CN109208672B - Automatic tensioning control system for winch steel wire rope and continuous wall grab bucket machine - Google Patents
Automatic tensioning control system for winch steel wire rope and continuous wall grab bucket machine Download PDFInfo
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- CN109208672B CN109208672B CN201811097085.4A CN201811097085A CN109208672B CN 109208672 B CN109208672 B CN 109208672B CN 201811097085 A CN201811097085 A CN 201811097085A CN 109208672 B CN109208672 B CN 109208672B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/025—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with scraper-buckets, dippers or shovels
Abstract
The invention discloses an automatic tensioning control system for a winch steel wire rope and a continuous wall grab bucket machine, wherein the winch motor control system is used for controlling a motor (1) to rotate forwards and backwards to realize the downward rolling of the steel wire rope; an adjustment device; the adjusting device can send out an adjusting signal when the current steel wire rope tension is smaller than the preset tension; the hoisting motor control system can control the motor (1) to rotate reversely after receiving the adjusting signal. The invention has the following beneficial effects: whether work device takes place the slope can be judged through gathering wire rope's current pulling force, judges that work device takes place the slope when current pulling force is less than predetermineeing the pulling force, sends control signal this moment and makes the motor reversal promote work device until reasonable within range to realize work device's automation and rectified, guaranteed the grooving precision effectively. The correction process can be completed through manual control or automatic control, so that the reliability of the system is improved, the labor intensity is reduced, and the skill requirement is lowered.
Description
Technical Field
The invention belongs to the technical field of engineering machinery, and particularly relates to an automatic tensioning control system for a winch steel wire rope and a continuous wall grab bucket machine.
Background
The underground diaphragm wall equipment is important underground construction grooving equipment, and the main function of the underground diaphragm wall equipment is that two bucket petals are driven to perform opening and closing movement by virtue of the telescopic movement of a main push oil cylinder on a working device, so that the processes of soil unloading and soil grabbing are realized. As shown in fig. 1, in the soil grabbing process, due to the upward thrust generated by the soil layer breaking the bucket, the hoisting steel wire rope of the lifting working device is loosened, so that the bucket body is inclined, and the grooving precision cannot be guaranteed. At present, no effective deviation rectifying means is available for restoring the working device to the correct position.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an automatic tensioning control system for a hoisting steel wire rope and a continuous wall grab bucket machine.
In order to solve the problems of the prior art, the invention discloses an automatic tensioning control system for a hoisting steel wire rope, which comprises:
the winding motor control system is used for controlling the motor to rotate forwards and backwards to realize the lower part and the winding of the steel wire rope;
an adjustment device;
the adjusting device can send out an adjusting signal when the current steel wire rope tension is smaller than the preset tension; the winch motor control system can control the motor to reversely rotate after receiving the adjusting signal.
As a preferred embodiment, it is possible to,
the hoist motor control system includes:
a motor having an oil port A and an oil port B;
a hydraulic pump I having a port P1 and a port T1; and
the control valve I is provided with an oil port a, an oil port A ', an oil port B', an oil port P and an oil port T;
the oil port A 'is connected with the oil port A, the oil port B' is connected with the oil port B, the oil port P is connected with the oil port P1, and the oil port T1 are both connected with an oil tank;
after the oil port a has the pressure oil effect, the oil port A 'is communicated with the oil port P, the oil port B' is communicated with the oil port T, and the hydraulic pump I pumps oil to the oil port A to drive the motor to rotate reversely; when the oil port a has no pressure oil, the oil port P, the oil port B ', the oil port A' and the oil port T are not communicated with each other;
the adjusting device comprises:
a hydraulic pump II having a port P2 and a port T2;
a control valve II having a signal input Y1, port A' and port P3;
a tension detector; and
the controller is provided with a signal input end I1, a signal output end O1 and a tension judging module;
the oil port A' is connected with the oil port a, the oil port P3 is connected with the oil port P2, and the oil port T2 is connected with the oil tank; the signal output end of the tension detector is connected with the signal input end I1 and used for sending a current steel wire rope tension signal to the controller, and the signal output end O1 is connected with the signal input end Y1;
the tension judging module can send out a current signal after judging that the current steel wire rope tension is smaller than the preset tension, the oil port A' is communicated with the oil port P3 after the current signal is input by the signal input end Y1, and the control valve II outputs pressure oil and acts on the oil port a; when no signal is input from the signal input end Y1, the oil port A' and the oil port P3 are not communicated, and no pressure oil is output from the control valve II.
As a preferred embodiment, it is possible to,
the hoist motor control system further includes:
a pilot operated handle having an operation input part N2, a port P4, and a port C2; and
a shuttle valve II having an oil port a ', an oil port b ' and an oil port c ';
the oil port P4 is connected with the oil port P2, the oil port C2 is connected with the oil port b ', the oil port A' is connected with the oil port a ', the oil port C' is connected with the oil port a, and the oil port T2 is connected with an oil tank;
after the action input part N2 inputs action, the oil port P4 is communicated with the oil port C2, and the hydraulic control handle outputs pressure oil and acts on the oil port a; when the operation input part N2 is not operated, the port P4 and the port C2 are not communicated, and the pilot operated handle outputs no pressure oil.
As a preferred embodiment, it is possible to,
the hydraulic control handle is also provided with an action input part N1 and an oil port C1; the control valve I is also provided with an oil port b;
when the control valve I is provided with an oil port b, the oil port C1 is connected with the oil port b; when the oil port B is acted by pressure oil, the oil port A 'is communicated with the oil port T, the oil port B' is communicated with the oil port P, and the hydraulic pump I pumps the oil to the oil port B to drive the motor to rotate forwards;
after the action input part N1 inputs action, the oil port P4 is communicated with the oil port C1, and the hydraulic control handle outputs pressure oil and acts on the oil port b; when the operation input portion N2 is not operated, no pressure oil is output from the pilot operated lever.
As a preferred embodiment, it is possible to,
the hoist motor control system further includes:
the shuttle valve I is provided with an oil port a ', an oil port b ' and an oil port c '; and
a pressure switch having a detection port;
the controller is also provided with a signal input end I2, the signal input end I2 is connected with a signal output end of the pressure switch, an oil port a ' is connected with an oil port C2, an oil port b ' is connected with an oil port C1, and an oil port C ' is connected with a detection port.
As a preferred embodiment, it is possible to,
the hoist motor control system includes:
a motor having an oil port A and an oil port B;
a hydraulic pump I having a port P1 and a port T1; and
the control valve I is provided with a signal input end I2, an oil port A ', an oil port B', an oil port P and an oil port T;
the oil port A 'is connected with the oil port A, the oil port B' is connected with the oil port B, the oil port P is connected with the oil port P1, and the oil port T1 are both connected with an oil tank;
after a signal is input at the signal input end I2, the oil port A 'is communicated with the oil port P, the oil port B' is communicated with the oil port T, and the hydraulic pump I pumps oil to the oil port A to drive the motor to rotate reversely; when the signal input end I2 has no signal to be transmitted, the oil port P, the oil port B ', the oil port A' and the oil port T are not communicated with each other;
the adjusting device comprises:
a tension detector; and
the controller is provided with a signal input end I1, a signal output end O1 and a tension judging module;
the signal output end O1 is connected with the signal input end I2; the signal output end of the tension detector is connected with the signal input end I1 and is used for sending the current steel wire rope tension signal to the controller;
the tension judging module can send a current signal to the signal input end I2 after judging that the current steel wire rope tension is smaller than the preset tension.
As a preferred embodiment, it is possible to,
the controller also has a signal output O2; the control valve I is also provided with a signal input end I3, and a signal output end O2 is connected with the signal input end I3; after a signal input end I3 inputs a forward rotation signal sent by the controller, an oil port A 'is communicated with an oil port T, and an oil port B' is communicated with an oil port P; the hydraulic pump I pumps oil to the oil port B to drive the motor to rotate forwards.
As a preferred embodiment, it is possible to,
the controller also comprises a safety condition judgment module, and the safety condition judgment module can acquire the current working condition and send a control signal to enable the tension judgment module to work after the safety condition is met.
The invention also discloses a continuous wall grab bucket machine, which comprises: the automatic tensioning control system for the hoisting steel wire rope.
The invention has the following beneficial effects: whether work device takes place the slope can be judged through gathering wire rope's current pulling force, judges that work device takes place the slope when current pulling force is less than predetermineeing the pulling force, sends control signal this moment and makes the motor reversal promote work device until reasonable within range to realize work device's automation and rectified, guaranteed the grooving precision effectively. The correction process can be completed through manual control or automatic control, so that the reliability of the system is improved, the labor intensity is reduced, and the skill requirement is lowered.
Drawings
FIG. 1 is a construction state diagram of the present invention;
FIG. 2 is a diagram of a control system according to a first embodiment of the present invention;
FIG. 3 is a diagram of a control system according to a second embodiment of the present invention;
FIG. 4 is a diagram of a control system according to a third embodiment of the present invention;
FIG. 5 is a system flow diagram of the present invention;
FIG. 6 is a graph showing the relationship between the control current of the signal input terminal Y1 and the tension difference of the wire rope.
Reference numerals:
1, a motor; 2, controlling a valve I; 3, a shuttle valve II; 4, a hydraulic pump I; 5, a hydraulic control handle; 6, a pressure switch; 7, a shuttle valve I; 8, controlling a valve II; 9, a hydraulic pump II; 10 a controller; 11 a tension detector.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, a continuous wall grab bucket machine mainly comprises a winch and a grab bucket working device, wherein the winch is connected with the grab bucket working device through a steel wire rope, and the winch is driven by a motor 1 to realize the descending and lifting of the grab bucket working device. When soil grabbing is carried out, the grab bucket working device descends to an appointed position, the main push oil cylinder works to close the bucket flap, the bucket body is inclined in the process, and accordingly the tensile force of the steel wire rope is changed.
Example one
As shown in fig. 2, in this embodiment, the inclination of the bucket body is mainly corrected in an automatic control manner, and the control system includes a hoisting motor control system for controlling the motor to rotate forward and backward to realize the downward winding and the winding of the steel wire rope; and an adjustment device; the adjusting device can send out an adjusting signal when the current steel wire rope tension is smaller than the preset tension; the winch motor control system can control the motor to reversely rotate after receiving the adjusting signal. The hoist motor control system includes: the hydraulic pump comprises a motor 1, a hydraulic pump I4 and a control valve I2; the adjusting device comprises: a hydraulic pump II 9, a control valve II 8, a tension detector 11 and a controller 10.
The motor 1 is provided with an oil port A and an oil port B; the hydraulic pump I4 is provided with an oil port P1 and an oil port T1; the control valve I2 is provided with an oil port a, an oil port A ', an oil port B', an oil port P and an oil port T; the hydraulic pump II 9 is provided with an oil port P2 and an oil port T2; the control valve II 8 is provided with a signal input end Y1, an oil port A' and an oil port P3; the tension detector 11 is used for collecting the current tension of the steel wire rope; the controller 10 has a signal input terminal I1, a signal output terminal O1, a tension judging module, and a safety condition judging module. The safety condition judgment module can respectively collect the pressure value, the construction state signal, the winch upgrading pilot signal, the safety handle opening signal and the like of the main push oil cylinder, then carries out logic processing according to the collected data, and finally sends a control signal to the tension judgment module to enable the tension judgment module to work, and the tension judgment module judges the current steel wire rope tension and the preset tension value and sends a control signal to the signal input end Y1 according to the judgment result.
The oil port A 'is connected with the oil port A, the oil port B' is connected with the oil port B, the oil port P is connected with the oil port P1, and the oil port T1 are both connected with an oil tank; the oil port A' is connected with the oil port a, the oil port P3 is connected with the oil port P2, and the oil port T2 is connected with the oil tank; collector 11 is connected to signal input I1 and signal output O1 is connected to signal input Y1.
The control valve I2 is provided with a first position and a second position, when the control valve I2 is positioned at the first position, the oil port A 'is communicated with the oil port P, and the oil port B' is communicated with the oil port T; when the control valve I2 is in the second position, the oil port P, the oil port B ', the oil port A' and the oil port T are not communicated with each other.
When a signal is input from the signal input end Y1, the oil port A' is communicated with the oil port P3, and the control valve I2 is in a first position; when the signal input end Y1 loses power, the oil port A' and the oil port P3 are not communicated, and the control valve I2 is in the second position.
The working principle and the process of the control system are as follows:
as shown in fig. 5, when the grab bucket grabs soil, the safety condition determining module in the controller 10 determines whether the current equipment meets the safety condition, and if not, the program is stopped without adjustment; if the current tension F of the steel wire rope is met, the tension detector 11 collects the tension F of the steel wire rope at the momentXThe tension judging module in the controller 10 calculates the preset pressure F of the current steel wire rope0With the current tension FXIf the tension difference delta F is less than or equal to 0, the procedure is terminated; if Δ F > 0, the controller 10 outputs a control current to the signal input terminal Y1, and the control valve ii 8 is opened. Hydraulic pump IIThe pressure oil pumped out by the pump 9 enters the oil port a of the control valve I2 through the control valve II 8 to enable the control valve I2 to be in the first position, at the moment, the oil port A 'is communicated with the oil port P, and the oil port B' is communicated with the oil port T. Pressure oil that hydraulic pump I4 was pumped gets into motor 1's hydraulic fluid port A through control valve I2, then returns the oil tank through hydraulic fluid port B, and this process makes motor 1 work drive bucket body rise. And when the tension of the steel wire rope is increased to delta F less than or equal to 0, the control valve I2 is restored to the second position. The process continuously circulates to realize the automatic correction of the bucket body.
The safety conditions include: whether the grab bucket machine is in a construction mode, whether the bucket flap is closed, whether a hoisting system has a lifting pilot signal, and whether a safety handle is opened; the above information is collected through different collecting ports, and is judged by a safety condition judging module in the controller 10. Only when the equipment is in a construction mode, the bucket flap is closed, the winch has no lifting pilot signal, the safety handle is opened and the like, the safety condition is met, otherwise, the safety condition is not met.
As a supplement example of the first embodiment, the control valve I2 further has a signal input end I3, the controller 10 has a signal output end O2, the signal output end O2 is electrically connected to the signal input end I3, the signal output end O2 sends a signal to enable the signal input end I3 to be powered on, so as to control the control valve I2 to be in the third position, at this time, the oil port a 'is communicated with the oil port T, the oil port B' is communicated with the oil port P, and at this time, the motor 1 rotates forward.
In this embodiment, the control mode of the control valve i2 is electro-hydraulic hybrid control, and the control signal is the pressure of the pressure oil pumped by the hydraulic pump ii 9 and an electrical signal sent by the controller 10. The control valve II 8 is a proportional valve and is also provided with an oil port T3, and the oil port T3 is connected with an oil tank for oil return. As shown in FIG. 6, the proportional valve can control the pressure oil according to the current, and control the current IXProportional relation with the tension difference delta F, the larger the tension difference delta F is, the larger the proportional valve control current IXThe larger.
Example two
As shown in fig. 3, the difference from the first embodiment is that the forward and reverse rotation of the motor 1 can be controlled manually in this embodiment. The winch motor control system further comprises a hydraulic control handle 5 and a shuttle valve II 3.
The hydraulic control handle 5 is provided with an action input part N2, an oil port P4 and an oil port C2; the shuttle valve ii 3 has an oil port a ', an oil port b ', and an oil port c '. The oil port P4 is connected with the oil port P2, the oil port C2 is connected with the oil port b ', the oil port A' is connected with the oil port a ', the oil port C' is connected with the oil port a, and the oil port T2 is connected with an oil tank.
When the action input part N2 is operated, the oil port P4 is communicated with the oil port C2, and the control valve I2 is in a first position; when the operation input portion N2 is not operated, the port P4 and the port C2 are not communicated, and the control valve i2 is at the second position. When a signal is input from the signal input end Y1, the oil port A' is communicated with the oil port P3, and the control valve I2 is in a first position; when the signal input end Y1 loses power, the oil port A' and the oil port P3 are not communicated, and the control valve I2 is in the second position.
The control method in this embodiment is the same as that in the first embodiment, and therefore, will not be described again.
As a preferable example of the second embodiment, the pilot operated handle 5 is used as a pilot oil source, and therefore, the hydraulic control handle further includes an oil port T4, and the oil port T4 is connected to an oil tank to return oil.
As a supplementary example of the second embodiment, the pilot operated handle 5 further includes an operation input portion N1 and a port C1; the control valve I2 is also provided with an oil port b; the oil port C1 is connected with the oil port b; the control valve I2 also has a third position in which port A 'is in communication with port T and port B' is in communication with port P. When the motion input part N1 is operated, the oil port P4 is communicated with the oil port C1, and the control valve I2 is in a third position; when the operation input portion N2 is not operated, the port P4 and the port C2 are not communicated, and the control valve i2 is at the second position. The manual control of the two processes of ascending and descending of the bucket body can be completely realized through the control.
As a preferable example of the second embodiment, the hoisting motor control system further comprises a shuttle valve i 7 and a pressure switch 6, wherein the shuttle valve i 7 is provided with an oil port a ", an oil port b" and an oil port c "; the pressure switch 7 has a detection port. The controller 10 further has a signal input terminal I2, the signal input terminal I2 is connected with the signal output terminal of the pressure switch 7, the oil port a "is connected with the oil port C2, the oil port b" is connected with the oil port C1, and the oil port C "is connected with the detection port. The pilot pressure is detected through the pressure switch 7, so that the collection and judgment of whether the lifting pilot signal exists in the hoisting system under the safety condition are realized. The pilot operated handle 5 is a pilot operated handle controller, and the operation input part N1 and the operation input part N2 are different operation handles.
In the same way as in the first embodiment, the control mode of the control valve i2 is still pilot-controlled.
EXAMPLE III
As shown in fig. 4, the difference from the first embodiment is that in the present embodiment, the hoisting motor control system includes a motor 1, a hydraulic pump i 4, and a control valve i 2; the adjusting means comprises a tension detector 11 and a controller 10. The motor 1 is provided with an oil port A and an oil port B; the hydraulic pump I4 is provided with an oil port P1 and an oil port T1; the control valve I2 is provided with a signal input end I2, an oil port A ', an oil port B', an oil port P and an oil port T; the tension detector 11 is used for collecting the tension of the steel wire rope; the controller 10 has a signal input terminal I1, a signal output terminal O1, a tension judging module, and a safety condition judging module.
The oil port A 'is connected with the oil port A, the oil port B' is connected with the oil port B, the oil port P is connected with the oil port P1, and the oil port T1 are both connected with the oil tank. The control valve I2 is provided with a first position and a second position, when the control valve I2 is positioned at the first position, the oil port A 'is communicated with the oil port P, and the oil port B' is communicated with the oil port T; when the control valve I2 is in the second position, the oil port P, the oil port B ', the oil port A' and the oil port T are not communicated with each other.
The signal output end O1 is connected with the signal input end I2; the tension detector 11 is connected with a signal input end I1; after the signal input end I1 inputs the tension signal, the tension judging module in the controller 10 judges the magnitude of the current tension and the preset tension, and when the current tension is smaller than the preset tension, the signal output end O1 sends a control signal to the signal input end I2, and at this time, the control valve I2 is in the first position; otherwise, the signal input end I2 has no signal input, and the control valve I2 is in the second position. Therefore, the control valve I2 is an electric control valve, and the control valve directly commutates through an electric signal to realize the lifting control of the bucket body.
As a complement to the third embodiment, the controller 10 further has a signal output terminal O2; the control valve I2 is also provided with a signal input end I3, and a signal output end O2 is connected with the signal input end I3; the control valve I2 is also provided with a third position, when the control valve I is positioned at the third position, the oil port A 'is communicated with the oil port T, and the oil port B' is communicated with the oil port P; after the signal input end I1 inputs a forward rotation signal, the control valve I2 is in a third position, and the motor 1 rotates forward to enable the working device to descend.
In this embodiment, the control mode of the control valve i2 is electric control, and the control signal is an electric signal sent by the controller 10.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A hoist wire rope automatic tension control system comprises:
the winding motor control system is used for controlling the motor (1) to rotate forward and backward to realize the lower part and the winding of the steel wire rope;
the method is characterized in that: further comprising:
an adjustment device;
the adjusting device can send out an adjusting signal when the current steel wire rope tension is smaller than the preset tension; the hoisting motor control system can control the motor (1) to rotate reversely after receiving the adjusting signal;
the adjusting device comprises:
a hydraulic pump ii (9) having a port P2 and a port T2;
a control valve II (8) having a signal input Y1, port A' and port P3;
a tension detector (11); and
the controller (10) is provided with a signal input end I1, a signal output end O1 and a tension judging module;
the oil port A' is connected with the oil port a, the oil port P3 is connected with the oil port P2, and the oil port T2 is connected with the oil tank; the signal output end of the tension detector (11) is connected with the signal input end I1 and used for sending a current steel wire rope tension signal to the controller (10), and the signal output end O1 is connected with the signal input end Y1;
the tension judging module can send a current signal after judging that the current steel wire rope tension is smaller than a preset tension, the oil port A' is communicated with the oil port P3 after the current signal is input by the signal input end Y1, and the control valve II (8) has pressure oil output and acts on the oil port a; when no signal is input into the signal input end Y1, the oil port A' is not communicated with the oil port P3, and no pressure oil is output from the control valve II (8).
2. The automatic tensioning control system for the hoisting steel wire rope according to claim 1, wherein:
the hoist motor control system includes:
a motor (1) having an oil port A and an oil port B;
a hydraulic pump I (4) having a port P1 and a port T1; and
a control valve I (2) which is provided with an oil port a, an oil port A ', an oil port B', an oil port P and an oil port T;
the oil port A 'is connected with the oil port A, the oil port B' is connected with the oil port B, the oil port P is connected with the oil port P1, and the oil port T1 are both connected with an oil tank;
after the oil port a has the pressure oil effect, the oil port A 'is communicated with the oil port P, the oil port B' is communicated with the oil port T, and the hydraulic pump I (4) pumps oil to the oil port A to drive the motor (1) to rotate reversely; when the oil port a has no pressure oil, the oil port P, the oil port B ', the oil port A' and the oil port T are not communicated with each other.
3. The automatic tensioning control system for the hoisting steel wire rope according to claim 2, wherein:
the hoist motor control system further includes:
a pilot operated handle (5) having an operation input part N2, a port P4, and a port C2; and
a shuttle valve II (3) having an oil port a ', an oil port b ' and an oil port c ';
the oil port P4 is connected with the oil port P2, the oil port C2 is connected with the oil port b ', the oil port A' is connected with the oil port a ', the oil port C' is connected with the oil port a, and the oil port T2 is connected with the oil tank;
after the action input part N2 inputs action, the oil port P4 is communicated with the oil port C2, and the hydraulic control handle (5) outputs pressure oil and acts on the oil port a; when the operation input part N2 is not operated, the oil port P4 and the oil port C2 are not communicated, and the pilot operated handle (5) does not output pressure oil.
4. The automatic tensioning control system for the hoisting steel wire rope according to claim 3, wherein:
the hydraulic control handle (5) is also provided with an action input part N1 and an oil port C1; the control valve I (2) is also provided with an oil port b;
when the control valve I (2) is provided with an oil port b, the oil port C1 is connected with the oil port b; when the oil port B is acted by pressure oil, the oil port A 'is communicated with the oil port T, the oil port B' is communicated with the oil port P, and the hydraulic pump I (4) pumps the oil to the oil port B to drive the motor (1) to rotate forwards;
after the action input part N1 inputs action, the oil port P4 is communicated with the oil port C1, and the hydraulic control handle (5) outputs pressure oil and acts on the oil port b; when the operation input part N2 is not operated, no pressure oil is output from the pilot operated handle (5).
5. The automatic tensioning control system for the hoisting steel wire rope according to claim 4, wherein:
the hoist motor control system further includes:
a shuttle valve I (7) which is provided with an oil port a ', an oil port b ' and an oil port c '; and
a pressure switch (7) having a detection port;
the controller (10) is further provided with a signal input end I2, the signal input end I2 is connected with a signal output end of the pressure switch (7), the oil port a ' is connected with the oil port C2, the oil port b ' is connected with the oil port C1, and the oil port C ' is connected with the detection port.
6. A hoist wire rope automatic tension control system comprises:
the winding motor control system is used for controlling the motor (1) to rotate forward and backward to realize the lower part and the winding of the steel wire rope;
the method is characterized in that: further comprising:
an adjustment device;
the adjusting device can send out an adjusting signal when the current steel wire rope tension is smaller than the preset tension; the hoisting motor control system can control the motor (1) to rotate reversely after receiving the adjusting signal;
the adjusting device comprises:
a tension detector (11); and
the controller (10) is provided with a signal input end I1, a signal output end O1 and a tension judging module;
the signal output end O1 is connected with the signal input end I2; the signal output end of the tension detector (11) is connected with the signal input end I1 and used for sending a current steel wire rope tension signal to the controller (10);
the tension judging module can send a current signal to the signal input end I2 after judging that the current steel wire rope tension is smaller than the preset tension.
7. The automatic tensioning control system for the hoisting steel wire rope according to claim 6, wherein:
the hoist motor control system includes:
a motor (1) having an oil port A and an oil port B;
a hydraulic pump I (4) having a port P1 and a port T1; and
the control valve I (2) is provided with a signal input end I2, an oil port A ', an oil port B', an oil port P and an oil port T;
the oil port A 'is connected with the oil port A, the oil port B' is connected with the oil port B, the oil port P is connected with the oil port P1, and the oil port T1 are both connected with an oil tank;
after a signal is input into the signal input end I2, the oil port A 'is communicated with the oil port P, the oil port B' is communicated with the oil port T, and the hydraulic pump I (4) pumps oil to the oil port A to drive the motor (1) to rotate reversely; when the signal input end I2 has no signal input, the oil port P, the oil port B ', the oil port A' and the oil port T are not communicated with each other.
8. The automatic tensioning control system for the hoisting steel wire rope according to claim 7, wherein:
the controller (10) further has a signal output O2; the control valve I (2) is also provided with a signal input end I3, and the signal output end O2 is connected with the signal input end I3; after the signal input end I3 inputs a forward rotation signal sent by the controller (10), the oil port A 'is communicated with the oil port T, and the oil port B' is communicated with the oil port P; and the hydraulic pump I (4) pumps oil to the oil port B to drive the motor (1) to rotate forwards.
9. The automatic tensioning control system for the hoisting steel wire rope according to any one of claims 2 to 8, wherein:
the controller (10) further comprises a safety condition judgment module, and the safety condition judgment module can acquire the current working condition and send a control signal to enable the tension judgment module to work after the safety condition is met.
10. The utility model provides a continuous wall grab bucket machine which characterized in that:
comprising a hoisting rope automatic tensioning control system according to claim 1 or 6.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097085.4A CN109208672B (en) | 2018-09-20 | 2018-09-20 | Automatic tensioning control system for winch steel wire rope and continuous wall grab bucket machine |
| PCT/CN2019/097778 WO2020057254A1 (en) | 2018-09-20 | 2019-07-25 | Hoisting steel wire rope automatic tensioning control system and diaphragm wall grab bucket machine |
| SG11202102843PA SG11202102843PA (en) | 2018-09-20 | 2019-07-25 | Automatic tensioning control system for hoisting wire rope and diaphragm wall grab machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097085.4A CN109208672B (en) | 2018-09-20 | 2018-09-20 | Automatic tensioning control system for winch steel wire rope and continuous wall grab bucket machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109208672A CN109208672A (en) | 2019-01-15 |
| CN109208672B true CN109208672B (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811097085.4A Active CN109208672B (en) | 2018-09-20 | 2018-09-20 | Automatic tensioning control system for winch steel wire rope and continuous wall grab bucket machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109208672B (en) |
| SG (1) | SG11202102843PA (en) |
| WO (1) | WO2020057254A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208672B (en) * | 2018-09-20 | 2020-11-24 | 徐州徐工基础工程机械有限公司 | Automatic tensioning control system for winch steel wire rope and continuous wall grab bucket machine |
| CN110805088A (en) * | 2019-11-12 | 2020-02-18 | 江苏徐工工程机械研究院有限公司 | Underground continuous wall construction device |
| CN114476995B (en) * | 2022-01-07 | 2022-12-30 | 北京三一智造科技有限公司 | Double-winch hydraulic control system, operating machine and control method |
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|---|---|---|---|---|
| US3897640A (en) * | 1971-05-12 | 1975-08-05 | Cmi Corp | Excavator, conveyor and conveyor control apparatus |
| EP1288376A2 (en) * | 2001-08-31 | 2003-03-05 | Vermeer Manufacturing Company | Excavation apparatus |
| CN101666106A (en) * | 2009-09-21 | 2010-03-10 | 北京市三一重机有限公司 | Continuous wall grab chute forming machine |
| CN105113563A (en) * | 2015-08-14 | 2015-12-02 | 徐州徐工基础工程机械有限公司 | Double winch control system of continuous wall grab bucket and control method of double winch control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0141054B1 (en) * | 1994-10-11 | 1999-02-18 | 송경섭 | Device for tensing wire in prestressed concrete work |
| JP4602263B2 (en) * | 2006-02-17 | 2010-12-22 | 株式会社関電工 | Method of moving overhead transmission lines while constantly applying a constant load |
| CN202370020U (en) * | 2011-11-24 | 2012-08-08 | 北京市三一重机有限公司 | Continuous wall grabbing machine pipe rolling device reel transmission mechanism and continuous wall grabbing machine |
| CN103523701B (en) * | 2013-10-28 | 2016-04-13 | 北京南车时代机车车辆机械有限公司 | Multireel raises synchronous control method and control system |
| CN204099302U (en) * | 2014-09-01 | 2015-01-14 | 北京市三一重机有限公司 | Rotary drilling rig master winch floating type controlled system and rotary drilling rig |
| CN109208672B (en) * | 2018-09-20 | 2020-11-24 | 徐州徐工基础工程机械有限公司 | Automatic tensioning control system for winch steel wire rope and continuous wall grab bucket machine |
-
2018
- 2018-09-20 CN CN201811097085.4A patent/CN109208672B/en active Active
-
2019
- 2019-07-25 SG SG11202102843PA patent/SG11202102843PA/en unknown
- 2019-07-25 WO PCT/CN2019/097778 patent/WO2020057254A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3897640A (en) * | 1971-05-12 | 1975-08-05 | Cmi Corp | Excavator, conveyor and conveyor control apparatus |
| EP1288376A2 (en) * | 2001-08-31 | 2003-03-05 | Vermeer Manufacturing Company | Excavation apparatus |
| CN101666106A (en) * | 2009-09-21 | 2010-03-10 | 北京市三一重机有限公司 | Continuous wall grab chute forming machine |
| CN105113563A (en) * | 2015-08-14 | 2015-12-02 | 徐州徐工基础工程机械有限公司 | Double winch control system of continuous wall grab bucket and control method of double winch control system |
Also Published As
| Publication number | Publication date |
|---|---|
| SG11202102843PA (en) | 2021-04-29 |
| WO2020057254A1 (en) | 2020-03-26 |
| CN109208672A (en) | 2019-01-15 |
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