Universal test bench for fan

Abstract

The utility model discloses a universal test bench for a fan. The universal test bench comprises a bottom frame at the bottom layer, a test base arranged on the bottom frame and a bracket arranged in front of the test base, the bottom frame comprises a rear bottom frame arranged below the test base and a front bottom frame arranged in front of the rear bottom frame; the test base comprises a left side plate arranged on the left side edge of the rear bottom frame, a right side plate arranged on the right side edge of the rear bottom frame and a rear side plate arranged on the rear side edge of the rear bottom frame; and the bracket is vertically arranged on the bottom frame. According to the utility model, the universal test bench is designed, so that materials and working hours required by fan testing are saved, and the test bench is formed by splicing the section bars, and is simple in structure and convenient to manufacture.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan performance testing, and more specifically, it relates to a general test bench for fans. Background Art

[0002] As a common device in industrial and civil fields, the performance and reliability of a fan are directly related to the stability and efficiency of the entire system. To ensure the stable operation of the fan under various working conditions, strict testing is essential. As a key component in the testing process, the design and manufacturing technology of the fan test base directly affect the accuracy and reliability of the test results. In the early stage, the testing of fans mainly relied on intuitive observation and empirical judgment, lacking precise measuring tools and standardized testing procedures. This led to greater subjectivity and uncertainty in the test results. With the progress of technology, modern fan testing technology has developed to the point where it can accurately measure various performance indicators of fans, such as air volume, air pressure, efficiency, noise, etc. The testing process has become more standardized and automated, improving the accuracy and repeatability of the test. The fan test base is the core component of the fan test system, and its functions mainly include: Stability: Provide stable support to ensure that the fan does not displace or vibrate during the test. Compatibility: Be able to adapt to different models and sizes of fans, with good versatility. Adjustability: Allow fine-tuning of the installation angle and position of the fan to meet different test requirements. Safety: Ensure the safety of operators during the test and prevent accidents. In the prior art, each new product needs to undergo performance testing before production. For each fan produced, a dedicated test bench is required, which not only wastes materials but also wastes working hours. Therefore, the design of a general test bench has attracted attention. Summary of the Utility Model

[0003] To solve the technical problem of wasting materials and working hours in the design of the test bench in the prior art, the utility model provides the following technical solutions:

[0004] A general test bench for fans, comprising a bottom frame at the bottom layer, a test base arranged on the bottom frame, and a bracket arranged in front of the test base;

[0005] The bottom frame includes a rear bottom frame arranged under the test base and a front bottom frame arranged in front of the rear bottom frame;

[0006] The test base includes a left side plate arranged on the left side edge of the rear bottom frame, a right side plate arranged on the right side edge of the rear bottom frame, and a rear side plate arranged on the rear side edge of the rear bottom frame; The bracket is vertically arranged on the bottom frame.

[0007] Furthermore, both the rear bottom frame and the front bottom frame are rectangular frames. The length of the short side of the rear bottom frame is equal to the length of the long side of the front bottom frame. Both the front bottom frame and the rear bottom frame are welded by several metal plates with flanging configurations, and the front short side of the rear bottom frame and the rear long side of the front bottom frame are the same metal plate.

[0008] Furthermore, the bottom edge of the left side plate of the test base is welded to the upper surface of the left long side of the rear bottom frame, the bottom edge of the right side plate is welded to the upper surface of the right long side of the rear bottom frame, and the bottom edge of the rear side plate is welded to the upper surface of the rear long side of the rear bottom frame. The rear side edges of the left side plate and the right side plate are respectively welded to the left and right side edges of the rear side plate.

[0009] Furthermore, a front cross beam is provided in the front bottom frame, and a rear cross beam is provided in the rear bottom frame. The front cross beam is arranged parallel to the short side of the front bottom frame, and the rear cross beam is arranged parallel to the short side of the rear bottom frame;

[0010] There are two front cross beams, namely the left front cross beam and the right front cross beam, and connection holes are provided on the left front cross beam and the right front cross beam;

[0011] There are three rear cross beams, namely the first rear cross beam, the second rear cross beam, and the third rear cross beam. A trapezoidal bracket is provided on the third rear cross beam, and the bottom edge of the trapezoidal bracket is welded and fixed to the upper surface of the third rear cross beam.

[0012] Furthermore, the bracket is arranged on the front short side of the rear bottom frame. The bracket includes a bracket left rod and a bracket right rod vertically welded on the front short side of the rear bottom frame and a bracket upper rod connecting the bracket left rod and the bracket right rod; the bottom ends of the bracket left rod and the bracket right rod are welded to the front short side of the rear bottom frame, the left end of the bracket upper rod is welded and fixed to the top end of the bracket left rod, and the right end is welded and fixed to the top end of the bracket right rod.

[0013] Furthermore, a bracket horizontal connecting rod is also provided between the bracket left rod and the bracket right rod. The bracket horizontal connecting rod is L-shaped, and a number of fixing holes are vertically penetrated through it. Two bracket vertical connecting rods are welded and fixed to the lower surface of its horizontal end;

[0014] A number of bracket fixing rods are also provided between the bracket left rod and the bracket right rod. The bracket fixing rods are also L-shaped, and a number of fixing holes are vertically penetrated through their vertical ends. A number of fixing holes are also horizontally penetrated through the rod bodies of the bracket left rod and the bracket right rod; the fixing holes are used to fix the fan to be tested through fixing pieces.

[0015] Furthermore, the test base further includes a first fixed panel and a second fixed panel arranged on the left side plate and the right side plate. The first fixed panel is arranged behind the second fixed panel;

[0016] The first fixed panel is a rectangular plate, the rear side edge of which is fixedly welded to the top edge of the rear side plate, the front side edge of which is fixedly welded to the rear surface of the trapezoidal bracket, and the left and right side edges of which are respectively fixedly welded to the top edges of the left side plate and the right side plate;

[0017] The second fixed panel is also a rectangular plate, the rear side edge of which is fixedly welded to the top edge of the trapezoidal bracket, the upper surface of which is fixedly welded to the bottom end of the vertical connecting rod of the bracket, and the left and right side edges of which are respectively fixedly welded to the top edges of the left side plate and the right side plate.

[0018] Furthermore, a plurality of trapezoidal reinforcing ribs are arranged on the lower surfaces of the first fixed panel and the second fixed panel. The top edges of the trapezoidal reinforcing ribs are welded to the lower surfaces of the first fixed panel or the second fixed panel, and the left and right side edges are respectively welded to the inner surfaces of the left side plate and the right side plate, so as to stabilize the first fixed panel and the second fixed panel.

[0019] Furthermore, a motor and a torque meter are installed on the first fixed panel. The motor is used to provide power for the fan to be tested, the torque meter is used to measure the accuracy and stability of the fan, and a gearbox is installed on the second fixed panel for connecting the fan to be tested.

[0020] By designing a universal test bench in the utility model, the materials and man-hours required for fan testing are saved, and the test bench is formed by splicing profiles, with a simple structure and being easy to manufacture. Description of the Drawings

[0021] Figure 1 is the overall schematic diagram of the universal test bench for the fan in the utility model.

[0022] Figure 2 is the overall exploded schematic diagram of the universal test bench for the fan in the utility model.

[0023] Figure 3 is the structural schematic diagram of the bottom frame in the universal test bench for the fan in the utility model.

[0024] Figure 4 is the assembly schematic diagram of the bottom frame and the bracket in the universal test bench for the fan in the utility model.

[0025] Figure 5 is the assembly schematic diagram of the bottom frame, the bracket and the fixed panel in the universal test bench for the fan in the utility model.

[0026] Figure 6 is the working state schematic diagram of the universal test bench for the fan in the utility model.

[0027] In the figure:

[0028] 1 - Bottom frame, 2 - Test base, 3 - Bracket, 4 - Motor, 5 - Torque meter, 6 - Gearbox;

[0029] 11 - Rear bottom frame, 12 - Front bottom frame, 21 - Left side plate, 22 - Right side plate, 23 - Rear side plate;

[0030] 121 - Front cross beam, 111 - Rear cross beam, 121a - Left front cross beam, 121b - Right front cross beam, 111a - First rear cross beam, 111b - Second rear cross beam, 111c - Third rear cross beam, 13 - Trapezoidal bracket, 14 - Trapezoidal stiffener.

[0031] 31 - Left rod of the bracket, 32 - Right rod of the bracket, 33 - Upper rod of the bracket, 34 - Horizontal connecting rod of the bracket, 35 - Vertical connecting rod of the bracket, 36 - Fixed rod of the bracket, 24 - First fixed panel, 25 - Second fixed panel. Specific embodiments

[0032] The following combines the accompanying drawings to clearly and completely describe the technical solutions of the present invention with specific embodiments. It should be understood that the described embodiments are only used to illustrate the present invention, rather than to limit the scope of the present invention.

[0033] Combined with Figure 1 and Figure 2 , a general test bench for a fan of the present invention includes a bottom frame 1 at the bottom layer, a test base 2 provided on the bottom frame 1, and a bracket 3 provided in front of the test base 2;

[0034] The bottom frame 1 includes a rear bottom frame 11 provided under the test base 2 and a front bottom frame 12 provided in front of the rear bottom frame 11;

[0035] The test base 2 includes a left side plate 21 provided on the left side edge of the rear bottom frame 11, a right side plate 22 provided on the right side edge of the rear bottom frame 11, and a rear side plate 23 provided on the rear side edge of the rear bottom frame 11; the bracket 3 is vertically provided on the bottom frame 1.

[0036] Furthermore, both the rear bottom frame 11 and the front bottom frame 12 are rectangular frames. The short side length of the rear bottom frame 11 is equal to the long side length of the front bottom frame 12. Both the front bottom frame 12 and the rear bottom frame 11 are welded by several metal plates with folded edges. The front short side of the rear bottom frame 11 and the rear long side of the front bottom frame 12 are the same metal plate.

[0037] Further, the bottom edge of the left side plate 21 of the test base 2 is welded to the upper surface of the long side on the left of the rear bottom frame 11, the bottom edge of the right side plate 22 is welded to the upper surface of the long side on the right of the rear bottom frame 11, the bottom edge of the rear side plate 23 is welded to the upper surface of the long side at the rear of the rear bottom frame 11, and the rear side edges of the left side plate 21 and the right side plate 22 are respectively welded to the left and right side edges of the rear side plate 23.

[0038] Further, in combination with Figure 3 and Figure 4 , a plurality of front cross beams 121 are provided in the front bottom frame 12, a plurality of rear cross beams 111 are provided in the rear bottom frame 11, the front cross beams 121 are arranged parallel to the short side of the front bottom frame 12, and the rear cross beams 111 are arranged parallel to the short side of the rear bottom frame 11;

[0039] Preferably, there are two front cross beams 121, namely a left front cross beam 121a and a right front cross beam 121b, and connection holes are formed in the left front cross beam 121a and the right front cross beam 121b;

[0040] Preferably, there are three rear cross beams 111, namely a first rear cross beam 111a, a second rear cross beam 111b and a third rear cross beam 111c. A trapezoidal bracket 13 is provided on the third rear cross beam 111c, and the bottom edge of the trapezoidal bracket 13 is welded and fixed to the upper surface of the third rear cross beam 111c.

[0041] Further, the bracket 3 is arranged on the front short side of the rear bottom frame 11. The bracket 3 includes a bracket left rod 31 and a bracket right rod 32 vertically welded to the front short side of the rear bottom frame 11 and a bracket upper rod 33 connecting the bracket left rod 31 and the bracket right rod 32; the bottom ends of the bracket left rod 31 and the bracket right rod 32 are welded to the front short side of the rear bottom frame 11, the left end of the bracket upper rod 33 is welded and fixed to the top end of the bracket left rod 31, and the right end is welded and fixed to the top end of the bracket right rod 32;

[0042] Further, a bracket horizontal connecting rod 34 is also arranged between the bracket left rod 31 and the bracket right rod 32. The bracket horizontal connecting rod 34 is L-shaped, and a plurality of fixing holes (not shown in the figure) are formed through the vertical end thereof. Two bracket vertical connecting rods 35 are welded and fixed to the lower surface of the horizontal end thereof;

[0043] A plurality of bracket fixing rods 36 are also arranged between the bracket left rod 31 and the bracket right rod 32. The bracket fixing rods 36 are also L-shaped, and a plurality of fixing holes (not shown in the figure) are formed through the vertical end thereof. A plurality of fixing holes are also formed through the rod bodies of the bracket left rod 31 and the bracket right rod 32 in the horizontal direction; the fixing holes are used to fix the fan to be tested through fixing pieces.

[0044] Further, in combination withFigure 2 and Figure 5 The test base 2 further includes a first fixed panel 24 and a second fixed panel 25 disposed on the left side plate 21 and the right side plate 22, and the first fixed panel 24 is disposed behind the second fixed panel 25;

[0045] The first fixed panel 24 is a rectangular plate, the rear side edge of which is welded and fixed to the top edge of the rear side plate 23, the front side edge of which is welded and fixed to the rear surface of the trapezoidal bracket 13, and the left and right side edges of which are respectively welded and fixed to the top edges of the left side plate 21 and the right side plate 22;

[0046] The second fixed panel 25 is also a rectangular plate, the rear side edge of which is welded and fixed to the top edge of the trapezoidal bracket 13, the upper surface of which is welded and fixed to the bottom end of the vertical connecting rod 35 of the bracket, and the left and right side edges of which are respectively welded and fixed to the top edges of the left side plate 21 and the right side plate 22;

[0047] Furthermore, a plurality of trapezoidal reinforcing ribs 14 are provided on the lower surfaces of the first fixed panel 24 and the second fixed panel 25. The top edges of the trapezoidal reinforcing ribs 14 are welded to the lower surfaces of the first fixed panel 24 or the second fixed panel 25, and the left and right side edges are respectively welded and fixed to the inner surfaces of the left side plate 21 and the right side plate 22 for stabilizing the first fixed panel 24 and the second fixed panel 25.

[0048] Furthermore, in combination with Figure 5 and Figure 6 , a motor 4 and a torque meter 5 are installed on the first fixed panel 24. The motor 4 is used to provide power for the fan to be tested, the torque meter 5 is used to measure the accuracy and stability of the fan, and a gearbox 6 is installed on the second fixed panel 25 for connecting the fan to be tested.

[0049] For the universal test bench for fans of the present utility model, when fan performance testing is required, the housing of the fan 6 to be tested is fixed by the bracket 3, the motor is started, and the test experiment is carried out. When other fans need to be tested, only by replacing the housing, impeller, air inlet, etc. of the fan to be tested, the test can be carried out again.

[0050] The above specific embodiments further elaborate the purpose, technical solutions and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A general test bench for a fan, characterized in that It includes a bottom frame at the bottom layer, a test base set on the bottom frame, and a bracket set in front of the test base; The bottom frame includes a rear bottom frame set under the test base and a front bottom frame set in front of the rear bottom frame; The test base includes a left side plate set on the left side edge of the rear bottom frame, a right side plate set on the right side edge of the rear bottom frame, and a rear side plate set on the rear side edge of the rear bottom frame; the bracket is vertically set on the bottom frame.

2. The general test bench for a fan according to claim 1, wherein, Both the rear bottom frame and the front bottom frame are rectangular frames. The length of the short side of the rear bottom frame is equal to the length of the long side of the front bottom frame. Both the front bottom frame and the rear bottom frame are welded by several metal plates with folded edges. The front short side of the rear bottom frame and the rear long side of the front bottom frame are the same metal plate.

3. The general test bench for a fan according to claim 1, characterized in that, The bottom edge of the left side plate of the test base is welded to the upper surface of the left long side of the rear bottom frame. The bottom edge of the right side plate is welded to the upper surface of the right long side of the rear bottom frame. The bottom edge of the rear side plate is welded to the upper surface of the rear long side of the rear bottom frame. The rear side edges of the left side plate and the right side plate are respectively welded to the left and right side edges of the rear side plate.

4. The general test bench for a fan according to claim 1, characterized in that, A front cross beam is set in the front bottom frame, and a rear cross beam is set in the rear bottom frame. The front cross beam is set parallel to the short side of the front bottom frame, and the rear cross beam is set parallel to the short side of the rear bottom frame; There are two front cross beams, namely a left front cross beam and a right front cross beam. Connecting holes are opened on the left front cross beam and the right front cross beam; There are three rear cross beams, namely a first rear cross beam, a second rear cross beam, and a third rear cross beam. A trapezoidal bracket is set on the third rear cross beam. The bottom edge of the trapezoidal bracket is welded and fixed to the upper surface of the third rear cross beam.

5. The general test bench for a fan according to claim 1, characterized in that, The bracket is set on the front short side of the rear bottom frame. The bracket includes a bracket left rod and a bracket right rod vertically welded on the front short side of the rear bottom frame, and a bracket upper rod connecting the bracket left rod and the bracket right rod; the bottom ends of the bracket left rod and the bracket right rod are welded to the front short side of the rear bottom frame, and the left end of the bracket upper rod is welded and fixed to the top end of the bracket left rod, and the right end is welded and fixed to the top end of the bracket right rod.

6. The general test bench for a fan according to claim 5, characterized in that, A bracket horizontal connecting rod is also set between the bracket left rod and the bracket right rod. The bracket horizontal connecting rod is L-shaped. A number of fixing holes are penetrated through its vertical end, and two bracket vertical connecting rods are welded and fixed to the lower surface of its horizontal end; A number of bracket fixing rods are also set between the bracket left rod and the bracket right rod. The bracket fixing rods are also L-shaped. A number of fixing holes are penetrated through its vertical end. A number of fixing holes are also penetrated through the rod bodies of the bracket left rod and the bracket right rod along the horizontal direction; the fixing holes are used to fix the fan to be tested through fixing parts.

7. The general test bench for a fan according to claim 4, characterized in that The test base also includes a first fixed panel and a second fixed panel set on the left side plate and the right side plate. The first fixed panel is set behind the second fixed panel; The first fixed panel is a rectangular plate. Its rear side edge is welded and fixed to the top edge of the rear side plate. Its front side edge is welded and fixed to the rear surface of the trapezoidal bracket. Its left and right side edges are respectively welded and fixed to the top edges of the left side plate and the right side plate; The second fixed panel is also a rectangular plate, the rear side edge of which is welded and fixed to the top edge of the trapezoidal bracket, the upper surface of which is welded and fixed to the bottom end of the vertical connecting rod of the bracket, and the left and right side edges of which are respectively welded and fixed to the top edges of the left side plate and the right side plate.

8. The general test bench for a fan according to claim 7, characterized in that, A plurality of trapezoidal reinforcing ribs are arranged on the lower surfaces of the first fixed panel and the second fixed panel. The top edges of the trapezoidal reinforcing ribs are welded to the lower surfaces of the first fixed panel or the second fixed panel, and the left and right side edges are respectively welded and fixed to the inner surfaces of the left side plate and the right side plate, for stabilizing the first fixed panel and the second fixed panel.

9. The general test bench for a fan according to claim 7, characterized in that, A motor and a torque meter are installed on the first fixed panel. The motor is used to provide power for the fan to be tested, and the torque meter is used to measure the accuracy and stability of the fan. A gear box is installed on the second fixed panel for connecting the fan to be tested.

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