Silent hydraulic pump station

Abstract

The utility model relates to hydraulic pump equipment technical field, the utility model discloses a kind of mute hydraulic pump station, including main oil tank, oil supplement tank, hydraulic pump group, filtration system, cooling system, intelligent control system and sound insulation layer.Oil supplement tank uses the double-layer noise reduction structure of storage layer and isolation layer;Main oil tank and oil supplement tank are connected intelligent control system through liquid level sensor, trigger automatic oil supplement device;Hydraulic pump group is driven double oil pump by servo motor, and bottom is equipped with damping support;Filter system (oil suction filter) and cooling system (water-cooled oil cooler) are integrated in the oil return line of execution component to main oil tank;Shell is coated with polyurethane foam or composite sound insulation felt, the utility model realizes ultralow noise operation, oil cleanliness and temperature intelligent control, and is suitable for precision industrial scene.

Description

Technical Field

[0001] This application relates to the field of hydraulic pump equipment technology, and specifically discloses a silent hydraulic pump station. Background Technology

[0002] In modern industry, hydraulic pump stations are widely used as key power equipment in various types of machinery. However, during operation, traditional hydraulic pump stations are prone to air intake and cavitation when the oil level in the replenishment tank is too low, leading to noise. This not only affects the working environment but may also reduce equipment lifespan and efficiency. To address this issue, this paper designs a silent hydraulic pump station with a replenishment tank to prevent noise from low oil levels. The aim is to achieve low-noise operation of the hydraulic pump station through innovative structural design and intelligent control technology. Utility Model Content

[0003] The purpose of this invention is to solve the problems of high noise and cavitation caused by low oil tank level in existing hydraulic pump stations.

[0004] To achieve the above objectives, the basic solution of this utility model provides a silent hydraulic pump station, including a main oil tank for supplying hydraulic oil, a replenishment oil tank for replenishing the main oil tank, a hydraulic pump group driven by a servo motor, a filtration system for filtering impurities and air bubbles, a cooling system for cooling the hydraulic oil, an intelligent control system, and a sound insulation layer. The replenishment oil tank is provided with a storage layer for storing oil and an isolation layer for buffering from the inside out. Both the main oil tank and the replenishment oil tank are equipped with level sensors electrically connected to the intelligent control system. The replenishment oil tank is connected to an automatic oil replenishment device. The hydraulic pump group is used to convert the pressure energy of the hydraulic oil into mechanical energy to drive the actuator. The actuator is connected to the main oil tank by a return oil pipeline. The filtration system and the cooling system are located on the return oil pipeline.

[0005] Furthermore, the sound insulation layer is polyurethane foam or composite sound insulation felt.

[0006] Furthermore, the hydraulic pump set includes a first oil pump and a second oil pump, both of which are connected to the main oil tank and can be driven by a servo motor. Control valves are provided between the first oil pump and the second oil pump and the actuator. A shock-absorbing bracket is provided at the bottom of the hydraulic pump set.

[0007] Furthermore, the automatic oil replenishment device includes an oil replenishment pipeline connected to the oil replenishment tank, an oil replenishment pump, a one-way valve, and a solenoid valve arranged sequentially on the oil replenishment pipeline, and the oil replenishment pump and the solenoid valve are both electrically connected to the intelligent control system.

[0008] Furthermore, a replenishment pipe is provided between the main oil tank and the replenishment oil tank, and a replenishment valve is provided on the replenishment oil pipe. The intelligent control system is a microprocessor integrating a data acquisition module and a control output module. The data acquisition module is used to collect the liquid levels of the replenishment oil tank and the main oil tank, and the control output module is used to control the opening of the replenishment pump, solenoid valve or replenishment valve to replenish oil when the oil level in the replenishment oil tank and the main oil tank is detected to be lower than a preset threshold.

[0009] Furthermore, the filtration system is an oil suction filter installed in the return oil pipeline.

[0010] Furthermore, the cooling system is a water-cooled oil cooler located in the return oil pipeline.

[0011] The principle and effect of this basic scheme are as follows:

[0012] Low-noise operation: By setting up a sound insulation layer and using high-performance sound insulation materials such as polyurethane foam or composite sound insulation felt, the noise generated during the operation of the hydraulic pump station is effectively blocked; at the same time, the vibration damping bracket at the bottom of the hydraulic pump group reduces the vibration of the hydraulic pump during operation, reduces the noise generated by vibration, provides a quiet working environment for operators, and reduces noise pollution.

[0013] Automatic oil replenishment ensures high reliability: Level sensors in the main oil tank and replenishment oil tank monitor the oil level in real time. The intelligent control system automatically controls the automatic oil replenishment device to replenish oil based on the level data, ensuring timely replenishment of hydraulic oil and preventing cavitation in the hydraulic pump due to low oil level. This avoids noise caused by cavitation, improves the reliability and stability of the hydraulic pump station, and extends the service life of the equipment.

[0014] High-efficiency filtration and cooling: The suction filter in the return oil line can effectively filter impurities and air bubbles, ensuring the cleanliness of the hydraulic oil; the water-cooled oil cooler can quickly reduce the temperature of the hydraulic oil, keeping it within a suitable operating temperature range, thus improving the working performance and stability of the hydraulic system.

[0015] Intelligent control and convenient operation: The intelligent control system, which integrates data acquisition and control output modules, realizes automated monitoring and control of various parts of the hydraulic pump station. Operators do not need to perform frequent manual operations, reducing labor intensity and improving work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This paper shows an overall schematic diagram of a silent hydraulic pump station according to an embodiment of this application;

[0018] Figure 2 This paper shows a schematic diagram of the oil supply tank oil circuit connection of a silent hydraulic pump station according to an embodiment of this application;

[0019] Figure 3 A schematic diagram of the hydraulic pump unit connection of a silent hydraulic pump station according to an embodiment of this application is shown. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] The reference numerals in the accompanying drawings include: main oil tank 1, servo motor 2, hydraulic pump set 3, actuator 4, filtration system 5, cooling system 6, replenishment oil tank 7, control valve 8, replenishment pump 9, check valve 10, solenoid valve 11, and level sensor 12.

[0022] A silent hydraulic pump station, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a main oil tank 1 for supplying hydraulic oil, a replenishment oil tank 7 for replenishing the main oil tank 1, a hydraulic pump group 3 driven by a servo motor 2, a filtration system 5 for filtering impurities and air bubbles, a cooling system 6 for cooling the hydraulic oil, an intelligent control system, and a sound insulation layer.

[0023] The replenishing oil tank 7 has a storage layer and an isolation layer arranged sequentially from the inside out. Both the main oil tank 1 and the replenishing oil tank 7 are equipped with a level sensor 12 that is electrically connected to the intelligent control system. The replenishing oil tank 7 is connected to an automatic oil replenishing device. The storage layer is used to store hydraulic oil, and the isolation layer serves as insulation and buffering to reduce the impact of the external environment on the hydraulic oil in the replenishing oil tank 7. The level sensor 12 can monitor the oil level in the main oil tank 1 and the replenishing oil tank 7 in real time and transmit the signal to the intelligent control system.

[0024] Preferably, the hydraulic pump unit 3 is used to convert the pressure energy of hydraulic oil into mechanical energy to drive the actuator 4. The actuator 4 is connected to the main oil tank 1 by a return oil pipeline, and the filtration system 5 and cooling system 6 are installed on the return oil pipeline. Driven by the servo motor 2, the hydraulic pump unit 3 pressurizes the hydraulic oil in the main oil tank 1 and delivers it to the actuator 4. After the actuator 4 finishes its work, the hydraulic oil flows back through the return oil pipeline. During the return process, it first passes through the filtration system 5 to remove impurities and air bubbles, then passes through the cooling system 6 to cool down, and finally flows back to the main oil tank 1, forming a complete hydraulic oil circulation loop.

[0025] Preferably, the sound insulation layer is polyurethane foam or composite sound insulation felt. Both polyurethane foam and composite sound insulation felt have good sound absorption and sound insulation properties, which can effectively absorb and block the noise generated during the operation of the hydraulic pump station. Placing the sound insulation layer on the pump station shell, the replenishing oil tank 7, and the connection points of various components can significantly reduce the impact of noise on the surrounding environment.

[0026] Preferably, the hydraulic pump unit 3 includes a first oil pump and a second oil pump, both connected to the main oil tank 1 and driven by a servo motor 2. Control valves 8 are provided between the first and second oil pumps and the actuator 4. A shock-absorbing bracket is provided at the bottom of the hydraulic pump unit 3. The two oil pumps allow for flexible adjustment of the oil supply pressure and flow rate according to actual working needs, improving the adaptability of the hydraulic pump station. The control valves 8 control the oil circuit connection between the oil pumps and the actuator 4, enabling precise control of the actuator 4. The shock-absorbing bracket effectively reduces the vibration generated during the operation of the hydraulic pump unit 3, lowering the noise caused by vibration.

[0027] Preferably, a replenishment pipe is provided between the main oil tank 1 and the replenishment oil tank 7, and a replenishment valve is provided on the replenishment pipe. The automatic replenishment device includes a replenishment pipe connected to the replenishment oil tank 7, a replenishment pump 9, a check valve 10, and a solenoid valve 11 connected in sequence on the replenishment pipe. The replenishment pump 9 and the solenoid valve 11 are both electrically connected to the intelligent control system. When the intelligent control system detects through the level sensor 12 that the oil level in the replenishment oil tank 7 or the main oil tank 1 is lower than a preset first threshold, it controls the opening of the replenishment pump 9 and the solenoid valve 11, replenishing the externally stored hydraulic oil to the replenishment oil tank 7 through the replenishment pipe, and then the replenishment oil tank 7 replenishes the hydraulic oil to the main oil tank 1 through the replenishment valve. The check valve 10 can prevent the hydraulic oil from flowing back, ensuring the normal operation of the replenishment process.

[0028] Preferably, the intelligent control system is a microprocessor integrating a data acquisition module and a control output module. The data acquisition module is used to collect the oil levels in the replenishment tank 7 and the main oil tank 1. The control output module is used to control the activation of the replenishment pump 9, solenoid valve 11, or replenishment valve to replenish oil when the oil levels in the replenishment tank 7 and the main oil tank 1 are detected to be lower than a preset threshold. By precisely controlling the replenishment process through the intelligent control system, automated replenishment is achieved, improving the reliability and stability of the hydraulic pump station operation.

[0029] Preferably, the filtration system 5 is a suction filter located in the return oil line. The suction filter can effectively filter impurities and air bubbles in the hydraulic oil, ensuring the cleanliness of the return oil, reducing wear of hydraulic system components by impurities, and improving the working performance of the hydraulic system.

[0030] Preferably, the cooling system 6 is a water-cooled oil cooler located in the return oil pipeline. Water-cooled oil coolers are characterized by high cooling efficiency and stable cooling effect, capable of quickly reducing the temperature of the hydraulic oil to a suitable operating range, ensuring the viscosity and lubrication performance of the hydraulic oil, and extending the service life of the hydraulic system.

[0031] The usage process of this utility model is as follows:

[0032] In the silent hydraulic pump station of this utility model, during normal operation, the servo motor 2 drives the hydraulic pump group 3. The first and second oil pumps in the hydraulic pump group 3 draw hydraulic oil from the main oil tank 1, converting the pressure energy of the hydraulic oil into mechanical energy. The high-pressure oil is then transported to the actuator 4 (not shown in the figure) through pipelines, driving the actuator 4 to complete the corresponding work tasks. After the actuator 4 has worked, the return oil flows back through the return oil pipeline. The return oil first passes through the suction filter (i.e., the filtration system 5) located in the return oil pipeline to filter out impurities and air bubbles in the oil, ensuring the cleanliness of the oil. Then, it passes through the water-cooled oil cooler (i.e., the cooling system 6) to cool down the hydraulic oil to a suitable range, and finally flows back to the main oil tank 1, completing the circulation of the hydraulic oil.

[0033] During the operation of the hydraulic pump station, the level sensors 12 inside the main oil tank 1 and the replenishment oil tank 7 monitor the oil level in real time and transmit the oil level signal to the intelligent control system. The data acquisition module in the intelligent control system receives the oil level signal. When it detects that the oil level in the replenishment oil tank 7 or the main oil tank 1 is lower than a preset first threshold, the control output module issues a command to open the replenishment pump 9 and the solenoid valve 11 in the replenishment device. The externally stored hydraulic oil enters the storage layer of the replenishment oil tank 7 through the replenishment pipeline, the replenishment pump 9, the check valve 10, and the solenoid valve 11. When the oil level in the replenishment oil tank 7 reaches a suitable height, the intelligent control system closes the replenishment pump 9 and the solenoid valve 11. If the oil level in the main oil tank 1 is still low, the intelligent control system controls the opening of the replenishment valve on the replenishment pipeline. The hydraulic oil in the replenishment oil tank 7 flows into the main oil tank 1 through the replenishment pipeline under the action of gravity until the oil level in the main oil tank 1 returns to normal.

[0034] Because sound insulation layers are installed on the pump station shell, the replenishment tank 7, and the connection points of various components, the sound insulation layers are made of sound insulation materials such as polyurethane foam or composite sound insulation felt, which effectively absorb and block the noise generated during the operation of the hydraulic pump station; at the same time, the vibration damping bracket installed at the bottom of the hydraulic pump group 3 reduces the vibration of the hydraulic pump during operation and reduces the noise generation, so that the entire hydraulic pump station can operate stably in a low-noise environment.

[0035] The advantages of this utility model are as follows:

[0036] Ultra-low noise: triple noise reduction with sound insulation layer + fuel tank isolation layer + shock absorption bracket;

[0037] Oil stability: Dual-stage filtration (suction filter) and real-time cooling (water-cooled oil cooler) ensure oil quality;

[0038] Intelligent operation and maintenance: automatic liquid level monitoring and oil replenishment, reducing manual intervention and avoiding noise caused by cavitation;

[0039] High reliability: The dual oil pump redundancy design ensures the system can still operate even if one pump fails.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A silent hydraulic pump station, characterized in that, The system includes a main oil tank for supplying hydraulic oil, a replenishment oil tank for replenishing the main oil tank, a hydraulic pump unit driven by a servo motor, a filtration system for filtering impurities and air bubbles, a cooling system for cooling the hydraulic oil, an intelligent control system, and a sound insulation layer. The replenishment oil tank has a storage layer for storing oil and an isolation layer for buffering, arranged sequentially from the inside out. Both the main oil tank and the replenishment oil tank are equipped with level sensors electrically connected to the intelligent control system. The replenishment oil tank is connected to an automatic oil replenishment device. The hydraulic pump unit is used to convert the pressure energy of the hydraulic oil into mechanical energy to drive the actuator. The actuator is connected to the main oil tank by a return oil pipeline. The filtration system and the cooling system are located on the return oil pipeline.

2. The silent hydraulic pump station according to claim 1, characterized in that, The sound insulation layer is polyurethane foam or composite sound insulation felt.

3. A silent hydraulic pump station according to claim 1, characterized in that, The hydraulic pump set includes a first oil pump and a second oil pump, both of which are connected to the main oil tank and can be driven by a servo motor. Control valves are provided between the first oil pump and the second oil pump and the actuator. A shock-absorbing bracket is provided at the bottom of the hydraulic pump set.

4. A silent hydraulic pump station according to claim 1, characterized in that, The automatic oil replenishment device includes an oil replenishment pipeline connected to the oil replenishment tank, an oil replenishment pump, a one-way valve and a solenoid valve arranged sequentially on the oil replenishment pipeline, and the oil replenishment pump and the solenoid valve are electrically connected to the intelligent control system.

5. A silent hydraulic pump station according to claim 4, characterized in that, A replenishment pipe is provided between the main oil tank and the replenishment oil tank, and a replenishment valve is provided on the replenishment oil pipe. The intelligent control system is a microprocessor that integrates a data acquisition module and a control output module. The data acquisition module is used to collect the liquid level of the replenishment oil tank and the main oil tank. The control output module is used to control the opening of the replenishment pump, solenoid valve or replenishment valve to replenish oil when the oil level in the replenishment oil tank and the main oil tank is detected to be lower than a preset threshold.

6. A silent hydraulic pump station according to claim 1, characterized in that, The filtration system is an oil suction filter installed in the return oil pipeline.

7. A silent hydraulic pump station according to claim 1, characterized in that, The cooling system is a water-cooled oil cooler located in the return oil pipeline.

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