A concrete pulverizing device
By combining the preliminary crushing component and the hammer block component, the problem of uneven crushing of sand and gravel was solved, ensuring that the particle size of the concrete met the requirements and improving the strength of the concrete.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG TENGYU CONCRETE CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-02
AI Technical Summary
In the concrete production process, uneven crushing of sand and gravel can lead to unsuitable particle size, which affects the strength of the concrete.
The concrete is initially crushed using a preliminary crushing component, large particles are screened out by a vibrating screen component, and then a hammer block component is used for secondary crushing to ensure that the particle size of the sand and gravel meets the requirements.
This effectively avoids situations where the aggregate is too large or too small, thus ensuring the strength of the concrete.
Smart Images
Figure CN224308491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete crushing technology, specifically to a concrete crushing device. Background Technology
[0002] Concrete is a building material made by mixing, stirring, molding, and curing water, aggregates (such as sand and gravel), and cementitious materials in a certain proportion. Concrete has excellent compressive strength, durability, and plasticity, and is widely used in structural engineering such as buildings, roads, bridges, tunnels, and water conservancy projects. During the construction process, it is necessary to strictly control the mix proportion, mixing, transportation, pouring, and curing of concrete to ensure its quality and performance.
[0003] In the process of producing concrete, sand and gravel usually need to be crushed to facilitate the use of concrete. However, during the crushing process, sand and gravel may become too large or too small. When the volume of sand and gravel is not suitable, it can affect the strength of the concrete and thus its use. Utility Model Content
[0004] The purpose of this invention is to provide a concrete crushing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a concrete crushing device, comprising:
[0006] Grinding box;
[0007] A preliminary crushing component is located at the feed end of the crushing chamber;
[0008] The vibrating screen assembly is inclinedly disposed inside the crushing box and located below the primary crushing assembly;
[0009] An arc-shaped shell is disposed on the inner wall of the crushing box and located at the discharge end of the vibrating screen assembly;
[0010] Several through holes are provided and are evenly distributed on the arc-shaped surface of the arc-shaped shell;
[0011] The hammer block assembly, located inside the arc-shaped shell, is used for secondary crushing of the screened large-particle raw materials.
[0012] The linkage component is located on the rotating shaft end of the hammer block assembly and is used to drive the vibrating screen assembly to vibrate and screen.
[0013] Preferably, the preliminary crushing assembly includes two crushing rollers rotatably mounted on the feed end of the crushing box, the shaft ends of the two crushing rollers are provided with gears that mesh with each other, and the crushing box is provided with a first drive motor that drives one side of the crushing roller to rotate.
[0014] Preferably, the vibrating screen assembly includes a U-shaped groove disposed on the inner wall of the crushing chamber, a screen body disposed on the inner side of the U-shaped groove, a plurality of guide rods penetrating the screen body disposed on the inner side of the U-shaped groove, and springs disposed between the upper and lower ends of the screen body and the inner wall of the U-shaped groove.
[0015] Preferably, the hammer assembly includes a rotating rod rotatably mounted between the inner walls of the crushing chamber and penetrating the arc-shaped shell. A second drive motor for driving the rotating rod to rotate is provided on the side wall of the crushing chamber. A mounting seat is provided on the side wall of the rotating rod and located inside the arc-shaped shell. A plurality of evenly distributed crushing hammers are provided on the side wall of the mounting seat.
[0016] Preferably, the linkage component includes an abutment block disposed on the vibrating screen assembly, and an eccentric wheel is provided on the side wall of the rotating rod that can abut against the abutment block.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: When using the concrete crushing device of this utility model, the concrete is initially crushed by the preliminary crushing component and then screened by the vibrating screen component. The large particles of raw materials screened out are then crushed by the hammer block component, which avoids the situation that the sand and gravel are too large or too small, ensures the particle size of the sand and gravel, and avoids affecting the strength of the concrete. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the left cross-sectional structure of the preliminary crushing component of this utility model;
[0020] Figure 3 This is a schematic diagram of the left cross-sectional structure of the hammer block assembly of this utility model.
[0021] In the diagram: 1. Crushing box; 2. Preliminary crushing assembly; 21. Crushing roller; 22. Gear; 23. First drive motor; 3. Vibrating screen assembly; 31. U-shaped groove; 32. Screen body; 33. Guide rod; 34. Spring; 4. Arc-shaped shell; 5. Through hole; 6. Hammer assembly; 61. Rotating rod; 62. Second drive motor; 63. Mounting base; 64. Crusher hammer; 7. Linkage assembly; 71. Contact block; 72. Eccentric wheel. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-3 This utility model provides a technical solution: a concrete crushing device, including a crushing box 1; a preliminary crushing component 2 disposed at the feed end of the crushing box 1, used to initially crush the incoming concrete raw materials and reduce particle size; a vibrating screen component 3 inclinedly disposed inside the crushing box 1 and located below the preliminary crushing component 2, used to screen the pre-crushed material and separate fine particles that meet the requirements from coarse particles that require secondary crushing; an arc-shaped shell 4 disposed on the inner wall of the crushing box 1 and located at the discharge end of the vibrating screen component 3; several through holes 5 are provided and evenly distributed on the arc-shaped surface of the arc-shaped shell 4; a hammer block component 6 is disposed on the inner side of the arc-shaped shell 4 for... The large particles selected are subjected to secondary crushing, and the coarse particles selected are subjected to secondary crushing to ensure that the final particle size meets the standard. The linkage component 7 is set on the rotating shaft end of the hammer block component 6 and is used to drive the vibrating screen component 3 to vibrate and screen. Through mechanical linkage, the operation of the vibrating screen component 3 and the hammer block component 6 are controlled synchronously. In use, the concrete is initially crushed by the primary crushing component and then screened by the vibrating screen component. Fine particles are discharged through the through holes, and coarse particles fall into the arc-shaped shell. The large particles selected are subjected to secondary crushing by the hammer block component to avoid the sand and gravel being too large or too small, thus ensuring the particle size of the sand and gravel and avoiding affecting the strength of the concrete.
[0024] Specifically, the preliminary crushing component 2 includes two crushing rollers 21 that are rotatably mounted on the feed end of the crushing box 1. The shaft ends of the two crushing rollers 21 are provided with gears 22 that mesh with each other. The crushing box 1 is provided with a first drive motor 23 that drives one side of the crushing roller 21 to rotate. In actual use, by starting the first drive motor 23, one side of the crushing roller 21 and the gear 22 on the same side are driven to rotate. The gear 22 drives the gear 22 on the other side and the crushing roller 21 on the other side to rotate relative to each other, so that the two crushing rollers 21 rotate in opposite directions, forming a shearing force, tearing large pieces of concrete raw materials into smaller particles, and realizing the preliminary crushing of concrete raw materials.
[0025] Specifically, the vibrating screen assembly 3 includes a U-shaped groove 31 set on the inner wall of the crushing box 1. A screen body 32 is provided on the inner side of the U-shaped groove 31. Several guide rods 33 penetrating the screen body 32 are provided on the inner side of the U-shaped groove 31. The guide rods 33 ensure the stability of the screen body's movement trajectory. Springs 34 are provided between the upper and lower ends of the screen body 32 and the inner wall of the U-shaped groove 31. The springs 34 are located on the outer side of the guide rods 33. The concrete raw material after preliminary crushing falls onto the screen body 32 through the feed end. The linkage assembly 7 drives the screen body 32 to vibrate. The material is subjected to high-frequency impact and friction on the screen body 32. Fine particles are finally discharged through the holes of the screen body 32; coarse particles remain on the screen surface and move to the discharge end with the screen body 32.
[0026] Specifically, the hammer assembly 6 includes a rotating rod 61 rotatably mounted between the inner walls of the crushing chamber 1 and penetrating the arc-shaped housing 4. A second drive motor 62 is provided on the side wall of the crushing chamber 1 to drive the rotating rod 61 to rotate. A mounting seat 63 is provided on the side wall of the rotating rod 61 and located inside the arc-shaped housing 4. Several evenly distributed crushing hammers 64 are provided on the side wall of the mounting seat 63. The crushing hammers 64 are hinged to the mounting seat 63. In use, by starting the second drive motor 62, the rotating rod 61, the mounting seat 63 and the crushing hammers 64 are driven to rotate, so that large particles of raw material falling into the arc-shaped housing 4 can be quickly crushed by the high-speed rotating crushing hammers 64, which significantly improves the crushing efficiency and enables the large particles of raw material to be discharged through several through holes 5.
[0027] Specifically, the linkage component 7 includes an abutment block 71 disposed on the vibrating screen component 3, and an eccentric wheel 72 disposed on the side wall of the rotating rod 61 that can abut against the abutment block 71. During the rotation of the rotating rod 61, the eccentric wheel 72 is driven to rotate, causing the abutment block 71 to reciprocate under the push of the eccentric wheel 72. Vibration energy is transmitted to the screen body 32 through the guide rod 33 of the U-shaped groove 31 and the spring 34.
[0028] Working Principle: During operation, concrete raw materials enter the crushing box 1 through the feed end and fall between the two crushing rollers 21 of the preliminary crushing assembly 2. The first drive motor 23 drives the rotation, causing the relative rotation of the two crushing rollers 31 to generate shearing force, initially crushing large pieces of raw material into smaller particles. The pre-crushed material enters the screen body 32 of the vibrating screen assembly 3. The screen body 32 achieves periodic vibration through the guide rod 33 of the U-shaped groove 31 and the spring 34. Under the vibration, fine particles are discharged through the screen holes, while coarse particles remain on the screen surface. The screened coarse particles fall into the arc-shaped shell 4, where the second drive motor 62 drives the rotating rod 61 to rotate. The crushing hammer 64 mounted on the rotating rod 61 impacts, shears, and squeezes the coarse particles through high-speed rotation, further crushing them into fine particles.
[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A concrete crushing device, characterized in that, include: Crushing box (1); A preliminary crushing component (2) is disposed at the feed end of the crushing box (1); The vibrating screen assembly (3) is inclinedly arranged inside the crushing box (1) and located below the preliminary crushing assembly (2); An arc-shaped shell (4) is disposed on the inner wall of the crushing box (1) and located at the discharge end of the vibrating screen assembly (3); Several through holes (5) are provided and are evenly distributed on the arc surface of the arc shell (4); Hammer assembly (6) is located inside the arc-shaped shell (4) and is used for secondary crushing of the screened large-particle raw materials; The linkage component (7) is located on the rotating shaft end of the hammer block assembly (6) and is used to drive the vibrating screen assembly (3) to vibrate and screen.
2. The concrete crushing device according to claim 1, characterized in that: The preliminary crushing assembly (2) includes two crushing rollers (21) that are rotatably mounted on the feed end of the crushing box (1). The shaft ends of the two crushing rollers (21) are provided with gears (22) that mesh with each other. The crushing box (1) is provided with a first drive motor (23) that drives one side of the crushing roller (21) to rotate.
3. The concrete crushing device according to claim 1, characterized in that: The vibrating screen assembly (3) includes a U-shaped groove (31) set on the inner wall of the crushing box (1). A screen body (32) is provided on the inner side of the U-shaped groove (31). A number of guide rods (33) penetrating the screen body (32) are provided on the inner side of the U-shaped groove (31). Springs (34) are provided between the upper and lower ends of the screen body (32) and the inner wall of the U-shaped groove (31).
4. A concrete crushing device according to claim 1, characterized in that: The hammer assembly (6) includes a rotating rod (61) that is rotatably installed between the inner walls of the crushing box (1) and passes through the arc-shaped shell (4). A second drive motor (62) for driving the rotating rod (61) to rotate is provided on the side wall of the crushing box (1). A mounting seat (63) is provided on the side wall of the rotating rod (61) and located on the inner side of the arc-shaped shell (4). A plurality of evenly distributed breaker hammers (64) are provided on the side wall of the mounting seat (63).
5. A concrete crushing device according to claim 4, characterized in that: The linkage assembly (7) includes an abutment block (71) disposed on the vibrating screen assembly (3), and an eccentric wheel (72) is provided on the side wall of the rotating rod (61) to abut against the abutment block (71).