CN102323102B - A method for controlling the tension force of a hydraulic jack - Google Patents
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Abstract
Description
技术领域 technical field
本发明涉及机电控制领域中一种液压千斤顶张拉力的控制方法。The invention relates to a method for controlling tension force of a hydraulic jack in the field of electromechanical control.
背景技术 Background technique
液压千斤顶是由人力或电力驱动液压泵，通过液压系统传动，用缸体或活塞作为顶举件。液压千斤顶结构紧凑，能平稳顶升重物，起重量大，行程大，传动效率较高，故应用较广。目前为保证液压千斤顶张拉力的准确性，一般采用定期对张拉设备系统：千斤顶、油泵、油表、油管进行“油压——输出力”的标定。标定工作一般是在压力机上进行，以千斤顶的主动工作状态为准，分级记录，取三次测量的平均值，制成图表或绘出曲线，作为张拉时的依据。其不足之处有：一、由于“油压——输出力”采用的是取三次测量记录的平均值，制成图表或绘出曲线，作为张拉时的依据，因此液压千斤顶张拉力的准确度较低；二、由于是对张拉设备系统：千斤顶、油泵、油表、油管进行标定，“油压——输出力”与千斤顶、油表一一对应，千斤顶、油表都不能互换；三、现有的张拉设备系统：千斤顶、油泵、油表、油管没有输出力速度和峰值及千斤顶张拉次数的显示。The hydraulic jack is a hydraulic pump driven by manpower or electricity, driven by a hydraulic system, and a cylinder or a piston is used as a jacking piece. The hydraulic jack has a compact structure, can lift heavy objects smoothly, has a large lifting capacity, a large stroke, and high transmission efficiency, so it is widely used. At present, in order to ensure the accuracy of the tensioning force of the hydraulic jack, it is generally used to regularly calibrate the tensioning equipment system: jacks, oil pumps, oil gauges, and oil pipes for "oil pressure-output force". The calibration work is generally carried out on the press, based on the active working state of the jack, recorded in grades, and the average value of three measurements is taken to make a chart or draw a curve as the basis for tensioning. Its shortcomings are as follows: 1. Since the "oil pressure-output force" uses the average value of three measurement records to make a chart or draw a curve as the basis for tensioning, the accuracy of the hydraulic jack's tension is accurate. Second, due to the calibration of the tensioning equipment system: jack, oil pump, oil gauge, and oil pipe, the "oil pressure-output force" corresponds to the jack and the oil gauge one by one, and the jack and the oil gauge cannot be interchanged ; Three, the existing tensioning equipment system: jacks, oil pumps, oil gauges, oil pipes do not have the display of output force speed and peak value and jack tensioning times.
发明内容 Contents of the invention
针对上述现有技术，本发明的目的旨在提供一种液压千斤顶张拉力控制方法，可分别实现千斤顶、测量油表互换，还可显示、记录和存储输出力的大小、速度、峰值和千斤顶张拉次数，当张拉设备系统：千斤顶、油泵、测量油表、油管设置好受力构件的截面积时，输出力也可以表示受力构件的应力大小、速度和峰值；提高控制液压千斤顶张拉力的准确度和可靠性，从而提高整个系统的准确度和效率。In view of the above-mentioned prior art, the object of the present invention is to provide a hydraulic jack tension control method, which can respectively realize the interchangeability of the jack and the measuring oil gauge, and can also display, record and store the magnitude, speed, peak value and the value of the output force of the jack. Tensioning times, when the tensioning equipment system: jack, oil pump, measuring oil gauge, oil pipe set the cross-sectional area of the stressed member, the output force can also represent the stress size, speed and peak value of the stressed member; improve the control hydraulic jack tension Accuracy and reliability, thereby improving the accuracy and efficiency of the entire system.
为达到上述目的，本发明采取的技术方案是：For achieving the above object, the technical scheme that the present invention takes is:
一种液压千斤顶张拉力的控制方法，至少包括以下步骤：A method for controlling tension of a hydraulic jack at least includes the following steps:
1).对由千斤顶、油泵、标准油表、测量油表和油管组成的张拉设备系统进行“油压——输出力”和“油压——油表示值”标定，并存储张拉设备系统的“油压——输出力”和“油压——油表示值”两项标定数据；1). Calibrate "oil pressure - output force" and "oil pressure - oil indication value" for the tensioning equipment system composed of jack, oil pump, standard oil gauge, measuring oil gauge and oil pipe, and store the tensioning equipment Two calibration data of the system, "oil pressure - output force" and "oil pressure - oil indication value";
2)设置并存储千斤顶张拉一次输出力的最小值和最大值；设置并存储千斤顶实际张拉的累加次数和千斤顶的允许张拉最大次数；2) Set and store the minimum and maximum values of the output force of the jack once stretched; set and store the accumulated times of the jack's actual stretching and the maximum allowable stretching times of the jack;
3).读取步骤1)中所述的“油压——输出力”、“油压——油表示值”及步骤2)中所述千斤顶张拉一次输出力的最小值、最大值、千斤顶实际张拉累加次数；对张拉设备系统中的千斤顶、油泵、测量油表、油管的输出力实现逐点控制进行张拉，对两点之间的输出力值采用差值法计算补充，显示、记录并可存储输出力的大小、速度和峰值；当千斤顶实际输出力在一段连续时间内同时满足小于步骤2)中所述的千斤顶张拉输出力最小值、大于步骤2)中所述千斤顶张拉输出力最大值，则该段时间称为千斤顶的一个张拉周期，即张拉一次，千斤顶实际张拉次数自动累加1次并存储，也可手动添加并存储千斤顶实际张拉的累加次数；3). Read the "oil pressure - output force" and "oil pressure - oil indication value" mentioned in step 1) and the minimum value, maximum value, Actual jacking and accumulative times of the jack; the output force of the jack, oil pump, measuring oil gauge, and oil pipe in the tensioning equipment system is controlled point by point for tensioning, and the output force value between two points is calculated and supplemented by the difference method. Display, record and store the size, speed and peak value of the output force; when the actual output force of the jack meets the minimum value of the jack tension output force described in step 2) and greater than the minimum value of the jack tension output force described in step 2) within a continuous period of time If the output force of jack tensioning is the maximum value, this period of time is called a tensioning cycle of the jack, that is, once the jack is stretched, the actual number of tensioning times of the jack will be automatically accumulated once and stored, and the actual jacking times can also be manually added and stored. frequency;
4).读取步骤2)中所述的千斤顶张拉的允许张拉最大次数和步骤3)中所述的千斤顶张拉的实际张拉累加次数，当步骤3)中所述的千斤顶张拉的实际张拉累加次数等于或大于步骤2)中所述的千斤顶张拉的允许张拉最大次数时，千斤顶张拉系统可提示应及时标定该千斤顶。4). Read the maximum number of jack tensions allowed in step 2) and the actual cumulative number of jack tensions described in step 3), when the jack tension described in step 3) When the actual accumulative number of tensioning times is equal to or greater than the maximum number of jack tensioning allowed in step 2), the jack tensioning system can prompt that the jack should be calibrated in time.
所述液压是高于张拉设备系统中千斤顶、油泵、测量油表、油管的测量油表准确度并可以溯源的标准油表示值，油表示值是测量油表的示值，输出力包括输出力的大小、速度和峰值，步骤1)中所述测量油表可以是两只或两只以上。The hydraulic pressure is a standard oil representation value that is higher than the accuracy of the measurement oil gauge of the jack, oil pump, oil gauge, and oil pipe in the tensioning equipment system and can be traced back to the source. The size, speed and peak value of the force, the measuring oil gauge described in step 1) can be two or more than two.
附图说明 Description of drawings
图1是张拉设备系统中油泵、标准油表和测量油表及千斤顶的连接方框示意图；Fig. 1 is the connection block schematic diagram of oil pump, standard oil gauge and measuring oil gauge and jack in the tensioning equipment system;
图2是张拉设备系统中油泵、测量油表、千斤顶的连接方框示意图；Fig. 2 is a schematic diagram of the connecting block of the oil pump, measuring oil meter and jack in the tensioning equipment system;
图3是张拉设备系统中油泵、标准油表、千斤顶的连接方框示意图；Fig. 3 is the connection block schematic diagram of oil pump, standard oil gauge, jack in the tensioning equipment system;
图4是张拉设备系统中油泵、标准油表和测量油表的连接方框示意图。Fig. 4 is a schematic block diagram of the connection of the oil pump, the standard oil gauge and the measuring oil gauge in the tensioning equipment system.
在图中：In the picture:
1-油泵，2-标准油表，1-Oil pump, 2-Standard oil gauge,
3-测量油表，4-千斤顶。3-Measuring oil gauge, 4-jack.
具体实施方式 Detailed ways
实施例一：Embodiment one:
1).一次性得到“油压——输出力”、“油压——油表示值”两项数据：1). Obtain two data of "oil pressure - output force" and "oil pressure - oil indication value" at one time:
如图1所示，对张拉设备系统：千斤顶、油泵、标准油表、测量油表、油管进行“油压——输出力”、“油压——油表示值”标定，并存储张拉设备系统的“油压——输出力”、“油压——油表示值”两项标定数据；标定工作是在压力机上进行，以千斤顶的主动工作状态为准，逐点记录并存储油压、油表示值及输出力，取三次测量的平均值，自动制成可存储、读取的图表或绘出曲线。As shown in Figure 1, the tensioning equipment system: jacks, oil pumps, standard oil gauges, measuring oil gauges, and oil pipes are calibrated for "oil pressure-output force" and "oil pressure-oil indication value", and store the tension The two calibration data of "oil pressure-output force" and "oil pressure-oil indication value" of the equipment system; the calibration work is carried out on the press, and the oil pressure is recorded and stored point by point based on the active working state of the jack , Oil indication value and output force, take the average value of three measurements, and automatically make a chart that can be stored and read or draw a curve.
2).设置并存储千斤顶张拉一次输出力的最小值和最大值，可设置并存储千斤顶实际张拉的累加张拉次数和千斤顶的允许张拉最大次数。2). Set and store the minimum and maximum values of the output force of the jack once stretched, and the accumulated stretching times of the jack's actual stretching and the maximum allowable stretching times of the jack can be set and stored.
3).如图2所示，读取步骤1)中所述的“油压——输出力”、“油压——油表示值”及步骤2)中所述千斤顶张拉一次输出力的最小值、最大值还有千斤顶实际张拉累加次数，对张拉设备系统中的千斤顶、油泵、测量油表、油管的输出力实现逐点控制进行张拉，对两点之间的输出力值采用差值法计算补充，显示、记录并可存储输出力的大小、速度和峰值；当千斤顶实际输出力在一段连续时间内同时满足小于步骤2)中所述的千斤顶张拉输出力最小值、大于步骤2)中所述千斤顶张拉输出力最大值，则该段时间称为千斤顶的一个张拉周期，即张拉一次，千斤顶实际张拉次数自动累加1次并存储，也可手动添加并存储千斤顶的实际张拉累加次数；3). As shown in Figure 2, read the "oil pressure - output force" and "oil pressure - oil indication value" described in step 1) and the output force of the jack once in step 2). The minimum value, the maximum value, and the actual jacking and accumulative times of the jack are used to control the output force of the jack, oil pump, measuring oil gauge, and oil pipe in the tensioning equipment system point by point for tensioning, and the output force value between two points Use the difference method to calculate and supplement, display, record and store the size, speed and peak value of the output force; when the actual output force of the jack satisfies the minimum value of the jack tension output force described in step 2) at the same time, If it is greater than the maximum value of the jack tensioning output force mentioned in step 2), this period of time is called a jack tensioning cycle, that is, once the jack is stretched, the actual number of jack tensions is automatically accumulated once and stored, or it can be manually added and stored. Store the actual tension accumulation times of the jack;
4).读取步骤2)中所述的千斤顶张拉的允许张拉最大次数和步骤3)中所述的千斤顶张拉的实际张拉累加次数，当步骤3)中所述的千斤顶张拉的实际张拉累加次数等于或大于步骤2)中所述的千斤顶张拉的最大张拉次数时，千斤顶张拉系统可提示应及时标定该千斤顶。4). Read the maximum number of jack tensions allowed in step 2) and the actual cumulative number of jack tensions described in step 3), when the jack tension described in step 3) When the actual accumulative number of times of tensioning is equal to or greater than the maximum number of times of jack tensioning described in step 2), the jack tensioning system can prompt that the jack should be calibrated in time.
实施例二：Embodiment two:
1).分两次先后得到“油压——输出力”、“油压——油表示值”两项数据；也可以缺一项数据就补一项数据：1). Obtain the two data of "oil pressure - output force" and "oil pressure - oil indication value" in two successively; you can also fill in one data if one data is missing:
如图3所示，对张拉设备系统：千斤顶、油泵、标准油表、油管进行“油压——输出力”标定，并存储张拉设备系统的“油压——输出力”标定数据；如图4所示，对张拉设备系统：油泵、标准油表、测量油表、油管进行“油压——油表示值”标定，并存储油泵、标准油表、测量油表、油管的“油压——油表示值”标定数据；千斤顶的标定工作是在压力机上进行，以千斤顶的主动工作状态为准，逐点记录并存储油压、输出力，取三次测量的平均值，自动制成可存储、读取的图表或绘出曲线；测量油表的标定工作可在油泵、标准油表、测量油表、油管系统中进行，逐点记录并存储油压、油表示值，取三次测量的平均值，自动制成可存储、读取的图表或绘出曲线。。As shown in Figure 3, perform "oil pressure-output force" calibration on the tensioning equipment system: jacks, oil pumps, standard oil gauges, and oil pipes, and store the "oil pressure-output force" calibration data of the tensioning equipment system; As shown in Figure 4, the tensioning equipment system: oil pump, standard oil gauge, measuring oil gauge, and oil pipe are calibrated for "oil pressure-oil indication value", and the "oil pump, standard oil gauge, measuring oil gauge, oil pipe" is stored. The calibration data of oil pressure—oil indication value”; the calibration work of the jack is carried out on the press, and the active working state of the jack shall prevail, and the oil pressure and output force shall be recorded and stored point by point, and the average value of three measurements shall be taken to automatically produce into a chart that can be stored and read or draw a curve; the calibration work of the oil meter can be carried out in the oil pump, standard oil meter, oil meter, oil pipe system, record and store the oil pressure and oil indication value point by point, take three times The average value of the measurement is automatically made into a graph or curve that can be stored and read. .
2).设置并存储千斤顶张拉一次输出力的最小值和最大值，可设置并存储千斤顶实际张拉的累加次数，可设置并存储千斤顶的允许张拉最大次数。2). Set and store the minimum and maximum values of the output force of the jack once tensioned, the accumulated times of the jack's actual tensioning can be set and stored, and the maximum allowed tensioning times of the jack can be set and stored.
3).如图2所示，读取步骤1)中所述的“油压——输出力”、“油压——油表示值”及步骤2)中所述千斤顶张拉一次输出力最小值、最大值还有千斤顶实际张拉累加次数，对张拉设备系统中的千斤顶、油泵、测量油表、油管的输出力实现逐点控制进行张拉，对两点之间的输出力值采用差值法计算补充，显示、记录并可存储输出力的大小、速度和峰值；当千斤顶实际输出力在一段连续时间内同时满足小于步骤2)中所述的千斤顶张拉输出力最小值、大于步骤2)中所述千斤顶张拉输出力最大值，则该段时间称为千斤顶的一个张拉周期，即张拉一次，千斤顶张拉次数自动累加1次并存储，也可手动添加并存储千斤顶实际张拉的累加次数；3). As shown in Figure 2, read the "oil pressure - output force" and "oil pressure - oil indication value" mentioned in step 1) and the minimum output force of the jack once stretched in step 2) Value, maximum value, and jack’s actual tensioning and accumulative times. The output force of the jack, oil pump, measuring oil gauge, and oil pipe in the tensioning equipment system is controlled point by point for tensioning. The output force value between two points is controlled by The difference method is calculated and supplemented, displaying, recording and storing the size, speed and peak value of the output force; when the actual output force of the jack satisfies the minimum value of the jack tension output force described in step 2) and greater than The maximum value of jack tension output force mentioned in step 2), then this period of time is called a jack tension cycle, that is, once tensioned, the number of jack tensions is automatically accumulated once and stored, and jacks can also be manually added and stored Accumulated times of actual stretching;
4).读取步骤2)中所述的千斤顶张拉的最大张拉次数和步骤3)中所述的千斤顶张拉的实际张拉累加次数，当步骤3)中所述的千斤顶张拉的实际张拉累加次数等于步骤2)中所述的千斤顶张拉的最大张拉次数时，千斤顶张拉系统可提示应及时标定该千斤顶。4). Read the maximum stretching times of the jack tensioning described in step 2) and the actual tensioning accumulation times of the jack tensioning described in step 3), when the jack tensioning described in step 3) When the actual accumulative times of tensioning are equal to the maximum number of jack tensioning described in step 2), the jack tensioning system can prompt that the jack should be calibrated in time.
本发明所述的油压是高于张拉设备系统：千斤顶、油泵、测量油表、油管中测量油表准确度并可以溯源的标准油表的示值，油表示值是测量油表的示值；输出力包括输出力的大小、速度和峰值，当张拉设备系统：千斤顶、油泵、测量油表、油管设置好受力构件的截面积时，输出力也可以表示受力构件的应力大小、速度和峰值；步骤1)中所述测量油表可以是两只或两只以上，而现有技术所述的油压是测量油表的示值，输出力仅有输出力的大小。The oil pressure of the present invention is higher than that of the tensioning equipment system: jacks, oil pumps, measuring oil gauges, and oil gauges in oil pipes to measure the accuracy of the oil gauge and indicate the value of the standard oil gauge that can be traced back. The oil indication value is the indication of the oil gauge. value; the output force includes the size, speed and peak value of the output force. When the tensioning equipment system: jack, oil pump, measuring oil meter, and oil pipe are set to the cross-sectional area of the stressed member, the output force can also represent the stress of the stressed member. Speed and peak value; the measuring oil gauge described in step 1) can be two or more than two, and the oil pressure described in the prior art is the indicated value of measuring the oil gauge, and the output force has only the size of the output force.
本发明所述液压千斤顶张拉力的控制方法能提供一种液压千斤顶张拉力的逐点记录、存储和读取的控制方法，液压千斤顶、测量油表可互换，显示、记录并可存储输出力的大小、速度和峰值和千斤顶张拉次数，也可以显示受力构件的应力大小、速度和峰值；提高控制液压千斤顶张拉力的准确度和可靠性，从而提高整个系统的准确度和效率，还可以替代部分拉拔仪。The control method of the tension force of the hydraulic jack described in the present invention can provide a control method for point-by-point recording, storage and reading of the tension force of the hydraulic jack. The hydraulic jack and the measuring oil meter are interchangeable, and the output force can be displayed, recorded and stored The size, speed and peak value of the hydraulic jack and the number of jack tensions can also display the stress size, speed and peak value of the stressed member; improve the accuracy and reliability of controlling the tension of the hydraulic jack, thereby improving the accuracy and efficiency of the entire system, and also It can replace part of the puller.
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|---|---|---|---|---|
| CN101988865A (en) * | 2009-07-31 | 2011-03-23 | 中国建筑第八工程局有限公司 | Hydraulic jack self-calibrating system and self-calibrating method |
| CN101989091A (en) * | 2009-07-31 | 2011-03-23 | 中国建筑第八工程局有限公司 | Prestress automatic tensioning control system and method |
-
2011
- 2011-06-24 CN CN 201110173711 patent/CN102323102B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988865A (en) * | 2009-07-31 | 2011-03-23 | 中国建筑第八工程局有限公司 | Hydraulic jack self-calibrating system and self-calibrating method |
| CN101989091A (en) * | 2009-07-31 | 2011-03-23 | 中国建筑第八工程局有限公司 | Prestress automatic tensioning control system and method |
Non-Patent Citations (5)
| Title |
|---|
| 如何做好千斤顶标定试验;高健;《山西建筑》;20100131;第36卷(第2期);347-348页 * |
| 郭全全 等.预应力数字化张拉技术的研究.《土木工程学保》.2004,第37卷(第7期),13-17页. |
| 闾开军，李彬.预应力混凝土桥梁若干张拉技术问题的探讨.《中南公路工程》.2003,第28卷(第2期),41-43，57页. * |
| 预应力数字化张拉技术的研究;郭全全 等;《土木工程学保》;20040731;第37卷(第7期);13-17页 * |
| 高健.如何做好千斤顶标定试验.《山西建筑》.2010,第36卷(第2期),347-348页. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102323102A (en) | 2012-01-18 |
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