CN201757057U - High-efficiency energy-saving oil pump - Google Patents

Abstract

A high-efficiency energy-saving oil pump, which comprises a casing, an end cover, rotors in pair arrangement and a rotary shaft connected with central holes of the rotors. The high-efficiency energy-saving oil pump is characterized in that a middle piece arranged inside the casing divides the casing into a high-pressure cavity and a low-pressure cavity, cushion plates are sandwiched among the rotors and the middle piece, the rotors and the cushion plates are in surface sealing, sliders mutually contacting with the two rotors are arranged in the casing above the middle piece, rollers are arranged on contacting portions of the sliders with the rotors, elastic layers are further arranged among the rollers and the sliders, oil inlets communicated with the low-pressure cavity are arranged on the cushion plates, and oil outlets communicated with the oil inlets are sleeved on a pump outer ring inside the casing. The high-efficiency energy-saving oil pump has the advantages of simple structure, reliable performance, high efficiency, low noise, high self-absorption capacity and long service life.

Description

Energy-efficient oil pump

Technical field

The utility model relates to a kind of oil pump, especially a kind of good sealing effect, and the operation noise is little, and suction capacity is strong, improves the delivery pressure of pump and the energy-efficient oil pump of discharge capacity.

Background technique

Pump relies on by changing volume to come the fluid in it is carried or the device of supercharging as a kind of, is applied in the every field more and more.But traditional pump, especially traditional oil pump exists many problems in the process of using: as pump housing bore seal poor-performing, can produce situations such as leakage of oil, pressure release, the friction between each parts mostly is sliding friction when operation simultaneously, impact greatlyyer, the working life of rotor is shorter; Especially there is certain defective in traditional pump housing on structural design, in the running of pump, hyperbaric chamber in the pump housing and low-pressure cavity can have situation about being interconnected to take place in a flash at certain, influence pump oil effect.

Summary of the invention

The utility model is in order to solve existing in prior technology the problems referred to above, to provide a kind of simple in structure, reliable performance, and efficient height, noise are little, and suction capacity is strong, the energy-efficient oil pump of long service life.

Concrete solution of the present utility model is: a kind of energy-efficient oil pump, comprise housing 1, end cap 2, the paired rotor 3 and the rotating shaft 4 that is connected with rotor 3 center holes that is provided with, it is characterized in that: the intermediate 5 that is provided with in housing 1 is divided into hyperbaric chamber 6 and low-pressure cavity 7 with housing 1, between rotor 3 and intermediate 5, be folded with backing plate 8, be face seal between rotor 3 and the backing plate 8, in the housing 1 above intermediate 5, be provided with the slide block 9 that is in contact with one another with two rotors 3, slide block 9 is provided with roller 10 with the contact segment of rotor 3, and between roller 10 and slide block 9, also be provided with elasitic layer 11, backing plate 8 is provided with the oiler 12 that communicates with low-pressure cavity 7, and the oil outlet 13 that is connected with oiler 12 is arranged on the pump housing outer ring 14 that is socketed in the housing 1.

The utility model is compared with prior art, has following advantage:

This product simple in structure designs ingeniously, by creationary structural design, makes the sealing of pump housing inside tighter, and can be communicated with in no instance between the pump housing hyperbaric chamber of this structural type and the low-pressure cavity, guaranteed the normal operation of pump oil work; And when the part of sliding friction in original pump housing changes rolling friction into, also designed buffer structure, by reducing friction and impacting, reach the purpose that reduces noise and increase the service life.In sum, this product possesses extensive market prospects, very helps applying in the art.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation.

Fig. 2 be Figure 1A-A to sectional view.

Fig. 3 is the structural representation of rotor portion.

Embodiment

Below in conjunction with description of drawings embodiment of the present utility model.As Fig. 1, shown in Figure 2: the energy-efficient oil pump of this structural type, comprise housing 1, be provided with end cap 2 at the two ends of housing 1, be provided with paired rotor 3 in the housing 1, and in the center hole of rotor 3, also be connected with rotating shaft 4, in housing 1, be provided with intermediate 5, it is divided into hyperbaric chamber 6 and low-pressure cavity 7 with housing 1, between rotor 3 and intermediate 5, be folded with backing plate 8, and be face seal between rotor 3 and the backing plate 8, in the housing 1 above intermediate, be provided with slide block 9, and the two ends of slide block 9 and two rotors that are oppositely arranged 3 are in contact with one another, and are provided with roller 10 in the contact segment of slide block 9 and rotor 3, to reduce the frictional force that slide block 9 and rotor 3 are produced when the relative movement; Simultaneously also be provided with elasitic layer 11 between roller 10 and slide block 9, the elasitic layer 11 here can be made by elastic material, also can be elastic mechanism composition such as spring have buffering, the elasitic layer of function such as reset; Backing plate 8 is provided with oiler 12, the oil that enters pump housing inner chamber by pump intake enters from oiler 12, is discharged by oil outlet 13, and finally discharges the pump housing by pump discharge, realize the conveying of fluid, oil outlet 13 then is arranged on the pump housing outer ring 14 that is socketed in the housing 1.

The working procedure of the utility model embodiment's energy-efficient oil pump is as follows: when rotating shaft 4 is rotated under the effect of motor, can drive two paired rotors 3 rotates in pump housing inner chamber, and pump housing inner chamber is divided into hyperbaric chamber 6 and low-pressure cavity 7 by intermediate 5, because the end face molded lines of rotor 3 is Archimedes spiral (constant velocity spiral), like this when rotor 3 rotations, cavity volume between rotor 3 and the intermediate 5 ceaselessly changes, and according to descending, ascending, descending again mode circulates, because be face seal between rotor 3 and the backing plate 8, so take place to motion the time, still can guarantee good sealing property at rotor 3 and backing plate 8;

And in the housing except that intermediate 51, also be provided with slide block 9, the two end part of slide block 9 contact with two rotors 3 respectively, and also be provided with roller 10 at touching position, when slide block 9 with rotor 3 relative movement takes place, be the less rolling friction of friction factor so herein; Simultaneously in order to guarantee excellent sealing, the reduction impact between the two, between roller 10 and slide block 9, also be provided with elasitic layer 11, this elasitic layer 11 first can absorb the impact force that produces between slide block 9 and the rotor 3, second can also guarantee to remain tight the contact between slide block 9 and the rotor 3, guarantees sealing;

Rotor 3 is in rotating process, and the volume between rotor 3 and the intermediate 5 constantly changes, and when low-pressure cavity 6 volumes that join with pump intake change from small to big, forms negative pressure in the low-pressure cavity 6, and fluid is sucked in it; Rotor 3 continues rotation, the volume of low-pressure cavity 6 is diminished gradually, and the volume of hyperbaric chamber 7 increases gradually, hyperbaric chamber 7 forms negative pressure with respect to low-pressure cavity 6, fluid in the low-pressure cavity 6 can enter hyperbaric chamber 7 by the oiler 12 that is arranged on the backing plate 8, and when hyperbaric chamber 7 diminished gradually, fluid was then discharged by the oil outlet 13 that is arranged on the pump housing outer ring 14, and by pump discharge excavationg pump external body; In the process that rotor 3 does not stop to rotate, low-pressure cavity 6 repeats above-mentioned work repeatedly with hyperbaric chamber 7, realizes the purpose of delivering oil (especially carrying viscous crude liquid).

This oiler 12 is arranged on the backing plate 8 (with intermediate 5), and oil outlet 13 is arranged on structural type on the pump housing outer ring 14 (being the sidewall of the pump housing), no matter where can guarantee rotor 3 rotates to, low-pressure cavity 6 has only an oily passage of stream to be connected with hyperbaric chamber 7, reduced the leakage rate of pump housing inside effectively, increase the delivery pressure of pump, improved its suction capacity.

Claims (1)

1. energy-efficient oil pump, comprise housing (1), end cap (2), the paired rotor (3) and the rotating shaft (4) that is connected with rotor (3) center hole that is provided with, it is characterized in that: the intermediate (5) that is provided with in housing (1) is divided into hyperbaric chamber (6) and low-pressure cavity (7) with housing (1), between rotor (3) and intermediate (5), be folded with backing plate (8), be face seal between rotor (3) and the backing plate (8), in the housing (1) of intermediate (5) top, be provided with the slide block (9) that is in contact with one another with two rotors (3), slide block (9) is provided with roller (10) with the contact segment of rotor (3), and between roller (10) and slide block (9), also be provided with elasitic layer (11), backing plate (8) is provided with the oiler (12) that communicates with low-pressure cavity (7), and the oil outlet (13) that is connected with oiler (12) is arranged on the pump housing outer ring (14) that is socketed in the housing (1).

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