Pressurizing oil way structure for oil return flow detection
By designing the oil return flow detection pressurized oil circuit structure, the secondary oil circuit and the oil return pipeline are used to introduce oil into the heating head for cooling when the rolling mill is stopped, the problem of damage to the heating head due to the inability to cool down is solved, the service life is improved, and the normal oil supply during the rolling mill is ensured.
Patent Information
- Application Number
- CN202420924885.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the prior art, after the rolling mill stops working, the main oil circuit stops supplying oil, resulting in the heating head being unable to cool down, which is prone to damage and reduces service life.
A pressurized oil circuit structure for oil return flow detection is designed, including the main oil circuit, the secondary oil circuit and the return oil pipeline. Through the cooperation of the pipeline booster pump and the pneumatic valve, it ensures that when the rolling mill is stopped, the oil can enter the heating head through the secondary oil circuit for cooling.
Effectively prevent the heating head from being damaged by long-term high temperatures, improve its service life, and ensure normal oil supply to the heating head and the rolling mill injection port when the rolling mill is working.
Smart Images
Figure CN222679111U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a return oil flow detection pressurized oil circuit structure. Background Art
[0002] In the process of rolling aluminum plates by a rolling mill, in order to prevent problems such as tight edges and broken strips on both sides of the rolled aluminum plates, a heating head is usually set at the edge of the aluminum plate corresponding to the pressure roller of the rolling mill, and the heating head is used to heat the position of the pressure roller corresponding to the edge of the aluminum plate, so that the pressure roller expands due to heat, so that the deformation of the produced aluminum plate is small, and the aluminum plate is prevented from having undesirable problems such as tight edges and broken strips during the rolling process. In the prior art, on the one hand, it is necessary to supply oil to the injection port of the rolling mill, and the oil is sprayed to the pressure roller and the aluminum plate, so as to ensure the lubrication of the pressure roller of the rolling mill when pressing the aluminum plate, and on the other hand, it is necessary to pass oil into the heating head to cool the heating head. However, the existing oil circuit generally supplies oil to the injection port and the heating head of the rolling mill through a main oil circuit at the same time. However, when the rolling work of the rolling mill needs to be completed, after the main oil circuit stops supplying oil, the injection port and the heating head of the rolling mill will also stop supplying oil at the same time. At this time, the temperature of the heating head is still relatively high and cannot be cooled. In the long run, the heating head is easily damaged, which reduces the service life of the heating head. Utility Model Content
[0003] The utility model improves the above-mentioned problem, that is, the technical problem to be solved by the utility model is to provide a return oil flow detection pressurized oil circuit structure, which can ensure that the oil enters the heating head for cooling when the rolling mill is stopped, thereby effectively improving the service life of the heating head.
[0004] The utility model is constructed as follows: it includes a main oil circuit and an oil tank, an oil supply pump, a plate cooler, a Boll filter and a pneumatic butterfly valve which are sequentially arranged along the oil inlet direction of the main oil circuit; the pneumatic butterfly valve is connected to the oil injection port of the rolling mill via a first branch; the pneumatic butterfly valve is connected to the heating head of the rolling mill via a second branch; a secondary oil circuit is arranged between the main oil circuit between the plate cooler and the Boll filter and the heating head; a pipeline booster pump is arranged on the secondary oil circuit.
[0005] Furthermore, an oil return pipeline is provided on the main oil circuit between the Boll filter and the plate cooler, and the other end of the oil return pipeline is connected to the oil tank.
[0006] Furthermore, the output end of the heating head is provided with an oil outlet pipeline, a flow meter, a pneumatic angle seat valve and an oil collecting basin, the output end of the oil outlet pipeline is divided into a first oil outlet pipeline and a second oil outlet pipeline, the output ends of the first oil outlet pipeline and the second oil outlet pipeline are connected to the collecting basin, the flow meter is arranged on the first oil outlet pipeline, and the pneumatic angle seat valve is arranged on the second oil outlet pipeline.
[0007] Furthermore, the input end of the secondary oil circuit extends into the main oil circuit, the end of the secondary oil circuit extending into the main oil circuit is L-shaped, and the input end of the secondary oil circuit is provided with an oil inlet funnel.
[0008] Furthermore, a motor is arranged outside the oil supply pump.
[0009] Compared with the prior art, the utility model has the following beneficial effects: the device has a simple structure and a reasonable design. When the rolling mill stops rolling, the pneumatic butterfly valve on the main oil circuit is closed, and the oil cannot enter the nozzle and cooling head of the rolling mill through the main oil circuit. The pneumatic ball valve on the return oil pipeline is opened, and a part of the oil returns to the oil tank through the return oil pipeline, and the other part of the oil directly enters the heating head through the secondary oil circuit for cooling under the action of the pipeline booster pump. At this time, the pneumatic angle seat valve of the second oil outlet pipeline is opened, and most of the oil flows smoothly into the oil collecting box through the second oil outlet pipeline, thereby ensuring that the main oil circuit of the rolling mill is closed. In this case, the heating head can also be cooled by the oil, thereby increasing the service life of the heating head; when the rolling mill is in rolling operation, the pneumatic ball valve on the return oil pipeline is closed, and the oil is divided into two paths through the Boll filter and the pneumatic ball valve of the main oil circuit in turn. One path is sprayed through the nozzle of the rolling mill to lubricate the pressure rollers and aluminum plates, and the other path enters the heating head and cools the heating head. At this time, the pneumatic angle seat valve of the second oil outlet pipeline is closed, and the oil enters the oil collecting basin through the first oil outlet pipeline. Of course, when the rolling mill is working, the secondary oil pipeline can be open or closed. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;
[0011] Figure 2 It is a schematic diagram of the connection structure between the input end of the secondary oil pipeline and the main oil circuit in an embodiment of the utility model. DETAILED DESCRIPTION
[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0013] Example: Figure 1~2 As shown, in this embodiment, a return oil flow detection pressurized oil circuit structure is provided, including a main oil circuit 1 and an oil tank 2, an oil supply pump 3, a plate cooler 4, a Boll filter 5 and a pneumatic butterfly valve 6 arranged in sequence along the oil inlet direction of the main oil circuit, the pneumatic butterfly valve is connected to the oil injection port 20 of the rolling mill via a first branch 7, the pneumatic butterfly valve is connected to the heating head 21 of the rolling mill via a second branch 8, a secondary oil circuit 9 is provided between the main oil circuit between the plate cooler and the Boll filter and the heating head, and a pipeline booster pump 10 is provided on the secondary oil circuit.
[0014] In the embodiment of the utility model, an oil return pipeline 11 is provided on the main oil circuit between the Boll filter and the plate cooler, and the other end of the oil return pipeline is connected to the oil tank.
[0015] In an embodiment of the utility model, the output end of the heating head is provided with an oil outlet pipeline 12, a flow meter 13, a pneumatic angle seat valve 14 and an oil collecting basin 15, and the output end of the oil outlet pipeline is divided into a first oil outlet pipeline 16 and a second oil outlet pipeline 17, the output ends of the first oil outlet pipeline and the second oil outlet pipeline are connected to the collecting basin, the flow meter is arranged on the first oil outlet pipeline, and the pneumatic angle seat valve is arranged on the second oil outlet pipeline.
[0016] The above-mentioned flow meter can be a one-way valve type flow meter.
[0017] In the embodiment of the utility model, the input end of the secondary oil circuit extends into the main oil circuit, and the end of the secondary oil circuit extending into the main oil circuit is L-shaped. The input end of the secondary oil circuit is provided with an oil inlet funnel 18; the oil inlet port of the oil inlet funnel serves to increase the oil inlet area.
[0018] In the embodiment of the utility model, a motor 19 is arranged outside the oil supply pump.
[0019] In the embodiment of the utility model, when working: when the rolling mill stops rolling, the pneumatic butterfly valve on the main oil circuit is closed, and the oil cannot enter the nozzle and cooling head of the rolling mill through the main oil circuit. The pneumatic ball valve on the return oil pipeline is opened, and a part of the oil returns to the oil tank through the return oil pipeline, and the other part of the oil directly enters the heating head through the secondary oil circuit under the action of the pipeline booster pump for cooling. At this time, the pneumatic angle seat valve of the second oil outlet pipeline is opened, and most of the oil flows smoothly into the oil collecting box through the second oil outlet pipeline, thereby ensuring that the heating head can also be cooled when the main oil circuit of the rolling mill is closed. To cool the oil and increase the service life of the heating head; when the rolling mill is in rolling operation, the pneumatic ball valve on the return oil pipeline is closed, and the oil is divided into two paths through the Boll filter and the pneumatic ball valve of the main oil circuit in turn. One path is sprayed through the nozzle of the rolling mill to lubricate the pressure rollers and aluminum plates, and the other path enters the heating head and cools the heating head. At this time, the pneumatic angle seat valve of the second oil outlet pipeline is closed, and the oil enters the oil collecting basin through the first oil outlet pipeline. Of course, when the rolling mill is working, the secondary oil pipeline can be open or closed.
[0020] When the rolling mill is closed, opening the pneumatic angle seat valve can allow the oil with less pressure to flow smoothly into the oil collecting basin.
[0021] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values to be exhaustive, the utility model discloses only some numerical values to illustrate the technical solution of the utility model, and the numerical values listed above should not constitute a limitation on the scope of protection of the utility model.
[0022] If the words "first", "second" and so on are used in this article to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above words have no special meaning.
[0023] At the same time, if the above-mentioned utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).
[0024] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.
[0025] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.
Claims
1. A return oil flow detection pressurized oil circuit structure, characterized in that: It includes a main oil circuit and an oil tank, an oil supply pump, a plate cooler, a Boll filter and a pneumatic butterfly valve which are arranged in sequence along the oil inlet direction of the main oil circuit. The pneumatic butterfly valve is connected to the oil injection port of the rolling mill via a first branch, and the pneumatic butterfly valve is connected to the heating head of the rolling mill via a second branch. A secondary oil circuit is provided between the main oil circuit between the plate cooler and the Boll filter and the heating head, and a pipeline booster pump is provided on the secondary oil circuit.
2. The return oil flow detection pressurized oil circuit structure according to claim 1 is characterized in that: An oil return pipeline is arranged on the main oil circuit between the Boll filter and the plate cooler, and the other end of the oil return pipeline is connected to the oil tank.
3. The return oil flow detection pressurized oil circuit structure according to claim 1 is characterized in that: The output end of the heating head is provided with an oil outlet pipeline, a flow meter, a pneumatic angle seat valve and an oil collecting basin. The output end of the oil outlet pipeline is divided into a first oil outlet pipeline and a second oil outlet pipeline. The output ends of the first oil outlet pipeline and the second oil outlet pipeline are connected to the collecting basin. The flow meter is arranged on the first oil outlet pipeline, and the pneumatic angle seat valve is arranged on the second oil outlet pipeline.
4. The return oil flow detection pressurized oil circuit structure according to claim 1, characterized in that: The input end of the secondary oil circuit extends into the main oil circuit, the end of the secondary oil circuit extending into the main oil circuit is L-shaped, and the input end of the secondary oil circuit is provided with an oil inlet funnel.
5. The return oil flow detection pressurized oil circuit structure according to claim 1 is characterized in that: A motor is arranged outside the oil supply pump.