Fan impeller convenient to adjust balance

Abstract

The utility model provides a fan impeller convenient to adjust balance, which belongs to the technical field of fan impellers and comprises an impeller body, an adjusting counterweight component is arranged on the impeller body and comprises a first inserting rod and a second inserting rod which are arranged in the impeller body, and the first inserting rod is connected with the second inserting rod. Threaded rods are arranged on the opposite inner side faces of the first inserting rod and the second inserting rod correspondingly, a connecting cylinder is arranged outside the two threaded rods, a threaded groove is formed in the connecting cylinder, the two threaded rods are in threaded connection with the connecting cylinder through the threaded groove, a threaded face is arranged on the outer side face of the connecting cylinder, and a balance weight ring is arranged outside the connecting cylinder. According to the impeller, the balance weight can be adjusted in the impeller body, the stability of the impeller body is guaranteed, and the dynamic balance adjusting operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of fan impellers, in particular to a fan impeller which is convenient for adjusting balance. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge the gas. It is a driven fluid machine and is widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling, and for ventilation and air induction of boilers and industrial furnaces. The impellers of existing fan rotors in my country suffer from wear, deformation, corrosion, etc. during use, causing the overall vibration of the fan to exceed the standard, resulting in the equipment and the entire system not being able to operate normally, causing production to be suspended. The main reason is that the fan impeller has rotational imbalance, which requires dynamic balancing adjustment. Some existing fan impellers that are easy to adjust the balance can be adjusted by adding a counterweight ring to the outside of the fan impeller according to the dynamic balance of the fan impeller. However, when adding the counterweight ring, the counterweight rings on both sides of the fan impeller may be different depending on the different weight requirements. When the fan impeller is working, it may tilt to one side, affecting the rotational stability of the fan impeller and being unfavorable for dynamic balancing adjustment. Utility Model Content

[0003] In view of this, the utility model provides a fan impeller with convenient balance adjustment, which can adjust the counterweight inside the impeller body, thereby ensuring the stability of the impeller body and facilitating the dynamic balance adjustment operation.

[0004] In order to solve the above technical problems, the utility model provides a fan impeller with convenient balance adjustment, comprising an impeller body, on which an adjustable counterweight assembly is provided;

[0005] The counterweight adjustment assembly includes a first plug rod and a second plug rod arranged inside the impeller body, and threaded rods are provided on the opposite inner sides of the first plug rod and the second plug rod, and a connecting cylinder is provided on the outside of the two threaded rods, and a threaded groove is provided inside the connecting cylinder. The two threaded rods are threadedly connected to the connecting cylinder through the thread groove, and a threaded surface is provided on the outer side of the connecting cylinder. A counterweight ring is provided on the outside of the connecting cylinder. When performing dynamic balancing adjustment on the fan impeller, the staff can install the impeller body on the drive shaft of the motor, and then the staff can adjust the counterweight according to the edge of the impeller body that is unbalanced during rotation. During operation, the staff can insert the first plug rod into the mounting hole, and then the staff will thread the installed and adjusted connecting tube to the threaded rod of the first plug rod through the threaded groove. After that, the staff can insert the second plug rod and thread the threaded rod of the second plug rod into the threaded groove of the connecting tube to fix the connecting tube, and adjust it to the outer middle position of the impeller body by rotating the connecting tube, so that the impeller body will not be affected by the weight of the connecting tube and tilt to one side during rotation, thereby ensuring the rotation stability of the impeller body. The staff can adjust the number of counterweight rings according to the degree of rotation imbalance of the impeller body.

[0006] The opposite sides of the first plug rod and the second plug rod are hexagonal in shape, and they can be fixed by tools during the installation process, so as to facilitate the assembly of the adjustable counterweight assembly.

[0007] There are multiple mounting holes evenly arranged on the outer edge of the impeller body. The first plug rod and the second plug rod are respectively installed in the corresponding upper and lower mounting holes. The staff can use the mounting holes to adjust the counterweight installation operation according to the rotation conditions at different edges.

[0008] The threaded rods are all threaded with reinforcement nuts, which are tightly connected to the inside of the impeller body. The staff can rotate the reinforcement nuts to make them fit against the surface of the impeller body to further fix the adjustment counterweight assembly.

[0009] The connecting tube is located inside the impeller body, and the counterweight ring is located in the middle of the connecting tube, so that the counterweight ring can always be located in the middle of the impeller body, ensuring the weight balance on both sides of the impeller body.

[0010] The connecting tube is threadedly connected to the counterweight ring through the threaded surface, and the staff can install the counterweight ring in advance according to the dynamic balance situation.

[0011] In summary, compared with the prior art, this application has at least one of the following beneficial technical effects:

[0012] 1. When the utility model is used, the counterweight can be adjusted inside the impeller body, which ensures the stability of the impeller body and is conducive to the dynamic balance adjustment operation.

[0013] 2. When the utility model is used, the threaded rods are all threadedly connected with reinforcement nuts, which are tightly connected to the inside of the impeller body. The staff can rotate the reinforcement nuts to make them fit against the surface of the impeller body, thereby further fixing the adjustable counterweight assembly.

[0014] 3. When the present invention is used, the connecting tube is located inside the impeller body, and the counterweight ring is located in the middle of the connecting tube, so that the counterweight ring can always be located in the middle of the impeller body, ensuring the weight balance on both sides of the impeller body.

[0015] 4. When the utility model is used, the connecting tube is threadedly connected to the counterweight ring through the threaded surface, and the staff can install the counterweight ring in advance according to the dynamic balance situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a detailed structural diagram of the adjustable weighting component of the present utility model;

[0018] Figure 3 This is a detailed structural diagram of the connecting tube of the utility model.

[0019] Explanation of the accompanying drawings: 100, impeller body; 200, mounting hole; 300, adjusting counterweight assembly; 301, first plug rod; 302, second plug rod; 303, threaded rod; 304, connecting tube; 305, threaded groove; 306, threaded surface; 307, counterweight ring; 400, reinforcing nut. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer, the following will be combined with the appended drawings of the embodiment of the present invention. Figure 1-3 , clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field fall within the scope of protection of the present invention.

[0021] According to one embodiment of the present invention, Figure 1-3 As shown: This embodiment provides a fan impeller that is convenient for adjusting balance, including an impeller body 100, on which an adjustable counterweight assembly 300 is provided;

[0022] The weight adjustment assembly 300 includes a first plug rod 301 and a second plug rod 302 arranged inside the impeller body 100, and a threaded rod 303 is provided on the relative inner side surfaces of the first plug rod 301 and the second plug rod 302. A connecting tube 304 is provided on the outside of the two threaded rods 303, and a threaded groove 305 is provided inside the connecting tube 304. The two threaded rods 303 are threadedly connected to the connecting tube 304 through the threaded groove 305. A threaded surface 306 is provided on the outer surface of the connecting tube 304, and a weight ring 307 is provided on the outside of the connecting tube 304. When performing dynamic balancing adjustment on the fan impeller, the staff can install the impeller body 100 on the drive shaft of the motor, and then the staff can adjust the edge of the impeller body 100 according to the imbalance detected during rotation. During the counterweight operation, the staff can insert the first plug rod 301 into the mounting hole 200, and then the staff will thread the installed and adjusted connecting tube 304 to the threaded rod 303 of the first plug rod 301 through the threaded groove 305. After that, the staff can insert the second plug rod 302 and thread the threaded rod 303 of the second plug rod 302 into the threaded groove 305 of the connecting tube 304 to fix the connecting tube 304, and adjust it to the outer middle position of the impeller body 100 by rotating the connecting tube 304, so that the impeller body 100 is not affected by the weight of the connecting tube 304 and tilted to one side during rotation, thereby ensuring the rotational stability of the impeller body 100. The staff can adjust the number of counterweight rings 307 according to the degree of rotation imbalance of the impeller body 100.

[0023] According to another embodiment of the present invention, Figure 1 and Figure 2 As shown, the opposite sides of the first plug rod 301 and the second plug rod 302 are hexagonal in shape. During the installation process, they can be fixed by tools to facilitate the assembly of the adjustable counterweight assembly 300. A plurality of mounting holes 200 are evenly opened on the outer edge of the impeller body 100. The first plug rod 301 and the second plug rod 302 are respectively installed in the corresponding mounting holes 200 at the upper and lower ends. The staff can use the mounting holes 200 to adjust the installation of the counterweight according to the rotation conditions at different edges. The threaded rod 303 is threadedly connected with a reinforcing nut 400, and the reinforcing nut 400 is fixed to the impeller body 100. The interior of the impeller body 100 is tightly connected, and the staff can rotate the reinforcing nut 400 to make it fit against the surface of the impeller body 100 to further fix the adjustment counterweight assembly 300. The connecting tube 304 is located inside the impeller body 100, and the counterweight ring 307 is located in the middle of the connecting tube 304, so that the counterweight ring 307 can always be located in the middle of the impeller body 100, ensuring the weight balance on both sides of the impeller body 100. The connecting tube 304 is threadedly connected to the counterweight ring 307 through the threaded surface 306. The staff can install the counterweight ring 307 in advance according to the dynamic balance situation.

[0024] The utility model is used in the following manner: when the fan impeller is dynamically balanced, the staff can install the impeller body 100 on the drive shaft of the motor, and then the staff can adjust the counterweight according to the edge of the impeller body 100 that is unbalanced during rotation. The staff can insert the first plug rod 301 into the mounting hole 200, and then the staff will thread the installed and adjusted connecting tube 304 to the threaded rod 303 of the first plug rod 301 through the thread groove 305. After that, the staff can insert the second plug rod 302 and thread the threaded rod 303 of the second plug rod 302 into the thread groove 305 of the connecting tube 304 to realize the connection of the connecting tube 304. 04, and adjust it to the middle position of the outside of the impeller body 100 by rotating the connecting tube 304, so that the impeller body 100 is not affected by the weight of the connecting tube 304 and tilted to one side during rotation, ensuring the rotation stability of the impeller body 100, and the staff can adjust the number of counterweight rings 307 according to the degree of rotation imbalance of the impeller body 100. The staff can rotate the reinforcing nut 400 to make it fit with the surface of the impeller body 100, and further fix the adjustment counterweight assembly 300. The utility model can adjust the counterweight inside the impeller body 100, ensure the stability of the impeller body 100, and is conducive to dynamic balance adjustment operations.

[0025] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fan impeller with convenient balance adjustment, comprising an impeller body (100), characterized in that: An adjustable counterweight assembly (300) is provided on the impeller body (100); The adjusting counterweight assembly (300) comprises a first plug rod (301) and a second plug rod (302) arranged inside the impeller body (100); threaded rods (303) are arranged on the opposite inner side surfaces of the first plug rod (301) and the second plug rod (302); a connecting tube (304) is arranged outside the two threaded rods (303); a thread groove (305) is provided inside the connecting tube (304); the two threaded rods (303) are threadedly connected to the connecting tube (304) through the thread groove (305); a threaded surface (306) is provided on the outer side surface of the connecting tube (304); and a counterweight ring (307) is arranged outside the connecting tube (304).

2. A fan impeller with convenient balance adjustment according to claim 1, characterized in that: The opposite sides of the first insertion rod (301) and the second insertion rod (302) are hexagonal in shape.

3. The fan impeller with convenient balance adjustment according to claim 1, characterized in that: A plurality of mounting holes (200) are evenly arranged at the outer edge of the impeller body (100), and the first insertion rod (301) and the second insertion rod (302) are respectively installed in the corresponding mounting holes (200) at the upper and lower ends.

4. The fan impeller with convenient balance adjustment according to claim 1, characterized in that: The threaded rods (303) are all threadedly connected with reinforcement nuts (400), and the reinforcement nuts (400) are tightly connected to the interior of the impeller body (100).

5. The fan impeller with convenient balance adjustment according to claim 1, characterized in that: The connecting cylinder (304) is located inside the impeller body (100), and the counterweight ring (307) is located in the middle of the connecting cylinder (304).

6. The fan impeller with convenient balance adjustment according to claim 1, characterized in that: The connecting tube (304) is threadedly connected to the counterweight ring (307) via a threaded surface (306).

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