CN102261992B - Spiral bevel gear coupling transmission testing stand structure possessing variable-stiffness elastic support - Google Patents
Spiral bevel gear coupling transmission testing stand structure possessing variable-stiffness elastic support Download PDFInfo
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- CN102261992B CN102261992B CN 201110100521 CN201110100521A CN102261992B CN 102261992 B CN102261992 B CN 102261992B CN 201110100521 CN201110100521 CN 201110100521 CN 201110100521 A CN201110100521 A CN 201110100521A CN 102261992 B CN102261992 B CN 102261992B
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- bevel gear
- spiral bevel
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- rotor system
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Abstract
The invention, which belongs to the mechanical transmission field, discloses a spiral bevel gear coupling transmission testing stand possessing a variable-stiffness elastic support. In the structure, a motor 1 transmits power to an active rotor system through a V belt 2. The active rotor system comprises: a variable rotary inertia assembly 5, a stepless variable stiffness supporting assembly 6 and an active spiral bevel gear, wherein the variable rotary inertia assembly, the stepless variable stiffness supporting assembly and the active spiral bevel gear are successively arranged on a driving shaft 4. A passive rotor system comprises: a passive spiral bevel gear which is connected with a driven shaft 8 and a load assembly 10 which is connected with the driven shaft 8 through a flexible coupling 9. The active rotor system drives the passive rotor system to rotate through a spiral bevel gear pair formed by the active spiral bevel gear and the passive spiral bevel gear. The invention has a simple structure, provides the stepless variable stiffness support and the variable rotary inertia. When support rigidity and the rotary inertia are needed to be changed, a rotor portion of the testing stand is not needed to be demounted and an engaging position of the spiral bevel gear is not destroyed so as to have little influence on test precision.
Description
Technical field
The present invention relates to a kind of spiral bevel gear coupled drive testing table, relate in particular to a kind of flexibly mounted spiral bevel gear coupled drive of the rigidity of change testing table that has, belong to mechanical transmission fields.
Background technology
Many rotors of spiral bevel gear coupling kinematic train has a wide range of applications in aeromotor, helicopter, boats and ships etc. relate to the important equipment of national defence and the development of the national economy.Raising along with the rotating speed of equipment, the vibration problem of spiral bevel gear Rotor-Coupling System is more and more outstanding, in order to improve the vibration characteristics of rotor-support-foundation system, in the kinematic trains such as aeromotor, helicopter, boats and ships, more and more adopt elastic bearing, so not only can reduce the natural frequency of rotor-support-foundation system, make system cross as early as possible first critical speed, be stabilized between single order and second order critical rotary speed and work, and can reduce vibration acceleration and vibration amplitude, thereby reduce noise.But, if flexibly mounted rigidity Design is unreasonable, can cause the change of the spiral bevel gear position of engagement, reduce the spiral bevel gear contact stabilization, edge contact namely occurs, reduce the functional reliability of Spiral Bevel Gear Transmission.Therefore, under elastic bearing the research of the vibration characteristics of spiral bevel gear Rotor-Coupling System and contact performance to become aviation, boats and ships Design of Transmission System be problems of concern the most.
In recent years, theoretical analysis research work about spiral bevel gear Rotor-Coupling System vibration under elastic bearing is carried out often, but relevant experimental verification work is carried out fewer, for the feasibility of verifying Spiral Bevel Gear Transmission under specific occasion system or the correctness of a certain theory, just need the simulator stand of spiral bevel gear coupled transmission mechanism.
At present, also there is no to find the testing table with structure similar of the present invention in the laboratory of correlative study institute, enterprise and colleges and universities, by the akin patent with the present invention is not found in the retrieval of patent database yet.Find by the laboratory investigation to domestic relevant unit, the design concept of its testing table comes from the rotor cage type elastic support method for designing of introducing in " Aeroengine Design handbook 19: rotor dynamics and complete machine oscillation " book, adjust support stiffness by changing mouse cage, the corresponding a kind of support stiffness of each mouse cage, each support stiffness of adjusting all must be taken the rotor portion of whole testing table apart, change mouse cage, the adjustment of rigid disc moment of inertia also must be taken the rotor portion of whole testing table apart, wastes time and energy very much; Because spiral bevel gear is higher to the installation site accuracy requirement, every dismounting once needs the long period to adjust, otherwise may cause test failure or gear failure because of alignment error simultaneously.
Summary of the invention
Become in the flexibly mounted spiral bevel gear coupled drive of rigidity testing table in order to overcome tradition, to the deficiency that the adjustment of support stiffness, rigid disc moment of inertia is wasted time and energy, the invention provides a kind of stepless variable rigidity bearing new structure that the power rotor system just can adjust rigidity that do not need to dismantle; Provided simultaneously a kind of new structure that becomes the rigid disc moment of inertia.
The technical solution adopted in the present invention is: a kind of have become the flexibly mounted spiral bevel gear coupled drive of rigidity testing table, motor 1 is with 2 power is reached the power rotor system by V; Described power rotor system forms by being arranged on successively change moment of inertia assembly 5, stepless variable rigidity bearing assembly 6 and a driving spiral bevel on main drive shaft 4; The passive rotor system comprises the passive spiral bevel gear that connects driven shaft 8, and passes through the load component 10 that flexible coupling 9 is connected with driven shaft 8; The rotation of described power rotor system forms by driving spiral bevel and passive spiral bevel gear the moving described passive rotor of spiral bevel gear subband system, the curved-tooth bevel gear wheel set that driving spiral bevel and passive spiral bevel gear form is arranged in curved-tooth bevel gear roller box 7;
The axial line of main drive shaft 4, change moment of inertia assembly 5, stepless variable rigidity bearing assembly 6, driving spiral bevel, passive spiral bevel gear, driven shaft 8, flexible coupling 9 and load component 10 is on same level;
Described stepless variable rigidity bearing assembly 6 comprises flexible sleeve insert 11, supporting base 12, rigid sleeve 13, bearing 14; Described flexible sleeve insert 11 is the thin-walled external thread sleeve of squirrel-cage, and its left end is fixed on supporting base 12 by screw and locating surface; Bearing 14 is installed in the right-hand member face of cylinder of flexible sleeve insert 11; Rigid sleeve 13 is inner thread sleeve, the wall thickness h of rigid sleeve 13
1Wall thickness h with flexible sleeve insert 11
2Satisfy relational expression: h
1〉=3h
2The internal thread of rigid sleeve 13 equates with the externally threaded nominal diameter of flexible sleeve insert 11; The left end periphery of rigid sleeve 13 and supporting base 12 inner headed faces are clearance fit:
The rigidity that 6 pairs of stepless variable rigidity bearing assemblies power rotor system provides depends on the combined action of bearing 14 and flexible sleeve insert 11, and when rigid sleeve 13 screwed out supporting base 12 to the right, it is large that integral stiffness becomes; Left during precession supporting base 12, integral stiffness diminishes when rigid sleeve 13; Coordinate corresponding scale value on rigid sleeve 13, the rigidity value that just can provide exactly test to need;
Described change moment of inertia assembly 5 comprises slip rigid disc 15 and two rigidity semi-discs 16, is clearance fit between the periphery of the inner headed face of described slip rigid disc 15 and main drive shaft 4:
Trip bolt is fastened on slip rigid disc 15 on main drive shaft 4, produces relative sliding between anti-skidding rigid disc 15 and main drive shaft 4; Two rigidity semi-discs 16 are arranged on slip rigid disc 15 by bolt and screw; When needs change moment of inertia, change corresponding rigidity semi-disc 16, so just can be for test provide suitable moment of inertia, and do not need to take apart the power rotor system.
The invention has the beneficial effects as follows: having of providing becomes the flexibly mounted spiral bevel gear coupled drive of rigidity testing table, its advantage is: simple in structure, stepless variable rigidity bearing is provided and has become moment of inertia, when changing support stiffness and moment of inertia, do not dismantle the rotor portion of testing table, the position of engagement of failure arc bevel gear, not little on the impact of test accuracy.
Description of drawings
Fig. 1 has the overall construction drawing that becomes the flexibly mounted spiral bevel gear coupled drive of rigidity testing table
Fig. 2 is the structural representation of stepless variable rigidity bearing assembly 6
Fig. 3 is the structural representation that becomes moment of inertia assembly 5
Fig. 4 is the A-A cut-open view of Fig. 3
Reference numeral in figure is, 1. motor; 2.V band; 3. non-yielding prop assembly; 4. main drive shaft; 5. become the moment of inertia assembly; 6. stepless variable rigidity bearing assembly; 7. curved-tooth bevel gear roller box; 8. driven shaft; 9. flexible coupling; 10. load component; 11. flexible sleeve insert; 12. supporting base; 13. rigid sleeve; 14. bearing; 15. slip rigid disc; 16. rigidity semi-disc.
Embodiment
Now the present invention will be further described by reference to the accompanying drawings.
Fig. 1 is for having the overall construction drawing that becomes the flexibly mounted spiral bevel gear coupled drive of rigidity testing table; Motor 1 is with 2 power is reached the power rotor system by V, and V is with 2 to have damping effect, can reduce the vibration of motor 1 to the impact of power rotor system; Described power rotor system by be arranged on successively one on main drive shaft 4 non-yielding prop assembly 3, become moment of inertia assembly 5, stepless variable rigidity bearing assembly 6 and driving spiral bevel and form; The passive rotor system comprises the passive spiral bevel gear that connects driven shaft 8, and passes through the load component 10 that flexible coupling 9 is connected with driven shaft 8; The rotation of described power rotor system forms by driving spiral bevel and passive spiral bevel gear the moving described passive rotor of spiral bevel gear subband system, the curved-tooth bevel gear wheel set that driving spiral bevel and passive spiral bevel gear form is arranged in curved-tooth bevel gear roller box 7;
The axial line of non-yielding prop assembly 3, main drive shaft 4, change moment of inertia assembly 5, stepless variable rigidity bearing assembly 6, driving spiral bevel, passive spiral bevel gear, driven shaft 8, flexible coupling 9 and load component 10 is on same level;
Consult Fig. 2, stepless variable rigidity bearing assembly 6 comprises flexible sleeve insert 11, supporting base 12, rigid sleeve 13, bearing 14; Described flexible sleeve insert 11 is the thin-walled external thread sleeve of squirrel-cage, and its left end is fixed on supporting base 12 by screw and locating surface, and bearing 14 is installed in the right-hand member face of cylinder of flexible sleeve insert 11; Rigid sleeve 13 is inner thread sleeve, the wall thickness h of rigid sleeve 13
1Be 13mm, the wall thickness h of flexible sleeve insert 11
2Be 4mm, the externally threaded nominal diameter of the internal thread of rigid sleeve 13 and flexible sleeve insert 11 is 72mm; The left end periphery of rigid sleeve 13 and supporting base 12 inner headed faces are clearance fit:
The rigidity that 6 pairs of stepless variable rigidity bearing assemblies power rotor system provides depends on the combined action of bearing 14 and flexible sleeve insert 11; When rigid sleeve 13 screwed out supporting base 12 to the right, it is large that integral stiffness becomes; Left during precession supporting base 12, integral stiffness diminishes when rigid sleeve 13; Coordinate corresponding scale value on rigid sleeve 13, the rigidity value that just can provide exactly test to need;
Consult Fig. 3, for becoming moment of inertia assembly 5; Be clearance fit between the periphery of the inner headed face of slip rigid disc 15 and main drive shaft 4:
Trip bolt is fastened on slip rigid disc 15 on main drive shaft 4, produces relative sliding between anti-skidding rigid disc 15 and main drive shaft 4; Two rigidity semi-discs 16 are arranged on slip rigid disc 15 by bolt and screw, when needs change moment of inertia, change corresponding rigidity semi-disc 16, for test provides suitable moment of inertia, and do not need to take apart the power rotor system.
Claims (1)
1. one kind has and becomes the flexibly mounted spiral bevel gear coupled drive of rigidity testing table, it is characterized in that, motor (1) is with (2) that power is reached the power rotor system by V; Described power rotor system is comprised of the change moment of inertia assembly (5), stepless variable rigidity bearing assembly (6) and the driving spiral bevel that are arranged on successively on a main drive shaft (4); The passive rotor system comprises the passive spiral bevel gear that connects driven shaft (8), and passes through the load component (10) that flexible coupling (9) is connected with driven shaft (8); The rotation of described power rotor system forms by driving spiral bevel and passive spiral bevel gear the moving described passive rotor of spiral bevel gear subband system, the curved-tooth bevel gear wheel set that driving spiral bevel and passive spiral bevel gear form is arranged in curved-tooth bevel gear roller box (7);
The axial line of main drive shaft (4), change moment of inertia assembly (5), stepless variable rigidity bearing assembly (6), driving spiral bevel, passive spiral bevel gear, driven shaft (8), flexible coupling (9) and load component (10) is on same level;
Described stepless variable rigidity bearing assembly (6) comprises flexible sleeve insert (11), supporting base (12), rigid sleeve (13), bearing (14); Described flexible sleeve insert (11) is the thin-walled external thread sleeve of squirrel-cage, and its left end is fixed on supporting base (12) by screw and locating surface; Bearing (14) is installed in the right-hand member face of cylinder of flexible sleeve insert (11); Rigid sleeve (13) is inner thread sleeve, the wall thickness h of rigid sleeve (13)
1Wall thickness h with flexible sleeve insert (11)
2Satisfy relational expression: h
1〉=3h
2The internal thread of rigid sleeve (13) equates with the externally threaded nominal diameter of flexible sleeve insert (11); The left end periphery of rigid sleeve (13) and supporting base (12) inner headed face are clearance fit:
Described change moment of inertia assembly (5) comprises slip rigid disc (15) and two rigidity semi-discs (16), is clearance fit between the periphery of the inner headed face of described slip rigid disc (15) and main drive shaft (4):
Trip bolt is fastened on slip rigid disc (15) on main drive shaft (4), produces relative sliding between anti-skidding rigid disc (15) and main drive shaft (4); Two rigidity semi-discs (16) are arranged on slip rigid disc (15) by bolt and screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100521 CN102261992B (en) | 2011-04-21 | 2011-04-21 | Spiral bevel gear coupling transmission testing stand structure possessing variable-stiffness elastic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110100521 CN102261992B (en) | 2011-04-21 | 2011-04-21 | Spiral bevel gear coupling transmission testing stand structure possessing variable-stiffness elastic support |
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| Publication Number | Publication Date |
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| CN102261992A CN102261992A (en) | 2011-11-30 |
| CN102261992B true CN102261992B (en) | 2013-06-05 |
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| CN 201110100521 Expired - Fee Related CN102261992B (en) | 2011-04-21 | 2011-04-21 | Spiral bevel gear coupling transmission testing stand structure possessing variable-stiffness elastic support |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589873A (en) * | 2012-01-13 | 2012-07-18 | 上海新孚美变速箱技术服务有限公司 | Dynamic detector for automobile automatic transmission assembly |
| CN102607847A (en) * | 2012-03-08 | 2012-07-25 | 北京工业大学 | Dynamic stiffness test device of main shaft bearing combination part |
| CN103234747B (en) * | 2013-03-28 | 2015-04-29 | 浙江大学 | Test stand capable of adjusting installation errors for comprehensive performance of spiral bevel gears |
| CN103434656B (en) * | 2013-09-10 | 2015-07-01 | 北京航空航天大学 | Rigidity simulator with variable rigidity |
| CN103528824B (en) * | 2013-10-31 | 2015-09-30 | 华中科技大学 | Based on the inner-outer birotor fault simulation experiment table of elastic foundation |
| CN109406128A (en) * | 2018-12-07 | 2019-03-01 | 山东洛轴所轴承研究院有限公司 | The shafting testing stand and test method of variable stiffness and bearing layout |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456872A (en) * | 2003-04-17 | 2003-11-19 | 西北工业大学 | Method for diagnosing gear and rolling bearing breakdown |
| JP2010281582A (en) * | 2009-06-02 | 2010-12-16 | Sumitomo Metal Ind Ltd | Method for determining use limit of gear-type shaft coupling |
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2011
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456872A (en) * | 2003-04-17 | 2003-11-19 | 西北工业大学 | Method for diagnosing gear and rolling bearing breakdown |
| JP2010281582A (en) * | 2009-06-02 | 2010-12-16 | Sumitomo Metal Ind Ltd | Method for determining use limit of gear-type shaft coupling |
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| CN102261992A (en) | 2011-11-30 |
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