Slip clutch gear box and ship

Abstract

The utility model discloses a slip clutch gear box and a ship, and belongs to the technical field of ships, the slip clutch gear box comprises a box body, an input assembly, an output assembly, a slip clutch and a hydraulic system, the input assembly comprises an input shaft and an input gear, the output assembly comprises an output shaft and an output gear, and the output gear is meshed with the input gear; the slip clutch comprises a clutch shell, an outer friction plate and an inner friction plate, the clutch shell is arranged on the output shaft in a sleeving mode and connected with the output gear, the outer friction plate is arranged on the inner wall of the clutch shell, and the inner friction plate is arranged on the output shaft and located in the clutch shell; the hydraulic system comprises an oil pump, a valve group and an oil conveying pipeline, the oil pump is connected with the input shaft, the valve group is arranged at the top of the box, and at least part of the oil conveying pipeline is connected with the oil pump and the valve group. The ship comprises a propeller and the slip clutch gearbox, and the propeller is connected with the output shaft. The oil pump is integrated on the input shaft, driving sources are reduced, and reliability and economy are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a slip clutch gearbox and a ship. Background Art

[0002] During the navigation of a ship, propulsion is usually carried out by a steering propeller. At present, the power source of the steering propeller is a diesel engine or an electric motor. For a diesel engine propulsion system, a slip clutch is usually installed, which has high maneuverability and good smooth engagement performance in the low-speed section. For a slip clutch gearbox, an independent hydraulic station is usually provided, and the hydraulic station is separated from the gearbox, occupying a large space and having redundant oil circuits. The power of the oil pump of the independent hydraulic station comes from an independent electric input, resulting in energy waste. Content of the Utility Model

[0003] The purpose of the utility model is to provide a slip clutch gearbox and a ship, so as to solve the technical problems of large space occupation and energy waste caused by the existing independent hydraulic station and oil pump.

[0004] With the above concept, the technical solution adopted by the utility model is as follows:

[0005] A slip clutch gearbox, comprising:

[0006] A box body;

[0007] An input assembly, including an input shaft and an input gear, the input shaft is rotatably arranged in the box body and one end of the input shaft is located outside the box body, and the input gear is arranged on the input shaft and located inside the box body;

[0008] An output assembly, including an output shaft and an output gear, the output shaft is rotatably arranged in the box body and one end of the output shaft is located outside the box body, and the output gear is arranged on the output shaft and located inside the box body, and the output gear meshes with the input gear;

[0009] A slip clutch, including a clutch housing, outer friction plates and inner friction plates, the clutch housing is sleeved on the output shaft and connected to the output gear, the outer friction plates are arranged on the inner wall of the clutch housing, and the inner friction plates are arranged on the output shaft and located inside the clutch housing;

[0010] A hydraulic system, including an oil pump, a valve group and an oil pipeline, the oil pump is connected to the input shaft, the valve group is arranged on the top of the box body, and at least part of the oil pipeline connects the oil pump and the valve group.

[0011] Preferably, the oil pipeline includes an inlet pipe, an outlet pipe, a lubricating pipe, and a working pipe. The inlet pipe connects the box body and the oil pump. The outlet pipe connects the oil pump and the valve group. One end of the lubricating pipe connects the valve group, and the other end of the lubricating pipe is used to supply oil to the lubricating position in the box body. One end of the working pipe connects the valve group, and the other end of the working pipe is used to supply oil to the slip clutch.

[0012] Preferably, the slip clutch further includes a clutch piston and a return spring. The clutch piston is arranged in the clutch housing and forms a working chamber between the clutch piston and the clutch housing. The return spring is arranged between the clutch piston and the clutch housing. An oil hole is arranged on the output shaft. One end of the oil hole connects the working pipe, and the other end of the oil hole communicates with the working chamber to supply oil to the working chamber to push the clutch piston to move.

[0013] Preferably, the oil pipeline further includes a main pipeline. The main pipeline is connected to the valve group. The lubricating pipe and the working pipe are both connected to the main pipeline. A filter is arranged on the main pipeline.

[0014] Preferably, a cooler is further included. A cold water chamber is formed inside the cooler. The lubricating pipe passes through the cold water chamber.

[0015] Preferably, the oil pump is connected to the input shaft through a transmission mechanism. The transmission mechanism includes a driving gear, a driven gear, and a driven shaft. The driving gear is arranged on the input shaft. The driven gear is arranged on the driven shaft. The driven gear meshes with the driving gear. The driven shaft is connected to the oil pump to drive the oil pump to rotate.

[0016] Preferably, the output shaft is located above the input shaft.

[0017] Preferably, an installation cavity is formed in the middle of the output gear. One end of the clutch housing is located in the installation cavity and is connected to the output gear. Two first bearings are arranged between the clutch housing and the output shaft.

[0018] Preferably, an input flange is arranged at one end of the input shaft outside the box body, and an output flange is arranged at one end of the output shaft outside the box body. The input flange and the output flange are distributed on opposite sides of the box body.

[0019] A ship includes a propeller and the slip clutch gearbox as described above. The propeller is connected to the output shaft.

[0020] The beneficial effects of the present utility model:

[0021] The slip clutch gearbox proposed by the present utility model has an input shaft driving an input gear to rotate, and the input gear driving an output gear to rotate. When the slip clutch is in the disengaged state, the outer friction plate and the inner friction plate are separated, and the output gear rotates idly while the output shaft remains stationary; when the slip clutch is in the engaged state, the outer friction plate and the inner friction plate are in contact, and the rotation of the output gear drives the output shaft to rotate; the oil pump is integrated on the input shaft, and the rotation of the input shaft drives the oil pump to rotate, reducing the drive source, which is more reliable and economical. The valve group is arranged at the top of the box body, enabling the integration of the valve group and the box body, occupying less space, having a more compact structure, being more conducive to on-site assembly, reducing oil circuit redundancy, and improving work efficiency. Brief Description of the Drawings

[0022] Figure 1 is the front view of the slip clutch gearbox provided by an embodiment of the present utility model;

[0023] Figure 2 is the side view of the slip clutch gearbox provided by an embodiment of the present utility model;

[0024] Figure 3 is the structural schematic diagram of the slip clutch gearbox provided by an embodiment of the present utility model;

[0025] Figure 4 is the partial structural schematic diagram of the slip clutch gearbox provided by an embodiment of the present utility model.

[0026] In the figures:

[0027] 10, box body;

[0028] 20, input assembly; 21, input shaft; 22, input gear; 23, input flange; 24, third bearing;

[0029] 30, output assembly; 31, output shaft; 32, output gear; 33, output flange; 34, first bearing; 35, second bearing;

[0030] 40, slip clutch; 41, clutch housing; 42, outer friction plate; 43, inner friction plate;

[0031] 50, hydraulic system; 51, oil pump; 52, valve group; 53, inlet pipe; 54, outlet pipe; 55, lubricating pipe; 56, working pipe; 57, driving gear; 58, driven gear; 59, driven shaft;

[0032] 60, filter;

[0033] 70, cooler. Detailed Implementation Modes

[0034] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0035] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0037] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0038] See Figures 1 to 4, an embodiment of the utility model provides a slip clutch gearbox, which includes a box body 10, an input assembly 20, an output assembly 30, a slip clutch 40 and a hydraulic system 50. The input assembly 20 includes an input shaft 21 and an input gear 22. The input shaft 21 is rotatably arranged in the box body 10 and one end of the input shaft 21 is located outside the box body 10. The input gear 22 is arranged on the input shaft 21 and is located inside the box body 10. The output assembly 30 includes an output shaft 31 and an output gear 32. The output shaft 31 is rotatably arranged in the box body 10 and one end of the output shaft 31 is located outside the box body 10. The output gear 32 is arranged on the output shaft 31 and is located inside the box body 10. The output gear 32 meshes with the input gear 22. The slip clutch 40 includes a clutch housing 41, an outer friction plate 42 and an inner friction plate 43. The clutch housing 41 is sleeved on the output shaft 31 and is connected to the output gear 32. The outer friction plate 42 is arranged on the inner wall of the clutch housing 41. The inner friction plate 43 is arranged on the output shaft 31 and is located inside the clutch housing 41. The hydraulic system 50 includes an oil pump 51, a valve group 52 and an oil pipeline. The oil pump 51 is connected to the input shaft 21. The valve group 52 is arranged on the top of the box body 10. At least part of the oil pipeline connects the oil pump 51 and the valve group 52.

[0039] The input shaft 21 drives the input gear 22 to rotate, and the input gear 22 drives the output gear 32 to rotate. When the slip clutch 40 is in the disengaged state, the outer friction plate 42 and the inner friction plate 43 are separated, and the output gear 32 rotates idly while the output shaft 31 does not move. When the slip clutch 40 is in the engaged state, the outer friction plate 42 and the inner friction plate 43 are in contact, and the output gear 32 rotates to drive the output shaft 31 to rotate. The oil pump 51 is integrated with the input shaft 21, and the rotation of the input shaft 21 drives the oil pump 51 to rotate, reducing the drive source, which is more reliable and economical. The valve group 52 is arranged on the top of the box body 10, so that the valve group 52 is integrated with the box body 10, occupying less space, having a more compact structure, being more conducive to on-site assembly, reducing oil circuit redundancy and improving work efficiency.

[0040] The oil pipeline includes an inlet pipe 53, an outlet pipe 54, a lubricating pipe 55, and a working pipe 56. The inlet pipe 53 connects the box body 10 and the oil pump 51. The outlet pipe 54 connects the oil pump 51 and the valve group 52. One end of the lubricating pipe 55 is connected to the valve group 52, and the other end of the lubricating pipe 55 is used to supply oil to the lubricating position in the box body 10. One end of the working pipe 56 is connected to the valve group 52, and the other end of the working pipe 56 is used to supply oil to the slip clutch 40. When the working pipe 56 supplies oil to the slip clutch 40, the slip clutch 40 is in the engaged state; when the working pipe 56 does not supply oil to the slip clutch 40, the slip clutch 40 is in the disengaged state. Whether the working pipe 56 supplies oil to the slip clutch 40 is controlled by the valve group 52. The valve group 52 has multiple working positions and is in different conducting states in different working positions. The valve group 52 can adopt an existing valve structure, which can be a single valve or a combination of multiple valves. For example, the valve group 52 includes an electro-hydraulic proportional valve, which can control the pressure of the working pipe 56.

[0041] The working principle of the slip clutch 40 is an existing principle. Both the outer friction plates 42 and the inner friction plates 43 are provided with a plurality of them and are arranged alternately. Each outer friction plate 42 is inserted between two adjacent inner friction plates 43. The slip clutch 40 further includes a clutch piston and a return spring. The clutch piston is arranged in the clutch housing 41 and forms a working chamber between the clutch piston and the clutch housing 41. The return spring is arranged between the clutch piston and the clutch housing 41. An oil hole is provided on the output shaft 31. One end of the oil hole is connected to the working pipe 56, and the other end of the oil hole communicates with the working chamber to supply oil to the working chamber to push the clutch piston to move. The clutch piston can squeeze the outer friction plates 42 or the inner friction plates 43, and the outer friction plates 42 and the inner friction plates 43 are in contact. According to the different oil pressures of the working pipe 56, the contact pressure between the outer friction plates 42 and the inner friction plates 43 is different, so that the slip clutch 40 has a disengaged state, an engaged state, and a semi-slip state.

[0042] The rotation of the input shaft 21 drives the rotation of the oil pump 51. The oil pump 51 supplies oil to the valve group 52. When the working pipe 56 is closed and does not supply oil to the slip clutch 40, the slip clutch 40 is in the disengaged state. The outer friction plates 42 and the inner friction plates 43 are separated. The input gear 22 drives the output gear 32 to rotate, and the output gear 32 rotates idly while the output shaft 31 does not move. At the same time, the valve group 52 supplies oil to the lubricating position in the box body 10 through the lubricating pipe 55.

[0043] The rotation of the input shaft 21 drives the rotation of the oil pump 51. The oil pump 51 supplies oil to the valve group 52. When the working pipe 56 supplies oil to the slip clutch 40, it pushes the clutch piston to move, causing the outer friction plates 42 and the inner friction plates 43 to fit together. The slip clutch 40 is in the engaged state. The input gear 22 drives the output gear 32 to rotate, and the output gear 32 drives the output shaft 31 to rotate. At the same time, the valve group 52 supplies oil to the lubrication positions inside the housing 10 through the lubrication pipe 55. When the working pipe 56 does not supply oil to the slip clutch 40, the clutch piston returns under the action of the return spring, causing the outer friction plates 42 and the inner friction plates 43 to disengage.

[0044] The rotation of the input shaft 21 drives the rotation of the oil pump 51. The oil pump 51 supplies oil to the valve group 52. When the working pipe 56 supplies oil with a pressure change to the slip clutch 40, it pushes the clutch piston to move, causing the outer friction plates 42 and the inner friction plates 43 to slip. The slip clutch 40 is in the semi-slip state. The input gear 22 drives the output gear 32 to rotate, and the output gear 32 drives the output shaft 31 to rotate. There is a speed difference between the outer friction plates 42 and the inner friction plates 43. Therefore, the speed of the output shaft 31 changes. At the same time, the valve group 52 supplies oil to the lubrication positions inside the housing 10 through the lubrication pipe 55.

[0045] The working state of the slip clutch 40 can be adjusted according to actual needs, thereby changing the speed of the output shaft 31 to adapt to different working conditions.

[0046] The lubrication pipe 55 and the working pipe 56 can be directly connected to the valve group 52 or indirectly connected. In this embodiment, the oil delivery pipeline further includes a main pipeline, which is connected to the valve group 52. The lubrication pipe 55 and the working pipe 56 are both connected to the main pipeline, and a filter 60 is provided on the main pipeline. That is to say, the lubrication pipe 55 and the working pipe 56 are both branch pipes of the main pipeline. By providing the main pipeline, it is convenient to install the filter 60 to filter impurities in the oil. The filter 60 can adopt an existing oil filtration structure, and its structure and principle will not be elaborated here.

[0047] The slip clutch gearbox further includes a cooler 70. A cold water chamber is formed inside the cooler 70, and the lubrication pipe 55 passes through the cold water chamber. By providing the cooler 70, the lubricating oil in the lubrication pipe 55 can be cooled, so that the lubricating oil cools the lubrication positions during the process of flowing through the lubrication positions, preventing excessive heat from accumulating in the housing 10. Usually, the lubricating oil will flow to the positions where the bearings, the outer friction plates 42 and the inner friction plates 43 are located.

[0048] In this embodiment, the lubricating oil flows from the valve group 52 to the lubrication pipe 55, then flows through the cooler 70 and back to the valve group 52, and then flows out from the valve group 52 to the lubrication positions. Therefore, the lubrication pipe 55 can be provided with one, two or more than two according to needs, which is not limited here.

[0049] The clutch housing 41 is connected to the output gear 32, and the output gear 32 and the output shaft 31 may be key-connected, and the end of the clutch housing 41 is connected to the surface of the output gear 32. In this embodiment, a mounting cavity is formed in the middle of the output gear 32, one end of the clutch housing 41 is located in the mounting cavity and connected to the output gear 32, and two first bearings 34 are arranged between the clutch housing 41 and the output shaft 31.

[0050] Two second bearings 35 are provided between the output shaft 31 and the housing 10, and the two second bearings 35 are arranged at intervals to support the output shaft 31. Two third bearings 24 are provided between the input shaft 21 and the housing 10, and the two third bearings 24 are arranged at intervals to support the input shaft 21.

[0051] The oil pump 51 can be directly connected to the input shaft 21 or indirectly connected. In this embodiment, the oil pump 51 is connected to the input shaft 21 through a transmission mechanism, and the transmission mechanism includes a driving gear 57, a driven gear 58 and a driven shaft 59. The driving gear 57 is arranged on the input shaft 21, and the driven gear 58 is arranged on the driven shaft 59. The driven gear 58 is meshed with the driving gear 57, and the driven shaft 59 is connected to the oil pump 51 to drive the oil pump 51 to rotate. Specifically, one end of the driven shaft 59 extends out of the housing 10, and the oil pump 51 is arranged outside the housing 10 and on one side of the housing 10. When the input shaft 21 rotates, the driving gear 57 is driven to rotate, the driving gear 57 drives the driven gear 58 to rotate, and the driven gear 58 drives the driven shaft 59 to rotate, thereby driving the oil pump 51 to rotate. The transmission ratio between the driving gear 57 and the driven gear 58 can be set according to actual needs.

[0052] In this embodiment, the output shaft 31 is located above the input shaft 21. Since the input shaft 21 has a high rotation speed, the input shaft 21 is arranged at the bottom to make the slip clutch gearbox more stable.

[0053] An input flange 23 is provided at one end of the input shaft 21 outside the housing 10, and an output flange 33 is provided at one end of the output shaft 31 outside the housing 10. The input flange 23 and the output flange 33 are distributed on opposite sides of the housing 10, so that the slip clutch gearbox is subjected to balanced force, further ensuring stability.

[0054] This embodiment also provides a ship, which includes a propeller and the above-mentioned slip clutch gearbox, and the propeller is connected to the output shaft 31. When the slip clutch 40 is in the disengaged state, the outer friction plate 42 and the inner friction plate 43 are disengaged, the input gear 22 drives the output gear 32 to rotate, the output gear 32 rotates idly while the output shaft 31 does not move, and thus the propeller does not rotate. When the slip clutch 40 is in the engaged state, the input gear 22 drives the output gear 32 to rotate, the output gear 32 drives the output shaft 31 to rotate, and thus drives the propeller to rotate. When the slip clutch 40 is in the semi-slip state, the input gear 22 drives the output gear 32 to rotate, the output gear 32 drives the output shaft 31 to rotate, and there is a rotational speed difference between the outer friction plate 42 and the inner friction plate 43. Therefore, the rotational speed of the output shaft 31 changes, and thus the rotational speed of the propeller can be adjusted.

[0055] The above embodiments only illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, there are various changes and modifications to the present invention, and these changes and modifications all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A slip clutch gearbox, characterized in that, Comprising: A housing (10); An input assembly (20), including an input shaft (21) and an input gear (22), the input shaft (21) is rotatably arranged in the housing (10) and one end of the input shaft (21) is located outside the housing (10), the input gear (22) is arranged on the input shaft (21) and is located inside the housing (10); An output assembly (30), including an output shaft (31) and an output gear (32), the output shaft (31) is rotatably arranged in the housing (10) and one end of the output shaft (31) is located outside the housing (10), the output gear (32) is arranged on the output shaft (31) and is located inside the housing (10), the output gear (32) meshes with the input gear (22); A fluid coupling (40), including a clutch housing (41), outer friction plates (42) and inner friction plates (43), the clutch housing (41) is sleeved on the output shaft (31) and is connected to the output gear (32), the outer friction plates (42) are arranged on the inner wall of the clutch housing (41), the inner friction plates (43) are arranged on the output shaft (31) and are located inside the clutch housing (41); A hydraulic system (50), including an oil pump (51), a valve group (52) and an oil pipeline, the oil pump (51) is connected to the input shaft (21), the valve group (52) is arranged on the top of the housing (10), and at least part of the oil pipeline connects the oil pump (51) and the valve group (52).

2. The slip clutch gearbox according to claim 1, characterized in that, The oil pipeline includes an inlet pipe (53), an outlet pipe (54), a lubricating pipe (55) and a working pipe (56), the inlet pipe (53) connects the housing (10) and the oil pump (51), the outlet pipe (54) connects the oil pump (51) and the valve group (52), one end of the lubricating pipe (55) is connected to the valve group (52), the other end of the lubricating pipe (55) is used to supply oil to the lubricating position inside the housing (10), one end of the working pipe (56) is connected to the valve group (52), and the other end of the working pipe (56) is used to supply oil to the fluid coupling (40).

3. The slip clutch gearbox according to claim 2, characterized in that, The fluid coupling (40) further includes a clutch piston and a return spring, the clutch piston is arranged inside the clutch housing (41) and forms a working chamber with the clutch housing (41), the return spring is arranged between the clutch piston and the clutch housing (41), an oil hole is arranged on the output shaft (31), one end of the oil hole is connected to the working pipe (56), and the other end of the oil hole communicates with the working chamber to supply oil to the working chamber to push the clutch piston to move.

4. The slip clutch gearbox according to claim 2, characterized in that, The oil pipeline further includes a main pipeline, the main pipeline is connected to the valve group (52), both the lubricating pipe (55) and the working pipe (56) are connected to the main pipeline, and a filter (60) is arranged on the main pipeline.

5. The slip clutch gearbox according to claim 2, characterized in that, It further includes a cooler (70), a cold water chamber is formed inside the cooler (70), and the lubricating pipe (55) passes through the cold water chamber.

6. The slip clutch gearbox according to claim 1, characterized in that, The oil pump (51) is connected to the input shaft (21) through a transmission mechanism. The transmission mechanism includes a driving gear (57), a driven gear (58) and a driven shaft (59). The driving gear (57) is arranged on the input shaft (21), the driven gear (58) is arranged on the driven shaft (59), the driven gear (58) meshes with the driving gear (57), and the driven shaft (59) is connected to the oil pump (51) to drive the oil pump (51) to rotate.

7. The slip clutch gearbox according to claim 1, characterized in that, The output shaft (31) is located above the input shaft (21).

8. The slip clutch gearbox according to claim 1, characterized in that, An installation cavity is formed in the middle of the output gear (32). One end of the clutch housing (41) is located in the installation cavity and is connected to the output gear (32). Two first bearings (34) are arranged between the clutch housing (41) and the output shaft (31).

9. The slip clutch gearbox according to any one of claims 1-8, characterized in that, An input flange (23) is arranged at one end of the input shaft (21) outside the box body (10), and an output flange (33) is arranged at one end of the output shaft (31) outside the box body (10). The input flange (23) and the output flange (33) are distributed on opposite sides of the box body (10).

10. A ship, characterized in that, It includes a propeller and the slip clutch gearbox according to any one of claims 1-9, and the propeller is connected to the output shaft (31).

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