Impeller tightening device

Abstract

The utility model discloses an impeller tightening device which comprises an installation frame, an impeller clamping assembly, a rotor clamping assembly and a rotating assembly. The impeller clamping assembly comprises an impeller clamping pneumatic claw, the rotor clamping assembly comprises a rotor clamping pneumatic claw, and the rotating assembly comprises a rotating motor and a transmission assembly; the impeller clamping pneumatic claw, the rotor clamping pneumatic claw and the rotating motor are respectively mounted on the mounting frame; the impeller clamping pneumatic claw can be lifted up and down, a clamping claw of the rotor clamping pneumatic claw is arranged upwards, and a clamping claw of the impeller clamping pneumatic claw is positioned right above the clamping claw of the rotor clamping pneumatic claw; the impeller clamping pneumatic claw is used for clamping the peripheral surface of the impeller to be assembled; the rotor clamping pneumatic claw is used for clamping the lower end of a to-be-assembled rotor and enabling the upper end of the to-be-assembled rotor to be upwards aligned with a threaded mounting hole in the bottom of the to-be-assembled impeller; the rotating motor drives the rotor clamping pneumatic claw to rotate through the transmission assembly. Through cooperation of the impeller clamping pneumatic claw, the rotor clamping pneumatic claw, the rotating motor and the transmission assembly, the impeller can be tightened, and the blade is prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of fan motor installation, in particular to an impeller tightening device. Background Art

[0002] Household appliances in the prior art often use micro-metering pumps to transport liquid materials through pipelines, and a fan motor is installed in the micro-metering pump.

[0003] The fan motor includes an impeller-stator assembly, which includes an impeller, a stator and a rotor. The middle part of the rotor is installed in the stator, and the upper and lower ends of the rotor are exposed from the stator. The upper end of the rotor is used to screw to the threaded mounting hole at the bottom of the impeller.

[0004] Since the impeller used in the micro-metering pump is small in size, if the impeller-stator assembly is assembled manually, the impeller blades are easily broken due to the force during the assembly process, resulting in reduced assembly quality and work efficiency of the impeller-stator assembly. Utility Model Content

[0005] In view of the above shortcomings, the purpose of the present invention is to provide an impeller tightening device to solve the problems that the impeller blades are easily broken during the assembly process, and the assembly quality of the impeller stator assembly is poor and the working efficiency is low.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] An impeller tightening device comprises a mounting frame, an impeller clamping assembly, a rotor clamping assembly and a rotating assembly;

[0008] The impeller clamping assembly includes an impeller clamping claw, the rotor clamping assembly includes a rotor clamping claw, and the rotating assembly includes a rotating motor and a transmission assembly;

[0009] The impeller clamping claws, the rotor clamping claws and the rotating motor are respectively installed on the mounting frame; the impeller clamping claws can be raised and lowered, the jaws of the rotor clamping claws are set upward, and the jaws of the impeller clamping claws are located directly above the jaws of the rotor clamping claws; the impeller clamping claws are used to clamp the outer peripheral surface of the impeller to be assembled; the rotor clamping claws are used to clamp the lower end of the rotor to be assembled and to align the upper end of the rotor to be assembled upward with the threaded mounting hole at the bottom of the impeller to be assembled; the rotating motor drives the rotor clamping claws to rotate through the transmission assembly.

[0010] Furthermore, the mounting frame includes a first mounting plate, and a first through hole is formed in the middle of the first mounting plate;

[0011] The impeller clamping assembly also includes a lifting cylinder, a support plate and two guide columns;

[0012] The guide posts are arranged upright, the lower ends of the two guide posts are fixed to the top surface of the first mounting plate, and the upper ends of the two guide posts extend upward; the support plate extends in the horizontal direction, and the two ends of the support plate are slidably mounted on the outer circumferences of the two guide posts;

[0013] The first through hole is located between the two guide posts and directly below the support plate;

[0014] The top of the lifting cylinder is installed against the bottom surface of the first mounting plate; the output end of the lifting cylinder passes upward through the first through hole and is connected to the bottom surface of the support plate;

[0015] The impeller clamping claw frame is mounted on the top surface of the support plate.

[0016] Furthermore, the mounting frame further includes a second mounting plate, and the first mounting plate is further provided with a second through hole;

[0017] The second through hole is located on one side of the support plate, and the clamping claw of the impeller clamping claw is downwardly aligned with the second through hole;

[0018] The rotor clamping claw and the rotating motor are respectively mounted on the second mounting plate; the clamping claws of the rotor clamping claw are aligned upward and close to the second through hole.

[0019] Furthermore, the rotor clamping assembly further includes a pneumatic slip ring, a first support frame and a connecting rod;

[0020] The pneumatic slip ring and the first support frame are respectively mounted on the top surface of the second mounting plate;

[0021] The lower end of the connecting rod passes through the first support frame and is connected to the top of the pneumatic slip ring; the upper end of the connecting rod is connected to the bottom of the rotor clamping claw; the air source output end of the pneumatic slip ring is connected to the air source input end of the rotor clamping claw through the connecting rod, and the air source input end of the pneumatic slip ring is connected to the output end of the external air source supply device;

[0022] The rotating motor drives the middle portion of the connecting rod to rotate through the rotating assembly.

[0023] Furthermore, the rotating assembly further includes a second support frame; the transmission assembly includes a transmission belt, a first transmission wheel and a second transmission wheel;

[0024] The first transmission wheel is sleeved on the outer circumference of the connecting rod, and the bottom surface of the first transmission wheel abuts against the top surface of the first support frame;

[0025] The second supporting frame is mounted on the top surface of the second mounting plate;

[0026] The output end of the rotating motor passes through the top of the second support frame and is exposed, the second transmission wheel is sleeved on the output end of the rotating motor, and the bottom surface of the second transmission wheel abuts against the top surface of the second support frame;

[0027] The transmission belt is sleeved on the outer circumferences of the first transmission wheel and the second transmission wheel, and the inner circumference of the transmission belt is meshed with the outer circumferences of the first transmission wheel and the second transmission wheel.

[0028] Furthermore, the impeller clamping assembly further includes two guide sleeves;

[0029] The two guide sleeves are respectively sleeved on the outer circumferences of the two guide posts, and the bottom surfaces of the guide sleeves abut against the bottom surface of the support plate.

[0030] Furthermore, the impeller clamping assembly further includes a limiting plate;

[0031] The limiting plate extends in a horizontal direction, is located above the supporting plate, and the top surfaces of the two guide columns are respectively in contact with the limiting plate.

[0032] Preferably, the aperture of the second through hole is larger than the clamping jaw diameter of the rotor clamping air jaw.

[0033] The technical solution of the impeller tightening device proposed in the utility model has the beneficial effect that: through the cooperation of the impeller clamping claws, the rotor clamping claws, the rotating motor and the transmission assembly, the upper end of the rotor to be assembled can be tightened into the threaded mounting hole at the bottom of the impeller, thereby completing the assembly of the impeller stator assembly, saving labor, avoiding the phenomenon of blade breakage, and improving the assembly quality and work efficiency of the impeller stator assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural schematic diagram of an embodiment of an impeller tightening device of the present utility model;

[0035] Figure 2 This is a schematic structural diagram of an impeller clamping assembly in one embodiment of the present utility model;

[0036] Figure 3 This is a schematic diagram of the installation structure of the rotor clamping assembly and the rotating assembly in one embodiment of the present utility model;

[0037] Figure 4 1 is a schematic structural diagram of an assembled impeller stator assembly in one embodiment of the present invention;

[0038] Among them: mounting frame 1; impeller clamping assembly 2; rotor clamping assembly 3; rotating assembly 4; first mounting plate 11; second mounting plate 12; impeller clamping claw 21; lifting cylinder 22; support plate 23; guide column 24; guide sleeve 25; limit plate 26; rotor clamping claw 31; pneumatic slip ring 32; first support frame 33; connecting rod 34; rotating motor 41; transmission assembly 42; second support frame 43; second through hole 111; first through hole 112; transmission belt 421; first transmission wheel 422; second transmission wheel 423. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-4 The technical solution of the utility model is further illustrated through specific implementation methods.

[0040] The accompanying drawings are for illustrative purposes only and are not to be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0041] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium, which can be said to be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0042] An impeller tightening device includes a mounting frame 1, an impeller clamping assembly 2, a rotor clamping assembly 3 and a rotating assembly 4;

[0043] The impeller clamping assembly 2 includes an impeller clamping claw 21, the rotor clamping assembly 3 includes a rotor clamping claw 31, and the rotating assembly 4 includes a rotating motor 41 and a transmission assembly 42;

[0044] The impeller clamping claws 21, the rotor clamping claws 31 and the rotating motor 41 are respectively installed on the mounting frame 1; the impeller clamping claws 21 can be raised and lowered, the jaws of the rotor clamping claws 31 are set upward, and the jaws of the impeller clamping claws 21 are located directly above the jaws of the rotor clamping claws 31; the impeller clamping claws 21 are used to clamp the outer peripheral surface of the impeller 5 to be assembled; the rotor clamping claws 31 are used to clamp the lower end of the rotor 7 to be assembled, and to align the upper end of the rotor 7 to be assembled upward with the threaded mounting hole at the bottom of the impeller 5 to be assembled; the rotating motor 41 drives the rotor clamping claws 31 to rotate through the transmission assembly 42.

[0045] Figure 1 This is a structural schematic diagram of an embodiment of an impeller tightening device of the present utility model; Figure 2 It is a structural diagram of the impeller clamping assembly 2. Figure 3 This is a schematic diagram of the installation structure of the rotor clamping component 3 and the rotating component 4. Figure 4 It is a structural schematic diagram of the assembled impeller-stator assembly. The impeller-stator assembly includes an impeller 5, a stator 6 and a rotor 7. The middle part of the rotor 7 is rotatably mounted in the stator 6, and the upper and lower ends of the rotor 7 are exposed to the stator 6. The upper end of the rotor 7 is used to be screwed to the threaded mounting hole at the bottom of the impeller 5.

[0046] like Figure 1-3 As shown, first place the top of the impeller 5 to be assembled between the jaws of the opened impeller clamping claws 21, and close the jaws of the impeller clamping claws 21 to clamp the outer peripheral surface of the impeller 5 to be assembled, then insert the lower end of the rotor 7 to be assembled between the jaws of the rotor clamping claws 31, and then close the jaws of the rotor clamping claws 31 to clamp the lower end of the rotor 7 to be assembled; then let the impeller clamping claws 21 descend until the threaded mounting holes at the bottom of the impeller 5 to be assembled are aligned and abut against the upper end of the rotor 7 to be assembled, and then the impeller clamping claws 21 stop descending; then start The rotating motor 41 is started, and the rotating motor 41 drives the rotor clamping claw 31 to rotate through the transmission assembly 42, so that the upper end of the rotor 7 to be assembled rotates and extends into the threaded mounting hole at the bottom of the impeller 5; when the rotation torque of the rotating motor 41 reaches the set threshold, it can be considered that the upper end of the rotor 7 is tightened to the threaded mounting hole, and the rotating motor 41 can be turned off, so that the jaws of the impeller clamping claw 21 are opened and raised to reset. At the same time, the jaws of the rotor clamping claw 31 are opened, and the assembled impeller stator assembly can be taken out from the jaws of the rotor clamping claw 31.

[0047] Furthermore, the mounting frame 1 includes a first mounting plate 11 , and a first through hole 112 is formed in the middle of the first mounting plate 11 ;

[0048] The impeller clamping assembly 2 further includes a lifting cylinder 22, a support plate 23 and two guide posts 24;

[0049] The guide posts 24 are arranged upright, with the lower ends of the two guide posts 24 fixed to the top surface of the first mounting plate 11, and the upper ends of the two guide posts 24 extending upward; the support plate 23 extends in the horizontal direction, and the two ends of the support plate 23 are slidably mounted on the outer circumferences of the two guide posts 24;

[0050] The first through hole 112 is located between the two guide posts 24 and directly below the support plate 23;

[0051] The top of the lifting cylinder 22 is installed against the bottom surface of the first mounting plate 11; the output end of the lifting cylinder 22 passes upward through the first through hole 112 and is connected to the bottom surface of the support plate 23;

[0052] The impeller clamping claws 21 are mounted on the top surface of the support plate 23 .

[0053] like Figure 1 and Figure 2 As shown, the support plate 23 is driven to move up and down by the lifting cylinder 22 , and the impeller clamping claw 21 is simultaneously driven to move up and down relative to the top surface of the first mounting plate 11 .

[0054] Furthermore, the mounting frame 1 further includes a second mounting plate 12, and the first mounting plate 11 further includes a second through hole 111;

[0055] The second through hole 111 is located on one side of the support plate 23 , and the clamping claw of the impeller clamping claw 21 is aligned downward with the second through hole 111 ;

[0056] The rotor clamping claw 31 and the rotating motor 41 are respectively mounted on the second mounting plate 12 ; the clamping claws of the rotor clamping claw 31 are aligned upward and close to the second through hole 111 .

[0057] like Figure 1-3 As shown, the jaws of the impeller clamping claw 21 are aligned vertically with the jaws of the rotor clamping claw 31 through the second through hole 111, so that by checking whether the center points of the jaws of the impeller clamping claw 21, the center points of the jaws of the rotor clamping claw 31 and the center points of the second through hole 111 are located on the same straight line perpendicular to the plate surface of the first mounting plate 11, it can be determined whether the jaws of the impeller clamping claw 21 and the jaws of the rotor clamping claw 31 are aligned vertically, which can improve the operational convenience of confirming whether the jaws of the impeller clamping claw 21 and the jaws of the rotor clamping claw 31 are misaligned.

[0058] Furthermore, the rotor clamping assembly 3 further includes a pneumatic slip ring 32, a first support frame 33 and a connecting rod 34;

[0059] The pneumatic slip ring 32 and the first support frame 33 are respectively mounted on the top surface of the second mounting plate 12;

[0060] The lower end of the connecting rod 34 passes through the first support frame 33 and is connected to the top of the pneumatic slip ring 32; the upper end of the connecting rod 34 is connected to the bottom of the rotor clamping claw 31; the air source output end of the pneumatic slip ring 32 is connected to the air source input end of the rotor clamping claw 31 through the connecting rod 34, and the air source input end of the pneumatic slip ring 32 is connected to the output end of the external air source supply device;

[0061] The rotating motor 41 drives the middle portion of the connecting rod 34 to rotate through the rotating assembly 4 .

[0062] like Figure 1 and Figure 2 As shown, the pneumatic slip ring 32 and the connecting rod 34 cooperate to provide a power air source for the rotor clamping claw 31, which can prevent the air pipe that supplies the power air source to the rotor clamping claw 31 from being unable to transport the power air source due to twisting during the rotation process, and can improve the operating stability of the rotor clamping claw 31 during the rotation process.

[0063] Furthermore, the rotating assembly 4 further includes a second support frame 43; the transmission assembly 42 includes a transmission belt 421, a first transmission wheel 422 and a second transmission wheel 423;

[0064] The first transmission wheel 422 is sleeved on the outer circumference of the connecting rod 34 , and the bottom surface of the first transmission wheel 422 abuts against the top surface of the first support frame 33 ;

[0065] The second support frame 43 is mounted on the top surface of the second mounting plate 12;

[0066] The output end of the rotating motor 41 passes upward through the top of the second support frame 43 and is exposed. The second transmission wheel 423 is sleeved on the output end of the rotating motor 41. The bottom surface of the second transmission wheel 423 abuts against the top surface of the second support frame 43.

[0067] The transmission belt 421 is sleeved on the outer circumferences of the first transmission wheel 422 and the second transmission wheel 423 , and the inner circumference of the transmission belt 421 is meshed with the outer circumferences of the first transmission wheel 422 and the outer circumferences of the second transmission wheel 423 .

[0068] like Figure 3 As shown, the bottom surface of the first transmission wheel 422 is installed against the top surface of the first support frame 33, and the bottom surface of the second transmission wheel 423 is installed against the top surface of the second support frame 43, so that the rotating motor 41 has better stability when driving the connecting rod 34 to rotate through the transmission belt 421, the first transmission wheel 422 and the second transmission wheel 423, thereby improving the rotation stability of the rotor clamping claw 31.

[0069] Furthermore, the impeller clamping assembly 2 further includes two guide sleeves 25;

[0070] The two guide sleeves 25 are respectively sleeved on the outer circumferences of the two guide posts 24 , and the bottom surfaces of the guide sleeves 25 abut against the bottom surface of the support plate 23 .

[0071] like Figure 1 and Figure 2As shown, the cooperation between the guide sleeve 25 and the guide column 24 can prevent the support plate 23 from swinging during the lifting process, thereby improving the lifting stability of the impeller clamping claw 21.

[0072] Furthermore, the impeller clamping assembly 2 further includes a limiting plate 26;

[0073] The limiting plate 26 extends in a horizontal direction. The limiting plate 26 is located above the supporting plate 23 . The top surfaces of the two guide posts 24 are respectively in contact with the limiting plates 26 .

[0074] like Figure 1 and Figure 2 As shown, the upward movement of the support plate 23 can be limited by the limit plate 26 to prevent the support plate 23 from crossing the guide column 24 and falling off when rising.

[0075] Preferably, the aperture of the second through hole 111 is larger than the clamping claw diameter of the rotor clamping claw 31 .

[0076] With such an arrangement, the entire top surface of the jaws of the rotor clamping claw 31 can be seen from above through the second through hole 111, which is conducive to improving the operational convenience of inserting the lower end of the rotor 7 to be assembled; and, when the length of the rotor 7 to be assembled is relatively short, the jaws of the rotor clamping claw 31 can also drive the upper end of the rotor 7 to be exposed upward on the top surface of the first mounting plate 11, so that the rotor clamping claw 31 has a longer upward movement stroke.

[0077] In summary, if Figure 1-3 In the embodiment of the utility model shown, the impeller tightening device, through the cooperation of the impeller clamping claws 21, the rotor clamping claws 31, the rotating motor 41 and the transmission assembly 42, can tighten the upper end of the rotor 7 to be assembled into the threaded mounting hole at the bottom of the impeller 5, thereby completing the assembly of the impeller stator assembly, saving labor, avoiding the phenomenon of blade breakage, and improving the assembly quality and work efficiency of the impeller stator assembly.

[0078] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. An impeller tightening device, characterized in that: It includes a mounting frame, an impeller clamping assembly, a rotor clamping assembly and a rotating assembly; The impeller clamping assembly includes an impeller clamping claw, the rotor clamping assembly includes a rotor clamping claw, and the rotating assembly includes a rotating motor and a transmission assembly; The impeller clamping claws, the rotor clamping claws and the rotating motor are respectively installed on the mounting frame; the impeller clamping claws can be raised and lowered, the jaws of the rotor clamping claws are set upward, and the jaws of the impeller clamping claws are located directly above the jaws of the rotor clamping claws; the impeller clamping claws are used to clamp the outer peripheral surface of the impeller to be assembled; the rotor clamping claws are used to clamp the lower end of the rotor to be assembled and to align the upper end of the rotor to be assembled upward with the threaded mounting hole at the bottom of the impeller to be assembled; the rotating motor drives the rotor clamping claws to rotate through the transmission assembly.

2. The impeller tightening device according to claim 1, characterized in that: The mounting frame includes a first mounting plate, and a first through hole is formed in the middle of the first mounting plate; The impeller clamping assembly also includes a lifting cylinder, a support plate and two guide columns; The guide posts are arranged upright, the lower ends of the two guide posts are fixed to the top surface of the first mounting plate, and the upper ends of the two guide posts extend upward; the support plate extends in the horizontal direction, and the two ends of the support plate are slidably mounted on the outer circumferences of the two guide posts; The first through hole is located between the two guide posts and directly below the support plate; The top of the lifting cylinder is installed against the bottom surface of the first mounting plate; the output end of the lifting cylinder passes upward through the first through hole and is connected to the bottom surface of the support plate; The impeller clamping claw frame is mounted on the top surface of the support plate.

3. The impeller tightening device according to claim 2, characterized in that: The mounting frame further includes a second mounting plate, and the first mounting plate is further provided with a second through hole; The second through hole is located on one side of the support plate, and the clamping claw of the impeller clamping claw is downwardly aligned with the second through hole; The rotor clamping claw and the rotating motor are respectively mounted on the second mounting plate; the clamping claws of the rotor clamping claw are aligned upward and close to the second through hole.

4. The impeller tightening device according to claim 3, characterized in that: The rotor clamping assembly further includes a pneumatic slip ring, a first support frame and a connecting rod; The pneumatic slip ring and the first support frame are respectively mounted on the top surface of the second mounting plate; The lower end of the connecting rod passes through the first support frame and is connected to the top of the pneumatic slip ring; the upper end of the connecting rod is connected to the bottom of the rotor clamping claw; the air source output end of the pneumatic slip ring is connected to the air source input end of the rotor clamping claw through the connecting rod, and the air source input end of the pneumatic slip ring is connected to the output end of the external air source supply device; The rotating motor drives the middle portion of the connecting rod to rotate through the rotating assembly.

5. The impeller tightening device according to claim 4, characterized in that: The rotating assembly further includes a second support frame; the transmission assembly includes a transmission belt, a first transmission wheel and a second transmission wheel; The first transmission wheel is sleeved on the outer circumference of the connecting rod, and the bottom surface of the first transmission wheel abuts against the top surface of the first support frame; The second supporting frame is mounted on the top surface of the second mounting plate; The output end of the rotating motor passes through the top of the second support frame and is exposed, the second transmission wheel is sleeved on the output end of the rotating motor, and the bottom surface of the second transmission wheel abuts against the top surface of the second support frame; The transmission belt is sleeved on the outer circumferences of the first transmission wheel and the second transmission wheel, and the inner circumference of the transmission belt is meshed with the outer circumferences of the first transmission wheel and the second transmission wheel.

6. The impeller tightening device according to claim 2, characterized in that: The impeller clamping assembly also includes two guide sleeves; The two guide sleeves are respectively sleeved on the outer circumferential surfaces of the two guide posts, and the bottom surfaces of the guide sleeves abut against the bottom surface of the support plate.

7. The impeller tightening device according to claim 2, characterized in that: The impeller clamping assembly further includes a limit plate; The limiting plate extends in a horizontal direction, is located above the supporting plate, and the top surfaces of the two guide columns are respectively in contact with the limiting plate.

8. The impeller tightening device according to claim 3, characterized in that: The aperture of the second through hole is larger than the diameter of the clamping claw of the rotor clamping air claw.

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