Feeding mechanism and compound preparation thermal cracking equipment

Abstract

The utility model relates to the technical field of thermal cracking equipment, in particular to a feeding mechanism and compound preparation thermal cracking equipment, which comprises a frame body, a hopper is arranged at the top end of the frame body, a conveying screw rod is rotatably connected to the surface of the frame body, and a motor transmission shaft inserting groove is formed in one end of the conveying screw rod; the surface of the conveying screw is sleeved with a driving gear, the surface of the hopper is provided with a shaft hole, a small shaft is rotationally connected into the shaft hole of the hopper, a shaft body of the small shaft is sleeved with a driven gear, the driven gear is meshed with the small shaft, and a shaft body of the small shaft is sleeved with a blade. The blade is rotationally connected into the hopper, and positioning assemblies are arranged at the two ends of the blade; the raw material cutting and dredging device has the beneficial effects that raw materials are cut to be small in size, the raw materials are driven to move downwards through friction force between the side faces of the cutting edges and the raw materials, so that the raw materials are cut and dredged, and unsmooth feeding caused by accumulation of the raw materials at the bottom of the hopper is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal cracking equipment, in particular to a feeding mechanism and thermal cracking equipment for compound preparation. Background Art

[0002] The thermal cracking unit is an important equipment used in the preparation of chemical compounds. Its basic principle is to use high temperature to break the chemical bonds of high molecular compounds to obtain low molecular compounds.

[0003] In the prior art, a screw conveyor is usually used as a loading mechanism for a compound preparation thermal cracking device. The screw conveyor is composed of a frame, a conveying screw, a feed port and a discharge port. A hopper is generally provided at the feed port to conveniently receive the poured raw materials. After the raw materials are poured into the hopper, they enter the feed port from the bottom of the hopper. Then, through the rotation of the conveying screw, the raw materials are pushed from one end of the frame where the feed port is opened to the discharge port, thereby completing the conveying of the raw materials. This conveying method can transport the raw materials from a low place to a high place within a certain range by adjusting the height of the two ends of the frame.

[0004] However, when a screw conveyor is used as a feeding mechanism for a compound preparation pyrolysis device, the position between the bottom end of the hopper and the feed port of the frame is often blocked by accumulation of raw materials due to the narrowing of the inner wall of the hopper, resulting in poor feeding. Utility Model Content

[0005] The purpose of the utility model is to provide a feeding mechanism and a compound preparation thermal cracking device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding mechanism, comprising: a frame, a hopper is arranged at the top of the frame, a conveying screw is rotatably connected on the surface of the frame, a motor drive shaft plug-in slot is opened at one end of the conveying screw, the motor drive shaft plug-in slot is plugged with the motor drive shaft, a driving gear is sleeved on the surface of the conveying screw, an axial hole is opened on the surface of the hopper, a small shaft is rotatably connected in the axial hole of the hopper, a passive gear is sleeved on the shaft body of the small shaft, the passive gear is meshed with the small shaft, a blade is sleeved on the shaft body of the small shaft, the blade is rotatably connected in the hopper, and positioning components are arranged at both ends of the blade.

[0007] Preferably, a bearing is provided between the axial hole of the hopper and the small shaft.

[0008] Preferably, a shaft keyway is provided on the shaft body of the small shaft, one end of a flat key is movably inserted in the shaft keyway, and the other end of the flat key is movably inserted in the blade keyway, and the blade keyway is provided on the surface of the blade.

[0009] Preferably, the positioning assembly includes: a first sleeve and a second sleeve, both of which are semi-annular cylindrical structures, both of which are sleeved on the shaft body of the small shaft, one end of the first sleeve and one end of the second sleeve are hinged, a first connecting seat is fixed on the outer ring surface of the other end of the first sleeve, and a second connecting seat is fixed on the outer ring surface of the other end of the second sleeve, one end of the first sleeve and the second sleeve are both against the surface of the blade, and the other ends of the first sleeve and the second sleeve are both against the inner ring of the bearing of the passive gear.

[0010] Preferably, a plug-in rod is fixed on the surface of the second connecting seat, and a plug-in hole is opened on the surface of the first connecting seat, and the plug-in rod is movably plugged into the plug-in hole.

[0011] Preferably, a block groove is provided on the surface of the plug-in rod, one end of the block is movably inserted in the block groove, the other end of the block extends out of the block groove, the side surface of the end of the block extending out of the block groove abuts against the surface of the first connecting seat, the other side surface of the block is provided with an inclined surface, and a spring is fixed to the end of the block extending into the block groove, and the other end of the spring is fixed to the inner wall of the block groove.

[0012] A compound preparation thermal cracking device comprises the above-mentioned feeding mechanism.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The feeding mechanism and compound preparation thermal cracking equipment proposed by the utility model have a motor transmission shaft plugged into a motor transmission shaft plug-in groove to drive the conveying screw to rotate. After the raw material is poured into the hopper, it enters the frame body through the hopper and is transported by the conveying screw. At the same time, the rotation of the conveying screw drives the small shaft to rotate through the meshing of the active gear and the passive gear, and the small shaft drives the blade to rotate in the hopper. When the raw material is accumulated and blocked in the hopper, the blade of the blade passes over the raw material, which, on the one hand, cuts the raw material to reduce its size, and on the other hand, drives the raw material to move downward through the friction between the side of the blade and the raw material, thereby cutting and unblocking the raw material, preventing the raw material from accumulating at the bottom of the hopper and causing poor feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 4 It is a schematic diagram of the surface structure of the small shaft;

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the positioning component;

[0020] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0021] In the figure: frame 1, hopper 2, conveying screw 3, motor drive shaft plug-in slot 4, driving gear 5, driven gear 6, small shaft 7, shaft keyway 8, flat key 9, blade keyway 10, blade 11, bearing 12, first sleeve 13, second sleeve 14, first connecting seat 15, second connecting seat 16, plug-in rod 17, plug-in hole 18, block slot 19, spring 20, block 21. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figures 1 to 6 The utility model provides a technical solution: a feeding mechanism, comprising: a frame 1, a hopper 2 is arranged at the top of the frame 1, a conveying screw 3 is rotatably connected on the surface of the frame 1, a motor transmission shaft plug-in slot 4 is opened at one end of the conveying screw 3, and the motor transmission shaft plug-in slot 4 is plugged with the motor transmission shaft, a driving gear 5 is sleeved on the surface of the conveying screw 3, an axial hole is opened on the surface of the hopper 2, a small shaft 7 is rotatably connected in the axial hole of the hopper 2, a passive gear 6 is sleeved on the shaft body of the small shaft 7, the passive gear 6 is meshed with the small shaft 7, a blade 11 is sleeved on the shaft body of the small shaft 7, the blade 11 is rotatably connected in the hopper 2, and positioning components are arranged at both ends of the blade 11.

[0025] In actual use, the transmission shaft of the motor is inserted in the motor transmission shaft insertion groove 4 to drive the conveying screw 3 to rotate. After the raw material is poured into the hopper 2, it enters the frame 1 through the hopper 2 and is transported by the conveying screw 3. At the same time, the rotation of the conveying screw 3 drives the small shaft 7 to rotate through the meshing of the active gear 5 and the passive gear 6, and the small shaft 7 drives the blade 11 to rotate in the hopper 2. When the raw material accumulates and clogs in the hopper 2, the blade 11 passes over the raw material. On the one hand, it cuts the raw material to reduce its size. On the other hand, it drives the raw material downward through the friction between the side of the blade and the raw material, thereby cutting and unblocking the raw material, preventing the raw material from accumulating at the bottom of the hopper 2 and causing poor feeding.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, in order to realize axial positioning of the small shaft 7 , a bearing 12 is provided between the axial hole of the hopper 2 and the small shaft 7 .

[0028] The bearing 12 is composed of a bearing inner ring and a bearing outer ring. The bearing inner ring and the bearing outer ring of the bearing 12 can rotate relative to each other and are well lubricated. An interference fit is adopted between the bearing outer ring of the bearing 12 and the shaft hole of the hopper 2. An interference fit is also adopted between the bearing inner ring of the bearing 12 and the small shaft 7. After the small shaft 7 is installed, it will not be subjected to a large axial force under normal working conditions. Therefore, the small shaft 7 can be axially positioned by the friction between the small shaft 7 and the bearing 12 and the friction between the bearing 12 and the inner wall of the shaft hole of the hopper 2.

[0029] Embodiment 3

[0030] On the basis of the second embodiment, in order to enable the blade 11 to rotate along with the small shaft 7, a shaft keyway 8 is provided on the shaft body of the small shaft 7, one end of a flat key 9 is movably inserted in the shaft keyway 8, and the other end of the flat key 9 is movably inserted in the blade keyway 10, and the blade keyway 10 is provided on the surface of the blade 11.

[0031] When the small shaft 7 rotates, the inner wall of the shaft keyway 8 pushes the flat key 9 to rotate along with the small shaft 7, and the flat key 9 generates thrust on the inner wall of the blade keyway 10, so that the blade 11 rotates along with the flat key 9, so that the blade 11 rotates along with the small shaft 7.

[0032] Embodiment 4

[0033] On the basis of Example 3, in order to achieve axial positioning of the blade 11, positioning components are provided at both ends of the blade 11, and the positioning components include: a first sleeve 13 and a second sleeve 14, the first sleeve 13 and the second sleeve 14 are both semi-annular cylindrical structures, the first sleeve 13 and the second sleeve 14 are both sleeved on the shaft body of the small shaft 7, one end of the first sleeve 13 and one end of the second sleeve 14 are hinged, a first connecting seat 15 is fixed on the outer ring surface of the other end of the first sleeve 13, and a second connecting seat 16 is fixed on the outer ring surface of the other end of the second sleeve 14, one end of the first sleeve 13 and the second sleeve 14 are both against the surface of the blade 11, and the other ends of the first sleeve 13 and the second sleeve 14 are both against the inner ring of the bearing of the passive gear 6.

[0034] Both ends of the blade 11 are provided with a first sleeve 13 and a second sleeve 14. When the first sleeve 13 and the second sleeve 14 are spliced ​​together and sleeved on the small shaft 7, one end of the first sleeve 13 and the second sleeve 14 abuts against the blade 11, and the other end abuts against the driven gear 6. Through the cooperation of the two sets of first sleeves 13 and the second sleeve 14, the blade 11 is positioned at a predetermined position to prevent the blade 11 from axially moving and causing the flat key 9 to fall out of the blade keyway 10.

[0035] Embodiment 5

[0036] On the basis of the fourth embodiment, in order to realize convenient replacement of the blade 11, the blade 11 rotates with the small shaft 7, and a shaft key groove 8 is provided on the shaft body of the small shaft 7, and one end of a flat key 9 is movably inserted in the shaft key groove 8, and the other end of the flat key 9 is movably inserted in the blade key groove 10, and the blade key groove 10 is provided on the surface of the blade 11. Positioning components are provided at both ends of the blade 11, and the positioning components include: a first shaft sleeve 13 and a second shaft sleeve 14, the first shaft sleeve 13 and the second shaft sleeve 14 are both semi-annular cylindrical structures, the first shaft sleeve 13 and the second shaft sleeve 14 are both sleeved on the shaft body of the small shaft 7, one end of the first shaft sleeve 13 is hinged to one end of the second shaft sleeve 14, a first connecting seat 15 is fixed on the outer ring surface of the other end of the first shaft sleeve 13, and a second connecting seat 15 is fixed on the outer ring surface of the other end of the second shaft sleeve 14 The connecting seat 16, one end of the first sleeve 13 and the second sleeve 14 are both against the surface of the blade 11, and the other ends of the first sleeve 13 and the second sleeve 14 are both against the inner ring of the bearing of the passive gear 6. A plug-in rod 17 is fixed on the surface of the second connecting seat 16, and a plug-in hole 18 is provided on the surface of the first connecting seat 15. The plug-in rod 17 is movably inserted in the plug-in hole 18, and a block groove 19 is provided on the surface of the plug-in rod 17. One end of a block 21 is movably inserted in the block groove 19, and the other end of the block 21 extends out of the block groove 19. The side surface of one end of the block 21 extending out of the block groove 19 is against the surface of the first connecting seat 15, and the other side surface of the block 21 is provided with an inclined surface. A spring 20 is fixed to one end of the block 21 extending into the block groove 19, and the other end of the spring 20 is fixed to the inner wall of the block groove 19.

[0037] The blade 11 needs to be improved after being used for a period of time. When improving the blade 11, the small shaft 7 needs to be removed from the shaft hole of the hopper 2. At this time, first press the block 21 into the block groove 19, and then the plug-in rod 17 can be pushed out from the plug-in hole 18. As the second connecting seat 16 is separated from the first connecting seat 15, the first sleeve 13 and the second sleeve 14 can be removed from the small shaft 7, and then the end of the small shaft 7 away from the passive gear 6 is pushed in the direction close to the passive gear 6, so that the end of the small shaft 7 away from the passive gear 6 is disengaged from the bearing 12, and then the blade 11 can be removed from the end of the small shaft 7 away from the passive gear 6, and then the new blade 11 is sleeved on the small shaft 7, and the flat key 9 is inserted into the blade keyway 10 opened on the surface of the new blade 11, and then the small shaft 7 is disengaged from the bearing 12. One end is reinserted into the bearing 12, and after the insertion is completed, the two sets of positioning components are installed respectively. When installing the positioning components, the first sleeve 13 and the second sleeve 14 are sleeved on the small shaft 7, and the connecting rod 17 is inserted into the connecting hole 18. When the inclined surface of the block 21 passes over the inner wall of the connecting hole 18, the block 21 is completely pushed into the block groove 19, which compresses the spring 20. When the block 21 moves to the other end of the connecting hole 18, the spring 20 pushes one end of the block 21 out of the block groove 19 under the elastic action, so that the side surface of the end of the block 21 extending out of the block groove 19 is against the surface of the first connecting seat 15, and the limiting between the second connecting seat 16 and the connecting hole 18 is completed again. The first sleeve 13 and the second sleeve 14 are reinstalled on the small shaft 7 to position the new blade 11.

[0038] In actual use, the transmission shaft of the motor is inserted in the motor transmission shaft insertion groove 4 to drive the conveying screw 3 to rotate. After the raw materials are poured into the hopper 2, they enter the frame 1 through the hopper 2 and are transported by the conveying screw 3. At the same time, the rotation of the conveying screw 3 drives the small shaft 7 to rotate through the meshing of the active gear 5 and the passive gear 6, and the small shaft 7 drives the blade 11 to rotate in the hopper 2. When the raw materials are accumulated and blocked in the hopper 2, the blade of the blade 11 passes over the raw materials. On the one hand, the raw materials are cut to reduce the size of the raw materials. On the other hand, the friction between the side of the blade and the raw materials drives the raw materials to move downward, thereby cutting and unblocking the raw materials, preventing the raw materials from accumulating at the bottom of the hopper 2 and causing poor feeding. The bearing 12 is composed of a bearing inner ring and a bearing outer ring. The bearing inner ring and the bearing outer ring of the bearing 12 can rotate relative to each other and are well lubricated. The bearing outer ring of the bearing 12 and the shaft hole of the hopper 2 are interference fit, and the bearing inner ring of the bearing 12 and the small shaft 7 are also By adopting interference fit, after the small shaft 7 is installed, it will not be subjected to a large axial force under normal working conditions, so that the small shaft 7 can be axially positioned by the friction between the small shaft 7 and the bearing 12 and the friction between the bearing 12 and the inner wall of the shaft hole of the hopper 2; when the small shaft 7 rotates, the inner wall of the shaft body keyway 8 pushes the flat key 9 to rotate with the small shaft 7, and the flat key 9 generates a thrust on the inner wall of the blade keyway 10, so that the blade 11 rotates with the flat key 9, so that the blade 11 The blade 11 rotates along with the small shaft 7; both ends of the blade 11 are provided with a first sleeve 13 and a second sleeve 14. When the first sleeve 13 and the second sleeve 14 are spliced ​​together and sleeved on the small shaft 7, one end of the first sleeve 13 and the second sleeve 14 abuts against the blade 11, and the other end abuts against the driven gear 6. Through the cooperation of the two sets of the first sleeve 13 and the second sleeve 14, the blade 11 is positioned at a predetermined position to prevent the blade 11 from axially moving and causing the flat key 9 to fall out of the blade keyway 10;The blade 11 needs to be improved after being used for a period of time. When improving the blade 11, the small shaft 7 needs to be removed from the shaft hole of the hopper 2. At this time, first press the block 21 into the block groove 19, and then the plug-in rod 17 can be pushed out from the plug-in hole 18. As the second connecting seat 16 is separated from the first connecting seat 15, the first sleeve 13 and the second sleeve 14 can be removed from the small shaft 7, and then the end of the small shaft 7 away from the passive gear 6 is pushed in the direction close to the passive gear 6, so that the end of the small shaft 7 away from the passive gear 6 is disengaged from the bearing 12, and then the blade 11 can be removed from the end of the small shaft 7 away from the passive gear 6, and then the new blade 11 is sleeved on the small shaft 7, and the flat key 9 is inserted into the blade keyway 10 opened on the surface of the new blade 11, and then the small shaft 7 is disengaged from the bearing 12. One end is reinserted into the bearing 12. After the insertion is completed, the two sets of positioning components are installed respectively. When installing the positioning components, the first sleeve 13 and the second sleeve 14 are sleeved on the small shaft 7, and the plug rod 17 is inserted into the plug hole 18. When the inclined surface of the block 21 passes over the inner wall of the plug hole 18, the block 21 is completely pushed into the block groove 19, which compresses the spring 20. When the block 21 moves to the other end of the plug hole 18, the spring 20 pushes one end of the block 21 out of the block groove 19 under the elastic action, so that the side of the end of the block 21 extending out of the block groove 19 is against the surface of the first connecting seat 15, and the position limit between the second connecting seat 16 and the plug hole 18 is completed again. The first sleeve 13 and the second sleeve 14 are reinstalled on the small shaft 7 to position the new blade 11. ;

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism, comprising: A frame (1) is provided with a hopper (2) at the top of the frame (1), a conveying screw (3) is rotatably connected on the surface of the frame (1), a motor transmission shaft insertion groove (4) is provided at one end of the conveying screw (3), and a motor transmission shaft is inserted in the motor transmission shaft insertion groove (4), and the characteristic is that: a driving gear (5) is sleeved on the surface of the conveying screw (3), an axial hole is provided on the surface of the hopper (2), a small shaft (7) is rotatably connected in the axial hole of the hopper (2), a driven gear (6) is sleeved on the shaft body of the small shaft (7), the driven gear (6) is meshed with the small shaft (7), a blade (11) is sleeved on the shaft body of the small shaft (7), the blade (11) is rotatably connected in the hopper (2), and positioning components are provided at both ends of the blade (11).

2. A feeding mechanism according to claim 1, characterized in that: A bearing (12) is provided between the shaft hole of the hopper (2) and the small shaft (7).

3. A feeding mechanism according to claim 2, characterized in that: The shaft body of the small shaft (7) is provided with a shaft body keyway (8), one end of a flat key (9) is movably inserted in the shaft body keyway (8), and the other end of the flat key (9) is movably inserted in a blade keyway (10), and the blade keyway (10) is provided on the surface of the blade (11).

4. A feeding mechanism according to claim 1, characterized in that: The positioning assembly comprises: a first shaft sleeve (13) and a second shaft sleeve (14); the first shaft sleeve (13) and the second shaft sleeve (14) are both in the form of a semi-circular cylindrical structure; the first shaft sleeve (13) and the second shaft sleeve (14) are both sleeved on the shaft body of the small shaft (7); one end of the first shaft sleeve (13) and one end of the second shaft sleeve (14) are hinged; a first connecting seat (15) is fixed on the outer ring surface of the other end of the first shaft sleeve (13); a second connecting seat (16) is fixed on the outer ring surface of the other end of the second shaft sleeve (14); one end of the first shaft sleeve (13) and the second shaft sleeve (14) are both against the surface of the blade (11); and the other ends of the first shaft sleeve (13) and the second shaft sleeve (14) are both against the inner ring of the bearing of the passive gear (6).

5. A feeding mechanism according to claim 4, characterized in that: A plug-in rod (17) is fixed on the surface of the second connection seat (16), and a plug-in hole (18) is opened on the surface of the first connection seat (15), and the plug-in rod (17) is movably plugged into the plug-in hole (18).

6. A feeding mechanism according to claim 5, characterized in that: A block groove (19) is provided on the surface of the plug-in rod (17), one end of a block (21) is movably plugged into the block groove (19), the other end of the block (21) extends out of the block groove (19), the side surface of the end of the block (21) extending out of the block groove (19) abuts against the surface of the first connecting seat (15), the other side surface of the block (21) is provided with an inclined surface, one end of the block (21) extending into the block groove (19) is fixed with a spring (20), the other end of the spring (20) is fixed to the inner wall of the block groove (19).

7. A thermal cracking device for preparing a compound, characterized in that: It comprises the feeding mechanism described in any one of claims 1 to 6.

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