A rapid foreign object detection and reset mechanism for a cone crusher

Abstract

This utility model relates to the field of crushing engineering machinery technology, and in particular to a rapid foreign object detection and reset mechanism for a cone crusher. It includes: a fixed cone structure with a crushing inlet at its top; a moving cone structure, including a crushing cone extending into the fixed cone structure, which crushes materials through its cooperation with the inner wall of the fixed cone structure; and a support frame, including a fixed frame and a movable frame connected to the fixed frame, with an elastic support assembly connecting the fixed frame and the movable frame. The elastic support assembly contains a vibration sensor that moves with the movable frame. The fixed cone structure is axially movable relative to the moving cone structure. A driving component connected to the fixed cone structure is fixed on the movable frame. When the vibration sensor detects an amplitude greater than a set value, it drives the fixed cone structure axially away from the moving cone structure by a set distance before resetting. This design improves the response speed of foreign object detection, discharge, and reset in the crusher, thus enhancing the reliability of the crusher.

Description

Technical Field

[0001] This utility model relates to the field of crushing engineering machinery technology, and in particular to a rapid foreign object detection and reset mechanism for a cone crusher. Background Technology

[0002] Cone crushers are widely used in the field of ore crushing, mainly for crushing ores, rocks, etc. They typically include a crushing chamber composed of a fixed cone and a moving cone, which is connected to the moving cone via a main shaft to support the rotating motion of the moving cone. During the circular motion of the moving cone, when the moving cone moves inward, the material is pressed into the crushing chamber and squeezed by the moving cone and the top cone. When the moving cone moves outward, the outlet size of the crushing chamber increases, and the crushed material is discharged. However, if foreign objects enter during the crushing process, it can cause blockage of the material or even pose a safety hazard. Therefore, how to detect foreign objects in the crusher has become a technical challenge.

[0003] In related technologies, foreign objects are often detected and reset using hydraulic systems. When the system detects an abnormal increase or fluctuation in pressure, it determines that a foreign object has been generated in the crushing chamber. Then, the height of the crushing chamber is adjusted upwards through the hydraulic system to allow large foreign objects to pass through. Once the foreign object has passed through, the system returns to its normal operating state.

[0004] However, when using a hydraulic system for detection, the reaction speed of the hydraulic system is limited by factors such as hydraulic oil flow rate and system pressure, which will cause a certain delay in the judgment process. This will cause the crusher to be unable to respond immediately when foreign objects enter, resulting in overload or damage to the equipment. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a rapid foreign object detection and reset mechanism for a cone crusher, which adopts structural improvements to improve the speed of foreign object detection and reset response.

[0006] According to a first aspect of this utility model, a rapid foreign object detection and reset mechanism for a cone crusher is provided, comprising: A fixed-sleeve cone structure, wherein the top of the fixed-sleeve cone structure has a crushing inlet, and the material to be crushed enters from the crushing inlet; A moving cone structure, comprising a crushing cone extending into the fixed sleeve cone structure, wherein the crushing cone rotates eccentrically inside the fixed sleeve cone structure under the drive of an external force, thereby crushing the material by cooperating with the inner wall of the fixed sleeve cone structure. A support frame, supported at the bottom of the moving cone structure, includes a fixed frame and a movable frame connected to the fixed frame. An elastic support assembly is connected between the fixed frame and the movable frame. The elastic support assembly has a vibration sensor that moves with the movable frame. The fixed conical structure is axially movable relative to the moving conical structure. The movable frame is also fixed with a driving component connected to the fixed conical structure. The driving component is configured to drive the fixed conical structure to move away from the moving conical structure axially by a set distance and then reset when the vibration sensor detects that the amplitude is greater than a set value.

[0007] Furthermore, the fixed cone structure includes an inner liner and a support sleeve connected to the inner liner, the moving cone structure includes a frame that is connected to the support sleeve, the support sleeve has a first guide post protruding toward the frame, the frame has a guide hole adapted to the first guide post, and the driving member is connected to the support sleeve.

[0008] Furthermore, an adjusting sleeve is provided between the inner liner and the support sleeve. The adjusting sleeve is fixedly connected to the inner liner, and an external thread is provided on the periphery of the adjusting sleeve. The support sleeve is screwed onto the external thread.

[0009] Furthermore, the fixed sleeve cone structure also includes a locking sleeve screwed onto the adjusting sleeve. The locking sleeve is disposed on the upper part of the support sleeve and is connected to the support sleeve by fasteners.

[0010] Furthermore, the moving cone structure also includes a main shaft, an eccentric sleeve rotatably connected to the main shaft, and a transmission component for driving the eccentric sleeve to rotate, with the crushing cone connected to the eccentric sleeve.

[0011] Furthermore, the top of the main shaft also has a bowl-shaped bearing, and the crushing cone is connected to the bowl-shaped bearing.

[0012] Furthermore, the frame also has a lubrication tube extending into the spindle, which is connected to the cup-shaped bearing and the inner wall of the eccentric sleeve.

[0013] Furthermore, the elastic support assembly includes a second guide post with one end fixed to the movable frame and the other end movable on the fixed frame, and also includes a support spring sleeved on the second guide post, and the vibration sensor is fixed to the second guide post.

[0014] Furthermore, the vibration sensor is a velocity sensor, a displacement sensor, or an acceleration sensor.

[0015] Furthermore, the movable frame also has a discharge hopper, which is configured to correspond to the discharge ports of the moving cone structure and the fixed cone structure.

[0016] The beneficial effects of this utility model are as follows: This utility model identifies abnormal vibrations of the crusher by setting a vibration sensor on the elastic support component, and achieves rapid discharge and repositioning of foreign objects by driving the fixed cone structure away from the moving cone structure through the driving component. Compared with the prior art, the vibration identification method has a faster identification speed and response speed, which can reduce damage to the equipment and improve the service life of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the rapid foreign object detection and reset mechanism for the cone crusher in this embodiment of the present invention; Figure 2 This is a cross-sectional structural schematic diagram of the cone crusher in an embodiment of this utility model; Figure 3 As an embodiment of this utility model Figure 2 A magnified schematic diagram of the structure at point A in the diagram; Figure 4 This is a cross-sectional view of the moving cone structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the support frame in an embodiment of the present utility model; Figure 6 This is a cross-sectional view of the support frame in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Fixed cone structure; 11. Crushing inlet; 12. Inner liner; 13. Support sleeve; 131. First guide post; 14. Adjusting sleeve; 141. External thread; 15. Locking sleeve; 151. Fastener; 2. Moving cone structure; 21. Crushing cone; 22. Frame; 221. Guide hole; 23. Main shaft; 24. Eccentric sleeve; 25. Transmission component; 26. Cup bearing; 27. Lubrication pipe; 3. Support frame; 31. Fixed frame; 32. Movable frame; 321. Discharge hopper; 33. Elastic support assembly; 331. Second guide post; 332. Support spring; 34. Drive component. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should 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," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] 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 be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] like Figures 1 to 6 The cone crusher foreign object rapid detection and reset mechanism shown includes a fixed cone structure 1, a moving cone structure 2, and a support frame 3. Please refer to the details. Figure 1 and Figure 2 In an embodiment of this utility model, the top of the fixed-sleeve cone structure 1 has a crushing inlet 11, and the material to be crushed enters from the crushing inlet 11; such as Figure 2 As shown, the fixed cone structure 1 has a funnel-shaped interior, and the material entering from the crushing inlet 11 enters the interior of the fixed cone structure 1. The moving cone structure 2 includes a crushing cone 21 extending into the interior of the fixed cone structure 1, and under the drive of external force, the crushing cone 21 performs an eccentric rotational motion inside the fixed cone structure 1, and achieves the crushing of the material by cooperating with the inner wall of the fixed cone structure 1; after the material enters the crushing chamber, through the eccentric rotational motion of the crushing cone 21, the side wall of the crushing cone 21 crushes the material when it is close to the inner wall of the fixed cone structure 1, and the crushed material falls from the space between the lower part of the crushing cone 21 and the lower part of the fixed cone structure 1 when the side wall of the crushing cone 21 moves away from the inner wall of the fixed cone structure 1.

[0024] Please continue to refer to Figure 1In this embodiment of the invention, the structure supported at the bottom of the moving cone includes a fixed frame 31 and a movable frame 32 connected to the fixed frame 31. An elastic support assembly 33 is connected between the fixed frame 31 and the movable frame 32. The elastic support assembly 33 has a vibration sensor that moves with the movable frame 32. It should be noted that due to the eccentric rotation of the crushing cone 21, the movable frame 32 will vibrate slightly following the rotation of the moving cone. It should also be noted that in this embodiment of the invention, the supporting force of the elastic support assembly 33 is sufficient to maintain the stability of the crushing process. The vibration sensor will exhibit a periodic vibration pattern following the eccentric rotation of the crushing cone 21. That is, when the crushing cone 21 is biased towards the vibration sensor, the amplitude at that point is larger. This method is used to detect whether the crusher is operating normally.

[0025] In this embodiment of the invention, the fixed sleeve cone structure 1 is axially movable relative to the moving cone structure 2. A driving component 34 connected to the fixed sleeve cone structure 1 is fixed on the movable frame 32. The driving component 34 is configured to drive the fixed sleeve cone structure 1 axially away from the moving cone structure 2 and then reset when the vibration sensor detects an amplitude greater than a set value. When a foreign object enters the crushing chamber, such as a metal block that the crushing cone 21 cannot crush, the crushing cone 21 will be stuck by the foreign object during its eccentric rotation. Due to the inertia of the crushing cone 21, the entire device will shake more violently, which will be immediately detected by the vibration sensor. At this time, the driving component 34 drives the fixed sleeve cone structure 1 away from the crushing cone 21. The increased distance between the crushing cone 21 and the fixed sleeve cone structure 1 causes the foreign object to slide down under its own weight, and then resets to continue the crushing operation.

[0026] In the above embodiments, the abnormal vibration of the crusher is identified by a vibration sensor installed on the elastic support component 33, and the foreign object is quickly discharged and reset by driving the fixed cone structure 1 away from the moving cone structure 2 by the drive component 34. Compared with the prior art, the vibration identification method has a faster identification speed and response speed, which can reduce damage to the equipment and improve the service life of the equipment.

[0027] Based on the above embodiments, in the embodiments of this utility model, the specific structure of the fixed sleeve cone is as follows: Figure 2As shown, the fixed cone structure 1 includes an inner sleeve 12 and a support sleeve 13 connected to the inner sleeve 12. The moving cone structure 2 includes a frame 22 that is connected to the support sleeve 13. The support sleeve 13 has a first guide post 131 protruding towards the frame 22. The frame 22 has a guide hole 221 adapted to the first guide post 131. The driving member 34 is connected to the support sleeve 13. It should be noted that in the embodiments of this utility model, the weight of the fixed cone structure 1 itself can meet the needs of normal crushing, and the fixed cone structure 1 will not move due to normal crushing. In this embodiment of the utility model, the first guide post 131 provides a guiding function for the movement of the fixed cone structure 1. Of course, it should also be noted that in some embodiments of this utility model, the structure of the driving member 34 can be of various forms, such as using a hydraulic cylinder.

[0028] Please continue to refer to Figure 2 and Figure 3 In this embodiment of the invention, the size of the crushed particles and the size of the discharge port are also adjusted by improving the fixed sleeve cone structure 1. Please refer to the following for details. Figure 3 An adjusting sleeve 14 is also provided between the inner liner 12 and the support sleeve 13. The adjusting sleeve 14 is fixedly connected to the inner liner 12, and the outer periphery of the adjusting sleeve 14 is provided with an external thread 141. The support sleeve 13 is screwed onto the external thread 141. With this arrangement, when the adjusting sleeve 14 rotates relative to the support sleeve 13, the relative distance between the adjusting sleeve 14 and the support sleeve 13 in the height direction changes. For example, when the adjusting sleeve 14 moves upward, it will drive the inner liner 12 to move upward, thereby increasing the distance between the inner liner 12 and the crushing cone 21, thus enabling the crushing of larger particle sizes. Under this working condition, the distance of the discharge port also increases, and vice versa.

[0029] Please continue to refer to Figure 3 In an embodiment of this utility model, to further improve the reliability of the position adjustment of the support sleeve 13, the fixed sleeve cone structure 1 further includes a locking sleeve 15 screwed onto the adjusting sleeve 14. The locking sleeve 15 is disposed on the upper part of the support sleeve 13 and connected to the support sleeve 13 by a fastener 151. With this arrangement, the tension between the fastener 151 and the support sleeve 13 can increase the friction between the external thread 141 of the support sleeve 13 and the adjusting sleeve 14, thereby improving the fixing reliability of the support sleeve 13.

[0030] In the embodiments of this utility model, the specific structural form of the moving cone structure 2 is as follows: Figure 4 As shown, the moving cone structure 2 also includes a main shaft 23, an eccentric sleeve 24 rotatably connected to the main shaft 23, and a transmission component 25 for driving the eccentric sleeve 24 to rotate. The crushing cone 21 is connected to the eccentric sleeve 24. It should be noted that the transmission component 25 can be as follows: Figure 4The helical gear shown in the figure meshes with the gear at the bottom of the eccentric sleeve 24, thereby enabling the eccentric sleeve 24 to rotate on the main shaft 23.

[0031] In embodiments of this utility model, to further improve the reliability of the support for the crushing cone 21, such as... Figure 4 As shown, the top of the main shaft 23 also has a bowl-shaped bearing 26, and the crushing cone 21 is connected to the bowl-shaped bearing 26. In the embodiment of this utility model, a spherical surface is connected to the bottom of the crushing center. This spherical surface makes rolling contact with the bowl-shaped bearing 26, thereby reducing the friction of the crushing cone 21 during eccentric rotation and providing more stable support, thus improving the crushing effect.

[0032] Please continue to refer to Figure 4 In this embodiment of the invention, to improve lubrication, the frame 22 is further provided with a lubrication pipe 27 extending into the spindle 23. The lubrication pipe 27 is connected to the cup-shaped bearing 26 and the inner wall of the eccentric sleeve 24, respectively. This arrangement allows the lubricating oil in the lubrication pipe 27 to evenly enter the cup-shaped bearing 26 and the position where the inner wall of the eccentric sleeve 24 contacts the spindle 23, thereby reducing friction and improving the reliability of mechanical operation.

[0033] In the embodiments of this utility model, the specific structure of the support frame 3 is as follows: Figure 5 As shown, the elastic support assembly 33 includes a second guide post 331, one end of which is fixed to the movable frame 32 and the other end of which is movable relative to the fixed frame 31. It also includes a support spring 332 sleeved on the second guide post 331, and a vibration sensor is fixed to the second guide post 331. The second guide post 331 provides guidance for the vibration of the movable frame 32, thereby improving the stability of the support frame 3. It should be noted that the vibration sensor can be located at the end of the second guide post 331, which allows for direct detection of vibration and provides a certain degree of protection for the sensor. It should also be noted that the vibration sensor can have various structural forms, such as a velocity sensor, a displacement sensor, or an acceleration sensor.

[0034] Please continue to refer to Figure 5 and Figure 6 In an embodiment of this utility model, the movable frame 32 also has a discharge hopper 321, which is correspondingly arranged with the discharge ports of the movable cone structure 2 and the fixed sleeve cone structure 1. Figure 6 As shown, the discharge hopper 321 provides guidance and collection for the material discharged from the crushing chamber discharge port. Since the discharge hopper 321 is set on the movable frame 32, the material falls from the discharge hopper 321 while following the vibration of the crushing cone 21 during the vibration process, which helps to prevent material blockage.

[0035] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mechanism for foreign object detection and reset in a cone crusher, characterized in that, Comprise: Fixed cone structure, the top of the fixed cone structure has a broken entrance, the material to be broken enters from the broken entrance; The eccentric rotation movement of the broken cone in the fixed cone structure is driven by the cooperation with the inner wall of the fixed cone structure, and the eccentric rotation movement of the broken cone in the fixed cone structure is driven by the cooperation with the inner wall of the fixed cone structure. Support frame, supported on the bottom of the moving cone structure, comprising a fixed frame and a movable frame connected with the fixed frame, the elastic support assembly is connected between the fixed frame and the movable frame, the vibration sensor in the elastic support assembly moves along with the movable frame; Wherein, the fixed cone structure is arranged axially movable relative to the moving cone structure, the movable frame is further fixed with a driving member connected with the fixed cone structure, the driving member is configured to drive the fixed cone structure to move away from the moving cone structure by a certain distance when the vibration sensor detects that the amplitude is greater than a set value, and then reset.

2. The foreign matter rapid detection and reset mechanism of the cone crusher according to claim 1, wherein The fixed cone structure comprises an inner sleeve and a support sleeve connected with the inner sleeve, the moving cone structure comprises a rack connected with the support sleeve, the support sleeve has a first guide column protruding towards the rack, the rack has a guide hole matched with the first guide column, and the driving member is connected with the support sleeve.

3. The foreign matter rapid detection and reset mechanism of the cone crusher according to claim 2, wherein The inner sleeve and the support sleeve further have an adjusting sleeve, the adjusting sleeve is fixedly connected with the inner sleeve, the adjusting sleeve is provided with external threads on the periphery, and the support sleeve is screwed on the external threads.

4. The foreign matter rapid detection and reset mechanism of the cone crusher according to claim 3, wherein The fixed cone structure further comprises a locking sleeve screwed on the adjusting sleeve, the locking sleeve is arranged on the upper part of the support sleeve, and the locking sleeve is connected with the support sleeve through a fastener.

5. The foreign matter rapid detection and reset mechanism of the cone crusher according to claim 2, wherein The moving cone structure further comprises a main shaft, an eccentric sleeve rotatably connected with the main shaft, and a transmission member for driving the eccentric sleeve to rotate, and the broken cone is connected with the eccentric sleeve.

6. The foreign matter rapid detection and reset mechanism of the cone crusher according to claim 5, wherein The top of the main shaft further has a bowl-shaped bearing, and the broken cone is connected with the bowl-shaped bearing.

7. The foreign matter rapid detection and reset mechanism of the cone crusher according to claim 6, wherein The rack further has a lubricating pipe extending into the interior of the main shaft, and the lubricating pipe is in communication with the bowl-shaped bearing and the inner wall of the eccentric sleeve, respectively.

8. The foreign matter rapid detection and reset mechanism of the cone crusher according to claim 1, wherein The elastic support assembly comprises a second guide column with one end fixed to the movable frame and the other end movably arranged on the fixed frame, and a supporting spring sleeved on the second guide column, and the vibration sensor is fixed to the second guide column.

9. A tramp material detection and reset mechanism for a cone crusher according to claim 8, characterized in that, The vibration sensor is a speed sensor, a displacement sensor or an acceleration sensor.

10. The foreign object quick detection and reset mechanism for a cone crusher of claim 1, wherein, The movable frame is further provided with a discharge hopper corresponding to the discharge port of the movable cone structure and the fixed sleeve cone structure.

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