CN220816439U - Miniature roller speed reducing mechanism - Google Patents
Miniature roller speed reducing mechanism Download PDFInfo
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- CN220816439U CN220816439U CN202322851865.6U CN202322851865U CN220816439U CN 220816439 U CN220816439 U CN 220816439U CN 202322851865 U CN202322851865 U CN 202322851865U CN 220816439 U CN220816439 U CN 220816439U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 51
- 230000005540 biological transmission Effects 0.000 claims abstract description 72
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000004663 powder metallurgy Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
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- 238000005245 sintering Methods 0.000 description 1
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Abstract
The utility model discloses a miniature roller speed reducing mechanism which comprises a gear ring, an input section, a transmission section and an output section, wherein the input section, the transmission section and the output section are arranged in the gear ring and are sequentially connected, the input section is connected with a driving device, the output section is connected with a roller, internal teeth meshed with the input section, the transmission section and the output section are arranged in the gear ring, a bearing is arranged between the output section and the gear ring, an inner ring of the bearing is connected with the output section, and an outer ring of the bearing is connected with the gear ring. According to the miniature roller speed reducing mechanism, one end of the gear ring is connected with the shell of the driving device, so that the whole length of the speed reducing mechanism is reduced, the speed reducing mechanism is miniaturized, a bearing is arranged between the output section and the gear ring, the whole installation of the speed reducing mechanism is more reliable and can bear the strength torque requirement, the whole strength of the speed reducing mechanism is ensured, the service life is prolonged, and the gear spacer can reduce abnormal noise generated by friction between each planetary gear and each planetary carrier.
Description
Technical Field
The utility model relates to the technical field of rollers, in particular to a miniature roller speed reducing mechanism.
Background
The roller is a cylindrical rotatable object in the machine, a power source (such as a motor) is commonly used in the machine to drive the roller to form a power roller, other materials are driven to advance by the power roller, or the roller is used for producing pressure to process the materials, and a speed reducing mechanism is an important component of the power roller.
At present, along with the progress of technology and the requirements of application scenes, the requirements on the roller speed reducing mechanism are higher and higher, the roller speed reducing mechanism is required to be miniaturized and miniaturized, but the miniaturization and microminiaturization roller speed reducing mechanism can cause the condition of lower service life of the speed reducing mechanism due to insufficient overall strength due to size problems, and meanwhile, the noise of the speed reducing mechanism is controlled when the speed reducing mechanism is operated, so the inventor develops a novel miniature roller speed reducing mechanism to meet the requirements.
Disclosure of utility model
The utility model aims to provide a miniature roller speed reducing mechanism which ensures the whole strength and has long service life and can reduce noise.
In order to solve the technical problems, the utility model can be realized by adopting the following technical scheme:
The miniature roller speed reducing mechanism comprises a gear ring, and an input section, a transmission section and an output section which are arranged in the gear ring and are sequentially connected, wherein the input section is connected with a driving device, the output section is connected with a roller, internal teeth meshed with the input section, the transmission section and the output section are arranged in the gear ring, a bearing is arranged between the output section and the gear ring, an inner ring of the bearing is connected with the output section, and an outer ring of the bearing is connected with the gear ring; the driving device drives the input section to rotate along the internal teeth of the gear ring, and sequentially drives the transmission section and the output section to rotate along the internal teeth of the gear ring, so that the roller connected with the output section rotates.
In one embodiment, the input section comprises an input planet carrier, an input planet shaft, an input planet gear and a driving gear, the driving gear is connected with a rotating shaft of the driving device, the input planet shaft is mounted on the input planet carrier, and the input planet gear is mounted on the input planet shaft and meshed with the driving gear and the internal teeth of the gear ring respectively.
In one embodiment, the transmission section comprises a transmission planet carrier, a transmission planet shaft, a transmission planet gear and a transmission sun gear, wherein the transmission sun gear is connected with the input planet carrier, the transmission planet shaft is arranged on the transmission planet carrier, and the transmission planet gear is arranged on the transmission planet shaft and meshed with the transmission sun gear and the internal teeth of the gear ring respectively.
In one embodiment, the output section comprises an output shaft auxiliary support, an output planet shaft, an output planet gear and an output sun gear, wherein the output sun gear is connected with the transmission planet carrier, the output planet shaft is arranged on the output shaft auxiliary support, and the output planet gear is arranged on the output planet shaft and meshed with the internal teeth of the output sun gear and the internal teeth of the gear ring respectively.
In one embodiment, the output shaft attachment bracket is provided with an extension end, the extension end is used for being connected with the roller, and the inner ring of the bearing is sleeved on the extension end and is in interference fit with the extension end.
In one embodiment, a groove is formed at one end of the gear ring, an outer ring of the bearing is arranged at the groove and in interference fit with the side wall of the groove, a gap is formed at the front end of the groove, and high-strength anaerobic retaining glue is filled at the gap.
In one embodiment, gear spacers are arranged between the input section and the driving device, between the transmission section and the input section, and between the output section and the transmission section.
In one embodiment, the internal teeth meshed with the input section are of a split type structure, split type internal teeth are formed, protrusions are arranged on the outer walls of the split type internal teeth, key grooves corresponding to the protrusions are formed in the inner walls of the gear rings, the protrusions are arranged in the key grooves, the split type internal teeth are connected with the gear rings, and the split type internal teeth are made of plastic materials.
In one embodiment, the transmission sun gear and the input planet carrier, and the output sun gear and the transmission planet carrier are in interference connection.
In one embodiment, the ring gear is manufactured using a carbon steel machining or powder metallurgy forming process.
Advantageous effects
The miniature roller speed reducing mechanism of the utility model connects one end of the gear ring with the shell of the driving device, and can be directly connected without arranging a mounting flange, thereby reducing the whole length of the speed reducing mechanism, enabling the speed reducing mechanism to be miniaturized and miniaturized, then arranging a bearing between the output section and the gear ring, enabling the whole installation of the speed reducing mechanism to be more reliable through the bearing and bearing the strength torque requirement, thereby ensuring the whole strength of the speed reducing mechanism and prolonging the service life, and the gear spacer can reduce abnormal noise generated by friction between each planetary gear and each planetary carrier among the input section, the transmission section and the output section.
Drawings
FIG. 1 is a schematic diagram of a reduction mechanism of a micro roller according to the present utility model;
FIG. 2 is an exploded view of the micro-drum reduction mechanism of the present utility model;
FIG. 3 is a cross-sectional view of a micro-drum reduction mechanism of the present utility model;
FIG. 4 is a schematic diagram of the gear ring structure of the reduction mechanism of the micro roller of the present utility model;
FIG. 5 is an enlarged view of the micro-drum reduction mechanism of the present utility model at A in FIG. 3;
fig. 6 is a schematic view of a split internal tooth structure of the reduction mechanism of the micro roller of the present utility model.
As shown in the accompanying drawings:
100. A gear ring; 110. internal teeth; 110. split internal teeth; 111a, protrusions; 120. a groove; 121. a slit;
200. An input section; 210. inputting a planet carrier; 220. an input planetary shaft; 230. an input planetary gear; 240. a drive gear;
300. A transmission section; 310. a transmission planet carrier; 320. a transmission planetary shaft; 330. a transmission planetary gear; 340. a drive sun gear;
400. An output section; 410. the output shaft is provided with a bracket; 411. an extension end; 420. outputting a planetary shaft; 430. an output planetary gear; 440. an output sun gear;
500. A bearing;
600. Gear spacer.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" 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. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, a micro roller speed reducing mechanism includes a gear ring 100, and an input section 200, a transmission section 300 and an output section 400 which are installed inside the gear ring 100 and sequentially connected, wherein the input section 200 is connected with a driving device, the output section 400 is connected with a roller, internal teeth 110 meshed with the input section 200, the transmission section 300 and the output section 400 are provided inside the gear ring 100, a bearing 500 is provided between the output section 400 and the gear ring 100, an inner ring of the bearing 500 is connected with the output section 200, an outer ring of the bearing 500 is connected with the gear ring 100, the driving device drives the input section 200 to rotate along the internal teeth 110 of the gear ring 100, and sequentially drives the transmission section 300 and the output section 400 to rotate along the internal teeth 110 of the gear ring 100, thereby rotating the roller connected with the output section 400.
Specifically, in this embodiment, the input section 200, the transmission section 300 and the output section 400 are respectively installed inside the gear ring 100, one end of the gear ring 100 can be fixedly connected with the casing of the driving device through screws, the driving device is a motor, the rotating shaft of the motor is connected with the input section 200, the motor drives the input section 200 to rotate along the internal teeth 110, the input section 200 drives the transmission section 300 to rotate along the internal teeth 110, the transmission section 300 drives the output section 400 to rotate along the internal teeth 110, and finally, the roller connected with the output section 400 rotates, and the purpose of decelerating the micro roller is achieved through three-section connection.
In addition, the gear ring 100 is cylindrical and is manufactured by a carbon steel machining or powder metallurgy forming process, so that the strength of the gear ring 100 can be improved, a driving device can be connected with the gear ring 100 directly through screws without arranging a mounting flange, the overall length of a speed reducing mechanism is reduced, meanwhile, a bearing 500 is arranged between the output section 200 and the gear ring 100, the inner ring of the bearing 500 is in interference connection with the output section 200, the outer ring of the bearing 500 is in interference connection with the gear ring 100 in the same way, the integral installation of the speed reducing mechanism can be more reliable through the bearing 500 and interference fit thereof, the strength and torque requirements can be borne, the integral strength of the speed reducing mechanism is ensured, and the service life is prolonged.
Referring to fig. 2, the input section 200 in the present embodiment includes an input planet carrier 210, an input planet shaft 220, an input planet gear 230 and a drive gear 240, the drive gear 240 is connected with a rotating shaft of the driving device, the input planet shaft 220 is mounted on the input planet carrier 210, the input planet gear 230 is mounted on the input planet shaft 220 and is meshed with the internal teeth 110 of the drive gear 240 and the ring gear 100, respectively, the transmission section 300 includes a transmission planet carrier 310, a transmission planet shaft 320, a transmission planet gear 330 and a transmission sun gear 340, the transmission sun gear 340 is connected with the input planet carrier 210, the transmission planet shaft 320 is mounted on the transmission planet carrier 310, the transmission planet gear 330 is mounted on the transmission planet shaft 320 and is meshed with the transmission sun gear 340 and the internal teeth 110 of the ring gear 100, respectively, the output section 400 includes an output shaft sub-carrier 410, an output planet shaft 420, an output planet gear 430 and an output sun gear 440, the output sun gear 440 is connected with the transmission planet carrier 310, the output planet shaft 420 is mounted on the output sub-carrier 410, and is mounted on the output planet gear 430 and is meshed with the internal teeth 110 of the output sun gear 440 and 100, respectively.
When the reduction mechanism operates, the rotation shaft of the driving device drives the driving gear 240 to rotate, and when the driving gear 240 rotates, the driving gear 240 drives the input planetary gear 230 meshed with the driving gear 240 to rotate, and the input planetary gear 230 rotates along the internal teeth 110 and drives the input planetary carrier 210 to rotate, when the input planetary carrier rotates 210, the driving sun gear 340 connected with the input planetary gear rotates, when the driving sun gear 340 rotates, the driving planetary gear 330 rotates along the internal teeth 110 and drives the driving planetary carrier 310 to rotate, when the driving planetary carrier 310 rotates, the driving planetary carrier 310 rotates with the output sun gear 440 connected with the driving planetary carrier, the output planetary gear 430 drives the output planetary carrier 410 to rotate, and the output shaft carrier 410 drives the roller connected with the output planetary carrier to rotate, so that three-stage reduction is formed by the input section 200, the driving section 300 and the output section 400, the purpose of reducing the speed is achieved, and the rotation of the roller is achieved.
The transmission planet carrier 310 and the input planet carrier 210 are all in sheet metal structures and are formed by a thick plate stamping process, and the transmission sun gear 340 and the input planet carrier 210 and the output sun gear 440 and the transmission planet carrier 310 are all in interference connection through special shafts, so that the problem of torsion and loosening can be solved, and the overall firmness of the speed reducing mechanism is improved.
Meanwhile, the output planetary gear 430 and the transmission planetary gear 330 are carbon steel high-hardness gears, so that the whole speed reducing mechanism can achieve higher strength, and the input planetary gear 230 can be made of materials according to different application requirements, such as: plastic materials, powder sintering materials, copper materials, carbon steel and the like, and the following needs to be described: each gear in the speed reducing mechanism adopts an involute tooth shape, so that the single-stage transmission efficiency can reach more than 95%, the gear pressure angle is between 12.5 and 14.5 degrees, of course, a fixed value can be regulated according to the requirement of the application, the gear tooth top is subjected to round angle trimming, the round angle dimension Ra=0.3 Mn, and Mn is the normal modulus of the gear; tooth profile parameter requirements: the tooth top gap coefficient C * =0.35, the tooth top height coefficient ha * =0.85, the tooth bottom arc rb=0.5 Mn.
Of course, in order to facilitate the installation of the bearing 500, the output shaft support 410 of the output section 400 has an extension end 411, the extension end 411 is used for being connected with a roller, the inner ring of the bearing 500 is sleeved on the extension end 411 and is in interference fit with the extension end 411, meanwhile, the end of the gear ring 100 is provided with a groove 120, the outer ring of the bearing 500 is arranged at the groove 120 and is in interference fit with the side wall of the groove 120, and the bearing 500 is in interference fit with the output shaft support 410 and the gear ring 100 respectively, so that the installation of the speed reducing mechanism is more reliable and can bear the strength torque requirement.
Meanwhile, referring to fig. 5, a gap 121 is formed at the front end of the groove 120, and a high-strength anaerobic retaining glue is filled in the gap 121, so that the high-strength anaerobic retaining glue can fully function through the gap 121, and the bearing 500 and the gear ring 100 can be more firmly connected through the high-strength anaerobic retaining glue, thereby ensuring the overall strength of the speed reducing mechanism.
Referring to fig. 2, in order to reduce noise generated when the reduction mechanism operates, gear spacers 600 are disposed between the input section 200 and the driving device, between the transmission section 300 and the input section 200, and between the output section 400 and the transmission section 300, wherein the gear spacers 600 may be made of 65Mn, SUS304, and graphite nylon materials, and abnormal noise generated by friction between each planetary gear and each planet carrier may be reduced by the gear spacers 600.
Finally, referring to fig. 6, in order to reduce noise of the reduction gear, the internal teeth 110 engaged with the input section 200 may have a split type structure and form the split type internal teeth 111, while the internal teeth 110 engaged with the transmission section 300 and the output section 400 may have an integral structure with the ring gear 100, and in order to connect the split type internal teeth 111 with the ring gear 100, the outer wall of the split type internal teeth 111 is provided with protrusions 111a, and the inner wall of the ring gear 100 is provided with keyways (not shown) corresponding to the protrusions 111a, and the protrusions 111a are placed in the keyways, so that the split type internal teeth 111 and the ring gear 100 may be positioned and connected in a matched manner, and a radial torsion force may be maintained.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. Those skilled in the art can practice the utility model smoothly as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.
Claims (10)
1. A miniature roller speed reducing mechanism is characterized in that: the device comprises a gear ring, and an input section, a transmission section and an output section which are arranged in the gear ring and are sequentially connected, wherein the input section is connected with a driving device, the output section is connected with a roller, internal teeth meshed with the input section, the transmission section and the output section are arranged in the gear ring, a bearing is arranged between the output section and the gear ring, an inner ring of the bearing is connected with the output section, and an outer ring of the bearing is connected with the gear ring;
the driving device drives the input section to rotate along the internal teeth of the gear ring, and sequentially drives the transmission section and the output section to rotate along the internal teeth of the gear ring, so that the roller connected with the output section rotates.
2. The micro drum reduction mechanism according to claim 1, wherein: the input section comprises an input planet carrier, an input planet shaft, an input planet gear and a driving gear, wherein the driving gear is connected with a rotating shaft of the driving device, the input planet shaft is arranged on the input planet carrier, and the input planet gear is arranged on the input planet shaft and is respectively meshed with the driving gear and the internal teeth of the gear ring.
3. The micro drum reduction mechanism according to claim 2, wherein: the transmission section comprises a transmission planet carrier, a transmission planet shaft, a transmission planet gear and a transmission sun gear, wherein the transmission sun gear is connected with the input planet carrier, the transmission planet shaft is arranged on the transmission planet carrier, and the transmission planet gear is arranged on the transmission planet shaft and meshed with the transmission sun gear and the internal teeth of the gear ring respectively.
4. A micro-drum deceleration mechanism according to claim 3, wherein: the output section comprises an output shaft auxiliary support, an output planet shaft, an output planet gear and an output sun gear, the output sun gear is connected with the transmission planet carrier, the output planet shaft is arranged on the output shaft auxiliary support, and the output planet gear is arranged on the output planet shaft and meshed with the internal teeth of the output sun gear and the internal teeth of the gear ring respectively.
5. The micro drum speed reducing mechanism according to claim 4, wherein: the output shaft attaches the support and has extending end, and extending end is used for being connected with the roller, and the inner snare of bearing is established on extending end to with extending end interference fit.
6. The micro drum reduction mechanism according to claim 1, wherein: the gear ring is characterized in that a groove is formed in one end of the gear ring, an outer ring of the bearing is arranged at the groove and in interference fit with the side wall of the groove, a gap is formed at the front end of the groove, and high-strength anaerobic retaining glue is filled at the gap.
7. The micro drum reduction mechanism according to claim 1, wherein: and gear spacers are arranged between the input section and the driving device, between the transmission section and the input section and between the output section and the transmission section.
8. The micro drum reduction mechanism according to claim 1, wherein: the internal teeth meshed with the input section are of split type structures, split type internal teeth are formed, protrusions are arranged on the outer walls of the split type internal teeth, key grooves corresponding to the protrusions are formed in the inner walls of the gear rings, the protrusions are arranged in the key grooves, the split type internal teeth are connected with the gear rings, and the split type internal teeth are made of plastic materials.
9. The micro drum speed reducing mechanism according to claim 4, wherein: the transmission sun gear is in interference connection with the input planet carrier, and the output sun gear is in interference connection with the transmission planet carrier.
10. The micro drum reduction mechanism according to claim 1, wherein: the gear ring is manufactured by adopting a carbon steel machining or powder metallurgy forming process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322851865.6U CN220816439U (en) | 2023-10-24 | 2023-10-24 | Miniature roller speed reducing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322851865.6U CN220816439U (en) | 2023-10-24 | 2023-10-24 | Miniature roller speed reducing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816439U true CN220816439U (en) | 2024-04-19 |
Family
ID=90699347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322851865.6U Active CN220816439U (en) | 2023-10-24 | 2023-10-24 | Miniature roller speed reducing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816439U (en) |
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2023
- 2023-10-24 CN CN202322851865.6U patent/CN220816439U/en active Active
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