CN202845491U - Hydraulic control system for belt wrapper tensioning device - Google Patents
Hydraulic control system for belt wrapper tensioning device Download PDFInfo
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- CN202845491U CN202845491U CN 201220483786 CN201220483786U CN202845491U CN 202845491 U CN202845491 U CN 202845491U CN 201220483786 CN201220483786 CN 201220483786 CN 201220483786 U CN201220483786 U CN 201220483786U CN 202845491 U CN202845491 U CN 202845491U
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Abstract
The utility model provides a hydraulic control system for a belt wrapper tensioning device. The hydraulic control system comprises a pump source, a control device and an actuating device, wherein the control device comprises a main oil-way control device and a remote control device; the main oil-way control device comprises a first reversing valve; the first reversing valve is connected with the pump source and the actuating device; the remote control device comprises a pilot overflow valve, a second reversing valve, a first plug-in overflow valve and a second plug-in overflow valve; the pilot overflow valve is arranged on an oil way between the first reversing valve and the actuating device; the second reversing valve is connected to a control oil way of the pilot overflow valve; the first plug-in overflow valve and the second plug-in overflow valve are connected on an oil return path between the second reversing valve and the pump source; and the actuating device comprises a hydraulic cylinder. According to the hydraulic control system, the number of hydraulic elements is reduced, the cost is reduced, and the sensitivity and stability of the whole system are improved.
Description
Technical field
The utility model belongs to and relates to a kind of hydraulic control system that the strap rolling-assisting device swelling device is controlled, and belongs to the hydraulic control system technical field.
Background technology
Belt tension power is being required stricter, and when needing often to use two kinds of different pressure to control, hydraulic expansion mechanism will more complicated.Original hydraulic expansion mechanism principle needs more Hydraulic Elements, not only makes design cost and financial cost all higher, and has inconvenience, the situation that system is stable not safeguarded.
Summary of the invention
Problem to be solved in the utility model provides the strap rolling-assisting device hydraulic control system of tension device that a kind of cost is low, have high sensitivity and stability.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of hydraulic control system of strap rolling-assisting device swelling device, comprise pumping source, control device and actuating unit, and described control device comprises working connection control device and remote control; Described working connection control device is provided with the first reversal valve, and described the first reversal valve connects pumping source and actuating unit; Described remote control comprises pilot operated compound relief valve, the second reversal valve, the first plug-in type overflow valve and the second plug-in type overflow valve, described pilot operated compound relief valve is installed on the oil circuit between the first reversal valve and actuating unit, described the second reversal valve is connected on the oil circuit control of pilot operated compound relief valve, and described the first plug-in overflow valve and the second plug-in overflow valve are connected in parallel on the oil return line between the second reversal valve and the pumping source; Described actuating unit comprises a hydraulic cylinder.
Further, described the first reversal valve is the 3-position 4-way solenoid directional control valve.
Further, described the second reversal valve is the two-position four-way solenoid directional control valve.
Further, the oil-feed oil circuit between pumping source and the first reversal valve is provided with a pressure-reducing valve.
Further, two oil circuits between described the first reversal valve and hydraulic cylinder are equipped with a hydraulic control one-way valve, and described pilot operated compound relief valve is on the oil circuit between hydraulic control one-way valve and the hydraulic cylinder.
Further, described oil circuit between hydraulic control one-way valve and hydraulic cylinder is equipped with an one-way throttle valve, and described pilot operated compound relief valve is between one-way throttle valve and hydraulic cylinder.
Further, be provided with a check valve between described pilot operated compound relief valve and the second reversal valve, the direction of check valve is hydraulic oil is flowed to the second reversal valve by pilot operated compound relief valve oil-in place.
Further, be connected a pressure-reducing valve between described check valve and the second reversal valve.
Further, described the first plug-in overflow valve and the second plug-in overflow valve can be replaced by the through type overflow valve.
Further, described hydraulic cylinder is single piston single lever-type hydraulic cylinder.
Advantage and the good effect that the utlity model has are: adopt technique scheme, not only reduce Hydraulic Elements quantity, reduced cost, and improved sensitivity and the stability of whole system.
Description of drawings
Fig. 1 is the hydraulic control system structure principle chart that original strap rolling-assisting device is put into device;
Fig. 2 is structure principle chart of the present utility model.
Among the figure:
1. piloted reducer 2.J type solenoid directional control valve 3. hydraulic control one-way valves
4. one-way throttle valve 5. check valve 6.D type solenoid directional control valves
7. the first plug-in type overflow valve 8. second plug-in type overflow valves 9. pilot operated compound relief valve a
10. single piston single pole hydraulic cylinder 11. pilot operated compound relief valve b 12. pilot operated compound relief valve c
The specific embodiment
Enumerating a specific embodiment below in conjunction with accompanying drawing is further elaborated the utility model.
Former belt wrapper belt tensioner cylinder hydraulic system structure schematic diagram as shown in Figure 1, two piloted reducers 1 transfer to respectively suitable pressure during system works, pilot operated compound relief valve b and pilot operated compound relief valve c regulate simultaneously; For example the left side piloted reducer is transferred to 10Mpa, the right side piloted reducer is adjusted to 6Mpa, left side pilot operated compound relief valve b is adjusted to 10.5Mpa, right side pilot operated compound relief valve c is adjusted to 6.5Mpa, the right working position of left side J type solenoid directional control valve gets electricly when the higher expanding force of needs, and wherein left side pilot operated compound relief valve b plays the effect of the very stable rodless cavity pressure of protection; When the needs lower pressure was worked, the right side station of middle D type solenoid directional control valve got electric, and the J type magnetic valve right side station on while right side gets electric, and right side pilot operated compound relief valve c plays the effect of protection and voltage stabilizing.In this system, different pressure control needs respectively with two groups of valve controls, so cause high pressure and low pressure to switch more loaded down with trivial details, time is longer, because piloted reducer and pilot operated compound relief valve are regulated separately respectively, error is larger, thereby affects sensitivity and the stability of system simultaneously.
As shown in Figure 2, present embodiment comprises pumping source, control device and actuating unit, and control device comprises working connection control device and remote control; Actuating unit is single piston single lever-type hydraulic cylinder 10 in the present embodiment; The working connection control device is provided with a J type solenoid directional control valve 2(3-position 4-way solenoid directional control valve), J type solenoid directional control valve 2 connects pumping source and hydraulic cylinder; Remote control comprises a pilot operated compound relief valve a, a D type solenoid directional control valve 6(two-position four-way solenoid directional control valve), first a plug-in type overflow valve 7 and second a plug-in type overflow valve 8, pilot operated compound relief valve a is installed on the oil circuit between J type solenoid directional control valve and the hydraulic cylinder, D type solenoid directional control valve 6 is connected on the oil circuit control of pilot operated compound relief valve a, and the first plug-in overflow valve 7 and the second plug-in overflow valve 8 are connected in parallel on the oil return line of D type solenoid directional control valve 6 and pumping source.
In the present embodiment, the oil-feed oil circuit between pumping source and the J type solenoid directional control valve 2 is provided with a piloted reducer 1; The force value of oil-feed oil circuit has been guaranteed in the setting of piloted reducer 1 effectively, has guaranteed the security of whole system.
In the present embodiment, being connected of 8 of pilot operated compound relief valve a, D type magnetic valve 6, the first plug-in overflow valve 7 and the second plug-in overflow valves realized two-stage pressure-regulating, effectively realize the flexible modulation to the expanding force of strap rolling-assisting device, and further guaranteed the security of whole hydraulic circuit.
In the present embodiment, the oil circuit from J type solenoid directional control valve 2 to hydraulic cylinder 10 is connected with hydraulic control one-way valve 3, one-way throttle valve 4 in turn, and pilot operated compound relief valve a is on the oil circuit of the hydraulic cylinder rodless cavity between one-way throttle valve 4 and the hydraulic cylinder.
In the present embodiment, also be provided with a check valve 5 between pilot operated compound relief valve a and the D type solenoid directional control valve 6, the direction of check valve 5 is hydraulic oil is flowed to D type solenoid directional control valve 6 by pilot operated compound relief valve a oil-in places; Be connected with piloted reducer 1 between check valve 5 and the D type solenoid directional control valve 6.
The operation principle of present embodiment: during work the first plug-in type overflow valve 7 is adjusted to 10Mpa, the second plug-in type overflow valve 8 is adjusted to 3Mpa, and pilot operated compound relief valve a and piloted reducer 1 all are adjusted to 13Mpa; During tension mechanism work, the right side station of J type solenoid directional control valve 2 gets electric, and tensioner cylinder rodless cavity passes into pressure oil; D type solenoid directional control valve 6 right side stations get electricly when the less expanding force of needs, and the left side station of D type solenoid directional control valve 6 gets electricly when needing larger expanding force, can realize the mutual switching of different expanding forces.
It is more stable when the setting of hydraulic control one-way valve and one-way throttle valve makes the work of whole system control single unit system.
The selection standard of hydraulic control valve is European standard in the present embodiment.
In sum, a plug-in type overflow valve is controlled one group of piloted reducer and pilot operated compound relief valve, and the opening pressure of check valve 5 is 0.3Mpa, so this structure makes the setting pressure of pilot operated compound relief valve and the actual pressure of rodless cavity differ very little, therefore sensitiveer, system is more stable, has reduced cost, and makes system more stable.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (10)
1. the hydraulic control system of a strap rolling-assisting device swelling device comprises pumping source, control device and actuating unit, it is characterized in that: described control device comprises working connection control device and remote control; Described working connection control device is provided with the first reversal valve, and described the first reversal valve connects pumping source and actuating unit; Described remote control comprises pilot operated compound relief valve, the second reversal valve, the first plug-in type overflow valve and the second plug-in type overflow valve, described pilot operated compound relief valve is installed on the oil circuit between the first reversal valve and actuating unit, described the second reversal valve is connected on the oil circuit control of pilot operated compound relief valve, and described the first plug-in overflow valve and the second plug-in overflow valve are connected in parallel on the oil return line between the second reversal valve and the pumping source; Described actuating unit comprises a hydraulic cylinder.
2. the hydraulic control system of strap rolling-assisting device swelling device according to claim 1, it is characterized in that: described the first reversal valve is the 3-position 4-way solenoid directional control valve.
3. the hydraulic control system of strap rolling-assisting device swelling device according to claim 1, it is characterized in that: described the second reversal valve is the two-position four-way solenoid directional control valve.
4. the hydraulic control system of strap rolling-assisting device swelling device according to claim 1, it is characterized in that: the oil-feed oil circuit between pumping source and the first reversal valve is provided with a pressure-reducing valve.
5. the hydraulic control system of strap rolling-assisting device swelling device according to claim 1, it is characterized in that: two oil circuits between described the first reversal valve and hydraulic cylinder are equipped with a hydraulic control one-way valve, and described pilot operated compound relief valve is on the oil circuit between hydraulic control one-way valve and the hydraulic cylinder.
6. the hydraulic control system of strap rolling-assisting device swelling device according to claim 5, it is characterized in that: described oil circuit between hydraulic control one-way valve and hydraulic cylinder is equipped with an one-way throttle valve, and described pilot operated compound relief valve is between one-way throttle valve and hydraulic cylinder.
7. the hydraulic control system of strap rolling-assisting device swelling device according to claim 1, it is characterized in that: be provided with a check valve between described pilot operated compound relief valve and the second reversal valve, the direction of check valve is hydraulic oil is flowed to the second reversal valve by pilot operated compound relief valve oil-in place.
8. the hydraulic control system of strap rolling-assisting device swelling device according to claim 7 is characterized in that: be connected a pressure-reducing valve between described check valve and the second reversal valve.
9. the hydraulic control system of strap rolling-assisting device swelling device according to claim 1, it is characterized in that: described the first plug-in overflow valve and the second plug-in overflow valve can be replaced by the through type overflow valve.
10. the hydraulic control system of strap rolling-assisting device swelling device according to claim 1, it is characterized in that: described hydraulic cylinder is single piston single lever-type hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483786 CN202845491U (en) | 2012-09-20 | 2012-09-20 | Hydraulic control system for belt wrapper tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483786 CN202845491U (en) | 2012-09-20 | 2012-09-20 | Hydraulic control system for belt wrapper tensioning device |
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| Publication Number | Publication Date |
|---|---|
| CN202845491U true CN202845491U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220483786 Expired - Fee Related CN202845491U (en) | 2012-09-20 | 2012-09-20 | Hydraulic control system for belt wrapper tensioning device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658231A (en) * | 2013-11-05 | 2014-03-26 | 中色科技股份有限公司 | Hydraulic control loop of cantilever-type recoiling machine pressing (ironing) roller device |
| CN105889159A (en) * | 2016-04-25 | 2016-08-24 | 天津优瑞纳斯智能装备有限公司 | Hydraulic system with ultra-high pressure outputting capacity |
| CN107131169A (en) * | 2017-06-26 | 2017-09-05 | 北京京诚之星科技开发有限公司 | Movable support rotating hydraulic control loop of coiling machine |
| CN107218259A (en) * | 2017-06-30 | 2017-09-29 | 天津市中重科技工程有限公司 | A kind of Novel connecting shaft bracket hydraulic control system |
| CN107246044A (en) * | 2017-06-13 | 2017-10-13 | 徐州徐工挖掘机械有限公司 | Chassis tensioner valve group, multi-buffer hydraulic expansion system and excavator |
| CN109779990A (en) * | 2019-01-28 | 2019-05-21 | 重庆邮电大学 | A kind of steel pipe water quenching device compression hydraulic control circuit |
-
2012
- 2012-09-20 CN CN 201220483786 patent/CN202845491U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658231A (en) * | 2013-11-05 | 2014-03-26 | 中色科技股份有限公司 | Hydraulic control loop of cantilever-type recoiling machine pressing (ironing) roller device |
| CN103658231B (en) * | 2013-11-05 | 2017-01-04 | 中色科技股份有限公司 | A kind of hydraulic control circuit of cantilevered coiler press-roller/ironing roller device |
| CN105889159A (en) * | 2016-04-25 | 2016-08-24 | 天津优瑞纳斯智能装备有限公司 | Hydraulic system with ultra-high pressure outputting capacity |
| CN105889159B (en) * | 2016-04-25 | 2018-01-23 | 天津优瑞纳斯智能装备有限公司 | A kind of hydraulic system for possessing super-pressure fan-out capability |
| CN107246044A (en) * | 2017-06-13 | 2017-10-13 | 徐州徐工挖掘机械有限公司 | Chassis tensioner valve group, multi-buffer hydraulic expansion system and excavator |
| CN107131169A (en) * | 2017-06-26 | 2017-09-05 | 北京京诚之星科技开发有限公司 | Movable support rotating hydraulic control loop of coiling machine |
| CN107131169B (en) * | 2017-06-26 | 2019-07-26 | 北京京诚之星科技开发有限公司 | Movable support rotating hydraulic control loop of coiling machine |
| CN107218259A (en) * | 2017-06-30 | 2017-09-29 | 天津市中重科技工程有限公司 | A kind of Novel connecting shaft bracket hydraulic control system |
| CN107218259B (en) * | 2017-06-30 | 2019-05-10 | 天津市中重科技工程有限公司 | A kind of Novel connecting shaft bracket hydraulic control system |
| CN109779990A (en) * | 2019-01-28 | 2019-05-21 | 重庆邮电大学 | A kind of steel pipe water quenching device compression hydraulic control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130403 Termination date: 20140920 |
|
| EXPY | Termination of patent right or utility model |