CN204553222U

CN204553222U - eccentric sliding pressure pump

Info

Publication number: CN204553222U
Application number: CN201520239722.2U
Authority: CN
Inventors: 周密; 陈海新
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-20
Filing date: 2015-04-20
Publication date: 2015-08-12
Anticipated expiration: 2025-04-20

Abstract

The purpose of this utility model is to provide a kind of eccentric sliding pressure pump, when guaranteeing compression effectiveness, reduces the loss in using process.For reaching described effect, a kind of refrigerant pressure pump of the utility model, comprise the sleeve be connected on eccentric shaft, and and sleeve coupling overcoat, described sleeve is built with floral disc, and the diameter of described floral disc is less than the internal diameter of sleeve, floral disc came has and multiplely revolves slide block, described revolving on slide block has draw-in groove, and in draw-in groove, activity is plugged with dividing plate, and the other end of described dividing plate is embedded in inside sleeve.Owing to have employed described technological scheme, the utility model is by described structure, floral disc has half in air-breathing when doing circumference and being mobile, there is half at compression exhaust, so load is uniform, running like this can be very smooth-going, does not substantially have impact phenomenon, more consistent with the running state of vane pump, but whether have the blade of vane pump and the sliding friction of pump inwall high speed and high pressure power.So its runnability is better than vane pump, wear and tear less.

Description

Eccentric sliding pressure pump

Technical field

The utility model relates to a kind of chiller plant accessory, particularly relates to a kind of for the oil hydraulic pump in refrigeration system.

Background technique

The structure of centrifugal refigerating compressor is very similar to centrifugal blower with working principle.But its working principle and piston compressor have basic difference, it be not utilize cylinder volume to reduce mode to improve the pressure of gas, but rely on the change of kinetic energy to improve gas pressure.Therefore centrifugal compressor obtains the active wheel that compressor pump has band blade, and when active wheel rotates, blade just drives gas motion or makes gas obtain kinetic energy, then makes part kinetic transformation be pressure energy thus the pressure of raising gas.But in actual use, blade and the pump inwall high speed and high pressure power of blade-carrying oil hydraulic pump produce sliding friction, therefore actual wearing and tearing are also very serious.This reduces the working life of whole compressor.And if change other structure, compression effectiveness does not often reach the oil hydraulic pump of blade type.

Model utility content

The purpose of this utility model is to provide eccentric sliding pressure pump, when guaranteeing compression effectiveness, reducing the loss in using process, improving using effect.

For reaching described effect, the eccentric sliding pressure pump of the utility model, comprise the sleeve be connected on eccentric shaft, and and sleeve coupling overcoat, described sleeve is built with floral disc, the diameter of described floral disc is less than the internal diameter of sleeve, floral disc came has and multiplely revolves slide block, described revolving on slide block has draw-in groove, in draw-in groove, activity is plugged with dividing plate, the other end of described dividing plate is embedded in inside sleeve, described sleeve has at least two-layer, wherein at least the arranged outside of one deck sleeve has exhaust port, at least the arranged outside of one deck sleeve has suction port, inside described overcoat, the corresponding sleeve portion arranging exhaust port has exhaust passage, and the sleeve portion that correspondence arranges suction port has air intake passage, the outside of described overcoat is respectively equipped with the relief opening and the intakeport being connected air intake passage that connect exhaust passage.

Preferably, described in revolve slide block quantity be six, and be evenly distributed on floral disc edge.Increase due to slide block quantity can cause the rising of efficiency and cost simultaneously, and therefore such quantitative design can reach maximum cost performance.

Preferably, the draw-in groove revolved described in slide block is rectangle.Rectangle draw-in groove is convenient to dividing plate and is moved in draw-in groove.

Preferably, described dividing plate is embedded in the arc groove inside sleeve.Such structure, while restriction partition position, can make dividing plate left and right in a little scope movable.

Preferably, the outboard row gas port of described overcoat and intakeport be not in the same side.The layout of pipeline when such structure is conducive to installing.

Owing to have employed described technological scheme, the utility model is by described structure, floral disc has half in air-breathing when doing circumference and being mobile, there is half at compression exhaust, so load is uniform, running like this can be very smooth-going, does not substantially have impact phenomenon, more consistent with the running state of vane pump, but whether have the blade of vane pump and the sliding friction of pump inwall high speed and high pressure power.So its runnability is better than vane pump, wear and tear less.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is the Facad structure schematic diagram of the eccentric sliding pressure pump of the utility model.

Fig. 2 is the sectional view of the eccentric sliding pressure pump of the utility model.

Embodiment

As Fig. 1, shown in Fig. 2, the eccentric sliding pressure pump of the utility model, comprise the sleeve 2 be connected on eccentric shaft 1, and and sleeve 2 mate overcoat 3, described sleeve 2 is built with floral disc 4, the diameter of described floral disc 4 is less than the internal diameter of sleeve 2, floral disc 4 came has and multiplely revolves slide block 5, described revolving on slide block 5 has draw-in groove, in draw-in groove, activity is plugged with dividing plate 6, the other end of described dividing plate 6 is embedded in inside sleeve 2, described sleeve 2 has at least two-layer, wherein at least the arranged outside of one deck sleeve 2 has exhaust port 7, at least the arranged outside of one deck sleeve 2 has suction port 8, inside described overcoat 3, corresponding sleeve 2 position arranging exhaust port 7 has exhaust passage 9, and sleeve 2 position that correspondence arranges suction port 8 has air intake passage 10, the outside of described overcoat 3 is respectively equipped with the relief opening 11 and the intakeport 12 being connected air intake passage 10 that connect exhaust passage 9.Described slide block 5 quantity of revolving is six, and is evenly distributed on floral disc 4 edge.The described draw-in groove revolved in slide block 5 is rectangle.Described dividing plate 6 is embedded in the circular groove inside sleeve 2.The outboard row gas port 11 of described overcoat 3 and intakeport 12 be not in the same side.

Usage mode of the present utility model is identical with prior art, its principle is: drive floral disc 4 to do circumferential translation when eccentric shaft 1 rotates, by floral disc 4, dividing plate 6, revolve space that slide block 5 and sleeve 2 border surround along with the movement of floral disc 4 and change from small to big or from large to small, thus form induction chamber or compression exhaust room.By being arranged on suction port 8 in each air chamber sleeve 2 and exhaust port 7 controls air-breathing and exhaust, connecting with extraneous finally by the air intake passage 10 on overcoat 3 and exhaust passage 9, thus realizing suction low-pressure gas, after overcompression, discharging the function of pressurized gas.

When floral disc 4 does circumferential translation, revolving slide block 5 along with floral disc 4 moves together, simultaneously because dividing plate 6 is inserted in the rectangle groove revolving slide block 5, to revolve when slide block 5 moves with floral disc 4 dividing plate 6 revolving in slide block 5 groove and does relative sliding.Dividing plate 6 is installed in the circular groove of sleeve 2 inner circle, can do the swing centered by circular groove, and revolves slide block 5 and be arranged in floral disc 4 and be rotated.So floral disc 4 moves drive and revolves slide block 5 and move, revolve slide block 5 and move dividing plate 6 is slided in the rectangle groove revolving slide block 5.Revolve slide block 5 and dividing plate 6 around respective rotation, therefore whole movement process is without constraint simultaneously.At floral disc 4 cylindrical and sleeve 2 inner circle is asymptotic gradually opens, dividing plate 6 is with when revolving slide block 5 Relative sliding, and the space in besieged city, their profile borders just creates gradually little gradually large change, creates the spatial variations of air-breathing and exhaust.

Floral disc 4 has half in air-breathing when doing circumference and being mobile, has half at compression exhaust, so load is uniform, such operation can be very smooth-going, substantially impact phenomenon is not had, more consistent with the running state of vane pump, but whether have the blade of vane pump and the sliding friction of pump inwall high speed and high pressure power.So its runnability is better than vane pump, wear and tear less.

The foregoing is only specific embodiment of the utility model, but structure characteristic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed among the scope of the claims of the present utility model.

Claims

1. eccentric sliding pressure pump, comprise the sleeve (2) be connected on eccentric shaft (1), and and the overcoat (3) that mates of sleeve (2), it is characterized in that: described sleeve (2) is built with floral disc (4), the diameter of described floral disc (4) is less than the internal diameter of sleeve (2), floral disc (4) came has and multiplely revolves slide block (5), described revolving on slide block (5) has draw-in groove, in draw-in groove, activity is plugged with dividing plate (6), the other end of described dividing plate (6) is embedded in sleeve (2) inner side, described sleeve (2) has at least two-layer, wherein at least the arranged outside of one deck sleeve (2) has exhaust port (7), at least the arranged outside of one deck sleeve (2) has suction port (8), sleeve (2) position that described overcoat (3) inner side correspondence arranges exhaust port (7) has exhaust passage (9), and sleeve (2) position that correspondence arranges suction port (8) has air intake passage (10), the outside of described overcoat (3) is respectively equipped with the relief opening (11) and the intakeport (12) being connected air intake passage (10) that connect exhaust passage (9).

2. eccentric sliding pressure pump as claimed in claim 1, is characterized in that: described in revolve slide block (5) quantity be six, and be evenly distributed on floral disc (4) edge.

3. eccentric sliding pressure pump as claimed in claim 1, is characterized in that: described in the draw-in groove revolved in slide block (5) be rectangle.

4. eccentric sliding pressure pump as claimed in claim 1, is characterized in that: described dividing plate (6) is embedded in the circular groove of sleeve (2) inner side.

5. eccentric sliding pressure pump as claimed in claim 1, is characterized in that: the outboard row gas port (11) of described overcoat (3) and intakeport (12) be not in the same side.