Silicon-chromium alloy crushing device

Abstract

This application provides a silicon-chromium alloy crushing device, including a frame, a crushing roller assembly mounted on the frame, a transmission assembly for driving the crushing roller assembly to rotate, and an adjustment assembly for adjusting the roller spacing of the crushing roller assembly. The crushing roller assembly includes a first crushing roller and a second crushing roller arranged in parallel front to rear. A crushing box cover with a feed inlet is provided on the upper periphery of the crushing roller assembly and connected to the frame. The left and right ends of the roller shaft of the first crushing roller are rotatably mounted on fixed seats on the frame. Two fixed seats are symmetrically fixed on the upper part of the frame. The left and right ends of the roller shaft of the second crushing roller are mounted on sliding seats on the frame. A set of adjustment assemblies is connected to the rear side of each of the two sliding seats. The adjustment assemblies include springs and limiting mechanisms. This application can improve the compatibility with various crushing conditions and reduce the risk of jamming or abnormal impact caused by material fluctuations.

Description

Technical Field

[0001] This application relates to the field of crushing equipment technology, and in particular to a silicon-chromium alloy crushing device. Background Technology

[0002] In the metallurgical industry, especially in the processing of high-strength alloy materials such as silicon-chromium alloys, it is often necessary to crush large alloy materials to meet the requirements of subsequent smelting or mixing processes. Crushed silicon-chromium alloys are widely used as common alloying additives in the production of materials such as stainless steel and high-strength steel. Therefore, effective crushing of silicon-chromium alloy raw materials is a crucial foundation for achieving precise control of alloy composition and improving production efficiency. Due to the high hardness, large size, and strong impact of silicon-chromium alloys, conventional crushing equipment often faces problems such as insufficient crushing efficiency, rapid component wear, and poor adaptability. To address these issues, the industry typically employs a double-roll crushing structure, relying on the interlocking action between two relatively rotating crushing rollers to crush high-hardness alloy blocks.

[0003] In existing double-roll crushing equipment, the two crushing rolls are usually symmetrically fixed. When the material size changes or local oversized hard blocks appear, it is difficult for the crushing rolls to quickly adapt to the change in spacing, which can easily cause severe vibration of the equipment or even overload shutdown. At the same time, sudden impact loads can also be transmitted to the frame or motor drive system, affecting the service life and stability of the whole machine.

[0004] In summary, existing silicon-chromium alloy crushing devices typically struggle to dynamically adapt to changes in material size and lack the ability to buffer crushing impacts, thus failing to adequately meet the practical requirements for continuous and stable crushing of high-strength silicon-chromium alloy materials. Utility Model Content

[0005] This application provides a silicon-chromium alloy crushing device to solve the problems in existing crushing equipment that make it difficult to dynamically adapt to changes in material size and lack the ability to buffer crushing impact due to the fixed spacing of the crushing rollers.

[0006] This application provides a silicon-chromium alloy crushing device, including a frame, a crushing roller assembly disposed on the frame, a transmission assembly for driving the crushing roller assembly to rotate, and an adjustment assembly for adjusting the roller spacing of the crushing roller assembly;

[0007] The crushing roller assembly includes a first crushing roller and a second crushing roller arranged in parallel front to back. A crushing box cover with a feed inlet is provided on the upper periphery of the crushing roller assembly and connected to the frame. The left and right ends of the first crushing roller's shaft are rotatably mounted on fixed seats on the frame. Two fixed seats are symmetrically fixed on the frame. The left and right ends of the second crushing roller's shaft are mounted on sliding seats on the frame. Two sliding seats are slidably disposed on the frame and located on the rear side of each fixed seat. A set of adjusting components is connected to the rear side of each sliding seat. The adjusting components include a spring and a limiting mechanism. One end of the spring is connected to the sliding seat to apply an elastic force to the sliding seat to automatically adjust the spacing and buffer the crushing impact force. The other end of the spring is connected to a limiting mechanism to limit the initial position of the spring. The transmission component is used to drive the first and second crushing rollers to rotate. The transmission component is a dual-motor belt drive component, capable of driving the first and second crushing rollers to rotate synchronously or differentially.

[0008] In one optional embodiment, the limiting mechanism includes a threaded limiting rod, a limiting plate passing through the threaded limiting rod, and a first limiting threaded collar and a second limiting threaded collar for adjusting the initial position of the spring. One end of the threaded limiting rod is connected to the frame, and the other end of the threaded limiting rod points towards the sliding seat. The first limiting threaded collar and the second limiting threaded collar are threadedly connected to the threaded limiting rod and abut against the limiting plate on the front and rear sides, respectively. The limiting plate is slidably connected to the frame. The rear end of the spring is fixedly connected to the front plate surface of the limiting plate, and the front end of the spring is fixedly connected to the rear side surface of the sliding seat.

[0009] In one alternative embodiment, the spring is a tension spring made of high-elasticity alloy steel 60Si2Mn or 50CrVA.

[0010] In one optional embodiment, the roller surfaces of the first crushing roller and the second crushing roller are provided with a plurality of annular grooves arranged at intervals along the axial direction. The annular grooves are used to enhance the clamping effect on the silicon-chromium alloy block and to restrict material slippage. The roller surfaces of the first crushing roller and the second crushing roller are made of alloy tool steel, which is heat-treated Cr12MoV or W6Mo5Cr4V2 steel.

[0011] In one optional embodiment, the transmission assembly is installed on a first motor and a second motor that are independently arranged on the left and right sides of the front of the frame. The first motor and the second motor are respectively connected to the first crushing roller and the second crushing roller through a pulley assembly to drive the first crushing roller and the second crushing roller to rotate respectively.

[0012] In one alternative embodiment, a receiving trough located below the crushing roller assembly is also included for collecting silicon-chromium alloy fragments that fall after crushing.

[0013] In one optional embodiment, a stop block is provided on the side of the fixed seat near the sliding seat to form a contact limit when the sliding seat moves to prevent the sliding seat from excessive displacement.

[0014] In one optional embodiment, the feed inlet is located at the top of the crushing chamber cover, the crushing chamber cover is generally a shell-like structure, and the bottom of the crushing chamber cover is an open structure.

[0015] Compared with the prior art, this application has the following beneficial effects:

[0016] 1. This application provides a silicon-chromium alloy crushing device, employing a "one moving, one stationary" crushing roller assembly structure, which enables the device to possess better crushing adaptability. The first crushing roller is mounted on the frame via a fixed base, while the second crushing roller is mounted on a sliding base, allowing it to slide along the front-to-back direction. The first and second crushing rollers are arranged parallel to each other on the frame, forming opposing interlocking surfaces along their axial direction. This structure overcomes the limitations of the rigid fixed installation of traditional double-roll crushers, enabling the second crushing roller to adapt to dynamic impacts and automatically adjust according to the size or hardness of the silicon-chromium alloy blocks. This improves compatibility with various crushing conditions and reduces the risk of jamming or abnormal impacts caused by material fluctuations. Especially when processing large-sized, high-strength silicon-chromium alloy materials, it provides sufficient displacement space for subsequent spacing adjustment and elastic response, enhancing the equipment's adaptability to complex working conditions.

[0017] 2. This application provides an adjustment assembly on the rear side of each of the two sliding seats. This assembly consists of a spring and a limiting mechanism. The spring connects the limiting mechanism to the sliding seat, causing the sliding seat to be elastically constrained to one side of the fixed seat. During the crushing process, if the silicon-chromium alloy block entering the crushing chamber is too large or has excessive local strength, the second crushing roller will move backward simultaneously with the sliding seat under pressure, allowing it to move out of position. The spring releases a reverse elastic force during the compression process, thereby pushing the sliding seat back to its original position, completing the automatic adjustment of the roller spacing. Simultaneously, the spring is connected to the limiting mechanism, which limits the initial position of the spring. This limits the spring's extension and contraction range, helping to control the sliding range of the sliding block and maintain the crushing roller spacing within a reasonable range for better crushing results.

[0018] 3. This application utilizes a coordinated adjustment structure comprised of a sliding seat, spring, and limiting mechanism to establish a buffer structure with flexible response capabilities between the two crushing rollers. When facing high-intensity material impacts, the device can promptly absorb and disperse the load, reducing the impact intensity on the frame and lowering the possibility of abnormal shutdowns. Simultaneously, the crushing roller assembly can automatically adjust the roller spacing according to the material conditions under stress, giving the equipment good operational continuity and adaptability, helping to improve overall operating efficiency and make operation more stable, thereby extending the service life of key components. Furthermore, regarding the power drive structure, this application adopts a dual-motor belt drive assembly. During use, the two crushing rollers can be driven independently, operating synchronously or differentially according to the load. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a silicon-chromium alloy crushing device provided in an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the silicon-chromium alloy crushing device provided in an embodiment of this application with the crushing chamber cover removed.

[0022] Figure 3 This is a schematic diagram of the structure of a crushing roller assembly provided in one embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a silicon-chromium alloy crushing device provided in another embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100. Frame; 110. Fixed base; 111. Stop block; 120. Sliding seat; 200. Crushing roller assembly; 210. First crushing roller; 220. Second crushing roller; 300. Transmission assembly; 310. First motor; 320. Second motor; 400. Adjustment assembly; 410. Spring; 420. Limiting mechanism; 421. Threaded limiting rod; 422. First limiting threaded collar; 423. Second limiting threaded collar; 424. Limiting plate; 500. Feeding trough; 600. Crushing box cover; 601. Feed inlet. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0027] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Please see Figures 1 to 4 , Figure 1 A schematic diagram of the overall structure of a silicon-chromium alloy crushing device provided in an embodiment of this application; Figure 2 This is a schematic diagram of the silicon-chromium alloy crushing device provided in an embodiment of this application with the crushing chamber cover removed. Figure 3 This is a schematic diagram of the structure of a crushing roller assembly provided in one embodiment of this application; Figure 4 This is a schematic diagram of the structure of a silicon-chromium alloy crushing device provided in another embodiment of this application.

[0031] like Figures 1-3 As shown, this application provides a silicon-chromium alloy crushing device, including a frame 100, a crushing roller assembly 200 disposed on the frame 100, a transmission assembly 300 for driving the crushing roller assembly 200 to rotate, and an adjustment assembly 400 for adjusting the roller spacing of the crushing roller assembly 200.

[0032] The crushing roller assembly 200 includes a first crushing roller 210 and a second crushing roller 220 arranged in parallel front to rear. A crushing box cover 600 with a feed inlet 601 is provided on the upper periphery of the crushing roller assembly 200 and connected to the frame 100. The left and right ends of the roller shaft of the first crushing roller 210 are rotatably mounted on fixed seats 110 on the frame 100. The two fixed seats 110 are symmetrically fixed above the frame 100. The left and right ends of the roller shaft of the second crushing roller 220 are mounted on sliding seats 120 on the frame 100. The two sliding seats 120 are slidably disposed on the frame 100 and located on one side behind the fixed seats 110. Optionally, in actual installation, bearings are installed in both the fixed seats 110 and the sliding seats 120 to connect the roller shafts of the first crushing roller 210 and the second crushing roller 220 respectively, thereby enabling flexible rotation of the two crushing rollers. A set of adjustment components 400 are respectively connected to the rear side of the two sliding seats 120. The adjustment components 400 include a spring 410 and a limiting mechanism 420. One end of the spring 410 is connected to the sliding seat 120 to apply an elastic force to the sliding seat 120 to automatically adjust the spacing and buffer the crushing impact force. The other end of the spring 410 is connected to the limiting mechanism 420 to limit the initial position of the spring 410. The transmission component 300 is used to drive the first crushing roller 210 and the second crushing roller 220 to rotate. The transmission component 300 is a dual-motor belt transmission component, which can drive the first crushing roller 210 and the second crushing roller 220 to rotate synchronously or differentially.

[0033] To address issues such as excessive structural rigidity and delayed response caused by material size fluctuations during crushing, this embodiment employs a "one moving, one stationary" crushing roller assembly structure, enabling the device to possess better crushing adaptability. The first crushing roller 210 is mounted on the frame 100 via a fixed base 110, while the second crushing roller 220 is mounted on a sliding base 120, allowing for sliding along the front-to-back direction. The first and second crushing rollers 210 and 220 are arranged parallel to each other on the frame 100, forming opposing interlocking surfaces along their axial direction. This structure overcomes the limitations of the rigid fixed installation of traditional double-roll crushers, enabling the second crushing roller 220 to adapt to dynamic impacts. It can automatically adapt to changes in the size or hardness of silicon-chromium alloy blocks, improving compatibility with various crushing conditions and reducing the risk of jamming or abnormal impacts caused by material fluctuations. Especially when processing large-sized, high-strength silicon-chromium alloy materials, it provides ample displacement space for subsequent spacing adjustments and elastic response, enhancing the equipment's adaptability to complex working conditions.

[0034] In conjunction with the above-mentioned sliding structure, this embodiment provides an adjustment assembly 400 on the rear side of each of the two sliding seats 120. The adjustment assembly consists of a spring 410 and a limiting mechanism 420. The spring 410 is connected between the limiting mechanism 420 and the sliding seat 120, so that the sliding seat 120 is elastically constrained to one side of the fixed seat 110. During the crushing process, if the volume of the silicon-chromium alloy block entering the crushing box 600 is too large or the local strength is too high, the second crushing roller 220 will move synchronously to make way under pressure while the sliding seat 120 moves backward. The spring 410 releases the reverse elastic force during the pressure process, thereby pushing the sliding seat 120 to gradually return to its original position, thus completing the automatic adjustment of the roller spacing. At the same time, the spring 410 is connected to the limiting mechanism 420, which can limit the initial position of the spring 410. Thus, when the initial position of the spring 410 is limited, the extension range of the spring 410 is also limited, which helps to control the sliding range of the sliding block and keep the gap between the crushing rollers within a reasonable range to achieve a better crushing effect.

[0035] Furthermore, this embodiment utilizes a coordinated adjustment structure comprised of the sliding seat 120, spring 410, and limiting mechanism 420 to establish a buffer structure with flexible response capabilities between the two crushing rollers. When facing high-intensity material impacts, the device can promptly absorb and disperse the load, reducing the impact intensity borne by the frame 100 and lowering the possibility of abnormal shutdowns. Simultaneously, the crushing roller assembly 200 can automatically adjust the roller spacing according to the material conditions under stress, giving the equipment good operational continuity and adaptability, helping to improve overall operating efficiency and make operation more stable, thereby extending the service life of key components. In addition, regarding the power drive structure, this embodiment uses a dual-motor belt drive assembly for the transmission component 300. During use, the two crushing rollers can be driven independently, operating synchronously or differentially according to the load.

[0036] In some embodiments, the limiting mechanism 420 includes a threaded limiting rod 421, a limiting plate 424 passing through the threaded limiting rod 421, and a first limiting threaded collar 422 and a second limiting threaded collar 423 for adjusting the initial position of the spring 410. One end of the threaded limiting rod 421 is connected to the frame 100, and the other end of the threaded limiting rod 421 points towards the sliding seat 120. The first limiting threaded collar 422 and the second limiting threaded collar 423 are threadedly connected to the threaded limiting rod 421 and abut against the limiting plate 424 on the front and rear sides, respectively. The limiting plate 424 is slidably connected to the frame 100. The rear end of the spring 410 is fixedly connected to the front plate surface of the limiting plate 424, and the front end of the spring 410 is fixedly connected to the rear side surface of the sliding seat 120.

[0037] In the above embodiment, the threaded limiting rod 421 in the limiting mechanism 420 serves as a positioning reference for installing and supporting the limiting plate 424. The limiting plate 424 passes through the threaded limiting rod 421. The front and rear sides of the limiting plate 424 are respectively equipped with a first limiting threaded collar 422 and a second limiting threaded collar 423. The two can be adjusted in position on the threaded limiting rod 421 by threaded engagement to achieve the position setting of the limiting plate 424. By adjusting the position of the limiting plate 424 through the first limiting threaded collar 422 and the second limiting threaded collar 423, the initial position of the spring 410 can be changed, so that the spring 410 can exert different elastic levels during the crushing process. This design provides an adjustable stroke boundary for the subsequent force rebound process of the sliding seat 120, thereby better realizing the adaptive adjustment of the roller spacing during the crushing process, making the extrusion intensity borne by the material after entering the crushing zone more stable, which helps to avoid violent crushing caused by excessive instantaneous impact.

[0038] Meanwhile, the limiting plate 424 is slidably connected to the frame 100, which facilitates smooth adjustment of the limiting plate 424. Moreover, one end of the spring 410 is fixed on the limiting plate 424, and the spring 410 is sleeved on the outer periphery of the threaded limiting rod 421, which can better prevent the spring from shifting laterally, so as to ensure the stable buffering function of the adjusting component 400.

[0039] In some embodiments, spring 410 is a tension spring, which is made of high-elasticity alloy steel 60Si2Mn or 50CrVA.

[0040] This embodiment uses a tension spring as a flexible adjustment element, preferably made of 60Si2Mn or 50CrVA high-elasticity alloy steel. These materials have a high elastic limit, good fatigue resistance, and strong recovery ability, making them suitable for operating environments that withstand long-term repeated tensile loads. In terms of structural arrangement, one end of the spring 410 is connected to the rear side of the sliding seat 120. During the crushing process, it is compressed and stores energy as the sliding seat moves under force. Subsequently, during the load reduction or the recovery phase of the crushing gap, it releases energy and pushes the sliding seat 120 back to its original position, thus constructing a stable displacement self-adjusting mechanism.

[0041] In some embodiments, the roller surfaces of the first crushing roller 210 and the second crushing roller 220 are provided with a plurality of annular grooves arranged at intervals along the axial direction. The annular grooves are used to enhance the biting effect on the silicon-chromium alloy block and to restrict material slippage. The roller surfaces of the first crushing roller 210 and the second crushing roller 220 are made of alloy tool steel, which is heat-treated Cr12MoV or W6Mo5Cr4V2 steel.

[0042] In this embodiment, the first crushing roller 210 and the second crushing roller 220 are provided with multiple annular grooves arranged at intervals along the axial direction, forming a regularly distributed meshing structure. When in contact with the silicon-chromium alloy block, this structure can simultaneously apply cutting and crushing forces at multiple contact points, which helps to enhance the biting effect of the material, reduce the probability of slippage, and improve the stability of the crushing stage.

[0043] The roller surfaces of the two crushing rollers are made of heat-treated Cr12MoV or W6Mo5Cr4V2 alloy tool steel. This type of material combines high hardness and wear resistance, making it suitable for repeated impacts and heavy-duty friction environments. During long-term crushing of silicon-chromium alloy blocks, this steel effectively resists erosion and stress concentration caused by the material, slowing down the wear rate of the roller surface geometry. The heat-treated metal structure is more uniform and dense, which helps maintain the morphological stability of the roller surface during continuous operation.

[0044] In some embodiments, the annular grooves on the first crushing roller 210 and the second crushing roller 220 are staggered along the axial direction. The staggered groove structure can form a multi-point dispersed stress zone in the crushing area, which helps to reduce the peak compressive stress borne by the material at the moment of contact, thereby reducing the risk of the material being over-crushed while ensuring crushing efficiency.

[0045] In some embodiments, the transmission assembly 300 is installed on the first motor 310 and the second motor 320, which are independently arranged on the left and right sides of the front of the frame 100. The first motor 310 and the second motor 320 are respectively connected to the first crushing roller 210 and the second crushing roller 220 through the pulley assembly, so as to drive the first crushing roller 210 and the second crushing roller 220 to rotate respectively.

[0046] In this embodiment, a first motor 310 and a second motor 320 are arranged at the front of the frame 100, corresponding to the first crushing roller 210 and the second crushing roller 220 respectively. The first motor 310 and the second motor 320 are connected to the first crushing roller 210 and the second crushing roller 220 respectively through pulley assemblies, forming a dual-motor independent drive structure. This drive method has a higher degree of freedom in power control. With the independence of the dual motors, the speed of the two crushing rollers can be adjusted according to the hardness difference of the silicon-chromium alloy block and the current load state, so as to achieve synchronous or differential operation, thereby improving the force condition of the material between the rollers and improving crushing efficiency. Moreover, each motor is connected to its corresponding crushing roller through an independently set pulley assembly, the transmission path is clear, the power transmission is more direct, and it helps to reduce energy loss caused by intermediate structures.

[0047] Optionally, the pulley assembly includes a drive pulley mounted on the output shaft of the first motor 310 and the output shaft of the second motor 320, a driven pulley mounted on the roller shafts of the first crushing roller 210 and the second crushing roller 220, and a transmission belt respectively sleeved between the drive pulley and the driven pulley. Through this transmission structure, when the first motor 310 and the second motor 320 are energized and started, the drive pulley drives the transmission belt to rotate, which in turn drives the driven pulley to rotate the crushing rollers, thereby achieving synchronous or differential operation of the two crushing rollers. This pulley assembly has a simple structure, stable transmission, and is easy to maintain and replace, making it suitable for the continuous operation requirements in crushing operations.

[0048] like Figure 4 As shown, in some embodiments, the silicon-chromium alloy crushing device of this application further includes a receiving trough 500 located below the crushing roller assembly 200 for collecting silicon-chromium alloy fragments that fall after crushing.

[0049] In this embodiment, a receiving trough 500 is provided below the crushing roller assembly 200 to collect the silicon-chromium alloy fragments generated during the crushing process. The receiving trough 500 is located below the crushing roller assembly 200 and is arranged close to the natural drop path of the material, allowing the crushed alloy fragments to smoothly enter the receiving trough 500, helping to reduce the random scattering of fragments and lowering the frequency of cleaning around the equipment. In practical applications, the receiving trough 500 is fixedly connected to the frame 100 to maintain its fixed position.

[0050] In some embodiments, a stop block 111 is provided on the side of the fixed base 110 near the sliding base 120 to form a contact limit when the sliding base 120 moves to prevent the sliding base 120 from being over-displaced.

[0051] In the above embodiment, by providing a stop block 111 on the side of the fixed base 110 near the sliding base 120, the movement range of the sliding base 120 can be effectively physically limited. The stop block 111 can be fixedly installed on the side of the fixed base 110 using bolts. When the sliding base 120 moves forward to a certain position under external force, its front end contacts the stop block 111, thereby restricting its continued sliding and providing structural protection.

[0052] In some embodiments, the feed inlet 601 is located at the top of the crushing box cover 600, the crushing box cover 600 is generally in the shape of a cover, and the bottom of the crushing box cover 600 is an open structure.

[0053] In this embodiment, the feed inlet 601 is located at the top of the crushing chamber cover 600, which adopts a shell-like design with an open bottom. This layout allows materials to enter the crushing area vertically from above, and the silicon-chromium alloy blocks fall naturally into the working area between the crushing roller assemblies 200 under gravity, thereby improving the stability of the feed and enhancing the crushing efficiency. The crushing chamber cover 600 provides a certain degree of enclosure and protection during the crushing process, effectively reducing material splashing and dust leakage, improving the cleanliness of the working environment, and reducing safety risks during equipment operation. Simultaneously, the open bottom design of the crushing chamber cover 600 facilitates the smooth flow of crushed materials into the receiving trough 500 below, reducing material blockage and facilitating continuous operation.

[0054] The usage process of the silicon-chromium alloy crushing device in this application embodiment is as follows:

[0055] Before using the silicon-chromium alloy crushing device according to this application embodiment, the operator should first disconnect the power supply and check the basic condition of the device. At this time, the inside of the crushing chamber 600 needs to be cleaned to remove any remaining foreign objects to prevent them from interfering with the operation of the rollers after entering the crushing zone. Then, check whether there are any adhering impurities on the surfaces of the first crushing roller 210 and the second crushing roller 220, and confirm that the crushing roller assembly 200 rotates flexibly and the sliding seat 120 can slide smoothly on the frame 100. In addition, the spring 410 and the limiting mechanism 420 should also be checked for proper functioning.

[0056] After the equipment inspection is completed, the operator can sequentially start the first motor 310 and the second motor 320 in the transmission assembly 300. The two motors drive the first crushing roller 210 and the second crushing roller 220 to rotate through the pulley assembly, respectively. At this time, the two rollers can run synchronously or be adjusted differentially according to the load difference. When the two rollers reach a stable speed, the silicon-chromium alloy block to be crushed is fed into the feed port 601 at the top of the crushing box 600. The material falls naturally into the biting area formed by the two rollers under the action of gravity, and the initial crushing is completed by the extrusion force generated by the rotating roller surface.

[0057] During the crushing process, the second crushing roller 220 is mounted on a sliding seat 120 that can slide back and forth. When encountering materials with large volume or high local strength, the sliding seat 120 will move backward under the action of external force. At this time, the spring 410 is compressed, generating an elastic restoring force, which then gradually pushes the sliding seat 120 back to its original position, thereby automatically adjusting the roller spacing and realizing a dynamic response to changes in material size. The entire adjustment process is constrained by the limiting structure in the limiting mechanism 420, and the sliding range is under control, which can prevent the spacing from exceeding the working requirements and causing a decrease in crushing performance.

[0058] The two crushing rollers are evenly distributed with axially spaced annular grooves on their surfaces. This structure helps to enhance the material's clamping force and reduce slippage. The crushed silicon-chromium alloy fragments will fall from the open area at the bottom of the crushing box 600 and directly into the receiving trough 500 located below, achieving centralized collection of fragments and reducing accumulation around the equipment. If abnormal noise or abnormal displacement of the sliding seat 120 is observed during operation, the position of the first limiting threaded collar 422 and the second limiting threaded collar 423 on the threaded limiting rod 421 can be changed by adjusting the limiting mechanism 420 after stopping the machine. This changes the position of the limiting plate 424 and adjusts the initial position of the spring 410, thus facilitating the continuation of crushing operations.

[0059] After the crushing operation is completed, the operator should turn off the power and then clean up any remaining material. At this time, check the surfaces of the crushing rollers 210 and 220 for wear and assess whether replacement is necessary. Simultaneously, check the elasticity of the spring 410 in the adjusting assembly 400; if any loss of elasticity or structural abnormalities are found, replace it promptly. Furthermore, check the secure connection of the stop block 111 on the side of the fixed seat 110 to prevent damage to the roller shaft due to uncontrolled displacement of the sliding seat 120 during subsequent use. These maintenance steps effectively improve the stability of the device's operation and its long-term reliability.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 application.

Claims

1. A silicon-chromium alloy breaking device, characterized by, It includes a frame, a crushing roller assembly mounted on the frame, a transmission assembly for driving the crushing roller assembly to rotate, and an adjustment assembly for adjusting the roller spacing of the crushing roller assembly. The crushing roller assembly includes a first crushing roller and a second crushing roller arranged in parallel front to back. A crushing box cover with a feed inlet is provided on the upper periphery of the crushing roller assembly and connected to the frame. The left and right ends of the first crushing roller's shaft are rotatably mounted on fixed seats on the frame. Two fixed seats are symmetrically fixed on the frame. The left and right ends of the second crushing roller's shaft are mounted on sliding seats on the frame. Two sliding seats are slidably disposed on the frame and located on the rear side of each fixed seat. A set of adjusting components is connected to the rear side of each sliding seat. The adjusting components include a spring and a limiting mechanism. One end of the spring is connected to the sliding seat to apply an elastic force to the sliding seat to automatically adjust the spacing and buffer the crushing impact force. The other end of the spring is connected to a limiting mechanism to limit the initial position of the spring. The transmission component is used to drive the first and second crushing rollers to rotate. The transmission component is a dual-motor belt drive component, capable of driving the first and second crushing rollers to rotate synchronously or differentially.

2. The silicon-chromium alloy breaking device of claim 1, wherein, The limiting mechanism includes a threaded limiting rod, a limiting plate passing through the threaded limiting rod, and a first limiting threaded collar and a second limiting threaded collar for adjusting the initial position of the spring. One end of the threaded limiting rod is connected to the frame, and the other end of the threaded limiting rod points towards the sliding seat. The first limiting threaded collar and the second limiting threaded collar are threadedly connected to the threaded limiting rod and abut against the limiting plate on the front and rear sides, respectively. The limiting plate is slidably connected to the frame. The rear end of the spring is fixedly connected to the front plate surface of the limiting plate, and the front end of the spring is fixedly connected to the rear side surface of the sliding seat.

3. The silicon-chrome alloy breaker of claim 1 or 2, wherein, The spring is a tension spring, and it is made of high-elasticity alloy steel 60Si2Mn or 50CrVA.

4. The silicon-chromium alloy crushing device according to claim 1, characterized in that, Both the first crushing roller and the second crushing roller have multiple annular grooves arranged at intervals along the axial direction on their roller surfaces. The annular grooves are used to enhance the clamping effect on the silicon-chromium alloy block and to restrict material slippage. The roller surfaces of the first crushing roller and the second crushing roller are made of alloy tool steel, which is heat-treated Cr12MoV or W6Mo5Cr4V2 steel.

5. The silicon-chromium alloy crushing device according to claim 1, characterized in that, The transmission assembly is installed on the first motor and the second motor, which are independently arranged on the left and right sides of the front of the frame. The first motor and the second motor are respectively connected to the first crushing roller and the second crushing roller through the pulley assembly, so as to drive the first crushing roller and the second crushing roller to rotate respectively.

6. The silicon-chromium alloy crushing device according to claim 1, characterized in that, It also includes a receiving trough located below the crushing roller assembly for collecting silicon-chromium alloy fragments that fall after crushing.

7. The silicon-chromium alloy crushing device according to claim 1, characterized in that, A stop block is provided on the side of the fixed seat near the sliding seat to form a contact limit when the sliding seat moves to prevent the sliding seat from excessive displacement.

8. The silicon-chromium alloy crushing device according to claim 1, characterized in that, The feed inlet is located at the top of the crushing box cover, which has an overall shell-like structure and an open bottom.

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