Roots blower wind power balance structure

Abstract

The utility model provides a Roots blower wind power balancing structure which comprises an impeller body, a plurality of through holes are formed in the impeller body, fixing rings are movably arranged in the through holes, fixing lead screws are fixedly arranged in the fixing rings, guide rods are symmetrically and fixedly arranged on the fixing rings, balancing weights are movably arranged on the guide rods on the two sides in a sleeved mode, and the balancing weights are arranged on the two sides of the impeller body in a sleeved mode. The balancing weights can be installed in the through holes by arranging the fixing lead screws and the guide rods, the two sides of the balancing weights can be supported and fixed at the same time by arranging the first rotating rings, the second rotating rings and the supporting discs, the positions and the number of the balancing weights on the two sides can be adjusted, convenience and rapidness are achieved, and the practicability is high. By arranging the fixed ring, the rotating ring and the locking block, the angle of the balancing weight can be adjusted by rotating the fixed ring, the accurate adjustability of dynamic balance of the impeller is improved, vibration and stability of the impeller can be effectively controlled, and therefore a stable operation environment is provided for uniform flowing of gas, and the wind power balance effect of the fan is better.

Description

Technical Field

[0001] The utility model relates to the technical field of wind force balance of Roots blowers, in particular to a wind force balance structure of a Roots blower. Background Art

[0002] Roots blower is a twin-rotor compression machine. Its working principle is mainly based on the mutual meshing of two impellers and the small gap between them and the casing and wall panels to form a closed elementary volume, thereby achieving gas compression and transportation. The wind balance of Roots blower mainly depends on the precise design and manufacture of the impeller, as well as the matching accuracy between them. The shape, size and angle of the impeller must be accurately calculated and designed to achieve stable gas compression and transportation. The dynamic balance of the impeller can ensure that the impeller can maintain balance when rotating at high speed, avoiding vibration and noise caused by uneven mass distribution or manufacturing errors. If the impeller is not dynamically balanced, it may cause the impeller to be unstable during rotation, thereby affecting the uniformity of gas flow inside the blower, so the dynamic balance of the impeller will seriously affect the wind balance of the Roots blower.

[0003] Publication No. "CN217712941U" provides a Roots blower impeller dynamic balancing mechanism, including a cylindrical impeller body, a first through hole is provided in the impeller body, an annular platform is fixedly provided at the end of the first through hole, a second through hole is provided on the annular platform coaxially with the first through hole, a threaded hole coaxially with the first through hole is provided on the annular platform, a convex cover adapted to the annular platform is provided at the end of the first through hole, the convex cover is in the shape of a circular convex platform and is provided with a large cylindrical part and a small cylindrical part, a through hole corresponding to the threaded hole on the annular platform is provided on the large cylindrical part, the large cylindrical part matches the first through hole of the impeller, the small cylindrical part matches the second through hole, and a counterweight is connected to the circular surface of the small cylindrical part. A counterweight is provided at the impeller through hole to achieve dynamic balance between the impellers, the annular platform is bolted to the convex cover, and has good sealing performance, which helps to solve the problems of local corrosion and unsightly appearance after drilling.

[0004] However, the above technical solutions and the prior art have the following defects:

[0005] During the use of the above-mentioned impeller dynamic balancing mechanism, the weight can only be counterbalanced by welding, which is not only cumbersome to operate but also inconvenient to adjust. After multiple weldings, the service life and accuracy of the impeller itself may be affected. It is inconvenient for the operator to balance the wind force of the Roots blower by adjusting the dynamic balance of the impeller. Utility Model Content

[0006] The utility model aims to provide a Roots blower wind force balancing structure to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A Roots blower wind force balancing structure comprises an impeller body, a plurality of through holes are formed on the impeller body, a fixing ring is movably arranged in the through hole, a fixing screw is fixedly arranged in the fixing ring, guide rods are symmetrically fixedly arranged on the fixing ring, and counterweight blocks are movably sleeved on the guide rods on both sides;

[0009] An adjusting component, which is arranged on the fixing ring and is used to fix the counterweight and adjust the quantity;

[0010] A rotating assembly is arranged in the through hole and is used for locking and rotating the fixing ring.

[0011] Preferably, the adjustment assembly includes a first rotating ring and a second rotating ring symmetrically threaded on a fixed screw rod, the first rotating ring and the second rotating ring are arranged opposite to each other, support plates are fixedly arranged on the first rotating ring and the second rotating ring, and a mounting groove is opened on the counterweight block.

[0012] Preferably, the rotating assembly includes a supporting ring fixedly arranged in the through hole, a rotating block is fixedly arranged on the supporting ring, a rotating slot for inserting the rotating block is provided on the fixed ring, the rotating block and the rotating slot are both arranged in a circular ring shape, a plurality of locking grooves are equidistantly arranged on the circumference of the through hole, a locking thread groove is provided in the locking groove, a locking bolt is threadedly connected in the locking thread groove, and a locking block is movably sleeved on the locking bolt.

[0013] Preferably, anti-slip patterns are fixedly provided on the surfaces of the first rotating ring and the second rotating ring.

[0014] Preferably, an anti-slip pad is fixedly provided on the surface of the fixing ring in contact with the locking block.

[0015] Preferably, a spacing is provided between the guide rods on both sides so that the counterweight, the first rotating ring and the second rotating ring can pass through.

[0016] Preferably, a plurality of threaded holes are equidistantly arranged on the circumference of one side surface of the through hole, bolts are threadedly connected to the threaded holes, and a sealing cover is movably sleeved on the bolts.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model can install the counterweight block in the through hole by setting a fixed screw rod and a guide rod, and can support and fix both sides of the counterweight block at the same time by setting a first rotating ring, a second rotating ring and a supporting plate, and can also adjust the position and quantity of the counterweight blocks on both sides, which is convenient and quick.

[0019] 2. The utility model provides a fixed ring, a rotating ring and a locking block, and can adjust the angle of the counterweight block by rotating the fixed ring, thereby improving the precise adjustability of the dynamic balance of the impeller, and can effectively control the vibration and stability of the impeller, thereby providing a stable operating environment for the uniform flow of gas, and making the wind force balance effect of the fan better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of the fixing component structure of the utility model;

[0023] Figure 4 It is a three-dimensional schematic diagram of the adjustment component structure of the utility model;

[0024] Figure 5 For the utility model Figure 2 Enlarged schematic diagram of point A inside.

[0025] In the figure: 1. impeller body; 2. through hole; 3. fixing ring; 4. fixing screw; 5. guide rod; 6. counterweight; 7. first rotating ring; 8. second rotating ring; 9. support plate; 10. mounting groove; 11. support ring; 12. rotating block; 13. rotating slot; 14. locking slot; 15. locking threaded groove; 16. locking bolt; 17. locking block; 18. anti-skid pattern; 19. anti-skid pad; 20. threaded hole; 21. bolt; 22. sealing cover. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] See also Figure 1-5 , the utility model provides a technical solution:

[0028] Embodiment 1:

[0029] A Roots blower wind force balancing structure comprises an impeller body 1, a plurality of through holes 2 are formed on the impeller body 1, a fixing ring 3 is movably provided in the through hole 2, a fixing screw 4 is fixedly provided in the fixing ring 3, guide rods 5 are symmetrically fixedly provided on the fixing ring 3, counterweight blocks 6 are movably sleeved on the guide rods 5 on both sides, and mounting grooves 10 are formed on the counterweight blocks 6;

[0030] In this embodiment, the impeller body 1 can rotate in the casing of the Roots blower, and the better the dynamic balance of the impeller body 1 when rotating at high speed, the better the flow uniformity of the gas inside the blower, and the better the wind force balance. The through hole 2 provides space for the installation of the adjustment component and the rotating component. The fixing ring 3 plays a role in fixing and supporting the fixed screw rod 4 and the guide rod 5. The guide rod 5 is arranged on both sides of the fixed screw rod 4, which can support and fix the counterweight 6. The counterweight 6 can be used to adjust the dynamic balance of the impeller body 1. The number is added according to actual needs. The counterweight 6 can contact the fixed screw rod 4 through the installation groove 10, and then be slidably sleeved on the guide rod 5;

[0031] An adjusting component, which is arranged on the fixing ring 3 and is used to fix the counterweight 6 and adjust the quantity;

[0032] The rotating assembly is arranged in the through hole 2 and is used to lock and rotate the fixing ring 3.

[0033] Embodiment 2:

[0034] On the basis of the first embodiment, this embodiment describes one of the implementable structures of the adjustment component, the adjustment component includes a first rotating ring 7 and a second rotating ring 8 symmetrically threaded on the fixed screw rod 4, the first rotating ring 7 and the second rotating ring 8 are arranged opposite to each other, the first rotating ring 7 and the second rotating ring 8 are fixedly provided with a support plate 9, the first rotating ring 7 and the second rotating ring 8 are fixedly provided with anti-slip grooves 18 on the surface, and a spacing is provided between the guide rods 5 on both sides for the counterweight 6, the first rotating ring 7 and the second rotating ring 8 to pass through;

[0035] In this embodiment, the first rotating ring 7 and the second rotating ring 8 are arranged opposite to each other, and there are two of them. The first rotating ring 7 and the second rotating ring 8 can clamp the counterweight 6 in the middle for fixation by rotation. The support plate 9 increases the contact area with the counterweight 6, making the clamping fixation more stable. At the same time, the position of the first rotating ring 7 and the second rotating ring 8 can be adjusted by rotation, so that the position of the counterweight 6 can be adjusted, which improves the adjustment accuracy of the dynamic balance and makes the wind balance effect better. The spacing set between the guide rods 5 can facilitate the installation and disassembly of the counterweight 6, and the setting of the anti-slip pattern 18 can facilitate the operator to rotate the first rotating ring 7 and the second rotating ring 8 more conveniently.

[0036] Embodiment three:

[0037] On the basis of the first embodiment, this embodiment describes one of the implementable structures of the rotating assembly, the rotating assembly includes a support ring 11 fixedly arranged in the through hole 2, a rotating block 12 is fixedly arranged on the support ring 11, a rotating card slot 13 for inserting the rotating block 12 is provided on the fixed ring 3, the rotating block 12 and the rotating card slot 13 are both arranged in a circular ring shape, a plurality of locking grooves 14 are equidistantly arranged on the circumference of the through hole 2, a locking thread groove 15 is provided in the locking groove 14, a locking bolt 16 is provided with a thread connection in the locking thread groove 15, a locking block 17 is movably sleeved on the locking bolt 16, and an anti-slip pad 19 is fixedly provided on the surface of the fixed ring 3 in contact with the locking block 17;

[0038] In this embodiment, the support ring 11 can limit and support the fixed ring 3, and the rotating block 12 on the support ring 11 can be inserted into the rotating slot 13 on the fixed ring 3, so that the support ring 11 supports the fixed ring 3 more stably. At the same time, the fixed ring 3 can also rotate on the support ring 11, thereby driving the internal counterweight block 6 to adjust the angle, so that the dynamic balance adjustment accuracy of the impeller body 1 is further improved;

[0039] The number of locking grooves 14 is not less than four, and they are equidistantly arranged in the through hole 2. The locking grooves 14 are used to provide space for the locking bolts 16 and the locking blocks 17. The locking bolts 16 can be threadedly connected with the locking thread grooves 15, thereby driving the locking blocks 17 on the locking bolts 16 to press down and fix the fixing ring 3. At the same time, the anti-slip pads 19 arranged on the fixing ring 3 make the locking bolts 16 and the locking blocks 17 have a better locking effect on the fixing ring 3, which can prevent the fixing ring 3 from vibrating when the impeller body 1 rotates, thereby improving the dynamic balancing effect of the impeller body 1, thereby improving the wind balancing effect.

[0040] Embodiment 4:

[0041] On the basis of the first embodiment, this embodiment describes one possible structure of the sealing cover 22. A plurality of threaded holes 20 are equidistantly provided on the surface of one side of the through hole 2. Bolts 21 are connected to the threaded holes 20. The sealing cover 22 is movably sleeved on the bolts 21.

[0042] In this embodiment, the sealing cover 22 is threadedly arranged on the surface of the through hole 2 through the bolts 21 and the threaded holes 20, so as to block and protect the through hole 2, improve the sealing performance inside the through hole 2, and help improve the wind balance effect.

[0043] The fixed screw rod 4, the counterweight block 6, the locking thread groove 15, the locking bolt 16, the threaded hole 20, the bolt 21 and the sealing cover 22 are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art, and the specifications and models of the fixed screw rod 4, the counterweight block 6, the locking thread groove 15, the locking bolt 16, the threaded hole 20, the bolt 21 and the sealing cover 22 are well known to those skilled in the art and will not be described in detail here.

[0044] Working principle: During use, the sealing cover 22 can protect and seal the through hole 2 to increase the service life of the structure. The sealing cover 22 can be removed by the bolt 21. Inside the through hole 2, the counterweight 6 can be sleeved on the guide rods 5 on both sides. The counterweight 6 is clamped and fixed by rotating the first rotating ring 7 and the second rotating ring 8, and the position is adjusted at the same time. The operator can adjust the number and position of the counterweights 6 on both sides according to actual needs. After removing the locking block 17 and the locking bolt 16 from the locking thread groove 15, the fixing ring 3 can be rotated to adjust the angle of the counterweight 6, thereby improving the dynamic balancing adjustment accuracy of the impeller body 1, thereby being able to effectively control the vibration and stability of the impeller, provide a stable operating environment for the uniform flow of gas, and make the wind force balancing effect of the fan better.

[0045] 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 Roots blower wind balance structure, comprising an impeller body (1), characterized in that: The impeller body (1) is provided with a plurality of through holes (2), a fixing ring (3) is movably arranged in the through hole (2), a fixing screw (4) is fixedly arranged in the fixing ring (3), guide rods (5) are symmetrically fixedly arranged on the fixing ring (3), and counterweight blocks (6) are movably sleeved on the guide rods (5) on both sides; An adjustment component, the adjustment component is arranged on the fixing ring (3) and is used to fix the counterweight (6) and adjust the quantity; A rotating assembly is arranged in the through hole (2) and is used to lock and rotate the fixing ring (3).

2. A Roots blower wind balance structure according to claim 1, characterized in that: The adjustment assembly comprises a first rotating ring (7) and a second rotating ring (8) which are symmetrically threadedly sleeved on a fixed screw rod (4); the first rotating ring (7) and the second rotating ring (8) are arranged opposite to each other; a support plate (9) is fixedly arranged on the first rotating ring (7) and the second rotating ring (8); and a mounting groove (10) is provided on the counterweight block (6).

3. The wind force balance structure of a Roots blower according to claim 1, characterized in that: The rotating assembly comprises a support ring (11) fixedly arranged in the through hole (2), a rotating block (12) fixedly arranged on the support ring (11), a rotating slot (13) for the rotating block (12) to be inserted into the fixed ring (3), the rotating block (12) and the rotating slot (13) both being arranged in annular shapes, a plurality of locking grooves (14) equidistantly arranged on the circumference of the through hole (2), a locking thread groove (15) arranged in the locking groove (14), a locking bolt (16) being arranged in a threaded connection in the locking thread groove (15), and a locking block (17) being movably sleeved on the locking bolt (16).

4. A Roots blower wind force balance structure according to claim 2, characterized in that: Anti-slip grooves (18) are fixedly arranged on the surfaces of the first rotating ring (7) and the second rotating ring (8).

5. The wind force balancing structure of a Roots blower according to claim 3 is characterized in that: An anti-slip pad (19) is fixedly arranged on the surface of the fixing ring (3) that contacts the locking block (17).

6. A Roots blower wind force balancing structure according to claim 2, characterized in that: A spacing is provided between the guide rods (5) on both sides so as to allow the counterweight (6), the first rotating ring (7) and the second rotating ring (8) to pass through.

7. The wind force balance structure of a Roots blower according to claim 1, characterized in that: A plurality of threaded holes (20) are equidistantly arranged on the circumference of one side surface of the through hole (2), a bolt (21) is connected to the inner thread of the threaded hole (20), and a sealing cover (22) is movably sleeved on the bolt (21).

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