CN1259446A - High precision rotating fixed direction drive wheel shaft device and its processing method - Google Patents
High precision rotating fixed direction drive wheel shaft device and its processing method Download PDFInfo
- Publication number
- CN1259446A CN1259446A CN 98124699 CN98124699A CN1259446A CN 1259446 A CN1259446 A CN 1259446A CN 98124699 CN98124699 CN 98124699 CN 98124699 A CN98124699 A CN 98124699A CN 1259446 A CN1259446 A CN 1259446A
- Authority
- CN
- China
- Prior art keywords
- high precision
- drive wheel
- fixed direction
- axle sleeve
- direction drive
- 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
Links
Images
Abstract
The present invention relates to a high precision rotating fixed direction driving wheel axle equipment and its processing method. It is composed of central axle, inner axle sleeve, outer ring, thrust ring plate, axle end part, retaining nut etc.. The plate part of external ring is filled with rolling parts, and the inner surface of axle hole is hardening treated to make the inner wall retaining high smoothness, at the same time, the inner axle sleeve outer ring surface, inner axle sleeve axle hole surface and smooth rod section of central axle are also hardening treated,the loading part of different structural member surfaces retain very small gap to present slide friction rotation.
Description
The present invention is the fixed direction drive wheel shaft device and the job operation thereof of relevant a kind of high precision rotation, especially refer to application implementation in central rotating shaft and internal axle sleeve, and internal axle sleeve with outside the interannular high precision rotate, make it reach the part tolerance accumulation that overcomes when assembling with structural design, amount of deflection is reduced to bottom line when reaching the wheel shaft rotation, and the spy is suitable for serving as hub units such as indoor sport body-building vehicle, bicycle.
For general unilateral bearing structure, be to be filled in the wedge groove by rolling body (ball or roller), see through supporting and the restriction of the peculiar shape of wedge groove of shell fragment, the movement relation in making between ring and outer ring element and the transmission of power, form its rolling body and only accept the single direction awl wedge clamping blocking function in when rotation, further reach the effect that drives the inner and outer rings accompanying rotation, become a function with specific unidirectional rotation.
To be applied to the indoor body-building bicycle is example, need be provided with not cheap unilateral bearing of price or noisy unidirectional drive ratchet on its wheel shaft, drive the merit that chain (or belt) is made back-wheel drive to step on before reaching, user's preceding wheels pedal need stop to step at any time, and not linked trailing wheel by this and affect element (chain or belt) to draw the characteristic of commentaries on classics, is to play the part of considerable role because the element of this one-way brake is installed in wheel hub.
With commercially available fixed direction drive wheel shaft devices such as bicycle wheel hub is example, and the wheel shaft two ends of its wheel hub are filled with rotation rolling members such as bearing, with the outer interannular as fixed center shaft and rotation, keeps the smooth and easy contact surface of a rolling.But, described wheel hub does not only reach the passivity standard smoothly of rotating between moving part and moving part, rotation for the low amount of deflection of high precision, if with single commercially available bearing, error when its offset radially adds each part manufacturing of wheel hub, after a power axle device was formed in each the part installing of its accumulative total, the tilt value under the rotation was higher, can't reach the effect of the low amount of deflection rotation of a high precision.
Main purpose of the present invention provides a kind of fixed direction drive wheel shaft device and job operation thereof of high precision rotation, it possesses the function that unidirectional rotation drives, the degree of precision height, can cheap batch manufacturing and can make rotation the time very steadily, advantage such as low noise, amount of deflection is atomic when rotating simultaneously.
For reaching the foregoing invention purpose, apparatus of the present invention comprise by a center shaft, an internal axle sleeve, an outer shroud, two seals thrust ring plate, two axle head spares and a plurality ofly ends loose nut and formed, wherein:
Center shaft be provided with thread segment at least one end of axle, and axostylus axostyle is provided with the smooth shaft section;
Internal axle sleeve is provided with the groove that enlarges internal orifice dimension at least one end face, is provided with the projection snap ring in external diameter one side, in the aperture axis established greater than the center shaft external diameter;
Outer shroud is provided with the depression board at least one end, in depression board inboard unidirectional driving section is set, and is provided with draw-in groove and draw-in groove lead angle in the outer rim of depression board;
Seal the thrust ring plate, it is continuous ring plate plate body, and a plurality of conduits are set, and sets out a plurality of fixing plate bodys in the ring plate outer rim is prominent, makes the tool of ring plate own bear the distortion elastic force of compression;
Axle head spare is provided with the ring portion of expansion and in the shaft sleeve part that extends axially out, establishes mechanical transmission component on the ring footpath that enlarges;
End loose nut, its inner hole thread is same as the screw thread of center shaft, can be locked on the center shaft thread segment;
Buckle in the draw-in groove of outer shroud of unidirectional driving section sealing thrust ring plate mat draw-in groove lead angle elastic compression, internal axle sleeve places among the outer shroud with minim gap, and center shaft places internal axle sleeve and runs through the diaxon extremity piece with minim gap, and oppositely screw togather in twos on the thread segment that is positioned center shaft with each member of backstop to end loose nut, reach the fixed direction drive wheel shaft device of high precision rotation.
In the moulding caulking groove on outer shroud depression board, fill out and establish rolling body and shell fragment in the single roll caulking groove, seal thrust ring plate mat draw-in groove lead angle elasticity and be forced into the draw-in groove that is fastened in the outer shroud outer rim, prevent that the outer of each rolling body and shell fragment from dropping out, internal axle sleeve is placed among the outer shroud, its internal axle sleeve external diameter one side is provided with the snap ring of projection, its snap ring seals the thrust ring plate with what appropriate gap was kept out a side, and opposite side then utilizes ring portion that its axle head spare enlarges to keep out with appropriate gap and seals the thrust ring plate in above-mentioned opposite side; Center shaft is placed through in the axle head spare at two ends, locking in twos ends loose nut location backstop on the thread segment of center shaft, with the outside of appropriate gap fixed constraints in the diaxon extremity piece, reach and be combined into a fixed direction drive wheel shaft device, make with internal axle sleeve to link the effect that all-in-one-piece axle head spare can constitute unidirectional transmission with outer interannular.
Job operation of the present invention: be to process via integer in the contact surface of component load-bearing portion, make each assembly set contact surface supporting part have the tolerance value and the smoothness of high degree of precision, and tool minim gap between member makes simultaneously in twos and rotates with sliding friction between member in twos.
This described integer processing is by the hardness number integer instrument higher than work piece, in the endoporus of outer shroud, internal axle sleeve or in the external diameter surface place of internal axle sleeve, center shaft, force interference to penetrate the integer mode with high pressure, control each accessory size tolerance value and keep high precision.
Technical scheme of the present invention makes fixed direction drive wheel shaft reach the effect of the low amount of deflection rotation of high precision.Be particularly useful for using on the device as the unidirectional rotation of all kinds of need.
The drawing explanation of accompanying drawing:
Fig. 1 is the stereo appearance figure of the embodiment of the invention;
Fig. 2 is the structure decomposition map of the embodiment of the invention;
Fig. 3 is the axial cutaway view of the embodiment of the invention;
Fig. 4 is the cutaway view of Fig. 3 embodiment 4-4;
Fig. 5 A is the lateral plan of embodiment of the invention outer shroud;
Fig. 5 B is the cutaway view of Fig. 5 A embodiment outer shroud 5-5;
Fig. 5 C is the axial cutaway view of another embodiment of the present invention outer shroud;
Fig. 5 D is the lateral plan of Fig. 5 C embodiment outer shroud;
Fig. 5 E is the present invention's axial cutaway view of another embodiment outer shroud again;
Fig. 5 F is the lateral plan of Fig. 5 E embodiment outer shroud;
Fig. 6 A is the axial cutaway view of embodiment of the invention internal axle sleeve;
Fig. 6 B is the lateral plan of Fig. 6 A embodiment internal axle sleeve;
Fig. 6 C is the axial cutaway view of further embodiment of this invention internal axle sleeve;
Fig. 6 D is the lateral plan of Fig. 6 C embodiment internal axle sleeve;
Fig. 7 is the lateral plan that the embodiment of the invention is sealed the thrust ring plate;
Fig. 8 A is the axial cutaway view of embodiment of the invention axle head spare;
Fig. 8 B is the lateral plan of Fig. 8 A embodiment axle head spare;
Fig. 8 C is the lateral plan of another axle head spare of the embodiment of the invention;
Fig. 8 D is the axial cutaway view of another axle head spare of Fig. 8 C embodiment;
Fig. 9 is the front elevation of embodiment of the invention center shaft;
Figure 10 is the lateral plan that the embodiment of the invention is ended loose nut;
Figure 11 is the axial cutaway view that the present invention adds attached oil sealing embodiment.
Below by embodiment and conjunction with figs. structure of the present invention, method and characteristics are done a detailed elaboration:
See also shown in Fig. 1-4, the fixed direction drive wheel shaft device of a kind of high precision rotation of the present invention mainly is to be provided with a center shaft 10, an internal axle sleeve 20, a plurality of rolling body 30, a plurality of shell fragment 40, an outer shroud 50, two to seal thrust ring plate 60, axle head spare 70,70a and a plurality ofly end loose nut 80 and form.
This center shaft 10 (seeing also Fig. 9) is non-rotary support, can be a solid axostylus axostyle, is provided with the thread segment 11 of suitable length at least one end of axle, and the axostylus axostyle stage casing keeps one section smooth shaft section 12.
This internal axle sleeve 20 (seeing also Fig. 6 A, Fig. 6 B), be provided with the groove 21 that enlarges internal diameter at least one end face, be provided with the snap ring 23 of projection in internal axle sleeve 20 external diameters one side, and in the aperture axis 24 established be after case hardening is handled, implement to penetrate integer with the reaming facility, make the suitable smoothness of axis hole wall tool in it, and aperture axis 24 is slightly larger than the external diameter of center shaft 10.
This rolling body 30 can be the rolling member that ring footpaths such as ball, roller are round shape.
These a plurality of shell fragments 40 are for being convexly curved or the elastic element of ring type.
This outer shroud 50 (seeing also Fig. 5 A, Fig. 5 B) is established medium pore 56, be provided with depression board 51 in two ends, in depression board 51 inboards unidirectional driving section is set, the caulking groove that a plurality of moulding are arranged, its caulking groove is the wedge shape caulking groove 52 that rolling body only can be done single roll, outer rim in the depression board is provided with draw-in groove 53, draw-in groove lead angle 54, and the external diameter surface of outer ring body is provided with the member 55 of suitable shape face, establishes other outward elements (as cast-iron wheel) for card.
The outer ring surface of this center shaft, internal axle sleeve central authorities and external diameter surface supporting part, the inboard supporting part of outer shroud medium pore respectively is provided with oil storage portion; Be provided with the oil sealing element between outer shroud and internal axle sleeve and internal axle sleeve and center shaft; Be provided with dustproof element between outer shroud and internal axle sleeve and internal axle sleeve and center shaft; The inboard supporting part of internal axle sleeve all contacts with appropriate gap and the sliding friction rotation with internal axle sleeve outside supporting part with center shaft outside supporting part, the inboard supporting part of outer shroud.
This seals thrust ring plate 60 (seeing also Fig. 7), and it is continuous ring plate plate body, and is that a plurality of suitable hollow out conduits 61 are set, and its outer rim is prominent sets out a plurality of fixing plate bodys 62, the distortion elastic force that makes this ring slice itself possess suitably to bear compression;
This axle head spare 70 (seeing also Fig. 8 A, Fig. 8 B) is provided with the ring portion 71 of expansion and in the shaft sleeve part 72 that extends axially out, its medium pore 73 diameters are greater than smooth shaft section 12 diameters of center shaft 10.The expansion ring portion of its another axle head spare 70a (seeing also Fig. 8 C, Fig. 8 D) can be provided with the mechanical transmission component in conjunction with suitable shape body such as a last sprocket body 74 or belt wheel body, as gear, one chip sprocket wheel, multiple-piece chain wheel set, belt pulley, multiple row formula belt pulley, the time rule belt pulley or the like, its medium pore 73 diameters are also greater than the diameter of the smooth shaft section 12 of center shaft 10.
This ends loose nut 80 (seeing also Figure 10), and its endoporus 81 screw threads are same as the screw thread of center shaft, can be locked in mutually in twos on the thread segment 11 of center shaft 10.
(see also Fig. 3) during assembling, in each caulking groove on outer shroud 50 its depression boards 51, insert rolling body 30 and shell fragment 40 respectively in the wedge shape caulking groove 52 of single roll, and in the draw-in groove 53 of two outer rims, mat draw-in groove lead angle 54 is forced into one with each elastic compression and seals thrust ring plate 60, internal axle sleeve 20 is placed outer shroud 50 in the medium pore 56 of integer, and be butted on the side that seals thrust ring plate 60 with suitable slightly spacing with the snap ring 23 of a lateral process, and prop up with suitable spacing restriction slightly with the ring portion 71 that enlarges by an axle head spare 70 in other end, but the endoporus of axle head spare 70 is greater than smooth shaft section 12 external diameters of center shaft 10, contact with the smooth shaft section 12 of center shaft 10 so it is integer aperture axis 24 inwalls with internal axle sleeve 20, function is convenient to mutual rotation as bearing; The in addition end of internal axle sleeve 20 is then set up axle head spare 70a (consulting Fig. 8 A, Fig. 8 B) close packed of sprocket body 74 and is propped up to enlarge ring portion, and it establishes endoporus system the smooth shaft section 12 greater than center shaft 10 equally, and is not contacted with this smooth shaft section 12; At last its center shaft 10 is placed in the endoporus of each axle head spare 70,70a, its smooth shaft section 12 with center shaft 10 contacts with integer aperture axis 24 inwalls of internal axle sleeve 20, formation axle head spare 70,70a, internal axle sleeve 20 can be the center smooth rotation with center shaft 10, more utilize and end loose nut 80 in twos and be screwed together on center shaft 10 its thread segments 11, reach the location in the packing mode that oppositely locks mutually, restriction rotatablely moves and only betiding between the nut of two ends as backstop.
After the present invention's combination, it is in these sprocket body 74 places of axle head spare 70a, can link members such as chain and interlock in the pedal of cycling-trainer, the suitable shape face of appearance 55 places of outer shroud 50 then can (can add damping on this flywheel body in conjunction with members such as flywheel body simultaneously, braking system, do not state in addition in this), after axle head spare 70a drives with chain, because of axle head spare 70a and internal axle sleeve 20 are to combine closely, thereby priming internal axle sleeve 20 rotates, even rolling body 30 and shell fragment 40 in the while internal axle sleeve 20 unidirectional wedge shape caulking grooves 52, reach with awl wedge clamping blocking and fixingly to rotate to driving outer shroud 50,56 of the medium pores of its internal axle sleeve 20 and outer shroud 50 are provided with suitably gap slightly especially simultaneously, do not make when driving counter-rotating to rotate with sliding friction mutually.
The element of the unidirectional transmission of unidirectional rotation portion tool, modular assembly or be equal to the structure of effect can be commercially available unilateral bearing; Its tool single roll wedge shape caulking groove and insert rolling body and shell fragment also can be had an one-way driving mechanism of ratchet and corresponding ratchet.
Because during the flywheel rotation, be difficult to splendid kinetic balance (productive costs factor), so the special suitably gap slightly that is provided with of 50 of internal axle sleeve 20 and outer shrouds promptly determines whether good and bad place of flywheel rotation quality, promptly when the gap little rotation beat of healing littler, the rotation quality is better.
Tradition processing go up for spare part slightly the dimensional control in gap be difficult for accurate, even for trying to achieve the means that minimum tolerance adopts mechanical lapping to process, yet with elongated members such as the center shaft in this case, internal axle sleeve and outer shrouds, it grinds the accurate tolerance of control with high costs and difficult.If between two tumblers, add commercially available bearing, as its accumulation of internal axle sleeve two ends in respect of the amount of tolerance of 2 compositions of commercially available bearing, insert commercially available bearing and more make and rotate tolerance and accumulate continuously when the outer shroud two ends refill, not only cause rotational variations bigger, its cost increase goes out four commercially available bearing expenses.
Because lapped finish or also inapplicable on this series products manufacturing process in the hope of the mode of precise measure in adding commercially available bearing between two tumblers, the present invention adopts suitable integer processing, by the integer instrument that adopts suitable cure process to cross, in outer shroud, the interior mesopore of internal axle sleeve, with internal axle sleeve, the external diameter surface of center shaft, all bestow and penetrate integer and (modes such as the crowded and high-pressure rotary of high pressure are arranged by the integer instrument higher than its hardness number, certainly in the process of penetrating, all be filled with cooling, lubricated, lapping solution), reach the tolerance value that finished surface has high degree of precision, and the integer effect of the suitable smooth surface of supporting part tool between each assembly contact surface.
In the Another Application example, see also shown in Fig. 5 C, the 5D.Outer shroud 50 structures shown in above-mentioned Fig. 5 A, Fig. 5 B, its depression board 51 is provided with the caulking groove of a plurality of moulding, embed with cooperation rolling body 30 and shell fragment 40 and roll, but its depression board 51 also can not established caulking groove, and the commercially available unilateral bearing body 57 of directly packing into substitutes enforcement.
See also again shown in Fig. 5 E, the 5F, more outer shroud 50 can be provided with oil resevoir 58 in the interior axis hole wall of the suitable smoothness of tool among another embodiment of this case, keep a better rotate effect between outer shroud and internal axle sleeve external diameter surface to provide.
See also again shown in Fig. 6 C, the 6D, equally also internal axle sleeve 20a in its aperture axis 24 inwalls after case hardening processing and integer, can be provided with oil resevoir 25 among another embodiment of this case.
See also Figure 11 (please comparing), can install oil seal groove 90 in outer shroud 50, internal axle sleeve 20,20a appropriate location in another embodiment of the present invention, and insert oil sealing 90a, 90b with the stagnant storage of more effective sealing lubricating oil with Fig. 3.
In sum, the present invention designs tumbler and is not to contact with appropriate gap between moving part, make it keep effective control gap tolerance of sliding friction, distinguish properly application implementation in center shaft and internal axle sleeve, or between the contact surface of internal axle sleeve and outer shroud, precision is grasped in processing and manufacturing easily in manufacturing process, provide really one use extensively, tool unidirectional drive transmission spinfunction and the high driving device of precision, be particularly suited for using on the device as the unidirectional rotation of all kinds of need.
Claims (17)
1, the fixed direction drive wheel shaft device of a kind of high precision rotation, its feature comprise by a center shaft, an internal axle sleeve, an outer shroud, two and seal thrust ring plate, two axle head spares and a plurality ofly end loose nut and formed, wherein:
Center shaft be provided with thread segment at least one end of axle, and axostylus axostyle is provided with the smooth shaft section;
Internal axle sleeve is provided with the groove that enlarges internal orifice dimension at least one end face, is provided with the projection snap ring in external diameter one side, in the aperture axis established greater than the center shaft external diameter;
Outer shroud is provided with the depression board at least one end, in depression board inboard unidirectional driving section is set, and is provided with draw-in groove and draw-in groove lead angle in the outer rim of depression board;
Seal the thrust ring plate, it is continuous ring plate plate body, and a plurality of conduits are set, and sets out a plurality of fixing plate bodys in the ring plate outer rim is prominent, makes the tool of ring plate own bear the distortion elastic force of compression;
Axle head spare is provided with the ring portion of expansion and in the shaft sleeve part that extends axially out, establishes mechanical transmission component on the ring footpath that enlarges;
End loose nut, its inner hole thread is same as the screw thread of center shaft, can be locked on the center shaft thread segment;
Buckle in the draw-in groove of outer shroud of unidirectional driving section sealing thrust ring plate mat draw-in groove lead angle elastic compression, internal axle sleeve places among the outer shroud with minim gap, and center shaft places internal axle sleeve and runs through the diaxon extremity piece with minim gap, and oppositely screw togather in twos on the thread segment that is positioned center shaft with each member of backstop to end loose nut, reach the fixed direction drive wheel shaft device of high precision rotation.
2, a kind of job operation of fixed direction drive wheel shaft device of high precision rotation, it is characterized in that processing via integer in the contact surface of component load-bearing portion, make each assembly set contact surface supporting part have the tolerance value and the smoothness of high degree of precision, and tool minim gap between member makes simultaneously in twos and rotates with sliding friction between member in twos.
3, the job operation of the fixed direction drive wheel shaft device of a kind of high precision rotation as claimed in claim 2, it is characterized in that: this described integer processing is by the hardness number integer instrument higher than workpiece to be machined, in the endoporus of outer shroud, internal axle sleeve or in the external diameter surface place of internal axle sleeve, center shaft, force interference to penetrate the integer mode with high pressure, control each accessory size tolerance value and keep high precision.
4, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: inboard supporting part of its outer shroud and internal axle sleeve outside supporting part are with minim gap contact and sliding friction rotation.
5, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: inboard supporting part of its internal axle sleeve and center shaft outside supporting part are with minim gap contact and sliding friction rotation.
6, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: this outer shroud is provided with member in external diameter surface and establishes outward element for card.
7, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1, it is characterized in that: the inboard supporting part of this outer shroud medium pore is provided with oil storage portion.
8, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: the oil sealing element is set between its outer shroud and internal axle sleeve and internal axle sleeve and center shaft.
9, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: between its outer shroud and internal axle sleeve and internal axle sleeve and center shaft dustproof element is set.
10, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: this axle head spare enlarge mechanical transmission component on the ring footpath be gear, one chip sprocket wheel, multiple-piece chain wheel set, belt pulley, multiple row formula belt pulley, the time rule belt pulleys.
11, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1, it is characterized in that: these internal axle sleeve central authorities and external diameter surface supporting part are provided with oil storage portion.
12, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: the outer ring surface of this center shaft is provided with oil storage portion.
13, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: element, the modular assembly of the unidirectional transmission of this unidirectional driving section tool or be equal to the structure of effect.
14, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: this unidirectional driving section tool single roll wedge shape caulking groove and insert rolling body and shell fragment.
15, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1, it is characterized in that: this unidirectional driving section is commercially available unilateral bearing.
16, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1, it is characterized in that: this unidirectional driving section is the one-way driving mechanism of tool ratchet and corresponding ratchet.
17, the device of the fixed direction drive wheel shaft of a kind of high precision rotation as claimed in claim 1 is characterized in that: high hardness, the smoothness of sliding friction surface tool of described each supporting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98124699 CN1259446A (en) | 1998-11-06 | 1998-11-06 | High precision rotating fixed direction drive wheel shaft device and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98124699 CN1259446A (en) | 1998-11-06 | 1998-11-06 | High precision rotating fixed direction drive wheel shaft device and its processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1259446A true CN1259446A (en) | 2000-07-12 |
Family
ID=5228763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98124699 Pending CN1259446A (en) | 1998-11-06 | 1998-11-06 | High precision rotating fixed direction drive wheel shaft device and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1259446A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568726A (en) * | 2012-07-19 | 2014-02-12 | 張家斌 | Wheel hub structure |
| CN103587814A (en) * | 2013-11-27 | 2014-02-19 | 汤坤 | Cylindrical clamping barrel |
-
1998
- 1998-11-06 CN CN 98124699 patent/CN1259446A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568726A (en) * | 2012-07-19 | 2014-02-12 | 張家斌 | Wheel hub structure |
| CN103587814A (en) * | 2013-11-27 | 2014-02-19 | 汤坤 | Cylindrical clamping barrel |
| CN103587814B (en) * | 2013-11-27 | 2015-07-29 | 朱德仲 | A kind of drum type brake card cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1427930A (en) | Screw actuator | |
| CN1236215C (en) | Planetary gear device | |
| CN1050885C (en) | Gear system | |
| CN1205421C (en) | Roller bearing and roller chain mounted with roller bearing | |
| CN1309965C (en) | Bearing module of bicycle | |
| CN1191436C (en) | Compact actuator | |
| CN1209864C (en) | Electric actuator | |
| CN1957188A (en) | Taper lock bearing assembly | |
| CN101059163A (en) | Wobbling inner gearing planetary gear system | |
| CN200963695Y (en) | Automatic light and fast clamp | |
| CN1620559A (en) | Rotation support device for compressor pulley | |
| CN1199014C (en) | Outer gear manufacture method | |
| CN1650091A (en) | Device for fixing a rotor on a shaft | |
| CN107327543B (en) | Cycloid steel ball planetary transmission mechanism and robot joint speed reducer thereof | |
| CN1033875C (en) | Manufacture of bearing arrangment | |
| CN1025234C (en) | Improved bearing assemblies | |
| US20010046427A1 (en) | Reinforced lead screw with springless anti-backlash nut | |
| CN1769730A (en) | Support structure for rotation body | |
| CN1157274C (en) | Method of manufacturing pin holding ring for internal gear, internally meshed planetary gear structure, and hydraulic motor and pump | |
| CN1435345A (en) | Roller component structure for building machinery | |
| CN1259446A (en) | High precision rotating fixed direction drive wheel shaft device and its processing method | |
| CN1542311A (en) | Resin gear and rotational power transmission member of resin | |
| CN101074726A (en) | Propelling cam for gear transmission device | |
| CN1128645C (en) | High-performance top | |
| CN2833219Y (en) | Oil carrying structure of bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |