CN203824855U - Multifunctional abrasion tester - Google Patents

Abstract

The utility model discloses a multifunctional wear-resistant testing machine, which comprises a base, a pulley, a pulley, a console, a driving device, a friction device and a test bench. The driving device includes a motor and a gap transmission device, and the gap transmission device includes The cam is driven by the motor, and the driven wheel is arranged on the top of the cam to cooperate with the cam. The cam is installed on the base through the bracket, and the friction device is rotatably connected to the bracket through the rocker arm. A pull rod is fixed in the middle of the driven wheel, and the pull rod is installed on the The rocking arm can move back and forth relative to the rocking arm, and the locking screw for fixing the pull rod is installed on the rocking arm. With this structure, when the driven wheel is detached from the cam, the friction device is always in contact with the test piece, which can realize continuous wear test. Break away from the test piece, sometimes press the test piece, so as to realize the intermittent wear test.

Description

A Multifunctional Abrasion Tester

technical field

The utility model relates to the technical field of testing equipment, in particular to a multifunctional wear-resistant testing machine.

Background technique

The coating on the surface of electronic products can not only protect the product from wear, but also beautify the product. Therefore, when designing electronic products, people often need to test the wear resistance of the coating on the surface. However, the traditional wear testing machine can only The continuous wear test has a single function, and the intermittent wear test cannot be performed on the tested object, which has certain test limitations.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a multifunctional wear-resistant testing machine capable of performing intermittent wear tests on the measured object.

The technical scheme that the utility model solves its technical problem adopts is:

A multi-functional wear-resistant testing machine, comprising a base, a pulley, a take-up wheel, a console, a driving device, a friction device and a test bench, the release pulley and the take-up pulley are respectively arranged on both sides of the base, and the The console is arranged on the upper end surface of the base, the friction device is arranged above the base and on the side close to the unwinding pulley, the driving device is arranged between the take-up pulley and the friction device, and the test bench is located on the friction The bottom of the device is connected to the base. The driving device includes a motor and a gap transmission device driven by the motor. The gap transmission device includes a cam driven by the motor and a driven wheel arranged above the cam to cooperate with the cam. The cam passes through the bracket Installed on the base, the friction device is rotatably connected to the bracket through the rocker arm. A pull rod is fixed in the middle of the driven wheel. The pull rod is installed on the rocker arm and can move back and forth relative to the rocker arm. There are locking screws to secure the tie rods.

As an improvement of the above technical solution, the friction device includes a vertical shaft movably connected with the rocker arm and a guide block connected with the lower part of the vertical shaft, and a first screw for fixing the vertical shaft is provided at one end of the rocker arm, and the vertical shaft The upper part of the shaft is covered with a copper sleeve, and the side end of the copper sleeve is provided with a second screw for fixing the vertical shaft. The copper sleeve and the guide block are respectively located on the upper and lower sides of the rocking arm and are respectively arranged between them There are a first spring and a second spring, and both the first spring and the second spring are sheathed on the vertical shaft.

Further, a support part is provided in the middle of the guide block, and a through hole for connecting the vertical shaft is opened on the support part, and the guide block is hollowed out on both sides of the support part, and rotatable friction parts are movably connected in the hollow part. With guide rod.

Further, a rotatable friction wheel is movably connected to the bottom end of the vertical shaft, and a rubber ring is provided on the friction wheel sleeve.

Further, the bottom of the test bench is connected with a lifting device that can adjust the height of the test bench. The lifting device includes a support shaft that is fixedly connected to the bottom of the test bench, an outer cylinder that is sleeved outside the support shaft and is fixedly connected to the base, and a screw connection. An adjustment bolt for fixing the support shaft at the side end of the outer cylinder.

Further, the driving device also includes a driving roller and a driven roller installed on the bracket, the driven roller is attached to the driving roller, the output shaft of the motor is connected to the main shaft of the driving roller through a synchronous belt mechanism, and the The main shaft of the driving roller is connected with the main shaft of the driven wheel through a gear mechanism.

The beneficial effects of the utility model are: before the testing work of the utility model, the friction belt roll is loaded into the unwinding pulley first, and then the friction belt is bypassed in turn by the friction device and the driving device, and the friction belt coming out of the driving device is rolled into the take-up wheel again. Then place the test piece on the test bench and fix it. When performing continuous wear test, you need to pull the pull rod on the rocker arm forward to make the driven wheel break away from the cam, and fix the pull rod with locking screws. , at this time, the friction device is always in contact with the test piece, and the friction belt is driven by the driving device to carry out continuous wear test on the test piece. When performing intermittent wear test, it is necessary to push back the pull rod on the rocker arm so that the driven wheel and the cam are in a cooperating state, and fix the pull rod with locking screws. At this time, start the motor, and the motor drives the cam to rotate. The moving wheel cooperates to make the rocking arm swing up and down around the bracket, and the rocking arm drives the friction device, so that the friction device sometimes separates from the test piece, sometimes presses against the test piece, and finally realizes the intermittent wear test of the test piece.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a schematic diagram of the installation structure of the utility model;

Figure 2 is an enlarged view of A in Figure 1;

Fig. 3 is a schematic structural view of the lifting device in the present invention.

Detailed ways

Referring to Fig. 1 to Fig. 3, a kind of multifunctional wear-resisting testing machine of the present utility model comprises base 1, unwinding pulley 2, take-up pulley 3, console 4, driving device 5, friction device 6 and test bench 7, The unwinding pulley 2 and the take-up pulley 3 are respectively arranged on both sides of the base 1, the console 4 is arranged on the upper surface of the base 1, and the friction device 6 is arranged on the top of the base 1 and is located near the unwinding pulley. 2, the driving device 5 is arranged between the take-up pulley 3 and the friction device 6, the test bench 7 is located below the friction device 6 and connected to the base 1, the driving device 5 includes a motor 51 and is composed of The gap transmission device driven by the motor 51, the gap transmission device includes a cam 54 driven by the motor 51, and a driven wheel 55 that is arranged above the cam 54 and cooperates with the cam 54, and the cam 54 is installed on the base 1 through a bracket 50. The friction device 6 is rotatably connected to the bracket 50 through the rocking arm 60. A pull rod 56 is fixed in the middle of the driven wheel 55. The pull rod 56 is mounted on the rocking arm 60 and can move back and forth relative to the rocking arm 60. The rocking arm 60 A locking screw 57 for fixing the pull rod 56 is installed on it. When the utility model is used, the friction belt reel is first loaded into the unwinding wheel 2, wherein the friction belt reel can rotate flexibly relative to the unwinding wheel 2, and then the friction belt is sequentially bypassed by the friction device 6 and the driving device 5, from the driving device 5. The friction belt that comes out is rewound in the take-up pulley 3, and then the test piece is placed on the test bench 7 and fixed. When performing a continuous wear test, the pull rod 56 on the rocking arm 60 needs to be pulled out forward. The driven wheel 55 is detached from the cam 54, and the pull rod 56 is fixed with the locking screw 57. At this time, the friction device 6 is always in contact with the test piece, and the friction belt is driven by the driving device 5 to perform continuous wear tests on the test piece. When performing intermittent wear test, the pull rod 56 on the rocker arm 60 needs to be pushed back, so that the driven wheel 55 and the cam 54 are in a mated state, and the pull rod 56 is fixed with the locking screw 57. At this time, the motor 51 is started, and the motor 51 drives the cam 54 to rotate, and the cam 54 cooperates with the driven wheel 55 to make the rocking arm 60 swing up and down around the bracket 50, and the rocking arm 60 drives the friction device 6, so that the friction device 6 sometimes separates from the test piece and sometimes presses against the test piece, finally realizing the test Intermittent abrasion testing of parts. the

In this embodiment, the friction device 6 includes a vertical shaft 61 movably connected to the swing arm 60 and a guide block 62 connected to the lower part of the vertical shaft 61. One end of the swing arm 60 is provided with a first Screw 641, the upper part of the vertical shaft 61 is covered with a copper sleeve 63, the side end of the copper sleeve 63 is provided with a second screw 642 for fixing the vertical shaft 61, and the copper sleeve 63 and the guide block 62 are respectively located on the rocking A first spring 651 and a second spring 652 are respectively arranged on the upper and lower sides of the arm 60 and between the swing arm 60 , and both the first spring 651 and the second spring 652 are sleeved on the vertical shaft 61 . Preferably, a support portion 621 is provided in the middle of the guide block 62, and a through hole for connecting the vertical shaft 61 is opened on the support portion 621, and the guide block 62 is hollowed out on both sides of the support portion 621 and inside the hollow portion A rotatable friction belt guide rod 66 is movably connected. During operation, the friction belt is first introduced from the friction belt guide rod 66 on the guide block 62 near the side of the pulley 2 and passed through the guide block 62, and then moves away from the guide block 62 after abutting against the bottom end of the vertical shaft 61. The friction band guide bar 66 on pulley 2 side leads out, and two friction band guide bars 66 play a guiding role to the friction band, guarantee that the bottom end of the vertical shaft 61 abuts with the friction band and presses the friction band. After the test piece is fixed on the test bench 7, the height of the vertical shaft 61 is adjusted up and down by loosening the first screw 641 and the second screw 642, so that the bottom end of the vertical shaft 61 presses against the test piece. At this time, due to the first spring 651 and the second spring 652, so that the vertical shaft 61 always maintains a downward pressure, so that the friction band is tightly located between the bottom end of the vertical shaft 61 and the test piece, and then tighten the first screw 641 and the second screw 642 That's it.

In this embodiment, the bottom end of the vertical shaft 61 is movably connected with a rotatable friction wheel 67, and the friction wheel 67 is sleeved with a rubber ring. The friction wheel 67 is mounted on the bottom of the vertical shaft 61, and is used to press the friction belt during the test. A rubber ring is set on it, which can effectively reduce the wear of the friction belt and help the friction wheel 67 to press the friction belt.

In this embodiment, the bottom of the test bench 7 is connected with a lifting device 8 that can adjust the height of the test bench 7. The lifting device 8 includes a support shaft 81 fixedly connected to the bottom end of the test bench 7, sleeved outside the support shaft 81 and An outer cylinder 82 fixedly connected to the base 1 and an adjusting bolt 83 screwed to the side end of the outer cylinder 82 for fixing the support shaft 81 . When adjusting the height of the test bench 7, you only need to loosen the adjusting bolt 83, then slide the support shaft 81 up and down according to the volume of the test piece, adjust it to the optimum height position, and then tighten the adjusting bolt 83. The utility model can freely adjust the height of the test bench 7 through the lifting device 8, and is suitable for wear resistance tests of test pieces of different sizes, and has a wide test range and strong practicability.

In this embodiment, the driving device 5 also includes a driving roller 52 and a driven roller 53 mounted on the bracket 50, the driven roller 53 is attached to the driving roller 52, and the output shaft of the motor 51 is connected to the driving roller. The main shaft of 52 is connected by synchronous belt mechanism, and the main shaft of described driving roller 52 is connected with the main shaft of driven wheel 55 by gear mechanism. Before starting the test, pass the friction belt between the driving roller 52 and the driven roller 53. During the test, the motor 51 drives the driving roller 52 to rotate through the synchronous belt mechanism, and then the driving roller 52 drives the driven roller 53 to rotate through the gear mechanism , so that the synchronous reverse rotation between the driving roller 52 and the driven roller 53 is realized, and the friction belt can be driven to rotate through the synchronous reverse rotation between the driving roller 52 and the driven roller 53 .

Certainly, the present utility model may have other structural deformations besides the above-mentioned embodiments, and these equivalent technical solutions shall also be within the protection scope thereof.

Claims (6)

1. A multifunctional wear-resistant testing machine, including a base (1), a pulley (2), a pulley (3), a console (4), a driving device (5), a friction device (6) and a test platform (7), the unwinding wheel (2) and the take-up wheel (3) are respectively arranged on both sides of the base (1), the console (4) is arranged on the upper surface of the base (1), and the The friction device (6) is arranged above the base (1) and on the side close to the unwinding pulley (2), and the driving device (5) is arranged between the take-up pulley (3) and the friction device (6), The test bench (7) is located below the friction device (6) and connected to the base (1), characterized in that: the drive device (5) includes a motor (51) and a gap transmission device driven by the motor (51) , the gap transmission device includes a cam (54) driven by a motor (51), and a driven wheel (55) arranged above the cam (54) to cooperate with the cam (54), and the cam (54) is installed through a bracket (50) On the base (1), the friction device (6) is rotatably connected to the bracket (50) through the swing arm (60), and a pull rod (56) is fixed in the middle of the driven wheel (55), and the pull rod ( 56) Installed on the rocking arm (60) and can move back and forth relative to the rocking arm (60). The rocking arm (60) is equipped with a locking screw (57) for fixing the pull rod (56). 2. A multifunctional wear-resistant testing machine according to claim 1, characterized in that: the friction device (6) includes a vertical shaft (61) movably connected with the swing arm (60) and a vertical shaft (61) ) is connected to the lower part of the guide block (62), one end of the swing arm (60) is provided with a first screw (641) for fixing the vertical shaft (61), and the upper part of the vertical shaft (61) is covered with a copper sleeve (63), the side end of the copper sleeve (63) is provided with a second screw (642) for fixing the vertical shaft (61), and the copper sleeve (63) and the guide block (62) are respectively located on the rocker arm (60 ) and between the rocker arm (60) and the first spring (651) and the second spring (652), the first spring (651) and the second spring (652) are sleeved on the vertical axis (61) on. 3. A multi-functional wear-resistant testing machine according to claim 2, characterized in that: the middle part of the guide block (62) is provided with a support part (621), and the support part (621) is opened for connecting The through hole of the vertical shaft (61), the guide block (62) is hollowed out on both sides of the support part (621), and a rotatable friction belt guide rod (66) is movably connected in the hollowed out part. 4. A multifunctional wear-resistant testing machine according to claim 2 or 3, characterized in that: the bottom end of the vertical shaft (61) is movably connected with a rotatable friction wheel (67), and the friction wheel (67) is sleeved with rubber ring. 5. A multifunctional wear-resistant testing machine according to claim 1, characterized in that: the bottom of the test bench (7) is connected with a lifting device (8) that can adjust the height of the test bench (7), and the lifting device (8) Including the support shaft (81) fixedly connected to the bottom end of the test bench (7), the outer cylinder (82) sleeved outside the support shaft (81) and fixedly connected to the base (1) and screwed to the outer cylinder (82) Adjusting bolts (83) for fixing the support shaft (81) at the side end. 6. A multifunctional wear-resistant testing machine according to claim 1, characterized in that: the driving device (5) also includes a driving roller (52) and a driven roller (53) mounted on the bracket (50) ), the driven roller (53) is attached to the driving roller (52), the output shaft of the motor (51) is connected to the main shaft of the driving roller (52) through a timing belt mechanism, and the driving roller (52) The main shaft and the main shaft of the driven wheel (55) are connected through a gear mechanism.