CN207437739U

CN207437739U - A kind of gearbox designs

Info

Publication number: CN207437739U
Application number: CN201721591822.7U
Authority: CN
Inventors: 牟守江; 宋刚; 詹英士
Original assignee: Weima Agricultural Ltd By Share Ltd
Current assignee: Weima Agricultural Ltd By Share Ltd
Priority date: 2017-11-24
Filing date: 2017-11-24
Publication date: 2018-06-01
Anticipated expiration: 2027-11-24

Abstract

The utility model discloses a kind of gearbox designs, including babinet, the rotatable power input shaft on babinet and power output shaft that is parallel with power input shaft and being sequentially connected, its feature is, it further includes rotatable on babinet and parallel to the jackshaft that power input shaft is set, jackshaft transfer gear train is provided between power input shaft and jackshaft for jackshaft to be driven to rotate in same direction；Two gear transfer gear trains are provided between power input shaft and power output shaft for power output shaft to be driven to be rotated forward with two gear rotating speeds；A gear transfer gear train is each provided between jackshaft and power output shaft, and for driving, power output shaft is rotated forward with a gear rotating speed and reverse gear gear train is used to that power output shaft to be driven to invert；On the jackshaft at least there is vacant section of part and described vacant section can form neutral gear gear with the change gear face.The utility model have it is simple in structure, compact, power transfer it is more reasonable, the advantages of can adapt to a variety of additional equipments, operating efficiency can be improved.

Description

A kind of gearbox designs

Technical field

The utility model is related to gearbox technical fields；More particularly to a kind of gearbox designs.

Background technology

At present, as the farm machineries such as the quickening of China's agricultural modernization process, cultivator can greatly be dropped as one kind The machinery equipment of low peasant's labor intensity, has become increasingly popular.The mechanical devices such as cultivator and motorcycle, it is bent by engine The rotation of axis, by power（Torque）Output, then the rate conversion by gearbox body, generate the gear of different rotating speeds, then pass through Output shaft is by power（Torque）Be conveyed to next stage cultivating apparatus or and running gear, cultivator is driven to generate corresponding plough Make, walking motion.

Rear-mounted cultivator hoofing part gearbox designs of the prior art, it will usually have neutral gear, two or with Upper forward gear and one or more fall back gear.Though there is more gears design of more than two forward gears can meet farming effect simultaneously for it Rate and transition speed, but structure is complex, manufacture cost is also higher；Only though there are two the gear design structures of forward gear It is upper simple, but two gear speed are low, and transition speed is too slow.And such cultivator of the prior art falls back operation and the forward gear of gear Mode of operation it is different, further influence transition speed and farming efficiency.

Chinese patent（CN103291853A）The dynamic structure of engine mission body is disclosed, is set in transmission case body There are jackshaft and power output shaft；The jackshaft is two-part, among the be not connected directly first intermediate shaft part and second Shaft part forms；The first intermediate shaft part is driven to rotate during engine rotation；On the first intermediate shaft part, gear is provided with, gear Internal spline is combined with the outer teeth groove of the first intermediate shaft part end, and the first intermediate shaft part drives gear to rotate；On second intermediate shaft part, It is provided with the first duplicate gear；Gear is connected with rotating speed switching push rod, and rotating speed switching push rod band moving gear is in the first intermediate shaft part On move to left and right, pass through different power transmission structure respectively and the second intermediate shaft part driven to rotate.The power knot of the present invention Structure, the jackshaft of gearbox body is two sections, can directly export high and low two gears rotating speed as desired as power output shaft, can band Move many additional equipment work；Jackshaft has high and low two gear rotating speeds, and shift gears different from power output shaft engage, Power output shaft has more output gears.But the invention design in, jackshaft be two sections of axially adjacent structures, two sections Jackshaft is directly to be driven by gear and tooth socket, and such kind of drive causes two sections of jackshafts to hold in passing power Easily be distorted deformation, and power transfers unreasonable；Secondly, more gear structure manufactures are of high cost；Furthermore structure gearshift needs Operation high and low rotating speed switching push rod and gear changer lever carry out the selection of forward gear and reverse gear also to need in addition to operate the handle that reverses gear, It operates complex.Therefore although the dynamic structure of the engine mission body of the structure meets farming efficiency and transition speed The demand of degree, but operation is not simple enough, manufacture is of high cost.

Therefore, it is simple in structure, compact that one kind can how be provided, it is more reasonable that power transfers, and can adapt to a variety of attached Add equipment, the gearbox designs of operating efficiency can be improved, becoming those skilled in the art has the technical issues of to be solved.

Utility model content

In view of the above shortcomings of the prior art, technical problem to be solved in the utility model is：How a kind of knot is provided Structure is simple, compact, and it is more reasonable that power transfers, and can adapt to a variety of additional equipments, can improve the gearbox knot of operating efficiency Structure.

In order to solve the above-mentioned technical problem, the utility model employs following technical solution：

A kind of gearbox designs including babinet, rotatable power input shaft on babinet and are inputted with power Axis is parallel and the power output shaft that is sequentially connected, is axially slidably provided with gear teeth by key cooperation on power output shaft Wheel corresponds to change gear on babinet and is provided with shift fork, and shift fork is connected with shifting commands input mechanism and can stir change gear Axially displaced to the different gear on power output shaft is effectively output gear at least with more than two gears, becomes Fast gear is axially displaced to different can be engaged when effectively exporting gear with the gear input gear of each effective output gear, Each gear input gear is used to be sequentially connected by the gear transmission mechanism of different drive ratios performs component to external action；It is special Point is, further includes jackshaft that is rotatable on babinet and parallel or coaxially being set in power input shaft, power Jackshaft transfer gear train is provided between input shaft and jackshaft for jackshaft to be driven to rotate in same direction；Power input shaft with Two gear transfer gear trains are provided between power output shaft for power output shaft to be driven to be rotated forward with two gear rotating speeds；Jackshaft with A gear transfer gear train is provided between power output shaft for power output shaft to be driven to be rotated forward with a gear rotating speed；Jackshaft with Reverse gear gear train is also set up between power output shaft for power output shaft to be driven to invert；At least have on the jackshaft There is vacant section of part and described vacant section can form neutral gear gear with the change gear face.

It is driven and connected by the jackshaft transfer gear train of setting in the technical program, between power input shaft and jackshaft It connects；Power input shaft is sequentially connected by two gear transfer gear trains of setting with power output shaft and is formed on power output shaft Two gear outputs；One keeping off transfer gear train and forming on power output shaft one by setting between jackshaft and power output shaft Gear output；It is reversed gear between jackshaft and power output shaft by the reverse gear gear train of setting and being formed on power output shaft Output；Vacant neutral gear section is additionally provided on jackshaft；In this way, formd on power output shaft a gear, two gear, reverse gear and Four gears of neutral gear；By this gearbox designs be applied to cultivator when, one gear speed more slowly can be used as farming work gear, two Gear when keeping off as transition, farming completion need transition farming, using two gears as gear during transition, can save transition Time improves work efficiency.And two gears are as top gear, are power input shafts with power output shaft direct-drive and from power Output shaft exports, and the load of cultivator is small during because of transition, need to only provide tractive force during walking, and this way of output is more increased Effect, it is more reasonable that power transfers；One gear and when reversing gear, the input of power from power input shaft, then after jackshaft is driven, transferring To power output shaft, because a gear and reverse gear for farming when gear, cultivator load is larger during farming, is transferred again after jackshaft It is exported to power output shaft, this way of output is more efficient, and it is more reasonable that power transfers.

As an optimization, the jackshaft transfer gear train include the fixedly sleeved power input gear in power input shaft and Duplicate gear of the empty set on power output shaft, duplicate gear tool there are two the external tooth that is set up in parallel respectively with power input gear And the engaged transmission of the counter shaft driven gear with being sequentially connected on jackshaft.

In this way, power input shaft is by setting power input gear on itself that power is input to empty set in power Duplicate gear on output shaft, duplicate gear transfer power to the jackshaft driven tooth of jackshaft again；Duplicate gear is used The mode of empty set is arranged on power output shaft, can save the space needed for piece axis of additional setting in babinet, can Reach the effect of section space-efficient, reduce manufacture cost, while also there is compact-sized effect.Secondly, inputted compared with power Axis is connected with jackshaft direct-drive, plays an important role of to protect jackshaft and power input shaft so that power input shaft and centre The torque smaller that axis is subject to；This way of output is more efficient simultaneously, and it is more reasonable that power transfers.

As an optimization, the two gears transfer gear train includes the duplicate gear, and one end mask of the duplicate gear There is a driving claw disk, one end opposite with driving claw disk on the change gear has from pawl disk, and the shift fork can be stirred The axial movement of change gear along power output shaft cause the driving claw disk and it is described from pawl disk engaged transmission.

It is in this way, directly driven on change gear end face with being arranged on using the driving claw disk for being arranged on duplicate gear end face Pawl disk carries out cooperation transmission, and the opposite mode with being driven using a pair of of gear saves a gear.And also have and pass It is dynamic simple in structure and compact, facilitate and realize that is be driven is connected and disconnected from.

As an optimization, the gear transfer gear train includes a fixedly sleeved gear driving gear on jackshaft, described The axial movement that shift fork can stir change gear along power output shaft causes the change gear to keep off driving gear with one and engage Transmission.

In this way, it is simple in structure and compact, it is sequentially connected using a pair of of gear, transmission efficiency is high.

As an optimization, the reverse gear gear train includes the fixedly sleeved driving gear that reverses gear on jackshaft, described Driving gear reverse gear with the rotatable tumbler gear engaged transmission of reversing gear on babinet, the shift fork can stir speed change The axial movement of gear along power output shaft causes the change gear and tumbler gear engaged transmission of reversing gear.

In this way, simple in structure and compact, transmission efficiency is high.

As an optimization, a gear driving gear and driving gear interval setting of reversing gear, and the gear on jackshaft is actively Part between gear and the driving gear that reverses gear is vacant section, and the shift fork can stir axis of the change gear along power output shaft To mobile so that the change gear forms neutral gear gear with vacant section of face on jackshaft.

In this way, realize vacant section of the neutral gear gear gear driving gear being arranged on jackshaft and reverse gear driving gear it Between, the enhanced convenience when actually putting into gear operation, and so setting can also so that layout is more reasonable, it is compacter, it saves The space of babinet reduces the spatial volume installed needed for entire gearbox body structure.

As an optimization, the jackshaft is coaxially disposed with the power input shaft.

In such manner, it is possible to so that on babinet for radial direction institute when installing power input shaft, jackshaft and power output shaft Size is needed to reduce so that compacter between each component of box house；Simultaneously but also under entirely the bulk of babinet subtracts, Facilitate installation and carrying.

As an optimization, one end that jackshaft is oppositely arranged is provided with connecting hole, and the company on power input shaft It connects the axis in hole and overlaps setting with the axis of power input shaft；One end of connecting hole is rotatably inserted described in the jackshaft face Cooperation is connect in the connecting hole, and bearing is installed between the connecting hole and the jackshaft, the bearing it is interior Enclose fixedly sleeved on jackshaft, the outer ring of the bearing is connected and fixed on the internal perisporium of connecting hole.

In this way, the concentricity of power input shaft and jackshaft is more preferable, additionally it is possible to so that being inputted on babinet for installing power The axial dimension of axis and jackshaft reduces so that total is compacter, and arrangement is more reasonable；Simultaneously but also entire babinet Bulk reduce, facilitate installation and carrying.

As an optimization, shaft coupling is sequentially connected with away from one end of power input shaft on the jackshaft, in shaft coupling Peripheral surface be provided with whole groove in a ring, the driving lever set along depth of groove direction, one end of driving lever extend into institute Inside grooves are stated, the other end of driving lever is connected the axial movement for driving driving lever along jackshaft with driving lever control mechanism.

In this way, tool can adapt to a variety of additional equipments there are one power output end on jackshaft；The convenient action with outside Perform equipment connection；And shaft coupling is used to be conveyed into action edge, there is transmission efficiency, facilitates the transmission for realizing power with breaking It opens.The axial movement for driving shaft coupling along jackshaft is gone using the driving lever for being plugged into the inside grooves that shaft coupling has, there is knot Structure is simple, it is easy to control the advantages of.

As an optimization, the driving lever control mechanism includes control-rod, and the control-rod sets parallel to jackshaft and can edge Itself is axially slidable on babinet, and one end of control-rod is connected with the driving lever, and control-rod is also fixed with control stick It is connected, the control stick is connected with power output operating mechanism and shaft coupling can be driven to be in occlusion or separate two kinds of work shapes State.

In this way, driving lever control mechanism has the advantages that simple in structure, and driving lever can be realized and automatically reset.It is conveniently operated It uses.

Description of the drawings

Fig. 1 is the front view in the utility model specific embodiment.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the A-A sectional views of Fig. 2.

Specific embodiment

With reference to example attached drawing, the utility model is described in further detail.

During specific implementation：As shown in Figure 1 to Figure 3, a kind of gearbox designs, including babinet 1, rotatably mounted on babinet Power input shaft 2 on 1 and power output shaft 3 that is parallel with power input shaft 2 and being sequentially connected are relied on power output shaft 3 Key cooperation is axially slidably provided with change gear 4, and change gear 4 is corresponded on babinet 1 and is provided with shift fork 5, shift fork 5 and gearshift Instruction input mechanism is connected and can stir the gear axially displaced to different on power output shaft 3 of change gear 4, at least With more than two gears gear, axially displaced to different energy when effectively exporting gear of change gear 4 are exported to be effective The gear input gear engagement of enough and each effective output gear, each gear input gear are used to pass by the gear of different drive ratios Motivation structure is sequentially connected performs component to external action；It is characterized in that, it further includes rotatable on babinet 1 and flat Row or the jackshaft 6 coaxially set in power input shaft 2, are provided with jackshaft driving cog between power input shaft 2 and jackshaft 6 Train is used to that jackshaft 6 to be driven to rotate in same direction；Two gear transmission gears are provided between power input shaft 2 and power output shaft 3 System rotates forward for power output shaft 3 to be driven to keep off rotating speeds with two；Gear transmission is provided between jackshaft 6 and power output shaft 3 Gear train rotates forward for power output shaft 3 to be driven to keep off rotating speed with one；It also sets up and reverses gear between jackshaft 6 and power output shaft 3 Transfer gear train is used to that power output shaft 3 to be driven to invert；At least there is vacant section of part and described vacant on the jackshaft 6 Section can form neutral gear gear with 4 face of change gear.

In this specific embodiment, the jackshaft transfer gear train includes the fixedly sleeved power in power input shaft 2 The duplicate gear 8 of input gear 7 and empty set on power output shaft 3, there are two the external tooth difference being set up in parallel for the tool of duplicate gear 8 9 engaged transmission of counter shaft driven gear with power input gear 7 and with drive connection on jackshaft 6.

In this specific embodiment, the two gears transfer gear train includes the duplicate gear 8, and the duplicate gear 8 End face there is driving claw disk, one end opposite with driving claw disk on the change gear 4 has from pawl disk, described group Fork 5 can stir change gear 4 along power output shaft 3 axial movements cause the driving claw disk and it is described from pawl disk engage Transmission.

In this specific embodiment, the gear transfer gear train includes a fixedly sleeved gear on jackshaft 6 actively Gear 10, the axial movement that the shift fork 5 can stir change gear 4 along power output shaft 3 cause the change gear 4 and one Keep off driving gear engaged transmission.

In this specific embodiment, the reverse gear gear train includes fixedly sleeved reversing gear actively on jackshaft 6 Gear 11, reverse gear driving gear 11 and rotatable 12 engaged transmission of tumbler gear of reversing gear on babinet 1 are described Shift fork 5 can stir axial movement of the change gear 4 along power output shaft 3 so that the change gear 4 and the tumbler gear that reverses gear 12 engaged transmissions.

In this way, simple in structure and compact, transmission efficiency is high.

In this specific embodiment, a gear driving gear 10 and the driving gear 11 that reverses gear are arranged at intervals, and jackshaft 6 On a gear driving gear 10 and the driving gear 11 that reverses gear between part for vacant section, the shift fork 5 can stir gear teeth Wheel 4 is along the axial movement of power output shaft 3 so that the change gear 4 forms neutral gear gear with vacant section of face on jackshaft 6 Position.

In this specific embodiment, the jackshaft 6 is coaxially disposed with the power input shaft 2.

In this specific embodiment, one end being oppositely arranged with jackshaft 6 on power input shaft 2, which is provided with, to be connected Hole, and the axis of the connecting hole overlaps setting with the axis of power input shaft 2；Connecting hole described in 6 face of jackshaft One end is rotatable mating in the connecting hole, and is equipped with axis between the connecting hole and the jackshaft 6 13 are held, the inner ring of the bearing 13 is fixedly sleeved on jackshaft 6, and the outer ring of the bearing 13 is connected and fixed in connecting hole On peripheral wall.

In this way, the concentricity of power input shaft and jackshaft is more preferable, additionally it is possible to so that being inputted on babinet for installing power The axial dimension of axis and jackshaft reduces so that total is compacter, and arrangement is more reasonable；Simultaneously but also entire babinet Bulk reduce, facilitate installation and carrying.In the specific implementation, using needle bearing, and needle bearing is only retained Retainer and needle roller part so that the needle roller of needle bearing is directly rolled with the internal perisporium of the outer circumferential surface of jackshaft and connecting hole Cooperation.

In this specific embodiment, shaft coupling is sequentially connected with away from one end of power input shaft 2 on the jackshaft 6 14, the peripheral surface of shaft coupling 14 is provided with whole groove in a ring, the driving lever 15 set along depth of groove direction, driving lever 15 one end extend into the inside grooves, and the other end of driving lever 15 is connected to drive with driving lever control mechanism driving lever 15 in The axial movement of countershaft 6.

In this specific embodiment, the driving lever control mechanism includes control-rod 16, and the control-rod 16 is parallel to centre Axis 6 set and can along itself it is axially slidable be mounted on babinet 1 on, one end of control-rod 16 is connected with the driving lever 15, control Bar 16 processed is also fixedly linked with control stick 17, and the control stick 17 is connected with power output operating mechanism and can drive shaft coupling 14 in two kinds of working conditions of occlusion or separation.

In this specific embodiment, the driving lever control mechanism further includes control-rod resetting-mechanism, and the control-rod resets Mechanism includes being set in the resetting spring of the other end of control-rod, has the axis that supporting is affixed with resetting spring inner end on control-rod Shoulder, the outer end of resetting spring are extended the end face setting of control-rod and are pushed against on the inner wall with babinet.In this way, shaft coupling is in driving lever It can realize and automatically reset under the action of control mechanism, manipulation can be facilitated.

In this specific embodiment, by arrangement of clutch 18 and moved away from one end of jackshaft on the power input shaft 2 Power apparatus is sequentially connected.In such manner, it is possible to facilitate the drive connection and disengaging of gearbox designs and external impetus.

In conclusion in the invention, using power input shaft, power output shaft and jackshaft totally three axis, seven Gear（Wherein there are one be duplicate gear）, realize a gear, two gears, reverse gear exports with neutral gear from power output shaft.Power Input shaft driving jackshaft, which is utilized on power output shaft, is set with duplicate gear, then double on power output shaft by empty set Connection gear goes what driving jackshaft was realized, so as to achieve the purpose that reduce by an axis；Wherein two gears are in power input shaft and move Transmission obtains between power output shaft, and is employed with driving claw disk duplex-gear and with the change gear from pawl disk It is sequentially connected and exports two gears from power output shaft, so as to achieve the purpose that reduce by a gear；It is that will first move that one, which keeps off and reverses gear, The power of power input shaft is transferred to jackshaft, exports a gear between jackshaft and power output shaft again and reverses gear；Compared with common Structure can realize a gear, two gears, the speed changer structure to reverse gear with neutral gear, save a gear and an axis；And also It is compact with simple in structure, it is driven the advantages of reasonable.

Claims

1. a kind of gearbox designs, including babinet（1）, rotatably mounted on babinet（1）On power input shaft（2）With with it is dynamic Power input shaft（2）Power output shaft that is parallel and being sequentially connected（3）, power output shaft（3）It is upper to slide axially by key cooperation Ground is provided with change gear（4）, babinet（1）Upper corresponding change gear（4）It is provided with shift fork（5）, shift fork（5）It is defeated with shifting commands Enter mechanism to be connected and can stir change gear（4）In power output shaft（3）Upper axially displaced to different gear, at least has There are two above gears effectively to export gear, change gear（4）Axially displaced to different energy when effectively exporting gear The gear input gear engagement of enough and each effective output gear, each gear input gear are used to pass by the gear of different drive ratios Motivation structure is sequentially connected performs component to external action；Babinet is rotatably mounted on it is characterized in that, further including（1）On and It is parallel or coaxially in power input shaft（2）The jackshaft of setting（6）, power input shaft（2）With jackshaft（6）Between be provided with Countershaft transfer gear train is used to drive jackshaft（6）It rotates in same direction；In power input shaft（2）With power output shaft（3）Between set Two grades of transfer gear trains are equipped with for driving power output shaft（3）It is rotated forward with two gear rotating speeds；In jackshaft（6）With power output shaft （3）Between be provided with one grade of transfer gear train for driving power output shaft（3）It is rotated forward with one grade of rotating speed；In jackshaft（6）With Power output shaft（3）Between also set up reverse gear gear train for driving power output shaft（3）Reversion；In the jackshaft （6）On at least have vacant section of part and it is described vacant section can be with the change gear（4）Face forms neutral gear gear.

2. a kind of gearbox designs as described in claim 1, which is characterized in that the jackshaft transfer gear train includes fixing It is socketed in power input shaft（2）Power input gear（7）With empty set in power output shaft（3）On duplicate gear（8）, duplex Gear（8）Tool there are two the external tooth that is set up in parallel respectively with power input gear（7）And with being sequentially connected in jackshaft（6）On Counter shaft driven gear（9）Engaged transmission.

3. a kind of gearbox designs as claimed in claim 2, which is characterized in that the two gears transfer gear train includes described double Join gear（8）, and the duplicate gear（8）End face have driving claw disk, the change gear（4）On with driving claw disk Opposite one end has from pawl disk, the shift fork（5）Change gear can be stirred（4）Along power output shaft（3）Axial shifting It is dynamic so that the driving claw disk and described from pawl disk engaged transmission.

4. a kind of gearbox designs as described in claim 1, which is characterized in that the gear transfer gear train includes fixing sleeve It is connected on jackshaft（6）On one gear driving gear（10）, the shift fork（5）Change gear can be stirred（4）Along power output shaft （3）Axial movement cause the change gear（4）With a gear driving gear engaged transmission.

5. a kind of gearbox designs as claimed in claim 4, which is characterized in that the reverse gear gear train includes fixing sleeve It is connected on jackshaft（6）On the driving gear that reverses gear（11）, the driving gear that reverses gear（11）With being rotatably mounted on babinet（1） On the tumbler gear that reverses gear（12）Engaged transmission, the shift fork（5）Change gear can be stirred（4）Along power output shaft（3）'s Axial movement is so that the change gear（4）With the tumbler gear that reverses gear（12）Engaged transmission.

A kind of 6. gearbox designs as claimed in claim 5, which is characterized in that the gear driving gear（10）With master of reversing gear Moving gear（11）It is arranged at intervals, and jackshaft（6）On one gear driving gear（10）With the driving gear that reverses gear（11）Between portion It is divided into vacant section, the shift fork（5）Change gear can be stirred（4）Along power output shaft（3）Axial movement cause the change Fast gear（4）With jackshaft（6）On vacant section of face formed neutral gear gear.

A kind of 7. gearbox designs as described in claim 1, which is characterized in that the jackshaft（6）It is inputted with the power Axis（2）Coaxial arrangement.

8. a kind of gearbox designs as claimed in claim 7, which is characterized in that in power input shaft（2）On and jackshaft （6）The one end being oppositely arranged is provided with connecting hole, and the axis and power input shaft of the connecting hole（2）Axis coincidence set It puts；The jackshaft（6）One end of connecting hole described in face is rotatable mating in the connecting hole, and described Connecting hole and the jackshaft（6）Between bearing is installed（13）.

A kind of 9. gearbox designs as claimed in claim 7, which is characterized in that the jackshaft（6）On away from power it is defeated Enter axis（2）One end be sequentially connected with shaft coupling（14）, in shaft coupling（14）Peripheral surface be provided with whole in a ring recessed Slot, the driving lever set along depth of groove direction（15）, driving lever（15）One end extend into the inside grooves, driving lever（15）It is another One end is connected to drive driving lever with driving lever control mechanism（15）Along jackshaft（6）Axial movement.

10. a kind of gearbox designs as claimed in claim 9, which is characterized in that the driving lever control mechanism includes control-rod （16）, the control-rod（16）Parallel to jackshaft（6）Set and can along itself it is axially slidable be mounted on babinet（1）On, Control-rod（16）One end and the driving lever（15）It is connected, control-rod（16）Also with control stick（17）It is fixedly linked, the manipulation Bar（17）It is connected with power output operating mechanism and can drives shaft coupling（14）In two kinds of working conditions of occlusion or separation.