CN211667103U - Marine gearbox with extra-large speed ratio - Google Patents
Marine gearbox with extra-large speed ratio Download PDFInfo
- Publication number
- CN211667103U CN211667103U CN201921575966.2U CN201921575966U CN211667103U CN 211667103 U CN211667103 U CN 211667103U CN 201921575966 U CN201921575966 U CN 201921575966U CN 211667103 U CN211667103 U CN 211667103U
- Authority
- CN
- China
- Prior art keywords
- shaft
- gear
- input
- transmission
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- General Details Of Gearings (AREA)
- Structure Of Transmissions (AREA)
Abstract
A gear box with extra-large speed ratio for ship is composed of box body, input axle part, drive axle part, intermediate axle part, output axle part and oil distributor. The front ends of the input shaft part and the transmission shaft part are provided with clutches. The rear end of the input shaft is sleeved with an input driving gear in an empty mode, the front end of the input shaft is sleeved with an input transmission gear with a clutch shell in a hot mode, the input transmission gear is meshed with a transmission gear which is sleeved on a transmission shaft in a hot mode and is also provided with the clutch shell in a same mode, and the rear end of the transmission shaft is also sleeved with a transmission driving gear in an empty mode; the speed ratio control device has the characteristics of large speed ratio range, advanced indexes, low cost, compact structural arrangement, attractive appearance, good reliability, convenience in maintenance, installation and centering and the like.
Description
Technical Field
The utility model relates to a gear box for a ship with especially big velocity ratio with function of reversing, separation and reunion, speed reduction and bearing screw thrust is applicable to boats and ships main propulsion driving system, mainly used work ship and big power trawler, belongs to boats and ships power advancing system's transmission field.
Background
One of the existing marine gear boxes with the same power adopts a three-shaft five-gear transmission layout, and has the functions of reversing, clutching and speed reduction, two sets of clutches for reversing are arranged in parallel, the gear box is subjected to primary speed reduction, and the maximum speed ratio of the gear box is 6: 1. And the other type adopts two-stage speed reduction, two sets of hydraulic clutches for controlling the reversing of the gear box are arranged on the low-speed shaft, and the clutches are large in size, high in cost and not beneficial to increasing the speed ratio. The rotating speed of the propeller of the high-drag trawler needs to be reduced, the speed ratio range of the gear box is required to be 9.5: 1-18: 1, and the requirement of a user cannot be met. In addition, the existing hydraulic system of the large-speed-ratio gearbox often has the phenomenon that lubricating oil does not appear when oil pipes vibrate in a pulse mode, belt rows and low rotating speed, and the use quality of the gearbox is affected.
Disclosure of Invention
An object of the utility model is to overcome the not enough of prior art existence, and provide a small, light in weight, the structural arrangement is compact, and the velocity ratio scope is big, and hydraulic performance index is advanced, and is with low costs, the marine gear box of good reliability. The utility model aims at completing through the following technical scheme, a marine gear box with extra-large speed ratio, which mainly comprises a box body, an input shaft part, a transmission shaft part, a middle shaft part, an output shaft part and an oil distributor part, wherein the front ends of the input shaft part and the transmission shaft part are all provided with a clutch, the rear end of the input shaft is sleeved with an input driving gear in an empty way, the front end of the input shaft is sleeved with an input transmission gear with a clutch shell in a hot way, the input transmission gear is meshed with the transmission gear which is sleeved on the transmission shaft in a hot way and is also provided with the clutch shell in an empty way, and the rear end of the transmission shaft is also sleeved; the outer friction plate of the clutch is connected with the clutch shell, the inner friction plate is connected with the clutch seat, and the clutch seat is respectively connected with the input driving gear and the transmission driving gear; the input driving gear and the transmission driving gear are simultaneously meshed with the intermediate shaft gear to form primary speed reduction transmission; the intermediate shaft gear is sleeved on the intermediate gear shaft in a taper interference manner; the intermediate gear shaft is meshed with the output driven gear to form secondary speed reduction transmission; the output driven gear is sleeved on the output shaft in a thermal mode and is connected with the tail shaft through an output coupling.
Preferably, the method comprises the following steps: the two ends of the input driving gear and the two ends of the transmission driving gear are supported on the box body through two bearings; the input shaft and the transmission shaft are also supported on the box body through two bearings; the intermediate shaft is supported on the box body through two roller bearings and a deep groove ball bearing; the output shaft is supported on the housing by a pair of thrust roller bearings and two roller bearings.
Preferably, the method comprises the following steps: the box body is divided into an upper box body, a middle box body and a lower box body. The input shaft and the output shaft are arranged in a vertical different center, and the transmission shaft and the intermediate shaft are arranged on one side of the input shaft in parallel.
Preferably, the method comprises the following steps: the upper box body and the middle box body are obliquely split along the center lines of the input shaft and the transmission shaft, and the middle box body and the lower box body are horizontally split along the center line of the output shaft. And the intermediate shaft member is disposed in the intermediate case. The gearbox is convenient to disassemble, assemble and maintain, the input shaft and the transmission shaft part can be taken out to maintain by lifting the upper box body, and the output shaft part can be taken out to maintain by lifting the middle box body. The input shaft and the input coupling, and the output shaft and the output coupling adopt a keyless hydraulic sleeving taper interference easily-detachable connection mode, and the shaft system is more convenient to calibrate when the gear box is installed.
Preferably, the method comprises the following steps: the rapid oil drain valve is arranged in the clutch, so that oil return of the clutch is more thorough when the clutch is in drainage, and the drainage phenomenon can be avoided.
Preferably, the method comprises the following steps: the oil distributor component integrates a high-power hydraulic control valve and a lubricating valve into a whole, and a gear oil pump replaces a cycloid oil pump, so that the phenomenon that lubricating oil does not rise during oil pipe pulse vibration, air suction and low rotating speed is fundamentally improved.
The utility model is suitable for both working ships and large-towing-force trawlers, compared with the similar products, the gear box has the advantages of large speed ratio range, advanced index, low cost and the like, thereby having good market prospect; compared with the prior art, the utility model, satisfied the operating mode requirement of general work ship promptly and satisfied the operating mode requirement of special big towing force trawler again, gear box velocity ratio range is big simultaneously, and the index is advanced, and is with low costs, and structural arrangement is compact, and the appearance is pleasing to the eye, characteristics such as good reliability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of fig. 1 taken along direction a.
Fig. 3 is a sectional view of the gear transmission of the present invention.
Detailed Description
The invention will be further described by the following figures: as shown in attached figures 1-3, the utility model mainly comprises a box body, an input shaft component, a transmission shaft component, an intermediate shaft component, an output shaft component and an oil distributor component. Characterized in that the front ends of the input shaft component and the transmission shaft of the transmission shaft component are provided with clutches 7 and 15; the rear end of the input shaft 3 is sleeved with an input driving gear 10 in an empty mode, the front end of the input shaft is sleeved with an input transmission gear 4 with a clutch shell in a hot mode, the input transmission gear 4 is meshed with a transmission gear 18 which is sleeved on a transmission shaft 19 in a hot mode and is also provided with the clutch shell in a hot mode, and the rear end of the transmission shaft 19 is also sleeved with a transmission driving gear 12 in an empty mode; the outer friction plates of the clutches 7 and 15 are connected to the clutch housing, the inner friction plates are connected to the clutch seats 8 and 14, and the clutch seats 8 and 14 are connected to the input drive gear 10 and the transmission drive gear 12, respectively. The input driving gear 10 and the transmission driving gear 12 are meshed with an intermediate shaft gear 21 at the same time, the intermediate shaft gear 21 is sleeved on an intermediate shaft gear 20 in a taper interference mode, the intermediate shaft gear 20 is meshed with an output driven gear 23 to form secondary transmission of the gear box, the output driven gear 23 is sleeved on an output shaft 22 in a hot mode, and the output shaft 22 is connected with a tail shaft through an output coupling 24.
As shown in the attached drawings, two ends of the input driving gear 10 and the transmission driving gear 12 are supported on a box body through two bearings; the input shaft 3 and the transmission shaft 19 are also arranged on the box body through two bearings; the intermediate gear shaft 20 is supported on the box body through two roller bearings and a deep groove ball bearing; the output shaft 22 is supported on the housing by a pair of thrust roller bearings and two roller bearings.
The box is shown in the drawings as being divided into three parts, an upper box 26, a middle box 27 and a lower box 28. The input shaft 3 and the output shaft 22 are arranged vertically and eccentrically.
As shown in the drawing, the upper and middle box bodies 26 and 27 are obliquely split along the central line of the input shaft 3 and the transmission shaft 19, and the middle and lower box bodies 27 and 28 are horizontally split along the central line of the output shaft 22. And the intermediate shaft member is arranged in the middle box 27. The gearbox is convenient to disassemble, assemble and maintain, the input shaft and the transmission shaft part can be taken out simultaneously for maintenance by lifting the upper box body 26, and the output shaft part can be taken out for maintenance by lifting the middle box body 27. The input shaft 3 and the input coupling 2, and the output shaft 22 and the output coupling 24 adopt a keyless hydraulic sleeving taper interference easily-detachable connection mode, so that the shaft system is more convenient to calibrate when the gearbox is installed.
As shown in the drawing, the rapid oil drain valves 5 and 17 are arranged in the clutches 7 and 15, so that the oil return of the clutches 7 and 15 is more thorough during the drainage, and the drainage phenomenon can be avoided.
As shown in the attached drawing, the oil distributor component 25 integrates a high-power hydraulic control valve and a lubricating valve into a whole and a gear oil pump 11 replaces a cycloid oil pump, so that the phenomenon that lubricating oil does not rise when oil pipes vibrate in a pulse mode, suck air and rotate at low speed is fundamentally improved.
Example (b):
as shown in figures 1 and 2, an input shaft 3 is arranged on a box body formed by an upper box body 26, a middle box body 27 and a lower box body 28 through a pair of bearings, the front end of the input shaft 3 is connected with power through an input coupling 2 and a high-elasticity coupling 1, an input driving gear 10 is sleeved at the rear end of the input shaft 3 in an empty mode, two bearings are arranged at two ends of the input driving gear 10 and supported on the upper box body 26 and the middle box body 27, and an input transmission gear 4 with a clutch shell is sleeved at the front end of the input shaft 3 in a hot mode. The input transmission gear 4 is meshed with a transmission gear 18 which is sleeved on a transmission shaft 19 in a hot mode and is also provided with a clutch shell, the transmission shaft 19 is also arranged on an upper box 26 and a middle box 27 through a pair of bearings, the rear end of the transmission shaft 19 is also sleeved with a transmission driving gear 12 in an empty mode, and two bearings are arranged at two ends of the transmission driving gear 12 and supported on the upper box 26 and the middle box 27. The outer friction plates of the clutches 7 and 15 are connected to the clutch housing, the inner friction plates are connected to the clutch seats 8 and 14, and the clutch seats 8 and 14 are connected to the input drive gear 10 and the transmission drive gear 12, respectively. The input driving gear 10 and the transmission driving gear 12 are simultaneously meshed with the intermediate shaft gear 21, and the intermediate shaft gear 21 is sleeved on the intermediate shaft gear 20 through taper interference. The intermediate gear shaft 20 is supported on the upper case 26 and the intermediate case 27 by two roller bearings and a ball bearing. The intermediate gear shaft 20 is in turn engaged with an output driven gear 23, the output driven gear 23 is shrink-fitted on an output shaft 22, the output shaft 22 is supported on a middle case 26 and a lower case 27 by a pair of thrust roller bearings and two roller bearings, and the output shaft 22 is connected with a tail shaft through an output coupling 24. The clutches 7 and 15 are arranged in the input transmission gear 4 and the transmission gear 18, one sides of the clutches 7 and 15 are provided with pistons 6 and 16, and the pistons 6 and 16 are connected with a medium-high power hydraulic control valve through hydraulic oil cavities; when the manual transmission device is used, when the control handle is in a stop position, namely, working oil passages of the clutches 7 and 15 on the input shaft 3 and the transmission shaft 19 are switched to an oil return passage at the same time, the clutch pistons 6 and 16 are quickly separated from inner and outer friction plates under the action of the return springs 9 and 13, the input driving gear 10 and the transmission driving gear 12 are respectively sleeved on the input shaft 3 and the transmission shaft 19 in an empty mode, so that the intermediate shaft gear 21 sleeved on the intermediate shaft gear shaft 20 through taper interference can not be driven to rotate, the intermediate shaft gear shaft 20 is meshed with the output driven gear 23, the output driven gear 23 sleeved on the output shaft 22 in a hot mode can not be driven to rotate, and the propeller stops rotating. At this time, all the oil in the hydraulic system is lubricating oil, and reaches each lubricating point of the gear box through each oil passage. The lubricating oil pressure is regulated by a lubricating valve in an oil distributor component, and the lubricating pressure is stable and completely meets the lubricating requirements under various rotating speeds. When the operating handle is in the 'forward' position, the working oil passage of the clutch 7 of the input shaft 3 is communicated, the piston 6 of the clutch 7 is pushed by working oil pressure to compress the inner friction plate and the outer friction plate, so that the input driving gear 10 and the input shaft 3 synchronously rotate through the clutch seat 8 and drive the intermediate shaft gear 21 sleeved on the intermediate shaft gear 20 through taper interference to reversely rotate, the intermediate shaft gear 20 drives the output driven gear 23 to reversely rotate, the output shaft 22 and the propeller rotate in the same direction, and the ship moves forward at the moment. When the operating handle is in a 'reverse' position, a working oil passage of the clutch 15 of the transmission shaft 19 is communicated, working oil pressure pushes a piston 16 of the clutch 15 to press an inner friction plate and an outer friction plate, so that the transmission driving gear 12 and the transmission shaft 19 synchronously rotate through the clutch seat 14 and drive a middle shaft gear 21 sleeved on a middle shaft gear 20 through taper interference to reversely rotate, the middle shaft gear 20 drives an output driven gear 23 to reversely rotate, an output shaft 22 and a propeller reversely rotate, and the ship moves backwards at the moment.
The utility model discloses the gear box adopts four-axis seven gear second grade speed reduction transmission, and the perpendicular different centers of input shaft and output shaft are arranged, and transmission shaft and countershaft are arranged from top to bottom in input shaft one side. The structure is arranged compactly, and the box body is divided into an upper box body, a middle box body and a lower box body. The input shaft and the transmission shaft are mounted in upper and middle cases, the intermediate shaft is mounted in the middle case, and the output shaft is mounted in the middle and lower cases. The gearbox is convenient to disassemble, assemble and maintain, the input shaft and the transmission shaft part can be taken out to maintain by lifting the upper box body, and the output shaft part can be taken out to maintain by lifting the middle box body.
Claims (6)
1. A kind of extra-large velocity ratio marine gear box, it is mainly made up of housing, input shaft part, drive shaft part, intermediate shaft part, output shaft part and oil distributor part, characterized by that the said input shaft part and front end of the drive shaft part have clutches, the rear end of the said input shaft has input driving gears in the air-tight cover, the front end is hot-fitted with the input drive gear with clutch outer casing, input drive gear and hot-fitted on drive shaft, have drive gear of clutch outer casing engaged with, the rear end of the drive shaft also has drive driving gears in the air-tight cover; the outer friction plate of the clutch is connected with the clutch shell, the inner friction plate is connected with the clutch seat, and the clutch seat is respectively connected with the input driving gear and the transmission driving gear; the input driving gear and the transmission driving gear are simultaneously meshed with the intermediate shaft gear to form primary speed reduction transmission; the intermediate shaft gear is sleeved on the intermediate gear shaft in a taper interference manner; the intermediate gear shaft is meshed with the output driven gear to form secondary speed reduction transmission; the output driven gear is sleeved on the output shaft in a thermal mode and is connected with the tail shaft through an output coupling.
2. The gear box for the ship with the extra large speed ratio according to claim 1, wherein two ends of the input driving gear and the transmission driving gear are supported on the box body through two bearings; the input shaft and the transmission shaft are also supported on the box body through two bearings; the intermediate shaft is supported on the box body through two roller bearings and a deep groove ball bearing; the output shaft is supported on the housing by a pair of thrust roller bearings and two roller bearings.
3. The gear box for the ship with the extra large speed ratio as claimed in claim 1, wherein the box body is divided into an upper box body, a middle box body and a lower box body, the input shaft and the output shaft are vertically arranged in different centers, and the transmission shaft and the middle shaft are arranged on one side of the input shaft in parallel.
4. The gear box with extra large speed ratio for ship as claimed in claim 3, wherein said upper and middle box bodies are obliquely split along the central line of input shaft and transmission shaft, the middle and lower box bodies are horizontally split along the central line of output shaft, and the middle shaft part is arranged in the middle box body, said input shaft and input coupling, output shaft and output coupling are connected by non-key hydraulic engaging taper interference easy to be detached.
5. The gear box for the ship with the extra large speed ratio as claimed in claim 1, wherein a quick oil drain valve is arranged in the clutch.
6. The gear box of claim 1, wherein the oil distributor component integrates a high power hydraulic control valve and a lubrication valve and a gear oil pump replaces a cycloidal oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575966.2U CN211667103U (en) | 2019-09-22 | 2019-09-22 | Marine gearbox with extra-large speed ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921575966.2U CN211667103U (en) | 2019-09-22 | 2019-09-22 | Marine gearbox with extra-large speed ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211667103U true CN211667103U (en) | 2020-10-13 |
Family
ID=72730329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921575966.2U Active CN211667103U (en) | 2019-09-22 | 2019-09-22 | Marine gearbox with extra-large speed ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211667103U (en) |
-
2019
- 2019-09-22 CN CN201921575966.2U patent/CN211667103U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI610832B (en) | Two-speed transmission having two clutches | |
| CN202007867U (en) | Multi-purpose marine gear box | |
| CN101412439B (en) | Gearbox for ship having paralleled twin-engine with PTO and clutch | |
| CN107202139B (en) | Speed-changing moment-reducing transfer case | |
| CN206130053U (en) | Lightweight heavy load marine gearbox | |
| CN211667103U (en) | Marine gearbox with extra-large speed ratio | |
| CN211737961U (en) | Double-input single-output marine gearbox | |
| CN202130568U (en) | High-power decelerating clutch gearbox with PTO and PTI functions | |
| CN202007862U (en) | Gear box for high-power dual-machine combined vehicle ship | |
| CN104948676A (en) | Two-shaft three-gear gearbox | |
| CN112032262A (en) | Tractor power reversing gearbox transmission device | |
| CN111853175A (en) | Gear box with shorter power transmission route | |
| CN105564227B (en) | Sandwich mechanical-hydraulic Composite Transmission case, road-maintaining truck power-control method | |
| CN212959771U (en) | Gear box with multiple sets of main clutches and multiple sets of brakes | |
| CN205239878U (en) | Double speed marine gearbox with dredger matching | |
| CN209892696U (en) | Bevel transmission marine gearbox | |
| CN114183507A (en) | Marine gear box with high-speed gear and low-speed gear output | |
| CN212250994U (en) | Tractor power reversing gearbox transmission device | |
| CN202158158U (en) | Hydraulic clutch gear box | |
| CN206130052U (en) | Transmission shaft part of lightweight heavy load marine gearbox | |
| CN202545701U (en) | Gearbox for vehicles and vessels with power output/power input (PTO/PTI) | |
| CN112303205A (en) | Dry-type dual-clutch transmission of pure electric vehicle | |
| CN206545675U (en) | A kind of inclination angle type ship powerplant module marine gearbox | |
| CN101761610B (en) | Intermediate transmission case for high-power tractor | |
| CN109505929A (en) | A kind of oblique angle transmission marine gearbox |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |