A kind of reinforcing structure for preventing loosening of blade and shaft core injection connection

Abstract

The utility model belongs to the field of blade and shaft core injection connection technology, specifically speaking is a kind of blade and shaft core injection connection's anti-loose reinforcing structure, including the pivot, the lateral wall of pivot is fixedly connected with the limiting rod;The lateral wall of limiting rod is slidably connected with the sleeve pipe;The lateral wall of sleeve pipe is fixedly connected with the limiting ring, and the limiting ring is set to the size of pivot;The lateral wall of sleeve pipe is injection molded with injection molded blade;The lateral wall of sleeve pipe is fixedly connected with fixed block;First screw is arranged between fixed block and limiting rod;The utility model sets up detachable sleeve pipe as the injection molding main body of injection molded blade, solves the problem that traditional blade and shaft core injection connection mode is not easy to maintain, is favorable to avoid the overall replacement of blade and shaft core, reduces maintenance difficulty and maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding connection technology of blade and shaft core, specifically a loosening prevention and reinforcement structure for injection molding connection of blade and shaft core. Background Technology

[0002] Injection molding connection between blades and shaft is a method of joining blades and shaft together using an injection molding process. After injection molding, the blades and shaft form a single unit with high strength and are not easily broken or damaged. Compared to the traditional method of separately injection molding and then welding, direct injection molding connection between blades and shaft reduces processes, saves time and costs, and improves production efficiency.

[0003] Existing injection-molded connection structures for blades and shafts often use protrusions on the metal shaft to make the connection between the blade and the shaft more stable. However, when the blade expands due to heat, the protrusions inside the blade cannot effectively restrict the expansion. At the same time, since the injection molding connection method connects the blade and the shaft as one unit, whenever the blade is damaged, the user can only replace the blade and the shaft as a whole, which is inconvenient.

[0004] Therefore, this utility model provides an anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The anti-loosening reinforcement structure for injection-molded connection of blades and shafts of this utility model includes a rotating shaft. A limiting rod is fixedly connected to the side wall of the rotating shaft, and two limiting rods are arranged correspondingly. A sleeve is slidably connected to the side wall of the limiting rod. A limiting ring is fixedly connected to the side wall of the sleeve, and the limiting ring is set according to the size of the rotating shaft. An injection-molded blade is injection-molded on the side wall of the sleeve. A fixing block is fixedly connected to the side wall of the sleeve. A first screw is provided between the fixing block and the limiting rod. Through the above structure, a detachable sleeve is set as the injection molding body of the injection-molded blade, solving the problem of difficult maintenance in the traditional injection-molded connection method of blades and shafts. This helps avoid the overall replacement of the blade and shaft, reducing maintenance difficulty and cost.

[0007] Preferably, a clamping strip is rotatably connected to the side wall of the rotating shaft, and multiple clamping strips are arranged in a circumferential array; a locking block is fixed to the end of the clamping strip; a locking platform is formed on the side wall of the fixing block, and multiple locking platforms are respectively arranged to correspond to the size and position of the locking block; a fixing protrusion is fixed to the side wall of the fixing block, and multiple fixing protrusions are respectively arranged to correspond to the position of the locking block; a second screw is threadedly connected between the fixing protrusion and the locking block; through the above structure, the clamping strip is fixed by the locking block and the locking platform, and the clamping strip is further fixed by the second screw, thereby limiting the position of the injection molding blade by means of the contact relationship between the clamping strip and the injection molding blade, which helps to prevent the injection molding blade from being displaced when it is heated and expands, and improves the anti-loosening ability of the injection molding connection structure between the blade and the shaft core.

[0008] Preferably, a clamping groove is fixedly connected to the side wall of the injection-molded blade, and multiple clamping grooves are arranged in a circumferential array; a clamping protrusion is fixedly connected to the side wall of the clamping strip, and the clamping protrusion is set to correspond to the size of the clamping strip; the clamping protrusion is made of plastic material; through the above structure, the clamping groove and clamping protrusion are set, and the clamping protrusion is made of plastic material to optimize the contact relationship between components, avoid slippage, and improve the anti-loosening ability of the structure.

[0009] Preferably, the sleeve has grooves on its sidewall, and multiple grooves are arranged in a circumferential array; an insert is fixed to the inner sidewall of the injection-molded blade; through the above structure, the grooves on the sidewall of the sleeve allow the insert to form on the inner sidewall of the injection-molded blade during the injection molding stage, thereby improving the stability of the injection-molded blade by means of the mutual contact between the insert and the groove, further enhancing the anti-loosening ability of the structure, and helping to extend the service life of the structure.

[0010] Preferably, a clamping pad is fixed to the side wall of the card holder, and the clamping pad is set to the size of the card block; the clamping pad is made of plastic; through the above structure, the clamping pad is set and the clamping pad is made of plastic, ensuring that the clamping strip and the card block can be smoothly positioned, avoiding the card block from getting stuck on the side wall of the fixed block, thus improving the practicality and convenience of the structure.

[0011] Preferably, the rotating shaft, limiting rod, sleeve, limiting ring, and fixing block are made of stainless steel. The use of stainless steel for the rotating shaft, limiting rod, sleeve, limiting ring, and fixing block enhances their structural strength and corrosion resistance, which helps to extend the service life of the structure.

[0012] Preferably, the injection-molded blade is made of glass fiber reinforced AS material; through the above, the use of glass fiber reinforced AS material for the injection-molded blade enhances the tensile strength of the injection-molded blade, reduces the weight of the injection-molded blade, improves the dynamic balance of the injection-molded blade, and helps to improve the stability and durability of the structure.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The anti-loosening reinforcement structure for the injection molding connection between the blade and the shaft described in this utility model solves the problem of difficult maintenance of the traditional injection molding connection method between the blade and the shaft by setting a detachable sleeve as the injection molding body of the injection molded blade. It helps to avoid the overall replacement of the blade and the shaft, and reduces the maintenance difficulty and maintenance cost.

[0015] 2. The anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core described in this utility model, by setting a clamping block and a clamping platform to fix the clamping strip, and further fixing the clamping strip with a second screw, thereby limiting the injection-molded blade by means of the contact relationship between the clamping strip and the injection-molded blade, which helps to prevent the injection-molded blade from shifting when it expands due to heat, thus improving the anti-loosening capability of the injection-molded connection structure between the blade and the shaft core. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the injection-molded blade in this utility model;

[0019] Figure 3 This is a schematic diagram of the clamping strip in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the rotating shaft in this utility model;

[0021] Figure 5 This is a schematic diagram of the sleeve structure in this utility model.

[0022] In the diagram: 1. Rotating shaft; 11. Limiting rod; 12. Sleeve; 13. Limiting ring; 14. Injection molded blade; 15. Fixing block; 16. First screw; 2. Clamping strip; 21. Clamping block; 22. Fixing protrusion; 23. Second screw; 24. Clamping platform; 3. Clamping groove; 31. Clamping protrusion; 4. Insert groove; 41. Inserting block; 5. Clamping pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5 As shown in the figure, an anti-loosening reinforcement structure for injection molding connection between blade and shaft core according to an embodiment of the present invention includes a rotating shaft 1, with limiting rods 11 fixedly connected to the side wall of the rotating shaft 1, and the two limiting rods 11 being arranged correspondingly; a sleeve 12 is slidably connected to the side wall of the limiting rod 11; a limiting ring 13 is fixedly connected to the side wall of the sleeve 12, and the limiting ring 13 is set to correspond to the size of the rotating shaft 1; an injection molded blade 14 is injection molded on the side wall of the sleeve 12; a fixing block 15 is fixedly connected to the side wall of the sleeve 12; a first screw 16 is provided between the fixing block 15 and the limiting rod 11; during operation, the operator can complete the injection molding operation of the injection molded blade 14 on the surface of the sleeve 12, and whenever the sleeve 12 and the limiting ring 13 are damaged, the operator can remove the sleeve 12 and the limiting ring 13. The blade 14 is removed from the end of the rotating shaft 1 and replaced. During the process, the operator can use the sliding connection between the limiting rod 11 and the sleeve 12 to make the limiting ring 13 fixed on the side wall of the sleeve 12 contact the side wall of the rotating shaft 1. Then, the operator can tighten the first screw 16 on the side wall of the fixing block 15. After the first screw 16 is tightened, the sleeve 12 will be fixed. The limiting ring 13 and the fixing block 15 respectively contact the side wall of the injection molded blade 14, which can prevent the injection molded blade 14 from slipping off. With the above structure, the detachable sleeve 12 is set as the injection body of the injection molded blade 14, which solves the problem of difficult maintenance of the traditional blade and shaft core injection molding connection method. It is beneficial to avoid the overall replacement of the blade and shaft core, and reduce the maintenance difficulty and maintenance cost.

[0026] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, a clamping strip 2 is rotatably connected to the side wall of the rotating shaft 1, and multiple clamping strips 2 are arranged in a circumferential array; a locking block 21 is fixed to the end of the clamping strip 2; a locking platform 24 is provided on the side wall of the fixing block 15, and multiple locking platforms 24 are respectively arranged to correspond to the size and position of the locking block 21; a fixing protrusion 22 is fixed to the side wall of the fixing block 15, and multiple fixing protrusions 22 are respectively arranged to correspond to the position of the locking block 21; a second screw 23 is threaded between the fixing protrusion 22 and the locking block 21; during operation, after the sleeve 12 and the rotating shaft 1 are connected and fixed, the operator can rotate the clamping strip 2 until multiple clamping strips 2 respectively contact the surface of the injection molding blade 14. At this time, the locking blocks 21 fixed to the ends of multiple clamping strips 2 will respectively contact the corresponding locking platforms 24. At the same time, since multiple fixing protrusions 22 respectively correspond to the locking platforms 24, the locking platforms 24 will contact the locking platforms 21. The position of block 21 is set, and the fixing protrusion 22 and the clamping block 21 are respectively threaded with a second screw 23. The operator can tighten the second screw 23 to complete the connection and fixation between the clamping strip 2 and the fixing block 15, so that the position of the clamping strip 2 is more stable. After the position of the clamping strip 2 is fixed, whenever the injection blade 14 expands due to temperature, the clamping strip 2 can keep the injection blade 14 in a stable position through contact. Through the above structure, the clamping block 21 and the clamping platform 24 are set to fix the clamping strip 2, and the clamping strip 2 is further fixed by the second screw 23. Then, by means of the contact relationship between the clamping strip 2 and the injection blade 14, the clamping strip 2 limits the injection blade 14, which helps to prevent the injection blade 14 from being displaced when it expands due to heat, and improves the anti-loosening ability of the blade and shaft core injection molding connection structure.

[0027] like Figures 1 to 5 As shown, a clamping groove 3 is fixedly connected to the side wall of the injection-molded blade 14, and multiple clamping grooves 3 are arranged in a circumferential array; a clamping protrusion 31 is fixedly connected to the side wall of the clamping strip 2, and the clamping protrusion 31 is set to correspond to the size of the clamping strip 2; the clamping protrusion 31 is made of plastic; during operation, after the clamping strip 2 is connected and fixed to the fixing block 15, the clamping protrusion 31, which is made of plastic, is fixed to the side wall of the clamping strip 2 and will contact the side wall of the clamping groove 3. The clamping protrusion 31 can replace the clamping strip 2 in contacting the clamping groove 3, which helps to avoid slippage; through the above structure, the clamping groove 3 and the clamping protrusion 31 are set, and the clamping protrusion 31 is made of plastic to optimize the contact relationship between the components, avoid slippage, and improve the anti-loosening ability of the structure.

[0028] like Figures 2 to 5As shown, the sleeve 12 has grooves 4 on its side wall, and multiple grooves 4 are arranged in a circumferential array; an insert 41 is fixed to the inner side wall of the injection molded blade 14; during operation, due to the grooves 4 on the side wall of the sleeve 12, an insert 41 will be formed on the inner side wall of the injection molded blade 14 during the injection molding process. During operation, the grooves 4 and the insert 41 are in contact with each other, which can prevent the injection molded blade 14 from loosening; through the above structure, the grooves 4 are opened on the side wall of the sleeve 12, so that the insert 41 is formed on the inner side wall of the injection molded blade 14 during the injection stage, and the stability of the injection molded blade 14 is improved by the mutual contact between the insert 41 and the grooves 4, which further enhances the anti-loosening ability of the structure and helps to extend the service life of the structure.

[0029] like Figures 3 to 5 As shown, a clamping pad 5 is fixed to the side wall of the card holder 24, and the clamping pad 5 is set to the size of the card block 21. The clamping pad 5 is made of plastic. During operation, the clamping pad 5 fixed to the side wall of the card holder 24 can replace the card holder 24 to contact the card block 21. Since the clamping pad 5 is made of plastic, it can deform during the contact process with the card block 21, thereby allowing the card block 21 to fall into place smoothly. Through the above structure, the clamping pad 5 is set and made of plastic, ensuring that the clamping strip 2 and the card block 21 can fall into place smoothly, avoiding the card block 21 from being stuck on the side wall of the fixing block 15, thus improving the practicality and convenience of the structure.

[0030] like Figures 1 to 5 As shown, the rotating shaft 1, limiting rod 11, sleeve 12, limiting ring 13, and fixing block 15 are made of stainless steel. During operation, the use of stainless steel in the rotating shaft 1, limiting rod 11, sleeve 12, limiting ring 13, and fixing block 15 allows the high structural strength and strong corrosion resistance of stainless steel to be fully utilized. Through the above, the use of stainless steel in the rotating shaft 1, limiting rod 11, sleeve 12, limiting ring 13, and fixing block 15 enhances their structural strength and corrosion resistance, which is beneficial to extending the service life of the structure.

[0031] like Figure 2 As shown, the injection-molded blade 14 is made of glass fiber reinforced AS material. During operation, the injection-molded blade 14 made of glass fiber reinforced AS material can take advantage of the high tensile strength, low density, and strong dynamic balance performance of glass fiber reinforced AS material. Through the above, the use of glass fiber reinforced AS material for injection-molded blade 14 enhances the tensile strength of injection-molded blade 14, reduces the weight of injection-molded blade 14, and improves the dynamic balance of injection-molded blade 14, which is conducive to improving the stability and durability of the structure.

[0032] During operation, the worker can perform injection molding of the blade 14 on the surface of the sleeve 12. Whenever the sleeve 12 or the limiting ring 13 is damaged, the worker can remove the sleeve 12 and the limiting ring 13 from the end of the rotating shaft 1 and replace them. During the process, the worker can use the sliding connection between the limiting rod 11 and the sleeve 12 to make the limiting ring 13, which is fixed to the side wall of the sleeve 12, contact the side wall of the rotating shaft 1. Then, the worker can tighten the first screw 16 on the side wall of the fixing block 15. After the first screw 16 is tightened, the sleeve 12 will be fixed, wherein the limiting ring 13 and the fixing block 15 respectively contact the injection molded blade 14. On the sidewalls, both prevent the injection molding blade 14 from slipping. After the sleeve 12 and the rotating shaft 1 are connected and fixed, the operator can rotate the clamping strip 2 until multiple clamping strips 2 contact the surface of the injection molding blade 14. At this time, the locking blocks 21 fixed to the ends of the multiple clamping strips 2 will contact the corresponding locking platforms 24. Meanwhile, since multiple fixing protrusions 22 are respectively set at the positions of the locking blocks 21, and the fixing protrusions 22 and the locking blocks 21 are respectively threaded with second screws 23, the operator can tighten the second screws 23 to complete the connection and fixation between the clamping strip 2 and the fixing block 15, making the position of the clamping strip 2 more stable. After the position of the clamping strip 2 is fixed, whenever the injection molded blade 14 expands due to temperature, the clamping strip 2 can keep the injection molded blade 14 in a stable position through contact. After the connection and fixation of the clamping strip 2 and the fixing block 15 are completed, it is fixed to the side wall of the clamping strip 2. The clamping protrusion 31 made of plastic material will contact the side wall of the clamping groove 3. The clamping protrusion 31 can replace the clamping strip 2 to contact the clamping groove 3, which helps to avoid slippage. Since the sleeve 12 has a groove 4 on its side wall, during the injection molding process of the injection molded blade 14, the insert 41 will be formed on the inner side wall of the injection molded blade 14. During the operation, the groove 4 and the insert 41 The mutual contact can prevent the injection blade 14 from loosening. The clamping pad 5 fixed to the side wall of the clamping table 24 can replace the clamping table 24 to contact the clamping block 21. Since the clamping pad 5 is made of plastic, the clamping pad 5 can deform during the contact process with the clamping block 21, so that the clamping block 21 can be smoothly placed. The rotating shaft 1, limiting rod 11, sleeve 12, limiting ring 13 and fixing block 15 made of stainless steel can take advantage of the high structural strength and strong corrosion resistance of stainless steel. The injection blade 14 made of glass fiber reinforced AS material can take advantage of the high tensile strength, low density and strong dynamic balance performance of glass fiber reinforced AS material.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforcement structure for preventing loosening of the blade and shaft core injection molding connection, comprising a rotating shaft (1), characterized in that: A limiting rod (11) is fixedly connected to the side wall of the rotating shaft (1), and the two limiting rods (11) are arranged correspondingly; a sleeve (12) is slidably connected to the side wall of the limiting rod (11); a limiting ring (13) is fixedly connected to the side wall of the sleeve (12), and the limiting ring (13) is arranged according to the size of the rotating shaft (1); an injection molded blade (14) is injection molded on the side wall of the sleeve (12); a fixing block (15) is fixedly connected to the side wall of the sleeve (12); a first screw (16) is provided between the fixing block (15) and the limiting rod (11).

2. The anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core according to claim 1, characterized in that: A clamping bar (2) is rotatably connected to the side wall of the rotating shaft (1), and multiple clamping bars (2) are arranged in a circumferential array; a clamping block (21) is fixedly connected to the end of the clamping bar (2); a clamping platform (24) is opened on the side wall of the fixing block (15), and multiple clamping platforms (24) are respectively arranged to correspond to the size and position of the clamping block (21); a fixing protrusion (22) is fixedly connected to the side wall of the fixing block (15), and multiple fixing protrusions (22) are respectively arranged to correspond to the position of the clamping block (21); a second screw (23) is threadedly connected between the fixing protrusion (22) and the clamping block (21).

3. The anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core according to claim 2, characterized in that: The sidewall of the injection molded blade (14) is fixed with a clamping groove (3), and the multiple clamping grooves (3) are arranged in a circumferential array; the sidewall of the clamping strip (2) is fixed with a clamping protrusion (31), and the clamping protrusion (31) is set according to the size of the clamping strip (2); the clamping protrusion (31) is made of plastic.

4. The anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core according to claim 1, characterized in that: The sleeve (12) has a groove (4) on its side wall, and multiple grooves (4) are arranged in a circumferential array; the injection molded blade (14) has an insert (41) fixedly attached to its inner side wall.

5. The anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core according to claim 2, characterized in that: A clamping pad (5) is fixed to the side wall of the card holder (24), and the clamping pad (5) is set to the size of the card block (21); the clamping pad (5) is made of plastic.

6. The anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core according to claim 1, characterized in that: The rotating shaft (1), limiting rod (11), sleeve (12), limiting ring (13), and fixing block (15) are made of stainless steel.

7. The anti-loosening reinforcement structure for the injection-molded connection between the blade and the shaft core according to claim 1, characterized in that: The injection-molded blade (14) is made of glass fiber reinforced AS material.

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