Suspension type electric direct-drive propelling system

Abstract

The utility model discloses a suspension type electric direct-drive propelling system which comprises a fixing part and a propeller. The fixing part is arranged on the water traffic equipment, a mounting groove is formed in the lower portion of the fixing part, and a pair of inserting grooves are oppositely formed in the upper portions of the two side walls of the mounting groove; the thruster comprises a shell, a driving motor and a propeller; a water inlet grating is arranged on the lower portion of the shell, a water spraying opening is formed in the front end of the shell, a connecting end plate is arranged on the outer edge of the front end of the shell, a main flow channel communicated with the water inlet grating and the water spraying opening is arranged in the shell, a hanging table is arranged on the top of the shell, and the two sides of the hanging table protrude outwards to form inserting parts. The inserting parts on the two sides of the hanging table are inserted into the inserting grooves in the two sides of the mounting groove correspondingly, and the connecting end plate is fixed to the front ends of the fixing parts through screws. The driving motor is installed at the rear end of the shell and provided with a motor shaft extending towards the water spraying opening, and the propeller is arranged in the water spraying opening and coaxially installed on the motor shaft. The propeller is firm in fixation and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of propellers, in particular to a suspended electric direct-drive propulsion system. Background Art

[0002] Electric propellers are devices that rely on the power of motors to drive the impellers to rotate to achieve propulsion. They have the advantages of compact structure, environmental protection and low cost, and are widely used in small water transportation equipment. When the electric propeller is damaged, it needs to be removed from the water transportation equipment for repair. Existing electric propellers are generally fixed directly to the water transportation equipment with screws, which has the problems of unreliable fixation and inconvenient disassembly and assembly. Utility Model Content

[0003] In view of the defects in the prior art, the utility model provides a suspended electric direct-drive propulsion system so that the propeller can be firmly fixed and easily assembled and disassembled.

[0004] The utility model provides a suspended electric direct-drive propulsion system, comprising:

[0005] A fixing part, the fixing part is arranged on the water transportation equipment, the lower part of the fixing part is provided with a mounting groove extending in the longitudinal direction, and the upper parts of the two side walls of the mounting groove are oppositely provided with a pair of slots extending in the longitudinal direction;

[0006] A propeller, the propeller comprising a shell, a driving motor and a propeller; a water inlet grille is provided at the lower portion of the shell, a water outlet is provided at the front end of the shell, and a connecting end plate is provided at the outer edge of the front end of the shell, a main flow channel connecting the water inlet grille and the water outlet is provided in the shell, a hanging platform is provided at the top of the shell, both sides of the hanging platform protrude outward to form a plug-in part, the plug-in parts on both sides of the hanging platform are respectively inserted into the slots on both sides of the installation groove, and the connecting end plate is fixed to the front end of the fixing part by screws; the driving motor is installed at the rear end of the shell, the driving motor has a motor shaft extending toward the water outlet, and the propeller is arranged in the water outlet and coaxially installed on the motor shaft.

[0007] Furthermore, a motor mounting position is provided at the rear of the shell, the drive motor is installed in the motor mounting position, a motor cooling channel connected to the main channel is provided at the lower side of the motor mounting position, and the water inlet grille has a main water inlet connected to the outside of the main channel and a secondary water inlet connected to the outside of the motor cooling channel.

[0008] Furthermore, two auxiliary water inlets are arranged opposite to each other on the left and right, and the part of the water inlet grille located between the two auxiliary water inlets is positioned on the outside of the driving motor.

[0009] Furthermore, a plurality of grille bars are arranged outside the water inlet grille, and a water-facing surface of each of the grille bars is cut with an oblique angle.

[0010] Furthermore, the water spray nozzle is a contraction-type nozzle with a large diameter at the rear and a small diameter at the front, the propeller is arranged at the rear of the water spray nozzle, and a stationary blade is arranged at the front of the water spray nozzle.

[0011] Furthermore, a straightening cone is provided outside the motor shaft, and the front end of the straightening cone forms an annular boss outside the motor shaft. A mounting sleeve is provided at the center of the propeller, and the mounting sleeve is sleeved outside the motor shaft and supported on the front side of the annular boss. The front end of the motor shaft is tightened with a locking nut locked at the front end of the mounting sleeve.

[0012] Furthermore, the shape and size of the connecting end plate are the same as the outer contour of the front end of the fixing portion.

[0013] Furthermore, the shell includes a main shell and a nozzle shell fixed to the front end of the main shell by bolts, the rear part of the main shell is provided with a first protrusion protruding forward, the rear part of the water inlet grille is provided with a first groove engaged with the first protrusion, the rear end of the nozzle shell is provided with a second protrusion, and the front end of the water inlet grille is provided with a second groove engaged with the second protrusion.

[0014] The beneficial effects of the utility model are embodied in:

[0015] When installing the thruster, the plug-in parts on both sides of the thruster suspension platform are respectively inserted into the slots on both sides of the mounting groove of the fixing part. The connecting end plate at the front end of the thruster is fitted with the front end surface of the fixing part and the connecting end plate is fixed to the front end of the fixing part by screws. The thruster is firmly fixed. When the thruster is installed on the water transportation equipment, the driving motor drives the propeller to rotate through the motor shaft. The propeller drives the water flow to be sucked in from the water inlet grille and discharged from the water spray port, thereby realizing the propulsion of the water transportation equipment under the action of the reaction force of the water flow. When the thruster needs to be removed, the screws on the connecting end plate are unscrewed, and the thruster can be pulled out of the mounting groove of the fixing part. Therefore, the present application can realize the rapid disassembly and assembly of the thruster, and the disassembly and assembly are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 This is a schematic diagram of the installation of the propeller of the utility model embodiment;

[0018] Figure 2 It is an assembly diagram of the propeller of the utility model embodiment;

[0019] Figure 3 An exploded view of a propeller according to an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the main housing and the nozzle housing of the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the water inlet grille and the main housing of the embodiment of the utility model;

[0022] Figure 6 It is a schematic structural diagram of the water inlet grille and the nozzle housing of an embodiment of the utility model.

[0023] In the accompanying drawings, 100-fixing part; 110-installing groove; 111-slot; 200-thruster; 210-housing; 211-water inlet grille; 2111-main water inlet; 2112-auxiliary water inlet; 2113-first groove; 2114-second groove; 212-water spray nozzle; 2121-static blade; 213-connecting end plate; 214-main flow channel; 215-suspension platform; 2151-plug-in part; 216-motor mounting position; 217-motor cooling flow channel; 218-main shell; 2181-first protrusion; 219-spout shell; 2191-second protrusion; 220-drive motor; 221-motor shaft; 2211-rectifier cone; 230-propeller; 231-installing sleeve; 232-locking nut. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0025] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0026] like Figure 1-Figure 6 As shown, an embodiment of the utility model provides a suspended electric direct-drive propulsion system, including a fixing portion 100 and a propeller 200 .

[0027] The fixing part 100 is arranged on the water transportation equipment and can be a part of the water transportation equipment. The lower part of the fixing part 100 is provided with a mounting groove 110 extending longitudinally, and the upper parts of the two side walls of the mounting groove 110 are oppositely provided with a pair of slots 111 extending longitudinally.

[0028] In this embodiment, the direction in which the propeller 200 discharges water is defined as the front, and the opposite direction in which the propeller discharges water is defined as the rear. The structure of the propeller 200 is described in detail below.

[0029] The propeller 200 includes a shell 210, a driving motor 220 and a propeller 230; a water inlet grille 211 is provided at the lower part of the shell 210, a water spray port 212 is provided at the front end of the shell 210, and a connecting end plate 213 is provided at the outer edge of the front end of the shell 210, a main flow channel 214 connecting the water inlet grille 211 and the water spray port 212 is provided in the shell 210, and a hanging platform 215 is provided at the top of the shell 210, and both sides of the hanging platform 215 protrude outward to form a plug-in portion 2151, and the plug-in portions 2151 on both sides of the hanging platform 215 are respectively inserted into the slots 111 on both sides of the mounting groove 110, and the connecting end plate 213 is fixed to the front end of the fixing portion 100 by screws; the driving motor 220 is installed at the rear end of the shell 210, and the driving motor 220 has a motor shaft 221 extending toward the water spray port 212, and the propeller 230 is arranged in the water spray port 212 and coaxially installed on the motor shaft 221.

[0030] When installing the propeller 200, the plug-in parts 2151 on both sides of the propeller 200 suspension platform 215 are respectively inserted into the slots 111 on both sides of the mounting groove 110 of the fixing part 100, and the connecting end plate 213 at the front end of the propeller 200 is attached to the front end surface of the fixing part 100 and the connecting end plate 213 is fixed to the front end of the fixing part 100 by screws. The propeller 200 is firmly fixed. When the propeller 200 is installed on the water transportation equipment, the driving motor 220 drives the propeller 230 to rotate through the motor shaft 221, and the propeller 230 drives the water flow to be sucked in from the water inlet grille 211 and discharged from the water spray port 212, so that the water transportation equipment is propelled under the action of the water flow reaction force. When the propeller 200 needs to be removed, the screws on the connecting end plate 213 are unscrewed, and the propeller 200 can be pulled out from the mounting groove 110 of the fixing part 100. Therefore, the present application can realize the rapid disassembly and assembly of the propeller 200, and the disassembly and assembly are convenient.

[0031] In one embodiment, referring to Figure 2 and Figure 3 The rear part of the housing 210 is provided with a motor mounting position 216, and the driving motor 220 is mounted in the motor mounting position 216. The lower side of the motor mounting position 216 is provided with a motor cooling channel 217 connected to the main channel 214. The water inlet grille 211 has a main water inlet 2111 connected to the outside of the main channel 214 and a secondary water inlet 2112 connected to the outside of the motor cooling channel 217. Preferably, two secondary water inlets 2112 are arranged opposite to each other on the left and right, and the part of the water inlet grille 2111 located between the two secondary water inlets 2112 is positioned outside the driving motor 220.

[0032] By setting up two water inlets, water can flow into the main channel 214 through the main water inlet 2111, and can also flow into the motor cooling channel 217 through the secondary water inlet 2112 and then into the main channel 214, so that the water flows into the motor cooling channel 217 more smoothly, which is beneficial to the heat dissipation of the drive motor 220.

[0033] In one embodiment, referring to Figure 2 A plurality of grille bars are arranged outside the water inlet grille 211 , and the water-facing surface of each grille bar is cut with an oblique angle, so that suspended matter in the water can move smoothly and debris can be prevented from accumulating at the water inlet grille 211 .

[0034] In one embodiment, referring to Figure 4 The water spray port 212 is a contraction type spray port with a large diameter at the rear and a small diameter at the front. The propeller 230 is arranged at the rear of the water spray port 212. The front of the water spray port 212 is provided with a stationary blade 2121. The purpose of providing the stationary blade 2121 is to eliminate the rotational motion of the water flow and balance the torque.

[0035] In one embodiment, referring to Figure 2 A rectifying cone 2211 is provided outside the motor shaft 221, and the front end of the rectifying cone 2211 forms an annular boss outside the motor shaft 221. A mounting sleeve 231 is provided at the center of the propeller 230. The mounting sleeve 231 is sleeved outside the motor shaft 221 and supported on the front side of the annular boss. The front end of the motor shaft 221 is tightened with a locking nut 232 locked at the front end of the mounting sleeve 231, so that it is convenient to fix the propeller 230 on the motor shaft 221.

[0036] In one embodiment, referring to Figure 1 The shape and size of the connecting end plate 213 are the same as the outer contour of the front end of the fixing part 100, so that the propeller 200 is integrated with the fixing part 100 of the water transportation equipment and has a beautiful appearance.

[0037] In one embodiment, referring to Figure 4 , Figure 5 and Figure 6 The outer shell 210 includes a main shell 218 and a nozzle shell 219 fixed to the front end of the main shell 218 by bolts. The rear portion of the main shell 218 is provided with a first protrusion 2181 protruding forward, the rear portion of the water inlet grille 211 is provided with a first groove 2113 engaged with the first protrusion 2181, the rear end of the nozzle shell 219 is provided with a second protrusion 2191, and the front end of the water inlet grille 211 is provided with a second groove 2114 engaged with the second protrusion 2191. When assembling the propeller 200, first install the water inlet grille 211 on the lower part of the main shell 218, and insert the first protrusion 2181 at the rear of the main shell 218 into the first groove 2113 at the rear of the water inlet grille 211, then dock the nozzle shell 219 at the front end of the main shell 218, and insert the second protrusion 2191 at the rear end of the nozzle shell 219 into the second groove 2114 at the front end of the water inlet grille 211, and finally fix the nozzle shell 219 to the main shell 218 by bolts, and the assembly of the propeller 200 is completed, which is easy to assemble.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A suspended electric direct drive propulsion system, characterized in that: include: A fixing part, the fixing part is arranged on the water transportation equipment, the lower part of the fixing part is provided with a mounting groove extending in the longitudinal direction, and the upper parts of the two side walls of the mounting groove are oppositely provided with a pair of slots extending in the longitudinal direction; A propeller, the propeller comprising a shell, a driving motor and a propeller; a water inlet grille is provided at the lower portion of the shell, a water outlet is provided at the front end of the shell, and a connecting end plate is provided at the outer edge of the front end of the shell, a main flow channel connecting the water inlet grille and the water outlet is provided in the shell, a hanging platform is provided at the top of the shell, both sides of the hanging platform protrude outward to form a plug-in part, the plug-in parts on both sides of the hanging platform are respectively inserted into the slots on both sides of the installation groove, and the connecting end plate is fixed to the front end of the fixing part by screws; the driving motor is installed at the rear end of the shell, the driving motor has a motor shaft extending toward the water outlet, and the propeller is arranged in the water outlet and coaxially installed on the motor shaft.

2. The suspended electric direct drive propulsion system according to claim 1, characterized in that: A motor mounting position is provided at the rear of the shell, the drive motor is installed in the motor mounting position, a motor cooling flow channel connected to the main flow channel is provided at the lower side of the motor mounting position, and the water inlet grille has a main water inlet connected to the outside of the main flow channel and a secondary water inlet connected to the outside of the motor cooling flow channel.

3. The suspended electric direct drive propulsion system according to claim 2, characterized in that: The auxiliary water inlets are arranged with two on the left and right sides, and the part of the water inlet grille between the two auxiliary water inlets is positioned on the outside of the driving motor.

4. The suspended electric direct drive propulsion system according to claim 1, characterized in that: A plurality of grille bars are arranged outside the water inlet grille, and the water-facing surface of each grille bar is cut with an oblique angle.

5. The suspended electric direct drive propulsion system according to claim 1, characterized in that: The water spraying port is a contraction-type nozzle with a large diameter at the rear and a small diameter at the front. The propeller is arranged at the rear of the water spraying port, and a stationary blade is arranged at the front of the water spraying port.

6. The suspended electric direct drive propulsion system according to claim 1, characterized in that: A rectifier cone is provided outside the motor shaft, and the front end of the rectifier cone forms an annular boss outside the motor shaft. A mounting sleeve is provided at the center of the propeller, and the mounting sleeve is sleeved outside the motor shaft and supported on the front side of the annular boss. The front end of the motor shaft is tightened with a locking nut locked at the front end of the mounting sleeve.

7. The suspended electric direct drive propulsion system according to claim 1, characterized in that: The shape and size of the connecting end plate are the same as the outer contour of the front end of the fixing portion.

8. The suspended electric direct drive propulsion system according to claim 1, characterized in that: The shell includes a main shell and a nozzle shell fixed to the front end of the main shell by bolts, the rear part of the main shell is provided with a first protrusion protruding forward, the rear part of the water inlet grille is provided with a first groove engaged with the first protrusion, the rear end of the nozzle shell is provided with a second protrusion, and the front end of the water inlet grille is provided with a second groove engaged with the second protrusion.

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