Engine supporting leg device of loading machine

Abstract

The utility model discloses an engine supporting leg device of a loader, which belongs to the technical field of loaders and comprises a supporting plate, reinforcing vertical plates are arranged at two ends of the supporting plate, and mounting holes are arranged on the supporting plate. The upper end face of the reinforcing vertical plate comprises a first arc-shaped face and a third contact face, and the lower end face of the reinforcing vertical plate comprises a first contact face and a second arc-shaped face. One end of the first contact surface is a second contact surface, and the first contact surface, the second contact surface and the third contact surface are connected with the surface of the frame. The problems of stress concentration and resonance noise caused by the fact that vibration generated in the working process of the engine is transmitted to the frame and the whole machine can be solved, noise pollution to personnel in a cab is avoided, stress is uniform, stability is good, and noise generated by resonance is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of loaders, and particularly relates to an engine support leg device of a loader. Background Art

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] During the operation and walking of a wheeled loader, the engine generates huge vibrations, which drive the frame, produce various noises, and cause noise pollution to the driver. The loader frame is the carrier of the major assemblies of the machine and is one of the most important load-bearing components. The engine support legs also become a top priority. As a connecting structure between the frame and the engine, the engine support legs are important load-bearing components on the loader, bearing all the loads at the rear of the frame and the impact force generated during the entire operation process.

[0004] Currently, the engine support legs are welded between two clamping plates of the frame and do not contact the upper and lower plates. The engine is connected to the engine support legs through bolt shock pads. When the engine works, the vibrations generated drive the entire frame and thus the loader. The structure is single and the force-bearing is weak, and the resonance generates a large amount of noise. Summary of the Utility Model

[0005] Aiming at the above problems, the utility model provides an engine support leg device of a loader, which can solve the problems of stress concentration and resonance noise generated by the vibrations generated during the operation of the engine being transmitted to the frame and thus the whole machine, avoid noise pollution to the personnel in the cab, have uniform force, good stability, and effectively reduce the noise generated by resonance.

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

[0007] An engine support leg device of a loader includes a support plate. Reinforcing vertical plates are arranged at both ends of the support plate, and mounting holes are provided on the support plate; the upper end surface of the reinforcing vertical plate includes a first arc surface and a third contact surface, and the lower end surface of the reinforcing vertical plate includes a first contact surface and a second arc surface; one end of the first contact surface is a second contact surface, and the first contact surface, the second contact surface, and the third contact surface are connected to the surface of the frame.

[0008] Further, the side surface of the reinforcing vertical plate is a second connection surface, the side surface of the support plate is a first connection surface, and the first connection surface is connected to the second connection surface.

[0009] Further, the upper end surface of the support plate is a mounting surface, and the mounting surface is used to support the mounting structure of the engine.

[0010] Further, the mounting holes penetrate through the support plate.

[0011] Further, the mounting holes are used to connect the support plate to the engine.

[0012] Further, the first contact surface is connected to the upper surface of the vehicle frame.

[0013] Further, the second contact surface is connected to the side surface of the vehicle frame.

[0014] Further, the third contact surface is connected to the lower surface of the vehicle frame.

[0015] Further, one end of the first arc surface is a first plane, and the first plane is between the first arc surface and the second arc surface.

[0016] Further, an inclined surface is provided between the first contact surface and the second contact surface, and an inclined surface is provided between the second contact surface and the third contact surface.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0018] The present utility model is provided with a reinforcing vertical plate and a support plate. The engine and the vehicle frame are connected through the cooperation of the support plate and the reinforcing vertical plate. The reinforcing vertical plate has two arc surfaces, namely a first arc surface and a second arc surface. The stress concentration is greatly released through the first arc surface and the second arc surface. At the same time, the arrangement of the first arc surface and the second arc surface reserves sufficient installation space for the installation of other components, avoids the positions of other components, and facilitates the layout of the internal structure of the loader. The reinforcing vertical plate also has a first contact surface, a second contact surface and a third contact surface. The first contact surface, the second contact surface and the third contact surface are connected to the respective surfaces of the vehicle frame to form a frame structure, which increases the stability. It is upgraded from the existing single-sided force to three-sided force, the force is more uniform, the stability is good, the noise generated by resonance is effectively reduced, and the problem of stress concentration and resonance noise caused by the vibration generated by the engine during operation being transmitted to the vehicle frame and then to the whole machine is solved, avoiding noise pollution to the personnel in the cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specification drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0020] Figure 1 is a perspective view of the engine leg device of the present utility model;

[0021] Figure 2 is a front view of the engine leg device of the present utility model;

[0022] Figure 3 It is the side view of the engine support leg device of the present utility model;

[0023] Figure 4 It is the top view of the engine support leg device of the present utility model;

[0024] In the figure: 1. Support plate; 11. Mounting hole; 12. Mounting surface; 13. First connection surface; 2. Reinforcing vertical plate; 21. Second connection surface; 22. First arc surface; 23. Second arc surface; 24. First contact surface; 25. Second contact surface; 26. Third contact surface; 27. First plane. Detailed implementation manner

[0025] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0026] Currently, the engine support leg is welded between two clamping plates of the vehicle frame and does not contact the upper and lower plates. The engine is connected to the engine support leg through a bolt shock pad. When the engine works, the vibration generated drives the entire vehicle frame and thus the loader. The structure is single and the force-bearing is weak, and the resonance generates a large noise.

[0027] The following will combine with the attached drawings to describe the present utility model in detail. An engine support leg device of a loader disclosed in this embodiment has support leg devices symmetrically arranged at both ends of the vehicle frame to connect the engine and the vehicle frame. The support leg devices are installed between two clamping plates of the vehicle frame.

[0028] As Figure 1 shown, it includes a support plate 1, with reinforcing vertical plates 2 arranged at both ends of the support plate 1, and mounting holes 11 are provided on the support plate 1; as Figure 3 shown, the upper end surface of the reinforcing vertical plate 2 includes a first arc surface 22 and a third contact surface 26, and the lower end surface of the reinforcing vertical plate 2 includes a first contact surface 24 and a second arc surface 23; one end of the first contact surface 24 is a second contact surface 25, and the first contact surface 24, the second contact surface 25 and the third contact surface 26 are connected to the surface of the vehicle frame.

[0029] The engine and the vehicle frame are connected through the cooperation of the support plate 1 and the reinforcing vertical plate 2. The reinforcing vertical plate 2 has two arc surfaces, namely the first arc surface 22 and the second arc surface 23. The arc surface has a radian, and the concentrated stress received by the radian is smaller than that of the right angle in the prior art. When the arc surface receives stress, most of it is released, while the straight surface retains all of it in itself. Therefore, the concentration of stress is greatly released through the first arc surface 22 and the second arc surface 23.

[0030] Meanwhile, the settings of the first arc surface 22 and the second arc surface 23 reserve sufficient installation space for the installation of other components, avoid the positions of other components, and facilitate the layout of the internal structure of the loader.

[0031] The reinforcing vertical plate 2 also has a first contact surface 24, a second contact surface 25, and a third contact surface 26. It is connected to each surface of the vehicle frame through the first contact surface 24, the second contact surface 25, and the third contact surface 26, forming a frame structure, which increases the stability. It is upgraded from the existing single-sided force to three-sided force, with more uniform force and good stability. It effectively reduces the noise generated by resonance, solves the problem of stress concentration and resonance noise caused by the vibration generated during the operation of the engine being transmitted to the vehicle frame and then to the whole machine, and avoids noise pollution to the personnel in the cab.

[0032] In the prior art, one surface is connected to the vehicle frame. The vibration of the engine drives the support legs, tearing the vehicle frame, resulting in large resonance and large noise. In the utility model, three surfaces are in contact for overall reinforcement, that is, the first contact surface 24, the second contact surface 25, and the third contact surface 26 are in contact. The support is that three surfaces drive the rear vehicle frame to vibrate, with very small vibration, resulting in small resonance and thus small noise.

[0033] As Figure 2 and Figure 3 shown, the side surface of the reinforcing vertical plate 2 is the second connection surface 21, and the side surface of the support plate 1 is the first connection surface 13. The first connection surface 13 is connected to the second connection surface 21. The reinforcing vertical plates 2 are symmetrically arranged at both ends of the support plate 1, and are welded between the first connection surface 13 and the second connection surface 21.

[0034] The upper end surface of the support plate 1 is the installation surface 12, and the installation surface 12 is used to support the installation structure of the engine. The installation hole 11 penetrates through the support plate 1. The installation hole 11 is used to connect the support plate 1 with the engine. The support plate 1 is used to support the engine, and the support plate 1 and the engine are connected through the cooperation of the installation hole 11 on the support plate 1 and the corresponding connection structure.

[0035] The first contact surface 24 is connected to the upper surface of the vehicle frame. The second contact surface 25 is connected to the side surface of the vehicle frame. The third contact surface 26 is connected to the lower surface of the vehicle frame. The connection of the three contact surfaces to the surfaces of the vehicle frame enables the vibration generated during the operation of the engine to be stressed by multiple surfaces, avoiding the problem of stress concentration caused by single-position stress.

[0036] One end of the first arc surface 22 is the first plane 27, and the first plane 27 is between the first arc surface 22 and the second arc surface 23. There are inclined surfaces between the first contact surface 24 and the second contact surface 25, and between the second contact surface 25 and the third contact surface 26. Through the setting of the inclined surfaces, a certain space is left at the connection position between the reinforcing vertical plate 2 and the vehicle frame.

[0037] Although the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, they are not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made without creative efforts on the basis of the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. An engine outrigger device for a loader, characterized in that: It includes a support plate, and reinforcing vertical plates are arranged at both ends of the support plate, and mounting holes are arranged on the support plate; the upper end surface of the reinforcing vertical plate includes a first arc surface and a third contact surface, and the lower end surface of the reinforcing vertical plate includes a first contact surface and a second arc surface; one end of the first contact surface is a second contact surface, and the first contact surface, the second contact surface and the third contact surface are connected to the surface of the frame.

2. The engine support leg device of a loader according to claim 1, characterized in that: The side surface of the reinforcing vertical plate is the second connecting surface, and the side surface of the supporting plate is the first connecting surface, and the first connecting surface is connected to the second connecting surface.

3. The engine support leg device of a loader according to claim 1, characterized in that: The upper end surface of the support plate is a mounting surface, and the mounting surface is used to support the mounting structure of the engine.

4. The engine outrigger device of a loader according to claim 1, characterized in that: The mounting hole passes through the supporting plate.

5. The engine support leg device of a loader according to claim 4, characterized in that: The mounting holes are used to connect the support plate to the engine.

6. The engine support leg device of a loader according to claim 1, characterized in that: The first contact surface is connected to the upper surface of the frame.

7. The engine support leg device of a loader according to claim 1, characterized in that: The second contact surface is connected to the side surface of the vehicle frame.

8. The engine support leg device of a loader according to claim 1, characterized in that: The third contact surface is connected to the lower surface of the vehicle frame.

9. The engine support leg device of a loader according to claim 1, characterized in that: One end of the first arcuate surface is a first plane, and the first plane is located between the first arcuate surface and the second arcuate surface.

10. The engine support leg device of a loader according to claim 1, characterized in that: An inclined surface is provided between the first contact surface and the second contact surface, and an inclined surface is provided between the second contact surface and the third contact surface.

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