Four-ball friction testing machine for lubricating oil film detection

Abstract

The utility model relates to the technical field of lubricating oil film detection testing machines, and discloses a four-ball friction testing machine for lubricating oil film detection, which comprises a working table, a support frame and a test oil cup, a mounting box is mounted in a fixed seat, the test oil cup is positioned in the mounting box, an electric push rod is fixedly arranged at the bottom of the fixed seat, and the electric push rod is fixedly connected with the support frame. A positioning pad is fixedly arranged at one end, close to the test oil cup, of the telescopic column, and a spring I is sleeved outside the telescopic column. The long telescopic pipe on the telescopic column is driven to perform telescopic movement by stretching the spring I and utilizing the rebound resilience of the spring I, so that the positioning pad is pushed to cling to the outer wall of the test oil cup; four groups of positioning pads are arranged in the mounting box, so that the test oil cup is fixed in the mounting box, an electric push rod pushes a movable plate to move upwards through an output shaft, meanwhile, the movable plate drives a sliding block to slide in a limiting groove, the test oil cup is pushed to be in contact with a grinding roller, and convenience is provided for workers.

Description

TECHNICAL FIELD

[0001] The utility model relates to lubricating oil film detection test machine technical field especially relates to a kind of four-ball friction testing machines for lubricating oil film detection. BACKGROUND

[0002] Lubricating oil film refers to a thin film formed on the friction surface, mainly formed by the interaction of lubricating oil and metal surface, used to reduce friction and prevent wear, and the lubricating oil film is not formed by lubricating oil alone, but a composite film formed by the interaction of lubricating oil and metal surface under extremely high temperature and pressure. Four-ball friction testing machine is a device for evaluating the performance of lubricating oil, which evaluates its lubricating effect and wear resistance by simulating the performance of lubricating oil under friction conditions.

[0003] The existing four-ball friction testing machine (announcement number: CN215179547U) drives the screw rod to rotate by rotating the circular plate, and then moves the rough rod upward. The moving plug rod inserts the test part at the bottom to ensure normal use. However, during the detection of the friction force of the lubricating oil film, the equipment operation will produce vibration, which cannot effectively fix the test sample, and will affect the test effect. In addition, the staff still needs to manually rotate the circular plate to push the plug rod to insert the test part at the bottom, which makes the test operation not convenient enough. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a four-ball friction testing machine for lubricating oil film detection.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A four-ball friction testing machine for lubricating oil film detection, comprising a workbench, a support frame and a test oil cup, the support frame is fixedly provided with a rubber block, the top end of the rubber block is fixedly provided with a fixed seat, the fixed seat is provided with an installation box, the test oil cup is located inside the installation box, the bottom of the fixed seat is fixedly provided with an electric push rod, the inside of the fixed seat is movably provided with a movable plate, the electric push rod is fixedly connected to the bottom of the movable plate through an output shaft, the inside of the installation box is fixedly provided with a telescopic column, one end of the telescopic column close to the test oil cup is fixedly provided with a positioning pad, the outside of the telescopic column is sleeved with a spring one, the two ends of the spring one are fixedly connected to the inner wall of the installation box and the positioning pad respectively.

[0007] As a further scheme of the utility model, a limiting groove is formed in the fixed seat, and the rubber blocks are distributed at equal intervals at the bottom of the fixed seat.

[0008] As a further scheme of the utility model, the sliding block is movably arranged in the limiting groove, and the sliding block is fixedly connected with the movable plate.

[0009] As a further scheme of the utility model, the sliding block is movably arranged in the limiting groove, and the sliding block is fixedly connected with the movable plate.

[0010] As a further scheme of the utility model, the sliding block is movably arranged in the limiting groove, and the sliding block is fixedly connected with the movable plate.

[0011] As a further scheme of the utility model, the sliding block is movably arranged in the limiting groove, and the sliding block is fixedly connected with the movable plate.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、In use, the staff first places the test oil cup containing a sample in the mounting box, then makes the spring one generate deformation by stretching, and then releases the pulling of the spring one, utilizes the resilience of the spring one, drives the long telescopic pipe on the telescopic column to telescopically move, and then pushes the positioning pad to tightly adhere to the outer wall of the test oil cup, four positioning pads are arranged in the mounting box, and then the test oil cup is fixed in the mounting box, under the cooperation of the spring one and the telescopic column, the positioning pad is prevented from excessively clamping the test oil cup, and the test oil cup is provided with a buffering effect, and the stability of the test oil cup detection process is ensured.

[0014] 2、After the test oil cup is fixed on the mounting box, the staff can start the electric push rod, the electric push rod pushes the movable plate to move up through the output shaft, the movable plate drives the sliding block to slide in the limiting groove, under the cooperation of the sliding block and the limiting groove, the stability of the movable plate movement is ensured, under the action of the four springs two, the test oil cup is pushed to contact the grinding roller, the four springs two provide the test oil cup with a buffering effect, the stability of the test oil cup is strengthened, and convenience is provided for the staff. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic view of a four-ball friction tester for lubricating oil film detection is provided for the utility model;

[0016] Figure 2 A sectional structure schematic view of a four-ball friction tester for lubricating oil film detection is provided for the utility model;

[0017] Figure 3 The utility model provides a kind of four-ball friction testing machine's A place amplification structure structure schematic view for lubricating oil film detection;

[0018] Figure 4 The utility model provides a kind of four-ball friction testing machine's positioning pad and movable plate split structure schematic view for lubricating oil film detection;

[0019] In the drawing: 1, workbench surface;101, rubber block;102, fixed seat;103, installation box;104, positioning pad;105, spring one;106, telescopic column;2, support frame;201, power main body;202, grinding roller;3, test oil cup;301, limit slot;302, sliding block;303, movable plate;4, control screen;5, electric push rod;6, spring two. Specific embodiments

[0020] To make the technical means, creation features, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments.

[0021] In the description of the utility model, it should be explained that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like is the orientation or position relationship shown based on the drawing, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or suggestive of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance.

[0022] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected;It can be mechanical connection, can also be electrical connection;It can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0023] Reference Figures 1-4The utility model provides a kind of four-ball friction testing machine for lubricating oil film detection, including workbench 1, support frame 2 and test oil cup 3, support frame 2 is fixedly provided with rubber block 101, rubber block 101 top is fixedly provided with fixed seat 102, fixed seat 102 is installed with installation box 103, test oil cup 3 is located inside installation box 103, the bottom of fixed seat 102 is fixedly provided with electric push rod 5, the inside of fixed seat 102 is movably provided with movable plate 303, electric push rod 5 is fixedly connected the bottom of movable plate 303 by output shaft, installation box 103 is fixedly installed with telescopic column 106 in the inside, one end of telescopic column 106 close to test oil cup 3 is fixedly provided with locating pad 104, spring one 105 is sleeved on the outside of telescopic column 106, and the both ends of spring one 105 are fixedly connected respectively the inner wall of installation box 103 and locating pad 104.

[0024] When using, staff first places test oil cup 3 with sample in installation box 103, then by stretching spring one 105, makes spring one 105 generate deformation, then releases the pull spring one 105, utilizes the resilience of spring one 105, drives telescopic column 106 on long telescopic tube to carry out telescopic activity, and then pushes locating pad 104 close to the outer wall of test oil cup 3, four groups of locating pad 104 are provided in installation box 103, and then test oil cup 3 is fixed in installation box 103, under the cooperation of spring one 105 and telescopic column 106, avoid that locating pad 104 excessively clamps test oil cup 3, and simultaneously provide the buffering effect for test oil cup 3, guarantee the stability of test oil cup 3 detection process.

[0025] In the embodiment, the limiting groove 301 is formed in the fixed seat 102, and the rubber blocks 101 are distributed at equal intervals at the bottom of the fixed seat 102.

[0026] When using, after test oil cup 3 is fixed on installation box 103, staff can start electric push rod 5, so that electric push rod 5 pushes movable plate 303 to move up through output shaft, and movable plate 303 drives sliding block 302 to slide in limiting groove 301 under the cooperation of sliding block 302 and limiting groove 301, guarantee the stability of movable plate 303 movement, under the action of four groups of spring two 6, in turn, push test oil cup 3 to contact with grinding roller 202, and four groups of spring two 6 provide the buffering effect for test oil cup 3, strengthen the stability of test oil cup 3, provide convenience for staff.

[0027] In the embodiment, the sliding block 302 is movably arranged in the limiting groove 301, and the sliding block 302 is fixedly connected with the movable plate 303.

[0028] In use, when the electric push rod 5 pushes the movable plate 303 to move upwards, the movable plate 303 drives the sliding block 302 to slide along the limiting groove 301, and the sliding block 302 and the limiting groove 301 provide the limiting effect for the movable plate 303, and ensure the stability of the movable plate 303.

[0029] In the embodiment, the sliding blocks 302 are distributed at equal intervals in the fixed seat 102, and the spring 6 is fixedly installed between the movable plate 303 and the bottom of the mounting box 103.

[0030] In use, the four groups of springs 6 are fixedly installed between the movable plate 303 and the mounting box 103, and the four groups of springs 6 provide the buffering effect for the mounting box 103, so that the test oil cup 3 in the mounting box 103 is kept stable.

[0031] In the embodiment, the springs 6 are distributed at equal intervals at the upper end of the movable plate 303, the positioning pads 104 are distributed at equal intervals in the mounting box 103, the top of the support frame 2 is fixedly installed with the power body 201, the power body 201 is movably provided with the grinding roller 202, and the grinding roller 202 is located above the test oil cup 3.

[0032] In use, the test oil cup 3 is pushed to move upwards and is inserted with the grinding roller 202, so as to facilitate the detection of the sample in the test oil cup 3, and the test oil cup 3 is prevented from being separated from the grinding roller 202 during the detection process.

[0033] In the embodiment, the support frame 2 is fixedly installed at the upper end of the workbench 1, one side of the support frame 2 is provided with the control screen 4, and the control screen 4 is fixedly installed on the workbench 1.

[0034] In use, the four groups of rubber blocks 101 are arranged at the bottom of the fixed seat 102, the four groups of rubber blocks 101 provide the supporting effect for the fixed seat 102, and the rubber blocks 101 have elasticity, which provides the buffering effect for the fixed seat 102 and ensures the stability of the support.

[0035] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: the staff first places the test oil cup 3 containing a sample in the installation box 103, then pulls the spring one 105, makes the spring one 105 produce deformation, then loosens the pulling spring one 105, utilizes the resilience of the spring one 105, drives the long telescopic pipe on the telescopic column 106 to carry out telescopic activity, and then pushes the positioning pad 104 close to the outer wall of the test oil cup 3, four groups of positioning pads 104 are arranged in the installation box 103, and then the test oil cup 3 is fixed in the installation box 103, under the cooperation of the spring one 105 and the telescopic column 106, the positioning pad 104 is avoided to excessively clamp the test oil cup 3, and the test oil cup 3 is provided with the buffering effect, the stability of the test oil cup 3 detection process is guaranteed, after the test oil cup 3 is fixed on the installation box 103, the staff can start the electric push rod 5, makes the electric push rod 5 push the movable plate 303 to move up through the output shaft, and the movable plate 303 drives the sliding block 302 to slide in the limiting groove 301, under the cooperation of the sliding block 302 and the limiting groove 301, the stability of the movable plate 303 movement is guaranteed, under the action of the four groups of spring two 6, the test oil cup 3 is pushed to contact the grinding roller 202, and the four groups of spring two 6 provide the test oil cup 3 with the buffering effect, and the stability of the test oil cup 3 is strengthened, and convenience is provided for the staff.

[0036] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.The skilled person in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A four-ball friction tester for detecting a lubricating oil film, comprising a worktable surface (1), a support frame (2), and a test oil cup (3), characterized in that: The support frame (2) is fixedly provided with a rubber block (101), the top end of the rubber block (101) is fixedly provided with a fixed seat (102), the fixed seat (102) is internally provided with a mounting box (103), the test oil cup (3) is located inside the mounting box (103), the bottom of the fixed seat (102) is fixedly provided with an electric push rod (5), the inside of the fixed seat (102) is movably provided with an activity board (303), the electric push rod (5) is fixedly connected to the bottom of the activity board (303) through an output shaft, the inside of the mounting box (103) is fixedly provided with a telescopic column (106), one end of the telescopic column (106) close to the test oil cup (3) is fixedly provided with a positioning pad (104), the outside of the telescopic column (106) is sleeved with a spring (105), and the two ends of the spring (105) are fixedly connected to the inner wall of the mounting box (103) and the positioning pad (104) respectively.

2. The four-ball friction tester for detecting a lubricating oil film according to claim 1, characterized by The fixed seat (102) is internally provided with a limiting groove (301), and the rubber block (101) is distributed at equal intervals at the bottom of the fixed seat (102).

3. The four-ball friction tester for detecting a lubricating oil film according to claim 2, characterized by The limiting groove (301) is movably provided with a sliding block (302), and the sliding block (302) is fixedly connected to the activity board (303).

4. The four-ball friction tester for detecting a lubricating oil film according to claim 3, characterized by The sliding block (302) is distributed at equal intervals inside the fixed seat (102), and the activity board (303) and the bottom of the mounting box (103) are fixedly provided with a spring (6).

5. The four-ball friction tester for detecting a lubricating oil film according to claim 4, characterized by The spring (6) is distributed at equal intervals at the upper end of the activity board (303), the positioning pad (104) is distributed at equal intervals inside the mounting box (103), the top of the support frame (2) is fixedly provided with a power body (201), the power body (201) is movably provided with a grinding roller (202), and the grinding roller (202) is located above the test oil cup (3).

6. The four-ball friction tester for detecting a lubricating oil film according to claim 1, characterized by The support frame (2) is fixedly installed at the upper end of the workbench top (1), one side of the support frame (2) is provided with a control screen (4), and the control screen (4) is fixedly installed on the workbench top (1).

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