CN212028005U - Rotary body device and swing type variable displacement compressor - Google Patents
Rotary body device and swing type variable displacement compressor Download PDFInfo
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- CN212028005U CN212028005U CN201922194814.4U CN201922194814U CN212028005U CN 212028005 U CN212028005 U CN 212028005U CN 201922194814 U CN201922194814 U CN 201922194814U CN 212028005 U CN212028005 U CN 212028005U
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- swash plate
- arc
- variable displacement
- displacement compressor
- shaped groove
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Abstract
The utility model discloses a rotator device and a swing type variable displacement compressor, wherein the rotator device comprises extension end parts which are formed on a rotating arm, and an interval is arranged between the two extension end parts; a connecting end portion formed on the swash plate, the connecting end portion being located between the two extending end portions; the arc-shaped groove is formed on the connecting end part; the two ends of the pin shaft are respectively connected with the two extending end parts, wherein the pin shaft traverses the arc-shaped groove and slides back and forth in the arc-shaped groove to enable the swash plate to move in the direction close to or far away from the rotating arm; and the vent hole is arranged in the main shaft, and two ends of the vent hole are communicated, wherein one end of the vent hole faces to the matching part of the pin shaft and the arc-shaped groove. The utility model discloses simple structure, simple to operate has reduced the frictional resistance between arc wall and the round pin axle moreover, has further reduced the noise of swaing formula variable displacement compressor, has improved the nimble motion of swaing formula variable displacement compressor, has prolonged the life of swaing formula variable displacement compressor.
Description
Technical Field
The utility model relates to a rotator device and formula variable displacement compressor sways.
Background
The oscillating variable displacement compressor sucks gas from a suction chamber according to the reciprocating motion of a piston, compresses the gas in an inner hole of a cylinder body, and then discharges the gas from a discharge chamber. The piston is used for supporting and leaning on the sloping cam plate, and swing formula variable displacement compressor changes the discharge amount of gas through changing the inclination of sloping cam plate in the rotary body device, and the inclination of sloping cam plate changes based on the pressure difference change between the pressure in the bent axle chamber and the pressure in the cylinder block hole, and when suction pressure changes along with refrigerant load, the pressure in the bent axle chamber has changed the inclination of rotatory sloping cam plate with the difference of suction pressure, has changed the stroke size of piston promptly to the discharge capacity of adjustment swing formula variable displacement compressor has been realized.
The tilting tray is driven by the rotating arm to rotate together with the main shaft, and meanwhile, the tilting tray can move relative to the rotating arm when the tilting angle is changed. Therefore, the joint of the rotating arm and the inclined plate needs to bear a large amount of movement, the existing joint is complex to connect, the abrasion of the joint is large, the reliability is reduced, and great noise is generated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that the junction structure is complicated for overcoming among the prior art rocking arm and sloping cam plate, produces wearing and tearing easily and leads to the reliability to reduce, and the great defect of noise provides a rotator device and formula variable displacement compressor sways.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides a rotator device for swing formula variable displacement compressor, includes main shaft, rocking arm and sloping cam plate, wherein, the rocking arm is connected on the main shaft, the sloping cam plate rotationally overlaps and is established on the main shaft, its characterized in that, rotator device still includes:
two extending end parts formed on the rotating arm, wherein the two extending end parts are arranged at intervals;
a connecting end portion formed on the swash plate, the connecting end portion being located between the two extending end portions;
an arcuate slot formed in said attachment end portion;
the two ends of the pin shaft are respectively connected with the two extending end parts, wherein the pin shaft traverses the arc-shaped groove and slides back and forth in the arc-shaped groove to enable the swash plate to move in a direction close to or far away from the rotating arm;
and the vent hole is arranged in the main shaft, two ends of the vent hole are communicated, and one end of the vent hole faces to the matching position of the pin shaft and the arc-shaped groove.
The pin shaft is inserted into the arc-shaped groove and connected with the swash plate, so that the installation is convenient. Meanwhile, the pin shaft slides in the arc-shaped groove, so that the inclination angle of the swash plate is changed, and the structure is simple. Wherein, the connecting end part and the arc-shaped groove are further subjected to a hardening method of quenching treatment so as to improve the wear resistance of the connecting end part and the arc-shaped groove and prolong the service life of the variable displacement compressor.
Oil is injected into the other end of the vent hole, so that the oil can enter between the pin shaft and the swash plate, the friction resistance between the arc-shaped groove and the pin shaft is reduced, the pin shaft is more stable when rotating on the arc-shaped groove, the noise of the swing type variable displacement compressor is further reduced, the flexible movement of the swing type variable displacement compressor is improved, and the service life of the variable displacement compressor is prolonged.
Preferably, the pin shaft is axially limited at the extending end part through a retainer ring. The pin shaft can be quickly and conveniently installed and detached through the retainer ring.
Preferably, the extension end portion is inclined with respect to a body of the boom and extends obliquely toward the swash plate.
Preferably, an end surface of the connection end portion facing the extension end portion is an arc surface.
Preferably, a first limiting portion protruding outwards is arranged on one side, facing the swash plate, of the bottom of the rotating arm, a second limiting portion protruding outwards is arranged on one side, facing the rotating arm, of the swash plate, and the second limiting portion abuts against the first limiting portion when the swash plate is at the maximum inclination angle. When the pressure in the crankshaft cavity is equal to the pressure in the inner hole of the cylinder body, the pressure in the crankshaft cavity is reduced and approaches to the suction pressure of the suction cavity, at the moment, the swash plate is kept at the position of the maximum inclination angle, the second limiting part on the swash plate is abutted against the first limiting part on the rotating arm to limit further inclination, the displacement of the variable displacement compressor is enabled to be maximum, and the safety and stability of the variable displacement compressor are improved.
Preferably, the other end of the vent hole faces the end of the main shaft.
Preferably, a planetary disc is arranged on one side of the swash plate, and a bearing is arranged between the planetary disc and the swash plate.
Preferably, the planetary plate is connected with a plurality of pistons and drives the pistons to reciprocate.
Preferably, the rotating arm is connected with the main shaft through an elastic spiral pin.
A swing type variable displacement compressor characterized by comprising the rotating body device.
The utility model discloses an actively advance the effect and lie in: the utility model discloses simple structure, simple to operate has reduced the frictional resistance between arc wall and the round pin axle moreover, has further reduced the noise of swaing formula variable displacement compressor, has improved the nimble motion of swaing formula variable displacement compressor, has prolonged the life of swaing formula variable displacement compressor.
Drawings
Fig. 1 is a schematic structural view of a rotator device according to a preferred embodiment of the present invention.
Fig. 2 is a schematic top view of a partial cross-sectional structure of a swash plate according to a preferred embodiment of the present invention.
Fig. 3 is a schematic top view partially cross-sectional view of a rotating arm according to a preferred embodiment of the present invention.
Fig. 4 is a schematic structural view of a swing type variable displacement compressor according to a preferred embodiment of the present invention.
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1-4, the utility model discloses a rotator device for swing type variable displacement compressor, including main shaft 3, rocking arm 2 and sloping cam plate 1, wherein, rocking arm 2 connects on main shaft 3, and sloping cam plate 1 rotationally overlaps and establishes on main shaft 3.
As shown in fig. 1 and 3, the rotation arm 2 of the present embodiment includes two extension end portions 21, and the extension end portions 21 are formed on the rotation arm 2, wherein the two extension end portions 21 are spaced apart from each other.
As shown in fig. 1 and 2, the swash plate 1 of the present embodiment includes a connecting end portion 11, the connecting end portion 11 being formed on the swash plate 1, the connecting end portion 11 being located between two extending end portions 21.
As shown in fig. 1 and 2, the swash plate 1 of the present embodiment includes an arc-shaped groove 111, and the arc-shaped groove 111 is formed on the connecting end portion 11.
As shown in fig. 1, the rotating body device of the present embodiment further includes a pin 4, and two ends of the pin 4 are respectively connected to the two extending end portions 21, wherein the pin 4 traverses the arc-shaped groove 111 and slides back and forth in the arc-shaped groove 111 to move the swash plate 1 in a direction approaching or departing from the rotating arm 2;
as shown in fig. 1, the main shaft 3 of the present embodiment includes a vent hole 31, the vent hole 31 is disposed in the main shaft 3 and two ends of the vent hole 31 penetrate through, wherein one end 311 of the vent hole 31 faces a matching portion of the pin 4 and the arc-shaped groove 111.
The pin shaft 4 is inserted into the arc-shaped groove 111 and connected with the swash plate 1, so that the installation is convenient. Meanwhile, the pin shaft 4 slides in the arc-shaped groove 111, so that the inclination angle of the swash plate 1 is changed, and the structure is simple. Wherein, the connecting end part 11 and the arc-shaped groove 111 are further hardened by quenching treatment, so as to improve the wear resistance of the connecting end part 11 and the arc-shaped groove 111 and prolong the service life of the variable displacement compressor.
Through the other end 312 injection oil at air vent 31 for oil will enter into between round pin axle 4 and the sloping cam plate 1 from the one end 311 of air vent 31, reduced the frictional resistance between arc wall 111 and the round pin axle 4, more stable when round pin axle 4 rotates on arc wall 111, further reduced the noise of swashplate variable displacement compressor, improved the flexible movement of swashplate variable displacement compressor, prolonged the life who becomes the displacement compressor.
As shown in fig. 1, the pin 4 of the present embodiment is axially restrained at the extended end portion 21 by a retainer ring 5. The pin shaft 4 can be quickly and conveniently mounted and dismounted through the retainer ring 5. Of course, in other embodiments, any connection method may be used to limit the movement of the pin 4 in the axial direction, so as to prevent the pin 4 from being disconnected in the axial direction.
As shown in fig. 1, the extension end portion 21 of the present embodiment is inclined with respect to the body of the boom 2 and extends obliquely toward the swash plate. Of course, in other embodiments, the extension end 21 may have other forms of extension.
As shown in fig. 1, the end surface of the connection end portion 11 facing the extension end portion 21 in the present embodiment is an arc surface. The circular arc surface ensures that the connecting end portion 11 does not interfere with the position between the extending end portions 21 of the rotating arm 2 during rotation.
As shown in fig. 1, a first limiting portion 22 protruding outward is provided on a side of the bottom of the swash plate 1 facing the swash plate 2, a second limiting portion 12 protruding outward is provided on a side of the swash plate 1 facing the swash plate 2, and the second limiting portion 12 abuts against the first limiting portion 22 when the swash plate 1 is at a maximum inclination angle. When the pressure in the crank cavity is equal to the pressure in the inner hole of the cylinder body, the pressure in the crank cavity is reduced and approaches the suction pressure of the suction cavity, at the moment, the swash plate 1 is kept at the position of the maximum inclination angle, and the second limiting part 12 on the swash plate 1 abuts against the first limiting part 22 on the rotating arm 2 to limit further inclination, so that the displacement of the variable displacement compressor is maximized, and the safety stability of the variable displacement compressor is improved.
As shown in fig. 1, the other end 312 of the vent hole 31 of the present embodiment faces the end of the spindle 3. In other embodiments, the other end 312 of the vent hole 31 may be disposed at another position of the main shaft 3 where the lubricant is conveniently added.
As shown in fig. 4, the swash plate 1 of the present embodiment is provided with a planetary plate 6 on one side thereof, and a bearing is provided between the planetary plate 6 and the swash plate 1. The planetary plate 6 is connected with a plurality of pistons 7, and the planetary plate 6 generates reciprocating swing along with the rotation of the swash plate 1, so that the pistons 7 are driven to reciprocate. Wherein the planetary plate 6 does not rotate along with the swashplate 1. The change in the inclination angle of the swash plate 1 affects the amplitude of the wobble of the planetary plate 6, thereby adjusting the distance of the reciprocation of the pistons 7.
As shown in fig. 1, the rotating arm 2 and the main shaft 3 of the present embodiment are connected by an elastic screw pin 8. In other embodiments, any alternative connection may be used to connect the boom 2 and the main shaft 3.
The embodiment also discloses a swing type variable displacement compressor which comprises the rotating body device.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. The utility model provides a rotator device for swing formula variable displacement compressor, includes main shaft, rocking arm and sloping cam plate, wherein, the rocking arm is connected on the main shaft, the sloping cam plate rotationally overlaps and is established on the main shaft, its characterized in that, rotator device still includes:
two extending end parts formed on the rotating arm, wherein the two extending end parts are arranged at intervals;
a connecting end portion formed on the swash plate, the connecting end portion being located between the two extending end portions;
an arcuate slot formed in said attachment end portion;
the two ends of the pin shaft are respectively connected with the two extending end parts, wherein the pin shaft traverses the arc-shaped groove and slides back and forth in the arc-shaped groove to enable the swash plate to move in a direction close to or far away from the rotating arm;
and the vent hole is arranged in the main shaft, two ends of the vent hole are communicated, and one end of the vent hole faces to the matching position of the pin shaft and the arc-shaped groove.
2. The rotator apparatus of claim 1, wherein the pin is axially retained at the extended end portion by a retainer ring.
3. The rotating body device of claim 1, wherein the extended end portion is inclined with respect to the body of the boom and extends obliquely toward the swash plate.
4. The rotating body device according to claim 1, wherein an end surface of the connection end portion on a side toward the extension end portion is a circular arc surface.
5. The rotating body device according to claim 1, wherein a side of the bottom portion of the rotating arm toward the swash plate is provided with a first regulating portion that protrudes outward, and a side of the swash plate toward the rotating arm is provided with a second regulating portion that protrudes outward, the second regulating portion abutting against the first regulating portion when the swash plate is at the maximum inclination angle.
6. The rotating body device according to claim 1, wherein the other end of the air vent is directed toward the end of the main shaft.
7. The rotating body device as claimed in claim 1, wherein a planetary disc is provided at one side of the swash plate, and a bearing is provided between the planetary disc and the swash plate.
8. The rotator apparatus of claim 7, wherein the planetary discs are connected to a plurality of pistons and reciprocate the pistons.
9. The rotator apparatus of claim 1, wherein the rotatable arm is connected to the main shaft by a resilient helical pin.
10. A rocking type variable displacement compressor, characterized by comprising a rotating body device as recited in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194814.4U CN212028005U (en) | 2019-12-03 | 2019-12-03 | Rotary body device and swing type variable displacement compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922194814.4U CN212028005U (en) | 2019-12-03 | 2019-12-03 | Rotary body device and swing type variable displacement compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212028005U true CN212028005U (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922194814.4U Active CN212028005U (en) | 2019-12-03 | 2019-12-03 | Rotary body device and swing type variable displacement compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212028005U (en) |
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2019
- 2019-12-03 CN CN201922194814.4U patent/CN212028005U/en active Active
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