CN105288991A

CN105288991A - Windsurfing competition vehicle

Info

Publication number: CN105288991A
Application number: CN201510638895.6A
Authority: CN
Inventors: 张榆生
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-09-27
Filing date: 2015-09-27
Publication date: 2016-02-03
Anticipated expiration: 2035-09-27
Also published as: CN105288991B

Abstract

The invention provides a windsurfing competition vehicle, which is driven on land. The advancing driving force of the competition vehicle is provided by virtue of a wind surf; and the competition vehicle is same with a sailboard in operating mechanism. The windsurfing competition vehicle is composed of the wind surf, a vehicle base plate, vehicle bridges, a wind surf connecting component, a straight moving/steering conversion device and a speed limiting switch, wherein the straight moving/steering conversion device is integrated on the wind surf; each of the vehicle bridges is of a trundle structure which is formed by combining three components, namely a wheel axle, a bridge truss and a steering hub; the steering hubs of the front and rear vehicle bridges and the wind surf connecting component are fixedly arranged on a longitudinal centerline from the head of the vehicle base plate to the tail of the base plate; the two steering hubs on the front and rear vehicle bridges are connected to the straight moving/steering conversion device by virtue of a same chain; and a speed-limiting resistor is connected to a speed-limiting coil when the speed-limiting pedal switch acts. On the basis of existing athletic fields, plazas and open roads, a windsurfing movement can be popularized as the condition of 2.5-13m/s of wind power is satisfied; on aspects of tourism and entertainment, the windsurfing movement is quite attractive through land-sea breeze coastal sightseeing; and even people in inland areas can feel the passion and fun of the windsurfing.

Description

Sail racing vehicle

Art

The present invention relates to motion, game, amusement aspect, the apparatus of athletics sports.

Background technology

At present, with the single athletics sports apparatus of wind drive, the known windsurfing except surface motions, this type of apparatus of land still belongs to blank.

Summary of the invention

The athletics sports apparatus windsurfing of existing wind drive, can not use on land.The invention provides one and provide by sail the driving force that moves ahead, manipulation mechanism is identical with windsurfing, the sail racing vehicle travelled on land.

The technical solution used in the present invention is: sail racing vehicle is made up of sail, car bottom plate, vehicle bridge, sail coupling assembling and integrated craspedodrome on it/turn to conversion equipment, speed-limiting switch; Sail distance from top ground ≮ 4M, sail area ≮ 3M ²; Spacing>=3* sail the mast of forward and backward vehicle bridge is to the spacing of center of air pressure point; Spacing+the 300mm of car bottom plate length>=forward and backward vehicle bridge; Car bottom plate width>=2* foot length+60mm; Vehicle bridge adopts by wheel shaft, bridge truss and the Castor structure that turns to hub 3 assembly to combine, and wheel is equipped with at wheel shaft two ends, turns to hub to coordinate meta steel spring plate mode to be connected with bridge truss hinge; Forward and backward vehicle bridge turns to hub and sail coupling assembling to be fixed on car bottom plate wrench on the longitudinal centre line of plate tail, sail coupling assembling turns between the mid point of line between hub to front steering hub forward and backward, drops on mast position corresponding within 10cm scope before and after mid point finally determine by sail center of air pressure point vertical line; Two in forward and backward vehicle bridge turn to hub sprocket wheel and craspedodrome/turn to conversion equipment sprocket wheel same chain to be connected, with realize straight-line travelling, steering procedure controlled and synchronous; Rear axle turns to hub to be embedded in planet and swings to gear train, realizes hind axle contrary with front axle gyratory directions; Car bottom plate is apart from ground ≯ 200mm, and car bottom plate and max. roll degree ≮ 22 °, ground, choose wheel external diameter and wheelspan accordingly; Speed limit floor push steps on the outer rim that ring set is contained in land on sail coupling assembling, during switch motion, by speed limit resistance and speed limit coils from parallel connection of coils.

Car bottom plate adopts multi-layer sheet or polymer composite to make, and head is streamlined, afterbody semi-circular shape, and edge is without corner angle, and front is coarse anti-skidding, and under respective panels, the front and back of axletree wheelspan are distinguished along the broadbands such as length inside and outside plate face painting different colours; Wrench to the longitudinal centre line of plate tail processes 3 locating holes, forward and backward vehicle bridge and sail coupling assembling are installed.

Vehicle bridge adopts by wheel shaft, bridge truss and the Castor structure that turns to hub 3 assembly to combine; The horizontal shaft hole of bridge truss and the platform of cutting in wheel shaft stage casing are fixed together, bridge truss flap guide with turn to hub hinge bodies bearing pin to be hinged; Flap guide superstructure has the goat's horn of fixing meta steel spring plate to dash forward, and inserts in hinge bodies inner chamber, by the active connection with it of meta steel spring plate during assembling; Difference≤the 30mm of pitch-row ground level in the horizontal shaft hole of bridge truss and flap guide.

Respectively there is the disk of a fixing U-shaped iron core of speed limit coil at wheel shaft two ends near axle journal position, it can fix at most 3 iron-core coils; Hub for vehicle wheel pair of horns contact bearing is assemblied on axle journal, and tight with bearing cap school; The corresponding U-shaped iron core position of speed limit coil, with the speed limit dish of wheel rim one, insert high strength permanent magnets on it.

At car bottom plate apart from ground level and car bottom plate with under ground max. roll degree a stable condition, wheelspan, wheel external diameter choose formula: wheel footpath=plate hight-1/2 wheelspan * tga-wheel sheet separation

Wheelspan is determined according to the person's of controlling balanced capacity, and skilled person can within 100mm, and beginner is then wider; Between car bottom plate and wheel, about 15mm is got in gap.

Turn to the convex cap of hub housing upper to be bumped into car bottom plate locating hole and fix, bottom forms bearing outer ring; What form bearing inner race turns to axle shelves hub turntable shaft being processed with raceway in bilateral, and race ring lid and turn to raceway corresponding position in hub lower housing portion and axle shelves bilateral is processed with the outer ring washer of outer raceway respectively; Load steel ball between interior axle bumper, outer ring washer, then mount cover to fit over race ring and turn to hub lower housing portion, form a pair deep groove ball bearing.

Front steering hub turntable shaft bottom is fixed with hinge bodies, and hinge bodies is fixed with sprocket wheel; Front steering hub turntable shaft and hinge bodies coordinate meta steel spring plate connecting bridge truss by hinge.

Rear steering hub housing cavity, the reverse side of convex cap is fixed with mandrel vertically downward and 3 planet pins, mandrel is equipped with and swings to gear, planet pin is equipped with the planetary gear of 2 disjunctors, wherein one with turn to that hub turntable shaft inner chamber internal gear engages, another with swing to gear and be meshed, like this, swinging to gear turns on the contrary relative to turntable shaft; Hinge bodies is fixed on and swings on the terminal pad of gear one, and rear bridge truss hinge coordinates meta steel spring plate to be attached thereto, and drives hind axle to turn to; Back axle sprocket wheel is arranged on and turns to hub turntable shaft bottom.

Sail coupling assembling body utilizes upper land and lower ring plate to be fixed in car bottom plate locating hole, body upper part centre bore installs tapered endoporus, the high inclination-angle joint ball bearing of customization, speed-limiting switch step on the outer rim that ring set is contained in land, two perpendicular feather keys are assemblied in land guide groove; Oblique angle is processed on the push rod top stepped on ring, withstands in the microswitch inclined-plane touching of level installation in the push-rod hole lower end of body; 4 pairs of contacts of 2 double-contact microswitches connect a power resistor respectively, and the speed limit coil cut with during switch motion on the U-shaped iron core in wheel speed-limitation dish magnetic field connects.

Sail racing vehicle remains windsurfing and utilizes sail center of air pressure point position to change to manipulate and turn to; During straight-line travelling, driving the lateral thrust produced, sprocket wheel need be locked for offsetting sail, during to guarantee that centre-of gravity shift makes car body occur rolling, front and back wheel does not produce deflection; When needing to turn to, be arranged on the craspedodrome of sail coupling assembling Lower Half/turn to mode conversion device, detecting manipulation signal simultaneously, the sprocket wheel of locking unclamped, enters and turn to pattern; For this reason, two in forward and backward vehicle bridge turn to hub sprocket wheel and craspedodrome/turn to conversion equipment sprocket wheel same chain to be connected, with realize straight-line travelling, steering procedure controlled and synchronous; Chain also can substitute with Timing Belt or gear train, when selecting Timing Belt, then changes sprocket wheel into synchronous pulley; When selecting gear drive, comprise forward and backward vehicle bridge gear and craspedodrome/turn to the gear of conversion equipment gear to add up to even number, remove simultaneously and swing to gear train in rear steering hub, construct identical with front steering hub.

The mast lower end of inserting sail coupling assembling joint ball bearing picks out one section of driving lever, and rod end is equipped with bulb, and bulb top is pressed on boundary dish; Boundary dish is Axisymmetric Spherical belt body, and lower section and push rod are connected as a single entity, and upper section is recessed curved surface; This curved surface is unified by central point and the joint ball bearing centre of sphere, radius equals the lower peripheral surface that the joint ball bearing centre of sphere draws to driving lever bulb centre of sphere distance, again by the maximum free inclination angle of mast allowed during straight-line travelling, the reverse extending line drawn from the joint ball bearing centre of sphere turns round 360 ° of cutting gained; Push rod actuating length≤driving lever Probe-radius+1/2 boundary dish is high; During straight-line travelling, push rod boundary dish is depressed into lower limit by top, and shift fork is stirred the up embedding of lower lock tube and to be locked grip assembly, and be locked with the sprocket wheel of upper lock tube one, front and back turn to hub to be limited at meta; When mast gradient exceeds craspedodrome free inclination angle, driving lever bulb shifts out boundary dish, and push rod boundary dish is playbacked by return spring, and shift fork, lower lock tube fall after rise, and upper lock tube, sprocket wheel are released, and front and back turn to hub to enter turn state; Upper and lower end face is processed with the grip assembly of locking of turning slot, be assemblied in sail coupling assembling body lower surface and drain pan suitable for reading between, middle frame cover is fixed on body lower part, lower lock tube through chute be assemblied in middle frame cover feather key on; The mating surface of upper and lower lock tube be processed with can the sliding bank of sinusoidal line of contraposition voluntarily secondary, push rod boundary dish in playback state, maximum rotation amount >=120 ° of grip assembly of locking, and ≯ 150 °.

The invention has the beneficial effects as follows, merge skill, strength exercise feature, the sail racing vehicle made according to ergonomics relevant parameter provides a brand-new motion for people, utilizes existing Track field, possesses 2.5m/s-13m/s wind condition simultaneously and can promote this motion; In tourism, body-building recreation, also there is wide expanding space, enrich area at wind energy resources and be expected to become the walking-replacing tool following low-carbon environment-friendly theory.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is sail racing vehicle overall structure schematic diagram.

Fig. 2 is car truss, axletree exploded view.

Fig. 3 is rear steering hub exploded view.

Fig. 4 is front steering hub exploded view.

Fig. 5 is sail coupling assembling body, speed-limiting switch exploded view.

Fig. 6 is conversion equipment exploded view of keeping straight on/turn to.

Fig. 7 is embodiment schematic diagram.

In Fig. 1 100, the car bottom plate that assembles, 101, car bottom plate, 102, chain, 200, vehicle bridge, 300, rear steering hub, 400, front steering hub, 6000, sail coupling assembling.

In Fig. 2 200, axle assembly, 201, wheel shaft, 2010, wheel shaft cuts platform, 2011, disk, 202, bearing, 203, bearing cap, 204, bridge truss, 2040, flap guide, 2041, goat's horn dashes forward, 2042, horizontal shaft hole, 205, U-shaped iron core, 2050, speed limit coil, 2051, iron core holder, 206, wheel, 2060, speed limit dish, 20600, high strength permanent magnet body, 2061, wheel hub, 207, bearing pin.

In Fig. 3 300, rear steering hub assembly, 310, hub shell epirelief cap, 311, enclose under hub shell, 3111, the outer ring washer of lower circle, 312, mandrel, 313, race ring lid, 3131, the outer ring washer of circle lid, 314, planet pin, 320, rear steering hub turntable shaft, 3201, raceway axle shelves in bilateral, 3202, steel ball, 3203, back axle sprocket wheel, 330, back axle hinge body, 3301, hinge bodies inner chamber, 3302, meta latch plate, 340, gear is swung to, 3401, terminal pad.

In Fig. 4 400, front steering hub assembly, 420, front steering hub turntable shaft, 4302, meta steel spring plate, 4303, propons sprocket wheel.

In Fig. 5 500, sail coupling assembling body and speed limit floor push, 510, sail coupling assembling body, 5100, upper land, 5101, upper land guide groove, 5102, body upper part centre bore, 5103, lower ring plate, 5104, section at the bottom of mast, 51040, load-bearing land, 51041, driving lever, 51042, driving lever bulb, 5105, joint ball bearing, 5106, push-rod hole, 520, ring stepped on by speed-limiting switch, and 5201, termination, inclined-plane push rod, 5202, perpendicular feather key, 5203, double-contact microswitch, 52030, inclined-plane touching.

In Fig. 6 600, sail coupling assembling body and craspedodrome/turn to conversion equipment, 610, middle frame cover, 6100, middle frame cover feather key, 6101, shift fork, 6102, core retainer plate, 6103, return spring, 6104, push rod, 61040, boundary dish top-surface camber, 61041, spherical zone body boundary dish, 620, lower lock tube, 6201, sinusoidal line sliding bank outward, 6202, lower lock tube chute, 630, grip assembly of locking, 6301, upper lock tube body, 63010, sliding bank in sinusoidal line, 6302, upper end plate, 63020, turning slot, 6303, sprocket wheel, 640, drain pan.

In Fig. 7 100, the car bottom plate that assembles, 700, sail, 701, mast.

Detailed description of the invention

In Fig. 1, Fig. 2, Fig. 3, Fig. 5, Fig. 7, sail racing vehicle is made up of sail (700), car bottom plate (101), vehicle bridge (200), sail coupling assembling (6000); Sail distance from top ground ≮ 4M, sail area ≮ 3M ²; Spacing>=3* sail the mast of forward and backward vehicle bridge is to the spacing of center of air pressure point; Spacing+the 300mm of car bottom plate length>=forward and backward vehicle bridge; Car bottom plate width>=2* foot length+60mm; Vehicle bridge adopts by wheel shaft (201), bridge truss (204) and the Castor structure that turns to hub (300,400) 3 assembly to combine, wheel (206) is equipped with at wheel shaft two ends, turns to hub to coordinate meta steel spring plate mode to be connected with bridge truss hinge; Forward and backward vehicle bridge turns to hub and sail coupling assembling to be fixed on car bottom plate wrench on the longitudinal centre line of plate tail, sail coupling assembling turns between the mid point of line between hub to front steering hub forward and backward, drops on mast (701) position corresponding within 10cm scope before and after mid point finally determine by sail center of air pressure point vertical line; Two in forward and backward vehicle bridge turn to hub sprocket wheel and craspedodrome/turn to conversion equipment sprocket wheel to be connected with same chain (102), with realize straight-line travelling, steering procedure controlled and synchronous; Rear axle turns to hub to be embedded in planet and swings to gear train (314,320,340), realizes hind axle contrary with front axle gyratory directions; Car bottom plate is apart from ground ≯ 200mm, and car bottom plate and max. roll degree ≮ 22 °, ground, choose wheel external diameter and wheelspan accordingly; Speed limit floor push steps on the outer rim that ring (520) is sleeved on land (5100) on sail coupling assembling, during switch motion, speed limit resistance is in parallel with speed limit coil (2050).

In Fig. 1, Fig. 2, car bottom plate (101) uses multi-layer sheet or plastic production, head is streamlined, afterbody semi-circular shape, edge is without corner angle, front is coarse anti-skidding, and under respective panels, the front and back of axletree (201) wheelspan are distinguished along the broadbands such as length inside and outside plate face painting different colours; Wrench to the longitudinal centre line of plate tail processes 3 locating holes, forward and backward vehicle bridge and sail coupling assembling are installed.

In Fig. 2, Fig. 3, vehicle bridge adopts by wheel shaft (201), bridge truss (204) and the Castor structure that turns to hub (300) 3 assembly to combine; The horizontal shaft hole (2042) of bridge truss and the platform (2010) of cutting in wheel shaft (201) stage casing are fixed together, and bridge truss flap guide (2040) is hinged with turning to hub hinge bodies (330) bearing pin (207); Flap guide superstructure has the goat's horn prominent (2041) of fixing meta steel spring plate (3302), inserts in hinge bodies inner chamber (3301), be attached thereto by meta steel spring plate during assembling; Difference≤the 30mm of pitch-row ground level in the horizontal shaft hole of bridge truss and flap guide.

In fig. 2, respectively there is the disk (2011) of a fixing U-shaped iron core of speed limit coil (205) at wheel shaft two ends near axle journal position, it can fix at most 3 iron-core coils; Wheel hub (2061) pair of horns contact bearing (202) is assemblied on axle journal, and tight with bearing cap (203) school; The corresponding U-shaped iron core position of speed limit coil, with the speed limit dish (2060) of wheel rim one, insert high strength permanent magnets (20600) on it.

In figure 3, turn to the convex cap of hub housing upper (310) to be bumped into car bottom plate locating hole and fix, bottom (311) form bearing outer ring; What form bearing inner race turns to the axle shelves (3201) hub turntable shaft (320) being processed with raceway in bilateral, race ring lid (313) and turn to raceway corresponding position in hub lower housing portion and axle shelves bilateral, is processed with the outer ring washer (3111,3131) of outer raceway respectively; Load steel ball (3202) between interior axle bumper, outer ring washer, then mount cover to fit over race ring and turn to hub lower housing portion, form a pair deep groove ball bearing.

Rear steering hub housing cavity, the reverse side of convex cap (310) is fixed with mandrel (312) vertically downward and 3 planet pins (314), mandrel is equipped with and swings to gear (340), planet pin is equipped with the planetary gear of 2 disjunctors, wherein one with turn to that hub turntable shaft (320) inner chamber internal gear engages, another with swing to gear and be meshed, like this, swinging to gear turns on the contrary relative to turntable shaft; Hinge bodies (330) is fixed on and swings on the terminal pad (3401) of gear one, and rear bridge truss (240) connects with hinge cooperation meta steel spring plate (3302) is active with it, drives hind axle to turn to; Back axle sprocket wheel (3203) is arranged on and turns to hub turntable shaft bottom.

Front steering hub turntable shaft (420) bottom is fixed with hinge bodies (430) in the diagram, hinge bodies is fixed with sprocket wheel (4303); Front steering hub turntable shaft and hinge bodies coordinate meta steel spring plate (4302) connecting bridge truss by hinge.

In Figure 5, in sail coupling assembling body (510) utilization, land (5100) and lower ring plate (5103) are fixed in car bottom plate locating hole, body upper part centre bore (5102) installs tapered endoporus, the high inclination-angle joint ball bearing (5105) of customization, speed-limiting switch step on the outer rim that ring (520) is sleeved on land, two perpendicular feather keys (5202) are assemblied in land guide groove (5101); Oblique angle is processed on push rod (5201) top stepped on ring, withstands in microswitch (5203) the inclined-plane touching (52030) of level installation in push-rod hole (5106) bottom of body; 4 pairs of contacts of 2 double-contact microswitches connect a power resistor respectively, during switch motion and a speed limit coils from parallel connection of coils cut on the U-shaped iron core in wheel speed-limitation dish magnetic field.

In Fig. 5, Fig. 6, the mast lower end (5104) of inserting sail coupling assembling joint ball bearing picks out one section of driving lever (51041), rod end is equipped with bulb (51042), and bulb top is pressed on boundary dish (61041); Boundary dish is Axisymmetric Spherical belt body, and lower section and push rod (6104) are connected as a single entity, and upper section is recessed curved surface (61040); During straight-line travelling, push rod boundary dish is depressed into lower limit by top, shift fork (6101) is stirred lower lock tube (620) up embedding and to be locked grip assembly (630), and be locked with the sprocket wheel (6303) of upper lock tube one, front and back turn to hub to be limited at meta; When mast gradient exceeds craspedodrome free inclination angle, driving lever bulb shifts out boundary dish, and push rod boundary dish is by return spring (6103) playback, and shift fork, lower lock tube fall after rise, and upper lock tube, sprocket wheel are released, and front and back turn to hub to enter turn state; Upper and lower end face (6302) is processed with the grip assembly of locking (630) of turning slot (63020), be assemblied in sail coupling assembling body (510) lower surface and drain pan (640) suitable for reading between, middle frame cover (610) is fixed on body lower part, and lower lock tube is assemblied on middle frame cover feather key (6100) through chute (6202); The mating surface of upper and lower lock tube is processed with can sliding bank pair (63010,6201) of sinusoidal line of contraposition voluntarily, push rod boundary dish in playback state, maximum rotation amount >=120 ° of grip assembly of locking, and ≯ 150 °.

In the embodiment shown in fig. 7,4.070m risen by mast (701), sail (700) area 3.04m ²; Forward and backward bridge (200) is apart from 1.37m, and sail coupling assembling (6000) is apart from front steering hub (400) 370mm; Car bottom plate (101) long 1.67m, wide 570mm, car bottom plate distance ground 196mm, wheel (206) external diameter 127mm, wheelspan 300mm; Car bottom plate and ground max. roll degree 22 °.

Claims

1. sail racing vehicle is made up of sail, car bottom plate, vehicle bridge, sail coupling assembling and integrated craspedodrome on it/turn to conversion equipment, speed-limiting switch, it is characterized in that: sail distance from top ground sail area spacing>=3* sail the mast of forward and backward vehicle bridge is to the spacing of center of air pressure point; Spacing+the 300mm of car bottom plate length>=forward and backward vehicle bridge; Car bottom plate width>=2* foot length+60mm; Vehicle bridge adopts by wheel shaft, bridge truss and the Castor structure that turns to hub 3 assembly to combine, and wheel is equipped with at wheel shaft two ends, turns to hub to coordinate meta steel spring plate mode to be connected with bridge truss hinge; Forward and backward vehicle bridge turns to hub and sail coupling assembling to be fixed on car bottom plate wrench on the longitudinal centre line of plate tail, sail coupling assembling turns between the mid point of line between hub to front steering hub forward and backward, and the mast position that particular location drops on 10cm scope before and after mid point corresponding by sail center of air pressure point vertical line is determined; Forward and backward vehicle bridge turns to hub sprocket wheel and craspedodrome/turn to conversion equipment sprocket wheel same chain to be connected; Rear axle turns to hub to be embedded in planet and swings to gear train; Car bottom plate is apart from ground car bottom plate and ground max. roll degree speed limit floor push steps on the outer rim that ring set is contained in land on sail coupling assembling, during switch motion, by speed limit resistance and speed limit coils from parallel connection of coils.

2. sail racing vehicle according to claim 1, it is characterized in that: described car bottom plate, with multi-layer sheet or plastic production, head is streamlined, afterbody semi-circular shape, edge is without corner angle, and front is coarse anti-skidding; Under respective panels, the front and back of axletree wheelspan are distinguished along the broadbands such as length inside and outside plate face painting different colours; Wrench to the longitudinal centre line of plate tail processes 3 locating holes, forward and backward vehicle bridge and sail coupling assembling are installed.

3. sail racing vehicle according to claim 1, is characterized in that: described bridge truss and wheel shaft, and the horizontal shaft hole of bridge truss and the platform of cutting in wheel shaft stage casing are fixed together; Bridge truss flap guide with turn to hub hinge bodies bearing pin to be hinged; Flap guide superstructure has the goat's horn of fixing meta steel spring plate to dash forward, and inserts in hinge bodies inner chamber, by the active connection with it of meta steel spring plate during assembling; Difference≤the 30mm of pitch-row ground level in the horizontal shaft hole of bridge truss and flap guide; Respectively there is the disk of a fixing U-shaped iron core of speed limit coil at wheel shaft two ends near axle journal position, it can fix at most 3 iron-core coils; The corresponding U-shaped iron core position of speed limit coil, with the speed limit dish of wheel rim one, insert high strength permanent magnets on it.

4. sail racing vehicle according to claim 1, is characterized in that: described turns to hub, and the convex cap of housing upper is bumped into car bottom plate locating hole and fixes, and bottom forms bearing outer ring; What form bearing inner race turns to axle shelves hub turntable shaft being processed with raceway in bilateral, race ring lid and turn to raceway corresponding position in hub lower housing portion and axle shelves bilateral, be processed with the outer ring washer of outer raceway respectively, steel ball is loaded between interior axle bumper, outer ring washer, mount cover to fit over race ring again and turn to hub lower housing portion, form a pair deep groove ball bearing; Front steering hub turntable shaft bottom is fixed with hinge bodies, and hinge bodies is fixed with sprocket wheel; Rear steering hub housing cavity embeds and swings to gear train, the reverse side of convex cap is fixed with mandrel vertically downward and 3 planet pins, mandrel is equipped with and swings to gear, planet pin has the planetary gear of 2 disjunctors, wherein one with turn to that hub turntable shaft inner chamber internal gear engages, another with swing to gear and be meshed; Rear steering hub hinge bodies is fixed on and swings on the terminal pad of gear one, and sprocket wheel is arranged on turntable shaft bottom.

5. sail racing vehicle according to claim 1, is characterized in that: described sail coupling assembling and integrated speed-limiting switch on it, and sail coupling assembling body utilizes upper land and lower ring plate to be fixed in car bottom plate locating hole; Body upper part centre bore installs tapered endoporus, the high inclination-angle joint ball bearing of customization; Speed-limiting switch step on the outer rim that ring set is contained in land, two perpendicular feather keys are assemblied in land guide groove; Oblique angle is processed on the push rod top stepped on ring, withstands in the microswitch inclined-plane touching of level installation in the push-rod hole bottom of body; 4 pairs of contacts of 2 double-contact microswitches connect a power resistor respectively, during switch motion and a speed limit coils from parallel connection of coils cut on the U-shaped iron core in wheel speed-limitation dish magnetic field.

6. sail racing vehicle according to claim 1, it is characterized in that: described sail coupling assembling and integrated craspedodrome on it/turn to conversion equipment, the mast lower end of inserting in the tapered endoporus of sail coupling assembling joint ball bearing picks out one section of driving lever, rod end is equipped with bulb, and bulb top is pressed on boundary dish; Boundary dish is Axisymmetric Spherical belt body, and lower section and push rod are connected as a single entity, and upper section is recessed curved surface; This curved surface is unified by central point and the joint ball bearing centre of sphere, radius equals the lower peripheral surface that the joint ball bearing centre of sphere draws to driving lever bulb centre of sphere distance, again by the maximum free inclination angle of mast allowed during straight-line travelling, the reverse extending line drawn from the joint ball bearing centre of sphere turns round 360 ° of cutting gained; Push rod actuating length≤driving lever Probe-radius+1/2 boundary dish is high; Upper and lower end face is processed with the grip assembly of locking of turning slot, be assemblied in sail coupling assembling body lower surface and drain pan suitable for reading between; Middle frame cover is fixed on body lower part, and lower lock tube is assemblied on middle frame cover feather key through chute; The mating surface of upper and lower lock tube be processed with can the sliding bank of sinusoidal line of contraposition voluntarily secondary; Boundary dish playback state, maximum rotation amount>=120 ° of grip assembly of locking, and

7. sail racing vehicle according to claim 1, is characterized in that: described chain, also can substitute with Timing Belt or gear train; When selecting Timing Belt, sprocket wheel changes synchronous pulley into; When selecting gear drive, comprise forward and backward vehicle bridge gear and craspedodrome/turn to the gear of conversion equipment gear to add up to even number, remove simultaneously and swing to gear train in rear steering hub, construct identical with front steering hub.