Impeller polishing device of centrifugal fan

Abstract

The impeller polishing device of the centrifugal fan comprises a square pipe, an installation plate is fixedly installed at the upper end of the square pipe, a polishing wheel is arranged on the right side of the upper end of the installation plate, a driving mechanism is arranged in the square pipe and on the installation plate, and the driving mechanism is used for driving the polishing wheel to rotate. And a dust collecting device is arranged on the outer side of the square pipe. A worker holds the handle and the square pipe by hand, the polishing wheel at the front end of the square pipe makes contact with a weld joint to be polished, then the motor is started, rotary polishing of the polishing wheel is achieved through transmission of the belt and the belt pulley, the small impeller rotates to work while the polishing wheel rotates, and dust generated during work of the polishing wheel is discharged through the dust collection opening and the dust collection pipeline. Dust enters the dust collecting box through the mounting box and the dust outlet, is isolated and collected in the dust collecting box through the filter screen, and is ground through electric rotation of the grinding wheel, and a person does not need to rub the ground position back and forth, so that manpower is saved to a certain extent, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, in particular to an impeller grinding device for a centrifugal fan. Background Art

[0002] Impellers play a very important role in the industrial system. Impellers refer to the wheel with moving blades. There are four types: closed, front semi-open, rear semi-open and open. The blade shapes of fan impellers include single plate type, arc type and wing type.

[0003] In the prior art, large fan impellers need to have their welds polished. Without special equipment, workers can only use hand-held polishing tools to remove welding impurities by reciprocating motion of the polishing block installed at the front end of a long rod on the weld, which is inefficient and wastes a lot of manpower. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, the utility model provides an impeller grinding device for a centrifugal fan.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an impeller grinding device for a centrifugal fan, comprising a square tube, a mounting plate is fixedly installed on the upper end of the square tube, a grinding wheel is arranged on the right side of the upper end of the mounting plate, a driving mechanism is arranged inside the square tube and on the mounting plate, the driving mechanism is used to drive the grinding wheel to rotate, and a dust collecting device is arranged on the outer side of the square tube for collecting impurities and dust polished off.

[0006] Furthermore, the driving mechanism includes a commutator, which is fixedly mounted on the left side of the upper end of the mounting plate, the left side of the commutator is fixedly connected to the motor, the lower output end of the commutator is fixedly connected to the first pulley, the belt is tensionedly mounted on the first pulley, the right side of the belt is tensionedly mounted on the second pulley, the transmission shaft is fixedly mounted on the second pulley, the transmission shaft is movably mounted inside the square tube, and a grinding wheel is fixedly mounted on the upper end of the transmission shaft.

[0007] Furthermore, the first pulley, the belt and the second pulley are located inside the square tube.

[0008] Furthermore, the dust collecting device includes an installation box, which is fixedly installed on the right side of the lower end of the square tube. A small impeller is arranged inside the installation box. An installation shaft is fixedly installed on the upper end of the small impeller. The upper end of the installation shaft is fixedly installed on the transmission shaft through a column. A dust collection pipe is fixedly installed on the lower end of the installation box, and a dust collecting box is fixedly installed on the left side of the installation box through a connecting assembly.

[0009] Furthermore, a dust suction port is arranged on the left side of the upper end of the dust suction pipe, and the dust suction port is arranged on the right side of the grinding wheel.

[0010] Further, the connecting assembly includes a dust box inlet, which is arranged on the right side of the dust box, a threaded sleeve is installed on the outer side of the dust box inlet through threaded cooperation, the right side of the threaded sleeve is pressed and contacted with the mounting ring, the right side of the mounting ring is fixedly installed with the dust outlet, and the right side of the dust outlet is fixedly installed with the mounting box.

[0011] Furthermore, a filter screen is arranged on the left side of the dust collecting box.

[0012] The beneficial effects of the utility model are as follows: a worker holds the handle and the square tube, makes the grinding wheel at the front end of the square tube contact the weld to be ground, and then starts the motor, and realizes the rotation grinding of the grinding wheel through the transmission of the belt and the pulley. When the grinding wheel rotates, the small impeller rotates at the same time, and the dust generated by the grinding wheel enters the dust collecting box through the dust suction port, the dust suction pipe, the installation box and the dust outlet. The dust is isolated and collected in the dust collecting box through the filter screen. The grinding wheel is electrically rotated for grinding, and there is no need for people to rub the grinding area back and forth, which saves manpower to a certain extent and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the utility model;

[0016] Figure 3 It is an enlarged view of A of the present utility model.

[0017] In the figure: 1. square tube, 2. handle, 3. mounting plate, 4. commutator, 5. motor, 6. filter, 7. first pulley, 8. belt, 9. second pulley, 10. transmission shaft, 11. grinding wheel, 12. dust suction port, 13. dust suction pipe, 14. mounting box, 15. small impeller, 16. mounting shaft, 17. column, 18. dust box, 19. dust outlet, 20. threaded sleeve, 21. dust box inlet, 22. mounting ring. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0019] like Figure 1and Figure 2 As shown, the utility model includes a square tube 1, and a mounting plate 3 is fixedly installed at the opening of the upper end of the square tube 1 by bolts. A driving mechanism is arranged inside the square tube 1 and on the upper end of the mounting plate 3. The driving mechanism includes a commutator 4, and the commutator 4 is fixedly installed on the upper left side of the mounting plate 3 by bolts. The left side of the commutator 4 is fixedly connected to the motor 5, and the lower output end of the commutator 4 is fixedly connected to the first pulley 7, a belt 8 is tensioned and installed on the first pulley 7, and a second pulley 9 is tensioned and installed on the right side of the belt 8, and a transmission shaft 10 is fixedly installed on the second pulley 9. The transmission shaft 10 is movably installed in the interior of the square tube 1 through a bearing, and a grinding wheel 11 is fixedly installed on the upper end of the transmission shaft 10 by bolts. By starting the motor 5, the rotation of the grinding wheel 11 is realized through the transmission of the first pulley 7, the second pulley 9 and the belt 8, and the first pulley 7, the belt 8 and the second pulley 9 are all arranged in the interior of the square tube 1.

[0020] like Figure 2 As shown, a dust collecting device is arranged on the outside of the square tube 1, and the dust collecting device comprises an installation box 14, and the installation box 14 is fixedly installed on the right side of the lower end of the square tube 1 by bolts, and a small impeller 15 is arranged inside the installation box 14, and an installation shaft 16 is fixedly installed on the upper end of the small impeller 15, and the upper end of the installation shaft 16 is fixedly installed on the transmission shaft 10 through a column 17, so as to transmit the torque generated by the transmission shaft 10, and a dust suction pipe 13 is welded and installed on the lower end of the installation box 14, and a dust suction port 12 is arranged on the left side of the upper end of the dust suction pipe 13, and the dust suction port 12 is arranged on the right side of the grinding wheel 11, and the dust generated by the grinding wheel 11 is sucked out by the rotation of the small impeller 15, and a dust collecting box 18 is fixedly installed on the left side of the installation box 14 through a connecting assembly, and a filter screen 6 is arranged on the left side of the dust collecting box 18, and the dust is isolated and collected in the dust collecting box 18 through the filter screen 6.

[0021] like Figure 2 and Figure 3 As shown, the connecting assembly includes a dust box inlet 21, which is arranged on the right side of the dust box 18. A threaded sleeve 20 is installed on the outer side of the dust box inlet 21 through threaded cooperation. The right side of the threaded sleeve 20 is pressed and contacted to install a mounting ring 22. The right side of the mounting ring 22 is fixedly installed with a dust outlet 19, and the right side of the dust outlet 19 is welded to install a mounting box 14.

[0022] like Figure 1 As shown, a handle 2 is welded and installed on the lower left end of the square tube 1, so that workers can hold the square tube 1 for grinding operations.

[0023] When the utility model is in use, a worker holds the handle 2 and the square tube 1, makes the grinding wheel 11 at the front end of the square tube 1 contact the area to be polished, and then starts the motor 5, and realizes the rotation of the grinding wheel 11 through the transmission of the belt 8, the first pulley 7 and the second pulley 9. While the grinding wheel 11 rotates, the small impeller 15 rotates and works at the same time, and the dust generated by the grinding wheel 11 enters the dust collecting box 18 through the dust suction port 12, the dust suction pipe 13, the installation box 14 and the dust outlet 19, and the dust is isolated and collected in the dust collecting box 18 through the filter screen 6. The grinding wheel 11 is rotated for grinding, and there is no need for people to rub the grinding area back and forth, which saves manpower to a certain extent and improves work efficiency.

[0024] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A centrifugal fan impeller grinding device, comprising a square tube (1), characterized in that: The upper end of the square tube (1) is fixedly mounted with a mounting plate (3), a grinding wheel (11) is arranged on the right side of the upper end of the mounting plate (3), a driving mechanism is arranged inside the square tube (1) and on the mounting plate (3), the driving mechanism is used to drive the grinding wheel (11) to rotate, a dust collecting device is arranged on the outer side of the square tube (1), and is used to collect impurities and dust from grinding, the driving mechanism comprises a commutator (4), the commutator (4) is fixedly mounted on the left side of the upper end of the mounting plate (3), the left side of the commutator (4) is fixedly connected to the motor (5), the lower output end of the commutator (4) is fixedly connected to the first pulley (7), a belt (8) is tensionedly mounted on the first pulley (7), and a second pulley is tensionedly mounted on the right side of the belt (8) (9), a transmission shaft (10) is fixedly mounted on the second pulley (9), the transmission shaft (10) is movably mounted inside the square tube (1), a grinding wheel (11) is fixedly mounted on the upper end of the transmission shaft (10), the dust collecting device comprises a mounting box (14), the mounting box (14) is fixedly mounted on the right side of the lower end of the square tube (1), a small impeller (15) is arranged inside the mounting box (14), a mounting shaft (16) is fixedly mounted on the upper end of the small impeller (15), the upper end of the mounting shaft (16) is fixedly mounted on the transmission shaft (10) through a column (17), a dust collection pipe (13) is fixedly mounted on the lower end of the mounting box (14), and a dust collecting box (18) is fixedly mounted on the left side of the mounting box (14) through a connecting component.

2. The impeller grinding device for a centrifugal fan according to claim 1, characterized in that: The first pulley (7), the belt (8) and the second pulley (9) are located inside the square tube (1).

3. The impeller grinding device for a centrifugal fan according to claim 2, characterized in that: A dust suction port (12) is provided on the left side of the upper end of the dust suction pipe (13), and the dust suction port (12) is provided on the right side of the grinding wheel (11).

4. The impeller grinding device for a centrifugal fan according to claim 1, characterized in that: The connection assembly comprises a dust box inlet (21), the dust box inlet (21) is arranged on the right side of the dust box (18), a threaded sleeve (20) is installed on the outer side of the dust box inlet (21) through threaded matching, the right side of the threaded sleeve (20) is pressed and contacted with the mounting ring (22), the right side of the mounting ring (22) is fixedly mounted with the dust outlet (19), and the right side of the dust outlet (19) is fixedly mounted with the mounting box (14).

5. The impeller grinding device for a centrifugal fan according to claim 4, characterized in that: A filter screen (6) is arranged on the left side of the dust collecting box (18).

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