Roller type vibration crushing device capable of preventing sudden change of torque

Abstract

The utility model provides a roller type vibration crushing device capable of preventing sudden change of torque. The roller type vibration crushing device comprises a rack, a crushing box, a driving crushing structure, a driven crushing structure, a supporting seat, a floating shaft, a first flywheel, a second flywheel, a first power mechanism and a second power mechanism, the driving crushing structure comprises a first rotating shaft and a driving roller, and the first rotating shaft is a centering shaft; the driven crushing structure comprises a second rotating shaft and a driven roller, the second rotating shaft and the first rotating shaft are arranged in parallel, and the second rotating shaft is an eccentric shaft; the first flywheel is arranged at the first end of the second rotating shaft, and the second flywheel is arranged at the second end of the second rotating shaft; the first power mechanism and the second power mechanism are arranged on the rack, the first power mechanism is connected with the first rotating shaft, one end of the floating shaft is hinged to the second power mechanism, and the other end of the floating shaft is hinged to the second end of the second rotating shaft. The utility model can ensure that the rotation angular velocity and the output torque of the eccentric shaft are as uniform as possible.

Description

Technical Field

[0001] The utility model relates to the field of material crushing, in particular to a roller vibration crushing device for preventing torque mutation. Background Art

[0002] The currently used roller crushers mainly crush materials through counter-rotating rollers rotating at the same speed. For example, the 350-type 11kw16 crusher achieves the crushing effect by extruding the materials. However, the existing crushing devices have the following problems: (1) They cannot crush materials evenly and quickly, and secondary crushing or direct processing of the next process is required, resulting in certain economic losses and the crushed materials not meeting the usage requirements; (2) When crushing materials with too large volume or too high hardness, it is very easy to cause the machine to jam, and in severe cases, the motor will burn out, affecting the processing efficiency of the crushing device and causing serious economic losses; (3) The high-efficiency crushing devices are costly and have a relatively complex structure. Summary of the Utility Model

[0003] For the above technical problems, the technical solution adopted by the utility model is as follows:

[0004] The embodiment of the utility model provides a roller vibration crushing device for preventing torque mutation, which includes a frame, a crushing box, an active crushing structure, a driven crushing structure, a support seat, a floating shaft, a first flywheel, a second flywheel, a first power mechanism, and a second power mechanism; the active crushing structure includes a first rotating shaft and an active roller arranged on the first rotating shaft. The two ends of the first rotating shaft respectively pass through the crushing box and are connected to the support seat. The first rotating shaft is a centric shaft; the driven crushing structure includes a second rotating shaft and a driven roller arranged on the second rotating shaft. The two ends of the second rotating shaft respectively pass through the crushing box and are movably connected to the support seat. The second rotating shaft is arranged parallel to the first rotating shaft, and the second rotating shaft is an eccentric shaft; the first flywheel is arranged at the first end of the second rotating shaft, and the second flywheel is arranged at the second end of the second rotating shaft; the first power mechanism and the second power mechanism are arranged on the frame. The first power mechanism is connected to the first rotating shaft. One end of the floating shaft is hinged to the second power mechanism, and the other end is hinged to the second end of the second rotating shaft.

[0005] Optionally, it further includes a magnetic coupler; one end of the magnetic coupler is connected to the first power mechanism, and the other end is connected to the first rotating shaft.

[0006] Optionally, it further includes a first adjusting device and a second adjusting device. The first adjusting device is connected to the first end of the second rotating shaft, and the second adjusting device is connected to the second end of the second rotating shaft. The first adjusting device and the second adjusting device cooperate to drive the driven roller to move so as to adjust the distance between the driving roller and the driven roller.

[0007] Optionally, the first power mechanism includes a first asynchronous motor, a first coupling, and a first reducer connected in sequence. The first reducer is connected to the magnetic coupling. The second power mechanism includes a second asynchronous motor, a second coupling, and a second reducer connected in sequence. The second reducer is connected to the floating shaft. The first asynchronous motor and the second asynchronous motor are fixedly arranged on the frame.

[0008] Optionally, both the first adjusting device and the second adjusting device are hydraulic cylinders.

[0009] Optionally, a protective cover is arranged above the crushing box, and a feed inlet is arranged above the protective cover.

[0010] Optionally, one end of the floating shaft is hinged to the second power mechanism through a first shaft-end coupling, and the other end is hinged to the second end of the second rotating shaft through a second shaft-end coupling.

[0011] Optionally, the driving roller and the first rotating shaft are connected by a key.

[0012] Optionally, the driven roller and the second rotating shaft are connected by a bearing.

[0013] Optionally, it further includes a shock-absorbing platform; the shock-absorbing platform is arranged on the frame, and the first power mechanism and the second power mechanism are arranged on the shock-absorbing platform.

[0014] The utility model has at least the following beneficial effects:

[0015] The device provided by the utility model, through the unique eccentric shaft structure design, adds high-frequency vibration while performing extrusion and crushing, makes full use of the loosening effect, can improve the material crushing efficiency while effectively reducing the outlet particle size. In addition, by adding a flywheel at each end of the eccentric shaft for energy storage to balance the torque mutation during the operation of the second rotating shaft, it can ensure that the rotation angular velocity and output torque of the eccentric shaft are as uniform as possible, protecting the motor. In addition, a magnetic coupling and hydraulic double protection device is added, which can perform overload protection, coordinate the load distribution during the operation and start-up of the equipment, and can reduce impact and vibration, protecting the motor. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 The top view of the roller vibration crushing device for preventing torque mutation provided by the embodiment of the present invention;

[0018] Figure 2 For observing along Figure 1 The schematic diagram observed in the A-A direction in

[0019] (Reference numerals)

[0020] 1: First asynchronous motor, 2: First coupling, 3: First reducer, 4: Magnetic coupling,

[0021] 5: Driving roller, 6-1: First flywheel, 6-2: Second flywheel, 7-1: First adjusting device,

[0022] 7-2: Second adjusting device, 8: Driven roller, 9: Bearing, 10: Second asynchronous motor,

[0023] 11: Second coupling, 12: Second reducer, 13-1: First shaft-end coupling,

[0024] 13-2: Second shaft-end coupling, 14: Floating shaft, 15: Frame 1, 16: Guard, 17: Feed inlet,

[0025] 18: Crushing area, 19-1: First front bearing cover, 19-2: Second front bearing cover, 20: First rotating shaft,

[0026] 21: Second rotating shaft, 22-1: First front bearing, 22-2: Second front bearing, 23: Support seat,

[0027] 24: Adjusting lead screw. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0029] The embodiment of the present invention provides a roller vibration crushing device, such asFigure 1 and Figure 2 As shown in Figure 2 , it may include: a frame 15, a crushing box, a driving crushing structure, a driven crushing structure, a support seat 23, a floating shaft 14, a first flywheel 6-1, a second flywheel 6-2, a first power mechanism, and a second power mechanism.

[0030] Among them, the driving crushing structure may include a first rotating shaft 20 and a driving roller 5 arranged on the first rotating shaft. Both ends of the first rotating shaft 20 pass through the crushing box and are connected to the support seat 23 respectively. The first rotating shaft 20 is a centric shaft. The driving roller 5 and the first rotating shaft 20 are connected by a key.

[0031] Further, in the embodiment of the present invention, the front end of the first rotating shaft 20 may be arranged at the front end of the support seat 23 through a first front-end support device, and the rear end of the first rotating shaft 20 may be arranged at the rear end of the support seat 23 through a first rear-end support device. Among them, the first front-end support device includes a first front-end support, a first front-end bearing cover 19-1, and a first front-end bearing. The first front-end support is fixedly arranged at the front end of the support seat 23; the first front-end bearing and the first front-end bearing cover are respectively arranged in the first front-end support. The distance from the first front-end bearing to the center line of the crushing box is about 100 cm - 150 cm. The first front-end bearing is arranged in the first front-end bearing cover 19-1 by interference fit and is connected to the front end of the first rotating shaft 20. The first front-end bearing cover 9-1 can be fixed on the first support frame by screws or the like.

[0032] The first rear-end support device includes a first rear-end support, a first rear-end bearing cover, and a first rear-end bearing. The first rear-end support is fixedly arranged at the rear end of the support seat 23; the first rear-end bearing and the first rear-end bearing cover are respectively arranged in the first rear-end support. The distance between the first rear-end bearing and the first rear-end bearing cover is about 20 cm - 30 cm. The first rear-end bearing is connected to the rear end of the first rotating shaft, which can ensure the smooth rotation of the first rotating shaft 20. The first rear-end bearing cover can be fixed on the first rear-end support by screws or the like.

[0033] The structures of the first front-end support and the first rear-end support may be the same. For example, they may be square structures. A circular hole suitable for the bearing is formed in the middle of the support, and it can be fixed on the support seat by screws or the like.

[0034] Further, the driven crushing structure includes a second rotating shaft 21 and a driven roller 8 arranged on the second rotating shaft 21. Both ends of the second rotating shaft 21 pass through the crushing box and are movably connected to the support seat 23. The second rotating shaft 21 is arranged in parallel with the first rotating shaft 20, and the second rotating shaft 20 is an eccentric shaft. The driven roller 8 and the second rotating shaft 20 are connected by a bearing and can rotate freely on the second rotating shaft.

[0035] Furthermore, the front end of the second rotating shaft 21 can be arranged on the front end of the support base 23 through a second front-end support device, and the rear end of the second rotating shaft 21 is arranged on the rear end of the support base 23 through a second rear-end support device. Among them, the second front-end support device includes a second front-end support seat, a second front-end bearing cover 19-2, and a second front-end bearing 22-2. The second front-end support seat is movably arranged on the support base. The second front-end bearing and the second front-end bearing cover 19-2 are respectively arranged in the second front-end support seat; the distance from the second front-end bearing to the center line of the crushing chamber is about 100 cm to 150 cm, and the second front-end bearing 22-2 is arranged in the second front-end bearing cover 19-2 by interference fit. The second front-end bearing cover 19-2 can be fixed on the second front-end support seat by screws or the like.

[0036] The second rear-end support device includes a second rear-end support seat, a second rear-end bearing cover, and a second rear-end bearing. The second rear-end support seat is movably arranged on the rear end of the support base. The second rear-end bearing and the second rear-end bearing cover are respectively arranged in the second rear-end support seat. The distance between the second rear-end bearing and the second rear-end bearing cover is about 20 cm to 30 cm. The second rear-end bearing is connected to the rear end of the second rotating shaft 21, which can ensure the smooth rotation of the second rotating shaft. The second rear-end bearing cover can be fixed on the support base by screws or the like.

[0037] In the embodiment of the present invention, the structures of the second front-end support seat and the second rear-end support seat can be the same as those of the first front-end support seat and the first rear-end support seat. The difference is that the second front-end support seat and the second rear-end support seat are movably arranged in the support base. Those skilled in the art know that the second front-end support seat and the second rear-end support seat can be movably arranged in the support base by existing methods, for example, by means of a slide rail and a slide groove.

[0038] In the embodiment of the present utility model, a crushing area 18 is formed between the driving roller 5 and the driven roller 8.

[0039] Furthermore, the first flywheel 6-1 is arranged at the first end of the second rotating shaft 21, and the second flywheel 6-2 is arranged at the second end of the second rotating shaft 21.

[0040] Further, the first power mechanism and the second power mechanism are arranged on the frame, and can be specifically fixed to the frame 15 by bolts. The frame can weaken the vibration generated during the operation of the first asynchronous motor 1 and the second asynchronous motor 10, preventing it from affecting the stable operation of the crusher. The first power mechanism is connected to the first rotating shaft. One end of the floating shaft 14 is hinged to the second power mechanism, and the other end is hinged to the second end of the second rotating shaft. Specifically, one end of the floating shaft 14 is hinged to the second power mechanism through a first shaft end coupling 13-1, and the other end is hinged to the second end of the second rotating shaft through a second shaft end coupling 13-2. In this way, the floating shaft 14 can be extended and twisted to avoid interference when the driven roller 8 moves backward.

[0041] Further, the device provided by the present invention further includes a magnetic coupler 4; one end of the magnetic coupler 4 is connected to the first power mechanism, and the other end is connected to the first rotating shaft.

[0042] In the embodiment of the present invention, the first power mechanism may include a first asynchronous motor 1, a first coupling 2, and a first reducer 3 connected in sequence. The output shaft of the first reducer 3 is connected to the magnetic coupler 4. The second power mechanism includes a second asynchronous motor 10, a second coupling, and a second reducer 12 connected in sequence. The second reducer 12 is connected to the floating shaft 14. The first asynchronous motor and the second asynchronous motor are fixedly arranged on the frame.

[0043] Further, it further includes a first adjusting device 7-1 and a second adjusting device 7-2. The first adjusting device 7-1 is connected to the first end of the second rotating shaft 21, and the second adjusting device 7-2 is connected to the second end of the second rotating shaft 21. Specifically, the first adjusting device is connected to the second front support, and the second adjusting device is connected to the second rear support. The first adjusting device 7-1 and the second adjusting device 7-2 cooperate to drive the driven roller to move to adjust the distance between the driving roller and the driven roller.

[0044] In a schematic embodiment, both the first adjusting device and the second adjusting device are hydraulic cylinders. The hydraulic cylinders are fixed to the frame by bolts. When the bolts are fixed to the frame, flat washers and spring washers are added to prevent the hydraulic cylinders from moving and reduce the impact force brought by the telescopic movement of the hydraulic cylinders to the frame. An adjusting lead screw 24 is added between the left side of the hydraulic cylinder and the corresponding rear support. The axis of the adjusting lead screw coincides with the axis of the transmission shaft of the hydraulic cylinder. The distance between the two rollers can be adjusted through the adjusting lead screw.

[0045] Further, a protective cover 16 is arranged above the crushing chamber, and a feed inlet 17 is arranged above the protective cover. The protective cover 16 can prevent the dust generated during the crushing operation of the machine from spreading and affecting the environment.

[0046] Furthermore, it further includes a shock-absorbing table (not shown); the shock-absorbing table is arranged on the frame, and the first power mechanism and the second power mechanism are arranged on the shock-absorbing table. The shock-absorbing table is used to weaken the vibration generated by the operation of the motor and prevent it from affecting the crushing device.

[0047] The working principle of the roller vibration crushing device provided by the embodiment of the present invention is as follows:

[0048] (1) Start the first asynchronous motor 1 and the second asynchronous motor 10, and adjust the rotation speeds of the first asynchronous motor and the second asynchronous motor respectively through the first reducer 3 and the second reducer 12 to reach the appropriate rotation speeds.

[0049] (2) The first reducer 3 is connected to the first rotating shaft 20, and a driving roller 5 is installed on the first rotating shaft. The second reducer 12 is connected to the second rotating shaft 21 through a floating shaft, and a driven roller 8 is installed on the second rotating shaft. When the first reducer drives the first rotating shaft to rotate, the first rotating shaft can drive the driving roller 5 to rotate. The crushing chamber is filled with materials to be crushed. Under the action of friction, the driving roller drives the driven roller to rotate in opposite directions; when the second reducer drives the second rotating shaft to rotate, the second rotating shaft rotates at a high speed, causing the driven roller to vibrate at a high frequency. When encountering hard or difficult-to-crush materials, the magnetic coupling disconnects the connection between the driving roller and the reducer, causing the driving roller to stop rotating. The hydraulic device makes the driven roller of the crusher automatically retreat under the action of the hydraulic cylinder, and the gap between the two rollers will increase, so that the hard or difficult-to-crush materials will fall, thereby protecting the machine from damage. There is a certain gap between the two crushing rollers rotating in opposite directions, and the discharge particle size of the product can be controlled by changing the gap.

[0050] Among them, during the working process of the crushing device, materials are added into the crushing device through the feeding port 17, and the crushed materials fall naturally and are transported to the designated position by the conveying device below the crushing device.

[0051] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should also understand that various modifications can be made to the embodiments without departing from the scope and spirit of the present invention. The scope disclosed by the present invention is defined by the appended claims.

Claims

1. A roller vibration crushing device for preventing torque mutation, characterized in that, Comprising: A frame, a crushing box, an active crushing structure, a driven crushing structure, a support seat, a floating shaft, a first flywheel, a second flywheel, a first power mechanism, and a second power mechanism; The active crushing structure includes a first rotating shaft and an active roller provided on the first rotating shaft. Both ends of the first rotating shaft respectively pass through the crushing box and are connected to the support seat. The first rotating shaft is a concentric shaft. The driven crushing structure includes a second rotating shaft and a driven roller provided on the second rotating shaft. Both ends of the second rotating shaft respectively pass through the crushing box and are movably connected to the support seat. The second rotating shaft is arranged parallel to the first rotating shaft, and the second rotating shaft is an eccentric shaft; The first flywheel is arranged at the first end of the second rotating shaft, and the second flywheel is arranged at the second end of the second rotating shaft; The first power mechanism and the second power mechanism are arranged on the frame. The first power mechanism is connected to the first rotating shaft. One end of the floating shaft is hinged to the second power mechanism, and the other end is hinged to the second end of the second rotating shaft.

2. The device according to claim 1, wherein It further includes a magnetic coupler; one end of the magnetic coupler is connected to the first power mechanism, and the other end is connected to the first rotating shaft.

3. The device according to claim 1, wherein It further includes a first adjusting device and a second adjusting device. The first adjusting device is connected to the first end of the second rotating shaft, and the second adjusting device is connected to the second end of the second rotating shaft. The first adjusting device and the second adjusting device cooperate to drive the driven roller to move to adjust the distance between the active roller and the driven roller.

4. The device according to claim 2, wherein The first power mechanism includes a first asynchronous motor, a first coupling, and a first reducer connected in sequence. The first reducer is connected to the magnetic coupler. The second power mechanism includes a second asynchronous motor, a second coupling, and a second reducer connected in sequence. The second reducer is connected to the floating shaft. The first asynchronous motor and the second asynchronous motor are fixedly arranged on the frame.

5. The device according to claim 3, characterized in that, Both the first adjusting device and the second adjusting device are hydraulic cylinders.

6. The device according to claim 1, wherein A protective cover is arranged above the crushing box, and a feed inlet is arranged above the protective cover.

7. The crushing device according to claim 1, wherein One end of the floating shaft is hinged to the second power mechanism through a first shaft-end coupling, and the other end is hinged to the second end of the second rotating shaft through a second shaft-end coupling.

8. The crushing device according to claim 1, characterized in that, The active roller and the first rotating shaft are connected by a key.

9. The crushing device according to claim 1, characterized in that, The driven roller and the second rotating shaft are connected by a bearing.

10. The crushing device according to claim 1, characterized in that, It further includes a shock-absorbing platform; the shock-absorbing platform is arranged on the frame, and the first power mechanism and the second power mechanism are arranged on the shock-absorbing platform.

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