CN204267671U - A kind of synchronous belt wheel - Google Patents
A kind of synchronous belt wheel Download PDFInfo
- Publication number
- CN204267671U CN204267671U CN201420673130.7U CN201420673130U CN204267671U CN 204267671 U CN204267671 U CN 204267671U CN 201420673130 U CN201420673130 U CN 201420673130U CN 204267671 U CN204267671 U CN 204267671U
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- teeth
- gear teeth
- belt pulley
- teeth portion
- gear
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Abstract
The utility model relates to a kind of synchronous belt wheel, the gear teeth are had at the outer surface of belt pulley, outer surface along whole belt pulley in the middle of the gear teeth of belt pulley is provided with an annular groove, the gear teeth of belt pulley are divided into first round teeth portion and second to take turns teeth portion by annular groove, between the gear teeth of first round teeth portion, tooth pitch is P, gear teeth bearing of trend and the belt pulley axle center line of first round teeth portion form angle a, between second gear teeth of taking turns teeth portion, tooth pitch is P ', and second takes turns the gear teeth bearing of trend of teeth portion and belt pulley axle center line, and to form angle be a '.The noise that the synchronous belt wheel that the utility model proposes produces when can reduce transmission.
Description
Technical field
The utility model relates to a kind of belt pulley, and particularly a kind of synchronous belt is taken turns.
Background technique
Between the transmission of synchronous belt wheel to be provided with etc. by an inner peripheral surface, the closed ring Timing Belt of tooth pitch tooth and corresponding belt pulley formed.As shown in Figure 3, Timing Belt 8 on the peripheral sleeve of two belt pulleys 7.When the running of whole device, the band tooth of Timing Belt 8 is meshed with the teeth groove of belt pulley 7 transferring power, and this kind of drive manner belongs to engagement driving.Simultaneously for preventing Timing Belt 8 axial float or skid off belt pulley 7 in transmitting procedure, generally adding rib 9 on belt pulley 7 both sides, improving whole device maintainability.
Above-mentioned traditional synchronous belt wheel kind of drive due to the band tooth of Timing Belt engage with the teeth groove of belt pulley time, air in the teeth groove of belt pulley is squeezed suddenly, air is forced to be discharged from belt pulley teeth groove, owing to being the impact force produced instantaneously, can the sound be sent, produce larger noise pollution thus.When reaching high rotating speed, when namely rotating speed is 10000rpnm/min to 15000rpnm/min, the noise produced is more obvious.Noise spectrum through producing synchronous belt wheel is analyzed, the generation of result display noise and the meshing frequency with teeth groove, and the harmonics of this meshing frequency is correlated with.Meanwhile, the impact force produced instantaneously when the band tooth of Timing Belt engages with the teeth groove of belt pulley, has larger shock stiffness, greatly reduces the working life of Timing Belt and belt pulley.
Model utility content
The technical problems to be solved in the utility model there is provided a kind of synchronous belt producing noise when synchronous belt takes turns transmission that reduces and takes turns.
The synchronous belt wheel of the utility model for solving the problem proposed, the gear teeth are had at the outer surface of belt pulley, outer surface along whole belt pulley in the middle of the gear teeth of belt pulley is provided with an annular groove, the gear teeth of belt pulley are divided into first round teeth portion and second to take turns teeth portion by annular groove, between the gear teeth of first round teeth portion, tooth pitch is P, gear teeth bearing of trend and the belt pulley axle center line of first round teeth portion form angle a, between second gear teeth of taking turns teeth portion, tooth pitch is P ', and second takes turns the gear teeth bearing of trend of teeth portion and belt pulley axle center line, and to form angle be a '.
According to an embodiment of the present utility model, the groove width of annular groove is greater than 0.5mm, and is less than 1/3rd of the outer surface width of described belt pulley.
According to an embodiment of the present utility model, the groove depth of annular groove is less than 50mm.
According to an embodiment of the present utility model, between the gear teeth that between the gear teeth of first round teeth portion, tooth pitch P and second takes turns teeth portion, tooth pitch P ' is equal.
According to an embodiment of the present utility model, the angle value of angle a is identical with the angle value of angle a ', and the gear bearing of trend that the gear bearing of trend of the first gear part and second takes turns teeth portion is different.
According to an embodiment of the present utility model, the gear teeth that the gear teeth of first round teeth portion and second take turns teeth portion stagger mutually in the both sides of annular groove.
According to an embodiment of the present utility model, the gear teeth that the gear teeth of first round teeth portion and second take turns teeth portion are arranged in the bilateral symmetry of annular groove.
The utility model is provided with at the periphery tooth surface intermediate portion of belt pulley the annular groove that has sound deadening, effectively alleviate the impact force that synchronous belt wheel produces during teeth groove engagement instantaneously when running up transmission, reduce operating noise during transmission, thus improve the working life of Timing Belt and belt pulley.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model belt pulley.
Fig. 2 is the structural representation of the outer surface of the utility model belt pulley.
Fig. 3 is the using state figure of prior art middle belt pulley.
Embodiment
In order to understand the utility model further, below in conjunction with accompanying drawing, embodiment is described in detail.
Fig. 1 is the structural representation of the utility model belt pulley.As shown in Figure 1, the outer surface of belt pulley 7 has the gear teeth 6, and the outer surface along whole belt pulley 7 in the middle of the gear teeth 6 of belt pulley 7 is provided with an annular groove 5, and the gear teeth of belt pulley are divided into first round teeth portion 61 and second to take turns teeth portion 62 by annular groove 5.Between the gear teeth of first round teeth portion 61, tooth pitch is P, and between second gear teeth of taking turns teeth portion, tooth pitch is P ', and tooth pitch here refers to the pitch of adjacent two teeth on pitch circle.Gear teeth bearing of trend and the belt pulley axle center line of first round teeth portion form angle a, and second takes turns the gear teeth bearing of trend of teeth portion and belt pulley axle center line, and to form angle be a '.
Preferably, the groove width of annular groove is greater than 0.5mm, and is less than 1/3rd of the outer surface width of belt pulley.
Preferably, the groove depth of annular groove is less than 50mm.Design annular groove 5 in this way, better erasure effect can be obtained.
Preferably, between the gear teeth that between the gear teeth of first round teeth portion 61, tooth pitch P and second takes turns teeth portion 62, tooth pitch P ' is equal.
Further, the gear teeth that the gear teeth and second of first round teeth portion 61 take turns teeth portion 62 stagger mutually in the both sides of annular groove.As shown in Figure 2, the gear teeth that the gear teeth and second of first round teeth portion 61 take turns teeth portion 62 stagger up and down mutually in the both sides of annular groove 5 angle.According to another selection of the utility model embodiment, the angle value of angle a is identical with the angle value of angle a ', and the gear bearing of trend that the gear bearing of trend of the first gear part 61 and second takes turns teeth portion 62 is different, better engages effect to obtain.
Although Fig. 1 and Fig. 2 illustrates that the gear teeth that the gear teeth and second of first round teeth portion 61 take turns teeth portion 62 stagger mutually in the both sides of annular groove, but be appreciated that in another embodiment unshowned in the drawings, the gear teeth that the gear teeth of first round teeth portion and second take turns teeth portion also can be arranged in the bilateral symmetry of annular groove, namely the gear teeth that the gear teeth and second of first round teeth portion take turns teeth portion are aimed at one by one in the both sides of annular groove, without the angle mutually staggered.
The utility model is provided with at the periphery tooth surface intermediate portion of belt pulley the annular groove that has sound deadening, transmission device can be accomplished lighter, quieter, and the efficiency of transmission and performance all obtains the highest.When high rotating speed (10000rpnm/min-15000rpnm/min), than the noise using ordinary straps wheel to reduce 10 decibels, decrease vibration.The utility model is widely used in each technical fields such as automobile, weaving, printing packaging equipment, needling equipment, office equipment, laser engraving equipment, tobacco, financial machine and tool, light of stage, communication food machinery, medical machinery, steel machinery, petrochemical industry, instrument and apparatus, various precision machine tools.
By reference to the accompanying drawings mode of execution of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned mode of execution.Although the utility model with preferred embodiment openly as above; but it is not for limiting the utility model; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with the utility model claim is as the criterion.
Claims (7)
1. a synchronous belt wheel, it is characterized in that, the outer surface of described belt pulley has the gear teeth, outer surface along whole belt pulley in the middle of the gear teeth of described belt pulley is provided with an annular groove, the gear teeth of described belt pulley are divided into first round teeth portion and second to take turns teeth portion by described annular groove, between the gear teeth of described first round teeth portion, tooth pitch is P, gear teeth bearing of trend and the described belt pulley axle center line of described first round teeth portion form angle a, between described second gear teeth of taking turns teeth portion, tooth pitch is P ', described second takes turns the gear teeth bearing of trend of teeth portion and described belt pulley axle center line forms angle a '.
2. a kind of synchronous belt wheel as claimed in claim 1, it is characterized in that, the groove width of described annular groove is greater than 0.5mm, and is less than 1/3rd of the outer surface width of described belt pulley.
3. a kind of synchronous belt wheel as claimed in claim 1, it is characterized in that, the groove depth of described annular groove is less than 50mm.
4. a kind of synchronous belt wheel as claimed in claim 1, is characterized in that, between the gear teeth that between the gear teeth of described first round teeth portion, tooth pitch P and described second takes turns teeth portion, tooth pitch P ' is equal.
5. a kind of synchronous belt wheel as claimed in claim 4, it is characterized in that, the angle value of described angle a is identical with the angle value of described angle a ', and the gear bearing of trend that the gear bearing of trend of described first gear part and described second takes turns teeth portion is different.
6. a kind of synchronous belt wheel as claimed in claim 4, it is characterized in that, the gear teeth and described second gear teeth of taking turns teeth portion of described first round teeth portion stagger mutually in the both sides of described annular groove.
7. a kind of synchronous belt wheel as claimed in claim 4, it is characterized in that, the gear teeth that the gear teeth of described first round teeth portion and described second take turns teeth portion are arranged in the bilateral symmetry of described annular groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673130.7U CN204267671U (en) | 2014-11-12 | 2014-11-12 | A kind of synchronous belt wheel |
| TW104204400U TWM503500U (en) | 2014-11-12 | 2015-03-24 | Synchro driving pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673130.7U CN204267671U (en) | 2014-11-12 | 2014-11-12 | A kind of synchronous belt wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267671U true CN204267671U (en) | 2015-04-15 |
Family
ID=52802542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420673130.7U Active CN204267671U (en) | 2014-11-12 | 2014-11-12 | A kind of synchronous belt wheel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204267671U (en) |
| TW (1) | TWM503500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116322336A (en) * | 2020-07-21 | 2023-06-23 | 贝特彻工业公司 | Feed roller for a power operated trimming tool |
-
2014
- 2014-11-12 CN CN201420673130.7U patent/CN204267671U/en active Active
-
2015
- 2015-03-24 TW TW104204400U patent/TWM503500U/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116322336A (en) * | 2020-07-21 | 2023-06-23 | 贝特彻工业公司 | Feed roller for a power operated trimming tool |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM503500U (en) | 2015-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201300 Shanghai city Pudong New Area Town Park Road No. 269 Building 2 Patentee after: Specifically Xiai dewell (Shanghai) Transmission Machinery Co. Ltd. Address before: 201300 Shanghai city Pudong New Area Town Park Road No. 269 Building 2 Patentee before: The president (Shanghai) Transmission Machinery Co. Ltd. |