A kind of directional spraying guide device for coating of flow channel of chemical pump shell

Abstract

The utility model discloses a kind of directional spraying guiding devices of chemical pump pump shell flow passage coating, belong to spraying technical field;Including:Spraying box;Upper vortex track, set in the upper top surface of the spraying box;Lower vortex track, set in the lower bottom surface of the spraying box;Spray gun sliding component, respectively in the upper vortex track and the lower vortex track each set a group;Spray gun, each articulation set a group of spray gun on each upper end of the spray gun sliding component;The spray gun sliding component is used to drive spray gun to do vortex track sliding movement;Flange plate mounting assembly, located the upper top surface and lower bottom surface of the spraying box each set a group, the flange plate mounting assembly is used to install fixed the flange plate of pump shell, the flange plate mounting assembly is set in the center of vortex track.Solved the problem of mismatching caused by the difference of pump shell model structure and how to match the curvature complex structure of flow passage by the orientation adjustment of spray gun itself.

Description

Technical Field

[0001] This utility model belongs to the field of spraying technology, specifically relating to a directional spraying guide device for the coating of the flow channel of a chemical pump casing. Background Technology

[0002] In industrial sectors such as petrochemicals, coal chemicals, and metallurgical chemicals, chemical pumps are core equipment for conveying acid and alkali solutions, slurries containing abrasive particles, and high-temperature, high-pressure media. Their operational reliability and service life are directly related to production continuity and safety stability. The pump casing flow channel, as the core channel for media flow, is subjected to corrosion, erosion, and abrasion by the media over a long period, making it highly susceptible to localized failures, leading to pump leakage, reduced efficiency, and even shutdown. Industry statistics show that approximately 35% of chemical pump failures originate from surface damage to the pump casing flow channel. Maintaining the integrity and uniformity of the protective coating within the flow channel is a key technical means to extend the service life of the pump casing.

[0003] Due to the unique structural characteristics of the flow channel in chemical pumps and the inconsistency in pump casing structures among different models, the following two main problems exist when spraying the flow channel of chemical pump casings: 1) Clamping issues: Most current workpiece clamping structures are physical elastic clamping or adsorption clamping. However, mass production often includes multiple models of chemical pumps, and the structures of the pump casings of different models vary, resulting in clamping structures that cannot fully adapt to each model of pump casing; 2) Spraying guidance issues: The spray gun structure needs to adapt to the area to be sprayed, while the flow channel is located inside the pump casing and has a complex and curved structure. Therefore, the spray gun structure needs to face the flow channel direction, and the spray gun should be able to synchronously drive with the vortex trend of the flow channel and adjust its orientation to match the curvature of the flow channel. Obviously, the current spray gun guidance and positioning structure cannot fully meet the above two conditions, resulting in limitations in flow channel spraying and a tendency for substandard spraying to occur. Summary of the Invention

[0004] This utility model provides a directional spraying guide device for the coating of the flow channel of a chemical pump casing. It designs a clamping and fixing structure for the necessary flange structure on the pump casing. Even if the flange model and structure are different, the pump casing can be clamped and fixed through the screw holes at the flange, which solves the clamping mismatch problem caused by the difference in pump casing model and structure. For the vortex-shaped spraying guide positioning of the flow channel, the movement trajectory of the spray gun is designed to be a vortex line structure, and the complex structure of the flow channel is matched by adjusting the orientation of the spray gun itself.

[0005] To achieve the above-mentioned technical objectives, this utility model is implemented through the following technical solution: A directional spraying guide device for the coating of a chemical pump casing flow channel includes: Spray painting of the box body; An upper vortex track is disposed on the upper top surface of the spraying box; The lower vortex track is located on the bottom surface of the spray box; A spray gun sliding assembly is provided on both the upper and lower vortex tracks; Each spray gun is hinged to the upper end of the spray gun sliding assembly; the spray gun sliding assembly is used to drive the spray gun to slide in a vortex trajectory. A flange mounting assembly is provided on both the top and bottom surfaces of the spraying box. The flange mounting assembly is used to install the flange that fixes the pump casing. The flange mounting assembly is located at the center of the eddy current track.

[0006] Preferably, the centers of the upper and lower vortex tracks coincide with the intersection of the diagonals of the top and bottom surfaces of the spraying box.

[0007] Preferably, the upper end of the spray gun sliding assembly is provided with a spray gun lifting rod, the upper end of the spray gun lifting rod is hinged to a hinge seat, a hinge plate is movably provided in the hinge seat, and the hinge plate and the hinge seat are hinged together; the end of the hinge plate is provided with a spray gun.

[0008] Preferably, a motor is provided on the outside of the hinge seat, one side of the hinge plate is rotatably mounted on the hinge seat via a rotating shaft, and the motor rotor is provided on the other side of the hinge plate; the motor drives the spray gun to change its deflection direction.

[0009] Preferably, the spray gun sliding assembly is configured as an electrically controlled slider, and its sliding movement is controlled by an electrically controlled assembly; both ends of the upper vortex track and the lower vortex track are provided with limiting structure protrusions to limit the sliding of the electrically controlled slider to the ends and prevent it from derailing.

[0010] Preferably, the flange mounting assembly located on the top surface of the spraying box includes: A hydraulic lifting column is located at the center of the upper vortex track; The pump housing fixing plate is detachably installed at the lifting end of the hydraulic lifting column by means of threaded screwing; A flange bolt hole through rod is provided on the downward-facing side of the pump casing fixing plate; the flange bolt hole through rods are arranged in a circumferential array at equal intervals near the edge of the pump casing fixing plate; the flange bolt hole through rod is hollow inside and open at both ends; An inflatable airbag head is provided at the end of each set of flange bolt hole rods, and the inflatable airbag head communicates with the interior of the flange bolt hole rods; An inflation port is provided on the upward-facing side of the pump housing fixing plate. Each set of flange bolt hole rods is provided with a set of inflation ports, and the inflation port communicates with the inside of the flange bolt hole rod. Inflation can be achieved by passing a rod through the flange bolt hole into the inflation port, thus filling the airbag head.

[0011] Preferably, the flange mounting assembly located on the lower bottom surface of the spraying box includes: The mounting post is located at the center of the lower vortex track; The pump housing fixing plate is detachably mounted on the upper end of the mounting column by means of threaded screwing; A flange bolt hole through rod is provided on the upward-facing side of the pump casing fixing plate. The flange bolt hole through rods are arranged in a circumferential array with equal intervals near the edge of the pump casing fixing plate. The flange bolt hole through rod is hollow inside and open at both ends. An inflatable airbag head is provided at the end of each set of flange bolt hole rods, and the inflatable airbag head communicates with the interior of the flange bolt hole rods; An inflation port is provided on the downward-facing side of the pump housing mounting plate. Each set of flange bolt holes has a corresponding inflation port, and the inflation port communicates with the interior of the flange bolt hole.

[0012] Preferably, ventilation fans are provided on at least two sides of the spraying box to enhance air circulation inside the spraying box and accelerate the drying of the paint coating.

[0013] The beneficial effects of this utility model are: This utility model provides a directional spraying guide device for the flow channel coating of a chemical pump casing. It features a universal clamping structure for holding the pump casing workpiece. For the flange structure found on all pump casings, a flange bolt hole through-rod is provided to mate with the flange bolt holes. The through-rod is inserted into the bolt holes on the pump casing flange, and then inflated to fill the air bladder head at the end of the through-rod, preventing the pump casing from detaching. Furthermore, the pump casing fixing plate with the flange bolt hole through-rod is detachable and replaceable; a suitable fixing plate can be replaced according to the structure of the flange on the pump casing. This achieves universality in fixing the pump casing. The spray gun's movement trajectory is a vortex trajectory, which can adapt to vortex-shaped flow channel structures. In addition, the spray gun's own orientation can be deflected to adapt to curvature changes at different positions in the flow channel. By specifically matching the flow channel vortex structure trajectory and adjusting the spray gun's own orientation, the complex flow channel can be sprayed evenly, reducing missed spray blind spots. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of the spray box body of this utility model from a downward tilted view. Figure 2 This is a structural schematic diagram of the spraying box of this utility model from an upward tilted view. Figure 3 This is a front view of the spraying box of this utility model; Figure 4 This is a schematic diagram of the pump casing fixing plate of this utility model, the flange bolt hole through rod and the air inlet structure provided thereon; Figure 5 This is a schematic diagram of the spray gun hinge structure of this utility model.

[0016] In the attached diagram, the structural names represented by each number are as follows: 1-Spraying box, 101-Exhaust fan, 2-Lower vortex track, 3-Lower electric control slider, 4-Pump housing fixing plate, 5-Upper vortex track, 6-Upper electric control slider, 7-Hydraulic lifting column, 8-Spray gun lifting rod, 801-Hinge seat, 9-Flange bolt hole rod, 901-Inflation interface, 10-Inflation airbag head, 11-Spray gun, 1101-Hinge plate, 12-Motor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1 A directional spraying guide device for the flow channel coating of a chemical pump casing includes: a spraying box 1, such as... Figure 1 As shown, the spray box 1 in this embodiment has three sides and an open front. An openable door can also be provided at the open front of the spray box 1. When spraying, the door is closed and when the workpiece is taken out, the door is opened. like Figure 1 as well as Figure 2 As shown, a lower vortex track 2 is provided on the bottom surface of the spray box 1, and an upper vortex track 5 is provided on the top surface of the spray box 1. The center of the vortex track is located at the intersection of the diagonals of the bottom surface and the top surface. The vortex track has at least three turns. A spray gun sliding assembly is provided on each of the two sets of vortex tracks to drive the spray gun to slide. For example, the spray gun sliding assembly can use a magnetic levitation slider to achieve sliding movement on the vortex track; like Figure 1 as well as Figure 2 As shown, in this embodiment, the spray gun sliding assembly is set as an electrically controlled slider. An upper electrically controlled slider 6 is movably set on the upper vortex track 5, and a lower electrically controlled slider 3 is movably set on the lower vortex track 2. The electrically controlled sliders are driven by their respective electrically controlled components, and the speed and direction of the drive are controlled by their respective electrically controlled components. The electrically controlled sliders and their electrically controlled components are existing products known to those skilled in the art and can be directly purchased. In this embodiment, the structure of the electrically controlled sliders and their electrically controlled components will not be described in detail. As a preferred embodiment, limiting structure protrusions are provided at both ends of the upper vortex track 5 and the lower vortex track 2. These limiting structure protrusions are either thicker than the track thickness or wider than the track width. In short, they can limit and block the electronically controlled slider when it slides to the end of the track, preventing the electronically controlled slider from slipping off the track. A set of spray gun lifting rods 8 is provided on both the upper electrically controlled slider 6 and the lower electrically controlled slider 3. In this embodiment, the spray gun lifting rods 8 are hydraulic lifting rods, whose extension or retraction is controlled by a hydraulic drive assembly; for example... Figure 5 As shown, a set of hinge seats 801 is provided at the upper end of each of the two sets of spray gun lifting rods 8. A hinge plate is hinged and fitted in the hinge seat 801. A spray gun 11 is provided at the end of the hinge plate. The spray gun 11 is connected to the paint storage tank through a pipeline. The paint is pumped to the spray gun 11 through the pipeline by a negative pressure pump and sprayed out from the spray gun 11. The hinge relationship between the spray gun 11 and the spray gun lifting rod 8 can adjust the orientation of the spray gun 11 within a large angle range so as to make adaptive adjustments according to the curvature of the flow channel. In a preferred embodiment, a motor 12 is provided on the outside of the hinge base 801. One side of the hinge plate is rotatably mounted on the hinge base 801 via a rotating shaft. The rotor of the motor 12 passes through the hinge base 801 and is mounted on the other side of the hinge plate. The motor 12 can drive the hinge plate to rotate, and the hinge plate drives the spray gun 11 to deflect, thereby realizing the electronically controlled adjustment of the direction of the spray gun 11. The electrically controlled slider drives the spray gun 11 to slide in a vortex-like motion, while the flow channel inside the pump housing also forms a vortex-like pattern. This achieves coordination between the trajectory of the spray gun 11 and the trajectory of the flow channel, which is beneficial for the accurate spraying of paint onto the flow channel structure. Furthermore, the spray gun 11 itself has a deflection orientation adjustment function, which can adjust the orientation of the spray gun according to various structural factors of the flow channel, including curvature, so that the coating on the flow channel is sprayed more evenly, and at the same time, the missed blind spots in the spraying are reduced. When the flow channel part of the pump housing workpiece suspended above faces downward, the spray gun 11 located below mainly sprays the pump housing workpiece suspended above; when the flow channel part of the pump housing workpiece located below faces upward, the spray gun 11 located above mainly sprays the pump housing workpiece below. like Figure 1 as well as Figure 2As shown, a set of flange mounting components is provided on the top surface and the bottom surface of the spray box 1 to fix the flange structure on the pump casing; the flange mounting components are located at the center of the eddy current track, that is, at the intersection of the diagonals of the top surface and the bottom surface. For example, the flange mounting assembly described above can be configured as a clamping plate structure from the side of the flange. Because the upper and lower surfaces of the flange are flat, the structure formed by the flange and the side of the flange is also a regular structure. Therefore, clamping the pump casing from the side of the flange is versatile. For example, such as Figure 1 as well as Figure 2 As shown, in this embodiment, the flange mounting assembly located on the top surface of the spray box 1 includes: a hydraulic lifting column 7, which is located at the center of the upper eddy track; and a pump housing fixing plate 4, which is detachably mounted on the lifting end of the hydraulic lifting column 7 by means of threaded screwing. The distribution and diameter of the flange bolt holes may vary depending on the pump housing model, so the pump housing fixing plate 4 is set as a detachable structure to facilitate the replacement of the pump housing fixing plate 4 according to the specific pump housing flange structure. On the downward-facing side of the pump casing mounting plate 4, flange bolt hole rods 9 are arranged in a circumferential array at equal intervals near the edge of the pump casing mounting plate 4. The flange bolt hole rods 9 are hollow inside and open at both ends. The length and diameter of the flange bolt hole rods 9 are different on different pump casing mounting plates 4. Each set of flange bolt hole rods 9 is provided with an inflation air bladder head 10 at its end, and the inflation air bladder head 10 communicates with the inside of the flange bolt hole rod 9. On the upward-facing side of the pump casing mounting plate 4, each set of flange bolt hole rods 9 is provided with an inflation interface 901, and the inflation interface 901 communicates with the inside of the flange bolt hole rod 9. Inflation can be carried into the inflation air bladder head 10 through the inflation interface 901 via the flange bolt hole rods 9, making it full. The flange mounting assembly located on the bottom surface of the spray box 1 includes: a mounting post, positioned at the center of the lower vortex track; a pump housing fixing plate 4 detachably mounted on the upper end of the mounting post via a threaded connection; flange bolt hole rods 9 arranged in an evenly spaced circular array near the edge of the pump housing fixing plate 4 on the upward-facing side of the pump housing fixing plate 4; the flange bolt hole rods 9 are hollow inside and open at both ends; each set of flange bolt hole rods 9 is provided with an inflation airbag head 10 at its end, and the inflation airbag head 10 communicates with the interior of the flange bolt hole rods 9; on the downward-facing side of the pump housing fixing plate 4, each set of flange bolt hole rods 9 is provided with an inflation port 901, and the inflation port 901 communicates with the interior of the flange bolt hole rods 9; The bolt holes on the pump casing flange are threaded through the flange bolt hole through rod 9 on the pump casing mounting plate 4. Then, air is injected into the inflation bladder head 10 through the inflation port 901 via the flange bolt hole through rod 9 until it is fully inflated. The inflation bladder head 10 is then secured at the flange bolt hole, preventing the pump casing from detaching from the pump casing mounting plate 4. The pump casing mounting plate 4, located on the top surface, is connected by a hydraulic lifting column 7, which allows adjustment of the workpiece height during spraying. Changing the distance between the pump casing / workpiece and the spray gun adjusts the spraying range and contact pressure. For certain localized areas, the distance can be reduced for fine spraying. Simultaneously, the spray gun is positioned via a spray gun lifting rod 8, which also allows for adjustment of the distance between the spray gun and the workpiece.

[0019] For the part of the inflation bladder head 10 that is blocked at the flange screw hole, the gas inside the inflation bladder head 10 can be discharged sequentially. After the inflation bladder head 10 is retracted, the blocked part will be exposed, and then it can be re-sprayed. After the re-spraying is completed, it will be re-inflated. Then the gas inside the next inflation bladder head 10 is discharged, and so on. This allows for direct re-spraying of the blocked part without ensuring that the pump housing will not fall off.

[0020] Example 2 Based on Embodiment 1, this embodiment provides ventilation fans 101 on at least two sides of the spraying box 1. The ventilation fans 101 can create convection of air inside the spraying box 1, accelerate the air circulation speed inside the spraying box 1, and thus accelerate the drying speed of the coating on the workpiece surface.

Claims

1. A directional spraying guide device for the coating of a chemical pump casing flow channel, characterized in that, include: Spray painting of the box body; An upper vortex track is disposed on the upper top surface of the spraying box; The lower vortex track is located on the bottom surface of the spray box; A spray gun sliding assembly is provided on both the upper and lower vortex tracks; Each spray gun is hinged to the upper end of the spray gun sliding assembly; the spray gun sliding assembly is used to drive the spray gun to slide in a vortex trajectory. A flange mounting assembly is provided on both the top and bottom surfaces of the spraying box. The flange mounting assembly is used to install the flange that fixes the pump casing. The flange mounting assembly is located at the center of the eddy current track.

2. The directional spraying guide device for the coating of the flow channel of a chemical pump casing according to claim 1, characterized in that, The centers of the upper and lower vortex tracks coincide with the intersection of the diagonals of the top and bottom surfaces of the spraying box.

3. The directional spraying guide device for the flow channel coating of a chemical pump casing according to claim 1, characterized in that, The upper end of the spray gun sliding assembly is provided with a spray gun lifting rod, and the upper end of the spray gun lifting rod is hinged to a hinge seat. A hinge plate is movably arranged inside the hinge seat, and the hinge plate and the hinge seat are hinged together. The spray gun is arranged at the end of the hinge plate.

4. The directional spraying guide device for the flow channel coating of a chemical pump casing according to claim 3, characterized in that, A motor is installed on the outside of the hinge base. One side of the hinge plate is rotatably mounted on the hinge base via a rotating shaft, and the motor rotor is located on the other side of the hinge plate. The motor drives the spray gun to change its deflection direction.

5. The directional spraying guide device for the coating of the flow channel of a chemical pump casing according to claim 1, characterized in that, The spray gun sliding assembly is configured as an electrically controlled slider, and its sliding movement is controlled by the electrically controlled assembly; both ends of the upper vortex track and the lower vortex track are provided with limiting structure protrusions to limit the sliding of the electrically controlled slider to the two ends.

6. The directional spraying guide device for the coating of the flow channel of a chemical pump casing according to claim 1, characterized in that, The flange mounting assembly located on the top surface of the spraying box includes: A hydraulic lifting column is located at the center of the upper vortex track; The pump housing fixing plate is detachably installed at the lifting end of the hydraulic lifting column by means of threaded screwing; A flange bolt hole through rod is provided on the downward-facing side of the pump casing fixing plate; the flange bolt hole through rods are arranged in a circumferential array at equal intervals near the edge of the pump casing fixing plate; the flange bolt hole through rod is hollow inside and open at both ends; An inflatable airbag head is provided at the end of each set of flange bolt hole rods, and the inflatable airbag head communicates with the interior of the flange bolt hole rods; An inflation port is provided on the upward-facing side of the pump housing mounting plate. Each set of flange bolt holes has a corresponding inflation port, and the inflation port communicates with the interior of the flange bolt hole.

7. The directional spraying guide device for the coating of the flow channel of a chemical pump casing according to claim 1, characterized in that, The flange mounting assembly located on the bottom surface of the spraying box includes: The mounting post is located at the center of the lower vortex track; The pump housing fixing plate is detachably mounted on the upper end of the mounting column by means of threaded screwing; A flange bolt hole through rod is provided on the upward-facing side of the pump casing fixing plate. The flange bolt hole through rods are arranged in a circumferential array with equal intervals near the edge of the pump casing fixing plate. The flange bolt hole through rod is hollow inside and open at both ends. An inflatable airbag head is provided at the end of each set of flange bolt hole rods, and the inflatable airbag head communicates with the interior of the flange bolt hole rods; An inflation port is provided on the downward-facing side of the pump housing mounting plate. Each set of flange bolt holes has a corresponding inflation port, and the inflation port communicates with the interior of the flange bolt hole.

8. The directional spraying guide device for the flow channel coating of a chemical pump casing according to claim 1, characterized in that, Ventilation fans are provided on at least two sides of the spraying box to enhance air circulation inside the spraying box and accelerate the drying of the paint coating.

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