Anti-winding spiral propelling device for inland river

Abstract

The utility model discloses an inland river anti-winding screw propulsion device which comprises a base installed on a ship bottom plate, a diesel engine, a hydraulic motor and a base are fixedly arranged on the base, the output end of the diesel engine is coaxially and fixedly connected with a main shaft, the main shaft is installed on the base in a rotating mode, and a sleeve installed at the bottom of the base in a rotating mode is arranged below the base. The upper end of the transmission shaft is in transmission connection with a hydraulic motor, the lower end of the transmission shaft is fixedly connected with a machine shell, a clutch reversing transmission mechanism is connected between the upper end of the transmission shaft and the main shaft, and the lower end of the transmission shaft is in transmission connection with a propeller which is installed on the machine shell in a rotating and sealing mode in the horizontal direction; the sleeve is suitable for rotating by 360 degrees under the driving of the hydraulic motor, and the propeller is suitable for rotating forwards and backwards through the clutch reversing transmission mechanism under the action of the diesel engine. The propeller can rotate by 360 degrees around the longitudinal shaft and freely switch forward rotation and reverse rotation around the propeller, the overall structure is small and exquisite, and the propeller is more suitable for being used in inland ships with small space.

Description

Technical Field

[0001] The utility model relates to the field of propellers, in particular to a spiral propulsion device for preventing entanglement in inland rivers. Background Art

[0002] A propeller is a mechanism that propels a ship forward. It is an energy converter that converts natural force, human force or mechanical energy into the thrust of a ship. According to the action mode, it can be divided into two categories: active type and reactive type. Among them, the fiber, sail (see sailing ship), etc. that drive the ship forward by human or wind power are of the active type, while the oar, scull, paddle wheel, water jet propeller, propeller, etc. are of the reactive type. Most modern transport ships use reactive propellers, and the most widely used is the propeller.

[0003] The screw propeller mainly consists of a hydraulic motor, a transmission device, a control valve group and a propeller. By reversing the oil circuit of the control valve, the forward rotation, locking and reverse rotation of the hydraulic motor are realized, so as to complete the forward rotation, stop and reverse rotation of the propeller. This commutation method has a complex structure and poor instantaneity, and is not suitable for inland river ships with a small space. At the same time, the propeller cannot rotate around the longitudinal axis, and an additional rudder device needs to be added for the steering of the ship, and the operation is complex. Content of the Utility Model

[0004] The purpose of the utility model is to provide a spiral propulsion device for preventing entanglement in inland rivers in view of the deficiencies of the prior art, which can realize the 360° rotation of the propeller around the longitudinal axis and freely switch between forward and reverse rotations around itself. The overall structure is small and more suitable for inland river ships with a small space.

[0005] The technical solution for realizing the purpose of the utility model is as follows:

[0006] A spiral propulsion device for preventing entanglement in inland rivers includes a base fixedly installed on the bottom plate of a ship. A diesel engine, a hydraulic motor and a base are fixedly arranged on the base. The output end of the diesel engine is coaxially and fixedly connected with a main shaft. The main shaft is rotatably installed on the base. A sleeve rotatably installed at the bottom of the base is arranged below the base. A transmission shaft perpendicular to the main shaft is coaxially and rotatably arranged in the sleeve. The upper end is in transmission connection with the hydraulic motor, and the lower end is fixedly connected with a housing. A clutch commutation transmission mechanism is connected between the upper end of the transmission shaft and the main shaft. The lower end is in transmission connection with a propeller rotatably and hermetically installed on the housing in the horizontal direction. The sleeve is adapted to make a 360° rotation driven by the hydraulic motor, and the propeller is adapted to make forward and reverse rotations through the clutch commutation transmission mechanism under the action of the diesel engine.

[0007] Furthermore, the clutch reversing transmission mechanism includes reversing bevel gears rotatably mounted on the main shaft and arranged oppositely, and a first bevel gear that meshes with both bevel gears and is coaxially and fixedly mounted on the top of the transmission shaft. A reversing sleeve is arranged between the two reversing bevel gears. The reversing sleeve is axially slidable and radially fixedly mounted on the main shaft. A fork that extends to the top of the base is rotatably connected to the outer peripheral surface of the reversing sleeve. Clutch discs that are mutually adapted are provided at both ends and at the opposite ends of the reversing bevel gears. The middle of the fork is rotatably mounted on the top of the base.

[0008] Furthermore, a connecting key that protrudes outward is provided on the main shaft, and a key groove that penetrates axially and is adapted to the connecting key is provided in the inner ring of the reversing sleeve.

[0009] Furthermore, a support frame fixedly mounted on the base is provided on the side of the base. The hydraulic motor is fixedly mounted on the top of the support frame, and the output shaft is vertically downward and coaxially fixedly connected with a steering driving wheel. A steering driven wheel that meshes with the steering driving wheel is coaxially fixedly connected to the top of the sleeve.

[0010] Furthermore, the sleeve includes a first connecting pipe, a second connecting pipe, and a third connecting pipe that are coaxially fixedly connected. An annular mounting table is provided on the base. The upper end of the first connecting pipe is fixedly connected to the steering driven wheel, and a first rotating bearing is axially limited and connected between the first connecting pipe and the annular mounting table. The machine shell is fixedly mounted on the lower end of the third connecting pipe.

[0011] Furthermore, second rotating bearings are provided between the transmission shaft and the sleeve near the upper and lower ends.

[0012] Furthermore, a tapered sleeve is provided between the main shaft and the output end of the diesel engine and is fixedly connected through the tapered sleeve.

[0013] Furthermore, a second bevel gear is coaxially fixedly connected to the lower end of the transmission shaft, and a third bevel gear that meshes with the second bevel gear is coaxially fixedly connected to the rotating shaft of the propeller.

[0014] Furthermore, relatively arranged tapered roller bearings are coaxially connected between the rotating shaft of the propeller and the machine shell.

[0015] Furthermore, a draft tube that covers the blades of the propeller is coaxially fixedly connected to the machine shell. A skeleton oil seal is provided between the draft tube and the rotating shaft of the propeller. A rubber ring and a pressing plate are sequentially provided outside the skeleton oil seal.

[0016] Adopting the above technical solution, the utility model has the following beneficial effects:

[0017] (1) The utility model directly drives the propeller to rotate by a diesel engine through a main shaft and a transmission shaft, and a clutch-reversing transmission mechanism is additionally arranged between the main shaft and the transmission shaft, so as to realize the forward and reverse rotation of the propeller. Compared with the traditional method of realizing the forward and reverse rotation switching of the motor and the propeller by changing the oil circuit through a control valve, the structure is more concise, the action reaction is immediate, and at the same time, the hydraulic motor drives the sleeve to make a 360° rotation. Compared with the traditional structure, the installation of the rudder device is omitted, the overall structure is small and compact, and it is more suitable for inland river ships with a small space, which is convenient for solving the problems of difficult turning, propeller entanglement and difficult steering.

[0018] (2) The clutch-reversing transmission mechanism of the utility model drives the reversing sleeve to move axially along the main shaft through a fork, so as to realize the fixed connection with two reversing bevel gears through clutch plates respectively, and further realize the forward and reverse rotation of the first bevel gear respectively, so as to drive the forward and reverse rotation of the propeller. The structure is concise and the operation is convenient.

[0019] (3) The connecting key of the utility model is inserted into the key groove to realize the axial sliding connection and axial fixed connection of the reversing sleeve, and the structure is concise.

[0020] (4) The utility model realizes the rotation of the sleeve driven by the hydraulic motor through the mutually meshing steering driving wheel and steering driven wheel, and the transmission is reliable, efficient and the structure is compact, which is beneficial to the miniaturization development of the device.

[0021] (5) The sleeve of the utility model is assembled by multiple connecting pipes, which is convenient for transportation and the installation of the internal structure.

[0022] (6) The main shaft of the utility model is fixedly connected with the output end of the diesel engine through a tapered sleeve, which is convenient for disassembly and later maintenance.

[0023] (7) The transmission shaft of the utility model is connected with the rotating shaft of the propeller through bevel gear transmission, so as to realize the change of the transmission direction and high transmission precision.

[0024] (8) The utility model is provided with second rotating bearings at both the upper and lower ends of the transmission shaft, so as to ensure the coaxiality of the transmission shaft rotation, avoid slight deviation at both ends resulting in transmission jamming, and improve the transmission stability.

[0025] (9) The utility model adopts relatively arranged tapered roller bearings to be connected between the rotating shaft of the propeller and the machine shell, and the structure is compact and the load-bearing capacity is strong.

[0026] (10) The utility model is additionally provided with a diversion pipe, which effectively protects the propeller and avoids entanglement and hitting stones. Description of the Drawings

[0027] In order to make the content of the present utility model easier to be clearly understood, the following further describes the present utility model in detail according to specific embodiments and in conjunction with the accompanying drawings, where:

[0028] Figure 1 is a perspective view of the present utility model;

[0029] Figure 2 is a top view of the present utility model;

[0030] Figure 3 is Figure 2 a sectional view of the A-A plane of.

[0031] The reference numerals in the accompanying drawings are:

[0032] base 1, annular mounting table 1-1, diesel engine 2, hydraulic motor 3, base 4, main shaft 5, sleeve 6, first connecting pipe 6-1, second connecting pipe 6-2, third connecting pipe 6-3, transmission shaft 7, housing 8, clutch reversing transmission mechanism 9, reversing bevel gear 9-1, first bevel gear 9-2, reversing sleeve 9-3, fork 9-4, propeller 10, tapered sleeve 11, support frame 12, steering drive wheel 13, steering driven wheel 14, second rotating bearing 15, second bevel gear 16, third bevel gear 17, tapered roller bearing 18, draft tube 19, skeleton oil seal 20, rubber ring 21, pressing plate 22. Specific embodiments

[0033] In order to better understand the above technical solution, the following will describe the above technical solution in detail in conjunction with the specification drawings and specific embodiments.

[0034] (Embodiment 1)

[0035] As Figures 1 to 3The shown anti - entanglement screw propulsion device for inland rivers includes a base 1, a diesel engine 2, a hydraulic motor 3, a pedestal 4, a main shaft 5, a sleeve 6, a transmission shaft 7, a housing 8, a clutch reversing transmission mechanism 9 and a propeller 10. Among them, the base 1 is fixedly installed on the ship bottom plate, the diesel engine 2, the hydraulic motor 3 and the pedestal 4 are all fixedly installed on the base 1. The main shaft 5 is horizontally arranged, with its left end fixedly connected to the output end of the diesel engine 2, and its right end passing through the pedestal 4 and rotatably installed on the pedestal 4. The sleeve 6 is arranged below the pedestal 4 and rotatably installed at the bottom of the base 1, with its upper end drivingly connected to the hydraulic motor 3 and its lower end fixedly connected to the housing 8. The propeller 10 is rotatably and sealedly installed on the housing 8 in the horizontal direction. By driving the sleeve 6 to rotate through the hydraulic motor 3, the propeller 10 can rotate 360° without dead angle, thus rotating more effectively in waters such as inland rivers, solving problems such as difficult turning, easy entanglement and difficult steering. The transmission shaft 7 is perpendicular to the main shaft 5 and coaxially rotatably installed in the sleeve 6, with its upper end connected to the main shaft through the clutch reversing transmission mechanism 9 and its lower end drivingly connected to the propeller 10. Thus, the propeller 10 is directly driven to rotate by the diesel engine 2, and the forward and reverse rotation of the propeller 10 is switched through the clutch reversing transmission mechanism 9. In case of an emergency, it can quickly shift gears or reverse. Compared with the traditional method of realizing the forward and reverse rotation switching of the motor and the propeller by changing the oil circuit through a control valve, the structure is more concise and the action response is immediate.

[0036] Specifically, a taper sleeve 11 is provided between the main shaft 5 and the output end of the diesel engine 2 and fixedly connected through the taper sleeve 11, which is convenient for disassembly and later maintenance. A support frame 12 fixedly installed on the base 1 is provided on the side of the pedestal 4. The hydraulic motor 3 is fixedly installed on the top of the support frame 12, and its output shaft is vertically downward and coaxially fixedly connected with a steering driving wheel 13. The sleeve 6 includes a first connecting pipe 6 - 1, a second connecting pipe 6 - 2 and a third connecting pipe 6 - 3 coaxially fixedly connected. The housing 8 is fixedly installed at the lower end of the third connecting pipe 6 - 3. An integrally formed annular mounting table 1 - 1 is provided on the base 1. The upper end of the first connecting pipe 6 - 1 is coaxially fixedly connected with a steering driven wheel 14 meshing with the steering driving wheel 13, and a first rotating bearing is axially limited between the steering driven wheel 14 and the annular mounting table 1 - 1, thus realizing the rotational connection between the sleeve 6 and the base 1. By driving the steering driving wheel 13 to rotate through the hydraulic motor 3, the rotation of the sleeve 6 is realized through the steering driven wheel 14. The transmission is reliable, efficient and the structure is compact, which is conducive to the miniaturization development of the device. The sleeve 6 is assembled by multiple connecting pipes, which is convenient for transportation and the installation of internal structures.

[0037] Second rotating bearings 15 are provided between the transmission shaft 7 and the sleeve 6 near the upper and lower ends, which can not only realize the rotational connection, but also ensure the coaxiality of the rotation of the transmission shaft 7, avoid slight deviation at both ends resulting in transmission jamming, and improve the stability of the transmission.

[0038] The clutch reversing transmission mechanism 9 includes a reversing bevel gear 9-1, a first bevel gear 9-2, a reversing sleeve 9-3, and a shift fork 9-4. Two reversing bevel gears 9-1 are provided and arranged opposite each other. Both reversing bevel gears 9-1 are rotatably mounted on the main shaft 5 and mesh with the first bevel gear 9-2. The first bevel gear 9-2 is coaxially fixedly mounted on the top of the transmission shaft 7. The main shaft 5 is provided with an outwardly protruding connecting key 5-1. The inner ring of the reversing sleeve 9-3 is provided with a keyway that runs axially and adapts to the connecting key 5-1. The reversing sleeve 9-3 is coaxially sleeved on the main shaft 5, located between the two reversing bevel gears 9-1. The connecting key 5-1 cooperates with the keyway to enable it to slide axially and be fixed radially on the main shaft 5.

[0039] The bottom of the shift fork 9-4 is provided with an annular portion that is coaxially connected to the outer circumference of the reversing sleeve 9-3. The middle portion is rotatably mounted on the top of the base 4, and the top portion extends upward. Both ends of the reversing sleeve 9-3 and the opposite ends of the reversing bevel gears are equipped with mutually compatible clutch plates. By moving the shift fork 9-4, the reversing sleeve 9-3 is driven to move left and right along the main shaft 5, thereby achieving the reversing sleeve 9-3 being fixedly connected to the reversing bevel gears 9-1 on both sides of the clutch plate, thereby achieving the circumferential connection of the reversing bevel gears 9-1 on both sides to the driving shaft 5, thereby driving the first bevel gear 9-2 to rotate forward or reverse. The lower end of the transmission shaft 7 is coaxially connected to the second bevel gear 16. The rotating shaft of the propeller 10 is coaxially connected to the third bevel gear 17 that meshes with the second bevel gear 16. This allows the diesel engine 2 to drive the propeller 10 to rotate, and the clutch reversing transmission mechanism 9 to achieve rapid switching of the propeller's rotation direction.

[0040] The rotating shaft of the propeller 10 is coaxially connected to the housing 8, with tapered roller bearings 18 positioned opposite each other. This provides a compact structure and strong load-bearing capacity. A flow guide 19, which covers the blades of the propeller 10, is coaxially fixed to the housing 8. A skeleton oil seal 20 is installed between the flow guide 19 and the rotating shaft of the propeller 10. A rubber ring 21 and a pressure plate 22 are positioned on the outer sides of the skeleton oil seal 20. The addition of the flow guide 19 effectively protects the propeller 10, preventing entanglement and stone collisions.

[0041] In the present invention, the diesel engine 2 directly drives the propeller 10 to rotate via the main shaft 5 and the transmission shaft 7, and a clutch reversing transmission mechanism 9 is added between the main shaft 5 and the transmission shaft 7, so as to realize the forward and reverse switching of the propeller 10. Compared with the traditional method of realizing the forward and reverse switching of the motor and propeller by changing the oil circuit by a control valve, the utility model has a simpler structure and an immediate action response. At the same time, the hydraulic motor 3 drives the casing 6 to rotate 360 degrees. Compared with the traditional structure, the rudder device is omitted. The overall structure is compact and more suitable for use in inland ships with smaller space, which is convenient for solving the problems of difficult U-turn, propeller entanglement and difficult steering.

[0042] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-twisting screw propulsion device for inland rivers, characterized in that: It includes a base fixedly installed on the bottom plate of the ship. A diesel engine, a hydraulic motor and a base are fixedly arranged on the base. The output end of the diesel engine is coaxially and fixedly connected with a main shaft. The main shaft is rotatably installed on the base. A sleeve rotatably installed at the bottom of the base is arranged below the base. A transmission shaft perpendicular to the main shaft is coaxially and rotatably arranged in the sleeve. The upper end is drivingly connected with the hydraulic motor, and the lower end is fixedly connected with a housing. A clutch reversing transmission mechanism is connected between the upper end of the transmission shaft and the main shaft. The lower end is drivingly connected with a propeller rotatably and sealedly installed on the housing in the horizontal direction. The sleeve is adapted to make a 360° rotation driven by the hydraulic motor. The propeller is adapted to make a forward and reverse rotation through the clutch reversing transmission mechanism under the action of the diesel engine.

2. The spiral propulsion device for preventing entanglement in inland rivers according to claim 1, characterized in that: The clutch reversing transmission mechanism includes reversing bevel gears rotatably installed on the main shaft and arranged oppositely, and a first bevel gear coaxially and fixedly installed at the top of the transmission shaft and meshing with both bevel gears. A reversing sleeve axially sliding and radially fixedly installed on the main shaft is arranged between the two reversing bevel gears. A fork extending to the top of the base is rotatably connected to the outer peripheral surface of the reversing sleeve. Clutch plates adapted to each other are arranged at both ends and at the opposite ends of the reversing bevel gears. The middle of the fork is rotatably installed on the top of the base.

3. The spiral propulsion device for preventing entanglement in inland rivers according to claim 2, characterized in that: A connecting key protruding outward is arranged on the main shaft. A key groove penetrating axially and adapted to the connecting key is arranged in the inner ring of the reversing sleeve.

4. A spiral propulsion device for preventing entanglement in inland rivers according to claim 1, characterized in that: A support frame fixedly installed on the base is arranged on the side of the base. The hydraulic motor is fixedly installed on the top of the support frame, and the output shaft is arranged vertically downward and coaxially fixedly connected with a steering driving wheel. A steering driven wheel meshing with the steering driving wheel is coaxially fixedly connected to the top of the sleeve.

5. A spiral propulsion device for preventing entanglement in inland rivers according to claim 4, characterized in that: The sleeve includes a first connecting pipe, a second connecting pipe and a third connecting pipe coaxially fixedly connected. An annular mounting table is arranged on the base. The upper end of the first connecting pipe is fixedly connected with the steering driven wheel and axially limited and connected with a first rotating bearing between the annular mounting table. The housing is fixedly installed at the lower end of the third connecting pipe.

6. The spiral propulsion device for preventing entanglement in inland rivers according to claim 1, characterized in that: Second rotating bearings are arranged between the transmission shaft and the sleeve near the upper and lower ends.

7. A spiral propulsion device for preventing entanglement in inland rivers according to claim 1, characterized in that: A taper sleeve is arranged between the main shaft and the output end of the diesel engine and fixedly connected through the taper sleeve.

8. The spiral propulsion device for preventing entanglement in inland rivers according to claim 1, characterized in that: A second bevel gear is coaxially fixedly connected to the lower end of the transmission shaft. A third bevel gear meshing with the second bevel gear is coaxially fixedly connected to the rotating shaft of the propeller.

9. The spiral propulsion device for preventing entanglement in inland rivers according to claim 1, characterized in that: Relatively arranged tapered roller bearings are coaxially connected between the rotating shaft of the propeller and the housing.

10. A spiral propulsion device for preventing entanglement in inland rivers according to claim 1, characterized in that: A guide pipe covering the blades of the propeller is coaxially fixedly connected to the housing. A skeleton oil seal is arranged between the guide pipe and the rotating shaft of the propeller. A rubber ring and a pressing plate are sequentially arranged outside the skeleton oil seal.

Images