Plastic fuel tank mounting structure and excavator

Abstract

The utility model relates to a fuel tank mounting structure, and provides a plastic fuel tank mounting structure and an excavator in order to solve the problem that a high plastic fuel tank is difficult to mount, in the plastic fuel tank mounting structure, the bottom bearing surface of a plastic fuel tank is located on a bearing platform, and the front side face of the plastic fuel tank is attached to the rear side face of a hydraulic fuel tank; the U-shaped hoop is hooped on the plastic fuel tank with an opening facing forward, and two ends of the front part of the U-shaped hoop are detachably and fixedly connected with the hydraulic oil tank; mounting recesses are formed in the lower parts of the left and right sides of the plastic fuel tank A bolt avoiding groove directly communicated with the bottom bearing surface is formed in the bottom surface of the mounting recess; and mounting bolts for connecting the bearing platform and the mounting pressing plate in the mounting recess are arranged in the bolt avoiding grooves. In the utility model, the bottom of the plastic fuel tank is fixed on the bearing platform, the upper part of the plastic fuel tank is fixed on the hydraulic fuel tank through the hoop, and the hydraulic fuel tank is used as a support for the plastic fuel tank to fix the plastic fuel tank, so that the problem that the high plastic fuel tank is difficult to install and fix is solved.

Description

Technical Field

[0001] The utility model relates to a fuel tank installation structure, and more specifically, to a plastic fuel tank installation structure and an excavator. Background Art

[0002] Plastic fuel tanks are widely used in construction machinery as fuel tanks due to their advantages such as light weight, corrosion resistance, and good sealing performance. However, due to the material problems of plastic fuel tanks, their strength is relatively low, and it is not suitable to directly set threaded holes on them for fixed installation. The oil in the fuel tank will shake with the shaking of the machine equipment, and the oil in the fuel tank will generate surging impacts on the fuel tank wall. The shaking impact of the oil in the fuel tank will cause the fuel tank to shake, which has relatively high requirements for the fixed installation of the fuel tank. Especially for large-volume and relatively high plastic fuel tanks, if the fuel tank cannot be reasonably fixed and installed, the fuel tank may crack during use. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is the problem that it is not easy to install a relatively high plastic fuel tank, and to provide a plastic fuel tank installation structure and an excavator.

[0004] The technical solution for the utility model to achieve its purpose is: a plastic fuel tank installation structure, including a bearing platform, a plastic fuel tank, and a hydraulic oil tank fixedly installed on the bearing platform; in addition, it further includes a U-shaped hoop. The bottom bearing surface of the plastic fuel tank is located on the bearing platform, and its front side is abutted against the rear side of the hydraulic oil tank; the U-shaped hoop is opened forward and hooped on the plastic fuel tank, and the two front ends of the U-shaped hoop are detachably fixedly connected to the hydraulic oil tank; installation depressions are arranged at the lower parts of the left and right side surfaces of the plastic fuel tank; a bolt avoidance groove leading to the bottom bearing surface of the plastic fuel tank is arranged at the bottom surface of the installation depression; installation bolts connecting the bearing platform and the installation pressing plate installed in the installation depression are arranged in the bolt avoidance groove.

[0005] In the plastic fuel tank installation structure of the utility model, there is one U-shaped hoop and it is arranged in the middle in the vertical direction of the plastic fuel tank, or there are two or more U-shaped hoops and they are arranged at intervals in the vertical direction.

[0006] In the plastic fuel tank installation structure of the utility model, grooves for accommodating the U-shaped hoop are arranged at the rear side and the left and right side surfaces of the plastic fuel tank at the position where the U-shaped hoop is arranged, and buffer pads are arranged between the groove walls and the U-shaped hoop.

[0007] In the plastic fuel tank installation structure of the utility model, hooks and threaded locking connectors are respectively arranged at the two front ends of the U-shaped hoop, and hanging buckles matched with the hooks and connection seats matched with the threaded locking connectors are arranged on the hydraulic oil tank.

[0008] In the installation structure of the plastic fuel tank of the present utility model, there are two bolt avoidance grooves provided on the bottom surface of each installation depression, and they are arranged at intervals front and back.

[0009] In the installation structure of the plastic fuel tank of the present utility model, the installation pressing plate in the installation depression is in an L shape, and its vertical and horizontal parts are respectively abutted against the vertical wall surface and the bottom surface of the installation depression.

[0010] In the installation structure of the plastic fuel tank of the present utility model, a rubber pad is provided between the installation pressing plate and the plastic fuel tank.

[0011] In the installation structure of the plastic fuel tank of the present utility model, the lower part of the plastic fuel tank is in a convex shape protruding downward, and the bottom bearing surface of the plastic fuel tank is composed of the left and right step surfaces of the convex shape structure.

[0012] In the installation structure of the plastic fuel tank of the present utility model, a rubber pad is provided between the bottom bearing surface of the plastic fuel tank and the bearing platform.

[0013] The technical solution adopted by the present utility model to achieve its purpose is: an excavator, the plastic fuel tank of which has the aforementioned plastic fuel tank installation structure, wherein the bearing platform is a slewing platform.

[0014] Compared with the prior art, in the present utility model, the bottom of the plastic fuel tank is fixed on the bearing platform, and the upper part is fixed on the hydraulic oil tank through a hoop. The hydraulic oil tank is used as the support of the plastic fuel tank to fix it, so as to solve the problem that it is difficult to install and fix a plastic fuel tank with a high height. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the installation structure of the plastic fuel tank of the present utility model.

[0016] Figure 2 is a right-side schematic diagram of the decomposition of the installation structure of the plastic fuel tank of the present utility model.

[0017] Figure 3 is a left-side schematic diagram of the decomposition of the installation structure of the plastic fuel tank of the present utility model.

[0018] Figure 4 is a schematic diagram of the decomposition of the U-shaped hoop and the plastic fuel tank in the installation structure of the plastic fuel tank of the present utility model.

[0019] Figure 5 is a schematic structural diagram of the hydraulic oil tank in the installation structure of the plastic fuel tank of the present utility model.

[0020] Names and serial numbers of the components in the figure:

[0021] Bearing platform 10.

[0022] Hydraulic oil tank 20, connecting seat 21, hanging buckle 22.

[0023] Plastic fuel tank 30, installation depression 31, bolt avoidance groove 32, groove 33, bottom bearing surface 34.

[0024] U-shaped hoop 40, hook 41, threaded locking connector 42.

[0025] Installation pressing plate 50, installation bolt 51, upper rubber pad 52, lower rubber pad 53, installation nut 54. Specific implementation manner

[0026] The following describes the specific implementation manner in conjunction with the accompanying drawings.

[0027] Figures 1 to 5 The installation structure of the plastic fuel tank in an embodiment of the present utility model is shown.

[0028] As Figures 1 to 5 shown, the plastic fuel tank installation structure includes a bearing platform 10, a plastic fuel tank 30, and a hydraulic oil tank 20 fixedly installed on the bearing platform 10; in addition, it further includes a U-shaped hoop 40. The bottom bearing surface 34 of the plastic fuel tank 30 is located on the bearing platform 10, and the front side of the plastic fuel tank 30 abuts against the rear side of the hydraulic oil tank 20; the U-shaped hoop 40 is opened forward and clamped on the plastic fuel tank 30. The front ends of both ends of the U-shaped hoop 40 are detachably and fixedly connected to the hydraulic oil tank 20; installation depressions 31 are provided at the lower parts of the left and right sides of the plastic fuel tank 30; a bolt avoidance groove 32 leading to the bottom bearing surface 34 of the plastic fuel tank 30 is provided on the bottom surface of the installation depression 31; installation bolts 51 connecting the bearing platform 10 and the installation pressing plate 50 in the installation depression 31 are arranged in the bolt avoidance groove 32.

[0029] In this embodiment, there is one U-shaped hoop 40 and it is arranged in the middle in the vertical direction of the plastic fuel tank 30. In other embodiments, the number of U-shaped hoops 40 can also be two or more, for example, two or three. Two or more U-shaped hoops 40 are arranged at intervals in the vertical direction on the plastic fuel tank 30. The front ends (U-shaped opening ends) of each U-shaped hoop 40 are detachably and fixedly connected to the hydraulic oil tank 20.

[0030] As Figure 4 Figure 5As shown, hooks 41 and threaded locking connectors 42 are respectively arranged at both ends of the front part of the U-shaped hoop 40. A hanging buckle 22 matching with the hook 41 is arranged on the right side surface of the hydraulic oil tank 20, and a connecting seat 21 matching with the threaded locking connector 42 is arranged on the right side surface of the hydraulic oil tank 20. When the U-shaped hoop 40 is connected to the hydraulic oil tank 20, the hook 41 is first buckled to the hanging buckle 22 on the hydraulic oil tank 20, and the stud in the threaded locking connector 42 passes through the hole in the connecting seat 21 and then is connected in cooperation with a nut. In other embodiments, the connection mode between the hook 41 and the hanging buckle 22 can also be replaced by the connection mode between the threaded locking connector 42 and the connecting seat 21.

[0031] On the rear side surface and the left and right side surfaces of the plastic fuel tank 30, grooves 33 for accommodating the U-shaped hoop 40 are arranged at the positions where the U-shaped hoop 40 is arranged.

[0032] The U-shaped hoop 40 is usually made of iron. Compared with the U-shaped hoop 40, the plastic fuel tank 30 is softer in hardness. To facilitate the cooperation between the two, a buffer pad is arranged between the groove wall of the groove 33 and the U-shaped hoop 40. The buffer pad is usually made of rubber material.

[0033] As Figure 2 Figure 3 As shown, the lower part of the plastic fuel tank 30 is in a convex shape protruding downward, and the bottom bearing surface 34 of the plastic fuel tank 30 is composed of the left and right step surfaces of the convex structure. There are two bolt avoidance grooves 32 arranged at the bottom surface of each installation depression 31 and arranged at intervals front and back.

[0034] The installation pressing plate 50 in the installation depression 31 is in an L shape, and its vertical and horizontal parts are respectively abutted against the vertical wall surface and the bottom surface of the installation depression 31.

[0035] An upper rubber pad 52 is arranged between the installation pressing plate 50 and the plastic fuel tank 30, and a lower rubber pad 53 is arranged between the bottom bearing surface 34 of the plastic fuel tank 30 and the bearing platform 10. The installation bolt 51 passes through the installation pressing plate 50, the upper rubber pad 52, the bolt avoidance groove 32, the lower rubber pad 53 and the bearing platform 10 from top to bottom in sequence and is connected in cooperation with the installation nut 54, so as to realize the fixed connection between the lower part of the plastic fuel tank 30 and the bearing platform 10.

[0036] This embodiment also provides an excavator, which is configured with a plastic fuel tank 30, and the plastic fuel tank 30 is installed by using the aforementioned plastic fuel tank installation structure, wherein the bearing platform 10 is the slewing platform of the excavator.

[0037] On the excavator, the hydraulic oil tank 20 is made of welded steel plates and has high strength. The bottom of the plastic fuel tank 30 is fixed on the bearing platform 10, and the upper part is fixed on the hydraulic oil tank 20 through a U-shaped hoop 40. The hydraulic oil tank 20 is used as a support for the plastic fuel tank 30 to fix it, solving the problem that it is difficult to install and fix a plastic fuel tank with a high height.

Claims

1. A plastic fuel tank installation structure, comprising a bearing platform, a plastic fuel tank, and a hydraulic oil tank fixedly installed on the bearing platform; characterized in that: It also includes a U-shaped clamp; the bottom bearing surface of the plastic fuel tank is located on the bearing platform, and the front side of the plastic fuel tank is against the rear side of the hydraulic oil tank; the U-shaped clamp opening faces forward and is clamped on the plastic fuel tank, and the two front ends are detachably fixedly connected to the hydraulic oil tank; the lower parts of the left and right sides of the plastic fuel tank are both provided with installation recesses; the bottom surface of the installation recess is provided with a bolt avoidance groove that directly passes through the bottom bearing surface of the plastic fuel tank; the bolt avoidance groove is arranged with installation bolts connecting the bearing platform and the installation pressure plate in the installation recess.

2. The plastic fuel tank installation structure according to claim 1, characterized in that: The U-shaped clamp is one and is arranged in the middle of the plastic fuel tank in the vertical direction, or the U-shaped clamp is two or more and is arranged at intervals in the vertical direction.

3. The plastic fuel tank installation structure according to claim 2, characterized in that: The rear side surface and the left and right side surfaces of the plastic fuel tank are provided with grooves for accommodating the U-shaped clamp at the position where the U-shaped clamp is arranged, and a buffer pad is provided between the groove wall and the U-shaped clamp.

4. The plastic fuel tank mounting structure according to any one of claims 1 to 3, characterized in that: The two ends of the front part of the U-shaped clamp are respectively provided with a hook and a threaded locking connector, and the hydraulic oil tank is provided with a hook buckle matched with the hook and a connecting seat matched with the threaded locking connector.

5. The plastic fuel tank installation structure according to claim 1, characterized in that: The number of bolt avoidance grooves provided on the bottom surface of each installation recess is two and they are spaced apart from each other in the front and back.

6. The plastic fuel tank installation structure according to claim 5, characterized in that: The mounting pressure plate in the mounting recess is L-shaped, and its vertical and horizontal parts are respectively abutted against the vertical wall surface and the bottom surface of the mounting recess.

7. The plastic fuel tank installation structure according to claim 6, characterized in that: A rubber pad is arranged between the mounting pressure plate and the plastic fuel tank.

8. The plastic fuel tank installation structure according to claim 1, characterized in that: The lower part of the plastic fuel tank is in a convex shape convex downward, and the bottom bearing surface of the plastic fuel tank is composed of left and right step surfaces of the convex structure.

9. The plastic fuel tank installation structure according to claim 8, characterized in that: A rubber pad is arranged between the bearing surface at the bottom of the plastic fuel tank and the bearing platform.

10. An excavator, characterized in that: The plastic fuel tank has the plastic fuel tank installation structure described in any one of claims 1 to 9, wherein the bearing platform is a rotating platform.

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