Neodymium iron boron magnet scrap crusher protection assembly

Abstract

A Nd-Fe-B magnet waste crusher protection combination has a first state and a second state and comprises: a first part comprising a clamping groove; a second part mounted on the first part and movably matched with the first part, and comprising a mounting hole and a clamping piece movably matched with the mounting hole, the clamping piece being located at a second relative position not abutting the clamping groove; and a third part capable of abutting the second part to limit the clamping piece when the protection combination is in the first state, and the first part and the second part can form a fastened connection in the first state due to the clamping piece limiting between the first part and the second part, and the third part can control the relative position of the clamping piece by moving, so that the change of the protection combination from the first state to the second state in which the first part and the second part lose the connection is more efficient and accurate.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of crushing equipment, and particularly relates to a neodymium-iron-boron magnet waste crusher protection combination. BACKGROUND

[0002] Neodymium-iron-boron magnets are discarded after the service life of equipment, and the neodymium-iron-boron contains recyclable resources, which is extremely wasteful to be discarded directly, and the neodymium-iron-boron magnets are usually recycled, and the recycling of the neodymium-iron-boron magnets needs to go through multiple processes, one of which is to crush the neodymium-iron-boron by rolling, and most of the existing crushers are jaw crushers, and when the jaw crusher drops in hard-to-crush objects, the devices of the crusher are damaged, affecting the production efficiency and production safety.

[0003] Therefore, a high-load protection device is needed, which can stop the device in time when the jaw crusher drops in hard-to-crush objects, and protect the equipment and personnel safety. SUMMARY

[0004] The application improves the prior art, and the technical problem to be solved by the application is to provide a high-load protection device which can protect the jaw crusher when it drops in hard-to-crush objects.

[0005] In order to solve the above technical problems, the application is solved by the following technical scheme:

[0006] A neodymium-iron-boron magnet waste crusher protection combination, the protection combination has a first state and a second state and comprises: a first part comprising a clamping groove; a second part installed on the first part and movably matched with the first part, and comprising a mounting hole and a clamping piece movably matched with the mounting hole, wherein when the protection combination is in the first state, the mounting hole corresponds to and abuts against the clamping groove, and the clamping piece is located at a first relative position abutting against the clamping groove, and when the protection combination is in the second state, the mounting hole is staggered with the clamping groove, and the clamping piece is located at a second relative position staggered with the clamping groove; and a third part installed on the second part and movably matched with the second part, when the protection combination is in the first state, the third part and the second part can abut against and limit the clamping piece, so that the clamping piece is in the first relative position, and when the protection combination is in the second state, the third part and the second part can abut against and limit the clamping piece, so that the clamping piece is in the second relative position, the first part is fixed and provided with a screw rod assembly, the third part has a threaded hole corresponding to the screw rod assembly, and the third part can move axially by changing the rotation direction of the screw rod assembly.

[0007] According to the scheme, since the first part and the second part are limited by the clamping piece, in the first state, the first part and the second part can form a tight connection, and since the third part can control the relative position of the clamping piece by moving, the change of the protection combination from the first state to the second state in which the first part and the second part lose connection is more efficient and accurate.

[0008] According to one scheme disclosed in the present application, the first part is cylindrical, the second part is columnar, the first part is sleeved on the second part, the clamping groove is circumferentially arranged on the inner wall of the first part, and the mounting port is circumferentially and equidistantly arranged on the second part.

[0009] According to one scheme disclosed in the present application, the mounting port has four, and the clamping piece corresponding to the mounting port also has four.

[0010] According to one scheme disclosed in the present application, the second part has a receiving cavity and a through hole, and the third part is at least partially arranged in the receiving cavity through the through hole.

[0011] According to one scheme disclosed in the present application, the third part has a wide body and a narrow body, when the clamping piece is in the first relative position, the wide body corresponds to abut against the clamping piece, when the clamping piece is in the second relative position, the narrow body corresponds to abut against the clamping piece, so that the third part has certain structural stability, and the change of the protection combination from the first state to the second state is more smooth.

[0012] According to one scheme disclosed in the present application, the first part has a screw assembly, the third part has a threaded hole corresponding to a screw of the screw assembly, the screw is configured to control the movement of the third part by forward and reverse rotation, and the screw is driven by a motor, which has high controllability and quick response.

[0013] According to one scheme disclosed in the present application, the cross section of the clamping piece is a triangle with the pointed end outward, which makes the change of the protection combination from the first state to the second state more smooth. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A schematic view showing the installation position of the protection combination of the neodymium iron boron magnet waste crusher in the crusher.

[0015] Figure 2 A schematic view showing the assembly of the second part and the third part of the protection combination of the neodymium iron boron magnet waste crusher according to the present application.

[0016] Figure 3 A schematic view showing the first part of the protection combination of the neodymium iron boron magnet waste crusher according to the present application.

[0017] Figure 4 Fig. 3 shows a perspective view of a third part of the NdFeB magnet scrap crusher protection assembly according to the present disclosure.

[0018] Figure 5 Fig. 4 shows a cross-sectional view of the NdFeB magnet scrap crusher protection assembly according to the present disclosure in a first state.

[0019] Figure 6 Fig. 5 shows a cross-sectional view of the NdFeB magnet scrap crusher protection assembly according to the present disclosure in a second state. DETAILED DESCRIPTION

[0020] The application will be further described below in conjunction with the drawings and specific embodiments.

[0021] In the following embodiments, the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout the description, and the following embodiments described by referring to the drawings are exemplary and are only used to explain the application, and cannot be understood as a limitation on the application.

[0022] In the description of the application, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as a limitation on the application. In addition, the terms: first, second, etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the application, unless otherwise explicitly specified and limited, the terms: mounting, connecting, connecting, etc. should be understood in a broad sense, and those skilled in the art can understand the specific meaning of the above terms in the application according to the specific circumstances.

[0023] As Figure 1 Fig. 1 shows the installation position of the NdFeB magnet scrap crusher protection assembly in the crusher, which includes a first connecting rod 101 and a protection assembly 102, the upper end of the first connecting rod 101 is connected to the first part 1 by welding or bolt connection, and the lower end of the first connecting rod 101 is connected to the second part 2 by welding or bolt connection. During the operation of the machine, the connecting rod will be subjected to tension and thrust, and the protection assembly 102 can withstand the tension and thrust of the connecting rod in the first state without breaking, and the connection between the upper end and the lower end of the connecting rod is disconnected in the second state of the protection assembly 102.

[0024] Figure 2The second part 2 and the third part 3 of the Nd-Fe-B magnet waste crusher protection combination according to the present application are shown in the figure. The mounting hole 6 has four, and the clamping piece 4 corresponding to the mounting hole 6 also has four. The second part 2 and the third part 3 form a piston-like structure in the figure, so that the third part 3 can move up and down in the accommodating cavity 10 of the second part 2 through the through hole 7. The diameter of the through hole 7 is smaller than the diameter of the upper end of the second part 2, which makes the third part 3 have enough structure to limit the position of the third part 3 itself, such as the circular head at the upper end of the third part 3. In the figure, the mounting hole 6 is arranged on the second part 2. The area of the mounting hole 6 seen from the outside is smaller than the area of the mounting hole 6 seen from the inside, which corresponds to the triangular cross-sectional structure of the clamping piece 4 in the figure. When the clamping piece 4 is subjected to an axial force, it can convert part of the force into a transverse force, so that the clamping piece 4 moves inward. The upper side of the third part 3 also has a threaded hole 3c, which corresponds to the screw rod 8b assembly 8 in the figure. The forward and reverse rotation of the screw rod 8b can make the third part 3 move up and down like a piston. Figure 3

[0025] Figure 3 The first part 1 of the Nd-Fe-B magnet waste crusher protection combination according to the present application is shown in the figure. The first part 1 is cylindrical, and the second part 2 is columnar. The first part 1 is sleeved on the second part 2, and the clamping groove 5 is arranged circumferentially on the inner wall of the first part 1.

[0026] Figure 4 The third part 3 of the Nd-Fe-B magnet waste crusher protection combination according to the present application is shown in the figure. The third part 3 has a wide body 3b and a narrow body 3a. When the clamping piece 4 is in the first relative position, the wide body 3b corresponds to the clamping piece 4. When the clamping piece 4 is in the second relative position, the narrow body 3a corresponds to the clamping piece 4.

[0027] Figure 5 The cross-sectional view of the Nd-Fe-B magnet waste crusher protection combination according to the present application in the first state is shown in the figure. The third part 3 is fixed under the action of the screw rod 8b and the motor 8a in the screw rod 8b assembly 8, so that the wide body 3b of the third part 3 extrudes the clamping piece 4 to protrude the outer edge of the second part 2. The protruding part just corresponds to the clamping groove 5 of the first part 1, so that the first part 1 and the second part 2 form a fixed structure through the clamping piece 4.

[0028] Figure 6 ​As shown in the cross-sectional schematic view of the neodymium iron boron magnet waste crusher protection combination in the second state according to the present application, the third part 3 is moved downward under the action of the screw 8b and the motor 8a in the screw 8b assembly 8 until it is separated from the screw 8b. It should be noted that the third part 3 and the first part 1 also have a sliding rail structure, which limits the third part 3 from rotating under the rotating action of the screw 8b and causing disconnection failure. After the screw 8b is separated from the third part 3, the narrow body 3a of the third part 3 corresponds to the clamping piece 4, and the clamping piece 4 is completely embedded in the mounting port 6. The first part 1 and the second part 2 do not form a fixed structure through the clamping piece 4.

[0029] When the device is running, the sensor 103 on the first connecting rod 101 collects and transmits pressure information to the computer. When the pressure is greater than the set value, the computer transmits a command to the connecting rod assembly 8 to reverse the motor 8a, which drives the screw 8b to reverse. Because the screw 8b is screwed with the threaded hole 3c, the third part 3 moves axially downward until it is separated. After the third part moves axially downward, the wide body 3b of the third part corresponds to the clamping piece 4, which changes to the narrow body 3a corresponding to the clamping piece 4, so that the clamping piece 4 loses the connection between the first part 1 and the second part 2, and the first part 1 and the second part 2 are separated.

[0030] The protection scope of the present application includes but is not limited to the above embodiments, and the protection scope of the present application is subject to the claims, and any replacement, deformation, improvement of the present technology that can be easily thought of by those skilled in the art falls within the protection scope of the present application.

Claims

1. A neodymium-iron-boron magnet scrap shredder protection assembly (102) characterized by, The protection combination (102) has a first state and a second state and comprises: a first part (1) comprising a card slot (5); a second part (2) mounted on the first part (1) and movably matched with the first part (1), and comprising a mounting port (6) and a card piece (4) movably matched with the mounting port (6), wherein, when the protection combination (102) is in the first state, the mounting port (6) corresponds to the card slot (5) and abuts against the card slot (5), and the card piece (4) is located in a first relative position abutting against the card slot (5), and when the protection combination (102) is in the second state, the mounting port (6) is staggered with the card slot (5), and the card piece (4) is located in a second relative position staggered with the card slot (5); a third part (3) mounted on the second part (2) and movably matched with the second part (2), when the protection combination (102) is in the first state, the third part (3) and the second part (2) can abut against and limit the card piece (4), so that the card piece (4) is in the first relative position, and when the protection combination (102) is in the second state, the third part (3) and the second part (2) can abut against and limit the card piece (4), so that the card piece (4) is in the second relative position; the first part (1) is fixedly provided with a screw rod assembly (8), the third part (3) has a threaded hole (3c) corresponding to the screw rod assembly (8), and by changing the rotation direction of the screw rod assembly (8), the third part (3) can be axially moved.

2. A neodymium-iron-boron magnet scrap shredder protection assembly according to claim 1, wherein, The first part (1) is cylindrical, the second part (2) is columnar, the first part (1) is sleeved on the second part (2), the card slot (5) is circumferentially arranged on the inner wall of the first part (1), and the mounting port (6) is circumferentially and equidistantly arranged on the second part (2).

3. A neodymium-iron-boron magnet scrap shredder protection assembly according to claim 2, wherein, The mounting port (6) has four, and the card piece (4) corresponding to the mounting port (6) also has four.

4. A neodymium-iron-boron magnet scrap shredder protection assembly according to claim 3, wherein, The second part (2) has a containing cavity (10) and a through hole (7), and the third part (3) is at least partially arranged in the containing cavity (10) through the through hole (7).

5. A neodymium-iron-boron magnet scrap shredder protection assembly according to claim 4, wherein, The third part (3) has a wide body (3b) and a narrow body (3a), when the card piece (4) is in the first relative position, the wide body (3b) corresponds to abut against the card piece (4), and when the card piece (4) is in the second relative position, the narrow body (3a) corresponds to abut against the card piece (4).

6. A neodymium-iron-boron magnet scrap shredder protection assembly according to claim 5, wherein, The first part (1) has a screw rod assembly (8), the third part (3) has a threaded hole (3c) corresponding to a screw rod (8b) of the screw rod assembly (8), the screw rod (8b) is configured to control the movement of the third part (3) by forward and reverse rotation, and the screw rod (8b) is driven by a motor (8a).

7. A neodymium-iron-boron magnet scrap shredder protection assembly according to claim 1, wherein, The cross section of the card piece (4) is a triangle with a sharp mouth outward.

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