Grinding device for concrete expansive agent production

By introducing a vertical shaft, spiral blades, and a vibrating motor into the concrete expansion agent grinding equipment, the problem of raw material accumulation and blockage was solved, achieving efficient material conveying and grinding.

CN224072163UActive Publication Date: 2026-04-03TIANJIN BAOMING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing concrete expansion agent grinding equipment, raw materials tend to accumulate on the surface of the grinding blocks during use, leading to blockage and affecting grinding efficiency.

Method used

A structure including a vertical shaft, grinding block, grinding seat, spiral blades and retaining rings was designed. Combined with a vibrating motor and a counterweight, the vertical shaft rotates to drive the spiral blades to transport raw materials, and the vibrating motor generates vibration to prevent accumulation.

Benefits of technology

It effectively prevents raw materials from accumulating and clogging at the opening on the surface of the grinding seat, improves grinding efficiency, and ensures stable material conveying and uniform grinding.

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Abstract

The utility model relates to the technical field of concrete expansive agent grinding equipment, in particular to a grinding device for concrete expansive agent production, which comprises a machine body, a vertical shaft for transmission is rotatably mounted in the machine body, and a grinding block for grinding a concrete expansive agent is assembled at one end, positioned in the machine body, of the vertical shaft. A grinding seat matched with the grinding block is assembled in the machine body; in the using process of the grinding equipment for the concrete expansive agent, raw materials can be conveniently poured into the machine body, then the vertical shaft in the machine body is driven to rotate under the operation of the driving mechanism, and the vertical shaft drives the grinding block to be matched with the grinding base in the machine body so that the raw materials can be ground and machined conveniently; and the vertical shaft rotates to drive the spiral piece to rotate, so that the raw materials sliding off from the surface of the grinding seat can more stably slide to the position between the grinding block and the grinding seat under spiral conveying, the raw materials can be conveniently ground, and the situation that the raw materials are accumulated and blocked at the opening in the surface of the grinding seat is conveniently reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of concrete expansion agent grinding equipment, specifically to a grinding device for producing concrete expansion agent. Background Technology

[0002] The concrete expansive agent is a calcium sulfoaluminate type concrete expansive agent, free of sodium salts, and unlikely to cause alkali-aggregate reaction in concrete. It exhibits good durability, stable expansion performance, and continuously increasing strength. Ordinary concrete often leaks due to shrinkage cracking, reducing its functionality and durability. Adding 8%-12% expansive agent to cement can produce shrinkage-compensating concrete, significantly improving the crack resistance and waterproofing of concrete structures. This eliminates the need for external waterproofing, extends the spacing of post-pouring joints, and prevents temperature difference cracks in large-volume and high-strength concrete. Patent number CN202022754703.7 discloses a grinding mechanism for concrete expansive agent production raw materials, which can adjust the size of grinding particles through hydraulic cylinder lifting, allowing the equipment to adapt to different working requirements and avoiding the low efficiency of manual operation. However, during the use of grinding equipment for concrete expansive agents, the raw materials tend to accumulate at the opening in the middle of the grinding block when sliding on the surface, easily leading to blockage and affecting the grinding process. Therefore, we propose a grinding device for concrete expansive agent production. Utility Model Content

[0003] To address the problems in the prior art, this utility model provides a grinding device for producing concrete expansion agents.

[0004] The technical solution adopted by this utility model to solve its technical problem is a grinding device for producing concrete expansion agent, including a machine body, a vertical shaft for transmission is rotatably installed in the machine body, and a grinding block for grinding concrete expansion agent is assembled at one end of the vertical shaft located in the machine body. A grinding seat adapted to the grinding block is assembled in the machine body, and a spiral blade for guiding material is assembled on the outer periphery of the vertical shaft. There are multiple sets of spiral blades, and a retaining ring located at the top of the spiral blade is assembled on the outer periphery of the vertical shaft.

[0005] The bottom surface of the machine body is equipped with a support plate, and a frame is installed at the end of the plate away from the machine body. A vibration motor is installed inside the frame, and a counterweight is installed at the end of the frame away from the plate.

[0006] By adopting the above technical solution, during the use of the grinding equipment for concrete expansion agent, the raw material can be conveniently poured into the machine body. Then, under the operation of the drive mechanism, the vertical shaft inside the machine body is rotated. The vertical shaft drives the grinding block and the grinding seat inside the machine body to cooperate with each other to facilitate the grinding of the raw material. The rotation of the vertical shaft can also drive the spiral blade to rotate, so that the raw material sliding off the surface of the grinding seat can slide more stably between the grinding block and the grinding seat under the spiral conveyor, which facilitates the grinding process and reduces the accumulation and blockage of raw material at the opening on the surface of the grinding seat.

[0007] When grinding concrete expansion agent raw materials, the vibrating motor on the bottom frame of the machine body can operate and generate large vibrations, which in turn causes the machine body to vibrate. This allows the raw materials inside the machine body to move during and after grinding, thereby improving the grinding efficiency of the materials and further reducing the accumulation of materials inside the machine body.

[0008] Specifically, the bottom surface of the machine body is bolted with a bottom ring for auxiliary support, and a spring for buffering is mounted on the end of the bottom ring away from the machine body. There are multiple sets of springs, and a base for support is mounted on the end of the spring away from the bottom ring.

[0009] By adopting the above technical solution, the multiple sets of springs between the base and the bottom ring facilitate elastic support for the bottom ring, while the bottom ring is connected to the machine body, so that the machine body can be elastically supported and can be stably vibrated under the operation of the vibration motor, so that the raw materials inside the machine body can move and displace under vibration, which is convenient for grinding.

[0010] Specifically, a shock absorber located on the inner circumference of the spring is assembled between the base and the bottom ring, and there are three sets of shock absorbers.

[0011] By adopting the above technical solution, the shock absorber between the bottom ring and the base can provide a certain degree of suppression, so that the machine body can vibrate stably without tipping over due to excessive vibration force. At the same time, when the vibration motor stops operating, the machine body can also slowly stop vibrating.

[0012] Specifically, a corrugated rubber sleeve for protection is fitted between the base and the bottom ring, and a sponge pad is fitted on the inner side of the base and the bottom surface.

[0013] By adopting the above technical solution, the corrugated rubber sleeve can easily protect the space between the bottom ring and the base, so that the structure between the two can operate more stably. The sponge pad on the outer periphery of the base can provide a certain cushioning and protection performance, so that the base can support the bottom ring more stably.

[0014] Specifically, the bottom surface of the body is integrally constructed with a support rod, and there are multiple sets of support rods. The bottom ring is equipped with a sliding sleeve that is inserted and connected to the support rod, and there are multiple sets of sliding sleeves.

[0015] By adopting the above technical solution, the insertion rod and the sliding sleeve are interlocked, which facilitates the improvement of the stability of the connection between the machine body and the bottom ring and reduces the misalignment that may occur after the connection, so that the machine body can stably grind the raw materials.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of a vertical shaft, grinding blocks, grinding seats, spiral blades, and retaining rings, allows for convenient pouring of raw materials into the machine body during the use of grinding equipment for concrete expansion agents. Then, under the operation of the drive mechanism, the vertical shaft inside the machine body rotates. The vertical shaft drives the grinding blocks to cooperate with the grinding seats inside the machine body to facilitate the grinding of the raw materials. Furthermore, the rotation of the vertical shaft can drive the spiral blades to rotate, allowing the raw materials sliding off the surface of the grinding seats to slide more stably between the grinding blocks and the grinding seats under the spiral conveyor, facilitating the grinding process and reducing the accumulation and blockage of raw materials at the openings on the surface of the grinding seats.

[0018] 2. The technical solution of this application, through the design of the disc base, frame, vibrating motor and counterweight, enables the vibrating motor on the bottom frame of the machine to operate and generate large vibrations when grinding concrete expansion agent raw materials, thereby causing the machine body to vibrate and allowing the raw materials inside the machine to move during and after grinding, thereby improving the grinding efficiency of the materials and further reducing the accumulation of materials inside the machine body. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an isometric view of the present invention;

[0021] Figure 2 This is a schematic plan view of the internal structure of the machine body of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure at point A on the inner side of the body of this utility model;

[0023] In the diagram: 1. Machine body; 2. Vertical shaft; 3. Grinding block; 4. Grinding seat; 5. Spiral blade; 6. Retaining ring; 7. Disc base; 8. Frame; 9. Vibration motor; 10. Counterweight; 11. Bottom ring; 12. Spring; 13. Base; 14. Shock absorber; 15. Sponge pad; 16. Sliding sleeve; 17. Insert rod; 18. Corrugated rubber sleeve. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please see Figure 1-3 This utility model provides a technical solution: a grinding device for producing concrete expansion agent, comprising a body 1, a vertical shaft 2 for transmission rotatably mounted inside the body 1, and a grinding block 3 for grinding concrete expansion agent is assembled at one end of the vertical shaft 2 inside the body 1. A grinding seat 4 adapted to the grinding block 3 is assembled inside the body 1, and a spiral blade 5 for guiding material is assembled on the outer periphery of the vertical shaft 2, and there are multiple sets of spiral blades 5. A retaining ring 6 located at the top of the spiral blade 5 is assembled on the outer periphery of the vertical shaft 2. A disc seat 7 for support is assembled on the bottom surface of the body 1, and a frame 8 is assembled at the end of the disc seat 7 away from the body 1. A vibration motor 9 is assembled inside the frame 8, and a counterweight 10 is assembled at the end of the frame 8 away from the disc seat 7.

[0026] When using the grinding equipment for concrete expansion agent, the raw material can be easily poured into the machine body 1. Then, under the operation of the drive mechanism, the vertical shaft 2 inside the machine body 1 is rotated. The vertical shaft 2 drives the grinding block 3 to cooperate with the grinding seat 4 inside the machine body 1 to facilitate the grinding of the raw material. The rotation of the vertical shaft 2 can also drive the spiral blade 5 to rotate, so that the raw material sliding off the surface of the grinding seat 4 can slide more stably between the grinding block 3 and the grinding seat 4 under the spiral conveyor, which facilitates the grinding process and reduces the accumulation and blockage of raw material at the opening on the surface of the grinding seat 4.

[0027] When grinding the raw materials of concrete expansion agent, the vibration motor 9 on the bottom frame 8 of the machine body 1 can operate and generate a large vibration, thereby causing the machine body 1 to vibrate. This allows the raw materials inside the machine body 1 to move during and after grinding, thereby improving the grinding efficiency of the materials and further reducing the accumulation of materials inside the machine body 1.

[0028] like Figure 2 As shown, a bottom ring 11 for auxiliary support is bolted to the bottom surface of the body 1, and a spring 12 for buffering is mounted on the end of the bottom ring 11 away from the body 1. There are multiple sets of springs 12, and a base 13 for support is mounted on the end of the spring 12 away from the bottom ring 11.

[0029] During use, the multiple sets of springs 12 between the base 13 and the bottom ring 11 provide elastic support for the bottom ring 11. The bottom ring 11 is connected to the machine body 1, which allows the machine body 1 to be elastically supported and to vibrate stably under the operation of the vibration motor 9. This allows the raw materials inside the machine body 1 to move and displace under vibration, making it convenient for grinding.

[0030] like Figure 2 As shown, a shock absorber 14 located on the inner circumference of the spring 12 is assembled between the base 13 and the bottom ring 11, and there are three sets of shock absorbers 14.

[0031] When in use, the shock absorber 14 between the bottom ring 11 and the base 13 can provide a certain degree of suppression, so that the body 1 can vibrate stably without tipping over due to excessive vibration force. At the same time, when the vibration motor 9 stops operating, the body 1 can also slowly stop vibrating.

[0032] like Figure 1 and Figure 2 As shown, a corrugated rubber sleeve 18 for protection is fitted between the base 13 and the bottom ring 11, and a sponge pad 15 is fitted on the inner side and the bottom surface of the base 13.

[0033] When in use, the corrugated rubber sleeve 18 protects the space between the bottom ring 11 and the base 13, allowing the structure between the two to operate more stably. The sponge pad 15 on the outer periphery of the base 13 provides a certain degree of cushioning and protection, allowing the base 13 to support the bottom ring 11 more stably.

[0034] like Figure 2 As shown, the bottom surface of the body 1 has an integrally constructed support rod 17, and there are multiple sets of support rods 17. The bottom ring 11 is equipped with a sliding sleeve 16 that is inserted and connected to the support rod 17, and there are multiple sets of sliding sleeves 16.

[0035] During use, the insertion rod 17 and the sliding sleeve 16 are interlocked, which facilitates the improvement of the stability of the connection between the machine body 1 and the bottom ring 11 and reduces the misalignment that may occur after the connection, so that the machine body 1 can stably grind the raw materials.

[0036] The working principle and usage process of this utility model are as follows: In use, the corresponding structural components are first installed in suitable positions. During the use of the grinding equipment for concrete expansion agent, the raw material can be easily poured into the machine body 1. Then, under the operation of the drive mechanism, the vertical shaft 2 inside the machine body 1 rotates. The vertical shaft 2 drives the grinding block 3 to cooperate with the grinding seat 4 inside the machine body 1 for grinding the raw material. The rotation of the vertical shaft 2 also drives the spiral blade 5 to rotate, allowing the raw material sliding off the surface of the grinding seat 4 to slide more stably between the grinding block 3 and the grinding seat 4 under the spiral conveyor, facilitating grinding and reducing the accumulation and blockage of raw material at the opening of the grinding seat 4. Simultaneously, during grinding, the vibration motor 9 on the bottom frame 8 of the machine body 1 operates and generates significant vibration, causing the machine body 1 to vibrate accordingly. This allows the raw material inside the machine body 1 to move during and after grinding, thereby improving the grinding efficiency and further reducing the accumulation of material inside the machine body 1.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grinding device for producing concrete expansion agent, characterized in that, The machine includes a body (1), in which a vertical shaft (2) for transmission is rotatably installed, and a grinding block (3) for grinding concrete expansion agent is assembled at one end of the vertical shaft (2) inside the machine body (1). A grinding seat (4) adapted to the grinding block (3) is assembled inside the machine body (1), and a spiral blade (5) for guiding material is assembled on the outer periphery of the vertical shaft (2). There are multiple sets of spiral blades (5), and a retaining ring (6) located at the top of the spiral blade (5) is assembled on the outer periphery of the vertical shaft (2). The bottom surface of the machine body (1) is fitted with a support plate (7), and a frame (8) is fitted at the end of the plate (7) away from the machine body (1). A vibration motor (9) is fitted inside the frame (8), and a counterweight (10) is fitted at the end of the frame (8) away from the plate (7).

2. The grinding device for producing concrete expansion agent according to claim 1, characterized in that, The bottom surface of the body (1) is bolted with a bottom ring (11) for auxiliary support, and a spring (12) for buffering is mounted on the end of the bottom ring (11) away from the body (1). There are multiple sets of springs (12), and a base (13) for support is mounted on the end of the spring (12) away from the bottom ring (11).

3. The grinding device for producing concrete expansion agent according to claim 2, characterized in that, A shock absorber (14) located on the inner circumference of the spring (12) is assembled between the base (13) and the bottom ring (11), and there are three sets of shock absorbers (14).

4. A grinding device for producing concrete expansion agent according to claim 2, characterized in that, A corrugated rubber sleeve (18) for protection is fitted between the base (13) and the bottom ring (11), and a sponge pad (15) is fitted on the inner side and the bottom surface of the base (13).

5. A grinding device for producing concrete expansion agent according to claim 2, characterized in that, The bottom surface of the body (1) is integrally constructed with a support rod (17), and there are multiple sets of support rods (17). The bottom ring (11) is equipped with a sliding sleeve (16) that is inserted and connected to the support rod (17), and there are multiple sets of sliding sleeves (16).

Citation Information

Patent Citations

  • Concrete expansive agent production raw material grinding mechanism

    CN213792081U