CN212215373U - Transmission mechanism and stirring device - Google Patents
Transmission mechanism and stirring device Download PDFInfo
- Publication number
- CN212215373U CN212215373U CN202020179040.8U CN202020179040U CN212215373U CN 212215373 U CN212215373 U CN 212215373U CN 202020179040 U CN202020179040 U CN 202020179040U CN 212215373 U CN212215373 U CN 212215373U
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- bearing
- coupling part
- self
- aligning roller
- thrust ball
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Abstract
The utility model relates to a drive mechanism and agitating unit. This drive mechanism includes elastic coupling, bearing frame and bearing assembly, elastic coupling includes interconnect's first shaft coupling portion and second shaft coupling portion, first shaft coupling portion is used for connecting the speed reducer output shaft, second shaft coupling portion is used for connecting the transmission shaft, second shaft coupling portion is inserted and is located in the bearing frame, the bearing assembly includes self-aligning roller bearing and thrust ball bearing, self-aligning roller bearing with thrust ball bearing is in the footpath of second shaft coupling portion set up in the second shaft coupling portion with between the bearing frame, self-aligning roller bearing with thrust ball bearing is in set up separately in the axial of second shaft coupling portion. The utility model discloses a drive mechanism can bear axial and radial load well to prevent effectively that the shafting from taking place the axial float of big displacement, thereby improve the life of mechanical seal and speed reducer greatly.
Description
Technical Field
The utility model relates to an agitated vessel technical field especially relates to a drive mechanism and have this drive mechanism's agitating unit suitable for high pressure operating mode.
Background
At present, as shown in fig. 1, a transmission mechanism of a stirring apparatus includes a first coupling 20 for positioning an output shaft 10 of a speed reducer and a second coupling 40 for positioning a stirring shaft 30, the first coupling 20 and the second coupling 40 are directly locked and connected to each other, and the second coupling 40 is directly and fixedly supported by a rack bearing assembly 50 (a bearing therein is, for example, a self-aligning roller bearing), so that the structure of the entire transmission mechanism is very compact, the height of the transmission mechanism is effectively reduced to a certain extent, the radial runout of the stirring shaft can be limited, and the service life of a mechanical seal is prolonged.
However, the above-described transmission mechanism is suitable for a case where the axial force is not large. If under high pressure operating mode, the (mixing) shaft can bear very big axial load, because the great and not good control of self-aligning roller bearing department axial play who adopts among the existing structure, axial load arouses easily that the shafting takes place great axial float and this axial force can further transmit to the speed reducer to cause the increase of mechanical seal liquid-sealing leakage rate and shorten the life-span of speed reducer.
SUMMERY OF THE UTILITY MODEL
Based on the above-mentioned defect among the prior art, the utility model aims to provide a can bear great axial and radial load's drive mechanism and have this drive mechanism's agitating unit.
Therefore, the utility model provides the following technical scheme.
The utility model provides a transmission mechanism, which comprises an elastic coupling, a bearing seat and a bearing component,
the elastic coupling comprises a first coupling part and a second coupling part, the first coupling part and the second coupling part are in transmission connection through a pin type elastic block, the first coupling part is used for connecting an output shaft of a speed reducer, the second coupling part is used for connecting a transmission shaft,
the second coupling portion is inserted in the bearing housing,
the bearing assembly comprises a self-aligning roller bearing and a thrust ball bearing, the self-aligning roller bearing and the thrust ball bearing are arranged between the second coupling part and the bearing seat in the radial direction of the second coupling part, and the self-aligning roller bearing and the thrust ball bearing are arranged at intervals in the axial direction of the second coupling part.
In at least one embodiment, a first oil seal is provided between one end of the bearing housing and the second coupling portion.
In at least one embodiment, the transmission mechanism further includes a bearing cover disposed at an end of the bearing housing remote from the first coupling portion.
In at least one embodiment, a second oil seal is provided between the bearing gland and the first coupling part.
In at least one embodiment, the transmission mechanism further comprises a fixed support, and the bearing seat is arranged on the fixed support.
In at least one embodiment, the bearing assembly further includes a first connecting block, a second connecting block, and a lock nut, the first connecting block, the thrust ball bearing, the second connecting block, the self-aligning roller bearing, and the lock nut being sequentially arranged in the axial direction,
the locking nut is in threaded connection with the second coupler part, so that the locking nut is tightly abutted to the aligning roller bearing, the aligning roller bearing is tightly abutted to the thrust ball bearing through the second connecting block, the thrust ball bearing is tightly abutted to the first connecting block, and the first connecting block is tightly abutted to the bearing seat.
In at least one embodiment, the thrust ball bearing is disposed closer to the first coupling part than the self-aligning roller bearing.
The utility model also provides an agitating unit, agitating unit includes speed reducer output shaft, transmission shaft and any embodiment of the aforesaid drive mechanism, the speed reducer output shaft with first shaft coupling portion connects, the transmission shaft with second shaft coupling portion connects.
In at least one embodiment, the reducer output shaft and the first coupling portion are keyed or connected by a fastener.
In at least one embodiment, the drive shaft and the second coupling portion are keyed or connected by a fastener.
Through adopting foretell technical scheme, the utility model provides a transmission mechanism, through making to connect through elastic coupling between transmission shaft and the speed reducer, the bearing of speed reducer just can not bear big axial force, the life of speed reducer can prolong, through setting the bearing in the frame into the combination that self-aligning roller bearing adds thrust ball bearing, make transmission mechanism both can bear radial load well, also can bear axial load well, bearing play when the transmission moves simultaneously is well controlled, can prevent effectively that the shafting from taking place the axial float of big displacement, thereby improve the life of mechanical seal and speed reducer greatly.
It will be appreciated that a stirring device having such a transmission will also have the same beneficial effects.
Drawings
Fig. 1 shows a schematic diagram of a transmission mechanism in the prior art.
Fig. 2 shows a schematic structural diagram of the transmission mechanism of the present invention.
Description of the reference numerals
10 a reducer output shaft; 20 a first coupling; 30 stirring shaft; 40 a second coupling; 50 a frame bearing assembly;
1, an elastic coupling; 11 a first coupling part; 12 a second coupling part;
2, bearing seats; 3 a bearing assembly; 31 self-aligning roller bearings; 32 thrust ball bearings; 33 a first connecting block; 34 a second connecting block; 35 locking the nut;
4 bearing gland bush; 5 a first oil seal; 6 second oil seal.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the detailed description is only intended to teach one skilled in the art how to practice the invention, and is not intended to exhaust all possible ways of practicing the invention, nor is it intended to limit the scope of protection of the invention.
A specific embodiment of the transmission according to the invention is described below with reference to fig. 2.
In the present embodiment, as shown in fig. 2, the transmission mechanism includes an elastic coupling 1, a bearing housing 2, a bearing assembly 3, a bearing cover 4, a first oil seal 5, and a second oil seal 6.
The resilient coupling 1 comprises a first coupling part 11 and a second coupling part 12 connected to each other. The first coupling part 11 is used for connecting an output shaft of a speed reducer, and the second coupling part 12 is used for connecting a transmission shaft. The first coupling part 11 and the second coupling part 12 can be in transmission connection through a pin type elastic block.
The second coupling portion 12 is inserted in the bearing housing 2.
The bearing assembly 3 includes a self-aligning roller bearing 31, a thrust ball bearing 32, a first connecting block 33, a second connecting block 34, and a lock nut 35. The self-aligning roller bearing 31 and the thrust ball bearing 32 are provided between the second coupling portion 12 and the bearing housing 2 in the radial direction of the second coupling portion 12, and the self-aligning roller bearing 31 and the thrust ball bearing 32 are provided at intervals in the axial direction of the second coupling portion 12 (at intervals by a second connecting block 34 described below). The self-aligning roller bearing 31 and the thrust ball bearing 32 are used to support the second coupling portion 12. The second coupling portion 12 is supported by the two bearings, i.e., the self-aligning roller bearing 31 and the thrust ball bearing 32, so that the transmission mechanism can well bear radial force (the self-aligning roller bearing 31 can well bear radial force) and can also well bear axial force (the thrust ball bearing 32 can well bear axial force). Meanwhile, the bearing play during transmission operation is well controlled, the axial float phenomenon of the transmission shaft can be effectively prevented, and the operation stability of a mechanical seal (not shown in the figure) is ensured.
In the present embodiment, as shown in fig. 2, the first connecting block 33, the thrust ball bearing 32, the second connecting block 34, the self-aligning roller bearing 31, and the lock nut 35 are sequentially disposed in the axial direction of the second coupling portion 12, the lock nut 35 is screwed to the outer wall of the second coupling portion 12, and the lock nut 35 abuts against the lower end surface of the self-aligning roller bearing 31, and accordingly, the self-aligning roller bearing 31 abuts against the lower end surface of the thrust ball bearing 32 through the second connecting block 34, the upper end surface of the thrust ball bearing 32 abuts against the first connecting block 33, and the first connecting block 33 abuts against the upper portion of the bearing housing 2. In this way, the play of the bearing can be easily adjusted by adjusting the degree of locking of the lock nut 35.
In the present embodiment, as shown in fig. 2, the thrust ball bearing 32 is provided closer to the first coupling portion 11 than the self-aligning roller bearing 31.
In the present embodiment, as shown in fig. 2, a first oil seal 5 is provided between one end of the bearing housing 2 and the second coupling portion 12, a bearing cover 4 is provided at the other end of the bearing housing 2, and a second oil seal 6 is provided between the bearing cover 4 and the second coupling portion 12.
The bearing gland 4, the first oil seal 5 and the second oil seal 6 are matched to seal a space for mounting a bearing between the bearing seat 2 and the second coupler part 12.
In this embodiment, the transmission mechanism may further include a fixed support (not shown in the figure), and the bearing seat 2 may be fixedly mounted on the fixed support.
Through adopting the technical scheme, according to the utility model discloses a drive mechanism has following advantage at least:
the utility model discloses an among the drive mechanism, through making through the elastic coupling connection between transmission shaft and the speed reducer, the bearing of speed reducer just can not bear big axial force, the life of speed reducer can prolong, through setting the bearing in the frame to the combination that self-aligning roller bearing adds thrust ball bearing, make drive mechanism both can bear the radial force well, also can bear the axial force well, thrust bearing's bearing play is well controlled simultaneously, can prevent the axial float of the big displacement of emergence of shafting, be favorable to guaranteeing mechanical seal's operating stability. The utility model discloses a drive mechanism is particularly useful for the high pressure operating mode.
The above embodiments of the present invention have been described in detail, but it should be added that:
although it has been described in the above embodiment that the thrust ball bearing is provided closer to the first coupling than the self-aligning roller bearing, the present invention is not limited thereto, and the thrust ball bearing may be provided farther from the first coupling than the self-aligning roller bearing.
Furthermore, the utility model also provides a stirring device, this stirring device include speed reducer output shaft, transmission shaft and above-mentioned embodiment drive mechanism. Wherein the reducer output shaft is connected (e.g., keyed or connected by fasteners) to the first coupling portion 11. The drive shaft is connected (e.g., by a keyed connection or by a fastener) to the second coupling portion 12.
Claims (10)
1. A transmission mechanism is characterized in that the transmission mechanism comprises an elastic coupling (1), a bearing seat (2) and a bearing assembly (3),
the elastic coupling (1) comprises a first coupling part (11) and a second coupling part (12), the first coupling part (11) and the second coupling part (12) are in transmission connection through a pin type elastic block, the first coupling part (11) is used for being connected with an output shaft of a speed reducer, the second coupling part (12) is used for being connected with a transmission shaft,
the second coupling part (12) is inserted into the bearing seat (2),
the bearing assembly (3) comprises a self-aligning roller bearing (31) and a thrust ball bearing (32), the self-aligning roller bearing (31) and the thrust ball bearing (32) are arranged between the second coupling part (12) and the bearing seat (2) in the radial direction of the second coupling part (12), and the self-aligning roller bearing (31) and the thrust ball bearing (32) are arranged at intervals in the axial direction of the second coupling part (12).
2. A transmission mechanism according to claim 1, characterised in that a first oil seal (5) is provided between one end of the bearing housing (2) and the second coupling part (12).
3. Transmission according to claim 1, characterized in that it further comprises a bearing gland (4), said bearing gland (4) being arranged at an end of said bearing housing (2) remote from said first coupling part (11).
4. A transmission mechanism according to claim 3, characterised in that a second oil seal (6) is provided between the bearing gland (4) and the first coupling part (11).
5. Transmission according to claim 1, characterized in that it further comprises a fixed support on which the bearing block (2) is arranged.
6. Transmission mechanism according to claim 1, characterized in that the bearing assembly (3) further comprises a first connecting block (33), a second connecting block (34) and a locking nut (35), the first connecting block (33), the thrust ball bearing (32), the second connecting block (34), the self-aligning roller bearing (31) and the locking nut (35) being arranged in the axial direction in succession,
the locking nut (35) is in threaded connection with the second coupler part (12), so that the locking nut (35) abuts against the self-aligning roller bearing (31), the self-aligning roller bearing (31) abuts against the thrust ball bearing (32) through the second connecting block (34), the thrust ball bearing (32) abuts against the first connecting block (33), and the first connecting block (33) abuts against the bearing seat (2).
7. Transmission according to claim 6, characterized in that the thrust ball bearing (32) is arranged closer to the first coupling part (11) than the self-aligning roller bearing (31).
8. A stirring device, characterized in that it comprises a reducer output shaft, a transmission shaft and a transmission according to any one of claims 1 to 7,
the output shaft of the speed reducer is connected with the first coupling part (11), and the transmission shaft is connected with the second coupling part (12).
9. Stirring device according to claim 8, characterised in that said reducer output shaft is keyed or connected by a fastener to said first coupling part (11).
10. Stirring device according to claim 8, wherein the transmission shaft is connected with the second coupling part (12) by a key connection or by a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179040.8U CN212215373U (en) | 2020-02-17 | 2020-02-17 | Transmission mechanism and stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020179040.8U CN212215373U (en) | 2020-02-17 | 2020-02-17 | Transmission mechanism and stirring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212215373U true CN212215373U (en) | 2020-12-25 |
Family
ID=73912608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020179040.8U Active CN212215373U (en) | 2020-02-17 | 2020-02-17 | Transmission mechanism and stirring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212215373U (en) |
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2020
- 2020-02-17 CN CN202020179040.8U patent/CN212215373U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Workshop 1, building 1, No. 458, Zhongmin Road, Maogang Town, Songjiang District, Shanghai, 201607 Patentee after: Shanghai Senyong Engineering Equipment Co.,Ltd. Address before: Workshop 1, building 1, No. 458, Zhongmin Road, Maogang Town, Songjiang District, Shanghai, 201607 Patentee before: Shanghai Senyong Engineering Equipment Co.,Ltd. |