EP4230803A1 - Excavator and control method for excavator - Google Patents
Excavator and control method for excavator Download PDFInfo
- Publication number
- EP4230803A1 EP4230803A1 EP21881606.4A EP21881606A EP4230803A1 EP 4230803 A1 EP4230803 A1 EP 4230803A1 EP 21881606 A EP21881606 A EP 21881606A EP 4230803 A1 EP4230803 A1 EP 4230803A1
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- European Patent Office
- Prior art keywords
- bucket
- cylinder
- controller
- excavator
- preset
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008602 contraction Effects 0.000 claims abstract description 44
- 230000009471 action Effects 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 238000010586 diagram Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 238000009412 basement excavation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
- E02F3/436—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like for keeping the dipper in the horizontal position, e.g. self-levelling
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/425—Drive systems for dipper-arms, backhoes or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
- E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/264—Sensors and their calibration for indicating the position of the work tool
- E02F9/265—Sensors and their calibration for indicating the position of the work tool with follow-up actions (e.g. control signals sent to actuate the work tool)
Definitions
- the present application relates to the technical field of bucket control, in particular to an excavator and a method for controlling excavator.
- a working device of an excavator is usually composed of three main action parts: a luffing jib, a bucket rod and a bucket.
- a luffing jib When an angle of the bucket needs to be adjusted, it is usually need to control and coordinate movements of the luffing jib, the bucket rod and the bucket at a same time.
- some excavation objects are easily lost objects such as muddy water
- the angle of the bucket is slightly inaccuracy, it may cause a certain amount of materials loss and affect excavation efficiency.
- An objective of the present application is to provide an excavator and a method for controlling excavator.
- Embodiments of the present application can be implemented as follows.
- inventions of the present application provide an excavator.
- the excavator includes an excavator body, a power device, a bucket and a bucket cylinder.
- An end of the power device is connected to the excavator body, and another end of the power device is hinged with the bucket to drive the bucket to move.
- An end of the bucket cylinder is connected to the power device, and another end of the bucket cylinder is drivably connected to the bucket to drive the bucket to rotate relative to the power device.
- the excavator further includes: a detection device and a controller; where the detection device is used for detecting movement data of the bucket or for detecting movement data of the power device and the bucket cylinder; and the controller is provided on the excavator body and electrically connected to the detection device, and is used for receiving the movement data and determining a preset action mode of the bucket cylinder through which the bucket moves to a preset position, and the controller is further configured to control the bucket cylinder to extend or contract according to the preset action mode to drive the bucket to move until the bucket moves to the preset position.
- the detection device includes a horizontal angle sensor which is provided on the bucket and is used for detecting a real-time position angle of the bucket.
- the controller is electrically connected to the horizontal angle sensor, and the controller is configured to receive the real-time position angle and determine the preset action mode of the bucket cylinder through which the bucket moves to the preset position.
- the controller is further configured to control the bucket cylinder to extend or contract according to the preset action mode to drive the bucket to move until the real-time position angle detected by the horizontal angle sensor is equal to the position angle of the bucket at the preset position.
- the power device includes a luffing jib, a bucket rod, a luffing jib cylinder and a bucket rod cylinder.
- the luffing jib is provided on the excavator body, an end of the bucket rod is connected to the luffing jib, and another end of the bucket rod is hinged with the bucket.
- An end of the luffing jib cylinder is provided on the excavator body, and another end of the luffing jib cylinder is drivably connected to the luffing jib to drive the luffing jib to move.
- An end of the bucket rod cylinder is provided on the luffing jib, and another end of the bucket rod cylinder is drivably connected to the bucket rod to drive the bucket rod to move to drive the bucket to move.
- the detection device is provided on the luffing jib cylinder, the bucket rod cylinder and the bucket cylinder, and used for detecting a real-time amount of extension or contraction of the luffing jib cylinder, the bucket rod cylinder and the bucket cylinder.
- the controller is configured to calculate a preset amount of extension or contraction of the bucket cylinder through which the bucket is driven to the preset position according to the real-time amount of extension or contraction of the luffing jib cylinder and the bucket rod cylinder, and control the bucket cylinder to extend or contract according to the preset amount of extension or contraction.
- the detection device includes a first stroke sensor, a second stroke sensor and a third stroke sensor.
- the first stroke sensor is provided on the luffing jib cylinder to detect the real-time amount of extension or contraction of the luffing jib cylinder
- the second stroke sensor is provided on the bucket rod cylinder to detect the real-time amount of extension or contraction of the bucket rod cylinder
- the third stroke sensor is provided on the bucket cylinder to detect the real-time amount of extension or contraction of the bucket cylinder.
- the controller is configured to calculate the preset amount of extension or contraction of the bucket cylinder through which the bucket is driven to the preset position according to the real-time amount of extension or contraction of the luffing jib cylinder and the bucket rod cylinder, and to control the bucket cylinder to extend or contract according to the preset amount of extension or contraction.
- the preset position is a horizontal position or a fixed-angle position.
- the excavator further includes a first switch and a second switch which are provided on the excavator body.
- the first switch and the second switch are electrically connected to the controller and are used for sending instructions to the controller.
- the first switch is used for sending instructions to the controller for driving the bucket to move to the horizontal position
- the second switch is used for sending instructions to the controller for driving the bucket to move to the fixed-angle position; or
- the excavator further includes a touch display screen which is electrically connected to the controller and is used for sending instructions to the controller.
- the excavator further includes a handle.
- the first switch and the second switch are both provided on the handle.
- the handle includes a first handle and a second handle, where the first switch is provided on the first handle and the second switch is provided on the second handle.
- the first switch is provided at a side of the first handle, and the second switch is provided at a top of the second handle; or, the first switch is provided at a top of the first handle, and the second switch is provided at a side of the second handle.
- embodiments of the present application provide a method for controlling any one of the excavators of the embodiments mentioned above, including:
- the embodiments of the present application provide an excavator and a method for controlling excavator.
- the excavator includes an excavator body, a power device, a bucket and a bucket cylinder.
- An end of the power device is connected to the excavator body, and another end of the power device is hinged with the bucket to drive the bucket to move.
- An end of the bucket cylinder is connected to the power device, and another end of the bucket cylinder is drivably connected to the bucket to drive the bucket to rotate relative to the power device.
- the excavator further includes: a detection device and a controller; where the detection device is used for detecting movement data of the bucket or for detecting movement data of the power device and the bucket cylinder; and the controller is provided on the excavator body and electrically connected to the detection device, and is used for receiving the movement data and determining a preset action mode of the bucket cylinder through which the bucket moves to a preset position, and the controller is also configured to control the bucket cylinder to expend or contract according to the preset action mode to drive the bucket to move until the bucket moves to the preset position.
- orientation or positional relations specified by terms such as “top”, “bottom”, “inner”, “outer” and the like are based on the orientation or positional relations shown in the drawings, which are merely for convenience of description of the present application and to simplify description, but does not indicate or imply that the stated devices or components must have the particular orientation and be constructed and operated in a particular orientation, and thus it should not be construed as limiting the present application.
- FIG. 1 is a structural diagram of an excavator 100 provided by an embodiment of the present application.
- the embodiment provides an excavator 100, including an excavator body 101, a power device, a bucket 103 and a bucket cylinder 105.
- the power device is provided on the excavator body 101, and an end of the power device is fixedly connected to the excavator body 101, and another end of the power device is hinged with the bucket 103 to drive the bucket 103 to move in a space.
- the power device includes a luffing jib 107, a bucket rod 111, a luffing jib cylinder 109 and a bucket rod cylinder 113.
- the luffing jib 107 is provided on the excavator body 101, an end of the bucket rod 111 is connected to the luffing jib 107, and another end of the bucket rod 111 is hinged with the bucket 103.
- An end of the luffing jib cylinder 109 is provided on the excavator body 101, and another end of the luffing jib cylinder 109 is drivably connected to the luffing jib 107 to drive the luffing jib 107 to move.
- An end of the bucket rod cylinder 113 is provided on the luffing jib 107, and another end of the bucket rod cylinder 113 is drivably connected to the bucket rod 111 to drive the bucket rod 111 to move and then to drive the bucket 103 to move.
- an end of the bucket cylinder 105 is connected to the power device, and another end of the bucket cylinder 105 is drivably connected to the bucket 103, which is used for driving the bucket 103 to rotate relative to the power device, to make an angle position of the bucket 103 relative to the power device can be adjusted, to facilitate an adjustment of a position angle of the bucket 103 to meet operation requirements of the bucket 103 at various angle positions. For example, when the bucket 103 has been filled with materials, it is need to ensure a level of the bucket 103 to avoid an occurrence of materials falling and other phenomena.
- the adjustment of the angle position of bucket 103 usually needs to be completed by a coordination of the luffing jib 107, the bucket rod 111 and the bucket 103 which is complicated and not conducive to an operation of inexperienced excavator operator, and when some excavation objects are easily lost objects such as muddy water, if an angle of bucket 103 is slightly poor when controlling the luffing jib 107 and the bucket rod 111 to operate, it may cause a certain amount of materials loss and affect the excavation efficiency.
- a structure of excavator 100 is improved by adding detection device and controller 133 in this embodiment.
- the detection device is used for detecting movement data of the bucket 103, or for detecting movement data of the power device (i.e.
- the controller 133 is provided on the excavator body 101 and electrically connected to the detection device, and is used for receiving the movement data and determining a preset action mode of the bucket cylinder 105 through which the bucket 103 moves to a preset position, and the controller 133 is also used for controlling an extension or contraction of the bucket cylinder 105 according to the preset action mode to drive the bucket 103 to move until the bucket 103 moves to the preset position.
- FIG. 2 is partial diagram I of the excavator provided by the embodiment of the present application.
- FIG. 3 is partial diagram II of the excavator provided by the embodiment of the present application.
- the detection device can be a horizontal angle sensor 117.
- the horizontal angle sensor 117 can be provided on a side wall of the bucket 103 to detect a real-time position angle of the bucket 103, to obtain a specific position state of the bucket 103.
- the controller 133 When the detection device is the horizontal angle sensor 117, the controller 133 is electrically connected to the horizontal angle sensor 117, and the controller 133 is configured to receive the real-time position angle, and determine the preset action mode of the bucket cylinder 105 through which the bucket 103 moves to the preset position, to facilitate a subsequent control of the bucket cylinder 105. After determining the preset action mode, the controller 133 is configured to control the bucket cylinder 105 to extend or contract according to the preset action mode to drive the bucket 103 to move until the real-time position angle detected by the horizontal angle sensor 117 is the position angle of the bucket 103 at the preset position, to make the bucket 103 keep in the preset position in real time.
- the preset position can be a horizontal position or a fixed-angle position.
- the fixed-angle position indicates that the bucket 103 can be firmly fixed at any position having an angle other than the horizontal position.
- the preset position can also be adjusted, which is not limited in this embodiment.
- the bucket 103 when the preset position is the horizontal position, in order to prevent falling of materials when the excavator transfers materials, the bucket 103 must always keep a horizontal state, that is, must always keep in a horizontal position.
- the real-time position angle data of the bucket 103 in the horizontal direction can be collected in real time, and the real-time position angle data can be sent to the controller 133.
- the controller 133 After receiving the real-time position angle data, the controller 133 can determine a current angle of the bucket 103, and calculate the preset action mode of the bucket cylinder 105 through which the bucket 103 is adjusted to the horizontal position (that is, calculate that how the bucket cylinder 105 extends or contracts to make the bucket 103 reach the preset position).
- an action command can be sent to the bucket cylinder 105.
- the bucket cylinder 105 receives the command, the bucket cylinder 105 performs extension or contraction according to the preset action mode to drive the bucket 103 to move until it is detected by the horizontal angle sensor 117 that the bucket 103 is in the horizontal position. That is, with this arrangement, when the bucket 103 needs to be kept horizontal, the bucket 103 can be adjusted to the horizontal position by controlling the bucket cylinder 105 to perform extension or contraction through the cooperation of the horizontal angle sensor 117 on the bucket 103 and the controller 133.
- the specific operation process is as follows. An angle of target position is recorded firstly, for example, the angle of the target position when the bucket 103 is located at the target position is detected by the horizontal angle sensor 117, and then the information of the angle of the target position is sent to the controller 133.
- the controller 133 records the information of the angle of the current position and sets it to be the angle of the target position.
- the controller 133 can send a specified action signal to the bucket cylinder 105 to make the bucket cylinder 105 drive the bucket 103 to move to the target position, and then the bucket 103 can always maintain a preset angle with respect to the horizontal plane. That is, when the preset position is a fixed-angle position, it is needed to firstly collect the information of the angle of the bucket 103 at the target position, and then this information can be used as the target angle information, and when the position of the bucket 103 deviates from the target angle information, the controller 133 controls the bucket cylinder 105 to drive the bucket 103 to move.
- an arbitrary position adjustment of the bucket 103 can be realized only by controlling the extension or contraction of the bucket cylinder 105, which can reduce the difficulty of operation, avoid uncoordinated operation, and ensure the efficiency and quality of various operations through the bucket 103.
- FIG. 4 is partial diagram III of the excavator provided by the embodiment of the present application.
- the detection device can also be provided on the luffing jib cylinder 109, the bucket rod cylinder 113 and the bucket cylinder 105 according to requirements, used for detecting the real-time amount of extension or contraction of the luffing jib cylinder 109, the bucket rod cylinder 113 and the bucket cylinder 105.
- the controller 133 is configured to calculate the preset amount of extension or contraction of the bucket cylinder 105 when the bucket 103 is in the preset position according to the real-time amount of extension or contraction of the luffing jib cylinder 109 and the bucket rod cylinder 113, and to control the bucket cylinder 105 to extend or contract according to the preset amount of extension or contraction. That is, through this arrangement, it is not needed to simultaneously control the luffing jib 107, the bucket rod 111 and the bucket 103 to move the preset position, and it is only needed to adjust the bucket 103 to the preset position when the luffing jib 107 and the bucket rod 111 are fixed, to effectively simplify the operation process.
- the detection device includes a first stroke sensor, a second stroke sensor and a third stroke sensor.
- the first stroke sensor namely the luffing jib cylinder stroke sensor 127
- the second stroke sensor namely the bucket rod cylinder stroke sensor 129
- the third stroke sensor is provided on the bucket cylinder 105 to detect the real-time amount of extension or contraction of the bucket cylinder 105.
- the positions of the luffing jib 107 and the bucket rod 111 of the excavator can be calculated through the luffing jib cylinder stroke sensor 127 and the bucket rod cylinder stroke sensor 129.
- positions of the luffing jib 107 and the bucket rod 111 are determined, there is a unique solution in a stroke range of the bucket cylinder 105 to make the bucket 103 in the preset position.
- the preset position can be a horizontal position or a fixed-angle position.
- the luffing jib cylinder stroke sensor 127 and the bucket rod cylinder stroke sensor 129 can send real-time stroke data of the luffing jib cylinder 109 and the bucket rod cylinder 113 to the controller 133.
- the controller 133 can calculate how much the stroke of the bucket cylinder 105 (that is, the preset amount of extension or contraction of the bucket cylinder 105) is needed to drive the bucket 103 to move to a horizontal position or a fixed-angle position according to a preset formula.
- the preset amount of extension or contraction of the bucket cylinder 105 is set as the action target value of the bucket cylinder 105. Then the bucket cylinder 105 is controlled to extend or contract through the controller 133 according to the preset amount of extension or contraction, and through the bucket cylinder sensor for real-time detection can realize the functions of keeping bucket 103 horizontal or fixed angle in any time.
- a horizontal angle sensor 117 can be provided on the bucket 103, and/or stroke sensors can be respectively provided on the luffing jib cylinder 109, the bucket rod cylinder 113 and the bucket cylinder 105, to make the position adjustment of the bucket 103 more convenient, which is not limited in this embodiment.
- a first switch 123 and a second switch 125 can be provided on the excavator body 101 for the convenience of operators such as the driver or staff.
- both the first switch 123 and the second switch 125 are electrically connected to the controller 133 and used for sending instructions to the controller 133, and the first switch 123 is used for sending instructions to the controller 133 for driving the bucket 103 to move to the horizontal position, and the second switch 125 is used for sending instructions to the controller 133 for driving the bucket 103 to move to the fixed-angle position.
- first switch 123 and the second switch 125 Through the arrangement of the first switch 123 and the second switch 125, it is convenient for the operator to control the bucket 103, and the two positions of the bucket 103 are adjusted by the two switches respectively, which is also convenient for the operator to distinguish and avoid confusion.
- the first switch 123 and the second switch 125 can also be replaced by a touch screen, which is electrically connected to the controller 133 and used for sending instructions to the controller 133.
- the excavator 100 further includes a handle, which is an original handle for excavator 100 to excavate and operate.
- the first switch 123 and the second switch 125 can be integrated with the handle to facilitate the operation of the operator.
- the two handles can be marked as a first handle 119 and a second handle 121 respectively, with the first switch 123 provided at the first handle 119 and the second switch 125 provided at the second handle 121.
- the first switch 123 can be provided at a side of the first handle 119 and the second switch 125 can be provided at a top of the second handle 121.
- the first switch 123 and the second switch 125 are similar to a horn button, and when operating the handle, the buttons are easy to operate with a finger pressing the button to turn it on and releasing the button to turn it off.
- the first switch 123 can also be provided at a top of the first handle 119 and the second switch 125 can be provided at a side of the second handle 121.
- FIG. 5 is a diagram of a method for controlling excavator provided by an embodiment of the present application. As shown in FIG. 5 , an embodiment of the present application provide a method for controlling any one of the excavators 100 mentioned above, the method includes:
- the detection device when the detection device is the horizontal angle sensor 117, the real-time position angle of the bucket 103 can be detected by the horizontal angle sensor 117, and then the angle information can be received by the controller 133 and the preset action mode of the bucket cylinder 105 through which the bucket 103 moves to the preset position is determined by the controller 133. Finally, the controller 133 controls the bucket cylinder 105 to extend or contract according to the preset action mode to drive the bucket 103 to move until the real-time position angle detected by the horizontal angle sensor 117 is the position angle of the bucket 103 at the preset position.
- the luffing jib cylinder stroke sensor 127 and the bucket rod cylinder stroke sensor 129 can send real-time stroke data of the luffing jib cylinder 109 and the bucket rod cylinder 113 to the controller 133.
- the controller 133 can calculate how much the stroke of the bucket cylinder 105 (that is, the preset amount of extension or contraction of the bucket cylinder 105) is needed to drive the bucket 103 to move to a horizontal position or a fixed-angle position according to a preset formula.
- the preset amount of extension or contraction of the bucket cylinder 105 is set as the action target value of the bucket cylinder 105. Then the bucket cylinder 105 is controlled to extend or contract through the controller 133 according to the preset amount of extension or contraction.
- the horizontal angle sensor 117 can be used for detecting the real-time position angle of the bucket 103, and then the detected value can be sent to the controller 133.
- the controller 133 determines the preset action mode of the bucket cylinder 105 through which the bucket 103 moves to the preset position according to the detected value, to facilitate the subsequent control for the bucket cylinder 105. After the preset action mode is determined, the controller 133 controls the bucket cylinder 105 to extend or contract according to the preset action mode to drive the bucket 103 to move to the preset position.
- the detection device is a cylinder stroke sensor
- the luffing jib cylinder stroke sensor 127 can be used for detecting the movement stroke of the luffing jib cylinder 109
- the bucket rod cylinder stroke sensor 129 can be used for detecting the movement stroke of the bucket rod cylinder 113.
- the real-time stroke data of the luffing jib cylinder 109 and the bucket rod cylinder 113 can be sent to the controller 133.
- the controller 133 can calculate how much the stroke of the bucket cylinder 105 is needed to drive the bucket 103 to move to a horizontal position or a fixed-angle position according to a preset formula.
- the preset amount of extension or contraction of the bucket cylinder 105 is set as the action target value of the bucket cylinder 105. Then the bucket cylinder 105 is controlled to extend or contract by the controller 133 according to the preset amount of extension or contraction.
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Operation Control Of Excavators (AREA)
Abstract
Description
- The present application claims priority to
Chinese Application No. 202011119205.3, filed on October 19, 2020 - The present application relates to the technical field of bucket control, in particular to an excavator and a method for controlling excavator.
- In the related art, a working device of an excavator is usually composed of three main action parts: a luffing jib, a bucket rod and a bucket. When an angle of the bucket needs to be adjusted, it is usually need to control and coordinate movements of the luffing jib, the bucket rod and the bucket at a same time. In this way, it is difficult to operate, and inexperienced excavator operators often have uncoordinated movements, or a situation of falling materials may occur due to poor control for the angle of the bucket. Especially when some excavation objects are easily lost objects such as muddy water, when controlling the luffing jib and the bucket rod to operate, if the angle of the bucket is slightly inaccuracy, it may cause a certain amount of materials loss and affect excavation efficiency.
- An objective of the present application is to provide an excavator and a method for controlling excavator. Through a cooperation of a detection device and a controller, when adjusting an angle position of a bucket, it is only needed to control extension or contraction of a bucket cylinder, which can reduce difficulty of operation and avoid uncoordinated operation, and ensure efficiency and quality of various operations through the bucket.
- Embodiments of the present application can be implemented as follows.
- In a first aspect, embodiments of the present application provide an excavator. The excavator includes an excavator body, a power device, a bucket and a bucket cylinder. An end of the power device is connected to the excavator body, and another end of the power device is hinged with the bucket to drive the bucket to move. An end of the bucket cylinder is connected to the power device, and another end of the bucket cylinder is drivably connected to the bucket to drive the bucket to rotate relative to the power device. The excavator further includes:
a detection device and a controller; where the detection device is used for detecting movement data of the bucket or for detecting movement data of the power device and the bucket cylinder; and the controller is provided on the excavator body and electrically connected to the detection device, and is used for receiving the movement data and determining a preset action mode of the bucket cylinder through which the bucket moves to a preset position, and the controller is further configured to control the bucket cylinder to extend or contract according to the preset action mode to drive the bucket to move until the bucket moves to the preset position. - In an embodiment, the detection device includes a horizontal angle sensor which is provided on the bucket and is used for detecting a real-time position angle of the bucket.
- The controller is electrically connected to the horizontal angle sensor, and the controller is configured to receive the real-time position angle and determine the preset action mode of the bucket cylinder through which the bucket moves to the preset position. The controller is further configured to control the bucket cylinder to extend or contract according to the preset action mode to drive the bucket to move until the real-time position angle detected by the horizontal angle sensor is equal to the position angle of the bucket at the preset position.
- In an embodiment, the power device includes a luffing jib, a bucket rod, a luffing jib cylinder and a bucket rod cylinder.
- The luffing jib is provided on the excavator body, an end of the bucket rod is connected to the luffing jib, and another end of the bucket rod is hinged with the bucket. An end of the luffing jib cylinder is provided on the excavator body, and another end of the luffing jib cylinder is drivably connected to the luffing jib to drive the luffing jib to move. An end of the bucket rod cylinder is provided on the luffing jib, and another end of the bucket rod cylinder is drivably connected to the bucket rod to drive the bucket rod to move to drive the bucket to move.
- The detection device is provided on the luffing jib cylinder, the bucket rod cylinder and the bucket cylinder, and used for detecting a real-time amount of extension or contraction of the luffing jib cylinder, the bucket rod cylinder and the bucket cylinder. The controller is configured to calculate a preset amount of extension or contraction of the bucket cylinder through which the bucket is driven to the preset position according to the real-time amount of extension or contraction of the luffing jib cylinder and the bucket rod cylinder, and control the bucket cylinder to extend or contract according to the preset amount of extension or contraction.
- In an embodiment, the detection device includes a first stroke sensor, a second stroke sensor and a third stroke sensor. The first stroke sensor is provided on the luffing jib cylinder to detect the real-time amount of extension or contraction of the luffing jib cylinder, the second stroke sensor is provided on the bucket rod cylinder to detect the real-time amount of extension or contraction of the bucket rod cylinder, and the third stroke sensor is provided on the bucket cylinder to detect the real-time amount of extension or contraction of the bucket cylinder.
- The controller is configured to calculate the preset amount of extension or contraction of the bucket cylinder through which the bucket is driven to the preset position according to the real-time amount of extension or contraction of the luffing jib cylinder and the bucket rod cylinder, and to control the bucket cylinder to extend or contract according to the preset amount of extension or contraction.
- In an embodiment, the preset position is a horizontal position or a fixed-angle position.
- In an embodiment, the excavator further includes a first switch and a second switch which are provided on the excavator body. The first switch and the second switch are electrically connected to the controller and are used for sending instructions to the controller. The first switch is used for sending instructions to the controller for driving the bucket to move to the horizontal position, and the second switch is used for sending instructions to the controller for driving the bucket to move to the fixed-angle position;
or,
the excavator further includes a touch display screen which is electrically connected to the controller and is used for sending instructions to the controller. - In an embodiment, the excavator further includes a handle. The first switch and the second switch are both provided on the handle.
- In an embodiment, the handle includes a first handle and a second handle, where the first switch is provided on the first handle and the second switch is provided on the second handle.
- In an embodiment, the first switch is provided at a side of the first handle, and the second switch is provided at a top of the second handle;
or,
the first switch is provided at a top of the first handle, and the second switch is provided at a side of the second handle. - In a second aspect, embodiments of the present application provide a method for controlling any one of the excavators of the embodiments mentioned above, including:
- detecting movement data of the power device and the bucket cylinder through the detection device; or, detecting movement data of the bucket;
- receiving the movement data through the controller, and determining the preset action mode of the bucket cylinder through which the bucket moves to the preset position; and
- controlling the bucket cylinder to extend or contract by the controller according to the preset action mode to drive the bucket to move until the bucket moves to the preset position.
- The embodiments of the present application have at least the following advantages or beneficial effects.
- The embodiments of the present application provide an excavator and a method for controlling excavator. The excavator includes an excavator body, a power device, a bucket and a bucket cylinder. An end of the power device is connected to the excavator body, and another end of the power device is hinged with the bucket to drive the bucket to move. An end of the bucket cylinder is connected to the power device, and another end of the bucket cylinder is drivably connected to the bucket to drive the bucket to rotate relative to the power device. The excavator further includes: a detection device and a controller; where the detection device is used for detecting movement data of the bucket or for detecting movement data of the power device and the bucket cylinder; and the controller is provided on the excavator body and electrically connected to the detection device, and is used for receiving the movement data and determining a preset action mode of the bucket cylinder through which the bucket moves to a preset position, and the controller is also configured to control the bucket cylinder to expend or contract according to the preset action mode to drive the bucket to move until the bucket moves to the preset position. Through a cooperation of the detection device and the controller in the excavator, when adjusting an angle position of the bucket, it is only need to control the bucket cylinder to extend or contract, which can reduce a difficulty of operation and avoid uncoordinated operation, and ensure efficiency and quality of various operations through the bucket.
- In order to more clearly illustrate the solutions according to the embodiments of the present application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. It should be noted that the following drawings only show some embodiments of the present application, and should not be considered as a limitation of the scope. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.
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FIG. 1 is a structural diagram of an excavator provided by an embodiment of the present application. -
FIG. 2 is partial diagram I of the excavator provided by the embodiment of the present application. -
FIG. 3 is partial diagram II of the excavator provided by the embodiment of the present application. -
FIG. 4 is partial diagram III of the excavator provided by the embodiment of the present application. -
FIG. 5 is a diagram of a method for controlling excavator provided by an embodiment of the present application. - Reference numerals: 100-excavator; 101-excavator body; 103-bucket; 105-bucket cylinder; 107-luffing jib; 109-luffing jib cylinder; 111-bucket rod; 113-bucket rod cylinder; 117-horizontal angle sensor; 119-first handle; 121-second handle; 123-first switch; 125-second switch; 127-luffing jib cylinder stroke sensor; 129-bucket rod cylinder stroke sensor; 133-controller.
- In order to more clearly illustrate the objectives, solutions, and advantages of the embodiments of the present application, the solutions of the embodiments of the present application will be clearly and completely described below in combination with the accompanying drawings of the embodiments of the present application. It should be noted that, the described embodiments are a part of embodiments of the present application, rather than all the embodiments. The components in the embodiments of the present application, which are described and shown in the drawings herein, may be arranged and designed in various different configurations in generally.
- The following detailed description for the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but simply to indicate the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort fall within the scope of protection of the present application.
- It should be noted that same or similar numerals and letters indicate same or similar items in the drawings below, so once an item is defined in a drawing, it does not need to be further defined and interpreted in other figures.
- In the description of the present application, it should be noted that, the orientation or positional relations specified by terms such as "top", "bottom", "inner", "outer" and the like, are based on the orientation or positional relations shown in the drawings, which are merely for convenience of description of the present application and to simplify description, but does not indicate or imply that the stated devices or components must have the particular orientation and be constructed and operated in a particular orientation, and thus it should not be construed as limiting the present application.
- Furthermore, the terms "first", "second" and the like are only used for descriptive purposes and should not be construed as indicating or implying a relative importance.
- It should be noted that the features of the embodiments of the present application can be combined without conflict.
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FIG. 1 is a structural diagram of anexcavator 100 provided by an embodiment of the present application. Referring toFIG. 1 , the embodiment provides anexcavator 100, including anexcavator body 101, a power device, abucket 103 and abucket cylinder 105. - In an embodiment, the power device is provided on the
excavator body 101, and an end of the power device is fixedly connected to theexcavator body 101, and another end of the power device is hinged with thebucket 103 to drive thebucket 103 to move in a space. In an embodiment, the power device includes a luffingjib 107, abucket rod 111, a luffingjib cylinder 109 and abucket rod cylinder 113. The luffingjib 107 is provided on theexcavator body 101, an end of thebucket rod 111 is connected to the luffingjib 107, and another end of thebucket rod 111 is hinged with thebucket 103. An end of the luffingjib cylinder 109 is provided on theexcavator body 101, and another end of the luffingjib cylinder 109 is drivably connected to the luffingjib 107 to drive the luffingjib 107 to move. An end of thebucket rod cylinder 113 is provided on the luffingjib 107, and another end of thebucket rod cylinder 113 is drivably connected to thebucket rod 111 to drive thebucket rod 111 to move and then to drive thebucket 103 to move. Through the cooperation of luffingjib 107, thebucket rod 111, the luffingjib cylinder 109 and thebucket rod cylinder 113, thebucket 103 can excavate at various positions. - In an embodiment, an end of the
bucket cylinder 105 is connected to the power device, and another end of thebucket cylinder 105 is drivably connected to thebucket 103, which is used for driving thebucket 103 to rotate relative to the power device, to make an angle position of thebucket 103 relative to the power device can be adjusted, to facilitate an adjustment of a position angle of thebucket 103 to meet operation requirements of thebucket 103 at various angle positions. For example, when thebucket 103 has been filled with materials, it is need to ensure a level of thebucket 103 to avoid an occurrence of materials falling and other phenomena. - In the related art, the adjustment of the angle position of
bucket 103 usually needs to be completed by a coordination of the luffingjib 107, thebucket rod 111 and thebucket 103 which is complicated and not conducive to an operation of inexperienced excavator operator, and when some excavation objects are easily lost objects such as muddy water, if an angle ofbucket 103 is slightly poor when controlling the luffingjib 107 and thebucket rod 111 to operate, it may cause a certain amount of materials loss and affect the excavation efficiency. In view of that, a structure ofexcavator 100 is improved by adding detection device andcontroller 133 in this embodiment. The detection device is used for detecting movement data of thebucket 103, or for detecting movement data of the power device (i.e. the luffingjib cylinder 109 and the bucket rod cylinder 113) and thebucket cylinder 105; and thecontroller 133 is provided on theexcavator body 101 and electrically connected to the detection device, and is used for receiving the movement data and determining a preset action mode of thebucket cylinder 105 through which thebucket 103 moves to a preset position, and thecontroller 133 is also used for controlling an extension or contraction of thebucket cylinder 105 according to the preset action mode to drive thebucket 103 to move until thebucket 103 moves to the preset position. Through the arrangement and cooperation of the detection device and thecontroller 133, when adjusting the angle position of thebucket 103, it is only need to control the extension or contraction of thebucket cylinder 105, which can reduce a difficulty of operation and avoid uncoordinated operation, and ensure the efficiency and quality of various operations through thebucket 103. The improvements of theexcavator 100 are described in detail below. The unimproved parts of theexcavator 100 are the same as the excavator in the related art, and this embodiment will not repeat that. -
FIG. 2 is partial diagram I of the excavator provided by the embodiment of the present application.FIG. 3 is partial diagram II of the excavator provided by the embodiment of the present application. Referring toFIG. 2 andFIG. 3 , in this embodiment, the detection device can be ahorizontal angle sensor 117. Thehorizontal angle sensor 117 can be provided on a side wall of thebucket 103 to detect a real-time position angle of thebucket 103, to obtain a specific position state of thebucket 103. When the detection device is thehorizontal angle sensor 117, thecontroller 133 is electrically connected to thehorizontal angle sensor 117, and thecontroller 133 is configured to receive the real-time position angle, and determine the preset action mode of thebucket cylinder 105 through which thebucket 103 moves to the preset position, to facilitate a subsequent control of thebucket cylinder 105. After determining the preset action mode, thecontroller 133 is configured to control thebucket cylinder 105 to extend or contract according to the preset action mode to drive thebucket 103 to move until the real-time position angle detected by thehorizontal angle sensor 117 is the position angle of thebucket 103 at the preset position, to make thebucket 103 keep in the preset position in real time. - It should be noted that in this embodiment, the preset position can be a horizontal position or a fixed-angle position. The fixed-angle position indicates that the
bucket 103 can be firmly fixed at any position having an angle other than the horizontal position. In other embodiments, the preset position can also be adjusted, which is not limited in this embodiment. - In an embodiment, referring to
FIG. 2 , when the preset position is the horizontal position, in order to prevent falling of materials when the excavator transfers materials, thebucket 103 must always keep a horizontal state, that is, must always keep in a horizontal position. By providing thehorizontal angle sensor 117, the real-time position angle data of thebucket 103 in the horizontal direction can be collected in real time, and the real-time position angle data can be sent to thecontroller 133. After receiving the real-time position angle data, thecontroller 133 can determine a current angle of thebucket 103, and calculate the preset action mode of thebucket cylinder 105 through which thebucket 103 is adjusted to the horizontal position (that is, calculate that how thebucket cylinder 105 extends or contracts to make thebucket 103 reach the preset position). When thecontroller 133 determines the way to adjust thebucket cylinder 105, an action command can be sent to thebucket cylinder 105. When thebucket cylinder 105 receives the command, thebucket cylinder 105 performs extension or contraction according to the preset action mode to drive thebucket 103 to move until it is detected by thehorizontal angle sensor 117 that thebucket 103 is in the horizontal position. That is, with this arrangement, when thebucket 103 needs to be kept horizontal, thebucket 103 can be adjusted to the horizontal position by controlling thebucket cylinder 105 to perform extension or contraction through the cooperation of thehorizontal angle sensor 117 on thebucket 103 and thecontroller 133. That is, with this arrangement, it can be ensured that thebucket 103 is in the horizontal position only by adjusting the extension or contraction of thebucket cylinder 105 without a driving cooperation of the luffingjib cylinder 109 and thebucket rod cylinder 113, which can reduce workload, make the operation more convenient, and then can ensure work efficiency and quality. - In an embodiment, referring to
FIG. 3 , when the preset position is a fixed-angle position, under certain working conditions, when thebucket 103 needs to maintain a certain angle with relative to the horizontal plane, it can be realized as follows. In an embodiment, the specific operation process is as follows. An angle of target position is recorded firstly, for example, the angle of the target position when thebucket 103 is located at the target position is detected by thehorizontal angle sensor 117, and then the information of the angle of the target position is sent to thecontroller 133. Thecontroller 133 records the information of the angle of the current position and sets it to be the angle of the target position. Then, when the angle of thebucket 103 changes due to the actions of the luffingjib 107 and thebucket rod 111, thecontroller 133 can send a specified action signal to thebucket cylinder 105 to make thebucket cylinder 105 drive thebucket 103 to move to the target position, and then thebucket 103 can always maintain a preset angle with respect to the horizontal plane. That is, when the preset position is a fixed-angle position, it is needed to firstly collect the information of the angle of thebucket 103 at the target position, and then this information can be used as the target angle information, and when the position of thebucket 103 deviates from the target angle information, thecontroller 133 controls thebucket cylinder 105 to drive thebucket 103 to move. Through the above arrangement, an arbitrary position adjustment of thebucket 103 can be realized only by controlling the extension or contraction of thebucket cylinder 105, which can reduce the difficulty of operation, avoid uncoordinated operation, and ensure the efficiency and quality of various operations through thebucket 103. -
FIG. 4 is partial diagram III of the excavator provided by the embodiment of the present application. Referring toFIG.4 , since thebucket 103 needs to contact an excavation object when operating, sensors on it may be easily damaged, wiring needs special protection and functional stability is susceptible to working conditions. In an embodiment, the detection device can also be provided on the luffingjib cylinder 109, thebucket rod cylinder 113 and thebucket cylinder 105 according to requirements, used for detecting the real-time amount of extension or contraction of the luffingjib cylinder 109, thebucket rod cylinder 113 and thebucket cylinder 105. In an embodiment, thecontroller 133 is configured to calculate the preset amount of extension or contraction of thebucket cylinder 105 when thebucket 103 is in the preset position according to the real-time amount of extension or contraction of the luffingjib cylinder 109 and thebucket rod cylinder 113, and to control thebucket cylinder 105 to extend or contract according to the preset amount of extension or contraction. That is, through this arrangement, it is not needed to simultaneously control the luffingjib 107, thebucket rod 111 and thebucket 103 to move the preset position, and it is only needed to adjust thebucket 103 to the preset position when the luffingjib 107 and thebucket rod 111 are fixed, to effectively simplify the operation process. - In an embodiment, the detection device includes a first stroke sensor, a second stroke sensor and a third stroke sensor. The first stroke sensor, namely the luffing jib
cylinder stroke sensor 127, is provided on the luffingjib cylinder 109 to detect the real-time amount of extension or contraction of the luffingjib cylinder 109. The second stroke sensor, namely the bucket rodcylinder stroke sensor 129, is provided on thebucket rod cylinder 113 to detect the real-time amount of extension or contraction of thebucket rod cylinder 113. The third stroke sensor, namely the bucket cylinder stroke sensor, is provided on thebucket cylinder 105 to detect the real-time amount of extension or contraction of thebucket cylinder 105. - The positions of the luffing
jib 107 and thebucket rod 111 of the excavator can be calculated through the luffing jibcylinder stroke sensor 127 and the bucket rodcylinder stroke sensor 129. When positions of the luffingjib 107 and thebucket rod 111 are determined, there is a unique solution in a stroke range of thebucket cylinder 105 to make thebucket 103 in the preset position. The preset position can be a horizontal position or a fixed-angle position. Through this principle, when a working device acts, the luffing jibcylinder stroke sensor 127 and the bucket rodcylinder stroke sensor 129 can send real-time stroke data of the luffingjib cylinder 109 and thebucket rod cylinder 113 to thecontroller 133. After thecontroller 133 receives the real-time stroke data of the luffingjib cylinder 109 and thebucket rod cylinder 113, thecontroller 133 can calculate how much the stroke of the bucket cylinder 105 (that is, the preset amount of extension or contraction of the bucket cylinder 105) is needed to drive thebucket 103 to move to a horizontal position or a fixed-angle position according to a preset formula. The preset amount of extension or contraction of thebucket cylinder 105 is set as the action target value of thebucket cylinder 105. Then thebucket cylinder 105 is controlled to extend or contract through thecontroller 133 according to the preset amount of extension or contraction, and through the bucket cylinder sensor for real-time detection can realize the functions of keepingbucket 103 horizontal or fixed angle in any time. - In other embodiments, a
horizontal angle sensor 117 can be provided on thebucket 103, and/or stroke sensors can be respectively provided on the luffingjib cylinder 109, thebucket rod cylinder 113 and thebucket cylinder 105, to make the position adjustment of thebucket 103 more convenient, which is not limited in this embodiment. - Further referring to
FIGs. 2-4 , in an embodiment, regardless of what type of the sensor used as the detection device, afirst switch 123 and asecond switch 125 can be provided on theexcavator body 101 for the convenience of operators such as the driver or staff. In an embodiment, both thefirst switch 123 and thesecond switch 125 are electrically connected to thecontroller 133 and used for sending instructions to thecontroller 133, and thefirst switch 123 is used for sending instructions to thecontroller 133 for driving thebucket 103 to move to the horizontal position, and thesecond switch 125 is used for sending instructions to thecontroller 133 for driving thebucket 103 to move to the fixed-angle position. Through the arrangement of thefirst switch 123 and thesecond switch 125, it is convenient for the operator to control thebucket 103, and the two positions of thebucket 103 are adjusted by the two switches respectively, which is also convenient for the operator to distinguish and avoid confusion. In other embodiments, thefirst switch 123 and thesecond switch 125 can also be replaced by a touch screen, which is electrically connected to thecontroller 133 and used for sending instructions to thecontroller 133. - In an embodiment, the
excavator 100 further includes a handle, which is an original handle forexcavator 100 to excavate and operate. In this embodiment, thefirst switch 123 and thesecond switch 125 can be integrated with the handle to facilitate the operation of the operator. - In an embodiment, since the
excavator 100 typically includes two handles, for ease of operator differentiation, the two handles can be marked as afirst handle 119 and asecond handle 121 respectively, with thefirst switch 123 provided at thefirst handle 119 and thesecond switch 125 provided at thesecond handle 121. Through this arrangement, when the operator needs to adjust the angle of thebucket 103, it can be performed through the handle of the corresponding position, thereby liberating another handle control object, and realizing the purpose that one handle only controls one part during materials transfer. The operation is simpler and more precise, avoiding the occurrence of materials falling due to poor control of the angle of thebucket 103. - Furthermore, in order to avoid the interference of the above function to the normal excavating and unloading operations, if this function is turned on manually, the
first switch 123 can be provided at a side of thefirst handle 119 and thesecond switch 125 can be provided at a top of thesecond handle 121. Thefirst switch 123 and thesecond switch 125 are similar to a horn button, and when operating the handle, the buttons are easy to operate with a finger pressing the button to turn it on and releasing the button to turn it off. In other embodiments, thefirst switch 123 can also be provided at a top of thefirst handle 119 and thesecond switch 125 can be provided at a side of thesecond handle 121. -
FIG. 5 is a diagram of a method for controlling excavator provided by an embodiment of the present application. As shown inFIG. 5 , an embodiment of the present application provide a method for controlling any one of theexcavators 100 mentioned above, the method includes: - S1: movement data of the power device and the
bucket cylinder 105 is detected through the detection device; or, movement data of thebucket 103 is detected; - S2: the movement data is received through the
controller 133, and the preset action mode of thebucket cylinder 105 through which the bucket moves to the preset position is determined; and - S3: the
bucket cylinder 105 is controlled to extend or contract by thecontroller 133 according to the preset action mode to drive thebucket 103 to move until thebucket 103 moves to the preset position. - In an embodiment, when the detection device is the
horizontal angle sensor 117, the real-time position angle of thebucket 103 can be detected by thehorizontal angle sensor 117, and then the angle information can be received by thecontroller 133 and the preset action mode of thebucket cylinder 105 through which thebucket 103 moves to the preset position is determined by thecontroller 133. Finally, thecontroller 133 controls thebucket cylinder 105 to extend or contract according to the preset action mode to drive thebucket 103 to move until the real-time position angle detected by thehorizontal angle sensor 117 is the position angle of thebucket 103 at the preset position. - In an embodiment, when the detection device is a cylinder stroke sensor, the luffing jib
cylinder stroke sensor 127 and the bucket rodcylinder stroke sensor 129 can send real-time stroke data of the luffingjib cylinder 109 and thebucket rod cylinder 113 to thecontroller 133. After receiving the real-time stroke data of the luffingjib cylinder 109 and thebucket rod cylinder 113, thecontroller 133 can calculate how much the stroke of the bucket cylinder 105 (that is, the preset amount of extension or contraction of the bucket cylinder 105) is needed to drive thebucket 103 to move to a horizontal position or a fixed-angle position according to a preset formula. The preset amount of extension or contraction of thebucket cylinder 105 is set as the action target value of thebucket cylinder 105. Then thebucket cylinder 105 is controlled to extend or contract through thecontroller 133 according to the preset amount of extension or contraction. - The following is a detailed introduction to the principle and process of the
excavator 100 and the method for controlling theexcavator 100 provided by the embodiments of the present application. - When the detection device is the
horizontal angle sensor 117, thehorizontal angle sensor 117 can be used for detecting the real-time position angle of thebucket 103, and then the detected value can be sent to thecontroller 133. Thecontroller 133 determines the preset action mode of thebucket cylinder 105 through which thebucket 103 moves to the preset position according to the detected value, to facilitate the subsequent control for thebucket cylinder 105. After the preset action mode is determined, thecontroller 133 controls thebucket cylinder 105 to extend or contract according to the preset action mode to drive thebucket 103 to move to the preset position. - Similarly, when the detection device is a cylinder stroke sensor, the luffing jib
cylinder stroke sensor 127 can be used for detecting the movement stroke of the luffingjib cylinder 109 and the bucket rodcylinder stroke sensor 129 can be used for detecting the movement stroke of thebucket rod cylinder 113. The real-time stroke data of the luffingjib cylinder 109 and thebucket rod cylinder 113 can be sent to thecontroller 133. After thecontroller 133 receives the real-time stroke data of the luffingjib cylinder 109 and thebucket rod cylinder 113, thecontroller 133 can calculate how much the stroke of thebucket cylinder 105 is needed to drive thebucket 103 to move to a horizontal position or a fixed-angle position according to a preset formula. The preset amount of extension or contraction of thebucket cylinder 105 is set as the action target value of thebucket cylinder 105. Then thebucket cylinder 105 is controlled to extend or contract by thecontroller 133 according to the preset amount of extension or contraction. - In the above process, no matter what kind of sensor is selected for the detection device, through the cooperation of the sensor and the
controller 133, when adjusting the angle position of thebucket 103, it is only need to control the extension or contraction of thebucket cylinder 105, which can reduce the difficulty of operation and avoid uncoordinated operation, and then ensure the efficiency and quality of the work performed by thebucket 103. - The above are only the specific embodiments of the present application, but the scope of protection of the present application is not limited to these. In the scope disclosed by the present application, modifications and substitutions made easily by those skilled in the art should be covered within the scope of protection of this application. Therefore, the scope of protection of this application shall be based on that of the claim.
Claims (10)
- An excavator, comprising an excavator body, a power device, a bucket and a bucket cylinder, an end of the power device being connected to the excavator body, another end of the power device being hinged with the bucket to drive the bucket to move, an end of the bucket cylinder being connected to the power device, another end of the bucket cylinder being drivably connected to the bucket to drive the bucket to rotate relative to the power device, wherein the excavator further comprises:a detection device used for detecting movement data of the bucket or for detecting movement data of the power device and the bucket cylinder; anda controller provided on the excavator body and electrically connected to the detection device, wherein the controller is used for receiving the movement data and determining a preset action mode of the bucket cylinder through which the bucket moves to a preset position, and the controller is further configured to control the bucket cylinder to extend or contract according to the preset action mode to drive the bucket to move until the bucket moves to the preset position.
- The excavator according to claim 1, wherein the detection device comprises a horizontal angle sensor which is provided on the bucket and is used for detecting a real-time position angle of the bucket; and
the controller is electrically connected to the horizontal angle sensor, and is configured to receive the real-time position angle and determine the preset action mode of the bucket cylinder through which the bucket moves to the preset position, and the controller is further configured to control the bucket cylinder to extend or contract according to the preset action mode to drive the bucket to move until the real-time position angle detected by the horizontal angle sensor is equal to the position angle of the bucket at the preset position. - The excavator according to claim 1, wherein:the power device comprises a luffing jib, a bucket rod, a luffing jib cylinder and a bucket rod cylinder;the luffing jib is provided on the excavator body, an end of the bucket rod is connected to the luffing jib, and another end of the bucket rod is hinged with the bucket, an end of the luffing jib cylinder is provided on the excavator body, and another end of the luffing jib cylinder is drivably connected to the luffing jib to drive the luffing jib to move, and an end of the bucket rod cylinder is provided on the luffing jib, and another end of the bucket rod cylinder is drivably connected to the bucket rod to drive the bucket rod to move to drive the bucket to move; andthe detection device is provided on the luffing jib cylinder, the bucket rod cylinder and the bucket cylinder, and used for detecting a real-time amount of extension or contraction of the luffing jib cylinder, the bucket rod cylinder and the bucket cylinder, and the controller is configured to calculate a preset amount of extension or contraction of the bucket cylinder through which the bucket is driven to the preset position according to the real-time amount of extension or contraction of the luffing jib cylinder and the bucket rod cylinder, and control the bucket cylinder to extend or contract according to the preset amount of extension or contraction.
- The excavator according to claim 3, wherein:the detection device comprises a first stroke sensor, a second stroke sensor and a third stroke sensor, the first stroke sensor is provided on the luffing jib cylinder to detect the real-time amount of extension or contraction of the luffing jib cylinder, the second stroke sensor is provided on the bucket rod cylinder to detect the real-time amount of extension or contraction of the bucket rod cylinder, and the third stroke sensor is provided on the bucket cylinder to detect the real-time amount of extension or contraction of the bucket cylinder; andthe controller is configured to calculate the preset amount of extension or contraction of the bucket cylinder through which the bucket is driven to the preset position according to the real-time amount of extension or contraction of the luffing jib cylinder and the bucket rod cylinder, and to control the bucket cylinder to extend or contract according to the preset amount of extension or contraction.
- The excavator according to any one of claims 1-4, wherein:
the preset position is a horizontal position or a fixed-angle position. - The excavator according to claim 5, wherein,the excavator further comprises a first switch and a second switch which are provided on the excavator body, the first switch and the second switch are electrically connected to the controller and are used for sending instructions to the controller, the first switch is used for sending instructions to the controller for driving the bucket to move to the horizontal position, and the second switch is used for sending instructions to the controller for driving the bucket to move to the fixed-angle position; orthe excavator further comprises a touch display screen which is electrically connected to the controller and is used for sending instructions to the controller.
- The excavator according to claim 6, wherein:
the excavator further comprises a handle, and the first switch and the second switch are both provided on the handle. - The excavator according to claim 7, wherein:
the handle comprises a first handle and a second handle, wherein the first switch is provided on the first handle and the second switch is provided on the second handle. - The excavator according to claim 8, wherein:the first switch is provided at a side of the first handle, and the second switch is provided at a top of the second handle;or,the first switch is provided at a top of the first handle, and the second switch is provided at a side of the second handle.
- A method for controlling the excavator according to any one of claims 1-9, comprising:detecting movement data of the power device and the bucket cylinder through the detection device, or, detecting movement data of the bucket;receiving the movement data through the controller, and determining the preset action mode of the bucket cylinder through which the bucket moves to the preset position; andcontrolling the bucket cylinder to extend or contract by the controller according to the preset action mode to drive the bucket to move until the bucket moves to the preset position.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202011119205.3A CN112281940B (en) | 2020-10-19 | 2020-10-19 | Excavator and control method thereof |
PCT/CN2021/106431 WO2022083186A1 (en) | 2020-10-19 | 2021-07-15 | Excavator and control method for excavator |
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EP4230803A1 true EP4230803A1 (en) | 2023-08-23 |
EP4230803A4 EP4230803A4 (en) | 2024-03-20 |
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CN111364534B (en) * | 2020-04-24 | 2023-07-14 | 三一重机有限公司 | Bucket rod device, control method thereof and excavator |
CN112281940B (en) * | 2020-10-19 | 2022-09-09 | 三一重机有限公司 | Excavator and control method thereof |
CN113152562A (en) * | 2021-03-30 | 2021-07-23 | 中联重科股份有限公司 | Method and device for controlling dredging equipment, controller and dredging equipment |
CN113293813B (en) * | 2021-06-30 | 2022-12-23 | 三一重机有限公司 | Control method of excavator and excavator |
Family Cites Families (17)
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JPS56105030A (en) * | 1980-01-22 | 1981-08-21 | Komatsu Ltd | Automatic controller for working machine |
JPS5952255B2 (en) * | 1982-06-07 | 1984-12-19 | 株式会社小松製作所 | Automatic excavation control device for power shovel |
JPH083187B2 (en) * | 1985-10-08 | 1996-01-17 | 株式会社小松製作所 | Power shovel bucket angle controller |
US4805086A (en) * | 1987-04-24 | 1989-02-14 | Laser Alignment, Inc. | Apparatus and method for controlling a hydraulic excavator |
GB2251232B (en) * | 1990-09-29 | 1995-01-04 | Samsung Heavy Ind | Automatic actuating system for actuators of excavator |
JPH08151657A (en) * | 1994-11-29 | 1996-06-11 | Shin Caterpillar Mitsubishi Ltd | Bucket angle control method for hydraulic shovel |
US7222444B2 (en) * | 2004-10-21 | 2007-05-29 | Deere & Company | Coordinated linkage system for a work vehicle |
CN101481918A (en) * | 2009-01-08 | 2009-07-15 | 三一重机有限公司 | Control method and control device for hydraulic shovel scraper bucket |
CN102041824B (en) * | 2010-12-09 | 2012-08-29 | 三一重机有限公司 | Automatic control system and control method of working device of excavator |
WO2014051170A1 (en) * | 2012-09-25 | 2014-04-03 | Volvo Construction Equipment Ab | Automatic grading system for construction machine and method for controlling the same |
WO2014167718A1 (en) * | 2013-04-12 | 2014-10-16 | 株式会社小松製作所 | Control system and control method for construction machine |
CN103321269B (en) * | 2013-06-26 | 2017-01-18 | 合肥汇众知识产权管理有限公司 | Method for controlling excavator in flat ground mode |
DE112014000077B4 (en) * | 2014-06-02 | 2018-04-05 | Komatsu Ltd. | Control system for a construction machine, construction machine and method for controlling a construction machine |
DE112015000011B4 (en) * | 2015-02-02 | 2017-10-19 | Komatsu Ltd. | Construction vehicle and method for controlling construction vehicle |
CN110777862A (en) * | 2019-10-16 | 2020-02-11 | 南宁学院 | Loader working device with motor controlling bucket rotating bucket |
CN111395441A (en) * | 2020-04-27 | 2020-07-10 | 徐州徐工铁路装备有限公司 | Intelligent resistance reduction control system and control method for underground carry scraper |
CN112281940B (en) * | 2020-10-19 | 2022-09-09 | 三一重机有限公司 | Excavator and control method thereof |
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2020
- 2020-10-19 CN CN202011119205.3A patent/CN112281940B/en active Active
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2021
- 2021-07-15 EP EP21881606.4A patent/EP4230803A4/en active Pending
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EP4230803A4 (en) | 2024-03-20 |
CN112281940B (en) | 2022-09-09 |
WO2022083186A1 (en) | 2022-04-28 |
CN112281940A (en) | 2021-01-29 |
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