A silicon material crusher with adjustable roll gap

Abstract

This invention provides a silicon material crusher with adjustable roll pitch. The invention includes a base, a crushing chamber, a left roll, a right roll, a left roll drive system, a right roll drive system, and a variable pitch drive system for driving the left and right rolls respectively. The crushing chamber is mounted on the base, and the base has a discharge port corresponding to the position of the crushing chamber. The main bodies of the left and right rolls are located inside the crushing chamber, and the ends of the left and right rolls are respectively connected to corresponding sliding plates slidably connected to the crushing chamber. The left roll drive system is connected to the left roll, and the right roll drive system is connected to the right roll. Two variable pitch drive systems are provided, one at the head end and the other at the tail end of the crushing chamber. Each system includes a variable pitch drive motor, a reducer, a coupling, a T-screw, a screw nut seat, a sliding plate, and a screw nut seat. This design ensures the synchronicity, straightness, and positional accuracy of the roll pitch adjustment, avoiding jamming or uneven loading problems caused by unilateral or asynchronous adjustments.

Description

Technical Field

[0001] This utility model relates to the field of crushing technology for silicon materials and other hard and brittle materials, and in particular to a silicon material crusher with adjustable roll gap. Background Technology

[0002] Silicon is a fundamental material in the photovoltaic and semiconductor industries, and its crushing is a crucial step in the production process. A crusher feeds edge materials and large crystal pieces between two tungsten steel rollers, where the rollers crush the material through rotation. The crushed material is then separated into different sizes by a sorting device. Existing crushers, including model 202110777835.8, have a fixed roller spacing, preventing automatic adjustment. This limits the size of the crushed crystal material. For crystal materials of different sizes, frequent manual adjustments of both rollers are required. This process is complex, has low automation, and results in high operator workload. Utility Model Content

[0003] To address the aforementioned technical problems, this invention provides a silicon material crusher with adjustable roll gap, aiming to solve the problems of low efficiency and poor accuracy in manual roll gap adjustment in existing technologies. The technical means employed in this invention are as follows: A silicon material crusher with adjustable roll pitch includes a base, a crushing chamber, a left roll, a right roll, a left roll drive system, a right roll drive system, and a variable pitch drive system for driving the left and right rolls respectively. The crushing chamber is disposed on the base, and the base has a discharge port corresponding to the position of the crushing chamber. The main bodies of the left and right rolls are disposed inside the crushing chamber, and the ends of the left and right rolls are respectively connected to corresponding sliding plates slidably connected to the crushing chamber. The left roll drive system is connected to the left roll, and the right roll drive system is connected to the right roll. The variable pitch drive system consists of two sets, respectively located at the head and tail ends of the crushing chamber. Each set includes a variable pitch drive motor, a reducer, a coupling, a T-shaped lead screw, a lead screw nut seat, a sliding plate, and a lead screw nut seat. The variable pitch drive motor drives the corresponding T-shaped lead screw to rotate through the reducer and coupling. The T-shaped lead screw has threaded sections with different helical directions on its left and right sides, with a lead screw nut installed on each of the two threaded sections. The lead screw nut is installed in the lead screw nut seat, and the lead screw nut seat is connected to the corresponding sliding plate.

[0004] Furthermore, the crushing chamber is connected to a speed reducer mounting base and a bearing mounting base, which are used to install the speed reducer and the bearing, respectively.

[0005] Furthermore, a protective shell is installed on the outside of the crushing chamber above the base.

[0006] Furthermore, the crushing chamber is provided with a slide for mounting a sliding plate.

[0007] Furthermore, both the left roller drive system and the right roller drive system include a drive motor, a toothed belt, and a tensioning device; the toothed belt connects the output shaft of the drive motor to the toothed pulley at the end of the roller shaft, and the tensioning device includes an adjusting screw, which adjusts the tension of the toothed belt.

[0008] This invention has the following advantages: It uses T-shaped lead screws with opposite rotation directions as the core transmission element. T-shaped lead screws have good self-locking properties and strong load-bearing capacity, making them suitable for adjustment mechanisms that need to withstand crushing reaction forces. Two lead screw nut seats mesh with left-hand and right-hand lead screws respectively. The lead screw nut seats ensure that the nuts can only move along the lead screw axis and cannot rotate. The sliding plate directly transmits the linear motion of the nut seats to the bearing seats of the rolls. When the motor drives the two lead screws to rotate synchronously, due to their opposite rotation directions, the two nut seats will inevitably produce synchronous, opposite, and equal-speed linear motion. This motion characteristic perfectly matches the requirement for synchronous and symmetrical movement of the two rolls in the double-roll gap adjustment. The sliding plate, as a rigid connecting component, accurately converts linear displacement into changes in roll gap. This mechanical structure ensures the synchronicity, linearity, and positional accuracy of the roll gap adjustment, avoiding jamming or uneven loading problems caused by unilateral adjustment or asynchrony. Its structure is relatively simple and reliable, with strong load-bearing capacity. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the tension range adjustment of the roller drive system of this utility model.

[0012] In the diagram: 1. Base; 2. Left roller; 3. Right roller; 4. Left roller drive system; 5. Right roller drive system; 6. Variable pitch drive system; 7. Crushing chamber; 8. Slide plate; 9. T-screw; 10. Screw nut seat; 11. Reducer mounting base; 12. Bearing mounting base; 13. Toothed belt. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] like Figure 1 , Figure 2 As shown in the figure, this utility model discloses a silicon material crusher with adjustable roll pitch, including a base, a crushing chamber, a left roll, a right roll, a left roll drive system, a right roll drive system, and a variable pitch drive system for driving the left and right rolls respectively. The crushing chamber 7 is disposed on the base 1, and the base has a discharge port at a position corresponding to the crushing chamber. The main bodies of the left roll 2 and right roll 3 are disposed inside the crushing chamber, and the ends of the left and right rolls are respectively connected to corresponding sliding plates slidably connected to the crushing chamber. The left roll drive system 4 is connected to the left roll, and the right roll drive system 5 is connected to the right roll drive system. System 5 is connected to the right roller. The variable pitch drive system 6 consists of two sets, respectively located at the head and tail ends of the crushing chamber. Each set includes a variable pitch drive motor, a reducer, a coupling, a T-type lead screw 9, a lead screw nut seat 10, a slide plate 8, and a lead screw nut seat 10. The variable pitch drive motor drives the corresponding T-type lead screw to rotate through the reducer and coupling. The T-type lead screw has threaded sections with different helical directions on its left and right sides, with lead screw nuts installed on both threaded sections. The lead screw nuts are installed in the lead screw nut seat, and the lead screw nut seat is connected to the corresponding slide plate.

[0015] The crushing chamber assembly mainly carries silicon material and supports the rollers and variable pitch drive system. It has an opening at the bottom, through which the crushed silicon material falls into the subsequent process below the crushing chamber, namely the vibration sorting device.

[0016] Furthermore, the crushing chamber is connected to a reducer mounting base 11 and a bearing mounting base 12, which are used to install the reducer and the bearing, respectively.

[0017] Furthermore, a protective shell is installed on the outside of the crushing chamber above the base.

[0018] Furthermore, the crushing chamber is provided with a slide for mounting a sliding plate.

[0019] In this embodiment, the left and right roller drive systems have the same structure, both including a drive motor and a toothed belt 13 as a transmission device. The toothed belt 13 is equipped with toothed pulleys, connecting the output shaft of the drive motor to the toothed pulleys at the roller shaft end. One end of the left roller drive system is connected to the roller shaft end, and the other end is connected to the motor. The tensioning device includes an adjusting screw, which adjusts the tension of the toothed belt. Before adjustment, the tensioning screw of the motor device is loosened to adjust the roller spacing. After loosening, the tension of the transmission device disappears, no longer forming a rigid constraint on the left roller. The left roller can move freely to adjust the spacing with the right roller without being pulled or obstructed by the transmission device. After the spacing is adjusted to the correct position, the tensioning screw is tightened again, the transmission device returns to its tensioned state, and the motor can once again stably drive the left roller to rotate through the drive system.

[0020] The right roller drive system has the same structure and operation.

[0021] The rollers used in this embodiment are made of tungsten-cobalt alloy material, with ratchet protrusions arranged longitudinally and transversely on the surface. When the two rollers roll inwards, they can crush the silicon material sandwiched between them, thus achieving the crushing of large pieces (rods) of silicon material.

[0022] In some alternative implementations, one end of the T-shaped lead screw 9 can be extended out of the crushing chamber 7 and a handwheel can be added. The lead screw can be driven to rotate by manually turning the handwheel, which will drive the left and right slide plates to move in opposite directions synchronously. This is suitable for small-batch, low-frequency silicon material crushing scenarios.

[0023] In some alternative implementations, fully automatic control is achieved by improving upon the manual adjustment structure as follows: A PLC controller is used as the core; the operator inputs the target roller distance on a touchscreen, and the PLC calculates the required movement distance and generates control commands. This drives the T-screw to rotate, which in turn moves the slide plate 8 via the screw nut seat.

[0024] The advantages of this invention are that the gap between the two rollers is automatically adjustable, enabling the crushing of silicon materials of different specifications without the need to replace the rollers. It improves automation, reduces the labor intensity of operators changing rollers in existing technologies, and is highly efficient. For the same output of silicon materials of different specifications, this invention requires a smaller footprint.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A roll gap adjustable silicon material crusher, characterized by, The system includes a base, a crushing chamber, a left roller, a right roller, a left roller drive system, a right roller drive system, and a variable pitch drive system for driving the left and right rollers respectively. The crushing chamber is mounted on the base, and the base has a discharge port corresponding to the position of the crushing chamber. The main bodies of the left and right rollers are disposed inside the crushing chamber, and the ends of the left and right rollers are respectively connected to corresponding sliding plates slidably connected to the crushing chamber. The left roller drive system is connected to the left roller, and the right roller drive system is connected to the right roller. The variable pitch drive system... The system consists of two sets, located at the head and tail ends of the crushing chamber, respectively. Each set includes a variable-pitch drive motor, a reducer, a coupling, a T-shaped lead screw, a lead screw nut seat, a sliding plate, and a lead screw nut seat. The variable-pitch drive motor drives the corresponding T-shaped lead screw to rotate through the reducer and coupling. The T-shaped lead screw has threaded sections with different helical directions on its left and right sides, with lead screw nuts installed on both threaded sections. The lead screw nuts are installed in the lead screw nut seats, which are connected to the corresponding sliding plates.

2. The roll gap adjustable silicon briquetting machine according to claim 1, wherein, The crushing chamber is connected to a speed reducer mounting base and a bearing mounting base, which are used to install the speed reducer and the bearing, respectively.

3. The roll gap adjustable silicon breaker mill according to claim 1, wherein, A protective shell is installed on the outside of the crushing chamber above the base.

4. The roll gap adjustable silicon breaker mill according to claim 1, wherein, The crushing chamber is provided with a slide for mounting a sliding plate.

5. The roll gap adjustable silicon boulder crusher of claim 1, wherein, Both the left roller drive system and the right roller drive system include a drive motor, a toothed belt, and a tensioning device; the toothed belt connects the output shaft of the drive motor to the toothed pulley at the end of the roller shaft, and the tensioning device includes an adjusting screw, which adjusts the tension of the toothed belt.

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