CN220595174U - Assembly structure of underwater motor and duct - Google Patents
Assembly structure of underwater motor and duct Download PDFInfo
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- CN220595174U CN220595174U CN202322293022.9U CN202322293022U CN220595174U CN 220595174 U CN220595174 U CN 220595174U CN 202322293022 U CN202322293022 U CN 202322293022U CN 220595174 U CN220595174 U CN 220595174U
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- connecting rod
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- motor
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- 230000008719 thickening Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to an assembly structure of an underwater motor and a duct, which belongs to the field of underwater propellers, and comprises a driving motor, a duct shell and a connecting rod, wherein the connecting rod is used for connecting the driving motor and the duct shell, one end of the connecting rod is inserted into the duct shell, and the other end of the connecting rod is in threaded fit with the driving motor; the connecting rod is close to the flange that has set firmly in the position department of driving motor, and the platform has been seted up to driving motor correspondence flange position, and platform and flange mutually support. The present application has the effect of reducing the change in shape of the duct housing, maintaining a streamlined design of the duct housing.
Description
Technical Field
The application relates to the field of underwater propellers, in particular to an assembly structure of an underwater motor and a duct.
Background
The underwater propeller is used in underwater detection and underwater navigation devices to provide power for underwater movement of the underwater propeller, so that the underwater propeller with reliable quality is provided with great significance for the development of the underwater detection and underwater navigation devices.
Generally, the underwater propeller comprises a driving motor and a duct shell, wherein the duct shell is fixedly arranged on the outer side of the driving motor and is arranged at a position close to an output shaft of the driving motor. The output shaft of the driving motor extends to the inside of the duct shell and is fixedly connected with a propeller. When the device is used, the output shaft of the driving motor drives the propeller to rotate so as to generate thrust to drive the device to move underwater. Under normal conditions, a plurality of connecting rods are uniformly arranged along the circumferential direction of the duct shell, and the end parts of the connecting rods penetrate from the outside of the duct shell to the inside and are in threaded connection with the outer wall of the driving motor.
Aiming at the related technology, when the connecting rod passes through the screw thread of the duct shell to be connected with the outer wall of the motor, the depth of the end part of the connecting rod screwed into the outer wall of the motor is inconvenient to control, so that the position of the duct shell, at which the connecting rod is arranged, is easy to cause serious sinking in the direction close to the driving motor, the shape of the duct shell is changed, and the streamline design of the duct shell is damaged.
Disclosure of Invention
In order to reduce the change of the shape of the duct housing and maintain the streamline design of the duct housing, the application provides an assembly structure of an underwater motor and a duct.
The application provides an assembly structure of motor and duct under water adopts following technical scheme:
the assembly structure of the underwater motor and the duct comprises a first connecting part arranged on a driving motor, a second connecting part arranged on a duct shell and a connecting rod, wherein the connecting rod is used for connecting the driving motor and the duct shell, one end of the connecting rod is inserted into the duct shell, and the other end of the connecting rod is in threaded fit with the driving motor; the connecting rod is close to the flange that has set firmly in the position department of driving motor, and the platform has been seted up to driving motor correspondence flange position, and platform and flange mutually support.
Through adopting above-mentioned technical scheme, when making driving motor and duct shell fixed relatively through the connecting rod, the terminal surface of flange and the diapire mutual butt of place the platform to can be when installing the connecting rod between duct shell and driving motor, can restrict the degree of depth that the connecting rod tip got into driving motor outer wall, reduce the serious sunken of duct shell because with the connecting rod screw in too deeply and lead to. Reducing the change of the shape of the duct housing and maintaining the streamline design of the duct housing.
Optionally, a counter bore is formed at a position of the second connecting portion corresponding to the connecting rod, and an end portion of the connecting rod is arranged in the counter bore.
By adopting the technical scheme, the end part of the connecting rod is conveniently accommodated in the countersink, and the streamline design of the duct shell is kept.
Optionally, a thickening end is arranged at the position of the connecting rod corresponding to the countersink, and the thickening end is matched with the countersink.
By adopting the technical scheme, on one hand, the shape of the thickened end is matched with the shape of the countersink, so that the contact area between the thickened end and the countersink can be increased, and the connection between the thickened end and the countersink is more stable; on the other hand, the thickened end and the countersunk hole are mutually clamped so as to limit the depth of the thickened end entering the duct shell.
Optionally, the connecting rod is radially inclined between the duct housing and the driving motor.
By adopting the technical scheme, the torsion resistance of the connecting rod can be increased. In general, all connecting rods are arranged on the same plane, namely, the connecting rods are arranged along the shortest distance between the driving motor and the duct shell, and when the duct shell has a tendency of up-down overturning due to water flow impact or other external force, the torsion resistance provided by the connecting rods is small, so that the duct shell can be easily overturned up and down. The connecting rod is radially inclined between the duct shell and the driving motor, so that the duct shell is required to turn up and down, the force for elongating or shortening the connecting rod is difficult to realize, the torsion resistance of the connecting rod can be improved, the duct shell and the driving motor are connected more stably through the connecting rod, and the capability of resisting the up-down turning of the duct shell is improved.
Optionally, the length from the upper flange to the thickened end of the connecting rod is smaller than the length of a straight line between one end of the counter bore close to the placement platform and the bottom wall of the placement platform.
By adopting the technical scheme, when the connecting rod is preliminarily screwed into the driving motor, a certain gap is reserved between the end face of the flange and the bottom wall of the placement platform, and the duct shell is not under the action of the tensile force of the connecting rod; then, twist the connecting rod to driving motor in again, make flange terminal surface and place the platform diapire butt, the duct shell receives the pulling force effect of connecting rod this moment, makes the duct shell have the trend of resisting connecting rod pulling force to deviating from driving motor's direction motion to take up the connecting rod between duct shell and driving motor, make the connecting rod more stable connection between duct shell and driving motor.
Optionally, be provided with connecting portion between flange and the bodiness end on the connecting rod, flange and connecting portion junction pass through the pitch arc and gently connect.
By adopting the technical scheme, the strength of the joint of the connecting part and the flange can be enhanced.
Optionally, the connection part of the thickening end and the connecting part is gently connected through an arc.
By adopting the technical scheme, the strength of the joint of the thickening end and the connecting part can be enhanced.
Optionally, a hexagonal concave hole is formed in the middle of the thickening end.
By adopting the technical scheme, on one hand, the connecting rod is convenient to rotate so as to be connected between the duct shell and the driving motor; on the other hand, the contact area between the wrench and the concave hole can be increased by the inner hexagonal concave hole, so that the rotation is more labor-saving.
Optionally, the connecting rods are provided with 4 and evenly distributed around the axial direction of the duct housing.
By adopting the technical scheme, the method not only can meet enough connection strength, but also can save materials, save cost and reduce production difficulty.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a schematic structural view of the connecting rod in the embodiment.
Fig. 3 is an enlarged view of a portion a in fig. 1.
Fig. 4 is an enlarged view of a portion B in fig. 1.
Reference numerals illustrate: 1. a driving motor; 10. a first connection portion; 11. a threaded hole; 12. placing a platform; 2. a duct housing; 20. a second connecting portion; 21. a countersunk hole; 3. a connecting rod; 31. thickening the end; 311. a hexagonal concave hole; 32. a connection part; 33. a flange; 34. a threaded portion.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses an assembly structure of an underwater motor and a duct. Referring to fig. 1, an assembly structure of an underwater motor and a duct includes a first connection portion 10 disposed on a driving motor 1, a second connection portion 20 disposed on a duct housing 2, and a connection rod 3, wherein the connection rod 3 is used for connecting the driving motor 1 and the duct housing 2.
Referring to fig. 1, the connecting rods 3 are uniformly distributed along the circumference of the duct housing 2, the connecting rods 3 can be set into a plurality of connecting rods, and 4 connecting rods are optimally arranged, so that not only can sufficient connection strength be met, but also materials and cost can be saved, and the production difficulty is reduced, and in the figure, the 4 connecting rods 3 are used as an example for illustration. The connecting rod 3 is radially and obliquely arranged between the duct housing 2 and the driving motor 1. In general, the connecting rods 3 are disposed on the same plane, that is, the connecting rods 3 are disposed along the shortest distance between the driving motor 1 and the duct housing 2, and when the duct housing 2 is subject to water flow impact or other external forces and has a tendency of turning up and down, the torsion resistance provided by the connecting rods 3 is small, so that the duct housing 2 is easy to turn up and down. In this embodiment, the connecting rod 3 is radially inclined between the duct housing 2 and the driving motor 1, and the duct housing 2 is required to be turned up and down, so that the force of elongating the connecting rod 3 or shortening the connecting rod 3 is difficult to realize, so that the torsion resistance of the connecting rod 3 can be improved, the duct housing 2 and the driving motor 1 are connected more stably through the connecting rod 3, and the capability of resisting the up-and-down turning of the duct housing 2 is increased.
Referring to fig. 2, a thickening end 31, a connecting portion 32, a flange 33, and a screw portion 34 are sequentially provided along the length direction of the connecting rod 3, and adjacent members are fixedly connected to each other.
Referring to fig. 3, a screw hole 11 is formed in the driving motor 1 at a position corresponding to the connecting rod 3, and the screw hole 11 is screw-engaged with the screw portion 34. The end of the outer wall of the drive motor 1 corresponding to the threaded hole 11 is provided with a placement platform 12, and the shape of the placement platform 12 is matched with that of the flange 33. When the drive motor 1 and the duct housing 2 are relatively fixed by the connecting rod 3, the end surfaces of the flanges 33 abut against the bottom wall of the placement platform 12, so that the depth of the end portions of the connecting rod 3 into the outer wall of the drive motor 1 can be restricted when the connecting rod 3 is installed between the duct housing 2 and the drive motor 1, and the recess of the duct housing 2 due to the screwing of the connecting rod 3 too deeply can be reduced. Reducing the change in shape of the bypass casing 2 and maintaining the streamlined design of the bypass casing 2.
Referring to fig. 1 and 3, the connection between the flange 33 and the connection portion 32 is smoothly connected by an arc, so that the strength of the connection portion 32 and the flange 33 can be enhanced.
Referring to fig. 1 and 3, the connection portion 32 is provided in the shape of a strut, and the length of the connection portion 32 is shorter than the length of a straight line between the inner wall of the duct housing 2 and the bottom wall of the placement platform 12. When the connecting rod 3 is primarily screwed into the driving motor 1, a certain gap is reserved between the end face of the flange 33 and the bottom wall of the placing platform 12, and the duct shell 2 is not under the tensile force of the connecting rod 3; then, the connecting rod 3 is screwed into the driving motor 1 again, the end face of the flange 33 is abutted against the bottom wall of the placement platform 12, and at the moment, the duct housing 2 is acted by the tensile force of the connecting rod 3, so that the duct housing 2 has a trend of moving in the direction deviating from the driving motor 1 against the tensile force of the connecting rod 3, the connecting rod 3 is tensioned between the duct housing 2 and the driving motor 1, and the connecting rod 3 is connected between the duct housing 2 and the driving motor 1 more stably.
Referring to fig. 2 and 4, a counter bore 21 is formed in the duct housing 2 at a position corresponding to the thickened end 31, the end of the thickened end 31 is accommodated in the counter bore 21, and the thickened end 31 is inserted into the counter bore 21 to maintain the streamline design of the duct housing 2. The middle part of the thickening end 31 is provided with a hexagonal concave hole 311, on one hand, the connecting rod 3 is convenient to rotate so as to connect the connecting rod 3 between the duct shell 2 and the driving motor 1; on the other hand, the contact area between the wrench and the concave hole can be increased by the inner hexagonal concave hole 311, so that the rotation is more labor-saving.
Referring to fig. 2 and 4, the section diameter of the thickened end 31 is larger than the section diameter of the connecting portion 32, on the one hand, when the connecting rod 3 is installed between the duct housing 2 and the driving motor 1, the threaded portion 34 needs to pass through the duct housing 2 and the driving motor 1 in sequence and finally be in threaded fit with the threaded hole 11, so that the section diameter of the counter bore 21 is large enough to facilitate the flange 33 to pass through the duct housing 2, and thus the end portion of the connecting rod 3 is thickened to form the thickened end 31, so that the section diameter of the counter bore 21 can be adapted, the contact area between the inner wall of the counter bore 21 and the connecting rod 3 is increased, and the connecting rod 3 is more stably connected in the counter bore 21. On the other hand, the thickened end 31 and the counter bore 21 are engaged with each other to limit the depth of the thickened end 31 into the duct housing 2.
Referring to fig. 4, the junction of the thickened end 31 and the connecting portion 32 is gently connected by an arc, so that the strength of the junction of the connecting portion 32 and the thickened end 31 can be enhanced.
The implementation principle of the assembly structure of the underwater motor and the duct in the embodiment of the application is as follows:
when the duct housing 2 and the driving motor 1 are assembled, the threaded part 34 of each connecting rod 3 sequentially passes through the counter bore 21 on the duct housing 2 and enters the threaded hole 11 on the outer wall of the driving motor 1 to be in threaded fit with the inner wall of the threaded hole 11.
When the connecting rod 3 is primarily screwed into the driving motor 1, a certain gap is reserved between the end face of the flange 33 and the bottom wall of the placing platform 12, and the duct shell 2 is not under the tensile force of the connecting rod 3; then, the connecting rod 3 is screwed into the driving motor 1 again, the end face of the flange 33 is abutted against the bottom wall of the placement platform 12, and at the moment, the duct housing 2 is acted by the tensile force of the connecting rod 3, so that the duct housing 2 has a trend of moving in the direction deviating from the driving motor 1 against the tensile force of the connecting rod 3, the connecting rod 3 is tensioned between the duct housing 2 and the driving motor 1, and the connecting rod 3 is connected between the duct housing 2 and the driving motor 1 more stably.
In addition, the end surfaces of the flanges 33 are abutted against the bottom wall of the placement platform 12, so that when the connecting rod 3 is mounted between the duct housing 2 and the drive motor 1, the depth of the end of the connecting rod 3 into the outer wall of the drive motor 1 can be limited, and the recess of the duct housing 2 caused by screwing the connecting rod 3 too deeply can be reduced. Reducing the change in shape of the bypass casing 2 and maintaining the streamlined design of the bypass casing 2.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. An assembly structure of motor and duct under water, its characterized in that:
the novel bypass type air conditioner comprises a first connecting part (10) arranged on a driving motor (1), a second connecting part (20) arranged on a bypass shell (2) and a connecting rod (3), wherein the connecting rod (3) is used for connecting the driving motor (1) and the bypass shell (2), one end of the connecting rod (3) is inserted into the bypass shell (2), and the other end of the connecting rod (3) is in threaded fit with the driving motor (1);
the connecting rod (3) is close to the flange (33) fixedly arranged at the position of the driving motor (1), the placing platform (12) is arranged at the position of the driving motor (1) corresponding to the flange (33), and the placing platform (12) is matched with the flange (33).
2. The underwater motor and duct assembly structure of claim 1, wherein:
the second connecting part (20) is provided with a countersunk hole (21) at the position corresponding to the connecting rod (3), and the end part of the connecting rod (3) is arranged in the countersunk hole (21).
3. The underwater motor and duct assembly structure of claim 2, wherein:
the connecting rod (3) is provided with a thickening end (31) corresponding to the counter bore (21), and the thickening end (31) is matched with the counter bore (21).
4. The underwater motor and duct assembly structure of claim 1, wherein:
the connecting rod (3) is radially and obliquely arranged between the second connecting part (20) and the first connecting part (10).
5. A structure for assembling an underwater motor and a duct according to claim 3, wherein:
the length from the upper flange (33) of the connecting rod (3) to the thickening end (31) is smaller than the length of a straight line between one end of the counter bore (21) close to the placement platform (12) and the bottom wall of the placement platform (12).
6. A structure for assembling an underwater motor and a duct according to claim 3, wherein:
a connecting part (32) is arranged between an upper flange (33) of the connecting rod (3) and the thickening end (31), and the joint of the flange (33) and the connecting part (32) is gently connected through an arc.
7. The underwater motor and duct assembly structure of claim 6, wherein:
the connection part of the thickening end (31) and the connecting part (32) is gently connected through an arc line.
8. A structure for assembling an underwater motor and a duct according to claim 3, wherein:
the middle part of the thickening end (31) is provided with a hexagonal concave hole (311).
9. The underwater motor and duct assembly structure of claim 1, wherein:
the connecting rods (3) are provided with 4 connecting rods and are uniformly distributed around the axial direction of the duct shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293022.9U CN220595174U (en) | 2023-08-24 | 2023-08-24 | Assembly structure of underwater motor and duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293022.9U CN220595174U (en) | 2023-08-24 | 2023-08-24 | Assembly structure of underwater motor and duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220595174U true CN220595174U (en) | 2024-03-15 |
Family
ID=90172477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322293022.9U Active CN220595174U (en) | 2023-08-24 | 2023-08-24 | Assembly structure of underwater motor and duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220595174U (en) |
-
2023
- 2023-08-24 CN CN202322293022.9U patent/CN220595174U/en active Active
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