阅读说明：本技术 一种适用于液压系统的油温油压辅助控制装置 (Oil temperature and oil pressure auxiliary control device suitable for hydraulic system ) 是由 朱团团 于 2019-09-30 设计创作，主要内容包括：本发明提供了一种适用于液压系统的油温油压辅助控制装置,包括微控制器；所述微控制器通过电信号连接油温采集模块、油压采集模块及油温冷却模块；所述油温采集模块包括基于温度传感器的温度采集电路；所述油压采集模块包括基于压力传感器的压力采集电路；所述油温冷却模块包括与液压油循环管道接触的散热装置；所述微控制器将所述油温采集模块反馈的电信号与预先设置的温度阈值比对,通过电信号控制所述油温冷却模块的散热装置开启关闭。(The invention provides an oil temperature and oil pressure auxiliary control device suitable for a hydraulic system, which comprises a microcontroller; the microcontroller is connected with the oil temperature acquisition module, the oil pressure acquisition module and the oil temperature cooling module through electric signals; the oil temperature acquisition module comprises a temperature acquisition circuit based on a temperature sensor; the oil pressure acquisition module comprises a pressure acquisition circuit based on a pressure sensor; the oil temperature cooling module comprises a heat dissipation device which is in contact with a hydraulic oil circulation pipeline; the microcontroller compares the electric signal fed back by the oil temperature acquisition module with a preset temperature threshold value, and controls the opening and closing of the heat dissipation device of the oil temperature cooling module through the electric signal.)

1. The utility model provides an oil temperature oil pressure auxiliary control device suitable for hydraulic system which characterized in that: comprises a microcontroller; the microcontroller is connected with the oil temperature acquisition module, the oil pressure acquisition module and the oil temperature cooling module through electric signals; the oil temperature acquisition module comprises a temperature acquisition circuit based on a temperature sensor; the oil pressure acquisition module comprises a pressure acquisition circuit based on a pressure sensor; the oil temperature cooling module comprises a heat dissipation device which is in contact with a hydraulic oil circulation pipeline; the microcontroller compares the electric signal fed back by the oil temperature acquisition module with a preset temperature threshold value, and controls the opening and closing of the heat dissipation device of the oil temperature cooling module through the electric signal.

2. The auxiliary oil temperature and oil pressure control device suitable for the hydraulic system is characterized in that: the temperature sensor of the temperature acquisition circuit adopts a contact temperature sensor.

3. The auxiliary oil temperature and oil pressure control device suitable for the hydraulic system is characterized in that: the contact type temperature sensor is in contact type connection with hydraulic oil in the oil cylinder, and can collect oil temperature in real time.

4. The auxiliary oil temperature and oil pressure control device suitable for the hydraulic system is characterized in that: the pressure sensor of the pressure acquisition circuit adopts a strain type pressure sensor with wide measuring range and wide dynamic range; the pressure acquisition circuit amplifies and arranges the voltage signals output by the pressure sensor and sends the amplified and arranged voltage signals to the AD port of the microcontroller for analog-to-digital conversion; sampling of an AD port of the microcontroller is continuously carried out, the sampling is carried out once every 10ms, digital filtering operation is carried out once every 50ms, the obtained final pressure sampling data are compared with a preset pressure threshold value, and when the sampling data exceed the preset pressure threshold value range, the microcontroller triggers a warning unit through an electric signal to remind.

5. The auxiliary oil temperature and oil pressure control device suitable for the hydraulic system is characterized in that: the heat dissipation device is water cooling equipment or a single-cooling air conditioner.

6. The auxiliary oil temperature and oil pressure control device suitable for the hydraulic system is characterized in that: and the microcontroller controls the flow rate of the water cooling equipment through an electric signal according to the sampling data fed back by the oil temperature acquisition module and a preset temperature threshold difference value.

7. The auxiliary oil temperature and oil pressure control device suitable for the hydraulic system is characterized in that: and the microcontroller controls the temperature value of the single-cooling air conditioner through an electric signal according to the sampling data fed back by the oil temperature acquisition module and a preset temperature threshold difference value.

Technical Field

The invention belongs to the technical field of mechanical transmission, and particularly relates to an oil temperature and oil pressure auxiliary control device suitable for a hydraulic system.

Background

The hydraulic system functions to increase the force by changing the pressure. A complete hydraulic system consists of five parts, namely a power element, an execution element, a control element, an auxiliary element and hydraulic oil. Hydraulic systems can be divided into two categories: hydraulic transmission systems and hydraulic control systems. Hydraulic drive systems have as a primary function the transmission of power and motion. The hydraulic control system is designed to provide a hydraulic system output that meets specific performance requirements.

The hydraulic oil in the hydraulic system is the hydraulic medium used by the hydraulic system by utilizing the hydraulic pressure energy, and plays the roles of energy transfer, abrasion resistance, system lubrication, corrosion resistance, rust resistance, cooling and the like in the hydraulic system, and the normal work of the hydraulic system can be ensured only by ensuring the proper oil temperature and oil pressure. The traditional hydraulic system mostly adopts natural cooling and can not monitor and intelligently warn oil pressure in real time due to technical problems.

Disclosure of Invention

In view of the current situation of the prior art, the present invention provides an auxiliary control device for oil temperature and oil pressure, which is suitable for a hydraulic system, so as to solve the above-mentioned defects in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: an oil temperature and oil pressure auxiliary control device suitable for a hydraulic system comprises a microcontroller; the microcontroller is connected with the oil temperature acquisition module, the oil pressure acquisition module and the oil temperature cooling module through electric signals; the oil temperature acquisition module comprises a temperature acquisition circuit based on a temperature sensor; the oil pressure acquisition module comprises a pressure acquisition circuit based on a pressure sensor; the oil temperature cooling module comprises a heat dissipation device which is in contact with a hydraulic oil circulation pipeline; the microcontroller compares the electric signal fed back by the oil temperature acquisition module with a preset temperature threshold value, and controls the opening and closing of the heat dissipation device of the oil temperature cooling module through the electric signal.

Preferably, the temperature sensor of the temperature acquisition circuit adopts a contact temperature sensor;

preferably, the contact type temperature sensor is in contact type connection with hydraulic oil in the oil cylinder, and can collect oil temperature in real time.

Preferably, the pressure sensor of the pressure acquisition circuit adopts a strain type pressure sensor with wide measuring range and wide dynamic range; the pressure acquisition circuit amplifies and arranges the voltage signals output by the pressure sensor and sends the amplified and arranged voltage signals to the AD port of the microcontroller for analog-to-digital conversion; sampling of an AD port of the microcontroller is continuously carried out, the sampling is carried out once every 10ms, digital filtering operation is carried out once every 50ms, the obtained final pressure sampling data are compared with a preset pressure threshold value, and when the sampling data exceed the preset pressure threshold value range, the microcontroller triggers a warning unit through an electric signal to remind.

Preferably, the heat dissipation device is a water cooling device or a single cooling air conditioner.

Preferably, the microcontroller controls the flow rate of the water cooling equipment through an electric signal according to the difference value between the sampling data fed back by the oil temperature acquisition module and a preset temperature threshold value.

Preferably, the microcontroller controls the temperature value of the single-cooling air conditioner through an electric signal according to the difference value between the sampling data fed back by the oil temperature acquisition module and a preset temperature threshold value.

Has the advantages that:

the invention adopts the real-time sampled oil temperature data, realizes the corresponding control mode of the heat dissipation equipment according to the real-time oil temperature through the microcontroller, and improves the efficiency and saves the energy compared with the traditional control mode of 'cooling when starting up'; in addition, the invention also has the advantages that the oil pressure real-time monitoring is realized, the collected data is amplified, sorted, sampled for many times and subjected to filtering operation, and the reliability of the final data is ensured; the system is reliable, high in intelligent degree and strong in practicability, and is suitable for large-scale popularization.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a flow chart of the operation of the oil pressure collection module according to the present invention;

FIG. 3 is a flow chart of the operation of the water cooling apparatus of the oil temperature cooling module according to the present invention;

FIG. 4 is a flow chart of the operation of the single air conditioner of the oil temperature cooling module according to the present invention;

reference numerals: none.

Detailed Description

So that the manner in which the above recited features of the present invention can be understood and readily understood, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings, wherein:

an oil temperature and oil pressure auxiliary control device suitable for a hydraulic system is shown in fig. 1, and comprises a microcontroller; the microcontroller is connected with the oil temperature acquisition module, the oil pressure acquisition module and the oil temperature cooling module through electric signals; the oil temperature acquisition module comprises a temperature acquisition circuit based on a temperature sensor; the oil pressure acquisition module comprises a pressure acquisition circuit based on a pressure sensor; the oil temperature cooling module comprises a heat dissipation device which is in contact with a hydraulic oil circulation pipeline; the microcontroller compares the electric signal fed back by the oil temperature acquisition module with a preset temperature threshold value, and controls the opening and closing of the heat dissipation device of the oil temperature cooling module through the electric signal.

Further, in this embodiment, the temperature sensor of the temperature acquisition circuit is a contact temperature sensor;

further, in this embodiment, the contact temperature sensor is connected to the hydraulic oil in the oil cylinder in a contact manner, and can acquire the oil temperature in real time.

Further, as shown in fig. 2, the pressure sensor of the pressure acquisition circuit in the present embodiment adopts a wide-range, wide-dynamic-range strain gauge pressure sensor; the pressure acquisition circuit amplifies and arranges the voltage signals output by the pressure sensor and sends the amplified and arranged voltage signals to the AD port of the microcontroller for analog-to-digital conversion; sampling of an AD port of the microcontroller is continuously carried out, the sampling is carried out once every 10ms, digital filtering operation is carried out once every 50ms, the obtained final pressure sampling data are compared with a preset pressure threshold value, and when the sampling data exceed the preset pressure threshold value range, the microcontroller triggers a warning unit through an electric signal to remind. The invention adopts oil pressure real-time monitoring, carries out amplification arrangement, multiple sampling and filtering operation processing on the acquired data, and ensures the reliability of the final data.

Further, in this embodiment, the heat dissipation device is a water cooling device or a single cooling air conditioner.

Further, as shown in fig. 3, in this embodiment, the microcontroller controls the flow rate of the water cooling device through an electrical signal according to a difference between sampling data fed back by the oil temperature acquisition module and a preset temperature threshold value. Specifically, when the real-time temperature of the oil temperature is lower than a preset threshold range, the microcontroller controls the water cooling equipment to stop working through an electric signal; when the real-time temperature of the oil temperature is higher than a preset threshold range, the microcontroller controls the water cooling equipment to work at the maximum power through an electric signal, and the flow rate is maximum; when the real-time temperature of the oil temperature is in a preset threshold range, the running power of the water cooling equipment is increased along with the increase of the real-time temperature, namely the flow rate is increased along with the increase of the real-time temperature;

further, as shown in fig. 4, in this embodiment, the microcontroller controls the temperature value of the single-cooling air conditioner through an electrical signal according to a difference between sampling data fed back by the oil temperature acquisition module and a preset temperature threshold value. Specifically, when the real-time temperature of the oil temperature is lower than a preset threshold range, the microcontroller controls the single-cooling air conditioner to not work through an electric signal; when the real-time temperature of the oil temperature is higher than a preset threshold range, the microcontroller controls the single-cooling air conditioner to output the lowest temperature to work through an electric signal; when the real-time temperature of the oil temperature is in the preset threshold range, the output temperature of the single-cooling air conditioner is reduced along with the increase of the real-time temperature

The invention adopts the real-time sampled oil temperature data, realizes the corresponding control mode of the heat dissipation equipment according to the real-time oil temperature through the microcontroller, and improves the efficiency and saves the energy compared with the traditional control mode of 'cooling when starting up'.

It is noted that relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. And the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.