Flexible gear assembly and sewage pump thereof

Abstract

The utility model provides a flexible gear assembly and a sewage pump thereof, the sewage pump is used for discharging fluid media mixed with solid-phase objects, the sewage pump comprises a gear assembly composed of a driving wheel and a driven wheel, the gear part of the driving wheel and the gear part of the driven wheel are both springback non-rigid double-arc bevel gears, and the double-arc bevel gears are arranged on the gear part of the driving wheel and the gear part of the driven wheel. When the sewage pump encounters a solid-phase object in a fluid medium, the gear parts of the driving wheel and the driven wheel can avoid and deform the solid-phase object, and the gear parts restore to the original shape after the solid-phase object passes through the gear parts. By adopting the flexible gear assembly, the problem that the gear assembly is damaged due to the fact that solid particles are mixed when the sewage pump treats excrement in a livestock farm is effectively solved, the anti-blocking performance of the sewage pump is improved, the service life of the sewage pump is prolonged, the adaptability of the sewage pump is improved, the performance of the sewage pump is optimized, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pumps, and more specifically to a flexible gear assembly and a sewage pump thereof. Background Art

[0002] In the breeding farm environment, the daily manure production of animals such as chickens, ducks, geese, pigs, etc. is extremely large and concentrated, which poses a major challenge to the efficient and harmless treatment of manure. In order to quickly and effectively remove this manure and prevent it from polluting the environment and spreading diseases, the industry has been seeking an efficient and reliable manure treatment solution. Sewage pumps, with their excellent performance characteristics such as efficient extraction, stable operation, wide adaptability, and high space utilization efficiency, have occupied an important position in this field.

[0003] However, although sewage pumps have shown many advantages in treating manure in breeding farms, their high sensitivity to particulate matter is still a problem that cannot be ignored. In the manure generated in breeding farms, in addition to the liquid components, there are also solid particulate matters from time to time. When these solid particulate matters flow through the sewage pump, they are extremely likely to cause damage to the gear assembly, thereby affecting the normal operation of the sewage pump. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a flexible gear assembly and a sewage pump thereof to solve the problem of damage to the gear assembly caused by the sensitivity of solid particulate matters in manure in the background art.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0006] A flexible gear assembly for pumping a fluid medium, the gear assembly includes a driving wheel, and a driven wheel meshing with the driving wheel. Both the driving wheel and the driven wheel include gear parts, and the gear parts are resilient non-rigid double-arc helical gears;

[0007] When solid-phase substances are mixed in the pumped fluid medium, the gear parts of the driving wheel and the driven wheel will respectively avoid deformation due to the solid-phase substances, and the gear parts will return to their original shapes after the solid-phase substances pass through.

[0008] In a possible implementation, the gear part is processed from an elastic material, and the elastic material is rubber or plastic or silica gel.

[0009] In a possible implementation, the plastic is specifically polyurethane or nylon.

[0010] In a possible implementation, the tip of the gear part is a convex circular arc, and the root of the gear part is a concave circular arc. The tip of the gear part of the driving wheel meshes with and is tangent to the root of the gear part of the driven wheel, and the root of the driving wheel meshes with and is tangent to the tip of the gear part of the driven wheel.

[0011] In a possible implementation, the height of the gear part of the driving wheel is equal to the height of the gear part of the driven wheel.

[0012] In a possible implementation, the number of teeth of the gear part is 3 to 15 teeth.

[0013] In a possible implementation, the number of teeth of the gear part is specifically 5 teeth, or 6 teeth, or 8 teeth, or 10 teeth.

[0014] In a possible implementation, both the driving wheel and the driven wheel further include a shaft part, and the shaft part is fixed in the shaft hole of the gear part.

[0015] In a possible implementation, the fixing method of the shaft part and the gear part is hot melt bonding.

[0016] In a possible implementation, the height of the shaft part of the driving wheel is higher than the height of the shaft part of the driven wheel.

[0017] The present utility model also provides another technical solution:

[0018] A sewage pump includes a pump body and the above-mentioned flexible gear assembly, and the gear assembly is installed in the pump body.

[0019] In a possible implementation, the number of teeth of the gear part in the gear assembly increases as the size of the pump body increases.

[0020] The present utility model provides a flexible gear assembly and its sewage pump. The sewage pump is used to pump a fluid medium mixed with solid-phase substances. The sewage pump includes a gear assembly composed of a driving wheel and a driven wheel. The gear parts of the driving wheel and the driven wheel are both double-arc helical gears that can rebound and are non-rigid. When the sewage pump encounters solid-phase substances in the fluid medium, the gear parts of the driving wheel and the driven wheel will respectively avoid deformation of the solid-phase substances, and the gear parts will return to their original state after the solid-phase substances pass through. By adopting the flexible gear assembly, the problem of damage to the gear assembly caused by solid particles mixed in the treatment of livestock manure by the sewage pump is effectively solved, the anti-blocking performance, service life and adaptability of the sewage pump are improved, its performance is optimized, and the maintenance cost is reduced. Description of the Drawings

[0021] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model and be implemented in accordance with the content of the description, the following is a detailed description of the preferred embodiments of the present utility model in conjunction with the accompanying drawings as follows.

[0022] Figure 1 Schematic diagram of the structure of the gear assembly in Embodiment 1 Figure 1 ;

[0023] Figure 2 Schematic diagram of the structure of the gear assembly in Embodiment 1 Figure 2 ;

[0024] Figure 3 Top view of the structure of the gear assembly in Embodiment 1;

[0025] Figure 4 Schematic diagram of the structure of the driving wheel in Embodiment 1;

[0026] Figure 5 Schematic diagram of the structure of the driven wheel in Embodiment 1;

[0027] Legend: 1 - driving wheel; 2 - driven wheel; 3 - gear part; 31 - tooth tip; 32 - tooth root; 4 - shaft part. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. In addition, for the convenience of description below, the "upper", "lower", "left", "right", etc. cited are consistent with the upper, lower, left, right, etc. of the accompanying drawings themselves. The "first", "second", etc. in the following text are for distinction in description and have no other special meanings.

[0029] In view of the problems existing in the prior art, the present utility model provides a sewage pump. The bracket includes a flexible gear assembly and a pump body, and the specific description is as follows:

[0030] 1 - Flexible gear assembly

[0031] The gear assembly is used for pumping fluid media. The gear assembly includes a driving wheel and a driven wheel meshing with the driving wheel. Both the driving wheel and the driven wheel include gear parts. The gear parts are double - arc helical gears that are resilient and non - rigid. When solid substances are mixed in the pumped fluid media, the gear parts of the driving wheel and the driven wheel will respectively avoid and deform for the solid substances, and the gear parts will return to their original shapes after the solid substances pass through. The height of the gear part of the driving wheel is equal to the height of the gear part of the driven wheel.

[0032] In specific application scenarios, the gear assembly, as an important component of the sewage pump, is mainly composed of a driving wheel and a driven wheel meshing with it. Both the driving wheel and the driven wheel contain a gear part, and the gear part adopts a resilient non-rigid double arc helical gear structure. This gives the driving wheel and the driven wheel a certain deformation ability when subjected to external force, allowing them to adapt to a variety of working environments.

[0033] When sewage pumps process feces mixed with solids, these solids often pose a threat to the gear assembly. However, thanks to the resilient non-rigid characteristics of the gear part, when the solids come into contact with the gear part, the gear part can cleverly avoid and deform. This avoidance deformation mechanism not only effectively prevents the solids from damaging the gear assembly, but also ensures the stable operation of the gear assembly in complex environments, thereby improving the anti-clogging performance of the sewage pump.

[0034] In addition, the design of the flexible gear assembly also brings many advantages to the sewage pump. First, it can extend the service life of the sewage pump, because the gear part can return to its original state after the solid phase passes through, reducing wear and damage; second, the flexible gear assembly enables the sewage pump to better adapt to complex environments such as farms; and further optimize the performance of the sewage pump, improve its drainage efficiency and stability, thereby reducing energy consumption and operating costs. Finally, due to the strong wear resistance of the flexible gear assembly, the cost of repair and replacement is reduced, and the overall maintenance cost of the sewage pump is reduced, which brings significant economic advantages to users.

[0035] In some examples, the gear portion is made of an elastic material, and the elastic material is rubber, plastic, or silicone.

[0036] In some examples, the plastic is specifically polyurethane, or nylon.

[0037] In specific application scenarios, during the design process of the gear assembly, the choice of materials is a key factor in determining its performance and life. When processing feces mixed with solid matter, the metal gears of the transmission are easily impacted and worn by particulate matter, resulting in performance degradation and clogging problems. In order to solve this problem, the present application turns to the use of elastic materials to process the gear part. The use of elastic materials to process the gear part brings many advantages. First, it can significantly improve the impact resistance of the gear, protect the gear from damage by solid particles, and thus improve the anti-clogging performance of the sewage pump. Secondly, the elastic material has good wear resistance, which reduces the long-term operation wear of the gear and extends the service life of the sewage pump.

[0038] Furthermore, rubber, plastic, and silicone are three main choices of elastic materials. Rubber has high elasticity and can withstand large deformations without breaking, effectively absorbing the impact force of solid particles, protecting the gears from damage, and extending their service life. Plastic, especially polyurethane and nylon, has the advantages of light weight, low cost, and easy processing. Polyurethane is wear-resistant and has good elasticity, while nylon has high strength and maintains a certain elasticity. The combination of the two makes the gear part both strong and tough. Silicone is famous for its high elasticity and high-temperature resistance, enabling the gears to remain stable in high-temperature environments and avoiding damage through elastic deformation.

[0039] In addition, the elastic material can be not only rubber, plastic, and silicone, but also other materials. Without affecting the working performance of the gear assembly, those skilled in the art can select the type of elastic material according to actual needs. The change in the type of elastic material does not affect the protection scope of this application.

[0040] In some examples, the tooth tip of the gear part is a convex arc, and the tooth root is a concave arc. The tooth tip of the gear part of the driving wheel meshes and is tangent to the tooth root of the gear part of the driven wheel, and the tooth root of the driving wheel meshes and is tangent to the tooth tip of the gear part of the driven wheel.

[0041] In specific application scenarios, the tooth tips of the gear parts of the driving wheel and the driven wheel are convex arcs, and the tooth roots are concave arcs. This improves the tightness and efficiency of meshing of the gear assembly, enhances the wear resistance of the gears and extends their service life, reduces the impact and damage of solid substances on the gear part, and improves the overall performance and use comfort of the sewage pump.

[0042] In some examples, the driving wheel and the driven wheel also each include a shaft part, and the shaft part is fixed in the shaft hole of the gear part; the height of the shaft part of the driving wheel is higher than the height of the shaft part of the driven wheel.

[0043] In specific application scenarios, the shaft part is made of rigid metal. The shaft part is a key part of the gear assembly, connecting with the gear part to form a complete structure to achieve rotation and power transmission. The shaft part is precisely fixed in the shaft hole of the gear part to ensure a stable connection, improve strength and stability. The shaft part of the driving wheel is higher than that of the driven wheel, which better meets the installation and use requirements of the sewage pump, maintains the best meshing and power transmission efficiency, improves the fitting accuracy, reduces friction and wear, and extends the service life.

[0044] Furthermore, the fixing method of the shaft part and the gear part is hot melt bonding.

[0045] In a specific application scenario, the hot melt bonding method uses high temperature to melt and fix the rubber shaft and the metal shaft. This method has a good fixing effect, with no obvious marks at the connection, ensuring the connection strength. In addition, the fixing method between the shaft part and the gear part can be not only hot melt bonding, but also mechanical fixing, glue bonding, mechanical locking, and key connection, etc. Without affecting the working performance of the gear assembly, those skilled in the art can select the fixing method between the shaft part and the gear part according to actual needs, and the change of the fixing method between the shaft part and the gear part does not affect the protection scope of this application.

[0046] 2 - pump body

[0047] A sewage pump includes a pump body and the above - mentioned flexible gear assembly, and the gear assembly is installed in the pump body.

[0048] In a specific application scenario, in addition to the pump body and the gear assembly, the sewage pump further includes an end cover, a water inlet pipe, a water outlet pipe, and a filter screen. Since these components are well - known to those skilled in the art, this application will not elaborate on them one by one here.

[0049] In some examples, the number of teeth of the gear part in the gear assembly increases as the size of the pump body increases.

[0050] Furthermore, the number of teeth of the gear part is 3 - 15 teeth, specifically 5 teeth, or 6 teeth, or 8 teeth, or 10 teeth.

[0051] In a specific application scenario, when designing the gear assembly, the number of teeth is crucial. The number of teeth needs to match the pump body. A larger pump body requires more teeth to ensure stability and efficiency. The number of teeth is usually between 3 and 15 to balance compactness, transmission efficiency, and manufacturing cost. Appropriate number of teeth can improve efficiency and enable the sewage pump to operate stably. Too many or too few teeth will reduce efficiency. Adjusting the number of teeth can adapt to different environments and requirements. For example, when there are many solid particles, choose a gear with more teeth to improve abrasion resistance and stability. At the same time, the design of the number of teeth should consider the convenience of manufacturing and maintenance to avoid excessive increase in difficulty and cost. Embodiment 1

[0052] Based on the above concept, as Figures 1-5 shown, a specific flexible gear assembly applied to a sewage pump provided in this embodiment, as Figure 1 shown, this gear assembly is used to pump fluid medium, as Figure 4 shown, the gear assembly includes a driving wheel 1, as Figure 5 shown, and a driven wheel 2 meshing with the driving wheel 1. Both the driving wheel 1 and the driven wheel 2 include a gear part 3, and the gear part 3 is a double - arc helical gear that can rebound and is non - rigid;

[0053] When solid-phase substances are mixed in the pumped fluid medium, the respective gear parts 3 of the driving wheel 1 and the driven wheel 2 will avoid deformation due to the solid-phase substances, and the gear parts 3 will return to their original state after the solid-phase substances pass through.

[0054] In the embodiment, the gear part 3 is made of an elastic material, and the elastic material is specifically rubber.

[0055] In the embodiment, as Figure 2 shown, the tooth tip 31 of the gear part 3 is a convex circular arc, and the tooth root 32 thereof is a concave circular arc. As Figure 3 shown, the tooth tip 31 of the gear part 3 of the driving wheel 1 meshes and is tangent to the tooth root 32 of the gear part 3 of the driven wheel 2, and the tooth root 32 of the driving wheel 1 meshes and is tangent to the tooth tip 31 of the gear part 3 of the driven wheel 2.

[0056] In the embodiment, as Figure 1 shown, the height of the gear part 3 of the driving wheel 1 is equal to the height of the gear part 3 of the driven wheel 2.

[0057] In the embodiment, as Figure 3 shown, the number of teeth of the gear part 3 is 6 teeth.

[0058] In the embodiment, as Figure 2 shown, the driving wheel 1 and the driven wheel 2 also each include a shaft part 4, and the shaft part 4 is fixed in the shaft hole of the gear part 3 by hot melt bonding.

[0059] In the embodiment, as Figure 1 shown, the height of the shaft part 4 of the driving wheel 1 is higher than the height of the shaft part 4 of the driven wheel 2.

[0060] The above-described embodiments only express the implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A flexible gear assembly for pumping a fluid medium, characterized in that, The gear assembly includes a driving wheel (1) and a driven wheel (2) meshing with the driving wheel (1). Both the driving wheel (1) and the driven wheel (2) include a gear portion (3), and the gear portion (3) is a resilient non-rigid double circular arc helical gear; When solid matter is mixed in the pumped fluid medium, the gear portions (3) of the driving wheel (1) and the driven wheel (2) respectively will avoid and deform for the solid matter, and the gear portions (3) will return to their original shapes after the solid matter passes through.

2. A flexible gear assembly according to claim 1, characterized in that, The gear portion (3) is processed from an elastic material, and the elastic material is rubber or plastic or silica gel.

3. A flexible gear assembly according to claim 2, characterized in that, The plastic is specifically polyurethane or nylon.

4. A flexible gear assembly according to claim 2, characterized in that, The tooth tip (31) of the gear portion (3) is a convex circular arc, and the tooth root (32) thereof is a concave circular arc. The tooth tip (31) of the gear portion (3) of the driving wheel (1) meshes and is tangent to the tooth root (32) of the gear portion (3) of the driven wheel (2), and the tooth root (32) of the driving wheel (1) meshes and is tangent to the tooth tip (31) of the gear portion (3) of the driven wheel (2).

5. A flexible gear assembly according to claim 4, wherein, The height of the gear portion (3) of the driving wheel (1) is equal to the height of the gear portion (3) of the driven wheel (2).

6. A flexible gear assembly according to claim 1, wherein The number of teeth of the gear portion (3) is 3 to 15 teeth.

7. A flexible gear assembly according to claim 6, characterized in that, The number of teeth of the gear portion (3) is specifically 5 teeth, or 6 teeth, or 8 teeth, or 10 teeth.

8. A flexible gear assembly according to claim 1, wherein, The driving wheel (1) and the driven wheel (2) also each include a shaft portion (4), and the shaft portion (4) is fixed in the shaft hole of the gear portion (3).

9. A flexible gear assembly according to claim 8, wherein The fixing method of the shaft portion (4) and the gear portion (3) is hot melt bonding.

10. A sewage pump, characterized in that, It includes a pump body and the flexible gear assembly according to any one of claims 1 to 8, and the gear assembly is installed in the pump body.

11. A sewage pump according to claim 10, characterized in that, The number of teeth of the gear portion (3) in the gear assembly increases as the size of the pump body increases.

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