CN115163598B - Design of a hydraulic valve group for micro-contact control of roller cleaner of flat mill - Google Patents
Design of a hydraulic valve group for micro-contact control of roller cleaner of flat mill Download PDFInfo
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- CN115163598B CN115163598B CN202210815649.3A CN202210815649A CN115163598B CN 115163598 B CN115163598 B CN 115163598B CN 202210815649 A CN202210815649 A CN 202210815649A CN 115163598 B CN115163598 B CN 115163598B
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- valve
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- oil
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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
- 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
- F15B13/024—Pressure relief valves
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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
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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
- F15B13/027—Check valves
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a hydraulic valve set design for micro-contact control of a leveling machine roller cleaner, which comprises a hydraulic oil way, a hydraulic oil cylinder, a servo valve, a back pressure valve and a pressure sensor, wherein the hydraulic oil cylinder is provided with a rod cavity and a rodless cavity, the back pressure valve is set to be a constant pressure value, when the leveling machine roller cleaner works, the servo valve is electrified to increase the hydraulic output of the rodless cavity, so that the pressure value in the rodless cavity is greater than the pressure set by the back pressure valve, and the hydraulic rod is pushed to extend, and when the leveling machine roller cleaner is stopped, the servo valve is not electrified, hydraulic pressure is output to the rod cavity, and the hydraulic rod is pushed to shrink. The invention compensates the wiping force through the back pressure valve, so that the adjusting pressure can be adjusted only by overcoming the back pressure, and the adjusting pressure can be increased to be set by adopting a common hydraulic valve. Therefore, the invention reduces the technical requirement on the hydraulic valve parts, so that all the hydraulic valve parts adopt standard products, and the manufacturing cost is reduced.
Description
Technical Field
The invention belongs to the field of steel strip processing production line equipment, and particularly relates to a hydraulic valve set design for micro-contact control of a temper mill roller cleaner.
Background
The two-roller leveling machine is commonly used for finishing and other subsequent procedures in stainless steel production, a part of pollutants such as rolling lubricating oil and the like can remain on the surface of a steel belt after the steel belt passes through the leveling machine, the upper surface and the lower surface of the steel belt after finishing are clean and free of oil marks, and lining paper operation can be carried out, so that after the steel belt is leveled by the leveling machine, a roller cleaner device is required to carry out cleaning operation on the surface of the steel belt, the roller cleaner is controlled by a swing arm device, the swing arm device is retracted when the steel belt is not put into operation, and the swing arm device extends out when the steel belt is put into operation, so that the roller cleaner device contacts an object to be cleaned and keeps close, but the close force cannot be too large, only slight compression is required, the optimal requirement is 0.1 KN+/-2%, and a certain close force is maintained, so that the steel belt can be effectively wiped, and deformation or deviation of the steel belt is not caused. The roller cleaner actively increases the leaning force when the tension of the steel belt is insufficient, so that the cleaning force is not enough due to the fact that the wiping force is too small, the leaning force can be passively reduced when the steel belt is tensioned, the damage to the surface quality of the steel belt due to the fact that the wiping force is too large is avoided, meanwhile, when the material parameters of the temper mill are changed, the wiping force can be correspondingly adjusted, namely the swing arm device of the roller cleaner must meet the requirements of corresponding microscale Cheng Baidong in quick response, and the position of the roller cleaner is moved but constant pressing force must be kept.
The existing swing arm device of the roller cleaner is driven by a hydraulic cylinder or an air cylinder, the cylinder diameter is more than or equal to 50mm when the hydraulic cylinder is adopted because of the requirement of structural rigidity, if the effect of output force F=0.1KN+/-2% is to be controlled, the working pressure of an oil way is required to be regulated to be very low, and the problems of pressure fluctuation, difficult setting and the like are easy to occur because of the limited performance of a hydraulic element, so that constant wiping force cannot be provided, and the problems of steel belt damage or unclean wiping and the like occur. If the oil cylinder of the oil removing roller is changed to be small, the structural strength and the rigidity can be influenced, the control precision of the oil cylinder is difficult to ensure by adopting a pneumatic device, and the cost of adopting a high-end or customized hydraulic valve is too high.
Disclosure of Invention
For the above reasons, the invention is necessary to provide a hydraulic valve set design for micro-contact control of a leveling machine roller cleaner, which reduces the technical requirements on hydraulic valve members and reduces the manufacturing cost.
The technical scheme provided by the invention is that the hydraulic valve set design for micro-contact control of a leveling machine roller cleaner comprises the following components:
The hydraulic oil way comprises an oil supply pipeline and an oil return pipeline;
the hydraulic oil cylinder is provided with a rod cavity and a rodless cavity, the rod cavity is communicated with a first extending pipeline, and the rodless cavity is communicated with a second extending pipeline;
The servo valve is respectively communicated with the tail ends of the first pipeline and the second pipeline, and is communicated with the oil supply pipeline and the oil return pipeline;
the back pressure valve is communicated with the middle part of the second pipeline through a third pipeline and is communicated with the oil supply pipeline and the oil return pipeline;
a pressure sensor for measuring hydraulic pressure of the rod-containing chamber and the rodless chamber;
The back pressure valve is set to be a constant pressure value, when the hydraulic pressure valve works, the servo valve is electrified to increase the hydraulic output of the rodless cavity, so that the pressure value in the rodless cavity is larger than the pressure set by the back pressure valve, and the hydraulic rod is pushed to extend, and when the hydraulic pressure valve is stopped, the servo valve is not electrified, the rodless cavity is communicated with the oil return pipeline, and the hydraulic pressure is output to the rod cavity, so that the hydraulic rod is pushed to shrink.
Further, the back pressure valve is set as an inserted pressure reducing and relieving valve.
Further, the servo valve is set as an electrohydraulic servo valve.
Further, the hydraulic servo valve further comprises a plug-in type electromagnetic ball valve, wherein the plug-in type electromagnetic ball valve is respectively arranged at the middle part of the third pipeline and the middle part of the section of the second pipeline from the connection part of the second pipeline and the third pipeline to the servo valve.
Further, the hydraulic oil cylinder further comprises an SAE flange high-pressure ball valve, wherein the section of the first pipeline, which is close to the hydraulic oil cylinder, and the middle part of the section of the second pipeline, which is positioned between the joint of the second pipeline and the third pipeline and the hydraulic oil cylinder, are respectively provided with the SAE flange high-pressure ball valve.
Further, the hydraulic oil cylinders are provided with two groups, and the two groups of hydraulic oil cylinders are connected with the hydraulic oil circuit in parallel by adopting the same structure.
Further, the front section of the oil supply pipeline is sequentially provided with a high-pressure filter, a plate-type pressure reducing valve, a plug-in type one-way valve and a supercharger from front to back, the device further comprises an energy accumulator, the energy accumulator is connected to the oil supply pipeline at the rear end of the supercharger through an output pipeline, and the output pipeline of the energy accumulator, which is connected with the oil supply pipeline, is provided with a plate-type high-pressure ball valve.
Further, the high-pressure filter comprises two oil supply pipelines which are connected in series.
Further, an SAE flange high-pressure ball valve is arranged at each of the oil inlet end of the oil supply pipeline and the oil outlet end of the oil return pipeline.
The beneficial effects of the invention are as follows:
Compared with the prior art, the invention compensates the wiping force through the back pressure valve, so that the adjusting pressure can be adjusted only by overcoming the back pressure, and the adjusting pressure can be increased to be set by adopting the common hydraulic valve. Therefore, the invention reduces the technical requirement on the hydraulic valve parts, so that all the hydraulic valve parts adopt standard products, and the manufacturing cost is reduced.
The preferred embodiments of the present invention and their advantageous effects will be described in further detail with reference to specific embodiments.
Drawings
FIG. 1 is a block diagram of a hydraulic valve block design for micro-contact control of a temper mill roller cleaner in accordance with the present invention.
Reference numerals and part names in the drawings:
10. An oil supply line; 20, an oil return pipeline, 30, a hydraulic cylinder, 11, a high-pressure filter, 12, a plate-type pressure reducing valve, 13, a plug-in type one-way valve, 14, a supercharger, 15, an energy accumulator, 16, a plate-type high-pressure ball valve, 17, a back pressure valve, 18, a plug-in type electromagnetic ball valve, 19, a servo valve, 21, an SAE flange high-pressure ball valve, 22, a pressure sensor, 23, a first pipeline, 24, a second pipeline, 25, a third pipeline, 31, a rodless cavity and 32, and a rod cavity.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments of the present application, and the embodiments of the present application and features of the embodiments of the present application may be combined with each other without conflict, and the present application will be described in detail with reference to the drawings and the embodiments.
Referring to fig. 1, the embodiment provides a hydraulic valve set design for micro-contact control of a leveling machine roller cleaner, which comprises a hydraulic oil path, a hydraulic oil cylinder 30, a pressure sensor 22, a servo valve 19, a back pressure valve 17, a pressure sensor 22 and a hydraulic pressure valve control device, wherein the hydraulic oil path comprises an oil supply pipeline 10 and an oil return pipeline 20, the hydraulic oil cylinder 30 is provided with a rod cavity 32 and a rodless cavity 31, the rod cavity 32 is communicated with a first pipeline 23 which stretches, the rodless cavity 31 is communicated with a second pipeline 24 which stretches, the servo valve 19 is respectively communicated with the tail ends of the first pipeline 23 and the second pipeline 24, the servo valve 19 is communicated with the oil supply pipeline 10 and the oil return pipeline 20, the back pressure valve 17 is communicated with the middle part of the second pipeline 24 through a third pipeline 25, the back pressure valve 17 is communicated with the oil supply pipeline 10 and the oil return pipeline 20, the pressure sensor 22 is used for measuring the hydraulic pressure of the rod cavity 32 and the rodless cavity 31, the back pressure valve 17 is set to be a constant pressure value, the servo valve 19 is respectively communicated with the tail ends of the first pipeline 23 and the second pipeline 24, the servo valve 19 is respectively communicated with the tail ends of the oil supply pipeline 10 and the oil return pipeline 20, the hydraulic pressure valve 19 is not communicated with the rod cavity 31, and the hydraulic pressure valve 19 is not communicated with the hydraulic rod cavity 31 when the hydraulic valve is stopped, and the hydraulic valve is not communicated with the rod cavity 31. The servo valve 19 is an electro-hydraulic servo valve.
The back pressure valve 17 is a plug-in pressure reducing valve. In the embodiment, the constant pressure value set by the inserted pressure reducing and releasing valve is 30bar, and the invention improves the back pressure to increase the positive pressure by 30bar, thereby reducing the technical requirement on the hydraulic valve.
The hydraulic servo valve further comprises a plug-in type electromagnetic ball valve 18, wherein the middle part of the third pipeline 25 and the middle part of the section of the second pipeline 24, which is positioned from the joint of the second pipeline 25 to the servo valve 19, are respectively provided with one plug-in type electromagnetic ball valve 18.
And the hydraulic oil cylinder 30 further comprises an SAE flange high-pressure ball valve 21, wherein one SAE flange high-pressure ball valve 21 is respectively arranged on the section of the first pipeline 23 close to the hydraulic oil cylinder 30 and the middle part of the section of the second pipeline 24 from the connection part with the third pipeline 25 to the hydraulic oil cylinder 30. Further, two groups of hydraulic cylinders 30 are provided, and the two groups of hydraulic cylinders 30 are connected in parallel with the hydraulic oil circuit by adopting the same structure.
The front section of the oil supply pipeline 10 is sequentially provided with a high-pressure filter 11, a plate-type pressure reducing valve 12, a plug-in type one-way valve 13 and a supercharger 14 from front to back, and the oil supply pipeline further comprises an energy accumulator 15, wherein the energy accumulator 15 is connected to the oil supply pipeline 10 at the rear end of the supercharger 14 through an output pipeline, and the output pipeline of the energy accumulator 15 connected with the oil supply pipeline 10 is provided with a plate-type high-pressure ball valve 16. Further, the high-pressure filter 11 includes two oil supply lines 10 connected in series.
The oil inlet end of the oil supply pipeline 10 and the oil outlet end of the oil return pipeline 20 are respectively provided with an SAE flange high-pressure ball valve 21.
In summary, the wiping force is compensated by the back pressure valve 17, so that the regulating pressure can be regulated only by overcoming the back pressure, and the regulating pressure can be increased to be set by adopting a common hydraulic valve. Therefore, the invention reduces the technical requirement on the hydraulic valve parts, so that all the hydraulic valve parts adopt standard products, and the manufacturing cost is reduced.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210815649.3A CN115163598B (en) | 2022-07-11 | 2022-07-11 | Design of a hydraulic valve group for micro-contact control of roller cleaner of flat mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210815649.3A CN115163598B (en) | 2022-07-11 | 2022-07-11 | Design of a hydraulic valve group for micro-contact control of roller cleaner of flat mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115163598A CN115163598A (en) | 2022-10-11 |
| CN115163598B true CN115163598B (en) | 2025-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210815649.3A Active CN115163598B (en) | 2022-07-11 | 2022-07-11 | Design of a hydraulic valve group for micro-contact control of roller cleaner of flat mill |
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| CN (1) | CN115163598B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218439981U (en) * | 2022-07-11 | 2023-02-03 | 湖南宏旺新材料科技有限公司 | Hydraulic valve group for micro-contact control of roller cleaning device of temper mill |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6640685B2 (en) * | 2001-02-07 | 2003-11-04 | David M. Hamby | Closed loop electrohydraulic actuator control circuit |
| CN110594210B (en) * | 2019-09-24 | 2021-08-24 | 中冶南方连铸技术工程有限责任公司 | Hydraulic control system for press roll of withdrawal and straightening machine based on position and pressure double-control mode |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218439981U (en) * | 2022-07-11 | 2023-02-03 | 湖南宏旺新材料科技有限公司 | Hydraulic valve group for micro-contact control of roller cleaning device of temper mill |
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| CN115163598A (en) | 2022-10-11 |
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