CN220850455U - Split external spline transmission structure with radial compensation capability - Google Patents
Split external spline transmission structure with radial compensation capability Download PDFInfo
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- CN220850455U CN220850455U CN202322759090.XU CN202322759090U CN220850455U CN 220850455 U CN220850455 U CN 220850455U CN 202322759090 U CN202322759090 U CN 202322759090U CN 220850455 U CN220850455 U CN 220850455U
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- external spline
- spline
- spline transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 102
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 230000009347 mechanical transmission Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model belongs to the technical field of mechanical transmission, and discloses a split type external spline transmission structure with radial compensation capability, which comprises a flat key sleeve-internal spline transmission shaft, a steel wire check ring and a double-end external spline transmission shaft, wherein the internal spline end of the flat key sleeve-internal spline transmission shaft is in matched connection with one end external spline of the double-end external spline transmission shaft, a gap is arranged at the matched position of the internal spline and the external spline of the flat key sleeve-internal spline transmission shaft, a step is also arranged at the joint of the flat key sleeve-internal spline transmission shaft and the double-end external spline transmission shaft, the steel wire check ring is arranged in a step matching surface of the flat key sleeve-internal spline transmission shaft and the double-end external spline transmission shaft, and the step is in small gap fit. The spline shaft adopts a split structure, and has axial positioning capability and good assembly property in order to avoid the conditions of axial movement, poor engagement and the like caused by loosening and disassembly in the transmission process. The external spline transmission mechanism needs continuous transmission for a long time, can form abrasion deformation phenomenon, and has slightly softer material hardness than the hardness of the internal spline of the product in order to protect the product to be tested.
Description
Technical Field
The utility model belongs to the technical field of mechanical transmission, relates to a transmission structure of an aviation lubricating oil pump test system, and particularly relates to a split external spline transmission structure with radial compensation capability.
Background
The aviation lubricating oil pump using mechanical transmission as a power source adopts a transmission structure of a multi-tooth involute spline due to the characteristics of relatively high rotating speed, limited space of a transmission mechanism, high transmission precision and the like, and when a tested product is of an internal spline structure, a test system is required to be provided with a matched external spline structure so as to realize transmission.
The power source of the test system is mostly a high-speed motor or a common motor equipped with a speed increasing box, and after a torque and rotation speed measuring link, the power is output to a special spline shaft matched with a tested product through a flat spline shaft through a transition shaft structure.
The special spline shaft connected with the tested product is of a structure with two matched ends, the power input end receives the power of the testing system through the flat key shaft sleeve structure, and the power output end transmits the power to the tested product through the external spline structure.
The original external spline transmission shaft adopts an integrated structure, radial compensation capability is not achieved, a certain radial runout exists between the flat spline shaft of the transition shaft structure and the external spline transmission shaft, the runout can be transmitted to a spline engagement position through the external spline shaft, coaxiality of a driven internal-external spline pair is poor, stress and noise are generated, the transmission effect of a transmission mechanism is deteriorated, and the service life of the transmission mechanism is shortened. All parts are required to achieve high machining precision to meet the transmission requirement, so that the machining cost is high; and after each product change or tool reinstallation, the operation of mechanical alignment is needed for fine adjustment of the installation state of the test tool so as to meet the transmission requirement, so that a large amount of time and manpower resources are consumed for each tool change.
Disclosure of utility model
The purpose of the utility model is that: the split external spline transmission structure with the radial compensation capability is provided, and the split external spline transmission structure is adopted to avoid the conditions of axial movement, poor engagement and the like caused by loosening and disassembly in the transmission process.
The technical scheme of the utility model is as follows:
the utility model provides a split type external spline transmission structure with radial compensation ability, includes flat key cover-internal spline transmission shaft, steel wire retaining ring and bi-polar external spline transmission shaft, and the internal spline end of flat key cover-internal spline transmission shaft is connected with the one end external spline cooperation of bi-polar external spline transmission shaft, and the internal and external spline cooperation department of both is equipped with the clearance, and the junction of flat key cover-internal spline transmission shaft and bi-polar external spline transmission shaft still is equipped with step cooperation, and steel wire retaining ring establishes in the step cooperation face of both, and step cooperation is little clearance fit.
Further, the internal spline of the flat sleeve-internal spline transmission shaft and the external spline of the double-end external spline transmission shaft are connected through an involute spline pair with gap matching amount, so that a radial transmission gap larger than the maximum radial geometric deviation generated in the manufacturing and assembling processes of the spline transmission mechanism is formed.
Further, a step inner hole is formed in the outer end portion of an inner spline of the flat key sleeve-inner spline transmission shaft, a protruding step structure is arranged on the inner side of an outer spline of the double-end outer spline transmission shaft, and the step inner hole is matched with the step structure in a small gap.
Further, the step inner hole is provided with a hole retainer ring groove, the step structure is provided with a shaft retainer ring groove, and the steel wire retainer ring is arranged in an annular hole formed by matching the hole retainer ring groove and the shaft retainer ring groove.
Further, the hardness of the materials of the flat sleeve-inner spline transmission shaft and the double-end outer spline transmission shaft is slightly lower than that of the product inner spline connected with the other outer spline of the double-end outer spline transmission shaft.
Further, the small gap of the step fit is smaller than the gap of the inner and outer spline fit.
The utility model has the technical effects that:
1. The spline shaft adopts a split structure, and has axial positioning capability and good assembly property in order to avoid the conditions of axial movement, poor engagement and the like caused by loosening and disassembly in the transmission process.
2. The external spline transmission mechanism needs continuous transmission for a long time, can form abrasion deformation phenomenon, and has slightly softer material hardness than the hardness of the internal spline of the product in order to protect the product to be tested.
3. The radial compensation capability is larger than the maximum radial geometric deviation generated in the manufacturing and assembling processes of the spline transmission mechanism, the machining precision of the part is properly reduced, and the machining cost of the part is reduced.
4. The requirement of transmission precision can be met without mechanical alignment, and the production preparation time is shortened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings required to be used in the embodiments of the present utility model, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded view of the structure of the present utility model;
FIG. 3 is a schematic view of a flat key sleeve-internal spline drive shaft of the present utility model;
FIG. 4 is a schematic view of a wire retainer ring of the present utility model;
FIG. 5 is a schematic view of a double ended externally splined driveshaft of the present utility model;
Wherein, 1-flat key sleeve-internal spline transmission shaft, 2-steel wire retainer ring, 3-double end external spline transmission shaft.
Detailed Description
This section is an embodiment of the present utility model for explaining and explaining the technical solution of the present utility model. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. refer to directions or positional relationships given to the drawings for convenience of description and simplicity of description, and do not indicate or imply that the apparatus or case in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "first," "second," etc. may explicitly or implicitly include more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the mechanical connection can be realized, and the point connection can be realized; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
Example 1:
The utility model provides a split type external spline transmission structure with radial compensation ability, includes flat key cover-internal spline transmission shaft 1, steel wire retaining ring 2 and bi-polar external spline transmission shaft 3, the internal spline end of flat key cover-internal spline transmission shaft 1 is connected with the one end external spline cooperation of bi-polar external spline transmission shaft 3, the internal and external spline cooperation department of two is equipped with the clearance, the junction of flat key cover-internal spline transmission shaft 1 and bi-polar external spline transmission shaft 3 still is equipped with the step cooperation, steel wire retaining ring 2 is established in the step cooperation face of two, the step cooperation is little clearance fit.
The internal spline of the flat key sleeve-internal spline transmission shaft 1 and the external spline of the double-end external spline transmission shaft 3 are connected through an involute spline pair with clearance fit amount, so that a radial transmission clearance larger than the maximum radial geometric deviation generated in the manufacturing and assembling processes of the spline transmission mechanism is formed.
The end part of the outer side of the internal spline of the flat key sleeve-internal spline transmission shaft 1 is provided with a step inner hole, the inner side of the external spline of the double-end external spline transmission shaft 3 is provided with a convex step structure, and the step inner hole is matched with the step structure in a small clearance.
The step hole is equipped with hole retainer ring groove, and step structure is equipped with the axle retainer ring groove, and steel wire retainer ring 2 is established in the annular hole that hole retainer ring groove and axle retainer ring groove cooperation formed.
The hardness of the materials of the flat key sleeve-inner spline transmission shaft 1 and the double-end outer spline transmission shaft 3 is slightly lower than that of the product inner spline connected with the other outer spline of the double-end outer spline transmission shaft 3.
The small gap of the step fit is smaller than the gap of the inner spline fit and the outer spline fit.
Example 2:
The external spline transmission structure consists of a flat key sleeve-internal spline transmission shaft 1, a steel wire retainer ring 2 and a double-end external spline transmission shaft 3, wherein the flat key sleeve-internal spline transmission shaft 1 and the double-end external spline transmission shaft 3 are connected through an involute spline pair with gap matching amount to form a radial transmission gap which is larger than the maximum radial geometric deviation generated in the manufacturing and assembling processes of the spline transmission mechanism.
The flat key sleeve-inner spline transmission shaft 1 and the double-end outer spline transmission shaft 3 are integrated into a whole with reasonable clearance fit by the hole check ring groove on the flat key sleeve-inner spline transmission shaft 1, the shaft check ring groove on the double-end outer spline transmission shaft 3 and the steel wire check ring 2.
The hardness of the material of the shaft is slightly softer than that of the internal spline of the product.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about various equivalent modifications or substitutions within the technical scope of the present utility model, and these modifications or substitutions should be covered in the scope of the present utility model.
Claims (6)
1. The utility model provides a split type external spline transmission structure with radial compensation ability, a serial communication port, including flat key cover-internal spline transmission shaft (1), steel wire retaining ring (2) and bi-polar external spline transmission shaft (3), the internal spline end of flat key cover-internal spline transmission shaft (1) is connected with the one end external spline cooperation of bi-polar external spline transmission shaft (3), the internal and external spline cooperation department of both is equipped with the clearance, the junction of flat key cover-internal spline transmission shaft (1) and bi-polar external spline transmission shaft (3) still is equipped with step cooperation, steel wire retaining ring (2) are established in the step cooperation face of both, step cooperation is little clearance fit.
2. A split external spline transmission structure with radial compensation capability according to claim 1, characterized in that the internal spline of the flat sleeve-internal spline transmission shaft (1) and the external spline of the double-ended external spline transmission shaft (3) are connected by an involute spline pair with clearance fit, forming a radial transmission clearance that is larger than the maximum radial geometrical deviation generated during the manufacture and assembly of the spline transmission mechanism.
3. The split type external spline transmission structure with radial compensation capability according to claim 1, wherein a step inner hole is formed in the end part of the external spline of the flat key sleeve-internal spline transmission shaft (1), a convex step structure is formed in the inner side of the external spline of the double-end external spline transmission shaft (3), and the step inner hole is matched with the step structure in a small gap.
4. A split external spline transmission structure with radial compensation capability according to claim 3, wherein the step inner hole is provided with a hole retainer groove, the step structure is provided with a shaft retainer groove, and the steel wire retainer (2) is arranged in an annular hole formed by the hole retainer groove and the shaft retainer groove in a matched manner.
5. A split external spline transmission structure with radial compensation capability according to claim 1, characterized in that the material hardness of the flat sleeve-internal spline transmission shaft (1) and the double-ended external spline transmission shaft (3) is slightly lower than the hardness of the internal spline of the product to which the other external spline of the double-ended external spline transmission shaft (3) is connected.
6. A split external spline transmission having radial compensation capability as claimed in claim 1, wherein the small gap of the step fit is smaller than the gap of the internal and external spline fits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322759090.XU CN220850455U (en) | 2023-10-13 | 2023-10-13 | Split external spline transmission structure with radial compensation capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322759090.XU CN220850455U (en) | 2023-10-13 | 2023-10-13 | Split external spline transmission structure with radial compensation capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220850455U true CN220850455U (en) | 2024-04-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322759090.XU Active CN220850455U (en) | 2023-10-13 | 2023-10-13 | Split external spline transmission structure with radial compensation capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220850455U (en) |
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2023
- 2023-10-13 CN CN202322759090.XU patent/CN220850455U/en active Active
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