Pre-crushing device for producing sg abrasive

Abstract

The utility model discloses a kind of pre-crushing devices for SG abrasive production, it is related to the field of SG abrasive crushing, including crushing box, driving mechanism, linear drive assembly and two parallelly arranged crushing rollers, the top opening of the crushing box is feed inlet, its bottom opening is discharge port, the front and rear sidewalls of the crushing box are respectively provided with sliding slot, the utility model adjusts the position of right crushing roller by controlling the synchronous extension and contraction of two hydraulic rods, drives two dynamic bearing seat transverse sliding, to control the discharge port gap between two crushing rollers, adapt to the SG abrasive production of different granularity requirement, improve the versatility of the device, and hydraulic rod drives adjustment discharge port gap, it is easy and efficient to operate, substantially shorten adjustment time, improve production efficiency, while reducing the error caused by manual intervention.

Description

Technical Field

[0001] This utility model belongs to the field of SG abrasive crushing, specifically relating to a pre-crushing device for SG abrasive production. Background Technology

[0002] In the abrasive manufacturing industry, especially in the production of SG abrasives (ceramic corundum abrasives), the pre-crushing of raw materials is a crucial pretreatment process. The performance of the pre-crushing device, particularly its ability to conveniently and accurately control the particle size of the final crushed product, directly affects the efficiency of subsequent grinding processes, the stability of product quality, and production energy consumption.

[0003] Double-roll crushers are often used as pre-crushing equipment due to their relatively simple structure and high crushing efficiency. Their core principle is to use two counter-rotating crushing rollers to compress and crush the material, which is then discharged through the gap between the rollers (the discharge port). The maximum particle size of the final crushed product mainly depends on the size of this discharge port gap.

[0004] Existing pre-crushing devices for SG abrasives: some devices use crushing components with fixed structures, and the size of the discharge port cannot be adjusted, making them only suitable for production scenarios with single particle size requirements, resulting in poor versatility; other devices are equipped with adjustment functions, but the adjustment mechanisms are mostly manually operated, which is not only cumbersome but also inefficient.

[0005] Therefore, we propose a pre-crushing device for SG abrasive production to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing pre-crushing devices for SG abrasives, some devices employ fixed crushing components with adjustable discharge opening sizes, limiting their applicability to production scenarios requiring a single particle size and resulting in poor versatility. Other devices, while equipped with adjustment functions, often rely on manual operation, leading to cumbersome and inefficient adjustment processes. This invention provides a pre-crushing device for SG abrasive production.

[0007] The solution adopted by this utility model to solve its technical problem is: a pre-crushing device for SG abrasive production, including a crushing box, a drive mechanism, a linear drive assembly and two parallel crushing rollers. The top opening of the crushing box is the feed inlet, and the bottom opening is the discharge outlet. Sliding grooves are respectively opened on the front and rear side walls of the crushing box. The front and rear sides of the crushing box are welded and fixed with fixed frames respectively. The inner cavity of the fixed frame is provided with a fixed bearing seat and a moving bearing seat. The fixed bearing seat is fixedly installed in the inner cavity of the fixed frame, and the moving bearing seat can slide along the inner cavity of the fixed frame. Two crushing rollers are arranged in the inner cavity of the crushing box. Roller shafts are installed in the inner holes of the crushing rollers. The two ends of one roller shaft are respectively installed in two fixed bearing seats, and the two ends of the other roller shaft pass through two front and rear sliding grooves and are respectively installed in two moving bearing seats. The linear drive assembly is mounted on the fixed frame and connected to the moving bearing housing for driving the lateral movement of the moving bearing housing; The drive mechanism is installed in a fixed frame and is connected to the two roller shafts for driving the roller shafts to rotate.

[0008] Preferably, two support feet are welded and fixed to the bottom of the fixed frame.

[0009] Preferably, the linear drive assembly includes two hydraulic rods, which are respectively mounted on the right side of the two fixed frames. The piston rods of the hydraulic rods pass through the right side wall of the fixed frame and are connected to the dynamic bearing seat.

[0010] Preferably, the drive mechanism includes a geared motor, a movable shaft, a docking shaft, and two bevel gears, the two bevel gears being respectively mounted on the front ends of the two roller shafts; The movable shaft and the docking shaft are located in front of the second bevel gear. The first bevel gear is mounted on the movable shaft and the docking shaft respectively. The first bevel gear meshes with the second bevel gear. The opposite ends of the movable shaft and the docking shaft are each fitted with a bearing seat. The first bearing seat on one side is installed on the inner top of the fixed frame, and the first bearing seat on the other side is installed on the front side of the movable bearing seat. The docking shaft has a multi-faceted groove at one end near the movable shaft. A multi-faceted shaft is fixedly connected to the other end of the movable shaft near the multi-faceted groove. The multi-faceted shaft is slidably disposed in the multi-faceted groove. The reduction motor is fixedly installed in the fixed frame on the rear side and is located on the rear side of the fixed bearing seat. The output shaft of the reduction motor is connected to the rear end of the roller shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model controls the synchronous extension and retraction of two hydraulic rods to drive the two moving bearing seats to slide laterally, thereby adjusting the position of the right crushing roller and controlling the discharge port gap between the two crushing rollers. This adapts to the production of SG abrasive with different particle size requirements, improves the versatility of the device, and the hydraulic rod-driven adjustment of the discharge port gap is simple and efficient to operate, greatly shortens the adjustment time, improves production efficiency, and reduces errors caused by manual intervention.

[0012] 2. This utility model adopts a sliding fit structure of multi-faceted shaft and multi-faceted groove, combined with the meshing transmission of bevel gear one and bevel gear two. When the moving bearing seat drives the crushing roller to move laterally to adjust the gap, the multi-faceted shaft can slide synchronously in the multi-faceted groove, ensuring that the power can be stably transmitted to the two crushing rollers. Attached Figure Description

[0013] Figure 1 This is a frontal cross-sectional view of the present invention. Figure 2 This is a front view structural diagram of the present invention; Figure 3 This is a schematic diagram of the rear view structure of this utility model.

[0014] In the diagram: 1 Crushing box, 2 Fixed frame, 3 Support foot, 4 Roller shaft, 5 Crushing roller, 6 Hydraulic rod, 71 Bearing seat 1, 72 Movable shaft, 73 Multi-faceted shaft, 74 Bevel gear 1, 75 Connecting shaft, 76 Bevel gear 2, 8 Fixed bearing seat, 9 Movable bearing seat, 10 Gear reducer motor, 11 Slide groove. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please see Figure 1-3 This utility model provides a technical solution for a pre-crushing device for SG abrasive production: Example 1: according to Figure 1-3 As shown, it includes a crushing box 1, a drive mechanism, a linear drive assembly, and two parallel crushing rollers 5. The top opening of the crushing box 1 is the feed inlet, and the bottom opening is the discharge outlet. Slide grooves 11 are respectively provided on the front and rear side walls of the crushing box 1.

[0017] The front and rear sides of the crushing box 1 are respectively welded and fixed with a fixed frame 2. The bottom of the fixed frame 2 is welded and fixed with two support feet 3. The inner cavity of the fixed frame 2 is provided with a fixed bearing seat 8 and a moving bearing seat 9. The fixed bearing seat 8 is fixedly installed in the inner cavity of the fixed frame 2, and the moving bearing seat 9 can slide along the inner cavity of the fixed frame 2. The fixed frame 2 provides precise sliding guidance for the moving bearing seat 9.

[0018] Two crushing rollers 5 are installed inside the crushing box 1. Roller shafts 4 are installed in the inner holes of the crushing rollers 5. The two ends of one roller shaft 4 are respectively installed in two fixed bearing seats 8, and the two ends of the other roller shaft 4 pass through two front and rear sliding grooves 11 and are respectively installed in two moving bearing seats 9. The two moving bearing seats 9 slide laterally to adjust the position of the right crushing roller 5, thereby controlling the discharge port gap between the two crushing rollers 5, adapting to the production of SG abrasive with different particle size requirements, and improving the versatility of the device.

[0019] The linear drive assembly includes two hydraulic rods 6, which are respectively installed on the right side of the two fixed frames 2. The piston rods of the hydraulic rods 6 pass through the right side wall of the fixed frame 2 and are connected to the moving bearing seat 9. By controlling the synchronous extension and retraction of the two hydraulic rods 6, the two moving bearing seats 9 are driven to move laterally. The hydraulic rods 6 drive the adjustment of the discharge port gap. The operation is simple and efficient, greatly shortening the adjustment time, improving production efficiency, and reducing the error caused by manual intervention.

[0020] The drive mechanism includes a geared motor 10, a movable shaft 72, a docking shaft 75, and two bevel gears 76, which are respectively mounted on the front ends of the two roller shafts 4.

[0021] The movable shaft 72 and the docking shaft 75 are located in front of the second bevel gear 76. The first bevel gear 74 is mounted on the movable shaft 72 and the docking shaft 75 respectively. The two first bevel gears 74 are symmetrically arranged and mesh with the second bevel gear 76. The opposite ends of the movable shaft 72 and the docking shaft 75 are each fitted with a bearing seat 71. One bearing seat 71 is installed on the inner top of the fixed frame 2, and the other bearing seat 71 is installed on the front side of the movable bearing seat 9. Under the action of the two bearing seats 71, the stability of the movable shaft 72 and the docking shaft 75 during rotation is ensured.

[0022] A multi-faceted groove is provided at one end of the docking shaft 75 near the movable shaft 72. A multi-faceted shaft 73 is fixedly connected to one end of the movable shaft 72 near the multi-faceted groove. The multi-faceted shaft 73 is slidably disposed in the multi-faceted groove. By adopting the sliding fit structure between the multi-faceted shaft 73 and the multi-faceted groove, combined with the meshing transmission of bevel gear 1 74 and bevel gear 2 76, when the moving bearing seat 9 drives the crushing roller 5 to move laterally to adjust the gap, the multi-faceted shaft 73 can slide synchronously in the multi-faceted groove, ensuring that the power can be stably transmitted to the two crushing rollers 5.

[0023] The geared motor 10 is fixedly installed in the rear fixed frame 2 and located behind the fixed bearing seat 8. The output shaft of the geared motor 10 is connected to the rear end of the roller shaft 4 and is used to drive the roller shaft 4 to rotate.

[0024] In practical use, the pre-crushing device for SG abrasive production of this utility model first starts the hydraulic system according to the particle size requirements of the target SG abrasive, controls the two hydraulic rods 6 to extend or retract synchronously, pushes the two moving bearing seats 9 to slide laterally, drives the right crushing roller 5 to move, thereby changing the distance between it and the left crushing roller 5, controlling the discharge port gap between the two crushing rollers 5, and at the same time confirming that the multi-faceted shaft 73 and the multi-faceted groove are connected normally, and that the bevel gear 1 74 and the bevel gear 2 76 are meshing normally.

[0025] Turn on the geared motor 10 to drive the left roller 4 to rotate. The power is transmitted to the right roller 4 through bevel gear 1 74 and bevel gear 2 76, causing the two crushing rollers 5 to rotate in opposite directions. Then, the SG abrasive raw material to be crushed is evenly fed into the top feed port of the crushing box 1. The material is crushed under the squeezing action of the double rollers, and the crushed material is discharged from the bottom discharge port of the crushing box 1.

Claims

1. A pre-crushing device for SG abrasive production, comprising a crushing box, a drive mechanism, a linear drive assembly, and two parallel crushing rollers, wherein the top opening of the crushing box is a feed inlet, and the bottom opening is a discharge outlet, characterized in that: The front and rear side walls of the crushing box are respectively provided with sliding grooves; The front and rear sides of the crushing box are welded and fixed with fixed frames respectively. The inner cavity of the fixed frame is provided with a fixed bearing seat and a moving bearing seat. The fixed bearing seat is fixedly installed in the inner cavity of the fixed frame, and the moving bearing seat can slide along the inner cavity of the fixed frame. Two crushing rollers are arranged in the inner cavity of the crushing box. Roller shafts are installed in the inner holes of the crushing rollers. The two ends of one roller shaft are respectively installed in two fixed bearing seats, and the two ends of the other roller shaft pass through two front and rear sliding grooves and are respectively installed in two moving bearing seats. The linear drive assembly is mounted on the fixed frame and connected to the moving bearing housing for driving the lateral movement of the moving bearing housing; The drive mechanism is installed in a fixed frame and is connected to the two roller shafts for driving the roller shafts to rotate.

2. The pre-crushing device for SG abrasive production according to claim 1, characterized in that: Two support feet are welded and fixed to the bottom of the fixed frame.

3. The pre-crushing device for SG abrasive production according to claim 1, characterized in that: The linear drive assembly includes two hydraulic rods, which are respectively mounted on the right side of the two fixed frames. The piston rods of the hydraulic rods pass through the right side wall of the fixed frames and are connected to the dynamic bearing seat.

4. The pre-crushing device for SG abrasive production according to claim 1, characterized in that: The drive mechanism includes a geared motor, a movable shaft, a docking shaft, and two bevel gears, which are respectively mounted on the front ends of the two roller shafts. The movable shaft and the docking shaft are located in front of the second bevel gear. The first bevel gear is mounted on the movable shaft and the docking shaft respectively. The first bevel gear meshes with the second bevel gear. The opposite ends of the movable shaft and the docking shaft are each fitted with a bearing seat. The first bearing seat on one side is installed on the inner top of the fixed frame, and the first bearing seat on the other side is installed on the front side of the movable bearing seat. The docking shaft has a multi-faceted groove at one end near the movable shaft. A multi-faceted shaft is fixedly connected to the other end of the movable shaft near the multi-faceted groove. The multi-faceted shaft is slidably disposed in the multi-faceted groove. The reduction motor is fixedly installed in the fixed frame on the rear side and is located on the rear side of the fixed bearing seat. The output shaft of the reduction motor is connected to the rear end of the roller shaft.

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