Loader shell oil duct structure

Abstract

The utility model discloses an oil duct structure of a loader shell, which belongs to the technical field of loaders, and comprises a shell and an oil pump connected with the shell, a first oil hole is arranged on the shell, the first oil hole is connected with a long inclined oil duct, the long inclined oil duct is of a long inclined plate structure, and one end of the oil duct is communicated with an intermediate shaft bearing hole. According to the system, the structure of a large-size shell oil duct is clear and definite, multiple purposes of cooling, filtering and the like can be achieved while the requirement for work of the wet clutch is met, the machining technology is simplified, and the machining takt is shortened.

Description

Technical Field

[0001] This utility model relates to the field of loader technology, and specifically to an oil passage structure for a loader housing. Background Technology

[0002] Loaders are a type of construction machinery widely used in engineering construction, mining, and port terminals. During operation, the various components of a loader generate friction and wear. One of the main functions of the loader housing's oil passages is to deliver lubricating oil to critical parts such as the engine, transmission, and drive axle, reducing friction between components, minimizing wear, and extending the equipment's service life. In some loaders, the housing's oil passages also function as hydraulic transmission systems, providing power and control to the hydraulic system. Early loader housing oil passage designs were relatively simple, typically employing straight or branched oil circuit layouts. While this design could meet basic lubrication and cooling requirements, it had shortcomings in flow distribution and pressure control, easily leading to insufficient lubrication or overheating in some areas.

[0003] Application number JP2017113519 discloses a cooling oil passage structure for an engine installed in a cylinder head. This engine is cooled by cooling oil, which can reduce the engine's size and weight. The cylinder and cylinder head are sequentially coupled to a crankcase. The crankcase contains a cavity, with a cam chain chamber formed on one side of the cylinder cavity, a cylinder-side cooling oil passage formed in the cylinder, and a cylinder head-side cooling oil passage formed in the cylinder head. In the engine cooling oil passage structure, the cylinder-side cooling oil passages are located around the cylinder cavity. The cylinder includes an oil passage waste section, which is a section between the cylinder cavity and the chain chamber where there is no cylinder-side cooling oil passage. The cylinder-side cooling oil passages on both sides of the oil passage waste section communicate with the cylinder head-side cooling oil passages. This patented technology still has room for improvement.

[0004] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this application. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a loader housing oil passage structure. This system has a clear and well-defined oil passage structure for large-size housings, and can achieve multiple purposes such as cooling and filtration while meeting the requirements of wet clutch operation. Furthermore, the processing technology is simplified and the processing cycle is shortened.

[0006] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0007] A loader housing oil passage structure includes: a housing and an oil pump connected to the housing. The housing is provided with a first oil hole, which is connected to a long inclined oil passage. The long inclined oil passage is a long inclined plate structure, and one end of the oil passage is connected to an intermediate shaft bearing hole.

[0008] According to one embodiment of this utility model, the oil pump is connected to a pressure oil pipe and a cooling oil pipe, both of which are connected to the housing. A filter mounting point is provided at the center of the housing, and a filter is installed at the filter mounting point. A second oil hole is provided on one side of the first oil hole, and the first and second oil holes are located on opposite sides of the housing. A long inclined oil passage is located outside the housing. An intermediate shaft passes through the center of the intermediate shaft bearing hole. A process machining hole is provided outside the housing. The process machining hole is a hollow tube and is connected to the interior of the housing. The process machining hole includes a first sealing point and a second sealing point. Both the first and second sealing points are equipped with plugs, and the first and second sealing points are perpendicular to each other.

[0009] Typical housing oil passage structures are characterized by short distances and simplicity, primarily for cooling and lubrication. However, dual-clutch loader transmission housings are relatively large, and the oil passages need to meet multiple requirements such as cooling and hydraulic pressure application; simple oil passages cannot meet these requirements.

[0010] In this invention, the housing oil passage structure consists of two parts: a first oil hole pressure oil passage and a second oil hole cooling oil passage. Both the first oil hole pressure oil and the second oil hole cooling oil are powered by an oil pump. A valve body is installed inside the housing to distribute the oil flow. After distribution by the valve body, the first oil hole pressure oil passage ultimately leads to the intermediate shaft bearing hole and then enters the intermediate shaft. The second oil hole cooling oil passage connects the housings, responsible for cooling the housing, other housings, and internal components. An oil pump is installed on the side of the housing, connected to the housing via a pressure oil pipe and a cooling oil pipe, resulting in two directions: cooling oil and pressure oil. The pressure oil is first filtered to remove impurities and then distributed to the first oil hole via the valve body. The second oil hole is directly connected to the oil pump's cooling oil passage and then distributed to the oil hole on the left side of the housing via the valve body, subsequently being delivered to its corresponding mating housing.

[0011] The pressurized oil pumped in through the first oil hole passes through the outside of the housing and is transmitted to the intermediate shaft via a long, sloping oil passage. The machined holes are sealed to prevent leakage and ensure a tight seal, thus enabling the internal wet clutch to operate and function effectively. This structure provides a clear and defined oil passage structure for large-sized housings, fulfilling multiple functions and applications such as cooling and filtration while simultaneously supporting wet clutch operation. Furthermore, the manufacturing process is simplified, and the processing cycle is shortened. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the shell oil passage structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the side structure of the pressure oil passage of this utility model;

[0015] Figure 3 This is a schematic diagram of the pressure oil passage structure of this utility model.

[0016] Reference numerals: 10-oil pump; 100-housing; 101-pressure oil pipe; 102-cooling oil pipe; 201-first oil hole; 202-second oil hole; 30-filter mounting point; 301-intermediate shaft bearing hole; 302-first sealing point; 303-second sealing point. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Example 1:

[0020] See appendix Figure 1-3 As shown, a loader housing oil passage structure includes: a housing 100 and an oil pump 10 connected to the housing 100. The housing 100 is provided with a first oil hole 201, and the first oil hole 201 is connected to a long inclined oil passage. The long inclined oil passage is a long inclined plate structure, and one end of the oil passage is connected to an intermediate shaft bearing hole 301.

[0021] The oil pump 10 is connected to a pressure oil pipe 101 and a cooling oil pipe 102, both of which are connected to the housing 100. A filter mounting point 30 is located at the center of the housing 100, and a filter is installed on the filter mounting point 30. A second oil hole 202 is located on one side of the first oil hole 201, and the first oil hole 201 and the second oil hole 202 are located on both sides of the housing 100. A long inclined oil passage is located outside the housing 100. An intermediate shaft passes through the center of the intermediate shaft bearing hole 301. A process machining hole is located outside the housing 100. The process machining hole is a hollow tube and is connected to the interior of the housing 100. The process machining hole includes a first sealing point 302 and a second sealing point 303. Both the first sealing point 302 and the second sealing point 303 are equipped with plugs, and the first sealing point 302 and the second sealing point 303 are perpendicular to each other.

[0022] Typical housing oil passage structures are characterized by short distances and simplicity, primarily for cooling and lubrication. However, dual-clutch loader transmission housings are relatively large, and the oil passages need to meet multiple requirements such as cooling and hydraulic pressure application; simple oil passages cannot meet these requirements.

[0023] In this invention, the housing oil passage structure consists of two parts: a first oil hole 201 pressure oil passage and a second oil hole 202 cooling oil passage. Both the first oil hole 201 pressure oil and the second oil hole 202 cooling oil are powered by the oil pump 10. A valve body is provided inside the housing 100 to distribute the oil flow. After distribution by the valve body, the first oil hole 201 pressure oil passage ultimately leads to the intermediate shaft bearing hole 301 and then enters the intermediate shaft. The second oil hole 201 cooling oil passage connects the housings 100 and is responsible for cooling the housing 100, other housings, and internal components. An oil pump 10 is installed on the side of the housing 100. The oil pump 10 is connected to the housing 100 via a pressure oil pipe 101 and a cooling oil pipe 102. The oil pump 10 is divided into two directions: cooling oil and pressure oil. The pressure oil is first filtered by a filter to remove impurities, and then distributed to the first oil port 201 through a valve body. The second oil port 202 is directly connected to the cooling oil circuit of the oil pump 10, and then distributed to the oil port on the left side of the housing 100 through a valve body. Subsequently, it will be delivered to the corresponding housing that it is paired with.

[0024] The pressurized oil pumped in through the first oil hole 201 passes through the outside of the housing 100 and is transmitted to the intermediate shaft via a long, inclined oil passage. The machining holes are sealed to prevent leakage and ensure the housing remains sealed, thus enabling the internal wet clutch to operate and function effectively. This structure provides a clear and defined oil passage structure for large-sized housings, fulfilling multiple functions and applications such as cooling and filtration while meeting the requirements of wet clutch operation. Furthermore, the manufacturing process is simplified, and the processing cycle is shortened.

[0025] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the present utility model, and are not intended to limit the implementation methods of the present utility model in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present utility model, but these should still be regarded as the same technology or embodiment as the present utility model.

[0026] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A loader housing oil passage structure, comprising: Housing (100) and oil pump (10) connected to said housing (100). The feature is that: the housing (100) is provided with a first oil hole (201), the first oil hole (201) is connected to a long inclined oil passage, the long inclined oil passage is a long inclined plate structure, and one end of the oil passage is connected to an intermediate shaft bearing hole (301).

2. The loader housing oil passage structure according to claim 1, characterized in that: The oil pump (10) is connected to a pressure oil pipe (101) and a cooling oil pipe (102), and both the pressure oil pipe (101) and the cooling oil pipe (102) are connected to the housing (100).

3. The loader housing oil passage structure according to claim 1, characterized in that: The housing (100) has a filter mounting point (30) at its center, and a filter is installed on the filter mounting point (30).

4. The loader housing oil passage structure according to claim 1, characterized in that: A second oil hole (202) is provided on one side of the first oil hole (201), and the first oil hole (201) and the second oil hole (202) are located on both sides of the housing (100).

5. The loader housing oil passage structure according to claim 1, characterized in that: The long inclined oil passage is located outside the housing (100).

6. The loader housing oil passage structure according to claim 1, characterized in that: The intermediate shaft passes through the center of the intermediate shaft bearing hole (301).

7. The loader housing oil passage structure according to claim 1, characterized in that: The outer surface of the housing (100) is provided with a process processing hole, which is a hollow tube.

8. The loader housing oil passage structure according to claim 7, characterized in that: The process hole is connected to the interior of the housing (100).

9. The loader housing oil passage structure according to claim 7, characterized in that: The process hole includes a first sealing point (302) and a second sealing point (303), and both the first sealing point (302) and the second sealing point (303) are provided with plugs.

10. The loader housing oil passage structure according to claim 9, characterized in that: The first blocking point (302) and the second blocking point (303) are perpendicular to each other.

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