CN113430315A

CN113430315A - Mud drill sleeve

Info

Publication number: CN113430315A
Application number: CN202110662453.0A
Authority: CN
Inventors: 夏光明; 任勇; 徐浩; 陈其金
Original assignee: Anhui Changjiang Steel Co Ltd
Current assignee: Anhui Changjiang Steel Co Ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-09-24

Abstract

The invention discloses a mud drill sleeve which comprises a fixing piece, wherein a motor is arranged on the fixing piece, an output shaft of the motor is fixedly connected with a first gear, a clamping piece is arranged on the fixing piece, and a mud drill sleeve main body is arranged on the clamping piece; the mud drill bushing main body comprises a connecting plate, bushing plates are distributed on the connecting plate in an array mode, cutter grooves are formed in the bushing plates in an inclined mode, and scrapers are arranged in the cutter grooves; the fixing piece comprises a fixing plate, and a rotating connecting hole is formed in the fixing plate. The mud drill sleeve adopts the distributed scrapers to progressively scrape refractory mud of a leveling molten iron nozzle, ensures uniform blocking of the molten iron nozzle, improves the product performance, enhances the bearing capacity of the distributed scrapers during scraping, reduces the problem of fracture and falling caused by resonance of the scrapers during working, ensures that cutter grooves are distributed in an inclined manner, changes the stress angle of the working point of the scrapers, thereby avoiding the problem of cutter deformation caused by overlarge torque, effectively solves the problems of cutter breakage and blade falling caused by overlarge resistance, and prolongs the service life of the scrapers.

Description

Mud drill sleeve

Technical Field

The invention relates to the technical field of ferrous metallurgy equipment, in particular to a mud drill sleeve.

Background

The mud drill sleeve plays a role in uniformly plugging a high-temperature molten iron water outlet by using refractory mud in iron making, and the performance of the product is very important. The phenomena of cutter breakage, deformation, blunt mouth of a blade, falling off and the like exist in the prior mud drill bushing due to the problems of installation angle and resonance in daily use, so that the prior mud drill bushing immediately becomes a waste product, needs to be replaced in time, requires close attention of an operator, and delays the time of iron-making water. Therefore, not only is time wasted, but also the phenomena of uneven storage and plugging, infirm plugging layer and the like are easily generated in the operation process, and serious safety accidents such as molten iron leakage and the like are easily caused.

Disclosure of Invention

The invention aims to provide a mud drill bushing, which is characterized in that a tapping machine is adjusted to ensure that a positioning block on a fixing piece is horizontal, a mud drill bushing main body is placed on the fixing piece through the matching of a positioning groove and the positioning block, a motor rotates to drive a clamping piece to rotate through gear meshing so as to drive a clamping block to match with a clamping groove to clamp the mud drill bushing main body; the mud drill sleeve adopts a distributed scraper to progressively scrape refractory mud of a leveling iron nozzle, so that the uniform blocking of the iron nozzle is ensured, the product performance is improved, the bearing capacity of the distributed scraper is enhanced during scraping, the problems of fracture and falling caused by resonance of the scraper during working are reduced, cutter grooves are distributed in an inclined manner, and the stress angle of the working point of the scraper is changed, so that the problem of cutter deformation caused by overlarge torque is avoided, the problems of cutter breakage and blade falling caused by overlarge resistance are effectively solved, and the service life of the scraper is prolonged; the mud drill sleeve enhances the strength of the mud drill sleeve and the sharpness of the blade, shortens mud sealing time, reduces replacement frequency, reduces cost and reduces the problem of potential safety hazard of operation; the mud drill bushing is convenient to install and clamp, high in maintenance and replacement efficiency and capable of reducing labor intensity of workers.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a mud drill bushing, mud drill bushing include the mounting, be equipped with the motor on the mounting, the output shaft fastening connection of motor has first gear, is equipped with the holder on the mounting, is equipped with mud drill bushing main part on the holder.

The mud drill bushing main body comprises a connecting plate, bushing plates are distributed on the connecting plate in an array mode, a cutter groove is formed in each bushing plate in an inclined mode, and a scraper is arranged in each cutter groove.

Furthermore, the fixing part comprises a fixing plate, wherein a rotating connecting hole is formed in the fixing plate, supporting blocks distributed in an array mode are arranged on the fixing plate, and positioning blocks are arranged on the supporting blocks.

Furthermore, the motor is fixedly connected with a fixed plate, and the fixed plate is fixedly connected with the tapping machine.

Furthermore, the clamping piece comprises a rotating frame, a through hole is formed in the rotating frame, a limiting groove is formed in the rotating frame, a second gear is arranged below the rotating frame and is in meshing transmission with the first gear, clamping blocks are distributed on the rotating frame in an array mode, and the clamping piece is connected with the fixing piece in a rotating mode through the matching of the limiting groove and the rotating connecting hole.

Furthermore, a round hole is formed in the connecting plate and communicated with the through hole.

Further, the inclination angle of the cutter groove takes the central line of the sleeve plate as a reference, the inclination angle of the cutter groove is 2-3 degrees, and the horizontal inclination angle of the scraper is 8-9 degrees.

Further, when the scrapers in the cutter grooves rotate to pass through the same radial position, the scrapers on the radial scraping surface are guaranteed to work.

Furthermore, a fixing block is arranged below the sleeve plate, a positioning groove is formed in the fixing block, a clamping groove is formed in the fixing block, the positioning block is matched with the positioning groove, and the clamping block is matched with the clamping groove.

Furthermore, the inclination angle of the cutter groove is 2.66 degrees, the horizontal inclination angle of the scraper is 8.75 degrees, and the scraper is made of tungsten carbide.

Further, the blade edge of the scraper blade inclines in the same direction as the blade groove.

The invention has the beneficial effects that:

1. the mud drill bushing adopts the distributed scrapers to progressively scrape refractory mud of a leveling molten iron nozzle, ensures uniform blocking of the molten iron nozzle, improves the product performance, enhances the bearing capacity of the distributed scrapers during scraping, reduces the problem of fracture and falling caused by resonance of the scrapers during working, ensures that cutter grooves are distributed in an inclined manner, changes the stress angle of the working point of the scrapers, thereby avoiding the problem of cutter deformation caused by overlarge torque, effectively solving the problems of cutter breakage and blade falling caused by overlarge resistance and prolonging the service life of the scrapers;

2. the mud drill sleeve disclosed by the invention has the advantages that the strength of the mud drill sleeve and the sharpness of the blade are enhanced, the mud sealing time is shortened, the replacement frequency is reduced, the cost is reduced, and the potential safety hazard problem of operation is reduced;

3. the mud drill sleeve is convenient to mount and clamp, high in maintenance and replacement efficiency and capable of reducing labor intensity of workers.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the mud drill bushing of the present invention;

FIG. 2 is a schematic view of a portion of the mud drill sleeve of the present invention;

FIG. 3 is a schematic view of a portion of the mud drill sleeve of the present invention;

FIG. 4 is a schematic view of the fastener construction of the present invention;

fig. 5 is a schematic view of the construction of the doctor blade of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a mud drill bushing, mud drill bushing includes mounting 1, as shown in fig. 1, fig. 2, fig. 3, is equipped with motor 2 on the mounting 1, and motor 2's output shaft fastening connection has first gear 3, is equipped with holder 4 on the mounting 1, is equipped with mud drill bushing main part 5 on the holder 4.

The fixing member 1 includes a fixing plate 11, as shown in fig. 2, a rotation connection hole 12 is formed in the fixing plate 11, supporting blocks 13 distributed in an array are arranged on the fixing plate 11, positioning blocks 14 are arranged on the supporting blocks 13, the motor 2 is fastened to the fixing plate 11, and the fixing plate 11 is fastened to the tapping machine.

The clamping member 4 comprises a rotating frame 41, as shown in fig. 3, a through hole 42 is formed in the rotating frame 41, a limiting groove 43 is formed in the rotating frame 41, a second gear 44 is arranged below the rotating frame 41, the second gear 44 is in meshing transmission with the first gear 3, clamping blocks 45 are distributed on the rotating frame 41 in an array mode, and the clamping member 4 is in rotating connection with the fixing member 1 through the matching of the limiting groove 43 and the rotating connection hole 12.

The mud drill sleeve main body 5 comprises a connecting plate 51, as shown in fig. 1, 4 and 5, a circular hole 52 is formed in the connecting plate 51, the circular hole 52 is communicated with a through hole 42, sleeve plates 53 are distributed on the connecting plate 51 in an array mode, cutter grooves 54 are formed in the sleeve plates 53 in an inclined mode, the inclined angle of each cutter groove 54 is based on the center line of the sleeve plate 53, the inclined angle of each cutter groove 54 is 2-3 degrees, preferably 2.66 degrees, scrapers 55 are arranged in the cutter grooves 54, when the scrapers 55 in the cutter grooves 54 rotate to pass through the same radial position, the radial scraping surface is guaranteed to work by the scrapers 55, the horizontal inclined angle of each scraper 55 is 8-9 degrees, preferably 8.75 degrees, a fixing block 56 is arranged below the sleeve plate 53, a positioning groove 57 is formed in the fixing block 56, a clamping groove 58 is formed in the fixing block 56, the positioning block 14 is matched with the positioning groove 57, and the clamping block 45 is matched with the clamping groove 58.

When the portable mud drill sleeve clamping device is used, the tapping machine is adjusted to ensure that the positioning block 14 on the fixing piece 1 is horizontal, the mud drill sleeve main body 5 is placed on the fixing piece 1 in a matched mode through the positioning groove 57 and the positioning block 14, the motor 2 rotates to drive the clamping piece 4 to rotate through gear engagement, and then the clamping block 45 is driven to be matched with the clamping groove 58 to clamp the mud drill sleeve main body 5.

Examples

When the cutter groove 54 inclines by 2.66 degrees and the horizontal inclination of the scraper 55 is 8.75 degrees, the inclination direction of the blade of the scraper 55 is the same as that of the cutter groove 54, the scraper 55 is made of an old roller (tungsten carbide material), a high-frequency induction heater is used for welding the scraper in the cutter groove 54, the working time is shortened after improvement, the safety factor is enhanced, the production cost is reduced, compared with the traditional mud drill bushing, the single cost is saved by 360 yuan, the usage amount of the mud drill bushing main body is reduced by about 40 per month, the cost of a single blast furnace is saved by 40 ten thousand yuan per year, and the economic benefit of more than 300 hours is saved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A mud drill sleeve comprises a fixing piece (1), and is characterized in that a motor (2) is arranged on the fixing piece (1), an output shaft of the motor (2) is fixedly connected with a first gear (3), a clamping piece (4) is arranged on the fixing piece (1), and a mud drill sleeve main body (5) is arranged on the clamping piece (4);

the mud drill sleeve main body (5) comprises a connecting plate (51), sleeve plates (53) are distributed on the connecting plate (51) in an array mode, cutter grooves (54) are formed in the sleeve plates (53) in an inclined mode, and scrapers (55) are arranged in the cutter grooves (54).

2. The mud drill sleeve as claimed in claim 1, wherein the fixing member (1) comprises a fixing plate (11), the fixing plate (11) is provided with rotation connecting holes (12), the fixing plate (11) is provided with supporting blocks (13) distributed in an array, and the supporting blocks (13) are provided with positioning blocks (14).

3. A mud drill sleeve according to claim 2, characterized in that the motor (2) is fastened to the fixed plate (11), and the fixed plate (11) is fastened to the tapping machine.

4. The mud drill sleeve as claimed in claim 2, wherein the clamping member (4) comprises a rotating frame (41), a through hole (42) is formed in the rotating frame (41), a limiting groove (43) is formed in the rotating frame (41), a second gear (44) is arranged below the rotating frame (41), the second gear (44) is in meshing transmission with the first gear (3), clamping blocks (45) are distributed on the rotating frame (41) in an array mode, and the clamping member (4) is in rotating connection with the fixing member (1) through the matching of the limiting groove (43) and the rotating connecting hole (12).

5. A mud drill sleeve according to claim 4, wherein said connecting plate (51) is provided with a circular hole (52), said circular hole (52) communicating with said through hole (42).

6. A mud drill sleeve according to claim 1, wherein the inclination angle of the flutes (54) is relative to the centre line of the sleeve plate (53), the inclination angle of the flutes (54) is 2-3 °, and the horizontal inclination angle of the blades (55) is 8-9 °.

7. A mud drill sleeve according to claim 1, characterized in that the blades (55) in the cutting groove (54) are rotated past the same radial position, which ensures that the blades (55) are working at all radial scraping surfaces.

8. A mud drill sleeve according to claim 1, wherein a fixing block (56) is arranged below the sleeve plate (53), a positioning groove (57) is arranged on the fixing block (56), a clamping groove (58) is arranged on the fixing block (56), the positioning block (14) is matched with the positioning groove (57), and the clamping block (45) is matched with the clamping groove (58).

9. A mud drill sleeve according to claim 1, wherein the inclination angle of the cutting groove (54) is 2.66 °, the horizontal inclination angle of the scraper (55) is 8.75 °, and the scraper (55) is made of tungsten carbide.

10. A mud drill sleeve according to claim 1, characterized in that the blade inclination of the blade (55) is the same as the inclination of the tool groove (54).