CN210977269U - Man-machine interactive control system of percussion drill - Google Patents
Man-machine interactive control system of percussion drill Download PDFInfo
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Abstract
本实用新型涉及一种冲击钻机人机交互式控制系统,由冲击钻机、传动系统、液压控制系统以及电气控制系统构成,可以随时改变冲击钻机的冲次和冲击高度,以保证冲击钻机在工作过程中无须停机调整;本实用新型冲击钻机人机交互式控制系统可以实现冲击高度和冲次的不停机调节,且结构简单、使用方便,能够保障操作安全性并显著提高冲击钻机工作的效率;从而提高冲击钻机的工作效率并降低工人的劳动程度。
The utility model relates to a man-machine interactive control system for an impact drilling rig, which is composed of an impact drilling rig, a transmission system, a hydraulic control system and an electrical control system. The man-machine interactive control system of the impact drilling rig of the utility model can realize the non-stop adjustment of the impact height and the stroke frequency, and has the advantages of simple structure and convenient use, which can ensure the operation safety and significantly improve the working efficiency of the impact drilling rig; Improve the working efficiency of the impact drill and reduce the labor intensity of the workers.
Description
技术领域technical field
本实用新型属于复杂机电产品系统控制技术领域,具体涉及一种冲击钻机人机交互式控制系统。The utility model belongs to the technical field of complex electromechanical product system control, in particular to a man-machine interactive control system for an impact drilling rig.
背景技术Background technique
随着我国工业地位的提高以及施工技术的逐渐发展,大型施工项目的数量与日俱增,在基础建设领域中,凿岩开采的工程量也变得越来越大,而冲击钻机作为其中不可缺少的施工设备,具有十分重要的地位和作用。现有的冲击钻机中,针对不同地形有不同的适用类型,到如今则发展出了液压式冲击钻机、钢绳冲击钻机、挖改冲击钻机等多种多样的类型,以适应不同地质、工况和要求的作业类型,从而提高工作效率以完善开采需要。其中,钢绳冲击钻机的结构简单、操作方便、效率较高。但是,在冲击钻机正逐渐往自动化控制方向发展的今天,对于冲击钻机冲次和冲击高度的调整及其在使用人机控制装置以提高工作效率等方面仍然有待进一步的发展和改进。With the improvement of my country's industrial status and the gradual development of construction technology, the number of large-scale construction projects is increasing. equipment, has a very important position and role. Among the existing impact drilling rigs, there are different applicable types for different terrains. Now, a variety of types such as hydraulic impact drilling rigs, steel wire impact drilling rigs, and excavation-modified impact drilling rigs have been developed to adapt to different geological and working conditions. and the type of operations required, thereby improving work efficiency to perfect mining needs. Among them, the steel rope impact drilling rig has the advantages of simple structure, convenient operation and high efficiency. However, as impact drilling rigs are gradually developing in the direction of automatic control, the adjustment of stroke times and impact heights of impact drilling rigs and the use of man-machine control devices to improve work efficiency still need further development and improvement.
发明内容SUMMARY OF THE INVENTION
本实用新型的目的就在于针对上述现有技术的不足,提供一种冲击钻机人机交互式控制系统,可以随时改变冲击钻机的冲次和冲击高度,以保证冲击钻机在工作过程中无须停机调整,从而提高冲击钻机的工作效率并降低工人的劳动程度。The purpose of this utility model is to aim at the above-mentioned deficiencies of the prior art, to provide a human-machine interactive control system for the impact drilling rig, which can change the stroke times and impact height of the impact drilling rig at any time, so as to ensure that the impact drilling rig does not need to be shut down for adjustment during the working process. , so as to improve the working efficiency of the impact drilling rig and reduce the labor intensity of workers.
本实用新型的目的是通过以下技术方案实现的:The purpose of this utility model is to realize through the following technical solutions:
一种冲击钻机人工交互式控制系统,其特征在于:由冲击钻机、传动系统、液压控制系统以及电气控制系统构成;A manual interactive control system for an impact drilling rig is characterized in that: it is composed of an impact drilling rig, a transmission system, a hydraulic control system and an electrical control system;
所述冲击钻机由钻具、天轮、底座、固定于底座上的塔架、冲击机构、卷扬机构、电机座、油箱及液压缸以及固定于电机座上的直流发动机和测速发电机组成;所述液压缸与塔架的1/3处铰接,塔架的一端与底座铰接,另一端通过销轴与天轮铰接;所述钻具与钢丝绳的一端固定,钢丝绳的另一端穿过天轮、冲击机构中的压轮和导向轮进入卷扬机构的卷筒内;所述测速发电机通过联轴器与直流发动机相连;The impact drilling rig is composed of a drilling tool, a sky wheel, a base, a tower fixed on the base, an impact mechanism, a hoisting mechanism, a motor base, an oil tank and a hydraulic cylinder, as well as a DC motor and a tachogenerator fixed on the motor base; The hydraulic cylinder is hinged with 1/3 of the tower, one end of the tower is hinged with the base, and the other end is hinged with the sky wheel through a pin; one end of the drilling tool is fixed with the wire rope, and the other end of the wire rope passes through the sky wheel, The pressing wheel and guide wheel in the impact mechanism enter into the drum of the hoisting mechanism; the tachogenerator is connected with the DC motor through a coupling;
所述冲击机构还包括二级减速机构、缓冲机构、冲击梁和曲柄连杆机构;其中,二级减速机构通过曲柄连杆机构与冲击梁铰接,且二级减速机构中的冲击齿轮与曲柄连杆机构同时固定在二级减速机构的输出轴上,缓冲机构通过摇臂一端连接在冲击梁的前端,另一端与压轮铰接;The impact mechanism also includes a secondary reduction mechanism, a buffer mechanism, an impact beam and a crank connecting rod mechanism; wherein, the secondary reduction mechanism is hinged with the impact beam through the crank connecting rod mechanism, and the impact gear in the secondary reduction mechanism is connected to the crank. The lever mechanism is fixed on the output shaft of the secondary reduction mechanism at the same time, the buffer mechanism is connected to the front end of the impact beam through one end of the rocker arm, and the other end is hinged with the pressing wheel;
所述传动系统由V带组成,V带的小带轮通过联轴器与直流发动机相连,大带轮与二级减速机构的输入轴相连;The transmission system is composed of a V-belt, the small pulley of the V-belt is connected with the DC motor through a coupling, and the large pulley is connected with the input shaft of the secondary reduction mechanism;
所述液压控制系统包括通过液压软管相连的三位四通电磁换向阀、液压锁以及液压泵;油箱中的液压油经液压泵流向系统,并通过三位四通电磁换向阀控制液压缸的伸缩,进而控制塔架的摆动;所述液压锁由液控单向阀Ⅰ和液控单向阀Ⅱ组成,用于控制三位四通电磁换向阀中活塞的锁紧;The hydraulic control system includes a three-position four-way electromagnetic reversing valve, a hydraulic lock and a hydraulic pump connected by a hydraulic hose; the hydraulic oil in the oil tank flows to the system through the hydraulic pump, and controls the hydraulic pressure through the three-position four-way electromagnetic reversing valve. The expansion and contraction of the cylinder, and then control the swing of the tower; the hydraulic lock is composed of a hydraulic control check valve I and a hydraulic control check valve II, which are used to control the locking of the piston in the three-position four-way electromagnetic reversing valve;
所述电气控制系统包括单片机、与单片机相连的键盘、显示器、驱动电路以及测速模块,其中,键盘、显示器与操作面板电连接;所述单片机通过测速模块与测速发电机相连,用于检测直流发动机的转速并返回结果;所述单片机经驱动电路分别与卷扬电动机和直流发动机控制连接,所述电气控制系统包括单片机、与单片机相连的键盘、显示器、驱动电路以及测速模块,其中,键盘、显示器与操作面板相连;所述单片机通过测速模块与测速发电机相连,用于检测直流发动机的转速及反馈当前的冲次;所述单片机经PWM放大电路和驱动电路后与直流发动机控制连接,并调整其转速;所述单片机经PWM放大电路和驱动电路后还与卷扬电动机控制连接,驱动其正反转,进而控制卷扬机构进行冲击高度的调整。The electrical control system includes a single-chip microcomputer, a keyboard connected with the single-chip computer, a display, a drive circuit and a speed measuring module, wherein the keyboard, the display and the operation panel are electrically connected; the single-chip microcomputer is connected with the speed measuring generator through the speed measuring module, and is used for detecting the DC motor The rotating speed of the single-chip microcomputer is controlled and connected with the hoisting motor and the DC motor respectively through the driving circuit, and the electrical control system includes a single-chip computer, a keyboard connected with the single-chip computer, a display, a driving circuit and a speed measuring module, wherein the keyboard, the display It is connected with the operation panel; the single-chip microcomputer is connected with the tachogenerator through the speed measuring module, which is used to detect the rotation speed of the DC motor and feedback the current stroke; the single-chip microcomputer is connected to the DC motor control through the PWM amplifying circuit and the driving circuit, and adjusts The rotation speed of the single-chip microcomputer is controlled by the hoisting motor after passing through the PWM amplifying circuit and the driving circuit, so as to drive its forward and reverse rotation, and then control the hoisting mechanism to adjust the impact height.
本实用新型中直流电动机5产生的动力,经过V带减速后传递给二级减速机构控制转速并将动力传递到冲击齿轮所在轴,驱动冲击齿轮做顺时针或逆时针回转运动,通过曲柄连杆机构中的曲柄带动与冲击梁铰接端的摇杆,将冲击齿轮的回转运动通过钢丝绳转变为钻具的上下往复运动,将冲击钻进所需的力传递到岩层当中;同时卷扬电动机产生的动力,经过制动器和联轴器传入卷扬机变速箱变速后传入卷筒,实现卷扬机构的正常工作。The power generated by the
进一步地,所述液压缸与固定在底座上的支撑架铰接,所述卷扬机构、冲击机构和电机座固定在底座左侧,所述塔架、油箱和液压缸固定在底座右侧。Further, the hydraulic cylinder is hinged with the support frame fixed on the base, the hoisting mechanism, the impact mechanism and the motor base are fixed on the left side of the base, and the tower, fuel tank and hydraulic cylinder are fixed on the right side of the base.
进一步地,所述二级减速机构由两对圆柱齿轮啮合组成。Further, the secondary reduction mechanism is composed of two pairs of cylindrical gears meshing.
进一步地,所述冲击梁的左下方设有用于支撑导向轮的导向轮支架,导向轮支架固定在底座上。Further, the lower left of the impact beam is provided with a guide wheel bracket for supporting the guide wheel, and the guide wheel bracket is fixed on the base.
进一步地,所述缓冲机构主要由弹簧座、弹簧支杆、弹簧套筒为架构组成;在缓冲机构靠近压轮的一侧,由两组弹簧组并联成为缓冲弹簧组,每组弹簧组均由设置在弹簧支杆上的外缓冲弹簧和内缓冲弹簧串联而成;在缓冲机构远离压轮的一侧,外回力弹簧和内回力弹簧通过弹簧套筒串联成回力弹簧组;回力弹簧组一侧为弹簧座,另一侧装有预紧螺母。Further, the buffer mechanism is mainly composed of a spring seat, a spring support rod, and a spring sleeve; on the side of the buffer mechanism close to the pressing wheel, two groups of spring groups are connected in parallel to form a buffer spring group, and each group of spring groups is composed of The outer buffer spring and the inner buffer spring arranged on the spring support rod are connected in series; on the side of the buffer mechanism away from the pressure wheel, the outer return spring and the inner return spring are connected in series through the spring sleeve to form a return spring group; one side of the return spring group For the spring seat, the other side is equipped with a preload nut.
进一步地,所述卷扬机构还包括制动器和卷扬机变速箱;所述卷扬电动机和卷扬机变速箱的一端通过联轴器相连,制动器安装在卷扬电动机和卷扬机变速箱之间,卷筒和卷扬机变速箱的另一端相连。Further, the hoisting mechanism also includes a brake and a hoist gearbox; one end of the hoisting motor and the hoist gearbox are connected through a coupling, and the brake is installed between the hoisting motor and the hoist gearbox, and the reel and the hoist speed change. The other end of the box is connected.
进一步地,所述液压控制系统还包括用于滤去油液中杂质的滤油器和用于时刻对油压进行检测的压力表。Further, the hydraulic control system further includes an oil filter for filtering impurities in the oil and a pressure gauge for detecting the oil pressure at all times.
进一步地,所述测速模块经A/D转换器、D/A转换器与测速发电机相连,测速模块还通过A/D转换器与单片机相连。Further, the speed measuring module is connected with the speed measuring generator through the A/D converter and the D/A converter, and the speed measuring module is also connected with the single-chip microcomputer through the A/D converter.
进一步地,所述单片机经扩展芯片、D/A转换器、PWM功率放大器与卷扬电动机和直流发动机相连。Further, the single-chip microcomputer is connected to the hoisting motor and the DC motor through an expansion chip, a D/A converter, and a PWM power amplifier.
进一步地,所述操作面板设有数字显示和电源指示键,能够在工作状态下显示当前钻机的冲次,并能够通过在键盘输入所需频率的大小来改变冲次大小;还可以通过操作面板上的按钮对冲击高度进行调整,以及控制塔架的上升下降以及钻具的提升和下落。Further, the operation panel is provided with a digital display and a power indicator key, which can display the current stroke order of the drilling rig in the working state, and can change the stroke order by inputting the required frequency on the keyboard; the operation panel can also be used to change the stroke order. The buttons on the upper adjust the impact height, as well as control the rise and fall of the tower and the lifting and falling of the drilling tool.
与现有技术相比,本实用新型的有益效果在于:Compared with the prior art, the beneficial effects of the present utility model are:
1、本实用新型结合电气控制系统,利用单片机传递和接收电信号来控制电机的动作,用户只需要在键盘输入想要达到的冲次,计算机便会将数据指令传递给单片机,当单片机接收到指令后会输出信号,该信号经过D/A转换将被转换为模拟信号,经过PWM放大电路和驱动电路进而调整直流电机的转速,并通过测速模块向控制面板反馈当前的冲次;此外,还可以通过操作面板上的按钮对冲击高度进行调整,其按键信号传递到单片机后能够改变其输出信号,实现卷扬电动机的正反转,进而控制卷扬机构带动钢丝绳实现冲击高度的调整。由此,便可以实现冲击高度和冲次的不停机调节,且结构简单、使用方便,能够保障操作安全性并显著提高冲击钻机工作的效率;1. The utility model combines the electrical control system and utilizes the single-chip microcomputer to transmit and receive electrical signals to control the movement of the motor. The user only needs to input the desired number of strokes on the keyboard, and the computer will transmit the data instruction to the single-chip computer. After the command, it will output a signal, which will be converted into an analog signal through D/A conversion, and then adjust the speed of the DC motor through the PWM amplifier circuit and drive circuit, and feedback the current stroke to the control panel through the speed measurement module; in addition, also The impact height can be adjusted through the buttons on the operation panel. After the key signal is transmitted to the microcontroller, the output signal can be changed to realize the forward and reverse rotation of the hoisting motor, and then control the hoisting mechanism to drive the wire rope to realize the adjustment of the impact height. In this way, the non-stop adjustment of the impact height and the number of strokes can be realized, and the structure is simple and easy to use, which can ensure the operation safety and significantly improve the working efficiency of the impact drilling rig;
2、针对本实用新型的工作情况设计出一套有效的电气控制系统,提高了冲击钻机冲次变换和冲击高度转换的可操作性;2. A set of effective electrical control system is designed according to the working conditions of the present utility model, which improves the operability of the impact drilling rig's stroke change and impact height change;
3、针对冲击钻机在工作过程中产生的振动和颠簸,设计了一个对冲击机构的的减震装置:缓冲机构,通过缓冲机构即可对冲击过程中钢绳的长度进行补偿,从而减轻钻具在工作过程中对冲击机构的冲击,提高冲击机构的寿命;3. In view of the vibration and turbulence generated by the impact drilling rig during the working process, a shock absorption device for the impact mechanism is designed: the buffer mechanism, through which the length of the steel rope during the impact process can be compensated, thereby reducing the drilling tool. The impact on the impact mechanism during the working process increases the life of the impact mechanism;
4、本实用新型全面的提高了冲击钻机的人机交互能力,能大大降低施工的人力和财力,提高施工效率。4. The utility model comprehensively improves the human-machine interaction ability of the impact drilling rig, can greatly reduce the manpower and financial resources of construction, and improve the construction efficiency.
附图说明Description of drawings
图1为本实用新型冲击钻机总体结构示意图;1 is a schematic diagram of the overall structure of the impact drilling rig of the present invention;
图2为本实用新型冲击钻机冲击机构示意图;2 is a schematic diagram of the impact mechanism of the impact drill of the present invention;
图3为本实用新型冲击钻机缓冲机构示意图;FIG. 3 is a schematic diagram of the buffer mechanism of the impact drilling rig of the present invention;
图4为本实用新型冲击钻机传动系统示意图;4 is a schematic diagram of the transmission system of the impact drilling rig of the present invention;
图5为本实用新型电气控制系统总体框图;Fig. 5 is the overall block diagram of the electrical control system of the utility model;
图6为本实用新型接口总体设计框图;6 is a block diagram of the overall design of the interface of the utility model;
图7为本实用新型PWM功率放大器示意图;7 is a schematic diagram of the PWM power amplifier of the present utility model;
图8为8051单片机引脚图;Figure 8 is the pin diagram of 8051 microcontroller;
图9为8051单片机扩展接口设计图;Figure 9 is the design diagram of the expansion interface of the 8051 single-chip microcomputer;
图10为机电接口设计图;Figure 10 is the design diagram of the electromechanical interface;
图11为光电隔离接口;Figure 11 is the photoelectric isolation interface;
图12为控制输出接口;Figure 12 is a control output interface;
图13为复位电路;Figure 13 is a reset circuit;
图14为按键电路;Figure 14 is a key circuit;
图15为本实用新型操作面板示意图;15 is a schematic diagram of the operation panel of the present invention;
图16为CPU外部接口;Figure 16 is the external interface of the CPU;
图17为控制塔架摆动的液压回路设计图;Figure 17 is a design diagram of a hydraulic circuit for controlling the swing of the tower;
图中,1.钻具2.塔架3.天轮4.冲击机构5.直流发动机6.测速发电机7.卷扬机构8.电机座9.底座10.油箱11.液压缸41.二级减速机构42.压轮43.缓冲机构44.冲击梁45.导向轮46.导向轮支架47.曲柄连杆机构411.冲击齿轮 431.弹簧座432.摇臂433.外缓冲弹簧434.内缓冲弹簧435.弹簧支杆436.弹簧套筒437.内回力弹簧438.外回力弹簧439.预紧螺母01.V带02.卷扬电动机03. 制动器04.卷扬变速箱05.卷筒001.溢流阀002.三位四通电磁换向阀003.液控单向阀Ⅰ004.液控单向阀Ⅱ005.过滤器006.压力表007.液压马达008.液压泵。In the figure, 1.
具体实施方式Detailed ways
下面将详细描述本实用新型的实施例,实施例在附图中示出,其中自始至终相同标号表示相同的元件或具有相同功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本实用新型,而不能理解为对本实用新型的限制,基于本实用新型中的实施例,本领域中的普通技术人员在没有做出创造性劳动前提下所获得的其他实施例,都属于本实用新型的保护范围。Embodiments of the present invention will be described in detail below, and the embodiments are illustrated in the accompanying drawings, wherein the same reference numerals refer to the same elements or elements having the same function throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention. Based on the embodiments of the present invention, those skilled in the art will Other embodiments obtained under the premise of no creative work all belong to the protection scope of the present invention.
为解决冲击钻机对其冲次、冲击高度和冲击位置的调整不灵活以及工人工作量大等问题,本实用新型提供一种冲击钻机人机交互式控制系统,还提供冲击钻机人机交互式控制系统的控制方法,用于将冲击钻机和电气系统相结合,从而提高冲击钻机的工作效率,并降低工人的劳动程度;通过该实用新型的控制系统,可以随时改变冲击钻机的冲次和冲击高度,以保证冲击钻机在工作过程中无须停机调整。In order to solve the problems of inflexible adjustment of the impact drill, the impact height and impact position of the impact drill, and the large workload of workers, the utility model provides a human-machine interactive control system for the impact drill, and also provides a human-machine interactive control system for the impact drill. The control method of the system is used to combine the impact drilling rig with the electrical system, thereby improving the working efficiency of the impact drilling rig and reducing the labor level of workers; through the control system of the utility model, the stroke number and impact height of the impact drilling rig can be changed at any time. , to ensure that the impact drilling rig does not need to stop and adjust during the working process.
本实用新型冲击钻机人机交互式控制系统由冲击钻机、传动系统、液压控制系统以及电气控制系统构成。The man-machine interactive control system of the impact drilling machine of the utility model is composed of the impact drilling machine, a transmission system, a hydraulic control system and an electrical control system.
如图1所示,本实用新型冲击钻机由钻具1、塔架2、天轮3、冲击机构4、直流发动机5、测速发电机6、卷扬机构7、电机座8、底座9、油箱10以及液压缸11构成。所述塔架 2、冲击机构4、卷扬机构7、电机座8、油箱10以及液压缸11均固定在底座9上。As shown in FIG. 1 , the impact drilling rig of the present utility model consists of a
其中,液压缸11与固定在底座9上的支撑架铰接。卷扬机构7、冲击机构4和电机座8固定在底座9左侧,塔架2、油箱10和液压缸11固定在底座9右侧。所述直流发动机5和测速发电机6固定在电机座8上。所述塔架2的一端与底座9铰接,另一端与天轮3用销轴铰接。钻具1与钢丝绳的一端固定,钢丝绳的另一端穿过天轮3、冲击机构4中的压轮42 和导向轮45进入卷扬机构7的卷筒05内。所述液压缸11与塔架2的1/3处铰接。The
所述冲击机构4的组成结构如图2所示,其由二级减速机构41、压轮42、缓冲机构43、冲击梁44、导向轮45、导向轮支架46和曲柄连杆机构47组成。其中,二级减速机构41由两对圆柱齿轮啮合实现减速功能。曲柄连杆机构47一端与二级减速机构41相连,具体地,二级减速机构41中的冲击齿轮411与曲柄连杆机构47同时固定在二级减速机构41的输出轴上;曲柄连杆机构47的另一端与冲击梁44靠近钻具1的一端铰接,动力从二级减速机构 41传至曲柄连杆机构47。冲击梁44的左下方设有用于支撑导向轮45的导向轮支架46,冲击梁44与冲击钻机的导向轮支架46铰接。所述缓冲机构43与冲击梁44靠近钻具1的一端相连,压轮42与缓冲机构43铰接。The structure of the
该冲击机构4采用曲柄摇杆式冲击机构,其相对与其它冲击机构的结构要较为简单,应用起来更加方便,且工作平稳,载荷较小,对于实现冲击功能来说更为直接和方便。在冲击机构4工作的过程中,随着冲击齿轮411被驱动,将做顺时针或逆时针回转运动,在其组成的四杆冲击机构中,曲柄带动与冲击梁44铰接端的摇杆,将冲击齿轮411的回转运动通过钢丝绳转变为钻具1的上下往复运动,进而把冲击钻进所需的力传递到岩层当中。The
所述缓冲机构43如图3所示,其通过摇臂432连接在冲击梁44的前端,主要由弹簧座431、弹簧支杆435、弹簧套筒436为架构组成。在缓冲机构43靠近压轮42的一侧,由两组弹簧组并联成为缓冲弹簧组,其中,每组弹簧组均由设置在弹簧支杆435上的外缓冲弹簧433和内缓冲弹簧434串联而成;在缓冲机构43远离压轮42的一侧,外回力弹簧438和内回力弹簧437通过弹簧套筒436串联成回力弹簧组。回力弹簧组一侧为弹簧座431,另一侧装有预紧螺母。当弹簧套筒436与弹簧座431接触的时候内回力弹簧的作用已达极限,此时主要是外回力弹簧438起作用。设置缓冲机构43的目的是为了对冲击钻机起缓冲作用和补偿功能,避免冲击钻机受到冲击载荷的损伤以及由于钢丝绳伸长带来的抖动现象。As shown in FIG. 3 , the
所述传动系统如图4所示,其由V带01组成。V带01的小带轮通过联轴器与直流发动机5相连,大带轮与二级减速机构41的输入轴相连,而二级减速机构41的输出轴与冲击齿轮411和曲柄连杆机构47相连。动力从直流发动机5产生,经过V带01 进行减速,传递给二级减速机构41,该二级减速机构41能够将转速控制在可调范围内,并将动力传递到冲击齿轮411所在的轴,进而实现冲击机构4的运动。The transmission system is shown in Figure 4, which consists of a V-
所述卷扬机构7由卷扬电动机02、制动器03、卷扬机变速箱04以及卷筒05构成。其中,卷扬电动机02和卷扬机变速箱04的一端通过联轴器相连,制动器03安装在卷扬电动机02和卷扬机变速箱04之间,卷筒05和卷扬机变速箱04的另一端相连。卷扬机构7的动力从卷扬电动机02产生,经过制动器03和联轴器传入卷扬机变速箱04,接着由变速箱变速后传入卷筒05从而实现卷扬机构7的正常工作。The
所述电气系统控制总体框图如图5所示,考虑到冲击钻机的运动精度不高且负载较大,因此,本实用新型采用闭环控制系统进行控制。The overall block diagram of the electrical system control is shown in Figure 5. Considering that the motion precision of the impact drill is not high and the load is large, the present invention adopts a closed-loop control system for control.
所述电气控制系统主要由8051单片机、8255扩展芯片、驱动电路、隔离电路、测速模块、键盘及显示器等部分组成。The electrical control system is mainly composed of 8051 single-chip microcomputer, 8255 expansion chip, driving circuit, isolation circuit, speed measuring module, keyboard and display.
MSC-51具有集成度高、速度快且性价比高等优点,故在这里将采用MSC-51系列中的 8051单片机扩展系统。而其控制系统则是由微机系统部分、键盘及显示器、I/O接口、功率放大电路等部分组成;将测速模块和直流电机安装在一起,可以对直流电机的转速进行实时监控和控制。MSC-51 has the advantages of high integration, high speed and high cost performance. Therefore, the 8051 single-chip microcomputer in the MSC-51 series will be used to expand the system. The control system is composed of the microcomputer system part, keyboard and display, I/O interface, power amplifier circuit and other parts; the speed measurement module and the DC motor are installed together to monitor and control the speed of the DC motor in real time.
冲击钻机的控制系统硬件电路设计包括控制器及接口设计,机电接口设计和CPU外部接口设计。The hardware circuit design of the control system of the impact drilling rig includes the design of the controller and interface, the design of the electromechanical interface and the design of the external interface of the CPU.
其中,对于控制器接口设计,其总体设计框图如图6所示,本实用新型中采用8051单片机,在进行存储器的扩展时,扩展芯片的片内扩展信息是由单片机的P0口和P2口所提供的,其中,P0口提供低8位的地址,P2口提供高8位地址。由于P0口需要和扩展芯片的数据线直接相连,因此,为了让数据信号和地址信号之间不产生冲突,将单片机P0口的低8 位地址线通过地址锁存器连接到扩展芯片的低8位地址线上,因此在本设计中,选用8255A 芯片作为扩展芯片,选用74LS373作为地址锁存器。其中,8051单片机引脚图如图8所示, 8051单片机扩展接口如图9所示。Among them, for the controller interface design, the overall design block diagram is shown in Figure 6, the utility model adopts 8051 single-chip microcomputer, when the memory is expanded, the on-chip expansion information of the expansion chip is determined by the P0 port and the P2 port of the single-chip microcomputer. Provided, among them, the P0 port provides the lower 8-bit address, and the P2 port provides the upper 8-bit address. Since the P0 port needs to be directly connected to the data line of the expansion chip, in order to prevent conflict between the data signal and the address signal, connect the low 8-bit address line of the P0 port of the microcontroller to the low 8-bit address line of the expansion chip through the address latch. Bit address line, so in this design, the 8255A chip is selected as the expansion chip, and the 74LS373 is selected as the address latch. Among them, the pin diagram of the 8051 single-chip microcomputer is shown in Figure 8, and the expansion interface of the 8051 single-chip microcomputer is shown in Figure 9.
为了对卷扬电动机02和直流发动机5进行驱动,需要先利用控制系统求出控制量,并将控制数据传到D/A转换器中将数字量转化为模拟量,进一步可控制PWM功率放大器工作。 PWM功率放大器示意图如图7所示。In order to drive the hoisting
其中,机电接口设计如图10所示;信息输入采用光电隔离接口,如图11所示;控制输出接口如图12所示;其它辅助电路包括复位电路(如图13所示)和按键电路(如图14所示)。Among them, the electromechanical interface design is shown in Figure 10; the information input adopts the photoelectric isolation interface, as shown in Figure 11; the control output interface is shown in Figure 12; other auxiliary circuits include the reset circuit (as shown in Figure 13) and the button circuit ( as shown in Figure 14).
其中,8051单片机的CPU接口部分主要包括传感器部分(测速发电机6)、传动驱动、人机界面(操作面板)三个部分,其外部接口如图16所示;其中,图15为本实用新型操作面板设计示意图,其具有数字显示、电源指示功能,可以在工作状态下显示当前钻机的冲次,并且能够通过在键盘输入所需频率的大小来改变冲次大小;同时,通过操作面板还可以控制塔架2的上升下降以及钻具1的提升和下落。Among them, the CPU interface part of the 8051 single-chip microcomputer mainly includes three parts: the sensor part (tachogenerator 6), the transmission drive, and the man-machine interface (operation panel), and its external interface is shown in Figure 16; wherein, Figure 15 is the utility model The design diagram of the operation panel, which has the functions of digital display and power indication, can display the current stroke of the drilling rig in working state, and can change the stroke size by entering the required frequency on the keyboard; at the same time, through the operation panel, you can also Control the rise and fall of the
所述液压控制系统由溢流阀001、三位四通电磁换向阀002、液控单向阀Ⅰ003、液控单向阀Ⅱ004、过滤器005、压力表006、液压马达007以及液压泵008组成,其各元件之间由液压软管连接。图17为控制塔架2摆动的液压回路,图中溢流阀001起安全稳压作用,油箱10中的液压油经液压泵008流向系统,并通过一个三位四通电磁换向阀002来控制液压缸11的伸缩,用液控单向阀Ⅰ003、液控单向阀Ⅱ004两个液控单向阀组成液压锁,使三位四通电磁换向阀002处于中位的时候,活塞能够在其运动行程的任意一个位置被锁紧,即塔架2可停止在任意角度,滤油器005可以滤去油液中的杂质,压力表006可以时刻对油压进行检测。采用图示的液压回路既可以承受足够的负载,又可以经得起负载变化带来的干扰。在对该系统进行控制的时候,当1YA通电时,液压缸11伸出,塔架2向上摆动;当2YA通电时,液压缸11收缩,塔架2向下摆动。The hydraulic control system consists of
冲击钻机由直流发动机5提供动力,当冲击钻机启动后,与测速发电机6通过联轴器相连的直流发动机5开始工作,通过V带01传动,将动力传递到二级减速机构41 (可根据具体工况调整为多级减速机构)进行减速以达到需要转速,二级减速机构41 的输出端与曲柄连杆机构47铰接,曲柄连杆机构47另一端与冲击机构4的冲击梁44 铰接,通过曲柄连杆机构47带动冲击机构做的循环往复运动,进而带动钻具1进行碎岩钻孔工作。钻机工作过程如下,在钻机启动前首先通过控制面板上的按键控制液压缸 11的伸缩,进而控制塔架2的上升和下降以调整好冲击位置,接着通过控制面板上另外两个按键来控制卷扬机构7中的卷筒05对钢丝绳进行收放从而使钻具1提升和下落,调整到合适的位置,然后启动冲击钻机,这时在控制面板上会显示出直流发动机5的转速,此时可以通过键盘输入需要的转速来对冲击频率进行调整,也可以通过控制面板上的按键对冲击频率进行固定值的加速或减速。在冲击钻机启动后,可以根据钻孔情况继续由控制面板上的按键对冲击高度和冲击频率进行实时调整。The impact drilling rig is powered by the
本实用新型控制系统控制冲击钻机的工作原理如下:The working principle of the control system of the utility model to control the impact drilling rig is as follows:
本实用新型通过电气控制系统控制直流发动机5启动,动力由直流发动机5通过传动系统传至冲击机构4,使冲击机构4做循环往复运动,并通过钢丝绳带动钻具1做上下往复运动从而实现冲击钻机的钻孔功能。在冲击钻机工作的过程中,可以实时通过控制面板观测电机的运行转速,并能够通过电气控制系统在键盘输入数值调整直流电机5的转速,进而调整冲击机构4做往复运动的频率,从而实现对冲次做出实时调整,如此可以对冲击钻机的频率进行及时的调整,大大提高了冲击钻机的工作效率,同时也减轻了工人的操作难度。此外,在冲击钻机工作的过程中,可以通过控制操作面板上的按键对卷扬机构7进行控制,通过按键改变电信号从而控制卷扬电动机02的正反转,进而控制卷筒05对钢丝绳进行收放,实现对钻具高度的控制,如此不仅可以减轻工人的工作量,还能及时的对钻具高度进行调整;与此同时,在冲击钻机工作的过程中,还可以通过电气控制系统和液压控制系统改变油量的大小,进而控制油压以实现对液压缸11的伸缩的控制,这样,工人只需在控制面板上选择对应的按键即可实现对钻塔2的调整以调整冲击钻机钻孔的位置,这样可以很大程度上减少纵向调整钻孔位置的时间,提高工作效率。The utility model controls the
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