CN110281387B - A construction material processing device - Google Patents

Abstract

The invention relates to the technical field of building material equipment, in particular to a building material processing device which comprises a support frame, wherein a mixing drum is fixedly connected onto the support frame, a discharge hole is formed in the bottom of the mixing drum, a rotating shaft is coaxially arranged in the mixing drum, a driving unit for driving the rotating shaft to rotate is arranged on the mixing drum, and the rotating shaft comprises an upper rotating shaft and a lower rotating shaft which are mutually linked; the upper rotating shaft is fixedly connected with an upper spiral sheet, the lower rotating shaft is fixedly connected with a lower spiral sheet, a reversing mechanism used for changing the relative rotating direction of the upper rotating shaft and the lower rotating shaft is arranged between the upper rotating shaft and the lower rotating shaft, and the lower rotating shaft is close to the discharge hole. According to the invention, the rotating direction of the lower spiral sheet is changed successively through the switching mechanism, so that the upper spiral sheet and the lower spiral sheet are matched with each other to successively complete stirring operation and discharging operation, and the problems of low stirring efficiency and low discharging speed in the prior art are solved.

Description

A construction material processing device

technical field

The invention relates to the technical field of building materials equipment, in particular to a building material processing device.

Background technique

In the field of construction, concrete is a commonly used building material. Concrete refers to a general term for engineering composite materials that are cemented by cementitious materials to form a whole. Stone is used as aggregate, mixed with water (which may contain admixtures and admixtures) in a certain proportion, and the cement concrete obtained by stirring is widely used in civil engineering. Due to the wide use of concrete, the concrete mixing device also follows developed.

The existing concrete mixing device generally uses a rotating shaft to drive the mixing paddle to rotate, so that the mixing paddle can mix the raw materials of the concrete. Two stirring shafts in the mixer body, wherein: two radially symmetric helical feed units and two radially symmetrical helical return units are sequentially arranged on each stirring shaft, and the helical directions of the helical feed unit and the helical return unit are opposite , the screw feed unit and the screw return unit are partially intersected in the axial direction; the screw feed units and the screw return units on the two stirring shafts are arranged in opposite directions. The patent uses two oppositely arranged screw feed units and screw return units to make the slurry make the concrete more efficient. However, in this patent, the screw-arranged mixing arms are used for mixing. The concrete cannot be driven, so that the mixer cannot be quickly discharged when the concrete is discharged, and the mixing cycle of the concrete becomes longer, which affects the overall mixing efficiency of the concrete.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a building material processing device, which solves the problems of low concrete mixing efficiency and that the concrete cannot be quickly discharged from the mixing drum.

In order to achieve the above purpose, the technical scheme adopted in the present invention is: a building material processing device, comprising a support frame, a mixing drum is fixedly connected to the support frame, a discharge port is arranged at the bottom of the mixing drum, and a coaxial The rotating shaft, the mixing drum is provided with a driving unit that drives the rotating shaft to rotate, and the rotating shaft includes an upper rotating shaft and a lower rotating shaft that are linked with each other; the upper rotating shaft is fixedly connected with an upper helical sheet, and the lower rotating shaft is fixedly connected with a lower helical sheet, the upper rotating shaft and the lower rotating shaft There is a reversing mechanism for changing the relative rotation direction of the upper rotating shaft and the lower rotating shaft, and the lower rotating shaft is close to the discharge port.

The principle of the invention is as follows: the concrete is mixed in the mixing drum, and the mixed concrete is discharged from the discharge port; since the rotating shaft includes an upper rotating shaft and a lower rotating shaft that are linked with each other, when the driving unit drives the rotating shaft to rotate, the upper rotating shaft and the lower rotating shaft The rotating shaft can rotate under the action of the driving force of the driving unit, thereby driving the upper and lower helical blades to rotate, so as to realize the mixing of the concrete in the mixing drum. There is a reversing mechanism between the upper rotating shaft and the lower rotating shaft, so that the relative rotation direction of the upper rotating shaft and the lower rotating shaft can be changed. Therefore, under the action of the reversing mechanism, if the rotating direction of the upper rotating shaft and the lower rotating shaft The mixing and pushing directions of the blade and the lower helical blade are opposite to the concrete. In order to facilitate the rapid mixing of the concrete in the mixing drum, the helical direction of the upper helical blade and the lower helical blade can be set, so that the upper helical blade and the lower helical blade can stir and push the concrete. , the upper helix and the lower helix push the concrete to the middle of the mixing drum, so that the concrete is continuously fused and quickly mixed evenly; when the upper helix and the lower helix rotate in the same direction under the reversing action of the reversing mechanism, the upper The combination of the helical blade and the lower helical blade forms a helical blade that stirs and pushes the concrete in one direction, so that the concrete can be quickly pushed to one end of the mixing drum. The concrete is quickly discharged, reducing the discharge time, shortening the overall mixing cycle time, and improving the mixing efficiency of concrete.

The advantages of using the above scheme are:

1. Ability to quickly discharge: Compared with the prior art, after the concrete is mixed, the concrete is discharged from the discharge port by its own gravity, and the mixing arm has little effect on the discharge of the concrete, so the concrete is discharged from the mixing drum. Inefficiency, affecting the entire cycle of concrete mixing. In the present application, the combination of the upper screw and the lower screw can not only realize the rapid and efficient mixing of concrete, but at the same time, through the switching function of the switching mechanism, the mixed concrete can be quickly pushed to the discharge port, thereby The concrete can be quickly drained, and the mixing efficiency of the concrete is improved.

2. High-speed stirring: Compared with the concrete in the prior art, the concrete is circulatory flow stirring. In this application, in the stirring stage, when the upper helical blade and the lower helical blade mix and push the concrete, the concrete flows from both sides of the mixing drum to the middle, The concrete pushed by the upper helical blade moves relatively with the concrete pushed by the lower helical blade, so that the concrete is quickly mixed and the mixing speed of the concrete is faster.

3. Conducive to cost reduction: due to the heavy weight of the concrete in the mixing drum, the concrete can only be discharged after it is fully mixed and evenly mixed. In the prior art, when the concrete is discharged after mixing, the mixing arm also needs to be continuously stirred. , so that the concrete is discharged from the mixing drum. In this application, the driving action of the upper and lower helical blades is used to make the concrete be discharged quickly. You put it, reducing the ineffective mixing time of the mixing arm when discharging, effectively saving energy and reducing mixing. cost.

Further, the mixing drum is arranged vertically, the driving unit includes a first motor fixedly connected to the top of the mixing drum, the upper rotating shaft is fixedly connected with the first motor, and the lower rotating shaft is close to the discharge port.

The mixing drum is set vertically and the lower shaft is close to the discharge port. The upper side of the mixing drum is provided with a feeding port, so the concrete moves from top to bottom in the mixing drum, which can effectively use the gravity of the concrete to assist the mixing, so that the mixing can be carried out quickly. , and after the mixing is completed, the concrete can be quickly discharged.

Further, the reversing mechanism includes a second motor and a transition portion, the second motor is fixedly connected to the lower rotating shaft, the transition portion is located between the upper rotating shaft and the lower rotating shaft, and the upper end of the transition portion is rotatably connected to the upper rotating shaft, and the lower end of the transition portion is connected to the lower shaft. The shaft is connected in rotation.

In use, the transition part is used to connect the upper rotating shaft and the lower rotating shaft, so that the relative rotation of the upper rotating shaft and the lower rotating shaft is not affected, and then the first motor is used to drive the upper rotating shaft to rotate, the second motor is used to drive the lower rotating shaft to rotate, and the first motor drives the rotating shaft. The upper rotating shaft always rotates in one direction, so that the upper helical blade stirs the concrete in the mixing drum and moves it downward; when the mixing drum is in the mixing stage, the second motor drives the lower rotating shaft to rotate, so that the lower helical blade on the lower rotating shaft stirs the concrete And make the concrete move upward, so that the concrete on the lower side of the mixing drum and the concrete moving downward on the upper side form convection, so that the concrete is vigorously stirred and the completion of the stirring is accelerated.

Further, the reversing mechanism includes a driving wheel, a first spur gear, a second spur gear, a first bevel gear, a second bevel gear, a driven shaft and a switch, the driving wheel is fixedly connected to the upper rotating shaft, the first spur gear and The second spur gear can be meshed with the driving wheel, and the switcher is used to switch the first spur gear and the second spur gear to mesh with the driving wheel step by step; the first bevel gear is fixedly connected to the driven shaft, and the first bevel gear and the second bevel gear are The bevel gears are meshed with each other, and the second bevel gear is fixedly connected with the lower rotating shaft; the first spur gear and the driven shaft and the second spur gear and the driven shaft are all connected by flexible shafts.

In use, when the upper rotating shaft rotates, the rotating wheel is driven to rotate, the first spur gear or the second spur gear is switched to mesh with the driving wheel through the switch, and the first spur gear or the second spur gear drives the first bevel gear to rotate through the flexible shaft; The first bevel gear is fixedly connected to the driven shaft, the second bevel gear is meshed with the first bevel gear, and the second bevel gear is fixedly connected to the lower rotating shaft, and the first spur gear or the second spur gear is driven by the flexible shaft. The driven shaft rotates, so that the driven shaft drives the first bevel gear, the second bevel gear and the lower rotating shaft to rotate, and then meshes with the driving wheel step by step through the switcher, so as to realize the change of the relative rotation direction between the upper rotating shaft and the lower rotating shaft , and finally achieve the purpose of stirring and rapid discharge.

Compared with using the second motor to directly drive the lower rotating shaft to rotate, the transmission ratio of the upper rotating shaft and the lower rotating shaft is fixed. In this solution, it is more preferable to use various meshing gears and switches, in the case of only using the first motor to drive, and to set the transmission ratio of each gear, so that the rotation speed of the upper rotating shaft and the lower rotating shaft is constant. Proportion, so as to control the speed of stirring or discharging of the upper and lower shafts. For example, in the process of discharging, the rotation speed of the lower shaft can be made faster, so that the discharging can be completed faster.

Further, the switcher includes a fixed plate, a sliding plate, an electromagnet and a protective cover, the first spur gear and the second spur gear are both rotatably connected to the sliding plate, and the electromagnets face each other and are fixedly connected between the fixed plate and the sliding plate; the driving wheel, The first spur gear, the second spur gear, the first bevel gear, the second bevel gear, the driven shaft and the commutator are all arranged in the protective cover.

By controlling the power-on or power-off of the electromagnet, the sliding plate and the fixed plate are brought close to or away from each other, so as to realize the meshing of the first spur gear or the second spur gear with the driving wheel, with fast response and convenient operation; The wheel, the first spur gear, the second spur gear, the first bevel gear, the second bevel gear, the driven shaft and the commutator are protected to prevent the concrete in the mixing drum from interfering with the meshing or switching between the various gears.

Further, the fixing plate is fixedly connected to the side wall of the protective shell, a sliding rod perpendicular to the fixing plate is fixedly connected in the protective cover, and the sliding plate slides with the sliding rod lining plate.

The sliding rod is used to support and guide the sliding plate, which is convenient for sliding in the protective shell, so as to quickly switch the meshing between the first spur gear or the second spur gear and the driving wheel, and realize the relative movement of the upper and lower helical blades. Adjustment to make mixing and discharging fast and efficient.

Further, the number of sliders is two.

The number of sliding rods is two, the two sliding rods provide stable support and precise guidance for the skateboard, so that the skateboard can slide more smoothly and accurately, thus ensuring the meshing accuracy of the first spur gear or the second spur gear and the driving wheel .

Further, the outer walls of the protective cover are smoothly connected.

The outer walls of the protective cover are smoothly connected, so that the blocking effect of the outer wall of the protective cover on the flow of the concrete in the mixing drum is reduced, so that the concrete in the mixing drum can flow quickly and be stirred evenly.

Further, a stirring paddle is arranged between the upper rotating shaft and the lower rotating shaft.

In order to make the concrete in the connecting part between the upper screw and the lower screw flow and mix more quickly, a stirring paddle is arranged between the upper rotating shaft and the lower rotating shaft, and the concrete is quickly stirred by the shearing of the concrete by the stirring paddle. To avoid the blockage of concrete from gathering between the upper and lower helical blades, the mixing of concrete is affected.

Further, the stirring paddle includes a fixed part and a sliding part movably connected with the fixed part.

By adjusting the movable connection between the fixed part and the movable part, the actual action area of the stirring paddle changes correspondingly, so that the stirring action of the stirring paddle changes accordingly. The stirring function of the paddle better matches the stirring and pushing speed between the upper and lower screw blades.

Description of drawings

FIG. 1 is a longitudinal cross-sectional view of a building material processing device according to Embodiment 1 of the present invention along the central axis of the mixing drum.

FIG. 2 is a longitudinal cross-sectional view of a stirring paddle of a building material processing device in Embodiment 1 of the present invention.

FIG. 3 is a longitudinal cross-sectional view of a building material processing device according to Embodiment 2 of the present invention along the central axis of the mixing drum.

FIG. 4 is a partial enlarged view of part A in FIG. 3 .

Detailed ways

The following is further described in detail by specific embodiments:

The reference signs in the accompanying drawings include: support frame 1, mixing drum 2, feeding port 3, discharging port 4, first motor 5, upper rotating shaft 6, lower rotating shaft 7, upper spiral plate 8, lower spiral plate 9 , the second motor 10, the transition part 11, the fixed part 12, the sliding part 13, the chute 14, the driving wheel 15, the first spur gear 16, the second spur gear 17, the first bevel gear 18, the second bevel gear 19, The driven shaft 20 , the fixed plate 21 , the sliding plate 22 , the protective cover 23 , the sliding rod 24 , the flexible shaft 25 , the first electromagnet 26 , and the second electromagnet 27 .

Example 1

Embodiment 1 Basically as shown in Figures 1 and 2, a building material processing device includes a support frame 1, and a vertically arranged mixing drum 2 is fixedly connected to the support frame 1. The upper right end of the mixing drum 2 is provided with an inlet. The material port 3 and the bottom of the mixing drum 2 are provided with a discharging port 4. The mixing drum 2 is provided with a rotating shaft coaxially with the mixing drum 2. The top of the mixing drum 2 is fixedly connected with a drive unit that drives the rotating shaft to rotate. This embodiment Among them, the driving unit includes a first motor 5 with the output shaft facing downward, and the top end of the rotating shaft is fixedly connected with the output shaft of the first motor 5 through a coupling.

As shown in Figure 1, the rotating shaft includes an upper rotating shaft 6 and a lower rotating shaft 7 that are linked with each other, the lower rotating shaft 7 is close to the discharge port 4, the upper rotating shaft 6 is fixedly connected with an upper screw 8 by screws, and the lower rotating shaft 7 is fixed by screws. The lower helical sheet 9 is connected, the upper helical sheet 8 and the lower helical sheet 9 have the same rotation direction, and a reversing mechanism for changing the relative rotation direction of the upper rotating shaft 6 and the lower rotating shaft 7 is provided between the upper helical sheet 8 and the lower helical sheet 9 .

The reversing mechanism includes a second motor 10 and a transition portion 11. The second motor 10 is fixedly connected to the bottom of the mixing drum 2 through bolts. The output shaft of the second motor 10 passes through the bottom plate of the mixing drum 2 upward and passes through the lower rotating shaft 7. The connector is fixedly connected; the transition part 11 is located between the upper rotating shaft 6 and the lower rotating shaft 7, and between the upper rotating shaft 6 and the transition part 11, and between the lower rotating shaft 7 and the transition part 11 are rotationally connected by bearings (not shown in FIG. 1 ). (outlet bearing), so that both the upper rotating shaft and the lower rotating shaft can rotate along the axis of the mixing drum 2 and the rotation between them does not affect each other.

As shown in FIG. 1 , a stirring paddle is welded to the lower side of the upper rotating shaft 6 and the upper side of the lower rotating shaft 7 , and the stirring paddle is arranged obliquely. Referring to FIG. 2 , the stirring paddle includes a fixed part 12 and a sliding part 13 , and the fixed part 12 is provided with a There is a chute 14 that can accommodate the sliding part 13, and the outer wall of the fixing part 12 is provided with a strip-shaped hole, and the sliding part 13 is provided with a threaded hole corresponding to the strip-shaped hole. , and then use screws to fix the fixed part 12 and the sliding part 13 to each other, thereby changing the stirring area of the stirring paddle, so that the stirring ability of the stirring paddle and the ability of shearing concrete can be changed.

The specific implementation process is as follows:

1. Installation and debugging stage:

First, connect the upper rotating shaft 6 and the lower rotating shaft 7 with the transition part 11, and then weld the stirring paddle on the upper rotating shaft 6 and the lower rotating shaft 7, and adjust the relative position of the sliding part 13 and the fixed part 12, so that the stirring paddle can be stirred. If the area is suitable, then put the upper rotating shaft 6 and the lower rotating shaft 7 into the mixing drum 2, so that the upper rotating shaft 6 is fixedly connected with the output shaft of the first motor 5, and the lower rotating shaft 7 is fixedly connected with the output shaft of the second motor 10.

2. Stirring stage:

The discharge port 4 is closed, the concrete is poured into the mixing drum 2 from the feed port 3, and the first motor 5 and the second motor 10 are activated. The first motor 5 drives the upper rotating shaft 6 to rotate, and the upper rotating shaft 6 drives the upper helical blade 8 to rotate, so that the upper helical blade 8 stirs the concrete and pushes the concrete downward; at the same time, the second motor 10 drives the lower rotating shaft 7 to rotate, and the lower rotating shaft 7 drives the rotation. The lower helical blade 9 rotates, so that the lower helical blade 9 stirs the concrete and pushes the concrete upward, so that the concrete moves from the two ends of the mixing drum 2 to the middle under the action of the upper helical blade 8 and the lower helical blade 9, and at the bottom of the mixing drum 2. Vigorous extrusion and mixing occur in the middle, so that the concrete is quickly mixed to achieve the purpose of rapid and uniform mixing. As shown in Figure 1, there is a certain distance between the upper helical blade 8, the lower helical blade 9 and the inner wall of the mixing drum 2, and the spacing is The circulation and movement of the concrete in the mixing drum 2 provides space, which ensures that the concrete is fully mixed by the circulation and continuous movement in the mixing drum 2 .

3. Discharging stage:

When the concrete in the mixing drum 2 is fully stirred, the rotation direction of the first motor 5 is kept unchanged, and the rotation direction of the second motor 10 is changed at the same time, so that the rotation direction of the lower shaft 7 is changed, so that the lower screw 9 is stirred. And the direction of pushing the concrete is changed from bottom to top to top to bottom, the lower screw 9 and the upper screw 8 mix and push the concrete in the same direction, so that the concrete quickly gathers to the discharge port 4, and the opening is opened at this time. Discharge port 4, so as to quickly discharge the mixed concrete, reduce the discharge time of the concrete, and improve the mixing efficiency of the concrete.

Embodiment 2

The difference between the second embodiment and the first embodiment is that the reversing mechanism is improved.

3 and 4, a reversing mechanism is provided between the upper rotating shaft 6 and the lower rotating shaft 7, and the reversing mechanism includes a driving wheel 15, a first spur gear 16, a second spur gear 17, a first bevel gear 18, The second bevel gear 19, the driven shaft 20 and the switch.

The switcher includes a fixed plate 21, a sliding plate 22, an electromagnet and a protective cover 23. The outer wall of the protective cover 23 is smoothly connected. The upper rotating shaft 6 and the lower rotating shaft 7 are connected with the protective cover 23 by bearings. The spur gear 16 , the second spur gear 17 , the first bevel gear 18 , the second bevel gear 19 , the driven shaft 20 and the switch are all located in the protective cover 23 . As shown in FIG. 4 , the driving wheel 15 is fixedly connected to the lower end of the upper rotating shaft 6 by screws, and the protective cover 23 is laterally fixedly connected with sliding rods 24 by screws. The number of the sliding rods 24 is two and the two sliding rods 24 Located on the same horizontal plane, the sliding plate 22 is laterally slidably connected to the sliding rod 24 , the first spur gear 16 and the second spur gear 17 are both rotatably connected to the sliding plate 22 through bearings, and the first spur gear 16 is located on the left side of the driving wheel 15 . 2. The second spur gear 17 is located on the right side of the driving wheel 15. By sliding the sliding plate 22 laterally, the first spur gear 16 or the second spur gear 17 can be engaged with the driving wheel 15.

As shown in FIG. 4 , the driven shaft 20 is located below the sliding rod 24, and a connecting plate is connected between the driven shaft 20 and the sliding rod 24, and the upper end of the connecting plate and the sliding rod 24 are fixedly connected by screws, and the driven shaft 20 The bearing is rotatably connected to the lower side of the connecting plate, so the driven shaft 20 can rotate but cannot move laterally; the first bevel gear 18 is fixedly connected to the driven shaft 20 by a flat key, and the second bevel gear 19 is fixedly connected by a flat key On the upper side of the lower rotating shaft 7, the first bevel gear 18 and the second bevel gear 19 mesh with each other.

As shown in FIG. 4 , between the first spur gear 16 and the driven shaft 20 and between the second spur gear 17 and the driven shaft 20 are connected by a flexible shaft 25 , the upper side of the flexible shaft 25 is vertical and connected to the first The spur gear 16 or the second spur gear 17 is coaxially and fixedly connected, and the lower side of the flexible shaft 25 is coaxially and fixedly connected to the driven shaft 20 through a bearing. Since the flexible shaft 25 has the characteristics of bending transmission and the bending angle can be changed, the setting is flexible. After the shaft 25, the rotation of the first spur gear 16 or the second spur gear 17 in the horizontal direction can be converted into the rotation of the driven shaft 20 in the vertical direction; when the slide plate 22 slides laterally, whether the first spur gear 16 and the Whether the driving wheel 15 is meshed or the second spur gear 17 is meshed with the driving wheel 15, the first spur gear 16 or the flexible shaft 25 on the second spur gear 17 can transmit the power on the driving wheel 15 to the driven shaft 20, thereby The power of the upper rotating shaft 6 is transmitted to the lower rotating shaft 7 .

As shown in FIG. 4 , the electromagnet includes a first electromagnet 26 and a second electromagnet 27 facing each other, the first electromagnet 26 is fixedly connected to the left end of the slide plate 22 by screws, and the second electromagnet 27 is fixedly connected by screws On the left inner wall of the protective cover 23, by controlling the energization of the first electromagnet 26 and the second electromagnet 27, the first electromagnet 26 and the second electromagnet 27 can attract or repel each other. When the second electromagnet 27 attracts and attaches to each other (the state shown in FIG. 4 ), the second spur gear 17 and the driving wheel 15 mesh with each other; when the first electromagnet 26 and the second electromagnet 27 repel each other, the sliding plate 22 slides to the left, the sliding plate 22 moves to the left inner wall of the protective cover 23 under the repulsive force of the first electromagnet 26 and the second electromagnet 27, and the second spur gear 17 and the driving wheel 15 mesh with each other.

The specific implementation is as follows:

1. Installation and debugging stage:

First, connect the upper rotating shaft 6 and the lower rotating shaft 7, the protective cover 23 and the switching mechanism to each other, and then weld the stirring paddle on the upper rotating shaft 6 and the lower rotating shaft 7, and adjust the relative position of the sliding part 13 and the fixed part 12 to make the stirring paddle The stirring area is suitable, and then the upper rotating shaft 6 and the lower rotating shaft 7 are put into the mixing drum 2, so that the upper rotating shaft 6 is fixedly connected with the output shaft of the first motor 5, and the lower end of the lower rotating shaft 7 and the inner wall of the bottom of the mixing drum 2 pass through the bearing. Turn the connection.

2. Stirring stage:

The first motor 5 starts to drive the upper rotating shaft 6 to rotate in the forward direction, so that the upper helical blade 8 stirs the concrete on the upper side of the mixing drum 2 and pushes the concrete downward. At this time, the first electromagnet 26 and the second The two electromagnets 27 attract each other, so that the first spur gear 16 and the driving wheel 15 are meshed, and through the transmission of the flexible shaft 25, the first bevel gear 18 and the second bevel gear 19, the rotation directions of the lower shaft 7 and the upper shaft 6 are made. On the contrary, the lower helical blade 9 mixes the concrete on the lower side of the mixing drum 2 and pushes the concrete upward. Under the action of the upper helical blade 8 and the lower helical blade 9, the concrete moves from the two ends of the mixing drum 2 to the middle, and violent extrusion and mixing occur in the middle of the mixing drum 2, so that the concrete is quickly mixed and the purpose of rapid mixing is achieved. , as shown in Figure 3, there is a certain distance between the upper helical blade 8, the lower helical blade 9 and the inner wall of the mixing drum 2, which provides space for the concrete to circulate and move in the mixing drum 2, ensuring the concrete in the mixing drum 2. Circulation and continuous movement are fully stirred.

3. Discharging stage:

When the concrete in the mixing drum 2 is fully stirred, the rotation direction of the first motor 5 is kept unchanged, and at the same time, the first electromagnet 26 and the second electromagnet 27 are repulsed by the circuit control, so that the second spur gear 17 and the driving The wheel 15 meshes and is driven by the flexible shaft 25, the first bevel gear 18, and the second bevel gear 19, so that the lower rotating shaft 7 and the upper rotating shaft 6 rotate in the same direction, so that the direction of the lower helical blade 9 stirring and pushing the concrete is determined by the stirring. The bottom-up stage changes to top-down, the lower screw 9 and the upper screw 8 stir and push the concrete in the same direction, so that the concrete quickly gathers to the discharge port 4, and the discharge port 4 is opened at this time, thereby Quickly discharge the mixed concrete.

By setting the transmission ratio of each gear, the transmission ratio between the upper rotating shaft 6 and the lower rotating shaft 7 can be controlled, so that the stirring and discharging effect is better. For example, in the stirring stage, the transmission ratio between the upper rotating shaft 6 and the lower rotating shaft 7 The speed ratio is set to 1:1, at this time, the concrete in the mixing drum can be stirred quickly and stably; in the discharging stage, the transmission ratio between the upper rotating shaft 6 and the lower rotating shaft 7 is set to 1:2, which can make the lower rotating shaft 7 The rotation speed is faster than that of the upper rotating shaft 6, so that the concrete can be quickly pushed to the discharge port 4 during the discharging stage, thereby accelerating the discharging and completing the discharging quickly.

The above descriptions are only examples of the present invention, and common knowledge such as well-known specific structures or characteristics in the solutions are not described too much here. It should be pointed out that for those skilled in the art, some modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effectiveness and utility of patents. The scope of protection claimed in this application shall be based on the content of the claims, and the descriptions of the specific implementation manners in the description can be used to interpret the content of the claims.

Claims (8)

1. The utility model provides a building material processingequipment, includes the support frame, fixedly connected with churn on the support frame, the bottom of churn is equipped with coaxially in bin outlet and the churn and is provided with the pivot, be equipped with drive pivot pivoted drive unit on the churn, its characterized in that: the rotating shaft comprises an upper rotating shaft and a lower rotating shaft which are mutually linked; the upper rotating shaft is fixedly connected with an upper spiral sheet, the lower rotating shaft is fixedly connected with a lower spiral sheet, a reversing mechanism used for changing the relative rotating direction of the upper rotating shaft and the lower rotating shaft is arranged between the upper rotating shaft and the lower rotating shaft, the reversing mechanism comprises a driving wheel, a first straight gear, a second straight gear, a first bevel gear, a second bevel gear, a driven shaft and a switcher, the driving wheel is fixedly connected to the upper rotating shaft, both the first straight gear and the second straight gear can be meshed with the driving wheel, and the switcher is used for switching the first straight gear and the second straight gear to be meshed with the driving wheel step by step; the first bevel gear is fixedly connected to the driven shaft, the first bevel gear and the second bevel gear are meshed with each other, and the second bevel gear is fixedly connected with the lower rotating shaft; the first straight gear is fixedly connected with a driven shaft, and the first straight gear and the driven shaft as well as the second straight gear and the driven shaft are connected through flexible shafts.

2. The building material processing apparatus according to claim 1, wherein: the vertical setting of churn, the churn upside is equipped with the feed inlet, drive unit includes the first motor of fixed connection at the churn top, go up pivot and first motor fixed connection, the pivot is close to the bin outlet down.

3. The building material processing apparatus according to claim 1, wherein: the switcher comprises a fixed plate, a sliding plate, an electromagnet and a protective cover, wherein the first straight gear and the second straight gear are rotatably connected to the sliding plate, and the electromagnet is oppositely and fixedly connected between the fixed plate and the sliding plate; the driving wheel, the first straight gear, the second straight gear, the first bevel gear, the second bevel gear, the driven shaft and the commutator are all arranged in the protective cover.

4. A construction material processing device according to claim 3, wherein: fixed plate fixed connection is in the lateral wall of protective housing, fixedly connected with and fixed plate vertically slide bar in the safety cover, slide sliding connection is on the slide bar.

5. The building material processing apparatus according to claim 4, wherein: the number of the sliding rods is two.

6. The building material processing apparatus according to claim 5, wherein: the outer walls of the protective covers are connected smoothly.

7. The building material processing apparatus according to any one of claims 1 to 6, wherein: and a stirring paddle is arranged between the upper rotating shaft and the lower rotating shaft.

8. The building material processing apparatus according to claim 7, wherein: the stirring rake includes fixed part and the sliding part with fixed part swing joint.

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