The utility model relates to elevating mechanism.
Winding on motor stator is the chief component of stator.Stator winding is coupled together in a certain way and is formed stator circuit by coil groups, produces induced potential with rotor flux relative motion, realizes the conversion of mechanical energy-electric energy.Winding need to be embedded in the groove of stator core, along with scientific and technological development, has occurred that at present a kind of mode of bracing wire is embedded into winding in the groove of stator core.In bracing wire process, because stator core is held device, clamp motionless, puller system is fixed on a support, because the external diameter of stator core is not of uniform size, therefore, on the impossible all same straight lines on clamping device of the centre of location of each stator core, puller system just cannot impose the work of pulling force for the stator of different-diameter.And the position of current clamping device and puller system has no idea it to adjust, therefore, current equipment also has certain limitation.
Summary of the invention
For above-mentioned technical problem, the utility model provides a kind of elevating mechanism, the utility model to carrying out lifting, locate object or workpiece offer help.
The technical solution of the utility model is as follows:
Elevating mechanism, elevating screw mechanism comprises base, screw mandrel, stay pipe, nut, fixture block, base is provided with hole, one end of screw mandrel is engaged in the hole on base rotationally, after stay pipe is enclosed within on screw mandrel, one end of stay pipe is fixed on base, the other end of described screw mandrel stretches out from the other end of stay pipe, the side wall surface of stay pipe is provided with mounting hole, described nut is connected with wire rod thread, after described fixture block is enclosed within on stay pipe, this fixture block and stay pipe are slidably matched, fixture block is provided with screwed hole, after passing the mounting hole on stay pipe after one end of trip bolt is threaded with fixture block, be connected with nut thread.
Adopt technique scheme, when the utility model is used, pass through rotary screw rod, screw mandrel drives nut to move up and down, and because the side wall surface of stay pipe is provided with mounting hole, the trip bolt that mounting hole is attaching nut and fixture block provides movable space, when nut moves up and down, nut drives fixture block to move up and down thereupon, is fixed on object on fixture block or workpiece also along with fixture block moves up and down, and object or the workpiece that so just can locate carrying out lifting are offered help.
Further, also comprise a supporting bracket, this supporting bracket is fixedly connected with fixture block.By supporting bracket, can be convenient to connect the workpiece of the larger required support of volume, then drive its upper and lower displacement by lifting rising stem mechanism.
Further, described screw mandrel reaches on the end of stay pipe outside and connects a handwheel.By rotating handwheel, screw mandrel is rotated, for operator, there is labour-saving feature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the profile along B-B line in Fig. 1;
Fig. 3 is the P portion enlarged drawing in Fig. 2;
10Wei elevating screw mechanism, 11 is base, and 12 is screw mandrel, and 13 is stay pipe, and 14 is nut, and 15 is fixture block, and 16 is mounting hole, and 17 is handwheel, 18 is supporting bracket.
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
With reference to Fig. 1, the utility model elevating mechanism, elevating screw mechanism 10 comprises base 11, screw mandrel 12, stay pipe 13, nut 14, fixture block 15.Base 11 is provided with hole, and one end of screw mandrel 12 is engaged in the hole on base rotationally.After stay pipe 13 is enclosed within on screw mandrel 12, one end of stay pipe 13 is fixed on base 11.The other end of described screw mandrel 12 stretches out from the other end of stay pipe 13.The side wall surface of stay pipe 13 is provided with mounting hole 16.Described nut 14 is threaded with screw mandrel 12, after described fixture block 15 is enclosed within on stay pipe 13, this fixture block 15 is slidably matched with stay pipe 13, and fixture block 15 is provided with screwed hole, with nut 14 is threaded after passing the mounting hole on stay pipe after one end of trip bolt is threaded with fixture block.Described screw mandrel reaches on the end of stay pipe outside and connects a handwheel 17.Also comprise a supporting bracket 18, this supporting bracket 18 is fixedly connected with fixture block 15.