CN105041982B - A ship lift and its reducer - Google Patents

Abstract

The invention discloses a kind of decelerator of ship lift, including casing and the horizontal synchronization axle for being arranged at the box house, also include the primary speed-down mechanism being arranged on the cabinet exterior, the primary speed-down mechanism includes reducer input shaft, planetary reducer and gear shaft, the gear shaft is connected with the output shaft of the planetary reducer, and the gear shaft runs through the outer wall of the casing；Between the gear shaft and the horizontal synchronization axle by gearratio be 1:1 gear mesh transmission.The decelerator of ship lift disclosed in this invention, the speed reducing ratio of primary speed-down mechanism is higher, without additionally setting reducing gear in box house, therefore can correspondingly reduce the size of casing；And by speed than being 1 between gear shaft and horizontal synchronization axle:1 gear mesh transmission, the appearance and size of decelerator can be reduced as far as possible away from the case of in identical central.The invention also discloses a kind of ship lift for including above-mentioned decelerator, its advantage are as described above.

Description

A ship lift and its reducer

technical field

The invention relates to the fields of mechanical engineering and process engineering, in particular to a speed reducer of a ship lift. The present invention also relates to a ship lift comprising the above speed reducer.

Background technique

With the development of China's machinery industry, various machinery and equipment have been widely used.

Taking the ship lift as an example, the ship lift is a mechanical device that uses the power of a mechanical device to lift or lower a ship, overcome the concentrated water level drop on the channel, and make the ship pass the dam smoothly. The hoisting system of the ship lift is mainly composed of 4 winch hoists connected to each other through a ring-shaped closed synchronous shaft system. Each hoist lifts a group of hull lifting points, and one or two reducers are respectively installed in each hoist, and the reel is driven by the reducer to run.

The drive system of the ship lift is mainly composed of motor, reducer, coupling and synchronous shaft. Among them, the reducer is driven by a motor, and a total of 4 or 8 reducers are connected into a closed loop through a synchronous shaft system. Under normal circumstances, the synchronous shaft system of the drive system is idling, that is, only the speed is transmitted but not the torque; when more than 1/4 of the motors in the drive system are accidentally damaged, the remaining 3/4 of the motors will be transmitted simultaneously through the closed-loop synchronous shaft system The torque and speed required for the boat lift lifting system.

The reducer of the ship lift is the most critical equipment of the lifting system of the hydropower station, which has the characteristics of large output torque, large transmission ratio, large shape and structure size, etc. Since the input stage of the reducer not only needs to consider the torque output under normal conditions, but also needs to consider that when more than 1/4 of the motor in the lifting system is damaged, the synchronous shaft torque and normal torque can be output at the same time, relative to the power transmission chain of the entire reducer Therefore, the reliability design between the input stage and the synchronous shaft is particularly important.

At present, the speed reducer of the ship lift usually adopts a gear transmission mechanism, and adopts a parallel stage gear transmission. In the prior art, in order to reduce the overall size and overall weight of the reducer, the power input stage is generally arranged directly below the synchronous shaft, and a single-stage gear mechanism is used to transmit torque to the synchronous shaft.

However, due to the high speed requirements of the synchronous shaft (less than 120rpm), the transmission ratio of the input stage reduction is required to be relatively large (generally greater than 6.3), so the large gear in the single-stage gear mechanism will have to increase its own modulus. In this way, it will easily interfere with the adjacent gear shaft and cause accidents; and in order to avoid the large gear in the input stage reduction gear from interfering with the adjacent gear shaft due to its oversized size, in the prior art, it is often It is solved by increasing the center distance, but this will lead to a corresponding increase in the overall size of the reducer, which is not conducive to reducing the size of the reducer.

Contents of the invention

The purpose of the present invention is to provide a reducer for a ship lift, which can solve the problem of increasing the overall structural size of the reducer caused by the space limitation between the synchronous shaft and the input shaft while improving the reliability of the work performance of the input stage of the reducer question. Another object of the present invention is to provide a ship lift including the above speed reducer.

In order to solve the above technical problems, the present invention provides a speed reducer for a ship lift, which includes a box body and a horizontal synchronous shaft arranged inside the box body, and also includes a primary speed reduction mechanism arranged on the outer wall of the box body, The primary reduction mechanism includes a reducer input shaft, a planetary gear reducer and a gear shaft, the gear shaft is connected to the output shaft of the planetary gear reducer, and the gear shaft runs through the outer wall of the box; the The transmission ratio is 1:1 between the gear shaft and the horizontal synchronous shaft;

The planetary gear reducer includes a sun gear, a planetary gear, a planetary carrier and a ring gear, and the input shaft of the reducer drives the sun gear to run, and the planetary gears are arranged on the planetary carrier, and are simultaneously connected with the The sun gear meshes with the ring gear, the ring gear is fixed, and the output shaft of the planet carrier is connected with the gear shaft;

The gear pair includes two helical spur gears with the same number of teeth and meshing with each other;

It also includes a vertical synchronous shaft horizontally arranged in the box and perpendicular to the horizontal synchronous shaft, the vertical synchronous shaft and the horizontal synchronous shaft are driven by a pair of bevel gears meshing with each other; and the bevel gear The transmission ratio of the pair is 1:1;

It also includes a two-stage deceleration mechanism arranged inside the box, the two-stage deceleration mechanism includes a first deceleration shaft and a second deceleration shaft arranged side by side and parallel to the horizontal synchronous shaft, and the horizontal synchronous shaft is connected to the horizontal synchronous shaft The first reduction shaft is transmitted through a gear pair I with a transmission ratio greater than 1, and the first reduction shaft and the second reduction shaft are also transmitted through a gear pair II with a transmission ratio greater than 1;

Both ends of the second reduction shaft are respectively provided with a first split pinion and a second split pinion for equally splitting the input power;

It also includes a first transmission shaft and a second transmission shaft arranged in parallel in the box, the first transmission shaft and the second transmission shaft are parallel to the second reduction shaft, and the first transmission shaft and the second transmission shaft The plane where the two transmission shafts are located is perpendicular to the plane where the first reduction shaft and the second reduction shaft are located; one end of the first transmission shaft is provided with a first splitter bull gear for meshing with the first splitter pinion, so One end of the second transmission shaft is provided with a second split bull gear for meshing with the second split pinion;

It also includes a reducer output shaft arranged inside the box and parallel to the second reduction shaft, the output stage gear is arranged on the reducer output shaft, and the first transmission shaft is also provided with There is a first split pinion of the output stage, and a second split pinion of the output stage is also arranged on the second transmission shaft, and the first split pinion of the output stage and the second split pinion of the output stage are simultaneously connected with the output stage large gear meshing;

The output stage large gear is arranged at the middle position of the output shaft of the reducer, and the output stage first split pinion is arranged at the middle position of the first transmission shaft, and the output stage second split pinion It is arranged at the middle position of the second transmission shaft.

The present invention also provides a ship lift, including a fuselage and a speed reducer arranged in the fuselage, wherein the speed reducer is the speed reducer described in the preceding item.

The ship lift reducer provided by the present invention includes a box body and a horizontal synchronous shaft arranged inside the box body, and also includes a first-stage reduction mechanism arranged on the outer wall of the box. The first-stage reduction mechanism includes the input shaft of the reducer, Planetary gear reducer and gear shaft. The gear shaft is connected to the output shaft of the planetary gear reducer, and the gear shaft runs through the outer wall of the box, and the gear shaft and the horizontal synchronous shaft are also driven by a gear pair with a transmission ratio of 1:1. Among them, the horizontal synchronous shaft is an important part of the synchronous shaft system of the ship lift reducer, and is generally arranged horizontally inside the reducer box. The input shaft of the reducer is the input shaft of the primary reduction mechanism of the reducer, and it is also the input shaft of the reducer. The source power flows in from the input shaft of the reducer. The planetary gear reducer is a reduction device with a high transmission ratio composed of a planetary gear mechanism. The input shaft of the reducer is first connected to it, which is equivalent to the power input of the planetary gear reducer. The gear shaft is the output shaft of the first-stage reduction mechanism, which is connected to the power output shaft of the planetary gear reducer, so that the power is transmitted to the gear shaft after being "decelerated and increased in torque" by the planetary gear reducer. Most of the entities of the first-stage reduction mechanism are on the outer wall of the box body, while the gear shaft runs through the outer wall of the box body, and a part extends into the inside of the box body. And this part extends into the gear shaft inside the box body and the horizontal synchronous shaft arranged in the box body is transmitted through a gear pair, and the transmission ratio of the gear pair is 1:1. Due to the high deceleration ratio of the planetary gear reducer, the power is transmitted to the gear shaft after the "deceleration and torque increase" effect of the first-stage deceleration mechanism arranged on the outer wall of the box, and then transmitted to the horizontal synchronous shaft, so The speed ratio between the horizontal synchronous shaft and the input shaft of the reducer can meet the requirements, and there is no need to continue to install an additional reduction mechanism parallel to the horizontal synchronous shaft inside the box to meet the speed ratio requirements between the input shaft of the reducer, so it can be Reduce the size of the box accordingly. Moreover, the transmission ratio of the gear pair set between the gear shaft and the horizontal synchronous shaft is 1:1, so that the size of the gear pair can be easily controlled, and in the case of the same center distance, the gear set on the horizontal synchronous shaft is avoided. Interfere with the rest of the adjacent gear shafts, so as to achieve the purpose of controlling the overall size of the reducer. To sum up, the reducer of the ship lift provided by the present invention can reduce the size of the box correspondingly through the function of the first-stage reduction mechanism, and at the same time control the overall size of the reducer so that it will not be too large.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a schematic diagram of the overall structure of the first specific embodiment provided by the present invention;

Fig. 2 is a specific structural schematic diagram of the planetary gear reducer shown in Fig. 1;

Fig. 3 is a schematic diagram of the overall structure of the second specific embodiment provided by the present invention;

Fig. 4 is a schematic cross-sectional view along the line A-A shown in Fig. 3 .

Wherein, in Fig. 1-Fig. 2:

Box - 1, horizontal synchronous shaft - 2, reducer input shaft - 3, planetary gear reducer - 4, sun gear - 401, planetary gear - 402, planet carrier - 403, ring gear - 404, gear shaft - 5, Gear pair - 6, vertical synchronization shaft - 7.

In Fig. 3-Fig. 4:

The first reduction shaft—8, the gear pair I—801, the second reduction shaft—9, the gear pair II—901, the first diverter pinion—902, the second diverter pinion—903, the first transmission shaft—10, the second First shunt bull gear—101, first shunt pinion of output stage—102, second drive shaft—11, second shunt bull gear—111, second shunt pinion of output stage—112, reducer output shaft—12, output Stage bull gear—121.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to FIG. 1 , which is a schematic diagram of the overall structure of a first specific embodiment provided by the present invention.

In the first specific embodiment provided by the present invention, the speed reducer of the ship lift mainly includes a box body 1, a horizontal synchronous shaft 2 arranged inside the box body 1, and a first-stage speed reducer arranged on the outer wall of the box body 1 mechanism. Among them, the primary reduction mechanism mainly includes a reducer input shaft 3 , a planetary gear reducer 4 and a gear shaft 5 .

Box 1 is the overall load-bearing part of the reducer of the ship lift, and various parts related to the reducer are installed inside. Generally speaking, box 1 can be divided into an upper box and a lower box, which respectively hold different parts.

The horizontal synchronous shaft 2 is horizontally arranged inside the box body 1 and is an important component of the synchronous shaft system of the ship lift reducer.

The primary reduction mechanism is the core component of the reducer of the ship lift, and it is also the front end component. It is arranged on the outer wall of the box body 1, and generally can be fixed to the box body 1 by connecting bolts. The primary reduction mechanism mainly includes a reducer input shaft 3 , a planetary gear reducer 4 and a gear shaft 5 .

Wherein, the reducer input shaft 3 is the power input part of the primary reduction mechanism, and also the power input part of the whole reducer. The power of the reducer input shaft 3 is mainly transmitted to the planetary gear reducer 4 .

As shown in FIG. 2 , FIG. 2 is a schematic structural diagram of the planetary gear reducer shown in FIG. 1 .

The planetary gear reducer 4 is a "deceleration and torque increase" device with a large transmission ratio, and its reduction ratio can reach 4-10. Preferably, the planetary gear reducer 4 includes a sun gear 401 , a planetary gear 402 , a planet carrier 403 and a ring gear 404 . In order to achieve a higher reduction ratio, the reducer input shaft 3 is connected to the shaft of the sun gear 401, and drives the sun gear 401 to rotate; at the same time, the ring gear 404 is fixed, that is, braking; and the planetary gear 402 is set on the planet carrier 403 and meshes with the sun gear 401 and the ring gear 404 at the same time; while the output shaft of the planet carrier 403 is connected with the subsequent gear shaft 5 . In this way, the sun gear 401 is used as the active part, the power is input from the sun gear 401, the ring gear 404 brakes, the planet carrier 403 is used as the follower, and the power is output from the planet carrier 403. According to the principle of speed ratio, the maximum deceleration can be achieved ratio transmission. Of course, the structure of the planetary gear reducer 4 is not limited to the above-mentioned structural form, and the rest, such as the ring gear 404 as the active part, the sun gear 401 for braking, and the form of the planet carrier 403 output, or the sun gear 401 as the active part, the planet carrier 403 brakes, and the output form of the ring gear 404 can also be adopted.

Regardless of the structure of the planetary gear reducer 4, the gear shaft 5 is always connected to its output shaft, so that the power reaches the gear shaft 5 from the input shaft 3 of the reducer through the "deceleration and torque increase" of the planetary gear reducer 4. Although the gear shaft 5 is a part of the first-stage reduction mechanism, it is not completely arranged on the outer wall of the casing 1 , it passes through the outer wall of the casing 1 , and a part stretches into the inside of the casing 1 . And the part protruding into the inside of the box body 1 is also transmitted to the horizontal synchronous shaft 2 through the gear pair 6. The transmission ratio of the gear pair 6 is 1:1, so that the power is transmitted to the horizontal synchronous shaft 2. Here, preferably, the gear pair 6 includes two helical spur gears with the same number of teeth and intermeshing with each other. In this way, the gear pair 6 has a stronger bearing capacity and higher power transmission efficiency. Of course, the gear pair 6 does not necessarily only refer to helical spur gears, and other spur gears such as spur gears can also be used.

To sum up, the speed reducer of the ship lift provided by the present invention has a high speed reduction ratio of the planetary gear speed reducer 4, so the power passes through the "deceleration and torque increase" of the first-stage speed reduction mechanism arranged on the outer wall of the box body 1. After the effect, it is transmitted to the gear shaft 5, and then transmitted to the horizontal synchronous shaft 2, so that the speed ratio between the horizontal synchronous shaft 2 and the input shaft 3 of the reducer can meet the actual assembly requirements, and there is no need to continue inside the box 1 An additional speed reduction mechanism is arranged parallel to the horizontal synchronous shaft 2 to meet the speed ratio requirement with the input shaft 3 of the speed reducer, so the size of the box body 1 can be reduced accordingly. Moreover, the transmission ratio of the gear pair 6 provided between the gear shaft 5 and the horizontal synchronous shaft 2 is 1:1, so that the size of the gear pair 6 can be easily controlled, and in the case of the same center distance, it can be avoided to be set in the horizontal synchronous shaft. The gear on shaft 2 interferes with the other adjacent gear shafts, so as to achieve the purpose of controlling the overall size of the reducer. Therefore, the speed reducer of the ship lift provided by the present invention can reduce the size of the box body 1 correspondingly through the action of the primary speed reduction mechanism, and at the same time control the overall size of the speed reducer so that it will not be too large.

Further, in order to strengthen the power linkage between the speed reducers of the ship lift, this embodiment also sets a vertical synchronous shaft 7 inside the box body 1 . The vertical synchronous shaft 7 is horizontally arranged in the box body 1 as the horizontal synchronous shaft 2 , while the vertical synchronous shaft 7 is also perpendicular to the horizontal synchronous shaft 2 . And the transmission between the vertical synchronous shaft 7 and the horizontal synchronous shaft 2 is also through a pair of bevel gears meshing with each other, and the transmission ratio of the pair of bevel gears is 1:1. With such an arrangement, on the basis of ensuring the normal transmission performance between the horizontal synchronous shaft 2 and the vertical synchronous shaft 7, the load bearing capacity of the reducer of the ship lift can also be improved to a certain extent.

This embodiment also provides a ship lift, which includes a fuselage and a speed reducer arranged in the fuselage, wherein the speed reducer is the same as that described above, and will not be repeated here.

Please refer to FIG. 3 , which is a schematic diagram of the overall structure of a second specific embodiment provided by the present invention.

The second specific embodiment provided by the present invention has been improved on the basis of the first specific embodiment, specifically: the first deceleration shaft 8, the second deceleration shaft 9, the first transmission shaft 10, the Two power transmission shafts 11 and reducer output shaft 12 and other components. The remaining parts of the embodiments provided by the present invention are the same as the foregoing content, and will not be repeated here.

In the second specific embodiment provided by the present invention, in order to further improve the power transmission chain of the speed reducer, and at the same time further control the external dimensions of the speed reducer of the ship lift, two stage reduction mechanism. The two-stage deceleration mechanism includes a first deceleration shaft 8 and a second deceleration shaft 9 arranged side by side and parallel to the horizontal synchronous shaft 2, that is, the horizontal synchronous shaft 2, the first deceleration shaft 8 and the second deceleration shaft 9 They are parallel to each other and arranged horizontally in the box body 1, and the connection between the three is mainly completed through gear transmission. Specifically, the transmission between the horizontal synchronous shaft 2 and the first reduction shaft 8 is through a gear pair I801 with a transmission ratio greater than 1, and the transmission between the first reduction shaft 8 and the second reduction shaft 9 is also through a gear pair II901 with a transmission ratio greater than 1. transmission. That is to say, the power of the horizontal synchronous shaft 2 is transmitted to the first reduction shaft 8 through the gear pair I801, and undergoes a deceleration and torque increase effect; then the power is transmitted from the first reduction shaft 8 to the second reduction shaft 9, again Experience the effect of deceleration and torque increase. In this way, after the power is transmitted from the horizontal synchronous shaft 2, it will successively pass through two parallel deceleration and torque increasing effects (of course, the power has experienced the deceleration and torque increasing effect of the first-stage reduction mechanism before reaching the horizontal synchronous shaft 2).

In addition, in order to better distribute the input power and reduce the coincidence of the reduction shafts, in this embodiment, a first splitter pinion 902 and a second splitter pinion 903 are respectively arranged at both ends of the second reduction shaft 9 . The first split pinion 902 and the second split pinion 903 are mainly used for splitting and outputting the power transmitted to the second reduction shaft 9. Generally, in order to balance the forces at both ends of the second reduction shaft 9 and The service life is equal, the first split pinion 902 and the second split pinion 903 split the input power or power equally.

As shown in FIG. 4 , FIG. 4 is a schematic cross-sectional view along the A-A direction shown in FIG. 3 .

Continuing from the above, the present embodiment is also provided with a first transmission shaft 10 and a second transmission shaft 11 in the box body 1, the first transmission shaft 10 and the second transmission shaft 11 are parallel to the second reduction shaft 9, and the first The plane where the transmission shaft 10 and the second transmission shaft 11 are located is perpendicular to the plane where the first reduction shaft 8 and the second reduction shaft 9 are located. That is to say, the first transmission shaft 10 and the second transmission shaft 11 are also arranged side by side with the horizontal synchronization shaft 2 , the first reduction shaft 8 and the second reduction shaft 9 , but both the first transmission shaft 10 and the second transmission shaft 11 They are arranged side by side, and their projections on the horizontal plane overlap; if the second reduction shaft 9 is the center of the horizontal plane, then the first transmission shaft 10 and the second transmission shaft 11 are located obliquely above or below it, respectively. In addition, one end of the first transmission shaft 10 is provided with a first split gear 101, and one end of the second transmission shaft 11 is provided with a second split gear 111, the first split gear 101 is mainly used for The first split pinion 902 on the second reduction shaft 9 meshes, while the second split large gear 111 is mainly used to mesh with the aforementioned second split pinion 903 on the second reduction shaft 9 . In this way, after the power is equally divided on the second reduction shaft 9 through the first split pinion 902 and the second split pinion 903, the power is connected to the first split bull gear 101 and the second split bull gear 111 respectively through the two split pinions. The meshing is transmitted to the first transmission shaft 10 and the second transmission shaft 11 arranged side by side inside the box body 1 .

Following the above, the design of the power output stage of the ship lift reducer is also important. In this embodiment, a reducer output shaft 12 is provided inside the box body 1 . Similarly, the reducer output shaft 12 is equiaxially parallel to the horizontal synchronous shaft 2 and is close to the second reduction shaft 9 . In order to successfully complete the process of power from input to output, the present embodiment is provided with an output-stage bull gear 121 on the output shaft 12 of the reducer. Generally, the output-stage bull gear 121 can be arranged at the central position of the output shaft 12 of the reducer. It is convenient for force balance and moment of inertia balance. Correspondingly, the first transmission shaft 10 is also provided with an output stage first split pinion 102 , while the second transmission shaft 11 is also provided with an output stage second split pinion 112 , and the output stage first split pinion 102 And the second split pinion 112 of the output stage meshes with the aforementioned large gear 121 of the output stage at the same time. Similarly, the first split pinion 102 of the output stage can also be arranged at the middle position of the first transmission shaft 10 , and the second split pinion 112 of the output stage can also be arranged at the middle position of the second transmission shaft 11 . So set, the power is transmitted to the first transmission shaft 10 and the second transmission shaft 11 on the second reduction shaft 9 through two shunt pinion gears, and the power drives the first transmission shaft 10 and the second transmission shaft 11 to rotate, At the same time, it also drives the output stage first shunt pinion 102 and the output stage second shunt pinion 112 arranged on it to mesh with the output stage bull gear 121 on the output shaft 12 of the reducer at the same time, and finally transmits the power to the output of the reducer. On the shaft 12, power output is carried out to lift the ship.

In summary, on the basis of the first specific embodiment, this embodiment mainly adds the first reduction shaft 8, the second reduction shaft 9, the first transmission shaft 10, the second transmission shaft 11 and the output shaft 12 of the reducer and other parts. Through the two-stage "deceleration and torque increase" effect of the first deceleration shaft 8 and the second deceleration shaft 9, the input torque is further enhanced, the value is large, and the output is enough to easily complete the lifting operation of the ship; at the same time, the second deceleration shaft 9 The larger torque is evenly divided into two shares through the first split pinion 902 and the second split pinion 903; then the first split bull gear 101 and the second split gear 101 are respectively set on the first transmission shaft 10 and the second transmission shaft 11 The two split bull gears 111, through the simultaneous meshing of the first split pinion 902 and the first split bull gear 101, and the second split pinion 903 and the second split bull gear 111, the power torque equally divided into two shares will be transmitted to the first transmission shaft 10 and the second transmission shaft 11; then on the first transmission shaft 10 and the second transmission shaft 11, the first split pinion 102 of the output stage and the second split pinion 112 of the output stage are set respectively, and The output stage bull gear 121 is set on the output shaft 12 of the reducer. Through the simultaneous meshing of the output stage first shunt pinion 102 and the output stage second shunt pinion 112 with the output stage bull gear 121, two equally divided power torques are realized. Simultaneously merge transmission on the deceleration output shaft 12, carry out power output at last. Since the power transmission chain of this embodiment adopts a two-stage gear shunt transmission structure, the torque transmission capacity of the speed reducer is correspondingly increased under the same overall size of the speed reducer, and the large gear 121 of the output stage can be optimized through the shunt design Design parameters, reduce the overall size of the reducer accordingly, improve the processing performance of the gear, and meet the characteristic requirements of the extra-large ship lift system, such as high, precise, sharp, and compact structure.

This embodiment also provides a ship lift, which includes a fuselage and a speed reducer arranged in the fuselage, wherein the speed reducer is the same as the foregoing, and will not be repeated here.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (2)

1. a kind of decelerator of ship lift, including casing (1) and the horizontal synchronization axle (2) for being arranged at the casing (1) inside, its It is characterised by, in addition to the primary speed-down mechanism being arranged on the casing (1) outer wall, the primary speed-down mechanism include slowing down Device input shaft (3), planetary reducer (4) and gear shaft (5), the gear shaft (5) and the planetary reducer (4) Output shaft be connected, and the gear shaft (5) run through the casing (1) outer wall；The gear shaft (5) and the horizontal synchronization Between axle (2) by gearratio be 1:1 gear mesh (6) transmission；

The planetary reducer (4) includes sun gear (401), planetary gear (402), planet carrier (403) and gear ring (404), And the reducer input shaft (3) drives sun gear (401) operating, the planetary gear (402) is arranged on the planet carrier (403) on, and engaged simultaneously with the sun gear (401) and gear ring (404) respectively, the gear ring (404) is fixed, the planet The output shaft of frame (403) is connected with the gear shaft (5)；

The gear mesh (6) includes that two numbers of teeth are equal and intermeshing helical gears；

Also include being horizontally placed in the casing (1) and the vertical synchronization axle (7) perpendicular with the horizontal synchronization axle (2), By intermeshing bevel gear to transmission between the vertical synchronization axle (7) and the horizontal synchronization axle (2)；And the cone tooth The gearratio of wheel pair is 1:1；

Also include the two reduction gear for setting the casing (1) internal, the two reduction gear includes being arranged side by side and putting down Row in the first deboost axle (8) and the second deboost axle (9) of the horizontal synchronization axle (2), and the horizontal synchronization axle (2) with it is described It is driven between first deboost axle (8) by gear mesh I (801) of the gearratio more than 1, first deboost axle (8) and described the It is driven between two deboost axles (9) also by gear mesh II (901) of the gearratio more than 1；

The both ends of second deboost axle (9) be separately provided for respectively input power first shunting little gear (902) and Second shunting little gear (903)；

Also include the first power transmission shaft (10) and second driving shaft (11) being juxtaposed in the casing (1), described first passes Moving axis (10) and second driving shaft (11) are each parallel to second deboost axle (9), and first power transmission shaft (10) and second Plane where power transmission shaft (11) is perpendicular to plane where first deboost axle (8) and the second deboost axle (9)；First transmission One end of axle (10) is provided with the first shunting gear wheel (101) for being meshed with the described first shunting little gear (902), institute The one end for stating second driving shaft (11) is provided with the second shunting canine tooth for being used to be meshed with the described second shunting little gear (903) Take turns (111)；

Also include being arranged at the casing (1) inside and the reducer output shaft (12) parallel with second deboost axle (9), Be equipped with output stage gear wheel (121) is set on the reducer output shaft (12), is additionally provided with first power transmission shaft (10) Output stage first shunts little gear (102), and output stage second is additionally provided with the second driving shaft (11) and shunts little gear (112), the output stage first shunt little gear (102) and the shunting little gear of output stage second (112) and meanwhile with the output Level gear wheel (121) is meshed；

The output stage gear wheel (121) is arranged at the centre position of the reducer output shaft (12), and the output stage One shunting little gear (102) is arranged on the centre position of first power transmission shaft (10), and the output stage second shunts small tooth Wheel (112) is arranged on the centre position of the second driving shaft (11).

2. a kind of ship lift, including fuselage and the decelerator that is arranged in the fuselage, it is characterised in that the decelerator is power Profit requires the decelerator described in 1.