CN212337671U - Cabinet type high-efficiency centrifugal fan - Google Patents
Cabinet type high-efficiency centrifugal fan Download PDFInfo
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- CN212337671U CN212337671U CN201921971010.4U CN201921971010U CN212337671U CN 212337671 U CN212337671 U CN 212337671U CN 201921971010 U CN201921971010 U CN 201921971010U CN 212337671 U CN212337671 U CN 212337671U
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- wheel disc
- box body
- centrifugal fan
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Abstract
The utility model belongs to the technical field of purification fans, and particularly discloses a cabinet type high-efficiency centrifugal fan, which comprises a base fastened on an infrastructure; a box body arranged on the base; the impeller set is rotatably connected in the box body; the main transmission component is arranged on the box body and is used for driving the impeller set to rotate; the two ends of the impeller set are provided with auxiliary transmission components which are rotationally connected with the box body through a connecting mechanism, and the main transmission component is in transmission connection with the auxiliary transmission components through a belt, so that the structure is optimized, and the advantages of buffering and vibration absorption during the operation of the belt are utilized, so that the transmission is stable, and the noise is reduced; in addition, two ends of a plurality of blades in the impeller set are respectively provided with at least two bulges, the two bulges form barb sections through a pressure riveting process to be fixedly connected with the front wheel disc and the rear wheel disc in the impeller set, riveting by using rivets is not needed, material waste is reduced, and manufacturing cost is reduced.
Description
Technical Field
The utility model relates to a purification fan technical field, concretely relates to cabinet type high-efficient centrifugal fan.
Background
Along with the increasing requirements of society on environment, various purification and filtration devices are additionally arranged in engineering application pipe networks so as to increase the system resistance. And the fan is used as filtering equipment for air purification, and has higher pressure requirement. The centrifugal fan is designed under the condition of ensuring the wind efficiency, the coefficient of lower pressure is adopted in the design, and in order to meet the required requirements, higher static pressure can be obtained only by increasing the input power of a motor and improving the specific rotating speed, and the flow of the fan is smaller, so that the abrasion of a fan bearing is larger, a blade is easy to break, and the noise of the fan is high.
Therefore, it is necessary to provide a technical means to solve the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a cabinet type high-efficient centrifugal fan to solve the higher static pressure district of fan among the prior art, the fan flow is less, causes fan bearing wear and tear can be big more, and the blade breaks easily, and the big scheduling problem of fan noise.
A cabinet high efficiency centrifugal fan comprising:
a base secured to an infrastructure;
the box body is arranged on the base, and a volute is arranged in the box body;
the impeller set is rotationally connected in the volute of the box body;
the main transmission component is arranged on the box body and is used for driving the impeller set to rotate;
the method is characterized in that:
the box body comprises a frame; the left end of the frame is provided with a left panel; the right end of the frame is provided with a right panel, the front end of the frame is provided with a front panel, the rear end of the frame is provided with a rear panel, and the top of the frame is provided with an upper panel; an air outlet is formed in the left panel; the right panel is provided with an air inlet;
an auxiliary transmission component is arranged in the impeller assembly, two ends of the auxiliary transmission component are rotatably connected with the box body through a connecting mechanism, and the input end of the auxiliary transmission component is rotatably connected with the output end of the main transmission component through a belt;
wherein:
the impeller set comprises a front wheel disc, a rear wheel disc and a plurality of blades positioned between the front wheel disc and the rear wheel disc, and a plurality of slots are uniformly distributed on the circumferences of the front wheel disc and the rear wheel disc; the blades are strongly bent and inclined forward, at least two bulges are arranged at the upper end and the lower end of any one of the blades respectively, the two bulges penetrate through the slots corresponding to the two bulges respectively, barb sections matched with the slots are further arranged on the top ends of the bulges in an extending mode, the upper ends of the blades are fixedly connected with the front wheel disc through the barb sections, and the lower ends of the blades are fixedly connected with the rear wheel disc.
As to the further explanation of the cabinet type high-efficiency centrifugal fan of the present invention, preferably, the two symmetric axes of the upper end of the blade and the two symmetric axes of the lower end of the blade between the two protrusions are all coincided with the symmetric axes of the blade.
As right the utility model discloses a further explanation of cabinet type high-efficient centrifugal fan, preferably, a plurality of blades equidistance distributes between preceding rim plate and back rim plate.
As a further description of the cabinet type high-efficiency centrifugal fan of the present invention, preferably, the impeller sets are provided with two sets, and the two sets of impeller sets are arranged on the auxiliary transmission member side by side.
As a further description of the cabinet type high-efficiency centrifugal fan of the present invention, preferably, the connecting mechanism includes a vertical connecting rod and a horizontal connecting rod; one end of the vertical connecting rod is vertically connected to one side, close to the front panel, in the box body; the transverse connecting rod is parallel to the front panel and is fixedly connected to the other end of the vertical connecting rod.
As right the utility model discloses a further explanation of cabinet type high-efficient centrifugal fan, preferably, the final drive component is driving motor, driving motor fixed connection be in on the top panel, be equipped with the final drive gyro wheel on its output shaft.
As a further description of the cabinet type high-efficiency centrifugal fan of the present invention, preferably, the auxiliary transmission member includes a rotating shaft, an auxiliary transmission roller, and a connecting seat, and the connecting seat is screwed on the transverse connecting rod through a bolt; one end of the rotating shaft is fixedly connected with the two groups of impeller sets, and the other end of the rotating shaft is rotatably connected to the connecting seat and extends through the front panel along the horizontal direction to extend out of the box body; the auxiliary transmission roller is fixedly connected to one end, located outside the box body, of the rotating shaft, the belt is sleeved on the main transmission roller and the auxiliary transmission roller, and the main transmission roller drives the auxiliary transmission roller to rotate through the belt so as to drive the impeller set to rotate.
As right the further explanation of a cabinet type high-efficient centrifugal fan, preferably, preceding rim plate with be equipped with between the back rim plate in addition and be used for rectifying the blade correction structure of a plurality of blade values of beating. The blade correction structure is provided with three groups, the three groups of blade correction structures are distributed in an equilateral triangle shape, one ends of the three groups of blade correction structures are fixedly connected with the front wheel disc, and the other ends of the three groups of blade correction structures are fixedly connected with the rear wheel disc.
As a further description of the cabinet type high-efficiency centrifugal fan of the present invention, preferably, the blade correcting structure includes a forward screw rod, a reverse screw rod and a connecting nut, one end of an inner wall of the connecting nut is provided with a left thread rotating leftward, and the other end is provided with a right thread rotating rightward; the positive lead screw is in threaded connection with one end of the connecting nut through the left thread; the reverse screw rod is in threaded connection with the other end of the connecting nut through the right thread; the connecting nut rotates in one direction to drive the forward screw rod and the reverse screw rod to be separated towards two ends or to be close to each other.
As right the further explanation of a cabinet type high-efficient centrifugal fan, preferably, forward lead screw with equal thread bush is equipped with lock nut on the reverse lead screw, the coupling nut both ends all by lock nut presss from both sides tightly.
1. The utility model discloses a combination formula optimal design mode, with the part standardization, fan blade adopts the strong curved blade that leans forward, the blade is through colluding riveting technology method and preceding rim plate and back rim plate fixed connection, the slot on the slot of preceding rim plate and back rim plate is passed to the arch at blade both ends, and extend a barb section towards the horizontal direction on bellied top, both can guarantee the fastness of being connected between blade and preceding rim plate and the back rim plate, can avoid welding and secondary operation process to produce smoke and dust pollution again, also need not to adopt the rivet riveting, it is extravagant to reduce the material, and the manufacturing cost is reduced, and is convenient and practical, and the promotion value is possessed.
2. Preceding rim plate and back rim plate between be equipped with three blade correction structures of group, utilize the lead screw in three blade correction structures of group with preceding rim plate and back rim plate tensioning, prevent that radial runout and form and position tolerance appear easily in the front before rim plate and back rim plate when high-speed rotatory blade between rim plate and the back rim plate sways unstable condition.
3. The main transmission component and the auxiliary transmission component are connected through belt transmission, so that the structure is optimized, the manufacturing cost is low, the structure is simple, and the advantages of buffering and vibration absorption during the operation of the belt are utilized, so that the transmission is stable, and the noise is reduced; in the operation process, the rotating speed of the impeller set is large for obtaining high static pressure, the belt can slip on the main transmission roller and the auxiliary transmission roller, weak parts can be prevented from being damaged, and the safety protection effect is achieved.
Drawings
Fig. 1 is a schematic view of an overall structure of a cabinet type high-efficiency centrifugal fan according to an embodiment of the present invention.
Fig. 2 is a schematic side view of a cabinet type high-efficiency centrifugal fan after a front panel, a monkey-shaped bread, a left panel, a right panel and an upper panel are removed.
FIG. 3 is a schematic view of the structure of the connection of two sets of impeller assemblies in a cabinet-type high-efficiency centrifugal fan according to the embodiment of the present invention
Fig. 4 is a schematic structural view of a correction structure in a cabinet type high-efficiency centrifugal fan in the impeller set according to an embodiment of the present invention.
Fig. 5 is a schematic view of the integral connection between the vane and the front wheel disc of the cabinet type high-efficiency centrifugal fan according to the embodiment of the present invention.
Fig. 6 is a schematic structural view of a connecting mechanism in a cabinet type high-efficiency centrifugal fan according to an embodiment of the present invention.
Reference numerals
1-base, 2-box, 3-frame, 21-front panel, 22-rear panel, 23-left panel, 24-right panel, 25-upper panel, 4-auxiliary transmission component, 41-rotating shaft, 42-auxiliary transmission roller, 5-main transmission component, 51-driving motor, 52-main transmission roller, 6-belt, 7-impeller group, 71-rear wheel disc, 72-front wheel disc, 73-blade, 8-volute, 9-connecting mechanism, 91-transverse connecting rod, 92-vertical connecting rod, 101-reverse screw rod, 102-forward screw rod, 103-connecting nut, 112-bulge, 113-barb section, 200-air outlet and 300-air inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "fixedly attached" to another element, it can be fixedly attached by welding, bolting, gluing, or the like.
Referring to fig. 1-5, in order to provide an embodiment of the present invention, a high-efficiency centrifugal fan in the embodiment is used for purifying air, and the high-efficiency centrifugal fan in the embodiment includes a base 1, a box 2, an impeller set 7, and a main transmission member 5; the following further describes the components of a high efficiency centrifugal fan:
in the embodiment of the present invention:
the base 1 is fastened on the infrastructure;
the box body 2 is arranged on the base 1, and a volute 8 is arranged in the box body;
the impeller set 7 is rotationally connected in a volute 8 of the box body 2;
the main transmission component 5 is arranged on the box body 2 and is used for driving the impeller set 7 to rotate;
wherein:
the box body 2 comprises a frame 3, a left panel 23, a right panel 24, a front panel 21, a rear panel 22 and an upper panel 25; the left panel 23 is arranged at the left end of the frame 3; the right end of the frame 3 is provided with the right panel 24, the front end of the frame 3 is provided with the front panel 21, the rear end of the frame 3 is provided with the rear panel 22, and the top of the frame 3 is provided with the upper panel 25; the left panel 23 is provided with 200 air outlets; the right panel 24 is provided with an air inlet 300;
an auxiliary transmission component 4 is arranged in the impeller set 7, the auxiliary transmission component 4 is rotatably connected with the box body 2 through a connecting mechanism 9, two ends of the auxiliary transmission component 4 are rotatably connected with the box body 2 through a connecting mechanism 9, and the input end of the auxiliary transmission component 4 is rotatably connected with the output end of the main transmission component 5 through a belt 6.
Referring to fig. 1, as shown in fig. 1, the impeller assembly 7 includes a front wheel disc 72, a rear wheel disc 71, and a plurality of blades located between the front wheel disc 72 and the rear wheel disc 71, and a plurality of slots are uniformly distributed on the circumferences of the front wheel disc 72 and the rear wheel disc 71; the blades are strongly bent and inclined forward, at least two protrusions 112 are arranged at the upper end and the lower end of any one of the blades respectively, the two protrusions 112 penetrate through the corresponding slots respectively, the top ends of the protrusions 112 are further provided with barb sections 113 matched with the slots in an extending mode, the upper ends of the blades are fixedly connected with the front wheel disc 72 through the barb sections 113, and the lower ends of the blades are fixedly connected with the rear wheel disc 71.
Further, in order to improve the structural rationality of the centrifugal fan, the symmetrical axes of the two protrusions 112 at the upper end and the two protrusions 112 at the lower end of each blade coincide with the symmetrical axes of the blades, and the two adjacent blades are parallel to each other, so that the smooth inflow of air flow can be realized.
Further, in order to improve the structural reasonableness of the centrifugal fan, a plurality of blades are distributed between the front wheel disc 72 and the rear wheel disc 71 at equal intervals.
Furthermore, two groups of impeller sets 7 are arranged, the two groups of impeller sets 7 are arranged on the auxiliary transmission component 4 in parallel, and the two groups of impeller sets are connected through a shaft disc.
In addition, in order to reduce the loss of the fan bearing and cause the blade 73 to be easily broken, the connecting mechanism 9 of the present application comprises a vertical connecting rod 92 and a transverse connecting rod 91; one end of the vertical connecting rod 92 is vertically connected to one side close to the front panel 21 in the box body 2; the transverse link 91 is fixedly connected to the other end of the vertical link 92 in parallel with the front panel 21. The vertical connecting rod 92 and the transverse connecting rod 91 are connected into a T shape, so that the auxiliary transmission component 4 is supported and supported, and the stability of the two impeller sets 7 is improved.
As an embodiment of the present invention, as shown in fig. 1, the main transmission member 5 is a driving motor 51, the driving motor 51 is fixedly connected to the upper panel 25, and a main transmission roller 52 is disposed on an output shaft thereof. The main transmission roller 52 of the driving motor 51 is in transmission connection with the secondary transmission member 4 through the belt 6, and in detail:
the auxiliary transmission member 4 comprises a rotating shaft 41, an auxiliary transmission roller 42 and a connecting seat, and the connecting seat is screwed on the transverse connecting rod 91 through a bolt; one end of the rotating shaft 41 is fixedly connected with the two groups of impeller sets 7, and the other end is rotatably connected to the connecting seat and extends through the front panel 21 along the horizontal direction to extend out of the box body 2; the auxiliary transmission roller 42 is fixedly connected to one end of the rotating shaft 41, which is located outside the box body 2, the belt 6 is sleeved on the main transmission roller 52 and the auxiliary transmission roller 42, and the main transmission roller 52 drives the auxiliary transmission roller 42 to rotate through the belt 6 so as to drive the impeller set 7 to rotate. The main transmission component 5 and the auxiliary transmission component 4 are in transmission connection through the belt 6, so that the structure is optimized, the manufacturing cost is low, the structure is simple, and the advantages of buffering and vibration absorption when the belt 6 works are utilized, so that the transmission is stable, and the noise is reduced; in order to obtain higher static pressure in the operation process, the rotating speed of the impeller set 7 is higher, and the belt 6 can slip on the main transmission roller 52 and the auxiliary transmission roller 42, so that the damage of weak parts can be prevented, and the safety protection effect is realized.
Further, a blade 73 correcting structure for correcting a plurality of blade runout values is arranged between the front wheel disc 72 and the rear wheel disc 71. The blade 73 corrects the structure and is equipped with three groups, and three groups of blade 73 correct the structure and be the equilateral triangle distribution, and its one end is fixed connection with preceding rim plate 72 respectively, and the other end is fixed connection with back rim plate 71.
Further, the blade 73 correcting structure comprises a forward screw rod 102, a reverse screw rod 101 and a connecting nut 103, wherein one end of the inner wall of the connecting nut 103 is provided with a left thread rotating leftwards, and the other end of the inner wall of the connecting nut 103 is provided with a right thread rotating rightwards; the positive lead screw 102 is in threaded connection with one end of a connecting nut 103 through a left thread; the reverse screw rod 101 is in threaded connection with the other end of the connecting nut 103 through a right thread; the connecting nut 103 rotates in one direction to drive the forward lead screw 102 and the reverse lead screw 101 to move towards the two ends or move towards each other. In this embodiment, when coupling nut 103 clockwise turning, forward lead screw 102 and reverse lead screw 101 draw close each other, play the taut effect with preceding rim plate 72 and back rim plate 71, when coupling nut 103 anticlockwise turning, forward lead screw 102 and reverse lead screw 101 are separated to two, play the effect with preceding rim plate 72 and back rim plate 71 tensioning, the regulation of forward lead screw 102 and reverse lead screw 101 is realized to this accessible coupling nut 103, prevent that radial runout from appearing easily in the high-speed rotatory time of preceding rim plate 72 and back rim plate 71, and the form and position tolerance leads to the unstable condition of the blade gourd ladle pendulum between preceding rim plate 72 and the back rim plate 71.
Further, the forward screw rod 102 and the reverse screw rod 101 are both threaded with locking nuts, and both ends of the connecting nut 103 are both clamped by the locking nuts. Accordingly, the connecting nut 103 can be locked to prevent the connecting nut 103 from loosening and affecting the operation of the impeller assembly 7
As shown in fig. 5, in the present application, the blade 73 is fixedly connected to the front wheel disc 72 and the rear wheel disc 71 through a hook-riveting process, after the protrusions 112 at both ends of the blade pass through the slots on the front wheel disc 72 and the rear wheel disc 71, the top end of the protrusion 112 is bent to form a barb section 113 through a pressure-riveting process, so that the upper end and the lower end of the blade 73 can be respectively and fixedly connected to the rear wheel disc 71 and the front wheel disc 72, the firmness of connection between the blade and the front wheel disc 72 and the rear wheel disc 71 can be ensured, the welding and secondary processing processes can be prevented from generating smoke pollution, rivet-riveting is not needed, the material waste is reduced, the manufacturing cost is reduced, and the blade is convenient and practical and has popularization value.
The above is merely a preferred embodiment of the present invention, and the structure is not limited to the above-mentioned shapes, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A cabinet high efficiency centrifugal fan comprising:
a base secured to an infrastructure;
the box body is arranged on the base, and a volute is arranged in the box body;
the impeller set is rotationally connected in the volute of the box body;
the main transmission component is arranged on the box body and is used for driving the impeller set to rotate;
the method is characterized in that:
the box body comprises a frame; the left end of the frame is provided with a left panel; the right end of the frame is provided with a right panel, the front end of the frame is provided with a front panel, the rear end of the frame is provided with a rear panel, and the top of the frame is provided with an upper panel; an air outlet is formed in the left panel; the right panel is provided with an air inlet;
an auxiliary transmission component is arranged in the impeller assembly, two ends of the auxiliary transmission component are rotatably connected with the box body through a connecting mechanism, and the input end of the auxiliary transmission component is rotatably connected with the output end of the main transmission component through a belt;
wherein:
the impeller set comprises a front wheel disc, a rear wheel disc and a plurality of blades positioned between the front wheel disc and the rear wheel disc, and a plurality of slots are uniformly distributed on the circumferences of the front wheel disc and the rear wheel disc; the blades are strongly bent and inclined forward, at least two bulges are arranged at the upper end and the lower end of any one of the blades respectively, the two bulges penetrate through the slots corresponding to the two bulges respectively, barb sections matched with the slots are further arranged on the top ends of the bulges in an extending mode, the upper ends of the blades are fixedly connected with the front wheel disc through the barb sections, and the lower ends of the blades are fixedly connected with the rear wheel disc.
2. The cabinet type high-efficiency centrifugal fan according to claim 1, wherein: the symmetrical axes of the two bulges at the upper end of the blade and the symmetrical axes between the two bulges at the lower end of the blade are coincided with the symmetrical axes of the blade.
3. The cabinet type high-efficiency centrifugal fan according to claim 2, wherein: the blades are distributed between the front wheel disc and the rear wheel disc at equal intervals.
4. The cabinet type high-efficiency centrifugal fan according to claim 1, wherein: the impeller sets are provided with two groups, and the two groups of impeller sets are arranged on the auxiliary transmission component in parallel.
5. The cabinet type high-efficiency centrifugal fan according to claim 1, wherein: the connecting mechanism comprises a vertical connecting rod and a transverse connecting rod; one end of the vertical connecting rod is vertically connected to one side, close to the front panel, in the box body; the transverse connecting rod is parallel to the front panel and is fixedly connected to the other end of the vertical connecting rod.
6. The cabinet type high-efficiency centrifugal fan according to claim 5, wherein: the main transmission component is a driving motor which is fixedly connected to the upper panel, and an output shaft of the driving motor is provided with a main transmission roller.
7. The cabinet type high-efficiency centrifugal fan according to claim 6, wherein: the auxiliary transmission component comprises a rotating shaft, an auxiliary transmission roller and a connecting seat, and the connecting seat is screwed on the transverse connecting rod through a bolt; one end of the rotating shaft is fixedly connected with the two groups of impeller sets, and the other end of the rotating shaft is rotatably connected to the connecting seat and extends through the front panel along the horizontal direction to extend out of the box body; the auxiliary transmission roller is fixedly connected to one end, located outside the box body, of the rotating shaft, the belt is sleeved on the main transmission roller and the auxiliary transmission roller, and the main transmission roller drives the auxiliary transmission roller to rotate through the belt so as to drive the impeller set to rotate.
8. The cabinet type high-efficiency centrifugal fan according to any one of claims 1 to 4, wherein: a blade correcting structure for correcting the beating values of the blades is arranged between the front wheel disc and the rear wheel disc; the blade correction structure is provided with three groups, the three groups of blade correction structures are distributed in an equilateral triangle shape, one ends of the three groups of blade correction structures are fixedly connected with the front wheel disc, and the other ends of the three groups of blade correction structures are fixedly connected with the rear wheel disc.
9. The cabinet type high-efficiency centrifugal fan according to claim 8, wherein: the blade correcting structure comprises a forward screw rod, a reverse screw rod and a connecting nut, wherein one end of the inner wall of the connecting nut is provided with a left thread rotating leftwards, and the other end of the inner wall of the connecting nut is provided with a right thread rotating rightwards; the positive lead screw is in threaded connection with one end of the connecting nut through the left thread; the reverse screw rod is in threaded connection with the other end of the connecting nut through the right thread; the connecting nut rotates in one direction to drive the forward screw rod and the reverse screw rod to be separated towards two ends or to be close to each other.
10. The cabinet type high-efficiency centrifugal fan according to claim 9, wherein: the positive screw rod and the reverse screw rod are respectively provided with a locking nut in a threaded sleeve mode, and two ends of the connecting nut are clamped tightly by the locking nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921971010.4U CN212337671U (en) | 2019-11-15 | 2019-11-15 | Cabinet type high-efficiency centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921971010.4U CN212337671U (en) | 2019-11-15 | 2019-11-15 | Cabinet type high-efficiency centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212337671U true CN212337671U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921971010.4U Active CN212337671U (en) | 2019-11-15 | 2019-11-15 | Cabinet type high-efficiency centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212337671U (en) |
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2019
- 2019-11-15 CN CN201921971010.4U patent/CN212337671U/en active Active
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Denomination of utility model: A cabinet type high-efficiency centrifugal fan Effective date of registration: 20220809 Granted publication date: 20210112 Pledgee: Bank of China Limited by Share Ltd. Yunfu branch Pledgor: Guangdong Hengli ventilator Co.,Ltd. Registration number: Y2022980012181 |