CN108716529B - Self-propelled device - Google Patents
Self-propelled device Download PDFInfo
- Publication number
- CN108716529B CN108716529B CN201810849758.0A CN201810849758A CN108716529B CN 108716529 B CN108716529 B CN 108716529B CN 201810849758 A CN201810849758 A CN 201810849758A CN 108716529 B CN108716529 B CN 108716529B
- Authority
- CN
- China
- Prior art keywords
- fixed
- driving
- self
- clutch
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 17
- 230000033001 locomotion Effects 0.000 description 9
- 238000013459 approach Methods 0.000 description 5
- 230000001603 reducing effect Effects 0.000 description 4
- 244000025254 Cannabis sativa Species 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
- F16H37/082—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft and additional planetary reduction gears
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
- F16H48/24—Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/36—Differential gearings characterised by intentionally generating speed difference between outputs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/40—Constructional details characterised by features of the rotating cases
- F16H2048/405—Constructional details characterised by features of the rotating cases characterised by features of the bearing of the rotating case
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
- F16H2048/423—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon characterised by bearing arrangement
Abstract
The invention provides a self-propelled device, and belongs to the technical field of machinery. The self-propelled device solves the problems of single function, loose structure, poor running stability and smoothness and the like of the existing self-propelled device. The self-propelled device comprises an automatic clutch and a differential mechanism connected with two half shafts, wherein the differential mechanism comprises a rotary shell, the automatic clutch comprises a fixed clutch part and a movable clutch part, the fixed clutch part can be automatically connected and separated, the movable clutch part can drive the fixed clutch part to rotate when being connected with the fixed clutch part, the self-propelled device also comprises a bearing used for connecting the differential mechanism and the automatic clutch, the fixed clutch part is sleeved on one of the half shafts in an empty mode, the rotary shell and the fixed clutch part are fixedly connected with an inner ring of the bearing, a fixed shell is sleeved on the outer side of the rotary shell, a step is arranged on the inner side surface of the fixed shell, and the end face of an outer ring of the bearing abuts against the step. The self-propelled vehicle has compact structure and stable and smooth operation under each working mode on the basis of automatically completing the switching of the working modes and the flexible turning function.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a self-propelled device.
Background
The lawn mower is also called a grass mower, a grass mower and the like, and comprises a grass cutter, an engine, a travelling mechanism, a handle and a control part, and can be divided into a hand-push lawn mower and a self-propelled lawn mower. The travelling mechanism of the lawn mower comprises a wheel shaft, and a roller is arranged on the wheel shaft. The hand-push type lawn mower is in a manual pushing mode, and the hand-push type lawn mower is manually pushed to enable the rollers to rotate so as to realize walking; the self-propelled lawn mower is in an automatic walking mode, the lawn mower automatically walks, and the motor or the engine drives the rollers to rotate so as to realize walking. The components on the lawn mower that enable the lawn mower to walk automatically are also called as self-propelled devices of the lawn mower.
The lawn mower needs to turn in the walking process, and Chinese patent literature data discloses and proposes a multipurpose harvester [ application number: 91221560.7, bulletin number: 2119758U ], discloses a differential mechanism, the walking wheel axle is divided into two semi-axles, the differential mechanism is assembled between two semi-axles, the differential mechanism comprises a supporting plate, a disc, a driven sprocket, a shell formed by fixedly connecting the reinforcing disc and a semi-axle gear planetary gear mechanism consisting of a semi-axle gear, a planetary gear and a pin shaft, and the convenient and flexible turning is realized.
When the lawn mower works, some places need to walk automatically, and some places need to be pushed manually. The Chinese patent literature disclosure proposes a mower with an automatic clutch [ application number: CN201210007798.3, publication No.: 103202136A ] comprising a housing, a mowing blade pivotally mounted within the housing, a mowing motor mounted within the housing for driving the blade to mow, a self-propelled motor disposed within the housing, a transmission mechanism fixed relative to the self-propelled motor, a self-propelled drive shaft driven by the transmission mechanism, a pair of rear wheels driven by the self-propelled drive shaft, a pair of front wheels mounted at the front of the housing, an operating handle mounted at the rear of the housing, a power source, and an operating mechanism on the handle, an automatic clutch disposed between the self-propelled motor and the transmission mechanism. When the self-propelled motor works, the automatic clutch is in an engaged state under the action of friction force, so that the rear wheel can automatically walk; when the self-propelled motor stops working, the friction force on the automatic clutch is insufficient and is in a separated state, so that the rear wheel is manually pushed. The automatic clutch can be adaptively connected and disconnected along with the change of the working state of the motor, and the clutch does not need to be manually operated, so that the self-walking device of the lawn mower can automatically complete the switching of working modes, and the working modes comprise an automatic walking mode and a manual pushing mode.
If the self-propelled device on the lawn mower is required to realize flexible turning and automatically complete switching of the working modes, the differential mechanism and the automatic clutch are required to be arranged on the self-propelled device at the same time. How to integrate the differential mechanism and the automatic clutch on the self-propelled device, so that the self-propelled device has the functions of flexibly turning and automatically completing the switching of the working modes, and meanwhile, the self-propelled device is compact in structure, and can stably and smoothly run in each working mode, thus the self-propelled device is a problem to be solved urgently.
Disclosure of Invention
The invention aims at solving the problems existing in the prior art, and provides a self-propelled device, which solves the technical problems that: on the basis of enabling the self-propelled vehicle to automatically complete the switching of the working modes and the flexible turning function, the self-propelled vehicle is compact in structure and stable and smooth in operation under each working mode.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a self-propelled ware, includes automatic clutch and the differential mechanism of being connected with two semi-axles, the differential mechanism includes rotatory casing, automatic clutch is including the fixed clutch spare that can automatic joint and separation and move the clutch spare, move the clutch spare and can drive the rotation of fixed clutch spare when being engaged with fixed clutch spare, a serial communication port, self-propelled ware still includes the bearing that is used for connecting differential mechanism and automatic clutch, fixed clutch spare empty cover is on one of them semi-axle, rotatory casing and fixed clutch spare all with the inner circle fixed connection of bearing, rotatory casing's outside cover is equipped with the fixed shell, be provided with the step on the medial surface of fixed shell, the outer lane terminal surface of bearing supports and leans on step department.
The fixed clutch piece and the rotary shell are fixedly connected through the inner ring of the bearing, so that the bearing, the fixed clutch piece and the rotary shell are connected into a whole; the fixed clutch piece is sleeved on the half shaft in an empty mode, so that the fixed clutch piece and the rotary shell are arranged on the half shaft; and the end face of the bearing outer ring is positioned on the step of the fixed shell, so that the distance between the fixed shell and the differential rotating shell is short. The integral connection and position relationship among the fixed shell, the bearing, the differential mechanism and the fixed clutch part enable the self-propelled device to be compact in structure.
After the movable clutch member and the fixed clutch member are automatically engaged, the self-propelled device completes the switching from the manual pushing mode to the automatic walking mode. Under the automatic walking mode, the movable clutch part drives the fixed clutch part to rotate, and the bearing synchronously drives the differential mechanism to rotate, so that two half shafts on the differential mechanism rotate, and the automatic walking of the self-walking device is realized. When the self-propelled vehicle runs automatically, because the fixed clutch piece is sleeved on the half shaft in an empty way, the rotation of the fixed clutch piece and the half shaft can not interfere with each other, the differential turning of the two half shafts is ensured to be smooth, the end face of the outer ring of the bearing is abutted against the step of the fixed shell, namely, the bearing, the fixed clutch piece and the rotary shell are axially positioned through the step, the axial shaking of the fixed clutch piece and the rotary shell in the moving process is reduced, a rotor is arranged between the outer ring and the inner ring of the bearing, the end face positioning of the outer ring of the bearing can not influence the rotation of the inner ring of the bearing, the stable and smooth rotation of the fixed clutch piece and the rotary shell is ensured, and the self-propelled vehicle runs stably and smoothly in the automatic running mode.
After the movable clutch member and the fixed clutch member are automatically separated, the self-walking device completes the switching from the automatic walking mode to the manual pushing mode. Under manual pushing mode, because the clutch has been automatic separating, and decide clutch spare empty cover on the semi-axis, be connected through the bearing that has the roller between rotatory casing and the clutch spare surely, even be connected with on the rotatory casing and decide the clutch spare, also can not hinder the motion of differential mechanism, differential mechanism can normal operating, and two semi-axes also can smooth and easy rotation, realize easily pushing and nimble turning, make the self-propelled ware operate steadily smooth and easy when manual pushing running state.
The bearing is usually used for supporting parts, and the invention breaks through the conventional use method of the bearing, develops a new use method of the bearing, and ensures that the self-propelled device has compact structure and stable and smooth operation. The self-propelled vehicle has the functions of automatically completing switching of working modes and flexibly turning, is compact in structure, and can stably and smoothly run in all working modes.
In the self-propelled device, an annular gap is formed between the outer side surface of the bearing outer ring and the inner side surface of the fixed housing.
The setting of annular space makes things convenient for the bearing to place in the fixed bolster and makes the terminal surface of bearing outer lane support and lean on carrying out accurate location on the step, avoids the lateral surface card of bearing outer lane to influence axial positioning on the medial surface of fixed bolster to avoid taking place to interfere between fixed clutch spare and the semi-axis and influence the operation of self-propelled ware, guarantee that the self-propelled ware operates steadily smoothly under each mode.
In the self-propelled device, the rotary shell and the fixed clutch piece are respectively positioned at two ends of the bearing, one end of the rotary shell, which is connected with the bearing, is a first connecting end, a first protruding connecting boss is arranged on the end face of the first connecting end, the first connecting boss is inserted into the bearing inner ring, the outer side face of the first connecting boss is in interference fit with the inner side face of the bearing inner ring, and the end face of the first connecting end abuts against the end face, opposite to the first connecting end, of the bearing inner ring; the fixed clutch part is characterized in that one end, connected with the bearing, of the fixed clutch part is a second connecting end, a second connecting boss protruding is arranged on the end face of the second connecting end, the second connecting boss is inserted into the bearing inner ring, the outer side face of the second connecting boss is in interference fit with the inner side face of the bearing inner ring, and the end face of the second connecting end abuts against the end face, opposite to the end face of the second connecting end, of the bearing inner ring.
The rotary shell and the fixed clutch piece are fixed with the bearing inner ring in an interference fit manner through the first connecting boss and the second connecting boss, and are axially positioned through the end face of the first connecting end and the end face of the second connecting end, so that the structure among the rotary shell, the fixed clutch piece and the bearing is more compact, the fixed connection structure of the rotary shell, the fixed clutch piece and the bearing inner ring is more stable, and the self-propelled device is ensured to run stably and smoothly under each working mode.
In the self-propelled device, a gap is formed between the end face of the first connecting boss and the end face of the second connecting boss. The setting of clearance guarantees that rotatory casing and decides clutch and all be connected with the bearing location when installing with the bearing, avoids rotatory casing and decides the clutch contact and influences the accuracy of installation location, guarantees that the self-propelled ware operation is stable smooth and easy.
In the self-propelled device, a bolt is connected between the first connecting boss and the second connecting boss, a bolt through hole is formed in the fixed clutch piece, the rod portion of the bolt penetrates into the bolt through hole and is in threaded connection with the first connecting boss, and the head portion of the bolt abuts against the hole edge of the bolt through hole. After the rotary shell, the fixed clutch piece and the bearing are installed and fixed, the fixed connection among the rotary shell, the fixed clutch piece and the bearing is further reinforced through bolts, and the stable and smooth running of the self-propelled device is further ensured.
In the self-propelled vehicle, the self-propelled vehicle further comprises a driving source, the driving source is connected with the driving member and drives the driving member to rotate, the driving member, the movable clutch member and the fixed clutch member are sleeved on the same half shaft in an empty mode, the movable clutch member is located between the driving member and the fixed clutch member, the end face, opposite to the movable clutch member, of the driving member is provided with a protruding driving block, the end face, opposite to the driving member, of the movable clutch member is provided with a protruding pushing block, the driving block is correspondingly arranged with the pushing block, the side face of the pushing block is provided with a pushing surface which is obliquely arranged, the side face of the driving block is provided with a driving surface which is opposite to the pushing surface and obliquely arranged, when the driving member rotates, the driving surface is abutted to the pushing surface and slides on the pushing surface, and when the driving member stops rotating, the fixed clutch member can act on the movable clutch member to enable the pushing surface to be separated from the driving block, and the movable clutch member is separated from the fixed clutch member.
When the driving source works, the driving piece rotates, the driving block on the driving piece is propped against the pushing surface and slides on the pushing surface, and the pushing surface is obliquely arranged, so that the driving piece generates tangential force and axial force on the moving clutch piece, the moving clutch piece is pushed to rotate, and the moving clutch piece is pushed to approach the fixed clutch piece, the moving clutch piece is jointed with the fixed clutch piece, the driving piece, the moving clutch piece and the fixed clutch piece are connected into a whole to synchronously rotate, and the self-propelled device automatically completes the switching from the manual pushing mode to the automatic walking mode. In the automatic walking mode, the end face of the outer ring of the bearing stably abuts against the step due to the axial thrust generated by the driving part, so that axial movement is avoided, and the self-walking device stably and smoothly operates in the automatic walking mode. When the driving source stops working, the driving part stops rotating, the fixed clutch part acts on the movable clutch part to separate the pushing surface from the driving block, the movable clutch part and the fixed clutch part are automatically separated, and the self-walking device automatically completes the switching from the automatic walking mode to the manual pushing mode. In the process of completing the manual pushing mode switching, the driving block is separated from the pushing surface, and the driving block of the driving part cannot interfere the separation of the movable clutch part from the fixed clutch part, so that the smooth completion of the switching process is ensured. In the manual pushing mode, the fixed clutch part, the movable clutch frame and the driving part are all in a separation state, the movement of the fixed clutch part cannot be interfered by the movable clutch part and the driving part, and the self-propelled device can be manually pushed to smoothly run and can also flexibly turn. The automatic clutch can automatically complete the switching of corresponding working modes according to the working state of the driving source, is assembled to enable the self-propelled device to have the capability of automatically completing the switching of the working modes, and the driving piece, the movable clutch piece and the positioning clutch piece are sleeved on the same half shaft, so that the self-propelled device is compact in structure and stable and smooth in operation under each working mode by matching with the arrangement of the bearing. When the driving surface is abutted against the pushing surface, the movable clutch part is driven to rotate, so that the structure of the driving part and the movable clutch part is more stable when the driving part is connected, the stress is more uniform, and the self-propelled device can further run stably and smoothly in an automatic shape mode.
In the self-propelled device, the driving blocks are multiple and uniformly distributed along the circumferential direction, the pushing blocks are in one-to-one correspondence with the driving blocks, the pushing blocks are arranged in a staggered manner with the driving blocks and are inserted between two adjacent driving blocks, the side surface of the driving block, which is opposite to the driving surface, is a first heteroside surface, the side surface of the pushing block, which is opposite to the pushing surface, is a second heteroside surface, and the opposite heteroside surfaces are always in a separated state in the process of connecting and separating the fixed clutch piece and the movable clutch piece.
The driving blocks and the pushing blocks are uniformly distributed and are staggered, so that the driving blocks and the pushing blocks can be uniformly stressed when being connected; the pushing blocks are inserted between two adjacent driving blocks, so that the driving surface and the pushing surface are smoothly and rapidly connected in an abutting mode, the automatic walking mode is rapidly and accurately switched, and smooth and stable operation of the self-walking device in the automatic walking mode is ensured. The opposite first and second opposite sides are always in a separation state in the process of the engagement and separation of the fixed clutch piece and the movable clutch piece, so that the movement of the movable clutch piece can not be blocked by the first opposite side and the second opposite side in the process of switching the working modes of the self-propelled device, the smooth switching of the working modes is completed, and the smooth and stable operation of the self-propelled device in each working mode is ensured.
In the above-mentioned self-propelled device, the end face of the movable clutch member, which is disposed opposite to the fixed clutch member, has a protruding movable engaging portion, the movable engaging portion has a plurality of movable engaging teeth disposed uniformly in the circumferential direction, the movable engaging teeth have a first engaging surface and a first separating surface disposed obliquely in the circumferential direction, the first separating surface is disposed in the same direction as the pushing surface in the circumferential direction, the fixed clutch member has a protruding fixed engaging portion disposed opposite to the movable engaging portion, the fixed engaging portion has a fixed engaging groove capable of engaging with the movable engaging teeth, the groove wall of the fixed engaging groove has a second engaging surface and a second separating surface disposed opposite to each other, and when the movable engaging teeth are engaged in the fixed engaging groove, the first engaging surface is opposite to the engaging surface and the first separating surface is opposite to the second separating surface.
When the automatic clutch is engaged, the driving part rotates, the driving surface is abutted against the pushing surface to drive the movable clutch part to rotate, meanwhile, the movable clutch part is driven to approach the fixed clutch part, the movable engaging teeth are inserted into the fixed engaging grooves, the first engaging surface and the second engaging surface are opposite and mutually abutted to realize the engagement of the movable clutch part and the fixed clutch part, and the movable clutch part drives the fixed clutch part and the rotary shell to synchronously rotate. When the automatic clutch is separated, the driving part stops rotating, the fixed clutch part continues rotating in the same direction, the movable clutch part loses power, the fixed clutch part and the movable clutch part form differential speed, the first joint surface is separated from the second joint surface, the first joint surface is abutted against the second joint surface, the first joint surface is obliquely arranged, the fixed joint part drives the movable clutch part to rotate in the same direction and away from the fixed clutch part, the first joint surface and the pushing surface are in the same direction in the circumferential direction, the pushing surface is separated from the driving surface, the first different side surface and the second different side surface are in a separated state, the movable clutch part is smoothly separated from the fixed clutch part, the self-propelled device can smoothly complete the switching of a manual pushing mode, and the self-propelled device can stably and smoothly run in the manual pushing mode.
In the self-propelled device, an elastic pressing piece is fixed on the fixed shell, and the elastic pressing piece is elastically abutted against the outer side face of the movable clutch piece.
When the manual pushing mode is switched, the movable clutch piece rotates along with the half shaft through the differential mechanism in the manual pushing process, the elastic pressing piece abuts against the outer side face of the movable clutch piece, and the movable clutch piece losing power has a speed reducing effect, so that differential rotation between the movable clutch piece and the fixed clutch piece is realized faster, the movable clutch piece is separated from the fixed clutch piece faster, and smooth and stable operation of the self-propelled device in the manual pushing mode is ensured.
In the self-propelled device, the self-propelled device further comprises a speed change mechanism, the speed change mechanism comprises a planetary gear speed reduction assembly connected with the driving source and a gear set transmission assembly connected with the planetary gear speed reduction assembly, an engaged gear ring is arranged on the outer side face of the driving piece, and the engaged gear ring is engaged and connected with the gear set transmission assembly.
The planetary gear speed reducing assembly comprises a gear ring, a sun gear, a planetary gear and a planetary gear carrier, wherein the sun gear is positioned at the center of the gear ring and connected with a driving source, the planetary gear is positioned between the gear ring and the sun gear and meshed with the gear ring and the sun gear respectively, the planetary gear carrier comprises a rotating shaft, one end of the rotating shaft is provided with a supporting frame, the supporting frame is provided with the rotating shaft, the planetary gear is sleeved on the rotating shaft and can rotate around the rotating shaft, and the planetary gear is generally provided with a plurality of, preferably three planetary gears. The planetary gear speed reducing assembly has a speed reducing effect and is stable and compact in structure. The gear set transmission component is a gear set formed by one gear or a plurality of gears. When the gear set transmission component is a gear, the gear is fixed on the rotating shaft of the planet carrier and is meshed with the meshed gear ring of the driving part. When the gear set transmission component is a plurality of gears, the gear set transmission component comprises a driving wheel, a first intermediate gear and a second intermediate gear, the driving wheel is fixed on a rotating shaft of the planet carrier, the first intermediate gear is meshed with the driving wheel, the second intermediate gear is meshed with a meshed gear ring of the driving part, and the first intermediate gear and the second intermediate gear are coaxially connected and fixed. The driving source is connected with the driving part through the speed change mechanism and transmits motion, so that the force and motion transmission is stable, the self-propelled device can stably and smoothly run, and meanwhile, the structure of the automatic device is compact.
In the self-propelled device, the differential mechanism further comprises two half-shaft gears, the two half-shaft gears are respectively located at two ends of the rotary shell and are respectively connected with the two half shafts, a pin shaft is fixed in the rotary shell, two ends of the pin shaft are respectively sleeved with a differential planet wheel, and the differential planet wheels are located between the two half-shaft gears and meshed with the two half-shaft gears. The differential mechanism with the structure can enable the self-propelled device to flexibly turn, and is compact in structure and stable in operation.
Compared with the prior art, the invention has the following advantages:
the self-propelled device is provided with the differential mechanism and the automatic clutch simultaneously, and is connected with the self-propelled device through the bearing, the fixed clutch piece and the rotary shell are fixedly connected with the inner ring of the bearing, and the end face of the outer ring of the bearing is propped against the step of the fixed shell, so that the self-propelled device has the functions of automatically completing the switching of the working modes and flexibly turning, is compact in structure, and can stably and smoothly run in all the working modes. The setting of annular space, fixed knot structure's setting between rotatory casing and the fixed clutch spare and the bearing guarantees that the installation location is accurate and connect stably, further guarantees that the self-propelled ware operation is stable smooth and easy. The structure of the automatic clutch is matched with the arrangement of the bearing, so that the self-propelled device has compact structure and stable and smooth work.
Drawings
FIG. 1 is a perspective view of the present self-propelled vehicle;
FIG. 2 is a cross-sectional view of the present self-propelled apparatus;
FIG. 3 is an exploded view of the automatic clutch of the present self-propelled vehicle;
FIG. 4 is an exploded view of the automatic clutch of the present self-propelled vehicle;
FIG. 5 is a perspective view of the present self-propelled vehicle with the stationary housing cut away in the self-propelled mode;
FIG. 6 is a perspective view of the present self-propelled vehicle with the stationary housing cut away in the self-propelled mode;
fig. 7 is a perspective view showing an internal structure of the differential in the self-propelled vehicle.
In the figure, 1, a fixed shell; 1a, a cover body; 1a1, steps; 1b, a seat board; 2. a left half shaft; 3. a right half shaft; 4. a differential; 4a, rotating the shell; 4a1, a first connecting end; 4a2, a first connecting boss; 4a3, gap; 4b, side gears; 4c, a pin shaft; 4d, a differential planet wheel; 5. an automatic clutch; 6. a fixed clutch member; 6a, a second connecting end; 6b, connecting the second boss; 6c, bolt through holes; 6d, fixing the jogged part; 6e, fixing the jogged groove; 6e1, joint surface two; 6e2, separating surface two; 7. a movable clutch member; 7a, pushing the block; 7a1, a pushing surface; 7a2, a second opposite side; 7b, a movable jogged part; 7c, moving the jogged teeth; 7c1, joint surface one; 7c2, separating surface one; 7d, limiting a first convex ring; 7e, limiting a second convex ring; 8. a driving member; 8a, a driving block; 8a1, a driving surface; 8a2, the first opposite side; 8b, a limiting convex ring III; 8c, meshing the gear ring; 9. a bearing; 9a, annular gap; 11. a driving source; 12. elastic tabletting; 13. a speed change mechanism; 14. a dust cover.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1 to 7, a self-propelled vehicle includes a differential 4, an automatic clutch 5, a drive source 11, and a transmission mechanism 13. The differential mechanism 4 is connected with two half shafts, namely a left half shaft 2 and a right half shaft 3. The differential 4 includes a rotary case 4a, and both right and left ends of the rotary case 4a are provided with a side gear 4b, which is a left side gear and a right side gear, respectively, each of which is disposed in an inner cavity of the rotary case 4 a. The left half shaft gear is connected with the left half shaft 2, the right half shaft gear is connected with the right half shaft 3, and the left half shaft 2 and the right half shaft 3 are coaxially arranged. Two differential planet gears 4d connected through a pin shaft 4c are further arranged in the rotary shell 4a, the two differential planet gears 4d are located between the left half shaft gear and the right half shaft gear and meshed with the left half shaft gear and the right half shaft gear, and the pin shaft 4c is fixed on the rotary shell 4a and is perpendicular to the left half shaft 2. The outer end of the left half shaft 2 is connected with a roller, and the outer end of the right half shaft 3 is also connected with a roller. The side gear 4b and the differential planet gear 4d are bevel gears. The differential 4 of the above structure is compact and stable in operation.
The automatic clutch 5 is arranged on one of the half shafts, and the embodiment takes the right half shaft 3 as an example; when the automatic clutch 5 is arranged on the left half shaft 2, the left and right positions of relevant parts are opposite. The automatic clutch 5 comprises a fixed clutch member 6, a movable clutch member 7 and a driving member 8, wherein the fixed clutch member 6, the movable clutch member 7 and the driving member 8 are sequentially sleeved on the right half shaft 3 from inside to outside, the fixed clutch member 6 is fixedly connected with the rotary shell 4a, the movable clutch member 7 can slide on the right half shaft 3, the movable clutch member 7 is close to the fixed clutch member 6 and can be connected with the fixed clutch member 6, and the movable clutch member 7 is far away from the fixed clutch member 6 and can be separated from the movable clutch member 7. The movable clutch member 7 has a projecting movable engaging portion 7b on an end surface thereof facing the fixed clutch member 6, the movable engaging portion 7b has a plurality of movable engaging teeth 7c uniformly arranged in the circumferential direction, the movable engaging teeth 7c have an engaging surface one 7c1 and a separating surface one 7c2 facing the opposite direction in the circumferential direction, and the separating surface one 7c2 is inclined. The fixed clutch 6 has a fixed engaging portion 6d protruding from an end surface thereof facing the movable clutch 7 and corresponding to the movable engaging portion 7b, the fixed engaging portion 6d has a fixed engaging groove 6e engageable with the movable engaging tooth 7c, the groove wall of the fixed engaging groove 6e has a second engaging surface 6e1 and a second separating surface 6e2 facing each other, the second separating surface 6e2 is inclined, and the second separating surface 6e2 is inclined at the same angle as the first separating surface 7c 2. When the movable engagement tooth 7c is engaged in the fixed engagement groove 6e, the first engagement surface 7c1 and the second engagement surface 6e1 face each other and can be abutted against each other, and the first separation surface 7c2 and the second separation surface 6e2 face each other and can be abutted against each other.
The end face of the driving member 8 opposite to the movable clutch member 7 is provided with a plurality of protruding driving blocks 8a, and the driving blocks 8a are uniformly distributed along the circumferential direction, typically three driving blocks are provided, and two or four driving blocks can be provided. The side surface of the driving block 8a has a driving surface 8a1 arranged obliquely, and the side surface of the driving block 8a opposite to the driving surface 8a1 is a different side surface 8a2. The driving member 8 has an engagement ring gear 8c on the outer side surface thereof, and both ends of the engagement ring gear 8c protrude from the end surfaces of the driving member 8. The end faces of the movable clutch piece 7, which are opposite to the driving piece 8, are provided with protruding pushing blocks 7a, the pushing blocks 7a are in one-to-one correspondence with the driving blocks 8a, the pushing blocks 7a are staggered with the driving blocks 8a, the pushing blocks 7a are inserted between two adjacent driving blocks 8a, the side faces of the pushing blocks 7a are provided with pushing faces 7a1 which are obliquely arranged, the pushing faces 7a1 are the same as the separating faces 7c2 in the circumferential direction, the pushing faces 7a1 are opposite to the driving faces 8a1, the inclination angles are the same, and when the driving piece 8 rotates, the driving faces 8a1 are abutted to the pushing faces 7a1 and slide on the pushing faces 7a 1. The side surface of the pushing block 7a opposite to the driving surface 8a1 is a second opposite side surface 7a2, and the opposite first opposite side surface 8a2 and the second opposite side surface 7a2 are always in a separated state in the process of engaging and disengaging the fixed clutch member 6 and the movable clutch member 7.
The end face of the movable clutch piece 7 opposite to the fixed clutch piece 6 is provided with a first limiting convex ring 7d, the end face of the movable clutch piece 7 opposite to the driving piece 8 is provided with a second limiting convex ring 7e, and the end face of the driving piece 8 opposite to the movable clutch piece 7 is provided with a third convex limiting convex ring 8b. The first limiting convex ring 7d can be abutted against the fixed clutch piece 6, and the second limiting convex ring 7e can be abutted against the third limiting convex ring 8b. When the second limiting convex ring 7e is abutted against the third limiting convex ring 8b, a gap is formed between the end face of the pushing block 7a and the end face of the driving member 8, a gap is also formed between the end face of the driving block 8a and the end face of the opposite movable clutch member 7, and the movable clutch member 7 and the fixed clutch member 6 are in a separated state. The first limiting convex ring 7d, the second limiting convex ring 7e and the third limiting convex ring 8b limit the axial movement of the movable clutch piece 7, prevent the automatic clutch 5 from malfunctioning caused by the excessive movement, and are beneficial to the stable and smooth operation of the self-propelled device.
The drive source 11 is provided with a rotation shaft which is arranged in parallel with the right half shaft 3 and is connected to the speed change mechanism 13. The driving source 11 is typically an electric motor or an engine, and when the driving source 11 is an electric motor, a dust cover 14 is further provided on the outside of the driving source 11. The speed change mechanism 13 comprises a planetary gear speed reduction assembly and a gear set transmission assembly, the planetary gear speed reduction assembly comprises a gear ring, a sun gear fixedly connected with a rotating shaft, a planetary gear arranged between the gear ring and the sun gear and a planetary gear carrier connected with the planetary gear, the sun gear is positioned at the center of the gear ring, the planetary gear is respectively meshed with the gear ring and the sun gear, the planetary gear carrier comprises a rotating shaft, one end of the rotating shaft is provided with a supporting frame, the supporting frame is provided with the rotating shaft, the planetary gear is sleeved on the rotating shaft and can rotate around the rotating shaft, and one or more planetary gears, preferably two, three or four planetary gears are generally arranged. The gear set transmission assembly comprises a driving wheel connected with the rotating shaft of the planet wheel carrier, a first intermediate gear meshed with the driving wheel and a second intermediate gear meshed with the meshed gear ring 8c of the driving part 8, wherein the first intermediate gear and the second intermediate gear are coaxially arranged. The gear set transmission assembly may be provided as a plurality of gears or as a single gear as desired.
The self-propelled device further comprises a fixing shell 1, wherein the fixing shell 1 comprises a cover body 1a and a seat board 1b which are mutually covered and fixed, the right end of the cover body 1a is opened, and the seat board 1b is covered and fixed at the right end of the cover body 1a through screws. The cover body 1a comprises a first installation part and a second installation part, a first installation cavity is arranged in the first installation part, a second installation cavity is arranged in the second installation part, and the first installation cavity is communicated with the second installation cavity at the right end of the second installation part. The driving source 11 is fixed on the left end face of the first installation part, the rotating shaft of the driving source 11 is inserted into the first installation cavity, the speed change mechanism 13 is positioned in the first installation cavity, the gear ring is fixed on the cavity wall of the first installation cavity, and the differential mechanism 4 and the automatic clutch 5 are positioned in the second installation cavity. The left end face of the second installation part is provided with a left bearing hole, a left support bearing is installed in the left bearing hole, and the left half shaft 2 is fixed in the left support bearing and extends out of the left bearing hole. The right end face of the seat board 1b is provided with a right bearing hole, a right support bearing is arranged in the right bearing hole, and a right half shaft 3 is fixed in the right support bearing and extends out of the right bearing hole. The two half shafts and the fixed shell 1 form a support through a left support bearing and a right support bearing. The left half shaft 2 is fixedly provided with a first baffle plate, the first baffle plate is positioned in the fixed shell 1, and the left end stop of the rotary shell 4a is positioned on the first baffle plate. A second baffle plate is fixed on the right half shaft 3, the second baffle plate is positioned on the outer side of the driving part 8, and the driving part 8 is stopped and positioned on the second baffle plate.
The self-propelled device further comprises a bearing 9 for connecting the differential mechanism 4 and the automatic clutch 5, the rotary shell 4a and the fixed clutch piece 6 are respectively positioned at two ends of the bearing 9, and the rotary shell 4a and the fixed clutch piece 6 are fixedly connected with the inner ring of the bearing 9. The end of the rotary shell 4a connected with the bearing 9 is a first connecting end 4a1, a first protruding connecting boss 4a2 is arranged on the end face of the first connecting end 4a1, the first connecting boss 4a2 is inserted into the inner ring of the bearing 9, the outer side face of the first connecting boss 4a2 is in interference fit with the inner side face of the inner ring of the bearing 9, and the end face of the first connecting end 4a1 abuts against the end face of the inner ring of the bearing 9 opposite to the first connecting end 4a 1. The end of the fixed clutch piece 6 connected with the bearing 9 is a second connecting end 6a, a second protruding connecting boss 6b is arranged on the end face of the second connecting end 6a, the second connecting boss 6b is inserted into the inner ring of the bearing 9, the outer side face of the second connecting boss 6b is in interference fit with the inner side face of the inner ring of the bearing 9, and the end face of the second connecting end 6a abuts against the end face of the inner ring of the bearing 9 opposite to the second connecting end 6 a. A gap 4a3 is provided between the end face of the first connecting boss 4a2 and the end face of the second connecting boss 6 b. A bolt (not shown in the figure) is connected between the first connecting boss 4a2 and the second connecting boss 6b, a bolt through hole 6c is formed in the fixed clutch piece 6, the bolt through hole 6c penetrates through the end face of the second connecting boss 6b, the rod portion of the bolt penetrates into the bolt through hole 6c and is in threaded connection with the first connecting boss 4a2, and the head portion of the bolt abuts against the hole edge of the bolt through hole 6 c. The fixed clutch piece 6 and the rotary shell 4a can be fixedly connected with the inner ring of the bearing 9 through a screw, the screw passes through the first connecting end 4a1 to be in threaded connection with the inner ring of the bearing 9, and the screw passes through the second connecting end 6a to be in threaded connection with the inner ring of the bearing 9.
The second mounting portion has a step 1a1 provided on an inner side surface thereof, and an outer ring end surface of the bearing 9 abuts against the step 1a 1. An annular gap 9a is formed between the outer side surface of the outer ring of the bearing 9 and the inner side surface of the fixed shell 1. The cover body 1a is internally provided with elastic sheets, each elastic sheet comprises a fixed plate and elastic pressing sheets 12 arranged on the fixed plate, the fixed plate is fixed on the fixed shell 1, the two elastic pressing sheets 12 are respectively positioned at two sides of the movable clutch piece 7, and the elastic pressing sheets 12 elastically lean against the outer side face of the movable clutch piece 7. The elastic pressing piece 12 may be a single piece and provided outside the movable clutch member 7.
The self-propelled device is fixed on the machine shell of the lawn mower through the seat board 1b, the driving source 11 is connected with the controller, and the controller controls the driving source 11 to work and stop working. Switching from the manual pushing mode to the automatic walking mode: the driving source 11 is operated by the controller, when the driving source 11 is operated, the rotating shaft on the driving source 11 rotates, the driving piece 8 rotates by the speed change mechanism 13, the driving surface 8a1 is abutted against the pushing surface 7a1 and slides on the pushing surface 7a1, the movable clutch piece 7 is driven to rotate and approach the fixed clutch piece 6, the embedded teeth are embedded into the embedded grooves, the first 7c1 and the second 6e1 joint surfaces are abutted against each other, the driving piece 8, the movable clutch piece 7 and the fixed clutch piece 6 are connected into a whole and synchronously rotate, the rotating shell 4a rotates by the bearing 9, the left half shaft 2 and the right half shaft 3 are driven to rotate, automatic walking of the autonomous device is realized, and the switching from the manual pushing mode to the automatic walking mode is automatically completed. Switching from the manual pushing mode to the automatic walking mode: the driving source 11 stops working through the controller, after the driving source 11 stops working, the rotating shaft on the driving source 11 stops rotating, the driving piece 8 also stops rotating, the manual pushing self-propelled device is manually driven by the fixed clutch piece 6 along with the rotating shell 4a, the movable clutch piece 7 and the fixed clutch piece 6 do not rotate in a differential speed under the driving of the driving piece 8, the first joint surface 7c1 and the second joint surface 6e1 are separated, the first joint surface 7c2 and the second joint surface 6e2 are abutted, the fixed clutch piece 6 drives the movable clutch piece 7 to rotate through the second joint surface 6e2 and enables the movable clutch piece 7 to approach the driving piece 8, after the movable clutch piece 7 rotates, the driving surface 8a1 is separated from the pushing surface 7a1, the movable clutch piece 7 approaches the driving piece 8, the embedded teeth are separated from the embedded groove, the fixed clutch piece 6, the movable clutch piece 7 and the driving piece 8 are separated from each other, and the automatic walking mode is automatically switched to the manual pushing mode.
The fixed clutch piece 6 and the rotary shell 4a are fixedly connected through the inner ring of the bearing 9, so that the bearing 9, the fixed clutch piece 6 and the rotary shell 4a are connected into a whole; the fixed clutch piece 6, the movable clutch piece 7 and the driving piece 8 are all sleeved on the right half shaft 3 in a hollow mode, so that space in the fixed shell 1 is saved; and the end face of the outer ring of the bearing 9 is positioned on the step 1a1 of the fixed casing 1, so that the fixed casing 1 is close to the rotating casing 4a of the differential 4, and the volume of the fixed casing 1 is reduced. The overall connection and positional relationship among the stationary housing 1, the bearing 9, the differential 4 and the automatic clutch 5 makes the self-propelled device compact. The arrangement of the positions of the drive source 11 and the speed change mechanism 13, and the spatial arrangement of the stationary housing 1 further make the self-propelled apparatus compact.
During automatic walking, as the fixed clutch piece 6, the movable clutch piece 7 and the driving piece 8 are all sleeved on the right half shaft 3, the rotation of the integrated automatic clutch 5 and the right half shaft 3 can not interfere with each other, the differential turning and linear walking smoothness of the left half shaft 2 and the right half shaft 3 is ensured, the outer ring end face of the bearing 9 is abutted against the step 1a1, namely, the bearing 9, the automatic clutch 5 and the rotary shell 4a are axially positioned through the step 1a1, the axial force of the driving piece 8 enables the end face of the outer ring of the bearing 9 to be abutted against the step 1a1 more stably, the axial movement of the automatic clutch 5 and the differential 4 in the moving process is avoided, the rotor is arranged between the outer ring and the inner ring of the bearing 9, the rotation of the inner ring of the bearing 9 can not be influenced through the end face positioning of the outer ring of the bearing 9, the stable and smooth rotation of the automatic clutch 5 and the rotary shell 4a is ensured, and the running stability and smoothness of the self-walking device in the automatic walking mode are ensured. In the manual pushing mode, the fixed clutch member 6, the movable clutch member 7 and the driving member 8 are separated from each other due to the structural characteristics of the fixed clutch member 6, the separation process is not hindered, and the rotating housing 4a is connected with the fixed clutch member 6 through the bearing 9 with the rotor, so that even if the fixed clutch member 6 is connected to the rotating housing 4a, the differential mechanism 4 is not hindered, the differential mechanism 4 can normally operate, easy pushing and flexible turning are realized, and the self-propelled vehicle is stable and smooth in operation in the manual pushing operation state. On the basis that the self-propelled vehicle has the functions of automatically completing switching of working modes and flexible turning, the self-propelled vehicle is compact in structure and stable and smooth in operation under all working modes.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The utility model provides a self-propelled ware, includes automatic clutch (5) and differential mechanism (4) of being connected with two semi-axles, differential mechanism (4) are including rotatory casing (4 a), automatic clutch (5) are including the fixed clutch spare (6) that can automatic joint and separation and move clutch spare (7), move clutch spare (7) and can drive fixed clutch spare (6) rotation when being connected with fixed clutch spare (6), a serial communication port, self-propelled ware still includes bearing (9) that are used for connecting differential mechanism (4) and automatic clutch (5), fixed clutch spare (6) empty cover is on one of them semi-axle, rotatory casing (4 a) and fixed clutch spare (6) all are equipped with fixed shell (1) with the inner circle fixed connection of bearing (9), be provided with step (1 a 1) on the medial surface of fixed shell (1) outer lane, the terminal surface of bearing (9) supports and leans on step (1 a 1).
2. The self-propelled apparatus according to claim 1, wherein an annular gap (9 a) is provided between an outer side surface of the outer ring of the bearing (9) and an inner side surface of the stationary case (1).
3. The self-propelled device according to claim 1 or 2, wherein the rotary housing (4 a) and the fixed clutch member (6) are respectively positioned at two ends of the bearing (9), one end of the rotary housing (4 a) connected with the bearing (9) is a connecting end one (4 a 1), the end face of the connecting end one (4 a 1) is provided with a protruding connecting boss one (4 a 2), the connecting boss one (4 a 2) is inserted into the inner ring of the bearing (9), the outer side face of the connecting boss one (4 a 2) is in interference fit with the inner side face of the inner ring of the bearing (9), and the end face of the connecting end one (4 a 1) is abutted against the end face of the inner ring of the bearing (9) opposite to the connecting end one (4 a 1); the fixed clutch part (6) is characterized in that one end connected with the bearing (9) is a second connecting end (6 a), a second connecting boss (6 b) protruding is arranged on the end face of the second connecting end (6 a), the second connecting boss (6 b) is inserted into the inner ring of the bearing (9), the outer side face of the second connecting boss (6 b) is in interference fit with the inner side face of the inner ring of the bearing (9), and the end face of the second connecting end (6 a) abuts against the end face, opposite to the end face of the inner ring of the bearing (9) and the second connecting end (6 a).
4. A self-propelled device according to claim 3, wherein a bolt is connected between the first connecting boss (4 a 2) and the second connecting boss (6 b), a bolt through hole (6 c) is formed in the fixed clutch member (6), a rod portion of the bolt penetrates into the bolt through hole (6 c) and is in threaded connection with the first connecting boss (4 a 2), and a head portion of the bolt abuts against a hole edge of the bolt through hole (6 c).
5. The self-propelled device according to claim 1 or 2, further comprising a driving source (11), wherein the automatic clutch (5) further comprises a driving member (8), the driving source (11) is connected with the driving member (8) and drives the driving member (8) to rotate, the driving member (8), the movable clutch member (7) and the fixed clutch member (6) are sleeved on the same half shaft, the movable clutch member (7) is positioned between the driving member (8) and the fixed clutch member (6), the end surface of the driving member (8) opposite to the movable clutch member (7) is provided with a protruding driving block (8 a), the end surface of the movable clutch member (7) opposite to the driving member (8) is provided with a protruding pushing block (7 a), the driving block (8 a) is correspondingly arranged with the pushing block (7 a), the side surface (7 a 1) of the pushing block (7 a) is provided with a slope, the side surface (8 a) opposite to the pushing surface (7 a 1) is provided with a slope, when the movable clutch member (8) is pushed against the driving member (7 a) and the driving member (7 a) is enabled to be pushed against the driving member (7 a) when the driving member (7 a) is pushed against the driving member (7 a) 1), and the movable clutch member (7) is separated from the fixed clutch member (6).
6. The self-propelled vehicle according to claim 5, wherein the driving blocks (8 a) are plural and uniformly distributed along the circumferential direction, the driving blocks (7 a) are in one-to-one correspondence with the driving blocks (8 a), the driving blocks (7 a) are staggered with the driving blocks (8 a) and the driving blocks (7 a) are inserted between two adjacent driving blocks (8 a), the side surface of the driving block (8 a) opposite to the driving surface (8 a 1) is a first heteroside surface (8 a 2), the side surface of the driving block (7 a) opposite to the driving surface (7 a 1) is a second heteroside surface (7 a 2), and the opposite first heteroside surface (8 a 2) and the second heteroside surface (7 a 2) are always in a separated state in the process of engaging and disengaging the fixed clutch member (6) with the movable clutch member (7).
7. The self-propelled vehicle according to claim 5, wherein the movable clutch member (7) has a protruding movable engaging portion (7 b) on an end surface thereof facing the fixed clutch member (6), the movable engaging portion (7 b) has a plurality of movable engaging teeth (7 c) uniformly arranged in a circumferential direction, the movable engaging teeth (7 c) have a first engaging surface (7 c 1) and a first disengaging surface (7 c 2) facing in the circumferential direction, the first disengaging surface (7 c 2) is inclined, the first disengaging surface (7 c 2) is oriented in the circumferential direction in the same direction as the pushing surface (7 a 1), the fixed clutch member (6) has a protruding fixed engaging portion (6 d) facing the movable engaging portion (7 b), the fixed engaging portion (6 d) has a fixed engaging groove (6 e) capable of engaging with the movable engaging tooth (7 c), and the first engaging surface (6 e 1) and the second disengaging surface (6 e 2) facing in the circumferential direction are provided on a groove wall of the fixed engaging groove (6 e) and the first engaging surface (6 e) and the second engaging surface (6 e 2) facing in the circumferential direction.
8. The self-propelled apparatus as claimed in claim 1 or 2, wherein an elastic pressing piece (12) is fixed on the fixed housing (1), and the elastic pressing piece (12) elastically abuts against an outer side surface of the movable clutch member (7).
9. The self-propelled vehicle according to claim 5, further comprising a speed change mechanism (13), wherein the speed change mechanism (13) comprises a planetary reduction assembly connected with the driving source (11) and a gear set transmission assembly connected with the planetary reduction assembly, an engaging gear ring (8 c) is arranged on the outer side surface of the driving member (8), and the engaging gear ring (8 c) is in engagement connection with the gear set transmission assembly.
10. The self-propelled device according to claim 1 or 2, wherein the differential (4) further comprises two side gears (4 b), the two side gears (4 b) are respectively located at two ends of the rotary housing (4 a) and are respectively connected with the two half shafts, a pin shaft (4 c) is fixed in the rotary housing (4 a), differential planet gears (4 d) are respectively sleeved at two ends of the pin shaft (4 c), and the differential planet gears (4 d) are located between the two side gears (4 b) and are meshed with the two side gears (4 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849758.0A CN108716529B (en) | 2018-07-28 | 2018-07-28 | Self-propelled device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849758.0A CN108716529B (en) | 2018-07-28 | 2018-07-28 | Self-propelled device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108716529A CN108716529A (en) | 2018-10-30 |
| CN108716529B true CN108716529B (en) | 2023-12-12 |
Family
ID=63914386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810849758.0A Active CN108716529B (en) | 2018-07-28 | 2018-07-28 | Self-propelled device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108716529B (en) |
Citations (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1127389A (en) * | 1965-05-03 | 1968-09-18 | Leopold Franz Schmid | Clutching device for differential gears of motor vehicles |
| FR2061390A5 (en) * | 1969-09-15 | 1971-06-18 | Dana Corp | |
| JPH04302744A (en) * | 1991-03-29 | 1992-10-26 | Mazda Motor Corp | Vehicle transfer device |
| CN2119758U (en) * | 1991-08-20 | 1992-10-28 | 张兴国 | Multipurpose harvester |
| JPH0577653A (en) * | 1991-09-18 | 1993-03-30 | Mitsubishi Motors Corp | Right and left driving force distribution device for vehicle |
| JPH1078110A (en) * | 1996-08-30 | 1998-03-24 | Tochigi Fuji Ind Co Ltd | Differential device |
| JPH11270654A (en) * | 1998-03-25 | 1999-10-05 | Tochigi Fuji Ind Co Ltd | Fastening mechanism of friction clutch and differential gear provided with mechanism thereof |
| EP1142743A2 (en) * | 2000-04-07 | 2001-10-10 | Tochigi Fuji Sangyo Kabushiki Kaisha | Power transmission system and operation method therefor |
| JP2002031210A (en) * | 2000-07-12 | 2002-01-31 | Tochigi Fuji Ind Co Ltd | Differential gear |
| DE10312349B3 (en) * | 2003-03-20 | 2004-12-02 | Gkn Driveline International Gmbh | Differential transmission with integrated locking coupling for vehicle has housing containing differential cage, side shafts and side-shaft gear wheels |
| CN2847824Y (en) * | 2005-04-25 | 2006-12-20 | 泰安泰山福神齿轮箱有限责任公司 | Gear box for self-propelled combine |
| JP2008309337A (en) * | 2008-09-16 | 2008-12-25 | Ｇｋｎ ドライブライン トルクテクノロジー株式会社 | Fastening mechanism of friction clutch and differential device having this fastening mechanism |
| JP2009228840A (en) * | 2008-03-24 | 2009-10-08 | Ｇｋｎ ドライブライン トルクテクノロジー株式会社 | Differential device and driving system using this differential device |
| CN201349412Y (en) * | 2009-01-21 | 2009-11-25 | 李长民 | Walking self-propelled harvesting dryer |
| CN101697680A (en) * | 2009-10-30 | 2010-04-28 | 宁波市德霖机械有限公司 | Integrated control mechanism for automatic walking device clutch and continuously variable transmission of lawn mower |
| JP2010127422A (en) * | 2008-11-28 | 2010-06-10 | Mitsubishi Motors Corp | Lateral drive force distribution device |
| CN201595019U (en) * | 2010-02-10 | 2010-10-06 | 杨国栋 | Harvester gearbox |
| CN201640003U (en) * | 2010-03-18 | 2010-11-24 | 王成 | Wheeled self-propelled harvester gearbox |
| JP2011047422A (en) * | 2009-08-25 | 2011-03-10 | Gkn Driveline Japan Ltd | Power transmission device |
| US7938041B1 (en) * | 2008-08-18 | 2011-05-10 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Bi-directional overrunning clutched differential unit |
| JP2011122653A (en) * | 2009-12-10 | 2011-06-23 | Gkn Driveline Japan Ltd | Clutch device, and differential device using the same |
| US8312792B1 (en) * | 2008-08-18 | 2012-11-20 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Bi-directional overrunning clutched differential unit |
| CN103202136A (en) * | 2012-01-11 | 2013-07-17 | 杨健 | Grass cutting machine with automatic clutch |
| CN104723794A (en) * | 2015-02-10 | 2015-06-24 | 福建工程学院 | Hybrid-power integrated drive axle structure |
| EP3156693A2 (en) * | 2015-10-14 | 2017-04-19 | Dana Automotive Systems Group , LLC | Integrated active limited slip differential |
| JP2017163917A (en) * | 2016-03-17 | 2017-09-21 | 本田技研工業株式会社 | Walking lawn mower |
| JP2018059607A (en) * | 2016-10-07 | 2018-04-12 | 株式会社ジェイテクト | Differential device |
| JP2018059606A (en) * | 2016-10-07 | 2018-04-12 | 株式会社ジェイテクト | Differential device |
| RU2653936C1 (en) * | 2017-02-27 | 2018-05-15 | Василий Евгеньевич Гостев | Forced locking differential of a leading vehicle bridge |
| CN108045223A (en) * | 2018-01-15 | 2018-05-18 | 北京博格华纳汽车传动器有限公司 | A kind of new-energy automobile deceleration device |
| CN108235859A (en) * | 2016-12-23 | 2018-07-03 | 南京德朔实业有限公司 | Hand-push type self-driving travelling machine |
| CN208565482U (en) * | 2018-07-28 | 2019-03-01 | 台州建瓴工贸有限公司 | It is a kind of to walk device certainly |
-
2018
- 2018-07-28 CN CN201810849758.0A patent/CN108716529B/en active Active
Patent Citations (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1127389A (en) * | 1965-05-03 | 1968-09-18 | Leopold Franz Schmid | Clutching device for differential gears of motor vehicles |
| FR2061390A5 (en) * | 1969-09-15 | 1971-06-18 | Dana Corp | |
| JPH04302744A (en) * | 1991-03-29 | 1992-10-26 | Mazda Motor Corp | Vehicle transfer device |
| CN2119758U (en) * | 1991-08-20 | 1992-10-28 | 张兴国 | Multipurpose harvester |
| JPH0577653A (en) * | 1991-09-18 | 1993-03-30 | Mitsubishi Motors Corp | Right and left driving force distribution device for vehicle |
| JPH1078110A (en) * | 1996-08-30 | 1998-03-24 | Tochigi Fuji Ind Co Ltd | Differential device |
| JPH11270654A (en) * | 1998-03-25 | 1999-10-05 | Tochigi Fuji Ind Co Ltd | Fastening mechanism of friction clutch and differential gear provided with mechanism thereof |
| EP1142743A2 (en) * | 2000-04-07 | 2001-10-10 | Tochigi Fuji Sangyo Kabushiki Kaisha | Power transmission system and operation method therefor |
| JP2002031210A (en) * | 2000-07-12 | 2002-01-31 | Tochigi Fuji Ind Co Ltd | Differential gear |
| DE10312349B3 (en) * | 2003-03-20 | 2004-12-02 | Gkn Driveline International Gmbh | Differential transmission with integrated locking coupling for vehicle has housing containing differential cage, side shafts and side-shaft gear wheels |
| CN2847824Y (en) * | 2005-04-25 | 2006-12-20 | 泰安泰山福神齿轮箱有限责任公司 | Gear box for self-propelled combine |
| JP2009228840A (en) * | 2008-03-24 | 2009-10-08 | Ｇｋｎ ドライブライン トルクテクノロジー株式会社 | Differential device and driving system using this differential device |
| US8312792B1 (en) * | 2008-08-18 | 2012-11-20 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Bi-directional overrunning clutched differential unit |
| US7938041B1 (en) * | 2008-08-18 | 2011-05-10 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Bi-directional overrunning clutched differential unit |
| JP2008309337A (en) * | 2008-09-16 | 2008-12-25 | Ｇｋｎ ドライブライン トルクテクノロジー株式会社 | Fastening mechanism of friction clutch and differential device having this fastening mechanism |
| JP2010127422A (en) * | 2008-11-28 | 2010-06-10 | Mitsubishi Motors Corp | Lateral drive force distribution device |
| CN201349412Y (en) * | 2009-01-21 | 2009-11-25 | 李长民 | Walking self-propelled harvesting dryer |
| JP2011047422A (en) * | 2009-08-25 | 2011-03-10 | Gkn Driveline Japan Ltd | Power transmission device |
| CN101697680A (en) * | 2009-10-30 | 2010-04-28 | 宁波市德霖机械有限公司 | Integrated control mechanism for automatic walking device clutch and continuously variable transmission of lawn mower |
| JP2011122653A (en) * | 2009-12-10 | 2011-06-23 | Gkn Driveline Japan Ltd | Clutch device, and differential device using the same |
| CN201595019U (en) * | 2010-02-10 | 2010-10-06 | 杨国栋 | Harvester gearbox |
| CN201640003U (en) * | 2010-03-18 | 2010-11-24 | 王成 | Wheeled self-propelled harvester gearbox |
| CN103202136A (en) * | 2012-01-11 | 2013-07-17 | 杨健 | Grass cutting machine with automatic clutch |
| CN104723794A (en) * | 2015-02-10 | 2015-06-24 | 福建工程学院 | Hybrid-power integrated drive axle structure |
| EP3156693A2 (en) * | 2015-10-14 | 2017-04-19 | Dana Automotive Systems Group , LLC | Integrated active limited slip differential |
| JP2017163917A (en) * | 2016-03-17 | 2017-09-21 | 本田技研工業株式会社 | Walking lawn mower |
| JP2018059607A (en) * | 2016-10-07 | 2018-04-12 | 株式会社ジェイテクト | Differential device |
| JP2018059606A (en) * | 2016-10-07 | 2018-04-12 | 株式会社ジェイテクト | Differential device |
| CN108235859A (en) * | 2016-12-23 | 2018-07-03 | 南京德朔实业有限公司 | Hand-push type self-driving travelling machine |
| RU2653936C1 (en) * | 2017-02-27 | 2018-05-15 | Василий Евгеньевич Гостев | Forced locking differential of a leading vehicle bridge |
| CN108045223A (en) * | 2018-01-15 | 2018-05-18 | 北京博格华纳汽车传动器有限公司 | A kind of new-energy automobile deceleration device |
| CN208565482U (en) * | 2018-07-28 | 2019-03-01 | 台州建瓴工贸有限公司 | It is a kind of to walk device certainly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108716529A (en) | 2018-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0570889A1 (en) | Power tool plastic gear train | |
| US6679036B2 (en) | Drive gear shaft structure of a self-moving type mower | |
| CN105228793A (en) | There is the forced feed instrument of the removable gear for regulating feed rate | |
| US20110107733A1 (en) | Apparatus to improve modular cutterbar connecting shaft spline durability | |
| EP0444906B1 (en) | Flange mounting arrangement | |
| CN108716529B (en) | Self-propelled device | |
| JP2004316893A (en) | Torque transmitting coupling | |
| EP1493317B1 (en) | Bush cutter | |
| CA2482218C (en) | Power transmission mechanism | |
| CN208565482U (en) | It is a kind of to walk device certainly | |
| US5073159A (en) | Vehicle transmission | |
| CN201182102Y (en) | Brake device of garden tools | |
| CN112554118A (en) | Garden tool | |
| CN110024549A (en) | Self-propelled mower | |
| CN214245560U (en) | Garden tool | |
| CN218644772U (en) | Transmission and lawn mower | |
| JP4242755B2 (en) | Tractor | |
| CN212839239U (en) | Gear box for snow sweeper and grass mower | |
| CN210343060U (en) | Track transmission assembly | |
| CN219131925U (en) | Single motor drive planetary polishing device | |
| CN217225061U (en) | Transmission mechanism, polishing machine head and polishing machine | |
| CN215966373U (en) | High-efficient sword tower seal structure | |
| CN212643365U (en) | Clutch structure of electric drive assembly clutch | |
| CN216292183U (en) | Grass cutter | |
| JP4532325B2 (en) | Folding farm work machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |