Cip return pump with low noise eccentric guide roller

Abstract

The utility model provides a CIP return pump of low noise eccentric guide pulley relates to fluid delivery equipment technical field, including drive motor, the front side fixed connection of drive motor has return pump, the top left side fixed connection of return pump has the water inlet pipe, the top right side fixed connection of return pump has the water outlet pipe, drive motor and the bottom fixed connection of return pump has a buffer support. The utility model discloses through the mutual cooperation between the annular groove on eccentric wheel and annular sound absorption cotton board and the sound absorption coating and honeycomb hole on the outer ring, annular sound absorption cotton board can absorb the partial noise of the liquid, outer ring friction produced when eccentric wheel rotates, sound absorption coating can reduce the friction of outer ring and liquid and weaken the noise propagation, honeycomb hole can carry out multiple reflection to the noise to consume its energy, through this principle, realized the multi -way inhibition to the noise in the pump body, significantly reduced the internal noise when equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport equipment technology, and in particular to a CIP return pump with a low-noise eccentric guide wheel. Background Technology

[0002] CIP return pumps are a type of pump used in industries such as food, beverage, and pharmaceuticals to work with CIP (Cleaning in Place) systems to recover and transport cleaning solutions. During the CIP cleaning process, the cleaning solution washes and cleans the inner walls of the equipment. The role of the CIP return pump is to promptly transport the returned cleaning solution to a designated recovery container or treatment device, enabling the recycling or centralized treatment of the cleaning solution. This improves resource utilization, reduces production costs, and ensures the cleanliness of the production environment.

[0003] Existing CIP return pumps have the following shortcomings:

[0004] Because the internal components of traditional CIP return pumps generate significant noise due to turbulent liquid flow and component friction during operation, and lack targeted internal noise reduction structures, noise pollution is a prominent problem. At the same time, the existing device's vibration damping structure is simple in design and cannot effectively buffer both horizontal and vertical vibrations simultaneously, resulting in significant vibration transmission during equipment operation, which further exacerbates noise and affects the stability and service life of the equipment. Utility Model Content

[0005] This invention proposes a CIP return pump with a low-noise eccentric guide wheel. Through the combination of an internal noise reduction structure and a multi-directional shock absorption and buffer structure, it effectively reduces equipment operating noise and improves shock absorption, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a CIP return pump with a low-noise eccentric guide wheel, including a drive motor, a return pump fixedly connected to the front side of the drive motor, and a buffer support fixedly connected to the bottom of the drive motor and the return pump.

[0007] The return pump includes a pump body, which is fixedly connected to the front side of the drive motor. A connecting shaft is rotatably connected to the middle of the pump body. The rear end of the connecting shaft is fixedly connected to the output shaft of the drive motor. An eccentric wheel is fixedly connected to the outer surface of the connecting shaft. An outer ring is rotatably connected to the outer surface of the eccentric wheel. An annular groove is formed on the outer surface of the eccentric wheel. An annular sound-absorbing cotton board is fixedly connected inside the annular groove. The annular sound-absorbing cotton board is made of glass fiber sound-absorbing cotton. A sound-absorbing coating is fixedly connected to the outer surface of the outer ring. The sound-absorbing coating is made of polytetrafluoroethylene. Several honeycomb holes are formed in an annular array on the inner surface of the outer ring.

[0008] Preferably, an inlet pipe is fixedly connected to the top left side of the return pump, and an outlet pipe is fixedly connected to the top right side of the return pump.

[0009] Preferably, a connecting groove is provided on the upper part of the inside of the pump body, and a rotating column is rotatably connected to the bottom of the connecting groove.

[0010] Preferably, a limiting slide is fixedly connected to the top of the outer ring, and the top of the limiting slide passes through the rotating column and extends into the interior of the connecting groove.

[0011] Preferably, the buffer support includes a sliding sleeve plate, and support plates are fixedly connected to the front and rear sides of the top of the sliding sleeve plate. The front support plate is fixedly connected to the bottom of the return pump, and the rear support plate is fixedly connected to the bottom of the drive motor.

[0012] Preferably, the inner surface of the sliding sleeve is provided with sliding guide rods on both the left and right sides, and the outer surfaces of the two sliding guide rods are slidably connected to a connecting slide plate on both the front and rear sides.

[0013] Preferably, a mounting base is fixedly connected to the bottom of the two connecting slides, and two buffer springs are fixedly connected to the opposite sides of the two connecting slides. The buffer springs are disposed on the outer surface of the sliding guide rod.

[0014] Preferably, the connecting slide plate has connecting holes that extend from front to back on both the left and right sides, and the inner surface of the connecting holes is slidably connected to the outer surface of the sliding guide rod.

[0015] Preferably, a connecting groove is provided at the top center of the connecting slide plate, and a reverse T-shaped slide plate is slidably connected to the top of the inner surface of the connecting groove. The top of the reverse T-shaped slide plate is fixedly connected to the upper surface of the inner wall of the sliding sleeve plate.

[0016] Preferably, the left and right sides of the reverse T-shaped slide are slidably connected with guide posts that run vertically through it. The two guide posts are respectively fixedly connected to the left and right sides inside the connecting groove. The outer surface of the guide posts is provided with a buffer spring II, which is fixedly connected between the bottom of the reverse T-shaped slide and the lower surface of the inner wall of the connecting groove.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. In this utility model, through the cooperation between the annular groove on the eccentric wheel, the annular sound-absorbing cotton plate, the sound-absorbing coating on the outer ring, and the honeycomb holes, the annular sound-absorbing cotton plate can absorb some of the noise generated by the friction between the eccentric wheel and the liquid and the outer ring when the eccentric wheel rotates. The sound-absorbing coating can reduce the friction between the outer ring and the liquid and weaken the transmission of noise. The honeycomb holes can reflect the noise multiple times to consume its energy. Through this principle, multiple ways of suppressing the internal noise of the pump body are realized, which significantly reduces the internal noise of the equipment during operation.

[0019] 2. In this utility model, through the cooperation of the sliding sleeve, support plate, sliding guide rod, connecting slide plate, buffer spring one, reverse T-shaped slide plate, guide post, and buffer spring two, when the equipment generates horizontal vibration, the sliding sleeve drives the sliding guide rod to slide along the connecting slide hole, causing the sliding sleeve and connecting slide plate to compress buffer spring one, utilizing the elastic deformation of the spring to absorb the horizontal vibration energy; when vertical vibration occurs, the sliding sleeve drives the reverse T-shaped slide plate to slide on the guide post, compressing buffer spring two, utilizing the spring deformation to absorb the vertical vibration energy. Through this principle, effective buffering of horizontal and vertical vibrations is achieved, reducing vibration transmission, further improving the noise reduction effect of the equipment, and enhancing the stability of equipment operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the CIP return pump with low-noise eccentric guide wheel of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the return pump of this utility model;

[0022] Figure 3 This is a schematic diagram of the eccentric wheel and outer ring of this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the buffer support of this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the connecting slide of this utility model.

[0025] Legend: 1. Drive motor; 2. Return pump; 21. Pump body; 22. Connecting shaft; 23. Eccentric wheel; 231. Annular groove; 232. Annular sound-absorbing cotton board; 24. Outer ring; 241. Sound-absorbing coating; 242. Honeycomb holes; 25. Connecting groove; 26. Rotating column; 27. Limiting slide plate; 3. Inlet pipe; 4. Outlet pipe; 5. Buffer support; 51. Sliding sleeve plate; 52. Support plate; 53. Sliding guide rod; 54. Connecting slide plate; 541. Connecting sliding hole; 542. Connecting sliding groove; 543. Reverse T-shaped slide plate; 544. Guide column; 545. Buffer spring two; 55. Mounting base; 56. Buffer spring one. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1: As Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a technical solution: it includes a drive motor 1, a return pump 2 fixedly connected to the front side of the drive motor 1, and a buffer support 5 fixedly connected to the bottom of the drive motor 1 and the return pump 2. The return pump 2 includes a pump body 21, which is fixedly connected to the front side of the drive motor 1. A connecting shaft 22 is rotatably connected to the middle of the pump body 21. The rear end of the connecting shaft 22 is fixedly connected to the output shaft of the drive motor 1. An eccentric wheel 23 is fixedly connected to the outer surface of the connecting shaft 22. An outer ring 24 is rotatably connected to the outer surface of the eccentric wheel 23. An annular groove 231 is formed on the outer surface of the eccentric wheel 23. An annular ring 24 is fixedly connected inside the annular groove 231. The sound-absorbing cotton board 232 is made of glass fiber sound-absorbing cotton. The outer surface of the outer ring 24 is fixedly connected with a sound-absorbing coating 241, which is made of polytetrafluoroethylene coating. The inner surface of the outer ring 24 is provided with a number of honeycomb holes 242 in an annular array. The top left side of the return pump 2 is fixedly connected with a water inlet pipe 3, and the top right side of the return pump 2 is fixedly connected with a water outlet pipe 4. The upper part of the pump body 21 is provided with a connecting groove 25. The bottom of the connecting groove 25 is rotatably connected with a rotating column 26. The top of the outer ring 24 is fixedly connected with a limiting slide plate 27. The top of the limiting slide plate 27 passes through the rotating column 26 and extends into the interior of the connecting groove 25.

[0029] The overall effect achieved by Embodiment 1 is as follows: when the drive motor 1 drives the connecting shaft 22 to rotate, thereby causing the eccentric wheel 23 to rotate within the outer ring 24, the annular sound-absorbing cotton plate 232 can efficiently absorb the noise generated by the friction between the eccentric wheel 23 and the liquid, and the outer ring 24; the sound-absorbing coating 241 reduces the frictional resistance between the outer ring 24 and the liquid, reduces the generation of frictional noise, and weakens the intensity of noise propagation outward; the honeycomb holes 242 reflect the noise multiple times, continuously consuming noise energy, further reducing the noise inside the pump body 21; in addition, the coordinated movement of the limiting slide plate 27 within the rotating column 26 and the connecting groove 25 ensures the stable position of the outer ring 24 when the eccentric wheel 23 rotates, avoiding additional noise caused by the shaking of the outer ring 24, thus achieving effective control of the noise inside the return pump 2.

[0030] Example 2: Figure 4 and Figure 5 As shown, this utility model provides a technical solution: the buffer support 5 includes a sliding sleeve 51, with support plates 52 fixedly connected to the front and rear sides of the top of the sliding sleeve 51. The front support plate 52 is fixedly connected to the bottom of the return pump 2, and the rear support plate 52 is fixedly connected to the bottom of the drive motor 1. Sliding guide rods 53 are provided on the left and right sides of the inner surface of the sliding sleeve 51. A connecting slide plate 54 is slidably connected to the front and rear sides of the outer surface of the two sliding guide rods 53. A mounting base 55 is fixedly connected to the bottom of the two connecting slide plates 54. Two buffer springs 56 are fixedly connected to the opposite sides of the two connecting slide plates 54. The buffer springs 56 are disposed on the outer surface of the sliding guide rods 53. Front and rear support plates 56 are provided on the left and right sides of the connecting slide plates 54. A connecting sliding hole 541 is provided, and the inner surface of the connecting sliding hole 541 is slidably connected to the outer surface of the sliding guide rod 53. A connecting sliding groove 542 is provided at the top center of the connecting slide plate 54. A reverse T-shaped slide plate 543 is slidably connected to the top of the inner surface of the connecting sliding groove 542. The top of the reverse T-shaped slide plate 543 is fixedly connected to the upper surface of the inner wall of the sliding sleeve plate 51. Guide posts 544 that pass through vertically are slidably connected to both the left and right sides of the reverse T-shaped slide plate 543. The two guide posts 544 are fixedly connected to the left and right sides inside the connecting groove 542, respectively. A second buffer spring 545 is provided on the outer surface of the guide post 544. The second buffer spring 545 is fixedly connected between the bottom of the reverse T-shaped slide plate 543 and the lower surface of the inner wall of the connecting groove 542.

[0031] The overall effect of Embodiment 2 is as follows: When the equipment generates horizontal vibration during operation, the sliding sleeve 51 drives the sliding guide rod 53 to slide along the connecting slide hole 541 on the connecting slide plate 54 via the support plate 52, so that the sliding sleeve 51 and the connecting slide plate 54 compress the buffer spring 56. The elastic deformation of the buffer spring 56 effectively absorbs the horizontal vibration energy and reduces the transmission of horizontal vibration. When vertical vibration occurs, the sliding sleeve 51 drives the reverse T-shaped slide plate 543 to slide up and down along the guide post 544 in the connecting slide groove 542, compressing the buffer spring 545. The elastic deformation of the buffer spring 545 absorbs the vertical vibration energy and reduces the transmission of vertical vibration. By buffering the horizontal and vertical vibrations separately, the overall vibration amplitude of the equipment is significantly reduced, the noise generated by vibration is reduced, the stability of equipment operation is improved, and the service life of the equipment is extended.

[0032] The working principle of the entire equipment is as follows: After the equipment is started, the drive motor 1 starts to work, and its output shaft drives the connecting shaft 22 to rotate. The connecting shaft 22 then drives the eccentric wheel 23 to rotate eccentrically in the outer ring 24 inside the pump body 21. At this time, the return cleaning fluid after CIP cleaning enters the pump body 21 through the water inlet pipe 3. As the eccentric wheel 23 rotates, the volume space formed between the eccentric wheel 23, the outer ring 24 and the pump body 21 changes periodically. A negative pressure is formed in the area where the volume increases, which draws in the cleaning fluid. A positive pressure is formed in the area where the volume decreases, which discharges the cleaning fluid through the water outlet pipe 4, thus realizing the recycling and transportation of the cleaning fluid.

[0033] During the rotation of the eccentric wheel 23, the annular sound-absorbing cotton plate 232 on its outer surface absorbs some of the noise generated by the friction between the eccentric wheel 23 and the liquid and the outer ring 24; the sound-absorbing coating 241 on the outer surface of the outer ring 24 reduces the friction between the outer ring 24 and the liquid, and at the same time hinders the transmission of noise, while the honeycomb holes 242 on the inner surface of the outer ring 24 consumes its energy through multiple reflections of noise, further reducing the noise inside the pump body 21. In addition, the limiting slide plate 27 on the top of the outer ring 24 slides in the rotating column 26 and the connecting groove 25, ensuring that the outer ring 24 does not deviate excessively when the eccentric wheel 23 rotates, maintaining a stable working state and avoiding additional noise caused by the shaking of the outer ring 24.

[0034] Meanwhile, the vibrations generated by the drive motor 1 and return pump 2 during operation are transmitted to the sliding sleeve 51 of the buffer support 5 through the support plate 52. When horizontal vibration occurs, the sliding sleeve 51 drives the sliding guide rod 53 to slide along the connecting slide hole 541 on the connecting slide plate 54, causing the buffer spring 56 between the sliding sleeve 51 and the connecting slide plate 54 to be compressed. The elastic force of the buffer spring 56 will offset part of the horizontal vibration energy, thereby reducing the transmission of horizontal vibration. When vertical vibration occurs, the sliding sleeve 51 drives the reverse T-shaped slide plate 543 to move up and down along the guide post 544 in the connecting slide groove 542, compressing the buffer spring 545. The elastic deformation of the buffer spring 545 will absorb the vertical vibration energy, reducing the transmission of vertical vibration. Through the double buffering of horizontal and vertical vibrations by the buffer support 5, the transmission of vibration to the mounting base 55 and surrounding equipment is reduced, further reducing the overall noise of the equipment during operation and ensuring the stability of the equipment operation.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A CIP return pump with a low-noise eccentric guide wheel, characterized in that: Includes a drive motor (1), a return pump (2) is fixedly connected to the front side of the drive motor (1), and a buffer support (5) is fixedly connected to the bottom of the drive motor (1) and the return pump (2); The return pump (2) includes a pump body (21), which is fixedly connected to the front side of the drive motor (1). A connecting shaft (22) is rotatably connected to the middle of the pump body (21). The rear end of the connecting shaft (22) is fixedly connected to the output shaft of the drive motor (1). An eccentric wheel (23) is fixedly connected to the outer surface of the connecting shaft (22). An outer ring (24) is rotatably connected to the outer surface of the eccentric wheel (23). An annular groove (231) is opened on the outer surface of the eccentric wheel (23). An annular sound-absorbing cotton board (232) is fixedly connected inside the annular groove (231). The annular sound-absorbing cotton board (232) is made of glass fiber sound-absorbing cotton. A sound-absorbing coating (241) is fixedly connected to the outer surface of the outer ring (24). The sound-absorbing coating (241) is made of polytetrafluoroethylene coating. A number of honeycomb holes (242) are opened in an annular array on the inner surface of the outer ring (24).

2. The CIP return pump with low-noise eccentric guide wheel according to claim 1, characterized in that: The return pump (2) has an inlet pipe (3) fixedly connected to the top left side and an outlet pipe (4) fixedly connected to the top right side.

3. The CIP return pump with a low-noise eccentric guide wheel according to claim 1, characterized in that: A connecting groove (25) is provided on the upper part of the inside of the pump body (21), and a rotating column (26) is rotatably connected to the bottom of the connecting groove (25).

4. The CIP return pump with a low-noise eccentric guide wheel according to claim 3, characterized in that: The top of the outer ring (24) is fixedly connected to a limiting slide plate (27), the top of which passes through the rotating column (26) and extends into the interior of the connecting groove (25).

5. The CIP return pump with a low-noise eccentric guide wheel according to claim 1, characterized in that: The buffer support (5) includes a sliding sleeve (51), and support plates (52) are fixedly connected to the front and rear sides of the top of the sliding sleeve (51). The front support plate (52) is fixedly connected to the bottom of the return pump (2), and the rear support plate (52) is fixedly connected to the bottom of the drive motor (1).

6. The CIP return pump with a low-noise eccentric guide wheel according to claim 5, characterized in that: The inner surface of the sliding sleeve (51) is provided with sliding guide rods (53) on both the left and right sides, and the outer surfaces of the two sliding guide rods (53) are slidably connected to a connecting slide plate (54) on both the front and rear sides.

7. The CIP return pump with a low-noise eccentric guide wheel according to claim 6, characterized in that: A mounting base (55) is fixedly connected to the bottom of the two connecting slides (54), and two buffer springs (56) are fixedly connected to the opposite sides of the two connecting slides (54). The buffer springs (56) are disposed on the outer surface of the sliding guide rod (53).

8. The CIP return pump with a low-noise eccentric guide wheel according to claim 6, characterized in that: The connecting slide plate (54) has connecting sliding holes (541) that extend from front to back on both the left and right sides. The inner surface of the connecting sliding hole (541) is slidably connected to the outer surface of the sliding guide rod (53).

9. The CIP return pump with a low-noise eccentric guide wheel according to claim 8, characterized in that: The connecting slide plate (54) has a connecting groove (542) at the top center. The inner surface of the connecting groove (542) is slidably connected to a reverse T-shaped slide plate (543). The top of the reverse T-shaped slide plate (543) is fixedly connected to the upper surface of the inner wall of the sliding sleeve plate (51).

10. The CIP return pump with a low-noise eccentric guide wheel according to claim 9, characterized in that: The left and right sides of the reverse T-shaped slide plate (543) are slidably connected with guide posts (544) that run vertically through it. The two guide posts (544) are respectively fixedly connected to the left and right sides inside the connecting groove (542). The outer surface of the guide post (544) is provided with a buffer spring (545). The buffer spring (545) is fixedly connected between the bottom of the reverse T-shaped slide plate (543) and the lower surface of the inner wall of the connecting groove (542).

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