CN1427189A - Protective cover for jointing - Google Patents
Protective cover for jointing Download PDFInfo
- Publication number
- CN1427189A CN1427189A CN02157047A CN02157047A CN1427189A CN 1427189 A CN1427189 A CN 1427189A CN 02157047 A CN02157047 A CN 02157047A CN 02157047 A CN02157047 A CN 02157047A CN 1427189 A CN1427189 A CN 1427189A
- Authority
- CN
- China
- Prior art keywords
- safety cover
- link
- rake
- radius
- connecting part
- 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.)
- Granted
Links
Images
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
- F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
- F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
- F16D3/223—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
- Sealing Devices (AREA)
- Agricultural Machines (AREA)
Abstract
A protective cover for a connecting piece comprises a major diameter end having a combining portion of the connecting piece, a minor diameter end having a combining portion of a shaft, and a plurality of peaks and valleys formed between the major diameter end and the minor diameter end, characterized that: an inner rake portion protruding upwards is formed towards one side of the combining portion of the connecting piece by face with a radius (R0) in a whole and an outer rake portion is formed towards one side of the shaft combining portion by face protruding downwards having a radius (R1) on one end, based on the peak close to the shaft combining portion as a center. Accordingly, the protective cover for a connecting piece has improved durability while in expansion or bending motion.
Description
Technical field
The present invention relates to a kind of link safety cover; relate to a kind of improvement specifically in order to reduce the shortcoming that own wt and the inner low in the past peak number safety cover of filling grease and developing are unfavorable for high bend angle motion; and improvement minimizes adjacent to feasible being reached by the damage of shrinking and turgor movement causes of the inside/outside side rake radius ratio at last peak of axle bound fraction; and prolong working life of goods thus; and make the safety cover total length before and after installing have a special ratios, the link safety cover of the durability when carrying out turgor movement or bending motion with raising.
Background technique
Common link safety cover is that to encase link part impaired to prevent this link, and portion fills grease and makes the link parts of work flexibly within it.
As this link safety cover, main employing was the safety cover with peak table structure in the past.But, in order to reduce own wt and to reduce the amount that is filled in its inner grease simultaneously, for example developed low peak number safety cover in recent years with 5 peaks or 4 peak structures.If safety cover has such ebb table structure, then have the loading that can not only reduce himself weight and grease, and can reduce the quantity of material required when making safety cover and the advantage of safety cover overall volume.
Yet, though the safety cover of this ebb table structure has the advantage of weight reduction and minimizing quantity of material and grease-filled amount, but compare with the safety cover of high peak number, the action of shrinking and expand can't be finished neatly, thereby its durability can be influenced.In addition, because expansion and contraction are smooth inadequately, therefore also be unfavorable for very much the high bend angle action of link.
Summary of the invention
In order to solve the problems referred to above that exist in the conventional art; the object of the present invention is to provide a kind of link safety cover; wherein improve in order to reduce own wt and the inner low in the past peak number safety cover of filling grease and developing relative shortcoming that is inferior to high peak number safety cover in high bend angle motion; and will set for adjacent to the inside/outside side rake radius ratio at last peak of axle bound fraction and make and shrink and operation that turgor movement causes reaches minimized value; and prolong goods working life thus; and make the safety cover total length before and after installing have a special ratios, the durability when carrying out turgor movement or bending motion with raising.
In order to achieve the above object; the invention provides a kind of link safety cover; form with the state of both ends open wherein that an end diameter is big, the other end diameter is little; and has the gauffer that forms by a plurality of peaks in the intermediate portion; it is characterized in that: with the peak adjacent to described axle connecting part in described a plurality of peaks is the center; one side possesses the inboard rake that projects upwards in the described link of sensing connecting part; and one side possesses outside rake in the described axle of sensing connecting part, and the described inboard rake that projects upwards has radius R by integral body
0Face form, and described outside rake has radius R by the one end
1Outstanding downwards face form.
That is, technological thought of the present invention is: is R by radius with link respectively with the inboard rake at last peak of safety cover and the terminal of outside rake
0Face that projects upwards and radius R
1Outstanding downwards face constitute the stress that even dispersion is produced when last peak and other peak together carry out flexure operation thus.
In specific embodiment, disclose among the present invention by the concrete radius ratio (R that limits
1/ R
0) or the length-wise axis of concrete regulation outside rake and safety cover between tilt angle and radius ratio (R
1/ R
0) between correlation or limit the example that safety cover total length before and after the assembling improves its durability.
Description of drawings
Fig. 1 is the partial cross section figure of expression link of the present invention with the installment state of safety cover.
Fig. 2 is the sectional view of expression link of the present invention with the structure of safety cover.
Embodiment
Embodiments of the invention are described with reference to the accompanying drawings.
The with good grounds link safety cover of the present invention of diagram among Fig. 1 and Fig. 2.
Link of the present invention has the less relatively low peak number folded structure of peak number order with safety cover 100, and is for example shown in Figure 2, has 5 peak numbers.The two ends of this safety cover 100 are in open state, and form an end diameter greater than the other end, and the position has by 5 peaks and 4 gauffers that paddy forms therebetween.
The part that described diameter is big is link connecting part 130, as shown in Figure 1, be combined in the connection part of link 10, and the less part of the other end diameter is a connecting part 140, is incorporated into around the axle.
In addition, the outer periphery of described link connecting part 130 is formed with binding groove 110, by hold-down ring etc. connecting part 130 is fixed on the link 10, and also be formed with binding groove 120 in the outer periphery of described axle connecting part 140, by hold-down ring etc. connecting part 140 is fixed on the axle of link 10.
Promptly; as shown in Figure 2; link is that the inboard rake that the 130 1 sides formation of described link connecting part projects upwards is being pointed at the center with safety cover 100 with the peak adjacent to axle connecting part 140; and pointing to the 140 1 sides formation outside, described axle connecting part rake, the inboard rake integral body that projects upwards is R by radius
0Face constitute, outside rake terminal is R by radius
1Outstanding downwards face constitute.
In comparatively ideal embodiment, adjacent to the outside rake radius (R at last peak of axle connecting part 140
O) terminal radius (R of value relative inner rake
I) be about 38% to 71%.At this moment, when the tilt angle (A) that is made of with the axis of safety cover 100 outside rake and link is 55～85o, radius ratio (R
O/ R
I) value is about 41 to 60%, if this tilt angle (A) is greater than 85o, radius ratio (R then
O/ R
I) value is 38 to 45%.In addition, when outside rake is connected by continuous smoothed curve with inboard rake and does not form tilt angle (A), radius ratio (R
O/ R
I) value is 50 to 71%.
As mentioned above, make inside/outside side rake have radius ratio (R adjacent to last peak of axle connecting part 140
O/ R
I) value, be the stress that is produced when evenly disperseing last peak adjacent to described connecting part 140 to carry out bending motion, thereby improve the durability of safety cover 100 with other peak.
In addition, because the squeeze operation in when assembling, the total length L ' that is assembled into the safety cover 100 of state as shown in Figure 1 is shorter than the total length L of safety cover 100 before as shown in Figure 2 the assembling, this moment L '/L desirable about 72 to 92%.
This be for reduce safety cover with the state of contraction or expansion accepted move by link the time angle that takes place change tensile stress and the shearing stress that causes, to improve the durability of safety cover 100.
In comparatively ideal embodiment, link safety cover of the present invention is to be made of resin or rubber material.
In the above-described embodiment, the link safety cover as the low peak number with 5 peaks being described, is R but possess radius
0Face that projects upwards and radius be R
1Outstanding downwards face, also be applicable to the link safety cover of high peak number with the technology of the present invention thought of even dispersive stress.
As mentioned above; link of the present invention is with forming the gauffer that hangs down peak number for the amount that reduces own wt and the grease of being filled in the safety cover; and the inside/outside side rake radius ratio at last peak is improved as to make to be reached by the damage of shrinking and turgor movement causes minimizes, be particularly conducive to the shortcoming that overcomes the durability deficiency that the safety cover of ebb table structure in the past holds.In addition, can reduce by the angle of link and change and result from tensile stress and shearing stress on the safety cover, can improve the durability of safety cover equally, thereby in high bend angle motion, also can use safety cover neatly.
The present invention is not limited to the above embodiments, and the technology of the present invention thought also can relate under the prerequisite that does not break away from aim of the present invention, and the general technical staff of the technical field of the invention can change the scope of enforcement.
Claims (7)
1. link safety cover; be to comprise major diameter one end that possesses link connecting part (130); the minor diameter the other end that possesses a connecting part (140); and the link that is formed on a plurality of peaks between a described end and the described the other end and paddy is with safety cover (100); it is characterized in that: with the peak adjacent to described axle connecting part (140) in described a plurality of peaks is the center; (130) one sides possess the inboard rake that projects upwards in the described link of sensing connecting part; and (140) one sides possess outside rake in the described axle of sensing connecting part, and the described inboard rake that projects upwards has radius R by integral body
0Face form, and described outside rake has radius R by the one end
1Outstanding downwards face form.
2. link safety cover according to claim 1 is characterized in that: the described radius R of described outside rake
1Be worth described relatively inboard rake radius R
0Be about 38%～71%.
3. link safety cover according to claim 1 is characterized in that: described outside rake has tilt angle A for link with the length-wise axis of safety cover, when described tilt angle A value is in 55o～85o scope, and described radius R
1The described radius R of the described relatively inboard rake of value
0In 41%～60% scope.
4. link safety cover according to claim 1 is characterized in that: described outside rake has tilt angle A for link with the length-wise axis of safety cover, when described tilt angle A value during greater than 85o, and described radius R
1The described radius R of the described relatively inboard rake of value
0In 38%～45% scope.
5. link safety cover according to claim 1 is characterized in that: when not forming the tilt angle between described outside rake and the inboard rake, and described radius R
1The described radius R of the described relatively inboard rake of value
0In 50%～71% scope.
6. link safety cover according to claim 1 is characterized in that: described link has total length L with safety cover at length direction, and the described relatively total length L of length direction total length L ' value under the assembled state is about 72%～92%.
7. link safety cover according to claim 1 is characterized in that: described a plurality of peaks number is 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010081748A KR100689749B1 (en) | 2001-12-20 | 2001-12-20 | boot for c/v joint |
| KR200181748 | 2001-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427189A true CN1427189A (en) | 2003-07-02 |
| CN100394053C CN100394053C (en) | 2008-06-11 |
Family
ID=19717304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021570477A Expired - Fee Related CN100394053C (en) | 2001-12-20 | 2002-12-20 | Protective cover for jointing |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100689749B1 (en) |
| CN (1) | CN100394053C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416124C (en) * | 2004-12-02 | 2008-09-03 | 富国股份有限公司 | Protective cover for constant-velocity universal joint |
| CN100436893C (en) * | 2003-12-22 | 2008-11-26 | 富国股份有限公司 | Manufacturing apparatus of resin boot for constant-velocity universal joint and method of manufacturing resin boot for constant-velocity universal joint, and resin boot for constant-velocity universal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917289B2 (en) * | 1978-08-25 | 1984-04-20 | 東洋ゴム工業株式会社 | Structure of boots for universal joints |
| JPH071531Y2 (en) * | 1987-08-31 | 1995-01-18 | キーパー株式会社 | Flexible boots for constant velocity joints |
| DE4426392A1 (en) * | 1993-09-02 | 1995-03-09 | Gkn Automotive Ag | Bellows seal |
| JP3725919B2 (en) * | 1995-09-26 | 2005-12-14 | キーパー株式会社 | Resin CVJ boots |
-
2001
- 2001-12-20 KR KR1020010081748A patent/KR100689749B1/en active IP Right Grant
-
2002
- 2002-12-20 CN CNB021570477A patent/CN100394053C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436893C (en) * | 2003-12-22 | 2008-11-26 | 富国股份有限公司 | Manufacturing apparatus of resin boot for constant-velocity universal joint and method of manufacturing resin boot for constant-velocity universal joint, and resin boot for constant-velocity universal |
| CN100416124C (en) * | 2004-12-02 | 2008-09-03 | 富国股份有限公司 | Protective cover for constant-velocity universal joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100394053C (en) | 2008-06-11 |
| KR20030052010A (en) | 2003-06-26 |
| KR100689749B1 (en) | 2007-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20121220 |