CN109854689A - Inner bearing type gearshift gearbox - Google Patents
Inner bearing type gearshift gearbox Download PDFInfo
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- CN109854689A CN109854689A CN201910094928.3A CN201910094928A CN109854689A CN 109854689 A CN109854689 A CN 109854689A CN 201910094928 A CN201910094928 A CN 201910094928A CN 109854689 A CN109854689 A CN 109854689A
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Abstract
The present invention relates to gearbox technical fields, and in particular to a kind of inner bearing type gearshift gearbox, including gearbox body, power input shaft and power output shaft and clutch;Shift output shaft one and shift output shaft two are installed in parallel in gearbox body, shift output shaft one and shift output shaft two respectively include solid-section and hollow section, it is set with diameter in solid-section to be sequentially increased or reduced fixed gear, diameter is set in hollow section and is sequentially increased or reduced rim gear wheel or fixed gear;Positioned at the diameter that is set on the outside of shift output shaft one be sequentially increased or reduceds rim gear wheel and fixed gear and output shaft two of shifting gears on the outside of the diameter that the is set with fixed gear and rim gear wheel that are sequentially reduced or increase be engaged to form transmission gear pair;One end of shift output shaft one is sequentially connected by clutch and the power input shaft;One end of shift output shaft two is connect by output gear with pto shaft drive;Shift control is easy to operate, realizes the speed change of more gear.
Description
Technical field
The present invention relates to gearbox technical fields, and in particular to a kind of inner bearing type gearshift gearbox.
Background technique
Currently, each producer is except the promotion to engine technology as standard requirements of the country to vehicle energy saving are increasingly harsh
Outside, it is also constantly exploiting potentialities in terms of gearbox.Wherein, it is to improve fuel economy by the gear increase to gearbox
One of mode generally taken.Either manual gear (MT) or automatic catch (AT) automobile, gearbox advance from 3-6 originally
Gear is gradually increased to 7-10 forward gear.With the increase of gear, gearbox volume, weight are also increasing, and cause each automobile
Equalization point is struggle with found in energy saving, loss of weight contradiction by producer.Especially transverse engine, since space is extremely limited,
The gearbox of multi gear position can not adapt to meet demand.Although Honda Company has been developed that the 10AT speed change that can be used for transverse engine
Case, axial length are reduced, but its construction is more complicated, and the problem that volume is big, weight is big does not obtain still well
Improve.
Summary of the invention
For defect existing for existing gearbox and problem, the present invention provides a kind of inner bearing type gearshift gearbox.
The present invention solves scheme used by its technical problem: a kind of inner bearing type gearshift gearbox, including speed change
Cabinet, power input shaft and power output shaft and clutch;Shift output shaft one is installed in parallel in gearbox body and is changed
Output shaft two is kept off, the shift output shaft one and shift output shaft two respectively include solid-section and hollow section, be set in solid-section
There is diameter to be sequentially increased or reduced fixed gear, diameter is set in hollow section and is sequentially increased or reduced rim gear wheel or fixed tooth
Wheel;The diameter that is set with is sequentially increased or reduceds rim gear wheel and fixed gear and output shaft two of shifting gears on the outside of shift output shaft one
The fixed gear and rim gear wheel that the diameter of outside suit is sequentially reduced or increases are engaged to form transmission gear pair;Shift output shaft
One one end is sequentially connected by clutch and the power input shaft;One end of shift output shaft two is by output gear and moves
Power output shaft transmission connection;On the internal chamber wall of the hollow section of shift output shaft one and the installation rim gear wheel for output shaft two of shifting gears,
It is uniformly distributed along the circumference and offers the tooth block sliding slot of T-type, each tooth block sliding slot includes the limit shoulder of centre bore He its two sides, and each tooth block is sliding
The diameter that matching is set with T-type in slot pushes away tooth block of putting into gear, and each diameter pushes away the inner end setting extrusome for tooth block of putting into gear, outer end be provided with to
The centre bore is inserted into the tooth shoulder of two sides protrusion, extrusome matching, and tooth shoulder outer surface distinguishes with teeth section;The transmission gear is ring
Gear, the tooth of outer rim distribution are outer ring tooth, and the tooth of inner rim distribution is inner circular tooth, and is located at inner circular tooth two sides and is respectively arranged with
Bearing holder (housing, cover) is simultaneously equipped with spring bearing, and the shift output shaft one and shift output shaft two are mounted in the spring bearing;Institute
It states and is respectively installed with axis shifting block in the inner cavity of shift output shaft one and output shaft two of shifting gears, axis is moved on the outside of block and constituted after bearing set
Axis moves shift carriage, and when axis shifting shift carriage is moved to transmission gear position, bearing outer ring is supported on the diameter and pushes away tooth of putting into gear
The extrusome inner end of block, while radially pushing each diameter to push away tooth block of putting into gear and being displaced outwardly, tooth block is put into gear radially when the diameter pushes away
After sliding in and out, inner ring tooth engagement described in the tooth Duan Nengyu positioned at tooth shoulder surface;In the two sides of the tooth block sliding slot of the T-type
It has spring mounting groove and positioning column is set, the both ends of return spring are separately connected corresponding positioning column, return spring
Middle part be articulated in diameter push away tooth block of putting into gear extrusome surface setting move back on bumping post.
A kind of inner bearing type gearshift gearbox, including gearbox body, power input shaft and power output shaft and clutch
Device;Shift output shaft one and shift output shaft two are installed in parallel in gearbox body, the shift output shaft one and shift are defeated
Shaft two respectively includes solid-section and hollow section, and diameter is set in solid-section and is sequentially increased or reduced fixed gear, hollow section
On be set with diameter and be sequentially increased or reduced rim gear wheel or fixed gear;The diameter being set on the outside of shift output shaft one is successively
The fixed gear that the diameter being set on the outside of the rim gear wheel and fixed gear and shift output shaft two increased or reduced is sequentially reduced or increases
And rim gear wheel is engaged to form transmission gear pair;One end of shift output shaft one is passed by clutch and the power input shaft
Dynamic connection;One end of shift output shaft two is connect by output gear with pto shaft drive;
The external annulus of the rim gear wheel is provided with outer ring tooth, internal ring wall is provided with inner circular tooth;Center is provided in the hollow section
Cavity and tooth block sliding slot is uniformly provided with along annular on the shaft part, the notch of tooth block sliding slot blocked by the inner circular tooth of rim gear wheel,
Slot bottom and center cavity penetrate through, and tooth block sliding slot inner wall is provided with limit shoulder, are installed with diameter at limit shoulder and push away tooth block of putting into gear, institute
The inner face stretching slot bottom that diameter pushes away tooth block of putting into gear is stated, the outer end face that diameter pushes away tooth block of putting into gear is provided with can be with the inner circular tooth of rim gear wheel
Intermeshing tooth of putting into gear;Shift carriage can be moved along the axis that axis moves axially by being provided in the center cavity, and the axis shifting is changed
Gear sliding block, which is moved at tooth block of putting into gear, can push away the diameter extension that tooth block of putting into gear ejects outward and diameter is made to push away tooth block outer end face of putting into gear
The inner ring tooth engagement for keeping off tooth and rim gear wheel realizes transmission.
Further, the transmission gear to include the different accelerating gear of transmission ratio to and reduction gearing pair, wherein one
Reverse gear is provided with to centre to reduction gearing.
Further, the inner circular tooth is set to the center of rim gear wheel internal ring wall, and spring bearing is symmetrically arranged on interior
The arranged on left and right sides of ring tooth, rim gear wheel are set in the hollow section by spring bearing.
Further, the slot bottom of the tooth block sliding slot is provided with the centre bore with center cavity perforation, and the diameter, which pushes away, puts into gear
Tooth block includes tooth shoulder and extrusome, and the tooth shoulder is installed at limit shoulder, and tooth of putting into gear is set to tooth shoulder outer end face, described flexible
Body is set in centre bore, extrusome with a thickness of a, the depth of centre bore is b, wherein a > b, and the extrusome is towards center sky
Raised cambered surface centered on the end face of chamber.
Further, it states and is symmetrically provided with spring mounting groove on the cell wall of tooth block sliding slot, positioning is provided in spring mounting groove
Column is fixedly installed with return spring by two positioning columns, is provided on the extrusome and moves back bumping post, the middle part of return spring with
Bumping post connection is moved back, the return spring is capable of providing the diameter that will be ejected outward and pushes away the elastic force that tooth block of putting into gear inwardly is sprung back.
Further, the axis moves on shift carriage and is set with sliding bearing, and the outer ring of the sliding bearing can be with diameter
The extrusome for pushing away tooth block of putting into gear contacts and ejects extrusome outward.
Further, it is provided with inner bearing in the center cavity, interior axle bed is installed in inner bearing, along axis on interior axle bed
To two opposite screw rods of hand of spiral are equipped with, screw rod outer end stretches out center cavity and is installed on gearbox body by side axis seat
On, it is respectively installed with intermeshing synchromesh gear on screw rod, the axis moves shift carriage thread set on two screw rods, described
Screw drive motor is provided in gearbox body, the output pulley of screw drive motor passes through belt and a wherein screw rod end
Pulley drive connection.
Further, it is provided with inner bearing in the center cavity, interior axle bed is installed in inner bearing, along axis on interior axle bed
To being equipped with screw rod, locating shaft, screw rod, locating shaft outer end stretch out center cavity respectively and gearbox be installed on by side axis seat
On body, the axis moves shift carriage and is set in screw rod jointly, on locating shaft, and screw drive electricity is provided in the gearbox body
The output pulley of machine, screw drive motor is connect by belt with the pulley drive of screw rod end.
Further, the clutch be multidisc clutch, the clutch include with power input shaft one from
Clutch shell, with the clutch inner casing of shift output shaft one and the be overlapped friction plate arranged in a crossed manner of multiple groups, tabletting, it is described from
Annular housing is formed between clutch shell, clutch inner casing, the friction plate, tabletting are set on clutch inner casing and are set to
In annular housing, tabletting is connect with clutch outer member, and friction plate is connect with clutch inner casing, is also set up in the clutch outer member
There is clutch plunger, clutch plunger is connected to clutch working oil chamber and then clutch plunger is driven to push and compresses tabletting, rubs
Pad realizes transmission, is also movably installed with piston return diaphragm type spring, the piston return diaphragm on the clutch inner casing
The formula spring other end is connect with clutch plunger.
Beneficial effects of the present invention: inner bearing type gearshift gearbox of the invention, overall structure are simple;Volume is smaller,
Weight is lighter, by completely new gearshift, reduces the meshing gear on jackshaft and jackshaft;Reduce each gear teeth
The components such as intermediate gear, synchronizer gear seat, the synchronizer of wheel, volume and weight have apparent reduction and decline;And the shift
It controls easy to operate, realizes the speed change of more gear, and gearbox axial length can be equal to current newest 10AT phase
Beauty meets transverse engine layout requirements.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is partial assembled schematic diagram of the invention;
Fig. 3 is that diameter pushes away the upper gear status diagram that tooth block of putting into gear is engaged with rim gear wheel;
Fig. 4 be diameter push away that tooth block of putting into gear separates with rim gear wheel move back gear status diagram;
Fig. 5 is the structural schematic diagram that shift output shaft one and diameter push away tooth block of putting into gear;
Fig. 6 is the structural schematic diagram of rim gear wheel;
Fig. 7 be Fig. 6 in along the sectional view of A-A;
Fig. 8 is the drive connection schematic diagram for the state of reversing gear;
Fig. 9 is the drive connection schematic diagram of a gear state;
Figure 10 is the drive connection schematic diagram of six gear states;
In figure: 1- gearbox body, 2- power input shaft, 31- shift output shaft one, 32- shift output shaft two, 301- solid-section,
302- hollow section, 4- clutch, 401- clutch outer member, 402- clutch inner casing, 403- annular housing, 404- friction plate,
405- tabletting, 406- clutch plunger, 407- piston return diaphragm type spring, 5- rim gear wheel, 501- outer ring tooth, 502- inner ring
Tooth, 503- spring bearing, 6- center cavity, 7- screw rod, axle bed in 701-, 702- side axis seat, 703- inner bearing, 8- axis move shift
Sliding block, 801- sliding bearing, 9- screw drive motor, 10- tooth block sliding slot, 1001- limit shoulder, 1002- centre bore, 12- diameter
Push away tooth block of putting into gear, 1201- tooth shoulder, 1202- extrusome, 1203- puts into gear tooth, 13- spring mounting groove, 14- positioning column, and 15- moves back gear
Column, 16- return spring, 17- output gear, 18- reverse gear, 19- synchromesh gear, 20- fixed gear.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1: a kind of inner bearing type gearshift gearbox, as Figure 1-10 shows, including the input of gearbox body 1, power
Axis 2 and clutch are equipped with shift output shaft 1, shift output shaft 2 32, output shaft of shifting gears in parallel in gearbox body
One 31, shift output shaft 2 32 respectively includes solid-section and hollow section, and diameter is set in solid-section and is sequentially increased or reduces
Fixed gear is set with diameter in hollow section and is sequentially increased or reduced rim gear wheel 5 or fixed gear 20;Positioned at shift output shaft 1
The diameter of outside suit is sequentially increased or the diameter of 2 32 outside suit of reduced rim gear wheel 5 and fixed gear 20 and shift output shaft
The fixed gear 20 and rim gear wheel 5 for being sequentially reduced or increasing are engaged to form transmission gear pair;The outer end of power input shaft 2 and drive
Dynamic device connection, driving device are internal combustion engine etc., and the other end of power input shaft 2 is set in 1 body of gearbox and passes through clutch
Device 4 is connect with shift output shaft 1, and the end of shift output shaft 2 32 is connected by output gear 17 and pto shaft drive
It connects;Power after the gear shift on shift output shaft 1, shift output shaft 2 32 is exported outward;Transmission gear
To include the different accelerating gear of transmission ratio to and reduction gearing pair, one pair of them reduction gearing the tooth that reverses gear is provided with to centre
Wheel;In the present embodiment, transmission gear to altogether include the different accelerating gear of ten a pair of of transmission ratios to and reduction gearing pair, wherein the
A pair of of reduction gearing is provided with reverse gear 18 to centre, and reverse gear 18 and two gears of the reduction gearing centering are nibbled respectively
The rotation direction formation that conjunction changes its output gear is reversed gear;The fixed gear 20 in solid-section 301 is installed on shift output shaft one
31 or shift output shaft 2 32 rotate, rim gear wheel 5 is installed in hollow section 302 by spring bearing 503, not with shift output shaft
1 or shift output shaft 2 32 rotate, the external annulus of rim gear wheel 5 is provided with outer ring tooth 501, internal ring wall is provided with inner circular tooth
502, and inner circular tooth 502 is set to the center of rim gear wheel internal ring wall, and spring bearing 503 is symmetrically arranged on inner circular tooth
Arranged on left and right sides;When only pushing away the tooth 1203 of putting into gear of tooth block 12 of putting into gear when the inner circular tooth 502 of rim gear wheel 5 with diameter and being engaged, hollow section
Corresponding rim gear wheel 5 just can rotate on 302;
On output shaft 1 of shifting gears, the internal chamber wall for shifting gears output shaft 2 32, it is uniformly distributed along the circumference and offers the tooth block sliding slot of T-type
10, Fig. 4 can be seen that the limit shoulder 1001 that each tooth block sliding slot 10 includes centre bore 1002 and its two sides, each tooth block sliding slot 10
The diameter that interior matching is set with T-type pushes away tooth block 12 of putting into gear.Wherein, each diameter pushes away the inner end setting extrusome 1202 for tooth block 12 of putting into gear,
Outer end is provided with the tooth shoulder 1201 protruded to two sides, and the centre bore 1002,1201 appearance of tooth shoulder are inserted into the matching of extrusome 1202
Distinguish with teeth section in face.
Axis is set in output shaft 1 of shifting gears, the inner cavity for shifting gears output shaft 2 32 and moves block, as shown in Figure 5 and Figure 6, together
When, axis is constituted after axis moves on the outside of block and is set with sliding bearing and moves shift carriage 8, is moved to as shown in Figure 5 when axis moves shift carriage 8
When transmission gear position, bearing outer ring is supported on 1202 inner end of extrusome that the diameter pushes away tooth block 12 of putting into gear, while radially
It pushes each diameter to push away tooth block 12 of putting into gear to be displaced outwardly.After the diameter, which pushes away tooth block 12 of putting into gear, radially to be slided, it is located at the tooth
Inner circular tooth 502 described in the tooth Duan Nengyu on 1201 surface of shoulder engagement, thus make corresponding transmission gear with shift gears output shaft 1, change
Gear output shaft 2 32 is linked together, and shift output shaft 1, the shift rotation of output shaft 2 32 are able to drive transmission gear rotation,
Same transmission gear rotation is able to drive transmission gear rotation.
It is pushed away to enable each diameter to push away tooth block 12 of putting into gear and contract, it is also necessary to have bullet in the two sides of the tooth block sliding slot 10 of T-type
Simultaneously positioning column 14 is arranged in spring mounting groove 13, as shown in figure 4, the both ends of return spring 16 are separately connected corresponding positioning column 14, returns
Position spring 16 middle part be articulated in diameter push away tooth block 12 of putting into gear 1202 surface of extrusome setting move back on bumping post 15.
When axis, which moves shift carriage 8, is detached from transmission gear position as shown in Figure 6, axis moves shift carriage 8 and no longer contacts each diameter
Tooth block 12 of putting into gear is pushed away, the tooth section positioned at 1201 surface of tooth shoulder can be detached from inner circular tooth 502.Each diameter pushes away tooth block 12 of putting into gear in return spring
16 act on lower difference slides contraction radially inward, and the tooth section on 1201 surface of tooth shoulder can be engaged no longer with inner circular tooth 502.To make
Shift output shaft 1, shift output shaft 2 32 and corresponding transmission gear are in disengaged position.
Drive shaft moves the mode multiplicity of shift carriage 8 axially movable, such as can move block upper, middle and lower in axis and screw hole is arranged
And installation and adjustment screw rod, axis moves on block to be arranged pilot hole and installs guide rod respectively simultaneously.Or it is moved in axis and two is arranged on block
Parallel screw hole and difference installation and adjustment screw rod, the end of two adjusting screw rods is connected by synchronous gear transport, wherein a tune
It saves screw rod and machine shaft is sequentially connected.
Embodiment 2: a kind of inner bearing type gearshift gearbox, as Figure 1-10 shows, including the input of gearbox body 1, power
Axis 2 and clutch are equipped with shift output shaft 1, shift output shaft 2 32, output shaft of shifting gears in parallel in gearbox body
One 31, shift output shaft 2 32 respectively includes solid-section and hollow section, and diameter is set in solid-section and is sequentially increased or reduces
Fixed gear is set with diameter in hollow section and is sequentially increased or reduced rim gear wheel 5 or fixed gear 20;Positioned at shift output shaft 1
The diameter of outside suit is sequentially increased or the diameter of 2 32 outside suit of reduced rim gear wheel 5 and fixed gear 20 and shift output shaft
The fixed gear 20 and rim gear wheel 5 for being sequentially reduced or increasing are engaged to form transmission gear pair;The outer end of power input shaft 2 and drive
Dynamic device connection, driving device are internal combustion engine etc., and the other end of power input shaft 2 is set in 1 body of gearbox and passes through clutch
Device 4 is connect with shift output shaft 1, and the end of shift output shaft 2 32 is connected by output gear 17 and pto shaft drive
It connects;Power after the gear shift on shift output shaft 1, shift output shaft 2 32 is exported outward;Wherein, from
Clutch 4 is multidisc clutch, and clutch includes that clutch outer member 401, clutch inner casing 402 and multiple groups overlapping are arranged in a crossed manner
Friction plate 404, tabletting 405, clutch outer member 401 and power input shaft 2 be integrally formed, and clutch inner casing 402 and shift are defeated
Shaft 1 is integrally formed, and annular housing 403, friction plate are formed between clutch outer member 401, clutch inner casing 402
404, during tabletting 405 intersects the annular housing 403 that overlapping is set in outside clutch inner casing, tabletting nesting is installed on clutch
On shell, friction plate nesting is installed on clutch inner casing, and clutch plunger 406, clutch are also equipped in clutch outer member 401
Device piston 406, which is connected to clutch working oil chamber and then clutch plunger 406 is driven to push, compresses tabletting 405 and friction plate 404,
By frictional force biggish between tabletting and friction plate, friction plate and tabletting Synchronous Transmission are realized, and then by power input shaft
Power passes to shift output shaft 1;Side on clutch inner casing 402 close to clutch plunger is additionally provided with annular groove, annular groove
In be movably set with piston return diaphragm type spring 407,407 other end of piston return diaphragm type spring and clutch plunger 406
Connection, when effect is shift when pressure release, clutch plunger 406 can be pushed back release tabletting by piston return diaphragm type spring 407,
And then it cuts off power and carries out gear switch;Transmission gear to include the different accelerating gear of transmission ratio to and reduction gearing pair,
Middle a pair of reduction gearing is provided with reverse gear to centre;In the present embodiment, transmission gear to include altogether ten a pair of of transmission ratios not
With accelerating gear to and reduction gearing pair, wherein first pair of reduction gearing is provided with reverse gear 18, reverse gear to centre
18 with two gears of the reduction gearing centering respectively engage change its output gear rotation direction formation reverse gear;It is installed on reality
Fixed gear 20 in heart section 301 is rotated with shift output shaft 1 or shift output shaft 2 32, and rim gear wheel 5 passes through spring bearing
It 503 is installed in hollow section 302, do not rotate with shift output shaft 1 or shift output shaft 2 32, the external annulus of rim gear wheel 5 is set
Be equipped with outer ring tooth 501, internal ring wall is provided with inner circular tooth 502, and inner circular tooth 502 is set to the centre bit of rim gear wheel internal ring wall
It sets, spring bearing 503 is symmetrically arranged on the arranged on left and right sides of inner circular tooth;Only put into gear when the inner circular tooth 502 of rim gear wheel 5 is pushed away with diameter
When the tooth 1203 of putting into gear of tooth block 12 is engaged, corresponding rim gear wheel 5 just be can rotate in hollow section 302;In being provided in hollow section 302
Heart cavity 6 is evenly distributed with the tooth block sliding slot 10 that slot bottom and center cavity 6 penetrate through, tooth block sliding slot along annular in hollow section 302
10 respectively correspond positioned at the inside of each rim gear wheel 5, so the notch for four tooth block sliding slots 10 being located on the inside of same rim gear wheel
It is blocked jointly by the inner wall of same rim gear wheel 5,10 inner wall of tooth block sliding slot is provided with limit shoulder 11, limits and is installed with diameter at shoulder
Tooth block 12 of putting into gear is pushed away, the slot bottom of tooth block sliding slot 10 is provided with the centre bore 1002 penetrated through with center cavity 6, and diameter pushes away tooth block 12 of putting into gear
Inner face slot bottom is stretched out by centre bore 1002, guarantee that it can be ejected outward, wherein it includes outer that diameter, which pushes away tooth block 12 of putting into gear,
The tooth shoulder 1201 at end and the extrusome 1202 of inner end, tooth shoulder 1201 and the limit rectangular face of shoulder 1001 clamp, and make to limit shoulder
Diameter is stopped to push away tooth block 12 of putting into gear mobile to center cavity, simultaneously because the notch of tooth block sliding slot 10 is blocked by the inner wall of rim gear wheel 5,
Ensure that diameter pushes away tooth block 12 of putting into gear and will not fall off from tooth block sliding slot 10, the outer end face of tooth shoulder 1201 is equipped with tooth 1203 of putting into gear,
Tooth 1203 of putting into gear can be engaged with inner circular tooth 502, and extrusome 1202 is set in centre bore 1002, extrusome 1202 with a thickness of
A, the depth of centre bore 1002 are b, wherein a > b, guarantee that the lower end surface of extrusome 1202 passes through centre bore 1002 and extends to center
In cavity 6, and extrusome 1202 moves 8 axis of shift carriage towards raised cambered surface centered on the end face of center cavity convenient for axis
It is ejected to diameter can smoothly be pushed away to tooth block 12 of putting into gear when movement;It is symmetrically provided with spring mounting groove 13 on the cell wall of tooth block sliding slot 10,
It is provided with positioning column 14 in spring mounting groove, is fixedly installed with return spring 16 by two positioning columns, is set on extrusome 1202
It is equipped with and moves back bumping post 15, the middle part of return spring 16 is connect with bumping post 15 is moved back, and when putting into gear, extrusome 1202 ejects outward, moves back shelves
Column 15 drives return spring to be bent outwardly together, and return spring 16 is capable of providing the diameter that will be ejected outward, and to push away tooth block 12 of putting into gear inside
The elastic force of rebound, after shift, the diameter put into gear originally, which pushes away tooth block 12 of putting into gear, to be returned to original by corresponding return spring 16
The position (diameter pushes away the location status that the tooth of putting into gear for tooth block 12 of putting into gear is separated with the inner circular tooth of rim gear wheel 15) come, and return at this time
16 linear state of recoil of spring, return spring diameter at this time, which pushes away tooth block of putting into gear, does not have elastic force;In the present embodiment, center cavity
It is inside provided with inner bearing 703, interior axle bed 701 is installed in inner bearing 703, edge is axially installed with two screw threads on interior axle bed 701
Contrary screw rod 7, thread bush moves shift carriage 8 equipped with axis on screw rod 7, and 7 outer end of screw rod stretches out center cavity 6 and simultaneously passes through side
Axle bed 702 is installed on gearbox body, wherein belt pulley is installed in the end of a screw rod 7, and passes through belt and screw drive electricity
The output pulley of the power output end of machine 9 is sequentially connected, and screw drive motor 9 drives a wherein screw rod rotation, two screw rods
On be respectively installed with intermeshing synchromesh gear 19, rotated synchronously so that two synchromesh gears 19 can control two screw rods 7,
And the hand of spiral of two screw rods 7 is on the contrary, axis shifting shift carriage 8 can move in the same direction on screw rod 7 in turn, to control
Axis processed moves the position on screw rod of shift carriage 8, pushes away at tooth block 12 of putting into gear, can incite somebody to action when axis shifting shift carriage 8 is moved to certain diameter
The diameter pushes away put into gear tooth 1203 and 5 inner wall of rim gear wheel that tooth block 12 of putting into gear ejects outward and the diameter is made to push away 12 outer rim of tooth block of putting into gear
Inner circular tooth 502 engages, and then by the transmission gear corresponding to the rim gear wheel 5 with a stable drive ratio to realization engaged transmission.
Working principle:
As shown in fig. 6, the operation schematic diagram as shown in the figure for state of reversing gear, clutch 4 combine, power is passed through power input shaft 2
The fixed gear 20 that reverses gear being handed to above shift output shaft 1, then it is transferred to reverse gear 18, moving shift carriage 8 by axis at this time will
Diameter pushes away the ejection of tooth block 12 of putting into gear, so that reverse gear 18 is engaged with the rim gear wheel 5 that reverses gear, while diameter pushes away the tooth of putting into gear for tooth block 12 of putting into gear
It is engaged with the inner circular tooth 502 of the corresponding rim gear wheel 5 that reverses gear, and then power is transferred on shift output shaft 2 32, it finally will shift
The power of output shaft 2 32 is transferred to the output that power is realized on output gear 17.
As shown in fig. 7, being as shown in the figure a gear state, clutch 4 combines, and power is transferred to shift through power input shaft 2
A gear fixed gear 20 on output shaft 1, pushes away tooth block 12 of putting into gear for diameter by axis shifting shift carriage 8 at this time and ejects, so that upper end
One gear fixed gear is engaged with a baffle ring gear of lower end, while diameter pushes away put into gear tooth and the corresponding baffle ring gear for tooth block 12 of putting into gear
5 inner circular tooth 502 engages, so that power is transferred on shift output shaft 2 32, finally passes the power for output shaft 2 32 of shifting gears
It is handed to the output that power is realized on output gear 17.
From reverse gear, one grade up to five grades, the switching of gear moves shift carriage 8 successively by the axis in shift output shaft 2 32
Mobile to carry out reverse gear switching and upshift, the position for the shift bearing slider shifted gears on output shaft 1 is stationary.
When rising up into six grades, the axis in output shaft 2 32 of shifting gears moves shift carriage 8, and to be disengaged to vacancy stationary, start by
Axis on shift output shaft 1 moves shift carriage 8, and gradually movement continues to upshift, until highest gear is risen to, so that engine work
Make to be in optimal economic state.As shown in figure 8, being as shown in the figure six gear states, working principle is similar with an above-mentioned gear, no longer superfluous
It states.
Embodiment 3: the inner bearing type gearshift gearbox of the present embodiment carries out centered on the difference of embodiment 2
Explanation;
In the present embodiment, it is provided with inner bearing 703 in center cavity 6, interior axle bed 701 is installed in inner bearing, on interior axle bed 701
Along screw rod 7 and locating shaft (position where second screw rod originally) is axially installed with, axis moves shift carriage 8 and is set in jointly
On screw rod 7, locating shaft, locating shaft, screw rod 7 one end pass through interior axle bed 701 respectively and be installed on shift 3 inner wall of output shaft, be another
One end is installed on gearbox body by side axis seat 702, and the end of screw rod 7 is equipped with belt pulley, and screw rod passes through belt, belt pulley
It is sequentially connected with the output pulley of 9 power output end of screw drive motor.
Since diameter pushes away tooth block 12 of putting into gear always with shift 3 high-speed rotation of output shaft, and it is not rotate that axis, which moves shift carriage 8,
, so axis moves shift carriage and be easy to cause abrasion by tangential force for a long time, therefore in the present embodiment, moved outside shift carriage 8 in axis
It is set with sliding bearing 801, the inner ring of sliding bearing 801 moves shift carriage 8 with axis and is fixedly connected, when axis moves shift carriage in spiral shell
When moving on bar 7,801 synchronizing moving of sliding bearing, when putting into gear, the outer ring of sliding bearing 801 pushes away extension with some corresponding diameter
The extrusome 1202 of gear tooth block 12 contacts and will change extrusome to be ejected outward, is realized putting into gear for the gear, is substantially reduced component
Abrasion, it is highly-safe.
Claims (10)
1. a kind of inner bearing type gearshift gearbox, it is characterised in that: including gearbox body, power input shaft and power output
Axis and clutch;Shift output shaft one and shift output shaft two, the shift output shaft are installed in parallel in gearbox body
One and shift output shaft two respectively include solid-section and hollow section, diameter is set in solid-section and is sequentially increased or reduced fixed tooth
Wheel is set with diameter in hollow section and is sequentially increased or reduced rim gear wheel or fixed gear;It is set on the outside of shift output shaft one
Diameter be sequentially increased or reduced rim gear wheel and fixed gear and shift output shaft two on the outside of the diameter that is set be sequentially reduced or increase
Big fixed gear and rim gear wheel is engaged to form transmission gear pair;It is moved by clutch with described one end of shift output shaft one
The transmission connection of power input shaft;One end of shift output shaft two is connect by output gear with pto shaft drive;It is defeated shifting gears
On the internal chamber wall of the hollow section of the installation rim gear wheel of shaft one and shift output shaft two, it is uniformly distributed along the circumference and offers the tooth block of T-type
Sliding slot, each tooth block sliding slot include the limit shoulder of centre bore He its two sides, and the diameter that matching is set with T-type in each tooth block sliding slot pushes away extension
Tooth block is kept off, each diameter pushes away the inner end setting extrusome for tooth block of putting into gear, and outer end is provided with the tooth shoulder protruded to two sides, extrusome matching
It is inserted into the centre bore, tooth shoulder outer surface distinguishes with teeth section;The transmission gear is rim gear wheel, and the tooth of outer rim distribution is outer ring
Tooth, the tooth of inner rim distribution are inner circular tooth, and are located at inner circular tooth two sides and are respectively arranged with bearing holder (housing, cover) and are equipped with spring bearing, institute
It states shift output shaft one and shift output shaft two is mounted in the spring bearing;In the shift output shaft one and shift output shaft
It is respectively installed with axis in two inner cavity and moves block, axis, which moves on the outside of block, constitutes axis shifting shift carriage after bearing set, axis moves shift carriage
When being moved to transmission gear position, bearing outer ring is supported on the extrusome inner end that the diameter pushes away tooth block of putting into gear, while radially
It pushes each diameter to push away tooth block of putting into gear to be displaced outwardly, after the diameter, which pushes away tooth block of putting into gear, radially to be slided, is located at the tooth shoulder table
Inner ring tooth engagement described in the tooth Duan Nengyu in face;Spring mounting groove is had in the two sides of the tooth block sliding slot of the T-type and is arranged
Positioning column, the both ends of return spring are separately connected corresponding positioning column, and diameter is articulated in the middle part of return spring and pushes away tooth block of putting into gear
The setting of extrusome surface is moved back on bumping post.
2. a kind of inner bearing type gearshift gearbox, it is characterised in that: including gearbox body, power input shaft and power output
Axis and clutch;Shift output shaft one and shift output shaft two, the shift output shaft are installed in parallel in gearbox body
One and shift output shaft two respectively include solid-section and hollow section, diameter is set in solid-section and is sequentially increased or reduced fixed tooth
Wheel is set with diameter in hollow section and is sequentially increased or reduced rim gear wheel or fixed gear;It is set on the outside of shift output shaft one
Diameter be sequentially increased or reduced rim gear wheel and fixed gear and shift output shaft two on the outside of the diameter that is set be sequentially reduced or increase
Big fixed gear and rim gear wheel is engaged to form transmission gear pair;It is moved by clutch with described one end of shift output shaft one
The transmission connection of power input shaft;One end of shift output shaft two is connect by output gear with pto shaft drive;
The external annulus of the rim gear wheel is provided with outer ring tooth, internal ring wall is provided with inner circular tooth;Center is provided in the hollow section
Cavity and tooth block sliding slot is uniformly provided with along annular on the shaft part, the notch of tooth block sliding slot blocked by the inner circular tooth of rim gear wheel,
Slot bottom and center cavity penetrate through, and tooth block sliding slot inner wall is provided with limited step, diameter is installed at limited step and pushes away tooth block of putting into gear, institute
The inner face stretching slot bottom that diameter pushes away tooth block of putting into gear is stated, the outer end face that diameter pushes away tooth block of putting into gear is provided with can be with the inner circular tooth of rim gear wheel
Intermeshing tooth of putting into gear;Shift carriage can be moved along the axis that axis moves axially by being provided in the center cavity, and the axis shifting is changed
Gear sliding block, which is moved at tooth block of putting into gear, can push away the diameter extension that tooth block of putting into gear ejects outward and diameter is made to push away tooth block outer end face of putting into gear
The inner ring tooth engagement for keeping off tooth and rim gear wheel realizes transmission.
3. inner bearing type gearshift gearbox according to claim 1 or 2, it is characterised in that: the transmission gear is to packet
Include the different accelerating gear of transmission ratio to and reduction gearing pair, one pair of them reduction gearing reverse gear is provided with to centre.
4. inner bearing type gearshift gearbox according to claim 1 or 2, it is characterised in that: the inner circular tooth is set to
The center of rim gear wheel internal ring wall, spring bearing are symmetrically arranged on the arranged on left and right sides of inner circular tooth, and rim gear wheel passes through spring bearing
It is set in the hollow section.
5. inner bearing type gearshift gearbox according to claim 1 or 2, it is characterised in that: the slot of the tooth block sliding slot
Bottom is provided with the centre bore with center cavity perforation, and it includes tooth shoulder and extrusome that the diameter, which pushes away tooth block of putting into gear, and the tooth shoulder clamps
At limited step, tooth of putting into gear is set to tooth shoulder outer end face, and the extrusome is set in centre bore, extrusome with a thickness of a,
The depth of centre bore is b, wherein a > b, and the extrusome is towards raised cambered surface centered on the end face of center cavity.
6. inner bearing type gearshift gearbox according to claim 5, it is characterised in that: on the cell wall of the tooth block sliding slot
It symmetrically is provided with spring mounting groove, is provided with positioning column in spring mounting groove, is fixedly installed with return spring by two positioning columns,
Be provided on the extrusome and move back bumping post, the middle part of return spring is connect with bumping post is moved back, the return spring be capable of providing by
The diameter of outer ejection pushes away the elastic force that tooth block of putting into gear inwardly is sprung back.
7. inner bearing type gearshift gearbox according to claim 5, it is characterised in that: the axis, which moves on shift carriage, to be covered
Equipped with sliding bearing, the extrusome that the outer ring of the sliding bearing can push away tooth block of putting into gear with diameter contacts and pushes up extrusome outward
Out.
8. inner bearing type gearshift gearbox according to claim 1 or 2, it is characterised in that: set in the center cavity
It is equipped with inner bearing, interior axle bed is installed in inner bearing, edge is axially installed with two opposite screw rods of hand of spiral, spiral shell on interior axle bed
Bar outer end is stretched out center cavity and is installed on gearbox body by side axis seat, and intermeshing synchronization is respectively installed on screw rod
Gear, the axis move shift carriage thread set on two screw rods, screw drive motor, screw rod are provided in the gearbox body
The output pulley of driving motor is connect by belt with the pulley drive of a wherein screw rod end.
9. inner bearing type gearshift gearbox according to claim 1 or 2, it is characterised in that: set in the center cavity
It is equipped with inner bearing, interior axle bed is installed in inner bearing, on interior axle bed along being axially installed with screw rod, locating shaft, screw rod, locating shaft
Outer end is stretched out center cavity respectively and is installed on gearbox body by side axis seat, and the axis moves shift carriage and is set in spiral shell jointly
On bar, locating shaft, be provided with screw drive motor in the gearbox body, the output pulley of screw drive motor by belt with
The pulley drive of screw rod end connects.
10. inner bearing type gearshift gearbox according to claim 1 or 2, it is characterised in that: the clutch is multi-disc
Formula clutch, the clutch include and the clutch outer member of power input shaft one, the clutch with shift output shaft one
Inner casing and multiple groups are overlapped friction plate arranged in a crossed manner, tabletting, form annular chamber between the clutch outer member, clutch inner casing
Body, the friction plate, tabletting are set on clutch inner casing and are set in annular housing, and tabletting is connect with clutch outer member,
Friction plate is connect with clutch inner casing, and clutch plunger, clutch plunger and clutch are additionally provided in the clutch outer member
Working oil chamber is connected to and then driving clutch plunger pushes compression tabletting, friction plate to realize transmission, is gone back on the clutch inner casing
It is movably installed with piston return diaphragm type spring, the piston return diaphragm type spring other end is connect with clutch plunger.
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CN110425258A (en) * | 2019-09-03 | 2019-11-08 | 郭宁波 | A kind of gearbox |
CN111457065A (en) * | 2020-04-29 | 2020-07-28 | 杭州萧山江南通用机械有限公司 | Two kind of rotational speed output gear boxes of concentric |
CN113300534A (en) * | 2021-05-18 | 2021-08-24 | 杨立 | Intelligent energy-saving motor with variable frequency output |
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Effective date of registration: 20240403 Address after: No. 22 Qianxi Road, Dongdong New Area, Wenling City, Taizhou City, Zhejiang Province, 317511 Applicant after: ZHEJIANG HAITIAN MACHINERY Co.,Ltd. Country or region after: China Address before: 450000 21, building 2, yard 18, Huaibei street, Erqi District, Zhengzhou City, Henan Province Applicant before: Niu Qingfeng Country or region before: China |
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