CN113389385A

CN113389385A - Foam concrete distributing machine

Info

Publication number: CN113389385A
Application number: CN202110702127.8A
Authority: CN
Inventors: 卓建科
Original assignee: Ningbo Zhenhai Mingcheng Road And Bridge Building Materials Co ltd
Current assignee: Ningbo Zhenhai Mingcheng Road And Bridge Building Materials Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-09-14

Abstract

The invention discloses a foam concrete spreader, which comprises a main frame; one end of the telescopic arm frame is hinged with the main frame, and the other end of the telescopic arm frame is a free end suitable for being telescopic; one end of the amplitude-variable oil cylinder is hinged with the telescopic arm frame, and the other end of the amplitude-variable oil cylinder is hinged with the main frame; the winch container is rotatably arranged on the main frame, a hollow pipe is arranged in the winch container, a first interface and a second interface are respectively arranged at two ends of the hollow pipe, the first interface is positioned at the rotating center of the winch container, and the second interface is positioned on the outer peripheral surface of the winch container; and the guide pipe part is wound on the circumference of the winch container, the guide pipe part is laid along the telescopic arm support, one end of the guide pipe is connected with the second interface, and the other end of the guide pipe synchronously moves along with the free end of the telescopic arm support. The invention provides a foam concrete spreader which adopts a telescopic arm support, wherein a material guide pipe on a winch receiver is synchronously wound along with the telescopic arm support, so that the pouring quality is improved.

Description

Foam concrete distributing machine

Technical Field

The invention relates to the technical field of concrete conveying equipment, in particular to a foam concrete spreader.

Background

A distributing machine is a concrete conveying device and is mainly used for concrete construction and material conveying of buildings such as power stations, wharfs, airports, bridges and the like. According to the working mode of a cantilever, the material distributing machine can be divided into a fixed material distributing machine and a telescopic material distributing machine. Compared with a telescopic distributing machine, the fixed distributing machine has pouring dead angles. The telescopic distributing machine can be roughly divided into the following two types according to the telescopic mode: the other is a folding type distributing machine, when the foam concrete is pumped, each bending joint of the folding type distributing machine forms resistance pressure drop, and a plurality of bending joints are connected to influence the pore quality of the filling material. The other is a telescopic distributing machine, as in the chinese utility model patent of CN2460659Y, a self-propelled concrete belt distributing machine is disclosed, which belongs to a mobile concrete belt distributing machine.

The most best movable concrete belt distributing machine used in the construction of the hydroelectric engineering at home and abroad is a Telebelt series vehicle-mounted telescopic belt distributing machine produced by Creter crop produced by the American ROTEC company and PUTZMISTER produced by Germany. However, the belt distributor is suitable for conveying concrete with large-particle aggregate and is not suitable for conveying foam concrete slurry. Because the concrete slurry and the foam are mixed completely to form the foam concrete, the foam concrete needs to be conveyed through a pipeline at high pressure, excessive air contact is not needed in the conveying process, and the phenomenon that the casting quality is affected by the formation of large air holes in the casting process is avoided. Therefore, the market is in urgent need of a telescopic pipeline concrete spreader.

Disclosure of Invention

The invention aims to provide a foam concrete spreader which adopts a telescopic arm support, wherein a material guide pipe on a winch receiver is synchronously unfolded or wound along with the telescopic arm support, so that the form resistance pressure drop of a foam concrete pumping path is reduced, and the pouring quality is improved.

The technical scheme adopted by the embodiment of the invention is as follows: provides a foam concrete spreader, which comprises a main frame; one end of the telescopic arm frame is hinged with the main frame, and the other end of the telescopic arm frame is a free end suitable for being telescopic; one end of the amplitude-variable oil cylinder is hinged with the telescopic arm support, and the other end of the amplitude-variable oil cylinder is hinged with the main frame; the winch container is rotatably arranged on the main frame, a hollow pipe is arranged in the winch container, a first interface and a second interface are respectively arranged at two ends of the hollow pipe, the first interface is positioned at the rotating center of the winch container, and the second interface is positioned on the outer peripheral surface of the winch container; the material guide pipe is partially wound on the circumference of the winch container, the material guide pipe is partially laid along the telescopic arm support, one end of the material guide pipe is connected with the second connector, and the other end of the material guide pipe synchronously moves along with the free end of the telescopic arm support.

After the structure is adopted, the telescopic arm support arranged on the main frame provides a bearing platform extending in a straight line for the material guide pipes, and the material guide pipes extending in the straight line have no corners, so that the formed shape resistance pressure drop is reduced; install the capstan winch storage device on the body frame and be used for collecting and roll up and attach the passage, at the in-process of rolling, the capstan winch storage device need be rotatory all over the body along the center pin, be equipped with the hollow tube in the center pin at this one end or both ends, the hollow tube has relative both ends, be first interface and second interface respectively, first interface is used for the foam concrete of external pump sending, it sets up on the center pin axis of capstan winch storage device, eccentric rotation can not be done along with the rotation of capstan winch storage device to external pipeline, the stability of foam concrete pipe connection has been improved.

Preferably, the telescopic arm support comprises a plurality of arm supports which are connected with each other, wherein one end of one arm support forms a free end of the telescopic arm support, and a telescopic oil cylinder is arranged between every two adjacent arm supports; a cantilever with a telescopic structure is formed by a plurality of arm supports, and the pouring end is arranged at the free end of the telescopic arm support, so that the coverage area of operation is increased.

Preferably, the arm supports comprise cylinder bodies, the telescopic oil cylinders are mounted on the outer surfaces of the cylinder bodies, the cylinder bodies of the arm supports form an internal channel, and the material guide pipe is partially laid in the internal channel; the cylinder body is communicated in a penetrating cylindrical shape, the material guide pipes sequentially penetrate through the interior of the arm support cylinder body, and the plurality of arm supports are used as moving channels of the material guide pipes.

Preferably, the telescopic arm support is provided with a fixed part, the fixed part is provided with a movable channel, and the material guide pipe is partially laid in the movable channel; the moving channel is used for restraining the moving route of the material guide pipe so that the material guide pipe moves along a set route, and the set route is parallel to the axis of the telescopic arm support.

Preferably, the fixing part comprises a plurality of fixing grooves, and each fixing groove is correspondingly arranged on each arm support one by one; the fixed groove is used for providing a laying path for the guide pipe, so that the guide pipe is prevented from being deviated in the moving process.

Preferably, the fixed groove is provided with a carrier roller assembly, and the material guide pipe abuts against each carrier roller assembly; the setting of bearing roller is in order to reduce the guiding pipe and the frictional force between the fixed slot at the removal in-process, reduces the wearing and tearing that the guiding pipe caused because of the friction.

Preferably, the cross-sectional shape of the idler assembly is linear, V-shaped or U-shaped.

Preferably, the lifting device further comprises a balancing weight, and the balancing weight is installed at the tail end of the main frame; the balancing weight is used for balancing the whole gravity center of the foam concrete spreader.

Preferably, the main frame is provided with a first slide rail and a first driving rod, the first slide rail is arranged at the tail end of the main frame, the counterweight block is arranged on the first slide rail, and the first driving rod is suitable for driving the first slide rail to move towards or away from the telescopic arm support; in the process that the telescopic boom extends out to the head end, the whole gravity center of the material distributor is inclined forward, the first driving rod drives the balancing weight to move towards the rear end along the first sliding rail, and the whole gravity center of the material distributor is balanced.

Preferably, a second slide rail and a second driving rod are mounted on the main frame, a winch support is mounted on the second slide rail, the winch receiver is mounted on the winch support, and the second driving rod is adapted to drive the second slide rail to move along the rotating shaft direction of the winch receiver; the second slide rail moves along with the rolling of the winch container, and is used for reducing the bending angle of the material guide pipe between the winch container and the telescopic arm support and reducing the shape resistance pressure drop of a foam concrete pumping path.

Preferably, a driving device is mounted on the second slide rail or the winch support, and the driving device is in transmission connection with the winch container and is suitable for driving the winch container to rotate; the driving device is an electric motor, a gas engine or a fuel engine, and drives the winch storage device to rotate around through a belt and other transmission modes for winding or unfolding the material guide pipe.

Preferably, the telescopic boom further comprises a blanking pipe or an extension pipe, and the blanking pipe or the extension pipe is laid on one end of the telescopic boom and connected with the material guide pipe; the extension pipe is suitable for extending along the direction of the telescopic boom, the coverage area of pouring operation is increased, the blanking pipe is suitable for the pouring end of the pouring operation, and the pouring end is buried in concrete slurry during pouring, so that sputtering generated during pouring of the foam concrete slurry is avoided, and the pouring quality is prevented from being influenced.

Preferably, the main frame is provided with a foaming system, the first interface a is connected with a rotary joint, and a discharge end of the foaming system is communicated with the rotary joint through a connecting pipe; the foaming system sets up on the body frame, and the foaming system moves along with the removal of body frame on the one hand, convenient to use, and the discharge end of on the other hand foaming system is to the foam concrete length invariant between pouring the end, has guaranteed to pour the quality.

Preferably, the system further comprises a chassis, wherein the chassis comprises a moving device, and the main frame is installed on the chassis; the arrangement of the moving device is beneficial to the movement of the material distributing machine, so that the material distributing machine is suitable for various terrains.

The embodiment of the invention at least has the following advantages:

1. compared with a folding type distributing machine, the foam concrete distributing machine in the embodiment has no folding joint, so that the form resistance pressure drop caused by the folding joint does not exist, and the form resistance pressure drop in a pumping path is reduced by optimizing the pumping path of the foam concrete in the embodiment. The pumping path includes at least a guide tube and a hollow tube.

2. Compared with a belt type distributing machine, the foam concrete distributing machine in the embodiment adopts a pipeline type pumping path and is suitable for conveying foam concrete slurry. The pipeline type pumping path has the advantages of good sealing performance and the like, and avoids direct contact of foam concrete slurry and air, and partial foam can overflow and disperse in the air due to the direct contact of the foam concrete slurry and the air, so that the pouring quality can be influenced.

3. The quality of air holes cast by the foam concrete is related to the length of a pumping route of the foam concrete, and on the premise that the quality of the mixed foam concrete is certain, the air holes cast by the foam concrete pumped by 60 meters are different from the air holes cast by the foam concrete pumped by 50 meters, so that the uniformity of the air holes on different casting surfaces is influenced. In the embodiment, the foaming system is arranged on the main frame, the length from the discharge end of the foaming system to the foam concrete pouring end is constant, the uniformity of air holes on different pouring surfaces is ensured, and the construction quality is improved.

Drawings

Fig. 1 is a schematic structural view of a telescopic boom of the foam concrete spreader in the embodiment when contracted;

fig. 2 is a schematic structural view of the telescopic boom of the foam concrete spreader in the embodiment when partially extended;

FIG. 3 is a schematic structural view of the tail end of the foam concrete spreader after the counterweight is removed therefrom in this embodiment;

FIG. 4 is a schematic structural view of one side of the foam concrete spreader in this embodiment;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic structural view of the other side of the foam concrete spreader in FIG. 4;

fig. 7 is a schematic partial structure diagram of the head end of the telescopic boom in this embodiment;

FIG. 8 is an axial cross-sectional view of the winch receiver of the embodiment;

FIG. 9 is a radial cross-sectional view taken along line a-a' of FIG. 8;

FIG. 10 is a schematic cross-sectional view of a fixing groove in another embodiment;

FIG. 11 is a schematic cross-sectional view of a fixing groove in another embodiment;

FIG. 12 is a schematic partial structure diagram of a head end of a telescopic boom in another embodiment;

FIG. 13 is a schematic cross-sectional view of a fixing groove in another embodiment;

FIG. 14 is a schematic structural view of one side of a foam concrete spreader in another embodiment;

FIG. 15 is an axial cross-sectional view of another embodiment winch receiver;

fig. 16 is a sectional view of a telescopic boom in another embodiment.

The reference numbers in the figures illustrate:

1. a main frame; 2. a telescopic arm support; 2a, a first arm support; 2b, an Nth arm support; 3. a winch receiver; 3a, a profile structure; 3b, bending the profile; 4. a material guide pipe; 5. a blanking pipe; 6. a variable amplitude oil cylinder; 7. a first slide rail; 8. a balancing weight; 9. a chassis; 10. a first drive lever; 11. fixing grooves; 11a, a first pitch roller frame; 11b, an Nth roller frame; 12. a second slide rail; 13. a winch support; 14. a second drive lever; 15. a drive device; 16. a hollow tube; 16a, a first interface; 16b, a second interface; 17. a rotary joint; 18. a foaming system; 19. a connecting pipe; 20. a hydraulic system; 21. a control system; 22. a support leg; 23. a carrier roller assembly; 24. a telescopic oil cylinder; 25. an extension tube; 26. and (4) a groove.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The embodiment of the invention aims to provide a foam concrete spreader, which adopts a telescopic boom frame 2, and a material guide pipe 4 on a winch receiver 3 is synchronously unfolded or wound along with the telescopic boom frame 2, so that compared with a folding spreader, the foam concrete spreader reduces the form resistance pressure drop of a foam concrete pumping path and improves the pouring quality.

For better technical solutions, the technical solutions will be described in detail below with reference to the drawings and specific embodiments of the specification. For convenience of understanding, the basic drawing will be described in the present specification with fig. 3 as an orientation, and the extending direction of the telescopic boom 2 in fig. 3 is a head end. And a tail end opposite to the head end is provided, the left-hand side facing the head end is a left end, and a right end opposite to the left end is provided, as shown in fig. 3, the foaming system 18 is positioned at the left side of the telescopic arm support 2.

Example 1

As shown in fig. 1-2, the technical solution adopted by the embodiment of the present invention is: provides a foam concrete spreader, which comprises a main frame 1;

one end of the telescopic arm frame 2 is hinged with the main frame 1, and the other end of the telescopic arm frame is a free end suitable for being telescopic;

one end of the amplitude variation oil cylinder 6 is hinged with the telescopic arm frame 2, and the other end is hinged with the main frame 1;

a winch receiver 3 rotatably mounted on the main frame 1, a hollow tube 16 being provided in the winch receiver 3, a first interface 16a and a second interface 16b being provided at both ends of the hollow tube 16, respectively, the first interface 16a being located at a rotation center of the winch receiver 3, the second interface 16b being located on an outer circumferential surface of the winch receiver 3;

and the material guide pipe 4 is partially wound on the circumference of the winch container 3, the material guide pipe 4 is partially laid along the telescopic arm support 2, one end of the material guide pipe 4 is connected with the second connector 16b, and the other end of the material guide pipe 4 synchronously moves along with the free end of the telescopic arm support 2.

Further, in this embodiment, the main frame 1, the telescopic boom 2, and the luffing cylinder 6 form a multi-degree-of-freedom telescopic boom structure, wherein the telescopic boom 2 extends or contracts in the extending direction, and the luffing cylinder 6 is used for moving the luffing cylinder and adjusting the height of the free end of the telescopic boom 2. The reel container 3 is used for rolling up the material guiding pipe 4, and the whole reel container 3 is of a cylindrical or truncated cone structure.

Furthermore, the telescopic boom 2 is extended and retracted synchronously with the winding of the winch container 3, that is, when the telescopic boom 2 is extended, the material guiding pipe 4 moves along with the extension of the telescopic boom 2, and the winch container 3 rotates synchronously to unfold the material guiding pipe 4 on the outer peripheral surface. When the telescopic arm support 2 is contracted, the winch container 3 synchronously rotates in the opposite direction to roll up the material guide pipe 4.

Furthermore, the mutual positions of the amplitude variation oil cylinder 6 and the telescopic arm frame 2 are different, and the amplitude variation oil cylinder can be divided into a front-mounted type, a rear-mounted type and a rear-pulling type. In the embodiment, the front amplitude variation oil cylinder 6 is adopted, the required thrust is small, and the stress of a crane arm can be improved. In another embodiment, the preposed luffing cylinder 6 in the embodiment can be replaced by a postpositioned or pullback luffing cylinder 6.

Further, the inner diameter of the guide tube 4 is 50-150mm, and 100mm is selected in this embodiment. The outer diameter of the winch container 3 is between 0.6 and 2.5m, preferably between 1.0 and 1.8 m. The capstan receiver 3 has a spiral profile 3a on its outer surface, a spiral trough line is fitted to the outer diameter of the guide tube 4, and the guide tube 4 wound on the surface of the capstan receiver 3 is fitted to the profile 3 a.

As shown in fig. 3 to 6, the winch container 3 of the main frame 1 is horizontally provided in the left-right direction. As shown in fig. 8, the winch receptacle 3 is a solid structure, and the hollow tube 16 is a cavity provided in the solid structure. The first port 16a of the hollow tube 16 is provided at the center in the radial direction of the right end of the winch receiver 3. The second port 16b of the hollow tube 16 is disposed on the leftmost surface of the outer periphery of the winch receiver 3, so that the stroke of the hollow tube 16 is increased, and the shape resistance pressure drop of the hollow tube 16 is reduced conveniently.

Specifically, the path of the hollow tube 16 is divided into the horizontal direction and the vertical direction, and as can be seen from fig. 8, the hollow tube 16 has a curved structure in the horizontal direction, and the radius of the curve is not smaller than the outer circumferential radius of the winch receiver 3. As shown in fig. 9, the hollow tube 16 also has a curved structure in the vertical direction, and the curved joint is used to reduce the bending angle of the second joint 16b connected to the guide tube 4.

Further, a bending contour 3b is further provided on the outer peripheral surface of the winch receiver 3, and the bending contour 3b has a transitional curve for guiding the material guiding pipe 4 of the contour structure 3a to the second port 16b, so as to reduce the bending of the material guiding pipe 4 connected to the second port 16 b.

Specifically, the telescopic boom frame 2 comprises a plurality of boom frames connected with each other, wherein one end of one boom frame forms a free end of the telescopic boom frame 2, and a telescopic oil cylinder 24 is arranged between adjacent boom frames.

Specifically, each arm support comprises a cylinder.

Further, the telescopic arm support 2 comprises a plurality of arm supports connected together one by one, and the telescopic oil cylinder 24 is installed in the cylinder bodies of the plurality of arm supports. Taking fig. 7 as an example, the first arm support 2a and the second arm support are connected to each other, one end of a telescopic cylinder 24 between the first arm support and the second arm support is connected to the inner wall of the cylinder of the first arm support 2a, the other end of the telescopic cylinder 24 is connected to the inner wall of the cylinder of the second arm support, and the telescopic cylinder 24 drives the first arm support 2a and the second arm support to extend or contract.

Specifically, the telescopic arm support 2 is provided with a fixing part, the fixing part is provided with a moving channel, and the material guide pipe 4 is partially laid on the moving channel. The fixing portion is disposed to constrain a moving path of the material guiding tube 5, so that the material guiding tube 5 moves along a predetermined path, which is parallel to an axis of the telescopic boom 2 in this embodiment.

Further, the fixing part in this embodiment is a straight groove-shaped structure, the straight line is parallel to the axis of the telescopic boom, the fixing part includes a plurality of fixing grooves 11, and each fixing groove 11 is installed on each boom in a one-to-one correspondence manner; the plurality of fixing grooves 11 together constitute a moving passage.

Further, in this embodiment, each fixing slot 11 is correspondingly installed at the head end of each arm support, taking fig. 7 as an example, the first pitch roller frame 11a is correspondingly installed on the first pitch arm support 2a, the second pitch roller frame is correspondingly installed on the second pitch arm support, the nth pitch roller frame 11b is correspondingly installed on the nth pitch roller frame 2b, the second pitch roller frame moves synchronously with the second pitch arm support, the moved first pitch roller frame 11a and the second pitch roller frame are arranged in a gap, and the material guiding pipe 4 arranged between the first pitch roller frame 11a and the second pitch roller frame is suspended in the air. After the first section of arm frame 2a and the second section of arm frame are contracted, the first section of roller frame 11a is abutted against the second section of roller frame end to end or a gap exists between the first section of roller frame and the second section of roller frame end to end.

Specifically, in this embodiment, a plurality of carrier roller assemblies 23 are installed in the fixing groove 11 of the first arm support 2a, and the cross-sectional shapes of the carrier roller assemblies 23 are linear, that is, a transmission roller way is constructed.

In another embodiment, as shown in fig. 12, the fixing portion includes a plurality of fixing grooves 11, and each fixing groove 11 is correspondingly installed on each arm support. The plurality of fixing grooves 11 are sequentially connected end to end, after the telescopic arm support 2 contracts, the fixing grooves 11 contract along with the arm support, and a cross-sectional view of the contracted fixing grooves 11 is shown in fig. 13.

In another embodiment, as shown in fig. 11, the idler assembly 23 is V-shaped in cross-section.

Specifically, as shown in fig. 4, the foam concrete distributor further comprises a counterweight 8, and the counterweight 8 is installed at the tail end of the main frame 1.

Further, balancing weight 8 is the focus that is used for balanced cloth machine, because stretching out or shrink of flexible cantilever crane 2, leads to cloth machine's focus unbalance easily, so balancing weight 8 corresponds the tail end that sets up at body frame 1, with the head and the tail of flexible cantilever crane 2 answer.

Specifically, as shown in fig. 3, a first slide rail 7 and a first driving rod 10 are installed on the main frame 1, the first slide rail 7 is installed at the tail end of the main frame 1, the counterweight block 8 is installed on the first slide rail 7, and the first driving rod 10 is suitable for driving the first slide rail 7 to move towards the direction close to or away from the telescopic boom 2.

Further, the arrangement of the first slide rail 7 is used for increasing the distance between the counterweight block 8 and the telescopic arm support 2, so that the moment is prolonged. The first driving rod 10 is provided to dynamically adjust the fore-and-aft or front-to-back position of the weight 8.

Specifically, the main frame 1 is provided with a second slide rail 12 and a second driving rod 14, the second slide rail 12 is provided with a winch support 13, the winch container 3 is mounted on the winch support 13, and the second driving rod 14 is adapted to drive the second slide rail 12 to move along the rotation axis direction of the winch container 3.

Further, in the present embodiment, the winch container 3 is horizontally disposed in the left-right direction, and the second interface 16b is located on the outer peripheral surface of the left side of the winch container 3. When the winch container 3 is wound with the material guide pipe 4, the bending angle of the material guide pipe 4 between the winch container and the telescopic arm support 2 can change the amplitude, and the change of the bending angle can affect the foam quality in the foam concrete and finally the pouring quality. Therefore, the second slide rail 12 and the second driving rod 14 are provided, and the winch receiver 3 is attached to the material guide pipe 4, and simultaneously, the winch support 13 is driven by the second driving rod 14 to move synchronously, so that the winch receiver 3 is moved synchronously, and the bending angle amplitude of the material guide pipe 4 is reduced.

In another embodiment, the winch container 3 is horizontally disposed in the fore-and-aft direction, the second slide rail 12 is disposed along the axial direction of the winch container 3, or the second slide rail 12 is disposed parallel to the central axis of the winch container 3.

Specifically, the driving device 15 is installed on the second slide rail 12, and the driving device 15 is in transmission connection with the winch container 3 and is suitable for driving the winch container 3 to rotate.

In another embodiment, the drive means is mounted on or in winch support 13, and drive means 13 is drivingly connected to winch receptacle 3 and is adapted to drive winch receptacle 3 in rotation.

Further, the driving device 15 is an electric motor, a gas engine, or a fuel engine, and drives the winch container 3 to rotate around through a transmission form such as a belt, so as to wind or unwind the material guiding pipe 4. In the present embodiment, the driving device 15 employs a motor.

Specifically, as shown in fig. 7, the foam concrete distributor further includes a blanking pipe 5 or an extension pipe 25, and the blanking pipe 5 or the extension pipe 25 is connected to the free end of the material guiding pipe 4.

Furthermore, the pouring end of the foam concrete comprises the following types, wherein one type is that the free end of the material guide pipe 4 naturally droops, and the free end of the material guide pipe 4 is used as the pouring end; the other is that the free end of the material guiding pipe 4 is arranged at the free end of the telescopic arm support 2, namely the material guiding pipe 4 is arranged at the head end of the N-th arm support 2b and is connected with the blanking pipe 5 through a flange, the blanking pipe 5 naturally droops, and the other end of the blanking pipe 5 is used as a pouring end; the other is that the free end of the material guide pipe 4 is arranged at the free end of the telescopic arm support 2, an extension pipe is additionally arranged at the free end of the telescopic arm support 2, one part of the extension pipe is extended along the extending direction of the telescopic arm support 2, the other part of the extension pipe naturally droops, one end of the extension pipe is connected with the material guide pipe 4, and the other end of the extension pipe is used as a pouring end of the foam concrete.

Specifically, the device further comprises a chassis 9, the chassis 9 comprises a moving device, and the main frame 1 is installed on the chassis 9.

Furthermore, a moving device on the chassis 9 adopts a crawler-type structure, and the main frame 1 can rotate around 360 degrees on the chassis 9 and can move through a crawler.

Furthermore, the chassis 9 is provided with a support leg 22, and the support leg 22 is used for increasing the span and can stand stably when the foam concrete is pumped for a long distance without overturning.

In another embodiment, the moving device in the chassis 9 can be a rail-type moving device, a wheel-type moving device or a surface moving device, and the surface moving device comprises a pontoon and a barge.

Specifically, the main frame 1 is further provided with a hydraulic system 20 and a control system 21, the control system 21 controls the hydraulic system 20 to respectively drive the luffing cylinder 6, the first drive rod 10, the second drive rod 14 and the telescopic cylinder 24, and the control system 21 can also directly or indirectly control the drive device 15, the support leg 22 and other components to work.

The principle of use of this embodiment is as follows:

the foaming system 18 is arranged outside, the connecting pipe 19 is of a three-way structure, one end of the connecting pipe 19 is connected with the discharging end of the foaming system 18, the other end of the connecting pipe 19 is communicated with the rotary joint 17 connected to the first connector 16a, the rest end of the connecting pipe 19 is a cement slurry feeding end, foam from the foaming system 18 and cement slurry are mixed in the connecting pipe 19 to form foam concrete slurry, and the foam concrete slurry sequentially passes through the rotary joint 17, the hollow pipe 16 and the guide pipe 4 from one end of the connecting pipe 19 until the foam concrete slurry is conveyed to the pouring end of the foam concrete.

During pouring, with the change of the pouring position of the distributing machine, the foaming system 18 is moved synchronously when the distributing machine is moved, or the distributing machine is moved, and a pipeline is added between the foaming system 18 and the first port 16a to prolong a pumping path.

In another embodiment the foaming system 18 is mounted on the main frame 1, the foaming system 18 following the spreader movement. The connecting pipe 19 has a three-way structure, one end of the connecting pipe 19 is connected with the discharge end of the foaming system 18, the other end of the connecting pipe 19 is communicated with the rotary joint 17 connected to the first connector 16a, and the remaining end of the connecting pipe 19 is the feeding end of cement slurry. The foam from the foaming system 18 and the cement slurry are mixed in the connecting pipe 19 to form foam concrete slurry, and the foam concrete slurry sequentially passes through at least the rotary joint 17, the hollow pipe 16 and the material guide pipe 4 from one end of the connecting pipe 19 until being conveyed to the pouring end of the foam concrete. Wherein, the length of the pump output path of the foam concrete from the discharge end of the connecting pipe 19 to the pouring end of the foam concrete is a fixed value.

Specifically, a carrier roller assembly 23 is hung on each fixed groove 11, the material guide pipe 4 is attached to each carrier roller assembly 23, the foam concrete slurry sequentially passes through at least the rotary joint 17, the hollow pipe 16 and the material guide pipe 4 from one end of the connecting pipe 19 until being conveyed to the pouring end of the foam concrete, and the length from the discharge end of the foaming system 18 to the pouring end of the foam concrete is 7-50m, preferably 10-25 m.

In another embodiment, the idler assembly 23 is suspended only on the fixing groove 11 of the first arm support 2a, the guide tube 4 on the first arm support 2a is relatively displaced from the inner wall of the fixing groove 11, and the idler assembly 23 is provided to reduce the relative friction between the guide tube 11 and the inner wall surface of the fixing groove 11. During the movement of the guide tube 11, the idler on the idler assembly 23 rotates to reduce friction.

In another embodiment, winch receptacle 3 is vertically disposed, followed by second slide rail 12 and second drive rod 14.

In another embodiment, as shown in fig. 10, the cross-sectional shape of the idler assembly 23 in this embodiment is U-shaped.

In another embodiment, as shown in fig. 16, the arm support is hollow inside, and the hollow area is used for being installed on the telescopic oil cylinder 24. The fixing part in this embodiment includes a plurality of grooves 26, a groove 26 is formed at the upper edge of each arm support, the plurality of grooves 26 together form a linear groove-shaped structure, and the groove-shaped structure forms a moving channel for the material guiding pipe 5 to be laid, so as to limit the movement of the material guiding pipe 5.

In another embodiment, the fixing part comprises a plurality of fixing frames, each fixing frame is installed at the head end of each arm support in a one-to-one correspondence mode, and the size and the inner diameter of each fixing frame are consistent. Extension lines between the fixed frame and the inner wall of the fixed frame jointly form a moving channel, and the material guide pipe 5 is laid in the moving channel and used for limiting the movement of the material guide pipe 5.

In another embodiment, the telescopic cylinder 24 is disposed on the surface of the telescopic arm support 2, and the space inside the cylinder is used for moving the material guiding pipe 4. Specifically, as shown in fig. 14, each arm support includes a cylinder, the telescopic cylinder 24 is installed on the outer surface of the cylinder, the cylinder forms an internal channel, and part of the material guiding pipes 4 are laid in the internal channel. In this embodiment, the inner channel serves as a fixing part, that is, the inner channel is used for restricting a moving path of the material guiding pipe so that the material guiding pipe moves along a predetermined path, and the predetermined path is parallel to an axis of the telescopic boom.

In another embodiment, as shown in fig. 15, the winch container 3 of this embodiment is a hollow structure, which is used to reduce the weight of the winch container 3 and facilitate the driving device 15 to drive it to rotate. Two hollow pipes 16 are arranged inside the winch container 3, the hollow pipes 16 have circular pipe walls, the two hollow pipes 16 are arranged in a central symmetry mode by taking the center of gravity of the winch container 3 as a center, and the two first connectors 16a belong to the radial centers of the two ends of the winch container 3.

Further, the two hollow pipes 16 are provided for facilitating connection of the foaming system 18 positioned on the left or right side of the winch container 3, and for balancing the structural center of the winch container 3, thereby reducing vibration generated by rotation of the winch container 3.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. A foam concrete spreader is characterized by comprising

A main frame (1);

one end of the telescopic arm support (2) is hinged with the main frame (1), and the other end of the telescopic arm support is a free end suitable for being telescopic;

one end of the amplitude variation oil cylinder (6) is hinged with the telescopic arm support (2), and the other end of the amplitude variation oil cylinder is hinged with the main frame (1);

the winch container (3) is rotatably installed on the main frame (1), a hollow pipe (16) is arranged in the winch container (3), two ends of the hollow pipe (16) are respectively provided with a first interface (16a) and a second interface (16b), the first interface (16a) is positioned at the rotating center of the winch container (3), and the second interface (16b) is positioned on the outer peripheral surface of the winch container (3);

the material guiding pipe (4) is partially wound on the circumference of the winch container (3), the material guiding pipe (4) is partially laid along the telescopic arm support (2), one end of the material guiding pipe (4) is connected with the second connector (16b), and the other end of the material guiding pipe moves synchronously with the free end of the telescopic arm support (2).

2. The foam concrete spreader of claim 1, wherein: the telescopic arm support (2) comprises a plurality of arm supports which are connected with each other, one end of one arm support forms a free end of the telescopic arm support (2), and a telescopic oil cylinder (24) is arranged between every two adjacent arm supports.

3. The foam concrete spreader of claim 2, wherein: the arm supports comprise cylinder bodies, the telescopic oil cylinders (24) are arranged on the outer surfaces of the cylinder bodies, the cylinder bodies of the arm supports form an internal channel, and the material guide pipes (4) are partially laid in the internal channel.

4. The foam concrete spreader of claim 1, wherein: the telescopic arm support (2) is provided with a fixing part, the fixing part is provided with a moving channel, and the material guide pipe (4) is partially laid on the moving channel.

5. The foam concrete spreader of claim 4, wherein: the fixing part comprises a plurality of fixing grooves (11), and each fixing groove (11) is correspondingly arranged on each arm support.

6. The foam concrete spreader of claim 5, wherein: the fixed grooves (11) are provided with carrier roller assemblies (23), and the material guide pipes (4) are attached to each carrier roller assembly (23).

7. The foam concrete spreader of claim 1, wherein: the main frame is characterized by further comprising a balancing weight (8), wherein the balancing weight (8) is installed at the tail end of the main frame (1).

8. The foam concrete spreader of claim 7, wherein: install first slide rail (7) and first actuating lever (10) on body frame (1), first slide rail (7) are installed the tail end of body frame (1), balancing weight (8) are installed on first slide rail (7), first actuating lever (10) are suitable for the drive first slide rail (7) are to being close to or keeping away from the direction removal of flexible cantilever crane (2).

9. The foam concrete spreader of claim 1, wherein: install second slide rail (12) and second actuating lever (14) on body frame (1), install capstan winch support (13) on second slide rail (12), install capstan winch storage device (3) on capstan winch support (13), second actuating lever (14) are suitable for the drive second slide rail (12) are followed the axis of rotation direction of capstan winch storage device (3) removes.

10. The foam concrete spreader of claim 9, wherein: and a driving device (15) is arranged on the second sliding rail (12) or the winch support (13), and the driving device (15) is in transmission connection with the winch container (3) and is suitable for driving the winch container (3) to rotate.

11. The foam concrete spreader of any one of claims 1-10, wherein: the telescopic boom is characterized by further comprising a blanking pipe (5) or an extension pipe (25), wherein the blanking pipe (5) or the extension pipe (25) is connected with one end of the material guide pipe (4) laid on the telescopic boom (2).

12. The foam concrete spreader of claim 11, wherein: install foaming system (18) on body frame (1), first interface (16a) are connected with rotary joint (17), the discharge end of foaming system (18) through a connecting pipe (19) with rotary joint (17) intercommunication.

13. The foam concrete spreader of claim 12, wherein: the main frame is characterized by further comprising a chassis (9), wherein the chassis (9) comprises a moving device, and the main frame (1) is installed on the chassis (9).