Impact-resistant pod propelling device for ice region navigation

Abstract

The invention discloses an anti-impact pod propelling device for ice region navigation, which comprises a cabin body connected with a ship body, a propeller, a propeller body and a driving device, the propelling assembly is partially arranged in the cabin body and used for providing propelling force; the first damping assembly is arranged at the front end of the cabin body and used for relieving impact force in the sailing direction; the second damping assembly is arranged in the cabin body and used for relieving impact force borne by the side wall of the cabin body. The device can buffer the impact force of ice blocks on the front side and the side edge during navigation, the impact force on components in the pod is reduced, and the operation stability of the pod is effectively protected. The multi-layer and multi-direction buffer parts are arranged in the pod, energy can be absorbed to the maximum extent through multi-stage gradual relieving, the pressure value borne by a single part is reduced, and the service life of the buffer parts is prolonged. The first damping assembly and the second damping assembly arranged on the device can convert and counteract impact force mutually, and the damping effect is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pod-type propulsion devices, and in particular relates to an impact-resistant pod propulsion device for navigation in ice areas. Background Art

[0002] Pod propulsion is a ship propulsion device that separates the propulsion equipment from the traditional built-in hull system or engine system. It integrates the propulsion and steering functions through a suspended pod. The built-in drive motor module, propeller module, horizontal rotation mechanism and cooling device provide better maneuverability for the ship's navigation.

[0003] At present, pod propulsion is used in the prior art, such as patent document with patent number CN219215358U discloses a pod propulsion, and patent document with patent number CN111605692B discloses a pod propulsion. No impact damping assembly is arranged inside the above pod propulsion. Since a variety of electrical components are integrated inside the pod propulsion, if the ship sails in the ice area, it is easy to cause damage to the internal components by the impact of heavy ice, so that the internal components need to be repaired or replaced. On the one hand, the inspection and maintenance of the components will consume a lot of time and manpower to a certain extent, causing inconvenience to the survey and investigation work; on the other hand, the replacement and inspection of the components will also incur additional expenses. Therefore, a T-type pod propulsion for ships sailing in ice areas is proposed. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to solve the problems in the above-mentioned prior art and to provide an impact-resistant pod propulsion device for navigation in ice areas, which can effectively alleviate the damage to the electronic components inside the pod propulsion device caused by the vibration caused by external impact, and at the same time can decompose the ice in the forward direction to avoid secondary impact on the pod propulsion device when the ice moves backward.

[0005] The present invention is implemented by the following technical solutions: A shock-resistant pod propulsion device for ice-area navigation, comprising: A cabin connected to the hull; A propulsion assembly, partly arranged inside the cabin, for providing a driving force, the propulsion assembly comprises a motor, a rotating shaft and a propeller, the motor is arranged inside the cabin, the rotating shaft is connected to the output end of the motor, one end of the rotating shaft away from the motor passes through the cabin, and the end of the rotating shaft passing through the motor is sleeved with a propeller; A control component is arranged inside the cabin and is used to send control instructions, and the control component is connected to the motor by telecommunication; A first shock absorbing assembly is arranged at the front end of the cabin body, and is used to alleviate the impact force in the navigation direction. The first shock absorbing assembly includes an impact plate, a primary buffer assembly and a secondary buffer assembly. The impact plate is horizontally slidably arranged at the front end of the cabin body, and the primary buffer assembly is slidably arranged inside the cabin body. One end of the primary buffer assembly is connected to the impact plate, and the other end of the primary buffer assembly is connected to the secondary buffer assembly. The second shock-absorbing assembly is arranged inside the cabin and is used to alleviate the impact force on the side wall of the cabin. The second shock-absorbing assembly includes multiple hinges, two first shock-absorbing pads, and two rebound members. One end of multiple hinges is connected to the secondary buffer assembly, and the other end of multiple hinges is hinged to the first shock-absorbing pad. The two first shock-absorbing pads are symmetrically arranged on the inner wall of the cabin, and the two rebound members are arranged on both sides of the motor. The rebound member is slidably connected to the motor, and each of the rebound members is connected to the two first shock-absorbing pads. The rebound member can drive the two first shock-absorbing pads to move synchronously in the axial direction of the rebound member.

[0006] To optimize the above technical solutions, the specific measures taken also include: Furthermore, a shell is provided on the outside of the motor, a mounting seat is provided under the shell, the bottom end of the mounting seat is provided at the bottom of the cabin, the output shaft of the motor passes through the shell and is connected to the rotating shaft, two support frames are symmetrically provided at the top and bottom ends of the shell, and slide rails are provided at the ends of the two support frames facing away from each other, the direction of the slide rails points to the two first shock-absorbing pads, and the rebound member is slidably provided in the slide rails.

[0007] Furthermore, a second shock-absorbing pad is provided on the inner wall of the cabin, the first shock-absorbing pad abuts against the second shock-absorbing pad, the second shock-absorbing pad is attached to the inner wall of the cabin, the first shock-absorbing pad is an arc-shaped structure, and the arc curvature of the first shock-absorbing pad is the same as the arc curvature of the side wall of the cabin.

[0008] Furthermore, the rebound member includes an air cavity, which is slidably arranged in the slide rail and filled with gas. The air cavity is slidably arranged with piston members at both ends of the air cavity toward the two first shock-absorbing pads, and the ends of the piston members away from each other are respectively connected to the two first shock-absorbing pads. Under the action of the gas, the two piston members press the two first shock-absorbing pads against the second shock-absorbing pad. A connecting part is arranged at the upper end of the cabin, and the upper end of the connecting part is connected to the hull. An air pump is arranged in the connecting part, and the air pump is connected to the air cavity pipeline.

[0009] Furthermore, the piston member includes a connecting rod and a piston column, one end of the connecting rod is connected to the first shock-absorbing pad, and the other end of the connecting rod is connected to the piston column, and the piston column is slidably arranged inside the air cavity.

[0010] Furthermore, a plurality of hinges are provided on the side walls of the two first shock-absorbing pads that are close to each other, and the hinges include a first hinge rod, a second hinge rod and a third hinge rod, the first hinge rod and the second hinge rod are symmetrically arranged, one end of the first hinge rod and the second hinge rod are respectively hinged to the first shock-absorbing pads at positions symmetrical to each other, the other ends of the first hinge rod and the second hinge rod are hinged to the third hinge rod, and the third hinge rod is connected to the secondary buffer assembly.

[0011] Further, the secondary buffer assembly includes a front-stage buffer and a rear-stage buffer, the front-stage buffer includes a buffer cavity, a forward buffer, and a reverse buffer, a rolling member is rotatably arranged in the buffer cavity, the forward buffer and the reverse buffer are respectively slidably arranged on both sides of the buffer cavity, the forward buffer and the reverse buffer are both rotatably connected to the rolling member, the movement directions of the forward buffer and the reverse buffer are opposite, the end of the forward buffer away from the buffer cavity is connected to the primary buffer assembly, the end of the reverse buffer away from the buffer cavity is connected to the adjacent third hinged rod, the rear-stage buffer includes a buffer rod, a buffer seat and a buffer spring, the buffer seat is arranged on the side wall of the cabin, a buffer groove is opened on the buffer seat, the buffer rod is slidably arranged in the buffer groove, the buffer spring is arranged between the buffer groove and the buffer rod, and the side of the buffer rod away from the buffer spring is connected to the adjacent third hinged rod.

[0012] Furthermore, the buffer cavity is provided with connecting ports at both ends near the positive buffer member and the reverse buffer member, the positive buffer member includes a hollow rectangular cavity with an open side wall, a lower tooth plate is provided on the inner lower surface of the rectangular cavity, a connecting groove is provided at one end of the rectangular cavity near the reverse buffer member, the reverse buffer member is an L-shaped connecting plate, the long side of the L-shaped connecting plate is horizontally arranged, the long side of the L-shaped connecting plate is slidably inserted in the connecting groove, a shock-absorbing spring is provided below the L-shaped connecting plate, one end of the shock-absorbing spring is connected to the side wall of the rectangular cavity near the L-shaped connecting plate, the other end of the shock-absorbing spring is connected to the short side of the L-shaped connecting plate, an upper tooth plate is provided on the side of the long side of the L-shaped connecting plate near the shock-absorbing spring, the rolling member adopts a rolling gear, the lower tooth plate and the upper tooth plate are both meshed with the rolling gear, the short side of the L-shaped connecting plate is connected to the third hinged rod on the side away from the shock-absorbing spring, and the side wall of the rectangular cavity away from the L-shaped connecting plate is connected to the primary buffer assembly.

[0013] Furthermore, the primary buffer assembly includes a guide rod, a piston disc and a compression spring, a collision zone is provided at the front end of the cabin, the collision zone is a frame-type structure with an opening at the front end, a partition is provided between the collision zone and the cabin, one end of the guide rod is connected to the rectangular cavity, the other end of the guide rod is connected to the piston disc, the piston disc is slidably arranged in the collision zone, a collision disc is provided at the front end of the collision zone, the collision disc is in an outwardly protruding arc-shaped structure, a compression spring is provided between the collision disc and the piston disc, a telescopic rod is provided inside the compression spring, a bellows is provided on the outside of the compression spring, a sealing layer is provided on the side wall of the collision disc and the collision zone, and the sealing layer is made of elastic material.

[0014] Furthermore, it also includes an icebreaking assembly, which includes an icebreaking frame, an anti-collision beam and an anti-collision strip. The icebreaking frame is arranged below the impact area, and the icebreaking frame includes a plurality of icebreaking pieces arranged at intervals. The anti-collision beam is arranged above the cabin and located at the front end of the connection between the cabin and the hull, and the anti-collision strip is arranged on the side wall of the cabin.

[0015] Beneficial effects of the present invention: Compared with the prior art, the present invention discloses an impact-resistant pod propulsion device for navigation in ice areas, which can buffer the impact force of ice blocks in front and on the sides of the pod, reduce the impact force on the internal components of the pod, and effectively protect the operating stability of the pod.

[0016] The device is provided with multi-layer, multi-directional buffer components in the pod, which can absorb energy to the maximum extent through multi-level gradual relief, reduce the pressure value borne by a single component, and increase the service life of the buffer components.

[0017] The first shock absorbing component and the second shock absorbing component provided in the device can convert and offset the impact forces to each other, thereby further improving the shock absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The schematic diagram is a structural diagram of an impact-resistant pod propulsion device used for navigation in ice areas.

[0019] Figure 2 for Figure 1 Partial exploded view.

[0020] Figure 3 for Figure 1 Top view of the .

[0021] Figure 4 for Figure 3 Sectional view along line AA.

[0022] Figure 5 for Figure 3 Sectional view along line BB.

[0023] Figure 6 for Figure 5 Schematic diagram of state 2.

[0024] Figure 7 It is a partial structural schematic diagram of the second shock absorbing assembly.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the second shock absorbing assembly.

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of the secondary buffer component.

[0027] Fig.10 for Fig. 9 sectional view of .

[0028] Fig.11 for Fig. 9 Exploded diagram.

[0029] The accompanying drawings are marked as follows: Cabin 10, connecting part 11, balance chamber 12, first pipeline 13, second pipeline 14, one-way valve 15, electric compression rod 16, pressure sensor 17, propulsion assembly 20, motor 21, rotating shaft 22, propeller 23, shell 24, mounting seat 25, support frame 26, slide rail 27, control assembly 30, first shock absorbing assembly 40, impact plate 41, primary buffer assembly 42, guide rod 421, piston plate 422, compression spring 423, telescopic rod 424, bellows 425, sealing layer 426, secondary buffer assembly 43, buffer chamber 431, positive buffer 432, rectangular cavity 4321, lower gear plate 4322, connecting groove 4323, reverse buffer part 433, L-shaped connecting plate 4331, shock absorbing spring 4332, upper tooth plate 4333, rolling member 434, buffer rod 435, buffer seat 436, buffer spring 437, buffer groove 438, second shock absorbing assembly 50, hinge 51, first hinge rod 511, second hinge rod 512, third hinge rod 513, first shock absorbing pad 52, rebound part 53, air cavity 531, connecting rod 532, piston column 533, second shock absorbing pad 60, impact area 70, partition 71, rib 72, ice breaking assembly 80, ice breaking rack 81, anti-collision beam 82, anti-collision strip 83. DETAILED DESCRIPTION

[0030] In order to illustrate the technical solution and working principle of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0031] The present invention provides Figure 1-11The illustrated embodiment shows an impact-resistant pod propulsion device for navigation in ice areas, comprising a cabin 10, a propulsion assembly 20, a control assembly 30, a first shock-absorbing assembly 40 and a second shock-absorbing assembly 50; the cabin 10 is connected to the hull, and the propulsion assembly 20 is partially arranged inside the cabin 10 for providing a propulsion force; the control assembly 30 is arranged inside the cabin 10 for sending a control command; the first shock-absorbing assembly 40 is arranged at the front end of the cabin 10 for alleviating the impact force in the navigation direction; the second shock-absorbing assembly 50 is arranged inside the cabin 10 for alleviating the impact force on the side wall of the cabin 10.

[0032] The hull 10 is an elliptical structure, and the side walls of the hull 10 adopt a streamlined structure to reduce the resistance to navigation. A connecting portion 11 is provided at the upper end of the hull 10, and the upper end of the connecting portion 11 is connected to the steering device inside the hull, so as to facilitate the control of the steering of the propulsion device.

[0033] The propulsion assembly 20 includes a motor 21, a rotating shaft 22 and a propeller 23. The motor 21 is arranged inside the cabin 10. The rotating shaft 22 is connected to the output end of the motor 21. The end of the rotating shaft 22 away from the motor 21 passes through the cabin 10, and the propeller 23 is sleeved on the end of the rotating shaft 22 passing through the motor 21.

[0034] In order to fix and protect the motor 21, a housing 24 is provided outside the motor 21, a mounting seat 25 is provided below the housing 24, and the bottom end of the mounting seat 25 is provided at the bottom of the cabin 10. At the same time, a control component 30 is also provided inside the housing 24, and the control component 30 is used to receive external control instructions, and then send the control instructions to the motor 21. The control component 30 is electrically connected to the motor 21, and the operation of the motor 21 is adjusted by the control component 30 to realize the driving of the cabin 10. The control component 30 adopts a conventional control component 30, which is not specifically limited in this embodiment.

[0035] In order to protect the working stability of the motor 21 and the control system inside the cabin 10 and prevent the pod propulsion device from being hit by ice during operation and causing large vibrations to damage the motor 21 and the control system, a first shock absorbing assembly 40 and a second shock absorbing assembly 50 are arranged inside the cabin 10.

[0036] The second shock absorbing assembly 50 includes a plurality of hinges 51, two first shock absorbing pads 52, and two rebound members 53. The two first shock absorbing pads 52 are arranged on both sides of the shell 24, and the two rebound members 53 are arranged between the two first shock absorbing pads 52 for driving the two first shock absorbing pads 52 to move in the horizontal direction. The plurality of hinges 51 are connected to the two first shock absorbing pads 52 for driving the two first shock absorbing pads 52 to move closer to or away from each other.

[0037] One end of each hinge 51 is hinged to the first shock absorbing assembly 40, and the other end of each hinge 51 is hinged to the side walls of the two first shock absorbing pads 52 that are close to each other. The two first shock absorbing pads 52 are symmetrically arranged on the inner wall of the cabin 10, and multiple hinges 51 are respectively connected to the surrounding side walls of the first shock absorbing pads 52, and the connection between each hinge 51 and the two first shock absorbing pads 52 is symmetrical to each other.

[0038] Each hinge 51 includes a first hinge rod 511, a second hinge rod 512 and a third hinge rod 513. The first hinge rod 511 and the second hinge rod 512 are symmetrically arranged. One end of the first hinge rod 511 and the second hinge rod 512 are respectively hinged to the first shock-absorbing pad 52 at mutually symmetrical positions. The other ends of the first hinge rod 511 and the second hinge rod 512 are both hinged to the third hinge rod 513. The third hinge rod 513 is hinged to the first shock-absorbing assembly 40. The first hinge rod 511 and the second hinge rod 512 form a V-shaped structure. The relative movement of the two first shock-absorbing pads 52 is achieved by the first hinge rod 511 and the second hinge rod 512 moving closer to or farther from each other. The symmetrical connection mode of the hinge 51 and the V-shaped structure of a single hinge 51 can ensure that the hinge 51 is more stable when driving the two first shock-absorbing pads 52 to move. At the same time, the motor 21 and the control system are arranged between the two first shock-absorbing pads 52, so as to reduce the damage to the motor 21 and the control system caused by the transmission of vibration.

[0039] In order to alleviate the external impact force, two resilient members 53 are arranged between the two first shock-absorbing pads 52. The two resilient members 53 are arranged on both sides of the motor 21. The resilient members 53 are slidably connected to the motor 21. The two resilient members 53 are both connected to the two first shock-absorbing pads 52. The resilient members 53 can drive the two first shock-absorbing pads 52 to move synchronously in the axial direction of the resilient members 53. In order to better protect the motor 21 from the impact force, two support frames 26 are symmetrically arranged at the top and bottom ends of the housing 24. The two support frames 26 are each provided with a slide rail 27 at one end that is away from each other. The direction of the slide rail 27 points to the two first shock-absorbing pads 52. The resilient member 53 is slidably arranged in the slide rail 27. The support frame 26 provides support force to the resilient member 53 on the one hand, and the slide rail 27 provides guidance to the moving direction of the resilient member 53 on the other hand, so as to ensure that the resilient member 53 maintains stability in the moving direction.

[0040] The resilient member 53 includes an air cavity 531, which is slidably disposed in the slide rail 27. The air cavity 531 is filled with gas. The air cavity 531 is slidably disposed with piston members at both ends thereof facing the two first shock-absorbing pads 52. The ends of the piston members that are away from each other are respectively connected to the two first shock-absorbing pads 52. Under the action of the gas, the two piston members press the two first shock-absorbing pads 52 against the second shock-absorbing pad 60. The piston member includes a connecting rod 532 and a piston column 533. One end of the connecting rod 532 is connected to the first shock-absorbing pad 52, and the other end of the connecting rod 532 is connected to the piston column 533. The piston column 533 is slidably disposed in the air cavity 531. In the initial state, the piston column 533 is located at the edge positions on both sides of the air cavity 531.

[0041] In order to better ensure the pressure balance in the air cavity 531, a balance cavity 12 is provided in the connection part 11 above the cabin 10, and the balance cavity is provided with an air inlet and an air outlet. Each air inlet is connected to the two air cavities 531 through two first pipes 13, and each air outlet is connected to the two air cavities 531 through two second pipes 14. A one-way valve 15 is provided on the first pipe 13 and the second pipe 14. Each air cavity 531 forms a circulation loop with the balance cavity 12, and the pressure value in a circulation loop is a constant value. An electric compression rod 16 is provided at the top of the balance cavity 12, and the electric compression rod 16 is electrically connected to the control component 30. A pressure sensor 17 is provided on the lower end side wall of the balance cavity 12, and the pressure change is detected by the pressure sensor 17. The state of the pressure in the air cavity 531 can be judged by the pressure value range detected by the pressure sensor 17, so as to ensure the stability and reliability of the rebound member 53. At the same time, the electric compression rod 16 can be adjusted according to the actual situation to control the pressure value in the balance cavity 12.

[0042] At the same time, a second shock-absorbing pad 60 is provided on the inner wall of the cabin 10, the first shock-absorbing pad 52 abuts against the second shock-absorbing pad 60, and the second shock-absorbing pad 60 is attached to the inner wall of the cabin 10. The first shock-absorbing pad 52 is an arc-shaped structure, and the arc curvature of the first shock-absorbing pad 52 is the same as the arc curvature of the side wall of the cabin 10. The first shock-absorbing pad 52 and the second shock-absorbing pad 60 both use a frame, and the frame is made of an elastic material, such as a polypropylene resin composition, which is not specifically limited in this embodiment. Rubber pads are filled inside and outside the frame, and the frame can ensure that the first shock-absorbing pad 52 and the second shock-absorbing pad 60 have a certain structural strength, will not be easily deformed, and also have a certain elasticity.

[0043] When the side wall of the cabin 10 is subjected to impact force, the movement process of the second shock absorbing assembly 50 is as follows: When the impact force is small and is located around the first shock absorbing pad 52, the impact force will be attenuated in turn through the second shock absorbing pad 60 and the first shock absorbing pad 52, and then the impact force will drive the first shock absorbing pad 52 to separate from the second shock absorbing pad 60. At this time, the first shock absorbing pad 52 on the impacted side will move to the other side. When the first shock absorbing pad 52 moves, it will drive the nearby first hinge rod 511 or second hinge rod 512. Through the mutual movement between the first hinge rod 511 and the second hinge rod 512, the third hinge rod 513 is pushed to drive the secondary buffer assembly 43 to move, and the unrelieved impact force is transmitted to the first shock absorbing assembly 40, and the impact force is eliminated by the first shock absorbing assembly 40. When the vibration impact is eliminated, the first hinge rod 511 and the second hinge rod 512 will squeeze the first shock absorbing pad 52 against the second shock absorbing pad 60 again under the action of the first shock absorbing assembly 40.

[0044] When the impact force is small and is located in the middle of the first shock-absorbing pad 52, the impact force at this time will also be attenuated in turn through the second shock-absorbing pad 60 and the first shock-absorbing pad 52, and then the impact force will drive the first shock-absorbing pad 52 here to separate from the second shock-absorbing pad 60. At this time, the first shock-absorbing pad 52 on the impacted side will move to the other side. When moving, the first shock-absorbing pad 52 will drive the nearby connecting rod 532 to move toward the side close to the air cavity 531. At this time, the first shock-absorbing pad 52 will drive the rebound member 53 to move as a whole toward the first shock-absorbing pad 52 on the other side, so that the first shock-absorbing pad 52 on the other side is pressed tightly against the second shock-absorbing pad 60, and then the connecting rod 532 on the side that is first subjected to force will compress the piston column 533 to squeeze the gas inside the air cavity 531, and eliminate the impact force by squeezing the gas. When the impact force is eliminated, the piston column 533 will move in the opposite direction under the action of the gas, and the two first shock-absorbing pads 52 will be pressed against the second shock-absorbing pad 60 again.

[0045] When the impact force is large, the impact force will drive the entire first shock absorbing pad 52 to separate from the adjacent second shock absorbing pad 60, and then the first hinged rod 511 or the second hinged rod 512 around the first shock absorbing pad 52 will transfer the impact force to the first shock absorbing assembly 40 again, and the rebound member 53 will also perform compression shock absorption.

[0046] The pod will be subjected to impact force from the forward direction, therefore, a first shock absorbing assembly 40 is also provided at the front position of the pod, the first shock absorbing assembly 40 includes an impact plate 7251, a primary buffer assembly 42 and a secondary buffer assembly 43, the impact plate 7251 is provided at the front end of the pod body 10, the primary buffer assembly 42 is slidably provided inside the pod body 10, one end of the primary buffer assembly 42 is connected to the impact plate 7251, the other end of the primary buffer assembly 42 is connected to the secondary buffer assembly 43, and the secondary buffer assembly 43 is connected to the first hinge rod 511 and the second hinge rod 512.

[0047] The secondary buffer assembly 43 includes a front-stage buffer and a rear-stage buffer. The front-stage buffer is arranged at the front end of the movement direction of the cabin body 10. The front-stage buffer includes a buffer cavity 431, a forward buffer 432, and a reverse buffer 433. A rolling member 434 is arranged in the buffer cavity 431. The forward buffer 432 and the reverse buffer 433 are respectively slidably arranged on both sides of the buffer cavity 431. The forward buffer 432 and the reverse buffer 433 are both rotatably connected to the rolling member 434. The forward buffer 432 and the reverse buffer 433 have opposite movement directions. The end of the forward buffer 432 away from the buffer cavity 431 is connected to the primary buffer assembly 42, and the end of the reverse buffer 433 away from the buffer cavity 431 is connected to the third hinge rod 513.

[0048] Connecting ports are provided at both ends of the buffer cavity 431 close to the positive buffer member 432 and the reverse buffer member 433. The positive buffer member 432 includes a hollow rectangular cavity 4321 with an open side wall. A lower tooth plate 4322 is provided on the inner lower surface of the rectangular cavity 4321. A connecting groove 4323 is provided at one end of the rectangular cavity 4321 close to the reverse buffer member 433. The reverse buffer member 433 includes an L-shaped connecting plate 4331. The long side of the L-shaped connecting plate 4331 is horizontally arranged. The long side of the L-shaped connecting plate 4331 is slidably inserted in the connecting groove 4323. A shock absorbing spring 4332 is provided below the L-shaped connecting plate 4331. One end of the shock-absorbing spring 4332 is connected to the side wall of the rectangular cavity 4321 close to the L-shaped connecting plate 4331, and the other end of the shock-absorbing spring 4332 is connected to the short side of the L-shaped connecting plate 4331. An upper tooth plate 4333 is provided on the long side of the L-shaped connecting plate 4331 close to the shock-absorbing spring 4332. The rolling member 434 adopts a rolling gear, and the lower tooth plate 4322 and the upper tooth plate 4333 are both engaged with the rolling gear. The short side of the L-shaped connecting plate 4331 is connected to the third hinge rod 513 away from the shock-absorbing spring 4332, and the side wall of the rectangular cavity 4321 away from the L-shaped connecting plate 4331 is connected to the primary buffer assembly 42.

[0049] The front-stage buffer will be subjected to impact forces in two directions. The following describes the working process of the front-stage buffer from two directions: When the front-stage buffer is driven by the third hinged rod 513, the third hinged rod 513 will drive the L-shaped connecting plate 4331 to move closer, and then the L-shaped connecting plate 4331 will compress the shock-absorbing spring 4332. At the same time, the upper tooth plate 4333 on the L-shaped connecting plate 4331 will drive the rolling gear to rotate. When the rolling gear rotates, it will synchronously drive the lower tooth plate 4322 in the rectangular cavity 4321 to move in the opposite direction. The movement of the rectangular cavity 4321 will pull the first-stage buffer assembly 42, and the elastic force of the shock-absorbing spring 4332 will be used to offset the impact force. The impact force that has not been eliminated will be transmitted to the first-stage buffer assembly 42 for further buffering.

[0050] When the front-stage buffer is subjected to the impact force from the primary buffer assembly 42, the primary buffer assembly 42 will apply pressure driving force to the rectangular cavity 4321, and then the rectangular cavity 4321 will move toward the direction close to the buffer cavity 431. When the rectangular cavity 4321 moves, the lower tooth plate 4322 inside the rectangular cavity 4321 will drive the rolling gear to rotate. When the rolling gear rotates, it will synchronously drive the upper tooth plate 4333 to move in the opposite direction of the lower tooth plate 4322. When the lower tooth plate 4322 moves, it will synchronously drive the L-shaped connecting plate 4331 to move toward the direction close to the buffer cavity 431. At this time, the short side of the L-shaped connecting plate 4331 will compress the shock absorbing spring 4332, and the elastic force of the shock absorbing spring 4332 will be used to offset the impact force. When the shock absorbing spring 4332 is compressed to the upper limit of the stroke, the long side of the L-shaped connecting plate 4331 will abut against the inner side wall of the rectangular cavity 4321. By utilizing the stroke of the shock-absorbing spring 4332 and the structural connection relationship between the L-shaped connecting plate 4331 and the rectangular cavity 4321, a large impact force can be effectively blocked, while effectively ensuring the service life of the secondary buffer assembly 43.

[0051] The rear-stage buffer is arranged at the rear end of the movement direction of the cabin body 10, and the rear-stage buffer includes a buffer rod 435, a buffer seat 436 and a buffer spring 437. The buffer seat 436 is arranged on the side wall of the cabin body 10, and a buffer groove 438 is opened on the buffer seat 436. The buffer rod 435 is slidably arranged in the buffer groove 438. The buffer spring 437 is arranged between the buffer groove 438 and the buffer rod 435. The buffer rod 435 is connected to the first hinge rod 511 and the second hinge rod 512.

[0052] The working process of the rear buffer is: When the two first shock-absorbing pads 52 produce horizontal lateral movement due to the impact force of the side wall, the first hinge 51 and the second hinge 51 connecting the two first shock-absorbing pads 52 will move in a direction approaching each other. When the two first hinges 51 approach each other, they will drive the buffer rod 435 connected thereto to move in a direction away from the first shock-absorbing pads 52, thereby compressing the buffer spring 437 and using the elastic force of the buffer spring 437 to eliminate the impact force.

[0053] In order to reduce the buffering pressure of the secondary buffer assembly 43, a primary buffer assembly 42 is also arranged in front of the secondary buffer assembly 43. The primary buffer assembly 42 includes a guide rod 421, a piston disc 422 and a compression spring 423. An impact area 70 is arranged at the front end of the cabin 10. The impact area 70 is a frame-shaped structure with an open front end. A partition plate 71 is arranged between the impact area 70 and the cabin 10. One end of the guide rod 421 is connected to the rectangular cavity 4321, and the other end of the guide rod 421 is connected to the piston disc 422. The piston disc 423 is provided at the front end of the cabin 10. 22 is slidingly arranged in the impact area 70, an impact disk 7251 is arranged at the front end of the impact area 70, a compression spring 423 is arranged between the impact disk 7251 and the piston disk 422, a telescopic rod 424 is arranged inside the compression spring 423, a bellows 425 is arranged on the outside of the compression spring 423, a sealing layer 426 is arranged on the side wall of the impact disk 7251 and the impact area 70, the sealing layer 426 is made of waterproof material, the impact disk 7251 is a protruding arc structure, and a rib 73 is also arranged on the outer surface of the impact disk.

[0054] In the forward direction of navigation, the vehicle will encounter the impact or collision of ice or glaciers. At this time, the ice will first impact the impact plate 7251, and then the impact plate 7251 will shrink away from the direction of navigation, and then squeeze the compression spring 423 to initially relieve the impact force. Then the compression spring 423 will drive the piston plate 422 to continue to move toward the direction close to the partition 71, and the guide rod 421 connected to the piston plate 422 will move synchronously and compress the rectangular cavity 4321, thereby transmitting the impact force that the first-level buffer assembly 42 has not eliminated to the second-level buffer assembly 43. In order to protect the compression spring 423, a boss is provided inside the impact zone near the secondary buffer assembly 43, and the boss is located between the compression spring 423 and the piston disc 422. When the impact disc 7251 receives the impact force, it will squeeze the compression spring 423, and then the side of the impact disc 7251 will abut against the side wall of the impact zone, limiting the compression disc 7251 from continuing to squeeze the compression spring 423. When the ice cube separates from the impact disc 7251, at this time, under the action of the rebound force of the compression spring 423, the piston disc 422 will move toward the direction close to the compression disc 7251, and the boss is used to limit the displacement of the piston disc 422, thereby effectively protecting the compression spring 423.

[0055] In order to prevent the pod from being impacted by ice cubes above and below, an ice-breaking assembly 80 is further arranged above and below the pod 10. The ice-breaking assembly 80 includes an ice-breaking rack 81, an anti-collision beam 82 and an anti-collision strip 83. The ice-breaking rack 81 is arranged below the impact area 70. The ice-breaking rack 81 includes a plurality of ice-breaking pieces arranged at intervals. The anti-collision beam 82 is arranged above the pod 10 and at the front end of the connection between the pod 10 and the hull 10. The anti-collision strip 83 is arranged on the side wall of the pod 10. When ice cubes hit the pod above or below, the ice-breaking rack 81 can cut the ice cubes into several small pieces of broken ice cubes by using the high-speed running speed, thereby reducing the damage to the pod. The anti-collision beam 82 can prevent the ice cubes from damaging the connection between the pod and the hull 10. At the same time, the ice cubes hitting the impact plate 7251 will slide around because the outer surface of the impact plate 7251 is an arc-shaped structure protruding outward, and will not gather on the impact plate 7251 for a long time. Finally, the anti-collision strip 83 on the side wall of the cabin 10 also provides a layer of protection for the side wall of the cabin 10 . At the same time, the anti-collision strip 83 also serves as a diversion device to isolate the ice cubes from the cabin 10 .

[0056] After the ice cube impacts the impact plate 7251, when the impact plate 7251 is compressed and moved to abut against the side wall of the impact area, the ice cube will come into contact with the ice breaking rack 81 and the anti-collision beam 82, thereby cutting and breaking the ice cube.

[0057] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. An impact-resistant pod propulsion device for navigation in ice areas, characterized in that: include, A cabin connected to the hull; A propulsion assembly, partly arranged inside the cabin, for providing a driving force, the propulsion assembly comprises a motor, a rotating shaft and a propeller, the motor is arranged inside the cabin, the rotating shaft is connected to the output end of the motor, one end of the rotating shaft away from the motor passes through the cabin, and the end of the rotating shaft passing through the motor is sleeved with a propeller; A first shock absorbing assembly is arranged at the front end of the cabin body, and is used to alleviate the impact force in the navigation direction. The first shock absorbing assembly includes an impact plate, a primary buffer assembly and a secondary buffer assembly. The impact plate is horizontally slidably arranged at the front end of the cabin body, and the primary buffer assembly is slidably arranged inside the cabin body. One end of the primary buffer assembly is connected to the impact plate, and the other end of the primary buffer assembly is connected to the secondary buffer assembly. The second shock-absorbing assembly is arranged inside the cabin and is used to alleviate the impact force on the side wall of the cabin. The second shock-absorbing assembly includes multiple hinges, two first shock-absorbing pads, and two rebound members. One end of multiple hinges is connected to the secondary buffer assembly, and the other end of multiple hinges is hinged to the first shock-absorbing pad. The two first shock-absorbing pads are symmetrically arranged on the inner wall of the cabin, and the two rebound members are arranged on both sides of the motor. The rebound members are slidably connected to the motor, and each of the rebound members is connected to the two first shock-absorbing pads. The rebound member can drive the two first shock-absorbing pads to move synchronously in the two axial directions of the rebound member.

2. The impact-resistant pod propulsion device for ice navigation according to claim 1 is characterized in that: A shell is provided on the outside of the motor, a mounting seat is provided under the shell, the bottom end of the mounting seat is provided at the bottom of the cabin, the output shaft of the motor passes through the shell and is connected to the rotating shaft, two support frames are symmetrically provided at the top and bottom ends of the shell, and slide rails are provided at the ends of the two support frames facing away from each other, the direction of the slide rails points to the two first shock-absorbing pads, and the rebound member is slidably provided in the slide rails.

3. The impact-resistant pod propulsion device for ice navigation according to claim 2 is characterized in that: The inner wall of the cabin is provided with a second shock-absorbing pad, the first shock-absorbing pad abuts against the second shock-absorbing pad, the second shock-absorbing pad is attached to the inner wall of the cabin, the first shock-absorbing pad is an arc-shaped structure, and the arc curvature of the first shock-absorbing pad is the same as the arc curvature of the side wall of the cabin.

4. The impact-resistant pod propulsion device for ice navigation according to claim 3 is characterized by: The rebound member includes an air cavity, which is slidably arranged in the slide rail and filled with gas. The air cavity is slidably arranged with piston members at both ends of the air cavity toward the two first shock-absorbing pads, and the ends of the piston members away from each other are respectively connected to the two first shock-absorbing pads. Under the action of the gas, the two piston members press the two first shock-absorbing pads against the second shock-absorbing pad.

5. The impact-resistant pod propulsion device for ice navigation according to claim 4 is characterized in that: The piston member comprises a connecting rod and a piston column, one end of the connecting rod is connected to the first shock-absorbing pad, the other end of the connecting rod is connected to the piston column, and the piston column is slidably arranged inside the air cavity.

6. The impact-resistant pod propulsion device for ice navigation according to claim 5 is characterized by: A plurality of hinges are arranged on the side walls of the first shock-absorbing pad that are close to each other, and the hinges include a first hinge rod, a second hinge rod and a third hinge rod. The first hinge rod and the second hinge rod are symmetrically arranged, and one end of the first hinge rod and the second hinge rod are respectively hinged to the positions symmetrical to each other of the first shock-absorbing pad, and the other ends of the first hinge rod and the second hinge rod are hinged to the third hinge rod, and the third hinge rod is connected to the secondary buffer assembly.

7. The impact-resistant pod propulsion device for ice navigation according to claim 6 is characterized by: The secondary buffer assembly includes a front-stage buffer and a rear-stage buffer. The front-stage buffer includes a buffer cavity, a forward buffer, and a reverse buffer. A rolling member is arranged in the buffer cavity. The forward buffer and the reverse buffer are respectively slidably arranged on both sides of the buffer cavity. The forward buffer and the reverse buffer are both rotatably connected to the rolling member. The forward buffer and the reverse buffer have opposite movement directions. The end of the forward buffer away from the buffer cavity is connected to the primary buffer assembly, and the end of the reverse buffer away from the buffer cavity is connected to the adjacent third hinged rod. The rear-stage buffer includes a buffer rod, a buffer seat and a buffer spring. The buffer seat is arranged on the side wall of the cabin body, and a buffer groove is opened on the buffer seat. The buffer rod is slidably arranged in the buffer groove, and the buffer spring is arranged between the buffer groove and the buffer rod. The side of the buffer rod away from the buffer spring is connected to the adjacent third hinged rod.

8. The impact-resistant pod propulsion device for ice navigation according to claim 7 is characterized in that: The buffer cavity is provided with connecting ports at both ends near the positive buffer member and the reverse buffer member, the positive buffer member includes a hollow rectangular cavity with an open side wall, a lower tooth plate is provided on the inner lower surface of the rectangular cavity, a connecting groove is provided at one end of the rectangular cavity near the reverse buffer member, the reverse buffer member is an L-shaped connecting plate, the long side of the L-shaped connecting plate is horizontally arranged, the long side of the L-shaped connecting plate is slidably inserted in the connecting groove, a shock-absorbing spring is provided below the L-shaped connecting plate, one end of the shock-absorbing spring is connected to the side wall of the rectangular cavity near the L-shaped connecting plate, the other end of the shock-absorbing spring is connected to the short side of the L-shaped connecting plate, an upper tooth plate is provided on the side of the long side of the L-shaped connecting plate near the shock-absorbing spring, the rolling member adopts a rolling gear, the lower tooth plate and the upper tooth plate are both meshed with the rolling gear, the short side of the L-shaped connecting plate is connected to the third hinged rod on the side away from the shock-absorbing spring, and the side wall of the rectangular cavity away from the L-shaped connecting plate is connected to the primary buffer assembly.

9. The impact-resistant pod propulsion device for ice navigation according to claim 8, characterized in that: The primary buffer assembly includes a guide rod, a piston disc and a compression spring. An impact zone is provided at the front end of the cabin, and the impact zone is a frame-type structure with an opening at the front end. A partition is provided between the impact zone and the cabin. One end of the guide rod is connected to the rectangular cavity, and the other end of the guide rod is connected to the piston disc. The piston disc is slidably arranged in the impact zone. An impact disc is provided at the front end of the impact zone, and the impact disc is in an outwardly protruding arc-shaped structure. A compression spring is provided between the impact disc and the piston disc, a telescopic rod is provided inside the compression spring, a bellows is provided on the outside of the compression spring, and a sealing layer is provided on the impact disc and the side wall of the impact zone, and the sealing layer is made of elastic material.

10. The impact-resistant pod propulsion device for ice navigation according to claim 1, characterized in that: It also includes an ice-breaking assembly, which includes an ice-breaking frame, an anti-collision beam and an anti-collision strip. The ice-breaking frame is arranged below the impact area, and the ice-breaking frame includes a plurality of ice-breaking pieces arranged at intervals. The anti-collision beam is arranged above the cabin and located at the front end of the connection between the cabin and the hull, and the anti-collision strip is arranged on the side wall of the cabin.

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