CN204725336U - Outer wall of wind power tower wheel abrator - Google Patents

Abstract

The utility model discloses a shot blasting cleaning device for the outer wall of a wind power tower tube, which belongs to the technical field of shot blasting treatment and is mainly used for the shot blasting treatment of the outer wall of a wind power tower tube to solve the problem of low cleaning efficiency of attachments such as rust and welding slag on the outer wall of the wind power tower tube. Problems such as stress concentration during low and tower rolling. The device includes a shot blasting machine, a shot blasting room, a shot pool, a screw conveying device, a carrying car and a connection port; powered by a motor, under the action of the carrying car, the tower moves slowly and rotates around its own axis at a low speed. The projectiles launched continuously hit the moving tower to complete the shot blasting treatment operation, and the scattered projectiles and generated dust are transported to other equipment connected to the connection port for effective treatment. The above-mentioned shot blasting cleaning device for the outer wall of the wind power tower has high cleaning efficiency, high degree of automation, less dust pollution, improved surface quality, reduced stress concentration, reduced labor intensity of workers, and improved the working environment of workers.

Description

Wind power tower outer wall shot blasting cleaning device

technical field

The utility model belongs to the technical field of shot blasting, and relates to a shot blasting cleaning device, in particular to a shot blasting cleaning device for the outer wall of a wind power tower tube.

Background technique

Shot blasting technology is a very effective method in surface treatment technology. Shot blasting is to use the centrifugal force of the impeller on the throwing head when it rotates at high speed, to shoot the abrasive to the surface of the component to be processed at a high linear speed, to produce impact and grinding, to remove the welding slag and rust on the surface of the component, and A certain roughness is produced, which reduces the stress concentration to a certain extent.

The wind power tower is an important load-bearing component of wind power generation equipment. The outer diameter of the tower is relatively large and the diameter changes. It is rolled and welded by sheet metal during the manufacturing process. During the rolling process, the sheet metal occurs Deformation produces stress concentration; welding slag should be cleaned up during the welding process, otherwise, it will affect the welding quality and the service life of the interface.

Wind power generation equipment is mainly installed in seaside, plateau and other places with rich wind resources. The towers are exposed to wind, rain and sun all year round. The air at the seaside is relatively humid, and the wind in some areas contains fine sand. If the wind power towers are not properly protected , will directly affect the service life of wind power equipment, and even cause serious economic losses.

The working environment of the wind power equipment tower is relatively complicated, so the tower equipment must be well protected before leaving the factory, and the welding slag, rust spots and other attachments on the surface of the tower must be cleaned, otherwise, the service life of the coating material will be affected. The stronger the bonding force between the coated material and the tower, the longer the life of the tower coating material, and the appropriate reduction in the daily maintenance of the tower. If the coating material is not properly treated on the surface of the tower tube, the material coated on the tower tube will fall off prematurely, and it has to be maintained by manual high-altitude operations. The cost is high, and the workers work high-altitude, which is relatively dangerous.

After the preparation of the tower, the attachments such as welding slag and rust spots on the surface are cleaned by manual grinding, which is relatively inefficient; due to the relatively large outer diameter of the tower, scaffolding has to be built, which is time-consuming and laborious; manual grinding produces a lot of dust, which is inconvenient to collect , but also cause harm to the health of workers; due to the many uncertain factors in manual grinding, the surface roughness and finish are not easy to control and the surface quality is uneven.

Shot blasting technology is an important way to solve the above problems. At present, there are small shot blasting equipment on the outer wall of some towers (mainly the rolls before the tower is not welded, the size is small), but there are still many problems, and The dust cannot be effectively treated, the cleaning efficiency is low, and the degree of automation needs to be improved. Shot blasting has restrictions on the size of the tower components, which cannot meet the needs of larger sizes.

Contents of the invention

The purpose of the utility model is to provide a high-efficiency shot blasting cleaning device for the outer wall of the wind power tower tube, which is mainly used for the shot blasting treatment of the outer wall of the wind power tower tube, and solves the problem of cleaning the outer wall of the wind power tower tube such as corrosion and welding slag. Problems such as low efficiency and stress concentration during tower rolling.

The technical solution adopted by the utility model to solve the technical problems is: a shot blasting cleaning device for the outer wall of the wind power tower tube, which mainly includes a shot blasting device, a shot blasting room, a pill collection pool, a screw conveying device, a load-carrying vehicle and a connection port; The lower side of the middle part of the room is designed with a pill pool, and the lower side of the pill pool is designed with a screw conveying device. The bottom of the shot blasting room is designed with a load-carrying car and steel rails. Separation connection port), one end of the shot blasting room is designed with a protective door; the shot blasting device is a device for launching shot material, there are eight in total, and they are symmetrically distributed on both sides of the centerline of the middle of the shot blasting room, and the position of the shot blasting device It can be adjusted to make the blasting range of the shot blaster the best and meet the shot blasting operations of towers of different sizes; the shot blasting room is a space that can be sealed, and it is a place for shot blasting cleaning operations. The top of the shot blasting room is designed with three The cross-section of the top of the shot blasting room at the dust removal and ventilation connection port is trumpet-like, which is conducive to dust collection and circulation. The warehouses are directly connected; one end of the screw conveying device is designed with a shot material separation connection port, and the main function of the screw conveying device is to collect the scattered projectiles after shot blasting strengthening and transport them to the shot material separation connection port; There are three load-carrying vehicles, the structure of which includes motors (the motor for the tower to rotate and the motor for the load-bearing vehicle to walk), rollers, steel wheels, brackets, guard plates, protective covers and horizontal shafts. The steel wheels are placed on the rails and The two steel wheels on the shaft are connected by a horizontal shaft. The outer side of the motor for the tower rotation is designed with a guard plate and the rotation speeds of the three motors are different during operation (because the diameter of the tower is changed), and the outer side of the motor for the carrying vehicle is designed There are protective covers, guard plates and protective covers to prevent the scattered shot from damaging the motor; the connection ports include the dust removal and ventilation connection and the shot material separation connection, and the dust removal and ventilation connection is the dust removal equipment. An interface device connecting the exhaust pipe to the shot blasting room, the shot separation connection port is an interface device connected to the screw conveying device and the shot separation equipment.

The tower is hoisted on three load-carrying vehicles, the protective door is closed, and driven by the motor, the tower rotates and moves axially, and the blasting material projected by the shot blaster continuously hits the surface of the tower, thereby completing the shot blasting operation, and the scattered The projectiles and dust produced are effectively treated by other equipment connected through the connection port (dust removal and ventilation connection port and shot material separation connection port).

The beneficial effects of the utility model are: 1. The design of the dust-removing and air-exhausting connection port prepares for the negative pressure environment of the shot blasting room, reduces the dust leakage during the shot blasting operation, and prevents the pollution of the surrounding environment of the shot blasting operation. It also provides a relatively good working environment for workers. The shot blasting room of this device is closed, which has relatively large advantages compared with other open shot blasting cleaning operation equipment, and the dust has little pollution to the environment. 2. The device is designed with eight shot blasters, which can simultaneously blast and clean the wind power tower. During the blasting operation, the wind power tower can rotate around its own axis. The efficiency of the blasting operation is high and the coverage of the blasting operation is wide. There is no dead angle, and the cleaning effect is better; compared with the method of manual grinding and rust removal and welding slag removal, it saves a lot of man-hours, improves production efficiency, and the obtained surface quality is better, and the surface roughness and smoothness are relatively uniform; in addition, The equipment also has the characteristics of non-stop shutdown by human beings, giving full play to the working capacity of the machine and maximizing the benefits of the enterprise. 3. The design of the shot pool and the screw conveying device prepares for the separation and reuse of shot materials, reduces the waste of shot materials, saves resources, and reduces the cost of shot blasting operations. 4. The wind power tower is placed on the carrying vehicle, the protective door is closed, the motor is started, and the blasting operation can be performed according to the predetermined requirements. The manual intervention is less and the degree of automation is high, which greatly reduces the labor of workers. It also avoids the harm to people caused by shot blasting. 5. The shot blasting operation can effectively remove the welding slag, rust spots and other attachments on the surface of the wind power tower, so that the outer wall of the wind power tower has a natural metal color, and the surface quality has been greatly improved, and the surface roughness and smoothness are relatively uniform. It is conducive to improving the adhesion of the coating on the outer wall of the tower tube, reducing the maintenance cost and frequency of the tower tube in the future, saving a lot of material and financial resources and manpower; in addition, the tower tube will produce certain stress concentration during rolling , but the shot blasting operation has a relatively large effect on reducing the stress concentration of the tower.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of another perspective structure of the utility model.

Fig. 3 is a perspective view of the internal structure of the utility model.

Fig. 4 is a schematic view of the front view of the utility model in one viewing direction.

FIG. 5 is a schematic top view of the structure of FIG. 4 .

Fig. 6 is a three-dimensional structural schematic view of the carrier vehicle and tower components of the utility model.

Fig. 7 is a three-dimensional structural schematic view of another viewing direction of the carrier vehicle and the tower components of the present invention.

Fig. 8 is a three-dimensional structural schematic view of the vehicle carrying parts of the present invention.

In the figure: 1 tower, 2 steel rails, 3 motors, 4 carrying vehicles, 5 protective covers, 6 steel wheels, 7 motors, 8 guard plates, 9 brackets, 10 horizontal shafts, 11 shot blasting room, 12 protective doors, 13 sets Pill pool, 14 screw conveying device, 15 pellet separation connection port, 16 dust removal and ventilation connection port, 17 shot blasting device, 18 roller.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and examples, wherein the schematic implementation and description are only used to explain the utility model, but not as a limitation to the utility model.

As shown in Figures 1 to 8, the shot blasting cleaning device for the outer wall of the wind power tower mainly includes a shot blasting device 17, a shot blasting room 11, a shot pool 13, a screw conveyor 14, a carrier vehicle 4 and a connection port; shot blasting The lower side of the middle part of the room 11 is designed with a pill pool 13, and the lower side of the pill pool 13 is designed with a screw conveying device 14, and the bottom of the shot blasting room 11 is designed with a loading vehicle 4 and a steel rail 2, and the shot blasting room 11 and the screw conveyor 14 are designed with a connection mouth (dust removal and ventilation connection port 16 and shot material separation connection port 15), one end of the shot blasting room 11 is designed with a protective door 12; the shot blasting device 17 is a device for launching shot materials, and there are eight in total, which are symmetrically distributed in the shot blasting room. On both sides of the center line of the middle part of the shot room 11, and the position of the shot blaster 17 can be adjusted to make the shot blasting range of the shot blaster 17 the best and meet the shot blasting operations of tower tubes 1 of different sizes; the shot blasting room 11 is a can A confined space is a place for shot blasting. The top of the shot blasting room 11 is designed with three dust removal and ventilation connections 16. The cross section of the top of the shot blasting room 11 at the 16 dust removal and ventilation connections is a trumpet-like shape, which is conducive to dust removal. Collection and circulation, the lower side of the middle part of the shot blasting room 11 is directly connected to the pill pool 13, and the pill pool 13 is directly connected to the silo of the screw conveyor 14; one end of the screw conveyor 14 is designed with a shot separation connection port 15, and the spiral The main function of the conveying device 14 is to collect the scattered projectiles after shot blasting through the pellet pool 13 and transport them to the shot separation connection port 15; there are three carrying vehicles 4 whose structures include motors (motor for tower rotation) 7 and the motor 3 for the walking of the carrying vehicle, rollers, steel 18 wheels, bracket 9, guard plate 8, protective cover 5 and transverse shaft 10, the steel wheel 6 is placed on the rail 2, and the two steel wheels 6 on the coaxial Connected by a horizontal shaft 10, the outer side of the motor 7 for the rotation of the tower 1 is designed with a guard plate 8 and the rotation speeds of the three motors 7 are different during operation (due to the change of the diameter of the tower 1), the outer side of the motor 3 for the carriage 4 to travel A protective cover 5, guard plate 8 and protective cover 5 are designed to prevent the scattered shot from damaging the motor; the connection port includes a dust removal and ventilation connection port 16 and a shot material separation connection port 15, and the dust removal and ventilation connection The port 16 is an interface device connecting the exhaust pipe of the dust removal equipment with the shot blasting room 11, and the shot separation connection port 15 is an interface device connected with the screw conveying device 14 and the shot separation equipment.

Before the shot blasting operation, first adjust the position of the blasting device 17 to make the best range of projection and set the rotating speed of the blasting device 17 impellers. After the preparatory work is completed, adjust the distance between the three carrying vehicles 4 according to the axial length of the tower tube 1 to be shot blasted, place the welded wind power tower tube 1 on the carrying vehicle 4 with a crane, and close the protective door 12. Keep the shot blasting room 11 in a sealed state, start the motor (the motor 7 for the tower rotation and the motor 3 for the carrier vehicle), start the shot blaster 17, the tower 1 rotates slowly and moves slowly in the axial direction, and the shot blasting The projectiles launched by the device 17 are continuously thrown against the outer wall of the tower tube 1, the rust spots, welding slag and other attachments on the outer wall of the tower tube 1 are gradually cleaned up, and the stress concentration phenomenon caused by rolling is also eliminated to a certain extent. until the outer wall of the tower tube 1 is blasted once, close the shot blasting device 17, turn off the motor 7 for the tower tube to rotate, reverse the motor 3 for the carrying vehicle 4 to walk, and under the action of the carrying vehicle 4, The tower tube 1 moves axially in the opposite direction and returns to the original position, the protective door 12 is opened, the tower tube 1 is taken out with a crane, and subsequent processing is performed, and then the tower tube 1 to be processed is placed on the carrying vehicle 4, Shot blasting is carried out, and the wind power tower 1 completes the shot blasting operation in the above process.

Through the above-mentioned embodiments, the attachments such as welding slag and rust on the surface of the wind power tower gradually fall off under the action of throwing and beating, and the cleaning effect is better. The outer wall of the wind power tower has a metallic color, and the surface quality has been greatly improved. The improvement of surface roughness and finish is relatively uniform, and to a certain extent, the stress concentration phenomenon on the outer wall of the tower is reduced.

The above descriptions are only examples of the utility model, and are not intended to limit the patent scope of the utility model. All equivalent structures or equivalent transformations made by using the abstract, instructions and drawings of the utility model, or directly or indirectly used in other related technical fields, are all included in the patent protection scope of the utility model.

Claims (3)

1. The shot blasting cleaning device for the outer wall of the wind power tower is characterized in that it includes a shot blasting machine, a shot blasting room, a pill pool, a screw conveying device, a load-carrying vehicle and a connection port; The lower side is designed with a screw conveying device, the bottom of the shot blasting room is designed with a load-carrying car and steel rails, a connection port is designed on the shot blasting room and the screw conveying device, and a protective door is designed at one end of the shot blasting room; there are eight shot blasting machines in total. , which are respectively symmetrically distributed on both sides of the centerline of the middle part of the shot blasting room; the top of the shot blasting room is designed with three connection ports for dust removal and ventilation, and the lower side of the middle part of the shot blasting room is directly connected to the pill pool, and the pill pool is connected to the feed bin of the screw conveying device Directly connected; one end of the screw conveying device is designed with a shot material separation connection port; the structure of the three load-carrying vehicles includes a motor, a roller, a steel wheel, a bracket, a guard plate, a protective cover and a horizontal shaft, and the steel wheel Placed on the steel rail, the two steel wheels on the same axis are connected by a horizontal shaft. The outer side of the motor for the tower rotation is designed with a guard plate and the speed of the three motors is different during operation. The outer side of the motor for the carrying vehicle is designed with a protective cover. ; The connection port includes a dust removal connection port and a shot separation connection port. 2. The shot blasting device for cleaning the outer wall of a wind power tower according to claim 1, wherein the position of the shot blaster can be adjusted. 3. The shot blasting cleaning device for the outer wall of the wind power tower according to claim 1, characterized in that: the cross section of the top of the shot blasting room at the connection port for dust removal and ventilation is trumpet-like.