Impact crusher for adjusting discharging gradation

Abstract

The utility model provides an impact crusher for adjusting the discharging gradation, which belongs to the technical field of crushers, and comprises: a base, the top surface of the base is fixedly connected with a crushing assembly through a support plate, and a screening assembly is arranged below the crushing assembly. The utility model arranges a screening assembly, and the second motor drives the cam to rotate, and the screening plate is periodically lifted. At the same time, the screening plate is reciprocated under the elastic force of the compression spring, so that the products that meet the requirements fall from the discharging hole, and the large-sized stones that do not meet the requirements flow out from the screening plate, thereby improving the product quality; at the same time, a return material assembly is arranged, and the large-sized stones on the screening plate fall into the return material barrel through the discharging port and the feeding port, and the second motor drives the dragon to rotate to lift the material, and finally the material falls from the return material barrel at the top of the return material barrel into the crushing box for secondary crushing, without adding additional production processes, thereby improving production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushers, and in particular relates to an impact crusher capable of adjusting the discharging gradation. Background Art

[0002] Impact crusher is a commonly used crushing equipment. Its working principle is to use high-speed rotating rotor and impact force to crush materials. After the materials enter the crushing chamber, they collide and crush with the rotating hammer head, and finally produce the required crushed particles. This crushing method is suitable for medium hardness and brittle materials, such as limestone, quartz stone, ore, etc., with the characteristics of high crushing efficiency and low energy consumption. Impact crusher is widely used in the crushing and fine crushing process in mining, construction, metallurgy and other industries.

[0003] According to the patent authorization announcement number CN219816455U, a crushing gap adjustment mechanism of an impact crusher is disclosed, including a crusher shell, a crushing hammer is arranged in the crusher shell, two impact plates are arranged in the crusher shell, one side of the two impact plates are fixedly connected to two side plates, a hinged rod is hingedly installed on the side plate, one end of the hinged rod is fixedly connected to the inner wall of the crusher shell, and an adjustment mechanism capable of adjusting the gap between the impact plate and the crushing hammer is arranged on the two impact plates; the adjustment mechanism includes two extension rods that slide through and are installed on the crusher shell.

[0004] The above prior art often has the following problems when used:

[0005] When the above device is used for crushing after adjusting the hammer speed and the impact plate angle, the product specifications obtained by crushing are still slightly different due to the different particle sizes of the raw materials. There may be large-sized stones that do not meet the requirements mixed in the product, affecting the product quality.

[0006] When large-size stones that do not meet the requirements appear, they need to be screened out manually or through a screening device and then transferred to a crushing box for secondary crushing, which increases the production process and reduces production efficiency. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides an impact crusher capable of adjusting the discharging gradation.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] An impact crusher for adjusting the discharging gradation, characterized in that it comprises: a base, a crushing assembly is fixedly connected to the top surface of the base through a support plate, a screening assembly is arranged below the crushing assembly, and a return assembly is fixedly connected to the top surface of the base through a tripod;

[0010] The crushing assembly includes a crushing box, a first motor is fixedly connected to the side wall of the crushing box, a crushing hammer is fixedly connected to the output end of the first motor, two impact plates are rotatably connected to the inner wall of the crushing box, two hydraulic rods are fixedly connected to the top surface and side wall of the crushing box, the two hydraulic rods respectively penetrate the top surface and side wall of the crushing box, and the output ends of the two hydraulic rods are respectively hinged to the top surfaces of the two impact plates, the crushing box is provided with an opening, and a feeding port is provided at the top of the crushing box.

[0011] Preferably, the screening assembly comprises a screening plate, and a supporting foot is fixedly connected to the top surface of the base, and the top surface of the supporting foot is connected to the bottom surface of the screening plate via a compression spring.

[0012] Preferably, the material return assembly includes a material return barrel, a second motor is fixedly connected to the bottom surface of the base, a dragon is fixedly connected to the output end of the second motor, and the dragon penetrates and is rotatably connected to the bottom surface of the material return barrel.

[0013] Preferably, the screen plate is designed to be inclined, and the screen plate is divided into two parts, an upper end and a lower end. The upper end of the screen plate is provided with a plurality of discharge holes in a rectangular array, and the lower end of the screen plate is arranged in a trapezoidal shape, and a discharge port is provided at the lower end of the screen plate.

[0014] Preferably, the end of the dragon close to the motor is fixedly connected to the first bevel gear, the two supporting feet close to the return barrel are fixedly connected to a cross bar, a rotating rod is rotatably connected to the side wall of the cross bar, the end of the rotating rod away from the cross bar is fixedly connected to the second bevel gear, the first bevel gear is meshed with the second bevel gear, and the end of the rotating rod close to the cross bar is fixedly connected to a cam.

[0015] Preferably, a feed port is provided at the bottom end of the side wall of the return barrel, and the feed port is communicated with the discharge port when the screening plate is lifted by the cam.

[0016] Preferably, a discharge cylinder is provided at the top of the return cylinder, and the return cylinder is connected to the crushing box through the discharge cylinder.

[0017] Preferably, an anti-skid pad is provided on the bottom surface of the base, and the anti-skid pad is made of rubber material.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The utility model provides a screening component, which drives the cam to rotate through the second motor to periodically lift the screening plate, and at the same time, the screening plate is reciprocated under the elastic force of the compression spring, so that products that meet the requirements fall from the discharge hole, and large-size stones that do not meet the requirements flow out from the screening plate, thereby improving product quality. At the same time, a return component is provided, and the large-size stones on the screening plate fall into the return barrel through the discharge port and the feed port. The second motor drives the dragon to rotate to lift the material, and finally the material falls from the return barrel at the top of the return barrel into the crushing box for secondary crushing, without adding additional production processes, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of an impact crusher for adjusting the discharging gradation proposed by the utility model;

[0021] Figure 2 for Figure 1 A magnified image of point A;

[0022] Figure 3 for Figure 1 A magnified view of point B;

[0023] Figure 4 The utility model is a schematic diagram of the left-side structural view of an impact crusher for adjusting the discharging gradation.

[0024] In the figure: 1 base, 2 support plate, 3 tripod, 4 crushing box, 5 first motor, 6 crushing hammer, 7 impact plate, 8 hydraulic rod, 9 feeding port, 10 screening plate, 11 support foot, 12 compression spring, 13 return barrel, 14 second motor, 15 dragon, 16 discharge hole, 17 discharge port, 18 first bevel gear, 19 cross bar, 20 rotating rod, 21 second bevel gear, 22 cam, 23 feed port, 24 discharge barrel. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Reference Figure 1-Figure 4 , an impact crusher for adjusting the discharging gradation, comprising a base 1, a crushing assembly is fixedly connected to the top surface of the base 1 through a support plate 2, a screening assembly is arranged below the crushing assembly, and a return assembly is fixedly connected to the top surface of the base 1 through a tripod 3;

[0027] The crushing assembly includes a crushing box 4, a first motor 5 is fixedly connected to the side wall of the crushing box 4, a crushing hammer 6 is fixedly connected to the output end of the first motor 5, two impact plates 7 are rotatably connected to the inner wall of the crushing box 4, two hydraulic rods 8 are fixedly connected to the top surface and side wall of the crushing box 4, the two hydraulic rods 8 respectively penetrate the top surface and side wall of the crushing box 4, and the output ends of the two hydraulic rods 8 are respectively hinged to the top surfaces of the two impact plates 7, and the function of adjusting the discharge gradation is achieved by adjusting the angle between the impact plate 7 and the crushing hammer 6. The crushing box 4 is provided with an opening, and a feeding port 9 is provided at the top of the crushing box 4.

[0028] When in use, adjust the hydraulic rod 8, adjust the impact plate 7 to a suitable angle, start the first motor 5, and the first motor 5 drives the breaker 6 to rotate. After the raw material enters the crushing box 4 through the feeding port 9, the breaker 6 crushes the material. The crushed material bounces to the impact plate 7 and then bounces back to the breaker 6 to be crushed again. This process is repeated until the material width can fall through the gap between the breaker 6 and the impact plate 7 and enters the next process.

[0029] Reference Figure 1-Figure 4The screening assembly includes a screening plate 10, which is inclined and divided into an upper end and a lower end. The upper end of the screening plate 10 is provided with a plurality of discharge holes 16 in a rectangular array, and the lower end of the screening plate 10 is arranged in a trapezoidal shape, and a discharge port 17 is provided at the lower end of the screening plate 10. A support foot 11 is fixedly connected to the top surface of the base 1, and the top surface of the support foot 11 is connected to the bottom surface of the screening plate 10 through a compression spring 12; the return material assembly includes a return material cylinder 13, and the return material cylinder 13 A discharge cylinder 24 is provided at the top, and the return cylinder 13 is connected to the crushing box 4 through the discharge cylinder 24. A second motor 14 is fixedly connected to the bottom surface of the base 1, and a dragon 15 is fixedly connected to the output end of the second motor 14. The dragon 15 penetrates and is rotatably connected to the bottom surface of the return cylinder 13. The end of the dragon 15 close to the motor 1 is fixedly connected to the first bevel gear 18. A cross bar 19 is fixedly connected between the two supporting feet 11 close to the return cylinder 13, and a rotating rod 20 is rotatably connected to the side wall of the cross bar 19. The end of the rotating rod 20 away from the cross bar 19 is fixedly connected to the second bevel gear 21, the first bevel gear 18 is meshed with the second bevel gear 21, and the end of the rotating rod 20 close to the cross bar 19 is fixedly connected to the cam 22. The rotation of the cam 22 will periodically lift the screen plate 10, and at the same time, the screen plate 10 will reciprocate under the elastic force of the compression spring 12, so that the products that meet the requirements fall from the discharge hole 16, and the large-size stones that do not meet the requirements flow out of the screen plate 10. , improve product quality, a feed port 23 is provided at the bottom end of the side wall of the return barrel 13, and the feed port 23 is communicated with the discharge port 17 when the screening plate 10 is lifted by the cam 22, and the large-size stones on the screening plate 10 fall into the return barrel 13 through the discharge port 17 and the feed port 23, and the second motor 14 drives the dragon 15 to rotate to lift the material, and finally the return barrel 13 at the top of the return barrel 13 falls into the crushing box 4 for secondary crushing, without adding additional production processes, thereby improving production efficiency.

[0030] When in use, the second motor 14 is started, and the crushed material falls onto the screening plate 10. The second motor 14 drives the dragon 15 and the first bevel gear 18 to rotate. The rotation of the first bevel gear 18 drives the second bevel gear 21, the rotating rod 20 and the cam 22 to rotate. The rotation of the cam 22 will periodically lift the screening plate 10. At the same time, under the elastic force of the compression spring 12, the screening plate 10 reciprocates, so that the products that meet the requirements fall from the discharge hole 16, and the large-size stones that do not meet the requirements flow out from the screening plate 10, thereby improving the product quality. At the same time, the large-size stones on the screening plate 10 fall into the return barrel 13 through the discharge port 17 and the feed port 23. The second motor 14 drives the dragon 15 to rotate to lift the material, and finally the material falls into the crushing box 4 from the return barrel 13 at the top of the return barrel 13 for secondary crushing. There is no need to add additional production processes, thereby improving production efficiency.

[0031] The functional principle of the utility model can be explained through the following operation modes:

[0032] When in use, adjust the hydraulic rod 8, adjust the impact plate 7 to a suitable angle, start the first motor 5, and the first motor 5 drives the breaker 6 to rotate. After the raw material enters the crushing box 4 through the feeding port 9, the breaker 6 crushes the material. The crushed material bounces to the impact plate 7 and then bounces back to the breaker 6 to be crushed again. This process is repeated until the material width can fall through the gap between the breaker 6 and the impact plate 7 and enters the next process.

[0033] When in use, the second motor 14 is started, and the crushed material falls onto the screening plate 10. The second motor 14 drives the dragon 15 and the first bevel gear 18 to rotate. The rotation of the first bevel gear 18 drives the second bevel gear 21, the rotating rod 20 and the cam 22 to rotate. The rotation of the cam 22 will periodically lift the screening plate 10. At the same time, under the elastic force of the compression spring 12, the screening plate 10 reciprocates, so that the products that meet the requirements fall from the discharge hole 16, and the large-size stones that do not meet the requirements flow out from the screening plate 10, thereby improving the product quality. At the same time, the large-size stones on the screening plate 10 fall into the return barrel 13 through the discharge port 17 and the feed port 23. The second motor 14 drives the dragon 15 to rotate to lift the material, and finally the material falls into the crushing box 4 from the return barrel 13 at the top of the return barrel 13 for secondary crushing. There is no need to add additional production processes, thereby improving production efficiency.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An impact crusher for adjusting the discharging gradation, characterized in that: include: A base (1), the top surface of the base (1) being fixedly connected to a crushing assembly via a support plate (2), a screening assembly being arranged below the crushing assembly, and a return material assembly being fixedly connected to the top surface of the base (1) via a tripod (3); The crushing assembly comprises a crushing box (4), a first motor (5) is fixedly connected to the side wall of the crushing box (4), a crushing hammer (6) is fixedly connected to the output end of the first motor (5), two impact plates (7) are rotatably connected to the inner wall of the crushing box (4), two hydraulic rods (8) are fixedly connected to the top surface and side wall of the crushing box (4), the two hydraulic rods (8) respectively penetrate the top surface and side wall of the crushing box (4), and the output ends of the two hydraulic rods (8) are respectively hinged to the top surfaces of the two impact plates (7), the crushing box (4) is provided with an opening, and a feeding port (9) is provided at the top of the crushing box (4); The screening assembly comprises a screening plate (10), a supporting foot (11) being fixedly connected to the top surface of the base (1), and the top surface of the supporting foot (11) being connected to the bottom surface of the screening plate (10) via a compression spring (12); The material return assembly comprises a material return barrel (13), the bottom surface of the base (1) is fixedly connected to a second motor (14), the output end of the second motor (14) is fixedly connected to a dragon (15), and the dragon (15) penetrates and is rotatably connected to the bottom surface of the material return barrel (13); The end of the dragon (15) close to the second motor (14) is fixedly connected to the first bevel gear (18); the two supporting feet (11) close to the return barrel (13) are fixedly connected to a cross bar (19); a rotating rod (20) is rotatably connected to the side wall of the cross bar (19); the end of the rotating rod (20) away from the cross bar (19) is fixedly connected to the second bevel gear (21); the first bevel gear (18) is meshed with the second bevel gear (21); and the end of the rotating rod (20) close to the cross bar (19) is fixedly connected to a cam (22).

2. The impact crusher for adjusting the discharging gradation according to claim 1, characterized in that: The sieve plate (10) is designed to be inclined. The sieve plate (10) is divided into two parts, an upper end and a lower end. The upper end of the sieve plate (10) is provided with a plurality of discharge holes (16) in a rectangular array, and the lower end of the sieve plate (10) is arranged in a trapezoidal shape and is provided with a discharge port (17).

3. The impact crusher for adjusting the discharging gradation according to claim 2, characterized in that: A feed inlet (23) is provided at the bottom end of the side wall of the return barrel (13), and the feed inlet (23) is communicated with the discharge outlet (17) when the screening plate (10) is lifted by the cam (22).

4. The impact crusher for adjusting the discharging gradation according to claim 1, characterized in that: A discharge cylinder (24) is provided at the top of the return cylinder (13), and the return cylinder (13) is connected to the crushing box (4) through the discharge cylinder (24).

5. The impact crusher for adjusting the discharging gradation according to claim 1, characterized in that: The bottom surface of the base (1) is provided with an anti-skid pad, and the anti-skid pad is made of rubber material.

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