Rotating shaft connecting assembly for impeller dynamic balance detection

Abstract

The utility model belongs to the technical field of impellers, and particularly relates to a rotating shaft connecting assembly for impeller dynamic balance detection, which comprises a detection box. The two ends of the detection box are fixedly connected with motors, one ends of the motors are fixedly connected with movable pulleys, the movable pulleys are rotationally connected with the detection box, one sides of the movable pulleys are provided with fixed pulleys, the fixed pulleys are rotationally connected with the detection box, the fixed pulleys make corresponding contact with the movable pulleys, and impeller bodies are placed at the tops of the movable pulleys and the fixed pulleys; the impeller body is in corresponding contact with the movable pulley and the fixed pulley, a fixed block is fixedly connected to one side of the detection box, a cross rod is hinged to the top of the fixed block, two positioning wheels are rotationally connected to the bottom of the cross rod, the positioning wheels are in corresponding contact with the impeller body, a supporting plate is arranged at the top of the motor, and the supporting plate is fixedly connected with the detection box. And the top of the supporting plate is fixedly connected with a limiting block.

Description

Technical Field

[0001] This utility model belongs to the field of impeller technology, specifically a rotating shaft connection component for impeller dynamic balancing testing. Background Technology

[0002] Impellers, as a key component of power machinery, are widely used in the automotive, aerospace, and other fields. Their machining and testing have always been considered one of the challenges in manufacturing, and comprehensive quality control during the impeller machining process is a crucial step in impeller manufacturing.

[0003] Testing the dynamic balance of the impeller is one of the important indicators of whether the automotive air conditioning fan operates stably. Many manufacturers generally perform dynamic balancing tests on the impellers to ensure that the dynamic balance of the impellers leaving the factory is within a reasonable range.

[0004] In existing technologies, impeller dynamic balancing testing mainly involves mounting the impeller on a balancing shaft and measuring its imbalance on a dynamic balancing machine. However, there is a gap between the impeller and the dynamic balancing shaft, which leads to deviations in the impeller balance test values.

[0005] Therefore, this utility model provides a rotating shaft connection assembly for impeller dynamic balancing testing. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A rotating shaft connection assembly for impeller dynamic balancing testing, comprising a testing box; motors are fixedly connected to both ends of the testing box, a movable pulley is fixedly connected to one end of the motor, the movable pulley is rotatably connected to the testing box, a fixed pulley is provided on one side of the movable pulley, the fixed pulley is rotatably connected to the testing box, the fixed pulley is in corresponding contact with the movable pulley, an impeller body is placed on top of the movable and fixed pulleys, the impeller body is in corresponding contact with the movable and fixed pulleys, a fixing block is fixedly connected to one side of the testing box, a crossbar is hinged to the top of the fixing block, two positioning wheels are rotatably connected to the bottom of the crossbar, the positioning wheels are in corresponding contact with the impeller body, a support plate is provided on top of the motor, the support plate is fixedly connected to the testing box, a limit block is fixedly connected to the top of the support plate, during operation, the impeller body is placed on the movable and fixed pulleys, and the motor is turned on. The motor drives the movable pulley to rotate, which in turn drives the fixed pulley to rotate. The movable and fixed pulleys simultaneously drive the impeller body to rotate. A crossbar is fastened above the impeller body, and two positioning wheels clamp the top of the impeller body. The positioning wheels rotate with the impeller body, and the crossbar and positioning wheels press the impeller body tightly, ensuring full contact with the movable and fixed pulleys. This method is used to detect the dynamic balance of the impeller body, reducing the possibility of the impeller body detaching from the movable and fixed pulleys, which would lead to inaccurate dynamic balance detection. Limiting blocks block both ends of the impeller body, limiting its movement and reducing deviation under the transmission of the movable and fixed pulleys. By setting fixed blocks, crossbars, and positioning wheels, the impeller body is restricted, ensuring tighter contact with the movable and fixed pulleys, making the dynamic balance detection process more stable and reducing the possibility of the impeller body detaching from the movable and fixed pulleys, which would result in inaccurate dynamic balance detection results.

[0008] Preferably, the crossbar has a slot in the middle, a locking block is slidably connected to the middle of the slot, and a fixing bolt is threadedly connected to the middle of the slot and the locking block. During operation, the slot is engaged with the locking block, and the fixing bolt connects the slot and the locking block, making them firmly fixed together. This reduces the risk of the crossbar being pushed open during dynamic balancing of the impeller body, causing the positioning wheel to loosen its restraint on the impeller body and fail to achieve a tightening effect. Consequently, the impeller body may detach from the moving pulley and the fixed pulley, affecting the dynamic balancing test results of the impeller body. By setting the slot, locking block, and fixing bolt to fix the crossbar, the positioning wheel continuously applies pressure to the impeller body, reducing the gaps between the impeller body and the moving pulley and the fixed pulley, which would lead to inaccurate dynamic balancing test results of the impeller body.

[0009] Preferably, a support rod is provided on one side of the movable pulley and the fixed pulley. The support rod is fixedly connected to the detection box. Multiple brushes are fixedly connected to one side of the support rod. The brushes contact the movable pulley and the fixed pulley. During operation, the movable pulley and the fixed pulley rotate and come into contact with the brushes. The brushes clean the surface of the movable pulley and the fixed pulley, reducing the damage caused by dust, debris or impurities to the movable pulley, the fixed pulley or the impeller body, and preventing scratches on its surface. At the same time, it affects the dynamic balance detection of the impeller body.

[0010] Preferably, the bottom of the support rod is provided with a collection groove, which is fixedly connected to the detection box. A magnetic block is fixedly connected to the bottom of the collection groove. During operation, dust, debris and other impurities cleaned by the brush fall into the collection groove, which collects them for subsequent centralized processing. The magnetic block guides the debris, causing it to fall into the collection groove.

[0011] Preferably, the bottom of the support rod is provided with a collection groove, which is fixedly connected to the detection box. A magnetic block is fixedly connected to the bottom of the collection groove. During operation, dust, debris and other impurities cleaned by the brush fall into the collection groove, which collects them for subsequent centralized processing. The magnetic block guides the debris, causing it to fall into the collection groove.

[0012] Preferably, a pad is provided on the outside of the limiting block. The pad is fixedly connected to the support plate. During operation, the impeller body end will inevitably be damaged when it collides with the limiting block. The pad buffers the impeller body and at the same time bounces the impeller body back to its original position, ensuring that the dynamic balance test of the impeller body can be carried out smoothly.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The impeller dynamic balancing test shaft connection assembly of this utility model restricts the impeller body by setting a fixed block, a crossbar, and a positioning wheel, making it more closely connected with the moving pulley and the fixed pulley. This makes the dynamic balancing test of the impeller body more stable and reduces the occurrence of the impeller body detaching from the moving pulley and the fixed pulley, which would cause inaccurate dynamic balancing test results.

[0015] 2. The impeller dynamic balance test shaft connection assembly of this utility model fixes the crossbar by setting a slot, a block, and a fixing bolt, so that the positioning wheel continuously applies pressure to the impeller body, reducing the gap between the impeller body and the moving pulley and the fixed pulley, thus preventing inaccurate dynamic balance test results of the impeller body. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the detection box in this utility model;

[0019] Figure 3 This is a schematic diagram of the crossbar structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the brush in this utility model;

[0021] Figure 5 This is a schematic diagram of the air guide plate in this utility model;

[0022] In the diagram: 1. Detection box; 11. Motor; 12. Movable pulley; 13. Fixed pulley; 101. Impeller body; 14. Fixing block; 15. Crossbar; 16. Positioning wheel; 17. Support plate; 18. Limiting block; 2. Slot; 21. Locking block; 22. Fixing bolt; 3. Support rod; 31. Brush; 4. Collection trough; 41. Magnetic block; 5. Extension plate; 51. Air guide plate; 52. External air pipe; 53. Air hole; 6. Pad block. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 3As shown in the embodiment of this utility model, a rotating shaft connection assembly for impeller dynamic balancing testing includes a testing box 1. Motors 11 are fixedly connected to both ends of the testing box 1. A movable pulley 12 is fixedly connected to one end of each motor 11. The movable pulley 12 is rotatably connected to the testing box 1. A fixed pulley 13 is provided on one side of the movable pulley 12. The fixed pulley 13 is rotatably connected to the testing box 1 and is in corresponding contact with the movable pulley 12. An impeller body 101 is placed on top of the movable pulley 12 and the fixed pulley 13. The impeller body 101 is connected to the movable pulley 12 and the fixed pulley 13. The pulleys 13 are in corresponding contact. A fixing block 14 is fixedly connected to one side of the detection box 1. A crossbar 15 is hinged to the top of the fixing block 14. Two positioning wheels 16 are rotatably connected to the bottom of the crossbar 15. The positioning wheels 16 are in corresponding contact with the impeller body 101. A support plate 17 is provided on the top of the motor 11. The support plate 17 is fixedly connected to the detection box 1. A limit block 18 is fixedly connected to the top of the support plate 17. During operation, the impeller body 101 is placed on the movable pulley 12 and the fixed pulley 13. The motor 11 is turned on, and the motor 11 drives the movable pulley 12 to rotate, thereby... The fixed pulley 13 rotates, and the movable pulley 12 and fixed pulley 13 simultaneously drive the impeller body 101 to rotate. The crossbar 15 is fastened above the impeller body 101, and two positioning wheels 16 clamp the upper part of the impeller body 101. The positioning wheels 16 rotate with the impeller body 101, and the crossbar 15 and positioning wheels 16 press the impeller body 101 tightly, making it fully contact with the movable pulley 12 and fixed pulley 13. This is to check the dynamic balance of the impeller body 101 and reduce the phenomenon of the impeller body 101 disengaging from the movable pulley 12 and fixed pulley 13, thus ensuring the dynamic balance of the impeller body 101. Inaccurate detection occurs because the limiting block 18 blocks both ends of the impeller body 101 to limit its movement and reduce deviation of the impeller body 101 under the transmission of the moving pulley 12 and the fixed pulley 13. By setting the fixing block 14, the crossbar 15, and the positioning wheel 16, the impeller body 101 is restricted, making it more closely connected with the moving pulley 12 and the fixed pulley 13. This makes the dynamic balance test of the impeller body 101 more stable and reduces the occurrence of the impeller body 101 detaching from the moving pulley 12 and the fixed pulley 13, resulting in inaccurate dynamic balance test results for the impeller body 101.

[0025] like Figures 1 to 3As shown, a slot 2 is provided in the middle of the crossbar 15, and a locking block 21 is slidably connected in the middle of the slot 2. A fixing bolt 22 is threadedly connected in the middle of the slot 2 and the locking block 21. During operation, the slot 2 is locked into the locking block 21, and the fixing bolt 22 connects the slot 2 and the locking block 21, making them firmly fixed together. This reduces the risk of the crossbar 15 being pushed open during the dynamic balancing test of the impeller body 101, which would cause the positioning wheel 16 to loosen its restraint on the impeller body 101 and fail to achieve a fastening effect. Consequently, the impeller body 101 would detach from the moving pulley 12 and the fixed pulley 13, affecting the dynamic balancing test results of the impeller body 101. By setting the slot 2, the locking block 21, and the fixing bolt 22 to fix the crossbar 15, the positioning wheel 16 continuously applies pressure to the impeller body 101, reducing the gaps between the impeller body 101 and the moving pulley 12 and the fixed pulley 13, thus preventing inaccurate dynamic balancing test results of the impeller body 101.

[0026] like Figures 1 to 4 As shown, a support rod 3 is provided on one side of the movable pulley 12 and the fixed pulley 13. The support rod 3 is fixedly connected to the detection box 1. Multiple brushes 31 are fixedly connected to one side of the support rod 3. The brushes 31 are in contact with the movable pulley 12 and the fixed pulley 13. When working, the movable pulley 12 and the fixed pulley 13 rotate and come into contact with the brushes 31. The brushes 31 clean the surface of the movable pulley 12 and the fixed pulley 13, reducing dust, debris or impurities from damaging the movable pulley 12, the fixed pulley 13 or the impeller body 101, causing scratches on their surface, and affecting the dynamic balance detection of the impeller body 101.

[0027] like Figures 1 to 4 As shown, the bottom of the support rod 3 is provided with a collection groove 4, which is fixedly connected to the detection box 1. A magnetic block 41 is fixedly connected to the bottom of the collection groove 4. During operation, the dust, debris and other impurities cleaned by the brush 31 fall into the collection groove 4, which collects them for subsequent centralized processing. The magnetic block 41 guides the debris to fall into the collection groove 4.

[0028] like Figures 1 to 5 As shown, an extension plate 5 is fixedly connected to the top of the limiting block 18, and an air guide plate 51 is fixedly connected to one side of the extension plate 5. An external air pipe 52 is connected to the top of the air guide plate 51, and multiple air holes 53 are connected to the bottom of the air guide plate 51. During operation, the external air pipe 52 is connected to an air pump, and the gas passes through the air guide plate 51 and is dispersed from the air holes 53. It acts on the contact points of the moving pulley 12, the fixed pulley 13, the positioning wheel 16, and the impeller body 101 to ventilate and dissipate heat, accelerate air circulation, and reduce the damage to various components caused by frictional heat generation.

[0029] like Figures 1 to 5As shown, a pad 6 is provided on the outside of the limiting block 18. The pad 6 is fixedly connected to the support plate 17. During operation, the end of the impeller body 101 will inevitably be damaged when it collides with the limiting block 18. The pad 6 buffers the impeller body 101 and at the same time bounces the impeller body 101 back to its original position, ensuring that the dynamic balance test of the impeller body 101 can be carried out smoothly.

[0030] Working principle: The impeller body 101 is placed on the movable pulley 12 and the fixed pulley 13. The motor 11 is turned on, and the motor 11 drives the movable pulley 12 to rotate, which in turn drives the fixed pulley 13 to rotate. The movable pulley 12 and the fixed pulley 13 simultaneously drive the impeller body 101 to rotate. The crossbar 15 is fastened above the impeller body 101, and two positioning wheels 16 clamp the top of the impeller body 101. The positioning wheels 16 rotate with the impeller body 101. The crossbar 15 and the positioning wheels 16 press the impeller body 101 tightly, making it fully contact the movable pulley 12 and the fixed pulley 13. This is to detect the dynamic balance of the impeller body 101 and reduce the phenomenon of the impeller body 101 separating from the movable pulley 12 and the fixed pulley 13, which would lead to inaccurate dynamic balance detection of the impeller body 101. The limit block 18 blocks both ends of the impeller body 101 to limit it and reduce the impeller body 101 from moving and sliding. The impeller body 101 deviates under the transmission of pulley 12 and fixed pulley 13. By setting fixed block 14, crossbar 15 and positioning wheel 16, the impeller body 101 is restricted, so that it is in closer contact with the moving pulley 12 and fixed pulley 13. This makes it more stable during the dynamic balance test of the impeller body 101 and reduces the occurrence of the impeller body 101 detaching from the moving pulley 12 and fixed pulley 13, which would cause the dynamic balance test results of the impeller body 101 to be inaccurate. The slot 2 is inserted into the slot block 21, and the slot 2 and the slot block 21 are connected by the fixing bolt 22 to fix them firmly together. This reduces the possibility that the crossbar 15 will be pushed open during the dynamic balance test of the impeller body 101, which would cause the positioning wheel 16 to loosen its restriction on the impeller body 101 and fail to achieve the fastening effect. This would lead to the impeller body 101 detaching from the moving pulley 12 and fixed pulley 13 and affecting the dynamic balance test results of the impeller body 101.By setting the slot 2, the locking block 21, and the fixing bolt 22, the crossbar 15 is fixed, so that the positioning wheel 16 continuously applies pressure to the impeller body 101, reducing the gaps between the impeller body 101 and the moving pulley 12 and the fixed pulley 13. This prevents inaccurate dynamic balance test results of the impeller body 101. When the moving pulley 12 and the fixed pulley 13 rotate, they will come into contact with the brush 31. The brush 31 cleans the surface of the moving pulley 12 and the fixed pulley 13, reducing the damage caused by dust, debris, or impurities to the moving pulley 12, the fixed pulley 13, or the impeller body 101, causing scratches on their surface and affecting the dynamic balance test of the impeller body 101. The dust, debris, and other impurities cleaned by the brush 31 The debris falls into the collection tank 4, where it is collected for subsequent centralized processing. Magnetic blocks 41 guide the debris, causing it to drift into the collection tank 4. An external air pipe 52 connects to an air pump, and gas passes through the air guide plate 51 and is released from the air holes 53. This gas acts on the contact points of the moving pulley 12, fixed pulley 13, positioning wheel 16, and impeller body 101, providing ventilation and heat dissipation, accelerating airflow, and reducing damage to components caused by frictional heat. Damage to the impeller body 101 due to collision with the limiting block 18 is inevitable; the pad block 6 cushions the impeller body 101 and simultaneously bounces it back to its original position, ensuring the smooth operation of the impeller body 101 dynamic balance test.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotating shaft connection assembly for impeller dynamic balancing testing, comprising a testing box (1); characterized in that: The detection box (1) is fixedly connected to two ends of a motor (11). One end of the motor (11) is fixedly connected to a movable pulley (12). The movable pulley (12) is rotatably connected to the detection box (1). A fixed pulley (13) is provided on one side of the movable pulley (12). The fixed pulley (13) is rotatably connected to the detection box (1). The fixed pulley (13) is in corresponding contact with the movable pulley (12). An impeller body (101) is placed on top of the movable pulley (12) and the fixed pulley (13). The impeller body (101) is connected to the motor (12) and the fixed pulley (13). The movable pulley (12) and the fixed pulley (13) are in corresponding contact. A fixed block (14) is fixedly connected to one side of the detection box (1). A crossbar (15) is hinged to the top of the fixed block (14). Two positioning wheels (16) are rotatably connected to the bottom of the crossbar (15). The positioning wheels (16) are in corresponding contact with the impeller body (101). A support plate (17) is provided on the top of the motor (11). The support plate (17) is fixedly connected to the detection box (1). A limit block (18) is fixedly connected to the top of the support plate (17).

2. The impeller dynamic balancing test shaft connection assembly according to claim 1, characterized in that: The crossbar (15) has a slot (2) in the middle, and a block (21) is slidably connected in the middle of the slot (2). A fixing bolt (22) is threadedly connected in the middle of the slot (2) and the block (21).

3. The impeller dynamic balancing test shaft connection assembly according to claim 2, characterized in that: The movable pulley (12) and the fixed pulley (13) are provided with a support rod (3) on one side. The support rod (3) is fixedly connected to the detection box (1). Multiple brushes (31) are fixedly connected to one side of the support rod (3). The brushes (31) are in contact with the movable pulley (12) and the fixed pulley (13).

4. The impeller dynamic balancing test shaft connection assembly according to claim 3, characterized in that: The bottom of the support rod (3) is provided with a collection groove (4), which is fixedly connected to the detection box (1), and a magnetic block (41) is fixedly connected to the bottom of the collection groove (4).

5. The impeller dynamic balancing test shaft connection assembly according to claim 4, characterized in that: The top of the limiting block (18) is fixedly connected to an extension plate (5), and a guide plate (51) is fixedly connected to one side of the extension plate (5). The top of the guide plate (51) is connected to an external air pipe (52), and the bottom of the guide plate (51) is connected to multiple air holes (53).

6. The impeller dynamic balancing test shaft connection assembly according to claim 5, characterized in that: The limiting block (18) has a pad (6) on its outer side, and the pad (6) is fixedly connected to the support plate (17).

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