CN201858181U - Belt protection device for negative-pressure air fan - Google Patents
Belt protection device for negative-pressure air fan Download PDFInfo
- Publication number
- CN201858181U CN201858181U CN2010205467949U CN201020546794U CN201858181U CN 201858181 U CN201858181 U CN 201858181U CN 2010205467949 U CN2010205467949 U CN 2010205467949U CN 201020546794 U CN201020546794 U CN 201020546794U CN 201858181 U CN201858181 U CN 201858181U
- Authority
- CN
- China
- Prior art keywords
- belt
- protection device
- fan
- motor
- tightening wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a belt protection device for a negative-pressure air fan, which comprises a fan main body and a support bracket arranged on the fan main body, wherein a fan impeller is fixedly mounted on the support bracket; fan blades are flexibly mounted on the fan impeller; a motor is mounted on the bottom of the fan main body; a motor triangular belt wheel on the motor is connected to the fan impeller through a triangular belt; the triangular belt is composed of an upper triangular belt and a lower triangular belt; and a belt protection device is arranged on the triangular belt between the motor triangular belt wheel and the fan impeller. The belt protection device provided by the utility model solves the problem that the belt is easily loosened and swings left and right, thereby prolonging the service life of the belt.
Description
Technical field
The utility model relates to a kind of negative-pressure air fan belt protection device.
Background technique
At present, the general on the market negative-pressure air fan that is using, comprise blower fan body and the supporting frame that is installed on the body, be installed with fan blade on the supporting frame, be movably installed with fan blade on the fan blade, blower fan body bottom is equipped with motor, is connected by v belt between the motor Vee pulley V on the motor and the fan blade.This kind negative-pressure air fan is after using a period of time, it is loosening to occur v belt easily, and the fan blade that causes driving same power rotates needs increase power consumption, becomes flexible to cause v belt to swing again, thereby make the collision of v belt and fan blade easily and break belt, perhaps stave fan blade.
The model utility content
The purpose of this utility model is to provide a kind of negative-pressure air fan belt protection device, and it is loosening easily that the utility model has solved belt, and the problem that swings has increased working life of belt.
In order to achieve the above object, the technical solution of the utility model is:
A kind of negative-pressure air fan belt protection device, comprise blower fan body and the supporting frame that is installed on the blower fan body, be installed with fan blade on the supporting frame, be movably installed with fan blade on the fan blade, blower fan body bottom is equipped with motor, be connected by v belt between motor Vee pulley V on the motor and the fan blade, v belt is made up of last v belt and following v belt; On the v belt between described motor Vee pulley V and the fan blade belt protection device is installed.
Described belt protection device comprises expansion tightening wheel support, expansion tightening wheel and spring; Wherein on the blower fan body expansion tightening wheel support is installed, offers chute on the expansion tightening wheel support, be movably installed with expansion tightening wheel on the expansion tightening wheel support, the v belt between motor Vee pulley V and the fan blade just is positioned on the pulley groove of expansion tightening wheel; And the axle on the expansion tightening wheel is movably fastened by pad and is installed on the chute, is connected with spring on the axle, and the other end of spring is fixed on the blower fan body.
2 inner side surfaces of described pulley groove are made into the inclined-plane with angle of inclination with the v belt coupling.
Described belt protection device is installed in the last v belt between motor Vee pulley V and the fan blade or descends the neutral position of v belt.
The beneficial effects of the utility model are: belt protection device of the present utility model is installed in the neutral position between motor Vee pulley V and fan blade, the v belt in neutral position is the place of easy transverse judder, not only tightening belt but also can effectively prevent swinging of belt easily; Secondly pulley groove is stressed with the bi-side of v belt, can protect belt do not allow easily broken and prevent belt because of service time long back produce the phenomenon of becoming flexible.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of negative-pressure air fan belt protection device of the utility model indication, as shown in Figure 1, comprise blower fan body 1 and the supporting frame 2 that is installed on the blower fan body 1, be installed with fan blade 3 on the supporting frame 2, be movably installed with fan blade 4 on the fan blade 3, blower fan body 1 bottom is equipped with motor 5, is connected by v belt between the motor Vee pulley V 6 on the motor 5 and the fan blade 3, and v belt is made up of last v belt 7 and following v belt 15; On the neutral position of the last v belt 7 between described motor Vee pulley V 6 and the fan blade 3 the belt protection device is installed.The belt protection device comprises expansion tightening wheel support 8, expansion tightening wheel 10 and spring 13; Wherein on the blower fan body 1 expansion tightening wheel support 8 is installed, offer chute 9 on the expansion tightening wheel support 8, be movably installed with expansion tightening wheel 10 on the expansion tightening wheel support 8, the v belt 7 between motor Vee pulley V 6 and the fan blade 3 just is positioned on the pulley groove 14 of expansion tightening wheel 10; And the axle 11 on the expansion tightening wheel 10 is movably fastened by pad 12 and is installed on the chute 9, is connected with spring 13 on the axle 11, and the other end of spring 13 is fixed on the blower fan body 1.2 inner side surfaces of described pulley groove 14 are made into the inclined-plane with angle of inclination with v belt 7 couplings; The belt protection device of present embodiment also can be installed in the neutral position of the following v belt 15 between motor Vee pulley V 6 and the fan blade 3.
During the negative-pressure air fan running, motor 5 drive v belt motions make fan blade 3 rotate and drive fan blades 4 rotations, make blower fan operate.Negative-pressure air fan belt protection device is owing to be subjected to the restoring force of spring 13; make axle 11 that a pulling force to the right be arranged all the time, it is slided to the right in chute 9, drive expansion tightening wheel 10 also has trend to the right; and make pulley groove 14 jack-up v belt, make v belt be in tensioned state all the time.This device can be avoided belt in use loosening, elongated owing to growing the back belt service time, and make belt swing.In movement process, just do not need to consume more electric energy, solved because of the elongated problem that causes belt to swing easily of belt simultaneously yet.
Claims (4)
1. negative-pressure air fan belt protection device, comprise blower fan body (1) and be installed in supporting frame (2) on the blower fan body (1), be installed with fan blade (3) on the supporting frame (2), be movably installed with fan blade (4) on the fan blade (3), blower fan body (1) bottom is equipped with motor (5), be connected by v belt between motor Vee pulley V (6) on the motor (5) and the fan blade (3), v belt is made up of last v belt (7) and following v belt (15); It is characterized in that: on the v belt between described motor Vee pulley V (6) and the fan blade (3) the belt protection device is installed.
2. negative-pressure air fan belt protection device as claimed in claim 1 is characterized in that: described belt protection device comprises expansion tightening wheel support (8), expansion tightening wheel (10) and spring (13); Wherein on the blower fan body (1) expansion tightening wheel support (8) is installed, offer chute (9) on the expansion tightening wheel support (8), be movably installed with expansion tightening wheel (10) on the expansion tightening wheel support (8), the v belt (7) between motor Vee pulley V (6) and the fan blade (3) just is positioned on the pulley groove (14) of expansion tightening wheel (10); And the axle (11) on the expansion tightening wheel (10) is movably fastened by pad (12) and is installed on the chute (9), is connected with spring (13) on the axle (11), and the other end of spring (13) is fixed on the blower fan body (1).
3. negative-pressure air fan belt protection device as claimed in claim 2 is characterized in that: 2 inner side surfaces of described pulley groove (14) are made into the inclined-plane with angle of inclination with v belt (7) coupling.
4. negative-pressure air fan belt protection device as claimed in claim 1 is characterized in that: described belt protection device is installed in the last v belt (7) between motor Vee pulley V (6) and the fan blade (3) or descends the neutral position of v belt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205467949U CN201858181U (en) | 2010-09-26 | 2010-09-26 | Belt protection device for negative-pressure air fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205467949U CN201858181U (en) | 2010-09-26 | 2010-09-26 | Belt protection device for negative-pressure air fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858181U true CN201858181U (en) | 2011-06-08 |
Family
ID=44103988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205467949U Expired - Fee Related CN201858181U (en) | 2010-09-26 | 2010-09-26 | Belt protection device for negative-pressure air fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943177A (en) * | 2010-09-26 | 2011-01-12 | 边永明 | Belt protector of negative-pressure air fan |
-
2010
- 2010-09-26 CN CN2010205467949U patent/CN201858181U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943177A (en) * | 2010-09-26 | 2011-01-12 | 边永明 | Belt protector of negative-pressure air fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201858181U (en) | Belt protection device for negative-pressure air fan | |
| CN204041548U (en) | A kind of novel fan | |
| CN101943177A (en) | Belt protector of negative-pressure air fan | |
| CN207345851U (en) | A kind of energy conservation and environmental protection railway signal lamp | |
| CN204226272U (en) | A kind of draught fan impeller hub disk | |
| CN201572678U (en) | Air flow distribution device of electric dust remover | |
| CN203361081U (en) | Novel snow sweeper | |
| CN203425870U (en) | Rotor body of reversible crushing machine | |
| CN201448280U (en) | Motor connecting bracket of centrifugal blower | |
| CN202320708U (en) | Simple bicycle chain tensioning device | |
| CN204041493U (en) | Waste suction blower fan | |
| CN202900717U (en) | Oscillating platform fan | |
| CN202811427U (en) | Direct drive type negative pressure fan | |
| CN2802790Y (en) | Reinforced commutator | |
| CN208456888U (en) | A kind of novel fan with silencing function | |
| CN201851407U (en) | Louver bracket on air outlet of negative pressure fan | |
| CN207328388U (en) | A kind of dual AC power is to scraping wiper motor bracket | |
| CN205221777U (en) | Novel transmission band | |
| CN207454332U (en) | A kind of New Type of Fan stent | |
| CN202054415U (en) | Spring sweeper for rubber belt conveyor | |
| CN208375200U (en) | A kind of stud assembly tool for wind power generating set | |
| CN202579848U (en) | Belt transmission device and clothes dryer with same | |
| CN208053130U (en) | A kind of non-damageable electric vehicle stable discharge device | |
| CN208488263U (en) | A kind of carwash leather machine belting anomaly detector | |
| CN202977943U (en) | Motor in air compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20120926 |