Novel pressurizing oil station capable of switching number of pressurizing rollers

Abstract

The utility model relates to the technical field of hydraulic systems, and discloses a novel pressurizing oil station capable of switching the number of pressurizing rollers, which comprises a hydraulic oil tank, a motor is fixedly connected to the top end of the hydraulic oil tank, an oil pump is fixedly connected to the driving end of the motor, one end of the oil pump is connected with an oil suction filter, and the other end of the oil pump is connected with an overflow valve. One end of the overflow valve is connected with a multi-way reversing valve set, the oil return end of the multi-way reversing valve set is connected with a filter pipe, the inner wall of the filter pipe is slidably connected with a sealing block, the top end of the sealing block is fixedly connected with an oil return filter cover, and the outer wall of the oil return filter cover is connected with an annular rod through a sliding assembly. According to the utility model, the multi-way reversing valve group is connected in parallel, so that one hydraulic system controls a plurality of hydraulic cylinders, and the flow direction of hydraulic oil is flexibly switched to adapt to different working conditions; the oil return filter cover can be rapidly detached to replace the filter element by pulling the limiting rod outwards and rotating the annular rod, maintenance is simplified, cost is reduced, the service life is prolonged, and an efficient and reliable hydraulic scheme is provided.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic system technology, and in particular to a novel pressurizing oil station with switchable number of pressurizing rollers. Background Technology

[0002] In modern industrial production, hydraulic systems are widely used in various mechanical equipment due to their high efficiency, stability, and precise control performance. Especially in scenarios requiring multi-point pressurization or pressure regulation, hydraulic systems can achieve precise pressurization of different workpieces or processes through hydraulic cylinders. However, in actual production processes, due to the diversity of process requirements, equipment often needs to flexibly adjust the number of pressurization points to adapt to different working conditions. Therefore, how to design a hydraulic system that can flexibly switch the number of pressurization rollers has become a key focus of the industry.

[0003] Currently, traditional hydraulic systems typically employ a single hydraulic cylinder control method or multiple independent hydraulic systems to control different pressure rollers. While this design can meet certain needs in specific scenarios, it presents several problems: First, multiple independent hydraulic systems increase equipment size, cost, and maintenance complexity. Second, the single hydraulic cylinder control method cannot flexibly adjust the number of pressure rollers; when operating conditions change, equipment utilization significantly decreases, sometimes requiring complete shutdown and equipment replacement, severely impacting production efficiency. Furthermore, regarding hydraulic system maintenance, the traditional return oil filter replacement process is complex, typically requiring significant time for disassembly and reassembly, leading to increased downtime and higher maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel pressurizing oil station with switchable pressurizing rollers. Through parallel multi-way directional valve groups, a single hydraulic system can control multiple hydraulic cylinders, flexibly switching the hydraulic oil flow direction to adapt to different working conditions. Pulling outwards to the limit rod and rotating the ring rod allows for quick removal of the return oil filter cover for filter element replacement, simplifying maintenance, reducing costs, extending service life, and providing an efficient and reliable hydraulic solution.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel pressurizing oil station with switchable pressurizing roller quantity, comprising a hydraulic oil tank, a motor fixedly connected to the top of the hydraulic oil tank, an oil pump fixedly connected to the drive end of the motor, an oil suction filter connected to one end of the oil pump, an overflow valve connected to the other end of the oil pump, a multi-way reversing valve assembly connected to one end of the overflow valve, a filter pipe connected to the return oil end of the multi-way reversing valve assembly, a sealing block slidably connected to the inner wall of the filter pipe, a return oil filter cover fixedly connected to the top of the sealing block, an annular rod connected to the outer wall of the return oil filter cover via a sliding assembly, a limit rod slidably connected to one end of the annular rod, a spring sleeved on the outer wall of the limit rod, a movable plate fixedly connected to the outer wall of the limit rod, and a filter element disposed inside the filter pipe.

[0006] Furthermore, the multi-way directional valve group includes a first multi-way directional valve, a second multi-way directional valve, a third multi-way directional valve, and a fourth multi-way directional valve, with a solenoid directional valve connected to one end of the first multi-way directional valve, one end of the second multi-way directional valve, one end of the third multi-way directional valve, and one end of the fourth multi-way directional valve.

[0007] Furthermore, the sliding assembly includes a sliding rod slidably connected to the inner wall of the oil return filter cover, a connecting rod rotatably connected to one end of the sliding rod, a fixing block fixedly connected to the outer wall of the oil return filter cover, an annular rod rotatably connected to the inner wall of the fixing block, and a connecting rod rotatably connected to the inner side of one end of the annular rod.

[0008] Furthermore, the filter tube and the sliding rod are slidably connected.

[0009] Furthermore, one end of the spring is connected to one side of the movable plate, and the other end of the spring is connected to the inner wall of the annular rod.

[0010] Furthermore, the limiting rod and the return oil filter cover are slidably connected, and the moving plate and the annular rod are slidably connected.

[0011] Furthermore, the filter tube is fixedly connected to the top of the oil tank and extends into the interior of the hydraulic oil tank, the multi-way directional valve assembly is fixedly connected to the top of the hydraulic oil tank, and the overflow valve is fixedly connected to the top of the hydraulic oil tank.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model utilizes a parallel multi-way directional valve assembly design to achieve the function of controlling multiple hydraulic cylinders with a single hydraulic system. When it is necessary to increase or decrease the number of pressure rollers, the flow direction of hydraulic oil can be flexibly switched through the cooperation of the solenoid directional valve and the multi-way directional valve assembly to drive different numbers of hydraulic cylinders. This design not only improves the flexibility of the system but also adapts to different working conditions, avoids equipment idleness, and significantly improves production efficiency.

[0014] 2. In this utility model, the return oil filter cover can be quickly removed by pulling the limiting rod outward and rotating the ring rod, facilitating the replacement of the return oil filter element. This design simplifies maintenance operations, reduces downtime, lowers maintenance costs, and extends the service life of the equipment, providing users with a more efficient and reliable hydraulic system solution. Attached Figure Description

[0015] Figure 1 This is a perspective view of a novel pressurizing oil station with an adjustable number of pressurizing rollers, as proposed in this utility model.

[0016] Figure 2 A cross-sectional view of the hydraulic oil tank of a novel pressurizing oil station with an adjustable number of pressurizing rollers proposed in this utility model;

[0017] Figure 3 A cross-sectional view of the return oil filter cover of a novel pressurized oil station with an adjustable number of pressurized rollers, as proposed in this utility model;

[0018] Figure 4 This utility model presents a structural diagram of the return oil filter cover for a novel pressurized oil station with an adjustable number of pressurized rollers.

[0019] Figure 5 This is a cross-sectional view of the annular rod of a novel pressurizing oil station with an adjustable number of pressurizing rollers proposed in this utility model.

[0020] Legend:

[0021] 1. Hydraulic oil tank; 2. Motor; 3. Oil pump; 4. Filter pipe; 5. Relief valve; 6. First multi-way directional valve; 7. Solenoid directional valve; 8. Second multi-way directional valve; 9. Third multi-way directional valve; 10. Fourth multi-way directional valve; 11. Return oil filter cover; 12. Suction oil filter; 13. Ring rod; 14. Limit rod; 15. Spring; 16. Moving plate; 17. Fixing block; 18. Connecting rod; 19. Sliding rod; 20. Sealing block; 21. Filter element. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 and Figure 2This utility model provides an embodiment of a novel pressurizing oil station with switchable pressurizing roller quantity, comprising a hydraulic oil tank 1, a motor 2 fixedly connected to the top of the hydraulic oil tank 1, an oil pump 3 fixedly connected to the drive end of the motor 2, an oil suction filter 12 connected to one end of the oil pump 3, and an overflow valve 5 connected to the other end of the oil pump 3. A multi-way directional valve group is connected to one end of the overflow valve 5, and the multi-way directional valve group is fixedly connected to the top of the hydraulic oil tank 1. The multi-way directional valve group includes a first multi-way directional valve 6, a second multi-way directional valve 8, a third multi-way directional valve 9, and a fourth multi-way directional valve 10. A solenoid directional valve 7 is connected to one end of the first multi-way directional valve 6, one end of the second multi-way directional valve 8, one end of the third multi-way directional valve 9, and one end of the fourth multi-way directional valve 10. A filter pipe 4 is connected to the return oil end of the multi-way directional valve group, and the filter pipe 4 is fixedly connected to the top of the oil tank and extends into the interior of the hydraulic oil tank 1.

[0024] Specifically, during system operation, motor 2 drives oil pump 3 to draw hydraulic oil from hydraulic oil tank 1. The drawn hydraulic oil first passes through relief valve 5, then enters the first multi-way directional valve 6, and is then delivered to the hydraulic cylinder via solenoid directional valve 7, thereby driving the pressure rollers. When it is necessary to increase the number of pressure rollers, the operator opens the valve connecting the first multi-way directional valve 6 to the second multi-way directional valve 8. At this time, hydraulic oil flows from the first multi-way directional valve 6 to both the second multi-way directional valve 8 and the solenoid directional valve 7 connected to the first multi-way directional valve 6, thereby driving another hydraulic cylinder and increasing the number of pressure rollers. Similarly, the third multi-way directional valve 9 and the fourth multi-way directional valve 10 each correspond to a hydraulic cylinder. Through this setup, one hydraulic system can control multiple hydraulic cylinders, achieving flexible switching of the number of pressure rollers. The hydraulic oil returning from the hydraulic cylinder will flow to the corresponding multi-way directional valve through the solenoid directional valve 7 connected to each hydraulic cylinder, and then converge to the first multi-way directional valve 6, and then flow back to the hydraulic oil tank 1 through the return oil filter.

[0025] Reference Figures 3-5A sealing block 20 is slidably connected to the inner wall of the filter tube 4. A return oil filter cover 11 is fixedly connected to the top of the sealing block 20. A sliding rod 19 is slidably connected to the inner wall of the return oil filter cover 11. A connecting rod 18 is rotatably connected to one end of the sliding rod 19. A fixing block 17 is fixedly connected to the outer wall of the return oil filter cover 11. An annular rod 13 is rotatably connected to the inner wall of the fixing block 17. The connecting rod 18 is rotatably connected to the inner side of one end of the annular rod 13. A limiting rod 14 is slidably connected to one end of the annular rod 13. A spring 15 is sleeved on the outer wall of the limiting rod 14. A moving plate 16 is fixedly connected to the outer wall of the limiting rod 14. One end of the spring 15 is connected to one side of the moving plate 16, and the other end of the spring 15 is connected to the inner wall of the annular rod 13. A filter element 21 is provided inside the filter tube 4. The filter tube 4 is slidably connected to the sliding rod 19, the limiting rod 14 is slidably connected to the return oil filter cover 11, and the moving plate 16 is slidably connected to the annular rod 13.

[0026] Specifically, regarding the maintenance of the return oil filter, when the return oil filter element 21 needs to be replaced, the operator pulls the limiting rod 14 outward, causing it to slide off the return oil filter cover 11. Then, the annular rod 13 is rotated around the fixed block 17, causing the connecting rod 18 to move outward, which in turn causes the sliding rod 19 to slide closer to the fixed block 17. Since the thicker part of the sliding rod 19 can engage with the groove at the top of the filter tube 4, while the thinner parts at both ends cannot, when the thinner parts of the sliding rod 19 slide above the groove at the top of the filter tube 4, the return oil filter cover 11 can be pulled out directly, facilitating the replacement of the return oil filter element 21. This design simplifies maintenance operations, reduces downtime, lowers maintenance costs, and extends the service life of the equipment, providing users with a more efficient and reliable hydraulic system solution.

[0027] Working Principle: Motor 2 drives oil pump 3 to draw hydraulic oil from hydraulic oil tank 1. The hydraulic oil passes through relief valve 5 into the first multi-way directional valve 6, and then through solenoid directional valve 7 into the hydraulic cylinder, thereby driving the pressure roller. When it is necessary to increase the number of pressure rollers, the system can open the valve connecting the first multi-way directional valve 6 to the second multi-way directional valve 8, so that hydraulic oil flows simultaneously to the second multi-way directional valve 8 and the solenoid directional valve 7 connected to the first multi-way directional valve 6, thereby driving another hydraulic cylinder and adding a pressure roller. Similarly, the third multi-way directional valve 9 and the fourth multi-way directional valve 10 also correspond to a hydraulic cylinder. This design allows a hydraulic system to flexibly control multiple hydraulic cylinders, thereby realizing the switching of the number of pressure rollers. After the hydraulic cylinder completes the pressurization task, the returning hydraulic oil passes through the solenoid directional valve 7 connected to each hydraulic cylinder, flows to the corresponding multi-way directional valve, and finally converges into the first multi-way directional valve 6. Subsequently, the hydraulic oil flows back to hydraulic oil tank 1 through the return oil filter.

[0028] By pulling the limiting rod outward, it slides away from the return oil filter cover. Then, the ring rod is rotated around the fixed block, causing the connecting rod to move outward. The movement of the connecting rod further causes the sliding rod to slide closer to the fixed block. Since the thicker part of the sliding rod can engage with the groove at the top of the filter tube, while the thinner parts at both ends of the sliding rod cannot, when the thinner parts of the sliding rod slide above the groove at the top of the filter tube, the return oil filter cover can be pulled out upward, making it easy to replace the filter element.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel pressurizing oil station with switchable number of pressurizing rollers, comprising a hydraulic oil tank (1), characterized in that: The top of the hydraulic tank (1) is fixedly connected to a motor (2), the drive end of the motor (2) is fixedly connected to an oil pump (3), one end of the oil pump (3) is connected to an oil suction filter (12), the other end of the oil pump (3) is connected to an overflow valve (5), one end of the overflow valve (5) is connected to a multi-way reversing valve group, the return end of the multi-way reversing valve group is connected to a filter pipe (4), the inner wall of the filter pipe (4) is slidably connected to a sealing block (20), the top of the sealing block (20) is fixedly connected to a return oil filter cover (11), the outer wall of the return oil filter cover (11) is connected to an annular rod (13) through a sliding component, one end of the annular rod (13) is slidably connected to a limit rod (14), the outer wall of the limit rod (14) is sleeved with a spring (15), the outer wall of the limit rod (14) is fixedly connected to a moving plate (16), and a filter element (21) is provided inside the filter pipe (4).

2. The novel pressurizing oil station with switchable number of pressurizing rollers according to claim 1, characterized in that: The multi-way directional valve group includes a first multi-way directional valve (6), a second multi-way directional valve (8), a third multi-way directional valve (9), and a fourth multi-way directional valve (10). A solenoid directional valve (7) is connected to one end of the first multi-way directional valve (6), one end of the second multi-way directional valve (8), one end of the third multi-way directional valve (9), and one end of the fourth multi-way directional valve (10).

3. A novel pressurizing oil station with switchable number of pressurizing rollers according to claim 1, characterized in that: The sliding assembly includes a sliding rod (19) slidably connected to the inner wall of the return oil filter cover (11), a connecting rod (18) rotatably connected to one end of the sliding rod (19), a fixing block (17) fixedly connected to the outer wall of the return oil filter cover (11), an annular rod (13) rotatably connected to the inner wall of the fixing block (17), and the connecting rod (18) rotatably connected to the inner side of one end of the annular rod (13).

4. A novel pressurizing oil station with switchable number of pressurizing rollers according to claim 1, characterized in that: The filter tube (4) and the sliding rod (19) are slidably connected.

5. A novel pressurizing oil station with switchable number of pressurizing rollers according to claim 1, characterized in that: One end of the spring (15) is connected to one side of the movable plate (16), and the other end of the spring (15) is connected to the inner wall of the ring rod (13).

6. A novel pressurizing oil station with switchable number of pressurizing rollers according to claim 1, characterized in that: The limiting rod (14) and the return oil filter cover (11) are slidably connected, and the moving plate (16) and the ring rod (13) are slidably connected.

7. A novel pressurizing oil station with switchable number of pressurizing rollers according to claim 1, characterized in that: The filter tube (4) is fixedly connected to the top of the oil tank and extends into the hydraulic oil tank (1). The multi-way directional valve group is fixedly connected to the top of the hydraulic oil tank (1). The overflow valve (5) is fixedly connected to the top of the hydraulic oil tank (1).

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