Chassis structure of excavator

Abstract

The utility model discloses a chassis structure of an excavator, which belongs to the technical field of excavators and comprises a heightened base and a hydraulic pipeline, the hydraulic pipeline is arranged in the heightened base, the upper end and the lower end of the heightened base are respectively provided with a plurality of threaded holes, and the threaded holes are arranged at intervals. A butter pool bottom plate is arranged at the upper end in the heightened base, and the side part of the butter pool bottom plate is connected with the inner wall surface of the heightened base; a cylinder is arranged in the middle of the butter pool bottom plate, a rotary connector is arranged in the middle of the cylinder, and the rotary connector is installed on the cylinder and connected with a hydraulic pipeline. The cab can be prevented from being submerged in seawater, reasonable arrangement of the hydraulic pipeline is ensured, seawater is prevented from permeating into the hydraulic pipeline of the chassis structure, and the excavator can normally operate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to excavator technical field, concretely relates to a chassis structure of excavator. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute prior art.

[0003] The excavator, also known as excavating machinery, is a kind of earth-moving machinery that uses a shovel to excavate materials higher or lower than the surface of the machine and loads them into transport vehicles or unloads them to the stockyard. The excavated materials of the excavator are mainly soil, coal, sand and soil and rock after pre-loosening.

[0004] At present, the excavator is widely used for reclamation. When reclamation, if the water depth is too high, the cab of the excavator will be submerged, and thus the excavator cannot operate. Therefore, the chassis structure needs to be improved to avoid seawater from entering the cab. The chassis structure includes the chassis and the hydraulic pipe inside the chassis. Improving the chassis structure will affect the arrangement of the hydraulic pipe. If seawater seeps into the chassis structure, it will affect the normal operation of the hydraulic pipe, and the cab cannot turn the direction. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a chassis structure of excavator, which can avoid the cab from being submerged in seawater, ensure the reasonable arrangement of the hydraulic pipe, prevent seawater from seeping into the hydraulic pipe of the chassis structure, and make the excavator operate normally.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A chassis structure of excavator, comprising a raised base and a hydraulic pipe, the hydraulic pipe is arranged in the raised base, the upper and lower ends of the raised base are provided with threaded holes, and a plurality of threaded holes are arranged at intervals; a grease pool bottom plate is arranged at the upper end in the raised base, the side of the grease pool bottom plate is connected with the inner wall surface of the raised base; a cylinder is arranged at the middle of the grease pool bottom plate, a swivel joint is arranged at the middle of the cylinder, the swivel joint is installed on the cylinder, and the swivel joint is connected with the hydraulic pipe.

[0008] Further, the hydraulic pipe comprises a first hose, the lower end of the first hose is provided with a second hose, one end of the second hose is provided with a third hose, and one end of the third hose is provided with a fourth hose.

[0009] Further, one end of the first hose is connected with the swivel joint, and the other end of the first hose is connected with the pipe on the track chassis.

[0010] Further, one end of the second hose is connected with the swivel joint, and the other end of the second hose is connected with the pipeline on the track chassis.

[0011] Further, one end of the third hose is connected with the swivel joint, and the other end of the third hose is connected with the pipeline on the track chassis.

[0012] Further, one end of the fourth hose is connected with the third hose, and the other end of the fourth hose is connected with the pipeline on the track chassis.

[0013] Further, a split flange is arranged on the swivel joint, a threaded hole is arranged on the split flange, and an internal hexagonal cylindrical head screw is arranged in the threaded hole.

[0014] Further, the first hose and the second hose are connected with the split flange through the internal hexagonal cylindrical head screw, and sealing rings are arranged at the connecting positions.

[0015] Further, the upper end of the grease pool bottom plate is provided with an engaging piece connected with the inner wall surface of the heightened base, and one side of the cylinder is provided with a mounting seat arranged on the grease pool bottom plate.

[0016] Further, the upper end of the heightened base is connected with the cab through bolts, and the lower end of the heightened base is connected with the track chassis through bolts.

[0017] Compared with the prior art, the excavator has the advantages and positive effects that:

[0018] The heightened base is arranged, so that the height of the cab is increased, and thus when the excavator is used for reclamation, seawater is prevented from entering the cab, the cylinder is arranged to mount the swivel joint, the pipeline of the chassis is connected with the pipeline of the track chassis through the swivel joint, the split flange, the sealing ring and the screw are arranged to ensure that the pipeline and the swivel joint are firmly connected and leakage is avoided, so that the reasonable arrangement of the hydraulic pipeline is ensured, seawater is prevented from penetrating into the hydraulic pipeline of the chassis structure, and the excavator can normally operate. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings constituting a part of the specification of the present application are used to provide further understanding of the present application, and the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.

[0020] Figure 1 is a top view of the chassis structure of the present application;

[0021] Figure 2 is a front view of the chassis structure of the present application;

[0022] Figure 3This is the hydraulic pipeline diagram of this utility model;

[0023] In the diagram: 1. Split flange; 2. Sealing ring; 3. Socket head cap screw; 4. First hose; 5. Second hose; 6. Third hose; 7. Fourth hose; 8. Elevated base; 9. Grease tank bottom plate; 10. Rotary joint; 11. Cylinder; 12. Mounting base; 13. Tracked undercarriage; 14. Engaging parts. Detailed Implementation

[0024] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] Currently, excavators are widely used in land reclamation. If the water depth is too high during land reclamation, it will submerge the excavator's cab, causing the excavator to become unable to operate. Therefore, it is necessary to improve the chassis structure to prevent seawater from entering the cab. The chassis structure includes the chassis and the hydraulic lines inside the chassis. Improving the chassis structure will affect the layout of the hydraulic lines. Furthermore, if seawater seeps into the chassis structure, it will affect the normal operation of the hydraulic lines, causing the cab to be unable to turn.

[0026] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a chassis structure for an excavator, as shown below. Figure 1 As shown, it includes a raised base 8 and hydraulic pipelines. The hydraulic pipelines are arranged inside the raised base 8. Threaded holes are provided at both the upper and lower ends of the raised base 8, and several threaded holes are arranged at intervals. A grease tank bottom plate 9 is provided at the upper end inside the raised base 8. The side of the grease tank bottom plate 9 is connected to the inner wall of the raised base 8. A cylinder 11 is provided in the middle of the grease tank bottom plate 9. A rotary joint 10 is provided in the middle of the cylinder 11. The rotary joint 10 is installed on the cylinder 11 and is connected to the hydraulic pipelines.

[0027] By raising the base 8, the height of the cab is increased, thus preventing seawater from entering the cab when the excavator is carrying out land reclamation. A cylindrical 11 is installed to install a rotary joint 10, which connects the pipelines of the chassis and the tracked chassis 13. A split flange 1, a sealing ring 2, and screws are installed to ensure a firm connection between the pipelines and the rotary joint 10 and to prevent leakage. This ensures the reasonable layout of the hydraulic pipelines and prevents seawater from seeping into the hydraulic pipelines of the chassis structure, allowing the excavator to operate normally.

[0028] like Figure 3As shown, the hydraulic pipeline includes a first hose 4, a lower end of the first hose 4 is provided with a second hose 5, one end of the second hose 5 is provided with a third hose 6, one end of the third hose 6 is provided with a fourth hose 7. One end of the first hose 4 is connected with the swivel joint 10, the other end of the first hose 4 is connected with the pipeline on the track chassis 13. One end of the second hose 5 is connected with the swivel joint 10, the other end of the second hose 5 is connected with the pipeline on the track chassis 13. One end of the third hose 6 is connected with the swivel joint 10, the other end of the third hose 6 is connected with the pipeline on the track chassis 13. One end of the fourth hose 7 is connected with the third hose 6, the other end of the fourth hose 7 is connected with the pipeline on the track chassis 13.

[0029] The first hose 4 and the second hose 5 control the forward and reverse of the left walking motor, the third hose 6 and the fourth hose 7 control the forward and reverse of the right walking motor. The main valve is linked through the corresponding oil port on the swivel joint 10, and the oil inlet and oil return of the walking motor are controlled by the main valve respectively, so as to achieve various operations such as forward, steering and reverse of the whole vehicle.

[0030] The swivel joint 10 is provided with a split flange 1, the split flange 1 is provided with a threaded hole, and an internal hexagonal cylindrical head screw 3 is arranged in the threaded hole. The first hose 4 and the second hose 5 are connected with the split flange 1 through the internal hexagonal cylindrical head screw 3, and sealing rings 2 are arranged at the connection positions. The split flange 1, the internal hexagonal cylindrical head screw 3 and the sealing ring 2 are used for connecting the first hose 4 and the second hose 5 with the swivel joint 10, so as to ensure firm connection and avoid leakage, and the sealing ring 2 is an O-shaped sealing ring 2.

[0031] An engaging piece 14 is arranged at the upper end of the grease pool bottom plate 9, the engaging piece 14 is connected with the inner wall surface of the raised base 8, the engaging piece 14 is an inner ring gear, and the engaging piece 14 is used for engaging with the swivel motor; a mounting seat 12 is arranged on one side of the cylinder 11. The grease pool bottom plate 9 is used for containing grease, the swivel joint 10 is used for connecting the pipeline of the upper vehicle and the lower vehicle, and the cylinder 11 is used for placing the grease into the chassis. When the grease needs to be replaced, the mounting seat 12 is used, a circular hole is arranged on the mounting seat 12, and the unnecessary grease flows down from the circular hole.

[0032] The upper end of the raised base 8 is connected with the cab through bolts, and the lower end of the raised base 8 is connected with the track chassis 13 through bolts. A plurality of threaded holes are arranged at the upper and lower ends of the raised base 8, and the raised base 8 is connected with the cab and the track chassis 13 respectively through the bolts penetrating the threaded holes, so that the connection is firm enough.

[0033] The utility model discloses above although the specific embodiment of the utility model has been described in conjunction with the drawing, is not the limit to the protection scope of the utility model, and the person skilled in the art should understand that on the basis of the technical scheme of the utility model, various modifications or deformation that the person skilled in the art can make without paying creative labour are still within the protection scope of the utility model.

Claims

1. A chassis structure for an excavator, characterized in that, The device includes a raised base and hydraulic lines. The hydraulic lines are installed inside the raised base. Threaded holes are provided at both the upper and lower ends of the raised base, with several threaded holes spaced apart. A grease tank bottom plate is provided at the upper end of the raised base, and the side of the grease tank bottom plate is connected to the inner wall of the raised base. A cylinder is provided in the middle of the grease tank bottom plate, and a rotary joint is provided in the middle of the cylinder. The rotary joint is installed on the cylinder and is connected to the hydraulic lines.

2. The chassis structure of an excavator as described in claim 1, characterized in that, The hydraulic pipeline includes a first hose, a second hose at the lower end of the first hose, a third hose at one end of the second hose, and a fourth hose at one end of the third hose.

3. The chassis structure of an excavator as described in claim 2, characterized in that, One end of the first hose is connected to a rotary joint, and the other end of the first hose is connected to a pipeline on the tracked chassis.

4. The chassis structure of an excavator as described in claim 2, characterized in that, One end of the second hose is connected to the rotary joint, and the other end of the second hose is connected to the pipeline on the tracked chassis.

5. The chassis structure of an excavator as described in claim 2, characterized in that, One end of the third hose is connected to a rotary joint, and the other end of the third hose is connected to a pipeline on the tracked chassis.

6. The chassis structure of an excavator as described in claim 2, characterized in that, One end of the fourth hose is connected to the third hose, and the other end of the fourth hose is connected to the pipeline on the tracked chassis.

7. The chassis structure of an excavator as described in claim 2, characterized in that, The rotary joint is provided with a split flange, and the split flange is provided with a threaded hole, in which a hexagon socket head cap screw is installed.

8. The chassis structure of an excavator as described in claim 7, characterized in that, Both the first hose and the second hose are connected to the split flange by hexagon head screws, and sealing rings are provided at the connection points.

9. The chassis structure of an excavator as described in claim 1, characterized in that, The upper end of the bottom plate of the grease tank is provided with a meshing component, which is connected to the inner wall of the raised base; a mounting seat is provided on one side of the cylinder, and the mounting seat is placed on the bottom plate of the grease tank.

10. The chassis structure of an excavator as described in claim 1, characterized in that, The upper end of the raised base is connected to the cab by bolts, and the lower end of the raised base is connected to the tracked chassis by bolts.

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