CN212452843U

CN212452843U - Scraper knife mechanism and bulldozer

Info

Publication number: CN212452843U
Application number: CN202020728077.1U
Authority: CN
Inventors: 辛宇; 薛海龙; 赵延礼
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Heavy Industry Science and Technology Co Ltd Weinan Branch
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Heavy Industry Science and Technology Co Ltd Weinan Branch
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2021-02-02
Anticipated expiration: 2030-05-06

Abstract

The utility model discloses a scraper knife mechanism and a bulldozer, wherein the scraper knife mechanism comprises a pushing frame (10), a scraper knife body (20), an inclined oil cylinder (30) and an oil pipe (40); one end of the pushing frame (10) is connected with the shovel body (20), and the other end of the pushing frame is used for being connected with a bulldozer body; the cylinder body of the inclined oil cylinder (30) is connected to one of the pushing frame (10) and the scraper body (20), the piston rod of the inclined oil cylinder (30) is connected to the other of the pushing frame (10) and the scraper body (20), an oil port (31) is formed in the cylinder body, and the oil port (31) is formed in the upward side of the cylinder body; one end of the oil pipe (40) is connected with the oil port (31), and the other end of the oil pipe is connected to a driving part on the vehicle body. The utility model discloses a spiller mechanism can guarantee that the slope hydro-cylinder still can normally work in abominable operating mode.

Description

Scraper knife mechanism and bulldozer

Technical Field

The utility model relates to a bull-dozer technical field specifically relates to a spiller mechanism and bull-dozer.

Background

A bulldozer is a self-propelled shovel-type earth moving machine which peels off and shovels soil, sand, stone, coal, and the like on the earth surface by a front working device (a shovel body), and conveys the pushed materials to the front for a certain distance to be stacked. In the prior art, some bulldozers can tilt a blade body, that is, tilt the blade body relative to the ground by a tilt cylinder disposed between a pushing frame and the blade body, so as to level the ground. However, in general, the operation condition of the bulldozer is poor, and particularly, when the bulldozer operates in an earth and rockfill pit, the influence of earth and rockfill on the bulldozer is large, and the problem that the tilt cylinder cannot normally operate is often caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that prior art exists, providing a spiller mechanism and bull-dozer, this spiller mechanism can guarantee that the tilting cylinder still can normally work in abominable operating mode.

In order to achieve the above object, the present invention provides a scraper knife mechanism, which comprises a pushing frame, a scraper knife body, an inclined oil cylinder and an oil pipe; one end of the pushing frame is connected with the scraper body, and the other end of the pushing frame is used for being connected with a bulldozer body; the cylinder body of the inclined oil cylinder is connected to one of the pushing frame and the shovel body, the piston rod of the inclined oil cylinder is connected to the other of the pushing frame and the shovel body, an oil port is formed in the cylinder body, and the oil port is formed in the upward side of the cylinder body; one end of the oil pipe is connected with the oil port, and the other end of the oil pipe is connected to the driving part on the vehicle body.

Optionally, the scraper mechanism includes a protective cover, the pushing frame is a hollow structure and is provided with a communication port, and the other end of the oil pipe extends into the pushing frame through the communication port and is connected to the driving part; the protective cover is arranged between the oil port and the communication port so as to cover the oil pipe in the oil pipe.

Optionally, a cylinder body of the tilting cylinder is connected to the pushing frame, and a piston rod of the tilting cylinder is connected to the scraper body.

Optionally, the pushing frame is provided with a support, the cylinder body is hinged to the support, and the piston rod is hinged to the scraper knife body.

Optionally, the communication opening is formed in one side of the support, which is far away from the scraper body.

Optionally, the protection cover includes first protection shield and second protection shield of interconnect, first protection shield covers and locates the intercommunication mouth, the second protection shield covers and locates the hydraulic fluid port, wherein, the second protection shield is diameter-variable structure, the path end of second protection shield is kept away from first protection shield.

Optionally, the first protection plate is provided with a mounting hole, and the first protection plate is mounted on the pushing frame through the mounting hole by a fastener.

Optionally, the protective cover comprises a sheath arranged along an edge of the mounting hole.

Optionally, the shovel body includes a conduit portion for connecting with the driving portion, and the other end of the oil pipe is connected to the conduit portion.

The utility model also provides a bulldozer, the bulldozer includes automobile body and foretell spiller mechanism, the one end of the top frame that pushes away of spiller mechanism is connected the automobile body, oil pipe's one end is connected to drive division on the automobile body.

According to the technical scheme, one end of the pushing frame is connected with the scraper blade body, the other end of the pushing frame is connected with the bulldozer body, the cylinder body of the inclined oil cylinder is connected with one of the pushing frame and the scraper blade body, the piston rod of the inclined oil cylinder is connected with the other of the pushing frame and the scraper blade body, and the scraper blade body can be driven to incline relative to the ground by the action of the inclined oil cylinder. An oil port is formed in the cylinder body and is arranged on one upward side of the cylinder body; one end of the oil pipe is connected with the oil port, and the other end of the oil pipe is connected to the driving part on the vehicle body. Because the hydraulic fluid port sets up the one side up of cylinder body, consequently follow the native stone that spiller body top or both sides dropped only can pile up the slope hydro-cylinder, the push frame with the triangle-shaped region that the spiller body encloses, promptly, pile up the below of slope hydro-cylinder, just so can not be right the hydraulic fluid port produces the influence, thereby guarantees the slope hydro-cylinder still can normally work in abominable operating mode, and because the hydraulic fluid port sets up the one side up of cylinder body, made things convenient for more oil pipe's connection and installation.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a blade mechanism of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic view of the protective cover of the blade mechanism;

fig. 4 is a schematic structural view of another embodiment of the blade mechanism of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

As shown in fig. 1 to 4, the blade mechanism includes a pushing frame 10, a blade body 20, an inclined cylinder 30, and an oil pipe 40; one end of the pushing frame 10 is connected with the shovel body 20, and the other end is used for connecting with a bulldozer body; the cylinder body of the tilt cylinder 30 is connected to one of the pushing frame 10 and the scraper body 20, the piston rod of the tilt cylinder 30 is connected to the other of the pushing frame 10 and the scraper body 20, the cylinder body is provided with an oil port 31, and the oil port 31 is arranged on the upward side of the cylinder body; one end of the oil pipe 40 is connected to the oil port 31, and the other end is connected to a driving part on the vehicle body.

The utility model discloses in, because hydraulic fluid port 31 sets up the up one side of cylinder body, consequently follow the soil stone that scraper body 20 top or both sides dropped only can be piled up slope hydro-cylinder 30 top push frame 10 with the triangle-shaped region that scraper body 20 encloses, promptly, pile up the below of slope hydro-cylinder 30, just so can not right hydraulic fluid port 31 produces the influence, thereby guarantees slope hydro-cylinder 30 still can normally work in abominable operating mode, and because hydraulic fluid port 31 sets up the up one side of cylinder body, has made things convenient for more oil pipe 40's connection and installation.

As shown in fig. 1 to 3, in some working conditions, the oil pipe 40 may be worn by earth and stones, so that the oil pipe 40 cannot work normally, and the tilt cylinder 30 cannot work. In order to solve the problem, in an embodiment of the present invention, the blade mechanism further includes a protective cover 50, the pushing frame 10 is a hollow structure and is opened with a communication port 11, and the other end of the oil pipe 40 extends into the pushing frame 10 through the communication port 11 and is connected to the driving part; the protective cap 50 is disposed between the oil port 31 and the communication port 11 to cover the oil tube 40 therein. That is, the falling and splashing earth and stones during the bulldozer operation can only impact on the protective cover 50, and the oil pipe 40 inside the protective cover 50 is not abraded, thereby ensuring the normal operation of the tilt cylinder 30.

Specifically, the cylinder body of the tilt cylinder 30 is connected to the pushing frame 10, and the piston rod of the tilt cylinder 30 is connected to the blade body 20. The extension and retraction of the piston rod drives the shovel body 20 to tilt relative to the pushing frame 10, that is, to tilt relative to the ground.

In order to enable the tilting cylinder 30 to control the tilting of the spatula body 20 relative to the pushing frame 10 more flexibly, the pushing frame 10 optionally has a support 12, the cylinder body is hinged to the support 12, and the piston rod is hinged to the spatula body 20.

In the above embodiment, in order to further prevent the soil and stone from wearing the oil pipe 40, in an embodiment of the present invention, the communication port 11 is provided on one side of the support 12 away from the scraper body 20, so that the communication port 11 is further away from the triangular area where the soil and stone are scattered and accumulated, thereby avoiding the soil and stone from wearing the oil pipe 40 as much as possible.

When some earth and stones fall down from the upper portion of the shovel body 20, they may enter the inside of the protection cover 50 from the upper portion of the protection cover 50, and then have a bad influence on the oil port 31, in order to solve this problem, in an embodiment of the present invention, the protection cover 50 includes a first protection plate 51 and a second protection plate 52 connected to each other, the first protection plate 51 is covered on the communication port 11, the second protection plate 52 is covered on the oil port 31, wherein the second protection plate 52 has a diameter-variable structure, and the small diameter end of the second protection plate 52 is far away from the first protection plate 51. Since the small-diameter end of the second protector plate 52 is disposed upward, the gap between the small-diameter end of the second protector plate 52 and the tilt cylinder 30 is small, which makes it difficult for earth and stones to enter the interior of the protective cover 50 from the small-diameter end of the second protector plate 52.

In order to facilitate the installation of the protection cover 50, optionally, the first protection plate 51 is provided with an installation hole, and a fastener is used to install the first protection plate 51 on the pushing frame 10 through the installation hole.

Under abominable operating mode, if the soil stone strikes fastener in the mounting hole may cause the fastener to become invalid, thereby leads to safety cover 50 drops, and it is unable right to continue oil pipe 40 hydraulic fluid port 31 and intercommunication mouth 11 protects, for this reason the utility model discloses an embodiment, safety cover 50 includes the edge the sheath 53 of the edge setting of mounting hole, sheath 53 can guarantee that the soil stone can't be right fastener in the mounting hole produces direct impact, and then has guaranteed safety cover 50's fastness and stability.

In another embodiment of the present invention, as shown in fig. 4, the communication port 11 is not opened in the push frame 10, and therefore, the oil pipe 40 cannot extend from the inside of the push frame 10 to the body of the bulldozer, and in this embodiment, the blade body 20 includes a pipe portion 21 for connection to the drive portion, and the other end of the oil pipe 40 is connected to the pipe portion 21. That is, the oil pipe 40 is directly extended toward the dipper body 20 after being communicated with the oil port 31, and is communicated with the conduit part 21, the conduit part 21 has an earth and stone impact-proof housing, and the protective cover 50 is provided directly on the oil port 31 and the conduit part 21 to completely protect the oil pipe 40.

The utility model also provides a bulldozer, the bulldozer includes automobile body and foretell spiller mechanism, the one end of the top push frame 10 of spiller mechanism is connected the automobile body, oil pipe 40's one end is connected to drive division on the automobile body. The utility model discloses a bull-dozer is owing to adopted foretell spiller mechanism, consequently in abominable operating mode, its spiller body still can normally work and slope.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide a solution of the present invention with a plurality of simple modifications to avoid unnecessary repetition, and the present invention is not described separately for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims

1. The scraper knife mechanism is characterized by comprising a pushing frame (10), a scraper knife body (20), an inclined oil cylinder (30) and an oil pipe (40);

one end of the pushing frame (10) is connected with the shovel body (20), and the other end of the pushing frame is used for being connected with a bulldozer body;

the cylinder body of the inclined oil cylinder (30) is connected to one of the pushing frame (10) and the scraper body (20), the piston rod of the inclined oil cylinder (30) is connected to the other of the pushing frame (10) and the scraper body (20), an oil port (31) is formed in the cylinder body, and the oil port (31) is formed in the upward side of the cylinder body;

one end of the oil pipe (40) is connected with the oil port (31), and the other end of the oil pipe is connected to a driving part on the vehicle body.

2. The blade mechanism of claim 1, characterized in that the blade mechanism comprises a protective cover (50), the pushing frame (10) is a hollow structure and is provided with a communication port (11), and the other end of the oil pipe (40) extends into the pushing frame (10) through the communication port (11) and is connected to the driving part; the protective cover (50) is disposed between the oil port (31) and the communication port (11) to cover the oil pipe (40) inside.

3. The blade mechanism of claim 2, wherein the cylinder body of the tilt cylinder (30) is connected to the push frame (10), and the piston rod of the tilt cylinder (30) is connected to the blade body (20).

4. The blade mechanism of claim 3, wherein the pushing carriage (10) has a support (12), the cylinder being hinged to the support (12), the piston rod being hinged to the blade body (20).

5. The blade mechanism of claim 4, characterized in that the communication opening (11) opens at a side of the support (12) remote from the blade body (20).

6. The blade mechanism according to claim 4, wherein the protection cover (50) comprises a first protection plate (51) and a second protection plate (52) connected with each other, the first protection plate (51) covers the communication port (11), the second protection plate (52) covers the oil port (31), wherein the second protection plate (52) has a diameter-variable structure, and a small diameter end of the second protection plate (52) is far away from the first protection plate (51).

7. The blade mechanism of claim 6, wherein the first guard plate (51) is provided with mounting holes through which fasteners mount the first guard plate (51) to the push frame (10).

8. The blade mechanism of claim 7, wherein the protective cover (50) includes a sheath (53) disposed along an edge of the mounting hole.

9. The blade mechanism of claim 1, wherein the blade body (20) includes a conduit portion (21) for connection with the drive portion, the other end of the oil conduit (40) being connected to the conduit portion (21).

10. A bulldozer, characterized in that it comprises a vehicle body and a blade mechanism as claimed in any one of claims 1 to 9, one end of a push frame (10) of said blade mechanism being connected to said vehicle body, and one end of said oil pipe (40) being connected to a drive portion on said vehicle body.