Mechanical ice crushing device for crushing ice with assistance of bubbles

Abstract

The mechanical ice crushing device comprises a driving device, a transmission device, a first ice crushing disc and a second ice crushing disc, the transmission device comprises a first gear, a second gear, a long shaft and a sleeve, and the long shaft is fixedly connected with the second gear and then penetrates through the first gear, the sleeve and the first ice crushing disc to be fixedly connected with the second ice crushing disc; the first gear and the first ice crushing disc are fixedly connected through a sleeve, the driving device drives the first gear and the second gear to rotate reversely, the first gear rotates to drive the first ice crushing disc to rotate, the second gear rotates to drive the second ice crushing disc to rotate, and a plurality of air holes are formed in the long shaft and located between the first ice crushing disc and the second ice crushing disc. The first ice crushing disc and the second ice crushing disc rotate reversely, mechanical ice crushing is carried out, and the ice crushing efficiency is high through assistance of bubbles. The bubbles assist in ice crushing, accumulation of crushed ice can be effectively avoided, the working efficiency of the ice crushing device is kept, and large crushed ice cannot be condensed again within a short time when the crushed ice is formed.

Description

Technical Field

[0001] The invention relates to marine ice-breaking equipment, in particular to a mechanical ice-breaking device for assisting ice-breaking with air bubbles. Background Art

[0002] The rich resources in the polar ocean areas are in urgent need of exploitation. However, the polar waterways are filled with broken ice and floating ice. Development ships and transport ships often have to plan complex routes to avoid these. In addition, offshore platforms working in the polar regions also need to perform some ice crushing work. Therefore, offshore ice crushing equipment can solve these problems well.

[0003] Currently, the Arctic route is in the ice-breaking area. Most ships have two solutions to deal with the ice-breaking: strengthening the hull, building a polar-reinforced ship to sail directly, or following the icebreaker. However, the first method of polar-reinforced ships is expensive and has a long manufacturing cycle. The second method of following the icebreaker is also expensive and cannot meet the personalized needs of a large number of ships.

[0004] Research shows that currently the most efficient ice crushing method is mechanical ice crushing, which can quickly complete the ice crushing work through physical destruction and gravity crushing. However, the existing mechanical ice crushing devices have limited ice crushing efficiency and insufficient flexibility. Summary of the invention

[0005] Purpose of the invention: In view of the above problems, the present invention provides a mechanical ice crushing device with bubble-assisted ice crushing and high ice crushing efficiency.

[0006] Technical solution: To solve the above problems, the present invention adopts a mechanical ice crushing device with bubble-assisted ice crushing, including a driving device, a transmission device, a first ice crushing tray and a second ice crushing tray, the transmission device including a first gear, a second gear, a long shaft fixedly connected to the second gear, and a sleeve sleeved outside the long shaft and fixedly connected to the first gear, after the long shaft is fixedly connected to the second gear, it passes through the first gear, the sleeve and the first ice crushing tray and is fixedly connected to the second ice crushing tray, the first gear is fixedly connected to the first ice crushing tray through the sleeve, the driving device drives the first gear and the second gear to rotate in opposite directions, the rotation of the first gear drives the first ice crushing tray to rotate, and the rotation of the second gear drives the second ice crushing tray to rotate, a plurality of air holes are arranged on the long shaft, and the air holes are located between the first ice crushing tray and the second ice crushing tray.

[0007] Furthermore, the first ice crushing tray and the second ice crushing tray are both circumferentially and evenly provided with a plurality of truncated cones with inclined grooves on their sides, and the large ends of the first ice crushing tray and the second ice crushing tray are arranged face to face.

[0008] Furthermore, the long shaft includes an outer shaft, a telescopic motor, a push shaft and a fixed shaft arranged in the outer shaft, one end of the push shaft is connected to the output end of the telescopic motor, and the other end of the push shaft is fixedly connected to the fixed shaft. The interior of the push shaft is hollow and has a plurality of air holes. The second ice crushed tray is fixedly sleeved on the fixed shaft, and the telescopic motor drives the push shaft to extend and retract, thereby driving the second ice crushed tray to move closer to or away from the first ice crushed tray.

[0009] Furthermore, an air pump is provided inside the outer shaft, an air extraction hole is provided on the outer shaft, an input end of the air pump is connected with the air extraction hole, one end of the push shaft is fixedly connected with an output end of the telescopic motor through an air storage ring, and an output end of the air pump is connected with the air storage ring through an air pipe to introduce gas into the push shaft.

[0010] Furthermore, the first gear and the second gear are bevel gears, the driving device includes a driving gear, the driving gear is a bevel gear, the first gear and the second gear are both meshed with the driving gear, and the rotation of the driving gear drives the first gear and the second gear to rotate in opposite directions at the same time.

[0011] Furthermore, the driving device also includes a boom system, and the boom system is used to adjust the action positions of the first crushed ice tray and the second crushed ice tray. It also includes a transmission box, and the transmission device is arranged in the transmission box. The boom system includes a long boom, a short boom, a bobbin, a suspension rope and a base. One end of the long boom is connected to the base, and the other end is provided with a bobbin. One end of the short boom is hinged to the bottom end of the long boom, and the other end is hinged to the transmission box. One end of the suspension rope is wound on the bobbin, and the other end of the suspension rope is connected to one end of the short boom hinged to the transmission box. The rotation of the bobbin drives the short boom to rotate relative to the long boom.

[0012] Furthermore, the base fixes the mechanical ice crushing device at the work site, a rotating motor is fixed on the base, one end of the long boom is fixedly connected to the output end of the rotating motor, and the rotating motor drives the transmission device to rotate relative to the work site.

[0013] Beneficial effects: Compared with the prior art, the present invention has the significant advantage of mechanically crushing ice by rotating the first ice crushing disc and the second ice crushing disc in opposite directions, and the ice crushing efficiency is high through the assistance of bubbles. Bubble-assisted ice crushing can effectively avoid the accumulation of crushed ice, not only to maintain the working efficiency of the ice crushing device, but also to maintain the ice crushing results without condensing large pieces of crushed ice again in a short time, thereby threatening the safe navigation and mooring of the ship. The ice crushing disc is detachable and replaceable, which greatly reduces the maintenance cost. The use of a detachable and easy-to-install fixing device can be applied to small marine structures including various fishing boats and small boats. As a movable ice crushing device, its volume can be selected or customized according to ships of different sizes, and the square base takes into account stability when installed on a flat structure such as a deck, and has strong compatibility. As a movable ice crushing device, it can easily control the movement of the six degrees of freedom of the ice crushing disc through the translation and rotation of the boom, the retraction and extension of the spool, the extension and retraction of the long axis of the ice crushing disc, and the rotation of the gripper to perform multi-angle ice crushing work, and has a wide range of applicability. The manufacturing cost of mechanical ice-breaking devices is much lower than the method of strengthening the hull structure itself and using icebreakers to open up channels, and the cost of use is low. As an ice-breaking device, the energy required is more energy-saving than that of propelling heavier polar reinforced ships and icebreakers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the mechanical ice crushing device in the present invention.

[0015] Figure 2 The figure is a schematic diagram of the overall structure of the mechanical ice crushing device without the transmission box in the present invention.

[0016] Figure 3 It is a schematic diagram of the overall structure of the connection between the driving gear and the transmission device in the present invention.

[0017] Figure 4 It is a front view of the connection between the driving gear, the transmission device and the ice crushing tray in the present invention.

[0018] Figure 5 It is a schematic diagram of the structure of the first gear and the second gear in the present invention.

[0019] Figure 6 It is a schematic structural diagram of the long axis in the present invention.

[0020] Figure 7 It is a structural schematic diagram of the boom in the present invention.

[0021] Figure 8 It is a structural schematic diagram of the gripper in the present invention. DETAILED DESCRIPTION

[0022] like Figures 1 to 4As shown, in this embodiment, a mechanical ice crushing device for bubble-assisted ice crushing includes a driving device 3, a transmission device, a transmission box 1, and an ice crushing tray 2. The ice crushing tray 2 includes a first ice crushing tray 14 and a second ice crushing tray 15. The transmission device is arranged in the transmission box 1. The transmission device includes a first gear 7, a second gear 8, a long shaft 5 fixedly connected to the second gear, and a sleeve sleeved outside the long shaft and fixedly connected to the first gear. The core of the transmission device is the long shaft 5. The first gear 7, the second gear 8 and the ice crushing tray of the gear system are all attached to the long shaft 5. The driving gear 9 of the driving device is connected to the motor 6 through a rotating shaft 12 to directly transmit the power of the motor. The ice crushing trays are installed from top to bottom in sequence. The lower ice crushing tray has a truncated cone structure, with the end with a small outer diameter facing downward. The two small gears cooperate with the movement of the large gear to transmit the movement to the ice crushing tray and the outer shaft of the long shaft. The long shaft is provided with a movable outer shaft, which can be controlled to extend and retract during operation to adjust the working range of the ice crushing tray, so as to deal with sea ice of different sizes and improve the ice crushing efficiency.

[0023] like Figure 5 As shown, the first gear 7 and the second gear 8 are bevel gears, the driving device includes a driving gear, the driving gear is a bevel gear, the first gear and the second gear are both meshed with the driving gear, and the driving gear rotates to drive the first gear and the second gear to rotate in opposite directions at the same time. After the long shaft 5 is fixedly connected with the second gear 8, it passes through the first gear 7, the sleeve 13 and the first crushed ice tray 14 and is fixedly connected with the second crushed ice tray 15. The first gear 7 is fixedly connected with the first crushed ice tray 14 through the sleeve 13. The driving device drives the first gear and the second gear to rotate in opposite directions. The rotation of the first gear drives the first crushed ice tray to rotate, and the rotation of the second gear drives the second crushed ice tray to rotate.

[0024] like Figure 6 As shown, the long shaft 5 includes an outer shaft 16, a telescopic motor 35 arranged in the outer shaft, a push shaft 30 and a fixed shaft 11, and a power supply 34. The power supply 34 supplies power to the air pump 33 and the telescopic motor 35. The outer shaft 16 is hollow in design. The air pump 33 is integrated in the outer shaft 16. An air extraction hole 31 is arranged on the outer shaft 16. The air pump input end is connected to the air extraction hole. One end of the push shaft 30 is fixedly connected to the output end of the telescopic motor through an air storage ring 37. The output end 32 of the air pump is connected to the air storage ring 37 through an air delivery pipe 36. Gas is introduced into the push shaft. The hollow setting provides space for the transmission of gas. The air hole 10 is arranged on the push shaft 30. The air pump then transmits gas to discharge bubbles to assist in ice crushing. The second ice crushing tray 15 is fixedly sleeved on the fixed shaft. The telescopic motor drives the push shaft to extend and retract, thereby driving the second ice crushing tray 15 to approach or move away from the first ice crushing tray 14.

[0025] like Figure 7 and Figure 8As shown, the driving device also includes a boom system, and the driving device 3 includes a long boom 18, a short boom 22, a bobbin 19, a suspension rope 20 and a base 17. One end of the long boom 18 is connected to the base 17, and the other end is provided with a bobbin 19. One end of the short boom 22 is hinged to the bottom end of the long boom 18 through a rotating shaft 24, and the other end is hinged to the gripper 21 through a rotating shaft 25. One end of the suspension rope 20 is wound around the bobbin 19, and the other end of the suspension rope is connected to one end of the short boom hinged to the gripper 21. The rotation of the bobbin 19 drives the short boom to rotate relative to the long boom. A rotating motor 23 is fixed on the base 17, and one end of the long boom 18 is fixedly connected to the output end of the rotating motor 23. The rotating motor 23 drives the transmission device to rotate relative to the work site.

[0026] The boom system is a multi-angle control device for the entire ice crushing device and is also a fixing device for fixing the ice crushing device. The base 17 of the boom 3 is fixed on a marine structure. The ideal location is any relatively flat work location such as the deck of a small fishing boat. The entire boom structure is composed of a long boom and a short boom. A rotating motor and a base are arranged below the junction of the long and short booms. The square base has considerable stability when the device is installed on a flat structure. The rotating motor can control the rotation of the entire boom. The long and short booms can control the vertical displacement of the gripper through the retraction and release of the suspension rope by the spool. The gripper is fixed outside the transmission box 1. The short boom and the gripper are hinged. The gripper itself can be rotated and displaced. Combined with the movement of the ice crushing plate and the long axis, it can achieve movement in 6 degrees of freedom.

Claims

1. A mechanical ice crushing device with bubble-assisted ice crushing, characterized in that: The invention comprises a driving device, a transmission device, a first crushed ice tray (14) and a second crushed ice tray (15), wherein the transmission device comprises a first gear (7), a second gear (8), a long shaft (5) fixedly connected to the second gear, and a sleeve (13) sleeved outside the long shaft and fixedly connected to the first gear; the long shaft (5) is fixedly connected to the second gear (8) and then passes through the first gear (7), the sleeve (13) and the first crushed ice tray (14) to be fixedly connected to the second crushed ice tray (15); the first gear (7) is fixedly connected to the first crushed ice tray (14) through the sleeve (13); the driving device drives the first gear and the second gear to rotate in opposite directions; the rotation of the first gear drives the first crushed ice tray to rotate; the rotation of the second gear drives the second crushed ice tray to rotate; a plurality of air holes (10) are arranged on the long shaft (5), and the air holes are located between the first crushed ice tray and the second crushed ice tray.

2. The mechanical ice crushing device according to claim 1, characterized in that: The side surfaces of the first ice crushing tray (14) and the second ice crushing tray (15) are both evenly provided with a plurality of truncated cones with inclined grooves in the circumferential direction, and the large ends of the first ice crushing tray (14) and the second ice crushing tray (15) are arranged face to face.

3. The mechanical ice crushing device according to claim 1, characterized in that: The long shaft (5) comprises an outer shaft (16), a telescopic motor arranged inside the outer shaft, a push shaft and a fixed shaft, one end of the push shaft is connected to the output end of the telescopic motor, and the other end of the push shaft is fixedly connected to the fixed shaft, the interior of the push shaft is hollow and has a plurality of air holes, the second ice crushing tray (15) is fixedly sleeved on the fixed shaft, and the telescopic motor drives the push shaft to extend and retract, thereby driving the second ice crushing tray (15) to move closer to or away from the first ice crushing tray (14).

4. The mechanical ice crushing device according to claim 3, characterized in that: An air pump is also arranged inside the outer shaft (16). An air extraction hole is arranged on the outer shaft (16). The air pump input end is connected to the air extraction hole. One end of the push shaft is fixedly connected to the output end of the telescopic motor through an air storage ring. The output end of the air pump is connected to the air storage ring through an air pipe to introduce gas into the push shaft.

5. The mechanical ice crushing device according to claim 1, characterized in that: The first gear (7) and the second gear (8) are bevel gears, the driving device comprises a driving gear (9), the driving gear (9) is a bevel gear, the first gear (7) and the second gear (8) are both meshed with the driving gear (9), and the driving gear (9) rotates to drive the first gear (7) and the second gear (8) to rotate in opposite directions at the same time.

6. The mechanical ice crushing device according to claim 1, characterized in that: The driving device further comprises a suspension arm system (3), wherein the suspension arm system is used to adjust the action positions of the first ice crushing tray (14) and the second ice crushing tray (15).

7. The mechanical ice crushing device according to claim 6, characterized in that: It also includes a transmission box (1), wherein the transmission device is arranged in the transmission box (1); the boom system (3) includes a long boom (18), a short boom (22), a bobbin (19), a suspension rope (20) and a base (17); one end of the long boom (18) is connected to the base (17), and the other end is provided with a bobbin (19); one end of the short boom (22) is hinged to the bottom end of the long boom (18), and the other end is hinged to the transmission box (1); one end of the suspension rope (20) is wound around the bobbin (19), and the other end of the suspension rope is connected to one end of the short boom hinged to the transmission box; the rotation of the bobbin (19) drives the short boom to rotate relative to the long boom.

8. The mechanical ice crushing device according to claim 7, characterized in that: The base fixes the mechanical ice crushing device at the work site, a rotating motor is fixed on the base, one end of the long suspension arm (18) is fixedly connected to the output end of the rotating motor, and the rotating motor drives the transmission device to rotate relative to the work site.

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