Power air volume testing machine

Abstract

The utility model discloses a power air volume testing machine, which comprises an equipment box, wherein a testing cavity is formed in the middle of the equipment box; the supporting table is arranged on the outer side of the testing cavity, the top of the supporting table is flush with the bottom of the testing cavity, and the supporting table and the testing cavity form a detection table; the detection device comprises a detection table, a mounting table, and the mounting table is arranged at the top of the detection table in a sliding manner, the mounting table comprises a first moving table and a second moving table, and the first moving table and the second moving table are in transmission connection through a gear assembly. Through transmission connection of the gear assemblies and driving of the double-shaft air cylinder, rapid up-down staggered sliding and position switching of the test pieces are achieved. When one test piece is tested, another position can immediately prepare the next test piece, so that the test efficiency is greatly improved; the height of the air pipe is adjusted through the lifting air cylinder, and the air pipe can be in butt joint contact with the first moving table or the second moving table conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air volume testing machine, concretely to a power air volume testing machine. BACKGROUND

[0002] The air volume testing machine, also known as air speed and air volume detector or air volume tester, is an instrument for measuring air speed and air volume.

[0003] The existing testing machine is mostly single-station, and during testing operation, the workpiece needs to be disassembled and replaced after one test is completed, during which the equipment is in a suspended state, and the continuity of testing cannot be realized, and the testing efficiency cannot be effectively improved. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a power air volume testing machine to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a power air volume testing machine, comprising:

[0006] The equipment box is provided with a test cavity in the middle;

[0007] The support table is placed outside the test cavity, and the top of the support table is flush with the bottom of the test cavity, and the two constitute a detection table;

[0008] The mounting table is slidingly placed on the top of the detection table, and the mounting table comprises a moving table one and a moving table two, the moving table one and the moving table two are drivingly connected through a gear assembly, the outer side of the moving table two is provided with a double-shaft air cylinder for driving the moving table two to rise and fall, and when moving, the moving table one and the moving table two slide up and down in staggered positions to switch positions;

[0009] The air pipe is liftingly placed at the bottom of the test cavity, and the middle part of the air pipe is provided with a differential pressure sensor.

[0010] As a preferred, the outer side of the air pipe is fixedly connected with a support inside, and the differential pressure sensor is fixedly connected to the top of the support.

[0011] As a preferred, the outer side of the air pipe is fixedly connected with a support ring, the bottom of the support ring is fixedly connected with a lifting air cylinder, and the lifting air cylinder penetrates through the support ring and is connected with the bottom of the test cavity.

[0012] As a preferred, the top of the moving table one is slidingly connected with a moving table one through a guide rail one, the inside of the test cavity is provided with a transmission belt assembly, the transmission belt of the transmission belt assembly is fixedly connected with the moving table one, and the top of the support table is provided with a motor for driving the transmission belt assembly.

[0013] Preferably, the mobile station two is fixed with a double-shaft air cylinder on both sides, and the output end of the double-shaft air cylinder is fixedly connected with a sliding sleeve.

[0014] Preferably, the gear assembly comprises a rack one fixed on the side of the mobile station one, the outer side of the rack one is meshingly connected with a transmission gear, the transmission gear is rotationally connected with the support table, the outer side of the transmission gear is meshingly connected with a rack two, and the rack two is fixed with the sliding sleeve.

[0015] Preferably, the middle part of the mobile station one and the mobile station two is provided with a mounting groove for mounting a test piece, the mounting groove is the same in size as the inner diameter of the air pipe, and the bottom of the test cavity is provided with a hole for sliding the air pipe.

[0016] Compared with the prior art, the utility model has the advantages that: through the setting of the mobile station one and the mobile station two and the gear assembly transmission connection and the driving of the double-shaft air cylinder between them, the quick up-down staggered sliding and position switching of the test piece are realized; one test piece is tested while the other position can immediately prepare the next test piece, so that the test efficiency is greatly improved; the air pipe is adjusted in height by the lifting cylinder and can be conveniently connected with the mobile station one or the mobile station two; the motor drives the transmission belt assembly to move the mobile station one, the double-shaft air cylinder drives the mobile station two to lift, the automatic design reduces the manual intervention, and the test efficiency and accuracy are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a position structural schematic view of the double-shaft air cylinder of the utility model;

[0019] Figure 3 It is a position structural schematic view of the lifting cylinder of the utility model;

[0020] Figure 4 It is a position structural schematic view of the motor of the utility model;

[0021] Figure 5 It is a structural schematic view of the gear assembly of the utility model;

[0022] Figure 6 It is a structural schematic view of the transmission belt assembly of the utility model;

[0023] Figure 7 It is a structural schematic view of the air pipe of the utility model.

[0024] In the figure: 1, support table; 2, moving table one; 3, moving table two; 4, double shaft air cylinder; 5, sliding sleeve; 6, transmission belt assembly; 7, motor; 8, air pipe; 9, support; 10, differential pressure sensor; 11, lifting air cylinder; 12, support ring; 13, rack one; 14, rack two; 15, transmission gear; 16, mounting groove; 17, test cavity. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figure 1 , 2 , 3, 4, 5, 6, 7, the utility model provides a technical scheme: a kind of power air volume testing machine, comprising: equipment box with test cavity 17 in middle part;Support table 1 is fixedly connected at the outside of test cavity 17, and the top of support table 1 is flush with the bottom of test cavity 17 and both constitute detection table;Mounting table is slidably arranged on the top of detection table, and mounting table includes moving table one 2 and moving table two 3, the top of moving table one 2 and moving table two 3 is equipped with power connection, for providing power for the piece to be tested, moving table one 2 and moving table two 3 are connected by gear assembly transmission, the outside of moving table two 3 is equipped with double shaft air cylinder 4 for driving moving table two 3 to lift, when moving, moving table one 2 and moving table two 3 are staggered sliding up and down to switch position;Air pipe 8 is lifted and arranged at the bottom of test cavity 17, and the middle part of air pipe 8 is equipped with differential pressure sensor 10.

[0027] It needs to be explained that the utility model sets up the controller and corresponding operation panel, test piece is placed in the middle part of mobile platform 1 2, control transmission belt assembly 6 drives mobile platform 1 2 to move to the inside, at the same time, double-shaft air cylinder 4 drives mobile platform 2 3 to rise, so that mobile platform 1 2 and mobile platform 2 3 are staggered up and down, mobile platform 1 2 is moved to the inside in the process by gear assembly drives mobile platform 2 3 to move to the outside, so that the middle part of mobile platform 1 2 corresponds with air pipe 8, mobile platform 2 3 moves to the position of replacing workpiece at this time, after taking off the middle part workpiece of mobile platform 2 3, the new test piece is replaced, the test piece in the middle part of mobile platform 1 2 corresponds with air pipe 8, air pipe 8 is lifted to make its top and the bottom of mobile platform 1 2 adhere, when the airflow flows in air pipe 8, the windward surface is impacted by airflow, leading to the kinetic energy of airflow to be converted into pressure energy, the pressure is called "total pressure". The pressure of leeward side is the static pressure in air pipe, called "static pressure". The difference between total pressure and static pressure is called "dynamic pressure", and the size of dynamic pressure is directly proportional to wind speed. By measuring dynamic pressure and finding the corresponding relationship between dynamic pressure and wind speed, the wind speed in pipe can be accurately measured.

[0028] Please refer to Figure 3 、 6 , 7, the outside of air pipe 8 is fixedly connected with support 9 inside, differential pressure sensor 10 is fixedly connected at the top of support 9, support ring 12 is fixedly connected with lifting cylinder 11 at the bottom of support ring 12, lifting cylinder 11 is connected with test cavity 17 bottom through support ring 12, the middle part of mobile platform 1 2 and mobile platform 2 3 is equipped with mounting groove 16 for installing test piece, the inner diameter of mounting groove 16 is same with air pipe 8, and the bottom of test cavity 17 is provided with hole for air pipe 8 to slide.

[0029] It needs to be explained that the utility model is provided with anemometer inside air pipe 8, when lifting cylinder 11 drives the top of air pipe 8 to correspond with the position of mounting groove 16, the wind enters air pipe 8, the dynamic pressure is detected by differential pressure sensor 10, the wind speed is measured by anemometer, and the air volume is calculated by combining the area of air outlet. The size of air volume directly reflects the air supply capacity of equipment, the height of air pipe 8 is adjusted by lifting cylinder 11, so that air pipe 8 can be connected with mobile platform 1 2 or mobile platform 2 3.

[0030] Please refer to Figure 4 、 6 , the top of mobile platform 1 2 is slidably connected with mobile platform 1 2 through guide rail 1, the inside of test cavity 17 is provided with transmission belt assembly 6, the transmission belt of transmission belt assembly 6 is fixedly connected with mobile platform 1 2, and the top of support platform 1 is provided with motor 7 for driving transmission belt assembly 6.

[0031] It needs to be explained that the transmission belt assembly 6 includes two pulleys and a transmission belt for driving the two pulleys, the two pulleys are rotatably installed in the support table 1 and the test cavity 17 through the transmission belt, the motor 7 is in transmission connection with one of the pulleys, the transmission belt is connected with the moving table one 2 through the metal plate, so as to drive the transmission belt to move by the motor 7, and the transmission belt drives the moving table one 2 to move horizontally.

[0032] Please refer to Figure 3 、 5 , 6, the two sides of the moving table two 3 are fixedly connected with the double-shaft air cylinder 4, the output end of the double-shaft air cylinder 4 is fixedly connected with the sliding sleeve 5, and the sliding sleeve 5 is slidably arranged at the top of the support table 1 through the guide rail two.

[0033] It needs to be explained that in the movement process, when the moving table one 2 and the moving table two 3 need to be staggered up and down, the telescopic end of the double-shaft air cylinder 4 is elongated, and under the action of force, the double-shaft air cylinder 4 drives the moving table two 3 to rise, so that the bottom of the moving table two 3 is higher than the top of the moving table one 2, and the position of the moving table one 2 and the moving table two 3 is switched.

[0034] Please refer to Figure 2 、 5 , the gear assembly includes the rack one 13 fixed on one side of the moving table one 2, the outer side of the rack one 13 is in meshing connection with the transmission gear 15, the transmission gear 15 is in rotary connection with the support table 1, the outer side of the transmission gear 15 is in meshing connection with the rack two 14, and the rack two 14 is fixedly connected with the sliding sleeve 5.

[0035] It needs to be explained that in the movement process of the moving table one 2, the transmission gear 15 is driven to rotate through the rack one 13, the rack two 14 is driven to move by the transmission gear 15, so that the moving table two 3 and the moving table one 2 are driven to move up and down by the sliding sleeve 5, and the position of the moving table one 2 and the moving table two 3 is switched by cooperation with the lifting of the double-shaft air cylinder 4.

[0036] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model.

[0037] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying a number of the indicated technical features, so the features with "first", "second", "third", "fourth" can be explicitly or implicitly include at least one of the features.

[0038] In the present application, unless otherwise expressly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0039] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A power airflow test machine characterized by: The utility model relates to a kind of test equipment, including: The equipment box with test cavity (17) in middle part; Supporting table (1) is placed outside the test cavity (17), the top of supporting table (1) is flush with the bottom of test cavity (17) and both constitute detection table; Mounting table is slidably placed on the top of the detection table, and the mounting table includes moving table one (2) and moving table two (3), the moving table one (2) and moving table two (3) are connected by gear assembly transmission, the outer side of moving table two (3) is equipped with double-shaft air cylinder (4) for driving moving table two (3) to lift, when moving, moving table one (2) and moving table two (3) are staggered sliding up and down to switch position; Air pipe (8) is lifted and placed in the bottom of test cavity (17), and the middle part of air pipe (8) is equipped with differential pressure sensor (10).

2. The power and airflow test machine of claim 1, wherein: The outer side of the air pipe (8) is fixedly connected with a support (9) inside, and the differential pressure sensor (10) is fixedly connected to the top of the support (9).

3. The power and airflow test machine of claim 1, wherein: The outer side of the air pipe (8) is fixedly connected with a support ring (12), the bottom of the support ring (12) is fixedly connected with a lifting cylinder (11), and the lifting cylinder (11) penetrates the support ring (12) and is connected with the bottom of the test cavity (17).

4. The power and airflow test machine of claim 1, wherein: The top of the moving table one (2) is slidably connected with the moving table one (2) through a guide rail one, the inside of the test cavity (17) is provided with a transmission belt assembly (6), the transmission belt of the transmission belt assembly (6) is fixedly connected with the moving table one (2), and the top of the supporting table (1) is provided with a motor (7) for driving the transmission belt assembly (6).

5. The power and airflow test machine of claim 1, wherein: Both sides of the moving table two (3) are fixedly connected with double-shaft air cylinder (4), the output end of the double-shaft air cylinder (4) is fixedly connected with a sliding sleeve (5), and the sliding sleeve (5) is slidably arranged on the top of the supporting table (1) through a guide rail two.

6. The power and airflow test machine of claim 5, wherein: The gear assembly includes a rack one (13) fixedly connected to one side of the moving table one (2), the outer side of the rack one (13) is meshingly connected with a transmission gear (15), the transmission gear (15) is rotatably connected with the supporting table (1), the outer side of the transmission gear (15) is meshingly connected with a rack two (14), and the rack two (14) is fixedly connected with the sliding sleeve (5).

7. The power and airflow test machine of claim 1, wherein: The middle part of the moving table one (2) and the moving table two (3) is equipped with mounting groove (16) for mounting test piece, the mounting groove (16) is same in size with the inner diameter of the air pipe (8), and the bottom of the test cavity (17) is provided with a hole for the air pipe (8) to slide.

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