Hydrogen decrepitation discharging device for neodymium iron boron casting pieces

Abstract

The utility model relates to the technical field of neodymium-iron-boron magnet preparation, and discloses a neodymium-iron-boron casting piece hydrogen decrepitation discharging device which comprises a hydrogen decrepitation chamber, the bottom of the hydrogen decrepitation chamber is fixedly connected with a connecting pipe, and the connecting pipe is in a hollow circular pipe shape; the speed increasing structure can increase the discharging speed of neodymium iron boron powder in the hydrogen decrepitation chamber cavity and comprises a transition bin, a valve plate, a rotating handle, a connecting rod and a contact, the transition bin is fixedly connected to the bottom of the connecting pipe, the valve plate is rotationally connected to the inner wall face of the cavity of the connecting pipe, the rotating handle is rotationally connected to the wall face of the connecting pipe, and the connecting rod is movably connected into the cavity of the connecting pipe; the contact is fixedly connected to the end of the connecting rod and can make contact with the interior of the connecting pipe cavity, when the valve plate is driven by the rotating handle to rotate, the check block can be driven to hit the inner wall face of the connecting pipe cavity, and therefore the speed of the neodymium iron boron powder falling into the transition bin cavity is increased through resonance.

Description

Technical Field

[0001] The utility model belongs to the field of preparation of NdFeB magnets, and in particular relates to a NdFeB casting sheet hydrogen crushing discharging device. Background Art

[0002] Neodymium magnets, also known as NdFeB magnets, are tetragonal crystals formed by neodymium, iron, and boron.

[0003] The prior art (publication number: CN110614374B) discloses a NdFeB casting sheet hydrogen crushing low-oxygen rotary discharging device, which belongs to the technical field of NdFeB magnet preparation, and comprises: a hydrogen crushing furnace barrel; a pressure cover, which is arranged at one end of the hydrogen crushing furnace barrel.

[0004] The prior art prevents air from affecting the magnetic properties of the NdFeB castings through a valve when the NdFeB castings are crushed and discharged. The prior art discharges the NdFeB powder automatically by falling, and this discharge method causes the NdFeB powder to be discharged more slowly, thereby slowing down the working efficiency of the device.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the technical problem that the above-mentioned prior art will slow down the work efficiency during material discharge, the basic concept of the technical solution adopted by the utility model is:

[0007] A device for discharging NdFeB cast sheets by hydrogen crushing, comprising:

[0008] A hydrogen crushing chamber, the bottom of which is fixedly connected with a connecting pipe, which is in the shape of a hollow circular tube;

[0009] The speed-increasing structure can increase the discharge speed of NdFeB powder in the hydrogen crushing chamber. The speed-increasing structure includes: a transition bin, a valve plate, a turning handle, a connecting rod and a contact. The transition bin is fixedly connected to the bottom of the connecting tube, the valve plate is rotatably connected to the inner wall of the connecting tube, the turning handle is rotatably connected to the wall of the connecting tube, the connecting rod is movably connected to the inner cavity of the connecting tube, and the contact is fixedly connected to the end of the connecting rod, and the contact can contact the inner cavity of the connecting tube.

[0010] As a preferred embodiment of the utility model, the transition bin is in the shape of a hollow rectangular cylinder inside the cavity, the top of the transition bin can be connected to the inside of the connecting tube cavity, the top of the transition bin can be fixedly connected to the outer arc surface of the connecting tube, the valve plate is in the shape of a disc, the turning handle is composed of a round rod and a capsule-shaped handle, the round rod of the turning handle can pass through the wall surface of the connecting tube and be fixedly connected to the arc surface of the valve plate, the capsule-shaped handle of the turning handle is on the outer wall surface of the connecting tube, the connecting rod is a rod with a triangular cross-section, the contact is hemispherical, and the arc surface of the contact can contact the inner wall surface of the connecting tube cavity.

[0011] As a preferred embodiment of the utility model, the speed increasing structure also includes a discharge pipe, a sealing groove, a sealing strip, a block, a base block and a block. The discharge pipe is fixedly connected to the bottom of the transition bin, the sealing groove is symmetrically opened on the arc surface of the valve plate, the sealing strip is fixedly connected to the wall surface of the valve plate in the sealing groove, the block is fixedly connected to the arc surface of the circular rod of the turning handle, the base block is fixedly connected to the outer wall surface of the connecting tube, the circular rod of the turning handle can pass through the base block and enter the connecting tube cavity, the block is fixedly connected to the wall surface of the base block, and the block is fixedly connected to the wall surface of the base block horizontally and vertically respectively, and the block can contact the block along the wall surface of the base block.

[0012] As a preferred embodiment of the utility model, the speed increasing structure also includes a fixed rod, a fixed column, a belt rod, an upper groove and a displacement groove. The fixed rod is symmetrically fixedly connected in the cavity of the connecting tube, the fixed column is fixedly connected to the end of the fixed rod, the belt rod is rotatably connected to the wall surface of the fixed column, the connecting rod is fixedly connected to the front wall surface of the belt rod, the upper groove is penetrated and opened at the upper position of the side wall surface of the belt rod, and the displacement groove is penetrated and opened at the lower position of the side wall surface of the belt rod.

[0013] As a preferred embodiment of the utility model, the solid column is cylindrical, and the two ends of the solid column are respectively fixedly connected to the ends of the symmetrical solid rod, the upper groove is a circular groove, and the belt rod is rotatably connected to the eccentric bottom of the upper groove and the solid rod.

[0014] As a preferred embodiment of the utility model, the displacement groove is a capsule-shaped groove, the solid column slides in the displacement groove, and when the valve plate blocks the connecting tube cavity, the rod will be in a vertical state, and the connecting rod is obliquely placed on the wall of the rod.

[0015] As a preferred embodiment of the utility model, the discharge pipe is in the shape of a circular tube, the top of the discharge pipe can be connected to the bottom of the transition bin cavity, the inner and outer wall surfaces of the discharge pipe cavity are provided with the same structure as the inner and outer wall surfaces of the connecting pipe cavity, a rectangular groove is provided on the side wall surface of the transition bin, and a window is fixedly connected to the rectangular groove on the wall surface of the transition bin.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. By setting the speed increasing structure, not only can the NdFeB powder be prevented from contacting the air and preventing the air from entering the hydrogen crushing chamber, but also the speed of the NdFeB powder being discharged from the hydrogen crushing chamber can be accelerated, because when the valve plate is driven to rotate by the turning handle, it will also drive the block to hit the inner wall of the connecting tube cavity, thereby utilizing resonance to increase the speed of the NdFeB powder falling into the transition chamber cavity. Therefore, compared with the prior art, this scheme will not slow down the work efficiency when the NdFeB powder is discharged.

[0018] 2. The discharge pipe can prevent air from entering the valve plate cavity, and the discharge speed of NdFeB powder in the transition chamber cavity can be further increased by striking the discharge pipe cavity, and the condition in the transition chamber cavity can be accurately observed through the transparent window.

[0019] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached picture:

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 This is a cross-sectional view of the transition chamber of the utility model;

[0023] Figure 3 This is a disassembled diagram of the valve plate and connecting pipe of the utility model;

[0024] Figure 4 This is a three-dimensional view of the bottom of the tube cavity of the utility model;

[0025] Figure 5 This is a schematic diagram of the exploded view of the fixed rod and the belt rod of the utility model.

[0026] In the figure: 20, hydrogen crushing chamber; 21, connecting pipe; 22, transition chamber; 23, window; 24, discharge pipe; 30, valve plate; 31, sealing groove; 32, sealing strip; 33, turning handle; 34, blocking block; 35, base block; 36, stopper; 40, fixing rod; 41, fixing column; 42, belt rod; 43, upper groove; 44, displacement groove; 45, connecting rod; 46, contact. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, a hydrogen crushing and discharging device for NdFeB casting sheets, a hydrogen crushing chamber 20, a connecting pipe 21 is fixedly connected to the bottom of the hydrogen crushing chamber 20, and the connecting pipe 21 is in the shape of a hollow circular tube. The hydrogen crushing chamber 20 is an existing technology that can hydrogen crush NdFeB casting sheets. This is an existing technology, so it will not be described here.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the speed-increasing structure can increase the discharge speed of NdFeB powder in the hydrogen crushing chamber 20. The speed-increasing structure includes: a transition bin 22, a valve plate 30, a turning handle 33, a connecting rod 45 and a contact 46. The transition bin 22 is fixedly connected to the bottom of the connecting tube 21, the valve plate 30 is rotatably connected to the inner wall of the cavity of the connecting tube 21, the turning handle 33 is rotatably connected to the wall of the connecting tube 21, the connecting rod 45 is movably connected to the cavity of the connecting tube 21, and the contact 46 is fixedly connected to the end of the connecting rod 45. The contact 46 can contact the cavity of the connecting tube 21.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the transition chamber 22 is in the shape of a rectangular cylinder with a hollow cavity, the top of the transition chamber 22 can be connected to the cavity of the connecting tube 21, the top of the transition chamber 22 can be fixedly connected to the outer arc surface of the connecting tube 21, the valve plate 30 is in the shape of a disc, the turning handle 33 is composed of a round rod and a capsule-shaped handle, the round rod of the turning handle 33 can pass through the wall of the connecting tube 21 and be fixedly connected to the arc surface of the valve plate 30, the capsule-shaped handle of the turning handle 33 is on the outer wall of the connecting tube 21, the connecting rod 45 is a rod with a triangular cross-section, the contact 46 is hemispherical, and the arc surface of the contact 46 can be connected to the outer wall of the connecting tube 21. The connecting tube 21 cavity is in contact with the inner wall surface, and the speed increasing structure also includes a discharge pipe 24, a sealing groove 31, a sealing strip 32, a blocking block 34, a base block 35 and a blocking block 36. The discharge pipe 24 is fixedly connected to the bottom of the transition bin 22, the sealing groove 31 is symmetrically opened on the arc surface of the valve plate 30, the sealing strip 32 is fixedly connected to the wall surface of the valve plate 30 in the sealing groove 31, the blocking block 34 is fixedly connected to the arc surface of the circular rod of the turning handle 33, the base block 35 is fixedly connected to the outer wall surface of the connecting tube 21, and the circular rod of the turning handle 33 can pass through the base block 35 and enter the cavity of the connecting tube 21 The stopper 36 is fixedly connected to the wall of the base block 35, and the stopper 36 is fixedly connected to the wall of the base block 35 horizontally and vertically respectively. The block 34 can contact the stopper 36 along the wall of the base block 35. The speed increasing structure also includes a fixed rod 40, a fixed column 41, a belt rod 42, an upper groove 43 and a displacement groove 44. The fixed rod 40 is symmetrically fixedly connected to the cavity of the connecting tube 21, the fixed column 41 is fixedly connected to the end of the fixed rod 40, the belt rod 42 is rotatably connected to the wall of the fixed column 41, the connecting rod 45 is fixedly connected to the front wall of the belt rod 42, and the upper groove 44 is fixedly connected to the front wall of the belt rod 42. 3 is penetrated and opened at the upper position of the side wall surface of the belt rod 42, and the displacement groove 44 is penetrated and opened at the lower position of the side wall surface of the belt rod 42. The fixed column 41 is cylindrical, and the two ends of the fixed column 41 are respectively fixedly connected to the ends of the symmetrical fixed rod 40. The upper groove 43 is a circular groove. The belt rod 42 is rotatably connected to the bottom eccentric part of the fixed rod 40 through the upper groove 43. The displacement groove 44 is a capsule-shaped groove. The fixed column 41 slides in the displacement groove 44. When the valve plate 30 blocks the cavity of the connecting tube 21, the belt rod 42 will be in a vertical state, and the connecting rod 45 is obliquely placed on the wall surface of the belt rod 42;

[0031] In specific use, after the hydrogen crushing chamber 20 hydrogen crushes the NdFeB casting sheet, the transition chamber 22 is first rotated, and the turning handle 33 can drive the valve plate 30 to rotate to a vertical state in the cavity of the connecting tube 21, and the blocking block 34 will contact the vertical block 36. At this time, the crushed NdFeB powder will enter the cavity of the transition chamber 22 from the gap between the valve plate 30 and the cavity of the connecting tube 21. When the valve plate 30 rotates, it can drive the belt rod 42 to move at the same time, and the belt rod 42 can drive the connecting rod 45 on its wall to move, and the connecting rod 45 can drive the contact 46 to knock on the wall surface of the cavity of the connecting tube 21. At this time, the cavity of the connecting tube 21 will be vibrated, and the cavity of the hydrogen crushing chamber 20 will also be vibrated. When the NdFeB powder is vibrated, the falling speed will be accelerated. After the NdFeB powder is emptied from the cavity of the hydrogen crushing chamber 20, the valve plate 30 is turned back to the horizontal state through the turning handle 33. After the valve plate 30 is in the horizontal state, the blocking block 34 will contact the horizontal block 36, and the rod 42 will also drive the contact 46 through the connecting rod 45 not to contact the inner wall of the connecting tube 21 cavity. At this time, the NdFeB powder in the cavity of the transition bin 22 can be discharged from the cavity of the transition bin 22 through the discharge pipe 24;

[0032] In summary, by setting the speed increasing structure, not only can the NdFeB powder be prevented from contacting the air and preventing the air from entering the hydrogen crushing chamber 20, but also the speed of the NdFeB powder being discharged from the hydrogen crushing chamber 20 can be accelerated, because when the valve plate 30 is driven to rotate by the turning handle 33, it will also drive the block 36 to hit the inner wall of the connecting tube 21, thereby utilizing resonance to increase the speed of the NdFeB powder falling into the transition bin 22. Therefore, compared with the prior art, this solution will not slow down the work efficiency when the NdFeB powder is discharged.

[0033] like Figure 1 and Figure 2 As shown, the discharge pipe 24 is in the shape of a circular tube, the top of the discharge pipe 24 can be connected to the bottom of the transition bin 22 cavity, the cavity and outer wall of the discharge pipe 24 are provided with the same structure as the cavity and outer wall of the connecting pipe 21, the side wall of the transition bin 22 is provided with a rectangular groove, and the rectangular groove of the wall of the transition bin 22 is fixedly connected with a viewing window 23;

[0034] In specific use, the window 23 is made of transparent material. When the NdFeB powder enters the cavity of the transition bin 22, the fixed rod 40 in the cavity of the discharge pipe 24 is adjusted through the turning handle 33 on the wall of the discharge pipe 24, so that the NdFeB powder is discharged from the cavity of the transition bin 22 through the discharge pipe 24. When the valve plate 30 in the cavity of the discharge pipe 24 is adjusted, the stopper 36 in the cavity of the discharge pipe 24 is also driven to hit the inner wall of the cavity of the discharge pipe 24, thereby vibrating the transition bin 22 and the NdFeB powder in the cavity of the discharge pipe 24.

[0035] In summary, by setting up the discharge pipe 24, air can be prevented from entering the cavity of the valve plate 30, and by striking the cavity of the discharge pipe 24, the discharge speed of the NdFeB powder in the cavity of the transition bin 22 is further increased, and the condition in the cavity of the transition bin 22 can be accurately observed through the transparent window 23.

[0036] Working principle: After hydrogen crushing of NdFeB casting sheets in hydrogen crushing chamber 20, firstly rotate transition chamber 22, turning handle 33 can drive valve plate 30 to rotate to vertical state in connecting tube 21 cavity, blocking block 34 will contact vertical blocking block 36, at this time, crushed NdFeB powder will enter transition chamber 22 cavity from the gap between valve plate 30 and connecting tube 21 cavity, when valve plate 30 rotates, it can drive belt rod 42 to move at the same time, belt rod 42 can drive connecting rod 45 on its wall to move, connecting rod 45 can drive contact 46 to knock on the inner wall of connecting tube 21 cavity, at this time, the cavity of connecting tube 21 will be vibrated, and the cavity of hydrogen crushing chamber 20 will also be vibrated, when NdFeB powder is vibrated, it will accelerate its falling speed, after NdFeB powder is emptied from the cavity of hydrogen crushing chamber 20, valve plate 30 will pass through The handle 33 is turned back to the horizontal state. After the valve plate 30 is in the horizontal state, the block 34 will contact the horizontal block 36 and the rod 42 will also drive the contact 46 through the connecting rod 45 to not contact the inner wall of the connecting tube 21 cavity. At this time, the NdFeB powder in the transition bin 22 cavity can be discharged from the transition bin 22 cavity through the discharge pipe 24. When the NdFeB powder enters the transition bin 22 cavity, the fixed rod 40 in the discharge pipe 24 cavity is adjusted through the handle 33 on the wall of the discharge pipe 24, so that the NdFeB powder is discharged from the transition bin 22 cavity through the discharge pipe 24. When the valve plate 30 in the discharge pipe 24 cavity is adjusted, the block 36 in the discharge pipe 24 cavity will also be driven to hit the inner wall of the discharge pipe 24 cavity, thereby vibrating the transition bin 22 and the NdFeB powder in the discharge pipe 24 cavity.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for discharging NdFeB casting sheets by hydrogen crushing, characterized in that: include: A hydrogen fragmentation chamber (20), wherein a connecting pipe (21) is fixedly connected to the bottom of the hydrogen fragmentation chamber (20), and the connecting pipe (21) is in the shape of a hollow circular tube; The speed-increasing structure can increase the discharge speed of NdFeB powder in the cavity of the hydrogen crushing chamber (20), and the speed-increasing structure comprises: a transition chamber (22), a valve plate (30), a turning handle (33), a connecting rod (45) and a contact (46), wherein the transition chamber (22) is fixedly connected to the bottom of the connecting tube (21), the valve plate (30) is rotatably connected to the inner wall surface of the cavity of the connecting tube (21), the turning handle (33) is rotatably connected to the wall surface of the connecting tube (21), the connecting rod (45) is movably connected to the cavity of the connecting tube (21), and the contact (46) is fixedly connected to the end of the connecting rod (45), and the contact (46) can contact the cavity of the connecting tube (21).

2. The NdFeB casting sheet hydrogen crushing discharging device according to claim 1, characterized in that: The transition chamber (22) is in the shape of a rectangular cylinder with a hollow cavity. The top of the transition chamber (22) can be connected to the cavity of the connecting tube (21). The top of the transition chamber (22) can be fixedly connected to the outer arc surface of the connecting tube (21). The valve plate (30) is in the shape of a disc. The turning handle (33) is composed of a round rod and a capsule-shaped handle. The round rod of the turning handle (33) can pass through the wall surface of the connecting tube (21) and be fixedly connected to the arc surface of the valve plate (30). The capsule-shaped handle of the turning handle (33) is located on the outer wall surface of the connecting tube (21). The connecting rod (45) is a rod with a triangular cross-section. The contact (46) is in the shape of a hemisphere. The arc surface of the contact (46) can contact the inner wall surface of the cavity of the connecting tube (21).

3. The NdFeB casting sheet hydrogen crushing discharging device according to claim 1, characterized in that: The speed increasing structure further comprises a discharge pipe (24), a sealing groove (31), a sealing strip (32), a blocking block (34), a base block (35) and a blocking block (36); the discharge pipe (24) is fixedly connected to the bottom of the transition bin (22); the sealing groove (31) is symmetrically opened on the arc surface of the valve plate (30); the sealing strip (32) is fixedly connected to the wall surface of the valve plate (30) in the sealing groove (31); the blocking block (34) is fixedly connected to the arc surface of the circular rod of the turning handle (33); the base block (35) is fixedly connected to the outer wall surface of the connecting tube (21); the circular rod of the turning handle (33) can pass through the base block (35) and enter the cavity of the connecting tube (21); the blocking block (36) is fixedly connected to the wall surface of the base block (35); one blocking block (36) is fixedly connected to the wall surface of the base block (35) horizontally and one blocking block (36) is fixedly connected to the wall surface of the base block (35) respectively; and the blocking block (34) can contact the blocking block (36) along the wall surface of the base block (35).

4. The NdFeB casting sheet hydrogen crushing discharging device according to claim 3 is characterized in that: The speed increasing structure further comprises a fixed rod (40), a fixed column (41), a belt rod (42), an upper groove (43) and a displacement groove (44); the fixed rod (40) is symmetrically fixedly connected in the cavity of the connecting tube (21); the fixed column (41) is fixedly connected to the end of the fixed rod (40); the belt rod (42) is rotatably connected to the wall surface of the fixed column (41); the connecting rod (45) is fixedly connected to the front wall surface of the belt rod (42); the upper groove (43) is penetrated and opened at an upper position of the side wall surface of the belt rod (42); and the displacement groove (44) is penetrated and opened at a lower position of the side wall surface of the belt rod (42).

5. The NdFeB casting sheet hydrogen crushing discharging device according to claim 4, characterized in that: The fixed column (41) is cylindrical, and both ends of the fixed column (41) are respectively fixedly connected to the ends of the symmetrical fixed rod (40), the upper groove (43) is a circular groove, and the belt rod (42) is rotatably connected to the eccentric bottom of the upper groove (43) and the fixed rod (40).

6. The NdFeB casting sheet hydrogen crushing discharging device according to claim 4, characterized in that: The displacement groove (44) is a capsule-shaped groove, and the fixed column (41) slides in the displacement groove (44). When the valve plate (30) blocks the cavity of the connecting tube (21), the belt rod (42) is in a vertical state, and the connecting rod (45) is obliquely placed on the wall surface of the belt rod (42).

7. The NdFeB casting sheet hydrogen crushing discharging device according to claim 3, characterized in that: The discharge pipe (24) is in the shape of a circular tube. The top of the discharge pipe (24) can be connected to the bottom of the transition bin (22). The inner and outer wall surfaces of the discharge pipe (24) are provided with the same structure as the inner and outer wall surfaces of the connecting pipe (21). A rectangular groove is provided on the side wall surface of the transition bin (22). A viewing window (23) is fixedly connected to the rectangular groove on the wall surface of the transition bin (22).

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