High strength side door crusher

Abstract

The utility model discloses a high strength side door breaker belongs to material crushing equipment technical field, the breaker includes the breaker outer box, the feeding hopper, driving arrangement and the crushing knife group, and its innovation lies in the detachable high strength side door and adjusting device of additional, the breaker outer box side portion is equipped with the door frame of first bolt hole, and the high strength side door is rigid board, and through the fastening connection of second bolt hole and bolt assembly on its outer edge connecting plate and door frame, has realized convenient disassembly and high strength anti -vibration, and the inner surface fixed with the side door is arc fixed knife plate, and forms the crushing chamber opposite with the crushing knife group, and the adjusting device sets up at the outer surface of outer box, can drive the crushing knife group lower extreme to be close to or away from fixed knife plate to accurately adjust the crushing clearance, the utility model solves the problem that the traditional breaker side door strength is insufficient, and the maintenance is inconvenient and the discharge granularity is not accurate, and the reliability, maintenance efficiency and product quality of equipment have been improved obviously.

Description

Technical Field

[0001] This utility model belongs to the technical field of material crushing equipment, and in particular relates to a high-strength side-gate crusher. Background Technology

[0002] As a general-purpose material crushing equipment, crushers are widely used in many industries such as mining, metallurgy, and chemical industry. They are used to crush block or granular raw materials to the required particle size and are one of the indispensable key equipment in industrial production.

[0003] In the existing technology, the structural design of the crusher, especially the structure of its side walls or inspection doors, is directly related to the overall strength, ease of maintenance and crushing effect of the equipment, but the existing technology also has some shortcomings.

[0004] For example, the high-efficiency hammer crusher adopts an integral welded box structure, which ensures the strength of the main body, but when the internal hammers or liners need to be replaced or become blocked, maintenance is extremely inconvenient, requiring a lot of disassembly work from the top or the other end, which is time-consuming and labor-intensive.

[0005] For example, crushers with maintenance doors have hinged side doors on the side of the housing. While this improves maintainability, the hinge connection and simple door lock structure have obvious drawbacks: First, after being subjected to the severe vibrations and impacts generated during the crushing process for a long time, the hinges and door lock mechanisms are prone to deformation or fatigue damage, resulting in the door not closing properly, creating safety hazards and dust leakage; Second, such side doors are usually only used as maintenance passages, and their structural strength is limited, making them unsuitable as load-bearing components of the crusher's working chamber, thus restricting the optimization of the overall machine structure design.

[0006] In summary, the existing crushers have the following main shortcomings:

[0007] (1) When using a crusher with integral welding or fixed sidewalls, the process of internal maintenance, replacement of vulnerable parts or clearing blockages is cumbersome and the work efficiency is low.

[0008] (2) The side door of the crusher with traditional hinged side door is difficult to withstand continuous vibration and impact, and is prone to deformation and sealing failure. In addition, the door itself has limited strength and cannot provide effective structural support and pressure for the crushing chamber.

[0009] (3) Existing side door designs usually only consider their opening and maintenance functions, and fail to integrate them with the core working components of the crusher. They fail to fully utilize their functional potential as chamber walls, and there is room for further improvement in the overall structure integration and performance.

[0010] Therefore, there is an urgent need in this field for a new type of crusher structure that can significantly improve the structural strength and stability of the side gate and the whole machine while ensuring excellent ease of maintenance. Utility Model Content

[0011] Based on the problems of poor maintenance convenience, insufficient strength and stability of the side gate structure, and the single function of the side gate that are not integrated with the core working components, as mentioned in the background art, this utility model aims to provide a high-strength side gate crusher.

[0012] This crusher is designed to solve the following specific technical problems:

[0013] (1) How to make the side door of the crusher easy to disassemble for maintenance while having sufficient structural strength to withstand the severe vibration and impact during crushing operations.

[0014] (2) How to make the side door not only a maintenance passage, but also an effective load-bearing component and functional part of the crushing chamber, thereby improving the rigidity and stability of the whole machine structure.

[0015] (3) How to optimize the overall layout of the crusher to achieve convenient and reliable adjustment of the discharge particle size.

[0016] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0017] A high-strength side-gate crusher includes a crusher casing, a feeding hopper, a drive unit, and a crushing blade assembly. The key feature is that it also includes a detachable high-strength side gate and an adjustment device.

[0018] The feeding hopper is located on the top of the outer casing of the crusher and is used to feed the material to be crushed. It is preferably equipped with an openable dust cover to prevent dust from escaping during operation.

[0019] The drive unit is located on the outer surface of the crusher's outer casing, and its power output shaft extends into the casing to drive the crushing blade assembly to rotate at high speed, serving as the power source for the crushing operation.

[0020] The side of the crusher casing is provided with an integrally formed or firmly welded door frame, which constitutes the mounting base of the side door, and multiple first bolt holes are regularly opened on the door frame.

[0021] The high-strength side door is the core improvement of this solution. It is a rigid plate structure with sufficient thickness to fundamentally guarantee its structural strength. The outer surface of the side door is fixed with a side door handle for easy handling and installation. Multiple connecting plates are fixed on the outer edge of the side facing the door frame. The connecting plates have second bolt holes corresponding to the first bolt holes on the door frame. By using bolt assemblies that pass through the first and second bolt holes, the high-strength side door can be firmly and detachably fixed to the door frame. This circumferentially distributed multiple bolt connection method creates a connection strength and reliability far exceeding that of traditional hinged doors, effectively resisting vibration and impact, and ensuring a tight connection between the side door and the housing.

[0022] Furthermore, to improve the convenience and accuracy of installation, a positioning structure is provided at the joint surface between the high-strength side door and the door frame, such as at least one raised positioning block and a matching positioning groove. This structure can achieve pre-positioning and centering of the side door before tightening the bolts, ensuring accurate alignment of the bolt holes and sharing some of the shear stress.

[0023] Furthermore, to ensure the airtightness of the crushing chamber and prevent dust leakage, a sealing ring is also installed at the joint surface between the high-strength side door and the door frame. When the bolt assembly is tightened, the sealing ring is compressed to achieve a tight seal.

[0024] Furthermore, to maximize the overall strength of the side door, the connecting plate and the high-strength side door are preferably integrally formed, or fixedly connected by a full welding process, thereby eliminating weak points at the connection.

[0025] A fixed blade plate is fixedly installed on the inner surface of the high-strength side door, transforming the side door from a simple doorway into a functional component.

[0026] Furthermore, the fixed blade is an arc-shaped metal block, the arc surface of which is precisely calculated and machined to match the rotation trajectory of the crushing blade assembly, thereby forming an efficient and uniform crushing gap between the two.

[0027] The crushing blade assembly is located inside the outer casing of the crusher. Its blades or hammers are arranged opposite to the fixed blade plate to form a crushing chamber, in which the material is crushed by impact and shearing.

[0028] Furthermore, the upper end of the shredder assembly is connected to the drive shaft of the drive device, forming the active rotating end, while its lower end is connected to the adjustment end of the adjustment device.

[0029] The adjustment device is located on the outer surface of the crusher casing. Its adjustment end is connected to the lower end of the crushing blade assembly. By operating this device, the lower end of the crushing blade assembly can be driven to move closer to or further away from the fixed blade plate, thereby precisely changing the minimum gap between the two, i.e. the size of the discharge port.

[0030] Furthermore, the adjustment device specifically includes a spacing adjustment part and a locking part. The spacing adjustment part (such as a lead screw and nut mechanism, hydraulic push rod, etc.) is responsible for performing precise displacement adjustment, while the locking part (such as a locking nut, hydraulic lock, etc.) securely locks the spacing after the spacing adjustment is completed, ensuring that the crushed particle size remains stable under continuous vibration.

[0031] Compared with the prior art, the high-strength side-gate crusher provided by this utility model has the following significant advantages:

[0032] (1) The side door is detachably connected to the connecting plate by a circumferentially distributed bolt assembly.

[0033] This design combines the convenient opening function of traditional hinged doors, facilitating internal maintenance and tool replacement, with a rigid connection that provides structural strength and vibration resistance far exceeding that of traditional hinged doors, fundamentally solving the persistent problems of easy deformation and incomplete closure of traditional hinged doors.

[0034] (2) The fixed blade plate is directly fixed to the inner surface of the high-strength side door, making the side door an active functional component and load-bearing structure of the crushing chamber. This integrated design not only simplifies the overall structure of the machine, but also greatly enhances the overall rigidity and stability of the crushing chamber in the working state, making the relative position between the fixed blade and the moving blade more reliable, which helps to improve crushing efficiency and product quality.

[0035] (3) The lower end of the crushing blade assembly is directly linked by an external adjustment device, which realizes stepless and precise adjustment of the discharge port size. With the locking mechanism, it can ensure that the discharge particle size remains stable under long-term high-intensity operation, thus meeting the fine requirements of different users for the finished product particle size.

[0036] (4) Thanks to the uniform clamping force brought by the rigid connection, combined with the pre-embedded sealing ring, the side door and the door frame are tightly sealed, effectively preventing dust leakage, improving the working environment, and eliminating the safety hazards caused by the loose door.

[0037] In summary, this utility model, through its innovative high-strength functional side door design, successfully achieves the best balance between ease of maintenance, structural strength, and operational precision, providing a high-performance and reliable advanced crushing equipment. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the appearance of the crusher described in this utility model;

[0039] Figure 2 These are components related to high-strength side doors;

[0040] Figure 3 This is a rear view of the crusher;

[0041] Figure 4 It is a cross-sectional view of the crusher;

[0042] In the diagram, 1. Crusher outer casing; 101. Door frame; 2. High-strength side door; 201. Connecting plate; 202. Bolt assembly; 203. Side door handle; 3. Feed hopper; 4. Drive device; 5. Adjustment device; 6. Fixed blade plate; 7. Crushing blade assembly. Detailed Implementation

[0043] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0044] 1. Crusher outer casing; 101. Door frame; 2. High-strength side door; 201. Connecting plate; 202. Bolt assembly; 203. Side door handle; 3. Feed hopper; 4. Drive device; 5. Adjustment device; 6. Fixed blade plate; 7. Crushing blade assembly.

[0045] like Figure 1 , 2 As shown in Figures 3 and 4, the high-strength side-door crusher provided by this utility model mainly includes a crusher outer casing 1, a high-strength side door 2, a feeding hopper 3, a drive device 4, an adjustment device 5, a fixed blade plate 6, and a crushing blade assembly 7.

[0046] The outer casing 1 of the crusher is the basic support structure of the entire equipment. It is welded from thick steel plates and has sufficient rigidity and strength. On one side of the casing, there is a rectangular door frame 101 integrally formed with the casing. The plane of the door frame 101 is precision machined to ensure flatness, and multiple first bolt holes are evenly opened on its circumference.

[0047] The high-strength side door 2 is a rectangular high-strength steel plate that matches the dimensions of the door frame 101. Its thickness is significantly greater than that of traditional inspection doors to ensure its rigidity as a main load-bearing component. Figure 2 As shown, a side door handle 203 is fixedly installed in the middle of the outer surface of the side door 2 for easy carrying and installation. On the outer edge of the side door 2 facing the door frame 101, multiple connecting plates 201 are welded. These connecting plates 201 are firmly connected to the body of the side door 2 through a full welding process. Second bolt holes are opened on them, and their positions and numbers correspond completely to the first bolt holes on the door frame 101. By using bolt assemblies 202 to pass through the aligned first and second bolt holes and tighten them, the high-strength side door 2 can be tightly and firmly fixed to the door frame 101 to form a rigid connection.

[0048] To further improve the ease of installation and sealing, a raised positioning block is machined at the joint surface between the side door 2 and the door frame 101, and a matching positioning groove is machined at the corresponding position on the door frame 101. When installing the side door, the positioning block can be pre-aligned by embedding it into the positioning groove before tightening the bolt assembly 202. In addition, a sealing groove is opened on the joint surface of the door frame 101, and a rubber sealing ring is embedded to ensure the sealing effect after the door is closed.

[0049] The fixed blade 6 is an arc-shaped high-manganese steel wear-resistant block, which is fixedly installed on the inner surface of the high-strength side door 2 by internal hex bolts, and its arc-shaped working surface is precision machined.

[0050] The feeding hopper 3 is welded to the top of the outer casing 1 of the crusher, and its inlet is fitted with an openable dust cover via a hinge to prevent dust from being violently emitted during feeding.

[0051] The driving device 4, such as Figure 1 and Figure 3 As shown, it typically includes a motor and a reducer, which are fixedly mounted on the top or side of the outer casing 1 of the crusher via a base. Its drive shaft runs horizontally through the casing wall of the outer casing 1 of the crusher and is supported by a bearing seat.

[0052] The shredder assembly 7, such as Figure 4 As shown in the cross-sectional view, it is set inside the outer casing 1 of the crusher, and its upper end is fixedly installed on the drive shaft of the drive device 4 by means of key connection, etc., and rotates at high speed together with it. The blade ends of the crushing blade group 7 are opposite to the arc surface of the fixed blade plate 6, and the two form the main crushing chamber.

[0053] The adjusting device 5, such as Figure 3 and Figure 4 As shown, the device is located on the back of the outer casing 1 of the crusher or on the side opposite to the side door. In this embodiment, the device can be a precision mechanism with a handwheel forming the adjustment end. It is hinged to the lower end of the crushing blade assembly 7 through a linkage mechanism. Rotating the handwheel can push or pull the lower end of the crushing blade assembly 7, causing it to swing around the upper drive shaft as the fulcrum, thereby changing the minimum gap between the crushing blade assembly 7 and the fixed blade plate 6. After adjustment, the position can be fixed by tightening the locking part of the screw mechanism to prevent loosening during vibration.

[0054] The following example, using a specific application scenario, illustrates the working process of this utility model:

[0055] An environmental recycling company uses this crusher to crush recycled waste plastic bottles. It needs to adjust the output particle size from 15 mm to 8 mm according to subsequent process requirements.

[0056] The operation process is as follows:

[0057] (1) The operator uses tools to loosen and remove all bolt assemblies 202 in sequence, and then holds the side door handle 203 and pulls it outward smoothly so that the positioning block on the side door 2 comes out of the positioning groove of the door frame 101. The entire high-strength side door 2 can then be removed. At this time, the inside of the crusher is fully exposed, which is convenient for tool replacement, cleaning or inspection. This process does not require disassembling any other complex parts, which is convenient and efficient.

[0058] (2) The operator first loosens the locking part of the adjusting device 5, and then slowly turns the handwheel clockwise. Through the screw drive, the lower end of the crushing blade group 7 is pushed closer to the fixed blade plate 6. At this time, the scale indication on the equipment can be observed, or the gap can be measured through the inspection hole with a feeler gauge until the gap is adjusted to the target value of 8 mm. After the adjustment is in place, tighten the locking nut in the opposite direction to lock the screw position firmly, so as to ensure that the gap will not change during subsequent violent vibration.

[0059] (3) Align the high-strength side door 2 with the door frame 101 through the positioning block and positioning groove, and then use the bolt assembly 202 and torque wrench to tighten all the bolts evenly to the specified torque in diagonal order. At this time, the sealing ring is fully compressed to achieve sealing. Close the cover of the feeding hopper 3 and start the drive device 4. The drive device 4 drives the crushing blade group 7 to rotate at high speed.

[0060] (4) Feed the waste plastic bottles into the feeding hopper 3. After the material enters the crushing chamber, it is violently impacted and sheared by the high-speed rotating crushing blade group 7, and further squeezed between the crushing blade group 7 and the fixed blade plate 6. When the material is crushed to the discharge port setting value of less than 8 mm in size, it passes through the gap under the force of gravity and the push of subsequent materials and is discharged from the bottom of the crusher, completing the crushing operation.

[0061] Throughout the process, the high-strength side door 2 is rigidly connected to the box body through the circumferential multi-point bolt assembly 202, which has extremely high strength and stability. It effectively resists the impact and vibration during the crushing process. It not only ensures the reliability and safety of the equipment in long-term operation, but also ensures the long-term stability of the crushing gap as the mounting base of the fixed blade plate 6, thereby ensuring the uniformity of the output particle size.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength side-gate crusher, comprising a crusher casing, a feeding hopper, a drive unit, and a crushing blade assembly, characterized in that: It also includes a detachable, high-strength side door and an adjustment mechanism; The feeding hopper is located on the top of the crusher's outer casing, and the driving device is located on the outer surface of the crusher's outer casing, which drives the crushing blade assembly to rotate. The side of the outer casing of the crusher is provided with a door frame, and the door frame is provided with a plurality of first bolt holes; The high-strength side door is a rigid plate structure, and a side door handle is fixed on its outer surface. Multiple connecting plates are fixed on the outer edge of the side facing the door frame. The connecting plates are provided with second bolt holes corresponding to the first bolt holes. The high-strength side door is detachably fixed to the door frame by bolt assemblies that pass through the first bolt holes and the second bolt holes. A fixed blade plate is fixedly installed on the inner surface of the high-strength side door; The crushing blade assembly is installed inside the outer casing of the crusher and is arranged opposite to the fixed blade plate to form a crushing chamber; The adjustment device is installed on the outer surface of the crusher casing, and its adjustment end is connected to the lower end of the crushing blade assembly to drive the lower end of the crushing blade assembly to move closer to or away from the fixed blade plate.

2. The high-strength side-gate crusher according to claim 1, characterized in that, The high-strength side door and the door frame are provided with at least one protruding positioning block and a matching positioning groove at the joint surface, so as to pre-position and center during installation.

3. The high-strength side-gate crusher according to claim 1 or 2, characterized in that, A sealing ring is also installed at the joint surface between the high-strength side door and the door frame.

4. The high-strength side-gate crusher according to claim 1, characterized in that, The connecting plate and the high-strength side door are integrally formed or fixedly connected by welding.

5. The high-strength side-gate crusher according to claim 1, characterized in that, The fixed blade plate is an arc-shaped metal block, and its arc surface is adapted to the rotation trajectory of the crushing blade assembly.

6. The high-strength side-gate crusher according to claim 1, characterized in that, The adjustment device includes a spacing adjustment part and a locking part. The spacing adjustment part drives the lower end of the crushing blade assembly to move closer to or away from the fixed blade plate. The locking part locks the spacing after the spacing adjustment is completed.

7. The high-strength side-gate crusher according to claim 1, characterized in that, The upper end of the shredder assembly is connected to the drive shaft of the drive device, and the lower end is connected to the adjustment end of the adjustment device.

8. The high-strength side-gate crusher according to claim 1, characterized in that, The feeding hopper is equipped with an openable and closable dustproof cover.

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