A jig suitable for cross-flow fan detection

Abstract

The utility model provides a kind of suitable for crossflow fan detection's jig, it is related to detection equipment, comprising: base, first moving plate and second moving plate are provided with in the top of base, first moving plate and second moving plate can be mutually far away or close to each other;The side of first moving plate and second moving plate is set to the connecting structure for detachably installing crossflow fan;First rotating mechanism is set on first moving plate, and with the transmission connection of connecting structure located on first moving plate, first rotating mechanism drives the rotation of connecting structure on first moving plate to drive crossflow fan to rotate, the driving rotation of connecting structure on second moving plate is driven by crossflow fan, in use, first rotating mechanism drives connecting structure to drive rotation, at this time, crossflow fan installed between two connecting structures rotates around the shaft of crossflow fan under the drive of first rotating mechanism, and other detection sensors can be used to determine whether crossflow fan is normal.

Description

Technical Field

[0001] This utility model relates to testing equipment, and in particular to a fixture suitable for testing cross-flow fans. Background Technology

[0002] A cross-flow fan includes an impeller and a shaft. The impeller is positioned circumferentially on the shaft, driving airflow so that it flows along the fan's axial direction. Currently, cross-flow fans need to undergo performance testing before leaving the factory to determine if they can output air normally. Therefore, this application provides a fixture specifically designed for testing cross-flow fans. Utility Model Content

[0003] To achieve the above objectives, embodiments of this utility model provide a fixture suitable for testing cross-flow fans, comprising:

[0004] The base has a first movable plate and a second movable plate on top of it. The first movable plate and the second movable plate can move away from or close to each other. The facing sides of the first movable plate and the second movable plate are provided with a connection structure for detachably installing a cross-flow fan.

[0005] A first rotating mechanism is mounted on the first moving plate and is connected to a connecting structure located on the first moving plate. The first rotating mechanism drives the connecting structure on the first moving plate to rotate, thereby driving the cross-flow fan to rotate. The connecting structure located on the second moving plate is driven to rotate by the cross-flow fan.

[0006] Preferably, the base has a cavity along its length, and the upper surface of the base is provided with a groove communicating with the cavity, the length direction of the groove being consistent with the length direction of the cavity;

[0007] A motion mechanism is provided inside the cavity. The motion mechanism includes a guide rod, which is disposed inside the cavity and its length direction is consistent with the length direction of the cavity. A first slide block and a second slide block are slidably disposed on the guide rod. The first slide block passes through the groove and is connected to a first movable plate, and the second slide block passes through the groove and is connected to a second movable plate.

[0008] The first slide block is subjected to a first force that slides on the guide rod, and the second slide block is subjected to a second force and a spring force that slide on the guide rod. The first force and the second force are equal in magnitude and opposite in direction. The second force and the spring force are opposite in direction. When the second force is greater than the spring force, the first slide block and the second slide block move closer together. When the second force is less than the spring force, the first slide block and the second slide block move further apart.

[0009] Preferably, the first force is generated by a linear module, which is disposed between the first slide and the cavity wall forming the cavity, and the linear module is connected to the first slide to generate a first force that pushes the slide.

[0010] Preferably, the second force is generated by a guide wheel assembly, which includes a guide wheel and a belt. The guide wheel is disposed at the end of the first slide away from the second slide. One end of the belt is fixed to the side of the first slide away from the second slide, and the other end passes around the guide wheel and is connected to the side of the second slide facing the first slide.

[0011] The elastic force is generated by an elastic element, which is disposed between the second slide and the cavity wall forming the cavity and is connected to the second slide.

[0012] Preferably, the linear module includes a lead screw and a second rotating mechanism that drives the lead screw to rotate. The lead screw includes a threaded section and a smooth shaft section, the threaded section and the smooth shaft section having the same length. The first slide is screwed to the threaded section, and the second slide slides on the smooth shaft section.

[0013] Preferably, there are two grooves and two guide rods.

[0014] Preferably, the connecting structure includes a connecting shaft, which is rotatably mounted on the first moving plate or the second moving plate. Each of the two connecting shafts has a sleeve at one end close to the other. Each sleeve has a limiting hole at the end furthest from the connecting shaft. The limiting hole is arranged along the radial direction of the sleeve. A limiting bolt is screwed into the limiting hole. The sleeve is used to fit over the shaft of the cross-flow fan, and the limiting bolt is used to abut against the shaft of the cross-flow fan.

[0015] The connecting shaft located on the first moving plate is connected to the first rotating mechanism via a transmission connection.

[0016] Preferably, a mounting plate is further provided on the first movable plate, the mounting plate being vertically disposed on the side of the first movable plate away from the second movable plate, and the first rotating mechanism is mounted on the first movable plate.

[0017] The above-mentioned solution of this utility model has the following beneficial effects:

[0018] This application provides a fixture specifically for cross-flow fans. In use, the first rotating mechanism drives the connecting structure to rotate actively. At this time, the cross-flow fan installed between the two connecting structures rotates around the axis of the cross-flow fan under the drive of the first rotating mechanism. With the assistance of other detection sensors, it can be determined whether the cross-flow fan is discharging air normally.

[0019] In this application, the distance between the first moving plate and the second moving plate is variable, which can accommodate cross-flow fans of different lengths, and the connection structure is detachably connected to the shaft of the cross-flow fan, making it convenient to replace different cross-flow fans.

[0020] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] Figure 1 This is the front view of this utility model;

[0022] Figure 2 This is an isometric view of the base;

[0023] Figure 3 yes Figure 2 A diagram showing the hidden base in the middle;

[0024] Figure 4 This is a schematic diagram of the shaft connecting the structure and the cross-flow fan;

[0025] Figure 5 This is a simplified analytical diagram of the motion mechanism and the two moving plates.

[0026] [Explanation of Labels in the Attached Image]

[0027] 100-Base, 110-First Moving Plate, 120-Second Moving Plate, 130-Connecting Structure, 131-Connecting Shaft, 132-Sleeve, 133-Limiting Hole, 134-Limiting Bolt, 140-Groove, 200-First Rotating Mechanism, 300-Motion Mechanism, 310-Guide Rod, 320-First Slide, 330-Second Slide, 340-Guide Wheel, 350-Belt, 360-Elastic Element, 370-Lead Screw, 380-Second Rotating Mechanism, 390-Mounting Plate

[0028] A - Axial flow fan, A0 - Shaft of the axial flow fan. Detailed Implementation

[0029] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figure 1-5As shown, an embodiment of this utility model provides a fixture suitable for testing cross-flow fans, including a base 100 and a first rotating mechanism 200. A first movable plate 110 and a second movable plate 120 are arranged above the base 100. Both the first movable plate 110 and the second movable plate 120 are located along the length of the base 100. The first movable plate 110 and the second movable plate 120 can move closer to or further away from each other. A connecting structure 130 is provided on the facing side of the first movable plate 110 and the second movable plate 120. The connecting structure 130 allows for quick and detachable installation and removal of the cross-flow fan A. The aforementioned first rotating mechanism 200 is disposed on the first moving plate 110, and the first rotating mechanism 200 is connected to the connecting structure 130 located on the first moving plate 110. The first rotating mechanism 200 drives the connecting structure 130 on the first moving plate 110 to rotate, that is, the connecting structure 130 on the first moving plate 110 is the active structure. Since the two ends of the cross-flow fan A are respectively connected to the connecting structure 130, the connecting structure 130 located on the second moving plate 120 can be driven to rotate, that is, the connecting structure 130 on the second moving plate 120 is the driven structure.

[0031] The aforementioned base 100 has a cavity arranged along the length of the base 100, and a groove 140 communicating with the cavity is provided on the upper surface of the base 100. The length direction of the groove 140 is consistent with the length direction of the cavity. In this application, the cavity is cuboid and the groove 140 is an oblong groove.

[0032] A motion mechanism 300 is provided within the cavity to move the first movable plate 110 and the second movable plate 120 closer to or further away from each other. This motion mechanism 300 includes a guide rod 310, which is disposed within the cavity and aligned with its length. For ease of description, the direction of the first movable plate 110 is defined as its front end, and the direction of the second movable plate 120 is defined as its rear end. The two ends of the guide rod 310 are fixed to the front and rear ends of the cavity, respectively. A first slide block 320 and a second slide block 330 are mounted on the guide rod 310, allowing them to move along the guide rod 310. The upper end of the first slide block 320 protrudes through a groove 140 and connects to the first movable plate 110, while the second slide block 330 protrudes through the groove 140 and connects to the second movable plate 120.

[0033] Reference Figure 3 and Figure 5The first slide block 320 and the second slide block 330 are subjected to different forces on the guide rod 310, thereby enabling the first slide block 320 and the second slide block 330 to move closer or further apart. Specifically, the first slide block 320 is subjected to a first force, under which it can slide on the guide rod 310. The second slide block 330 is subjected to a second force and a spring force, wherein the first force and the second force are equal in magnitude and opposite in direction; the second force and the spring force are opposite in direction.

[0034] When the second force is greater than the elastic force, the first slide 320 and the second slide 330 move closer together; when the second force is less than the elastic force, the first slide 320 and the second slide 330 move further apart.

[0035] The first force is generated by the linear module, which is set on the first slide block 320 and the cavity wall forming the cavity. That is, one end of the linear module is fixedly set at the front end of the cavity, and the other end of the linear module is connected to the first slide block 320. The first linear module generates the first force, thereby pushing the first slide block 320 to move towards the second slide block 330 or away from the second slide block 330.

[0036] The second force is generated by the guide wheel assembly, which includes a guide wheel 340 and a belt 350. The guide wheel 340 is located at the end of the first slide block 320 away from the second slide block 330, that is, the guide wheel 340 is located at the front end of the first slide block 320. Preferably, the guide wheel 340 is lower than the first slide block 320. One end of the belt 350 is fixed to the side of the first slide block 320 away from the second slide block 330, that is, one end of the belt 350 is fixed to the front end of the first slide block 320. The other end passes around the guide wheel 340 and connects to the side of the second slide block 330 facing the first slide block 320, that is, the other end of the belt 350 is fixed to the front end of the second slide block 330.

[0037] The aforementioned elastic force is generated by the elastic element 360, which is disposed between the second slide 330 and the cavity wall forming the cavity and connected to the second slide 330. Preferably, the elastic element 360 is a spring. The elastic element 360 is in a stretched state when the first slide 320 and the second slide 330 are at their maximum interval stroke.

[0038] When installing the cross-flow fan A, the linear module operates, generating a first force. Driven by this force, the first slide 320 moves backward. As the first slide 320 moves backward, the second slide 330 moves forward under the pull of the belt 350, causing the first and second slides 320 to move closer together. Under the action of the second slide 330, the elastic element 360 is stretched beyond the length of the first and second slides 320 when they are at their maximum interval. When the linear module stops moving, because it typically has a self-locking function, the relative positions of the first and second slides 320 remain unchanged. During the period when the first slide 320 and the second slide 330 are close to each other, the cross-flow fan A is suspended between the first moving plate 110 and the second moving plate 120. When the distance between the first moving plate 110 and the second moving plate 120 is close to the length of the cross-flow fan A, the shaft A0 of the cross-flow fan is connected by the connecting structure 130 to realize the installation of the cross-flow fan A.

[0039] When the cross-flow fan A is removed after the inspection, the connecting structure 130 is first disassembled from the shaft A0 of the cross-flow fan. Then, the linear module is driven to generate a first force. At this time, the first force is opposite in direction to the force when the cross-flow fan A was installed. That is, the first force pulls the first slide 320 to the front end. During the forward sliding of the first slide 320, the second force generated by the belt 350 on the second slide 330 decreases. The elastic element 360 has a tendency to return to its original shape and generates a backward elastic force. Under the combined action of the elastic force and the second force, the second slide 330 moves to the rear end, thereby separating the first slide 320 and the second slide 330. The operator catches the cross-flow fan A, which has detached from the first moving plate 110 and the second moving plate 120.

[0040] This application also provides a specific linear module, which includes a lead screw 370 and a second rotating mechanism 380. The second rotating mechanism 380 is disposed on the cavity wall forming the cavity, that is, the second rotating mechanism 380 is fixed to the front end of the first slide block 320. The rear end of the lead screw 370 is rotatably connected to the cavity wall of the cavity. The front end of the lead screw 370 passes through the second slide block 330 and the first slide block 320 in sequence and is connected to the second rotating mechanism 380 for transmission.

[0041] Furthermore, the lead screw 370 has a threaded section and a smooth shaft section, wherein the smooth shaft section is located at the rear of the lead screw 370 and the threaded section is located at the front of the lead screw 370. The first slide 320 is screwed to the threaded section and the second slide 330 is slidably connected to the smooth shaft section. When the second rotating mechanism 380 is working, the lead screw 370 rotates, and the first slide 320 located on the threaded section moves linearly, thereby driving the second slide 330 located on the smooth shaft section to move accordingly.

[0042] Preferably, the lengths of both the optical axis section and the threaded section are half the length of the lead screw 370.

[0043] Preferably, both the first rotating mechanism 200 and the second rotating mechanism 380 are electric motors.

[0044] Preferably, the rear end of the lead screw 370 is rotatably connected to the cavity wall via a bearing.

[0045] Preferably, there are two grooves 140 and two guide rods 310, with the two guide rods 310 located directly below the two grooves 140 respectively, and the two grooves 140 are arranged in parallel.

[0046] Preferably, the aforementioned connecting structure 130 includes a connecting shaft 131, which passes through the first movable plate 110 or the second movable plate 120, and the connecting shaft 131 can rotate relative to the first movable plate 110 and the second movable plate 120. Preferably, a bearing is provided between the connecting shaft 131 and the first movable plate 110 and the second movable plate 120 to reduce friction when the connecting shaft 131 rotates. A sleeve 132 is also provided at one end of the two connecting shafts 131 that are close to each other. The sleeve 132 is also provided at the end away from the connecting shaft 131, and the limiting hole 133 is arranged along the radial direction of the sleeve 132. A limiting bolt 134 is screwed into the limiting hole 133. The aforementioned first rotating mechanism 200 is connected to the end of the connecting shaft 131 located on the first positioning plate that does not have the sleeve 132.

[0047] When connecting the shaft A0 of the cross-flow fan, the sleeve 132 is sleeved on the outside of the shaft A0 of the cross-flow fan. By tightening the limiting bolt 134 in the limiting hole 133, the limiting bolt 134 moves towards the center of the sleeve 132 to radially press against the shaft A0 of the cross-flow fan to achieve its fixation.

[0048] A mounting plate 390 is also provided on the first movable plate 110. The mounting plate 390 is vertically arranged on the first movable plate 110 and is located at the rear end of the first movable plate 110. The first rotating mechanism 200 is installed on the first movable plate 110.

[0049] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A fixture suitable for testing cross-flow fans, characterized in that, include: A base (100) is provided with a first movable plate (110) and a second movable plate (120) above the base (100). The first movable plate (110) and the second movable plate (120) can move away from or close to each other. A connection structure (130) for detachably installing a cross-flow fan (A) is provided on the side of the first movable plate (110) and the second movable plate (120) facing each other. The first rotating mechanism (200) is disposed on the first moving plate (110) and is connected to the connecting structure (130) located on the first moving plate (110) in a transmission manner. The first rotating mechanism (200) drives the connecting structure (130) on the first moving plate (110) to rotate so as to drive the cross-flow fan (A) to rotate. The connecting structure (130) located on the second moving plate (120) is driven to rotate by the cross-flow fan (A).

2. The fixture for testing cross-flow fans according to claim 1, characterized in that: The base (100) has a cavity along its length, and the upper surface of the base (100) is provided with a groove (140) communicating with the cavity. The length direction of the groove (140) is consistent with the length direction of the cavity. A motion mechanism (300) is provided inside the cavity. The motion mechanism (300) includes a guide rod (310). The guide rod (310) is disposed inside the cavity and its length direction is consistent with the length direction of the cavity. A first slide block (320) and a second slide block (330) are slidably disposed on the guide rod (310). The first slide block (320) passes through the groove (140) and is connected to the first moving plate (110). The second slide block (330) passes through the groove (140) and is connected to the second moving plate (120). The first slide (320) is subjected to a first force that slides on the guide rod (310), and the second slide (330) is subjected to a second force and a spring force that slide on the guide rod (310). The first force and the second force are equal in magnitude and opposite in direction. The second force and the spring force are opposite in direction. When the second force is greater than the spring force, the first slide (320) and the second slide (330) move closer together. When the second force is less than the spring force, the first slide (320) and the second slide (330) move further apart.

3. The fixture for testing cross-flow fans according to claim 2, characterized in that: The first force is generated by a linear module disposed between the first slide (320) and the cavity wall forming the cavity. The linear module is connected to the first slide (320) to generate a first force that pushes the first slide (320).

4. The fixture for testing cross-flow fans according to claim 2, characterized in that: The second force is generated by the guide wheel assembly, which includes a guide wheel (340) and a belt (350). The guide wheel (340) is located at the end of the first slide (320) away from the second slide (330). One end of the belt (350) is fixed to the side of the first slide (320) away from the second slide (330), and the other end passes around the guide wheel (340) and is connected to the side of the second slide (330) facing the first slide (320). The elastic force is generated by an elastic element (360), which is disposed between the second slide (330) and the cavity wall forming the cavity and is connected to the second slide (330).

5. The fixture for testing cross-flow fans according to claim 3, characterized in that: The linear module includes a lead screw (370) and a second rotating mechanism (380) that drives the lead screw (370) to rotate. The lead screw (370) includes a threaded section and an optical axis section, the threaded section and the optical axis section having the same length. The first slide (320) is screwed to the threaded section, and the second slide (330) slides on the optical axis section.

6. The fixture for testing cross-flow fans according to claim 2, characterized in that: Two grooves (140) and two guide rods (310) are provided.

7. The fixture for testing cross-flow fans according to claim 1, characterized in that: The connecting structure (130) includes a connecting shaft (131), which is rotatably mounted on the first moving plate (110) or the second moving plate (120). The two connecting shafts (131) are also provided with sleeves (132) at their close ends. The two sleeves (132) are provided with limiting holes (133) at their ends away from the connecting shafts (131). The limiting holes (133) are arranged along the radial direction of the sleeves (132). Limiting bolts (134) are screwed into the limiting holes (133). The sleeves (132) are used to be sleeved on the shaft (A0) of the cross-flow fan, and the limiting bolts (134) are used to abut against the shaft (A0) of the cross-flow fan. The connecting shaft (131) located on the first moving plate (110) is connected to the first rotating mechanism (200) in a transmission connection.

8. The fixture for testing cross-flow fans according to claim 7, characterized in that: An mounting plate (390) is also provided on the first moving plate (110). The mounting plate (390) is vertically disposed on the side of the first moving plate (110) away from the second moving plate (120). The first rotating mechanism (200) is mounted on the first moving plate (110).

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