CN212106877U

CN212106877U - Planetary gear assembly of marine gearbox

Info

Publication number: CN212106877U
Application number: CN201922431575.XU
Authority: CN
Inventors: 鞠舒琴; 郑友权; 徐成
Original assignee: Yangzhou Zhongzhou Power Co ltd
Current assignee: Yangzhou Zhongzhou Power Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-12-08
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a planetary gear assembly of marine gear box, including sun gear, planet carrier, gear circle and protective housing, sun gear and planetary gear mesh mutually, planetary gear meshes with the gear circle mutually, and planet carrier passes through the bearing and installs on planetary gear, and the output shaft passes the protective housing, the output shaft is installed at planet carrier's center, four ends all mesh about sun gear has planetary gear, four planetary gear all installs on planet carrier through the bearing, planetary gear all meshes with the gear circle mutually, the protective housing internally mounted in the gear circle outside has the set casing, the internally mounted of set casing outside protective housing has the cooling shell, the upper and lower both ends of protective housing all fixed mounting have the fixed plate, the input shaft is installed to the left end of sun gear. The utility model discloses lead to and set up the vacuum layer, utilize the principle that sound can not propagate at vacuum environment, prevent the noise that produces because the interact friction between the gear, the pollution of noise abatement to the environment.

Description

Planetary gear assembly of marine gearbox

Technical Field

The utility model relates to a planetary gear assembly technical field specifically is planetary gear assembly of marine gear case.

Background

Compared with the common gear transmission, the planetary gear transmission has many unique advantages, the most obvious characteristic is that the power can be split when transmitting power, and the input shaft and the output shaft are on the same horizontal line, so the planetary gear transmission is widely used in the speed reducer, the speed increaser and the speed changing device in various mechanical transmission systems, especially in the aircraft and the vehicle (especially the heavy vehicle) because of the characteristic of high load and large transmission ratio, the planetary gear plays a great role in the torque transmission of the engine, because the characteristics of the rotating speed and the torque of the engine are greatly different from the requirement of road running, the power of the engine is properly distributed to the driving wheel, the conversion can be carried out by using the characteristics of the planetary gear, but because the planetary gear has compact structure, small space and small heat dissipation area, the oil temperature rises rapidly, meanwhile, noise generated by the gears also influences the environment, and the traditional planetary gear needs to be optimized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a planetary gear assembly of marine gear box to the space of proposing in solving above-mentioned background art is little, and heat radiating area is little and lead to the oil temperature to rise comparatively fast, and the produced noise of gear also can influence the problem of environment simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: planetary gear assembly of marine gear box, including sun gear, planet carrier, gear circle and protective housing, sun gear and planet gear mesh mutually, planet gear meshes mutually with the gear circle, and planet carrier passes through the bearing and installs on planet gear, and the output shaft is installed at planet carrier's center, and the output shaft passes the protective housing, four ends all mesh planetary gear about sun gear, four planet gear all installs on planet carrier through the bearing, planet gear all meshes mutually with the gear circle, the protective housing internally mounted in the gear circle outside has the set casing, the internally mounted of protective housing outside the set casing has the cooling shell, the all fixed mounting in both ends has the fixed plate about the protective housing, the input shaft is installed to the left end of sun gear.

Preferably, the inlet opening has been inserted to the protective housing inside of set casing top, the inside cooling layer that is provided with of protective housing between set casing and the cooling shell, the outer fixed surface of protective housing below is connected with the outlet pipe, the outer fixed surface of protective housing on input shaft top installs the inlet tube, and the other end of inlet tube extends to the protective housing inside and is connected with the inlet opening.

Preferably, the cooling shell and the protective shell are internally provided with a vacuum layer, and an air exhaust hole is formed in the protective shell above the cooling shell.

Preferably, an oil storage cylinder is fixedly mounted on the outer surface of the protective shell above the output shaft, a valve is fixedly connected to the bottom end of the oil storage cylinder, the other end of the valve is fixedly connected with an oil inlet pipe, a piston is placed inside the oil storage cylinder, an empty pipe is fixedly connected to the top end of the piston, an oil inlet pushing handle is mounted on the top end of the empty pipe in a threaded mode, and the oil inlet pipe is arranged on the fixed shell.

Preferably, a piston is placed in the oil storage cylinder, an empty pipe is fixedly connected to the top end of the piston, an oil inlet pushing handle is installed on the top end of the empty pipe in a threaded mode, and an oil inlet pipe is arranged on the fixed shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. because the planetary gear has compact structure, small space and small heat dissipation area, the oil temperature rises quickly, and the heat generated by the gear during the gear operation is absorbed by the cooling layer, so that the service life of the gear is protected.

2. Through setting up the vacuum layer, utilize the principle that sound can not propagate in vacuum environment, come the noise that prevents to produce because the interact friction between the gear, the pollution of noise to the environment is reduced.

3. Traditional planetary gear assembly always will unpack apart when maintenance personal wants to add lubricating oil or other oil for the gear and add, refuels the structure and can accomplish partly with unpack apart just can refuel through setting up, great reduction staff's operating pressure.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

FIG. 2 is a schematic front view of the structure of the present invention;

fig. 3 is a schematic left side view of the structure of the present invention;

fig. 4 is a schematic sectional view of a part of the structure of the present invention.

In the figure: 1. a sun gear; 2. a planet carrier; 3. a planetary gear; 4. a gear ring; 5. a stationary case; 6. a cooling layer; 7. a water inlet hole; 8. a vacuum layer; 9. cooling the shell; 10. a fixing plate; 11. a water inlet pipe; 12. a water outlet pipe; 13. an oil storage cylinder; 14. a valve; 15. an input shaft; 16. an output shaft; 17. a protective shell; 18. oil is fed to the pushing handle; 19. a piston; 20. an oil inlet pipe; 21. empty pipe; 22. and (4) air exhaust holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment:

a planetary gear assembly of a marine gear box comprises a sun gear 1, a planetary gear carrier 2, a gear ring 4 and a protective shell 17, wherein the sun gear 1 is rotatably arranged on the gear box, the sun gear 1 is meshed with a planetary gear 3, the planetary gear 3 is meshed with the gear ring 4, the planetary gear carrier 2 is rotatably provided with the planetary gear 3 through a bearing, an output shaft 16 is arranged at the center of the planetary gear carrier 2, the output shaft 16 penetrates through the protective shell 17, the planetary gear 3 is respectively meshed at the upper end, the lower end, the left end, the right end, the upper end, the right end, the left end, the right end, the, when the gear ring 4 needs to be replaced, the gear ring is pulled out, the cooling shell 9 is arranged inside the protective shell 17 on the outer side of the fixed shell 5, the fixed plates 10 are fixedly arranged at the upper end and the lower end of the protective shell 17, and the input shaft 15 is arranged at the left end of the sun gear 1. Specifically, (1) as shown in fig. 1, a protrusion is formed on the outer wall of the gear ring 4, a limit groove with a size matched with that of the protrusion is formed on the inner wall of the fixing shell, and the protrusion is clamped in the limit groove and used for realizing the connection between the gear ring 4 and the fixing shell; (2) the connection relationship between the sun gear 1, the planet gear carrier 2, the planet gear 3 and the gear ring 4 is the prior art, and the present invention is not described in detail.

The inlet opening 7 has been inserted to the protective housing 17 inside of set casing 5 top, protective housing 17 inside between set casing 5 and the cooling shell 9 is provided with cooling layer 6, protective housing 17 external surface fixed connection of output shaft 16 below goes out water pipe 12 (communicates in cooling layer), the protective housing 17 external surface fixed mounting on 15 tops of input shaft has inlet tube 11, and the other end of inlet tube 11 extends to protective housing 17 inside and is connected with inlet opening 7, because planetary gear compact structure, the space is little, heat radiating area is little and lead to the oil temperature to rise comparatively fast, so through setting up the cooling layer, absorb away the produced heat of gear work when gear work, thereby the life of protection gear.

The inside of cooling shell 9 and protective housing 17 is provided with vacuum layer 8, and aspirating hole 22 has been seted up to protective housing 17 inside of cooling shell 9 top, through setting up vacuum layer, utilizes the sound can not be at the principle that vacuum environment can not propagate, stops because the noise that produces of interact friction between the gear, and the noise abatement is to the pollution of environment.

The outer fixed surface of the protective housing 17 of output shaft 16 top installs an oil storage section of thick bamboo 13, the bottom fixedly connected with valve 14 of an oil storage section of thick bamboo 13, and the other end of valve 14 with advance oil pipe 20 fixed connection, piston 19 has been placed to the inside of an oil storage section of thick bamboo 13, piston 19's the empty pipe 21 of top fixedly connected with, the oil feed pushing hands 18 is installed to the top screw thread of empty pipe 21, it advances oil pipe 20 to set up on the set casing 5, traditional planetary gear assembly, want to unpack apart when adding lubricating oil or other oil for the gear always at maintenance personal, refuel the structure can accomplish partly with just can refueling taking apart through setting up, great reduction staff's operating pressure.

A piston 19 is placed in the oil storage cylinder 13, an empty pipe 21 is fixedly connected to the top end of the piston 19, an oil inlet pushing handle 18 is installed at the top end of the empty pipe 21 in a threaded mode, an oil inlet pipe 20 is arranged on the fixed shell 5, when solid oil is injected, the solid oil can be pressed into the gear set through pressing the oil inlet pushing handle, and the workload of maintenance personnel is reduced.

The working principle is as follows: when the product is in use, the staff closes the valve of outlet pipe 12 and pours the water that will be used for cooling into from inlet tube 11 from the inlet opening 7 in flowing into cooling layer 6, stops pouring water when water spills over, closes inlet tube 11 again, when the liquid in cooling layer 6 need be discharged, opens the valve of outlet pipe 12 and can flow to play the hypothermia, protection gear.

The staff just dismantles oil feed pushing hands 18 when will pour into lubricating oil or other oils into for the gear, because the inside of hollow pipe 21 is hollow and puts the required funnel of oiling in hollow pipe 21 upper end and can annotate the oil, the oil of annotating can advance inside oil pipe 20 flows into the gear, again with oil feed pushing hands 18 adorn press oil feed pushing hands 18 fully will have and pour into inside the gear, the running gear makes oil can be abundant and the gear running-in again, reduces the damage of gear.

Noise generated by the gear can be reduced through the vacuum layer 8, and workers can pump air in front of the vacuum layer 8 from the air pumping holes 22 to be close to a vacuum state to reduce the noise through a sound transmission medium, so that noise pollution is reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Planetary gear assembly of marine gear box, including sun gear (1), planet carrier (2), ring gear (4) and protective housing (17), sun gear (1) meshes with planetary gear (3) mutually, planetary gear (3) mesh with ring gear (4) mutually, and planet carrier (2) are installed on planetary gear (3) through the bearing, input shaft (15) are installed to the left end of sun gear (1), and protective housing (17) are passed in output shaft (16), its characterized in that are installed to the center of planet carrier (2): four ends all mesh about the upper and lower of sun gear (1) have planetary gear (3), planetary gear (3) all mesh mutually with gear circle (4), protective housing (17) internally mounted in the gear circle (4) outside has set casing (5), the internally mounted of protective housing (17) in the set casing (5) outside has cooling shell (9), the upper and lower both ends of protective housing (17) all fixed mounting have fixed plate (10).

2. The planetary gear assembly of a marine gearbox according to claim 1, wherein: the water inlet hole (7) is inserted into the protective housing (17) above the fixed housing (5), the cooling layer (6) is arranged inside the protective housing (17) between the fixed housing (5) and the cooling housing (9), the outer surface of the protective housing (17) below the output shaft (16) is fixedly connected with the water outlet pipe (12), the outer surface of the protective housing (17) on the top end of the input shaft (15) is fixedly provided with the water inlet pipe (11), and the other end of the water inlet pipe (11) extends to the inside of the protective housing (17) and is connected with the water inlet hole (7).

3. The planetary gear assembly of a marine gearbox according to claim 1, wherein: the vacuum layer (8) is arranged inside the cooling shell (9) and the protective shell (17), and the air suction hole (22) is formed inside the protective shell (17) above the cooling shell (9).

4. The planetary gear assembly of a marine gearbox according to claim 1, wherein: an oil storage cylinder (13) is fixedly mounted on the outer surface of the protective shell (17) above the output shaft (16), a valve (14) is fixedly connected to the bottom end of the oil storage cylinder (13), and the other end of the valve (14) is fixedly connected with an oil inlet pipe (20).

5. The planetary gear assembly of a marine gearbox according to claim 4, wherein: piston (19) have been placed to the inside of oil storage section of thick bamboo (13), the top fixedly connected with hollow tube (21) of piston (19), oil feed pushing hands (18) are installed to the top screw thread of hollow tube (21), set up oil feed pipe (20) on set casing (5).