CN104514854A - Hydraulic system for automatic tensioning device of belt pulley - Google Patents
Hydraulic system for automatic tensioning device of belt pulley Download PDFInfo
- Publication number
- CN104514854A CN104514854A CN201310459700.2A CN201310459700A CN104514854A CN 104514854 A CN104514854 A CN 104514854A CN 201310459700 A CN201310459700 A CN 201310459700A CN 104514854 A CN104514854 A CN 104514854A
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- CN
- China
- Prior art keywords
- oil hydraulic
- valve
- selector valve
- hydraulic pump
- hydraulic cylinder
- 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.)
- Pending
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Classifications
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
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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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
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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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/14—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley
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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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a hydraulic system for an automatic tensioning device of a belt pulley. The hydraulic system comprises a hydraulic cylinder, a hydraulic pump, an electromagnetic proportion valve block, an energy storing device and a pressure relay; an oil outlet of the hydraulic pump respectively communicates with the energy storing device and a first working end port of a second directional valve; a second working end port of the second directional valve communicates with a rod port of the hydraulic cylinder; a head port of the hydraulic cylinder communicates with a third working end port of the second directional valve; a fourth working end port of the second directional valve communicates with an oil tank; the rod port of the hydraulic cylinder communicates with the oil outlet of the hydraulic pump through the electromagnetic proportion valve block, a first directional valve and a third directional valve in a sequence, wherein the first directional valve and the third directional valve are connected in parallel; a pressure relay is mounted at an end port of the energy storing device. The hydraulic system for the automatic tensioning device of the belt pulley has the characteristics of being reasonable in design, capable of adaptive tensioning, high in adaptability and stability, high in automation degree, high in intelligent degree, long in service life, and wide in applicable scope.
Description
Technical field
The invention belongs to hydraulic driving technical field, relate to a kind of hydraulic system, be specifically related to a kind of hydraulic system for drive pulley auto-tensioning.
Background technique
Along with China's mining and metallurgy industry are showing improvement or progress day by day, Belt Conveyors is constantly towards high speed, long distance, large conveying quantity and powerful future development, the dynamic characteristic of belt conveyor system becomes increasingly conspicuous, and the requirement of Belt Conveyors to pulley tensioner is more and more higher.Tension device will realize automatically making quick response according to the different running statees of line belt, to overcome the hysteresis quality of line belt, thus effectively ensures the normal operation of Belt Conveyors.At present, in reality, widely used tension device has gravity takeup, fixed tension device and hydraulic type tensioning means etc., but these tension device all can not realize self adaption tensioning.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, provide a kind of belt pulley automatic takeup hydraulic system, it is reasonable in design, can realize self adaption tensioning, by force, automaticity is very high for adaptability and stability, intelligence degree is high, long service life, applied widely.
For achieving the above object, the technical solution used in the present invention is: a kind of belt pulley automatic takeup hydraulic system, comprise and reach the oil hydraulic cylinder of appropriate tensile strength for adjusting mobile belt wheel position to make the belt between fixed pulley and movable belt wheel and provide the oil hydraulic pump of high pressure liquid force feed for described oil hydraulic cylinder, it is characterized in that: also comprise the electromagnetic proportional valve group for adjusting described oil hydraulic cylinder oil-feed speed, for system storage high pressure liquid force feed is with the pressure relay preventing the accumulator of described oil hydraulic pump frequent starting and automatically control the startup of described oil hydraulic pump according to the force value of hydraulic oil in described accumulator or shut down, described oil hydraulic pump oil outlet respectively described accumulator is communicated with the first working port of described selector valve two, second working port of described selector valve two is communicated with described oil hydraulic cylinder rod chamber, described oil hydraulic cylinder rodless cavity is communicated with the 3rd working port of described selector valve two, 4th working port of described selector valve two is communicated with fuel tank, described oil hydraulic cylinder rod chamber is communicated with the oil outlet of selector valve three with described oil hydraulic pump through described electromagnetic proportional valve group and the selector valve one that is connected in parallel successively, and described pressure relay is arranged on described accumulator port.
Above-mentioned belt pulley automatic takeup hydraulic system, is characterized in that: the oil outlet place of described oil hydraulic pump is provided with one-way valve and relief valve, and the inlet port place of described oil hydraulic pump is provided with oil purifier.
Above-mentioned belt pulley automatic takeup hydraulic system, is characterized in that: described selector valve one and described selector valve three are bi-bit bi-pass solenoid directional control valve, and described selector valve two is three-position four-way electromagnetic directional valve.
The present invention compared with prior art has the following advantages:
(1) this belt pulley automatic takeup is very reasonable by design of Hydraulic System, adopts mechanical, electrical, liquid integrated design, can realize self adaption tensioning, and by force, automaticity is very high for adaptability and stability.
(2) pressure relay and accumulator is provided with in this belt pulley automatic takeup hydraulic system; pressure relay can according to the automatic hydraulic control pump startup of the force value of hydraulic oil in accumulator or shutdown; thus preventing the frequent starting of oil hydraulic pump, intelligence degree is high.
(3) electromagnetic proportional valve group is provided with in this belt pulley automatic takeup hydraulic system, can the oil-feed speed of hydraulic control cylinder automatically, system hydraulic shock is little, and working life strengthens greatly.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is hydraulic control principle schematic of the present invention.
Description of reference numerals:
1-fuel tank; 2-oil hydraulic pump; 3-one-way valve;
4-pressure relay; 5-accumulator; 6-selector valve one;
7-electromagnetic proportional valve group; 8-fixed pulley; 9-belt;
10-movable belt wheel; 11-oil hydraulic cylinder; 12-selector valve two.
13-selector valve three; 14-relief valve; 15-oil purifier.
Embodiment
A kind of belt pulley automatic takeup hydraulic system as shown in Figure 1, comprise and reach the oil hydraulic cylinder 11 of appropriate tensile strength for adjusting movable belt wheel 10 position to make the belt 9 between fixed pulley 8 and movable belt wheel 10 and provide the oil hydraulic pump 2 of high pressure liquid force feed for described oil hydraulic cylinder 11, also comprise the electromagnetic proportional valve group 7 for adjusting described oil hydraulic cylinder 11 oil-feed speed, for system storage high pressure liquid force feed is to prevent the accumulator 5 of described oil hydraulic pump 2 frequent starting and automatically to control according to the force value of hydraulic oil in described accumulator 5 pressure relay 4 that described oil hydraulic pump 2 starts or shut down, described oil hydraulic pump 2 oil outlet respectively described accumulator 5 is communicated with the A mouth of described selector valve 2 12, the B mouth of described selector valve 2 12 is communicated with described oil hydraulic cylinder 11 rod chamber, described oil hydraulic cylinder 11 rodless cavity is communicated with the C mouth of described selector valve 2 12, the D mouth of described selector valve 2 12 is communicated with fuel tank 1, described oil hydraulic cylinder 11 rod chamber is communicated with the oil outlet of selector valve 3 13 with described oil hydraulic pump 2 through described electromagnetic proportional valve group 7 and the selector valve 1 that is connected in parallel successively, and described pressure relay 4 is arranged on described accumulator 5 port.
In the present embodiment, the oil outlet place of described oil hydraulic pump 2 is provided with one-way valve 3 and relief valve 14, the inlet port place of described oil hydraulic pump 2 is provided with oil purifier 15.
In the present embodiment, described selector valve 1 and described selector valve 3 13 are bi-bit bi-pass solenoid directional control valve, and described selector valve 2 12 is three-position four-way electromagnetic directional valve.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solution of the present invention.
Claims (3)
1. a belt pulley automatic takeup hydraulic system, comprise for adjusting movable belt wheel (10) position to make the belt (9) between fixed pulley (8) and movable belt wheel (10) reach the oil hydraulic cylinder (11) of appropriate tensile strength and to be the oil hydraulic pump (2) that described oil hydraulic cylinder (11) provides high pressure liquid force feed, it is characterized in that: also comprise the electromagnetic proportional valve group (7) for adjusting described oil hydraulic cylinder (11) oil-feed speed, for system storage high pressure liquid force feed is with the pressure relay (4) preventing the accumulator (5) of described oil hydraulic pump (2) frequent starting and automatically control described oil hydraulic pump (2) startup according to the force value of described accumulator (5) interior hydraulic oil or shut down, described oil hydraulic pump (2) oil outlet respectively described accumulator (5) is communicated with the first working port of described selector valve two (12), second working port of described selector valve two (12) is communicated with described oil hydraulic cylinder (11) rod chamber, described oil hydraulic cylinder (11) rodless cavity is communicated with the 3rd working port of described selector valve two (12), 4th working port of described selector valve two (12) is communicated with fuel tank (1), described oil hydraulic cylinder (11) rod chamber is communicated with the oil outlet of selector valve three (13) with described oil hydraulic pump (2) through described electromagnetic proportional valve group (7) and the selector valve one (6) that is connected in parallel successively, described pressure relay (4) is arranged on described accumulator (5) port.
2. according to belt pulley automatic takeup hydraulic system according to claim 1, it is characterized in that: the oil outlet place of described oil hydraulic pump (2) is provided with one-way valve (3) and relief valve (14), and the inlet port place of described oil hydraulic pump (2) is provided with oil purifier (15).
3. according to belt pulley automatic takeup hydraulic system according to claim 1, it is characterized in that: described selector valve one (6) and described selector valve three (13) are bi-bit bi-pass solenoid directional control valve, described selector valve two (12) is three-position four-way electromagnetic directional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310459700.2A CN104514854A (en) | 2013-09-26 | 2013-09-26 | Hydraulic system for automatic tensioning device of belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310459700.2A CN104514854A (en) | 2013-09-26 | 2013-09-26 | Hydraulic system for automatic tensioning device of belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104514854A true CN104514854A (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310459700.2A Pending CN104514854A (en) | 2013-09-26 | 2013-09-26 | Hydraulic system for automatic tensioning device of belt pulley |
Country Status (1)
| Country | Link |
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| CN (1) | CN104514854A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763582A (en) * | 2016-12-29 | 2017-05-31 | 江苏省无锡探矿机械总厂有限公司 | Chain tensioning mechanism for drilling machine |
| CN109178798A (en) * | 2018-09-07 | 2019-01-11 | 广州焙欧机械设备有限公司 | A kind of continuous tunnel furnace hydraulic pressure tension system |
| CN109458365A (en) * | 2018-12-24 | 2019-03-12 | 江苏徐工工程机械研究院有限公司 | Construction machinery hydraulic system and engineering machinery |
| CN110475731A (en) * | 2017-01-16 | 2019-11-19 | 蒂森克虏伯工业解决方案(美国)公司 | Hydraulic pressure tension system for conveyer |
-
2013
- 2013-09-26 CN CN201310459700.2A patent/CN104514854A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763582A (en) * | 2016-12-29 | 2017-05-31 | 江苏省无锡探矿机械总厂有限公司 | Chain tensioning mechanism for drilling machine |
| CN110475731A (en) * | 2017-01-16 | 2019-11-19 | 蒂森克虏伯工业解决方案(美国)公司 | Hydraulic pressure tension system for conveyer |
| CN109178798A (en) * | 2018-09-07 | 2019-01-11 | 广州焙欧机械设备有限公司 | A kind of continuous tunnel furnace hydraulic pressure tension system |
| CN109458365A (en) * | 2018-12-24 | 2019-03-12 | 江苏徐工工程机械研究院有限公司 | Construction machinery hydraulic system and engineering machinery |
| CN109458365B (en) * | 2018-12-24 | 2024-02-02 | 江苏徐工工程机械研究院有限公司 | Engineering machinery hydraulic system and engineering machinery |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |
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| WD01 | Invention patent application deemed withdrawn after publication |