CN107630985A - A kind of chain stretching device and rotating rotary cultivator - Google Patents
A kind of chain stretching device and rotating rotary cultivator Download PDFInfo
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- CN107630985A CN107630985A CN201710995696.XA CN201710995696A CN107630985A CN 107630985 A CN107630985 A CN 107630985A CN 201710995696 A CN201710995696 A CN 201710995696A CN 107630985 A CN107630985 A CN 107630985A
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- 229910000831 Steel Inorganic materials 0.000 description 8
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Abstract
The invention discloses a kind of chain stretching device and rotating rotary cultivator, including rotatable chain tension arm and adjusting means, adjusting means drive chain tensioner arm rotates, and chain tension arm is changed between the first tension position and the second tension position；First chain tension gear, the second chain tension gear, the 3rd chain tension gear are installed on chain tension arm, the first chain tension gear and the second chain tension gear and the 3rd chain tension gear are triangularly arranged；Second chain tension gear is located at the following periphery of chain, and the 3rd chain tension gear is located at the top periphery of chain, and the first chain tension gear is located among the following and top of chain；When chain tension arm turns to the first tension position, the first chain tension gear jacks up the top of chain, and the 3rd chain tension gear depresses the top of chain；When chain tension arm turns to the second tension position, the first chain tension gear jacks up the following of chain, and the second chain tension gear depresses the following of chain.The present invention can realize that farming industry is applied in rotating, and forward and reverse tensioning is carried out to chain.
Description
Technical field
The present invention relates to field of agricultural machinery, more particularly to a kind of chain stretching device and rotating rotary cultivator.
Background technology
Rotary cultivator is a kind of by power-actuated ground-working equipment, cuts soil, hack ability is strong, and one-stop operation can reach plough
The effect of rake several times, grading is soft after ploughing, and can rob farming season, saves labour.With the horizontal continuous improvement of agricultural science and technology, lead to
The rotary tillage for crossing rotary cultivator completion agricultural land soil has become usual way.It is well known that rotary cultivator operating principle is to utilize rotary tillage
Mud (or soil block) scarifying is smashed to pieces and realizes ploughing and weeding purpose by cutter shaft when rotating, and is single rotation in the direction of rotation of existing rotary knife axis
Transhipment is dynamic, it is impossible to realizes forward and reverse rotation.Unidirectional chain can only be also realized in the transmission case of existing driving rotary knife axis rotation
Tensioning, it is impossible to realize the chain tension of forward and reverse rotation.
In the dynamical system part of existing rotary cultivator, a kind of agricultural machinery power if patent publication No. is CN205755304U passes
Defeated system, including gearbox, engine, transmission case, frame, engine lateral arrangement, one group of power of engine are passed by belt
To gearbox, driving rotary cultivator walking.Another group of power of engine is transmitted to transmission case by belt, and driving rotary cultivator attachment moves,
Transmission case is arranged in centre position, and the dynamic clutch between engine and transmission case is controlled by multi link strainer.Transmission
Case intermediate arrangement causes middle rotary blade to have vacant position, intermediate soil can not rotary tillage the problems such as.Other existing rotary cultivator is in plantation soil
During earth, due to power arrangement and machine center problem, machine center shifting to the rear, it is unfavorable for the stable farming of machinery, causes to plough
Depth is uneven and out-of-flatness.In addition in existing multi link strainer, action bars vibration is big, and dynamical system noise is big,
It is inconvenient for operation, the problems such as operating difficulties.
In the creeper undercarriage part of existing rotary cultivator, using letter between the driving wheel and rotary shaft of creeper undercarriage
Single bolt connection, in the process of walking, driving wheel is easily released creeper undercarriage, and bolt and driving wheel are absorbed in paddy field,
Rotary cultivator is caused not walk.
In the rotary cultivator attachment part of existing rotary cultivator, rotary cultivator attachment can not realize oscilaltion, that is, can not adjust automatically
Rotary tillage depth is saved, backward on throwing to rotary tillage strike-off stick, rotary tillage strike-off stick is frequently hit soil block after rotary knife axis incision soil
And bob, noise are very big.
The content of the invention
In view of this, in order to realize rotary cultivator positive and negative rotation ploughing work function and chain rotating tensioning, the present invention carries
A kind of chain stretching device and rotating rotary cultivator are supplied.
On the one hand, the invention provides a kind of chain stretching device, including rotatable chain tension arm and adjusting means,
Adjusting means drive chain tensioner arm rotates, and chain tension arm is changed between the first tension position and the second tension position；
First chain tension gear, the second chain tension gear, the 3rd chain tension gear, the first chain tension are installed on chain tension arm
Wheel and the second chain tension gear and the 3rd chain tension gear are triangularly arranged；Second chain tension gear is located at the following outer of chain
Enclose, the 3rd chain tension gear is located at the top periphery of chain, and the first chain tension gear is located among the following and top of chain；When
When chain tension arm turns to the first tension position, the first chain tension gear jacks up the top of chain, the 3rd chain tension wheel load
The top of lower chain；When chain tension arm turns to the second tension position, the first chain tension gear jacks up the following of chain, the
Two chain tension gears depress the following of chain.
Further, adjusting means includes the first adjusting yoke and the second adjusting yoke, is installed on the first adjusting yoke
There are the first regulation spring and the first adjusting nut, the second regulation spring and the second regulation spiral shell are installed on the second adjusting yoke
It is female；First adjusting nut is screwed on the first adjusting yoke, and the first adjusting nut compresses the first regulation spring；Second adjusting nut is twisted
On the second adjusting yoke, the second adjusting nut compresses the second regulation spring；
First adjusting yoke is connected with chain tension arm side, and the second adjusting yoke is connected with chain tension arm opposite side；
It can rotate chain tension arm by adjusting the first adjusting nut and the second adjusting nut, chain tension arm is tensioned position first
Put and changed between the second tension position.
On the other hand, the invention provides a kind of rotating rotary cultivator, including above-mentioned chain stretching device, chain tension
Device is arranged in transmission case.
In order that power system architecture is compact, power transmission is steady, in further technical scheme, including rotary cultivator bottom
Disk and rotary cultivator attachment, rotary cultivator attachment are arranged on rotary cultivator chassis rear portion, and rotary cultivator chassis includes creeper undercarriage and dynamical system
System and chassis, dynamical system and creeper undercarriage are arranged on chassis；Dynamical system include engine, the first transmission mechanism,
Second transmission mechanism, engine drive creeper undercarriage by the first transmission mechanism, and engine is driven by the second transmission mechanism
Dynamic rotary cultivator attachment, engine lateral arrangement；
First transmission mechanism includes the first belt, the first belt pulley, gearbox, the first tensioning wheel, the first power transmission shaft, starts
Machine a part of power is successively by the first belt, the first belt pulley, gearbox, the first power transmission shaft, creeper undercarriage both sides
Driving wheel, creeper undercarriage is set to walk, the first tensioning wheel is pressed on the first belt, and the first tensioning wheel makes the first belt tension；
Second transmission mechanism includes the second belt, the second belt pulley, second driving shaft, rotating gearbox, transmission case, the
Two tensioning wheels, strainer, the second belt pulley are arranged on the input shaft of rotating gearbox；Engine another part power according to
It is secondary to pass through the second belt, the second belt pulley, rotating gearbox, second driving shaft, transmission case, the rotary knife axis of rotary cultivator attachment,
Make rotary knife axis positive and negative rotation, the second tensioning wheel is pressed on the second belt, and strainer drives the second tensioning wheel to adjust the second skin
Band rate of tension makes power engage and separate；
Transmission case includes input sprocket, chain, output chain gear, and input sprocket is connected with second driving shaft, output chain gear and
Rotary knife axis are connected, and input sprocket is connected with output chain gear by chain.
In order to engage and separate the second transmission mechanism power, it is easy to operate and laborsaving, reduction operation vibration, solution long distance
From operation the problems such as, in further technical scheme, strainer include support, action bars, pull bar, swing arm, the first pivoted arm,
Second pivoted arm, support are fixed on chassis, and swing arm both ends are connected with the second tensioning wheel and chassis respectively, the first pivoted arm and second turn
Arm is connected by rotating shaft, and the first pivoted arm is connected with action bars, and pull bar both ends are connected with the second pivoted arm and swing arm respectively；Action bars leads to
Crossing the first pivoted arm drives the second pivoted arm to rotate, and the second pivoted arm drives the second tensioning wheel to swing up and down by pull bar and swing arm；Pull bar
Pull-rod spring including the bar portion positioned at both ends and positioned at centre, pull-rod spring both ends are connected with the bar portion at both ends respectively.
In order to adjust rotary tillage depth and reduce noise, in further technical scheme, rotary cultivator attachment include rotary tillage frame,
Rotary knife axis, rotary tillage strike-off stick, caging bolt, the 3rd adjusting yoke, (the first back-moving spring, second back-moving spring, drive cylinder；
Rotary tillage frame is connected with chassis, and drive cylinder both ends are connected with rotary tillage frame and chassis respectively, drive cylinder driving rotary tillage frame
Lifting；Rotary knife axis are arranged in rotary tillage frame, and transmission case is arranged on rotary tillage shell outside, and rotary tillage strike-off stick is cut with scissors with rotary tillage frame
Connect；Caging bolt is fixed in rotary tillage frame, and when rotary tillage frame rises to extreme position, caging bolt is resisted against the chassis upper limit
Rotary tillage frame processed rises；3rd adjusting yoke one end is hinged with rotary tillage strike-off stick, and the 3rd adjusting yoke other end is free end；The
Three adjusting yokes upwardly extend through the journal stirrup in rotary tillage frame, and (the first back-moving spring and second back-moving spring are enclosed on the 3rd regulation
On pull bar, (the first back-moving spring is resisted against below the journal stirrup in rotary tillage frame, and second back-moving spring is resisted against in rotary tillage frame
Above journal stirrup.
In order to prevent driving wheel from being released with connecting shaft, make driving wheel reliable with being connected axis connection, in further technical side
In case, the first transmission mechanism includes fixing bolt, alignment pin, back-up ring, lock washer with tongue at outside；Driving wheel and the first power transmission shaft connect
Connect, in first power transmission shaft one end insertion driving wheel centre bore；The first screwed hole, the first bearing pin are offered on the first power transmission shaft
Hole；The first bolt hole, the second pin shaft hole are offered on back-up ring；Alignment pin is inserted in the first pin shaft hole and the second pin shaft hole, is made
Back-up ring is pressed on the hole end surface of driving wheel center；Open up jagged, be provided with lock washer with tongue at outside outer on the circumference of back-up ring
Tongue, the outer tongue downward bending of lock washer with tongue at outside are inserted in the breach of back-up ring；Segmentation has multiple roll on lock washer with tongue at outside
Curved external ear, lock washer with tongue at outside are pressed on back-up ring；Fixing bolt is screwed into the first screwed hole and the first bolt hole, makes the first biography
Moving axis is connected with driving wheel, and the upward bent buckling of external ear of lock washer with tongue at outside is on fixing bolt head.
Further, rotating gearbox includes input shaft, output shaft, jackshaft, the changement being arranged on housing,
Input shaft and output shaft and jackshaft are triangularly arranged；Input gear is installed on input shaft, is provided with output shaft
Output gear and contra-rotating output gears are rotated forward, idler gear is installed on jackshaft, output gear is rotated forward and idler gear is normal
Engagement；When input gear is rotating forward gear, input gear engages with idler gear, the power of input shaft by input gear,
Idler gear, rotating forward output gear pass to output shaft, realize and rotate forward；When input gear is inverting gear, input gear with
Contra-rotating output gears engage, and the power of input shaft passes to output shaft by input gear, contra-rotating output gears, realizes reversion；
Changement is stirred input gear and moved from rotating forward gear and anti-converting displacement.
Further, changement includes handle, pulling axis, driving lever, shift fork, and pulling axis is arranged on housing, handle and pulling axis
Connection, driving lever both ends are connected with pulling axis and shift fork respectively, and shift fork is connected with input gear；Shift fork is offered in one end of driving lever
Groove, shift fork are arranged on fork slot, and shift fork can slide up and down along fork slot.
Further, including the first clamping screw, the second clamping screw, the 3rd clamping screw, the driving lever other end pass through
Three clamping screws are fixed on pulling axis, and handle one end is fixed on pulling axis by the second clamping screw, and the handle other end passes through
One clamping screw is fixed on housing.
Advantage is compared with prior art for rotating gearbox and rotating rotary cultivator provided by the invention：
1st, power system architecture is compact, and power transmission is steady, and noise is small, and tilling depth can automatically adjust, and tilling depth is equal
Even, arable land is smooth, it is possible to achieve rotating is ploughed.
2nd, rotating gearbox designs are compact, and changement clever structure, practical, cost is low.
3rd, chain stretching device clever structure, chain stretching device can realize that chain rotating is tensioned.
4th, strainer clever structure, easy to operate, laborsaving and noise and vibration is small.In engine and the second transmission mechanism
It is steady reliable in power separation and engaging process.
5th, driving wheel is reliable with being connected axis connection, it is not easy to releases, rotary tillage machine operation is very safe.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of rotary cultivator chassis structure schematic diagram of the present invention；
Fig. 2 is Fig. 1 top view；
Fig. 3 is the rotating gearbox designs schematic diagram in Fig. 2；
Fig. 4 is Fig. 3 middle gear drive mechanism schematic diagrames；
Fig. 5 is changement schematic diagram in Fig. 3；
Fig. 6 is the left side schematic views of Fig. 5；
Fig. 7 is transmission case structural representation in Fig. 2；
Fig. 8 is the driving wheel structure schematic diagram in Fig. 2；
Fig. 9 is the back-up ring structural representation in Fig. 8；
Figure 10 is the lock washer with tongue at outside structural representation in Fig. 8；
The lock washer with tongue at outside that Figure 11 is Figure 10 locks fixing bolt schematic diagram；
Figure 12 is the reel structure schematic diagram in Fig. 2；
Figure 13 is the reel use state diagram in Fig. 2.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1 to figure 13, the present invention preferred a kind of chain stretching device and rotating rotary cultivator.It is of the present invention
The be hinged attachment structure for referring to mutually to rotate.
As shown in figure 1, a kind of rotating rotary cultivator, including rotary cultivator chassis and rotary cultivator attachment 5, rotary cultivator attachment 5 are arranged on
Rotary cultivator chassis rear portion, balancing weight (not shown) is installed in rotary cultivator chassis front portion.Before balancing weight can make rotary cultivator
Left-right balance afterwards, ensure rotary cultivator smooth operations, make tilling depth uniform, arable land is smooth.
As depicted in figs. 1 and 2, in order that power system architecture is compact, power transmission is steady.Rotary cultivator chassis includes crawler belt
Walking mechanism 10 and dynamical system and chassis 26, dynamical system and creeper undercarriage 10 are arranged on chassis 26；Dynamical system
Including engine 23, the first transmission mechanism, the second transmission mechanism, engine 23 drives crawler travel machine by the first transmission mechanism
Structure 10, engine 23 drive rotary cultivator attachment 5, the lateral arrangement of engine 23 by the second transmission mechanism.
First transmission mechanism includes the first belt 14, the first belt pulley 11, gearbox 25, the first tensioning wheel 21, first and passed
Moving axis 28,23 a part of power of engine is successively by the first belt 14, the first belt pulley 11, gearbox 25, the first power transmission shaft
28th, the driving wheel 27 of the both sides of creeper undercarriage 10, makes creeper undercarriage 10 walk, and the first tensioning wheel 24 is pressed in the first belt
On 14, the first tensioning wheel 24 is tensioned the first belt 14, and spring is connected between the first tensioning wheel 24 and chassis 1.Gearbox
Two output shafts are provided with 25, two output shafts are connected with the first power transmission shaft 28 of the left and right sides respectively.In gearbox 25
Clutch control dynamic clutch.
Second transmission mechanism include the second belt 13, the second belt pulley 12, second driving shaft 29, rotating gearbox 30,
Transmission case 55, the second tensioning wheel 22, strainer, the input shaft 300 of rotating gearbox 30 are connected (such as with the second belt pulley 12
Shown in Fig. 4).Another part power of engine 23 is successively by the second belt 13, the second belt pulley 12, second driving shaft 29, just
Invert gearbox 30, transmission case 55, the rotary knife axis of rotary cultivator attachment 5, in engine 23 a part of power by the second belt 13,
After rotating gearbox 30, transmission case 55 realize three-step gear shift, make rotary knife axis positive and negative rotation.
Second driving shaft 29 is transversely arranged on right side, and transmission case 55 is arranged on the right side of rotary cultivator attachment 5, rotary cultivator attachment 5
Left side does not have transmission case, and transmission case 55 uses chain drive.The single-sided arrangement of transmission case 55 solves the intermediate arrangement of transmission case 55 and made
Had vacant position into middle rotary blade, intermediate soil can not rotary tillage the problems such as.Second tensioning wheel 22 is pressed on the second belt 13, tensioning device
Structure drives the second tensioning wheel 22 adjustment rate of tension of the second belt 13 power is engaged and is separated.
As shown in figure 1, in order to engage and separate the second transmission mechanism power, be easy to operate with it is laborsaving, reduce operation and shake
It is dynamic, solve the problems such as remote-controlled operation, strainer of the invention includes support 16, action bars 20, pull bar 19, swing arm 15, the
One pivoted arm 18, the second pivoted arm 17, support 16 are fixed on chassis 26, the both ends of swing arm 15 respectively with the second tensioning wheel 22 and chassis 26
Connection, the first pivoted arm 18 are connected with the second pivoted arm 17 by rotating shaft, and the first pivoted arm 18 is connected with action bars 20, the both ends of pull bar 19 point
It is not connected with the second pivoted arm 17 and swing arm 15；Action bars 20 drives the second pivoted arm 17 to rotate by the first pivoted arm 18, the second pivoted arm
17 drive the second tensioning wheel 22 to swing up and down by pull bar 19 and swing arm 15；Pull bar 19 is included in being located at the bar portion at both ends and being located at
Between pull-rod spring, pull-rod spring both ends are connected with the bar portion at both ends respectively.Pull bar 19 is flexible, reduces action bars vibration.
As shown in figure 1, in order to adjust rotary tillage depth and reduce noise, in further technical scheme, rotary cultivator attachment 5 wraps
Include rotary tillage frame 51, rotary knife axis (not shown), rotary tillage strike-off stick 50, caging bolt 56, the 3rd adjusting yoke 52, first
Back-moving spring 53, second back-moving spring 54, drive cylinder 31；Rotary tillage frame 51 is connected with chassis 26, the both ends of drive cylinder 31 point
It is not connected with rotary tillage frame 51 and chassis 26, drive cylinder 31 drives rotary tillage frame 51 to lift, and adjusts rotary tillage depth.Due to driving
Oil cylinder 31 can absorb the up-down vibration of rotary cultivator attachment 5, reduce noise.
Rotary knife axis are arranged in rotary tillage frame 51, and transmission case 55 is arranged on the outside of rotary tillage frame 51, rotary tillage strike-off stick 50
It is be hinged with rotary tillage frame 51；Caging bolt 56 is fixed in rotary tillage frame 51, when rotary tillage frame 51 rises to extreme position, limit
Position bolt 56 is resisted against limitation rotary cultivator frame 51 on chassis 26 and risen, and prevents rotary cultivator attachment 5 from continuing to rise.
3rd adjusting yoke 52 can adjust the height of rotary tillage strike-off stick 50, the one end of the 3rd adjusting yoke 52 and rotary tillage strike-off stick
50 is be hinged, and the other end of the 3rd adjusting yoke 52 is free end；3rd adjusting yoke 52 is upward through the journal stirrup in rotary tillage frame 51
Extension, (the first back-moving spring 53 and second back-moving spring 54 are enclosed on the 3rd adjusting yoke 52, and (the first back-moving spring 53 is resisted against
Below journal stirrup in rotary tillage frame 51, second back-moving spring 54 is resisted against above the journal stirrup in rotary tillage frame 51.Due to first multiple
Position spring 53 and second back-moving spring are arranged about 54, can be reduced and be collided caused by the bob of rotary tillage strike-off stick 50, be reduced
Mechanical noise.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, the invention provides a kind of rotating gearbox 30, including on housing
Input shaft 300, output shaft 301, jackshaft 302, changement 303, input shaft 300 and output shaft 301 and jackshaft 302 it is flat
Row arrangement, input shaft 300 and the axial connecting line of output shaft 301 and jackshaft 302 are triangular in shape.
As shown in figure 4, being provided with input gear 3000 on input shaft 300, rotating forward output is installed on output shaft 301
Gear 3010 and contra-rotating output gears 3011, are provided with idler gear 3020 on jackshaft 302, rotate forward output gear 3010 with
Idler gear 3020 often engages.When input gear 3000 is rotating forward gear, input gear 3000 engages with idler gear 3020
(as shown in Figure 4), the power of input shaft 300 are transmitted by input gear 3000, idler gear 3020, rotating forward output gear 3010
To output shaft 301, realize that output shaft 301 rotates forward.
As shown in figure 4, when input gear 3000 moves to the left, input gear 3000 departs from idler gear 3020 to be nibbled
Close, input gear 3000 engages with contra-rotating output gears 3011.When now input gear 3000 is in reversion gear, input shaft
300 power passes to output shaft 301 by input gear 3000, contra-rotating output gears 3011, realizes that output shaft 301 inverts；
Changement 303 is stirred input gear 3000 and moved, and input gear 3000 is engaged with contra-rotating output gears 3011 and (as inverts
Gear), or input gear 3000 is engaged with idler gear 3020 and (is as rotated forward gear).When input gear 3000 neither with
Contra-rotating output gears 3011 engage, and are not also engaged with idler gear 3020, and now rotating gearbox is in neutral position.
As shown in Figure 5 and Figure 6, changement 303 includes handle 3030, pulling axis 3031, driving lever 3032, shift fork 3033, dials
Axle 3031 be arranged on housing on, handle 3030 is connected with pulling axis 3031, the both ends of driving lever 3032 respectively with pulling axis 3031 and shift fork
3033 connections, shift fork 3033 are connected with input gear 3000；Fork slot 3037, shift fork 3033 are offered in one end of driving lever 3032
On fork slot 3037, shift fork 3033 can slide up and down along fork slot 3037.The other end of driving lever 3032 passes through the 3rd locking
Bolt 3034 is fixed on pulling axis 3031, and the one end of handle 3030 is fixed on pulling axis 3031 by the second clamping screw 3035, hand
The other end of handle 3030 is fixed on housing by the first clamping screw 3036.
When needing regulation stall, unscrew the first clamping screw 3036 first, then rotary handle 3030, the band of handle 3030
Dynamic driving lever 3032 is rotated around the axis of pulling axis 3031, and now shift fork 3033 is limited by input gear 3000, and shift fork 3033 is along dialling
Fork pockets 3037 slides up and down, and shift fork 3033 drives input gear 3000 to move linearly.
As shown in fig. 7, transmission case 55 includes input sprocket 550, chain 552, output chain gear 551, chain stretching device, it is defeated
Enter sprocket wheel 550 to be connected with second driving shaft 29, output chain gear 551 is connected with rotary knife axis, input sprocket 550 and output chain gear
551 are connected by chain 552.The diameter of input sprocket 550 is less than the diameter of output chain gear 551, can be realized and subtracted by transmission case 55
Speed.
The invention provides a kind of chain stretching device, chain stretching device includes the rotatable He of chain tension arm 553
Adjusting means, adjusting means drive chain tensioner arm 553 rotate, and make chain tension arm 553 in the first tension position and second
Changed between tight position；Be provided with chain tension arm 553 first chain tension gear 5531, the second chain tension gear 5530,
3rd chain tension gear 5532, the first chain tension gear 5531 and the second chain tension gear 5530 and the 3rd chain tension gear 5532
Pivot line is triangular in shape；Second chain tension gear 5530 is located at following 5520 periphery of chain, the 3rd chain tension gear
5532 are located in following 5520 and top 5521 of chain positioned at the periphery of top 5521 of chain, the first chain tension gear 5531
Between.
Adjusting means includes the first adjusting yoke 555 and the second adjusting yoke 554, is installed on the first adjusting yoke 555
There are the first regulation spring 558 and the first adjusting nut 559, the He of the second regulation spring 556 is installed on the second adjusting yoke 554
Second adjusting nut 557；First adjusting nut 559 is screwed on the first adjusting yoke 555, and the first adjusting nut 559 compresses first
Adjust spring 558；Second adjusting nut 557 is screwed on the second adjusting yoke 554, and the second adjusting nut 557 compresses the second regulation
Spring 556.
Hook the connection of the side lower end of chain tension arm 553, the lower end of the second adjusting yoke 554 in the lower end of first adjusting yoke 555
Hook the opposite side lower end of chain tension arm 553；It can make chain by adjusting the first adjusting nut 559 and the second adjusting nut 557
Tensioner arm 553 rotates, and chain tension arm 553 is changed between the first tension position and the second tension position.
As shown in fig. 7, (being turned clockwise) when input sprocket 550 rotates forward, now following the 5520 of chain are
Pilled-in selvedge, following 5520 be slack list, and chain tension arm 553 turns to the first tension position, and the first chain tension gear 5531 jacks up chain
The top 5521 of bar, the 3rd chain tension gear 5532 depress the top 5521 of chain.
When input sprocket 550 reversely rotates (rotate counterclockwise), now the top 5521 of chain is pilled-in selvedge, below
5520 be slack list.Need to be tensioned to following 5520, chain tension arm 553 needs to turn to the second tension position.Unscrew
One adjusting nut 559, decline the first adjusting yoke 555, tighten the second adjusting nut 557, make on the second adjusting yoke 554
Rise, now the rotate counterclockwise of chain tension arm 553, conversely can make chain tension arm 553 turn clockwise.First chain tension
Wheel 5531 jacks up following the 5520 of chain, and the second chain tension gear 5530 depresses following the 5520 of chain.Realize under chain
Side 5520 is tensioned.
As shown in Fig. 8, Fig. 9, Figure 10, Figure 11, in order to prevent driving wheel 27 from being released with the first power transmission shaft 28, make driving wheel 27
It is connected with the first power transmission shaft 28 reliably, fastening locking combining structure the invention provides a kind of driving wheel includes the first power transmission shaft
28th, fixing bolt 274, alignment pin 275, back-up ring 272, lock washer with tongue at outside 273；Driving wheel 27 is connected with the first power transmission shaft 28,
In the one end of first power transmission shaft 28 insertion centre bore of driving wheel 27；The first screwed hole, the first pin are offered on the first power transmission shaft 28
Axis hole；The first bolt hole 2720, the second pin shaft hole 2721 are offered on back-up ring 272；Alignment pin 275 insert the first pin shaft hole and
In second pin shaft hole 2721, back-up ring 272 is set to be pressed on the center hole end surface of driving wheel 27；Offered on the circumference of back-up ring 272 scarce
Mouthfuls 2722, outer tongue 2731 is provided with lock washer with tongue at outside 273, on lock washer with tongue at outside 273 segmentation have it is multiple can bending
External ear 2732, lock washer with tongue at outside 273 is pressed on back-up ring 272, the downward bending of outer tongue 2731 insertion of lock washer with tongue at outside 273
In the breach 2722 of back-up ring.The 5th bolt hole 2730 is offered at the center of lock washer with tongue at outside 273, fixing bolt 274 is screwed into
In one screwed hole and the first bolt hole 2720, the 5th bolt hole 2730, the first power transmission shaft 28 is set to be connected with driving wheel 27, outer tongue stops
The 2732 upward bent buckling of external ear of washer is on the head of fixing bolt 274.Fixing bolt 274 and the fixed drive wheel of alignment pin 275
27 and first power transmission shaft 28, it can prevent driving wheel 27 from mutually being rotated with the first power transmission shaft 28.Lock washer with tongue at outside 273 covers fixed
Position pin 275, prevents alignment pin 275 from releasing.The outer tongue 2731 of lock washer with tongue at outside is stuck in the breach 2722 of back-up ring, prevents outer tongue
Stop washer 273 loosens.The 2732 upward bent buckling of external ear of lock washer with tongue at outside prevents from fixing spiral shell on the head of fixing bolt 274
Bolt 274 loosens.
As shown in figure 12, in order to realize that rotary cultivator is got rid of poverty, make rotary cultivator that there is self-rescue function.The rotary cultivator of the present invention is automatic
Escaping apparatus includes two reels 24 of saving oneself, two driving wheels of the reel 24 respectively with the left and right sides of creeper undercarriage 10 of saving oneself
27 connections, reel 24 of saving oneself include bobbin trunk 240, two reel baffle plates 241, fixation rack for steel wire rope 242, two reel baffle plates
241 intervals are fixed in bobbin trunk 240, and fixation rack for steel wire rope 242 is fixed in bobbin trunk 240, fixation rack for steel wire rope 242
Between two reel baffle plates 241；Bobbin trunk 240 is connected with driving wheel 27 by bearing pin 243, is inserted with bearing pin 243
First latch 244 and the second latch 245, the middle part of the first latch 244 insertion bearing pin 243, the second latch 245 insertion bearing pin 243 end
Portion；First latch 244 is located in the inner chamber of driving wheel 27.
As shown in figure 13, when saving oneself, in the hook that will save oneself first insertion field, saving oneself on reel 24 around upper steel wire rope
32, the one end of steel wire rope 32 is fixed on fixation rack for steel wire rope 242, and the other end of steel wire rope 32, which is fixed on, saves oneself on hook 33.Work as rotary tillage
When machine is walked forward, reel 24 of saving oneself rotates, and steel wire rope 32 hauls rotary cultivator and got rid of poverty.
Technology not described above is the common knowledge of those skilled in the art.It the foregoing is only the preferable reality of the present invention
Example is applied, is not intended to limit the invention, within the spirit and principles of the invention, any modification for being made, is equally replaced
Change, improve, should be included in the scope of the protection.
Claims (10)
1. a kind of chain stretching device, it is characterised in that including rotatable chain tension arm and adjusting means, adjusting means is driven
Dynamic chain tension arm rotates, and chain tension arm is changed between the first tension position and the second tension position；In chain tension
First chain tension gear, the second chain tension gear, the 3rd chain tension gear, the first chain tension gear and the second chain are installed on arm
Article tensioning wheel and the 3rd chain tension gear are triangularly arranged；Second chain tension gear is located at the following periphery of chain, the 3rd chain
Bar tensioning wheel is located at the top periphery of chain, and the first chain tension gear is located among the following and top of chain；Work as chain tension
When arm turns to the first tension position, the first chain tension gear jacks up the top of chain, the 3rd chain tension gear pressure chain
Top；When chain tension arm turns to the second tension position, the first chain tension gear jacks up the following of chain, the second chain
Bearing up pulley depresses the following of chain.
2. chain stretching device according to claim 1, it is characterised in that adjusting means includes the first adjusting yoke and the
Two adjusting yokes, the first regulation spring and the first adjusting nut are installed on the first adjusting yoke, on the second adjusting yoke
Second regulation spring and the second adjusting nut are installed；First adjusting nut is screwed on the first adjusting yoke, the first adjusting nut
Compress the first regulation spring；Second adjusting nut is screwed on the second adjusting yoke, and the second adjusting nut compresses the second regulation spring；
First adjusting yoke is connected with chain tension arm side, and the second adjusting yoke is connected with chain tension arm opposite side；Pass through
Adjust the first adjusting nut and the second adjusting nut can rotate chain tension arm, make chain tension arm in the first tension position and
Changed between second tension position.
3. a kind of rotating rotary cultivator, it is characterised in that including the chain tension dress as described in claim 1 to 2 any one
Put, chain stretching device is arranged in transmission case.
4. rotating rotary cultivator according to claim 3, it is characterised in that including rotary cultivator chassis and rotary cultivator attachment, rotation
Plowing device is arranged on rotary cultivator chassis rear portion, and rotary cultivator chassis includes creeper undercarriage and dynamical system and chassis, dynamical system
System and creeper undercarriage are arranged on chassis；Dynamical system includes engine, the first transmission mechanism, the second transmission mechanism, hair
Motivation drives creeper undercarriage by the first transmission mechanism, and engine drives rotary cultivator attachment by the second transmission mechanism, started
Machine lateral arrangement；
First transmission mechanism includes the first belt, the first belt pulley, gearbox, the first tensioning wheel, the first power transmission shaft, engine one
Partial power passes through the driving of the first belt, the first belt pulley, gearbox, the first power transmission shaft, creeper undercarriage both sides successively
Wheel, makes creeper undercarriage walk, the first tensioning wheel is pressed on the first belt, and the first tensioning wheel makes the first belt tension；
Second transmission mechanism include the second belt, the second belt pulley, second driving shaft, rotating gearbox, transmission case, second
Bearing up pulley, strainer, the second belt pulley are arranged on the input shaft of rotating gearbox；Engine another part power passes through successively
The second belt, the second belt pulley, rotating gearbox, second driving shaft, transmission case, the rotary knife axis of rotary cultivator attachment are crossed, make rotation
Cutter shaft positive and negative rotation is ploughed, the second tensioning wheel is pressed on the second belt, and strainer drives the second tensioning wheel to adjust the second belt
Tightness makes power engage and separate；
Transmission case includes input sprocket, chain, output chain gear, and input sprocket is connected with second driving shaft, output chain gear and rotary tillage
Cutter shaft is connected, and input sprocket is connected with output chain gear by chain.
5. rotating rotary cultivator according to claim 4, it is characterised in that strainer includes support, action bars, drawing
Bar, swing arm, the first pivoted arm, the second pivoted arm, support are fixed on chassis, and swing arm both ends connect with the second tensioning wheel and chassis respectively
Connect, the first pivoted arm and the second pivoted arm are connected by rotating shaft, and the first pivoted arm is connected with action bars, pull bar both ends respectively with the second pivoted arm
Connected with swing arm；Action bars drives the second pivoted arm to rotate by the first pivoted arm, and the second pivoted arm drives second by pull bar and swing arm
Tensioning wheel is swung up and down；Pull bar include positioned at both ends bar portion and positioned at centre pull-rod spring, pull-rod spring both ends respectively with
The bar portion connection at both ends.
6. rotating rotary cultivator according to claim 4, it is characterised in that rotary cultivator attachment includes rotary tillage frame, rotary blade
Axle, rotary tillage strike-off stick, caging bolt, the 3rd adjusting yoke, (the first back-moving spring, second back-moving spring, drive cylinder；Rotary cultivator
Frame is connected with chassis, and drive cylinder both ends are connected with rotary tillage frame and chassis respectively, drive cylinder driving rotary tillage frame lifting；Rotation
Plough cutter shaft to be arranged in rotary tillage frame, transmission case is arranged on rotary tillage shell outside, and rotary tillage strike-off stick is hinged with rotary tillage frame；It is spacing
It is bolted in rotary tillage frame, when rotary tillage frame rises to extreme position, caging bolt, which is resisted against on chassis, limits rotary tillage
Frame rises；3rd adjusting yoke one end is hinged with rotary tillage strike-off stick, and the 3rd adjusting yoke other end is free end；3rd regulation
Pull bar upwardly extends through the journal stirrup in rotary tillage frame, and (the first back-moving spring and second back-moving spring are enclosed on the 3rd adjusting yoke
On, (the first back-moving spring is resisted against below the journal stirrup in rotary tillage frame, and second back-moving spring is resisted against the journal stirrup in rotary tillage frame
Top.
7. rotating rotary cultivator according to claim 4, it is characterised in that the first transmission mechanism includes fixing bolt, determined
Position pin, back-up ring, lock washer with tongue at outside；Driving wheel and the first transmission axis connection, first power transmission shaft one end insertion driving wheel centre bore
It is interior；The first screwed hole, the first pin shaft hole are offered on the first power transmission shaft；The first bolt hole, the second pin are offered on back-up ring
Axis hole；Alignment pin is inserted in the first pin shaft hole and the second pin shaft hole, back-up ring is pressed on the hole end surface of driving wheel center；In back-up ring
Open up jagged on circumference, be provided with outer tongue on lock washer with tongue at outside, the outer tongue downward bending insertion gear of lock washer with tongue at outside
In the breach of circle；On lock washer with tongue at outside segmentation have it is multiple can bending external ear, lock washer with tongue at outside is pressed on back-up ring；It is fixed
Bolt is screwed into the first screwed hole and the first bolt hole, the first power transmission shaft is connected with driving wheel, the external ear of lock washer with tongue at outside
Upward bent buckling is on fixing bolt head.
8. rotating rotary cultivator according to claim 5, it is characterised in that rotating gearbox, it is characterised in that including
Input shaft, output shaft, jackshaft, changement on housing, input shaft and output shaft and jackshaft cloth triangular in shape
Put；Input gear is installed on input shaft, is provided with output shaft and rotates forward output gear and contra-rotating output gears, in centre
Idler gear is installed on axle, output gear is rotated forward and is often engaged with idler gear；When input gear is rotating forward gear, tooth is inputted
Wheel engages with idler gear, and the power of input shaft passes to output shaft by input gear, idler gear, rotating forward output gear,
Realize and rotate forward；When input gear is inverting gear, input gear engages with contra-rotating output gears, and the power of input shaft passes through defeated
Enter gear, contra-rotating output gears pass to output shaft, realization reversion；Changement stirs input gear from rotating forward gear and reversion
Gear moves.
9. rotating gearbox according to claim 8, it is characterised in that changement include handle, pulling axis, driving lever,
Shift fork, pulling axis are arranged on housing, and handle is connected with pulling axis, and driving lever both ends are connected with pulling axis and shift fork respectively, shift fork and input
Gear connects；Fork slot is offered in one end of driving lever, shift fork is arranged on fork slot, and shift fork can slide up and down along fork slot.
10. rotating gearbox according to claim 9, it is characterised in that including the first clamping screw, the second locking screw
Bolt, the 3rd clamping screw, the driving lever other end are fixed on pulling axis by the 3rd clamping screw, and handle one end passes through the second locking screw
Bolt is fixed on pulling axis, and the handle other end is fixed on housing by the first clamping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995696.XA CN107630985A (en) | 2017-10-23 | 2017-10-23 | A kind of chain stretching device and rotating rotary cultivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995696.XA CN107630985A (en) | 2017-10-23 | 2017-10-23 | A kind of chain stretching device and rotating rotary cultivator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107630985A true CN107630985A (en) | 2018-01-26 |
Family
ID=61104999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710995696.XA Pending CN107630985A (en) | 2017-10-23 | 2017-10-23 | A kind of chain stretching device and rotating rotary cultivator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107630985A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111417795A (en) * | 2018-11-08 | 2020-07-14 | 株式会社Lg化学 | Pulley stopper and pulley apparatus including the same |
| CN113501315A (en) * | 2021-07-16 | 2021-10-15 | 山东泉港辐射科技发展有限公司 | Timing device for controlling irradiation time |
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| CN203770560U (en) * | 2014-04-23 | 2014-08-13 | 中船第九设计研究院工程有限公司 | Rocker arm type chain tensioning device |
| CN204459032U (en) * | 2015-01-19 | 2015-07-08 | 湖南中天龙舟农机有限公司 | A kind of V is with engaging and disengaging gear |
| CN207598820U (en) * | 2017-10-23 | 2018-07-10 | 湖南龙舟农机股份有限公司 | A kind of chain stretching device and rotating rotary cultivator |
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| CN201378919Y (en) * | 2009-03-26 | 2010-01-13 | 徐淑业 | Reversible rotovator |
| CN201466809U (en) * | 2009-06-30 | 2010-05-12 | 上海电气电站设备有限公司 | Anti-loosing structure of stator supporting rib |
| CN203151956U (en) * | 2013-03-26 | 2013-08-28 | 湖南中天龙舟农机有限公司 | Crawler belt self-propelled rotary cultivator |
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Cited By (3)
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| CN111417795A (en) * | 2018-11-08 | 2020-07-14 | 株式会社Lg化学 | Pulley stopper and pulley apparatus including the same |
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| CN113501315A (en) * | 2021-07-16 | 2021-10-15 | 山东泉港辐射科技发展有限公司 | Timing device for controlling irradiation time |
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