Alternating current fan test mechanism and test system

Abstract

The utility model relates to an alternating current fan test mechanism and a test system. The alternating-current fan testing mechanism comprises a bottom plate, the bottom plate is connected with a supporting column, the upper end of the supporting column is connected with a carrier fixing plate, a containing hole is formed in the middle of the carrier fixing plate, the bottom plate is connected with a lifting air cylinder, a push rod of the lifting air cylinder is connected with a clamping jaw fixing plate, and the clamping jaw fixing plate is provided with a clamping jaw air cylinder which is provided with a plurality of clamping jaws. The clamping jaw is connected with an accelerometer sensor; one side of the bottom plate is provided with an optical fiber speed measurement assembly, the optical fiber speed measurement assembly comprises a supporting column fixed on the bottom plate, the upper end of the supporting column is connected with an optical fiber fixing seat, and the upper end of the optical fiber fixing seat is provided with an optical fiber displacement sensor used for testing the rotating speed of the fan. According to the utility model, the accelerometer sensor and the optical fiber displacement sensor are arranged, so that vibration and rotating speed tests can be carried out on the AC fan at the same time; and a plurality of fans can be tested at the same time, so that the test efficiency is effectively improved, and the test cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fan performance testing, in particular to an AC fan testing mechanism and a testing system. Background Art

[0002] After the fan is produced, it needs to be tested. Currently, manual operation is generally used, and only one performance can be tested at a time. The test speed is slow, the efficiency is low, and the cost is high. Summary of the invention

[0003] The utility model aims to provide an AC fan testing mechanism to address the deficiencies of the prior art. The testing mechanism can test multiple performances at the same time and has high testing efficiency.

[0004] Another object of the present invention is to provide a testing system, which has the above-mentioned testing mechanism.

[0005] An AC fan testing mechanism includes a base plate, the base plate is connected to a plurality of pillars, the upper ends of the pillars are connected to a carrier fixing plate, the middle part of the carrier fixing plate is provided with an accommodating hole for accommodating the fan, the base plate is connected to a lifting cylinder, the push rod of the lifting cylinder is connected to a clamping plate, the clamping plate is equipped with a clamping cylinder, the clamping cylinder is provided with a plurality of clamps, one of the clamps is connected to an accelerometer sensor; an optical fiber speed measuring assembly is installed on one side of the base plate, the optical fiber speed measuring assembly includes a supporting column fixed to the base plate, the upper end of the supporting column is connected to an optical fiber fixing seat, and the upper end of the optical fiber fixing seat is equipped with an optical fiber displacement sensor for testing the fan speed.

[0006] Furthermore, the clamping jaw is connected to a conductive copper block.

[0007] Furthermore, a plurality of guide columns are connected to the lower end of the clamp fixing plate, a linear bearing matched with the guide columns is connected to the bottom plate, and the guide columns are sleeved with the linear bearings.

[0008] Furthermore, the bottom plate is connected to a dust cover assembly, which includes a dust cover and a rotating mechanism for driving the dust cover to rotate. When the fan is tested, the rotating structure drives the dust cover to rotate above the fan.

[0009] Furthermore, the rotating mechanism includes two fixed seats connected to the base plate, the two fixed seats are arranged at intervals, the upper ends of the fixed seats are connected to bearing seats, the two bearing seats are connected to rotating shafts, one end of the rotating shaft extends out of the corresponding bearing seat and is connected to a rotating cylinder through a coupling, and the rotating cylinder is fixed to the base plate through a cylinder seat; one side of the dust cover is connected to a vertical plate, and the vertical plate is fixedly connected to the rotating shaft.

[0010] A testing system includes a conveying mechanism, workbenches are respectively provided on both sides of the conveying mechanism, a plurality of the above-mentioned AC fan testing mechanisms are installed on the workbenches, a bridging platform is connected between the two workbenches, the bridging platform is located above the conveying mechanism and is connected to a transfer robot; the transfer robot is provided with a clamp for grabbing a carrier.

[0011] The beneficial effects of the utility model are as follows: the utility model can simultaneously test the vibration and rotation speed of an AC fan by arranging an accelerometer sensor and an optical fiber displacement sensor; secondly, multiple fans can be tested simultaneously, which effectively improves the test efficiency and reduces the test cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the test system of the utility model.

[0013] Figure 2 The utility model is a schematic diagram of an AC fan testing mechanism.

[0014] Figure 3 for Figure 2 Schematic diagram from another perspective.

[0015] Figure 4 Another state diagram of the AC fan testing mechanism of the utility model

[0016] Figure 5 A schematic diagram of the coordination between a vehicle and a fan.

[0017] Figure 6 for Figure 5 Schematic diagram from another perspective.

[0018] Reference numerals:

[0019] 1——Conveying mechanism; 2——Clamp; 3——AC fan testing mechanism; 4——Transfer robot; 5——Base plate; 6——Carrier fixing plate; 7——Gripper cylinder; 8——Support column; 9——Fiber optic fixing seat; 10——Fiber optic displacement sensor; 11——Bearing seat; 12——Rotating shaft; 13——Dust cover; 14——Vertical plate; 15——Coupling; 16——Cylinder seat; 17——Rotary cylinder; 18——Accelerometer sensor; 19——Gripper; 20——Linear bearing; 21——Bridge table; 22——Lifting cylinder; 23——Gripper fixing plate; 24——Guide column; 25——Pillar; 26——Fixed seat. Implementation

[0020] The utility model is described in detail below with reference to the accompanying drawings.

[0021] Example: See Figures 2 to 6, an AC fan testing mechanism 3, which includes a base plate 5, the base plate 5 is connected to a plurality of pillars 25, the upper ends of the pillars 25 are connected to a carrier fixing plate 6, the middle part of the carrier fixing plate 6 is provided with an accommodating hole for accommodating the fan, the base plate 5 is connected to a lifting cylinder 22, the push rod of the lifting cylinder 22 is connected to a clamping claw fixing plate 23, the clamping claw fixing plate 23 is installed with a clamping claw cylinder 7, the clamping claw cylinder 7 is provided with a plurality of clamping claws 19, one of the clamping claws 19 is connected to an accelerometer sensor 18; a fiber optic speed measuring assembly is installed on one side of the base plate 5, the fiber optic speed measuring assembly includes a support column 8 fixed to the base plate 5, the upper end of the support column 8 is connected to a fiber optic fixing seat 9, and the upper end of the fiber optic fixing seat 9 is installed with a fiber optic displacement sensor 10 for testing the fan speed.

[0022] During the test, a signal collection and processing device is provided, and the accelerometer sensor 18 and the optical fiber displacement sensor 10 are both electrically connected to the signal collection and processing device.

[0023] When the technical solution is working, the fan is fixed to the carrier and loaded on the carrier fixing plate 6 through the carrier. At the same time, the fan is embedded in the accommodating hole. Then the lifting cylinder 22 drives the clamp fixing plate 23 to move upward, and the clamp cylinder 7 moves to the predetermined position. The clamp cylinder 7 acts to clamp the outer shell of the fan. Then the test starts, the fan is loaded with power to work, the accelerometer sensor 18 is used to test the working vibration of the fan, and transmits the vibration signal to the signal collection and processing device. At the same time, the optical fiber displacement sensor 10 also transmits the fan's speed signal to the signal processing and collection device; thereby completing the vibration and speed test of the AC fan. Two tests can be performed at one time, which can effectively improve the test efficiency. The signal collection and processing device can be a prior art, such as a test host.

[0024] Furthermore, a plurality of guide posts 24 are connected to the lower end of the clamping jaw fixing plate 23 , and a linear bearing 20 matched with the guide posts 24 is connected to the bottom plate 5 , and the guide posts 24 are sleeved with the linear bearing 20 .

[0025] The guide column 24 and the linear bearing 20 are provided to assist the clamping jaw fixing plate 23 to move smoothly in the up and down movement.

[0026] Furthermore, the bottom plate 5 is connected to a dust cover assembly, which includes a dust cover 13 and a rotating mechanism for driving the dust cover 13 to rotate. When the fan test is performed, the rotating structure drives the dust cover 13 to rotate to the top of the fan.

[0027] A dust cover assembly is provided to simulate the working environment of the fan when it is working and to prevent interference from dust during the test.

[0028] Furthermore, the rotating mechanism includes two fixed seats 26 connected to the base plate 5, the two fixed seats 26 are arranged at intervals, the upper ends of the fixed seats 26 are connected to the bearing seats 11, the two bearing seats 11 are connected to the rotating shaft 12, one end of the rotating shaft 12 extends out of the corresponding bearing seat 11 and is connected to the rotating cylinder 17 through the coupling 15, and the rotating cylinder 17 is fixed to the base plate 5 through the cylinder seat 16; one side of the dust cover 13 is connected to the vertical plate 14, and the vertical plate 14 is fixedly connected to the rotating shaft 12.

[0029] The rotating shaft 12 is driven to rotate by the rotating cylinder 17, and the vertical plate 14 is driven to rotate. The vertical plate 14 rotates together with the dust cover 13, and the rotation range is 0-90 degrees. Preferably, a reinforcement block is connected between the dust cover 13 and the vertical plate 14.

[0030] See also Figure 1 A testing system includes a conveying mechanism 1, workbenches are respectively provided on both sides of the conveying mechanism 1, and a plurality of the above-mentioned AC fan testing mechanisms 3 are installed on the workbenches. A bridging platform 21 is connected between the two workbenches. The bridging platform 21 is located above the conveying mechanism 1 and is connected to a transfer robot 4; the transfer robot 4 is provided with a fixture 2 for grabbing a carrier.

[0031] The conveying mechanism 1 may be a prior art, and is used to convey a carrier, on which a fan is installed. When the carrier moves on the conveying mechanism 1, the transfer robot 4 sequentially grabs the carrier and places it into the AC fan test mechanism 3, so that the performance tests of multiple fans can be performed. During the test, the signal collection and processing device can simultaneously perform signal collection and processing on all the AC fan test mechanisms 3, that is, one signal collection and processing device can simultaneously perform signal collection and testing on multiple AC fans, effectively reducing costs and improving detection efficiency. When the detection is completed, the transfer robot 4 takes the carrier out of the AC fan test mechanism 3 and places it into the conveying mechanism 1 for continued transportation.

[0032] The above contents are only preferred embodiments of the utility model. For ordinary technicians in this field, according to the concept of the utility model, there will be changes in the specific implementation method and application scope. The content of this specification should not be understood as a limitation on the utility model.

Claims

1. An AC fan testing mechanism, characterized in that: It includes a base plate, the base plate is connected to a plurality of pillars, the upper ends of the pillars are connected to a carrier fixing plate, the middle part of the carrier fixing plate is provided with an accommodating hole for accommodating a fan, the base plate is connected to a lifting cylinder, the push rod of the lifting cylinder is connected to a clamping plate, the clamping plate is equipped with a clamping cylinder, the clamping cylinder is provided with a plurality of clamps, one of the clamps is connected to an accelerometer sensor; a fiber optic speed measuring assembly is installed on one side of the base plate, the fiber optic speed measuring assembly includes a support column fixed to the base plate, the upper end of the support column is connected to a fiber optic fixing seat, and the upper end of the fiber optic fixing seat is equipped with a fiber optic displacement sensor for testing the fan speed.

2. An AC fan testing mechanism according to claim 1, characterized in that: The lower end of the clamping jaw fixing plate is connected with a plurality of guide columns, the bottom plate is connected with linear bearings matched with the guide columns, and the guide columns are sleeved with the linear bearings.

3. The AC fan testing mechanism according to claim 1, characterized in that: The bottom plate is connected with a dust cover assembly, which includes a dust cover and a rotating mechanism for driving the dust cover to rotate. When the fan is tested, the rotating structure drives the dust cover to rotate above the fan.

4. The AC fan testing mechanism according to claim 3, characterized in that: The rotating mechanism includes two fixed seats connected to the base plate, the two fixed seats are arranged at intervals, the upper ends of the fixed seats are connected to bearing seats, the two bearing seats are connected to rotating shafts, one end of the rotating shaft extends out of the corresponding bearing seat and is connected to a rotating cylinder through a coupling, and the rotating cylinder is fixed to the base plate through a cylinder seat; one side of the dust cover is connected to a vertical plate, and the vertical plate is fixedly connected to the rotating shaft.

5. A testing system, comprising a conveying mechanism, with workbenches provided on both sides of the conveying mechanism, characterized in that: The workbench is installed with several AC fan testing mechanisms described in any one of claims 1 to 4, and a bridge platform is connected between two workbenches. The bridge platform is located above the conveying mechanism and is connected to a transfer robot; the transfer robot is provided with a clamp for grabbing the carrier.

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