CN208295047U - It creeps blocking means and tractor - Google Patents
It creeps blocking means and tractor Download PDFInfo
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- CN208295047U CN208295047U CN201820975124.5U CN201820975124U CN208295047U CN 208295047 U CN208295047 U CN 208295047U CN 201820975124 U CN201820975124 U CN 201820975124U CN 208295047 U CN208295047 U CN 208295047U
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Abstract
It creeps blocking means and tractor the utility model relates to speed change gear technical field more particularly to one kind.The blocking means of creeping include multistage planet mechanism；The level-one sun gear of primary planet mechanism is for connecting output shaft of gear-box；The planet carrier of afterbody planetary mechanism can be used in connecting transmission input shaft；The planet carrier of planetary mechanism described in previous stage is fixedly connected with the sun gear of planetary mechanism described in neighboring later stage；Wherein, planetary mechanism described in previous stage is primary planet mechanism or close primary planet mechanism.The tractor includes blocking means of creeping.The purpose of this utility model is to provide blocking means and the tractors of creeping, to improve reduction ratio under the premise of not influencing complete machine chassis, to obtain lower travel speed.
Description
Technical field
It creeps blocking means and tractor the utility model relates to speed change gear technical field more particularly to one kind.
Background technique
Tractor creep blocking means be gearbox provide not low enough the velocity interval of speed again it is relatively narrow in the case where and it is another
If retarder；Blocking means of usually creeping are connected on gearbox front center or rear portion, as choosing to install component.
Blocking means operating feature of creeping is that Running Speed of Tractor is very slow, generally no greater than 2km/h, often low in trench digging etc.
Cooperation agricultural machinery and implement use under fast, large torque special operation condition.
Currently, blocking means of creeping can generally cope with most of speed operation, but the operating condition required in some extremely low speeds
Under service condition it is not satisfied.Excessive reduction ratio will definitely increase train of reduction gears number, and then increase the axis of deceleration mechanism
To size, and climbing mechanism is used as and chooses to install component, limited to its reserved space in gearbox, before not influencing complete machine chassis
It puts difficult to realize.
Therefore, the application provides a kind of new creep blocking means and tractor regarding to the issue above, can not influence it is whole
Machine improves reduction ratio under the premise of chassis, to obtain lower travel speed.
Utility model content
The purpose of this utility model is to provide blocking means of creeping, and are slowed down with improving under the premise of not influencing complete machine chassis
Than to obtain lower travel speed.
The purpose of this utility model also resides in offer tractor, is slowed down with improving under the premise of not influencing complete machine chassis
Than to obtain lower travel speed.
Based on above-mentioned first purpose, blocking means provided by the utility model of creeping, including multistage planet mechanism；
The level-one sun gear of primary planet mechanism is for connecting output shaft of gear-box；The planet carrier of afterbody planetary mechanism
It can be used in connecting transmission input shaft；
The planet carrier of planetary mechanism described in previous stage is fixedly connected with the sun gear of planetary mechanism described in neighboring later stage；Its
In, planetary mechanism described in previous stage is primary planet mechanism or close primary planet mechanism.
The optional technical solution of the utility model is that the blocking means of creeping include ring gear；
Sun gear, planetary gear and the planet carrier of the multistage planetary mechanism are arranged at the inside of the ring gear, and more
The sun gear of the grade planetary mechanism respectively with the ring gear engaged transmission；
With in planetary mechanism described in level-one, sun gear engaged transmission planetary gear, planetary gear drives planet carrier to be rotated；
The sun gear of the multistage planetary mechanism is coaxial.
The optional technical solution of the utility model is, described in the planet carrier and neighboring later stage of planetary mechanism described in previous stage
Wear-resistant gasket is provided between the planet carrier of planetary mechanism；
Wear-resistant gasket is provided between the planet carrier of primary planet mechanism and the ring gear；
Wear-resistant gasket is provided between the planet carrier of afterbody planetary mechanism and the ring gear；
With in planetary mechanism described in level-one, lining ring is provided between planetary gear and planet carrier；
With in planetary mechanism described in level-one, connected between planetary gear and planet wheel spindle by needle roller；
The planet carrier of the planetary mechanism is formed using cast steel with carburizing steel electron beam welding.
The optional technical solution of the utility model is that the level-one sun gear of the primary planet mechanism is fixed at described
On output shaft of gear-box, and the level-one sun gear is coaxial with the output shaft of gear-box；
The planet carrier of afterbody planetary mechanism is connect with the transmission input shaft by spline.
The optional technical solution of the utility model is that the blocking means of creeping include combined cover；
The combined cover is used for housing in the transmission input shaft, and the transmission input shaft can turn with the combined cover
It is dynamic；
The combined cover can be along the axial movement of the transmission input shaft, so that the planet carrier of afterbody planetary mechanism
Be sequentially connected the combined cover.
The optional technical solution of the utility model is that the blocking means of creeping include shift fork axle and housing in the shift fork
Shift fork on axis；The shift fork axle is fixed relative to the position of the wheel shaft of the level-one sun gear of the primary planet mechanism；
The shift fork connects the combined cover far from one end of the shift fork axle；The shift fork can be along the shift fork axle
Axial movement, so that the combined cover can be connect with the output shaft of gear-box enables output shaft of gear-box transmission connection institute
State combined cover, or so that the combined cover can be connect with the planet carrier of the afterbody planetary mechanism order it is described last
The planet carrier transmission connection combined cover of grade planetary mechanism.
The optional technical solution of the utility model is, is axially sequentially arranged at intervals in the shift fork axle along itself multiple recessed
Slot；
The shift fork is connected with the self-locking device of the self-locking groove；The self-locking device includes steel ball and elastic component；Institute
The groove can be abutted by stating steel ball, and the elastic component has the trend for enabling the steel ball abut the groove；
Multiple grooves include high speed gear groove, neutral gear position groove and gear groove of creeping；The high speed gear is recessed
Slot, neutral gear position groove and the gear groove of creeping are set gradually along the axial direction of the shift fork axle；
When the steel ball is connect with the high speed gear groove, the combined cover is connect with the output shaft of gear-box；
When the steel ball is connect with neutral gear position groove, the combined cover and the output shaft of gear-box interval are arranged,
The planet carrier interval of the combined cover and the afterbody planetary mechanism is arranged；
When the steel ball is connect with the gear groove of creeping, the row of the combined cover and the afterbody planetary mechanism
Carrier connection.
The optional technical solution of the utility model is that the blocking means of creeping include inputting for being arranged in the transmission
Shaft block ring on axis；
The combined cover can move between the shaft block ring and the sun gear of afterbody planetary mechanism；
The combined cover includes the first combined cover spline part that can be sequentially connected with the transmission input shaft；Along the knot
The both ends of the axial direction of trap, the first combined cover spline part are provided with back taper structure；
The combined cover includes the second combined cover spline that can be sequentially connected with the planet carrier of afterbody planetary mechanism
Portion；Along the axial direction of the combined cover, the both ends of the second combined cover spline part are provided with back taper structure；
The planet carrier of afterbody planetary mechanism includes can be last with the second combined cover spline part transmission connection
Primary planet carrier spline part；Along the axial direction of the combined cover, the both ends of the afterbody planet carrier spline part are provided with back taper
Structure.
The optional technical solution of the utility model is that the series of the planetary mechanism is two-stage；
The level-one sun gear of primary planet mechanism is for connecting output shaft of gear-box；
Level-one sun gear engaged transmission primary planet wheel, primary planet wheel drive primary planet carrier to be rotated；
The primary planet carrier of planetary mechanism described in level-one is fixedly connected with the secondary solar gear of planetary mechanism described in second level；
Secondary solar gear engaged transmission secondary planet wheel, secondary planet wheel drive secondary planet frame to be rotated；
The secondary planet frame of secondary planet mechanism is for connecting transmission input shaft.
Based on above-mentioned second purpose, tractor provided by the utility model, including the blocking means of creeping.
The utility model has the beneficial effects that
Blocking means provided by the utility model of creeping, the level-one sun gear connection gearbox output of level-one planetary mechanism
The planet carrier of axis, afterbody planetary mechanism connects transmission input shaft, the planet carrier and neighboring later stage of previous stage planetary mechanism
The sun gear of planetary mechanism is fixedly connected；Output shaft of gear-box and transmission input shaft are connected by multistage planet mechanism, not
Under the premise of changing chassis versatility, provide it is a kind of it is compact-sized, choose to install conveniently, effect is reliable, creeper gear machine of big retarding ratio
Structure；The blocking means of creeping can provide bigger reduction ratio, and velocity interval is more extensive, and it is all to cover farm tractor substantially
Operating condition, especially under the operating condition that certain extremely low speeds require, expression effect is satisfactory.
Tractor provided by the utility model includes blocking means of creeping；With blocking means of creeping not change chassis general
Property under the premise of improve reduction ratio the advantages that, lower travel speed can be obtained.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the blocking means of creeping that the utility model embodiment one provides；
Fig. 2 is the structural schematic diagram of the top gear position for the blocking means of creeping that the utility model embodiment one provides (in figure
Show blocking means of partially creeping)；
Fig. 3 is that the structural schematic diagram of the neutral gear position for the blocking means of creeping that the utility model embodiment one provides (shows in figure
Blocking means of partially creeping are gone out)；
Fig. 4 is the structural schematic diagram of the creeper gear position for the blocking means of creeping that the utility model embodiment one provides (in figure
Show blocking means of partially creeping).
Icon: 1- ring gear；2- wear-resistant gasket；3- primary planet carrier；4- secondary planet frame；5- planet carrier backing plate；The hole 6-
Use circlip；7- combined cover；8- shaft block ring；9- secondary planet wheel；10- secondary planet wheel shaft；11- second level needle roller；12-
Shift fork；13- steel ball；14- spring；15- Self-locking screw；16- Self-locking screw split pin；17- shift fork axle；18- level-one needle roller；19-
Primary planet wheel shaft；20- needle roller spacer ring；21- lining ring；22- primary planet wheel；23- output shaft of gear-box；24- transmission input shaft.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment one
Shown in referring to figures 1-4, present embodiments provides one kind and creep blocking means；Fig. 1 mentions for the utility model embodiment
The structural schematic diagram of the blocking means of creeping supplied；Fig. 2-Fig. 4 respectively illustrates blocking means provided by the embodiment of the utility model of creeping
Top gear position, neutral gear position and creeper gear position structural schematic diagram, in order to more clearly show that structure, Fig. 2-Fig. 4
Illustrate only blocking means of partially creeping.
Blocking means provided in this embodiment of creeping, suitable for tractor or similar to the equipment of tractor.
Shown in referring to figures 1-4, the blocking means of creeping include multistage planet mechanism；
The level-one sun gear of primary planet mechanism is for connecting output shaft of gear-box 23；The planet of afterbody planetary mechanism
Frame can be used in connecting transmission input shaft 24；Transmission input shaft 24 is, for example, central transmission input shaft.
The planet carrier of previous stage planetary mechanism is fixedly connected with the sun gear of neighboring later stage planetary mechanism；Wherein, previous
Grade planetary mechanism is primary planet mechanism or close primary planet mechanism, and rear stage planetary mechanism is afterbody planetary mechanism
Or close to afterbody planetary mechanism.Optionally, the planet carrier of previous stage planetary mechanism and neighboring later stage planetary mechanism
Sun gear welding, with the connection reinforced between the planet carrier of previous stage planetary mechanism and the sun gear of neighboring later stage planetary mechanism
Relationship can also enable the structure for blocking means of creeping more compact.
It creeps described in the present embodiment blocking means, the level-one sun gear of level-one planetary mechanism connects output shaft of gear-box
23, the planet carrier of afterbody planetary mechanism connects transmission input shaft 24, the planet carrier of previous stage planetary mechanism with it is adjacent latter
The sun gear of grade planetary mechanism is fixedly connected；Output shaft of gear-box 23 and transmission input shaft 24 are connected by multistage planet mechanism,
With under the premise of not changing chassis versatility, provide it is a kind of it is compact-sized, choose to install conveniently, effect is reliable, big retarding ratio climbs
Row retaining device；The blocking means of creeping can provide bigger reduction ratio, and velocity interval is more extensive, and it is agricultural dilatory to cover substantially
All operating conditions of machine, especially under the operating condition that certain extremely low speeds require, expression effect is satisfactory.
In the optinal plan of the present embodiment, the blocking means of creeping include ring gear 1；
Sun gear, planetary gear and the planet carrier of multistage planet mechanism are arranged at the inside of ring gear 1, and multistage planet machine
The sun gear of structure respectively with the engaged transmission of ring gear 1.By ring gear 1, so that the structure for blocking means of creeping is more compact；It is multistage
Planetary mechanism shares a gear ring, can be by the facewidth of increase rear class planetary gear, to improve rear class in the identical situation of modulus
The bearing capacity of deceleration.
With in level-one planetary mechanism, sun gear engaged transmission planetary gear, planetary gear drives planet carrier to be rotated；For example,
Level-one sun gear engaged transmission primary planet wheel, primary planet wheel drive primary planet carrier to be rotated；The engagement of three-level sun gear
It is driven third-level planetary wheel, third-level planetary wheel drives third-level planetary frame to be rotated；Optionally, planet carrier uses ZG310-570 material
Matter；Optionally, sun gear uses 20CrMnTi material.Optionally, the planet carrier of planetary mechanism is using cast steel and carburizing steel electronics
Beam is welded, to reduce cost and technology difficulty.
Optionally, the sun gear of multistage planet mechanism is coaxial, so that output shaft of gear-box 23 is more stable in creeper gear
Transmit force to transmission input shaft 24.
In the optinal plan of the present embodiment, the series of planetary mechanism is two-stage, three-level or level Four etc..
For example, with reference to shown in Fig. 1, the series of planetary mechanism is two-stage；
The level-one sun gear of primary planet mechanism is for connecting output shaft of gear-box 23；So that output shaft of gear-box 23 will pass
Power transmission is to blocking means of creeping.
Level-one sun gear engaged transmission primary planet wheel 22, primary planet wheel 22 drives primary planet carrier 3 to be rotated；
Optionally, primary planet wheel 22 is connect by primary planet wheel shaft 19 with primary planet carrier 3.
The primary planet carrier 3 of primary planet mechanism is fixedly connected with the secondary solar gear of secondary planet mechanism；
Secondary solar gear engaged transmission secondary planet wheel 9, secondary planet wheel 9 drives secondary planet frame 4 to be rotated；It is optional
Ground, secondary planet wheel 9 are connect by secondary planet wheel shaft 10 with secondary planet frame 4.
The secondary planet frame 4 of secondary planet mechanism is for connecting transmission input shaft 24.So that blocking means of creeping pass through two-stage
The driving force of output shaft of gear-box 23 is driven to transmission input shaft 24 by planetary mechanism.
Traditional tractor creeper gear travels generally in 0.8-1.5km/h, is not able to satisfy the work of some extremely low speed requirements
Condition.Using the tractor for blocking means of creeping described in the present embodiment, under gearbox rated speed, travel speed can reach
0.3Km/h, Ultra-Low Speed operation, significant effect.
In the optinal plan of the present embodiment, the planet carrier of previous stage planetary mechanism and the planet of neighboring later stage planetary mechanism
Wear-resistant gasket 2 is provided between frame；To mitigate the planet carrier of previous stage planetary mechanism and the planet of neighboring later stage planetary mechanism
Abrasion between frame.
In the optinal plan of the present embodiment, wear-resistant gasket is provided between the planet carrier and ring gear 1 of primary planet mechanism
2；To mitigate the abrasion between the planet carrier of primary planet mechanism and ring gear 1.
In the optinal plan of the present embodiment, it is provided between the planet carrier and ring gear 1 of afterbody planetary mechanism wear-resisting
Gasket 2；To mitigate the abrasion between the planet carrier of afterbody planetary mechanism and ring gear 1.Optionally, afterbody planet machine
Planet carrier backing plate 5 is provided between the planet carrier and ring gear 1 of structure.Optionally, planet carrier backing plate 5 is set to ring gear 1 and sets
It sets between the wear-resistant gasket 2 between planet carrier and ring gear 1.Optionally, it is provided between planet carrier backing plate 5 and ring gear 1
Circlip for hole 6.
Optionally, wear-resistant gasket 2 is using bronze material.
In the optinal plan of the present embodiment, with being provided with lining ring 21 in level-one planetary mechanism, between planetary gear and planet carrier；
By lining ring 21, to mitigate the abrasion between planetary gear and planet carrier.Optionally, the material of lining ring is nylon material.
In the optinal plan of the present embodiment, in level-one planetary mechanism, connected between planetary gear and planet wheel spindle by needle roller
It connects.Connected by needle roller, with meet creep blocking means high load capacity and with vibration transmission condition.It is shown in Figure 1, level-one row
It is connected between star-wheel 22 and primary planet wheel shaft 19 by level-one needle roller 18, between secondary planet wheel 9 and secondary planet wheel shaft 10
It is connected by second level needle roller 11.
Optionally, using full needle roller design between planetary gear and planet wheel spindle；Optionally, needle roller two sides are equipped with nylon material
Needle roller spacer ring 20 increase the needle roller service life to alleviate the abrasion of needle roller and planet carrier.
In the optinal plan of the present embodiment, the level-one sun gear of primary planet mechanism is fixed at output shaft of gear-box 23
On, and level-one sun gear is coaxial with output shaft of gear-box 23；Optionally, the level-one sun gear and gearbox of primary planet mechanism are defeated
Shaft 23 is wholely set, to simplify structure.
Optionally, the planet carrier of afterbody planetary mechanism is connected by key with transmission input shaft 24.For example, afterbody
The planet carrier and transmission input shaft 24 of planetary mechanism pass through the key connection such as flat key, spline.
Optionally, the planet carrier of afterbody planetary mechanism is connect with transmission input shaft 24 by spline.
Shown in referring to figures 1-4, in the optinal plan of the present embodiment, the blocking means of creeping include combined cover 7；
Combined cover 7 is used for housing in transmission input shaft 24, and transmission input shaft 24 can be rotated with combined cover 7；
Combined cover 7 can be along the axial movement of transmission input shaft 24, so that the planet carrier of afterbody planetary mechanism is driven
Connect combined cover 7；By combined cover 7, so that blocking means of creeping can be combined with transmission input shaft 24, and transmission input shaft is realized
24 low speed jerking motion state.
Optionally, when combined cover 7 can be along the axial movement of transmission input shaft 24, output shaft of gear-box 23 can also be driven
Combined cover 7 is connected, so that output shaft of gear-box 23 can be combined with transmission input shaft 24, and realizes 24 high speed of transmission input shaft
Operating condition.By combined cover 7 along the axial movement of transmission input shaft 24, so that combined cover 7 and output shaft of gear-box 23 or most
The planet carrier of rear stage planetary mechanism connects, to realize the low speed jerking motion of transmission input shaft 24 and the friction speed to run at high speed
Switching.
In the optinal plan of the present embodiment, the blocking means of creeping include shift fork axle 17 and housing dialling in shift fork axle 17
Fork 12；Shift fork axle 17 is fixed relative to the position of the wheel shaft of the level-one sun gear of primary planet mechanism；
Shift fork 12 connects combined cover 7 far from one end of shift fork axle 17；Shift fork 12 can along the axial movement of shift fork axle 17,
So that combined cover 7 can be connect with output shaft of gear-box 23 enables the transmission connection combined cover 7 of output shaft of gear-box 23, so that speed change
The transmission connection transmission input shaft 24 of case output shaft 23, or so that combined cover 7 can be with the planet carrier of afterbody planetary mechanism
Connection enables the planet carrier transmission connection combined cover 7 of afterbody planetary mechanism, so that output shaft of gear-box 23 passes through afterbody
The planet carrier of planetary mechanism is sequentially connected transmission input shaft 24, to realize the low speed jerking motion of transmission input shaft 24 and run at high speed
The switching of friction speed.
Shown in referring to figures 1-4, in the optinal plan of the present embodiment, along itself axial successively interval setting in shift fork axle 17
There are multiple grooves；
Shift fork 12 is connected with the self-locking device from lock crossbeam；Self-locking device includes steel ball 13 and elastic component 14；13 energy of steel ball
Groove is enough abutted, elastic component 14 has the trend for enabling steel ball 13 abut groove；By groove and self-locking device, shift fork 12 is consolidated
It is scheduled in shift fork axle 17, prevents shift fork 12 with conation.Optionally, elastic component 14 is spring.Optionally, self-locking device includes self-locking
Screw 15, elastic component 14 are set between Self-locking screw 15 and steel ball 13, by Self-locking screw 15, by elastic component 14 and steel
Ball 13 is fixed on shift fork；Optionally, Self-locking screw 15 is provided with Self-locking screw split pin 16 far from one end of elastic component 14, with
Self-locking screw 15 easy to disassemble.
Optionally, multiple grooves include high speed gear groove, neutral gear position groove and gear groove of creeping；High speed gear is recessed
Slot, neutral gear position groove and gear groove of creeping successively are spaced setting along the axial direction of shift fork axle 17.
Shown in Figure 2, mobile shift fork 12, when steel ball 13 is connect with high speed gear groove, combined cover 7 and gearbox are defeated
Shaft 23 connects, to enable the transmission connection combined cover 7 of output shaft of gear-box 23, so that the transmission connection transmission of output shaft of gear-box 23 is defeated
Enter axis 24, so that transmission input shaft 24 is in the state that runs at high speed；Namely transmission input shaft 24 is in top gear position.
Shown in Figure 3, mobile shift fork 12, when steel ball 13 is connect with neutral gear position groove, combined cover 7 and gearbox are exported
The planet carrier interval of the setting of the interval of axis 23, combined cover 7 and afterbody planetary mechanism is arranged；Namely combined cover 7 not with gearbox
Output shaft 23 connects, and combined cover 7 is not also connect with the planet carrier of afterbody planetary mechanism；So that transmission input shaft 24 is in sky
Gear state；Namely transmission input shaft 24 is in neutral gear position.
It is shown in Figure 4, mobile shift fork 12, when steel ball 13 is connect with gear groove of creeping, combined cover 7 and afterbody
The planet carrier of planetary mechanism connects, to enable the planet carrier transmission connection combined cover 7 of afterbody planetary mechanism, so that gearbox is defeated
Shaft 23 passes through the planet carrier transmission connection transmission input shaft 24 of afterbody planetary mechanism, so that transmission input shaft 24 is in low
Speed is creeped state；Namely transmission input shaft 24 is in creeper gear position.It is recessed that high speed gear groove, neutral gear position are in by shift fork 12
Slot and gear groove of creeping are realized so that transmission input shaft 24 is in state, neutral position state and the low speed jerking motion state of running at high speed
Transmission input shaft 24 is from running at high speed to low speed jerking motion, from low speed jerking motion to the switching to run at high speed.
In the optinal plan of the present embodiment, the blocking means of creeping include the axis for being arranged on transmission input shaft 24
With retaining ring 8；Optionally, shaft block ring is circlip for shaft；
Combined cover 7 can move between shaft block ring 8 and the sun gear of afterbody planetary mechanism；Pass through shaft block ring
8, to prevent from putting into gear excessively.
Optionally, combined cover 7 includes the first combined cover spline part that can be sequentially connected with transmission input shaft；Optionally,
Along the axial direction of combined cover, the both ends of the first combined cover spline part are provided with back taper structure, in order to the switching of gear, to improve
Anticreep ability.
Optionally, combined cover includes the second combined cover flower that can be sequentially connected with the planet carrier of afterbody planetary mechanism
Key portion；Optionally, along the axial direction of combined cover, the both ends of the second combined cover spline part are provided with back taper structure, in order to gear
Switching, to improve anticreep ability.
Optionally, the first combined cover spline part is set to the inner wall of combined cover 7, and the second combined cover spline part is set to combination
The outer wall of set 7.
Optionally, the planet carrier of afterbody planetary mechanism includes that can be driven with the second combined cover spline part of combined cover
The afterbody planet carrier spline part of connection；Optionally, along the axial direction of combined cover, the both ends of afterbody planet carrier spline part are set
It is equipped with back taper structure, in order to the switching of gear, to improve anticreep ability.
Embodiment two
Embodiment two provides a kind of tractor, which includes blocking means of creeping described in embodiment one, embodiment
The technical characteristic of blocking means of creeping disclosed in one is also applied for the embodiment, the skill of the published blocking means of creeping of embodiment one
Art feature is not repeated to describe.
Tractor provided in this embodiment includes blocking means of creeping；Do not changing chassis versatility with blocking means of creeping
Under the premise of improve reduction ratio the advantages that, lower travel speed can be obtained.
Tractor described in the present embodiment has the advantages that blocking means of creeping described in embodiment one, disclosed in embodiment one
It is described creep blocking means the advantages of be not repeated to describe herein.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
- The blocking means 1. one kind is creeped, which is characterized in that including multistage planet mechanism；The level-one sun gear of primary planet mechanism is for connecting output shaft of gear-box；The planet carrier of afterbody planetary mechanism can For connecting transmission input shaft；The planet carrier of planetary mechanism described in previous stage is fixedly connected with the sun gear of planetary mechanism described in neighboring later stage；Wherein, Planetary mechanism described in previous stage is primary planet mechanism or close primary planet mechanism.
- 2. blocking means according to claim 1 of creeping, which is characterized in that further include ring gear；Sun gear, planetary gear and the planet carrier of the multistage planetary mechanism are arranged at the inside of the ring gear, and multistage institute State the sun gear of planetary mechanism respectively with the ring gear engaged transmission；With in planetary mechanism described in level-one, sun gear engaged transmission planetary gear, planetary gear drives planet carrier to be rotated；The sun gear of the multistage planetary mechanism is coaxial.
- 3. blocking means according to claim 2 of creeping, which is characterized in that the planet carrier of planetary mechanism described in previous stage and phase Wear-resistant gasket is provided between the planet carrier of planetary mechanism described in adjacent rear stage；Wear-resistant gasket is provided between the planet carrier of primary planet mechanism and the ring gear；Wear-resistant gasket is provided between the planet carrier of afterbody planetary mechanism and the ring gear；With in planetary mechanism described in level-one, lining ring is provided between planetary gear and planet carrier；With in planetary mechanism described in level-one, connected between planetary gear and planet wheel spindle by needle roller；The planet carrier of the planetary mechanism is formed using cast steel with carburizing steel electron beam welding.
- 4. blocking means according to claim 1 of creeping, which is characterized in that the level-one sun gear of the primary planet mechanism is solid It is fixed to be arranged on the output shaft of gear-box, and the level-one sun gear is coaxial with the output shaft of gear-box；The planet carrier of afterbody planetary mechanism is connect with the transmission input shaft by spline.
- 5. blocking means according to claim 1 of creeping, which is characterized in that including combined cover；The combined cover is used for housing in the transmission input shaft, and the transmission input shaft can be rotated with the combined cover；The combined cover can be along the axial movement of the transmission input shaft, so that the planet carrier of afterbody planetary mechanism is driven Connect the combined cover.
- 6. blocking means according to claim 5 of creeping, which is characterized in that including shift fork axle and housing in the shift fork axle Shift fork；The shift fork axle is fixed relative to the position of the wheel shaft of the level-one sun gear of the primary planet mechanism；The shift fork connects the combined cover far from one end of the shift fork axle；The shift fork can be along the axial direction of the shift fork axle It is mobile, so that the combined cover can be connect with the output shaft of gear-box enables the output shaft of gear-box transmission connection knot Trap, or so that the combined cover can be connect with the planet carrier of the afterbody planetary mechanism enables the afterbody row The planet carrier transmission connection combined cover of star mechanism.
- 7. blocking means according to claim 6 of creeping, which is characterized in that be axially successively spaced in the shift fork axle along itself It is provided with multiple grooves；The shift fork is connected with the self-locking device of the self-locking groove；The self-locking device includes steel ball and elastic component；The steel Ball can abut the groove, and the elastic component has the trend for enabling the steel ball abut the groove；Multiple grooves include high speed gear groove, neutral gear position groove and gear groove of creeping；The high speed gear groove, institute It states neutral gear position groove and the gear groove of creeping is set gradually along the axial direction of the shift fork axle；When the steel ball is connect with the high speed gear groove, the combined cover is connect with the output shaft of gear-box；When the steel ball is connect with neutral gear position groove, the combined cover and the output shaft of gear-box interval are arranged, described The planet carrier interval of combined cover and the afterbody planetary mechanism is arranged；When the steel ball is connect with the gear groove of creeping, the planet carrier of the combined cover and the afterbody planetary mechanism Connection.
- 8. blocking means according to claim 5 of creeping, which is characterized in that including for being arranged in the transmission input shaft Shaft block ring；The combined cover can move between the shaft block ring and the sun gear of afterbody planetary mechanism；The combined cover includes the first combined cover spline part that can be sequentially connected with the transmission input shaft；Along the combined cover Axial direction, the both ends of the first combined cover spline part are provided with back taper structure；The combined cover includes the second combined cover spline part that can be sequentially connected with the planet carrier of afterbody planetary mechanism；Edge The both ends of the axial direction of the combined cover, the second combined cover spline part are provided with back taper structure；The planet carrier of afterbody planetary mechanism includes the afterbody that can be sequentially connected with the second combined cover spline part Planet carrier spline part；Along the axial direction of the combined cover, the both ends of the afterbody planet carrier spline part are provided with back taper structure.
- 9. blocking means according to claim 1 of creeping, which is characterized in that the series of the planetary mechanism is two-stage；The level-one sun gear of primary planet mechanism is for connecting output shaft of gear-box；Level-one sun gear engaged transmission primary planet wheel, primary planet wheel drive primary planet carrier to be rotated；The primary planet carrier of planetary mechanism described in level-one is fixedly connected with the secondary solar gear of planetary mechanism described in second level；Secondary solar gear engaged transmission secondary planet wheel, secondary planet wheel drive secondary planet frame to be rotated；The secondary planet frame of secondary planet mechanism is for connecting transmission input shaft.
- 10. a kind of tractor, which is characterized in that including the described in any item blocking means of creeping of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820975124.5U CN208295047U (en) | 2018-06-22 | 2018-06-22 | It creeps blocking means and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820975124.5U CN208295047U (en) | 2018-06-22 | 2018-06-22 | It creeps blocking means and tractor |
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| CN208295047U true CN208295047U (en) | 2018-12-28 |
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| CN201820975124.5U Active CN208295047U (en) | 2018-06-22 | 2018-06-22 | It creeps blocking means and tractor |
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| CN (1) | CN208295047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033692A (en) * | 2019-04-28 | 2019-07-19 | 重庆理工大学 | A kind of planetary gear mechanism movement instructional device |
| CN114233848A (en) * | 2021-12-07 | 2022-03-25 | 江苏沃得农业机械股份有限公司 | Tractor grade drive mechanism that crawls |
-
2018
- 2018-06-22 CN CN201820975124.5U patent/CN208295047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033692A (en) * | 2019-04-28 | 2019-07-19 | 重庆理工大学 | A kind of planetary gear mechanism movement instructional device |
| CN114233848A (en) * | 2021-12-07 | 2022-03-25 | 江苏沃得农业机械股份有限公司 | Tractor grade drive mechanism that crawls |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261000 No.192, Beihai South Road, Fangzi District, Weifang City, Shandong Province Patentee before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
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Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |