Hydraulic system of high-speed pipe coiling machine

Abstract

The utility model discloses a hydraulic system of a high-speed pipe coiling machine, which comprises a 37kw main motor, a coupler, a plunger pump, a hydraulic electromagnetic valve, a 7KW auxiliary motor and a gear pump, the output shaft of the 37kw main motor is connected with the coupler, and the other end of the coupler is connected with the plunger pump. The output of the 7KW auxiliary motor is connected with the gear pump, a first fluid port and a second fluid port of the gear pump are connected with two ports of the hydraulic electromagnetic valve respectively, and a third fluid port and a fourth fluid port of the plunger pump are connected with the other two ports of the hydraulic electromagnetic valve respectively. A backflow port of the hydraulic electromagnetic valve is connected with an output port of the hydraulic oil tank, an output port of the hydraulic electromagnetic valve is connected with an input port of the hydraulic oil tank, and the electric control end of the hydraulic electromagnetic valve is connected with a hydraulic electromagnetic valve change-over switch used for switching a left coil and a right coil in the hydraulic electromagnetic valve to be powered on. The structure realizes an energy-saving effect.

Description

Technical Field

[0001] The utility model belongs to the relevant technical field of hydraulic systems, in particular to a high-speed coil machine hydraulic system. Background Art

[0002] The coil machine is a common mechanical equipment, mainly used for making coils. The hydraulic system is used in the coil machine to drive the internal oil tank to start the work. Because the oil tank works, it needs to be pre-prepared before production, so a high-power motor is required. Then, during the production process, only a small-power motor is generally needed. In these two time periods, the current hydraulic system directly uses a high-power motor in conjunction with a pump to perform hydraulic work in order to meet the need for a high-power motor for pre-treatment and starting in the early stage. However, during the normal working period of the oil tank, if the same high-power motor is still used, it is easy to cause high power consumption and increase energy consumption. The current high-power motor uses a 37kw motor. Based on the 21-hour operation of the equipment, the 37KW motor generates electricity consumption of 21x37x0.5x0.8=226.8 yuan, which costs more than 200 yuan a day. Then multiple coil machines will waste more electricity. Therefore, how to set different starting motors on the machine to reduce energy consumption and achieve energy saving is particularly important. Utility Model Content

[0003] The utility model aims to provide a high-speed coil machine hydraulic system, which solves the problem of waste of electric energy caused by using a 37kw motor during coil pre-start in the existing coil machine hydraulic system.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model is a high-speed coil machine hydraulic system, including a 37kw main motor, a coupling and a plunger pump, the output shaft of the 37kw main motor is connected to the coupling, and the other end of the coupling is connected to the plunger pump. It also includes a hydraulic solenoid valve, a 7kw auxiliary motor, and a gear pump. The output of the 7kw auxiliary motor is connected to the gear pump, the first fluid port and the second fluid port of the gear pump are respectively connected to the two ports of the hydraulic solenoid valve, the third fluid port and the fourth fluid port of the plunger pump are respectively connected to the other two ports of the hydraulic solenoid valve, the return port of the hydraulic solenoid valve is connected to the output port of the hydraulic oil tank, the output port of the hydraulic solenoid valve is connected to the input port of the hydraulic oil tank, and the electrical control end of the hydraulic solenoid valve is connected to a hydraulic solenoid valve switching switch for switching the power supply to the left and right coils in the hydraulic solenoid valve.

[0006] Preferably, in order to achieve an overflow effect, an overflow valve is connected between the return port of the hydraulic solenoid valve and the output port of the hydraulic oil tank.

[0007] Preferably, in order to control the fluid flow by changing the throttling section or the throttling length, a throttle valve is connected between the output port of the hydraulic solenoid valve and the input port of the hydraulic oil tank.

[0008] Preferably, in order to realize automatic flow detection, a flow detection sensor with a display screen is connected between the return port of the hydraulic solenoid valve and the output port of the hydraulic oil tank, and the flow detection sensor is used to detect the flow rate of oil in the oil circuit.

[0009] Preferably, in order to filter the passing oil and prevent the oil from containing impurities and affecting the operation of the equipment, a filter is connected between the return port of the hydraulic solenoid valve and the output port of the hydraulic oil tank.

[0010] Preferably, in order to achieve sewage discharge effect, a sewage outlet for sewage discharge is provided at the bottom of the filter.

[0011] Preferably, solar power supply is realized, and a connecting bracket is provided on the side of the 37kw main motor, and a solar panel and an energy storage device are provided on the connecting bracket. The solar panel is electrically connected to the energy storage device, and the energy storage device is electrically connected to the hydraulic solenoid valve.

[0012] Preferably, in order to realize automatic detection of oil pressure, a pressure detection sensor for detecting the fluid pressure is provided at the pump head of the plunger pump.

[0013] The utility model has the following beneficial effects:

[0014] 1. This structure adds an auxiliary hydraulic system consisting of a 7KW auxiliary motor, a matching gear pump and a hydraulic solenoid valve. The original main hydraulic supply system is now divided into two independent hydraulic supply systems. The 37KW main motor works during the pre-preparation of the coil. This time is short, corresponding to low electricity consumption, and the normal coiling time is long. The auxiliary hydraulic system works, reducing the motor power to achieve lower energy consumption costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the connection of a hydraulic system of a high-speed coil machine in Example 1;

[0016] Figure 2 This is a schematic diagram of the connection of a hydraulic system of a high-speed coil machine in Example 2;

[0017] Figure 3 This is a schematic diagram of the connection of a hydraulic system of a high-speed coil machine in Example 3;

[0018] Figure 4This is a schematic diagram of the connection of a hydraulic system of a high-speed coil machine in Example 4;

[0019] Figure 5 This is a connection diagram of the hydraulic system of a high-speed coil machine in Example 5.

[0020] Reference numerals:

[0021] 37kw main motor 1, coupling 2, plunger pump 3, hydraulic solenoid valve 4, 7kw auxiliary motor 5, gear pump 6, hydraulic oil tank 7, hydraulic solenoid valve switch 8, overflow valve 9, throttle valve 10, filter 11, sewage outlet 12, connecting bracket 13, solar panel 14, energy storage device 15, pressure detection sensor 16, flow detection sensor 17. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] Example 1

[0025] See also Figure 1As shown, the present embodiment discloses a high-speed coil machine hydraulic system, including a 37kw main motor 1, a coupling 2 and a plunger pump 3, the output shaft of the 37kw main motor 1 is connected to the coupling 2, and the other end of the coupling 2 is connected to the plunger pump 3, and also includes a hydraulic solenoid valve 4, a 7kw auxiliary motor 5, and a gear pump 6. The output of the 7kw auxiliary motor 5 is connected to the gear pump 6, the first fluid port and the second fluid port of the gear pump 6 are respectively connected to the two ports of the hydraulic solenoid valve 4, the third fluid port and the fourth fluid port of the plunger pump 3 are respectively connected to the other two ports of the hydraulic solenoid valve 4, the return port of the hydraulic solenoid valve 4 is connected to the output port of the hydraulic oil tank 7, the output port of the hydraulic solenoid valve 4 is connected to the input port of the hydraulic oil tank 7, and the electronic control end of the hydraulic solenoid valve 4 is connected to a hydraulic solenoid valve switching switch 8 for switching the power supply of the left and right coils in the hydraulic solenoid valve 4.

[0026] Preferably, in order to achieve an overflow effect, an overflow valve 9 is connected between the return port of the hydraulic solenoid valve 4 and the output port of the hydraulic oil tank 7, and overflow control is achieved by setting the overflow valve 9.

[0027] Preferably, in order to control the fluid flow by changing the throttling section or throttling length, a throttle valve 10 is connected between the output port of the hydraulic solenoid valve 4 and the input port of the hydraulic oil tank 7. In this embodiment, the throttle valve 10 is added to change the throttling section or throttling length to control the fluid flow.

[0028] Since the existing high-speed coil machine hydraulic system has only one 37kw main motor 1 connected to the plunger pump 3 to supply oil pressure to the entire equipment (lifting platform, pipe head press machine, and pressure roller system), the power of the equipment's 37kw main motor 1 is 37KW. Based on 21 hours of operation of the equipment, the 37kw main motor 1 generates an electricity consumption of 21x37x0.5x0.8=226.8 yuan. In actual production, these three hydraulic systems can be independently supplied with oil and do not require a complete hydraulic system. Therefore, the existing production situation does not meet the requirements of the government's advocacy of energy-saving production and the company's cost-reduction concept. Therefore, the improvement of this structure is to add a 7KW auxiliary motor 5, a matching gear pump 6 and a hydraulic solenoid valve 4 to the original hydraulic station to change the pipeline to supply the roller system separately, and work by switching the hydraulic solenoid valve switching switch 8. When the hydraulic solenoid valve switching switch 8 is pressed once, the left coil of the hydraulic solenoid valve 4 is energized, and then because the right coil of the hydraulic solenoid valve 4 loses power, at this time, the 37kw main motor 1 stops working, and the 7KW auxiliary motor 5 works to synchronously supply oil to the roller system; when the hydraulic solenoid valve switching switch 8 is pressed again, the right coil of the hydraulic solenoid valve 4 is energized, and then Later, due to the power failure of the left coil of the hydraulic solenoid valve 4, the 37kw main motor 1 was running and the 7kw auxiliary motor 5 stopped working. Assuming that the average use time of a coil is about 60 minutes, and the average startup time of a coil is about 6 minutes, based on 19 coil operations per machine per day, the power consumption of the 37kw main motor 1 is 37x1.9(h)x0.5(yuan)x0.8(coefficient)=28.12 yuan, and the power consumption of the 7kw auxiliary motor 5 is 7x19(h)x0.5(yuan)x0.8(coefficient)=53.2 yuan. Therefore, the electricity bill can be saved by 226.8-28.12-53.2=145.48 yuan per day, and the eight devices can save 145.48x8=1163.84 yuan per day.

[0029] Therefore, this structure adds an auxiliary hydraulic system consisting of a 7KW auxiliary motor 5, a matching gear pump 6 and a hydraulic solenoid valve 4. The original main hydraulic supply system is now divided into two independent hydraulic supply systems, so that the 37KW main motor 1 can work during the pre-preparation work of the coil. This time is short, corresponding to low electricity consumption, and the normal coiling time is long. The auxiliary hydraulic system 5 is used to work, reducing the motor power and thus reducing energy consumption costs.

[0030] Example 2

[0031] See also Figure 2It is shown that the general structure of the hydraulic system of a high-speed coil machine disclosed in this embodiment is the same as that of Example 1, except that, as a preference, in order to realize the automatic detection of flow, a flow detection sensor 17 with a display screen is connected between the return port of the hydraulic solenoid valve 4 and the output port of the hydraulic oil tank 7. The flow detection sensor 17 is used to detect the flow rate of the oil in the oil circuit. By setting the flow detection sensor 17, the flow rate of the oil in the oil circuit can be automatically detected.

[0032] Example 3

[0033] See also Figure 3 It is shown that the general structure of the hydraulic system of a high-speed coil machine disclosed in this embodiment is the same as that of Example 1. The difference is that, as a preference, in order to filter the passing oil and prevent impurities in the oil from affecting the operation of the equipment, a filter 11 is connected between the return port of the hydraulic solenoid valve 4 and the output port of the hydraulic oil tank 7. Through the above-mentioned structural arrangement, the filter 11 can be used to filter the passing oil to prevent impurities in the oil from affecting the operation of the equipment.

[0034] Preferably, in order to achieve sewage discharge effect, a sewage outlet 12 for sewage discharge is provided at the bottom of the filter 11, and the sewage outlet 12 is provided to achieve subsequent sewage treatment.

[0035] Example 4

[0036] See also Figure 4 It is shown that the general structure of the hydraulic system of a high-speed coil machine disclosed in this embodiment is the same as that of Example 1, except that, as a preference, solar power supply is realized, and a connecting bracket 13 is provided on the side of the 37kw main motor 1, and a solar panel 14 and an energy storage device 15 are provided on the connecting bracket 13. The solar panel 14 is electrically connected to the energy storage device 15, and the energy storage device 15 is electrically connected to the hydraulic solenoid valve 4. By providing the solar panel 14, solar light can be obtained when used outdoors, and converted into electrical energy and stored in the energy storage device 15. The energy storage device 15 is used to temporarily power the equipment to avoid damage to the product being processed due to equipment stopping in an emergency power outage.

[0037] Example 5

[0038] See also Figure 5It is shown that the general structure of the hydraulic system of a high-speed coil machine disclosed in this embodiment is the same as that of Example 1. The difference is that, as a preference, in order to realize automatic detection of oil pressure, a pressure detection sensor 16 for detecting the fluid pressure is provided at the pump head of the plunger pump 3. In this embodiment, the pressure detection sensor 16 is added to detect the pressure of the flowing oil, and then compared with the oil pressure preset in the controller. Once it is found that the oil pressure is too high, the oil pressure can be adjusted to reduce the oil pressure. How the background controller obtains the oil pressure and how to realize automatic control belongs to the conventional technology in this field, so it will not be described in detail.

[0039] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.

Claims

1. A high-speed coil machine hydraulic system, comprising a 37 kW main motor (1), a coupling (2) and a plunger pump (3), wherein the output shaft of the 37 kW main motor (1) is connected to the coupling (2), and the other end of the coupling (2) is connected to the plunger pump (3), characterized in that: The invention also includes a hydraulic solenoid valve (4), a 7KW auxiliary motor (5), and a gear pump (6). The output of the 7KW auxiliary motor (5) is connected to the gear pump (6). The first fluid port and the second fluid port of the gear pump (6) are respectively connected to the two ports of the hydraulic solenoid valve (4). The third fluid port and the fourth fluid port of the plunger pump (3) are respectively connected to the other two ports of the hydraulic solenoid valve (4). The return port of the hydraulic solenoid valve (4) is connected to the output port of the hydraulic oil tank (7). The output port of the hydraulic solenoid valve (4) is connected to the input port of the hydraulic oil tank (7). The electric control end of the hydraulic solenoid valve (4) is connected to a hydraulic solenoid valve switching switch (8) for switching the power supply of the left and right coils in the hydraulic solenoid valve (4).

2. A high-speed coiler hydraulic system according to claim 1, characterized in that: An overflow valve (9) is connected between the return port of the hydraulic solenoid valve (4) and the output port of the hydraulic oil tank (7).

3. The high-speed coiler hydraulic system according to claim 2, characterized in that: A throttle valve (10) is connected between the output port of the hydraulic solenoid valve (4) and the input port of the hydraulic oil tank (7).

4. A high-speed coiler hydraulic system according to claim 3, characterized in that: A flow detection sensor (17) with a display screen is connected between the return port of the hydraulic solenoid valve (4) and the output port of the hydraulic oil tank (7). The flow detection sensor (17) is used to detect the flow rate of oil in the oil circuit.

5. The high-speed coiler hydraulic system according to claim 4, characterized in that: A filter (11) is connected between the return port of the hydraulic solenoid valve (4) and the output port of the hydraulic oil tank (7).

6. The high-speed coiler hydraulic system according to claim 5, characterized in that: A sewage outlet (12) for discharging sewage is provided at the bottom of the filter (11).

7. The high-speed coiler hydraulic system according to claim 4, characterized in that: A connecting bracket (13) is provided on the side of the 37 kW main motor (1), and a solar panel (14) and an energy storage device (15) are provided on the connecting bracket (13). The solar panel (14) is electrically connected to the energy storage device (15), and the energy storage device (15) is electrically connected to the hydraulic solenoid valve (4).

8. A high-speed coiler hydraulic system according to claim 4, 5, 6 or 7, characterized in that: A pressure detection sensor (16) for detecting the magnitude of fluid pressure is provided at the pump head of the plunger pump (3).

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