CN218761283U - Marine gear box capable of resisting ultrahigh impact and vibration - Google Patents

Abstract

The utility model discloses an anti superelevation strikes, marine gear box of vibration, the input shaft of gear box is connected with the output transmission of diesel engine through high-elastic shaft coupling, the box fixed mounting of gear box has first clamshell, fixed mounting has the second clamshell on the casing of diesel engine, first clamshell and second clamshell fixed connection, gear box and diesel engine are all installed on the hull through elastic shock pad, and then the gear box has been improved, the connection structure of hull and diesel engine, the influence of external shock to the gear box has been reduced, the intensity of gear box has been improved simultaneously, the ability of impact and vibration is resisted to gear box self has been improved.

Description

Marine gear box capable of resisting ultrahigh impact and vibration

Technical Field

The utility model relates to a boats and ships power impels technical field, especially relates to a marine gear box of anti superelevation impact, vibration.

Background

The prior gear boxes matched with public affair law enforcement ships, patrol ships, motorboats, yachts and other ships mostly adopt equipment of foreign ZF, american TWIN and other well-known companies, and the ships have the characteristics of high sailing speed, large impact and large vibration; the maximum peak vibration acceleration can reach 18g by real ship measurement, and a special ship body arrangement mode that a gear box needs to bear part of the weight of a diesel engine is adopted, so that the impact resistance, the vibration capability and the strength reliability of power equipment are improved, and the phenomena of box body and shaft fracture, oil leakage, resonance and the like in a conventional mode are avoided.

The patent document with publication number CN114183507A discloses a gearbox for a high-speed and low-speed output ship, which comprises a box body, wherein a reversing shaft, an input shaft and an output shaft are arranged in the box body; the flywheel of the diesel engine is connected with one end of the input shaft for transmission through an input coupling, a slow gear transmission gear is fixedly arranged on the input shaft close to the input coupling, and a slow gear piston, a slow gear return spring and a slow gear inner friction plate are arranged in the slow gear transmission gear; the input shaft is also provided with a slow-gear driving gear which rotates relatively, and a slow-gear driving gear seat of the slow-gear driving gear is provided with a slow-gear outer friction plate which is used for forming a slow-gear clutch by matching with a slow-gear inner friction plate; the slow-gear driving gear is normally meshed with a slow-gear driven gear arranged on the output shaft to provide power for the slow-gear running working condition of the output shaft; the slow gear transmission gear is normally meshed with the reversing transmission gear, the reversing transmission gear is fixedly arranged at one end, close to the input coupling, of the reversing axle, and a reversing piston, a reversing return spring and a reversing inner friction plate are arranged in the reversing transmission gear; a reverse driving gear which rotates relatively is also arranged on the reverse shaft, and a reverse driving outer friction plate is arranged on a reverse driving gear seat of the reverse driving gear and is used for being matched with a reverse inner friction plate to form a reverse clutch; the reversing driving gear is normally meshed with a slow-gear driven gear arranged on the output shaft to provide power for the slow-gear reversing working condition of the output shaft; a quick-gear clutch shell is fixedly arranged at one end of the input shaft, which is far away from the input coupling, and a quick-gear piston, a quick-gear return spring and a quick-gear inner friction plate are arranged in the quick-gear clutch shell; the input shaft is also provided with a relatively rotating fast gear driving gear, and a fast gear driving gear seat of the fast gear driving gear is provided with a fast gear outer friction plate which is used for being matched with a fast gear inner friction plate to form a fast gear clutch; the fast-gear driving gear is constantly meshed with a fast-gear driven gear fixedly arranged on the output shaft to provide power for the fast-gear smooth working condition of the output shaft; the output shaft outputs power outwards through the output coupling, an oil pump is further arranged on the box body, and the oil pump supplies oil to the reversing shaft and the input shaft under the control of the control valve.

Although the prior art realizes the forward, reverse and high-low gear switching, the gearbox and the diesel engine are only in information transmission connection through the coupler, but the stability of the structures and the transmission effects of the diesel engine and the gearbox cannot be ensured after the ship is impacted or vibrates.

SUMMERY OF THE UTILITY MODEL

In order to solve how among the prior art after the ship receives the impact or takes place to vibrate, guarantee the stable problem of diesel engine and gear box structure and transmission effect, the utility model aims to provide an anti superelevation strikes, marine gear box of vibration.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an anti super high impact, marine gear box of vibration, the power distribution box comprises a box body, and rotate the input shaft of installing on the box, transmission shaft and output shaft, fixed mounting has the input to pass the gear on the input shaft, rotate on the input shaft and install the input master gear, install on the input shaft and be used for driving the pivoted clutch of following the car of input master gear, fixed mounting has the transmission that passes the gear with the meshing transmission of input gear on the transmission shaft, rotate on the transmission shaft and install the transmission master gear, install the clutch of backing a car that is used for driving transmission master gear pivoted on the transmission shaft, fixed mounting has the output to follow the gear on the output shaft, input master gear and transmission master gear all mesh with the output from the gear, the input shaft of gear box passes through high-elastic shaft coupling and is connected with the output transmission of diesel engine, the box fixed mounting of gear box has first clamshell, fixed mounting has the second clamshell on the casing of diesel engine, first clamshell and second clamshell fixed connection.

Preferably, the box body of the gearbox and the diesel engine shell are both arranged on the ship body through shock absorption pads with elasticity.

Preferably, the box body of the gearbox and the diesel engine shell are arranged on the same shock pad.

Preferably, a plurality of rib plates which are arranged in a criss-cross mode are arranged in the box body.

Preferably, part of the rib plates can surround the inner wall of the box body for a circle and are connected end to end.

Preferably, a plurality of connecting points are arranged in the box body, part of the connecting points are arranged at the head end and/or the tail end of part of the rib plates, and part of the connecting points are arranged at the staggered position of the two rib plates.

Preferably, the gearbox includes a plurality of joints for connecting the lines, the joints including a straight-through joint, a nut, and a tapered ferrule joint; the straight joint comprises a connecting end in a frustum shape, the nut sleeve is arranged outside the straight joint, a frustum-shaped connecting space is formed between an inner hole of the nut and the connecting end, one end of the taper sleeve connector is inserted into the connecting space, the taper sleeve connector is connected with threads, and the inner wall of the taper sleeve connector is abutted to the outer wall of the connecting end of the straight joint.

Preferably, an annular sealing groove is formed in the outer wall of the connecting end of the straight-through connector, a first O-shaped sealing ring is arranged in the sealing groove, and the first O-shaped sealing ring abuts against the inner wall of the taper clamping sleeve connector.

Preferably, a second O-shaped sealing ring is arranged between the nut and the through joint.

The technical scheme of the utility model beneficial effect does: the connecting structure of the gear box, the ship body and the diesel engine is improved, the influence of external impact on the gear box is reduced, the strength of the gear box is improved, the impact and vibration resistance of the gear box is improved, the sealing effect of a pipeline in the gear box is improved, the gear box does not leak oil under the working condition of high impact or vibration, and the stability of transmission between the gear box and the diesel engine is improved.

Drawings

FIG. 1 is a schematic view of a transmission structure of a marine gearbox according to the present invention;

FIG. 2 is a schematic structural diagram of a box body before improvement;

FIG. 3 is a schematic structural diagram of the improved box body;

FIG. 4 is a schematic structural diagram of a housing cover before improvement;

FIG. 5 is a schematic view of a modified connection structure of the housing and the cover;

FIG. 6 is a schematic view of a conventional seal structure before modification;

FIG. 7 is a schematic view of a modified, sealed structure;

FIG. 8 is a schematic view of the connection structure of the gearbox, the diesel engine and the ship body.

Reference numerals: 1. inputting a main gear; 2. an output slave gear; 3. a transmission main gear; 4. a transmission gear; 5. an input transmission gear; 10. an input shaft; 20. a drive shaft; 30. an output shaft; 40. a forward clutch; 50. a reverse clutch; 61. a bonding section; 611. a bonding surface; 62. a connecting portion; 63. a lug; 71. a box body; 72. a rib plate; 73. a connection point; 74. a first housing; 75. a shock pad; 76. a high-elastic coupler; 77. a second housing; 78. a diesel engine; 81. a straight-through joint; 82. a nut; 83. a connection space; 84. a first O-ring; 85. a second O-ring; 86. a tapered ferrule adapter; 91. a bolt; 92. a red copper gasket; 93. lute connects.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

Examples

The marine gearbox capable of resisting ultrahigh impact and vibration as shown in fig. 1 and 8 comprises a box body, an input shaft 10, a transmission shaft 20 and an output shaft 30, wherein the input shaft 10, the transmission shaft 20 and the output shaft 30 are rotatably arranged on the box body, and clutches are arranged on the input shaft 10 and the transmission shaft 20; the clutch includes shell, piston, spring, interior seat, a plurality of interior friction disc and a plurality of outer friction disc, in the one end of interior seat stretched into the shell, a plurality of outer friction discs were all installed on the shell, and a plurality of interior friction discs are all installed on interior seat, and a plurality of outer friction discs and a plurality of interior friction disc set up one by one in turn, were equipped with the oil pocket that is used for driving the piston between shell and the piston, and the spring is used for driving the piston and resets. The clutch on the input shaft 10 is a sequential clutch 40, the outer shell of the sequential clutch 40 is fixed on the input shaft 10, the outer shell of the sequential clutch 40 is fixedly provided with an input transmission gear 5, the inner seat of the sequential clutch 40 is sleeved on the input shaft 10 in a hollow manner, the inner seat of the sequential clutch 40 is fixedly provided with an input main gear 1, the oil cavity of the sequential clutch 40 is connected with the oil circuit on the input shaft 10, and after the oil pump supplies oil to the sequential clutch 40 through the oil circuit on the input shaft 10, the piston of the sequential clutch 40 moves to combine a plurality of inner friction plates and a plurality of outer friction plates, so that the input shaft 10 can drive the input main gear 1 to rotate through the sequential clutch 40; when the oil cavity of the sequential clutch 40 discharges oil outwards, the spring drives the piston to reset so that the inner friction plates and the outer friction plates are separated; the clutch on the transmission shaft 20 is a reverse clutch 50, the outer shell of the reverse clutch 50 is fixed on the transmission shaft 20, the outer shell of the reverse clutch 50 is fixedly provided with a transmission gear 4, the inner seat of the reverse clutch 50 is sleeved on the transmission shaft 20, the inner seat of the reverse clutch 50 is fixedly provided with a transmission master gear 3, the oil cavity of the reverse clutch 50 is connected with the oil circuit on the transmission shaft 20, after the oil pump supplies oil to the reverse clutch 50 through the oil circuit on the transmission shaft 20, the piston of the reverse clutch 50 moves to combine a plurality of inner friction plates with a plurality of outer friction plates, so that the transmission shaft 20 can drive the input master gear 1 to rotate through the reverse clutch 50; when the oil cavity of the reverse clutch 50 discharges oil outwards, the spring drives the piston to reset so that the inner friction plates and the outer friction plates are separated; an input shaft 10 of the gearbox is in transmission connection with an output end of a diesel engine 78 through a high-elastic coupling 76, a first shell cover 74 is fixedly mounted on a box body 71 of the gearbox, a second shell cover 77 is fixedly mounted on a machine shell of the diesel engine 78, and the first shell cover 74 is fixedly connected with the second shell cover 77. Like this, can form a whole with gear box and diesel engine fixed connection, make impact and vibration transmit between the casing of gear box and the casing of diesel engine, guaranteed the driven stability between gear box and the diesel engine.

In order to further reduce the influence of the ship's vibrations on the diesel engine and the gearbox, both the gearbox housing 71 and the diesel engine's casing are mounted to the hull of the ship by means of resilient shock absorbing pads, as shown in the present embodiment of fig. 1-7. The effect of vibration on the diesel engine and the gearbox can thus be further reduced by the elastic damping cushions. Further, the gearbox housing and the diesel engine housing are mounted on the same cushion 75. Therefore, the vibration to which the diesel engine and the gearbox are subjected and the feedback given to the ship can be more synchronous, and the influence of the vibration on the diesel engine and the gearbox is further reduced.

Because the gearbox and the diesel engine are fixed together, the gearbox needs to bear part of the weight of the diesel engine, as shown in fig. 2 and 4, the number of rib plates in the existing gearbox is small, the rib plates are arranged in sections, the existing first housing 74 is connected with the box body of the gearbox through seven hasps, and because the gearbox and the diesel engine 78 are fixedly installed together, part of the weight of the diesel engine 78 is borne by the gearbox, so that the strength of the existing gearbox and the connection strength of the gearbox and the first housing 74 cannot meet the requirements. Therefore, as shown in fig. 3 and 5, in the present embodiment, the box body includes a main box body and a box cover, one end of the main box body is provided with an open installation cavity, and the box cover is fixed on the main box body and seals the open main body; the first shell 74 comprises a connecting part 61 and a combining part 62, the connecting part 61 can be fixedly connected with the second shell 77 through bolts, one end face of the combining part 62 is a combining surface 611, the shape of the combining surface 611 is consistent with that of the box cover, and the combining part 61 and the box cover are fixedly connected through a plurality of lugs 63 to enable the combining surface to be attached to the box cover; and then promote the joint strength between box and the diesel engine, avoid appearing hollowing between case lid and the joint portion, produce the noise.

In order to further improve the strength of the box body, as shown in fig. 3, in the embodiment, a plurality of criss-cross rib plates 72 are arranged in the box body 71, and part of the rib plates can surround the inner wall of the box body for a circle and are connected end to end; therefore, the rigidity of the gearbox is increased, and the shock resistance and vibration resistance of the gearbox are improved. Furthermore, a plurality of connection points 73 are protruded on the inner wall of the box body 71, part of the connection points 73 are arranged at the staggered position of the two rib plates 72 to increase the strength of the rib plates, part of the connection points 73 can also be arranged at the head end and/or the tail end of the rib plates 72, and part of the connection points are arranged in the space formed by the plurality of rib plates 72 in a staggered mode.

The gear box still includes a plurality of couplings that are used for connecting the oil circuit, and wherein the oil circuit of gear box axle can link to each other through the pipeline of connecting the oil pump through the joint, as shown in fig. 6, conventional coupling includes bolt 91, lute connects 93, copper gasket 92, bolt 91 passes the through-hole of lute connects 93 and fixes on lute connects 93, copper gasket 92 cover further connects the shutoff with lute on bolt 91, but the gear box is under the operating mode of high impact and vibration, the pipe joint condition such as not hard up oil leak appears, and the utility model discloses in select special design's pipeline overall arrangement and adaptation high vibration operating mode's joint through the rational analysis to the operating mode. As shown in fig. 7, the fitting in this embodiment includes a through fitting 81, a nut 82, and a tapered ferrule fitting 86; one end of the straight-through connector 81 is a frustum-shaped connecting end, the nut 82 is sleeved outside the straight-through connector 81, a frustum-shaped connecting space 83 is formed between an inner hole of the nut 82 and the connecting end, one end of the taper ferrule connector 86 is inserted into the connecting space 83, the taper ferrule connector 86 is in threaded connection with the connecting end, and the inner wall of the taper ferrule connector 86 abuts against the outer wall of the connecting end of the straight-through connector 81. Like this, improve to the joint of gear box, prevent that gear box fluid from revealing, further the gear box is at the stability of high impact and high vibration's operating mode, improves the ability that the gear box shocks resistance and vibrates, swivel nut or tapering cutting ferrule connect can make the hole of tapering cutting ferrule connect support tightly with the link that directly connects, make to connect to have sealed and anticreep efficiency simultaneously. Further, an annular sealing groove is formed in the outer wall of the connecting end of the through connector 81, a first O-shaped sealing ring 84 is arranged in the sealing groove, the first O-shaped sealing ring 84 abuts against the inner wall of the taper sleeve connector 86, and a second O-shaped sealing ring 85 is also arranged between the nut 82 and the through connector 81; thereby further improving the sealing and anti-falling effects of the joint.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims (9)

1. The utility model provides an anti superelevation is strikeed, marine gear box of vibration, the power distribution box comprises a box body, and rotate input shaft (10) of installing on the box, transmission shaft (20) and output shaft (30), fixed mounting has input to pass gear (5) on input shaft (10), it installs input master gear (1) to rotate on input shaft (10), install on input shaft (10) and be used for driving input master gear (1) pivoted in the same direction as car clutch (40), fixed mounting has and passes gear (5) meshing driven transmission with the input to pass gear (4) on transmission shaft (20), it installs transmission master gear (3) to rotate on transmission shaft (20), install on transmission shaft (20) and be used for driving transmission master gear (3) pivoted clutch (50) of backing a car, fixed mounting has output from gear (2) on output shaft (30), input master gear (1) and transmission master gear (3) all mesh with output from gear (2), its characterized in that: an input shaft (10) of the gearbox is in transmission connection with an output end of a diesel engine (78) through a high-elastic coupler (76), a first shell cover (74) is fixedly mounted on a box body of the gearbox, a second shell cover (77) is fixedly mounted on a machine shell of the diesel engine (78), and the first shell cover (74) is fixedly connected with the second shell cover (77).

2. The ultrahigh impact, vibration resistant marine gearbox of claim 1 wherein: the box body of the gear box and the shell of the diesel engine (78) are both arranged on the ship body through elastic shock pads.

3. The ultrahigh impact, vibration resistant marine gearbox of claim 2 wherein: the box body of the gear box and the shell of the diesel engine (78) are arranged on the same shock pad (75).

4. The ultrahigh impact, vibration resistant marine gearbox of claim 1 wherein: a plurality of rib plates (72) which are arranged in a criss-cross mode are arranged in the box body (71).

5. The ultrahigh impact, vibration resistant marine gearbox of claim 4 wherein: part of the rib plates (72) can surround the inner wall of the box body (71) for a circle and are connected end to end.

6. The ultrahigh impact, vibration resistant marine gearbox of claim 4 wherein: a plurality of connecting points (73) are arranged in the box body (71), part of the connecting points (73) are arranged at the head end and/or the tail end of part of the rib plates (72), and part of the connecting points (73) are arranged at the staggered position of the two rib plates (72).

7. The ultrahigh impact, vibration resistant marine gearbox of claim 1 wherein: the gearbox comprises a plurality of joints for connecting pipelines, wherein the joints comprise a through joint (81), a nut (82) and a taper sleeve joint (86); the straight-through connector (81) comprises a frustum-shaped connecting end, the nut (82) is sleeved outside the straight-through connector (81), a frustum-shaped connecting space (83) is formed between an inner hole of the nut (82) and the connecting end, one end of the taper clamping sleeve connector (86) is inserted into the connecting space (83), the taper clamping sleeve connector (86) is connected with threads, and the inner wall of the taper clamping sleeve connector (86) is abutted to the outer wall of the connecting end of the straight-through connector (81).

8. The ultrahigh impact, vibration resistant marine gearbox of claim 7 further comprising: an annular sealing groove is formed in the outer wall of the connecting end of the straight-through connector (81), a first O-shaped sealing ring (84) is arranged in the sealing groove, and the inner wall of the taper clamping sleeve connector (86) is abutted by the first O-shaped sealing ring (84).

9. The ultrahigh impact, vibration resistant marine gearbox of claim 7 wherein: a second O-shaped sealing ring (85) is arranged between the nut (82) and the through joint (81).

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