CN103474265B - Three, four-wheel motor cycle reverse gear assembly - Google Patents
Three, four-wheel motor cycle reverse gear assembly Download PDFInfo
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- CN103474265B CN103474265B CN201310401952.XA CN201310401952A CN103474265B CN 103474265 B CN103474265 B CN 103474265B CN 201310401952 A CN201310401952 A CN 201310401952A CN 103474265 B CN103474265 B CN 103474265B
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Abstract
The invention discloses one three, four-wheel motor cycle reverse gear assembly, comprise the reverse gear being provided with gearshift clutch tooth cover, shifting shaft, gearshift shifting part, reverse gear housing arranges contact-making switch, the shell of described contact-making switch is fixedly connected with the housing of reverse gear, and the push rod of contact-making switch stretches in the housing chamber of reverse gear; Gearshift shifting part is fixedly connected on shifting shaft, and one end of gearshift shifting part is shifting block, and shifting block inserts in the cannelure of gearshift clutch tooth cover circumference, and the other end of gearshift shifting part is provided with the cam contour for promoting push rod motion.The contact-making switch that housing is arranged can be connected with reversing voice prompting device, and take up room little, intensive degree is high, assembling process is very easy, cost-saving, and the push rod of contact-making switch inserts in the housing of reverse gear assembly, the pollution of the impurity such as muddy water can not be subject to, not fragile, longer service life.
Description
Technical field
The present invention relates to three, four-wheel motor cycle field, particularly a kind of three, four-wheel motor cycle reverse gear assembly.
Background technology
Existing three, four-wheel motor cycle does not arrange reversing voice prompting device usually, and when moveing backward, passerby not easily discovers, and easily occurs security incident.Also the user had, for reminding passerby, installs voice prompting device additional three, on four-wheel motor cycle, the switch of this voice prompting device installed additional need three, in four-wheel motor cycle driver's cabin the installation site of selector switch, the switch of existing voice prompting device mainly contains two kinds:
A kind of is the switch of the voice prompting device arranged separately, need to press switch prompting backing before user's reversing, the switch of this voice prompting device installed additional uses very inconvenient, if user forgets the switch pressing voice prompting device, voice prompting device would not send the sound, easily occurs security incident.
Also having a kind of is that the place of corresponding gear shift operation bar on vehicle frame installs switch fixed support additional, again the switch of voice prompting device is arranged on this support, switch and gear shift operation pole pair are answered, can when carrying out reversing gear operation, the switch of voice prompting device is opened by the action of gear shift operation bar, allow voice prompting device send the sound, remind passerby to note.But the switch of this voice prompting device installed additional, mounting structure is complicated, and outside switch is exposed to, easily by the pollution of muddy water, causes switching damage, affect the result of use of voice prompting device.And because prompting device switch installs additional in addition, installation process is also complicated, also can cause too much financial burden to user.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, one three, four-wheel motor cycle reverse gear assembly are provided, the contact-making switch that the housing of this reverse gear assembly is arranged can be connected with reversing voice prompting device, and take up room little, intensive degree is high, assembling process is very easy, cost-saving, the push rod of contact-making switch inserts in the housing of reverse gear assembly, can not by the pollution of the impurity such as muddy water, not fragile, longer service life.
The object of the present invention is achieved like this:
One three, four-wheel motor cycle reverse gear assembly, comprise the reverse gear being provided with driving gear, output shaft, forward gears, reverse gear, gearshift clutch tooth cover, shifting shaft, gearshift shifting part, the housing of this reverse gear is arranged a contact-making switch, the shell of described contact-making switch is fixedly connected with the housing of reverse gear, and the push rod of contact-making switch stretches in the housing chamber of reverse gear; Described gearshift shifting part is fixedly connected on shifting shaft, one end of gearshift shifting part is shifting block, this shifting block inserts in the cannelure of gearshift clutch tooth cover circumference setting, to move axially along output shaft and engage transferring power for stirring gearshift clutch tooth cover with forward gears or reverse gear, the other end of gearshift shifting part is provided with the cam contour for promoting push rod motion, it is corresponding that this cam contour and push rod stretch into the endoceliac one end of shell, opens contact-making switch for promoting push rod.
The shell inner cavity of described contact-making switch is provided with two isolated elastic contact blades, two elastic contact blades connect extraction wire respectively, one end of the push rod of contact-making switch is positioned at shell, this end arranges moving contact, gap, interval between corresponding two elastic contact blades of moving contact, form normally opened contact, on push rod, cover has back-moving spring, and the other end of push rod stretches in housing.
The shell inner cavity of described contact-making switch is stairstepping through hole, one contact mount pad is fixed in the stairstepping through hole of shell, one end of contact mount pad is positioned the hole shoulder of stairstepping through hole, the other end one jam is fixed, described contact mount pad is provided with endoporus, two elastic contact blade face-offs are located in the endoporus of contact mount pad, one end that described push rod arranges moving contact is arranged in the endoporus of contact mount pad, the back-moving spring that top stem casing has is positioned at the miner diameter end of stairstepping through hole, one end of back-moving spring is limited in the limited step that push rod is provided with, the other end is limited in contact mount pad, push rod stretches into the seam that the one end in housing is provided with from shell stairstepping through hole miner diameter end and stretches out.
Described contact mount pad comprises push rod guide part and contact fixed part, push rod guide part is provided with shoulder hole, miner diameter end and the push rod of this shoulder hole are slidably matched, two elastic contact blades are fixed on the both sides of contact fixed part, the tip side of two elastic contact blades inserts in the bigger diameter end of the shoulder hole of push rod guide part, contact fixed part is fixedly connected with push rod guide part, and push rod guide part and contact fixed part are insulating material and make.
The outer peripheral face of described contact fixed part is stairstepping, described contact fixed part bigger diameter end is arranged with radial open slot, the stiff end of two elastic contact blades is fixed in the radial opening groove that contact fixed part bigger diameter end is provided with, the stiff end of each elastic contact blade is connected with extraction wire one end, draw the wire other end to be connected with plug, the tip side of two elastic contact blades is circular arc contact, gap between two circular arc contacts is less than the external diameter of moving contact, the end face of contact fixed part miner diameter end is provided with wire holddown groove, one tension disc is fixed by screws in the end face of contact fixed part miner diameter end.
Described jam is rubber stopper, and jam one end is axially arranged with resigning hole, and other end excircle is provided with retaining ladder.
Described push rod comprises the plastic top body of rod and metallic carrier rod head, and metallic carrier rod head is fixedly connected on one end of the plastic top body of rod, and metallic carrier rod head stretches in housing through shell, the other end fixed installation moving contact of the plastic top body of rod.
Described shifting shaft is rotation axis, the axis of rotation axis and the axis of output shaft are spatial intersecting, the gearshift shifting part that described rotation axis is fixedly connected with is shifting block, the shifting block of this shifting block one end is sphenocephaly, this sphenocephaly inserts in the cannelure of gearshift clutch tooth cover circumference, the shifting block other end is the cam contour for promoting push rod motion, and the working position of this cam contour is below push rod.
One sidepiece of described shifting block is provided with two gear location notchs, the elastic ejector pin for locking gear that this sidepiece corresponding housing is arranged.
Described shifting shaft is the sliding axle of rectilinear motion, the axis of sliding axle and the axis being parallel of output shaft, the gearshift shifting part that described sliding axle is fixedly connected with is shift fork, the prong like of this shift fork one end is shifting block, this shifting block inserts in the cannelure of gearshift clutch tooth cover circumference, the shift fork other end is the cam contour for promoting push rod motion, and this profile is arc convex or wedge shape convex surface, and the height of arc convex or wedge shape convex surface is more than or equal to the stroke of push rod.
Owing to have employed such scheme, the housing of reverse gear directly arranges the contact-making switch of reversing voice prompting device, form the reverse gear assembly of contact-making switch reverse gear being provided with reversing voice prompting device, take up room little, intensive degree is high, when reversing voice prompting device being installed three, on four-wheel motor cycle, do not install other additional structure in addition additional, only need connect lead-out wire, assembling process is very easy, cost-saving, alleviate financial burden to user.The push rod of contact-making switch stretches in the housing chamber of reverse gear, can not by the pollution of the impurity such as muddy water, and not fragile, longer service life, ensures the result of use of voice prompting device.One end of gearshift shifting part is shifting block, the other end is provided with the cam contour for promoting push rod motion, it is corresponding that this cam contour and push rod stretch into the endoceliac one end of shell, gearshift shifting part stir gearshift clutch tooth cover along output shaft move axially engage transferring power with reverse gear time, cam contour promotes push rod, thus unlatching contact-making switch, gearshift shifting part stir gearshift clutch tooth cover along output shaft move axially engage transferring power with forward gears time, cam contour is away from push rod, contact-making switch push rod automatically resets, thus disconnects contact-making switch.
The shell of contact-making switch is fixed on housing, two elastic contact blades of shell inner cavity are spaced apart, one end of the push rod of contact-making switch is positioned at shell, this end arranges moving contact, gap, interval between corresponding two elastic contact blades of moving contact, form normally opened contact, two elastic contact blades connect extraction wire respectively, draw wire and connect reversing voice prompting device.Gearshift shifting part stir gearshift clutch tooth cover along output shaft move axially engage transferring power with reverse gear time, cam contour promotes push rod makes moving contact contact with two elastic contact blades, thus unlatching contact-making switch, and then start reversing voice prompting device, make passerby be easy to discover reversing, prevent security incident.Push rod overlaps the back-moving spring had, gearshift shifting part stir gearshift clutch tooth cover along output shaft move axially engage transferring power with forward gears time, cam contour is away from push rod, and push rod automatically resets under the effect of back-moving spring, disconnection contact-making switch.Contact-making switch is normally opened contact switch, makes the circuit of reversing voice prompting device more simple.
The shell inner cavity of contact-making switch is stairstepping through hole, is convenient to each parts axial location to shell inner cavity.Contact mount pad is fixed in the stairstepping through hole of shell, and one end is positioned the hole shoulder of stairstepping through hole, and the other end one jam is fixed, and forms axial location and the clamping of contact mount pad.Contact mount pad is provided with endoporus, and two elastic contact blade face-offs are located in the endoporus of contact mount pad, prevent two elastic contact blade active exposures.One end that push rod arranges moving contact is arranged in the endoporus of contact mount pad, and push rod stretches into the seam that the one end in housing is provided with from shell stairstepping through hole miner diameter end and stretches out, and forms the guiding to push rod, push rod can be slid axially.The back-moving spring that top stem casing has is positioned at the miner diameter end of stairstepping through hole, one end of back-moving spring is limited in the limited step that push rod is provided with, the other end is limited in contact mount pad, forms axial location and the clamping of back-moving spring, push rod can be automatically reset under the elastic force of back-moving spring.
Push rod guide part is provided with shoulder hole, miner diameter end and the push rod of this shoulder hole are slidably matched, two elastic contact blades are fixed on the both sides of contact fixed part, the tip side of two elastic contact blades inserts in the bigger diameter end of the shoulder hole of push rod guide part, contact fixed part is fixedly connected with to portion with push rod, when push rod moves axially, moving contact can contact with two elastic contact blades or depart from.Push rod guide part and contact fixed part are insulating material and make, and leak electricity when preventing elastic contact blade, moving contact from contacting.
The outer peripheral face of contact fixed part is stairstepping, described contact fixed part bigger diameter end is arranged with radial open slot, the stiff end of two elastic contact blades is fixed in the radial opening groove that contact fixed part bigger diameter end is provided with, and be connected with extraction wire respectively, the radial direction of paired two elastic contact blades of opening trough_like is spacing, prevents two elastic contact blades from swinging.The tip side of two elastic contact blades is circular arc contact, and the gap between the tip side of two elastic contact blades is less than the external diameter of moving contact, enables the moving contact on push rod and two elastic contact blade close contacts, loose contact when preventing from conducting electricity.The end face of contact fixed part miner diameter end is provided with wire holddown groove, and tension disc is fixed by screws in the end face of contact fixed part miner diameter end, forms the radial location of extraction wire, clamping, prevents drawing wire and departs from elastic contact blade.
Push rod has the plastic top body of rod, and moving contact is fixed on the plastic top body of rod, produces electric leakage when opening to prevent contact-making switch.Push rod has metallic carrier rod head, more wear-resisting, longer service life.
Jam is rubber stopper, and elastic force is good, makes jam can clamp contact mount pad, jam one end is provided with resigning hole, and for stepping down to conducting wire mounting seat, tension disc, extraction wire, other end excircle is provided with retaining ladder, retaining ladder coordinates with shell, is formed jam axial limiting.
When shifting shaft is rotation axis, the axis of rotation axis and the axis of output shaft are spatial intersecting, gearshift shifting part is driven to stir gearshift clutch tooth cover when shifting shaft rotates, the gearshift shifting part that rotation axis is fixedly connected with is shifting block, the shifting block of shifting block one end is sphenocephaly, its stressed effect is better, is not easy wearing and tearing.The working position of cam contour is positioned at below push rod, enables cam contour push push rod, opens contact-making switch.The sidepiece of shifting block is provided with two gear location notchs, housing is provided with the elastic ejector pin for locking gear, the sidepiece of the corresponding shifting block of this elastic ejector pin.When reverse gear is in forward gear, reverse gear, the tip of elastic ejector pin is inserted in two gear location notchs respectively, forms the location to gearshift shifting part.
When shifting shaft is the sliding axle of rectilinear motion, the axis of sliding axle and the axis being parallel of output shaft, drive shift fork to move when shifting shaft slides axially, shifting block stirs gearshift clutch tooth cover.The gearshift shifting part that sliding axle is fixedly connected with is shift fork, the prong like shifting block of shift fork one end stirs gearshift clutch tooth cover, contact area is large, stressed effect is good, profile for the cam contour promoting push rod motion is arc convex or wedge shape convex surface, the height of arc convex or wedge shape convex surface is more than or equal to the stroke of push rod, enables cam contour push push rod, opens contact-making switch.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is that schematic diagram is looked on a left side of Fig. 1;
Fig. 4 is the B-B cross-sectional schematic of Fig. 3;
Fig. 5 is the structural representation of contact-making switch;
Fig. 6 is reverse gear gearshift shifting part and contact-making switch when being in forward gear, elastic ejector pin coordinate schematic diagram;
Fig. 7 be reverse gear be in shift gears when reversing gear shifting part and contact-making switch, elastic ejector pin coordinate schematic diagram.
In accompanying drawing, 1 is driving gear, 2 is output shaft, 3 is forward gears, 4 is reverse gear, 5 is gearshift clutch tooth cover, 51 is cannelure, 6 is shifting shaft, 7 is gearshift shifting part, 7a is shifting block, 71 is shifting block, 71a is sphenocephaly, 72 is cam contour, 73 is gear location notch, 8 is housing, 9 is contact-making switch, 91 is shell, 911 is stairstepping through hole, 911a is seam, 92 is elastic contact blade, 93 for drawing wire, 94 is push rod, 941 is moving contact, 942 is the plastic top body of rod, 942a is limited step, 943 is metallic carrier rod head, 95 is back-moving spring, 96 is contact mount pad, 961 is endoporus, 961a is shoulder hole, 962 is push rod guide part, 963 is contact fixed part, 97 is jam, 971 is resigning hole, 972 is retaining ladder, 98 is tension disc, 10 is elastic ejector pin.
Embodiment
See Fig. 1 to Fig. 7, be three, a kind of embodiment of four-wheel motor cycle reverse gear assembly, comprise and be provided with driving gear 1, output shaft 2, forward gears 3, reverse gear 4, gearshift clutch tooth cover 5, shifting shaft 6, the reverse gear of gearshift shifting part 7, described forward gears, reverse gear is bevel gear, the gear end of two bevel gears in opposite directions and all empty set on output shaft, described gearshift clutch tooth cover is positioned at forward gears, between reverse gear, the endoporus of described gearshift clutch tooth cover is provided with the internal spline for engaging with output shaft, the outer peripheral face of gearshift clutch tooth cover is provided with the external tooth for engaging with the internal tooth of forward gears or reverse gear, the middle part of outer peripheral face is processed with the cannelure for coordinating with gearshift shifting part, gearshift clutch tooth cover is arranged on the spline segment of output shaft by internal spline cooperation, and can move axially and be engaged by the internal tooth that the external tooth at its both ends and the internal tooth of reverse gear or forward gears are provided with, transferring power.Described driving gear is bevel gear, and driving gear engages with forward gears, reverse gear simultaneously, transferring power.
The housing 8 of this reverse gear is arranged a contact-making switch 9, the shell 91 of described contact-making switch 9 is fixedly connected with the housing 8 of reverse gear, the push rod of contact-making switch stretches in the housing chamber of reverse gear, in the present embodiment, the outer peripheral face of shell is stairstepping, the miner diameter end threaded engagement of outer casing underpart is on housing, rubber seal is provided with between the shaft shoulder of shell and housing, prevent the oil leak in housing, be provided with packing ring between rubber seal and the shaft shoulder of shell, when preventing from turning shell, scratch rubber seal.Further, shell 91 inner chamber of described contact-making switch is provided with two isolated elastic contact blades, 92, two elastic contact blades 92 and connects respectively and draw wire 93, two and draw wire and be connected with reversing voice prompting device by joint, as the switch of voice prompting device of moveing backward.One end of the push rod 94 of contact-making switch is positioned at shell 91, this end arranges moving contact 941, gap, interval between corresponding two elastic contact blades 92 of moving contact 941, form normally opened contact, make the circuit of reversing voice prompting device more simple, certainly, corresponding two elastic contact blades of moving contact also can form normally-closed contact.On push rod 94, cover has back-moving spring 95, and the other end of push rod 94 stretches in housing 8.
Further, the shell inner cavity of described contact-making switch 9 is that stairstepping through hole 911, contact mount pad 96 is fixed in the stairstepping through hole 911 of shell 91, and one end of contact mount pad 96 is positioned the hole shoulder of stairstepping through hole 911, and the other end one jam 97 is fixed.In the present embodiment, jam is axially positioned on away from one end of contact mount pad the positioning spigot that stairstepping through hole bigger diameter end is provided with.Described contact mount pad 96 is provided with endoporus 961, two elastic contact blade 92 face-offs are located in the endoporus 961 of contact mount pad 96, one end that described push rod 94 arranges moving contact 941 is arranged in the endoporus 961 of contact mount pad 96, the back-moving spring 95 that push rod 94 overlaps to be had is positioned at the miner diameter end of stairstepping through hole 911, one end of back-moving spring 95 is limited in the limited step 942a that push rod 94 is provided with, the other end is limited in contact mount pad 96, and push rod 94 stretches into the seam 911a that the one end in housing 8 is provided with from shell 91 stairstepping through hole 911 miner diameter end and stretches out.
Described push rod 94 comprises the plastic top body of rod 942 and metallic carrier rod 943, and metallic carrier rod 943 is fixedly connected on one end of the plastic top body of rod 942, and metallic carrier rod 943 stretches in housing through shell, the other end fixed installation moving contact of the plastic top body of rod 942.In the present embodiment, the described plastic top body of rod and metallic carrier rod head are connected and fixed by injection moulding, one end that metallic carrier rod head stretches into housing is circular arc, with gearshift shifting part interaction process in not easy to wear, one end that metallic carrier rod head is connected with the injection moulding of the plastic top body of rod is provided with step, the plastic top body of rod for core injection mo(u)lding, makes metallic carrier rod caster bed rank be wrapped in completely in the plastic top body of rod with the step of metallic carrier rod head.Described limited step 942a be positioned at one end that the plastic top body of rod is connected with metallic carrier rod head and with the seam end contact of stairstepping through hole miner diameter end, form the axial location of push rod.Moving contact can be ring-type, can be also metallic rod shaped, and in the present embodiment, moving contact is copper ring, and moving contact is fixed by socket on the plastic top body of rod, and is locked by screw axial.Further, described jam 97 is rubber stopper, and jam 97 one end is axially arranged with resigning hole 971, and other end excircle is provided with retaining ladder 972.In the present embodiment, one end that jam contacts with contact mount pad is coniform, makes jam be easy to fill in shell, and the positioning spigot that retaining ladder is provided with stairstepping through hole bigger diameter end coordinates, and forms the axial location of jam.
Further, described contact mount pad 96 comprises push rod guide part 962 and contact fixed part 963, the endoporus 961 of contact mount pad 96 is the shoulder hole 961a that push rod guide part 962 is provided with, miner diameter end and the push rod 94 of this shoulder hole 961a are slidably matched, two elastic contact blades 92 are fixed on the both sides of contact fixed part 963, the tip side of two elastic contact blades 92 inserts in the bigger diameter end of the shoulder hole 961a of push rod guide part 962, contact fixed part 963 is fixedly connected with push rod guide part 962, in the present embodiment, the bigger diameter end of shoulder hole 961a is provided with inner stopper, contact fixed part inserts this inner stopper and forms interference fit.The hole shoulder of shoulder hole bigger diameter end is provided with for the flange spacing to elastic contact blade.The bit space that allows producing strain for elastic contact blade is left between the tip side of elastic contact blade and the hole wall of contact mount pad bigger diameter end.The tip side of two elastic contact blades is circular arc contact, and one end of corresponding two elastic contact blades of moving contact is coniform, makes the distortion of elastic contact blade more even, longer service life.Push rod guide part 962 and contact fixed part 963 are insulating material and make.This insulating material can be plastics, rubber, polymethyl methacrylate etc., and in the present embodiment, contact mount pad is made of plastics, and rigidity is high and anti-seismic performance good.Further, the outer peripheral face of described contact fixed part 963 is stairstepping, described contact fixed part 963 bigger diameter end is arranged with radial open slot, the stiff end of two elastic contact blades 92 is fixed in the radial opening groove that contact fixed part 963 bigger diameter end is provided with, certainly, described contact fixed part bigger diameter end also can be symmetrical arranged two axial installing holes, for fixing the stiff end of two elastic contact blades.The stiff end of each elastic contact blade is connected with extraction wire 93 one end, and draw wire 93 other end and be connected with plug, the gap between the tip side of two elastic contact blades 92 is less than the external diameter of moving contact 941, and contact fixed part bigger diameter end is fixedly connected with push rod guide part.The end face of contact fixed part 963 miner diameter end is provided with wire holddown groove, and a tension disc 98 is fixed by screws in the end face of contact fixed part 963 miner diameter end.In the present embodiment, this end face of contact fixed part miner diameter end is provided with two wire holddown grooves, and two draw wire is located in two wire holddown grooves respectively.Tension disc is fixed on conducting wire mounting seat by trip bolt, and two draw wires cross is arranged, and trip bolt is drawn between wire two, tightens trip bolt and namely fixes two extraction wires.
Described gearshift shifting part 7 is fixedly connected on shifting shaft 6, and in the present embodiment, gearshift shifting part is connected with gearshift axle key, and passes through screw lock.One end of gearshift shifting part 7 is shifting block 71, this shifting block 71 inserts gearshift clutch tooth and overlaps in the cannelure 51 of 5 circumference settings, to move axially along output shaft 2 and engage transferring power for stirring gearshift clutch tooth cover 5 with forward gears 3 or reverse gear 4, the other end of gearshift shifting part 7 is provided with the cam contour 72 moved for promoting push rod 94, one end that this cam contour 72 and push rod 94 stretch in housing 8 chamber is corresponding, moving contact 941 is contacted with two elastic contact blades 92 open contact-making switch 9 for promoting push rod 94.Further, described shifting shaft 6 is rotation axis, and the axis of rotation axis and the axis of output shaft 2 are spatial intersecting, in the present embodiment, the axis of rotation axis is mutually vertical with the axis of output shaft, and the two ends of shifting shaft are rotatably supported in housing, and one end of shifting shaft is extended housing and is connected with pedal.The gearshift shifting part 7 that described rotation axis is fixedly connected with is shifting block 7a, the shifting block 71 of this shifting block 7a one end is sphenocephaly 71a, this sphenocephaly 71a inserts gearshift clutch tooth and overlaps in the cannelure 51 of 5 circumference, and during normality, the face of shifting block and cannelure sidewall contact is parallel to cannelure sidewall.The shifting block other end is positioned at below push rod 94 for the working position of the cam contour 72 promoting push rod 94 motion, the distance of described cam contour working position and shifting shaft axial line is greater than the distance of this end inoperative position of shifting block and shifting shaft axial line, in the present embodiment, the distance of described cam contour working position and shifting shaft axial line is greater than 1.2 times of the distance of this end inoperative position of shifting block and shifting shaft axial line, makes cam contour be easy to push push rod.Further, a sidepiece of described shifting block 7a is provided with two gear location notchs 73, the elastic ejector pin 10 for locking gear that this sidepiece corresponding housing 8 is arranged.In the present embodiment, elastic ejector pin is snug fit at the installing hole be provided with in housing, one end of elastic ejector pin corresponding housing is provided with axial endoporus, the back-moving spring for making elastic ejector pin reset is provided with in the endoporus of elastic ejector pin, one end of the corresponding shifting block sidepiece of elastic ejector pin is taper, so that insert in gear location notch, between two gear location notchs, be provided with the convex arc be convenient to elastic ejector pin and slided.
When stepping on pedal, pedal drives shifting shaft to rotate, and shifting shaft drives shifting block, and the sphenocephaly of shifting block is swung around the axial line of shifting shaft, thus stirs the clutch tooth cover of shifting gears and move axially along output shaft and engage transferring power with forward gears or reverse gear.When shifting block stir gearshift clutch tooth cover depart from forward gears engage with reverse gear time, the gear location notch of reverse gear is slipped in the tip of elastic ejector pin from the gear location notch of forward gear along the convex arc between two gear location notchs, form the location of shifting block, make reverse gear keep reverse gear position; The cam contour of shifting block moves up, and the working position of cam contour promotes push rod and moves axially, and moving contact is contacted with two elastic contact blades and opens contact-making switch.Shifting block is stirred gearshift clutch tooth cover and is departed from reverse gear when engage with forward gears, and the gear location notch of forward gear is slipped in the tip of elastic ejector pin from the gear location notch of reverse gear along convex arc, the location of formation shifting block, makes reverse gear maintenance advance gear; The cam contour of shifting block moves down, and push rod automatically resets under the effect of back-moving spring, disconnects contact-making switch.
The present invention is not only confined to above-described embodiment, further, described shifting shaft 6 is the sliding axle of rectilinear motion, the axis of sliding axle and the axis being parallel of output shaft 2, the installing hole that the two ends of sliding axle and housing are provided with is slidably matched, and one end of shifting shaft is extended housing and is connected with gear-shifting inhaul cable.The gearshift shifting part 7 that described sliding axle is fixedly connected with is shift fork, the prong like of this shift fork one end is shifting block 71, this shifting block inserts gearshift clutch tooth and overlaps in the cannelure 51 of 5 circumference, this shift fork other end is the fork handle of shift fork, what fork handle end was provided with is arc convex or wedge shape convex surface for promoting the profile of the cam contour 72 that push rod 94 moves, and the height of arc convex or wedge shape convex surface is more than or equal to the stroke of push rod 94.
The present invention is not only confined to above-described embodiment, carries out the technical scheme of few modifications when not deviating from technical solution of the present invention spirit, should fall into protection scope of the present invention.
Claims (10)
1. one kind three, four-wheel motor cycle reverse gear assembly, comprise the reverse gear being provided with driving gear, output shaft, forward gears, reverse gear, gearshift clutch tooth cover, shifting shaft, gearshift shifting part, it is characterized in that: the housing of this reverse gear is arranged a contact-making switch, the shell of described contact-making switch is fixedly connected with the housing of reverse gear, and the push rod of contact-making switch stretches in the housing chamber of reverse gear; Described gearshift shifting part is fixedly connected on shifting shaft, one end of gearshift shifting part is shifting block, this shifting block inserts in the cannelure of gearshift clutch tooth cover circumference setting, to move axially along output shaft and engage transferring power for stirring gearshift clutch tooth cover with forward gears or reverse gear, the other end of gearshift shifting part is provided with the cam contour for promoting push rod motion, it is corresponding that this cam contour and push rod stretch into the endoceliac one end of shell, opens contact-making switch for promoting push rod.
2. according to claim 1 three, four-wheel motor cycle reverse gear assembly, it is characterized in that: the shell inner cavity of described contact-making switch is provided with two isolated elastic contact blades, two elastic contact blades connect extraction wire respectively, one end of the push rod of contact-making switch is positioned at shell, this end arranges moving contact, and the gap, interval between corresponding two elastic contact blades of moving contact, forms normally opened contact, on push rod, cover has back-moving spring, and the other end of push rod stretches in housing.
3. according to claim 1 and 2 three, four-wheel motor cycle reverse gear assembly, it is characterized in that: the shell inner cavity of described contact-making switch is stairstepping through hole, one contact mount pad is fixed in the stairstepping through hole of shell, one end of contact mount pad is positioned the hole shoulder of stairstepping through hole, the other end one jam is fixed, described contact mount pad is provided with endoporus, two elastic contact blade face-offs are located in the endoporus of contact mount pad, one end that described push rod arranges moving contact is arranged in the endoporus of contact mount pad, the back-moving spring that top stem casing has is positioned at the miner diameter end of stairstepping through hole, one end of back-moving spring is limited in the limited step that push rod is provided with, the other end is limited in contact mount pad, push rod stretches into the seam that the one end in housing is provided with from shell stairstepping through hole miner diameter end and stretches out.
4. according to claim 3 three, four-wheel motor cycle reverse gear assembly, it is characterized in that: described contact mount pad comprises push rod guide part and contact fixed part, push rod guide part is provided with shoulder hole, miner diameter end and the push rod of this shoulder hole are slidably matched, two elastic contact blades are fixed on the both sides of contact fixed part, the tip side of two elastic contact blades inserts in the bigger diameter end of the shoulder hole of push rod guide part, contact fixed part is fixedly connected with push rod guide part, and push rod guide part and contact fixed part are insulating material and make.
5. according to claim 4 three, four-wheel motor cycle reverse gear assembly, it is characterized in that: the outer peripheral face of described contact fixed part is stairstepping, described contact fixed part bigger diameter end is arranged with radial open slot, the stiff end of two elastic contact blades is fixed in the radial opening groove that contact fixed part bigger diameter end is provided with, the stiff end of each elastic contact blade is connected with extraction wire one end, draw the wire other end to be connected with plug, the tip side of two elastic contact blades is circular arc contact, gap between two circular arc contacts is less than the external diameter of moving contact, the end face of contact fixed part miner diameter end is provided with wire holddown groove, one tension disc is fixed by screws in the end face of contact fixed part miner diameter end.
6. according to claim 3 three, four-wheel motor cycle reverse gear assembly, is characterized in that: described jam is rubber stopper, and jam one end is axially arranged with resigning hole, and other end excircle is provided with retaining ladder.
7. according to claim 1 and 2 three, four-wheel motor cycle reverse gear assembly, it is characterized in that: described push rod comprises the plastic top body of rod and metallic carrier rod head, metallic carrier rod head is fixedly connected on one end of the plastic top body of rod, metallic carrier rod head stretches in housing through shell, the other end fixed installation moving contact of the plastic top body of rod.
8. according to claim 1 three, four-wheel motor cycle reverse gear assembly, it is characterized in that: described shifting shaft is rotation axis, the axis of rotation axis and the axis of output shaft are spatial intersecting, the gearshift shifting part that described rotation axis is fixedly connected with is shifting block, the shifting block of this shifting block one end is sphenocephaly, this sphenocephaly inserts in the cannelure of gearshift clutch tooth cover circumference, and the shifting block other end is the cam contour for promoting push rod motion, and the working position of this cam contour is below push rod.
9. according to claim 8 three, four-wheel motor cycle reverse gear assembly, is characterized in that: a sidepiece of described shifting block is provided with two gear location notchs, the elastic ejector pin for locking gear that this sidepiece corresponding housing is arranged.
10. according to claim 1 three, four-wheel motor cycle reverse gear assembly, it is characterized in that: described shifting shaft is the sliding axle of rectilinear motion, the axis of sliding axle and the axis being parallel of output shaft, the gearshift shifting part that described sliding axle is fixedly connected with is shift fork, the prong like of this shift fork one end is shifting block, this shifting block inserts in the cannelure of gearshift clutch tooth cover circumference, the shift fork other end is the cam contour for promoting push rod motion, this profile is arc convex or wedge shape convex surface, and the height of arc convex or wedge shape convex surface is more than or equal to the stroke of push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401952.XA CN103474265B (en) | 2013-09-06 | 2013-09-06 | Three, four-wheel motor cycle reverse gear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401952.XA CN103474265B (en) | 2013-09-06 | 2013-09-06 | Three, four-wheel motor cycle reverse gear assembly |
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| Publication Number | Publication Date |
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| CN103474265A CN103474265A (en) | 2013-12-25 |
| CN103474265B true CN103474265B (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310401952.XA Active CN103474265B (en) | 2013-09-06 | 2013-09-06 | Three, four-wheel motor cycle reverse gear assembly |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110230689B (en) * | 2018-03-06 | 2021-01-22 | 上海汽车集团股份有限公司 | Gear selecting and shifting device and gear shifting self-locking spring pin thereof |
Citations (6)
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|---|---|---|---|---|
| GB409557A (en) * | 1932-12-29 | 1934-05-03 | Charles James Evans | Improvements in connection with reversing, signalling and/or illuminating lamps for motor vehicles |
| DE4330917C1 (en) * | 1993-09-11 | 1995-02-16 | Merit Werk Merten & Co Kg | Switch for motor vehicles, in particular a reversing light switch and transmission switch or the like |
| DE19939189B4 (en) * | 1999-08-18 | 2009-01-29 | Adam Opel Ag | Switch, in particular reversing light switch for motor vehicles |
| CN202541777U (en) * | 2012-02-13 | 2012-11-21 | 彭浩毅 | Gear reversing unit of three-wheeled motorcycle or four-wheeled motorcycle |
| CN103256348A (en) * | 2013-03-05 | 2013-08-21 | 姜国清 | Motor tricycle, electric tricycle and reverse gear device |
| CN203503489U (en) * | 2013-09-06 | 2014-03-26 | 重庆富瑞机械制造有限公司 | Reverse gear device assembly of motorcycle |
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2013
- 2013-09-06 CN CN201310401952.XA patent/CN103474265B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB409557A (en) * | 1932-12-29 | 1934-05-03 | Charles James Evans | Improvements in connection with reversing, signalling and/or illuminating lamps for motor vehicles |
| DE4330917C1 (en) * | 1993-09-11 | 1995-02-16 | Merit Werk Merten & Co Kg | Switch for motor vehicles, in particular a reversing light switch and transmission switch or the like |
| DE19939189B4 (en) * | 1999-08-18 | 2009-01-29 | Adam Opel Ag | Switch, in particular reversing light switch for motor vehicles |
| CN202541777U (en) * | 2012-02-13 | 2012-11-21 | 彭浩毅 | Gear reversing unit of three-wheeled motorcycle or four-wheeled motorcycle |
| CN103256348A (en) * | 2013-03-05 | 2013-08-21 | 姜国清 | Motor tricycle, electric tricycle and reverse gear device |
| CN203503489U (en) * | 2013-09-06 | 2014-03-26 | 重庆富瑞机械制造有限公司 | Reverse gear device assembly of motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103474265A (en) | 2013-12-25 |
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Effective date of registration: 20180326 Address after: 402282 Chongqing City District Luohuang Jiangjin Zhen Guo Ba Cun Yu He Gou Anjufang District 2-7 building 3 Block Patentee after: Chongqing Furui Power Machinery Company Limited Address before: Eight town 400082 Dadukou District of Chongqing Minle village six Patentee before: Chongqing Furui Machine-building Co., Ltd. |