CN109667888B - Single-bevel gear pair transmission structure with thrust cone - Google Patents
Single-bevel gear pair transmission structure with thrust cone Download PDFInfo
- Publication number
- CN109667888B CN109667888B CN201910062929.XA CN201910062929A CN109667888B CN 109667888 B CN109667888 B CN 109667888B CN 201910062929 A CN201910062929 A CN 201910062929A CN 109667888 B CN109667888 B CN 109667888B
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- Prior art keywords
- gear
- cylindrical roller
- monoclinic
- small
- thrust cone
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 244000309464 bull Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
- F16H1/08—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes the members having helical, herringbone, or like teeth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0427—Guidance of lubricant on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
The invention belongs to the technical field of mechanical transmission equipment, and particularly relates to a single-bevel gear pair transmission structure with a thrust cone, which comprises a small single-bevel gear, a large single-bevel gear, a baffle plate and the thrust cone; the two ends of the shaft of the small monoclinic gear are provided with cylindrical roller bearings, the outer side of one end of the cylindrical roller bearing is provided with a positioning sleeve, a four-point contact bearing and a small round nut stop washer assembly in sequence, and the outer side of the other end of the cylindrical roller bearing is provided with a small round nut stop washer assembly; the baffle plate used for fixing the assembled gear and the thrust cone used for bearing the meshing axial force of the single-bevel gear are respectively arranged on shafts on two sides of the gear tooth part of the small single-bevel gear; cylindrical roller bearings are arranged at the two ends of the shaft of the large monoclinic gear, and large round nut stop washer assemblies are arranged on the outer sides of the cylindrical roller bearings. The structure reduces the requirement of the bearing on the axial bearing capacity, and the processing and assembling processes of the gear are simple, so that the aim of reducing the design rate can be achieved.
Description
Technical field:
the invention belongs to the technical field of mechanical transmission equipment, and particularly relates to a single bevel gear pair transmission structure with a thrust cone.
The background technology is as follows:
currently in the field of ships, a gear transmission is indispensable as a connection part between a main power device and a propeller shaft, and has functions of transmitting power, reducing rotation speed, turning a rotation direction, and the like. The gear can be divided into a straight tooth gear pair, a single bevel tooth gear pair and a herringbone tooth gear pair according to the basic form of the gear, and suitable structural forms can be adopted according to different actual requirements, wherein the transmission forms of the single bevel tooth and the herringbone tooth have the characteristics of large bearing capacity, small radial space and the like, and are the structural forms which are commonly used in high-power transmission devices at present. The single helical tooth has characteristics such as saving axial space, meshing steadily and processing simply for the herringbone tooth structure, but when adopting single helical tooth transmission form, need to consider the bearing of axial force with emphasis, because can produce great axial force in the high-power transmission, will lead to the fact the difficulty to the bearing type selection, can meet the condition that bearing rotational speed satisfies the requirement often, and the bearing capacity does not satisfy the requirement. In order to solve the above problems, a solution of customizing the bearing can be adopted, but higher design cost is generated, so that the axial force bearing problem of the single helical gear pair is solved, and the optimization of the structure of the transmission device and the reduction of design rate are necessary.
The invention comprises the following steps:
the invention aims to provide a single-bevel gear transmission structure suitable for a high-power and high-rotation-speed transmission device of a ship, which reduces the requirement on the axial bearing capacity of a bearing, has simple processing and assembling processes of gears and can achieve the aim of reducing design rate.
The invention adopts the technical scheme that: the single-bevel gear pair transmission structure with the thrust cone comprises a small single-bevel gear, a large single-bevel gear, a baffle plate and the thrust cone; the two ends of the shaft of the small single-bevel gear are provided with a first cylindrical roller bearing and a second cylindrical roller bearing, the outer side of the second cylindrical roller bearing is provided with a positioning sleeve, a four-point contact bearing and a small round nut stop gasket assembly in sequence, and the outer side of the first cylindrical roller bearing is provided with a small round nut stop gasket assembly; the small monoclinic gear is meshed with the large monoclinic gear, and a baffle plate used for fixing after gear assembly and a thrust cone used for bearing the axial force of monoclinic gear meshing are respectively arranged on shafts on two sides of the gear tooth part of the small monoclinic gear; and a third cylindrical roller bearing and a fourth cylindrical roller bearing are arranged at two ends of the shaft of the large monoclinic gear, and large round nut stop washer assemblies are arranged outside the third cylindrical roller bearing and the fourth cylindrical roller bearing.
Further, the thrust cone is arranged on one side of the large monoclinic gear subjected to axial force and is arranged on the small monoclinic gear through an inclined pin; an axial gap is reserved between the large monoclinic gear and the thrust cone, an oil groove is formed in the end face of the thrust cone, which is close to one side of the gear, and the stressed end face of the thrust cone is a conical surface.
Further, the oil groove is located on the gear engagement flank.
Further, the radial clearance between the four-point contact bearing and the positioning sleeve is 1-2mm.
Further, the baffle is mounted on the small monoclinic gear through bolts.
The invention has the beneficial effects that: the thrust cone bears axial force generated by engagement of the single bevel gear, bearings bearing large axial force are not required to be placed at two ends of the shafting, and positioning bearings are placed at one side only. The bearing type selection difficulty problem of the transmission device under the working condition of high speed and heavy load is solved, the design rate, the processing and assembly difficulty are reduced, the single-bevel-gear transmission mode with a simple structure is achieved, the requirements of power transmission, rotation speed change and the like are met, the design is reasonable, the economy and the applicability are realized, and the large-scale popularization and use are easy.
Description of the drawings:
FIG. 1 is a schematic structural view of a first embodiment;
FIG. 2 is an enlarged partial schematic view of II in FIG. 1;
FIG. 3 is an enlarged partial schematic view of a thrust cone in accordance with an embodiment I;
fig. 4 is an enlarged partial schematic view of i in fig. 1.
The specific embodiment is as follows:
example 1
Referring to the figures, a single-bevel gear pair transmission structure with a thrust cone comprises a small single-bevel gear 3, a large single-bevel gear 12, a baffle plate 2 and the thrust cone 4; a first cylindrical roller bearing 1 and a second cylindrical roller bearing 5 are arranged at two ends of a shaft of the small monoclinic gear 3, a positioning sleeve 6, a four-point contact bearing 7 and a small round nut stop gasket assembly 8 are sequentially arranged at the outer side of the second cylindrical roller bearing 5, and the small round nut stop gasket assembly 8 is arranged at the outer side of the first cylindrical roller bearing 5; the small monoclinic gear 3 is meshed with the large monoclinic gear 12, and the baffle plate 2 used for fixing after gear assembly and the thrust cone 4 used for bearing the axial force of monoclinic gear meshing are respectively arranged on shafts on two sides of the tooth part of the small monoclinic gear 3; the two ends of the shaft of the large monoclinic gear 12 are provided with a third cylindrical roller bearing 14 and a fourth cylindrical roller bearing 10, and the outsides of the third cylindrical roller bearing 14 and the fourth cylindrical roller bearing 10 are provided with a large round nut stop gasket assembly 9; the thrust cone 4 is arranged on one side of the large monoclinic gear 12 subjected to axial force and is arranged on the small monoclinic gear 3 through an inclined pin 11; an axial gap 15 is reserved between the large monoclinic gear 12 and the thrust cone 4, an oil groove 16 is formed in the end face of the thrust cone 4 close to one side of the gear, and the stressed end face of the thrust cone 4 is a conical surface 17; the oil groove 16 is located on the gear engagement flank; the radial clearance between the four-point contact bearing 7 and the positioning sleeve 6 is 1-2mm; the baffle plate 2 is mounted on the small monoclinic gear 3 through bolts 13.
The two ends of the pinion shaft of the structure are radially supported by cylindrical roller bearings, the shaft ends are axially positioned by four-point contact ball bearings, a gap of 1.5mm is radially ensured between the four-point contact ball bearings and a positioning sleeve, and the two ends of the cylindrical roller bearings are locked by small round nuts and stop gaskets. The pinion shaft is connected with the thrust cone through a pin, the pin hole and the end face have a certain angle alpha, the thrust cone is arranged on one side of the axial force borne by the large gear, and an axial gap is reserved between the large gear and the thrust cone; the stress end surface of the thrust cone is a conical surface. The pinion is fixed by a baffle after being assembled with the bull gear, the baffle is connected with the pinion by bolts, the two ends of the bull gear are radially supported by cylindrical roller bearings, and the two ends of the bearings are locked by large round nuts and stop gaskets. The axial force generated by the gear engagement is borne by the thrust cone, bearings for bearing the axial force do not need to be arranged at the two ends of the pinion shaft or the two ends of the large gear, and four-point contact ball bearings are arranged beside the radial bearings to ensure axial positioning. The pinion is provided with a thrust cone, the thrust cone is connected with the pinion by a pin, and the pin hole and the contact end face have a certain angle. The thrust cone bearing surface has a certain taper, the end surface is provided with an oil groove, and after the big gear and the small gear are assembled, a gap is reserved between the big gear and the thrust cone so as to form an oil film to ensure bearing capacity
The thrust cone bears axial force generated by engagement of the single bevel gear, bearings bearing large axial force are not required to be installed at two ends of the shafting, and only positioning bearings are placed. The problem of difficult bearing type selection under the high-speed heavy-duty working condition of the transmission device is avoided, the design rate is reduced, and the requirements of power transmission, speed change and the like are met by adopting a single-bevel-gear transmission form with a simple structure.
Claims (3)
1. A single bevel gear pair transmission structure with a thrust cone is characterized in that: the transmission structure comprises a small single-bevel gear (3), a large single-bevel gear (12), a baffle plate (2) and a thrust cone (4); a first cylindrical roller bearing (1) and a second cylindrical roller bearing (5) are arranged at two ends of a shaft of the small monoclinic gear (3), a positioning sleeve (6), a four-point contact bearing (7) and a small round nut stop gasket assembly (8) are sequentially arranged at the outer side of the second cylindrical roller bearing (5), and the small round nut stop gasket assembly (8) is arranged at the outer side of the first cylindrical roller bearing (5); the small monoclinic gear (3) is meshed with the large monoclinic gear (12), and a baffle (2) for fixing after gear assembly and a thrust cone (4) for bearing the axial force of monoclinic gear meshing are respectively arranged on shafts on two sides of the tooth part of the small monoclinic gear (3); a third cylindrical roller bearing (14) and a fourth cylindrical roller bearing (10) are arranged at the two ends of the shaft of the large monoclinic gear (12), and a large round nut stop gasket assembly (9) is arranged outside the third cylindrical roller bearing (14) and the fourth cylindrical roller bearing (10);
the thrust cone (4) is arranged on one side of the large monoclinic gear (12) subjected to axial force and is arranged on the small monoclinic gear (3) through an inclined pin (11); an axial gap (15) is reserved between the large monoclinic gear (12) and the thrust cone (4), an oil groove (16) is formed in the end face of the thrust cone (4) close to one side of the gear, and the stressed end face of the thrust cone (4) is a conical surface (17);
the baffle (2) is arranged on the small single-bevel gear (3) through a bolt (13).
2. The single bevel gear pair transmission structure with a thrust cone of claim 1, wherein: the oil groove (16) is located on the gear engagement flank.
3. The single bevel gear pair transmission structure with a thrust cone of claim 1, wherein: the radial clearance between the four-point contact bearing (7) and the positioning sleeve (6) is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062929.XA CN109667888B (en) | 2019-01-23 | 2019-01-23 | Single-bevel gear pair transmission structure with thrust cone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910062929.XA CN109667888B (en) | 2019-01-23 | 2019-01-23 | Single-bevel gear pair transmission structure with thrust cone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109667888A CN109667888A (en) | 2019-04-23 |
| CN109667888B true CN109667888B (en) | 2023-12-22 |
Family
ID=66151077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910062929.XA Active CN109667888B (en) | 2019-01-23 | 2019-01-23 | Single-bevel gear pair transmission structure with thrust cone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109667888B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566655A (en) * | 2019-10-10 | 2019-12-13 | 河南柴油机重工有限责任公司 | Connecting structure of intermediate duplicate gear of engine |
| CN112728011A (en) * | 2020-12-25 | 2021-04-30 | 中国船舶重工集团公司第七0三研究所 | Gear transmission structure for testing transmission performance of alignment bevel gear |
| CN112728041A (en) * | 2020-12-25 | 2021-04-30 | 中国船舶重工集团公司第七0三研究所 | Thrust structure capable of being used for balancing axial force of high-speed alignment helical gear |
| CN113074242A (en) * | 2021-03-25 | 2021-07-06 | 西安法士特汽车传动有限公司 | Gear transmission vibration and noise reduction mechanism |
| CN113187877A (en) * | 2021-05-11 | 2021-07-30 | 中国船舶重工集团公司第七0三研究所 | Axial force conical surface thrust structure for high-speed heavy-load helical gear transmission system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3047334A1 (en) * | 1980-12-16 | 1982-07-08 | Zahnräderfabrik Renk AG, 8900 Augsburg | PRESSURE COMB GEARBOX |
| WO2005005866A1 (en) * | 2003-07-02 | 2005-01-20 | The Timken Company | Transmission containing helical gearing and bearing arrangement therefor |
| CN1776259A (en) * | 2005-12-02 | 2006-05-24 | 天水星火机床有限责任公司 | High-ridigitypreloading system |
| JP2006170403A (en) * | 2004-12-20 | 2006-06-29 | Seisa Gear Ltd | Thrust collar back-up ring |
| CN101813159A (en) * | 2010-03-31 | 2010-08-25 | 百事德机械（江苏）有限公司 | Gear case matched with middle/high speed centrifugal fan |
| DE102011085204A1 (en) * | 2011-10-26 | 2013-05-02 | Aktiebolaget Skf | Combined radial-axial bearing for drive shaft of spur gear, has roller bearing which is in contact with four-point contact bearing whose contact angle is set to specific value |
| CN205479139U (en) * | 2016-01-28 | 2016-08-17 | 中原特种车辆有限公司 | Plunger pump joins externally gear box |
| CN209539923U (en) * | 2019-01-23 | 2019-10-25 | 中国船舶重工集团公司第七0三研究所 | A kind of monocline gear auxiliary driving structure with thrust cone |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK2275705T3 (en) * | 2008-03-13 | 2012-07-02 | Mitsubishi Heavy Ind Ltd | Gear unit and wind turbine generator |
-
2019
- 2019-01-23 CN CN201910062929.XA patent/CN109667888B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3047334A1 (en) * | 1980-12-16 | 1982-07-08 | Zahnräderfabrik Renk AG, 8900 Augsburg | PRESSURE COMB GEARBOX |
| WO2005005866A1 (en) * | 2003-07-02 | 2005-01-20 | The Timken Company | Transmission containing helical gearing and bearing arrangement therefor |
| JP2006170403A (en) * | 2004-12-20 | 2006-06-29 | Seisa Gear Ltd | Thrust collar back-up ring |
| CN1776259A (en) * | 2005-12-02 | 2006-05-24 | 天水星火机床有限责任公司 | High-ridigitypreloading system |
| CN101813159A (en) * | 2010-03-31 | 2010-08-25 | 百事德机械（江苏）有限公司 | Gear case matched with middle/high speed centrifugal fan |
| DE102011085204A1 (en) * | 2011-10-26 | 2013-05-02 | Aktiebolaget Skf | Combined radial-axial bearing for drive shaft of spur gear, has roller bearing which is in contact with four-point contact bearing whose contact angle is set to specific value |
| CN205479139U (en) * | 2016-01-28 | 2016-08-17 | 中原特种车辆有限公司 | Plunger pump joins externally gear box |
| CN209539923U (en) * | 2019-01-23 | 2019-10-25 | 中国船舶重工集团公司第七0三研究所 | A kind of monocline gear auxiliary driving structure with thrust cone |
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| Publication number | Publication date |
|---|---|
| CN109667888A (en) | 2019-04-23 |
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