Synchronous constraint crank pin anti-rotation structure of compressor

Abstract

The utility model discloses a compressor synchronous constraint crank pin anti-rotation structure which comprises a synchronous ring and an eccentric sleeve, the synchronous ring is arranged between a movable disc and a rear cover of a compressor, the outer edge of the synchronous ring is provided with limiting parts with the same number as crank pins, and the limiting parts are provided with through holes for the crank pins to penetrate through. The eccentric sleeve is eccentrically provided with a positioning hole used for positioning and installing the crankshaft, the eccentric sleeve is installed at the positions, relative to the crankshaft, of a static disc, a movable disc and a rear cover of the compressor in a matched mode, the structure plays a role in synchronously restraining the crank pins, the multiple crank pins are kept synchronous when rotating, and the phenomenon that the crank pins, the movable disc and the rear cover are clamped when the movable disc moves is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressors, and in particular relates to a compressor synchronous restraint crank pin anti-rotation structure. Background Art

[0002] The compressor is a common device for compressing gas, which mainly includes a moving plate, a stationary plate, a driving crankshaft, a crankpin and a housing. The driving crankshaft rotates to drive the crankshaft sleeve to drive the moving plate to revolve around the eccentricity of the eccentric shaft, and the moving plate drives the crankpin to rotate. Figure 1 When the three crank pins are not restrained from rotating at the same time, they will be out of sync, causing the moving plate to get stuck and affecting the normal operation of the compressor. Utility Model Content

[0003] The purpose of the present invention is to solve at least one problem of the prior art and to provide a compressor synchronously restraining crank pin anti-rotation structure.

[0004] To achieve the above-mentioned purpose, the present invention proposes a compressor synchronous constraint crankpin anti-rotation structure, including a synchronizer ring and an eccentric sleeve. The synchronizer ring is arranged between the movable plate and the rear cover of the compressor. The outer edge of the synchronizer ring is provided with a limiting portion with the same number as the crank pins. The limiting portion is provided with a through hole for the crank pins to pass through. The eccentric sleeve is eccentrically provided with a positioning hole for positioning and installing the crankshaft. The eccentric sleeve is installed on the stator plate, movable plate and rear cover of the compressor relative to the crankshaft.

[0005] Preferably, the number of the limiting portions is 3, and a line connecting the centers of the three limiting portions is in the shape of an equilateral triangle.

[0006] Preferably, a passage for the driving crankshaft of the compressor to pass through is provided inside the synchronizer ring.

[0007] Preferably, bearings are provided between the eccentric sleeve and the stator plate of the compressor, between the rotor plate and the rear cover, and between the crank pin and the limiting portion.

[0008] The beneficial effects of the present invention are as follows: the present invention adds a synchronization ring with a limiting portion between the movable plate and the rear cover, the limiting portion is provided with a through hole for the crank pin to pass through, and an eccentric sleeve is provided on the static plate, movable plate and rear cover of the compressor at a position relative to the crank shaft. The synchronization ring and the eccentric sleeve can play a synchronous restraining role on the crank pin, so that multiple crank pins keep synchronization when rotating, and prevent the crank pin, movable plate and rear cover from being stuck when the movable plate moves.

[0009] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a schematic diagram of the existing compressor structure.

[0011] Figure 2 This is a schematic diagram of the installation of a synchronizer ring according to an embodiment of the present invention.

[0012] Figure 3 This is a schematic diagram of the compressor disassembly of an embodiment of the present utility model.

[0013] Figure 4 It is a front sectional view of the compressor of an embodiment of the present utility model.

[0014] In the figure: 1-synchronizing ring, 2-eccentric sleeve, 3-crank pin, 4-moving plate, 5-static plate, 6-driving crankshaft, 7-rear cover, 11-limiting part, 41-crankshaft sleeve. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "inside" and "outside" is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0016] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0017] The present invention will be described in detail below with reference to the accompanying drawings.

[0018] See Figure 2 、 Figure 3 and Figure 4This embodiment provides a compressor synchronous constraint crankpin anti-rotation structure, including a synchronizer ring 1 and an eccentric sleeve 2. The synchronizer ring 1 is arranged between the movable plate 4 and the rear cover 7 of the compressor. The outer edge of the synchronizer ring 1 is provided with a limit portion 11 with the same number as the crankpin 3. The limit portion 11 is provided with a through hole for the crankpin 3 to pass through. The eccentric sleeve 2 is eccentrically provided with a positioning hole for positioning and installing the crankshaft 3. The eccentric sleeve 2 is cooperatively installed on the stator plate 5, the movable plate 4 and the rear cover 7 of the compressor relative to the crankshaft 3. The synchronizer ring 1 is installed on the side of the movable plate 4 close to the rear cover 7.

[0019] In this embodiment, the number of the limiting portions 11 is three, and a line connecting the centers of the three limiting portions 11 forms an equilateral triangle shape.

[0020] In this embodiment, a passage is defined inside the synchronizer ring 1 for the driving crankshaft 6 of the compressor to pass through.

[0021] In this embodiment, refer to Figure 4 Bearings are provided between the eccentric sleeve 2 and the compressor's stator plate 5, between the movable plate 4 and the rear cover 7, and between the crank pin 3 and the limiting portion 11, to further ensure that the eccentric sleeve 2 can rotate synchronously with the crank pin 3, reduce friction, and reduce noise generated during rotation.

[0022] Working process of this utility model:

[0023] During the operation of the compressor synchronous crankpin anti-rotation structure, the active crankshaft 6 rotates, driving the crankshaft sleeve 41 to rotate, thereby driving the dynamic plate 4 to rotate. After the dynamic plate 4 rotates, it drives the three crankpins 3 to rotate synchronously through the synchronizer ring 1. The rotation of the crankpins 3 drives the eccentric sleeve 2 to rotate. In this structure, the three crankpins 3 rotate in the same direction, and the center line of the three crankpins 3 forms a triangle. By fixing this triangular relationship through the synchronizer ring 1 and the eccentric sleeve 2, the three crankpins 3 can be constrained to work synchronously.

[0024] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the scope of protection of the present invention.

Claims

1. A compressor synchronous restraint crankpin anti-rotation structure, characterized by: It includes a synchronizer ring and an eccentric sleeve. The synchronizer ring is arranged between the movable plate and the rear cover of the compressor. The outer edge of the synchronizer ring is provided with a limit portion with the same number as the crank pins. The limit portion is provided with a through hole for the crank pins to pass through. The eccentric sleeve is eccentrically provided with a positioning hole for positioning and installing the crankshaft. The eccentric sleeve is installed on the stator plate, movable plate and rear cover of the compressor relative to the crankshaft.

2. The compressor synchronous restraint crankpin anti-rotation structure according to claim 1, characterized in that: The number of the limiting parts is 3, and the center line connecting the three limiting parts is in the shape of an equilateral triangle.

3. The compressor synchronous restraint crankpin anti-rotation structure according to claim 1, characterized in that: A passage for the driving crankshaft of the compressor to pass through is provided inside the synchronizer ring.

4. The compressor synchronous restraint crankpin anti-rotation structure according to claim 1, characterized in that: Bearings are provided between the eccentric sleeve and the stator plate of the compressor, between the movable plate and the rear cover, and between the crank pin and the limiting part.

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