阅读说明：本技术 一种转子压缩机用可减小泄漏的配套气缸 (Leakage-reducing matched cylinder for rotor compressor ) 是由 戴竟雄 李华军 王永昌 陈刚 饶学华 夏维平 于 2019-07-29 设计创作，主要内容包括：本发明公开了一种转子压缩机用可减小泄漏的配套气缸,包括气缸本体,在气缸本体上设有气缸孔及径向设置的滑块槽,其特征在于：在气缸本体上位于滑块槽的前端设有用于与滑片相配合的防形槽,所述防形槽位于滑块槽与气缸孔的交界处,所述防形槽为相对滑块槽的中心线对称设置并向滑块槽方向内凹而成。当滚动转子运行到滑片槽中心位置时,滑片可完全嵌入气缸防形槽内。可以将气体全部排出,不存在余隙,增加了排气量,从而可提升压缩机效率。(The invention discloses a matched cylinder capable of reducing leakage for a rotor compressor, which comprises a cylinder body, wherein a cylinder hole and a radial sliding block groove are arranged on the cylinder body, and the matched cylinder is characterized in that: the front end of the sliding block groove on the cylinder body is provided with a preventing groove matched with the sliding block, the preventing groove is located at the junction of the sliding block groove and the cylinder hole, and the preventing groove is symmetrically arranged relative to the center line of the sliding block groove and is formed by inwards recessing towards the sliding block groove. When the rolling rotor moves to the center of the slide sheet groove, the slide sheet can be completely embedded into the cylinder anti-groove. The gas can be completely discharged without clearance, and the displacement is increased, so that the efficiency of the compressor can be improved.)

1. The utility model provides a rotor compressor is with supporting cylinder that can reduce leakage, includes the cylinder body, is equipped with the slider groove of cylinder hole and radial setting on the cylinder body, its characterized in that: the front end of the sliding block groove on the cylinder body is provided with a preventing groove matched with the sliding block, the preventing groove is located at the junction of the sliding block groove and the cylinder hole, and the preventing groove is symmetrically arranged relative to the center line of the sliding block groove and is formed by inwards recessing towards the sliding block groove.

2. The matched cylinder capable of reducing leakage for rotor compressor according to claim 1, characterized in that: the anti-form groove comprises a first surface and a first side surface, wherein the first surface and the first side surface are symmetrically arranged at the front ends of two sides of the sliding block groove on the cylinder body, the first surface is an arc-shaped curved surface, and the first side surface is respectively connected with the inner surface and the first surface of the cylinder hole.

3. The matched cylinder capable of reducing leakage for rotor compressor according to claim 2, characterized in that: the first surface is arranged to extend in a circumferential direction relative to the inner surface of the cylinder.

4. The cylinder kit for a rotor compressor according to claim 1 or 2, wherein the leakage is reduced by: and a gap of 0.05-0.2 mm exists between the slide sheet and the anti-groove.

5. The cylinder kit for a rotor compressor according to claim 1 or 2, wherein the leakage is reduced by: the width of the anti-slot is larger than that of the slider slot, and the anti-slot and the slider slot form a T-shaped structure.

Technical Field

The invention relates to the technical field of rolling rotor compressors, in particular to a matched cylinder capable of reducing leakage for a rotor compressor.

Background

The rolling rotor compressor belongs to the field of positive displacement compressor. The rolling rotor compressor comprises a cylinder, an eccentric rotor, a sliding block and a cylinder end cover. Wherein the eccentric rotor rolls on the inner circumferential surface of the cylinder. The existing slide block adopts a metal integral structure, the slide sheet moves along the radial direction of the rotor in a reciprocating way, and the slide sheet is always in line contact with the outer circumference of the eccentric rotor. The inner circumference of the cylinder, the two cylinder end covers and the eccentric rotor enclose a closed cavity, and the position of the closed cavity changes along with the rotation of the rotor. The slide divides the closed cavity into a low pressure chamber and a high pressure chamber. An air inlet and an air outlet are formed in the air cylinder, the low-pressure cavity is communicated with the air inlet, and the high-pressure cavity is communicated with the air outlet.

However, in the rolling rotor compressor, a pressure difference exists between the high pressure chamber and the low pressure chamber during operation, and gas is likely to leak from the high pressure chamber to the low pressure chamber, so that the refrigerating capacity is reduced, and the compression efficiency of the rolling rotor compressor is reduced. It is therefore desirable to improve the seal between the high pressure chamber and the low pressure chamber to avoid gas leakage from the high pressure chamber to the low pressure chamber.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a matching cylinder for a rotor compressor, which can improve the sealing performance of a slider mechanism and the efficiency, and can reduce leakage, aiming at the defects of the prior art.

The technical scheme adopted by the invention is as follows: the utility model provides a rotor compressor is with supporting cylinder that can reduce leakage, includes the cylinder body, is equipped with the slider groove of cylinder hole and radial setting on the cylinder body, its characterized in that: the front end of the sliding block groove on the cylinder body is provided with a preventing groove matched with the sliding block, the preventing groove is located at the junction of the sliding block groove and the cylinder hole, and the preventing groove is symmetrically arranged relative to the center line of the sliding block groove and is formed by inwards recessing towards the sliding block groove.

According to the technical scheme, the anti-groove comprises a first surface and a first side surface, wherein the first surface and the first side surface are symmetrically arranged at the front ends of two sides of the sliding block groove on the cylinder body, the first surface is an arc-shaped curved surface, and the first side surface is respectively connected with the inner surface and the first surface of the cylinder hole.

According to the technical scheme, the first surface extends in the circumferential direction relative to the inner surface of the cylinder.

According to the technical scheme, a gap of 0.05-0.2 mm exists between the slide sheet and the anti-slot groove.

According to the technical scheme, the width of the anti-slot is larger than that of the slider slot, and the anti-slot and the slider slot form a T-shaped structure.

The beneficial effects obtained by the invention are as follows: when the rolling rotor moves to the center of the slide sheet groove, the slide sheet can be completely embedded into the cylinder anti-groove. The gas can be completely discharged without clearance, and the displacement is increased, so that the efficiency of the compressor can be improved.

Drawings

Fig. 1 is a structural diagram of a supporting cylinder according to an embodiment of the present invention.

Fig. 2 is a structural diagram of the matching cylinder and the elastic sheet type sliding sheet mechanism provided by the embodiment of the invention.

Fig. 3 is a structural diagram of another cylinder according to an embodiment of the present invention.

Fig. 4 is a structural diagram of the matching cylinder and the hinge type sliding-vane mechanism provided by the embodiment of the invention.

Fig. 5 is a schematic view of a state that the hinge type sliding piece is completely embedded in the cylinder anti-groove in the embodiment of the invention.

Detailed Description

The invention will be further explained with reference to the drawings.

As shown in fig. 1, the present embodiment provides a cylinder for a rotor compressor, which is capable of reducing leakage, and includes a cylinder body 403, a cylinder hole and a slider groove 404 disposed radially are disposed on the cylinder body 403, an anti-slot 4 disposed at a front end of the slider groove on the cylinder body and used for cooperating with a sliding piece is disposed, the anti-slot 4 is disposed at a boundary between the slider groove and the cylinder hole, and the anti-slot is symmetrically disposed with respect to a center line of the slider groove and is formed by recessing towards the slider groove. The width of the anti-slot 4 is larger than that of the slider slot 404, and the two form a T-shaped structure. The sliding sheet matched with the sliding block can be of a spring sheet type structure or a hinge type sliding sheet structure, and the shape of the anti-groove is adjusted according to the structural adaptability of the sliding sheet.

As shown in fig. 2, the sliding vane is of a spring sheet type structure, namely, the spring sheet type sliding vanes 2 are symmetrically arranged at the front end of the sliding block, the two spring sheet type sliding vanes are respectively provided with end parts which are used for abutting against the side wall of the rotor and are arranged in a curved surface, the two end parts respectively extend towards the circumferential direction of the rotor relative to the root part and are oppositely unfolded, the height of each spring sheet type sliding vane is the same as that of the sliding block body, the spring sheet type sliding vanes 2 have elasticity and can be in contact with the surface of the eccentric rotor which runs to each angle, meanwhile, the arc surface of the sliding block body is in line contact with the eccentric rotor, so that the sliding block mechanism always has three positions to be in contact with the rolling rotor when the compressor runs, two surfaces are in contact, one surface is in contact, the leakage area is increased, and the multiple leakage prevention function. The supporting cylinder that this embodiment provided is equipped with anti-slot 4 and shell fragment formula slide and disposes mutually, anti-slot 4 includes that it sets up first surface 401 and first side 402 to lie in the symmetrical setting of slide groove both sides front end on the cylinder body, first surface 401 is the arc curved surface, the relative cylinder internal surface circumferential direction of first surface extends the setting. The first side face 402 is respectively connected with the inner surface of the cylinder hole and the first surface 401 and is matched with the back shape of the elastic sheet type sliding sheet, when the rolling rotor runs to the center position of the sliding sheet groove, the elastic sheet type sliding sheet 2 can be completely embedded into the cylinder anti-groove 4, so that all gas can be discharged, no clearance exists, the air displacement is increased, and the efficiency of the compressor can be improved. Wherein the slide sheet and the anti-groove have a clearance of 0.05-0.2 mm, preferably 0.1 mm.

The hinge type slide sheet structure is shown in fig. 3 and 4, and the hinge type slide sheet is connected with the slide block 3 through a ball joint hinge. The side wall of the hinged sliding sheet 5 is provided with an arc-shaped curved surface 201 which is concave inwards towards the eccentric rotor side and is used for being in surface contact with the outer peripheral surface of the eccentric rotor 1. The sliding block structure is always in surface contact with the rolling rotor 1 when the compressor runs, so that the leakage area is increased, the gas leakage of a high-pressure cavity to a low-pressure cavity is reduced, and the efficiency of the compressor is improved; the first surface 401 of the anti-slot of this structure is a shape matching with the back surface of the hinge type slide sheet, and is also a circular arc curved surface. When the rolling rotor runs to the center of the sliding vane slot, the hinged sliding vane 1 can be completely embedded into the cylinder anti-groove (as shown in fig. 5), so that the gas can be completely discharged, no clearance exists, the displacement is increased, and the efficiency of the compressor can be improved.