A BUSS rubber testing device and testing method

Abstract

The present invention relates to a Buss rubber testing device and a testing method. The device comprises a workbench provided with a grooved track, a bearing and a motor fixed on the workbench through the grooved track, and a controller electrically connected to the motor; the motor is connected to the end of the test piece with the Buss at an angle, and the rubber ring on the Buss undergoes mechanical distortion during the connection, so that the device can test its ability to withstand mechanical distortion. The present invention can simulate the working environment of the Buss rubber when it is actually working on the air conditioner, and realize the detection of the ability of the Buss rubber accessories to withstand mechanical distortion.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a Buss rubber testing device and a testing method. Background Art

[0002] The crossflow fan blades for air conditioners are important components of air conditioners. When the crossflow fan blades are installed on the whole machine, the motor shaft matched with the crossflow fan blades and the shaft welded on the crossflow fan blades are not necessarily completely in a straight line, and there will be a certain error value. At this time, the crossflow fan blades need to use flexible parts such as the rubber-equipped buss to adapt to the impact caused by the error. If the rubber parts on the buss have weak ability to withstand mechanical distortion, the rubber parts will crack or even fall off, making the entire crossflow fan blade unusable.

[0003] If the ability of Buss rubber parts to withstand mechanical distortion cannot be tested, the service life of the crossflow impellers cannot be guaranteed. However, there is currently no equipment that can simulate actual conditions to test Buss rubber parts. Summary of the invention

[0004] To solve the above problems, according to a first aspect of the present invention, there is provided a Buss rubber testing device, comprising a workbench provided with a grooved track, a bearing and a motor fixed on the workbench via the grooved track, and a controller electrically connected to the motor; the motor is connected to the end of the test piece with the Buss at an angle, and when connected, the rubber ring on the Buss is mechanically twisted, so that the device can test its ability to withstand mechanical twisting.

[0005] Furthermore, the grooved tracks are divided into two groups, namely a first grooved track and a second grooved track which are perpendicular to each other, and each group of grooved tracks includes two grooves which are parallel to each other.

[0006] Furthermore, the two sets of grooved tracks include a first grooved track running from front to back, and a second grooved track running from left to right; the motor is arranged on the first grooved track; the bearing is arranged on the second grooved track, so that the bearing and the motor can move along the grooved tracks respectively.

[0007] Furthermore, the motor shaft of the motor points to the left side of the workbench, the motor shaft is perpendicular to the first groove track, and is connected to one end of the test piece through a motor bus connector, and the end is provided with a bus including a rubber ring and a metal shaft; during installation, the rubber ring is mechanically twisted.

[0008] Furthermore, the motor is an adjustable speed motor.

[0009] Furthermore, one end of the motor bus connector is a shaft sleeve, which is sleeved outside the motor shaft of the motor and tightened; the other end is a coupling, which is connected to the shaft of the test piece.

[0010] Furthermore, the cross section of the coupling can be matched and installed with the metal shaft of Buss.

[0011] Furthermore, the bearing includes a mounting hole and a bearing base arranged in the middle; the mounting hole enables the other end of the crossflow fan blade to be fixed on the bearing; the bottom of the bearing seat is fixed to the groove of the second grooved track by a base screw and a nut.

[0012] Furthermore, the diameter of the base screw at the bottom of the bearing seat is smaller than the width of the groove.

[0013] Furthermore, the controller is electrically connected to the motor, and is provided with a tachometer, a timer, a switch, a speed regulator, a start button and a stop button.

[0014] Furthermore, the part to be tested is a crossflow blade.

[0015] A second aspect of the present invention provides a Buss rubber testing method, wherein the Buss rubber testing device is used to connect the end of the test piece with the Buss to a motor at an angle, so that the rubber ring on the Buss is mechanically twisted, thereby testing the mechanical twisting force of the test piece.

[0016] Further, the following steps are included:

[0017] S1. Arrange the test pieces on the workbench;

[0018] S2. Install the test piece between the bearing and the motor to cause mechanical distortion of the rubber ring on the bus of the test piece;

[0019] S3. Set the motor speed and test time through the controller to test the rubber ring's ability to withstand mechanical distortion.

[0020] Furthermore, the part to be tested is a crossflow fan blade, and the arrangement method of step S1 is: the crossflow fan blade and the two sets of grooved tracks on the workbench are arranged to form a right triangle, with the central axis of the crossflow fan blade as the hypotenuse c of the right triangle, and the two sets of grooved tracks as the two right-angled sides of the right triangle, which are a and b respectively; the first grooved track is the right-angled side a, and its length is L1; the second grooved track is the right-angled side b, and its length is L2.

[0021] Furthermore, the installation method of step S2 is: determine the angle between the axis of the crossflow fan blade and the motor, which is θ, that is, the angle between the hypotenuse c and the right-angled side a; bend the rubber ring of the Booth and the metal shaft, and connect the metal shaft to the motor shaft of the motor through the motor Booth connector; calculate the lengths L1 and L2 of the two right-angled sides of the right triangle according to the angle θ and the hypotenuse c, and fix the position of the bearing and the motor on the grooved track by adjusting the base screws and nuts according to the lengths of L1 and L2; at the same time, adjust the angle between the bearing and the second grooved track.

[0022] Furthermore, the test method of step S3 is: turn on the switch on the controller, set the motor speed and test time through the tachometer and timer, press the start button to start the test; when the test time is reached, press the stop button to stop the test.

[0023] The benefits of the present invention include at least:

[0024] (1) The present invention can simulate the working environment of the Buss rubber when it is actually working on the air conditioner, realize the detection of the ability of the Buss rubber accessories to withstand mechanical distortion, and effectively prevent the Buss rubber accessories from cracking and falling off during operation.

[0025] (2) The motor bus connector 4 of the present invention extends the motor shaft of the motor 3, thereby preventing the impeller of the crossflow blade 7 from touching the body of the motor 3 due to excessive angular deviation caused by the installation position of the crossflow blade 7 being offset so that the axis thereof is not aligned with the axis of the motor 3.

[0026] (3) The detection method of the present invention has simple steps, so that the test results of the mechanical torsion resistance of the Buss rubber accessories can be detected intuitively and effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a planar structural diagram of the testing device of the present invention;

[0028] Figure 2 is a flow chart of the testing method of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the motor bus connector of the present invention;

[0030] Figure 4 is a longitudinal cross-sectional view of the bearing of the present invention;

[0031] Figure 5 It is a structural schematic diagram of one end of the crossflow fan blade to be tested with a Booth of the present invention;

[0032] Figure 6 A front view of the Booth of the present invention;

[0033] Figure 7 A schematic diagram of a panel of a controller of the present invention

[0034] The accompanying drawings are marked as follows:

[0035] 1- workbench; 21- first grooved track; 22- second grooved track; 3- motor; 4- motor bus connector; 41- bushing; 42- coupling; 5- bearing; 51- mounting hole; 52- bearing base; 53- base screw; 6- bus; 61- rubber ring; 62- metal shaft; 7- cross flow fan blade; 8- controller; 81- tachometer; 82- timer; 83- switch; 84- speed regulator; 85- start button; 86- stop button. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] See attached Figure 1 And attached Figure 3-7 A Buss rubber testing device comprises a workbench 1 provided with a grooved track, a bearing 5 and a motor 3 fixed on the workbench 1 through the grooved track, and a controller 8 connected to the motor; the motor 3 is connected to the end of the test piece with the buss 6 at an angle, and the rubber ring 61 on the buss 6 is mechanically twisted during the connection, so that the device can test its ability to withstand mechanical twisting. Therefore, the device can simulate the working environment of the Buss rubber when it is actually working on the air conditioner, so that its test results can be applied to actual work.

[0038] Preferably, the test piece is a crossflow blade 7 .

[0039] See attached Figure 1 There are two groups of grooved tracks on the workbench 1, namely a first grooved track 21 and a second grooved track 22 which are perpendicular to each other, and each group of grooved tracks includes two grooves which are parallel to each other; so that the bearing 5 and the motor 3 can be fixed on the workbench 1 through the grooved tracks.

[0040] See attached Figure 1 The two sets of grooved tracks include a first grooved track 21 running from front to back, and a second grooved track 22 running from left to right; the motor 3 is arranged on the first grooved track 21; the bearing 5 is arranged on the second grooved track 22, so that the bearing 5 and the motor 3 can move along the grooved tracks respectively.

[0041] See attached Figure 1 , Attachment Figure 3 And attached Figure 5 and 6The motor shaft of the motor 3 points to the left side of the workbench 1, and the motor shaft is perpendicular to the first grooved track 21. It is connected to one end of the crossflow fan blade 7 through the motor bus connector 4. The end is provided with a bus 6 including a rubber ring 61 and a metal shaft 62; during installation, the rubber ring 61 undergoes mechanical distortion, so that the test device can intuitively test the ability of the rubber ring 61 to withstand mechanical distortion.

[0042] See attached Figure 1 , Attachment Figure 3 And attached Figure 5 and 6 One end of the motor bus connector 4 is a sleeve 41, which is sleeved outside the motor shaft of the motor 3 and fastened by screws; the other end is a coupling 42, which is connected to the shaft of the crossflow fan blade 7; the motor bus connector 4 extends the motor shaft of the motor 3 to prevent the installation position of the crossflow fan blade 7 from being offset so that the axis thereof is not in a straight line with the shaft of the motor 3, and the impeller of the crossflow fan blade 7 touches the body of the motor 3 due to excessive angle offset.

[0043] See attached Figure 1 , Attachment Figure 3 And attached Figure 5 and 6 The cross section of the coupling 42 can be matched with the metal shaft 62 of the Buss 6 so that the shaft of the crossflow blade 7 is firmly connected to the motor Buss connector 4; so that the motor 3 can transmit power to the shaft of the crossflow blade 7 through the coupling 42, thereby driving it to rotate.

[0044] Preferably, the longitudinal section of the coupling 42 is "D"-shaped.

[0045] See attached Figure 1 And attached Figure 4 The bearing 5 includes a mounting hole 51 and a bearing base 52 provided in the middle; the mounting hole 51 enables the other end of the crossflow fan blade 7 to be fixed on the bearing 5; the bottom of the bearing base 52 is fixed to the groove of the second grooved track 22 by a base screw 53 and a nut, and the diameter of the base screw 53 is smaller than the width of the groove, so that when the base screw 53 is loosened, the bearing 5 can move left and right along the second grooved track 22 on the plane of the workbench 1, and the angle between the bearing 5 and the second grooved track 22 can be adjusted so that the mounting hole 51 can point to the motor shaft of the motor 3.

[0046] See attached Figure 1 And attached Figure 7 The controller 8 is electrically connected to the motor 3, and is provided with a tachometer 81, a timer 82, a switch 83, a speed regulator 84, a start button 85 and a stop button 86; so that the speed and test time of the motor 3 can be adjusted before the test.

[0047] Preferably, the motor 3 is an adjustable speed motor.

[0048] See attached Figure 1 , Attachment Figure 2 And attached Figure 7 In a second aspect of the present invention, a Buss rubber testing method using the above-mentioned testing device is provided. The method connects the end of the test piece with the Buss 6 to the motor 3 at an angle, so that the rubber ring 61 on the Buss 6 is mechanically twisted, thereby testing the mechanical twisting force of the test piece. The method comprises the following steps:

[0049] S1. Arrange the test piece on the workbench, where the test piece is a crossflow fan blade 7, and the arrangement is as follows: Arrange the crossflow fan blade 7 and the two sets of grooved tracks on the workbench 1 to form a right triangle, with the central axis of the crossflow fan blade 7 as the hypotenuse c of the right triangle, and the two sets of grooved tracks as the two right-angled sides of the right triangle, which are a and b respectively; the first grooved track 21 is the right-angled side a, and its length is L1; the second grooved track 22 is the right-angled side b, and its length is L2.

[0050] S2. Install the crossflow fan blade 7 between the bearing 5 and the motor 3. The installation method is as follows: determine the angle between the axis of the crossflow fan blade 7 and the motor 3, which is θ, that is, the angle between the hypotenuse c and the right-angled side a; bend the rubber ring 61 of the bus 6 and the metal shaft 62, and the metal shaft 62 is connected to the motor shaft of the motor 3 through the motor bus connector 4. Since the length of the hypotenuse c is a fixed value, after determining the angle θ, calculate the lengths L1 and L2 of the two right-angled sides of the right triangle, and fix the positions of the bearing 5 and the motor 3 on the grooved track by adjusting the base screw 53 and the nut according to the lengths of L1 and L2. At the same time, by adjusting the angle between the bearing 5 and the second grooved track 22, the mounting hole 51 can point to the motor shaft of the motor 3.

[0051] S3, testing the mechanical torsion resistance of the rubber ring 61, the testing method is: turn on the switch 83 on the controller 8, set the speed and test time of the motor 3 through the tachometer 81 and the timer 82, press the start button 85 to start the test; when the test time is reached, press the stop button 86 to stop the test.

[0052] After the test, the wear of the rubber ring 61 on the booth 6 is used to determine its ability to withstand mechanical distortion under the set angle θ, rotation speed and test time.

[0053] When the above-mentioned Buss rubber test method is applied, the mechanical torsion resistance of the Buss rubber parts can be obtained intuitively and effectively.

[0054] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A Buss rubber testing device, comprising a workbench (1) provided with a grooved track, a bearing (5) and a motor (3) fixed to the workbench (1) via the grooved track, and a controller (8) electrically connected to the motor; characterized in that: The motor (3) is connected to one end of the test piece with the booth (6) at an angle, and when connected, the rubber ring (61) on the booth (6) is mechanically twisted, so that the device can test its ability to withstand mechanical twisting; The grooved tracks are divided into two groups, namely a first grooved track (21) and a second grooved track (22) which are perpendicular to each other, and each group of grooved tracks includes two grooves which are parallel to each other; The two groups of grooved tracks include a first grooved track (21) running from front to back, and a second grooved track (22) running from left to right; the motor (3) is arranged on the first grooved track (21), the motor shaft of the motor (3) points to the left side of the workbench (1), and the motor shaft is perpendicular to the first grooved track (21); the bearing (5) is arranged on the second grooved track (22), so that the bearing (5) and the motor (3) can move respectively along the grooved tracks where they are located; The motor shaft of the motor (3) points to the left side of the workbench (1), is perpendicular to the first grooved track (21), and is connected to one end of the test piece through a motor-bus connector (4), and the end is provided with a bus (6) including a rubber ring (61) and a metal shaft (62); during installation, the rubber ring (61) is mechanically twisted; The motor (3) is a speed-adjustable motor; One end of the motor bus connector (4) is a shaft sleeve (41), which is sleeved outside the motor shaft of the motor (3) and fastened; the other end is a coupling (42) which is connected to the shaft of the test piece; The longitudinal section of the coupling (42) is "D" shaped; The bearing (5) comprises a mounting hole (51) arranged in the middle and a bearing base (52); the mounting hole (51) enables the other end of the test piece to be fixed on the bearing (5); the bottom of the bearing base (52) is fixed to the groove of the second grooved track (22) by means of a base screw (53) and a nut.

2. The Buss rubber testing device according to claim 1, characterized in that: The cross section of the coupling (42) can be matched and installed with the metal shaft (62) of the Buss (6).

3. The Buss rubber testing device according to claim 1 or 2, characterized in that: The diameter of the base screw (53) at the bottom of the bearing base (52) is smaller than the width of the groove.

4. The Buss rubber testing device according to claim 3, characterized in that: The controller (8) is electrically connected to the motor (3), and is provided with a tachometer (81), a timer (82), a switch (83), a speed regulator (84), a start button (85), and a stop button (86).

5. The Buss rubber testing device according to claim 4, characterized in that: The object to be tested is a crossflow fan blade (7).

6. A Buss rubber test method, characterized in that: The method comprises using the Buss rubber testing device as claimed in any one of claims 1 to 5, connecting the end of the test piece with the Buss (6) to the motor (3) at an angle, so that the rubber ring (61) on the Buss (6) is mechanically twisted, thereby realizing a test on the mechanical twisting force it withstands.

7. The Buss rubber testing method according to claim 6, characterized in that: The steps include: S1. Arrange the test piece on the workbench (1); S2. The test piece is installed between the bearing (5) and the motor (3), the shaft of the test piece is connected to the motor (3) at an angle, and the rubber ring (61) on the bus (6) is mechanically twisted; S3, setting the rotation speed and test time of the motor (3) through the controller (8) to test the mechanical distortion bearing capacity of the rubber ring (61).

8. The Buss rubber testing method according to claim 7, characterized in that: The test piece is a crossflow fan blade (7); the arrangement method of step S1 is: the crossflow fan blade (7) and the two groups of grooved tracks on the workbench (1) are arranged to form a right triangle, with the central axis of the crossflow fan blade (7) as the hypotenuse c of the right triangle, and the two groups of grooved tracks as the two right-angled sides of the right triangle, which are a and b respectively; the first grooved track (21) is the right-angled side a, and its length is L1; the second grooved track (22) is the right-angled side b, and its length is L2.

9. The Buss rubber testing method according to claim 8, characterized in that: The installation method of step S2 is as follows: determining the angle between the shaft of the crossflow fan blade (7) and the motor (3), the angle being θ, that is, the angle between the hypotenuse c and the right-angled side a; bending the rubber ring (61) of the booth (6) and the metal shaft (62), and connecting the metal shaft (62) to the motor shaft of the motor (3) through the motor booth connector (4); calculating the lengths L1 and L2 of the two right-angled sides of the right triangle according to the angle θ and the hypotenuse c, and fixing the positions of the bearing (5) and the motor (3) on the grooved track by adjusting the base screws (53) and the nuts according to the lengths of L1 and L2; and at the same time, adjusting the angle between the bearing (5) and the second grooved track (22).

10. The Buss rubber testing method according to claim 9, characterized in that: The test method of step S3 is as follows: turning on the switch (83) on the controller (8), setting the rotation speed of the motor (3) and the test time through the tachometer (81) and the timer (82), pressing the start button (85) to start the test; and when the test time is reached, pressing the stop button (86) to stop the test.

Images