CN219452549U - Quick energy-saving hydraulic system for steel pushing device - Google Patents
Quick energy-saving hydraulic system for steel pushing device Download PDFInfo
- Publication number
- CN219452549U CN219452549U CN202320581949.XU CN202320581949U CN219452549U CN 219452549 U CN219452549 U CN 219452549U CN 202320581949 U CN202320581949 U CN 202320581949U CN 219452549 U CN219452549 U CN 219452549U
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- China
- Prior art keywords
- oil
- hydraulic cylinder
- hydraulic
- valve
- plunger pump
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 239000003921 oil Substances 0.000 claims abstract description 73
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a quick energy-saving hydraulic system for a steel pushing device, which comprises a main oil tank, a plunger pump and a hydraulic cylinder, wherein the plunger pump pumps hydraulic oil in the main oil tank into the hydraulic cylinder, a push plate for pushing steel billets to be fed is fixed at the end part of a piston rod of the hydraulic cylinder, a reversing valve is arranged on a pipeline of the plunger pump, which is communicated with the hydraulic cylinder, an oil outlet end of the reversing valve is connected with a rodless cavity of the hydraulic cylinder through a first oil pipe, the rod cavity of the hydraulic cylinder is connected with an oil inlet pipe of an oil inlet end of the reversing valve through a second oil pipe, the second oil pipe is connected with a sequence valve, and the oil outlet end of the sequence valve is communicated with oil tank oil return through the reversing valve. In the utility model, in the extension stroke of the piston rod of the hydraulic cylinder, the rodless cavity is used for supplying oil, and the return oil in the rod cavity directly flows into the rodless cavity, so that the extension speed of the piston rod of the hydraulic cylinder is faster than the conventional extension speed; when the steel billet is pushed to generate load, hydraulic oil in the rod cavity of the hydraulic cylinder returns to the oil tank through the sequence valve, so that the effect of quickly advancing the hydraulic cylinder when no load exists and improving the thrust when the load exists is achieved.
Description
Technical Field
The utility model relates to a rapid energy-saving hydraulic system for a steel pushing device.
Background
In a steel billet feeding system used in the steelmaking industry, a steel pushing device generally adopts a hydraulic cylinder to push steel billets to be fed, and in the steel pushing process, the whole feeding rhythm is easy to be slower due to the influence of the steel pushing speed.
In general, when the steel pushing device does not contact with the billet for pushing, the hydraulic cylinder needs to advance rapidly, and when pushing the billet, the pushing force of the hydraulic cylinder needs to be increased and the speed is controlled, so that the steel pushing device cannot be damaged due to the too high speed, and the pushing speed and the pushing force of the hydraulic cylinder need to be considered in the steel pushing process.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to overcome the defects in the prior art, the utility model provides a rapid energy-saving hydraulic system for a steel pushing device, so as to reasonably consider the speed and the thrust of a hydraulic cylinder in the steel pushing process.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a quick energy-conserving hydraulic system for pushing away steel device, includes main oil tank, plunger pump and pneumatic cylinder, and the pneumatic pump in the main oil tank is pumped into the pneumatic cylinder to the hydraulic pump, the fixed push pedal that promotes the steel billet material loading of piston rod tip of pneumatic cylinder, the pipeline that the plunger pump led to the pneumatic cylinder on be equipped with the switching-over valve, switching-over valve oil outlet end is connected the pneumatic cylinder through first oil pipe does not have the pole chamber, the pneumatic cylinder has the pole chamber to be connected through the oil feed pipe of second oil pipe with switching-over valve oil feed end, second oil pipe be connected with the sequence valve, the communication oil tank returns behind the switching-over valve oil outlet end.
Further, an energy accumulator is connected to an oil inlet pipe of the plunger pump leading to the reversing valve, the energy accumulator is connected with a high-pressure filter through an overflow valve, and when the oil pressure in the energy accumulator reaches 120kg, hydraulic oil in the energy accumulator is filtered by the high-pressure filter from the overflow valve and returns to the oil tank.
The beneficial effects of the utility model are as follows: in the extending stroke of the piston rod of the hydraulic cylinder, the rodless cavity supplies oil, and meanwhile, the rod cavity and the rodless cavity of the hydraulic cylinder are communicated with each other through the second oil pipe, so that oil return of the rod cavity directly flows into the rodless cavity, and the extending speed of the piston rod of the hydraulic cylinder is faster than the conventional extending speed; when the steel billet is pushed to generate load, hydraulic oil in the rod cavity of the hydraulic cylinder returns to the oil tank through the sequence valve, so that the effect of quickly advancing the hydraulic cylinder when no load exists and improving the thrust when the load exists is achieved.
Drawings
The utility model will be further described with reference to the drawings and embodiments.
Fig. 1 is a schematic structural view of the present utility model.
In the figure: 1. the hydraulic oil pump comprises a main oil tank, a plunger pump, a hydraulic cylinder, a steel billet, a push plate, a reversing valve, a first oil pipe, a second oil pipe, an oil inlet pipe, a sequence valve, an accumulator, an overflow valve, a high-pressure filter and a high-pressure filter.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
The quick energy-saving hydraulic system for the steel pushing device comprises a main oil tank 1, a plunger pump 2 and a hydraulic cylinder 3, wherein a push plate 5 for pushing a steel billet 4 to be fed is fixed at the end part of a piston rod of the hydraulic cylinder 3, a reversing valve 6 is arranged between the plunger pump 2 and the hydraulic cylinder 3, the plunger pump 2 is connected with the reversing valve 6 through an oil inlet pipe 9, an oil outlet end of the reversing valve 6 is connected with a rodless cavity of the hydraulic cylinder 3 through a first oil pipe 7, and a rod cavity of the hydraulic cylinder 3 is connected with an oil inlet pipe 9 of the oil inlet end of the reversing valve 6 through a second oil pipe 8.
A sequence valve 10 is arranged between the second oil pipe 8 and the reversing valve 6, the second oil pipe 8 is communicated with the oil inlet end of the sequence valve 10, and the oil outlet end of the sequence valve 10 is connected with the reversing valve 6 and then is communicated with the oil tank for returning oil.
An accumulator 11 is connected to the oil inlet pipe 9 of the plunger pump 2 leading to the reversing valve 6, and the accumulator 11 is connected to a high-pressure filter 13 through a relief valve 12, and the relief pressure of the relief valve 12 is set to 120Kg.
The plunger pump 2 pumps hydraulic oil in the main oil tank 1, one path of the hydraulic oil enters the reversing valve 6 and the other path enters the accumulator 11 through the oil inlet pipe 9, the hydraulic cylinder 3 is not started when the reversing valve 6 is in the middle position, and the hydraulic oil enters the accumulator 11 for storage at the moment.
When the reversing valve 6 is in the left position, the rodless cavity of the hydraulic cylinder 3 is filled with oil to push the piston of the hydraulic cylinder 3 to move, and during the period, the hydraulic oil with the rod cavity of the hydraulic cylinder 3 returns to the rodless cavity through the second oil pipe 8, so that the piston rod of the hydraulic cylinder 3 is driven to extend by utilizing the pressure difference generated by the area difference between the rodless cavity and the rod cavity of the hydraulic cylinder 3 under the same pressure. Because the hydraulic oil with the rod cavity of the hydraulic cylinder 3 flows back into the rodless cavity, the hydraulic cylinder 3 can move at a high speed with a high flow rate, but the hydraulic oil with the rod cavity can generate back pressure when returning into the rodless cavity, so that the hydraulic cylinder 3 moves at a high speed and the pressure can be reduced.
When the push plate 5 at the end of the piston rod of the hydraulic cylinder 3 contacts the steel billet 4 to generate load and the pressure of hydraulic oil entering the rodless cavity reaches 50kg, the sequence valve 10 is opened, and the hydraulic oil directly returns to the oil tank through the sequence valve 10. Therefore, when the pushing plate 5 does not contact the steel billet 4, the hydraulic cylinder 3 can rapidly advance, and when the pushing plate 5 contacts the steel billet 4 and needs pushing force, hydraulic oil flows back to the oil tank from the sequence valve 10 to increase the pushing force of the hydraulic cylinder 3.
Due to the arrangement of the energy accumulator 11, the plunger pump 2 pumps hydraulic oil into the energy accumulator 11 at the same time, after the energy accumulator 11 is full of energy, the plunger pump 2 stops, the energy accumulator 11 supplies oil to the hydraulic cylinder 3, and the hydraulic cylinder 3 is pushed to move for a plurality of times.
If the oil pressure in the accumulator 11 reaches 120kg, the hydraulic oil in the accumulator 11 flows back to the oil tank after being filtered by the high-pressure filter 13 from the overflow valve 12; when the oil pressure in the accumulator 11 is lower than 70kg, the plunger pump 2 is started and hydraulic oil is simultaneously pumped into the hydraulic cylinder 3 and the accumulator 11.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (2)
1. The utility model provides a quick energy-conserving hydraulic system for pushing away steel device, includes main oil tank (1), plunger pump (2) and pneumatic cylinder (3), and hydraulic oil pump in plunger pump (2) extraction main oil tank (1) pumps pneumatic cylinder (3), and the fixed push pedal (5) that promotes steel billet (4) material loading of piston rod tip of pneumatic cylinder (3), characterized by: the plunger pump (2) lead to be equipped with switching-over valve (6) on the pipeline of pneumatic cylinder (3), switching-over valve (6) play oil end is connected pneumatic cylinder (3) rodless chamber through first oil pipe (7), pneumatic cylinder (3) have the pole chamber to be connected with advance oil pipe (9) of switching-over valve (6) oil inlet end through second oil pipe (8), second oil pipe (8) be connected with sequence valve (10), the oil return of intercommunication oil tank behind sequence valve (10) play oil end through switching-over valve (6).
2. A rapid energy efficient hydraulic system for a steel pushing apparatus according to claim 1, characterized in that: the hydraulic oil pump is characterized in that an energy accumulator (11) is connected to an oil inlet pipe (9) of the plunger pump (2) leading to the reversing valve (6), the energy accumulator (11) is connected with a high-pressure filter (13) through an overflow valve (12), and when the oil pressure in the energy accumulator (11) reaches 120kg, hydraulic oil in the energy accumulator (11) is filtered by the high-pressure filter (13) from the overflow valve (12) and returns to an oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581949.XU CN219452549U (en) | 2023-03-22 | 2023-03-22 | Quick energy-saving hydraulic system for steel pushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581949.XU CN219452549U (en) | 2023-03-22 | 2023-03-22 | Quick energy-saving hydraulic system for steel pushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219452549U true CN219452549U (en) | 2023-08-01 |
Family
ID=87420641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320581949.XU Active CN219452549U (en) | 2023-03-22 | 2023-03-22 | Quick energy-saving hydraulic system for steel pushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219452549U (en) |
-
2023
- 2023-03-22 CN CN202320581949.XU patent/CN219452549U/en active Active
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