CN112962696A - Device and method for controlling shaking of dozer blade of wheel excavator - Google Patents
Device and method for controlling shaking of dozer blade of wheel excavator Download PDFInfo
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- CN112962696A CN112962696A CN202110198301.XA CN202110198301A CN112962696A CN 112962696 A CN112962696 A CN 112962696A CN 202110198301 A CN202110198301 A CN 202110198301A CN 112962696 A CN112962696 A CN 112962696A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000002689 soil Substances 0.000 claims abstract description 63
- 206010044565 Tremor Diseases 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
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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
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
- E02F3/4075—Dump doors; Control thereof
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- 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
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
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- 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
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
Abstract
The invention provides a device and a method for controlling the shake of a dozer blade of a wheeled excavator, and relates to the technical field of excavators. The device for controlling the vibration of the dozer blade of the wheel type excavator comprises a first hydraulic lock, a second hydraulic lock and a connecting pipeline, wherein the first hydraulic lock is connected with a first oil cylinder, the second hydraulic lock is connected with a second oil cylinder, the first hydraulic lock is connected with the second hydraulic lock through the connecting pipeline, and the opening pressures of the first hydraulic lock and the second hydraulic lock are different. According to the technical scheme, the first hydraulic lock and the second hydraulic lock are set to have different opening pressures, the control over the loads of the first oil cylinder and the second oil cylinder is achieved by controlling the connection and disconnection of the connecting pipeline, the control over the soil shaking mode entering and exiting of the dozer blade is further achieved, and whether soil shaking is carried out or not can be selected according to different working conditions.
Description
Technical Field
The invention relates to the technical field of excavators, in particular to a device and a method for controlling the shaking of a dozer blade of a wheel type excavator.
Background
The wheel type excavator is larger than a dozer blade of a crawler excavator, and when the crawler excavator works, particularly under a wet working condition, the dozer blade is easily stained with soil, so that the working efficiency is greatly reduced, and the problem can be effectively solved through the soil shaking function; under dry working conditions, the soil shaking function is not needed for the dozer blade, so that the comfort of the operation of a driver is greatly reduced by the soil shaking function, and certain energy waste is caused.
Disclosure of Invention
The invention solves the problem of how to make the soil shaking operation of the dozer blade of the wheel type excavator more reasonable.
In order to solve the problems, the invention provides a device for controlling the vibration of a blade of a wheeled excavator, which comprises a first hydraulic lock, a second hydraulic lock and a connecting pipeline, wherein the first hydraulic lock is connected with a first oil cylinder of the blade, the second hydraulic lock is connected with a second oil cylinder of the blade, the first hydraulic lock and the second hydraulic lock are connected through the connecting pipeline, and the opening pressures of the first hydraulic lock and the second hydraulic lock are different; when the connecting pipeline is disconnected, the first oil cylinder and the second oil cylinder have different loads, so that the dozer blade enters a soil shaking mode; when the connecting pipeline is communicated, the first oil cylinder and the second oil cylinder have the same load, so that the dozer blade exits the soil shaking mode.
According to the device for controlling the vibration of the dozer blade of the wheel type excavator, the opening pressures of the first hydraulic lock and the second hydraulic lock are different, the loads of the first oil cylinder and the second oil cylinder are controlled by controlling the connection and disconnection of the connecting pipeline, the dozer blade enters and exits a soil vibration mode, and the dozer blade can be selected to vibrate soil according to different working conditions.
Optionally, the device for controlling the vibration of the dozer blade of the wheel excavator further comprises a pilot switch, the first hydraulic lock comprises a third valve core located at one end of the connecting pipeline, the second hydraulic lock comprises a sixth valve core located at the other end of the connecting pipeline, and the pilot switch is used for controlling the opening degrees of the third valve core and the sixth valve core so as to control the on-off of the connecting pipeline.
According to the device for controlling the vibration of the dozer blade of the wheel type excavator, the opening degree of the third valve core and the opening degree of the sixth valve core are controlled through the pilot switch, so that the strength of a soil vibration mode is controlled, and the free selection of the soil vibration strength under different working conditions is realized.
Optionally, a first small cavity communicating port is formed in the first hydraulic lock, a second small cavity communicating port is formed in the second hydraulic lock, two ends of the connecting pipeline are respectively communicated with the first small cavity communicating port and the second small cavity communicating port, the third valve element is used for controlling the opening and closing state of the first small cavity communicating port, and the sixth valve element is used for controlling the opening and closing state of the second small cavity communicating port.
According to the device for controlling the vibration of the dozer blade of the wheel type excavator, the third valve element is arranged to control the opening and closing state of the communication port of the first small cavity, the sixth valve element is arranged to control the opening and closing state of the communication port of the second small cavity, the control of the dozer blade entering and exiting a soil vibration mode is achieved, and then whether soil vibration is carried out or not can be selected according to different working conditions.
Optionally, the first hydraulic lock includes a first valve core, the second hydraulic lock includes a fourth valve core, the first valve core is used for controlling the first cylinder large cavity to enter and exit oil, and the fourth valve core is used for controlling the second cylinder large cavity to enter and exit oil.
According to the wheel type excavator dozer blade shake control device, the first valve core with the opening controlled by the pressure of the large cavity of the first oil cylinder and the fourth valve core with the opening controlled by the pressure of the large cavity of the second oil cylinder are arranged, so that the oil inlet and outlet of the large cavity of the oil cylinder are effectively controlled.
Optionally, a first large-cavity oil inlet and outlet is formed in the first hydraulic lock, a second large-cavity oil inlet and outlet is formed in the second hydraulic lock, the first valve core is used for controlling the opening and closing state of the first large-cavity oil inlet and outlet, and the fourth valve core is used for controlling the opening and closing state of the second large-cavity oil inlet and outlet.
According to the wheel type excavator dozer blade shake control device, the opening and closing states of the oil inlet and outlet of the first large cavity are controlled through the first valve core, and the opening and closing states of the oil inlet and outlet of the second large cavity are controlled through the fourth valve core, so that effective control over oil inlet and outlet of the large cavity of the oil cylinder is achieved.
Optionally, the first hydraulic lock includes a second valve core, the second hydraulic lock includes a fifth valve core, the second valve core is used for controlling the first cylinder small cavity to enter and exit oil, and the fifth valve core is used for controlling the second cylinder small cavity to enter and exit oil.
According to the device for controlling the vibration of the dozer blade of the wheel type excavator, the second valve core for controlling the oil inlet and outlet of the small cavity of the first oil cylinder and the fifth valve core for controlling the oil inlet and outlet of the small cavity of the second oil cylinder are arranged, so that the dozer blade can be controlled to enter and exit a soil vibration mode, and whether soil vibration is carried out or not can be selected according to different working conditions.
Optionally, a first small cavity oil inlet and outlet is arranged on the first hydraulic lock, a second small cavity oil inlet and outlet is arranged on the second hydraulic lock, the second valve core is used for controlling the opening and closing state of the first small cavity oil inlet and outlet, and the fifth valve core is used for controlling the opening and closing state of the second small cavity oil inlet and outlet.
According to the wheel type excavator dozer blade shaking control device, the opening and closing states of the oil inlet and outlet of the first small cavity are controlled through the second valve core, and the opening and closing states of the oil inlet and outlet of the second small cavity are controlled through the fifth valve core, so that effective control of oil inlet and outlet of the small cavity is achieved.
The invention also provides a wheel type excavator blade shake control method, which is applied to the wheel type excavator blade shake control device and comprises the following steps: disconnecting a connecting pipeline connecting the first hydraulic lock and the second hydraulic lock, wherein the first oil cylinder and the second oil cylinder have different loads so that the dozer blade enters a soil shaking mode; and communicating the connecting pipelines, wherein the loads of the first oil cylinder and the second oil cylinder are the same, so that the dozer blade exits the soil shaking mode.
According to the method for controlling the vibration of the dozer blade of the wheel type excavator, the opening pressures of the first hydraulic lock and the second hydraulic lock are different, the connection and disconnection of the connecting pipeline are controlled through the pilot switch, the control of the dozer blade entering and exiting a soil vibration mode is achieved, and then whether soil vibration is carried out or not can be selected according to different working conditions.
Optionally, the method for controlling blade shake of a wheeled excavator further comprises: by opening the pilot switch, the third spool of the first hydraulic lock or the sixth spool of the second hydraulic lock is closed to disconnect the connecting line; by closing the pilot switch, the third spool and the sixth spool are opened to communicate the connecting line.
According to the method for controlling the shaking of the dozer blade of the wheel type excavator, the opening degree of the third valve core and the opening degree of the sixth valve core are controlled through the pilot switch, so that the intensity of a soil shaking mode is controlled, and the free selection of the soil shaking intensity under different working conditions is realized.
Optionally, the method for controlling blade shake of a wheeled excavator further comprises: when the connecting pipeline is disconnected, the small cavities of the first oil cylinder and the second oil cylinder have different oil inlet and outlet rates, so that the loads of the first oil cylinder and the second oil cylinder are different; when the connecting pipeline is communicated, the small cavity oil inlet and outlet rates of the first oil cylinder and the second oil cylinder are the same, so that the loads of the first oil cylinder and the second oil cylinder are the same.
According to the method for controlling the shaking of the dozer blade of the wheel type excavator, the opening degree of the third valve core and the opening degree of the sixth valve core are controlled through the pilot switch, so that the intensity of a soil shaking mode is controlled, and the free selection of the soil shaking intensity under different working conditions is realized.
Drawings
FIG. 1 is a schematic structural view of a wheel excavator blade shake control apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first hydraulic lock according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second hydraulic lock according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a pipeline connection according to an embodiment of the present invention.
Description of reference numerals:
1-a first hydraulic lock, 11-a first valve core, 12-a second valve core, 13-a third valve core, 14-a first small cavity communicating port, 15-a first large cavity oil inlet and outlet, 16-a first small cavity oil inlet and outlet, 17-a first control pipeline, 18-a first hydraulic lock large cavity and a first oil cylinder small cavity connecting oil port, and 19-a first hydraulic lock large cavity and a first oil cylinder large cavity connecting oil port; 2-a second hydraulic lock, 21-a fourth valve core, 22-a fifth valve core, 23-a sixth valve core, 24-a second small cavity communication port, 25-a second large cavity oil inlet and outlet, 26-a second small cavity oil inlet and outlet, 27-a second control pipeline, 28-a second hydraulic lock large cavity and a first oil cylinder small cavity connection oil port, and 29-a second hydraulic lock large cavity and a first oil cylinder large cavity connection oil port; 3-connecting the pipeline.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1, an embodiment of the present invention provides a device for controlling a blade shake of a wheeled excavator, including a first hydraulic lock 1, a second hydraulic lock 2, and a connecting pipeline 3, where the first hydraulic lock 1 is connected to a first cylinder of the blade, the second hydraulic lock 2 is connected to a second cylinder of the blade, the first hydraulic lock 1 and the second hydraulic lock 2 are connected by the connecting pipeline 3, and opening pressures of the first hydraulic lock 1 and the second hydraulic lock 2 are different; when the connecting pipeline 3 is disconnected, the first oil cylinder and the second oil cylinder have different loads, so that the dozer blade enters a soil shaking mode; when the connecting pipeline 3 is communicated, the loads of the first oil cylinder and the second oil cylinder are the same, so that the dozer blade exits the soil shaking mode.
Specifically, in the embodiment, the device for controlling the shaking of the blade of the wheel excavator comprises a first hydraulic lock 1, a second hydraulic lock 2 and a connecting pipeline 3, wherein the first hydraulic lock 1 is connected with a first oil cylinder of the blade, the second hydraulic lock 2 is connected with a second oil cylinder of the blade, the first oil cylinder and the second oil cylinder are respectively a left oil cylinder and a right oil cylinder of the blade, when the first oil cylinder and the second oil cylinder are different in load, the left side and the right side of the blade are stressed differently, and the blade can shake; the first hydraulic lock 1 and the second hydraulic lock 2 are connected through a connecting pipeline 3, and the connection and disconnection of the connecting pipeline 3 are controlled through a pilot switch to achieve entering and exiting of a soil shaking mode.
As shown in the combined drawing 4, when soil is required to be shaken, the connecting pipeline 3 is controlled to be disconnected, because the two ends of the connecting pipeline 3 are connected with the oil passages of the two hydraulic lock small cavities, the first hydraulic lock 1 is not connected with the second hydraulic lock 2 at the moment, when the dozer blade works, because the opening pressures of the first hydraulic lock 1 and the second hydraulic lock 2 are different, the oil outlet rates of the first oil cylinder and the second oil cylinder are different, the loads of the first oil cylinder and the second oil cylinder are different, the dozer blade is made to shake, the dozer blade enters a soil shaking mode, and soil attached to the dozer blade is effectively removed.
When not trembling soil, the control connecting pipeline 3 communicates, and first hydraulic pressure lock 1 and second hydraulic pressure lock 2 link to each other this moment, and when the dozer blade during operation, the oil production rate of first hydro-cylinder and second hydro-cylinder is the same, and first hydro-cylinder and second hydro-cylinder load are the same, and the dozer blade hydro-cylinder normally works, no longer takes place the shake.
In this embodiment, the opening pressure that sets up first hydraulic pressure lock and second hydraulic pressure lock is different, and intercommunication and disconnection through control connecting line realize the control to first hydro-cylinder and second hydro-cylinder load, and then realize that the dozer blade gets into and exits from the control of trembling native mode, and then can select whether to tremble native according to different operating modes.
Optionally, the device for controlling the vibration of the dozer blade of the wheel excavator further comprises a pilot switch, the first hydraulic lock 1 comprises a third valve element 13 located at one end of the connecting pipeline 3, the second hydraulic lock 2 comprises a sixth valve element 23 located at the other end of the connecting pipeline 3, and the pilot switch is used for controlling the opening degrees of the third valve element 13 and the sixth valve element 23 so as to control the on-off of the connecting pipeline 3.
Specifically, in the present embodiment, as shown in fig. 2 and 3, the first hydraulic lock 1 includes a third spool 13 at one end of the connecting line 3, the second hydraulic lock 2 includes a sixth spool 23 at the other end of the connecting line 3, the pilot switch is used to control the opening degree of the third spool 13 and the sixth spool 23 to control the on/off of the connecting line 3, that is, the opening degree of the third spool 13 is controlled by the first control line 17, and the opening degree of the sixth spool 23 is controlled by the second control line 27, for example, when the pilot switch is opened, the third spool 13 is controlled to be completely closed by the first control line 17, so that the connecting line 3 is closed, when the first hydraulic lock 1 and the second hydraulic lock 2 are not connected, when the dozer blade is operated, the oil discharge rates of the first cylinder and the second cylinder are different due to the different opening pressures of the first hydraulic lock 1 and the second hydraulic lock 2, the first oil cylinder and the second oil cylinder are different in load, so that the dozer blade shakes, the dozer blade enters a soil shaking mode, and soil attached to the dozer blade is effectively removed.
The pilot switch can be arranged in the cab in a key mode and is manually controlled by a driver or automatically controlled to be switched on and off in an automatic mode.
After the pilot switch is turned on, the intensity of the soil shaking mode can be controlled by adjusting the opening degrees of the third valve element 13 and the sixth valve element 23, the intensity of the soil shaking mode is increased as the third valve element 13 and the sixth valve element 23 are closed, and the intensity of the soil shaking mode is maximum when the third valve element 13 and the sixth valve element 23 are completely closed.
In this embodiment, the pilot switch controls the opening degree of the third valve core and the sixth valve core, so as to control the intensity of the soil shaking mode, and realize the free selection of the soil shaking intensity under different working conditions.
Optionally, a first small cavity communication port 14 is provided in the first hydraulic lock 1, a second small cavity communication port 24 is provided in the second hydraulic lock 2, two ends of the connecting pipeline 3 are respectively communicated with the first small cavity communication port 14 and the second small cavity communication port 24, the third valve element 13 is configured to control an open/close state of the first small cavity communication port 14, and the sixth valve element 23 is configured to control an open/close state of the second small cavity communication port 24.
Specifically, in this embodiment, the first hydraulic lock 1 is provided with the first small chamber communication port 14, the second hydraulic lock 2 is provided with the second small chamber communication port 24, both ends of the connecting line 3 are respectively communicated with the first small chamber communication port 14 and the second small chamber communication port 24, the third valve element 13 is used for controlling the open/close state of the first small chamber communication port 14, and the sixth valve element 23 is used for controlling the open/close state of the second small chamber communication port 24, for example, when the pilot switch is opened, the first small chamber communication port 14 is closed by the third valve element 13, and the second small chamber communication port 24 is closed by the sixth valve element 23, so that the control of the soil shaking mode is realized.
The single-rod piston cylinder is an oil cylinder with the largest usage amount, and the movable arm, the bucket rod, the bucket and the dozer blade oil cylinder are all in the form, wherein a rodless cavity is also called as a large cavity, and a rod cavity is also called as a small cavity; the hydraulic lock is provided with a large cavity and a small cavity which correspond to the large cavity and the small cavity of the oil cylinder and are used for controlling the oil inlet and outlet of the large cavity and the small cavity of the oil cylinder.
In this embodiment, the third valve element is arranged to control the opening and closing state of the first small cavity communication port, and the sixth valve element is arranged to control the opening and closing state of the second small cavity communication port, so that the control of the soil shaking mode of the dozer blade entering and exiting is realized, and then whether soil shaking is carried out or not can be selected according to different working conditions.
Optionally, the first hydraulic lock 1 includes a first spool 11, the second hydraulic lock 2 includes a fourth spool 21, the first spool 11 is used to control the first cylinder large chamber to enter and exit oil, and the fourth spool 21 is used to control the second cylinder large chamber to enter and exit oil.
Specifically, in the present embodiment, as shown in fig. 2 and fig. 3, the first hydraulic lock 1 includes a first spool 11, the second hydraulic lock 2 includes a fourth spool 21, the first spool 11 is used to control the first cylinder large chamber to enter and exit oil, the fourth spool 21 is used to control the second cylinder large chamber to enter and exit oil, the first spool 11 controls the opening degree by the first cylinder large chamber pressure, the fourth spool 21 controls the opening degree by the second cylinder large chamber pressure, and by providing the first spool 11 and the fourth spool 21, effective control of the cylinder large chamber to enter and exit oil is achieved.
As shown in fig. 1 and 4, the first hydraulic lock 1 is provided with a first hydraulic lock large cavity and first cylinder small cavity connecting oil port 18 and a first hydraulic lock large cavity and first cylinder large cavity connecting oil port 19, which are used for oil inlet and outlet of the first hydraulic lock 1; the second hydraulic lock 2 is provided with a second hydraulic lock large cavity and first cylinder small cavity connecting oil port 28 and a second hydraulic lock large cavity and first cylinder large cavity connecting oil port 29 for the second hydraulic lock 2 to enter and exit oil.
In the embodiment, effective control of oil inlet and outlet of the large oil cylinder cavity is realized by arranging the first valve core of which the opening degree is controlled by the pressure of the large oil cylinder cavity and the fourth valve core of which the opening degree is controlled by the pressure of the large oil cylinder cavity.
Optionally, the first hydraulic lock 1 is provided with a first large-cavity oil inlet/outlet 15, the second hydraulic lock 2 is provided with a second large-cavity oil inlet/outlet 25, the first valve element 11 is configured to control an open/close state of the first large-cavity oil inlet/outlet 15, and the fourth valve element 21 is configured to control an open/close state of the second large-cavity oil inlet/outlet 25.
Specifically, in this embodiment, as shown in fig. 2, fig. 3 and fig. 4, the first large chamber oil inlet/outlet 15 is arranged on the first hydraulic lock 1, the second large chamber oil inlet/outlet 25 is arranged on the second hydraulic lock 2, the first valve core 11 is used for controlling the open-close state of the first large chamber oil inlet/outlet 15, the fourth valve core 21 is used for controlling the open-close state of the second large chamber oil inlet/outlet 25, the open-close state of the first large chamber oil inlet/outlet 15 is controlled by the first valve core 11, and the open-close state of the second large chamber oil inlet/outlet 25 is controlled by the fourth valve core 21, so that the effective control of oil inlet/outlet of the oil cylinder large chamber is realized.
In this embodiment, the first valve core controls the open-close state of the oil inlet/outlet of the first large cavity, and the fourth valve core controls the open-close state of the oil inlet/outlet of the second large cavity, so as to effectively control the oil inlet/outlet of the large cavity of the oil cylinder.
Optionally, the first hydraulic lock 1 includes a second spool 12, the second hydraulic lock 2 includes a fifth spool 22, the second spool 12 is used for controlling the first cylinder small cavity to enter and exit oil, and the fifth spool 22 is used for controlling the second cylinder small cavity to enter and exit oil.
Specifically, in this embodiment, as shown in fig. 2 and fig. 3, the first hydraulic lock 1 includes a second valve core 12, the second hydraulic lock 2 includes a fifth valve core 22, the second valve core 12 is used to control the first cylinder small cavity to enter and exit oil, and the fifth valve core 22 is used to control the second cylinder small cavity to enter and exit oil, wherein the different opening pressures of the first hydraulic lock 1 and the second hydraulic lock 2 are different, which means that the opening pressures of the second valve core 12 and the fifth valve core 22 are different, so that when the connecting pipeline 3 is disconnected, the oil entering and exiting rates of the first cylinder small cavity and the second cylinder small cavity are different, which causes the first cylinder and the second cylinder to have different loads, and the dozer blade enters the soil shaking mode.
In this embodiment, through setting up the second case that controls first hydro-cylinder loculus business turn over oil and the fifth case that controls second hydro-cylinder loculus business turn over oil, realize the control that the dozer blade got into and exited the mode of trembling soil, and then can select whether to tremble soil according to different operating modes.
Optionally, the first hydraulic lock 1 is provided with a first small cavity oil inlet/outlet 16, the second hydraulic lock 2 is provided with a second small cavity oil inlet/outlet 26, the second valve element 12 is used for controlling the open/close state of the first small cavity oil inlet/outlet 16, and the fifth valve element 22 is used for controlling the open/close state of the second small cavity oil inlet/outlet 26.
Specifically, in this embodiment, the first small cavity oil inlet/outlet 16 is disposed on the first hydraulic lock 1, the second small cavity oil inlet/outlet 26 is disposed on the second hydraulic lock 2, the second valve core 12 is configured to control an open/close state of the first small cavity oil inlet/outlet 16, the fifth valve core 22 is configured to control an open/close state of the second small cavity oil inlet/outlet 26, the open/close state of the first small cavity oil inlet/outlet 16 is controlled by the second valve core 12, and the open/close state of the second small cavity oil inlet/outlet 26 is controlled by the fifth valve core 22, so that effective control of oil inlet/outlet of the small cavity is achieved.
In this embodiment, the opening and closing state of the oil inlet and outlet of the first small cavity is controlled by the second valve core, and the opening and closing state of the oil inlet and outlet of the second small cavity is controlled by the fifth valve core, so that the effective control of the oil inlet and outlet of the small cavity is realized.
Another embodiment of the present invention provides a method for controlling a blade of a wheel excavator, which is applied to the device for controlling the blade of the wheel excavator, and includes: disconnecting a connecting pipeline 3 connecting the first hydraulic lock 1 and the second hydraulic lock 2, wherein the first oil cylinder and the second oil cylinder have different loads, so that the dozer blade enters a soil shaking mode; and communicating the connecting pipeline 3, wherein the loads of the first oil cylinder and the second oil cylinder are the same, so that the dozer blade exits the soil shaking mode.
Specifically, in the present embodiment, the wheel excavator blade shake control method includes: when needs tremble soil, disconnection of control connecting line 3, because connecting line 3 both ends are connected with two hydraulic pressure lock loculus oil circuits, consequently first hydraulic pressure lock 1 and second hydraulic pressure lock 2 are not continuous this moment, when the dozer blade during operation, because the opening pressure of first hydraulic pressure lock 1 and second hydraulic pressure lock 2 is different, make the oil rate of going out of first hydro-cylinder and second hydro-cylinder different, lead to first hydro-cylinder and second hydro-cylinder load different, thereby make the dozer blade produce the shake, the dozer blade gets into and trembles the soil mode, effectively get rid of the earth of adhering to on the dozer blade.
When not trembling soil, the control connecting pipeline 3 communicates, and first hydraulic pressure lock 1 and second hydraulic pressure lock 2 link to each other this moment, and when the dozer blade during operation, the oil production rate of first hydro-cylinder and second hydro-cylinder is the same, and first hydro-cylinder and second hydro-cylinder load are the same, and the dozer blade hydro-cylinder normally works, no longer takes place the shake.
In this embodiment, the opening pressure that sets up first hydraulic pressure lock and second hydraulic pressure lock is different, and intercommunication and disconnection through control connecting line realize that the dozer blade gets into and withdraw from the control of trembling the native mode, and then can select whether to tremble soil according to different operating modes.
Optionally, the method for controlling blade shake of a wheeled excavator further comprises: by opening the pilot switch, the third spool 13 of the first hydraulic lock 1 or the sixth spool 23 of the second hydraulic lock 2 is closed to disconnect the connecting line 3; when the pilot switch is closed, the third spool 13 and the sixth spool 23 are opened to communicate the connection line 3.
Specifically, in this embodiment, the wheel excavator blade shake control method further includes: when the pilot switch is opened, the third spool 13 of the first hydraulic lock 1 or the sixth spool 23 of the second hydraulic lock 2 is controlled to be closed through the first control line 17 and the second control line 27, so that the connection line 3 is disconnected; when the pilot switch is closed, the third spool 13 and the sixth spool 23 are opened to communicate the connecting line 3. For example, when the pilot switch is turned on, the third valve element 13 is controlled to be completely closed through the first control pipeline 17, so that the connecting pipeline 3 is closed, the first hydraulic lock 1 is not connected with the second hydraulic lock 2, when the dozer blade works, because the opening pressures of the first hydraulic lock 1 and the second hydraulic lock 2 are different, the loads of the first oil cylinder and the second oil cylinder are different, the dozer blade shakes, the dozer blade enters a soil shaking mode, and soil attached to the dozer blade is effectively removed.
In this embodiment, the pilot switch controls the opening degree of the third valve core and the sixth valve core, so as to control the intensity of the soil shaking mode, and realize the free selection of the soil shaking intensity under different working conditions.
Optionally, the method for controlling blade shake of a wheeled excavator further comprises: when the connecting pipeline 3 is disconnected, the small cavities of the first oil cylinder and the second oil cylinder have different oil inlet and outlet rates, so that the loads of the first oil cylinder and the second oil cylinder are different; when the connecting pipeline 3 is communicated, the small cavity oil inlet and outlet rates of the first oil cylinder and the second oil cylinder are the same, so that the loads of the first oil cylinder and the second oil cylinder are the same.
Specifically, in this embodiment, the wheel excavator blade shake control method further includes: when the connecting pipeline 3 is disconnected, the small cavities of the first oil cylinder and the second oil cylinder have different oil inlet and outlet rates, so that the loads of the first oil cylinder and the second oil cylinder are different; when the connecting pipeline 3 is communicated, the oil inlet and outlet rates of the small cavities of the first oil cylinder and the second oil cylinder are the same, so that the loads of the first oil cylinder and the second oil cylinder are the same. For example, when the pilot switch is turned on, the third valve element 13 is controlled to be completely closed through the first control pipeline 17, so that the connecting pipeline 3 is closed, the first hydraulic lock 1 is not connected with the second hydraulic lock 2, when the dozer blade works, the oil outlet rates of the first oil cylinder and the second oil cylinder are different due to different opening pressures of the first hydraulic lock 1 and the second hydraulic lock 2, the loads of the first oil cylinder and the second oil cylinder are different, the dozer blade shakes, the dozer blade enters a soil shaking mode, and soil attached to the dozer blade is effectively removed.
In this embodiment, the pilot switch controls the opening degree of the third valve core and the sixth valve core, so as to control the intensity of the soil shaking mode, and realize the free selection of the soil shaking intensity under different working conditions.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to be within the scope of the present disclosure.
Claims (10)
1. A wheeled excavator dozer blade shake control device is characterized by comprising a first hydraulic lock (1), a second hydraulic lock (2) and a connecting pipeline (3), wherein the first hydraulic lock (1) is connected with a first oil cylinder of a dozer blade, the second hydraulic lock (2) is connected with a second oil cylinder of the dozer blade, the first hydraulic lock (1) and the second hydraulic lock (2) are connected through the connecting pipeline (3), and the opening pressures of the first hydraulic lock (1) and the second hydraulic lock (2) are different;
when the connecting pipeline (3) is disconnected, the first oil cylinder and the second oil cylinder have different loads, so that the dozer blade enters a soil shaking mode;
when the connecting pipeline (3) is communicated, the first oil cylinder and the second oil cylinder have the same load, so that the dozer blade exits the soil shaking mode.
2. A wheeled excavator blade shake control apparatus according to claim 1, further comprising a pilot switch, wherein said first hydraulic lock (1) includes a third spool (13) at one end of said connecting line (3), and said second hydraulic lock (2) includes a sixth spool (23) at the other end of said connecting line (3), said pilot switch being adapted to control the opening of said third spool (13) and said sixth spool (23) to control the opening and closing of said connecting line (3).
3. A wheeled excavator blade shake control apparatus according to claim 2, wherein a first small chamber communication port (14) is provided in the first hydraulic lock (1), a second small chamber communication port (24) is provided in the second hydraulic lock (2), both ends of the connecting line (3) are respectively communicated with the first small chamber communication port (14) and the second small chamber communication port (24), the third valve element (13) is used for controlling the open-close state of the first small chamber communication port (14), and the sixth valve element (23) is used for controlling the open-close state of the second small chamber communication port (24).
4. A wheeled excavator blade shake control apparatus according to claim 1 wherein said first hydraulic lock (1) includes a first spool (11) and said second hydraulic lock (2) includes a fourth spool (21), said first spool (11) being adapted to control the ingress and egress of oil from said first cylinder chamber and said fourth spool (21) being adapted to control the ingress and egress of oil from said second cylinder chamber.
5. A wheeled excavator blade shake control apparatus according to claim 4, wherein a first large chamber oil inlet/outlet (15) is provided on the first hydraulic lock (1), a second large chamber oil inlet/outlet (25) is provided on the second hydraulic lock (2), the first valve spool (11) is used for controlling the open/close state of the first large chamber oil inlet/outlet (15), and the fourth valve spool (21) is used for controlling the open/close state of the second large chamber oil inlet/outlet (25).
6. A wheeled excavator blade shake control apparatus according to claim 1 wherein said first hydraulic lock (1) includes a second spool (12) and said second hydraulic lock (2) includes a fifth spool (22), said second spool (12) being adapted to control the ingress and egress of oil from said first cylinder chamber and said fifth spool (22) being adapted to control the ingress and egress of oil from said second cylinder chamber.
7. A wheeled excavator blade shake control apparatus according to claim 6, wherein a first small cavity oil inlet/outlet (16) is provided on the first hydraulic lock (1), a second small cavity oil inlet/outlet (26) is provided on the second hydraulic lock (2), the second valve element (12) is used for controlling the open/close state of the first small cavity oil inlet/outlet (16), and the fifth valve element (22) is used for controlling the open/close state of the second small cavity oil inlet/outlet (26).
8. A wheel excavator blade shake control method applied to the wheel excavator blade shake control apparatus according to any one of claims 1 to 7, comprising:
disconnecting a connecting pipeline (3) connecting the first hydraulic lock (1) and the second hydraulic lock (2), wherein the first oil cylinder and the second oil cylinder have different loads so as to enable the dozer blade to enter a soil shaking mode;
and communicating the connecting pipeline (3), wherein the first oil cylinder and the second oil cylinder have the same load, so that the dozer blade exits the soil shaking mode.
9. The method of controlling blade shake of a wheeled excavator of claim 8 further comprising:
by opening a pilot switch, a third spool (13) of the first hydraulic lock (1) or a sixth spool (23) of the second hydraulic lock (2) is closed to disconnect the connecting line (3);
by closing the pilot switch, the third spool (13) and the sixth spool (23) are opened to communicate the connecting line (3).
10. The method of controlling blade shake of a wheeled excavator of claim 9 further comprising:
when the connecting pipeline (3) is disconnected, the small cavities of the first oil cylinder and the second oil cylinder have different oil inlet and outlet rates, so that the first oil cylinder and the second oil cylinder have different loads;
when the connecting pipeline (3) is communicated, the small cavity oil inlet and outlet rates of the first oil cylinder and the second oil cylinder are the same, so that the loads of the first oil cylinder and the second oil cylinder are the same.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110198301.XA CN112962696B (en) | 2021-02-22 | 2021-02-22 | Device and method for controlling shaking of dozer blade of wheel excavator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110198301.XA CN112962696B (en) | 2021-02-22 | 2021-02-22 | Device and method for controlling shaking of dozer blade of wheel excavator |
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| CN112962696B CN112962696B (en) | 2023-02-03 |
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| CN111531112A (en) * | 2020-04-28 | 2020-08-14 | 黑龙江德沃科技开发有限公司 | Soil shaking chain riveting machine of potato harvester |
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| SU1180462A1 (en) * | 1981-04-01 | 1985-09-23 | Самаркандский Архитектурно-Строительный Институт | Hydraulic drive of vibrated teeth of excavator bucket |
| JP2001026941A (en) * | 1999-07-16 | 2001-01-30 | Sumitomo Constr Mach Co Ltd | End attachment mounting device for construction machine |
| CN2613188Y (en) * | 2003-01-30 | 2004-04-28 | 中国航空救生研究所 | Hydraulic lock |
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| CN112962696B (en) | 2023-02-03 |
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