Excavator hydraulic oil tank and excavator

Abstract

The utility model relates to an excavator hydraulic oil tank and an excavator, and belongs to the technical field of engineering machinery, the excavator hydraulic oil tank comprises an oil tank body, an oil return cavity and an oil suction cavity are formed in the oil tank body, and an oil return opening and an oil suction opening are formed in the positions, corresponding to an inner cavity, of the outer side surface of the oil tank body. According to the hydraulic system, when an oil suction branch and an oil return branch in the hydraulic system are connected with an oil return port and an oil suction port, a branch hose can form a large bending radius, it is ensured that the hydraulic system can stably provide hydraulic pressure meeting the use requirement of an excavator, the influence of the too small bending radius on the hydraulic pressure is relieved, and the service life of the excavator is prolonged. The reliability and efficiency of a hydraulic system are improved, and hose abrasion and potential hydraulic faults caused by bending are reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of engineering machinery, and particularly relates to a hydraulic oil tank of an excavator and the excavator. BACKGROUND

[0002] The statements herein merely provide background technology related to the present disclosure, and do not necessarily constitute prior art.

[0003] As a heavy-duty transport device used in mine operation, the excavator usually needs to rely on a hydraulic system to provide necessary power for a mechanical arm. In the existing hydraulic system, the connection between the hydraulic oil tank and the pipeline usually needs to be connected with the help of an additional elbow, a return oil port and a suction oil port. This connection mode often causes the bending radius of the hose to be too small, and thus the hose is prone to twisting and flattening. The small bending radius of the hose increases the resistance of fluid flow, causes pressure loss, and thus the effective hydraulic pressure provided by the hydraulic oil is reduced, which causes the mechanical arm to move slowly and affects the efficiency of the excavator in mine operation. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present disclosure is to provide a hydraulic oil tank of an excavator and the excavator, which can at least solve one of the above technical problems.

[0005] To achieve the above purpose, one or more embodiments of the present disclosure provide a hydraulic oil tank of an excavator, comprising an oil tank body, an internal cavity for storing hydraulic oil is arranged in the oil tank body, a return oil port and a suction oil port connected with the internal cavity are arranged on the outer side of the oil tank body; the overall cross section of the oil tank body is rectangular, and a bevel surface is arranged at the position where the return oil port and the suction oil port of the oil tank body are arranged.

[0006] Further, the bevel surface is arranged at the top of the oil tank body, and a flange plate is arranged on the return oil port and the suction oil port of the bevel surface.

[0007] Further, a return oil valve core for controlling the backflow of oil is arranged in the cavity.

[0008] Further, the return oil valve core is connected with the return oil port, and a sealing element is arranged at the connection position.

[0009] Further, the return oil port is connected with a return oil branch, and the return oil port and the return oil branch are butt-jointed through the flange plate.

[0010] Further, the suction oil port is connected with a suction oil branch, and the suction oil port and the suction oil branch are butt-jointed through the flange plate.

[0011] Further, the butt-jointed position of the flange plate is provided with sealing glue and a sealing gasket.

[0012] Further, the included angle between the oblique surface and the section between the top surface of the oil tank body and the side surface on the side where the oil return port and the oil suction port are arranged is 45°.

[0013] Further, the bottom of the oil tank body on the side away from the oblique surface is provided with an oil level observation port.

[0014] Another aspect of the embodiments of the present disclosure provides a kind of excavator, it includes a kind of excavator hydraulic oil tank described above.

[0015] The beneficial effects of one or more technical solutions above are:

[0016] The present disclosure sets the oblique surface on the position where the oil return port and the oil suction port are arranged on the top of the oil tank body, so that when the oil suction branch and the oil return branch in the hydraulic system are connected with the oil return port and the oil suction port, the problems of distortion and flattening caused by too small bending radius of the existing hose are avoided, so that the hydraulic system can stably provide the hydraulic pressure that meets the use demand of the excavator. In this way, not only the influence of too small bending radius on hydraulic pressure is alleviated, the reliability and efficiency of the hydraulic system are improved, but also the hose wear and potential hydraulic failure caused by bending are reduced, so that the service life of the entire hydraulic system is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application serve to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof serve to explain the present application, and do not constitute a limitation on the present application.

[0018] Fig. 1 A schematic view of subframe structure in one or more embodiments of the present disclosure;

[0019] Fig. 2 A schematic view of the installation of radiator assembly and power assembly in one or more embodiments of the present disclosure.

[0020] In the figure, 1, oil tank body; 2, oil suction port; 3, oil return port; 4, oil return branch; 5, oil suction branch; 6, oblique surface. DETAILED DESCRIPTION

[0021] As Figs. 1-2 shown, the present embodiment provides a kind of excavator hydraulic oil tank and excavator, including oil tank body 1, the inside of oil tank body 1 is provided with the cavity of storing hydraulic oil, the outside of oil tank body 1 is provided with oil return port 3 and oil suction port 2 connected with the cavity in, facilitate the circulation of hydraulic oil, the overall section of oil tank body 1 is rectangle, the top of oil tank body 1 is provided with oblique surface 6, the included angle between the oblique surface 6 and the section between the top surface of oil tank body 1 and the side surface on the side where oil return port 3 and oil suction port 2 are arranged is 45°.

[0022] Specifically, the oil return port 3 and the oil suction port 2 are arranged on the chamfered surface 6, and the oil return branch 4 and the oil suction branch 5 in the hydraulic system are connected to the oil return port 3 and the oil suction port 2, so that the circulation efficiency of the oil and the overall performance of the system are improved, and the oil return branch 5 and the oil suction branch 4 can form a large bending radius when connected to the oil return port 3 and the oil suction port 2, so that the hydraulic system can stably provide a hydraulic pressure meeting the use requirements of the excavator, the influence of a small bending radius on the hydraulic pressure is reduced, the reliability and efficiency of the hydraulic system are improved, the wear of the hose caused by bending and potential hydraulic failure are reduced, and the service life of the entire hydraulic system is prolonged.

[0023] An oil return valve core for controlling the backflow of the oil is arranged in the chamber in the oil tank body 1, the oil return valve core is connected to the oil return port 3, a sealing element is arranged at the connection position, the oil return filter element is arranged to adjust and control the backflow process of the oil, so that the oil can smoothly and stably return to the oil tank, the normal operation and efficiency of the entire hydraulic system are maintained, the pressure instability of the oil in the backflow process is prevented, and the stability and reliability of the system are ensured.

[0024] As shown in Fig. 2 The oil return port 3 is connected to the oil return branch 4, and the oil return port 3 and the oil return branch 4 are connected through flanges; the oil suction port 2 is connected to the oil suction branch 5, and the oil suction port 2 and the oil suction branch 5 are connected through flanges; sealing glue and sealing pads are arranged at the flange connection positions.

[0025] Specifically, the oil return port 3 is connected to the oil return branch 4 to form a complete oil return system, and the two are connected through flanges; similarly, the oil suction port 2 is connected to the oil suction branch 5 through flanges, so that the tightness of the connection is ensured. In order to ensure the sealing performance of the system, sealing glue and sealing pads are specially arranged at the flange connection positions, which effectively prevent the leakage of the oil and ensure the stable operation of the hydraulic system.

[0026] An oil level observation port is arranged at the bottom of the side, away from the chamfered surface 6, of the oil tank body 1, for monitoring and observing the height of the oil in the oil chamber in real time, so that the normal operation of the oil and the safe use of the equipment are ensured.

[0027] The embodiment also provides an excavator, which comprises the hydraulic oil tank.

[0028] The working principle of the utility model is as follows:

[0029] The outer surface of the oil tank body 1 is provided with an oil return port 3 and an oil suction port 2 at the position corresponding to the internal cavity. By providing a bevel 6 on the top of the oil tank body 1, the bevel 6 is arranged to make the oil suction branch 5 and the oil return branch 4 in the hydraulic system form a large bending radius when connected to the oil return port 3 and the oil suction port 2, so as to ensure that the hydraulic system can stably provide a hydraulic pressure meeting the use requirements of the excavator, alleviate the influence of the small bending radius on the hydraulic pressure, improve the reliability and efficiency of the hydraulic system, and reduce the wear of the hose and potential hydraulic failure caused by bending.

[0030] Although the specific embodiments of the present disclosure are described above with reference to the drawings, the present disclosure is not limited thereto, and various modifications or changes can be made to the technical solutions of the present disclosure without creative labor, which are still within the protection scope of the present disclosure.

Claims

1. A hydraulic oil tank for an excavator, characterized in that, The system includes an oil tank body, the interior of which is provided with a chamber for storing hydraulic oil, and the exterior of which is provided with an oil return port and an oil suction port connected to the interior chamber; the overall cross-section of the oil tank body is rectangular, and the positions of the oil return port and the oil suction port of the oil tank body are provided with beveled surfaces.

2. The hydraulic oil tank for an excavator according to claim 1, characterized in that, The beveled surface is located on the top of the oil tank body, and flanges are provided on both the oil return port and the oil suction port on the beveled surface.

3. The hydraulic oil tank for an excavator according to claim 1, characterized in that, The chamber is equipped with a return valve core for controlling the return flow of oil.

4. The hydraulic oil tank for an excavator according to claim 1, characterized in that, The return valve core is connected to the return port, and a seal is provided at the connection.

5. A hydraulic oil tank for an excavator according to claim 1, characterized in that, The oil return port is connected to the oil return branch, and the oil return port and the oil return branch are connected by a flange.

6. The hydraulic oil tank for an excavator according to claim 1, characterized in that, The oil suction port is connected to the oil suction branch, and the oil suction port and the oil suction branch are connected by a flange.

7. A hydraulic oil tank for an excavator according to any one of claims 5 or 6, characterized in that, The flange joint is provided with sealant and a gasket.

8. The hydraulic oil tank for an excavator according to claim 1, characterized in that, The angle between the oblique cut surface and the top surface of the oil tank body and the side surface on the side where the return oil port and the suction oil port are located is 45°.

9. A hydraulic oil tank for an excavator according to claim 1, characterized in that, An oil level observation port is provided at the bottom of the oil tank body on the side away from the oblique section.

10. An excavator, characterized in that, The hydraulic oil tank for an excavator includes any one of the claims 1-9 above.

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