CN215398982U

CN215398982U - Hydraulic excavator rises and tightly installs

Info

Publication number: CN215398982U
Application number: CN202121664777.XU
Authority: CN
Inventors: 李金城
Original assignee: Yichang Sany Machinery Co ltd
Current assignee: Yichang Sany Machinery Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-04
Anticipated expiration: 2031-07-21

Abstract

The utility model provides a tensioning device of a hydraulic excavator, which comprises a driving main wheel, a tensioning main wheel, a support frame and a crawler belt, and is characterized in that: the device comprises a support frame, a plurality of sliding tensioning auxiliary wheels arranged on the top of the support frame, a fixing plate arranged on one side of each tensioning main wheel, a plurality of sliding tensioning auxiliary wheels clamped in a track, a bearing seat used for fixing two ends of each tensioning main wheel to rotate on the fixing plate, a first oil cylinder arranged on one side of the fixing plate, a first oil cylinder arranged at the bottom of the first oil cylinder and fixedly connected with the support frame, and a piston rod of the first oil cylinder. The driving main wheel at the front end drives the track to operate, the tensioning main wheel at the rear end plays a role in driven tensioning, the tensioning main wheel can be effectively abutted to the track through the first oil cylinder and the spring to play a role in tensioning, the tensioning main wheel is abutted to the sliding groove in the supporting frame through the bearing blocks at the two ends to be adjusted, the tensioning adjustment is more smooth and reliable, the top of the track is pushed and tensioned through the tensioning auxiliary wheel, the operation is simple and convenient, the tensioning of the track is ensured, and the normal operation of the excavator is realized.

Description

Hydraulic excavator rises and tightly installs

Technical Field

The utility model relates to the field of excavators, in particular to a tensioning device of a hydraulic excavator.

Background

Excavators, also known as excavating machines, also known as excavators, are earth moving machines that excavate material above or below a load bearing surface with a bucket and load it into a transport vehicle or unload it to a stockyard. The materials excavated by the excavator mainly comprise soil, coal, silt, soil subjected to pre-loosening and rocks. In view of the development of construction machines in recent years, the development of excavators is relatively fast, and the excavator has become one of the most important construction machines in construction.

The most tracks of the existing excavator are arranged, when operation is carried out on a place with more muddy gravels, the tracks often fall off from a walking system in the moving process of the excavator, the tracks cannot be normally meshed with the driving main wheels, normal use of the excavator is affected, and equipment maintenance time is long, time and labor are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a tensioning device of a hydraulic excavator, which solves the problems that a crawler belt falls off in the moving process of the excavator, the normal use of the excavator is influenced, the equipment maintenance time is long, and time and labor are wasted.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: including drive main wheel, tight main wheel that rises, support frame and track, characterized by: the device comprises a support frame, a plurality of sliding tensioning auxiliary wheels arranged on the top of the support frame, a fixing plate arranged on one side of each tensioning main wheel, a plurality of sliding tensioning auxiliary wheels clamped in a track, a bearing seat used for fixing two ends of each tensioning main wheel to rotate on the fixing plate, a first oil cylinder arranged on one side of the fixing plate, a first oil cylinder arranged at the bottom of the first oil cylinder and fixedly connected with the support frame, and a piston rod of the first oil cylinder.

In the preferred scheme, be equipped with the spout in support frame one end both sides, the bearing frame that rises and tightly leans on at the tight main round both ends to slide in the spout.

In the preferred scheme, a connecting sleeve is arranged between the first oil cylinder and the fixing plate, one end of the connecting sleeve is fixed on the fixing plate, and the other end of the connecting sleeve is fixedly connected with the end part of the piston rod of the first oil cylinder through a nut.

In the preferred scheme, a spring is arranged on the outer side of a piston rod of the first oil cylinder, one end of the spring is abutted against the first oil cylinder, and the other end of the spring is abutted against the connecting sleeve.

In the preferred scheme, a plurality of fixed cylinders are fixedly arranged at the top of the supporting frame, a sliding fixed rod is arranged in each fixed cylinder, and the tensioning auxiliary wheel abuts against the end part of the corresponding fixed rod to rotate.

In the preferred scheme, a second oil cylinder is fixedly arranged at the bottom of the fixed cylinder, and the end part of a piston rod of the second oil cylinder is fixedly connected with the fixed rod.

The utility model provides a tensioning device of a hydraulic excavator, wherein a driving main wheel at the front end drives a track to operate, a tensioning main wheel at the rear end plays a role in driven tensioning, the tensioning main wheel can be effectively abutted against the track through a first oil cylinder and a spring to play a role in tensioning, the tensioning main wheel is abutted against a sliding groove on a support frame through bearing blocks at two ends to be adjusted, tensioning adjustment is smoother and more reliable, and jacking tensioning is carried out on the top of the track through a tensioning auxiliary wheel, so that the operation is simple and convenient, and the tensioning of the track is ensured, so that the excavator can normally operate.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is an isometric view of the overall structure of the present invention;

FIG. 2 is a front elevational view of the overall construction of the present invention;

FIG. 3 is a partial cross-sectional view of the utility model A-A;

FIG. 4 is a partial cross-sectional view of the utility model B-B;

FIG. 5 is an exploded view of the main tension wheel and the support frame of the present invention;

in the figure: a crawler belt 1; a support frame 2; a chute 201; a driving main wheel 3; a tensioning main wheel 4; a tension auxiliary wheel 5; a fixed cylinder 6; a fixing rod 7; a bearing seat 8; a fixed plate 9; a connecting sleeve 10; a first cylinder 11; a spring 12; and a second cylinder 13.

Detailed Description

Example 1

As shown in fig. 1-5, a hydraulic excavator rises and tightly installs, including drive main wheel 3, rise tight main wheel 4, support frame 2 and track 1, characterized by: a plurality of gliding tight auxiliary rollers 5 that rise in support frame 2 top, the tight auxiliary roller 5 card that rises is in track 1, and tight main wheel 4 one side that rises is equipped with fixed plate 9, and tight main wheel 4 both ends are fixed through bearing frame 8 and are rotated on fixed plate 9, and fixed plate 9 one side is equipped with first hydro-cylinder 11, and the bottom of first hydro-cylinder 11 is fixed on support frame 2, and the piston rod of first hydro-cylinder 11 and fixed plate 9 fixed connection. With the structure, the tensioning main wheel 4 is pushed on the crawler 1 through the first oil cylinder 11, so that the tensioning crawler 1 is tensioned, and meanwhile, the plurality of tensioning auxiliary wheels 5 are pushed on the top of the crawler 1 to achieve tensioning, so that the crawler 1 is tensioned in place, and the excavator can run normally.

In the preferred scheme, be equipped with spout 201 in support frame 2 one end both sides, the bearing frame 8 that rises and tightly leans on at 4 both ends of main wheel to slide in spout 201. With the structure, the tensioning main wheel 4 is pushed by the first oil cylinder 11, so that the bearing blocks 8 at two ends of the tensioning main wheel 4 are abutted against the sliding groove 201 to slide, and the pushing tensioning adjustment is more accurate.

In the preferred scheme, a connecting sleeve 10 is arranged between the first oil cylinder 11 and the fixing plate 9, one end of the connecting sleeve 10 is fixed on the fixing plate 9, and the other end of the connecting sleeve 10 is fixedly connected with the end part of the piston rod of the first oil cylinder 11 through a nut. With the structure, the first oil cylinder 11 pushes the connecting sleeve 10 to drive the fixing plate 9 and the bearing block 8, so as to drive the tensioning main wheel 4 to move the tensioning crawler 1.

In a preferable scheme, a spring 12 is arranged outside a piston rod of the first oil cylinder 11, one end of the spring 12 abuts against the first oil cylinder 11, and the other end of the spring 12 abuts against the connecting sleeve 10. With the structure, the spring 12 plays a role in buffering and damping between the first oil cylinder 11 and the connecting sleeve 10, and can also tension the track 1.

In the preferred scheme, a plurality of fixed cylinders 6 are fixedly arranged at the top of the support frame 2, sliding fixed rods 7 are arranged in the fixed cylinders 6, and the tensioning auxiliary wheel 5 abuts against the end parts of the fixed rods 7 to rotate. With the structure, the tension auxiliary wheel 5 is clamped in the track 1 to rotate, and the fixing rod 7 pushes the tension auxiliary wheel 5 to play a tensioning role in the track 1.

In the preferred scheme, the bottom of the fixed cylinder 6 is fixedly provided with a second oil cylinder 13, and the end part of a piston rod of the second oil cylinder 13 is fixedly connected with the fixed rod 7. With the structure, the second oil cylinder 13 can drive the fixing rod 7 to push the tensioning auxiliary wheel 5, so that the top of the crawler 1 is tensioned.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a hydraulic shovel rises and tightly installs, includes drive main wheel (3), rises and tightly main wheel (4), support frame (2) and track (1), characterized by: a plurality of gliding tight auxiliary rollers (5) that rise in support frame (2) top, tight auxiliary roller (5) card that rise is in track (1), tight main wheel (4) one side that rise is equipped with fixed plate (9), tight main wheel (4) both ends are fixed through bearing frame (8) and are rotated on fixed plate (9), fixed plate (9) one side is equipped with first hydro-cylinder (11), the bottom of first hydro-cylinder (11) is fixed on support frame (2), the piston rod and fixed plate (9) fixed connection of first hydro-cylinder (11).

2. The hydraulic excavator tensioning device of claim 1, wherein: sliding grooves (201) are formed in two sides of one end of the supporting frame (2), and bearing blocks (8) at two ends of the tensioning main wheel (4) are abutted against the sliding grooves (201) to slide.

3. The hydraulic excavator tensioning device of claim 1, wherein: a connecting sleeve (10) is arranged between the first oil cylinder (11) and the fixing plate (9), one end of the connecting sleeve (10) is fixed on the fixing plate (9), and the other end of the connecting sleeve (10) is fixedly connected with the end part of the piston rod of the first oil cylinder (11) through a nut.

4. The tensioning device of the hydraulic excavator as claimed in claim 3, wherein: a spring (12) is arranged on the outer side of a piston rod of the first oil cylinder (11), one end of the spring (12) abuts against the first oil cylinder (11), and the other end of the spring (12) abuts against the connecting sleeve (10).

5. The hydraulic excavator tensioning device of claim 1, wherein: the top of the support frame (2) is fixedly provided with a plurality of fixed cylinders (6), the fixed cylinders (6) are internally provided with sliding fixed rods (7), and the tensioning auxiliary wheel (5) is abutted against the end parts of the fixed rods (7) to rotate.

6. The tensioning device of the hydraulic excavator as claimed in claim 5, wherein: the bottom of the fixed cylinder (6) is fixedly provided with a second oil cylinder (13), and the end part of a piston rod of the second oil cylinder (13) is fixedly connected with the fixed rod (7).