CN213574904U

CN213574904U - Compensable valve core

Info

Publication number: CN213574904U
Application number: CN202022342239.0U
Authority: CN
Inventors: 陆振宇
Original assignee: Wuxi Xuanhang Hydraulic Technology Co ltd
Current assignee: Wuxi Xuanhang Hydraulic Technology Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-29
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a but compensating valve core relates to case technical field, for solving the ordinary case during operation among the prior art, the problem of oil transportation pressure insufficiency. One side of piston is provided with at the bottom of the valve, and sets up to a body structure with the piston at the bottom of the valve, the outside of piston is provided with the pressure-equalizing groove, and pressure-equalizing groove and piston set up to a body structure, one side of piston is provided with the connector, and connector and piston set up to a body structure, the outside of connector is provided with the throttle limit, and the throttle limit sets up to a body structure with the connector, the inside of piston is provided with the orifice, and orifice and piston set up to a body structure, the inboard at the bottom of the valve is provided with the restricted flow groove, and the restricted flow groove sets up to a body structure with the bottom of the valve, one side of connector is provided with the boss, and boss sets up to a body structure with the connector, one side of.

Description

Compensable valve core

Technical Field

The utility model relates to a case technical field specifically is a but compensating valve core.

Background

The valve element is a valve part for realizing basic functions of direction control, pressure control or flow control by means of the movement of the valve body, and can be generally divided into a ball shape (ball valve), a conical shape (cock), a discoid shape (butterfly valve and gate valve), a dome shape (stop valve and check valve) and a cylindrical shape (reversing valve) according to the shape, and the material generally takes bronze or stainless steel as the main material, and also plastic, nylon, ceramic, glass and the like.

Generally, we think that the higher the pressure is, the larger the output flow is, this statement is not comprehensive enough, really generate the flow, is the pressure difference, not the pressure, for a valve, if the pressure before and after the valve is the same, namely the valve port has no pressure difference, no matter how high the pressure is, all there is no flow output, the output of the flow must have the pressure difference (pressure drop) to transform, so the pressure compensation, actually the compensation is the pressure difference, namely through the pressure compensation, make the pressure difference before and after the valve keep a certain value, the ordinary valve core can't compensate the pressure difference when working, make the oil transportation pressure insufficient, the work efficiency is low; therefore, the market is urgently in need of developing a compensable valve core to help people to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but compensating valve core to solve the ordinary case during operation that proposes among the above-mentioned background art, the problem of oil transportation pressure insufficiency.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a but compensation case, includes the piston, one side of piston is provided with at the bottom of the valve, and sets up structure as an organic whole with the piston at the bottom of the valve, the outside of piston is provided with the pressure-equalizing groove, and pressure-equalizing groove and piston set up structure as an organic whole, one side of piston is provided with the connector, and connector and piston set up structure as an organic whole, the outside of connector is provided with the throttle limit, and the throttle limit sets up structure as an organic whole with the connector.

Preferably, the piston is internally provided with an orifice, and the orifice and the piston are arranged in an integral structure.

Preferably, the inner side of the valve bottom is provided with a flow limiting groove, and the flow limiting groove and the valve bottom are arranged into an integral structure.

Preferably, one side of the connecting body is provided with a boss, and the boss and the connecting body are arranged into an integral structure.

Preferably, one side of the boss is provided with a connector, and the connector and the boss are arranged into an integral structure.

Preferably, an oil outlet is formed in the connector, and the oil outlet and the connector are integrated.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting through the pressure-equalizing groove, under the general condition, the cone valve in the hydrovalve, the all-round opening slide valve case receives the steady state liquid power direction tends to make the valve port close all the time, all-round opening slide valve transient state liquid power direction then with the valve pocket in fluid acceleration opposite direction, the size is directly proportional with case velocity of motion, the case receives the steady state liquid power can divide into axial component and radial component, there are different compensation design methods to two ascending hydraulic power in the reality, open circumference pressure-equalizing groove on the case circular bead, in-groove pressure department equals, radial hydraulic pressure force can balance, counteract case radial hydraulic force, thereby increase fluid delivery pressure, and the work efficiency is improved.

2. The utility model discloses a through the setting of orifice, when the efflux angle of the liquid stream business turn over control body is ninety degrees, can not produce axial hydrodynamic force, rationally distributed and set up radial hole as the oil through hole on valve barrel or case, the hole efflux angle of opening completely is ninety degrees then can not produce hydrodynamic force, only the orifice that does not open completely just can produce hydrodynamic force, therefore steady state hydrodynamic force reduces by a wide margin to further increase fluid delivery pressure, improve work efficiency.

3. The utility model discloses a through the setting on throttle limit, the direction that directional valve port was closed is always to full week opening case steady state hydrodynamic force, and hydraulic pressure force that the direction was opened to accessible throttle limit production a directional valve port offsets hydrodynamic force, and increase fluid delivery pressure improves work efficiency.

4. The utility model discloses a through the setting of boss, let the case boss have the oblique angle, offset steady-state hydraulic power, increase fluid delivery pressure improves work efficiency.

Drawings

Fig. 1 is a front view of a compensable valve cartridge of the present invention;

fig. 2 is a cross-sectional view of a compensable valve cartridge of the present invention;

fig. 3 is a side view of a compensable valve cartridge of the present invention.

In the figure: 1. a valve bottom; 2. a piston; 3. a pressure equalizing groove; 4. a flow limiting groove; 5. a linker; 6. a boss; 7. a connector; 8. an oil outlet; 9. throttling the edge; 10. an orifice.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a but compensation case, includes piston 2, and one side of piston 2 is provided with at the bottom of the valve 1, and at the bottom of the valve 1 and piston 2 set up structure as an organic whole, and the outside of piston 2 is provided with equalizing groove 3, and equalizing groove 3 and piston 2 set up structure as an organic whole, and one side of piston 2 is provided with connector 5, and connector 5 and piston 2 set up structure as an organic whole, and the outside of connector 5 is provided with throttle limit 9, and throttle limit 9 sets up structure as an organic whole with connector 5.

Further, the inside of piston 2 is provided with orifice 10, and orifice 10 sets up structure as an organic whole with piston 2, and orifice 10 and the inside link up of piston 2, and the inside of piston 2 is cavity, can be by the bottom oil feed.

Further, the inner side of the valve bottom 1 is provided with a flow limiting groove 4, the flow limiting groove 4 and the valve bottom 1 are arranged into an integral structure, the valve bottom 1 is hollow, the flow limiting groove 4 is communicated with the interior of the valve bottom 1, the piston 2 moves downwards, and hydraulic oil enters the valve bottom 1 through the flow limiting groove 4.

Further, one side of the connector 5 is provided with a boss 6, the boss 6 and the connector 5 are arranged into an integral structure, the connector 5 is a core component of the integral valve core, a stressed main component is adopted, the shape design needs to be reasonable in size, and the design error cannot be overlarge.

Further, one side of boss 6 is provided with connector 7, and connector 7 sets up structure as an organic whole with boss 6, and the outside of connector 7 is half arc design for connect hydraulic drive device, connect through the mode of interlock.

Further, the inside of connector 7 is provided with oil-out 8, and oil-out 8 sets up as an organic whole structure with connector 7, and oil-out 8 can produce oil, increases pressure differential, increases hydraulic oil flow.

The working principle is as follows: when in use, the load-sensitive pressure compensation control system can be further divided into a pre-valve pressure compensation load-sensitive system and a post-valve pressure compensation load-sensitive system according to the position of the pressure compensation valve arranged in the whole hydraulic oil circuit, wherein the pre-valve compensation means that the pressure compensation valve is arranged between the oil pump and the operating valve, the post-valve compensation means that the pressure compensation valve is arranged between the operating valve and the actuating mechanism, the post-valve compensation is advanced compared with the pre-valve compensation, and mainly embodied in the condition that the oil supply of the pump is insufficient, if the oil supply of the oil pump is insufficient, the main valve of the pre-valve compensation results in more flow to light load, less flow to heavy load, namely fast light load, and when in compound action, each actuating element is asynchronous, the post-valve compensation does not have the problem, the flow provided by the pump can be proportionally distributed, each actuating element is synchronous when in compound action, and the valve core adopts post-valve compensation, go down through piston 2, hydraulic oil passes through the inside at the bottom of the restriction groove 4 entering valve 1, orifice 10 and the inner wall laminating of valve body, not open completely, increase hydraulic oil pressure difference, improve the conveying speed of hydraulic oil at the bottom of the valve 1 and the inside of piston 2, the inside hydraulic oil of valve body is extruded to piston 2 down direction to pressure-equalizing groove 3 and boss 6 simultaneously, increase pressure, hydraulic pressure that produces a directional valve port opening direction through throttle limit 9 offsets hydrodynamic force, offset the pressure that hydraulic oil went upward in the piston 2 outside, thereby make hydraulic oil follow 8 high-pressure jets of oil-out and go out, realize the efficiency of carrying hydraulic oil.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A compensable valve cartridge comprising a piston (2), characterized in that: one side of piston (2) is provided with valve end (1), and valve end (1) sets up structure as an organic whole with piston (2), the outside of piston (2) is provided with pressure-equalizing groove (3), and pressure-equalizing groove (3) and piston (2) set up structure as an organic whole, one side of piston (2) is provided with connector (5), and connector (5) and piston (2) set up structure as an organic whole, the outside of connector (5) is provided with throttle limit (9), and throttle limit (9) and connector (5) set up structure as an organic whole.

2. The compensable valve cartridge of claim 1, wherein: an orifice (10) is arranged inside the piston (2), and the orifice (10) and the piston (2) are arranged into an integral structure.

3. The compensable valve cartridge of claim 1, wherein: the inner side of the valve bottom (1) is provided with a flow limiting groove (4), and the flow limiting groove (4) and the valve bottom (1) are arranged into an integral structure.

4. The compensable valve cartridge of claim 1, wherein: one side of the connecting body (5) is provided with a boss (6), and the boss (6) and the connecting body (5) are arranged into an integral structure.

5. The compensable valve cartridge of claim 4, wherein: one side of boss (6) is provided with connector (7), and connector (7) and boss (6) set up structure as an organic whole.

6. The compensable valve cartridge of claim 5, wherein: an oil outlet (8) is formed in the connector (7), and the oil outlet (8) and the connector (7) are integrated.