CN209016875U - A kind of anti-jamming intelligent driver - Google Patents

Abstract

This application involves a kind of anti-jamming intelligent drivers, belong to exclusion furnace, the stove parts technical field of smoke.Including motor, worm screw, worm gear, the motor output end is connected with worm screw, and interior ball bearing is set on the connecting pin of worm screw and motor output end, worm and wheel engagement, is connected with output shaft on worm gear, the power output outside from motor can be realized.The application is applied on the kitchen range such as kitchen ventilator, the operation is stable, and can effectively evade the stuck phenomenon of the output elements such as push rod.

Description

A kind of anti-jamming intelligent driver

Technical field

This application involves a kind of anti-jamming intelligent drivers, belong to exclusion furnace, the stove components technology neck of smoke Domain.

Background technique

With the raising of quality of residents'life, kitchen ventilator gradually steps into huge numbers of families, for purification kitchen environment, improves food Process safety etc. brings very big improvement.In kitchen ventilator use process, the turnover panel (turnover door) in structure is mainly risen To the effect for collecting oil smoke, however, with the increase of oil smoke amount, using the extension of time, having in reprint hot and cold can gradually increase Add, when reaching a certain amount of, kitchen ventilator catharsis is no longer obvious.Therefore, it is necessary to be cleaned to turnover panel, and when not in use It is packed up, however the turnover device of conventional turnover panel mainly uses L-type (such as ZL 2008202196242), U-shaped, shaft card slot Although (such as ZL 022674055), these turnover panels may be implemented to overturn, but that there are areas occupied is big, noise is big, overturning low efficiency The defects of.

As the improvement project carried out to existing turnover device, the turner that ZL 201520264642.2 is provided not only is accounted for It is small with area, and overturning and lift action can be achieved at the same time, but discovery in use: its pull head is after retracting stall, motor Play, armature spindle and oiliness bearing compress forward for rotor and worm screw, and pressure and frictional force increase are stuck.Especially when motor is suitable When clockwise rotation drives worm gear to go to extreme position (nut moves to extreme position), worm gear becomes retainer, prevents snail Bar continues to rotate.This when, it is mobile to axis direction to force worm screw due to the effect of worm spiral lift angle, and drives electricity Machine rotor moves together, until the oiliness bearing plane on rotor top to motor housing end cap turns motionless.Thus Cause rotor end face to be formed with the contact of pretightning force with the oiliness bearing on motor housing end cap, makes to produce between two end faces Bigger frictional force has been given birth to, self-locking state has occurred, has become maximum resistance when motor rotates backward.

Based on this, the application is made.

Utility model content

For drawbacks described above present in existing driving mechanism, the application provide one kind can effectively prevent it is self-locking it is stuck, disappear Except the anti-jamming intelligent driver of the motor reversal resistance of start.

To achieve the above object, the technical solution that the application takes is as follows:

A kind of anti-jamming intelligent driver, including motor, worm screw, worm gear, the motor output end are connected with worm screw, and snail Interior ball bearing is set on the connecting pin of bar and motor output end, worm and wheel engages, and is connected with output shaft on worm gear, i.e., The power output outside from motor can be achieved.

Further, as preferred:

Outer ball bearing, the setting of outer ball bearing, by output shaft and worm gear are set between the worm gear and output shaft Between end face friction become rolling friction between worm gear and outer ball bearing, outer ball bearing and output shaft, friction reduces, It avoids and kills phenomenon in power transmit process.

The motor outer is equipped with casing, and the output end of motor is terminal, and terminal picks out worm screw, and interior ball bearing is sleeved on Between terminal and casing.It is planar friction between output end and worm screw in motor power output, when worm screw releases, this is flat Face, which rubs, will lead to the deadlock phenomenon of moment, therefore, just can have the phenomenon that worm screw can not be successfully release generation when starting.This Shen Please between terminal and worm screw, especially between terminal and casing be set in ball bearing, not only improve make full use of casing with Redundant space between terminal avoids additionally occupying motor and worm screw installation space, and realizes planar friction to spherical surface friction Conversion, prevented deadlock phenomenon generation.

It is connected with transmission shaft on the worm gear, is connected between transmission shaft and output shaft with union, and union and output shaft, connection It covers and is connected between transmission shaft with engaging tooth engagement.Worm gear is rotated with worm screw, transmission shaft can be driven to rotate synchronously therewith, Under the engagement of union, power is sent to output shaft；And can be according to the needs of installation space, the appropriate length for changing union Degree, i.e., the length of changeable transmission shaft and output shaft entirety, and then meet the requirement of different installation spaces.It is furthermore preferred that The transmission shaft and the concentric setting of worm gear.Concentric setting is conducive to the accuracy and stability of transmission, avoids the occurrence of torque It generates.It is set with internal axle sleeve on the transmission shaft, outer ball bearing, internal axle sleeve are set on the transmission shaft between internal axle sleeve and worm gear With transmission between centers to engage tooth engagement, union one end engages tooth engagement with internal axle sleeve, and the other end is nibbled with engaging tooth and output shaft It closes.In transmission process, since there are distances between transmission shaft and output shaft, and the two is not integral structure, and internal axle sleeve is set Set, keep the structure of transmission shaft more stable, outer ball bearing is mounted between internal axle sleeve and worm gear, become internal axle sleeve and worm gear it Between face friction be ball friction, avoid the generation for killing phenomenon, while internal axle sleeve being engaged on to transmission in a manner of engaging tooth On axis, union is engaged on internal axle sleeve, enhances the mounting stability of union and transmission shaft.

It is provided with housing on the outside of the transmission shaft, when installation, transmission shaft is set with internal axle sleeve on one end of worm gear, interior Sleeve lining is engaged with transmission shaft, and outside is engaged with union, and the union other end is engaged with output shaft, position corresponding with housing in union Set (be no more than union and output shaft site of engagement be it is preferred, facilitate the assembly of output shaft) be caught in cutting ferrule, card sleeve clamp, which is mounted in, to be joined Between set and housing；It is preferred that being embedded in outer shaft on the inside of cutting ferrule, cutting ferrule, outer shaft are installed between union and housing, realize cover The fixation of shell and union.

The motor is provided with casing, and worm screw is provided with worm set, and worm gear is provided with worm gear set, and (worm gear set and worm set can Setting is an integral structure, and may be alternatively provided as split type structure), housing, said machine casing, worm set, snail is arranged in transmission shaft outside The setting of wheel case and housing not only ensure that the stability of above-mentioned power part, transmission parts working environment, but also to above-mentioned component It is protected.

In use, electric motor starting can impart power to worm screw through its output end, and worm and wheel engages, Worm gear rotation, and in rotation power is sent to output shaft through transmission shaft, specific component is installed on output shaft, so that it may band Dynamic corresponding specific component operating.Wherein, ball bearing carries out transition connection at electric motor end cap i.e. between terminal and casing, First time power transmit when, by end face contact between sliding friction be converted to rolling friction, greatly reduce between two parts Frictional force, prevented formation self-locking between motor output end and worm screw, eliminated resistance of start when motor reversal, so that it may Fundamentally solve the problems, such as the stuck of worm screw；Outer ball bearing is set on transmission shaft, when second of power transmits, by end face Sliding friction between contact is converted to rolling friction, greatly reduces the frictional force between two parts, prevents worm gear and transmission Self-locking formation between axis, solves the problems, such as the stuck of transmission shaft from transmission path.The setting of union, realize transmission shaft with it is defeated The separation of shaft is suitable for more operating environment demands.

The application is applied on the kitchen range such as kitchen ventilator, sample verifying is carried out, the results showed that 20 motor assembly JQ moneys push away Bar, idle running detect OK；Using limiting voltage detection method, retract with the maximum voltage 30V of D.C. regulated power supply stifled Turn, is released with the smallest starting voltage 3V of motor, 20 detection OK；It is equally detected with limiting voltage, tests inventory JQ money It push rod 50, can not stretch out after whole stalls.Verified explanation can effectively evade push rod etc. using the application driving mechanism The stuck phenomenon of output element.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the application；

Fig. 2 is the diagrammatic cross-section of the application；

Fig. 3 is A-A directional profile figure in Fig. 1；

Fig. 4 is B-B directional profile figure in Fig. 1；

Fig. 5 is the diagrammatic cross-section of motor in the application.

Figure label: 1. motors；11. casing；12. terminal；13. end cap；2. worm screw；21. worm set；3. snail Wheel；31. worm gear set；4. transmission shaft；41. union；42. cutting ferrule；43. engaging tooth；4a. engaging tooth one；4b. engaging tooth Two；4c. engaging tooth three；44. internal axle sleeve；45. outer shaft；5. output shaft；6. housing；7. outer ball bearing；Rolling in 8. Pearl bearing.

Specific embodiment

Embodiment 1

The anti-jamming intelligent driver of the present embodiment, in conjunction with Fig. 1 and Fig. 5, including motor 1, worm screw 2, worm gear 3, motor 1 it is defeated Outlet is connected with worm screw 2, and is set with interior ball bearing 8, worm screw 2 and worm gear 3 on the connecting pin of worm screw 2 and 1 output end of motor It engages, is connected with output shaft 5 on worm gear 3, the transmitting of power from 3 → output shaft of motor 1 → worm screw, 2 → worm gear 5 can be realized, most The outside output of the specific instrument such as push rod through being installed on output shaft 5 eventually.

To realize that more using effects, above scheme can also add as follows:

In conjunction with Fig. 2, outer ball bearing 7 is set between worm gear 3 and output shaft 5, the setting of outer ball bearing 7 will export End face friction between axis 5 and worm gear 3 becomes the rolling between worm gear 3 and outer ball bearing 7, outer ball bearing 7 and output shaft 5 Friction, friction reduce, and avoid and kill phenomenon in power transmission.

To realize that more using effects, above scheme can also add as follows:

In conjunction with Fig. 5, casing 11 is set with outside motor 1, the output end of motor 1 is terminal 12, and terminal 12 picks out worm screw 2, interior Ball bearing 8 is sleeved between terminal 12 and casing 11.In 1 power output of motor, rub between output end and worm screw 2 for plane It wipes, when worm screw 2 releases, which will lead to the deadlock phenomenon of moment, and therefore, just can have worm screw 2 when starting can not The phenomenon that smoothly releasing.The application rolls in being set between terminal 12 and worm screw 2, especially between terminal 12 and casing 11 Pearl bearing 8 not only improves the redundant space made full use of between casing 11 and terminal 12, avoids additionally occupying motor 1 and worm screw 2 Installation space, and realize the conversion of planar friction to spherical surface friction, prevented the generation of deadlock phenomenon.

End cap 13 can also be further arranged in above scheme: end cap 13 is movably installed in 11 end of casing, and is located at snail The opposite side of bar 2.The setting of end cap 13, it can be achieved that motor 1 open installation, not only facilitated installation, but also be conducive to divulge information.

To realize that more using effects, above scheme can also add as follows: in conjunction with Fig. 2 and Fig. 3, worm gear Transmission shaft 4 is connected on 3, with the connection of union 41 between transmission shaft 4 and output shaft 5, and union 41 and output shaft 5, union 41 with It is engaged and is connected with engaging tooth 43 between transmission shaft 4.Worm gear 3 is rotated with worm screw 2, and transmission shaft 4 can be driven to rotate synchronously therewith, Under the engagement of union 41 therewith, power is sent to output shaft 5；According to the needs of installation space, suitably change union 41 length, i.e., changeable transmission shaft 4 length whole with output shaft 5.

Above scheme can also be further provided that in conjunction with Fig. 2, transmission shaft 4 and the concentric setting of worm gear 1.Coaxially Heart setting, is conducive to the accuracy and stability of transmission, avoids the occurrence of torque generation.

Above scheme can also be further provided that in conjunction with Fig. 3, be set with internal axle sleeve 44, internal axle sleeve on transmission shaft 4 Outer ball bearing 7 is set between 44 and worm gear 3, outer ball bearing 7 is sleeved on transmission shaft 4, between internal axle sleeve 44 and transmission shaft 4 with One 4a of engaging tooth engagement, 41 one end of union are engaged with internal axle sleeve 44 with two 4b of engaging tooth, and the other end is with three 4c of engaging tooth and output Axis 5 engages, one 4a of engaging tooth, two 4b of engaging tooth, three 4c of engaging tooth constitute union 41 and output shaft 5, union 41 and transmission shaft 4 it Between engaging tooth 43.In transmission process, due between transmission shaft 4 and output shaft 5 there are distance, and the two and non-Unitary knot Structure, the setting of internal axle sleeve 44 keep the structure of transmission shaft 4 more stable, and outer ball bearing 7 is mounted on internal axle sleeve 44 and worm gear 3 Between, the face become between internal axle sleeve 44 and worm gear 3 rubs as ball friction, avoids the generation for killing phenomenon, while by internal axle sleeve 44 are mounted on transmission shaft 4 with engagement system, and union 41 is engaged on internal axle sleeve 44, enhance the peace of union 41 Yu transmission shaft 4 Fill stability.To be easy for installation, internal axle sleeve 44 may be configured as horizontal T-type structure, and closing is formed when union 41 is engaged with Relationship.

Above scheme can also further be provided that in conjunction with Fig. 2, be provided with housing 6 on the outside of transmission shaft 4, when installation, Transmission shaft 4 is set with internal axle sleeve 44 on one end of worm gear 3, and 44 inner wall of internal axle sleeve is engaged with transmission shaft 4, outside and union 41 Engagement, 41 other end of union are engaged with output shaft 5, with 6 corresponding position of housing (to be no more than union 41 and output shaft in union 41 5 site of engagement be it is preferred, facilitate the assembly of output shaft 5) be caught in cutting ferrule 42, and on the inside of cutting ferrule 42 be embedded in outer shaft 45, cutting ferrule 42, outer shaft 45 is installed between union 41 and housing 6, realizes the fixation of housing 6 and union 41.

Above scheme can also be further provided that in conjunction with Fig. 2, and casing 11,2 outside of worm screw are arranged on the outside of motor 1 Worm set 21 is set, and setting worm gear set 31(worm gear set 31 and worm set 21 may be configured as integral structure on the outside of worm gear 3, can also It is set as split type structure), housing 6, said machine casing 11, worm set 21, worm gear set 31 and housing 6 are set on the outside of transmission shaft 4 Setting, not only ensure that the stability of above-mentioned power part, transmission parts working environment, but also protected to above-mentioned component.

In use, motor 1 starts, and worm screw 2 can be imparted power to through its output end, worm screw 2 nibbles with worm gear 3 It closing, worm gear 3 rotates, and sends power to output shaft 5 through transmission shaft 4 in rotation, specific component is installed on output shaft 5, Corresponding specific component operating can be driven.Wherein, ball bearing 8 at 1 end cap of motor i.e. between terminal 12 and casing 11 Transition connection is carried out, in the transmitting of first time power, the end face sliding friction between 1 output end of motor and worm screw 2 is converted to Rolling friction greatly reduces the frictional force between two parts, has prevented formation self-locking between 1 output end of motor and worm screw 2, Eliminate resistance of start when motor 1 inverts, so that it may fundamentally solve the problems, such as the stuck of worm screw 2；It is set on transmission shaft 4 outer End face contact slide friction between transmission shaft 4 and worm gear 3 is converted to rolling when second of power transmits by ball bearing 7 Friction, greatly reduces the frictional force between two parts, prevents formation self-locking between worm gear 3 and transmission shaft 4, from transmission path It is upper to solve the problems, such as the stuck of transmission shaft 4.The setting of union 41 realizes the separation of transmission shaft 4 Yu output shaft 5, is suitable for more Operating environment demand.

The application is applied on the kitchen range such as kitchen ventilator, sample verifying is carried out, ginseng is shown in Table 1.

Table 1 uses the use state table of comparisons of this programme

。

Test structure shows 20 push rods as specific output unit, running current, the locked rotor current of above-mentioned driving mechanism Without exception with operating condition, when being tested using limiting voltage, 30V voltage is retracted, and 3V voltage is released, and 20 push rods of ball bearing are complete Portion passes through, and illustrates that the program can effectively evade the stuck undesirable appearance of push rod, and do not have other undesirable conditions.

The application driving mechanism mainly improves the equal components of motor 1 in transmission, and the ball bearing being arranged is in electricity Power driven tools industrial application is very extensive, belongs to matured product, and Risks are not present.It is suitable after only needing to verify motor change With property and stability, putting technique parameter, production process, shape drawing etc. all do not change, and Material Cost changes smaller, process Cost does not increase, and push rod risk only needs to verify electrical machinery life again.

To sum up analyze: when taking above scheme, first, the cost declining thinking that active response is being carried out；Second, this scheme It not only can solve present stuck phenomenon, cost can also be reduced, killed two birds with one stone；Third, for using this scheme, both sides may be used Pressure in terms of to avoid inventory；4th, to this scheme, it is ensured that do not occur stuck situation.

The above content is the preferred embodiments of combination the invention to further detailed made by provided technical solution Describe in detail bright, and it cannot be said that the invention specific implementation is confined to these above-mentioned explanations, technology affiliated for the invention For the those of ordinary skill in field, without departing from the concept of the premise of the invention, several simple deductions can also be made Or replacement, it all shall be regarded as belonging to the protection scope of the invention.

Claims (9)

1. a kind of anti-jamming intelligent driver, it is characterised in that: including motor, worm screw, worm gear, the motor output end is connected with Worm screw, and interior ball bearing is set on the connecting pin of worm screw and motor output end, worm and wheel engages, and is connected on worm gear The power output outside from motor can be realized in output shaft.

2. a kind of anti-jamming intelligent driver as described in claim 1, it is characterised in that: covered between the worm gear and output shaft Equipped with outer ball bearing.

3. a kind of anti-jamming intelligent driver as described in claim 1, it is characterised in that: the motor outer is equipped with casing, The output end of motor is terminal, and terminal picks out worm screw, and interior ball bearing is sleeved between terminal and casing.

4. a kind of anti-jamming intelligent driver as described in claim 1, it is characterised in that: the motor is provided with casing, snail Bar is provided with worm set, and worm gear is provided with worm gear set.

5. a kind of anti-jamming intelligent driver according to any one of claims 1-4, it is characterised in that: affixed on the worm gear There is transmission shaft, connected between transmission shaft and output shaft with union, and to engage between union and output shaft, union and transmission shaft Tooth engagement connection.

6. a kind of anti-jamming intelligent driver as claimed in claim 5, it is characterised in that: the transmission shaft and worm gear are concentric Setting.

7. a kind of anti-jamming intelligent driver as claimed in claim 5, it is characterised in that: be set with inner shaft on the transmission shaft It covers, the outer ball bearing of suit on the transmission shaft between internal axle sleeve and worm gear, internal axle sleeve is with transmission between centers to engage tooth engagement, union One end engages tooth engagement with internal axle sleeve, and the other end is engaged with engaging tooth with output shaft.

8. a kind of anti-jamming intelligent driver as claimed in claim 5, it is characterised in that: be provided with cover on the outside of the transmission shaft Shell, transmission shaft are set with internal axle sleeve on one end of worm gear, and internal axle sleeve inner wall is engaged with transmission shaft, and outside is engaged with union, The union other end is engaged with output shaft, is caught in cutting ferrule in union with housing corresponding position, and card sleeve clamp is mounted between union and housing.

9. a kind of anti-jamming intelligent driver as claimed in claim 8, it is characterised in that: be embedded in outer shaft on the inside of the cutting ferrule Set, cutting ferrule, outer shaft are installed between union and housing.