CN209838748U - Split type pump shaft - Google Patents
Split type pump shaft Download PDFInfo
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- CN209838748U CN209838748U CN201920247048.0U CN201920247048U CN209838748U CN 209838748 U CN209838748 U CN 209838748U CN 201920247048 U CN201920247048 U CN 201920247048U CN 209838748 U CN209838748 U CN 209838748U
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- pump shaft
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- transmission sleeve
- hole
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Abstract
The utility model relates to the technical field of direct-coupled water pumps, in particular to a split type pump shaft, which comprises a transmission sleeve, a pump shaft flange and a pump shaft body; the pipe wall of the transmission sleeve is provided with a plurality of crankshaft fixing threaded holes, and the bottom surface of the transmission sleeve is provided with a plurality of threaded blind holes; a pump shaft connecting hole is formed in the center of the pump shaft flange, and a plurality of flange holes are formed in the pump shaft flange and positioned on the outer side of the pump shaft connecting hole; and one end of the pump shaft body, which is far away from the key groove, is provided with a flange connecting part. The utility model discloses an unique split type pump shaft, through the mode of high strength screw hookup, with the epaxial transmission sleeve hookup of motor, form a detachable, firm transmission part, can select different pump shaft materials according to the different operating mode of water pump, the corrosion resistance that both can guarantee the medium can be fine again the proof strength, has greatly improved supporting ability, has dimension guarantor efficiency, and simple structure easy dismounting for the application range of water pump obtains very big extension.
Description
Technical Field
The utility model relates to an associated mode water pump technical field, concretely relates to split type pump shaft.
Background
The existing direct-connected water pump mainly has two connection modes between a pump shaft and a motor shaft. One is to process an inner hole at one end of the pump shaft, sleeve the shaft head of the motor into the inner hole, transmit torque through key connection, and the other is to transmit torque by clamping the pump shaft and the motor shaft through a coupler.
In the first prior art, if the pump shaft inner hole and the motor shaft adopt clearance fit, the disassembly and assembly are easy, but the reliability is not good. The pump is easy to generate impact and vibration in the operation process, the service life is influenced, and noise pollution is caused to the environment; if the shaft hole of the pump shaft and the motor shaft are in transition fit or interference fit, the connection is reliable, impact vibration is not easy to generate during operation, the assembly difficulty is high, and the maintenance and disassembly difficulty is high.
In the second prior art, the pump shaft and the motor shaft are clamped in a butt joint mode through two half couplers, and the two half couplers are clamped through screws. In the scheme, the screwing sequence and the torque of each screw are required to be adjusted to ensure the coaxiality of the pump shaft and the motor shaft, the assembly is time-consuming, and the processing technology of the coupler is complex and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the split pump shaft is simple in structure, convenient to disassemble and assemble and wide in application range.
In order to solve the technical problem, the utility model discloses a technical scheme be: a split type pump shaft comprises a transmission sleeve, a pump shaft flange and a pump shaft body;
the transmission sleeve is in a hollow tubular shape, a plurality of crankshaft fixing threaded holes are formed in the wall of the transmission sleeve, the crankshaft fixing threaded holes are uniformly distributed on the same straight line along the axial direction of the transmission sleeve, a plurality of threaded blind holes are formed in the bottom surface of the transmission sleeve, and the threaded blind holes are uniformly distributed on the bottom surface of the transmission sleeve in the circumferential direction;
the pump shaft flange is annular, a pump shaft connecting hole is formed in the center of the pump shaft flange, a plurality of flange holes are formed in the pump shaft flange and located on the outer side of the pump shaft connecting hole, the flange holes are evenly distributed along the circumferential direction of the pump shaft flange, the number of the flange holes is equal to that of the threaded blind holes, and the positions of the flange holes correspond to the positions of the threaded blind holes one to one;
the pump shaft is characterized in that one end, away from the key groove, of the pump shaft body is provided with a flange connecting portion, the diameter of the flange connecting portion is equal to that of the pump shaft connecting hole, and the flange connecting portion is fixedly connected with a pump shaft flange through the pump shaft connecting hole.
The flange connecting part and the flange are fixedly connected through welding.
The pump shaft connecting hole comprises a front section hole and a rear section hole, the diameter of the front section is equal to that of the flange connecting part, the cross section of the rear end hole is trapezoidal, and the end, with a smaller opening, of the rear section hole is communicated with the front section hole.
And a chamfer is arranged on the flange connecting part.
The length of the flange connecting part is equal to that of the pump shaft connecting hole.
Wherein, the maximum diameter of the pump shaft flange is equal to the maximum diameter of the transmission sleeve.
The utility model has the advantages that: adopt unique split type pump shaft, through the mode of high strength screw hookup, with the hookup of the epaxial driving sleeve of motor, form a detachable, firm drive disk assembly, like this can be according to the different axle construction size in both sides of components of a whole that can function independently rationally chose for use the efficient, the processing mode of high accuracy, different pump shaft materials can also be selected according to the different operating mode of water pump simultaneously, the corrosion resistance that both can guarantee the medium but also can be fine assurance intensity, the supporting ability has greatly been improved, the maintenance efficiency, and simple structure easy dismounting, make the application range of water pump obtain very big extension.
Drawings
Fig. 1 is a schematic structural view of a split pump shaft according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a driving sleeve of a split pump shaft according to an embodiment of the present invention;
FIG. 3 is a front view of a driving sleeve of a split pump shaft according to an embodiment of the present invention;
FIG. 4 is a sectional view of a pump shaft flange of a split pump shaft according to an embodiment of the present invention;
FIG. 5 is a front view of a pump shaft flange of a split pump shaft according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a pump shaft body of the split pump shaft according to the embodiment of the present invention;
fig. 7 is a schematic view showing the connection between the pump shaft body and the pump shaft flange of the split pump shaft according to the embodiment of the present invention;
description of reference numerals:
1. a transmission sleeve; 11. a crankshaft fixing threaded hole; 12. a threaded blind hole;
2. a pump shaft flange; 21. a pump shaft connecting hole; 22. a flange hole;
3. a pump shaft body; 31. a flange connection;
4. a motor shaft.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: one end of the pump shaft body is provided with a flange and a transmission sleeve, and all the parts are connected through screws.
Referring to fig. 1 to 7, the split pump shaft provided by the present invention includes a transmission sleeve 1, a pump shaft flange 2 and a pump shaft body 3;
the transmission sleeve 1 is in a hollow tubular shape, a plurality of crankshaft fixing threaded holes 11 are formed in the wall of the transmission sleeve 1, the crankshaft fixing threaded holes 11 are uniformly distributed on the same straight line along the axial direction of the transmission sleeve 1, a plurality of threaded blind holes 12 are formed in the bottom surface of the transmission sleeve 1, and the threaded blind holes 12 are uniformly distributed on the bottom surface of the transmission sleeve 1 in the circumferential direction;
the pump shaft flange 2 is annular, a pump shaft connecting hole 21 is formed in the center of the pump shaft flange 2, a plurality of flange holes 22 are formed in the pump shaft flange 2 and located on the outer side of the pump shaft connecting hole 21, the plurality of flange holes 22 are uniformly distributed along the circumferential direction of the pump shaft flange, the number of the flange holes 22 is equal to that of the threaded blind holes 12, and the positions of the plurality of flange holes 22 correspond to the positions of the threaded blind holes 12 one to one;
one end, far away from the keyway, of the pump shaft body 3 is provided with a flange connecting portion 31, the diameter of the flange connecting portion 31 is equal to that of the pump shaft connecting hole 21, and the flange connecting portion 31 is fixedly connected with the pump shaft flange 2 through the pump shaft connecting hole 21.
The working principle of the split pump shaft is as follows: during installation, in installing the liquid pump with pump shaft body 3, pump shaft flange 2 passes through pump shaft connecting hole 21 and the flange connection portion 31 fixed connection of pump shaft body 3 one end, threaded blind hole 12 on the driving sleeve 1 and the flange hole 22 one-to-one on the pump shaft flange 2, the screw is in proper order in flange hole 22 and threaded blind hole 12 with driving sleeve 1 and pump shaft flange 2 fixed connection, then in emboliaing the inner chamber of driving sleeve 1 with motor shaft 4, a plurality of screws are twisted into spindle fixed screw hole 11 and are fixed in motor shaft 4 and driving sleeve 1 integratively.
As can be seen from the above description, the utility model has the advantages that: adopt unique split type pump shaft, through the mode of high strength screw hookup, with the hookup of the epaxial driving sleeve of motor, form a detachable, firm drive disk assembly, like this can be according to the different axle construction size in both sides of components of a whole that can function independently rationally chose for use the efficient, the processing mode of high accuracy, different pump shaft materials can also be selected according to the different operating mode of water pump simultaneously, the corrosion resistance that both can guarantee the medium but also can be fine assurance intensity, the supporting ability has greatly been improved, the maintenance efficiency, and simple structure easy dismounting, make the application range of water pump obtain very big extension.
Further, the flange connecting portion 31 is fixedly connected with the flange by welding.
According to the above description, the pump shaft body and the pump shaft flange are fixedly connected in a welding manner, so that the connection strength required by the operation of the split type pump shaft can be ensured.
Further, the pump shaft connecting hole 21 includes a front section hole and a rear section hole, the diameter of the front section is equal to the diameter of the flange connecting portion 31, the cross-sectional shape of the rear end hole is trapezoidal, and the end of the rear section hole with a smaller opening is communicated with the front section hole.
From the above description, the sectional arrangement of the pump shaft connecting hole can prevent the connecting part of the pump shaft body and the pump shaft flange from protruding after welding, thereby affecting the connection between the transmission sleeve and the crankshaft.
Further, a chamfer is provided on the flange connecting portion 31.
As can be seen from the above description, sufficient expansion space can be provided for the welding between the flange connection and the pump shaft flange by providing the chamfer.
Further, the length of the flange connection portion 31 is equal to the length of the pump shaft connection hole 21.
The flange connecting part is not too long after the pump shaft body is connected with the pump shaft flange, so that the installation between the transmission sleeve and the motor shaft is not influenced.
Further, the maximum diameter of the pump shaft flange 2 is equal to the maximum diameter of the transmission sleeve 1.
The first embodiment is as follows:
a split type pump shaft comprises a transmission sleeve 1, a pump shaft flange 2 and a pump shaft body 3;
the transmission sleeve 1 is in a hollow tubular shape, a plurality of crankshaft fixing threaded holes 11 are formed in the wall of the transmission sleeve 1, the crankshaft fixing threaded holes 11 are uniformly distributed on the same straight line along the axial direction of the transmission sleeve 1, a plurality of threaded blind holes 12 are formed in the bottom surface of the transmission sleeve 1, and the threaded blind holes 12 are uniformly distributed on the bottom surface of the transmission sleeve 1 in the circumferential direction;
the pump shaft flange 2 is annular, a pump shaft connecting hole 21 is formed in the center of the pump shaft flange 2, a plurality of flange holes 22 are formed in the pump shaft flange 2 and located on the outer side of the pump shaft connecting hole 21, the plurality of flange holes 22 are uniformly distributed along the circumferential direction of the pump shaft flange, the number of the flange holes 22 is equal to that of the threaded blind holes 12, and the positions of the plurality of flange holes 22 correspond to the positions of the threaded blind holes 12 one to one;
a flange connecting part 31 is arranged at one end, far away from the key groove, of the pump shaft body 3, the diameter of the flange connecting part 31 is equal to that of the pump shaft connecting hole 21, and the flange connecting part 31 is fixedly connected with the pump shaft flange 2 through the pump shaft connecting hole 21;
the flange connecting part 31 is fixedly connected with the flange through welding;
the pump shaft connecting hole 21 comprises a front section hole and a rear section hole, the diameter of the front section is equal to that of the flange connecting part 31, the cross section of the rear end hole is trapezoidal, and the end with a smaller opening of the rear section hole is communicated with the front section hole;
a chamfer is arranged on the flange connecting part 31;
the length of the flange connecting part 31 is equal to that of the pump shaft connecting hole 21;
the maximum diameter of the pump shaft flange 2 is equal to the maximum diameter of the transmission sleeve 1.
To sum up, the utility model provides a split type pump shaft adopts unique split type pump shaft, through the mode of high strength screw hookup, with the driving sleeve hookup on the motor shaft, form a detachable, firm transmission part, can be like this according to the reasonable processing mode of selecting for use efficient, high accuracy of the different axle construction size in both sides of components of a whole that can function independently, can also select different pump shaft materials according to the different operating modes of water pump simultaneously, can both guarantee the corrosion resistance of medium and can be fine assurance intensity, greatly improved supporting ability, the maintenance efficiency, and simple structure easy dismounting, make the application range of water pump obtain very big extension;
the pump shaft body and the pump shaft flange are fixedly connected in a welding mode, so that the connection strength required by the operation of the split pump shaft can be ensured;
the connecting part of the pump shaft body and the pump shaft flange after welding is not protruded due to the sectional arrangement of the pump shaft connecting holes, so that the connection between the transmission sleeve and the crankshaft is influenced.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. A split type pump shaft is characterized by comprising a transmission sleeve, a pump shaft flange and a pump shaft body;
the transmission sleeve is in a hollow tubular shape, a plurality of crankshaft fixing threaded holes are formed in the wall of the transmission sleeve, the crankshaft fixing threaded holes are uniformly distributed on the same straight line along the axial direction of the transmission sleeve, a plurality of threaded blind holes are formed in the bottom surface of the transmission sleeve, and the threaded blind holes are uniformly distributed on the bottom surface of the transmission sleeve in the circumferential direction;
the pump shaft flange is annular, a pump shaft connecting hole is formed in the center of the pump shaft flange, a plurality of flange holes are formed in the pump shaft flange and located on the outer side of the pump shaft connecting hole, the flange holes are evenly distributed along the circumferential direction of the pump shaft flange, the number of the flange holes is equal to that of the threaded blind holes, and the positions of the flange holes correspond to the positions of the threaded blind holes one to one;
the pump shaft is characterized in that one end, away from the key groove, of the pump shaft body is provided with a flange connecting portion, the diameter of the flange connecting portion is equal to that of the pump shaft connecting hole, and the flange connecting portion is fixedly connected with a pump shaft flange through the pump shaft connecting hole.
2. The split pump shaft of claim 1, wherein the flange connection is fixedly connected to the flange by welding.
3. The split pump shaft according to claim 1, wherein the pump shaft connection hole includes a front section hole and a rear section hole, the diameter of the front section is equal to the diameter of the flange connection portion, the cross-sectional shape of the rear section hole is trapezoidal, and the smaller end of the rear section hole is communicated with the front section hole.
4. The split pump shaft of claim 1, wherein the flange connection is chamfered.
5. The split pump shaft of claim 1, wherein the length of the flange connection is equal to the length of the pump shaft connection hole.
6. The split pump shaft of claim 1, wherein a maximum diameter of the pump shaft flange is equal to a maximum diameter of the drive sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920247048.0U CN209838748U (en) | 2019-02-27 | 2019-02-27 | Split type pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920247048.0U CN209838748U (en) | 2019-02-27 | 2019-02-27 | Split type pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209838748U true CN209838748U (en) | 2019-12-24 |
Family
ID=68904974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920247048.0U Active CN209838748U (en) | 2019-02-27 | 2019-02-27 | Split type pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209838748U (en) |
-
2019
- 2019-02-27 CN CN201920247048.0U patent/CN209838748U/en active Active
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