CN105668138A - Hydraulic control system for self-adaptive tension device of belt conveyor - Google Patents
Hydraulic control system for self-adaptive tension device of belt conveyor Download PDFInfo
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- CN105668138A CN105668138A CN201410673813.7A CN201410673813A CN105668138A CN 105668138 A CN105668138 A CN 105668138A CN 201410673813 A CN201410673813 A CN 201410673813A CN 105668138 A CN105668138 A CN 105668138A
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- reversal valve
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Abstract
The invention discloses a hydraulic control system for a self-adaptive tension device of a belt conveyor. The hydraulic control system comprises a hydraulic pump and a hydraulic cylinder. A rodless cavity of the hydraulic cylinder communicates with an opening C of a second reversing valve. A rod cavity of the hydraulic cylinder communicates with an opening B of the second reversing valve. An opening A of the second reversing valve communicates with an oil outlet of the hydraulic pump. The oil outlet of the hydraulic pump sequentially passes through a first reversing valve, a third reserving valve and an electromagnetism proportional valve group to communicate with the rod cavity of the hydraulic cylinder, and the first reversing valve and the third reserving valve are connected in parallel. An energy accumulator is arranged at the oil outlet of the hydraulic pump. A pressure relay is arranged at a port of the energy accumulator. The hydraulic control system for the self-adaptive tension device of the belt conveyor has the following characteristics of being reasonable in design, capable of achieving self-adaptive tension, high in adaptability, stability, automation degree and intelligent degree, long in service life and wide in application range.
Description
Technical field
The invention belongs to hydraulic-driven technical field, relate to a kind of hydraulic system, be specifically related to a kind of hydraulic control system for points driving for belt conveyor alternate sheave self adaptation tensioning.
Background technology
Along with China's mining and metallurgy industry are showing improvement or progress day by day, ribbon conveyer constantly develops towards high speed, distance, large conveying quantity and powerful direction, the dynamic characteristic of belt conveyor system becomes increasingly conspicuous, and ribbon conveyer is more and more higher to the requirement of pulley tensioner. Tensioner to realize making quick response automatically according to the different running statuses of conveyer belt, to overcome the hysteresis quality of conveyer belt, thus being effectively ensured the properly functioning of ribbon conveyer. At present, in reality, widely used tensioner has gravity takeup and fixed tensioner etc., but these tensioners all can not realize self adaptation tensioning.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, the hydraulic control system of a kind of ribbon conveyer self adaptation tensioner is provided, it is reasonable in design, self adaptation tensioning can be realized, adaptability and stability are strong, and automaticity is significantly high, and intelligence degree is high, long service life, applied widely.
For achieving the above object, the technical solution used in the present invention is: the hydraulic control system of a kind of ribbon conveyer self adaptation tensioner, including hydraulic pump and for adjusting active belt wheel position so that belt between fixed pulley and movable belt wheel reaches the hydraulic cylinder of appropriate tensile strength, it is characterized in that: the rodless cavity of described hydraulic cylinder connects with the C mouth of reversal valve two, the rod chamber of described hydraulic cylinder connects with the B mouth of reversal valve two, the A mouth of described reversal valve two connects with the oil-out of described hydraulic pump, the D mouth of described reversal valve two connects with described fuel tank, the oil-out of described hydraulic pump sequentially passes through the reversal valve one being connected in parallel and connects with the rod chamber of described hydraulic cylinder with reversal valve three and described electromagnetic proportional valve group, the oil-out place of described hydraulic pump arranges promising system storage high pressure liquid force feed to prevent the accumulator of described hydraulic pump frequent starting, described accumulator port is provided with and automatically controls, according to the force value of hydraulic oil in described accumulator, the pressure switch that described hydraulic pump starts or shuts down.
The hydraulic control system of above-mentioned ribbon conveyer self adaptation tensioner, it is characterised in that: the oil-out place of described hydraulic pump is provided with check valve and overflow valve.
The hydraulic control system of above-mentioned ribbon conveyer self adaptation tensioner, it is characterised in that: the inlet port place of described hydraulic pump is provided with oil filter.
The hydraulic control system of above-mentioned ribbon conveyer self adaptation tensioner, it is characterised in that: described reversal valve one and described reversal valve three are bi-bit bi-pass solenoid directional control valve.
The hydraulic control system of above-mentioned ribbon conveyer self adaptation tensioner, it is characterised in that: described reversal valve two is three-position four-way electromagnetic directional valve.
The present invention compared with prior art has the advantage that
(1) hydraulic control system design of this ribbon conveyer self adaptation tensioner is very reasonable, adopts design mechanical, electrical, liquid integrated, it may be achieved self adaptation tensioning, adaptability and stability are strong, and automaticity is significantly high.
(2) it is provided with pressure switch and accumulator in the hydraulic control system of this ribbon conveyer self adaptation tensioner; pressure switch can automatically control hydraulic pump according to the force value of hydraulic oil in accumulator and starts or shut down; thus preventing the frequent starting of hydraulic pump, intelligence degree is high.
(3) being provided with electromagnetic proportional valve group in the hydraulic control system of this ribbon conveyer self adaptation tensioner, can automatically control the oil-feed speed of hydraulic cylinder, system hydraulic shock is little, and service life is greatly enhanced.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the hydraulic control principle schematic of the present invention.
Description of reference numerals:
1 fuel tank; 2 hydraulic pumps; 3 check valves;
4 pressure switches; 5 accumulators; 6 reversal valves one;
7 electromagnetic proportional valve groups; 8 fixed pulley; 9 belts;
10 movable belt wheels; 11 hydraulic cylinders; 12 reversal valves two.
13 reversal valves three; 14 overflow valves; 15 oil filters.
Detailed description of the invention
The hydraulic control system of a kind of ribbon conveyer self adaptation tensioner as shown in Figure 1, including hydraulic pump 2 and for adjusting movable belt wheel 10 position so that belt 9 between fixed pulley 8 and movable belt wheel 10 reaches the hydraulic cylinder 11 of appropriate tensile strength, the rodless cavity of described hydraulic cylinder 11 connects with the C mouth of reversal valve 2 12, the rod chamber of described hydraulic cylinder 11 connects with the B mouth of reversal valve 2 12, the A mouth of described reversal valve 2 12 connects with the oil-out of described hydraulic pump 2, the D mouth of described reversal valve 2 12 connects with described fuel tank 1, the oil-out of described hydraulic pump 2 sequentially passes through the reversal valve 1 being connected in parallel and connects with the rod chamber of described hydraulic cylinder 11 with reversal valve 3 13 and described electromagnetic proportional valve group 7, the oil-out place of described hydraulic pump 2 arranges promising system storage high pressure liquid force feed to prevent the accumulator 5 of described hydraulic pump 2 frequent starting, described accumulator 5 port is provided with and automatically controls, according to the force value of hydraulic oil in described accumulator 5, the pressure switch 4 that described hydraulic pump 2 starts or shuts down.
In the present embodiment, the oil-out place of described hydraulic pump 2 is provided with check valve 3 and overflow valve 14.
In the present embodiment, the inlet port place of described hydraulic pump 2 is provided with oil filter 15.
In the present embodiment, described reversal valve 1 and described reversal valve 3 13 are bi-bit bi-pass solenoid directional control valve.
In the present embodiment, described reversal valve 2 12 is three-position four-way electromagnetic directional valve.
The above; it it is only presently preferred embodiments of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation above example made according to the technology of the present invention essence, all still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. the hydraulic control system of a ribbon conveyer self adaptation tensioner, movable belt wheel (10) position is adjusted so that belt (9) between fixed pulley (8) with activity belt wheel (10) reaches the hydraulic cylinder (11) of appropriate tensile strength including hydraulic pump (2) and being used for, it is characterized in that: the rodless cavity of described hydraulic cylinder (11) connects with the C mouth of reversal valve two (12), the rod chamber of described hydraulic cylinder (11) connects with the B mouth of reversal valve two (12), the A mouth of described reversal valve two (12) connects with the oil-out of described hydraulic pump (2), the D mouth of described reversal valve two (12) connects with described fuel tank (1), the oil-out of described hydraulic pump (2) sequentially passes through the reversal valve one (6) being connected in parallel and connects with the rod chamber of described hydraulic cylinder (11) with reversal valve three (13) and described electromagnetic proportional valve group (7), the oil-out place of described hydraulic pump (2) arranges promising system storage high pressure liquid force feed to prevent the accumulator (5) of described hydraulic pump (2) frequent starting, described accumulator (5) port is provided with the force value according to described accumulator (5) interior hydraulic oil and automatically controls the pressure switch (4) that described hydraulic pump (2) starts or shuts down.
2. the hydraulic control system of the ribbon conveyer self adaptation tensioner described in claim 1, it is characterised in that: the oil-out place of described hydraulic pump (2) is provided with check valve (3) and overflow valve (14).
3. the hydraulic control system of the ribbon conveyer self adaptation tensioner described in claim 1, it is characterised in that: the inlet port place of described hydraulic pump (2) is provided with oil filter (15).
4. the hydraulic control system of the ribbon conveyer self adaptation tensioner described in claim 1, it is characterised in that: described reversal valve one (6) and described reversal valve three (13) are bi-bit bi-pass solenoid directional control valve.
5. the hydraulic control system of the ribbon conveyer self adaptation tensioner described in claim 1, it is characterised in that: described reversal valve two (12) is three-position four-way electromagnetic directional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673813.7A CN105668138A (en) | 2014-11-21 | 2014-11-21 | Hydraulic control system for self-adaptive tension device of belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673813.7A CN105668138A (en) | 2014-11-21 | 2014-11-21 | Hydraulic control system for self-adaptive tension device of belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105668138A true CN105668138A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673813.7A Pending CN105668138A (en) | 2014-11-21 | 2014-11-21 | Hydraulic control system for self-adaptive tension device of belt conveyor |
Country Status (1)
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| CN (1) | CN105668138A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225869A (en) * | 2017-06-26 | 2017-10-03 | 太仓市虹鹰印花有限公司 | A kind of stamp hydraulic drive motor |
| CN112551062A (en) * | 2020-11-20 | 2021-03-26 | 中国煤炭科工集团太原研究院有限公司 | Tensioning control valve for shuttle car scraper chain |
-
2014
- 2014-11-21 CN CN201410673813.7A patent/CN105668138A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225869A (en) * | 2017-06-26 | 2017-10-03 | 太仓市虹鹰印花有限公司 | A kind of stamp hydraulic drive motor |
| CN112551062A (en) * | 2020-11-20 | 2021-03-26 | 中国煤炭科工集团太原研究院有限公司 | Tensioning control valve for shuttle car scraper chain |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |
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| WD01 | Invention patent application deemed withdrawn after publication |