Main shaft swash plate of variable displacement compressor

Abstract

A variable displacement compressor main shaft swash plate comprises a main shaft and a rotating arm, the main shaft is in threaded connection with the rotating arm through a bolt, the outer wall of the rotating arm is rotationally connected with a first connecting pin, the outer wall of the first connecting pin is rotationally connected with a connecting plate, the inner wall of the connecting plate is rotationally connected with a second connecting pin, and the outer wall of the rotating arm is connected with a protection mechanism. An external bolt penetrates through the connecting ring to be fixed to the rotating arm in a threaded mode, so that the telescopic sleeve made of rubber is installed on the rotating arm, the rotating arm and the telescopic sleeve are pushed into the main shaft from the end, the outer wall of the reset spring is wrapped by the telescopic sleeve, and the telescopic sleeve plays a role in protecting the exterior of the reset spring; the reset spring can be isolated from high-humidity or corrosive substances, and noise possibly generated by friction or vibration during compression or extension is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a compressor technical field especially relates to a variable displacement compressor main shaft swash plate. BACKGROUND

[0002] Swash plate type compressor also is called swash plate type compressor, it is a kind of axial reciprocating piston compressor, rely on with the rotation of shaft certain inclination swash plate rotation movement drive piston or piston rod reciprocating movement to realize gas compression. Because it light weight, easy to install in narrow engine, stroke distance short etc. Advantage, it is the most widely used in current automobile air conditioner compressor.

[0003] For example the utility model discloses a kind of variable displacement compressor main shaft swash plate of "CN205401049U", although it solves the existing variable displacement compressor main shaft swash plate, swash plate seat shaft hole and main shaft between friction force is generated during reset process, swash plate seat right side to main shaft snap ring side impact larger problem, reset spring one and reset spring two have buffering effect to swash plate reset, it can reduce the impact effect of swash plate reset to main shaft axial, to reduce the energy consumption of variable displacement compressor, reduce the working noise of variable displacement compressor under each working condition conversion, increase the working life of main shaft swash plate, increase the service life of variable displacement compressor, considering the existing variable displacement compressor main shaft swash plate, considering the reset spring in the existing variable displacement compressor main shaft swash plate passes through main shaft and swash plate mutual cooperation work, reset spring is in all exposed effect, reset spring is contacted with high humidity or corrosive substance influence life, and when compression or stretch, noise can be generated due to friction or vibration. SUMMARY

[0004] The utility model solves the above-mentioned prior art problems, provides a kind of variable displacement compressor main shaft swash plate, the effect of wrapping reset spring, insulate reset spring from contacting high humidity or corrosive substance, and reduce the noise that can be generated due to friction or vibration when compression or stretch.

[0005] The utility model solves the technical scheme that its technical problem adopts:

[0006] Design a kind of variable displacement compressor main shaft swash plate, including main shaft and rotary arm, the main shaft is connected by bolt with rotary arm screw thread, the outer wall of the rotary arm is connected with first connecting pin rotation, the outer wall of the first connecting pin is connected with connecting plate rotation, the inner wall of the connecting plate is connected with second connecting pin rotation, the outer wall of the rotary arm is connected with protection mechanism.

[0007] Further improvement, the protection mechanism includes connecting ring, the connecting ring is connected by bolt with rotary arm screw thread, the outer wall of the connecting ring is fixedly connected with telescopic sleeve, the outer wall of the telescopic sleeve is fixedly connected with oblique ring.

[0008] Further improvement, the inner wall of the rotating arm is connected with a circular groove, and the outer wall of the circular groove is connected with a reset mechanism.

[0009] Further improvement, the reset mechanism comprises a reset spring, the end of the reset spring is fixedly connected with the circular groove, the end of the reset spring is fixedly connected with an inclined disc, and the inner wall of the inclined disc is fixedly connected with a circular block.

[0010] Further improvement, the outer wall of the circular block is fixedly connected with the main shaft.

[0011] Further improvement, the outer wall of the second connecting pin is rotationally connected with the inclined disc, and the surface of the inclined disc is plated with a tin layer.

[0012] Further improvement, the outer wall of the main shaft is fixedly connected with a main shaft clasp.

[0013] The utility model has the advantages that: the utility model, through adopting that external bolt passes through connecting ring and is fixed with rotating arm thread, makes the telescopic sleeve of rubber material install to rotating arm, pushes into the main shaft from the end with rotating arm and telescopic sleeve, makes the telescopic sleeve wrap the outer wall of reset spring, and the telescopic sleeve has the protection effect to the outer wall of reset spring, can play the effect of isolating reset spring from high humidity or corrosive substance, and reduces the noise that may be produced because of friction or vibration when compressing or stretching. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional schematic view of the utility model;

[0015] Figure 2 It is the front view of the utility model; Figure 1

[0016] Figure 3 It is the inclined disc three-dimensional enlarged schematic view of the utility model; Figure 1

[0017] Figure 4 It is the enlarged sectional view of A part in the utility model; Figure 2

[0018] Figure 5 It is the enlarged sectional view of B part in the utility model; Figure 3

[0019] Figure 6 It is the enlarged sectional view of C part in the utility model. Figure 1

[0020] ​​​​​Explanation of reference signs: in the drawing: 1, main shaft, 2, rotating arm, 3, first connecting pin, 4, connecting plate, 5, second connecting pin, 6, protection mechanism, 601, connecting ring, 602, telescopic sleeve, 603, oblique ring, 7, circular groove, 8, reset mechanism, 801, reset spring, 802, inclined disc, 803, circular block, 9, tin layer, 10, main shaft snap ring. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings:

[0022] Example 1:

[0023] Refer to the drawings Figures 1-6 In this embodiment, a variable displacement compressor main shaft swash plate, comprising main shaft 1 and rotating arm 2, main shaft 1 is connected through bolt with rotating arm 2 screw connection, the outer wall of rotating arm 2 is rotationally connected with first connecting pin 3, the outer wall of first connecting pin 3 is rotationally connected with connecting plate 4, the inner wall of connecting plate 4 is rotationally connected with second connecting pin 5, the outer wall of rotating arm 2 is connected with protection mechanism 6.

[0024] Protection mechanism 6 includes connecting ring 601, and the outer wall of reset spring 8 is wrapped by telescopic sleeve 602, so that the telescopic sleeve 602 plays a protective role on the outside of reset spring 8, the connecting ring 601 is connected with rotating arm 2 through bolt and screw connection, the outer wall of connecting ring 601 is fixedly connected with telescopic sleeve 602, and the outer wall of telescopic sleeve 602 is fixedly connected with oblique ring 603.

[0025] External bolt is used to pass through connecting ring 601 and be fixed with rotating arm 2 by screwing, so that the telescopic sleeve 602 made of rubber is installed on rotating arm 2, rotating arm 2 and telescopic sleeve 602 are pushed into main shaft 1 from the end, the outer wall of reset spring 8 is wrapped by telescopic sleeve 602, the telescopic sleeve 602 plays a protective effect on the outside of reset spring 8, can isolate reset spring 8 from contacting high humidity or corrosive substances, and can reduce noise that may be generated due to friction or vibration during compression or stretching.

[0026] The inner wall of rotating arm 2 is connected with circular groove 7, the outer wall of circular groove 7 is connected with reset mechanism 8, the reset mechanism 8 is stretched and contracted by reset spring 8 to reset the oblique disc 802 on the main shaft 1, which has a buffering effect, can reduce the impact of the reset oblique disc 802 on the main shaft 1 in the axial direction, and the reset mechanism 8 includes reset spring 801, the end of reset spring 801 is fixedly connected with circular groove 7, the end of reset spring 801 is fixedly connected with oblique disc 802, and the inner wall of oblique disc 802 is fixedly connected with circular block 803.

[0027] The outer wall of circular block 803 is fixedly connected with main shaft 1, the outer wall of second connecting pin 5 is rotationally connected with oblique disc 802, the surface of oblique disc 802 is plated with tin layer 9, and the outer wall of main shaft 1 is fixedly connected with main shaft snap ring 10.

[0028] Working principle:

[0029] Assembly stage

[0030] First, the oblique ring 603 is pushed into the main shaft 1, and the reset spring 8 is pushed into the main shaft 1, and the external bolt is threaded through the connecting ring 601 and the swing arm 2 in advance, and the rubber telescopic sleeve 602 is installed on the swing arm 2, then the swing arm 2 and the telescopic sleeve 602 are pushed into the main shaft 1 from the end, the telescopic sleeve 602 wraps the outer wall of the reset spring 8, so that the telescopic sleeve 602 protects the outside of the reset spring 8, when the circular block 803 on the inclined disc 802 is pushed by the right end of the main shaft 1 under the action of the external force component, the circular block 803 will slide on the main shaft 1, and the reset spring 8 is stretched to reset the inclined disc 802 on the main shaft 1, which has a buffering effect, can reduce the impact of the inclined disc 802 on the main shaft 1, thereby reducing the energy consumption of the variable displacement compressor, reducing the working noise of the variable displacement compressor under various working conditions, increasing the working life of the main shaft inclined disc, increasing the service life of the variable displacement compressor, using the connecting plate 4 The two ends of the connecting plate 4 are respectively connected with the first connecting plate pin 3 and the second connecting pin 5, and the swing arm 2 and the inclined disc 802 are in a rotating relationship, when subjected to external thrust, the connecting plate 4 and the first connecting plate pin 3 and the second connecting pin 5 are deflected, so that the connecting plate 4 and the first connecting plate pin 3 and the second connecting pin 5 can reduce the transmission friction between the main shaft 1 and the inclined disc 802, reduce the working noise of the variable displacement compressor, improve the working efficiency of the variable displacement compressor, and the tin layer 9 plated on the surface of the inclined disc 802 can ensure the flatness and parallelism of the inclined disc 802, can reduce the production cost, can increase the wear-resistant use effect of the inclined disc 802.

[0031] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A variable displacement compressor swash plate comprising a main shaft (1) and a swash plate (2), the main shaft (1) being threadedly connected to the swash plate (2) by a bolt, characterized in that: The outer wall of the rotating arm (2) is rotationally connected with the first connecting pin (3), the outer wall of the first connecting pin (3) is rotationally connected with the connecting plate (4), the inner wall of the connecting plate (4) is rotationally connected with the second connecting pin (5), and the outer wall of the rotating arm (2) is connected with the protection mechanism (6).

2. The variable displacement compressor crankshaft swash plate of claim 1, wherein: The protection mechanism (6) comprises a connecting ring (601), the connecting ring (601) is threadedly connected with the rotating arm (2) through bolts, the outer wall of the connecting ring (601) is fixedly connected with the telescopic sleeve (602), and the outer wall of the telescopic sleeve (602) is fixedly connected with the inclined ring (603).

3. The variable displacement compressor crankshaft swash plate of claim 2, wherein: The inner wall of the rotating arm (2) is connected with the circular groove (7), and the outer wall of the circular groove (7) is connected with the reset mechanism (8).

4. The variable displacement compressor crankshaft swash plate of claim 3, wherein: The reset mechanism (8) comprises a reset spring (801), the end of the reset spring (801) is fixedly connected with the circular groove (7), the end of the reset spring (801) is fixedly connected with the swash plate (802), and the inner wall of the swash plate (802) is fixedly connected with the circular block (803).

5. The variable displacement compressor crankshaft swash plate of claim 4, wherein: The outer wall of the circular block (803) is fixedly connected with the main shaft (1).

6. The variable displacement compressor crankshaft swash plate of claim 5, wherein: The outer wall of the second connecting pin (5) is rotationally connected with the swash plate (802), and the surface of the swash plate (802) is plated with a tin layer (9).

7. The variable displacement compressor crankshaft swash plate of claim 4, wherein: The outer wall of the main shaft (1) is fixedly connected with the main shaft clasp (10).

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