CN204400057U - A kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt - Google Patents
A kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt Download PDFInfo
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- CN204400057U CN204400057U CN201520065128.6U CN201520065128U CN204400057U CN 204400057 U CN204400057 U CN 204400057U CN 201520065128 U CN201520065128 U CN 201520065128U CN 204400057 U CN204400057 U CN 204400057U
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Abstract
The utility model provides a kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt, comprises belt and is fixedly arranged on two straps at two ends bottom belt, to be positioned at above belt symmetrically with strap to be provided with ambulatory splint; Described two ambulatory splints respectively connect arrests oil cylinder, described in arrest oil cylinder the oil outlet end of oil inlet end and stroke valve be connected, the oil inlet end of described stroke valve is connected with fuel tank by fuel transfer pump; Described belt is provided with and runs and the friction wheel of rotation with belt, and the output shaft of described friction wheel is connected with double-direction gearpump; One end hydraulic fluid port of described double-direction gearpump is connected with fuel tank, and other end hydraulic fluid port is connected with drawback cylinder with fuel tank respectively; The piston rod of described drawback cylinder docks with described stroke valve.Produce by mistake arresting of producing when low speed skids when completely solving when belt startup and brake, improve reliability and the accuracy of cAN _ SNture, meet the needs of Mine Safety in Production.
Description
Technical field
The utility model relates to a kind of broken-belt catching system on band conveyor, particularly relates to a kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt.
Background technology
Band conveyor is the machinery of a kind of friction-driven transported material in a continuous manner, primarily of frame, the cylinder being located at frame two ends and the tight closed belt composition overlapped on it, by material on certain travel line, a kind of conveying flow process of material from initial feed point to final emptying point, can be formed.It both can carry out the conveying of broken loose material, also can carry out the conveying of work piece.May be used for horizontal transport or transport of tilting, very easy to use, be widely used in modern various industrial enterprise, as in the underworkings in: mine, grass transport systems, field of opencast mining and ore dressing plant.Particularly in In Modern Mine is produced, the features such as band conveyor is simple with its structure, installation and transportation convenient, continuous portion discontinuous haulage, superior performance become the crucial transportation device of mine hoisting production capacity.
Due to the long-term high loaded process of belt and some unexpected factors, pound or metal, stone jam as spoil hits, belt connector is produced tired, long-time running easily causes the unexpected fracture of belt; Especially in the ascending manner band conveyor large at inclination angle, belt is long, load is large, once there is broken belt downslide will produce serious consequences such as destroying belt feeder frame, damage equipment, blocking belt heading, and cause long-time stopping production and heavy economic losses, even personal casualty simultaneously.
The safety in production in current colliery is increasingly important, and what the belt of people's more and more valuing researches band conveyor broke the accident of helping splits the work of rescuing, and as just caught by belt in time when fracture occurs belt, avoids transported material downslide and produces serious consequence.Have now been developed dissimilar broken-belt catching system, it is substantially identical that it mainly forms structure, all has broken belt signal supervisory instrument, flip flop equipment, brake equipment and propulsion source.Though existing broken-belt catching system respectively has advantage in actual applications, but there is a common shortcoming. namely belt conveyer start or braking time, load-transfer device Chang Rongyi is mistaken for broken belt accident and occurs, and therefore misoperation causes the work of load-transfer device capturing system. thus cause load-transfer device impaired.As patent ZL 200720089473.9 proposes a kind of belt belt break protection device and intelligent high angle belt conveyer breakage protection system, its intelligent high angle belt conveyer breakage protection system, to keep at a certain distance away to tail at the head of belt conveyer and arrange the belt break protection device of some, the movable friction plate driver train of belt break protection device adopts Pneumatic piston, adopt PLC programming controller, be provided with broken belt to detect, drive motor current detecting and belt break protection device state-detection, glide once the movable friction plate of generation broken belt and fixed friction plate produce the powerful belt of organizing of gripping power more and more closely, avoid safety misadventure occurs, realize the automation of broken belt protector.This belt break protection device uses air pressure as propulsion source, and the power of arresting provided is less, and need multiple spot to arrange multiple break catching apparatus, add the difficulty of maintenance, Collaborative Control is not too reliable.Use air pressure additionally need arrange breather line as propulsion source, install and use more complicated, be not suitable for the broken-belt catching of long distance high spud angle high load capacity belt conveyer.Therefore the capturing system of designed for greater reliability is still a problem needing in-depth study.
Utility model content
The utility model is exactly to overcome the above problems, there is provided a kind of and judge errorless, sensitive intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt, avoid when starting at band conveyor, brake or skid and occur arresting phenomenon by mistake, ensured the safety in production in colliery.
In order to achieve the above object, the utility model provides a kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt, comprise belt and be fixedly arranged on two straps at two ends bottom belt, being positioned at above belt and symmetrically with strap being provided with ambulatory splint; Described two ambulatory splints respectively connect arrests oil cylinder, described in arrest oil cylinder the oil outlet end of oil inlet end and stroke valve be connected, the oil inlet end of described stroke valve is connected with fuel tank by fuel transfer pump; Described belt is provided with and runs and the friction wheel of rotation with belt, and the output shaft of described friction wheel is connected with double-direction gearpump; One end hydraulic fluid port of described double-direction gearpump is connected with fuel tank, and other end hydraulic fluid port is connected with drawback cylinder with fuel tank respectively; The piston rod of described drawback cylinder docks with described stroke valve.
Further, the first check valve is provided with between described double-direction gearpump and drawback cylinder.
Further, described oil transportation delivery side of pump is also connected with energy storage and pressure relay; Described energy storage limit is provided with compression indicator.
Further, the oil inlet end of arresting oil cylinder described in is parallel with the second check valve and governor valve.
Further, described fuel transfer pump is driven by motor, and oil transportation delivery side of pump is also connected with blowdown valve.
Hydraulic efficiency pressure system of the present utility model by two cover hydraulic efficiency pressure systems with the use of, wherein a set of hydraulic efficiency pressure system is made up of double-direction gearpump and drawback cylinder, and another set of hydraulic efficiency pressure system is by fuel transfer pump, energy storage and arrest oil cylinder and form.
Fuel transfer pump carries out oil transportation work under the drive of motor, but the oil outlet end due to fuel transfer pump is connected with energy storage and pressure relay, due to the control of the relay that is stressed, when the oil pressure in oil circuit reaches its setting value, disable motor, makes fuel transfer pump carry out service intermittent.Because stroke valve is in closed condition, hydraulic oil is transported in energy storage and stores, and makes it be in full oil pressure state always, can draw the oil pressure value in energy storage from compression indicator.In addition when in oil circuit, oil pressure is too high, then release from blowdown valve.
Double-direction gearpump is connected with friction wheel, because friction wheel is provided on belt, is rotated with belt by the friction force between friction wheel and belt, and when namely belt runs, friction wheel rotates together and drives double-direction gearpump to carry out work.When band conveyor normally runs, friction wheel rotates forward evenly with belt, and double-direction gearpump also rotates forward thereupon, gets back to fuel tank again after being pumped by the hydraulic oil in fuel tank from the other end, forms a circulation.Now drawback cylinder is failure to actuate, and hydraulic efficiency pressure system is not triggered.And when band conveyor produces skidding and reverses, friction wheel carries out low speed backwards rotation with belt, then the changing thereupon turning to into and out of oily port of double-direction gearpump, namely original oil inlet end becomes oil outlet end, and original oil outlet end becomes oil inlet end, the hydraulic oil of fuel tank enters drawback cylinder by the first check valve after double-direction gearpump.But due to rotating speed and the retrograde rotation deficiency of time of friction wheel, pressure and the flow of hydraulic oil are less, and cannot overcome the spring force of drawback cylinder, and drawback cylinder is failure to actuate.Only have when band conveyor generation broken belt accident, friction wheel is with belt backwards rotation rapidly, now fluid is under the effect of double-direction gearpump, control to enter drawback cylinder with certain pressure and flow velocity by check valve, when the pressure of hydraulic oil overcomes its spring force, then the piston rod of drawback cylinder stretches out, contact with stroke valve and trigger stroke valve, then get through oil circuit, energy storage and fuel transfer pump work simultaneously, to system fuel feeding, make to arrest oil cylinder and carry out quick action, drive treadmill to move down fast and catch broken belt together with adapter plate.
Owing to being associated with governor valve at the oil inlet end of arresting oil cylinder, make two to arrest oil cylinder synchronization action, the two ends of broken belt can be arrested rapidly, avoid transported material and glide and produce serious consequence.
And due to arresting of producing when producing low speed skidding when hydraulic efficiency pressure system of the present utility model completely solves when belt startup and brakes by mistake, improve reliability and the accuracy of cAN _ SNture, meet the needs of Mine Safety in Production.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the utility model hydraulic schematic;
In figure: 1-fuel tank, 2 fuel transfer pumps, 3-motor, 4-pressure relay, 5-first check valve, 5-2 second check valve, 6-drawback cylinder, 7-stroke valve, 8-arrests oil cylinder, 9-governor valve, 10-energy storage, 11-compression indicator, 12-blowdown valve, 13-double-direction gearpump.
Detailed description of the invention
As shown in Figure 1, a kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt, comprises belt and is fixedly arranged on two straps at two ends bottom belt, to be positioned at above belt symmetrically with strap to be provided with ambulatory splint; Described two ambulatory splints respectively connect arrests oil cylinder 8, described in arrest oil cylinder 8 oil inlet end be connected with the oil outlet end of stroke valve 7, the oil inlet end of described stroke valve 7 is connected with fuel tank 1 by fuel transfer pump 2, and fuel transfer pump 2 is driven by motor 3; Described belt is provided with and runs and the friction wheel of rotation with belt, and the output shaft of described friction wheel is connected with double-direction gearpump 13; One end hydraulic fluid port of described double-direction gearpump 13 is connected with fuel tank 1, and other end hydraulic fluid port is connected with drawback cylinder 6 with fuel tank 1 respectively; The piston rod of described drawback cylinder 6 docks with described stroke valve 7.
Further, the first check valve 5-1 is provided with between described double-direction gearpump 13 and drawback cylinder 6.
Further, described oil transportation delivery side of pump is also connected to blowdown valve 12, energy storage 10 and pressure relay 4; Described energy storage 10 limit is provided with compression indicator 11.
Further, the oil inlet end of arresting oil cylinder 8 described in is parallel with the second check valve 5-2 and governor valve 9.
During work, fuel transfer pump 2 carries out oil transportation work under the drive of motor 3, and due to the control of the relay 4 that is stressed, when the oil pressure in oil circuit reaches its setting value, disable motor 3, makes fuel transfer pump 2 carry out service intermittent.Because stroke valve 7 is in closed condition, hydraulic oil is transported in energy storage 10 and stores, and is in full oil pressure state always.
Double-direction gearpump 13 is connected with friction wheel, and friction wheel rotates together with belt and drives double-direction gearpump 13 to carry out work.When band conveyor normally runs, friction wheel rotates forward evenly with belt, and double-direction gearpump 13 also rotates forward thereupon, is added to fuel tank 1 again after being pumped by the hydraulic oil of fuel tank 1 li from the other end, forms a circulation.When band conveyor produces skidding and reverses, friction wheel carries out low speed backwards rotation with belt, then the changing thereupon turning to into and out of oily port of double-direction gearpump 13, namely original oil inlet end becomes oil outlet end, and original oil outlet end becomes oil inlet end, the hydraulic oil of fuel tank 1 is entered in drawback cylinder 6 by the first check valve 5-1 after double-direction gearpump 13.But due to rotating speed and the retrograde rotation deficiency of time of friction wheel, pressure and the flow of hydraulic oil are less, and cannot overcome the spring force of drawback cylinder 6, and drawback cylinder 6 is failure to actuate.Only have when band conveyor generation broken belt accident, friction wheel is with belt backwards rotation rapidly, now fluid is under the effect of double-direction gearpump 13, entered in drawback cylinder 6 with certain pressure and flow velocity by the control of the first check valve 5-1 and overcome its spring force, the piston rod of drawback cylinder 6 stretches out, contact with stroke valve 7 and trigger stroke valve 7, then get through oil circuit, energy storage 10 and fuel transfer pump 2 work simultaneously, hydraulic oil enters two fast and arrests in oil cylinder 8, make its quick action, driving activity is flat catches broken belt together with adapter plate.
Above-described embodiment is not limited only to protection domain of the present utility model, allly modifies based on basic thought of the present utility model or all belonging in protection domain of the present utility model of changing.
Claims (5)
1. for the intelligent hydraulic system that coal mine leather belt conveyer broken-belt is arrested, comprise belt and be fixedly arranged on two straps at two ends bottom belt, being positioned at above belt and symmetrically with strap being provided with ambulatory splint; It is characterized in that: described two ambulatory splints respectively connect arrests oil cylinder, described in arrest oil cylinder the oil outlet end of oil inlet end and stroke valve be connected, the oil inlet end of described stroke valve is connected with fuel tank by fuel transfer pump; Described belt is provided with and runs and the friction wheel of rotation with belt, and the output shaft of described friction wheel is connected with double-direction gearpump; One end hydraulic fluid port of described double-direction gearpump is connected with fuel tank by the first check valve, and other end hydraulic fluid port is connected with drawback cylinder with fuel tank respectively; The piston rod of described drawback cylinder docks with described stroke valve.
2. intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt according to claim 1, is characterized in that: be provided with the first check valve between described double-direction gearpump and drawback cylinder.
3. intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt according to claim 1, is characterized in that: described oil transportation delivery side of pump is also connected with energy storage and pressure relay; Described energy storage limit is provided with compression indicator.
4. intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt according to claim 1, is characterized in that: described in arrest oil cylinder oil inlet end be parallel with the second check valve and governor valve.
5. intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt according to claim 1, it is characterized in that: described fuel transfer pump is driven by motor, oil transportation delivery side of pump is also connected with blowdown valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065128.6U CN204400057U (en) | 2015-01-28 | 2015-01-28 | A kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065128.6U CN204400057U (en) | 2015-01-28 | 2015-01-28 | A kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt |
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| CN204400057U true CN204400057U (en) | 2015-06-17 |
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| CN201520065128.6U Expired - Fee Related CN204400057U (en) | 2015-01-28 | 2015-01-28 | A kind of intelligent hydraulic system of arresting for coal mine leather belt conveyer broken-belt |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035159A (en) * | 2015-07-21 | 2015-11-11 | 上海金桥中工电动叉车公司 | Double-power-source output equipment and power system of electric vehicle with accessory device |
| CN106185243A (en) * | 2015-06-23 | 2016-12-07 | 江苏师范大学 | A kind of Coal Transportation band protection device and method of work thereof |
| CN108131414A (en) * | 2017-12-06 | 2018-06-08 | 同济大学 | Attention problems buffer unit |
| CN109305530A (en) * | 2018-09-28 | 2019-02-05 | 江苏师范大学 | A kind of belt conveyor is disconnected with hydraulic capturing system |
-
2015
- 2015-01-28 CN CN201520065128.6U patent/CN204400057U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106185243A (en) * | 2015-06-23 | 2016-12-07 | 江苏师范大学 | A kind of Coal Transportation band protection device and method of work thereof |
| CN105035159A (en) * | 2015-07-21 | 2015-11-11 | 上海金桥中工电动叉车公司 | Double-power-source output equipment and power system of electric vehicle with accessory device |
| CN108131414A (en) * | 2017-12-06 | 2018-06-08 | 同济大学 | Attention problems buffer unit |
| CN109305530A (en) * | 2018-09-28 | 2019-02-05 | 江苏师范大学 | A kind of belt conveyor is disconnected with hydraulic capturing system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160128 |
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| EXPY | Termination of patent right or utility model |