Energy-saving concrete mixing device

Abstract

The present invention relates to the technical field of mixing equipment, and in particular to an energy-saving concrete mixing device. It comprises: a mixing tank, in which a rotating column and a cylindrical shell are slidably and rotatably connected, the rotating column and the cylindrical shell are rotatably connected, and a discharge port is provided on the lower side of the mixing tank; two rotating rings are rotatably connected to the upper and lower sides of the mixing tank respectively, and the two rotating rings are spline-connected to the rotating column and the cylindrical shell respectively; a plurality of first stirring plates are fixed to the rotating column, and a plurality of second stirring plates are rotatably connected to the cylindrical shell. The present invention uses the differential rotation of the rotating column and the cylindrical shell to enable the first stirring plate and the second stirring plate to divide the concrete into upper and lower parts and stir them separately, thereby reducing the load and energy consumption of the motor, making the mechanical load on the rotating column and the cylindrical shell more balanced, and reducing the risk of local overload and damage of the device.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, and in particular to an energy-saving concrete mixing device. Background Art

[0002] A concrete mixing device is a mechanical device specially used to mix raw materials such as cement, water, sand and gravel into uniform concrete. It is widely used in construction sites, ready-mixed concrete plants and various infrastructure construction projects. When building houses, vertical concrete mixing devices are usually used to manufacture concrete. Existing vertical concrete mixing devices usually use a main shaft to drive multiple mixing blades to rotate for a period of time to achieve sufficient mixing of raw materials such as cement, water, sand and gravel.

[0003] However, during the operation of the existing vertical concrete mixing device, when the raw materials are initially injected into the concrete mixing device, the raw materials have not yet begun to be mixed, the viscosity of the raw materials is low, and heavy raw materials such as gravel are easily settled to the bottom of the mixing drum, causing the resistance borne by the mixing blades on the lower side of the main shaft to be greater than the resistance borne by the mixing blades on the upper side. This situation not only accelerates the wear of the mixing blades on the lower side and shortens their service life, but also causes uneven force on various parts of the main shaft, increasing the risk of deformation or even damage of the main shaft, and affecting the overall stability and reliability of the equipment. Summary of the invention

[0004] Aiming at the problem that uneven force is applied to the main shaft due to stone settling during concrete mixing, the present invention provides an energy-saving concrete mixing device.

[0005] The technical solution is: an energy-saving concrete mixing device, comprising: a mixing tank, in which a rotating column and a cylindrical shell are slidably and rotatably connected, the cylindrical shell and the mixing tank are dynamically sealed, the rotating column and the cylindrical shell are rotatably connected, and a discharge port is arranged at the lower side of the mixing tank; two rotating rings are rotatably connected to the upper and lower sides of the mixing tank respectively, and the two rotating rings are spline-connected to the rotating column and the cylindrical shell respectively; a plurality of first stirring plates are fixed to the rotating column, and a plurality of second stirring plates are rotatably connected to the cylindrical shell; two power mechanisms are respectively arranged at the upper and lower sides of the mixing tank, and are used to control the rotating column and the cylindrical shell to rotate at different speeds; a dislocation mechanism is arranged on the rotating ring on the upper side, and is used to control the cylindrical shell to move briefly; a swing mechanism is arranged on the rotating ring on the lower side, and is used to change the inclination angle of the second stirring plate according to the total amount of stones in the lower part of the mixing tank.

[0006] As a preferred embodiment of the present invention, the first stirring plate and the second stirring plate are both placed obliquely, and the first stirring plate and the second stirring plate have the same inclination direction. The plurality of second stirring plates on the cylindrical shell are distributed in a spiral manner, so as to facilitate pushing the settled stones up when mixing concrete.

[0007] As a preferred embodiment of the present invention, the power mechanism includes: a motor, fixedly connected to the mixing tank, the output shaft of the motor is fixedly connected to a first gear; a gear ring, rotatably connected to the corresponding rotating ring, the gear ring is meshed with the adjacent first gear, a limit pin is slidably connected in the rotating ring, a first spring is fixed between the limit pin and the rotating ring, a blind hole is provided in the gear ring, the limit pin is used to be inserted into the blind hole of the gear ring, so that the rotating ring and the gear ring are relatively fixed.

[0008] As a preferred embodiment of the present invention, the dislocation mechanism includes: a first telescopic rod, fixedly connected to the rotating ring on the upper side, the telescopic end of the first telescopic rod being fixedly connected to the rotating column; a second telescopic rod, rotatably connected to the rotating ring on the upper side, the telescopic end of the second telescopic rod being rotatably connected to the adjacent gear ring, the second telescopic rod being connected to a liquid guide tube, the liquid guide tube being connected to the first telescopic rod, and the first telescopic rod, the second telescopic rod and the liquid guide tube are all filled with hydraulic oil.

[0009] As a preferred embodiment of the present invention, the swing mechanism includes: a third telescopic rod, rotatably connected to the rotating ring on the lower side, the telescopic end of the third telescopic rod is rotatably connected to the adjacent gear ring, the rotating ring on the lower side is fixedly connected with a fixed cylinder, the fixed cylinder is connected with a guide tube, and the guide tube is connected with the third telescopic rod; a sliding column, slidably connected in the fixed cylinder, the third telescopic rod, the fixed cylinder and the guide tube are all filled with hydraulic oil; a control component, arranged in the cylindrical shell, for controlling all the second stirring plates to rotate synchronously; a plurality of auxiliary expansion components, the number of which is the same as the number of the second stirring plates, arranged in the cylindrical shell, for expanding the area of ​​the second stirring plates stirring the concrete.

[0010] As a preferred embodiment of the present invention, two connecting holes are provided at the connecting point between the fixed cylinder and the guide tube, and the two connecting holes are one large and one small. A one-way valve is provided in the larger connecting hole for delaying the resetting time after the angle of the second stirring plate is changed.

[0011] As a preferred embodiment of the present invention, the control component includes: a connecting column, which is slidably connected in the cylindrical shell, and the connecting column is fixedly connected to the sliding column; a plurality of racks, the number of which is the same as the number of the second stirring plates, all of which are fixedly connected to the connecting column, and the part of the second stirring plate located in the cylindrical shell is provided with a second gear, and the second gear is meshed with the adjacent rack for controlling the inclination angle of the second stirring plate.

[0012] As a preferred embodiment of the present invention, the auxiliary expansion component includes: a fixed shell fixedly connected to the cylindrical shell, a sliding plate slidably connected inside the second stirring plate, a threaded shell is provided on the side of the sliding plate close to the cylindrical shell, and the sliding plate is threadedly connected to the fixed shell.

[0013] As a preferred embodiment of the present invention, it also includes: a unloading mechanism, which is arranged on the lower side of the mixing tank and is used to control the opening and closing of the unloading port of the mixing tank, and the unloading mechanism includes: a support plate, which is slidably connected to the lower side of the mixing tank, and a groove is provided on the support plate, and the edge of the groove on the support plate is arc-shaped, which is used to control the movement of the support plate; a blocking block, which is slidably connected to the groove on the support plate, and a second spring is fixed between the blocking block and the support plate, and the edge of the groove on the support plate is used to squeeze the blocking block so that the blocking block enters the unloading port of the mixing tank, and a cleaning brush is provided on the support plate.

[0014] As a preferred embodiment of the present invention, half of the lower edge of the mixing tank discharge port is set as a slope to assist the sealing block to enter the groove on the support plate. The thickness of the sealing block is the same as the thickness of the lower side of the mixing tank. The support plate slides in contact with the lower side of the mixing tank so that when the sealing block completely fills the discharge port of the mixing tank, the inner bottom surface of the mixing tank is a complete plane.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention uses the differential rotation of the rotating column and the cylindrical shell to enable the first stirring plate and the second stirring plate to divide the concrete into upper and lower parts and stir them separately, thereby reducing the load and energy consumption of the motor, making the mechanical load on the rotating column and the cylindrical shell more balanced, and reducing the risk of local overload and damage of the device.

[0016] 2. The present invention drives the rotating column to move by the telescopic end of the first telescopic rod in the dislocation mechanism, so that the first stirring plate is released from the state of being stuck by stones through dislocation, thereby preventing the first stirring plate from rigidly rotating when stuck by stones, causing the first stirring plate to be aggravated in wear.

[0017] 3. The present invention controls the meshing transmission of the rack and the second gear in the assembly to change the inclination angle of the second stirring plate, thereby accelerating the speed at which the stones move upward and ensuring the uniform distribution of the stones in the concrete.

[0018] 4. The present invention blocks the discharge port of the mixing tank by the blocking block in the discharge mechanism to prevent the accumulation of raw materials at the discharge port of the mixing tank, thereby affecting the mixing ratio of concrete and reducing the quality of concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the parts of the rotating column and the cylindrical shell of the present invention;

[0021] Figure 3 It is a cross-sectional view of the parts of the rotating ring and the gear ring of the present invention;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the cylindrical shell and the connecting column parts of the present invention;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the parts at the sliding column and the connecting column of the present invention;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the parts at the connection column and the rack of the present invention;

[0025] Figure 7 It is a cross-sectional view of the parts of the fixed shell and the sliding plate of the present invention;

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the parts of the mixing tank and the support plate of the present invention;

[0027] Fig. 9 It is a three-dimensional structural schematic diagram of the parts at the support plate and the blocking block of the present invention;

[0028] Fig.10 It is a cross-sectional view of the support plate structure of the present invention.

[0029] Figure numbers: 1-mixing tank, 2-rotating column, 3-cylindrical shell, 4-rotating ring, 5-first stirring plate, 6-second stirring plate, 201-motor, 202-first gear, 203-gear ring, 204-limit pin, 301-first telescopic rod, 302-second telescopic rod, 303-liquid guide tube, 401-third telescopic rod, 402-fixed cylinder, 403-liquid guide tube, 404-sliding column, 501-connecting column, 502-rack, 503-second gear, 601-fixed shell, 602-sliding plate, 701-support plate, 702-blocking block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Fig.10 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] Example 1: During operation of an existing vertical concrete mixing device, heavy raw materials such as gravel will settle due to gravity, causing the resistance of the mixing blades on the lower side of the main shaft to be greater than the resistance of the mixing blades on the upper side, resulting in uneven force at different positions of the main shaft, increasing the risk of deformation or even damage of the main shaft, and affecting the overall stability and reliability of the equipment.

[0032] An energy-saving concrete mixing device, please refer to the attached Figure 1 -Attached Figure 3 As shown, it comprises: a mixing tank 1, in which a rotating column 2 and a cylindrical shell 3 are slidably and rotatably connected, the cylindrical shell 3 and the mixing tank 1 are dynamically sealed, the rotating column 2 and the cylindrical shell 3 are rotatably connected, and a discharge port is arranged at the lower side of the mixing tank 1; two rotating rings 4 are rotatably connected to the upper and lower sides of the mixing tank 1, respectively, and the two rotating rings 4 are spline-connected to the rotating column 2 and the cylindrical shell 3, respectively; a plurality of first stirring plates 5 are fixedly connected to the rotating column 2, and a plurality of second stirring plates 6 are rotatably connected to the cylindrical shell 3, and the first stirring plates 6 are rotatably connected to the cylindrical shell 3 according to the different rotation speeds of the rotating column 2 and the cylindrical shell 3. The first stirring plate 5 and the second stirring plate 6 stir and mix the upper and lower parts of the concrete at different intensities; two power mechanisms are respectively arranged on the upper and lower sides of the mixing tank 1, and are used to control the rotation of the rotating column 2 and the cylindrical shell 3 at different speeds; the dislocation mechanism is arranged on the rotating ring 4 on the upper side, and is used to control the cylindrical shell 3 to move temporarily; the swing mechanism is arranged on the rotating ring 4 on the lower side, and is used to change the inclination angle of the second stirring plate 6 according to the total amount of stones in the lower part of the mixing tank 1. The first stirring plate 5 and the second stirring plate 6 are both placed obliquely, and the first stirring plate 5 and the second stirring plate 6 are tilted. The inclination direction is the same, and the plurality of second stirring plates 6 on the cylindrical shell 3 are spirally distributed, so as to facilitate the lifting of the settled stones when the concrete is stirred. The power mechanism comprises: a motor 201, which is fixedly connected to the mixing tank 1, and the output shaft of the motor 201 is fixedly connected to the first gear 202; a gear ring 203, which is rotatably connected to the corresponding rotating ring 4, the gear ring 203 is meshed with the adjacent first gear 202, and a limit pin 204 is slidably connected in the rotating ring 4, and a first spring is fixedly connected between the limit pin 204 and the rotating ring 4, and a blind hole is arranged in the gear ring 203, and the limit pin 204 is used to insert the gear ring 203, so that the rotating ring 4 and the gear ring 203 are relatively fixed, the dislocation mechanism includes: a first telescopic rod 301, fixedly connected to the rotating ring 4 on the upper side, the telescopic end of the first telescopic rod 301 is fixedly connected to the rotating column 2; a second telescopic rod 302, rotatably connected to the rotating ring 4 on the upper side, the telescopic end of the second telescopic rod 302 is rotatably connected to the adjacent gear ring 203, the second telescopic rod 302 is connected with a liquid guide tube 303, the liquid guide tube 303 is connected with the first telescopic rod 301, and the first telescopic rod 301, the second telescopic rod 302 and the liquid guide tube 303 are all filled with hydraulic oil.

[0033] In the above scheme, it is intended to solve the problem that the stirring blades at different positions of the main shaft are subjected to different resistances during the mixing of concrete, resulting in unbalanced force on the main shaft; a control panel is provided on the mixing tank 1, the motor 201 is electrically connected to the control panel, the rotating column 2 is located on the upper side of the cylindrical shell 3, and during the operation of the device, the rotation speed of the rotating column 2 is greater than the rotation speed of the cylindrical shell 3, the first stirring plate 5 and the second stirring plate 6 enhance the mixing speed of various raw materials in the concrete by tilting, and at the same time, the settled gravel is transported upward to increase the uniformity of gravel distribution in the concrete, because when the raw materials are initially injected into the mixing tank 1, the raw materials are mixed, and the viscosity of the raw materials is low, and heavy raw materials such as gravel will settle to the lower part of the mixing tank 1, and the number of gravel in the lower part of the raw materials in the mixing tank 1 is large, and the second stirring plate 6 encounters large resistance when stirring the raw materials, and bears a greater mechanical load, and by reducing the rotation speed of the second stirring plate 6, the friction and impact force are reduced, thereby reducing the load and energy consumption of the motor 201, and achieving the purpose of energy saving.

[0034] The control panel controls the speed ratio of the rotating column 2 and the cylindrical shell 3 according to the load of the two motors 201. The axes of the rotating column 2 and the cylindrical shell 3 coincide and move up and down synchronously. Initially, the limit pin 204 limits the gear ring 203, and the rotating ring 4 and the gear ring 203 do not rotate relative to each other. The first telescopic rod 301 and the second telescopic rod 302 are existing mechanisms (both are composed of a cylinder, a piston and a sliding rod, the piston slides in a sealed manner in the cylinder, and the sliding rod controls the inflow and outflow of hydraulic oil in the cylinder through the piston). Taking the first stirring plate 5 and the second stirring plate 6 on the left as an example, the first stirring plate 5 and the second stirring plate 6 are tilted backward from top to bottom, and are driven to rotate by the rotating column 2 and the cylindrical shell 3 respectively. The first stirring plate 5 and the second stirring plate 6 divide the concrete into upper and lower parts. The stirring speeds of the first stirring plate 5 and the second stirring plate 6 are different, so that the mechanical load borne by the rotating column 2 and the cylindrical shell 3 is more balanced, reducing the possibility of local overload and damage to the parts in the device.

[0035] Working process: When the operator uses the device to make concrete, the operator first injects raw materials such as cement, water, sand and gravel into the mixing tank 1 in sequence, and finally starts the two motors 201 through the control panel. The output shafts of the two motors 201 respectively drive the rotating column 2 and the cylindrical shell 3 to rotate clockwise (from top to bottom) through the first gear 202, the gear ring 203 and the rotating ring 4. The rotating speed of the rotating column 2 is greater than the rotating speed of the cylindrical shell 3. The rotating column 2 stirs the upper part of the raw materials in the mixing tank 1 through the first stirring plate 5, and the cylindrical shell 3 stirs the lower part of the raw materials in the mixing tank 1 through the second stirring plate 6. The control panel is based on the According to the load of the motor 201, the ratio of the rotation speed of the rotating column 2 and the cylindrical shell 3 is accurately controlled to make the raw materials in the mixing tank 1 evenly mixed during the stirring process. If the stones injected into the mixing tank 1 aggregate during the stirring process, the stones will be stuck between the first stirring plate 5 and the inner wall of the mixing tank 1, and the rotating column 2 and the first stirring plate 5 will stop rotating. As the output shaft of the upper motor 201 drives the gear ring 203 to rotate through the first gear 202, the blind hole of the gear ring 203 squeezes and pushes the limit pin 204 to move into the upper rotating ring 4, and the limit pin 204 compresses the first spring connected to it, and the limit pin 204 releases the limit on the gear ring 203.

[0036] When the limit of the gear ring 203 is released, the gear ring 203 rotates clockwise (from top to bottom) relative to the rotating ring 4, the telescopic end of the second telescopic rod 302 is pulled out, and the hydraulic oil in the second telescopic rod 302 flows into the first telescopic rod 301 through the liquid guide tube 303. The telescopic end of the first telescopic rod 301 contracts and drives the rotating column 2 and the cylindrical shell 3 to move upward. The rotating column 2 drives the first stirring plate 5 to move synchronously, so that the first stirring plate 5 is misaligned with the stuck stones, the aggregated stones are dispersed, and the stuck state of the first stirring plate 5 is released. When the telescopic end of the second telescopic rod 302 is extended to the limit, the gear ring 203 drives the rotating ring 4 and The rotating column 2 rotates, and the first stirring plate 5 continues to stir the concrete. The resistance encountered by the first stirring plate 5 when stirring the concrete pushes it to move downward. The first stirring plate 5 pulls the rotating column 2 downward, and the telescopic end of the first telescopic rod 301 extends. The hydraulic oil in the liquid guide tube 303 flows in the opposite direction, and the telescopic end of the second telescopic rod 302 contracts and resets. The telescopic end of the second telescopic rod 302 drives the rotating ring 4 and the gear ring 203 to rotate in the opposite direction and reset. When the limit pin 204 is aligned with the blind hole of the gear ring 203, the limit pin 204 is inserted into the blind hole of the gear ring 203 under the elastic force of the first spring connected thereto, and the rotating ring 4 and the gear ring 203 resume a relatively fixed state.

[0037] When the first stirring plate 5 stirs the upper part of the concrete, the cylindrical shell 3 stirs the lower part of the concrete through the second stirring plate 6. The stones in the concrete will gradually settle downward during the stirring process. The resistance to the movement of the second stirring plate 6 will gradually increase with the increase of stones. When the resistance to the movement of the second stirring plate 6 reaches a certain level, the blind hole of the lower gear ring 203 squeezes and pushes the limit pin 204 to move into the rotating ring 4. The limit pin 204 compresses the first spring connected to it, and the limit of the gear ring 203 is released. The lower gear ring 203 rotates relative to the rotating ring 4, and the swing mechanism controls all the second stirring plates 6 to rotate. The inclination angle of the second stirring plates 6 increases, and the second stirring plates 6 stir the concrete. During the mixing of the soil, the efficiency of the second stirring plate 6 in pushing the settled stones upward is greatly improved, so that the number of stones in the lower part of the concrete is rapidly reduced, and the resistance to the movement of the second stirring plate 6 becomes smaller. As the second stirring plate 6 stirs the concrete, the second stirring plate 6 slowly rotates and resets under the action of the movement resistance, and repeats the similar reset operation of the upper gear ring 203 and the rotating ring 4. The swing mechanism restores the lower gear ring 203 and the rotating ring 4 to their initial positions, and the lower limit pin 204 restores the limit on the gear ring 203. At this point, stirring is continued until the preparation of the concrete is completed. Finally, the concrete is discharged from the discharge port, the mixing tank 1 is cleaned, and the next batch of concrete can be prepared.

[0038] For further information, please refer to the attached Figure 2 and attached Figure 4 -Attached Figure 6 As shown, the swing mechanism includes: a third telescopic rod 401, which is rotatably connected to the rotating ring 4 on the lower side, the telescopic end of the third telescopic rod 401 is rotatably connected to the adjacent gear ring 203, the rotating ring 4 on the lower side is fixedly connected to a fixed cylinder 402, the fixed cylinder 402 is connected to a guide tube 403, and the guide tube 403 is connected to the third telescopic rod 401; a sliding column 404, which is slidably connected to the fixed cylinder 402, and the third telescopic rod 401, the fixed cylinder 402 and the guide tube 403 are all filled with hydraulic oil; a control component, which is arranged in the cylindrical shell 3, and is used to control all the second stirring plates 6 to rotate synchronously; a plurality of auxiliary expansion components, the number of which is the same as the number of the second stirring plates 6, which are arranged in the cylindrical shell 3, and are used to In order to expand the area of ​​the second stirring plate 6 stirring the concrete, two connecting holes are provided at the connecting point of the fixed cylinder 402 and the guide pipe 403, and the two connecting holes are large and small. A one-way valve is provided in the larger connecting hole to delay the reset time of the second stirring plate 6 after the angle is changed. The control component includes: a connecting column 501, which is slidably connected in the cylindrical shell 3, and the connecting column 501 is fixedly connected to the sliding column 404; a plurality of racks 502, the number of which is the same as the number of the second stirring plates 6, and are all fixedly connected to the connecting column 501, and the part of the second stirring plate 6 located in the cylindrical shell 3 is provided with a second gear 503, and the second gear 503 is meshed with the adjacent rack 502 to control the inclination angle of the second stirring plate 6.

[0039] In the above scheme, the purpose is to change the inclination angle of the second stirring plate 6 according to the operation of releasing the limit of the gear ring 203 by the lower side limit pin 204; after the angle is changed, the lowermost side of the second stirring plate 6 slides in contact with the inner bottom surface of the mixing tank 1, which is used to push all the settled stones in the mixing tank 1 upward to prevent the settled stones or other polymers from standing at the bottom and affecting the uniformity of concrete mixing. The one-way valve in the larger connecting hole of the fixed cylinder 402 only allows the hydraulic oil in the guide pipe 403 to enter the fixed cylinder 402. The cylindrical shell 3 is a spliced ​​part. Initially, the lower side surface of the sliding column 404 is in contact with the inner bottom surface of the fixed cylinder 402. The cylindrical shell 3 and the connecting column 501 cannot move downward. The resistance of the second stirring plate 6 in stirring concrete makes it tend to rotate to a horizontal state. The connecting column 501 keeps the inclination angle of the second stirring plate 6 unchanged through the rack 502 and the second gear 503.

[0040] Working process: after the lower limit pin 204 releases the limit of the gear ring 203, the output shaft of the lower motor 201 drives the gear ring 203 to continue to rotate through the first gear 202, the lower gear ring 203 rotates relative to the rotating ring 4, the telescopic end of the third telescopic rod 401 is pulled out, and the hydraulic oil in the third telescopic rod 401 flows into the fixed cylinder 402 through the guide pipe 403 and the two connecting holes, the sliding column 404 moves upward from the fixed cylinder 402 and pushes the connecting column 501 to move synchronously, the connecting column 501 makes all the second stirring plates 6 rotate synchronously through the rack 502 and the second gear 503, the inclination angle of the second stirring plate 6 becomes larger, the auxiliary expansion component increases the contact area between the second stirring plate 6 and the concrete, the lower gear ring 203 drives the cylindrical shell 3 and the second stirring plate 6 to rotate through the third telescopic rod 401, and the second stirring plate 6 will settle The efficiency of pushing the stones upward is greatly improved, so that the stones at the bottom of the concrete in the mixing tank 1 are quickly reduced. Later, in the process of the second stirring plate 6 stirring the concrete, the resistance encountered by the second stirring plate 6 in stirring the concrete pushes it to rotate and reset. The connecting column 501 gradually pushes the hydraulic oil in the fixed cylinder 402 back into the third telescopic rod 401 through the small connecting hole and the guide tube 403 through the sliding column 404. The second stirring plate 6 maintains a large inclination angle for stirring for a period of time. When the second stirring plate 6 is rotated and reset, the auxiliary expansion component is reset synchronously, the telescopic end of the third telescopic rod 401 shrinks to the initial state, and the lower side limit pin 204 resumes the limit on the gear ring 203. The above operation of changing the inclination angle of the second stirring plate 6 is repeated continuously to complete the mixing of the concrete and discharge the concrete from the discharge port. At this point, all parts in the device are restored to their initial positions.

[0041] For further information, please refer to the attached Figure 4 , Attachment Figure 6 and attached Figure 7As shown, the auxiliary expansion component includes: a fixed shell 601 fixed to the cylindrical shell 3, a sliding plate 602 slidably connected inside the second stirring plate 6, a threaded shell is provided on one side of the sliding plate 602 close to the cylindrical shell 3, and the sliding plate 602 is threadedly connected to the fixed shell 601.

[0042] In the above scheme, the purpose is to synchronously expand the range of the inclined surface of the second stirring plate 6 according to the size of the change in the inclination angle of the second stirring plate 6, so as to improve the efficiency of pushing the stones upward; the sliding plate 602 slides in the second stirring plate 6, and the sliding plate 602 has the same inclination angle as the second stirring plate 6. The threaded connection between the sliding plate 602 and the fixed shell 601 is a large pitch, so that when the second stirring plate 6 rotates a small angle, the sliding plate 602 moves a large distance. During the process of the sliding plate 602 rotating with the second stirring plate 6, the sliding plate 602 and the fixed shell 601 always remain connected. Through the rotation of the second stirring plate 6, the sliding plate 602 is moved out of the second stirring plate 6, thereby expanding the area of ​​the second stirring plate 6 pushing the stones, enhancing the efficiency of the stones moving upward, and enhancing the efficiency of mixing the raw materials in the concrete.

[0043] Working process: when the second stirring plate 6 starts to rotate, the second stirring plate 6 drives the sliding plate 602 to rotate synchronously, and the sliding plate 602 moves into the fixed shell 601 through the thread, and the sliding plate 602 gradually moves toward the cylindrical shell 3 as the second stirring plate 6 rotates. The second stirring plate 6 and the extended surface of the sliding plate 602 jointly stir the concrete and push the gravel upward. When the second stirring plate 6 completes its rotation, as the second stirring plate 6 stirs the concrete, the second stirring plate 6 gradually rotates and resets under the action of the resistance it encounters, and the sliding plate 602 synchronously moves into the second stirring plate 6, and the sliding plate 602 returns to its initial position. When the angle of the second stirring plate 6 returns to its initial state, the fixed shell 601 and the sliding plate 602 both return to their initial positions, and after waiting for the gravel to settle to the bottom again, the above-mentioned operation of rotating the second stirring plate 6 is repeated.

[0044] Example 2: Based on Example 1, please refer to the attached Figure 8 -Attached Fig.10As shown, it also includes: a discharge mechanism, which is arranged at the lower side of the mixing tank 1 and is used to control the opening and closing of the discharge port of the mixing tank 1. The discharge mechanism includes: a support plate 701, which is slidably connected to the lower side of the mixing tank 1, and a groove is provided on the support plate 701. The edge of the groove on the support plate 701 is arc-shaped and is used to control the movement of the support plate 701; a blocking block 702, which is slidably connected to the groove on the support plate 701, and a second spring is fixedly connected between the blocking block 702 and the support plate 701. The edge of the groove on the support plate 701 is arc-shaped and is used to control the movement of the support plate 701; The edge is used to squeeze the blocking block 702 so that the blocking block 702 enters the discharge port of the mixing tank 1. A cleaning brush is provided on the support plate 701. Half of the lower edge of the discharge port of the mixing tank 1 is set as a slope to assist the blocking block 702 to enter the groove on the support plate 701. The thickness of the blocking block 702 is the same as the thickness of the lower side of the mixing tank 1. The support plate 701 slides in contact with the lower side of the mixing tank 1 so that when the blocking block 702 completely fills the discharge port of the mixing tank 1, the inner bottom surface of the mixing tank 1 is a complete plane.

[0045] In the above scheme, the purpose is to solve the problem that if there is a depression at the discharge port, part of the raw materials will accumulate in the discharge port when the raw materials are initially added, and cannot be mixed into concrete, thus affecting the concrete mixing ratio; a mobile control device is provided on the lower side of the mixing tank 1, and the mobile control device is used to control the movement of the support plate 701. The mobile control device is electrically connected to the control panel. Initially, the blocking block 702 blocks the discharge port of the mixing tank 1. The rear half of the lower edge of the discharge port of the mixing tank 1 is an inclined surface, which is used to make the blocking block 702 completely enter the groove of the support plate 701 when the blocking block 702 moves out of the discharge port of the mixing tank 1. The blocking block 702 blocks and fills the discharge port of the mixing tank 1, thereby preventing the accumulation of raw materials at the discharge port of the mixing tank 1 and allowing all the raw materials injected into the mixing tank 1 to be mixed.

[0046] Working process: During the above-mentioned concrete mixing process, the upper side surface of the blocking block 702 is flush with the inner bottom surface of the mixing tank 1 to prevent raw materials from piling up at the discharge port of the mixing tank 1. When the mixing of the concrete in the mixing tank 1 is completed, the operator uses the control panel to control the mobile control device to move the support plate 701 backward. When the groove on the support plate 701 is aligned with the blocking block 702, the blocking block 702 is pushed out of the discharge port of the mixing tank 1 under the gravity of the concrete in the mixing tank 1. The blocking block 702 enters the groove on the support plate 701. The blocking block 702 compresses the second spring connected to it. As the support plate 701 moves backward, the inclined surface of the discharge port of the mixing tank 1 pushes the blocking block 702 completely into the groove of the support plate 701. When the support plate 701 is removed from below the discharge port of the mixing tank 1, the discharge port of the mixing tank 1 is fully opened, and the concrete is discharged from the discharge port of the mixing tank 1. When the concrete in the mixing tank 1 is completely discharged, the operator cleans the inside of the mixing tank 1.

[0047] When the mixing tank 1 is cleaned, the operator uses the control panel to control the movement control device to move the support plate 701 to reset, and the support plate 701 moves forward. The cleaning brush on the support plate 701 cleans the edge of the discharge port of the mixing tank 1 to prevent the retention of stones. When the blocking block 702 is aligned with the discharge port of the mixing tank 1, the blocking block 702 moves upward under the elastic force of the connected second spring, and the blocking block 702 partially moves into the discharge port of the mixing tank 1. The edge of the groove of the support plate 701 squeezes and pushes the blocking block 702 to completely enter the discharge port of the mixing tank 1. The discharge port of the mixing tank 1 is blocked. At this point, the support plate 701 returns to its initial position, and all parts return to their initial positions.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving concrete mixing device, characterized in that it comprises: A mixing tank (1), wherein a rotating column (2) and a cylindrical shell (3) are slidably and rotatably connected inside the mixing tank (1), a dynamic seal is formed between the cylindrical shell (3) and the mixing tank (1), the rotating column (2) and the cylindrical shell (3) are rotatably connected, and a discharge port is provided on the lower side of the mixing tank (1); Two rotating rings (4) are rotatably connected to the upper and lower sides of the mixing tank (1), and the two rotating rings (4) are spline-connected to the rotating column (2) and the cylindrical shell (3) respectively; A plurality of first stirring plates (5) are fixedly connected to the rotating column (2), and a plurality of second stirring plates (6) are rotatably connected to the cylindrical shell (3); Two power mechanisms are respectively arranged on the upper and lower sides of the mixing tank (1) and are used to control the rotating column (2) and the cylindrical shell (3) to rotate at different speeds; A dislocation mechanism, arranged on the rotating ring (4) on the upper side, for controlling the cylindrical shell (3) to move temporarily; A swing mechanism, arranged on the rotating ring (4) at the lower side, for changing the inclination angle of the second stirring plate (6) according to the total amount of stones in the lower part of the mixing tank (1); The power mechanism comprises: A motor (201) is fixedly connected to the mixing tank (1); an output shaft of the motor (201) is fixedly connected to a first gear (202); a gear ring (203) rotatably connected to the corresponding rotating ring (4); the gear ring (203) meshes with the adjacent first gear (202); a limit pin (204) is slidably connected inside the rotating ring (4); a first spring is fixedly connected between the limit pin (204) and the rotating ring (4); a blind hole is provided inside the gear ring (203); the limit pin (204) is used to be inserted into the blind hole of the gear ring (203), so that the rotating ring (4) and the gear ring (203) are relatively fixed; The dislocation mechanism comprises: A first telescopic rod (301) is fixedly connected to the rotating ring (4) on the upper side, and a telescopic end of the first telescopic rod (301) is fixedly connected to the rotating column (2); a second telescopic rod (302) rotatably connected to the rotating ring (4) on the upper side, the telescopic end of the second telescopic rod (302) being rotatably connected to the adjacent gear ring (203), the second telescopic rod (302) being connected to a liquid guide tube (303), the liquid guide tube (303) being connected to the first telescopic rod (301), and the first telescopic rod (301), the second telescopic rod (302) and the liquid guide tube (303) being all filled with hydraulic oil; The swing mechanism comprises: a third telescopic rod (401) rotatably connected to the rotating ring (4) at the lower side, the telescopic end of the third telescopic rod (401) being rotatably connected to the adjacent gear ring (203), the rotating ring (4) at the lower side being fixedly connected to a fixed cylinder (402), the fixed cylinder (402) being connected to a flow guide tube (403), and the flow guide tube (403) being connected to the third telescopic rod (401); A sliding column (404) is slidably connected in the fixed cylinder (402), and hydraulic oil is filled in the third telescopic rod (401), the fixed cylinder (402) and the guide tube (403); A control component, disposed in the cylindrical shell (3), and used for controlling all the second stirring plates (6) to rotate synchronously; A plurality of auxiliary expansion components, the number of which is the same as the number of the second stirring plates (6), are arranged on the cylindrical shell (3) and are used to expand the area of ​​the second stirring plates (6) stirring the concrete.

2. The energy-saving concrete mixing device according to claim 1 is characterized in that: The first stirring plate (5) and the second stirring plate (6) are both placed at an inclination, and the first stirring plate (5) and the second stirring plate (6) have the same inclination direction. The plurality of second stirring plates (6) on the cylindrical shell (3) are distributed in a spiral manner, so as to facilitate the lifting of settled stones when mixing concrete.

3. The energy-saving concrete mixing device according to claim 2 is characterized in that: Two communication holes are provided at the connection point between the fixed cylinder (402) and the guide tube (403), the two communication holes being one large and one small, and a one-way valve is provided in the larger communication hole for delaying the resetting time of the second stirring plate (6) after the angle is changed.

4. The energy-saving concrete mixing device according to claim 3 is characterized in that: The control component comprises: A connecting column (501) is slidably connected in the cylindrical shell (3), and the connecting column (501) is fixedly connected to the sliding column (404); A plurality of racks (502), the number of which is the same as the number of the second stirring plates (6), are fixedly connected to the connecting column (501); a second gear (503) is provided on the portion of the second stirring plate (6) located inside the cylindrical shell (3); the second gear (503) meshes with an adjacent rack (502) to control the inclination angle of the second stirring plate (6).

5. The energy-saving concrete mixing device according to claim 4 is characterized in that: The auxiliary expansion component comprises: The fixed shell (601) is fixedly connected to the cylindrical shell (3); a sliding plate (602) is slidably connected inside the second stirring plate (6); a threaded shell is provided on a side of the sliding plate (602) close to the cylindrical shell (3); and the sliding plate (602) is threadedly connected to the fixed shell (601).

6. The energy-saving concrete mixing device according to claim 1 is characterized in that include: A discharge mechanism is arranged at the lower side of the mixing tank (1) and is used to control the opening and closing of the discharge port of the mixing tank (1). The discharge mechanism comprises: A support plate (701) is slidably connected to the lower side of the mixing tank (1), the support plate (701) is provided with a groove, and the edge of the groove on the support plate (701) is arc-shaped, which is used to control the movement of the support plate (701); The blocking block (702) is slidably connected to the groove on the support plate (701); a second spring is fixedly connected between the blocking block (702) and the support plate (701); the edge of the groove on the support plate (701) is used to squeeze the blocking block (702) so that the blocking block (702) enters the discharge port of the mixing tank (1); and a cleaning brush is provided on the support plate (701).

7. The energy-saving concrete mixing device according to claim 6 is characterized in that: Half of the lower edge of the mixing tank (1) discharge port is arranged as an inclined surface, which is used to assist the blocking block (702) to enter the groove on the support plate (701); the thickness of the blocking block (702) is the same as the thickness of the lower side of the mixing tank (1); the support plate (701) and the lower side of the mixing tank (1) are fitted and slid together, so that when the blocking block (702) completely fills the discharge port of the mixing tank (1), the inner bottom surface of the mixing tank (1) is a complete plane.

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