CN202641254U - Inflatable ball wheel type universal wheel without shaft - Google Patents
Inflatable ball wheel type universal wheel without shaft Download PDFInfo
- Publication number
- CN202641254U CN202641254U CN 201220347287 CN201220347287U CN202641254U CN 202641254 U CN202641254 U CN 202641254U CN 201220347287 CN201220347287 CN 201220347287 CN 201220347287 U CN201220347287 U CN 201220347287U CN 202641254 U CN202641254 U CN 202641254U
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- ball
- wheel
- shaftless
- ball wheel
- inflatable
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- Expired - Fee Related
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Abstract
An inflatable ball wheel type universal wheel without a shaft comprises a ball wheel and a ball wheel seat, wherein the ball wheel is an inflatable ball wheel, and the ball wheel seat is assembled by two half shell bodies with identical shapes in a left-right symmetrical mode through a screw nut assembly. Ball grooves which are provided with an upper ring, a middle ring and a lower ring and used for mounting balls are arranged in the ball wheel seat, and the upper ring, the middle ring and the lower ring are all horizontally arranged, and each ball groove is formed by an upper part arc and a lower part arc, wherein the upper part arc is in tangent with the lower part arc, the radius of the upper part arc is equal to that of the balls, the radius of the lower part arc is equal to that of the balls, and the centre of a circle of the lower part arc is located on an upper edge opening of each ball groove; on the condition that an opening of the ball wheel seat is upward, the centers of gravity lines of the balls are all located within the upper edge opening. The inflatable ball wheel type universal wheel without the shaft not only has the advantages of cleaning dirt in the ball wheel seat conveniently, but also is low in usage of parts with different shapes, and relatively low in manufacturing and usage costs; and in addition, the inflatable ball wheel type universal wheel without the shaft can be further assembled into a driving wheel to use.
Description
Technical field
The utility model relates to shaftless cardan wheel.
Background technology
For simplifying steering hardware, at various hand barrows, in the light electric vehicle (electronic fun vehicle, electric cycle, electric wheel-chair vehicle), its flower wheel all adopts cardan wheel.Because there is short deficiency in service life in the cardan wheel of traditional plate-like wheel construction that rotating shaft must be arranged, so, people have just invented a kind of cardan wheel of the spherical wheel construction that does not need rotating shaft of long service life---and practise title " shaftless cardan wheel ", its roller is practised and is claimed " ball wheel "; The support of fulcrum ball wheel, namely the ball wheel seat has encased the major part of ball wheel with being package status, only has fraction ball wheel to expose to contact with ground from the opening part of ball wheel seat bottom.Yet, the latter except turn to flexible aspect not as the former, the latter also is not suitable for walking on dirtier, sliding ground.When walk in dirtier ground, the foul that is bonded on the ball wheel surface is easy to be with within the goal wheel seat, and so, the reliability on turning efficiency is just poorer, is embodied in that its ball wheel cannot roll at all on certain several direction.Existing most of shaftless cardan wheel all cannot go to clear up with the foul in the goal wheel seat, and the notification number innovation and creation that to be CN2794888Y, name be called " improved structure of castor " in fact overcoming this deficiency (annotate: this patent in its specification sheets and not mentioned).The ball wheel seat of these innovation and creation by (superposed) hub and and (being positioned at the bottom) wheel cap two parts assemble by screw, after brought foul in the ball wheel seat, can pull down the wheel cap and clear up.Just, but these innovation and creation exist difform part more, i.e. the higher deficiency of manufacturing cost.In addition, in the prior art, also have by friction wheel to drive the ball wheel, and then shaftless cardan wheel is used as driving wheel, they exist difform part more too, i.e. the higher deficiency of manufacturing cost.
Summary of the invention
The purpose of this utility model is to provide a kind of difform part less, the shaftless cardan wheel that the inflatable ball that manufacturing cost is lower is wheeled.
The technical scheme that realizes described purpose is the wheeled shaftless cardan wheel of a kind of like this inflatable ball, aspect same as the prior art is, this shaftless cardan wheel comprises ball wheel and is the ball wheel seat that the parcel shape is supporting the ball wheel, having the wheel that concedes points to expose opening with kiss the earth in the bottom of ball wheel seat.Its improvements are, described ball wheel is taken turns for inflatable ball, and described ball wheel seat is assembled by the screw nut assembly left and right symmetrically by two identical half housings of shape; Have upper, middle and lower three circles to be horizontally disposed ball grooves in this ball wheel seat, in this three circles ball grooves the ball that several shore the ball wheel is installed all, the centre of sphere of a middle circle ball is positioned at by ball takes turns on the horizontal surface of the centre of sphere; All ball grooves are made of the tangent circular arc of two parts up and down, and the radius of upper partial arc equals the radius of ball, and the radius of lower partial arc equals the diameter of ball, and the center of circle of this time partial arc is at bead place, the top of ball grooves; Under the state of the opening upwards of ball wheel seat, the center of gravity line of described ball is all on top within the bead; The top of two halves housing all is useful on the mounting screw hole that is connected with vehicle frame.
From scheme, can find out, must part except ball wheel and ball etc. because the shape of two halves housing is identical and be left and right symmetrically (special version, here said " left-right symmetric " is just in order to distinguish with " up and down symmetry "; Observe in different angles, also can be described as " front and back are symmetrical ") assemble by screw nut assembly, so ball wheel seat of the present utility model only need be processed a kind of half housing of shape.If leave half housing that Mould Machining becomes engineering plastics, not only saved die cost, and the precision after the assembling of two halves housing is also quite high.Again since all ball grooves consisted of by the tangent circular arc of two parts up and down, the radius of upper partial arc equals the radius of ball, the radius of lower partial arc equals the diameter of ball, and the center of circle of this time partial arc is at bead place, the top of ball grooves, and, under the state of the opening upwards of ball wheel seat, the center of gravity line of all balls is all on top within the bead, so, when installation maybe needs to clear up the foul of ball wheel seat, only needing the ball wheel seat turned over allows its opening upwards, in cleaning out the ball wheel seat and behind the foul in the ball grooves, and then all balls is put in the ball grooves; After this, the ball wheel of not yet inflation or the taking-up of having exitted is before packed into from the opening part of ball wheel seat, afterwards again to the inflation of ball wheel.
From the above analysis as can be known, it is less that the utility model has difform part really, the advantage that manufacturing cost is lower.And, be that the improved structure of castor of CN2794888Y is compared with notification number, the foul that the utility model not only also can easy cleaning ball wheel seat has also retained difform part simultaneously less, the advantage that manufacturing cost is lower.Obviously, after the ball wheel is worn, only need changes a same inflatable ball wheel and get final product, also save use cost for the user.
In addition, further process (will partly describe in detail in the specific embodiment) behind the preformed hole, the utility model has advantages of that also the driving wheel of can be used as uses.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
The structural representation that Fig. 1---the present invention observes at one and half housings under as the driving wheel condition of service;
Fig. 2---the partial enlarged drawing in I zone among Fig. 1 (upset is the state of opening upwards);
The structural representation that Fig. 3---the present invention observes at one and half housings under as the flower wheel condition of service;
Fig. 4---the partial enlarged drawing in II zone among Fig. 1;
Fig. 5---the present invention has assembled the structural representation of ball wheel seat under as the driving wheel condition of service;
Fig. 6---the present invention has assembled the structural representation of ball wheel seat under as the flower wheel condition of service;
The structural representation that Fig. 7---the utility model is used at electronic fun vehicle;
The left view of Fig. 8---Fig. 7.
The specific embodiment
Embodiment 1:
The shaftless cardan wheel (with reference to figure 1,2,3) that a kind of inflatable ball is wheeled, this shaftless cardan wheel comprise ball wheel and be the ball wheel seat that the parcel shape is supporting the ball wheel, having the wheel that concedes points to expose opening with kiss the earth in the bottom of ball wheel seat.In the utility model, described ball wheel 1 is the inflatable ball wheel, and described ball wheel seat is assembled by screw nut assembly 21 left and right symmetricallies by two identical half housings 2 of shape; Have upper, middle and lower three circles to be horizontally disposed ball grooves 23 in this ball wheel seat, in this three circles ball grooves the ball 3 that several shore ball wheel 1 is installed all, the centre of sphere of a middle circle ball is positioned at by ball takes turns on the horizontal surface of 1 centre of sphere; All ball grooves are made of the tangent circular arc of two parts up and down and (it will be apparent to those skilled in that, here said " circular arc " refers to observe being seen shape at the cross-sectional plane of ball grooves), the radius of upper partial arc equals the radius r of ball 3, the radius of lower partial arc equals the diameter d of ball 3, and the center of circle of this time partial arc is at the top of ball grooves bead by place; Under the state of the opening upwards of ball wheel seat, the center of gravity line zx of described ball 3 is all on top within the bead by; The top of two halves housing 2 all is useful on the mounting screw hole that is connected with vehicle frame.
Disclose so far, those skilled in the art is in conjunction with the understanding to the utility model beneficial effect, only can design and manufacture the wheeled shaftless cardan wheel of the inflatable ball used as flower wheel fully.Obviously, to 1 venting of ball wheel or inflation the time, should allow its tire tube valve 11 be exposed at outside the opening of ball wheel seat (with reference to figure 1,2,4).During actual processing half housing 2, guarantee that its ball grooves 23 is the circular of standard after two and half housings 2 altogether, its cost is very high.Therefore, can take off deviation, suitable pad 22 gets final product (with reference to figure 5,6) on pad between two and half housings 2 when assembling.Certainly, also can after having merged two and half housings 2, carry out secondary processing, finishing to the ball grooves 23 in it where necessary.
It will be apparent to those skilled in that, half housing 2 and ball 3 in the utility model all can adopt engineering plastics.
Indubitable, inflatable ball in the utility model wheel 1, its shell should be as basketballs, have can overinflation under the elevated pressures yet.Therefore, manufacture and design inflatable ball in essence and took turns 1 o'clock, can with reference to the manufacture of basketball, in the ball hub, add the mesh grid that prevents overinflation.
The below will change the utility model into concrete disclosure of structure work that driving wheel uses.
Embodiment 2:
On the basis of embodiment 1 (with reference to figure 1,5), be arranged in the part that ball takes turns on 1 top at two halves housing 2 and be reserved with two relative stepped holes 25, in the situation that this shaftless cardan wheel uses as driving wheel, in the hole that after described stepped hole 25 docking, forms the rotating shaft 5 that an end is connected with motor 6 axles is installed, wrap tightly in the periphery of this rotating shaft 5 and to be pressed in ball to take turns the friction tube 51(at 1 top common, can adopt plastic pipe or India rubber tube with higher coefficient of friction).
Among Fig. 5, the axle of motor 6 is connected with rotating shaft 5, has adopted the axle sleeve 61 of rigidity.The end that this axle sleeve 61 is connected with motor shaft fixes by a pin 611, adopts spline joint between this axle sleeve 61 and the rotating shaft 5.Be flexibility and reliability, at the axle journal place of rotating shaft 5 antifriction-bearing box be installed.
More reliable when using as flower wheel for guaranteeing the utility model, can also be further improved embodiment 1.
Embodiment 3:
On the basis of embodiment 1 (with reference to figure 3,6, ignore the stepped hole 25 among the figure), be positioned at the part place that ball takes turns on 1 top at two halves housing 2 and be reserved with two relative incomplete hemisphere faces 24, in the situation that this shaftless cardan wheel uses as flower wheel, a top is installed within the two halves sphere 24 after the merging is pressed in the upper top ball 4 that ball is taken turns 1 top.
Further saying, in the situation that be material with engineering plastics, is to reduce die manufacturing cost.Can also be further improved in embodiment 2.
Embodiment 4:
On the basis of embodiment 2 (with reference to figure 3,6), be positioned at the part place that ball takes turns on 1 top at two halves housing 2 and be reserved with two relative incomplete hemisphere faces 24, in the situation that this shaftless cardan wheel uses as flower wheel, a top is installed within the two halves sphere 24 after the merging is pressed in the upper top ball 4 that ball is taken turns 1 top; The vertex of this hemisphere face 24 is higher than stepped hole 25 vertexs, and the numerical value h that exceeds equals the 2/5(of ball 4 radiuses in top on this at least with reference to figure 1).
After above-mentioned improvement, when needs use the utility model as driving wheel, as embodiment 2, install rotating shaft 5, motor 6 and relevant spare and accessory parts and get final product; When needs are only done the flower wheel use with the utility model, as embodiment 3, only install top ball 4 and get final product.Owing to the stepped hole 25 namely reserved of the present embodiment 4, reserving hemisphere face 24 again, therefore, the hemisphere face 24 of reservation just can not be little, and the vertex that is embodied in hemisphere face 24 must be higher than stepped hole 25 vertexs.In the permission situation (for example material is more abundant), its numerical value that exceeds can equal top ball 4 radiuses---and excessive do not have a practical significance.
What need special version is, when not considering that the utility model is assembled into driving wheel, and does not use in the situation of top ball 4, and the ball grooves processing that preferably will go up a circle is most setting high than accompanying drawing meta on the position of some; The ball grooves of a circle moves on also can be suitably in case of necessity.
Fig. 7,8 accompanying drawings that are applied in the application example in the electronic fun vehicle of the present utility model.
In this electronic fun vehicle, the utility model cardan wheel that is assembled into driving wheel is installed in the front portion under the electronic fun vehicle vehicle frame, and the utility model cardan wheel that is assembled into flower wheel is installed in the rear portion under the electronic fun vehicle vehicle frame.Turning operates by the speed discrepancy of two motors that drive respectively two driving wheels and realizes---because the electrical structure of this type of battery-driven car, operation control etc. is that those skilled in the art knows already, therefore do not describe in detail.
Claims (4)
1. shaftless cardan wheel that inflatable ball is wheeled, this shaftless cardan wheel comprises the ball wheel and is the ball wheel seat that the parcel shape is supporting the ball wheel, there is the wheel that concedes points expose opening with kiss the earth in the bottom of ball wheel seat, it is characterized in that, described ball wheel (1) is the inflatable ball wheel, and described ball wheel seat is assembled by screw nut assembly (21) left and right symmetrically by two identical half housings of shape (2); In this ball wheel seat, there are upper, middle and lower three circles to be horizontally disposed ball grooves (23), in this three circles ball grooves several are installed all and shore the ball (3) that ball wheel (1) is stated in the residence, the centre of sphere of a middle circle ball is positioned at by ball takes turns on the horizontal surface of (1) centre of sphere; All ball grooves are made of the tangent circular arc of two parts up and down, the radius of upper partial arc equals the radius (r) of ball (3), the radius of lower partial arc equals the diameter (d) of ball (3), and the center of circle of this time partial arc is located in the top of ball grooves bead (by); Under the state of the described opening upwards of ball wheel seat, the center of gravity line (zx) of described ball (3) is all within described top bead (by); The top of two halves housing (2) all is useful on the mounting screw hole that is connected with vehicle frame.
2. the wheeled shaftless cardan wheel of described inflatable ball according to claim 1, it is characterized in that, the part that is arranged on described ball wheel (1) top at described two halves housing (2) is reserved with two relative stepped holes (25), in the situation that this shaftless cardan wheel uses as driving wheel, in the hole that after described stepped hole (25) docking, forms the rotating shaft (5) that an end is connected with motor (6) axle is installed, wraps tightly in the periphery of this rotating shaft (5) and be pressed in the friction tube (51) that described ball is taken turns (1) top.
3. the wheeled shaftless cardan wheel of described inflatable ball according to claim 1, it is characterized in that, the part place that is positioned on described ball wheel (1) top at described two halves housing (2) is reserved with relative two incomplete hemisphere faces (24), in the situation that this shaftless cardan wheel uses as flower wheel, the upper top ball (4) that a top is pressed in described ball wheel (1) top is installed within the two halves sphere (24) after the merging.
4. the wheeled shaftless cardan wheel of described inflatable ball according to claim 2, it is characterized in that, the part place that is positioned on described ball wheel (1) top at described two halves housing (2) is reserved with relative two incomplete hemisphere faces (24), in the situation that this shaftless cardan wheel uses as flower wheel, the upper top ball (4) that a top is pressed in described ball wheel (1) top is installed within the two halves sphere (24) after the merging; The vertex of this hemisphere face (24) is higher than described stepped hole (25) vertex, and the numerical value that exceeds (h) equals 2/5 of top ball (4) radius on this at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347287 CN202641254U (en) | 2012-07-18 | 2012-07-18 | Inflatable ball wheel type universal wheel without shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220347287 CN202641254U (en) | 2012-07-18 | 2012-07-18 | Inflatable ball wheel type universal wheel without shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202641254U true CN202641254U (en) | 2013-01-02 |
Family
ID=47410411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220347287 Expired - Fee Related CN202641254U (en) | 2012-07-18 | 2012-07-18 | Inflatable ball wheel type universal wheel without shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202641254U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156461A (en) * | 2015-10-14 | 2015-12-16 | 东莞市振华新能源科技有限公司 | Float-type rated load ball transfer unit device |
| GR20160100254A (en) * | 2016-05-20 | 2018-02-05 | Αντωνιος Βασιλειου Αγραφιωτης | Non-axial sphere-equipped rolling wheels |
| CN107745608A (en) * | 2017-10-30 | 2018-03-02 | 桂林电子科技大学 | Omnidirectional's wheel load capacity improves structure |
| CN107893811A (en) * | 2017-12-18 | 2018-04-10 | 无锡优耐特能源科技有限公司 | A kind of Novel universal ball |
| CN108674091A (en) * | 2018-06-26 | 2018-10-19 | 王岚晖 | A kind of multi-directional ball carrying roller |
| CN109882501A (en) * | 2019-04-17 | 2019-06-14 | 徐石交 | A kind of amorphous horizontal axle bearing |
-
2012
- 2012-07-18 CN CN 201220347287 patent/CN202641254U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156461A (en) * | 2015-10-14 | 2015-12-16 | 东莞市振华新能源科技有限公司 | Float-type rated load ball transfer unit device |
| GR20160100254A (en) * | 2016-05-20 | 2018-02-05 | Αντωνιος Βασιλειου Αγραφιωτης | Non-axial sphere-equipped rolling wheels |
| CN107745608A (en) * | 2017-10-30 | 2018-03-02 | 桂林电子科技大学 | Omnidirectional's wheel load capacity improves structure |
| CN107893811A (en) * | 2017-12-18 | 2018-04-10 | 无锡优耐特能源科技有限公司 | A kind of Novel universal ball |
| CN108674091A (en) * | 2018-06-26 | 2018-10-19 | 王岚晖 | A kind of multi-directional ball carrying roller |
| CN109882501A (en) * | 2019-04-17 | 2019-06-14 | 徐石交 | A kind of amorphous horizontal axle bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20170718 |