Counterweight eccentric integrated part

Abstract

The utility model discloses a counter weight eccentric integrated part which comprises an eccentric part and a counter weight. The eccentric part comprises an eccentric wheel, an eccentric hole is formed in the eccentric wheel and penetrates through the whole eccentric wheel, and the center axis of the eccentric hole and the center axis of the eccentric wheel are parallel and do not coincide. The counter weight is a rotary body, the counter weight is arranged on the eccentric part in a sleeved mode, and the counter weight and the eccentric part are integrally machined. Compared with the traditional split type eccentric and counterweight device, the eccentric and counterweight functions are integrated in one component, so that the internal structure of the water pump is simplified, the assembly difficulty is reduced, the assembly precision and the connection reliability are improved, and the eccentric and counterweight device has outstanding effects and is suitable for popularization and application. The stability and the expected effect can still be kept in the long-term use process. Meanwhile, the part does not need to excessively consume the design cost of technicians on factors such as material selection and thermal expansion, the stability and reliability of the part under different working conditions can also be ensured, and certain economic benefits are achieved for the design cost.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to an eccentric counterweight integrated component. Background Art

[0002] In liquid transmission, water pumps play an important role. In their internal structure, eccentricity and counterweight play a key role. Eccentricity is mainly used to adjust the water flow rate and water pressure, slow down the water flow speed, stabilize the water pressure, and thus control the water flow rate and water pressure; at the same time, the eccentric design can also prevent the water flow from flowing back into the water pump when the water pump is shut down, thus protecting the normal operation of the water pump. The counterweight is used to balance the unbalanced force when the water pump rotates. When the water pump rotor is unbalanced, it will generate vibration and noise, shortening the service life of the water pump. The counterweight generates a reverse centrifugal force by increasing or decreasing its mass, thereby balancing the unbalanced force of the water pump and enabling the water pump to run more smoothly.

[0003] Traditional water pumps, in order to facilitate processing, limit costs, and the operability of assembly methods, adopt the technical solution of: eccentric and counterweight are processed separately and connected by screws. However, with the improvement of the overall performance requirements of water pumps, there are some potential technical problems in the split type. The biggest problem is the assembly accuracy problem. During assembly, it is necessary to ensure that the relative position relationship between them is accurate. If the assembly accuracy is not high, it may cause vibration and noise increase during the operation of the water pump, and even affect the life and performance of the water pump. The second is the connection reliability problem. Although the screw connection is convenient, the connection point is affected by the material, tightening torque, etc. of the screw. After a certain period of use, the eccentric and counterweight components may become loose or fall off, thereby affecting the normal operation of the water pump. In addition, when transporting some special liquids, if the thermal expansion coefficient and mechanical properties of the material are not carefully considered, resulting in a mismatch in the thermal expansion coefficient, it may cause a gap or stress concentration between the eccentric and counterweight components when the temperature changes, thereby affecting the performance and life of the water pump. Finally, although the split design facilitates maintenance and replacement, it may also add some additional operating steps and costs. For example, additional tools and time may be required when removing and replacing eccentric and counterweight components. As labor costs increase, new pressure is also created on the company's production costs. Utility Model Content

[0004] According to the embodiment of the utility model, in order to solve the above-mentioned deficiencies of the prior art, a counterweight eccentric integrated component is provided, which includes an eccentric and a counterweight. The eccentric includes an eccentric wheel, an eccentric hole is provided inside the eccentric wheel, the eccentric hole runs through the entire eccentric wheel, and the central axis of the eccentric hole is parallel to and does not overlap with the central axis of the eccentric wheel; the counterweight is a rotating body, the counterweight is sleeved on the eccentric, and the counterweight and the eccentric are processed in an integrated manner.

[0005] Preferably, the eccentric wheel is in the shape of a cylinder, and the axial length of the cylinder is greater than the axial length of the counterweight.

[0006] Preferably, a recessed portion is provided at a position where the eccentric wheel is longer than the counterweight.

[0007] Preferably, the end surface of the eccentric wheel is provided with a groove, and the groove is provided on the outer edge of the eccentric hole.

[0008] Preferably, the counterweight is a cylinder, and the central axis of the counterweight is parallel to the central axis of the eccentric wheel.

[0009] Preferably, an additional counterweight block is provided on one side of the counterweight.

[0010] Preferably, the additional balancing weight has a material density greater than that of the balancing weight.

[0011] Preferably, the radial length of the additional counterweight is smaller than the radial length of the counterweight.

[0012] Preferably, the outer edge of the additional counterweight block is parallel to the circumferential arc surface of the counterweight, and the two radial sides of the additional counterweight block are cut surfaces.

[0013] Preferably, recesses are respectively provided on the cross-sections on both sides of the additional counterweight block in the radial direction.

[0014] According to the counterweight eccentric integrated component of the embodiment of the utility model, compared with the traditional split eccentric and counterweight, the component adopts an integrated design, integrating the eccentric and counterweight functions into one component, reducing the precision requirements for the assembly parts of the prior art, and also reducing the processing cost. This design not only simplifies the internal structure of the water pump and reduces the difficulty of assembly, but also improves the assembly accuracy and connection reliability. Its outstanding effect is that it can still maintain stability and expected effects during long-term use. At the same time, the component does not need to spend too much design costs on factors such as material selection and thermal expansion of the technicians, and can also ensure its stability and reliability under different working conditions, which has certain economic benefits for the design cost.

[0015] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first structural schematic diagram of an eccentric counterweight integrated component according to an embodiment of the utility model;

[0017] Figure 2 It is a second structural schematic diagram of the eccentric counterweight integrated component according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0019] First, combine Figure 1 , 2 Description The eccentric counterweight integrated component according to the embodiment of the utility model is widely used in industrial processing, liquid transportation, medical equipment and other scenes. In this embodiment, the internal structure of a water pump is taken as an example for description.

[0020] like Figure 1 , 2 As shown, the counterweight eccentric integrated component of the embodiment of the utility model has an eccentric 1 and a counterweight 2.

[0021] Specifically, Figure 1 , 2 As shown, the eccentric 1 includes an eccentric wheel 11, and an eccentric hole 12 is provided inside the eccentric wheel 11. The eccentric hole 12 runs through the entire eccentric wheel 11, providing a channel for the insertion of other components, so as to facilitate the connection with the eccentric wheel 11 and power transmission. The central axis of the eccentric hole 12 is parallel to and does not overlap with the central axis of the eccentric wheel 11, forming an eccentric 1 structure. The design of the eccentric 1 allows the eccentric wheel 11 to generate an unbalanced force when rotating, which is used to produce the required dynamic effect; the counterweight 2 is a rotating body, and the design of the rotating body enables the counterweight 2 to maintain balance when the eccentric wheel 11 rotates, reduce vibration and noise, and improve the stability and reliability of the equipment. The counterweight 2 is sleeved on the eccentric 1, and the counterweight 2 and the eccentric 1 are integrated and processed, which simplifies the internal structure of equipment such as water pumps, reduces the number of parts, reduces the difficulty and complexity of assembly, and can maintain stability and expected effects during long-term use, thereby extending the service life of the equipment.

[0022] Preferably, if Figure 1 , 2 As shown, the eccentric wheel 11 is cylindrical, and the axial length of the cylinder is greater than the axial length of the counterweight 2. The compactness of the overall structure can be maintained and unnecessary material consumption can be reduced.

[0023] Preferably, a recessed portion is provided at a position where the eccentric wheel 11 is longer than the counterweight 2. This can further increase the eccentric effect and improve the dynamic performance of the device. In addition, the design of the recessed portion can also reduce the weight of the parts to a certain extent and reduce the manufacturing cost.

[0024] Preferably, if Figure 1 As shown, the end surface of the eccentric wheel 11 is provided with a groove 13, and the groove 13 is arranged at the outer edge of the eccentric hole 12. The groove 13 is located at the outer edge of the eccentric hole 12, which can be conveniently connected and fixed with other components, thereby improving the flexibility and convenience of assembly.

[0025] Preferably, the counterweight 2 is a cylinder, and the central axis of the counterweight 2 is parallel to the central axis of the eccentric wheel 11. Designing the counterweight 2 in a cylindrical shape and keeping it parallel to the central axis of the eccentric wheel 11 can ensure that the counterweight 2 remains balanced during rotation and reduce vibration and noise. This design can also simplify the manufacturing process and improve production efficiency.

[0026] Preferably, if Figure 2 As shown, an additional counterweight block 3 is provided on one side of the counterweight 2. The total mass of the counterweight 2 can be adjusted as needed, so as to more accurately control the dynamic performance of the equipment. In addition, the design of the additional counterweight block 3 is also convenient for maintenance and replacement in the later stage, thereby improving the maintainability of the equipment.

[0027] Preferably, the material density of the additional counterweight block 3 is greater than that of the counterweight 2. Selecting a material with a density greater than that of the counterweight 2 to make the additional counterweight block 3 can increase the total mass of the counterweight without increasing the volume too much, thereby more effectively adjusting the dynamic performance of the equipment. This design can save space and improve the accuracy of the counterweight.

[0028] Preferably, the radial length of the additional counterweight 3 is less than the radial length of the counterweight 2. This ensures that the additional counterweight 3 can fine-tune the dynamic performance of the device without affecting the overall balance of the counterweight 2. This design can improve the flexibility and applicability of the counterweight.

[0029] Preferably, if Figure 2 As shown, the outer edge 31 of the additional counterweight block 3 is parallel to the circumferential arc surface of the counterweight 2, and the two radial sides of the additional counterweight block 3 are cut surfaces 32. This can ensure that the additional counterweight block 3 and the counterweight 2 are closely fitted, reducing gaps and vibrations. At the same time, the two radial sides of the additional counterweight block 3 are cut surfaces 32, which can be easily connected and fixed with other components, improving the convenience and reliability of assembly.

[0030] Preferably, if Figure 2 As shown, recesses 33 are respectively provided on the cut surfaces on both sides of the radial direction of the additional counterweight block 3. The recesses 33 can further increase the surface area of ​​the part, which is beneficial to heat dissipation and friction reduction. At the same time, the design of the recesses 33 can also reduce the weight of the part to a certain extent and reduce the manufacturing cost. In addition, the recesses 33 can also be used as marks or positioning points to facilitate positioning and identification during assembly and debugging.

[0031] When in use, place the counterweight eccentric integrated component at the designated position of the water pump or other equipment according to the design requirements, and use special tools to fix the integrated component to the equipment to ensure that it is tightly connected to other parts of the equipment, omitting the assembly process between the eccentric and the counterweight, and simplifying the debugging and testing of the equipment.

[0032] Above, refer to Figure 1 , 2The eccentric counterweight integrated component according to the embodiment of the utility model is described. Compared with the traditional split eccentric and counterweight, the component adopts an integrated design, integrating the eccentric and counterweight functions into one component, reducing the precision requirements for the assembly parts of the prior art, and also reducing the processing cost. This design not only simplifies the internal structure of the water pump and reduces the difficulty of assembly, but also improves the assembly accuracy and connection reliability. Its outstanding effect is that it can still maintain stability and expected effects during long-term use. At the same time, the component does not need to spend too much design costs on factors such as material selection and thermal expansion of technicians, and can also ensure its stability and reliability under different working conditions, which has certain economic benefits for the design cost.

[0033] In the description of the present invention, it should be noted that, unless otherwise specified, “plurality” means two or more than two; the orientations or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside”, “top”, and “bottom” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A counterweight eccentric integrated component, characterized in that: Include: Eccentric, the eccentric includes an eccentric wheel, an eccentric hole is provided inside the eccentric wheel, the eccentric hole runs through the entire eccentric wheel, and the central axis of the eccentric hole is parallel to the central axis of the eccentric wheel and does not overlap; The counterweight is a rotating body, the counterweight is sleeved on the eccentric, and the counterweight and the eccentric are integrally processed.

2. The eccentric counterweight assembly as claimed in claim 1, characterized in that: The eccentric wheel is in the shape of a cylinder, and the axial length of the cylinder is greater than the axial length of the counterweight.

3. The eccentric counterweight assembly as claimed in claim 2, characterized in that: A recessed portion is provided at a position where the eccentric wheel is longer than the counterweight.

4. The eccentric counterweight assembly as claimed in claim 3, characterized in that: The end surface of the eccentric wheel is provided with a groove, and the groove is arranged on the outer edge of the eccentric hole.

5. The eccentric counterweight assembly as claimed in claim 1, characterized in that: The counterweight is a column, and the central axis of the counterweight is parallel to the central axis of the eccentric wheel.

6. The eccentric counterweight assembly as claimed in claim 5, characterized in that: An additional counterweight block is arranged on one side of the counterweight.

7. The eccentric counterweight assembly as claimed in claim 6, characterized in that: The additional counterweight block has a material density greater than that of the counterweight.

8. The eccentric counterweight assembly as claimed in claim 6, characterized in that: The radial length of the additional counterweight block is smaller than the radial length of the counterweight.

9. The eccentric counterweight assembly as claimed in claim 8, characterized in that: The outer edge of the additional counterweight block is parallel to the circumferential arc surface of the counterweight, and the two radial sides of the additional counterweight block are cut surfaces.

10. The eccentric counterweight assembly according to claim 9, characterized in that: The sections on both sides of the additional counterweight block in the radial direction are respectively provided with depressions.

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