CN220909922U - Split type sloping cam plate structure - Google Patents
Split type sloping cam plate structure Download PDFInfo
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- CN220909922U CN220909922U CN202322604847.8U CN202322604847U CN220909922U CN 220909922 U CN220909922 U CN 220909922U CN 202322604847 U CN202322604847 U CN 202322604847U CN 220909922 U CN220909922 U CN 220909922U
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- swash plate
- bushing
- shaft end
- shaft
- long driving
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- 230000007704 transition Effects 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The split type swash plate structure comprises a swash plate, a long driving shaft for driving the swash plate to rotate and a detachable fixing assembly for fixing the swash plate on the long driving shaft, wherein the detachable fixing assembly comprises a swash plate bushing sleeved on the long driving shaft, a shaft end retainer ring and a shaft end locking nut, an included angle between the center line of an inner hole of the swash plate bushing and an X horizontal shaft is theta, and the outer wall of the swash plate bushing comprises a thick bushing section, a thin bushing section and a transition stage connected between the thick bushing section and the thin bushing section; the swash plate is arranged at the thin bushing section of the swash plate bushing in a transition fit manner, one surface of the swash plate abuts against the transition step section, the other surface of the swash plate abuts against one surface of the shaft end check ring, and the other surface of the shaft end check ring is positioned by the shaft end lock nut arranged on the long driving shaft; after the installation is completed, the included angle between the central line of the swash plate and the X horizontal axis is theta. According to the utility model, the angle between the swash plate bushing and the shaft end retainer ring is changed, so that the included angle between the swash plate and the X horizontal shaft can be changed, and the requirement of the compressor on adjusting performance parameters under different working conditions is met.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a swash plate structure.
Background
The compressor has very wide application in national economy and national defense construction, and particularly has become an essential key device in the industrial fields of petroleum, chemical industry, power and the like. The traditional reciprocating compressor driving mechanisms are crank-link mechanisms, have large volume and large reciprocating inertial force, and cannot realize miniaturization, light weight and high speed. With further development, a swash plate type reciprocating piston compressor having an extremely compact structure has appeared. The swash plate of the swash plate type compressor is fixed on the main shaft at a certain inclination angle, the main shaft rotates and drives the swash plate to rotate, when the swash plate rotates around the main shaft, a plurality of pistons sleeved on the periphery of the swash plate are driven by the swash plate to do axial reciprocating motion in the cylinder, so that air suction and compression strokes are alternately formed, and the working cycle process of the swash plate type compressor is completed. The most prominent advantage of swash plate compressors over other constructions is their higher efficiency.
In the existing swash plate type reciprocating piston compressor, the working face of the swash plate is a plane, the movement rule of the swash plate is determined by the included angle between the working face of the swash plate and a rotating shaft, the included angles are different, the working cycle time of the compressor and the working pressure of pistons at all levels are different, and therefore the included angle between the working face of the swash plate 2 'and the rotating shaft 1' is one of important parameters in the performance design of the compressor. The structure design and the installation mode of the prior swash plate are shown in fig. 1, after the swash plate is installed through a flat key 4 'and a shaft end locking nut 6', the included angle between the swash plate and a rotating shaft is not adjustable, and meanwhile, special processing tools are required for processing the swash plate with the inclined angle. Therefore, the processing difficulty is high, and the swash plate angle is not suitable for the adjustment of the performance of the compressor under different working conditions after being fixed.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, provide a split type swash plate structure, realize the adjustability of the angle of the swash plate, and solve the difficult problem of adjusting performance parameters of a compressor under different working conditions, and is simple to process.
The technical scheme of the utility model is as follows: the movable type swash plate comprises a swash plate, a long driving shaft for driving the swash plate to rotate and a detachable fixing assembly for fixing the swash plate on the long driving shaft, wherein the detachable fixing assembly comprises a swash plate bushing sleeved on the long driving shaft, a shaft end retainer ring and a shaft end locking nut, an included angle between the center line of an inner hole of the swash plate bushing and an X horizontal shaft is theta, and the outer wall of the swash plate bushing comprises a thick bushing section, a thin bushing section and a transition stage connected between the thick bushing section and the thin bushing section; the swash plate is arranged at the thin bushing section of the swash plate bushing in a transition fit manner, one surface of the swash plate abuts against the transition step section, the other surface of the swash plate abuts against one surface of the shaft end check ring, and the other surface of the shaft end check ring is positioned by the shaft end lock nut arranged on the long driving shaft; after the installation is completed, the included angle between the central line of the swash plate and the X horizontal axis is theta.
The surface of the thin bushing segment of the swash plate bushing is a cylindrical surface, and the included angle between the generatrix of the cylindrical surface and the central line of the inner hole of the swash plate bushing is theta.
The swash plate bush is sleeved on the long driving shaft through the flat key, the inner ring of the swash plate bush is provided with a key groove II, the long driving shaft 1 is provided with a key groove I in a machining mode, and the key groove II and the key groove I form a complete key groove matched with the flat key.
The axis of the long driving shaft is an X horizontal shaft, and an external thread section for installing a shaft end locking nut is machined on the long driving shaft.
The swash plate is in a cylindrical ring shape, and the inner circle and the outer circle are cylindrical.
One surface of the shaft end check ring is an inclined surface for being tightly attached to the inclined disc, the other surface of the shaft end check ring is a vertical surface for being tightly pressed by the shaft end lock nut, the middle part of the shaft end check ring is an eccentric through hole matched and assembled with the long driving shaft, and an included angle between the inclined surface and the vertical surface is theta degrees; after the installation is completed, the vertical surface of the shaft end check ring is perpendicular to the X horizontal axis.
The theta degree is 8-16 degrees.
The utility model has the beneficial effects that: the inclined angle adjustable swash plate structure is designed, the inner circle and the outer circle of the swash plate are cylindrical, the processing is simple, the inclined angle between the swash plate and the X horizontal axis is theta 1 degrees by installing and fixing the inclined angle on a swash plate bushing with the angle of theta 1 degrees and tightly pressing the swash plate through a shaft end retainer ring with the angle of theta 1 degrees. The included angle between the swash plate and the X horizontal axis (namely, the included angle is changed from theta to theta 1) can be changed by changing the angles of the swash plate bushing and the shaft end retainer ring, so that the requirement of the compressor for adjusting performance parameters under different working conditions is met.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of a swash plate angle unadjustable arrangement;
FIG. 2 is a schematic view of a swash plate with an adjustable inclination angle according to the present utility model;
fig. 3 is a schematic structural view of the swash plate 2;
Fig. 4 is a schematic structural view of the swash plate bush 3;
FIG. 5 is a side view of FIG. 4;
Fig. 6 is a schematic structural view of the swash plate baffle ring 5;
Fig. 7 is a schematic structural view of the drive long shaft 1.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In fig. 2 to 7, the utility model comprises a long driving shaft 1 for driving the swash plate to rotate, a swash plate 2, a swash plate bushing 3 for fixing the angle of the swash plate to be theta degrees, a flat key 4 for fixing the swash plate bushing 3, a shaft end retainer ring 5 for fixing the swash plate 2 and the swash plate bushing 3, and a shaft end lock nut 6. The long driving shaft 1 is provided with a key groove I101 for fixing the swash plate bush 3 and an external thread 102 for installing the shaft end locking nut 6. A swash plate bush 3 with a fixed angle of theta degrees is firstly installed on a long driving shaft 1 through a flat key 4, then a swash plate 2 is sleeved outside the swash plate bush 3, and finally the swash plate 2 and the swash plate bush 3 are fixed on the long driving shaft 1 through a shaft end check ring 5 and a shaft end lock nut 6. And the included angle between the center line of the inner hole of the swash plate bush 3 and the X horizontal axis is theta degrees, and a key groove II 301 is processed in the swash plate bush 3. The outer wall of the swash plate bush 3 comprises a thick bush section 304, a thin bush section 302, a transition stage 303 connected between the thick bush section and the thin bush section 302. The swash plate 2 is mounted at the thin bushing section 302 of the swash plate bushing 3 through transition fit, one surface of the swash plate 2 abuts against the transition stage 303, the other surface of the swash plate 2 abuts against one surface of the shaft end retainer ring 5, and the other surface of the shaft end retainer ring 5 is positioned by the shaft end locking nut 6 mounted on the long driving shaft 1. The swash plate bush 3 is fixed to the long drive shaft 1 at the position corresponding to the first key groove 101 by the flat key 4 placed in the second key groove 301. The fine bushing segment 302 surface of swashplate bushing 3 is angled at θ ° from the bore centerline. The surface of the thin liner segment 302 is cylindrical. The included angle between the inner hole center line of the swash plate bush 3 and the X horizontal axis is theta.
The inner circle and the outer circle of the swash plate 2 are cylindrical, the machining is simple, and no special tool is needed. The swash plate 2 is mounted to the thin bushing segment 302 of the swash plate bushing 3 by a transition fit. The included angle between the bevel edge and the right-angle edge of the shaft end check ring 5 is theta degrees, and an eccentric through hole 501 is formed in the shaft end check ring 5.
The assembly steps are as follows: the swash plate bush 3 with an angle of θ ° is passed through the long driving shaft 1, stuck to the end face of the long driving shaft 1, and the swash plate bush 3 is fixed by the flat key 4. The eccentric through hole 501 of the shaft end retainer 5 passes through the long driving shaft 1, and the inclined surface of the eccentric through hole is tightly attached to the end surface of the sloping cam plate 2. The shaft end locking nut 6 penetrates through the long driving shaft 1, is fixed on the external thread section 102 of the long driving shaft 1, compresses the right-angle side of the shaft end check ring 5, and fixes the swash plate 2, the swash plate bushing 3 and the shaft end check ring 5 on the long driving shaft 1. After the fixing, the right-angle side of the shaft end retainer ring 5 is vertical to the X horizontal shaft. The included angle between the central line of the swashplate 2 and the X horizontal axis is theta.
And (3) respectively machining the swash plate bush 3 and the shaft end check ring 5 with the angles of theta 1 degrees, wherein other parts are not changed, and after the swash plate 2 and the X horizontal shaft are assembled in sequence, the included angle of theta 1 degrees is formed. The included angle between the swashplate 2 and the X horizontal axis can be changed by changing the angles of the swashplate bushing 3 and the shaft end retainer ring 5.
The foregoing description of the exemplary embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (7)
1. A split type sloping cam plate structure, its characterized in that: the movable type swash plate comprises a swash plate (2), a long driving shaft (1) for driving the swash plate (2) to rotate, and a detachable fixing assembly for fixing the swash plate (2) on the long driving shaft, wherein the detachable fixing assembly comprises a swash plate bushing (3) sleeved on the long driving shaft (1), a shaft end retainer ring (5) and a shaft end locking nut (6), an included angle between the central line of an inner hole of the swash plate bushing (3) and an X horizontal shaft is theta, and the outer wall of the swash plate bushing (3) comprises a thick bushing section (304), a thin bushing section (302) and a transition stage (303) connected between the thick bushing section and the thin bushing section (302); the swash plate (2) is mounted at a thin bushing section (302) of the swash plate bushing (3) through transition fit, one surface of the swash plate (2) is propped against a transition stage (303), the other surface of the swash plate (2) is propped against one surface of the shaft end check ring (5), and the other surface of the shaft end check ring (5) is positioned by a shaft end lock nut (6) mounted on the long driving shaft (1); after the installation is completed, the included angle between the central line of the swashplate (2) and the X horizontal axis is theta.
2. The split swash plate structure according to claim 1, wherein: the surface of the thin bushing section (302) of the swash plate bushing (3) is a cylindrical surface, and the included angle between the generatrix of the cylindrical surface and the central line of the inner hole of the swash plate bushing (3) is theta.
3. The split swash plate structure according to claim 1, wherein: the swash plate bush (3) is sleeved on the long driving shaft (1) through the flat key (4), a key groove II (301) is formed in the inner ring of the swash plate bush (3), a key groove I (101) is formed in the long driving shaft (1), and the key groove II (301) and the key groove I (101) form a complete key groove for being matched with the flat key (4).
4. The split swash plate structure according to claim 1, wherein: the axis of the long driving shaft (1) is an X horizontal shaft, and an external thread section (102) for installing the shaft end locking nut (6) is machined on the long driving shaft (1).
5. The split swash plate structure according to claim 1, wherein: the swash plate (2) is in a cylindrical ring shape, and the inner circle and the outer circle are cylindrical.
6. The split swash plate structure according to claim 1, wherein: one surface of the shaft end retainer ring (5) is an inclined surface for being tightly attached to the swash plate (2), the other surface of the shaft end retainer ring is a vertical surface for being tightly pressed by the shaft end locking nut (6), the middle part of the shaft end retainer ring (5) is an eccentric through hole (501) matched and assembled with the long driving shaft (1), and an included angle between the inclined surface and the vertical surface is theta degrees; after the installation is completed, the vertical surface of the shaft end check ring (5) is perpendicular to the X horizontal axis.
7. The split swash plate structure according to claim 1, wherein: the theta degree is 8-16 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322604847.8U CN220909922U (en) | 2023-09-25 | 2023-09-25 | Split type sloping cam plate structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322604847.8U CN220909922U (en) | 2023-09-25 | 2023-09-25 | Split type sloping cam plate structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220909922U true CN220909922U (en) | 2024-05-07 |
Family
ID=90921011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322604847.8U Active CN220909922U (en) | 2023-09-25 | 2023-09-25 | Split type sloping cam plate structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220909922U (en) |
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2023
- 2023-09-25 CN CN202322604847.8U patent/CN220909922U/en active Active
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