CN113026856A

CN113026856A - Digging machine soft ground anti-sinking device

Info

Publication number: CN113026856A
Application number: CN202011620182.4A
Authority: CN
Inventors: 吴金锋; 耿家文; 黄金辉; 张亚龙; 武佰全; 赵光; 汤中连; 崔奇
Original assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Current assignee: Xuzhou XCMG Excavator Machinery Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-06-25
Anticipated expiration: 2040-12-30
Also published as: CN113026856B

Abstract

The invention relates to the technical field of excavators, in particular to an anti-sinking device for soft ground of an excavator, which comprises a supporting plate, an oil cylinder, an upper lug plate, a pin shaft and a frame; the upper surface of the bearing plate is provided with a plurality of upper ear plates, and the upper ear plates are provided with holes; the oil cylinder is connected to the hole of the upper lug plate through a pin shaft; the oil cylinder is connected to the frame through a bolt; the two ends of the bearing plate are provided with bulges, and the lower surface of the bearing plate is provided with a plurality of grooves. The technical scheme of the invention greatly increases the contact area between the machine and the ground, and can effectively prevent the machine from sinking into the soft ground during the operation.

Description

Digging machine soft ground anti-sinking device

Technical Field

The invention relates to the technical field of excavators, in particular to an anti-sinking device for a soft ground of an excavator.

Background

Crawler-type excavator can make the machine be applied to multiple operating mode because the use of track, for example the operating mode such as earthwork, mine and the wetland that has certain hardness, but under the operating mode of relatively soft (like mud ground, marshland etc.), often can't use because the machine gets into behind this kind of operating mode, the track can be sunk into deeply, can appear after the track operation because the circumstances of skidding and unable normal walking.

In many current applications, when the ground is relatively soft (such as mud and marshland), a method of widening the track shoe is generally adopted, so that the contact area of the machine and the ground is increased, and the contact pressure of the machine and the ground is reduced.

In the prior art, the method for increasing the width of the track shoe to increase the ground contact area has certain limitation, can only be increased in a smaller range, and if the increase is too much, the situation that the excavator cannot turn due to too large resistance when turning can occur on one hand. On the other hand, since the height of the middle portion of the frame is generally higher than the upper surface of the track, if the width of the track shoe is increased too much, interference with the frame may occur.

Disclosure of Invention

Aiming at the problems, the invention provides the sinking prevention device for the soft ground of the excavator, which greatly increases the contact area between the machine and the ground and can effectively prevent the machine from sinking into the soft ground during the operation compared with the traditional method.

The technical scheme provided by the invention is as follows:

an anti-sinking device for soft ground of an excavator comprises a bearing plate, an oil cylinder, an upper lug plate, a pin shaft and a frame; the upper surface of the bearing plate is provided with a plurality of upper ear plates, and the upper ear plates are provided with holes; the oil cylinder is connected to the hole of the upper lug plate through a pin shaft; the oil cylinder is connected to the frame through a bolt; the two ends of the bearing plate are provided with bulges, and the lower surface of the bearing plate is provided with a plurality of grooves.

Furthermore, the digging machine soft ground anti-sinking device is arranged between the crawler belts on the two sides.

Further, the width of the bearing plate is smaller than the distance between the two side tracks.

Further, the length of the bearing plate is less than the length of the track.

Further, the protrusion is arc-shaped.

Furthermore, the number of the grooves is 5-10.

Furthermore, the oil cylinders are provided with two groups which are respectively arranged in front of and behind the machine.

The invention also provides a use method of the device for preventing the excavator from sinking into the soft ground, the support plate is lifted by the oil cylinder when the excavator works under the working condition of the common ground, and the support plate is lowered when the ground is softer, so that the grounding area is increased, and the excavator is prevented from sinking.

Further, corresponding the bolt hole on the oil cylinder to the mounting hole of the frame, and then screwing in the bolt, thereby fixing the oil cylinder on the frame; the hole of the upper ear plate arranged on the bearing plate is corresponding to the hole on the oil cylinder, and then the pin shaft is pressed in.

The invention also provides an excavator which is provided with the anti-sinking device for the soft ground of the excavator.

Advantageous effects

When the machine works under the working conditions of wetlands such as mud, marshland and the like, the piston rod of the oil cylinder can descend to support the supporting plate on the ground, compared with the traditional method, the contact area between the machine and the ground is greatly increased, and the machine can be effectively prevented from sinking into the soft ground during working. When the machine needs to walk, the supporting plate is properly lifted according to the soft condition of the ground, but the supporting plate does not fall off the ground, so that the friction assistance of the supporting plate and the ground can be reduced, meanwhile, the contact stress between the two tracks and the ground is increased, and the machine can still normally walk under the working condition of a soft wetland with the supporting plate, thereby solving the problems of limited increase of the grounding area and large walking resistance in the traditional method.

In the technical scheme of the invention, the supporting plate has a lifting function at the same time, and can be supported on the ground when needed, so that the contact area of the machine is increased, and the machine is prevented from sinking. Meanwhile, the use of the two ends of the supporting plate are protruded, so that the running resistance of the machine can be reduced, the application of the supporting plate groove increases the rigidity of the supporting plate, the weight of the supporting plate can be effectively reduced, and the weight of the machine is prevented from being increased due to excessive weight increase.

Drawings

FIG. 1 is a schematic view of an anti-sinking device for a soft ground of an excavator;

FIG. 2 is a view showing a structure of a support plate.

Detailed Description

Example 1

The anti-sinking device for the soft ground of the excavator is arranged between two side tracks; the device comprises a supporting plate 1, an oil cylinder 2, a bolt 3, an upper lug plate 4, a pin shaft 5 and a frame 6. The upper surface of the bearing plate 1 is provided with a plurality of upper ear plates 4, and the upper ear plates 4 are provided with round holes. The two ends of the support plate 1 are provided with protrusions 7, the protrusions 7 are arc-shaped, and the lower surface of the support plate 1 is provided with a plurality of grooves 8. The number of the grooves is 5-10; the arrangement of the groove can increase the rigidity of the bearing plate, and simultaneously destroy the surface tension of water in the wet ground, so that the lifting resistance of the bearing plate is smaller, and the bearing plate has better supporting effect; the oil cylinder 2 is connected in a round hole of the upper lug plate 4 through a pin shaft 5; the oil cylinder 2 is connected to a frame 6 through a bolt 3. When the device works on the common ground, the supporting plate can be lifted by the oil cylinder, and when the ground is soft, the supporting plate is lowered, so that the grounding area is increased, and the machine is prevented from sinking. The lifting height range of the supporting plate can be set to be 0-600 mm; the width of the bearing plate is smaller than the distance between the two side tracks.

When the mounting is carried out, the bolt holes on the oil cylinder 2 correspond to the mounting holes of the frame 6, and then the bolts 3 are screwed in, so that the oil cylinder 2 is fixed on the frame 6. The hole of the upper ear plate 4 arranged on the bearing plate 1 corresponds to the hole on the oil cylinder 2, and then the pin shaft 5 is pressed in.

In another embodiment, two sets of lift cylinders are provided, one at the front and one at the rear of the machine. When the machine works on soft ground such as mud, marsh and the like, the machine can be prevented from sinking in, and the normal walking is ensured.

The invention also provides an excavator which is provided with the device for preventing the excavator from sinking into the soft ground.

Claims

1. An anti-sinking device for soft ground of an excavator is characterized by comprising a bearing plate, an oil cylinder, an upper lug plate, a pin shaft and a frame; the upper surface of the bearing plate is provided with a plurality of upper ear plates, and the upper ear plates are provided with holes; the oil cylinder is connected to the hole of the upper lug plate through a pin shaft; the oil cylinder is connected to the frame through a bolt; the two ends of the bearing plate are provided with bulges, and the lower surface of the bearing plate is provided with a plurality of grooves.

2. The soft ground anti-sinking device of an excavator according to claim 1, wherein the soft ground anti-sinking device of the excavator is disposed between the two side crawlers.

3. The soft ground intrusion prevention device of an excavator according to claim 1, wherein the width of the support plate is smaller than the distance between the two side crawlers.

4. The soft ground intrusion prevention device of an excavator according to claim 1, wherein the length of the support plate is less than the length of the track.

5. The soft ground intrusion prevention device of an excavator according to claim 1, wherein the projection is arc-shaped.

6. The soft ground anti-sinking device of the excavator according to claim 1, wherein the number of the grooves is 5-10.

7. The soft ground intrusion prevention device of an excavator according to claim 1, wherein the cylinders are provided in two sets, respectively provided in front and rear of the machine.

8. The use method of the digging machine soft ground anti-sinking device according to claim 1, characterized in that when the digging machine is working under normal ground conditions, the supporting plate is lifted by the oil cylinder, and when the ground is softer, the supporting plate is lowered to increase the ground contact area and prevent the machine from sinking.

9. The use method of the digging machine soft ground anti-sinking device according to claim 1, characterized in that the bolt holes on the oil cylinder are corresponding to the mounting holes of the frame, and then the bolts are screwed in, thereby fixing the oil cylinder to the frame; the hole of the upper ear plate arranged on the bearing plate is corresponding to the hole on the oil cylinder, and then the pin shaft is pressed in.

10. An excavator, wherein the excavator is provided with the digging machine soft ground anti-sinking device as claimed in any one of claims 1 to 7.