Lubricating oil pump structure with rotation speed and pressure detection

Abstract

The utility model relates to the technical field of oil pump provides a kind of oil pump structure with speed and pressure detection, including main shaft, pump cover and pump body, further include speed detection module;The speed detection module includes signal disc and speed sensor, the signal disc is fixedly installed on the main shaft and rotates synchronously with the main shaft, the speed sensor is fixedly installed on the pump cover and is oppositely arranged with the signal disc, and the speed sensor is used to collect the signal generated by the signal disc rotation to obtain the speed of the main shaft.The utility model provides a kind of oil pump structure with speed and pressure detection, can realize the direct, real-time monitoring of oil pump self speed, accurately locks fault position, reduces maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of lubricating oil pump technology, specifically to a lubricating oil pump structure with speed and pressure detection. Background Technology

[0002] The oil pump is a core component of the engine lubrication system, and its operating condition directly affects the engine's reliability. In existing technology, the secondary oil pump is usually directly connected to the crankshaft and lacks a speed monitoring structure for the pump itself. The pump speed can only be indirectly calculated by combining the crankshaft speed with the reduction ratio, resulting in insufficient accuracy of the speed data.

[0003] This structural defect makes it difficult for maintenance personnel to accurately distinguish whether the fault originates from the oil pump itself or other related components when an abnormality occurs in the engine lubrication system. This increases the difficulty of troubleshooting and maintenance costs, and affects the engine's maintenance efficiency and operational safety. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lubricating pump structure with speed and pressure detection, which can realize direct and real-time monitoring of the speed of the lubricating pump itself, accurately locate the fault location, and reduce the difficulty of maintenance.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a lubricating oil pump structure with speed and pressure detection, including a main shaft, a pump cover and a pump body, and also including a speed detection module;

[0006] The speed detection module includes a signal disk and a speed sensor. The signal disk is fixedly mounted on the spindle and rotates synchronously with the spindle. The speed sensor is fixedly mounted on the pump cover and is arranged opposite to the signal disk. The speed sensor is used to collect the signal generated by the rotation of the signal disk to obtain the speed of the spindle.

[0007] Furthermore, it also includes a pressure detection module, which includes a pressure sensor;

[0008] A second threaded hole is provided at the outlet high-pressure flow channel of the pump body. The pressure sensor is fixedly connected to the pump body through the second threaded hole. The pressure sensor is used to detect the outlet pressure of the lubricating oil pump booster pump in real time.

[0009] Furthermore, the signal disk is detachably fixed to the end of the spindle by screws.

[0010] Furthermore, the connection end of the pressure sensor is provided with an external thread that matches the second threaded hole.

[0011] Furthermore, the speed sensor is threaded or snap-fitted to the pump cover.

[0012] The beneficial effects of this utility model are as follows: This utility model provides a lubricating pump structure with speed and pressure detection. Through the cooperation of the signal disk and the speed sensor, the speed of the lubricating pump itself can be directly collected. There is no need to rely on the crankshaft speed for indirect calculation. The speed data is more accurate and abnormal speed can be detected in time. When the lubrication system is abnormal, it can quickly distinguish whether the fault comes from the lubricating pump itself, accurately locate the fault, and reduce the difficulty and cost of maintenance. Attached Figure Description

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

[0014] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model.

[0015] Reference numerals: 10-spindle, 20-pump cover, 30-pump body, 40-signal disc, 50-speed sensor, 60-pressure sensor, 70-screw. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] In this application, unless otherwise expressly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] In the description of this application, it should be understood that the terms "longitudinal", "horizontal", "level", "top", "bottom", "upper", "lower", "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0020] like Figures 1-2 As shown, this utility model provides a lubricating pump structure with speed and pressure detection, including a main shaft 10, a pump cover 20, and a pump body 30. The above are all prior art, and their specific structures will not be described in detail here. This structure also includes a signal disk 40, a speed sensor 50, and a pressure sensor 60.

[0021] Preferably, the signal disk 40 is made of stainless steel and has 12 teeth evenly machined on its edge. It is fixed to the free end of the spindle 10 by two symmetrically arranged screws 70 to ensure that the signal disk 40 and the spindle 10 rotate coaxially without relative displacement.

[0022] The speed sensor 50 is a Hall effect speed sensor with an external thread at its connection end. The pump cover 20 has a corresponding first threaded hole. After the speed sensor 50 is screwed into the first threaded hole, it is locked in place by a nut. At this time, the detection end of the speed sensor 50 is aligned with the toothed groove on the edge of the signal disk 40, and the gap between the two is controlled at 0.5-1mm to ensure the stability of signal acquisition.

[0023] A second threaded hole of M10×1 is machined on the side wall of the high-pressure flow channel at the outlet of the pump body 30. The axis of the second threaded hole intersects perpendicularly with the axis of the high-pressure flow channel. Preferably, the pressure sensor 60 is a diffused silicon pressure sensor 60, and the external thread of its connecting end matches the second threaded hole. After the pressure sensor 60 is screwed into the second threaded hole, PTFE tape is wrapped around the threaded connection to seal it and prevent oil leakage. The detection end of the pressure sensor 60 extends into the high-pressure flow channel and is in direct contact with the oil.

[0024] The working process of this embodiment is as follows: When the oil pump is working, the main shaft 10 drives the signal disk 40 to rotate synchronously. The speed sensor 50 generates a pulse signal by detecting the alternating passage of the toothed grooves, and calculates the real-time speed of the oil pump based on the frequency of the pulse signal. At the same time, the pressure sensor 60 directly detects the oil pressure in the high-pressure flow channel and converts the pressure signal into an electrical signal output. By monitoring the speed and pressure signals in real time, the working status of the oil pump can be intuitively judged. When the speed or pressure exceeds the preset range, it can be determined that the oil pump has a fault, achieving precise positioning.

[0025] This structure, through the cooperation of the signal disk 40 and the speed sensor 50, directly collects the speed of the oil pump itself, without relying on the crankshaft speed for indirect calculation. The speed data is more accurate, and abnormal speed can be detected in time. When the lubrication system malfunctions, it can quickly distinguish whether the fault comes from the oil pump itself, accurately locate the fault, and reduce the difficulty and cost of maintenance.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lubricating oil pump structure with speed and pressure detection, characterized in that: It includes a main shaft, a pump cover, and a pump body, and is characterized by further including a speed detection module; The speed detection module includes a signal disk and a speed sensor. The signal disk is fixedly mounted on the spindle and rotates synchronously with the spindle. The speed sensor is fixedly mounted on the pump cover and is arranged opposite to the signal disk. The speed sensor is used to collect the signal generated by the rotation of the signal disk to obtain the speed of the spindle.

2. The lubricating oil pump structure with speed and pressure detection according to claim 1, characterized in that: It also includes a pressure detection module, which includes a pressure sensor; A second threaded hole is provided at the outlet high-pressure flow channel of the pump body. The pressure sensor is fixedly connected to the pump body through the second threaded hole. The pressure sensor is used to detect the outlet pressure of the lubricating oil pump booster pump in real time.

3. The lubricating oil pump structure with speed and pressure detection according to claim 1, characterized in that: The signal disk is detachably fixed to the end of the spindle by screws.

4. The lubricating oil pump structure with speed and pressure detection according to claim 2, characterized in that: The pressure sensor's connection end is provided with an external thread that matches the second threaded hole.

5. The lubricating oil pump structure with speed and pressure detection according to claim 1, characterized in that: The speed sensor is threaded or snap-fitted to the pump cover.

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