CN113719487B - Low-temperature hydraulic combined valve terminal - Google Patents
Low-temperature hydraulic combined valve terminal Download PDFInfo
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- CN113719487B CN113719487B CN202110826958.6A CN202110826958A CN113719487B CN 113719487 B CN113719487 B CN 113719487B CN 202110826958 A CN202110826958 A CN 202110826958A CN 113719487 B CN113719487 B CN 113719487B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
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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
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/006—Modular components with multiple uses, e.g. kits for either normally-open or normally-closed valves, interchangeable or reprogrammable manifolds
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to a hydraulic combination valve terminal, which comprises: the valve comprises a first valve body, wherein a first cavity with a horizontal trend is arranged in the middle of the first valve body, a first control rod is installed in the first cavity, two side end faces of the first control rod reach a first spring is arranged between the two side end faces of the first cavity, a first oil inlet channel is arranged between the top of the bottom of the first valve body, the first oil inlet channel is communicated with the first cavity and a second valve body, and a second oil inlet channel is arranged between the bottom of the second valve body and the top of the second valve body. The hydraulic combined valve island is formed by assembling the first valve body, the second valve body and the third valve body of the three parts, has a reliable structure, and can ensure the accuracy and stability of the pressure value of the hydraulic valve.
Description
Technical Field
The invention relates to a low-temperature hydraulic valve, in particular to a hydraulic combined valve island.
Background
The hydraulic valve island essentially belongs to a new type of electro-hydraulic integrated control component. Typical materials for the hydraulic valve island include titanium alloy (TC4), aluminum alloy (AlSi10Mg), stainless steel (316L), die steel (1.2709), and the like. The best choice based on product density considerations is to use a lightweight aluminum alloy, which is particularly suitable for military equipment transmission systems requiring weight reduction as an aluminum alloy hydraulic valve island for small hydraulic integrated system applications, thereby providing a stable hydraulic pressure source. With the great demand of a plurality of industries, military industry and other fields for the light low-temperature valve island, a hydraulic valve island product with stable quality and reliable structure under a low-temperature working condition is needed to be provided. However, the existing aluminum alloy hydraulic valve still has certain difficulty in meeting the extreme working performance, especially under the low-temperature working condition (the environmental temperature is lower than-20 ℃ or even lower than-40 ℃).
Specifically, the existing aluminum alloy hydraulic valve island has the following defects: when the motor works in a low-temperature environment (generally, the environment temperature is lower than-20 ℃), the response is slow (for example, the reaction is delayed after the motor is started and the pressure begins to rise and is unstable after about 2-3s after the motor is started); the valve island is easy to leak (at the moment, the elasticity of the sealing element is reduced, for example, the low temperature resistance limit of common nitrile butadiene rubber NBR is generally-20 ℃); the flow error measured by the flow sensor under the low-temperature environment is large (the electric reaction of the coil is delayed); the oil becomes thick at low temperature, so that the pumped flow is low, and the set pressure is unstable. In addition, because the hydraulic valve needs to bear high and low temperature conversion, the thermal expansion and the cold contraction can cause the deformation of the element, for example, the size change of a valve element part of a valve body easily causes the change of the size (such as a fit clearance) which is correlated between the part and the part, and the performance (such as leakage, valve element blocking and the like) of the whole hydraulic element is influenced.
Therefore, in order to overcome the above technical problems, it is necessary to design an aluminum alloy hydraulic valve island suitable for low temperature working environment, which overcomes or improves the drawbacks in the prior art on the basis of light weight, especially ensures the accuracy and stability of pressure value in low temperature environment.
Disclosure of Invention
The invention provides a hydraulic combination valve island, which aims to solve or improve the technical problems in the prior art.
The technical scheme of the invention is that the hydraulic combined valve island comprises: the valve comprises a first valve body, wherein a first cavity with a horizontal trend is arranged in the middle of the first valve body, a first control rod is installed in the first cavity, first springs are arranged between two side end faces of the first control rod and two side end faces of the first cavity, a first oil inlet channel is arranged between the top of the bottom of the first valve body and communicated with the first cavity and a second valve body, a second oil inlet channel is arranged between the bottom and the top of the second valve body and communicated with the third cavity with the horizontal trend, a third control rod is installed in the third cavity, an electromagnetic valve is installed on one side face of the third valve body, a push rod in the middle of the electromagnetic valve pushes the third control rod to move linearly, and a third oil inlet channel communicated with the third cavity is arranged at the bottom of the third valve body, the bottom and the top of the second valve body are respectively and fixedly connected with the top of the first valve body and the bottom of the third valve body, and the first oil inlet channel, the second oil inlet channel and the third oil inlet channel are communicated with each other.
Further, both sides in the first cavity are equipped with middle part open-ended first stopper, the both ends of first control lever be provided with the lateral surface of first stopper contacts spacing first control lever bulge mutually, be equipped with the control oil duct in the first valve body, the opening intercommunication has been seted up respectively to the upper portion both sides of control oil duct the top of first cavity, the opening intercommunication has been seted up respectively to the lower part both sides of control oil duct the bottom of first cavity, the lower part both sides downwardly extending of control oil duct to a pair of control hydraulic fluid port of first valve body bottom, the oil pressure that is full of the hydraulic oil production in the control oil duct promotes first control lever bulge linear movement.
Further, the middle part of first control lever outwards is equipped with a plurality of second control lever bulges, mid portion in the first cavity is equipped with a plurality of second stoppers of middle part open-ended, wherein, the lateral surface of second stopper with the medial surface of second control lever bulge restricts mutually, the second stopper reaches the separation of second control lever bulge first oil feed passageway reaches the control oil duct.
Furthermore, a second cavity with a horizontal direction is arranged in the middle of the second valve body, an opening of the second cavity is arranged on the outer side surface of the second valve body, a second oil outlet channel is arranged between the tops of the bottoms of the second valve bodies and communicated with the second cavity, a second control rod assembly is inserted in the second cavity, the end part of the inner side of the second control rod assembly adjusts and limits the flow of the hydraulic oil passing through the second oil outlet channel, a first oil outlet passage communicating from the top of the first valve body to the top of the first cavity, an opening is formed in the first cavity above the first spring and communicated with the first oil outlet channel, a third oil outlet channel communicated with the third cavity is formed in the bottom of the third valve body, wherein the first oil outlet channel, the second oil outlet channel and the third oil outlet channel are communicated with each other.
Furthermore, the tail end of the inner side of the second cavity is provided with an adjusting limiting block with an opening in the middle, the second control rod assembly comprises an installation kit, a second spring, a current-limiting lantern ring, a current-limiting column and an adjusting screw, the outer wall of the front half part of the installation kit is provided with external threads which are mutually connected with internal threads of the second cavity close to a side outlet, the second spring and the current-limiting lantern ring are installed on the front half part of the interior of the installation kit from inside to outside, the end surfaces of the two sides of the second spring are respectively mutually supported with the inner side wall of the front half part of the installation kit and the outer side wall of the current-limiting lantern ring, the outer side of the current-limiting lantern ring is provided with a current-limiting lug, the current-limiting lantern ring is uniformly provided with a current-limiting hole, the current-limiting column is inserted into the middle part of the installation kit, the current-limiting column penetrates through the middle part of the second spring, the outer wall of the front section of the current-limiting column is provided with external threads which are mutually connected with the inner threads of the current-limiting lantern ring, the external screw thread of adjusting screw and the inner wall interconnect of installation suit latter half, the anterior segment lateral wall of current-limiting post shelters from the part and does not shelter from the restricted aperture to control hydraulic oil and flow through the flow in restricted aperture, wherein, the lateral wall of current-limiting lug with the lateral wall of adjusting the stopper contacts spacingly each other.
Furthermore, a third limiting block with an opening in the middle is arranged on two sides in the third cavity, a third control rod protruding portion which is in contact with and limited by the outer side face of the third limiting block is arranged at two ends of the third control rod, and a third cover body assembly is installed in the third cavity in the direction opposite to the electromagnetic valve.
Further, the third cover assembly comprises a third cover, a third spring and a third ring, wherein an external thread is arranged on the outer wall of the front part of the third cover and is connected with an internal thread of the third cavity close to the side outlet, the third spring and the third ring are arranged on the front half part inside the third cover from inside to outside, the end surfaces on two sides of the third spring are respectively abutted against the inner side wall of the front half part of the mounting sleeve and the outer side wall of the third ring, and one end of the third control rod is inserted into the middle opening of the third ring to move linearly.
Further, a first oil outlet channel above the first spring is divided into a first-stage oil outlet channel, a second-stage oil outlet channel and a third-stage oil outlet channel, the first-stage oil outlet channel is located above the first spring, an opening of the third-stage oil outlet channel is located at the top of the first valve body, two ends of the second-stage oil outlet channel are communicated with one end of the first-stage oil outlet channel and one end of the third-stage oil outlet channel, the first cavity is provided with a first cavity axis, the first-stage oil outlet channel is provided with a first axis, the second-stage oil outlet channel is provided with a second axis, the third-stage oil outlet channel is provided with a third axis, the first axis is perpendicular to the first cavity axis, and the first axis and the third axis are perpendicular to the second axis.
Further, the both sides face of first valve body is through the first side valve body of a plurality of bolt fastening, first spring has been seted up to the inboard of first side valve body and has been held the chamber, first spring holds chamber and first cavity intercommunication, first spring holds chamber installation partly first spring, the side of first valve body is equipped with the first sealing washer of round, the medial surface of first side valve body with first sealing washer suppression contact.
Furthermore, the outer wall of the flow limiting column is provided with a flow limiting column sealing ring around the circumference, the outer ring of the flow limiting column sealing ring is in abutting sealing connection with the inner wall of the middle hole of the flow limiting sleeve ring, and a flow limiting sleeve ring sealing ring is arranged between the end surface of the inner side of the flow limiting sleeve ring and the side surface in the second cavity in a pressing mode.
Furthermore, hydrogenated nitrile rubber HNBR is preferably used for the hydraulic valve sealing element disclosed by the invention, and the low-temperature (-50 ℃) resistance is excellent.
The invention has the beneficial effects that: the first valve body, the second valve body and the third valve body of the three parts are assembled into a combined hydraulic combined valve island, and the structure is reliable. The hydraulic oil enters from the first oil inlet channel through the oil inlet at the bottom of the first valve body, passes through the middle position in the first cavity, then passes through the first oil inlet channel above the first cavity, passes through the second oil inlet channel in the second valve body, and finally passes through the second oil inlet channel in the third valve body. In addition, a third control rod in the third valve body controls and communicates the third oil outlet channel, the second oil outlet channel and the first oil outlet channel, and hydraulic oil stably outputs the hydraulic valve island through the oil outlet channel to supply hydraulic oil with certain stable pressure to other hydraulic equipment. The three independent valve body mechanisms are provided with corresponding control parts to accurately adjust the pressure of the hydraulic oil, so that the pressure stability in a low-temperature environment is improved, and the performance of a hydraulic element is ensured.
Drawings
Fig. 1 is a front view of an embodiment according to the present invention.
Fig. 2 is a bottom view of an embodiment in accordance with the invention.
Figure 3 is a cross-sectional view of the AA of figure 2, in accordance with an embodiment of the present invention.
Fig. 4 is a cross-sectional view of a first valve body according to an embodiment of the present invention.
Fig. 5 is a cross-sectional view of a second valve body according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view of a third valve body according to an embodiment of the present invention.
Fig. 7 is a cross-sectional view of the BB section of fig. 2, in accordance with an embodiment of the present invention.
Fig. 8 is a cross-sectional view of the FF portion of fig. 2, according to an embodiment of the invention.
FIG. 9 is a detailed schematic view of a first control lever according to an embodiment of the present invention.
FIG. 10 is a detailed view of a third lever engaged with a third cover assembly according to an embodiment of the present invention.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the descriptions of upper, lower, left, right, top, bottom, etc. used in the present invention are only relative to the positional relationship of the components of the present invention with respect to each other in the drawings.
Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.
Referring to fig. 1-8, in some embodiments, a hydraulic compound valve island according to the present disclosure includes: a first valve body 1000, a second valve body 2000, and a third valve body 3000.
Referring to fig. 8, a first oil inlet passage 1200 is provided between the bottom and the top of the first valve body 1000; a second oil inlet passage 2200 is formed between the bottom and the top of the second valve body 2000; a third oil feed passage 3200 is provided between the bottom and the top of the third valve body 3000. The first oil inlet passage 1200, the second oil inlet passage 2200, and the third oil inlet passage 3200 are communicated with each other.
A first oil outlet channel 1400 is formed between the top of the first valve body 1000 and the top of the first cavity 1100, a second oil outlet channel 2400 is formed between the top of the bottom of the second valve body 2000, and a third oil outlet channel 3400 communicated with the third cavity 3100 is formed at the bottom of the third valve body 3000. The first oil outlet passage 1400, the second oil outlet passage 2400, and the third oil outlet passage 3400 are communicated with each other.
According to the hydraulic combination valve island, the first valve body 1000, the second valve body 2000 and the third valve body 3000 are mutually fixed through bolts, and oil inlet channels, control parts and the like are arranged in the valve bodies to control hydraulic oil. The structure of the various components and their manner of operation are described below by way of a number of embodiments.
First valve body
Referring to fig. 1 to 4 and 7 to 8, the first valve body 1000 mainly uses a combination material of titanium alloy, aluminum alloy, stainless steel, die steel, etc. which are relatively common materials, to replace the existing cast iron material, so that the valve body of the present invention has better light weight. A first cavity 1100 running horizontally is arranged in the middle of the first valve body 1000, and a first control rod 1110 is installed in the first cavity 1100. The first control lever may be controlled to be linearly moved left and right by the hydraulic oil input thereto.
Referring to the longitudinal cross-sectional view of part AA in fig. 2, a first spring 1120 is disposed between both side end surfaces of the first lever 1110 and both side end surfaces of the first cavity 1100, a first oil inlet passage 1200 is disposed between the top of the bottom of the first valve body 1000, and the first oil inlet passage 1200 communicates with the first cavity 1100.
Referring to fig. 4, first stoppers 1130 having an open middle are disposed at both sides of the first cavity 1100, and first lever protrusions 1111 contacting and restricting outer surfaces of the first stoppers 1130 are disposed at both ends of the first lever 1110.
Referring to fig. 4 in conjunction with fig. 9, a plurality of second lever protrusions 1112 are outwardly formed at a middle portion of the first lever 1110, and a plurality of second stoppers 1140 having an open middle portion are formed at a middle portion of the first cavity 1100. The outer side surface of the second stopper 1140 and the inner side surface of the second control rod protrusion 1112 are limited to each other, and the second stopper 1140 and the second control rod protrusion 1112 block the first oil inlet passage 1200 and the control oil passage 1300. In the figure, two pairs of symmetrical second control rod protrusions 1112 are arranged on the middle portion of the first control rod 1110 towards two sides, and the plurality of second control rod protrusions 1112 on the first control rod 1110 in the first cavity 1100 are matched with the plurality of second limiting blocks 1140 to separate different hydraulic oil conveying channels. The hydraulic oil enters from the first oil inlet channel through the oil inlet at the bottom of the first valve body, passes through the middle position in the first cavity, and then passes through the first oil inlet channel above the first cavity.
Referring to fig. 2 in combination with the longitudinal cross-sectional view of the BB portion of fig. 7, a control oil passage 1300 is disposed in the first valve body 1000, two sides of the upper portion of the control oil passage 1300 are respectively opened to communicate with the top of the first cavity 1100, two sides of the lower portion of the control oil passage 1300 are respectively opened to communicate with the bottom of the first cavity 1100, and two sides of the lower portion of the control oil passage 1300 extend downward to a pair of control oil ports 1310 at the bottom of the first valve body 1000. And hydraulic oil is input from one of the control oil ports, and the other control oil port outputs the hydraulic oil. The first control lever protrusion 1111 is pushed to linearly move by the oil pressure generated when the control oil passage 1300 is filled with the hydraulic oil. For example, as shown in fig. 7, the right control port 1310 inputs hydraulic oil, the first control rod 1110 near the right side pushes the first control rod protrusion 1111 to push to the right side, so that the first oil outlet channel 1400 above the first spring 1120 is conducted, the hydraulic oil of the first oil outlet channel 1400 is communicated with the control oil passage 1300, and the control port 1310 releases the pressure to output the hydraulic oil.
Referring to fig. 4, the first oil outlet channel 1400 is specifically distributed at a specific position inside the first valve body 1000: the first oil outlet channel 1400 is formed between the top of the first valve body 1000 and the top of the first cavity 1100, and the first cavity 1100 above the first spring 1120 is opened to communicate with the first oil outlet channel 1400.
The first oil outlet passage 1400 above the first spring 1120 is divided into a first-stage oil outlet passage 1410, a second-stage oil outlet passage 1420, and a third-stage oil outlet passage 1430. The oil outlet channels of the following three sections are formed by the following steps: the first-stage oil outlet passage 1410 is located above the first spring 1120, the opening of the third-stage oil outlet passage 1430 is located at the top of the first valve body 1000, and both ends of the second-stage oil outlet passage 1420 communicate with one end of the first-stage oil outlet passage 1410 and one end of the third-stage oil outlet passage 1430. The first cavity 1100 has a first cavity axis, the first stage oil outlet channel 1410 has a first axis, the second stage oil outlet channel 1420 has a second axis, the third stage oil outlet channel 1430 has a third axis, the first axis is perpendicular to the first cavity 1100 axis, and the first axis and the third axis are perpendicular to the second axis. After the hydraulic oil flows through the upper three sections of oil outlet channels which are perpendicular to each other, the oil pressure tends to be stable and is more stable along with the pressure relief of the control oil port.
Referring to fig. 4, in some embodiments, the first side valve body 1500 is fixed to both side surfaces of the first valve body 1000 by a plurality of bolts, a first spring receiving chamber 1510 is formed inside the first side valve body 1500, the first spring receiving chamber 1510 communicates with the first cavity 1100, and a portion of the first spring 1120 is installed in the first spring receiving chamber 1510. The operation under some special operating mode environment of low temperature, when the toughness of first spring changed to some extent, the user can unpack first side valve body apart through dismantling the bolt, changes the better first spring of toughness in first spring accommodation chamber. In order to enable the first valve body and the first side valve body to be connected in a better sealing and fastening mode, a circle of first sealing ring 1600 is arranged on the side face of the first valve body 1000, and the end face of the inner side of the first side valve body 1500 is in pressing contact with the first sealing ring 1600.
Second valve body
Referring to the second valve body 2000 of fig. 3, 5 and 8, a second cavity 2100 is formed in the middle of the second valve body 2000, an opening of the second cavity 2100 is opened on the outer side surface of the second valve body 2000, a second oil outlet channel 2400 is formed between the top portions of the bottom of the second valve body 2000, and the second oil outlet channel 2400 is communicated with the second cavity 2100.
The bottom and top of the second valve body 2000 are fixedly connected to the top of the first valve body 1000 and the bottom of the third valve body 3000, respectively.
Referring to fig. 5, the second control lever assembly 2500 is inserted into the second cavity 2100, and an inner end of the second control lever assembly 2500 regulates and limits a flow rate of the hydraulic oil passing through the second oil outlet passage 2400. The hydraulic oil in the second oil outlet channel 2400 is delivered from the hydraulic oil 3400 in the third oil outlet channel, the hydraulic oil pressure delivered to the 1400 first oil outlet channel can be adjusted at the position, and the flow of the hydraulic oil passing through the second oil outlet channel 2400 is adjusted and limited by the end part of the inner side of the second control rod assembly 2500, so that the effect of flexibly controlling the constant-pressure hydraulic oil is achieved.
Specifically, referring to FIG. 5, the inner end of the second cavity 2100 is provided with an open-centered adjustment stop 2110.
Referring to fig. 10, the second lever assembly 2500 includes a mounting sleeve 2510, a second spring 2520, a restrictor collar 2530, a restrictor post 2540 and an adjustment screw 2550.
The second lever assembly 2500 is specifically configured as follows: the outer wall of the front half of the installation kit 2510 is provided with external threads to be connected with the internal threads of the second cavity 2100 near the side outlet, the second spring 2520 and the flow-limiting collar 2530 are installed on the inner front half of the installation kit 2510 from inside to outside, and the end surfaces of the two sides of the second spring 2520 respectively abut against the inner side wall of the front half of the installation kit 2510 and the outer side wall of the flow-limiting collar 2530. The outside of current-limiting lantern ring 2530 is equipped with current-limiting lug 2531, current-limiting hole 2532 has evenly been seted up on the current-limiting lantern ring 2530, current-limiting post 2540 inserts the middle part of installation external member 2510, current-limiting post 2540 passes the middle part of second spring 2520, current-limiting post 2540's anterior segment outer wall is equipped with the internal thread interconnect of external screw thread and current-limiting lantern ring 2530 inner wall, adjusting screw 2550's external screw thread and the inner wall interconnect of installation external member 2510 latter half, current-limiting post 2540's anterior segment lateral wall shelters from the part and does not shelter from current-limiting hole 2532, flow through current-limiting hole 2532 with control hydraulic oil. The outer side wall of the flow limiting projection 2531 and the outer side wall of the adjusting limit block 2110 are contacted with each other for limiting. As shown in fig. 5, when the second control lever assembly 2500 and the second valve body 2000 are assembled, an operator first adjusts the position of the wall of the flow restricting post 2540, which covers the size of the flow restricting hole 2532, so as to control the flow rate of the hydraulic oil passing through the flow restricting hole 2532, and then uses the adjusting screw 2550 to cooperate with the mounting sleeve 2510 to be in threaded connection, so that the adjusting screw 2550 contacts the end of the flow restricting post 2540 to fix the position of the flow restricting post, and thus the size of the flow restricting hole 2532 is fixed at an accurate value.
To increase the seal between the flow restrictor post and the restrictor collar, refer to fig. 5: the outer wall of the flow-limiting column 2540 is provided with a flow-limiting column sealing ring 2541 around the circumference, and the outer ring of the flow-limiting column sealing ring 2541 is in abutting and sealing connection with the inner wall of the middle hole of the flow-limiting sleeve ring 2530.
To increase the seal between the restrictor collar and the second valve body, refer to fig. 5: a restrictor collar seal 2533 is compressed between the inner end surface of the restrictor collar 2530 and the side surface of the second cavity 2100.
Third valve body
Referring to the third valve body 3000 of fig. 1 to 3, 6 and 8, a third cavity 3100 extending horizontally is disposed through the middle of the third valve body 3000, a third control rod 3110 is installed in the third cavity 3100, a solenoid valve 3500 is installed at one side of the third valve body 3000, a push rod at the middle of the solenoid valve 3500 pushes the third control rod 3110 to move linearly, and a third oil inlet passage 3200 communicating with the third cavity 3100 is opened at the bottom of the third valve body 3000.
Referring to fig. 6 in conjunction with fig. 10, a third cap assembly 3300 is installed in the third cavity 3100 in a direction opposite to the solenoid valve 3500. The third cover assembly is used for blocking sealing oil in the third cavity from leaking, meanwhile, the third cover assembly can be detached, and one more solenoid valve or other hydraulic assemblies are additionally arranged to control the third control rod.
Referring to the third cap assembly 3300 of fig. 10, the third cap assembly 3300 includes a third cap 3310, a third spring 3320, and a third ring member 3330.
With reference to fig. 3, the third cap assembly 3300 is assembled with the third valve body 3000: the outer wall of the front portion of the third cap 3310 is provided with external threads that are connected to internal threads of the third cavity 3100 near the side outlet, the front portion of the third cap 3310 is provided with a third spring 3320 and a third ring 3330 from inside to outside, and the end surfaces of the third spring 3320 at both sides are respectively abutted against the inner sidewall of the front portion of the mounting sleeve 2510 and the outer sidewall of the third ring 3330. One end of the third lever 3110 is inserted into the middle opening of the third ring member 3330 to move linearly. The front end of the third cap 3310 is fixedly connected to the third valve body 3000 by a screw, and the third ring 3330 is engaged with a structure formed by a third spring and abuts against one end of the third lever 3110.
The present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present disclosure should be included in the scope of the present disclosure as long as the technical effects of the present invention are achieved by the same means. Are intended to fall within the scope of the present invention. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (8)
1. A cryogenic hydraulic combiner valve island, comprising:
the valve comprises a first valve body (1000), a first cavity (1100) with a horizontal trend is arranged in the middle of the first valve body (1000), a first control rod (1110) is installed in the first cavity (1100), a first spring (1120) is arranged between the end faces of the two sides of the first control rod (1110) and the end faces of the two sides of the first cavity (1100), a first oil inlet channel (1200) is arranged between the top of the bottom of the first valve body (1000), and the first oil inlet channel (1200) is communicated with the first cavity (1100),
a second valve body (2000), a second oil inlet channel (2200) is arranged between the bottom and the top of the second valve body (2000),
a third valve body (3000), a third cavity (3100) with a horizontal trend is arranged in the middle of the third valve body (3000) in a penetrating mode, a third control rod (3110) is installed in the third cavity (3100), an electromagnetic valve (3500) is installed on one side face of the third valve body (3000), a push rod in the middle of the electromagnetic valve (3500) pushes the third control rod (3110) to move linearly, a third oil inlet channel (3200) communicated with the third cavity (3100) is formed in the bottom of the third valve body (3000),
wherein the bottom and the top of the second valve body (2000) are respectively and fixedly connected with the top of the first valve body (1000) and the bottom of the third valve body (3000),
and wherein the first oil inlet passage (1200), the second oil inlet passage (2200) and the third oil inlet passage (3200) are communicated with each other;
wherein, the middle part of the second valve body (2000) is provided with a second cavity (2100) moving horizontally, the opening of the second cavity (2100) is arranged on the outer side surface of the second valve body (2000), a second oil outlet channel (2400) is arranged between the tops of the bottoms of the second valve body (2000), the second oil outlet channel (2400) is communicated with the second cavity (2100), a second control rod assembly (2500) is inserted into the second cavity (2100), the inner end part of the second control rod assembly (2500) adjusts and limits the flow of hydraulic oil passing through the second oil outlet channel (2400),
a first oil outlet channel (1400) which is communicated with the top of the first cavity (1100) from the top of the first valve body (1000), an opening is arranged on the first cavity (1100) above the first spring (1120) to be communicated with the first oil outlet channel (1400),
a third oil outlet channel (3400) communicated with the third cavity (3100) is formed at the bottom of the third valve body (3000),
wherein the first oil outlet channel (1400), the second oil outlet channel (2400) and the third oil outlet channel (3400) are communicated with each other;
wherein, the inner end of the second cavity (2100) is provided with an adjusting limited block (2110) with an opening in the middle,
the second control rod assembly (2500) comprises a mounting kit (2510), a second spring (2520), a flow-limiting collar (2530), a flow-limiting post (2540) and an adjusting screw (2550),
the outer wall of the front half part of the installation kit (2510) is provided with external threads which are connected with the internal threads of the second cavity (2100) close to the side outlet, the second spring (2520) and the flow-limiting lantern ring (2530) are installed on the inner front half part of the installation kit (2510) from inside to outside, the end surfaces of two sides of the second spring (2520) are respectively abutted against the inner side wall of the front half part of the installation kit (2510) and the outer side wall of the flow-limiting lantern ring (2530),
the outer side of the flow limiting sleeve ring (2530) is provided with a flow limiting bump (2531), the flow limiting sleeve ring (2530) is uniformly provided with a flow limiting hole (2532), the flow limiting column (2540) is inserted into the middle of the installation sleeve member (2510), the flow limiting column (2540) penetrates through the middle of the second spring (2520), the outer wall of the front section of the flow limiting column (2540) is provided with an external thread which is mutually connected with the internal thread of the inner wall of the flow limiting sleeve ring (2530), the external thread of the adjusting screw (2550) is mutually connected with the inner wall of the rear half part of the installation sleeve member (2510), and the outer side wall of the front section of the flow limiting column (2540) shields the flow limiting hole (2532) so as to control the flow of hydraulic oil flowing through the flow limiting hole (2532),
wherein, the outer side wall of the flow limiting lug (2531) and the outer side wall of the adjusting limit block (2110) are contacted with each other for limiting.
2. The cryogenic hydraulic combiner valve island of claim 1,
two sides in the first cavity (1100) are provided with first limit blocks (1130) with openings in the middle, two ends of the first control rod (1110) are provided with first control rod bulges (1111) which are in mutual contact with the outer side surfaces of the first limit blocks (1130) for limiting,
a control oil duct (1300) is arranged in the first valve body (1000), two sides of the upper part of the control oil duct (1300) are respectively provided with openings communicated with the top of the first cavity (1100), two sides of the lower part of the control oil duct (1300) are respectively provided with openings communicated with the bottom of the first cavity (1100), two sides of the lower part of the control oil duct (1300) extend downwards to a pair of control oil ports (1310) at the bottom of the first valve body (1000),
the oil pressure generated by the hydraulic oil filled in the control oil passage (1300) pushes the first control rod protrusion (1111) to move linearly.
3. The cryogenic hydraulic combiner valve island of claim 2,
the middle part of the first control rod (1110) is outwards provided with a plurality of second control rod bulges (1112),
a plurality of second limit blocks (1140) with openings in the middle are arranged in the middle part of the first cavity (1100),
the outer side surface of the second limiting block (1140) and the inner side surface of the second control rod protrusion (1112) are limited to each other, and the second limiting block (1140) and the second control rod protrusion (1112) block the first oil inlet channel (1200) and the control oil channel (1300).
4. The cryogenic hydraulic combiner valve island of claim 1,
third limiting blocks (3120) with openings in the middle are arranged on two sides in the third cavity (3100), third control rod protrusions (3111) which are in contact with the outer side surfaces of the third limiting blocks (3120) for limiting are arranged at two ends of the third control rod (3110),
and a third cover body assembly (3300) is arranged in the third cavity (3100) in the direction opposite to the electromagnetic valve (3500).
5. The cryogenic hydraulic combiner valve island of claim 4,
the third cap assembly (3300) comprises a third cap (3310), a third spring (3320) and a third ring member (3330),
wherein, the outer wall of the front part of the third cover body (3310) is provided with external threads which are mutually connected with the internal threads of the third cavity (3100) close to the side outlet, the front half part inside the third cover body (3310) is provided with the third spring (3320) and the third ring member (3330) from inside to outside, the end surfaces at two sides of the third spring (3320) are respectively propped against the inner side wall of the front half part of the mounting sleeve member (2510) and the outer side wall of the third ring member (3330),
and wherein one end of the third lever (3110) is inserted into the middle opening of the third ring member (3330) to be linearly moved.
6. The cryogenic hydraulic combiner valve island of claim 1,
the first oil outlet channel (1400) above the first spring (1120) is divided into a first-stage oil outlet channel (1410), a second-stage oil outlet channel (1420) and a third-stage oil outlet channel (1430),
the first-stage oil outlet channel (1410) is positioned above the first spring (1120), the opening of the third-stage oil outlet channel (1430) is positioned at the top of the first valve body (1000), two ends of the second-stage oil outlet channel (1420) are communicated with one end of the first-stage oil outlet channel (1410) and one end of the third-stage oil outlet channel (1430),
the first cavity (1100) has a first cavity axis,
the first stage oil outlet passage (1410) has a first axis,
the second stage oil outlet passage (1420) has a second axis,
the third stage oil outlet passage (1430) has a third axis,
the first axis is orthogonal to the first cavity (1100) axis, and the first axis and the third axis are orthogonal to the second axis.
7. The cryogenic hydraulic combiner valve island of claim 1,
the two side surfaces of the first valve body (1000) are fixed on a first side valve body (1500) through a plurality of bolts, a first spring accommodating cavity (1510) is formed in the inner side of the first side valve body (1500), the first spring accommodating cavity (1510) is communicated with the first cavity (1100), and a part of the first spring (1120) is installed in the first spring accommodating cavity (1510),
a circle of first sealing ring (1600) is arranged on the side surface of the first valve body (1000),
the inner side end face of the first side valve body (1500) is in pressing contact with the first sealing ring (1600).
8. The cryogenic hydraulic combiner valve island of claim 1,
a flow-limiting column sealing ring (2541) is arranged on the outer wall of the flow-limiting column (2540) in a surrounding way, the outer ring of the flow-limiting column sealing ring (2541) is mutually abutted against the inner wall of the middle hole of the flow-limiting sleeve ring (2530) to be in sealing connection,
and a flow-limiting sleeve ring sealing ring (2533) is pressed between the inner side end surface of the flow-limiting sleeve ring (2530) and the side surface in the second cavity (2100).
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| CN202110826958.6A CN113719487B (en) | 2021-07-21 | 2021-07-21 | Low-temperature hydraulic combined valve terminal |
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| CN113719487A (en) | 2021-11-30 |
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