Hydraulic system of high-frequency sieve

Abstract

The utility model discloses a high-frequency screen hydraulic system which comprises a hydraulic oil tank and a load, the hydraulic oil tank is connected with the load through a main oil way, the load is connected with the hydraulic oil tank through an oil return way, an adjusting control assembly is arranged on the main oil way, and a purifying assembly is arranged on the oil return way. Impurities in an oil way can be filtered through the purification assembly, the stability of system operation is guaranteed, and the frequency of the vibrating screen can reach 5000r / min by connecting and combining the vibrating motors; the vibration motor loops are connected in parallel, so that the speed regulating valve can independently regulate the rotating speed of each vibration motor; the vibration motor in different loads can be started and stopped independently through the ball valve; a plurality of loads can be driven to work through one load-sensitive variable pump; stepless speed regulation of the vibration motor can be achieved through the speed regulating valve.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to a high-frequency screen hydraulic system. Background Art

[0002] The hydraulic high-frequency screen is a screening equipment that uses a hydraulic source to provide power to the vibration source, driving the hydraulic high-frequency screen vibration device, thereby causing the screen surface to vibrate to screen materials. It has the characteristics of only vibrating the screen mesh but not the screen frame, and high frequency and low amplitude, and has a good effect in the screening process of fine and dry materials. It is increasingly widely used in sand making operations. At present, the frequency of ordinary vibrating screens can only reach 3000r / min, and the effect is not ideal when screening fine materials. Summary of the invention

[0003] In view of the deficiencies of the prior art, the utility model provides a high-frequency screen hydraulic system, which aims to solve the problem of low frequency of the vibrating screen mentioned in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-frequency screen hydraulic system, comprising a hydraulic oil tank and a load, the hydraulic oil tank is connected to the load through a main oil circuit, the load is connected to the hydraulic oil tank through a return oil circuit, the main oil circuit is provided with an adjustment control component, and the return oil circuit is provided with a purification component.

[0005] Furthermore, a load-sensitive variable pump is arranged in the hydraulic oil tank, an electric motor is arranged on the load-sensitive variable pump, the electric motor and the load-sensitive variable pump are transmission-connected, and the load-sensitive variable pump is connected to the load through a main oil circuit.

[0006] Furthermore, the main oil circuit is divided into a first main oil circuit and a second main oil circuit, the first main oil circuit and the second main oil circuit are both connected to a load, and ball valves are disposed on the first main oil circuit and the second main oil circuit.

[0007] Furthermore, the load is divided into two sets, a first load and a second load, each of the first load and the second load includes a plurality of vibration motors, and the first main oil circuit and the second main oil circuit are both provided with first branch oil circuits matching the number of vibration motors in the first load and the second load, the first branch oil circuits in the first main oil circuit are respectively connected to the vibration motors in the first load, and the first branch oil circuits in the second main oil circuit are respectively connected to the vibration motors in the second load.

[0008] Furthermore, the vibration motors in the first load and the second load are connected in parallel and connected to the hydraulic oil tank through the oil return line.

[0009] Furthermore, the regulating and controlling component includes a speed regulating valve and a flow meter which are sequentially arranged on the first branch oil circuit, a second branch oil circuit is also arranged between the speed regulating valve and the flow meter on each first branch oil circuit, a one-way valve is arranged on each second branch oil circuit, and the ends of each branch oil circuit are connected in series and connected to the feedback port of the load-sensitive variable pump through the feedback oil circuit.

[0010] Furthermore, the purification component includes an oil return filter and an air filter which are sequentially arranged on the oil return line, wherein a radiator is arranged on the oil return filter.

[0011] Furthermore, a pressure gauge and a high-pressure filter are arranged in sequence between the load-sensitive variable pump and the main oil circuit.

[0012] Furthermore, a liquid level relay and a liquid level gauge are also provided on the hydraulic oil tank.

[0013] Furthermore, an oil circuit is provided between the ball valve and the high-pressure filter and connected to the hydraulic oil tank, and an overflow valve is connected to the oil circuit.

[0014] Compared with the existing technology, the utility model has the following beneficial effects: the utility model connects and combines various vibration motors so that the frequency of the vibration screen can reach 5000r / min; the various vibration motor circuits of the utility model are connected in parallel, and the speed can be adjusted individually by the speed control valve; the vibration motors in different loads can be started and stopped individually by the ball valve; multiple loads can be driven to work by a load-sensitive variable pump; the vibration motor can be infinitely regulated by the speed control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the hydraulic principle diagram of the utility model.

[0016] In the figure: 1. Electric motor; 2. Load-sensitive variable pump; 3. Pressure gauge; 4. High-pressure filter; 5. Return oil filter; 6. Radiator; 7. Air filter; 8. Liquid level gauge; 9. Liquid level relay; 10. Overflow valve; 11. Ball valve; 12. Vibration motor; 13. Flow meter; 14. Check valve; 15. Speed ​​control valve; 16. First load; 17. Second load; 18. Hydraulic oil tank. DETAILED DESCRIPTION

[0017] like Figure 1 As shown, the utility model provides a technical solution: a high-frequency screen hydraulic system, including a hydraulic oil tank 18 and a load, the hydraulic oil tank 18 is connected to the load through a main oil circuit, the load is connected to the hydraulic oil tank 18 through a return oil circuit, the main oil circuit is provided with a regulating control component, and the return oil circuit is provided with a purification component.

[0018] The hydraulic oil tank 18 is provided with a load-sensitive variable pump 2, the load-sensitive variable pump 2 is provided with a motor 1, the motor 1 and the load-sensitive variable pump 2 are transmission-connected, and the load-sensitive variable pump 2 is connected to the load through the main oil circuit;

[0019] Among them, the main oil circuit is divided into a first main oil circuit and a second main oil circuit, the first main oil circuit and the second main oil circuit are both connected to the load, and the first main oil circuit and the second main oil circuit are both provided with ball valves 11; the load is divided into two sets of first loads 16 and second loads 17, the first loads 16 and the second loads 17 each include a plurality of vibration motors 12, and the first main oil circuit and the second main oil circuit are both provided with first branch oil circuits matching the number of vibration motors 12 in the first loads 16 and the second loads 17, the first branch oil circuits in the first main oil circuit are respectively connected to the vibration motors 12 in the first load 16, and the first branch oil circuits in the second main oil circuit are respectively connected to the vibration motors 12 in the second load 17; the ball valve 11 can individually control the start and stop of the vibration motors 12 in the first loads 16 and the second loads 17 connected to the first main oil circuit and the second main oil circuit.

[0020] The vibration motors 12 in the first load 16 and the second load 17 are connected in parallel and connected to the hydraulic oil tank 18 through the oil return line.

[0021] Among them, the adjustment and control component includes a speed regulating valve 15 and a flow meter 13 which are arranged in sequence on the first branch oil circuit, and a second branch oil circuit is also arranged between the speed regulating valve 15 and the flow meter 13 on each first branch oil circuit, and a one-way valve 14 is arranged on each second branch oil circuit. The ends of each branch oil circuit are connected in series and connected to the feedback port of the load-sensitive variable pump 2 through the feedback oil circuit; the speed of each vibration motor 12 can be adjusted by the speed regulating valve 15, and the hydraulic oil flow passing through each vibration motor 12 can be read by the flow meter 13.

[0022] Among them, the purification component includes a return oil filter 5 and an air filter 7 which are arranged in sequence on the return oil line, wherein a radiator 6 is arranged on the return oil filter 5; the return oil filter 5 can filter impurities in the hydraulic oil on the return oil line, and the radiator 6 can be used to reduce the temperature of the hydraulic oil on the return oil line; the air filter 7 can filter the air entering the hydraulic oil tank 18.

[0023] A pressure gauge 3 and a high-pressure filter 4 are arranged in sequence between the load-sensitive variable pump 2 and the main oil circuit. The pressure gauge 3 can be used to detect the working pressure of the main oil circuit, and the high-pressure filter 4 can filter the hydraulic oil entering the main oil circuit.

[0024] The hydraulic oil tank 18 is also provided with a liquid level relay 9 and a liquid level gauge 8 ; the liquid level gauge 8 can check the liquid level height of the hydraulic oil tank 18 ; the liquid level relay 9 can automatically detect the liquid level of the hydraulic oil tank 18 .

[0025] Therein, an oil circuit is provided between the ball valve 11 and the high-pressure filter 4 to connect to the hydraulic oil tank 18 , and the oil circuit is connected to a relief valve 10 , which can be used to adjust the pressure of the hydraulic oil.

[0026] In summary, the working process of the utility model is as follows: the motor 1 drives the load-sensitive variable pump 2 to operate, draws out the hydraulic oil in the hydraulic oil tank 18, and supplies it to the vibration motor 12 in the first load 16 and the second load 17 through the first branch oil circuit of the first main oil circuit and the first branch oil circuit of the second main oil circuit, respectively, drives the vibration motor 12 to operate, and the vibration motor 12 transfers the hydraulic oil back to the hydraulic oil tank 18 through the return oil circuit to complete the circulation.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high frequency screen hydraulic system, comprising a hydraulic oil tank (18) and a load, characterized in that: The hydraulic oil tank (18) is connected to the load via a main oil circuit, and the load is connected to the hydraulic oil tank (18) via an oil return circuit. The main oil circuit is provided with a regulating control component, and the oil return circuit is provided with a purification component. The main oil circuit is divided into a first main oil circuit and a second main oil circuit, the first main oil circuit and the second main oil circuit are both connected to a load, and a ball valve (11) is provided on the first main oil circuit and the second main oil circuit; The loads are divided into two sets, a first load (16) and a second load (17). The first load (16) and the second load (17) both include a plurality of vibration motors (12). The first main oil circuit and the second main oil circuit are both provided with first branch oil circuits matching the number of the vibration motors (12) in the first load (16) and the second load (17). The first branch oil circuits in the first main oil circuit are respectively connected to the vibration motors (12) in the first load (16), and the first branch oil circuits in the second main oil circuit are respectively connected to the vibration motors (12) in the second load (17).

2. A high frequency screen hydraulic system according to claim 1, characterized in that: A load-sensitive variable pump (2) is arranged in the hydraulic oil tank (18), an electric motor (1) is arranged on the load-sensitive variable pump (2), the electric motor (1) and the load-sensitive variable pump (2) are transmission-connected, and the load-sensitive variable pump (2) is connected to a load via a main oil circuit.

3. A high frequency screen hydraulic system according to claim 2, characterized in that: The vibration motors (12) in the first load (16) and the second load (17) are connected in parallel and connected to the hydraulic oil tank (18) through an oil return line.

4. A high frequency screen hydraulic system according to claim 3, characterized in that: The regulating control component comprises a speed regulating valve (15) and a flow meter (13) which are arranged in sequence on a first branch oil circuit, a second branch oil circuit is arranged between the speed regulating valve (15) and the flow meter (13) on each first branch oil circuit, a one-way valve (14) is arranged on each second branch oil circuit, and the ends of each branch oil circuit are connected in series and connected to a feedback port of a load-sensitive variable pump (2) through a feedback oil circuit.

5. A high frequency screen hydraulic system according to claim 4, characterized in that: The purification component comprises an oil return filter (5) and an air filter (7) which are sequentially arranged on the oil return line, wherein a radiator (6) is arranged on the oil return filter (5).

6. A high frequency screen hydraulic system according to claim 5, characterized in that: A pressure gauge (3) and a high-pressure filter (4) are arranged in sequence between the load-sensitive variable pump (2) and the main oil circuit.

7. A high frequency screen hydraulic system according to claim 6, characterized in that: The hydraulic oil tank (18) is also provided with a liquid level relay (9) and a liquid level meter (8).

8. A high frequency screen hydraulic system according to claim 7, characterized in that: An oil circuit is provided between the ball valve (11) and the high-pressure filter (4) and connected to the hydraulic oil tank (18), and a relief valve (10) is connected to the oil circuit.

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