A dry-mixed mortar stirring device with flexible shearing crushing function and process

Abstract

The application discloses a dry-mixed mortar stirring device with flexible shearing and crushing functions and a process, and belongs to the technical field of dry-mixed mortar preparation. The device comprises a shell, a cover plate, a rotating part and at least one set of flexible stirring parts. The flexible stirring part comprises a stirring shell, a center support arranged coaxially in the stirring shell, a plurality of elastic expansion rods hinged to the side wall of the center support, and a stirring and crushing roller rotatably installed at the end of the elastic expansion rod. The stirring and crushing roller and a guide pipe are arranged in space dislocation, and the two form dislocation blocking cooperation. The dry-mixed mortar entering and leaving the guide pipe is subjected to high-efficiency shearing and crushing through the dislocation blocking of the stirring and crushing roller and the guide pipe. Meanwhile, the flexible expansion of the elastic expansion rod realizes the flexible contact of the stirring and crushing roller, avoids the damage of rigid impact to the grain size distribution of the mortar, realizes the crushing of clumps, greatly improves the stirring uniformity and stirring efficiency of the dry-mixed mortar, and is suitable for the stirring preparation of various dry-mixed mortars.

Description

Technical Field

[0001] This invention relates to the field of dry mortar preparation technology, and more specifically, to a dry mortar mixing device and process with flexible shearing and crushing function. Background Technology

[0002] Dry-mixed mortar, also known as dry-powder mortar, refers to a granular or powdery mixture of aggregates, inorganic cementitious materials, and additives that have undergone drying and screening and are physically mixed in a certain proportion. It is transported to the construction site in bulk or bagged form and can be used directly after being mixed with water. It is widely used in the field of construction engineering.

[0003] In the production and preparation of dry mortar, mixing is the core process, and its uniformity directly determines the quality and workability of the finished dry mortar. Currently, conventional dry mortar mixing devices mostly use rigid mixing blades for forced mixing. These devices have the following drawbacks: First, dry mortar raw materials are prone to moisture absorption and clumping. Conventional rigid mixing can only achieve overall mixing of materials and cannot effectively break up clumped materials, easily leading to particle agglomeration and uneven mixing in the finished mortar, affecting its workability and strength. Second, the rigid mixing structure easily causes rigid impact and excessive grinding of the mortar aggregate, destroying the particle size distribution of the mortar and resulting in a decline in the performance of the finished mortar. Third, conventional mixing devices have weak shearing action, easily creating mixing dead zones, resulting in low mixing efficiency and making it difficult to achieve large-scale, highly uniform dry mortar preparation.

[0004] To address the aforementioned issues, mixing devices with crushing functions have emerged in the industry. However, these devices mostly employ rigid crushing structures, separating crushing and mixing functions. They cannot achieve simultaneous flexible shearing and crushing during the mixing process, making it difficult to balance crushing effectiveness with the protection of mortar particle size distribution. Therefore, there is an urgent need to develop a dry mortar mixing device and process that combines efficient mixing with flexible shearing and crushing functions. Summary of the Invention

[0005] The purpose of this invention is to provide a dry mortar mixing device and process with flexible shearing and crushing function, so as to solve the problems mentioned in the background art that conventional dry mortar mixing devices cannot effectively crush lumps, rigid mixing easily damages the mortar particle size distribution, and has low mixing uniformity and efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: On one hand, the present invention provides a dry mortar mixing device with flexible shearing and crushing function, comprising a shell, a cover plate covering the top of the shell, a rotating component mounted on the cover plate, and at least one set of flexible mixing components mounted on the output end of the rotating component; the flexible mixing component includes a mixing shell, with rotating sealing plates sealed at both the upper and lower ends of the mixing shell, and a fixed internal toothed ring coaxially fixed between the two sets of rotating sealing plates; the side wall of the mixing shell is provided with multiple conductive pipes at equal intervals along the circumference; the mixing shell... A central support is coaxially arranged inside the shell. The two ends of the central support are rotatably connected to two sets of rotating sealing plates. Multiple sets of elastic telescopic rods are hinged at equal intervals along the circumference of the side wall of the central support. Each set of elastic telescopic rods has a stirring and crushing roller rotatably installed at its telescopic end. The axis of the stirring and crushing roller is spatially offset from the axis of the guide pipe. The roller surface of the stirring and crushing roller forms a misaligned blocking fit with the opening of the guide pipe. Through the misaligned blocking between the stirring and crushing roller and the guide pipe when the central support rotates, the dry powder mortar entering and exiting the guide pipe is subjected to flexible shearing, crushing and stirring.

[0007] As a further improvement to this technical solution, the rotating component includes a rotating motor fixedly installed on the top of the cover plate, a transmission module connected to the output end of the rotating motor, and a transmission shaft vertically rotatably installed at the center of the cover plate. The top end of the transmission shaft is fixedly connected to the output end of the transmission module, and a transmission connector is coaxially fixed to the bottom end of the transmission shaft. Multiple connecting rods are fixed at equal intervals along the circumference of the side wall of the transmission connector, and the ends of the connecting rods are fixedly connected to the outer wall of the stirring shell of the flexible stirring component.

[0008] As a further improvement to this technical solution, the bottom end of the drive shaft extends downward and passes through two sets of rotating sealing plates. A drive turbine is coaxially fixed on the drive shaft. The drive turbine is located at the internal center of the stirring shell. The central support is a hollow cylindrical structure. The drive turbine is located in the inner cavity of the central support. A connecting shaft is rotatably installed on the side wall of the central support corresponding to the position of the drive turbine. A driven turbine that meshes with the drive turbine is fixed at one end of the connecting shaft. A drive gear is fixed at the other end of the connecting shaft. At least one set of planetary gears meshes with the fixed internal gear ring.

[0009] As a further improvement to this technical solution, both the upper and lower ends of the central support are coaxially fixed with driven rotating disks. The edge of the driven rotating disk is rotatably connected to the rotating sealing plate. The disk surface of the driven rotating disk is radially provided with sliding through grooves corresponding to the elastic telescopic rods. Sliding limiting components are slidably installed in the sliding through grooves. Both ends of the elastic telescopic rod are respectively hinged to the sliding limiting components on the corresponding sides. Both the upper and lower ends of the stirring and crushing roller are rotatably installed with fixed rotating rings. The telescopic end of the elastic telescopic rod is fixedly connected to the outer wall of the fixed rotating ring.

[0010] As a further improvement to this technical solution, the elastic telescopic rod includes a fixed sleeve, a telescopic rod slidably inserted into the fixed sleeve, and a buffer spring disposed in the inner cavity of the fixed sleeve. The two ends of the buffer spring are fixedly connected to the bottom of the fixed sleeve and the inner end of the telescopic rod, respectively. The end of the fixed sleeve is hinged to a sliding limiting member, and the outer end of the telescopic rod is fixedly connected to a fixed rotating ring.

[0011] As a further improvement to this technical solution, the axis of the guide tube is arranged radially along the stirring shell, the axis of the stirring and crushing roller is parallel to the axis of the stirring shell, and the roller surface of the stirring and crushing roller forms an adjustable shearing gap of 0.5-5mm with the inner opening of the guide tube during rotation. The roller length of the stirring and crushing roller is greater than or equal to the diameter of the opening of the guide tube.

[0012] As a further improvement to this technical solution, at least two sets of flexible stirring components are arranged at equal intervals along the axial direction of the drive shaft, and the stirring shells of adjacent sets of flexible stirring components are fixedly connected by connecting rods.

[0013] As a further improvement to this technical solution, the roller surface of the mixing and crushing roller is integrally formed with spiral crushing ribs, and the edges of the crushing ribs are rounded.

[0014] As a further improvement to this technical solution, the transmission module includes a driving pulley, a driven pulley, and a transmission belt. The driving pulley is coaxially fixed to the output shaft of the rotating motor, the driven pulley is coaxially fixed to the top of the transmission shaft, and the transmission belt is sleeved between the driving pulley and the driven pulley.

[0015] On the other hand, the present invention provides a dry mortar mixing process with flexible shearing and crushing function, implemented using the aforementioned dry mortar mixing device with flexible shearing and crushing function, including the following steps: S1, feeding: dry mortar raw materials are fed into the shell according to the proportion, and the cover is closed; S2, revolution mixing drive: the rotating motor is started, and the transmission module drives the transmission shaft to rotate, which in turn drives the flexible mixing component to revolve around the transmission shaft through the transmission connector and connecting rod, thereby mixing the dry mortar in the shell as a whole; S3, flexible shearing and crushing mixing: while the flexible mixing component revolves, the active turbine rotates synchronously with the transmission shaft. The turbine meshing and gear transmission drive the central support to rotate around its own axis, thereby driving multiple sets of mixing and crushing rollers to make circular motion inside the mixing shell. Under the centrifugal force of the revolution mixing, the dry mortar enters and exits the mixing shell through the guide pipe. When the mixing and crushing rollers rotate, they form a misaligned obstruction with the guide pipe, forming a shearing force on the dry mortar entering and exiting, breaking up the lumps in the mortar. At the same time, through the elastic extension and contraction of the elastic telescopic rod, the mixing and crushing rollers form a flexible contact with the opening of the guide pipe, realizing flexible shearing, crushing and mixing. S4, Discharge: After the mixing is completed, the rotating motor is turned off and the discharge port at the bottom of the shell is opened to complete the discharge of the dry mortar.

[0016] Furthermore, the beneficial effects of the present invention are as follows: 1. In this invention, the mixing and crushing roller and the guide pipe are arranged in a spatially staggered manner to form a staggered blocking cooperation. During the mixing process, when the dry powder mortar enters and exits the mixing shell through the guide pipe, the rotating mixing and crushing roller will form a continuous shearing action on the material, which can efficiently crush the damp lumps in the mortar, realize the simultaneous mixing and crushing, and eliminate the need for an additional crushing process, thus greatly improving the mixing efficiency and the uniformity of the finished mortar.

[0017] 2. In this invention, the mixing and crushing roller is installed using an elastic telescopic rod, which allows the mixing and crushing roller to have a flexible telescopic allowance when it is in contact with the material and the opening of the guide pipe. On the one hand, this can avoid excessive grinding of the mortar aggregate by rigid impact, effectively protect the particle size distribution of the dry powder mortar, and ensure the construction performance and mechanical properties of the finished mortar. On the other hand, it can adapt to agglomerated materials of different particle sizes. By elastically telescopically adjusting the shear gap, the crushing effect is improved while avoiding jamming failures of the device and improving operational stability.

[0018] 3. In this invention, the rotating component drives the flexible stirring component to perform overall stirring by revolution, while the turbine and planetary gear drive the stirring and crushing roller to perform a self-rotating circular motion, forming a composite stirring mode of revolution and rotation. Combined with the material conduction function of the guide pipe, the stirring dead corners in the shell can be eliminated, so that the material forms a continuous cyclic shearing and stirring, further improving the stirring uniformity. It is suitable for the continuous preparation of large batches of dry powder mortar.

[0019] 4. The mixing process provided by this invention is simple and controllable, and can simultaneously achieve uniform mixing of dry mortar and flexible shearing and crushing of agglomerates. While improving production efficiency, it effectively ensures the quality stability of the finished dry mortar, adapts to the preparation needs of dry mortar with different formulations, and has a wide range of applications. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure assembly of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the flexible stirring component in this invention; Figure 4 This is a schematic diagram of the internal transmission structure of the flexible stirring component in this invention; Figure 5 This is a schematic diagram of the assembly structure of the central support and the stirring and crushing roller in this invention; Figure 6 This is a schematic diagram of the assembly structure of the driven rotating disk and the elastic telescopic rod in this invention; Figure 7 This is a schematic diagram of the misaligned fit between the stirring and crushing roller and the guide tube in this invention.

[0021] The labels in the diagram represent the following: 1. Shell; 2. Cover plate; 3. Rotating component; 301. Rotating motor; 302. Transmission module; 303. Transmission shaft; 304. Transmission connector; 305. Connecting rod; 4. Flexible stirring component; 401. Stirring shell; 402. Active turbine; 403. Connecting shaft; 404. Fixed internal gear ring; 405. Rotating sealing plate; 406. Conductor pipe; 407. Belt drive assembly; 408. Central support component; 409. Elastic telescopic rod; 410. Stirring and crushing roller; 411. Fixed rotating ring; 412. Driven rotating disk; 413. Sliding groove; 414. Sliding limit component; 415. Drive gear; 416. Planetary gear. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1 Please see Figures 1-7As shown, this embodiment provides a dry mortar mixing device with flexible shearing and crushing function, including a shell 1, a cover plate 2 covering the top of the shell 1, a rotating component 3 installed on the cover plate 2, and two sets of flexible mixing components 4 installed at the output end of the rotating component 3. The shell 1 is a vertical cylindrical structure with an open top. A discharge port with a valve is provided at the center of the bottom of the shell 1 to facilitate the discharge of finished mortar. The cover plate 2 is detachably installed at the open top of the shell 1 by bolts to ensure the sealing of the mixing process and prevent dust from overflowing.

[0024] The rotating component 3 includes a rotating motor 301 fixedly mounted on the top of the cover plate 2, a transmission module 302 connected to the output end of the rotating motor 301, and a transmission shaft 303 vertically rotatably mounted at the center of the cover plate 2. Specifically, the transmission module 302 includes a driving pulley, a driven pulley, and a transmission belt. The driving pulley is coaxially fixed to the output shaft of the rotating motor 301, the driven pulley is coaxially fixed to the top end of the transmission shaft 303, and the transmission belt is sleeved between the driving pulley and the driven pulley. Stable power transmission is achieved through belt drive, while also providing overload protection. The drive shaft 303 is rotatably connected to the cover plate 2 via bearings. A drive connector 304 is coaxially fixed at the bottom end of the drive shaft 303. Four connecting rods 305 are fixed at equal intervals along the circumference of the side wall of the drive connector 304. The ends of the connecting rods 305 are fixedly connected to the outer wall of the stirring shell 401 of the flexible stirring component 4. By rotating the drive shaft 303, the flexible stirring component 4 can be driven to revolve around the drive shaft 303, thereby realizing the overall stirring of the material inside the shell 1.

[0025] Flexible stirring components 4 are arranged at equal intervals along the axial direction of the drive shaft 303. The stirring shells 401 of the two sets of flexible stirring components 4 are also fixedly connected by connecting rods 305 to ensure the synchronization of transmission and structural stability. The flexible stirring component 4 includes a stirring shell 401, which is a cylindrical structure with open ends. Rotary sealing plates 405 are installed at both ends of the stirring shell 401 through bearings. The bottom end of the drive shaft 303 extends downward and passes through the rotating sealing plates 405 of the two sets of flexible stirring components 4 in sequence. The drive shaft 303 and the rotating sealing plates 405 are rotatably connected by bearings to ensure that the rotating sealing plates 405 and the drive shaft 303 can rotate relative to each other.

[0026] Two sets of rotating sealing plates 405 are coaxially fixed with a fixed inner toothed ring 404. The outer wall of the fixed inner toothed ring 404 is fixedly connected to the inner wall of the stirring shell 401. Multiple guide tubes 406 are evenly spaced along the circumference of the side wall of the stirring shell 401. The guide tubes 406 are circular tube structures with both ends through. The axis of the guide tubes 406 is arranged radially along the stirring shell 401, so that the inner and outer cavities of the stirring shell 401 are connected through the guide tubes 406, and the material can enter and exit the stirring shell 401 through the guide tubes 406.

[0027] A central support member 408 is coaxially arranged inside the stirring shell 401. The central support member 408 is a hollow cylindrical structure. Both the upper and lower ends of the central support member 408 are coaxially fixed with driven rotating disks 412. The edges of the driven rotating disks 412 are rotatably connected to the rotating sealing plate 405 through bearings, so that the central support member 408 can rotate freely around its own axis inside the stirring shell 401.

[0028] A drive turbine 402 is coaxially fixed on the drive shaft 303. The drive turbine 402 is located at the center of the mixing shell 401 and within the cavity of the central support member 408. A connecting shaft 403 is rotatably mounted on the side wall of the central support member 408 corresponding to the position of the drive turbine 402 via bearings. One end of the connecting shaft 403 is fixed with a driven turbine that meshes with the drive turbine 402, and the other end of the connecting shaft 403 is fixed with a drive gear 415. Two sets of planetary gears 416 mesh between the drive gear 415 and the fixed internal gear ring 404. When the drive shaft 303 drives the drive turbine 402 to rotate, the turbine meshes and drives the connecting shaft 403 to rotate, which in turn drives the drive gear 415 to rotate. Through the meshing of the planetary gears 416 and the fixed internal gear ring 404, the central support member 408 rotates around its own axis, forming a planetary gear transmission system. This achieves stable speed reduction and torque increase, ensuring the shearing and crushing force of the mixing and crushing roller 410.

[0029] The sidewall of the central support member 408 is hinged with four sets of elastic telescopic rods 409 at equal intervals along the circumference. The disk surface of the driven rotating disk 412 is provided with sliding through grooves 413 that correspond one-to-one with the elastic telescopic rods 409. Sliding limiters 414 are slidably installed in the sliding through grooves 413. The two ends of the elastic telescopic rods 409 are respectively hinged to the sliding limiters 414 on the corresponding sides, so that the elastic telescopic rods 409 can slide radially adaptively along the sliding through grooves 413, and can swing slightly around the hinge point.

[0030] Each set of elastic telescopic rods 409 has a stirring and crushing roller 410 rotatably mounted on its telescopic end. Specifically, both the upper and lower ends of the stirring and crushing roller 410 are rotatably mounted with a fixed rotating ring 411 via bearings. The telescopic end of the elastic telescopic rod 409 is fixedly connected to the outer wall of the fixed rotating ring 411. The elastic telescopic rod 409 includes a fixed sleeve, a telescopic rod slidably inserted into the fixed sleeve, and a buffer spring disposed in the inner cavity of the fixed sleeve. The two ends of the buffer spring are fixedly connected to the bottom of the fixed sleeve and the inner end of the telescopic rod, respectively. The end of the fixed sleeve is hinged to the sliding limiting member 414, and the outer end of the telescopic rod is fixedly connected to the fixed rotating ring 411. Through the elastic force of the buffer spring, the stirring and crushing roller 410 has a radial flexible telescopic margin, achieving flexible contact.

[0031] The axis of the mixing and crushing roller 410 is parallel to the axis of the mixing shell 401 and spatially offset from the axis of the guide pipe 406. The roller surface of the mixing and crushing roller 410 forms a offset blocking fit with the inner opening of the guide pipe 406. Specifically, during rotation, the roller surface of the mixing and crushing roller 410 forms an adjustable shearing gap of 0.5-5mm with the inner opening of the guide pipe 406. The roller length of the mixing and crushing roller 410 is greater than or equal to the diameter of the opening of the guide pipe 406, ensuring that the mixing and crushing roller 410 can completely cover the opening of the guide pipe 406, effectively shearing and crushing all materials entering and exiting through the guide pipe 406.

[0032] In addition, the roller surface of the mixing and crushing roller 410 is integrally formed with spiral crushing ribs, and the edges of the crushing ribs are rounded. While improving the shearing and crushing effect, it avoids excessive crushing of mortar aggregate by sharp edges and further protects the particle size distribution of mortar.

[0033] Through the staggered blocking core structure of the mixing and crushing roller 410 and the guide tube 406, the shearing and crushing functions are deeply integrated with the mixing function. While the flexible mixing component 4 completes the overall mixing of the whole area by revolution, it can simultaneously and efficiently crush the damp lumps of dry mortar without the need for an additional independent crushing process, which greatly shortens the production process. With the combined mixing mode of revolution and rotation, the mixing dead corners are completely eliminated. Compared with the traditional rigid mixing device, the mixing efficiency is significantly improved, which is suitable for the production needs of large batches and continuous dry mortar. The flexible structure of the elastic telescopic rod 409 and the mixing and crushing roller 410 enables adaptive flexible contact during the shearing process. On the one hand, it can form a stable shearing force on agglomerated materials of different particle sizes, resulting in thorough crushing and solving the problems of incomplete agglomeration, particle agglomeration, and uneven mixing in traditional devices. On the other hand, it can avoid excessive grinding of mortar aggregates by rigid impact, accurately protect the particle size distribution of dry mortar, and ensure the workability, mechanical strength, and construction stability of finished mortar from the source, thus significantly improving the yield of finished products. The system employs a combined transmission structure of belt drive, turbine, and planetary gear system, ensuring smooth transmission while providing excellent speed reduction, torque amplification, and overload protection, thus offering ample and stable shearing and crushing force. The adaptive telescopic design of the elastic telescopic rod 409 effectively avoids equipment jamming caused by large-diameter aggregates, extending the equipment's service life. The modular flexible mixing component 4 allows for flexible adjustment of the number of units according to production capacity requirements, facilitating disassembly, assembly, and maintenance. It is suitable for preparing various types of dry mortars, including masonry, plastering, and flooring, making it widely applicable.

[0034] Example 2 This embodiment provides a dry mortar mixing process with flexible shearing and crushing function, implemented using the dry mortar mixing device with flexible shearing and crushing function in Embodiment 1, including the following steps: S1. Feeding: Add the aggregates, cementitious materials, additives and other raw materials of dry mortar into the shell 1 in the design ratio, cover the cover plate 2 and lock it with bolts to ensure the airtightness of the mixing process. S2, Revolutionary Stirring Drive: Start the rotating motor 301. The rotating motor 301 drives the transmission shaft 303 to rotate at a constant speed through the belt drive of the transmission module 302. When the transmission shaft 303 rotates, it drives the two sets of flexible stirring components 4 to revolve around the transmission shaft 303 through the transmission connector 304 and the connecting rod 305 at the bottom end, so as to carry out the overall circumferential stirring of the dry powder mortar raw materials in the shell 1, so that the material forms a circumferential flow in the shell 1. S3. Flexible Shearing, Crushing, and Mixing: While the flexible mixing component 4 revolves with the drive shaft 303, the active turbine 402 rotates synchronously with the drive shaft 303. Through the meshing transmission between the active turbine 402 and the driven turbine, the connecting shaft 403 rotates, which in turn drives the active gear 415 to rotate. Through the meshing transmission between the planetary gear 416 and the fixed internal gear ring 404, the central support component 408 rotates around its own axis. When the central support component 408 rotates, it drives the four sets of mixing and crushing rollers 410 to make circular motion in the inner cavity of the mixing shell 401. At this time, under the centrifugal force of the revolving mixing, the dry mortar raw material continuously enters the mixing shell 401 through the guide pipe 406. The material flows out through the inner cavity of the guide pipe 406 on the other side, forming a circulating flow of material. During the rotation of the mixing and crushing roller 410, it forms a continuous misaligned obstruction with the opening of the guide pipe 406, generating a high-frequency shearing force on the material entering and exiting the guide pipe 406, which can efficiently shear and crush the damp lumps in the material. At the same time, when encountering large-diameter lumps or hard aggregates, the mixing and crushing roller 410 can adaptively adjust the shearing gap with the opening of the guide pipe 406 through the elastic extension and contraction of the elastic telescopic rod 409, forming a flexible contact and avoiding rigid impact. While achieving the crushing of lumps, it effectively protects the particle size distribution of mortar aggregates, eliminates mixing dead corners, and achieves all-round uniform mixing of materials. S4. Discharge: After the preset mixing time, once the uniformity of the dry mortar is tested and found to be up to standard, turn off the rotating motor 301. After the device has completely stopped, open the valve at the discharge port at the bottom of the shell 1 to complete the discharge of the finished dry mortar.

[0035] This embodiment features simple steps and easily adjustable process parameters, enabling simultaneous material mixing and flexible crushing throughout the entire process without any additional redundant steps, thus having a low operational threshold. The entire process is completed within a sealed shell 1, which effectively reduces dust spillage during the mixing process and meets environmental protection production requirements. At the same time, it can be adapted to the production of dry mortar with different formulas and batches, and the finished mortar has strong component uniformity and quality stability, enabling large-scale and standardized dry mortar preparation.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry mortar mixing device with flexible shearing and crushing function, characterized in that, It includes a housing (1), a cover plate (2) covering the top of the housing (1), a rotating component (3) mounted on the cover plate (2), and at least one set of flexible stirring components (4) mounted on the output end of the rotating component (3). The flexible stirring component (4) includes a stirring shell (401). Rotary sealing plates (405) are sealed at both the upper and lower ends of the stirring shell (401). A fixed internal toothed ring (404) is coaxially fixed between the two sets of rotating sealing plates (405). Multiple conductive pipes (406) are evenly spaced along the circumferential direction on the sidewall of the stirring shell (401). A central support member (408) is coaxially arranged inside the stirring shell (401). Both ends of the central support member (408) are rotatably connected to the two sets of rotating sealing plates (405), respectively. The sidewall of the central support member (408)... Multiple sets of elastic telescopic rods (409) are hinged at equal intervals along the circumference. Each set of elastic telescopic rods (409) has a stirring and crushing roller (410) rotatably installed at its telescopic end. The axis of the stirring and crushing roller (410) is spatially misaligned with the axis of the guide pipe (406). The roller surface of the stirring and crushing roller (410) and the opening of the guide pipe (406) form a misaligned blocking fit. Through the misaligned blocking between the stirring and crushing roller (410) and the guide pipe (406) when the stirring and crushing roller (410) rotates with the central support (408), the dry powder mortar entering and exiting the guide pipe (406) is subjected to flexible shearing, crushing and stirring.

2. The dry mortar mixing device with flexible shearing and crushing function according to claim 1, characterized in that, The rotating component (3) includes a rotating motor (301) fixedly installed on the top of the cover plate (2), a transmission module (302) connected to the output end of the rotating motor (301), and a transmission shaft (303) vertically rotatably installed at the center of the cover plate (2). The top end of the transmission shaft (303) is fixedly connected to the output end of the transmission module (302). The bottom end of the transmission shaft (303) is coaxially fixed with a transmission connector (304). The side wall of the transmission connector (304) is fixed with multiple connecting rods (305) at equal intervals along the circumference. The ends of the connecting rods (305) are fixedly connected to the outer wall of the stirring shell (401) of the flexible stirring component (4).

3. The dry mortar mixing device with flexible shearing and crushing function according to claim 2, characterized in that, The bottom end of the drive shaft (303) extends downward and passes through two sets of rotating sealing plates (405). An active turbine (402) is coaxially fixed on the drive shaft (303). The active turbine (402) is located at the center of the stirring shell (401). The central support (408) is a hollow cylindrical structure. The active turbine (402) is located in the inner cavity of the central support (408). A connecting shaft (403) is rotatably installed on the side wall of the central support (408) corresponding to the position of the active turbine (402). One end of the connecting shaft (403) is fixed with a driven turbine that meshes with the active turbine (402). The other end of the connecting shaft (403) is fixed with an active gear (415). At least one set of planetary gears (416) meshes with the fixed internal gear ring (404).

4. The dry mortar mixing device with flexible shearing and crushing function according to claim 3, characterized in that, Both ends of the central support member (408) are coaxially fixed with driven rotating disks (412). The edge of the driven rotating disk (412) is rotatably connected to the rotating sealing plate (405). The disk surface of the driven rotating disk (412) is radially provided with sliding through grooves (413) corresponding to the elastic telescopic rods (409). Sliding limiters (414) are slidably installed in the sliding through grooves (413). Both ends of the elastic telescopic rods (409) are respectively hinged to the sliding limiters (414) on the corresponding sides. Both ends of the stirring and crushing roller (410) are rotatably installed with fixed rotating rings (411). The telescopic end of the elastic telescopic rod (409) is fixedly connected to the outer wall of the fixed rotating ring (411).

5. The dry mortar mixing device with flexible shearing and crushing function according to claim 4, characterized in that, The elastic telescopic rod (409) includes a fixed sleeve, a telescopic rod slidably inserted into the fixed sleeve, and a buffer spring disposed in the inner cavity of the fixed sleeve. The two ends of the buffer spring are fixedly connected to the bottom of the fixed sleeve and the inner end of the telescopic rod, respectively. The end of the fixed sleeve is hinged to the sliding limit member (414), and the outer end of the telescopic rod is fixedly connected to the fixed rotating ring (411).

6. The dry mortar mixing device with flexible shearing and crushing function according to claim 1, characterized in that, The axis of the guide tube (406) is arranged radially along the stirring shell (401), the axis of the stirring and crushing roller (410) is parallel to the axis of the stirring shell (401), the roller surface of the stirring and crushing roller (410) forms an adjustable shear gap of 0.5-5mm with the inner opening of the guide tube (406) during rotation, and the roller length of the stirring and crushing roller (410) is greater than or equal to the diameter of the opening of the guide tube (406).

7. The dry mortar mixing device with flexible shearing and crushing function according to claim 1, characterized in that, The flexible stirring component (4) is provided in at least two sets at equal intervals along the axial direction of the drive shaft (303), and the stirring shells (401) of two adjacent sets of flexible stirring components (4) are fixedly connected by connecting rods (305).

8. The dry mortar mixing device with flexible shearing and crushing function according to claim 1, characterized in that, The surface of the mixing and crushing roller (410) is integrally formed with spiral crushing ribs, and the edges of the crushing ribs are rounded.

9. The dry mortar mixing device with flexible shearing and crushing function according to claim 2, characterized in that, The transmission module (302) includes a driving pulley, a driven pulley and a transmission belt. The driving pulley is coaxially fixed to the output shaft of the rotating motor (301), the driven pulley is coaxially fixed to the top of the transmission shaft (303), and the transmission belt is sleeved between the driving pulley and the driven pulley.

10. A dry powder mortar mixing process with flexible shearing and crushing function, characterized in that, The dry mortar mixing device with flexible shearing and crushing function as described in any one of claims 1-9 is used, and includes the following steps: S1. Feeding: Put the dry mortar raw materials into the shell (1) according to the proportion and cover the cover plate (2). S2, Revolutionary stirring drive: Start the rotating motor (301), drive the transmission shaft (303) to rotate through the transmission module (302), and then drive the flexible stirring component (4) to revolve around the transmission shaft (303) through the transmission connector (304) and the connecting rod (305) to stir the dry powder mortar in the shell (1) as a whole; S3, Flexible shearing and crushing mixing: While the flexible mixing component (4) revolves, the active turbine (402) rotates synchronously with the transmission shaft (303). Through turbine meshing and gear transmission, the central support component (408) rotates around its own axis, thereby driving multiple sets of mixing and crushing rollers (410) to make circular motion in the mixing shell (401). Under the centrifugal force of the revolving mixing, the dry mortar enters and exits the mixing shell (401) through the guide pipe (406). When the mixing and crushing roller (410) rotates, it forms a misaligned block with the guide pipe (406), forming a shearing force on the dry mortar entering and exiting, breaking the lumps in the mortar. At the same time, through the elastic extension and contraction of the elastic telescopic rod (409), the mixing and crushing roller (410) and the pipe opening of the guide pipe (406) form a flexible contact, realizing flexible shearing and crushing and mixing. S4. Unloading: After mixing, turn off the rotating motor (301), open the unloading port at the bottom of the shell (1), and complete the discharge of dry mortar.

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