CN85100384B - Hydraulic control system of lithotriptor - Google Patents
Hydraulic control system of lithotriptor Download PDFInfo
- Publication number
- CN85100384B CN85100384B CN85100384A CN85100384A CN85100384B CN 85100384 B CN85100384 B CN 85100384B CN 85100384 A CN85100384 A CN 85100384A CN 85100384 A CN85100384 A CN 85100384A CN 85100384 B CN85100384 B CN 85100384B
- Authority
- CN
- China
- Prior art keywords
- lithotriptor
- hydraulic
- valve
- control
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
Hydraulic control system of lithotriptor. The invention relates to construction and mining equipment. The invention provides a hydraulic control system capable of automatically pressurizing a lithotriptor and automatically reversing and continuously impacting a punch hammer. The automatic pressurization control in the system is realized by leading an oil path out from an oil path conveyed to the lithotripter to enter pressure oil in an upper cavity of a main arm lifting oil cylinder through a bidirectional oil path self-locking valve, and an asymmetric oscillation commutator controls a three-position four-way valve and then controls the reversing of a hammer to realize automatic reversing continuous impact. The system is suitable for fixed or movable hydraulic rock crushers with various types of hydraulic rock crushers.
Description
The invention belongs to the hydraulic control system in building and the winning equipment.
Lithotriptor is mainly used in open-pit mine stope, quarry, the broken big lump ore rock in ore dressing plant, to replace secondary blasting.In the hydraulic control system of at present domestic and international lithotriptor, as nineteen eighty-two the Shandong ring again and in " hydraulic rock breaker " literary composition that " foreign project machinery " is delivered, mention, the fuel feeding of lithotriptor is by road valve in the multiple directional control valve, or controls with pedal-electro-hydraulic reversing valve; Publish the operating principle of the automatic oil-allocation type hydraulic vibrator displacement narrated in " hydraulic vibration technology " book that red legend China writes and pressure feedback control according to Fujian science tech publishing house in 1984, can realize the impact automatically continuously of steel to steel formula hydraulic rock breaker.U.S. Qiao of unique in the world production fluid cushion formula hydraulic rock breaker is according to the 514Hefti type hydraulic lithotriptor of machine manufacturing company, because with manual pressurization and manual commutation, therefore, for making lithotriptor can continue to compress the thing that is broken, overcome bounce-back, perhaps frequent operation principal arm hoist cylinder presses down handle, perhaps crawler belt jack-up is unsettled on one side, utilize the pressurization of complete machine weight, this troublesome poeration also is difficult to control, more seriously after big lump ore rock is broken, lithotriptor can drop down suddenly together with support arm, breaks parts; In addition, high-energy hydraulic hammer with liquid cushion is because structure and the strict particularity that seals, internal control automatic reverse is difficult to be realized, and be that foot-operated single-shot impacts, can only be applicable to fragmentation volume less, promptly impacting 1～2 time just can broken ore deposit rock, if broken hard big lump ore rock, then need impact tens of times even up to a hundred times, the mode that obvious this control is impacted is unconformable, and not only operating personnel require great effort, and operating efficiency is low.
The purpose of this invention is to provide a kind of need in lithotriptor hydraulic control system commonly used, pack into a two-way oil circuit latching valve, a throttle switch, a unsymmetrical oscillation commutator and a master switch, just can realize automatic pressurization and the tracking of lithotriptor and make the high-energy hydraulic hammer with liquid cushion block stamp can single-impact again can automatic reverse bump also can remember the hydraulic control system of impact number of times.
The present invention is achieved in that hydraulic fluid port p, the o of two-way oil circuit latching valve advance with lithotriptor respectively, oil return line a, b are connected, and the hydraulic fluid port A of this valve is connected with principal arm hoist cylinder loculus, hydraulic fluid port B links to each other with the big chamber of principal arm hoist cylinder through throttle switch, so just can be in the lithotriptor course of work, the cutter bar applies axial compression to the thing that is broken all the time; The unsymmetrical oscillation commutator that is arranged on the bridge operation platform is connected with the 3-position 4-way electro-hydraulic reversing valve with master switch respectively with line, this valve is again respectively with master switch and foot switch and connect, foot switch is connected with master switch again, can realize the single of fluid cushion formula hydraulic rock breaker or impact automatically continuously like this.
The present invention only needs to increase by two Hydraulic Elements and electric elements in common lithotriptor hydraulic control system, so improvement expenses is low, and the repacking amount is few, and can receive obvious benefit.The automatic pressurization of lithotriptor and automatic reverse control not only can prevent to drop suddenly owing to the thing that is broken has broken the lithotriptor that causes, the protection parts, and can make full use of broken energy, and raise the efficiency, easy and simple to handle.
Concrete facility of the present invention is provided by following examples and accompanying drawing thereof.
Fig. 1 is the hydraulic control system figure of lithotriptor.
Fig. 2 is an automatic reverse control device schematic diagram.
Below in conjunction with Fig. 1 and Fig. 2, describe the details and the working condition of the concrete system that proposes according to the present invention in detail.
This system is the part of YSJ-1 type mobile hydraulic stone breaker hydraulic control system, and it will excavate and rubble is divided into two independently hydraulic circuits.Pressure oil is by multiple directional control valve 9, enter two-position four-way electro-hydraulic reversing valve 1, valve 1 links to each other with lithotriptor, receive on the 3-position 4-way electro-hydraulic reversing valve 5 from the oil circuit of transporting to lithotriptor, drawing an oil circuit, valve 5 links to each other with hydraulic control one-way valve 6 on the lithotriptor again, and the tube valve events in the lithotriptor is with the commutation of control block stamp.Reversal valve 9 links to each other with 4 liang of chambeies of hoist cylinder of principal arm 7, on the oil circuit in parallel, adorn a two-way oil circuit latching valve 2 with two oil circuits of oil cylinder 4, this valve links to each other with the advancing of lithotriptor, oil return line again, adorns a throttle switch 3 on the oil circuit between latching valve 2 and the oil cylinder 4 big chamber hydraulic fluid ports.Before the lithotriptor work, reversing valve operated 9, make oil cylinder 4 actions, regulate the lithotriptor position, cutter bar 8 and after the thing that is broken contacted, loosing one's grip allowed reversal valve 9 automatically reset.The piston of the impact of lithotriptor block stamp and hoist cylinder 4 presses down action simultaneously, and at this moment principal arm 7 rotates around fulcrum M, that is the automatic pressurization of lithotriptor and impact generation simultaneously.In lithotriptor when work,, reversal valve 9 is failure to actuate, and promptly oil cylinder 4 is to be realized by the pressure oil that latching valve 2 enters oil cylinder 4 loculuses by the oil circuit a of branch that the oil circuit that enters lithotriptor is drawn to the lithotriptor pressurization with to the tracking of nugget.Broken when the thing that is broken, cutter bar 8 can not drop suddenly, because throttle switch 3 is to play a protective role in order to the oil drain quantity of regulating hoist cylinder 4 big chambeies, and reaches desired decrease speed.C places zero-bit when automatic reverse control device (consulting Fig. 2) master switch, control circuit outage, and reversal valve 1 (see figure 1) of being failure to actuate, pressure oil flows back to fuel tank 10 by reversal valve 9,1, and lithotriptor is not worked.C places foot position when master switch, and block stamp is made drawback movement, and compressed nitrogen is when foot switch depresses, the other end electromagnet energising of reversal valve 5, the tube valve moves downward, and the lithotriptor ante-chamber communicates with oil return line, the back cavity nitrogen expansion forces block stamp to impact forward, realizes manual single-impact.If master switch c places automated location, the energising of the electromagnet of reversal valve 1, pressure oil enters the loculus of lithotriptor and oil cylinder 4, and another branch's oil circuit enters reversal valve 5.Simultaneously unsymmetrical oscillation commutator d alternately connects the electromagnet at reversal valve 5 two ends by the time difference, makes pressure oil also alternately enter two chambeies of one way valve 6, realizes the automatic reverse bump of block stamp.Foundation is supplied with the flow and the pressure of the pressure oil of this system, and the stroke, backhaul and the energy that determine block stamp transmit each section period, through the overtesting adjustment, can determine the auto reversive control time of block stamp.Adopt the SYD-2000 type fluid cushion formula high energy hydraulic lithotriptor of this block stamp automatic reverse control mode now to sell many.Whether can guarantee to impact each all synchronism stability work, also need further to investigate, remaining from now on, the user draws a conclusion.
The YSJ-I type mobile hydraulic stone breaker of adapted SYD-400 type high-energy hydraulic hammer with liquid cushion adopts this hydraulic control system, and single-impact can be 400 kgfms, and frequency of impact is 40 times/minute, is 1.85 meters at the broken average lumpiness of stope
3, solid coefficient is the dolomite of f=9～18, average machine-team efficient is 72, about 300 tons.
Claims (5)
1, the lithotriptor hydraulic control system is by the hydraulic power source fuel feeding, control with manual by road valve in the multiple directional control valve, or control with pedal one electro-hydraulic reversing valve, steel to steel formula hydraulic rock breaker is to add axial compression by manual support arm, inner telltale hole FEEDBACK CONTROL of block stamp realizes impacting automatically continuously, automatically pressurization also can make the automatic reverse of fluid cushion formula lithotriptor with tracking, it is characterized in that:
1. on the oil circuit in parallel, adorn a two-way oil circuit latching valve (2) with two oil circuits of principal arm hoist cylinder (4), on the oil circuit between this valve and the big chamber of oil cylinder (4) hydraulic fluid port, adorn a throttle switch (3), thereby realize the automatic pressurization and tracking control of lithotriptor.
2. adopt unsymmetrical oscillation commutator (d) and the master switch (c) made according to time difference calculating, realize the automatic reverse control of fluid cushion formula hydraulic rock breaker.
2, according to the hydraulic control system of the described lithotriptor of claim 1, the hydraulic fluid port p, the o that it is characterized in that two-way oil circuit latching valve (2) link to each other with in-line (a) oil return line (b) of lithotriptor respectively, in the lithotriptor course of work, principal arm hoist cylinder (4) loculus communicates with in-line (a) all the time, and its big chamber then communicates with oil return line (b) through throttle switch (3).
3, according to the hydraulic control system of the described lithotriptor of claim 1, it is characterized in that with the timing automatic commutation of 3-position 4-way electro-hydraulic reversing valve (5) that the control of master switch (c) and unsymmetrical oscillation commutator (d) is advanced with lithotriptor, oil return line links to each other this valve links to each other with hydraulic control one-way valve (6) on the lithotriptor again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100384A CN85100384B (en) | 1985-04-01 | 1985-04-01 | Hydraulic control system of lithotriptor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100384A CN85100384B (en) | 1985-04-01 | 1985-04-01 | Hydraulic control system of lithotriptor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85100384A CN85100384A (en) | 1986-08-27 |
| CN85100384B true CN85100384B (en) | 1988-06-22 |
Family
ID=4791117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85100384A Expired CN85100384B (en) | 1985-04-01 | 1985-04-01 | Hydraulic control system of lithotriptor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85100384B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640073B (en) * | 2016-12-09 | 2019-03-08 | 陈国梁 | Full Automatic Liquid presses off stone device |
-
1985
- 1985-04-01 CN CN85100384A patent/CN85100384B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85100384A (en) | 1986-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102191937B (en) | Hydraulic cleave-cracking bench vehicle | |
| CN101614228B (en) | Hydraulic controlling system for mining concrete pump | |
| CN108906178A (en) | A kind of construction garbage pulverator | |
| CN201632573U (en) | Free forging hydraulic power system | |
| CN202590855U (en) | Crusher moving roller hydraulic system | |
| CN201982009U (en) | A hydraulic impactor with a hollow slide valve | |
| CN202326482U (en) | Hydraulic breaking hammer reversing valve | |
| CN85100384B (en) | Hydraulic control system of lithotriptor | |
| CN201151562Y (en) | Novel hydraulic step-by-step regulated feeder | |
| CN106640073B (en) | Full Automatic Liquid presses off stone device | |
| CN210194736U (en) | Automatic frequency modulation breaking hammer hydraulic system and excavator | |
| CN1022297C (en) | Rock breaker for secondary breaking mine rock | |
| CN207620705U (en) | A kind of closed hydraulic drill | |
| CN211690508U (en) | Split type hydraulic hammer core | |
| CN202545405U (en) | Gas-liquid combined hydraulic impactor | |
| CN110144987B (en) | Crushing control system of excavator | |
| CN210315736U (en) | Hydraulic breaker | |
| CN203655296U (en) | Ultrahigh pressure leakproof hydraulic rock splitter | |
| CN201972703U (en) | Novel excavating loader with rock drill | |
| CN202012353U (en) | Hydraulic splitting trolley | |
| CN201297299Y (en) | Reversal valve of a hydraulic breaker | |
| GB1135225A (en) | Improvements in or relating to fluid actuated power hammers | |
| CN202348882U (en) | Novel connecting pin shaft of hydraulic breaker | |
| CN215029505U (en) | Hydraulic operating device for replacing hammer head of large hammer crusher | |
| CN213478802U (en) | Hydraulic hammer middle cylinder with built-in overflow valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |