Rear frame for working machine and working machine

Abstract

The utility model relates to the field of operation machinery, and discloses a rear frame for operation machinery and the operation machinery, the rear frame comprises a frame body, a supporting seat assembly and a damping structure, the frame body comprises a first functional area, a second functional area and a third functional area which are sequentially arranged from front to back; the supporting seat assembly at least comprises a cab supporting seat, a drive axle supporting seat and a battery supporting seat, the cab supporting seat is arranged in the first functional area, the drive axle supporting seat is arranged in the second functional area, and the battery supporting seat is arranged in the third functional area; the damping structure comprises a plurality of damping pad assemblies which are arranged on the cab support, the drive axle support and the battery support respectively. According to the rear frame and the operation machine, the stability of the rear frame can be improved, the convenience of disassembly and assembly of each modular component is improved, the generation of component resonance is reduced, and the operation noise of the operation machine can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of working machinery, and in particular relates to a rear frame for a working machinery and a working machinery. Background Art

[0002] The rear frame is a key load-bearing component of loaders and other work machines, primarily supporting large components such as the cab, gearbox, and hydraulic motor. In existing work machines, the functional divisions of the rear frame are relatively chaotic, with no standardized installation locations for the various components. This creates interference between components, making installation and maintenance difficult. Furthermore, during operation, the various components and the rear frame are prone to resonating at the same frequency, resulting in loud noise that affects both personnel and the environment. Utility Model Content

[0003] In response to at least one of the above-mentioned defects or shortcomings of the prior art, the present application provides a rear frame for a working machine and a working machine, which can improve the stability of the rear frame, facilitate the disassembly and assembly of various modular components, reduce component resonance, and reduce operating noise.

[0004] In order to achieve the above objectives, the present application provides, on one hand, a rear frame for a working machine, comprising:

[0005] The frame body includes a first functional area, a second functional area, and a third functional area arranged in sequence front to back;

[0006] A support base assembly, comprising at least a cab support, a drive axle support, and a battery support, wherein the cab support is arranged in the first functional area, the drive axle support is arranged in the second functional area, and the battery support is arranged in the third functional area; and

[0007] The shock-absorbing structure includes a plurality of shock-absorbing pad assemblies, which are respectively arranged on the cab support, the drive axle support and the battery support.

[0008] In some embodiments, the support seat assembly further includes a gearbox support disposed in the first functional area, and the shock-absorbing pad assembly is further disposed on the gearbox support.

[0009] In some embodiments, the support seat assembly further includes a motor support and a power distribution control device support provided in the second functional area, and the shock-absorbing pad assembly is further provided on the motor support and the power distribution control device support.

[0010] In some embodiments, the frame body includes a first left side panel, a hinge seat and a first right side panel, and the first functional area and the second functional area are formed by sequentially splicing and enclosing the first left side panel, the hinge seat and the first right side panel along the circumferential direction.

[0011] In some embodiments, a tank mounting structure for mounting a hydraulic oil tank is provided on the side wall of the first left panel, and a box mounting structure for mounting a box assembly is provided on the side wall of the first right panel.

[0012] In some embodiments, the frame body includes a second left side plate, a counterweight mounting plate and a second right side plate, and the third functional area is formed by sequentially splicing and enclosing the second left side plate, the counterweight mounting plate and the second right side plate along the circumferential direction.

[0013] In some embodiments, the front end of the second left side plate is welded to the rear end of the first left side plate, and the front end of the second right side plate is welded to the rear end of the first right side plate.

[0014] In some embodiments, a side wall of the counterweight mounting plate is provided with a counterweight mounting structure for mounting a counterweight assembly and a radiator assembly.

[0015] In some embodiments, the shock-absorbing pad assembly includes a first shock absorber, a second shock absorber, a first washer, a second washer and a nut stacked up and down in sequence, and the shock-absorbing pad assembly also includes a bolt that can pass through the first shock absorber, the second shock absorber, the first washer, the second washer and the nut in sequence.

[0016] A second aspect of the present application provides a working machine, which includes the above-mentioned rear frame for the working machine.

[0017] Through the above-mentioned technical solution, the present application can orderly divide the vehicle frame into three functional zones that do not interfere with each other. Taking the production of a loader as an example, during vehicle assembly, the cab, drive axle, and power battery can be installed separately in the three functional zones of the vehicle frame, preventing interference between the components. This facilitates disassembly, assembly, and maintenance of the components, while also avoiding stress concentration in the frame, thereby improving frame stability and reliability. Crucially, by providing shock-absorbing pad assemblies on each support, the impact between the components and the frame can be effectively buffered, reducing the generation of resonance and significantly reducing operating noise.

[0018] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive work. In the drawings:

[0020] Figure 1 This is a schematic diagram of a rear frame for a working machine in a specific embodiment of the present application;

[0021] Figure 2 for Figure 1 Schematic diagram of the shock absorber pad assembly of the rear frame.

[0022] Description of Reference Numerals

[0023] 1 Cab support 2 Articulated seat

[0024] 3 Transmission support 4 First left side plate

[0025] 5 Motor support 6 Drive axle support

[0026] 7 Motor support 8 Second left side panel

[0027] 9 Counterweight mounting plate 10 Second right side plate

[0028] 11 Power distribution control device support 12 First right side panel

[0029] 13 shock-absorbing pad assembly 131 first shock absorber

[0030] 132 Second shock absorber 133 First washer

[0031] 134 Second washer 135 Nut

[0032] 136 bolts DETAILED DESCRIPTION

[0033] The following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not intended to limit the present application.

[0034] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0035] like Figure 1 and Figure 2As shown, the first exemplary embodiment of the present application provides a rear frame for a working machine, which includes a frame body, a support seat assembly and a shock-absorbing structure. The frame body serves as the main structure of the rear frame and includes a first functional area, a second functional area and a third functional area arranged in sequence front and back. The support seat assembly includes at least a cab support 1, a drive axle support 6 and a battery support 7, wherein the cab support 1 is arranged in the first functional area for supporting the cab of the working machine, the drive axle support 6 is arranged in the second functional area for supporting the rear drive axle of the working machine, and the battery support 7 is arranged in the third functional area for supporting the power battery of the working machine. The shock-absorbing structure includes a plurality of shock-absorbing pad assemblies 13, which are respectively arranged on the cab support 1, the drive axle support 6 and the battery support 7, for cushioning the above-mentioned cab, rear drive axle and power battery supported on each support.

[0036] As can be seen, the rear frame of this exemplary embodiment can orderly divide the vehicle frame into three functional zones that do not interfere with each other. For example, during vehicle assembly, the cab, drive axle, and power battery can be installed separately in the three functional zones of the vehicle frame, eliminating interference between the components. This facilitates assembly, disassembly, and maintenance, while also preventing stress concentration within the vehicle frame, thereby improving the overall stability and reliability of the frame. Crucially, the provision of shock-absorbing pad assemblies 13 on each support effectively cushions the impact between the components and the frame, reducing resonance and significantly reducing operating noise.

[0037] It should be noted that, in this embodiment, the front-rear direction and the left-right direction all refer to the front-rear direction and the left-right direction of the working machine (such as a loader).

[0038] like Figure 1 As shown, the frame body of this embodiment is a frame structure as a whole, which has better tensile and torsional structural performance and stronger impact load resistance. In this embodiment, there may be four cab supports 1, which are distributed around the first functional area, thereby forming a four-corner positioning, making the installation of the cab more stable and firm. The shock-absorbing pad assembly 13 can filter the vibration transmitted from the rear frame to the cab, thereby effectively improving the driving experience. There may also be four drive axle supports 6, which are distributed around the second functional area, thereby forming a four-corner positioning, making the rear drive axle more stable. The battery support 7 can be formed as a battery support plate, which extends in the front and rear directions and can support the installation of at least eight battery frames with high-performance and large-capacity lithium batteries. It has a strong load-bearing capacity and is used in conjunction with the shock-absorbing pad assembly 13 to effectively protect the battery from the vibration impact of the rear frame and improve vehicle safety.

[0039] In an optional or preferred embodiment, as Figure 1As shown, the support base assembly also includes a transmission support 3 positioned in the first functional area, with a shock-absorbing pad assembly 13 also mounted on this support 3. As the name suggests, this support 3 is used to mount and secure the drive transmission assembly. In this embodiment, four transmission supports 3 are provided, distributed around the first functional area. These supports 3 are positioned below the cab support 1, preventing interference with each other. The installation of the shock-absorbing pad assembly 13 on the transmission support 3 effectively reduces vibration and impact between the drive transmission assembly and the transmission support 3, maintaining the stability and reliability of the gears within the transmission during high-speed rotation while also reducing operating noise.

[0040] In an optional or preferred embodiment, as Figure 1 As shown, the support base assembly also includes a motor support 5 and a power distribution control device support 11, located in the second functional area. Shock-absorbing pad assemblies 13 are also installed on these motor support 5 and power distribution control device support 11. The motor support 5 is used to mount the hydraulic motor. In this embodiment, two motor supports 5 are provided, one on each side of the second functional area. Since the hydraulic motor is equipped with a high-speed rotating plunger pump, installing the shock-absorbing pad assemblies 13 on the motor support 5 effectively reduces the vibration and noise generated by the rotation of the motor and plunger pump. The power distribution control device support 11 is used to mount the intelligent controller and high-voltage distribution box. In this embodiment, two power distribution control device supports 11 are provided, also located on each side of the second functional area, but the power distribution control device support 11 is located behind the motor support 5 to prevent interference. Since both the intelligent controller and the high-voltage distribution box contain a variety of high- and low-voltage electrical components, installing the shock-absorbing pad assemblies 13 on the power distribution control device support 11 effectively reduces the impact of rear frame vibration on these components, thereby improving equipment reliability.

[0041] In an optional or preferred embodiment, as Figure 1 As shown, the frame body includes a first left side panel 4, an articulated seat 2 and a first right side panel 12. The first functional area and the second functional area are formed by sequentially splicing and enclosing the first left side panel 4, the articulated seat 2 and the first right side panel 12 along the circumferential direction. In other words, the first left side panel 4, the articulated seat 2 and the first right side panel 12 are spliced ​​together to form a first frame structure, and the first frame structure can be split into the above-mentioned first functional area and the second functional area. Figure 1As shown, the four cab supports 1 described above can be symmetrically distributed on the first left side panel 4, the hinge base 2, and the first right side panel 12; the four gearbox supports 3 can be symmetrically distributed on the first left side panel 4 and the first right side panel 12; the two motor supports 5 can be symmetrically distributed on the first left side panel 4 and the first right side panel 12; and the four drive axle supports 6 can be symmetrically distributed on the first left side panel 4 and the first right side panel 12. Overall, the cab support 1, gearbox support 3, motor support 5, and drive axle support 6 are spaced apart in the front-to-back direction and can be staggered in height, so that the installation of the corresponding components will not cause interference, thereby improving the convenience of assembly and disassembly.

[0042] Furthermore, a tank mounting structure for mounting a hydraulic oil tank is provided on the side wall of the first left side plate 4. The tank mounting structure can be Figure 1 The fuel tank mounting hole shown penetrating the first left side panel 4 may also be a snap-fit ​​structure in other embodiments, and this application does not limit this. The side wall of the first right side panel 12 is provided with a box mounting structure for mounting the box assembly, which may be Figure 1 The box mounting protrusions and box mounting holes shown are not limited in this application. Thus, it can be seen that the first left side plate 4 and the first right side plate 12 of the present application can utilize the outer space of the rear frame to install and arrange the hydraulic oil tank and the box assembly, thereby improving the space utilization of the entire vehicle.

[0043] In an optional or preferred embodiment, as Figure 1 As shown, the frame body includes a second left side plate 8, a counterweight mounting plate 9, and a second right side plate 10. The third functional area is formed by the second left side plate 8, the counterweight mounting plate 9, and the second right side plate 10 being spliced ​​and enclosed in sequence along the circumferential direction. In other words, the second left side plate 8, the counterweight mounting plate 9, and the second right side plate 10 are spliced ​​together to form a second frame structure, which is docked with the first frame structure to form a frame body with an integrated body frame structure. The space enclosed by the second frame structure is defined as the third functional area. Figure 1 As shown, the two battery supports 7 are symmetrically distributed on the second left side plate 8 and the second right side plate 10, and each battery support 7 is extended along the corresponding side plate to avoid the weight of the power battery being concentrated at a certain point of the side plate, and to avoid deformation of the second left side plate 8 and the second right side plate 10.

[0044] In this embodiment, the second frame structure is connected to the first frame structure by welding, thereby forming an integrated frame structure with high structural strength. Specifically, the front end of the second left side panel 8 is welded to the rear end of the first left side panel 4, and the front end of the second right side panel 10 is welded to the rear end of the first right side panel 12.

[0045] Furthermore, in this embodiment, the side wall of the counterweight mounting plate 9 is provided with a counterweight mounting structure for mounting the counterweight assembly and the radiator assembly. Figure 1 As shown, the counterweight mounting structure can be a counterweight mounting hole set on the side wall of the counterweight mounting plate 9. The counterweight mounting hole is connected by a connecting piece, so that the counterweight assembly and the radiator assembly can be installed on the counterweight mounting plate 9. As a result, the weight concentrated on the counterweight mounting plate 9 can be transmitted to the second left plate 8 and the second right plate 10, thereby improving the stability of the counterweight assembly and the radiator assembly, especially maintaining the stability of the counterweight in a bumpy state.

[0046] In an optional or preferred embodiment, as Figure 2 As shown, the shock-absorbing pad assembly 13 includes a first shock absorber 131, a second shock absorber 132, a first washer 133, a second washer 134 and a nut 135 stacked in sequence, and the shock-absorbing pad assembly 13 also includes a bolt 136 that can sequentially connect the first shock absorber 131, the second shock absorber 132, the first washer 133, the second washer 134 and the nut 135. When installing the shock-absorbing pad assembly 13, taking installation on the cab support 1 as an example, the first shock absorber 131 can be placed on the top surface of the cab support 1, and the second shock absorber 132, first washer 133, second washer 134, and nut 135 can be placed on the bottom surface of the cab support 1, so that the first shock absorber 131 and the second shock absorber 132 jointly clamp the cab support 1. Then, bolts 136 are used to sequentially connect the first shock absorber 131, the cab support 1, the second shock absorber 132, the first washer 133, the second washer 134, and the nut 135, thereby completing the installation of the shock-absorbing pad assembly 13. Furthermore, when installing the cab on the cab support 1, bolts 136 can be first removed, and then the cab bracket portion can be aligned and placed on the first shock absorber 131. Then, bolts 136 can be sequentially connected through the cab bracket portion and the aforementioned components and elements, thereby completing the installation and fixation of the cab. It is understandable that the above-mentioned installation method is also applicable to other supports such as the above-mentioned drive axle support 6, battery support 7, gearbox support 3 and motor support 5, and will not be described one by one here.

[0047] The second exemplary embodiment of the present application provides a working machine, which includes the above-mentioned rear frame for a working machine. Obviously, the working machine of this exemplary embodiment has all the technical effects brought by the above-mentioned rear frame, so they will not be described in detail here.

[0048] In practical application, the rear frame of the present application can be applied to an electric-drive loader.

[0049] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0050] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0052] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A rear frame for a working machine, characterized in that: include: The frame body includes a first functional area, a second functional area, and a third functional area arranged in sequence front to back; A support seat assembly, comprising at least a cab support (1), a drive axle support (6) and a battery support (7), wherein the cab support (1) is arranged in the first functional area, the drive axle support (6) is arranged in the second functional area, and the battery support (7) is arranged in the third functional area; and The shock-absorbing structure comprises a plurality of shock-absorbing pad assemblies (13), wherein the plurality of shock-absorbing pad assemblies (13) are respectively arranged on the cab support (1), the drive axle support (6) and the battery support (7).

2. The rear frame for a working machine according to claim 1, wherein: The support seat assembly further comprises a gearbox support (3) arranged in the first functional area, and the shock-absorbing pad assembly (13) is also arranged on the gearbox support (3).

3. The rear frame for a working machine according to claim 1, wherein: The support seat assembly further comprises a motor support (5) and a power distribution control device support (11) arranged in the second functional area, and the shock-absorbing pad assembly (13) is also arranged on the motor support (5) and the power distribution control device support (11).

4. The rear frame for a working machine according to claim 1, wherein: The frame body comprises a first left side panel (4), an articulated seat (2) and a first right side panel (12); the first functional area and the second functional area are formed by sequentially splicing and enclosing the first left side panel (4), the articulated seat (2) and the first right side panel (12) along the circumferential direction.

5. The rear frame for a working machine according to claim 4, characterized in that: An oil tank mounting structure for mounting a hydraulic oil tank is provided on the side wall of the first left side plate (4), and a box body mounting structure for mounting a box body assembly is provided on the side wall of the first right side plate (12).

6. The rear frame for a working machine according to claim 4, characterized in that: The frame body comprises a second left side plate (8), a counterweight mounting plate (9) and a second right side plate (10); the third functional area is formed by sequentially splicing and enclosing the second left side plate (8), the counterweight mounting plate (9) and the second right side plate (10) along the circumferential direction.

7. The rear frame for a working machine according to claim 6, wherein: The front end of the second left side plate (8) is welded to the rear end of the first left side plate (4), and the front end of the second right side plate (10) is welded to the rear end of the first right side plate (12).

8. The rear frame for a working machine according to claim 6, wherein: The side wall of the counterweight mounting plate (9) is provided with a counterweight mounting structure for mounting the counterweight assembly and the radiator assembly.

9. The rear frame for a working machine according to any one of claims 1 to 8, characterized in that: The shock-absorbing pad assembly (13) comprises a first shock absorber (131), a second shock absorber (132), a first washer (133), a second washer (134) and a nut (135) which are stacked in sequence. The shock-absorbing pad assembly (13) further comprises a bolt (136) capable of sequentially connecting the first shock absorber (131), the second shock absorber (132), the first washer (133), the second washer (134) and the nut (135).

10. An operating machine, characterized in that: The working machine includes the rear frame for a working machine according to any one of claims 1 to 9.

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