Hydraulic power station of unclamping cylinder

Abstract

The invention relates to the technical field of hydraulic equipment, in particular to a hydraulic power station of an unclamping cylinder. An oil tank is installed on the side of the first valve block, a gear pump is arranged in the oil tank, a motor is arranged on the other side of the first valve block, a rotating shaft of the motor is connected into the gear pump to drive the gear pump to operate, an overflow valve is arranged on the first valve block, a second valve block is installed above the first valve block, and a one-way valve and a control valve are installed on the second valve block. An oil inlet path and an oil return path are respectively arranged in the one-way valve and the control valve, and are respectively connected to execution equipment; the integrated design is adopted, the appearance size is small, space is saved, and installation is convenient and fast; the connecting points of oil ways are reduced, the oil leakage risk is greatly reduced, meanwhile, the connecting oil ways are shortened, pressure drop caused by the length of the oil ways is reduced, and the response time of the system is shortened to the maximum extent.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic equipment, and in particular to a hydraulic power station for a knife-beating cylinder. Background Art

[0002] In the tool changing operation of the machine tool, the tool-breaking device supports the spindle to loosen and clamp the tool handle. Existing tool-breaking devices mostly use split hydraulic stations. The split hydraulic station installs the power device, control and adjustment device and some auxiliary devices on the hydraulic station, while the actuator (such as the hydraulic cylinder of the chuck, the tailstock sleeve, etc.) is installed on the functional components related to the machine tool; this design makes the structure of the hydraulic station simpler, but also increases the length of the hydraulic oil pipe, the installation steps of the hydraulic device also increase, and the pressure loss, response speed and response leakage risk are increased. In addition, there are many types of hydraulic systems according to different pressure levels; therefore, it is urgent to design a tool-breaking hydraulic device with faster response, convenient installation and smaller size. Summary of the invention

[0003] The purpose of the present invention is to provide a knife-beating cylinder hydraulic power station with a reasonable design to solve the defects and shortcomings of the prior art.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises a valve block 1, an oil tank is installed on the side of the valve block 1, a gear pump is arranged in the oil tank, a motor is arranged on the other side of the valve block 1, the rotating shaft of the motor is connected to the gear pump to drive it to operate, an overflow valve is arranged on the valve block 1, a valve block 2 is installed above the valve block 1, a check valve and a control valve are installed on the valve block 2, an oil inlet circuit and an oil return circuit are respectively arranged in the check valve and the control valve, and the oil inlet circuit and the oil return circuit are respectively connected to the actuator.

[0005] Preferably, the oil outlet end of the gear pump is connected to the oil inlet circuit, the oil inlet of the relief valve is connected to the oil inlet circuit, and the oil outlet of the relief valve is connected to the oil return circuit.

[0006] Preferably, the control valve is an electromagnetic reversing valve.

[0007] Preferably, the control valve is installed above the one-way valve, and the oil inlet circuit is connected to the P port of the control valve after passing through the overflow valve, and the A port of the control valve is connected to the actuator device after passing through the one-way valve, and the oil outlet of the actuator device is connected to the B port of the control valve after passing through the one-way valve, and then connected to the oil tank from the T port of the control valve through the return oil circuit.

[0008] Preferably, an air filter is provided on the fuel tank.

[0009] Preferably, the oil inlet and oil return lines are connected to the actuator by hoses.

[0010] Preferably, the valve block 1 is also provided with interfaces connected to the oil inlet circuit and the oil return circuit, and the interfaces are provided with plugs.

[0011] Preferably, the valve block 2 is provided with an interface connected to the oil inlet, and the interface is provided with a plug.

[0012] Preferably, the set pressure value of the relief valve is 50-100 bar.

[0013] After adopting the above structure, the beneficial effects of the present invention are: The present invention adopts an integrated design with a small appearance, saves space and is easy to install; it reduces the connection points of the oil circuit, greatly reduces the risk of oil leakage, and at the same time shortens the connecting oil circuit, reduces the pressure drop caused by the length of the oil circuit, and minimizes the response time of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the hydraulic principle diagram of the present invention; Figure 2 It is a schematic diagram of the external structure of the present invention; Figure 3 is a front view of the present invention; Figure 4 It is a right side view of the present invention; Figure 5 It is a left side view of the present invention; Figure 6 It is a top view of the present invention.

[0015] Description of reference numerals: 1. Fuel tank; 2. Air filter; 3. Gear pump; 4. Motor; 5. Valve block 1; 6. Overflow valve; 7. Valve block 2; 8. Check valve; 9. Control valve. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0017] See also Figure 1-Figure 6As shown, it comprises a valve block 1 5, an oil tank 1 is installed on the side of the valve block 1 5, a gear pump 3 is arranged in the oil tank 1, a motor 4 is arranged on the other side of the valve block 1 5, the rotating shaft of the motor 4 is connected to the gear pump 3 to drive it to operate, an overflow valve 6 is arranged on the valve block 1 5, a valve block 2 7 is installed above the valve block 1 5, a check valve 8 and a control valve 9 are installed on the valve block 2 7, an oil inlet circuit and an oil return circuit are respectively arranged in the check valve 8 and the control valve 9, the check valve 8 is a hydraulically controlled check valve, the control valve 9 is an electromagnetic reversing valve, and the oil inlet circuit and the oil return circuit are respectively connected to the execution device; the oil outlet end of the gear pump 3 is connected to the oil inlet circuit, the oil inlet of the overflow valve 6 is connected to the oil inlet circuit, and the oil outlet of the overflow valve 6 is connected to the oil return circuit; The control valve 9 is installed above the one-way valve 8. The oil inlet is connected to the P port of the control valve 9 after passing through the relief valve 6. The A port of the control valve 9 is connected to the actuator after passing through the one-way valve 8. The oil outlet of the actuator is connected to the B port of the control valve 9 after passing through the one-way valve 8. Then, it is connected to the oil tank 1 from the T port of the control valve 9 through the oil return line. The oil tank 1 is provided with an air filter 2. The oil inlet and return lines are connected to the actuators with hoses. The valve block 1 5 is also provided with interfaces connected to the oil inlet and the oil return, and the interfaces are provided with plugs. The valve block 2 7 is provided with an interface connected to the oil inlet, and the interface is provided with a plug. The interface is reserved so that the plug can be removed and the pipeline can be connected for use when necessary. The set pressure value of the relief valve 6 is 50~100bar.

[0018] The motor 4 drives the gear pump 3 to rotate and converts mechanical energy into pressure energy of the hydraulic oil. The gear pump 3 is responsible for sucking the hydraulic oil out of the oil tank 1 and pressurizing it to provide power for the system. The hydraulic oil is used in combination with the oil circuit on the integrated block composed of valve block 1 5 and valve block 2 7 and the control valve 9. The direction and pressure are adjusted by the control valve 9. The function of the one-way valve 8 in the oil circuit is to prevent the oil from flowing back and damaging the gear pump 3. The overflow valve 6 limits the upper limit system pressure of the hydraulic system and can be modified as needed. The control valve 9 controls the switching of the loosening and clamping functions of the knife-beating cylinder according to the control signal input. At the same time, the one-way valve 8 can realize the pressure maintaining function of the knife-beating cylinder after the motor 4 stops.

[0019] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A hydraulic power station for a knife-beating cylinder, characterized in that: It comprises a valve block 1 (5), an oil tank (1) is installed on the side of the valve block 1 (5), a gear pump (3) is arranged in the oil tank (1), a motor (4) is arranged on the other side of the valve block 1 (5), a rotating shaft of the motor (4) is connected to the gear pump (3) to drive the gear pump to operate, an overflow valve (6) is arranged on the valve block 1 (5), a valve block 2 (7) is installed above the valve block 1 (5), a check valve (8) and a control valve (9) are installed on the valve block 2 (7), an oil inlet path and an oil return path are respectively arranged in the check valve (8) and the control valve (9), and the oil inlet path and the oil return path are respectively connected to the actuator.

2. The hydraulic power station for a knife-beating cylinder according to claim 1, characterized in that: The oil outlet end of the gear pump (3) is connected to the oil inlet circuit, the oil inlet port of the relief valve (6) is connected to the oil inlet circuit, and the oil outlet port of the relief valve (6) is connected to the oil return circuit.

3. A knife-beating cylinder hydraulic power station according to claim 2, characterized in that: The control valve (9) is an electromagnetic reversing valve.

4. The hydraulic power station for a knife-beating cylinder according to claim 3 is characterized in that: The control valve (9) is installed above the one-way valve (8); the oil inlet is connected to the P port of the control valve (9) after passing through the overflow valve (6); the A port of the control valve (9) is connected to the actuator after passing through the one-way valve (8); the oil outlet of the actuator is connected to the B port of the control valve (9) after passing through the one-way valve (8); and then connected to the oil tank (1) from the T port of the control valve (9) through the oil return line.

5. The hydraulic power station for a knife-beating cylinder according to claim 1, characterized in that: An air filter (2) is provided on the oil tank (1).

6. The hydraulic power station for a knife-beating cylinder according to claim 1, characterized in that: The oil inlet and return lines are connected to the execution equipment by flexible hoses.

7. The hydraulic power station for a knife-beating cylinder according to claim 1, characterized in that: The valve block 1 (5) is also provided with interfaces connected to the oil inlet and oil return lines, and the interfaces are both provided with plugs.

8. The hydraulic power station for a knife-beating cylinder according to claim 1, characterized in that: The valve block 2 (7) is provided with an interface connected to the oil inlet, and the interface is provided with a plug.

9. The hydraulic power station for a knife-beating cylinder according to claim 1, characterized in that: The set pressure value of the overflow valve (6) is 50-100 bar.

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