CN218959426U

CN218959426U - Lower pull rod piece of three-point suspension device of tractor

Info

Publication number: CN218959426U
Application number: CN202222952596.8U
Authority: CN
Inventors: 陈兴海; 杨兆虎; 廖贵明; 陈紫娟; 李佳阳
Original assignee: Xihua University
Current assignee: Xihua University
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-05-05
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a three-point suspension device pull-down rod piece of a tractor, which is technically characterized by comprising a support, a pull-down rod, a limiting rod, a lifting arm, an upper pull rod, a fixed block, a connecting joint and a hinged end, wherein suspension assemblies are symmetrically arranged on the left side and the right side of the support, the suspension assemblies comprise the pull-down rod, the limiting rod, the lifting rod and the lifting arm, the lower end of the lifting arm is connected with the outer end of the support, the upper end of the lifting rod is hinged to the upper end of the lifting arm, and the lower end of the lifting rod is hinged in a U-shaped groove at the middle end of the pull-down rod. The three-point suspension device of the tractor is characterized in that the lower pull rod piece is hinged with the lifting rod and is provided with the T-shaped fixed block, so that the lifting height can be increased, and the three-point suspension device of the tractor can be rapidly realized when the lifting force is increased, thereby ensuring that the installation is more convenient and rapid and the working efficiency of the tractor is effectively improved.

Description

Lower pull rod piece of three-point suspension device of tractor

Technical Field

The utility model belongs to the technical field of three-point suspension mechanical mechanisms of tractors, and particularly relates to a pull-down rod piece of a three-point suspension device of a tractor.

Background

As agricultural production in China is more and more focused and is valued, the efficiency requirements of some small and medium-sized agricultural machines on agricultural production operation are also higher and higher. The three-point suspension mechanism of the tractor mainly comprises two lower pull rods and an upper pull rod, and the traction force of the tractor is mainly transmitted by the two lower pull rods.

When the lower pull rod device is installed on the tractor, the pin can be repeatedly detached and installed on the connection of the lower pull rod and the lifting rod of the tractor when the lifting height or the lifting force is selected due to the need of adapting to different farm tools or different road surface environments of field operation. The traditional three-point suspension lower pull rod device of the tractor is inconvenient to detach and install due to the fact that part of the structure is heavy, and large force is needed to support parts for installation.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides the three-point suspension device pull-down rod piece of the tractor, which is convenient and quick to install and can realize rapid function conversion. When the lifting height or the lifting force is larger, the lifting force can be quickly realized, so that the installation is more convenient and quick, and the working efficiency of the tractor is effectively improved.

The scheme adopted by the utility model is as follows: the utility model provides a tractor three-point linkage drop pole piece which characterized in that: comprises a support, a pull-down rod, a limit rod, a lifting arm, a pull-up rod, a fixed block, a connecting joint and a hinged end. The front end of support be equipped with a hinge, be equipped with a plurality of connecting hole sites on the hinge, the outer end left and right sides symmetry of support is equipped with suspension assembly, wherein suspension assembly includes pull-down rod, gag lever post, lifting lever post and lifting arm, the lower extreme of pull-up rod is connected with the hinge, the lower extreme of gag lever post is connected with support lower extreme right side, the lower extreme of pull-down rod is connected with the support lower extreme, the gag lever post passes through the attach fitting and connects the rear end at the pull-down rod. The lower extreme of lifting lever articulates in the middle-end of pull-down rod, and the upper end of lifting lever articulates in the upper end of lifting arm, and the lower extreme of lifting arm is connected to the outer end of support.

Further, according to farm machinery and field operation conditions, the front end of the support is provided with a hinged end, a plurality of connecting holes are formed in the hinged end, and the connecting holes are symmetrically distributed in a left-right mode and equidistant from top to bottom.

Further, the middle end of the lower pull rod is provided with a U-shaped groove, the upper end of the U-shaped groove is provided with a square opening, and the size of the square opening is the same as that of the lower end of the fixed block.

Further, the fixed block is arranged in the square opening, and the fixed block can move up and down in the square opening.

Further, the lifting rod can move back and forth in the middle U-shaped groove of the lower pull rod.

The utility model has the beneficial effects that: the lifting rod is convenient and quick to install, the U-shaped groove is reserved between the lifting rod and the lower pull rod, the fixing block in the U-shaped groove can move up and down in the square opening, and the lifting rod not only can obtain larger lifting height, but also can be rapidly realized when larger lifting force is needed. The tractor is more convenient and quick to install, and the working efficiency of the tractor is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a left side view of a three point hitch drop down lever of the present utility model;

FIG. 2 is a schematic view of a three-point hitch pull-down bar of the present utility model;

FIG. 3 is an enlarged view of part A of the pull-down rod of the three-point hitch of the tractor of the present utility model;

description of the drawings

A support (1); a lifting rod (2); a limit rod (3); an upper pull rod (4); a lifting arm (5); a lower pull rod (6); a fixed block (7); a connection joint (8); a hinged end (9).

Detailed Description

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "outer", "inner", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.

As shown in figure 1, the utility model provides a lower pull rod piece of a three-point suspension device of a tractor, which comprises a support (1), a lower pull rod (6), a limiting rod (3), a lifting rod (2), a lifting arm (5), an upper pull rod (4), a fixed block (7), a connecting joint (8) and a hinged end (9). The front end of support (1) be equipped with a hinged end (9), be equipped with a plurality of connecting hole sites on hinged end (9), the outer left and right sides symmetry of support (1) is equipped with suspension element, wherein suspension element includes pull-down rod (6), gag lever post (3), lifting lever post (2) and lifting arm (5), the lower extreme of going up pull rod (4) is connected with hinged end (9), the lower extreme of gag lever post (3) is connected with support (1) lower extreme right side, the lower extreme of pull-down rod (6) is connected with support (1) lower extreme, gag lever post (3) are connected at the rear end of pull-down rod (6) through attach fitting (8). The lower end of the lifting rod (2) is hinged at the middle end of the lower pull rod (6), the upper end of the lifting rod (2) is hinged at the upper end of the lifting arm (5), and the lower end of the lifting arm (5) is connected to the outer end of the support (1).

According to farm machinery and field operation conditions, the front end of the support (1) is provided with a hinged end, a plurality of connecting holes are formed in the hinged end, and the connecting holes are symmetrically distributed in a left-right mode and equidistant from top to bottom. The middle end of the lower pull rod (6) is provided with a U-shaped groove, the upper end of the U-shaped groove is provided with a square opening, and the size of the square opening is the same as that of the lower end of the fixed block (7). The fixing block (7) is arranged in the square opening, and the fixing block (7) can move up and down in the square opening. The lifting rod (2) can move back and forth in the U-shaped groove at the middle end of the lower pull rod (6). The fixed block (7) moves upwards in the square opening to enable the lower end of the fixed block (7) to coincide with the upper end of the U-shaped groove, and the lifting rod (2) can move back and forth in the middle end of the lower pull rod (6) in the U-shaped groove. The lifting rod (2) moves to any one side position of two sides in the U-shaped groove at the middle end of the lower pull rod (6), and the fixing block (7) moves down in the square opening to achieve fixation.

The lifting rod (2) is fixed in a square opening when larger lifting force is to be obtained, and the lifting rod (2) is arranged at the front end of a U-shaped groove in the middle of the lower pull rod (6), and the fixing block (7) is fixed in the square opening. When a larger lifting height is required to be obtained, the fixed block (7) moves upwards, the lower end of the fixed block (7) is overlapped with the upper end of the U-shaped groove, the lifting rod (2) moves rightwards along the U-shaped groove and moves to the rightmost end of the U-shaped groove, the fixed block (7) moves downwards to the bottom end of the U-shaped groove to achieve fixation, rapid conversion of functions is realized, and working efficiency is effectively improved.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a tractor three-point linkage drop pole piece which characterized in that: including support (1), drop link (6), gag lever post (3), lifting rod (2), lifting arm (5), go up pull rod (4), fixed block (7), attach fitting (8), articulated end (9) the front end of support (1) be equipped with one articulated end (9), be equipped with a plurality of connecting hole sites on articulated end (9), the outer left and right sides symmetry of support (1) is equipped with suspension assembly, wherein suspension assembly includes drop link (6), gag lever post (3), lifting rod (2) and lifting arm (5), the lower extreme of pull rod (4) is connected with articulated end (9), the lower extreme of gag lever post (3) is connected with support (1) lower extreme right side, the lower extreme of drop link (6) is connected at the rear end of drop link (6) through attach fitting (8), the lower extreme of lifting rod (2) articulates the middle-end at drop link (6), the upper end of rod (2) articulates the lifting arm (5) and holds in the lower extreme of lifting arm (5), the lower extreme of lifting arm (5) is connected to the support (1).

2. The tractor three point hitch pull-down bar of claim 1, wherein: according to farm machinery and field operation conditions, the front end of the support (1) is provided with a hinged end (9), a plurality of connecting holes are formed in the hinged end (9), and the connecting holes are symmetrically distributed from top to bottom at equal intervals.

3. The tractor three point hitch pull-down bar of claim 1, wherein: the middle end of the lower pull rod (6) is provided with a U-shaped groove, the upper end of the U-shaped groove is provided with a square opening, and the size of the square opening is the same as that of the lower end of the fixed block (7).

4. A tractor three point hitch pull-down bar as claimed in claim 3, wherein: the fixed block (7) is arranged in the square opening, and the fixed block (7) can move up and down in the square opening.

5. The tractor three point hitch pull-down bar of claim 1, wherein: the lifting rod (2) can move back and forth in the U-shaped groove at the middle end of the lower pull rod (6).