阅读说明：本技术 一种双节履带车悬置桁架结构 (Two sections tracked vehicle suspension truss structures ) 是由 王继旭 孙一鹏 张立杰 吕鹏 王金 于 2020-08-27 设计创作，主要内容包括：一种双节履带车悬置桁架结构,涉及工程车辆技术领域,具体涉及一种履带车悬置桁架结。包括护罩总成、左侧悬挂支架和右侧悬挂支架；左侧上下布置固定孔总成包括两个圆柱钢板焊接形成的固定孔,两个固定孔为上下结构；护罩总成中心有圆形的上下设置的通孔；护罩总成两端与左侧悬挂支架和右侧悬挂支架焊接；左侧上下布置固定孔总成和右侧上下布置固定孔总成内端分别与护罩总成左右两端焊接；左侧上下布置固定孔总成、右侧上下布置固定孔总成和护罩总成内上下设置的通孔轴心相同。解决了现有履带车置桁架扭杆弹簧的中心固定孔采用前后布置的几何结构,而产生的履带车悬置桁架结构安装空间和减震性能的不足的问题。(The utility model provides a two sections tracked vehicle suspension truss structures, relates to engineering vehicle technical field, concretely relates to tracked vehicle suspension truss knot. Comprises a shield assembly, a left suspension bracket and a right suspension bracket; the left-side up-and-down arrangement fixing hole assembly comprises fixing holes formed by welding two cylindrical steel plates, and the two fixing holes are of an up-and-down structure; the center of the shield assembly is provided with a circular through hole which is arranged up and down; two ends of the shield assembly are welded with the left suspension bracket and the right suspension bracket; the inner ends of the left side upper and lower arranged fixed hole assembly and the right side upper and lower arranged fixed hole assembly are respectively welded with the left end and the right end of the shield assembly; the axes of the through holes which are arranged in the left side up and down and the right side up and down are the same. The problem of current crawler suspension truss structure installation space and damping performance not enough is solved to the central fixed orifices of truss torsion bar spring is put to the crawler and the geometry that arranges around adopting.)

1. A suspension truss structure of a double-section crawler is characterized by comprising a shield assembly, a left suspension bracket and a right suspension bracket; the left-side up-and-down arrangement fixing hole assembly comprises fixing holes formed by welding two cylindrical steel plates, the two fixing holes are of an up-and-down structure, and the two cylinders are welded into an integral structure through two tangential steel plates arranged in front and at back; the left side up-down arrangement fixing hole assembly and the right side up-down arrangement fixing hole assembly are the same in left-right symmetrical shape; the centers of the right side suspension bracket and the left side suspension bracket are respectively provided with a hole matched with the appearances of the left side up-and-down arrangement fixed hole assembly and the right side up-and-down arrangement fixed hole assembly, the left side up-and-down arrangement fixed hole assembly and the right side up-and-down arrangement fixed hole assembly respectively penetrate through the holes of the right side suspension bracket and the left side suspension bracket, and the left side up-and-down arrangement fixed hole assembly and the right side up-and-down arrangement fixed hole assembly are respectively welded with the left side suspension bracket and the right; the center of the shield assembly is provided with a circular through hole which is arranged up and down; two ends of the shield assembly are welded with the left suspension bracket and the right suspension bracket; the inner ends of the left side upper and lower arranged fixed hole assembly and the right side upper and lower arranged fixed hole assembly are respectively welded with the left end and the right end of the shield assembly; the axes of the through holes which are arranged in the left side up and down and the right side up and down are the same.

2. The double-section tracked vehicle suspension truss structure of claim 1, wherein the left side upper and lower arrangement fixing hole assembly, the right side upper and lower arrangement fixing hole assembly, the shield assembly, the left side suspension bracket and the right side suspension bracket are respectively formed by stamping steel plates and are welded.

3. The suspension truss structure of the double-section crawler as recited in claim 1 or 2, wherein the left suspension bracket 4 is an integral structure formed by welding front, back, left and right vertical steel plates, a steel plate with a top inclined to the left, and a horizontal steel plate at the bottom, and the right suspension bracket and the left suspension bracket are of the same structure with a bilateral symmetry switch.

4. A two-section crawler suspension truss structure as claimed in claim 1 or 2, wherein the top of the shield assembly 3 is a welded structure formed by a round steel plate, a bevel steel plate on the front and rear sides and a non-horizontal steel plate on the bottom.

Technical Field

The invention relates to the technical field of engineering vehicles, in particular to a suspension truss knot of a crawler.

Background

The crawler vehicle running gear mechanism is characterized in that a vehicle body is used as a support body of a running system, components such as a driving wheel, a suspension device, an inducer, a crawler tensioning device, a carrier wheel and the like are axially fixed on the vehicle body, a closed loop is formed by a crawler, and the running function of the vehicle cannot be met without the vehicle body running system. The suspension device of the action system adopts a torsion bar spring for damping vibration, and the size of the torsion bar spring penetrates through the whole vehicle body. The structure occupies a large vehicle body space, so that the vehicle body occupies a large proportion of the weight of the whole vehicle. For this purpose, the applicant invented an all-rubber independent walking system for a two-section tracked vehicle (patent application No. 2019107517948), which uses a truss as a connecting link, and axially fixes a driving wheel, a suspension device, a supporting pulley, an inducer and a tension device on the truss, and the above components cooperate to form a closed loop to satisfy the driving function of the vehicle, and the truss is mounted on the body of the tracked vehicle. Above-mentioned current tracked vehicle suspension truss most of installation torsion bar spring's center fixed orifices all is the geometrical structure who adopts the front and back to arrange, leads to the installation about the center decentraction of bogie wheel, arranges that the distance is longer around the bogie wheel, finally leads to automobile body length direction installation space to strengthen, causes tracked vehicle suspension truss structure installation space not enough. Meanwhile, the center of the left and right bogie wheels is not concentric, so that the stress of the torsion bar spring is different, and the damping performance of the running vehicle is influenced.

Disclosure of Invention

The invention provides a two-section crawler suspension truss structure, which solves the problems that the installation space and the damping performance of the crawler suspension truss structure are insufficient due to the fact that a central fixing hole of a torsion bar spring of the existing crawler suspension truss adopts a front-back arrangement geometric structure.

In order to solve the problems, the invention adopts the following technical scheme: a suspension truss structure of a double-section crawler comprises a shield assembly, a left suspension bracket and a right suspension bracket; the left-side up-and-down arrangement fixing hole assembly comprises fixing holes formed by welding two cylindrical steel plates, the two fixing holes are of an up-and-down structure, and the two cylinders are welded into an integral structure through two tangential steel plates arranged in front and at back; the left side up-down arrangement fixing hole assembly and the right side up-down arrangement fixing hole assembly are the same in left-right symmetrical shape; the centers of the right side suspension bracket and the left side suspension bracket are respectively provided with a hole matched with the appearances of the left side up-and-down arrangement fixed hole assembly and the right side up-and-down arrangement fixed hole assembly, the left side up-and-down arrangement fixed hole assembly and the right side up-and-down arrangement fixed hole assembly respectively penetrate through the holes of the right side suspension bracket and the left side suspension bracket, and the left side up-and-down arrangement fixed hole assembly and the right side up-and-down arrangement fixed hole assembly are respectively welded with the left side suspension bracket and the right; the center of the shield assembly is provided with a circular through hole which is arranged up and down; two ends of the shield assembly are welded with the left suspension bracket and the right suspension bracket; the inner ends of the left side upper and lower arranged fixed hole assembly and the right side upper and lower arranged fixed hole assembly are respectively welded with the left end and the right end of the shield assembly; the axes of the through holes which are arranged in the left side up and down and the right side up and down are the same.

Further, the suspension truss structure of the double-section crawler further has the following characteristics: the left side is arranged with the fixed hole assembly from top to bottom, the right side is arranged with the fixed hole assembly from top to bottom, the shield assembly, the left side suspension bracket and the right side suspension bracket are respectively formed by punching steel plates and are manufactured by welding connection.

Further, the suspension truss structure of the double-section crawler further has the following characteristics: the left side suspension bracket 4 is an integral structure formed by welding vertical steel plates at the front, back, left and right sides, steel plates with the tops inclined to the left respectively and horizontal steel plates at the bottoms, and the right side suspension bracket 5 and the left side suspension bracket 4 are of the same structure of a bilateral symmetry switch.

Further, the suspension truss structure of the double-section crawler further has the following characteristics: the top of the shield assembly 3 is a welding structure formed by a round steel plate, inclined steel plates at the front side and the rear side and a steel plate at the bottom part which is not horizontal.

The invention overcomes the defects of installation space and shock absorption performance of the crawler suspension truss structure in the prior art. The invention utilizes the tooling positioning and welding process, adopts the steel plate stamping and welding technology, and is provided with a crawler suspension truss structure which adopts the upper and lower fixing holes for installing a torsion bar spring, a crawler guide wheel and a tensioning device. The crawler belt vehicle has a reasonable arrangement structure, the left and right bogie wheels of the crawler belt vehicle are concentric, the front-rear distance of the bogie wheels is reduced, and the space required by the installation in the length direction of the vehicle body is greatly reduced; meanwhile, the concentricity of the left and right bogie wheels is ensured, the stress of the torsion bar spring is balanced, and the shock absorption performance of the vehicle in the running process is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a view from the direction B of FIG. 1;

fig. 4 is a view in the direction C of fig. 1.

The symbols in the drawings illustrate that: the left side is arranged up and down with fixed orifices assembly 1, the right side is arranged up and down with fixed orifices assembly 2, guard shield assembly 3, left side suspension bracket 4, right side suspension bracket 5.

Detailed Description

The present invention will be described in detail with reference to the following preferred embodiments.

As shown in fig. 1-4, a two-section tracked vehicle suspension truss structure comprises a shield assembly 3, a left suspension bracket 4 and a right suspension bracket 5, wherein the left suspension bracket 4 is an integral structure formed by welding front, back, left and right vertical steel plates, the top of the integral structure is a steel plate which is inclined to the left, and the bottom of the integral structure is a horizontal steel plate, and the right suspension bracket 5 and the left suspension bracket 4 are in the same structure of a bilateral symmetry switch; the left-side up-and-down arrangement fixing hole assembly 1 comprises fixing holes formed by welding two cylindrical steel plates, the two fixing holes are of an up-and-down structure, and the two cylinders are welded into an integral structure through two tangential steel plates arranged in front and at back; the right side up-down arrangement fixed hole assembly 2 has the same left-right symmetrical shape as the left side up-down arrangement fixed hole assembly 1; holes matched with the shapes of the left side up-and-down arrangement fixed hole assembly 1 and the right side up-and-down arrangement fixed hole assembly 2 are respectively arranged on the right side hanging brackets 5 and 6, the left side up-and-down arrangement fixed hole assembly 1 and the right side up-and-down arrangement fixed hole assembly 2 respectively penetrate through the holes of the right side hanging brackets 5 and 6, and the left side up-and-down arrangement fixed hole assembly 1 and the right side up-and-down arrangement fixed hole assembly 2 are respectively welded with the right side hanging brackets 5 and 6; the top of the shield assembly 3 is a welding structure formed by a round steel plate, inclined steel plates on the front side and the rear side and a steel plate on the bottom part which is not horizontal, and a round through hole which is arranged up and down is arranged in the center of the shield assembly 3; two ends of the shield assembly 3 are welded with the left suspension bracket 4 and the right suspension bracket 5; the inner ends of the left side upper and lower fixed hole assembly 1 and the right side upper and lower fixed hole assembly 2 are respectively welded with the left end and the right end of the shield assembly 3. The axes of the through holes which are arranged up and down in the left side fixing hole assembly 1, the right side fixing hole assembly 2 and the shield assembly 3 are the same. The left side is arranged with the fixed hole assembly 1 from top to bottom, the right side is arranged with the fixed hole assembly 2 from top to bottom, the shield assembly 3, the left side suspension bracket 4 and the right side suspension bracket 5 are respectively formed by punching steel plates and are connected by welding. And the fixed holes which are vertically arranged are respectively provided with a torsion bar spring, and further provided with components such as an inducer of the tracked vehicle, a tensioning device and the like.

According to the invention, fixing holes are arranged up and down, the left suspension bracket is mechanically processed and punched to form a high-strength steel plate to complete an independent assembly through a welding process, and the independent assembly is fixed by a welding combined tool; then, arranging fixing holes up and down, completing an independent assembly by the right suspension bracket through machining and punch forming of a high-strength steel plate through a welding process, and fixing by using a welding combined tool; and finally, punching and forming a high-strength steel plate on the shield assembly to complete the independent assembly through a welding process.