CN206288714U - For the protection device of a kind of anti-improper feeding landslide of cantilever type bucket-wheel reclaimer - Google Patents
For the protection device of a kind of anti-improper feeding landslide of cantilever type bucket-wheel reclaimer Download PDFInfo
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Abstract
本实用新型公开了一种用于悬臂式斗轮取料机的一种防不当取料塌方的保护装置,所述方法应用于悬臂式斗轮堆取料机或悬臂式斗轮取料机的取料作业,测量取料面与相邻的支撑面之间水平距离L,并根据物料的安息角设置三个报警距离值A1、A2、A3,且A1>A2>A3,根据检测值与报警距离值的比较结果,确定料堆是否具有塌方风险,并由此决定是否继续前进取料;装置包括测距传感器、传感器智能支架及控制器,测距传感器通过传感其智能支架固定于悬臂式斗轮取料机或悬臂式斗轮堆取料机上,测距传感器及传感器智能支架均关于斗轮呈两侧对称设置,测距传感器与控制器电连接,将测距传感器将检测到的距离信号传递至控制器,控制器用于对该实时距离进行分析得出是否停止作业的结论。
The utility model discloses a protection device for preventing improper reclaiming and landslides for a cantilever type bucket wheel reclaimer. The method is applied to a cantilever type bucket wheel stacker reclaimer or a cantilever type bucket wheel reclaimer For material picking operation, measure the horizontal distance L between the material picking surface and the adjacent support surface, and set three alarm distance values A 1 , A 2 , A 3 according to the repose angle of the material, and A 1 >A 2 >A 3 According to the comparison result of the detection value and the alarm distance value, it is determined whether the stockpile has a risk of collapse, and thus it is decided whether to continue to take the material; The smart support is fixed on the cantilever bucket wheel reclaimer or the cantilever bucket wheel stacker reclaimer. The distance measuring sensor and the sensor smart support are arranged symmetrically on both sides of the bucket wheel. The distance measuring sensor is electrically connected to the controller, and the distance measuring The sensor transmits the detected distance signal to the controller, and the controller is used to analyze the real-time distance to draw a conclusion on whether to stop the operation.
Description
技术领域technical field
本实用新型涉及一种用于悬臂式斗轮取料机的一种防不当取料塌方的保护装置,属于散料堆取设备领域。The utility model relates to a protection device for preventing improper reclaiming and landslide for a cantilever type bucket wheel reclaimer, which belongs to the field of bulk material stacking and reclaiming equipment.
背景技术Background technique
由于散料堆放时具有一个能够保持自然稳定状态的最大单边对地面角度,即安息角。在这个角度形成后,再往上堆加这种散料,就会自然溜下;而在取料过程中,如取料作业的位置不当,使料堆的部分角度小于安息角时,料堆易发生塌方事故。取料作业时,取料作业面位置的料堆角度过小不但会引起料堆塌方,还可能导致斗轮、斗轮取料机、附近设备和人员的安全事故。悬臂式斗轮取料机的取料位置由悬臂的移动决定,取料位置灵活不固定,因此这种取料位置或角度不当的问题很容易发生。因此开发设计一种避免悬臂式斗轮取料机取料时发生塌方的保护方法及保护装置十分有必要。Since the bulk material has a maximum single-side angle to the ground that can maintain a natural and stable state when stacked, that is, the angle of repose. After this angle is formed, if the bulk material is added to the pile, it will slide down naturally; and during the reclaiming process, if the position of the reclaiming operation is improper, so that part of the angle of the pile is smaller than the angle of repose, the pile will fall. Landslide accidents are prone to occur. During the reclaiming operation, if the angle of the material pile at the reclaiming operation surface is too small, it will not only cause the material pile to collapse, but also may cause safety accidents to the bucket wheel, bucket wheel reclaimer, nearby equipment and personnel. The reclaiming position of the cantilever bucket wheel reclaimer is determined by the movement of the cantilever, and the reclaiming position is flexible and not fixed, so the problem of improper reclaiming position or angle is easy to occur. Therefore it is very necessary to develop and design a protection method and a protection device for avoiding landslide when the cantilever type bucket wheel reclaimer is reclaimed.
发明内容Contents of the invention
针对现有技术存在的上述问题,本实用新型的目的是提供一种可以防止由于不当取料造成料面塌方的用于悬臂式斗轮取料机的一种防不当取料塌方的保护装置。In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a protection device for cantilever bucket wheel reclaimers that can prevent the material surface from collapsing due to improper reclaiming.
为实现上述发明目的,本实用新型采用的技术方案如下:For realizing above-mentioned purpose of the invention, the technical scheme that the utility model adopts is as follows:
本实用新型的目的在于提供一种用于堆取料机的防不当取料塌方的保护方法,所述方法应用于悬臂式斗轮堆取料机或悬臂式斗轮取料机的取料作业,测量取料面(即上层作业面)与相邻的支撑面(即下层作业面)之间水平距离L,并根据物料的安息角设置多个报警距离值,优选为三个报警距离值A1、A2和A3,且A1>A2>A3;其中:The purpose of this utility model is to provide a protection method for preventing improper reclaiming and landslides for stackers and reclaimers. The method is applied to the reclaiming operation of cantilever bucket wheel stackers and reclaimers or cantilever bucket wheel reclaimers. , measure the horizontal distance L between the feeding surface (i.e. the upper working surface) and the adjacent supporting surface (i.e. the lower working surface), and set multiple alarm distance values according to the repose angle of the material, preferably three alarm distance values A 1 , A 2 and A 3 , and A 1 >A 2 >A 3 ; where:
当L>A1时,当前取料面处于安全位置;When L>A 1 , the current feeding surface is in a safe position;
当A1<L<A2时,当前取料面位置已在最佳位置附近;When A 1 <L<A 2 , the current pick-up surface position is near the best position;
当A2<L<A3时,当前取料面位置已接近塌方危险区域;When A 2 <L<A 3 , the current taking surface position is close to the landslide danger zone;
当L<A3时,当前取料面位置已非常接近塌方危险区域。When L<A 3 , the current taking surface position is very close to the landslide dangerous area.
优选的,L为料堆的支撑面与取料面的切线在水平方向上二者之间的最短距离。Preferably, L is the shortest distance between the supporting surface of the stock pile and the tangent line of the material taking surface in the horizontal direction.
优选的,水平距离L可能存在多个检测结果时,取大于0的最小值为测量结果。Preferably, when there may be multiple detection results for the horizontal distance L, the minimum value greater than 0 is taken as the measurement result.
优选的,分别检测取料面和支撑面的水平方向距离,计算获得水平距离L。Preferably, the horizontal distances of the feeding surface and the supporting surface are detected respectively, and the horizontal distance L is obtained by calculation.
优选的,报警距离值A小于水平距离L,即其中d为相邻两作业面的两切点之间的垂直距离。Preferably, the alarm distance value A is less than the horizontal distance L, that is Where d is the vertical distance between two tangent points of two adjacent working surfaces.
优选的,相邻取料面的垂直距离为d,0<d<0.6D,D为斗轮直径。Preferably, the vertical distance between adjacent feeding surfaces is d, 0<d<0.6D, and D is the diameter of the bucket wheel.
优选的,根据权利要求1所述的防不当取料塌方的保护方法,其特征在于,报警值A1、A2和A3的设置范围为: Preferably, according to claim 1, the protection method for preventing improper reclaiming and landslide is characterized in that the setting ranges of alarm values A 1 , A 2 and A 3 are:
本实用新型的另一发明目的是提供一种使用所述的防不当取料塌方的保护方法的装置,包括:测距传感器、传感器智能支架及控制器,测距传感器通过传感其智能支架固定于悬臂式斗轮取料机或悬臂式斗轮堆取料机上,测距传感器及传感器智能支架均关于斗轮呈两侧对称设置,测距传感器与控制器电连接,将测距传感器将检测到的距离信号传递至控制器,控制器用于对该实时距离进行分析得出是否停止作业的结论。Another object of the invention of the present utility model is to provide a device using the protection method for preventing improper material taking and landslides, including: a distance measuring sensor, a sensor smart bracket and a controller, and the distance measuring sensor is fixed by sensing its smart bracket On the cantilevered bucket wheel reclaimer or the cantilevered bucket wheel stacker reclaimer, the distance measuring sensor and the smart sensor support are arranged symmetrically on both sides of the bucket wheel, and the distance measuring sensor is electrically connected to the controller, and the distance measuring sensor will detect The received distance signal is transmitted to the controller, and the controller is used to analyze the real-time distance to draw a conclusion whether to stop the operation.
优选的,测距传感器设于斗轮水平中轴线0.1D以上、距斗轮0.1~2m的臂架上,两组传感器关于斗轮呈对称分布。Preferably, the ranging sensor is set on the arm frame 0.1-2m away from the bucket wheel above the horizontal central axis of the bucket wheel, and the two groups of sensors are symmetrically distributed with respect to the bucket wheel.
优选的,每组传感器至少为一个独立的测距传感器。Preferably, each group of sensors is at least one independent ranging sensor.
更优选的,激光测距传感器、二维激光扫描仪、三维激光扫描仪、超声波距离传感器、雷达波距离传感器或声纳传感器。More preferably, a laser ranging sensor, a two-dimensional laser scanner, a three-dimensional laser scanner, an ultrasonic distance sensor, a radar wave distance sensor or a sonar sensor.
优选的,根据物料不同的安息角,控制器设有多档位开关,调节不同的物料报警距离值。Preferably, according to different repose angles of materials, the controller is provided with a multi-position switch to adjust different material alarm distance values.
作为一种优选的实施方式,根据物料的安息角设置3个报警距离值A1、A2、A3,控制器设有对应的报警装置,其中,As a preferred embodiment, three alarm distance values A1, A2, and A3 are set according to the angle of repose of the material, and the controller is provided with a corresponding alarm device, wherein,
当L>A1时,报警装置提醒本层取料作业可继续前进;When L>A1, the alarm device reminds that the reclaiming operation of this layer can continue to move forward;
当A1<L<A2时,报警装置提醒本层取料作业可停止;When A1<L<A2, the alarm device reminds that the reclaiming operation of this layer can be stopped;
当A2<L<A3时,报警装置提醒本层取料作业应立即停止;When A2<L<A3, the alarm device reminds the material picking operation on this layer to stop immediately;
当L<A3时,报警装置发出报警提醒。When L<A3, the alarm device sends out an alarm reminder.
更优选的,控制器自动停止斗轮取料机臂架回转和俯仰运动,停止斗轮取料机前进走形运动。More preferably, the controller automatically stops the swinging and pitching movement of the arm frame of the bucket wheel reclaimer, and stops the forward movement of the bucket wheel reclaimer.
更优选的,控制器设有屏蔽按钮,用于屏蔽自动控制停机保护动作,仅保留报警及提示灯提示功能。More preferably, the controller is provided with a shielding button, which is used to shield the automatic control shutdown protection action, and only retains the alarm and warning light prompting functions.
优选的,智能支架将测距传感器固定在悬臂式斗轮取料机或悬臂式斗轮堆取料机的臂架上。Preferably, the intelligent bracket fixes the ranging sensor on the boom of the cantilever bucket wheel reclaimer or the cantilever bucket wheel stacker reclaimer.
更优选的,智能支架的实现方式包括:机械结构、液压伺服系统、电气伺服系统或气压伺服系统。More preferably, the implementation of the smart support includes: a mechanical structure, a hydraulic servo system, an electrical servo system or a pneumatic servo system.
本实用新型提供的保护方法用于防止悬臂式斗轮堆取料机或悬臂式斗轮堵料机在取料过程中由于不当取料发生料堆塌方事故。用于悬臂式斗轮取料机的一种防不当取料塌方的保护装置准确测量料面层之间的水平方向距离及切面夹角,可及时为操作人员提供数据参考,报警装置可选择的自动或手动停止取料作业,并逐级报警,便于操作人员掌握物料取料面情况,及时做出调整,消除了堆料塌方事故的安全隐患。保证了人员的生命安全和设备的财产安全,适合在大型料场内广泛推广使用。The protection method provided by the utility model is used to prevent a material pile collapse accident due to improper material reclaiming of a cantilever bucket-wheel stacker-reclaimer or a cantilever-type bucket-wheel blocking machine during reclaiming. A protective device for preventing improper reclaiming and landslides for cantilever bucket wheel reclaimers Accurately measure the horizontal distance between the material surfaces and the angle between the cut surfaces, and can provide data reference for operators in time, and the alarm device is optional Automatically or manually stop the reclaiming operation, and alarm step by step, so that the operator can grasp the situation of the reclaiming surface of the material, make timely adjustments, and eliminate the safety hazard of the collapse of the pile. The life safety of personnel and the property safety of equipment are guaranteed, and it is suitable for widespread use in large stockyards.
附图说明Description of drawings
图1是本实用新型提供的防不当取料塌方的保护装置示意图。Fig. 1 is a schematic diagram of the protective device for preventing improper material taking and landslide provided by the utility model.
图2是本实用新型提供的防不当取料塌方的保护装置左视图。Fig. 2 is a left view of the protective device for preventing improper material taking and landslide provided by the utility model.
附图标记reference sign
101斗轮,102L左侧距离传感器,102R右侧距离传感器,103控制器,104L左距离传感器智能支架,104R右距离传感器智能支架,105臂架。101 bucket wheel, 102L left distance sensor, 102R right distance sensor, 103 controller, 104L left distance sensor smart bracket, 104R right distance sensor smart bracket, 105 boom.
具体实施方式detailed description
下面结合实施例及对比例对本实用新型作进一步详细、完整地说明。Below in conjunction with embodiment and comparative example the utility model is described in further detail and completely.
本实施例中所述的防不当取料塌方的保护方法用于取料机的防不当取料塌方的保护装置,用于防止斗轮取料机在取料作业时发生料堆塌方事故,斗轮取料机包括悬臂式斗轮取料机或悬臂式斗轮堆取料机。The protection method for preventing improper reclaiming and landslide described in this embodiment is used for the protection device for preventing improper reclaiming and landslide of the reclaimer, and is used to prevent the material pile collapse accident during the reclaiming operation of the bucket wheel reclaimer. Wheel reclaimers include cantilever bucket wheel reclaimers or cantilever bucket wheel stacker reclaimers.
如图1~2所示,斗轮取料机取料作业时,由图示的几何关系可知:L=m-n;其中n在安装该测距传感器103时以确定并已知,m为该测距传感器103测量传感器基准点至取料面前端(即图中切点)的距离。As shown in Figures 1 and 2, during the reclaiming operation of the bucket wheel reclaimer, it can be known from the geometric relationship shown in the figure: L=m-n; where n is determined and known when the distance measuring sensor 103 is installed, and m is the measuring distance. The sensor 103 measures the distance from the reference point of the sensor to the front end of the feeding surface (that is, the tangent point in the figure).
又由图示的几何关系可知:It can also be seen from the geometric relationship shown in the figure:
d=h(II)d=h(II)
因此有:So there are:
图中:In the picture:
L为料堆的下层支撑面与取料面的切线在水平方向上二者之间的最短距离;L is the shortest distance between the lower supporting surface of the stockpile and the tangent line of the reclaiming surface in the horizontal direction;
m为距离传感器测量到料堆取料面的切点的距离;m is the distance from the distance sensor to the tangent point of the stockpile reclaiming surface;
n为距离传感器测量到料堆下层支撑面的切点的距离;n is the distance from the tangent point measured by the distance sensor to the support surface of the lower layer of the pile;
d为两切点之间的垂直距离;d is the vertical distance between the two tangent points;
h为取料作业的开层高度,通常d≤0.6D;h is the opening layer height of the reclaiming operation, usually d≤0.6D;
D为斗轮直径;D is the diameter of the bucket wheel;
θ为料堆的下层支撑面与取料面的切面与水平面之间的夹角。θ is the angle between the tangent plane of the lower support surface of the stockpile and the reclaiming surface and the horizontal plane.
由公式(III)可知,若L过小,则θ小于被作业物料的安息角,此时料堆易发生塌方事故。L的准确控制是保证不发生安全事故的保障。本实用新型的保护方法及设备可以准确的自动测量L。控制器103通过公式计算得到L,从而根据L的值判定当前取料面的位置是否合适,进而保证当前层取料面位置不会过于靠前而产生塌方危险。保护方法具体计算过程如下:It can be known from formula (III) that if L is too small, then θ is smaller than the angle of repose of the material being operated, and at this time, the stockpile is prone to landslide accidents. The accurate control of L is the guarantee to ensure that no safety accidents occur. The protection method and equipment of the utility model can accurately and automatically measure L. The controller 103 calculates L through the formula, so as to determine whether the current position of the material taking surface is appropriate according to the value of L, and then ensure that the position of the material taking surface of the current layer will not be too far ahead to cause the risk of landslide. The specific calculation process of the protection method is as follows:
1)在斗轮水平中轴线0.1D以上、距斗轮0.5m的两侧各设置一组测距传感器,每组传感器数量至少为一个,多个传感器可同时对物料层进行监测;1) Set up a set of distance measuring sensors on both sides of the horizontal center axis of the bucket wheel above 0.1D and 0.5m away from the bucket wheel. The number of sensors in each set is at least one, and multiple sensors can monitor the material layer at the same time;
2)当两组传感器中的任何一组测距结果L小于0时,表示该传感器损坏;若两个传感器的测量结果都大于0时,以两个传感器测量结果的较小值为该测量结果;2) When the ranging result L of any one of the two sets of sensors is less than 0, it means that the sensor is damaged; if the measurement results of both sensors are greater than 0, the smaller value of the measurement results of the two sensors is the measurement result ;
3)根据物料的安息角设置3个报警距离值A1、A2、A3,且A1>A2>A3;并根据3个报警值设置相应的报警装置,优选的为指示灯,其中,3) Set three alarm distance values A 1 , A 2 , and A 3 according to the repose angle of the material, and A 1 >A 2 >A 3 ; and set corresponding alarm devices according to the three alarm values, preferably indicator lights, in,
当L>A1时,当前取料面处于安全位置,指示灯提醒本层取料作业可继续前进;When L>A 1 , the current reclaiming surface is in a safe position, and the indicator light reminds that the reclaiming operation of this layer can continue to move forward;
当A1<L<A2时,当前取料面位置已在最佳位置附近,指示灯提醒本层取料作业可停止;When A 1 <L<A 2 , the current pick-up surface position is near the optimum position, and the indicator light reminds that the pick-up operation of this layer can be stopped;
当A2<L<A3时,当前取料面位置已接近塌方危险区域,指示灯提醒本层取料作业应立即停止;When A 2 <L<A 3 , the current reclaiming surface is close to the landslide danger area, and the indicator light reminds the reclaiming operation of this layer to stop immediately;
当L<A3时,当前取料面位置已非常接近塌方危险区域,指示灯发出报警提醒;When L<A 3 , the current pick-up surface is very close to the landslide danger area, and the indicator light will send out an alarm;
4)控制器自动停止斗轮取料机臂架回转和俯仰运动,停止斗轮取料机前进走形运动4) The controller automatically stops the rotation and pitching movement of the arm frame of the bucket wheel reclaimer, and stops the forward movement of the bucket wheel reclaimer
5)本保护方法还设有屏蔽功能,当屏蔽功能开启时,本方法无法自动停止斗轮取料机臂架回转、俯仰运动,以及停止斗轮取料机前进走行功能,仅具有提示及报警功能。5) This protection method also has a shielding function. When the shielding function is turned on, this method cannot automatically stop the rotation and pitching movement of the arm frame of the bucket wheel reclaimer, and stop the forward movement of the bucket wheel reclaimer. It only has prompts and alarms Function.
采用本实用新型的防不当取料塌方的保护方法的保护装置,包括设置在斗轮101水平中轴线0.1D以上、距斗轮1m的两侧各设置一组测距传感器,每组距离传感器至少为一个,水平排列设置,也就是说,从臂架105皮带平移运动方向上看去,斗轮101左右两侧各安装一组测距传感器。测距传感器包括但不限于以下任一种:激光测距传感器、二维激光扫描仪、三维激光扫描仪、超声波距离传感器、雷达波距离传感器或声纳传感器。作为本实施例的优选实施方式,从斗轮左侧看去,斗轮101的两侧设有左侧距离传感器102L和右侧距离传感器102R。The protection device adopting the protection method of the protection method against improper material taking and landslide of the present utility model includes a group of ranging sensors arranged above the horizontal central axis of the bucket wheel 101 0.1D and 1m away from the bucket wheel, and each group of distance sensors is at least One set is arranged horizontally, that is to say, a group of ranging sensors are installed on the left and right sides of the bucket wheel 101 when viewed from the translational movement direction of the belt of the boom 105 . The ranging sensor includes, but is not limited to, any of the following: a laser ranging sensor, a two-dimensional laser scanner, a three-dimensional laser scanner, an ultrasonic distance sensor, a radar wave distance sensor, or a sonar sensor. As a preferred implementation of this embodiment, when viewed from the left side of the bucket wheel, a left distance sensor 102L and a right distance sensor 102R are provided on both sides of the bucket wheel 101 .
测距传感器获得的距离信息远程反馈至控制器103内。103内根据不同物料的安息角存储多组报警值A1、A2、A3,其中A3<L、A1>L且A1>A2>A3。相对应报警值A1、A2、A3,在司机操作台上设有多档位开关,根据物料选择不同的报警值,用于对比测距传感器的检测值L。控制器根据当前测得的L与报警设定值进行比较,从而判定当前应进行作业或提示,并通过指示灯提示司机进行对应的操作或自动控制进行停机保护。The distance information obtained by the distance measuring sensor is remotely fed back to the controller 103 . Multiple sets of alarm values A 1 , A 2 , A 3 are stored in 103 according to the angle of repose of different materials, where A 3 <L, A 1 >L and A 1 >A 2 >A 3 . Corresponding to the alarm values A 1 , A 2 , and A 3 , there are multi-position switches on the driver's console, and different alarm values can be selected according to the material to compare the detection value L of the distance measuring sensor. The controller compares the currently measured L with the alarm set value to determine that the current operation or reminder should be performed, and prompts the driver to perform the corresponding operation or automatically controls the shutdown protection through the indicator light.
本实施例中,司机操作台上还设有屏蔽按钮,可屏蔽自动控制停机保护动作,但不会停止指示灯提示和报警,便于司机操作台上的操作人员自由控制悬臂式斗轮取料机。In this embodiment, there is also a shielding button on the driver's console, which can shield the automatic control shutdown protection action, but will not stop the indicator light prompt and alarm, so that the operator on the driver's console can freely control the cantilever bucket wheel reclaimer .
测距传感器通过智能支架安装在斗轮取料机的臂架上。具体地,左侧距离传感器102L下端设有左距离传感器智能支架104L连接臂架105,右侧距离传感器102R下端设有右距离传感器智能支架104R连接臂架105。当斗轮取料机的臂架进行俯仰运动时,智能支架可保证测距传感器在竖直方向上与斗轮旋转轴线保持不变,且测距传感器的测量方向保持不变。智能支架可由(包括但不限于)机械结构、液压伺服系统、电气伺服系统或气压伺服系统中的任一方法实现。The distance measuring sensor is installed on the boom of the bucket wheel reclaimer through a smart bracket. Specifically, the left distance sensor smart bracket 104L is connected to the boom 105 at the lower end of the left distance sensor 102L, and the right distance sensor smart bracket 104R is connected to the boom 105 at the lower end of the right distance sensor 102R. When the arm frame of the bucket wheel reclaimer is pitching, the smart bracket can ensure that the distance measuring sensor remains unchanged in the vertical direction with the bucket wheel rotation axis, and the measuring direction of the distance measuring sensor remains unchanged. The smart support can be realized by (including but not limited to) any method in mechanical structure, hydraulic servo system, electrical servo system or pneumatic servo system.
测距传感器的种类和数量并不能作为对本实用新型的限制,能够起到测量料层距离的测距方法及设备均应认为纳入本申请的保护范围,不应以测距传感器的种类及数量作为对本申请的限制。The type and quantity of distance measuring sensors cannot be used as a limitation to the present utility model. The distance measuring method and equipment capable of measuring the distance of the material layer should be considered to be included in the scope of protection of this application, and the type and quantity of distance measuring sensors should not be used as a limit to the present invention. Limitations on this Application.
智能支架的种类和数量并不能作为对本实用新型的限制,能够起到支撑测距传感器用的设备均应认为纳入本申请的保护范围,不应以智能支架的种类及数量作为对本申请的限制。The type and quantity of smart brackets can not be used as a limitation of the present invention. The equipment capable of supporting distance measuring sensors should be considered to be included in the scope of protection of this application, and the type and quantity of smart brackets should not be used as restrictions on this application.
最后有必要在此说明的是:以上实施例只用于对本实用新型的技术方案作进一步详细地说明,不能理解为对本实用新型保护范围的限制,本领域的技术人员根据本实用新型的上述内容作出的一些非本质的改进和调整均属于本实用新型的保护范围。Finally, it is necessary to explain here that the above embodiments are only used to further describe the technical solutions of the utility model in detail, and cannot be interpreted as limiting the protection scope of the utility model. Some non-essential improvements and adjustments all belong to the protection scope of the present utility model.
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CN106608547A (en) * | 2016-10-26 | 2017-05-03 | 泰富重工制造有限公司 | Improper material taking collapse preventing protection method and device for cantilever type bucket wheel material taking machine |
CN111717678A (en) * | 2020-06-18 | 2020-09-29 | 大连华锐重工集团股份有限公司 | Method for preventing material collapse in material taking operation process |
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CN106608547A (en) * | 2016-10-26 | 2017-05-03 | 泰富重工制造有限公司 | Improper material taking collapse preventing protection method and device for cantilever type bucket wheel material taking machine |
CN111717678A (en) * | 2020-06-18 | 2020-09-29 | 大连华锐重工集团股份有限公司 | Method for preventing material collapse in material taking operation process |
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