CN219760792U

CN219760792U - Accurate and stable motor gear box

Info

Publication number: CN219760792U
Application number: CN202321011526.0U
Authority: CN
Inventors: 毛小庆; 毛金波
Original assignee: Dongguan Bohang Transmission Technology Co ltd
Current assignee: Dongguan Bohang Transmission Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-26
Anticipated expiration: 2033-04-27

Abstract

The utility model provides a precise and stable motor gear box, comprising: the base is used for being arranged on the motor and is provided with a first tooth socket capable of accommodating motor teeth and a second tooth socket capable of accommodating transmission teeth, and the transmission teeth are meshed with the motor teeth; an inner gear ring is arranged on the base, the inner teeth of the inner gear ring are meshed with the transmission teeth, and a first gear is formed at the top of the inner gear ring; the output planet carrier assembly comprises a planet carrier, a planet wheel and an output shaft; the box body is arranged on the base, the annular gear and the output planet carrier assembly are accommodated in the box body and the output shaft penetrates out of the top of the box body, and the inner wall of the box body is provided with inner teeth meshed with a plurality of planet gears; the first positioning shaft penetrates through the axis of the annular gear and one end of the first positioning shaft is connected to the planet carrier. According to the utility model, through the design that the first positioning shaft is connected with the planet carrier and the output shaft, the problem that the front side of the output shaft is stressed to extrude the planet teeth and the sun gear in the box body is effectively solved, so that the transmission between the sun gear and other gears is not limited, and the transmission efficiency is improved.

Description

Accurate and stable motor gear box

Technical Field

The utility model relates to the technical field of mechanical transmission mechanisms, in particular to a precise and stable motor gear box.

Background

The mechanical transmission is widely applied in mechanical engineering, and mainly refers to transmission for transmitting power and motion by using a mechanical mode, wherein the transmission mode is divided into two types, namely friction transmission for transmitting power by using friction force between machine parts, and meshing transmission for transmitting power or motion by using a driving part and a driven part or a middle part, and based on the technology, basic products of the mechanical transmission comprise a speed reducer, a brake, a clutch, a coupling, a stepless speed changer, a screw rod, a sliding rail and the like.

Along with the continuous development of science and technology, the development of mechanical transmission technology is promoted, at present, the most widely applied in mechanical transmission is gear transmission, and a gear box can be designed and manufactured based on the gear transmission principle, and because gear transmission is adopted, the gear box has the advantages of compact structure, accurate transmission, reliable work, long service life and the like, but the existing gear box has the defects of self design, the output shaft of the gear box is stressed positively in the working process and can be extruded to an internal gear, so that the gear transmission in the gear box is blocked, the transmission efficiency is reduced, the transmission effect is poor, and the social requirement is difficult to meet.

Disclosure of Invention

The utility model aims to provide a precise and stable motor gear box, which has the advantages of high transmission efficiency, good transmission effect, stable transmission quality and the like, and solves the problem that the prior gear box can squeeze an internal gear due to the front stress of an output shaft in the working process when in use, thereby influencing the transmission use.

In order to achieve the above purpose, the following technical scheme is adopted:

a precision and stable motor gearbox comprising:

the base is used for being installed on a motor and is provided with a first tooth socket capable of containing motor teeth and a second tooth socket capable of containing transmission teeth, the motor teeth are connected with the motor, and the transmission teeth are meshed with the motor teeth;

the inner gear ring is arranged on the base, the inner teeth of the inner gear ring are meshed with the transmission teeth, and a sun gear is formed at the top of the inner gear ring;

an output planet carrier assembly comprising a planet carrier and a plurality of planet gears journaled in the planet carrier and meshed about the sun gear, the planet carrier being connected to an output shaft;

the box body is arranged on the base, the annular gear and the output planet carrier component are accommodated in the box body and the output shaft penetrates out of the top of the box body, and inner teeth meshed with the planet gears are formed on the inner wall of the box body;

the first positioning shaft penetrates through the axis of the annular gear, and one end of the first positioning shaft is connected to the planet carrier.

Further, the base is provided with a plurality of through holes which are matched and installed with the motor through bolts, and a plurality of screw holes which are matched and installed with the box body through screws.

Further, a positioning block is arranged between the base and the inner gear ring, and the other end of the first positioning shaft penetrates through the inner gear ring and then is connected to the positioning block.

Further, a limiting shaft capable of limiting in the base is formed at the bottom of the positioning block, and the first positioning shaft extends to the limiting shaft.

Further, the transmission gear is installed on a second positioning shaft, one end of the second positioning shaft is connected to the second tooth slot, and the other end of the second positioning shaft is limited on the positioning block.

Further, a plurality of limit posts are formed at the top of the base, and positioning holes matched with the limit posts are formed in the positioning blocks.

Further, at least two transmission teeth are arranged symmetrically.

Further, a third positioning shaft for positioning the plurality of planetary gears is formed at the bottom of the planet carrier.

Further, the output shaft is connected with the planet carrier in a plug-in mode, and the first positioning shaft penetrates through the annular gear and the sun gear and then is connected to the output shaft.

Further, a shaft sleeve is arranged at the top of the box body, and the output shaft penetrates through the shaft sleeve.

By adopting the scheme, the utility model has the beneficial effects that:

through the design that first location axle is connected planet carrier and output shaft, effectively solve the problem of the positive atress extrusion box of output shaft internal planetary gear and sun gear for the transmission is unrestricted between sun gear and other gears, consequently improved transmission efficiency.

Drawings

FIG. 1 is a schematic diagram of a gearbox according to an embodiment of the present utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic illustration of the structure of the dispense with motor and housing of FIG. 1;

FIG. 4 is a schematic illustration of the structure of the dispensing base of FIG. 3;

FIG. 5 is a schematic view of a base structure according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a case according to an embodiment of the present utility model.

Wherein, the attached drawings mark and illustrate:

1. a base; 101. a first tooth slot; 102. a second tooth slot; 103. a through hole; 104. a screw hole; 105. a limit column; 2. motor teeth; 3. a drive tooth; 4. a motor; 5. an inner gear ring; 501. a sun gear; 6. a planet carrier; 7. a planet wheel; 8. an output shaft; 9. a case; 10. a first positioning shaft; 11. a bolt; 12. a screw; 13. a positioning block; 1301. a limiting shaft; 1302. positioning holes; 14. a second positioning shaft; 15. a shaft sleeve; 16. and a third positioning shaft.

Detailed Description

Exemplary embodiments that embody features and advantages of the present utility model will be described in detail in the following description. It will be understood that the utility model is capable of various modifications in various embodiments, all without departing from the scope of the utility model, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the utility model.

As shown in fig. 1-6, a precision and stable motor 4 gearbox, comprising:

the base 1, the base 1 is used for installing on motor 4, and it is provided with the first tooth groove 101 that can hold motor tooth 2 and holds the second tooth groove 102 of driving tooth 3, and motor tooth 2 is connected with motor 4, and driving tooth 3 meshes with motor tooth 2. When the motor 4 is started, the motor teeth 2 on the output end can be driven to rotate and adjust, and the transmission teeth 3 can be driven.

The inner gear ring 5, the inner gear ring 5 is arranged on the base 1, the inner teeth of the inner gear ring are meshed with the transmission teeth 3, and the top of the inner gear ring is provided with a sun gear 501. When the gear 3 rotates, the ring gear 5 rotates with it, and the sun gear 501 rotates.

An output planet carrier 6 assembly, the output planet carrier 6 assembly comprising a planet carrier 6 and a plurality of planet wheels 7 journalled in the planet carrier 6 and meshing around a sun gear 501, the planet carrier 6 being connected to an output shaft 8. When the sun gear 501 rotates, the planetary gear 7 rotates and revolves along the sun gear 501 based on the internal teeth in the following case 9, and the carrier 6 rotates and the output shaft 8 rotates, achieving a variable speed transmission effect. Specifically, the planetary gear 7, the adjacent sun gear 501 and the ring gear inside the case 9 are always in a constant mesh state, so that the planetary gear 7 also revolves under the action of the internal teeth of the ring gear inside the case 9 while the planetary gear 7 rotates. In addition, the number of the planetary teeth can be three, and the three planetary teeth are circumferentially distributed.

The box 9, the box 9 is installed on the base 1, and it holds ring gear 5, output planet carrier 6 subassembly wherein and supplies output shaft 8 to wear out from its top, and its inner wall is formed with the internal tooth that meshes with a plurality of planet wheels 7. Based on box 9, make things convenient for this gear box to form closed transmission after accomplishing the equipment, can guarantee constantly like this that the transmission environment is sealed, and then guarantee good lubrication, make the gear box more durable to make the transmission efficiency of the utility model high and transmission effect good and pass to the quality more stable, and, this transmission structure retrencies and convenient to use, consequently convenient to popularize and use.

The first positioning shaft 10, the first positioning shaft 10 passes through the axis of the ring gear 5 and one end is connected to the carrier 6. Based on the first positioning shaft 10, one end of the first positioning shaft 10 props against the planet carrier 6, so that the problem that the internal gear of the gear box is extruded when the front of the output shaft 8 is stressed is effectively solved, gear transmission is not limited, and transmission efficiency is improved.

In which the output planet carrier 6 assembly forms a planetary gear arrangement, which means, in addition to being able to rotate around its own axis of rotation like a fixed-axis gear, a gear system in which their axis of rotation also rotates with the planet carrier 6 around the axis of the other gear, the rotation around its own axis being termed "autorotation", the rotation around the axis of the other gear being termed "revolution", similar to that of a planet in the solar system and hence the name.

When the output planet carrier 6 assembly in the embodiment is used, the output shaft 8 rotates under the drive of the planet wheel 7, meanwhile, the first positioning shaft 10 can support the output shaft 8, so that in the running process of the gearbox, the first positioning shaft 10 can prop against the output shaft 8, and further the output shaft 8 can not extrude other gears in the gearbox when being stressed in the front, adverse effects on the transmission of the gears are avoided, and the transmission efficiency is improved

In an embodiment, a positioning block 13 is disposed between the base 1 and the ring gear 5, and the other end of the first positioning shaft 10 passes through the ring gear 5 and is connected to the positioning block 13. Based on the positioning block 13, the lower end of the first positioning shaft 10 can be supported, and meanwhile, the stability of the first positioning shaft 10 is ensured because the positioning block 13 is mounted on the base 1.

The bottom of the positioning block 13 is formed with a limiting shaft 1301 that can be limited in the base 1, and the first positioning shaft 10 extends to the limiting shaft 1301. Based on the limit shaft 1301, the stability of the first positioning shaft 10 is further improved.

The driving gear 3 is mounted on a second positioning shaft 14, one end of the second positioning shaft 14 is connected to the second tooth slot 102, and the other end of the second positioning shaft is limited on the positioning block 13. Based on the second positioning shaft 14, the stability of the gear teeth 3 is ensured.

The top of the base 1 is formed with a plurality of spacing posts 105, and the locating block 13 is provided with a locating hole 1302 which is matched with the spacing posts 105. At least two transmission teeth 3 are arranged symmetrically, and at least two transmission teeth 3 are arranged symmetrically. When two transmission teeth 3 are arranged, the cost is reduced, the transmission efficiency is higher, and the transmission effect is more stable.

In one embodiment, a third positioning shaft 16 is formed at the bottom of the planet carrier 6 for positioning the plurality of planet wheels 7, respectively. The output shaft 8 is connected with the planet carrier 6 in a plug-in mode, and the first positioning shaft 10 penetrates through the annular gear 5 and the sun gear 501 and then is connected to the output shaft 8.

In one embodiment, the top of the box 9 is provided with a sleeve 15, and the output shaft 8 passes through the sleeve 15. The shaft sleeve 15 can effectively avoid direct contact between the output shaft 8 and the box 9, reduce abrasion caused by friction between the output shaft 8 and the box 9, so that the cost is saved, and the position of the output shaft 8 can be fixed to effectively reduce vibration, so that the output shaft 8 is prevented from deviating in direction due to vibration, and the accuracy of transmission is ensured.

The shaft sleeve 15 is a copper shaft sleeve 15, and the shaft sleeve 15 is positioned on the outer surface of the output shaft 8 and fixed in the upper groove of the box body 9, so that the service life of the structure is prolonged under the condition of ensuring good use reliability.

In one embodiment, the base 1 is provided with a plurality of through holes 103 which are matched and installed with the motor 4 through bolts 11, and a plurality of screw holes 104 which are matched and installed with the box 9 through screws 12.

It will be appreciated that the through holes 103 on the inner side of the base 1 are movably provided with two bolts 11 in number, so that the base 13 is fixedly mounted on the upper surface of the motor 4 by the bolts 11. And, offer the via hole that is four in quantity on the lateral wall of box 9, correspond with this, the outside of base 1 is provided with four screw 104 correspondingly, and it is with box 9 looks adaptation, when using, box 9 passes through box 9 fixed screw 12 with base 1 and realizes detachable connection.

Description of principle: when the motor 4 is started, the motor teeth 2 can drive the transmission teeth 3 to rotate, the inner gear ring 5 can drive the planet gears 7 to synchronously rotate after the transmission teeth 3 rotate, the box body 9 is meshed with the planet gears 7 through self looped inner teeth, so that gear speed change adjustment is realized, when the gearbox is used, the first positioning shaft 10 props against the output shaft 8, the internal gear of the gearbox can not be extruded when the front of the output shaft 8 is stressed, gear transmission is not limited, so that transmission efficiency and transmission effect are improved, the box body 9 is sleeved on the outer surface of the base 1, and the output shaft 8, the planet gears 7, the inner gear ring 5 and the base 1 are sequentially distributed on the inner side of the box body 9 from top to bottom, so that closed transmission is formed after the gearbox is assembled conveniently, the transmission environment can be sealed at all times, good lubrication is ensured, and the gearbox is more durable.

Based on the above embodiments, it can be known that:

1. according to the gearbox provided by the utility model, the problem that the front side of the output gear is stressed to extrude the gear inside the gearbox is effectively solved through the design that the positioning shaft props against the output gear, so that gear transmission is not limited, transmission efficiency is improved, the number of the transmission gears 3 is two, the stability of the gear transmission is further improved, the transmission effect of the gearbox is good, the box body 9 is sleeved on the outer surface of the base 1, and the output planet carrier 6 assembly, the annular gear 5 and the base 1 are sequentially distributed on the inner side of the box body 9 from top to bottom, so that the gearbox is convenient to complete assembly to form closed transmission, the transmission environment can be sealed at any time, good lubrication is further ensured, the gearbox is more durable, the transmission efficiency of the gearbox is high, the transmission effect is good, the transmission quality is more stable, and the transmission device is simple in structure and convenient to use, and is convenient to popularize and use.

2. In the gear box provided by the utility model, the double-tooth transmission mechanism formed by driving the transmission teeth 3 through the motor teeth 2 is beneficial to reducing the cost, so that the transmission efficiency is higher, the transmission effect is more stable, and the shaft sleeve 15 is the copper shaft sleeve 15, so that the contact between the output shaft 8 and the box body 9 is effectively avoided, the wear resistance is improved, the outer diameter of the output shaft 8 can be ensured not to expand, and the problem that the front stress of the output shaft 8 can squeeze to an internal gear in the working process when the conventional gear box is used, and the transmission use is influenced is effectively solved.

While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A precision and stable motor gearbox comprising:

2. The precise and stable motor gear box according to claim 1, wherein the base is provided with a plurality of through holes which are installed in a matched manner with the motor through bolts, and a plurality of screw holes which are installed in a matched manner with the box body through screws.

3. The precise and stable motor gear box according to claim 1, wherein a positioning block is provided between the base and the ring gear, and the other end of the first positioning shaft passes through the ring gear and is connected to the positioning block.

4. A precision and stable motor gearbox according to claim 3 characterised in that the bottom of the positioning block is formed with a limiting shaft which can be limited in the base, the first positioning shaft extending to the limiting shaft.

5. A precision and stable motor gearbox according to claim 3 characterised in that the drive teeth are mounted on a second positioning shaft, one end of which is connected to the second tooth socket and the other end of which is restrained on the positioning block.

6. The precise and stable motor gear box according to claim 3, wherein a plurality of limit posts are formed on the top of the base, and positioning holes matched with the limit posts are formed on the positioning blocks.

7. The precision and stable motor gearbox of claim 1, wherein at least two of the drive teeth are symmetrically disposed.

8. The precision and stable motor gearbox of claim 1, wherein the planet carrier bottom is formed with a third positioning shaft that positions the plurality of planet gears, respectively.

9. The precision and stable motor gearbox of claim 1, wherein the output shaft is plug-in connected with the planet carrier, and the first positioning shaft is connected to the output shaft after passing through the ring gear and the sun gear.

10. The precision and stable motor gearbox of claim 1, wherein the top of the housing is provided with a sleeve through which the output shaft passes.