Pump chamber module, rotary platform assembly comprising pump chamber module and operation machine comprising pump chamber module

Abstract

The utility model relates to a pump chamber module suitable for at least partially containing a hydraulic pump of an operation machine, a rotary platform assembly comprising the pump chamber module and the operation machine. The working machine comprises a rotary platform. The pump chamber module comprises a pump chamber support, a tail gas aftertreatment device and an aftertreatment support used for installing the tail gas aftertreatment device. The pump chamber bracket is constructed to be suitable for being mounted to the center frame at a second side, opposite to the first side, of the center frame; wherein the post-processing bracket is arranged on the pump chamber bracket so as to be mounted on the center frame through the pump chamber bracket. According to the pump chamber module, the post-processing support is integrated on the pump chamber support, the pump chamber module which is modularly designed and integrated with the tail gas post-processing device can be integrally disassembled and assembled on the rotary platform, installation points of a right skirt frame and the post-processing support in the prior art are omitted, and only the installation points for the pump chamber support are arranged; the weight of the whole vehicle and the assembly procedures are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of components for engineering machinery, and in particular to a pump chamber module suitable for at least partially accommodating a hydraulic pump for a working machine, a rotary platform assembly including the pump chamber module, and a working machine including the rotary platform assembly. Background Technology

[0002] For rotary work machines (such as excavators and mobile cranes), the slewing platform is a crucial load-bearing component. It typically includes a center frame and left and right skirts connected to the center frame. The right skirt primarily supports and mounts various onboard equipment such as fuel tanks, hydraulic tanks, storage compartments, engine exhaust aftertreatment (CEM) systems, and pump rooms. Existing slewing platform assemblies with right skirt structures are large, complex, and heavy.

[0003] Furthermore, in existing technologies, the pump chamber and exhaust aftertreatment device are mounted on the right skirt of the rotating platform via brackets, and the pump chamber side door and fuel filter device are also mounted on the right skirt via brackets, resulting in a large number of parts and complex installation. In addition, the pump chamber has redundant space, the door brackets occupy a large amount of space, and the structure is complex and costly. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the above-mentioned problems and / or other problems existing in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a pump chamber module suitable for at least partially accommodating a hydraulic pump of a working machine is provided. The working machine includes a slewing platform with a central frame. The operator's cab of the working machine is located on a first side of the central frame. The pump chamber module includes a pump chamber bracket, an exhaust aftertreatment device, and an aftertreatment bracket for mounting the exhaust aftertreatment device. The pump chamber bracket is configured to be mounted to the central frame on a second side of the central frame opposite to the first side; wherein the aftertreatment bracket is disposed on the pump chamber bracket for mounting to the central frame via the pump chamber bracket.

[0006] The pump chamber module here refers to the entire integrated solid module, which includes not only the pump chamber support but also the various components integrated on and within the pump chamber support. In this design, the aftertreatment bracket of the engine exhaust gas treatment device is mounted on the pump chamber support and then installed onto the center frame of the rotary platform via the pump chamber support. In other words, by integrating the aftertreatment bracket into the pump chamber support, the mounting point for the aftertreatment bracket is eliminated, requiring only the mounting point for the pump chamber module. This reduces the number of required supports and components, allowing the exhaust gas aftertreatment device and pump chamber to be directly installed onto the center frame even when the right skirt of the rotary platform is eliminated. This optimizes the pump chamber structure, effectively reduces the number of components, and facilitates structural optimization of the rotary platform. Furthermore, the reduction in positioning and mounting points lowers the machining accuracy requirements of the rotary platform. Moreover, the modular design of the pump chamber module, which integrates the exhaust gas aftertreatment device, allows for complete disassembly and assembly, facilitating on-site assembly, maintenance, and replacement. Additionally, installing the exhaust gas aftertreatment device in the space not used by the hydraulic pump improves the space utilization efficiency of the pump chamber module.

[0007] According to one embodiment of the present invention, the pump chamber support is constructed as a frame and is connected to the central frame only at a connecting portion located at its bottom. This design allows the pump chamber module to be easily installed onto the central frame, improving assembly efficiency and facilitating disassembly for maintenance.

[0008] According to one embodiment of the present invention, the frame includes a first frame body and a second frame body disposed opposite to each other, and the post-processing bracket includes a mounting section, the two opposite ends of the mounting section being respectively connected to the first frame body and the second frame body.

[0009] In this design, the two main frames of the pump chamber frame are connected by the mounting section of the aftertreatment bracket. This not only fulfills the function of installing the exhaust gas treatment device, but also enhances the structural strength of the pump chamber frame through the aftertreatment bracket.

[0010] According to one embodiment of this utility model, both the first frame body and the second frame body include a first crossbeam, a second crossbeam, and a third crossbeam spaced apart. The two ends of the mounting section are respectively connected to the corresponding second crossbeam, and the connecting portion is disposed on the third crossbeam at the bottom of the second frame body. This multi-crossbeam configuration is advantageous for using simple materials, such as profiles like angle steel or bent sheet metal, and also facilitates assembly between components, such as bolting or welding. For example, the two ends of the mounting section can be connected to the second crossbeam using fasteners such as bolts.

[0011] According to one embodiment of the present invention, the first frame body and the second frame body further include a first longitudinal beam and a second longitudinal beam, respectively. Both the first and second longitudinal beams connect to the first crossbeam, the second crossbeam, and the third crossbeam. Each second longitudinal beam is further away from the rotating platform relative to the first longitudinal beam. The pump chamber module also includes a cover plate (also called a door panel or side door) disposed on two opposing second longitudinal beams. This structure uses two opposing longitudinal beams of the pump chamber frame to position the cover plate, eliminating the need for a separate support for the door panel, simplifying the door support design, reducing the door size, further lowering costs, and freeing up space for the installation of surrounding components such as pipelines.

[0012] According to one embodiment of the present invention, the pump chamber module further includes a fuel filter device for the working machinery and a fourth crossbeam for mounting the fuel filter device, the fourth crossbeam being disposed on the first frame body or the second frame body. This structure integrates the fuel filter device into the pump chamber module, eliminating the need for a separate bracket mounted on the rotary platform, reducing the number of parts and simplifying the assembly process.

[0013] According to one embodiment of the present invention, the mounting section divides the internal space of the frame into a first space and a second space located on both sides of the mounting section. The first space is adapted to accommodate the exhaust gas aftertreatment device of the working machinery, and the second space is adapted to partially accommodate the hydraulic pump.

[0014] According to one embodiment of the present invention, the post-processing bracket further includes a fireproof plate extending vertically from the mounting section toward the second space from the side near the rotary platform. The hydraulic pump extends into the second space through the fireproof plate from the rotary platform side. The fireproof plate is provided with avoidance features for avoiding the hydraulic pump.

[0015] According to another aspect of the present invention, a slewing platform assembly for a work machine is provided, the slewing platform assembly including a slewing platform, a bracket and a pump chamber module as described above, wherein the slewing platform includes a center frame, the operator's cab of the work machine is located on a first side of the center frame, the bracket is disposed on a second side of the center frame opposite to the first side, and a pump chamber bracket of the pump chamber module is connected to the bracket.

[0016] According to another aspect of the present invention, a working machine is provided, which includes a pump chamber module or a rotary platform assembly as described above. Attached Figure Description

[0017] The features and advantages of this utility model will become clear from the following detailed description provided with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and therefore should not be considered as limitations on this utility model, wherein:

[0018] Figure 1 This diagram shows a perspective view of the rotary platform and bracket of a rotary platform assembly according to an exemplary embodiment of the present invention.

[0019] Figure 2 A partial schematic diagram is shown of a pump chamber module according to an exemplary embodiment of the present invention, in a state of being mounted on a rotary platform.

[0020] Figure 3 Show Figure 2 The diagram shows a three-dimensional representation of the pump chamber module, which also includes a cover plate.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Rotary platform; 11. Central frame; 12. Side skirt frame; 2. Pump chamber support; 21. First space; 22. Second space; 23. First frame main body; 231. First crossbeam; 232. Second crossbeam; 233. Third crossbeam; 234. First longitudinal beam; 235. Second longitudinal beam; 236. Fixing hole; 24. Second frame main body; 241. First crossbeam; 242. Second crossbeam; 243. Third crossbeam; 244. First longitudinal beam; 245. Second longitudinal beam; 246. Connecting part; 247. Connecting hole; 248. Fourth crossbeam; 25. Connecting beam; 3. Post-processing support; 31. Installation section; 32. Fireproof board; 33. Avoidance feature; 4. Cover plate; 5. Bracket; 6. Hydraulic oil tank module. Detailed Implementation

[0023] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to enable those skilled in the art to more fully understand and implement the present invention. However, it will be apparent to those skilled in the art that implementations of the present invention may not include some of these specific details. Furthermore, it should be understood that the present invention is not limited to the specific embodiments described. Rather, the present invention can be conceived to be implemented with any combination of the features and elements described below, regardless of whether they relate to different embodiments. Therefore, the features, embodiments, and advantages described below are for illustrative purposes only and should not be construed as elements or limitations of the claims unless expressly set forth in the claims.

[0024] The terms "first" and "second" are used below to describe the elements of this application. These terms are used only to distinguish the individual elements and not to limit the nature, order, or number of these elements. The terms "comprising" and "having" are used to indicate an open-ended inclusion and mean that there may be additional elements / components besides those listed.

[0025] In this application, terms describing orientation / direction, such as "lateral," "longitudinal," "up," "down," "left," "right," "top," "bottom," "front," and "rear," are used relative to the operating machinery normally parked or working on a horizontal plane, or to the corresponding airborne equipment mounted on that operating machinery. For example, Figure 1 The X-axis arrow shown indicates the normal forward and backward direction of the operating machinery. The X-axis is also called the "longitudinal" direction of the operating machinery. Figure 1 The right-hand arrow in the Y direction indicates the "right side" of the operating machinery. Figure 1 The left arrow in the Y direction indicates the "left side" of the operating machinery. Figure 1 The upward arrow in the Z direction indicates the "upper side" of the operating machinery. Figure 1 The downward arrow in the Z direction indicates the "bottom" of the operating machinery.

[0026] Rotary work machines, such as excavators, typically consist of a traveling mechanism (e.g., tracks or wheels), a slewing platform connected to the traveling mechanism, and working devices (e.g., boom, stick, and bucket) connected to the slewing platform. Various compartments or equipment (e.g., cab, engine, fuel tank, hydraulic oil tank, pump room, etc.) are mounted on the slewing platform to enable the machine to move and / or work, thus forming the slewing platform assembly. The slewing platform assembly is then mounted on the traveling mechanism and can rotate relative to it.

[0027] Figure 1 The diagram schematically illustrates relevant partial structures of a rotary platform assembly of a working machine according to one embodiment of the present invention. For example... Figure 1 As shown, the slewing platform assembly according to this embodiment may include a slewing platform 1. The slewing platform 1 includes a center frame 11 extending along the travel direction (X direction) of the working machinery. In this embodiment, the slewing platform 1 may further include a first side connected to the center frame 11. Figure 1 The side skirt frame 12 (shown on the left) is the left skirt frame. This side skirt frame 12 can be connected to the center frame 12 as a single unit for mounting, for example, a driver's cab. The center frame 11 is as follows... Figure 1 As shown, a bracket 5 is provided on its right side for installation. Figure 2 , Figure 3 The pump chamber module is shown. Other mounting structures can also be installed on the right side of the center frame 11 to install other required modules or components.

[0028] Figure 2 Schematically shows an embodiment of a pump chamber module mounted on the above-mentioned slewing platform 1. As Figure 2 shown, the pump chamber module according to this embodiment may include a pump chamber bracket 2, an exhaust gas aftertreatment device (not shown in the figure), and a post-treatment bracket 3 for mounting the exhaust gas aftertreatment device. The pump chamber bracket 2 is configured to be adapted to be connected to a bracket 5 on the second side ( Figure 1 and Figure 2 the right side shown) of the center frame 11. Moreover, as Figure 2 shown, the slewing platform assembly may further include a hydraulic oil tank module 6 provided on one side of the pump chamber bracket 2. The pump chamber bracket 2 may also be connected to the hydraulic oil tank module 6 to enhance the installation stability of the pump chamber module. The post-treatment bracket 3 is provided on the pump chamber bracket 2 and is indirectly mounted on the center frame 11 via the pump chamber bracket 2.

[0029] Continuing to refer to Figure 2 and 3 , the pump chamber bracket 2 is configured as a frame and may include a first frame body 23 and a second frame body 24 which are oppositely arranged and have substantially the same structure. One end of the second frame body 24 close to the center frame 11 is fixed to the bracket 5 to directly fix the pump chamber bracket 5 to the center frame 11. The post-treatment bracket 3 may include a mounting section 31 and a fireproof board 32. The mounting section 31 is generally arranged at an intermediate position between the first frame body 23 and the second frame body 24 in the height direction, whereby the internal space of the frame can be divided into a first space 21 located above the mounting section 31 and a second space 22 located below the mounting section 32. The fireproof board 32 extends vertically from the mounting section 31 toward the second space 22 on the side close to the center frame 11 of the slewing platform 1. The mounting section 3 may be made of a relatively thick metal plate to provide sufficient support strength, while the fireproof board 32 may be made of a relatively thin metal plate. A hydraulic pump (not shown in the figure) passes through the fireproof board 32 and extends into the second space 22. It can be understood that the fireproof board 32 may also be provided with an avoidance feature 33 for avoiding the hydraulic pump, such as Figure 3 the avoidance hole shown, whereby the hydraulic pump can pass through the fireproof board 32 and extend into the second space.

[0030] Specifically, referring to <, Figure 3 shown, the first frame body 23 may include a first cross beam 231, a second cross beam 232, and a third cross beam 233 which are arranged at intervals, and may include a first longitudinal beam 234 and a second longitudinal beam 235 respectively connecting the three cross beams. Thus, the first frame body 23 forms a structure substantially in the shape of a Chinese character 'Ri'. These beams of the first frame body 23 may be made of multiple angle steels or sheet metal bent plates, for example, and an integral body may be formed between adjacent two beams in the form of bolts or welding, which is beneficial for assembly.

[0031] Similarly, the second frame body 24 may include a first cross beam 241, a second cross beam 242, and a third cross beam 243 that are spaced apart, and may include a first longitudinal beam 244 and a second longitudinal beam 245 that respectively connect the three cross beams. Thus, the second frame body 24 also forms a structure that is roughly in the shape of the Chinese character 'Ri'. Different from the first frame body 23, a connecting portion 246 is provided on one side of the third cross beam 243 of the second frame body 24 close to the center frame 11. For example, a connecting hole 247 is provided in the connecting portion 246. Thus, when the connecting portion 246 and the bracket 5 are stacked, the second frame body 24 of the pump chamber bracket 3 can be fixed to the center frame 11 through a fastener such as a bolt, thereby connecting the pump chamber module to the center frame 11, as Figure 2 and Figure 3 shown. Moreover, fixing holes 236 are provided on the third cross beam 233 of the first frame body 23, so that the pump chamber bracket 3 can be fixed to the hydraulic oil tank module 6 by bolts passing through these fixing holes 236.

[0032] In the above embodiment, the second cross beam 232 of the first frame body 23 and the second cross beam 242 of the second frame body 24 are at the same height, so that the two end portions of the mounting section 31 in the longitudinal direction (X direction) are respectively connected to the second cross beam 232 and the second cross beam 242.

[0033] Combined with Figure 2 and Figure 3 shown, the pump chamber module may further include a cover plate 4. The second longitudinal beam 235 of the first frame body 23 is farther from the slewing platform 1 than the first longitudinal beam 234 (it can be understood as being closer to the outside), and the second longitudinal beam 245 of the second frame body 24 is farther from the slewing platform 1 than the first longitudinal beam 244 and is opposite to the second longitudinal beam 235 of the first frame body 23. The cover plate 4 is provided on the opposite second longitudinal beams 235 and 245.

[0034] Preferably, referring to Figure 3 shown, the pump chamber module according to this embodiment may further include a fourth cross beam 248 to mount the fuel filtering device of the working machine. The fourth cross beam 248 can be connected to the first frame body 23 or the second frame body 24 according to actual needs. For example, Figure 3 shown, the two end portions of the fourth cross beam 248 are respectively connected to the first longitudinal beam 244 and the second longitudinal beam 245 of the second frame body 并位于第二横梁242和第三横梁243之间。

[0035] This utility model also provides a slewing platform assembly. The slewing platform assembly includes a slewing platform 1, which includes a center frame 11. The operator's cab of the working machine is located on the first side (left side) of the center frame 11. Instead of a right skirt frame, a pump chamber module is directly installed on the second side (right side) of the center frame 11 via a bracket 5. This is achieved by connecting the pump chamber bracket 2 of the pump chamber module to the bracket 5 as described above, and preferably connecting it to an adjacent hydraulic oil tank module 6 on the front side of the pump chamber bracket to enhance the connection.

[0036] This utility model also provides a working machine that includes the above-mentioned pump chamber module or rotary platform assembly.

[0037] Industrial applicability

[0038] The pump chamber module according to this utility model is applicable to various operating machinery, including but not limited to excavators. Multiple integrated modules can be installed on this slewing platform to form a slewing platform assembly. These integrated modules can be formed by various free combinations of one or more devices or components, including but not limited to fuel tanks, storage tanks, hydraulic oil tanks, and pump chambers.

[0039] According to this utility model, the pump chamber module integrates the aftertreatment bracket 3 into the pump chamber bracket 2. The modular design of the pump chamber module, which integrates the exhaust gas aftertreatment device, allows for overall assembly and disassembly onto the central frame 11 of the rotary platform 1. The rotary platform assembly eliminates the existing right skirt frame, instead directly mounting each module (or required components or equipment) onto the right side of the central frame 11. This effectively reduces the material requirements of the rotary platform, saves costs, reduces weight, saves processing time, and lowers processing accuracy requirements. Furthermore, the elimination of the mounting point for the aftertreatment bracket 3, with only mounting points for the pump chamber bracket 2, effectively reduces the number of components and assembly steps, lowers the overall weight of the rotary platform assembly, and reduces costs. Constructing the pump chamber bracket 2 as a frame and connecting the first frame body 23 and the second frame body 24 via the mounting section 31 enhances the installation strength of the pump chamber bracket 2. Installing the exhaust gas aftertreatment device into the unused first space 21 of the hydraulic pump reduces redundant space in the pump chamber module. Cover plate 4 is mounted on two opposing second longitudinal beams 235 and 245, which simplifies the door support design, reduces the side door size, and further lowers costs. Pump chamber support 2 can be constructed from profiles such as angle steel or sheet metal bent plates, using simple materials and allowing for more bolted connections, effectively saving assembly time. Moreover, it can be assembled on-site using various profiles, further saving assembly time.

[0040] Furthermore, the pump chamber module adopts a basically symmetrical structure, simplifying component manufacturing and maximizing material utilization. The post-treatment bracket, while ensuring strength, features a fully optimized structure. The mounting section supports the post-treatment device, and the absence of end plates found in existing technologies effectively frees up space, facilitating the layout of surrounding components and pipelines, and significantly reducing bracket material and manufacturing costs. The integrated pump chamber module offers convenient component assembly and overall installation, effectively saving assembly time, and can be disassembled as a whole for convenient on-site maintenance and replacement.

[0041] Various modifications and variations can be made to the embodiments disclosed above without departing from the scope or spirit of this invention. Other embodiments of this invention will be apparent to those skilled in the art based on the practice of this invention disclosed in this specification. This specification and the examples disclosed herein should be considered illustrative only, and the true scope of this invention is defined by the appended claims and their equivalents.

Claims

1. A pump chamber module adapted to at least partially house a hydraulic pump of a working machine, characterized in that, The working machinery includes a slewing platform (1), the slewing platform includes a center frame (11), the operator's cab of the working machinery is located on the first side of the center frame (11), and the pump chamber module includes: Pump chamber support (2), the pump chamber support (2) being configured to be mounted to the central frame (11) at a second side opposite to the first side; and An exhaust gas aftertreatment device and an aftertreatment bracket (3) for mounting the exhaust gas aftertreatment device, wherein the aftertreatment bracket (3) is disposed on the pump chamber bracket (2) for mounting to the center frame (11) via the pump chamber bracket (2).

2. The pump chamber module according to claim 1, characterized in that, The pump chamber support (2) is constructed as a frame and is connected to the central frame (11) only at a connection (246) located at its bottom.

3. The pump chamber module according to claim 2, characterized in that, The frame includes a first frame body (23) and a second frame body (24) arranged opposite to each other. The post-processing bracket (3) includes a mounting section (31), and the two opposite ends of the mounting section (31) are respectively connected to the first frame body (23) and the second frame body (24).

4. The pump chamber module according to claim 3, characterized in that, Both the first frame body (23) and the second frame body (24) include a first crossbeam (231, 241), a second crossbeam (232, 242) and a third crossbeam (233, 243) arranged at intervals. The two ends of the mounting section (31) are respectively connected to the corresponding second crossbeams. The connecting part (246) is arranged on the third crossbeam (243) at the bottom of the second frame body (24).

5. The pump chamber module according to claim 4, characterized in that, The first frame body (23) and the second frame body (24) also include a first longitudinal beam (234, 244) and a second longitudinal beam (235, 245), respectively. The first longitudinal beam (234, 244) and the second longitudinal beam (235, 245) are connected to the first crossbeam, the second crossbeam and the third crossbeam. Each second longitudinal beam (235, 245) is further away from the rotary platform (1) relative to the first longitudinal beam (234, 244). The pump chamber module also includes a cover plate (4) disposed on the two opposing second longitudinal beams (235, 245).

6. The pump chamber module according to claim 5, characterized in that, The pump chamber module also includes a fuel filter device for the working machinery and a fourth crossbeam (248) for mounting the fuel filter device, the fourth crossbeam (248) being mounted on the first frame body (23) or the second frame body (24).

7. The pump chamber module according to claim 3, characterized in that, The mounting section (31) divides the internal space of the frame into a first space (21) and a second space (22) located on both sides of the mounting section (31). The first space is adapted to accommodate the exhaust gas aftertreatment device of the working machinery, and the second space is adapted to partially accommodate the hydraulic pump.

8. The pump chamber module according to claim 7, characterized in that, The post-processing bracket (3) also includes a fireproof plate (32) extending vertically from the mounting section (31) toward the second space (22) on the side near the rotary platform. The hydraulic pump extends into the second space (22) through the fireproof plate (32) from the side of the rotary platform (1). The fireproof plate (32) is provided with a avoidance feature (33) for avoiding the hydraulic pump.

9. A rotary platform assembly for working machinery, characterized in that, The slewing platform assembly includes a slewing platform (1), a bracket (5), and a pump chamber module according to any one of claims 1 to 8, wherein the slewing platform includes a center frame (11), the cab of the working machine is located on a first side of the center frame (11), the bracket is disposed on a second side of the center frame (11) opposite to the first side, and the pump chamber bracket (2) of the pump chamber module is connected to the bracket (5).

10. The slewing platform assembly according to claim 9, characterized in that, The rotary platform assembly also includes a hydraulic oil tank module (6) arranged adjacent to the pump chamber module, and the pump chamber bracket (2) of the pump chamber module is also connected to the hydraulic oil tank module (6).

11. A type of operating machinery, characterized in that, It includes the pump chamber module according to any one of claims 1 to 8 or the rotary platform assembly according to claim 9 or 10.

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