CN104196789A - Hydraulic combination valve system for equipment train and control method thereof - Google Patents
Hydraulic combination valve system for equipment train and control method thereof Download PDFInfo
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- CN104196789A CN104196789A CN201410325429.8A CN201410325429A CN104196789A CN 104196789 A CN104196789 A CN 104196789A CN 201410325429 A CN201410325429 A CN 201410325429A CN 104196789 A CN104196789 A CN 104196789A
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- valve
- throttle valve
- oil cylinder
- way throttle
- push rod
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Abstract
The invention discloses a hydraulic combination valve system for an equipment train and a control method thereof, and belongs to the field of control valves of overload equipment trains for coal mines. A double-control throttle valve for the equipment train comprises a valve body and one-way throttle valves, wherein the one-way throttle valve comprises a valve plug, a spring, a valve, an ejection rod and an adjusting bolt; a cavity is formed in the valve plug; the head of the ejection rod extends in the cavity of the valve plug, and the tail is positioned outside the valve plug; the valve is positioned at the head of the ejection rod; the spring coats the ejection rod; one end of the spring is ejected on the valve, and the other end is ejected on the wall of the cavity; and two one-way throttle valves are provided, and are symmetrically arranged in one valve body. The hydraulic combination valve, provided by the invention, integrates a direction control valve with a flow control valve as a whole, solves the problems of large volume, complex structure and frequent generation of faults in an existing equipment train control valve, and has the advantages of simple product structure, stable performance and convenience for maintenance.
Description
Technical field
The present invention relates to the control valve field of colliery heave-load device train, specifically, the present invention relates to a kind of equipment train Combined hydraulic valve system and controlling method thereof.
Background technique
Colliery is a haulage device in comprehensive mechanical coal mining system with heave-load device train, is arranged on coal-face Zheng Xiang Huofu lane.It is the command center of coal mine fully-mechanized mining working, be installed with here control work scraper-trough conveyer, transloader, disintegrator, etc. the switch of main equipment, the main equipments such as mobile substation, emulsion power pack, pump box, equipment train can move and move along with back production.
Current, colliery is used from moving device train control valve class formation used comparatively complicated, profile is huge, and material is foundry iron, and working medium used is had to stricter requirement, can not use existing power equipment emulsion pump, also to separately establish the power source that a set of hydraulic oil is working medium, so not only increase cost, also make system more complicated, also have rate of fault phenomenon more frequently, maintenance cost is very high simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of similar with down-hole existing hydraulic equipment valve, and has that product structure is simple, stable performance, easy to maintenance, the Combined hydraulic valve not high to craftsmanship's competency profiling.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of equipment train dual control throttle valve, comprise valve body, one-way throttle valve, described one-way throttle valve comprises that valve is stifled, spring, valve, push rod and adjusting bolt, the stifled inside of valve is provided with cavity body, the head of push rod stretches in the stifled cavity of valve, afterbody be positioned at valve stifled outside, valve is placed in the head of push rod, spring housing is on push rod, one end of spring withstands on valve, the other end withstands on the chamber wall of cavity body, adjusting bolt is provided with internal thread and coordinates with the outside thread of push rod, described one-way throttle valve has two, two one-way throttle valves are symmetrically placed in same valve body, the neutral position of two one-way throttle valve push rods is provided with the second "O"-ring, the internal thread of described adjusting bolt and the outside thread of push rod are all fine thread.
A kind of Combined hydraulic valve system being formed by dual control throttle valve, comprise oil hydraulic pump, fuel tank, selector valve, dual control throttle valve and walking oil cylinder, described oil hydraulic pump and fuel tank are all connected on selector valve, and selector valve is connected on Combined hydraulic valve, and Combined hydraulic valve is connected with walking oil cylinder.
The controlling method of above-mentioned Combined hydraulic valve system, when pump liquid enters dual control throttle valve P1 hole through selector valve, fluid is pushed one-way throttle valve A1 open, enter walking oil cylinder B1 side through one-way throttle valve A1 hole, force piston rod to be retracted toward B2 side, walking oil cylinder B2 side fluid is squeezed, one-way throttle valve A2 closes, oil cylinder B2 side liquid cannot flow back to fuel tank, cause system pressure constantly to raise, until system pressure reaches 10MPa when above, individual event throttle valve A 2 is opened, walking oil cylinder B2 side fluid just can flow back to fuel tank, so far the oil cylinder of walking completes one and regains action, as the need oil cylinder that makes to walk stretches out, only need reverse operation selector valve to realize.
Adopt technological scheme of the present invention, can obtain following beneficial effect:
Combined hydraulic valve provided by the invention, by integrated to position control valve and flow control valve, solves existing equipment train control valve body long-pending large, complex structure, the problem of Frequent Troubles; Designed the interface with the existing hydraulic equipment in down-hole with conformity and interchangeability simultaneously, equipment train control valve is designed to down-hole existing hydraulic equipment valve similar, there is product structure simple, stable performance, feature easy to maintenance, not high to craftsmanship's competency profiling, greatly reduce installation difficulty and maintenance cost, realized new equipment and do not needed to increase maintenance man, original support miantainers, can processing equipment train valve problem.Stretching out and retraction of control mode control oil cylinder by a series of combination brake switch and proporting, has improved working efficiency in addition.
Brief description of the drawings
Mark in the each accompanying drawing of this specification expressed content and figure is made to brief description below.
Fig. 1 is the structural representation of dual control throttle valve;
Fig. 2 is Combined hydraulic valve system architecture schematic diagram;
Mark in above-mentioned figure is: 1, valve body; 2, valve is stifled; 3, spring; 4, valve; 5, valve pad; 6, the first "O"-ring; 7, the first back-up ring; 8, valve pocket; 9, the second "O"-ring; 10, the second back-up ring; 11, push rod; 12, the 3rd "O"-ring; 13, the 3rd back-up ring; 14, adjusting bolt; 15, dual control throttle valve; 16, fuel tank; 17, oil hydraulic pump; 18, selector valve; 19, walking oil cylinder.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as effect and the working principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part.
As shown in Figure 1, dual control throttle valve 15 of the present invention comprises two symmetrical one-way throttle valves, two one-way throttle valve arrangements are identical, and one-way throttle valve is symmetricly set in same valve body 1, even in the middle of an one-way throttle valve, separate by the second "O"-ring 9 and the second back-up ring 10.One-way throttle valve is stifled 2 by valve, spring 3, valve 4, valve pad 5, the first "O"-ring 6, the first back-up ring 7, valve pocket 8, push rod 11, the 3rd "O"-ring 12, the 3rd back-up ring 13 and adjusting bolt 14 form.As need are adjusted flow, only need to reverse adjusting bolt 14, by changing liquid mouth circulation area, thereby the flow of control fluid, because the screw thread of adjusting bolt 14 is fine thread, can be realized continuous, tiny Flow-rate adjustment easily.This dual control throttle valve 15 simplicity of design on process structure, process easy to assembly, this throttle valve is coaxially provided with symmetrical valve pocket at valve body 1 two ends, between valve pocket, be not communicated with mutually, in two valve pockets, be provided with the one-way throttle valve that structure is identical, on valve body 1, be also provided with respectively and oil inlet P 1, P2 and the oil outlet of two valve pocket conductings, for guaranteeing to use this valve of safety also to set up two relief valve connection P peaces; This valve throttling control mode is simple simultaneously, can realize continuous Flow-rate adjustment, and in the time that fluid flows, can play self cleaning to throttle valve through the fluid between valve and valve pocket, can significantly improve the stain resistance of this valve, has extended working life.
Valve body 1 adopts the comparatively superior 3Cr13 stainless steel of rustless property to substitute original foundry iron, and this material can be guaranteed the working strength of accessory, largely improves again the corrosion resistance of valve body, can significantly improve the working life of this valve in the rugged environment of down-hole.The present invention designs the unified interface shape of employing, the existing pressure duct in down-hole, all adopt the rapid pipe joint of mine U-shaped pin formula, for guaranteeing that this dual control throttle valve 15 is connected and exchange with the quick of existing well lower pipeline, be fast interface form by original threaded coupling Change All, facilitated workman to install and maintain and replace.
As shown in Figure 2, for the concrete applying working condition of this valve, oil hydraulic pump 17 is extracted the pump liquid in fuel tank 16 out, enter the P1 hole of dual control throttle valve 15 through selector valve 18, fluid is pushed one-way throttle valve A1 open, enter the B1 end of walking oil cylinder 19 through one-way throttle valve A1 valve opening, force the retraction of turning left of the piston rod of walking in oil cylinder 19, the B2 end fluid of walking oil cylinder 19 is squeezed, but one-way throttle valve A2 does not open, the B2 end liquid of walking oil cylinder 19 cannot flow back to fuel tank 16, cause system pressure constantly to raise, until system pressure reaches 10MPa when above, individual event throttle valve A 2 is opened, the B2 end fluid of walking oil cylinder 19 just can flow back to fuel tank 16, so far the oil cylinder 19 of walking completes one and regains action, as making the piston rod of walking in oil cylinder 19, stretch out by need, only need reverse operation selector valve 18 to realize.
For adapting to the requirement of mine fast development, reach safety, the highly efficient and productive coal mining that carries out, the application of mine machinery is had higher requirement.Along with the use of dual control throttle valve 15, rely on emulsion power pack powered, realize equipment train operation convenient, efficient, obtain good effect.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technological scheme carry out; or without improving, design of the present invention and technological scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (4)
1. an equipment train dual control throttle valve, comprise valve body, one-way throttle valve, described one-way throttle valve comprises that valve is stifled, spring, valve, push rod and adjusting bolt, the stifled inside of valve is provided with cavity body, the head of push rod stretches in the stifled cavity of valve, afterbody be positioned at valve stifled outside, valve is placed in the head of push rod, spring housing is on push rod, one end of spring withstands on valve, the other end withstands on the chamber wall of cavity body, adjusting bolt is provided with internal thread and coordinates with the outside thread of push rod, it is characterized in that: described one-way throttle valve has two, two one-way throttle valves are symmetrically placed in same valve body, the neutral position of two one-way throttle valve push rods is provided with the second "O"-ring.
2. equipment train according to claim 1 dual control throttle valve, is characterized in that: the internal thread of described adjusting bolt and the outside thread of push rod are all fine thread.
3. the Combined hydraulic valve system being formed by claim 1 dual control throttle valve, it is characterized in that: comprise oil hydraulic pump, fuel tank, selector valve, dual control throttle valve and walking oil cylinder, described oil hydraulic pump and fuel tank are all connected on selector valve, selector valve is connected on Combined hydraulic valve, and Combined hydraulic valve is connected with walking oil cylinder.
4. the controlling method of Combined hydraulic valve system as claimed in claim 3, it is characterized in that: when pump liquid enters dual control throttle valve P1 hole through selector valve, fluid is pushed one-way throttle valve A1 open, enter walking oil cylinder B1 side through one-way throttle valve A1 hole, force piston rod to be retracted toward B2 side, walking oil cylinder B2 side fluid is squeezed, one-way throttle valve A2 closes, oil cylinder B2 side liquid cannot flow back to fuel tank, cause system pressure constantly to raise, until system pressure reaches 10MPa when above, individual event throttle valve A 2 is opened, walking oil cylinder B2 side fluid just can flow back to fuel tank, so far the oil cylinder of walking completes one and regains action, as the need oil cylinder that makes to walk stretches out, only need reverse operation selector valve to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325429.8A CN104196789B (en) | 2014-07-10 | 2014-07-10 | A kind of equipment train Combined hydraulic valve system and controlling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410325429.8A CN104196789B (en) | 2014-07-10 | 2014-07-10 | A kind of equipment train Combined hydraulic valve system and controlling method thereof |
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| Publication Number | Publication Date |
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| CN104196789A true CN104196789A (en) | 2014-12-10 |
| CN104196789B CN104196789B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410325429.8A Active CN104196789B (en) | 2014-07-10 | 2014-07-10 | A kind of equipment train Combined hydraulic valve system and controlling method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU681433A1 (en) * | 1977-12-13 | 1979-08-25 | Предприятие П/Я А-3315 | Direct precedence hydropneumatic device |
| US4844118A (en) * | 1987-06-18 | 1989-07-04 | Bendix France | Rotary hydraulic distributor for a servo mechanism |
| CN1069798A (en) * | 1991-08-16 | 1993-03-10 | 刘丙戎 | Bidirectional throttling valve |
| CN2660262Y (en) * | 2003-07-23 | 2004-12-01 | 上海华岛液压设备制造有限公司 | Overlapping two-way/one-way throttle |
| CN103541942A (en) * | 2013-10-29 | 2014-01-29 | 天地上海采掘装备科技有限公司 | Two-way control valve applicable to rising system of shortwall coal cutter |
-
2014
- 2014-07-10 CN CN201410325429.8A patent/CN104196789B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU681433A1 (en) * | 1977-12-13 | 1979-08-25 | Предприятие П/Я А-3315 | Direct precedence hydropneumatic device |
| US4844118A (en) * | 1987-06-18 | 1989-07-04 | Bendix France | Rotary hydraulic distributor for a servo mechanism |
| CN1069798A (en) * | 1991-08-16 | 1993-03-10 | 刘丙戎 | Bidirectional throttling valve |
| CN2660262Y (en) * | 2003-07-23 | 2004-12-01 | 上海华岛液压设备制造有限公司 | Overlapping two-way/one-way throttle |
| CN103541942A (en) * | 2013-10-29 | 2014-01-29 | 天地上海采掘装备科技有限公司 | Two-way control valve applicable to rising system of shortwall coal cutter |
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| Publication number | Publication date |
|---|---|
| CN104196789B (en) | 2016-04-27 |
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