A gypsum ore crusher

Abstract

This utility model belongs to the field of crusher technology, specifically relating to a gypsum ore crusher, including a feeding buffer mechanism. The feeding buffer mechanism consists of a rotating unloading frame, a linkage mechanism, and a damping mechanism. The rotating unloading frame is rotatably installed vertically below the discharge port of the jaw crusher. The rotating unloading frame is rotatably installed on the jaw crusher and connected to the middle end of the straight rod connecting arm in the linkage mechanism. The two ends of the straight rod connecting arm are respectively rotatably connected to rocker arm one and rocker arm two. Both rocker arm one and rocker arm two are rotatably connected to a damping mechanism, which is rotatably connected to the jaw crusher. When the rotating unloading frame rotates under the impact of the ore, the linkage mechanism composed of two curved arm rocker arm mechanisms drives two sets of damping mechanisms to extend and retract, achieving effective buffering protection for the discharged ore and effectively protecting both the material and the equipment. Furthermore, the two sets of damping mechanisms work together to cancel out damping force fluctuations, ensuring that the total resistance experienced by the rotating unloading frame remains constant, guaranteeing the stability of the buffering protection.

Description

Technical Field

[0001] This utility model belongs to the field of crusher technology, specifically relating to a gypsum ore crusher. Background Technology

[0002] In the field of gypsum ore processing, the jaw crusher is the core equipment for coarse and medium crushing of ore, and is widely used in gypsum building material production, chemical raw material purification, and other scenarios. Gypsum ore is characterized by high brittleness and low hardness (Mohs hardness 1.5-2). After crushing, it needs to be discharged through the jaw crusher's discharge port to a conveyor belt or transfer hopper. The buffering effect of the discharge process directly affects the integrity of the material and the stability of equipment operation. Currently, the industry's solutions for jaw crusher discharge buffering mainly rely on two traditional structures: rubber plate buffers or spring buffers. However, both have the following problems:

[0003] First, rubber sheet cushioning solutions have limited buffering capacity and are prone to material breakage and equipment wear due to impact failure. Traditional rubber sheet cushioning typically involves laying a 50-100mm thick rubber sheet below the discharge port of a jaw crusher, utilizing the elastic deformation of rubber to absorb the impact energy of the ore. However, after long-term use, the rubber sheet is prone to cracking and aging, resulting in a significant decrease in cushioning performance. The impact force that is not fully absorbed will be directly transmitted to the conveyor belt or hopper below, causing the conveyor belt joints to loosen and the inner wall of the hopper to wear. At the same time, the violent collision between the ore and the rubber sheet will generate a large amount of fine powder, which does not meet the requirements for particle size uniformity in scenarios such as gypsum board production. An additional screening process is required to separate the fine powder, increasing production energy consumption and costs.

[0004] Second, the damping force of the spring buffer solution fluctuates greatly, resulting in poor buffering stability and making it unsuitable for scenarios with fluctuating discharge volumes. To improve the buffering effect, some companies use spring buffers instead of rubber plates, absorbing impact through spring compression. However, the elastic coefficient of the spring buffer is fixed. When the discharge volume of the jaw crusher fluctuates, the spring compression increases sharply, and the buffering force increases instantaneously, which can easily cause the ore to bounce and rebound, or even slide off the sides of the buffer. Conversely, when the discharge volume decreases, the spring compression is insufficient, and the buffering force is too small to effectively absorb the impact. More importantly, the spring is in a high-frequency compression-rebound state for a long time, which can easily lead to fatigue deformation, causing further imbalance in the buffering force. This not only fails to protect materials and equipment but may also cause safety accidents due to spring breakage. Utility Model Content

[0005] To address the above problems, the purpose of this utility model is to provide a gypsum ore crusher that solves the problems of the existing jaw crusher's rubber plate buffer scheme for gypsum ore unloading, which has limited buffering capacity, is prone to aging and failure leading to material breakage and equipment wear, and the spring buffer scheme has large damping force fluctuations, cannot adapt to the fluctuation of unloading volume, and has no material anti-detachment design. Both types of schemes are difficult to achieve stable buffering, and the frequent maintenance and uneven consumption of impact energy affect production efficiency and cost.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gypsum ore crusher, comprising a feeding buffer mechanism, which is installed on a jaw crusher. The feeding buffer mechanism consists of a rotating unloading frame, a linkage mechanism, and a damping mechanism. The rotating unloading frame is rotatably installed vertically below the discharge port of the jaw crusher. The rotating unloading frame includes a rotating shaft. Multiple partitions are evenly installed around the axis of the rotating shaft on its curved side surface. The rotating shaft is rotatably installed on the jaw crusher, and both ends of the rotating shaft are fixedly connected to the middle ends of the straight rod connecting arms in the linkage mechanism. The two ends of the straight rod connecting arms are respectively rotatably connected to one end of rocker arm one and rocker arm two of the same structural dimensions via pins. The other ends of rocker arm one and rocker arm two are rotatably connected to one end of a damping mechanism via pins. The other end of the damping mechanism is rotatably connected to the jaw crusher via pins.

[0007] The beneficial effects of this utility model are as follows: When the rotating unloading frame rotates continuously under the impact of the ore discharged from the jaw crusher's discharge port, the linkage mechanism composed of two crank-arm rocker mechanisms drives two sets of damping mechanisms to extend and retract, thereby achieving effective buffering protection for the discharged ore and effectively protecting the materials and equipment; moreover, the two sets of damping mechanisms work together to cancel out the damping force fluctuations, ensuring that the total resistance experienced by the rotating unloading frame remains constant, thus guaranteeing the stability of the buffering protection.

[0008] To ensure that the rotary unloading rack can stably receive and cushion materials;

[0009] As a further improvement to the above technical solution: the rotating shaft is located on one side of the feed inlet of the jaw crusher.

[0010] The beneficial effect of this improvement is that as the material is discharged from the discharge port, the baffle is driven to rotate continuously by the impact of the material.

[0011] To ensure the safety of unloading;

[0012] As a further improvement to the above technical solution: side plates are installed at both ends of the partition, and the diameter of the side plates is not less than the vertical distance between the end of the partition and the axis of rotation.

[0013] The beneficial effects of this improvement are: the side plate acts as an isolation plate, preventing materials on the partition from sliding off from both sides of the partition and damaging the linkage mechanism and damping mechanism, thus causing device failure.

[0014] To ensure that the damping mechanism can provide stable damping support for the rotary unloading rack under the drive of the linkage mechanism during rotation;

[0015] As a further improvement to the above technical solution: the phase difference between the first rocker arm and the second rocker arm is 180°.

[0016] The beneficial effects of this improvement are as follows: through the 180° phase difference design, since the damping force is proportional to the extension and contraction speed of the damper, the damping force fluctuations of the two sets of dampers will be completely staggered. When the first set of dampers is at its minimum speed due to being at a dead point, the second set of dampers is exactly at its maximum speed. When the first set of dampers is at its maximum speed, the second set of dampers is at its minimum speed. Finally, the total resistance after superposition, which is the sum of the two sets of damping forces, remains stable.

[0017] In order to effectively absorb the impact potential energy of the material on the rotating unloading frame through the use of a damping mechanism;

[0018] As a further improvement to the above technical solution: the damping mechanism includes a cylinder body, a piston rod is slidably installed in the cylinder body, one end of the piston rod is connected to a piston, the piston is installed inside the cylinder body, oil nozzles are connected to the ends of the cylinder body on both sides of the piston, the inner cavity of the cylinder body is connected to an oil storage cylinder through the oil nozzles, and connecting ears are provided at the ends of the cylinder body and the piston rod.

[0019] The beneficial effects of this improvement are as follows: when the piston rod drives the piston to move in the cylinder, the damping oil in the inner cavity of the cylinder flows between the oil reservoir and the cylinder through the oil nozzle. The resistance encountered by the flow of the damping oil effectively absorbs the rotational potential energy generated when the rotating unloading rack is impacted by the material.

[0020] To effectively ensure the cylinder's sealing performance;

[0021] As a further improvement to the above technical solution: the inner wall of the connection between the cylinder and the piston rod is provided with an annular groove adapted to fit the sealing ring.

[0022] The beneficial effect of this improvement is that the sealing ring can play an effective sealing role during the extension and retraction of the piston rod, preventing the damping oil from leaking out.

[0023] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the feeding buffer mechanism in this utility model;

[0026] Figure 3 This is a cross-sectional view of the damping mechanism in this utility model;

[0027] In the diagram: 100, Jaw crusher; 200, Feeding buffer mechanism; 1, Rotary unloading frame; 11, Rotating shaft; 12, Partition plate; 13, Side plate; 2, Linkage mechanism; 21, Straight rod connecting arm; 22, Rocker arm one; 23, Rocker arm two; 3, Damping mechanism; 31, Cylinder body; 32, Piston rod; 33, Piston; 34, Sealing ring; 35, Oil nozzle; 36, Oil reservoir. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0029] Example 1:

[0030] like Figure 1As shown in Figure 3: A gypsum ore crusher includes a feeding buffer mechanism 200, which is mounted on a jaw crusher 100. The feeding buffer mechanism 200 consists of a rotating unloading frame 1, a connecting rod mechanism 2, and a damping mechanism 3. The rotating unloading frame 1 is rotatably mounted vertically below the discharge port of the jaw crusher 100. The rotating unloading frame 1 includes a rotating shaft 11, and multiple partitions 12 are evenly installed on the curved side surface of the rotating shaft 11 around its axis. The rotating shaft 11 is rotatably mounted on the jaw crusher 100. The two ends of the straight connecting arm 21 in the linkage mechanism 2 are fixedly connected to the middle end. The two ends of the straight connecting arm 21 are respectively rotatably connected to one end of rocker arm 22 and rocker arm 23 of the same structural size through pins. The other ends of rocker arm 22 and rocker arm 23 are rotatably connected to one end of a damping mechanism 3 through pins. The other end of the damping mechanism 3 is rotatably connected to the jaw crusher 100 through pins. When the rotating unloading frame 1 rotates continuously under the impact of the ore discharged from the discharge port of the jaw crusher 100, it drives two sets of damping mechanisms through the linkage mechanism 2 composed of two curved rocker arm mechanisms. The structure 3 extends and retracts to effectively buffer and protect the discharged ore, thus protecting both materials and equipment. Furthermore, the two sets of damping mechanisms 3 work together to cancel out damping force fluctuations, ensuring that the total resistance experienced by the rotating unloading frame 1 remains constant, guaranteeing the stability of the buffer protection. The rotating shaft 11 is located on one side of the discharge port of the jaw crusher 100. As material is discharged from the discharge port, the baffle 12 is impacted by the material, causing the rotating shaft 11 to rotate continuously. Side plates 13 are installed at both ends of the baffle 12, and the diameter of the side plates 13 is not less than the distance from the end of the baffle 12 to... The vertical distance between the axes of the rotating shaft 11 and the side plate 13 serves as an isolation to prevent materials on the partition 12 from sliding off from both sides of the partition 12 and damaging the linkage mechanism 2 and the damping mechanism 3, thus causing device malfunction. The phase difference between the rocker arm 1 22 and the rocker arm 23 is 180°. Through the 180° phase difference design, since the damping force is proportional to the extension and contraction speed of the damper, F = C·v, where C is the damping coefficient, the damping force fluctuations of the two sets of dampers will also be completely staggered. When the first set of dampers is at its minimum speed due to being at a dead point, the second set of dampers is exactly at its maximum speed.When the first group of speeds is at its maximum, the second group of speeds is at its minimum, and the final total resistance, i.e., the sum of the two groups of damping forces, remains stable. The damping mechanism 3 includes a cylinder body 31, in which a piston rod 32 is slidably mounted. One end of the piston rod 32 is connected to a piston 33, which is installed inside the cylinder body 31. Oil nozzles 35 are connected to the ends of the cylinder body 31 on both sides of the piston 33. The inner cavity of the cylinder body 31 is connected to an oil reservoir 36 through the oil nozzles 35. Both the ends of the cylinder body 31 and the piston rod 32 are equipped with... Equipped with a connecting lug, when the piston rod 32 drives the piston 33 to move within the cylinder 31, the damping oil in the inner cavity of the cylinder 31 flows between the oil reservoir 36 and the cylinder 31 through the oil nozzle 35. The resistance encountered by the damping oil flow effectively absorbs the rotational potential energy generated when the rotating unloading rack 1 is impacted by material. An annular groove is provided on the inner wall of the connection between the cylinder 31 and the piston rod 32 to accommodate and embed a sealing ring 34. The sealing ring 34 effectively seals the piston rod 32 during extension and retraction, preventing damping oil leakage.

[0031] The beneficial effects of this utility model are as follows: When the rotating unloading frame 1 rotates continuously under the impact of the ore discharged from the discharge port of the jaw crusher 100, the linkage mechanism 2, which is composed of two crank arm rocker mechanisms, drives the two sets of damping mechanisms 3 to extend and retract, thereby achieving effective buffer protection for the discharged ore and effective protection for materials and equipment; and the two sets of damping mechanisms 3 work together to make the damping force fluctuations cancel each other out, so that the total resistance of the rotating unloading frame 1 remains constant, ensuring the stability of the buffer protection.

[0032] The working principle of this technical solution is as follows: the gypsum ore crushed by the jaw crusher 100 is discharged from the discharge port and falls directly onto the partition plate 12 of the rotating unloading frame 1. The ore's own weight and the falling impact force push the partition plate 12 to rotate clockwise around the rotating shaft 11. At the same time, the side plate 13 prevents the ore from sliding off the sides of the partition plate, thus avoiding damage to the linkage mechanism 2 and the damping mechanism 3.

[0033] When the rotating shaft 11 rotates, the straight rod connecting arms 21 at both ends rotate synchronously, causing the rocker arm 1 22 and rocker arm 23 at both ends to swing back and forth. Since the phase difference between rocker arm 1 22 and rocker arm 23 is 180°, when rocker arm 1 22 pushes the piston rod 32 of the damping mechanism 3 forward to extend, rocker arm 23 pulls the piston rod 32 of the other set of damping mechanisms 3 backward to retract. The two sets of rocker arms move in completely opposite directions, ensuring that the damping mechanism alternates in extension and retraction.

[0034] When the piston rod 32 extends or retracts, it drives the piston 33 to slide inside the cylinder 31. When the piston rod extends, the piston 33 squeezes the damping oil inside the cylinder 31. The damping oil slowly flows into the oil storage cylinder 36 through the oil nozzle 35. The flow resistance forms a damping force, which absorbs the rotational potential energy generated by the impact of the ore. When the piston rod retracts, the damping oil in the oil storage cylinder 36 flows back to the cylinder 31 through the oil nozzle 35 to prepare for the next buffering. Since the two sets of damping mechanisms 3 extend and retract alternately, when the damping force of one set is at its maximum, the damping force of the other set is at its minimum. The total damping force is always constant, which avoids sudden increases or decreases in the rotation speed of the rotating unloading rack 1 and ensures that the ore falls smoothly.

[0035] As the rotating shaft 11 continues to rotate, when the partition plate 12 that receives the ore rotates to the lower position, the ore slides off the partition plate 12 under the action of gravity to the subsequent conveyor belt or silo; the empty partition plate 12 continues to rotate with the rotating shaft to the upper position to receive the next batch of ore discharged from the discharge port, forming a "receiving-buffering-discharging" cycle process, continuously achieving stable buffering and unloading of gypsum ore.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A gypsum ore crusher characterised in that: The device includes a feeding buffer mechanism (200), which is mounted on a jaw crusher (100). The feeding buffer mechanism (200) consists of a rotating unloading frame (1), a linkage mechanism (2), and a damping mechanism (3). The rotating unloading frame (1) is rotatably mounted vertically below the discharge port of the jaw crusher (100). The rotating unloading frame (1) includes a rotating shaft (11). Multiple partitions (12) are evenly installed around the axis of the rotating shaft (11) on its curved side surface. The rotating shaft (11) is rotatably mounted on the jaw crusher (100), and the two ends of the rotating shaft (11) are fixedly connected to the middle end of the straight rod connecting arm (21) in the linkage mechanism (2). The two ends of the straight rod connecting arm (21) are respectively rotatably connected to one end of rocker arm one (22) and rocker arm two (23) with the same structural size through pins. The other ends of rocker arm one (22) and rocker arm two (23) are rotatably connected to one end of a damping mechanism (3) through pins. The other end of the damping mechanism (3) is rotatably connected to the jaw crusher (100) through pins.

2. A gypsum ore crusher as claimed in claim 1, characterised in that: The rotating shaft (11) is located on one side of the discharge port of the jaw crusher (100).

3. The gypsum ore crusher according to claim 1, characterized in that: Both ends of the partition (12) are equipped with side plates (13), and the diameter of the side plates (13) is not less than the vertical distance between the end of the partition (12) and the axis of the rotating shaft (11).

4. A gypsum ore crusher as claimed in claim 1, characterised in that: The phase difference between the first rocker arm (22) and the second rocker arm (23) is 180°.

5. A gypsum ore crusher as claimed in claim 1, characterised in that: The damping mechanism (3) includes a cylinder (31), a piston rod (32) is slidably installed inside the cylinder (31), a piston (33) is connected to one end of the piston rod (32), the piston (33) is installed inside the cylinder (31), and oil nozzles (35) are connected to the ends of the cylinder (31) on both sides of the piston (33). The inner cavity of the cylinder (31) is connected to the oil reservoir (36) through the oil nozzles (35). Both the cylinder (31) and the piston rod (32) are provided with connecting ears.

6. A gypsum ore crusher as claimed in claim 5, characterised in that: The inner wall of the connection between the cylinder (31) and the piston rod (32) is provided with an annular groove adapted to fit the sealing ring (34).

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