A cone crushing device

Abstract

The application discloses a conical crushing device, which comprises a shell, a protection mechanism for over-iron, a main shaft, a crushing movable toothed plate and a crushing fixed toothed plate. The main shaft drives the crushing movable toothed plate to perform eccentric rotation. The crushing fixed toothed plate is arranged outside the crushing movable toothed plate. The crushing fixed toothed plate comprises a first fixed toothed plate and a second fixed toothed plate. The first fixed toothed plate and the second fixed toothed plate are arranged to have the same size and structure. The outside of the first fixed toothed plate is connected with the inside of the second fixed toothed plate. The first fixed toothed plate and the second fixed toothed plate are detachably connected with the shell through an electric connection mechanism. The first fixed toothed plate and the second fixed toothed plate are arranged, so that when the fixed toothed plate is damaged or seriously worn by hard objects during production operation, the fixed toothed plate can be quickly replaced, the continuous operation capacity of the production line is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of crushing technology, and in particular to a cone crusher. Background Technology

[0002] The truss crusher is a widely used medium and fine crushing equipment in mining, metallurgy, and building materials industries. Its core structure consists of a moving cone, a fixed cone, a hydraulic system, and a drive unit. During operation, the motor drives the eccentric sleeve to rotate via the transmission shaft, causing the moving cone to perform an eccentric oscillating motion within the fixed cone's inner cavity. The ore is subjected to compression, shearing, and bending actions within the crushing chamber formed by the moving and fixed cones, gradually crushing it to the target particle size. This equipment adopts the principle of layered crushing, offering advantages such as high crushing efficiency, large processing capacity, and uniform finished product particle size. The hydraulic system can adjust the discharge port size in real time, achieving dynamic control of product particle size. It is also often equipped with an over-iron protection structure, allowing for remote monitoring of operating parameters, automatic fault diagnosis, and adjustment of the working mode through the control system. Despite the significant performance advantages of the truss crusher, the replacement process for its core wear-resistant component, the fixed tooth plate, remains cumbersome. As a key wear part that directly contacts the material, the fixed tooth plate requires regular maintenance and replacement to maintain equipment performance. In existing technologies, embedded mounting structures are often used to install the fixed tooth plate, which is encased in multiple layers of components. Replacement requires complex procedures such as disassembling the hydraulic locking cylinder, lifting the moving cone assembly, and removing multiple layers of liners. This process not only requires specialized lifting equipment but also demands operators with extensive disassembly and assembly experience, often resulting in prolonged equipment downtime. This design flaw directly impacts the continuous operation capability of the production line, and frequent replacement needs significantly increase maintenance costs, becoming a key factor restricting the improvement of overall equipment efficiency. Therefore, in the field of crushing technology, there is a need to propose a frustum crusher that can improve the continuous operation capability of the production line and reduce maintenance costs. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention provides a cone crusher, the main technical problem to be solved is how to improve the continuous operation capability of the production line and reduce maintenance costs.

[0004] To achieve the above objectives, the technical solution of this invention is implemented as follows: A cone crusher includes a housing, an overload protection mechanism, a main shaft, a moving crushing tooth plate, and a fixed crushing tooth plate. The main shaft drives the moving crushing tooth plate to rotate eccentrically. The fixed crushing tooth plate is disposed on the outer side of the moving crushing tooth plate. The fixed crushing tooth plate includes a first fixed tooth plate and a second fixed tooth plate. The first fixed tooth plate and the second fixed tooth plate are set to the same size and structure. The outer side of the first fixed tooth plate is fitted and connected to the inner side of the second fixed tooth plate. The first fixed tooth plate and the second fixed tooth plate are detachably connected to the housing through an electric connecting mechanism.

[0005] Preferably, the first fixed tooth plate is configured as four pieces, and the four first fixed tooth plates are connected to each other to form an approximately frustum-shaped mechanism. The second fixed tooth plate is also configured as four pieces, and the four second fixed tooth plates are respectively attached to the outer side of the corresponding first fixed tooth plate.

[0006] Preferably, the radius of the inner arc surface of the first fixed tooth plate is the same as the radius of the outer arc surface of the first fixed tooth plate, and the radius of the inner arc surface of the second fixed tooth plate is also the same as the radius of the outer arc surface of the second fixed tooth plate.

[0007] Preferably, the electric connection mechanism includes a liner, a rotary motor, and a rotary bolt. The liner, the first fixed tooth plate, and the second fixed tooth plate are each provided with a plurality of threaded holes in the middle that mate with the rotary bolt. The rotary bolt passes through the threaded holes and connects to the rotary motor.

[0008] Preferably, the upper part of the outer shell is provided with a feed inlet, and the lower part of the outer shell is provided with a discharge chamber in an annular shape, with one side of the discharge chamber communicating with the outside.

[0009] Preferably, a support block is provided between the four second fixed tooth plates, with the two sides of the support block respectively attached to the left and right sides of the second fixed tooth plates, and the inner side of the support block attached to the outer side of the first fixed tooth plate.

[0010] Preferably, both the support block and the outer side of the liner are connected to a telescopic mechanism.

[0011] Preferably, the outer casing includes an upper casing and a lower casing, the fixed toothed plate is connected to the inner side of the upper casing, the movable toothed plate is connected to the inner side of the lower casing, the overload protection mechanism includes a pressure sensor and a hydraulic telescopic cylinder, and the upper casing is telescopically connected to the lower casing through the hydraulic telescopic cylinder.

[0012] The beneficial effects of this invention are as follows: By setting a first fixed tooth plate and a second fixed tooth plate, the first fixed tooth plate is positioned inside for crushing operations. When the first fixed tooth plate is damaged, the first and second fixed tooth plates are lifted and separated by an electric connecting mechanism. This causes the first fixed tooth plate to fall due to gravity, allowing the operator to remove it from the upper feeding position. After the first fixed tooth plate is disassembled, the second fixed tooth plate moves downward to replace it for crushing operations, thus completing the replacement of the fixed tooth plate.

[0013] In summary, by setting the first fixed tooth plate and the second fixed tooth plate, this application enables the fixed tooth plate to be quickly replaced when it is damaged by hard objects or severely worn during production operations, thereby improving the continuous operation capability of the production line and reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a cone crusher according to an embodiment of this application; Figure 2 This is a schematic diagram of the connection structure between the first fixed tooth plate and the second fixed tooth plate in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the second fixed tooth plate after the first fixed tooth plate is disassembled in an embodiment of this application; Explanation of icon numbers: 1. Housing; 2. Overload protection mechanism; 3. Main shaft; 4. Crushing moving tooth plate; 5. Crushing stationary tooth plate; 6. Electric connection mechanism; 101. Feed inlet; 102. Discharge chamber; 103. Upper shell; 104. Lower shell; 201. Hydraulic telescopic cylinder; 202. Pressure sensor; 501. First fixed toothed plate; 502. Second fixed toothed plate; 503. Support block; 504. Telescopic mechanism; 601. Liner plate; 602. Rotary motor; 603. Rotary bolt; 604. Threaded hole. Detailed Implementation

[0015] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0016] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0017] Example 1 See attached document Figure 1-3This application provides a cone crusher, including a housing 1, an overload protection mechanism 2, a main shaft 3, a moving crushing tooth plate 4, and a fixed crushing tooth plate 5. The main shaft 3 drives the moving crushing tooth plate 4 to rotate eccentrically. The fixed crushing tooth plate 5 is disposed on the outer side of the moving crushing tooth plate 4. The fixed crushing tooth plate 5 includes a first fixed tooth plate 501 and a second fixed tooth plate 502. The first fixed tooth plate 501 and the second fixed tooth plate 502 are set to the same size and structure. The outer side of the first fixed tooth plate 501 is fitted and connected to the inner side of the second fixed tooth plate 502. The first fixed tooth plate 501 and the second fixed tooth plate 502 are detachably connected to the housing 1 through an electric connecting mechanism 6. This device, by setting up a first fixed toothed plate 501 and a second fixed toothed plate 502, allows the first fixed toothed plate 501 to be positioned inside for crushing operations. When the first fixed toothed plate 501 is damaged, both the first and second fixed toothed plates 501 and 502 are lifted, and an electric connecting mechanism 6 separates them. This allows the first fixed toothed plate 501 to fall under gravity, enabling the operator to remove it from the upper feeding position. After disassembly, the second fixed toothed plate 502 moves downwards to replace it for crushing, thus completing the toothed plate replacement. In summary, this device, by setting up the first and second fixed toothed plates 501, allows for rapid replacement of fixed toothed plates when they are damaged by hard objects or severely worn during production, improving the continuous operation capability of the production line and reducing maintenance costs.

[0018] Specifically, the first fixed tooth plate 501 is configured as four pieces, which are interconnected to form an approximately frustum-shaped mechanism. The second fixed tooth plate 502 is also configured as four pieces, each of which is attached to the outer side of its corresponding first fixed tooth plate 501. This device uses multiple first fixed tooth plates 501, allowing them to separate and fall off under gravity during disassembly, preventing them from becoming stuck above the crushing moving tooth plate 4 and difficult to remove.

[0019] Specifically, the radius of the inner arc surface of the first fixed tooth plate 501 is the same as the radius of the outer arc surface of the first fixed tooth plate 501, and the radius of the inner arc surface of the second fixed tooth plate 502 is also the same as the radius of the outer arc surface of the second fixed tooth plate 502. This device is configured such that the inner and outer arc surfaces of the first fixed tooth plate 501 and the second fixed tooth plate 502 have the same radius, allowing the first fixed tooth plate 501 and the second fixed tooth plate 502 to fit tightly and be fixed together, avoiding any cavity in the middle that would reduce strength.

[0020] Specifically, the electric connection mechanism 6 includes a liner 601, a rotary motor 602, and a rotating bolt 603. The liner 601, the first fixed toothed plate 501, and the second fixed toothed plate 502 each have several threaded holes 604 in their middle portions that mate with the rotating bolt 603. The rotating bolt 603 passes through the threaded holes 604 and connects to the rotary motor 602. This device controls the rotation of the rotating bolt 603 by using the rotary motor 602, allowing operators to easily disassemble the first fixed toothed plate 501 by controlling the rotary motor 602, thus making the device more convenient to use.

[0021] Specifically, the upper part of the outer shell 1 is provided with a feed inlet 101, and the lower part of the outer shell 1 is provided with a discharge chamber 102 in an annular shape. One side of the discharge chamber 102 is connected to the outside. The material enters from the feed inlet 101, and after being crushed, falls into the annular discharge chamber 102, and is continuously discharged from the discharge chamber 102 to the outside of the device.

[0022] Example 2 See attached document Figure 1-3 The difference between this embodiment and Embodiment 1 is that a support block 503 is provided between the four second fixed tooth plates 502. The two sides of the support block 503 are respectively attached to the left and right sides of the second fixed tooth plates 502, and the inner side of the support block 503 is attached to the outer side of the first fixed tooth plate 501. By providing the support block 503, this device can avoid gaps between the second fixed tooth plates 502, which would lead to uneven stress and reduced strength when the first fixed tooth plate 501 breaks, thus improving the service life of the device.

[0023] Specifically, both the support block 503 and the liner 601 are connected to telescopic mechanisms 504 on their outer sides. When the first fixed toothed plate 501 is disassembled and replaced with the second fixed toothed plate 502, the telescopic mechanism 504 on the outer side of the support block 503 retracts, and the telescopic mechanism 504 on the outer side of the liner 601 extends, causing the second fixed toothed plate 502 to converge inward and form an approximately frustum-shaped structure, making the operation of the second fixed toothed plate 502 more reliable.

[0024] Specifically, the outer casing 1 includes an upper casing 103 and a lower casing 104. The fixed toothed plate is connected to the inner side of the upper casing 103, and the movable toothed plate is connected to the inner side of the lower casing 104. The overload protection mechanism 2 includes a pressure sensor 202 and a hydraulic telescopic cylinder 201. The upper casing 103 is telescopically connected to the lower casing 104 via the hydraulic telescopic cylinder 201. By incorporating the pressure sensor 202 and the hydraulic telescopic cylinder 201, when a hard object is broken, the pressure sensor 202 sends a signal to control the hydraulic telescopic cylinder 201 to lift, releasing the hard object and preventing damage to the device. Simultaneously, when the first fixed toothed plate 501 is disassembled and replaced, the hydraulic telescopic cylinder 201 can control the upper casing 103 to lift both the first and second fixed toothed plates 501, facilitating disassembly and replacement.

[0025] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cone crusher, comprising a housing (1), an overload protection mechanism (2), a main shaft (3), a moving crushing tooth plate (4), and a fixed crushing tooth plate (5), wherein the main shaft (3) drives the moving crushing tooth plate (4) to rotate eccentrically, and the fixed crushing tooth plate (5) is disposed on the outer side of the moving crushing tooth plate (4), characterized in that, The crushing fixed tooth plate (5) includes a first fixed tooth plate (501) and a second fixed tooth plate (502). The first fixed tooth plate (501) and the second fixed tooth plate (502) are set to the same size and structure. The outer side of the first fixed tooth plate (501) is attached to the inner side of the second fixed tooth plate (502). The first fixed tooth plate (501) and the second fixed tooth plate (502) are detachably connected to the outer shell (1) through an electric connecting mechanism (6).

2. The cone crusher according to claim 1, characterized in that, The first fixed tooth plate (501) is configured as four pieces, and the four first fixed tooth plates (501) are connected to each other to form an approximately frustum-shaped mechanism. The second fixed tooth plate (502) is also configured as four pieces, and the four second fixed tooth plates (502) are respectively attached to the outer side of the corresponding first fixed tooth plate (501).

3. The cone crusher according to claim 2, characterized in that, The radius of the inner arc surface of the first fixed tooth plate (501) is the same as the radius of the outer arc surface of the first fixed tooth plate (501), and the radius of the inner arc surface of the second fixed tooth plate (502) is also the same as the radius of the outer arc surface of the second fixed tooth plate (502).

4. The cone crusher according to claim 3, characterized in that, The electric connection mechanism (6) includes a liner (601), a rotary motor (602), and a rotary bolt (603). The liner (601), the first fixed tooth plate (501), and the second fixed tooth plate (502) are each provided with a plurality of threaded holes (604) that mate with the rotary bolt (603) in the middle. The rotary bolt (603) passes through the threaded holes (604) and is connected to the rotary motor (602).

5. A cone crusher according to claim 4, characterized in that, The upper part of the outer shell (1) is provided with a feed inlet (101), and the lower part of the outer shell (1) is provided with a discharge chamber (102) in an annular shape. One side of the discharge chamber (102) is connected to the outside.

6. A cone crusher according to claim 5, characterized in that, A support block (503) is provided between the four second fixed tooth plates (502). The two sides of the support block (503) are respectively attached to the left and right sides of the second fixed tooth plates (502), and the inner side of the support block (503) is attached to the outer side of the first fixed tooth plate (501).

7. A cone crusher according to claim 6, characterized in that, The outer sides of the support block (503) and the liner (601) are respectively connected to telescopic mechanisms (504).

8. A cone crusher according to claim 1, characterized in that, The outer casing (1) includes an upper casing (103) and a lower casing (104). The fixed toothed plate is connected to the inner side of the upper casing (103), and the movable toothed plate is connected to the inner side of the lower casing (104). The overload protection mechanism (2) includes a pressure sensor (202) and a hydraulic telescopic cylinder (201). The upper casing (103) is telescopically connected to the lower casing (104) through the hydraulic telescopic cylinder (201).

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