CN117267271A - Power transmission shaft of propulsion system - Google Patents
Power transmission shaft of propulsion system Download PDFInfo
- Publication number
- CN117267271A CN117267271A CN202311207244.2A CN202311207244A CN117267271A CN 117267271 A CN117267271 A CN 117267271A CN 202311207244 A CN202311207244 A CN 202311207244A CN 117267271 A CN117267271 A CN 117267271A
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- hole
- shaft
- propulsion system
- power transmission
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 64
- 238000009826 distribution Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/033—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
Abstract
The utility model provides a propulsion system power transmission shaft, includes basic axle, work piece, fixing bolt, and basic axle utilizes fixing bolt to connect fixedly with a plurality of work pieces, and basic axle input flange is equipped with the mounting hole, and the mounting hole includes load area and fixed zone, the fixed zone is equipped with spacing hole for fixing bolt is fixed. The working piece is boss-shaped and comprises a bearing section and a fixed wing, wherein the bearing section is provided with a hinging hole, and the fixed wing is provided with a step hole and a top thread hole for supporting installation and dismantling. In the situation that some transmission shafts need to be reused, the transmission shafts cannot be assembled for the second time after being reamed, and new transmission shafts need to be customized again to meet the reaming requirement. The working piece and the basic shaft are combined to form the transmission shaft, when the reaming is carried out, only the reaming of the working piece is needed, when the working piece is needed to be reused, the transmission shaft can be reamed again by replacing the working piece, and compared with the transmission shaft body, the working piece has the advantages of low cost, short manufacturing time, simple replacement and good economic benefit.
Description
Technical Field
The invention relates to the technical field of transmission shafts, in particular to a power transmission shaft of a propulsion system.
Background
The propulsion system mainly comprises a host, transmission equipment, a shafting and a propeller, and the propulsion system is used for transmitting power to the propeller through the transmission equipment and a transmission shaft so as to complete the work of propelling the ship. Wherein, transmission shaft connects transmission equipment and propeller, plays crucial effect. The diameter of the transmission shaft is also increased continuously due to the improvement of the power of the propulsion system, and the transmission shaft is often manufactured into blanks by adopting forgings and then subjected to finish machining. In the actual installation process, after the shaft system is centered, in order to transmit torque to the bolts at the flange connection part, the connecting bolts are damaged in order to avoid larger relative displacement of the connecting flanges in the torque transmission process. Therefore, the bolt holes on the flange surface of the driving shaft are required to be reamed, and then the reamed bolts are arranged according to the sizes of the reamed holes.
Because the reaming process is to continuously enlarge the aperture of the working hole, the reaming of the transmission shaft is often irreversible, and the reaming of the working hole needs to be completed once. The reamed drive shaft is often only usable to meet the current working bore size. When the transmission equipment connecting flange is changed due to design or a plurality of transmission equipment needs to be matched, the initial size of a working hole of the transmission shaft is too large, the connection function of the second transmission equipment cannot be met, a new transmission shaft needs to be forged and processed again, and the transmission shaft has long size, heavy weight, long manufacturing time and high manufacturing cost, reduces economic benefit and brings about waste of resources.
Disclosure of Invention
The applicant provides a propulsion system power transmission shaft which aims at the defects in the prior art, so that the problem of repeatability of the transmission shaft is effectively solved, and the cost is greatly reduced.
The technical scheme adopted by the invention is as follows:
the power transmission shaft of the propulsion system comprises a foundation shaft, working pieces, a fixing bolt and an output power shaft, wherein the end face of the foundation shaft is provided with a plurality of working pieces through the fixing bolt, each working piece is provided with a reaming hole, the working pieces are simultaneously connected with the output power shaft, and the output power shaft is connected with the reaming holes through the reaming bolt and a nut; the structure of the basic shaft is as follows: including the linkage segment, the one end of linkage segment is provided with output flange, and the other end of linkage segment is provided with input flange, it has a plurality of mounting holes that match with the work piece to open on the input flange, the mounting hole includes bearing area and fixed zone, fixed zone department is equipped with spacing hole, spacing hole department installation fixing bolt.
The further technical scheme is as follows:
the work piece is of an integrated structure.
The working piece is in a boss shape and comprises a bearing section and a fixed wing, a hinging hole is formed in the bearing section, a step hole and a jackscrew hole are formed in the fixed wing, and fixing bolts are arranged in the step hole and the jackscrew hole; the bearing section is installed in the bearing area, and the fixing wing is installed in the fixing area.
The bearing area and the bearing section are both waist-shaped.
And the bearing section and the bearing area are in clearance fit.
The fixed wings are in clearance fit with the fixed areas.
The number of the mounting holes is 4-12, and the mounting holes are uniformly distributed along the radial direction of the input flange.
The diameter and distribution position of the reaming holes are determined according to the position and diameter of the holes of the output power shaft.
The input flange diameter D is 2 to 2.5 times the connecting section diameter D.
The height of the workpiece is consistent with the thickness of the input flange.
The beneficial effects of the invention are as follows:
the invention has compact and reasonable structure and convenient operation, the working piece and the basic shaft are matched, installed and combined to form the transmission shaft, only the working hole on the working piece is hinged during actual reaming, the basic shaft is unchanged, when the transmission shaft needs to be reused, the working piece is customized again according to the requirement, and the working piece has small volume, simple processing, low cost and short production period, solves the difficult problem of unrepeatability of the transmission shaft, and saves time and manufacturing cost.
The invention effectively solves the problems that the transmission shaft in the prior art does not have repeatability, when the transmission shaft needs to be used on a second output device or the diameter of the distribution pitch circle of the hinging holes of the output device on the output flange is changed, the original transmission shaft cannot be used again and needs to be purchased again, so that the economic benefit is reduced, the resource waste is caused, and meanwhile, the transmission shaft has long manufacturing time and high manufacturing cost.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of the present invention.
FIG. 3 is a schematic structural view of a basic shaft of the present invention.
Fig. 4 is a view in the direction a of fig. 3.
Fig. 5 is a full sectional view taken along section B-B in fig. 4.
FIG. 6 is a top view of a work-piece of the present invention.
FIG. 7 is a schematic view of a work-piece according to the present invention.
Wherein: 1. a base shaft;
101. an output flange; 102. a connection section; 103. an input flange; 104. a mounting hole; 105. a limiting hole; 106. a force bearing area; 107. a fixed zone;
2. a work piece;
201. a step hole; 202. a top thread hole; 203. reaming a hole; 204. a force bearing section; 205. a fixed wing;
3. a fixing bolt;
4. hinging a bolt;
5. an output power shaft;
6. and (3) a nut.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 7, the propulsion system power transmission shaft of the present embodiment includes a base shaft 1, work pieces 2, a fixing bolt 3 and an output power shaft 5, wherein a plurality of work pieces 2 are mounted on the end surface of the base shaft 1 through the fixing bolt 3, a hinging hole 203 is provided on each work piece 2, the plurality of work pieces 2 are simultaneously connected with the output power shaft 5, and the output power shaft 5 is connected with the hinging hole 203 through the hinging bolt 4 and a nut 6; the basic shaft 1 has the structure that: including linkage segment 102, the one end of linkage segment 102 is provided with output flange 101, and the other end of linkage segment 102 is provided with input flange 103, opens on the input flange 103 has a plurality of mounting holes 104 that match with work piece 2, and mounting hole 104 includes bearing area 106 and fixed area 107, and fixed area 107 department is equipped with spacing hole 105, and spacing hole 105 department installs fixing bolt 3.
The work piece 2 is of unitary construction.
The working piece 2 is in a boss shape, the working piece 2 comprises a bearing section 204 and a fixed wing 205, a hinging hole 203 is formed in the bearing section 204, a step hole 201 and a jackscrew hole 202 are formed in the fixed wing 205, and a fixed bolt 3 is installed in each of the step hole 201 and the jackscrew hole 202; the load carrying section 204 is installed in the load carrying area 106 and the fixing wing 205 is installed in the fixing area 107.
The shape of the load bearing region 106 and the load bearing section 204 are both waist-shaped.
A clearance fit is used between the load carrying section 204 and the load carrying region 106.
A clearance fit is used between the securing wings 205 and the securing region 107.
The number of the mounting holes 104 is 4-12, and the mounting holes 104 are uniformly distributed along the radial direction of the input flange 103.
The diameter and distribution of the reamed holes 203 are determined according to the position and diameter of the holes of the output shaft 5.
The diameter D of the input flange 103 is 2 to 2.5 times the diameter D of the connecting section 102.
The height of the workpiece 2 corresponds to the thickness of the input flange 103.
The thread of the limit hole 105 is the same as the thread of the jackscrew hole 202 on the workpiece 2.
The length direction of the mounting hole 104 is consistent with the radial direction of the input flange 103.
The load bearing region 106 of the mounting hole 104 and the load bearing section 204 of the work piece 2 are cylindrical in shape.
The specific structure and functions of the power transmission shaft of the propulsion system are as follows:
as shown in fig. 1, the power transmission shaft of the propulsion system of the present embodiment is used for connecting the transmission device with the propeller or the power cancellation device to perform power transmission. Fig. 1 mainly shows the final form of the shaft-to-output shaft 5 connection in the embodiment using this structure.
Fig. 2 shows the basic shaft 1, the work piece 2, the fixing bolt 3, the output shaft 5, the hinging bolt 4 and the nut 6 in a matched mode. The base shaft 1 is connected with the workpiece 2 by four fixing bolts 3, and the workpiece 2 is provided with a reaming hole 203.
Fig. 3, 4 and 5 show the construction of a basic shaft 1, the basic shaft 1 being composed of an output flange 101, a connecting section 102 and an input flange 103, the input flange 103 being provided with a number of female holes for mounting the work piece 2, the number of holes being determined by the cooperating transmission connection flange. The diameter D of the input flange 103 is 2 to 2.5 times the diameter D of the connecting section 102, and an adjustment allowance is left, and the adjustment allowance cannot be excessively large, otherwise, stress concentration is generated on the transmission shaft in the torque transmission process, and the transmission shaft is damaged. The bearing area 106 is a waist-shaped hole, and the length direction of the waist-shaped hole is distributed along the radial direction of the input flange 103. The waist-shaped hole length L is 0.8-1.2 times of the waist-shaped hole circular radius R.
The bearing zone 106 and the fixing zone 107 of the mounting hole 104 cooperate with the bearing section 204 and the fixing wing 205 of the work piece 2, respectively. The force bearing section 204 is provided with the reaming holes 203, and the distribution positions of the reaming holes 203 on the workpiece 2 and the radius r2 of the reaming holes 203 are changed to be matched with the connecting holes on the power output shaft flange. The workpiece 2 is provided with a fixing wing 205, and the fixing wing 205 is provided with a step hole 201 for installing the fixing bolt 3. The thickness of the fixing wing 205 is 1.4 to 1.6 times the thickness of the bolt head of the fixing bolt 3. The height of the workpiece 2 is consistent with the thickness of the input flange 103 of the base shaft 1. The fixed wing 205 is also provided with a top thread hole 202, the thread of the top thread hole 202 is consistent with the thread specification of the fixed bolt 3, when the transmission shaft is replaced, the fixed bolt 3 is screwed into the top thread hole 202 after the fixed bolt 3 is loosened, the workpiece 2 can be removed, a new workpiece 2 is replaced, and the replacement is convenient. The radius r2 of the reaming 203 is no more than 0.8 times the radius r1 of the top end of the work piece.
In other embodiments of the drive shaft, the shape of the fixed region 107 of the base shaft 1 and the load carrying section 204 of the work piece 2 may take other shapes, such as circular.
In the power transmission shaft of the propulsion system, a basic shaft 1 is a main body part of the transmission shaft and is used as a mounting base of a workpiece 2. In some cases where the transmission shaft needs to be reused, the transmission shaft cannot be assembled for the second time after reaming, and a new transmission shaft needs to be customized again to meet the reaming requirement. In the invention, the work piece 2 and the base shaft 1 are combined to form the transmission shaft, and when the reaming is carried out, only the reaming hole 203 of the work piece 2 is required to be reamed, and when the work piece 2 is required to be reused, the use condition can be met after the transmission shaft is reamed again. Compared with the transmission shaft body, the working piece 2 has low cost, short manufacturing time, simple replacement and good economic benefit.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.
Claims (10)
1. A propulsion system power transmission shaft, characterized by: the device comprises a foundation shaft (1), work pieces (2), fixing bolts (3) and an output power shaft (5), wherein a plurality of work pieces (2) are arranged on the end face of the foundation shaft (1) through the fixing bolts (3), a hinging hole (203) is formed in each work piece (2), the plurality of work pieces (2) are simultaneously connected with the output power shaft (5), and the output power shaft (5) is connected with the hinging hole (203) through the hinging bolts (4) and nuts (6); the basic shaft (1) has the structure that: including linkage segment (102), the one end of linkage segment (102) is provided with output flange (101), and the other end of linkage segment (102) is provided with input flange (103), open on input flange (103) have a plurality of mounting holes (104) that match with work piece (2), mounting hole (104) are including bearing area (106) and fixed zone (107), fixed zone (107) department is equipped with spacing hole (105), and fixed bolt (3) are installed to spacing hole (105) department.
2. A propulsion system power transmission shaft as in claim 1 wherein: the working piece (2) is of an integrated structure.
3. A propulsion system power transmission shaft as in claim 1 wherein: the working piece (2) is in a boss shape, the working piece (2) comprises a bearing section (204) and a fixed wing (205), a hinging hole (203) is formed in the bearing section (204), a step hole (201) and a jackscrew hole (202) are formed in the fixed wing (205), and fixing bolts (3) are installed in the step hole (201) and the jackscrew hole (202); the bearing section (204) is installed at the bearing area (106), and the fixing wing (205) is installed at the fixing area (107).
4. A propulsion system power transmission shaft as in claim 3 wherein: the bearing area (106) and the bearing section (204) are both waist-shaped.
5. A propulsion system power transmission shaft as in claim 3 wherein: and the bearing section (204) and the bearing area (106) are in clearance fit.
6. A propulsion system power transmission shaft as in claim 3 wherein: a clearance fit is adopted between the fixed wing (205) and the fixed region (107).
7. A propulsion system power transmission shaft as in claim 1 wherein: the number of the mounting holes (104) is 4-12, and the mounting holes (104) are uniformly distributed along the radial direction of the input flange (103).
8. A propulsion system power transmission shaft as in claim 1 wherein: the diameter and distribution position of the reaming holes (203) are determined according to the position and diameter of the holes of the output shaft (5).
9. A propulsion system power transmission shaft as in claim 1 wherein: the diameter D of the input flange (103) is 2 to 2.5 times the diameter D of the connecting section (102).
10. A propulsion system power transmission shaft as in claim 1 wherein: the height of the working piece (2) is consistent with the thickness of the input flange (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311207244.2A CN117267271A (en) | 2023-09-19 | 2023-09-19 | Power transmission shaft of propulsion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311207244.2A CN117267271A (en) | 2023-09-19 | 2023-09-19 | Power transmission shaft of propulsion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117267271A true CN117267271A (en) | 2023-12-22 |
Family
ID=89217120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311207244.2A Pending CN117267271A (en) | 2023-09-19 | 2023-09-19 | Power transmission shaft of propulsion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117267271A (en) |
-
2023
- 2023-09-19 CN CN202311207244.2A patent/CN117267271A/en active Pending
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