Swash plate for variable displacement air compressor and variable displacement air compressor with swash plate

Abstract

The swash plate comprises a front shell and a rear shell, the inner wall of the front shell is movably connected with a connecting rod, the outer wall of the connecting rod is movably connected with the rear shell, the outer wall of the connecting rod is in threaded connection with a screw block, the outer wall of the screw block abuts against the rear shell, and the outer wall of the screw block abuts against the rear shell. A bearing is installed on the inner wall of the front shell, and the inner wall of the front shell is connected with a displacement mechanism. The two ends of the rear shell and the two ends of the front shell are tightened through the screw blocks at the two ends of the connecting rod, so that the rear shell and the front shell are fixedly installed, the extending end of the connecting rod of the front shell and the outer portion of an air cylinder shell in the variable displacement air compressor can be fixed in a threaded mode, the inclined disc can extrude a sliding rod on a ball, and air in an air cylinder is compressed; and only the connecting rod and the air cylinder need to be controlled to be connected and separated, the whole variable displacement air compressor does not need to be separated and disassembled, and maintenance is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of air compressor technology, and in particular to a swashplate for a variable displacement air compressor and a variable displacement air compressor having the swashplate. Background Technology

[0002] As drivers and passengers increasingly demand greater comfort from their vehicles, the installation of variable displacement compressor air conditioning systems has become an essential requirement. Consequently, the demand for variable displacement compressors is growing, making the overall assembly efficiency of these compressors a key factor affecting the overall efficiency of the vehicle.

[0003] For example, the swashplate for a variable displacement air compressor and a variable displacement air compressor with the swashplate disclosed in publication number "CN207892802U" solves the problem that existing swashplates for variable displacement compressors and variable displacement compressors with the swashplate can scratch the underside of the swashplate during installation, affecting the assembly efficiency of the variable displacement compressor. By using a swashplate for a variable displacement compressor and a variable displacement compressor with the swashplate, the operation of the swashplate during installation is simpler, the swashplate is less likely to be scratched, production efficiency is improved, and the defect rate of compressor assembly is reduced. Considering that in the existing compressor assembly, the swashplate is installed inside the variable displacement air compressor, and when the swashplate is worn and needs to be replaced, the entire variable displacement air compressor needs to be separated and disassembled, which is inconvenient for maintenance. Summary of the Invention

[0004] This invention aims to solve the problems existing in the prior art by providing a swashplate for a variable displacement air compressor and a variable displacement air compressor having the swashplate, eliminating the need for disassembly and reassembly of the entire variable displacement air compressor, thus making maintenance more convenient.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] Design a swash plate for a variable displacement air compressor and a variable displacement air compressor having the swash plate, including a front housing and a rear housing. The inner wall of the front housing is movably connected to a connecting rod, the outer wall of the connecting rod is movably connected to the rear housing, the outer wall of the connecting rod is threadedly connected to a screw block, the outer wall of the screw block abuts against the rear housing, a bearing is installed on the inner wall of the front housing, and a displacement mechanism is connected to the inner wall of the front housing.

[0007] In a further improvement, the displacement mechanism includes a slide rod, the outer wall of which is slidably connected to the front shell, one end of which is fixedly connected to the piston head, and the other end of which is threadedly connected to a ball, the outer wall of which is pressed against a spring.

[0008] Further improvements include a bearing whose inner wall is rotatably connected to the main shaft, and a swashplate mechanism connected to the outer wall of the main shaft.

[0009] In a further improvement, the swashplate mechanism includes a mounting cylinder, which is threadedly connected to the main shaft by bolts. The outer wall of the mounting cylinder is fixedly connected to the swashplate, and the surface of the swashplate is machined with grooves.

[0010] Further improvements include a sliding connection between the outer wall of the groove and the sphere.

[0011] Further improvements include a spring end fixedly connected to a spiral strip, and the inner wall of the spiral strip fixedly connected to a slide rod.

[0012] To further improve the design, the front housing is connected to the spiral strip via bolts.

[0013] The beneficial effects of this utility model are as follows: This utility model tightens the two ends of the rear and front housings by using the screw blocks at both ends of the connecting rod, thereby fixing the rear and front housings together. The extended end of the connecting rod of the front housing can be threaded and fixed to the outside of the cylinder housing in the variable displacement air compressor. The inclined plate will squeeze the sliding rod on the ball to compress the air in the cylinder. Only the connection and disconnection between the connecting rod and the cylinder need to be controlled, without the need to separate and disassemble the entire variable displacement air compressor, making maintenance more convenient. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 for Figure 1 A frontal sectional view;

[0016] Figure 3 for Figure 2 A three-dimensional enlarged schematic diagram of the swashplate mechanism;

[0017] Figure 4 for Figure 2 Enlarged sectional view of part A in the middle:

[0018] Figure 5 for Figure 2 Enlarged sectional view of section B:

[0019] Figure 6 for Figure 2 Enlarged sectional view of the central-return type strip.

[0020] Explanation of reference numerals in the attached drawings: 1. Front housing, 2. Rear housing, 3. Connecting rod, 4. Screw block, 5. Bearing, 6. Displacement mechanism, 601. Slide rod, 602. Piston head, 603. Ball, 604. Spring, 7. Main shaft, 8. Swashplate mechanism, 801. Mounting cylinder, 802. Swashplate, 803. Slide groove, 9. Recurve strip. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Example 1:

[0023] See attached document Figure 1-6 In this embodiment, a swash plate for a variable displacement air compressor and a variable displacement air compressor having the swash plate are provided, including a front housing 1 and a rear housing 2. The inner wall of the front housing 1 is movably connected to a connecting rod 3, the outer wall of the connecting rod 3 is movably connected to the rear housing 2, the outer wall of the connecting rod 3 is threadedly connected to a screw block 4, the outer wall of the screw block 4 abuts against the rear housing 2, a bearing 5 is installed on the inner wall of the front housing 1, and a displacement mechanism 6 is connected to the inner wall of the front housing 1.

[0024] The displacement mechanism 6 includes a slide rod 601. The slide rod 601 on the ball 603 is squeezed by the inclined plate 802, so that the piston head 602 at the end of the slide rod 601 moves in the cylinder of the variable displacement air compressor. The outer wall of the slide rod 601 is slidably connected to the front shell 1. The end of the slide rod 601 is fixedly connected to the piston head 602. The other end of the slide rod 601 is threadedly connected to the ball 603. The outer wall of the ball 601 is pressed against the spring 604.

[0025] The screw blocks 4 at both ends of the connecting rod 3 tighten the ends of the rear shell 2 and the front shell 1, so that the rear shell 2 and the front shell 1 are fixed together. The extended end of the connecting rod 3 of the front shell 1 can be threaded to the outside of the cylinder shell in the variable displacement air compressor. The inclined plate 802 will squeeze the slide rod 601 on the ball 603 to compress the air in the cylinder. Only the connection and disconnection between the connecting rod 3 and the cylinder need to be controlled. There is no need to separate and disassemble the entire variable displacement air compressor, which makes maintenance more convenient.

[0026] The inner wall of the bearing 5 is rotatably connected to the main shaft 7. The outer wall of the main shaft 7 is connected to the swashplate mechanism 8. The swashplate mechanism 8 includes a mounting cylinder 801. The mounting cylinder 801 is threadedly connected to the main shaft 7 by bolts. The outer wall of the mounting cylinder 801 is fixedly connected to the swashplate 802. The surface of the swashplate 802 is machined with a groove 803.

[0027] The outer wall of the slide groove 803 is slidably connected to the ball 601, the end of the spring 604 is fixedly connected to the spiral strip 9, the inner wall of the spiral strip 9 is fixedly connected to the slide rod 601, and the front shell 1 is threadedly connected to the spiral strip 9 by bolts.

[0028] Working principle:

[0029] First, external bolts are used to fix the front housing 1 and the U-shaped strip 9. At the same time, the main shaft 7 is passed through the bearing 5 on the front housing 1, and the mounting sleeve 801 on the slant plate 802 is passed through the main shaft 7. Multiple external bolts are threaded through the mounting sleeve 801 and the main shaft 7 for fixation. Meanwhile, the slide rod 601 is passed through the front housing 1, the U-shaped strip 9 and the spring 604. The ball 603 is then threaded into the end of the slide rod 601. The rear housing 2 is then connected to the front housing 1. The connecting rod 3 is passed through the rear housing 2 and the front housing 1. The screw blocks 4 are screwed into both ends of the connecting rod 3 to connect the rear housing 2 and the front housing 1. The screw blocks 4 at both ends of the connecting rod 3 tighten the ends of the rear housing 2 and the front housing 1, so that the rear housing 2 and the front housing 1 are installed and fixed. Finally, the extended end of the connecting rod 3 of the front housing 1 is threaded to the outside of the cylinder housing in the variable displacement air compressor, so that the piston head 602 is inserted into the cylinder.

[0030] The inclined plate 802 on the mounting cylinder 801 is rotated by an external output device (motor). The sliding groove 803 on the inclined plate 802 slides with the ball 603. When the distance between the upper end of the inclined plate 802 and the ball 603 becomes closer, the inclined plate 802 will squeeze the sliding rod 601 on the ball 603, so that the piston head 602 at the end of the sliding rod 601 changes the internal working volume in the cylinder of the variable displacement air compressor, thereby compressing the air in the cylinder. At the same time, when the distance between the lower end of the inclined plate 802 and the ball 603 becomes farther, the spring 604 will also apply a reverse force to the ball 603, which can control the piston head 602 at the end of the sliding rod 601 to retract, so that the piston head 602 at the end of the sliding rod 601 works repeatedly in the cylinder.

[0031] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A swash plate for a variable displacement air compressor and a variable displacement air compressor having the same, comprising a front case (1) and a rear case (2), characterized in that: The inner wall of the front shell (1) is movably connected with a connecting rod (3), the outer wall of the connecting rod (3) is movably connected with a rear shell (2), the outer wall of the connecting rod (3) is threadedly connected with a screw block (4), the outer wall of the screw block (4) is tightly abutted with the rear shell (2), the inner wall of the front shell (1) is provided with a bearing (5), and the inner wall of the front shell (1) is connected with a displacement mechanism (6).

2. The swash plate for a variable displacement air compressor and a variable displacement air compressor having the same according to claim 1, characterized in that: The displacement mechanism (6) comprises a sliding rod (601), the outer wall of the sliding rod (601) is slidably connected with the front shell (1), one end of the sliding rod (601) is fixedly connected with a piston head (602), and the other end of the sliding rod (601) is threadedly connected with a spherical ball (603), the outer wall of the spherical ball (603) is tightly abutted with a spring (604).

3. The swash plate for a variable displacement air compressor and a variable displacement air compressor having the same according to claim 1, characterized in that: The inner wall of the bearing (5) is rotatably connected with a main shaft (7), and the outer wall of the main shaft (7) is connected with a swash plate mechanism (8).

4. The swash plate for a variable displacement air compressor and a variable displacement air compressor having the same according to claim 3, characterized in that: The swash plate mechanism (8) comprises a mounting cylinder (801), the mounting cylinder (801) is threadedly connected with the main shaft (7) through bolts, the outer wall of the mounting cylinder (801) is fixedly connected with a swash plate (802), and the surface of the swash plate (802) is processed with a sliding groove (803).

5. The swash plate for a variable displacement air compressor and a variable displacement air compressor having the same according to claim 4, characterized in that: The outer wall of the sliding groove (803) is slidably connected with the spherical ball (603).

6. The swash plate for a variable displacement air compressor and a variable displacement air compressor having the same according to claim 2, characterized in that: The end of the spring (604) is fixedly connected with a back-shaped strip (9), and the inner wall of the back-shaped strip (9) is fixedly connected with the sliding rod (601).

7. The swash plate for a variable displacement air compressor and a variable displacement air compressor having the same according to claim 1, characterized in that: The front shell (1) is threadedly connected with the back-shaped strip (9) through bolts.

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