CN207893102U - the gear box structure of speed reducer - Google Patents

Abstract

The utility model is a kind of gear box structure of speed reducer, it is to combine an internal gear at the room internal face being fixed in a babinet, at least a lateral surface or the two sides of the internal gear have been recessed annular groove, being molded the aluminum alloy materials of the babinet can fill at the annular groove of the internal gear both sides made of the steel, so that the internal gear of high intensity and each planetary gear of speed reducer force-output shaft are intermeshed, and the babinet has preferable heat conduction and heat dissipation effect, for a gear-box with practical effect.

Description

The gear box structure of speed reducer

Technical field

The utility model be about an actuated element, be espespecially arranged in speed reducer for each planetary gear install and engage Reducer gear box structure.

Background technology

Speed reducer is a kind of transmission mechanism, can be used for reducing the rotating speed of power to promote torque, and can reduce inertia, Power typically is provided by motor output shaft, this power has high rotating speed but torsion is small, and rotating speed can be reduced after via speed reducer And promote torsion and can have higher load capacity, therefore widely it is used in power transmission.

The one of which speed reducer of the prior art, as shown in Figures 4 and 5, construction includes that a gear-box 30, one enters power Axis 40, a force-output shaft 50 and a flange seat 60, the gear-box 30 are ducted body, integrally formed with tooth form on internal ring wall face To have an internal gear 31, which is that long rod is arranged inside the gear-box 30, and one end has a larger outer diameter The ontology 51 of cylinder, the other end are a shaft 52, are recessed three hollow-out parts 53 inside the ontology 51, another end face is formed with One hole can be respectively equipped with a planetary gear 55 inside the respectively hollow-out parts 53 and mutually be pivoted with the ontology 51, a sun gear 54 one end has tooth form and is arranged in the ontology 51 and is located between the respectively planetary gear 55 and is intermeshed, and the method Blue seat 60 and the gear-box 30 be combined with each other fixation, the power output shaft phase of 40 one end of inputting shaft and motor set by inside It connects, the other end is connect with the other end of the sun gear 54；

Due to the gear-box of prior art speed reducer, it is located at the internal gear for being integrally formed setting and sun tooth to provide Power conveying between wheel, the gear-box must have higher intensity so that the gear-box of the prior art is usually to use Steel are that material is made, and gearbox configuration intensity so begins to provide the sun gear of inputting shaft and gear-box tooth Each sun gear between shape is rotated and is outputed power via the force-output shaft, and the gear-box of manufacture is integrally formed with steel material, It is more difficult of high cost and the shortcomings of heat conduction and heat radiation effect is also less desirable and problem waits improveing there are making.

Utility model content

The utility model is improved for the disadvantage present in aforementioned prior art gearbox configuration, wherein hollow box body It is internally provided with an internal gear annular in shape, uses internal gear and a case with preferable heat dissipation effect with certain structural strength Body, which combines, to be fixed, and other than the running for deceleration mechanism, has more the practical purpose of good heat dissipation effect.

To reach creation purpose above-mentioned, the utility model with technological means be to provide a kind of tooth of speed reducer Take turns box structure comprising have a babinet and an internal gear；The babinet is formed with a room for a ducted body and inside, in its two End is respectively provided with the through-hole communicated with the room, which has been recessed a circular rabbet；The internal gear, in being one Empty torus, inner ring wall surface are formed with tooth form, which combines and be fixed on the circular rabbet.

Two lateral surface of torus of the gear box structure of the speed reducer, the wherein internal gear has been recessed one respectively Annular groove, the material for being molded the babinet can be filled in the annular groove.

The outer side surface of the gear box structure of the speed reducer, wherein the internal gear torus has been recessed at least one The either side of any cell wall and the torus of locating slot and the locating slot is perpendicular, and the outer shroud wall surface of another torus is formed with Embossing.

The gear box structure of the speed reducer, the wherein end face of the babinet one end assem-bly face for one, this, which is assem-bly faced, sets Have several mounting holes, the outside of the other end has a fixed seat, which is equipped with several perforation, the circular rabbet be adjacent to The one end assem-bly faced of the babinet.

The utility model gear-box by the utilization of aforementioned techniques means, is be combined with each other by a babinet and an internal gear It is fixed, and the babinet in the manufacturing procedure being manufactured with the internal gear is joined integrally is made with easily fabricated practical work( Effect, but since steel material can be used in the internal gear, and there is preferable structural strength, which is to make to be molded with aluminium alloy, And there is preferable heat conduction and heat dissipation effect.

Description of the drawings

Fig. 1 is the stereo appearance figure of the utility model.

Fig. 2 is the perspective exploded view of the utility model.

Fig. 3 is another embodiment outside drawing of internal gear of the utility model.

Fig. 4 is the fragmentary sectional outside drawing of the speed reducer of the prior art.

Fig. 5 is the stereogram exploded view of the speed reducer of the prior art.

Specific implementation mode

The preferred embodiment for coordinating schema and the utility model below, it is to reach to make a reservation in fact that the utility model, which is expanded on further, The technological means taken with novel purpose.

Shown in Fig. 1 and Fig. 2, the gear box structure of the speed reducer of the utility model comprising have a babinet 10 and one Internal gear 20；

The babinet 10 is a ducted body, inside be formed with a room 11, and be respectively provided with a through-hole 111 at both ends, Respectively it is connected inside the through-hole 111 and the room 11, the end face of the one end of the babinet 10 is one to assem-bly face 12, is assem-bly faced at this 12 are equipped with several mounting holes, and there is a fixed seat 13, the fixed seat 13 to be equipped with several perforation, the case in the outside of the other end It 11 wall surface of room inside body 10 and assem-bly faces 12 adjacent to this and has been recessed a circular rabbet 14；The babinet 10 is with metal material again Matter is made, and preferred embodiment is relatively easy to being manufactured and is dissipated with preferable heat conduction by being made with aluminum alloy material Hot merit is imitated.

The internal gear 20 is a hollow torus, and the inner ring wall surface of the torus is formed with tooth form 21, the tooth form 21 It can be intermeshed with the planetary gear set by the force-output shaft described in the prior art, the torus at least one side of the internal gear 20 Be recessed an annular groove 22, wherein preferred embodiment be the torus two lateral surfaces respectively in be recessed into an annular groove 22； The internal gear 20 is made with metal material again, and preferred embodiment is made of steel, uses with preferable structural strength.

The gear-box of the utility model by the internal gear 20 being fabricated to tooth form 21 and can be molded the babinet 10 In production process, internal gear 20 and 10 integral production of babinet are molded so that the internal gear 20 is located at 11 internal face of room Circular rabbet 14 at；The internal gear 20 made of steel is placed in the set of molds for making the babinet 10 by specific embodiment therein In, while filling aluminum alloy materials enter in set of molds and babinet 10 are made, which is combined and is fixed on the case In body 10, have make the gear-box it is relatively simple be easy, and due to make the babinet 10 material or aluminum alloy materials be fill It fills out in the annular groove 22 of 20 two sides of the internal gear so that the internal gear 20 has preferable bond strength with the babinet 10.

The gear-box of the utility model is internally provided with internal gear 20 in the babinet 10, contributes for one inside the room 11 Axis is arranged, and respectively planetary gear set by the force-output shaft is intermeshed with the internal gear 20, furthermore the gear-box is in the assembling 12 one end of face can be connect with a flange seat, which is internally provided with an inputting shaft, which connect with a motor, The other end is connected with a sun gear, and the sun gear is between each planetary gear and is intermeshed, and uses motor power Be converted to the power of a slow-speed of revolution and high torsion.

It is the internal gear 20A of another embodiment of the utility model again shown in cooperation referring to Fig. 3, is a hollow annulus The inner ring wall surface of body, the torus is formed with tooth form 21A, and the torus at least one side of internal gear 20A has been recessed one Annular groove 22A, internal gear 20A further can be recessed at least a positioning groove 23A in the outer side surface of torus, preferably Embodiment is perpendicular for the either side of any cell wall and the torus of locating slot 23A, furthermore can be further in the annulus The outer shroud wall surface of body is formed with embossing 24A, when internal gear 20A and 10 integral production of babinet molding, internal gear 20A At the circular rabbet 14 of 11 internal face of room, but make the babinet 10 material or aluminum alloy materials in addition to be filled in this In the annular groove 22A of the two sides internal gear 20A, or in the locating slot 23A, or with embossing 24A, use and improve the internal tooth The intensity that wheel 20A be combined with each other with the babinet 10.

The above is only the preferred embodiment of the utility model, is not done in any form to the utility model Limitation is not limited to the utility model although the utility model is disclosed above with preferred embodiment, any to be familiar with Professional and technical personnel, in the range of not departing from technical solutions of the utility model, when in the technology using the disclosure above Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still It is within the scope of the technical solutions of the present invention.

Claims (7)

1. a kind of gear box structure of speed reducer comprising have a babinet and an internal gear, it is characterised in that；

The babinet, is a ducted body and inside is formed with a room, and being respectively provided with one communicated with the room at its both ends leads to Hole, the room wall surface have been recessed a circular rabbet；

The internal gear is a hollow torus, and inner ring wall surface is formed with tooth form, and it is recessed that internal gear combination is fixed on the ring Portion.

2. the gear box structure of speed reducer according to claim 1, which is characterized in that two outside of torus of the internal gear Face has been recessed an annular groove respectively, and the material for being molded the babinet can be filled in the annular groove.

3. the gear box structure of speed reducer according to claim 1 or 2, which is characterized in that outside the internal gear torus Side wall surface has been recessed at least a positioning groove.

4. the gear box structure of speed reducer according to claim 3, which is characterized in that any cell wall of the locating slot with should The either side of internal gear torus is perpendicular.

5. the gear box structure of speed reducer according to claim 1 or 2, which is characterized in that outside the internal gear torus Ring wall face is formed with embossing.

6. the gear box structure of speed reducer according to claim 2, which is characterized in that the lateral wall of the internal gear torus Face is recessed at least a positioning groove and the either side of any cell wall and the torus of the locating slot is perpendicular, another annulus The outer shroud wall surface of body is formed with embossing.

7. the gear box structure of speed reducer according to claim 1 or 2, which is characterized in that the end face of the babinet one end It is assem-bly faced for one, this is assem-bly faced equipped with several mounting holes, and there is a fixed seat, the fixed seat to be equipped with several in the outside of the other end Perforation, the circular rabbet are the one end assem-bly faced adjacent to the babinet.