CN202100692U - Lubricating structure of planetary speed-reducing gear mechanism - Google Patents

Abstract

The utility model provides a lubricating structure of a planetary speed-reducing gear mechanism. The speed-reducing gear mechanism comprises an outer housing and a planetary gear set assembled in the outer housing, wherein the planetary gear set comprises a hollow bracket with an output shaft and a plurality of planetary gears evenly assembled in the hollow bracket, the center of each planetary gear is assembled with a bearing, and an axle hole at the center of each bearing is pivoted and assembled with a rotating shaft; an installing groove which is arranged in the hollow bracket is provided with a gear installing wall edge, and the gear installing wall edge is provided with a shaft positioning hole to position the rotating shafts in an inserting and assembling way; the gear installing wall edge of each installing groove is provided with an oil guide groove which extends along with a length direction, the extended outward end of the oil guide groove penetrates through an opening end of each installing groove, and the extended inward end of the oil guide groove is leastways extended and communicated with the shaft positioning hole of each gear installing wall edge; and by adopting the design, the lubricating oil of the planetary speed-reducing gear mechanism is synchronously guided between the rotating shaft and a bearing shaft hole by the oil guide groove arranged at the gear installing wall edge when the planetary gear set rotates.

Description

The lubricating structure of solar reduction gear mechanism

Technical field

The utility model relates to a kind of solar reduction gear mechanism, the particularly innovation kenel of its lubricating structure design.

Background technique

Because general motor tool higher rotation speed; If directly apply to have on the passive component rotate too fast, damage problems such as passive component intensity and reduction of service life; Be provided with reducing gear at present on the motor output shaft to reduce rotating speed; And reducing gear is of a great variety, and except the mode of tradition through large and small gear collocation reaches the purpose of deceleration, at present modal the utility model institute desire that is is to the epicyclic reduction gear of planetary type mechanism of inquiring into improvement.

The great advantage of said epicyclic reduction gear of planetary type mechanism is to improve that conventional gears reducing gear volume is big, problems such as complex structure, running noise and vibrations, so be more suitable for extensively being applied in the various different subject matters; And the formation of epicyclic reduction gear of planetary type machine comprises that mainly one has the housing of interior groove; And in be located at the planet gear train in this housing; This planetary gear set has output shaft, and is made up of a plurality of planetary pinions with helical tooth, and respectively this planetary pinion is meshed with the set interior groove of housing; And in the planetary gear set and be provided with in order to connect a sun gear group of motor; Like this when revolution, but the relative housing rotation of the planetary pinion of start planetary gear set, and then reach the purpose that reduces the output shaft rotating speed.

Though aforementioned known epicyclic reduction gear of planetary type mechanism can reach the deceleration purpose, finds in the actual use experience: rotate and stressed generation end thrust with the housing interlock because its planetary pinion is a helical tooth with periphery, impel planetary pinion end face and two side walls to fit and then generation rubs and push effect; Add in order to make planetary pinion accurately mesh rotation; General ccontaining planetary space is all quite accurate on location and size, and matching gap is quite small, but so causes lubricant oil can't get into the problem in the inner axis hole of planetary pinion smoothly; And then cause the phenomenon of its lack of lubrication; Thus, produce excessive vibrations and noise in the time of not only can causing it to rotate, more possibly cause the error of planetary pinion engagement because of abrasion; And then cause parts to destroy, directly have influence on the working life of gear reduction unit.

To the said problem of leading portion; Follow-up have then relevant industry propose some patented technologies think in response to; Such as " the planetary pinion lubricating structure of gear reduction unit " patent of invention case of TaiWan, China patent application case numbers 94130754 announcement; Mainly be through being arranged with the technology of at least one oil duct at this planetary pinion both sides end face respectively,, reaching its lubricated purpose when planetary pinion rotating in this well-known schemes so that lubricant oil can be clamp-oned in the axis hole through the guiding of said oil duct; Yet; Though this kind practice can reach the purpose of its lubricated planetary gear shaft hole; But because its oil duct is to be arranged with the end face area in the planetary pinion both sides; On making, must after planetary pinion is made moulding, pass through the moulding of secondary operations mode ability again, so obviously can cause the increase of dealer's manufacture cost, improve the space existence that breaks through again so partly obviously still have.

Therefore, to the existing problem of lubricating structure of above-mentioned known epicyclic reduction gear of planetary type mechanism, how to develop a kind of innovation structure that has more desirable practicability, the relevant dealer of real system must make great efforts to research and develop the target and the direction of breakthrough again.

In view of this, the inventor this in manufacturing development and the design experiences of being engaged in Related product for many years, to above-mentioned target, in detail after design and the scrupulous assessment, eventually the utility model of a true tool practicability.

The model utility content

The main purpose of the utility model; Be to provide the lubricating structure of a kind of solar reduction gear mechanism; The problem that its desire solves is for being that target improves breakthrough to how developing a kind of lubricating structure that has more the new-type solar reduction gear mechanism of desirable practicability; Said solar reduction gear mechanism comprises frame and is mounted on the planetary gear set in this frame; This planetary gear set comprises that hollow carriage with output shaft and average group be located at the inner a plurality of planetary pinions of this hollow carriage; Each planetary pinion center stack is provided with bearing, and the axis hole pivot group of these bearing central authorities has rotating shaft; This housing inner edge has interior groove to be meshed with each planetary pinion outer periphery; The central interior of this hollow carriage then is provided with and uses a sun gear that connects drive motor again; This hollow carriage inside has the interval circular row and opening end passes several outside installing grooves; Each is installed groove and all has gear installing wall edge, and said gear installing wall edge has a positioning hole and locatees for the rotating shaft insert group;

The technical characterstic that the utility model is dealt with problems; The Oil Guide groove that mainly is respectively to install the gear installing wall edge of groove and is concaved with microscler extension; The extension of said Oil Guide groove passes the opening end of installing groove outward, and the extension of Oil Guide groove then must be extended the axle positioning hole that is communicated to this gear installing wall edge at least to the inner; Innovate unique design by this; The utility model contrast prior art; The lubricant oil of solar reduction gear mechanism is when planetary gear set is rotated; Can be directed between rotating shaft and the bearing axis hole through the set Oil Guide groove of gear installing wall edge synchronously, and then reach enhancement planetary pinion lubrication effect, reduction vibrating noise, increase the service life and make simple and effect and purpose that can reduce cost.

Another purpose of the utility model; Extended to gear installing wall edge middle section for further passing through the axle positioning hole to the inner by the extension of set each the Oil Guide groove of this installing groove one side gear installing wall edge; And this gear installing wall edge middle section is provided with an inner fovea part and extends the structural design that communicates to the inner with each Oil Guide groove; So that lubricant oil can further be directed into hollow carriage central interior zone, make that planetary gear set obtains more comprehensively, lubrication effect more fully.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the schematic appearance of the reduction gear of the utility model;

Fig. 2 is the combination stereogram of the reduction gear of the utility model;

Fig. 3 is the planetary pinion and the hollow carriage combination relation schematic representation of the utility model;

Fig. 4 is the section plan of the hollow carriage of the utility model;

Fig. 5 passed through the schematic perspective view that the axle positioning hole extends to inner fovea part for the Oil Guide groove of the utility model;

Fig. 6 passed through the section plan that the axle positioning hole extends to inner fovea part for the Oil Guide groove of the utility model;

Fig. 7 is another enforcement illustration of Oil Guide groove kenel of the utility model;

Fig. 8 is made as semicircular planimetric map for the Oil Guide trench cross section of the utility model.

Embodiment

To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment will be carried out clear, intactly description.

Should be clear and definite, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making all other embodiments that obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

See also shown in Fig. 1-4, be the preferred embodiment of the lubricating structure of the utility model solar reduction gear mechanism, this type of embodiment only supplies the usefulness of explanation, in patent application, does not receive the restriction of this structure.Said solar reduction gear mechanism comprises a frame 10 and is mounted on the planet gear train 20 in this frame 10; This planetary gear set 20 comprises the hollow carriage 22 with output shaft 21 and is evenly distributed a plurality of planetary pinions 23 that are mounted on these hollow carriage 22 inside; Respectively these planetary pinion 23 center stack are provided with bearing 24, and the axis hole 25 pivot groups of these bearing 24 central authorities have rotating shaft 26; These frame 10 inner edges have interior groove to be used with these planetary pinion 23 outer periphery respectively and is meshed; The central interior of this hollow carriage 22 then is provided with uses a sun gear 12 that connects drive motor; These hollow carriage 22 inside have at interval circular row and opening end 270 passes several outside installing grooves 27 again; Respectively this installing groove 27 all has gear installing wall edge 271, and said gear installing wall edge 271 has a positioning hole 272 for this rotating shaft 26 insert groups location; The core design of the utility model is:

The gear of this installing groove 27 installing wall edge 271 and be concaved with the Oil Guide groove 30 of microscler extension respectively; The extension of said Oil Guide groove 30 passes the opening end 270 of this installing groove 27 outward, and the extension of Oil Guide groove 30 then must be extended the axle positioning hole 272 that is communicated to this gear installing wall edge 271 at least to the inner; By this; Make the lubricant oil of solar reduction gear mechanism can be when planetary gear set 20 is rotated; Be directed between rotating shaft 26 and bearing 24 axis holes 25 through these gear installing wall edge 271 set Oil Guide grooves 30 synchronously, reach and promote planetary pinion 23 lubrication effects, reduction vibrating noise, increase the service life and make simple and effect and purpose that can reduce cost.

Wherein, Like Fig. 5, shown in 6, be Oil Guide groove 30 another embodiments, the extension of side gear installing wall edge 271 set each Oil Guide groove 30 of this installing groove 27 is to the inner; And further passed through an axle positioning hole 272 and extended to this side gear installing wall edge 271 middle sections; And this gear installing wall edge 271 middle sections are provided with an inner fovea part 273 and communicate to the inner with the extension of this Oil Guide groove 30 respectively, use making lubricant oil be directed to middle section by Oil Guide groove 30, make that this planetary pinion 23 and sun gear 12 engagements are more smooth and easy; And have the wearing and tearing of preventing, make that planetary gear set 20 obtains more comprehensively, the characteristics of lubrication effect more fully.

Wherein, The concrete kenel that Oil Guide groove 30 can show can be multiple, like Fig. 4, the groove of Oil Guide shown in 6 30, then is to be designed to the microscler extension path kenel of a kind of straight line; Or Oil Guide groove as shown in Figure 7 30 be for can be designed to the microscler extension path kenel of camber line, also or be curve extension path kenel.

Wherein, the cross section of Oil Guide groove 30 is any kenel in semicircle, trapezoidal, the V-arrangement, is illustrated in figure 8 as semicircle kenel.

Form design by said structure; The core design of the utility model; Mainly be the gear installing wall edge 271 of this installing groove 27 and be concaved with the technical characterstic of the Oil Guide groove 30 of microscler extension; The extension of said Oil Guide groove 30 is to pass the opening end of this installing groove 27 270 outward, and the extension of Oil Guide groove 30 then must be extended the extraordinarily intelligent kenel of the axle positioning hole 272 that is communicated to this gear installing wall edge 271 at least to the inner; By this; Make the lubricant oil of solar reduction gear mechanism can be when planetary gear set 20 is rotated; Be directed between rotating shaft 26 and bearing 24 axis holes 25 through these gear installing wall edge 271 set Oil Guide grooves 30 synchronously, reach the characteristics of promoting planetary pinion 23 lubrication effects, reducing vibrating noise, increasing the service life; Moreover; When milling should be installed groove 27; Can be by the kenel planning and designing of one group of milling tool milling shaping Oil Guide groove 30 in the lump; Need not go through the twice procedure, manpower man-hour is economization relatively obviously, can reach more therefore that to make processing simpler and easy and can reduce the preferable industrial economy benefit of stages of labor cost.

" lubricating structure of solar reduction gear mechanism " that the utility model disclosed; Mainly be provided with the innovation unique texture kenel design of the Oil Guide groove of microscler extension by the gear installing wall emargination of this installing groove; Because the extension of said Oil Guide groove passes the opening end of this installing groove outward, and the extension of this Oil Guide groove then must be extended the axle positioning hole that is communicated to this gear installing wall edge at least to the inner; By this; The lubricant oil of said solar reduction gear mechanism can be when planetary gear set be rotated; Be directed between rotating shaft and the bearing axis hole through the set Oil Guide groove of this gear installing wall edge synchronously, reach the characteristics of promoting the planetary pinion lubrication effect, reducing vibrating noise, increasing the service life; Moreover said Oil Guide groove should installing during groove in milling, and milling is shaped in the lump, can reach more therefore that to make processing simpler and easy and can reduce the preferable industrial economy benefit of stages of labor cost.

The utility model further passed through the structural design that the axle positioning hole extends to this side gear installing wall edge middle section by set each the Oil Guide groove of installing groove; Make lubricant oil be directed to middle section by the Oil Guide groove; Make that this planetary pinion and sun gear engagement are more smooth and easy; And have the wearing and tearing of preventing, make that planetary gear set obtains more comprehensively, the characteristics of lubrication effect more fully.

The content that the foregoing description disclosed is merely and specifies the utility model, though and describe through specific term in the literary composition, can not limit this novel claim with this certainly; The personage who is familiar with this technical field can change and revise it after the spirit of understanding the utility model and principle certainly and reach equivalent purpose, and these changes and modification, all should be covered by in the category that said claim defines.

Claims (4)

1. the lubricating structure of a solar reduction gear mechanism; Said solar reduction gear mechanism comprises a frame and is mounted on the planet gear train in the said frame; Said planetary gear set comprises the hollow carriage with output shaft and is evenly distributed a plurality of planetary pinions that are mounted on said hollow carriage inside; Each said planetary pinion center stack is provided with bearing, and the central axis hole pivot group of said bearing has rotating shaft; Said frame inner edge has interior groove to be used with each said planetary pinion outer periphery and is meshed; The central interior of said hollow carriage then is provided with uses a sun gear that connects drive motor; Said hollow carriage inside has the interval circular row and opening end passes several outside installing grooves; Each said installing groove all has gear installing wall edge, and said gear installing wall edge has a positioning hole and locatees for said rotating shaft insert group; It is characterized in that:

The gear of each said installing groove is installed the wall edge and is concaved with the Oil Guide groove of microscler extension; The extension of said Oil Guide groove passes the opening end of said installing groove outward, and the extension of Oil Guide groove then must be extended the axle positioning hole that is communicated to said gear installing wall edge at least to the inner; By this, the lubricant oil of solar reduction gear mechanism can be directed between rotating shaft and the bearing axis hole through the set Oil Guide groove of said gear installing wall edge when planetary gear set is rotated synchronously.

2. the lubricating structure of solar reduction gear according to claim 1 mechanism is characterized in that:

The extension of set each the Oil Guide groove of one side gear installing wall edge of said installing groove is to the inner; And further passed through an axle positioning hole and extend to this side gear installing wall edge middle section, and said gear installing wall edge middle section is provided with an inner fovea part and communicates to the inner with the extension of each said Oil Guide groove.

3. the lubricating structure of solar reduction gear according to claim 1 and 2 mechanism is characterized in that:

The microscler extension path kenel of wherein said Oil Guide groove is any kenel in straight line, camber line, the curve.

4. the lubricating structure of solar reduction gear according to claim 1 and 2 mechanism is characterized in that:

The cross section of wherein said Oil Guide groove is any kenel in semicircle, trapezoidal, the V-arrangement.

Images