CN221054231U - Belt tensioning mechanism and belt transmission device using same - Google Patents
Belt tensioning mechanism and belt transmission device using same Download PDFInfo
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- CN221054231U CN221054231U CN202322938357.1U CN202322938357U CN221054231U CN 221054231 U CN221054231 U CN 221054231U CN 202322938357 U CN202322938357 U CN 202322938357U CN 221054231 U CN221054231 U CN 221054231U
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- belt
- pulley
- tensioning
- tensioning mechanism
- wheel set
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- 230000005540 biological transmission Effects 0.000 title abstract description 12
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a belt tensioning mechanism and a belt transmission device using the same. The tensioning mechanism includes: a driving gear, a rack plate and a driven gear; two sides of the rack plate are respectively meshed with the driving gear and the driven gear; the rack plate is connected with a rotating shaft, the rotating shaft is rotatably connected with a tensioning wheel, and the surface of the tensioning wheel is provided with a connecting groove; the belt center is provided with a bulge, and the surface of the tensioning wheel is provided with a connecting groove matched with the bulge and is abutted with the bulge at the belt center. In the scheme, due to the ring groove design of the belt pulley and the protruding part of the belt, the tensioning effect can be achieved by only designing a tensioning wheel matched with the protruding part to press the main belt. Because the tensioning wheel does not need to be meshed with the belt, accumulated heat and vibration can not be generated. Although this arrangement increases the stress in the central part of the belt, excessive losses of the belt are not generated due to the provision of the projections.
Description
Technical Field
The utility model relates to the technical field of belt pulleys, in particular to a belt tensioning mechanism and a belt transmission device using the same.
Background
The belt pulley is generally made of steel, aluminum alloy, cast iron, brass and other materials, and the inner hole of the belt pulley is provided with round holes, D-shaped holes, conical holes and other forms. The belt pulley transmission consists of a closed annular adhesive tape with equidistant teeth on the inner peripheral surface and a corresponding belt pulley.
The traditional tensioning mechanism is characterized in that a belt pulley is additionally arranged as a tensioning wheel to be arranged on the mechanism, and the disadvantage of the arrangement is that the service life of a belt can be influenced by one more belt pulley, and meanwhile noise and vibration can be generated correspondingly. Further, based on the design of the belt pulley developed independently, a belt tensioning mechanism and a belt transmission device using the belt tensioning mechanism are provided.
Disclosure of utility model
The present utility model is directed to a belt tensioning mechanism and a belt driving device using the same, which can solve at least one of the above-mentioned problems.
According to one aspect of the present utility model, there is provided a belt tensioning mechanism comprising: a driving gear, a rack plate and a driven gear; two sides of the rack plate are respectively meshed with the driving gear and the driven gear; the rack plate is connected with a rotating shaft, the rotating shaft is rotatably connected with a tensioning wheel, and the surface of the tensioning wheel is provided with a connecting groove; the belt center is provided with a bulge, and the surface of the tensioning wheel is provided with a connecting groove matched with the bulge and is abutted with the bulge at the belt center.
In the above technical scheme, the tensioning mechanism is established based on the belt pulley, and is designed by designing a protruding part on the belt and utilizing the protruding part of the belt due to the ring groove part of the belt pulley. The traditional tensioning mechanism is characterized in that a belt pulley is additionally arranged as a tensioning wheel to be arranged on the mechanism, and the disadvantage of the arrangement is that the service life of a belt can be influenced by one more belt pulley, and meanwhile noise and vibration can be generated correspondingly. In the scheme, due to the ring groove design of the belt pulley and the protruding part of the belt, the tensioning effect can be achieved by only designing a tensioning wheel matched with the protruding part to press the main belt. Meanwhile, as the tensioning wheel does not need to be meshed with the belt, accumulated heat and vibration can not be generated. Further, although such an arrangement increases the stress at the center portion of the belt, excessive loss of the belt is not generated due to the arrangement of the protruding portions.
In some embodiments, the pulley comprises a first set of wheels and a second set of wheels, each of the first set of wheels and the second set of wheels having a plurality of teeth; a ring groove is arranged between the first wheel set and the second wheel set; the mounting hole of the belt pulley is a square mounting hole.
In some embodiments, the cross-sectional shape of the ring groove may be square or V-shaped.
In the technical scheme, the cross section of the annular groove can increase the contact area with the belt if square is selected, and the V-shaped cross section allows a larger transmission ratio and has the advantages of buffering and damping.
In some embodiments, the width of the projection is 1/3 to 1/2 of the width of the first wheel set.
In the above technical scheme, the purpose of setting up like this is to avoid the belt pulley to slip, the circumstances such as skew to lead to the belt to drop when the belt pulley is high-speed operation.
In some embodiments, the protrusion has a depth of 1/7 to 1/6 of the pulley diameter.
In the above technical scheme, the purpose of setting up like this is to avoid the belt pulley to slip, the circumstances such as skew to lead to the belt to drop when the belt pulley is high-speed operation.
According to another aspect of the present utility model, there is provided a belt transmission device including: belt, driving pulley, driven pulley, driving and driven shafts and a belt tensioning mechanism as described above.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a belt tensioning mechanism according to one embodiment of the present utility model;
FIG. 2 is a second perspective view of a belt tensioning mechanism according to one embodiment of the present utility model;
FIG. 3 is a perspective view of a pulley of one embodiment of a belt tensioning mechanism of the present utility model;
FIG. 4 is a schematic diagram of the front face of a pulley of one embodiment of a belt tensioning mechanism of the present utility model;
FIG. 5 is a schematic diagram of a second embodiment of a belt tensioning mechanism according to the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is specifically noted that the following examples are only for illustrating the present utility model, but do not limit the scope of the present utility model. Likewise, the following examples are only some, but not all, of the examples of the present utility model, and all other examples, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the present utility model.
The present utility model provides a belt tensioning mechanism and a belt transmission device using the same, which can solve at least one of the problems mentioned in the background art.
Referring to fig. 1 and 2, the tensioning mechanism includes: a driving gear 41, rack plate 42, and driven gear 43; the rack plate 42 is meshed with the driving gear 41 and the driven gear 43 at two sides respectively; a rotation shaft 45 is connected to the rack plate 42, a tension pulley 44 is rotatably connected to the rotation shaft 45, and a connection groove is provided on the surface of the tension pulley 44 to be engaged with the protrusion 321, and the connection groove is abutted against the protrusion 321 of the belt. It should be noted that, in order to better understand the tensioning mechanism and the tensioning principle thereof, the corresponding tensioning mechanism frame, fixing seat, etc. are not drawn in the drawings, and these parts may be regarded as the prior art, and are set according to actual needs, which is not limited in this embodiment. In the use, adjust rack version 42 through driving gear 41 and reciprocate and realize controlling take-up pulley 44 and reciprocate, and then control take-up pulley 44 exerts the dynamics on the belt, and the setting of this kind of rack can more meticulously adjust the tensioning force simultaneously, and simple structure, compactness are convenient for set up in different positions. Further, in order to ensure smooth adjustment, the driven gear 43 is provided at a symmetrical position of the driving gear 41, thereby improving the stability of the structure. The width of the protruding part is 1/2 of the width of the first wheel set. The purpose of this arrangement is to avoid belt slip, offset, etc. from causing belt drop-off when the pulley is running at high speed. The depth of the protruding part is 1/7-1/6 of the diameter of the belt pulley. The purpose of this arrangement is to avoid belt slip, offset, etc. from causing belt drop-off when the pulley is running at high speed.
Referring to fig. 1, 2, 3 and 4, the pulley comprises a first wheel set 15 and a second wheel set 16, and a plurality of gear teeth are arranged on the surface of the first wheel set 15 and the surface of the second wheel set 16; a ring groove 17 is arranged between the first wheel set 15 and the second wheel set 16; the pulley mounting hole 14 is a square mounting hole.
In the technical scheme, the tensioning mechanism is established based on the belt pulley, the belt is additionally provided with the protruding part due to the ring groove part of the belt pulley, and the tensioning mechanism is designed by utilizing the protruding part of the belt. The traditional tensioning mechanism is characterized in that a belt pulley is additionally arranged as a tensioning wheel to be arranged on the mechanism, and the disadvantage of the arrangement is that the service life of a belt can be influenced by one more belt pulley, and meanwhile noise and vibration can be generated correspondingly. In the scheme, due to the ring groove design of the belt pulley and the protruding part of the belt, the tensioning effect can be achieved by only designing a tensioning wheel matched with the protruding part to press the main belt. Meanwhile, as the tensioning wheel does not need to be meshed with the belt, accumulated heat and vibration can not be generated. Further, although such an arrangement increases the stress at the center portion of the belt, excessive loss of the belt is not generated due to the arrangement of the protruding portions.
Second embodiment
A belt drive, the drive comprising: a belt tensioning mechanism for one of a belt, a driving pulley, a driven pulley, a driving and driven shafts and an embodiment. Referring to fig. 5, the transmission mechanism includes: a belt 32, a driving pulley 31, a driven pulley 33, a driving shaft 34, and a driven shaft 35;
The driving pulley 31 and the driven pulley 33 are one type of belt tensioning mechanism 1 in one of the embodiments; the convex portion 321 which is engaged with the ring groove 17 is provided on the side where the convex teeth are arranged on the belt 32.
In the technical scheme, the transmission mechanism is established based on the belt pulley, and the convex part is further designed on the belt due to the ring groove design of the belt pulley, so that the whole transmission mechanism can not deviate the belt under the matching of the ring groove and the convex part.
The foregoing description is only a partial embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the present utility model.
Claims (6)
1. A belt tensioning mechanism for a pulley, comprising: a driving gear, rack plate, belt and driven gear; the two sides of the rack plate are respectively meshed with the driving gear and the driven gear; the rack plate is connected with a rotating shaft, the rotating shaft is rotatably connected with a tensioning wheel, and the surface of the tensioning wheel is provided with a connecting groove; the belt center department is provided with a bulge, the take-up pulley surface is provided with the spread groove that agrees with the bulge mutually to with the bulge butt in belt center department.
2. A belt tensioner as in claim 1, wherein,
The belt pulley comprises a first wheel set and a second wheel set, and a plurality of gear teeth are arranged on the surfaces of the first wheel set and the second wheel set; a ring groove is arranged between the first wheel set and the second wheel set; the mounting hole of the belt pulley is a square mounting hole.
3. A belt tensioner as in claim 1, wherein the cross-sectional shape of the projection is selected from the group consisting of square and V.
4. A belt tensioner as in claim 2, wherein,
The width of the protruding part is 1/3-1/2 of the width of the first wheel set.
5. A belt tensioner as in claim 2, wherein,
The depth of the protruding part is 1/7-1/6 of the diameter of the belt pulley.
6. A belt drive, comprising: belt, driving pulley, driven pulley, driving and driven shafts and a belt tensioning mechanism as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938357.1U CN221054231U (en) | 2023-10-31 | 2023-10-31 | Belt tensioning mechanism and belt transmission device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938357.1U CN221054231U (en) | 2023-10-31 | 2023-10-31 | Belt tensioning mechanism and belt transmission device using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221054231U true CN221054231U (en) | 2024-05-31 |
Family
ID=91200894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322938357.1U Active CN221054231U (en) | 2023-10-31 | 2023-10-31 | Belt tensioning mechanism and belt transmission device using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221054231U (en) |
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2023
- 2023-10-31 CN CN202322938357.1U patent/CN221054231U/en active Active
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