Pile driver control system and method

Abstract

The invention discloses a pile driver control system and method, and belongs to the technical field of engineering machinery control. The control system comprises an acceleration sensor, a temperature sensor and a pressure sensor; the display module is used for displaying whether the working state of the pile driver is normal; the control module receives data collected by the acceleration sensor, the temperature sensor and the pressure sensor, compares the collected data with a set threshold value, judges whether the current working state of the pile driver is normal or not, and sends a judgment result to the display module; the control module is further connected with an engine and a hydraulic pump in the pile driver, and when it is judged that the pile driver is in the abnormal working state and the vibration frequency of the pile hammer is not within the set range, the output power of the engine and the output power of the hydraulic pump are controlled to adjust the vibration frequency of the pile hammer to be within the set range. According to the method, the key parameters of the pile hammer in the operation process of the pile driver are monitored, an operator is reminded when the parameters are abnormal, automatic control is carried out, and the early failure rate of the pile driver is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery control, and in particular relates to a pile driver control system and method. Background Art

[0002] During the working process of the pile driver, its operating efficiency and reliability are directly related to the actual vibration frequency of the pile hammer. The higher the frequency of the pile hammer, the greater the exciting force. However, high frequency can easily cause problems such as high temperature of the pile hammer box and high oil leakage pressure, thereby causing mechanical failure in the pile hammer box or hydraulic failure of the vibration motor.

[0003] At present, most pile driver control systems use hydraulic and electrical control, and control the on and off of the solenoid valve by monitoring the foot switch and handle switch signals, thereby realizing the on and off of the main oil circuit of the pile driver. However, the existing pile driver control system relies entirely on the operator's experience to operate the machine during the actual construction process, and cannot control the pile driver's operating status in real time, and cannot prompt the operator and automatically control when the pile driver has abnormal operation, which easily leads to low reliability of the pile driver and frequent shutdowns for maintenance. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a pile driver control system and method to monitor key parameters of a pile driver during operation, and to remind the operator and perform automatic control when the parameters are abnormal.

[0005] The present invention provides the following technical solutions: In a first aspect, a pile driver control system is provided, comprising: an acceleration sensor for collecting the vibration frequency of a pile driver in the pile driver; a temperature sensor for collecting the temperature of a pile driver housing; a pressure sensor for collecting the oil leakage pressure of a vibration motor in the pile driver; a display module for displaying whether the working state of the pile driver is normal; a control module connected to the acceleration sensor, the temperature sensor, the pressure sensor, and the display module, for receiving the vibration frequency of the pile driver in the pile driver, the temperature of the pile driver housing, and the oil leakage pressure of the vibration motor in the pile driver collected by the acceleration sensor, the temperature sensor, and the pressure sensor, and respectively comparing the vibration frequency of the pile driver in the pile driver, the temperature of the pile driver housing, and the oil leakage pressure of the vibration motor in the pile driver with set threshold values, to determine whether the current working state of the pile driver is normal, and to send the determination result to the display module; the control module is also connected to an engine and a hydraulic pump inside the pile driver, and when it is determined that the pile driver is in an abnormal working state and the vibration frequency of the pile driver is not within a set range, the control module controls the output power of the engine and the hydraulic pump to adjust the vibration frequency of the pile driver to be within a set range.

[0006] As an optional technical solution of the present invention, green, yellow and red icons are displayed on the display module, indicating normal operation, general abnormal operation and serious abnormal operation of the pile driver respectively.

[0007] As an optional technical solution of the present invention, the display module is also used to display the comparison result between the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor and the set threshold value.

[0008] As an optional technical solution of the present invention, if any one of the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor is not within the set threshold, it indicates that the pile driver is in an abnormal working state.

[0009] As an optional technical solution of the present invention, when the display module shows that the vibration frequency of the pile driver is not within the set range, the control button on the display module is operated to select the adjustment of the vibration frequency, and the display module sends the adjustment signal to the control module, which adjusts the output power of the engine and the hydraulic pump.

[0010] As an optional technical solution of the present invention, by operating the control button on the display module, when the output power of the engine and the hydraulic pump reaches a threshold, if any one of the vibration frequency of the pile hammer, the temperature of the pile hammer box and the oil leakage pressure of the vibration motor is not within the set threshold, the display module displays a red icon.

[0011] In a second aspect, a control method of the pile driver control system based on the first aspect is provided, comprising: obtaining the vibration frequency of the pile driver, the temperature of the pile driver box, and the oil leakage pressure of the vibration motor; The vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor are compared with a set threshold value. If the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor are all within the set threshold value, it is judged that the pile driver is in a normal working state; otherwise, it is judged that the pile driver is in an abnormal working state; When the pile driver is in an abnormal working state, if a vibration frequency adjustment signal is obtained, the output power of the engine and the hydraulic pump is adjusted until the vibration frequency of the pile hammer, the temperature of the pile hammer box and the oil leakage pressure of the vibration motor are all within the set thresholds or reach the output power thresholds of the engine and the hydraulic pump.

[0012] As an optional technical solution of the present invention, the comparing the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor with the set threshold value includes: The maximum threshold of the vibration frequency of the pile hammer is set to b , the minimum threshold is set to a , and its setting range is expressed asa ≤ Q ≤ b ,in Q Indicates the vibration frequency of the pile hammer; The maximum threshold value of the temperature of the pile hammer housing is expressed as c , and its setting range is expressed as T ≤ c ,in T Indicates the temperature of the pile hammer box; The maximum threshold value of the oil drain pressure of the vibration motor is expressed as d , and its setting range is expressed as P ≤ d ,in P Indicates the oil drain pressure of the vibration motor.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The pile driver control system provided by the present invention collects key parameter data of the pile driver through acceleration sensors, temperature sensors, and pressure sensors, thereby realizing real-time monitoring of key parameters of the pile driver during the operation of the pile driver; and through the analysis of the collected data by the control module, it is determined in real time whether the working state of the pile driver is normal, and when the parameters are abnormal, the operator is reminded and automatic control is performed, thereby improving the reliability of the pile driver and significantly reducing the early failure rate of the pile driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 2 is a schematic diagram of the structure of a pile driver control system according to an embodiment of the present invention; Figure 2 4 is a flow chart of a pile driver control method in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0016] Example 1 This embodiment provides a pile driver control system, such as Figure 1 As shown, including: The acceleration sensor is used to collect the vibration frequency of the pile hammer in the pile driver.

[0017] The temperature sensor is used to collect the temperature of the pile hammer box.

[0018] Pressure sensor, used to collect the oil leakage pressure of the vibration motor in the pile driver.

[0019] The display module is used to display whether the working status of the pile driver is normal.

[0020] Furthermore, green, yellow and red icons are displayed on the display module, indicating normal operation, general abnormal operation and serious abnormal operation of the pile driver respectively.

[0021] Furthermore, the display module is also used to display the comparison results between the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor and the set threshold value.

[0022] The control module is connected to the acceleration sensor, the temperature sensor, the pressure sensor and the display module, and is used to receive the vibration frequency of the pile hammer in the pile driver, the temperature of the pile hammer box, and the oil leakage pressure of the vibration motor in the pile driver collected by the acceleration sensor, the temperature sensor and the pressure sensor, and respectively compare the vibration frequency of the pile hammer in the pile driver, the temperature of the pile hammer box, and the oil leakage pressure of the vibration motor in the pile driver with the set threshold values ​​to determine whether the current working state of the pile driver is normal, and send the determination result to the display module.

[0023] The control module is also connected to the engine and hydraulic pump inside the pile driver. When it is determined that the pile driver is in an abnormal working state and the vibration frequency of the pile hammer is not within a set range, the control module controls the output power of the engine and hydraulic pump to adjust the vibration frequency of the pile hammer within the set range.

[0024] In this embodiment, if any one of the vibration frequency of the pile hammer, the temperature of the pile hammer housing, and the oil drain pressure of the vibration motor is not within the set threshold, it indicates that the pile driver is in an abnormal working state. When the display module shows that the vibration frequency of the pile hammer is not within the set range, the control button on the display module is operated to select to adjust the vibration frequency, and the display module sends the adjustment signal to the control module, and the control module adjusts the output power of the engine and the hydraulic pump.

[0025] Furthermore, the display module is provided with a control button for selecting whether to adjust the vibration frequency of the pile hammer. When the control button on the display module is operated, when the output power of the engine and the hydraulic pump reaches a threshold, if any one of the vibration frequency of the pile hammer, the temperature of the pile hammer box and the oil drain pressure of the vibration motor is not within the set threshold, the display module displays a red icon.

[0026] Example 2 This embodiment provides a control method based on Embodiment 1. Figure 2 As shown, specifically including: The vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor are obtained.

[0027] The vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor are compared with the set threshold value. If the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor are all within the set threshold value, it is judged that the pile driver is in a normal working state; otherwise, it is judged that the pile driver is in an abnormal working state.

[0028] When the pile driver is in an abnormal working state, if a vibration frequency adjustment signal is obtained, the output power of the engine and the hydraulic pump is adjusted until the vibration frequency of the pile hammer, the temperature of the pile hammer box and the oil leakage pressure of the vibration motor are all within the set thresholds or reach the output power thresholds of the engine and the hydraulic pump.

[0029] In this embodiment, the maximum threshold of the vibration frequency of the pile hammer is set to b , the minimum threshold is set to a , and its setting range is expressed as a ≤ Q ≤ b ,in Q represents the vibration frequency of the pile hammer. The maximum threshold value of the temperature of the pile hammer housing is expressed as c , and its setting range is expressed as T ≤ c ,in T The maximum threshold of the oil leakage pressure of the vibration motor is expressed as d , and its setting range is expressed as P ≤ d ,in P Indicates the oil drain pressure of the vibration motor. See Table 1 for specific working conditions of the pile driver.

[0030] Table 1 Pile driver working status table state Vibration frequency comparison Box temperature comparison Drain Pressure Comparison Result determination Display results State 1 ≤≤ ≤ ≤ Working fine Green Icon State 2 ≤≤ ≤ ＞ Abnormal working Yellow icon text prompt: Vibration motor oil drain pressure is high, please stop the machine for inspection State 3 ≤≤ ＞ ＞ Abnormal working Yellow icon text prompt: vibration motor oil drain pressure is high, box temperature is high, please stop the machine for inspection State 4 ≤≤ ＞ ≤ Abnormal working Yellow icon text prompt: The box temperature is high, please stop the machine for inspection State 5 ＜ ≤ ≤ Abnormal working Yellow icon text prompt: Low vibration frequency, please operate the control button State 6 ＜ ≤ ＞ Abnormal working Yellow icon text prompt: The vibration frequency is low, the vibration motor oil leakage pressure is high, please stop the machine for inspection Status 7 ＜ ＞ ＞ Abnormal working Red icon text prompt: low vibration frequency, high vibration motor oil leakage pressure, high box temperature, please stop the machine for inspection State 8 ＜ ＞ ≤ Abnormal working Red icon text prompt: low vibration frequency, high box temperature, please stop and check Status 9 ＞ ≤ ≤ Abnormal working Yellow icon text prompt: The vibration frequency is high. Is the control button operated? State 10 ＞ ≤ ＞ Abnormal working Red icon text prompt: The vibration frequency is high, the vibration motor oil leakage pressure is high, whether to operate the control button State 11 ＞ ＞ ≤ Abnormal working Red icon text prompt: high vibration frequency, high box temperature, whether to operate the control button State 12 ＞ ＞ ＞ Abnormal working Red icon text prompt: high vibration frequency, high vibration motor oil leakage pressure, high box temperature, whether to operate the control button As shown in Table 1, for state 2, state 3, state 4, state 6, state 7, and state 8, the display module reminds the operator to perform a shutdown inspection.

[0031] For state 5, after operating the control button, the control module sends control signals to the engine and hydraulic pump to increase the output power of the engine and hydraulic pump. a , b When the output power of the engine and hydraulic pump has reached the upper threshold of the output power, the vibration frequency still cannot reach a , b When the lifting vibration system is abnormal, please stop the machine for inspection.

[0032] For states 9, 10, 11, and 12, after operating the control button, the control module sends a control signal to the engine and hydraulic pump to reduce the output power of the engine and hydraulic pump. a , b When the output power of the engine and hydraulic pump has reached the lower limit of the output power, the vibration frequency still cannot reach a , b When the temperature is between 0 and 100, or one of the box temperature and oil drain pressure is out of the normal range, a red icon will be displayed and the text will read "Vibration reduction system is abnormal, please stop the machine for inspection".

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pile driver control system, characterized in that: include: An acceleration sensor is used to collect the vibration frequency of the pile hammer in the pile driver; Temperature sensor, used to collect the temperature of the pile hammer box; Pressure sensor, used to collect the oil leakage pressure of the vibration motor in the pile driver; A display module is used to display whether the working status of the pile driver is normal; A control module is connected to the acceleration sensor, the temperature sensor, the pressure sensor, and the display module, and is used to receive the vibration frequency of the pile driver in the pile driver, the temperature of the pile driver box, and the oil leakage pressure of the vibration motor in the pile driver collected by the acceleration sensor, the temperature sensor, and the pressure sensor, and respectively compare the vibration frequency of the pile driver in the pile driver, the temperature of the pile driver box, and the oil leakage pressure of the vibration motor in the pile driver with the set threshold value to determine whether the current working state of the pile driver is normal, and send the determination result to the display module; The control module is also connected to the engine and hydraulic pump inside the pile driver. When it is determined that the pile driver is in an abnormal working state and the vibration frequency of the pile hammer is not within a set range, the control module controls the output power of the engine and hydraulic pump to adjust the vibration frequency of the pile hammer within the set range.

2. The pile driver control system according to claim 1, characterized in that: The display module displays green, yellow and red icons, which respectively indicate the normal operation, general abnormal operation and serious abnormal operation of the pile driver.

3. The pile driver control system according to claim 1, characterized in that: The display module is also used to display the comparison results between the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor and the set threshold value.

4. The pile driver control system according to claim 3, characterized in that: If any one of the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil drain pressure of the vibration motor is not within the set threshold, it indicates that the pile driver is in an abnormal working state.

5. The pile driver control system according to claim 4, characterized in that: When the display module shows that the vibration frequency of the pile hammer is not within the set range, the control button on the display module is operated to select the adjustment of the vibration frequency, and the display module sends the adjustment signal to the control module, which adjusts the output power of the engine and the hydraulic pump.

6. The pile driver control system according to claim 5, characterized in that: By operating the control button on the display module, when the output power of the engine and the hydraulic pump reaches a threshold, if any one of the vibration frequency of the pile hammer, the temperature of the pile hammer box and the oil leakage pressure of the vibration motor is not within the set threshold, the display module displays a red icon.

7. A control method for a pile driver control system according to any one of claims 1 to 6, characterized in that: include: Obtaining the vibration frequency of the pile hammer, the temperature of the pile hammer housing, and the oil leakage pressure of the vibration motor; The vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor are compared with a set threshold value. If the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor are all within the set threshold value, it is judged that the pile driver is in a normal working state; otherwise, it is judged that the pile driver is in an abnormal working state; When the pile driver is in an abnormal working state, if a vibration frequency adjustment signal is obtained, the output power of the engine and the hydraulic pump is adjusted until the vibration frequency of the pile hammer, the temperature of the pile hammer box and the oil leakage pressure of the vibration motor are all within the set thresholds or reach the output power thresholds of the engine and the hydraulic pump.

8. The pile driver control method according to claim 7, characterized in that: The comparing the vibration frequency of the pile hammer, the temperature of the pile hammer housing and the oil leakage pressure of the vibration motor with the set threshold value includes: The maximum threshold of the vibration frequency of the pile hammer is set to b , the minimum threshold is set to a , and its setting range is expressed as a ≤ Q ≤ b ,in Q Indicates the vibration frequency of the pile hammer; The maximum threshold value of the temperature of the pile hammer housing is expressed as c , and its setting range is expressed as T ≤ c ,in T Indicates the temperature of the pile hammer box; The maximum threshold value of the oil drain pressure of the vibration motor is expressed as d , and its setting range is expressed as P ≤ d ,in P Indicates the oil drain pressure of the vibration motor.

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