A pump housing cleaning device

Abstract

The utility model relates to pump shell processing technical field provides a kind of pump shell cleaning device, including fixed frame, the inside top of fixed frame is provided with two clamping units, the lower portion of fixed frame is equipped with the cleaning tank corresponding with clamping unit;The both sides of fixed frame are provided with overturning unit, and overturning unit includes fixed plate, the lower portion of fixed plate is provided with lifting plate, arc slot is all opened between lifting plate and fixed plate, driving gear is installed on fixed plate, and the both ends of two clamping units are located in the circular groove of the both sides of fixed frame respectively;The utility model is driven by driving gear and the transmission cooperation between clamping unit, when lifting plate is driven to move up and contact with fixed plate, driving gear further drives both sides clamping unit synchronous overturning, realizes the automatic conversion of up and down position, to realize without additional power source, overturning is realized by mechanical transmission, compact structure and transmission efficiency are high, the cleaning surface of pump shell can be switched quickly, reduce manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of pump casing treatment technology, and in particular to a pump casing cleaning device. Background Technology

[0002] During the production process, pump casings typically require machining processes such as cutting, drilling, and grinding. This inevitably results in a large amount of metal shavings, powder, and abrasive particles remaining on or inside the pump casing. If these shavings remain inside the pump casing, such as in flow channels, threaded holes, or sealing surfaces, they may flow with the fluid during pump operation, causing severe scratches and wear on the pump casing's inner wall, impeller, and other components. This can even block flow channels, affecting the pump's normal operating efficiency and, in severe cases, leading to pump malfunction or damage.

[0003] Traditional pump casing cleaning devices typically suffer from low processing efficiency and a lack of automation during operation. For example, most existing pump casing cleaning devices require frequent manual loading and unloading operations, which not only increases labor intensity but also increases the risk of operational errors, affecting production quality and efficiency.

[0004] Patent CN222830239U discloses a device for cleaning pump casing channels, including a workbench with a cleaning tank fixedly connected to it. A lifting assembly is provided on the upper surface of the workbench, and a clamping assembly is mounted on the lifting assembly to secure the pump casing. The cleaning tank contains cleaning fluid. This cleaning device works by lowering the pump casing and using a squeezing plate to press the cleaning fluid into the pump casing, flushing the channels where the impeller is installed and cleaning the area around the channels. However, this method involves first confining the pump casing to a horizontal plate, lowering it into the cleaning tank, and then raising the plate to remove the pump casing for cleaning the next one. This process is time-consuming and reduces the efficiency of cleaning the pump casing. Utility Model Content

[0005] The purpose of this utility model is to provide a pump casing cleaning device that, through a reasonable structural design, solves the problems of low processing efficiency, low degree of automation, inconvenient mold replacement and positioning, and poor material transmission in existing pump casing cleaning devices, thereby achieving efficient and automated pump casing cleaning.

[0006] The present invention adopts the following technical solution: a pump casing cleaning device, including a fixed frame, two clamping units arranged symmetrically in the upper part of the fixed frame, the clamping units being used to clamp and limit the pump casing, and a cleaning box corresponding to the clamping units being installed below the fixed frame.

[0007] Both sides of the fixed frame are provided with flipping units for switching the two clamping units up and down. Each flipping unit includes a fixed plate located at the upper inner side of the fixed frame, and a lifting plate located below the fixed plate. An arc groove is formed between the lifting plate and the fixed plate. A rack is provided on the inner wall of the arc groove. The two arc grooves are combined to form a circular groove. A drive unit is rotatably installed in the circular groove. The two ends of the two clamping units are located in the circular grooves on both sides of the fixed frame. The two clamping units switch up and down through the operation of the drive unit.

[0008] Preferably, the clamping unit includes a mounting plate, on both sides of the mounting plate are two clamps arranged symmetrically, and the opposite sides of the two clamps are connected to guide plates that slide on the mounting plate. The two clamps move towards each other through the two guide plates to clamp the position of the pump casing.

[0009] Preferably, both sides of the mounting plate are connected to support shafts, and a transmission gear is installed on the end of the support shaft away from the mounting plate. The transmission gear is located in a circular groove and meshes with a rack.

[0010] Preferably, the drive unit includes a drive gear coaxially disposed in a circular groove, the drive gear meshing with a transmission gear, and a driver connected to the drive gear is mounted on the outside of the fixed frame.

[0011] Preferably, the mounting plate has a slide rail, the guide plate is T-shaped and located in the slide rail, a bidirectional motor is installed in the middle of the two mounting plates facing away from each other, a frame is connected to one side of the two mounting plates facing away from each other, and lead screws are respectively provided between the two ends of the bidirectional motor and the inner wall of the frame, the guide plate slides on the lead screws, and the threads on the two lead screws are in opposite directions.

[0012] Preferably, the inner side of the lifting plate is provided with a positioning device for defining the support shaft. The positioning device includes two sliding plates disposed on the lifting plate. The two sliding plates are respectively located at both ends of the lifting plate and can slide along the length direction of the lifting plate. A groove is formed at one end of the two lifting plates opposite to each other. The two grooves are combined to form a positioning groove that corresponds radially to the support shaft.

[0013] Preferably, both ends of the inner side of the lifting plate are provided with sliding grooves, the sliding grooves are arranged along the length direction of the lifting plate, and the sliding plate is connected to a slider located in the sliding groove on the side facing the lifting plate. An inclined guide groove is provided between the sliding plate and the slider, and the guide grooves on two adjacent sliding plates are arranged in an inverted "V" shape.

[0014] Preferably, the lifting plate is provided with two pressure rods for driving the two sliding plates to move relative to each other. The lifting plate has a through hole communicating with the sliding groove. The pressure rod slides in the through hole, and both ends of the pressure rod protrude from the upper and lower sides of the lifting plate. The side of the pressure rod facing the sliding plate is connected to a limiting rod located in the guide groove.

[0015] Preferably, a limiting plate is connected to the lower end of the sliding plate, and a spring sleeved on the pressure rod is installed between the limiting plate and the sliding plate.

[0016] Preferably, the limiting rod is a screw rod, and the limiting rod passes through the guide groove and is threadedly connected to the pressure rod.

[0017] The beneficial effects of this utility model are:

[0018] 1. Through the transmission cooperation between the drive unit and the clamping unit, when the lifting plate of the lifting device moves up and contacts the fixed plate, the drive unit drives the clamping units on both sides to rotate synchronously, realizing the automatic conversion of the upper and lower positions. Thus, the rotation is achieved through mechanical transmission without the need for an additional power source. The structure is compact and the transmission efficiency is high. It can quickly switch the cleaning surface of the pump casing (cleaning the upper and lower surfaces alternately) and reduce manual intervention.

[0019] 2. The sliding plate on the inner side of the lifting plate slides in the slide groove through the slider. When the lifting plate descends, the grooves of the sliding plates on both sides combine to form a positioning groove, which corresponds radially to the support shaft. This can accurately lock the support shaft, prevent the clamping unit from axially displacing during the flipping process, and ensure the stability of the flipping action.

[0020] 3. The pressure rod slides through the guide groove, and the limiting rod at its end is embedded in the guide groove of the sliding plate. When the lifting plate descends, the pressure rod moves upward relative to the lifting plate, causing the sliding plate to move closer to the clamping support shaft. When the lifting plate rises, the spring resets and drives the pressure rod to move downward relative to the lifting plate, causing the two sliding plates to separate and releasing the support shaft, ensuring that the lower clamping unit always moves up and down with the lifting plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the pump casing cleaning device of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the fixing frame of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the cooperation between the fixed plate and the lifting plate of this utility model;

[0024] Figure 4 This is a schematic diagram of the lifting plate of this utility model;

[0025] Figure 5This is a schematic diagram of the structure of the first sliding plate of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the pressure bar of this utility model;

[0027] Figure 7 This is a top view of the clamping unit of this utility model.

[0028] Figure 8 This is a bottom view of the clamping unit of this utility model.

[0029] In the picture:

[0030] 1. Fixed frame; 2. Fixed plate; 3. Lifting plate; 4. Clamping unit; 5. Lifter; 6. Driver; 7. Cleaning tank; 8. Arc groove; 31. Sliding plate; 32. Pressure rod; 301. Slide groove; 302. Through hole; 311. Slider; 312. Guide groove; 321. Limiting plate; 322. Spring; 323. Limiting rod; 41. Mounting plate; 42. Guide plate; 43. Fixture; 44. Support shaft; 45. Transmission gear; 46. Lead screw; 47. Bidirectional motor; 48. Frame; 61. Drive gear; 81. Rack. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0032] like Figures 1 to 8As shown, this utility model provides a pump casing cleaning device, including a fixing frame 1. In this embodiment, the fixing frame 1 is U-shaped with its opening facing upwards. A pick-and-place mechanism is provided above the fixing frame 1 to facilitate the pick-and-place of the pump casing. Two clamping units 4 are arranged symmetrically inside the fixing frame 1, which are used to clamp and limit the position of the pump casing. A cleaning tank 7 for cleaning the pump casing is installed below the fixing frame 1. The cleaning tank 7 uses ultrasonic equipment (ultrasonic cleaning is a physical cleaning technology that uses high-frequency ultrasonic vibration to generate cavitation effect in a liquid and removes dirt from the surface of an object through instantaneous high-pressure shock waves). The cleaning tank 7 contains cleaning fluid for cleaning residual cutting fluid on the pump casing. Both sides of the fixing frame 1 are provided with flip-top mechanisms for switching the vertical position of the two clamping units 4. The unit includes a fixed plate 2 installed on the upper inner side of the fixed frame 1, a lifting plate 3 below the fixed plate 2, and a lifter 5 installed between the lifting plate 3 and the lower part of the lifting plate 3 along the height direction of the fixed frame 1. The lifter 5 can be a cylinder or an electric telescopic rod. A circular arc groove 8 is provided between the lifting plate 3 and the fixed plate 2. A rack 81 is provided on the inner wall of the circular arc groove 8. The two circular arc grooves 8 are combined to form a circular groove. A drive unit is rotatably installed in the circular groove. The drive unit includes a drive gear 61 coaxially installed in the circular groove. A driver 6 connected to the drive gear 61 is installed on the outside of the fixed frame 1. The driver 6 is a servo motor, so that the driver 6 cannot rotate after power failure. The two ends of the two clamping units 4 are located in the circular grooves on both sides of the fixed frame 1. The two clamping units 4 realize the vertical position conversion through the drive unit.

[0033] In the above scheme, the pump casing is placed on the upper clamping unit 4 by an external picking and placing mechanism. The two clamping units 4 are switched up and down by the drive gear 61. Then, the pump casing on the lower clamping unit 4 is lowered into the cleaning tank 7 by the cooperation of the lifting device 5 and the lifting plate 3 to clean the pump casing. After the pump casing is cleaned, the lower clamping unit 4 is raised again by the cooperation of the lifting device 5 and the lifting plate 3. When the lower clamping unit 4 rises to the preset position, the two clamping units 4 are switched up and down by the drive gear 61 to remove the cleaned pump casing and place the pump casing to be cleaned. This cycle is repeated to reduce the cleaning time of the pump casing and improve the cleaning efficiency of the pump casing.

[0034] like Figure 7 and Figure 8As shown, in order to clamp the pump casing, in this embodiment, the clamping unit 4 includes a mounting plate 41. The two mounting plates 41 are arranged opposite each other with their openings facing each other. Two clamps 43 are symmetrically arranged on both sides of the interior of the mounting plate 41. The opposite sides of the two clamps 43 are connected to guide plates 42 that slide on the mounting plate 41. The two clamps 43 move towards each other through the two guide plates 42 to clamp the position of the pump casing. The opposite sides of the two clamps 43 are provided with positioning grooves. The positioning grooves are V-shaped and can limit the vertical position of the pump casing. Support shafts 44 are connected to both sides of the mounting plate 41. The support shafts 44 are located away from the mounting plate 41. A transmission gear 45 is installed at one end of the mounting plate 41. The transmission gear 45 is located in a circular groove and meshes with the rack 81. The drive gear 61 meshes with the transmission gear 45 for transmission. In detail, a slide rail is provided on the mounting plate 41, and the guide plate 42 is T-shaped and located in the slide rail. A bidirectional motor 47 is installed in the middle of the two mounting plates 41. A frame 48 is connected to the opposite side of the two mounting plates 41. Both ends of the bidirectional motor 47 are provided with lead screws 46 between them and the inner wall of the frame 48. The guide plate 42 slides on the lead screws 46. The threads on the two lead screws 46 are in opposite directions to drive the clamps 43 on the two guide plates 42 to move relative to each other.

[0035] In the above scheme, after the pump casing is placed between the two clamps 43, the two lead screws 46 are driven to rotate by the bidirectional motor 47, which drives the clamps 43 on the two guide plates 42 to move relative to each other, thereby limiting the position of the pump casing by the two clamps 43.

[0036] After the pump casing is clamped, the driver 6 drives the drive gear 61 to rotate. The drive gear 61 drives the support shaft 44 to make an arc motion in the circular groove through the transmission gear 45, rotating 180 degrees. Using the principle of planetary gears, the pump casings on the two clamping units 4 are switched up and down, and the positions of the pump casings to be processed and the cleaned are swapped.

[0037] During the rotation and movement of the transmission gear 45 within the circular groove, the transmission gear 45 will rotate under the action of the drive gear 61. After the transmission gear 45 rotates 90 degrees within the circular groove, the two mounting plates 41 will be in a vertically parallel state. After the transmission gear 45 rotates 180 degrees within the circular groove, the upper and lower surfaces of the two mounting plates 41 will be interchanged. During the process within the circular groove of the transmission gear 45, the transmission gear 45 will drive the mounting plates 41 to rotate 360 ​​degrees. When the two mounting plates 41 are in a horizontal state, the opposite ends of the two mounting plates 41 will always maintain a distance from the center of the drive gear 61 to avoid interference when the two mounting plates 41 rotate.

[0038] like Figures 3 to 6As shown, in order to achieve vertical flipping between the two clamping units 4, in this embodiment, a positioning device for limiting the support shaft 44 is provided on the inner side of the lifting plate 3. The positioning device includes two sliding plates 31 disposed on the lifting plate 3. The two sliding plates 31 are respectively located at both ends of the lifting plate 3 and can slide along the length direction of the lifting plate 3. A groove is opened at the opposite end of the two lifting plates 3. The two grooves are combined to form a positioning groove that corresponds to the radial direction of the support shaft 44. In detail, a sliding groove 301 is opened at both ends of the inner side of the lifting plate 3. The sliding groove 301 is arranged along the length direction of the lifting plate 3. A slider 311 located in the sliding groove 301 is connected to the side of the sliding plate 31 facing the lifting plate 3. An inclined guide groove 312 is opened between the sliding plate 31 and the slider 311. The guide grooves 312 on two adjacent sliding plates 31 are arranged in an inverted "V" shape.

[0039] like Figures 4 to 6 As shown, in order to limit the position of the support shaft 44 on the lifting plate 3 during the descent of the lifting plate 3, in this embodiment, the lifting plate 3 is also provided with two pressure rods 32 for driving the two sliding plates 31 to move relative to each other. The lifting plate 3 has a through hole 302 communicating with the slide groove 301 along the height direction of the lifting plate 3. The pressure rod 32 slides in the through hole 302 along the length direction of the through hole 302, and both ends of the pressure rod 32 protrude from the upper and lower sides of the lifting plate 3. The side of the pressure rod 32 facing the sliding plate 31 is connected to a limiting rod 323 located in the guide groove 312. In detail, the lower end of the sliding plate 31 is connected to a limiting plate 321. A spring 322 sleeved on the pressure rod 32 is installed between the limiting plate 321 and the sliding plate 31. The limiting rod 323 is a screw. The limiting rod 323 passes through the guide groove 312 and is threadedly connected to the pressure rod 32 to facilitate the installation of the pressure rod 32.

[0040] In the above scheme, when the lifting plate 3 and the fixed plate 2 are in contact, the spring 322 on the pressure rod 32 is in a stretched state; after the lifting plate 3 descends through the lifting device 5, the support shaft 44 on the lower clamping unit 4 descends with the lifting plate 3, the spring 322 resets and causes the pressure rod 32 to move upward, the pressure rod 32 slides in the guide groove 312 on the sliding plate 31 through the limiting rod 323, so that the two sliding plates 31 move towards each other, so that the two sliding plates 31 clamp the support shaft 44, and limit the position of the support shaft 44 in the lower clamping unit 4, so as to prevent the support shaft 44 on both sides of the lower mounting plate 41 from separating from the lifting plate 3 due to the buoyancy of the water after the lower mounting plate 41 enters the cleaning tank 7. The positioning device ensures that the lower clamping unit 4 always moves up and down with the lifting plate 3.

[0041] After the pump casing is cleaned, the lifting plate 3 rises again via the lifting device 5. When the lifting plate 3 contacts the fixed plate 2, the upper end of the pressure rod 32 will abut against the lower end of the fixed plate 2 and move downward relative to the lifting plate 3. The pressure rod 32 slides again in the guide groove 312 via the limiting rod 323, so that the two sliding plates 31 move in opposite directions, releasing the restriction on the support shaft 44, so as to facilitate the rotation of the position of the support shaft 44.

[0042] Working principle:

[0043] After the pump casing is placed between the two clamps 43, the two lead screws 46 are driven to rotate by the bidirectional motor 47, which drives the clamps 43 on the two guide plates 42 to move relative to each other, thereby limiting the position of the pump casing by the two clamps 43.

[0044] After the pump casing is clamped, the driver 6 drives the drive gear 61 to rotate. The drive gear 61 drives the support shaft 44 on the two clamping units 4 to make arc motion in the circular groove through the transmission gear 45, rotating 180 degrees, so that the pump casing on the two clamping units 4 can switch up and down positions.

[0045] In the initial state, the lifting plate 3 and the fixed plate 2 are in contact, and the spring 322 on the pressure rod 32 is in a stretched state. When cleaning the pump casing, the lifting plate 3 descends through the lifting device 5, and the support shaft 44 on the lower clamping unit 4 follows the lifting plate 3 down. At this time, the spring 322 resets, causing the pressure rod 32 to move upward. The pressure rod 32 slides in the guide groove 312 on the sliding plate 31 through the limiting rod 323, causing the two sliding plates 31 to move towards each other, so that the two sliding plates 31 clamp the support shaft 44 and limit the position of the lower support shaft 44, ensuring that the lower clamping unit 4 always moves up and down with the lifting plate 3. The lifting plate 3 continues to move downward, so that the pump casing on the lower clamping unit 4 enters the cleaning tank 7 for cleaning.

[0046] After the pump casing is cleaned, the lifting plate 3 rises again via the lifting device 5. When the lifting plate 3 contacts the fixed plate 2, the fixed plate 2 contacts the pressure rod 32, so that the pressure rod 32 remains stationary, allowing the pressure rod 32 to move downward relative to the lifting plate 3. The pressure rod 32 then slides again in the guide groove 312 via the limiting rod 323, causing the two sliding plates 31 to move in opposite directions, releasing the restriction on the support shaft 44, so that the position of the support shaft 44 can be rotated. This cycle repeats continuously.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pump casing cleaning device, comprising a fixing frame, characterized in that, The upper part of the fixed frame is provided with two clamping units arranged symmetrically in the upper and lower part, and the lower part of the fixed frame is provided with a cleaning box corresponding to the clamping units. Both sides of the fixed frame are provided with flipping units for switching the two clamping units up and down. Each flipping unit includes a fixed plate located at the upper inner side of the fixed frame, and a lifting plate located below the fixed plate. An arc groove is formed between the lifting plate and the fixed plate. A rack is provided on the inner wall of the arc groove. The two arc grooves are combined to form a circular groove. A drive unit is rotatably installed in the circular groove. The two ends of the two clamping units are located in the circular grooves on both sides of the fixed frame. The two clamping units switch up and down through the operation of the drive unit.

2. The pump casing cleaning device according to claim 1, characterized in that: The clamping unit includes a mounting plate, on both sides of the mounting plate are two clamps arranged symmetrically. Each of the two clamps is connected to a guide plate that slides on the mounting plate on the opposite side. The two clamps move towards each other through the two guide plates to clamp the pump casing.

3. The pump casing cleaning device according to claim 2, characterized in that: Both sides of the mounting plate are connected to support shafts. A transmission gear is installed on the end of the support shaft away from the mounting plate. The transmission gear is located in a circular groove and meshes with a rack.

4. The pump casing cleaning device according to claim 3, characterized in that: The drive unit includes a drive gear coaxially disposed in a circular groove, the drive gear meshing with a transmission gear, and a driver connected to the drive gear is mounted on the outside of the fixed frame.

5. The pump casing cleaning device according to claim 3, characterized in that: The mounting plate has a slide rail, the guide plate is T-shaped and located in the slide rail, a bidirectional motor is installed in the middle of the two mounting plates facing away from each other, and a frame is connected to one side of the two mounting plates facing away from each other. Both ends of the bidirectional motor are provided with lead screws between them and the inner wall of the frame. The guide plate slides on the lead screws, and the threads on the two lead screws are in opposite directions.

6. The pump casing cleaning device according to claim 5, characterized in that: The inner side of the lifting plate is provided with a positioning device for limiting the support shaft. The positioning device includes two sliding plates disposed on the lifting plate. The two sliding plates are respectively located at both ends of the lifting plate and can slide along the length direction of the lifting plate. A groove is opened at one end of the two lifting plates opposite to each other. The two grooves are combined to form a positioning groove that corresponds to the radial direction of the support shaft.

7. The pump casing cleaning device according to claim 6, characterized in that: Both ends of the inner side of the lifting plate are provided with sliding grooves, which are arranged along the length of the lifting plate. A slider located in the sliding groove is connected to the side of the sliding plate facing the lifting plate. An inclined guide groove is provided between the sliding plate and the slider. The guide grooves on two adjacent sliding plates are arranged in an inverted "V" shape.

8. The pump casing cleaning device according to claim 7, characterized in that: The lifting plate is also provided with two pressure rods for driving the two sliding plates to move relative to each other. The lifting plate has a through hole communicating with the sliding groove. The pressure rod slides in the through hole, and both ends of the pressure rod protrude from the upper and lower sides of the lifting plate. The side of the pressure rod facing the sliding plate is connected to a limiting rod located in the guide groove.

9. The pump casing cleaning device according to claim 8, characterized in that: The lower end of the sliding plate is connected to a limiting plate, and a spring sleeved on the pressure rod is installed between the limiting plate and the sliding plate.

10. The pump casing cleaning device according to claim 8, characterized in that: The limiting rod is a screw rod, which passes through the guide groove and is threadedly connected to the pressure rod.

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