WO2013053292A1 - 振动压路机 - Google Patents

振动压路机 Download PDF

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Publication number
WO2013053292A1
WO2013053292A1 PCT/CN2012/082088 CN2012082088W WO2013053292A1 WO 2013053292 A1 WO2013053292 A1 WO 2013053292A1 CN 2012082088 W CN2012082088 W CN 2012082088W WO 2013053292 A1 WO2013053292 A1 WO 2013053292A1
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WO
WIPO (PCT)
Prior art keywords
vibratory roller
vibration
static pressure
threshold range
operating parameters
Prior art date
Application number
PCT/CN2012/082088
Other languages
English (en)
French (fr)
Inventor
吴双生
裴辉
刘仕奇
陈翔
祝雪峰
Original Assignee
中联重科股份有限公司
湖南中联重科专用车有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中联重科股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 中联重科股份有限公司
Publication of WO2013053292A1 publication Critical patent/WO2013053292A1/zh

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/288Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements

Definitions

  • the present invention relates to a pavement construction apparatus, and in particular to a vibratory roller. Background technique
  • vibratory rollers are widely used in road construction. It relies on its own gravity and vibration to compact various building and road construction materials. In highway construction, vibratory rollers are most suitable for compacting various non-sticky soils, gravel, gravel mixes and various asphalt concretes. Among them, vibratory roller can be mainly divided into single drum vibratory roller and double drum vibratory roller.
  • the labor intensity of the operator is large, and it is difficult to ensure the consistency of the construction quality of the road surface. Because the driver's line of sight is limited, it is easy to have an accident. Vibratory rollers also have problems with the vibration wheel sinking in a certain area.
  • the vibration system of the vibratory roller hydraulic system is a high-power cooling fan configured to meet the total heat dissipation of the hydraulic system.
  • the hydraulic system includes a plurality of hydraulic working units, it is necessary to maintain the high-power cooling fan as long as one of the hydraulic working units operates. The operation causes energy waste, which is unfavorable to the energy saving of the whole machine. Summary of the invention
  • An object of the present invention is to provide a vibratory roller which can significantly reduce the labor intensity of an operator and ensure the compaction quality of the work surface.
  • a vibratory roller having an automatic operation mode, in which the controller controls the vibratory roller to complete the working surface with the set traveling speed, amplitude, vibration frequency, and operation sequence. Press the implementer.
  • the operation sequence is a static pressure, a large vibration, a small vibration and a secondary static pressure
  • the working parameters of the static pressure include: a running speed of 3-6 km/h ; and a working parameter of the large vibration Package
  • the driving speed is 3-5km/h
  • the amplitude is 0.8-2.4mm
  • the vibration frequency is 28-35Hz.
  • the operating parameters of the small vibration include: driving speed 4-6km/h, amplitude 0.35-1.3mm, vibration frequency 32-46Hz
  • the working parameters of the secondary static pressure include: driving speed 4-6km/h.
  • the operation sequence is a static pressure, a small vibration and a secondary static pressure
  • the working parameters of the static pressure include: a running speed of 3-6 km/h
  • the operating parameters of the small vibration include: driving The speed is 3-5km/h, the amplitude is 0.35-1.3mm, and the vibration frequency is 32-46Hz.
  • the operating parameters of the secondary static pressure include: the traveling speed is 4-6km/h.
  • the operation sequence is a static pressure, a large vibration and a secondary static pressure
  • the operation parameters of the static pressure include: a running speed of 3-6 km/h
  • the operating parameters of the large vibration include: driving The speed is 3-5km/h, the amplitude is 0.8-2.4mm, and the vibration frequency is 28-35Hz.
  • the operating parameters of the secondary static pressure include: the traveling speed is 4-6km/h.
  • the vibratory roller includes an anti-sag mode in which the controller controls the vibratory roller to stop vibrating when the vehicle speed is less than the first threshold range.
  • the first threshold ranges from 1.5 to 2.5 km/h.
  • the vibratory roller includes an anti-rollover mode in which a distance detecting device mounted on a side of the vibratory roller detects a distance between the distance detecting device and a side surface of the vibratory roller, when the distance exceeds the In the second threshold range, the controller controls the vibratory roller to stop vibrating.
  • the distance detecting device is an ultrasonic radar that detects a vertical distance between the ultrasonic radar and the ground on the side of the vibratory roller.
  • the vibratory roller includes an energy saving mode in which the controller controls the vibration system cooling fan to be turned on when the vibration operation is started, and the controller controls the vibration system cooling fan to stop when the vibration operation is stopped.
  • the controller controls the vibration system cooling fan to be turned on, and when the temperature of the hydraulic oil is lower than or equal to the third threshold range, the controller controls The vibration system cooling fan stops.
  • the third threshold ranges from 55 to 65 °C.
  • the controller controls the engine cooling fan to stop when the engine water temperature is lower than or equal to the fourth threshold range, and the controller controls the engine cooling fan to turn on when the engine water temperature is above the fourth threshold range.
  • the controller controls the engine cooling fan to increase in speed as the water temperature increases.
  • the fourth threshold ranges from 70 to 80 °C.
  • the vibratory roller is a single drum vibratory roller or a double drum vibratory roller.
  • the vibratory roller according to the present invention has an automatic operation mode.
  • the controller controls the vibratory roller to complete the pressing of the working surface with the set traveling speed, amplitude, vibration frequency and operation sequence, thereby greatly reducing the labor intensity of the operator, and adopting standardization Work, so it can guarantee the construction quality of the road.
  • the present invention mainly provides an intelligent vibratory roller which has at least an automatic working mode for realizing an automatic compacting operation on a working surface.
  • the vibratory roller may also have an anti-sag mode, an anti-tip mode, and an energy saving mode. These modes may be selectively disposed in the vibratory roller of the present invention, or may be entirely disposed in the vibratory roller of the present invention.
  • the vibratory roller of the present invention in order to realize an automatic operation, various functions are usually realized by a controller.
  • the controller needs to have different functions for different purposes, but the specific implementation form can be determined according to different needs. In other words, it can be in the vibration pressure circuit
  • An onboard computer is arranged on the machine, and the onboard computer is provided with a plurality of control modules to realize their respective functions. Alternatively, different control units may be configured for different functions.
  • the vibratory roller according to the present invention has an automatic operation mode.
  • the controller controls the vibratory roller to complete the pressing of the working surface with the set traveling speed, amplitude, vibration frequency and operation sequence, thereby greatly reducing the labor intensity of the operator, and adopting standardization Work, so it can guarantee the construction quality of the road.
  • the working surface can be pressed in different working sequences.
  • the operation sequence may be a static pressure, a large vibration, a small vibration, and a secondary static pressure, wherein: the operating parameters of the static pressure include: a running speed of 3-6 km/h.
  • the operating parameters of the large vibration include: driving speed 3-5km/h, amplitude 0.8-2.4mm, vibration frequency
  • the operating parameters of the small vibration include: driving speed 4-6km/h, amplitude 0.35-1.3mm, vibration frequency 32-46Hz; operating parameters of the secondary static pressure include: driving speed 4-6km/ h.
  • the operation sequence may be a static pressure, a small vibration, and a secondary static pressure
  • the operating parameters of the primary static pressure include: a running speed of 3-6 km/h
  • the operating parameters of the vibration include: driving speed 3-5km/h, amplitude 0.35-1.3mm, vibration frequency 32-46Hz
  • operating parameters of the secondary static pressure include: driving speed 4-6km/h.
  • the operation sequence may be a static pressure, a large vibration, and a secondary static pressure
  • the operating parameters of the static pressure include: a running speed of 3-6 km/h
  • the operating parameters of the vibration include: driving speed 3-5km/h, amplitude 0.8-2.4mm, vibration frequency 28-35Hz
  • operating parameters of the secondary static pressure include: driving speed 4-6km/h. That is to say, for different working surfaces and construction specifications, the working sequence may be a combination of static pressure and small vibration, a combination of static pressure and large vibration, or a combination of static pressure, large vibration and small vibration.
  • the work surface can be operated once or twice or more.
  • a roadbed filling compaction project firstly presses the working surface twice with a static pressure, and the driving speed is 4km/h; then the large vibration is compacted 3 times, the vibration frequency is 28Hz, and the amplitude is 2mm.
  • the driving speed is 3km/h; it is compacted twice with a small vibration, the vibration frequency is 32Hz, the amplitude is 0.9mm, and the driving speed is 4km/h.
  • the vibration wheel of the vibratory roller is mainly caused by the vibrating wheel staying in a certain area for a long time and continuously vibrating. Accordingly, the present invention provides a vibratory roller preferably having an anti-sag mode in which the controller controls the vibratory roller to stop vibrating when the vehicle speed is less than the first threshold range.
  • the vibratory roller determines whether to continue the vibration according to the comparison result between the current traveling speed and the first threshold range during operation, when the traveling speed of the vibratory roller is less than the first threshold range, the vibrating wheel stays at If the time in a certain area is too long, the vibration of the vibrating wheel is stopped to avoid the vibration wheel sinking due to vibration in the area for a long time.
  • the first threshold range according to the present invention may be determined according to different working surfaces. In the present invention, after a large number of experiments, preferably, the first threshold range may be determined according to different working surfaces. In the present invention, after a large number of experiments, preferably, the first threshold range may be
  • 1.5-2.5km/h this range can be applied to most working surfaces (ie pavement), such as non-cohesive soil Soil, gravel, gravel mix and various asphalt concrete pavements.
  • a set threshold can be selected from 1.5-2.5 km/h for one work surface.
  • the threshold range is not an absolute value, and the threshold range may be changed according to the actual road surface condition, and such a change should fall within the protection scope of the present invention as long as the object of the present invention is satisfied.
  • the vibratory roller of the present invention may include a sensor for detecting the vehicle speed in real time, and compares the value of the vehicle speed detected by the sensor with the set threshold by the controller, and the value of the vehicle speed is less than or equal to the value for safety.
  • the threshold is set, the vibration of the vibrating wheel is stopped. That is, in addition to stopping the vibration of the vibrating wheel in the case where the vehicle speed is less than the set threshold, when the value of the vehicle speed is equal to the threshold, the vibration of the vibrating wheel is stopped.
  • the vibrating wheel is driven by a hydraulic pump and a hydraulic motor, and stopping the vibration of the vibrating wheel includes stopping the hydraulic pump. That is, for the convenience of operation, it is necessary to equip the vibrating hydraulic motor of the vibrating wheel with a special vibrating hydraulic pump. When it is necessary to stop the vibration of the vibrating wheel, the vibrating hydraulic pump is directly closed, and then the vibrating hydraulic motor loses power, and the vibration of the vibrating wheel is conveniently stopped.
  • the vibratory roller provided by the present invention preferably has an anti-tip mode in which the distance detecting device mounted on the side of the vibratory roller detects the distance between the distance detecting device and the ground on the side of the vibratory roller, when the distance exceeds the second threshold range When the controller controls the vibratory roller to stop the vibration.
  • the distance detecting device can transmit the detected distance to the control in real time.
  • the controller compares the distance with the second threshold range. When the distance exceeds the second threshold range, the controller controls the vibrating wheel of the vibratory roller to stop vibrating, thereby preventing the vibrating wheel from continuously vibrating and pressing the edge of the road surface.
  • the tipping accident increases the safety of the vibratory roller provided by the present invention.
  • the detected distance exceeds the second threshold range, it is usually encountered a downward depression such as a ditch near the edge of the road surface. If the vibration wheel does not stop vibrating, the edge of the road surface will be The pressure is crushed, which causes the roller to roll over.
  • the "ground surface on the side of the vibratory roller" referred to herein when the vibratory roller is in normal operation, the floor indicates the working surface for the compaction operation, and when the vibratory roller travels to the edge of the working surface, The ground surface indicates the ground surface of other parts than the edge of the work surface, such as the bottom of the ditch, the bottom of the cliff (the actual measured distance will be large), and so on.
  • the distance detecting device is an ultrasonic radar, which is a common component in the art and is convenient to use.
  • other distance detecting means such as an infrared ray, a laser or the like can be used, and the present invention is not limited as long as the object of the present invention is satisfied.
  • the ultrasonic radar is used to detect the vertical distance between it and the ground on the side of the vibratory roller.
  • the road surface condition is judged so that the controller makes a correct judgment.
  • the ultrasonic radar protrudes outward from the outer edge of the vibrating wheel of the vibratory roller. Vertical face. That is, the ultrasonic radar detects the edge of the road surface before the vibrating wheel of the vibratory roller, and the object of the present invention is more safely achieved.
  • the distance from the ultrasonic wave to the vertical surface of the vibrating wheel of the vibratory roller is preferably 10-30 cm.
  • the ultrasonic radar protrudes forward or backward from the vertical plane of the axis of the vibratory wheel of the vibratory roller.
  • the ultrasonic radar is prior to the vibration wheel.
  • the contact portion with the ground detects the edge of the road surface, and the object of the present invention is more safely achieved.
  • the ultrasonic radar protrudes forward or backward from the vertical plane of the axis of the vibrating wheel of the vibratory roller by a distance of 10-30 cm.
  • each side of the vibratory roller includes two ultrasonic radars, one of which protrudes forward from the vertical plane of the axis of the vibratory wheel of the vibratory roller, and the other ultrasonic radar protrudes rearwardly from the vibratory roller The vertical plane where the axis of the vibrating wheel is located.
  • the vibratory roller provided by the present invention can cope with the conditions of forward compaction or reverse compaction.
  • an ultrasonic radar protrudes forward from the vertical plane of the axis of the vibrating wheel of the vibratory roller by a distance of 10-30 cm, and the other ultrasonic radar protrudes backward from the vibrating wheel of the vibratory roller.
  • the distance from the vertical plane where the axis is located is 10-30 cm.
  • the second threshold range according to the present invention is preferably 80% - 120% of the vertical distance between the distance detecting means and the lowest point of the vibrating wheel of the vibratory roller. That is, when the vertical distance detected by the distance detecting means exceeds the range, it is considered to exceed the second threshold range.
  • the vibratory roller may further include an alarm.
  • the controller may control the alarm alarm, that is, when the controller controls the vibration wheel to stop vibrating, the driver is simultaneously reminded to the driver.
  • the traveling direction correction of the vibratory roller is performed, and when the detected distance returns to the second threshold range, the vibration operation of the corresponding vibrating wheel is resumed by the driver or the controller.
  • the vibratory roller provided by the present invention preferably has an energy saving mode, and the use of this mode can improve the energy saving and consumption reduction of the entire vibratory roller.
  • Vibration cooling systems typically include a hydraulic oil radiator, a cooling fan, and a tubing. Vibration operation After the movement, the hydraulic oil pushes the hydraulic motor to work and the temperature rises, and then passes through the hydraulic oil radiator to return to the fuel tank.
  • the controller controls the vibration system cooling fan to be turned on when the vibration operation is started, and the controller controls the vibration system cooling fan to stop when the vibration operation is stopped.
  • the controller controls the vibration system cooling fan to be turned on, and when the temperature of the hydraulic oil is lower than or equal to the third threshold range, the controller controls the vibration.
  • the system cooling fan stops.
  • the third threshold range is preferably 55-65 V, more preferably 60 °C.
  • the controller controls the engine cooling fan to stop when the engine water temperature is below or equal to the fourth threshold range, and the controller controls the engine cooling fan to turn on when the engine water temperature is above the fourth threshold range.
  • the controller controls the engine cooling fan to increase in speed as the water temperature increases.
  • the fourth threshold range is preferably from 70 to 80 ° C, more preferably 75 ° C.

Abstract

一种振动压路机,具有自动作业模式,在该自动作业模式下,控制器控制振动压路机以设定的行驶速度、振幅、振动频率和作业顺序完成对作业面的压实施工。该振动压路机可以降低操作人员的劳动强度,通过采用标准化作业保证了作业面的压实质量。

Description

振动压路机
技术领域
本发明涉及路面施工设备, 具体地, 涉及一种振动压路机。 背景技术
当前, 振动压路机广泛地应用在道路施工中。 其主要依靠自身的重力 和振动压实各种建筑和筑路材料。 在公路建设中, 振动压路机最适宜压实 各种非粘性土壤、 碎石、 碎石混合料以及各种沥青混凝土, 因而被广泛应 用。 其中, 振动压路机主要可分为单钢轮振动压路机和双钢轮振动压路机。 然而, 在实际施工中, 虽然有施工规范要求, 但由于需要频繁的更换行驶 速度、 振幅和振动频率, 操作人员的劳动强度大, 难以保证路面施工质量 的一致性。 由于驾驶员的视线受限, 很容易发生事故。 振动压路机在某个 区域还会出现振动轮沉陷的问题。 目前振动压路机液压系统散热是配置能 够满足液压系统总散热量散热的大功率冷却风扇, 然而由于液压系统包括 多个液压工作单元, 只要有其中一个液压工作单元工作, 都需要维持该大 功率散热风扇的运转, 从而造成能源的浪费, 对整机节能不利。 发明内容
本发明的目的是提供一种振动压路机, 其能够显著降低操作人员的劳 动强度且保证作业面的压实质量。
为了实现上述目的, 提供一种振动压路机, 该振动压路机具有自动作 业模式, 在该自动作业模式下, 控制器控制振动压路机以设定的行驶速度、 振幅、 振动频率和作业顺序完成对作业面的压实施工。
优选地, 所述作业顺序为一次静压、 大振、 小振和二次静压, 其中: 所述一次静压的作业参数包括: 行驶速度 3-6km/h; 所述大振的作业参数包 括: 行驶速度 3-5km/h、 振幅 0.8-2.4mm、 振动频率 28-35Hz; 所述小振的 作业参数包括: 行驶速度 4-6km/h、 振幅 0.35-1.3mm、 振动频率 32-46Hz; 所述二次静压的作业参数包括: 行驶速度 4-6km/h。
优选地, 所述作业顺序为一次静压、 小振和二次静压, 其中: 所述一 次静压的作业参数包括: 行驶速度 3-6km/h; 所述小振的作业参数包括: 行 驶速度 3-5km/h、 振幅 0.35-1.3mm、 振动频率 32-46Hz; 所述二次静压的作 业参数包括: 行驶速度 4-6km/h。
优选地, 所述作业顺序为一次静压、 大振和二次静压, 其中: 所述一 次静压的作业参数包括: 行驶速度 3-6km/h; 所述大振的作业参数包括: 行 驶速度 3-5km/h、 振幅 0.8-2.4mm、 振动频率 28-35Hz; 所述二次静压的作 业参数包括: 行驶速度 4-6km/h。
优选地, 该振动压路机包括防沉陷模式, 在该防沉陷模式下, 当车速 小于第一阈值范围时, 控制器控制振动压路机停止振动。
优选地, 所述第一阈值范围为 1.5-2.5km/h。
优选地, 该振动压路机包括防倾翻模式, 在该防倾翻模式下, 安装在 振动压路机侧面的距离检测装置检测该距离检测装置与振动压路机侧面地 面之间的距离, 当所述距离超出第二阈值范围时, 控制器控制振动压路机 停止振动。
优选地, 所述距离检测装置为超声波雷达, 该超声波雷达检测该超声 波雷达与振动压路机侧面的地面之间的垂直距离。
优选地, 该振动压路机包括节能模式, 在该节能模式下, 在启动振动 作业时, 控制器控制振动系统冷却风扇开启, 在停止振动作业时, 控制器 控制振动系统冷却风扇停止。
优选地, 在所述节能模式下, 在液压油的温度高于第三阈值范围时, 控制器控制振动系统冷却风扇开启, 在液压油的温度低于或等于第三阈值 范围时, 控制器控制振动系统冷却风扇停止。 优选地, 所述第三阈值范围为 55-65 °C。
优选地, 在发动机水温低于或等于第四阈值范围时, 控制器控制发动 机冷却风扇停止, 在发动机水温高于第四阈值范围时, 控制器控制发动机 冷却风扇开启。
优选地, 在发动机水温高于第四阈值范围时, 控制器控制发动机冷却 风扇的转速随水温升高而升高。
优选地, 所述第四阈值范围为 70-80°C。
优选地, 所述振动压路机为单钢轮振动压路机或者双钢轮振动压路机。 根据本发明的振动压路机具有自动作业模式。 在该自动作业模式下, 控制器控制振动压路机以设定的行驶速度、 振幅、 振动频率和作业顺序完 成对作业面的压实施工, 从而可以大大降低操作人员的劳动强度, 并且由 于采用了标准化作业, 所以还能保证路面的施工质量。
本发明的其他特征和优点将在随后的具体实施方式部分予以详细说 明。 具体实施方式
本发明主要提供一种智能化的振动压路机, 其至少具备自动作业模式, 以实现对作业面的自动压实作业。 另外, 该振动压路机还可以具备防沉陷 模式、 防倾翻模式和节能模式。 这些模式可以选择性地配置到本发明的振 动压路机中, 也可以全部配置到本发明的振动压路机中。
另外需要说明的是, 在本发明的振动压路机中, 为了实现自动化的操 作, 通常都是通过控制器来实现各种功能。 例如, 在自动作业模式下, 需 要使用控制器实现自动作业。 在防沉陷模式下, 在满足判断条件时, 需要 通过控制器控制振动压路机停止振动。 对于防倾翻模式亦是如此。 因此, 在本发明的振动压路机中, 控制器针对不同的目的需要具备不同的功能, 但其具体的实现形式可以根据不同的需要而定。 换言之, 可以在振动压路 机上配置一台车载电脑, 该车载电脑中配置有多个控制模块, 以分别实现 各自的功能。 或者, 针对不同的功能, 亦可以配置不同的控制单元, 这些 变化方式对于本领域普通技术人员来说都是很容易理解和实现的, 均应当 落入到本发明的保护范围之内。
为了更清楚地阐述本发明, 下面将对各种模式进行详细说明。
[自动作业模式]
根据本发明的振动压路机具有自动作业模式。 在该自动作业模式下, 控制器控制振动压路机以设定的行驶速度、 振幅、 振动频率和作业顺序完 成对作业面的压实施工, 从而可以大大降低操作人员的劳动强度, 并且由 于采用了标准化作业, 所以还能保证路面的施工质量。
根据不同的施工规范要求, 可以采用不同的作业顺序对作业面进行压 实施工。
例如, 作为一种典型的实施例, 所述作业顺序可以是一次静压、 大振、 小振和二次静压,其中:所述一次静压的作业参数包括:行驶速度 3-6km/h; 所述大振的作业参数包括: 行驶速度 3-5km/h、 振幅 0.8-2.4mm、 振动频率
28-35Hz; 所述小振的作业参数包括: 行驶速度 4-6km/h、 振幅 0.35-1.3mm、 振动频率 32-46Hz; 所述二次静压的作业参数包括: 行驶速度 4-6km/h。
作为另一种典型的实施例, 所述作业顺序可以是一次静压、 小振和二 次静压, 其中: 所述一次静压的作业参数包括: 行驶速度 3-6km/h; 所述小 振的作业参数包括:行驶速度 3-5km/h、振幅 0.35-1.3mm、振动频率 32-46Hz; 所述二次静压的作业参数包括: 行驶速度 4-6km/h。
作为再一种典型的实施例, 所述作业顺序可以是一次静压、 大振和二 次静压, 其中: 所述一次静压的作业参数包括: 行驶速度 3-6km/h; 所述大 振的作业参数包括:行驶速度 3-5km/h、振幅 0.8-2.4mm、振动频率 28-35Hz; 所述二次静压的作业参数包括: 行驶速度 4-6km/h。 也就是说, 针对不同的作业面和施工规范, 作业顺序可以是静压和小 振的组合, 静压和大振的组合, 也可以是静压、 大振和小振的组合。 另外 需要说明的是, 在上述三种典型的作业顺序中, 无论是一次静压、 大振、 小振, 还是二次静压, 在作业面上可以一遍作业, 也可以是二遍或者更多 遍作业。 例如, 某路基填方压实工程, 根据施工规范要求, 先采用一次静 压对作业面压实 2遍, 行驶速度为 4km/h; 然后大振压实 3遍, 振动频率 28Hz, 振幅 2mm, 行驶速度 3km/h; 再用小振压实 2遍, 振动频率 32Hz, 振幅 0.9mm, 行驶速度 4km/h。
使用自动作业模式时, 首先开启具备控制器功能的车载电脑, 由操作 人员输入上述参数, 例如作业顺序以及行驶速度、 振动频率、 振幅等。 然 后启动振动压路机, 开启自动作业模式, 振动压路机就会按事先输入的参 数自动完成压实作业。 作业过程中驾驶员只需控制压路机的前进后退即可, 从而大大降低了操作人员的劳动强度, 提高了作业面的施工质量。 [防沉陷模式]
根据研究发现, 振动压路机的振动轮沉陷主要是由于该振动轮长时间 停留在某个区域内, 并且不断振动而造成的。 因此, 本发明提供振动压路 机优选具有防沉陷模式, 在此模式下, 当车速小于第一阈值范围时, 控制 器控制振动压路机停止振动。
在上述技术方案中, 由于振动压路机在作业时会根据当前的行驶速度 和第一阈值范围的比较结果判断是否继续振动, 当振动压路机的行驶速度 小于第一阈值范围时, 即该振动轮停留在某个区域内的时间过长, 则停止 该振动轮的振动, 以避免由于长时间在该区域的振动而造成振动轮沉陷。
需要说明的是, 本发明所涉及的第一阈值范围可以根据不同的作业面 情况而定。 在本发明中, 经过大量实验后, 优选地, 第一阈值范围可以为
1.5-2.5km/h, 该范围能够应用于大部分作业面(即路面)情况, 如非粘性土 壤、 碎石、 碎石混合料以及各种沥青混凝土的路面。 另外, 本领域技术人 员能够理解的是, 在实际作业中, 针对一个作业面可以从 1.5-2.5km/h中选 择一个设定的阈值。 另外, 该阈值范围也并不是绝对值, 根据实际路面情 况可以对该阈值范围进行改变, 只要满足本发明的目的, 此类改变也应落 在本发明的保护范围之内。
更具体地, 本发明的振动压路机可以包括用于实时检测车速的传感器, 并通过控制器将由传感器检测的车速的值与设定的阈值进行比较, 为了更 加安全, 在车速的值小于或等于该设定的阈值时, 停止振动轮的振动。 即 除了车速小于设定阈值的情况停止振动轮的振动外, 当车速的值等于阈值 时, 即停止振动轮的振动。
为了方便操作, 优选地, 振动轮由液压泵和液压马达驱动, 停止振动 轮的振动包括使该液压泵停止工作。 即为了方便操作, 需要为振动轮的振 动液压马达配备专门的振动液压泵。 当需要停止振动轮的振动时, 直接关 闭该振动液压泵, 继而使振动液压马达失去动力, 方便地停止该振动轮的 振动。
[防倾翻模式]
本发明提供的振动压路机优选具有防倾翻模式, 在此模式下, 安装在 振动压路机侧面的距离检测装置检测该距离检测装置与振动压路机侧面的 地面之间的距离, 当距离超出第二阈值范围时, 控制器控制振动压路机停 止振动。
在上述技术方案中, 通过在振动压路机的侧面安装距离检测装置, 用 于检测该距离检测装置与振动压路机侧面的地面之间的距离, 该距离检测 装置能够实时将其检测到的距离传输给控制器, 由控制器将该距离和第二 阈值范围进行比较, 当该距离超出第二阈值范围时, 控制器控制振动压路 机的振动轮停止振动, 从而避免了振动轮不断振动而压垮路面边缘所造成 的倾翻事故, 从而提高了本发明提供的振动压路机的安全性。
需要说明的是, 当检测的距离超出第二阈值范围时, 通常是遇到路面 边缘旁是例如沟渠等向下凹陷部, 遇到这种情况若振动轮没有停止振动, 将会造成路面边缘被压垮, 从而造成压路机侧翻的事故。 另外需要说明的 是, 此处所指的 "振动压路机侧面的地面", 在振动压路机正常作业时, 该 地面即表示进行压实作业的作业面, 而当振动压路机行驶到作业面边缘时, 所述地面则表示作业面边缘之外的其他部分的地表面, 例如沟渠的底部、 悬崖的底部 (实际测得的距离会很大) 等等。
下述将以本发明的优选实施方式说明本发明, 但是该优选实施方式并 不用于限制本发明。
在优选实施方式中, 优选地, 距离检测装置为超声波雷达, 该超声波 雷达为本领域内常见部件, 使用方便。 当然也可以采用其他的距离检测装 置例如红外线、 激光等检测装置, 只要满足本发明的目的, 本发明对此不 做限制。
在本发明的技术方案中, 为了更准确地获取距离检测装置与振动压路 机侧面的地面之间的实际距离, 优选地, 超声波雷达用于检测其与振动压 路机侧面的地面之间的垂直距离。 通过将该垂直距离的变化传输至控制器 中, 判断路面情况, 以便控制器作出正确的判断。
另外, 为了在振动压路机行驶到路面边缘之前就知道路面的变化, 而 造成提前的处理并及时关停振动轮的振动, 优选地, 超声波雷达向外凸出 于振动压路机的振动轮的外边缘所在的垂直面。 即该超声波雷达先于振动 压路机的振动轮检测到路面边缘, 更加安全地实现了本发明的目的。 其中, 优选地, 超声波雷达向外凸出于振动压路机的振动轮的外边缘所在的垂直 面的距离优选为 10-30cm。
另外, 优选地, 超声波雷达向前或向后凸出于振动压路机的振动轮的 轴线所在的垂直面。 通过这样设置超声波雷达, 使超声波雷达先于振动轮 与地面的接触部分检测到路面边缘, 更加安全地了实现本发明的目的。 其 中, 优选地, 超声波雷达向前或向后凸出于振动压路机的振动轮的轴线所 在的垂直面的距离为 10-30cm。
更加优选地是, 振动压路机的每一侧包括两个超声波雷达, 其中一个 超声波雷达向前凸出于振动压路机的振动轮的轴线所在的垂直面, 另一个 超声波雷达向后凸出于振动压路机的振动轮的轴线所在的垂直面。 以使本 发明提供的振动压路机能够应对前进压实或者倒退压实的工况。
其中, 作为一种优选实施方式, 一个超声波雷达向前凸出于振动压路 机的振动轮的轴线所在的垂直面的距离为 10-30cm,另一个超声波雷达向后 凸出于振动压路机的振动轮的轴线所在的垂直面的距离为 10-30cm。
在上述的技术方案中, 为了实现超声波雷达的凸出, 可以有通过为其 设置合适的支架来实现, 这种技术为本领域技术人员所公知, 在此不做过 另外, 根据实验和经验, 本发明所涉及的第二阈值范围优选为距离检 测装置与振动压路机的振动轮的最低点之间的垂直距离的 80%-120%。即当 距离检测装置检测到的垂直距离超出该范围, 即视为超出第二阈值范围。
作为应对, 优选地, 振动压路机还可以包括报警器, 当距离超出第二 阈值范围时, 控制器可以控制报警器报警, 即在控制器控制振动轮停止振 动时, 同时提醒驾驶员, 以便驾驶员进行振动压路机的行驶方向修正, 当 检测的距离回到第二阈值范围时, 由驾驶员或控制器恢复相应的振动轮的 振动作业。
[节能模式]
本发明提供的振动压路机优选具有节能模式, 利用这种模式, 可以提 高整个振动压路机节能降耗的目的。
振动冷却系统通常包括液压油散热器、 冷却风扇和油管。 振动作业启 动后, 液压油推动液压马达做功后温度升高, 再经过液压油散热器回油箱。 对于振动系统, 优选地, 在节能模式下, 在启动振动作业时, 控制器 控制振动系统冷却风扇开启, 在停止振动作业时, 控制器控制振动系统冷 却风扇停止。
另外, 在所述节能模式下, 在液压油的温度高于第三阈值范围时, 控 制器控制振动系统冷却风扇开启, 在液压油的温度低于或等于第三阈值范 围时, 控制器控制振动系统冷却风扇停止。所述第三阈值范围优选为 55-65 V, 更优选为 60°C。
另外, 在发动机水温低于或等于第四阈值范围时, 控制器控制发动机 冷却风扇停止, 在发动机水温高于第四阈值范围时, 控制器控制发动机冷 却风扇开启。 在发动机水温高于第四阈值范围时, 控制器控制发动机冷却 风扇的转速随水温升高而升高。所述第四阈值范围优选为 70-80°C, 更优选 为 75°C。
本发明的上述各种模式可以应用于单钢轮振动压路机或者双钢轮振动 压路机, 具有较强的实用性和推广价值。
以上详细描述了本发明的优选实施方式, 但是, 本发明并不限于上述 实施方式中的具体细节, 在本发明的技术构思范围内, 可以对本发明的技 术方案进行多种简单变型, 这些简单变型均属于本发明的保护范围。 另外, 在上述具体实施方式中所描述的各个具体技术特征, 在不矛盾的情况下, 可以通过任何合适的方式进行组合。 此外, 本发明的各种不同的实施方式 之间也可以进行任意组合, 只要其不违背本发明的思想, 其同样应当视为 本发明所公开的内容。

Claims

权利要求
1、 一种振动压路机, 其特征在于, 该振动压路机具有自动作业模式, 在该自动作业模式下, 控制器控制振动压路机以设定的行驶速度、 振幅、 振动频率和作业顺序完成对作业面的压实施工。
2、 根据权利要求 1所述的振动压路机, 其特征在于, 所述作业顺序为 一次静压、 大振、 小振和二次静压, 其中:
所述一次静压的作业参数包括: 行驶速度 3-6km/h;
所述大振的作业参数包括: 行驶速度 3-5km/h、 振幅 0.8-2.4mm、 振动 频率 28-35HZ;
所述小振的作业参数包括: 行驶速度 4-6km/h、振幅 0.35-1.3mm、振动 频率 32-46Hz;
所述二次静压的作业参数包括: 行驶速度 4-6km/h。
3、 根据权利要求 1所述的振动压路机, 其特征在于, 所述作业顺序为 一次静压、 小振和二次静压, 其中:
所述一次静压的作业参数包括: 行驶速度 3-6km/h;
所述小振的作业参数包括: 行驶速度 3-5km/h、振幅 0.35-1.3mm、振动 频率 32-46HZ;
所述二次静压的作业参数包括: 行驶速度 4-6km/h。
4、 根据权利要求 1所述的振动压路机, 其特征在于, 所述作业顺序为 一次静压、 大振和二次静压, 其中:
所述一次静压的作业参数包括: 行驶速度 3-6km/h;
所述大振的作业参数包括: 行驶速度 3-5km/h、 振幅 0.8-2.4mm、 振动 频率 28-35HZ;
所述二次静压的作业参数包括: 行驶速度 4-6km/h。
5、 根据权利要求 1所述的振动压路机, 其特征在于, 该振动压路机包 括防沉陷模式, 在该防沉陷模式下, 当车速小于第一阈值范围时, 控制器 控制振动压路机停止振动。
6、 根据权利要求 5所述的振动压路机, 其特征在于, 所述第一阈值范 围为 1.5-2.5km/h。
7、 根据权利要求 1所述的振动压路机, 其特征在于, 该振动压路机包 括防倾翻模式, 在该防倾翻模式下, 安装在振动压路机侧面的距离检测装 置检测该距离检测装置与振动压路机侧面的地面之间的距离, 当所述距离 超出第二阈值范围时, 控制器控制振动压路机停止振动。
8、 根据权利要求 7所述的振动压路机, 其特征在于, 所述距离检测装 置为超声波雷达, 该超声波雷达检测该超声波雷达与振动压路机侧面的地 面之间的垂直距离。
9、 根据权利要求 8所述的振动压路机, 其特征在于, 所述超声波雷达 向外凸出于振动压路机的振动轮的外边缘所在的平面, 且向外突出的距离 为 10-30厘米。
10、 根据权利要求 1所述的振动压路机, 其特征在于, 该振动压路机 包括节能模式, 在该节能模式下, 在启动振动作业时, 控制器控制振动系 统冷却风扇开启, 在停止振动作业时, 控制器控制振动系统冷却风扇停止。
11、 根据权利要求 10所述的振动压路机, 其特征在于, 在所述节能模 式下, 在液压油的温度高于第三阈值范围时, 控制器控制振动系统冷却风 扇开启, 在液压油的温度低于或等于第三阈值范围时, 控制器控制振动系 统冷却风扇停止。
12、 根据权利要求 10所述的振动压路机, 其特征在于, 所述第三阈值 范围为 55-65 °C o
13、 根据权利要求 10所述的振动压路机, 其特征在于, 在发动机水温 低于或等于第四阈值范围时, 控制器控制发动机冷却风扇停止, 在发动机 水温高于第四阈值范围时, 控制器控制发动机冷却风扇开启。
14、 根据权利要求 13所述的振动压路机, 其特征在于, 在发动机水温 高于第四阈值范围时, 控制器控制发动机冷却风扇的转速随水温升高而升 高。
15、 根据权利要求 13所述的振动压路机, 其特征在于, 所述第四阈值 范围为 70-80 °C。
16、 根据权利要求 1 所述的振动压路机, 其特征在于, 所述振动压路 机为单钢轮振动压路机或者双钢轮振动压路机。
PCT/CN2012/082088 2011-10-11 2012-09-26 振动压路机 WO2013053292A1 (zh)

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CN102359053A (zh) * 2011-10-11 2012-02-22 中联重科股份有限公司 振动压路机
CN103321128B (zh) * 2013-07-03 2015-06-03 中联重科股份有限公司 防止振动压路机的振动轮沉陷的方法、系统以及工程机械
CN111911277A (zh) * 2020-08-25 2020-11-10 三一汽车制造有限公司 硅油风扇控制装置、方法和压路机
CN112982093A (zh) * 2021-02-08 2021-06-18 徐工集团工程机械股份有限公司道路机械分公司 一种基层、路基材料压实方法和单钢轮振动压路机
CN113550204B (zh) * 2021-06-15 2022-06-07 湖南三一华源机械有限公司 压路机压实控制方法、压路机压实系统及压路机

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