CN202140585U - Hydraulic press water-filled valve - Google Patents

Hydraulic press water-filled valve Download PDF

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Publication number
CN202140585U
CN202140585U CN201120206360U CN201120206360U CN202140585U CN 202140585 U CN202140585 U CN 202140585U CN 201120206360 U CN201120206360 U CN 201120206360U CN 201120206360 U CN201120206360 U CN 201120206360U CN 202140585 U CN202140585 U CN 202140585U
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CN
China
Prior art keywords
valve
cylinder
valve body
spool
valve seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201120206360U
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Chinese (zh)
Inventor
杨鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
QINGDAO HAOKUN MACHINERY MANUFACTURE Co Ltd
Original Assignee
QINGDAO HAOKUN MACHINERY MANUFACTURE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by QINGDAO HAOKUN MACHINERY MANUFACTURE Co Ltd filed Critical QINGDAO HAOKUN MACHINERY MANUFACTURE Co Ltd
Priority to CN201120206360U priority Critical patent/CN202140585U/en
Application granted granted Critical
Publication of CN202140585U publication Critical patent/CN202140585U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a hydraulic press water-filled valve comprising a valve body and a fine-columned valve core, wherein, a cylinder is further arranged at the bottom of the fine-columned valve core; the bottom of the cylinder is shaped as an inverted circular cone; a valve seat is arranged in the valve body; seals are arranged at the outer wall of the fine-columned valve core and the outer wall of the valve seat; the fine-columned valve core is in piston connection with the valve body; and the fine-columned valve core and the cylinder are formed integrally during the manufacturing process. The diameter of the cylinder is 2-3 multiples of that of the fine-columned valve core; the contact position between the valve seat and the cylinder is arranged at a right angle; a hydraulic oil cylinder is arranged at the upper part of the fine-columned valve core; a low pressure cavity is disposed on the bottom of the valve body and positioned just below the fine-columned valve core; and the valve seat is fixedly connected with the valve body. A high pressure water inlet is arranged at one side of the valve body, and a high pressure cavity is disposed at the other side. The hydraulic press water-filled valve is simple in structure, convenient in use, favorable in inosculation between the valve core and the valve seat, and tight in sealing; and the hydraulic oil cylinder is free of bearing upward forces, so that the condition in deficient power of the hydraulic oil cylinder is avoided.

Description

The hydraulic press filling valve
Technical field:
The utility model relates to the technical field of hydraulic press used in the welded tube unit, particularly a kind of hydraulic press filling valve.
Background technique:
Hydrostatic testing machine is called for short hydraulic press, and hydraulic press is a constituent element important in the welded tube unit, is mainly used in to steel duct water-filling to be measured supercharging, is used to detect the intensity and the compactness of steel pipe.In the supercharging operation, filling valve is most important parts.As shown in Figure 3, be the structural representation of hydraulic press filling valve in the existing technology.Its structure comprises valve body 2 and spool 3, and spool 3 is generally the 200mm latus rectum, is the cylindrical body of thick shape, and the outer wall of spool 3 is provided with sealer 4; Piston is connected between spool 3 and the valve body 2, is provided with valve seat 5 in the valve body 2, and valve seat 5 is solidly connected with valve body 2; Also be provided with sealer 4 between valve seat 5 and the valve body 2, a side of valve body 2 is provided with hyperbaric chamber 8, and opposite side is provided with high pressure intake 6; The bottom of valve body 2 is provided with low pressure chamber 7, is connected with water outlet on the hyperbaric chamber 8, and water outlet connects steel pipe to be measured.Low pressure chamber 7 is connected with the normal pressure water intake, low pressure chamber 7 be positioned at spool 3 under, the bottom of spool 3 is provided with the conical surface, also is provided with the conical surface on the valve seat, the conical surface of spool and the conical surface of the valve seat back that coincide forms sealer, spool 3 tops are connected with hydraulic jack 1.During the work of the hydraulic press filling valve of existing technology, water at atmospheric pressure gets into low pressure chamber along the normal pressure water intake, the hyperbaric chamber of flowing through again, water outlet, gets into and treats steel duct then; Follow hydraulic jack spool is closed downwards, require when closing downwards to bear the strength of 40 MPas and can not leak, the strength of closing is downwards mainly leaned on hydraulic jack; And hydraulic jack is generally the 6-8 ton, and after closing, the high pressure intake gets into high pressure water; Because of the conical surface of spool and the conical surface of valve seat all are to make moulding in advance, are difficult to reach perfectly and coincide, when hyperbaric chamber pressure is very high; The conical surface produces power upwards and horizontal power, and the power that makes progress is offset the power of a part of hydraulic jack again, and horizontal power very easily causes the conical surface of spool and the conical surface of valve seat to coincide not tight again; Cause leaking, cause hydraulic jack to be short of power, make steel pipe hydrostatic testing failure to be measured.In view of this technical problem, press for and occur a kind of simple in structurely, easy to use, spool and valve seat coincide, sealing sternly, hydraulic jack does not bear the power that makes progress, and avoids producing a kind of hydraulic press filling valve of the situation that hydraulic jack is short of power.
Summary of the invention:
The purpose of the utility model is to overcome the shortcoming that exists in the existing technology, provides a kind of simple in structure, easy to use; Spool and valve seat coincide; Sealing is tight, and hydraulic jack does not bear power upwards, avoids producing a kind of hydraulic press filling valve of the situation that hydraulic jack is short of power.
To achieve these goals, the utility model provides a kind of hydraulic press filling valve, comprises valve body and buttress shaft spool; Wherein, the bottom of said buttress shaft spool further is provided with cylinder, and the bottom of said cylinder is inverted round platform; Be provided with valve seat in the said valve body; The outer wall of said buttress shaft spool and the outer wall of said valve seat are provided with sealer, and piston is connected between said buttress shaft spool and the said valve body, and said buttress shaft spool and said cylinder are one-body molded during fabrication.
The diameter of said cylinder be said buttress shaft spool diameter 2-3 doubly; The contact position of said valve seat and said cylinder is rectangular; The top of said buttress shaft spool is provided with hydraulic jack; The bottom of said valve body is provided with low pressure chamber, said low pressure chamber be positioned at said buttress shaft spool under, be fixedly connected between said valve seat and the said valve body.
One side of said valve body is provided with the high pressure intake; Opposite side is provided with hyperbaric chamber, and said hyperbaric chamber is provided with water outlet, and said low pressure chamber is provided with the normal pressure water intake; Said hyperbaric chamber, said low pressure chamber, said high pressure intake and said valve body are one-body molded during fabrication.
Buttress shaft spool latus rectum is 100mm, and the latus rectum of the cylinder of buttress shaft spool bottom is 200mm
The advantage of the utility model is: simple in structure, easy to use, spool and valve seat coincide, and sealing is tight, and hydraulic jack does not bear power upwards, avoids producing hydraulic jack and is short of power.Specific as follows:
1, hydraulic jack drive buttress shaft spool moves downward, and under the effect of hydraulic jack, the cylinder of buttress shaft spool bottom contacts with the valve seat in the valve body; Right angle stress deformation on the valve seat; Make the cylinder of valve seat and buttress shaft spool bottom form self-coincideing, match result is good, seals tight.
2, buttress shaft spool latus rectum is 100mm, and the bottom is provided with cylinder, and the latus rectum of cylinder is 200mm; The oneself coincide after cylinder and the valve seat deformation, and after the buttress shaft spool was closed downwards, the ring surface on cylinder top bore the downward pressure of high pressure water; The power that high pressure water is downward and the pressure of hydraulic jack and compress operation jointly downwards are so high pressure water pressure is big more; The buttress shaft seal spool is tight more, and good sealing effect is non-leakage.
Description of drawings:
Fig. 1 is the structural representation of the utility model hydraulic press filling valve.
Fig. 2 gets the partial approach figure of part for Fig. 1 centre circle.
Fig. 3 is the structural representation of hydraulic press filling valve in the existing technology.
The accompanying drawing sign:
1, hydraulic jack 2, valve body 3, spool
4, sealer 5, valve seat 6, high pressure intake
7, low pressure chamber 8, hyperbaric chamber 9, buttress shaft spool
10, cylinder
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described.
As shown in Figure 3, be the structural representation of hydraulic press filling valve in the existing technology.Its structure comprises valve body 2 and spool 3, and spool 3 is generally the 200mm latus rectum, is the cylindrical body of thick shape, and the outer wall of spool 3 is provided with sealer 4; Piston is connected between spool 3 and the valve body 2, is provided with valve seat 5 in the valve body 2, and valve seat 5 is solidly connected with valve body 2; Also be provided with sealer 4 between valve seat 5 and the valve body 2, a side of valve body 2 is provided with hyperbaric chamber 8, and opposite side is provided with high pressure intake 6; The bottom of valve body 2 is provided with low pressure chamber 7, is connected with water outlet on the hyperbaric chamber 8, and water outlet connects steel pipe to be measured.Low pressure chamber 7 is connected with the normal pressure water intake, low pressure chamber 7 be positioned at spool 3 under, the bottom of spool 3 is provided with the conical surface, also is provided with the conical surface on the valve seat, the conical surface of spool and the conical surface of the valve seat back that coincide forms sealer, spool 3 tops are connected with hydraulic jack 1.During the work of the hydraulic press filling valve of existing technology, water at atmospheric pressure gets into low pressure chamber along the normal pressure water intake, the hyperbaric chamber of flowing through again, water outlet, gets into and treats steel duct then; Follow hydraulic jack spool is closed downwards, require when closing downwards to bear the strength of 40 MPas and can not leak, the strength of closing is downwards mainly leaned on hydraulic jack; And hydraulic jack is generally the 6-8 ton, and after closing, the high pressure intake gets into high pressure water; Because of the conical surface of spool and the conical surface of valve seat all are to make moulding in advance, are difficult to reach perfectly and coincide, when hyperbaric chamber pressure is very high; The conical surface produces power upwards and horizontal power, and the power that makes progress is offset the power of a part of hydraulic jack again, and horizontal power very easily causes the conical surface of spool and the conical surface of valve seat to coincide not tight again; Cause leaking, cause hydraulic jack to be short of power, make steel pipe hydrostatic testing failure to be measured.
For solving the problems of the technologies described above, the utility model is made structure innovation and improvement to existing technology, and like Fig. 1-shown in Figure 2, Fig. 1 is the structural representation of the utility model hydraulic press filling valve.Fig. 2 gets the partial approach figure of part for Fig. 1 centre circle.The utility model comprises valve body 2 and buttress shaft spool 9; Wherein, the bottom of buttress shaft spool 9 further is provided with cylinder 10, and the bottom of cylinder 10 is inverted round platform; Be provided with valve seat 5 in the valve body 2; The outer wall of the outer wall of buttress shaft spool 9 and valve seat 5 is provided with sealer 4, and piston is connected between buttress shaft spool 9 and the valve body 2, and buttress shaft spool 9 is one-body molded during fabrication with cylinder 10.The diameter of cylinder 10 be buttress shaft spool 9 diameter 2-3 doubly; Valve seat 5 is rectangular with the contact position of cylinder 10, and the top of buttress shaft spool 9 is provided with hydraulic jack 1, and the bottom of valve body 2 is provided with low pressure chamber 7; Low pressure chamber 7 be positioned at buttress shaft spool 9 under, be fixedly connected between valve seat 5 and the valve body 2.One side of valve body 2 is provided with high pressure intake 6, and opposite side is provided with hyperbaric chamber 8, and hyperbaric chamber 8 is provided with water outlet, and low pressure chamber 7 is provided with the normal pressure water intake, hyperbaric chamber 8, and low pressure chamber 7, high pressure intake 6 and valve body 2 are one-body molded during fabrication.Buttress shaft spool 9 latus rectums are 100mm, and the latus rectum of the cylinder 10 of buttress shaft spool bottom is 200mm
When the utility model is closed downwards; Hydraulic jack drives the buttress shaft spool and moves downward, and under the effect of hydraulic jack, the cylinder of buttress shaft spool bottom contacts with the valve seat in the valve body; Right angle stress deformation on the valve seat; Make the cylinder of valve seat and buttress shaft spool bottom form self-coincideing, match result is good, seals tight.Buttress shaft spool latus rectum is 100mm, and the bottom is provided with cylinder, and the latus rectum of cylinder is 200mm; The oneself coincide after cylinder and the valve seat deformation, and after the buttress shaft spool was closed downwards, the ring surface on cylinder top bore the downward pressure of high pressure water; The power that high pressure water is downward and the pressure of hydraulic jack and compress operation jointly downwards are so high pressure water pressure is big more; The buttress shaft seal spool is tight more, and good sealing effect is non-leakage.

Claims (3)

1. a hydraulic press filling valve comprises valve body and buttress shaft spool, it is characterized in that; The bottom of said buttress shaft spool further is provided with cylinder; The bottom of said cylinder is inverted round platform, is provided with valve seat in the said valve body, and the outer wall of said buttress shaft spool and the outer wall of said valve seat are provided with sealer; Piston is connected between said buttress shaft spool and the said valve body, and said buttress shaft spool and said cylinder are one-body molded during fabrication.
2. according to the said hydraulic press filling valve of claim 1; It is characterized in that, the diameter of said cylinder be said buttress shaft spool diameter 2-3 doubly, the contact position of said valve seat and said cylinder is rectangular; The top of said buttress shaft spool is provided with hydraulic jack; The bottom of said valve body is provided with low pressure chamber, said low pressure chamber be positioned at said buttress shaft spool under, be fixedly connected between said valve seat and the said valve body.
3. according to the said hydraulic press filling valve of claim 2; It is characterized in that a side of said valve body is provided with the high pressure intake, opposite side is provided with hyperbaric chamber; Said hyperbaric chamber is provided with water outlet; Said low pressure chamber is provided with the normal pressure water intake, said hyperbaric chamber, and said low pressure chamber, said high pressure intake and said valve body are one-body molded during fabrication.
CN201120206360U 2011-06-10 2011-06-10 Hydraulic press water-filled valve Expired - Fee Related CN202140585U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120206360U CN202140585U (en) 2011-06-10 2011-06-10 Hydraulic press water-filled valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120206360U CN202140585U (en) 2011-06-10 2011-06-10 Hydraulic press water-filled valve

Publications (1)

Publication Number Publication Date
CN202140585U true CN202140585U (en) 2012-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120206360U Expired - Fee Related CN202140585U (en) 2011-06-10 2011-06-10 Hydraulic press water-filled valve

Country Status (1)

Country Link
CN (1) CN202140585U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105954111A (en) * 2016-07-01 2016-09-21 中国重型机械研究院股份公司 Multifunctional liquid pressurizing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105954111A (en) * 2016-07-01 2016-09-21 中国重型机械研究院股份公司 Multifunctional liquid pressurizing device

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120208

Termination date: 20140610