Motor noise testing equipment

Abstract

The utility model relates to motor noise test equipment, belongs to the noise test equipment technical field, and comprises a fixed station and a sound insulation frame, the front side of the sound insulation frame is provided with a control panel, the left and right side walls of the inner cavity of the sound insulation frame are both provided with noise sensors, and the left and right side walls of the inner cavity of the sound insulation frame are both provided with patch boards; an adjusting mechanism is arranged on the upper surface of the fixing table and comprises U-shaped frames fixed to the left side and the right side of the upper surface of the fixing table, and two sliding rods are fixed into each U-shaped frame. According to the motor noise test equipment, first electric push rods on the left and right sides can be started at the same time by operating a control panel, then moving blocks on the left and right sides can be driven to move up and down on the outer sides of left and right side sliding rods, and the moving blocks on the left and right sides can move up and down to drive a sound insulation frame to move up and down; therefore, testers with different heights can use the motor noise testing equipment conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of noise testing equipment, in particular to motor noise testing equipment. Background Art

[0002] In the production of wheelchairs, drive motors are needed. The noise of the drive motors needs to be tested when they are running. They can only be used after the noise test is qualified. Generally, the noise of the motors during operation can be tested through motor noise testing equipment.

[0003] For example, Chinese patent CN214843612U discloses a motor noise testing device, including a base, a closed box body is provided above the base, a positioning seat and a decibel collector arranged on one side of the positioning seat are provided in the closed box body, a V-shaped groove is provided on the top surface of the positioning seat for placing the motor to be tested, and a dynamometer connected to the motor to be tested is provided on the base corresponding to the outer side of the closed box body. The utility model has the characteristics of wide application range and low positioning accuracy requirements.

[0004] Although the above patent has the characteristics of wide application range and low positioning accuracy requirements, the height of the base in the patent is a fixed value, which is not convenient for adjusting its horizontal height. It is also not convenient for testers of different heights to place the motor to be tested inside the closed box to test the motor noise, which reduces the practicality. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a motor noise testing device having the advantages of being able to adjust the horizontal height, etc., which solves the problem that the height of the base is a fixed value, which makes it inconvenient to adjust its horizontal height, and thus makes it inconvenient for testers of different heights to place the motor to be tested inside a closed box to test the motor noise, thus reducing the practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor noise testing device, comprising a fixing platform and a sound insulation frame, a control panel is arranged on the front of the sound insulation frame, noise sensors are arranged on the left and right side walls of the inner cavity of the sound insulation frame, and plug boards are arranged on the left and right side walls of the inner cavity of the sound insulation frame, an adjustment mechanism is arranged on the upper surface of the fixing platform, a fixing mechanism is arranged inside the sound insulation frame, and a sound insulation cover is arranged on the top of the sound insulation frame;

[0007] The adjustment mechanism includes a U-shaped frame fixed on the left and right sides of the upper surface of the fixed table, two sliding rods are fixed inside the U-shaped frame, and the outer sides of the sliding rods on the front and rear sides are slidably connected with moving blocks, and the moving blocks are slidably connected inside the U-shaped frame. A first electric push rod is fixed on the upper surface of the U-shaped frame, and the outer side of the output shaft of the first electric push rod passes through the U-shaped frame and extends to the inside, the outer side of the output shaft of the first electric push rod is fixedly connected to the upper surface of the moving block, and the outer side of the output shaft of the first electric push rod is slidably connected to the inside of the U-shaped frame, and the opposite sides of the left and right moving blocks are fixedly connected to the left and right sides of the sound insulation frame.

[0008] Furthermore, the adjustment mechanism also includes a limiting telescopic rod fixed at the four corners of the lower surface of the sound insulation frame, the bottom end of the limiting telescopic rod is fixedly connected to the upper surface of the fixed platform, and the two first electric push rods are electrically connected to the control panel through wires.

[0009] Furthermore, the position-limiting telescopic rod comprises a first movable rod, the outer side of the first movable rod is slidably connected to a second movable rod, and the outer side of the second movable rod is slidably connected to a third sliding rod.

[0010] Furthermore, a handle is fixed on the upper surface of the sound insulation cover, and a non-slip rubber sleeve is fixed on the outer side of the handle.

[0011] Furthermore, the fixing mechanism includes a mounting platform fixed on the left and right sides of the bottom wall of the inner cavity of the sound insulation frame, a second electric push rod is fixed on the upper surface of the mounting platform, a placing platform is fixed to the bottom wall of the inner cavity of the sound insulation frame, a clamping plate is fixed to the outer side of the output shaft of the second electric push rod, support plates are fixed on the left and right sides of the bottom wall of the inner cavity of the sound insulation frame, fixed telescopic rods are fixed on the opposite sides of the support plates on the left and right sides, and the opposite sides of the fixed telescopic rods on the left and right sides are fixedly connected to the opposite sides of the left and right clamping plates, and the two second electric push rods are electrically connected to the control panel through wires.

[0012] Furthermore, the fixed telescopic rod includes a first movable rod, and a second movable rod is slidably connected inside the first movable rod.

[0013] Furthermore, a storage box is fixed to the top wall of the inner cavity of the fixed platform, a drawer is slidably connected to the front of the storage box, a handle is fixed to the front of the drawer, two noise sensors are electrically connected to the control panel through wires, and two power strips are electrically connected to the control panel through wires.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The motor noise test equipment can start the first electric push rods on the left and right sides at the same time by operating the control panel, and then drive the moving blocks on the left and right sides to move up and down on the outside of the left and right sliding rods. The moving blocks on the left and right sides move up and down, which can drive the sound insulation frame to move up and down, thereby facilitating the use of the motor noise test equipment by testers of different heights.

[0016] 2. The motor noise testing equipment can remove the sound insulation cover from the top of the sound insulation frame, and then place the motor to be tested for noise on the upper surface of the placement table and inside the sound insulation frame. At this time, the second electric push rods on the left and right sides can be started simultaneously through the operation control panel. The output shafts of the second electric push rods on the left and right sides drive the clamping plates on the left and right sides to move in relative directions and clamp the motor. Motors of different sizes can be fixed by the drive of the second electric push rods on the left and right sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the sound insulation frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the adjustment mechanism of the utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the U-shaped frame of the utility model;

[0021] Figure 5 It is a schematic diagram of the fixing mechanism of the utility model.

[0022] In the figure: 1 fixed platform, 2 sound insulation frame, 3 control panel, 4 noise sensor, 5 power strip, 6 adjustment mechanism, 601 U-shaped frame, 602 sliding rod, 603 moving block, 604 first electric push rod, 605 limiting telescopic rod, 7 fixed mechanism, 701 mounting platform, 702 second electric push rod, 703 placing platform, 704 clamping plate, 705 support plate, 706 fixed telescopic rod, 8 sound insulation cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-2The motor noise testing equipment in this embodiment includes a fixing platform 1 and a sound insulation frame 2. A control panel 3 is arranged on the front of the sound insulation frame 2. Noise sensors 4 are arranged on the left and right side walls of the inner cavity of the sound insulation frame 2. Plug strips 5 are arranged on the left and right side walls of the inner cavity of the sound insulation frame 2. An adjusting mechanism 6 is arranged on the upper surface of the fixing platform 1. The adjusting mechanism 6 can adjust the horizontal height. A fixing mechanism 7 is arranged inside the sound insulation frame 2. The fixing mechanism 7 can fix motors of different sizes. A sound insulation cover 8 is arranged on the top of the sound insulation frame 2.

[0025] In this embodiment, a handle is fixed on the upper surface of the sound insulation cover 8, a non-slip rubber sleeve is fixed on the outside of the handle, a storage box is fixed on the top wall of the inner cavity of the fixed platform 1, the storage box can be used to store the tools needed for the test, a drawer is slidably connected to the front of the storage box, a handle is fixed on the front of the drawer, the two noise sensors 4 are electrically connected to the control panel 3 through wires, and the two power strips 5 are electrically connected to the control panel 3 through wires.

[0026] See also Figure 2-3 In order to adjust the horizontal height, in this embodiment, the adjustment mechanism 6 includes a U-shaped frame 601 fixed on the left and right sides of the upper surface of the fixed platform 1, two sliding rods 602 are fixed inside the U-shaped frame 601, and the outer sides of the front and rear sliding rods 602 are slidably connected with a moving block 603, and the moving block 603 is slidably connected inside the U-shaped frame 601. A first electric push rod 604 is fixed on the upper surface of the U-shaped frame 601, and the outer side of the output shaft of the first electric push rod 604 passes through the U-shaped frame 601 and extends to the inside, and the outer side of the output shaft of the first electric push rod 604 is fixedly connected to the upper surface of the moving block 603, and the outer side of the output shaft of the first electric push rod 604 is slidably connected to the inside of the U-shaped frame 601, and the opposite sides of the left and right moving blocks 603 are fixedly connected to the left and right sides of the sound insulation frame 2.

[0027] In this embodiment, the adjustment mechanism 6 also includes a limiting telescopic rod 605 fixed at the four corners of the lower surface of the sound insulation frame 2. The first electric push rods 604 on the left and right sides can be started simultaneously by operating the control panel 3, and then the moving blocks 603 on the left and right sides can be driven to move up and down on the outside of the left and right sliding rods 602. The four limiting telescopic rods 605 play a limiting support role. The bottom end of the limiting telescopic rod 605 is fixedly connected to the upper surface of the fixed platform 1. The two first electric push rods 604 are electrically connected to the control panel 3 through wires. The limiting telescopic rod 605 includes a first movable rod, and the outer side of the first movable rod is slidably connected to the second movable rod, and the outer side of the second movable rod is slidably connected to the third sliding rod.

[0028] It should be noted that the moving blocks 603 on the left and right sides move up and down, which can drive the sound insulation frame 2 to move up and down, so as to facilitate testers of different heights to use the motor noise testing equipment.

[0029] See also Figure 4 In order to fix motors of different sizes, in this embodiment, the fixing mechanism 7 includes a mounting table 701 fixed on the left and right sides of the bottom wall of the inner cavity of the sound insulation frame 2, a second electric push rod 702 is fixed on the upper surface of the mounting table 701, a placing table 703 is fixed on the bottom wall of the inner cavity of the sound insulation frame 2, a clamping plate 704 is fixed on the outer side of the output shaft of the second electric push rod 702, support plates 705 are fixed on the left and right sides of the bottom wall of the inner cavity of the sound insulation frame 2, fixed telescopic rods 706 are fixed on the opposite sides of the left and right support plates 705, and the opposite sides of the left and right fixed telescopic rods 706 are fixedly connected to the opposite sides of the left and right clamping plates 704, and the two second electric push rods 702 are electrically connected to the control panel 3 through wires.

[0030] In this embodiment, the sound insulation cover 8 can be removed from the top of the sound insulation frame 2, and then the motor to be tested for noise can be placed on the upper surface of the placement table 703 and inside the sound insulation frame 2. At this time, the second electric push rods 702 on the left and right sides can be started simultaneously by operating the control panel 3. The output shafts of the second electric push rods 702 on the left and right sides drive the clamping plates 704 on the left and right sides to move in relative directions and clamp the motor. At this time, the plug of the test motor can be inserted on either side of the left and right side sockets 5, and then the sound insulation cover 8 can be covered on the upper surface of the sound insulation frame 2. At this time, the left and right side sockets 5 are energized through the control panel 3, and then the motor to be tested rotates, and then the left and right noise sensors 4 are turned on through the control panel 3.

[0031] In this embodiment, the fixed telescopic rod 706 includes a first movable rod, and the interior of the first movable rod is slidably connected to a second movable rod.

[0032] It should be noted that the noise sensors 4 on the left and right sides detect the noise when the test motor rotates and display the noise value through the display screen in the control panel 3. Motors of different sizes can be fixed by driving the second electric push rods 702 on the left and right sides, thereby improving practicality.

[0033] The working principle of the above embodiment is:

[0034] (1) The first electric push rods 604 on the left and right sides can be started simultaneously by operating the control panel 3, and then the moving blocks 603 on the left and right sides can be driven to move up and down on the outside of the left and right sliding rods 602. The four limit telescopic rods 605 play a role of limit support. The moving blocks 603 on the left and right sides move up and down, which can drive the sound insulation frame 2 to move up and down, so that testers of different heights can use the motor noise test equipment.

[0035] (2) The soundproof cover 8 can be taken off from the top of the soundproof frame 2, and then the motor to be tested for noise can be placed on the upper surface of the placement table 703 and inside the soundproof frame 2. At this time, the second electric push rods 702 on the left and right sides can be started simultaneously by operating the control panel 3. The output shafts of the second electric push rods 702 on the left and right sides drive the clamping plates 704 on the left and right sides to move in relative directions and clamp the motor. At this time, the plug of the test motor can be inserted on either side of the left and right side sockets 5, and then the soundproof cover 8 can be covered on the upper surface of the soundproof frame 2. At this time, the left and right side sockets 5 are powered on through the control panel 3, and then the motor to be tested rotates. Then, the left and right side noise sensors 4 are turned on through the control panel 3. The left and right side noise sensors 4 detect the noise of the test motor when it rotates and display it on the display screen in the control panel 3. Motors of different sizes can be fixed by the drive of the second electric push rods 702 on the left and right sides, thereby improving practicality.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A motor noise testing device, comprising a fixing platform (1) and a sound insulation frame (2), characterized in that: A control panel (3) is provided on the front of the sound insulation frame (2), noise sensors (4) are provided on the left and right side walls of the inner cavity of the sound insulation frame (2), and plug boards (5) are provided on the left and right side walls of the inner cavity of the sound insulation frame (2). An adjustment mechanism (6) is provided on the upper surface of the fixing platform (1), a fixing mechanism (7) is provided inside the sound insulation frame (2), and a sound insulation cover (8) is provided on the top of the sound insulation frame (2); The adjustment mechanism (6) comprises a U-shaped frame (601) fixed on the left and right sides of the upper surface of the fixed platform (1); two sliding rods (602) are fixed inside the U-shaped frame (601); the outer sides of the sliding rods (602) on the front and rear sides are slidably connected to moving blocks (603); the moving blocks (603) are slidably connected inside the U-shaped frame (601); a first electric push rod (604) is fixed on the upper surface of the U-shaped frame (601); the outer side of the output shaft of the first electric push rod (604) passes through the U-shaped frame (601) and extends to the inside; the outer side of the output shaft of the first electric push rod (604) is fixedly connected to the upper surface of the moving block (603); the outer side of the output shaft of the first electric push rod (604) is slidably connected to the inside of the U-shaped frame (601); and the opposite sides of the left and right moving blocks (603) are fixedly connected to the left and right sides of the sound insulation frame (2).

2. The motor noise testing device according to claim 1, characterized in that: The adjustment mechanism (6) also includes limiting telescopic rods (605) fixed at the four corners of the lower surface of the sound insulation frame (2), the bottom end of the limiting telescopic rod (605) is fixedly connected to the upper surface of the fixed platform (1), and the two first electric push rods (604) are electrically connected to the control panel (3) through wires.

3. The motor noise testing device according to claim 2, characterized in that: The position-limiting telescopic rod (605) comprises a first movable rod, the outer side of the first movable rod is slidably connected to a second movable rod, and the outer side of the second movable rod is slidably connected to a third sliding rod.

4. The motor noise testing device according to claim 1, characterized in that: A handle is fixed on the upper surface of the sound insulation cover (8), and an anti-slip rubber sleeve is fixed on the outer side of the handle.

5. The motor noise testing device according to claim 1, characterized in that: The fixing mechanism (7) comprises a mounting platform (701) fixed on the left and right sides of the bottom wall of the inner cavity of the sound insulation frame (2); a second electric push rod (702) is fixed on the upper surface of the mounting platform (701); a placing platform (703) is fixed on the bottom wall of the inner cavity of the sound insulation frame (2); a clamping plate (704) is fixed on the outer side of the output shaft of the second electric push rod (702); support plates (705) are fixed on the left and right sides of the bottom wall of the inner cavity of the sound insulation frame (2); fixed telescopic rods (706) are fixed on the opposite sides of the support plates (705) on the left and right sides; the opposite sides of the fixed telescopic rods (706) on the left and right sides are fixedly connected to the opposite sides of the left and right clamping plates (704); and the two second electric push rods (702) are electrically connected to the control panel (3) through wires.

6. The motor noise testing device according to claim 5, characterized in that: The fixed telescopic rod (706) comprises a first movable rod, and a second movable rod is slidably connected inside the first movable rod.

7. The motor noise testing device according to claim 1, characterized in that: A storage box is fixed to the top wall of the inner cavity of the fixed platform (1), a drawer is slidably connected to the front of the storage box, a handle is fixed to the front of the drawer, two noise sensors (4) are electrically connected to the control panel (3) through wires, and two power strips (5) are electrically connected to the control panel (3) through wires.

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