A kind of treadmill and lifting structure thereofTechnical field
The utility model belongs to treadmill field, particularly relates to a kind of treadmill and lifting structure thereof.
Background technology
Treadmill is a kind of conventional body-building apparatus.Traditional treadmill only has running function, and in order to make runner can obtain better experience, current treadmill generally all devises the lifting structure that running platform can be driven to be elevated.By the elevating control to lifting structure, the gradient of running platform can be changed.
As shown in Figure 1, in prior art, the lifting structure of treadmill comprises lifting motor and potentiometer, and lifting motor is by relay connection control device.Operationally, controller is by the folding of control relay, make lifting motor forward or reverse, afterwards, lifting motor drives running platform lifting by transmission mechanism, and meanwhile, the potentiometer connected with lifting motor axle indicates the rotor-position of lifting motor, controller, by obtaining the resistance of potentiometer, gets final product the gradient of Real-time Obtaining running platform.
Owing to being adopt potentiometer to detect the rotor-position of lifting motor, and potentiometer is as contact device, and loss is comparatively large, and service life is shorter, and the gradient of running platform can only be detected by potentiometer, and test item is single.
Utility model content
The purpose of this utility model is the lifting structure providing a kind of treadmill, and the lifting structure being intended to solve existing treadmill adopts potentiometer to detect the rotor-position of lifting motor, service life the short and problem that test item is single.
The utility model is achieved in that a kind of lifting structure of treadmill, and described lifting structure comprises:
Lifting motor, described lifting motor comprises stators and rotators;
The rotor bearing of described lifting motor and bearing (ball) cover;
Transmission mechanism, described transmission mechanism comprises worm gear and worm screw, and described worm screw connects the rotating shaft of described rotor;
Hall element, described Hall element is arranged on the stator of described lifting motor or the encapsulating housing of rotor or outside;
Lifting nut cover, described lifting nut cover is fixedly connected on the upper arm of the lifting pivoted arm of treadmill;
Lifting screw, described lifting screw is arranged in the screwed hole of described lifting nut cover, and by described transmission mechanism driven rotary;
Lifting nut, described lifting nut coordinates with described lifting screw.
Wherein, the middle arm of described lifting pivoted arm is movably connected in by rotating shaft on the motor cabinet of described treadmill, the rear end of described motor cabinet connects the front end of the running platform of described treadmill, and described lifting motor connects the controller of described treadmill by the relay of described treadmill.
Further, described controller can be single-chip microcomputer.
Another object of the present utility model is, additionally provide a kind of treadmill, comprise lifting pivoted arm, motor cabinet, running platform, relay, controller and a lifting structure, the middle arm of described lifting pivoted arm is movably connected on described motor cabinet by rotating shaft, the rear end of described motor cabinet connects the front end of described running platform, and described lifting structure comprises:
Lifting motor, described lifting motor comprises stators and rotators, and described lifting motor connects described controller by described relay;
The rotor bearing of described lifting motor and bearing (ball) cover;
Transmission mechanism, described transmission mechanism comprises worm gear and worm screw, and described worm screw connects the rotating shaft of described rotor;
Hall element, described Hall element is arranged on the stator of described lifting motor or the encapsulating housing of rotor or outside;
Lifting nut cover, described lifting nut cover is fixedly connected on the upper arm of the lifting pivoted arm of treadmill;
Lifting screw, described lifting screw is arranged in the screwed hole of described lifting nut cover, and by described transmission mechanism driven rotary;
Lifting nut, described lifting nut coordinates with described lifting screw.
Further, described controller can be single-chip microcomputer.
The lifting structure of the treadmill that the utility model proposes have employed Hall element to replace existing potentiometer, realizes detecting the position of the rotor shaft of lifting motor.Because Hall element is noncontact class device, thus stronger relative to the service life of potentiometer.Meanwhile, Hall element also can carry out the detection of other project according to user's request, for follow-up function expansion provides hardware foundation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the lifting structure of the treadmill that prior art provides;
Fig. 2 is the profile of the lifting structure of the treadmill that the utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model embodiment proposes a kind of lifting structure of treadmill, and its profile as shown in Figure 2, comprising: lifting motor, and lifting motor comprises stator 9 and rotor 8; The rotor bearing 2 of lifting motor and bearing (ball) cover 1; Transmission mechanism, transmission mechanism comprises worm gear 3 and worm screw 4, and worm screw 4 connects the rotating shaft of rotor 8; Hall element 10, Hall element 10 is arranged on the stator of lifting motor or the encapsulating housing of rotor or outside; Lifting nut cover 7, lifting nut cover 7 is fixedly connected on the upper arm of the lifting pivoted arm of treadmill; Lifting screw 6, lifting screw 6 is arranged in the screwed hole of lifting nut cover 7, and by transmission mechanism driven rotary; Lifting nut 5, lifting nut 5 coordinates with lifting screw 6.
Wherein, the middle arm of the lifting pivoted arm of treadmill is movably connected on the motor cabinet of treadmill by rotating shaft, and the rear end of motor cabinet connects the front end of the running platform of treadmill; Lifting motor connects the controller of treadmill by the relay of treadmill, and this controller can be such as single-chip microcomputer.Like this, this lifting structure operationally, the adhesive of controller control relay controls rotating and reverse of rotor 8 rotating shaft of lifting motor, the rotating shaft of rotor 8 drives transmission mechanism motion, being slowed down by transmission mechanism drives lifting screw 6 to carry out elevating movement, then drives the upper arm of lifting pivoted arm to move by lifting nut cover 7, makes the middle arm straps being elevated pivoted arm move motor cabinet and moves up and down, thus the front end of running platform is elevated, to change the gradient of running platform.
The utility model embodiment also proposed a kind of treadmill, comprises the lifting structure of lifting pivoted arm, motor cabinet, running platform, relay, controller and treadmill as above.Wherein, the middle arm of lifting pivoted arm is movably connected on motor cabinet by rotating shaft, and the rear end of motor cabinet connects the front end of running platform, and lifting motor is by relay connection control device, and this controller can be such as single-chip microcomputer.
The lifting structure of the treadmill that the utility model embodiment proposes have employed Hall element to replace existing potentiometer, realizes detecting the position of the rotor shaft of lifting motor.Because Hall element is noncontact class device, thus stronger relative to the service life of potentiometer.Meanwhile, Hall element also can carry out the detection of other project according to user's request, for follow-up function expansion provides hardware foundation.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.