CN207017792U - A kind of gear motor protection device - Google Patents

Abstract

It the utility model is related to a kind of gear motor protection device.Intelligent lock field at present, because the gear motor in reducing motor is easily destroyed by external active force, influence the service life of gear motor in intelligent lock.A kind of gear motor protection device is the utility model is related to, wherein：Gear bush end face surrounding is fixedly installed ball recess, and gear bush is fixedly connected by gear bush fixing hole, gear shaft rod fixing hole with travelling gear, hex nut, and bead, bead spring, base rice screw are fixedly mounted in screw hole successively.The utility model has the advantage of：The D types power transmission shaft of reducing motor reduction box and the D type holes of gear bush form effective cooperation; reach transmission twisting force; bead is respectively charged into the screw hole of travelling gear; when external force promotes travelling gear by force; bead will deviate from spherical groove; travelling gear and gear bush will disengage skidding, form a set of effective gear clutch protective device, practical.

Description

A kind of gear motor protection device

Technical field

Intelligent door lock equipment technical field is the utility model is related to, especially a kind of gear motor protection device.

Background technology

At present, stepped up as society and people are horizontal, lockset gradually develops toward intelligent direction.With intelligence The popularization of lock, smart lock correlation technique are also constantly upgrading.It is related to many electronic equipments and part, intelligence in current smart lock It can lock and often be both provided with electronic slip lid, electronic slip lid is controlled by the reducing motor inside lockset, controls opening for electronic slip lid Open, but the gear motor technical field being related in current electronic slip lid, due to the gear motor in reducing motor easily by External active force destroys, and the gear in reduction box is all close-toothed little gear in addition, is easily easily destroyed by external force, influences intelligence The service life of gear motor in energy lockset, so as to influence the service life of whole intelligent lock, Shortcomings.

The content of the invention

The purpose of this utility model is to provide a kind of gear motor protection device, reducing motor above-mentioned to overcome the shortcomings of The D types power transmission shaft of reduction box and the D type holes of gear bush form effective cooperation, reach transmission twisting force, bead is respectively charged into In the screw hole of travelling gear, bead spring is then respectively pressed into, then with the dead bead spring of the locked spring top of base rice screw, finally Locked by hex nut, when external force promotes travelling gear by force, bead will deviate from spherical groove, travelling gear and gear Axle sleeve will disengage skidding, form a set of effective gear clutch protective device, device is reasonable in design, practical.

The technical solution of the utility model：A kind of gear motor protection device, including：Hex nut, gear shaft rod are fixed Hole, screw fixing hole, base rice screw, bead spring, bead, travelling gear, screw hole, power transmission shaft fixing hole, gear shaft rod, ball Connected in star, gear bush end face, gear bush, power transmission shaft, reduction box, motor, gear bush fixing hole；Wherein：Hex nut Top is fixedly installed screw fixing hole, is fixedly installed gear shaft rod fixing hole in the middle part of hex nut, base rice screw passes through spiral shell Silk fixing hole is fixedly connected with hex nut, and gear bush fixing hole, travelling gear end face are fixedly installed in the middle part of travelling gear Surrounding is fixedly installed screw hole, and gear bush is by power transmission shaft fixing hole, gear shaft rod, ball recess, gear bush end face group Into gear bush one end is fixedly installed gear shaft rod, and the gear bush other end is fixedly installed gear bush end face, gear shaft Set end face surrounding is fixedly installed ball recess, and power transmission shaft is fixedly installed in the middle part of gear shaft rod middle part, gear bush end face Fixing hole, reduction box one end are fixedly connected with motor, and the reduction box other end is fixedly connected with power transmission shaft, and power transmission shaft passes through rotary shaft Fixing hole is fixedly connected with gear bush, gear bush by gear bush fixing hole, gear shaft rod fixing hole and travelling gear, Hex nut is fixedly connected, and bead, bead spring, base rice screw are fixedly mounted in screw hole successively.

A kind of gear motor protection device, wherein：Bead spring, the quantity of bead are 6.

A kind of gear motor protection device, wherein：Power transmission shaft fixing hole, power transmission shaft use D type structure designs.

A kind of gear motor protection device, wherein：The depth of ball recess is 10mm.

The utility model has the advantage of：The D types power transmission shaft of reducing motor reduction box and the D type holes of gear bush formed with Effect coordinates, and reaches transmission twisting force, and bead is respectively charged into the screw hole of travelling gear, is then respectively pressed into bead spring, The dead bead spring of the locked spring top of base rice screw is used again, is locked finally by hex nut, when external force promotes travelling gear by force When, bead will deviate from spherical groove, and travelling gear and gear bush will disengage skidding, form a set of effective gear clutch and protect Protection unit, device is reasonable in design, practical.

Brief description of the drawings

Fig. 1 is structure schematic diagram of the present utility model.

Reference：Hex nut 1, gear shaft rod fixing hole 2, screw fixing hole 3, base rice screw 4, bead spring 5, glass Pearl 6, travelling gear 7, screw hole 8, power transmission shaft fixing hole 9, gear shaft rod 10, ball recess 11, gear bush end face 12, gear Axle sleeve 13, power transmission shaft 14, reduction box 15, motor 16, gear bush fixing hole 17.

Embodiment

Embodiment 1, referring to Fig. 1, a kind of gear motor protection device, including：Hex nut 1, gear shaft rod fixing hole 2nd, screw fixing hole 3, base rice screw 4, bead spring 5, bead 6, travelling gear 7, screw hole 8, power transmission shaft fixing hole 9, gear Axostylus axostyle 10, ball recess 11, gear bush end face 12, gear bush 13, power transmission shaft 14, reduction box 15, motor 16, gear bush Fixing hole 17；Wherein：The top of hex nut 1 is fixedly installed screw fixing hole 3, and the middle part of hex nut 1 is fixedly installed gear Axostylus axostyle fixing hole 2, base rice screw 4 are screwed hole 3 and are fixedly connected with hex nut 1, and the middle part of travelling gear 7 is fixedly installed Sprocket drive spindle covers fixing hole 17, and the end face surrounding of travelling gear 7 is fixedly installed screw hole 8, and gear bush 13 is fixed by power transmission shaft Hole 9, gear shaft rod 10, ball recess 11, gear bush end face 12 form, and the one end of gear bush 13 is fixedly installed gear shaft rod 10, the other end of gear bush 13 is fixedly installed gear bush end face 12, and the surrounding of gear bush end face 12 is fixedly installed spherical Groove 11, the middle part of gear shaft rod 10, the middle part of gear bush end face 12 are fixedly installed power transmission shaft fixing hole 9, reduction box 15 1 End is fixedly connected with motor 16, and the other end of reduction box 15 is fixedly connected with power transmission shaft 14, and power transmission shaft 14 passes through rotary shaft fixing hole 9 It is fixedly connected with gear bush 13, gear bush 13 passes through gear bush fixing hole 17, gear shaft rod fixing hole 2 and travelling gear 7th, hex nut 1 is fixedly connected, and bead 6, bead spring 5, base rice screw 4 are fixedly mounted in screw hole 8 successively.

Embodiment 2, referring to Fig. 1, a kind of gear motor protection device, wherein：Bead spring 5, the quantity of bead 6 are 6.Remaining is the same as embodiment 1.

Embodiment 3, referring to Fig. 1, a kind of gear motor protection device, wherein：Power transmission shaft fixing hole 9, power transmission shaft 14 are equal Using D type structure designs, effective cooperation can be formed, reaches transmission twisting force.Remaining is the same as embodiment 1.

Embodiment 4, referring to Fig. 1, a kind of gear motor protection device, wherein：The depth of ball recess 11 is 10mm.Its Remaining same embodiment 1.

Operation principle：First, by device install combine, by the power transmission shaft 14 of reduction box 15 by power transmission shaft fixing hole 9 with Gear bush 13 is fixedly connected, and gear bush 13 is passed through into gear bush fixing hole 17, gear shaft rod fixing hole 2 and travelling gear 7th, hex nut 1 is fixedly connected, and bead 6, bead spring 5, base rice screw 4 are fixedly mounted on into the end face four of travelling gear 7 successively In the screw hole 8 in week, fixed finally by hex nut 1, whole device installation；Power transmission shaft fixing hole 9, power transmission shaft 14 are equal Using D type structure designs, effective cooperation can be formed, reaches transmission twisting force, bead 6 is by uniformly principle loads driving cog respectively In the screw hole 8 of wheel 7, bead spring 6 is respectively pressed into, then withstands bead spring 5 with base rice screw 4 is locked again, finally by Hex nut 1 is locked, and is screwed hole 3 by 4 locked hex nut 1 of base rice screw；The tightness of hex nut 1 determines The use level of ball recess 11 on bead 6 and gear bush 13, so as to determine that travelling gear 7 will be by great torsion The thrust of bead 6 and spherical groove 11 on gear bush 13 can be overcome, when external force will promote travelling gear 7 by force, that is, pushed away Power, which is more than the thrust between spherical groove 11, bead 6 on bead 3 and gear bush 13, will deviate from spherical groove 11, be driven Gear 7 and gear bush 13 will disengage skidding, form a set of effective gear arrangement of clutch.If without clutch structure, work as biography Moving gear 7 will be applied directly on the reduction box 15 of motor 16 by during external force, and the gear of reduction box 15 is all that low module is small Gear, it is easy to by damage；So the clutch structure of this set travelling gear 7 can protect gear motor well；Other six Angle nut 1 has an adjustable advantage of dynamics, can be operated according to the flexible modulation that is sized to being actually needed to frictional force Property is good, and device is reasonable in design, practical.

Claims (4)

1. a kind of gear motor protection device, including：Hex nut（1）, gear shaft rod fixing hole（2）, screw fixing hole（3）、 Base rice screw（4）, bead spring（5）, bead（6）, travelling gear（7）, screw hole（8）, power transmission shaft fixing hole（9）, gear shaft Bar（10）, ball recess（11）, gear bush end face（12）, gear bush（13）, power transmission shaft（14）, reduction box（15）, motor （16）, gear bush fixing hole（17）；It is characterized in that：Hex nut（1）Top is fixedly installed screw fixing hole（3）, six Angle nut（1）Middle part is fixedly installed gear shaft rod fixing hole（2）, base rice screw（4）It is screwed hole（3）With hexagonal spiral shell It is female（1）It is fixedly connected, travelling gear（7）Middle part is fixedly installed gear bush fixing hole（17）, travelling gear（7）End face surrounding It is fixedly installed screw hole（8）, gear bush（13）By power transmission shaft fixing hole（9）, gear shaft rod（10）, ball recess（11）、 Gear bush end face（12）Composition, gear bush（13）One end is fixedly installed gear shaft rod（10）, gear bush（13）It is another End is fixedly installed gear bush end face（12）, gear bush end face（12）Surrounding is fixedly installed ball recess（11）, gear Axostylus axostyle（10）Middle part, gear bush end face（12）Middle part is fixedly installed power transmission shaft fixing hole（9）, reduction box（15）One end with Motor（16）It is fixedly connected, reduction box（15）The other end and power transmission shaft（14）It is fixedly connected, power transmission shaft（14）Consolidated by rotary shaft Determine hole（9）With gear bush（13）It is fixedly connected, gear bush（13）Pass through gear bush fixing hole（17）, gear shaft rod fixes Hole（2）With travelling gear（7）, hex nut（1）It is fixedly connected, bead（6）, bead spring（5）, base rice screw（4）It is solid successively Dingan County is mounted in screw hole（8）In.

A kind of 2. gear motor protection device according to claim 1, it is characterised in that：Bead spring（5）, bead（6） Quantity be 6.

A kind of 3. gear motor protection device according to claim 1, it is characterised in that：Power transmission shaft fixing hole（9）, transmission Axle（14）Use D type structure designs.

A kind of 4. gear motor protection device according to claim 1, it is characterised in that：Ball recess（11）Depth be 10mm。