CN202674015U - Self-lubricating type optical shaft linear bearing - Google Patents
Self-lubricating type optical shaft linear bearing Download PDFInfo
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- CN202674015U CN202674015U CN 201220346805 CN201220346805U CN202674015U CN 202674015 U CN202674015 U CN 202674015U CN 201220346805 CN201220346805 CN 201220346805 CN 201220346805 U CN201220346805 U CN 201220346805U CN 202674015 U CN202674015 U CN 202674015U
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- linear bearing
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- type optical
- lubricating type
- optical axis
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Abstract
The utility model belongs to the technical field of a bearing, and relates to a linear bearing, in particular to a self-lubricating type optical shaft linear bearing. The self-lubricating type optical shaft linear bearing solves the technical problems that friction of the prior art is big, the lubricating effect is bad and the like. The self-lubricating type optical shaft linear bearing comprises a fixing seat. A retaining frame is arranged in the fixing seat, and a shaft hole is arranged in the retaining frame, wherein an optical shaft can penetrate through the shaft hole. The retaining frame in the peripheral direction of the shaft hole is further provided with a plurality of cycle rollaway nests, wherein the plurality of the cycle rollaway nests are communicated with the shaft hole. A plurality of running pulleys are arranged in the cycle rollaway nests. The self-lubricating type optical shaft linear bearing is characterized in that the retaining frame is provided with a self-lubricating structure which can enable oil films to be formed between contact surfaces of the running pulleys and the cycle rollaway nests when the running pulleys slide in the cycle rollaway nests. The self-lubricating type optical shaft linear bearing has the advantages of being reasonable in design, small in friction coefficient, good in lubricating effect, flexible in rolling motion of the running pulleys, long in service life and the like.
Description
Technical field
The utility model belongs to technical field of bearings, relates to linear bearing, especially relates to a kind of self-lubricating type optical axis linear bearing.
Background technique
Linear bearing be a kind of be a kind of linear motion system with low-cost production, be used for unlimited stroke and cylinder axis and be used.Because bearing ball and axle are and contact, so maneuvering load is little.Steel ball rotates with minimum surface friction drag, thereby can obtain high-precision easy motion.At present, the industry equipment such as domestic injection moulding lathe, chromatic printing machine, key body equipment, wad working machine, food processing machinery.A large amount of such straight-line motion mechanisms of optical axis linear bearing slide block guide rail that use in many automatic processing machine tools.Existing be in the technology because linear bearing is lubricated bad in load condition lower time, the easy clamping stagnation of steel ball, noise is large, has shortened the working life of bearing.
The problem that exists in order to solve prior art, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of linear bearing [application number: CN200520026793.0], comprises ball and axle sleeve, the axle sleeve inner peripheral surface is arranged in order the ball row vertically, it is characterized in that described ball row two ends are respectively arranged with retainer, be provided with spacer between the described ball row ball.
Such scheme has improved prior art to a certain extent, but when the ball of this scheme during at circulating rolling since in the raceway from not moistening structure, ball or easy clamping stagnation, noise is large; Secondly, frequently be to change ball, cost is higher.
Summary of the invention
The purpose of this utility model is for the problems referred to above, provides a kind of design more reasonable, and friction factor is little, high lubricating effect, and roller rolls flexibly, the self-lubricating type optical axis linear bearing of long service life.
For achieving the above object, the utility model has adopted following technical proposal: this self-lubricating type optical axis linear bearing, comprise fixed base, in fixed base, be provided with retainer, in retainer, be provided with the axis hole that runs through for optical axis, be positioned at retainer and also be provided with the circulation raceway that some roads are communicated with axis hole on the axis hole circumferencial direction, some rollers are arranged in the circulation raceway, it is characterized in that described retainer is provided with can make the certainly profit structure that forms oil film between roller and the circulation raceway surface of contact in the circulation raceway when roller slides.
In above-mentioned self-lubricating type optical axis linear bearing, described moistening structure comprises the some oil storage micropores that are arranged on the retainer certainly.
In this linear bearing, soak into whole bearing with lubricant oil first before installing and using, when in running order (comprising load condition), generate heat because of the roller rolling friction, the lubricant oil in the oil storage micropore is overflowed, reach the purpose of lubricated roller; In addition, this structure can reduce noise.After work stopped, lubricant oil flowed back to the oil storage micropore, reaches storage purpose.
In above-mentioned self-lubricating type optical axis linear bearing, described retainer comprises cylinder, is provided with reverser at the cylinder two ends, and the oil storage micropore is separately positioned on cylinder and the reverser.
In above-mentioned self-lubricating type optical axis linear bearing, described cylinder and reverser are made by copper based powder metallurgy material die casting.Certainly, mechanical property requires and material with oil storage function all can use as long as the material here can satisfy.
In above-mentioned self-lubricating type optical axis linear bearing, described per pass circulation raceway comprises respectively the rolling groove that is arranged on the cylinder, is provided with at reverser and roller can be come and gone the groove that slip and cross section take the shape of the letter U between adjacent two rolling grooves.Certainly, as long as coming and going slip with roller between two rolling grooves, other structure all is fine.
In above-mentioned self-lubricating type optical axis linear bearing, described cylinder is arranged on the fixed base by positioning means.
In above-mentioned self-lubricating type optical axis linear bearing, comprise the some raised lines that evenly are arranged on the cylinder periphery at described positioning means, be provided with some grooves for the raised line insertion at fixed base.Structural strength is high, and is not yielding.
In above-mentioned self-lubricating type optical axis linear bearing, described fixed base two ends are respectively equipped with jump-ring slot, and jump ring is installed in jump-ring slot, and jump ring is fixed on the reverser outer end.Fixed.
In above-mentioned self-lubricating type optical axis linear bearing, the described cylinder outside also is provided with at least bipassage ring connected in star.Fixed.
Compared with prior art, the advantage of this self-lubricating type optical axis linear bearing is: 1, design is more reasonable.2, soak into whole bearing with lubricant oil first before installing and using, when in running order (comprising load condition), generate heat because of the roller rolling friction, the lubricant oil in the oil storage micropore is overflowed, reach the purpose of lubricated roller; In addition, this structure can reduce noise.After work stopped, lubricant oil flowed back to the oil storage micropore, reaches storage purpose.3, structural strength is high, and is not yielding.4, long service life.
Description of drawings
Fig. 1 is the broken section structural representation that the utility model provides.
Fig. 2 is the side-looking structural representation that the utility model provides.
Fig. 3 is the cylinder broken section structural representation that the utility model provides.
Fig. 4 is the reverser structural representation that the utility model provides.
Among the figure, fixed base 1, retainer 2, axis hole 21, circulation raceway 22, roller 3, oil storage micropore 23, cylinder 2a, reverser 2b, rolling groove 22a, groove 22c, raised line 1a, groove 1b, jump-ring slot 11, jump ring 12, annular groove 5.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As Figure 1-3, this self-lubricating type optical axis linear bearing, comprise fixed base 1, in fixed base 1, be provided with retainer 2, in retainer 2, be provided with the axis hole 21 that runs through for optical axis, be positioned at retainer 2 and also be provided with the circulation raceway 22 that some roads are communicated with axis hole 21 on axis hole 21 circumferencial directions, some rollers 3 are arranged in the circulation raceway 22, it is characterized in that described retainer 2 is provided with can make the certainly profit structure that forms oil film between roller 3 and circulation raceway 22 surface of contact in circulation raceway 22 when roller 3 slides.Further, as shown in Figure 3, this certainly moistens structure and comprises the some oil storage micropores 23 that are arranged on the retainer 2.
In the present embodiment, soak into whole bearing with lubricant oil first before installing and using, when in running order (comprising load condition), generate heat because of roller 3 rolling friction, the lubricant oil in the oil storage micropore 23 is overflowed, reach the purpose of lubricated roller 3; In addition, this structure can reduce noise.After work stopped, lubricant oil flowed back to oil storage micropore 23, reaches storage purpose.
Concrete, as Figure 1-3, retainer 2 comprises cylinder 2a, is provided with reverser 2b at cylinder 2a two ends, oil storage micropore 23 is separately positioned on cylinder 2a and the reverser 2b.As a kind of optimized project, the cylinder 2a here and reverser 2b make by copper based powder metallurgy material die casting.Certainly, mechanical property requires and material with oil storage function all can use as long as the material here can satisfy.As optimized project, the cylinder 2a here is arranged on the fixed base 1 by positioning means; This positioning means comprises the some raised line 1a that evenly are arranged on cylinder 2a periphery, is provided with some groove 1b for raised line 1a insertion at fixed base 1.
More particularly, as shown in Figure 4, per pass circulation raceway 22 comprises respectively the rolling groove 22a that is arranged on the cylinder 2a, is provided with at reverser 2b and roller 3 can be come and gone the groove 22c that slip and cross section take the shape of the letter U between adjacent two rolling groove 22a.Further, for the firm fixed retainer 2 of energy, as shown in Figure 1, be respectively equipped with jump-ring slot 11 at fixed base 1 two ends, jump ring 12 is installed in jump-ring slot 11, jump ring 12 is fixed on reverser 2b outer end.For the firm fixedly cylinder 2a of energy, as shown in Figure 3, also be provided with at least bipassage ring connected in star 5 in the cylinder 2a outside.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as fixed base 1, retainer 2, axis hole 21, circulation raceway 22, roller 3, oil storage micropore 23, cylinder 2a, reverser 2b, rolling groove 22a, groove 22c, raised line 1a, groove 1b, jump-ring slot 11, jump ring 12, annular groove 5, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (9)
1. self-lubricating type optical axis linear bearing, comprise fixed base (1), in fixed base (1), be provided with retainer (2), in retainer (2), be provided with the axis hole (21) that runs through for optical axis, be positioned at retainer (2) and also be provided with the circulation raceway (22) that some roads are communicated with axis hole (21) on axis hole (21) circumferencial direction, some rollers (3) are arranged in the circulation raceway (22), it is characterized in that described retainer (2) is provided with can make the certainly profit structure that forms oil film between roller (3) and circulation raceway (22) surface of contact in circulation raceway (22) when roller (3) slides.
2. self-lubricating type optical axis linear bearing according to claim 1 is characterized in that, described moistening structure comprises the some oil storage micropores (23) that are arranged on the retainer (2) certainly.
3. self-lubricating type optical axis linear bearing according to claim 2, it is characterized in that, described retainer (2) comprises cylinder (2a), be provided with reverser (2b) at cylinder (2a) two ends, oil storage micropore (23) is separately positioned on cylinder (2a) and the reverser (2b).
4. self-lubricating type optical axis linear bearing according to claim 3 is characterized in that, described cylinder (2a) and reverser (2b) are made by copper based powder metallurgy material die casting.
5. the described self-lubricating type optical axis of any one linear bearing according to claim 1-4, it is characterized in that, described per pass circulation raceway (22) comprises respectively the rolling groove (22a) that is arranged on the cylinder (2a), is provided with and roller (3) can be come and gone the groove (22c) that slides and be the cross section U-shaped between adjacent two rolling grooves (22a) at reverser (2b).
6. self-lubricating type optical axis linear bearing according to claim 5 is characterized in that, described cylinder (2a) is arranged on the fixed base (1) by positioning means.
7. self-lubricating type optical axis linear bearing according to claim 6, it is characterized in that, described positioning means comprises the some raised lines (1a) that evenly are arranged on cylinder (2a) periphery, is provided with some grooves (1b) for raised line (1a) insertion at fixed base (1).
8. self-lubricating type optical axis linear bearing according to claim 7, it is characterized in that, be respectively equipped with jump-ring slot (11) at described fixed base (1) two ends, jump ring (12) is installed in jump-ring slot (11), and jump ring (12) is fixed on reverser (2b) outer end.
9. self-lubricating type optical axis linear bearing according to claim 5 is characterized in that, described cylinder (2a) outside also is provided with at least bipassage ring connected in star (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346805 CN202674015U (en) | 2012-07-17 | 2012-07-17 | Self-lubricating type optical shaft linear bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346805 CN202674015U (en) | 2012-07-17 | 2012-07-17 | Self-lubricating type optical shaft linear bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674015U true CN202674015U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220346805 Expired - Fee Related CN202674015U (en) | 2012-07-17 | 2012-07-17 | Self-lubricating type optical shaft linear bearing |
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| Country | Link |
|---|---|
| CN (1) | CN202674015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696359A (en) * | 2015-01-20 | 2015-06-10 | 侯如升 | Linear bearing device for digital controlled lathe |
-
2012
- 2012-07-17 CN CN 201220346805 patent/CN202674015U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696359A (en) * | 2015-01-20 | 2015-06-10 | 侯如升 | Linear bearing device for digital controlled lathe |
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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: 20130116 Termination date: 20180717 |