting plate 11, so that a counterweight device can be conveniently mounted on the counterweight mounting plate 11. And (4) directly machining a balance weight mounting bolt hole from the balance weight mounting plate 11 through numerical control flame.

Specifically, as shown in fig. 2, the mounting plate assembly 13 includes a working device mounting plate 131 and a front axle mounting plate 132, the working device mounting plate 131 is disposed on one side of the two abutting plates 12 away from the counterweight mounting plate 11 and between the two abutting plates 12, two ends of the working device mounting plate 131 are respectively connected to the two abutting plates 12, so as to ensure the connection stability of the working device mounting plate 131, and a working device mounting hole 1311 is formed in the working device mounting plate 131, so as to realize the connection of a working device and a front frame of a grader; the front axle mounting plate 132 is connected to the working device mounting plate 131, the front axle mounting plate 132 is arranged below the two abutting plates 12, and a front axle mounting hole 1321 is formed in the front axle mounting plate 132, so that the front axle and the front frame of the grader are connected. More specifically, the front axle mounting plate 132 is a U-shaped structure, and includes two opposite horizontal plates disposed on a vertical plate and connecting the two vertical plates, the horizontal plates are connected to the working device mounting plate 131, and front axle mounting holes 1321 are opened on the vertical plates.

Specifically, as shown in fig. 2, the front mount 1 further includes a reinforcement 14, and the reinforcement 14 is used to reinforce the structural strength of the two abutting plates 12. The reinforcement 14 is disposed between the two abutment plates 12 and the front axle mounting plate 132, and the upper end face of the reinforcement 14 is connected to the two abutment plates 12, increasing the structural strength of the two abutment plates 12. The lower terminal surface of reinforcement 14 is provided with the draw-in groove, and the draw-in groove can the joint in the diaphragm of front axle mounting panel 132 to play certain limiting displacement to front axle mounting panel 132.

Specifically, as shown in fig. 3, a harness insertion hole 23 is formed in the first end 21 of the cross member 2 so that a harness can be inserted into the cross member 2.

Specifically, as shown in fig. 3, the cross beam 2 is integrally formed, and the cross beam 2 includes a straight rod portion and a bent portion, and a reinforcing plate 24 is disposed at the bent portion to increase the structural strength of the cross beam 2 and reduce the deformation of the cross beam 2.

Further, as shown in fig. 4, the cab mounting base 3 includes a first mounting base 31 and a second mounting base 32, a cab mounting hole 311 is formed in the first mounting base 31, so that the cab is mounted on the first mounting base 31, and a rear frame hinge hole 312 is further formed in the cab mounting base 3, so that the connection between the front frame and the rear frame of the grader is realized; second mount 32 is disposed below first mount 31 and is connected to first mount 31, and second mount 32 includes weld 321, connects second end 22 of beam 2 to weld 321 of second mount 32, and enables beam 2 and cab mount 3 to be connected.

Specifically, as shown in fig. 3 and 4, the welding portion 321 of the second mounting seat 32 includes a first welding plate 3211 and a second welding plate 3212 connected to the first welding plate 3211, the second end portion 22 of the cross beam 2 is provided with a third welding plate 221 and a fourth welding plate 222 connected to the third welding plate 221 corresponding to the first welding plate 3211 and the second welding plate 3212, the third welding plate 221 is welded to the first welding plate 3211, and the fourth welding plate 222 is welded to the second welding plate 3212, so as to achieve connection between the second end portion 22 of the cross beam 2 and the welding portion 321.

Specifically, as shown in fig. 2 and 3, the first welding plate 3211 and the second welding plate 3212 are disposed at a certain angle, and correspondingly, the third welding plate 221 and the fourth welding plate 222 are also disposed at a certain angle, before the welding process, the second end 22 is placed on the welding portion 321, so that the third welding plate 221 can be attached to the first welding plate 3211, and the fourth welding plate 222 can be attached to the second welding plate 3212, and then the welding process is performed. More specifically, the included angle between the first welding plate 3211 and the second welding plate 3212 is an obtuse angle, which increases the contact area between the second end 22 and the welding portion 321, and enhances the connection stability between the second end 22 and the welding portion 321.

In the present embodiment, in order to further ensure the connection stability between the second end 22 and the welding portion 321, after the second end 22 and the welding portion 321 are welded, a bending plate 4 (as shown in fig. 1) is further provided, and the bending plate 4 is attached to the second end 22 and the lower end surface of the second mounting seat 32 and welded to the outer wall of the cross beam 2 and the lower end surface of the second mounting seat 32.

Specifically, as shown in fig. 4, the second mounting seat 32 is provided with an oil cylinder mounting plate 322, and the oil cylinder mounting plate 322 is provided with an oil cylinder mounting hole, so that the oil cylinder is conveniently mounted.

The embodiment also provides a grader, which comprises a rear frame and the grader front frame, wherein the rear frame is connected to the first mounting seat 31 of the cab mounting seat 3, and the connection between the grader front frame and the rear frame is realized. The grader that this embodiment provided adopts foretell grader front frame, has improved the size precision after the welding of front frame, is favorable to the modularization production manufacturing and batch production, and the segmentation is made and is assembled moreover and be favorable to providing the quality of product.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A grader front frame, comprising:

the front mounting seat (1) is provided with a working device mounting hole (1311) and a front axle mounting hole (1321);

the cross beam (2) is integrally machined and formed, the cross beam (2) comprises a first end portion (21) and a second end portion (22), and the first end portion (21) is connected to the front mounting seat (1);

the cab mounting seat (3) is provided with an oil cylinder mounting hole, and the cab mounting seat (3) is connected to the second end portion (22) of the cross beam (2).

2. Front frame of a grader according to claim 1, characterized in that the front mount (1) comprises:

a counterweight mounting plate (11);

the two abutting plates (12) are arranged oppositely and are vertically connected to the counterweight mounting plate (11);

mounting panel subassembly (13), seted up on mounting panel subassembly (13) equipment mounting hole (1311) with front axle mounting hole (1321), counter weight mounting panel (11), two butt plate (12) with mounting panel subassembly (13) enclose and establish into and hold the chamber, first end (21) set up hold the intracavity, and connect respectively in two butt plate (12).

3. The grader front frame according to claim 2, characterized in that the mounting plate assembly (13) comprises:

the working device mounting plate (131) is arranged between the two abutting plates (12), two ends of the working device mounting plate (131) are connected to the two abutting plates (12) respectively, and the working device mounting plate (131) is provided with a working device mounting hole (1311);

front axle mounting panel (132), front axle mounting panel (132) connect in equipment mounting panel (131), just front axle mounting panel (132) set up in two the below of butt joint board (12), seted up on front axle mounting panel (132) front axle mounting hole (1321).

4. Front frame of a grader according to claim 2, characterized in that the front mount (1) further comprises a reinforcement (14), the reinforcement (14) being intended to reinforce the structural strength of the two abutment plates (12).

5. Front frame of a grader according to claim 1, characterized in that the cab mount (3) comprises:

the first mounting seat (31) is provided with a cab mounting hole (311) and a rear frame hinge hole (312);

a second mounting seat (32), the second mounting seat (32) is arranged below the first mounting seat (31) and connected to the first mounting seat (31), the second mounting seat (32) comprises a welding part (321), and the second end part (22) of the cross beam (2) is connected to the welding part (321).

6. The grader front frame according to claim 5, wherein the welding portion (321) comprises a first welding plate (3211) and a second welding plate (3212) connected to the first welding plate (3211), the second end portion (22) is provided with a third welding plate (221) and a fourth welding plate (222) connected to the third welding plate (221) corresponding to the first welding plate (3211) and the second welding plate (3212), the third welding plate (221) is welded to the first welding plate (3211), and the fourth welding plate (222) is welded to the second welding plate (3212).

7. The grader front frame according to claim 6, wherein the first weld plate (3211) and the second weld plate (3212) are angled.

8. The grader front frame according to claim 7, wherein the included angle of the first weld plate (3211) and the second weld plate (3212) is an obtuse angle.

9. The front frame of the grader according to claim 5, wherein the second mounting base (32) is connected with a cylinder mounting plate (322), and the cylinder mounting plate (322) is provided with the cylinder mounting hole.

10. Grader comprising a rear frame and a grader front frame according to any one of claims 1 to 9, characterized in that the rear frame is connected to the cab mount (3).