CN218787176U - Device for improving connection rigidity of synchronous gear of roots pump - Google Patents
Device for improving connection rigidity of synchronous gear of roots pump Download PDFInfo
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- CN218787176U CN218787176U CN202222726322.7U CN202222726322U CN218787176U CN 218787176 U CN218787176 U CN 218787176U CN 202222726322 U CN202222726322 U CN 202222726322U CN 218787176 U CN218787176 U CN 218787176U
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- synchronous gear
- back flange
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Abstract
The utility model discloses an improve rigid device of lobe pump synchronous gear connection, driving shaft and driven shaft including parallel arrangement, be provided with initiative synchronizing gear on the driving shaft, be provided with on the driven shaft with initiative synchronizing gear engaged's driven synchronizing gear, the driven shaft have synchronizing gear back flange through flat key interference fit rigid connection, synchronizing gear back flange circumferencial direction is provided with screw hole and first pinhole, be furnished with bolt hole and second pinhole between driven synchronizing gear and the synchronizing gear back flange, synchronizing gear back flange is through first pinhole, second pinhole and driven synchronizing gear positioning connection, synchronizing gear back flange passes through screw hole, bolt hole and driven synchronizing gear fixed connection, through increasing synchronizing gear back flange, has realized rigid connection between messenger's driven synchronizing gear and the driven shaft.
Description
Technical Field
The utility model relates to a lobe pump field, concretely relates to improve device of lobe pump synchromesh gear connection rigidity.
Background
In the drive mechanism of roots pump, in order to guarantee that two roots impeller clearances do synchronous roll motion uniformly, the other end of axle has designed a pair of 1 drive gear, traditional design thinks this pair of gear can not all adopt fixed hard connection's such as interference plus plain key connection mode, otherwise just can not adjust the meshing clearance of two impellers during the assembly, so all adopt a gear hard link, the flexible connection mode of another gear soft connection, adopt the flexible connection mode of tapering bloated tight with the hole solid coupling on the transmission shaft, when adjusting the impeller clearance, loosen the adjusting screw of tapering bloated tight, the cooperation angle of rotary gear and axle, adjust suitable back, screw up the screw.
Although the structure is convenient to adjust, the limit torque which can be borne by the structure is limited, the roots pump belongs to a forced pump, instantaneous overload is easy to occur in the running process of the roots pump, once the overload occurs, the angle position relation of the two roots impellers is changed, the normal work cannot be caused, a professional maintainer is required to disassemble and maintain, and the time is delayed.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing an improve lobe pump synchromesh and connect rigid device.
In order to realize the technical purpose, the utility model discloses a scheme is: a device for improving connection rigidity of synchronous gears of a Roots pump comprises a driving shaft and a driven shaft which are arranged in parallel, wherein a driving synchronous gear is arranged on the driving shaft, a driven synchronous gear meshed with the driving synchronous gear is arranged on the driven shaft, the driven shaft is rigidly connected with a synchronous gear backrest flange through flat key interference fit, a threaded hole and a first pin hole are formed in the circumferential direction of the synchronous gear backrest flange, a bolt hole and a second pin hole are formed between the driven synchronous gear and the synchronous gear backrest flange in a matching mode, the synchronous gear backrest flange is connected with the driven synchronous gear in a positioning mode through the first pin hole and the second pin hole, and the synchronous gear backrest flange is fixedly connected with the driven synchronous gear through the threaded hole and the bolt hole.
Preferably: one end of the driving shaft is connected with an input end, the output end of the driving shaft is connected with a driving impeller, the driving shaft is rigidly connected with a driving synchronous gear through interference fit of a flat key, and a first bearing and a second bearing are arranged on two sides of the driving synchronous gear.
Preferably: the output end of the driven shaft is connected with a driven impeller matched with the driving impeller, and a first bearing and a second bearing are arranged on two sides of the driven synchronous gear and the synchronous gear backrest flange.
Preferably: the first pin hole and the second pin hole are synchronously arranged to be a cylindrical pin hole or a conical pin hole.
Preferably: the first pin hole and the second pin hole are matched with the driven synchronous gear and the synchronous gear backrest flange which are fixedly connected after the meshing clearance between the driving impeller and the driven impeller is assembled and debugged.
The utility model has the advantages that:
1. through increasing synchronous gear back flange, pass through parallel key interference fit rigid connection driven shaft with synchronous gear back flange, loosen fastening bolt and adjust the positive and negative meshing clearance of initiative impeller and driven impeller, tighten fastening bolt after adjusting suitable, join in marriage and make first pinhole and second pinhole, insert the round pin hub connection, rigid connection has been realized between messenger's driven synchronous gear and the driven shaft, initiative synchronous gear also passes through parallel key interference fit rigid connection driving shaft simultaneously, the bearing capacity has been improved, it adopts the tapering bloated tight connection to cause the bearing torque little to have overcome traditional structure, unreliable phenomenon, still connect the same convenient regulation with bloating.
2. When the impeller needs to be maintained and replaced, only the pin shaft on the first pin hole arranged on the synchronous gear backrest flange needs to be detached, and the pin hole is reconfigured by replacing an angle position, so that the phenomenon that the production has to be stopped for maintenance after overload is avoided, the time is saved, and the efficiency is improved.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic view of the structure of the synchronous gear backrest flange of the present invention;
fig. 3 is a left side view of the structure of the synchronous gear back flange of the present invention;
fig. 4 is a sectional view of the structure of the synchronous gear back flange of the present invention.
In the figure: 1. the synchronous gear type driving impeller comprises a driving shaft 2, a driven shaft 3, a driving synchronous gear 4, a driven synchronous gear 5, a synchronous gear backrest flange 6, a threaded hole 7, a first pin hole 8, a bolt hole 9, a second pin hole 10, an output end 11, a driving impeller 12, a first bearing 13, a second bearing 14 and a driven impeller.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the embodiment of the present invention is a device for improving the connection rigidity of a roots pump synchronous gear, comprising a driving shaft 1 and a driven shaft 2 arranged in parallel, wherein the driving shaft 1 is provided with a driving synchronous gear 3, the driven shaft 2 is provided with a driven synchronous gear 4 engaged with the driving synchronous gear 3, the driven shaft 2 is rigidly connected with a synchronous gear back flange 5 through a flat key interference fit, the synchronous gear back flange 5 is provided with a threaded hole 6 and a first pin hole 7 in the circumferential direction, a bolt hole 8 and a second pin hole 9 are arranged between the driven synchronous gear and the synchronous gear back flange, the synchronous gear back flange 5 is in positioning connection with the driven synchronous gear 4 through the first pin hole 7 and the second pin hole 9, the synchronous gear back flange 5 is fixedly connected with the driven synchronous gear 4 through the threaded hole 6 and the driven synchronous gear 4, one end of the driving shaft 1 is connected with an input end 10, the output end of the driving shaft 1 is connected with a driving impeller 11, the driving impeller 1) is connected with the driving synchronous gear 3 through a flat key interference fit, two sides of the synchronous gear 3 and the driven impeller 11 are provided with a back flange 12, the back flange 14, the back flange is connected with a back flange 5 through a back flange 14, the back flange 5 and a back flange 14, the back flange 14 are fastened with a back flange 14, the driven impeller through a back flange 14, the inserted pin shaft is positioned and connected, so that rigid connection is realized between the driven synchronous gear 4 and the driven shaft 2, meanwhile, the driving synchronous gear 3 is also rigidly connected with the driving shaft 1 through flat key interference fit, the bearing capacity is improved, the phenomena of small bearing torque and unreliability caused by taper expansion connection adopted by the traditional structure are overcome, and the adjustment is also convenient as expansion connection.
The first pin hole 7 and the second pin hole 9 are synchronously arranged to be cylindrical pin holes or conical pin holes, when the impeller needs to be maintained and replaced, only the pin shaft on the first pin hole 7 arranged on the synchronous gear backrest flange needs to be detached, and an angle position is changed to be remade into the pin holes, so that the phenomenon that the impeller has to be stopped for maintenance after overload is avoided, the time is saved, and the efficiency is improved.
The first pin hole 7 and the second pin hole 9 are matched with the first pin hole 7 and the second pin hole 9 which are used for keeping the driven synchronous gear 4 and the synchronous gear backrest flange 5 to be tightly connected after the meshing clearance between the driving impeller 12 and the driven impeller 14 is assembled and adjusted, so that the meshing clearance between the driving impeller 12 and the driven impeller 14 is ensured to be proper.
The working principle is as follows: when the roots pump is assembled, fastening bolts of the driven synchronous gear 4 and the synchronous gear back flange 5 are loosened, the positive and negative meshing gaps of the driving impeller 11 and the driven impeller 14 are made to be uniform by repeated adjustment, and then the fastening bolts between the driven synchronous gear 14 and the synchronous gear back flange 5 are tightened;
the impeller of the Roots pump is disassembled, the driven synchronous gear 4, the synchronous gear backrest flange 5 and the driven shaft 1 are connected, the three components are taken from the Roots pump, the position relation between the synchronous gear backrest flange 5 and the driven synchronous gear 4 is kept unchanged and matched with the first pin hole 7 and the second pin hole 9, and finally the synchronous gear backrest flange 5 is connected with the driven synchronous gear 4 through the pin shaft in a positioning mode.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (5)
1. The utility model provides an improve roots pump synchromesh and connect rigidity's device, includes parallel arrangement's driving shaft (1) and driven shaft (2), be provided with initiative synchronizing gear (3) on driving shaft (1), be provided with driven synchronizing gear (4) with initiative synchronizing gear (3) meshing on driven shaft (2), its characterized in that: driven shaft (2) have synchronizing gear back flange (5) through parallel key interference fit rigid connection, synchronizing gear back flange (5) circumferencial direction is provided with screw hole (6) and first pinhole (7), be furnished with bolt hole (8) and second pinhole (9) between driven synchronizing gear and the synchronizing gear back flange, synchronizing gear back flange (5) are through first pinhole (7), second pinhole (9) and driven synchronizing gear (4) location connection, synchronizing gear back flange (5) are through screw hole (6), bolt hole (8) and driven synchronizing gear (4) fixed connection.
2. The device for improving the connection rigidity of the synchronous gears of the roots pump as claimed in claim 1, wherein: the driving shaft (1) one end is connected with input (10), driving shaft (1) output is connected with initiative impeller (11), driving shaft (1) is gone up and is had initiative synchronizing gear (3) through flat key interference fit rigid connection, initiative synchronizing gear (3) both sides are provided with first bearing (12) and second bearing (13).
3. The device for improving the connection rigidity of the synchronous gear of the roots pump as claimed in claim 1, wherein: the output end of the driven shaft (2) is connected with a driven impeller (14) matched with the driving impeller (11), and a first bearing (12) and a second bearing (13) are arranged on two sides of the driven synchronous gear (4) and the synchronous gear backrest flange (5).
4. The device for improving the connection rigidity of the synchronous gears of the roots pump as claimed in claim 1, wherein: the first pin hole (7) and the second pin hole (9) are synchronously arranged to be cylindrical pin holes or conical pin holes.
5. The device for improving the connection rigidity of the synchronous gears of the roots pump as claimed in claim 1, wherein: the first pin hole (7) and the second pin hole (9) are matched with the first pin hole (7) and the second pin hole (9) which are used for keeping the driven synchronous gear (4) and the synchronous gear backrest flange (5) to be tightly connected after the driving impeller (11) and the driven impeller (14) are assembled and debugged to form a meshing gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222726322.7U CN218787176U (en) | 2022-10-17 | 2022-10-17 | Device for improving connection rigidity of synchronous gear of roots pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222726322.7U CN218787176U (en) | 2022-10-17 | 2022-10-17 | Device for improving connection rigidity of synchronous gear of roots pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218787176U true CN218787176U (en) | 2023-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222726322.7U Active CN218787176U (en) | 2022-10-17 | 2022-10-17 | Device for improving connection rigidity of synchronous gear of roots pump |
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| CN (1) | CN218787176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116728148A (en) * | 2023-08-02 | 2023-09-12 | 惠州市鹏达鑫表业有限公司 | Automatic change digit control machine tool |
-
2022
- 2022-10-17 CN CN202222726322.7U patent/CN218787176U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116728148A (en) * | 2023-08-02 | 2023-09-12 | 惠州市鹏达鑫表业有限公司 | Automatic change digit control machine tool |
| CN116728148B (en) * | 2023-08-02 | 2024-05-31 | 惠州市鹏达鑫表业有限公司 | Automatic change digit control machine tool |
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