CN210332445U

CN210332445U - Powder feeder for repairing roller

Info

Publication number: CN210332445U
Application number: CN201921250764.0U
Authority: CN
Inventors: 郭赛; 常天鹏; 郝亮; 李晓晓
Original assignee: Handan City Handan Steel Attached Enterprise Lida Laser Technology Co Ltd
Current assignee: Handan City Handan Steel Attached Enterprise Lida Laser Technology Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-04-17
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a powder feeder for roll restoration, including storing up the powder jar, store up powder tank top and install first step motor, the (mixing) shaft is installed to first step motor output shaft, install helical blade on the (mixing) shaft, (mixing) shaft bottom fixed mounting has two overhead fenders, store up powder tank bottom end seal and be fixed with out the powder jar, store up powder tank bottom and open the feed opening that has two and play powder jar intercommunication, it is fixed with second step motor to go out powder tank bottom, second step motor output shaft stretches into out in the powder jar and installs two lower fenders, it is equipped with the inert gas air inlet respectively and goes out the powder mouth to go out powder jar both sides. The utility model discloses a retainer plate and lower retainer plate seal the feed opening in turn in the setting, avoid inert gas to let in the powder storage tank, through setting up helical blade, push down the stirring to powder in the powder storage tank, make quantitative powder get into the feed opening fast, prevent the powder caking simultaneously, make the powder ration let in out the powder jar in the powder storage tank, improve and send the powder precision.

Description

Powder feeder for repairing roller

Technical Field

The utility model relates to a roll repair equipment technical field, especially a roll is restoreed and is used powder feeder.

Background

The rolls are the main equipment for rolling steel, and the quality of the rolls plays a very critical role in the quality and quantity of the produced steel. At the same time, the rolls are also consumable parts of the rolling mill. After the roller is used for a long time in a rolling way, the radius of the middle part of the roller is reduced, and pits are formed on the surface of the roller, which can seriously affect the quality of rolled steel. To extend the useful life of a roll, it is often necessary to repair the working surface of the roll.

In the laser cladding repair process, metal alloy powder is conveyed to a laser processing molten pool by a powder feeding device, and the powder conveying precision of the powder feeding device has a decisive role besides the quality of the powder. Therefore, the special powder feeding device for the laser cladding technology is one of the key technologies for ensuring the laser cladding quality.

The existing laser cladding powder feeder is a negative pressure type powder feeder, after pressure gas is introduced, the powder feeding rotary disc is driven to rotate through a servo motor, powder is taken out through a groove of the powder feeding rotary disc, and the powder is conveyed to a powder outlet through gas pressure difference.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a powder feeder for roller restoration is designed.

The technical scheme of the utility model is that the powder feeder for repairing the roller comprises a powder storage tank, wherein one side of the upper part of the powder storage tank is provided with a feed inlet, the feed inlet is provided with a feed cover, the feed cover is in threaded connection with the feed inlet, the top of the powder storage tank is provided with a first step motor, the output shaft of the first step motor extends into the powder storage tank and is provided with a stirring shaft through a coupler, the stirring shaft is provided with a helical blade, the bottom of the stirring shaft is fixedly provided with two upper baffle plates which are symmetrically distributed, the bottom of the powder storage tank is fixedly provided with a powder outlet tank in a sealing way, the bottom of the powder storage tank is provided with two feed openings which are communicated with the powder outlet tank, the feed openings are symmetrically distributed on two sides of the stirring shaft, the first step motor drives the upper baffle plates to open and close the feed openings, the bottom end of the powder outlet tank is fixedly provided with a second step motor, the output shaft of the second step motor extends into, the second step motor drives the lower retainer plate to open and close the feed opening, the upper retainer plate and the lower retainer plate are both sector plates, and an inert gas inlet and a powder outlet are respectively arranged on two sides of the powder outlet tank.

And a sealing bearing is arranged at the center of the bottom of the powder outlet tank, and an output shaft of the second stepping motor is connected with an inner ring of the sealing bearing.

The utility model has the advantages that: through setting up the fender board and lower fender board, go up the fender board and seal the feed opening in turn with lower fender board, avoid inert gas to let in and store up the powder jar, through setting up helical blade, push down the stirring to powder in the storage powder jar, make quantitative powder get into the feed opening fast, prevent the powder caking simultaneously, make the storage powder jar interior powder ration let in out the powder jar, improve and send the powder precision.

Drawings

Fig. 1 is a schematic structural view of a powder feeder for roll reconditioning of the present invention;

FIG. 2 is a sectional view of the interior of the powder storage tank taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view of the interior of the powder outlet tank taken along line B-B of FIG. 1;

in the figure, 1, a powder storage tank; 2. a feed inlet; 3. a feeding cover; 4. a first stepper motor; 5. a stirring shaft; 6. a helical blade; 7. a material baffle plate is arranged; 8. a powder outlet tank; 9. a feeding port; 10. a second stepping motor; 11. a lower retainer plate; 12. sealing the bearing; 13. an inert gas inlet; 14. and a powder outlet.

Detailed Description

The invention is described in detail below with reference to the accompanying drawings, as shown in fig. 1-3: a powder feeder for repairing a roller comprises a powder storage tank 1, a feed inlet 2 is arranged on one side of the upper part of the powder storage tank 1, a feed cover 3 is arranged at the feed inlet 2, the feed cover 3 is in threaded connection with the feed inlet 2, mixed powder for repairing is added from the feed inlet 2, the feed cover 3 is sealed, a first stepping motor 4 is arranged at the top of the powder storage tank 1, an output shaft of the first stepping motor 4 extends into the powder storage tank 1 and is provided with a stirring shaft 5 through a coupler, a spiral blade 6 is arranged on the stirring shaft 5, two upper baffle plates 7 which are symmetrically distributed are fixedly arranged at the bottom of the stirring shaft 5, a powder outlet tank 8 is fixed at the bottom end of the powder storage tank 1 in a sealing manner, two feed openings 9 communicated with the powder outlet tank 8 are formed at the bottom of the powder storage tank 1, the feed openings 9 are symmetrically distributed at two sides of the stirring shaft 5, the upper baffle plates 7 are driven by the first stepping motor, an output shaft of a second stepping motor 10 extends into the powder outlet tank 8 and is provided with two lower material blocking plates 11 which are symmetrically distributed, the second stepping motor 10 drives the lower material blocking plates 11 to open and close the blanking port 9, the upper material blocking plates 7 and the lower material blocking plates 11 are sector plates and can seal the blanking port 9, an inert gas inlet 13 and a powder outlet 14 are respectively arranged on two sides of the powder outlet tank 8, the powder outlet 14 is used for receiving and sending a powder pipe, and the powder pipe is used for receiving and sending a powder head to feed materials.

Go out powder jar 8 bottom center department and install sealed bearing 12, second step motor 10 output shaft and sealed bearing 12 inner circle are connected, and sealed bearing 12 plays sealed effect, prevents to go out powder jar 8 interior powder and stretch into the position discharge that goes out powder jar 8 from second step motor 10 output shaft.

The working principle of the embodiment is as follows: opening the feed cover 3, putting the powder into the powder storage tank 1 from the feed port 2, screwing the feed cover 3, and sealing the feed port 2;

a controller is arranged outside the feeder and is electrically connected with a first stepping motor 4 and a second stepping motor 10, a powder feeding program is preset in the controller, in an initial state, an upper retainer plate 7 and a lower retainer plate 11 both block a feed opening 9, the powder feeding program is started through the controller, the first stepping motor 4 is electrified and rotated 180 degrees to drive a helical blade 6 and the upper retainer plate 7 to rotate 180 degrees, the upper retainer plate 7 is far away from the feed opening 9, the upper end of the feed opening 9 is open at the moment, the lower end of the feed opening 9 is retained by the lower retainer plate 11 to form a groove for containing powder, the powder in a powder storage tank 1 falls into the groove under the action of gravity and the helical blade 6, then the first stepping motor 4 rotates 180 degrees rapidly to drive the upper retainer plate 7 to rotate 180 degrees to seal the upper end of the feed opening 9, then the second stepping motor 10 is electrified and rotated 180 degrees to drive the lower retainer plate 11 to rotate 180 degrees, the lower retainer plate 11 is far away from the feed opening 9, the lower end of the feed opening 9 is opened, the powder in the feed opening 9 falls into the powder outlet tank 8, the inert gas with pressure is continuously introduced into the inert gas inlet 13, the inert gas carries the powder to be discharged from the powder outlet 14, and the upper baffle plate 7 seals the upper end of the feed opening 9, so that the inert gas cannot enter the powder storage tank 1, and the powder feeding precision is ensured;

subsequently, the second stepping motor 10 rotates by 180 degrees again, the lower retainer plate 11 is driven to rotate by 180 degrees, the lower retainer plate 11 is made to retain the lower end of the feed opening 9, then the first stepping motor 4 is electrified to rotate by 180 degrees quickly, the upper retainer plate 7 is far away from the feed opening 9, the upper end of the feed opening 9 is opened, powder enters the feed opening 9, the first stepping motor 4 and the second stepping motor 10 work alternately at intervals, and powder feeding is performed in such a circulating mode.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The powder feeder for repairing the roller comprises a powder storage tank (1) and is characterized in that a feed inlet (2) is arranged on one side of the upper portion of the powder storage tank (1), a feed cover (3) is installed at the position of the feed inlet (2), the feed cover (3) is in threaded connection with the feed inlet (2), a first stepping motor (4) is installed at the top of the powder storage tank (1), an output shaft of the first stepping motor (4) extends into the powder storage tank (1) and is provided with a stirring shaft (5) through a coupler, a spiral blade (6) is installed on the stirring shaft (5), two upper baffle plates (7) which are symmetrically distributed are fixedly installed at the bottom of the stirring shaft (5), a powder outlet tank (8) is fixed at the bottom end of the powder storage tank (1), two lower feed openings (9) communicated with the powder outlet tank (8) are formed at the bottom of the powder storage tank (1), and the lower feed openings (9) are symmetrically distributed on two sides of the stirring, first step motor (4) drive is gone up striker plate (7) and is opened and close feed opening (9), go out powder jar (8) bottom mounting has second step motor (10), second step motor (10) output shaft stretches into in going out powder jar (8) and installs lower striker plate (11) of two symmetric distributions, striker plate (11) are opened and close feed opening (9) under second step motor (10) drive, go up striker plate (7) and lower striker plate (11) are the sector plate, go out powder jar (8) both sides and be equipped with inert gas air inlet (13) and go out powder mouth (14) respectively.

2. The roll repairing powder feeder according to claim 1, wherein a sealing bearing (12) is installed at the center of the bottom of the powder outlet tank (8), and the output shaft of the second stepping motor (10) is connected with the inner ring of the sealing bearing (12).