A flexible fixed fuel tank and loader

Abstract

The application discloses a flexible fuel tank and loader, which comprises a vehicle frame, a counterweight connected to the vehicle frame, a fuel tank arranged between the vehicle frame and the counterweight, a counterweight platform arranged on the counterweight and used for supporting the fuel tank, a protruding limiting block arranged on the counterweight platform, an installation groove arranged on the lower part of the fuel tank and used in cooperation with the protruding limiting block, and a stud and a limiting spring arranged between the fuel tank and the vehicle frame. When the counterweight needs to be removed or replaced, the fuel tank can be rigidly connected and hung on the fuel tank mounting plate of the rear vehicle frame, at this time, the counterweight has no supporting effect on the fuel tank, the separation can be carried out, the related pipelines are not affected, the counterweight main machine is convenient to temporarily transfer, and when the container is loaded, the fuel tank can also be removed, so that the cost reduction and efficiency improvement of the loader are realized, the detachability and maintainability are considered, the structure is reliable, and the application is easy to realize.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engineering machinery, in particular to a flexible fixed fuel tank and a loader. BACKGROUND

[0002] The traditional rear fuel tank of the loader is generally fixed on the tank mounting plate at the tail of the rear frame by bolts. The rear tail plate of the rear frame near the tank mounting plate is used to fix the counterweight. When the loader is turning at high speed or driving on uneven road, the loader will vibrate, and the heavy counterweight will cause the rear frame to twist due to frequent vibration, and the tank mounting plate fixed at the tail of the rear frame will also be bent due to the twisting effect, which will easily cause the bolts to break and the fuel tank to bend and crack, which has great safety hazards. In order to increase the rigidity of the fuel tank and the rigidity of the rear frame, the traditional reinforcing installation method fixes the fuel tank body on the counterweight protection bottom plate through a binding belt, then installs the protection bottom plate on the counterweight and finally fixes it on the frame. This method needs to separately set up a counterweight protection plate for supporting the fuel tank, and when the counterweight is replaced, the fuel tank and related pipelines need to be removed together, which greatly affects the efficiency of disassembly and assembly. Moreover, this reinforcing method only alleviates the twisting degree of the rear frame and prolongs the service life of the fuel tank, but does not fundamentally solve this problem. In addition, during the operation of the loader, the protection plate is easily hit and deformed, which may cause the fuel tank to fail. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a flexible fixed fuel tank and a loader with simple structure and good effect.

[0004] The present application is implemented by the following technical scheme: a flexible fixed fuel tank and a loader, comprising a frame, the frame is connected with a counterweight, a fuel tank is arranged between the frame and the counterweight, a counterweight platform for supporting the fuel tank is arranged on the counterweight, a protruding limiting block is arranged on the counterweight platform, a mounting groove matched with the protruding limiting block is arranged on the lower part of the fuel tank, a damping cap and a rubber pad are arranged between the mounting groove and the protruding limiting block; a mounting hole and a counterbore I are arranged on the upper part of the fuel tank, a double-headed stud is arranged in the mounting hole, a limiting spring is arranged outside the double-headed stud, and a light hole and a counterbore II matched with the double-headed stud and the limiting spring are arranged on the lower surface of the frame.

[0005] Further, a rear frame wing plate and a rear frame tail plate are arranged on the frame.

[0006] The counterweight and the rear frame tail plate are connected together through a fastener, and the fuel tank is limited by the double-headed stud and the rear frame wing plate.

[0007] The counterweight and the rear frame wing plate are connected together through fasteners, and the fuel tank is connected together with the rear frame wing plate through studs and nuts.

[0008] The light hole and the counterbore II are arranged on the rear frame wing plate.

[0009] The fuel tank adopts PE material rotational molding to form a regular or irregular shape.

[0010] The counterweight is of an integrated design, and the shape of the counterweight platform is consistent with the bottom of the fuel tank.

[0011] A loader comprises a flexible fuel tank.

[0012] The flexible fuel tank and the loader have the following advantages: when the counterweight needs to be removed or replaced, the fuel tank can be rigidly connected and hung on the fuel tank mounting plate of the rear frame, at this time, the counterweight has no supporting effect on the fuel tank, and the relevant pipeline is not affected, the main machine without the counterweight can be temporarily transported, and when the container is loaded, the fuel tank does not need to be removed, the cost of the loader is reduced, the efficiency is improved, the detachability and maintainability are considered, the structure is reliable, and the implementation is easy. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the application;

[0014] Figure 2 is a schematic diagram of the structure of the application;

[0015] Figure 3 is a schematic diagram of the fuel tank of the application;

[0016] Figure 4 is a partial sectional view of the fuel tank mounting of the application;

[0017] Figure 5 is Figure 4 is an enlarged schematic diagram of the structure at I in the figure.

[0018] In the figure: 1, fuel tank, 2, counterweight, 3, frame, 4, stud, 5, nut, 6, limit spring, 7, damping cap, 8, rubber pad, 101, mounting groove, 102, mounting hole, 103, counterbore I, 201, protruding limit block, 202, counterweight platform, 301, rear frame wing plate, 302, rear frame tail plate, 303, counterbore II, 304, light hole. DETAILED DESCRIPTION

[0019] As Figures 1 to 5The flexible fixed fuel tank and loader shown, including the frame 3, the frame 3 is connected with the counterweight 2, the frame 3 and counterweight 2 is equipped with fuel tank 1, the counterweight is equipped with the counterweight platform 202 for supporting fuel tank 1, the counterweight platform 202 is equipped with the convex limit block 201, the lower part of the fuel tank 1 is equipped with the installation groove 101 used in cooperation with the convex limit block 201, the installation groove 101 and the convex limit block 201 is equipped with the damping rubber cap 7 and rubber pad 8;The upper part of the fuel tank 1 is equipped with mounting hole 102 and counterbore I 103, the double-headed stud 4 is arranged in the mounting hole 102, the double-headed stud 4 is equipped with a limit spring 6, the lower surface of the frame 3 is equipped with a light hole 304 and a counterbore II 303 used in cooperation with the double-headed stud 4 and the limit spring 6. The fuel tank 1 is made of PE material and is roll molded into a regular or irregular shape. The counterweight 2 is designed as a whole, and the shape of the counterweight platform 202 is consistent with the bottom of the fuel tank 1. A loader includes a flexible fixed fuel tank. The flexible fixed fuel tank and loader of the present application, the fuel tank is arranged in the space between the frame and the counterweight, the shape of the fuel tank is determined according to the internal space boundary of the actual frame and counterweight, and the fuel tank is hidden in the space, the fuel tank is made of PE material and is roll molded into a regular or irregular shape, the top is reserved with a counterbore I and a mounting hole and is provided with threads, the mounting hole is provided with a double-headed stud, the counterbore I is used for fixing a limit spring, the bottom is pre-installed with an installation groove, the tank body is partially reinforced and is provided with corresponding oil port, interface and the like, when the fuel tank adopts a regular shape, the oil port and interface are provided, and are connected with the power system through a pipeline. The fuel tank is hidden between the frame and the counterweight, the bottom of the counterweight is connected and penetrates to form a platform, the filling volume is greatly increased compared with the traditional type counterweight, the platform can support the fuel tank, a plurality of convex limit blocks are welded on the platform for limiting the front and back and left and right displacement of the fuel tank, the relative position of the convex limit blocks is determined according to the installation groove arranged on the bottom of the fuel tank, a damping rubber cap is sleeved on the convex limit block, the damping rubber cap can cooperate with the oil tank groove when the counterweight is installed to the frame, a rubber pad is further arranged between the counterweight and the fuel tank, the rubber pad is provided with a round hole and can pass through the damping rubber cap, during installation, the damping rubber cap and the rubber pad are installed on the convex mounting block on the counterweight platform, the fuel tank is placed on the platform of the counterweight, the installation groove on the lower surface of the fuel tank is installed to the damping rubber cap, the lower surface of the fuel tank is in contact with the rubber pad, the arrangement of the convex limit block, the damping rubber cap and the rubber pad on the counterweight platform plays a role in limiting and buffering the front and back and left and right displacement of the fuel tank. The upper part of the fuel tank is provided with a double-headed stud and a limit spring between the frame, the double-headed stud is installed in the counterbore I on the upper surface of the fuel tank and the counterbore II of the frame, a nut can be used for fastening when necessary, the limit spring is sleeved outside the double-headed stud and is installed in the mounting hole on the upper surface of the fuel tank and the light hole of the frame. The counterweight is designed as a whole, the whole design has good rigidity, which can ensure the supporting force of the fuel tank, and is convenient for later maintenance and repair.The use and rear concealed installation of the fuel tank of the present application are more firm and reliable, in addition, the fuel tank of the loader is dragged by the counterweight, which plays the role of weighting the counterweight. The fixing of the fuel tank uses limiting springs, damping rubber caps and rubber pads, when the loader passes through uneven road, the cracking of the fuel tank caused by the torsion of the rear frame is avoided, and the reliability of the fuel tank is improved. The flexible fixing mode of the fuel tank is easy to realize, the space utilization rate is high, the lightweight is realized, and the reliability of the product is improved.

[0020] As shown in Figures 1 to 5 A flexible and fixed fuel tank and loader, the rear frame wing plate 301 and the rear frame tail plate 302 are arranged on the frame 3. The light hole 304 and the counterbore II 303 are arranged on the rear frame wing plate 301. The counterweight 2 is connected with the rear frame tail plate 302 through fasteners, and the fuel tank 1 is limited with the rear frame wing plate 301 through the stud 4. The counterweight of the present application is installed on the rear tail plate of the rear frame through fasteners, and the fuel tank placed on the counterweight is limited with the rear frame fuel tank mounting plate through the counterweight support surface, which can ensure that the fuel tank is fixed firmly and reliably. The fuel tank is connected with the rear frame wing plate through the stud and the limiting spring, which plays a limiting role on the fuel tank. The stud passes through the light hole on the frame wing plate, one end of the limiting spring is embedded in the counterbore I on the upper surface of the fuel tank, and the other end is embedded in the counterbore II on the lower surface of the rear frame wing plate. This connection mode does not need fasteners to fix the fuel tank, but can realize the fixation of the fuel tank through the limiting of the platform of the counterweight and the rear frame wing plate. When the whole machine is assembled, the assembly efficiency can be greatly improved. The counterweight supporting the fuel tank is fixedly installed on the rear tail plate of the rear frame, at this time, the limiting spring on the top of the fuel tank is clamped in the counterbore below the rear frame fuel tank mounting surface, avoiding the spring from moving. After the counterweight is installed, the limiting spring on the fuel tank is compressed, but the limiting spring still has a further compression and expansion allowance. The spring force of the limiting spring limits the fuel tank from above and below through the rear frame fuel tank mounting plate and the counterweight. The concealed installation of the fuel tank fully utilizes the space between the structural members. It is installed on the platform of the counterweight, and is limited by the counterweight platform, the welded limiting protrusion and the rear frame wing plate. The fixing mode is stable and reliable. This arrangement can also play the effect of weighting the counterweight. When the loader runs on uneven road, the heavy counterweight will cause the torsion of the rear frame tail, and the rear frame wing plate will also be bent and deformed. At this time, the limiting spring will compensate for the deformation space, avoiding the upper surface of the fuel tank from deforming with the wing plate to cause local stretching or compression. The spring force still limits the fuel tank, ensuring that the fuel tank is not affected by the deformation, and improving the reliability of the fuel tank.

[0021] As shown in Figures 1 to 5The flexible fixed fuel tank and loader shown, the counterweight 2 and the rear frame wing plate 301 are connected together through fasteners, the fuel tank 1 is connected together with the rear frame wing plate 301 through the stud 4 and the nut 5. The counterweight can also be installed on the rear frame wing plate, the fuel tank is installed on the rear frame tail plate through the support of the counterweight platform, the fuel tank is connected with the rear frame wing plate through the stud, and the fuel tank is rigidly fixed through the nut, at this time, the fuel tank and the counterweight are separated, when the counterweight needs to be removed or replaced, the fuel tank can be rigidly connected and hung on the rear frame wing plate, at this time, the counterweight has no supporting effect on the fuel tank, and the related pipeline is not affected, facilitating temporary transfer of the counterweight host, and when the container is loaded, the fuel tank can also be removed, this installation mode not only realizes the cost reduction and efficiency improvement of the loader, but also considers the detachability and maintainability, and the structure is reliable and easy to realize.

[0022] The flexible fixed fuel tank and loader of the application make full use of the limited structure space of the loader rear frame and the counterweight, and design a fuel tank which can be placed on the counterweight and fixed on the rear frame tank mounting plate, the fuel tank placed on the counterweight is limited by the counterweight support surface and the rear frame tank mounting plate, which can ensure that the fuel tank is fixed firmly and reliably, the fuel tank is supported by the counterweight and limited by the rear frame wing plate, which can avoid the cracking and damage of the fuel tank caused by the torsion of the rear frame. At the same time, the fuel tank is provided with a stud, when the counterweight supports the fuel tank and limits the rear frame, the stud on the fuel tank will protrude from the tank mounting plate, and the fuel tank can be fixed on the tank mounting plate through the nut, when the counterweight needs to be disassembled or replaced, the fuel tank can be fixed on the rear frame tank mounting plate through the nut, so that the counterweight and the fuel tank can be separated, in addition, this arrangement can also play the role of adding weight to the counterweight, achieving a win-win situation, and truly realizing cost reduction and efficiency improvement. Moreover, when the counterweight is removed, the fuel tank can still be hung on the frame, the related pipeline is not affected, facilitating the replacement of the whole machine counterweight and the transfer of the host. The two fixing modes can realize the double installation mode of the counterweight and the rear frame, the fixing is more firm and reliable, which can not only reasonably reduce the design and production cost of the counterweight, but also consider the protection of the fuel tank, and also consider the detachability and maintainability. The application is easy to realize, has high space utilization rate, realizes lightweight, and also improves the reliability of the product.

Claims

1. A flexible secureable fuel tank characterized by: The application relates to a flexible fuel tank, which comprises a frame (3) connected with a counterweight (2), wherein a fuel tank (1) is arranged between the frame (3) and the counterweight (2), the counterweight is provided with a counterweight platform (202) for supporting the fuel tank (1), the counterweight platform (202) is provided with a protruding limiting block (201), the lower part of the fuel tank (1) is provided with an installation groove (101) matched with the protruding limiting block (201), a damping rubber cap (7) and a rubber pad (8) are arranged between the installation groove (101) and the protruding limiting block (201), the upper part of the fuel tank (1) is provided with an installation hole (102) and a counterbore I (103), a double-headed stud (4) is arranged in the installation hole (102), the double-headed stud (4) is provided with a limiting spring (6), the lower surface of the frame (3) is provided with a light hole (304) and a counterbore II (303) matched with the double-headed stud (4) and the limiting spring (6). The fuel tank (1) is made of PE material and is roll-molded into a regular or irregular shape. The counterweight (2) is designed in an integrated mode, and the shape of the counterweight platform (202) is matched with the bottom of the fuel tank (1). The fuel tank is arranged in the space between the frame and the counterweight, and the shape of the fuel tank is determined according to the internal space boundary of the actual frame and counterweight and is hidden in the space. The frame (3) is provided with a rear frame wing plate (301) and a rear frame tail plate (302). The counterweight (2) is connected with the rear frame tail plate (302) through fasteners, and the fuel tank (1) is limited by the double-headed stud (4) and the rear frame wing plate (301). The counterweight (2) is connected with the rear frame wing plate (301) through fasteners, and the fuel tank (1) is connected with the rear frame wing plate (301) through the double-headed stud (4) and the nut (5). The fuel tank is installed on the rear frame tail plate through the support of the counterweight platform, the fuel tank is connected with the rear frame wing plate through the double-headed stud, and the fuel tank is rigidly fixed through the nut. At this time, the fuel tank and the counterweight are separated, when the counterweight needs to be removed or replaced, the fuel tank is rigidly connected and hung on the rear frame wing plate, at this time, the counterweight has no supporting effect on the fuel tank, and the related pipelines are not affected.

2. A fuel tank as claimed in claim 1, wherein: The light hole (304) and the counterbore II (303) are arranged on the rear frame wing plate (301).

3. A loader characterized by: The application further relates to a flexible fuel tank as claimed in any one of claims 1-2. The application further relates to a flexible fuel tank as claimed in any one of claims 1-2.

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