CN201365163Y

CN201365163Y - Direct-drive electric straight-line reciprocating-movement device

Info

Publication number: CN201365163Y
Application number: CNU2008201319264U
Authority: CN
Inventors: 刘梦星
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-12
Filing date: 2008-08-12
Publication date: 2009-12-16
Anticipated expiration: 2018-08-12

Abstract

The utility model relates to a direct-drive electric straight-line reciprocating-movement device, and provides a novel device with simplified structure, less transmission links and wide application range, which is characterized in that a transmission nut is arranged on the inner wall of a cylinder shaft of a motor, and a reciprocating lead screw is screwed into a threaded hole of the transmission nut. When the motor rotates forwards and reversely, the lead screw can be directly driven to push and pull in a reciprocating way; when the motor is vertically installed, the forward-reversing rotation of the motor can lift or press the lead screw.

Description

The type that direct transfers electric linear reciprocator

Technical field:

The utility model relates to a kind of electronic push-pull device at fixed, specifically a kind of device that rotatablely moving of motor is changed into straight reciprocating motion.

Background technology:

Existing electric pushrod and screw mandrel type forcing press etc. are the electric-motor drive reducing gears of outer dress, and drive lead screw is reciprocating indirectly again, exists shortcomings such as structure is numerous and diverse, transmission link is many, mechanical efficiency is low.

Summary of the invention:

The utility model is for overcoming the deficiencies in the prior art, provides that a kind of designs simplification, transmission link are few, purposes brand-new device more widely.

The utility model is the type electric linear reciprocator that direct transfers, and it mainly includes motor, transmission nut, back and forth screw mandrel, balance set reach the anti-key of turning round.

The power transmission shaft of described motor is a cylinder type, according to the electromagnetic load of motor equal the iron core internal diameter square with the principle of the product of core length, expanded motor iron core diameter, dwindle core length, make described motor that enough cartridge type axle occupy-places arranged with power lower rotor part core center, increase the wire casing number that iron core diameter can increase winding simultaneously, can increase the number of pole-pairs of winding, reduce motor speed.

The transmission nut of copper alloy system is fitted in the inwall of cartridge type axle one end, and motor rotor core, cartridge type axle, transmission nut three are become one.

The interior circular hole of the motor other end bearing end cover relative with transmission nut press-fits the circular ring type balance set of a copper alloy system, its effect is the balance that keeps reciprocal screw mandrel, the two ends of its interior circular hole are along should be the above acute angle of R8, hang phenomenon in order to avoid back and forth retaining occurs during screw mandrel dealing campaign within it, its interior circular hole is carved with one vertically prevents turning round keyway.

Back and forth screw mandrel is carved with the anti-keyway of turning round vertically, and reciprocal screw mandrel spinning is entered the silk hole of transmission nut, and makes and pass cartridge type axle and balance set, makes reciprocal screw mandrel relative with balance set two keyways, will prevent turning round in the key mounting groove, twists to prevent reciprocal screw mandrel.

During the forward and reverse rotation of motor rotor, the transmission nut directly reciprocal screw mandrel of turn protracts or retreats, and has the push-and-pull function.

Motor erect is installed, reciprocal screw mandrel is stood up and down, during the forward and reverse rotation of motor, the directly reciprocal screw mandrel rising of turn or press down of transmission nut.

The deceleration of motor can change supply frequency by increasing the motor windings number of pole-pairs, increases method realizations such as coil impedance.

Transmission nut such as need are during than the slow-speed of revolution, can be with motor and reducing gear multi pack, cartridge type axle one end of motor can be directly as the axle that advances of reducing gear, the shaft of reducing gear should be the cartridge type axle, transmission nut is installed in the inwall of reducing gear cartridge type axle, back and forth the screw mandrel spinning is in it, and during the forward and reverse rotation of rotor, but the reciprocal screw mandrel of transmission nut turn after the deceleration advances or retreats.

In the end of reciprocal screw mandrel, buffer spring and push-and-pull overload cut-out can be installed as required, the action of switch contact is the compression displacement realization by buffer spring.

Near the end adjustable type travel switch is installed at reciprocal screw mandrel, in order to the safe operation protection and the automatic operating of device.

Description of drawings:

Fig. 1 is the type electric linear reciprocator profile that direct transfers.

Fig. 2 is type electric linear reciprocator and the planetary gear reducing mechanism multi pack schematic diagram of direct transferring.

Among Fig. 1: 1. transmission nut 2. motor 3. electric motor fans 4. stator cores 5. stator winding 6. rotor cores 7. rotor mouse cages 8. motor cylindrical transmission shafts 9. reciprocating screw rods 10. anti-keyway 11. bearings 12. bearing end covers 13. balance sets 14. of turning round prevent turning round key 15. dust covers 16. dust cover baffle plates 17. thrust overload cut-outs 18. pulling force buffer springs 19. spring stops 20. thrust buffer springs 21. coupling rings 22. buffer heads 23. pulling force overload cut-outs 24. travel switches 25. motor support bases

Among Fig. 2: 1. transmission nut 2. motor 8. motor cartridge type axles 9. reciprocal screw mandrel 10. anti-keyway 12. bearing end covers 13. balance sets 14. of turning round prevent turning round key 25. motor bearings 26. idler gears 27. reducing gear shells 28. inner tooth type gear wheels 29. motor cartridge type shaft head gears 30. gear wheel cartridge type axles 31. intermediate gear shafts 32. End cover for motor

Embodiment:

The execution mode of Fig. 1 is: transmission nut 1 is press-fited in motor cartridge type axle 8, cartridge type axle 8 is press-fited into motor rotor core 6, rotor 6 is put into electric machine stator iron 4, installs bearing 11.

Balance set 13 is installed on the interior circular hole of bearing end cover 12, after bearing end cover 12 is fixed in electric motor end cap, reciprocal screw mandrel 9 spinnings is entered the silk hole of transmission nut 1 and passed motor cartridge type axle 8 and balance set 13.

Make the anti-keyway 10 of turning round of reciprocal screw mandrel 9 relative, will prevent turning round key 14 and pack in the groove and be fixed in balance set 13 with the keyway of balance set.

Back and forth the external diameter of the about 10 centimeters length in end of screw mandrel 9 is less than the external diameter of reciprocal screw mandrel 9 integral body, and the external diameter of dust cover baffle plate 16 is greater than dust cover, and internal diameter approximates the external diameter of reciprocal screw mandrel 9 ends.

Dust cover 15 is sleeved on the outside of reciprocal screw mandrel 9, dust cover baffle plate 16 is loaded onto reciprocal screw mandrel 9 and fixes with screw.Again pulling force buffer spring 18 is loaded onto reciprocal screw mandrel 9 after buffer head 22 installed to reciprocal screw mandrel 9 ends, spring stop 19 is put into the end plane of reciprocal screw mandrel 9, with screw fixing after, put thrust overload spring 20 into buffer head 22, screw coupling ring 21 and wear the pin reinforcing, load onto thrust overload cut-out 17, pulling force overload cut-out 23 and travel switch 24 are adjusted switch motion mechanism.

The execution mode of Fig. 2 is: transmission nut 1 is installed on gear wheel cartridge type axle 30 inwalls, the axis body 31 of idler gear 26 is put into the axis hole of electric motor end cap 32, check idler gear 26 and cooperating of motor tubular shaft head gear 29 suitable after, inner tooth type gear wheel 28 is installed, reducing gear shell 27 is installed the back check that transmission nut 1 rotation is good, in transmission nut 1, down process is with figure one mode with reciprocal screw mandrel 9 spinnings.

Claims

1. type electric linear reciprocator that direct transfers, comprise motor, transmission nut, reciprocal screw mandrel, the anti-key of turning round, balance set, the power transmission shaft that it is characterized in that described motor is a cylinder type, transmission nut is embedded in the inwall of cartridge type axle one end, the interior circular hole of the motor other end bearing end cover relative with transmission nut is installed the ring-like balance set in a garden, the interior circular hole of balance set is carved with the anti-keyway of turning round vertically, back and forth also be carved with the anti-keyway of turning round on the screw mandrel vertically, reciprocal screw mandrel is loaded in the silk hole of transmission nut, and pass cartridge type axle and balance set, make balance set relative with the keyway of reciprocal screw mandrel, anti-turning round in the key mounting groove, when the forward and reverse rotation of rotor, transmission nut is the push-and-pull forward or backward of the reciprocal screw mandrel of turn directly;

Motor erect is installed, reciprocal screw mandrel is stood up and down, during the forward and reverse rotation of rotor, transmission nut is directly carried or is pressed down on the reciprocal screw mandrel of turn.

2. according to the described type electric linear reciprocator that direct transfers of claim 1, when it is characterized in that described transmission nut such as need than the slow-speed of revolution, can be one with described motor and reducing gear multi pack, one end of motor cartridge type axle is directly as the axle that advances of reducing gear, the reducing gear shaft is all cylinder type, and transmission nut is fitted in reductor cartridge type axle inwall, and back and forth the screw mandrel spinning is in it, during the motor rotation, transmission nut can the reciprocal screw mandrel front-rear reciprocation movement of turn.

3. according to the described type electric linear reciprocator that direct transfers of claim 3, it is characterized in that described reducing gear should be the turnover axle axial line that exists together, and does not have the reductor of barrier class between the turnover axle.