WO2019144731A1

WO2019144731A1 - Integrated dual-link concrete supply pouring system and supply method

Info

Publication number: WO2019144731A1
Application number: PCT/CN2018/122276
Authority: WO
Inventors: 盛富春
Original assignee: 盛富春
Priority date: 2018-01-26
Filing date: 2018-12-20
Publication date: 2019-08-01
Also published as: CN108331351A; CN108331351B

Abstract

Provided are an integrated dual-link concrete supply pouring system and a supply method based on same; said pouring system comprises a mixer truck (100) and a pump truck (200); the mixer truck (100) has a mixing drum (101) and a sealing end cover (102); the sealing end cover (102) is connected to a supply pipe (103) used for outputting concrete; the pump truck (200) comprises a receiving hopper (201), a feed pipe (202), a conveying pump (203), and a conveying pipe (204); one end of the feed pipe (202) is connected to the supply pipe (103), and the other end is in communication with the receiving hopper (201); the conveying pump (203) is used for conveying the concrete in the receiving hopper (201) to the pouring surface by means of the conveying pipe (204) and an output pipe (207). The mixing controller of the mixer truck (100) and the control system of the pump truck (200) communicate with one another by means of a control cable (104), or communicate by wireless transmission means. On the basis of the system, integrated automatic operation between the mixer truck (100) and the pump truck (200) is achieved, and concrete moisture evaporation can prevented, thereby ensuring the quality of the concrete.

Description

Integrated double concrete supply pouring system and supply method

Technical field

The invention relates to a concrete pouring supply system, and to a concrete pouring supply method for the construction industry to pump concrete.

Background technique

At present, the pumping and pouring concrete is mainly realized by the separate operation of the concrete mixer truck and the concrete pump truck to realize the feeding of the mixer truck and the pumping of the pump truck to the pouring position. The concrete mixer feeds the concrete of the pump truck through its discharge chute. This kind of operation needs to be completed by the person on the pump truck who observes the mixer truck and the pump truck receiving the hopper, the remote control operation on the pouring work surface, and the operator of the mixer truck. The problems are:

(1) Since the discharge chute and the receiving hopper are open type, not only is it easy to overflow and leak, but the moisture of the concrete is easily evaporated, and the heat preservation effect is also poor.

(2) Since the mixer feeds the hopper by the chute, the potential energy of the concrete level in the mixing tank during the self-flow process will be completely released, which cannot be used to improve the fluency of the feeding.

(3) The mixer truck needs to have sufficient height to ensure that the concrete flows smoothly into the hopper, resulting in high altitude, poor driving safety and easy to roll over; if the height of the mixer is low, the sufficient and smooth supply of concrete cannot be satisfied.

(4) The operation on the pouring work surface is passive. It is necessary to inform the operator on the pump truck in a certain way, and it is not possible to carry out the pouring operation in time, which affects the pouring speed and requires at least three operators, usually the mixer truck. 1 person, 1 pump truck, 1 pouring working face. If necessary, the pump truck needs one person to take care of the hopper. It not only affects the efficiency of construction, increases labor cost, but also easily causes waste of concrete.

(5) The labor shortage in the future is becoming more and more serious. The automation, high efficiency and informationization of construction concrete construction are inevitable. The current mixing vehicle feeding and pumping vehicle feeding methods cannot meet this requirement.

(6) The existing concrete supply and pouring method, due to the open hopper, the heat preservation and moisture resistance is not good, the concrete in the hopper will cause segregation, stratification, slump drop due to long time stirring, and need to add water to pump , seriously affecting the improvement of building quality.

technical problem

The invention provides an integrated double concrete supply pouring system and a supply method, that is, the concrete liquid in the mixing drum of the mixer is integrated with the concrete liquid in the closed receiving hopper of the pump truck through the closed feeding pipe and the feeding pipe. The closed-end mobile connection, the operating system of the mixer truck is integrated and integrated with the pump truck through wired and wireless connection. Its purpose is: (1) to avoid concrete spillage, water evaporation, slump loss, improve the insulation effect, improve the quality of concrete construction; (2) to achieve the drop pressure supply of concrete, greatly reduce the height of the mixer Under the premise of a large increase in safety, it also ensures that the concrete is better and more timely and timely; (3) Convenient pouring operation, reducing personnel can even achieve unmanned operation, reducing labor costs, improving work efficiency and automation; (4) The integration, informationization and automation of the mixer truck and the pump truck lay the foundation for the intelligent manufacturing of concrete construction.

Technical solution

The technical scheme of the present invention is as follows:

The integrated double concrete supply pouring system comprises a mixer truck and a pump truck, the mixer truck has a mixing drum rotated relative to the body of the mixer truck, and a sealed end cover mounted on the mixer body body at the rear side of the mixing tank. The mixer truck is further provided with a rotary sealing device between the sealing end cover and the rear end of the mixing barrel for preventing leakage of concrete from between the sealing end cover and the mixing barrel; the sealing end cover is connected for output Concrete supply pipe;

The pump truck comprises a receiving hopper, a feeding pipe, a feeding pump and a conveying pipe; one end of the feeding pipe is connected with the feeding pipe, and the other end is connected with the receiving hopper; the discharging end of the feeding pipe is connected There is a discharge pipe for conveying concrete in the hopper to the pouring working surface through the conveying pipe and the discharging pipe;

The mixer truck is provided with a stirring controller for controlling the mixing tank stirring; the pump truck is provided with a control system for controlling the feeding of the feeding pump; and the mixing controller communicates with the control system through the control cable. Or communicate by wireless transmission.

As a further improvement of the present invention, the hopper is a sealing structure, the concrete in the mixing drum, the concrete of the feeding pipe, the concrete of the feeding pipe and the concrete of the hopper form a continuous pressurized fluid to give the receiving hopper a The supply pressure resulting from the level of the concrete in the mixing drum and the level difference formed by the concrete level at the feed pipe.

As a further improvement of the present invention, a supply valve is provided at the junction of the supply pipe and the sealed end cap.

As a further improvement of the present invention, the sealed end cover is provided with a liquid level detecting device, and the stirring controller is configured to adjust the rotating speed of the stirring drum according to the liquid level height measured by the liquid level detecting device.

As a further improvement of the invention: the feed tube diameter is larger than the discharge tube diameter.

As a further improvement of the present invention, a filter mesh is provided at the junction of the supply pipe and the sealed end cap.

As a further improvement of the present invention, the pump truck is provided with a mechanical arm, the delivery tube is mounted on the mechanical arm, the discharge tube is disposed at the end of the mechanical arm, and the end of the mechanical arm is further mounted with an imaging device.

As a further improvement of the present invention, a manipulator is further included, which is connected to the control system through a connecting line or a wireless transmission mode to realize integrated control of the mixer truck and the pump truck.

As a further improvement of the present invention, the pump truck is provided with a mechanical arm, the delivery tube is mounted on a robot arm, and the discharge tube and the operator are disposed at the end of the robot arm.

Based on the supply method of the above supply system, the steps are: starting the mixing drum to rotate in the discharge direction and forming a concrete level detected by the liquid level detecting device in the mixing barrel, and then opening the valve to convey the concrete to the pumping vehicle to make the feeding The pipe, the feeding pipe and the receiving hopper are filled with concrete fluid; the start and stop of the conveying pump are controlled according to the pouring requirement, and the stirring controller controls the rotation speed and the rotating direction of the mixing drum: when the liquid level of the mixing barrel is low At the lower limit of the preset target liquid level range, the rotation speed of the mixing drum is increased until the liquid level is within the target liquid level; when the liquid level at the discharge port of the mixing barrel is higher than the upper limit of the target liquid level range, the rotation speed of the mixing drum is lowered until The liquid level is within the target level.

Beneficial effect

Compared with the prior art, the invention has the following positive effects: (1) a closed feeding system comprising a feeding pipe, a closed receiving hopper, a feed pump and a discharging pipe, which can not only avoid leakage of concrete, but also moisture. Evaporation, slump loss, improve the insulation effect, and also achieve the pressure supply of concrete. When the feed pump draws concrete, it can form enough supply pressure to ensure timely and sufficient feeding; (2) can use tilting The front end of the mixing drum or the speed of adjusting the mixing drum ensures the liquid level at the discharge port of the mixing drum, which not only forms a high supply pressure, but also ensures smooth output of the concrete to the receiving hopper, and further ensures sufficient feeding, while the mixer is The height can be greatly reduced, the angle of the axis of the mixing drum relative to the horizontal plane can be set to 0-6°, and the discharge residue is also reduced; (3) due to the continuous pressure supply of the concrete, the hopper is sealed, and the delivery is guaranteed. Under the premise of normal installation and use of the material pump and other components, the volume of the hopper is reduced, and the swinging stirring of the swinging tube can satisfy the stirring and coagulation. Therefore, there is no need to set up the mixing device at the receiving hopper; (4) In the technical scheme of controlling the rotating speed of the mixing drum by using the stirring controller, the mixing car can automatically ensure sufficient and proper feeding of the pumping truck, and the staff There is no need to control the mixer truck, which reduces the input of personnel and improves the working efficiency. (5) In the technical scheme of controlling the feed pump through the discharge end or remote control mode, only one plane is placed on the concrete pouring surface. The staff can complete all the operations, greatly reducing the labor cost, improving the pouring efficiency and pouring quality; (6) remotely monitoring the pouring situation through the camera mounted at the end of the robot arm, enabling remote or automated unmanned operating.

DRAWINGS

Figure 1 is a schematic view showing the structure of a pouring supply system in the present invention.

Embodiments of the invention

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings:

Embodiment 1

Figure 1, the integrated double concrete supply pouring system, including the mixer truck 100 and the pump truck 200.

The mixer truck 100 has a mixing drum 101 that rotates relative to the body of the mixer truck 100, and a sealing end cover 102 that is mounted on the body of the mixer truck 100 and is located at the rear side of the mixing drum 101. The mixer truck 100 is also located on the mixer truck 100. A rotary sealing device between the sealing end cap 102 and the rear end of the mixing tub 101 for preventing leakage of concrete from between the sealing end cap 102 and the mixing tub 101. The structure of the rotary sealing device can be referred to the authorization publication number CN102029940B. The rotary sealing mechanism in the Chinese invention patent "concrete mixing truck of the mixing drum into and out of the rotary sealing" can also adopt other structural forms; the sealing end cover 102 is provided with a discharge opening.

The agitating barrel 101 is provided with a spiral blade. When the mixing drum 101 rotates, the blade pushes the concrete to move along the spiral blade toward the discharge port to realize the screw conveying; the screw conveying mechanism is a common one of the prior art mixing truck 100. Design, inevitable features.

The sealing end cover 102 is provided with a liquid level detecting device 106 for adjusting the rotation speed of the stirring drum 101 according to the liquid level height measured by the liquid level detecting device 106.

A supply pipe 103 for outputting concrete is connected to the sealed end cover 102. A filter mesh and a supply valve 105 are disposed at the junction of the supply pipe 103 and the sealed end cap 102.

The pump truck 200 includes a receiving hopper 201, a feeding pipe 202, a feed pump 203 and a feeding pipe 204; one end of the feeding pipe 202 is connected to the feeding pipe 103, and the other end is connected to the receiving hopper 201; A discharge pipe 207 is connected to the discharge end of the feed pipe 204, and the feed pump 203 is configured to convey the concrete in the hopper 201 to the pouring work surface through the feed pipe 204 and the discharge pipe 207; The diameter of the tube 202 is greater than the diameter of the discharge tube 207. The feed pump 203 is preferably a plunger pump or other form of working pump. A feed valve 210 is disposed on the feed pipe 202.

Preferably, when a plunger pump is used, a swing tube 205 is further provided in the receiving hopper 201. One end of the swinging tube 205 is connected to the inlet and outlet of the plunger pump, and the other end is rotatably connected to the side wall of the receiving hopper 201 and communicates with the feeding pipe 204 through the side wall of the receiving hopper 201. The rotating connection is provided. There are sealing devices. An oscillating drive device, preferably a telescopic cylinder, is provided outside the hopper 201 for reciprocatingly oscillating the oscillating tube 205 with respect to the receiving hopper 201. The swinging of the swinging pipe 205 is matched with the action of the plunger pump. When the plunger pump outputs the concrete, the one end of the swinging pipe 205 located in the receiving hopper 201 is connected to the plunger pump, and the concrete enters and enters through the swinging pipe 205. In the tube 204, when the plunger pump sucks, the swing tube 205 is disengaged from the plunger pump. The swinging of the swinging tube 205 can also effectively agitate the concrete in the hopper 201.

The mixing cart 100 is provided with a bracket 107. The bracket 107 can be folded and folded, opened and lowered, and can also be rotated and swinged. The feeding tube 103 is mounted on the bracket 107 to facilitate driving and satisfying the feeding tube. The requirement of 103 to interface with the feed tube 202.

The feed pipe 202 is a three-way, two feed ends are used to connect the mixer truck 100, and one discharge end is used to connect the receiving hopper 201, thereby achieving uninterrupted feeding when the mixer truck 100 is replaced.

The pump truck 200 is mounted with a rotatable mechanical arm 206 mounted on the robot arm 206, and a discharge tube 207 is disposed at the end of the robot arm 206.

The mixer truck 100 is provided with a stirring controller for controlling the stirring operation of the mixing drum 101, opening and closing of the supply valve 105, etc.; the pump truck 200 is provided with a control system for controlling the feeding and feeding of the feeding pump 203. The opening and closing of the valve 210, etc.; the mixing controller and the control system communicate through the control cable 104, or communicate by wireless transmission.

The receiving hopper 201 is a sealing structure, and the concrete in the mixing drum 101, the concrete of the feeding pipe 103, the concrete of the feeding pipe 202, and the concrete received by the hopper 201 form an integrated pressurized fluid to give the receiving hopper 201 a The supply pressure of the concrete level in the mixing drum 101 and the liquid level difference formed by the concrete level at the feeding pipe 202.

The receiving hopper 201 is further provided with an openable and closable venting hole. At the initial stage of operation, the hopper venting opening and the feeding valve 210 are sequentially opened, and when the material is filled with the receiving hopper 201, the venting opening is closed.

The core of the invention is that the closed feed system can avoid not only leakage of concrete spillage, evaporation of water, addition of water due to slump loss, improvement of heat preservation effect, improvement of concrete quality and pouring speed, but also feed pump 203 When the concrete is sucked, sufficient supply pressure can be formed, and the total loss of potential energy when the open concrete is supplied is avoided, and the pressure supply of the pump truck 200 to the pump truck 200 in an arbitrary, timely and sufficient non-sprinkling manner is realized.

Since the continuous supply of concrete is realized, it is no longer necessary to provide a stirring device at the receiving hopper 201, so that the volume of the receiving hopper 201 can be reduced, and the components such as the feed pump 203 can be properly installed and used, for example, when using a plunger pump, The space of the hopper 201 satisfies the movement of the swing pipe 205, and the continuous swing of the swing pipe 205 can achieve effective agitation of the concrete in the hopper 201.

After the mixer truck 100 arrives at the construction site, it stops at the docking position of the pump truck 200, and the bracket 107 of the mixer truck 100 drives the feeding pipe 103 and the receiving hopper 201 of the pump truck 200 to be connected through the feeding pipe 202. The control cable 104 of the mixer truck 100 is interconnected with the control system of the pump truck 200 via a socket installed in the pump truck 200, or wirelessly by wireless transmission.

In operation, the mixing drum 101 is started to rotate in the discharge direction and the concrete level detected by the liquid level detecting device 106 is formed in the mixing tank 101. After the liquid level meets the requirements, the supply valve 105, the feed valve 210, and the feed valve 210 are opened. The vent hole of the hopper 201 conveys concrete to the receiving hopper 201 of the pump truck 200, so that the feeding pipe 103, the feeding pipe 202 and the receiving hopper 201 are filled with concrete fluid; the worker controls the opening of the conveying pump 203 according to the pouring needs. At the same time, the stirring controller automatically controls the rotation speed and the rotation direction of the mixing drum 101: when the liquid level at the discharge port of the mixing drum 101 is lower than the lower limit of the preset target liquid level range, the rotation speed of the stirring drum 101 is increased until the liquid Within the target liquid level range, when the liquid level at the discharge port of the mixing drum 101 is higher than the upper limit of the target liquid level range, the rotation speed of the stirring drum 101 is lowered until the liquid level is within the target liquid level range. Therefore, the mixer truck 100 can automatically ensure the supply pressure difference to the pump truck 200, so that the feeding amount is sufficient and appropriate, and the worker does not need to perform separate control operations on the mixer truck 100, thereby reducing personnel input, improving work efficiency, and ensuring The liquid level at the discharge port of the mixing drum 101 forms a high enough supply pressure to ensure smooth flow of the concrete into the receiving hopper 201.

Further, a control system can be provided for the robot arm 206 to control the movement track and posture of the end discharge pipe 207, thereby realizing manual or automatic and intelligent pouring.

In order to be able to monitor the pouring situation in real time, the camera 208 and the manipulator 209 can be mounted at the end of the robot arm 206. The manipulator 209 is connected to the control system through a connecting line or a wireless transmission mode to realize integrated control of the mixer truck 100 and the pump truck 200. When using the direct connection mode, the worker needs to operate through the manipulator 209 in the cab of the pump truck 200, on the ground near the pump truck 200 or on the pouring work surface; when using the remote control mode, the staff can directly control the material feeding on the working surface. The pump 203 may also be coupled to the camera 208 for central control or remote control and monitoring of the pump 200. Combined with the control system for the motion control setting of the robot arm 206, the overall control of the feeding and automatic pouring of the pump truck 200 is realized. The manipulator 209 can be disposed at the end of the robot arm 206 to facilitate the operation of the person on the work surface, or can be placed in other places such as the cab.

Embodiment 2

The difference between the embodiment and the first embodiment is that the tip end of the agitating drum 101 is driven to a certain height in the axial direction by the tilting driving mechanism provided on the mixer truck 100 to ensure that the discharging end of the mixing drum 101 is sufficient. The liquid level ensures the initial pressure of the concrete feed and sufficient feed. In the case of using the tilting drive mechanism, the liquid level can be no longer adjusted by means of the stirring controller, and the function of adjusting the liquid level by the stirring controller can be retained, and the two are coordinated. The rest of the two embodiments are identical.

One of the common structures of the tilting drive mechanism is that the mixing drum and the end cover are placed on a rotating frame, and the rear end of the rotating frame is hinged with the vehicle body or the sub-frame, and a hydraulic cylinder is provided, one end of the hydraulic cylinder It is hinged to the vehicle body, and the other end is hinged to the rotating frame. When the vehicle is extended, the rotating frame, the stirring drum 101 and the like are rotated backwards as a whole, and the concrete in the mixing drum 101 flows backward, thereby lifting the discharge port of the mixing drum 101. The liquid level. The tilting drive mechanism can also be in the form of other structures driven by a motor drive or a traction device, and is also a common mechanism in the prior art.

Claims

The integrated double concrete supply pouring system comprises a mixer truck (100) and a pump truck (200), characterized in that the mixer truck (100) has a mixing drum (101) which is rotated relative to the body of the mixer truck (100). And a sealing end cover (102) mounted on the rear side of the mixing drum (101) on the body of the mixer truck (100), and the mixing vehicle (100) is further provided with a sealing end cover (102) and a mixing barrel ( 101) a rotary seal between the rear ends for preventing leakage of concrete from between the sealed end cap (102) and the mixing drum (101); the sealing end cap (102) is connected to a supply for outputting concrete Tube (103);

The pump truck (200) includes a receiving hopper (201), a feeding pipe (202), a feed pump (203), and a delivery pipe (204); one end of the feeding pipe (202) and a feeding pipe (103) The other end is connected to the receiving hopper (201); the discharge pipe (204) is connected with a discharge pipe (207) at the discharge end, and the feed pump (203) is used for receiving the hopper (201). The concrete in the concrete is conveyed to the pouring work surface through the conveying pipe (204) and the discharging pipe (207);

The mixer truck (100) is provided with a stirring controller for controlling the stirring of the mixing drum (101); the pump truck (200) is provided with a control system for controlling the feeding of the feeding pump (203); the stirring control The communication between the device and the control system is through the control cable (104) or through wireless transmission.
The integrated double concrete pouring and placing system according to claim 1, wherein the receiving hopper (201) is a sealing structure, the concrete in the mixing drum (101), the concrete of the feeding pipe (103), and the inlet. The concrete of the material pipe (202) and the concrete of the hopper (201) form an integrated pressurized fluid to impart a liquid level to the receiving hopper (201) by the concrete in the mixing drum (101) and by the feeding pipe (202) The supply pressure generated by the difference in liquid level formed by the concrete level.
The integrated double concrete pouring and placing system according to claim 1, characterized in that: the supply pipe (103) is connected with the sealing end cover (102) at a connection valve (105).
The integrated double concrete pouring and placing system according to claim 1, wherein the sealing end cover (102) is provided with a liquid level detecting device (106), and the stirring controller is used for the liquid level detecting device. (106) The measured liquid level height adjusts the rotation speed of the mixing drum (101).
The integrated double concrete pouring and placing system according to claim 1, wherein the diameter of the feeding pipe (202) is larger than the diameter of the discharging pipe (207).
The integrated double concrete pouring and placing system according to claim 1, characterized in that: the feeding pipe (103) and the sealing end cover (102) are connected with a filter.
The integrated double concrete pouring and placing system according to claim 1, wherein the pump truck (200) is provided with a mechanical arm (206), and the feeding pipe (204) is mounted on the mechanical arm (206). The discharge tube (207) is disposed at the end of the robot arm (206), and an endoscope (208) is also mounted at the end of the robot arm (206).
The integrated double concrete pouring and placing system according to claim 1, further comprising a manipulator (209), wherein the manipulator is connected to the control system through a connecting line or a wireless transmission manner to realize the mixing vehicle ( 100) Integrated control with the pump truck (200).
The integrated double concrete pouring and placing system according to claim 8, wherein the pump truck (200) is provided with a mechanical arm (206), and the feeding pipe (204) is mounted on the mechanical arm (206). The discharge tube (207) and the manipulator (209) are disposed at the end of the robot arm (206).
A method of supplying a one-piece double concrete supply pouring system according to claim 4, characterized in that the step is: starting the stirring drum (101) to rotate in the discharge direction and forming a liquid level in the stirring tank (101) The detecting device (106) performs the detected concrete level, and then opens the valve to transport the concrete to the pump truck (200), so that the feeding tube (103), the feeding tube (202) and the receiving hopper (201) are filled with concrete fluid; The pouring needs to control the start and stop of the feed pump (203). At the same time, the stirring controller controls the rotation speed and the rotation direction of the mixing drum (101): when the liquid level of the mixing tank (101) is lower than the preset target When the lower limit of the liquid level range, increase the rotation speed of the mixing drum (101) until the liquid level is within the target liquid level; when the liquid level at the discharge port of the mixing tank (101) is higher than the upper limit of the target liquid level range, reduce the mixing tank ( 101) Speed until the liquid level is within the target level.