Device for preventing moving cone from rotating unidirectionally

Abstract

The utility model belongs to the technical field of devices for preventing a moving cone from rotating, and particularly relates to a device for preventing the moving cone from rotating unidirectionally, which comprises a cone crusher, a mounting frame, an eccentric shaft, a mounting shaft, a support frame and a fixed round frame, the support frame is fixedly connected inside the cone crusher, and the fixed round frame is fixedly connected to the upper end face of the support frame. The mounting frame is fixedly connected to the lower end face of the cone crusher, the eccentric shaft is rotationally connected to the upper end face of the mounting frame, the mounting shaft is fixedly connected to the upper end face of the eccentric shaft, a transmission gear is rotationally connected into the mounting frame, and the upper end face of the transmission gear is fixedly connected with the lower end face of the eccentric shaft. According to the utility model, the limiting degree of the device to the movable cone under no-load rotation can be correspondingly adjusted by adjusting the output power of the added air pump, so that the situation that the movable cone gallops during no-load rotation can be avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of devices for preventing the rotation of a moving cone, specifically a unidirectional device for preventing the rotation of a moving cone. Background Technology

[0002] A cone crusher is a highly efficient medium and fine crushing equipment widely used in industries such as mining, metallurgy, construction, chemicals, cement, and ceramics. It achieves crushing of materials through the principle of layered crushing. A power source drives an eccentric shaft inside the crusher to rotate, which in turn drives the moving cone on the eccentric shaft sleeve to rotate eccentrically. The material is crushed into smaller particles through the squeezing and friction between the moving and fixed cones. However, in conventional cone crushers, various reasons can cause the moving cone to rotate in the opposite direction during operation, affecting the lifespan of the motor system, gear transmission, and other structures within the crusher. Therefore, some improved cone crushers incorporate a backstop device to prevent the moving cone from rotating in the opposite direction during operation.

[0003] However, existing unidirectional cone crushers have a large moving cone weight and a large inertia when rotating under no-load, which causes the moving cone to rotate too fast during no-load operation. This causes wear on the transmission system and lubrication system of the moving cone structure inside the equipment, thus affecting its service life. Summary of the Invention

[0004] The purpose of this invention is to provide a device for preventing the rotating cone from rotating in one direction. By adjusting the output power of the added air pump, the limiting degree of the moving cone under no-load rotation is adjusted accordingly, thus preventing the moving cone from running away when rotating under no-load.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a device for preventing the rotation of a moving cone in one direction is provided, comprising a cone crusher, a mounting frame, an eccentric shaft, a mounting shaft, a support frame, and a fixed circular frame. The support frame is fixedly connected inside the cone crusher, the fixed circular frame is fixedly connected to the upper end face of the support frame, the mounting frame is fixedly connected to the lower end face of the cone crusher, the eccentric shaft is rotatably connected to the upper end face of the mounting frame, and the mounting shaft is fixedly connected to the upper end face of the eccentric shaft.

[0006] A limiting disc is fixedly connected to the outer wall of the mounting shaft. A wear-resistant end cap is installed on the upper end face of the limiting disc. An annular groove is opened inside the fixing frame. Multiple limiting rod assemblies are installed inside the fixing frame. Each limiting rod assembly includes a fixing sleeve and a limiting rod. The fixing sleeve is fixedly connected inside the annular groove. The outer wall of the limiting rod is slidably connected to the inner wall of the fixing sleeve. A return spring is fixedly connected to the upper end face of the limiting rod. The upper end face of the return spring is fixedly connected to the inner wall of the fixing sleeve. The lower end face of the limiting rod is in contact with the outer wall of the wear-resistant end cap.

[0007] The fixed sleeve has multiple through grooves inside, all of which are connected to the annular groove. An air pump is installed on the outer wall of the cone crusher. An air supply pipe is fixedly connected to the output port of the air pump. The end of the air supply pipe away from the air pump is fixedly connected to the outer wall of the fixed circular frame, and the air supply pipe is connected to the annular groove inside the fixed circular frame.

[0008] Optionally, a transmission gear is rotatably connected inside the mounting bracket, the upper end face of the transmission gear is fixedly connected to the lower end face of the eccentric shaft, a fixing rod is fixedly connected inside the mounting bracket, a locking tooth is rotatably connected to the upper end face of the fixing rod, a baffle is fixedly connected to the lower end face of the locking tooth, a torsion spring is fixedly connected to the outer wall of the baffle, the torsion spring is sleeved on the outer wall of the fixing rod and the lower end face of the torsion spring is fixedly connected to the outer wall of the fixing rod, and the outer wall of the locking tooth is slidably connected to the outer wall of the transmission gear.

[0009] Optionally, a pressure sensor is installed inside the annular groove, and a control panel is installed on the outer wall of the cone crusher. Both the pressure sensor and the air pump are electrically connected to the control panel.

[0010] Optionally, a transmission bevel gear is rotatably connected inside the mounting bracket, and a driven bevel gear is fixedly connected to the lower end face of the transmission gear, wherein the driven bevel gear and the transmission bevel gear mesh and drive each other.

[0011] Optionally, a drive motor is mounted on the outer wall of the mounting bracket, the output end of the drive motor is fixedly connected to the outer wall of the transmission bevel gear, and the drive motor is electrically connected to the control panel.

[0012] Optionally, a movable cone is fixedly connected to the outer wall of the mounting shaft, and a fixed cone is fixedly connected to the inside of the cone crusher, with the outer wall of the movable cone corresponding to the inner wall of the fixed cone.

[0013] Optionally, a feed inlet is fixedly connected to the upper end face of the cone crusher, and a support foot is fixedly connected to the lower end face of the cone crusher.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention, by adding a fixed circular frame inside the crusher and a limiting disc on the mounting shaft, allows the limiting disc inside the fixed circular frame to rotate eccentrically under no-load conditions. The wear-resistant end cap mounted on the limiting disc continuously contacts the limiting rod assembly installed on the inner wall of the fixed circular frame. By controlling the air pressure output of the air pump to regulate the air pressure in the regulating ring groove, the limiting rod on the limiting rod assembly requires a certain amount of power to retract into the fixed sleeve. The output power of the air pump can be appropriately increased according to the rotational speed of the moving cone under no-load conditions, increasing the pressure required for the limiting rod to retract, thus limiting the rotation of the limiting disc and slowing down the rotational speed of the moving cone through external force. The overall structural design allows the invention to adjust the degree of limitation on the moving cone under no-load conditions by adjusting the output power of the added air pump, preventing the moving cone from running away during no-load rotation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the moving cone and the fixed cone of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the fixed circular frame of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the limiting disc of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the fixing sleeve of this utility model;

[0024] Figure 8 This is a schematic diagram of the transmission bevel gear of this utility model;

[0025] Figure 9 This utility model Figure 8 A magnified structural diagram of point A in the middle.

[0026] In the diagram: 1. Feed inlet; 2. Cone crusher; 3. Air pump; 4. Control panel; 5. Support leg; 6. Drive motor; 7. Air supply pipe; 8. Support frame; 9. Mounting frame; 10. Eccentric shaft; 11. Wear-resistant end cap; 12. Fixed cone; 13. Mounting shaft; 14. Moving cone; 15. Fixed circular frame; 16. Limiting rod assembly; 161. Fixed sleeve; 162. Through groove; 163. Return spring; 164. Limiting rod; 17. Limiting disc; 18. Air pressure sensor; 19. Annular groove; 20. Transmission gear; 21. Driven bevel gear; 22. Transmission bevel gear; 23. Locking tooth; 24. Baffle; 25. Fixed rod; 26. Torsion spring. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] The present invention provides a unidirectional device for preventing the rotation of a moving cone. Please refer to the following description. Figures 1 to 9A device for preventing the rotation of a moving cone in one direction includes a cone crusher 2, a mounting frame 9, an eccentric shaft 10, a mounting shaft 13, a support frame 8, and a fixed circular frame 15. The support frame 8 is fixedly connected to the inside of the cone crusher 2, the fixed circular frame 15 is fixedly connected to the upper end face of the support frame 8, the mounting frame 9 is fixedly connected to the lower end face of the cone crusher 2, the eccentric shaft 10 is rotatably connected to the upper end face of the mounting frame 9, and the mounting shaft 13 is fixedly connected to the upper end face of the eccentric shaft 10.

[0032] A limiting disc 17 is fixedly connected to the outer wall of the mounting shaft 13. A wear-resistant end cap 11 is installed on the upper end face of the limiting disc 17. An annular groove 19 is opened inside the fixing frame 15. Multiple limiting rod assemblies 16 are installed inside the fixing frame 15. Each limiting rod assembly 16 includes a fixing sleeve 161 and a limiting rod 164. The fixing sleeve 161 is fixedly connected inside the annular groove 19. The outer wall of the limiting rod 164 is slidably connected to the inner wall of the fixing sleeve 161. A return spring 163 is fixedly connected to the upper end face of the limiting rod 164. The upper end face of the return spring 163 is fixedly connected to the inner wall of the fixing sleeve 161. The lower end face of the limiting rod 164 is in contact with the outer wall of the wear-resistant end cap 11.

[0033] The fixed sleeve 161 has multiple through grooves 162 inside, all of which communicate with the annular groove 19. An air pump 3 is installed on the outer wall of the cone crusher 2. An air supply pipe 7 is fixedly connected to the output port of the air pump 3. The end of the air supply pipe 7 away from the air pump 3 is fixedly connected to the outer wall of the fixed circular frame 15, and the air supply pipe 7 communicates with the annular groove 19 inside the fixed circular frame 15. When the limiting disc 17 rotates eccentrically, it rotates inside the fixed circular frame 15. Simultaneously, due to the inclined setting of the limiting disc 17, the higher side of the wear-resistant end cap 11 installed on the limiting disc 17 continuously contacts the limiting rod assembly 16 installed inside the fixed circular frame 15 during eccentric rotation. This forces the limiting rod 164 on the limiting rod assembly 16 into the fixed sleeve 161, ensuring that the limiting rod 164 inside the limiting rod assembly 16 always applies a certain limiting force to the limiting disc 17. The structural design can limit the rotation of the moving cone 14 by providing a certain limiting force to the limiting disc 17; the through groove 162 and the annular groove 19 are interconnected, so that the air pump 3 injects high-pressure gas into the interior of the annular groove 19 through the air supply pipe 7, thereby increasing the air pressure intensity inside the annular groove 19; by setting the through groove 162, the limiting rod 164 needs greater pressure to retract into the interior of the fixed sleeve 161, thereby allowing the limiting rod 164 to adjust the restriction of the limiting disc 17.

[0034] In this embodiment of the utility model, please refer to Figures 1 to 9The mounting bracket 9 is internally connected to a transmission gear 20, the upper end face of the transmission gear 20 is fixedly connected to the lower end face of the eccentric shaft 10, the mounting bracket 9 is internally fixedly connected to a fixing rod 25, the upper end face of the fixing rod 25 is rotatably connected to a locking tooth 23, the lower end face of the locking tooth 23 is fixedly connected to a baffle 24, the outer wall of the baffle 24 is fixedly connected to a torsion spring 26, the torsion spring 26 is sleeved on the outer wall of the fixing rod 25 and the lower end face of the torsion spring 26 is fixedly connected to the outer wall of the fixing rod 25, and the outer wall of the locking tooth 23 is slidably connected to the outer wall of the transmission gear 20. Under the torque provided by the torsion spring 26, the outer wall of the locking tooth 23 is always engaged with the teeth of the transmission gear 20. When the eccentric shaft 10 rotates, the transmission gear 20 rotates clockwise. Since the teeth of the transmission gear 20 are set in a clockwise direction, the teeth of the transmission gear 20 will push the locking tooth 23 to rotate slightly counterclockwise. Then, under the torque of the torsion spring 26, it will rotate back and engage with the next tooth of the transmission gear 20. When the eccentric shaft 10 rotates in the reverse direction, the transmission gear 20 rotates in the reverse direction. Due to the torque limitation of the torsion spring 26, the locking tooth 23 and the teeth of the transmission gear 20 are locked, which can prevent the moving cone 14 from reversing during operation.

[0035] In this embodiment of the utility model, please refer to Figures 1 to 9 A pressure sensor 18 is installed inside the annular groove 19, and a control panel 4 is installed on the outer wall of the cone crusher 2. Both the pressure sensor 18 and the air pump 3 are electrically connected to the control panel 4 so that the air pump 3 can be controlled through the control panel 4. The pressure sensor 18 can detect the air pressure intensity inside the annular groove 19 in real time, and the detected data can be displayed in real time through the control panel 4, so as to know in time how much air pressure value inside the annular groove 19 should be adjusted to achieve the corresponding limiting force, thereby improving the adjustment accuracy of this utility model.

[0036] In this embodiment of the utility model, please refer to Figures 1 to 9 The mounting bracket 9 has a rotatable transmission bevel gear 22 inside, and a driven bevel gear 21 is fixedly connected to the lower end face of the transmission gear 20. The driven bevel gear 21 and the transmission bevel gear 22 mesh and drive each other. The transmission bevel gear 22 and the driven bevel gear 21 are meshed and driven, and rotating the transmission bevel gear 22 can drive the driven bevel gear 21 to rotate.

[0037] In this embodiment of the utility model, please refer to Figures 1 to 9 A drive motor 6 is mounted on the outer wall of the mounting bracket 9. The output end of the drive motor 6 is fixedly connected to the outer wall of the transmission bevel gear 22. The drive motor 6 is electrically connected to the control panel 4. The control panel 4 controls the operation of the drive motor 6, which drives the transmission bevel gear 22 inside the mounting bracket 9 to rotate, thereby driving the driven bevel gear 21 to rotate, and then driving the eccentric shaft 10 to rotate, so as to provide power for the rotation of the moving cone 14, the mounting shaft 13, and the eccentric shaft 10.

[0038] In this embodiment of the utility model, please refer to Figures 1 to 9 A movable cone 14 is fixedly connected to the outer wall of the mounting shaft 13, and a fixed cone 12 is fixedly connected inside the cone crusher 2. The outer wall of the movable cone 14 corresponds to the inner wall of the fixed cone 12. When the movable cone 14 rotates, it can squeeze and grind the stone between the outer wall of the movable cone 14 and the inner wall of the fixed cone 12.

[0039] In this embodiment of the utility model, please refer to Figures 1 to 9 The upper end face of the cone crusher 2 is fixedly connected to the feed port 1, and the lower end face of the cone crusher 2 is fixedly connected to the support foot 5. The feed port 1 is used to add the stone to be crushed into the cone crusher 2 for crushing; the support foot 5 provides support for this utility model.

[0040] Working principle: When this utility model is in use, the drive motor 6 is started by controlling the control panel 4, which drives the transmission bevel gear 22 in the mounting frame 9 to rotate, thereby driving the driven bevel gear 21 in the mounting frame 9 to rotate, which in turn drives the transmission gear 20 and the eccentric shaft 10 to rotate. The rotating eccentric shaft 10 will drive the mounting shaft 13 and the moving cone 14 to rotate. The rotating moving cone 14, in conjunction with the fixed cone 12 set on the inner wall of the cone crusher 2, can quickly squeeze and grind the stone falling along the feed port 1.

[0041] When the present invention is working under no-load, in order to prevent the moving cone 14 from rotating too fast due to its own weight and inertia, the air pump 3 can be controlled by the control panel 4 to input high-pressure gas into the annular groove 19 in the fixed circular frame 15 through the air supply pipe 7. Since the fixed sleeve 161 has a through groove 162 that communicates with the annular groove 19, when the air pressure gradually increases, the force required for the wear-resistant end cap 11 at the upper end of the limiting disc 17 to push the limiting rod 164 back will also gradually increase. This pressurization method can limit the synchronous rotation of the limiting disc 17 of the moving cone 14, thereby slowing down the rotation speed of the moving cone 14 when the present invention is working under no-load, and preventing the moving cone 14 from running away when it is working under no-load.

[0042] 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 and improvements 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 device for unidirectionally preventing the rotation of a moving cone, comprising a cone crusher (2), a mounting frame (9), an eccentric shaft (10), a mounting shaft (13), a support frame (8), and a fixed circular frame (15), characterized in that: The support frame (8) is fixedly connected to the inside of the cone crusher (2), the fixed circular frame (15) is fixedly connected to the upper end face of the support frame (8), the mounting frame (9) is fixedly connected to the lower end face of the cone crusher (2), the eccentric shaft (10) is rotatably connected to the upper end face of the mounting frame (9), and the mounting shaft (13) is fixedly connected to the upper end face of the eccentric shaft (10). The outer wall of the mounting shaft (13) is fixedly connected to a limiting disc (17). A wear-resistant end cap (11) is installed on the upper end face of the limiting disc (17). An annular groove (19) is opened inside the fixed circular frame (15). Multiple limiting rod assemblies (16) are installed inside the fixed circular frame (15). The limiting rod assembly (16) includes a fixed sleeve (161) and a limiting rod (164). The fixed sleeve (161) is fixedly connected inside the annular groove (19). The outer wall of the limiting rod (164) is slidably connected to the inner wall of the fixed sleeve (161). A return spring (163) is fixedly connected to the upper end face of the limiting rod (164). The upper end face of the return spring (163) is fixedly connected to the inner wall of the fixed sleeve (161). The lower end face of the limiting rod (164) is in contact with the outer wall of the wear-resistant end cap (11). The fixed sleeve (161) has multiple through grooves (162) inside, and each through groove (162) is connected to the annular groove (19). An air pump (3) is installed on the outer wall of the cone crusher (2). An air supply pipe (7) is fixedly connected to the output port of the air pump (3). The end of the air supply pipe (7) away from the air pump (3) is fixedly connected to the outer wall of the fixed circular frame (15), and the air supply pipe (7) is connected to the annular groove (19) inside the fixed circular frame (15).

2. The device for preventing the rotation of a moving cone in one direction as described in claim 1, characterized in that: The mounting bracket (9) is rotatably connected to a transmission gear (20). The upper end face of the transmission gear (20) is fixedly connected to the lower end face of the eccentric shaft (10). The mounting bracket (9) is fixedly connected to a fixing rod (25). The upper end face of the fixing rod (25) is rotatably connected to a locking tooth (23). The lower end face of the locking tooth (23) is fixedly connected to a baffle (24). The outer wall of the baffle (24) is fixedly connected to a torsion spring (26). The torsion spring (26) is sleeved on the outer wall of the fixing rod (25), and the lower end face of the torsion spring (26) is fixedly connected to the outer wall of the fixing rod (25). The outer wall of the locking tooth (23) is slidably connected to the outer wall of the transmission gear (20).

3. The device for preventing the rotation of a moving cone in one direction as described in claim 2, characterized in that: A pressure sensor (18) is installed inside the annular groove (19), and a control panel (4) is installed on the outer wall of the cone crusher (2). The pressure sensor (18) and the air pump (3) are both electrically connected to the control panel (4).

4. The device for preventing the rotation of a moving cone in one direction as described in claim 3, characterized in that: The mounting bracket (9) is rotatably connected to a transmission bevel gear (22), and the lower end face of the transmission gear (20) is fixedly connected to a driven bevel gear (21). The driven bevel gear (21) and the transmission bevel gear (22) mesh and transmit power.

5. The device for preventing the rotation of a moving cone in one direction as described in claim 4, characterized in that: The outer wall of the mounting bracket (9) is equipped with a drive motor (6), the output end of the drive motor (6) is fixedly connected to the outer wall of the transmission bevel gear (22), and the drive motor (6) is electrically connected to the control panel (4).

6. The device for preventing the rotation of a moving cone in one direction as described in claim 1, characterized in that: The outer wall of the mounting shaft (13) is fixedly connected to a moving cone (14), and the inside of the cone crusher (2) is fixedly connected to a fixed cone (12). The outer wall of the moving cone (14) corresponds to the inner wall of the fixed cone (12).

7. The device for preventing the rotation of a moving cone in one direction as described in claim 1, characterized in that: The upper end face of the cone crusher (2) is fixedly connected to the feed port (1), and the lower end face of the cone crusher (2) is fixedly connected to the support foot (5).

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