CN207868936U - A kind of coffee machine gear-box - Google Patents

Abstract

The utility model discloses a kind of coffee machine gear-boxes, including motor and transmission case, transmission case includes transmission case bottom plate and transmission boxboard lid, transmission case bottom plate is equipped with output shaft, driven spindle and rotation axis, output shaft, driven spindle and rotation axis install intermeshing first gear respectively, second gear and third gear, the output torque of gear-box can be enhanced, the shaft that transmission case occurs by foreign matter stall is avoided to loosen hidden danger, the end cap of motor is equipped with magnetic sheet and magnet steel, make full use of motor inner space, reduce the volume of magnetic sheet while motor magnetic torque demand can be met, the quadrangle of movable square groove is provided with heat dissipation circular groove, movable square groove can be allowed it will not to be caused to be deformed or rupture because of the fever expansion of magnet steel, extend the service life of motor；The motor of gear-box provides torque, slows down and amplifies output torque through transmission case, larger torque can be exported in the case where motor speed is low, has the advantages that reduction ratio is big, rotating speed is low, torque is big.

Description

A kind of coffee machine gear-box

Technical field

The utility model is related to a kind of gear-box, especially a kind of coffee machine gear-box.

Background technology

In existing automatic coffee machine, the design gear of coffee machine inner teeth roller box is metal gear, is caused in coffee Machine sends out prodigious noise when working, and the rotary gear shaft inside coffee machine is designed as single arm structure, the transmission of entire rotary gear shaft Intensity is insufficient, when gear-box output torque is larger, fixed rotary gear shaft may be caused to loosen, in addition the built-in motor of gear-box is Meet the needs of magnetic torque, can increase motor internal magnets thickness and width, cause the volume of motor need it is corresponding expand, So that the structure of coffee machine is excessively too fat to move.

Invention content

For overcome the deficiencies in the prior art, a kind of output torque intensity height of the utility model offer, built-in motor meet Magnetic torque requires and small coffee machine gear-box.

Technical solution adopted by the utility model to solve its technical problems is：

A kind of coffee machine gear-box, including motor and transmission case, the transmission case include transmission case bottom plate and transmission boxboard Lid, the transmission case bottom plate connect the transmission boxboard lid by a rivet, the transmission case bottom plate be arranged in order be equipped with it is defeated Shaft, driven spindle and rotation axis, the output shaft, driven spindle and rotation axis are separately installed with first gear, second gear With third gear, the first gear is engaged with the second gear, and the second gear is engaged with the third gear, described Transmission case bottom plate is equipped with the connection cover being connected with the rotation axis, the motor installation backwards to the plate face of the transmission boxboard lid In the connection cover.

The output shaft is equipped with axle sleeve and bearing, and the axle sleeve is installed in the bottom of the first gear, the bearing It is installed in the top of the first gear.

The motor, including stator and rotor, the rotor include protective shell and end cap, and the protective shell ring set is described The bottom of end cap lateral wall, the stator include fixed disk, and the fixed disk is provided with open tubular column, the open tubular column lateral wall Top is equipped with coil block；Setting is fluted at the top and bottom of the madial wall of the open tubular column, be separately installed with upper bearing (metal) and Lower bearing, the end cap are provided with the shaft core for being inserted into the upper bearing (metal) and the lower bearing, and the shaft core stretches out the lower bearing Position be provided with fixed mechanism, movable square groove is provided at the top of the end cap, the quadrangle of the activity square groove is provided with heat dissipation Circular groove, the activity square groove are equipped with magnet steel, and the sidewall bottom of the end cap is provided with crenel, and the recess portion of the crenel is inlayed There is magnetic sheet.

The fixed mechanism is clamp spring.

The connection type of the protective shell and the end cap is interference fit.

The coil block includes coil and coil rack, and the coil rack is nested in the top of the lateral wall, institute Coil is stated on the holder of the coil rack, the coil is connected with conducting wire.

The utility model has the beneficial effects that：The utility model includes motor and transmission case, and transmission case includes transmission case bottom Plate and transmission boxboard lid, transmission case bottom plate, which is arranged in order, is equipped with output shaft, driven spindle and rotation axis, output shaft, from turn Axis and rotation axis install intermeshing first gear, second gear and third gear respectively, can enhance the fixation of driven spindle The output torque of intensity and gear-box, because the hidden danger of shaft loosening, the end of motor occurs in foreign matter stall when transmission case being avoided to operate It is provided with movable square groove and magnet steel at the top of lid, makes full use of motor inner space, the magnetic force of magnetic sheet and magnet steel is mutually folded Add, reduces the size of magnetic sheet while motor magnetic torque demand can be met, to reduce the volume of entire gear-box, movable square groove Quadrangle be provided with heat dissipation circular groove, movable square groove can be allowed it will not to be caused to be deformed or break because of the fever expansion of magnet steel It splits, extends the service life of motor；Gear-box is may be used in automatic coffee machine, and motor provides torque and slows down and put through transmission case Big output torque can export larger torque in the case where motor speed is low, and it is excellent to have that reduction ratio is big, rotating speed is low, torque is big Point.

Description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the sectional view of the utility model；

Fig. 2 is the structural schematic diagram of motor；

Fig. 3 is the sectional view of motor；

Fig. 4 is the sectional view of rotor；

Fig. 5 is the sectional view of stator.

Specific implementation mode

Referring to figs. 1 to Fig. 5, a kind of coffee machine gear-box, including motor 1 and transmission case 2, the transmission case 2 include transmission Bottom plate 3 and transmission boxboard lid 4, the transmission case bottom plate 3 connects the transmission boxboard lid 4, the transmission case by a rivet 5 Bottom plate 3, which is arranged in order, is equipped with output shaft 6, driven spindle 7 and rotation axis 8, the output shaft 6, driven spindle 7 and rotation axis 8 It is separately installed with first gear 9, second gear 10 and third gear 11, the first gear 9 is engaged with the second gear 10, The fixing intensity for enhancing driven spindle 7, because the hidden danger of shaft loosening occurs in foreign matter stall when transmission case being avoided to operate, described the Two gears 10 are engaged with the third gear 11, can enhance the torsion strength of third gear 11, the transmission case bottom plate 3 is backwards to institute The plate face for stating transmission boxboard lid 4 is equipped with the connection cover 12 being connected with the rotation axis 8, and the motor 1 is mounted on the connection In lid 12.

The output shaft 6 is equipped with axle sleeve 13 and bearing 14, and the axle sleeve 13 is installed in the bottom of the first gear 9, The bearing 14 is installed in the top of the first gear 9.

The motor 1, including stator and rotor, the rotor include protective shell 15 and end cap 16,15 ring of the protective shell It is sleeved on the bottom of 16 lateral wall of the end cap, the stator includes fixed disk 17, and the fixed disk 17 is provided with open tubular column, described Coil block is installed at the top of open tubular column lateral wall；Setting is fluted at the top and bottom of the madial wall of the open tubular column, respectively Upper bearing (metal) 18 and lower bearing 19 are installed, the end cap 16 is provided with the shaft core for being inserted into the upper bearing (metal) 18 and the lower bearing 19 20, the position that the shaft core 20 stretches out the lower bearing 19 is provided with fixed mechanism 21, and 16 top of the end cap is provided with activity The quadrangle of square groove 22, the activity square groove 22 is provided with heat dissipation circular groove, and the activity square groove 22 is equipped with magnet steel 23, the end The sidewall bottom of lid 16 is provided with crenel 24, and the recess portion of the crenel 24 is inlaid with magnetic sheet 25.The fixed mechanism 21 is clamp spring, Play position-limiting action.The connection type of the protective shell 15 and the end cap 16 is interference fit.The coil block includes coil 26 and coil rack 27, the coil rack 27 is nested in the top of the lateral wall, and the coil 26 is mounted on the coil On the holder of skeleton 27, the coil 26 is connected with conducting wire, and the coil rack 27 is internally provided with piezoresistor, can enhance The anti-electromagnetic interference capability of motor.

In the present embodiment, the bottom of end cap is provided with 10 movable square grooves and 6 pieces of magnet steels, can make full use of in motor Portion space, magnetic sheet and magnet steel are permanent magnet, and the magnetic force of magnetic sheet and magnet steel is overlapped mutually, and can meet motor magnetic torque demand While reduce magnetic sheet size, to reduce the volume of entire gear-box, the quadrangle of movable square groove is provided with heat dissipation circular groove, electricity When machine is run, movable square groove can be allowed it will not to be caused to be deformed or rupture because of the fever expansion of magnet steel, extend motor Service life；The utility model is may be used in automatic coffee machine, is mainly used in coffee machine and is regulated and controled coffee dose, motor Torque is provided and slows down and amplify output torque through transmission case, larger torque can be exported in the case where motor speed is low, has and subtracts The advantage that speed ratio is big, rotating speed is low, torque is big.

Above embodiment cannot limit the protection domain of the invention, and the personnel of professional skill field are not departing from In the case of the invention general idea, the impartial modification and variation done still fall within the range that the invention is covered Within.

Claims (6)

1. a kind of coffee machine gear-box, including motor（1）And transmission case（2）, the transmission case（2）Including transmission case bottom plate（3） With transmission boxboard lid（4）, the transmission case bottom plate（3）Pass through a rivet（5）Connect the transmission boxboard lid（4）, feature exists In the transmission case bottom plate（3）It is arranged in order and output shaft is installed（6）, driven spindle（7）And rotation axis（8）, the output shaft （6）, driven spindle（7）And rotation axis（8）It is separately installed with first gear（9）, second gear（10）With third gear（11）, institute State first gear（9）With the second gear（10）Engagement, the second gear（10）With the third gear（11）Engagement, institute State transmission case bottom plate（3）Backwards to the transmission boxboard lid（4）Plate face be equipped with and the rotation axis（8）Connected connection cover （12）, the motor（1）Mounted on the connection cover（12）It is interior.

2. coffee machine gear-box according to claim 1, it is characterised in that the output shaft（6）Axle sleeve is installed（13）With Bearing（14）, the axle sleeve（13）It is installed in the first gear（9）Bottom, the bearing（14）It is installed in first tooth Wheel（9）Top.

3. coffee machine gear-box according to claim 1, it is characterised in that the motor（1）, including stator and rotor, institute It includes protective shell to state rotor（15）And end cap（16）, the protective shell（15）Ring set is in the end cap（16）The bottom of lateral wall, The stator includes fixed disk（17）, it is characterised in that the fixed disk（17）It is provided with open tubular column, the open tubular column lateral wall Top coil block is installed；Setting is fluted at the top and bottom of the madial wall of the open tubular column, is separately installed with upper bearing (metal) （18）And lower bearing（19）, the end cap（16）It is provided with and is inserted into the upper bearing (metal)（18）With the lower bearing（19）Shaft core （20）, the shaft core（20）Stretch out the lower bearing（19）Position be provided with fixed mechanism（21）, the end cap（16）Top It is provided with movable square groove（22）, the activity square groove（22）Quadrangle be provided with heat dissipation circular groove, the activity square groove（22）Installation There is magnet steel（23）, the end cap（16）Sidewall bottom be provided with crenel（24）, the crenel（24）Recess portion be inlaid with magnetic Piece（25）.

4. coffee machine gear-box according to claim 3, it is characterised in that the fixed mechanism（21）For clamp spring.

5. coffee machine gear-box according to claim 3, it is characterised in that the protective shell（15）With the end cap（16） Connection type be interference fit.

6. coffee machine gear-box according to claim 3, it is characterised in that the coil block includes coil（26）And line Ring framework（27）, the coil rack（27）It is nested in the top of the lateral wall, the coil（26）Mounted on the coil Skeleton（27）Holder on, the coil（26）It is connected with conducting wire.