CN217874007U - Planetary cycloidal pin gear speed reducer - Google Patents

Abstract

The utility model relates to a machinery technical field that slows down specifically is a planet cycloid pinwheel speed reducer, which comprises a motor, the motor outside is provided with the pin gear shell, inside cycloid wheel and the eccentric cover of being provided with of pin gear shell, the inside round pin axle piece that is provided with of cycloid wheel, round pin axle piece back of the body mutually with cycloid wheel one end fixedly connected with pivot, the pin gear shell outside is equipped with meshing reduction gears, meshing reduction gears top is equipped with the inner loop cooling mechanism. The utility model discloses a pivot drives first pivot and rotates, because meshing between first pinion and first gear wheel, and first bull gear size is greater than first pinion size, the second pivot, the second pinion is under first gear wheel rotation, its rotational speed is less than first pivot, cooperation second pinion and second gear wheel meshing between, and the bull gear size of second is great, make third pivot rotational speed be less than the second pivot, through meshing between the gear, can further reduce the rotational speed.

Description

Planetary cycloidal pin gear speed reducer

Technical Field

The utility model relates to a mechanical speed reduction technical field specifically is a planet cycloid pinwheel speed reducer.

Background

The cycloidal pin gear speed reducer is a novel transmission device applying a planetary transmission principle and adopting cycloidal pin gear meshing, and all transmission devices of the cycloidal pin gear speed reducer can be divided into three parts: the input shaft is provided with a double eccentric sleeve which is staggered by 180 degrees, the eccentric sleeve is provided with two roller bearings called rotating arms to form an H mechanism, the central holes of two cycloid gears are raceways of the eccentric sleeve upper rotating arm bearings, and the cycloid gears are meshed with a group of annularly arranged needle teeth on a needle gear to form an inner meshing speed reducing mechanism with one tooth difference;

the speed reducer reduces the speed by arranging the pin gear meshing mechanism at the output end of the motor to achieve the purpose of reducing the rotating speed of the output shaft to improve the torque, the torque depends on the running speed to a large extent, the higher the motor speed is, the lower the torque is, the relationship is nonlinear, the reduction speed of the torque is different from the increase speed of the rotating speed, the ratio is greatly changed between different motors and windings, if all other specifications allow, the larger the motor size is, the larger the torque is automatically output, the larger the torque is due to the size of a rotor in a motor shell, the more magnetic flux can be generated, and the larger torque is generated.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a planetary cycloidal pin gear speed reducer, wherein one purpose is to provide a plurality of groups of mechanisms to improve the speed reduction efficiency of equipment and increase the torque capacity, and solve the problem of single speed reduction structure of the cycloidal pin gear; the other purpose is to solve the problem of high-speed friction heat generation of a gear meshing structure between the speed reducers so as to achieve the effect of ensuring long-time running of the speed reducers.

Technical scheme

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a planet cycloid pinwheel speed reducer, including the motor, the motor outside is provided with the pin gear shell, inside cycloid wheel and the eccentric cover of being provided with of pin gear shell, the inside round pin axle spare that is provided with of cycloid wheel, round pin axle spare back of the body and cycloid wheel one end fixedly connected with pivot, the pin gear shell outside is equipped with meshing reduction gears, meshing reduction gears top is equipped with inner loop cooling mechanism, meshing reduction gears is including the cylinder sleeve, cylinder sleeve bottom fixed mounting has the backup pad, be fixed with second meshing piece and third meshing piece on the cylinder sleeve inner wall, the second meshing piece outside is provided with first meshing piece.

Preferably, the first engaging member includes a first rotating shaft fixed to one end of the rotating shaft, a first pinion is fixedly mounted on an outer surface of the first rotating shaft, and the second engaging member includes two sets of positioning members symmetrically arranged.

Preferably, fixed mounting has first connecting rod on the cylinder sleeve inner wall, first connecting rod one side is fixed with first arc, first arc back of the body mutually with first connecting rod one side be fixed with first bearing, movable mounting has the second pivot on the first bearing inner race, be fixed with first gear wheel and second pinion on the second pivot surface.

Preferably, the third engaging member includes a second connecting rod fixed on the inner wall of the cylindrical sleeve, a second arc-shaped plate is fixed on one side of the second connecting rod, a second bearing is fixed on one side of the second arc-shaped plate, a third rotating shaft is movably mounted on the inner ring of one side of the second arc-shaped plate, which is opposite to the second bearing, and a second large gear is fixed on the outer surface of the third rotating shaft.

Preferably, the outer surface of the first pinion is meshed with the outer surface of the first gearwheel, the outer surface of the second pinion is meshed with the outer surface of the second gearwheel, and the central shaft of the third rotating shaft and the central shaft of the first rotating shaft are on the same horizontal line.

Preferably, the quantity of inner loop cooling mechanism is two sets of, including being fixed in the thermal-insulated cover shell at cylinder sleeve top, be fixed with semiconductor refrigeration piece and fan on the thermal-insulated cover shell inner wall, just thermal-insulated cover shell bottom fixed mounting has communicating pipe, be fixed with temperature sensor on the fan surface.

Preferably, two sets of inner loop cooling mechanisms are vertical to be cut along cylinder sleeve in the middle of and are personally submitted the symmetric distribution, the quantity of semiconductor refrigeration piece is three, the quantity of communicating pipe is four, four intercommunication pipes are evenly distributed along thermal-insulated cover shell bottom, just the communicating pipe bottom extends to inside the cylinder sleeve.

Advantageous effects

Compared with the prior art, the utility model provides a planet cycloid pinwheel speed reducer possesses following beneficial effect:

1. through the cooperation between the meshing reduction gears inner structure that sets up, because swing joint between second pivot tip and the first bearing, the pivot drives first pivot and rotates, because meshing between first pinion and first gear wheel, and first bull gear size is greater than first pinion size, the second pivot, the second pinion is under first gear wheel rotation, its rotational speed is less than first pivot, cooperation second pinion and second gear wheel mesh, and the bull gear size of second is great, make the third pivot rotational speed be less than the second pivot, through meshing between the gear, can further reduce the rotational speed.

2. Through the cooperation between the inner loop cooling mechanism inner structure that sets up, utilize four groups communicating pipe to extend to inside the cylinder sleeve for air intercommunication between cylinder sleeve and thermal-insulated casing shell, the condition of generating heat when temperature sensor detects the speed reducer operation, when the heat is higher, control switch-on fan power, produce the air current, the air current carries out the inner loop between cylinder sleeve and thermal-insulated casing shell, utilizes the semiconductor refrigeration piece to cool down the air current simultaneously, promotes the cooling effect to the speed reducer.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the structure of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is an enlarged schematic view of the utility model at A;

FIG. 5 is a schematic perspective view of the meshing reduction mechanism and the internal circulation cooling mechanism of the present invention;

FIG. 6 is a side view of the meshing reduction mechanism and the internal circulation cooling mechanism of the present invention;

fig. 7 is a sectional bottom view of the meshing reduction mechanism of the present invention;

fig. 8 is a perspective sectional view of the meshing reduction mechanism of the present invention;

fig. 9 is a schematic perspective view of the first engaging member, the second engaging member and the third engaging member of the present invention;

FIG. 10 is a perspective view of the internal circulation cooling mechanism of the present invention;

fig. 11 is a perspective sectional view of the internal circulation cooling mechanism of the present invention.

In the figure: 1. a motor; 2. an eccentric sleeve; 3. a pin gear housing; 4. a cycloid wheel; 5. a pin member; 6. a rotating shaft; 7. a meshing reduction mechanism; 71. a cylindrical sleeve; 72. a support plate; 73. a first engaging member; 731. a first rotating shaft; 732. a first pinion gear; 74. a second engaging member; 741. a second rotating shaft; 742. a first bull gear; 743. a second pinion gear; 744. a positioning member; 7441. a first bearing; 7442. a first arc-shaped plate; 7443. a first link; 75. a third engaging member; 751. a second link; 752. a second arc-shaped plate; 753. a second bearing; 754. a third rotating shaft; 755. a second bull gear; 8. an internal circulation cooling mechanism; 81. a heat insulation jacket; 82. a semiconductor refrigerating sheet; 83. a fan; 84. a temperature sensor; 85. a communication pipe is provided.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Fig. 1-11 show an embodiment of the present invention, a planetary cycloidal pin gear speed reducer, comprising a motor 1, a pin gear housing 3 is disposed outside the motor 1, when the device is in use, power is provided by an output shaft which rotates after the motor 1 is powered on, a cycloidal gear 4 and an eccentric sleeve 2 are disposed inside the pin gear housing 3, a pin shaft 5 is disposed inside the cycloidal gear 4, the pin shaft 5 is opposite to one end of the cycloidal gear 4 and is fixedly connected with a rotating shaft 6, when the output shaft of the motor 1 drives the eccentric sleeve 2 to rotate for one revolution, because of the characteristics of a tooth profile curve on the cycloidal gear 4 and the limitation of the pin teeth on the pin gear inside the pin gear housing 3, the motion of the cycloidal gear 4 becomes a planar motion with both revolution and rotation, when the output shaft of the motor 1 rotates for one revolution, the eccentric sleeve 2 also rotates for one revolution, the cycloidal gear 4 rotates for one revolution in the opposite direction to obtain speed reduction, the low-speed rotation motion of the cycloidal gear 4 is transmitted to the rotating shaft 6 through the pin shaft 5, thereby obtaining a lower output rotation speed, a meshing mechanism 7 is provided with a meshing mechanism 7, the top of the meshing mechanism 7 is provided with a cylindrical fixed on the top, a cylindrical sleeve 74, a first connecting rod 7443 fixed on the outer side of a cylindrical sleeve, a first connecting sleeve 74, a cylindrical sleeve 74 fixed on which is provided with a cylindrical sleeve 74, a cylindrical sleeve 7442, a cylindrical connecting rod 7443 fixed on one side, a cylindrical connecting sleeve 71 fixed on the side, a cylindrical connecting rod 7442 fixed on the side fixed on the rotating shaft 74, a cylindrical connecting rod 746, a first bearing 7441 is fixed on one side of the first arc-shaped plate 7442 opposite to the first connecting rod 7443, a second rotating shaft 741 is movably arranged on an inner ring of the first bearing 7441, a first large gear 742 and a second small gear 743 are fixed on the outer surface of the second rotating shaft 741, a third engaging member 75 comprises a second connecting rod 751 fixed on the inner wall of the cylindrical sleeve 71, a second arc-shaped plate 752 is fixed on one side of the second connecting rod 751, a second bearing 753 is fixed on one side of the second arc-shaped plate 752, a third rotating shaft 754 is movably arranged on an inner ring of one side of the second arc-shaped plate 753 opposite to the inner ring of the second bearing 752, a second large gear 755 is fixed on the outer surface of the third rotating shaft 754, the outer surface of the first small gear 732 is engaged with the outer surface of the first large gear 742, because the first small gear 732 is engaged with the first large gear 742, the size of the first large gear 742 is larger than that of the first small gear 732, and the second rotating shaft 741 and the second small gear 743 rotate under the first large gear 742, the rotating speed of the mechanism is less than that of a first rotating shaft 731, the outer surface of a second pinion 743 is meshed with the outer surface of a second gearwheel 755, the central axis of a third rotating shaft 754 and the central axis of the first rotating shaft 731 are on the same horizontal line, because the second pinion 743 is meshed with the second gearwheel 755, and the size of the second gearwheel 755 is large, the rotating speed of the third rotating shaft 754 is less than that of the second rotating shaft 741, through meshing between gears, the size of a rotor in the shell of the motor 1 is fixed and the current is limited, the generated magnetic flux is fixed, the speed is further reduced on the basis of a cycloidal pin wheel speed reducing mechanism, the torque output by the speed reducer is improved, the number of the internal circulation temperature reducing mechanisms 8 is two, wherein the internal circulation temperature reducing mechanism comprises a heat insulation casing 81 fixed at the top of a cylindrical sleeve 71, a semiconductor refrigerating sheet 82 and a fan 83 are fixed on the inner wall of the heat insulation casing 81, and the bottom of the heat insulation casing 81 is fixedly provided with 85, be fixed with temperature sensor 84 on the fan 83 surface, temperature sensor 84 detects the condition of generating heat when the speed reducer moves, when the heat is higher, control switch-on fan 83 power, produce the air current, two sets of inner loop cooling mechanism 8 is followed the middle vertical section of cylindrical sleeve 71 and is personally submitted the symmetric distribution, semiconductor refrigeration piece 82's quantity is three, the quantity of communicating pipe 85 is four, four communicating pipes 85 are along insulating casing 81 bottom and are evenly distributed, and it is inside that communicating pipe 85 bottom extends to cylindrical sleeve 71, utilize four groups of communicating pipes 85 to extend to cylindrical sleeve 71 inside, make air intercommunication between cylindrical sleeve 71 and insulating casing 81, the air current carries out the inner loop between cylindrical sleeve 71 and insulating casing 81, utilize semiconductor refrigeration piece 82 to cool down the air current simultaneously, promote the cooling effect to the speed reducer, ensure the speed reducer operation.

The electrical components in the document are electrically connected with an external master controller and 220V mains supply, and the master controller can be a computer or other conventional known devices for playing a role in control.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a planet cycloid pinwheel speed reducer, including motor (1), motor (1) outside is provided with pin gear shell (3), inside cycloid wheel (4) and eccentric cover (2) of being provided with of pin gear shell (3), inside round pin axle piece (5) that is provided with of cycloid wheel (4), round pin axle piece (5) back of the body and cycloid wheel (4) one end fixedly connected with pivot (6), its characterized in that mutually: a meshing speed reducing mechanism (7) is arranged on the outer side of the pin gear shell (3), and an internal circulation cooling mechanism (8) is arranged at the top of the meshing speed reducing mechanism (7);

the meshing speed reducing mechanism (7) comprises a cylindrical sleeve (71), a supporting plate (72) is fixedly mounted at the bottom of the cylindrical sleeve (71), a second meshing part (74) and a third meshing part (75) are fixed on the inner wall of the cylindrical sleeve (71), and a first meshing part (73) is arranged on the outer side of the second meshing part (74).

2. A planetary cycloidal pin gear reducer as claimed in claim 1 in which: the first meshing part (73) comprises a first rotating shaft (731) fixed at one end of the rotating shaft (6), a first pinion (732) is fixedly installed on the outer surface of the first rotating shaft (731), and the second meshing part (74) comprises two groups of positioning parts (744) which are symmetrically arranged.

3. A planetary cycloidal pin gear reducer according to claim 2 in which: fixed mounting has first connecting rod (7443) on cylinder sleeve (71) inner wall, first connecting rod (7443) one side is fixed with first arc (7442), first arc (7442) carry on the back with first connecting rod (7443) one side and be fixed with first bearing (7441), circle movable mounting has second pivot (741) in first bearing (7441), be fixed with first gear wheel (742) and second pinion (743) on second pivot (741) surface.

4. A planetary cycloidal pin gear reducer as claimed in claim 3, in which: third joggle piece (75) is including being fixed in second connecting rod (751) on cylinder sleeve (71) inner wall, second connecting rod (751) one side is fixed with second arc (752), second arc (752) one side is fixed with second bearing (753), second bearing (753) back of the body and second arc (752) one side inner circle on movable mounting have third pivot (754), be fixed with second gear wheel (755) on the surface of third pivot (754).

5. A planetary cycloidal pin gear reducer according to claim 4 in which: the outer surface of the first small gear (732) is meshed with the outer surface of the first large gear (742), the outer surface of the second small gear (743) is meshed with the outer surface of the second large gear (755), and the central axis of the third rotating shaft (754) and the central axis of the first rotating shaft (731) are on the same horizontal line.

6. A planetary cycloidal pin gear reducer according to claim 1, in which: the quantity of inner loop cooling mechanism (8) is two sets of, including thermal-insulated cover box (81) that are fixed in cylinder sleeve (71) top, be fixed with semiconductor refrigeration piece (82) and fan (83) on thermal-insulated cover box (81) inner wall, just thermal-insulated cover box (81) bottom fixed mounting has communicating pipe (85), fan (83) are fixed with temperature sensor (84) on the surface.

7. A planetary cycloidal pin gear reducer according to claim 6 in which: two sets of inner loop cooling mechanism (8) are followed cylinder sleeve (71) middle vertical truncation and are personally submitted the symmetric distribution, the quantity of semiconductor refrigeration piece (82) is three, the quantity of communicating pipe (85) is four, four communicating pipe (85) are evenly distributed along thermal-insulated cover shell (81) bottom, just it is inside to extend to cylinder sleeve (71) communicating pipe (85) bottom.

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