CN108880041A

CN108880041A - A kind of hub motor and electrodynamic balance vehicle of electrodynamic balance vehicle

Info

Publication number: CN108880041A
Application number: CN201810976939.XA
Authority: CN
Inventors: 苏航
Original assignee: Shenzhen Pilot Zhiyuan Technology Co Ltd
Current assignee: Shenzhen Pilot Zhiyuan Technology Co Ltd
Priority date: 2018-08-26
Filing date: 2018-08-26
Publication date: 2018-11-23

Abstract

The invention discloses a kind of hub motor of electrodynamic balance vehicle and electrodynamic balance vehicles, the electrodynamic balance vehicle includes car body and the wheel for being fixed on car body two sides, the wheel includes hub motor, the hub motor includes shaft, rotor and pin, the shaft includes fixed section, the fixed section is that threaded region is arranged in the outer surface of shaft, the outer surface of the fixed section is provided with the first cotter way, first cotter way is a groove, the rotor includes centre bore, the centre bore is a through-hole, the inner sidewall of the centre bore is provided with screw thread, the inner sidewall of the centre bore is provided with the second cotter way, second cotter way is a groove, shaft and rotor are threadedly engaged installation by the fixed section of shaft and the centre bore of rotor, first cotter way and second cotter way cooperatively form cotter way, the pin and cotter way cooperation are fixed.

Description

A kind of hub motor and electrodynamic balance vehicle of electrodynamic balance vehicle

Technical field

This programme is related to electrodynamic balance vehicle, more specifically, being related to the hub motor of a kind of electrodynamic balance vehicle and electronic flat Weigh vehicle.

Background technique

Electrodynamic balance vehicle, is called body-sensing vehicle, thinking vehicle, and operation principles are mainly built upon a kind of be referred to as " dynamically surely In basic principle calmly ", using the gyroscope and acceleration transducer of vehicle body, to detect the variation of vehicle body attitude, utilize Servo-control system, accurately driving motor is adjusted correspondingly, to keep the balance of system.

Electrodynamic balance vehicle includes car body and the wheel for being fixed on car body two sides, and wheel includes hub motor and shaft, wheel Hub motor and shaft cooperation are fixed.

Existing electrodynamic balance vehicle, during wheel assembling, the cooperation of shaft and hub motor is using interference fit Installation method, which needs both to make hardness cooperation using very big power, and installation speed is slow, leads to hub motor assembling effect Rate is low.

Summary of the invention

Technical problem to be solved by the invention is to provide a kind of hub motor of electrodynamic balance vehicle that packaging efficiency is high and Electrodynamic balance vehicle.

The first purpose of this invention is achieved through the following technical solutions：

A kind of hub motor of electrodynamic balance vehicle, the electrodynamic balance vehicle include car body and the vehicle for being fixed on car body two sides Wheel, the wheel includes hub motor, and the hub motor includes shaft, rotor and pin, and the shaft includes fixed section, described Fixed section is that the outer surface of shaft is arranged threaded region, and the outer surface of the fixed section is provided with the first cotter way, described the One cotter way is a groove, and the rotor includes centre bore, and the centre bore is a through-hole, and the inner sidewall of the centre bore is provided with Screw thread, the inner sidewall of the centre bore are provided with the second cotter way, and second cotter way is a groove, and shaft and rotor pass through shaft Fixed section and the centre bore of rotor be threadedly engaged installation, first cotter way and second cotter way cooperatively form cotter way, The pin and cotter way cooperation are fixed.

Shaft and rotor are threadedly engaged installation, existing electrodynamic balance vehicle by the fixed section of shaft and the centre bore of rotor Shaft and rotor be to be installed by interference fit, which needs both to make hardness cooperation using very big power, to shaft and Rotor can all cause to damage, and installation speed is slow, if can both have been avoided using strength, using installation is threadedly engaged to reduce pair The damage of shaft and rotor, and installation speed can be considerably increased, shaft and rotor after being coupled are inserted by pin and are sold Slot is fixed, and can guarantee the stability after being coupled.Therefore, after this programme both ensure that shaft and rotor engagement installation Stability, and improve hub motor packaging efficiency.

Optionally, the shaft includes the first linkage section, compartmented and the second linkage section, described compartmented one end connection the One linkage section, the other end of the compartmented connect the second linkage section, and the diameter of the compartmented is greater than the straight of the first linkage section Diameter, the diameter of the compartmented are greater than the diameter of the second linkage section, and the height of the outer surface of the compartmented is higher than described first The height of the bottom surface of cotter way, the shaft include cable-through hole section, and the hub motor includes circuit line, and the cable-through hole section is used for By circuit line, the cable-through hole section is connect with the fixed section, and the cable-through hole section includes outlet section, and the outlet section was String holes section is close to one end of fixed section, and the diameter of outlet section is greater than the diameter of fixed section, and the shaft is equipped with escape groove, described Escape groove is a groove, and the escape groove enters cotter way for pin, and the floor height of the escape groove is lower than the bottom of the first cotter way Face height.

The pin of this programme is installed after shaft installation, since the height of the outer surface of compartmented is higher than the first cotter way The height of bottom surface is greater than the diameter of fixed section close to the diameter of the cable-through hole section of fixed section one end, meeting when pin reeve cotter way It is blocked, escape groove is set in shaft, and the floor height of escape groove is lower than the floor height of the first cotter way, so that escape groove is not The first cotter way mouth is blocked, escape groove provides an inlet port for the installation of pin, so that being easier when mounting pin.

Optionally, the outlet section is provided with an outlet hole, and the escape groove is arranged in compartmented.

Since outlet section is provided with an outlet hole, if escape groove is arranged in the outlet section in cable-through hole section, escape groove is set It sets and influences whether line outlet, the structure of outlet section is comparatively more complicated, and escape groove setting can be easier to set in compartmented It sets.

Optionally, the diameter of the compartmented is less than the diameter of fixed section.

The diameter of compartmented is less than the diameter of fixed section, in shaft and rotor installation process, compartmented prior to fixed section into Enter centre bore, since centre bore has internal screw thread, the diameter of this programme compartmented is less than the diameter of fixed section, shaft is facilitated to install.

Optionally, the width of the pin is greater than the width of the cotter way, and the height of the cotter way is not more than the height of pin, pin Fit system between cotter way is interference fit.

It is interference fit between pin and cotter way, the pin after cooperation is not allow for activity phenomenon, to guarantee shaft fix tightly, and Interference fit is exactly to apply strength, is secured firmly to pin in cotter way, as long as this cooperation is exactly original part not itself damage, then Cooperation fastness would not reduce.Therefore, it is interference fit between the pin and cotter way that this programme provides, keeps shaft secured.

Optionally, the escape groove includes cotter way mouth, and the cotter way mouth is opening of the escape groove far from fixed section one end, institute Stating cotter way mouth is rounding corner structure.

Cotter way mouth is designed as rounding corner structure, sells in installation process, the head of pin contacts first with cotter way mouth, for interference For cooperation, the guide design structure just installed can be to avoid the damage of cotter way mouth, and for producing angle, rounding corner structure is set It sets also to facilitate and mold process.

Optionally, the head of the pin is chamfering structure, and the head of the pin is the one end for being introduced into cotter way.

Chamfering structure is designed on the head of pin, sells in installation process, head is introduced into cotter way, since pin is that interference is matched with cotter way It closes, if chamfering is not done to reduce size processing in the head sold when installation, then initial installation difficulty is big, and installation may by force Element can be damaged, the chamfering on head plays guiding function to the installation of pin.Therefore, chamfering knot is designed in the head for the pin that this programme provides Structure facilitates pin to install.

Optionally, the tail portion of the pin is plane, and the tail portion of the pin enters one end of cotter way after being.

The tail portion of pin is plane, is sold in installation process, and due to being interference fit, tail portion will receive biggish percussion Power, it is plane that this, which just needs tail portion stress surface, and forced area is big, and plane does not need specially treated, natural shape after pin production At can meet use, the plane of self-assembling formation also has certain roughness, can hinder force application means generate sliding, more It is convenient that installing force is applied to pin.

Optionally, the wheel includes outer wheel bearing, and the insertion outer wheel bearing section of the shaft connect solid with outer wheel bearing Fixed, the not convex outer end face in compartmented of the tail plane of the pin, the tail portion of the pin enters one end of cotter way after being, and described point The outer end face of compartment is one side of the compartmented close to outer wheel bearing.

Pin installation after the not convex outer end face in compartmented of tail plane, hub motor installation after, the outer end face of compartmented with Outer wheel bearing contact, if pin is too long, the tail plane after leading to installation is convex in compartmented outer end face, and pin replaces compartmented outer end face It is contacted with outer wheel bearing, then will affect the normal rotation of shaft, also will affect the installation of hub motor.Therefore, this programme mentions Tail plane is not convex in compartmented outer end face after supply and marketing installation, does not influence the rotation of shaft.

Optionally, the pin is cuboid, and the cotter way is also rectangular parallelepiped structure.

Pin is cuboid, and pin is interference fit with cotter way, and pin is knocked in cotter way by strength, cuboid Regular shape is sold, structure is uniform, and compares other shapes, and cuboid is not need excessive processing to go to obtain, and it is low in cost, and And it is able to satisfy the fixed function of this programme pin.

Optionally, the pin is cylindrical body, and the cotter way is also cylindrical body.

Pin is cylindrical body, and the pin all directions of the cylindrical body after installation are by identical power, and the conjunction of cylindrical surface institute stress Power is zero, and the service life sold in this way is very long, is hardly damaged.Therefore, the pin that this programme provides is designed as cylindrical body, mechanical property It is good.

Optionally, the quantity of the pin is one, and the side wall of the centre bore is provided with a cotter way, the pin and cotter way Cooperation is fixed.

The quantity for fixing the pin of a shaft and a rotor is one, and shaft and rotor after being threadedly engaged by having reached To more firm Cheng Du, pin is that is, only to need pin that can prevent shaft for ensuring that shaft and rotor will not generate loosening Relative rotor is rotated to direction is loosened, then a pin is just able to satisfy fixed requirement.Therefore, this programme offer fixes one The quantity of the pin of shaft and a rotor is one, at low cost and meet fixed function.

Optionally, the quantity of the pin has multiple, and the side wall of the centre bore is provided with corresponding cotter way, the pin and pin Slot cooperation is fixed.

The quantity of the pin have it is multiple, shaft and rotor installation after, the installation is fixed by pin, if only with one pin It fixes, is initially can satisfy fixed requirement, but under the long-term load-bearing service condition of wheel, the deformation of material is inevitable , if pin nearby or the material of itself generates deformation, just influences whether the relatively fixed of shaft and rotor, and if using more The common fixed rotating shaft of a pin and rotor, then correlating each other between multiple pins, for relatively fixed between shaft and rotor To reinforcement, keep fixed effect more preferable.

Optionally, the angle between after multiple pins are installed is equal.

Angle is equal between pin after installation, and first from structural point, pin is evenly distributed, and structure is beautiful, then from fixation Effect analysis then the stress of each pin is just unequal, will cause difference for a long time, influence entirety if the angle between pin differs Fixed effect.Therefore, angle is equal between the pin after this programme offer installation, structure beauty and good fixing effect.

Optionally, the pin includes inserting paragraph and the initial segment, and the inserting paragraph is connect with the initial segment, the inserting paragraph it is straight Diameter is greater than the initial segment, and the inserting paragraph of the pin is provided with screw thread, is respectively arranged with screw thread in first cotter way and the second cotter way, Pin is fitted through with cotter way to be screwed.

Pin is fixed using screw thread installation, and the pin and cotter way of existing fixed rotating shaft and rotor are realized using interference fit, peace It is larger to fill difficulty, it is a kind of installation method of lesion element that when installation can be generated by percussion power portion faces, which strikes trace, if pin passes through Engagement thread is rotated to be cooperated into cotter way, has not only been able to satisfy fixed requirement, but also substantially reduce installation difficulty.Therefore, this programme provides Pin using screw thread installation fix, facilitate installation.

Optionally, the initial segment includes outer end face and inner face, and the inner face is the one end connecting with inserting paragraph, institute It states outer end face to be oppositely arranged with the inner face, fluted, the groove and extracting tool cooperation reality is set on the outer end face The dismounting of cash sale.

Pin the initial segment design with extracting tool cooperation groove because pin be by screw thread rotation realize install, then Pin should just have and rotate the structure for implementing the effect of power, it is contemplated that the installation site of pin is narrow, only tired by the hand installation of people Difficulty realizes rotation dismounting function then just should consider that existing general utility tool is typically all to act in groove structure by tool Can, such as screw and screwdriver.Therefore, this programme provides the groove of the stub end design and extracting tool cooperation of pin, facilitates pin It is acted on extracting tool and realizes dismounting.

Optionally, the non-bulging outer end face in centre bore of the outer end face of the initial segment, the outer end face of the centre bore are Close to the one side of compartmented.

After pin installation, the pin after the non-bulging outer end face in centre bore of the outer end face of the initial segment, that is, installation is in structure On be it is non-salient, it is strong, beautiful at first appear to structural integrity in this way, then the initial segment be similarly positioned in shaft in rotor it Between, the case where the cooperation of fixed rotating shaft and rotor can be played, protrude from centre bore outer end face compared to the initial segment outer end face in this way, The fixed effect of the structure is more preferable, and since the initial segment is relatively large in diameter, and can also play the role of reinforcement to the fixed function of pin. Therefore, this programme provides the non-bulging outer end face in centre bore of outer end face of the initial segment after pin installation, keeps structure beautiful and fixed Effect is more preferable.

Optionally, the groove is rectangular strip.

Groove design is rectangular strip, and existing general screw dismounting tool includes flat bit screwdriver, this kind of screwdriver can To realize the dismounting of pin.Therefore, it is rectangular strip that this programme, which provides groove design, facilitates the dismounting of flat bit screwdriver.

Optionally, the groove is cross flower-shape.

Groove design is cross flower-shape, and existing general screw dismounting tool includes cross flower-shape screwdriver and flat head screw Knife, cross flower-shape screwdriver life in it is very common and complete in specifications, compare flat bit screwdriver, cross flower-shape screwdriver head There are four fin forces, and flat head screwdriver head only has a rib, two kinds of screwdrivers, which act in respective groove, normally to be made Used time, flat bit screwdriver is easier to damage groove, and once damages one jiao with this groove of flat bit screwdriver cooperation, Just can not normal use again, in contrast, four ribs forces of cross flower-shape screwdriver, the dispersion of groove uniform force can be indirect Protect groove, the long service life of such groove.Therefore, it is cross flower-shape that this programme, which provides groove design, is easy to use cross Flower-shape screwdriver dismounting pin.

Optionally, the groove is regular hexagon.

Groove design is regular hexagon, that is, refers to interior countersunk head hex screw, the die nut in existing screw dismantling device It is that use scope is wide, at low cost, complete in specifications, compared with traditional screwdriver, die nut can flexibly change use Direction fastens countersunk head hex screw, and dismounting, and hexagonal can also be realized in very narrow position by using even if countersunk head hex screw Force is divided into six angles by spanner, greatly protects countersunk head hex screw.Therefore, this programme provides groove design and is positive six sides Shape is easy to use die nut dismounting pin.

Optionally, the groove includes notch, and the notch is set as chamfering, and the chamfering is inclined in slot.

Design chamfering on the notch of groove, when general screwdriver dismounting screw, model be all it is corresponding, same model After cooperation, screwdriver head and screw grooves are all fitted closely, and facilitate force, similarly, if the groove notch of this programme is not The chamfered in structure is done, then need to take time when the dismantling device insertion of same specification, and notch opens up tendency slot. more Interior chamfering can play the role of guiding extracting tool insertion, shorten the set-up time of wheel and a kind of save cost It embodies.Therefore, this programme designs chamfering on the notch of groove, and easy disassembly tool is inserted into groove.

Optionally, the hub motor includes circuit line, and the shaft includes cable-through hole section, the cable-through hole section with it is described Fixed section connection, the cable-through hole section are used for through circuit line, and the cable-through hole section is composable structure.

A kind of circuit line of the hub motor of existing electrodynamic balance vehicle is to pass through from cable-through hole section, and cable-through hole section is one Structure, such threading hole makes route installation cumbersome, so that installation is quite time-consuming.Cable-through hole section is composable knot Structure so first places route, then assembles cable-through hole section, has not only facilitated but also time saving.Therefore, this programme provides shaft Cable-through hole section be designed as can be assembled, facilitate the route of hub motor to install.

Optionally, the cable-through hole section includes main body and accessory body, and sliding slot is provided in the main body, is arranged on the accessory body Promising sliding rail, the sliding rail and sliding slot, which are slidably matched, realizes the assembling of cable-through hole section.

Cable-through hole section by slidably assemble, slidably assemble do not need by additional fixed structure it is achieved that and Good fixing effect, when installation, only need to slide sliding rail along sliding slot, the assembling of very convenient cable-through hole section.

Optionally, the main body is internally provided with the first groove, and first groove is a groove, the main body includes Cable-through hole, the cable-through hole are that a through-hole is connected to the first groove, and the one end of main body close to fixed section is arranged in the cable-through hole, The accessory body is internally provided with the second groove, and second groove is a groove, first groove, the second groove and mistake line Hole cooperatively forms threading hole for placing route, and the main body includes fixed pan, middle sinking based on the fixed pan One step surface, the face that main body is contacted with accessory body cooperation are known as interface, and the interface is parallel with the fixed pan.

Interface is parallel with fixed pan, after wheel is fixed, the direction of the main power received in shaft and fixed pan Normal direction is identical, if interface is parallel with fixed pan, then accessory body and main body also will receive and the interface normal direction same direction Power, be at this moment that the power that sliding rail and sliding slot are subject to is smaller, damage not will cause to sliding rail and sliding slot, if interface and fixed pan It is not parallel, then the power significant portion that main body and accessory body are subject to can be born by sliding rail and sliding slot, so that the stress of main body and accessory body Reduced performance is easy to produce deformation, from the use for influencing electrodynamic balance vehicle.Therefore, point of this programme provides main body and accessory body Interface is parallel with the fixed pan in main body, and the shaft stress performance after assembling is more preferable.

Optionally, the depth of the first groove of the main body is equal to the depth of the second groove of the accessory body.

The depth of first groove of main body is equal to the depth of the second groove of accessory body, and main body and accessory body include wearing for half String holes, at this moment for relative line setting angle, the opening of threading hole is 180 °, is the largest opening at this time, and there are also one Half threading hole has certain fixed function to route, can facilitate the installation process of route for putting before route installation.

Optionally, the depth of the first groove of the main body is greater than the depth of the second groove of the accessory body.

The depth of first groove is greater than the depth of the second groove, then that is main body includes most of threading hole, In route installation process, it will be first routed through threading hole, it is then that route is semifixed in the threading hole of main body, finally pacify Accessory body is filled, route is fixed, during semifixed, because route is relatively soft, fixation is not very convenient, and including threading hole The main body of most can surround railway superstructures mostly, make route " coming in be easy away difficulty ", accessory body after this also facilitates Installation.Therefore, the interface of this programme provider and accessory body is biased to accessory body in position, consolidating when route being facilitated to install It is fixed.

Optionally, the cable-through hole section includes fixing piece, and the tail end of the main body is provided with the first fixed bit, the main body Tail end be one end far from rotor, the tail end of the accessory body is provided with the second fixed bit, and the tail end of the accessory body is far from turning Complete fixed bit is formed after one end of son, first fixed bit and second fixed bit cooperation, the fixing piece and complete Fixed bit installation cooperation.

Main body and accessory body after assembling are fixed by fixing piece, if the main body and accessory body after assembling are fixed without fixing piece, meeting There are the separated hidden danger of main body and accessory body, can guarantee that the main body after installation and accessory body are not separated by fixing piece, so that Main body and accessory body after assembling is stronger.

Optionally, the outer surface of first fixed bit is provided with screw thread, and the outer surface of second fixed bit is provided with Screw thread, first fixed bit and second fixed bit cooperatively form a bolt, and the fixing piece is nut, in the nut Side wall is provided with screw thread, the bolts and nuts installation cooperation.

Fixing piece selects nut, and the bolt formed after nut installation to the first fixed bit and the second fixed bit has one to pack tightly Power, which plays 360 ° of position-limiting actions to main body and accessory body, and the screw thread and nut of the first fixed bit and the second fixed bit Threaded function have the position-limiting action for being parallel to shaft centerline direction to main body and accessory body, such nut can be very good solid Main body and accessory body after Dingan County's dress, meanwhile, nut installation is simply, conveniently.Therefore, the fixing piece that this programme provides selects nut, It is good fixing effect, easy for installation.

Optionally, the wheel includes interior wheel bearing, and the nut is circular cylinder, and the nut outer diameter was not more than line The interspersed cooperation of hole section outer diameter, the cable-through hole section and the interior wheel bearing.

Nut outer diameter is not more than cable-through hole section outer diameter, if nut outer diameter is greater than cable-through hole section, it is interspersed to will lead to cable-through hole section Interior wheel bearing is difficult, and nut outer diameter is not more than cable-through hole section outer diameter, can be convenient shaft and the interspersed cooperation of interior wheel bearing.

Optionally, the nut includes inner circle and outer circle, and the surface of the outer circle is provided with a plane, in the nut The distance of axis to plane is greater than nut inner circle radius and is less than nut exradius.

The design plane in the outer circle of nut, nut is for the main body and accessory body after being fixedly mounted, then needing after installation Nut itself securely, when so installing needs to apply nut certain twisting resistance, if forcing in cylindrical surface, then nut is not It can tighten, because being inconvenient to exert oneself, after design plane on the external cylindrical surface in nut, finger or force application means can be acted on It in plane, conveniently exerts oneself, such nut can also be fixed tighter.Therefore, this programme provides the design plane in the outer circle of nut, Force when nut being facilitated to install.

Optionally, the surface of the outer circle of the nut is rough surface, when the surface of the outer circle of the nut is that nut is installed Force surface.

The outer round surface of nut is designed as rough surface, because of force surface when periphery is nut installation, then its surface It is coarse can be with increasing friction force, stressed effect is good, also just facilitates the installation of nut.

Optionally, the nut includes outer end face, and the outer end face of the nut is after nut cooperates with bolt towards shaft The one side of end, the cable-through hole section includes outer end face, and the outer end face of the cable-through hole section is to turn the tip of the axis, outside the nut End face is overlapped with cable-through hole section outer end face.

Nut outer end face after installation is overlapped with cable-through hole section outer end face, and the nut overall structure after installing in this way is all to master Body and accessory body play booster action, more preferable to the fixed effect of main body and accessory body after installation, and structure is neatly beautiful in appearance It sees.Therefore, the nut outer end face that this programme provides after installation is overlapped with cable-through hole section outer end face, beautiful and good fixing effect.

Optionally, the inner surface of the first fixed bit of the main body is provided with screw thread, the second fixed bit of the accessory body Inner surface is provided with screw thread, and the fixing piece is screw, and the main body and accessory body install later half internal screw thread and form internal thread hole, institute State internal thread hole and screw installation cooperation.

Fixing piece selects screw, can limit the main body after installation using screw and accessory body generates relative movement, helps solid Main body and accessory body after Dingan County's dress, and the installation of screw is simply, conveniently.

Optionally, the screw includes head and inserting paragraph, and the complete fixed bit includes insertion groove and mating groove, described The diameter of mating groove be greater than insertion groove diameter, the screw inserting paragraph insertion insertion groove in, the head of the screw with match Slot cooperation is closed, the head end of the screw is overlapped with cable-through hole section outer end face, and the head end of the screw is far from insertion One end face of section, the outer end face of the cable-through hole section are to turn the tip of the axis.

Screw head end face after installation is overlapped with cable-through hole section outer end face, after screw installation, so that head is stealthy in mistake In string holes section, i.e., head end is overlapped with cable-through hole section outer end face, and such appearance seems that globality is strong, Micron Technology, and screw Completely into can be very good in cable-through hole section be fixedly mounted after main body and accessory body.Therefore, this programme provides the spiral shell after installation Ailhead end surface is overlapped with cable-through hole section outer end face, beautiful and good fixing effect.

Optionally, the rotor includes insulation spacer, and the insulation spacer plays insulating effect, and the insulation spacer includes perpendicular Straight insulation spacer, the vertical insulation spacer is vertical with the axial direction of the shaft, the vertical insulation spacer in one at Type structure.

Vertical insulation spacer on rotor is designed as an entirety, on a kind of existing rotor of electrodynamic balance wheel hub motor Vertical insulation spacer be all it is relatively independent, when installation, needs to be punctured into rotor in turn, and needs after installing each perpendicular Straight insulation spacer is all aligned, and such installation effectiveness is low, if vertical insulation spacer is designed as an entirety, then only needing when installation It is inserted into rotor, meeting nature alignment improves the efficiency of installation.Therefore, this programme is provided the vertical insulation spacer on rotor It is designed as an entirety, vertical insulation spacer is facilitated to install.

Optionally, the insulation spacer includes vertical insulation spacer and level insulation gasket, the level insulation gasket packet It includes inside level insulation gasket and outside level insulation gasket, the vertical insulation spacer side is matched with outside level insulation gasket It closes, the other side of the vertical insulation spacer and the outside level insulation gasket cooperate, the vertical insulation spacer and outside Level insulation gasket is set as an entirety.

Vertical insulation spacer and level insulation gasket design are an entirety, and whole structure sealing effect is more preferable, coil Winding is more convenient, preferably completely cuts off coil and rotor, while vertical insulation spacer is installed together with the level insulation gasket in outside, Reduce the process that a step is installed separately, promotes installation effectiveness.Therefore, this programme provides vertical insulation spacer and outside is horizontal absolutely Edge gasket design is an entirety, and insulation function is more preferable and installation effectiveness is high.

Optionally, the rotor includes rotor core, and the rotor core and shaft cooperate, the rotor core include coil slot and The area of gear, interval of the coil slot between each gear, the outer surface of the vertical insulation spacer is equal to coil slot The outer surface of the area of inner surface, the vertical insulation spacer is the face contacted with coil slot, and the inner surface of the coil slot is The one side contacted with vertical insulation spacer.

The area of the outer surface of vertical insulation spacer is equal to the area of coil slot inner surface, installs vertical insulation spacer in this way When, the interaction force between the outer surface and coil rooved face of vertical insulation spacer just, generates sliding after will not both letting go, It again will not tension and difficult insertion.Therefore, this programme provides the area of the outer surface of vertical insulation spacer and the coil slot of rotor core The area of inner surface is identical, fixation when vertical insulation spacer being facilitated just to install.

Optionally, the rotor core includes electronic component and tooth, and the electronic component is fixed on tooth, the level insulation The outer profile diameter of gasket is equal to the outer profile diameter of coil slot.

The outer profile diameter of level insulation gasket is equal to the outer profile diameter of coil slot, and such tooth is opposite extra space Residue goes out, and electronic component just facilitates fixation, and compares a kind of existing hub motor of electrodynamic balance vehicle, and this programme can also save Material saving, functionally it is also ensured that coil will not touch tooth when winding.Therefore, this programme provides the outer of level insulation gasket Outline diameter is designed as the outer profile diameter equal to coil slot, saves material and the installation for the electronic component on rotor provides foot Enough spaces.

Optionally, the level insulation gasket and vertical insulation spacer seamless combination.

Level insulation gasket and vertical insulation spacer seamless combination, if having between level insulation gasket and vertical insulation spacer Gap can make hub motor disabler in this way, only make level insulation then coil just has the case where contacting with rotor core Gasket and vertical insulation spacer seamless combination just can guarantee isolation coil and rotor core, make hub motor normal operation.Therefore, This programme provides level insulation gasket and vertical insulation spacer seamless combination, prevents coil from contacting with rotor core.

Optionally, integrated level insulation gasket and vertical insulation spacer include junction, and the junction is vertical exhausted The part that embolium is contacted with outside level insulation piece, the turning of the junction are rounded corner.

It is horizontal to be designed as rounding corner structure with vertical integrated insulation spacer junction external corners, locate if junction is not done It manages, is straight turning in structure, when coil winding, straight turning has one to prop up coil, and coil is caused to generate in straight corner Gap makes the winding low efficiency of coil, not only wastes coil, but also causes coil functionally effect poor, if junction is designed as rounding Corner structure passes through then coil can smoothly transit, and can avoid a series of problems appeared above.Therefore, this programme provides horizontal It is designed as rounding corner structure with vertical integrated insulation spacer junction external corners, coil winding effect is more preferable.

Optionally, the vertical insulation spacer includes first end face and second end face, and the level insulation gasket includes interior Side level insulation gasket and outside level insulation gasket, the outer end face weight of the first end face and the outside level insulation gasket It closes, the outer end face of the outside level insulation gasket is close to one end of compartmented, and the second end face and the inside are horizontal The outer end face of insulation spacer is overlapped, and the outer end face of the inside level insulation gasket is do not contact with vertical insulation spacer one Face.

The first end face and second end face of vertical insulation spacer after installation are outer with the level insulation gasket of two sides respectively End face be overlapped, that is, vertical insulation spacer width be equal to rotor core width add two sides level insulation gasket thickness, If the width that the width of vertical insulation spacer is less than rotor core adds the thickness of two sides level insulation gasket, it would be possible that will appear When installing level insulation gasket, locating effect is bad, and not enough inlays completely in structure between horizontal and vertical insulation spacer, sees Get up irregular beauty；If the width that the width of vertical insulation spacer is greater than rotor core adds the thickness of two sides level insulation gasket Degree, causes waste of material.Therefore, this programme provides the level insulation with two sides respectively of the vertical insulation spacer both ends of the surface after installation The outer end face of gasket is overlapped, and facilitates the fixation of level insulation gasket and structure neat appearance.

Optionally, the inside level insulation gasket includes bulge-structure and through-hole, and the through-hole setting is in inside level The fringe region of through-hole is arranged in the center of insulation spacer, the bulge-structure, and it is horizontal absolutely that the bulge-structure protrudes from inside The surface of edge gasket, the rotor core include sunk structure, and the sunk structure is recessed in the surface of rotor core, the protrusion knot Structure and sunk structure, which cooperate, realizes that the installation of level insulation gasket positions.

Mutually matched location structure is designed on inside level insulation gasket and rotor core, because in level insulation gasket It when installation, needs to be fixed for a suitable position, facilitates subsequent other component installations, and the cost of rotor core material Higher than the material cost of level insulation gasket, so designing bulge-structure on the level insulation gasket of inside, set on rotor core Groove structure is counted, to save cost.Therefore, this programme offer designs mutually matched fixed on level insulation gasket and rotor core Bit architecture facilitates the installation of level insulation gasket to position.

Optionally, the deep equality of the height of the bulge-structure protrusion and sunk structure recess.

The deep equality of height and the sunk structure recess of bulge-structure protrusion, such bulge-structure and sunk structure cooperate It is very close to each other after installation, then level insulation gasket does not just have activity space yet, keep the positioning of level insulation gasket firm.

Optionally, the bulge-structure be cuboid, the sunk structure be cuboid, the cuboid of the protrusion with it is recessed The installation positioning of level insulation gasket is realized in sunken cuboid installation cooperation.

Bulge-structure and sunk structure are both designed as cuboid, and rectangular shape is relatively regular, in the cuboid of protrusion and recessed After sunken cuboid cooperation, rotation to level insulation gasket and the binding effect moved horizontally are good, but also level insulation pad The fixed effect of piece is more preferable.

Optionally, the cuboid of the protrusion and the cuboid quantity of recess are one.

The cuboid of protrusion and the cuboid quantity of recess design individually, because the protrusion of cuboid is matched with sunk structure Good fixing effect after conjunction, and consider the power that can't be rotated in the use of level insulation gasket or level is slided, so convex The cuboid quantity of the cuboid and recess that rise is both designed as one, and then mutually installation cooperation can satisfy level insulation gasket Fixed effect, and cost is relatively low.

It is another object of the present invention to provide a kind of electrodynamic balance vehicle, the electrodynamic balance vehicle includes car body and consolidates Due to the wheel of car body two sides, the wheel includes hub motor, and the hub motor includes shaft, rotor and pin, and described turn Axis includes fixed section, and the fixed section is that threaded region, the outer surface setting of the fixed section is arranged in the outer surface of shaft Have the first cotter way, first cotter way is a groove, and the rotor includes centre bore, and the centre bore is a through-hole, it is described in The inner sidewall in heart hole is provided with screw thread, and the inner sidewall of the centre bore is provided with the second cotter way, and second cotter way is a groove, Shaft and rotor are threadedly engaged installation, first cotter way and described second by the fixed section of shaft and the centre bore of rotor Cotter way cooperatively forms cotter way, and the pin and cotter way cooperation are fixed.

Detailed description of the invention

Fig. 1 is balance car of embodiment of the present invention overall structure diagram.

Fig. 2 is the structural schematic diagram of hub motor of the embodiment of the present invention.

Fig. 3 is the structural schematic diagram of shaft of the embodiment of the present invention.

Fig. 4 is the structural schematic diagram of rotor of the embodiment of the present invention.

Fig. 5 is the structural schematic diagram of the multiple pins of the embodiment of the present invention.

Fig. 6 is the partial enlarged view of A in Fig. 5 of the embodiment of the present invention.

Fig. 7 is the structural schematic diagram that the embodiment of the present invention is slidably installed.

Fig. 8 is the structural schematic diagram of insulation spacer of the embodiment of the present invention.

Fig. 9 is the structural schematic diagram of rotor core of the embodiment of the present invention.

Figure 10 is the fixed structural schematic diagram of further embodiment of this invention nut.

Figure 11 is the fixed structural schematic diagram of further embodiment of this invention screw.

Figure 12 is the structural schematic diagram of wheel composition in the embodiment of the present invention.

Wherein：1, car body；2, wheel；3, it sells；4, rotor；5, shaft；6, fixed section；7, centre bore；8, the first cotter way；9, Second cotter way；10, compartmented；11, the first linkage section；12, the second linkage section；13, cable-through hole section；14, outlet section；15, it avoids Slot；16, it is inserted into outer wheel bearing section；17, cotter way；18, circuit line；19, main body；20, accessory body；21, fixed pan；22, vertical exhausted Edge gasket；23, outside level insulation gasket；24, inside level insulation gasket；25, rotor core；26, coil slot；27, protrusion knot Structure；28, sunk structure；29, electronic component；30, tooth；31, nut；32, bolt；33, screw；34, outer wheel bearing；35, lubrication groove Bearing.

Specific embodiment

It should be noted that term used herein above is not intended to limit example just for the sake of description specific embodiment Property embodiment.

For example, term " center ", " transverse direction ", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific Orientation construction and operation, therefore be not considered as limiting the invention；Unless otherwise restricted clearly, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition Concrete meaning in the present invention；Term " first ", " second " are used for description purposes only, and are not understood to indicate or imply phase To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with Explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, singular "one", " one " also attempt to include plural number；The meaning of " plurality " is two or more.Term " packet used herein above Include " and/or "comprising" provide the presence of stated feature, integer, step, operation, unit and/or component, and be not excluded for depositing Or one or more other features of addition, integer, step, operation, unit, component and/or combination thereof.

The invention will be further described with preferred embodiment with reference to the accompanying drawing.

A kind of hub motor of electrodynamic balance vehicle of the embodiment of the present invention is described below with reference to Fig. 1 to Figure 12.

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, present embodiment discloses a kind of hub motor of electrodynamic balance vehicle, the electricity Dynamic balancing vehicle includes car body 1 and the wheel 2 for being fixed on 1 two sides of car body, and the wheel 2 includes hub motor, the wheel hub electricity Machine includes shaft 5, rotor 4 and pin 3, and the shaft 5 includes fixed section 6, and the fixed section 6 is that the outer surface of shaft 5 is provided with The region of screw thread, the outer surface of the fixed section 6 are provided with the first cotter way 8, and first cotter way 8 is a groove, the rotor 4 Including centre bore 7, the centre bore 7 is a through-hole, and the inner sidewall of the centre bore 7 is provided with screw thread, the centre bore 7 it is interior Side wall is provided with the second cotter way 9, and second cotter way 9 is a groove, shaft 5 and rotor 4 by the fixed section 6 of shaft 5 and turns The centre bore 7 of son 4 is threadedly engaged installation, and first cotter way 8 and second cotter way 9 cooperatively form cotter way 17, the pin Cooperate with cotter way 17 and fixes.

Shaft 5 and rotor 4 are existing electronic by the installation that is threadedly engaged of the fixed section 6 of shaft 5 and the centre bore 7 of rotor 4 The shaft 5 of balance car with rotor 4 is installed by interference fit, which needs to make the two hardness cooperation using very big power, Shaft 5 and rotor 4 can all be caused to damage, and installation speed is slow, if can both avoid using strong using installation is threadedly engaged Power to reduce the damage to shaft 5 and rotor 4, and can considerably increase installation speed, the shaft 5 after being coupled and turn Son 4 is inserted into cotter way 17 by pin 3 to fix, can guarantee the stability after being coupled.Therefore, this programme, which both ensure that, turns Axis 5 and rotor 4 be coupled after stability, and improve hub motor packaging efficiency.

As another embodiment of the present invention, with reference to Fig. 3, unlike the embodiments above is, the shaft 5 includes the One linkage section 11, compartmented 10 and the second linkage section 12, described 10 one end of compartmented connect the first linkage section 11, the compartmented 10 other end connects the second linkage section 12, and the diameter of the compartmented 10 is greater than the diameter of the first linkage section 11, the separation The diameter of section 10 is greater than the diameter of the second linkage section 12, and the diameter of the compartmented 10 is less than the diameter of fixed section 6, the separation The height of the outer surface of section 10 is higher than the height of the bottom surface of first groove, and the shaft 5 includes cable-through hole section 13, the wheel Hub motor includes circuit line 18, and the cable-through hole section 13 is used for through circuit line 18, the cable-through hole section 13 and the fixed section 6 Connection, the cable-through hole section 13 include outlet section 14, and the outlet section 14 is cable-through hole section 13 close to one end of fixed section 6, out The diameter of mouth section 14 is greater than the diameter of fixed section 6, and the outlet section 14 is provided with an outlet hole, and the shaft 5 is equipped with and keeps away Allow slot 15, the escape groove 15 is a groove, the setting of escape groove 15 in compartmented 10, the escape groove 15 for pin 3 into Enter cotter way 17, the floor height of the escape groove 15 is lower than the floor height of the first cotter way 8.The escape groove 15 includes cotter way Mouthful, the cotter way mouth is opening of the escape groove 15 far from 6 one end of fixed section, and the cotter way mouth is rounding corner structure.

The pin of this programme is installed after the installation of shaft 5, since the height of the outer surface of compartmented 10 is higher than the first pin The height of the bottom surface of slot 8 is greater than the diameter of fixed section 6 close to the diameter of the cable-through hole section 13 of 6 one end of fixed section, sells when pin injects It can be blocked when slot, escape groove 15 is set in shaft 5, the floor height of escape groove 15 is high lower than the bottom surface of the first cotter way 8 Degree, so that escape groove 15 does not block 8 mouthfuls of the first cotter way, escape groove 15 provides an inlet port for the installation of pin, so that mounting pin When be easier.

In addition, since outlet section 14 is provided with an outlet hole, if escape groove is arranged in the outlet section 14 in cable-through hole section 13 15, the setting of escape groove 15 influences whether line outlet, and the structure of outlet section 14 is comparatively more complicated, and the setting of escape groove 15 exists Compartmented 10 can be easier to be arranged.

In addition, cotter way mouth is designed as rounding corner structure, sell in installation process, the head of pin contacts first with cotter way mouth, right For interference fit, the guide design structure just installed can be to avoid the damage of cotter way mouth, for producing angle, rounded corner knot The setting of structure, which also facilitates, mold process.

In addition, the diameter of compartmented 10 is less than the diameter of fixed section 6, and in shaft 5 and 4 installation process of rotor, compartmented 10 Enter centre bore 7 prior to fixed section 6, since centre bore 7 has internal screw thread, the diameter of this programme compartmented 10 is less than fixed section 6 Diameter facilitates shaft 5 to install.

Optionally, the width of the pin is greater than the width of the cotter way, and the height of the cotter way is not more than the height of pin, pin Fit system between cotter way is interference fit.The head of the pin is chamfering structure, and the head of the pin is to be introduced into pin One end of slot.The tail portion of the pin is plane, and the tail portion of the pin enters one end of cotter way after being.The pin is cuboid, institute Stating cotter way is also rectangular parallelepiped structure.The wheel 2 includes outer wheel bearing 34,34 section 16 of the insertion outer wheel bearing of the shaft 5 with Outer wheel bearing 34 is connected and fixed, the not convex outer end face in compartmented 10 of the tail plane of the pin, and the tail portion of the pin is laggard Enter one end of cotter way, the outer end face of the compartmented 10 is one side of the compartmented 10 close to outer wheel bearing 34.

In the present solution, being interference fit between pin and cotter way, the pin after cooperation is not allow for activity phenomenon, to guarantee shaft 5 fix tightlies, and be interference fitted be exactly apply strength, be secured firmly to pin in cotter way, as long as it is this cooperation be exactly original part not certainly Body damage, then cooperation fastness would not reduce.Therefore, it is interference fit between the pin and cotter way that this programme provides, makes to turn Axis 5 is secured.

In addition, the tail portion of pin is plane, sell in installation process, due to being interference fit, tail portion will receive biggish Percussion power, it is plane that this, which just needs tail portion stress surface, and forced area is big, and plane does not need specially treated, after pin production certainly What is so formed can meet use, and the plane of self-assembling formation also has certain roughness, and force application means can be hindered to generate cunning It moves, is more convenient to apply installing force to pin.The not convex outer end face in compartmented 10 of tail plane after pin installation, hub motor installation Afterwards, the outer end face of compartmented 10 is contacted with outer wheel bearing 34, if pin is too long, the tail plane after leading to installation is convex in compartmented 10 Outer end face, pin replaces 10 outer end face of compartmented to contact with outer wheel bearing 34, then will affect the normal rotation of shaft 5, it also can shadow Ring the installation of hub motor.Therefore, tail plane is not convex in 10 outer end face of compartmented after this programme provides pin installation, does not influence to turn The rotation of axis 5.

In addition, pin is cuboid, pin is interference fit with cotter way, and pin is knocked in cotter way by strength, long The pin regular shape of cube, structure is uniform, and compares other shapes, and cuboid is not need excessive processing to go to obtain, cost It is cheap, and it is able to satisfy the fixed function of this programme pin.

Optionally, the pin may be cylindrical body, and the cotter way is also cylindrical body.Pin is cylindrical body, the circle after installation The pin all directions of cylinder are by identical power, and the resultant force of cylindrical surface institute stress is zero, and the service life sold in this way is very long, no It is easy to damage.Therefore, the pin that this programme provides is designed as cylindrical body, and mechanical property is good.

The quantity of the pin is one, and the side wall of the centre bore 7 is provided with a cotter way, and the pin and cotter way cooperation are solid It is fixed.

In the present solution, the quantity for fixing the pin of a shaft 5 and a rotor is one, shaft 5 and rotor pass through screw thread Have reached the firm Cheng Du of comparison after cooperation, pin that is, is only needed for ensuring that shaft 5 and rotor will not generate loosening Pin can prevent 5 relative rotor of shaft from rotating to direction is loosened, then a pin is just able to satisfy fixed requirement.Therefore, our It is one that case, which provides and fixes the quantity of the pin of a shaft 5 and a rotor, at low cost and meet fixed function.

Optionally, with reference to Fig. 5 and Fig. 6, the quantity of the pin has multiple, and the side wall of the centre bore 7 is provided with corresponding Cotter way, the pin and cotter way cooperation are fixed.The multiple pin is all the same, after multiple pins installations between angle it is equal.

The quantity of the pin have it is multiple, shaft 5 and rotor installation after, the installation is fixed by pin, if only with one Pin is initially that can satisfy fixed requirement, but under the long-term load-bearing service condition of wheel 2, the deformation of material is can not to keep away to fix Exempt from, if pin nearby or the material of itself generates deformation, just influences whether the relatively fixed of shaft 5 and rotor, and if benefit With the common fixed rotating shaft 5 of multiple pins and rotor, then correlating each other between multiple pins, for opposite between shaft 5 and rotor Reinforcement is played in fixation, keeps fixed effect more preferable.Angle is equal between pin after installation, and first from structural point, pin distribution is equal Even, structure is beautiful, then analyzes from fixed effect, if the angle between pin differs, then the stress of each pin is just unequal, it is long It will cause difference long, influence whole fixed effect.Therefore, angle is equal between the pin after this programme offer installation, architectonic beauty Sight and good fixing effect.

With reference to Fig. 7, the hub motor includes circuit line 18, the shaft 5 include cable-through hole section, the cable-through hole section with The fixed section 6 connects, and the cable-through hole section is used for through circuit line 18, and the cable-through hole section is composable structure.The mistake String holes section includes main body 19 and accessory body 20, and sliding slot is provided in the main body 19, and promising sliding rail is arranged on the accessory body 20, described Sliding rail and sliding slot, which are slidably matched, realizes the assembling of cable-through hole section.

The main body 19 is internally provided with the first groove, and first groove is a groove, and the main body 19 included String holes, the cable-through hole are that a through-hole is connected to the first groove, and main body 19 is arranged in close to the one of fixed section 6 in the cable-through hole End, the accessory body 20 are internally provided with the second groove, and second groove is a groove, first groove, the second groove Cooperatively forming threading hole for placing route, the main body 19 with cable-through hole includes fixed pan 21, and the fixed pan 21 is The step surface to sink in main body 19, main body 19 cooperate the face contacted to be known as interface, the interface and institute with accessory body 20 It is parallel to state fixed pan 21.The depth of first groove of the main body 19 is equal to the depth of the second groove of the accessory body 20.

In the present solution, cable-through hole section, by slidably assemble, slidably assemble is not needed by additional fixed structure It realizes, and good fixing effect, when installation only needs to slide sliding rail along sliding slot, the assembling of very convenient cable-through hole section.

In addition, interface is parallel with fixed pan 21, after wheel 2 is fixed, the direction for the main power received in shaft 5 and solid The normal direction for allocating face 21 is identical, if interface is parallel with fixed pan 21, then accessory body 20 and main body 19 also will receive and divide The power of the interface normal direction same direction, is at this moment that the power that sliding rail and sliding slot are subject to is smaller, not will cause damage to sliding rail and sliding slot, if Interface and fixed pan 21 are not parallel, then the power significant portion that main body 19 and accessory body 20 are subject to can be held by sliding rail and sliding slot By so that the reduction of the stress performance of main body 19 and accessory body 20, is easy to produce deformation, from the use for influencing electrodynamic balance vehicle.Therefore, The interface of main body 19 and accessory body 20 that this programme provides is parallel with the fixed pan 21 in main body 19, shaft 5 after assembling by Power performance is more preferable.

In addition, the depth of the first groove of main body 19 is equal to the depth of the second groove of accessory body 20, main body 19 and accessory body 20 It include the threading hole of half, at this moment for relative line setting angle, the opening of threading hole is 180 °, is the largest out at this time Mouthful, and there are also the threading holes of half to be used for putting before route is installed, and has certain fixed function to route, can facilitate line The installation process on road.

Optionally, the depth of the first groove of the main body 19 can also be greater than the depth of the second groove of the accessory body 20 Degree.

The depth of first groove is greater than the depth of the second groove, then that is main body 19 includes a big portion of threading hole Point, in route installation process, it will be first routed through threading hole, it is then that route is semifixed in the threading hole of main body 19, Accessory body 20 is finally installed, route is fixed, during semifixed, because route is relatively soft, fixation is not very convenient, and including The main body 19 of most of threading hole can surround railway superstructures mostly, make route " coming in be easy away difficulty ", this is also square Just the installation of accessory body 20 after.Therefore, the interface of this programme provider 19 and accessory body 20 is biased to accessory body 20 in position, side Just fixation when route is installed.

With reference to Fig. 8, the rotor includes insulation spacer, and the insulation spacer plays insulating effect, and the insulation spacer includes Vertical insulation spacer 22, the vertical insulation spacer 22 is vertical with the axial direction of the shaft 5, the vertical insulation spacer 22 In integrated formed structure.

Vertical insulation spacer 22 on rotor is designed as an entirety, and a kind of existing 2 hub motor of electrodynamic balance wheel turns Vertical insulation spacer 22 on son be all it is relatively independent, when installation, needs to be punctured into rotor in turn, and needs after installing Each vertical insulation spacer 22 is aligned, and such installation effectiveness is low, if vertical insulation spacer 22 is designed as an entirety, then It only needs to be inserted into rotor when installation, meeting nature alignment improves the efficiency of installation.Therefore, this programme, which will provide, to erect on rotor Straight insulation spacer 22 is designed as an entirety, and vertical insulation spacer 22 is facilitated to install.

The insulation spacer includes vertical insulation spacer 22 and level insulation gasket, the level insulation gasket and it is vertical absolutely 22 seamless combination of edge gasket.The level insulation gasket includes inside level insulation gasket 24 and outside level insulation gasket 23, 22 side of vertical insulation spacer and outside level insulation gasket 23 cooperate, the other side of the vertical insulation spacer 22 and institute Outside level insulation gasket 23 is stated to cooperate, the vertical insulation spacer 22 and outside level insulation gasket 23 be set as one it is whole Body.The level insulation gasket and vertical insulation spacer 22 of one include junction, and the junction is vertical insulating trip and outside The part of level insulation piece contact, the turning of the junction are rounded corner.The vertical insulation spacer 22 includes first end face And second end face, the level insulation gasket include inside level insulation gasket 24 and outside level insulation gasket 23, described One end face is overlapped with the outer end face of the outside level insulation gasket 23, the outer end face of the outside level insulation gasket 23 be by One end of nearly compartmented 10, the second end face are overlapped with the outer end face of the inside level insulation gasket 24, the inside water The outer end face of flat insulation spacer 24 is the one side not contacted with vertical insulation spacer 22.

The rotor includes rotor core 25, and the rotor core 25 cooperates with shaft 5, and the rotor core 25 includes coil slot 26 And gear, the area at interval of the coil slot 26 between each gear, the outer surface of the vertical insulation spacer 22 are equal to The area of 26 inner surface of coil slot, the outer surface of the vertical insulation spacer 22 are the face contacted with coil slot 26, the coil The inner surface of slot 26 is the one side contacted with vertical insulation spacer 22.The rotor core 25 includes electronic component 29 and tooth 30, institute It states electronic component 29 to be fixed on tooth 30, the outer profile that the outer profile diameter of the level insulation gasket is equal to coil slot 26 is straight Diameter.

Level insulation gasket and vertical 22 seamless combination of insulation spacer, if level insulation gasket and vertical insulation spacer 22 it Between have the gap, then coil just has the case where contacting with rotor core 25, hub motor disabler can be made in this way, only make water Flat insulation spacer and vertical 22 seamless combination of insulation spacer just can guarantee isolation coil and rotor core 25, keep hub motor normal Running.Therefore, this programme provides level insulation gasket and vertical 22 seamless combination of insulation spacer, prevents coil from connecing with rotor core 25 Touching.

In addition, vertical insulation spacer 22 and level insulation gasket design are an entirety, whole structure sealing effect is more Good, coil winding is more convenient, preferably completely cuts off coil and rotor, while the level insulation gasket of vertical insulation spacer 22 and outside It installs together, reduces the process that a step is installed separately, promote installation effectiveness.Therefore, this programme provides vertical insulation spacer 22 It is designed as an entirety with outside level insulation gasket 23, insulation function is more preferable and installation effectiveness is high.

In addition, the area of the outer surface of vertical insulation spacer 22 is equal to the area of 26 inner surface of coil slot, installation in this way is perpendicular When straight insulation spacer 22, the interaction force between 26 surface of outer surface and coil slot of vertical insulation spacer 22 just, neither Generate sliding after letting go, and will not tension and difficult insertion.Therefore, this programme provides the face of the outer surface of vertical insulation spacer 22 Product is identical as the area of 26 inner surface of coil slot of rotor core 25, fixation when vertical insulation spacer 22 being facilitated just to install.

In addition, the outer profile diameter of level insulation gasket is equal to the outer profile diameter of coil slot 26, such tooth 30 is opposite to be had Extra Spatial Residual goes out, and electronic component 29 just facilitates fixation, and compares a kind of existing hub motor of electrodynamic balance vehicle, this Scheme can also save material, functionally it is also ensured that coil will not touch tooth 30 when winding.Therefore, this programme provides water The outer profile diameter design of flat insulation spacer is the outer profile diameter equal to coil slot 26, saves material and is the electronics on rotor The installation of element 29 provides sufficient space.

In addition, horizontal be designed as rounding corner structure with vertical integrated insulation spacer junction external corners, if junction It is not processed, is straight turning in structure, when coil winding, straight turning has one to prop up coil, causes coil at straight turning Place generates gap, makes the winding low efficiency of coil, not only wastes coil, but also causes coil functionally effect poor, if junction is designed For rounding corner structure, pass through then coil can smoothly transit, a series of problems appeared above can be avoided.Therefore, this programme mentions It is designed as rounding corner structure with vertical integrated insulation spacer junction external corners for horizontal, coil winding effect is more preferable.

In addition, the first end face and the second end face level insulation pad with two sides respectively of the vertical insulation spacer 22 after installation The outer end face of piece is overlapped, that is, the width of vertical insulation spacer 22 is equal to the width of rotor core 25 plus two sides level insulation pad The thickness of piece, if the width that the width of vertical insulation spacer 22 is less than rotor core 25 adds the thickness of two sides level insulation gasket, It would be possible that locating effect is bad when will appear installation level insulation gasket, and structure between horizontal and vertical insulation spacer 22 On not enough inlay completely, it appears that irregular beauty；If the width that the width of vertical insulation spacer 22 is greater than rotor core 25 adds The thickness of two sides level insulation gasket, causes waste of material.Therefore, this programme provides 22 both ends of vertical insulation spacer after installation Face is overlapped with the outer end face of the level insulation gasket of two sides respectively, facilitates the fixation of level insulation gasket and structure neat appearance.

With reference to Fig. 8 and Fig. 9, the inside level insulation gasket 24 includes bulge-structure 27 and through-hole, the through-hole setting The fringe region of through-hole, the bulge-structure 27 is arranged in the center of level insulation gasket 24 in inside, the bulge-structure 27 The surface of inside level insulation gasket 24 is protruded from, the rotor core 25 includes sunk structure 28, and the sunk structure 28 is recessed In the surface of rotor core 25, the bulge-structure 27 cooperates with sunk structure 28 realizes that the installation of level insulation gasket is fixed Position.The deep equality that the height and sunk structure 28 of 27 protrusion of bulge-structure are recessed.The bulge-structure 27 is cuboid, The sunk structure 28 is cuboid, and level insulation gasket is realized in the cuboid of the protrusion and the cuboid installation cooperation of recess Installation positioning.The cuboid of the protrusion and the cuboid quantity of recess are one.

Mutually matched location structure is designed on inside level insulation gasket 24 and rotor core 25, because in level insulation It when gasket is installed, needs to be fixed for a suitable position, facilitates subsequent other component installations, and 25 material of rotor core Cost be higher than level insulation gasket material cost, so on inside level insulation gasket 24 design bulge-structure 27, Groove structure is designed on rotor core 25, to save cost.Therefore, this programme offer is set on level insulation gasket and rotor core 25 Mutually matched location structure is counted, the installation of level insulation gasket is facilitated to position.

In addition, the deep equality that the height and sunk structure 28 of the protrusion of bulge-structure 27 are recessed, such bulge-structure 27 with Sunk structure 28 be coupled it is rear very close to each other, then level insulation gasket also just do not have activity space, make level insulation gasket Positioning is firm.

In addition, bulge-structure 27 and sunk structure 28 are both designed as cuboid, rectangular shape is relatively regular, in the length of protrusion After the cooperation of the cuboid of cube and recess, rotation to level insulation gasket and the binding effect moved horizontally are good, but also water The fixed effect of flat insulation spacer is more preferable.

In addition, the cuboid of protrusion and the cuboid quantity of recess design individually, because of the protrusion of cuboid and recess Good fixing effect after structure 28 cooperates, and consider can't to be rotated in the use of level insulation gasket or horizontal sliding Power, so the cuboid of protrusion and the cuboid quantity of recess are both designed as one, then mutually installation cooperation can satisfy water The fixed effect of flat insulation spacer, and cost is relatively low.

As another embodiment of the present invention, unlike the embodiments above is, the pin includes inserting paragraph and starting Section, the inserting paragraph are connect with the initial segment, and the diameter of the inserting paragraph is greater than the initial segment, and the inserting paragraph of the pin is provided with spiral shell Screw thread is respectively arranged in line, first cotter way 8 and the second cotter way 9, pin is fitted through with cotter way to be screwed.

The initial segment includes outer end face and inner face, and the inner face is the one end connecting with inserting paragraph, the outer end Face is oppositely arranged with the inner face, and fluted, the groove and extracting tool cooperation realization pin are arranged on the outer end face Dismounting.The groove is rectangular strip.The groove includes notch, and the notch is set as chamfering, and the chamfering is inclined in slot. The non-bulging outer end face in centre bore 7 of the outer end face of the initial segment, the outer end face of the centre bore 7 are close to compartmented 10 On one side.

Pin is fixed using screw thread installation, and the pin and cotter way of existing fixed rotating shaft 5 and rotor are realized using interference fit, peace It is larger to fill difficulty, it is a kind of installation method of lesion element that when installation can be generated by percussion power portion faces, which strikes trace, if pin passes through Engagement thread is rotated to be cooperated into cotter way, has not only been able to satisfy fixed requirement, but also substantially reduce installation difficulty.Therefore, this programme provides Pin using screw thread installation fix, facilitate installation.

In addition, the groove of the initial segment design and extracting tool cooperation of pin, because pin is to realize to install by screw thread rotation, So sell the structure that should just have and rotate the effect for implementing power, it is contemplated that the installation site of pin is narrow, only pacifies by the hand of people Dress is difficult, then just should consider that existing general utility tool is typically all to act in groove structure by tool, realize rotation dismounting Function, such as screw 33 and screwdriver.Therefore, this programme provides the groove of the stub end design and extracting tool cooperation of pin, side Just pin realizes dismounting with extracting tool effect.

In addition, the pin after pin installation, after the non-bulging outer end face in centre bore 7 of the outer end face of the initial segment, that is, installation In structure be it is non-salient, it is strong, beautiful at first appear to structural integrity in this way, then the initial segment be similarly positioned in shaft 5 in Between rotor, the cooperation of fixed rotating shaft 5 Yu rotor can be played, protrudes from 7 outer end of centre bore compared to the initial segment outer end face in this way The fixed effect of the case where face, the structure are more preferable, and since the initial segment is relatively large in diameter, and can also play and add to the fixed function of pin Strong effect.Therefore, this programme provides the non-bulging outer end face in centre bore 7 of outer end face of the initial segment after pin installation, makes structure Beautiful and fixed effect is more preferable.

In addition, groove design is rectangular strip, existing general screw dismounting tool includes flat bit screwdriver, this kind of screw The dismounting of pin may be implemented in knife.Therefore, it is rectangular strip that this programme, which provides groove design, facilitates the dismounting of flat bit screwdriver.

Optionally, the groove may be cross flower-shape.

Optionally, the groove may be regular hexagon.

Groove design is regular hexagon, that is, refers to interior countersunk head hex screw 33, the hexagonal in existing 33 dismantling device of screw Spanner is that use scope is wide, at low cost, complete in specifications, and compared with traditional screwdriver, die nut can flexibly change User always fastens countersunk head hex screw 33, can also realize and tear open in very narrow position even if the use of countersunk head hex screw 33 Dress, and force is divided into six angles by die nut, greatly protects countersunk head hex screw 33.Therefore, this programme provides groove It is designed as regular hexagon, is easy to use die nut dismounting pin.

As another embodiment of the present invention, with reference to Figure 10 and Figure 11, unlike the embodiments above is, described to cross line Hole section includes fixing piece, and the tail end of the main body 19 is provided with the first fixed bit, and the tail end of the main body 19 is far from rotor One end, the tail end of the accessory body 20 are provided with the second fixed bit, and the tail end of the accessory body 20 is one end far from rotor, and described the Complete fixed bit is formed after one fixed bit and second fixed bit cooperation, the fixing piece and the installation of complete fixed bit cooperate.

The outer surface of first fixed bit is provided with screw thread, and the outer surface of second fixed bit is provided with screw thread, institute It states the first fixed bit and second fixed bit cooperatively forms a bolt 32, the fixing piece is nut 31, in the nut 31 Side wall is provided with screw thread, and the bolt 32 cooperates with the installation of nut 31.

The wheel 2 includes interior wheel bearing 35, and the nut 31 is circular cylinder, and 31 outer diameter of nut was not more than line The interspersed cooperation of hole section outer diameter, the cable-through hole section and the interior wheel bearing 35.The nut 31 includes inner circle and outer circle, described outer Round surface is provided with a plane, and the distance of central axes to the plane of the nut 31 is greater than 31 inner circle radius of nut and is less than spiral shell Female 31 exradius.

The nut 31 includes outer end face, and the outer end face of the nut 31 is after nut 31 cooperates with bolt 32 towards shaft The one side of 5 ends, the cable-through hole section includes outer end face, and the outer end face of the cable-through hole section is the end of shaft 5, the nut 31 outer end faces are overlapped with cable-through hole section outer end face.

In the present solution, the main body 19 and accessory body 20 after assembling are fixed by fixing piece, main body 19 and accessory body 20 after assembling If no fixing piece is fixed, can there are main body 19 and the separated hidden danger of accessory body 20, the main body after installation can be guaranteed by fixing piece 19 and accessory body 20 it is not separated, so that the main body 19 and accessory body 20 after assembling are stronger.

In addition, the bolt that fixing piece forms the first fixed bit and the second fixed bit after selecting nut 31, nut 31 to install 32 have a package power, which plays 360 ° of position-limiting actions to main body 19 and accessory body 20, and the first fixed bit and second is consolidated The screw thread of positioning and the threaded function of nut 31 have the limit for being parallel to 5 centerline direction of shaft to make main body 19 and accessory body 20 It can be very good the main body 19 after being fixedly mounted and accessory body 20 with, such nut 31, meanwhile, nut 31 is installed simple, conveniently.Cause This, the fixing piece that this programme provides selects nut 31, good fixing effect, easy for installation.

In addition, 31 outer diameter of nut is not more than cable-through hole section outer diameter, if 31 outer diameter of nut is greater than cable-through hole section, line will lead to Wheel bearing 35 is difficult in hole section is interspersed, and 31 outer diameter of nut is not more than cable-through hole section outer diameter, can be convenient shaft 5 and interior wheel bearing 35 interspersed cooperations.

In addition, the design plane in the outer circle of nut 31, nut 31 be used to be fixedly mounted after main body 19 and accessory body 20, that Nut 31 itself is needed after installation securely, so needing to apply nut 31 certain twisting resistance when installation, if forcing in Cylindrical surface, then nut 31 will not be tightened, because being inconvenient to exert oneself, after design plane on the external cylindrical surface in nut 31, hand Finger or force application means can act on plane, conveniently exert oneself, and such nut 31 can also be fixed tighter.Therefore, this programme mentions For the design plane in the outer circle of nut 31, force when nut 31 being facilitated to install.

In addition, 31 outer end face of nut after installation is overlapped with cable-through hole section outer end face, the nut 31 after installing in this way is whole Structure all plays booster action to main body 19 and accessory body 20, more preferable to the fixed effect of main body 19 and accessory body 20 after installation, and And structure neat appearance in appearance.Therefore, 31 outer end face of nut that this programme provides after installation is overlapped with cable-through hole section outer end face, Beautiful and good fixing effect.

Optionally, the surface of the outer circle of the nut 31 is rough surface, and the surface of the outer circle of the nut 31 is nut 31 Force surface when installation.

The outer round surface of nut 31 is designed as rough surface, because periphery is force surface when nut 31 is installed, then its Rough surface can be with increasing friction force, and stressed effect is good, also just facilitates the installation of nut 31.

Optionally, the inner surface of the first fixed bit of the main body 19 is provided with screw thread, and the second of the accessory body 20 is fixed The inner surface of position is provided with screw thread, and the fixing piece is screw 33, and the main body 19 and accessory body 20 install later half internal screw thread composition Internal thread hole, the internal thread hole and the installation cooperation of screw 33.The screw 33 includes head and inserting paragraph, the complete fixation Position includes insertion groove and mating groove, and the diameter of the mating groove is greater than the diameter of insertion groove, the inserting paragraph insertion of the screw 33 In insertion groove, the head of the screw 33 and mating groove cooperate, the head end and cable-through hole section outer end face weight of the screw 33 It closes, the head end of the screw 33 is an end face far from inserting paragraph, and the outer end face of the cable-through hole section is the end of shaft 5 End.

Fixing piece selects screw 33, can limit the main body 19 after installation using screw 33 and accessory body 20 generates opposite shifting It is dynamic, the main body 19 after being fixedly mounted and accessory body 20 are helped, and the installation of screw 33 is simply, conveniently.

In addition, 33 head end of screw after installation is overlapped with cable-through hole section outer end face, after screw 33 is installed, so that head Stealthy in cable-through hole section, that is, head end is overlapped with cable-through hole section outer end face, and such appearance seems that globality is strong, Micron Technology, And screw 33 is completely into the main body 19 and accessory body 20 after can be very good fixed installation in cable-through hole section.Therefore, this programme 33 head end of screw after providing installation is overlapped with cable-through hole section outer end face, beautiful and good fixing effect.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention Protection scope.

Claims

1. a kind of hub motor of electrodynamic balance vehicle, which is characterized in that the electrodynamic balance vehicle includes car body and is fixed on vehicle The wheel of body two sides, the wheel include hub motor, and the hub motor includes shaft, rotor and pin, and the shaft includes Fixed section, the fixed section are that threaded region is arranged in the outer surface of shaft, and the outer surface of the fixed section is provided with first Cotter way, first cotter way are a groove, and the rotor includes centre bore, and the centre bore is a through-hole, the centre bore Inner sidewall is provided with screw thread, and the inner sidewall of the centre bore is provided with the second cotter way, and second cotter way is a groove, shaft and Rotor is threadedly engaged installation by the centre bore of the fixed section of shaft and rotor, and first cotter way and second cotter way are matched Conjunction forms cotter way, and the pin and cotter way cooperation are fixed.

2. a kind of hub motor of electrodynamic balance vehicle as described in claim 1, which is characterized in that the shaft includes the first company Connect section, compartmented and the second linkage section, described compartmented one end connects the first linkage section, the other end connection of the compartmented the Two linkage sections, the diameter of the compartmented are greater than the diameter of the first linkage section, and the diameter of the compartmented is greater than the second linkage section Diameter, the height of the outer surface of the compartmented is higher than the height of the bottom surface of first cotter way, and the shaft included line Hole section, the hub motor include circuit line, and the cable-through hole section is used for through circuit line, the cable-through hole section and the fixation Section connection, the cable-through hole section includes outlet section, and the outlet section is cable-through hole section close to one end of fixed section, outlet section it is straight Diameter be greater than fixed section diameter, the shaft be equipped with escape groove, the escape groove be a groove, the escape groove for pin into Enter cotter way, the floor height of the escape groove is lower than the floor height of the first cotter way.

3. a kind of hub motor of electrodynamic balance vehicle as claimed in claim 2, which is characterized in that the outlet section is provided with one A outlet hole, in compartmented, the diameter of the compartmented is less than the diameter of fixed section for the escape groove setting.

4. a kind of hub motor of electrodynamic balance vehicle as claimed in claim 2, which is characterized in that the escape groove includes cotter way Mouthful, the cotter way mouth is opening of the escape groove far from fixed section one end, and the cotter way mouth is rounding corner structure.

5. a kind of hub motor of electrodynamic balance vehicle as described in claim 1, which is characterized in that the width of the pin is greater than institute The width of cotter way is stated, the height of the cotter way is not more than the height of pin, and the fit system between pin and cotter way is interference fit.

6. a kind of hub motor of electrodynamic balance vehicle as claimed in claim 5, which is characterized in that the head of the pin is chamfering Structure, the head of the pin are the one end for being introduced into cotter way.

7. a kind of hub motor of electrodynamic balance vehicle as claimed in claim 5, which is characterized in that the tail portion of the pin is flat Face, the tail portion of the pin enter one end of cotter way after being.

8. a kind of hub motor of electrodynamic balance vehicle as claimed in claim 5, which is characterized in that the wheel includes felling axe Hold, insertion outer wheel bearing section and the outer wheel bearing of the shaft are connected and fixed, the shaft include the first linkage section, compartmented and Second linkage section, described compartmented one end connect the first linkage section, and the other end of the compartmented connects the second linkage section, described The diameter of compartmented is greater than the diameter of the first linkage section, and the diameter of the compartmented is greater than the diameter of the second linkage section, the pin The not convex outer end face in compartmented of tail plane, the tail portion of the pin enters one end of cotter way after being, the compartmented it is outer End face is one side of the compartmented close to outer wheel bearing.

9. a kind of hub motor of electrodynamic balance vehicle as described in claim 1, which is characterized in that the quantity of the pin has more A, the side wall of the centre bore is provided with corresponding cotter way, and the pin and cotter way cooperation are fixed, after multiple pins installations between Angle it is equal.

10. a kind of electrodynamic balance vehicle, which is characterized in that the electrodynamic balance vehicle includes car body and the vehicle for being fixed on car body two sides Wheel, the wheel includes hub motor as claimed in any one of claims 1 to 9.