CN214273989U - Centrifugal fan of support regulation formula - Google Patents
Centrifugal fan of support regulation formula Download PDFInfo
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- CN214273989U CN214273989U CN202023001223.XU CN202023001223U CN214273989U CN 214273989 U CN214273989 U CN 214273989U CN 202023001223 U CN202023001223 U CN 202023001223U CN 214273989 U CN214273989 U CN 214273989U
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Abstract
The utility model discloses a bracket-adjusting centrifugal fan, wherein a fan bracket is arranged on the front end surface of a volute casing support plate at the front side in a rotating adjustment way by taking the rotating central shaft of a central hole as a central shaft; a pair of L-shaped motor supporting seats are arranged on the upper end surface of the vertical moving frame in a left-right moving manner; a support leg pressing plate is vertically and movably arranged on the vertical part of the motor supporting seat; a long hole-shaped adjusting groove which penetrates through the supporting leg pressing plate up and down is formed on the supporting leg pressing plate; a plurality of connecting threaded holes are formed in the upper end surface of the horizontal part of the motor supporting seat; the horizontal part of the supporting leg is arranged between the supporting leg pressing plate and the horizontal part of the motor supporting seat; the horizontal part of the supporting leg is formed with a connecting through hole; the motor fixing bolt vertically passes through the adjusting groove and the connecting through hole, and the bottom of the motor fixing bolt is in threaded connection with the connecting threaded hole on the corresponding side. The utility model has the advantages that: simple structure makes things convenient for centrifugal fan's air outlet to adjust, conveniently cooperates the not unidimensional fan motor, and application accommodation is wider.
Description
Technical Field
The utility model relates to a centrifugal fan's technical field, concretely relates to centrifugal fan of support regulation formula.
Background
The centrifugal fan is mainly used for transporting common air or gas in a specific environment (such as gas with oil smoke in a kitchen and gas with dust in a factory), and can be correspondingly matched with motors with different specifications to use according to the design of a wind wheel and the size of a shell of the centrifugal fan, namely a fan shell with the same size, and can be matched with motors with different rotating speeds and powers according to different use environments, and the bases of the motors are different due to different powers; the conventional centrifugal fan generally adopts a motor with fixed power, and cannot adapt to different motors.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a centrifugal fan of support regulation formula to the technical problem that present centrifugal fan's motor can't be changed.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a bracket-adjustable centrifugal fan comprises a volute unit and a fan bracket; the volute unit comprises a volute and a pair of square plate-shaped volute supporting plates which are distributed in the front-back direction; a centrifugal impeller is arranged in the volute; the centrifugal impeller is detachably connected with an output shaft of the fan motor; the volute is fixed between the pair of volute supporting plates; a center hole penetrating through the volute casing and the front and the back is formed in the center of the volute casing support plate; the central hole and the rotation central axis of the centrifugal impeller are collinear; the fan bracket is rotationally adjusted and arranged on the front end surface of the volute supporting plate on the front side by taking the rotating central shaft of the central hole as a central shaft; the fan bracket comprises a pair of left and right supporting square steel pipes which are distributed front and back; a pair of vertical supporting plates which are arranged in bilateral symmetry are fixed at the upper ends of the pair of supporting square steel tubes; a rectangular frame-shaped vertical moving frame is arranged between the pair of vertical supporting plates in a lifting way; a pair of L-shaped motor supporting seats are arranged on the upper end surface of the vertical moving frame in a left-right moving manner; a support leg pressing plate is vertically and movably arranged on the vertical part of the motor supporting seat; a long hole-shaped adjusting groove which penetrates through the supporting leg pressing plate up and down is formed on the supporting leg pressing plate; a plurality of connecting threaded holes are formed in the upper end surface of the horizontal part of the motor supporting seat; four L-shaped supporting legs which are distributed in a rectangular shape are formed at the bottom of the fan motor; the horizontal part of the supporting leg is arranged between the supporting leg pressing plate and the horizontal part of the motor supporting seat; the horizontal part of the supporting leg is formed with a connecting through hole; the motor fixing bolt vertically passes through the adjusting groove and the connecting through hole, and the bottom of the motor fixing bolt is in threaded connection with the connecting threaded hole on the corresponding side.
Preferably, an annular rotation support groove is formed on the front end surface of the volute casing support plate on the front side; arc-shaped moving guide rings matched with the rotating support grooves are formed on the rear end surfaces of the pair of vertical support plates; a plurality of bottom bolts which are uniformly distributed left and right are arranged on the supporting square steel pipe at the rear side in a penetrating way in the front-back direction; the four sides of the front end surface of the volute supporting plate on the front side are respectively formed with a plurality of bottom threaded holes matched with the bottom bolts.
According to the technical scheme, the left end and the right end of the upper end face of the supporting square steel pipe are respectively provided with the inclined reinforcing plates between the vertical supporting plates on the corresponding sides.
Preferably, a front connecting plate and a rear connecting plate are respectively formed between four corners of the end surface of the pair of volute casing supporting plates, which are close to each other.
Preferably, a left-right moving avoiding groove for a vertical moving frame to move left and right is formed on the bottom surface of the motor supporting seat; the upper ends of the front end surface and the rear end surface of the vertical moving frame are respectively formed with a rectangular groove-shaped left-right moving guide groove; left and right moving guide blocks matched with the left and right moving guide grooves are respectively formed on the side walls, close to each other, of the left and right moving avoidance grooves; the front end surface of the motor supporting seat penetrates through the front and the back of the motor supporting seat and is in threaded connection with a left limiting bolt and a right limiting bolt; the rear ends of the left and right limiting bolts abut against the rear side wall of the left and right moving guide groove on the front side.
Preferably, a vertical moving groove is formed on the vertical part of the motor supporting seat; a plurality of vertical guide rods are formed between the upper side wall and the lower side wall of the vertical moving groove; the supporting leg pressing plate is vertically movably arranged in the vertical moving groove and vertically sleeved on the vertical guide rod.
Preferably, a lower support plate is formed between the lower parts of the end surfaces of the pair of vertical support plates, which are close to each other; a plurality of vertical inserting rods are formed on the bottom surface of the vertical supporting plate; the vertical inserted bar vertically penetrates through the lower supporting plate; the center of the lower side wall of the vertical moving frame vertically penetrates through the lifting bolt and is pivoted with the lifting bolt; the lifting bolt vertically penetrates through and is in threaded connection with the lower supporting plate.
Preferably, a pair of guide connecting screws distributed in the front and back are respectively formed on the left end surface and the right end surface of the vertical moving frame; a pair of long-hole-shaped vertical movement avoiding grooves for the guide connecting screw rod to vertically slide are formed on the vertical supporting plate; the outer side end of the guide connecting screw rod is in threaded connection with an auxiliary nut; the auxiliary nut abuts against the vertical support plate of the corresponding side.
The beneficial effects of the utility model reside in that: simple structure makes things convenient for centrifugal fan's air outlet to adjust, conveniently cooperates the not unidimensional fan motor, and application accommodation is wider.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a structural schematic diagram of the blower bracket 20 according to the present invention;
fig. 3 is a schematic top view of the blower bracket 20 according to the present invention;
in the figure, 10, a volute unit; 11. a volute support plate; 110. a bottom threaded hole; 111. a central bore; 112. A rotation support groove; 12. front and rear connecting plates; 13. a volute; 20. a fan bracket; 21. supporting the square steel pipe; 22. a vertical support plate; 220. the avoidance groove moves vertically; 23. a reinforcing plate; 24. moving the guide ring; 25. A vertical moving rack; 250. the guide groove moves left and right; 251. a vertical insertion rod; 252. a lifting bolt; 253. a guide connecting screw rod; 254. an auxiliary nut; 26. a motor supporting seat; 260. a vertical moving groove; 261. a vertical guide rod; 262. a motor fixing bolt; 263. a left and a right limit bolts; 27. a support leg pressing plate; 270. an adjustment groove; 30. a fan motor; 31. support the feet.
Detailed Description
As shown in fig. 1 to 3, a centrifugal fan with adjustable bracket comprises a volute unit 10 and a fan bracket 20; the volute unit 10 comprises a volute 13 and a pair of square plate-shaped volute supporting plates 11 which are distributed in the front-back direction; a centrifugal impeller is arranged in the volute casing 13; the centrifugal impeller is detachably connected with an output shaft of the fan motor 30; the volute 13 is fixed between the pair of volute support plates 11; a central hole 111 which penetrates through the volute casing supporting plate 11 from front to back is formed in the center; the central hole 111 is collinear with the rotation central axes of the centrifugal impellers; the fan support 20 is rotatably adjusted and arranged on the front end surface of the volute casing support plate 11 on the front side by taking the rotation central axis of the central hole 111 as a central axis; the fan bracket 20 comprises a pair of left and right supporting square steel tubes 21 which are distributed in the front and back direction; a pair of vertical supporting plates 22 which are arranged in bilateral symmetry are fixed at the upper ends of the pair of supporting square steel tubes 21; a rectangular frame-shaped vertical moving frame 25 is arranged between the pair of vertical supporting plates 22 in a lifting manner; a pair of L-shaped motor supporting seats 26 are arranged on the upper end surface of the vertical moving frame 25 in a left-right moving manner; a support leg pressing plate 27 is vertically arranged on the vertical part of the motor supporting seat 26 in a moving mode; a long hole-shaped adjusting groove 270 which penetrates through the supporting leg pressing plate 27 from top to bottom is formed on the supporting leg pressing plate; a plurality of connecting threaded holes are formed on the upper end surface of the horizontal part of the motor supporting seat 26; four L-shaped supporting legs 31 which are distributed in a rectangular shape are formed at the bottom of the fan motor 30; the horizontal part of the supporting foot 31 is arranged between the leg pressing plate 27 and the horizontal part of the motor supporting seat 26; a connection through hole is formed on the horizontal part of the supporting leg 31; the motor fixing bolt 262 vertically passes through the adjustment groove 270 and the coupling penetration hole and is bottom-screwed in the coupling screw hole of the corresponding side.
As shown in fig. 1, a circular ring-shaped rotation support groove 112 is formed on the front end surface of the volute casing support plate 11 on the front side; the rear end surfaces of the pair of vertical support plates 22 are formed with arc-shaped moving guide rings 24 which are matched with the rotating support grooves 112; a plurality of bottom bolts 211 which are uniformly distributed left and right are arranged on the supporting square steel pipe 21 at the rear side in a penetrating way in the front-rear direction; four sides of the front end surface of the volute supporting plate 11 on the front side are respectively formed with a plurality of bottom threaded holes 110 matched with bottom bolts 211.
As shown in fig. 1 to 3, obliquely arranged reinforcing plates 23 are formed between the left and right ends of the upper end surface of the supporting square steel tube 21 and the corresponding vertical supporting plate 22.
As shown in fig. 1, front and rear connection plates 12 are respectively formed between four corners of end surfaces of a pair of volute case support plates 11 which are close to each other.
As shown in fig. 1 to 3, a left-right movement avoiding groove for the left-right movement of the vertical moving frame 25 is formed on the bottom surface of the motor supporting seat 26; the upper ends of the front and rear end surfaces of the vertical moving frame 25 are respectively formed with a rectangular groove-shaped left and right moving guide groove 250; left and right moving guide blocks matched with the left and right moving guide grooves 250 are respectively formed on the side walls, close to each other, of the left and right moving avoidance grooves; the front end surface of the motor supporting seat 26 passes through the front and the back and is screwed with a left limiting bolt 263 and a right limiting bolt 263; the rear end of the left and right limit bolts 263 abuts against the rear side wall of the left and right moving guide groove 250 on the front side.
As shown in fig. 2, a vertical moving groove 260 is formed on the vertical portion of the motor support base 26; a plurality of vertical guide rods 261 are formed between the upper and lower side walls of the vertical moving groove 260; the leg pressing plate 27 is vertically movably disposed in the vertical moving groove 260 and vertically fitted over the vertical guide bar 261.
As shown in fig. 1, a lower support plate 221 is formed between the lower portions of the end surfaces of the pair of vertical support plates 22 that are close to each other; a plurality of vertical insertion rods 251 are formed on the bottom surface of the vertical support plate 22; the vertical insertion rod 251 vertically passes through the lower support plate 221; the center of the lower side wall of the vertical moving frame 25 vertically passes through and is pivoted with a lifting bolt 252; the lifting bolt 252 vertically passes through and is screwed to the lower support plate 221.
As shown in fig. 1 to 3, a pair of guiding connection screws 253 distributed in the front and back are respectively formed on the left and right end surfaces of the vertical moving frame 25; a pair of long-hole-shaped vertical movement avoiding grooves 220 for the guide connecting screw 253 to slide vertically are formed on the vertical support plate 22; the outer end of the guide connecting screw 253 is screwed with an auxiliary nut 254; the auxiliary nuts 254 abut against the vertical support plate 22 of the respective side.
The bracket adjusting type centrifugal fan works according to the working principle;
when the direction of the air outlet needs to be adjusted, firstly, the centrifugal impeller is separated from the output shaft of the fan motor 30, then all the bottom bolts 211 are screwed out, then the volute unit 10 is rotated to adjust the air outlet, then the bottom bolts 211 are screwed into the bottom threaded holes 110 on the corresponding side, and then the centrifugal impeller is connected with the output shaft of the fan motor 30;
when the fan motors 30 with different sizes need to be replaced, all the motor fixing bolts 262 are firstly screwed out, and then the centrifugal impeller is separated from the output shaft of the fan motor 30, so that the old fan motor 30 can be taken down; then the auxiliary nut 254 is unscrewed, then the lifting bolt 252 is rotated according to the size of the blower motor 30 so that the vertical moving frame 25 is lifted to a proper position, then the positions of the pair of motor supporting seats 26 are adjusted according to the positions of the supporting feet 31, then the horizontal part of the supporting feet 31 of the blower motor 30 is inserted between the supporting foot pressing plate 27 and the horizontal part of the motor supporting seats 26, then the connecting centrifugal impeller is fixedly connected with the output shaft of the blower motor 30, and finally the motor fixing bolt 262 vertically passes through the adjusting groove 270 and the connecting through hole and the bottom is screwed in the connecting threaded hole of the corresponding side;
make things convenient for centrifugal fan's air outlet to adjust like this, conveniently cooperate not unidimensional fan motor, application accommodation is wider.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (8)
1. The utility model provides a centrifugal fan of support regulation formula which characterized in that: comprises a volute unit (10) and a fan bracket (20); the volute unit (10) comprises a volute (13) and a pair of square plate-shaped volute supporting plates (11) which are distributed in the front-back direction; a centrifugal impeller is arranged in the volute (13); the centrifugal impeller is detachably connected with an output shaft of a fan motor (30); the volute (13) is fixed between the pair of volute supporting plates (11); a center hole (111) which penetrates through the volute casing supporting plate (11) from front to back is formed in the center of the volute casing supporting plate; the central hole (111) and the rotation central axes of the centrifugal impellers are collinear; the fan bracket (20) is rotationally adjusted and arranged on the front end surface of the volute casing supporting plate (11) at the front side by taking the rotating central shaft of the central hole (111) as a central shaft; the fan bracket (20) comprises a pair of left and right supporting square steel pipes (21) which are distributed in the front and back direction; a pair of vertical supporting plates (22) which are arranged in a bilateral symmetry mode are fixed at the upper ends of the pair of supporting square steel pipes (21); a rectangular frame-shaped vertical moving frame (25) is arranged between the pair of vertical supporting plates (22) in a lifting way; a pair of L-shaped motor supporting seats (26) are arranged on the upper end surface of the vertical moving frame (25) in a left-right moving manner; a support leg pressing plate (27) is vertically arranged on the vertical part of the motor supporting seat (26) in a moving way; a long-hole-shaped adjusting groove (270) which penetrates through the supporting leg pressing plate (27) up and down is formed in the supporting leg pressing plate; a plurality of connecting threaded holes are formed on the upper end surface of the horizontal part of the motor supporting seat (26); four L-shaped supporting legs (31) which are distributed in a rectangular shape are formed at the bottom of the fan motor (30); the horizontal part of the supporting foot (31) is arranged between the supporting foot pressing plate (27) and the horizontal part of the motor supporting seat (26); a connecting through hole is formed on the horizontal part of the supporting leg (31); the motor fixing bolt (262) vertically passes through the adjusting groove (270) and the connecting through hole and the bottom is screwed in the connecting threaded hole of the corresponding side.
2. The rack-regulated centrifugal fan of claim 1, wherein: an annular rotary supporting groove (112) is formed on the front end surface of the volute supporting plate (11) on the front side; arc-shaped moving guide rings (24) matched with the rotating support grooves (112) are formed on the rear end surfaces of the pair of vertical support plates (22); a plurality of bottom bolts (211) which are uniformly distributed from left to right are arranged on the supporting square steel pipe (21) at the rear side in a penetrating way in the front-back direction; four sides of the front end surface of the volute supporting plate (11) on the front side are respectively provided with a plurality of bottom threaded holes (110) matched with the bottom bolts (211).
3. The rack-regulated centrifugal fan of claim 1, wherein: and reinforcing plates (23) which are obliquely arranged are formed between the left end and the right end of the upper end face of the supporting square steel pipe (21) and the vertical supporting plates (22) on the corresponding sides respectively.
4. The rack-regulated centrifugal fan of claim 1, wherein: front and rear connecting plates (12) are respectively formed between four corners of the end surfaces of the pair of volute casing supporting plates (11) which are close to each other.
5. The rack-regulated centrifugal fan of claim 1, wherein: a left-right moving avoiding groove for the vertical moving frame (25) to move left and right is formed on the bottom surface of the motor supporting seat (26); the upper ends of the front end surface and the rear end surface of the vertical moving frame (25) are respectively formed with a rectangular groove-shaped left-right moving guide groove (250); left and right moving guide blocks matched with the left and right moving guide grooves (250) are respectively formed on the side walls, close to each other, of the left and right moving avoidance grooves; the front end surface of the motor supporting seat (26) penetrates through the front and the back and is in threaded connection with a left limiting bolt (263) and a right limiting bolt (263); the rear ends of the left and right limiting bolts (263) abut against the rear side wall of the left and right moving guide groove (250) on the front side.
6. The rack-regulated centrifugal fan of claim 1, wherein: a vertical moving groove (260) is formed on the vertical part of the motor supporting seat (26); a plurality of vertical guide rods (261) are formed between the upper side wall and the lower side wall of the vertical moving groove (260); the supporting foot pressing plate (27) is vertically movably arranged in the vertical moving groove (260) and vertically sleeved on the vertical guide rod (261).
7. The rack-regulated centrifugal fan of claim 1, wherein: a lower support plate (221) is formed between the lower parts of the end surfaces of the pair of vertical support plates (22) which are close to each other; a plurality of vertical inserting rods (251) are formed on the bottom surface of the vertical supporting plate (22); the vertical insertion rod (251) vertically penetrates through the lower support plate (221); the center of the lower side wall of the vertical moving frame (25) vertically penetrates through and is pivoted with a lifting bolt (252); the lifting bolt (252) vertically passes through and is screwed on the lower support plate (221).
8. The rack-regulated centrifugal fan of claim 7, wherein: a pair of guide connecting screw rods (253) distributed front and back are respectively formed on the left end surface and the right end surface of the vertical moving frame (25); a pair of long-hole-shaped vertical movement avoiding grooves (220) for the guide connecting screw rods (253) to slide vertically are formed on the vertical supporting plate (22); the outer end of the guide connecting screw rod (253) is screwed with an auxiliary nut (254); the auxiliary nut (254) abuts against the vertical support plate (22) of the corresponding side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023001223.XU CN214273989U (en) | 2020-12-14 | 2020-12-14 | Centrifugal fan of support regulation formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023001223.XU CN214273989U (en) | 2020-12-14 | 2020-12-14 | Centrifugal fan of support regulation formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214273989U true CN214273989U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023001223.XU Active CN214273989U (en) | 2020-12-14 | 2020-12-14 | Centrifugal fan of support regulation formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214273989U (en) |
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2020
- 2020-12-14 CN CN202023001223.XU patent/CN214273989U/en active Active
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