CN2816465Y - Fitting structure of reciprocation axle and axle sleeve in reciprocation box - Google Patents
Fitting structure of reciprocation axle and axle sleeve in reciprocation box Download PDFInfo
- Publication number
- CN2816465Y CN2816465Y CN 200520064075 CN200520064075U CN2816465Y CN 2816465 Y CN2816465 Y CN 2816465Y CN 200520064075 CN200520064075 CN 200520064075 CN 200520064075 U CN200520064075 U CN 200520064075U CN 2816465 Y CN2816465 Y CN 2816465Y
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- Prior art keywords
- axle
- reciprocating
- axle sleeve
- reciprocating shaft
- utility
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Abstract
The utility model relates to a fitting structure of a reciprocation axle and an axle sleeve in a reciprocating box, which comprises a reciprocating axle in pin joint with one end of a connecting rod provided with an eccentric wheel and an axle sleeve matched with the reciprocating axle. The utility model is characterized in that the matching surface of the axle sleeve below the reciprocating axle is axially provided with at least two grooves with opposite axle centers in fan-angle arrangement, balls are arranged in the grooves and the balls form a rolling fit with the contact face of the reciprocating axle. Because the utility model adopts the structure that the matching surface of the axle sleeve below the reciprocating axle is axially provided with at least more than two grooves in which the balls are arranged, the reciprocating axle and the axle sleeve is changed into a rolling fit from the original sliding fit; the utility model not only reduces the abrasion caused by the friction generated by the movement between the reciprocating axle and the axle sleeve, but also because the weight of the reciprocating axle is born by two row of balls with high strength, the contact area between the reciprocating axle and the axle sleeve is reduced, so lubricating oil is easier to concentrate in the two grooves along the surface of the reciprocating axle and the utility model ensures the lubrication between two moving faces so as to extend the service life of a product.
Description
Technical field
The utility model relates to the reciprocal case that transmission of power is used, the cooperating structure of reciprocating shaft and axle sleeve in particularly a kind of reciprocal case.
Background technique
In existing reciprocal case transmission system, reciprocating shaft and shaft room adopt usually and are slidingly matched, and are abrasion state because reciprocating shaft is in for a long time with axle sleeve when work, cause the reciprocal case drive part life-span shorter, at above-mentioned existing problems.Chinese patent ZL01242984.8 discloses a kind of rollaway type pulsion stroke case, and as shown in Figure 6, it mainly is made of belt pulley 1, casing 2, main shaft 3, inside and outside eccentric mass 4A, 4B, rolling bearing 5, front axle 6 and rolling bearing 7.Though this design has overcome existing deficiency in the former design, reduced the friction between reciprocating shaft and the axle sleeve, but also can see that from this design proposal the weight of main transmission component in the stroke case is by roller bearings, so not only can influence the life-span of bearing because of the dynamic load effect of bearing, and also exist complex structure, volume is big, cost is high deficiency from the general arrangement.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of by changing axle and shaft room matching relationship, it is increased the service life and reciprocal case that the structure of signing an undertaking is simple, reasonable in design in the cooperating structure of reciprocating shaft and axle sleeve.
The technical solution of the utility model is: the cooperating structure of reciprocating shaft and axle sleeve in a kind of reciprocal case, comprise and the axle sleeve that eccentric connecting rod one end drives the reciprocating shaft that connects mutually and matches with reciprocating shaft is housed, be characterized in that the axle sleeve matching surface below reciprocating shaft is provided with the groove that at least two relative axle center are fan angle layout vertically, in groove, arrange and be laid with ball, cooperate for rolling between described ball and reciprocating shaft surface of contact.
Further, the cross section bottom notch of falling the trapezoidal upper of above-mentioned groove is rectangular, is provided with the maintenance support between groove and ball.
Further, the above-mentioned groove that is provided with vertically is two, and formed fan angle, its relative axle center is 45～75 degree.
The utility model is owing to adopted the interior arrangement more than at least two that is provided with vertically at the axle sleeve matching surface below the reciprocating shaft to be laid with the groove of ball, making reciprocating shaft be become to roll by original being slidingly matched with shaft room cooperates, the wearing and tearing that the friction that not only having significantly reduced moves between the two produces brings, and owing to the weight of reciprocating shaft is born by the higher ball of two row's intensity, reciprocating shaft and shaft room area of contact are reduced, easier like this lubricant oil focuses in two grooves along the axle surface, guarantee lubricating between two moving surfaces, thereby prolonged the working life of product.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the N-N sectional view of Fig. 1;
Fig. 3 is the local enlarged diagram of Fig. 2;
Fig. 4 has the structural representation of 3 grooves for the utility model;
Fig. 5 is the reciprocal case general structure of a utility model schematic representation;
Fig. 6 is the structural representation of reciprocal case in the prior art.
Embodiment
The utility model as shown in Figure 1, the cooperating structure of reciprocating shaft and axle sleeve in a kind of reciprocal case, comprise and the axle sleeve 3 that eccentric connecting rod 1 one ends drive the reciprocating shaft that connects 2 mutually and match with reciprocating shaft 2 is housed, be characterized in that axle sleeve 3 matching surfaces below reciprocating shaft 2 are provided with the groove 3a that at least two relative axle center are fan angle layout vertically, in groove 3a, arrange and be laid with ball 4, cooperate for rolling between described ball 4 and reciprocating shaft 2 surface of contact.
The cross section bottom of above-mentioned groove 3a is for trapezoidal, and upper notch is rectangular, is provided with to keep support 5 between groove 3a and ball 4.Above-mentioned maintenance support 5 is rectangular laminar body, and described maintenance support 5 is hidden and is embedded in the notch of groove 3a, and it is mutual to the frame hole 5a that puts the location to be provided with some 4 on balls that supply on maintenance support 5, and the diameter of described hole 5a is less than the diameter of ball 4.The above-mentioned groove 3a that is provided with vertically is two, and its relative axle center formed fan angle α is 40～70 degree.The above-mentioned groove 3a that is provided with vertically is three, and the formed fan of its a relative each other axle core angle β is 20～40 degree.
Claims (5)
1, the cooperating structure of reciprocating shaft and axle sleeve in a kind of reciprocal case, comprise and the axle sleeve (3) that eccentric connecting rod (1) one end drives the reciprocating shaft (2) that connects mutually and matches with reciprocating shaft (2) is housed, it is characterized in that axle sleeve (3) matching surface in reciprocating shaft (2) below is provided with the groove (3a) that at least two relative axle center are fan angle layout vertically, in groove (3a), arrange and be laid with ball (4), cooperate for rolling between described ball (4) and reciprocating shaft (2) surface of contact.
2, the cooperating structure of reciprocating shaft and axle sleeve in the reciprocal case according to claim 1, the cross section bottom that it is characterized in that above-mentioned groove (3a) is for trapezoidal, and upper notch is rectangular, is provided with to keep support (5) between groove (3a) and ball (4).
3, the cooperating structure of reciprocating shaft and axle sleeve in the reciprocal case according to claim 2, it is characterized in that above-mentioned maintenance support (5) is rectangular laminar body, described maintenance support (5) is hidden and is embedded in the notch of groove (3a), keep being provided with on the support (5) some for balls (4) between mutually every the frame hole (5a) of putting the location, the diameter in described hole (5a) is less than the diameter of ball (4).
4, the cooperating structure of reciprocating shaft and axle sleeve in the reciprocal case according to claim 1 is characterized in that the above-mentioned groove (3a) that is provided with vertically is two, and its relative axle center formed fan angle α is 40～70 degree.
5, the cooperating structure of reciprocating shaft and axle sleeve in the reciprocal case according to claim 1 is characterized in that the above-mentioned groove (3a) that is provided with vertically is three, and the formed fan of its a relative each other axle core angle β is 20～40 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064075 CN2816465Y (en) | 2005-09-06 | 2005-09-06 | Fitting structure of reciprocation axle and axle sleeve in reciprocation box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520064075 CN2816465Y (en) | 2005-09-06 | 2005-09-06 | Fitting structure of reciprocation axle and axle sleeve in reciprocation box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816465Y true CN2816465Y (en) | 2006-09-13 |
Family
ID=36996274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520064075 Expired - Fee Related CN2816465Y (en) | 2005-09-06 | 2005-09-06 | Fitting structure of reciprocation axle and axle sleeve in reciprocation box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816465Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972070A (en) * | 2016-07-13 | 2016-09-28 | 山东钢铁股份有限公司 | Rolling shaft sleeve |
| CN106812790A (en) * | 2015-11-16 | 2017-06-09 | 祥莹有限公司 | Ball bearing assembly |
| CN108730355A (en) * | 2018-05-31 | 2018-11-02 | 嘉兴懿铄精密模具有限公司 | A kind of lead rail axis bearing sleeve |
| CN109015266A (en) * | 2018-08-30 | 2018-12-18 | 曾洪都 | A kind of belt sander |
-
2005
- 2005-09-06 CN CN 200520064075 patent/CN2816465Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812790A (en) * | 2015-11-16 | 2017-06-09 | 祥莹有限公司 | Ball bearing assembly |
| CN106812790B (en) * | 2015-11-16 | 2019-04-05 | 祥莹有限公司 | Ball bearing assembly |
| CN105972070A (en) * | 2016-07-13 | 2016-09-28 | 山东钢铁股份有限公司 | Rolling shaft sleeve |
| CN108730355A (en) * | 2018-05-31 | 2018-11-02 | 嘉兴懿铄精密模具有限公司 | A kind of lead rail axis bearing sleeve |
| CN109015266A (en) * | 2018-08-30 | 2018-12-18 | 曾洪都 | A kind of belt sander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20060913 Termination date: 20120906 |