CN210265106U

CN210265106U - Hydraulic pump

Info

Publication number: CN210265106U
Application number: CN201921176398.9U
Authority: CN
Inventors: 朱伟飞
Original assignee: Ninghai Benyi Machinery Co ltd
Current assignee: Ninghai Benyi Machinery Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-04-07
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses a hydraulic pump belongs to hydraulic equipment technical field, and the running-board elastic pin is installed on the cylinder body through the running-board in the hydraulic pump to the footboard, and the steel ball setting is in the middle of big plunger and little plunger in the hydraulic pump, and one side of rigid ball is provided with the valve body, is provided with the case in the valve body, has seted up the uniform pressure groove on the case, and the case passes through pagoda spring and links to each other with the bolt, and the opposite side of steel ball is provided with the firing pin, and the firing pin passes the spring. The pressure equalizing valve has the advantages that the pressure equalizing grooves are formed in the cylindrical valve core, so that different pressure areas on the valve core are communicated with each other, the pressure distribution tends to be uniform, the hydraulic blocking phenomenon can be effectively relieved, the hydraulic blocking resistance is reduced, and the normal operation of a main machine is ensured.

Description

Hydraulic pump

Technical Field

The utility model relates to a hydraulic equipment technical field, in particular to hydraulic pump.

Background

The hydraulic pump is widely applied to various fields of national economy by unique technical advantages, in particular to the industrial fields of metallurgy, steel rolling, walking machinery and the like. In order for the hydraulic pump to drive each hydraulic actuator to perform an effective process, a hydraulic control valve is required to control the pressure, flow and direction of the hydraulic oil. However, the conventional hydraulic pump is often blocked by hydraulic pressure, and the valve core is blocked in the valve body and cannot work normally, so that the hydraulic cylinder fails to work and normal operation of host equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a hydraulic pump, through set up the pressure-equalizing groove on the cylinder case, make different pressure district intercommunications on the case, make the pressure distribute and tend to evenly, can alleviate hydraulic pressure jamming phenomenon effectively, reduce hydraulic pressure jamming resistance, guarantee the normal operating of host computer.

In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic pump characterized by: the hydraulic pump is characterized in that a pedal 5 is installed on a cylinder body through a pedal elastic pin, a steel ball 8 in the hydraulic pump is arranged between a large plunger 1 and a small plunger, a valve body 11 is arranged on one side of the steel ball 8, a valve core 9 is arranged in the valve body 11, a pressure equalizing groove 7 is formed in the valve core 9, the valve core 9 is connected with a bolt 3 through a pagoda spring 10, a firing pin 6 is arranged on the other side of the steel ball 8, and the firing pin 6 penetrates through the spring to be installed in a firing pin seat.

Preferably, an O-ring is mounted on the striker 6. The beneficial effects are that: the design has small dynamic friction resistance and low cost.

Preferably, the pedal 5 is provided with an adjusting screw. The beneficial effects are that: the design can adjust the distance between the pedal and the striker in time according to requirements.

Preferably, the adjustment screw is directed towards the center of the striker 6. The beneficial effects are that: the design effectively prevents the striker from deforming after multiple uses.

Preferably, the protruding edge of the pagoda spring 10 is caught in the groove of the bolt 3. The beneficial effects are that: therefore, the integrity of the bolt and the pagoda spring is ensured, and the synchronous movement of the bolt and the pagoda spring is ensured.

Preferably, the centers of the valve core 9 and the striker 6 are on a horizontal line with the steel ball 8. The beneficial effects are that: the design ensures the level of acting force and prevents the failure of the firing pin and the valve core after long-term use.

Compared with the prior art, the beneficial effects of the utility model are that: the pressure equalizing groove is formed in the cylindrical valve core, so that different pressure areas on the valve core are communicated with each other, the pressure distribution tends to be uniform, the hydraulic blocking phenomenon can be effectively relieved, the hydraulic blocking resistance is reduced, and the normal operation of the main machine is ensured.

Drawings

Fig. 1 is a side view of the present invention;

fig. 2 is a cross-sectional view of the present invention at a;

fig. 3 is an enlarged view at B in fig. 2.

In the figure: 1. a large plunger; 2. a small plunger spring; 3. a bolt; 4. a spring cover stop pin; 5. a foot pedal; 6. a striker; 7. a pressure equalizing groove; 8. a steel ball; 9. a valve core; 10. a pagoda spring; 11. a valve body.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The first embodiment is as follows: as shown in the figure, a hydraulic pump is characterized in that: the hydraulic pump is characterized in that a pedal 5 is installed on a cylinder body through a pedal elastic pin, a steel ball 8 in the hydraulic pump is arranged between a large plunger 1 and a small plunger, a valve body 11 is arranged on one side of the steel ball 8, a valve core 9 is arranged in the valve body 11, a pressure equalizing groove 7 is formed in the valve core 9, the valve core 9 is connected with a bolt 3 through a pagoda spring 10, a firing pin 6 is arranged on the other side of the steel ball 8, the firing pin 6 penetrates through the spring to be installed in a firing pin seat, an O-shaped ring is installed on the firing pin 6, and the centers of the valve core 9 and the firing pin 6 are on the same horizontal line.

Example two: the other structures are the same as the first embodiment, but the difference is that the nut is riveted on the cylinder body and cannot rotate, and a spring is added behind the valve body.

Claims

1. A hydraulic pump characterized by: the hydraulic pump is characterized in that a pedal (5) is installed on a cylinder body through a pedal elastic pin, a steel ball (8) is arranged between a large plunger (1) and a small plunger in the hydraulic pump, a valve body (11) is arranged on one side of the steel ball (8), a valve core (9) is arranged in the valve body (11), a pressure equalizing groove (7) is formed in the valve core (9), the valve core (9) is connected with a bolt (3) through a pagoda spring (10), a firing pin (6) is arranged on the other side of the steel ball (8), and the firing pin (6) penetrates through the spring to be installed in a firing pin seat.

2. A hydraulic pump according to claim 1, characterized in that: and an O-shaped ring is arranged on the firing pin (6).

3. A hydraulic pump according to claim 1, characterized in that: and an adjusting screw is arranged on the pedal plate (5).

4. A hydraulic pump according to claim 3, characterized in that: the adjusting screw is opposite to the center of the firing pin (6).

5. A hydraulic pump according to claim 1, characterized in that: the protruding edge of the pagoda spring (10) is clamped in the groove of the bolt (3).

6. A hydraulic pump according to claim 1, characterized in that: the centers of the valve core (9) and the firing pin (6) are on the same horizontal line with the steel ball (8).