Precise oil level sensor test support

By designing a precision oil level sensor test bracket and using a motor-driven pulley system to move the slide table and move the oil level sensor, the problems of low accuracy and poor repeatability of existing brackets are solved, and high-precision and high-repeatability oil level testing is achieved.

CN224034739UActive Publication Date: 2026-03-24JIANGYIN HUAHENG INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing oil level sensor test brackets have low accuracy and poor repeatability, which cannot meet the requirements for high-precision oil level monitoring.

Method used

A precision oil level sensor test bracket was designed, comprising a drive assembly, a linear assembly, and a test assembly. The motor drives the active pulley and the driven pulley to drive the conveyor belt, and the slide moves on the linear support to drive the oil level sensor for testing.

Benefits of technology

It achieves high-precision and smooth oil level testing, meets the oil level measurement and calibration requirements within a small range, and improves repeatability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a testing support, belongs to the technical field of oil level sensor testing devices, and particularly relates to a precise oil level sensor testing support which comprises a driving assembly, a linear assembly and a testing assembly. The driving assembly and the testing assembly are respectively mounted on the linear assembly; the driving assembly is composed of a motor, a driving belt wheel, a driven belt wheel and a conveying belt. The linear assembly is composed of an upper support, a lower support and a linear support. The testing assembly is composed of a sliding table, a connecting frame and an oil level sensor. According to the utility model, the testing mode of the oil level sensor is changed, and the testing work is carried out in a mode that the motor drives the oil level sensor testing bracket assembled by the linear sliding table, so that the oil level sensor testing bracket has the advantages of higher precision, smooth operation and high repeatability, and can meet the requirements of oil level testing and calibration in a small measuring range.
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Description

Technical Field

[0001] This utility model discloses a test bracket, belonging to the technical field of oil level sensor test device, specifically relating to a precision oil level sensor test bracket. Background Technology

[0002] More and more cooling tower fans are using three-parameter transmitters (vibration, oil temperature, and oil level) to monitor the operation of the cooling tower fan gearbox. Monitoring the oil level is crucial for ensuring adequate lubrication, preventing oil leaks, and extending bearing life. Many manufacturers are dedicated to the development and research of oil level transmitters. However, during commissioning, they often struggle with the lack of suitable, high-precision supports to detect the relationship between changes in oil level and current.

[0003] Oil level sensors and transmitters, due to their small measurement range and high accuracy, require highly accurate, stable, and repeatable supports. Simple supports, due to their low testing accuracy and poor repeatability, are unsuitable for the commissioning of oil level sensors and transmitters. Utility Model Content

[0004] Purpose of the utility model: To provide a precision oil level sensor test bracket to solve the problems mentioned above.

[0005] Technical solution: A precision oil level sensor test bracket, the test bracket comprising: a drive assembly, a linear assembly, and a test assembly;

[0006] The driving component and the testing component are respectively mounted on the linear component;

[0007] The drive assembly consists of a motor, a driving pulley, a driven pulley, and a conveyor belt;

[0008] The linear assembly consists of an upper support, a lower support, and a linear support;

[0009] The test assembly consists of a slide, a connecting frame, and an oil level sensor.

[0010] In a further embodiment, one end of the linear support is fixedly connected to the upper support, and the other end is fixedly connected to the lower support.

[0011] In a further embodiment, the motor is fixedly mounted on one side of the upper support, the driving pulley is rotatably mounted inside the upper support and connected to the motor shaft to rotate with the motor, the driven pulley is rotatably mounted inside the lower support, and the conveyor belt is simultaneously connected to the driving pulley and the driven pulley to drive the driven pulley to rotate.

[0012] In a further embodiment, the slide table is slidably mounted on the linear support and connected to the conveyor belt, the connecting frame is fixedly mounted on the slide table, and the oil level sensor is mounted on the connecting frame.

[0013] In a further embodiment, the conveyor belt is provided with connecting blocks at both ends, and the connecting blocks are fixedly connected to the slide table by bolts.

[0014] In a further embodiment, the linear support is provided with sliding rods on both sides, and the slide table is provided with pulleys at the four corners. The pulleys cooperate with the sliding rods to move the slide table on the linear support.

[0015] In a further embodiment, both the upper support and the lower support are provided with extreme position contacts.

[0016] Beneficial effects: This utility model changes the way oil level sensors are tested. The oil level sensor test bracket is assembled by a linear slide table driven by a motor. As a result, this utility model has the advantages of high accuracy, smooth operation and high repeatability, and can meet the needs of oil level testing and calibration within a small range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 2 This is the front view of this utility model.

[0019] Figure 3 This is the left view of this utility model.

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] Reference numerals: Drive assembly 1, Linear assembly 2, Test assembly 3, Motor 10, Driving pulley 11, Driven pulley 12, Conveyor belt 13, Upper support 20, Lower support 21, Linear support 22, Slide table 30, Connecting frame 31, Oil level sensor 32, Connecting block 23, Slide rod 24, Pulley 25, Extreme position contact 26. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] A precision oil level sensor test bracket includes: a drive assembly 1, a linear assembly 2, and a test assembly 3.

[0026] In one embodiment, such as Figures 1 to 4 As shown, the drive component 1 and the test component 3 are respectively mounted on the linear component 2;

[0027] The drive assembly 1 consists of a motor 10, a drive pulley 11, a driven pulley 12, and a conveyor belt 13;

[0028] The linear assembly 2 consists of an upper support 20, a lower support 21, and a linear support 22;

[0029] The test component 3 consists of a slide 30, a connecting frame 31, and an oil level sensor 32.

[0030] In one embodiment, such as Figures 1 to 4 As shown, one end of the linear support 22 is fixedly connected to the upper support 20, and the other end is fixedly connected to the lower support 21.

[0031] In one embodiment, such as Figures 1 to 4As shown, the motor 10 is fixedly installed on one side of the upper support 20, the driving pulley 11 is rotatably installed inside the upper support 20 and connected to the rotating shaft of the motor 10 to rotate with the motor 10, the driven pulley 12 is rotatably installed inside the lower support 21, and the conveyor belt 13 is connected to both the driving pulley 11 and the driven pulley 12 to drive the driven pulley 12 to rotate.

[0032] In one embodiment, such as Figures 1 to 4 As shown, the slide table 30 is slidably mounted on the linear support 22 and connected to the conveyor belt 13, the connecting frame 31 is fixedly mounted on the slide table 30, and the oil level sensor 32 is mounted on the connecting frame 31.

[0033] In one embodiment, such as Figures 1 to 4 As shown, the conveyor belt 13 has connecting blocks 23 at both ends, and the connecting blocks 23 are fixedly connected to the slide table 30 by bolts.

[0034] In one embodiment, such as Figures 1 to 4 As shown, the linear support 22 is provided with sliding rods 24 on both sides, and the slide table 30 is provided with pulleys 25 at the four corners. The pulleys 25 cooperate with the sliding rods 24 to make the slide table 30 move on the linear support 22.

[0035] In one embodiment, such as Figures 1 to 4 As shown, both the upper support 20 and the lower support 21 are provided with extreme position contacts 26.

[0036] Working principle: When this invention is in operation, the motor 10 first drives the active pulley 11 to rotate. The active pulley 11 then drives the driven pulley 12 to rotate via the conveyor belt 13. The conveyor belt 13 then drives the slide table 30 to move via the connecting block 23. The slide table 30 moves up and down through the pulleys 25 on both sides and the sliding rods 24 on both sides of the linear support 22, thereby driving the connecting frame 31 to move, which in turn drives the oil level sensor 32 to move. Touching the extreme position contact 26 stops the oil level sensor or causes it to stop automatically. This invention changes the way the oil level sensor 32 is tested. The oil level sensor 32 test bracket assembled by the linear slide table 30 driven by the motor 10 is used for testing. Therefore, this invention has the advantages of high accuracy, smooth operation, and high repeatability, and can meet the needs of oil level testing and calibration within a small range.

[0037] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A precision oil level sensor test bracket, characterized in that, The test bracket includes: a drive assembly, a linear assembly, and a test assembly; The driving component and the testing component are respectively mounted on the linear component; The drive assembly consists of a motor, a driving pulley, a driven pulley, and a conveyor belt; The linear assembly consists of an upper support, a lower support, and a linear support; The test assembly consists of a slide, a connecting frame, and an oil level sensor.

2. The precision oil level sensor test bracket according to claim 1, characterized in that, One end of the linear support is fixedly connected to the upper support, and the other end is fixedly connected to the lower support.

3. The precision oil level sensor test bracket according to claim 1, characterized in that, The motor is fixedly installed on one side of the upper support. The driving pulley is rotatably installed inside the upper support and connected to the motor shaft to rotate with the motor. The driven pulley is rotatably installed inside the lower support. The conveyor belt is connected to both the driving pulley and the driven pulley to drive the driven pulley to rotate.

4. The precision oil level sensor test bracket according to claim 1, characterized in that, The slide table is slidably mounted on the linear support and connected to the conveyor belt. The connecting frame is fixedly mounted on the slide table, and the oil level sensor is mounted on the connecting frame.

5. The precision oil level sensor test bracket according to claim 1, characterized in that, The conveyor belt has connecting blocks at both ends, and the connecting blocks are fixedly connected to the slide table by bolts.

6. The precision oil level sensor test bracket according to claim 1, characterized in that, The linear support has sliding rods on both sides, and pulleys are provided at the four corners of the slide table. The pulleys cooperate with the sliding rods to allow the slide table to move on the linear support.

7. The precision oil level sensor test bracket according to claim 1, characterized in that, Both the upper support and the lower support are provided with extreme position contacts.