CN202330199U - Frictional wear tester for realizing rotation and reciprocating motion by using crankshaft and connecting rod mechanism - Google Patents

Abstract

The utility model relates to a friction and wear testing machine which adopts a crank connecting rod mechanism to realize rotation and reciprocating motion. processing system. Compared with the prior art, the utility model uses a crank-link mechanism to realize rotation and reciprocating motion at the same time by using a motor, and evaluates the friction and wear performance of materials under different experimental pressure, temperature, speed and other conditions.

Description

A friction and wear testing machine that uses a crank-link mechanism to realize rotation and reciprocating motion

technical field

The utility model relates to a friction and wear test machine, in particular to a friction and wear test machine which adopts a crank connecting rod mechanism to realize rotation and reciprocating motion.

Background technique

In the prior art, the friction and wear testing machine can be applied to the friction and wear experiment in the form of rotating motion, and can also be applied to the friction and wear experiment in the form of reciprocating motion. However, in actual work, two kinds of friction and wear experiments are often required. machine, it will increase equipment investment. Patent 200420066416.5 uses a specially designed base and sample control device to realize the friction and wear test machine that rotates and reciprocates the same upper sample, but this test machine uses two motors to realize the integration of movement modes, which will give the equipment Maintenance brings trouble, and installation is greatly restricted. According to the research and development and market promotion requirements of new materials at home and abroad, this experimental machine strives to be simple to operate. It uses a motor to realize rotation and reciprocating motion at the same time, and designs a practical new friction and wear testing machine.

Utility model content

The purpose of this utility model is to overcome the defects of the above-mentioned prior art and to provide a kind of friction and wear performance evaluation material under different experimental pressure, temperature, speed and other conditions, which adopts crank linkage mechanism to realize rotation and reciprocating Wear testing machine.

The purpose of this utility model can be achieved through the following technical solutions:

A friction and wear testing machine that uses a crank-link mechanism to realize rotation and reciprocating motion, including a driving mechanism, a loading mechanism, an electrical control system, and a data acquisition and processing system.

The way to realize the rotation movement is that the drive mechanism uses the motor to drive the spindle to drive the turntable to rotate, the test piece of the test plate is placed on the turntable and fixed, and the lever sensor is fixed with the test piece. Vice, the friction signal is detected by the lever sensor and sent back to the computer for processing, so as to realize the friction and wear test in the form of rotational motion. The reciprocating motion is achieved by using the crank-link mechanism to realize the connection between the rotary disc and the slider. The rotary disc drives the slider to reciprocate on the guide rail through the connecting rod. The test piece under test is placed on the slider and fixed. The lever sensor The upper test piece is fixed, and the upper and lower test pieces contact to form a friction pair in the experiment. The friction signal is detected by the lever sensor and sent back to the computer for processing, so as to realize the friction and wear test in the form of reciprocating motion. The loading mechanism is loaded with weights, so that the experimental force is loaded vertically on the working surface of the sample. The mechanism is equipped with counterweights to balance the quality of other components in the loading system. The electrical control system is connected with the data acquisition system, and the reciprocating frequency of the main engine can be adjusted through special software, and at the same time, the signal of the electrical control system is collected and related curves are drawn to realize real-time data storage.

Further, the crank is provided with a plurality of pin holes for fixing the connecting rod with different radii of gyration, and the movement stroke of the reciprocating slider can be adjusted through the pin holes.

Further, the reciprocating slider has an oil discharge hole, and an oil retaining sleeve is arranged outside the rotating disc, and the oil pipe is used to supply oil to the lower test piece insert and the rotating disc, so as to realize oil lubrication under oil lubrication conditions. of friction and wear.

Further, the lower test piece insert on the reciprocating slider is equipped with a heating jacket, and the rotating disk is equipped with a heating jacket to realize friction and wear under heating conditions.

Compared with the prior art, the utility model uses a motor to realize rotation and reciprocating motion at the same time by using a crank-link mechanism, and evaluates the friction and wear performance of materials under different experimental pressure, temperature, speed and other conditions, and realizes the structure. Optimization and process simplicity.

Description of drawings

Fig. 1 is the structural representation of the utility model when rotating;

Fig. 2 is a schematic structural view of the utility model during reciprocating motion.

In the figure, 1 is the oil pump, 2 is the oil pipe, 3 is the counter weight, 4 is the lever bracket, 5 is the lever sensor, 6 is the weight plate, 7 is the upper test piece, 8 is the lower test piece, and 9 is the test piece Insert, 10 is the slide block, 11 is the guide rail, 12 is the weight plate, 13 is the upper test piece, 14 is the lower test piece, 15 is the rotary plate, 16 is the lever sensor, 17 is the lever bracket, 18 is the motor, 19 Be an oil pump, 20 is an oil pipe, 21 is a counter weight, 22 is a connecting rod, and 23 is a crank.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example 1

A friction and wear testing machine that uses a crank-link mechanism to achieve rotation and reciprocating motion, including a driving mechanism, a loading mechanism, an electrical control system, and a data acquisition and processing system. It consists of an oil pump 1, an oil pipe 2, a counterweight weight 3, a lever bracket 4, and a lever. Sensor 5, weight plate 6, upper test piece 7, lower test piece 8, test piece insert 9, slider 10, guide rail 11, weight plate 12, upper test piece 13, lower test piece 14, rotary plate 15, Lever sensor 16, lever support 17, motor 18, oil pump 19, oil pipe 20, counterweight weight 21, connecting rod 22 forms.

Among them, the schematic diagram of the rotational friction and wear test is shown in Fig. 1 . The upper test piece 13 is fixed, the lower test piece 14 is fixed on the rotary disk 15, the counterweight weight 21 balances the quality of the components in the loading system, and then the weight disk 12 is loaded with weights, and the driving mechanism uses the motor 18 to drive the main shaft to drive the rotary disk 15 During the rotation, the upper test piece 13 and the lower test piece 14 contact to form a friction pair in the experiment, and the friction signal is detected by the lever sensor 16 and sent back to the computer for processing, so as to realize the friction and wear test in the form of rotational motion.

Example 2

A friction and wear testing machine that uses a crank-link mechanism to achieve rotation and reciprocating motion, including a driving mechanism, a loading mechanism, an electrical control system, and a data acquisition and processing system. It consists of an oil pump 1, an oil pipe 2, a counterweight weight 3, a lever bracket 4, and a lever. Sensor 5, weight plate 6, upper test piece 7, lower test piece 8, test piece insert 9, slider 10, guide rail 11, weight plate 12, upper test piece 13, lower test piece 14, rotary plate 15, Lever sensor 16, lever support 17, motor 18, oil pump 19, oil pipe 20, counterweight weight 21, connecting rod 22, crank 23 constitute.

The friction and wear testing machine using the crank-link mechanism to realize rotation and reciprocating motion is performing a reciprocating friction and wear test schematic diagram, as shown in FIG. 2 . The upper test piece 7 is fixed, the lower test piece 8 is fixed on the test piece insert 9, the test piece insert 9 is fixed on the slider 10, the counterweight 3 balances the mass of the components in the loading system, and then the weight plate 6 is loaded The weight, the drive mechanism uses the motor 18 to drive the main shaft to drive the crank 23 to rotate, and the crank 23 drives the slider 10 to realize reciprocating motion on the guide rail 11 through the connecting rod 22. In the experiment, the upper test piece 7 and the lower test piece 8 contact to form a friction pair. The lever sensor 5 detects the friction signal and sends it back to the computer for processing, so as to realize the friction and wear test in the form of reciprocating motion.

In the friction and wear experiment, there are mainly dry friction and friction under oil lubrication conditions. There is an oil discharge hole on the reciprocating slider 10, and an oil retaining sleeve is arranged outside the rotating rotary disc 15. The oil pump 1 and The oil pipe 2 is used to supply oil to the surface of the test piece 8 or the oil pump 19 and the oil pipe 20 are used to supply oil to the surface of the test piece 14, so as to realize the friction and wear test under the condition of oil lubrication.

In the friction and wear test, a heating jacket is added to the lower test piece insert 9, and a heating jacket is added to the outside of the rotating rotary disk 15 to realize the friction and wear test under heating conditions.

Claims (4)

1. The friction and wear testing machine that adopts the crank connecting rod mechanism to realize rotation and reciprocating motion is characterized in that the testing machine includes a driving mechanism, a loading mechanism, an electrical control system and a data acquisition and processing system, and the rotation of the testing machine passes through the motor of the driving mechanism The drive spindle drives the turntable to rotate, the test piece on the turntable is fixed on the turntable, and the lever sensor is fixed with the test piece. In the experiment, the test plate and the test piece are in contact to form a friction pair, and the friction signal is detected by the lever sensor. And it is processed by the computer to realize the friction and wear test in the form of rotating motion; the reciprocating motion adopts the crank-link mechanism to realize the connection between the rotary disc and the reciprocating slider, and the rotary disc drives the reciprocating slider to reciprocate on the guide rail through the connecting rod. The test piece under test is fixed on the reciprocating slide block, the upper test piece is fixed on the lever sensor, the upper test piece is in contact with the lower test piece to form a friction pair, and the friction signal is detected by the lever sensor and sent by Computer processing to realize the friction and wear test in the form of reciprocating motion; the loading mechanism uses weights to load, so that the experimental force is vertically loaded on the working surface of the sample, and the loading mechanism is equipped with counterweights to balance other components in the loading system Quality: the electrical control system is connected to the data acquisition system, the reciprocating frequency of the main engine is adjusted through software, the signals of the electrical control system are collected and related curves are drawn to realize real-time storage of data. 2. The friction and wear testing machine that uses a crank-link mechanism to realize rotation and reciprocating motion according to claim 1, wherein the crank-link mechanism is provided with a plurality of fixed connecting rods with different gyration radii. The pin hole is used to adjust the movement stroke of the reciprocating slider through the pin hole. 3. The friction and wear testing machine that uses a crank-link mechanism to realize rotation and reciprocating motion according to claim 1, wherein the reciprocating slider is provided with an oil discharge hole, and the rotating disc is provided with a The oil retaining sleeve uses an oil pipe to supply oil to the insert and the rotating disc of the tested piece. 4. The friction and wear testing machine that uses a crank-link mechanism to realize rotation and reciprocating motion according to claim 3, wherein a heating jacket is provided on the insert of the tested test piece, and the rotating The disc jacket is equipped with a heating jacket.

Images