CN107386649B - Anti-sliding cylinder control method and control system of concrete pump truck - Google Patents
Anti-sliding cylinder control method and control system of concrete pump truck Download PDFInfo
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- CN107386649B CN107386649B CN201710640682.6A CN201710640682A CN107386649B CN 107386649 B CN107386649 B CN 107386649B CN 201710640682 A CN201710640682 A CN 201710640682A CN 107386649 B CN107386649 B CN 107386649B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
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Abstract
The invention discloses a concrete pump truck cylinder slipping prevention control method and a control system, wherein the concrete pump truck cylinder slipping prevention control method comprises the following steps: receiving signals: judging whether a shutdown signal is received or not, and if so, entering the next step; and (3) connecting an S valve: and (4) after the S valve of the concrete pump truck is communicated with a material port of a concrete cylinder full of materials, stopping the concrete pump truck. After the stop signal is received, the concrete pump truck is not stopped, but the S valve of the concrete pump truck is communicated with a material port of a concrete cylinder full of materials, and then the concrete pump truck is stopped. After the S valve of the concrete pump truck is communicated with the material port of the concrete cylinder full of materials, no space exists in the concrete cylinder full of materials for containing the concrete flowing backwards, the concrete can not flow backwards to the concrete cylinder through the S valve at the moment, the phenomenon that the concrete slides backwards after the concrete pump truck is shut down is thoroughly avoided, and then the concrete capable of flowing backwards pushes the water in the concrete piston and the concrete cylinder to return to the water tank, so that the water overflow condition is caused.
Description
Technical Field
The invention relates to the technical field of pump trucks, in particular to a control method and a control system for preventing a concrete pump truck from sliding down.
Background
The pumping system of the concrete pump truck comprises a plurality of groups of feeding assemblies, each group of feeding assemblies comprises a concrete cylinder, a concrete piston, a main oil cylinder and a piston, wherein the concrete piston is arranged in the concrete cylinder, the piston is arranged in the main oil cylinder, and the piston slides in the main oil cylinder to drive the concrete piston to slide in the concrete cylinder so as to suck or push concrete into or out of the concrete cylinder. When the concrete is sucked, the material port of the concrete cylinder is communicated with the hopper, and when the concrete is pushed out, the material port of the concrete cylinder is communicated with the S valve. One end of the concrete cylinder is a material port, a water tank is arranged between the other end of the concrete cylinder and the main oil cylinder, the water tank is communicated with the interior of the concrete cylinder, the concrete piston can move into the water tank, and when the concrete piston pushes out concrete, water in the water tank can flow into the concrete cylinder so as to clean and cool the interior of the concrete cylinder.
The multiple groups of feeding assemblies have the same structure and work alternately, namely when one group of feeding assemblies is connected with the S valve to push out concrete, the other groups suck or are full of the concrete. The concrete cylinders of the plurality of groups of feeding assemblies are communicated with the water tank.
In the prior art, when a pumping system is stopped, if the material loading position is high, concrete in the conveying pipe flows back to the concrete cylinder through the S valve, and the flowing back concrete pushes the concrete piston and water in the concrete cylinder to return to the water tank, so that the water overflows.
In summary, how to effectively prevent concrete from flowing backwards to cause water to overflow out of the water tank is a problem that needs to be solved urgently by those skilled in the art at present.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a method for controlling an anti-slip cylinder of a concrete pump truck, which can effectively prevent water from overflowing a water tank due to backflow of concrete, and a second object of the present invention is to provide a system for controlling an anti-slip cylinder of a concrete pump truck.
In order to achieve the first object, the invention provides the following technical scheme:
an anti-sliding cylinder control method of a concrete pump truck comprises the following steps:
receiving signals: judging whether a shutdown signal is received or not, and if so, entering the next step;
and (3) connecting an S valve: and (4) after the S valve of the concrete pump truck is communicated with a material port of a concrete cylinder full of materials, stopping the concrete pump truck.
Preferably, in the method for controlling cylinder slipping prevention of the concrete pump truck, the concrete pump truck includes two groups of feeding assemblies, namely a first feeding assembly and a second feeding assembly, the first feeding assembly includes a first concrete cylinder, the second feeding assembly includes a second concrete cylinder, and the step S valve connection specifically includes:
if the S valve is communicated with one of the first concrete cylinder and the second concrete cylinder when a stop signal is received, judging whether the other one of the first concrete cylinder and the second concrete cylinder is filled with materials or not, if so, switching the S valve to be communicated with a material port of the other one of the first concrete cylinder and the second concrete cylinder and then stopping, otherwise, waiting until the other one of the first concrete cylinder and the second concrete cylinder is filled with materials and switching the S valve to be communicated with the other one of the first concrete cylinder and the second concrete cylinder and then stopping.
Preferably, in the anti-sliding cylinder control method for the concrete pump truck, if the S valve is communicated with the first concrete cylinder when a stop signal is received, the S valve is switched to be communicated with the second concrete cylinder after the material in the first concrete cylinder is completely pushed out and the second concrete cylinder is filled with the material;
and if the S valve is communicated with the second concrete cylinder when a stop signal is received, switching the S valve to be communicated with the first concrete cylinder after the material in the second concrete cylinder is completely pushed out and the first concrete cylinder is filled with the material.
Preferably, in the anti-slip cylinder control method for the concrete pump truck, when the piston of the feeding assembly is located at the end of the oil cylinder, which is far away from the concrete cylinder, it is determined that the concrete cylinder of the feeding assembly is filled with materials;
and when the piston of the feeding assembly is positioned at the end part of the oil cylinder close to the concrete cylinder, judging that the material in the concrete cylinder of the feeding assembly is completely discharged.
An anti-sliding cylinder control system of a concrete pump truck comprises:
a controller for receiving a shutdown signal;
the sensor is in signal connection with the controller and is used for detecting whether a concrete cylinder of the feeding assembly of the concrete pump truck is filled with materials or not;
and the controller can control the change-over switch to switch the S valve of the concrete pump truck to be communicated with any concrete cylinder material port.
Preferably, in the anti-slip cylinder control system of the concrete pump truck, a sensor for detecting a piston is arranged at an end part, far away from the concrete cylinder, of the oil cylinder of each feeding assembly, and when the sensor at the end part, far away from the concrete cylinder, of the oil cylinder detects the piston in the oil cylinder, it is determined that the concrete cylinder of the feeding assembly is filled with the material.
Preferably, in the anti-slip cylinder control system of the concrete pump truck, a sensor for detecting a piston is arranged at an end portion, close to the concrete cylinder, of the oil cylinder of each feeding assembly, and when the sensor at the end portion, close to the concrete cylinder, of the oil cylinder detects the piston in the oil cylinder, it is determined that the material in the concrete cylinder of the feeding assembly is completely discharged.
Preferably, in the anti-slip cylinder control system of the concrete pump truck, the concrete pump truck includes two groups of feeding assemblies, namely a first feeding assembly and a second feeding assembly, the first feeding assembly includes a first concrete cylinder, a first concrete piston, a first oil cylinder and a first piston, and two ends of the first oil cylinder are respectively provided with a first sensor and a second sensor;
the second feeding assembly comprises a second concrete cylinder, a second concrete piston, a second oil cylinder and a second piston, and a third sensor and a fourth sensor are arranged at two ends of the second oil cylinder respectively.
Preferably, in the anti-sliding cylinder control system of the concrete pump truck, the sensor is an infrared sensor.
According to the anti-sliding cylinder control method of the concrete pump truck, after the stop signal is received, the concrete pump truck is not stopped, but an S valve of the concrete pump truck is communicated with a material port of a concrete cylinder filled with materials, and then the concrete pump truck is stopped. After the S valve of the concrete pump truck is communicated with the material port of the concrete cylinder full of materials, no space exists in the concrete cylinder full of materials for containing the concrete flowing backwards, the concrete can not flow backwards to the concrete cylinder through the S valve at the moment, the phenomenon that the concrete slides backwards after the concrete pump truck is shut down is thoroughly avoided, and then the concrete capable of flowing backwards pushes the water in the concrete piston and the concrete cylinder to return to the water tank, so that the water overflow condition is caused.
In order to achieve the second object, the invention further provides an anti-sliding cylinder control system of the concrete pump truck, which comprises a controller, a sensor and a change-over switch. The controller is used for receiving stop signals, and the sensor and the change-over switch are in signal connection with the controller. The sensor is used for detecting whether the concrete cylinder of the feeding assembly of the concrete pump truck is filled with materials or not, and the change-over switch is used for changing over the S valve of the concrete pump truck to be communicated with a material port of any concrete cylinder. When the controller receives a stop signal, the concrete pump truck is temporarily stopped until the sensor detects that the concrete cylinder of the feeding assembly of the concrete pump truck is full of materials, and sends the signal to the controller, the controller controls the change-over switch, the change-over switch drives the S valve of the concrete pump truck to be communicated with the material inlet of the concrete cylinder full of materials, and then backflow concrete is prevented from pushing the concrete piston and water in the concrete cylinder to return to the water tank, and the water overflow condition is caused.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a pumping system configured to receive a shutdown signal in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pumping system after receiving a shutdown signal according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a pumping system at shutdown according to an embodiment of the present invention.
In fig. 1-3:
1-S valve, 2.1-first concrete piston, 3.1-first concrete cylinder, 4.1-first piston, 5.1-first oil cylinder, 2.2-second concrete piston, 3.2-second concrete cylinder, 4.2-second piston, 5.2-second oil cylinder, 6.1-first sensor, 6.2-second sensor, 6.3-third sensor, 6.4-fourth sensor and 7-water tank.
Detailed Description
The first purpose of the invention is to provide a concrete pump truck cylinder anti-slip control method which can effectively prevent water from overflowing out of a water tank due to concrete backflow.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a concrete pump truck cylinder slipping prevention control method, which comprises the following steps:
a1 receives the signal: judging whether a shutdown signal is received or not, and if so, entering the next step;
namely, when the pumping system of the concrete pump truck normally operates, whether a shutdown signal is received or not is judged, and if yes, the step A2 is executed.
A 2S valve connection: and (3) after the S valve 1 of the concrete pump truck is communicated with a material port of a concrete cylinder full of materials, stopping the concrete pump truck.
After receiving the stop signal, the concrete pump truck does not stop immediately, but stops after an S valve 1 of the concrete pump truck is communicated with a material port of a concrete cylinder full of materials.
In the anti-sliding cylinder control method of the concrete pump truck provided by the embodiment of the invention, after the stop signal is received, the concrete pump truck is not stopped, but the S valve 1 of the concrete pump truck is firstly communicated with the material port of the concrete cylinder full of materials, and then the concrete pump truck is stopped. After the S valve 1 of the concrete pump truck is communicated with the material port of the concrete cylinder full of materials, no space exists in the concrete cylinder full of materials to accommodate the backflow concrete, the concrete can not flow back to the concrete cylinder through the S valve 1 at the moment, the phenomenon that the concrete slides back after the concrete pump truck is shut down is thoroughly avoided, and then the backflow concrete pushes the concrete piston and the water in the concrete cylinder to return to the water tank 7, so that the water overflow condition is caused.
The concrete pump truck comprises two groups of feeding assemblies, wherein the two groups of feeding assemblies are respectively a first feeding assembly and a second feeding assembly, the first feeding assembly comprises a first concrete cylinder 3.1, and the second feeding assembly comprises a second concrete cylinder 3.2. When the materials are normally loaded, the first concrete cylinder 3.1 and the second concrete cylinder 3.2 are alternately communicated with the S valve 1, namely the first concrete cylinder 3.1 is communicated with the S valve 1 for loading after being filled with the materials, and meanwhile, the second concrete cylinder 3.2 is used for absorbing the materials; the second concrete cylinder 3.2 is communicated with the S valve 1 for feeding after being filled with materials, and meanwhile, the first concrete cylinder 3.1 is used for sucking materials. In the above method, the valve connection is specifically:
if the S valve 1 is communicated with one of the first concrete cylinder 3.1 and the second concrete cylinder 3.2 when the stop signal is received, whether the other one of the first concrete cylinder 3.1 and the second concrete cylinder 3.2 is full of materials is judged, if so, the S valve 1 is switched to be communicated with the material port of the other one of the first concrete cylinder 3.1 and the second concrete cylinder 3.2 and then is stopped, otherwise, the S valve 1 is switched to be communicated with the other one of the first concrete cylinder 3.1 and the second concrete cylinder 3.2 after the other one of the first concrete cylinder 3.1 and the second concrete cylinder 3.2 is full of materials and is stopped.
Specifically, if the S valve 1 is communicated with the first concrete cylinder 3.1 when the stop signal is received, whether the second concrete cylinder 3.2 is filled with the material is judged, and if the second concrete cylinder is filled with the material, the S valve 1 is switched to be communicated with a material port of the second concrete cylinder 3.2 and then the concrete cylinder is stopped. If the S valve 1 is communicated with the second concrete cylinder 3.2 when the stop signal is received, whether the first concrete cylinder 3.1 is filled with materials or not is judged, and if yes, the S valve 1 is switched to be communicated with a material port of the first concrete cylinder 3.1 and then the stop is carried out. That is, the S valve 1 is communicated with the first concrete cylinder 3.1 when receiving the stop signal, the second concrete cylinder 3.2 is in the process of sucking the material, and the S valve 1 is communicated with the second concrete cylinder 3.2 when receiving the stop signal, the first concrete cylinder 3.1 is in the process of sucking the material.
Further, if the S valve 1 is communicated with the first concrete cylinder 3.1 when the stop signal is received, the S valve 1 is switched to be communicated with the second concrete cylinder 3.2 after the material in the first concrete cylinder 3.1 is completely pushed out and the second concrete cylinder 3.2 is filled with the material. Similarly, if the S valve 1 is communicated with the second concrete cylinder 3.2 when the stop signal is received, the S valve 1 is switched to be communicated with the first concrete cylinder 3.1 after the material in the second concrete cylinder 3.2 is completely pushed out and the first concrete cylinder 3.1 is filled with the material. That is, the material in the first concrete cylinder 3.1 is just fully absorbed in the second concrete cylinder 3.2 when the material in the second concrete cylinder 3.2 is completely discharged, and the material in the first concrete cylinder 3.1 is just fully absorbed when the material in the second concrete cylinder 3.2 is completely discharged, so the first concrete cylinder 3.1 and the second concrete cylinder 3.2 are alternately performed, the working efficiency is higher, and the moving speed of the first concrete piston 2.1 in the first concrete cylinder 3.1 is the same as that of the second concrete piston 2.2 in the second concrete cylinder 3.2.
Specifically, when the piston of the feeding assembly is located at the end part, far away from the concrete cylinder, of the oil cylinder, it is determined that the concrete cylinder of the feeding assembly is filled with materials. The piston slides in the oil cylinder, the piston drives the concrete piston in the concrete cylinder to move, and when the material is sucked, the piston moves towards the direction far away from the concrete cylinder, and the concrete piston moves along with the piston to realize the material suction; during discharging, the piston moves towards the direction close to the concrete cylinder, and the concrete piston moves along with the piston to realize discharging. Therefore, when the piston is positioned at the end part of the oil cylinder far away from the concrete cylinder, the concrete cylinder is filled with the materials, and the S valve 1 can be communicated with the concrete cylinder filled with the materials.
And when the piston of the feeding assembly is positioned at the end part of the oil cylinder close to the concrete cylinder, judging that the material in the concrete cylinder of the feeding assembly is completely discharged. During discharging, the piston moves towards the direction close to the concrete cylinder, and the concrete piston moves along with the piston to realize discharging. Therefore, when the piston is positioned at the end part of the oil cylinder close to the concrete cylinder, the concrete cylinder is completely discharged with materials, and the S valve 1 can be communicated with the other concrete cylinder which is full of materials.
Of course, whether the concrete cylinder is filled with the material or not can be judged according to the position of the concrete piston, and the method is not limited herein.
As shown in fig. 1-3, in an embodiment, when a shutdown signal is received, the concrete pump truck is in a state shown in fig. 1, the S valve 1 is communicated with the first concrete cylinder 3.1, the material in the first concrete cylinder 3.1 is not completely discharged, and the second concrete cylinder 3.2 is not fully filled with the material, so that the concrete pump truck is temporarily stopped. Until the concrete pump truck is in the state shown in figure 2, the material in the first concrete cylinder 3.1 is completely discharged, the second concrete cylinder 3.2 is full of the material, then the S valve 1 is switched to communicate the S valve 1 with the second concrete cylinder 3.2, and the concrete pump truck is stopped again when the state shown in figure 3 is reached.
The invention also provides an anti-sliding cylinder control system of the concrete pump truck, which comprises a controller, a sensor and a change-over switch. The controller is used for receiving stop signals, and the sensor and the change-over switch are in signal connection with the controller. The sensor is used for detecting whether the concrete cylinder of the feeding assembly of the concrete pump truck is filled with materials or not, and the change-over switch is used for changing over the S valve 1 of the concrete pump truck to be communicated with a material port of any concrete cylinder. When the controller receives a stop signal, the concrete pump truck is temporarily stopped until the sensor detects that the concrete cylinder of the feeding assembly of the concrete pump truck is full of materials, the signal is sent to the controller, the controller controls the change-over switch, the change-over switch drives the S valve 1 of the concrete pump truck to be communicated with the material inlet of the concrete cylinder full of materials, and then backflow concrete is prevented from pushing the concrete piston and water in the concrete cylinder to return to the water tank 7, and the water overflow condition is caused.
Preferably, the end part, far away from the concrete cylinder, of the oil cylinder of each feeding assembly is provided with a sensor for detecting a piston, and when the sensor at the end part, far away from the concrete cylinder, of the oil cylinder detects the piston in the oil cylinder, it is determined that the concrete cylinder of the feeding assembly is filled with materials.
The end part, close to the concrete cylinder, of the oil cylinder of each feeding assembly is provided with a sensor for detecting a piston, and when the sensor, close to the end part of the concrete cylinder, of the oil cylinder detects the piston in the oil cylinder, it is judged that the material in the concrete cylinder of the feeding assembly is completely discharged.
The piston slides in the oil cylinder, the piston drives the concrete piston in the concrete cylinder to move, and when the material is sucked, the piston moves towards the direction far away from the concrete cylinder, and the concrete piston moves along with the piston to realize the material suction; during discharging, the piston moves towards the direction close to the concrete cylinder, and the concrete piston moves along with the piston to realize discharging. When the sensor at the end part of the oil cylinder far away from the concrete cylinder detects that the piston is at the end part of the oil cylinder far away from the concrete cylinder, the concrete cylinder is filled with the materials, and at the moment, the S valve 1 can be communicated with the concrete cylinder filled with the materials. When the sensor of the end part of the oil cylinder close to the concrete cylinder detects that the piston is positioned at the end part of the oil cylinder close to the concrete cylinder, the materials in the concrete cylinder are completely discharged, and at the moment, the S valve 1 can be communicated with the other concrete cylinder.
Specifically, the concrete pump truck comprises two groups of feeding assemblies, namely a first feeding assembly and a second feeding assembly, wherein the first feeding assembly comprises a first concrete cylinder 3.1, a first concrete piston 2.1, a first oil cylinder 5.1 and a first piston 4.1, two ends of the first oil cylinder 5.1 are respectively provided with a first sensor 6.1 and a second sensor 6.2, when the first sensor 6.1 detects the first piston 4.1, the material in the first concrete cylinder 3.1 is judged to be completely discharged, and when the second sensor 6.2 detects the first piston 4.1, the material in the first concrete cylinder 3.1 is judged to be full.
The second feeding assembly comprises a second concrete cylinder 3.2, a second concrete piston 2.2, a second oil cylinder 5.2 and a second piston 4.2, and a third sensor 6.3 and a fourth sensor 6.4 are respectively arranged at two ends of the second oil cylinder 5.2. When the third sensor 6.3 detects the second piston 4.2, it is determined that the second concrete cylinder 3.2 is full of material, and when the fourth sensor 6.4 detects the second piston 4.2, it is determined that the material in the second concrete cylinder 3.2 is completely discharged.
In another embodiment, the first sensor 6.1 and the second sensor 6.2 can also detect the position of the first concrete piston 2.1, and the third sensor 6.3 and the fourth sensor 6.4 can also detect the position of the second concrete piston 2.2.
The sensor may be an infrared sensor, but may also be other types of sensors, which is not limited herein.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An anti-sliding cylinder control method of a concrete pump truck is characterized by comprising the following steps:
when concrete is sucked in, the material port of the concrete cylinder of the feeding assembly of the concrete pump truck is communicated with the hopper, and when concrete is pushed out, the material port of the concrete cylinder of the feeding assembly of the concrete pump truck is communicated with the S valve of the concrete pump truck;
receiving signals: judging whether a shutdown signal is received or not, and if so, entering the next step;
the S valve (1) is connected: after receiving the stop signal, the concrete pump truck does not stop immediately, but stops after an S valve (1) of the concrete pump truck is communicated with a material port of a concrete cylinder full of materials.
2. The concrete pump truck anti-slip cylinder control method according to claim 1, wherein the concrete pump truck comprises two groups of feeding assemblies which are respectively a first feeding assembly and a second feeding assembly, the first feeding assembly comprises a first concrete cylinder (3.1), the second feeding assembly comprises a second concrete cylinder (3.2), and the step S valve is specifically connected as follows:
if the S valve (1) is communicated with one of the first concrete cylinder (3.1) and the second concrete cylinder (3.2) when a stop signal is received, judging whether the other one of the first concrete cylinder (3.1) and the second concrete cylinder (3.2) is filled with materials or not, if so, switching the S valve (1) to be communicated with the material port of the other one of the first concrete cylinder (3.1) and the second concrete cylinder (3.2) and then stopping, otherwise, waiting until the other one of the first concrete cylinder (3.1) and the second concrete cylinder (3.2) is filled with materials and switching the S valve (1) to be communicated with the other one of the first concrete cylinder (3.1) and the second concrete cylinder (3.2) and then stopping.
3. The concrete pump truck anti-slip cylinder control method according to claim 2, characterized in that if the S valve (1) is communicated with the first concrete cylinder (3.1) when a stop signal is received, the S valve (1) is switched to be communicated with the second concrete cylinder (3.2) after the material in the first concrete cylinder (3.1) is completely pushed out and the second concrete cylinder (3.2) is filled with the material;
if the S valve (1) is communicated with the second concrete cylinder (3.2) when a stop signal is received, the S valve (1) is switched to be communicated with the first concrete cylinder (3.1) after the material in the second concrete cylinder (3.2) is completely pushed out and the first concrete cylinder (3.1) is filled with the material.
4. The concrete pump truck anti-slip cylinder control method as claimed in claim 3, wherein when the piston of the feeding assembly is located at the end of the oil cylinder far from the concrete cylinder, it is determined that the concrete cylinder of the feeding assembly is filled with material;
and when the piston of the feeding assembly is positioned at the end part of the oil cylinder close to the concrete cylinder, judging that the material in the concrete cylinder of the feeding assembly is completely discharged.
5. The utility model provides a concrete pump truck prevents swift current jar control system which characterized in that includes:
a controller for receiving a shutdown signal;
the sensor is in signal connection with the controller and is used for detecting whether a concrete cylinder of the feeding assembly of the concrete pump truck is filled with materials or not;
the selector switch is in signal connection with the controller, and the controller can control the selector switch to switch the S valve (1) of the concrete pump truck to be communicated with any concrete cylinder material port; when concrete is sucked in, the material opening of the concrete cylinder of the feeding assembly of the concrete pump truck is communicated with the hopper, and when concrete is pushed out, the material opening of the concrete cylinder of the feeding assembly of the concrete pump truck is communicated with the S valve of the concrete pump truck.
6. The concrete pump truck anti-slip cylinder control system as claimed in claim 5, wherein a sensor for detecting a piston is provided at an end of the oil cylinder of each feeding assembly away from the concrete cylinder, and when the sensor at the end of the oil cylinder away from the concrete cylinder detects the piston in the oil cylinder, it is determined that the concrete cylinder of the feeding assembly is filled with the material.
7. The concrete pump truck anti-slip cylinder control system as claimed in claim 6, wherein the end of the oil cylinder of each feeding assembly near the concrete cylinder is provided with a sensor for detecting a piston, and when the sensor of the end of the oil cylinder near the concrete cylinder detects the piston in the oil cylinder, it is determined that the material in the concrete cylinder of the feeding assembly is completely discharged.
8. The concrete pump truck anti-sliding cylinder control system according to claim 7, wherein the concrete pump truck comprises two groups of feeding assemblies, namely a first feeding assembly and a second feeding assembly, the first feeding assembly comprises a first concrete cylinder (3.1), a first concrete piston (2.1), a first oil cylinder (5.1) and a first piston (4.1), and a first sensor (6.1) and a second sensor (6.2) are arranged at two ends of the first oil cylinder (5.1) respectively;
the second feeding assembly comprises a second concrete cylinder (3.2), a second concrete piston (2.2), a second oil cylinder (5.2) and a second piston (4.2), and a third sensor (6.3) and a fourth sensor (6.4) are respectively arranged at two ends of the second oil cylinder (5.2).
9. The system of any one of claims 5 to 8, wherein the sensor is an infrared sensor.
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| CN110131122B (en) * | 2019-03-29 | 2020-09-18 | 中联重科股份有限公司 | Control method and system for preventing cylinder slipping of pumping system and pumping device |
| CN112879261A (en) * | 2021-03-01 | 2021-06-01 | 胡兵 | Concrete pump with ultrahigh lift |
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| CN102425585A (en) * | 2011-12-07 | 2012-04-25 | 中联重科股份有限公司 | Closed hydraulic system of pumping device and control method thereof |
| CN105715622A (en) * | 2016-04-25 | 2016-06-29 | 北汽福田汽车股份有限公司 | Engineering machinery and pumping system thereof |
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