CN210890011U - Free planetary transmission mechanism and double planetary reduction gearbox of meat grinder - Google Patents
Free planetary transmission mechanism and double planetary reduction gearbox of meat grinder Download PDFInfo
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- CN210890011U CN210890011U CN201920497872.1U CN201920497872U CN210890011U CN 210890011 U CN210890011 U CN 210890011U CN 201920497872 U CN201920497872 U CN 201920497872U CN 210890011 U CN210890011 U CN 210890011U
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Abstract
The utility model discloses a dual planetary reduction gear box of free planetary drive mechanism and meat grinder, by the two-stage sun gear, two-stage planet wheel and two-stage planet carrier are constituteed, the same ring gear of the common centrifugal meshing of two-stage planet wheel, the two-stage planet wheel of ring gear altogether, it is rotatory to make one-level planet wheel can produce the axial suspension under high-speed centrifugal rotation, can not mutual interference between the two-stage reduction gear, it is more smooth and easy to do benefit to power transmission, it is balanced, each part atress of the transmission of the dual planetary reduction gear box of meat grinder is evenly difficult damaged, long service life, compact structure furthest saves space, be favorable to compressing the volume of meat grinder, make the meat grinder more light and handy, appearance design is more friendly, accord with the miniaturized requirement that family's.
Description
Technical Field
The utility model belongs to mechanical transmission part specifically relates to a planetary drive mechanism and be applied to meat grinder decelerator thereof.
Background
The meat grinder is used for processing meat raw materials into granular meat stuffing with different specifications according to different process requirements, and is widely applicable to industries of various sausages, ham sausages, luncheon meat, balls, other meat products and the like. Along with the improvement of living standard of people, many household meat mincer are in operation.
However, many meat mincer directly drive the spiral propeller through the motor and drive the cross knife to rotate, or simply fix a gear on the motor shaft, and fix another gear at the outer end of the spiral propeller, and drive through the engagement of two gears, the fixed shaft type gear transmission mechanism has the advantages that the force transmission is completed on a single tooth, the stress is concentrated on the single tooth, the gear is easy to damage, the centrifugal force generated by the rotation of the gear makes the lubricating oil separate from the tooth surface to cause poor lubrication, and overlarge vibration and noise are generated in the meat mincing process.
The meat grinder realizes the first-stage speed reduction of the motor through a belt and a pair of belt pulleys, the power of the motor is transmitted to the power input end of the gear box, and then the speed reduction is carried out again through the gear box transmission system, so that the purposes of rotating speed and power needed by the product during working are realized, and the transmission speed reduction mode of the driving speed change mechanism has the following defects: 1. the manufacturing and processing precision of the belt is limited by the industry level, the assembly error exists between the belt and the belt pulley, and the assembly error exists between the belt pulley and the motor shaft, and the accumulation of the processing precision error and the assembly error can cause the large tooth-shaped meshing error between the belt and the belt pulley, so that the transmission noise of the belt and the belt pulley is large when the product works, and the noise of the whole machine is increased; 2. the assembly process of the belt pulley and the motor shaft and the assembly process of the belt and the belt pulley are complex, the assembly efficiency is low, and the tension of the belt needs to be checked after the belt and the belt pulley are assembled by each machine, so that the assembly cost is increased, and the product cost is increased; 3. the belt is worn and torn very fast in transmission process, especially when belt and belt pulley assembly error are great, can accelerate the wearing and tearing of belt, and noise at work grow when can lead to belt transmission after the belt wearing and tearing, influences complete machine transmission system's life-span simultaneously.
More there is the drive mechanism of meat grinder to use multistage transmission subassembly to form fast and slow rotation, thereby the power of two kinds of different rotational speeds of output, every stage of drive assembly does not all but contains worm gear integrated configuration, still contains bevel gear integrated configuration, the transmission of this kind of multistage parallel shaft transmission system is complicated, it is huge to make the whole machine space that occupies after the transmission structure equipment, the model need design into L type, the C type, the machine appearance seems heavy, the outward appearance lacks the friendship and is friendly, also portable, does not accord with consumer's use custom.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a transmission structure retrencies, the noise is little, the big free planetary gear mechanism of transmission torque and the double planetary reduction box of meat grinder.
In order to solve the technical problem, the utility model discloses a technical scheme be: a free planetary transmission mechanism comprises at least two stages of sun gears, two stages of planet gears and two stages of planet carriers, wherein the two stages of planet gears are in centrifugal engagement with the same gear ring.
Furthermore, the primary sun gear inputs power and is meshed with and drives the primary planet gear, the primary planet gear revolves along the gear ring in a centrifugal mode, the primary planet gear transmits power through the primary planet carrier, the primary planet carrier coaxially drives the secondary sun gear, the secondary sun gear transmits power and is meshed with and drives the secondary planet gear, the secondary planet gear revolves along the gear ring in a centrifugal mode, and the secondary planet gear outputs power through the secondary planet carrier.
Further, the planet wheel is composed of three gears.
Furthermore, the planet carrier is evenly provided with three pin shafts, and the pin shafts are provided with gears.
Further, an oil groove is formed in the root of the pin shaft of the planet carrier.
Further, second grade planet carrier includes the axis body, and the tip of axis body is provided with spline structure.
The utility model discloses another technical scheme do: the double planetary reduction gearbox of the meat grinder comprises a front cover and a rear cover, wherein at least two stages of sun gears, two stages of planet gears and two stages of planet carriers are packaged in the front cover and the rear cover, and the two stages of planet gears are in centrifugal engagement with the same gear ring.
Furthermore, the primary sun gear inputs power and is meshed with and drives the primary planet gear, the primary planet gear revolves along the gear ring in a centrifugal mode, the primary planet gear transmits power through the primary planet carrier, the primary planet carrier coaxially drives the secondary sun gear, the secondary sun gear transmits power and is meshed with and drives the secondary planet gear, the secondary planet gear revolves along the gear ring in a centrifugal mode, and the secondary planet gear outputs power through the secondary planet carrier.
Further, second grade planet carrier includes the axis body, and the tip of axis body is provided with spline structure.
Further, the two-stage planetary carriers are respectively provided with baffle plates.
Implement above-mentioned technical scheme, through the two-stage planet wheel of designing the ring gear altogether, make one-level planet wheel can produce the axial suspension rotation under high-speed centrifugal rotation, can not mutual interference between the two-stage reduction gearing, do benefit to more smooth and easy, the equilibrium of power transmission. The free planetary transmission mechanism is applied to the reduction gearbox of the meat grinder, all the transmission parts are stressed uniformly and are not easy to damage, the service life is long, the space is saved to the maximum extent due to the compact structure, the size of the meat grinder is favorably compressed, the meat grinder is lighter and has more friendly appearance design, and the miniaturization requirement of household kitchen art equipment is met.
Drawings
FIG. 1 is a schematic structural view of a double planetary reduction gearbox of a meat grinder.
Fig. 2 is a schematic structural diagram of the carrier.
Fig. 3 is a schematic diagram of a free planetary transmission.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. And the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
As shown in figure 1, the double planetary reduction gearbox of the meat grinder mainly comprises a front cover 1, a rear cover 4 and a free planetary transmission mechanism. The interior of the front cover 1 and the back cover 4 encloses a free planetary transmission for decelerating the output power of the motor to suit the required operating speed of the meat grinder.
The free planetary mechanism is composed of an input sun gear 9, an output sun gear 10, a primary planet gear 3, a secondary planet gear 8, a gear ring 2, a planet carrier 6 and a planet disk 7. The input sun gear 9 is driven by a motor, the input sun gear 9 is meshed with and drives the first-stage planet gear 3, the first-stage planet gear 3 is composed of three gears, and each gear is uniformly arranged on the planet disk 7 through a pin shaft. The centre of a circle of the planetary disk 7 is provided with an output sun gear 10, the output sun gear 10 is engaged with and drives a secondary planet gear 8, the secondary planet gear 8 is composed of three gears, and the secondary planet gear 8 is arranged on the planetary carrier 6. The primary planet wheel 3 and the secondary planet wheel 8 are also meshed with the gear ring 2, the gear ring 2 is internally fixed in the front cover 1, and the primary planet wheel 3 and the secondary planet wheel 8 freely and centrifugally walk along the inner wall of the gear ring 2. The diameters and the tooth numbers of the input sun gear and the output sun gear are the same, and the diameters and the tooth numbers of the two-stage planet gears are also the same. The number of teeth of the two-stage planet wheel is three, so that the transmission stress is better, and large torque can be transmitted. The planet carrier 6 and the planet disk 7 are respectively provided with a baffle 5 which is used for limiting the planet wheel to fall off so as to prevent the free planet mechanism from generating a jamming phenomenon.
As shown in fig. 2, the planet carrier 6 is composed of a disk body 6.1, pin shafts 6.2 and a shaft body 6.3, three pin shafts 6.2 are uniformly arranged on the side surface of the disk body 6.1, and the pin shafts 6.2 are correspondingly provided with gears of the secondary planet gears 8. The end part of the shaft body 6.3 is provided with a spline shaft 6.4 which is inserted into a spline groove of a meat-grinding spiral shaft of the meat grinder through the spline shaft 6.4 so as to drive the spiral shaft to rotate.
An oil groove is formed in the root of the pin shaft of the planetary plate 7, so that the oil storage function is realized, the first-stage planetary wheel rotates more smoothly, the transmission friction is reduced, and the suspension rotation is favorably generated. An oil groove is formed in the root of a pin shaft 6.2 of the planet carrier 6, so that the secondary planet wheel rotates more smoothly, transmission friction is reduced, and output power is guaranteed.
Referring to fig. 3, the operating principle of the free planetary mechanism is: the motor drives the input sun gear 9 to rotate, the input sun gear 9 is meshed with the first-stage planet gear 3, three gears of the first-stage planet gear 3 are meshed with the gear ring 2, the output sun gear 10 is embedded on the planet disk 7 and drives the first-stage planet gear 3 to suspend the rotary box on the gear ring 2 to complete first-stage speed reduction. Similarly, the output sun gear 10 rotates, the output sun gear 10 is meshed with the secondary planet gear 8, three gears of the secondary planet gear 8 are meshed with the gear ring 2, and the planet carrier 6 with the secondary planet gear 8 rotates in the gear ring 2 to complete secondary speed reduction.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. A free planetary transmission mechanism is characterized in that: the planetary gear set comprises at least two stages of sun gears, two stages of planet gears and two stages of planet carriers, wherein the two stages of planet gears are jointly and centrifugally meshed with the same gear ring; the primary sun gear inputs power and is meshed with and drives the primary planet gear, the primary planet gear revolves along the gear ring in a centrifugal mode, the primary planet gear transmits the power through the primary planet carrier, the primary planet carrier coaxially drives the secondary sun gear, the secondary sun gear transmits the power and is meshed with and drives the secondary planet gear, the secondary planet gear revolves along the gear ring in a centrifugal mode, and the secondary planet gear outputs the power through the secondary planet carrier; the planet gear is composed of three gears, the planet carrier is uniformly provided with three pin shafts, and the pin shafts are provided with the gears; the oil groove is formed in the root of the pin shaft of the planet carrier, and the oil groove is formed in the root of the pin shaft of the planet disk.
2. The free planetary transmission according to claim 1, wherein the secondary planet carrier comprises a shaft body, the end of which is provided with a spline structure.
3. The utility model provides a dual planet reducing gear box of meat grinder, includes protecgulum and hou gai, its characterized in that: at least two stages of sun wheels, two stages of planet wheels and two stages of planet carriers are packaged in the front cover and the rear cover, and the two stages of planet wheels are jointly and centrifugally meshed with the same gear ring; the primary sun gear inputs power and is meshed with and drives the primary planet gear, the primary planet gear revolves along the gear ring in a centrifugal mode, the primary planet gear transmits the power through the primary planet carrier, the primary planet carrier coaxially drives the secondary sun gear, the secondary sun gear transmits the power and is meshed with and drives the secondary planet gear, the secondary planet gear revolves along the gear ring in a centrifugal mode, and the secondary planet gear outputs the power through the secondary planet carrier; the oil groove is formed in the root of the pin shaft of the planet carrier, and the oil groove is formed in the root of the pin shaft of the planet disk.
4. The double planetary reduction gearbox of a meat grinder according to claim 3, wherein the secondary planet carrier comprises a shaft body, and a spline structure is arranged at the end of the shaft body.
5. The double planetary reduction gearbox of a meat grinder as claimed in claim 4, wherein the two-stage planet carriers are each fitted with a baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920497872.1U CN210890011U (en) | 2019-04-13 | 2019-04-13 | Free planetary transmission mechanism and double planetary reduction gearbox of meat grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920497872.1U CN210890011U (en) | 2019-04-13 | 2019-04-13 | Free planetary transmission mechanism and double planetary reduction gearbox of meat grinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210890011U true CN210890011U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920497872.1U Active CN210890011U (en) | 2019-04-13 | 2019-04-13 | Free planetary transmission mechanism and double planetary reduction gearbox of meat grinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210890011U (en) |
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2019
- 2019-04-13 CN CN201920497872.1U patent/CN210890011U/en active Active
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