CN209925241U - Belt pulley for centrifugal blower - Google Patents
Belt pulley for centrifugal blower Download PDFInfo
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- CN209925241U CN209925241U CN201920513917.XU CN201920513917U CN209925241U CN 209925241 U CN209925241 U CN 209925241U CN 201920513917 U CN201920513917 U CN 201920513917U CN 209925241 U CN209925241 U CN 209925241U
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- pulley
- mounting hole
- belt pulley
- centrifugal blower
- rotating shaft
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Abstract
The utility model provides a belt pulley for a centrifugal blower, which is applied to the centrifugal blower, the centrifugal blower comprises a shell and a rotating shaft, one end of the rotating shaft is arranged outside the shell, the belt pulley is arranged outside the shell and sleeved on the rotating shaft, the belt pulley is provided with a bolt groove, the rotating shaft is provided with a bolt structure, and the bolt structure is embedded into the bolt groove; be equipped with first mounting hole in the axis of rotation, be equipped with the second mounting hole on the belt pulley, after the bolt structure imbeds the bolt recess completely, the central line of first mounting hole and the coincidence of the central line of second mounting hole. The stopper of combination formula is extremely convenient when changing the hold-in range simultaneously, only needs to dismantle the second stopper and can provide the hold-in range mounted position. The transmission of belt pulley and rotating shaft power is carried out to the bolt structure, and it is more nimble to dismantle. Adopt two mounting holes to carry out the second grade and fix, guarantee that belt pulley axial motion can not take place when the pivoted, further improve fixed effect.
Description
Technical Field
The utility model relates to a centrifugal blower field especially relates to a belt pulley for centrifugal blower.
Background
The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.
Traditional centrifugal blower has multiple working methods according to the connected mode with the motor, and the centrifugal blower who adopts the mode that belt pulley and hold-in range are connected wherein just enables the impeller and obtains the effect that is higher than motor speed, and is expensive based on high rotational speed motor, and the maintenance cost is also high, consequently adopts ordinary low-speed motor to connect hold-in range and hold-in range to drive the centrifugal blower of impeller and uses extensively, but the blast effect of formation is not good, and the wind speed is lower, is difficult to satisfy the user demand. Meanwhile, in the use process of the common belt pulley, the synchronous belt is broken or falls off due to reasons such as motor acceleration, motor vibration and the like, and meanwhile, the synchronous belt needs to be tensioned by adjusting the distance between the motor and the rotating shaft after being installed, so that the synchronous belt is very troublesome to install again. Therefore, the installation and fixation of the timing belt is a big reason for preventing the centrifugal blower from forming high-speed air flow.
Meanwhile, in the use process of the common belt pulley, the synchronous belt is broken or falls off due to reasons such as motor acceleration, motor vibration and the like, and meanwhile, the synchronous belt needs to be tensioned by adjusting the distance between the motor and the rotating shaft after being installed, so that the synchronous belt is very troublesome to install again. Therefore, the installation and fixation of the timing belt is a big reason for preventing the centrifugal blower from forming high-speed air flow.
In view of the above, a pulley for a centrifugal blower has been proposed to solve the above problems.
Disclosure of Invention
An object of the utility model is to provide a belt pulley for centrifugal blower is arranged in centrifugal blower through designing a modular, the fixed belt pulley of two-stage to the realization makes things convenient for the dismouting to the effective fixed of hold-in range, realizes the high-speed operation at centrifugal blower.
The utility model discloses a technique be:
the belt pulley for the centrifugal blower is applied to the centrifugal blower, the centrifugal blower comprises a shell and a rotating shaft, one end of the rotating shaft is arranged outside the shell and comprises a belt pulley, the belt pulley is arranged outside the shell and sleeved on the rotating shaft, the belt pulley is provided with a bolt groove, the rotating shaft is provided with a bolt structure, and the bolt structure is embedded into the bolt groove; be equipped with first mounting hole in the axis of rotation, be equipped with the second mounting hole on the belt pulley, after the bolt structure imbeds the bolt recess completely, the central line of first mounting hole and the coincidence of the central line of second mounting hole. The stopper of combination formula is extremely convenient when changing the hold-in range simultaneously, only needs to dismantle the second stopper and can provide the hold-in range mounted position. The transmission of belt pulley and rotating shaft power is carried out to the bolt structure, and it is more nimble to dismantle. Adopt two mounting holes to carry out the second grade and fix, guarantee that belt pulley axial motion can not take place when the pivoted, further improve fixed effect.
As the further optimization of scheme, the belt pulley includes first belt pulley piece and second belt pulley piece, and first belt pulley piece is equipped with first stopper, and second belt pulley piece is equipped with the second stopper, and when the hold-in range was installed on the belt pulley, first stopper and second stopper were located the both sides of hold-in range respectively. The synchronous belt is fixed by two combined limiting blocks on the belt pulley, when the synchronous belt drives the belt pulley to rotate, the synchronous belt limits axial movement on the belt pulley, and cannot fall off, so that the use requirement of the high-speed centrifugal blower is met.
According to the scheme, the first belt pulley block is provided with a third mounting hole, the second belt pulley block is provided with a fourth mounting hole, when the second belt pulley block is sleeved on the first belt pulley block, the central line of the third mounting hole coincides with the central line of the fourth mounting hole, and the third mounting hole and the fourth mounting hole form a second mounting hole. The two combined belt pulley blocks are used for fixing the whole belt pulley by utilizing the third mounting hole and the fourth mounting hole, and the first belt pulley block and the second belt pulley block are relatively fixed on the other hand.
As further optimization of the scheme, the belt pulley is provided with a plurality of trapezoidal tooth sockets which are uniformly distributed, and four corners of each tooth socket are provided with transition fillets; the tooth form angle of the tooth socket is 45-60 degrees, and the radius of the transition fillet is 20-30 percent of the depth of the tooth socket. The belt pulley with the transition fillet protects the synchronous belt, the synchronous belt cannot be damaged in the rotating process, and a foundation is provided for high-speed operation of the air blower. The belt pulley with the transition fillet protects the synchronous belt, the synchronous belt cannot be damaged in the rotating process, and a foundation is provided for high-speed operation of the air blower. When the synchronous belt rotates, the reasonable tooth socket shape ensures that the synchronous belt is stressed uniformly, and has stable use and long service life.
As a further optimization of the scheme, the tooth grooves are formed in the first belt pulley block. The tooth's socket sets up on first belt pulley piece, when changing and installing the hold-in range, only need demolish the second belt pulley piece can.
As a further optimization of the scheme, the central line of the first mounting hole and the central line of the bolt structure are perpendicularly designed on the rotating shaft.
As a further refinement of the solution, the first mounting hole is located outside the plug construction. Prevent two-stage fixed knot structure mutual interference, improve the installation convenience.
Compared with the prior art, the beneficial effects of the utility model are that:
through the scheme, the synchronous belt is fixed by the two combined limiting blocks on the belt pulley, when the synchronous belt drives the belt pulley to rotate, the synchronous belt limits axial movement on the belt pulley, falling cannot occur, and the use requirement of the high-speed centrifugal blower is met. The stopper of combination formula is extremely convenient when changing the hold-in range simultaneously, only needs to dismantle the second stopper and can provide the hold-in range mounted position. The transmission of belt pulley and rotating shaft power is carried out to the bolt structure, and it is more nimble to dismantle.
The two combined belt pulley blocks are used for fixing the whole belt pulley by utilizing the third mounting hole and the fourth mounting hole, and the first belt pulley block and the second belt pulley block are relatively fixed on the other hand. The transmission of belt pulley and rotating shaft power is carried out to the bolt structure, and it is more nimble to dismantle.
The belt pulley with the transition fillet protects the synchronous belt, the synchronous belt cannot be damaged in the rotating process, and a foundation is provided for high-speed operation of the air blower. The belt pulley with the transition fillet protects the synchronous belt, the synchronous belt cannot be damaged in the rotating process, and a foundation is provided for high-speed operation of the air blower. When the synchronous belt rotates, the reasonable tooth socket shape ensures that the synchronous belt is stressed uniformly, and has stable use and long service life.
Drawings
Fig. 1 is one of the schematic structural views of the pulley for centrifugal blower according to the present invention;
fig. 2 is a second schematic structural view of the pulley for a centrifugal blower according to the present invention;
fig. 3 is a third schematic structural view of a pulley for a centrifugal blower according to the present invention;
fig. 4 is a partially enlarged view of the area a in fig. 3.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
referring to fig. 1-4, a belt pulley for a centrifugal blower is applied to a centrifugal blower, the centrifugal blower includes a housing 1 and a rotating shaft 2, one end of the rotating shaft 2 is outside the housing 1 and includes a belt pulley 6, the belt pulley 6 is disposed outside the housing 1 and sleeved on the rotating shaft 2, the belt pulley 6 is provided with a bolt groove 61, the rotating shaft 2 is provided with a bolt structure 21, and the bolt structure 21 is embedded in the bolt groove 61; the rotating shaft 2 is provided with a first mounting hole 22, the belt pulley 6 is provided with a second mounting hole 62, and after the bolt structure 21 is completely embedded into the bolt groove 61, the center line of the first mounting hole 22 coincides with the center line of the second mounting hole 62.
Traditional centrifugal blower has multiple working methods according to the connected mode with the motor, and the centrifugal blower who adopts the mode that belt pulley 6 and hold-in range are connected wherein just can make the impeller obtain the effect that is higher than motor speed, and based on high rotational speed motor is expensive, and the maintenance cost is also high, consequently adopts ordinary low-speed motor to connect hold-in range and hold-in range to drive the centrifugal blower of impeller and uses extensively, but the blast effect of formation is not good, and the wind speed is lower, is difficult to satisfy the user demand. Meanwhile, in the use process of the common belt pulley 6, the synchronous belt is broken or falls off due to reasons such as motor acceleration, motor vibration and the like, and meanwhile, the synchronous belt needs to be tensioned by adjusting the distance between the motor and the rotating shaft 2 after being installed, so that the installation of the synchronous belt again is extremely troublesome. Therefore, the installation and fixation of the timing belt is a big reason for preventing the centrifugal blower from forming high-speed air flow. Therefore, in the embodiment, the belt pulley 6 is provided to ensure the falling prevention of the synchronous belt and the simple installation.
As a further optimization of the scheme, the belt pulley 6 comprises a first belt pulley block 64 and a second belt pulley block 65, the first belt pulley block 64 is provided with a first limiting block 641, the second belt pulley block 65 is provided with a second limiting block 651, and when the synchronous belt is installed on the belt pulley 6, the first limiting block 641 and the second limiting block 651 are respectively located at two sides of the synchronous belt. The hold-in range adopts two stoppers of combination formula to fix on belt pulley 6, and when hold-in range drive belt pulley 6 rotated, the hold-in range had restricted the axial motion on belt pulley 6, can not take place to drop, has satisfied high-speed centrifugal blower's use needs.
In this embodiment, through designing belt pulley 6 for the two half structures of combination formula, install on axis of rotation 2 through utilizing bolt structure 21 first belt pulley piece 64 earlier in the installation, overlap the hold-in range cover and establish back on first belt pulley piece 64, the tensioning of hold-in range is adjusted to the distance of adjustment motor and axis of rotation 2, install second belt pulley piece 65 on first belt pulley piece 64 again, the formation utilizes first stopper 641 and second stopper 651 to the spacing of hold-in range, prevent breaking away from of hold-in range in the use. That is to say, solved high rotational speed and broken away from the problem, change the hold-in range simultaneously, dismantle down behind the second belt pulley piece 65, directly just can have the space to install the hold-in range, need not adjust the motor and the distance of axis of rotation 2 unlike traditional belt pulley 6 that takes spacingly, greatly improve change efficiency.
The stopper of combination formula is extremely convenient when changing the hold-in range simultaneously, only needs to dismantle second stopper 651 and can provide the hold-in range mounted position. The bolt structure 21 is adopted to transmit the force between the belt pulley 6 and the rotating shaft 2, and the disassembly is flexible. Adopt two mounting holes to carry out the second grade and fix, guarantee that belt pulley 6 can not take place axial motion when the pivoted, further improve fixed effect. Bolt structure 21 and bolt recess 61 are the transmission structure of power, and first mounting hole 22 and second mounting hole 62 are the structure of restriction axial motion, and belt pulley 6 is rotating the in-process because the hold-in range probably leads to the production of axial force for the installation of aligning, and normal rotation in-process axial force is little, adopts two mounting holes can satisfy the requirement completely, installation and dismantlement and convenience.
As a further optimization of the scheme, the first pulley block 64 is provided with a third mounting hole 642, the second pulley block 65 is provided with a fourth mounting hole 652, when the second pulley block 65 is sleeved on the first pulley block 64, the central line of the third mounting hole 642 is overlapped with the central line of the fourth mounting hole 652, and the third mounting hole 642 and the fourth mounting hole 652 form a second mounting hole 62. The two combined pulley blocks are used for fixing the pulley 6 integrally on one hand and fixing the first and second pulley blocks 65 relatively on the other hand by using the third mounting hole 642 and the fourth mounting hole 652.
Through the scheme, the synchronous belt is fixed by the two combined limiting blocks on the belt pulley 6, when the synchronous belt drives the belt pulley 6 to rotate, the synchronous belt limits the axial movement on the belt pulley 6, the synchronous belt cannot fall off, and the use requirement of a high-speed centrifugal air blower is met. The stopper of combination formula is extremely convenient when changing the hold-in range simultaneously, only needs to dismantle second stopper 651 and can provide the hold-in range mounted position. The bolt structure 21 is adopted to transmit the force between the belt pulley 6 and the rotating shaft 2, and the disassembly is flexible.
As a further optimization of the solution, the center line of the first mounting hole 22 and the center line of the plug-pin structure 21 are designed perpendicularly on the rotation axis 2, and the first mounting hole 22 is located outside the plug-pin structure 21. Prevent two-stage fixed knot structure mutual interference, improve the installation convenience. The mounting hole in the outside is convenient for dismantle second pulley block 65 when changing the hold-in range.
Example 2:
referring to fig. 1 to 3, a difference between this embodiment and embodiment 2 is that embodiment 1 is designed for how the pulley 6 is more stably mounted on the rotating shaft 2 and for fixing the synchronous belt, and this embodiment is specifically designed for the structure of the tooth groove 63 on the pulley 6, so as to protect the synchronous belt from more stable operation, and the synchronous belt has a longer service life.
In this embodiment, the belt pulley 6 is provided with a plurality of trapezoidal tooth sockets 63 uniformly distributed, and four corners of the tooth sockets 63 are provided with transition fillets 631; the tooth form angle of the tooth slot 63 is 45-60 degrees, and the radius of the transition fillet 631 is 20-30 percent of the depth of the tooth slot 63. The belt pulley 6 with the transition fillet 631 protects the synchronous belt, and the synchronous belt cannot be damaged in the rotating process, so that a foundation is provided for the high-speed operation of the air blower. The conventional belt pulley 6 has no handling condition because it has a sharp corner at each of the four corners of the tooth groove 63, resulting in easy damage to the synchronous belt. The belt pulley 6 with the transition fillet 631 protects the synchronous belt, and the synchronous belt cannot be damaged in the rotating process, so that a foundation is provided for the high-speed operation of the air blower. When the synchronous belt rotates, the reasonable tooth groove 63 shape ensures that the synchronous belt is stressed uniformly, and has stable use and long service life.
As a further optimization of the solution, the splines 63 are provided on the first pulley block 64. The tooth groove 63 is arranged on the first belt pulley block 64, and when the synchronous belt is replaced and installed, only the second belt pulley block 65 needs to be detached.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The belt pulley for the centrifugal blower is applied to the centrifugal blower, the centrifugal blower comprises a shell (1) and a rotating shaft (2), one end of the rotating shaft (2) is arranged outside the shell (1), the belt pulley is characterized by comprising a belt pulley (6), the belt pulley (6) is arranged on the outer side of the shell (1) and sleeved on the rotating shaft (2), the belt pulley (6) is provided with a bolt groove (61), the rotating shaft (2) is provided with a bolt structure (21), and the bolt structure (21) is embedded into the bolt groove (61); be equipped with first mounting hole (22) on axis of rotation (2), be equipped with second mounting hole (62) on belt pulley (6), bolt structure (21) imbeds completely behind bolt recess (61), the central line of first mounting hole (22) with the coincidence of the central line of second mounting hole (62).
2. The pulley for a centrifugal blower according to claim 1, wherein the pulley (6) comprises a first pulley block (64) and a second pulley block (65), the first pulley block (64) is provided with a first stopper block (641), the second pulley block (65) is provided with a second stopper block (651), and when a synchronous belt is installed on the pulley (6), the first stopper block (641) and the second stopper block (651) are respectively located at both sides of the synchronous belt.
3. The pulley for a centrifugal blower according to claim 2, wherein the first pulley block (64) is provided with a third mounting hole (642), the second pulley block (65) is provided with a fourth mounting hole (652), and when the second pulley block (65) is sleeved on the first pulley block (64) and the center line of the third mounting hole (642) and the center line of the fourth mounting hole (652) coincide, the third mounting hole (642) and the fourth mounting hole (652) form the second mounting hole (62).
4. -pulley for a centrifugal blower according to claim 3, characterised in that the pulley (6) is provided with several trapezoidal tooth grooves (63) distributed uniformly, the four corners of said tooth grooves (63) being provided with transition fillets (631); the tooth form angle of the tooth groove (63) is 45-60 degrees, and the radius of the transition fillet (631) is 20-30% of the depth of the tooth groove (63).
5. Pulley for a centrifugal blower according to claim 4, characterized in that the splines (63) are provided on the first pulley block (64).
6. Pulley for a centrifugal blower according to claim 5, characterized in that the centre line of the first mounting hole (22) and the centre line of the latch structure (21) are designed perpendicularly on the rotation axis (2).
7. Pulley for a centrifugal blower according to claim 6, characterized in that the first mounting hole (22) is located outside the latch structure (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920513917.XU CN209925241U (en) | 2019-04-16 | 2019-04-16 | Belt pulley for centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920513917.XU CN209925241U (en) | 2019-04-16 | 2019-04-16 | Belt pulley for centrifugal blower |
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| Publication Number | Publication Date |
|---|---|
| CN209925241U true CN209925241U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920513917.XU Active CN209925241U (en) | 2019-04-16 | 2019-04-16 | Belt pulley for centrifugal blower |
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| CN (1) | CN209925241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472985A (en) * | 2020-04-27 | 2020-07-31 | 江苏优格曼航空科技有限公司 | High-efficient vibration/noise reduction's centrifugal fan |
-
2019
- 2019-04-16 CN CN201920513917.XU patent/CN209925241U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472985A (en) * | 2020-04-27 | 2020-07-31 | 江苏优格曼航空科技有限公司 | High-efficient vibration/noise reduction's centrifugal fan |
| CN111472985B (en) * | 2020-04-27 | 2021-04-09 | 江苏优格曼航空科技有限公司 | Vibration/noise reduction's centrifugal fan |
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