CN202451383U

CN202451383U - Hydraulic pump

Info

Publication number: CN202451383U
Application number: CN201220070467XU
Authority: CN
Inventors: 支建明
Original assignee: TAICANG JINLU ELECTROPLATING CO Ltd
Current assignee: TAICANG JINLU ELECTROPLATING CO Ltd
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-09-26
Anticipated expiration: 2022-02-28

Abstract

The utility model discloses a hydraulic pump. The hydraulic pump comprises a pump body, an oil suction valve, an oil suction pipe, an oil pressing valve, an oil pressing pipe, a plunger piston, a spring, a sealed work cavity and a cam, wherein the oil pressing valve is connected with the sealed work cavity through the oil pressing pipe; the oil suction valve is connected with the sealed work cavity through the oil suction pipe; the spring is connected with the sealed work cavity; and the cam is connected with the plunger piston. The hydraulic pump has simple structure, light weight and high bearing capacity, and realizes overload protection easily.

Description

A kind of oil hydraulic pump

Technical field

The utility model relates to a kind of oil hydraulic pump.

Background technique

The application of pump on industrial market is very extensive, and still, the pump that is provided in the market all exists volumetric efficiency low mostly, reveals greatly, and is inappropriate for the problem of under high pressure working.

The model utility content

The model utility purpose: the purpose of the utility model is in order to solve the deficiency of existing technology, a kind of oil hydraulic pump to be provided.

Technological scheme: in order to realize above purpose, the described a kind of oil hydraulic pump of the utility model comprises the pump housing, oil sucting valve; Fuel sucking pipe is pressed fuel tap, pressuring oil pipe, plunger; Spring, the seal operation chamber, cam, described pressure fuel tap is connected with the seal operation chamber through pressuring oil pipe; Described oil sucting valve is connected with the seal operation chamber through fuel sucking pipe, and described spring is connected with the seal operation chamber, and described cam is connected with plunger.

In order to guarantee oil suction and the one-way of pressing oil, described oil sucting valve is one-way valve with pressing fuel tap.

In order to guarantee the stability of active chamber pressure, described inlet port can not be communicated with pressing hydraulic fluid port.

Beneficial effect: a kind of oil hydraulic pump that the utility model provides, volumetric efficiency is high, reveals for a short time, and is suitable under high pressure working.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Wherein: 1. the pump housing, 2. oil sucting valve, 3. fuel sucking pipe is 4. pressed fuel tap, 5. pressuring oil pipe, 6. plunger, 7. spring, 8. active chamber, 9. cam.

Embodiment

Further illustrate the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, a kind of oil hydraulic pump comprises the pump housing, oil sucting valve, fuel sucking pipe; Press fuel tap, pressuring oil pipe, plunger, spring; The seal operation chamber, cam, described pressure fuel tap is connected with the seal operation chamber through pressuring oil pipe, and described oil sucting valve is connected with the seal operation chamber through fuel sucking pipe; Described spring is connected with the seal operation chamber, and described cam is connected with plunger, and described oil sucting valve is one-way valve with pressing fuel tap, and described inlet port can not be communicated with pressing hydraulic fluid port.

Utilize the oil hydraulic pump oil suction and press oil, when cam 9 turned right, the plunger 6 that is connected with cam 9 also moved right, and the volume of active chamber 8 increases; Form vacuum, the oil in the fuel tank sucks active chamber from fuel sucking pipe 3, and press fuel tap 4 to close this moment; Realize oil suction, when cam moved to left, the plunger 6 that is connected with cam 9 also was moved to the left; At this moment, the volume of active chamber 8 reduces, and internal pressure become greater to be enough to hit out when pressing fuel tap 5; Fluid is outwards exported through pressuring oil pipe 5, at this moment, and the fuel sucking pipe 3 closed pressure oil of realizing.

The foregoing description only is the technical conceive and the characteristics of explanation the utility model, its objective is to let to be familiar with the also enforcement according to this of content that these those skilled in the art can understand the utility model, can not limit the protection domain of the utility model with this.All equivalents or modifications of having done according to the utility model spirit all should be encompassed within the protection domain of the utility model.

Claims

1. an oil hydraulic pump comprises the pump housing (1), oil sucting valve (2); Fuel sucking pipe (3) is pressed fuel tap (4), pressuring oil pipe (5); Plunger (6), spring (7), seal operation chamber (8); Cam (9), described pressure fuel tap (4) is connected with seal operation chamber (8) through pressuring oil pipe (5), and described oil sucting valve (2) is connected with seal operation chamber (8) through fuel sucking pipe (3); Described spring (7) is connected with the seal operation chamber, and described cam (9) is connected with plunger (6).

2. a kind of oil hydraulic pump according to claim 1 is characterized in that: described oil sucting valve (2) is one-way valve with pressing fuel tap (4).

3. a kind of oil hydraulic pump according to claim 1 is characterized in that: described fuel sucking pipe (3) can not be communicated with pressuring oil pipe (5).