CN211343888U - Planetary rotary speed reducer - Google Patents

Abstract

The utility model discloses a planetary rotary speed reducer mainly includes shell, worm, butt joint pole, overcoat worm wheel and the rotatory ring of internal tooth, the shell is the cavity structure, the rotatory ring of internal tooth install in the shell and with between the shell swing joint, overcoat worm wheel suit is on the rotatory ring of internal tooth, the utility model relates to a machining technical field, this planetary rotary speed reducer structure is exquisite, and small in size utilizes on current planetary speed reducer's the principle basis, through the gyration speed reduction principle of introducing the side-mounting formula, utilizes the worm to carry out external power and inserts, has both realized the control speed reducer size, makes its structure with the axle formula, changes into tangential power input to effectively reduce axial length, has carried out the speed reduction of second grade when making things convenient for the control size, effectively increases the moment of torsion, makes the output torque of speed reducer bigger.

Description

Planetary rotary speed reducer

Technical Field

The utility model relates to the technical field of machining, specifically be a planetary rotary speed reducer.

Background

The planetary reducer is an industrial product with wide application, can reduce the rotating speed of a motor and increase output torque, can be used as a matched component in industries such as lifting, digging, transportation, construction and the like, is a rotary reducer, is a full-circle rotary reduction transmission mechanism integrated with a driving power source, takes a rotary support as a transmission driven part and a mechanism attachment part, and is formed by attaching a driving part, a driving source and a housing on one of an inner ring and an outer ring of the rotary support, and the other ring is used as a transmission driven part and a connecting base of a driven working part, therefore, by utilizing the characteristic that the slewing bearing is a full-circle slewing connecting piece, the driving power source and the main transmission part are efficiently configured, so that the universal type speed reduction transmission mechanism integrates the functions of slewing, speed reduction and driving, and is simple in structure and convenient to manufacture and maintain.

The existing planetary speed reducer is mostly in an axial row type structure, the input end and the output end of the structure are located on the same straight line, the length is too long, the installation of the planetary speed reducer on many occasions is inconvenient, the use of the planetary speed reducer is limited, if the outer ring is driven according to the principle of a rotary speed reducer, input power is arranged in the tangential direction, the installation space can be greatly reduced, the installation is more convenient, and in view of the above, the deep research is carried out on the problems, and the scheme is generated.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a planet rotary speed reducer has solved current background technical problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a planetary rotary speed reducer mainly comprises a shell, a worm, a butt joint rod, an outer sleeve worm wheel and an inner tooth rotating ring, wherein the shell is of a cavity structure, the inner tooth rotating ring is installed in the shell and movably connected with the shell, the outer sleeve worm wheel is sleeved on the inner tooth rotating ring, an installation groove is formed in the bottom end of the shell in a tangential direction, the worm is movably installed in the installation groove and meshed with the outer sleeve worm wheel, and the butt joint rod is connected to the end of the worm;

the planetary rotary speed reducer further comprises: the planetary gear set comprises a plurality of planetary gears, a transmission shaft, a central gear, a sleeve plate and an output shaft;

the transmission shaft is arranged in the shell and located in the center of the cavity, the central gear is sleeved on the transmission shaft, the planetary gears are arranged on the outer side of the central gear in an annular array mode and are respectively meshed with the inner tooth rotating ring and the central gear, an output hole is formed in one side of the shell, a plurality of rotating shafts extend out of the centers of the planetary gears, the sleeve plate is sleeved on the rotating shafts and provided with a plurality of sleeve holes matched with the rotating shafts, and the output shaft is movably arranged in the output hole and connected with the sleeve plate.

Preferably, a pair of mirror-image limiting bulges are annularly arranged in the shell.

Preferably, the central gear is fixedly connected with the transmission shaft and cannot rotate.

Preferably, a pair of plugging plates is fixed to two sides of the mounting groove through a plurality of screws, and rotating holes matched with the worm are formed in the pair of plugging plates.

Preferably, the lower end of the shell is provided with a base with a rectangular structure, and a plurality of rubber pads with the same structure are arranged at four corners of the base.

Preferably, a bearing is arranged in the output hole, and the output shaft is embedded in the bearing.

Advantageous effects

The utility model provides a planetary rotary speed reducer. The method has the following beneficial effects: this planet gyration speed reducer structure is exquisite, and the size is small and exquisite, utilizes on the principle basis of current planet speed reducer, through the gyration speed reduction principle of introducing the side-mounted formula, utilizes the worm to carry out the external power and inserts, has both realized control speed reducer size, makes its structure with the axle column formula, changes into tangential power input to effectively reduce axial length, carried out the speed reduction of second grade when making things convenient for control size, effective increase moment of torsion makes the output torque of speed reducer bigger.

Drawings

Fig. 1 is a schematic view of a front view and section structure of a planetary rotary speed reducer.

Fig. 2 is a schematic side view of a planetary rotary speed reducer.

Fig. 3 is a schematic view of a top-down cross-sectional structure of a planetary rotary speed reducer according to the present invention.

Fig. 4 is a schematic diagram of a sleeve plate structure of the planetary rotary speed reducer of the present invention.

In the figure: 1. a housing; 2. a worm; 3. a docking rod; 4. a worm wheel is sleeved outside; 5. an internal tooth rotating ring; 6. a planetary gear; 7. a drive shaft; 8. a sun gear; 9. sheathing; 10. an output shaft; 11. a plugging plate; 12. a base; 13. a rubber pad; 14. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): according to the attached figures 1-4 of the specification, the planetary rotary speed reducer mainly comprises a shell 1, a worm 2, a butt joint rod 3, an outer sleeve worm wheel 4 and an inner tooth rotary ring 5, wherein the shell 1 is of a cavity structure, the inner tooth rotary ring 5 is installed in the shell 1 and is movably connected with the shell 1, the outer sleeve worm wheel 4 is sleeved on the inner tooth rotary ring 5, a mounting groove is formed in the bottom end of the shell 1 along the tangential direction, the worm 2 is movably installed in the mounting groove and is meshed with the outer sleeve worm wheel 4, the butt joint rod 3 is connected to the end part of the worm 2, in the specific implementation process, the inner tooth rotary ring 5 is limited through the shell 1, the inner tooth rotary ring 5 can rotate in the shell 1, specifically, the inner tooth rotary ring 5 is limited through a pair of smooth double-layer limit semicircular annular bulges, the outer sleeve worm wheel 4 is, the internal tooth rotating ring 5 is driven to rotate, and the rotating speed can be effectively reduced due to the large transmission ratio of the worm 2, so that the rotating torque is improved, and primary speed reduction is performed through the design;

as can be seen from fig. 1 to 4 in the specification, a planetary rotary reduction gear further includes: the planetary gears 6, the transmission shaft 7, the sun gear 8, the sleeve plate 9 and the output shaft 10 are connected in the following relationship and position relationship;

the transmission shaft 7 is arranged in the shell 1 and positioned in the center of the cavity, the central gear 8 is sleeved on the transmission shaft 7, the planetary gears 6 are arranged on the outer side of the central gear 8 in an annular array and are respectively meshed with the internal tooth rotating ring 5 and the central gear 8, an output hole is formed in one side of the shell 1, a plurality of rotating shafts extend out of the centers of the planetary gears 6, the sleeve plate 9 is sleeved on the rotating shafts and provided with a plurality of sleeve holes matched with the rotating shafts, and the output shaft 10 is movably arranged in the output hole and connected with the sleeve plate 9;

in the specific implementation process, the internal tooth rotating ring 5 rotates to enable groove teeth in the internal tooth rotating ring to be meshed with the plurality of planetary gears 6, the planetary gears 6 are further meshed with the central gear 8 to enable the planetary gears to rotate around the transmission shaft 7, the sleeve plate 9 is driven to rotate through the limiting effect of the sleeve plate 9, and the planetary reducer is subjected to secondary speed reduction by referring to the principle of a planetary reducer, so that the output torque of the output shaft 10 is further increased;

in conclusion, the planetary rotary speed reducer is exquisite in structure and small in size, on the basis of the principle of the existing planetary speed reducer, the side-mounted rotary speed reduction principle is introduced, the worm 2 is used for external power connection, the size of the speed reducer is controlled, the axial-row structure is changed into tangential power input, the axial length is effectively reduced, two-stage speed reduction is performed while the size is conveniently controlled, the torque is effectively increased, and the output torque of the speed reducer is larger.

Preferably, a pair of mirror-image limiting protrusions are further annularly arranged in the housing 1 for fixing the internally toothed rotating ring 5 to rotate.

Preferably, the central gear 8 is fixedly connected with the transmission shaft 7, and the central gear 8 cannot rotate, so that the central gear 8 and the transmission shaft only have a conduction function and a fixed mounting function.

As preferred scheme, further, a pair of shutoff board 11 is fixed with through a plurality of screws in mounting groove both sides, all sets up the rotatory hole that matches with worm 2 on a pair of shutoff board 11, conveniently overhauls the dismouting.

Preferably, a base 12 with a rectangular structure is arranged at the lower end of the housing 1, and a plurality of rubber pads 13 with the same structure are arranged at four corners of the base 12, so that the stability is improved.

Preferably, a bearing 14 is provided in the output hole, and the output shaft 10 is fitted in the bearing 14, thereby reducing rotational resistance.

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. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (6)

1. A planetary rotary speed reducer mainly comprises a shell (1), a worm (2), a butt joint rod (3), an outer sleeve worm wheel (4) and an inner tooth rotating ring (5), and is characterized in that the shell (1) is of a cavity structure, the inner tooth rotating ring (5) is installed in the shell (1) and is movably connected with the shell (1), the outer sleeve worm wheel (4) is sleeved on the inner tooth rotating ring (5), an installation groove is formed in the bottom end of the shell (1) along the tangential direction, the worm (2) is movably installed in the installation groove and is meshed with the outer sleeve worm wheel (4), and the butt joint rod (3) is connected to the end of the worm (2);

the planetary rotary speed reducer further comprises: a plurality of planetary gears (6), a transmission shaft (7), a central gear (8), a sleeve plate (9) and an output shaft (10);

the transmission shaft (7) is installed in the shell (1) and located at the center of the cavity, the central gear (8) is sleeved on the transmission shaft (7), the planetary gears (6) are installed on the outer side of the central gear (8) in an annular array mode and are respectively meshed with the inner tooth rotating ring (5) and the central gear (8), an output hole is formed in one side of the shell (1), a plurality of rotating shafts extend out of the centers of the planetary gears (6), the sleeve plate (9) is sleeved on the rotating shafts and provided with a plurality of sleeve holes matched with the rotating shafts, and the output shaft (10) is movably installed in the output hole and connected with the sleeve plate (9).

2. A planetary rotary reducer according to claim 1, wherein a pair of mirrored limiting protrusions are annularly provided in the housing (1).

3. A planetary rotary reducer according to claim 1, wherein the sun gear (8) is fixedly connected to the drive shaft (7) and the sun gear (8) is not rotatable.

4. A planetary rotary speed reducer according to claim 1, wherein a pair of blocking plates (11) are fixed to two sides of the mounting groove through a plurality of screws, and a rotating hole matched with the worm (2) is formed in each blocking plate (11).

5. A planetary rotary speed reducer according to claim 1, wherein the lower end of the housing (1) is provided with a base (12) with a rectangular structure, and a plurality of rubber pads (13) with the same structure are arranged at four corners of the base (12).

6. A planetary rotary reduction gear according to claim 1, wherein a bearing (14) is provided in the output hole and the output shaft (10) is fitted in the bearing (14).

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