CN-122014622-A - Roller sliding vane assembly and compressor

Abstract

The invention provides a roller sliding vane assembly and a compressor, relates to the technical field of compressors, and solves the technical problem that the abrasion of a sliding vane head and a roller groove is large under a high-pressure working condition in the prior art. The roller sliding vane assembly and the compressor comprise a roller, a sliding vane movably connected to one side of the roller, a hinge groove arranged on the roller, a hinge head arranged on the sliding vane and nested in the hinge groove, and a flexible structure arranged on at least one of the hinge head and the hinge groove and arranged at a contact position when the hinge head and the hinge groove relatively move. The invention is used for providing the roller sliding vane assembly and the compressor, which are used for improving the contact stress distribution, reducing the abrasion between the sliding vane and the roller and prolonging the service life of parts.

Inventors

• CHENG JIANGUO
• WANG YONG
• DING XUECHAO

Assignees

• 珠海凌达压缩机有限公司

Dates

Publication Date

20260512

Application Date

20260402

Claims (10)

1. 1. A roller slide assembly, comprising: A roller; the sliding sheet is movably connected to one side of the roller; the roller is provided with a hinge groove, the sliding sheet is provided with a hinge head, and the hinge head is nested in the hinge groove; At least one of the hinge head and the hinge groove is provided with a flexible structure, and the flexible structure is arranged at a contact position when the hinge head and the hinge groove relatively move.
2. 2. The roller slide assembly of claim 1, wherein the flexible structure is a flexible slot.
3. 3. The roller slide assembly of claim 1, wherein the flexible structure is a single arm cavity structure.
4. 4. A roller slide assembly as claimed in claim 3 wherein a resilient material filler layer is disposed within the single wall cavity.
5. 5. The roller slide assembly of claim 4, wherein the filler layer is polyurethane, silicone rubber, or a specialty elastomeric alloy.
6. 6. The roller slide assembly of claim 1, wherein the flexible structure is a corrugated resilient metal sheet or a resilient gasket.
7. 7. The roller slide assembly of claim 2 wherein the length of the flexible slot is 1/6-5/6 of the length of the hinge pair of the hinge head and the hinge groove and/or the width of the flexible slot is 0.1-1.6mm.
8. 8. The roller slide assembly of any one of claims 1-7 wherein the flexible structure is in a spiral progressive curve profile, the progressive curve satisfying r = a + b x θ, where r is the polar diameter, a is a constant, b is the pitch, θ is the polar angle.
9. 9. The roller slide assembly of claim 8 wherein θ is 145 ° -270 °, a > r1, r1 is the inside diameter of the hinge head and hinge groove, and b is 0.3-1.5.
10. 10. A compressor comprising a roller slide assembly as claimed in any one of claims 1 to 9.

Description

Roller sliding vane assembly and compressor Technical Field The invention relates to the technical field of compressors, in particular to a roller sliding vane assembly and a compressor. Background In various transmission devices such as a swing rotor type compressor, a hinge structure between a sliding vane and a roller is a core component for realizing power transmission and ensuring normal operation of equipment, and the operational stability and the service life of the equipment are directly determined by the structural rationality of the hinge structure. In traditional hinge structure design, in the gleitbretter head embedding roller hinge groove, the two mainly realizes the cooperation through slip or swing mode, and when the compressor operation was in high pressure operating mode, the gleitbretter received the effect of high pressure gas, can produce great extrusion force to the roller direction, and then leads to gleitbretter head and roller groove contact area to produce too high contact stress. Under the working condition for a long time, the contact surface of the sliding vane and the roller is easy to wear and fatigue deformation, and fracture failure can occur when serious, so that the service cycle of equipment can be shortened, and potential safety hazards such as equipment shutdown and leakage can be possibly caused, thereby influencing the overall operation reliability. At present, in the prior art, a rigid design thought is adopted for the hinge structure of the sliding vane and the roller, an effective buffering and force unloading mechanism is not arranged, and impact force generated in a high-pressure area cannot be effectively relieved, so that the problems of overlarge contact stress and abrasion between the sliding vane and the roller are difficult to fundamentally solve. In order to improve the above-mentioned partial defects, some improvements have been proposed in the related art, wherein reference 1 discloses a pump body assembly, in which an annular groove is disposed around the periphery of a roller, a clamping portion is disposed on the end face of a slide sheet contacting the roller, the clamping portion is movably embedded in the annular groove, and sliding fit of the slide sheet and the roller in the circumferential direction and stop contact in the radial direction are realized by matching the clamping portion with the annular groove. Although the structure can effectively avoid the sliding vane from separating from the roller, and simultaneously increase the volume of the compression space and the displacement of the compressor on the premise of not changing the size of the part, the structure is not optimized for the problem of contact stress under the high-pressure working condition, and the hidden danger of abrasion of the sliding vane and the roller can not be solved. The reference 2 discloses a roller sliding vane assembly, wherein one of the sliding vane and the roller is provided with a hooking structure, and the other is provided with a hooking matching structure, so that the sliding vane and the roller are mutually meshed in a point contact mode to realize hooking connection. Compared with the traditional mode that the head of the sliding vane is abutted against the outer circle of the roller, the structure improves the operation following reliability, can effectively avoid separation of the two, improves low-frequency noise and vibration, reduces friction power consumption through point contact design, has certain advantages in the aspect of energy efficiency improvement, but the structure is not provided with a buffer mechanism, cannot relieve impact force generated in a high-pressure area, and still cannot solve the abrasion problem caused by overlarge contact stress under the high-pressure working condition. To sum up, the existing sliding vane and roller hinge structure and related improvement schemes cannot effectively solve the problems of contact stress and wear in high-pressure environments, and therefore, a hinge structure capable of effectively buffering the impact force of the sliding vane head and optimizing the contact stress distribution under high-pressure working conditions, thereby reducing the abrasion of components and prolonging the service life of equipment is needed. Disclosure of Invention The invention aims to provide a roller sliding vane assembly and a compressor, which are used for solving the technical problem that the abrasion of the sliding vane head and the roller groove is large under a high-pressure working condition in the prior art. The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below. In order to achieve the above purpose, the present invention provides the following technical solutions: the invention provides a roller sliding vane assembly, comprising: A roller; the sliding sheet is movably connected to one side of the roll