Bracket-free fan performance testing device

Abstract

A support-free draught fan performance testing device comprises a three-axis adjustable rack and a rapid clamping mechanism fixed to the three-axis adjustable rack, the rapid clamping mechanism is used for rapid clamping of a support-free draught fan, and the three-axis adjustable rack is used for position adjustment of the clamped support-free draught fan in three directions; according to the support-free fan performance testing device, rapid clamping of the support-free fan can be achieved, meanwhile, the position of the clamped support-free fan can be flexibly adjusted, complete machine testing of the support-free fan is achieved, and manpower is saved; the device can be suitable for fans of various models, and is flexible in model changing and multipurpose.

Description

Technical Field

[0001] The utility model relates to a fan performance testing device without a support. Background Art

[0002] The whole-unit performance test of the fan without bracket is an important inspection process before the fan leaves the factory. At present, most of the whole-unit performance tests of the fan without bracket are completed in laboratories, test centers and other institutions. However, with the increase of test samples and types, installation difficulties, poor installation consistency, and too many resources consumed during the installation process are inevitable. On the other hand, laboratory resources are generally configured for the entire company. If laboratory resources are occupied for a single product, it will affect other projects. In view of this, it is necessary to develop a performance test device dedicated to the fan without bracket to relieve the pressure on the laboratory and play a role in reducing costs and increasing efficiency. Summary of the invention

[0003] In view of the shortcomings existing in the above problems, the utility model provides a fan performance testing device without a bracket.

[0004] To achieve the above-mentioned purpose, the utility model provides a performance test device for a fan without a support, comprising a three-axis adjustable frame, and a quick clamping mechanism fixed on the three-axis adjustable frame, wherein the quick clamping mechanism is used for quick clamping of the fan without a support, and the three-axis adjustable frame is used for adjusting the position of the fan without a support in three directions after clamping;

[0005] The three-axis adjustable frame includes a bottom frame, a lifting frame arranged on the bottom frame, left and right supporting plates slidably mounted on the lifting frame, and front and rear supporting plates slidably mounted on the left and right supporting plates. The lifting frame is connected to the bottom frame through a first transmission mechanism to realize the lifting function. The left and right supporting plates are connected to the lifting frame through a second transmission mechanism to slide in the left and right directions on the lifting frame. Brakes are arranged on the front and rear supporting plates. After the brakes are released, the front and rear supporting plates can slide in the front and rear directions on the left and right supporting plates.

[0006] The quick clamping mechanism includes an outer cylinder fixed to the front and rear support plates through a connecting frame, a locking rod rotatably arranged in the outer cylinder, a locking handwheel arranged at the rear end of the locking rod, and a locking piece arranged at the front end of the locking rod, wherein the locking piece has a locking part screwed to the locking rod and a connecting part for quick release connection with the fan without a bracket.

[0007] Furthermore, the first transmission mechanism includes a lifting guide rod, a lifting screw reducer, a lifting screw, and a first handwheel. There are four lifting guide rods, and the four lifting guide rods are fixed on the four corners of the bottom frame to play a guiding role. There are two lifting screw reducers and they are fixed on both sides of the lifting frame. The lifting screw can be rotatably built into the lifting screw reducer. The lower part of the lifting screw is connected to the bottom frame through a lifting fixing flange. The two lifting screw reducers are connected through a reducer connecting rod. The first handwheel is arranged at one of the lifting screw reducers.

[0008] Furthermore, the second transmission mechanism includes a screw slider assembly and a second hand wheel, the second hand wheel is fixed on the screw of the screw slider assembly, and the slider of the screw slider assembly is fixedly connected to the left and right support plates.

[0009] Furthermore, the left and right support plates are provided with a stainless steel sticky ruler, and the front and rear support plates are provided with a scale indicator ruler, and the position of the scale indicator ruler corresponds to the stainless steel sticky ruler.

[0010] Furthermore, the locking rod forms a rotatable structure with the outer cylinder through a bearing.

[0011] Furthermore, a guide block is installed in the outer cylinder, and the guide block is sleeved on the outside of the locking rod.

[0012] The beneficial effects of the utility model compared with the prior art are:

[0013] 1. The support-free fan performance test device involved in the solution can realize the rapid clamping of the support-free fan, and can flexibly adjust the position of the support-free fan after clamping, so as to realize the whole machine test of the support-free fan and save manpower; the device can be applied to multiple models of fans, flexibly change models, and use one machine for multiple purposes.

[0014] 2. The solution solves the difficulties and pain points of whole machine testing in the industry, making the operation status the most convenient and reliable. The three-axis adjustable frame and quick clamping mechanism can easily adjust the position of the tested fan in three dimensions, and is equipped with a scale indicator to ensure the consistency of installation during each test; high-precision guide rails are used to ensure the stability of the fan during testing; quick-release clamping mechanism is used to achieve rapid connection of the product and improve the efficiency of fan installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of a fan performance testing device without a bracket according to the utility model;

[0016] Figure 2 This is a cross-sectional view of a fan performance testing device without a support according to the utility model;

[0017] Figure 3 is a schematic diagram of a fan without a support involved;

[0018] Figure 4 This is a schematic diagram of the performance test.

[0019] In the figure: 1. Fan without support; 2. Quick clamping mechanism; 21. Locking piece; 211. Locking part; 212. Connecting part; 22. Outer cylinder; 23. Guide block; 24. Locking rod; 25. Bearing; 26. Locking handwheel; 3. Connecting frame; 4. Three-axis adjustable frame; 41. Bottom frame; 42. Lifting frame; 43. Left and right support plates; 44. Front and rear support plates; 45. First transmission mechanism; 451. Lifting guide rod; 452. Lifting screw reducer; 453. Lifting screw; 454. Lifting fixing flange; 455. First handwheel; 456. Reducer connecting rod; 46. Second transmission mechanism; 461. Screw slider assembly; 462. Second handwheel; 47. Brake; 48. Stainless steel sticky ruler; 49. Scale indicator ruler. DETAILED DESCRIPTION

[0020] like Figures 1 to 4 As shown, a performance test device for a fan without a support according to an embodiment of the utility model comprises a three-axis adjustable frame 4, a quick clamping mechanism 2 fixed on the three-axis adjustable frame 4, the quick clamping mechanism 2 is used for quick clamping of the fan without a support 1, and the three-axis adjustable frame 4 is used for adjusting the position of the fan without a support 1 in three directions after clamping; the three-axis adjustable frame 4 comprises a bottom frame 41, a lifting frame 42 arranged on the bottom frame 41, left and right supporting plates 43 slidably mounted on the lifting frame 42, and front and rear supporting plates 44 slidably mounted on the left and right supporting plates 43, the lifting frame 42 is connected to the bottom frame 41 through a first transmission mechanism 45 to realize the lifting function, the left The right support plate 43 is connected to the lifting frame 42 through the second transmission mechanism 46 so as to slide on the lifting frame 42 in the left and right directions. Brakes 47 are provided on the front and rear support plates 44. After the brakes are released, the front and rear support plates 44 can slide in the front and rear directions on the left and right support plates 43; the quick clamping mechanism 2 includes an outer cylinder 22 fixed to the front and rear support plates 44 through the connecting frame 3, a locking rod 24 rotatably arranged in the outer cylinder 22, a locking handwheel 26 provided at the rear end of the locking rod 24, and a locking member 21 provided at the front end of the locking rod 24. The locking member 21 has a locking portion 211 screwed to the locking rod 24 by a thread and a connecting portion 212 that realizes a quick-release connection with the bracketless fan 1.

[0021] More specifically, the first transmission mechanism 45 includes a lifting guide rod 451, a lifting screw reducer 452, a lifting screw 453, and a first hand wheel 455. There are four lifting guide rods 451, and the four lifting guide rods 451 are fixed on the four corners of the bottom frame 41 to play a guiding role. There are two lifting screw reducers 452 and they are fixed on both sides of the lifting frame 42. The lifting screw 453 is rotatable and built into the lifting screw reducer 452. The lower part of the lifting screw 453 is connected to the bottom frame 41 through a lifting fixing flange 454. The two lifting screw reducers 452 are connected through a reducer connecting rod 456. The first hand wheel 455 is arranged at one of the lifting screw reducers 452; the second transmission mechanism 46 includes a screw slider assembly 461 and a second hand wheel 462. The second hand wheel 462 is fixed on the screw of the screw slider assembly 461, and the slider of the screw slider assembly 461 is fixedly connected to the left and right support plates 43.

[0022] In addition, a stainless steel sticky ruler 48 is arranged on the left and right supporting plates 43, and a scale indicator ruler 49 is arranged on the front and rear supporting plates 44, and the position of the scale indicator ruler 49 corresponds to the stainless steel sticky ruler 48; the locking rod 24 forms a rotatable structure with the outer cylinder 22 through a bearing 25; a guide block 23 is also installed in the outer cylinder 22, and the guide block 23 is mounted on the outside of the locking rod 24.

[0023] The solution involves a bracketless fan performance test device, which can realize the rapid clamping of the bracketless fan, and can flexibly adjust the position of the bracketless fan after clamping, to realize the whole machine test of the bracketless fan and save manpower; the device is applicable to multiple models of fans, flexible model change, and multiple uses of one machine; the solution solves the difficulties and pain points of whole machine testing in the industry, making the operation status the most convenient and reliable, using a three-axis adjustable frame and a quick clamping mechanism, which can easily adjust the position of the tested fan in three dimensions, and is equipped with a scale indicator to ensure the consistency of installation during each test; using high-precision guide rails to ensure stability during the fan testing process; using a quick-release clamping mechanism to achieve rapid connection of the product and improve the efficiency of fan installation.

[0024] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0025] During the test, in order to make the tested fan without brackets fit in the center of the test panel, it is necessary to adjust the installation position of the tested fan without brackets. The three-axis adjustable frame is built with aluminum profiles and processed parts, which can be used in most occasions. With the design of the sliding structure, the three-axis adjustable frame can realize position adjustment in three directions: front and back, left and right, and up and down, and can quickly complete the installation and adjustment; the first hand wheel and the second hand wheel both use ergonomic handles to ensure comfort during operation; the overall structure of the three-axis adjustable frame is simple and aerodynamic, avoiding other interference factors caused by wind resistance during air flow during the test, and better ensuring that the fan is not affected by external factors during the test.

[0026] There is a conical extrusion structure between the locking piece and the outer cylinder. The locking rod is driven to rotate by the locking handwheel, which can quickly lock the fan without a bracket. While ensuring the installation reliability, it improves the installation efficiency of the measurement personnel and reduces the load on the installers.

[0027] During use, first fix the fan without a bracket to be tested on the connecting part 212 of the locking member 21 by bolts, then place the locking member in the inner cavity of the outer cylinder, and then turn the locking handle, the locking rod and the locking part 211 are engaged to pull the locking member and the tapered cavity of the outer cylinder to fit tightly. The locking part is built with an anti-loosening self-locking structure. When the locking handle reaches the required torque, the installation of the fan without a bracket to be tested is completed.

[0028] The test device is installed after it is connected to the test structure of the test center through the bottom frame.

[0029] The height can be adjusted by rotating the first hand wheel to rotate the jacking screws in the two jacking screw reducers, so that the lifting frame can move up and down within the length of the lifting guide rod to complete the adjustment of different heights; the use of jacking screw reducers can greatly save manpower and has self-locking ability.

[0030] The left and right positions are adjusted by driving the screw slider assembly through the second hand wheel. The slider of the screw slider assembly is fixed to the left and right supporting plates and drives the left and right supporting plates to slide synchronously.

[0031] When adjusting the front and rear position, you need to release the brake first, and then adjust the position directly by pushing. After adjusting to the appropriate position, restore the brake to the braking state.

[0032] The movement of the front and rear pallets can be determined by observing the relative position of the scale indicator on the stainless steel sticky ruler. This method can also be applied to the left and right pallets and the lifting frame. In this way, accurate position determination can ensure that the same model of unsupported fans to be tested can be quickly in the same position, shortening the test cycle.

[0033] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fan performance test device without a support, characterized in that: It comprises a three-axis adjustable frame (4), and a quick clamping mechanism (2) fixed on the three-axis adjustable frame (4), the quick clamping mechanism (2) being used for quick clamping of a fan without a support (1), and the three-axis adjustable frame (4) being used for adjusting the position of the fan without a support (1) in three directions after clamping; The three-axis adjustable frame (4) comprises a bottom frame (41), a lifting frame (42) arranged on the bottom frame (41), left and right supporting plates (43) slidably mounted on the lifting frame (42), and front and rear supporting plates (44) slidably mounted on the left and right supporting plates (43); the lifting frame (42) is connected to the bottom frame (41) via a first transmission mechanism (45) to achieve a lifting function; the left and right supporting plates (43) are connected to the lifting frame (42) via a second transmission mechanism (46) to slide on the lifting frame (42) in the left and right directions; the front and rear supporting plates (44) are provided with brakes (47); after the brakes are released, the front and rear supporting plates (44) can slide on the left and right supporting plates (43) in the front and rear directions; The quick clamping mechanism (2) comprises an outer cylinder (22) fixed to the front and rear support plates (44) via a connecting frame (3), a locking rod (24) rotatably arranged in the outer cylinder (22), a locking hand wheel (26) arranged at the rear end of the locking rod (24), and a locking member (21) arranged at the front end of the locking rod (24), wherein the locking member (21) comprises a locking portion (211) screwed to the locking rod (24) and a connecting portion (212) for realizing a quick-release connection with the fan (1) without a support.

2. A bracket-free fan performance testing device according to claim 1, characterized in that: The first transmission mechanism (45) comprises a lifting guide rod (451), a lifting screw reducer (452), a lifting screw (453), and a first hand wheel (455). There are four lifting guide rods (451), and the four lifting guide rods (451) are fixed on the four corners of the bottom frame (41) to play a guiding role. There are two lifting screw reducers (452) and they are fixed on both sides of the lifting frame (42). The lifting screw (453) is rotatably built into the lifting screw reducer (452). The lower part of the lifting screw (453) is connected to the bottom frame (41) through a lifting fixing flange (454). The two lifting screw reducers (452) are connected through a reducer connecting rod (456). The first hand wheel (455) is arranged at one of the lifting screw reducers (452).

3. A bracket-free fan performance testing device according to claim 2, characterized in that: The second transmission mechanism (46) comprises a screw slider assembly (461) and a second hand wheel (462); the second hand wheel (462) is fixed to a screw of the screw slider assembly (461); and the slider of the screw slider assembly (461) is fixedly connected to the left and right support plates (43).

4. The bracket-free fan performance testing device according to claim 3 is characterized in that: The left and right supporting plates (43) are provided with a stainless steel sticky ruler (48), and the front and rear supporting plates (44) are provided with a scale indicator ruler (49), and the position of the scale indicator ruler (49) corresponds to the stainless steel sticky ruler (48).

5. The bracket-free fan performance testing device according to claim 1, characterized in that: The locking rod (24) forms a rotatable structure with the outer cylinder (22) via a bearing (25).

6. The bracket-free fan performance testing device according to claim 5, characterized in that: A guide block (23) is also installed in the outer cylinder (22), and the guide block (23) is sleeved on the outside of the locking rod (24).

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