Fuel tank of excavator

Abstract

The utility model provides an excavator fuel tank, which belongs to the technical field of excavators and comprises a tank body, a plurality of fixed supports are arranged on the tank body and respectively arranged on the outer side wall of the tank body, and the tank body is fixedly connected with an excavator body through the fixed supports. The height difference between the mass center of the fuel tank and the fixed support can be effectively reduced, so that the influence of the jittering of the tank body and the violent shaking of fuel on the strength of the fuel tank in the operation process of the excavator is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavators, and in particular relates to a fuel tank for an excavator. Background Art

[0002] A fuel tank is a container for oil. It refers specifically to a device for storing fuel oil on a machine driven by a diesel or gasoline engine. It especially refers to an auxiliary tank or a disposable tank that can be used to increase the range or carry condensate. A fuel tank is a special container for storing hydraulic oil or hydraulic fluid in a hydraulic system.

[0003] The fuel tank of an excavator is generally fixed to the excavator body through a fixed support connected to its bottom. During the actual operation of the excavator, due to the relatively harsh working conditions, the fuel tank fixed on the body is subjected to severe vibration and shaking for a long time, which causes a large force to be applied to the fixed support connecting the bottom of the fuel tank to the body. Over time, this will cause tearing and damage to the connection between the bottom of the fuel tank and the fixed support, resulting in oil leakage, causing the excavator to be unable to work normally and often requiring shutdown for maintenance, which not only increases the cost of use, but also brings considerable losses to customers and manufacturers. Utility Model Content

[0004] In view of the defects or shortcomings in the prior art, the utility model provides an excavator fuel tank, which can effectively reduce the height difference between the center of mass of the fuel tank and the fixed support, thereby reducing the impact of the tank body's own shaking and the violent shaking of the fuel on the strength of the fuel tank during the operation of the excavator.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides an excavator fuel tank, comprising a tank body, wherein a plurality of fixed supports are arranged on the tank body, and the plurality of fixed supports are respectively arranged on the outer side wall of the tank body, and the tank body is fixedly connected to the excavator body through the plurality of fixed supports.

[0007] Furthermore, the fixed support includes a fixed plate and a connecting plate, the connecting plate is arranged in the middle of the fixed plate, and the lower surfaces of the connecting plates on the three fixed supports are located in the same plane and are all arranged parallel to the bottom surface of the fuel tank.

[0008] Furthermore, a plurality of bolt holes are evenly formed on the connecting plate, and the connecting plate is fixedly connected to the excavator body by bolts.

[0009] Furthermore, the longitudinal cross-section of the fixing plate is U-shaped and is formed by bending a steel plate.

[0010] Furthermore, the fixed plate includes a bottom plate and a vertical plate, wherein two vertical plates are provided, the two vertical plates are parallel to each other, are respectively fixed on both sides of the outer surface of the bottom plate, and are vertically arranged with respect to the bottom plate.

[0011] Furthermore, a side surface of the fixing plate away from the vertical plate is in close contact with the side wall of the box body and is fixed to the side wall of the box body by welding.

[0012] Furthermore, the longitudinal cross-section of the vertical plate is stepped, including a first transition section and a second transition section, and the first transition section and the second transition section are arranged in sequence from the top end to the bottom end of the vertical plate.

[0013] Furthermore, the height of the first transition section gradually increases from the top of the first transition section to the bottom of the first transition section, the height of the second transition section remains unchanged from the top of the second transition section to the bottom of the second transition section, and the height of the second transition section is less than the height of the bottom of the first transition section.

[0014] Furthermore, the connecting plate is arranged below the first transition section, the two ends of the top surface of the connecting plate are respectively fixedly connected to the bottom ends of the two first transition sections, and the two ends of the side surface of the connecting plate close to the bottom plate are fixedly connected to the two second transition ends.

[0015] Furthermore, arc-shaped weakened openings are provided at the ends of the welds between the two vertical plates and the connecting plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model provides a plurality of fixed supports on the outer side wall of the fuel tank of the excavator, which are connected to the excavator body through the plurality of fixed supports, thereby greatly reducing the height difference between the center of mass of the tank and the fixed supports, and significantly reducing the influence of the shaking of the tank itself and the violent shaking of the fuel on the strength of the fuel tank during operation, and avoiding tearing and damage at the connection between the bottom of the fuel tank and the fixed support due to the severe vibration and shaking of the fuel tank for a long time, thereby preventing oil leakage accidents.

[0018] 2. The utility model arranges a fixed support on the side wall of the fuel tank and arranges a vertical plate on the fixed support. In this case, the vertical plate is equivalent to a reinforcing rib plate of the fuel tank body, thereby further improving the structural strength of the fuel tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the fuel tank in the embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the fixed support structure in the embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the side structure of the fixed support in the embodiment of the utility model;

[0022] Among them, 1. box body; 2. fixed support; 3. fixed plate; 4. connecting plate; 5. bottom plate; 6. vertical plate; 7. first transition section; 8. second transition section; 9. arc-shaped weakened opening. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] A typical implementation of the present utility model is as follows Figure 1 As shown, an excavator fuel tank includes a tank body 1. The tank body 1 is a rectangular structure for containing fuel used by the excavator. A plurality of fixed supports 2 are arranged on the tank body 1. There are three fixed supports 2. The three fixed supports 2 are respectively arranged on the left outer wall of the tank body 1, the right outer wall of the tank body 1 and the rear outer wall of the tank body 1. The fuel tank body 1 is fixedly connected to the excavator frame through the fixed supports 2. Compared with the fixed supports arranged at the bottom of the fuel tank body, the height difference between the center of mass of the tank body and the fixed supports can be greatly reduced, and the influence of the shaking of the tank body itself and the violent shaking of the fuel during operation on the strength of the fuel tank can be significantly reduced.

[0025] like Figure 1 As shown, the fixed support 2 includes a fixed plate 3 and a connecting plate 4. The connecting plate 4 is arranged in the middle of the fixed plate 3. The lower surfaces of the connecting plates 4 on the three fixed supports 2 are all located in the same plane and are all arranged parallel to the bottom surface of the fuel tank body 1. A plurality of bolt holes are evenly opened on the connecting plate 4, which is fixedly connected to the excavator body by bolts. Since the lower surfaces of the connecting plates 4 on the three fixed supports 2 are all located in the same plane and are all arranged parallel to the bottom surface of the fuel tank body 1, it is ensured that the fuel tank does not tilt after being fixed to the excavator body.

[0026] The longitudinal cross-section of the fixing plate 3 is U-shaped and is formed by bending a steel plate. The fixing plate 3 includes a bottom plate 5 and a vertical plate 6. Two vertical plates 6 are provided. The two vertical plates 6 are parallel to each other and are respectively fixed on both sides of the outer surface of the bottom plate 5 and are arranged perpendicular to the bottom plate 5. The side surface of the fixing plate 3 away from the vertical plate 6 is close to the side wall of the box body 1 and is welded and fixed to the side wall of the box body 1. At this time, the vertical plate 6 is equivalent to the reinforcing rib plate of the fuel tank body 1, which further improves the structural strength of the fuel tank body 1.

[0027] The vertical cross section of the vertical plate 6 is stepped. Figure 3 As shown, it includes a first transition section 7 and a second transition section 8, and the first transition section 7 and the second transition section 8 are arranged in sequence from the top end of the vertical plate 6 to the bottom end of the vertical plate 6. The height of the first transition section 7 gradually increases from the top end of the first transition section 7 to the bottom end of the first transition section 7, and the height of the second transition section 8 remains unchanged from the top end of the second transition section 8 to the bottom end of the second transition section 8. The height of the second transition section 8 is less than the height of the bottom end of the first transition section 7, so that a height difference is formed between the bottom end of the first transition section 7 and the top end of the second transition section 8.

[0028] The connecting plate 4 is arranged below the first transition section 7, and the two ends of the top surface of the connecting plate 4 are fixedly connected to the bottom ends of the two first transition sections 7 respectively, the two ends of the side surface of the connecting plate 4 close to the bottom plate 5 are fixedly connected to the two second transition sections 8, and the middle part of the side surface of the connecting plate 4 close to the bottom plate 5 is fixedly connected to the bottom plate 5, thereby ensuring the stability of the connection between the connecting plate 4 and the fixed plate 3.

[0029] The height of the connecting plate 4 is greater than the height of the bottom end of the first transition section 7, and a height difference is formed between the bottom end of the first transition section 7 and the top end of the second transition section 8. When the connecting plate 4 is fixedly connected to the excavator body by bolts, the bottom end of the first transition section 7 and the connecting plate 4 support each other, thereby further ensuring the stability of the connection between the fuel tank body 1 and the body.

[0030] Arc-shaped weakened openings 9 are provided at the ends of the welds between the two vertical plates 6 and the connecting plate 4, which can effectively reduce the risk of weld cracking.

[0031] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An excavator fuel tank, characterized in that: It comprises a box body, on which a plurality of fixed supports are arranged, and the plurality of fixed supports are respectively arranged on the outer side wall of the box body, and the box body is fixedly connected to the excavator body through the plurality of fixed supports; The fixed support includes a fixed plate and a connecting plate, wherein the connecting plate is arranged in the middle of the fixed plate, and the lower surfaces of the connecting plates on the three fixed supports are located in the same plane and are all arranged parallel to the bottom surface of the fuel tank.

2. An excavator fuel tank as claimed in claim 1, characterized in that: The connecting plate is evenly provided with a plurality of bolt holes, and is fixedly connected to the excavator body by bolts.

3. The excavator fuel tank according to claim 1, characterized in that: The longitudinal section of the fixing plate is U-shaped and is formed by bending a steel plate.

4. The excavator fuel tank according to claim 1, characterized in that: The fixed plate comprises a bottom plate and a vertical plate. Two vertical plates are provided. The two vertical plates are parallel to each other, respectively fixed on two sides of the outer surface of the bottom plate, and are vertically arranged with respect to the bottom plate.

5. An excavator fuel tank as claimed in claim 4, characterized in that: The side surface of the fixing plate away from the vertical plate is in close contact with the side wall of the box body and is fixed by welding to the side wall of the box body.

6. The excavator fuel tank according to claim 4, characterized in that: The longitudinal cross-section of the vertical plate is stepped, and includes a first transition section and a second transition section, wherein the first transition section and the second transition section are sequentially arranged from the top end to the bottom end of the vertical plate.

7. An excavator fuel tank as claimed in claim 6, characterized in that: The height of the first transition section gradually increases from the top to the bottom of the first transition section, the height of the second transition section remains unchanged from the top to the bottom of the second transition section, and the height of the second transition section is less than the height of the bottom of the first transition section.

8. An excavator fuel tank as claimed in claim 7, characterized in that: The connecting plate is arranged below the first transition section, the two ends of the top surface of the connecting plate are respectively fixedly connected to the bottom ends of the two first transition sections, and the two ends of the side surface of the connecting plate close to the bottom plate are fixedly connected to the two second transition ends.

9. An excavator fuel tank as claimed in claim 8, characterized in that: Arc-shaped weakened openings are provided at the ends of the welds between the two vertical plates and the connecting plate.

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