CN108626460A - High-low pressure filling valve and hydraulic press - Google Patents
High-low pressure filling valve and hydraulic press Download PDFInfo
- Publication number
- CN108626460A CN108626460A CN201710950955.7A CN201710950955A CN108626460A CN 108626460 A CN108626460 A CN 108626460A CN 201710950955 A CN201710950955 A CN 201710950955A CN 108626460 A CN108626460 A CN 108626460A
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- China
- Prior art keywords
- guide sleeve
- low pressure
- filling valve
- spool
- valve body
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 24
- 238000010586 diagram Methods 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0272—Construction of housing; Use of materials therefor of lift valves valves provided with a lining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
Abstract
The invention discloses a kind of high-low pressure filling valve and hydraulic presses.High-low pressure filling valve includes：Valve body (1), it is set to the internal guide sleeve (2) of valve body (1), and the spool (3) slided along the axis of guide sleeve (2) under oil cylinder (10) driving, spool (3) is fitted close with guide sleeve (2), and valve body (1) includes：Low-pressure intake (101) and high pressure intake (102), low-pressure intake (101) is located at the bottom end of valve body (1), high pressure intake (102) is located on the side wall of valve body (1), and guide sleeve (2) includes：The first guide sleeve (202) above high pressure intake (102), and the second guide sleeve (203) below high pressure intake (102), spool (3) is slided along the axis of the first guide sleeve (202) and the second guide sleeve (203), and is fitted close with the first guide sleeve (202) and the second guide sleeve (203).The valve service life is long, and low pressure water in it and high pressure water are not easy pressure release.
Description
Technical field
The present invention relates to a kind of high-low pressure filling valve and hydraulic presses.
Background technology
Hydraulic press is the important equipment in welded pipe units, is mainly used for the inspection of steel pipe base material and weld strength, checks steel
Pipe is in authorized pressure, it is specified that there is phenomena such as No leakage, deformation in the time.Hydraulic press includes mainly four parts, respectively：Steel pipe
Transmission device, water circuit system, oil piping system and control system.Wherein, the leakproofness of the high-low pressure water filling system in water circuit system
Can be an important factor for influencing hydraulic press operations involving high pressure.
Fig. 1 is referred to, Fig. 1 is existing high-low pressure filling valve.As shown in Figure 1, existing high-low pressure water filling system includes：
Valve body 1, valve body 1 have low-pressure intake 101 and the high pressure intake 102 above low-pressure intake 101, are arranged in valve body
1 inside, and positioned at the guide sleeve 2 of the top of low-pressure intake 101, guide sleeve 2 have multiple through-holes 201, multiple through-holes 201 with
High pressure intake 102 corresponds to connection, and high pressure water is made to be full of valve body 1, and the 10 drives edge guide sleeve of oil cylinder 2 by oil piping system is axial sliding
Dynamic spool 3, and the valve seat 4 that is arranged in the inside of valve body 1, and is fixedly connected with the lower face of guide sleeve 2, valve seat it is upper
End face 401 is located at the lower section of high pressure intake 102, and the upper surface 401 of valve seat is bonded with the lower face 301 of spool to entering
Low pressure water in valve body and high-pressure water seal.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems：As shown in Figure 1, valve
3 slide downward of core hits valve seat 4, and the upper surface 401 for making valve seat is bonded low in valve body 1 to entering with the lower face 301 of spool
Press water and high-pressure water seal, it is bigger to the abrasion of valve seat 4, be easy to happen in let out, influence the sealing performance of high-low pressure filling valve,
Steel tube performance is detected to further influence hydraulic press.
Invention content
A kind of high-low pressure filling valve of present invention offer and hydraulic press, to solve the leakproofness of existing high-low pressure filling valve
The poor problem of energy.
In a first aspect, the embodiment of the present invention provides a kind of high-low pressure filling valve, including：Valve body is set in the valve body
The guide sleeve in portion, and the guide sleeve described in hydraulic oil cylinder driving lower edge axis sliding spool, the spool and the guide sleeve
It is fitted close, the valve body includes：Low-pressure intake and high pressure intake,
The low-pressure intake is located at the bottom end of the valve body, and the high pressure intake is located on the side wall of the valve body,
The guide sleeve includes：The first guide sleeve above the high pressure intake, and positioned at the high pressure into
The second guide sleeve below the mouth of a river,
The spool is slided along the axis of first guide sleeve and second guide sleeve, and is oriented to described first
Set and second guide sleeve are fitted close.
Preferably, the internal diameter of first guide sleeve and second guide sleeve is less than the internal diameter of the valve body.
Preferably, first guide sleeve includes：
Two the first beckets and first sealing ring between described two first beckets；Or
First guide sleeve includes：
Multiple first beckets and multiple first sealing rings, first becket and the first sealing ring replace from top to bottom
Distribution, and the top and bottom of first guide sleeve are first becket.
It is highly preferred that the hardness of first becket is less than the hardness of the spool.
Preferably, second guide sleeve includes：
Two the second beckets and second sealing ring between described two second beckets；Or
Second guide sleeve includes：
Multiple second beckets and multiple second sealing rings, second becket and second sealing ring are from top to bottom
It is alternately distributed, and the top and bottom of second guide sleeve are second becket.
It is highly preferred that the hardness of second becket is less than the hardness of the spool.
Preferably, the high-low pressure filling valve further includes：
The upper press cover being fixedly connected with the upper surface of the valve body, and
The lower cover being fixedly connected with the lower face of the valve body,
Wherein,
The upper press cover is used to compress first guide sleeve,
The lower cover is for compressing second guide sleeve.
Preferably, the high-low pressure filling valve further includes：Connector,
The oil cylinder has piston rod,
The piston rod is fixedly connected by the connector with the spool, to drive the spool along the guide sleeve
Axis sliding.
Preferably, the high-low pressure filling valve further includes：It is used to support the support base of oil cylinder, the support base includes first
Support base and the second support base docked with first support base, second support base are fixedly connected with the valve body,
The spool is slidably to inside the support base.
It is highly preferred that the high-low pressure filling valve further includes：
The both ends of first gusset, first gusset are fixed on first support base, and
The both ends of second gusset, second gusset are fixed on second support base.
Second aspect, the embodiment of the present invention provide a kind of water circuit system of hydraulic press, and the water circuit system includes first party
The high-low pressure filling valve that face is related to.
Specifically, the water circuit system further includes：
The low pressure water feed apparatus being connected to the low-pressure intake,
The high-pressure water inlet device being connected to the high pressure intake, and
The relief arrangement being connected to the high pressure intake.
The third aspect, the embodiment of the present invention provide a kind of hydraulic press, including the water circuit system that second aspect is related to.
Specifically, the hydraulic press further includes：
Oil piping system, the oil piping system drives the oil cylinder, so that the institute in water circuit system described in the hydraulic oil cylinder driving
The spool stated in high-low pressure filling valve is slided along the axis of the guide sleeve,
Steel pipe Transmission system is used for transmission steel pipe to be detected, and
Control system, the control system are passed for controlling the water circuit system, the oil piping system and the steel pipe
Defeated system.
The advantageous effect of technical solution provided in an embodiment of the present invention is：Low pressure water enters from low-pressure intake in valve body
Portion, at this time spool be located at the top of high pressure intake, spool is fitted close with the first guide sleeve in guide sleeve, by low pressure watertight
Envelope, until low pressure water is full of, hydraulic oil cylinder driving spool slides down to the lower end of guide sleeve along the axis of guide sleeve immediately, spool with
First guide sleeve and the second guide sleeve are fitted close, and low pressure water is sealed, and high pressure water enters from high pressure intake in valve body immediately,
Start to be pressurized.Since spool and the first guide sleeve and the second guide sleeve are fitted close, contact area is big, therefore, high-low pressure water-filling
Low pressure water and high pressure water in valve are less prone to pressure release phenomenon, and the service life of the high-low pressure filling valve is long.
Description of the drawings
Fig. 1 is existing high-low pressure filling valve；
Fig. 2 is a kind of usage state diagram of the high-low pressure filling valve of embodiment of the present invention；
Fig. 3 is another usage state diagram of the high-low pressure filling valve of embodiment of the present invention；
Fig. 4 is the schematic diagram of the water circuit system of the hydraulic press of embodiment of the present invention；
Fig. 5 is the schematic diagram of the hydraulic press of embodiment of the present invention.
Reference numeral in figure indicates respectively：
1, valve body；101, low-pressure intake；102, high pressure intake；
2, guide sleeve；
201, through-hole；
202, the first guide sleeve；2021, the first becket；2022, the first sealing ring；
203, the second guide sleeve；2031, the second becket；2032, the second sealing ring；
3, spool；301, the lower face of spool；
4, valve seat；401, the upper surface of valve seat；
5, upper press cover；
6, lower cover；
7, connector；
8, support base；
801, the first support base；802, the second support base；
901, the first gusset；902, the second gusset；
10, oil cylinder；1001, piston rod；
20, high-low pressure filling valve；
30, low pressure water feed apparatus；
40, high-pressure water inlet device；
50, relief arrangement；
100, water circuit system；
200, oil piping system；
300, control system.
Specific implementation mode
To keep technical scheme of the present invention and advantage clearer, below in conjunction with attached drawing to embodiment of the present invention make into
One step it is described in detail.
Embodiment of the present invention provides a kind of high-low pressure filling valve.Fig. 2 is referred to, Fig. 2 is the height of embodiment of the present invention
A kind of usage state diagram of low pressure water filling valve.As shown in Fig. 2, the high-low pressure filling valve of present embodiment includes：Valve body 1, setting
Guide sleeve 2 inside valve body 1, and along the spool 3 of the axis sliding of guide sleeve 2, spool 3 and guiding under the driving of oil cylinder 10
Set 2 is fitted close, and valve body 1 includes：Low-pressure intake 101 and high pressure intake 102, low-pressure intake 101 are located at the bottom of valve body 1
End, high pressure intake 102 are located on the side wall of valve body 1, and guide sleeve 2 includes：First above high pressure intake 102 is oriented to
Set 202, and the second guide sleeve 203 positioned at 102 lower section of high pressure intake, spool 3 are oriented to along the first guide sleeve 202 and second
The axis sliding of set 203, and be fitted close with the first guide sleeve 202 and the second guide sleeve 203.
The operation principle of the high-low pressure filling valve of embodiment of the present invention is：
As shown in Fig. 2, low pressure water enters from low-pressure intake 101 inside valve body 1 as shown by arrows, spool 3 is located at this time
The top of high pressure intake 102, spool 3 are fitted close with the first guide sleeve 202 in guide sleeve 2, by low pressure water-stop, until
Low pressure water is full of, and oil cylinder 10 drives spool 3 to slide down to the lower end of guide sleeve 2 along the axis of guide sleeve 2 immediately, please join at this time
See Fig. 3, Fig. 3 is another usage state diagram of the high-low pressure filling valve of embodiment of the present invention, as shown in figure 3, spool 3 and the
One guide sleeve 202 and the second guide sleeve 203 are fitted close, and low pressure water is sealed, immediately high pressure water as shown by arrows from high pressure into
The mouth of a river 102 enters in valve body 1, starts to be pressurized.Since spool 3 and the first guide sleeve 202 and the second guide sleeve 203 are fitted close,
Contact area is big, and therefore, low pressure water and high pressure water in high-low pressure filling valve are less prone to pressure release phenomenon, and the high-low pressure fills
The service life of water valve is long.
In embodiments of the present invention, the internal diameter of the first guide sleeve 202 and the second guide sleeve 203 is less than the internal diameter of valve body 1,
So that cavity is formed with spool 3 in 102 corresponding valve body 1 of high pressure intake, into the water in valve body 1 to each side of spool 3
To active force be that direction equal in magnitude is opposite, high pressure water not to can spool 3 generate lateral deviation power, to which spool 3 will not be to the
One guide sleeve 202 and the second guide sleeve 203 generate lateral deviation power, i.e., spool 3 respectively with the first guide sleeve 202 and the second guide sleeve
203 frictional force generated are that direction equal in magnitude is opposite, extend the service life of high-low pressure filling valve.
In the present embodiment, the first specific manifestation form of the first guide sleeve 202 can be as shown in Fig. 2, first
Guide sleeve 202 may include：Two the first beckets 2021 and one between two the first beckets 2021 are first close
Seal 2022 so that spool 3 and the first guide sleeve 202 are fitted close, so that the high-low pressure filling valve of present embodiment is not
Pressure release can occur.It will be appreciated by persons skilled in the art that in the first specific manifestation form of the first guide sleeve 202,
The axial width of first sealing ring 2022 is wider, when fricting movement occurs with spool 3, by friction force effect, the first sealing
Circle 2022 is easy to happen axial deformation.
In the present embodiment, second of specific manifestation form of the first guide sleeve 202 can also be the first guide sleeve
202 may include：Multiple first beckets 2021 and multiple first sealing rings 2022, the first becket 2021 and the first sealing ring
2022 are alternately distributed from top to bottom, and the top and bottom of the first guide sleeve 202 are the first becket 2021.Each first
The axial both ends of sealing ring 2022 are in close contact with the first becket 2021, and the width of the first sealing ring has less than the first
The width of first sealing ring of the body form of expression, when fricting movement occurs with spool 3, axial direction is less likely to occur the first sealing ring
Deformation.Therefore, second of specific manifestation form of the first guide sleeve 202 is better than the first specific manifestation of the first guide sleeve 202
Form.
On the basis of the specific manifestation form of above-mentioned first guide sleeve 202, the hardness of the first becket 2021 is less than valve
The hardness of core 3.Such as first becket 2021 can be made of copper metal, spool 3 can be made of stainless steel.Spool 3 with
When first becket 2021 rubs, the first becket generates abrasion, and spool hardly happens abrasion, and when repair only needs to change
First becket, maintenance cost are low.
In the present embodiment, the first specific manifestation form of the second guide sleeve 203 can be as shown in Fig. 2, second
Guide sleeve 203 includes：Two the second beckets 2031 and second sealing ring between two the second beckets 2031
2032 so that spool 3 and the second guide sleeve 203 are fitted close, so that the high-low pressure filling valve of present embodiment will not be sent out
Raw pressure release.It will be appreciated by persons skilled in the art that in such specific manifestation form of the second guide sleeve 203, second is close
The axial width of seal 2032 is wider, when fricting movement occurs with spool 3, by friction force effect, the second sealing ring 2032
It is easy to happen axial deformation.
In the present embodiment, second of specific manifestation form of the second guide sleeve 203 can be the second guide sleeve 203
Including：Multiple second beckets 2031 and multiple second sealing rings 2032, the second becket 2031 and the second sealing ring 2032 from
It is alternately distributed under, and the top and bottom of the second guide sleeve 203 are the second becket 2031.Each second sealing ring
2032 axial both ends are in close contact with the second becket 2031, and the width of the second sealing ring is less than the first specific manifestation
The width of second sealing ring of form, when fricting movement occurs with spool 3, it is not easy to axial deformation occur.Therefore, it second leads
It is better than the first specific manifestation form of the second guide sleeve 203 to second of specific manifestation form of set 203.
On the basis of the specific manifestation form of above-mentioned second guide sleeve 203, the hardness of the second becket 2031 is less than valve
The hardness of core 3.Such as second becket can be made of copper metal, spool 3 can be made of stainless steel.In spool 3 and second
When becket 2031 rubs, the second becket generates abrasion, and spool hardly happens abrasion, and when repair only needs to change second
Becket, maintenance cost are low.
The high-low pressure filling valve of present embodiment can also include：The upper press cover 5 being fixedly connected with the upper surface of valve body 1,
And the lower cover 6 being fixedly connected with the lower face of valve body 1, wherein upper press cover 5 is for compressing the first guide sleeve 202, lower cover
6 for compressing the second guide sleeve 203.First guide sleeve 202 is fixed with valve body 1 by upper press cover 5；By lower cover 6 by
Two guide sleeves 203 are fixed with valve body 1, and upper press cover 5 can also be compressed by 2022 structure of the first becket 2021 and the first sealing ring
At the first guide sleeve 202, lower cover 6 can also be compressed second is led by the second becket 2031 and the second sealing ring 2032 are constituted
To set 203.
Oil cylinder 10 and the type of attachment of spool 3 in the high-low pressure filling valve of present embodiment can be, as shown in figure 3,
The high-low pressure filling valve of present embodiment can also include：There is piston rod 1001, piston rod 1001 to pass through for connector 7, oil cylinder 10
Connector 7 is fixedly connected with spool 3, to drive spool 3 to be slided along the axis of guide sleeve 2.
The high-low pressure filling valve of present embodiment can also include：It is used to support the support base 8 of oil cylinder 10, support base 8 wraps
The second support base 802 for including the first support base 801 and being docked with the first support base 801, the second support base 802 and valve body 1 are solid
Fixed connection.First support base 801 can also be bolted to connection with the second support base 802, easy to disassemble and install.Ability
Field technique personnel are it is understood that the second support base 802 can be structure as a whole with upper press cover 5.Further, this embodiment party
The high-low pressure filling valve of formula can also include：The both ends of first gusset 901, the first gusset 901 are fixed on the first support base 801
On and the second gusset 902, the both ends of the second gusset 902 be fixed on the second support base 802.
First gusset 901 can be multiple, and be uniformly distributed along the excircle of the first support base 801, the second gusset 902
It can be multiple, and be uniformly distributed along the excircle of the second support base 802, with to the first support base 801 and the second support base
802 support force is uniform.The both ends of first gusset 901 can be respectively welded at the top and bottom of the first support base 801；
The both ends of second gusset 902 can be respectively welded at the top and bottom of the second support base 802.
Second aspect, embodiment of the present invention also provide a kind of water circuit system of hydraulic press.Fig. 4 is referred to, Fig. 4 is this hair
The schematic diagram of the water circuit system of the hydraulic press of bright embodiment.It is related to as shown in figure 4, the water circuit system includes first aspect present invention
And high-low pressure filling valve 20.
In embodiments of the present invention, as shown in figure 4, the water circuit system of present embodiment further includes：With low-pressure intake
The low pressure water feed apparatus 30 of 101 connections, the high-pressure water inlet device 40 being connected to high pressure intake 102, and and high pressure intake
The relief arrangement 50 of 102 connections.Low pressure water feed apparatus 30 to high-low pressure filling valve 20 convey low pressure water, high-pressure water inlet device 40 to
20 conveying high-pressure water of high-low pressure filling valve.High pressure water in high-low pressure filling valve 20 reaches preset pressure, and when keeping default
Between after, relief arrangement 50 open, shed the pressure of the inside of high-low pressure filling valve 20.
The third aspect, embodiment of the present invention also provide a kind of hydraulic press.Fig. 5 is referred to, Fig. 5 is embodiment of the present invention
Hydraulic press schematic diagram.As shown in figure 5, the water circuit system that the hydraulic press of present embodiment, which includes second aspect of the present invention, to be related to
100。
The hydraulic press of embodiment of the present invention further includes：Oil piping system 200,200 drive cylinder 10 of oil piping system, so that oily
Cylinder 10 drives the spool 3 in the high-low pressure filling valve 20 in water circuit system 100 to be slided along the axis of guide sleeve 2, steel pipe transmission system
System is used for transmission steel pipe to be detected and control system 300, and control system 300 is for controlling water circuit system 100, oil circuit system
System 200 and steel pipe Transmission system.Wherein, steel pipe Transmission system is not shown in Fig. 5.
The operation principle of the hydraulic press of embodiment of the present invention is：
As shown in Fig. 2, the high-low pressure filling valve 20 in water circuit system 100 is in working condition as shown in Figure 2, control system
Low pressure water in 300 control low pressure water feed apparatus 30 of system enters valve body 1 from low-pressure intake 101, and control system 300 detects valve
Body 1 is full of low pressure water, and control system 300 drives the oil cylinder 10 in oil piping system 200 so that oil cylinder 10 as shown in Figure 5 drives height
The spool 3 of low pressure water filling valve 20 slides down to the lower end of the second guide sleeve 203, seals low pressure water, and control system 300 controls height
High pressure water in low pressure water filling valve 20 enters high-low pressure filling valve 20 from high pressure intake 102, when control system 300 detects height
The pressure of high pressure water in low pressure water filling valve 20 reaches preset pressure, and when time for keeping of pressure reaches preset time, drives
Dynamic relief arrangement 50 sheds pressure, while high pressure water after supercharged examines the steel pipe to be detected in steel pipe Transmission system
It surveys, control system 300 drives the oil cylinder 10 in oil piping system 200, and high-low pressure filling valve 20 is made to be in work shape as shown in Figure 2
State completes the detection successively to steel pipe to be measured.
The above is merely for convenience of it will be understood by those skilled in the art that technical scheme of the present invention, not limiting
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection domain of invention.
Claims (14)
1. a kind of high-low pressure filling valve, including：Valve body (1) is set to the internal guide sleeve (2) of the valve body (1), and in oil
Cylinder (10) drives the spool (3) of the axis sliding of guide sleeve (2) described in lower edge, the spool (3) close with the guide sleeve (2)
Cooperation, the valve body (1) include：Low-pressure intake (101) and high pressure intake (102),
It is characterized in that,
The low-pressure intake (101) is located at the bottom end of the valve body (1), and the high pressure intake (102) is located at the valve body
(1) on side wall,
The guide sleeve (2) includes：The first guide sleeve (202) above the high pressure intake (102), and it is located at institute
The second guide sleeve (203) below high pressure intake (102) is stated,
The spool (3) along the axis of first guide sleeve (202) and second guide sleeve (203) slide, and with institute
It states the first guide sleeve (202) and second guide sleeve (203) is fitted close.
2. high-low pressure filling valve according to claim 1, which is characterized in that first guide sleeve (202) and described
The internal diameter of two guide sleeves (203) is less than the internal diameter of the valve body (1).
3. high-low pressure filling valve according to claim 1, which is characterized in that first guide sleeve (202) includes：
Two the first beckets (2021) and first sealing ring between described two first beckets (2021)
(2022)；Or
First guide sleeve (202) includes：
Multiple first beckets (2021) and multiple first sealing rings (2022), first becket (2021) and the first sealing
Circle (2022) is alternately distributed from top to bottom, and the top and bottom of first guide sleeve (202) are first metal
Ring (2021).
4. high-low pressure filling valve according to claim 3, which is characterized in that the hardness of first becket (2021) is small
Hardness in the spool (3).
5. high-low pressure filling valve according to claim 1, which is characterized in that second guide sleeve (203) includes：
Two the second beckets (2031) and second sealing ring between described two second beckets (2031)
(2032)；Or
Second guide sleeve (203) includes：
Multiple second beckets (2031) and multiple second sealing rings (2032), second becket (2031) and described second
Sealing ring (2032) is alternately distributed from top to bottom, and the top and bottom of second guide sleeve (203) are described second
Becket (2031).
6. high-low pressure filling valve according to claim 5, which is characterized in that the hardness of second becket (2031) is small
Hardness in the spool (3).
7. high-low pressure filling valve according to claim 1, which is characterized in that the high-low pressure filling valve further includes：
The upper press cover (5) being fixedly connected with the upper surface of the valve body (1), and
The lower cover (6) being fixedly connected with the lower face of the valve body (1),
Wherein,
The upper press cover (5) is used to compress first guide sleeve (202),
The lower cover (6) is for compressing second guide sleeve (203).
8. high-low pressure filling valve according to claim 1, which is characterized in that the high-low pressure filling valve further includes：Connector
(7),
The oil cylinder (10) has piston rod (1001),
The piston rod (1001) is fixedly connected by the connector (7) with the spool (3), to drive the spool (3)
Axis along the guide sleeve (2) slides.
9. high-low pressure filling valve according to claim 1, which is characterized in that the high-low pressure filling valve further includes：For
The support base (8) of support cylinder (10), the support base (8) include：First support base (801) and with it is described first support
The second support base (802) of seat (801) docking, second support base (802) are fixedly connected with the valve body (1),
The spool (3) is slidably internal to the support base (8).
10. high-low pressure filling valve according to claim 9, which is characterized in that the high-low pressure filling valve further includes：
The both ends of first gusset (901), first gusset (901) are fixed on first support base (801), and
The both ends of second gusset (902), second gusset (902) are fixed on second support base (802).
11. a kind of water circuit system of hydraulic press, which is characterized in that the water circuit system includes any one of claims 1 to 10 institute
The high-low pressure filling valve (20) stated.
12. water circuit system according to claim 11, which is characterized in that the water circuit system further includes：
The low pressure water feed apparatus (30) being connected to the low-pressure intake (101),
The high-pressure water inlet device (40) being connected to the high pressure intake (102), and
The relief arrangement (50) being connected to the high pressure intake (102).
13. a kind of hydraulic press, which is characterized in that including the water circuit system (100) described in claim 11 or 12.
14. hydraulic press according to claim 13, which is characterized in that the hydraulic press further includes：
Oil piping system (200), the oil piping system (200) drive the oil cylinder (10), so that described in the oil cylinder (10) driving
The spool (3) in the high-low pressure filling valve (20) in water circuit system (100) is slided along the axis of the guide sleeve (2),
Steel pipe Transmission system is used for transmission steel pipe to be detected, and
Control system (300), the control system (300) is for controlling the water circuit system (100), the oil piping system
(200) and the steel pipe Transmission system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950955.7A CN108626460A (en) | 2017-10-13 | 2017-10-13 | High-low pressure filling valve and hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710950955.7A CN108626460A (en) | 2017-10-13 | 2017-10-13 | High-low pressure filling valve and hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108626460A true CN108626460A (en) | 2018-10-09 |
Family
ID=63705706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710950955.7A Pending CN108626460A (en) | 2017-10-13 | 2017-10-13 | High-low pressure filling valve and hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108626460A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030094512A1 (en) * | 2001-11-16 | 2003-05-22 | Calder Limited | High pressure water control device |
| CN101603875A (en) * | 2009-07-16 | 2009-12-16 | 中国重型机械研究院有限公司 | A kind of self-sealing device for high pressure water |
| CN201575162U (en) * | 2009-11-10 | 2010-09-08 | 中国重型机械研究院有限公司 | Water filling valve of water pressure testing machine for steel pipe |
| CN205978745U (en) * | 2016-06-14 | 2017-02-22 | 上海瓦姆石油天然气管业有限公司 | A automatic water feeding device for hydraulic press withstand voltage test |
| CN207437875U (en) * | 2017-10-13 | 2018-06-01 | 中国石油天然气集团公司 | High-low pressure filling valve and hydraulic press |
-
2017
- 2017-10-13 CN CN201710950955.7A patent/CN108626460A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030094512A1 (en) * | 2001-11-16 | 2003-05-22 | Calder Limited | High pressure water control device |
| CN101603875A (en) * | 2009-07-16 | 2009-12-16 | 中国重型机械研究院有限公司 | A kind of self-sealing device for high pressure water |
| CN201575162U (en) * | 2009-11-10 | 2010-09-08 | 中国重型机械研究院有限公司 | Water filling valve of water pressure testing machine for steel pipe |
| CN205978745U (en) * | 2016-06-14 | 2017-02-22 | 上海瓦姆石油天然气管业有限公司 | A automatic water feeding device for hydraulic press withstand voltage test |
| CN207437875U (en) * | 2017-10-13 | 2018-06-01 | 中国石油天然气集团公司 | High-low pressure filling valve and hydraulic press |
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| 许贤良等: "液压缸及其设计", 31 August 2011, 国防工业出版社, pages: 95 - 96 * |
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