Double-roller crushing device

Abstract

The utility model discloses a roller crushing device which comprises a base, a crushing cavity is arranged on the base, two crushing rollers matched with each other are arranged in the crushing cavity, and two motors used for driving the corresponding crushing rollers to rotate respectively are arranged on the base. And the motor is connected with a rotating shaft of the crushing roller through a tire coupling. The crushing roller is independently driven by the two motors so as to provide enough driving force, the driving motor and the rotating shaft of the crushing roller are connected through the tire coupler, the capacity of compensating the relative displacement of the two shafts is large, and long-term stable operation of equipment is conveniently ensured.

Description

Technical Field

[0001] The utility model relates to a double-roller crushing device, belonging to the technical field of automatic crushing. Background Art

[0002] In the recycling process of waste lithium battery materials, it is usually necessary to first sinter the lithium battery positive electrode material to obtain agglomerated materials, and then crush the agglomerated materials. It is generally divided into two steps: coarse crushing and fine crushing. Usually, a double-roller mill is used to coarsely crush the agglomerated materials.

[0003] The application number is: CN202410464519.9, and the patent name is: A pair of rollers assembly and a pair of rollers machine. The patent application discloses a technical solution that drives two crushing rollers to rotate synchronously through a set of mutually meshing gears and a motor, and uses a universal coupling to ensure that when encountering hard material blocks that cannot be crushed and causing relative displacement between the crushing rollers, the drive structure will not be damaged.

[0004] However, this solution, which is driven by a single motor, may suffer from insufficient power when crushing hard materials. In addition, when encountering large pieces of materials that cannot be crushed, the displacement compensation capacity of the universal coupling may not be sufficient, causing the equipment to get stuck.

[0005] At the same time, the crushing rollers of existing double-roll crushing devices are usually integrated structures. However, during the crushing process, once the raised structure is damaged, the crushing roller needs to be replaced as a whole. Even if the structure of the multi-tooth roller disc and the spacer ring plate as recorded in the application number: CN202222937207.4 and the patent name: A large hard material crushing device is adopted, once the multi-tooth roller disc is damaged during the crushing process, it is very inconvenient to replace it. Summary of the Invention

[0006] The technical problem to be solved by the utility model is to provide a double-roll crushing device, in which the crushing rollers are driven independently by dual motors to provide sufficient driving force, and the driving motor and the crushing roller shaft are connected by a tire coupling, which has a large ability to compensate for the relative displacement of the two shafts, thereby ensuring the long-term stable operation of the equipment.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A roller crushing device includes a base, a crushing cavity is provided on the base, two crushing rollers that cooperate with each other are provided in the crushing cavity, and two motors are provided on the base for driving the corresponding crushing rollers to rotate, and the motors are connected to the rotating shafts of the crushing rollers through tire couplings.

[0009] The aforementioned double-roll crushing device is characterized in that: fixed frames are provided at both ends of the crushing cavity, the rotating shaft connecting frame of the crushing roller can move horizontally along the fixed frame, and elastic plungers are respectively provided at both ends of the fixed frame for limiting the rotating shaft connecting frame.

[0010] The aforementioned double-roll crushing device is characterized in that the inner surfaces of the upper and lower ends of the fixed frame are both provided with sliding grooves, and the rotating shaft connecting frame can move horizontally in the sliding grooves.

[0011] The aforementioned double-roll crushing device is characterized in that the surfaces of the two mutually cooperating crushing rollers are provided with multiple rows of crushing protrusions at equal intervals and staggered along their circumferences.

[0012] The aforementioned double-roll crushing device is characterized in that the crushing protrusion is detachably connected to the crushing roller.

[0013] The aforementioned double-roll crushing device is characterized in that the surface of the crushing roller is provided with a tungsten coating, and the material of the crushing protrusion is tungsten.

[0014] Beneficial effects of the utility model:

[0015] 1. The crushing rollers are driven independently by dual motors to provide sufficient driving force. The driving motor and the crushing roller shaft are connected by a tire coupling, which has a greater ability to compensate for the relative displacement of the two shafts, ensuring the long-term stable operation of the equipment.

[0016] 2. By setting the crushing protrusions on the surface of the crushing roller into a detachable structure, when a single crushing protrusion is damaged during the crushing process, it can be easily replaced, which is quick and easy and helps to reduce replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a double-roll crushing device of the utility model;

[0018] Figure 2 This is a top view of a double-roll crushing device of the utility model;

[0019] Figure 3 This is a front view of a crushing roller of a double-roll crushing device of the utility model;

[0020] Figure 4 It is a cross-sectional view of a crushing roller of a double-roll crushing device of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1-4As shown, a roller crushing device includes a base 10, a crushing cavity 20 is provided on the base 10, two crushing rollers 21 that cooperate with each other are provided in the crushing cavity 20, and two motors 30 are provided on the base 10 for driving the corresponding crushing rollers 21 to rotate, and the motors 30 are connected to the rotating shafts of the crushing rollers 21 through a tire coupling 40.

[0023] The crushing rollers 21 are driven separately by dual motors 30 so as to provide sufficient driving force during the crushing process to ensure the crushing effect, and the driving motor 30 and the crushing roller shaft are connected by a tire coupling 40. Since the tire coupling 40 has a large ability to compensate for the relative displacement of the two shafts, when encountering large pieces of hard materials that cannot be crushed, the overall drive structure will not be affected during the relative movement of the crushing rollers 21, which is convenient for ensuring the long-term stable operation of the equipment.

[0024] Fixed frames 50 are provided at both ends of the crushing chamber 20. The rotating shaft connecting frames 51 of the crushing rollers 21 can move horizontally along the fixed frames 50. Elastic plungers 52 are provided at both ends of the fixed frames 50 for limiting the position of the rotating shaft connecting frames 51. During normal crushing, the elastic plungers 52 keep the two crushing rollers 21 in their set positions, crushing the material during relative rotation. When encountering large pieces of hard material that cannot be crushed, the squeezing force generated by the material passing between the two crushing rollers 21 causes the two crushing rollers 21 to move horizontally relative to the fixed frames 50. After the large piece of hard material has passed, the elastic plungers 52 return the rollers to their original positions, and the equipment continues to operate normally.

[0025] In this embodiment, the inner surfaces of the upper and lower ends of the fixed frame 50 are provided with slide grooves, and the rotating shaft connecting frame 51 can move horizontally in the slide grooves. By setting the rotating shaft connecting frame 51 to move in the slide grooves, not only the horizontal movement of the crushing roller 21 relative to the fixed frame 50 is achieved, but also the relative positions of the two crushing rollers will not be offset after resetting, which is convenient for continued crushing of the material.

[0026] The surfaces of the two cooperating crushing rollers 21 are staggered with multiple rows of crushing protrusions 211 at equal intervals along their circumferences. These staggered crushing protrusions 211 achieve material crushing. The crushing protrusions 211 are detachably connected to the crushing rollers 21. If a single crushing protrusion becomes damaged during the crushing process, it can be easily and quickly replaced, which helps reduce replacement costs. In this embodiment, the surfaces of the crushing rollers 21 are provided with multiple threaded holes, and the crushing protrusions 211 are secured to the crushing rollers 21 via threaded connections. In actual operation, other fixing methods, such as snap-on fasteners, may also be used.

[0027] In order to enhance the overall hardness of the entire crushing roller 21 , a tungsten coating is provided on the surface of the crushing roller 21 , and the material of the crushing protrusions 211 is tungsten, thereby ensuring the service life of the entire device.

[0028] In summary, the utility model provides a double-roll crushing device, which drives the crushing rollers separately through dual motors to provide sufficient driving force, and the driving motor and the crushing roller shaft are connected by a tire coupling, which has a large ability to compensate for the relative displacement of the two shafts, thereby ensuring the long-term stable operation of the equipment.

[0029] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A roller crushing device, characterized in that: The invention comprises a base (10), wherein a crushing cavity (20) is provided on the base (10), wherein two crushing rollers (21) cooperating with each other are provided in the crushing cavity (20), and wherein two motors (30) are provided on the base (10) for driving the corresponding crushing rollers (21) to rotate, and wherein the motors (30) are connected to the rotating shafts of the crushing rollers (21) via a tire coupling (40).

2. The roller crushing device according to claim 1, characterized in that: Fixed frames (50) are provided at both ends of the crushing cavity (20), a rotating shaft connecting frame (51) of the crushing roller (21) can move horizontally along the fixed frame (50), and elastic plungers (52) for limiting the rotating shaft connecting frame (51) are respectively provided at both ends of the fixed frame (50).

3. The roller crushing device according to claim 2, characterized in that: The inner surfaces of the upper and lower ends of the fixing frame (50) are both provided with sliding grooves, and the rotating shaft connecting frame (51) can move horizontally in the sliding grooves.

4. A roller crushing device according to any one of claims 1 to 3, characterized in that: The surfaces of the two mutually cooperating crushing rollers (21) are provided with multiple rows of crushing protrusions (211) arranged at equal intervals and staggered along their circumferences.

5. The roller crushing device according to claim 4, characterized in that: The crushing protrusion (211) is detachably connected to the crushing roller (21).

6. The roller crushing device according to claim 5, characterized in that: The surface of the crushing roller (21) is provided with a tungsten coating, and the material of the crushing protrusion (211) is tungsten.

Images