Split type spiral blade convenient to replace

Abstract

The utility model relates to the technical field of spiral blades, and discloses a split type spiral blade convenient to replace, which comprises a transmission shaft, a spiral blade is arranged outside the transmission shaft, a spiral mounting groove is arranged on the surface of the transmission shaft, and the spiral blade is positioned inside the spiral mounting groove. A butt-joint groove is formed in the surface of the left end of each spiral blade, a first trapezoidal block is arranged in each butt-joint groove, through cooperation of a round rod and a positioning groove, the spiral blades can be preliminarily positioned during installation, and when two spiral blades are connected subsequently, the first trapezoidal block is arranged in each butt-joint groove. The spiral blade and the transmission shaft can be secondarily fixed through the arrangement of the limiting rod and the limiting groove, the spiral blade can be pulled out from the side face after the reinforcing bolt is detached during detachment, the replacement efficiency of the spiral blade by workers is greatly improved, the number of used bolts is greatly reduced, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral blades, in particular to a split spiral blade which is easy to replace. Background Art

[0002] Spiral blades are common equipment in engineering production. They are usually used to convey or stir materials. Since they are in direct contact with the materials and constantly rub against them during operation, spiral blades are a type of wearing part.

[0003] When transporting materials, an integral screw conveyor is mostly used, in which the spiral blades and the drive shaft are fixed by welding, and the blades are also fixed by welding. However, if a single blade is damaged during use, the entire spiral shaft needs to be replaced, and the maintenance cost is high. In addition, most of the split spiral blades on the market are fixed to the drive shaft by bolts when the blades are connected. Since the distance between the blades is too small, the bolt connection method is inconvenient to operate, and it takes a lot of time to disassemble and assemble. It has poor flexibility, is not convenient for replacing the spiral blades, and has poor practicality. In view of this, we propose a split spiral blade that is easy to replace to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a split spiral blade that is easy to replace, so as to solve the problems raised in the above background technology.

[0005] The top of the gear train is equipped with a gear that is adapted to engage the gear of the driven gear and the bottom of the gear train is equipped with a gear that is adapted to engage the gear of the driven gear and the bottom of the gear train is equipped with a gear that is adapted to engage the gear of the driven gear.

[0006] By adopting the above technical solution: through the cooperation of the round rod and the positioning groove, the spiral blade can be initially positioned when it is installed. Later, when the two spiral blades are connected, the spiral blade and the drive shaft can be fixed for a second time through the setting of the limiting rod and the limiting groove. When disassembling, it is only necessary to remove the reinforcement bolts and pull out the spiral blade from the side, which greatly improves the efficiency of the staff in replacing the spiral blade.

[0007] Preferably, the reinforcement component includes a limit rod, which is slidably connected to the inside of the circular groove, and a groove is provided inside the sliding groove, and the groove is communicated with the circular groove. The limit rod extends into the inside of the groove, and the surface of the circular rod located inside the groove is fixedly connected with a second trapezoidal block, and the side wall of the spiral mounting groove is provided with a limit groove, and the limit groove and the limit rod are adapted to each other, and the right end of the spiral blade is fixedly connected with a docking block, and the docking block is adapted to the docking groove.

[0008] By adopting the above technical solution, the stability of the connection between the spiral blade and the transmission shaft is further improved by setting the reinforcement component.

[0009] Preferably, a guide groove is provided on the inner wall of the circular groove, a guide rod is fixedly connected to the inside of the guide groove, a guide plate is slidingly sleeved on the outside of the guide rod, and the guide plate is slidably connected to the inside of the guide groove and fixedly connected to the limit rod.

[0010] By adopting the above technical solution, the limiting rod will drive the guide plate to slide inside the guide groove during its movement, and the moving direction of the guide plate will be limited.

[0011] Preferably, a second spring is fixedly connected between the guide plate and the inner wall of the guide groove, and the second spring is sleeved on the outside of the guide rod.

[0012] By adopting the above technical solution, the setting of the second spring facilitates the resetting of the limit rod.

[0013] Preferably, a first threaded hole is provided on the left end surface of the spiral blade, the first threaded hole is connected to the docking groove, a second threaded hole is provided inside the docking block, a reinforcement bolt is provided inside the first threaded hole, and the reinforcement bolt is threadedly connected to the first threaded hole and the second threaded hole respectively.

[0014] By adopting the above technical solution: the stability of the connection between the spiral blades is further ensured by the setting of the reinforcement bolts, thereby ensuring the stability of the device during use, and also further improving the stability of the connection between the spiral blades and the transmission shaft.

[0015] Compared with the prior art, the present invention provides a split spiral blade that is easy to replace, which has the following beneficial effects:

[0016] 1. The split spiral blade that is easy to replace can perform preliminary positioning when installing the spiral blade through the cooperation of the round rod and the positioning groove. When the two spiral blades are subsequently connected, the spiral blade and the transmission shaft can be fixed for a second time through the setting of the limiting rod and the limiting groove. When disassembling, it is only necessary to remove the reinforcement bolts and then pull out the spiral blade from the side, which greatly improves the efficiency of the staff in replacing the spiral blade, greatly reduces the number of bolts used, and is simple to operate.

[0017] 2. The split spiral blades that are easy to replace further ensure the stability of the connection between the spiral blades by setting the reinforcement bolts, thereby ensuring the stability of the device during use, and also further improving the stability of the connection between the spiral blades and the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a split spiral blade that is easy to replace in the utility model;

[0019] Figure 2 This is a schematic structural diagram of the transmission shaft of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the spiral blade of the utility model;

[0021] Figure 4 This is a first schematic diagram of the cross-sectional structure of the spiral blade of the present invention;

[0022] Figure 5 This is a second schematic diagram of the cross-sectional structure of the spiral blade of the present invention;

[0023] Figure 6 for Figure 4 Enlarged view of point A in the middle;

[0024] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0025] Figure 8 This is a structural diagram of the docking block of the utility model.

[0026] In the figure: 1, transmission shaft; 2, spiral blade; 3, spiral mounting groove; 4, docking groove; 5, first trapezoidal block; 6, sliding groove; 7, round rod; 8, movable chamber; 9, circular plate; 10, first spring;

[0027] 11. Positioning groove; 12. Docking block; 13. Circular groove; 14. Limit rod; 15. Limit groove; 16. Groove; 17. Second trapezoidal block; 18. Guide groove; 19. Guide rod; 20. Guide plate;

[0028] 21. Second spring; 22. First threaded hole; 23. Second threaded hole; 24. Reinforcement bolt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-8 The present invention provides a technical solution: a split spiral blade that is easy to replace, including a transmission shaft 1, a spiral blade 2 is arranged on the outside of the transmission shaft 1, and a spiral mounting groove 3 is opened on the surface of the transmission shaft 1 for positioning and installing the spiral blade 2. The spiral blade 2 is located inside the spiral mounting groove 3, and the left end surface of the spiral blade 2 is provided with a docking groove 4 for facilitating docking between the spiral blades 2. A first trapezoidal block 5 is provided inside the docking groove 4, and the bottom wall of the docking groove 4 is provided with a sliding groove 6 for limiting the movement trajectory of the structure. The first trapezoidal block 5 is slidably connected to the inside of the sliding groove 6, and the lower surface of the first trapezoidal block 5 is fixedly connected to a round rod 7 that plays a connecting role. The spiral blade 2 is inserted into the inside of the spiral mounting groove 3 from the side. At this time, the bottom of the round rod 7 will contact the bottom wall of the spiral mounting groove 3 and push the round rod 7 upward. At this time, the round rod 7 and the first trapezoidal block 5 will both slide inside the sliding groove 6. An active chamber 8 is opened inside the sliding groove 6, and a circular plate 9 that plays a connecting role is fixedly sleeved on the surface of the round rod 7 located inside the active chamber 8.

[0031] A first spring 10 for resetting the round rod 7 is fixedly connected between the circular plate 9 and the bottom wall of the active chamber 8. The first spring 10 is sleeved on the outside of the round rod 7. The inner wall of the spiral mounting groove 3 is provided with a positioning groove 11 for the preliminary positioning of the spiral blade 2. The positioning groove 11 is adapted to the round rod 7. At the same time, the circular plate 9 will slide inside the active chamber 8, and the first spring 10 will be stretched until the round rod 7 moves to the outside of the positioning groove 11. At this time, the round rod 7 will be stuck into the inside of the positioning groove 11 by relying on the elastic force of the first spring 10 itself. At this time, the preliminary installation of the spiral blade 2 is realized. A circular groove 13 is provided on the left end side wall of the spiral blade 2, and a reinforcement component for secondary reinforcement between the spiral blade 2 and the transmission shaft 1 is provided inside the circular groove 13.

[0032] In the above embodiment, the spiral blade 2 is arc-shaped and can be clamped on the outside of the transmission shaft 1 in a horizontal direction.

[0033] The reinforcing assembly includes a limit rod 14, which is slidably connected to the inside of the circular groove 13. The inside of the sliding groove 6 is provided with a groove 16 for limiting the movement trajectory of the structure. The groove 16 and the circular groove 13 are connected, and the limit rod 14 extends into the inside of the groove 16. The surface of the circular rod 7 located inside the groove 16 is fixedly connected to a second trapezoidal block 17. The inclined surface of the second trapezoidal block 17 contacts the limit rod 14. The side wall of the spiral mounting groove 3 is provided with a limit groove 15 for secondary positioning of the spiral blade 2. The limit groove 15 and the limit rod 14 are adapted to the limit rod 14. During the movement of the circular rod 7, the second trapezoidal block 17 will be driven to move inside the groove 16. Because the limit rod 14 contacts the inclined surface of the second trapezoidal block 17, the limit rod 14 will be pushed out when the second trapezoidal block 17 moves. At this time, the limit rod 14 will slide inside the circular groove 13, so that the limit rod 14 is stuck in the inside of the limit groove 15, and the secondary fixation between the spiral blade 2 and the transmission shaft 1 is realized.

[0034] The right end of the spiral blade 2 is fixedly connected with a docking block 12 for facilitating the connection between the spiral blades 2. The docking block 12 is adapted to the docking groove 4. After the preliminary positioning of one spiral blade 2 is completed, the other spiral blade 2 repeats the above steps to be installed and positioned to the right side of the first spiral blade 2. After the right spiral blade 2 is installed, the docking block 12 set at the right end of the left spiral blade 2 will be stuck into the inside of the docking groove 4 opened at the left end of the right spiral blade 2. At this time, the docking block 12 will contact the inclined surface of the first trapezoidal block 5.

[0035] The inner wall of the circular groove 13 is provided with a guide groove 18 for facilitating limiting the movement trajectory of the structure. The inside of the guide groove 18 is fixedly connected to a guide rod 19 which is also used to limit the movement trajectory of the structure. The outside of the guide rod 19 is slidingly sleeved with a guide plate 20. The guide plate 20 is slidably connected to the inside of the guide groove 18 and is fixedly connected to the limit rod 14. A second spring 21 is fixedly connected between the guide plate 20 and the inner wall of the guide groove 18 to facilitate the resetting of the limit rod 14. The second spring 21 is sleeved on the outside of the guide rod 19. During the movement of the limit rod 14, the guide plate 20 will be driven to slide inside the guide groove 18, and the second spring 21 will be deformed.

[0036] A first threaded hole 22 is provided on the left end surface of the spiral blade 2, and the first threaded hole 22 is connected to the docking groove 4. A second threaded hole 23 is provided inside the docking block 12, and a reinforcement bolt 24 is provided inside the first threaded hole 22. The reinforcement bolt 24 is threadedly connected to the first threaded hole 22 and the second threaded hole 23 respectively. By rotating the reinforcement bolt 24, it can be threadedly connected to the inside of the first threaded hole 22 and the second threaded hole 23 in sequence, and finally reinforcement between multiple spiral blades 2 is achieved.

[0037] Working principle:

[0038] When the split spiral blade that is easy to replace is in use, when the staff needs to perform preliminary installation of the spiral blade 2, first, the spiral blade 2 is stuck into the inside of the spiral installation groove 3 from the side. At this time, the bottom of the round rod 7 will contact the bottom wall of the spiral installation groove 3 and push the round rod 7 upward. At this time, the round rod 7 and the first trapezoidal block 5 will slide inside the sliding groove 6. At the same time, the circular plate 9 will slide inside the active chamber 8, and the first spring 10 will be stretched until the round rod 7 moves to the outside of the positioning groove 11. At this time, the elastic force of the first spring 10 itself will make the round rod 7 stuck in the inside of the positioning groove 11, and the preliminary installation of the spiral blade 2 is achieved.

[0039] After the preliminary positioning of one spiral blade 2 is completed, repeat the above steps to install and position the other spiral blade 2 to the right side of the first spiral blade 2. After the right spiral blade 2 is installed, the docking block 12 set at the right end of the left spiral blade 2 will be stuck into the inside of the docking groove 4 opened at the left end of the right spiral blade 2. At this time, the docking block 12 will contact the inclined surface of the first trapezoidal block 5 and press the first trapezoidal block 5 downward. At this time, the first trapezoidal block 5 will slide inside the sliding groove 6, and the first trapezoidal block 5 will drive the round rod 7 to press down. At this time, the round rod 7 will continue to be positioned The inner sliding of the groove 11, during the sliding of the round rod 7, the round rod 7 will synchronously slide inside the movable chamber 8, at this time the first spring 10 will be compressed, and at the same time, during the movement of the round rod 7, the second trapezoidal block 17 will be driven to move inside the groove 16, because the limiting rod 14 is in contact with the inclined surface of the second trapezoidal block 17, the limiting rod 14 will be pushed out when the second trapezoidal block 17 moves, and the limiting rod 14 will slide inside the circular groove 13 until the limiting rod 14 is stuck in the limiting groove 15, at this time, the secondary fixation between the spiral blade 2 and the transmission shaft 1 is achieved;

[0040] At the same time, during the movement of the limiting rod 14, the guide plate 20 will be driven to slide inside the guide groove 18, and the second spring 21 will be deformed;

[0041] Subsequently, the reinforcing bolts 24 are rotated to be threadedly connected to the first threaded hole 22 and the second threaded hole 23 in sequence, thereby finally achieving the reinforcement between the multiple spiral blades 2;

[0042] When the spiral blade 2 needs to be disassembled, the reinforcing bolt 24 is reversed and the spiral blade 2 to be replaced is pulled out from the side.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split spiral blade that is easy to replace, comprising a transmission shaft (1), characterized in that: The transmission shaft (1) is provided with a spiral blade (2) on its exterior, a spiral mounting groove (3) is provided on the surface of the transmission shaft (1), the spiral blade (2) is located inside the spiral mounting groove (3), a docking groove (4) is provided on the left end surface of the spiral blade (2), a first trapezoidal block (5) is provided inside the docking groove (4), a sliding groove (6) is provided on the bottom wall of the docking groove (4), the first trapezoidal block (5) is slidably connected to the inside of the sliding groove (6), and a circular groove is fixedly connected to the lower surface of the first trapezoidal block (5). Rod (7), an active chamber (8) is provided inside the sliding groove (6), a circular plate (9) is fixedly sleeved on the surface of the round rod (7) located inside the active chamber (8), a first spring (10) is fixedly connected between the circular plate (9) and the bottom wall of the active chamber (8), the first spring (10) is sleeved on the outside of the round rod (7), a positioning groove (11) is provided on the inner wall of the spiral mounting groove (3), a circular groove (13) is provided on the left end side wall of the spiral blade (2), and a reinforcement component is provided inside the circular groove (13).

2. The easily replaceable split spiral blade according to claim 1, characterized in that: The reinforcement assembly includes a limiting rod (14), the limiting rod (14) is slidably connected to the inside of the circular groove (13), a groove (16) is provided inside the sliding groove (6), the groove (16) and the circular groove (13) are connected, and the limiting rod (14) extends into the inside of the groove (16).

3. The easily replaceable split spiral blade according to claim 2, characterized in that: The surface of the round rod (7) located inside the groove (16) is fixedly connected to a second trapezoidal block (17), and a limiting groove (15) is provided on the side wall of the spiral mounting groove (3), and the limiting groove (15) is adapted to the limiting rod (14).

4. The easily replaceable split spiral blade according to claim 1, characterized in that: The right end of the spiral blade (2) is fixedly connected with a docking block (12), and the docking block (12) is adapted to the docking groove (4).

5. The easily replaceable split spiral blade according to claim 3, characterized in that: The inner wall of the circular groove (13) is provided with a guide groove (18), the interior of the guide groove (18) is fixedly connected with a guide rod (19), the exterior of the guide rod (19) is slidably sleeved with a guide plate (20), and the guide plate (20) is slidably connected to the interior of the guide groove (18) and fixedly connected to the limiting rod (14).

6. The easily replaceable split spiral blade according to claim 5, characterized in that: A second spring (21) is fixedly connected between the guide plate (20) and the inner wall of the guide groove (18), and the second spring (21) is sleeved on the outside of the guide rod (19).

7. The easily replaceable split spiral blade according to claim 4, characterized in that: A first threaded hole (22) is provided on the left end surface of the spiral blade (2), the first threaded hole (22) is connected to the docking groove (4), and a second threaded hole (23) is provided inside the docking block (12).

8. The easily replaceable split spiral blade according to claim 7, characterized in that: A reinforcing bolt (24) is provided inside the first threaded hole (22), and the reinforcing bolt (24) is threadedly connected to the first threaded hole (22) and the second threaded hole (23) respectively.

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