CN117108640A - Mechanical coupling - Google Patents
Mechanical coupling Download PDFInfo
- Publication number
- CN117108640A CN117108640A CN202311056854.7A CN202311056854A CN117108640A CN 117108640 A CN117108640 A CN 117108640A CN 202311056854 A CN202311056854 A CN 202311056854A CN 117108640 A CN117108640 A CN 117108640A
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- CN
- China
- Prior art keywords
- spline
- shaft
- machine
- coupling
- hole
- 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
- 230000008878 coupling Effects 0.000 title claims abstract description 69
- 238000010168 coupling process Methods 0.000 title claims abstract description 69
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000009347 mechanical transmission 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
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
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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
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
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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
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/12—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted for accumulation of energy to absorb shocks or vibration
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The application provides a mechanical coupling comprising: the left shaft is provided with a left spline hole at the end part; the right shaft is provided with a right spline hole at the end part; the left end of the spline shaft is arranged in the left spline hole, and the right end of the spline shaft is arranged in the right spline hole; a first gap exists between the end face of the left end of the spline shaft and the bottom of the left spline hole, and a second gap exists between the end face of the right end of the spline shaft and the bottom of the right spline hole; the spline shaft can axially float in the rotating process; the floating spline coupler provided by the application is suitable for connecting machines with high power and high rotating speed which continuously run for a long time, and has good use effect.
Description
Technical Field
The application belongs to the technical field of mechanical transmission, and particularly relates to a floating spline mechanical coupler suitable for high rotation speed.
Background
The coupling is widely applied to machine transmission in various fields. The coupling is a mechanical part for coupling the driving shaft and the driven shaft to rotate together to transmit torque. The general coupling consists of two halves, which are respectively connected with a driving shaft and a driven shaft.
The coupling can be divided into a rigid coupling and a flexible coupling. The rigid coupling is a torsional rigid coupling, has no turning clearance when bearing load, and is not suitable for the connection of high-speed rotating machines. Flexible couplings allow torque to be transferred with axial, radial, or angular misalignment. Flexible couplings are classified into inelastic couplings and elastic couplings.
Common inelastic couplings include flange couplings, oldham coupling, universal couplings, tooth couplings, and the like. Common elastic couplings include roller chain couplings, elastic sleeve pin couplings, elastic pin couplings, star-shaped elastic couplings, quincuncial elastic couplings, and the like.
A large number of engineering experiments show that the existing coupler is not suitable for machine coupling with high power and high rotating speed for long-term continuous operation.
Disclosure of Invention
In view of the above technical problems, the present application provides a mechanical coupling, including:
the left shaft is provided with a left spline hole at the end part;
the right shaft is provided with a right spline hole at the end part;
the left end of the spline shaft is arranged in the left spline hole, and the right end of the spline shaft is arranged in the right spline hole;
a first gap exists between the end face of the left end of the spline shaft and the bottom of the left spline hole, and a second gap exists between the end face of the right end of the spline shaft and the bottom of the right spline hole; the spline shaft is axially floatable during rotation.
Preferably, a left internal spline is arranged in the left spline hole; a right internal spline is arranged in the right spline hole;
one end of the spline shaft is provided with a left external spline, and the other end of the spline shaft is provided with a right external spline;
wherein the left external spline is matched with the left internal spline, and the right external spline is matched with the right internal spline; and a third gap is formed between the left external spline and the left internal spline, a fourth gap is formed between the right external spline and the right internal spline, and the spline shaft can float radially in the rotating process.
Preferably, the spline shaft comprises an elastic shaft.
Preferably, the mechanical coupling further comprises:
and a coupling sleeve disposed between the left shaft and the right shaft, the spline shaft being accommodated in the coupling sleeve.
Preferably, a left inner spigot is arranged at one end of the coupling sleeve, a right inner spigot is arranged at the other end of the coupling sleeve, and the left inner spigot and the right inner spigot have coaxiality and perpendicularity.
Preferably, the left inner spigot mates with a first outer spigot provided on a first machine and the right inner spigot mates with a second outer spigot provided on a second machine.
Preferably, the first machine includes the left axle and the second machine includes the right axle.
Preferably, the third gap and the fourth gap are the same, and the first gap or the second gap is 2 mm.
The application has the following beneficial effects:
the floating spline coupler is used for connecting two machines rotating at a high speed, and the spline shaft can axially float or radially float in the running process. The floating spline coupler only transmits torque and does not transmit axial force, and the spline shaft has certain elasticity and can effectively reduce mechanical vibration.
Drawings
FIG. 1 is an exploded view of a floating spline coupling provided by an embodiment of the present application;
FIG. 2 is an assembly view of a floating spline coupler provided by an embodiment of the present application;
FIG. 3 is a process diagram of an embodiment of a floating spline coupler provided by an embodiment of the present application;
fig. 4 is an enlarged partial view of a floating spline coupling and an internally assembled floating spline coupling according to an embodiment of the present application.
Detailed Description
The application aims to construct a floating spline mechanical coupler suitable for high rotation speed. The floating spline coupler allows torque transmission in the presence of axial deviation, radial deviation or angular deviation, and is suitable for connecting two machines which continuously operate for a long time and have high power and high rotating speed.
In the embodiment of the application, the high-speed mechanical coupler consists of a left shaft 1, a spline shaft 5, a right shaft 7 and a coupler sleeve 10. The joint of the left shaft 1 and the spline shaft 5 is provided with a left spline hole 2 and a left internal spline 3 which are matched. The joint of the right shaft 7 and the spline shaft 5 is provided with a right spline hole 8 and a right internal spline 9 which are matched. The left end of the spline shaft 5 is provided with a left external spline 4 matched with the left spline hole 2 and the left internal spline 3. The right end of the spline shaft 5 is provided with a right external spline 6 matched with the right spline hole 8 and the right internal spline 9.
Wherein the spline shaft 5 has a certain elasticity. In the assembled and used state of the floating spline coupler, the length of the spline shaft 5 is shorter than the distance between the bottom of the left spline hole 2 and the bottom of the right spline hole 8. That is, a certain distance is kept between the left end of the spline shaft 5 and the bottom of the left spline hole 2, typically 2 mm; a certain distance is kept between the right end of the spline shaft 5 and the bottom of the right spline hole 8, which is typically 2 mm. In this way, the spline shaft 5 can float axially during rotation, and can float radially because of the radial clearance between the splines at the left and right ends of the spline shaft 5. Such couplings are therefore referred to as floating spline couplings. The floating spline coupler only transmits torque and does not transmit axial force, and the spline shaft 5 has certain elasticity and can reduce mechanical vibration.
Wherein, the one end of shaft coupling sleeve 10 is provided with left internal spigot, the telescopic other end of shaft coupling is provided with right internal spigot, left internal spigot with right internal spigot has axiality and straightness that hangs down, left internal spigot matches with the first external spigot that sets up on 1# machine (first machine), right internal spigot matches with the second external spigot that sets up on 2# machine (second machine).
In the rotating process of the machine, the matching parts between the left and right end splines of the spline shaft 5 are lubricated and cooled by oil injection, and the coupler sleeve 10 is arranged between the left shaft 1 and the right shaft 7 to play three roles: the spigot is positioned, so that coaxiality is ensured; (2) avoiding oil splatter; (3) safety protection.
In other embodiments of the application, as shown in FIG. 1. The application discloses a high-speed mechanical coupler which consists of a left shaft 1, a spline shaft 5, a right shaft 7 and a coupler sleeve 10. The joint of the left shaft 1 and the spline shaft 5 is provided with a left spline hole 2 and a left internal spline 3 which are matched. The joint of the right shaft 7 and the spline shaft 5 is provided with a right spline hole 8 and a right internal spline 9 which are matched. The left end of the spline shaft 5 is provided with a left external spline 4 matched with the left spline hole 2 and the left internal spline 3. The right end of the spline shaft 5 is provided with a right external spline 6 matched with the right spline hole 8 and the right internal spline 9. The spline shaft 5 has certain elasticity.
As shown in fig. 2. In the assembled and used state of the floating spline coupler, the length of the spline shaft 5 is shorter than the distance between the bottom of the left spline hole 2 and the bottom of the right spline hole 8. That is, a certain distance is kept between the left end of the spline shaft 5 and the bottom of the left spline hole 2, typically 2 mm; a certain distance is kept between the right end of the spline shaft 5 and the bottom of the right spline hole 8, which is typically 2 mm. In this way, the spline shaft 5 can float axially during rotation, and can float radially because of the radial clearance between the splines at the left and right ends of the spline shaft 5. Such couplings are therefore referred to as floating spline couplings.
The floating spline coupler only transmits torque and does not transmit axial force, and the spline shaft 5 has certain elasticity and can reduce mechanical vibration. The one end of shaft coupling sleeve 10 is provided with left internal spigot, the telescopic other end of shaft coupling is provided with right internal spigot, left internal spigot with right internal spigot has axiality and straightness of perpendicularity, left internal spigot matches with the first external spigot that sets up on first machine, right internal spigot matches with the second external spigot that sets up on the second machine. In the rotating process, the matching part between the left and right end splines of the spline shaft 5 is lubricated and cooled by oil injection, the coupler sleeve 10 is arranged between the left shaft 1 and the right shaft 7, so that the splashing of lubricating oil is avoided, and meanwhile, the safety protection function is also realized.
In one possible implementation, fig. 3 and 4 illustrate a specific installation process using the floating spline coupling of the present application between a machine # 1 (first machine) and a machine # 2 (second machine). The machine 1 (first machine) has the structure of the left shaft 1, and a left spline hole 2 and a left internal spline 3 matched with the joint of the spline shaft 5 are arranged. The machine No. 2 (second machine) has the structure of the right shaft 7, and a right spline hole 8 and a right internal spline 9 matched with the joint of the spline shaft 5 are arranged. As shown in fig. 3, the coupling end surfaces of the machine # 1 (first machine) and the machine # 2 (second machine) have positioning sockets that mate with the coupling sleeve 10.
As shown in fig. 3, the coupling end (left shaft 1) of the machine # 1 (first machine) is first opposed to the coupling end (right shaft 7) of the machine # 2 (second machine), and the distance between the two shaft ends is required to be greater than the length of the spline shaft 5. The machine # 1 (first machine) and the machine # 2 (second machine) are adjusted so that the coaxiality of the left shaft 1 and the right shaft 7 satisfies the requirement. The coupling sleeve 10 is fixedly mounted on the right end face positioning spigot of the # 1 machine (first machine) by bolts. The spline shaft 5 is inserted into the left spline hole 2, and the left external spline 4 is matched with the left internal spline 3. The machine # 2 (second machine) is moved along the axes of the machine # 1 (first machine) and the machine # 2 (second machine) such that the spline shaft 5 is inserted into the right spline hole 8 and the right external spline 6 is matched with the right internal spline 9.
Continuing to move the machine # 2 (second machine) along the axis of the machine # 1 (first machine) and the machine # 2 (second machine), attaching the end face of the coupling sleeve 10 to the left end face positioning spigot of the machine # 2 (second machine), and fixedly mounting the right end face of the coupling sleeve 10 on the left end face positioning spigot of the machine # 2 (second machine) by using bolts, as shown in fig. 4.
The length of the coupling sleeve 10 satisfies the following requirements:
a certain distance is kept between the left end of the spline shaft 5 and the bottom of the left spline hole 2; a certain distance is kept between the right end of the spline shaft 5 and the bottom of the right spline hole 8. The sum of the two distances is typically 4 mm.
The floating spline coupler is used for connecting two machines rotating at a high speed, and the spline shaft can axially float or radially float in the running process. The floating spline coupler only transmits torque and does not transmit axial force, and the spline shaft has certain elasticity and can effectively reduce mechanical vibration.
The floating spline coupler is simple in structure and convenient to install, and allows torque to be transmitted when axial deviation, radial deviation or angular deviation exists. Engineering application proves that the floating spline coupler is suitable for long-term continuous operation of machines with high power and high rotating speed, and has good use effect.
Claims (8)
1. A mechanical coupling, the mechanical coupling comprising:
the left shaft is provided with a left spline hole at the end part;
the right shaft is provided with a right spline hole at the end part;
the left end of the spline shaft is arranged in the left spline hole, and the right end of the spline shaft is arranged in the right spline hole;
a first gap exists between the end face of the left end of the spline shaft and the bottom of the left spline hole, and a second gap exists between the end face of the right end of the spline shaft and the bottom of the right spline hole; the spline shaft is axially floatable during rotation.
2. The mechanical coupling of claim 1, wherein the coupling comprises a plurality of coupling members,
a left internal spline is arranged in the left spline hole; a right internal spline is arranged in the right spline hole;
one end of the spline shaft is provided with a left external spline, and the other end of the spline shaft is provided with a right external spline;
wherein the left external spline is matched with the left internal spline, and the right external spline is matched with the right internal spline; and a third gap is formed between the left external spline and the left internal spline, a fourth gap is formed between the right external spline and the right internal spline, and the spline shaft can float radially in the rotating process.
3. The mechanical coupling of claim 2, wherein the spline shaft comprises a resilient shaft.
4. The mechanical coupling of claim 1, further comprising:
and a coupling sleeve disposed between the left shaft and the right shaft, the spline shaft being accommodated in the coupling sleeve.
5. The mechanical coupling of claim 4, wherein one end of the coupling sleeve is provided with a left internal spigot and the other end of the coupling sleeve is provided with a right internal spigot, the left internal spigot and the right internal spigot having coaxiality and perpendicularity.
6. The mechanical coupling of claim 5, wherein the left female end mates with a first male end provided on a first machine and the right female end mates with a second male end provided on a second machine.
7. The mechanical coupling of claim 6, wherein the first machine comprises the left shaft and the second machine comprises the right shaft.
8. The mechanical coupling of claim 2, wherein the third gap and the fourth gap are the same, and the first gap or the second gap is 2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311056854.7A CN117108640A (en) | 2023-08-21 | 2023-08-21 | Mechanical coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311056854.7A CN117108640A (en) | 2023-08-21 | 2023-08-21 | Mechanical coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117108640A true CN117108640A (en) | 2023-11-24 |
Family
ID=88799540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311056854.7A Pending CN117108640A (en) | 2023-08-21 | 2023-08-21 | Mechanical coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117108640A (en) |
-
2023
- 2023-08-21 CN CN202311056854.7A patent/CN117108640A/en active Pending
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| PB01 | Publication | ||
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