CN216374963U - Propeller with cylindrical rubber sleeve - Google Patents
Propeller with cylindrical rubber sleeve Download PDFInfo
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- CN216374963U CN216374963U CN202122687369.2U CN202122687369U CN216374963U CN 216374963 U CN216374963 U CN 216374963U CN 202122687369 U CN202122687369 U CN 202122687369U CN 216374963 U CN216374963 U CN 216374963U
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- sleeve
- cylindrical rubber
- rubber sleeve
- wall
- propeller
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Abstract
The utility model relates to the technical field of marine propeller devices, and particularly discloses a propeller with a cylindrical rubber sleeve, wherein paddles are uniformly connected to the outer wall of a hub, a connecting sleeve is arranged in an inner cavity of the hub, a connecting rib is connected between the connecting sleeve and the hub, the shaft sleeve is arranged in the inner cavity of the connecting sleeve, the cylindrical rubber sleeve is sleeved in the connecting sleeve, the outer diameter of the cylindrical rubber sleeve is larger than the inner diameter of the connecting sleeve, three fixed blocks are uniformly arranged on the outer wall of the shaft sleeve along the annular shape, the inner end of each fixed block is vertically and fixedly connected to the outer wall of the shaft sleeve along the axial direction, the outer end of each fixed block is sleeved with a movable shell in a sliding mode, a spring is connected between the end surface of the inner cavity of the movable shell and the outer end surface of the fixed block, a central hole is formed in the axis of the cylindrical rubber sleeve, cavities are uniformly arranged at the positions of the inner cavity of the cylindrical rubber sleeve, the shaft sleeve is sleeved in the central hole, and the movable shells are correspondingly clamped in the cavities respectively; the problem of the ability that the screw shaft sleeve bears the rotation moment of torsion and impact resistance are relatively weak is solved.
Description
Technical Field
The utility model relates to the technical field of marine propeller devices, in particular to a propeller with a cylindrical rubber sleeve.
Background
The ship needs a driving force when sailing on the water surface, and the ship propeller is a tool for providing the thrust for the ship and has the function of converting the power provided by the ship power device into the thrust to propel the ship to advance. The propeller is a commonly used ship propeller and comprises a hub and a plurality of blades radially fixed on the hub, wherein a shaft sleeve is arranged in the hub and matched with an output shaft of an engine in a sleeved mode. The propeller is installed below the waterline of the stern, is rotated by the power of the engine, pushes water to the back of the ship, and pushes the ship to advance by the reaction force of the water. The propeller has simple structure, light weight and high efficiency, and is protected below a waterline.
However, when the output rotation torque received by the transmission rod of the existing propeller is too high, or when the paddle is subjected to large external impact due to the fact that the paddle touches a hard object, the fixed shaft sleeve part is easily crushed, and therefore the propeller loses power.
SUMMERY OF THE UTILITY MODEL
The utility model designs a propeller with a cylindrical rubber sleeve aiming at solving the problems of the existing propeller shaft sleeve that the capability of bearing rotating torque and the impact resistance are weaker.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a screw with cylindrical rubber sleeve, includes wheel hub and axle sleeve, the even fixedly connected with paddle of wheel hub's outer wall, the inner chamber of wheel hub is provided with the adapter sleeve, be connected with the splice bar between the outer wall of adapter sleeve and the inner wall of wheel hub, the axle sleeve set up in the inner chamber of adapter sleeve, still include cylindrical rubber sleeve, cylindrical rubber sleeve suit in the adapter sleeve, just the external diameter of cylindrical rubber sleeve is greater than the internal diameter of adapter sleeve, the edge of axle sleeve outer wall evenly is provided with three fixed block along the annular, the inner end of fixed block along the axial vertical fixed connection in the outer wall of axle sleeve, movable housing has been cup jointed in the outer end slip of fixed block, be connected with the spring between movable housing inner chamber terminal surface and the outer terminal surface of fixed block, the centre bore has been seted up in cylindrical rubber sleeve's axle center, the inner cavity of the cylindrical rubber sleeve is uniformly provided with cavities at the periphery of the middle part of the central hole, the shaft sleeve is sleeved in the central hole, and the movable shells are correspondingly clamped in the cavities respectively.
Preferably, the periphery of the shaft sleeve, which is close to the middle part, is provided with an annular bulge, the fixed block is respectively connected to the outer wall of the annular bulge, the inner cavity of the cylindrical rubber sleeve corresponds to the position of the annular bulge, and the annular groove is arranged at the position of the inner cavity of the cylindrical rubber sleeve, and the cavity is respectively arranged at the outer edge of the middle part of the inner cavity of the annular groove.
Preferably, the inner edge of the opening of the movable shell and the outer edge of the outer end of the fixed block are respectively provided with a limiting bulge.
Preferably, the inner diameter of the central hole is smaller than the outer diameter of the shaft sleeve, and the inner diameter of the annular groove is smaller than the outer diameter of the annular protrusion.
Preferably, the vertical distance between the axis of the shaft sleeve and the outer end face of the movable shell is greater than the vertical distance between the end face of the cavity and the axis of the cylindrical rubber sleeve.
Compared with the prior art, the utility model has the beneficial effects that:
the propeller with the cylindrical rubber sleeve has a damping effect, so that when a ship engine is propelled to work, the cylindrical rubber sleeve in the propeller can well filter the vibration of the engine, and the driving quality is improved; in addition, the cylindrical rubber sleeve can buffer torsion when the propeller drives a hard object under the high-speed working state, so that the transmission shaft and the gear box are protected, and the transmission part is prevented from being damaged when being subjected to larger external impact.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic side view of the sleeve of the present invention;
FIG. 3 is a schematic front view of the sleeve of the present invention;
fig. 4 is a schematic front view of the cylindrical rubber sleeve according to the present invention.
In the figure: 1-a hub; 11-a paddle; 12-connecting ribs; 2-connecting sleeves; 3-shaft sleeve; 31-an annular projection; 32-fixed block; 33-a movable housing; 34-a spring; 4-cylindrical rubber sleeve; 41-a central hole; 42-an annular groove; 43-cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the utility model provides a technical scheme, a propeller with a cylindrical rubber sleeve, comprising a hub 1 and a shaft sleeve 3, wherein the outer wall of the hub 1 is uniformly and fixedly connected with blades 11, the inner cavity of the hub 1 is provided with a connecting sleeve 2, a connecting rib 12 is connected between the outer wall of the connecting sleeve 2 and the inner wall of the hub 1, the shaft sleeve 3 is arranged in the inner cavity of the connecting sleeve 2, the propeller also comprises a cylindrical rubber sleeve 4, the cylindrical rubber sleeve 4 is sleeved in the connecting sleeve 2, the outer diameter of the cylindrical rubber sleeve 4 is larger than the inner diameter of the connecting sleeve 2, three fixing blocks 32 are uniformly arranged on the outer wall of the shaft sleeve 3 along an annular shape, the inner end of each fixing block 32 is vertically and fixedly connected to the outer wall of the shaft sleeve 3 along the axial direction, the outer end of each fixing block 32 is slidably sleeved with a movable shell 33, a spring 34 is connected between the end surface of the inner cavity of the movable shell 33 and the outer end surface of the fixing block 32, the axial center of the cylindrical rubber sleeve 4 is provided with a center hole 41, the inner cavity of the cylindrical rubber sleeve 4 is uniformly provided with a cavity 43 at the periphery of the middle part of the central hole 41, the shaft sleeve 3 is sleeved in the central hole 41, and the movable shell 33 is correspondingly clamped in the cavity 43 respectively.
In this embodiment, the periphery of the shaft sleeve 3 near the middle portion is provided with an annular protrusion 31, the fixing blocks 32 are respectively connected to the outer walls of the annular protrusions 31, the annular groove 42 is arranged at the position of the inner cavity of the cylindrical rubber sleeve 4 corresponding to the annular protrusion 31, and the cavities 43 are respectively arranged at the outer edge of the middle portion of the inner cavity of the annular groove 42.
In this embodiment, the inner edge of the opening of the movable housing 33 and the outer edge of the outer end of the fixing block 32 are respectively provided with a limiting protrusion.
In the present embodiment, the inner diameter of the center hole 41 is smaller than the outer diameter of the boss 3, and the inner diameter of the annular groove 42 is smaller than the outer diameter of the annular protrusion 31.
In this embodiment, the vertical distance between the axis of the shaft sleeve 3 and the outer end surface of the movable housing 33 is greater than the vertical distance between the end surface of the inner cavity of the cavity 43 and the axis of the cylindrical rubber sleeve 4.
The working principle is as follows: when the device is used, the shaft sleeve 3 and the power output shaft are sleeved and assembled, the cylindrical rubber sleeve 4 is assembled to the periphery of the shaft sleeve 3 in a matching way by using a press machine and the like, so that the annular protrusion 31 is positioned in the annular groove 42, and the movable shell 33 is positioned in the cavity 43; then, a press machine and the like are matched to sleeve the cylindrical rubber sleeve 4 into the inner cavity of the connecting sleeve 2; the cylindrical rubber sleeve 4 has elasticity, and when the cylindrical rubber sleeve 4 is pressed and assembled, the spring 34 is compressed through the movable shell 33, so that the assembly is facilitated; after assembly, the shaft sleeve 3 is tightly assembled with the connecting sleeve 2 through the cylindrical rubber sleeve 4 due to the elasticity of the rubber and the elasticity of the spring 34, and the functions of shock absorption and impact protection are realized under the elastic action of the rubber sleeve 4 and the spring 34.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a screw with cylindrical rubber sleeve, includes wheel hub (1) and axle sleeve (3), the even fixedly connected with paddle (11) of outer wall of wheel hub (1), the inner chamber of wheel hub (1) is provided with adapter sleeve (2), the outer wall of adapter sleeve (2) with be connected with between the inner wall of wheel hub (1) splice bar (12), axle sleeve (3) set up in the inner chamber of adapter sleeve (2), its characterized in that: the connecting sleeve is characterized by further comprising a cylindrical rubber sleeve (4), the cylindrical rubber sleeve (4) is sleeved in the connecting sleeve (2), the outer diameter of the cylindrical rubber sleeve (4) is larger than the inner diameter of the connecting sleeve (2), three fixing blocks (32) are uniformly arranged on the outer wall of the shaft sleeve (3) along the annular direction, the inner ends of the fixing blocks (32) are vertically and fixedly connected to the outer wall of the shaft sleeve (3) along the axial direction, the outer end of each fixing block (32) is sleeved with a movable shell (33) in a sliding mode, a spring (34) is connected between the end face of the inner cavity of the movable shell (33) and the outer end face of each fixing block (32), a center hole (41) is formed in the axis of the cylindrical rubber sleeve (4), cavities (43) are uniformly arranged in the position, on the periphery of the middle of the center hole (41), of the shaft sleeve (3) is sleeved in the center hole (41), the movable shells (33) are correspondingly clamped in the cavities (43) respectively.
2. A propeller having a cylindrical rubber sleeve as set forth in claim 1, wherein: the periphery that axle sleeve (3) are close to the middle part is provided with annular protrusion (31), fixed block (32) connect respectively in on the outer wall of annular protrusion (31), cylindrical rubber sleeve (4) inner chamber corresponds the position of annular protrusion (31) is provided with ring channel (42), cavity (43) set up respectively in the periphery department at ring channel (42) inner chamber middle part.
3. A propeller having a cylindrical rubber sleeve as set forth in claim 2, wherein: the inner edge of the opening of the movable shell (33) and the outer edge of the outer end of the fixed block (32) are respectively provided with a limiting bulge.
4. A propeller having a cylindrical rubber sleeve as set forth in claim 3, wherein: the inner diameter of the central hole (41) is smaller than the outer diameter of the shaft sleeve (3), and the inner diameter of the annular groove (42) is smaller than the outer diameter of the annular protrusion (31).
5. The propeller as claimed in claim 4, wherein the rubber sleeve has a cylindrical shape, and the rubber sleeve has: the vertical distance between the axis of the shaft sleeve (3) and the outer end face of the movable shell (33) is larger than the vertical distance between the end face of the inner cavity of the cavity (43) and the axis of the cylindrical rubber sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122687369.2U CN216374963U (en) | 2021-11-04 | 2021-11-04 | Propeller with cylindrical rubber sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122687369.2U CN216374963U (en) | 2021-11-04 | 2021-11-04 | Propeller with cylindrical rubber sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216374963U true CN216374963U (en) | 2022-04-26 |
Family
ID=81248953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122687369.2U Active CN216374963U (en) | 2021-11-04 | 2021-11-04 | Propeller with cylindrical rubber sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216374963U (en) |
-
2021
- 2021-11-04 CN CN202122687369.2U patent/CN216374963U/en active Active
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