Concrete grinding device for concrete production

Abstract

The utility model belongs to the field of grinding devices, and particularly relates to a concrete grinding device for concrete production, which comprises a machine shell, a grinding concave seat is fixedly connected to the middle of the inner side of the machine shell, a plurality of supports are welded to the top of the machine shell, and a supporting plate is fixedly connected among the supports. A motor is fixedly installed at the upper end of the supporting plate, and an output shaft of the motor penetrates through the supporting plate and is connected with the supporting plate through a bearing. The grinding concave seat is arranged in the machine shell, then the grinding convex seat driven by the motor is arranged, the grinding convex seat is matched with the grinding concave seat, primary grinding can be carried out on aggregate of concrete, in addition, the sieve plate is arranged on the inner side of the machine shell, and then the grinding roller is fixed to the bottom of the grinding convex seat through the connecting shaft. And the grinding roller can roll on the sieve plate, so that secondary grinding is carried out on the aggregate, and the grinding effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of grinding devices, in particular to a concrete grinding device for concrete production. Background Art

[0002] During the concrete production process, aggregates of varying sizes are typically ground and pulverized using a grinding device. For example, the utility model patent with authorization announcement number CN220126366U proposes a concrete admixture grinding and processing device, belonging to the technical field of processing equipment. The device comprises a housing, a grinding mechanism, a mobile feeding mechanism, a recovery mechanism, and a screening mechanism. The housing has a discharge pipe at the bottom end, a grinding mechanism at the upper end, a screening mechanism on the inner wall, a baffle at the outer edge of the upper end, and a mobile feeding mechanism at the top end.

[0003] However, the existing grinding device only performs a single grinding through the interaction between the grinding rollers, and the grinding effect is limited. Therefore, it is necessary to improve it. Utility Model Content

[0004] The purpose of the utility model is to provide a concrete grinding device for concrete production, which solves the problem that the existing grinding device only performs single grinding through the interaction between various grinding rollers and has limited grinding effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete grinding device for concrete production, comprising a casing, a grinding recess fixedly connected to the middle inner side of the casing, a plurality of brackets welded to the top of the casing, and a support plate fixedly connected between the plurality of brackets, an electric motor fixedly mounted on the upper end of the support plate, an output shaft of the electric motor passes through the support plate and is connected to the support plate by a bearing, an end of the output shaft is fixedly connected to a rotating shaft, a grinding boss fixedly connected to the bottom of the rotating shaft, the grinding boss contacts the grinding recess, a connecting shaft is fixedly connected to the bottom of the grinding boss, a grinding roller is provided on the lower section of the shaft body of the connecting shaft, a sieve plate is slidably connected to the lower inner side of the casing, and the sieve plate contacts the grinding roller, a protrusion is fixedly connected to the left side of the upper end of the sieve plate.

[0006] Preferably, a discharge hopper is fixedly connected to the middle of the lower end of the sieve plate, and the discharge hopper is made of stainless steel. The setting of the discharge hopper facilitates material discharge.

[0007] Preferably, a guide cover is fixedly connected to the middle section of the shaft, and the guide cover is conical. The arrangement of the guide cover can prevent aggregate from accumulating on the grinding boss when it is put into the housing.

[0008] Preferably, a fixed block is fixedly connected to the inner side of the housing and below the sieve plate, the upper end of the fixed block is fixedly connected to a sleeve, the inner side of the sleeve is slidably connected to a slide bar, the slide bar is fixedly connected to the sieve plate, and a spring is provided inside the sleeve, one end of the spring is fixedly connected to the slide bar, and the other end of the spring is fixedly connected to the inner surface of the sleeve. The arrangement of the fixed block, sleeve, slide bar and spring provides elastic support for the sieve plate.

[0009] Preferably, a protective sleeve is fixedly connected between the fixed block and the sieve plate, and the protective sleeve is made of rubber. The setting of the protective sleeve has a protective effect on the spring.

[0010] Preferably, a support ring is fixedly connected to the outer side of the housing, and a support leg is fixedly connected to the bottom of the support ring. The arrangement of the support ring and the support leg provides support for the whole.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] 1. The utility model provides a grinding recess in the casing, and then provides a grinding convex seat driven by a motor. In this way, the grinding convex seat and the grinding recess cooperate with each other to perform primary grinding of concrete aggregate. In addition, a sieve plate is provided on the inner side of the casing, and then the bottom of the grinding convex seat is fixed with a connecting shaft to fix the grinding roller. The grinding roller can roll on the sieve plate, thereby performing secondary grinding of the aggregate, thereby improving the grinding effect.

[0013] 2. The utility model arranges a convex block on the sieve plate, and then arranges an elastic support assembly composed of a fixed block, a sleeve, a slide rod and a spring under the sieve plate. In this way, through the interaction between the grinding roller and the convex block, combined with the elastic support assembly, the sieve plate can be vibrated, thereby preventing the sieve plate from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 Front cross-sectional view of

[0016] Figure 3 For the utility model Figure 2 A magnified view of the structure of part A;

[0017] Figure 4 For the utility model Figure 2 A three-dimensional diagram of the local structure.

[0018] In the figure: 1. Casing; 2. Grinding recess; 3. Bracket; 4. Support plate; 5. Motor; 6. Rotating shaft; 7. Grinding boss; 8. Connecting shaft; 9. Grinding roller; 10. Air guide cover; 11. Fixed block; 12. Sleeve; 13. Slide rod; 14. Spring; 15. Screen plate; 16. Protective cover; 17. Discharge hopper; 18. Boss; 19. Support ring; 20. Support leg. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 、 Figure 2 A concrete grinding device for concrete production includes a housing 1, a grinding recess 2 fixedly connected to the middle portion of the inner side of the housing 1, a plurality of brackets 3 welded to the top of the housing 1, and a support plate 4 fixedly connected between the brackets 3. A motor 5 is fixedly mounted on the upper end of the support plate 4. The output shaft of the motor 5 passes through the support plate 4 and is connected to the support plate 4 via a bearing. The end of the output shaft is fixedly connected to a rotating shaft 6, and a conical air deflector 10 is fixedly connected to the middle section of the rotating shaft 6. The provision of the air deflector 10 can prevent aggregate from accumulating on the grinding protrusion 7 when it is fed into the housing 1.

[0021] See also Figure 2 、 Figure 4 The bottom of the rotating shaft 6 is fixedly connected to a grinding boss 7, which contacts the grinding recess 2. The bottom of the grinding boss 7 is fixedly connected to a connecting shaft 8, and the lower section of the connecting shaft 8 is provided with a grinding roller 9. A sieve plate 15 is slidably connected to the lower inner portion of the housing 1, and the sieve plate 15 contacts the grinding roller 9. A discharge hopper 17 is fixedly connected to the middle of the lower end of the sieve plate 15. The discharge hopper 17 is made of stainless steel. The setting of the discharge hopper 17 facilitates unloading. A protrusion 18 is fixedly connected to the left side of the upper end of the sieve plate 15.

[0022] See also Figure 2 、 Figure 3A fixed block 11 is fixedly connected to the inside of the casing 1, below the sieve plate 15. A sleeve 12 is fixedly connected to the top of the fixed block 11. A slide bar 13 is slidably connected to the inside of the sleeve 12. The slide bar 13 is fixedly connected to the sieve plate 15. A spring 14 is provided inside the sleeve 12. One end of the spring 14 is fixedly connected to the slide bar 13, and the other end of the spring 14 is fixedly connected to the inner surface of the sleeve 12. The arrangement of the fixed block 11, sleeve 12, slide bar 13, and spring 14 provides elastic support for the sieve plate 15. A protective sleeve 16 made of rubber is fixedly connected between the fixed block 11 and the sieve plate 15. This provides protection for the spring 14. A support ring 19 is fixedly connected to the outside of the casing 1. Support legs 20 are fixedly connected to the bottom of the support ring 19. The arrangement of the support ring 19 and support legs 20 provides support for the entire casing.

[0023] The specific implementation process of the present utility model is as follows: when in use, first start the motor 5, the motor 5 drives the grinding boss 7 to rotate through the rotating shaft 6, and at the same time the grinding boss 7 drives the grinding roller 9 to rotate through the connecting shaft 8, and then the aggregate for concrete production is put into the casing 1, and the aggregate slides into the grinding recess 2 under the guidance of the air guide cover 10, and then slides along the grinding recess 2. During the sliding process, it will be ground for the first time by the grinding boss 7, and then the aggregate falls on the screen plate 15 and is ground for the second time by the grinding roller 9. In the process of rotation of the grinding roller 9, it will collide with the convex block 18, thereby causing the screen plate 15 to move downward, and the screen plate 15 will be reset under the elastic force of the spring 14, so that the screen plate 15 will vibrate, thereby preventing the screen plate 15 from being blocked.

[0024] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete grinding device for concrete production, comprising a housing (1), characterized in that: A grinding recess (2) is fixedly connected to the middle of the inner side of the casing (1), a plurality of brackets (3) are welded to the top of the casing (1), and a support plate (4) is fixedly connected between the plurality of brackets (3), an electric motor (5) is fixedly mounted on the upper end of the support plate (4), an output shaft of the electric motor (5) passes through the support plate (4) and is connected to the support plate (4) via a bearing, a rotating shaft (6) is fixedly connected to the end of the output shaft, a grinding convex seat (7) is fixedly connected to the bottom of the rotating shaft (6), the grinding convex seat (7) is in contact with the grinding recess (2), a connecting shaft (8) is fixedly connected to the bottom of the grinding convex seat (7), a grinding roller (9) is provided on the lower section of the shaft body of the connecting shaft (8), a sieve plate (15) is slidably connected to the lower inner side of the casing (1), and the sieve plate (15) is in contact with the grinding roller (9), and a convex block (18) is fixedly connected to the left side of the upper end of the sieve plate (15).

2. A concrete grinding device for concrete production according to claim 1, characterized in that: A discharge hopper (17) is fixedly connected to the middle portion of the lower end of the sieve plate (15), and the discharge hopper (17) is made of stainless steel.

3. The concrete grinding device for concrete production according to claim 1, characterized in that: The middle section of the shaft of the rotating shaft (6) is fixedly connected with a deflector (10), and the deflector (10) is conical.

4. The concrete grinding device for concrete production according to claim 1, characterized in that: A fixed block (11) is fixedly connected to the inner side of the casing (1) and below the sieve plate (15); a sleeve (12) is fixedly connected to the upper end of the fixed block (11); a slide rod (13) is slidably connected to the inner side of the sleeve (12); the slide rod (13) is fixedly connected to the sieve plate (15); a spring (14) is provided on the inner side of the sleeve (12); one end of the spring (14) is fixedly connected to the slide rod (13), and the other end of the spring (14) is fixedly connected to the inner surface of the sleeve (12).

5. A concrete grinding device for concrete production according to claim 4, characterized in that: A protective sleeve (16) is fixedly connected between the fixed block (11) and the sieve plate (15), and the protective sleeve (16) is made of rubber.

6. The concrete grinding device for concrete production according to claim 1, characterized in that: A support ring (19) is fixedly connected to the outer side of the housing (1), and a support leg (20) is fixedly connected to the bottom of the support ring (19).

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