Arrangement of a steering pump

Abstract

The utility model discloses a kind of arrangement structure of steering pump, including steering pump and steering pump gear;Steering pump is arranged on flywheel housing, from the direction of flywheel housing along the axial direction of crankshaft, steering pump is located in the upper left part of flywheel housing;Steering pump gear is engaged with big idler gear in flywheel housing;Wherein steering pump gear directly through big idler gear power take-off, and drive steering pump work.The arrangement structure of steering pump of the utility model can make oil inlet and oil bottle relative height and oil pipe length substantially flush, and pipeline length is shorter than the pipeline distance of old scheme, without U-shaped structure.

Description

Technical Field

[0001] This utility model relates to the field of engine design and manufacturing, and in particular to an arrangement structure of a steering pump. Background Technology

[0002] The two most popular existing layout schemes for steering pumps are as follows: Figures 1 to 5 As shown:

[0003] Option 1: The steering pump 1 is arranged on the flywheel housing 3 near the air intake side. The steering pump gear 101 is driven by the air compressor 5 gear 501 through the large idler gear 301. The large idler gear 301 is driven by the timing gear 4.

[0004] Problems: The air compressor gear bearings and bushings will be subjected to additional loads, posing a reliability risk. An extra layer of gear transmission will also increase friction loss.

[0005] Option 2: The steering pump 2 is arranged on the PTO port 302 of the flywheel housing 3. The gear 201 of the steering pump is directly driven by the large idler gear 301, which is driven by the timing gear 4.

[0006] Problem: The relative height between the oil inlet and the oil reservoir, as well as the length of the oil pipe, do not meet the requirements of the vehicle. This arrangement results in a U-shaped structure in the pipeline, and the pipeline will detour, leading to excessive length.

[0007] Because existing popular solutions all have different drawbacks, technical personnel in the industry are looking for better layout solutions.

[0008] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0009] The purpose of this utility model is to provide a steering pump arrangement structure that allows the oil inlet to be roughly level with the oil reservoir and the oil pipe length, and the pipe length is shorter than that of the old solution, without a U-shaped structure.

[0010] To achieve the above objectives, this utility model provides a steering pump arrangement structure, including a steering pump and a steering pump gear; the steering pump is mounted on the flywheel housing, and viewed from the flywheel housing direction along the crankshaft axial direction, the steering pump is located in the upper left part of the flywheel housing; the steering pump gear meshes with a large idler gear inside the flywheel housing; wherein the steering pump gear directly takes power through the large idler gear and drives the steering pump to work.

[0011] In a preferred embodiment, the steering pump is positioned higher than the air compressor, which is also located on the upper left side of the flywheel housing.

[0012] In a preferred embodiment, the compressor gear of the air compressor also takes power directly through the large idler gear, and the position of the compressor gear is lower than that of the steering pump gear.

[0013] In a preferred embodiment, the flywheel housing includes a steering pump mounting portion disposed on the upper left side of the flywheel housing, and the steering pump is mounted at the steering pump mounting portion by bolts.

[0014] In a preferred embodiment, the steering pump mounting part has a cylindrical structure, and the connecting screw hole is located at the edge of the cylindrical structure.

[0015] In a preferred embodiment, the cylindrical structure includes an incomplete bottom and a wall portion.

[0016] In a preferred embodiment, the flywheel housing further includes a reinforcing ramp, which is located on the top right side of the flywheel housing.

[0017] In a preferred embodiment, the reinforcing ramp extends from the top of the flywheel housing to the flywheel housing cover connection surface of the flywheel housing.

[0018] Compared with the prior art, the arrangement structure of the steering pump of this utility model has the following advantages: the steering pump of this solution is arranged close to the gearbox mounting surface, and the steering pump is directly driven by a large idler gear; the relative height of the oil inlet and the oil reservoir and the length of the oil pipe are basically the same, and the pipe length is shorter than the relevant length of the prior art, and there is no U-shaped structure; compared with the prior art, the steering pump position is closer to the engine components, the arrangement is more compact, and the aesthetics are better; compared with the prior art, the steering pump drive reduces one layer of gear transmission, resulting in a lower failure rate and lower noise. Attached Figure Description

[0019] Figure 1 This is a front view structural schematic diagram of the steering pump arrangement structure according to two embodiments of the prior art;

[0020] Figure 2 This is a schematic diagram of the gear three-dimensional structure of the steering pump arrangement structure according to two embodiments of the prior art;

[0021] Figures 3 to 5 This is a three-dimensional structural diagram of a flywheel housing according to an embodiment of the prior art;

[0022] Figure 6 This is a schematic diagram of the gear planar structure of the steering pump arrangement according to an embodiment of the present utility model;

[0023] Figure 7This is a schematic diagram of the gear three-dimensional structure of the steering pump arrangement structure according to an embodiment of the present utility model;

[0024] Figure 8 This is a three-dimensional positional schematic diagram of the steering pump arrangement structure according to an embodiment of the present utility model;

[0025] Figures 9 to 11 This is a three-dimensional structural schematic diagram of a flywheel housing according to an embodiment of the present invention.

[0026] Explanation of key figure labels:

[0027] 1-Variable displacement steering pump, 101-Steering pump gear, 2-Flywheel housing, 201-Large idler gear, 202-Steering pump mounting part, 203-Reinforcing inclined surface, 204-Connecting top surface, 205-Flywheel housing cover connecting surface, 206-Connecting screw hole, 3-Air compressor, 301-Compressor gear, 4-Timing gear. Detailed Implementation

[0028] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0029] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0030] like Figures 6 to 11 As shown, a preferred embodiment of the present invention provides a steering pump arrangement structure, including a steering pump 1 and a steering pump gear 101. The steering pump 1 is mounted on a flywheel housing 2. Viewed from the flywheel housing 2 along the axial direction of the crankshaft, the steering pump 1 is located in the upper left part of the flywheel housing 2. The steering pump gear 101 meshes with a large idler gear 201 inside the flywheel housing 2. The steering pump gear 101 directly takes power from the large idler gear 201 and drives the steering pump 1 to work.

[0031] In some embodiments, the steering pump 1 of this embodiment is arranged close to the gearbox mounting surface, and the steering pump 1 is directly driven by the large idler gear 201, which is directly driven by the timing gear 4.

[0032] In some implementations, the steering pump 1 is positioned higher than the air compressor 3, which is also located on the upper left side of the flywheel housing 2.

[0033] In some embodiments, the compressor gear 301 of the air compressor 3 also takes power directly through the large idler gear 201, and the position of the compressor gear 301 is lower than the position of the steering pump gear 101.

[0034] Please see Figures 9 to 11 In some embodiments, the flywheel housing 2 includes a steering pump mounting portion 202, which is located on the upper left side of the flywheel housing 2, and the steering pump 1 is mounted on the steering pump mounting portion 202 by bolts.

[0035] In some embodiments, the steering pump mounting part 202 has a cylindrical structure, and the connecting screw hole 206 is provided at the edge of the cylindrical structure.

[0036] In some embodiments, the cylindrical structure includes an incomplete bottom and wall portion, which facilitates the arrangement of piping and wiring for the steering pump 1.

[0037] In some embodiments, the flywheel housing 2 further includes a reinforcing bevel 203, which is located on the top right side of the flywheel housing 2. The reinforcing bevel 203 extends from the connecting top surface 204 of the flywheel housing 2 to the flywheel housing cover connecting surface 205. The position of the reinforcing bevel 203 is the same as the PTO port of the flywheel housing 2 in the prior art. In this embodiment, the PTO port is eliminated, and the mounting hole of the original PTO port is thickened. The front is reinforced with the reinforcing bevel 203 to ensure strength.

[0038] In summary, the arrangement of the steering pump of this utility model has the following advantages: the steering pump of this solution is arranged close to the gearbox mounting surface, and the steering pump is directly driven by a large idler gear; this makes the relative height of the oil inlet and the oil reservoir and the length of the oil pipe basically the same, and the pipe length is shorter than that of the prior art, and there is no U-shaped structure; compared with the prior art, the steering pump position is closer to the engine components, the arrangement is more compact, and the aesthetics are better; compared with the prior art, the steering pump drive reduces one layer of gear transmission, resulting in a lower failure rate and lower noise.

[0039] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A layout structure for a steering pump, characterized in that, include: A steering pump, mounted on the flywheel housing, is located in the upper left part of the flywheel housing when viewed from the direction of the flywheel housing along the axial direction of the crankshaft; and The steering pump gear meshes with a large idler gear inside the flywheel housing; The steering pump gear takes power directly from the large idler gear and drives the steering pump.

2. The arrangement structure of the steering pump as described in claim 1, characterized in that, The steering pump is positioned higher than the air compressor, which is also located on the upper left side of the flywheel housing.

3. The arrangement structure of the steering pump as described in claim 2, characterized in that, The compressor gear of the air compressor also takes power directly through the large idler gear, and the position of the compressor gear is lower than the position of the steering pump gear.

4. The arrangement structure of the steering pump as described in claim 2, characterized in that, The flywheel housing includes a steering pump mounting portion located on the upper left side of the flywheel housing, and the steering pump is mounted on the steering pump mounting portion by bolts.

5. The arrangement structure of the steering pump as described in claim 4, characterized in that, The steering pump mounting part has a cylindrical structure, and the connecting screw hole is located at the edge of the cylindrical structure.

6. The arrangement structure of the steering pump as described in claim 5, characterized in that, The cylindrical structure includes an incomplete bottom and wall portion.

7. The arrangement structure of the steering pump as described in claim 4, characterized in that, The flywheel housing also includes a reinforcing ramp, which is located on the top right side of the flywheel housing.

8. The arrangement structure of the steering pump as described in claim 7, characterized in that, The reinforcing slope extends from the connecting top surface of the flywheel housing to the flywheel housing cover connecting surface of the flywheel housing.

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