CN203532508U - Movable rod fixing device - Google Patents
Movable rod fixing device Download PDFInfo
- Publication number
- CN203532508U CN203532508U CN201320596045.0U CN201320596045U CN203532508U CN 203532508 U CN203532508 U CN 203532508U CN 201320596045 U CN201320596045 U CN 201320596045U CN 203532508 U CN203532508 U CN 203532508U
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- CN
- China
- Prior art keywords
- motion bar
- bearing
- fixing device
- restraint frame
- movable rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a fixing device and particularly relates to a movable rod fixing device. According to the technical scheme, the movable rod fixing device comprises a movable rod (1), limiting frames (2), a retractable protective sleeve (3), pressing plates (4), end plates (5), thrust joint bearings (7) and a support (8), wherein the two ends of the movable rod (1) penetrate through the support (8) and a middle annular boss is clamped between inner rings of the two thrust joint bearings (7); the limiting frames (2) are mounted at the two ends of the retractable movable rod (1); the end plates (5) are mounted on the end faces of the two sides of the support (8); the retractable protective sleeve (3) is arranged among the limiting frames (2) and the end plates (5); the retractable protective sleeve (3) is fixedly connected with the limiting frames (2) and the end plates (5) by the pressing plates. The movable rod fixing device can be applied to a hostile environment; the universal rotation of the movable rod can be realized and a bidirectional axial heavy load can also be borne.
Description
Technical field
The utility model relates to a kind of fixing device, is specifically related to a kind of motion bar fixing device.
Background technique
Fixing single plain radial bearing, spherical plain bearing rod end, angular contact articulated bearing and the thrust articulated bearings etc. of conventionally adopting of existing motion bar, these methods can realize universal rotational.Use the fixing device of plain radial bearing and spherical plain bearing rod end motion bar, although can bear radial load, can bear bi-directional axial load again, but owing to being subject to the restriction of plain radial bearing and spherical plain bearing rod end structural characteristics, therefore the thrust load maximum that it can bear is about 0.2 times of radial load, and using plain radial bearing and spherical plain bearing rod end to be difficult to meet to take radially heavy load is main moving bar piece fixed demand.Use the motion bar fixing device of single angular contact articulated bearing and thrust articulated bearing, though can bear huge thrust load or connected load, its radial load that can bear is about 0.5 times of thrust load, but it can only bear thrust load or the connected load of single direction.In addition, above-mentioned moving bar piece fixing device is not all provided with dustproof anticorrosive protective measure, and application is very restricted, and working life is also relatively short.
Summary of the invention
The purpose of this utility model is: a kind of motion bar fixing device is provided, and this device can universal rotational, can bear again huge bi-directional axial heavy load and radial load, and have dustproof anticorrosive protective action, has applied range, the advantages such as long service life.
The technical solution of the utility model is: a kind of motion bar fixing device, and it comprises: motion bar, restraint frame, telescopic protection cover, pressing plate, end plate, thrust articulated bearing and bearing;
The outer peripheral surface of motion bar is provided with annular boss radially;
Bearing is annular sleeve-like structure, and its internal surface is provided with the groove of ring-type, the thrust articulated bearing that is provided with in groove both sides, and the quantity of thrust articulated bearing has two, is fixedly mounted on the internal surface of bearing by its outer ring;
The two ends of motion bar are positioned at outside bearing, and the end face of the annular boss of motion bar is between the inner ring of two thrust articulated bearings; Restraint frame is arranged on the two ends of motion bar; End plate is arranged on the both sides end face of bearing, is provided with telescopic protection cover between restraint frame and end plate, and telescopic protection cover is fixedly connected with restraint frame, end plate respectively by pressing plate.
The beneficial effects of the utility model are: adopt two thrust articulated bearings, can make motion bar universal rotational within the specific limits on the one hand, can bear bi-directional axial heavy load on the other hand, can bear again the radial load of 2 times of single thrust articulated bearings.Between motion bar and restraint frame, bearing and end plate, be provided with dust ring or seal ring, play dustproof anticorrosive effect.Therefore the utility model can be applicable in rugged environment, and the universal rotational that can realize motion bar can bear bi-directional axial heavy load again.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of motion bar in the utility model;
Fig. 3 is the partial schematic diagram of Fig. 2;
Fig. 4 is the structural representation of bearing in the utility model;
In figure: 1-motion bar, 2-restraint frame, 3-telescopic protection cover, 4-pressing plate, 5-end plate, 7-thrust articulated bearing, 8-bearing, 9-spacer.
Embodiment
Referring to accompanying drawing 1, a kind of motion bar fixing device, it comprises: motion bar 1, restraint frame 2, telescopic protection cover 3, pressing plate 4, end plate 5, thrust articulated bearing 7 and bearing 8;
Referring to accompanying drawing 2,3, the outer peripheral surface of motion bar 1 is provided with annular boss radially; Motion bar 1 is the multidiameter shaft shape structure narrowing gradually from middle part to two ends, is provided with the groove of mounting screw in the fixed connection place with restraint frame 2, and the both ends of the surface of described annular boss are fixing as two thrust articulated bearing 7 inner rings; Owing to conventionally adopting bearing and coordinating of axle highi degree of accuracy to coordinate, when if motion bar 1 is longer, the processing of big-length and assembling will become more difficult, therefore the multidiameter shaft shape structure that motion bar 1 is designed to narrow has gradually reduced the workload of highi degree of accuracy processing on the one hand, can facilitate bearing assemble again on the other hand;
Referring to accompanying drawing 4, the outer bulge loop that is provided with of bearing 8, bulge loop is provided with mounting hole, its objective is conveniently and fix by bolt or screw with extraneous fixing device, bearing 8 two ends end faces are circumferentially provided with the tapped blind hole of a certain size and quantity, its objective is that the internal surface of bearing 8 is provided with groove in order to provide set screw mounting hole to end plate 5, this groove is that inner ring rotates and vacates certain space when making universal rotational to thrust articulated bearing 7, and groove section configuration is trapezoidal, square or circular arc; Groove both sides thrust articulated bearing 7 is installed, the quantity of thrust articulated bearing 7 has two, is fixedly mounted on the internal surface of bearing 8 by its outer ring;
The two ends of motion bar 1 are positioned at outside bearing 8, and the end face of the annular boss of motion bar 1 is between the inner ring of two thrust articulated bearings 7; Restraint frame 2 is arranged on the two ends of motion bar 1; End plate 5 is arranged on the both sides end face of bearing 8, is provided with telescopic protection cover 3 between restraint frame 2 and end plate 5, and telescopic protection cover 3 is fixedly connected with restraint frame 2, end plate 5 respectively by pressing plate 4;
In such scheme, it is rubber that described telescopic protection overlaps 3 materials, telescopic protection cover 3 is both scalable within the specific limits, can bear again a certain size the moment of torsion being produced by the kinetic friction of relative movement between seal ring or dust ring and motion bar 1, telescopic protection cover 3 mainly plays the effect that connects end plate 5 and motion bar 1; Pressing plate 4 is hard material, makes telescopic protection overlap 3 both ends of the surface and produces homogeneous deformation, has increased the sealability of telescopic protection cover 3 with end plate 5 or restraint frame 2;
Preferably, can between the annular boss of motion bar 1 and two thrust articulated bearings 7, be provided with spacer 9, in order to adjust the relative position of motion bar 1; Described spacer 9 can be positioned at any side of motion bar 1;
Preferably, between motion bar 1 and restraint frame 2, be provided with seal ring or dust ring, between end plate 5 and bearing 8, be provided with seal ring; Sealing or dustproof processing are in order to protect thrust articulated bearing 7 to avoid extraneous fluid corrosion and sand and dust erosion, to prevent the befouling environment such as lubrication leakage again on the other hand on the one hand.
The utility model is by changing the thickness of spacer 9, make two thrust articulated bearings, 7 rotation spheres on a sphere or within the scope of the sphere play of thrust articulated bearing 7 regulations, therefore the motion bar 1 between two thrust articulated bearings 7 just can be made universal rotational around the center of this sphere.Two thrust articulated bearings 7 are set on motion bar 1 axis in pairs, not only can bear bi-directional axial heavy load, and because radial load is born together by two thrust articulated bearings 7, the performance of bearing radial load also significantly strengthens.
Claims (6)
1. a motion bar fixing device, is characterized in that, it comprises: motion bar (1), restraint frame (2), telescopic protection cover (3), pressing plate (4), end plate (5), thrust articulated bearing (7) and bearing (8);
The outer peripheral surface of described motion bar (1) is provided with annular boss radially;
Described bearing (8) is annular sleeve-like structure, its internal surface is provided with the groove of ring-type, at the described thrust articulated bearing of being provided with of groove both sides (7), the quantity of described thrust articulated bearing (7) has two, is fixedly mounted on the internal surface of described bearing (8) by its outer ring;
The two ends of described motion bar (1) are positioned at outside described bearing (8), and the end face of the annular boss of described motion bar (1) is positioned between the inner ring of two described thrust articulated bearings (7); Described restraint frame (2) is arranged on the two ends of described motion bar (1); Described end plate (5) is arranged on the both sides end face of described bearing (8); between described restraint frame (2) and described end plate (5), be provided with described telescopic protection cover (3), described telescopic protection cover (3) is fixedly connected with described restraint frame (2), described end plate (5) respectively by described pressing plate (4).
2. a kind of motion bar fixing device as claimed in claim 1, is characterized in that, between the annular boss of described motion bar (1) and two described thrust articulated bearings (7), is provided with spacer (9).
3. a kind of motion bar fixing device as claimed in claim 1 or 2, is characterized in that, described motion bar (1) is the multidiameter shaft shape structure narrowing gradually from middle part to two ends, is provided with the groove of mounting screw in the fixed connection place with described restraint frame (2).
4. a kind of motion bar fixing device as claimed in claim 1 or 2, is characterized in that, between described motion bar (1) and described restraint frame (2), is provided with seal ring or dust ring.
5. a kind of motion bar fixing device as claimed in claim 1 or 2, is characterized in that, between described end plate (5) and described bearing (8), is provided with seal ring.
6. a kind of motion bar fixing device as claimed in claim 1 or 2, it is characterized in that, the outer bulge loop that is provided with of described bearing (8), described bulge loop is provided with mounting hole, described bearing (8) two ends end face is circumferentially provided with tapped blind hole, and the groove section configuration of described bearing (8) internal surface is trapezoidal, square or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320596045.0U CN203532508U (en) | 2013-09-26 | 2013-09-26 | Movable rod fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320596045.0U CN203532508U (en) | 2013-09-26 | 2013-09-26 | Movable rod fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532508U true CN203532508U (en) | 2014-04-09 |
Family
ID=50418720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320596045.0U Expired - Fee Related CN203532508U (en) | 2013-09-26 | 2013-09-26 | Movable rod fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081076A (en) * | 2019-05-09 | 2019-08-02 | 福建龙溪轴承(集团)股份有限公司 | A kind of intelligent lubricating long-life oscillating bearing flexural pivot |
| CN110566451A (en) * | 2019-09-29 | 2019-12-13 | 上海大隆机器厂有限公司 | Universal spherical structure for adjusting centering of plunger |
-
2013
- 2013-09-26 CN CN201320596045.0U patent/CN203532508U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081076A (en) * | 2019-05-09 | 2019-08-02 | 福建龙溪轴承(集团)股份有限公司 | A kind of intelligent lubricating long-life oscillating bearing flexural pivot |
| CN110566451A (en) * | 2019-09-29 | 2019-12-13 | 上海大隆机器厂有限公司 | Universal spherical structure for adjusting centering of plunger |
| CN110566451B (en) * | 2019-09-29 | 2021-11-05 | 上海大隆机器厂有限公司 | Universal spherical structure for adjusting centering of plunger |
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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: 20140409 Termination date: 20180926 |