A gear pump life detection device

By designing structures such as an adjustable base and a movable base block, flexible testing of gear pumps under different operating conditions is achieved, solving the problems of single testing parameters and insufficient operating condition simulation in existing devices, and providing efficient performance analysis and life assessment support.

CN224413842UActive Publication Date: 2026-06-26YANTAI LINDE HYDRAULIC MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANTAI LINDE HYDRAULIC MASCH CO LTD
Filing Date
2025-08-21
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing gear pump testing devices have limited testing parameters, cannot flexibly replace flow meters, lack sufficient simulation of testing conditions, and are inconvenient to adjust test prototypes, making it difficult to meet the diverse and high-precision requirements of modern industrial production for gear pump performance and life testing.

Method used

A gear pump life testing device was designed, which adopts an adjustable base, a testing switching component and a moving base block. The device achieves flexible movement and precise positioning of the gear pump through threaded and sliding fits. Combined with the modular installation and disassembly of the flow meter, it can simulate multiple working conditions for testing on the same device.

Benefits of technology

It enables comprehensive testing of gear pumps under different operating conditions, provides rich and accurate performance analysis data, improves testing efficiency and data accuracy, and enhances the flexibility and ease of maintenance of the testing device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of gear pump life detection devices of life detection technical field, including adjusting pedestal, the top of adjusting pedestal is equipped with detection switching component, the top of detection switching component is also provided with gear pump machine, detection switching component includes adjusting component, the middle part of adjusting component is equipped with moving base block, adjusting component includes two groups of side plates, two groups of side plates are respectively installed at the both ends of adjusting pedestal, in actual detection process, by collocating the flow measurer of multiple parameters, the running state of gear pump under various actual working conditions can be simulated, to detect its flow characteristics comprehensively, this not only can capture subtle performance change of gear pump under different operating conditions, but also can provide rich, accurate data support for performance analysis and life prediction, realize depth analysis of gear pump performance and accurate evaluation of service life, effectively solve the deficiency of traditional detection device in detection parameter flexibility and working condition simulation diversity.
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Description

Technical Field

[0001] This utility model relates to the field of life testing technology, and in particular to a gear pump life testing device. Background Technology

[0002] A gear pump is a positive displacement pump that uses one or more pairs of meshing gears to transport liquids. Its working principle is based on the relative rotation of the driving and driven gears within the pump body. This rotation draws the liquid from the suction port into the space between the gears, and then, as the gears rotate, delivers it to the discharge port, achieving continuous liquid transport. Gear pumps are compact in structure, simple to manufacture, and offer advantages such as stable flow rate, low pressure pulsation, and resistance to high-viscosity media. They are commonly used to transport lubricating oil, fuel oil, and hydraulic oil.

[0003] In the manufacturing process of gear pumps, to ensure their performance and quality, specialized equipment is required to conduct performance and service life quality tests before they leave the factory. However, existing gear pump testing devices typically only use flow meters with fixed parameters for flow measurement in actual use. They cannot flexibly change flow meters with different parameters according to different usage conditions and operating requirements of the gear pump. This limits the direction of testing gear pump performance and service life, and results in problems such as single testing parameters, insufficient simulation of testing conditions, and inconvenience in adjusting test prototypes.

[0004] Therefore, existing gear pump testing devices are insufficient to meet the diverse and high-precision requirements of modern industrial production for gear pump performance and life testing, exhibiting certain limitations. There is an urgent need to develop a gear pump life testing device that can overcome these problems. Based on this, we propose a gear pump life testing device. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a gear pump life testing device that can solve the problems of existing gear pump testing devices having single testing parameters, inability to flexibly replace flow measuring devices, insufficient simulation of testing conditions, and inconvenience in adjusting test prototypes.

[0007] To solve the above technical problems, this utility model provides a gear pump life detection device, which adopts the following technical solution: it includes an adjusting base, a detection switching component is installed on the top of the adjusting base, a gear pump is also provided on the top of the detection switching component, the detection switching component includes an adjusting component, and a movable base block is provided in the middle of the adjusting component;

[0008] The adjusting component includes two sets of side plates, which are respectively installed at both ends of the adjusting base. An adjusting screw is also connected between the two sets of side plates via a bearing.

[0009] Optionally, a motor drive is installed on the top of one end of the movable base block, and the output end of the motor drive is connected to the gear pump via a transmission belt. A drive motor is provided on the side of the motor drive away from the motor drive.

[0010] Optionally, an adjusting screw hole is provided through the middle of the movable base block. The adjusting screw hole is matched with the adjusting screw rod structure. The adjusting screw hole and the adjusting screw rod are threaded together. Guide plates are respectively installed on both sides of the movable base block near the adjusting screw hole.

[0011] Optionally, a first guide groove is provided through the middle of the adjusting base, the first guide groove is matched with the moving base structure, the first guide groove and the guide plate are in sliding fit, and a second guide groove is provided at the top of the adjusting base, the second guide groove and the first guide groove are connected through each other.

[0012] Optionally, the adjustment base is provided with embedded slots on both sides, and extraction detection components are also provided on both sides of the adjustment base.

[0013] Optionally, the extraction and detection component includes a lifting frame, on one side of which are several sets of flow meters with different parameters. On the side of the lifting frame away from the flow meters, there are also several sets of embedded card plates. The embedded card plates are matched with the embedded card slot structure, and the embedded card plates and the embedded card slots are engaged by a snap-fit.

[0014] In summary, this utility model has at least one of the following beneficial effects:

[0015] 1. The gear pump testing device designed in this scheme, through the threaded engagement of the moving base block and the adjusting screw, and the sliding engagement of the guide plate and the guide groove, enables the gear pump to move flexibly and be precisely positioned in the horizontal direction. This allows the gear pump to be easily connected in series with flow meters of different parameters. In actual testing, by using flow meters with multiple parameters, the operating state of the gear pump under various actual working conditions can be simulated, thereby comprehensively testing its flow characteristics. This not only captures the subtle performance changes of the gear pump under different operating conditions, but also provides rich and accurate data support for performance analysis and life prediction, enabling in-depth analysis of gear pump performance and accurate assessment of its service life. This effectively solves the shortcomings of traditional testing devices in terms of the flexibility of testing parameters and the diversity of operating condition simulation.

[0016] 2. The gear pump testing device designed in this scheme, through the snap-fit ​​structure of the embedded card plate and embedded card slot, allows for convenient installation and disassembly of the testing components. This design enables the adjustment base to quickly add or replace the mounting frame equipped with multiple sets of flow meters with different parameters according to usage requirements. At the same time, testing personnel can easily clean, maintain, and replace the flow meters. In actual use, when it is necessary to replace the flow meter to adapt to a new testing task or to maintain the used flow meter, the operation can be completed without complicated tools and cumbersome procedures. This not only improves testing efficiency and avoids potential damage to the equipment due to difficult disassembly, but also ensures the good working condition of the flow meter and the accuracy of the testing data. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the detection switching component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the movable base block structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the adjusting base structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the extraction and detection component of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Adjusting base; 2. Detection switching component; 3. Gear pump; 4. Adjusting component; 5. Moving base block; 6. Side plate; 7. Adjusting screw; 8. Motor drive; 9. Drive motor; 10. Adjusting screw hole; 11. Guide plate; 12. First guide groove; 13. Second guide groove; 14. Embedded slot; 15. Extraction detection component; 16. Lifting frame; 17. Flow meter; 18. Embedded card plate. Detailed Implementation

[0024] 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.

[0025] Example: Refer to Figures 1 to 5 This utility model provides an embodiment of a gear pump life testing device, including an adjusting base 1, a testing switching component 2 installed on the top of the adjusting base 1, and a gear pump 3 also installed on the top of the testing switching component 2. The testing switching component 2 includes an adjusting part 4, a movable base block 5 in the middle of the adjusting part 4, and two sets of side plates 6, which are respectively installed at both ends of the adjusting base 1. An adjusting screw 7 is connected between the two sets of side plates 6 through a bearing. The gear pump testing device drives the movable base block 5 to move linearly along the first guide groove 12 by rotating the adjusting screw 7. The guide plate 11 slides stably in the guide groove to maintain coaxiality and repeatability, which facilitates the sequential series connection and switching of the gear pump 3 with flow meters 17 with different parameters. By conducting multiple comparative tests on the same device using flow meters 17 with different ranges or different measurement principles, the flow response curves and performance characteristics of the gear pump 3 under various working conditions can be systematically obtained.

[0026] A motor drive 8 is mounted on the top of one end of the movable base block 5. The output end of the motor drive 8 is connected to the gear pump 3 via a transmission belt. A drive motor 9 is located on the side of the motor drive 8 away from the motor drive 8. The motor drive 8 mounted on the top of one end of the movable base block 5 is connected to the gear pump 3 via a transmission belt, which can provide controllable rotational power to the gear pump 3 under test, thereby realizing the cyclic drive and stable operation of the gear pump 3 under different speeds and loads. It can meet the testing requirements of performance parameters such as flow rate, pressure, temperature rise, and vibration under multiple working conditions. An adjustment screw hole 10 is opened through the middle of the movable base block 5, and the adjustment screw hole 10 is connected to the adjustment screw 7. The components are matched, with the adjusting screw hole 10 and the adjusting screw 7 having a threaded fit. Guide plates 11 are installed on both sides of the moving base 5 near the adjusting screw hole 10. Through the structural design of the threaded fit between the adjusting screw hole 10 and the adjusting screw 7, the moving base 5 can be displaced in the horizontal direction when the adjusting screw 7 is rotated. The guide plates 11 cooperate with the guide grooves on the adjusting base 1, which can ensure that the moving base 5 maintains stable and accurate linear motion during the movement. This structural design can easily and quickly connect the gear pump 3 with flow measuring instruments 17 with different parameters in series, meeting the needs of performance testing of the gear pump 3 under different testing conditions.

[0027] A first guide groove 12 is provided through the middle of the adjusting base 1. The first guide groove 12 matches the structure of the moving base 5. The first guide groove 12 and the guide plate 11 are in sliding fit. A second guide groove 13 is provided at the top of the adjusting base 1. The second guide groove 13 and the first guide groove 12 are in through fit. Through the sliding fit between the first guide groove 12 and the guide plate 11, a stable horizontal guide path can be provided for the moving base 5, which can effectively constrain the movement trajectory of the moving base 5 and prevent it from deviating or shaking during movement, ensuring accurate docking between the gear pump 3 and the flow meter 17. Embedded slots 14 are provided on both sides of the adjusting base 1. The device includes an extraction and detection component 15. Embedded slots 14 are provided on both sides of the adjustment base 1 for the detachable connection between the extraction and detection component 15 and the adjustment base 1. The extraction and detection component 15 includes a lifting frame 16. Several sets of flow meters 17 with different parameters are installed on one side of the lifting frame 16. Multiple sets of embedded plates 18 are distributed on the side of the lifting frame 16 away from the flow meters 17. The embedded plates 18 and embedded slots 14 are structurally matched, and the embedded plates 18 and embedded slots 14 are in a snap-fit ​​connection. Through this snap-fit ​​structure, the lifting frame 16, with multiple sets of flow meters 17 with different parameters installed on one side, can be installed on both sides of the adjustment base 1. This design allows the adjustment base 1 to quickly install and remove the extraction and detection component 15 according to actual usage conditions. At the same time, it also allows users to easily clean, maintain, and replace the flow meter 17, ensuring the measurement accuracy and reliability of the flow meter 17, thereby improving the flexibility and maintenance efficiency of the entire detection device.

[0028] Working Principle: The gear pump testing device designed in this scheme achieves controlled displacement and precise positioning of the gear pump 3 in the horizontal direction through the threaded engagement between the adjusting screw hole 10 on the moving base block 5 and the adjusting screw 7, and the sliding engagement between the guide plate 11 and the first guide groove 12. Specifically, rotating the adjusting screw 7 drives the moving base block 5 to move linearly along the first guide groove 12, and the guide plate 11 slides stably in the guide groove to maintain coaxiality and repeatability. This facilitates the sequential connection and switching of the gear pump 3 with flow meters 17 of different parameters. Under each flow meter 17 configuration, the device can synchronously record the corresponding flow data and perform joint analysis with parameters such as pressure measurement, temperature rise monitoring, and vibration detection. By conducting multiple comparative tests on the same device using flow meters 17 with different ranges or different measurement principles, the device can systematically obtain the flow response curves and performance characteristics of the gear pump 3 under various working conditions. This allows for in-depth analysis of the performance of the gear pump 3 and provides a reliable experimental basis and data support for service life assessment based on statistical or trend analysis methods.

[0029] The gear pump testing device designed in this scheme can achieve modular installation and rapid replacement of the testing module by adjusting the snap-fit ​​between the embedded slots 14 on both sides of the base 1 and the extraction testing component 15. The specific structure is as follows: the extraction testing component 15 uses a lifting frame 16 to support several sets of flow meters 17 with different parameters. The connection end of each flow meter 17 is quickly and sealed to the gear pump 3 under test and the testing pipeline through the connecting pipe head. This combination of snap-fit ​​and lifting structure allows the base 1 to quickly complete the installation or disassembly of the extraction testing component 15 when needed, which facilitates on-site cleaning, calibration and replacement of the flow meters 17, reducing test preparation and maintenance downtime. This structural design can also combine flow meters 17 with different ranges or different measurement principles as needed to adapt to gear pumps 3 of different specifications and working conditions, thereby improving the versatility, maintenance convenience and testing coverage of the testing device, and enhancing the ability to detect the performance parameters and life-related indicators of the gear pump 3.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gear pump life detection device comprising an adjustment base (1), characterized in that: The top of the adjustment base (1) is equipped with a detection switching component (2), and the top of the detection switching component (2) is also equipped with a gear pump (3). The detection switching component (2) includes an adjustment component (4), and a movable base block (5) is provided in the middle of the adjustment component (4). The adjusting component (4) includes two sets of side plates (6), which are respectively installed at both ends of the adjusting base (1). An adjusting screw (7) is also connected between the two sets of side plates (6) through a bearing.

2. The gear pump life testing device according to claim 1, characterized in that: A motor drive (8) is installed on the top of one end of the movable base block (5). The output end of the motor drive (8) is connected to the gear pump (3) via a transmission belt. A drive motor (9) is provided on the side of the motor drive (8) away from the motor drive (8).

3. The gear pump life testing device according to claim 2, characterized in that: The moving base block (5) has an adjustment screw hole (10) through the middle. The adjustment screw hole (10) is structurally matched with the adjustment screw (7). The adjustment screw hole (10) and the adjustment screw (7) are threaded together. Guide plates (11) are installed on both sides of the moving base block (5) near the adjustment screw hole (10).

4. The gear pump life testing device according to claim 3, characterized in that: The adjustment base (1) has a first guide groove (12) through the middle, which matches the structure of the moving base block (5). The first guide groove (12) and the guide plate (11) are in sliding fit. The adjustment base (1) has a second guide groove (13) through the top, which is connected to the first guide groove (12).

5. The gear pump life testing device according to claim 4, characterized in that: The adjustment base (1) has embedded slots (14) on both sides, and extraction detection components (15) are also provided on both sides of the adjustment base (1).

6. The gear pump life testing device according to claim 5, characterized in that: The extraction and detection component (15) includes a lifting frame (16). Several sets of flow meters (17) with different parameters are installed on one side of the lifting frame (16). On the side of the lifting frame (16) away from the flow meters (17), there are also multiple sets of embedded plates (18). The embedded plates (18) are structurally matched with the embedded slots (14). The embedded plates (18) and the embedded slots (14) are in a snap-fit ​​fit.