CN202597669U

CN202597669U - Gear structure for gearbox

Info

Publication number: CN202597669U
Application number: CN 201220211349
Authority: CN
Inventors: 王开发
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2012-12-12
Anticipated expiration: 2022-05-11

Abstract

The utility model discloses a gear structure for a gearbox. The gear structure comprises an upper gearbox cover and a lower gearbox cover. An upper gear ring and a lower gear ring are fixedly arranged between the upper and lower gearbox covers. Teeth on the inner wall of the upper gear ring are one or two more than teeth on the inner wall of the lower gear ring. An upper planet carrier and a lower planet carrier are arranged between the upper and lower gear rings. One or more long planet gears are arranged on the lower planet carrier, and are correspondingly meshed with the upper and lower gear rings. Compared with the prior art, the utility model has the advantages that the gear structure is small in size and high in module of gear under the condition of the same gear transmission ratio, so that a requirement for the accuracy of gears is low, the gear structure is easy to assemble, and other fittings cannot be damaged by the rotation of a rotating shaft sleeve part; and the like.

Description

A kind of gear-box gear structure

Technical field

The utility model relates to gear-box, and what be specifically related to is a kind of gear-box gear structure.

Background technique

Gear-box is the power resources of telecontrolled model control action, and the required gear-box kind of dissimilar telecontrolled models is also different thereupon.Common model gear-box generally is made up of upper casing, mesochite, lower casing, driving mechanism, potentiometer etc. at present, and driving mechanism is installed in the upper casing, and potentiometer is installed in the mesochite, the shared output shaft of potentiometer and driving mechanism.Driving mechanism generally comprises output gear, output gear bearing and speed change gear group, and output gear as running shaft, and carries output torque with the output gear bearing negative with the output shaft of potentiometer.

There is following shortcoming in present model gear-box: one, many three teeth of the upper ring gear gear ratio lower ring gear number of teeth on the driving mechanism tooth case; Its velocity ratio is less; Will accomplish that under equal volume identical velocity ratio only reduces module, the validity to gear requires very high like this; Two, the planet tooth in the driving mechanism is three, and equally long, drives two gear rings up and down, its complex structure simultaneously by these three planet teeth during transmission; When three, the driving mechanism gear train rotates under driven by motor,, will cause other accessories to damage in case motionless situation appears blocking in rotary shaft external member.

The model utility content

The purpose of the utility model is to provide a kind of gear-box gear structure, the problem that the existing velocity ratio of present model gearbox drive gear mechanism is little to solve, the accuracy of gear requires height, complex structure and accessory to damage easily.

The purpose of the utility model realizes through following technological scheme.

A kind of gear-box gear structure; Comprise gear-box loam cake and gear-box lower cover; Be installed with upper ring gear and lower ring gear between gear-box loam cake and the gear-box lower cover, the said upper ring gear inwall gear ratio lower ring gear inwall number of teeth many one or two, and upper planet frame and lower planet frame are installed between said upper ring gear and the lower ring gear; One or two long planet tooth is installed on the said lower planet frame, this long planet tooth respectively with upper ring gear, the corresponding engagement of lower ring gear.

Said lower planet frame is equipped with a long planet tooth and two short planet teeth, the corresponding engagement with lower ring gear of said short planet tooth.

Two long planet teeth and a short planet tooth are installed, the corresponding engagement of said short planet tooth on the said lower planet frame with lower ring gear.

Said gear-box lower cover bottom is installed with motor, and said motor is connected with a joggle with above-mentioned short planet tooth, long planet tooth respectively through the motor tooth.

Two Non-slip materials also are installed in the said upper ring gear, between said two Non-slip materials rotary shaft external member are installed, be installed with rotating shaft in this rotary shaft external member.

Compared with prior art, the beneficial effect of the utility model is:

One, the number of teeth of the gear ratio lower ring gear of the gear-box gear structure upper ring gear that provides of the utility model many one or two; Under the situation of the same volume and the number of teeth; The utility model velocity ratio is 3 times or 1.5 times of traditional epicyclic gearbox, and also not high to the required precision of gear.

Two, the utility model only adopts one or two long planet tooth, rotates through the moving upper ring gear of long planet cingulum, has effectively avoided the problem that reduces because of gear ratio that the planet tooth too much causes.

Three, the utility model respectively is provided with a Non-slip material in the rotary shaft external member both sides; When fork can't rotate; Rotary shaft external member then can be rotated at two Non-slip materials, and Non-slip material is flicked, treat that rotary shaft external member turns over after; Non-slip material then resets, and has effectively avoided rotating the problem that other accessories is caused damage because of rotary shaft external member.

Description of drawings

Fig. 1 is the perspective view of the utility model.

Fig. 2 is the sectional view of the utility model.

Fig. 3 is the decomposition texture schematic representation of the utility model.

Fig. 4 is the utility model gear-box internal structure schematic representation.

Fig. 5 is the utility model gear-box gear ring internal structure schematic representation.

Fig. 6 is the utility model gear-box inner teeth wheels structural representation one.

Fig. 7 is the utility model gear-box inner teeth wheels structural representation two.

Identifier declaration among the figure: fork 1, potentiometer fixed block 2, fork fixed block 3, potentiometer 4, gear-box loam cake 5, rotating shaft 6, rotary shaft external member 7, Non-slip material 8, upper ring gear 9, upper planet frame 10, long planet tooth 11, short planet tooth 12, lower planet frame 13, lower ring gear 14, gear-box lower cover 15, motor tooth 16, motor 17.

Embodiment

For the purpose, technological scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

See also Fig. 1, Fig. 2, shown in Figure 3, Fig. 1 is the perspective view of the utility model; Fig. 2 is the sectional view of the utility model; Fig. 3 is the decomposition texture schematic representation of the utility model.The utility model provides a kind of gear-box gear structure, potentiometer 4 and fork 1 that it includes gear-box, is installed in the motor 17 of gear-box bottom and is installed in upper gear case.

Gear-box comprises gear-box loam cake 5, gear-box lower cover 15 and is installed in upper ring gear 9 and the lower ring gear 14 between gear-box loam cake 5, the gear-box lower cover 15.Said gear-box loam cake 5 is provided with a potentiometer fixed block 2 and a fork fixed block 3, and potentiometer 4 is fixedly mounted in the potentiometer fixed block 2, and fork 1 is fixedly mounted on the fork fixed block 3.

The madial wall of upper ring gear 9 is provided with gear, and lower ring gear 14 inside also are provided with gear, and the number of teeth of the gear ratio lower ring gear 14 of upper ring gear 9 many one or two, lower ring gear 14 is fixedly mounted on the gear-box lower cover 15.Between upper ring gear 9 and lower ring gear 14, also be provided with upper planet frame 10 and lower planet frame 13.

Like Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, Fig. 4 is the utility model gear-box internal structure schematic representation; Fig. 5 is the utility model gear-box gear ring internal structure schematic representation; Fig. 6 is the utility model gear-box inner teeth wheels structural representation one; Fig. 7 is the utility model gear-box inner teeth wheels structural representation two.Also be provided with one or two long planet tooth 11 between wherein said upper planet frame 10 and the lower planet frame 13, this long planet tooth 11 is fixed on the lower planet frame 13, and respectively with the gear engagement of upper planet frame 10 and lower planet frame 13 madial walls.

Short planet tooth 12 can be set between upper planet frame 10 and lower planet frame 13 can be provided with yet; If be provided with a long planet tooth 11 between upper planet frame 10 and the lower planet frame 13; Then two short planet teeth 12 can be set between upper planet frame 10 and lower planet frame 13 accordingly; Said short planet tooth 12 is fixed on the lower planet frame 13, and with the gear engagement of lower planet frame 13 madial walls; If be provided with two long planet teeth 11 between upper planet frame 10 and the lower planet frame 13; Then can between upper planet frame 10 and lower planet frame 13, not be provided with or be provided with a short planet tooth 12 accordingly; The gear engagement of short planet tooth 12 of same this and lower planet frame 13 madial walls need to prove that the short planet tooth 12 does not here contact with long planet tooth 11.

Gear-box lower cover 15 bottoms are equipped with motor 17; This motor 17 is through motor tooth 16 and be installed in the short planet tooth 12 on the

lower planet frame

13,11 engagements of long planet tooth; Short planet tooth 12 and lower ring gear 14 engagements, long planet tooth 11 mesh with lower ring gear 14 and upper ring gear 9 respectively.

A rotary shaft external member 7 is installed in upper ring gear 9, and these rotary shaft external member 7 both sides are provided with Non-slip material 8, and are installed with rotating shaft 6 on the rotary shaft external member 7, and above-mentioned potentiometer 4 is passed in this rotating shaft 6 and fork fixed block 3 is connected with fork 1.

The working principle of the utility model is: motor 17 work drive motor tooth 16 and rotate; With short planet tooth 12, the 11 corresponding rotations of long planet tooth that motor tooth 16 is in transmission connection, lower planet frame 13 passes through short planet tooth 12 and rotates corresponding rotation in lower ring gear 14, and upper ring gear 9 rotates through long planet tooth 11 drives; Since the number of teeth of the gear ratio lower ring gear 14 of upper ring gear 9 many one or two; When upper ring gear 9 rotated a week, corresponding short planet tooth 12 did not also turn to a week in lower ring gear 14, can lack one or two tooth position usually; The rotary shaft external member 7 that is installed in accordingly in the upper ring gear 9 can drive rotating shaft 6 rotations, and then drives fork 1 rotation.

When fork rotates,, cause and to be rotated further if stop up; The then corresponding rotation of rotary shaft external member this moment, and cause other accessories because of rotation in order to prevent, like damages such as gear, upper ring gear, lower ring gears; Then correspondence is provided with Non-slip material in the both sides of rotary shaft external member, and during rotation, rotary shaft external member struts this Non-slip material; After the rotation, Non-slip material then resets again.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. gear-box gear structure; Comprise gear-box loam cake (5) and gear-box lower cover (15); Be installed with upper ring gear (9) and lower ring gear (14) between gear-box loam cake (5) and the gear-box lower cover (15); It is characterized in that said upper ring gear (9) inwall gear ratio lower ring gear (14) the inwall number of teeth many one or two; And upper planet frame (10) and lower planet frame (13) are installed between said upper ring gear (9) and the lower ring gear (14), one or two long planet tooth (11) are installed on the said lower planet frame (13), this long planet tooth (11) respectively with upper ring gear (9), the corresponding engagement of lower ring gear (14).

2. gear-box gear structure according to claim 1 is characterized in that said lower planet frame (13) is equipped with a long planet tooth (11) and two short planet teeth (12), said short planet tooth (12) and the corresponding engagement of lower ring gear (14).

3. gear-box gear structure according to claim 1 is characterized in that being equipped with on the said lower planet frame (13) (11) short planet teeth (12) of two long planet teeth, said short planet tooth (12) and the corresponding engagement of lower ring gear (14).

4. according to claim 2 or 3 described gear-box gear structures; It is characterized in that said gear-box lower cover (15) bottom is installed with motor (17), said motor (17) is connected with a joggle with above-mentioned short planet tooth (12), long planet tooth (11) respectively through motor tooth (16).

5. gear-box gear structure according to claim 1; It is characterized in that also being equipped with in the said upper ring gear (9) two Non-slip materials (8); Rotary shaft external member (7) is installed between said two Non-slip materials (8), is installed with rotating shaft (6) in this rotary shaft external member (7).