CN220081667U - Pump head of needle roller type vortex compressor - Google Patents

Abstract

The utility model discloses a needle roller type vortex compressor pump head, which relates to the technical field of compressors; a plurality of through holes are fixedly formed in the movable disc, needle rollers are movably inserted in the through holes, and two ends of the needle rollers are respectively and rotatably connected with the first shaft sleeve and the second shaft sleeve; the rolling needles are inserted into the through holes of the movable disc and matched with the shaft sleeves at two sides to limit the rotation angle of the movable disc, when the movable disc drives the rolling needles at the inner cavities of the movable disc to synchronously rotate, the rolling needles are inserted into the shaft sleeves at two ends to rotate in a certain track in the shaft sleeves, so that the movable disc in rotation can rotate in a certain angle by taking the eccentric driving shaft as the shaft center, the rotation angle of the movable disc is limited, the movement track of the movable disc is reduced, the friction between the movable disc and the movable disc is reduced, the energy consumption consumed by friction is reduced, the cost is saved, the noise is reduced, the environment is protected, and the service life of the compressor is effectively prolonged.

Description

Pump head of needle roller type vortex compressor

Technical Field

The utility model belongs to the technical field of compressors, and particularly relates to a needle roller type vortex compressor pump head.

Background

The compressor is a driven fluid machine that lifts low-pressure gas into high-pressure gas. Currently, compressors commonly employed in the refrigeration and air conditioning industry generally include reciprocating, screw, centrifugal, rotary, and scroll compressors, wherein rotary and scroll compressors are used primarily in domestic and low capacity commercial air conditioning units.

The applicant filed several patents about compressors, such as CN202222138374.2 and CN202222146432.6, and the excessive sliding vane plays a role in dividing the high-low pressure cavity by connecting the cavity upper cover and the moving plate when the moving plate operates in the compressor, and the moving plate has no limit of rotation angle, so that the swinging angle of the moving plate is relatively large, resulting in great friction between the excessive sliding vane and the cavity upper cover and the moving plate, thereby reducing the efficiency of the compressor.

In order to limit the rotation angle of the movable disc and reduce the friction between the excessive sliding sheets and the upper cover of the cavity and the movable disc, the applicant develops a series of structures for limiting the rotation angle of the brake disc, and the utility model limits the rotation angle of the brake disc through the cooperation of the rolling needles in the movable disc and the shaft sleeves at the two sides.

Disclosure of Invention

To solve the defects and the shortages of the prior art; the utility model aims to provide a needle roller type vortex compressor pump head which is simple in structure, reasonable in design and convenient to use, and can limit the rotation angle of a movable disc through the cooperation of needle rollers inserted in through holes on the movable disc and shaft sleeves on two sides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the device comprises a bottom cover, a first shaft sleeve, a movable disc, a needle roller, an upper cover and a second shaft sleeve; the novel roller bearing comprises a bottom cover, and is characterized in that a plurality of first step holes are fixedly arranged on the bottom cover, a first shaft sleeve is fixedly arranged in the first step holes, a plurality of second step holes are fixedly arranged on the upper cover, a second shaft sleeve is fixedly arranged in the second step holes, a plurality of through holes are fixedly arranged on the movable plate, roller pins are movably inserted in the through holes, and two ends of each roller pin are respectively and rotatably connected with the first shaft sleeve and the second shaft sleeve.

Preferably, it also comprises an eccentric drive shaft, a locating pin and a cavity; the eccentric driving shaft is sequentially and rotatably connected with the bottom cover, the movable disc and the upper cover through bearings, and the bottom cover, the cavity and the upper cover are fixedly connected through positioning pins and bolts and movably seal the movable disc in the cavity.

Preferably, the side wall of the movable disc is rotationally connected with one end of the excessive sliding sheet, and the inner side wall of the cavity is in sliding connection with the other end of the excessive sliding sheet through the transition rotor.

Preferably, the upper cover is fixedly arranged on the back surface of the upper cover through bolts in sequence with the one-way valve plate and the one-way valve pressing plate, and the air outlet hole on the upper cover is controlled through the one-way valve plate.

Compared with the prior art, the utility model has the beneficial effects that: the utility model realizes the limitation of the rotation angle of the movable disc through the cooperation of the needle rollers inserted in the through holes on the movable disc and the shaft sleeves at two sides, when the eccentric driving shaft drives the movable disc to rotate, the movable disc drives the needle rollers in the inner cavity of the movable disc to synchronously rotate, and the two ends of the needle rollers are respectively inserted in the shaft sleeves at two ends, so that the needle rollers rotate in the shaft sleeves with a certain track, the rotating movable disc can rotate in a certain angle by taking the eccentric driving shaft as the shaft center, the limitation of the rotation angle of the movable disc is realized, the rotation angle of the brake disc is limited, the movement track of the movable disc is reduced, the friction among the movable disc and the energy consumption caused by friction are reduced, the cost is saved, the noise is reduced, the environment is protected, and the service life of the compressor is effectively prolonged.

Drawings

For ease of illustration, the utility model is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a schematic diagram of an explosive structure of the present utility model;

fig. 2 is a schematic structural view of the upper cover 11 in the present utility model;

FIG. 3 is a schematic diagram of an assembled structure of the present utility model;

fig. 4 is a schematic view of the assembled internal structure of the present utility model.

In the figure: eccentric drive shaft 1, bottom 2, locating pin 3, axle sleeve one 4, cavity 5, movable disk 6, excessive gleitbretter 7, transition rotor 8, kingpin 9, axle sleeve two 10, upper cover 11, check valve piece 12, check valve clamp plate 13, step hole one 21, through-hole 61, step hole two 1101.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

It should be noted here that, in order to avoid obscuring the present utility model due to unnecessary details, only structures and/or processing steps closely related to the solution according to the present utility model are shown in the drawings, while other details not greatly related to the present utility model are omitted.

As shown in fig. 1 to 4, the present embodiment adopts the following technical scheme: the device comprises a bottom cover 2, a first shaft sleeve 4, a movable disc 6, a needle roller 9, an upper cover 11 and a second shaft sleeve 10; the bottom cover 2 is fixedly provided with a plurality of first step holes 21, a first shaft sleeve 4 is fixedly arranged in the first step holes 21, the upper cover 11 is fixedly provided with a plurality of second step holes 1101, a second shaft sleeve 10 is fixedly arranged in the second step holes 1101, the movable disc 6 is fixedly provided with a plurality of through holes 61, the through holes 61 are movably inserted with rolling pins 9, and two ends of the rolling pins 9 are respectively in rotary connection with the first shaft sleeve 4 and the second shaft sleeve 10; it also comprises an eccentric driving shaft 1, a locating pin 3 and a cavity 5; the eccentric driving shaft 1 is sequentially and rotatably connected with the bottom cover 2, the movable disc 6 and the upper cover 11 through bearings, the bottom cover 2, the cavity 5 and the upper cover 11 are fixedly connected through the locating pin 3 and bolts, and the movable disc 6 is movably sealed in the cavity 5.

In the implementation, the method comprises the following steps: the limitation of the rotation angle of the movable disc 6 is realized through the cooperation of the needle rollers 9 inserted in the through holes 61 on the movable disc 6 and the shaft sleeves at the two sides, when the eccentric driving shaft 1 drives the movable disc 6 to rotate, the movable disc 6 drives the needle rollers 9 in the inner cavity of the movable disc to synchronously rotate, and the two ends of the needle rollers 9 are respectively inserted in the shaft sleeves at the two ends, so that the needle rollers 9 rotate in the shaft sleeves at a certain track, the rotating movable disc 6 can rotate in a certain angle by taking the eccentric driving shaft 1 as the shaft center, and the limitation of the rotation angle of the movable disc 6 is realized.

Further, the side wall of the movable disc 6 is rotatably connected with one end of the excessive sliding sheet 7, and the inner side wall of the cavity 5 is slidably connected with the other end of the excessive sliding sheet 7 through the excessive rotor 8.

In the implementation, the method comprises the following steps: the cavity 5 and the movable disk 6 are connected through the excessive sliding vane 7, and gas in the cavity 5 is divided at two sides of the excessive sliding vane 7, so that the high-low pressure cavity type division is realized.

Further, the upper cover 11 sequentially and fixedly mounts the check valve plate 12 and the check valve pressing plate 13 on the back surface of the upper cover 11 through bolts, and the air outlet hole on the upper cover 11 is controlled through the check valve plate 12.

The specific working principle of the compressor is described in detail, and the utility model only improves the structure for limiting the rotation angle of the movable disk, so the specific working principle of the compressor is not described herein.

The working principle of the specific embodiment is as follows: according to the utility model, the limit of the rotation angle of the movable disc 6 is realized through the cooperation of the needle rollers 9 inserted in the through holes 61 on the movable disc 6 and the shaft sleeves at two sides, when the eccentric driving shaft 1 drives the movable disc 6 to rotate, the movable disc 6 drives the needle rollers 9 in the inner cavity of the movable disc to synchronously rotate, and the two ends of the needle rollers 9 are respectively inserted in the shaft sleeves at two ends, so that the needle rollers 9 rotate in the shaft sleeves at a certain track, the movable disc 6 in rotation can rotate at a certain angle by taking the eccentric driving shaft 1 as the shaft center, the limit of the rotation angle of the movable disc 6 is realized, the rotation angle of the movable disc 6 is limited, the movement track of the movable disc 6 is reduced, the friction among the movable disc 6 is reduced, the energy consumption consumed by friction is reduced, the cost is saved, the noise is reduced, the environment is protected, and the service life of the compressor is effectively prolonged.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (4)

1. The utility model provides a kingpin formula vortex compressor pump head which characterized in that: the novel needle roller comprises a bottom cover (2), a first shaft sleeve (4), a movable disc (6), a needle roller (9), an upper cover (11) and a second shaft sleeve (10); the novel roller bearing is characterized in that a plurality of first step holes (21) are fixedly arranged on the bottom cover (2), a first shaft sleeve (4) is fixedly arranged in the first step holes (21), a plurality of second step holes (1101) are fixedly arranged on the upper cover (11), a second shaft sleeve (10) is fixedly arranged in the second step holes (1101), a plurality of through holes (61) are fixedly arranged on the movable plate (6), rolling pins (9) are movably inserted in the through holes (61), and two ends of the rolling pins (9) are respectively in rotary connection with the first shaft sleeve (4) and the second shaft sleeve (10).

2. The needle roller type scroll compressor pump head as claimed in claim 1, wherein: the device also comprises an eccentric driving shaft (1), a positioning pin (3) and a cavity (5); the eccentric driving shaft (1) is sequentially and rotatably connected with the bottom cover (2), the movable disc (6) and the upper cover (11) through bearings, the bottom cover (2), the cavity (5) and the upper cover (11) are fixedly connected through positioning pins (3) and bolts, and the movable disc (6) is movably sealed in the cavity (5).

3. The needle roller type scroll compressor pump head as claimed in claim 2, wherein: the side wall of the movable disc (6) is rotationally connected with one end of the excessive sliding sheet (7), and the inner side wall of the cavity (5) is in sliding connection with the other end of the excessive sliding sheet (7) through a transition rotor (8).

4. The needle roller type scroll compressor pump head as claimed in claim 1, wherein: the upper cover (11) is sequentially and fixedly provided with a one-way valve plate (12) and a one-way valve pressing plate (13) through bolts, and the air outlet hole on the upper cover (11) is controlled through the one-way valve plate (12).