CN101434282A

CN101434282A - Hub with brake function

Info

Publication number: CN101434282A
Application number: CNA2007101928385A
Authority: CN
Inventors: 刘运柳
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-18
Filing date: 2007-11-18
Publication date: 2009-05-20

Abstract

A hub provided with brake function comprises a brake-sheet expansion braking part, a spring torsion absorbing-dynamic braking part and a control part. The typical structure is the adoption of a torsion spring on the right side; the right end of the spring is clamped by a connector and integrated with a casing; the left end of the spring is clamped by a support seat; the left side of the brake hub is an expansion braking part; a rotary camshaft fixedly coupled with an operation handle is sleeved on a wheel shaft; a left-shaft gear is arranged on the external part of the hub and the brake sheet is arranged on the outer circle of the left-shaft gear; when the rotary camshaft rotates, a brake column leads the friction to be generated between the brake sheet and the casing and simultaneously leads the spring to generate the torsion absorbing-dynamic so as to generate resistance. The brake hub is provided with the structure with the double braking function and excellent braking performance.

Description

Flower-drum with brake function

Technical field

The present invention relates to the brake of bicycle, Electrical Bicycle, wheel Wheel-chair.

Background technology

Patent of invention 200410010525X has disclosed a kind of spring and has reversed and absorb kinetic energy bicycle is slowed down up to the mechanism of brake, the city car is had good braking effect, but mountain bike needs emergency brake, and it is slow that reaction is wanted.

Summary of the invention

The objective of the invention is 200410010525X is improved, in the flower-drum housing, increase the brake of one-level expanding formula before the torque spring, and and torque spring organically combine, rely on the brake facing expanding to carry out friction eceleration during brake earlier, after the short time postpones, spring is reversed, realize brake fully.

The present invention realizes like this, flower-drum with brake function comprises that brake facing expanding friction brake partial sum spring reverses absorption kinetic energy brake part and actuating element, constitute by flower-drum housing, brake facing, torque spring, attaching parts, spring, supporting base, axle shelves, rotating cam axle, brake cylinder, fixed handle, bar handle etc., brake is installed in the flower-drum housing, is combined as a whole; The right side is a torque spring, is sleeved on the wheel shaft, and the right-hand member connected piece of spring blocks, and the attaching parts cylindrical has pattern chain to combine with the spline of housing endoporus, and the left end of spring is supported seat and blocks, and the supporting base endoporus is shaped on several grooves, and is sleeved on the right-hand member of left side axle shelves; The left side is an expanding formula brake part, the rotating cam axle that suit and bar handle connect firmly mutually on wheel shaft, rotating cam axle skin is a left side axle shelves, there is ball-collecting rack on the axle shelves, to roll, the motion of support housing, left side axle shelves link to each other with fixed handle, and fixed handle is bearing on the wheel shaft, have a plurality of elongated slots or bore some holes in the elongated slot position on the axle shelves of a left side; Have between brake facing, brake facing and the left side axle shelves to produce at a left side axle shelves cylindrical and get in touch, guarantee that brake facing can expanding and return, and brake weight is delivered on the vehicle frame by left side axle grade or force-bearing piece and fixed handle by pin or ring washer or force-bearing piece; So-called rotating cam axle is the hollow cylinder that is shaped on a plurality of pits on circumference, has oblique line to link to each other with excircle from pit bottom and forms an inclined-plane, places brake cylinder or steel ball in the pit; When the rotating cam axle rotated, brake cylinder or steel ball can outwards raise along the inclined-plane, promoted brake facing and extended out; The another kind of version of expanding formula brake is that brake facing two ends endoporus is the inclined-plane, supported by two identical braking cones of angle, right braking cone connects firmly mutually with wheel shaft, and left braking cone can move right under external force, forces the outside expanding of brake facing to rub mutually with housing; When left braking cone moves right, promote several direct selling simultaneously and move to right, insert in the hole of torque spring left end supporting base.

Above structure can only adopt the brake of expanding formula also can only adopt the torque spring brake, and it is perfectly safe to guarantee to brake when adopting the dual mode brake simultaneously.

Above structure all adopts the hand operation mode to realize brake; Can also adopt counter the stepping on of pin to make flywheel and flywheel shaft counter-rotating realize brake of expanding formula or the brake of spring torsional mode.

Description of drawings:

Fig. 1 to Fig. 8 is expanding formula and spring torsional mode dual brake car flower-drum

Fig. 9, Figure 10 are the flower-drum that only adopts the brake of spring torsional mode

Figure 11, Figure 12 are the flower-drum that only adopts the brake of expanding formula

Figure 13, Figure 14, Figure 15 are the counter flower-drum of stepping on brake of pin

Figure 16 is an expanding formula brake section drawing

Figure 17 is the constructional drawing of using among Fig. 6, Fig. 8, Figure 13, Figure 14, Figure 15

Figure 18 is the structural representation that brake facing adopts the force-bearing piece supporting

Figure 19 is the outside drawing of relevant part

Figure 20 is the constructional drawing of ordinary single-stage flywheel applications Figure 17

The specific embodiment

Elaborate below in conjunction with accompanying drawing:

Comprise housing 1 in the accompanying drawing, wheel shaft 2, torque spring 3, attaching parts 4, spring bearing housing 5, flywheel 6, flywheel shaft 7, left side axle shelves 8, rotating cam axle 9, fixed handle 10, bar handle 11, brake facing 12, brake cylinder or steel ball 13, left side braking cone 14, right braking cone 15, sell 16 directly to households, support plate 17, pull back spring 18, bar handle pull back spring 19, force-bearing piece or sell 20, pushing pin 21, pawl base or round pin seat 22, ratchet or garden pin 23, steel bushing 24, ball-collecting rack and steel bowl 25, little axle shelves 26, arc pit 27, brake steel ball 28, brake cam 29.

Fig. 1 to Fig. 8 is expanding formula and spring torsional mode dual brake car flower-drum, brake parts all is installed within the housing, be illustrated as non-braking state, gapped between left side brake facing 12 and the housing 1, the part of brake cylinder 13 is ensconced in the groove of rotating cam axle 9, and another part is ensconced in the elongated slot of left side axle shelves; The right-hand member of right side torque spring 3 produces with housing 1 by attaching parts 4 and gets in touch, and the torque spring left end has spring bearing housing 5 to block, and is shaped on a plurality of grooves in the supporting base 5 big outer circular holes, and is sleeved on the right-hand member of left side axle shelves 8; When normally riding, housing drives torque spring 3 zero load rotations by attaching parts 4; During brake, pulling bar handle 11, drive rotating cam axle 9 and rotate cylinder 13 jack-up of to brake, and make brake facing 12 outside expandings be close to housing inner hole wall generation friction drag, realize slowing-down brake, meanwhile, because the right-hand member of brake cylinder has entered in the endoporus of torque spring supporting base 5 simultaneously, because the fluted brake cylinder that blocks of endoporus blocks, the left end of torque spring 3 can not be rotated, and torque spring 3 right-hand members are still driven rotation forward by housing, make torque spring hold wheel shaft 2 gradually tightly, the torsion that is produced stops housing to rotate, and absorbs kinetic energy and realizes brake once more; This example is a kind of structure that the secondary brake function is arranged, and is most preferred embodiment; Fig. 2 and Fig. 1 difference are that left side axle shelves are shorter, and do not slot, adopt force-bearing piece 20 to support brake facing 12 and brake cylinder 13, version is shown in Figure 18 A and the B, force-bearing piece 20 cylindricals have two projectioies to match with breach on the brake facing, prevent that brake facing from rotating and brake weight is passed on the wheel shaft; Have a force-bearing piece endoporus to have breach (Figure 18 A) so as the control arm that makes rotating cam axle 9 by and turn certain angle, also have the groove of placing the brake cylinder on the cylindrical of force-bearing piece 20, hole shape matches with wheel shaft in it, and guarantees and can not rotate.

Fig. 4, Fig. 5, Fig. 7 is the brake flower-drum of travelling brake circular cone, brake facing 12 is to be placed on the oblique shoulder of the identical left and right sides braking cone of taper angle, and on a braking cone, be shaped on projection at least, can prevent that brake facing from rotating and brake weight is passed on the wheel shaft, be illustrated as non-braking state, gapped between brake facing and the housing, right braking cone connects firmly with axle, occupy a plurality of holes on it, one end of direct selling 16 is ensconced in the hole, selling the other end directly to households has support plate 17 supportings, and braking cone pull back spring 18 is by support plate 17 and sell the end face of all the time left braking cone 14 being pressed to left side axle shelves directly to households; On the left side axle shelves 8, also occupy a plurality of holes, be equipped with in the hole and can make axially movable pushing pin 21, be shaped on a plurality of inclined-planes on the bar handle 11, the direction on inclined-plane be when bar handle when the direction of riding spurs, pushing pin 21 can be moved right; A plurality of steel balls are equipped with in the bar handle left side, to alleviate axial force, make the bar handle return flexible; Pushing pin 21 right-hand members are adjacent to left braking cone 14, and left end is close to the bottom on bar handle inclined-plane; Pulling bar handle 11 moves right pushing pin 21, and promotes left braking cone 14 and move right during brake, and brake facing 12 outside expandings are tightly pressed to inner walls, produces friction drag, the realization slowing-down brake; When left braking cone 14 moves right, selling 16 directly to households inserts to the right in the hole of supporting base 5 of torque spring 3 left ends simultaneously, the torque spring left end is stopped operating, and right-hand member is still driven forward by housing 1, force torque spring to hold wheel shaft tightly and produce torsion, absorb kinetic energy and realize once more slowing down, up to brake fully, this example also has dual brake car function; Wheel shaft 2 adopts hexagon (also can adopt other shapes such as spline) among the figure, fixed handle 10, and left axle bumper 8, hole shape matches with the wheel shape shaft in the right braking cone 15; Fig. 5 is another kind of promotion form, respectively be shaped on the inclined-plane that cooperatively interacts at the right-hand member of left side axle shelves 8 and the left end of left braking cone 14, the operative orientation on inclined-plane is that left braking cone is moved right, bar handle 11 connects firmly mutually with left side axle shelves, when forward direction pulling bar handle, left side axle shelves rotate, and left braking cone moves right, make the brake facing expanding realize brake, brake weight is to be delivered on the vehicle frame by brake facing, right braking cone, wheel shaft and fixed handle.The structure of Fig. 6, Fig. 8 is identical with Fig. 1, Fig. 2, only at right-hand member flywheel shaft 7 has been installed, and ratchet seat or round pin seat 22, ratchet or round pin 23 can be equipped with the monolithic flywheel, and flower-drum, brake, flywheel three are integrated.Figure 17 is Fig. 8 B-B cutaway view, be shaped on some arc pits 27 (if box hat is then directly made pit on housing) on the right steel bowl 25 that connects firmly with housing among the figure, on round pin seat 22, make 2 oblique elongated slots, round pin 23 (employing flat square key function is identical) is installed in the skewed slot, and pull back spring 18 outwards pushes up round pin all the time; When flywheel shaft 7 drove round pin seats 22 and rotates by the arrow A direction, round pin 23 was held up by skewed slot, drives housing 1 and advances; When flywheel shaft reversed, the curve of arc pit just was pressed into round pin (being a kind of unidirectional mechanism) in the skewed slot on the part 25; Figure 20 be Figure 17 structure applications in the single freewheel of Fig. 3, round pin seat and housing are connected firmly, the housing of flywheel is a driving link, the direction of arc groove and skewed slot is opposite, rotates by arrow B; Figure 17 structure also can be applicable in the multistage flywheel 6 of Fig. 1.

Fig. 9, Figure 10 are the brake flower-drum that only adopts torque spring, occupy a plurality of holes on the left side axle shelves 8 among Fig. 9, brake steel ball 28 is housed in the hole, when the brake cam 29 on being sleeved on wheel shaft moves right, enter in the groove of spring bearing housing 5 with regard to a part that makes the brake steel ball, thereby stop torque spring 3 to stop operating, realize brake; Figure 10 is that bar handle passes through left side axle shelves and directly will pushing pin 21 inserts and stop torque spring to rotate in spring bearing housings 5 holes;

Figure 11, Figure 12 are the flower-drum that only adopts expanding formula brake, promptly directly remove the torque spring part, and Figure 11 is applicable to that rear axle can adorn flywheel, Figure 12 is used for front axle, the schematic structure form adopts the left part of Fig. 2, also can adopt the structure of the left part of Fig. 1, Fig. 4, Fig. 5, and function is identical;

Figure 13, Figure 14, Figure 15 are the counter flower-drum of stepping on brake of pin, and when riding forward, flywheel shaft 7 rotates forward by the ratchet 23 promotion housings that pushing pin 21 drives on the pawl base 22; Because the inclined-plane that when the left end of flywheel shaft 7 is shaped on counter-rotating pushing pin 21 is moved to the left occupies corresponding hole on pawl base 22, pushing pin can carry out work by the part that also can promote the left side during counter stepping on; Supporting base 5 endoporus in torque spring left side have the spline on spline and the little axle grades 26 to match among Figure 13, little axle shelves left end links with spline and fixed handle, the supporting base 5 of torque spring 3 right-hand members is shaped on some grooves, and be sleeved on the cylindrical of attaching parts 4, spline fitted on spline and the housing is arranged on the big cylindrical of attaching parts, on attaching parts, also occupy a plurality of holes, brake steel ball 28 is housed in the hole, on wheel shaft, go back suit cam 29, during the flywheel shaft counter-rotating, cam 29 is moved to the left, and the part of brake steel ball 28 is entered in the groove of spring bearing housing 5 on torque spring right side, and attaching parts 4 just drives spring and reverses and realize brake; The right-hand member of the medium and small axle shelves 26 of Figure 14 is shaped on the tooth embedding, left end links to each other with fixed handle with spline, torque spring 3 right-hand members combine with housing by attaching parts 4, also being shaped on the tooth embedding on the spring bearing housing 5 of left end matches with tooth embedding on the little axle shelves, when normally riding, the two separates, and pin is anti-when stepping on, and pushing pin moves to left that the spring bearing housing 5 that promotes the torque spring left side moves left, two tooth embeddings are meshing with each other, and housing drive this moment spring reverses realizes brake; Figure 15 adopts the brake facing brake, brake facing 12 is bearing on the braking cone of the left and right sides, the braking cone 14 of left end, cylindrical is shaped on projection, can hinder the shelves brake facing and rotate, and brake weight is delivered on the fixed handle, endoporus has spline to match with spline on the little axle shelves, and pin is anti-when stepping on brake, and pushing pin 2 is moved to the left, right braking cone 15 is moved to the left, makes brake facing 12 outside expandings and housing 1 produce friction drag and realize brake.

Figure 16 is the structure that adopts the brake of expanding formula, and the section drawing at brake facing position is arranged, and figure A is non-braking state, and brake facing separates with housing, and brake cylinder 13 is attached to the bottom of rotating cam axle 9 grooves; Figure B is that the rotating cam axle has turned over an angle, and the cylinder 13 that will brake lifts, and forces brake facing 12 to press to housing generation friction drag; Figure C is the different collocation form of brake cylinder, adopts the quantity of brake facing and brake cylinder the amount doesn't matter as required, has adopted among Figure 16 among 3 Figure 18 and has had only 2; When left side axle shelves employing accounts for the mode in hole, use the identical steel ball of some diameters and replace cylinder; Fig. 3, Fig. 8, Figure 11 adopt aluminum hull, and other products also can adopt aluminum hull, but at the friction brake position, must inlay steel bushing 24 on the housing; Torque spring is to adopt the mode of holding tightly in above-mentioned each example, can also adopt expanding mode and compress mode.

Figure 19 is the outside drawing of several parts, and part 5 has section drawing and interior hole pattern, different structure, and the part shape installation site is different.

The brake flower-drum of above-mentioned various versions can directly be contained on the Electrical Bicycle, and part is direct if the monolithic wheel net can select the brake structure of different embodiment to brake becomes as a whole with the wheel net in the endoporus of wheel net.Various structure of the present invention can be replaced, and is used in combination.

Claims

1, the flower-drum with brake function comprises housing, wheel shaft, brake facing, left side axle shelves, rotating cam axle, left and right sides braking cone, cylinder, torque spring, attaching parts, spring bearing housing brake, bar handle, fixed handle etc., it is characterized in that the whole devices of all brake parts are within the flower-drum housing, left-hand portion is the brake of expanding formula, the position, right side is that torque spring reverses absorption kinetic energy slowing-down brake, and two parts organically combine simultaneously and adopt; The brake of expanding formula has multiple structure to form, a kind of is to be set with the rotating cam axle that connects firmly mutually with bar handle on wheel shaft, so-called rotating cam axle is the hollow cylinder that is shaped on a plurality of pits on circumference, there is oblique line to link to each other from pit bottom and forms an inclined-plane, place brake cylinder or steel ball in the pit with circumference; Rotating cam axle skin is a left side axle shelves, and left side axle shelves link to each other with fixed handle, and fixed handle is bearing on the wheel shaft; Have a plurality of elongated slots or occupy some holes on the axle shelves of a left side in the elongated slot position; The part of brake cylinder is in the pit of rotating cam axle, and a part is in the elongated slot of left side axle shelves; On left side axle shelves cylindrical, brake facing is arranged, produces by pin or ring washer between brake facing and the left side axle shelves and get in touch, guarantee that brake facing can expanding and return, and with brake weight by left side axle grade and fixed handle transmission with on the vehicle frame; Also can do left side axle shelves shorter, adopt force-bearing piece to support brake facing and brake cylinder, the force-bearing piece cylindrical has two projectioies to match with the breach of brake facing, prevent that brake facing from rotating and brake weight is delivered on the wheel shaft, wherein a force-bearing piece endoporus should have breach, and the control arm of rotating cam axle is passed through, and rotatable certain angle, also have the groove of placing the brake cylinder on the cylindrical of force-bearing piece, endoporus matches with axle and is not rotatable; The fitting surface that another kind of structure is brake facing and left and right sides braking cone is the identical circular conical surface of angle, brake facing is to be bearing on the oblique shoulder of left and right sides braking cone, and on a braking cone, be shaped on projection at least, prevent that brake facing from rotating and transmitting brake weight, right braking cone and wheel shaft connect firmly, and occupy a plurality of holes on it, and an end of direct selling is ensconced in the hole, selling the other end directly to households has the support plate supporting, and the braking cone pull back spring is pressed to left braking cone the end face of close left side axle shelves all the time by support plate and direct selling; Occupy a plurality of holes on the axle shelves of a left side, be equipped with in the hole and can make axially movable pushing pin, be shaped on a plurality of inclined-planes on the operating handle, the direction on inclined-plane be when bar handle to riding direction when pulling, the inclined-plane can move right pushing pin, and promotes left braking cone and move to right and force the brake facing expanding; Also having a kind of form that promotes is respectively to be shaped on the inclined-plane that cooperatively interacts at the right-hand member of left side axle shelves and the left end of left braking cone, and the operative orientation on inclined-plane is when when riding the direction pulling left braking cone being moved right with a left side bar handle that shelves connect firmly mutually; Wheel shaft is shaped as hexagon or spline, braking cone, little axle shelves, fixed handle, interior hole shape is identical with wheel shaft; Torque spring is sleeved on the wheel shaft, and right-hand member produces with attaching parts and gets in touch and connect firmly mutually by the spline of attaching parts cylindrical and the spline of housing; Left end is blocked by spring bearing housing, and the spring bearing housing endoporus is shaped on groove and is sleeved on left side axle shelves or the force-bearing piece, and the spring bearing housing that has enters corresponding some holes of having made for making to sell directly to households; Expanding formula brake part is to combine with spring bearing housing by brake cylinder or direct selling, realizes interrelating with torque spring, and realizes the secondary brake; Also can adopt the torque spring brake separately, account for a plurality of holes on the shelves of a left side, dress brake steel ball in the hole when brake cam on being sleeved on wheel shaft moves right, enters in the groove of spring bearing housing with regard to a part that makes the brake steel ball, and prevention is torqued into spring and rotates; Or directly pushing pin is inserted in the spring bearing housing hole by left side axle shelves with bar handle, stop torque spring to rotate; Also can adopt the brake of expanding formula separately, at this moment, not adorn the torque spring part; When the flower-drum right-hand member is equipped with flywheel, flywheel shaft, pawl base, ratchet and pushing pin, and can be made into flower-drum, brake, the Trinitarian product of flywheel when adopting torque spring or expanding formula brake facing; Also can be made into the anti-brake flower-drum of stepping on of pin, promptly being shaped on counter-rotating at the flywheel shaft left end time can make the inclined-plane that pushing pin is moved to the left and occupy the hole that pushing pin can pass through on pawl base, interior dress can promote the pushing pin of left side part time job, 3 kinds of version: A are arranged, be that torque spring left side supporting base endoporus has the spline on spline and the little axle grade to match, be shaped on some grooves on the torque spring right-hand member supporting base, and be sleeved on the cylindrical of attaching parts, the big cylindrical of attaching parts has spline and housing to connect firmly, also occupy a plurality of holes on the attaching parts, the brake steel ball is housed in the hole, cam is housed on the wheel shaft, when pushing pin moves to left, cam enters in the groove of spring bearing housing the part of brake steel ball, and torque spring just reverses, and realizes brake; B, be that right-hand member at little axle shelves is shaped on the tooth embedding, the torque spring right-hand member is connected by attaching parts and housing, also being shaped on the tooth embedding on the spring bearing housing of left end matches with tooth embedding on the little axle shelves, when pushing pin moves to left, two tooth embeddings are meshing with each other, torque spring is reversed embrace wheel shaft realization brake; C, be that brake facing is bearing on the braking cone of the left and right sides, have projection can stop brake facing to rotate on the left end braking cone, and brake weight is delivered on the fixed handle that endoporus has the spline on spline and the little axle grade to match; When pushing pin moves to left when promoting right braking cone and moving to left, the brake facing expanding is realized brake.

2,, it is characterized in that if Electrical Bicycle adopts the monolithic wheel net can select the brake structure of the different structure part of will brake directly as a whole with the formation of wheel net in the endoporus of wheel net according to the described flower-drum of claim 1 with brake function.

3, the flower-drum with brake function according to claim 1, it is characterized in that on the housing or with part that housing connects firmly mutually on make some arc grooves, on the round pin seat, make a plurality of oblique elongated slots, round pin or flat square key are installed in the skewed slot, pull back spring outwards pushes up round pin or flat square key all the time, when flywheel shaft drives the active of round pin seat do, can drive the housing motion, the curve of arc groove can only unidirectionally be pressed into round pin in the elongated slot during counter-rotating; If the direction of arc groove and skewed slot was opposite when housing was done initiatively.