Upside-down vertical balancing machine

Abstract

The invention relates to an upside-down vertical balancing machine, and relates to the technical field of fan balance testing, the upside-down vertical balancing machine comprises a machine body, a feeding mechanism and a testing mechanism, the feeding mechanism is used for conveying a fan upwards to the testing mechanism for clamping testing, and the testing mechanism comprises a rotating part which is rotatably arranged on the machine body and located above the feeding mechanism; the clamping assembly is arranged on the rotating part and used for clamping and positioning a rotating shaft of the fan; the driving assembly is used for driving the rotating part to rotate; and the test assembly is used for monitoring the operation data of the fan. The fan is placed on the feeding mechanism to achieve feeding, the clamping assembly clamps and positions the rotating shaft of the fan, the driving assembly drives the fan to rotate, meanwhile, the testing assembly is used for monitoring data in the fan running process, the running state of the fan during testing is closer to the actual working state, and the testing effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of fan balance testing, and in particular, to an inverted vertical balancing machine. Background Art

[0002] Fan imbalance can cause noise and vibration, reduce work efficiency and accelerate equipment wear. In addition, an unbalanced fan may also cause safety problems. For example, the shedding of fan blades may cause injuries or equipment damage. Therefore, through dynamic balance testing, the imbalance state of the fan can be detected and corrected to ensure its stability during high-speed rotation, reduce vibration and noise, thereby improving the overall performance and durability.

[0003] The clamping end of the current fan balance testing equipment is set upward, and the fan is placed on the clamp from top to bottom. After the clamp clamps the rotating shaft of the fan, it rotates for detection. However, the working state of some fans is inverted, such as ceiling fans. The upward detection method cannot simulate the real working state of such fans, resulting in inaccurate test results of whether the fan is balanced and reducing the test effect. Summary of the Invention

[0004] In order to improve the test effect on fans, this application provides an inverted vertical balancing machine.

[0005] An inverted vertical balancing machine provided by this application adopts the following technical solutions: An inverted vertical balancing machine includes a machine body, a feeding mechanism and a testing mechanism arranged on the machine body. The feeding mechanism is located below the testing mechanism and is used to convey the fan upward to the testing mechanism for clamping and testing. The testing mechanism includes: A rotating member, rotatably arranged on the machine body and located above the feeding mechanism; A clamping assembly, arranged on the rotating member and used for clamping and positioning the rotating shaft of the fan and rotating simultaneously with the rotating member; A driving assembly, used to drive the rotating member to rotate; A testing assembly, used to monitor the operating data of the fan.

[0006] By adopting the above technical solutions, the fan is placed on the feeding mechanism for positioning. The feeding mechanism starts to drive the fan to move vertically upward, so that the rotating shaft of the fan extends into the clamping assembly. The clamping assembly starts to clamp and position the rotating shaft of the fan. The feeding mechanism moves downward away from the fan. The driving assembly drives the rotating member and the clamping assembly to rotate. At the same time, the testing assembly is used to monitor the data during the operation of the fan, so that the fan is in an inverted state during operation, that is, the actual working state of the ceiling fan, making the operating state closer to the actual working state when testing the fan and improving the test effect.

[0007] After the test is completed, the driving component stops running, the feeding mechanism moves upward to support the fan, the clamping component releases the clamping, the feeding mechanism moves downward to drive the fan to move downward at the same time, and then the fan is replaced and the test is repeated, thereby improving the test effect of the fan.

[0008] Optionally, the clamping component includes: An expansion sleeve, vertically and slidably installed on the rotating member and with its top extending above the rotating member and connected to the rotating member through an elastic component. A pressing surface that fits the expansion sleeve and is conical is provided at the bottom of the rotating member. The elastic component pushes the expansion sleeve upward and contracts under the action of the pressing surface to clamp and position the rotating shaft of the fan. A pushing member, arranged on the machine body and located above the expansion sleeve. When the pushing member is activated, it pushes the expansion sleeve downward, and the expansion sleeve rebounds under its own elastic force to unlock the rotating shaft of the fan.

[0009] By adopting the above technical solution, the piston rod of the pushing member extends and abuts against the top of the expansion sleeve. When the piston rod of the pushing member continues to extend, it pushes the expansion sleeve downward. The expansion sleeve expands under its own elastic force. Therefore, the expansion sleeve can unlock the rotating shaft of the fan, or it is convenient to extend the rotating shaft of the fan into the expansion sleeve. When the piston rod of the pushing member contracts, the expansion sleeve moves upward under the elastic force of the elastic component. The expansion sleeve contracts under the action of the pressing surface and is used to clamp and position the rotating shaft of the fan until the piston rod of the pushing member moves upward and disengages from the expansion sleeve, thereby realizing the clamping, positioning or unlocking of the rotating shaft of the fan.

[0010] At the same time, when the rotating member drives the expansion sleeve to rotate, it does not contact the pushing member, and the expansion sleeve, the elastic member and the rotating member rotate simultaneously. When the pushing member drives the expansion sleeve to move, the rotating member and the expansion sleeve have both stopped rotating. Therefore, the risk of wear generated during the rotation of multiple structures is greatly reduced, the stability during the test is improved, and the test effect of the fan is further improved.

[0011] Optionally, a receiving cavity is provided at the top of the rotating member, and the expansion sleeve passes through the receiving cavity and extends above the rotating member. The elastic component includes: A fixed disk, arranged on the expansion sleeve and extending into the receiving cavity; An elastic member, sleeved on the expansion sleeve and limited through the receiving cavity. The elastic member abuts against the receiving cavity and the fixed disk and is used to push the fixed disk to maintain an upward movement trend.

[0012] By adopting the above technical solution, the elastic member pushes the fixed disk and the expansion sleeve upward. At the same time, the receiving cavity and the fixed disk can accommodate, protect and limit the elastic member, making the elastic member more stable during operation and improving the test effect of the fan.

[0013] Optionally, a support assembly for supporting the top end of the rotating member is provided on the body. When the pushing member pushes the expansion sleeve downward, the support assembly supports and positions the rotating member.

[0014] By adopting the above technical solution, when the expansion sleeve moves downward, it generates a downward pressure on the rotating member through the elastic component, so that the force at the connection between the rotating member and the body is relatively large, reducing the service life and test effect of the equipment.

[0015] When the pushing member pushes the expansion sleeve downward, the top end of the rotating member is supported by the support assembly, so that the force on the connection between the rotating member and the body during the process of the pushing member pushing the expansion sleeve downward can be greatly reduced, the risk of damage to the connection between the rotating member and the body is reduced, and the service life and test effect of the equipment are improved.

[0016] Optionally, the support assembly includes: A support disk, arranged on the top end of the rotating member; A pulling block, arranged on the body and extending below the support disk. When the expansion sleeve clamps the rotating shaft of the fan, a certain gap is maintained between the pulling block and the support disk; when the pushing member pushes the expansion sleeve downward, it first drives the rotating member and the support disk to move downward simultaneously and makes the support disk abut against the pulling block for positioning, and then the pushing member continues to move to drive the expansion sleeve to move downward and unlock the rotating shaft of the fan.

[0017] By adopting the above technical solution, the rotating member is rotatably installed on the body through a bearing. The bearing includes an outer ring body, a ball body and an inner ring body. Arc-shaped grooves for the ball body to rotate are formed on both side walls of the opposite sides of the outer ring body and the inner ring body. The plurality of ball bodies are connected by an elastic structure. There must be a certain gap between the outer ring body, the ball body and the inner ring body, so that the rotating member can move downward a small distance when subjected to a downward thrust. During this process, the elastic structure will be squeezed. Therefore, when the force on the rotating member is released, the groove and the elastic structure can make the rotating member move up to its original position.

[0018] The piston rod of the pushing member moves downward to push the expansion sleeve, the elastic component and the rotating member downward. The downward movement of the rotating member drives the support disk to move downward and then abut against the pulling block for positioning, thereby positioning the rotating member. When the piston rod of the pushing member continues to extend, it squeezes the elastic component and makes the expansion sleeve move downward. Therefore, the force on the connection between the rotating member and the body during the process of the pushing member pushing the expansion sleeve downward can be reduced, the risk of damage to the connection between the rotating member and the body is reduced, and the service life and test effect of the equipment are improved.

[0019] When the piston rod of the driving member contracts, the elastic component pushes the expansion sleeve upward and the pressure on the rotating member gradually decreases, causing the rotating member and the support plate to move upward to their original positions, keeping a certain gap between the support plate and the pulling block, so that the rotating member does not contact the pulling block when rotating to drive the support plate to rotate. Therefore, the risk of wear of the support plate is reduced, and the service life and test effect of the equipment can be further improved.

[0020] Optionally, a positioning ring is rotatably mounted on the pulling block and supports on the lower surface of the support plate for positioning.

[0021] By adopting the above technical solution, the positioning ring supports on the lower surface of the support plate. Therefore, when the expansion sleeve moves downward, it will not drive the rotating member to move downward. When the support plate rotates, it drives the support plate to rotate, so that the rotating member can be supported and the risk of wear of the support plate is reduced. It also reduces the risk of damage to the bearings and drive components at the connection between the rotating member and the machine body when the rotating member moves downward, further improving the service life and test effect of the equipment.

[0022] Optionally, the support assembly includes: A fixed plate, arranged on the machine body, extending above the expansion sleeve and provided with a plurality of guide posts at intervals; A bearing plate, vertically slidably arranged on the plurality of guide posts; A bearing ring, arranged on the lower surface of the bearing plate. The driving member is arranged on the bearing plate and the piston rod extends vertically into the bearing ring. The top end of the expansion sleeve extends into the bearing ring and is located below the driving member and is provided with a bearing disc; When the piston rod of the driving member contracts, the bearing ring is positioned on the machine body under the action of gravity, extends below the bearing disc and keeps a certain gap from the bearing disc; after the piston rod of the driving member extends, it presses against the top end of the expansion sleeve and is used to drive the bearing plate and the bearing ring to move upward, so that the bearing plate abuts against the fixed plate and the bearing ring abuts against the bearing disc for positioning. When the piston rod of the driving member continues to extend, it pushes the expansion sleeve downward.

[0023] By adopting the above technical solution, when the piston rod of the driving member extends and abuts against the expansion sleeve, the elastic component generates a reaction force so that the expansion sleeve does not move, thereby driving the bearing plate to move upward close to the fixed plate and the bearing ring to move upward close to the bearing disc until the bearing plate abuts against the fixed plate and the bearing ring abuts against the bearing disc for positioning.

[0024] The piston rod of the pusher continues to extend, generating a downward thrust on the expansion sleeve. At the same time, the bearing ring generates an upward pulling force on the bearing plate. The design of the thrust and pulling force in opposite directions can greatly reduce the downward pressure on the rotating part. Moreover, since the gravity of the support assembly has already exerted pressure on the elastic assembly, the force required for the pusher to squeeze the elastic assembly and deform is greatly reduced, that is, the reaction force on the pusher when the expansion sleeve moves downward is reduced, and the risk of damage to the pusher is reduced. Therefore, the risks of damage to both the connection between the rotating part and the machine body and the pusher are reduced, further improving the service life and test effect of the equipment.

[0025] When the piston rod of the pusher retracts, the bearing plate and the bearing ring move downward, causing the bearing ring to be placed on the machine body, and the bearing ring moves downward and disengages from the bearing plate, keeping a certain gap between the bearing ring and the bearing plate, reducing the risk of wear between the bearing ring and the bearing plate.

[0026] Optionally, the test assembly includes: A test plate, vertically slidably arranged on the machine body, horizontally extending above the fan, and horizontally and spacedly provided with a plurality of fixing holes; A locking member one, used to lock the vertical position of the test plate; A mounting seat, horizontally slidably arranged on the test plate; A locking member two, arranged on the mounting seat and connected to the fixing hole for positioning; A photoelectric switch, arranged on the mounting seat and used to monitor the test data of the fan.

[0027] By adopting the above technical solution, the photoelectric switch is used to detect the operation data of the fan. At the same time, unlocking the locking member one and / or the locking member two can adjust the position of the photoelectric switch in both the vertical and horizontal directions. After the adjustment is completed, it is locked, so as to be able to adapt to the detection of fan data of different sizes, thereby further improving the test effect.

[0028] Optionally, the feeding mechanism includes: A lifting member, arranged on the machine body; A feeding seat, arranged on the lifting member and vertically moving under the action of the lifting member; A jig plate, detachably arranged on the feeding seat through a connecting component and used to place the fan; A positioning member, arranged on the jig plate and used to position the position of the fan.

[0029] By adopting the above technical solution, the fan is placed on the jig plate, the positioning member positions the position of the fan, and then the lifting member is started to drive the feeding seat, the jig plate and the fan to move upward, so that the rotating shaft of the fan moves into the clamping component, and the clamping component clamps and positions the rotating shaft of the fan. Then the lifting member drives the feeding seat and the jig plate to move downward away from the fan, thus realizing the feeding of the fan.

[0030] Meanwhile, by means of the replaceable fixture plate and positioning parts, it is possible to adapt to the positioning of fans of different sizes, improving the convenience and stability during the fan testing process and enhancing the testing effect.

[0031] Optionally, a plurality of the connection components are arranged at intervals, and the connection components include: Fixed columns, which are arranged on the upper surface of the loading base and are inserted and installed on the lower surface of the fixture plate for positioning; Tapered columns, which are coaxially arranged at the top of the fixed columns and are tapered and used for guiding during the insertion of the fixed columns and the fixture plate.

[0032] By adopting the above technical solution, the fixed columns are inserted and cooperated with the fixture plate for positioning, and the tapered columns are positioned during the insertion process, thus facilitating the replacement of the fixture plate.

[0033] In summary, the present application includes at least one of the following beneficial technical effects: 1. By placing the fan on the loading mechanism for loading, the clamping component clamps and positions the rotating shaft of the fan, the driving component drives the fan to rotate, and at the same time, the testing component is used to monitor the data during the operation of the fan, making the fan in an inverted state during operation, that is, the actual working state of a ceiling fan, so that the operating state during fan testing is closer to the actual working state, improving the testing effect.

[0034] 2. When the rotating member drives the expansion sleeve to rotate, it does not contact the pushing member, and the expansion sleeve, the elastic member and the rotating member rotate simultaneously. When the pushing member drives the expansion sleeve to move, the rotating member and the expansion sleeve have both stopped rotating. Therefore, the risk of wear generated during the rotation of multiple structures is greatly reduced, the stability during the testing process is improved, and thus the testing effect of the fan is further enhanced.

[0035] 3. When the pushing member pushes the expansion sleeve downward, the supporting component supports the top end of the rotating member, thereby greatly reducing the force on the connection between the rotating member and the machine body during the process of the pushing member pushing the expansion sleeve downward, reducing the risk of damage to the connection between the rotating member and the machine body, and improving the service life of the equipment and the testing effect. Description of the Drawings

[0036] Figure 1 is a three-dimensional structural schematic diagram of Embodiment 1 of the balancing machine; Figure 2 is a partial exploded view of Embodiment 1 of the balancing machine, mainly showing the loading mechanism and the connection components; Figure 3 is a structural schematic diagram of the testing mechanism in Embodiment 1 of the balancing machine; Figure 4 is Figure 3 the cross-sectional schematic diagram of A-A in Figure 5 is Figure 4 The enlarged schematic view of part B in it; Figure 6 is the structural schematic diagram of the driving component in Embodiment 1 of the balancing machine; Figure 7 is the structural schematic diagram of the testing component in Embodiment 1 of the balancing machine; Figure 8 is the structural schematic diagram of the testing component from another angle in Embodiment 1 of the balancing machine; Figure 9 is the structural schematic diagram of Embodiment 2 of the balancing machine; Figure 10 is the partial structural schematic diagram in Embodiment 3 of the balancing machine, mainly showing the supporting component.

[0037] Reference numerals: 1, machine body; 11, mounting plate; 13, adjusting seat; 14, adjusting block; 15, moving groove; 16, adjusting hole; 17, elastic component; 171, fixed disk; 172, elastic member; 2, feeding mechanism; 21, lifting member; 22, feeding seat; 23, fixture plate; 24, positioning member; 3, connecting component; 31, fixed column; 32, conical column; 4, testing mechanism; 41, rotating member; 42, mounting hole; 43, extrusion surface; 44, mounting cylinder; 45, accommodating cavity; 46, rotating hole; 5, clamping component; 51, expansion sleeve; 52, pushing member; 53, expansion part; 54, sliding part; 55, accommodating groove; 56, limiting hole; 57, limiting screw; 58, expansion surface; 6, driving component; 61, driving member; 62, first synchronous pulley; 63, second synchronous pulley; 64, encoder; 7, testing component; 71, testing plate; 72, first locking member; 721, locking block; 722, locking screw; 723, dial; 73, mounting seat; 74, second locking member; 75, photoelectric switch; 8, supporting component; 81, supporting disk; 82, pulling block; 83, circular tube part; 84, bearing part; 85, positioning ring; 91, fixing plate; 92, bearing plate; 93, bearing ring; 94, bearing disk; 95, guiding column; 96, supporting column. Detailed implementation manners

[0038] The following further elaborates on this application in detail.

[0039] The embodiment of this application discloses an inverted hanging vertical balancing machine.

[0040] In Embodiment 1, referring to Figure 1 , the inverted hanging vertical balancing machine includes a machine body 1, a feeding mechanism 2 arranged on the machine body 1, and a testing mechanism 4. The feeding mechanism 2 is located below the testing mechanism 4 and is used to convey the fan upward to the testing mechanism 4 for testing. The testing mechanism 4 is used to clamp and position the rotating shaft of the fan, and then drive the fan to rotate for testing.

[0041] Reference Figure 1 and Figure 2 Figure 1 and Figure 2 , the loading mechanism 2 includes a lifting member 21, a loading seat 22, a fixture plate 23 and a positioning member 24. The lifting member 21 is an electric push rod, an electric cylinder, etc. The lifting member 21 is fixedly installed on the side wall of the machine body 1 and the piston rod is arranged vertically upward; the loading seat 22 is fixedly installed on the top end of the piston rod of the lifting member 21. The lifting member 21 is used to drive the loading seat 22 to move vertically. The center line of the upper surface of the loading seat 22 coincides with the axis of the piston rod of the lifting member 21; the fixture plate 23 is detachably arranged on the loading seat 22 through a connecting component 3 and is used to place the fan. The positioning member 24 is fixedly installed on the upper surface of the fixture plate 23, and the positioning member 24 is used to position the position of the fan. The size of the positioning member 24 is designed according to different fans.

[0042] Place the fan on the fixture plate 23, and the positioning member 24 positions the position of the fan so that the axis of the rotating shaft of the fan coincides with the axis of the piston rod of the pushing member 52; the lifting member 21 starts to drive the loading seat 22, the fixture plate 23 and the fan to move vertically.

[0043] A plurality of connecting components 3 are arranged in a circumferential array around the axis of the lifting member 21. The connecting component 3 includes a fixing column 31 and a tapered column 32. The fixing column 31 is fixedly installed on the upper surface of the loading seat 22 and is in a vertical state. The tapered column 32 is in the shape of a frustum of a cone and is coaxially integrally arranged on the top end of the fixing column 31. The diameter of the bottom end of the tapered column 32 is the same as the diameter of the fixing column 31 and is larger than the diameter of the top end of the tapered column 32. A plurality of fixing grooves are spaced apart on the lower surface of the fixture plate 23. The fixing column 31 is inserted and installed in the fixing groove, and the tapered column 32 is guided when inserted and installed into the fixing groove; the positioning and replacement of the fixture plate 23 are realized through the insertion and cooperation of the plurality of fixing columns 31 and the fixing grooves.

[0044] Reference[[ID=!4]] Figures 3 - 5 Figures 3 - 5 , the testing mechanism 4 includes a rotating member 41 and a clamping assembly 5. The rotating member 41 is vertically rotatably installed on the machine body 1 and is located above the loading mechanism 2. At the same time, the top end of the rotating member 41 extends above the machine body 1. The rotating member 41 coincides with the axis of the rotating shaft of the fan. An installation hole 42 penetrating through both ends of the rotating member 41 is coaxially opened in the rotating member 41, and a tapered pressing surface 43 is coaxially opened at the bottom end of the installation hole 42. The diameter of the top end of the pressing surface 43 is the same as the diameter of the installation hole 42 and is smaller than the diameter of the bottom end of the pressing surface 43. An installation cylinder 44 is coaxially fixedly installed at the top of the rotating member 41. A receiving cavity 45 is coaxially opened at the top end of the installation cylinder 44. A rotating hole 46 communicating with the installation hole 42 is coaxially opened at the bottom of the receiving cavity 45.

[0045] The clamping assembly 5 is arranged on the rotating member 41 and is used for clamping and positioning the rotating shaft of the fan and rotating simultaneously with the rotating member 41. The clamping assembly 5 includes an expansion sleeve 51 and a pushing member 52. The expansion sleeve 51 includes an expansion portion 53 and a sliding portion 54 arranged coaxially. The expansion portion 53 is located in the mounting hole 42. An expansion surface 58 parallel to the extrusion surface 43 is formed on the outer side wall of the expansion portion 53. A receiving groove 55 for the rotating shaft of the fan to extend into is coaxially formed at the bottom of the expansion portion 53. The expansion portion 53 is elastic, and a plurality of expansion grooves communicating with the receiving groove 55 and facilitating deformation are spaced apart on the outer side wall of the expansion portion 53. The principle of the expansion portion 53 is the same as that of the spring collet used for the tool in a numerical control machine tool; a plurality of annular limiting rings are vertically spaced on the receiving groove 55, and a plurality of limiting grooves for snap-fit connection with the limiting rings are coaxially formed on the rotating shaft of the fan, thereby reducing the risk of slippage during the fan test and improving the test effect.

[0046] A vertical limiting hole 56 is formed on the side wall of the sliding portion 54. A limiting screw 57 extending into the limiting hole 56 is threadedly connected to the outer side wall of the mounting cylinder 44, so that the sliding portion 54 is vertically slidably mounted on the rotating hole 46, and the rotating member 41, the mounting cylinder 44, and the expansion sleeve 51 rotate simultaneously. At the same time, after the limiting screw 57 is screwed out of the limiting hole 56, the sliding portion 54 can be removed; the bottom end of the sliding portion 54 extends into the mounting hole 42 and is fixedly connected to the expansion portion 53, and the top end of the sliding portion 54 passes through the receiving cavity 45 and extends above the mounting cylinder 44.

[0047] The sliding portion 54 is connected to the mounting cylinder 44 through an elastic component 17. Pushing the sliding portion 54 downward drives the expansion sleeve 51 to move downward, so that the expansion surface 58 is separated from the extrusion surface 43, thereby facilitating the placement of the rotating shaft of the fan into the container groove, or, if the rotating shaft of the fan has been placed, unlocking the rotating shaft of the fan; removing the downward thrust on the sliding portion 54, the sliding portion 54 moves upward under the action of the elastic component 17, and the expansion portion 53 moves upward so that the expansion surface 58 contacts and is extruded by the extrusion surface 43, and under the action of the extrusion surface 43, the expansion portion 53 clamps and positions the rotating shaft of the fan.

[0048] The elastic component 17 includes a fixed disk 171 and an elastic member 172. The fixed disk 171 is detachably mounted on the top end of the sliding portion 54, and the fixed disk 171 extends into the receiving groove 55. The fixed disk 171 is coaxially arranged with the receiving groove 55 and has the same diameter; the elastic member 172 is a disc spring. The elastic member 172 is slidably sleeved on the sliding portion 54, and the outer side wall of the elastic member 172 contacts the receiving groove 55. A plurality of elastic members 172 are vertically stacked. The receiving groove 55 is used for limiting a plurality of elastic members 172, and the fixed disk 171 cooperates with the receiving groove 55 to protect a plurality of elastic members 172.

[0049] The pusher 52 is an electric push rod or an electric cylinder, etc. A mounting plate 11 extending above the sliding part 54 is fixedly installed at the top of the machine body 1. The pusher 52 is fixedly installed on the upper surface of the mounting plate 11, and the piston rod of the pusher 52 vertically penetrates through the mounting plate 11 and extends below the mounting plate 11. After the piston rod of the pusher 52 extends downward, it can press against the top end of the sliding part 54. When the piston rod of the pusher 52 continues to extend, it pushes the sliding part 54 downward. The downward movement of the sliding part 54 drives the fixed disk 171 to move downward and squeeze a plurality of elastic members 172. The downward movement of the sliding part 54 drives the expansion sleeve 51 to move downward to unlock the rotating shaft of the fan; when the piston rod of the pusher 52 contracts, the sliding part 54 and the expansion part 53 move upward under the elastic force of the plurality of elastic members 172 until the piston rod of the pusher 52 disengages from the sliding part 54, then the clamping and positioning of the rotating shaft of the fan are realized.

[0050] Refer to Figure 1 , Figure 6 , the testing mechanism 4 further includes a driving component 6 and a testing component 7. The driving component 6 is used to rotate the rotating part 41. The driving component 6 includes a driving member 61, a first synchronous pulley 62, a second synchronous pulley 63 and an encoder 64. The driving member 61 is a motor. The driving member 61 is fixedly installed on the upper surface of the machine body 1 and the output shaft is arranged vertically downward; the first synchronous pulley 62 and the second synchronous pulley 63 are respectively fixedly installed on the rotating part 41 and the output shaft of the rotating part 41 and are connected by a synchronous belt, so as to realize that when the driving member 61 is started, the rotating part 41, the expansion sleeve 51 and the fan rotate simultaneously. The encoder 64 is fixedly installed on the upper surface of the machine body 1, and the encoder 64 is connected to the rotating part 41 through a synchronous belt pulley. The encoder 64 is electrically connected to the driving member 61 and is used to monitor the accuracy of the driving member 61.

[0051] Refer to Figure 1 , Figure 7 , Figure 8 , the testing component 7 includes a testing plate 71, a first locking member 72, a mounting seat 73, a second locking member 74 and a photoelectric switch 75. An adjusting seat 13 is fixedly installed on the machine body 1 on one side of the rotating part 41. An adjusting block 14 is vertically slidably installed on the side wall of the adjusting seat 13; one end of the testing plate 71 is fixedly installed on the adjusting block 14 and the other end horizontally extends above the fan, so as to realize that the testing plate 71 is vertically slidably installed on the adjusting seat 13.

[0052] When the cam 72 is in the closed position, the handle 722 is in the closed position and the push-button 724 is in the closed position, so that the cam 722 can be turned to the open position, thereby effectively preventing the cam from being lost.

[0053] There are multiple fixing holes arranged horizontally at intervals on the test board 71, and the fixing holes are threaded holes. The mounting seat 73 is horizontally slidably installed on the test board 71. The second locking piece 74 is arranged on the mounting seat 73 and is connected to the fixing hole for positioning. There are multiple second locking pieces 74 arranged at intervals, and the second locking piece 74 is a screw. The screw passes through the mounting seat 73 and is threadedly connected to the fixing hole; the photoelectric switch 75 is fixedly installed on the side wall of the mounting seat 73, and the photoelectric switch 75 is used to test the fan operation data; the locking piece 1 72 and the locking piece 2 74 can realize the adjustment of the position of the photoelectric switch 75 in the vertical and horizontal directions, thereby realizing the testing of fans of different sizes.

[0054] Reference Figure 4 、 Figure 5 A support assembly 8 is provided on the body 1 to support the top of the rotating member 41. When the pushing member 52 pushes the expansion sleeve 51 downward, the support assembly 8 supports the rotating member 41, thereby reducing the pressure on the rotating connection between the rotating member 41 and the body 1.

[0055] The support assembly 8 includes a support plate 81 and a pull block 82. The support plate 81 is coaxially fixed on the top of the mounting cylinder 44. The support plate 81 is annular and its inner diameter is larger than the outer diameter of the fixed plate 171. The outer diameter of the support plate 81 is larger than the outer diameter of the mounting cylinder 44 and the outer side wall extends to the outside of the mounting cylinder 44; the pull block 82 includes a circular tube portion 83 and a bearing portion 84. The circular tube portion 83 is fixedly mounted on the lower surface of the mounting plate 11. The support plate 81, the mounting cylinder 44 and the piston rod of the pusher 52 are all located on the inner side of the circular tube portion 83. The bearing portion 84 is coaxially arranged on the inner side wall of the bottom end of the circular tube portion 83. The inner diameter of the bearing portion 84 is larger than the outer diameter of the mounting cylinder 44 and smaller than the outer diameter of the support plate 81. The bearing portion 84 is located below the support plate 81. When the expansion sleeve 51 clamps and positions the rotating shaft of the fan, a certain gap is maintained between the bearing portion 84 and the lower surface of the support plate 81.

[0056] The rotating member 41 is rotatably connected to the machine body 1 through a bearing. The bearing includes an outer ring body, a ball body, and an inner ring body. Grooves that are arc-shaped and for the ball body to rotate are formed on both side walls of the opposite sides of the outer ring body and the inner ring body. A plurality of ball bodies are connected by an elastic structure. There must be a certain gap between the outer ring body, the ball body, and the inner ring body, so that the rotating member 41 can move downward a small distance when a downward thrust is applied. The gap between the lower surface of the support disk 81 and the upper surface of the bearing portion 84 is less than or equal to the gap between the various structures of the bearing; after the downward thrust on the rotating member 41 is eliminated, the rotating member 41 rebounds under the elastic force of the elastic structure and moves upward to its original position.

[0057] When the sliding portion 54 is subjected to a downward thrust, due to the elastic force of a plurality of elastic members 172, the expansion sleeve 51 and the rotating member 41 first move downward simultaneously, so that the support disk 81 presses against the bearing portion 84 for support and positioning, and the piston rod of the pushing member 52 continues to move, causing the expansion sleeve 51 to move downward; when the piston rod of the pushing member 52 moves back, the plurality of elastic members 172 elongate, thereby reducing the thrust on the mounting cylinder 44. The rotating member 41 and the support disk 81 move upward to their original positions, causing the support disk 81 to disengage from the pulling block 82, reducing the risk of wear between the support disk 81 and the pulling block 82 during rotation, and reducing the risk of damage to the connection between the rotating member 41 and the machine body 1.

[0058] The working principle of the embodiment of the present application is as follows: When the piston rod of the pushing member 52 elongates, it pushes the rotating member 41 and the expansion sleeve 51 to move downward simultaneously, so that the support disk 81 supports on the pulling block 82 for positioning. The piston rod of the pushing member 52 continues to elongate to drive the expansion sleeve 51 to move downward; the fan is placed on the jig plate 23, and the positioning member 24 positions the fan. The lifting member 21 is activated to drive the fan to move upward, so that the rotating shaft of the fan extends into the receiving groove 55. The piston rod of the pushing member 52 retracts, and the expansion sleeve 51 moves upward under the action of a plurality of elastic members 172 to clamp and position the rotating shaft of the fan. Then the rotating member 41 and the expansion sleeve 51 move upward to their original positions simultaneously. The lifting member 21 drives the jig plate 23 and the positioning member 24 to move downward and disengage from the fan. The driving member 61 is activated to drive the rotating member 41, the expansion sleeve 51, and the fan to rotate simultaneously. The photoelectric switch 75 is used to monitor the data during the operation process.

[0059] After the test is completed, the lifting member 21 is activated to drive the jig plate 23 and the positioning member 24 to move upward, so that the jig plate 23 and the positioning member 24 support and position the fan. The piston rod of the pushing member 52 elongates, causing the expansion sleeve 51 to unlock the fan. The lifting member 21 drives the fan to move downward, and the fan is replaced for the next test, making the operating environment of the fan closer to the actual working state and improving the convenience and test effect of the test.

[0060] Embodiment 2, refer to Figure 5 and Figure 9, The difference between this embodiment and Embodiment 1 is that a positioning ring 85 is rotatably installed on the upper surface of the bearing part 84. The positioning ring 85 is coaxially arranged with the support disk 81, and the positioning ring 85 is supported on the lower surface of the support disk 81 for positioning; the support disk 81 rotationally drives the positioning ring 85 to rotate, so that the rotating part 41 can be supported and positioned, reducing the risk of damage to the connection between the rotating part 41 and the body 1 when the expansion sleeve 51 is pushed downward, and improving the test effect.

[0061] Embodiment 3, referring to Figure 5 and Figure 10 , The difference between this embodiment and Embodiment 1 is that the support assembly 8 includes a fixing plate 91, a bearing plate 92 and a bearing ring 93. The fixing plate 91 is fixedly installed on the upper surface of the body 1 and extends above the sliding part 54. A plurality of guide posts 95 are fixedly installed at intervals on the lower surface of the fixing plate 91 and above the sliding part 54. The plurality of guide posts 95 are located on both sides of the expansion sleeve 51 and are in a vertical state; the bearing plate 92 is vertically slidably installed on the plurality of guide posts 95, and the pushing member 52 is fixedly installed on the upper surface of the bearing plate 92. The piston rod of the pushing member 52 extends below the bearing plate 92 and above the sliding part 54.

[0062] The bearing ring 93 is fixedly installed on the lower surface of the bearing plate 92. A bearing disk 94 is coaxially and fixedly installed at the top of the sliding part 54. The bearing disk 94 and the support disk 81 have the same structure and dimensions, while the bearing ring 93 and the pulling block 82 have the same structure and dimensions; a pulling part extending below the bearing disk 94 is also provided on the bearing ring 93. The distance between the upper surface of the pulling part and the lower surface of the bearing disk 94 is the same as the distance between the upper surface of the bearing plate 92 and the lower surface of the fixing plate 91. At the same time, the force to push the expansion sleeve 51 to move after overcoming the elastic force of a plurality of elastic members 172 is greater than the sum of the weights of the fixing plate 91, the pushing member 52 and the bearing ring 93; a plurality of support columns 96 are fixedly installed at intervals on the upper surface of the body 1 and below the pulling part. The plurality of support columns 96 are in a vertical state. When the piston rod of the pushing member 52 is in a contracted state, the plurality of support columns 96 support on the lower surface of the pulling part for positioning, and a certain gap is maintained between the upper surface of the pulling part and the lower surface of the bearing disk 94.

[0063] When the piston rod of the pushing member 52 extends and abuts against the sliding part 54, a plurality of elastic members 172 generate a reaction force to make the sliding part 54 immovable, thereby driving the bearing plate 92 to move upward and approach the fixing plate 91, and the bearing ring 93 and the pulling part to move upward and approach the bearing disk 94 until the bearing plate 92 abuts against the fixing plate 91 and the pulling part abuts against the bearing disk 94 for positioning.

[0064] The piston rod of the pusher 52 continues to extend, generating a downward thrust on the sliding part 54. At the same time, the pulling part generates an upward pulling force on the bearing plate 94. The design of the thrust and pulling force in opposite directions can greatly reduce the downward pressure on the rotating part 41. Moreover, since the gravity of the fixing plate 91, the pusher 52, and the bearing ring 93 has already exerted pressure on the plurality of elastic members 172, the force required for the pusher 52 to act on the sliding part 54 when pushing the sliding part 54 downward is greatly reduced, that is, the reaction force on the pusher 52 when pushing the sliding part 54 downward is reduced. Moreover, when the piston rod of the pusher 52 retracts, the bearing plate 92 moves downward, and the pulling part is placed on the plurality of support columns 96 for positioning, and the pulling part is separated from the bearing plate 94, thereby reducing the risk of damage to both the connection between the rotating part 41 and the machine body 1 and the pusher 52, and improving the service life and test effect of the equipment.

[0065] The working principle of the embodiment of the present application is as follows: The piston rod of the pusher 52 extends and presses against the sliding part 54, first driving the bearing plate 92, the bearing ring 93, and the pulling part to move upward until the bearing plate 92 presses against the fixing plate 91 and the pulling part presses against the bearing plate 94 for positioning. When the piston rod of the pusher 52 continues to extend, it pushes the sliding part 54 and the expansion part 53 downward, thereby realizing the clamping and positioning of the expansion sleeve 51 on the rotating shaft of the fan; when the piston rod of the pusher 52 retracts, the pulling part is placed on the plurality of support columns 96 for positioning, and the pulling part is separated from the bearing plate 94, greatly reducing the reaction force on the pusher 52 when pushing the sliding part 54 downward, thereby reducing the risk of damage to both the connection between the rotating part 41 and the machine body 1 and the pusher 52, and improving the service life and test effect of the equipment.

[0066] The above are all the preferred embodiments of the present application. Without restricting the protection scope of the present application accordingly, therefore: Any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An inverted hanging vertical balancing machine, characterized in that: It includes a machine body (1), a feeding mechanism (2) and a testing mechanism (4) arranged on the machine body (1). The feeding mechanism (2) is located below the testing mechanism (4) and is used to convey the fan upward to the testing mechanism (4) for clamping and testing. The testing mechanism (4) includes: A rotating member (41) rotatably arranged on the machine body (1) and located above the feeding mechanism (2); A clamping assembly (5) arranged on the rotating member (41) and used for clamping and positioning the rotating shaft of the fan and rotating simultaneously with the rotating member (41); A driving assembly (6) used to drive the rotating member (41) to rotate; A testing assembly (7) used to monitor the operating data of the fan.

2. The inverted hanging vertical balancing machine according to claim 1, wherein: The clamping assembly (5) includes: An expansion sleeve (51) vertically slidably installed on the rotating member (41) with its top extending above the rotating member (41) and connected to the rotating member (41) through an elastic component (17). A tapered pressing surface (43) that fits the expansion sleeve (51) is provided at the bottom of the rotating member (41). The elastic component (17) pushes the expansion sleeve (51) upward and contracts under the action of the pressing surface (43) to clamp and position the rotating shaft of the fan; A pushing member (52) arranged on the machine body (1) and located above the expansion sleeve (51). When the pushing member (52) is activated, it pushes the expansion sleeve (51) downward, and the expansion sleeve (51) rebounds under its own elastic force to unlock the rotating shaft of the fan.

3. The inverted hanging vertical balancing machine according to claim 2, characterized in that: A receiving cavity (45) is provided at the top of the rotating member (41). The expansion sleeve (51) passes through the receiving cavity (45) and extends above the rotating member (41). The elastic component (17) includes: A fixed disk (171) arranged on the expansion sleeve (51) and extending into the receiving cavity (45); An elastic member (172) sleeved on the expansion sleeve (51) and limited by the receiving cavity (45). The elastic member (172) presses against the receiving cavity (45) and the fixed disk (171) and is used to push the fixed disk (171) to maintain an upward movement trend.

4. The inverted hanging vertical balancing machine according to claim 2, wherein: A support assembly (8) for supporting the top end of the rotating member (41) is arranged on the machine body (1). When the pushing member (52) pushes the expansion sleeve (51) downward, the support assembly (8) supports and positions the rotating member (41).

5. The inverted hanging vertical balancing machine according to claim 4, characterized in that: The support assembly (8) includes: A support disk (81) arranged on the top end of the rotating member (41); A pulling block (82) arranged on the machine body (1) and extending below the support disk (81). When the expansion sleeve (51) clamps the rotating shaft of the fan, a certain gap is maintained between the pulling block (82) and the support disk (81). When the pushing member (52) pushes the expansion sleeve (51) downward, it first drives the rotating member (41) and the support disk (81) to move downward simultaneously, and the support disk (81) abuts against the pulling block (82) for positioning. The pushing member (52) continues to move to drive the expansion sleeve (51) downward and unlock the rotating shaft of the fan by the expansion sleeve (51).

6. The inverted hanging vertical balancing machine according to claim 5, characterized in that: A positioning ring (85) for supporting and positioning on the lower surface of the support disk (81) is rotatably installed on the pulling block (82).

7. The inverted hanging vertical balancing machine according to claim 4, characterized in that: The support assembly (8) includes: The fixed plate (91) is arranged on the machine body (1), extends above the expansion sleeve (51), and is provided with a plurality of guide posts (95) at intervals; The bearing plate (92) is vertically slidably arranged on a plurality of guide posts (95); The bearing ring (93) is arranged on the lower surface of the bearing plate (92). The pushing member (52) is arranged on the bearing plate (92), and the piston rod vertically extends into the bearing ring (93). The top end of the expansion sleeve (51) extends into the bearing ring (93), is located below the pushing member (52), and is provided with a bearing disc (94); When the piston rod of the pushing member (52) contracts, the bearing ring (93) is placed on the machine body (1) under the action of gravity for positioning, extends below the bearing disc (94), and maintains a certain gap from the bearing disc (94); after the piston rod of the pushing member (52) extends, it abuts against the top end of the expansion sleeve (51) and is used to drive the bearing plate (92) and the bearing ring (93) to move upward, so that the bearing plate (92) abuts against the fixed plate (91) and the bearing ring (93) abuts against the bearing disc (94) for positioning. When the piston rod of the pushing member (52) continues to extend, it pushes the expansion sleeve (51) downward.

8. The inverted hanging vertical balancing machine according to claim 1, wherein: The test assembly (7) includes: The test plate (71) is vertically slidably arranged on the machine body (1), horizontally extends above the fan, and is horizontally provided with a plurality of fixing holes at intervals; The locking member I (72) is used to lock the vertical position of the test plate (71); The mounting seat (73) is horizontally slidably arranged on the test plate (71); The locking member II (74) is arranged on the mounting seat (73) and is connected to the fixing hole for positioning; The photoelectric switch (75) is arranged on the mounting seat (73) and is used to monitor the fan test data.

9. The inverted hanging vertical balancing machine according to claim 1, characterized in that: The feeding mechanism (2) includes: The lifting member (21) is arranged on the machine body (1); The feeding seat (22) is arranged on the lifting member (21) and vertically moves under the action of the lifting member (21); The jig plate (23) is detachably arranged on the feeding seat (22) through the connecting component (3) and is used to place the fan; The positioning member (24) is arranged on the jig plate (23) and positions the position of the fan.

10. The inverted hanging vertical balancing machine according to claim 9, characterized in that: A plurality of connecting components (3) are arranged at intervals. The connecting component (3) includes: The fixed column (31) is arranged on the upper surface of the feeding seat (22) and is inserted and installed on the lower surface of the jig plate (23) for positioning; The tapered column (32) is coaxially arranged at the top of the fixed column (31), is tapered, and is used for guiding when the fixed column (31) is inserted into the jig plate (23).

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