CN206398048U - Steering wheel loss prevention protection structure - Google Patents

Abstract

The utility model is related to electric component technical field, more particularly, to steering wheel loss prevention protection structure, include upper casing, middle shell, lower casing and middle seat, middle seat is placed in upper casing, middle shell and lower casing are surrounded in the cavity to be formed, in seat against it is near in shell one end on motor and potentiometer are installed side by side, the motor gear of motor linkage drives output shaft by gear train, gear train includes driven gear, First Transition gear, second transition gear, the First Transition gear is arranged on the axis of motor, driven gear and the second transition gear are placed between First Transition gear and output shaft, and driven gear and the second transition gear are co-axially mounted；The mesopore of the driven gear is provided with driven inside groove, and the mesopore of First Transition gear also is provided with being embedded with lubricant in the first inside groove, driven inside groove and the first inside groove.The utility model not only compact conformation, small, ease of assembly is used, and has durable lubricity, protection steering wheel service behaviour and service life between gear mesopore and axle.

Description

Steering wheel loss prevention protection structure

Technical field

The utility model is related to electric component technical field, and special angle is converted to more particularly, to by motor rotational motion The steering wheel of motion.

Background technology

Steering wheel is a kind of electric component that motor rotational motion is converted to certain angular movement, and the occasion being normally applied is all It is to control the anglec of rotation, or the occasion of high torsion is provided, such as model plane control is turned to, and cradle head control, manipulator provides power Deng field.Steering wheel internal structure is usually using one group of gear as deceleration device, and as product is minimized, gear is also relative to be become It is small；But in strenuous exercise, usually occur larger frictional force between gear mesopore and axle, effective profit is lacked in the prior art Sliding, injury of such frictional force to the axle and gear of steering wheel is very big, causes gear mesopore and large and fast, the service life of axle abrasion It is short.

The content of the invention

The purpose of this utility model is to overcome prior art defect there is provided a kind of steering wheel loss prevention protection structure, optimizes rudder Machine internal structure, while increase durable lubricity between gear mesopore and axle, protection steering wheel service behaviour and service life.

To reach above-mentioned purpose, the utility model is adopted the following technical scheme that：

Steering wheel loss prevention protection structure, includes upper casing, middle shell, lower casing and middle seat, and middle seat is placed in upper casing, middle shell and lower casing Surround in the cavity to be formed, in seat against it is near in shell one end on motor and potentiometer, the motor tooth of motor linkage are installed side by side Wheel drives output shaft by gear train, and potentiometer is coaxially connected with output shaft；The gear train and output shaft are seated against in being distributed in On one end of nearly upper casing, output shaft is provided with incoming gear wheel, output pinion, and incoming gear wheel and output pinion are split The two ends of output shaft, output pinion passes upper casing；The gear train includes driven gear, First Transition gear, the second transition Gear, driven gear has the driven canine tooth and driven small tooth being coaxially disposed, and driven canine tooth is engaged with motor gear, and driven small The small tooth of First Transition is additionally provided with First Transition canine tooth on tooth engagement First Transition gear, First Transition gear, first mistake Cross small tooth and engage and be additionally provided with the small tooth of the second transition on the second transition canine tooth on the second transition gear, the second transition gear, this Incoming gear wheel on the small tooth engagement output shaft of two transition；The First Transition gear is arranged on the axis of motor, driven tooth Wheel and the second transition gear are placed between First Transition gear and output shaft, and driven gear and the second transition gear are coaxially pacified Dress；The mesopore of the driven gear is provided with driven inside groove, and the mesopore of First Transition gear also is provided with the first inside groove, driven interior Lubricant is embedded with groove and the first inside groove.

Such scheme is further：The driven inside groove and the first inside groove are annular groove form.

Such scheme is further：The driven canine tooth of the driven gear and driven small tooth are integrally formed, and the first mistake The First Transition canine tooth and the small tooth of First Transition crossed on gear is also to be integrally formed.

After said structure, the utility model not only compact conformation, small, ease of assembly is used, high transmission accuracy, Working stability；The mesopore of driven gear is provided with driven inside groove, and the mesopore of First Transition gear also is provided with the first inside groove, driven Lubricant is embedded with inside groove and the first inside groove, so that increase durable lubricity between gear mesopore and axle, protection steering wheel work Performance and used life.

Brief description of the drawings：

Accompanying drawing 1 is the utility model one example structure schematic diagram；

Accompanying drawing 2 is the driven gear structural representation of Fig. 1 embodiments；

Accompanying drawing 3 is the First Transition gear structure schematic diagram of Fig. 1 embodiments.

Embodiment：

The technique effect of design of the present utility model, concrete structure and generation is made furtherly below with reference to accompanying drawing It is bright, to be fully understood from the purpose of this utility model, feature and effect.

Refering to shown in Fig. 1,2,3, being preferred embodiment schematic diagram of the present utility model, the utility model is about a kind of steering wheel Loss prevention protection structure, includes upper casing 1, middle shell 2, lower casing 3 and middle seat 4, and middle seat 4 is placed in upper casing 1, middle shell 2 and lower casing 3 and surrounded In the cavity of formation, middle seat 4 is provided with motor 5 and potentiometer 6, compact conformation side by side on one end of middle shell 2.Motor 5 Dynamic motor gear 51 drives output shaft 7 by gear train, and potentiometer 6 and output shaft 7 are coaxially connected；Gear train and output shaft 7 Seat 4 is distributed on one end of upper casing 1, output shaft 7 is provided with incoming gear wheel 71, output pinion 72, incoming canine tooth Wheel 71 and output pinion 72 are split at the two ends of output shaft 7, and output pinion 72 passes upper casing 1.The gear train include from Moving gear 81, First Transition gear 82, the second transition gear 83, driven gear 81 have the He of driven canine tooth 811 being coaxially disposed Driven small tooth 812, driven canine tooth 811 is engaged with motor gear 51, and the on driven small tooth 812 engagement First Transition gear 82 The small tooth 822 of First Transition, the small engagement of tooth 822 second of the First Transition are additionally provided with one transition canine tooth 821, First Transition gear 82 The small tooth 832 of the second transition, second mistake are additionally provided with the second transition canine tooth 831 on transition gear 83, the second transition gear 83 The incoming gear wheel 71 crossed on the small engagement of tooth 832 output shaft 7.The First Transition gear 82 is arranged on the axis of motor 5, from The transition gear 83 of moving gear 81 and second is placed between First Transition gear 82 and output shaft 7, and the mistake of driven gear 81 and second Gear 83 is crossed to be co-axially mounted.Mesopore of the mesopore of the driven gear 81 provided with driven inside groove 813, and First Transition gear 82 It also is provided with being embedded with lubricant in the first inside groove 823, the driven inside groove 823 of inside groove 813 and first.Lubricant is in gear mesopore and axle Between persistently give and lubricate when relatively rotating, prevent dry combustion method, reduction abrasion, protection steering wheel service behaviour and service life.Fig. 2,3 Shown, further, the driven inside groove 823 of inside groove 813 and first is preferably annular groove form, can there is one or more, annular design, Meet the circumference of synchronous oilgear mesopore and axle.Driven gear 81 and the transmission efficiency of First Transition gear 82 is set to be strengthened； And the transition gear 83 of driven gear 81 and second is co-axially mounted, the profit between the second transition gear 83 and axle can be equally strengthened It is sliding.

Fig. 2, shown in 3, in the present embodiment, the driven canine tooth 811 of the driven gear 81 and the one of driven small tooth 812 into The small tooth 822 of First Transition canine tooth 821 and First Transition in type, and First Transition gear 82 is also to be integrally formed.So as to change The alignment and structural, high transmission accuracy of kind stacking gear, working stability reduce gear beat, equally have loss prevention protection, Coordinate above-mentioned continuous lubrication, further protect steering wheel, lift the service behaviour and service life of steering wheel.

Certainly, the utility model can also have other various embodiments, spiritual and its essence without departing substantially from the utility model In the case of, those skilled in the art work as can make various corresponding changes and modification, but these according to the utility model Corresponding change and deformation should all belong to the scope of the claims appended by the utility model.

Claims (3)

1. steering wheel loss prevention protection structure, includes upper casing（1）, middle shell（2）, lower casing（3）And middle seat（4）, middle seat（4）It is placed in Shell（1）, middle shell（2）And lower casing（3）Surround in the cavity to be formed, middle seat（4）Close to middle shell（2）One end on electricity is installed side by side Machine（5）And potentiometer（6）, motor（5）The motor gear of linkage（51）Output shaft is driven by gear train（7）, potentiometer（6）With Output shaft（7）It is coaxially connected；It is characterized in that：The gear train and output shaft（7）It is distributed in middle seat（4）Close to upper casing（1）'s On one end, output shaft（7）It is provided with incoming gear wheel（71）, output pinion（72）, incoming gear wheel（71）With the small tooth of output Wheel（72）Split in output shaft（7）Two ends, output pinion（72）Pass upper casing（1）；The gear train includes driven gear （81）, First Transition gear（82）, the second transition gear（83）, driven gear（81）With the driven canine tooth being coaxially disposed （811）With driven small tooth（812）, driven canine tooth（811）With motor gear（51）Engagement, and driven small tooth（812）Engagement first Transition gear（82）On First Transition canine tooth（821）, First Transition gear（82）On be additionally provided with the small tooth of First Transition（822）, The small tooth of the First Transition（822）Engage the second transition gear（83）On the second transition canine tooth（831）, the second transition gear（83） On be additionally provided with the small tooth of the second transition（832）, the small tooth of the second transition（832）Engage output shaft（7）On incoming gear wheel（71）； The First Transition gear（82）Installed in motor（5）Axis on, driven gear（81）With the second transition gear（83）It is placed in First Transition gear（82）And output shaft（7）Between, and driven gear（81）With the second transition gear（83）It is co-axially mounted；It is described Driven gear（81）Mesopore be provided with driven inside groove（813）, and First Transition gear（82）Mesopore also be provided with the first inside groove （823）, driven inside groove（813）With the first inside groove（823）In be embedded with lubricant.

2. steering wheel loss prevention protection structure according to claim 1, it is characterised in that：The driven inside groove（813）With first Inside groove（823）For annular groove form.

3. steering wheel loss prevention protection structure according to claim 1, it is characterised in that：The driven gear（81）It is driven big Tooth（811）With driven small tooth（812）It is integrally formed, and First Transition gear（82）On First Transition canine tooth（821）With The small tooth of one transition（822）It is also to be integrally formed.