CN215319552U

CN215319552U - Concrete mixing conveyor

Info

Publication number: CN215319552U
Application number: CN202120446026.4U
Authority: CN
Inventors: 王守忠
Original assignee: Xinxiang Dongfeng Xinda Heavy Industry Co ltd
Current assignee: Xinxiang Dongfeng Xinda Heavy Industry Co ltd
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-12-28
Anticipated expiration: 2031-03-01

Abstract

The application provides a concrete mixing and conveying device, which is characterized in that a plurality of containers for distributing concrete raw materials are arranged according to the production requirements of concrete, and the quantitative and continuous distribution of the concrete raw materials is realized through a fixed meter; in the stirring stage, a stirring mechanism with a helical blade at one end and a stirring arm and a stirring blade at one end is adopted, and the control and the continuous supply of the concrete stirring time are realized by adjusting the structure and the position of a shell of the stirrer, the output port of the shell and the stirring mechanism; the concrete mixer obviously improves the supply capacity and the concrete quality of concrete, integrates stirring production and conveying, avoids dust generated in the raw material feeding process, reduces the loss of raw materials, avoids producing a large amount of pollution to the production environment, and ensures the health of operators.

Description

Concrete mixing conveyor

Technical Field

The application relates to the technical field of constructional engineering, in particular to a concrete mixing and conveying device capable of continuously supplying concrete.

Background

The existing concrete stirring device usually comprises a stirring barrel and a hopper, when the stirring device works, cement, sand, stones and other raw materials are firstly put into the hopper, then a proper amount of raw materials are put into the stirring barrel through the hopper, a proper amount of water is added for full stirring, and after the stirring is finished, the stirred concrete is output from the stirring barrel. For example:

chinese patent CN201244862Y discloses a horizontal concrete mixer, as shown in fig. 1 of CN201244862Y, the mixed raw materials are pushed into the mixer by a hopper through a screw propulsion device, and are discharged after being mixed. The spiral propelling device of the patent cannot realize automatic quantitative pushing of materials; in the stirring stage, the conventional stirring device adopted cannot regulate and control the stirring time, so that the stirring quality of the concrete is difficult to control. And the stirrer is complicated in structure, is only suitable for underground roadway operation, and cannot be applied to mobile platforms such as pump trucks.

Chinese patent CN87212387U discloses a continuous concrete mixer, as shown in fig. 2 of CN87212387U, the mixed raw materials are pushed into the mixer laterally by a quantitative screw from a hopper, and are mixed by a mixer and then discharged. The quantitative screw of the patent can only carry out metering and pushing on the mixed raw materials, and cannot solve the problem of quantitative conveying of the concrete raw materials at the batching stage; in the stirring stage, because the conventional stirrer is adopted by the stirrer, the mixing and conveying capacity of concrete is limited, and the stirring time cannot be regulated and controlled by the stirrer, so that the stirring quality and the mixing quality of the concrete are difficult to control. And the mixer can not slide back and forth, which brings inconvenience to the transportation of the pump truck.

Chinese patent CN212193667U discloses a mobile continuous concrete mixing plant, as shown in fig. 1 of CN212193667U, this patent adopts a raw material metering conveyer belt to realize quantitative conveying of concrete raw materials, although the metering function can be realized, the structure of the conveyer belt is complex, and it is easy to malfunction, and the practicability is poor. The structure layout of the stirring device in the adopted spiral stirrer is unreasonable, and the stirring time cannot be regulated and controlled by the stirrer, so that the stirring quality and the mixing quality of the concrete are difficult to control, and the concrete preparation and conveying capacity is limited. The mixer can not slide back and forth, which brings inconvenience to the transportation of the pump truck.

Chinese patent CN206475299U discloses a continuous concrete mixing device for construction site, as shown in fig. 1 of CN206475299U, which cannot realize automatic quantitative delivery of dry materials; and the structure of the mixer is complex, the sectional type internal design of a spiral, a mixing arm and a mixing blade is not adopted, and the mixing time cannot be regulated and controlled by the mixer, so that the mixing quality and the mixing quality of concrete are difficult to control, the concrete preparation and conveying capacity is limited, and the mixer is only suitable for fixed places such as the ground and cannot be applied to mobile platforms such as pump trucks.

Russian patent RU2136492C1 discloses an apparatus for preparing a foamed concrete mixture, as shown in fig. 1 of RU2136492C1, having a foam generator made in the form of a spiral and connected to a tank of constant level and to a foam feeding assembly. This equipment sets up in fixed platform, can't realize the automatic ration of concrete raw materials and deliver, and the mixer structure is complicated, also can't realize the regulation and control to stirring time through the mixer, leads to the stirring quality of concrete, mixes the quality and is difficult to control from this, and the mixer can't follow endwise slip, can't use moving platform such as pump truck.

Although the technical problems of low efficiency and incapability of quantitative distribution in the concrete preparation process can be solved to a certain extent by the technology, the adopted stirring and conveying device still has a complex structure, cannot realize quantitative distribution in the batching stage, and cannot preset stirring time according to the quality of concrete in the stirring stage, so that the supply capacity and the quality of the concrete cannot be guaranteed, dust and raw material loss are easily generated in the production process, environmental pollution is caused, and the physical health of operators cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the present application provides a concrete mixing and conveying device, which can set a plurality of containers for distributing concrete raw materials according to different formulations of concrete in a batching stage according to production requirements, and realize quantitative and continuous distribution of the concrete raw materials by a fixed meter; in the stirring stage, and according to the quality requirement of concrete, adopt one end to be provided with helical blade, the one end is provided with the rabbling mechanism of rabbling arm and stirring leaf, through adjustment mixer casing, the structure and the position of casing delivery outlet and rabbling mechanism, realize control and continuous supply to concrete mixing time, show the supply capacity and the concrete quality that improve the concrete, make stirring production and transport integration simultaneously, avoid the dust that the raw materials input the process and produce, reduce the loss of raw materials, avoid producing the production environment and produce a large amount of pollutions, guarantee operating personnel's healthy.

The invention purpose of this application is realized through the following technical scheme:

scheme 1. a concrete mixing conveyor, mixing conveyor includes hopper and mixer, its characterized in that:

the hopper comprises one or more containers, a solid meter is correspondingly arranged below each container, and the containers are communicated with the stirrer through the solid meters; the solid meter is used for conveying raw materials for preparing concrete from the container to the mixer in a quantitative mode;

the stirrer comprises a shell and a stirring mechanism positioned in the shell;

the housing having a housing input port and a housing output port;

the stirring mechanism comprises a driving shaft, a helical blade, a stirring arm and a stirring blade;

the helical blade is connected with the driving shaft and is arranged on one side close to the input port of the shell;

the stirring blade is connected with the driving shaft through a stirring arm and is arranged on one side close to the output port of the shell.

Scheme 2. the stirring and conveying apparatus according to scheme 1,

the solid meter is a spiral meter and comprises a spiral metering sheet, a metering driving shaft and a metering motor;

the spiral metering sheet is fixedly connected with the metering driving shaft;

the metering motor drives the spiral metering sheet to rotate through the metering driving shaft.

Scheme 3. the stirring conveyor of scheme 2, characterized by, at least one limit of the feed inlet of screw meter designs for the arc structure.

Scheme 4. the stirring and conveying device according to scheme 1, wherein the housing outlet is arranged on the circumferential side wall adjacent to one end of the housing or on the end side wall at one end of the housing at a preset height.

The agitation and conveyance apparatus according to claim 5, wherein the agitation and conveyance apparatus further comprises a stirring member,

when the shell outlet is arranged on the circumferential side wall adjacent to one end of the shell, a shell outlet cover is arranged outside the shell outlet;

when the shell output port is arranged on the side wall of the end part of one end of the shell at a preset height, an output port height adjusting device is correspondingly arranged at the position of the shell output port and used for adjusting the height of the shell output port relative to the horizontal plane.

The stirring and conveying device according to claim 1, wherein the circumferential side wall of the housing is provided with inspection and maintenance holes.

Scheme 7. the stirring and conveying apparatus according to scheme 1,

the stirring and conveying device also comprises a pump truck, and the pump truck comprises a pump truck chassis, a hydraulic oil cylinder and a pump truck hopper;

the pump truck hopper is arranged on the pump truck chassis;

the stirrer is movably arranged on the hopper of the pump truck through a sliding mechanism under the driving of the hydraulic oil cylinder.

The stirring and conveying device according to claim 8, wherein the sliding mechanism comprises a sliding guide hole arranged on a hopper of the pump truck;

and the shell of the stirrer penetrates through the sliding guide hole and slides relative to the hopper of the pump truck under the driving of the hydraulic oil cylinder.

The agitation and conveyance apparatus according to claim 9, wherein,

the pump truck hopper also comprises a pump truck hopper baffle;

the pump truck hopper baffle is hinged to the pump truck hopper and matched with the sliding guide hole in shape; or the like, or, alternatively,

the pump truck hopper baffle is hinged to one end of an output port of the shell of the mixer, and the pump truck hopper slides in sealing fit with the tail end of the mixer to prevent concrete from overflowing from the pump truck hopper.

Scheme 10. the stirring conveyor of scheme 7, characterized by, still include stabilising arrangement, said stabilising arrangement includes slide bar and sliding sleeve;

the sliding rod is fixedly arranged on the hopper; the sliding sleeve is fixedly arranged on the pump truck chassis or the pump truck hopper, or the sliding sleeve and the pump truck hopper form an integrated structure;

when the blender moves along the sliding mechanism, the sliding rod slides in the sliding sleeve, thereby enhancing the stability of the blender movement.

The stirring and conveying device according to claim 10, wherein the stabilizing device further comprises a stabilizing rod;

the stabilizer bar is fixedly arranged at the downstream end part of the shell of the stirrer and extends along the axial direction of the shell of the stirrer.

Solution 12. the mixing and conveying device according to solution 7, further comprising a support structure that opens and rests on the ground or other fixed location when the mixing and conveying device is moved to the rear of the pump truck.

Scheme 13. the stirring and conveying device according to scheme 12, wherein the supporting structure is a hydraulic mechanism and comprises a hydraulic oil cylinder and supporting legs.

According to the concrete stirring and conveying device, a plurality of containers for distributing concrete raw materials can be arranged according to different formulations of concrete in a batching stage according to production requirements, and the quantitative continuous distribution of the concrete raw materials is realized through a fixed metering device; in the stirring stage, and according to the quality requirement of concrete, adopt one end to be provided with helical blade, the one end is provided with the rabbling mechanism of rabbling arm and stirring leaf, through adjustment mixer casing, the structure and the position of casing delivery outlet and rabbling mechanism, realize control and continuous supply to concrete mixing time, show the supply capacity and the concrete quality that improve the concrete, make stirring production and transport integration simultaneously, avoid the dust that the raw materials input the process and produce, reduce the loss of raw materials, avoid producing the production environment and produce a large amount of pollutions, guarantee operating personnel's healthy.

Drawings

FIG. 1 is a front view of a concrete mixing delivery apparatus according to an embodiment of the present application;

FIG. 2 is a left side view of the concrete mixing delivery apparatus of an embodiment of the present application;

FIG. 3 is a schematic view of a concrete mixing and conveying apparatus according to an embodiment of the present application in a transport state;

FIG. 4 is a schematic view illustrating an operation state of the concrete mixing and conveying apparatus according to the embodiment of the present application;

FIG. 5 is a perspective view of a concrete mixing and conveying apparatus according to an embodiment of the present disclosure in a transport state;

FIG. 6 is a perspective view of the concrete mixing and conveying apparatus according to the embodiment of the present application;

FIG. 7 is a schematic perspective view of another exemplary embodiment of a concrete mixing and delivery apparatus;

FIG. 8 is a rear view of the concrete mixing delivery apparatus of an embodiment of the present application;

FIG. 9 is a schematic view of another mixer for a concrete mixing apparatus according to an embodiment of the present application;

Detailed Description

To further explain the technical means and effects adopted by the present application to achieve the intended purpose, the following detailed description is given to the specific structure and effects of the present application in conjunction with the accompanying drawings and embodiments. Hereinafter, the terms "first", "second", … …, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated and not as limiting the order of the technical features. Thus, features defined as "first," "second," … …, etc. may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specified.

The embodiment of the application provides a concrete mixing conveyor, mainly used provides or carries the concrete to the building site. The agitation and transportation device can be mounted on a concrete pump truck (also called "pump truck") so that the agitation and transportation device can be conveniently transported and used. In other embodiments, the mixer delivery apparatus may also be provided at a fixed location for providing concrete at the fixed location. FIG. 1 shows a front view of a concrete mixing delivery apparatus according to an embodiment of the present application.

As shown in fig. 1, the agitation and conveyance apparatus includes a hopper 1 and an agitator 2. The hopper 1 may store various raw materials for preparing concrete, including cement, sand, gravel, coal ash, and the like. The mixer 2 is used for receiving the concrete raw materials conveyed by the hopper 1 and continuously conveying the mixed concrete to an output port of the shell. The concrete mixing and conveying device of the present application is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the hopper 1 may comprise one or more containers (two

containers

11 and 12, also referred to as a first container 11 and a second container 12, are shown in fig. 2) for storing raw materials for preparing concrete. In one example, the hopper 1 comprises four containers for storing cement, sand, gravel and coal ash, respectively, for example a first container storing cement, a second container storing sand, a third container storing gravel and a fourth container storing coal ash. As can be understood by those skilled in the art, since concrete models are different and solid raw materials for preparing concrete are also different, the hopper 1 can be provided with a number of containers corresponding to the types of the raw materials so as to meet the requirement of feeding corresponding raw materials. As an example, when it is necessary to add aggregate as a concrete raw material on the basis of the foregoing example, the hopper 1 may also be provided with a fifth container for storing the aggregate.

Fig. 2 shows a left side view of the concrete mixer delivery device, wherein a hopper 1 is exemplarily represented, which comprises a first container 11 and a second container 12. The first and second containers are substantially identical in construction. Taking the first container 11 as an example, the first container 11 includes a first container body 111, a first container inlet 112, and a first container outlet 113. The first container body 111 is used for storing concrete raw materials; the first container inlet 112 is provided above the first container body 111, and the concrete raw material is input into the container body from the first container inlet 112; the first container outlet 113 is provided below the first container body 111, and a first solids meter 114 is correspondingly provided below the first container outlet 113, and the first container body 111 communicates with the mixer 2 via the first solids meter 114, and the first solids meter 114 is used for quantitatively conveying the raw materials for preparing the concrete from the container to the mixer 2. Likewise, the second container 12 includes a second container body 121, a second container inlet 122, and a second container outlet 123. A second solids meter 124 is correspondingly disposed below the second vessel outlet 123.

The first solids meter 114 is used to meter the material being input to the blender 2, and in one example, the first solids meter 114 may be a screw meter including a screw metering blade, a metering drive shaft, and a metering motor, wherein the screw metering blade is fixedly connected to the metering drive shaft, the metering motor drives the screw metering blade to rotate via the metering drive shaft, the amount of material is determined by the predetermined angle or number of rotations of the screw metering blade, and the metered material is pushed into the blender 2. For example, the metering motor drives the screw metering blade to rotate one revolution, and the raw material in a single pitch space can be pushed into the mixer, thereby feeding a fixed amount of raw material into the mixer 2. The predetermined angle or number of turns may be determined according to structural parameters of the screw gauge, such as the diameter of the gauge or the pitch of the screw, which is not limited in the present application. In other examples, the solid meter can be of the type known in the art, so that the raw materials can be metered to meet the requirements for preparing concrete. In order to prevent that the raw materials of great particle diameters such as stone from causing the card of spiral metering piece to die when getting into the solid meter by the container, this application has improved the feed inlet of solid meter, designs at least one limit of the feed inlet of solid meter for the arc structure to avoid the raw materials card of great particle diameters such as stone to die spiral metering piece.

The mixer 2 includes a housing 21 and a mixing mechanism located inside the housing 21. The housing 21 is provided with a housing inlet 27 (also referred to as a "feed inlet") and a housing outlet 28 (also referred to as a "discharge outlet"). The outer shape of the housing 21 is cylindrical or cylindrical.

The stirring mechanism comprises a helical blade 22, a driving shaft 23, a driving motor 24, a stirring arm 25 and a stirring blade 26. A driving motor 24 is arranged at the outer side of one end of the shell 21; the helical blade 22 is connected to the drive shaft 23 and is disposed adjacent to the housing input port 27; the stirring blade 26 is connected to the drive shaft 23 via a stirring arm 25 and is disposed on a side adjacent to the housing output port 28. The drive motor 24 rotates the screw blade 22, the stirring arm 25, and the stirring blade 26 via the drive shaft 23, and delivers the concrete to the housing outlet 28 while stirring the concrete.

The structure and operation of the blender 2 will be further described. The housing inlet 27 of the blender 2 is adapted to receive the material being delivered by the hopper 1. A housing inlet 27 may be provided at one end of the housing 21. In one example, the housing input 27 may be provided on an end sidewall at one end of the housing 21. In another example, the housing inlet 27 may be provided on a circumferential sidewall of one end of the housing 21. The housing outlet 28 is used to deliver the mixed concrete, for example to a pump truck hopper. The housing outlet 28 may be provided at the other end of the housing 21, which is the end opposite to the end where the inlet is located. In one example, the housing outlet 28 may be provided on an end side wall at one end of the housing 21, and when the housing outlet 28 is provided on the end side wall, the height of the outlet 28 may be set, and the height of the solid-liquid mixture in the housing 21 is controlled, thereby controlling the stirring time of the solid-liquid mixture. As an example, the housing outlet 28 may be disposed at a predetermined height on an end side wall of one end of the housing, and the predetermined height may be set according to a mixing requirement of concrete, which is not limited in the present application. As another example, the housing outlet 28 may be attached to an end sidewall of one end of the housing by an outlet height adjustment device that adjusts the height of the housing outlet 28 relative to the horizontal, thereby meeting the needs of different concrete mixes. In another example, as shown in FIG. 9, the housing outlet 28 may be provided on a circumferential sidewall adjacent one end of the housing 21. Alternatively, a housing outlet cover (not shown) may be provided outside the housing outlet 28, said cover matching the shape of the housing outlet 28, for example, a plate-shaped part or a square part with the same curvature. The housing outlet cover may be movably mounted to the exterior of the housing outlet 28 by a hinge. As an example, the hinge may be a bolt.

The helical blade 22, the agitating arm 25, and the agitating blade 26 are disposed inside the housing 21 in the longitudinal direction of the housing 21. Wherein, the helical blade 22 is fixedly connected with the driving shaft 23 and is arranged at one side of the shell 21 adjacent to the input port 27 of the shell; one end of the stirring arm 25 is fixedly connected with the driving shaft 23, the other end is fixedly connected with the stirring blade 26, and the stirring arm 25 and the stirring blade 26 are arranged on one side of the shell 21 adjacent to the shell output port 28. For simplicity of description, the side of blender 2 adjacent housing input 27 is referred to herein as the upstream or head end and the side adjacent housing output is referred to as the downstream or tail end. That is, the helical blade 22 is located upstream of the agitating arm 25 and the agitating blade 26. The projection of the mixing blade 26 in the circumferential direction of the casing 21 is a preset included angle relative to the central axis of the casing 21, and the structure enables the mixing blade 26 to convey concrete to the casing output port 28 while mixing the concrete. The preset included angle may be set according to actual needs, for example, 30 °, 45 °, or 60 °, which is not limited in this application.

When the mixer 2 is in operation, the housing inlet 27 receives the solid material delivered by the hopper 1 and the solid material enters the interior of the housing 21. The housing 21 may be externally connected with a water supply line, and water is supplied to the interior of the housing 21 through the water supply line to form a solid-liquid mixture with the solid raw material. The screw blade 22 conveys the solid-liquid mixture to the downstream stirring arm 25 and the stirring blade 26 while stirring the solid-liquid mixture. The stirring arm 25 rotates the stirring blade 26 to further stir the solid-liquid mixture. As the helical blades 22 continuously propel the solid-liquid mixture from upstream to downstream, the concrete that has completed the mixing is continuously propelled to the housing outlet 28 located downstream of the mixer, thereby achieving a continuous mixing output of the concrete. The concrete raw materials can meet the use requirement after being stirred for a preset time, and the preset time can be determined according to the preparation requirement of the concrete, such as 15 seconds or 20 seconds. In order to achieve the preset time for stirring the concrete, one skilled in the art can design the inner diameter of the housing 21, the pitch of the helical blade 22, the included angle between the stirring blade 26 and the central axis of the housing 21, and the rotation speed during the stirring process, so that the stirring time reaches the preset time for stirring the concrete when the solid-liquid mixture is conveyed to the housing output port 28. Optionally, a housing outlet cover may also be provided at the housing outlet 28 of the mixer 2 in order to control the mixing time of the concrete inside the mixer 2. Due to the blocking effect of the output port cover, the stirring height of the concrete in the stirring barrel can be controlled. In one example, the outlet cover is disposed outside of the end of the housing adjacent the housing outlet 28.

Alternatively, the blender 2 may be provided with an inspection service hole, also referred to as a service hole, for an operator to know the operation of the blender 2 or to service the blender when it is shut down. In one example, the inspection service holes may be provided on a circumferential sidewall of the housing 21. When the inspection and maintenance hole is provided below or at the front or rear side (from the perspective of fig. 1) of the housing 21, an inspection and maintenance hole cover may be provided outside the inspection and maintenance hole, and the inspection and maintenance hole cover closes the inspection and maintenance hole when the mixer is operated, so as to prevent concrete from overflowing outside the housing. When the inspection repair hole is provided above the housing 21 (from the perspective of fig. 1), the inspection repair hole may not be closed, that is, an inspection repair hole cover may not be provided. Further, the inspection and repair hole may be provided to protrude upward from the circumferential sidewall of the shell, thereby preventing concrete from overflowing toward the shell.

The structure of the concrete mixing and conveying device mounted on the pump truck according to the embodiment of the application is further described below with reference to the attached drawings.

Fig. 3 is a schematic view showing a transport state of the concrete mixing and conveying apparatus according to the embodiment of the present application. As shown in fig. 3, the pump truck 3 includes a pump truck chassis 31, a hydraulic cylinder 32, a pump truck hopper 34, and a traveling mechanism 35. It is understood that the pump truck chassis 31 and the traveling mechanism 35 may be vehicle platforms known in the art, and the present application is not limited thereto. The pump truck hopper 34 is arranged on the pump truck chassis; the blender 2 is movably mounted to the pump truck hopper 34 by a slide mechanism driven by the hydraulic ram 32 so that the hopper and blender can slide back and forth in the longitudinal direction of the pump truck by the slide mechanism.

The structure and operation of the sliding mechanism will be further described below, and the pump truck hopper 34 is disposed at the rear of the pump truck chassis 31 and fixed to the pump truck chassis. The pump truck hopper 34 is connected to an external pumping mechanism via an external port 342, and the pump truck hopper 34 receives concrete from the mixer 2 and delivers the concrete to a pour location via the pumping mechanism. The structure that the stirrer 2 passes through the pump truck hopper 34 and can slide back and forth relative to the pump truck hopper can reduce the space occupation volume of the stirring and conveying device and improve the space utilization rate. When the mixing and conveying device is in a transportation state, the hydraulic oil cylinder 32 is in a contraction state, and the mixer is positioned on the pump truck chassis 31 close to the front along the longitudinal direction of the pump truck.

Fig. 4 is a schematic view showing an operating state of the concrete mixing and conveying apparatus according to the embodiment of the present application. As shown in fig. 4, when the mixer delivery apparatus on the pump truck 3 is in an operating state, the hydraulic cylinder 32 is in an extended state, the mixer is moved backward to the rear of the pump truck, and the downstream end of the mixer housing 21 is positioned in the pump truck hopper 34.

The mode of switching the stirring and conveying device between the transportation state and the working state by means of the sliding mechanism is further described below with reference to the attached drawings.

Fig. 5 and 6 are schematic perspective views of the stirring and conveying device in a transportation state and a working state, respectively, and structural components with small relevance such as a solid meter below a hopper are omitted in the drawings for the sake of clarity of showing relevant structures.

The sliding mechanism comprises a sliding guide hole 341 arranged on the pump truck hopper 34; the mixer housing 21 passes through the slide guide bore 341 and slides relative to the pump truck hopper 34 under the drive of the hydraulic ram 32. The slide guide hole 341 is provided in the front-rear direction of the pump truck hopper 34, and the shape of the slide guide hole matches the cross-sectional shape of the housing 21. The housing 21 passes through the slide guide hole 341 and can slide back and forth along the slide guide hole 341. One end of hydraulic cylinder 32 is fixed to pump truck chassis 31 and the other end is fixed to mixer 2, for example, the other end of hydraulic cylinder 32 is fixed to housing 21. The hydraulic oil cylinder 32 moves telescopically, so that the stirrer is driven to move back and forth along the longitudinal direction of the pump truck, and the conversion between a transportation state and a working state is realized. Alternatively, a guide ring may be disposed on the circumference of the sliding guide hole 341, for example, a guide ring may be welded, so as to better support and guide the forward and backward sliding of the blender. In another example, the shape of the guiding hole 341 may be square or rectangular, and a square or rectangular sliding shell is fixedly disposed outside the housing 21, and the cross-sectional shape of the sliding shell matches with the shape of the guiding hole 341, so that the blender can move back and forth along the longitudinal direction of the pump truck. The square or rectangular sliding guide hole can ensure that the stirrer is more stable in the sliding process. In other examples, the sliding mechanism may include a sliding rail disposed outside the housing of the blender, and a sliding guide hole disposed on the hopper of the pump truck, the sliding guide hole having a shape matching the cross-section of the sliding rail, such that the blender may move back and forth along the longitudinal direction of the pump truck. The sliding track can be made of square steel or channel steel, and can also be made of steel with other cross-sectional shapes. The number of the sliding tracks may be one or more, which is not limited in this application.

Due to the presence of slide guide 341, pump truck hopper 34 may include a pump truck hopper flap that may be hinged to the pump truck hopper and match the shape of slide guide 341 to prevent concrete from spilling out of the area outside of the pump truck hopper when the mixer is in operation, and that closes slide guide 341 when the mixer is moved to an operating position behind the pump truck. When the mixer is in the operating position, the slide guide hole behind the pump truck is still engaged with the mixer housing 21, and the slide guide hole 341 in front of the pump truck can be closed by the pump truck hopper baffle. It is understood that if the clearance of the slide guide hole 341 with the housing 21 is larger, a pump truck hopper baffle may be provided for the slide guide hole behind the pump truck, the pump truck hopper baffle being engaged with the clearance. In another example, FIG. 7 shows another operation of the mixing conveyor, and as shown in FIG. 7, when the mixing conveyor is in operation, the left end of the discharge port of the mixer 2 (i.e., the end downstream of the mixer) extends out of the left side of the pump truck hopper 34 and slides in sealing engagement with the slide guide hole 341 of the pump truck hopper 34, so that the pump truck hopper baffle can be omitted, and in operation, the left end of the mixer does not disengage from the slide guide hole on the left side of the pump truck hopper, thereby functioning as a chute and preventing the mixed concrete from flowing out.

Optionally, to further enhance the stability of the blender to move back and forth, additional stabilizing means may be provided. As shown in fig. 5 and 6, in one example, the stabilizing device includes a sliding bar 37 and a sliding sleeve 38. The sliding rod 37 is fixedly arranged on the hopper, and the sliding sleeve 38 is fixedly arranged on the pump truck chassis 31 (not shown in the figure). When the blender moves back and forth, the sliding rod 37 can slide back and forth in the sliding sleeve 38 along the longitudinal direction of the pump truck, thereby enhancing the stability of the blender moving back and forth. Alternatively, sliding sleeve 38 may be fixedly disposed on pump truck hopper 34, or sliding sleeve 38 may be integrally formed with pump truck hopper 34 such that sliding rod 37 can slide back and forth within sliding sleeve 38 in the longitudinal direction of the pump truck. Alternatively, the slide bars 37 and the slide sleeves 38 may be two in number and disposed on the left and right sides of the hopper 1, that is, on the left and right sides of the pump truck. In another example, the stabilizing device may include a stabilizer bar 29, the stabilizer bar 29 being fixedly disposed at a downstream end portion of the mixer housing 21 and extending in an axial direction of the mixer housing. As shown in FIG. 6, stabilizer bar 29 supports and guides housing 21 to continue rearward movement as the downstream end of housing 21 moves into pump truck hopper 34, maintaining the stability of the blender moving forward and rearward.

Alternatively, the agitator conveyor may be provided with a support structure that may be opened and supported on the ground or other fixed location as the agitator conveyor moves outwardly to the rear of the pump truck so that the agitator conveyor may be more stable during operation. Fig. 8 shows a rear view of a concrete mixing and conveying apparatus, as shown in fig. 8, in this example the support structure is a hydraulic prop 36, and the hydraulic prop 36 includes hydraulic cylinders and feet 361 and is symmetrically disposed on the left and right sides of the hopper (i.e., the left and right lateral sides of the pump truck). The hydraulic cylinder can be extended and retracted, so that the stirring device can be retracted when not used and extended when used. The legs 361 reduce pressure on the ground or a fixed location, ensuring stability of the support. Further, the hydraulic prop 36 may be hingedly connected to the solids meter 114 so as to be foldable relative to the solids meter to reduce the amount of space occupied during non-use or transportation. In another example, the base may be a support structure comprised of rods or beams that can be folded up to reduce the space occupied during non-use or transportation. It will be appreciated by those skilled in the art that the base may be eliminated in the event that the slide mechanism is capable of maintaining stable operation of the blender.

The concrete mixing and conveying device of the embodiment of the application has the following operation flow:

first, the device is transported to the job site and job preparation is completed. When the mixer is transported by the pump truck, the mixer is in the transport state shown in fig. 3, the hydraulic cylinder 32 is in the contracted state, and the whole mixer is supported on the pump truck chassis 31. After the pump truck reaches the job site, hydraulic ram 32 is controlled to extend, driving the blender to move to the work position, i.e., the blender moves to the rear space of the pump truck and completes the attachment. In the case of an agitator conveyor having a support structure, the support structure is opened and supported to the ground or other fixed location.

Second, the hopper 2 is charged with solid raw material and the water supply line is connected to the mixer 2. In one example, solid raw material may be charged into the hopper 1 by a work machine, thereby increasing the degree of automation of the work process. In another example, the raw material may be charged into the hopper 1 through a pipeline previously installed at the operation site. In other examples, the raw materials may be stored in the hopper 1 and transported to the operation site.

Thirdly, the concrete mixer conveyor is started, and the solid raw material is put into the mixer 2 from the hopper 1 by a predetermined amount and supplied to the mixer through the water supply pipe to form a solid-liquid mixture. The mixer 3 mixes the solid-liquid mixture and pushes the solid-liquid mixture toward the outlet of the mixer casing while mixing, and the concrete is prepared in this process. The prepared concrete 38 then enters the pump truck hopper 34 and is delivered to the concrete pour point via the pumping device.

Concrete continuous stirring conveyor, can be according to the production demand, the adjustment helical speed reaches required ration and carries the concrete raw materials in succession, the continuous supply concrete to control the churning time according to concrete quality requirement, show the supply capacity and the concrete quality that improve the concrete, make stirring production and transport integration simultaneously, avoid the raw materials to put in the dust that the process produced, reduce the loss of raw materials, avoid producing the production environment and produce a large amount of pollutions, guarantee that operating personnel's is healthy.

The foregoing shows and describes the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are presented solely for purposes of illustrating the principles of the application and that various changes and modifications may be made without departing from the spirit and scope of the application and these changes and modifications are intended to be within the scope of the application as claimed. The scope of the claims herein is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a concrete mixing conveyor, mixing conveyor includes hopper and mixer, its characterized in that:

the stirrer comprises a shell and a stirring mechanism positioned in the shell;

the housing having a housing input port and a housing output port;

2. The mixing conveyor of claim 1,

the spiral metering sheet is fixedly connected with the metering driving shaft;

3. The mixing and conveying device according to claim 2, wherein at least one side of the feed opening of the screw meter is designed to be of an arc-shaped structure.

4. The mixing conveyor of claim 1, wherein the housing outlet is disposed on a circumferential sidewall adjacent one end of the housing or an end sidewall at one end of the housing at a predetermined height.

5. The mixing conveyor according to claim 4,

6. The mixing conveyor of claim 1, wherein the circumferential side wall of the housing is provided with access holes.

7. The mixing conveyor of claim 1,

the pump truck hopper is arranged on the pump truck chassis;

8. The mixing conveyor of claim 7 wherein said slide mechanism comprises a slide guide hole disposed in a hopper of the pump truck;

9. The mixing conveyor of claim 8,

the pump truck hopper also comprises a pump truck hopper baffle;

10. The mixing and conveying apparatus of claim 7, further comprising a stabilizing device comprising a slide bar and a sliding sleeve;

11. The mixing and delivery apparatus of claim 10, wherein the stabilizing means further comprises a stabilizing bar;

12. The mixing conveyor of claim 7 further comprising a support structure that opens and rests on the ground when the mixing conveyor is moved to the rear of the pump truck.

13. The mixing conveyor of claim 12, wherein the support structure is a hydraulic mechanism comprising hydraulic rams and feet.