CN102720773B - Static pressure spline device - Google Patents
Static pressure spline device Download PDFInfo
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- CN102720773B CN102720773B CN201210194541.3A CN201210194541A CN102720773B CN 102720773 B CN102720773 B CN 102720773B CN 201210194541 A CN201210194541 A CN 201210194541A CN 102720773 B CN102720773 B CN 102720773B
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- oil
- spline
- spline housing
- gap
- oil hole
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Abstract
The invention discloses a static pressure spline device. The device consists of a spline shaft and a spline sleeve, wherein a gap for forming oil films is arranged between two engaged tooth faces of the spline shaft and the spline sleeve; the spline sleeve is internally provided with multiple oil holes for filling oil into the gap; a gap for compensating the axial displacement is arranged between two axial positioning surfaces of the spline shaft and the spline sleeve; and through a bolt, the spline sleeve is connected with an end cover for sealing the spline sleeve and the spline shaft. By filling pressure oil in the gap between the two engaged tooth surfaces through the oil holes, the oil films with certain rigidness are formed between the two engaged tooth surfaces, and the two teeth are separated by the oil films, so that non-rigidity contact between the teeth on the spline shaft and the spline sleeve is ensured in the torque transmission process, rigid dry friction between the traditional spline pairs is changed into liquid friction, the friction resistance between two spline pairs is overcome with little axial force in the process of transmitting high torque, and axial deformation compensation is realized.
Description
Technical field
The present invention relates to transmitting torque structure technology, particularly relate to a kind of static pressure spline device for torque load and non-torque dynamic changes process in swirl gear bearing test process.
Background technique
In the carrying experimental test procedures of the turning round equipment such as wind power generating set, automobile, in order to the actual load of simulating tested model machine bears situation, usually need the load applying six-freedom degree (along horizontal axis moment of torsion Mx, along horizontal axis locomotivity Fx, longitudinally axle locomotivity Fy, along vertical shaft locomotivity Fz, longitudinally axle driving torque My, along vertical axes moment of torsion Mz) on test specimen 01.This type of loading test system for swirl gear usually framework as shown in Figure 1: rotating driver 04 provides moment of torsion Mx for test specimen 01, non-torque loader 02 provides all the other five load except moment of torsion Mx (power Fx, power Fy, power Fz, moment of torsion My, moment of torsion Mz), is connected between rotating driver 04 with non-torque loader 02 by coupling 03.
Due to the malformation of test specimen 1 in test process, need coupling 03 automatically can carry out nose balance while transmitting torque, to ensure the normal work of loading system.Coupling 03 is according to traditional spline structure, then larger pressure can be there is in spline tooth when transmitting large torque, cause coupling spline can not free-extension (maybe need overcome very large frictional force just flexible) due to frictional force factor, finally cause the performance of whole loading system to reduce, cannot ensure that test specimen obtains the operating loading of expection.
Summary of the invention
The invention provides a kind of static pressure spline device, for overcoming defect of the prior art, realizing automatically to carry out nose balance while transmission is compared with high pulling torque, guaranteeing the normal work of loading system.
Static pressure spline device provided by the invention is made up of splined shaft and spline housing, is provided with the gap for the formation of oil film between the flank of tooth that described splined shaft engages with spline housing two, is provided with multiple for the oil hole to this gap oiling in described spline housing; Being provided with the gap for compensating axial displacement between described splined shaft and spline housing two axial locating surface, described spline housing being bolted the end cap for sealing spline housing and splined shaft.
Static pressure spline device of the present invention, reserved certain interval between splined shaft and spline housing two mesh tooth face, oily to injection pressure in this gap of the flank of tooth by the oil hole be located in spline housing by an oil hydraulic pump (flow fixed pump or variable displacement pump can be adopted) during work, thus between two mesh tooth faces, form the oil film with certain rigidity, and by oil film, two teeth are separated, ensure that two between cog in moment of torsion transmittance process on splined shaft and spline housing are without rigid contact.Achieve and become liquid friction from the rigidity dry friction between conventional spline pair, in transmitting large torque process, only the minimum axial force of need can overcome the surface friction drag between two spline pairs, realizes axial deformation and compensates.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the plan view of the embodiment of the present invention one;
Fig. 3 is along A-A to sectional view in Fig. 2;
Fig. 4 is the plan view of the embodiment of the present invention two;
Fig. 5 is along B-B to sectional view in Fig. 4.
Embodiment
Embodiment one
As shown in Figure 2 and Figure 3, the static pressure spline device that the embodiment of the present invention one provides is made up of splined shaft 1 and spline housing 2, the gap for the formation of oil film is provided with between splined shaft 1 and spline housing 2 liang of flank of tooth engaged, this gap is arranged along the radial direction of described splined shaft 1 and spline housing 2 in the present embodiment, is called radial clearance 3; The gap for compensating axial displacement is provided with between splined shaft 1 and spline housing 2 liang of axial locating surfaces, this gap can only along the axis of splined shaft 1 and spline housing 2, be called axial clearance 4, spline housing 2 is bolted the end cap 5 for sealing spline housing 2 and splined shaft 1, spline housing 2 inside is provided with multiple for the oil hole 6 to radial clearance 3 oiling.Static pressure spline device of the present invention, reserved radial clearance between splined shaft and spline housing two mesh tooth face, connected the oil hole 6 be located in spline housing by pipeline by an oil hydraulic pump during work, injection pressure oil in flank of tooth radial clearance, thus between two mesh tooth faces, form the oil film with certain rigidity, and by oil film, two teeth are separated, ensure that two between cog in moment of torsion transmittance process on splined shaft and spline housing are without rigid contact.Achieve and become liquid friction from the rigidity dry friction between conventional spline pair, in transmitting large torque process, only the minimum axial force of need can overcome the surface friction drag between two spline pairs, realizes axial deformation and compensates; Axial clearance 4 reserved between splined shaft and spline housing axial locating surface, being compensated being free to slide of generation for meeting axial deformation, realizing moving axially, being realized axis and the radial location of splined shaft by spline housing and end cap.In order to alleviate the weight of splined shaft, can establish inner chamber 10 in splined shaft inside, establish inner chamber 20 in spline housing 2 inside, axial clearance 4 is communicated with radial clearance 3, therefore, by the recyclable hydraulic oil of axial clearance 4.Axial clearance is less than or equal to 50 millimeters, specifically can select in the size of nose balance according to actual needs.Fill cup hydraulic in oil hole, between 20 ~ 40 MPas, guarantees to form the oil film with certain rigidity between splined shaft and spline housing two mesh tooth face.Radial clearance is between 0.05 ~ 0.1 millimeter, so that the fill cup hydraulic in maintenance oil hole.
Embodiment two
On the basis of embodiment one, as shown in Figure 4, Figure 5, spline housing 2 is separation structure, is made up of axle sleeve 21 and multiple oil clot 22 of joining forming this spline housing tooth; It is fan-shaped for joining oil clot 22 cross section, its two radial side offers oil groove 23, the wall inner portion of axle sleeve 21 is provided with multiple first oil hole 61, join in oil clot 22 and be provided with two the second oil holes 62, first oil hole 61 is communicated with second oil hole 62 one end, and second oil hole 62 the other end is communicated with oil groove 23 or radial clearance 3; First oil hole 61 and the second oil hole 62 form oil hole 6 jointly.As the embodiment of this embodiment, as shown in Figure 4, eachly join oil clot 22 inside to be equipped with two the second oil hole 62, second oil holes 62 L-shaped, wherein one end be opened in join oil clot 22 radial side on, the other end be opened in join oil clot 22 bigger diameter end arc outer wall on.
End cap 5 will be joined oil clot 22 and will be pressed in axle sleeve 21, together with end cap 5 is bolted with axle sleeve 21; This kind of separation structure of spline housing 2, be convenient to process oil hole 6, during work by oil hydraulic pump to the first oil hole 61 conveying liquid force feed, spray into through the second oil hole 62 again and join (radial clearance) between oil clot 22 radial side and the splined shaft flank of tooth, form oil film, two teeth are separated and realizes axial deformation compensation.The setting of oil groove 23 is advantageously in forming the oil film with certain rigidity in radial clearance.
Last it is noted that above each embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technological scheme.
Claims (5)
1. a static pressure spline device, this device is made up of splined shaft and spline housing, it is characterized in that, between the flank of tooth that described splined shaft engages with spline housing two, be provided with the gap for the formation of oil film, be provided with multiple for the oil hole to this gap oiling in described spline housing; Being provided with the gap for compensating axial displacement between described splined shaft and spline housing two axial locating surface, described spline housing being bolted the end cap for sealing spline housing and splined shaft;
The gap be arranged between the flank of tooth that described splined shaft engages with spline housing two is radial clearance, and being located at gap between described splined shaft and spline housing two axial locating surface is axial clearance;
Described axial clearance is communicated with radial clearance;
Described spline housing is separation structure, is made up of axle sleeve and multiple oil clot of joining forming this spline housing tooth; Described oil clot cross section of joining is fan-shaped, its two radial side offers oil groove, the wall inner portion of described axle sleeve is provided with multiple first oil hole, described joining in oil clot is provided with two the second oil holes, described first oil hole is communicated with described second oil hole one end, and the described second oil hole the other end is communicated with described oil groove or radial clearance; Described first oil hole and the second oil hole form described oil hole jointly.
2. static pressure spline device according to claim 1, is characterized in that, described axial clearance is less than or equal to 50 millimeters.
3. static pressure spline device according to claim 1, is characterized in that, described radial clearance is between 0.05 ~ 0.1 millimeter.
4. static pressure spline device according to claim 1, is characterized in that, the fill cup hydraulic in described oil hole is between 20 ~ 40 MPas.
5. static pressure spline device according to claim 1, it is characterized in that, join oil clot inside described in each and be equipped with two the second oil holes, described second oil hole is L-shaped, wherein one end be opened in described in join in the radial side of oil clot, join described in the other end is opened on the arc outer wall of oil clot bigger diameter end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194541.3A CN102720773B (en) | 2012-06-13 | 2012-06-13 | Static pressure spline device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194541.3A CN102720773B (en) | 2012-06-13 | 2012-06-13 | Static pressure spline device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720773A CN102720773A (en) | 2012-10-10 |
| CN102720773B true CN102720773B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210194541.3A Active CN102720773B (en) | 2012-06-13 | 2012-06-13 | Static pressure spline device |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115614397B (en) * | 2022-09-27 | 2023-09-26 | 昆山安控发展装备有限公司 | Spline silencing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4103978A (en) * | 1975-03-13 | 1978-08-01 | Hoogovens Ijmuiden, B.V. | Liquid passage through a machine-part |
| CN201062602Y (en) * | 2007-06-11 | 2008-05-21 | 呼和浩特众环(集团)有限责任公司 | Upright fixed oil cylinder |
| CN201155530Y (en) * | 2008-02-13 | 2008-11-26 | 黄天梵 | Spring spline coupler |
| CN201554786U (en) * | 2009-09-17 | 2010-08-18 | 宝山钢铁股份有限公司 | Splined hub capable of improving lubricating property of spline shaft |
| JP2011149519A (en) * | 2010-01-22 | 2011-08-04 | Toyota Motor Corp | Shaft |
| JP2011163536A (en) * | 2010-02-15 | 2011-08-25 | Jtekt Corp | Spline device |
-
2012
- 2012-06-13 CN CN201210194541.3A patent/CN102720773B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4103978A (en) * | 1975-03-13 | 1978-08-01 | Hoogovens Ijmuiden, B.V. | Liquid passage through a machine-part |
| CN201062602Y (en) * | 2007-06-11 | 2008-05-21 | 呼和浩特众环(集团)有限责任公司 | Upright fixed oil cylinder |
| CN201155530Y (en) * | 2008-02-13 | 2008-11-26 | 黄天梵 | Spring spline coupler |
| CN201554786U (en) * | 2009-09-17 | 2010-08-18 | 宝山钢铁股份有限公司 | Splined hub capable of improving lubricating property of spline shaft |
| JP2011149519A (en) * | 2010-01-22 | 2011-08-04 | Toyota Motor Corp | Shaft |
| JP2011163536A (en) * | 2010-02-15 | 2011-08-25 | Jtekt Corp | Spline device |
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| Publication number | Publication date |
|---|---|
| CN102720773A (en) | 2012-10-10 |
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