CN105276119A - Rice transplanter type vehicle transmission - Google Patents

Rice transplanter type vehicle transmission Download PDF

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Publication number
CN105276119A
CN105276119A CN201410240703.1A CN201410240703A CN105276119A CN 105276119 A CN105276119 A CN 105276119A CN 201410240703 A CN201410240703 A CN 201410240703A CN 105276119 A CN105276119 A CN 105276119A
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China
Prior art keywords
shaft
transfer
bearing
gear
differential
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CN201410240703.1A
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Chinese (zh)
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CN105276119B (en
Inventor
沈崇鑫
夏忠安
金涛
程旭
陈徽
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CHANGZHOU DONGFENG AGRICULTURAL MACHINERY GROUP Co Ltd
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CHANGZHOU DONGFENG AGRICULTURAL MACHINERY GROUP Co Ltd
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Priority to CN201410240703.1A priority Critical patent/CN105276119B/en
Publication of CN105276119A publication Critical patent/CN105276119A/en
Application granted granted Critical
Publication of CN105276119B publication Critical patent/CN105276119B/en
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Abstract

The invention relates to a rice transplanter type vehicle transmission, comprising a transmission cabinet, a differential, steering clutches, a brake, and a steering transmission mechanism. The differential is installed on the transmission cabinet and is connected with a left half axle and a right half axle. The transfer-drive sliding variable gear of a transmission shaft is corresponding to a transfer-drive duplicate gear which is installed on a transfer-drive transmission shaft. A transfer-drive driving taper gear on the transfer-drive transmission shaft is meshed with a transfer-drive output taper gear shaft. Half-shaft output driving taper gears are respectively connected with a left tail end output shaft and a right tail end output shaft through a half-shaft output driven taper gear and respective steering clutches. A differential lock installed on the left half axle is opposite to a differential housing. The brake is installed on a right housing and a differential transmission shaft. The second transfer-drive taper gear on the differential housing is meshed with a second transfer-drive taper gear shaft. The rice transplanter type vehicle transmission is characterized by compact structure, good installation and maintainability, and reliable use, and adapting to multifunctional configuration requirements.

Description

Rice transplanting type transmission for vehicles
Technical field
The present invention relates to a kind of rice transplanting type transmission for vehicles, belong to transplanter Power output technical field.
Background technique
Transplanter respectively by transmission of power to rice transplanting mechanism and seedlings sending mechanism, under the cooperatively interacting of two great institutions, the seedling pin of rice transplanting mechanism inserts seedling block and captures rice shoot, and taken out and move down, when moving on to the transplanting depth of setting, by the insert planting fork in rice transplanting mechanism, rice shoot is depressed from seedling pin, complete a rice transplanting process.Meanwhile, by kickboard and hydraulic system, the relative position of the relative position of control lines travelling wheel and body and kickboard and seedling pin, makes transplanting depth basically identical.And high-speed transplanter, its speed changer by power by each gear of each transmission shaft in speed changer and cooperation to form different drive ratios, realized forward and reverse walking of wheel by different gear state, and provide different velocity ratios to realize spacing in the rows control.
Current high-speed transplanter speed change system device mostly adopts two casees composition Split box body structures, change and be inverted the defeated spindle speed function configuration of power, production technology difficulty is large, and when Power output axle head breaks down, dismounting difficulty is large, and exterior steer drive structure is not compact.Secondly, existing speed changer is provided with a sub-power and exports, for driving seedling-transplanting device work, but it is through double reduction that sub-power exports, only can export the operating rate of single speed, single direction rotation, when rice transplanting unit needs to increase the functional requirement such as tillage implement and fertilizing equipment, to compound working tool or amelioration product adaptive capacity deficiency.Moreover, current existing walking braking gear, that break is arranged on the central driving shaft of gearbox, but by the impact that break self structure requires, centre distance between central driving shaft and transmission shaft is comparatively large, and makes the centre distance between central driving shaft and semiaxis comparatively large, causes mission case larger, therefore the size of driving gear also becomes large, and speed changer general technical Economy is poor.In addition, steering gear and the speed changer of existing rice transplanting type vehicle are Split type structure, steering gear is arranged on the outside of mission case, not only loosely organized, and need the housing of steering gear and gear box casing to need to process respectively, therefore fabricating cost is high, operation inconvenience during installation and maintenance.
Summary of the invention
The object of this invention is to provide a kind of compact structure, adapt to multi-functional configuration needs, installation and maintenance are good, use reliable, the housing structure of the rice transplanting type transmission for vehicles of good economy performance.
The present invention is the technological scheme achieved the above object: a kind of rice transplanting type transmission for vehicles, it is characterized in that: comprise mission case, input shaft, transmission shaft, central driving shaft, left half axle, right axle shaft, differential mechanism, steering clutch and break and steering gear, described mission case comprises side and opens wide and have the left shell of speed change cavity and left differential mechanism cavity and be connected to right shell body left shell with right differential mechanism cavity, left shell and right shell body side are connected to left steering clutch outer member and right steering clutch outer member, right shell body top has the obstructed transfer cavity of differential mechanism cavity right with it, transfer-case cover is arranged on the top of right shell body and covers on the transfer cavity place of right shell body,
Described input shaft passes through bearing cantilever support on left shell, transmission shaft passes through left bearing, intermediate bearing and right bearing are bearing in left shell respectively, on right shell body and transfer-case cover, be arranged on driving gear on transmission shaft and selective sliding gear is positioned at speed change cavity, central driving shaft is bearing on left shell and right shell body by bearing, the input gear be connected on input shaft engages with driving gear, be arranged on central transmission gearwheel on central driving shaft and central transmission small gear corresponding with selective sliding gear respectively, the gear shift fork be connected on transfer-case cover is connected with selective sliding gear,
The transfer selective sliding gear be arranged on transmission shaft is arranged in the transfer cavity of right shell body, transfer transmission shaft is bearing on left shell and transfer-case cover by bearing, transfer duplicate gear is arranged on transfer transmission shaft by free wheel device, and transfer selective sliding gear is corresponding with transfer duplicate gear, the transfer shift fork be arranged on transfer-case cover is connected with transfer selective sliding gear, and the transfer drive bevel gear being arranged on transfer transmission shaft side engages with the transfer output bevel gear wheel shaft be arranged on transfer-case cover;
Described differential mechanism comprises and being connected, and by differential drive shaft that bearing is bearing in the differential casing on left shell and is bearing in by bearing on right shell body, the bevel planet gear be connected on differential casing engages with two-semiaxle bevel gear, be connected to differential casing or/and the differential gear on differential drive shaft engages with central transmission small gear, left half axle and right axle shaft are connected with respective semi-axle bevel gear respectively, its active engaging tooth of differential lock be arranged on left half axle is relative with the passive engaging tooth on differential casing, it is relative with differential lock that the differential lock be arranged on left shell handles bearing pin, the semiaxis output drive bevel gear be arranged on respectively on differential casing and differential drive shaft exports with each self-corresponding semiaxis and is engaged by dynamic bevel gear, and semiaxis output is connected with left-end point output shaft and right end output shaft by respective steering clutch respectively by dynamic bevel gear, be arranged on left steering clutch outer member relative with the sliding shaft sleeve of respective steering clutch with the steering clutch bearing pin on right steering clutch outer member,
Described differential casing is also provided with second point of dynamic bevel gear, the second transfer bevel gear shaft engages with second point of dynamic bevel gear, and the second transfer bevel gear shaft extends left steering clutch outer member;
Described break comprises braking platen, braking pin shaft and a plurality of braking driven plate and is disposed on the brake strip between braking driven plate, each braking driven plate is connected on right shell body, each brake strip is connected to differential drive shaft, the braking platen be sleeved on right axle shaft is relative with braking driven plate, the braking pin shaft be arranged on right shell body is relative with braking platen, and right shell body is extended in braking pin shaft side.
Wherein: described steering gear is arranged on left shell, the outside that left shell is positioned at speed change cavity is also provided with the boot-shaped cavity do not communicated with speed change cavity and left differential mechanism cavity, lower end cap is arranged on left shell and is positioned at boot-shaped cavity bottom, on the top that steering shaft is bearing in its boot-shaped cavity of left shell by bearing and lower end cap, output shaft is turned to be bearing on its boot-shaped cavity bottom of left shell and lower end cap by bearing and to pass lower end cap, be arranged on and turn to the tooth sector on output shaft to engage with the actuation gear in steering shaft, and tooth sector is provided with block, clutch control lever shaft is turned to be bearing on its boot-shaped cavity bottom of left shell and lower end cap by bearing and to pass lower end cap, turn to push pedal clutch control lever shaft with a side opening, in push pedal, symmetrically arranged pawling is positioned at the both sides of block, tooth sector is along when turning to the center of rotation of output shaft to rotate, block is stirred push pedal and is turned to clutch control lever shaft along turning to the center of rotation of clutch control lever shaft to rotate, turn to the outside of clutch control lever shaft that actuating linkage is installed, regulating tie bar respectively with actuating linkage and turn to clutch rocking arm to be connected, turn to clutch rocking arm and steering clutch pinned connection.
Described block is roller, tooth sector is provided with roller shaft, roller is arranged on roller shaft, push pedal is provided with the arc-shaped limit groove matched with roller in the inner side of pawling, and turns to the center of clutch control lever shaft and turn to the center at the center of output shaft and block on the same line.
The shaft shoulder is provided with in the middle part of described transfer transmission shaft, the one end being arranged on its inner ring of free wheel device on transfer transmission shaft is spacing by the shaft shoulder of transfer transmission shaft, the other end withstands on bearing by axle sleeve, transfer duplicate gear is connected on free wheel device by key, and two ends, free wheel device outer ring are connected with transfer duplicate gear respectively by back-up ring.
Described transfer drive bevel gear is by bearing supporting transfer-case cover, and transfer output bevel gear wheel shaft is by bearing supporting transfer-case cover, and transfer output bevel gear wheel shaft can oppositely be installed.
Described transmission shaft is Step Shaft, the packing holder that right shell body is provided with bearing support and is adjacent, and intermediate bearing and seal ring are arranged on transmission shaft and right shell body, and selective sliding gear and transfer selective sliding gear respectively key are connected on transmission shaft.
Described steering clutch comprises steering clutch housing, sliding shaft sleeve and a plurality of turn to clutch driven plate and be disposed on to turn to turn to clutch friction plate between clutch driven plate, semiaxis exports and is connected with steering clutch housing by dynamic bevel gear, left-end point output shaft is connected with respective sliding shaft sleeve respectively with right end output shaft, clutch friction plate is respectively turned to be connected with sliding shaft sleeve, clutch driven plate is respectively turned to be connected with steering clutch housing, sliding shaft sleeve end is connected with platen by clutch bearing, also butterfly spring is installed between platen and steering clutch housing.
Second point of described dynamic bevel gear is bearing on left shell and left steering clutch outer member by bearing, second point of dynamic bevel gear and semiaxis export drive bevel gear and arrange back-to-back, and the centerline axis parallel of the central axis of left-end point output shaft and the second transfer bevel gear shaft.
Described differential drive shaft is step-like, and be provided with splined shaft outside differential drive shaft, have axle bed inside the splined shaft of differential drive shaft, bearing is arranged on the bearing support in the axle bed of differential drive shaft and right shell body, and the outer side surface of bearing support is the confined planes of braking driven plate.
Mission case of the present invention adopts left shell, right shell body and transfer-case cover, and left shell, right shell body are connected with left steering clutch outer member and right steering clutch outer member respectively, there is good manufacturability and maintainability, and right shell body top has the obstructed transfer cavity of differential mechanism cavity right with it, left shell is different with transfer cavity with differential mechanism cavity from the speed change cavity that right shell body is formed, therefore different to two cavity institute adapted lubricants capacities, therefore the use oil mass of speed change cavity and differential mechanism cavity can be reduced, practical.Transmission shaft of the present invention is coaxially fitted with selective sliding gear and transfer selective sliding gear, the large and small gear mesh of central authorities on selective sliding gear and central driving shaft should, and transfer selective sliding gear is corresponding with transfer duplicate gear, therefore two grades of free-standing Power output and sub-power output function can be formed, in addition free wheel device is provided with in transfer duplicate gear, ensure that transfer transmission shaft can not reverse, improve functional reliability.The present invention is provided with the second transfer bevel gear shaft on the differential casing of differential mechanism, second transfer bevel gear shaft engages with transfer bevel gear shaft, therefore the Power output of transmission backward can be formed, type modification is simple, the transmission shaft that can be used for other farm implements connects, and facilitating power to connect, making rice transplanting type transmission for vehicles meet the functional requirements such as tillage implement when transforming other management facility into, adapt to multi-functional configuration needs, expand the using scope of transplanter.The present invention's second point of dynamic bevel gear is directly installed on left shell and left steering clutch outer member, and the second transfer bevel gear shaft is bearing on left shell and left steering clutch outer member, rational in infrastructure, compact.The present invention is provided with differential mechanism in mission case, and break is arranged on the differential drive shaft of differential mechanism side, and be connected with right shell body, therefore at the centre distance transmission shaft determining reduce under velocity ratio condition between central driving shaft and transmission shaft, thus reducing the size of central driving shaft upper transfer gear, compact structure, drive path is short, transmission efficiency is high, speed changer general technical better economy.The present invention is provided with the boot-shaped cavity obstructed with gear cavity on left shell, steering gear is arranged in speed changer, not only reduce the quantity of housing, and significantly reduce making processing cost, simultaneously by steering gear and speed changer integrated, compact structure, is convenient to the layout of type very much.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of invention rice transplanting type transmission for vehicles.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 is the backsight structural representation of Fig. 1.
Fig. 4 is the sectional structure schematic diagram of the A-A of Fig. 1.
Fig. 5 is that the B-B of Fig. 3 analyses and observe rotational structure schematic diagram.
Fig. 6 is the structural representation of steering gear of the present invention.
Fig. 7 is that the C of Fig. 6 is to structural representation.
Wherein: 1-mission case, 1-1-left shell, 1-2-lower end cap, 1-3-left steering clutch outer member, 1-4-right shell body, 1-5-transfer-case cover, 1-6-right steering clutch outer member, 2-actuating linkage, 3-turn to swing arm, 4-regulating tie bar, 5-turn to clutch rocking arm, 6-left-end point output shaft, 7-the second transfer bevel gear shaft, 8-right end output shaft, 9-bearing, 10-input shaft, 11-input gear, 12-driving gear, 13-transmission shaft, 14-central transmission gearwheel, 15-central driving shaft, 16-differential mechanism, 16-1-differential lock handles bearing pin, 16-2-spring, 16-3-differential lock, 16-4-differential casing, 16-5-differential gear, 16-6-differential drive shaft, 16-7-semi-axle bevel gear, 16-8-differential mechanism bearing pin, 16-9-bevel planet gear, 17-the second point of dynamic bevel gear, 18-semiaxis exports drive bevel gear, 19-left half axle, 20-semiaxis exports by dynamic bevel gear, 21-steering clutch, 21-1-bearing support, 21-2-steering clutch housing, 21-3-butterfly spring, 21-4-platen, 21-5-clutch bearing, 21-6-turn to clutch friction plate, 21-7-turn to clutch driven plate, 21-8-steering clutch bearing pin, 21-9-sliding shaft sleeve, 22-selective sliding gear, 23-gear shift fork, 24-transfer selective sliding gear, 25-central transmission small gear, 26-break, 26-1-brake strip, 26-2-braking driven plate, 26-3-braking platen, 26-4-braking pin shaft, 27-right axle shaft, 28-transfer duplicate gear, 29-free wheel device, 30-transfer transmission shaft, 31-transfer drive bevel gear, 32-transfer output bevel gear wheel shaft, 33-steering gear, 33-1-steering shaft, 33-2-tooth sector, 33-3-turn to output shaft, 33-4-turn to clutch control lever shaft, 33-5-push pedal, 33-6-block, 33-7-roller shaft.
Embodiment
See shown in Fig. 1 ~ 7, rice transplanting type transmission for vehicles of the present invention, comprises mission case 1, input shaft 10, transmission shaft 13, central driving shaft 15, left half axle 19, right axle shaft 27, differential mechanism 16, steering clutch 21 and break 26 and steering gear 33.
See shown in Fig. 1 ~ 4, mission case 1 of the present invention comprises side and opens wide and have the left shell 1-1 of speed change cavity and left differential mechanism cavity and be connected to right shell body 1-4 left shell 1-1 with right differential mechanism cavity, left shell 1-1 and right shell body 1-4 side are connected to left steering clutch outer member 1-3 and right steering clutch outer member 1-6, left shell 1-1 and right shell body 1-4 is dissymmetrical structure, right shell body 1-4 top has the obstructed transfer cavity of differential mechanism cavity right with it, transfer-case cover 1-5 is arranged on the top of right shell body 1-4 and covers on the transfer cavity place of right shell body 1-4, the cavity that left shell 1-1 and right shell body 1-4 is formed and the transfer cavity formed between right shell body 1-4 and transfer-case cover 1-5 realize independent lubricating, that can reduce lubricant oil uses oil mass.
See Fig. 1, shown in 4, input shaft 10 of the present invention passes through bearing 9 cantilever support at left shell 1-1, transmission shaft 13 passes through left bearing, intermediate bearing and right bearing are bearing in left shell 1-1 respectively, on right shell body 1-4 and transfer-case cover 1-5, be arranged on driving gear 12 on transmission shaft 13 and selective sliding gear 22 is positioned at speed change cavity, central driving shaft 15 is bearing on left shell 1-1 and right shell body 1-4 by bearing, the input gear 11 be connected on input shaft 10 engages with the driving gear 12 on transmission shaft 13, be arranged on central transmission gearwheel 14 on central driving shaft 15 and central transmission small gear 25 corresponding with selective sliding gear 22, the gear shift fork 23 be connected on transfer-case cover 1-5 is connected with selective sliding gear 22, stir selective sliding gear 22 by gear shift fork 23 to engage with central transmission gearwheel 14 and central transmission small gear 25 respectively, realize second gear Power output.As shown in Figure 4, transmission shaft 13 of the present invention is Step Shaft, the packing holder that right shell body 1-4 is provided with bearing support and is adjacent, intermediate bearing and seal ring are arranged on right shell body 1-4 and transmission shaft 13, selective sliding gear 22 and transfer selective sliding gear 24 to be connected on transmission shaft 13 respectively by key and to be positioned at the both sides of intermediate bearing, realize the independent lubricating of two cavitys.
See Fig. 1, 4, shown in 5, the present invention's transfer selective sliding gear 24 be arranged on transmission shaft 13 is arranged in the transfer cavity of right shell body 1-4, transfer transmission shaft 30 is bearing on right shell body 1-4 and transfer-case cover 1-5 by bearing, transfer duplicate gear 28 is arranged on transfer transmission shaft 30 by free wheel device 29, the shaft shoulder is provided with in the middle part of transfer transmission shaft 30, the one end being arranged on the free wheel device 29 Qi Quan side on transfer transmission shaft 30 is spacing by transfer transmission shaft 30 shaft shoulder, the other end withstands on bearing by axle sleeve, transfer duplicate gear 28 is connected on free wheel device 29 by key, two ends, free wheel device 29 outer ring are connected with transfer duplicate gear 28 respectively by back-up ring, free wheel device 29 is reliably connected with transfer duplicate gear 28, and transfer selective sliding gear 24 is corresponding with transfer duplicate gear 28, be arranged on transfer shift fork on transfer-case cover 1-5 to be connected with transfer selective sliding gear 24, transfer selective sliding gear 24 is driven to move axially by transfer shift fork, make it large, little respectively with on transfer duplicate gear 28 of small gear, gearwheel engages, export to form two grades of free-standing sub-powers, the transfer drive bevel gear 31 being arranged on transfer transmission shaft 30 side engages with the transfer output bevel gear wheel shaft 32 be arranged on transfer-case cover 1-5.
See shown in Fig. 4,5, transfer drive bevel gear 31 of the present invention is arranged on transfer transmission shaft 30, and transfer drive bevel gear 31 is connected with transfer-case cover 1-5 by bearing, and transfer output bevel gear wheel shaft 32 is also bearing on transfer-case cover 1-5 by bearing, the present invention also fills counter for transfer output bevel gear wheel shaft 32, make the counterrotating of implementation pto=power take-off, meet supporting requirement during supporting different type of machines.
See Fig. 1, 4, shown in, differential mechanism 16 of the present invention comprises and being connected, and be bearing in the differential casing 16-4 on left shell 1-1 by bearing and be bearing in differential drive shaft 16-6 on right shell body 1-4 by bearing, the bevel planet gear 16-9 be connected on differential casing 16-4 engages with two-semiaxle bevel gear 16-7, bevel planet gear 16-9 is connected with differential casing 16-4 by differential mechanism bearing pin 16-8, be connected to differential casing 16-4 or/and the differential gear 16-5 on differential drive shaft 16-6 engages with central transmission small gear 25, left half axle 19 and right axle shaft 27 are connected with respective semi-axle bevel gear 16-7 respectively, its active engaging tooth of differential lock 16-3 be arranged on left half axle 19 is relative with the passive engaging tooth on differential casing 16-4, it is relative with differential lock 16-3 that the differential lock be arranged on left shell 1-1 handles bearing pin 16-1, spring 16-2 is provided with between differential lock 16-3 and differential casing 16-4, make differential lock handle bearing pin 16-1 by operating mechanism to rotate, withstand on differential lock 16-3 by the inclined-plane on differential lock manipulation bearing pin 16-1 or working surface to move axially, its active engaging tooth of differential lock 16-3 is made to engage with the passive engaging tooth on differential casing 16-4 and engage, when without external force, passive engaging tooth on its active engaging tooth of differential lock 16-3 and differential casing 16-4 is departed from, realize differential function.As shown in Figure 4, the present invention's semiaxis output drive bevel gear 18 be arranged on differential casing 16-4 and differential drive shaft 16-6 exports with each self-corresponding semiaxis and is engaged by dynamic bevel gear 20, and semiaxis output is connected with left-end point output shaft 6 and right end output shaft 8 by respective steering clutch 21 respectively by dynamic bevel gear 20, be arranged on left steering clutch outer member 1-3 relative with the sliding shaft sleeve 21-9 of respective steering clutch 21 with the steering clutch bearing pin 21-8 on right steering clutch outer member 1-6, when steering clutch bearing pin 21-8 rotates, the sliding shaft sleeve 21-9 being promoted respective steering clutch 21 by its inclined-plane or working surface is moved, realization turns to clutch, left-end point output shaft 6 and right end output shaft 8 outputting power also make trailing wheel walk and turn to by driving mechanism.
As shown in Figure 4, steering clutch 21 of the present invention comprises steering clutch housing 21-2, sliding shaft sleeve 21-9 and a plurality of turn to clutch driven plate 21-7 and be disposed on to turn to turn to clutch friction plate 21-6 between clutch driven plate 21-7, semiaxis exports and is connected with steering clutch housing 21-2 by dynamic bevel gear 20, the axle journal place of steering clutch housing 21-2 is connected with bearing support 21-1 by bearing, bearing support 21-1 connects with left shell 1-1, left-end point output shaft 6 is connected with respective sliding shaft sleeve 21-9 respectively with right end output shaft 8, clutch friction plate 21-6 is respectively turned to be connected with sliding shaft sleeve 21-9, clutch driven plate 21-7 is respectively turned to be connected with steering clutch housing 21-2, sliding shaft sleeve 21-9 end is connected with platen 21-4 by clutch bearing 21-5, between platen 21-4 and steering clutch housing 21-2, butterfly spring 21-3 is also installed, relative with sliding shaft sleeve 21-9 end face with the steering clutch bearing pin 21-8 on right steering clutch outer member 1-6 owing to being arranged on left steering clutch outer member 1-3, push sliding shaft sleeve 21-9 by the bearing pin 21-8 rotation of operating device drive steering clutch to move axially, make to turn to clutch friction plate 21-6 and turn to clutch driven plate 21-7 to depart from realization to turn to clutch.
As shown in Figure 4, differential casing 16-4 of the present invention is also provided with second point of dynamic bevel gear 17, second transfer bevel gear shaft 7 engages with second point of dynamic bevel gear 17, second transfer bevel gear shaft 7 extends left steering clutch outer member 1-3, the second transfer bevel gear shaft 7 can be made to be connected with the transmission shaft of other farm implements, to realize multi-functional configuration.As shown in Figure 4, the present invention's second point of dynamic bevel gear 17 is bearing on left shell 1-1 and left steering clutch outer member 1-3 by bearing, second point of dynamic bevel gear 17 exports drive bevel gear 18 with semiaxis and arranges back-to-back, reasonable stress, compact structure, and the centerline axis parallel of the central axis of left-end point output shaft 6 and second point of dynamic bevel gear 17 transmission shaft, the synchronous mode generating transmission backward exports, because second point of dynamic bevel gear 17 is connected with steering clutch 21, and the second transfer bevel gear shaft 7 is bearing on left shell 1-1, rational in infrastructure, compact, can be used for meeting the functional requirements such as tillage implement, modification is convenient.
As shown in Figure 4, break 26 of the present invention comprises braking platen 26-3, braking pin shaft 26-4 and a plurality of braking driven plate 26-2 and the brake strip 26-1 be disposed between braking driven plate 26-2, each braking driven plate 26-2 is connected on right shell body 1-4, each brake strip 26-1 is connected on differential drive shaft 16-6, the braking platen 26-3 be sleeved on right axle shaft 27 is relative with braking driven plate 26-2, the braking pin shaft 26-4 be arranged on right shell body 1-4 is relative with braking platen 26-3, by brake operating mechanism, braking pin shaft 26-4 is rotated, namely and by its inclined-plane or working surface braking platen 26-3 is moved axially, brake strip 26-1 is pressed in braking driven plate 26-2 and cuts off power by braking platen 26-3.As shown in Figure 4, differential drive shaft 16-6 of the present invention is step-like, and be provided with splined shaft outside differential drive shaft 16-6, inside the splined shaft of differential drive shaft 16-6, there is axle bed, bearing is arranged on the axle bed of differential drive shaft 16-6 and the bearing support of right shell body 1-4, and the outer side surface of bearing support is the confined planes of braking driven plate 26-2, compact structure, rationally.
See Fig. 6, shown in 7, steering gear 33 of the present invention is arranged on left shell 1-1, the outside that left shell 1-1 is positioned at speed change cavity is also provided with the boot-shaped cavity do not communicated with speed change cavity and left differential mechanism cavity, so form independently lubricating cavity, lower end cap 1-2 is arranged on left shell 1-1 and is positioned at boot-shaped cavity bottom, on the top that steering shaft 33-1 is bearing in its boot-shaped cavity of left shell 1-1 respectively by bearing and lower end cap 1-2, output shaft 33-3 is turned to be bearing on its boot-shaped cavity bottom of left shell 1-1 and lower end cap 1-2 by bearing and to pass lower end cap 1-2, the outside of output shaft 33-3 is turned to be connected with turning to swing arm 3, deflecting bar operating device is driven to realize Vehicular turn by turning to swing arm 3.Be arranged on and turn to the tooth sector 33-2 on output shaft 33-3 to engage with the actuation gear on steering shaft 33-1, tooth sector 33-2 can be welded on and turn on output shaft 33-3 by the present invention, or mounting hole on tooth sector 33-2 is with the mounting hole of position-limited edge, as polygonal hole with turn to output shaft 33-3 to be matchedly connected, make tooth sector 33-2 and turn to together with output shaft 33-3 along turning to the center of rotation of output shaft 33-3 to rotate.See shown in Fig. 6,7, tooth sector 33-2 of the present invention is provided with block 33-6, this block 33-6 is roller, tooth sector 33-2 is provided with roller shaft 33-7, roller is provided with on roller shaft 33-7, and is locked by fastening piece, roller is arranged on tooth sector 33-2, roller of the present invention is rolling bearing, can improve its working life.
See shown in Fig. 6,7, the present invention turns to clutch control lever shaft 33-4 to be bearing on its boot-shaped cavity bottom of left shell 1-1 and lower end cap 1-2 by bearing and to pass lower end cap 1-2, turn to push pedal 33-5 clutch control lever shaft 33-4 with a side opening, on push pedal 33-5, symmetrically arranged pawling is positioned at the both sides of block 33-6, tooth sector 33-2 is along when turning to the center of rotation of output shaft 33-3 to rotate, and block 33-6 stirs push pedal 33-5 and turns to clutch control lever shaft 33-4 along turning to the center of rotation of clutch control lever shaft 33-4 to rotate.As shown in Figure 7, the best push pedal 33-5 of the present invention is provided with the arc-shaped limit groove matched with roller in the inner side of pawling, roller can withstand on the arc-shaped limit groove of pawling, and drives and turns to clutch control lever shaft 33-4 to rotate.The present invention turns to the center of clutch control lever shaft 33-4 and turns to the center at the center of output shaft 33-3 and block 33-6 on the same line, i.e. convenient processing, uniform force in operation, and conveniently again controls respective operating mechanism.
See shown in Fig. 1 ~ 3, the present invention turns to the outside of clutch control lever shaft 33-4 to be provided with actuating linkage 2, regulating tie bar 4 is respectively with actuating linkage 2 with turn to clutch Rocker arm 5 to be connected, clutch Rocker arm 5 is turned to be connected with steering clutch bearing pin 21-8, drive during actuating linkage 2 action turning to clutch control lever shaft 33-4 and control left and right turn clutch respectively, realize joint or the cut-out of power.

Claims (9)

1. a rice transplanting type transmission for vehicles, it is characterized in that: comprise mission case (1), input shaft (10), transmission shaft (13), central driving shaft (15), left half axle (19), right axle shaft (27), differential mechanism (16), steering clutch (21) and break (26) and steering gear (33), described mission case (1) comprises side and opens wide and have the left shell (1-1) of speed change cavity and left differential mechanism cavity and be connected to the right shell body (1-4) left shell (1-1) with right differential mechanism cavity, left shell (1-1) and right shell body (1-4) side are connected to left steering clutch outer member (1-3) and right steering clutch outer member (1-6), right shell body (1-4) top has the obstructed transfer cavity of differential mechanism cavity right with it, transfer-case cover (1-5) is arranged on the top of right shell body (1-4) and covers on the transfer cavity place of right shell body (1-4),
Described input shaft (10) by bearing (9) cantilever support on left shell (1-1), transmission shaft (13) passes through left bearing, intermediate bearing and right bearing are bearing in left shell (1-1) respectively, on right shell body (1-4) and transfer-case cover (1-5), be arranged on driving gear (12) on transmission shaft (13) and selective sliding gear (22) is positioned at speed change cavity, central driving shaft (15) is bearing on left shell (1-1) and right shell body (1-4) by bearing, the input gear (11) be connected on input shaft (10) engages with driving gear (12), be arranged on central transmission gearwheel (14) on central driving shaft (15) and central transmission small gear (25) corresponding with selective sliding gear (22) respectively, the gear shift fork (23) be connected on transfer-case cover (1-5) is connected with selective sliding gear (22),
The transfer selective sliding gear (24) be arranged on transmission shaft (13) is arranged in the transfer cavity of right shell body (1-4), transfer transmission shaft (30) is bearing on left shell (1-1) and transfer-case cover (1-5) by bearing, transfer duplicate gear (28) is arranged on transfer transmission shaft (30) by free wheel device (29), and transfer selective sliding gear (24) is corresponding with transfer duplicate gear (28), the transfer shift fork be arranged on transfer-case cover (1-5) is connected with transfer selective sliding gear (24), the transfer drive bevel gear (31) being arranged on transfer transmission shaft (30) side engages with the transfer output bevel gear wheel shaft (32) be arranged on transfer-case cover (1-5),
Described differential mechanism (16) comprises and being connected, and by differential drive shaft (16-6) that bearing is bearing in the differential casing (16-4) on left shell (1-1) and is bearing in by bearing on right shell body (1-4), the bevel planet gear (16-9) be connected on differential casing (16-4) engages with two-semiaxle bevel gear (16-7), be connected to differential casing (16-4) or/and the differential gear (16-5) on differential drive shaft (16-6) engages with central transmission small gear (25), left half axle (19) and right axle shaft (27) are connected with respective semi-axle bevel gear (16-7) respectively, its active engaging tooth of differential lock (16-3) be arranged on left half axle (19) is relative with the passive engaging tooth on differential casing (16-4), it is relative with differential lock (16-3) that the differential lock be arranged on left shell (1-1) handles bearing pin (16-1), semiaxis output drive bevel gear (18) be arranged on respectively on differential casing (16-4) and differential drive shaft (16-6) exports with each self-corresponding semiaxis and is engaged by dynamic bevel gear (20), and semiaxis output is connected with left-end point output shaft (6) and right end output shaft (8) by respective steering clutch (21) respectively by dynamic bevel gear (20), be arranged on left steering clutch outer member (1-3) relative with the sliding shaft sleeve of respective steering clutch (21) with the steering clutch bearing pin (21-8) on right steering clutch outer member (1-6),
Described differential casing (16-4) is also provided with second point of dynamic bevel gear (17), second transfer bevel gear shaft (7) engages with second point of dynamic bevel gear (17), and the second transfer bevel gear shaft (7) extends left steering clutch outer member (1-3);
Described break (26) comprises braking platen (26-3), braking pin shaft (26-4) and a plurality of braking driven plate (26-2) and on being disposed between braking driven plate (26-2) brake strip (26-1), each braking driven plate (26-2) is connected on right shell body (1-4), each brake strip (26-1) is connected to differential drive shaft (16-6), the braking platen (26-3) be sleeved on right axle shaft (27) is relative with braking driven plate (26-2), the braking pin shaft (26-4) be arranged on right shell body (1-4) is relative with braking platen (26-3), right shell body (1-4) is extended in braking pin shaft (26-4) side.
2. rice transplanting type transmission for vehicles according to claim 1, it is characterized in that: described steering gear (33) is arranged on left shell (1-1), the outside that left shell (1-1) is positioned at speed change cavity is also provided with the boot-shaped cavity do not communicated with speed change cavity and left differential mechanism cavity, lower end cap (1-2) is arranged on left shell (1-1) and is positioned at boot-shaped cavity bottom, on the top that steering shaft (33-1) is bearing in left shell (1-1) its boot-shaped cavity by bearing and lower end cap (1-2), output shaft (33-3) is turned to be bearing in its boot-shaped cavity bottom of left shell (1-1) by bearing and lower end cap (1-2) is gone up and passes lower end cap (1-2), be arranged on and turn to the tooth sector (33-2) on output shaft (33-3) to engage with the actuation gear in steering shaft (33-1), and tooth sector (33-2) is provided with block (33-6), clutch control lever shaft (33-4) is turned to be bearing in its boot-shaped cavity bottom of left shell (1-1) by bearing and lower end cap (1-2) is gone up and passes lower end cap (1-2), turn to the push pedal (33-5) clutch control lever shaft (33-4) with a side opening, upper symmetrically arranged the pawling of push pedal (33-5) is positioned at the both sides of block (33-6), tooth sector (33-2) is along when turning to the center of rotation of output shaft (33-3) to rotate, block (33-6) is stirred push pedal (33-5) and is turned to clutch control lever shaft (33-4) along turning to the center of rotation of clutch control lever shaft (33-4) to rotate, turn to the outside of clutch control lever shaft (33-4) that actuating linkage (2) is installed, regulating tie bar (4) is respectively with actuating linkage (2) with turn to clutch rocking arm (5) to be connected, clutch rocking arm (5) is turned to be connected with steering clutch bearing pin (28-1).
3. rice transplanting type transmission for vehicles according to claim 2, it is characterized in that: described block (33-6) is roller, tooth sector (33-2) is provided with roller shaft (33-7), roller is arranged on roller shaft (33-7), push pedal (33-5) is provided with the arc-shaped limit groove matched with roller in the inner side of pawling, and turns to the center of clutch control lever shaft (33-4) and turn to the center at the center of output shaft (33-3) and block (33-6) on the same line.
4. rice transplanting type transmission for vehicles according to claim 1, it is characterized in that: described transfer transmission shaft (30) middle part is provided with the shaft shoulder, the one end being arranged on free wheel device (29) its inner ring on transfer transmission shaft (30) is spacing by the shaft shoulder of transfer transmission shaft (30), the other end withstands on bearing by axle sleeve, transfer duplicate gear (28) is connected on free wheel device (29) by key, and free wheel device (29) two ends, outer ring are connected with transfer duplicate gear (28) respectively by back-up ring.
5. rice transplanting type transmission for vehicles according to claim 1, it is characterized in that: described transfer drive bevel gear (31) supports on transfer-case cover (1-5) by bearing, transfer output bevel gear wheel shaft (32) is supported on transfer-case cover (1-5) by bearing, and transfer output bevel gear wheel shaft (32) can oppositely be installed.
6. rice transplanting type transmission for vehicles according to claim 1, it is characterized in that: described transmission shaft (13) is Step Shaft, the packing holder that right shell body (1-4) is provided with bearing support and is adjacent, intermediate bearing and seal ring are arranged on transmission shaft (13) and right shell body (1-4), and selective sliding gear (22) and transfer selective sliding gear (24) respectively key are connected on transmission shaft (13).
7. the rice transplanting type transmission for vehicles as requested described in 1, it is characterized in that: described steering clutch (21) comprises steering clutch housing (21-2), sliding shaft sleeve (21-9) and a plurality of turn to clutch driven plate (21-7) and be disposed on to turn to turn to clutch friction plate (21-6) between clutch driven plate (21-7), semiaxis exports and is connected with steering clutch housing (21-2) by dynamic bevel gear (20), left-end point output shaft (6) is connected with respective sliding shaft sleeve (21-9) respectively with right end output shaft (8), clutch friction plate (21-6) is respectively turned to be connected with sliding shaft sleeve (21-9), clutch driven plate (21-7) is respectively turned to be connected with steering clutch housing (21-2), sliding shaft sleeve (21-9) end is connected with platen (21-4) by clutch bearing (21-5), butterfly spring (21-3) is also installed between platen (21-4) and steering clutch housing (21-2).
8. the rice transplanting type transmission for vehicles as requested described in 1, it is characterized in that: second point of described dynamic bevel gear (17) is bearing on left shell (1-1) and left steering clutch outer member (1-3) by bearing, second point of dynamic bevel gear (17) exports drive bevel gear (18) with semiaxis and arranges back-to-back, and the centerline axis parallel of the central axis of left-end point output shaft (6) and the second transfer bevel gear shaft.
9. the rice transplanting type transmission for vehicles as requested described in 1, it is characterized in that: described differential drive shaft (16-6) is in step-like, and differential drive shaft (16-6) outside is provided with splined shaft, inside the splined shaft of differential drive shaft (16-6), there is axle bed, bearing is arranged on the bearing support in the axle bed of differential drive shaft (16-6) and right shell body (1-4), and the outer side surface of bearing support is the confined planes of braking driven plate (26-2).
CN201410240703.1A 2014-05-30 2014-05-30 Rice transplanting type transmission for vehicles Active CN105276119B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107366718A (en) * 2017-07-19 2017-11-21 重庆墨龙机械有限公司 Three-dimensional exports transmission mechanism

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Publication number Priority date Publication date Assignee Title
JPH11155319A (en) * 1997-11-27 1999-06-15 Mitsubishi Agricult Mach Co Ltd Sulky type traveling farming machine
JP2001301480A (en) * 2000-04-21 2001-10-31 Iseki & Co Ltd Power transmission device for traveling vehicle
CN1572567A (en) * 2003-06-10 2005-02-02 井关农机株式会社 Driving motor for running machine
KR20100002788A (en) * 2008-06-30 2010-01-07 대동공업주식회사 Passenger type paddy field tiller
CN103277478A (en) * 2013-05-08 2013-09-04 姚捷 Combined-harvester four-gear gearbox assembly
CN203836115U (en) * 2014-05-30 2014-09-17 常州东风农机集团有限公司 Vehicle transmission for rice transplanter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11155319A (en) * 1997-11-27 1999-06-15 Mitsubishi Agricult Mach Co Ltd Sulky type traveling farming machine
JP2001301480A (en) * 2000-04-21 2001-10-31 Iseki & Co Ltd Power transmission device for traveling vehicle
CN1572567A (en) * 2003-06-10 2005-02-02 井关农机株式会社 Driving motor for running machine
KR20100002788A (en) * 2008-06-30 2010-01-07 대동공업주식회사 Passenger type paddy field tiller
CN103277478A (en) * 2013-05-08 2013-09-04 姚捷 Combined-harvester four-gear gearbox assembly
CN203836115U (en) * 2014-05-30 2014-09-17 常州东风农机集团有限公司 Vehicle transmission for rice transplanter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107366718A (en) * 2017-07-19 2017-11-21 重庆墨龙机械有限公司 Three-dimensional exports transmission mechanism
CN107366718B (en) * 2017-07-19 2023-02-07 重庆墨龙机械有限公司 Three-way output transmission mechanism

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