CN113187871B - Planet wheel speed reducer with output shaft capable of linearly reciprocating - Google Patents
Planet wheel speed reducer with output shaft capable of linearly reciprocating Download PDFInfo
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- CN113187871B CN113187871B CN202110398110.8A CN202110398110A CN113187871B CN 113187871 B CN113187871 B CN 113187871B CN 202110398110 A CN202110398110 A CN 202110398110A CN 113187871 B CN113187871 B CN 113187871B
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- gear
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- output shaft
- end cover
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02091—Measures for reducing weight of gearbox
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to the technical field of mechanical reducers, and relates to a planetary gear reducer with an output shaft capable of linearly reciprocating and application thereof. Go up casing and lower casing fixed connection, frame and lower casing fixed connection go up the casing and install the input shaft be provided with the gear on the input shaft, gear engagement is connected with gear drum the upper and lower part of gear drum is provided with the mounting hole, just the axis of mounting hole is parallel with gear drum's axis, two be provided with the planet axle in the mounting hole jointly, the middle part key connection of planet axle has planetary gear, planetary gear engagement is connected with the internal gear, the internal gear is fixed in the frame, the planet axle upper end is passed No. two end covers and is provided with the connecting block the upper surface off-centre of connecting block is provided with the output shaft. The planet wheel speed reducer has the advantages of compact structure, low manufacturing cost and high transmission efficiency, shortens a transmission chain, improves the efficiency and meets the requirements of linear reciprocating motion in different application scenes.
Description
Technical Field
The invention belongs to the technical field of mechanical reducers, and relates to a planetary gear reducer with an output shaft capable of linearly reciprocating.
Background
The planet wheel speed reducer has the advantages of small volume, high transmission efficiency, wide speed reduction range, high precision and the like, is widely applied to transmission systems of metallurgical machinery, engineering machinery, chemical machinery, textile machinery and the like, and has the effect of mainly reducing the rotating speed, increasing the torque and reducing the rotational inertia ratio of a load/a motor on the premise of ensuring the precision transmission so as to realize the rotary motion of a corresponding mechanical part. The main transmission structure of the planet gear speed reducer comprises parts such as a planet gear, a sun gear, an inner gear ring, a planet carrier and the like. With the rapid development of national economy, the application demand of the planetary reducer is more and more extensive, and more requirements are put forward on the motion form of an output shaft of the planetary reducer, such as the realization of the linear reciprocating motion of the output shaft. And adopt traditional rotation planet wheel reduction gear structural style, need increase middle conversion equipment when the drive corresponds equipment rectilinear motion, increased the cost input, have certain limitation, consequently urgently need a kind of planet wheel reduction gear that can realize high-speed steady rectilinear reciprocating motion.
Disclosure of Invention
The invention provides a planet wheel speed reducer with an output shaft capable of linearly reciprocating.
In order to achieve the purpose, the invention adopts the following technical scheme:
a planet gear reducer with an output shaft capable of linearly reciprocating comprises an upper shell, a lower shell and a base, wherein the upper shell, the lower shell and the base are sequentially and fixedly connected together, an input shaft is mounted on the upper shell, a gear is arranged on the input shaft, a gear roller is connected in a gear meshing manner, mounting holes corresponding to each other are formed in the upper portion and the lower portion of the gear roller, the axis of each mounting hole is parallel to the axis of the gear roller, a planet shaft is jointly arranged in the two mounting holes, a planet gear is connected to the middle key of the planet shaft in a meshing manner, an inner gear is connected in a meshing manner and clamped manner on the base through a clamping ring, the radius of a planet gear reference circle is equal to the distance between the central line of the planet shaft and the central line of the gear roller, a connecting block is arranged at the upper end of the planet shaft, and the output shaft is eccentrically arranged on the upper surface of the connecting block, when the speed reducer is in an initial installation position, the central line of the output shaft is superposed with the central line of the gear roller.
Further, a speed change gear is arranged between the gear and the gear roller and used for adjusting the walking speed of the output shaft.
And furthermore, a balancing weight is arranged at the lower end of the planet shaft and used for offsetting inertia generated by sudden start and sudden stop of the reciprocating motion limit position of the driving object.
Furthermore, a balancing weight is installed on one side of the output shaft, and the planet shaft and the balancing weight installed on the output shaft are located on the same side and used for offsetting inertia generated by sudden start and sudden stop of the reciprocating motion limit position of the driving object.
Further, there is No. three end covers at gear drum's lower extreme through bolt fixed mounting, No. three end covers are passed to the lower extreme of planet axle, just the lower terminal surface of planet axle is connected with spacing end cover all be provided with tapered roller bearing between gear drum and the last casing and between No. three end covers and the frame No. four end covers through bolt fixed connection on the frame, No. four end covers, frame and No. three end cover cooperation realize jointly spacing to tapered roller bearing between No. three end covers and the frame, the up end of going up the casing has an end cover through bolted connection No. two end covers through bolt fixed connection the up end of gear drum, No. one end cover, last casing and No. two end cover cooperations realize jointly spacing to tapered roller bearing between gear drum and the last casing.
Furthermore, a labyrinth seal structure is arranged between the first end cover and the second end cover, and a seal groove is arranged in the labyrinth seal structure and used for preventing other objects from entering the inside of the speed reducer and reducing abrasion to the gear of the speed reducer.
Further, the upper portion cover of planet axle is equipped with a self-aligning roller bearing the lower part cover of planet axle is equipped with two self-aligning roller bearings, just self-aligning roller bearing installs in the mounting hole, it is three self-aligning roller bearing's outer lane all with gear drum's internal surface contact, through self-aligning roller bearing realizes spacing to the planet axle all install the sleeve between the self-aligning roller bearing of lower part on planet gear and the planet axle to the realization is to planetary gear and self-aligning roller bearing's axial fixity.
Furthermore, the device is applied to devices with all working paths in linear reciprocating motion.
Compared with the prior art, the invention has the following advantages:
1. the invention has reasonable design and compact structure, improves the transmission power, reduces the relative quality of the reducer, has low manufacturing cost, high reliability and high transmission efficiency, can directly output an output shaft to equipment, saves an intermediate conversion device, can directly realize high-speed stable linear reciprocating motion of the equipment, shortens a transmission chain and simplifies and compacts the structure of the whole system;
2. on the basis that the central line of the output shaft is concentric with the central line of the sleeve and the central line of the planet shaft is eccentric with the central line of the sleeve, the output shaft can linearly move in a large range, and the walking amount of the linear movement is 4 times of the eccentric amount;
3. the invention can realize the modes of horizontal linear motion and vertical linear motion and meet the requirements of reciprocating linear motion in different application scenes.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion of the seal slot circled A in FIG. 1 in accordance with the present invention;
in the figure, 1-an upper shell, 2-a lower shell, 3-a machine base, 4-an input shaft, 5-a first end cover, 6-a gear roller, 7-a connecting block, 8-a third end cover, 9-a tapered roller bearing, 10-a fourth end cover, 11-a second end cover, 12-a planet shaft, 13-a limiting end cover, 14-a self-aligning roller bearing, 15-a planet gear, 16-an internal gear, 17-a snap ring, 18-an output shaft, 19-a speed change gear, 20-a balancing weight, 21-a sealing groove, 22-a sleeve and 23-a gear.
Detailed Description
In order to further illustrate the technical solution of the present invention, the present invention is further illustrated by the following examples.
As shown in fig. 1, a planetary reducer with an output shaft capable of linearly reciprocating comprises an upper casing 1, a lower casing 2 and a base 3, wherein the upper casing 1, the lower casing 2 and the base 3 are sequentially and fixedly connected together, an input shaft 4 is installed on the upper casing 1, a gear 23 is arranged on the input shaft 4, the gear 23 is in meshing connection with a gear drum 6, a speed change gear 19 is arranged between the gear 23 and the gear drum 6 and used for adjusting the traveling speed of the output shaft 18, a third end cover 8 is fixedly installed at the lower end of the gear drum 6 through a bolt, tapered roller bearings 9 are respectively arranged between the gear drum 6 and the upper casing 1 and between the third end cover 8 and the base 3, a fourth end cover 10 is fixedly connected to the base 3 through a bolt, and the fourth end cover 10, the base 3 and the third end cover 8 are matched to jointly limit the tapered roller bearings 9 between the third end cover 8 and the base 3, the upper end face of the upper shell 1 is connected with a first end cover 5 through a bolt, the upper end face of the gear roller 6 is fixedly connected with a second end cover 11 through a bolt, the first end cover 5, the upper shell 1 and the second end cover 11 are matched to limit a tapered roller bearing 9 between the gear roller 6 and the upper shell 1 together, a labyrinth seal structure 21 is arranged between the first end cover 5 and the second end cover 11, a seal groove is arranged in the labyrinth seal structure 21 and used for preventing other objects from entering the interior of a speed reducer and reducing abrasion to a gear of the speed reducer, corresponding mounting holes are arranged at the upper part and the lower part of the gear roller 6, the axis of each mounting hole is parallel to the axis of the gear roller 6, a planet shaft 12 is arranged in two mounting holes together, and the lower end of the planet shaft 12 passes through the third end cover 8, and the lower terminal surface of the planet axle 12 is connected with a limit end cover 13, the upper part of the planet axle 12 is sleeved with a self-aligning roller bearing 14, the lower part of the planet axle 12 is sleeved with two self-aligning roller bearings 14, the self-aligning roller bearings 14 are installed in the installation holes, the outer rings of the three self-aligning roller bearings 14 are all in contact with the inner surface of the gear roller 6, the limit of the planet axle 12 is realized through the self-aligning roller bearings 14, the middle part of the planet axle 12 is connected with a planet gear 15 through a key, a sleeve 22 is installed between the planet gear 15 and the self-aligning roller bearings 14 at the upper and lower parts of the planet axle 12 so as to realize the axial fixation of the planet gear 15 and the self-aligning roller bearings, the planet gear 15 is engaged and connected with an internal gear 16, the internal gear 16 is fixedly clamped on the machine base 3 through a clamping ring 17, the reference circle radius of the planet gear 15 is equal to the distance between the central line of the planet axle 12 and the central line of the gear roller, the upper end of the planet shaft 12 penetrates through the second end cover 11 to be provided with a connecting block 7, an output shaft 18 is eccentrically arranged on the upper surface of the connecting block 7, when the speed reducer is initially installed at a position, the central line of the output shaft 18 is superposed with the central line of the gear roller 6, a balancing weight 20 is installed at the lower end of the planet shaft 12, the balancing weight 20 is installed on one side of the output shaft 18, and the planet shaft 12 and the balancing weight 20 installed on the output shaft 18 are located on the same side and used for offsetting inertia generated by sudden start and sudden stop of the reciprocating motion limit position of a driving object.
The planet wheel speed reducer can be applied to all devices with linear reciprocating motion working paths.
While there have been shown and described what are at present considered to be the essential features and advantages of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a but planet wheel reduction gear of straight reciprocating motion of output shaft which characterized in that: including last casing (1), casing (2) and frame (3) down, go up casing (1), casing (2) and frame (3) fixed connection in proper order be in the same place install input shaft (4) on going up casing (1) be provided with gear (23) on input shaft (4), gear (23) meshing is connected with gear drum (6) the upper and lower portion of gear drum (6) is provided with the mounting hole that corresponds each other, just the axis of mounting hole is parallel with the axis of gear drum (6), two be provided with planet axle (12) in the mounting hole jointly, the middle part key connection of planet axle (12) has planetary gear (15), planetary gear (15) meshing is connected with internal gear (16), internal gear (16) clamp and fix on frame (3) through snap ring (17), planet gear (15) reference circle's radius and the radius of planet axle central line and gear drum (6) between the central line The distances are equal, a connecting block (7) is arranged at the upper end of the planet shaft (12), an output shaft (18) is eccentrically arranged on the upper surface of the connecting block (7), and when the speed reducer is in an initial installation position, the central line of the output shaft (18) is superposed with the central line of the gear roller (6).
2. The planetary reducer with the output shaft capable of linearly reciprocating according to claim 1, wherein: a speed change gear (19) is arranged between the gear (23) and the gear roller (6) and is used for adjusting the running speed of the output shaft (18).
3. The planetary reducer with the output shaft capable of linearly reciprocating according to claim 1, wherein: and a balancing weight (20) is arranged at the lower end of the planet shaft (12) and is used for offsetting inertia generated by sudden start and sudden stop of the reciprocating motion limit position of the driving object.
4. The planetary reducer with the output shaft capable of linearly reciprocating according to claim 3, wherein: and a balancing weight (20) is arranged on one side of the output shaft (18), and the planet shaft (12) and the balancing weight (20) arranged on the output shaft (18) are positioned on the same side and used for offsetting inertia generated by sudden start and sudden stop of the reciprocating motion limit position of a driving object.
5. The planetary reducer with the output shaft capable of linearly reciprocating according to claim 1, wherein: a third end cover (8) is fixedly arranged at the lower end of the gear roller (6) through bolts, the lower end of the planet shaft (12) penetrates through the third end cover (8), a limiting end cover (13) is connected to the lower end face of the planet shaft (12), tapered roller bearings (9) are arranged between the gear roller (6) and the upper shell (1) and between the third end cover (8) and the machine base (3), a fourth end cover (10) is fixedly connected to the machine base (3) through bolts, the fourth end cover (10), the machine base (3) and the third end cover (8) are matched to limit the tapered roller bearings (9) between the third end cover (8) and the machine base (3), a first end cover (5) is connected to the upper end face of the upper shell (1) through bolts, a second end cover (11) is fixedly connected to the upper end face of the gear roller (6) through bolts, the first end cover (5), the upper shell (1) and the second end cover (11) are matched to limit a tapered roller bearing (9) between the gear roller (6) and the upper shell (1).
6. The planetary reducer with the output shaft capable of linearly reciprocating according to claim 5, wherein: a labyrinth seal structure (21) is arranged between the first end cover (5) and the second end cover (11), a seal groove is formed in the labyrinth seal structure (21) and used for preventing other objects from entering the inside of the speed reducer and reducing abrasion to the gear of the speed reducer.
7. The planetary reducer with the output shaft capable of linearly reciprocating according to claim 1, wherein: the upper portion cover of planet axle (12) is equipped with a self-aligning roller bearing (14) the lower part cover of planet axle (12) is equipped with two self-aligning roller bearing (14), just self-aligning roller bearing (14) are installed in the mounting hole, it is three the outer lane of self-aligning roller bearing (14) all with the internal surface contact of gear drum (6), through self-aligning roller bearing (14) realize spacing to planet axle (12) sleeve (22) are all installed between self-aligning roller bearing (14) of lower part on planet gear (15) and planet axle (12) to the realization is to the axial fixity of planet gear (15) and self-aligning roller bearing (14).
8. The planetary reducer with the output shaft capable of linearly reciprocating according to any one of claims 1 to 7, wherein: the device is applied to all devices with linear reciprocating motion working paths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110398110.8A CN113187871B (en) | 2021-04-14 | 2021-04-14 | Planet wheel speed reducer with output shaft capable of linearly reciprocating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110398110.8A CN113187871B (en) | 2021-04-14 | 2021-04-14 | Planet wheel speed reducer with output shaft capable of linearly reciprocating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113187871A CN113187871A (en) | 2021-07-30 |
| CN113187871B true CN113187871B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110398110.8A Active CN113187871B (en) | 2021-04-14 | 2021-04-14 | Planet wheel speed reducer with output shaft capable of linearly reciprocating |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1453135A (en) * | 1973-01-23 | 1976-10-20 | Aginfor Ag | Eccentric reduction gear units |
| DE4235697A1 (en) * | 1992-09-23 | 1994-03-24 | Linde Ag | Hydromechanical drive set with incorporated epicyclic gear - which is mounted on journal, whose front side carries control face of hydraulic motor |
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2021
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| CN113187871A (en) | 2021-07-30 |
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