Bulldozing blade and excavator

By installing side shovels at both ends of the bulldozer blade and fixing them to the main blade, the problem of limited width of the bulldozer blade in small and medium-sized excavators is solved, achieving efficient bulldozing and stable support.

CN224063545UActive Publication Date: 2026-03-31LIUGONG CHANGZHOU MACHINERY +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The limited width of the bulldozer blades on small and medium-sized excavators results in low bulldozing efficiency and poor support stability, making it difficult to balance passability and operational efficiency.

Method used

Side blades are installed at both ends of the bulldozer blade. The side blades are fixedly connected to the end plates of the main blade by bolts, which increases the width of the bulldozer blade to improve efficiency and stability, and can be disassembled to ensure passage.

Benefits of technology

Without affecting the overall machine's maneuverability, it improves the efficiency and stability of bulldozing operations, and enhances the width and support capacity of the bulldozer blade.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224063545U_ABST
Patent Text Reader

Abstract

In order to solve the problem that the working efficiency and the passing ability of an existing excavator dozer blade are difficult to achieve at the same time, the dozer blade comprises a main blade body and side blade bodies arranged at the two ends of the main blade body, and the left end and the right end of the main blade body are each provided with an end plate. The side shovels on each side are arranged in the left-right direction, one ends of the side shovels abut against the end plate of the main shovel, and the side shovels are fixedly connected with the end plate through installation bolts at the abutting positions. According to the bulldozing shovel, the side shovels are installed at the two ends of the main shovel, the width of the bulldozing shovel can be effectively increased, and therefore the bulldozing efficiency of the bulldozing shovel is improved, and the supporting stability of the bulldozing shovel is improved. And the side shovels can be detached when passing through the width-limiting channel, so that the trafficability is not influenced.
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Description

Technical Field

[0001] This utility model relates to a bulldozer blade, and more specifically, to a bulldozer blade and an excavator. Background Technology

[0002] Some excavators, especially small and medium-sized ones, are equipped with bulldozer blades for pushing and shoveling operations. The width of the bulldozer blade is limited by the excavator's maneuverability requirements. For example, for wheeled excavators, the standard bulldozer blade typically does not exceed the distance between the outer edges of the tires on either side of the axle. A narrow bulldozer blade results in a smaller pushing width during operation, and when a certain amount of soil accumulates in front of the blade, it will spill over the sides and rear, requiring multiple pushes to clear the soil, leading to low efficiency. Furthermore, excavators often require the bulldozer blade for support during digging and obstacle crossing; a narrow bulldozer blade provides insufficient support and poor stability. Utility Model Content

[0003] The technical problem this invention aims to solve is the difficulty in achieving both high bulldozing efficiency and good maneuverability in excavators. The invention provides a bulldozing blade and excavator that achieve both high bulldozing efficiency and support stability while ensuring good maneuverability.

[0004] The technical solution of this utility model to achieve its purpose is: a bulldozer blade, including a main blade and side blades arranged at both ends of the main blade. Each of the left and right ends of the main blade has an end plate. The side blades on each side are arranged along the left and right direction and one end is attached to the end plate of the main blade. The side blades are fixedly connected to the end plate at the attachment part by mounting bolts.

[0005] In this invention, side shovels are installed at both ends of the main shovel, which effectively increases the width of the bulldozer blade, thereby improving its efficiency during bulldozing operations and enhancing its stability during support. The side shovels can be detached when passing through width-restricted passages, thus not affecting its passability.

[0006] In this utility model bulldozer blade, the side blade includes a side blade main cutter plate, one end of which is welded with a mounting plate for fitting against the end plate, and the mounting bolts are arranged on the mounting plate.

[0007] In this utility model bulldozer blade, the side blade also includes a side blade end plate and a support plate. The side blade end plate is welded to the opposite end of the mounting plate on the main blade plate of the side blade. The support plate is welded to the rear side of the main blade plate of the side blade, and its two ends are respectively welded to the mounting plate and the side blade end plate.

[0008] In this utility model bulldozer blade, the support plate is in the shape of a through groove, which is welded to the main blade plate of the side blade at the groove opening, and welded to the mounting plate and the end plate of the side blade at both ends of the groove.

[0009] In this utility model bulldozer blade, the top of the main blade plate of the side blade has a backward-bent section, and the left and right ends of the bent section are welded to the top of the mounting plate and the end plate of the side blade.

[0010] In this utility model bulldozer blade, the side blade also includes a front blade plate, which is welded to the lower front side of the main blade plate of the side blade. Its rear side is attached to the front side of the main blade plate of the side blade, and its left and right ends are welded to the lower front edge of the mounting plate and the side blade end plate respectively.

[0011] In this utility model bulldozer blade, the side blade also includes a side blade bottom plate. The left and right ends of the side blade bottom plate are welded to the bottom of the mounting plate and the side blade end plate, and its front edge is welded to the rear side of the front blade plate.

[0012] In this bulldozer blade, the side blade also includes a reinforcing plate. The reinforcing plate is attached to the lower part of the mounting plate, and its lower part is welded to the top surface of the side blade bottom plate. Its front edge is welded to the front blade plate. The reinforcing plate is provided with holes for the mounting bolts to pass through. When the bulldozer blade is in operation, its lower part is subjected to greater force. The reinforcing plate can enhance the strength of the lower part of the side blade.

[0013] In this utility model of a bulldozer blade, the mounting plate and the main blade plate of the side blade are connected at an oblique angle. After the mounting plate is attached to the end plate of the main blade, the end of the side blade is inclined forward, making it difficult for the soil pushed by the blade to pass over the end of the side blade to the rear of the blade.

[0014] The technical solution of this utility model to achieve its purpose is: an excavator having the aforementioned bulldozer blade.

[0015] Compared with the prior art, this utility model uses a new type of bulldozer blade to improve the bulldozing efficiency and the support stability of the whole machine when the bulldozer blade is used as a support component, without affecting the overall machine's passability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of the bulldozer blade of this utility model on an excavator.

[0017] Figure 2 This is a schematic diagram of the installation structure of the side shovel on the main shovel in this utility model.

[0018] Component names and serial numbers in the diagram:

[0019] Main shovel 1, end plate 11, pusher cylinder 2, connecting rod 3, side shovel 5, side shovel main blade plate 61, bending part 62, mounting plate 63, side shovel end plate 64, support plate 65, front blade plate 66, side shovel bottom plate 67, reinforcing plate 68, mounting bolts 7. Detailed Implementation

[0020] The specific implementation plan is described below with reference to the attached diagram.

[0021] like Figure 1 As shown, the bulldozer blade includes a main blade 1 and side blades 5 arranged at both ends of the main blade 1. Each of the left and right ends of the main blade 1 has an end plate 11. The side blades 5 on each side are arranged in the left and right direction and one end is attached to the end plate 11 of the main blade 1. The side blades 5 are fixedly connected to the end plate 11 at the attachment point by mounting bolts 7.

[0022] In this embodiment, the rear of the main shovel 1 is connected to the connecting rod 3 and the pusher cylinder 2 via a pin. The rear ends of the pusher cylinder 2 and the connecting rod 3 are connected to the frame of the excavator. The pusher cylinder 2 can extend and retract to raise and lower the main shovel 1.

[0023] Side shovels 5 are installed at both ends of the main shovel 1, which can effectively increase the width of the bulldozer blade, thereby improving its bulldozing efficiency and support stability when using the bulldozer blade for support. The side shovels 5 can be removed when passing through width-restricted passages, so as not to affect its passage.

[0024] Optionally, the side shovel 5 includes a side shovel main blade plate 61, one end of which is welded with a mounting plate 63 for engaging with the end plate 11 of the main shovel 1. Mounting bolts 7 are arranged on the mounting plate 7. Further, the mounting plate 63 and the side shovel main blade plate are obliquely connected, meaning the angle between the mounting plate 63 and the side shovel main blade plate 61 is less than 90 degrees. After the mounting plate 63 engages with the end plate 11 of the main shovel 1, the side shovel 5 and the main shovel 1 are arranged in a zigzag pattern, with the end of the side shovel 5 inclined forward, making it difficult for the soil it pushes to pass over the end of the side shovel 5 to reach behind the pusher shovel 1.

[0025] Optionally, the side shovel 5 may also include a side shovel end plate 64, a support plate 65, a front blade plate 66, a side shovel bottom plate 67, a reinforcing plate 68, etc.

[0026] like Figure 2 As shown, the side shovel end plate 64 is welded to the other end of the side shovel main blade plate 61, opposite to the mounting plate 63. The support plate 65 is welded to the rear side of the side shovel main blade plate 61, and its two ends are respectively welded to the mounting plate 63 and the side shovel end plate 64. Further, the support plate 65 is in the shape of a through groove, which is welded to the side shovel main blade plate 11 at the groove opening, and welded to the mounting plate 63 and the side shovel end plate 64 at both ends of the through groove.

[0027] The front blade 66 is welded to the lower front side of the side shovel main blade 61, and its rear side is attached to the front side of the side shovel main blade 61. Its left and right ends are welded to the lower front edge of the mounting plate 63 and the side shovel end plate 64 respectively.

[0028] The left and right ends of the side shovel bottom plate 67 are welded to the bottom of the mounting plate 63 and the side shovel end plate 61, and its front edge is welded to the rear side of the front blade plate 66.

[0029] The reinforcing plate 68 is attached to the lower part of the mounting plate 63, and its lower part is welded to the top surface of the side shovel bottom plate 67. Its front edge is welded to the front blade plate 66. The reinforcing plate 68 is provided with holes for the mounting bolts 7 to pass through. When the bulldozer blade is in operation, its lower part is subjected to greater force, and the reinforcing plate can enhance the strength of the lower part of the side shovel.

[0030] The top of the side shovel main blade plate 61 has a backward-bent section 62, and the left and right ends of the bent section 62 are welded to the top of the mounting plate 63 and the side shovel end plate 64 respectively.

[0031] This embodiment also provides an excavator having the aforementioned bulldozer blade, such as... Figure 1 As shown. In this embodiment, the bulldozer blade ensures both bulldozing efficiency during bulldozing operations and support stability for the entire machine when used as a supporting component, without affecting the overall machine's maneuverability.

Claims

1. A bulldozing blade comprising a main blade, characterized in that, The side shovel is arranged along the left-right direction and abuts against the end plate of the main shovel at one end, and is fixedly connected with the end plate at the abutting position by a mounting bolt.

2. The bulldozing blade according to claim 1, characterized in that, The side shovel comprises a side shovel main blade, one end of which is welded with a mounting plate for abutting against the end plate, and the mounting bolt is arranged on the mounting plate.

3. The bulldozing blade of claim 2, wherein, The side shovel further comprises a side shovel end plate and a support plate, the side shovel end plate is welded to the opposite end of the mounting plate setting end of the side shovel main blade, and the support plate is welded to the back side of the side shovel main blade and welded to the mounting plate and the side shovel end plate at both ends.

4. The dozer blade of claim 3, wherein, The support plate is in the shape of a through slot, welded to the side shovel main blade at the slot opening, and welded to the mounting plate and the side shovel end plate at both ends of the slot.

5. The bulldozing blade of claim 3, wherein, The top of the side shovel main blade has a bent portion bent backward, and the left and right ends of the bent portion are welded to the top of the mounting plate and the side shovel end plate.

6. The dozer blade of claim 5, wherein, The side shovel further comprises a front blade, which is welded to the lower front side of the side shovel main blade, with the back side abutting against the front side of the side shovel main blade and the left and right ends welded to the lower front edge of the mounting plate and the side shovel end plate.

7. The dozer blade of claim 6, wherein, The side shovel further comprises a side shovel bottom plate, the left and right ends of which are welded to the bottom of the mounting plate and the side shovel end plate, and the front edge of which is welded to the back side of the front blade.

8. The dozer blade of claim 7, wherein, The side shovel further comprises a reinforcing plate, which abuts against the lower part of the mounting plate, with the lower part welded to the top surface of the side shovel bottom plate and the front edge welded to the front blade, and the reinforcing plate is provided with a hole for the mounting bolt to pass through.

9. The dozer blade of claim 2, wherein, The mounting plate and the side shovel main blade are connected at an oblique angle.

10. An excavator characterized by comprising: The bulldozer shovel has any one of the bulldozer shovels according to claims 1 to 9.