Friction testing device for aviation lubricating oil

Abstract

The utility model discloses an aviation lubricating oil friction testing device, and belongs to the field of lubricating oil performance testing. The aviation lubricating oil friction testing device comprises a workbench, an electric push rod is arranged on the workbench, the output end of the electric push rod is fixedly connected with a pressure sensor, the aviation lubricating oil friction testing device further comprises a placing table fixedly connected to the workbench, the side wall of the placing table is fixedly connected with a guide cylinder, and the guide cylinder is fixedly connected with the pressure sensor. A scraping plate is slidably connected to the guide cylinder, the contact end of the scraping plate is attached to the inner wall of the placement table, and the working end of the pressure sensor faces the surface of the placement table; the driving part is used for driving the guide rod to move; lubricating oil on the placing table can be rapidly and conveniently cleaned, the time and energy for cleaning the lubricating oil are saved, the working efficiency is improved, and meanwhile the experiment period can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil performance testing, in particular to an aviation lubricating oil friction testing device. Background Art

[0002] Aviation lubricants are liquid or semi-solid lubricants used in various types of aircraft and aviation machinery and equipment to reduce friction and protect machinery and processed parts. They mainly play the roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering. In the process of lubricating oil production, it is necessary to test the lubricating effect, friction resistance and other parameters of the lubricating oil.

[0003] After searching, the Chinese patent publication number CN217278353U discloses a rolling lubricating oil friction testing device, including a base, a saddle is connected to the base through a Y-axis feed mechanism, the saddle is connected to a workbench, the workbench is connected to a driven shaft through a bearing, a friction turntable is fixedly connected to the top of the driven shaft, a driving motor is provided at one end of the saddle, and the output shaft on the driving motor and the driven shaft are connected by a transmission belt; support columns and columns are connected to both ends of the base respectively, top plates are installed on the upper ends of the support columns and the columns, an electric telescopic rod is provided in the middle of the top plate, a bellows sensor is connected to the bottom of the electric telescopic rod, a friction member is connected to the bottom of the bellows sensor, a ball is rotatably provided at the bottom of the friction member, and the ball rolls against the friction turntable.

[0004] However, in actual use, it was found that after the lubricating oil test was completed, it was not convenient to clean the lubricating oil on the friction turntable quickly and conveniently, which reduced the experimental efficiency and extended the experimental period. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that after the lubricating oil detection is completed, it is not convenient to quickly and conveniently clean the lubricating oil on the friction turntable, resulting in reduced experimental efficiency and prolonged experimental cycle, and proposes an aviation lubricating oil friction testing device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An aviation lubricating oil friction testing device comprises a workbench, on which an electric push rod is arranged, and an output end of the electric push rod is fixedly connected to a pressure sensor, and further comprises: a placement table fixedly connected to the workbench, wherein a guide cylinder is fixedly connected to a side wall of the placement table, a scraper is slidably connected to the guide cylinder, the contact end of the scraper is in contact with the inner wall of the placement table, and the working end of the pressure sensor faces the surface of the placement table; and a driving part, which is used to drive the guide rod to move.

[0008] In order to facilitate the movement of the scraper, preferably, the driving part also includes: a guide rod, which is slidably connected to the guide cylinder, wherein a piston is provided at one end of the guide rod, the piston fits against the inner wall of the guide cylinder, and the scraper is fixedly connected to the other end of the guide rod; a booster cylinder fixedly connected to the workbench, wherein a booster rod is slidably connected to the booster cylinder, one end of the booster rod is fixedly connected to the output end of the electric push rod, and a piston is provided at the other end of the booster rod, the piston fits against the inner wall of the booster cylinder, and the booster cylinder is connected to the guide cylinder through a pipeline.

[0009] In order to facilitate the movement of the pressure sensor, further, a mounting plate is fixedly connected to the output end of the electric push rod, and the pressure sensor is fixedly connected to the bottom of the mounting plate.

[0010] In order to facilitate the cleaning and scraping of the lubricating oil on the scraper, further, the placement table is fixedly connected to a mounting box, the mounting box is rotatably connected to a reciprocating screw, a movable block is threadedly connected to the reciprocating screw, and the movable block is fitted with the inner wall of the mounting box, and a cleaning plate is fixedly connected to the bottom of the movable block, and the cleaning plate cooperates with the scraper.

[0011] In order to facilitate the control of the cleaning plate, preferably, a contact rod is fixedly connected to the scraper, a groove is opened on the installation box, a push switch is arranged in the groove, and the contact rod cooperates with the push switch.

[0012] In order to increase the service life of the scraper, preferably, the scraper is made of stainless steel.

[0013] Compared with the prior art, the utility model provides an aviation lubricating oil friction test device, which has the following beneficial effects:

[0014] 1. The aviation lubricant friction test device can quickly and conveniently clean the lubricant on the platform with a scraper, saving time and energy for cleaning the lubricant, improving work efficiency and reducing the experimental cycle;

[0015] 2. The aviation lubricating oil friction testing device can make the movable block drive the cleaning plate to perform secondary cleaning on the surface of the scraper, thereby scraping off the lubricating oil on the surface of the scraper, improving the cleanliness of the scraper, and preventing the lubricating oil from corroding the surface of the scraper, thereby extending the service life of the scraper and reducing maintenance costs.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model can quickly and conveniently clean the lubricating oil on the placement table, saving time and energy for cleaning the lubricating oil, improving work efficiency and reducing the experimental cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a workbench for an aviation lubricating oil friction testing device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a placement table for an aviation lubricating oil friction test device proposed in the utility model;

[0019] Figure 3 This is a structural schematic diagram of a driving unit of an aviation lubricating oil friction testing device proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the structure inside the installation box of an aviation lubricating oil friction testing device.

[0021] In the figure: 1. workbench; 2. electric push rod; 201. mounting plate; 3. booster cylinder;

[0022] 301, booster rod; 4, placement table; 5, guide cylinder; 501, guide rod; 6, scraper;

[0023] 601, contact rod; 7, mounting box; 701, groove; 8, reciprocating screw rod; 801, movable block; 9, cleaning plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] Example:

[0027] Reference Figure 1-Figure 4An aviation lubricant friction test device includes a workbench 1, on which an electric push rod 2 is arranged through a two-axis moving platform, which can make the electric push rod 2 move laterally or longitudinally, and a mounting plate 201 is fixedly connected to the output end of the electric push rod 2, and a pressure sensor is also installed at the bottom of the mounting plate 201. The pressure sensor is a bellows sensor, which consists of a bellows, a sensor chip, a connecting circuit and other parts. In the aviation lubricant friction test, the bellows sensor can be used to measure parameters such as pressure and flow of aviation lubricant, and help monitor and control the experimental process.

[0028] In addition, please refer to Figure 3 A placing table 4 is also installed on the workbench 1, and a guide cylinder 5 is also installed on the side wall of the placing table 4, and a guide rod 501 is slidably connected to the guide cylinder 5, and a piston is provided at one end of the guide rod 501, and the piston fits with the inner wall of the guide cylinder 5, and then the scraper 6 is fixedly connected to the other end of the guide rod 501, and the contact end of the scraper 6 fits with the inner wall of the placing table 4, and a booster cylinder 3 is also installed on the workbench 1, and a booster rod 301 is slidably connected to the booster cylinder 3, and one end of the booster rod 301 is fixedly connected to the output end of the electric push rod 2, and a piston is provided at the other end of the booster rod 301, and the piston fits with the inner wall of the booster cylinder 3, and then the booster cylinder 3 is connected to the guide cylinder 5 through a pipeline.

[0029] Here, when the electric push rod 2 drives the pressure sensor to descend, the boost rod 301 will move downward synchronously. At this time, the boost rod 301 will transport the gas in the boost cylinder 3 to the guide cylinder 5. At this time, the guide rod 501 on the guide cylinder 5 will automatically retract to the inside, and at the same time drive the scraper 6 to return to its position. When the pressure sensor detection is completed and the lubricating oil needs to be cleaned, the electric push rod 2 is started to drive the pressure sensor to move upward. During the movement, the guide rod 501 will drive the scraper 6 to move outward, so that the scraper 6 can conveniently clean the lubricating oil inside the placement table 4, saving time and energy for cleaning the lubricating oil, improving work efficiency and reducing the experimental cycle.

[0030] In order to facilitate the secondary cleaning of the lubricating oil adhering to the scraper 6, please refer to Figure 2 and Figure 4 A mounting box 7 is fixedly connected to the placement table 4, and a reciprocating screw 8 is rotatably connected to the mounting box 7, which can be rotated by a motor, and a movable block 801 is threadedly connected to the reciprocating screw 8, and the movable block 801 is in contact with the inner wall of the mounting box 7, a cleaning plate 9 is fixedly connected to the bottom of the movable block 801, and the contact end of the cleaning plate 9 is in contact with the discharge end surface of the placement table 4.

[0031] When the scraper 6 moves to the outlet end of the placement table 4, it needs to be explained here that the displacement distance of the scraper 6 is exactly the same as the length of the placement table 4, and the scraper 6 and the outlet end surface of the placement table 4 are on the same plane, and a contact rod 601 is fixedly connected to the scraper 6, a groove 701 is opened on the installation box 7, and a push switch is arranged in the groove 701, and the push switch is electrically coordinated with the motor, and the motor can be controlled by pressing the switch. When the contact rod 601 is against the push switch, the motor starts, which will cause the motor to drive the reciprocating screw 8 to rotate. When the contact rod 601 leaves the push switch, the motor automatically cuts off the power, and then the movable block 801 drives the cleaning plate 9 to perform secondary cleaning on the surface of the scraper 6, and then the lubricating oil on the surface of the scraper 6 can be scraped off, thereby improving the cleanliness of the scraper 6, and at the same time preventing the lubricating oil from corroding the surface of the scraper 6, extending the service life of the scraper 6, and reducing maintenance costs.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An aviation lubricating oil friction testing device, comprising a workbench (1), on which an electric push rod (2) is arranged, and an output end of the electric push rod (2) is fixedly connected to a pressure sensor, characterized in that: Also includes: a placement table (4) fixedly connected to the workbench (1), The side wall of the placement platform (4) is fixedly connected with a guide cylinder (5), the guide cylinder (5) is slidably connected with a scraper (6), the contact end of the scraper (6) is in contact with the inner wall of the placement platform (4), and the working end of the pressure sensor faces the surface of the placement platform (4); The driving part is used to drive the guide rod (501) to move.

2. The aviation lubricating oil friction testing device according to claim 1, characterized in that: The driving unit further includes: A guide rod (501), wherein the guide rod (501) is slidably connected to the guide cylinder (5), Wherein, a piston is provided at one end of the guide rod (501), the piston is in contact with the inner wall of the guide cylinder (5), and the scraper (6) is fixedly connected to the other end of the guide rod (501); A booster cylinder (3) fixedly connected to the workbench (1), A boost rod (301) is slidably connected to the boost cylinder (3), one end of the boost rod (301) is fixedly connected to the output end of the electric push rod (2), and a piston is provided at the other end of the boost rod (301), the piston is in contact with the inner wall of the boost cylinder (3), and the boost cylinder (3) is connected to the guide cylinder (5) through a pipeline.

3. The aviation lubricating oil friction testing device according to claim 2, characterized in that: A mounting plate (201) is fixedly connected to the output end of the electric push rod (2), and the pressure sensor is fixedly connected to the bottom of the mounting plate (201).

4. The aviation lubricating oil friction testing device according to claim 1, characterized in that: The placement table (4) is fixedly connected to a mounting box (7), the mounting box (7) is rotatably connected to a reciprocating screw rod (8), the reciprocating screw rod (8) is threadedly connected to a movable block (801), and the movable block (801) is in contact with the inner wall of the mounting box (7), and a cleaning plate (9) is fixedly connected to the bottom of the movable block (801), and the cleaning plate (9) cooperates with the scraper (6).

5. The aviation lubricating oil friction testing device according to claim 4, characterized in that: The scraper (6) is fixedly connected with a contact rod (601), the installation box (7) is provided with a groove (701), a push switch is arranged in the groove (701), and the contact rod (601) cooperates with the push switch.

6. The aviation lubricating oil friction testing device according to claim 1, characterized in that: The scraper (6) is made of stainless steel.

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