CN107745608A - Omnidirectional's wheel load capacity improves structure - Google Patents
Omnidirectional's wheel load capacity improves structure Download PDFInfo
- Publication number
- CN107745608A CN107745608A CN201711037135.5A CN201711037135A CN107745608A CN 107745608 A CN107745608 A CN 107745608A CN 201711037135 A CN201711037135 A CN 201711037135A CN 107745608 A CN107745608 A CN 107745608A
- Authority
- CN
- China
- Prior art keywords
- ball
- wheel
- roller
- carrier bar
- hub face
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
- B60B19/12—Roller-type wheels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of omnidirectional's wheel load capacity to improve structure, it is to be supported on the ball supporting mechanism of corresponding idler wheel bottom taking turns to be equipped with the hub face of position corresponding to the big roller and trundle set with the circle spacing on wheel hub, the ball supporting mechanism includes the retainer of matching wheel position hub face shape, ball is laid with the retainer, the bottom of each ball is in rolling contact with wheel position hub face, and top and the roller of each ball are in rolling contact.The present invention is provided with ball as support member between wheel position hub face and roller so that the strong point of roller increases, therefore has disperseed the outside load for being applied to roller, improves bearing capacity of the roller only under rotary shaft support, and that has widened omni-directional wheel uses field.
Description
Technical field
The present invention relates to wheeled road walking mechanism, specially a kind of omnidirectional's wheel load capacity improves structure.
Background technology
Omni-directional wheel is the support component of wheeled road walking mechanism, and it can not only be used as by a normal wheels turns
Driving wheel uses, and controlled device can also be made to realize transverse shifting.Therefore, this element be widely used in trolley, conveyer,
The occasions such as freight, luggage truck.
Existing omni-directional wheel is broadly divided into two kinds, and one kind is two-wheel hub structure, and some driven rollings are uniformly distributed on its wheel hub
Wheel, adjacent rollers stagger certain angle；Another kind is single-wheel hub structure, and it is different alternately to install two kinds of diameters in its circumference of hub
Roller, while the outline of each roller is on same circumference.
When two-wheel hub structure omni-directional wheel rotates, roller gabarit differs with hub edge height, and ground connection position can be in two wheels
Roller on hub switches over, and the easy generation of difference in height of roller gabarit and hub edge is laterally left and right to wave, so as to cause
The unstable phenomenon of omni-directional wheel transverse movement.
When single-wheel hub structure omni-directional wheel rotates, because the gabarit of each roller is on same circumference, therefore it can protect
Demonstrate,prove the continuity and stationarity of omni-directional wheel lateral movement.
The roller of above two structure omni-directional wheel is supported using support shaft with bearing, and in order to ensure that roller is being tied
The contact point of continuity on structure, support shaft and wheel hub is generally only positioned at two of roller both sides.Obviously, consider the strong point across
The influence of degree, this two point-supported structure easily limit the load capacity of omni-directional wheel, should especially when roller is wider
Problem is more prominent.
The content of the invention
In view of the shortcomings of the prior art, the technical problems to be solved by the invention propose a kind of raising bearing capacity
Omnidirectional's wheel load capacity improves structure.
Can solve the problem that omnidirectional's wheel load capacity of above mentioned problem improves structure, and its technical scheme is included in and circumference on wheel hub
The ball support machine for being supported on corresponding idler wheel bottom is equipped with corresponding to spaced big roller and trundle on wheel position hub face
Structure, the ball supporting mechanism include the retainer of matching wheel hub surface shape, ball, each ball are laid with the retainer
Bottom with wheel position hub face be in rolling contact, top and the roller of each ball are in rolling contact.
A kind of structure of the retainer is by the ball carrier bar group that axially a plurality of ball carrier bar side by side is formed, length side
The chain block for including being hinged successively to each ball carrier bar for circumferencial direction, each chain block center offers the hole of bead of installation ball；It is right
Should in a plurality of ball carrier bar in opening up a plurality of groove on wheel position hub face, the section of the groove for matching ball sphere diameter semicircle
Shape.
The quantity of the ball carrier bar is determined that chain number of blocks is by correspondingly taking turns position hub face gabarit by the length for axially taking turns position hub face
Length (circumferencial direction) determines, axially takes turns position hub face and wheel position hub face gabarit length is longer, the number of corresponding ball carrier bar and chain block
Amount is more.
For effective fixed retainer, the both ends in the ball carrier bar group length direction are pressed on pair by the pressing plate of axial direction respectively
On the both ends that a hub face should be taken turns, the both sides of each groove are provided with corresponding to the hinged part of adjacent chain block makes hooking make itself and wheel in chain block
The hook that position hub face is brought into close contact is sincere.
Ball carrier bar is set to imbed wheel position hub face with appropriate length, one end of each bar ball carrier bar is provided with adjustable length
Joint, the pressing plate are pressed on the joint of ball carrier bar corresponding end.
To enable all balls to be contacted with roller, the wheel position hub face corresponds to the curved surface of idler wheel bottom shape for matching.
Beneficial effects of the present invention：
1st, in structure of the present invention, the ball one side back-up roller wheel in ball supporting mechanism retainer, on the other hand with wheel
Position hub face contact, the strong point of the roller on wheel position hub face is added, has disperseed the outside load for being applied to roller, so as to be lifted
The load capacity of omni-directional wheel, has widened the application of omni-directional wheel.
2nd, in structure of the present invention, ball carrier bar is formed by connecting by the chain block being hinged successively, ball carrier bar group is adapted to not
The wheel position hub face of similar shape, it is achieved thereby that ball carrier bar group is with taking turns being brought into close contact for position hub face.
3rd, in structure of the present invention, one end of ball carrier bar is provided with the joint of adjustable length, can be according to the different chis of roller
It is very little, the length of ball carrier bar is adjusted, ball carrier bar is imbedded wheel position hub face with suitable length, is additionally operable to adjust ball and roller
Support Position.
4th, in structure of the present invention, chain block is lived provided with the sincere hooking of hook, ensures that ball carrier bar does not take off in omni-directional wheel normal operation
Fall.
5th, in structure of the present invention, wheel position hub face is curved surface corresponding to roller, can make the equal energy of ball on every row's ball carrier bar
Contacted with roller, avoiding row's ball among only can be contacted with roller, and both sides ball is asked with what roller can not be in close contact
Topic.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram of one embodiment of the present invention.
Fig. 2 is locally to remove the three-dimensional structure diagram after several rollers in Fig. 1 embodiments.
Fig. 3 is the three-dimensional structure diagram of wheel hub in Fig. 1, Fig. 2.
Fig. 4 (a) is the structural representation of ball carrier bar in Fig. 1, Fig. 2.
Fig. 4 (b) is the structural perspective of chain block in Fig. 4 (a).
Figure number identifies：1st, wheel hub；2nd, big roller；3rd, trundle；4th, ball；5th, ball carrier bar；6th, chain block；7th, groove；8、
Pressing plate；9th, hook is sincere；10th, joint；11st, ball supporting mechanism；12nd, the hole of bead.
Embodiment
Illustrated embodiment is described further to technical scheme below in conjunction with the accompanying drawings.
Omnidirectional's wheel load capacity of the present invention improves structure, its technical scheme be set with the upper circle spacing of wheel hub 1 it is big
Corresponding to roller 2 and trundle 3 the ball supporting mechanism for being supported on corresponding idler wheel bottom, the ball are equipped with wheel position hub face
Supporting mechanism 11 includes the retainer of matching wheel position hub face shape, and ball 4, the big roller 2 are laid with the retainer
It is arranged on trundle 3 by corresponding support shaft on wheel hub on wheel hub 1, big roller 2 and the wheel position hub face corresponding to trundle 3
It is curved surface, as shown in Figure 1, Figure 2, Figure 3 shows.
By taking the ball supporting mechanism 11 corresponding to trundle 3 as an example, the retainer is matching trundle wheel position hub face
The ball carrier bar 5 of three axial directions side by side, the length direction of each ball carrier bar 5 are the circumferencial direction of wheel hub 1, each ball carrier bar 5 by
The polylith chain block 6 that is hinged successively of head and the tail is formed by connecting, and (head of chain block 6 is the hinge position of intermediate projections, in the afterbody tail of chain block 6
Between indent hinge position), the center of each chain block 6 opens up the hole of bead 12 of insertion, the aperture that the hole of bead 12 is formed in the top of chain block 6
The aperture formed less than bottom, the interior rolling matching in the hole of bead 12 of each chain block 6 have a ball 4, and the ball 4 is placed from the hole of bead 12
In it so that the top of ball 4 is exposed at the top of chain block 6, and the ball radialis part of ball 4 is stuck in the bottom of chain block 6, each ball carrier bar 5
The chain block 6 of front end is connected on the joint 10 of an adjustable length；Corresponding three ball carrier bars 5 are a plurality of in being opened up on wheel position hub face
Groove 7, the section of the groove 7 is matches the semicircle of the bottom of ball 4, as shown in Fig. 2, Fig. 4 (a), Fig. 4 (b).
Three ball carrier bars 5 that length is regulated by joint 10 are embedded in trundle wheel position hub face, three ball carrier bars 5
Both ends are pressed on the both ends of trundle wheel position hub face by the pressing plate 8 of axial direction respectively, and the both sides of each groove 7 correspond to adjacent chain block
6 hinged part is provided with the hook sincere 9 that hooking makes it be brought into close contact with wheel position hub face in chain block 6；Ball 4 on each bar ball carrier bar 5
Top is in rolling contact with the bottom of trundle 3, and the bottom of ball 4 on each bar ball carrier bar 5 rolls and is placed in trundle wheel position hub face
Corresponding to upper in groove 7, as shown in Figure 2.
Claims (5)
1. omnidirectional's wheel load capacity improves structure, it is characterised in that：In the big roller (2) set with wheel hub (1) the upper circle spacing
The ball supporting mechanism for being supported on corresponding idler wheel bottom, the ball branch are equipped with corresponding wheel position hub face with trundle (3)
Support mechanism (11) includes the retainer of matching wheel position hub face shape, and ball (4), each ball (4) are laid with the retainer
Bottom with wheel position hub face be in rolling contact, the top of each ball (4) is in rolling contact with roller.
2. omnidirectional's wheel load capacity according to claim 1 improves structure, it is characterised in that：The retainer is by axial direction
The ball carrier bar group that a plurality of ball carrier bar (5) side by side is formed, length direction for each ball carrier bar (5) of circumferencial direction include according to
The chain block (6) of secondary hinge, each chain block (6) center offer the hole of bead (12) of installation ball (4)；Corresponding to a plurality of ball carrier bar
(5) in opening up a plurality of groove (7) on wheel position hub face, the section of the groove (7) is the semicircle of matching ball (4) sphere diameter.
3. omnidirectional's wheel load capacity according to claim 2 improves structure, it is characterised in that：The ball carrier bar group length
The both ends in direction are pressed on the both ends of corresponding wheel position hub face by the pressing plate (8) of axial direction respectively, and the both sides of each groove (7) correspond to
The hinged part of adjacent chain block (6) is provided with hooking makes it sincere (9) with taking turns the hook that position hub face is brought into close contact in chain block (6).
4. omnidirectional's wheel load capacity according to claim 3 improves structure, it is characterised in that：Each bar ball carrier bar (5)
One end is provided with the joint (10) of adjustable length, and the pressing plate (8) is pressed on the joint (10) of ball carrier bar (5) corresponding end.
5. omnidirectional's wheel load capacity according to any one in Claims 1 to 4 improves structure, it is characterised in that：It is described
Take turns curved surface of the position hub face for the corresponding idler wheel bottom shape of matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037135.5A CN107745608A (en) | 2017-10-30 | 2017-10-30 | Omnidirectional's wheel load capacity improves structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711037135.5A CN107745608A (en) | 2017-10-30 | 2017-10-30 | Omnidirectional's wheel load capacity improves structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107745608A true CN107745608A (en) | 2018-03-02 |
Family
ID=61253782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711037135.5A Pending CN107745608A (en) | 2017-10-30 | 2017-10-30 | Omnidirectional's wheel load capacity improves structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107745608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450853A (en) * | 2019-08-15 | 2019-11-15 | 珠海格力智能装备有限公司 | AGV trolley |
| CN113246654A (en) * | 2021-06-16 | 2021-08-13 | 江苏邦邦智能科技有限公司 | Omnidirectional wheel and mobile device |
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| CN105751815A (en) * | 2016-04-29 | 2016-07-13 | 广东科杰达智能电器有限公司 | Omni wheel of floor sweeping robot |
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| CN2113188U (en) * | 1991-12-24 | 1992-08-19 | 李志东 | Non-axle adjustable ball castor |
| CN2137213Y (en) * | 1992-10-14 | 1993-06-30 | 谢中全 | Globular universal wheel |
| CN2176922Y (en) * | 1993-08-28 | 1994-09-14 | 江枝昌 | Universal contact-roller of suitcase |
| CN2228418Y (en) * | 1995-05-11 | 1996-06-05 | 李志东 | Axleless castor |
| CN2229366Y (en) * | 1995-09-25 | 1996-06-19 | 张品乐 | Shaftless universal ball castor |
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| CN105751815A (en) * | 2016-04-29 | 2016-07-13 | 广东科杰达智能电器有限公司 | Omni wheel of floor sweeping robot |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450853A (en) * | 2019-08-15 | 2019-11-15 | 珠海格力智能装备有限公司 | AGV trolley |
| CN113246654A (en) * | 2021-06-16 | 2021-08-13 | 江苏邦邦智能科技有限公司 | Omnidirectional wheel and mobile device |
| CN113246654B (en) * | 2021-06-16 | 2021-10-19 | 江苏邦邦智能科技有限公司 | Omnidirectional wheel and mobile device |
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