Rotary feeding and target distance adjustable continuous cleaning device for outer wall of steel pipe

Abstract

A rotary feeding and target distance adjustable steel pipe outer wall continuous cleaning device comprises an outer wall cleaning module, a steel pipe conveying module and a mud collecting frame module, and the steel pipe conveying module is used for conveying cleaned steel pipes to a hedging cleaning station of the outer wall cleaning module; and the sludge collecting frame module is used for receiving sludge cleaned out of the outer wall of the steel pipe, and the sludge collecting frame module is located below the lower water tank of the outer wall cleaning module. By adjusting the distance between the water spraying rods and driving the steel pipes to be fed in a rotating mode, the device can adapt to different pipe diameters, and automatic rotating cleaning of the steel pipes is achieved; cleaning parameters can be automatically adjusted according to the diameter specification of the steel pipe, frequent clamp replacement and manual intervention are avoided, the cleaning efficiency and the cleaning uniformity are remarkably improved, water resources are effectively saved, and the requirements of modern industrial production for automation, environmental protection and high efficiency are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial cleaning equipment, and particularly relates to an automatic device for cleaning the outer wall of steel pipes with different outer diameter sizes. Through the coordinated action of symmetrically adjusting the flushing mechanism and the rotary conveying mechanism, efficient cleaning of the outer wall of the steel pipe is achieved. Background Art

[0002] With the continuous advancement of the industrialization process, steel pipes, as an important engineering material, are widely used in industries such as chemical engineering, construction, petroleum, and food. During the production and transportation processes, the surface of steel pipes is often contaminated by impurities such as oil stains, oxides, and dust, and needs to be cleaned to ensure its quality and service performance. However, most traditional steel pipe outer wall cleaning devices adopt a fixed water spraying structure, which can only clean steel pipes of specific specifications, lacks sufficient flexibility, and cannot adapt to steel pipes of different pipe diameters. In practical applications, in order to adapt to steel pipes of different pipe diameters, it is necessary to frequently adjust or replace the fixtures or cleaning heads, which not only increases the complexity of the operation but also results in low equipment use efficiency.

[0003] In addition, existing cleaning equipment usually relies on manual intervention to complete the rotary cleaning work of steel pipes. This method is prone to unevenness during the cleaning process. Manual operation not only has low efficiency but also easily misses areas, resulting in the cleaning effect not meeting the requirements. In addition, due to the intervention of manual operation, the use of water resources during the cleaning process is often difficult to accurately control, causing a large amount of waste of water resources, thereby increasing production costs and environmental protection pressure. Summary of the Invention

[0004] In order to overcome the deficiencies of poor adaptability, low cleaning efficiency, and waste of water resources existing in the existing traditional cleaning equipment, the present invention provides a continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance. By adjusting the distance between the water spraying rods and driving the steel pipe to rotate and feed, it can adapt to different pipe diameters and realize automatic rotary cleaning of the steel pipe; it can automatically adjust the cleaning parameters according to the diameter specifications of the steel pipe, avoiding frequent replacement of fixtures and manual intervention, significantly improving the cleaning efficiency and cleaning uniformity, and effectively saving water resources, meeting the requirements of modern industrial production for automation, environmental protection, and high performance.

[0005] The technical solution adopted by the present invention to solve its technical problems is:

[0006] A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance, comprising an outer wall cleaning module, a steel pipe conveying module, and a sludge receiving frame module. The steel pipe conveying module is used to convey the steel pipe to be cleaned to the counter-flushing cleaning station of the outer wall cleaning module; the sludge receiving frame module is used to receive the sludge cleaned from the outer wall of the steel pipe, and the sludge receiving frame module is located below the water discharge trough of the outer wall cleaning module.

[0007] The outer wall cleaning module includes an outer wall cleaning box, symmetric flushing guide rails, a symmetric flushing rod module, and a symmetric sliding module for driving the two water spraying rods of the symmetric flushing rod module to approach or move away from each other. The symmetric flushing guide rails are installed at the front and rear ends of the outer wall cleaning box along the advancing direction of the steel pipe. The symmetric flushing guide rails are perpendicular to the symmetric flushing rod module. The two ends of the symmetric flushing rod module are slidably installed on the symmetric flushing guide rails. The symmetric flushing rod module is connected to the action end of the symmetric sliding module. The two water spraying rods of the symmetric flushing rod module are symmetrically arranged on both sides of the steel pipe to be cleaned.

[0008] Furthermore, the symmetric sliding module includes a sliding drive motor and a double - helix lead screw mechanism. The output shaft of the sliding drive motor is connected to the double - helix lead screw mechanism. The double - helix lead screw mechanism is located on the center line of the symmetric flushing guide rails. The two screw rods of the double - helix lead screw mechanism are respectively linked with one water spraying rod of the symmetric flushing rod module.

[0009] The symmetric sliding module further includes a control system. The control system includes a displacement sensor for monitoring the distance between the water spraying rods, a laser sensor for detecting the outer diameter of the steel pipe to be cleaned, and a target distance adjustment module for determining the distance between the water spraying rods according to the outer diameter of the steel pipe to be cleaned and controlling the action of the sliding drive motor. The target distance adjustment module is connected to the controlled end of the sliding drive motor. This solution forms a closed - loop feedback control to achieve automatic adjustment of the target distance.

[0010] The double - helix lead screw mechanism includes a double - helix lead screw and a lead screw nut sleeved thereon. The lead screw nut is fixedly connected to a nut mounting plate. The output shaft of the sliding drive motor is connected to the double - helix lead screw. In this solution, the double - helix lead screw mechanism controls the simultaneous sliding of the two water spraying rods, and the two water spraying rods approach or move away from each other, so as to adapt to the cleaning of the outer walls of steel pipes with different outer diameter sizes.

[0011] Preferably, the water spraying rods of the symmetric flushing rod module are fixed on the nut mounting plate by U - shaped bolts, and the water spraying rods are perpendicular to the double - helix lead screw mechanism. In this solution, the U - shaped bolts pass through the mounting holes of the nut mounting plate and lock and fix the water spraying rods, forming a detachable rigid connection structure.

[0012] Furthermore, the symmetric flushing rod module includes water spraying rods, chucks, pipe clamps, and pipe clamp mounting plates. The pipe clamp mounting plates are installed on the symmetric flushing guide rails. The two ends of the flushing rods are fixed by water spraying rod chucks. The water spraying rod chucks are fixed in the pipe clamps, and the pipe clamps are installed on the pipe clamp mounting plates.

[0013] The pipe clamps and the pipe clamp mounting plates are connected by a snap - type quick - release structure. This solution facilitates the quick replacement or maintenance of the water spraying rods.

[0014] A detachable filter screen is provided inside the sludge collection frame module. The filter screen is arranged obliquely to separate sludge from the flushing water, and a drain port is provided on the side wall of the sludge collection frame module for discharging the filtered flushing water.

[0015] More preferably, the outer wall cleaning box includes a water trough provided at its bottom. The water trough is arranged obliquely and communicated with the sludge collection frame module for guiding the flushed sludge into the sludge collection frame module for centralized collection.

[0016] The steel pipe conveying module includes V-wheel assemblies arranged at intervals. The V-wheel assembly includes a V-wheel and a conveying drive motor for driving its rotation. The axis of the V-wheel forms a preset inclination angle with the steel pipe conveying direction. This solution enables the steel pipe to rotate forward under the action of the frictional force of the V-wheel during the feeding process, realizing the rotary cleaning of the outer wall of the steel pipe.

[0017] The beneficial effects of the present invention are mainly manifested in:

[0018] 1. Through the linkage of the double-screw rod mechanism and the nut mounting plate, the automatic adjustment of the distance between the water spraying rods is realized, adapting to different pipe diameters;

[0019] 2. The V-wheel assembly drives the steel pipe to rotate and feed, ensuring uniform cleaning of the entire circumference of the outer wall;

[0020] 3. The modular design is convenient for maintenance, and the cleaning efficiency is increased by more than 30%. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the present invention.

[0022] Figure 2 is the structural schematic diagram of the symmetric cleaning box for the outer wall of the steel pipe of the present invention.

[0023] Figure 3 is the structural schematic diagram of the symmetric flushing rod module of the present invention.

[0024] Figure 4 is the partial structural schematic diagram of the symmetric flushing rod module of the present invention.

[0025] Figure 5 is the structural schematic diagram of the symmetric sliding module of the present invention.

[0026] Figure 6 is the structural schematic diagram of the steel pipe conveying module of the present invention. Detailed Embodiments

[0027] The present invention will be further described below with reference to the drawings.

[0028] Refer to Figure 1, a continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance, comprising an outer wall cleaning module 1, a steel pipe conveying module 3, and a sludge collection frame module 2. The steel pipe conveying module 3 is used to convey the steel pipe to be cleaned to the counterflush cleaning station of the outer wall cleaning module 1; the sludge collection frame module 2 is used to receive the sludge cleaned from the outer wall of the steel pipe, and the sludge collection frame module 2 is located below the water discharge trough of the outer wall cleaning module 1.

[0029] The outer wall cleaning module 1 includes an outer wall cleaning box 4, symmetric flushing guide rails 1-2, a symmetric flushing rod module 6, and a symmetric sliding module 5 for driving the two water spraying rods of the symmetric flushing rod module to approach or move away from each other. The symmetric flushing guide rails 1-1 are installed at the front and rear ends of the outer wall cleaning box along the advancing direction of the steel pipe. The symmetric flushing guide rails 1-1 are perpendicular to the symmetric flushing rod module 6. The two ends of the symmetric flushing rod module 6 are slidably installed on the symmetric flushing guide rails 1-1; the symmetric flushing rod module 6 is connected to the action end of the symmetric sliding module 5, and the two water spraying rods of the symmetric flushing rod module 6 are symmetrically arranged on both sides of the steel pipe to be cleaned.

[0030] In this embodiment, the steel pipe conveying module 3 is used to convey the steel pipe to be cleaned to the cleaning station in the outer wall cleaning box 4 of the outer wall cleaning module 1. The sludge from the steel pipe cleaning falls into the lower sludge collection frame module 2 through the water discharge trough at the bottom of the symmetric outer wall cleaning module 1.

[0031] As Figure 3 shown, the outer wall cleaning module 1 further includes a symmetric flushing guide rail base 1-3, and the symmetric flushing guide rail base 1-3 is fixed on the cleaning box frame 4-3 of the outer wall cleaning box 4.

[0032] The symmetric sliding module 5 includes a sliding drive motor 5-1 and a double screw rod mechanism 7; when the sliding drive motor 5-1 is started, it drives the double screw rod 7-1 to drive the screw nut 7-2 to move towards the center or both sides, and the distance between the water spraying rods 6-1 on the nut mounting plate 7-3 is enlarged or reduced. Before the steel pipe enters the cleaning station, the outer diameter of the steel pipe is detected in real time by a laser sensor and fed back to the control system, and the distance between the water spraying rods 6-1 is finely adjusted to a specific distance from the diameter of the steel pipe. After the adjustment is completed, the nut mounting plate 7-3 is fixed to the cleaning box frame 4-3 by an electromagnetic lock to ensure the stability during the flushing process.

[0033] As Figure 4As shown in the figure, the symmetric flushing rod module 6 includes a water spraying rod 6-1, a chuck 6-2, a pipe clamp 6-3 and a pipe clamp mounting plate 6-4. The two ends of the water spraying rod 6-1 are chucks 6-2, which are clamped and fixed by the pipe clamp 6-3. The pipe clamp 6-3 is installed on the pipe clamp mounting plate 6-4, so as to fix the two ends of the water spraying rod 6-1 on the slider of the guide rail 1-2. The water spraying rod 6-1 is fixed on the nut mounting plate by a U-shaped bolt 7-4, and the water spraying rod 6-1 is controlled to slide back and forth on the guide rail through a ball screw mechanism 7, so as to adapt to the cleaning of steel pipes with different outer diameter sizes.

[0034] As Figure 6 shown in the steel pipe conveying module, the inclination angle of the V-wheel 8-1 of the V-wheel assembly 8 is 40°, which forms a frictional force component with the steel pipe feeding direction to ensure the uniform rotation of the steel pipe. The specific working process is as follows: The steel pipe is placed on the V-wheel 8-1 through the loading rack device, the conveying drive motor 8-2 moves, all the V-wheel assemblies 8 rotate in the same direction, and the steel pipe starts to rotate and feed forward under the action of the frictional force. When the steel pipe enters the symmetric cleaning tank module 4, the high-pressure water flow of the water spraying rod 6-1 covers the outer wall of the steel pipe with a 60° fan-shaped angle, and the V-wheel assembly 8 continuously drives the steel pipe to rotate to ensure no cleaning blind area. The cleaned steel pipe is conveyed to the downstream station by the V-wheel assembly 8. After the sludge is filtered by the water drain tank 4-2 at the bottom of the symmetric cleaning tank module 4, it flows into the sludge collection tank 2-1 of the sludge collection frame module 2 along the diversion groove.

[0035] As Figure 3 and Figure 4 shown in the symmetric flushing module, an O-ring seal is adopted between the chuck 6-2 and the water spraying rod 6-1 to prevent the leakage of high-pressure water flow. The nozzle of the water spraying rod 6-1 is of a detachable design and is fixed by threaded connection, which is convenient for regular cleaning of scale or replacement. In addition, a maintenance door is provided on the side wall of the cleaning tank frame 4-3, and the symmetric sliding module 5 can be quickly disassembled for maintenance.

[0036] For the batch production scenario, the device supports continuous cleaning of multi-specification steel pipes: parameter presetting can be carried out, and the diameters of different steel pipes (such as Φ219mm, Φ273, Φ426mm, etc.) are input into the control system, and the corresponding spacing of the water spraying rods 6-1, water flow pressure and inclined wheel speed are automatically matched by the control system. After the current steel pipe cleaning is completed, the control system automatically adjusts the spacing of the water spraying rods according to the parameters of the next steel pipe. If it is detected that the steel pipe is bent or stuck, the V-wheel assembly 8 immediately reverses to withdraw the steel pipe and triggers an alarm prompt.

[0037] The cleaning method of the continuous cleaning device for the outer wall of the steel pipe includes the following steps:

[0038] Step 1: Place the steel pipe on the V-wheel 8-1 of the V-wheel assembly 8 in the steel pipe conveying module through the loading rack device. The conveying drive motor 8-2 drives each V-wheel assembly 8 to continuously rotate and feed the steel pipe forward, enter from one side of the outer wall cleaning tank 4, and reach the outer wall cleaning station.

[0039] Step 2: When used for the first time, it is necessary to slide the water spray rod 6-1 to a suitable position so that the two water spray rods 6-1 perform counter-flushing on the steel pipe with this outer diameter size. Control its nut mounting plate 7-3 to slide along the double-lead screw 7-1 through the sliding drive motor. When the steel pipe reaches the symmetric flushing outer wall cleaning tank 4, it drives the water spray rod 6-1 to slide relatively on the symmetric flushing guide rail 1-2 until the nozzle moves to a fixed distance for cleaning the steel pipe and stops.

[0040] Step 3: The steel pipe rotates and feeds forward under the drive of the V-wheel assembly 8 so that the fan-shaped water surface sprayed by each nozzle can cover the entire area of the steel pipe.

[0041] Step 4: The V-wheel assembly 8 drives the steel pipe to feed forward, leave the outer wall cleaning station from the other side of the outer wall cleaning tank 4, and enter the discharging V-wheel assembly.

[0042] Step 5: Repeat Steps 1 to 4 to complete the cleaning of the outer walls of multiple consecutive steel pipes.

[0043] The content described in the embodiments of this specification is only a list of the implementation forms of the inventive concept and is only for illustrative purposes. The protection scope of the present invention should not be regarded as limited to the specific forms stated in this embodiment. The protection scope of the present invention also extends to equivalent technical means that can be conceived by those of ordinary skill in the art based on the inventive concept of the present invention.

Claims

1. A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance, characterized in that, The device includes an outer wall cleaning module, a steel pipe conveying module, and a sludge collection frame module. The steel pipe conveying module is used to convey the steel pipe to be cleaned to the counter-flushing cleaning station of the outer wall cleaning module. The sludge collection frame module is used to receive the sludge cleaned from the outer wall of the steel pipe, and the sludge collection frame module is located below the water discharge trough of the outer wall cleaning module. The outer wall cleaning module includes an outer wall cleaning box, symmetric flushing guide rails, a symmetric flushing rod module, and a symmetric sliding module for driving the two water spraying rods of the symmetric flushing rod module to approach or move away from each other. The symmetric flushing guide rails are installed at the front and rear ends of the outer wall cleaning box along the advancing direction of the steel pipe. The symmetric flushing guide rails are perpendicular to the symmetric flushing rod module. The two ends of the symmetric flushing rod module are slidably installed on the symmetric flushing guide rails. The symmetric flushing rod module is connected to the action end of the symmetric sliding module, and the two water spraying rods of the symmetric flushing rod module are symmetrically arranged on both sides of the steel pipe to be cleaned.

2. The continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance as described in claim 1, characterized in that, The symmetric sliding module includes a sliding drive motor and a double-screw rod mechanism. The output shaft of the sliding drive motor is connected to the double-screw rod mechanism. The double-screw rod mechanism is located on the center line of the symmetric flushing guide rails. The two screw rods of the double-screw rod mechanism are respectively linked with one water spraying rod of the symmetric flushing rod module.

3. The continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance according to claim 2, characterized in that, The double-screw rod mechanism includes a double-screw rod and a screw nut sleeved thereon. The screw nut is fixedly connected to a nut mounting plate, and the output shaft of the sliding drive motor is connected to the double-screw rod.

4. A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance, as described in any one of claims 1 to 3, characterized in that, The water spraying rod of the symmetric flushing rod module is fixed to the nut mounting plate by a U-shaped bolt. The water spraying rod is perpendicular to the double-screw rod mechanism. In this solution, the U-shaped bolt passes through the mounting hole of the nut mounting plate and locks and fixes the water spraying rod to form a detachable rigid connection structure.

5. A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance as claimed in claim 2 or 3, characterized in that, The symmetric sliding module further includes a control system. The control system includes a displacement sensor for monitoring the distance between the water spraying rods, a laser sensor for detecting the outer diameter of the steel pipe to be cleaned, and a target distance adjustment module for determining the distance between the water spraying rods according to the outer diameter of the steel pipe to be cleaned and controlling the operation of the sliding drive motor. The target distance adjustment module is connected to the controlled end of the sliding drive motor.

6. A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance, as described in any one of claims 1 to 3, characterized in that The symmetric flushing rod module includes a water spraying rod, a chuck, a pipe clamp, and a pipe clamp mounting plate. The pipe clamp mounting plate is installed on the symmetric flushing guide rails. The two ends of the flushing rod are fixed by a water spraying rod chuck, and the water spraying rod chuck is fixed in the pipe clamp. The pipe clamp is installed on the pipe clamp mounting plate.

7. The continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance as claimed in claim 6, wherein, A snap-fastening quick-release structure is adopted for connection between the pipe clamp and the pipe clamp mounting plate.

8. A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance as described in any one of claims 1 to 3, characterized in that A detachable filter screen is provided in the sludge collection frame module. The filter screen is inclined to separate the sludge from the flushing water, and a drain port is provided on the side wall of the sludge collection frame module for discharging the filtered flushing water.

9. A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance as described in any one of claims 1 to 3, characterized in that The outer wall cleaning box includes a water discharge trough provided at its bottom. The water discharge trough is inclined and communicated with the sludge collection frame module for guiding the sludge after flushing into the sludge collection frame module for centralized collection.

10. A continuous cleaning device for the outer wall of a steel pipe with rotary feeding and adjustable target distance as described in any one of claims 1 to 3, characterized in that, The steel pipe conveying module includes V-wheel assemblies arranged at intervals. The V-wheel assemblies include V-wheels and conveying drive motors for driving them to rotate. The axis of the V-wheel forms a preset inclination angle with the steel pipe conveying direction.

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