CN203158727U - Dustproof suspension bearing, screw conveyor and concrete mixing plant - Google Patents
Dustproof suspension bearing, screw conveyor and concrete mixing plant Download PDFInfo
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- CN203158727U CN203158727U CN 201320033813 CN201320033813U CN203158727U CN 203158727 U CN203158727 U CN 203158727U CN 201320033813 CN201320033813 CN 201320033813 CN 201320033813 U CN201320033813 U CN 201320033813U CN 203158727 U CN203158727 U CN 203158727U
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- bearing
- rotating shaft
- dustproof
- suspension bearing
- bearing shell
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Abstract
The utility model relates to a dustproof suspension bearing, a screw conveyor and a concrete mixing plant. The dustproof suspension bearing comprises an upper bearing bush and a lower bearing bush, wherein the upper bearing bush and the lower bearing bush are of split structures, and a shaft hole formed by installing the upper bearing bush and the lower bearing bush together is provided with a rotating shaft in a penetrating mode. An oil way is arranged in the upper bearing bush, and sealing rings are arranged between the inner side wall, at two sides of the oil way, of the shaft hole and the outer side wall of the rotating shaft. The dustproof suspension bearing further comprises a felt bearing which is arranged between the two sealing rings and between the inner side wall, at an exit of the oil way, of the shaft hole and the outer side wall of the rotating shaft. The dustproof suspension bearing is good in dustproof effect and solves the technical problems that a suspension bearing in the prior art is poor in dustproof effect and short in service life.
Description
Technical field
The utility model relates to a kind of cement concrete processing equipment field, the concrete mixing plant that relate in particular to a kind of dustproof suspension bearing, the conveyor screw of this dustproof suspension bearing is set and this conveyor screw is set.
Background technology
Conveyor screw is used for finishing the work that the powder (cement, breeze etc.) of silo (silo: be used for the storage of concrete mixing plant powder) is transported to the powder weighing hopper of main building metrology in the production process of concrete mixing plant.As Figure 1-3, when needs are prepared burden, silo 1 ' below discharging opening 2 ' is located butterfly valve 3 ' and is opened, powder enters the inlet point of conveyor screw 4 ', conveyor screw 4 ' drives screw shaft 6 ' rotation by reducing motor 5 ', the promotion powder advances to discharging opening 7 ' from the inlet point of conveyor screw 4 ', falls into the powder weighing hopper 8 ' that is attached thereto by discharging opening 7 ' again.Powder weighing hopper 8 ' receives the powder of conveyor screw 4 ' conveying and takes by weighing the powder of required weight.
Suspension bearing 9 ' is the critical component in the conveyor screw 4 ', plays the effect of support helix axle 6 '.Because suspension bearing 9 ' is immersed in the powder for a long time and works, therefore sealing, lubricated comparatively difficulty are are very easily worn and torn.And suspension bearing 9 ' in a single day damages, and easy-maintaining will not bring very big inconvenience to production process, will reduce the whole work efficiency of concrete mixing plant.
Fig. 4, Fig. 5 are integral type suspension bearings of the prior art.As Fig. 4, shown in Figure 5, be provided with felt bearing 12 ' between bearing shell 10 ' and the rotating shaft 11 ', bearing shell 10 ' both sides are respectively arranged with gland 13 ', and gland 13 ' adopts tie bolt 14 ' to be connected with bearing shell 10 '.Inject lubricating oil from lubricating cup 15 ', lubricating oil is through oil-feed bolt 16 ' and oil duct 17 ', lubricating effect is played in the rotation of countershaft 11 ', lubricating oil is absorbed by felt bearing 12 ' simultaneously, 12 ' the oil suction of felt bearing is expanded, and is positioned between rotating shaft 11 ' and the axis hole, can reduce the friction between rotating shaft 11 ' and the axis hole, thereby prolong suspension bearing service life, can also stop powder to enter oil duct 17 ' from the slit between rotating shaft 11 ' and gland 13 ' and the bearing shell 10 ' and form caking with axis hole.
Because the scantling of structure of integral type suspension bearing is big, cause the slit between rotating shaft 11 ' and gland 13 ' and the bearing shell 10 ' also corresponding bigger, so in use powder still enters oil duct 17 ' from the slit between rotating shaft 11 ' and gland 13 ' and the bearing shell 10 ' easily, putty takes place, in case and felt bearing 12 ' lost efficacy, it is bigger to change difficulty.
Fig. 6, Fig. 7 are split type suspension bearings of the prior art.As Fig. 6, shown in Figure 7, top bearing shell 20 ' is connected by tie bolt 22 ' with bottom bearing shell 21 ', and two seal rings 24 ' are housed in the rotating shaft 23 ', and seal ring 24 ' is interference fit with rotating shaft 23 '.Inject lubricating oil from lubricating cup 25 ', lubricating oil is through oil-feed bolt 26 ' and oil duct 27 ', lubricating effect is played in the rotation of countershaft 23 ', and seal ring 24 ' can stop powder to enter oil duct 27 ' and axis hole from the slit between rotating shaft 11 ' and the top bearing shell 20 ' and form caking.
As shown in Figure 8, shown in the figure is that split type suspension bearing is installed in the scheme drawing in the conveyor screw 4 ', and spline is arranged at the two ends of rotating shaft 23 ', is connected with screw shaft 6 '.In fact, that connection mode is installed in conveyor screw 4 ' is identical for integral type suspension bearing and split type suspension bearing.
Although split type suspension bearing scantling of structure is little, easy for installation, directly contact between the internal face of rotating shaft 23 ' and bearing shell, in use cause wearing and tearing easily, influence service life.
The utility model content
The purpose of this utility model is to propose a kind of dustproof suspension bearing, conveyor screw and concrete mixing plant, and its dustproof effect is good, has solved the technical matters of the deficiency that the dustproof weak effect of suspension bearing, service life lack in the prior art.
For achieving the above object, the utility model provides following technical scheme:
A kind of dustproof suspension bearing, the top bearing shell (1) and the bottom bearing shell (2) that comprise split-type structural, the axis hole (3) that described top bearing shell (1) and bottom bearing shell (2) are installed together formation has penetrated rotating shaft (4), described top bearing shell (1) has oil duct (5), is provided with seal ring (6) between the madial wall of the described axis hole (3) of described oil duct (5) both sides and the lateral wall of described rotating shaft (4); It also comprises felt bearing (7), and described felt bearing (7) is arranged between the two described seal rings, and, be positioned between the lateral wall of the madial wall of described axis hole (3) in exit of described oil duct (5) and described rotating shaft (4).
Further, form interference fit between described seal ring (6) and the described rotating shaft (4).
Further, the two ends of described rotating shaft (4) are spline (8).
Further, described top bearing shell (1) is captiveed joint by bolt (9) with bottom bearing shell (2).
Further, the oil inlet of described oil duct (5) is provided with oil-feed bolt (10).
Further, the import of described oil-feed bolt (10) is provided with lubricating cup (11).
Further, described top bearing shell (1) is T-shaped, and its end face is circular-arc, and curvature is identical with the curvature of the pipe diameter that is set in its outside.
Further, the top of described top bearing shell (1) also offers the through hole (12) that wears bolt.
The utility model also provides a kind of conveyor screw, comprises described dustproof suspension bearing.
The utility model also provides a kind of concrete mixing plant, its: comprise described conveyor screw.
Based on the arbitrary technical scheme in the technique scheme, the utility model embodiment can produce following technique effect at least:
The utility model combines split type suspension bearing its specific structure compactness in the prior art, the felt bearing can reduce friction in advantage easy for installation and the whole suspension bearing, prolong the suspension bearing advantage in service life, the felt bearing is set between axis hole and rotating shaft, between the external diameter of the internal diameter of the axis hole at felt bearing two ends and rotating shaft seal ring is set simultaneously, with the compacting before installation of felt bearing, in the use, the felt bearing just can expand in oil suction, the labyrinth packing and the seal ring that arrange with two ends form two seals, thereby can prevent more effectively that powder from entering in axis hole and the oil duct forms caking and suspension bearing is damaged, so the utility model good dustproof effect, long service life, simple in structure, easily manufactured, can solve the dustproof weak effect of present suspension bearing, the deficiency that service life is short.
In addition, because top bearing shell of the present utility model and bottom bearing shell are bolted to connection, when seal ring and felt bearing failure or axis hole and rotating shaft are stained with dust, this bolted mode makes top bearing shell and bottom bearing shell dismounting very convenient, can in time more change the seal ring of damage and felt bearing or clean the dust that adheres to, be beneficial to and increase the service life.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of concrete mixing plant in the prior art;
Fig. 2 is the partial enlarged drawing in I district among Fig. 1;
Fig. 3 is the partial enlarged drawing in II district among Fig. 1;
Fig. 4 is the structural representation of integral type suspension bearing in the prior art;
Fig. 5 is that A '-A ' of Fig. 4 is to cross-sectional schematic;
Fig. 6 is the structural representation of split type suspension bearing in the prior art;
Fig. 7 is that B '-B ' among Fig. 6 is to cross-sectional schematic;
Fig. 8 is the scheme of installation of split type suspension bearing in conveyor screw in the prior art;
Fig. 9 is the structural representation of suspension bearing provided by the utility model;
Figure 10 is that A-A among Fig. 9 is to cross-sectional schematic.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As Fig. 9, shown in Figure 10, dustproof suspension bearing provided by the utility model comprises the bearing shell of split-type structural, and namely top bearing shell 1 and bottom bearing shell 2 are identical with the bearing shell structure of split type suspension bearing of the prior art.Top bearing shell 1 and bottom bearing shell 2 are installed together the back and form axis hole 3, and axis hole 3 is used for penetrating rotating shaft 4.Top bearing shell 1 has oil duct 5, is provided with seal ring 6 between the madial wall of the axis hole 3 of oil duct 5 both sides and the lateral wall of rotating shaft 4, and it is symmetrically arranged that Figure 10 shows two seal rings 6.But, because rotating shaft 4 directly contacts with the inwall of bearing shell, in use cause wearing and tearing easily, influence service life.In the present embodiment, what seal ring 6 adopted is labyrinth packing, but is not limited thereto.
The utility model is on the basis of the structure of existing split type suspension bearing, also comprise felt bearing 7, felt bearing 7 is arranged between two seal rings 6, and, felt bearing 7 is arranged between the lateral wall of the madial wall of axis hole 3 at oil duct 5 places and rotating shaft 4, when felt bearing 7 after expanding under the lubricating oil saturation effect, can prevent from the madial wall of axis hole 3 relative slip taking place, but also have the better seal effect.
The utility model combines split type suspension bearing its specific structure compactness in the prior art, felt bearing 7 can reduce friction in advantage easy for installation and the whole suspension bearing, prolong the suspension bearing advantage in service life, between axis hole 3 and rotating shaft 4, felt bearing 7 is set, between the external diameter of the internal diameter of the axis hole 3 at felt bearing 7 two ends and rotating shaft 4 seal ring 6 is set simultaneously, with felt bearing 7 compacting before installation, in the use, felt bearing 7 just can expand in oil suction, with two ends seal ring 6 is set and forms two seals, can prevent from more effectively therefore that powder from entering to form caking in axis hole 3 and the oil duct 5 and suspension bearing is damaged.
In above-described embodiment, form interference fit between seal ring 6 and the rotating shaft 4, together rotate carry-over moment with rotating shaft 4 in the working process.
In the various embodiments described above, spline 8 all is arranged at the two ends of rotating shaft 4, utilizes being connected of screw shaft in spline 8 and the conveyor screw, transmits the torque of the reducing motor output in the conveyor screw better.
In the various embodiments described above, top bearing shell 1 is captiveed joint by bolt 9 with bottom bearing shell 2, damage or when axis hole 3 and rotating shaft 4 be stained with dust at seal ring 6 and felt bearing 7, this bolted mode makes top bearing shell 1 and bottom bearing shell 2 dismounting very convenient, can in time more change seal ring 6 and the felt bearing 7 of damage or clean the dust that adheres to, be beneficial to the service life that prolongs suspension bearing provided by the utility model.
In the various embodiments described above, the oil inlet of oil duct 5 is provided with oil-feed bolt 10, and the import of oil-feed bolt 10 is provided with lubricating cup 11.Behind lubricating cup 11 injection lubricating oils, lubricating oil is through oil-feed bolt 10 and oil duct 5, and lubricating effect is played in the rotation of countershaft 4.In the present embodiment, lubricating cup 11 is gauge member, and standard can be with reference to JB/T7940.1-1995.
In the various embodiments described above, top bearing shell 1 is T-shaped, and its end face is circular-arc, and curvature is identical with the curvature of the pipe diameter that is set in its outside, therefore can be connected on the inwall of steel pipe in the conveyor screw comparatively identically.
In the various embodiments described above, the top of top bearing shell 1 also offers through hole 12, is used for wearing bolt, to be connected with steel pipe in the conveyor screw.
When dustproof suspension bearing provided by the utility model is installed, at first, the felt bearing carrier ring is located at the rotating shaft middle part; Then, in the rotating shaft at felt bearing two ends, load onto seal ring respectively, and the spacing between two seal rings is less than the radical length of axis hole; Afterwards, top bearing shell is put in the rotating shaft of loading onto felt bearing and seal ring, the recycling bolt is fixed on the top bearing shell bottom with bottom bearing shell; The recycling bolt is connected suspension bearing on the inwall of steel pipe; At last, the oil-feed bolt that lubricating cup is housed is installed in the oil duct oil inlet at Shang watt axle top, installation.
The utility model also provides a kind of conveyor screw, and it comprises the dustproof suspension bearing in the various embodiments described above.The described other parts that the conveyor screw of dustproof suspension bearing is installed can be with reference to prior art, and this paper no longer launches to describe.
In addition, the utility model also provides a kind of concrete mixing plant, and it comprises the conveyor screw in above-described embodiment.Similarly, the other parts of described concrete mixing plant can be with reference to prior art, and this paper no longer launches to describe.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (10)
1. dustproof suspension bearing, the top bearing shell (1) and the bottom bearing shell (2) that comprise split-type structural, the axis hole (3) that described top bearing shell (1) and bottom bearing shell (2) are installed together formation has penetrated rotating shaft (4), described top bearing shell (1) has oil duct (5), is provided with seal ring (6) between the madial wall of the described axis hole (3) of described oil duct (5) both sides and the lateral wall of described rotating shaft (4); It is characterized in that: also comprise felt bearing (7), described felt bearing (7) is arranged between the two described seal rings, and, be positioned between the lateral wall of the madial wall of described axis hole (3) in exit of described oil duct (5) and described rotating shaft (4).
2. dustproof suspension bearing as claimed in claim 1 is characterized in that: form interference fit between described seal ring (6) and the described rotating shaft (4).
3. dustproof suspension bearing as claimed in claim 1, it is characterized in that: the two ends of described rotating shaft (4) are spline (8).
4. dustproof suspension bearing as claimed in claim 1, it is characterized in that: described top bearing shell (1) is captiveed joint by bolt (9) with bottom bearing shell (2).
5. as each described dustproof suspension bearing among the claim 1-4, it is characterized in that: the oil inlet of described oil duct (5) is provided with oil-feed bolt (10).
6. dustproof suspension bearing as claimed in claim 5, it is characterized in that: the import of described oil-feed bolt (10) is provided with lubricating cup (11).
7. dustproof suspension bearing as claimed in claim 6, it is characterized in that: described top bearing shell (1) is T-shaped, and its end face is circular-arc, and curvature is identical with the curvature of the pipe diameter that is set in its outside.
8. dustproof suspension bearing as claimed in claim 7, it is characterized in that: the top of described top bearing shell (1) also offers the through hole (12) that wears bolt.
9. a conveyor screw comprises as each described dustproof suspension bearing among the claim 1-8.
10. a concrete mixing plant is characterized in that: comprise conveyor screw as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320033813 CN203158727U (en) | 2013-01-23 | 2013-01-23 | Dustproof suspension bearing, screw conveyor and concrete mixing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320033813 CN203158727U (en) | 2013-01-23 | 2013-01-23 | Dustproof suspension bearing, screw conveyor and concrete mixing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203158727U true CN203158727U (en) | 2013-08-28 |
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ID=49019931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320033813 Expired - Fee Related CN203158727U (en) | 2013-01-23 | 2013-01-23 | Dustproof suspension bearing, screw conveyor and concrete mixing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203158727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806647A (en) * | 2015-04-30 | 2015-07-29 | 连云港天明装备有限公司 | Crowned tooth shaft coupler device for scraper |
-
2013
- 2013-01-23 CN CN 201320033813 patent/CN203158727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806647A (en) * | 2015-04-30 | 2015-07-29 | 连云港天明装备有限公司 | Crowned tooth shaft coupler device for scraper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180416 Address after: 221000 Guangde Road, Xuzhou economic and Technological Development Zone, Xuzhou, Jiangsu, 99 Patentee after: Xuzhou run construction technology Co., Ltd. Address before: 221004 No. 29, Peach Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee before: XCMG Schwing Machinery Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20210123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |