Engineering machinery integrated box type frame structure and engineering machinery

Abstract

The invention relates to an engineering machinery integrated box type frame structure and engineering machinery, and belongs to the technical field of engineering machinery. A left beam plate is used as tank walls of a fuel tank body structure and a urea tank body structure, and a right beam plate is used as tank walls of a hydraulic oil tank structure, a gas storage tank body structure and a storage battery tank body structure; therefore, a fuel tank body structure, a urea tank body structure, a hydraulic oil tank structure, a gas storage tank body structure and a storage battery tank body structure which are originally independent of the frame are directly integrated on the frame, space utilization can be maximized, the overall layout is more compact, and the partial bending resistance and torsion resistance of the frame are remarkably enhanced through the multiple tank body structures integrated on the frame.

Description

TECHNICAL FIELD

[0001] The application relates to an integrated box-type frame structure of an engineering machine and the engineering machine, and belongs to the technical field of engineering machines. BACKGROUND

[0002] With the increasingly stringent requirements for environmental protection worldwide and the continuous improvement of the emission standards of engineering machines, the aftertreatment system and related parts thereof are increased, especially in the machine type with limited space, the arrangement of the aftertreatment system and the urea tank becomes more complex. Meanwhile, the market continuously improves the functional, comfortable, intelligent and safe requirements for the engineering machines, so that the functional configuration of the whole machine is increasingly rich, and the installation of the fuel tank, the urea tank, the hydraulic oil tank, the gas storage tank and the battery tank becomes more and more difficult, and the space requirement of the whole machine is increasingly large, and the existing arrangement mode is difficult to simultaneously meet the space and strength requirements. SUMMARY

[0003] The application aims to provide an integrated box-type frame structure of an engineering machine, which takes the left beam plate as the tank wall of the fuel tank body structure and the urea tank body structure, and takes the right beam plate as the tank wall of the hydraulic oil tank structure, the gas tank body structure and the battery tank body structure, so that the fuel tank body structure, the urea tank body structure, the hydraulic oil tank structure, the gas tank body structure and the battery tank body structure originally independent of the frame are directly integrated on the frame, the space utilization rate can be improved, the overall layout is more compact, and the multiple tank body structures integrated on the frame significantly enhance the local bending and torsion resistance of the frame.

[0004] In a first aspect, the application provides an integrated box-type frame structure of an engineering machine, which comprises: a left beam plate and a right beam plate symmetrically arranged on the two sides of the box-type frame; a left side plate welded on the left beam plate, a fuel tank left side plate and a urea tank left side plate are welded on the left side plate, and a left side oil tank upper side plate is welded on the upper side of the fuel tank left side plate and the urea tank left side plate; an oil tank partition plate is welded between the left side plate and the left side oil tank upper side plate; a right side plate welded on the right beam plate, a hydraulic oil tank right side plate, a gas tank right side plate and a battery mounting right side plate are welded on the right side of the right side plate; a hydraulic oil tank upper side plate is welded on the upper side of the hydraulic oil tank right side plate and the gas tank right side plate, and a gas-electric partition plate and a liquid-gas partition plate are welded between the hydraulic oil tank upper side plate and the right side plate; the left beam plate, the left side plate, the fuel tank left side plate, the left side oil tank upper side plate and the oil tank partition plate are connected to form a fuel tank body structure; and the left beam plate, the left side plate, the urea tank left side plate, the left side oil tank upper side plate and the oil tank partition plate are connected to form a urea tank body structure; The right beam plate, the right side bottom plate, the hydraulic oil tank right side plate, the hydraulic oil tank upper side plate and the liquid-gas separation plate are connected to form a hydraulic oil tank structure; the right beam plate, the right side bottom plate, the gas tank right side plate, the hydraulic oil tank upper side plate, the liquid-gas separation plate and the gas-electricity separation plate are connected to form a gas tank body structure; and the right beam plate, the gas-electricity separation plate, the battery mounting right side plate and the right side bottom plate are connected to form a battery tank body structure.

[0005] Optionally, the bottom edge of the oil tank separation plate is welded and connected along the top wall of the left side bottom plate, and the side edge of the oil tank separation plate is welded and connected with the side wall of the fuel tank left side plate.

[0006] Optionally, the left side plate formed by the fuel tank left side plate and the urea tank left side plate is symmetrical with the left beam plate.

[0007] Optionally, a urea plug is arranged on the bottom wall of the left side bottom plate.

[0008] Optionally, a solution interface mounting seat, a urea filling port mounting seat, a refueling pipe mounting seat, a liquid level meter mounting seat and an oil suction flange seat are welded on the top wall of the left oil tank upper side plate.

[0009] Optionally, a refueling steel pipe, an oil return pipe flange and an oil pipe flange are welded and connected on the top wall of the hydraulic oil tank upper side plate.

[0010] Optionally, the right side plate formed by the hydraulic oil tank right side plate, the gas tank right side plate and the battery mounting right side plate is symmetrical with the right beam plate.

[0011] Optionally, a hydraulic oil tank oil outlet flange seat is welded and connected on the outer wall of the hydraulic oil tank right side plate.

[0012] Optionally, the top edges of the liquid-gas separation plate and the gas-electricity separation plate are welded and connected along the lower side wall of the hydraulic oil tank upper side plate, and the bottom edges are welded and connected along the upper side wall of the right side bottom plate.

[0013] In the second aspect, the application provides an engineering machinery, which comprises the engineering machinery integrated box type frame structure.

[0014] Compared with the prior art, the application has the following beneficial effects: 1. The left beam plate is used as the tank wall of the fuel tank body structure and the urea tank body structure, and the right beam plate is used as the tank wall of the hydraulic oil tank structure, the gas tank body structure and the battery tank body structure; thus, the fuel tank body structure, the urea tank body structure, the hydraulic oil tank structure, the gas tank body structure and the battery tank body structure, which are originally independent of the frame, are directly integrated on the frame, the space utilization is maximized, the overall layout is more compact, and the multiple tank body structures integrated on the frame significantly enhance the local bending and torsion resistance of the frame.

[0015] 2. The fuel tank body structure formed by welding the left beam plate, the left side bottom plate, the fuel tank left side plate, the left side fuel tank upper side plate and the fuel tank partition plate, effectively utilizes the space outside the frame beam, integrates the fuel tank on the frame main body, optimizes the space utilization, frees up the space in the middle and rear of the chassis, provides favorable arrangement space for the complex aftertreatment system, and by integrating the fuel tank body structure in the frame structure, the strength and rigidity of the vehicle body structure are enhanced, the safety of the fuel system is improved, and the risk of leakage is reduced.

[0016] 3. The urea tank body structure formed by welding the left beam plate, the left side bottom plate, the urea tank left side plate, the left side fuel tank upper side plate and the fuel tank partition plate, changes the urea tank from a protected accessory to a protective structure, improves the strength of the structure, optimizes the utilization of space, and frees up space for more core or larger systems, making the chassis layout more reasonable and neat.

[0017] 4. The hydraulic oil tank body structure formed by welding the right beam plate, the right side bottom plate, the hydraulic oil tank right side plate, the hydraulic oil tank upper side plate and the liquid-gas partition plate, improves the strength and rigidity of the structure, and the welded connection of the hydraulic oil tank body structure on the side of the frame directly participates in the stress of the frame, like adding a web, significantly enhancing the local bending and torsional resistance of the frame, integrated on the side of the frame, completely avoiding the risk of traditional hanging oil tank being easily bottomed and scratched by ground obstacles, efficiently utilizing the space on the side of the frame and releasing the space of the chassis.

[0018] 5. The gas tank body structure formed by welding the right beam plate, the right side bottom plate, the gas tank right side plate, the hydraulic oil tank upper side plate, the liquid-gas partition plate and the gas-electricity partition plate, can fully utilize the space on the side of the frame, avoid the space waste caused by the fixed angle of traditional cylinders, release the space in the key area, remove the independent gas cylinder on the inside of the frame, provide arrangement space for the drive shaft, battery pack and intake and exhaust system, and at the same time act as a structural reinforcement, like an additional reinforcing rib, significantly improving the local bending and torsional resistance.

[0019] 6. The battery tank body structure formed by welding the right beam plate, the gas-electricity partition plate, the battery mounting right side plate and the right side bottom plate, compared with the traditional independent plastic or simple metal tray structure, brings significant improvement in protection, structural strength safety and system integration, and the shape is customized according to the remaining space on the side of the frame, improving the space utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a left rear schematic view of the integrated box type frame structure of the engineering machinery of the present application. Figure 2It is the right rear view of the engineering machinery integrated box type frame structure of the application; Figure 3 It is the left rear box of the engineering machinery integrated box type frame structure of the application; Figure 4 It is the right rear box of the engineering machinery integrated box type frame structure of the application; Figure 5 It is the structure diagram of the fuel tank structure and the urea tank structure of the engineering machinery integrated box type frame structure of the application; Figure 6 It is the structure diagram of the hydraulic oil tank structure, the gas storage tank structure and the battery tank structure of the engineering machinery integrated box type frame structure of the application.

[0021] In the figure: 1, left bottom plate; 2, fuel tank left side plate; 3, oil tank partition plate; 4, urea plug; 5, urea tank left side plate; 6, left beam plate; 7, left oil tank upper side plate; 8, solution interface mounting seat; 9, urea filling port mounting seat; 10, oil filling pipe mounting seat; 11, liquid level meter mounting seat; 12, oil suction flange seat; 13, hydraulic oil tank oil outlet flange seat; 14, hydraulic oil tank right side plate; 15, right bottom plate; 16, liquid-gas partition plate; 17, gas storage tank right side plate; 18, gas-electricity partition plate; 19, battery installation right side plate; 20, right beam plate; 21, battery; 22, gas storage tank connecting port; 23, oil filling steel pipe; 24, oil return pipe flange; 25, oil pipe flange; 26, hydraulic oil tank upper side plate; 27, urea tank structure; 28, hydraulic oil tank structure; 29, gas storage tank structure; 30, battery tank structure; 31, fuel tank structure. DETAILED DESCRIPTION

[0022] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more. In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0023] The present application will be further described below in conjunction with the drawings. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot limit the protection scope of the present application.

[0024] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in conjunction with the drawings and examples.

[0025] As Figure 1 and Figure 3As shown, the integrated box-type frame of the engineering machinery of this embodiment is symmetrically provided with a left beam plate 6 and a right beam plate 20 on both sides. A left bottom plate 1 is provided on the left side of the left beam plate 6. The left bottom plate 1 is welded to the outer side wall of the left beam plate 6. A left side plate 2 of the fuel tank is provided on the left side of the left beam plate 6. The left side plate 2 of the fuel tank is respectively welded to the top wall of the left bottom plate 1, the front side wall of the fuel tank partition plate 3 and the bottom wall of the left upper side plate 7 of the fuel tank. The top wall of the left bottom plate 1 is welded to the fuel tank partition plate 3; the left upper side plate 7 of the fuel tank is welded to the top wall of the left bottom plate 1, the left side plate 2 of the fuel tank The top edge and the top edge of the fuel tank partition plate 3 are welded together, and the top wall of the left fuel tank upper side plate 7 is provided with a refueling pipe mounting seat 10, a liquid level gauge mounting seat 11 and an oil suction flange seat 12 which are welded together. The fuel tank structure 31 formed by welding the left beam plate 6, the left bottom plate 1, the left side plate 2 of the fuel tank, the left upper side plate 7 of the fuel tank and the fuel tank partition plate 3 can directly use the side wall of the frame longitudinal beam as the fuel tank wall, merging the space occupied by the traditional frame and the independent fuel tank, maximizing space utilization, improving the possibility of layout in a narrow space, and making the overall layout more compact.

[0026] like Figure 1 and Figure 3 As shown, a urea plug 4 is provided on the bottom wall of the left bottom plate 1, and a urea tank left side plate 5 is connected to the left side of the left bottom plate 1. The urea tank left side plate 5 is welded to the bottom wall of the left fuel tank upper side plate 7 and the side wall of the fuel tank partition plate 3, and a solution interface mounting seat 8 and a urea filling port mounting seat 9 are welded to the top wall of the left fuel tank upper side plate 7.

[0027] In this embodiment, the urea tank structure 27 formed by welding the left beam plate 6, the left bottom plate 1, the urea tank left plate 5, the left fuel tank upper plate 7 and the fuel tank partition plate 3 solves the problem of layout in a small space, improves the low-temperature heating efficiency, transforms the urea tank from a protected accessory to a structural member providing protection, improves the strength of the structure, optimizes the use of space, and makes room for more core or larger systems, making the chassis layout more reasonable and neat.

[0028] like Figure 2 and Figure 4 As shown, the right bottom plate 15 is connected to the right beam plate 20, and the right bottom plate 15 and the outer side wall of the right beam plate 20 are welded together. The right side plate 14 of the hydraulic oil tank is welded to the right side of the right bottom plate 15, and the right side plate 14 of the hydraulic oil tank is welded to the top wall of the right bottom plate 15. The upper side wall of the right bottom plate 15 is welded to a liquid-gas separation plate 16. The right side plate 14 of the hydraulic oil tank is provided with a hydraulic oil tank outlet flange seat 13, and the hydraulic oil tank outlet flange seat 13 is welded to the outer side wall of the right side plate 14 of the hydraulic oil tank. A hydraulic oil tank upper side plate 26 is provided on the upper side of the right bottom plate 15, and the hydraulic oil tank upper side plate 26 is welded to the top edge of the liquid-gas separation plate 16 and the top edge of the right side plate 14 of the hydraulic oil tank. The upper side wall of the hydraulic oil tank upper side plate 26 is provided with a refueling steel pipe 23, an oil return pipe flange 24 and an oil pipe flange 25 welded and connected, The hydraulic oil tank body structure 28 formed by welding the above steel plates can greatly improve the structural strength and rigidity. The welded connection directly involves the stress of the frame side plate tank, like adding a web plate, which significantly enhances the local bending and torsional resistance of the frame. The integrated frame side position completely avoids the risk of traditional hanging oil tank being easily bottomed and scratched by ground obstacles, efficiently utilizes the frame side space and releases the chassis space.

[0029] The hydraulic oil tank body structure 28 formed by welding the above steel plates can greatly improve the structural strength and rigidity. The welded connection directly involves the stress of the frame side plate tank, like adding a web plate, which significantly enhances the local bending and torsional resistance of the frame. The integrated frame side position completely avoids the risk of traditional hanging oil tank being easily bottomed and scratched by ground obstacles, efficiently utilizes the frame side space and releases the chassis space.

[0030] As shown in Figure 2 and Figure 4 , the right side of the right beam plate 20 is provided with a gas tank right side plate 17 and a right side bottom plate 15 welded and connected on the upper side wall, the upper side wall of the right side bottom plate 15 is provided with a gas and electricity separation plate 18 and a right side bottom plate 15 inner wall and a hydraulic oil tank upper side plate 26 lower side wall welded and connected, the upper side wall of the hydraulic oil tank upper side plate 26 is provided with four gas tank connecting ports 22 welded and connected, and the above steel plates are welded and connected to form a gas tank body structure 29, which improves the sealing performance of the overall structure. Through the design of the box type structure, the overall structure is modularized on the side of the frame, fully utilizes the side space, improves the space utilization rate, and at the same time, the side box type structure provides side reinforcement to improve the overall frame strength.

[0031] As shown in Figure 2 and Figure 4 , the right side of the right beam plate 20 is provided with a battery mounting right side plate 19 and a right side bottom plate 15 welded and connected on the upper side wall, and the battery mounting right side plate 19 and the right side bottom plate 15 are welded and connected through the gas and electricity separation plate 18 to form a battery tank body structure 30. The formed tank space can install the battery 21 on the side of the frame, which is convenient for disassembly and maintenance of the battery, saves the installation space on the inner side of the frame, and enhances the overall frame structure.

[0032] Combined with Figure 5 and Figure 6The embodiment is characterized in that the fuel tank structure 31, the urea tank structure 27, the hydraulic oil tank structure 28, the gas storage tank structure 29 and the battery tank structure 30 are directly welded and connected on the side of the frame to form an integrated tank structure. Compared with the conventional structure in which these components are installed on or outside the frame as separate units, the embodiment has the advantages of saving space and neat layout, effectively utilizes the originally difficult-to-use or idle space of the side beam of the frame, releases the space inside the frame, is more conducive to the overall arrangement of the frame, significantly improves the rigidity and strength of the frame in the lateral direction by welding and connecting the tank structure on the side, and effectively shares the load from the chassis and the upper equipment as the tank structure is part of the frame load-bearing structure. Compared with the conventional structure which needs independent tank body, mounting bracket and fastener, the tank structure design eliminates the additional bracket and connecting member, directly uses the frame as the connecting structure, reduces the weight of the vehicle, improves the weight distribution and stability, and helps to reduce the center of gravity of the vehicle by welding and connecting the tank structures on the side of the frame. By flexibly arranging the positions and weights of the left and right tank structures, the vehicle transverse weight balance is optimized, and the stability of the vehicle is improved. The tank frame structure optimizes the cross-section design and strengthens the key stress point positions, significantly improves the carrying capacity, torsional stiffness and overall stability of the frame, has the advantages of reasonable structure, safety and reliability, easy manufacturing and maintenance, and is suitable for various engineering vehicles. It is a vehicle chassis structure design scheme with innovation and practical value.

[0033] The above description is only the preferred embodiment of the present application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the technical principles of the present application. These improvements and modifications should also be considered as within the scope of the present application.

Claims

1. An integrated box frame structure for an engineering machine, characterized in that, The utility model relates to a kind of integrated box frame structure of engineering machinery, including: Left beam plate and right beam plate, symmetrically arranged on the two sides of box frame; Left side bottom plate is welded on the left beam plate, fuel tank left side plate and urea tank left side plate are welded on the left side bottom plate, left side oil tank upper plate is welded on the upper side of the fuel tank left side plate and urea tank left side plate, oil tank partition plate is welded between the left side bottom plate and the left side oil tank upper plate; Right side bottom plate is welded on the right beam plate, hydraulic oil tank right side plate, gas storage tank right side plate and battery installation right side plate are welded on the right side of the right side bottom plate, hydraulic oil tank upper plate is welded on the upper side of the hydraulic oil tank right side plate and gas storage tank right side plate, gas-electricity partition plate and liquid-gas partition plate are welded between the hydraulic oil tank upper plate and the right side bottom plate; The left beam plate, left side bottom plate, fuel tank left side plate, left side oil tank upper plate and oil tank partition plate are connected to form fuel tank body structure, and the left beam plate, left side bottom plate, urea tank left side plate, left side oil tank upper plate and the oil tank partition plate are connected to form urea tank body structure; The right beam plate, right side bottom plate, hydraulic oil tank right side plate, hydraulic oil tank upper plate and liquid-gas partition plate are connected to form hydraulic oil tank structure, and the right beam plate, right side bottom plate, gas storage tank right side plate, hydraulic oil tank upper plate, liquid-gas partition plate and gas-electricity partition plate are connected to form gas storage tank body structure, and the right beam plate, gas-electricity partition plate, battery installation right side plate and right side bottom plate are connected to form battery tank body structure.

2. The construction machine integrated box-type frame structure according to claim 1, characterized by, The bottom edge of the oil tank partition plate is welded along the top wall of the left side bottom plate, and the side edge of the oil tank partition plate is welded along the side wall of the fuel tank left side plate.

3. The construction machine integrated box-type frame structure according to claim 1, characterized by, The left side plate formed by the fuel tank left side plate and urea tank left side plate is symmetric with the left beam plate.

4. The construction machine integrated box-type frame structure according to claim 1, characterized by, The bottom wall of the left side bottom plate is provided with urea plug.

5. The construction machine integrated box-type frame structure according to Claim 1, characterized by, The top wall of the left side oil tank upper plate is welded with solution interface mounting seat, urea filling port mounting seat, oil filling pipe mounting seat, liquid level meter mounting seat and oil suction flange seat.

6. The construction machine integrated box-type frame structure according to Claim 1, characterized by, The top wall of the hydraulic oil tank upper plate is welded with oil filling steel pipe, oil return pipe flange and oil pipe flange.

7. The construction machine integrated box-type frame structure according to Claim 1, characterized by, The right side plate formed by the hydraulic oil tank right side plate, gas storage tank right side plate and battery installation right side plate is symmetric with the right beam plate.

8. The construction machine integrated box-type frame structure according to Claim 1, characterized by, The outer wall of the hydraulic oil tank right side plate is welded with hydraulic oil tank oil outlet flange seat.

9. The construction machine integrated box-type frame structure according to Claim 1, characterized by, The top edge of the liquid-gas partition plate and the gas-electricity partition plate is welded along the lower side wall of the hydraulic oil tank upper plate, and the bottom edge is welded along the upper side wall of the right side bottom plate.

10. A working machine, characterized in that The utility model relates to a kind of integrated box frame structure of engineering machinery, including the engineering machinery integrated box frame structure of any one of claims 1-9.

Images