Material crusher for concrete processing

Abstract

The utility model discloses a material crusher for concrete processing, which relates to the technical field of concrete processing and comprises two supporting seats symmetrically welded on the outer wall of the top of a bearing base, a double-roller crushing mechanism, a vibrating screening mechanism and a feeding speed adjusting mechanism, the opposite sides of the two supporting seats are jointly welded to the same double-opening type crushing bin, and the outer wall of the top of the double-opening type crushing bin is fixedly connected with a feeding hopper through bolts. The double-roller type crushing mechanism comprises two crushing rollers, two transmission gears, a fixed cover, a variable-speed motor fixedly mounted on the outer wall of the front side of the fixed cover, and a driving gear fixedly mounted on an output shaft of the variable-speed motor in a sleeving manner. The vibrating screening mechanism is arranged, so that crushed materials can be effectively screened, and the problems that the sizes of the materials crushed by a traditional crusher are different, and the quality of concrete can be directly influenced when the crushed materials which are not fully screened are directly used are solved.

Description

Technical Field

[0001] This utility model relates to the field of concrete processing technology, and in particular to a material crusher for concrete processing. Background Technology

[0002] In the concrete processing process, some aggregate raw materials need to be crushed, thus requiring the use of a material crusher. A search revealed that patent application number 202322943678.0 discloses a crusher for concrete processing, which includes a crushing mechanism for crushing concrete; and a dust removal mechanism, which includes a fan, a collection box, and an air duct. The collection box is fixedly connected to the outside of the right side wall of the housing, and the fan draws air containing dust from inside the housing into the collection box through the air duct.

[0003] While existing crushers can collect dust inside the casing, preventing excessive dust accumulation from damaging the equipment and avoiding dust spillage from harming the health of workers, they lack effective screening capabilities. This results in materials of varying sizes after crushing. Directly using insufficiently screened crushed materials can affect the quality of concrete, potentially leading to uneven concrete strength and cracking. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a material crusher for concrete processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A material crusher for concrete processing includes two support seats symmetrically welded to the top outer wall of a load-bearing base. The two support seats are welded to the same double-opening crushing chamber on opposite sides. The top outer wall of the double-opening crushing chamber is fixedly connected to a feed hopper by bolts. The crusher also includes a roller crushing mechanism, a vibrating screening mechanism, and a feed speed adjustment mechanism.

[0007] The roller crushing mechanism includes two crushing rollers rotatably installed in a double-opening crushing chamber, two transmission gears sequentially fixedly mounted on one end of the two crushing rollers, a fixed cover fixedly connected to the front outer wall of the double-opening crushing chamber, a variable speed motor fixedly installed on the front outer wall of the fixed cover, and a drive gear fixedly mounted on the output shaft of the variable speed motor.

[0008] The vibrating screening mechanism includes a screening frame located below the double-opening crushing chamber, a vibrating motor fixedly installed on the side wall of the screening frame, and a screen fixedly connected inside the screening frame.

[0009] The feeding speed adjustment mechanism includes two shafts rotatably installed inside the feeding hopper, two guide plates symmetrically fixed on the two shafts, a support frame welded to the front outer wall of the feeding hopper, a transmission shaft rotatably installed on the support frame, two worm gears sequentially fixedly mounted on the transmission shaft, and two worm wheels sequentially fixedly mounted on one end of the two shafts.

[0010] Preferably, the two crushing rollers are arranged alternately, the output shaft of the variable speed motor passes through the fixed cover, the two transmission gears mesh with each other, and the drive gear meshes with an adjacent transmission gear.

[0011] Preferably, a frequency converter is fixedly installed on the front outer wall of the fixed cover, and the variable speed motor is electrically connected to the frequency converter.

[0012] Preferably, the screening frame is fixedly connected to the load-bearing base by four spring supports, and the four spring supports are respectively located at the four corners of the screening frame.

[0013] Preferably, a discharge port is provided at the rear of the screening frame, a guide frame adapted to the discharge port is welded to the outer rear wall of the screening frame, and a receiving box located directly below the screening frame is placed on the top of the load-bearing base.

[0014] Preferably, the two worms mesh with two worm wheels respectively, and the helices of the two worms are in opposite directions.

[0015] Preferably, a handwheel is fixedly connected to the outer wall of one end of the drive shaft.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. In the crushing process, the speed of the variable speed motor can be flexibly adjusted by the frequency converter, which in turn can adjust the speed of the two crushing rollers, so as to flexibly adjust the crushing speed to meet the crushing requirements of different materials.

[0018] 2. This utility model is equipped with a vibrating screening mechanism, which facilitates the effective screening of the crushed material, thereby solving the problem that the material crushed by traditional crushers is of inconsistent size, and directly using these insufficiently screened crushed materials will directly affect the quality of concrete.

[0019] 3. This utility model is equipped with a feeding speed adjustment mechanism. By simply rotating the external handwheel, the opening angle of the two guide plates can be flexibly adjusted, which further facilitates the flexible adjustment of the feeding speed. This avoids the situation where material accumulates and jams on the surface of the two crushing rollers due to excessive feeding speed, and helps to improve the material crushing efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0021] Figure 2 This is a three-dimensional exploded view of the roller crushing mechanism in this utility model;

[0022] Figure 3 This is a three-dimensional enlarged structural diagram of the vibrating screening mechanism in this utility model;

[0023] Figure 4 This is a three-dimensional enlarged structural diagram of the feed speed adjustment mechanism in this utility model;

[0024] Figure 5 This is a three-dimensional enlarged structural diagram of the two worm gears and two worm wheels in the meshing state of this utility model.

[0025] In the diagram: 1. Load-bearing base; 2. Support seat; 3. Double-opening crushing chamber; 4. Feed hopper; 5. Crushing roller; 6. Transmission gear; 7. Fixed cover; 8. Variable speed motor; 9. Drive gear; 10. Screening frame; 11. Vibrating motor; 12. Screen; 13. Spring support; 14. Guide frame; 15. Receiving box; 16. Shaft; 17. Guide plate; 18. Support frame; 19. Transmission shaft; 20. Worm gear; 21. Worm wheel; 22. Handwheel; 23. Frequency converter. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1, referring to Figure 1-3 A material crusher for concrete processing includes two support seats 2 symmetrically welded to the top outer wall of a load-bearing base 1, a roller crushing mechanism, and a vibrating screening mechanism.

[0028] In this embodiment, the two support bases 2 are welded together on opposite sides with the same double-opening crushing chamber 3, and the top outer wall of the double-opening crushing chamber 3 is fixedly connected to the feed hopper 4 by bolts;

[0029] In this embodiment, the roller crushing mechanism includes two crushing rollers 5 rotatably installed in the double-opening crushing chamber 3, two transmission gears 6 sequentially fixedly mounted on one end of the two crushing rollers 5, a fixed cover 7 fixedly connected to the front outer wall of the double-opening crushing chamber 3, a variable speed motor 8 fixedly installed on the front outer wall of the fixed cover 7, and a drive gear 9 fixedly mounted on the output shaft of the variable speed motor 8.

[0030] Furthermore, the two crushing rollers 5 are arranged in an alternating manner, the output shaft of the variable speed motor 8 passes through the fixed cover 7, the two transmission gears 6 mesh with each other, and the drive gear 9 meshes with an adjacent transmission gear 6;

[0031] Furthermore, a frequency converter 23 is fixedly installed on the front outer wall of the fixed cover 7. The variable speed motor 8 is electrically connected to the frequency converter 23. The speed of the variable speed motor 8 can be flexibly adjusted through the frequency converter 23, which in turn can adjust the speed of the two crushing rollers 5, thereby facilitating flexible adjustment of the crushing speed to meet the crushing requirements of different materials.

[0032] In this embodiment, the vibrating screening mechanism includes a screening frame 10 located below the double-opening crushing chamber 3, a vibrating motor 11 fixedly installed on the side wall of the screening frame 10, and a screen 12 fixedly connected inside the screening frame 10.

[0033] Furthermore, the screening frame 10 is fixedly connected to the load-bearing base 1 by four spring supports 13, and the four spring supports 13 are respectively located at the four corners of the screening frame 10.

[0034] Furthermore, a discharge port is provided at the rear of the screening frame 10, and a guide frame 14 adapted to the discharge port is welded to the outer wall of the rear of the screening frame 10. A receiving box 15 located directly below the screening frame 10 is placed on the top of the load-bearing base 1.

[0035] The working principle of this embodiment is as follows: First, the drive gear 9 is rotated by the variable speed motor 8. Then, a transmission gear 6 adjacent to the drive gear 9 will rotate. Subsequently, the rotation of this transmission gear 6 will drive another transmission gear 6 to rotate in the opposite direction. In turn, the two transmission gears 6 will drive the two crushing rollers 5 to rotate relative to each other. Thus, the crushing pressure generated by the relative rotation of the two staggered crushing rollers 5 will fully crush the material entering between the two crushing rollers 5. Second, the crushed material will fall from the bottom of the double-opening crushing chamber 3 into the screening frame 10, and then be supported by the vibration motor 11 and four springs. With the cooperation of the device 13, the material entering the screening frame 10 will be vibrated. At this time, the qualified crushed material will gradually be discharged from the screen holes of the screen 12 and collected in the receiving box 15. The unqualified crushed material will gradually be discharged from the discharge port and discharged through the guide plate 17. The worker can pour the unqualified crushed raw material back into the crusher for repeated crushing until it is qualified. This facilitates the effective screening of the crushed material and solves the problem that the material crushed by the traditional crusher is of different sizes and directly using the crushed material that has not been fully screened will directly affect the quality of concrete.

[0036] Example 2, refer to Figure 4-5This embodiment is an optimization based on embodiment 1. Specifically, it is a material crusher for concrete processing, which also includes a feeding speed adjustment mechanism. The feeding speed adjustment mechanism includes two shafts 16 rotatably installed in the feeding hopper 4, two guide plates 17 symmetrically fixed on the two shafts 16, a support frame 18 welded to the front outer wall of the feeding hopper 4, a transmission shaft 19 rotatably installed on the support frame 18, two worm gears 20 sequentially fixed and mounted on the transmission shaft 19, and two worm wheels 21 sequentially fixed and mounted on one end of the two shafts 16.

[0037] Furthermore, the two worms 20 mesh with the two worm wheels 21 respectively, and the helices of the two worms 20 are opposite in direction. A handwheel 22 is fixedly connected to the outer wall of one end of the transmission shaft 19.

[0038] The working principle of this embodiment is as follows: The transmission shaft 19 is driven to rotate by the handwheel 22. Subsequently, the transmission shaft 19 drives two worm gears 20 with opposite helical directions to rotate. Then, the two worm wheels 21 meshing with the two worm gears 20 rotate in opposite directions. Subsequently, the two worm wheels 21 drive the two guide plates 17 on the two shafts 16 to rotate in opposite directions. Thus, by rotating the external handwheel 22, the opening angle of the two guide plates 17 can be flexibly adjusted, which further facilitates the flexible adjustment of the feeding speed. This avoids the situation where material accumulates and jams on the surface of the two crushing rollers 5 due to excessive feeding speed, which is beneficial to improving the material crushing efficiency.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A material crusher for concrete processing, comprising two support seats (2) symmetrically welded to the top outer wall of a load-bearing base (1), wherein the two support seats (2) are welded together on opposite sides to a common double-opening crushing chamber (3), and a feed hopper (4) is bolted to the top outer wall of the double-opening crushing chamber (3), characterized in that, It also includes a roller crushing mechanism, a vibrating screening mechanism, and a feed speed adjustment mechanism; The roller crushing mechanism includes two crushing rollers (5) rotatably installed in the double-opening crushing chamber (3), two transmission gears (6) fixedly mounted on one end of the two crushing rollers (5), a fixed cover (7) fixedly connected to the front outer wall of the double-opening crushing chamber (3), a variable speed motor (8) fixedly installed on the front outer wall of the fixed cover (7), and a drive gear (9) fixedly mounted on the output shaft of the variable speed motor (8). The vibrating screening mechanism includes a screening frame (10) located below the double-opening crushing chamber (3), a vibrating motor (11) fixedly installed on the side wall of the screening frame (10), and a screen (12) fixedly connected inside the screening frame (10). The feeding speed adjustment mechanism includes two shafts (16) rotatably mounted inside the feeding hopper (4), two guide plates (17) symmetrically fixed on the two shafts (16), a support frame (18) welded to the front outer wall of the feeding hopper (4), a transmission shaft (19) rotatably mounted on the support frame (18), two worm gears (20) sequentially fixed on the transmission shaft (19), and two worm wheels (21) sequentially fixed on one end of the two shafts (16).

2. The material crusher for concrete processing according to claim 1, characterized in that, The two crushing rollers (5) are arranged in an alternating manner, the output shaft of the variable speed motor (8) passes through the fixed cover (7), the two transmission gears (6) mesh with each other, and the drive gear (9) meshes with an adjacent transmission gear (6).

3. A material crusher for concrete processing according to claim 1, characterized in that, A frequency converter (23) is fixedly installed on the front outer wall of the fixed cover (7), and the variable speed motor (8) is electrically connected to the frequency converter (23).

4. A material crusher for concrete processing according to claim 1, characterized in that, The screening frame (10) is fixedly connected to the load-bearing base (1) by four spring supports (13), and the four spring supports (13) are located at the four corners of the screening frame (10).

5. A material crusher for concrete processing according to claim 1, characterized in that, The screening frame (10) has a discharge port at the rear. A guide frame (14) adapted to the discharge port is welded to the outer wall of the rear of the screening frame (10). A receiving box (15) located directly below the screening frame (10) is placed on the top of the load-bearing base (1).

6. A material crusher for concrete processing according to claim 1, characterized in that, The two worms (20) mesh with the two worm wheels (21) respectively, and the helices of the two worms (20) are opposite in direction.

7. A material crusher for concrete processing according to claim 1, characterized in that, A handwheel (22) is fixedly connected to the outer wall of one end of the drive shaft (19).

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